From: Felix Fietkau Date: Sat, 16 Apr 2011 18:31:05 +0000 (+0000) Subject: kernel: reorganize 2.6.39 patches X-Git-Url: http://git.lede-project.org./?a=commitdiff_plain;h=3fa43f54a267f45e42be641945573450a0a419b8;p=openwrt%2Fstaging%2Frmilecki.git kernel: reorganize 2.6.39 patches SVN-Revision: 26691 --- diff --git a/target/linux/generic/patches-2.6.39/001-fix_localversion.patch b/target/linux/generic/patches-2.6.39/001-fix_localversion.patch deleted file mode 100644 index 0d1bae8d455..00000000000 --- a/target/linux/generic/patches-2.6.39/001-fix_localversion.patch +++ /dev/null @@ -1,11 +0,0 @@ ---- a/scripts/setlocalversion -+++ b/scripts/setlocalversion -@@ -168,7 +168,7 @@ else - # annotated or signed tagged state (as git describe only - # looks at signed or annotated tags - git tag -a/-s) and - # LOCALVERSION= is not specified -- if test "${LOCALVERSION+set}" != "set"; then -+ if test "${CONFIG_LOCALVERSION+set}" != "set"; then - scm=$(scm_version --short) - res="$res${scm:++}" - fi diff --git a/target/linux/generic/patches-2.6.39/008-jffs2_make_lzma_available.patch b/target/linux/generic/patches-2.6.39/008-jffs2_make_lzma_available.patch deleted file mode 100644 index a1be3929410..00000000000 --- a/target/linux/generic/patches-2.6.39/008-jffs2_make_lzma_available.patch +++ /dev/null @@ -1,5142 +0,0 @@ ---- a/fs/jffs2/Kconfig -+++ b/fs/jffs2/Kconfig -@@ -139,6 +139,15 @@ config JFFS2_LZO - This feature was added in July, 2007. Say 'N' if you need - compatibility with older bootloaders or kernels. - -+config JFFS2_LZMA -+ bool "JFFS2 LZMA compression support" if JFFS2_COMPRESSION_OPTIONS -+ select LZMA_COMPRESS -+ select LZMA_DECOMPRESS -+ depends on JFFS2_FS -+ default n -+ help -+ JFFS2 wrapper to the LZMA C SDK -+ - config JFFS2_RTIME - bool "JFFS2 RTIME compression support" if JFFS2_COMPRESSION_OPTIONS - depends on JFFS2_FS ---- a/fs/jffs2/Makefile -+++ b/fs/jffs2/Makefile -@@ -18,4 +18,7 @@ jffs2-$(CONFIG_JFFS2_RUBIN) += compr_rub - jffs2-$(CONFIG_JFFS2_RTIME) += compr_rtime.o - jffs2-$(CONFIG_JFFS2_ZLIB) += compr_zlib.o - jffs2-$(CONFIG_JFFS2_LZO) += compr_lzo.o -+jffs2-$(CONFIG_JFFS2_LZMA) += compr_lzma.o - jffs2-$(CONFIG_JFFS2_SUMMARY) += summary.o -+ -+CFLAGS_compr_lzma.o += -Iinclude/linux -Ilib/lzma ---- a/fs/jffs2/compr.c -+++ b/fs/jffs2/compr.c -@@ -320,6 +320,9 @@ int __init jffs2_compressors_init(void) - #ifdef CONFIG_JFFS2_LZO - jffs2_lzo_init(); - #endif -+#ifdef CONFIG_JFFS2_LZMA -+ jffs2_lzma_init(); -+#endif - /* Setting default compression mode */ - #ifdef CONFIG_JFFS2_CMODE_NONE - jffs2_compression_mode = JFFS2_COMPR_MODE_NONE; -@@ -343,6 +346,9 @@ int __init jffs2_compressors_init(void) - int jffs2_compressors_exit(void) - { - /* Unregistering compressors */ -+#ifdef CONFIG_JFFS2_LZMA -+ jffs2_lzma_exit(); -+#endif - #ifdef CONFIG_JFFS2_LZO - jffs2_lzo_exit(); - #endif ---- a/fs/jffs2/compr.h -+++ b/fs/jffs2/compr.h -@@ -29,9 +29,9 @@ - #define JFFS2_DYNRUBIN_PRIORITY 20 - #define JFFS2_LZARI_PRIORITY 30 - #define JFFS2_RTIME_PRIORITY 50 --#define JFFS2_ZLIB_PRIORITY 60 --#define JFFS2_LZO_PRIORITY 80 -- -+#define JFFS2_LZMA_PRIORITY 70 -+#define JFFS2_ZLIB_PRIORITY 80 -+#define JFFS2_LZO_PRIORITY 90 - - #define JFFS2_RUBINMIPS_DISABLED /* RUBINs will be used only */ - #define JFFS2_DYNRUBIN_DISABLED /* for decompression */ -@@ -99,5 +99,9 @@ void jffs2_zlib_exit(void); - int jffs2_lzo_init(void); - void jffs2_lzo_exit(void); - #endif -+#ifdef CONFIG_JFFS2_LZMA -+int jffs2_lzma_init(void); -+void jffs2_lzma_exit(void); -+#endif - - #endif /* __JFFS2_COMPR_H__ */ ---- /dev/null -+++ b/fs/jffs2/compr_lzma.c -@@ -0,0 +1,128 @@ -+/* -+ * JFFS2 -- Journalling Flash File System, Version 2. -+ * -+ * For licensing information, see the file 'LICENCE' in this directory. -+ * -+ * JFFS2 wrapper to the LZMA C SDK -+ * -+ */ -+ -+#include -+#include "compr.h" -+ -+#ifdef __KERNEL__ -+ static DEFINE_MUTEX(deflate_mutex); -+#endif -+ -+CLzmaEncHandle *p; -+Byte propsEncoded[LZMA_PROPS_SIZE]; -+SizeT propsSize = sizeof(propsEncoded); -+ -+STATIC void lzma_free_workspace(void) -+{ -+ LzmaEnc_Destroy(p, &lzma_alloc, &lzma_alloc); -+} -+ -+STATIC int INIT lzma_alloc_workspace(CLzmaEncProps *props) -+{ -+ if ((p = (CLzmaEncHandle *)LzmaEnc_Create(&lzma_alloc)) == NULL) -+ { -+ PRINT_ERROR("Failed to allocate lzma deflate workspace\n"); -+ return -ENOMEM; -+ } -+ -+ if (LzmaEnc_SetProps(p, props) != SZ_OK) -+ { -+ lzma_free_workspace(); -+ return -1; -+ } -+ -+ if (LzmaEnc_WriteProperties(p, propsEncoded, &propsSize) != SZ_OK) -+ { -+ lzma_free_workspace(); -+ return -1; -+ } -+ -+ return 0; -+} -+ -+STATIC int jffs2_lzma_compress(unsigned char *data_in, unsigned char *cpage_out, -+ uint32_t *sourcelen, uint32_t *dstlen) -+{ -+ SizeT compress_size = (SizeT)(*dstlen); -+ int ret; -+ -+ #ifdef __KERNEL__ -+ mutex_lock(&deflate_mutex); -+ #endif -+ -+ ret = LzmaEnc_MemEncode(p, cpage_out, &compress_size, data_in, *sourcelen, -+ 0, NULL, &lzma_alloc, &lzma_alloc); -+ -+ #ifdef __KERNEL__ -+ mutex_unlock(&deflate_mutex); -+ #endif -+ -+ if (ret != SZ_OK) -+ return -1; -+ -+ *dstlen = (uint32_t)compress_size; -+ -+ return 0; -+} -+ -+STATIC int jffs2_lzma_decompress(unsigned char *data_in, unsigned char *cpage_out, -+ uint32_t srclen, uint32_t destlen) -+{ -+ int ret; -+ SizeT dl = (SizeT)destlen; -+ SizeT sl = (SizeT)srclen; -+ ELzmaStatus status; -+ -+ ret = LzmaDecode(cpage_out, &dl, data_in, &sl, propsEncoded, -+ propsSize, LZMA_FINISH_ANY, &status, &lzma_alloc); -+ -+ if (ret != SZ_OK || status == LZMA_STATUS_NOT_FINISHED || dl != (SizeT)destlen) -+ return -1; -+ -+ return 0; -+} -+ -+static struct jffs2_compressor jffs2_lzma_comp = { -+ .priority = JFFS2_LZMA_PRIORITY, -+ .name = "lzma", -+ .compr = JFFS2_COMPR_LZMA, -+ .compress = &jffs2_lzma_compress, -+ .decompress = &jffs2_lzma_decompress, -+ .disabled = 0, -+}; -+ -+int INIT jffs2_lzma_init(void) -+{ -+ int ret; -+ CLzmaEncProps props; -+ LzmaEncProps_Init(&props); -+ -+ props.dictSize = LZMA_BEST_DICT(0x2000); -+ props.level = LZMA_BEST_LEVEL; -+ props.lc = LZMA_BEST_LC; -+ props.lp = LZMA_BEST_LP; -+ props.pb = LZMA_BEST_PB; -+ props.fb = LZMA_BEST_FB; -+ -+ ret = lzma_alloc_workspace(&props); -+ if (ret < 0) -+ return ret; -+ -+ ret = jffs2_register_compressor(&jffs2_lzma_comp); -+ if (ret) -+ lzma_free_workspace(); -+ -+ return ret; -+} -+ -+void jffs2_lzma_exit(void) -+{ -+ jffs2_unregister_compressor(&jffs2_lzma_comp); -+ lzma_free_workspace(); -+} ---- a/fs/jffs2/super.c -+++ b/fs/jffs2/super.c -@@ -255,14 +255,41 @@ static int __init init_jffs2_fs(void) - BUILD_BUG_ON(sizeof(struct jffs2_raw_inode) != 68); - BUILD_BUG_ON(sizeof(struct jffs2_raw_summary) != 32); - -- printk(KERN_INFO "JFFS2 version 2.2." -+ printk(KERN_INFO "JFFS2 version 2.2" - #ifdef CONFIG_JFFS2_FS_WRITEBUFFER - " (NAND)" - #endif - #ifdef CONFIG_JFFS2_SUMMARY -- " (SUMMARY) " -+ " (SUMMARY)" - #endif -- " © 2001-2006 Red Hat, Inc.\n"); -+#ifdef CONFIG_JFFS2_ZLIB -+ " (ZLIB)" -+#endif -+#ifdef CONFIG_JFFS2_LZO -+ " (LZO)" -+#endif -+#ifdef CONFIG_JFFS2_LZMA -+ " (LZMA)" -+#endif -+#ifdef CONFIG_JFFS2_RTIME -+ " (RTIME)" -+#endif -+#ifdef CONFIG_JFFS2_RUBIN -+ " (RUBIN)" -+#endif -+#ifdef CONFIG_JFFS2_CMODE_NONE -+ " (CMODE_NONE)" -+#endif -+#ifdef CONFIG_JFFS2_CMODE_PRIORITY -+ " (CMODE_PRIORITY)" -+#endif -+#ifdef CONFIG_JFFS2_CMODE_SIZE -+ " (CMODE_SIZE)" -+#endif -+#ifdef CONFIG_JFFS2_CMODE_FAVOURLZO -+ " (CMODE_FAVOURLZO)" -+#endif -+ " (c) 2001-2006 Red Hat, Inc.\n"); - - jffs2_inode_cachep = kmem_cache_create("jffs2_i", - sizeof(struct jffs2_inode_info), ---- a/include/linux/jffs2.h -+++ b/include/linux/jffs2.h -@@ -46,6 +46,7 @@ - #define JFFS2_COMPR_DYNRUBIN 0x05 - #define JFFS2_COMPR_ZLIB 0x06 - #define JFFS2_COMPR_LZO 0x07 -+#define JFFS2_COMPR_LZMA 0x08 - /* Compatibility flags. */ - #define JFFS2_COMPAT_MASK 0xc000 /* What do to if an unknown nodetype is found */ - #define JFFS2_NODE_ACCURATE 0x2000 ---- /dev/null -+++ b/include/linux/lzma.h -@@ -0,0 +1,62 @@ -+#ifndef __LZMA_H__ -+#define __LZMA_H__ -+ -+#ifdef __KERNEL__ -+ #include -+ #include -+ #include -+ #include -+ #include -+ #define LZMA_MALLOC vmalloc -+ #define LZMA_FREE vfree -+ #define PRINT_ERROR(msg) printk(KERN_WARNING #msg) -+ #define INIT __init -+ #define STATIC static -+#else -+ #include -+ #include -+ #include -+ #include -+ #include -+ #include -+ #include -+ #include -+ #ifndef PAGE_SIZE -+ extern int page_size; -+ #define PAGE_SIZE page_size -+ #endif -+ #define LZMA_MALLOC malloc -+ #define LZMA_FREE free -+ #define PRINT_ERROR(msg) fprintf(stderr, msg) -+ #define INIT -+ #define STATIC -+#endif -+ -+#include "lzma/LzmaDec.h" -+#include "lzma/LzmaEnc.h" -+ -+#define LZMA_BEST_LEVEL (9) -+#define LZMA_BEST_LC (0) -+#define LZMA_BEST_LP (0) -+#define LZMA_BEST_PB (0) -+#define LZMA_BEST_FB (273) -+ -+#define LZMA_BEST_DICT(n) (((int)((n) / 2)) * 2) -+ -+static void *p_lzma_malloc(void *p, size_t size) -+{ -+ if (size == 0) -+ return NULL; -+ -+ return LZMA_MALLOC(size); -+} -+ -+static void p_lzma_free(void *p, void *address) -+{ -+ if (address != NULL) -+ LZMA_FREE(address); -+} -+ -+static ISzAlloc lzma_alloc = {p_lzma_malloc, p_lzma_free}; -+ -+#endif ---- /dev/null -+++ b/include/linux/lzma/LzFind.h -@@ -0,0 +1,115 @@ -+/* LzFind.h -- Match finder for LZ algorithms -+2009-04-22 : Igor Pavlov : Public domain */ -+ -+#ifndef __LZ_FIND_H -+#define __LZ_FIND_H -+ -+#include "Types.h" -+ -+#ifdef __cplusplus -+extern "C" { -+#endif -+ -+typedef UInt32 CLzRef; -+ -+typedef struct _CMatchFinder -+{ -+ Byte *buffer; -+ UInt32 pos; -+ UInt32 posLimit; -+ UInt32 streamPos; -+ UInt32 lenLimit; -+ -+ UInt32 cyclicBufferPos; -+ UInt32 cyclicBufferSize; /* it must be = (historySize + 1) */ -+ -+ UInt32 matchMaxLen; -+ CLzRef *hash; -+ CLzRef *son; -+ UInt32 hashMask; -+ UInt32 cutValue; -+ -+ Byte *bufferBase; -+ ISeqInStream *stream; -+ int streamEndWasReached; -+ -+ UInt32 blockSize; -+ UInt32 keepSizeBefore; -+ UInt32 keepSizeAfter; -+ -+ UInt32 numHashBytes; -+ int directInput; -+ size_t directInputRem; -+ int btMode; -+ int bigHash; -+ UInt32 historySize; -+ UInt32 fixedHashSize; -+ UInt32 hashSizeSum; -+ UInt32 numSons; -+ SRes result; -+ UInt32 crc[256]; -+} CMatchFinder; -+ -+#define Inline_MatchFinder_GetPointerToCurrentPos(p) ((p)->buffer) -+#define Inline_MatchFinder_GetIndexByte(p, index) ((p)->buffer[(Int32)(index)]) -+ -+#define Inline_MatchFinder_GetNumAvailableBytes(p) ((p)->streamPos - (p)->pos) -+ -+int MatchFinder_NeedMove(CMatchFinder *p); -+Byte *MatchFinder_GetPointerToCurrentPos(CMatchFinder *p); -+void MatchFinder_MoveBlock(CMatchFinder *p); -+void MatchFinder_ReadIfRequired(CMatchFinder *p); -+ -+void MatchFinder_Construct(CMatchFinder *p); -+ -+/* Conditions: -+ historySize <= 3 GB -+ keepAddBufferBefore + matchMaxLen + keepAddBufferAfter < 511MB -+*/ -+int MatchFinder_Create(CMatchFinder *p, UInt32 historySize, -+ UInt32 keepAddBufferBefore, UInt32 matchMaxLen, UInt32 keepAddBufferAfter, -+ ISzAlloc *alloc); -+void MatchFinder_Free(CMatchFinder *p, ISzAlloc *alloc); -+void MatchFinder_Normalize3(UInt32 subValue, CLzRef *items, UInt32 numItems); -+void MatchFinder_ReduceOffsets(CMatchFinder *p, UInt32 subValue); -+ -+UInt32 * GetMatchesSpec1(UInt32 lenLimit, UInt32 curMatch, UInt32 pos, const Byte *buffer, CLzRef *son, -+ UInt32 _cyclicBufferPos, UInt32 _cyclicBufferSize, UInt32 _cutValue, -+ UInt32 *distances, UInt32 maxLen); -+ -+/* -+Conditions: -+ Mf_GetNumAvailableBytes_Func must be called before each Mf_GetMatchLen_Func. -+ Mf_GetPointerToCurrentPos_Func's result must be used only before any other function -+*/ -+ -+typedef void (*Mf_Init_Func)(void *object); -+typedef Byte (*Mf_GetIndexByte_Func)(void *object, Int32 index); -+typedef UInt32 (*Mf_GetNumAvailableBytes_Func)(void *object); -+typedef const Byte * (*Mf_GetPointerToCurrentPos_Func)(void *object); -+typedef UInt32 (*Mf_GetMatches_Func)(void *object, UInt32 *distances); -+typedef void (*Mf_Skip_Func)(void *object, UInt32); -+ -+typedef struct _IMatchFinder -+{ -+ Mf_Init_Func Init; -+ Mf_GetIndexByte_Func GetIndexByte; -+ Mf_GetNumAvailableBytes_Func GetNumAvailableBytes; -+ Mf_GetPointerToCurrentPos_Func GetPointerToCurrentPos; -+ Mf_GetMatches_Func GetMatches; -+ Mf_Skip_Func Skip; -+} IMatchFinder; -+ -+void MatchFinder_CreateVTable(CMatchFinder *p, IMatchFinder *vTable); -+ -+void MatchFinder_Init(CMatchFinder *p); -+UInt32 Bt3Zip_MatchFinder_GetMatches(CMatchFinder *p, UInt32 *distances); -+UInt32 Hc3Zip_MatchFinder_GetMatches(CMatchFinder *p, UInt32 *distances); -+void Bt3Zip_MatchFinder_Skip(CMatchFinder *p, UInt32 num); -+void Hc3Zip_MatchFinder_Skip(CMatchFinder *p, UInt32 num); -+ -+#ifdef __cplusplus -+} -+#endif -+ -+#endif ---- /dev/null -+++ b/include/linux/lzma/LzHash.h -@@ -0,0 +1,54 @@ -+/* LzHash.h -- HASH functions for LZ algorithms -+2009-02-07 : Igor Pavlov : Public domain */ -+ -+#ifndef __LZ_HASH_H -+#define __LZ_HASH_H -+ -+#define kHash2Size (1 << 10) -+#define kHash3Size (1 << 16) -+#define kHash4Size (1 << 20) -+ -+#define kFix3HashSize (kHash2Size) -+#define kFix4HashSize (kHash2Size + kHash3Size) -+#define kFix5HashSize (kHash2Size + kHash3Size + kHash4Size) -+ -+#define HASH2_CALC hashValue = cur[0] | ((UInt32)cur[1] << 8); -+ -+#define HASH3_CALC { \ -+ UInt32 temp = p->crc[cur[0]] ^ cur[1]; \ -+ hash2Value = temp & (kHash2Size - 1); \ -+ hashValue = (temp ^ ((UInt32)cur[2] << 8)) & p->hashMask; } -+ -+#define HASH4_CALC { \ -+ UInt32 temp = p->crc[cur[0]] ^ cur[1]; \ -+ hash2Value = temp & (kHash2Size - 1); \ -+ hash3Value = (temp ^ ((UInt32)cur[2] << 8)) & (kHash3Size - 1); \ -+ hashValue = (temp ^ ((UInt32)cur[2] << 8) ^ (p->crc[cur[3]] << 5)) & p->hashMask; } -+ -+#define HASH5_CALC { \ -+ UInt32 temp = p->crc[cur[0]] ^ cur[1]; \ -+ hash2Value = temp & (kHash2Size - 1); \ -+ hash3Value = (temp ^ ((UInt32)cur[2] << 8)) & (kHash3Size - 1); \ -+ hash4Value = (temp ^ ((UInt32)cur[2] << 8) ^ (p->crc[cur[3]] << 5)); \ -+ hashValue = (hash4Value ^ (p->crc[cur[4]] << 3)) & p->hashMask; \ -+ hash4Value &= (kHash4Size - 1); } -+ -+/* #define HASH_ZIP_CALC hashValue = ((cur[0] | ((UInt32)cur[1] << 8)) ^ p->crc[cur[2]]) & 0xFFFF; */ -+#define HASH_ZIP_CALC hashValue = ((cur[2] | ((UInt32)cur[0] << 8)) ^ p->crc[cur[1]]) & 0xFFFF; -+ -+ -+#define MT_HASH2_CALC \ -+ hash2Value = (p->crc[cur[0]] ^ cur[1]) & (kHash2Size - 1); -+ -+#define MT_HASH3_CALC { \ -+ UInt32 temp = p->crc[cur[0]] ^ cur[1]; \ -+ hash2Value = temp & (kHash2Size - 1); \ -+ hash3Value = (temp ^ ((UInt32)cur[2] << 8)) & (kHash3Size - 1); } -+ -+#define MT_HASH4_CALC { \ -+ UInt32 temp = p->crc[cur[0]] ^ cur[1]; \ -+ hash2Value = temp & (kHash2Size - 1); \ -+ hash3Value = (temp ^ ((UInt32)cur[2] << 8)) & (kHash3Size - 1); \ -+ hash4Value = (temp ^ ((UInt32)cur[2] << 8) ^ (p->crc[cur[3]] << 5)) & (kHash4Size - 1); } -+ -+#endif ---- /dev/null -+++ b/include/linux/lzma/LzmaDec.h -@@ -0,0 +1,231 @@ -+/* LzmaDec.h -- LZMA Decoder -+2009-02-07 : Igor Pavlov : Public domain */ -+ -+#ifndef __LZMA_DEC_H -+#define __LZMA_DEC_H -+ -+#include "Types.h" -+ -+#ifdef __cplusplus -+extern "C" { -+#endif -+ -+/* #define _LZMA_PROB32 */ -+/* _LZMA_PROB32 can increase the speed on some CPUs, -+ but memory usage for CLzmaDec::probs will be doubled in that case */ -+ -+#ifdef _LZMA_PROB32 -+#define CLzmaProb UInt32 -+#else -+#define CLzmaProb UInt16 -+#endif -+ -+ -+/* ---------- LZMA Properties ---------- */ -+ -+#define LZMA_PROPS_SIZE 5 -+ -+typedef struct _CLzmaProps -+{ -+ unsigned lc, lp, pb; -+ UInt32 dicSize; -+} CLzmaProps; -+ -+/* LzmaProps_Decode - decodes properties -+Returns: -+ SZ_OK -+ SZ_ERROR_UNSUPPORTED - Unsupported properties -+*/ -+ -+SRes LzmaProps_Decode(CLzmaProps *p, const Byte *data, unsigned size); -+ -+ -+/* ---------- LZMA Decoder state ---------- */ -+ -+/* LZMA_REQUIRED_INPUT_MAX = number of required input bytes for worst case. -+ Num bits = log2((2^11 / 31) ^ 22) + 26 < 134 + 26 = 160; */ -+ -+#define LZMA_REQUIRED_INPUT_MAX 20 -+ -+typedef struct -+{ -+ CLzmaProps prop; -+ CLzmaProb *probs; -+ Byte *dic; -+ const Byte *buf; -+ UInt32 range, code; -+ SizeT dicPos; -+ SizeT dicBufSize; -+ UInt32 processedPos; -+ UInt32 checkDicSize; -+ unsigned state; -+ UInt32 reps[4]; -+ unsigned remainLen; -+ int needFlush; -+ int needInitState; -+ UInt32 numProbs; -+ unsigned tempBufSize; -+ Byte tempBuf[LZMA_REQUIRED_INPUT_MAX]; -+} CLzmaDec; -+ -+#define LzmaDec_Construct(p) { (p)->dic = 0; (p)->probs = 0; } -+ -+void LzmaDec_Init(CLzmaDec *p); -+ -+/* There are two types of LZMA streams: -+ 0) Stream with end mark. That end mark adds about 6 bytes to compressed size. -+ 1) Stream without end mark. You must know exact uncompressed size to decompress such stream. */ -+ -+typedef enum -+{ -+ LZMA_FINISH_ANY, /* finish at any point */ -+ LZMA_FINISH_END /* block must be finished at the end */ -+} ELzmaFinishMode; -+ -+/* ELzmaFinishMode has meaning only if the decoding reaches output limit !!! -+ -+ You must use LZMA_FINISH_END, when you know that current output buffer -+ covers last bytes of block. In other cases you must use LZMA_FINISH_ANY. -+ -+ If LZMA decoder sees end marker before reaching output limit, it returns SZ_OK, -+ and output value of destLen will be less than output buffer size limit. -+ You can check status result also. -+ -+ You can use multiple checks to test data integrity after full decompression: -+ 1) Check Result and "status" variable. -+ 2) Check that output(destLen) = uncompressedSize, if you know real uncompressedSize. -+ 3) Check that output(srcLen) = compressedSize, if you know real compressedSize. -+ You must use correct finish mode in that case. */ -+ -+typedef enum -+{ -+ LZMA_STATUS_NOT_SPECIFIED, /* use main error code instead */ -+ LZMA_STATUS_FINISHED_WITH_MARK, /* stream was finished with end mark. */ -+ LZMA_STATUS_NOT_FINISHED, /* stream was not finished */ -+ LZMA_STATUS_NEEDS_MORE_INPUT, /* you must provide more input bytes */ -+ LZMA_STATUS_MAYBE_FINISHED_WITHOUT_MARK /* there is probability that stream was finished without end mark */ -+} ELzmaStatus; -+ -+/* ELzmaStatus is used only as output value for function call */ -+ -+ -+/* ---------- Interfaces ---------- */ -+ -+/* There are 3 levels of interfaces: -+ 1) Dictionary Interface -+ 2) Buffer Interface -+ 3) One Call Interface -+ You can select any of these interfaces, but don't mix functions from different -+ groups for same object. */ -+ -+ -+/* There are two variants to allocate state for Dictionary Interface: -+ 1) LzmaDec_Allocate / LzmaDec_Free -+ 2) LzmaDec_AllocateProbs / LzmaDec_FreeProbs -+ You can use variant 2, if you set dictionary buffer manually. -+ For Buffer Interface you must always use variant 1. -+ -+LzmaDec_Allocate* can return: -+ SZ_OK -+ SZ_ERROR_MEM - Memory allocation error -+ SZ_ERROR_UNSUPPORTED - Unsupported properties -+*/ -+ -+SRes LzmaDec_AllocateProbs(CLzmaDec *p, const Byte *props, unsigned propsSize, ISzAlloc *alloc); -+void LzmaDec_FreeProbs(CLzmaDec *p, ISzAlloc *alloc); -+ -+SRes LzmaDec_Allocate(CLzmaDec *state, const Byte *prop, unsigned propsSize, ISzAlloc *alloc); -+void LzmaDec_Free(CLzmaDec *state, ISzAlloc *alloc); -+ -+/* ---------- Dictionary Interface ---------- */ -+ -+/* You can use it, if you want to eliminate the overhead for data copying from -+ dictionary to some other external buffer. -+ You must work with CLzmaDec variables directly in this interface. -+ -+ STEPS: -+ LzmaDec_Constr() -+ LzmaDec_Allocate() -+ for (each new stream) -+ { -+ LzmaDec_Init() -+ while (it needs more decompression) -+ { -+ LzmaDec_DecodeToDic() -+ use data from CLzmaDec::dic and update CLzmaDec::dicPos -+ } -+ } -+ LzmaDec_Free() -+*/ -+ -+/* LzmaDec_DecodeToDic -+ -+ The decoding to internal dictionary buffer (CLzmaDec::dic). -+ You must manually update CLzmaDec::dicPos, if it reaches CLzmaDec::dicBufSize !!! -+ -+finishMode: -+ It has meaning only if the decoding reaches output limit (dicLimit). -+ LZMA_FINISH_ANY - Decode just dicLimit bytes. -+ LZMA_FINISH_END - Stream must be finished after dicLimit. -+ -+Returns: -+ SZ_OK -+ status: -+ LZMA_STATUS_FINISHED_WITH_MARK -+ LZMA_STATUS_NOT_FINISHED -+ LZMA_STATUS_NEEDS_MORE_INPUT -+ LZMA_STATUS_MAYBE_FINISHED_WITHOUT_MARK -+ SZ_ERROR_DATA - Data error -+*/ -+ -+SRes LzmaDec_DecodeToDic(CLzmaDec *p, SizeT dicLimit, -+ const Byte *src, SizeT *srcLen, ELzmaFinishMode finishMode, ELzmaStatus *status); -+ -+ -+/* ---------- Buffer Interface ---------- */ -+ -+/* It's zlib-like interface. -+ See LzmaDec_DecodeToDic description for information about STEPS and return results, -+ but you must use LzmaDec_DecodeToBuf instead of LzmaDec_DecodeToDic and you don't need -+ to work with CLzmaDec variables manually. -+ -+finishMode: -+ It has meaning only if the decoding reaches output limit (*destLen). -+ LZMA_FINISH_ANY - Decode just destLen bytes. -+ LZMA_FINISH_END - Stream must be finished after (*destLen). -+*/ -+ -+SRes LzmaDec_DecodeToBuf(CLzmaDec *p, Byte *dest, SizeT *destLen, -+ const Byte *src, SizeT *srcLen, ELzmaFinishMode finishMode, ELzmaStatus *status); -+ -+ -+/* ---------- One Call Interface ---------- */ -+ -+/* LzmaDecode -+ -+finishMode: -+ It has meaning only if the decoding reaches output limit (*destLen). -+ LZMA_FINISH_ANY - Decode just destLen bytes. -+ LZMA_FINISH_END - Stream must be finished after (*destLen). -+ -+Returns: -+ SZ_OK -+ status: -+ LZMA_STATUS_FINISHED_WITH_MARK -+ LZMA_STATUS_NOT_FINISHED -+ LZMA_STATUS_MAYBE_FINISHED_WITHOUT_MARK -+ SZ_ERROR_DATA - Data error -+ SZ_ERROR_MEM - Memory allocation error -+ SZ_ERROR_UNSUPPORTED - Unsupported properties -+ SZ_ERROR_INPUT_EOF - It needs more bytes in input buffer (src). -+*/ -+ -+SRes LzmaDecode(Byte *dest, SizeT *destLen, const Byte *src, SizeT *srcLen, -+ const Byte *propData, unsigned propSize, ELzmaFinishMode finishMode, -+ ELzmaStatus *status, ISzAlloc *alloc); -+ -+#ifdef __cplusplus -+} -+#endif -+ -+#endif ---- /dev/null -+++ b/include/linux/lzma/LzmaEnc.h -@@ -0,0 +1,80 @@ -+/* LzmaEnc.h -- LZMA Encoder -+2009-02-07 : Igor Pavlov : Public domain */ -+ -+#ifndef __LZMA_ENC_H -+#define __LZMA_ENC_H -+ -+#include "Types.h" -+ -+#ifdef __cplusplus -+extern "C" { -+#endif -+ -+#define LZMA_PROPS_SIZE 5 -+ -+typedef struct _CLzmaEncProps -+{ -+ int level; /* 0 <= level <= 9 */ -+ UInt32 dictSize; /* (1 << 12) <= dictSize <= (1 << 27) for 32-bit version -+ (1 << 12) <= dictSize <= (1 << 30) for 64-bit version -+ default = (1 << 24) */ -+ int lc; /* 0 <= lc <= 8, default = 3 */ -+ int lp; /* 0 <= lp <= 4, default = 0 */ -+ int pb; /* 0 <= pb <= 4, default = 2 */ -+ int algo; /* 0 - fast, 1 - normal, default = 1 */ -+ int fb; /* 5 <= fb <= 273, default = 32 */ -+ int btMode; /* 0 - hashChain Mode, 1 - binTree mode - normal, default = 1 */ -+ int numHashBytes; /* 2, 3 or 4, default = 4 */ -+ UInt32 mc; /* 1 <= mc <= (1 << 30), default = 32 */ -+ unsigned writeEndMark; /* 0 - do not write EOPM, 1 - write EOPM, default = 0 */ -+ int numThreads; /* 1 or 2, default = 2 */ -+} CLzmaEncProps; -+ -+void LzmaEncProps_Init(CLzmaEncProps *p); -+void LzmaEncProps_Normalize(CLzmaEncProps *p); -+UInt32 LzmaEncProps_GetDictSize(const CLzmaEncProps *props2); -+ -+ -+/* ---------- CLzmaEncHandle Interface ---------- */ -+ -+/* LzmaEnc_* functions can return the following exit codes: -+Returns: -+ SZ_OK - OK -+ SZ_ERROR_MEM - Memory allocation error -+ SZ_ERROR_PARAM - Incorrect paramater in props -+ SZ_ERROR_WRITE - Write callback error. -+ SZ_ERROR_PROGRESS - some break from progress callback -+ SZ_ERROR_THREAD - errors in multithreading functions (only for Mt version) -+*/ -+ -+typedef void * CLzmaEncHandle; -+ -+CLzmaEncHandle LzmaEnc_Create(ISzAlloc *alloc); -+void LzmaEnc_Destroy(CLzmaEncHandle p, ISzAlloc *alloc, ISzAlloc *allocBig); -+SRes LzmaEnc_SetProps(CLzmaEncHandle p, const CLzmaEncProps *props); -+SRes LzmaEnc_WriteProperties(CLzmaEncHandle p, Byte *properties, SizeT *size); -+SRes LzmaEnc_Encode(CLzmaEncHandle p, ISeqOutStream *outStream, ISeqInStream *inStream, -+ ICompressProgress *progress, ISzAlloc *alloc, ISzAlloc *allocBig); -+SRes LzmaEnc_MemEncode(CLzmaEncHandle p, Byte *dest, SizeT *destLen, const Byte *src, SizeT srcLen, -+ int writeEndMark, ICompressProgress *progress, ISzAlloc *alloc, ISzAlloc *allocBig); -+ -+/* ---------- One Call Interface ---------- */ -+ -+/* LzmaEncode -+Return code: -+ SZ_OK - OK -+ SZ_ERROR_MEM - Memory allocation error -+ SZ_ERROR_PARAM - Incorrect paramater -+ SZ_ERROR_OUTPUT_EOF - output buffer overflow -+ SZ_ERROR_THREAD - errors in multithreading functions (only for Mt version) -+*/ -+ -+SRes LzmaEncode(Byte *dest, SizeT *destLen, const Byte *src, SizeT srcLen, -+ const CLzmaEncProps *props, Byte *propsEncoded, SizeT *propsSize, int writeEndMark, -+ ICompressProgress *progress, ISzAlloc *alloc, ISzAlloc *allocBig); -+ -+#ifdef __cplusplus -+} -+#endif -+ -+#endif ---- /dev/null -+++ b/include/linux/lzma/Types.h -@@ -0,0 +1,226 @@ -+/* Types.h -- Basic types -+2009-11-23 : Igor Pavlov : Public domain */ -+ -+#ifndef __7Z_TYPES_H -+#define __7Z_TYPES_H -+ -+#include -+ -+#ifdef _WIN32 -+#include -+#endif -+ -+#ifndef EXTERN_C_BEGIN -+#ifdef __cplusplus -+#define EXTERN_C_BEGIN extern "C" { -+#define EXTERN_C_END } -+#else -+#define EXTERN_C_BEGIN -+#define EXTERN_C_END -+#endif -+#endif -+ -+EXTERN_C_BEGIN -+ -+#define SZ_OK 0 -+ -+#define SZ_ERROR_DATA 1 -+#define SZ_ERROR_MEM 2 -+#define SZ_ERROR_CRC 3 -+#define SZ_ERROR_UNSUPPORTED 4 -+#define SZ_ERROR_PARAM 5 -+#define SZ_ERROR_INPUT_EOF 6 -+#define SZ_ERROR_OUTPUT_EOF 7 -+#define SZ_ERROR_READ 8 -+#define SZ_ERROR_WRITE 9 -+#define SZ_ERROR_PROGRESS 10 -+#define SZ_ERROR_FAIL 11 -+#define SZ_ERROR_THREAD 12 -+ -+#define SZ_ERROR_ARCHIVE 16 -+#define SZ_ERROR_NO_ARCHIVE 17 -+ -+typedef int SRes; -+ -+#ifdef _WIN32 -+typedef DWORD WRes; -+#else -+typedef int WRes; -+#endif -+ -+#ifndef RINOK -+#define RINOK(x) { int __result__ = (x); if (__result__ != 0) return __result__; } -+#endif -+ -+typedef unsigned char Byte; -+typedef short Int16; -+typedef unsigned short UInt16; -+ -+#ifdef _LZMA_UINT32_IS_ULONG -+typedef long Int32; -+typedef unsigned long UInt32; -+#else -+typedef int Int32; -+typedef unsigned int UInt32; -+#endif -+ -+#ifdef _SZ_NO_INT_64 -+ -+/* define _SZ_NO_INT_64, if your compiler doesn't support 64-bit integers. -+ NOTES: Some code will work incorrectly in that case! */ -+ -+typedef long Int64; -+typedef unsigned long UInt64; -+ -+#else -+ -+#if defined(_MSC_VER) || defined(__BORLANDC__) -+typedef __int64 Int64; -+typedef unsigned __int64 UInt64; -+#else -+typedef long long int Int64; -+typedef unsigned long long int UInt64; -+#endif -+ -+#endif -+ -+#ifdef _LZMA_NO_SYSTEM_SIZE_T -+typedef UInt32 SizeT; -+#else -+typedef size_t SizeT; -+#endif -+ -+typedef int Bool; -+#define True 1 -+#define False 0 -+ -+ -+#ifdef _WIN32 -+#define MY_STD_CALL __stdcall -+#else -+#define MY_STD_CALL -+#endif -+ -+#ifdef _MSC_VER -+ -+#if _MSC_VER >= 1300 -+#define MY_NO_INLINE __declspec(noinline) -+#else -+#define MY_NO_INLINE -+#endif -+ -+#define MY_CDECL __cdecl -+#define MY_FAST_CALL __fastcall -+ -+#else -+ -+#define MY_CDECL -+#define MY_FAST_CALL -+ -+#endif -+ -+ -+/* The following interfaces use first parameter as pointer to structure */ -+ -+typedef struct -+{ -+ SRes (*Read)(void *p, void *buf, size_t *size); -+ /* if (input(*size) != 0 && output(*size) == 0) means end_of_stream. -+ (output(*size) < input(*size)) is allowed */ -+} ISeqInStream; -+ -+/* it can return SZ_ERROR_INPUT_EOF */ -+SRes SeqInStream_Read(ISeqInStream *stream, void *buf, size_t size); -+SRes SeqInStream_Read2(ISeqInStream *stream, void *buf, size_t size, SRes errorType); -+SRes SeqInStream_ReadByte(ISeqInStream *stream, Byte *buf); -+ -+typedef struct -+{ -+ size_t (*Write)(void *p, const void *buf, size_t size); -+ /* Returns: result - the number of actually written bytes. -+ (result < size) means error */ -+} ISeqOutStream; -+ -+typedef enum -+{ -+ SZ_SEEK_SET = 0, -+ SZ_SEEK_CUR = 1, -+ SZ_SEEK_END = 2 -+} ESzSeek; -+ -+typedef struct -+{ -+ SRes (*Read)(void *p, void *buf, size_t *size); /* same as ISeqInStream::Read */ -+ SRes (*Seek)(void *p, Int64 *pos, ESzSeek origin); -+} ISeekInStream; -+ -+typedef struct -+{ -+ SRes (*Look)(void *p, void **buf, size_t *size); -+ /* if (input(*size) != 0 && output(*size) == 0) means end_of_stream. -+ (output(*size) > input(*size)) is not allowed -+ (output(*size) < input(*size)) is allowed */ -+ SRes (*Skip)(void *p, size_t offset); -+ /* offset must be <= output(*size) of Look */ -+ -+ SRes (*Read)(void *p, void *buf, size_t *size); -+ /* reads directly (without buffer). It's same as ISeqInStream::Read */ -+ SRes (*Seek)(void *p, Int64 *pos, ESzSeek origin); -+} ILookInStream; -+ -+SRes LookInStream_LookRead(ILookInStream *stream, void *buf, size_t *size); -+SRes LookInStream_SeekTo(ILookInStream *stream, UInt64 offset); -+ -+/* reads via ILookInStream::Read */ -+SRes LookInStream_Read2(ILookInStream *stream, void *buf, size_t size, SRes errorType); -+SRes LookInStream_Read(ILookInStream *stream, void *buf, size_t size); -+ -+#define LookToRead_BUF_SIZE (1 << 14) -+ -+typedef struct -+{ -+ ILookInStream s; -+ ISeekInStream *realStream; -+ size_t pos; -+ size_t size; -+ Byte buf[LookToRead_BUF_SIZE]; -+} CLookToRead; -+ -+void LookToRead_CreateVTable(CLookToRead *p, int lookahead); -+void LookToRead_Init(CLookToRead *p); -+ -+typedef struct -+{ -+ ISeqInStream s; -+ ILookInStream *realStream; -+} CSecToLook; -+ -+void SecToLook_CreateVTable(CSecToLook *p); -+ -+typedef struct -+{ -+ ISeqInStream s; -+ ILookInStream *realStream; -+} CSecToRead; -+ -+void SecToRead_CreateVTable(CSecToRead *p); -+ -+typedef struct -+{ -+ SRes (*Progress)(void *p, UInt64 inSize, UInt64 outSize); -+ /* Returns: result. (result != SZ_OK) means break. -+ Value (UInt64)(Int64)-1 for size means unknown value. */ -+} ICompressProgress; -+ -+typedef struct -+{ -+ void *(*Alloc)(void *p, size_t size); -+ void (*Free)(void *p, void *address); /* address can be 0 */ -+} ISzAlloc; -+ -+#define IAlloc_Alloc(p, size) (p)->Alloc((p), size) -+#define IAlloc_Free(p, a) (p)->Free((p), a) -+ -+EXTERN_C_END -+ -+#endif ---- a/lib/Kconfig -+++ b/lib/Kconfig -@@ -111,6 +111,12 @@ config LZO_DECOMPRESS - - source "lib/xz/Kconfig" - -+config LZMA_COMPRESS -+ tristate -+ -+config LZMA_DECOMPRESS -+ tristate -+ - # - # These all provide a common interface (hence the apparent duplication with - # ZLIB_INFLATE; DECOMPRESS_GZIP is just a wrapper.) ---- a/lib/Makefile -+++ b/lib/Makefile -@@ -2,6 +2,16 @@ - # Makefile for some libs needed in the kernel. - # - -+ifdef CONFIG_JFFS2_ZLIB -+ CONFIG_ZLIB_INFLATE:=y -+ CONFIG_ZLIB_DEFLATE:=y -+endif -+ -+ifdef CONFIG_JFFS2_LZMA -+ CONFIG_LZMA_DECOMPRESS:=y -+ CONFIG_LZMA_COMPRESS:=y -+endif -+ - ifdef CONFIG_FUNCTION_TRACER - ORIG_CFLAGS := $(KBUILD_CFLAGS) - KBUILD_CFLAGS = $(subst -pg,,$(ORIG_CFLAGS)) -@@ -74,6 +84,8 @@ obj-$(CONFIG_LZO_COMPRESS) += lzo/ - obj-$(CONFIG_LZO_DECOMPRESS) += lzo/ - obj-$(CONFIG_XZ_DEC) += xz/ - obj-$(CONFIG_RAID6_PQ) += raid6/ -+obj-$(CONFIG_LZMA_COMPRESS) += lzma/ -+obj-$(CONFIG_LZMA_DECOMPRESS) += lzma/ - - lib-$(CONFIG_DECOMPRESS_GZIP) += decompress_inflate.o - lib-$(CONFIG_DECOMPRESS_BZIP2) += decompress_bunzip2.o ---- /dev/null -+++ b/lib/lzma/LzFind.c -@@ -0,0 +1,761 @@ -+/* LzFind.c -- Match finder for LZ algorithms -+2009-04-22 : Igor Pavlov : Public domain */ -+ -+#include -+ -+#include "LzFind.h" -+#include "LzHash.h" -+ -+#define kEmptyHashValue 0 -+#define kMaxValForNormalize ((UInt32)0xFFFFFFFF) -+#define kNormalizeStepMin (1 << 10) /* it must be power of 2 */ -+#define kNormalizeMask (~(kNormalizeStepMin - 1)) -+#define kMaxHistorySize ((UInt32)3 << 30) -+ -+#define kStartMaxLen 3 -+ -+static void LzInWindow_Free(CMatchFinder *p, ISzAlloc *alloc) -+{ -+ if (!p->directInput) -+ { -+ alloc->Free(alloc, p->bufferBase); -+ p->bufferBase = 0; -+ } -+} -+ -+/* keepSizeBefore + keepSizeAfter + keepSizeReserv must be < 4G) */ -+ -+static int LzInWindow_Create(CMatchFinder *p, UInt32 keepSizeReserv, ISzAlloc *alloc) -+{ -+ UInt32 blockSize = p->keepSizeBefore + p->keepSizeAfter + keepSizeReserv; -+ if (p->directInput) -+ { -+ p->blockSize = blockSize; -+ return 1; -+ } -+ if (p->bufferBase == 0 || p->blockSize != blockSize) -+ { -+ LzInWindow_Free(p, alloc); -+ p->blockSize = blockSize; -+ p->bufferBase = (Byte *)alloc->Alloc(alloc, (size_t)blockSize); -+ } -+ return (p->bufferBase != 0); -+} -+ -+Byte *MatchFinder_GetPointerToCurrentPos(CMatchFinder *p) { return p->buffer; } -+Byte MatchFinder_GetIndexByte(CMatchFinder *p, Int32 index) { return p->buffer[index]; } -+ -+UInt32 MatchFinder_GetNumAvailableBytes(CMatchFinder *p) { return p->streamPos - p->pos; } -+ -+void MatchFinder_ReduceOffsets(CMatchFinder *p, UInt32 subValue) -+{ -+ p->posLimit -= subValue; -+ p->pos -= subValue; -+ p->streamPos -= subValue; -+} -+ -+static void MatchFinder_ReadBlock(CMatchFinder *p) -+{ -+ if (p->streamEndWasReached || p->result != SZ_OK) -+ return; -+ if (p->directInput) -+ { -+ UInt32 curSize = 0xFFFFFFFF - p->streamPos; -+ if (curSize > p->directInputRem) -+ curSize = (UInt32)p->directInputRem; -+ p->directInputRem -= curSize; -+ p->streamPos += curSize; -+ if (p->directInputRem == 0) -+ p->streamEndWasReached = 1; -+ return; -+ } -+ for (;;) -+ { -+ Byte *dest = p->buffer + (p->streamPos - p->pos); -+ size_t size = (p->bufferBase + p->blockSize - dest); -+ if (size == 0) -+ return; -+ p->result = p->stream->Read(p->stream, dest, &size); -+ if (p->result != SZ_OK) -+ return; -+ if (size == 0) -+ { -+ p->streamEndWasReached = 1; -+ return; -+ } -+ p->streamPos += (UInt32)size; -+ if (p->streamPos - p->pos > p->keepSizeAfter) -+ return; -+ } -+} -+ -+void MatchFinder_MoveBlock(CMatchFinder *p) -+{ -+ memmove(p->bufferBase, -+ p->buffer - p->keepSizeBefore, -+ (size_t)(p->streamPos - p->pos + p->keepSizeBefore)); -+ p->buffer = p->bufferBase + p->keepSizeBefore; -+} -+ -+int MatchFinder_NeedMove(CMatchFinder *p) -+{ -+ if (p->directInput) -+ return 0; -+ /* if (p->streamEndWasReached) return 0; */ -+ return ((size_t)(p->bufferBase + p->blockSize - p->buffer) <= p->keepSizeAfter); -+} -+ -+void MatchFinder_ReadIfRequired(CMatchFinder *p) -+{ -+ if (p->streamEndWasReached) -+ return; -+ if (p->keepSizeAfter >= p->streamPos - p->pos) -+ MatchFinder_ReadBlock(p); -+} -+ -+static void MatchFinder_CheckAndMoveAndRead(CMatchFinder *p) -+{ -+ if (MatchFinder_NeedMove(p)) -+ MatchFinder_MoveBlock(p); -+ MatchFinder_ReadBlock(p); -+} -+ -+static void MatchFinder_SetDefaultSettings(CMatchFinder *p) -+{ -+ p->cutValue = 32; -+ p->btMode = 1; -+ p->numHashBytes = 4; -+ p->bigHash = 0; -+} -+ -+#define kCrcPoly 0xEDB88320 -+ -+void MatchFinder_Construct(CMatchFinder *p) -+{ -+ UInt32 i; -+ p->bufferBase = 0; -+ p->directInput = 0; -+ p->hash = 0; -+ MatchFinder_SetDefaultSettings(p); -+ -+ for (i = 0; i < 256; i++) -+ { -+ UInt32 r = i; -+ int j; -+ for (j = 0; j < 8; j++) -+ r = (r >> 1) ^ (kCrcPoly & ~((r & 1) - 1)); -+ p->crc[i] = r; -+ } -+} -+ -+static void MatchFinder_FreeThisClassMemory(CMatchFinder *p, ISzAlloc *alloc) -+{ -+ alloc->Free(alloc, p->hash); -+ p->hash = 0; -+} -+ -+void MatchFinder_Free(CMatchFinder *p, ISzAlloc *alloc) -+{ -+ MatchFinder_FreeThisClassMemory(p, alloc); -+ LzInWindow_Free(p, alloc); -+} -+ -+static CLzRef* AllocRefs(UInt32 num, ISzAlloc *alloc) -+{ -+ size_t sizeInBytes = (size_t)num * sizeof(CLzRef); -+ if (sizeInBytes / sizeof(CLzRef) != num) -+ return 0; -+ return (CLzRef *)alloc->Alloc(alloc, sizeInBytes); -+} -+ -+int MatchFinder_Create(CMatchFinder *p, UInt32 historySize, -+ UInt32 keepAddBufferBefore, UInt32 matchMaxLen, UInt32 keepAddBufferAfter, -+ ISzAlloc *alloc) -+{ -+ UInt32 sizeReserv; -+ if (historySize > kMaxHistorySize) -+ { -+ MatchFinder_Free(p, alloc); -+ return 0; -+ } -+ sizeReserv = historySize >> 1; -+ if (historySize > ((UInt32)2 << 30)) -+ sizeReserv = historySize >> 2; -+ sizeReserv += (keepAddBufferBefore + matchMaxLen + keepAddBufferAfter) / 2 + (1 << 19); -+ -+ p->keepSizeBefore = historySize + keepAddBufferBefore + 1; -+ p->keepSizeAfter = matchMaxLen + keepAddBufferAfter; -+ /* we need one additional byte, since we use MoveBlock after pos++ and before dictionary using */ -+ if (LzInWindow_Create(p, sizeReserv, alloc)) -+ { -+ UInt32 newCyclicBufferSize = historySize + 1; -+ UInt32 hs; -+ p->matchMaxLen = matchMaxLen; -+ { -+ p->fixedHashSize = 0; -+ if (p->numHashBytes == 2) -+ hs = (1 << 16) - 1; -+ else -+ { -+ hs = historySize - 1; -+ hs |= (hs >> 1); -+ hs |= (hs >> 2); -+ hs |= (hs >> 4); -+ hs |= (hs >> 8); -+ hs >>= 1; -+ hs |= 0xFFFF; /* don't change it! It's required for Deflate */ -+ if (hs > (1 << 24)) -+ { -+ if (p->numHashBytes == 3) -+ hs = (1 << 24) - 1; -+ else -+ hs >>= 1; -+ } -+ } -+ p->hashMask = hs; -+ hs++; -+ if (p->numHashBytes > 2) p->fixedHashSize += kHash2Size; -+ if (p->numHashBytes > 3) p->fixedHashSize += kHash3Size; -+ if (p->numHashBytes > 4) p->fixedHashSize += kHash4Size; -+ hs += p->fixedHashSize; -+ } -+ -+ { -+ UInt32 prevSize = p->hashSizeSum + p->numSons; -+ UInt32 newSize; -+ p->historySize = historySize; -+ p->hashSizeSum = hs; -+ p->cyclicBufferSize = newCyclicBufferSize; -+ p->numSons = (p->btMode ? newCyclicBufferSize * 2 : newCyclicBufferSize); -+ newSize = p->hashSizeSum + p->numSons; -+ if (p->hash != 0 && prevSize == newSize) -+ return 1; -+ MatchFinder_FreeThisClassMemory(p, alloc); -+ p->hash = AllocRefs(newSize, alloc); -+ if (p->hash != 0) -+ { -+ p->son = p->hash + p->hashSizeSum; -+ return 1; -+ } -+ } -+ } -+ MatchFinder_Free(p, alloc); -+ return 0; -+} -+ -+static void MatchFinder_SetLimits(CMatchFinder *p) -+{ -+ UInt32 limit = kMaxValForNormalize - p->pos; -+ UInt32 limit2 = p->cyclicBufferSize - p->cyclicBufferPos; -+ if (limit2 < limit) -+ limit = limit2; -+ limit2 = p->streamPos - p->pos; -+ if (limit2 <= p->keepSizeAfter) -+ { -+ if (limit2 > 0) -+ limit2 = 1; -+ } -+ else -+ limit2 -= p->keepSizeAfter; -+ if (limit2 < limit) -+ limit = limit2; -+ { -+ UInt32 lenLimit = p->streamPos - p->pos; -+ if (lenLimit > p->matchMaxLen) -+ lenLimit = p->matchMaxLen; -+ p->lenLimit = lenLimit; -+ } -+ p->posLimit = p->pos + limit; -+} -+ -+void MatchFinder_Init(CMatchFinder *p) -+{ -+ UInt32 i; -+ for (i = 0; i < p->hashSizeSum; i++) -+ p->hash[i] = kEmptyHashValue; -+ p->cyclicBufferPos = 0; -+ p->buffer = p->bufferBase; -+ p->pos = p->streamPos = p->cyclicBufferSize; -+ p->result = SZ_OK; -+ p->streamEndWasReached = 0; -+ MatchFinder_ReadBlock(p); -+ MatchFinder_SetLimits(p); -+} -+ -+static UInt32 MatchFinder_GetSubValue(CMatchFinder *p) -+{ -+ return (p->pos - p->historySize - 1) & kNormalizeMask; -+} -+ -+void MatchFinder_Normalize3(UInt32 subValue, CLzRef *items, UInt32 numItems) -+{ -+ UInt32 i; -+ for (i = 0; i < numItems; i++) -+ { -+ UInt32 value = items[i]; -+ if (value <= subValue) -+ value = kEmptyHashValue; -+ else -+ value -= subValue; -+ items[i] = value; -+ } -+} -+ -+static void MatchFinder_Normalize(CMatchFinder *p) -+{ -+ UInt32 subValue = MatchFinder_GetSubValue(p); -+ MatchFinder_Normalize3(subValue, p->hash, p->hashSizeSum + p->numSons); -+ MatchFinder_ReduceOffsets(p, subValue); -+} -+ -+static void MatchFinder_CheckLimits(CMatchFinder *p) -+{ -+ if (p->pos == kMaxValForNormalize) -+ MatchFinder_Normalize(p); -+ if (!p->streamEndWasReached && p->keepSizeAfter == p->streamPos - p->pos) -+ MatchFinder_CheckAndMoveAndRead(p); -+ if (p->cyclicBufferPos == p->cyclicBufferSize) -+ p->cyclicBufferPos = 0; -+ MatchFinder_SetLimits(p); -+} -+ -+static UInt32 * Hc_GetMatchesSpec(UInt32 lenLimit, UInt32 curMatch, UInt32 pos, const Byte *cur, CLzRef *son, -+ UInt32 _cyclicBufferPos, UInt32 _cyclicBufferSize, UInt32 cutValue, -+ UInt32 *distances, UInt32 maxLen) -+{ -+ son[_cyclicBufferPos] = curMatch; -+ for (;;) -+ { -+ UInt32 delta = pos - curMatch; -+ if (cutValue-- == 0 || delta >= _cyclicBufferSize) -+ return distances; -+ { -+ const Byte *pb = cur - delta; -+ curMatch = son[_cyclicBufferPos - delta + ((delta > _cyclicBufferPos) ? _cyclicBufferSize : 0)]; -+ if (pb[maxLen] == cur[maxLen] && *pb == *cur) -+ { -+ UInt32 len = 0; -+ while (++len != lenLimit) -+ if (pb[len] != cur[len]) -+ break; -+ if (maxLen < len) -+ { -+ *distances++ = maxLen = len; -+ *distances++ = delta - 1; -+ if (len == lenLimit) -+ return distances; -+ } -+ } -+ } -+ } -+} -+ -+UInt32 * GetMatchesSpec1(UInt32 lenLimit, UInt32 curMatch, UInt32 pos, const Byte *cur, CLzRef *son, -+ UInt32 _cyclicBufferPos, UInt32 _cyclicBufferSize, UInt32 cutValue, -+ UInt32 *distances, UInt32 maxLen) -+{ -+ CLzRef *ptr0 = son + (_cyclicBufferPos << 1) + 1; -+ CLzRef *ptr1 = son + (_cyclicBufferPos << 1); -+ UInt32 len0 = 0, len1 = 0; -+ for (;;) -+ { -+ UInt32 delta = pos - curMatch; -+ if (cutValue-- == 0 || delta >= _cyclicBufferSize) -+ { -+ *ptr0 = *ptr1 = kEmptyHashValue; -+ return distances; -+ } -+ { -+ CLzRef *pair = son + ((_cyclicBufferPos - delta + ((delta > _cyclicBufferPos) ? _cyclicBufferSize : 0)) << 1); -+ const Byte *pb = cur - delta; -+ UInt32 len = (len0 < len1 ? len0 : len1); -+ if (pb[len] == cur[len]) -+ { -+ if (++len != lenLimit && pb[len] == cur[len]) -+ while (++len != lenLimit) -+ if (pb[len] != cur[len]) -+ break; -+ if (maxLen < len) -+ { -+ *distances++ = maxLen = len; -+ *distances++ = delta - 1; -+ if (len == lenLimit) -+ { -+ *ptr1 = pair[0]; -+ *ptr0 = pair[1]; -+ return distances; -+ } -+ } -+ } -+ if (pb[len] < cur[len]) -+ { -+ *ptr1 = curMatch; -+ ptr1 = pair + 1; -+ curMatch = *ptr1; -+ len1 = len; -+ } -+ else -+ { -+ *ptr0 = curMatch; -+ ptr0 = pair; -+ curMatch = *ptr0; -+ len0 = len; -+ } -+ } -+ } -+} -+ -+static void SkipMatchesSpec(UInt32 lenLimit, UInt32 curMatch, UInt32 pos, const Byte *cur, CLzRef *son, -+ UInt32 _cyclicBufferPos, UInt32 _cyclicBufferSize, UInt32 cutValue) -+{ -+ CLzRef *ptr0 = son + (_cyclicBufferPos << 1) + 1; -+ CLzRef *ptr1 = son + (_cyclicBufferPos << 1); -+ UInt32 len0 = 0, len1 = 0; -+ for (;;) -+ { -+ UInt32 delta = pos - curMatch; -+ if (cutValue-- == 0 || delta >= _cyclicBufferSize) -+ { -+ *ptr0 = *ptr1 = kEmptyHashValue; -+ return; -+ } -+ { -+ CLzRef *pair = son + ((_cyclicBufferPos - delta + ((delta > _cyclicBufferPos) ? _cyclicBufferSize : 0)) << 1); -+ const Byte *pb = cur - delta; -+ UInt32 len = (len0 < len1 ? len0 : len1); -+ if (pb[len] == cur[len]) -+ { -+ while (++len != lenLimit) -+ if (pb[len] != cur[len]) -+ break; -+ { -+ if (len == lenLimit) -+ { -+ *ptr1 = pair[0]; -+ *ptr0 = pair[1]; -+ return; -+ } -+ } -+ } -+ if (pb[len] < cur[len]) -+ { -+ *ptr1 = curMatch; -+ ptr1 = pair + 1; -+ curMatch = *ptr1; -+ len1 = len; -+ } -+ else -+ { -+ *ptr0 = curMatch; -+ ptr0 = pair; -+ curMatch = *ptr0; -+ len0 = len; -+ } -+ } -+ } -+} -+ -+#define MOVE_POS \ -+ ++p->cyclicBufferPos; \ -+ p->buffer++; \ -+ if (++p->pos == p->posLimit) MatchFinder_CheckLimits(p); -+ -+#define MOVE_POS_RET MOVE_POS return offset; -+ -+static void MatchFinder_MovePos(CMatchFinder *p) { MOVE_POS; } -+ -+#define GET_MATCHES_HEADER2(minLen, ret_op) \ -+ UInt32 lenLimit; UInt32 hashValue; const Byte *cur; UInt32 curMatch; \ -+ lenLimit = p->lenLimit; { if (lenLimit < minLen) { MatchFinder_MovePos(p); ret_op; }} \ -+ cur = p->buffer; -+ -+#define GET_MATCHES_HEADER(minLen) GET_MATCHES_HEADER2(minLen, return 0) -+#define SKIP_HEADER(minLen) GET_MATCHES_HEADER2(minLen, continue) -+ -+#define MF_PARAMS(p) p->pos, p->buffer, p->son, p->cyclicBufferPos, p->cyclicBufferSize, p->cutValue -+ -+#define GET_MATCHES_FOOTER(offset, maxLen) \ -+ offset = (UInt32)(GetMatchesSpec1(lenLimit, curMatch, MF_PARAMS(p), \ -+ distances + offset, maxLen) - distances); MOVE_POS_RET; -+ -+#define SKIP_FOOTER \ -+ SkipMatchesSpec(lenLimit, curMatch, MF_PARAMS(p)); MOVE_POS; -+ -+static UInt32 Bt2_MatchFinder_GetMatches(CMatchFinder *p, UInt32 *distances) -+{ -+ UInt32 offset; -+ GET_MATCHES_HEADER(2) -+ HASH2_CALC; -+ curMatch = p->hash[hashValue]; -+ p->hash[hashValue] = p->pos; -+ offset = 0; -+ GET_MATCHES_FOOTER(offset, 1) -+} -+ -+UInt32 Bt3Zip_MatchFinder_GetMatches(CMatchFinder *p, UInt32 *distances) -+{ -+ UInt32 offset; -+ GET_MATCHES_HEADER(3) -+ HASH_ZIP_CALC; -+ curMatch = p->hash[hashValue]; -+ p->hash[hashValue] = p->pos; -+ offset = 0; -+ GET_MATCHES_FOOTER(offset, 2) -+} -+ -+static UInt32 Bt3_MatchFinder_GetMatches(CMatchFinder *p, UInt32 *distances) -+{ -+ UInt32 hash2Value, delta2, maxLen, offset; -+ GET_MATCHES_HEADER(3) -+ -+ HASH3_CALC; -+ -+ delta2 = p->pos - p->hash[hash2Value]; -+ curMatch = p->hash[kFix3HashSize + hashValue]; -+ -+ p->hash[hash2Value] = -+ p->hash[kFix3HashSize + hashValue] = p->pos; -+ -+ -+ maxLen = 2; -+ offset = 0; -+ if (delta2 < p->cyclicBufferSize && *(cur - delta2) == *cur) -+ { -+ for (; maxLen != lenLimit; maxLen++) -+ if (cur[(ptrdiff_t)maxLen - delta2] != cur[maxLen]) -+ break; -+ distances[0] = maxLen; -+ distances[1] = delta2 - 1; -+ offset = 2; -+ if (maxLen == lenLimit) -+ { -+ SkipMatchesSpec(lenLimit, curMatch, MF_PARAMS(p)); -+ MOVE_POS_RET; -+ } -+ } -+ GET_MATCHES_FOOTER(offset, maxLen) -+} -+ -+static UInt32 Bt4_MatchFinder_GetMatches(CMatchFinder *p, UInt32 *distances) -+{ -+ UInt32 hash2Value, hash3Value, delta2, delta3, maxLen, offset; -+ GET_MATCHES_HEADER(4) -+ -+ HASH4_CALC; -+ -+ delta2 = p->pos - p->hash[ hash2Value]; -+ delta3 = p->pos - p->hash[kFix3HashSize + hash3Value]; -+ curMatch = p->hash[kFix4HashSize + hashValue]; -+ -+ p->hash[ hash2Value] = -+ p->hash[kFix3HashSize + hash3Value] = -+ p->hash[kFix4HashSize + hashValue] = p->pos; -+ -+ maxLen = 1; -+ offset = 0; -+ if (delta2 < p->cyclicBufferSize && *(cur - delta2) == *cur) -+ { -+ distances[0] = maxLen = 2; -+ distances[1] = delta2 - 1; -+ offset = 2; -+ } -+ if (delta2 != delta3 && delta3 < p->cyclicBufferSize && *(cur - delta3) == *cur) -+ { -+ maxLen = 3; -+ distances[offset + 1] = delta3 - 1; -+ offset += 2; -+ delta2 = delta3; -+ } -+ if (offset != 0) -+ { -+ for (; maxLen != lenLimit; maxLen++) -+ if (cur[(ptrdiff_t)maxLen - delta2] != cur[maxLen]) -+ break; -+ distances[offset - 2] = maxLen; -+ if (maxLen == lenLimit) -+ { -+ SkipMatchesSpec(lenLimit, curMatch, MF_PARAMS(p)); -+ MOVE_POS_RET; -+ } -+ } -+ if (maxLen < 3) -+ maxLen = 3; -+ GET_MATCHES_FOOTER(offset, maxLen) -+} -+ -+static UInt32 Hc4_MatchFinder_GetMatches(CMatchFinder *p, UInt32 *distances) -+{ -+ UInt32 hash2Value, hash3Value, delta2, delta3, maxLen, offset; -+ GET_MATCHES_HEADER(4) -+ -+ HASH4_CALC; -+ -+ delta2 = p->pos - p->hash[ hash2Value]; -+ delta3 = p->pos - p->hash[kFix3HashSize + hash3Value]; -+ curMatch = p->hash[kFix4HashSize + hashValue]; -+ -+ p->hash[ hash2Value] = -+ p->hash[kFix3HashSize + hash3Value] = -+ p->hash[kFix4HashSize + hashValue] = p->pos; -+ -+ maxLen = 1; -+ offset = 0; -+ if (delta2 < p->cyclicBufferSize && *(cur - delta2) == *cur) -+ { -+ distances[0] = maxLen = 2; -+ distances[1] = delta2 - 1; -+ offset = 2; -+ } -+ if (delta2 != delta3 && delta3 < p->cyclicBufferSize && *(cur - delta3) == *cur) -+ { -+ maxLen = 3; -+ distances[offset + 1] = delta3 - 1; -+ offset += 2; -+ delta2 = delta3; -+ } -+ if (offset != 0) -+ { -+ for (; maxLen != lenLimit; maxLen++) -+ if (cur[(ptrdiff_t)maxLen - delta2] != cur[maxLen]) -+ break; -+ distances[offset - 2] = maxLen; -+ if (maxLen == lenLimit) -+ { -+ p->son[p->cyclicBufferPos] = curMatch; -+ MOVE_POS_RET; -+ } -+ } -+ if (maxLen < 3) -+ maxLen = 3; -+ offset = (UInt32)(Hc_GetMatchesSpec(lenLimit, curMatch, MF_PARAMS(p), -+ distances + offset, maxLen) - (distances)); -+ MOVE_POS_RET -+} -+ -+UInt32 Hc3Zip_MatchFinder_GetMatches(CMatchFinder *p, UInt32 *distances) -+{ -+ UInt32 offset; -+ GET_MATCHES_HEADER(3) -+ HASH_ZIP_CALC; -+ curMatch = p->hash[hashValue]; -+ p->hash[hashValue] = p->pos; -+ offset = (UInt32)(Hc_GetMatchesSpec(lenLimit, curMatch, MF_PARAMS(p), -+ distances, 2) - (distances)); -+ MOVE_POS_RET -+} -+ -+static void Bt2_MatchFinder_Skip(CMatchFinder *p, UInt32 num) -+{ -+ do -+ { -+ SKIP_HEADER(2) -+ HASH2_CALC; -+ curMatch = p->hash[hashValue]; -+ p->hash[hashValue] = p->pos; -+ SKIP_FOOTER -+ } -+ while (--num != 0); -+} -+ -+void Bt3Zip_MatchFinder_Skip(CMatchFinder *p, UInt32 num) -+{ -+ do -+ { -+ SKIP_HEADER(3) -+ HASH_ZIP_CALC; -+ curMatch = p->hash[hashValue]; -+ p->hash[hashValue] = p->pos; -+ SKIP_FOOTER -+ } -+ while (--num != 0); -+} -+ -+static void Bt3_MatchFinder_Skip(CMatchFinder *p, UInt32 num) -+{ -+ do -+ { -+ UInt32 hash2Value; -+ SKIP_HEADER(3) -+ HASH3_CALC; -+ curMatch = p->hash[kFix3HashSize + hashValue]; -+ p->hash[hash2Value] = -+ p->hash[kFix3HashSize + hashValue] = p->pos; -+ SKIP_FOOTER -+ } -+ while (--num != 0); -+} -+ -+static void Bt4_MatchFinder_Skip(CMatchFinder *p, UInt32 num) -+{ -+ do -+ { -+ UInt32 hash2Value, hash3Value; -+ SKIP_HEADER(4) -+ HASH4_CALC; -+ curMatch = p->hash[kFix4HashSize + hashValue]; -+ p->hash[ hash2Value] = -+ p->hash[kFix3HashSize + hash3Value] = p->pos; -+ p->hash[kFix4HashSize + hashValue] = p->pos; -+ SKIP_FOOTER -+ } -+ while (--num != 0); -+} -+ -+static void Hc4_MatchFinder_Skip(CMatchFinder *p, UInt32 num) -+{ -+ do -+ { -+ UInt32 hash2Value, hash3Value; -+ SKIP_HEADER(4) -+ HASH4_CALC; -+ curMatch = p->hash[kFix4HashSize + hashValue]; -+ p->hash[ hash2Value] = -+ p->hash[kFix3HashSize + hash3Value] = -+ p->hash[kFix4HashSize + hashValue] = p->pos; -+ p->son[p->cyclicBufferPos] = curMatch; -+ MOVE_POS -+ } -+ while (--num != 0); -+} -+ -+void Hc3Zip_MatchFinder_Skip(CMatchFinder *p, UInt32 num) -+{ -+ do -+ { -+ SKIP_HEADER(3) -+ HASH_ZIP_CALC; -+ curMatch = p->hash[hashValue]; -+ p->hash[hashValue] = p->pos; -+ p->son[p->cyclicBufferPos] = curMatch; -+ MOVE_POS -+ } -+ while (--num != 0); -+} -+ -+void MatchFinder_CreateVTable(CMatchFinder *p, IMatchFinder *vTable) -+{ -+ vTable->Init = (Mf_Init_Func)MatchFinder_Init; -+ vTable->GetIndexByte = (Mf_GetIndexByte_Func)MatchFinder_GetIndexByte; -+ vTable->GetNumAvailableBytes = (Mf_GetNumAvailableBytes_Func)MatchFinder_GetNumAvailableBytes; -+ vTable->GetPointerToCurrentPos = (Mf_GetPointerToCurrentPos_Func)MatchFinder_GetPointerToCurrentPos; -+ if (!p->btMode) -+ { -+ vTable->GetMatches = (Mf_GetMatches_Func)Hc4_MatchFinder_GetMatches; -+ vTable->Skip = (Mf_Skip_Func)Hc4_MatchFinder_Skip; -+ } -+ else if (p->numHashBytes == 2) -+ { -+ vTable->GetMatches = (Mf_GetMatches_Func)Bt2_MatchFinder_GetMatches; -+ vTable->Skip = (Mf_Skip_Func)Bt2_MatchFinder_Skip; -+ } -+ else if (p->numHashBytes == 3) -+ { -+ vTable->GetMatches = (Mf_GetMatches_Func)Bt3_MatchFinder_GetMatches; -+ vTable->Skip = (Mf_Skip_Func)Bt3_MatchFinder_Skip; -+ } -+ else -+ { -+ vTable->GetMatches = (Mf_GetMatches_Func)Bt4_MatchFinder_GetMatches; -+ vTable->Skip = (Mf_Skip_Func)Bt4_MatchFinder_Skip; -+ } -+} ---- /dev/null -+++ b/lib/lzma/LzmaDec.c -@@ -0,0 +1,999 @@ -+/* LzmaDec.c -- LZMA Decoder -+2009-09-20 : Igor Pavlov : Public domain */ -+ -+#include "LzmaDec.h" -+ -+#include -+ -+#define kNumTopBits 24 -+#define kTopValue ((UInt32)1 << kNumTopBits) -+ -+#define kNumBitModelTotalBits 11 -+#define kBitModelTotal (1 << kNumBitModelTotalBits) -+#define kNumMoveBits 5 -+ -+#define RC_INIT_SIZE 5 -+ -+#define NORMALIZE if (range < kTopValue) { range <<= 8; code = (code << 8) | (*buf++); } -+ -+#define IF_BIT_0(p) ttt = *(p); NORMALIZE; bound = (range >> kNumBitModelTotalBits) * ttt; if (code < bound) -+#define UPDATE_0(p) range = bound; *(p) = (CLzmaProb)(ttt + ((kBitModelTotal - ttt) >> kNumMoveBits)); -+#define UPDATE_1(p) range -= bound; code -= bound; *(p) = (CLzmaProb)(ttt - (ttt >> kNumMoveBits)); -+#define GET_BIT2(p, i, A0, A1) IF_BIT_0(p) \ -+ { UPDATE_0(p); i = (i + i); A0; } else \ -+ { UPDATE_1(p); i = (i + i) + 1; A1; } -+#define GET_BIT(p, i) GET_BIT2(p, i, ; , ;) -+ -+#define TREE_GET_BIT(probs, i) { GET_BIT((probs + i), i); } -+#define TREE_DECODE(probs, limit, i) \ -+ { i = 1; do { TREE_GET_BIT(probs, i); } while (i < limit); i -= limit; } -+ -+/* #define _LZMA_SIZE_OPT */ -+ -+#ifdef _LZMA_SIZE_OPT -+#define TREE_6_DECODE(probs, i) TREE_DECODE(probs, (1 << 6), i) -+#else -+#define TREE_6_DECODE(probs, i) \ -+ { i = 1; \ -+ TREE_GET_BIT(probs, i); \ -+ TREE_GET_BIT(probs, i); \ -+ TREE_GET_BIT(probs, i); \ -+ TREE_GET_BIT(probs, i); \ -+ TREE_GET_BIT(probs, i); \ -+ TREE_GET_BIT(probs, i); \ -+ i -= 0x40; } -+#endif -+ -+#define NORMALIZE_CHECK if (range < kTopValue) { if (buf >= bufLimit) return DUMMY_ERROR; range <<= 8; code = (code << 8) | (*buf++); } -+ -+#define IF_BIT_0_CHECK(p) ttt = *(p); NORMALIZE_CHECK; bound = (range >> kNumBitModelTotalBits) * ttt; if (code < bound) -+#define UPDATE_0_CHECK range = bound; -+#define UPDATE_1_CHECK range -= bound; code -= bound; -+#define GET_BIT2_CHECK(p, i, A0, A1) IF_BIT_0_CHECK(p) \ -+ { UPDATE_0_CHECK; i = (i + i); A0; } else \ -+ { UPDATE_1_CHECK; i = (i + i) + 1; A1; } -+#define GET_BIT_CHECK(p, i) GET_BIT2_CHECK(p, i, ; , ;) -+#define TREE_DECODE_CHECK(probs, limit, i) \ -+ { i = 1; do { GET_BIT_CHECK(probs + i, i) } while (i < limit); i -= limit; } -+ -+ -+#define kNumPosBitsMax 4 -+#define kNumPosStatesMax (1 << kNumPosBitsMax) -+ -+#define kLenNumLowBits 3 -+#define kLenNumLowSymbols (1 << kLenNumLowBits) -+#define kLenNumMidBits 3 -+#define kLenNumMidSymbols (1 << kLenNumMidBits) -+#define kLenNumHighBits 8 -+#define kLenNumHighSymbols (1 << kLenNumHighBits) -+ -+#define LenChoice 0 -+#define LenChoice2 (LenChoice + 1) -+#define LenLow (LenChoice2 + 1) -+#define LenMid (LenLow + (kNumPosStatesMax << kLenNumLowBits)) -+#define LenHigh (LenMid + (kNumPosStatesMax << kLenNumMidBits)) -+#define kNumLenProbs (LenHigh + kLenNumHighSymbols) -+ -+ -+#define kNumStates 12 -+#define kNumLitStates 7 -+ -+#define kStartPosModelIndex 4 -+#define kEndPosModelIndex 14 -+#define kNumFullDistances (1 << (kEndPosModelIndex >> 1)) -+ -+#define kNumPosSlotBits 6 -+#define kNumLenToPosStates 4 -+ -+#define kNumAlignBits 4 -+#define kAlignTableSize (1 << kNumAlignBits) -+ -+#define kMatchMinLen 2 -+#define kMatchSpecLenStart (kMatchMinLen + kLenNumLowSymbols + kLenNumMidSymbols + kLenNumHighSymbols) -+ -+#define IsMatch 0 -+#define IsRep (IsMatch + (kNumStates << kNumPosBitsMax)) -+#define IsRepG0 (IsRep + kNumStates) -+#define IsRepG1 (IsRepG0 + kNumStates) -+#define IsRepG2 (IsRepG1 + kNumStates) -+#define IsRep0Long (IsRepG2 + kNumStates) -+#define PosSlot (IsRep0Long + (kNumStates << kNumPosBitsMax)) -+#define SpecPos (PosSlot + (kNumLenToPosStates << kNumPosSlotBits)) -+#define Align (SpecPos + kNumFullDistances - kEndPosModelIndex) -+#define LenCoder (Align + kAlignTableSize) -+#define RepLenCoder (LenCoder + kNumLenProbs) -+#define Literal (RepLenCoder + kNumLenProbs) -+ -+#define LZMA_BASE_SIZE 1846 -+#define LZMA_LIT_SIZE 768 -+ -+#define LzmaProps_GetNumProbs(p) ((UInt32)LZMA_BASE_SIZE + (LZMA_LIT_SIZE << ((p)->lc + (p)->lp))) -+ -+#if Literal != LZMA_BASE_SIZE -+StopCompilingDueBUG -+#endif -+ -+#define LZMA_DIC_MIN (1 << 12) -+ -+/* First LZMA-symbol is always decoded. -+And it decodes new LZMA-symbols while (buf < bufLimit), but "buf" is without last normalization -+Out: -+ Result: -+ SZ_OK - OK -+ SZ_ERROR_DATA - Error -+ p->remainLen: -+ < kMatchSpecLenStart : normal remain -+ = kMatchSpecLenStart : finished -+ = kMatchSpecLenStart + 1 : Flush marker -+ = kMatchSpecLenStart + 2 : State Init Marker -+*/ -+ -+static int MY_FAST_CALL LzmaDec_DecodeReal(CLzmaDec *p, SizeT limit, const Byte *bufLimit) -+{ -+ CLzmaProb *probs = p->probs; -+ -+ unsigned state = p->state; -+ UInt32 rep0 = p->reps[0], rep1 = p->reps[1], rep2 = p->reps[2], rep3 = p->reps[3]; -+ unsigned pbMask = ((unsigned)1 << (p->prop.pb)) - 1; -+ unsigned lpMask = ((unsigned)1 << (p->prop.lp)) - 1; -+ unsigned lc = p->prop.lc; -+ -+ Byte *dic = p->dic; -+ SizeT dicBufSize = p->dicBufSize; -+ SizeT dicPos = p->dicPos; -+ -+ UInt32 processedPos = p->processedPos; -+ UInt32 checkDicSize = p->checkDicSize; -+ unsigned len = 0; -+ -+ const Byte *buf = p->buf; -+ UInt32 range = p->range; -+ UInt32 code = p->code; -+ -+ do -+ { -+ CLzmaProb *prob; -+ UInt32 bound; -+ unsigned ttt; -+ unsigned posState = processedPos & pbMask; -+ -+ prob = probs + IsMatch + (state << kNumPosBitsMax) + posState; -+ IF_BIT_0(prob) -+ { -+ unsigned symbol; -+ UPDATE_0(prob); -+ prob = probs + Literal; -+ if (checkDicSize != 0 || processedPos != 0) -+ prob += (LZMA_LIT_SIZE * (((processedPos & lpMask) << lc) + -+ (dic[(dicPos == 0 ? dicBufSize : dicPos) - 1] >> (8 - lc)))); -+ -+ if (state < kNumLitStates) -+ { -+ state -= (state < 4) ? state : 3; -+ symbol = 1; -+ do { GET_BIT(prob + symbol, symbol) } while (symbol < 0x100); -+ } -+ else -+ { -+ unsigned matchByte = p->dic[(dicPos - rep0) + ((dicPos < rep0) ? dicBufSize : 0)]; -+ unsigned offs = 0x100; -+ state -= (state < 10) ? 3 : 6; -+ symbol = 1; -+ do -+ { -+ unsigned bit; -+ CLzmaProb *probLit; -+ matchByte <<= 1; -+ bit = (matchByte & offs); -+ probLit = prob + offs + bit + symbol; -+ GET_BIT2(probLit, symbol, offs &= ~bit, offs &= bit) -+ } -+ while (symbol < 0x100); -+ } -+ dic[dicPos++] = (Byte)symbol; -+ processedPos++; -+ continue; -+ } -+ else -+ { -+ UPDATE_1(prob); -+ prob = probs + IsRep + state; -+ IF_BIT_0(prob) -+ { -+ UPDATE_0(prob); -+ state += kNumStates; -+ prob = probs + LenCoder; -+ } -+ else -+ { -+ UPDATE_1(prob); -+ if (checkDicSize == 0 && processedPos == 0) -+ return SZ_ERROR_DATA; -+ prob = probs + IsRepG0 + state; -+ IF_BIT_0(prob) -+ { -+ UPDATE_0(prob); -+ prob = probs + IsRep0Long + (state << kNumPosBitsMax) + posState; -+ IF_BIT_0(prob) -+ { -+ UPDATE_0(prob); -+ dic[dicPos] = dic[(dicPos - rep0) + ((dicPos < rep0) ? dicBufSize : 0)]; -+ dicPos++; -+ processedPos++; -+ state = state < kNumLitStates ? 9 : 11; -+ continue; -+ } -+ UPDATE_1(prob); -+ } -+ else -+ { -+ UInt32 distance; -+ UPDATE_1(prob); -+ prob = probs + IsRepG1 + state; -+ IF_BIT_0(prob) -+ { -+ UPDATE_0(prob); -+ distance = rep1; -+ } -+ else -+ { -+ UPDATE_1(prob); -+ prob = probs + IsRepG2 + state; -+ IF_BIT_0(prob) -+ { -+ UPDATE_0(prob); -+ distance = rep2; -+ } -+ else -+ { -+ UPDATE_1(prob); -+ distance = rep3; -+ rep3 = rep2; -+ } -+ rep2 = rep1; -+ } -+ rep1 = rep0; -+ rep0 = distance; -+ } -+ state = state < kNumLitStates ? 8 : 11; -+ prob = probs + RepLenCoder; -+ } -+ { -+ unsigned limit, offset; -+ CLzmaProb *probLen = prob + LenChoice; -+ IF_BIT_0(probLen) -+ { -+ UPDATE_0(probLen); -+ probLen = prob + LenLow + (posState << kLenNumLowBits); -+ offset = 0; -+ limit = (1 << kLenNumLowBits); -+ } -+ else -+ { -+ UPDATE_1(probLen); -+ probLen = prob + LenChoice2; -+ IF_BIT_0(probLen) -+ { -+ UPDATE_0(probLen); -+ probLen = prob + LenMid + (posState << kLenNumMidBits); -+ offset = kLenNumLowSymbols; -+ limit = (1 << kLenNumMidBits); -+ } -+ else -+ { -+ UPDATE_1(probLen); -+ probLen = prob + LenHigh; -+ offset = kLenNumLowSymbols + kLenNumMidSymbols; -+ limit = (1 << kLenNumHighBits); -+ } -+ } -+ TREE_DECODE(probLen, limit, len); -+ len += offset; -+ } -+ -+ if (state >= kNumStates) -+ { -+ UInt32 distance; -+ prob = probs + PosSlot + -+ ((len < kNumLenToPosStates ? len : kNumLenToPosStates - 1) << kNumPosSlotBits); -+ TREE_6_DECODE(prob, distance); -+ if (distance >= kStartPosModelIndex) -+ { -+ unsigned posSlot = (unsigned)distance; -+ int numDirectBits = (int)(((distance >> 1) - 1)); -+ distance = (2 | (distance & 1)); -+ if (posSlot < kEndPosModelIndex) -+ { -+ distance <<= numDirectBits; -+ prob = probs + SpecPos + distance - posSlot - 1; -+ { -+ UInt32 mask = 1; -+ unsigned i = 1; -+ do -+ { -+ GET_BIT2(prob + i, i, ; , distance |= mask); -+ mask <<= 1; -+ } -+ while (--numDirectBits != 0); -+ } -+ } -+ else -+ { -+ numDirectBits -= kNumAlignBits; -+ do -+ { -+ NORMALIZE -+ range >>= 1; -+ -+ { -+ UInt32 t; -+ code -= range; -+ t = (0 - ((UInt32)code >> 31)); /* (UInt32)((Int32)code >> 31) */ -+ distance = (distance << 1) + (t + 1); -+ code += range & t; -+ } -+ /* -+ distance <<= 1; -+ if (code >= range) -+ { -+ code -= range; -+ distance |= 1; -+ } -+ */ -+ } -+ while (--numDirectBits != 0); -+ prob = probs + Align; -+ distance <<= kNumAlignBits; -+ { -+ unsigned i = 1; -+ GET_BIT2(prob + i, i, ; , distance |= 1); -+ GET_BIT2(prob + i, i, ; , distance |= 2); -+ GET_BIT2(prob + i, i, ; , distance |= 4); -+ GET_BIT2(prob + i, i, ; , distance |= 8); -+ } -+ if (distance == (UInt32)0xFFFFFFFF) -+ { -+ len += kMatchSpecLenStart; -+ state -= kNumStates; -+ break; -+ } -+ } -+ } -+ rep3 = rep2; -+ rep2 = rep1; -+ rep1 = rep0; -+ rep0 = distance + 1; -+ if (checkDicSize == 0) -+ { -+ if (distance >= processedPos) -+ return SZ_ERROR_DATA; -+ } -+ else if (distance >= checkDicSize) -+ return SZ_ERROR_DATA; -+ state = (state < kNumStates + kNumLitStates) ? kNumLitStates : kNumLitStates + 3; -+ } -+ -+ len += kMatchMinLen; -+ -+ if (limit == dicPos) -+ return SZ_ERROR_DATA; -+ { -+ SizeT rem = limit - dicPos; -+ unsigned curLen = ((rem < len) ? (unsigned)rem : len); -+ SizeT pos = (dicPos - rep0) + ((dicPos < rep0) ? dicBufSize : 0); -+ -+ processedPos += curLen; -+ -+ len -= curLen; -+ if (pos + curLen <= dicBufSize) -+ { -+ Byte *dest = dic + dicPos; -+ ptrdiff_t src = (ptrdiff_t)pos - (ptrdiff_t)dicPos; -+ const Byte *lim = dest + curLen; -+ dicPos += curLen; -+ do -+ *(dest) = (Byte)*(dest + src); -+ while (++dest != lim); -+ } -+ else -+ { -+ do -+ { -+ dic[dicPos++] = dic[pos]; -+ if (++pos == dicBufSize) -+ pos = 0; -+ } -+ while (--curLen != 0); -+ } -+ } -+ } -+ } -+ while (dicPos < limit && buf < bufLimit); -+ NORMALIZE; -+ p->buf = buf; -+ p->range = range; -+ p->code = code; -+ p->remainLen = len; -+ p->dicPos = dicPos; -+ p->processedPos = processedPos; -+ p->reps[0] = rep0; -+ p->reps[1] = rep1; -+ p->reps[2] = rep2; -+ p->reps[3] = rep3; -+ p->state = state; -+ -+ return SZ_OK; -+} -+ -+static void MY_FAST_CALL LzmaDec_WriteRem(CLzmaDec *p, SizeT limit) -+{ -+ if (p->remainLen != 0 && p->remainLen < kMatchSpecLenStart) -+ { -+ Byte *dic = p->dic; -+ SizeT dicPos = p->dicPos; -+ SizeT dicBufSize = p->dicBufSize; -+ unsigned len = p->remainLen; -+ UInt32 rep0 = p->reps[0]; -+ if (limit - dicPos < len) -+ len = (unsigned)(limit - dicPos); -+ -+ if (p->checkDicSize == 0 && p->prop.dicSize - p->processedPos <= len) -+ p->checkDicSize = p->prop.dicSize; -+ -+ p->processedPos += len; -+ p->remainLen -= len; -+ while (len-- != 0) -+ { -+ dic[dicPos] = dic[(dicPos - rep0) + ((dicPos < rep0) ? dicBufSize : 0)]; -+ dicPos++; -+ } -+ p->dicPos = dicPos; -+ } -+} -+ -+static int MY_FAST_CALL LzmaDec_DecodeReal2(CLzmaDec *p, SizeT limit, const Byte *bufLimit) -+{ -+ do -+ { -+ SizeT limit2 = limit; -+ if (p->checkDicSize == 0) -+ { -+ UInt32 rem = p->prop.dicSize - p->processedPos; -+ if (limit - p->dicPos > rem) -+ limit2 = p->dicPos + rem; -+ } -+ RINOK(LzmaDec_DecodeReal(p, limit2, bufLimit)); -+ if (p->processedPos >= p->prop.dicSize) -+ p->checkDicSize = p->prop.dicSize; -+ LzmaDec_WriteRem(p, limit); -+ } -+ while (p->dicPos < limit && p->buf < bufLimit && p->remainLen < kMatchSpecLenStart); -+ -+ if (p->remainLen > kMatchSpecLenStart) -+ { -+ p->remainLen = kMatchSpecLenStart; -+ } -+ return 0; -+} -+ -+typedef enum -+{ -+ DUMMY_ERROR, /* unexpected end of input stream */ -+ DUMMY_LIT, -+ DUMMY_MATCH, -+ DUMMY_REP -+} ELzmaDummy; -+ -+static ELzmaDummy LzmaDec_TryDummy(const CLzmaDec *p, const Byte *buf, SizeT inSize) -+{ -+ UInt32 range = p->range; -+ UInt32 code = p->code; -+ const Byte *bufLimit = buf + inSize; -+ CLzmaProb *probs = p->probs; -+ unsigned state = p->state; -+ ELzmaDummy res; -+ -+ { -+ CLzmaProb *prob; -+ UInt32 bound; -+ unsigned ttt; -+ unsigned posState = (p->processedPos) & ((1 << p->prop.pb) - 1); -+ -+ prob = probs + IsMatch + (state << kNumPosBitsMax) + posState; -+ IF_BIT_0_CHECK(prob) -+ { -+ UPDATE_0_CHECK -+ -+ /* if (bufLimit - buf >= 7) return DUMMY_LIT; */ -+ -+ prob = probs + Literal; -+ if (p->checkDicSize != 0 || p->processedPos != 0) -+ prob += (LZMA_LIT_SIZE * -+ ((((p->processedPos) & ((1 << (p->prop.lp)) - 1)) << p->prop.lc) + -+ (p->dic[(p->dicPos == 0 ? p->dicBufSize : p->dicPos) - 1] >> (8 - p->prop.lc)))); -+ -+ if (state < kNumLitStates) -+ { -+ unsigned symbol = 1; -+ do { GET_BIT_CHECK(prob + symbol, symbol) } while (symbol < 0x100); -+ } -+ else -+ { -+ unsigned matchByte = p->dic[p->dicPos - p->reps[0] + -+ ((p->dicPos < p->reps[0]) ? p->dicBufSize : 0)]; -+ unsigned offs = 0x100; -+ unsigned symbol = 1; -+ do -+ { -+ unsigned bit; -+ CLzmaProb *probLit; -+ matchByte <<= 1; -+ bit = (matchByte & offs); -+ probLit = prob + offs + bit + symbol; -+ GET_BIT2_CHECK(probLit, symbol, offs &= ~bit, offs &= bit) -+ } -+ while (symbol < 0x100); -+ } -+ res = DUMMY_LIT; -+ } -+ else -+ { -+ unsigned len; -+ UPDATE_1_CHECK; -+ -+ prob = probs + IsRep + state; -+ IF_BIT_0_CHECK(prob) -+ { -+ UPDATE_0_CHECK; -+ state = 0; -+ prob = probs + LenCoder; -+ res = DUMMY_MATCH; -+ } -+ else -+ { -+ UPDATE_1_CHECK; -+ res = DUMMY_REP; -+ prob = probs + IsRepG0 + state; -+ IF_BIT_0_CHECK(prob) -+ { -+ UPDATE_0_CHECK; -+ prob = probs + IsRep0Long + (state << kNumPosBitsMax) + posState; -+ IF_BIT_0_CHECK(prob) -+ { -+ UPDATE_0_CHECK; -+ NORMALIZE_CHECK; -+ return DUMMY_REP; -+ } -+ else -+ { -+ UPDATE_1_CHECK; -+ } -+ } -+ else -+ { -+ UPDATE_1_CHECK; -+ prob = probs + IsRepG1 + state; -+ IF_BIT_0_CHECK(prob) -+ { -+ UPDATE_0_CHECK; -+ } -+ else -+ { -+ UPDATE_1_CHECK; -+ prob = probs + IsRepG2 + state; -+ IF_BIT_0_CHECK(prob) -+ { -+ UPDATE_0_CHECK; -+ } -+ else -+ { -+ UPDATE_1_CHECK; -+ } -+ } -+ } -+ state = kNumStates; -+ prob = probs + RepLenCoder; -+ } -+ { -+ unsigned limit, offset; -+ CLzmaProb *probLen = prob + LenChoice; -+ IF_BIT_0_CHECK(probLen) -+ { -+ UPDATE_0_CHECK; -+ probLen = prob + LenLow + (posState << kLenNumLowBits); -+ offset = 0; -+ limit = 1 << kLenNumLowBits; -+ } -+ else -+ { -+ UPDATE_1_CHECK; -+ probLen = prob + LenChoice2; -+ IF_BIT_0_CHECK(probLen) -+ { -+ UPDATE_0_CHECK; -+ probLen = prob + LenMid + (posState << kLenNumMidBits); -+ offset = kLenNumLowSymbols; -+ limit = 1 << kLenNumMidBits; -+ } -+ else -+ { -+ UPDATE_1_CHECK; -+ probLen = prob + LenHigh; -+ offset = kLenNumLowSymbols + kLenNumMidSymbols; -+ limit = 1 << kLenNumHighBits; -+ } -+ } -+ TREE_DECODE_CHECK(probLen, limit, len); -+ len += offset; -+ } -+ -+ if (state < 4) -+ { -+ unsigned posSlot; -+ prob = probs + PosSlot + -+ ((len < kNumLenToPosStates ? len : kNumLenToPosStates - 1) << -+ kNumPosSlotBits); -+ TREE_DECODE_CHECK(prob, 1 << kNumPosSlotBits, posSlot); -+ if (posSlot >= kStartPosModelIndex) -+ { -+ int numDirectBits = ((posSlot >> 1) - 1); -+ -+ /* if (bufLimit - buf >= 8) return DUMMY_MATCH; */ -+ -+ if (posSlot < kEndPosModelIndex) -+ { -+ prob = probs + SpecPos + ((2 | (posSlot & 1)) << numDirectBits) - posSlot - 1; -+ } -+ else -+ { -+ numDirectBits -= kNumAlignBits; -+ do -+ { -+ NORMALIZE_CHECK -+ range >>= 1; -+ code -= range & (((code - range) >> 31) - 1); -+ /* if (code >= range) code -= range; */ -+ } -+ while (--numDirectBits != 0); -+ prob = probs + Align; -+ numDirectBits = kNumAlignBits; -+ } -+ { -+ unsigned i = 1; -+ do -+ { -+ GET_BIT_CHECK(prob + i, i); -+ } -+ while (--numDirectBits != 0); -+ } -+ } -+ } -+ } -+ } -+ NORMALIZE_CHECK; -+ return res; -+} -+ -+ -+static void LzmaDec_InitRc(CLzmaDec *p, const Byte *data) -+{ -+ p->code = ((UInt32)data[1] << 24) | ((UInt32)data[2] << 16) | ((UInt32)data[3] << 8) | ((UInt32)data[4]); -+ p->range = 0xFFFFFFFF; -+ p->needFlush = 0; -+} -+ -+void LzmaDec_InitDicAndState(CLzmaDec *p, Bool initDic, Bool initState) -+{ -+ p->needFlush = 1; -+ p->remainLen = 0; -+ p->tempBufSize = 0; -+ -+ if (initDic) -+ { -+ p->processedPos = 0; -+ p->checkDicSize = 0; -+ p->needInitState = 1; -+ } -+ if (initState) -+ p->needInitState = 1; -+} -+ -+void LzmaDec_Init(CLzmaDec *p) -+{ -+ p->dicPos = 0; -+ LzmaDec_InitDicAndState(p, True, True); -+} -+ -+static void LzmaDec_InitStateReal(CLzmaDec *p) -+{ -+ UInt32 numProbs = Literal + ((UInt32)LZMA_LIT_SIZE << (p->prop.lc + p->prop.lp)); -+ UInt32 i; -+ CLzmaProb *probs = p->probs; -+ for (i = 0; i < numProbs; i++) -+ probs[i] = kBitModelTotal >> 1; -+ p->reps[0] = p->reps[1] = p->reps[2] = p->reps[3] = 1; -+ p->state = 0; -+ p->needInitState = 0; -+} -+ -+SRes LzmaDec_DecodeToDic(CLzmaDec *p, SizeT dicLimit, const Byte *src, SizeT *srcLen, -+ ELzmaFinishMode finishMode, ELzmaStatus *status) -+{ -+ SizeT inSize = *srcLen; -+ (*srcLen) = 0; -+ LzmaDec_WriteRem(p, dicLimit); -+ -+ *status = LZMA_STATUS_NOT_SPECIFIED; -+ -+ while (p->remainLen != kMatchSpecLenStart) -+ { -+ int checkEndMarkNow; -+ -+ if (p->needFlush != 0) -+ { -+ for (; inSize > 0 && p->tempBufSize < RC_INIT_SIZE; (*srcLen)++, inSize--) -+ p->tempBuf[p->tempBufSize++] = *src++; -+ if (p->tempBufSize < RC_INIT_SIZE) -+ { -+ *status = LZMA_STATUS_NEEDS_MORE_INPUT; -+ return SZ_OK; -+ } -+ if (p->tempBuf[0] != 0) -+ return SZ_ERROR_DATA; -+ -+ LzmaDec_InitRc(p, p->tempBuf); -+ p->tempBufSize = 0; -+ } -+ -+ checkEndMarkNow = 0; -+ if (p->dicPos >= dicLimit) -+ { -+ if (p->remainLen == 0 && p->code == 0) -+ { -+ *status = LZMA_STATUS_MAYBE_FINISHED_WITHOUT_MARK; -+ return SZ_OK; -+ } -+ if (finishMode == LZMA_FINISH_ANY) -+ { -+ *status = LZMA_STATUS_NOT_FINISHED; -+ return SZ_OK; -+ } -+ if (p->remainLen != 0) -+ { -+ *status = LZMA_STATUS_NOT_FINISHED; -+ return SZ_ERROR_DATA; -+ } -+ checkEndMarkNow = 1; -+ } -+ -+ if (p->needInitState) -+ LzmaDec_InitStateReal(p); -+ -+ if (p->tempBufSize == 0) -+ { -+ SizeT processed; -+ const Byte *bufLimit; -+ if (inSize < LZMA_REQUIRED_INPUT_MAX || checkEndMarkNow) -+ { -+ int dummyRes = LzmaDec_TryDummy(p, src, inSize); -+ if (dummyRes == DUMMY_ERROR) -+ { -+ memcpy(p->tempBuf, src, inSize); -+ p->tempBufSize = (unsigned)inSize; -+ (*srcLen) += inSize; -+ *status = LZMA_STATUS_NEEDS_MORE_INPUT; -+ return SZ_OK; -+ } -+ if (checkEndMarkNow && dummyRes != DUMMY_MATCH) -+ { -+ *status = LZMA_STATUS_NOT_FINISHED; -+ return SZ_ERROR_DATA; -+ } -+ bufLimit = src; -+ } -+ else -+ bufLimit = src + inSize - LZMA_REQUIRED_INPUT_MAX; -+ p->buf = src; -+ if (LzmaDec_DecodeReal2(p, dicLimit, bufLimit) != 0) -+ return SZ_ERROR_DATA; -+ processed = (SizeT)(p->buf - src); -+ (*srcLen) += processed; -+ src += processed; -+ inSize -= processed; -+ } -+ else -+ { -+ unsigned rem = p->tempBufSize, lookAhead = 0; -+ while (rem < LZMA_REQUIRED_INPUT_MAX && lookAhead < inSize) -+ p->tempBuf[rem++] = src[lookAhead++]; -+ p->tempBufSize = rem; -+ if (rem < LZMA_REQUIRED_INPUT_MAX || checkEndMarkNow) -+ { -+ int dummyRes = LzmaDec_TryDummy(p, p->tempBuf, rem); -+ if (dummyRes == DUMMY_ERROR) -+ { -+ (*srcLen) += lookAhead; -+ *status = LZMA_STATUS_NEEDS_MORE_INPUT; -+ return SZ_OK; -+ } -+ if (checkEndMarkNow && dummyRes != DUMMY_MATCH) -+ { -+ *status = LZMA_STATUS_NOT_FINISHED; -+ return SZ_ERROR_DATA; -+ } -+ } -+ p->buf = p->tempBuf; -+ if (LzmaDec_DecodeReal2(p, dicLimit, p->buf) != 0) -+ return SZ_ERROR_DATA; -+ lookAhead -= (rem - (unsigned)(p->buf - p->tempBuf)); -+ (*srcLen) += lookAhead; -+ src += lookAhead; -+ inSize -= lookAhead; -+ p->tempBufSize = 0; -+ } -+ } -+ if (p->code == 0) -+ *status = LZMA_STATUS_FINISHED_WITH_MARK; -+ return (p->code == 0) ? SZ_OK : SZ_ERROR_DATA; -+} -+ -+SRes LzmaDec_DecodeToBuf(CLzmaDec *p, Byte *dest, SizeT *destLen, const Byte *src, SizeT *srcLen, ELzmaFinishMode finishMode, ELzmaStatus *status) -+{ -+ SizeT outSize = *destLen; -+ SizeT inSize = *srcLen; -+ *srcLen = *destLen = 0; -+ for (;;) -+ { -+ SizeT inSizeCur = inSize, outSizeCur, dicPos; -+ ELzmaFinishMode curFinishMode; -+ SRes res; -+ if (p->dicPos == p->dicBufSize) -+ p->dicPos = 0; -+ dicPos = p->dicPos; -+ if (outSize > p->dicBufSize - dicPos) -+ { -+ outSizeCur = p->dicBufSize; -+ curFinishMode = LZMA_FINISH_ANY; -+ } -+ else -+ { -+ outSizeCur = dicPos + outSize; -+ curFinishMode = finishMode; -+ } -+ -+ res = LzmaDec_DecodeToDic(p, outSizeCur, src, &inSizeCur, curFinishMode, status); -+ src += inSizeCur; -+ inSize -= inSizeCur; -+ *srcLen += inSizeCur; -+ outSizeCur = p->dicPos - dicPos; -+ memcpy(dest, p->dic + dicPos, outSizeCur); -+ dest += outSizeCur; -+ outSize -= outSizeCur; -+ *destLen += outSizeCur; -+ if (res != 0) -+ return res; -+ if (outSizeCur == 0 || outSize == 0) -+ return SZ_OK; -+ } -+} -+ -+void LzmaDec_FreeProbs(CLzmaDec *p, ISzAlloc *alloc) -+{ -+ alloc->Free(alloc, p->probs); -+ p->probs = 0; -+} -+ -+static void LzmaDec_FreeDict(CLzmaDec *p, ISzAlloc *alloc) -+{ -+ alloc->Free(alloc, p->dic); -+ p->dic = 0; -+} -+ -+void LzmaDec_Free(CLzmaDec *p, ISzAlloc *alloc) -+{ -+ LzmaDec_FreeProbs(p, alloc); -+ LzmaDec_FreeDict(p, alloc); -+} -+ -+SRes LzmaProps_Decode(CLzmaProps *p, const Byte *data, unsigned size) -+{ -+ UInt32 dicSize; -+ Byte d; -+ -+ if (size < LZMA_PROPS_SIZE) -+ return SZ_ERROR_UNSUPPORTED; -+ else -+ dicSize = data[1] | ((UInt32)data[2] << 8) | ((UInt32)data[3] << 16) | ((UInt32)data[4] << 24); -+ -+ if (dicSize < LZMA_DIC_MIN) -+ dicSize = LZMA_DIC_MIN; -+ p->dicSize = dicSize; -+ -+ d = data[0]; -+ if (d >= (9 * 5 * 5)) -+ return SZ_ERROR_UNSUPPORTED; -+ -+ p->lc = d % 9; -+ d /= 9; -+ p->pb = d / 5; -+ p->lp = d % 5; -+ -+ return SZ_OK; -+} -+ -+static SRes LzmaDec_AllocateProbs2(CLzmaDec *p, const CLzmaProps *propNew, ISzAlloc *alloc) -+{ -+ UInt32 numProbs = LzmaProps_GetNumProbs(propNew); -+ if (p->probs == 0 || numProbs != p->numProbs) -+ { -+ LzmaDec_FreeProbs(p, alloc); -+ p->probs = (CLzmaProb *)alloc->Alloc(alloc, numProbs * sizeof(CLzmaProb)); -+ p->numProbs = numProbs; -+ if (p->probs == 0) -+ return SZ_ERROR_MEM; -+ } -+ return SZ_OK; -+} -+ -+SRes LzmaDec_AllocateProbs(CLzmaDec *p, const Byte *props, unsigned propsSize, ISzAlloc *alloc) -+{ -+ CLzmaProps propNew; -+ RINOK(LzmaProps_Decode(&propNew, props, propsSize)); -+ RINOK(LzmaDec_AllocateProbs2(p, &propNew, alloc)); -+ p->prop = propNew; -+ return SZ_OK; -+} -+ -+SRes LzmaDec_Allocate(CLzmaDec *p, const Byte *props, unsigned propsSize, ISzAlloc *alloc) -+{ -+ CLzmaProps propNew; -+ SizeT dicBufSize; -+ RINOK(LzmaProps_Decode(&propNew, props, propsSize)); -+ RINOK(LzmaDec_AllocateProbs2(p, &propNew, alloc)); -+ dicBufSize = propNew.dicSize; -+ if (p->dic == 0 || dicBufSize != p->dicBufSize) -+ { -+ LzmaDec_FreeDict(p, alloc); -+ p->dic = (Byte *)alloc->Alloc(alloc, dicBufSize); -+ if (p->dic == 0) -+ { -+ LzmaDec_FreeProbs(p, alloc); -+ return SZ_ERROR_MEM; -+ } -+ } -+ p->dicBufSize = dicBufSize; -+ p->prop = propNew; -+ return SZ_OK; -+} -+ -+SRes LzmaDecode(Byte *dest, SizeT *destLen, const Byte *src, SizeT *srcLen, -+ const Byte *propData, unsigned propSize, ELzmaFinishMode finishMode, -+ ELzmaStatus *status, ISzAlloc *alloc) -+{ -+ CLzmaDec p; -+ SRes res; -+ SizeT inSize = *srcLen; -+ SizeT outSize = *destLen; -+ *srcLen = *destLen = 0; -+ if (inSize < RC_INIT_SIZE) -+ return SZ_ERROR_INPUT_EOF; -+ -+ LzmaDec_Construct(&p); -+ res = LzmaDec_AllocateProbs(&p, propData, propSize, alloc); -+ if (res != 0) -+ return res; -+ p.dic = dest; -+ p.dicBufSize = outSize; -+ -+ LzmaDec_Init(&p); -+ -+ *srcLen = inSize; -+ res = LzmaDec_DecodeToDic(&p, outSize, src, srcLen, finishMode, status); -+ -+ if (res == SZ_OK && *status == LZMA_STATUS_NEEDS_MORE_INPUT) -+ res = SZ_ERROR_INPUT_EOF; -+ -+ (*destLen) = p.dicPos; -+ LzmaDec_FreeProbs(&p, alloc); -+ return res; -+} ---- /dev/null -+++ b/lib/lzma/LzmaEnc.c -@@ -0,0 +1,2271 @@ -+/* LzmaEnc.c -- LZMA Encoder -+2009-11-24 : Igor Pavlov : Public domain */ -+ -+#include -+ -+/* #define SHOW_STAT */ -+/* #define SHOW_STAT2 */ -+ -+#if defined(SHOW_STAT) || defined(SHOW_STAT2) -+#include -+#endif -+ -+#include "LzmaEnc.h" -+ -+/* disable MT */ -+#define _7ZIP_ST -+ -+#include "LzFind.h" -+#ifndef _7ZIP_ST -+#include "LzFindMt.h" -+#endif -+ -+#ifdef SHOW_STAT -+static int ttt = 0; -+#endif -+ -+#define kBlockSizeMax ((1 << LZMA_NUM_BLOCK_SIZE_BITS) - 1) -+ -+#define kBlockSize (9 << 10) -+#define kUnpackBlockSize (1 << 18) -+#define kMatchArraySize (1 << 21) -+#define kMatchRecordMaxSize ((LZMA_MATCH_LEN_MAX * 2 + 3) * LZMA_MATCH_LEN_MAX) -+ -+#define kNumMaxDirectBits (31) -+ -+#define kNumTopBits 24 -+#define kTopValue ((UInt32)1 << kNumTopBits) -+ -+#define kNumBitModelTotalBits 11 -+#define kBitModelTotal (1 << kNumBitModelTotalBits) -+#define kNumMoveBits 5 -+#define kProbInitValue (kBitModelTotal >> 1) -+ -+#define kNumMoveReducingBits 4 -+#define kNumBitPriceShiftBits 4 -+#define kBitPrice (1 << kNumBitPriceShiftBits) -+ -+void LzmaEncProps_Init(CLzmaEncProps *p) -+{ -+ p->level = 5; -+ p->dictSize = p->mc = 0; -+ p->lc = p->lp = p->pb = p->algo = p->fb = p->btMode = p->numHashBytes = p->numThreads = -1; -+ p->writeEndMark = 0; -+} -+ -+void LzmaEncProps_Normalize(CLzmaEncProps *p) -+{ -+ int level = p->level; -+ if (level < 0) level = 5; -+ p->level = level; -+ if (p->dictSize == 0) p->dictSize = (level <= 5 ? (1 << (level * 2 + 14)) : (level == 6 ? (1 << 25) : (1 << 26))); -+ if (p->lc < 0) p->lc = 3; -+ if (p->lp < 0) p->lp = 0; -+ if (p->pb < 0) p->pb = 2; -+ if (p->algo < 0) p->algo = (level < 5 ? 0 : 1); -+ if (p->fb < 0) p->fb = (level < 7 ? 32 : 64); -+ if (p->btMode < 0) p->btMode = (p->algo == 0 ? 0 : 1); -+ if (p->numHashBytes < 0) p->numHashBytes = 4; -+ if (p->mc == 0) p->mc = (16 + (p->fb >> 1)) >> (p->btMode ? 0 : 1); -+ if (p->numThreads < 0) -+ p->numThreads = -+ #ifndef _7ZIP_ST -+ ((p->btMode && p->algo) ? 2 : 1); -+ #else -+ 1; -+ #endif -+} -+ -+UInt32 LzmaEncProps_GetDictSize(const CLzmaEncProps *props2) -+{ -+ CLzmaEncProps props = *props2; -+ LzmaEncProps_Normalize(&props); -+ return props.dictSize; -+} -+ -+/* #define LZMA_LOG_BSR */ -+/* Define it for Intel's CPU */ -+ -+ -+#ifdef LZMA_LOG_BSR -+ -+#define kDicLogSizeMaxCompress 30 -+ -+#define BSR2_RET(pos, res) { unsigned long i; _BitScanReverse(&i, (pos)); res = (i + i) + ((pos >> (i - 1)) & 1); } -+ -+UInt32 GetPosSlot1(UInt32 pos) -+{ -+ UInt32 res; -+ BSR2_RET(pos, res); -+ return res; -+} -+#define GetPosSlot2(pos, res) { BSR2_RET(pos, res); } -+#define GetPosSlot(pos, res) { if (pos < 2) res = pos; else BSR2_RET(pos, res); } -+ -+#else -+ -+#define kNumLogBits (9 + (int)sizeof(size_t) / 2) -+#define kDicLogSizeMaxCompress ((kNumLogBits - 1) * 2 + 7) -+ -+void LzmaEnc_FastPosInit(Byte *g_FastPos) -+{ -+ int c = 2, slotFast; -+ g_FastPos[0] = 0; -+ g_FastPos[1] = 1; -+ -+ for (slotFast = 2; slotFast < kNumLogBits * 2; slotFast++) -+ { -+ UInt32 k = (1 << ((slotFast >> 1) - 1)); -+ UInt32 j; -+ for (j = 0; j < k; j++, c++) -+ g_FastPos[c] = (Byte)slotFast; -+ } -+} -+ -+#define BSR2_RET(pos, res) { UInt32 i = 6 + ((kNumLogBits - 1) & \ -+ (0 - (((((UInt32)1 << (kNumLogBits + 6)) - 1) - pos) >> 31))); \ -+ res = p->g_FastPos[pos >> i] + (i * 2); } -+/* -+#define BSR2_RET(pos, res) { res = (pos < (1 << (kNumLogBits + 6))) ? \ -+ p->g_FastPos[pos >> 6] + 12 : \ -+ p->g_FastPos[pos >> (6 + kNumLogBits - 1)] + (6 + (kNumLogBits - 1)) * 2; } -+*/ -+ -+#define GetPosSlot1(pos) p->g_FastPos[pos] -+#define GetPosSlot2(pos, res) { BSR2_RET(pos, res); } -+#define GetPosSlot(pos, res) { if (pos < kNumFullDistances) res = p->g_FastPos[pos]; else BSR2_RET(pos, res); } -+ -+#endif -+ -+ -+#define LZMA_NUM_REPS 4 -+ -+typedef unsigned CState; -+ -+typedef struct -+{ -+ UInt32 price; -+ -+ CState state; -+ int prev1IsChar; -+ int prev2; -+ -+ UInt32 posPrev2; -+ UInt32 backPrev2; -+ -+ UInt32 posPrev; -+ UInt32 backPrev; -+ UInt32 backs[LZMA_NUM_REPS]; -+} COptimal; -+ -+#define kNumOpts (1 << 12) -+ -+#define kNumLenToPosStates 4 -+#define kNumPosSlotBits 6 -+#define kDicLogSizeMin 0 -+#define kDicLogSizeMax 32 -+#define kDistTableSizeMax (kDicLogSizeMax * 2) -+ -+ -+#define kNumAlignBits 4 -+#define kAlignTableSize (1 << kNumAlignBits) -+#define kAlignMask (kAlignTableSize - 1) -+ -+#define kStartPosModelIndex 4 -+#define kEndPosModelIndex 14 -+#define kNumPosModels (kEndPosModelIndex - kStartPosModelIndex) -+ -+#define kNumFullDistances (1 << (kEndPosModelIndex >> 1)) -+ -+#ifdef _LZMA_PROB32 -+#define CLzmaProb UInt32 -+#else -+#define CLzmaProb UInt16 -+#endif -+ -+#define LZMA_PB_MAX 4 -+#define LZMA_LC_MAX 8 -+#define LZMA_LP_MAX 4 -+ -+#define LZMA_NUM_PB_STATES_MAX (1 << LZMA_PB_MAX) -+ -+ -+#define kLenNumLowBits 3 -+#define kLenNumLowSymbols (1 << kLenNumLowBits) -+#define kLenNumMidBits 3 -+#define kLenNumMidSymbols (1 << kLenNumMidBits) -+#define kLenNumHighBits 8 -+#define kLenNumHighSymbols (1 << kLenNumHighBits) -+ -+#define kLenNumSymbolsTotal (kLenNumLowSymbols + kLenNumMidSymbols + kLenNumHighSymbols) -+ -+#define LZMA_MATCH_LEN_MIN 2 -+#define LZMA_MATCH_LEN_MAX (LZMA_MATCH_LEN_MIN + kLenNumSymbolsTotal - 1) -+ -+#define kNumStates 12 -+ -+typedef struct -+{ -+ CLzmaProb choice; -+ CLzmaProb choice2; -+ CLzmaProb low[LZMA_NUM_PB_STATES_MAX << kLenNumLowBits]; -+ CLzmaProb mid[LZMA_NUM_PB_STATES_MAX << kLenNumMidBits]; -+ CLzmaProb high[kLenNumHighSymbols]; -+} CLenEnc; -+ -+typedef struct -+{ -+ CLenEnc p; -+ UInt32 prices[LZMA_NUM_PB_STATES_MAX][kLenNumSymbolsTotal]; -+ UInt32 tableSize; -+ UInt32 counters[LZMA_NUM_PB_STATES_MAX]; -+} CLenPriceEnc; -+ -+typedef struct -+{ -+ UInt32 range; -+ Byte cache; -+ UInt64 low; -+ UInt64 cacheSize; -+ Byte *buf; -+ Byte *bufLim; -+ Byte *bufBase; -+ ISeqOutStream *outStream; -+ UInt64 processed; -+ SRes res; -+} CRangeEnc; -+ -+typedef struct -+{ -+ CLzmaProb *litProbs; -+ -+ CLzmaProb isMatch[kNumStates][LZMA_NUM_PB_STATES_MAX]; -+ CLzmaProb isRep[kNumStates]; -+ CLzmaProb isRepG0[kNumStates]; -+ CLzmaProb isRepG1[kNumStates]; -+ CLzmaProb isRepG2[kNumStates]; -+ CLzmaProb isRep0Long[kNumStates][LZMA_NUM_PB_STATES_MAX]; -+ -+ CLzmaProb posSlotEncoder[kNumLenToPosStates][1 << kNumPosSlotBits]; -+ CLzmaProb posEncoders[kNumFullDistances - kEndPosModelIndex]; -+ CLzmaProb posAlignEncoder[1 << kNumAlignBits]; -+ -+ CLenPriceEnc lenEnc; -+ CLenPriceEnc repLenEnc; -+ -+ UInt32 reps[LZMA_NUM_REPS]; -+ UInt32 state; -+} CSaveState; -+ -+typedef struct -+{ -+ IMatchFinder matchFinder; -+ void *matchFinderObj; -+ -+ #ifndef _7ZIP_ST -+ Bool mtMode; -+ CMatchFinderMt matchFinderMt; -+ #endif -+ -+ CMatchFinder matchFinderBase; -+ -+ #ifndef _7ZIP_ST -+ Byte pad[128]; -+ #endif -+ -+ UInt32 optimumEndIndex; -+ UInt32 optimumCurrentIndex; -+ -+ UInt32 longestMatchLength; -+ UInt32 numPairs; -+ UInt32 numAvail; -+ COptimal opt[kNumOpts]; -+ -+ #ifndef LZMA_LOG_BSR -+ Byte g_FastPos[1 << kNumLogBits]; -+ #endif -+ -+ UInt32 ProbPrices[kBitModelTotal >> kNumMoveReducingBits]; -+ UInt32 matches[LZMA_MATCH_LEN_MAX * 2 + 2 + 1]; -+ UInt32 numFastBytes; -+ UInt32 additionalOffset; -+ UInt32 reps[LZMA_NUM_REPS]; -+ UInt32 state; -+ -+ UInt32 posSlotPrices[kNumLenToPosStates][kDistTableSizeMax]; -+ UInt32 distancesPrices[kNumLenToPosStates][kNumFullDistances]; -+ UInt32 alignPrices[kAlignTableSize]; -+ UInt32 alignPriceCount; -+ -+ UInt32 distTableSize; -+ -+ unsigned lc, lp, pb; -+ unsigned lpMask, pbMask; -+ -+ CLzmaProb *litProbs; -+ -+ CLzmaProb isMatch[kNumStates][LZMA_NUM_PB_STATES_MAX]; -+ CLzmaProb isRep[kNumStates]; -+ CLzmaProb isRepG0[kNumStates]; -+ CLzmaProb isRepG1[kNumStates]; -+ CLzmaProb isRepG2[kNumStates]; -+ CLzmaProb isRep0Long[kNumStates][LZMA_NUM_PB_STATES_MAX]; -+ -+ CLzmaProb posSlotEncoder[kNumLenToPosStates][1 << kNumPosSlotBits]; -+ CLzmaProb posEncoders[kNumFullDistances - kEndPosModelIndex]; -+ CLzmaProb posAlignEncoder[1 << kNumAlignBits]; -+ -+ CLenPriceEnc lenEnc; -+ CLenPriceEnc repLenEnc; -+ -+ unsigned lclp; -+ -+ Bool fastMode; -+ -+ CRangeEnc rc; -+ -+ Bool writeEndMark; -+ UInt64 nowPos64; -+ UInt32 matchPriceCount; -+ Bool finished; -+ Bool multiThread; -+ -+ SRes result; -+ UInt32 dictSize; -+ UInt32 matchFinderCycles; -+ -+ int needInit; -+ -+ CSaveState saveState; -+} CLzmaEnc; -+ -+void LzmaEnc_SaveState(CLzmaEncHandle pp) -+{ -+ CLzmaEnc *p = (CLzmaEnc *)pp; -+ CSaveState *dest = &p->saveState; -+ int i; -+ dest->lenEnc = p->lenEnc; -+ dest->repLenEnc = p->repLenEnc; -+ dest->state = p->state; -+ -+ for (i = 0; i < kNumStates; i++) -+ { -+ memcpy(dest->isMatch[i], p->isMatch[i], sizeof(p->isMatch[i])); -+ memcpy(dest->isRep0Long[i], p->isRep0Long[i], sizeof(p->isRep0Long[i])); -+ } -+ for (i = 0; i < kNumLenToPosStates; i++) -+ memcpy(dest->posSlotEncoder[i], p->posSlotEncoder[i], sizeof(p->posSlotEncoder[i])); -+ memcpy(dest->isRep, p->isRep, sizeof(p->isRep)); -+ memcpy(dest->isRepG0, p->isRepG0, sizeof(p->isRepG0)); -+ memcpy(dest->isRepG1, p->isRepG1, sizeof(p->isRepG1)); -+ memcpy(dest->isRepG2, p->isRepG2, sizeof(p->isRepG2)); -+ memcpy(dest->posEncoders, p->posEncoders, sizeof(p->posEncoders)); -+ memcpy(dest->posAlignEncoder, p->posAlignEncoder, sizeof(p->posAlignEncoder)); -+ memcpy(dest->reps, p->reps, sizeof(p->reps)); -+ memcpy(dest->litProbs, p->litProbs, (0x300 << p->lclp) * sizeof(CLzmaProb)); -+} -+ -+void LzmaEnc_RestoreState(CLzmaEncHandle pp) -+{ -+ CLzmaEnc *dest = (CLzmaEnc *)pp; -+ const CSaveState *p = &dest->saveState; -+ int i; -+ dest->lenEnc = p->lenEnc; -+ dest->repLenEnc = p->repLenEnc; -+ dest->state = p->state; -+ -+ for (i = 0; i < kNumStates; i++) -+ { -+ memcpy(dest->isMatch[i], p->isMatch[i], sizeof(p->isMatch[i])); -+ memcpy(dest->isRep0Long[i], p->isRep0Long[i], sizeof(p->isRep0Long[i])); -+ } -+ for (i = 0; i < kNumLenToPosStates; i++) -+ memcpy(dest->posSlotEncoder[i], p->posSlotEncoder[i], sizeof(p->posSlotEncoder[i])); -+ memcpy(dest->isRep, p->isRep, sizeof(p->isRep)); -+ memcpy(dest->isRepG0, p->isRepG0, sizeof(p->isRepG0)); -+ memcpy(dest->isRepG1, p->isRepG1, sizeof(p->isRepG1)); -+ memcpy(dest->isRepG2, p->isRepG2, sizeof(p->isRepG2)); -+ memcpy(dest->posEncoders, p->posEncoders, sizeof(p->posEncoders)); -+ memcpy(dest->posAlignEncoder, p->posAlignEncoder, sizeof(p->posAlignEncoder)); -+ memcpy(dest->reps, p->reps, sizeof(p->reps)); -+ memcpy(dest->litProbs, p->litProbs, (0x300 << dest->lclp) * sizeof(CLzmaProb)); -+} -+ -+SRes LzmaEnc_SetProps(CLzmaEncHandle pp, const CLzmaEncProps *props2) -+{ -+ CLzmaEnc *p = (CLzmaEnc *)pp; -+ CLzmaEncProps props = *props2; -+ LzmaEncProps_Normalize(&props); -+ -+ if (props.lc > LZMA_LC_MAX || props.lp > LZMA_LP_MAX || props.pb > LZMA_PB_MAX || -+ props.dictSize > (1 << kDicLogSizeMaxCompress) || props.dictSize > (1 << 30)) -+ return SZ_ERROR_PARAM; -+ p->dictSize = props.dictSize; -+ p->matchFinderCycles = props.mc; -+ { -+ unsigned fb = props.fb; -+ if (fb < 5) -+ fb = 5; -+ if (fb > LZMA_MATCH_LEN_MAX) -+ fb = LZMA_MATCH_LEN_MAX; -+ p->numFastBytes = fb; -+ } -+ p->lc = props.lc; -+ p->lp = props.lp; -+ p->pb = props.pb; -+ p->fastMode = (props.algo == 0); -+ p->matchFinderBase.btMode = props.btMode; -+ { -+ UInt32 numHashBytes = 4; -+ if (props.btMode) -+ { -+ if (props.numHashBytes < 2) -+ numHashBytes = 2; -+ else if (props.numHashBytes < 4) -+ numHashBytes = props.numHashBytes; -+ } -+ p->matchFinderBase.numHashBytes = numHashBytes; -+ } -+ -+ p->matchFinderBase.cutValue = props.mc; -+ -+ p->writeEndMark = props.writeEndMark; -+ -+ #ifndef _7ZIP_ST -+ /* -+ if (newMultiThread != _multiThread) -+ { -+ ReleaseMatchFinder(); -+ _multiThread = newMultiThread; -+ } -+ */ -+ p->multiThread = (props.numThreads > 1); -+ #endif -+ -+ return SZ_OK; -+} -+ -+static const int kLiteralNextStates[kNumStates] = {0, 0, 0, 0, 1, 2, 3, 4, 5, 6, 4, 5}; -+static const int kMatchNextStates[kNumStates] = {7, 7, 7, 7, 7, 7, 7, 10, 10, 10, 10, 10}; -+static const int kRepNextStates[kNumStates] = {8, 8, 8, 8, 8, 8, 8, 11, 11, 11, 11, 11}; -+static const int kShortRepNextStates[kNumStates]= {9, 9, 9, 9, 9, 9, 9, 11, 11, 11, 11, 11}; -+ -+#define IsCharState(s) ((s) < 7) -+ -+#define GetLenToPosState(len) (((len) < kNumLenToPosStates + 1) ? (len) - 2 : kNumLenToPosStates - 1) -+ -+#define kInfinityPrice (1 << 30) -+ -+static void RangeEnc_Construct(CRangeEnc *p) -+{ -+ p->outStream = 0; -+ p->bufBase = 0; -+} -+ -+#define RangeEnc_GetProcessed(p) ((p)->processed + ((p)->buf - (p)->bufBase) + (p)->cacheSize) -+ -+#define RC_BUF_SIZE (1 << 16) -+static int RangeEnc_Alloc(CRangeEnc *p, ISzAlloc *alloc) -+{ -+ if (p->bufBase == 0) -+ { -+ p->bufBase = (Byte *)alloc->Alloc(alloc, RC_BUF_SIZE); -+ if (p->bufBase == 0) -+ return 0; -+ p->bufLim = p->bufBase + RC_BUF_SIZE; -+ } -+ return 1; -+} -+ -+static void RangeEnc_Free(CRangeEnc *p, ISzAlloc *alloc) -+{ -+ alloc->Free(alloc, p->bufBase); -+ p->bufBase = 0; -+} -+ -+static void RangeEnc_Init(CRangeEnc *p) -+{ -+ /* Stream.Init(); */ -+ p->low = 0; -+ p->range = 0xFFFFFFFF; -+ p->cacheSize = 1; -+ p->cache = 0; -+ -+ p->buf = p->bufBase; -+ -+ p->processed = 0; -+ p->res = SZ_OK; -+} -+ -+static void RangeEnc_FlushStream(CRangeEnc *p) -+{ -+ size_t num; -+ if (p->res != SZ_OK) -+ return; -+ num = p->buf - p->bufBase; -+ if (num != p->outStream->Write(p->outStream, p->bufBase, num)) -+ p->res = SZ_ERROR_WRITE; -+ p->processed += num; -+ p->buf = p->bufBase; -+} -+ -+static void MY_FAST_CALL RangeEnc_ShiftLow(CRangeEnc *p) -+{ -+ if ((UInt32)p->low < (UInt32)0xFF000000 || (int)(p->low >> 32) != 0) -+ { -+ Byte temp = p->cache; -+ do -+ { -+ Byte *buf = p->buf; -+ *buf++ = (Byte)(temp + (Byte)(p->low >> 32)); -+ p->buf = buf; -+ if (buf == p->bufLim) -+ RangeEnc_FlushStream(p); -+ temp = 0xFF; -+ } -+ while (--p->cacheSize != 0); -+ p->cache = (Byte)((UInt32)p->low >> 24); -+ } -+ p->cacheSize++; -+ p->low = (UInt32)p->low << 8; -+} -+ -+static void RangeEnc_FlushData(CRangeEnc *p) -+{ -+ int i; -+ for (i = 0; i < 5; i++) -+ RangeEnc_ShiftLow(p); -+} -+ -+static void RangeEnc_EncodeDirectBits(CRangeEnc *p, UInt32 value, int numBits) -+{ -+ do -+ { -+ p->range >>= 1; -+ p->low += p->range & (0 - ((value >> --numBits) & 1)); -+ if (p->range < kTopValue) -+ { -+ p->range <<= 8; -+ RangeEnc_ShiftLow(p); -+ } -+ } -+ while (numBits != 0); -+} -+ -+static void RangeEnc_EncodeBit(CRangeEnc *p, CLzmaProb *prob, UInt32 symbol) -+{ -+ UInt32 ttt = *prob; -+ UInt32 newBound = (p->range >> kNumBitModelTotalBits) * ttt; -+ if (symbol == 0) -+ { -+ p->range = newBound; -+ ttt += (kBitModelTotal - ttt) >> kNumMoveBits; -+ } -+ else -+ { -+ p->low += newBound; -+ p->range -= newBound; -+ ttt -= ttt >> kNumMoveBits; -+ } -+ *prob = (CLzmaProb)ttt; -+ if (p->range < kTopValue) -+ { -+ p->range <<= 8; -+ RangeEnc_ShiftLow(p); -+ } -+} -+ -+static void LitEnc_Encode(CRangeEnc *p, CLzmaProb *probs, UInt32 symbol) -+{ -+ symbol |= 0x100; -+ do -+ { -+ RangeEnc_EncodeBit(p, probs + (symbol >> 8), (symbol >> 7) & 1); -+ symbol <<= 1; -+ } -+ while (symbol < 0x10000); -+} -+ -+static void LitEnc_EncodeMatched(CRangeEnc *p, CLzmaProb *probs, UInt32 symbol, UInt32 matchByte) -+{ -+ UInt32 offs = 0x100; -+ symbol |= 0x100; -+ do -+ { -+ matchByte <<= 1; -+ RangeEnc_EncodeBit(p, probs + (offs + (matchByte & offs) + (symbol >> 8)), (symbol >> 7) & 1); -+ symbol <<= 1; -+ offs &= ~(matchByte ^ symbol); -+ } -+ while (symbol < 0x10000); -+} -+ -+void LzmaEnc_InitPriceTables(UInt32 *ProbPrices) -+{ -+ UInt32 i; -+ for (i = (1 << kNumMoveReducingBits) / 2; i < kBitModelTotal; i += (1 << kNumMoveReducingBits)) -+ { -+ const int kCyclesBits = kNumBitPriceShiftBits; -+ UInt32 w = i; -+ UInt32 bitCount = 0; -+ int j; -+ for (j = 0; j < kCyclesBits; j++) -+ { -+ w = w * w; -+ bitCount <<= 1; -+ while (w >= ((UInt32)1 << 16)) -+ { -+ w >>= 1; -+ bitCount++; -+ } -+ } -+ ProbPrices[i >> kNumMoveReducingBits] = ((kNumBitModelTotalBits << kCyclesBits) - 15 - bitCount); -+ } -+} -+ -+ -+#define GET_PRICE(prob, symbol) \ -+ p->ProbPrices[((prob) ^ (((-(int)(symbol))) & (kBitModelTotal - 1))) >> kNumMoveReducingBits]; -+ -+#define GET_PRICEa(prob, symbol) \ -+ ProbPrices[((prob) ^ ((-((int)(symbol))) & (kBitModelTotal - 1))) >> kNumMoveReducingBits]; -+ -+#define GET_PRICE_0(prob) p->ProbPrices[(prob) >> kNumMoveReducingBits] -+#define GET_PRICE_1(prob) p->ProbPrices[((prob) ^ (kBitModelTotal - 1)) >> kNumMoveReducingBits] -+ -+#define GET_PRICE_0a(prob) ProbPrices[(prob) >> kNumMoveReducingBits] -+#define GET_PRICE_1a(prob) ProbPrices[((prob) ^ (kBitModelTotal - 1)) >> kNumMoveReducingBits] -+ -+static UInt32 LitEnc_GetPrice(const CLzmaProb *probs, UInt32 symbol, UInt32 *ProbPrices) -+{ -+ UInt32 price = 0; -+ symbol |= 0x100; -+ do -+ { -+ price += GET_PRICEa(probs[symbol >> 8], (symbol >> 7) & 1); -+ symbol <<= 1; -+ } -+ while (symbol < 0x10000); -+ return price; -+} -+ -+static UInt32 LitEnc_GetPriceMatched(const CLzmaProb *probs, UInt32 symbol, UInt32 matchByte, UInt32 *ProbPrices) -+{ -+ UInt32 price = 0; -+ UInt32 offs = 0x100; -+ symbol |= 0x100; -+ do -+ { -+ matchByte <<= 1; -+ price += GET_PRICEa(probs[offs + (matchByte & offs) + (symbol >> 8)], (symbol >> 7) & 1); -+ symbol <<= 1; -+ offs &= ~(matchByte ^ symbol); -+ } -+ while (symbol < 0x10000); -+ return price; -+} -+ -+ -+static void RcTree_Encode(CRangeEnc *rc, CLzmaProb *probs, int numBitLevels, UInt32 symbol) -+{ -+ UInt32 m = 1; -+ int i; -+ for (i = numBitLevels; i != 0;) -+ { -+ UInt32 bit; -+ i--; -+ bit = (symbol >> i) & 1; -+ RangeEnc_EncodeBit(rc, probs + m, bit); -+ m = (m << 1) | bit; -+ } -+} -+ -+static void RcTree_ReverseEncode(CRangeEnc *rc, CLzmaProb *probs, int numBitLevels, UInt32 symbol) -+{ -+ UInt32 m = 1; -+ int i; -+ for (i = 0; i < numBitLevels; i++) -+ { -+ UInt32 bit = symbol & 1; -+ RangeEnc_EncodeBit(rc, probs + m, bit); -+ m = (m << 1) | bit; -+ symbol >>= 1; -+ } -+} -+ -+static UInt32 RcTree_GetPrice(const CLzmaProb *probs, int numBitLevels, UInt32 symbol, UInt32 *ProbPrices) -+{ -+ UInt32 price = 0; -+ symbol |= (1 << numBitLevels); -+ while (symbol != 1) -+ { -+ price += GET_PRICEa(probs[symbol >> 1], symbol & 1); -+ symbol >>= 1; -+ } -+ return price; -+} -+ -+static UInt32 RcTree_ReverseGetPrice(const CLzmaProb *probs, int numBitLevels, UInt32 symbol, UInt32 *ProbPrices) -+{ -+ UInt32 price = 0; -+ UInt32 m = 1; -+ int i; -+ for (i = numBitLevels; i != 0; i--) -+ { -+ UInt32 bit = symbol & 1; -+ symbol >>= 1; -+ price += GET_PRICEa(probs[m], bit); -+ m = (m << 1) | bit; -+ } -+ return price; -+} -+ -+ -+static void LenEnc_Init(CLenEnc *p) -+{ -+ unsigned i; -+ p->choice = p->choice2 = kProbInitValue; -+ for (i = 0; i < (LZMA_NUM_PB_STATES_MAX << kLenNumLowBits); i++) -+ p->low[i] = kProbInitValue; -+ for (i = 0; i < (LZMA_NUM_PB_STATES_MAX << kLenNumMidBits); i++) -+ p->mid[i] = kProbInitValue; -+ for (i = 0; i < kLenNumHighSymbols; i++) -+ p->high[i] = kProbInitValue; -+} -+ -+static void LenEnc_Encode(CLenEnc *p, CRangeEnc *rc, UInt32 symbol, UInt32 posState) -+{ -+ if (symbol < kLenNumLowSymbols) -+ { -+ RangeEnc_EncodeBit(rc, &p->choice, 0); -+ RcTree_Encode(rc, p->low + (posState << kLenNumLowBits), kLenNumLowBits, symbol); -+ } -+ else -+ { -+ RangeEnc_EncodeBit(rc, &p->choice, 1); -+ if (symbol < kLenNumLowSymbols + kLenNumMidSymbols) -+ { -+ RangeEnc_EncodeBit(rc, &p->choice2, 0); -+ RcTree_Encode(rc, p->mid + (posState << kLenNumMidBits), kLenNumMidBits, symbol - kLenNumLowSymbols); -+ } -+ else -+ { -+ RangeEnc_EncodeBit(rc, &p->choice2, 1); -+ RcTree_Encode(rc, p->high, kLenNumHighBits, symbol - kLenNumLowSymbols - kLenNumMidSymbols); -+ } -+ } -+} -+ -+static void LenEnc_SetPrices(CLenEnc *p, UInt32 posState, UInt32 numSymbols, UInt32 *prices, UInt32 *ProbPrices) -+{ -+ UInt32 a0 = GET_PRICE_0a(p->choice); -+ UInt32 a1 = GET_PRICE_1a(p->choice); -+ UInt32 b0 = a1 + GET_PRICE_0a(p->choice2); -+ UInt32 b1 = a1 + GET_PRICE_1a(p->choice2); -+ UInt32 i = 0; -+ for (i = 0; i < kLenNumLowSymbols; i++) -+ { -+ if (i >= numSymbols) -+ return; -+ prices[i] = a0 + RcTree_GetPrice(p->low + (posState << kLenNumLowBits), kLenNumLowBits, i, ProbPrices); -+ } -+ for (; i < kLenNumLowSymbols + kLenNumMidSymbols; i++) -+ { -+ if (i >= numSymbols) -+ return; -+ prices[i] = b0 + RcTree_GetPrice(p->mid + (posState << kLenNumMidBits), kLenNumMidBits, i - kLenNumLowSymbols, ProbPrices); -+ } -+ for (; i < numSymbols; i++) -+ prices[i] = b1 + RcTree_GetPrice(p->high, kLenNumHighBits, i - kLenNumLowSymbols - kLenNumMidSymbols, ProbPrices); -+} -+ -+static void MY_FAST_CALL LenPriceEnc_UpdateTable(CLenPriceEnc *p, UInt32 posState, UInt32 *ProbPrices) -+{ -+ LenEnc_SetPrices(&p->p, posState, p->tableSize, p->prices[posState], ProbPrices); -+ p->counters[posState] = p->tableSize; -+} -+ -+static void LenPriceEnc_UpdateTables(CLenPriceEnc *p, UInt32 numPosStates, UInt32 *ProbPrices) -+{ -+ UInt32 posState; -+ for (posState = 0; posState < numPosStates; posState++) -+ LenPriceEnc_UpdateTable(p, posState, ProbPrices); -+} -+ -+static void LenEnc_Encode2(CLenPriceEnc *p, CRangeEnc *rc, UInt32 symbol, UInt32 posState, Bool updatePrice, UInt32 *ProbPrices) -+{ -+ LenEnc_Encode(&p->p, rc, symbol, posState); -+ if (updatePrice) -+ if (--p->counters[posState] == 0) -+ LenPriceEnc_UpdateTable(p, posState, ProbPrices); -+} -+ -+ -+ -+ -+static void MovePos(CLzmaEnc *p, UInt32 num) -+{ -+ #ifdef SHOW_STAT -+ ttt += num; -+ printf("\n MovePos %d", num); -+ #endif -+ if (num != 0) -+ { -+ p->additionalOffset += num; -+ p->matchFinder.Skip(p->matchFinderObj, num); -+ } -+} -+ -+static UInt32 ReadMatchDistances(CLzmaEnc *p, UInt32 *numDistancePairsRes) -+{ -+ UInt32 lenRes = 0, numPairs; -+ p->numAvail = p->matchFinder.GetNumAvailableBytes(p->matchFinderObj); -+ numPairs = p->matchFinder.GetMatches(p->matchFinderObj, p->matches); -+ #ifdef SHOW_STAT -+ printf("\n i = %d numPairs = %d ", ttt, numPairs / 2); -+ ttt++; -+ { -+ UInt32 i; -+ for (i = 0; i < numPairs; i += 2) -+ printf("%2d %6d | ", p->matches[i], p->matches[i + 1]); -+ } -+ #endif -+ if (numPairs > 0) -+ { -+ lenRes = p->matches[numPairs - 2]; -+ if (lenRes == p->numFastBytes) -+ { -+ const Byte *pby = p->matchFinder.GetPointerToCurrentPos(p->matchFinderObj) - 1; -+ UInt32 distance = p->matches[numPairs - 1] + 1; -+ UInt32 numAvail = p->numAvail; -+ if (numAvail > LZMA_MATCH_LEN_MAX) -+ numAvail = LZMA_MATCH_LEN_MAX; -+ { -+ const Byte *pby2 = pby - distance; -+ for (; lenRes < numAvail && pby[lenRes] == pby2[lenRes]; lenRes++); -+ } -+ } -+ } -+ p->additionalOffset++; -+ *numDistancePairsRes = numPairs; -+ return lenRes; -+} -+ -+ -+#define MakeAsChar(p) (p)->backPrev = (UInt32)(-1); (p)->prev1IsChar = False; -+#define MakeAsShortRep(p) (p)->backPrev = 0; (p)->prev1IsChar = False; -+#define IsShortRep(p) ((p)->backPrev == 0) -+ -+static UInt32 GetRepLen1Price(CLzmaEnc *p, UInt32 state, UInt32 posState) -+{ -+ return -+ GET_PRICE_0(p->isRepG0[state]) + -+ GET_PRICE_0(p->isRep0Long[state][posState]); -+} -+ -+static UInt32 GetPureRepPrice(CLzmaEnc *p, UInt32 repIndex, UInt32 state, UInt32 posState) -+{ -+ UInt32 price; -+ if (repIndex == 0) -+ { -+ price = GET_PRICE_0(p->isRepG0[state]); -+ price += GET_PRICE_1(p->isRep0Long[state][posState]); -+ } -+ else -+ { -+ price = GET_PRICE_1(p->isRepG0[state]); -+ if (repIndex == 1) -+ price += GET_PRICE_0(p->isRepG1[state]); -+ else -+ { -+ price += GET_PRICE_1(p->isRepG1[state]); -+ price += GET_PRICE(p->isRepG2[state], repIndex - 2); -+ } -+ } -+ return price; -+} -+ -+static UInt32 GetRepPrice(CLzmaEnc *p, UInt32 repIndex, UInt32 len, UInt32 state, UInt32 posState) -+{ -+ return p->repLenEnc.prices[posState][len - LZMA_MATCH_LEN_MIN] + -+ GetPureRepPrice(p, repIndex, state, posState); -+} -+ -+static UInt32 Backward(CLzmaEnc *p, UInt32 *backRes, UInt32 cur) -+{ -+ UInt32 posMem = p->opt[cur].posPrev; -+ UInt32 backMem = p->opt[cur].backPrev; -+ p->optimumEndIndex = cur; -+ do -+ { -+ if (p->opt[cur].prev1IsChar) -+ { -+ MakeAsChar(&p->opt[posMem]) -+ p->opt[posMem].posPrev = posMem - 1; -+ if (p->opt[cur].prev2) -+ { -+ p->opt[posMem - 1].prev1IsChar = False; -+ p->opt[posMem - 1].posPrev = p->opt[cur].posPrev2; -+ p->opt[posMem - 1].backPrev = p->opt[cur].backPrev2; -+ } -+ } -+ { -+ UInt32 posPrev = posMem; -+ UInt32 backCur = backMem; -+ -+ backMem = p->opt[posPrev].backPrev; -+ posMem = p->opt[posPrev].posPrev; -+ -+ p->opt[posPrev].backPrev = backCur; -+ p->opt[posPrev].posPrev = cur; -+ cur = posPrev; -+ } -+ } -+ while (cur != 0); -+ *backRes = p->opt[0].backPrev; -+ p->optimumCurrentIndex = p->opt[0].posPrev; -+ return p->optimumCurrentIndex; -+} -+ -+#define LIT_PROBS(pos, prevByte) (p->litProbs + ((((pos) & p->lpMask) << p->lc) + ((prevByte) >> (8 - p->lc))) * 0x300) -+ -+static UInt32 GetOptimum(CLzmaEnc *p, UInt32 position, UInt32 *backRes) -+{ -+ UInt32 numAvail, mainLen, numPairs, repMaxIndex, i, posState, lenEnd, len, cur; -+ UInt32 matchPrice, repMatchPrice, normalMatchPrice; -+ UInt32 reps[LZMA_NUM_REPS], repLens[LZMA_NUM_REPS]; -+ UInt32 *matches; -+ const Byte *data; -+ Byte curByte, matchByte; -+ if (p->optimumEndIndex != p->optimumCurrentIndex) -+ { -+ const COptimal *opt = &p->opt[p->optimumCurrentIndex]; -+ UInt32 lenRes = opt->posPrev - p->optimumCurrentIndex; -+ *backRes = opt->backPrev; -+ p->optimumCurrentIndex = opt->posPrev; -+ return lenRes; -+ } -+ p->optimumCurrentIndex = p->optimumEndIndex = 0; -+ -+ if (p->additionalOffset == 0) -+ mainLen = ReadMatchDistances(p, &numPairs); -+ else -+ { -+ mainLen = p->longestMatchLength; -+ numPairs = p->numPairs; -+ } -+ -+ numAvail = p->numAvail; -+ if (numAvail < 2) -+ { -+ *backRes = (UInt32)(-1); -+ return 1; -+ } -+ if (numAvail > LZMA_MATCH_LEN_MAX) -+ numAvail = LZMA_MATCH_LEN_MAX; -+ -+ data = p->matchFinder.GetPointerToCurrentPos(p->matchFinderObj) - 1; -+ repMaxIndex = 0; -+ for (i = 0; i < LZMA_NUM_REPS; i++) -+ { -+ UInt32 lenTest; -+ const Byte *data2; -+ reps[i] = p->reps[i]; -+ data2 = data - (reps[i] + 1); -+ if (data[0] != data2[0] || data[1] != data2[1]) -+ { -+ repLens[i] = 0; -+ continue; -+ } -+ for (lenTest = 2; lenTest < numAvail && data[lenTest] == data2[lenTest]; lenTest++); -+ repLens[i] = lenTest; -+ if (lenTest > repLens[repMaxIndex]) -+ repMaxIndex = i; -+ } -+ if (repLens[repMaxIndex] >= p->numFastBytes) -+ { -+ UInt32 lenRes; -+ *backRes = repMaxIndex; -+ lenRes = repLens[repMaxIndex]; -+ MovePos(p, lenRes - 1); -+ return lenRes; -+ } -+ -+ matches = p->matches; -+ if (mainLen >= p->numFastBytes) -+ { -+ *backRes = matches[numPairs - 1] + LZMA_NUM_REPS; -+ MovePos(p, mainLen - 1); -+ return mainLen; -+ } -+ curByte = *data; -+ matchByte = *(data - (reps[0] + 1)); -+ -+ if (mainLen < 2 && curByte != matchByte && repLens[repMaxIndex] < 2) -+ { -+ *backRes = (UInt32)-1; -+ return 1; -+ } -+ -+ p->opt[0].state = (CState)p->state; -+ -+ posState = (position & p->pbMask); -+ -+ { -+ const CLzmaProb *probs = LIT_PROBS(position, *(data - 1)); -+ p->opt[1].price = GET_PRICE_0(p->isMatch[p->state][posState]) + -+ (!IsCharState(p->state) ? -+ LitEnc_GetPriceMatched(probs, curByte, matchByte, p->ProbPrices) : -+ LitEnc_GetPrice(probs, curByte, p->ProbPrices)); -+ } -+ -+ MakeAsChar(&p->opt[1]); -+ -+ matchPrice = GET_PRICE_1(p->isMatch[p->state][posState]); -+ repMatchPrice = matchPrice + GET_PRICE_1(p->isRep[p->state]); -+ -+ if (matchByte == curByte) -+ { -+ UInt32 shortRepPrice = repMatchPrice + GetRepLen1Price(p, p->state, posState); -+ if (shortRepPrice < p->opt[1].price) -+ { -+ p->opt[1].price = shortRepPrice; -+ MakeAsShortRep(&p->opt[1]); -+ } -+ } -+ lenEnd = ((mainLen >= repLens[repMaxIndex]) ? mainLen : repLens[repMaxIndex]); -+ -+ if (lenEnd < 2) -+ { -+ *backRes = p->opt[1].backPrev; -+ return 1; -+ } -+ -+ p->opt[1].posPrev = 0; -+ for (i = 0; i < LZMA_NUM_REPS; i++) -+ p->opt[0].backs[i] = reps[i]; -+ -+ len = lenEnd; -+ do -+ p->opt[len--].price = kInfinityPrice; -+ while (len >= 2); -+ -+ for (i = 0; i < LZMA_NUM_REPS; i++) -+ { -+ UInt32 repLen = repLens[i]; -+ UInt32 price; -+ if (repLen < 2) -+ continue; -+ price = repMatchPrice + GetPureRepPrice(p, i, p->state, posState); -+ do -+ { -+ UInt32 curAndLenPrice = price + p->repLenEnc.prices[posState][repLen - 2]; -+ COptimal *opt = &p->opt[repLen]; -+ if (curAndLenPrice < opt->price) -+ { -+ opt->price = curAndLenPrice; -+ opt->posPrev = 0; -+ opt->backPrev = i; -+ opt->prev1IsChar = False; -+ } -+ } -+ while (--repLen >= 2); -+ } -+ -+ normalMatchPrice = matchPrice + GET_PRICE_0(p->isRep[p->state]); -+ -+ len = ((repLens[0] >= 2) ? repLens[0] + 1 : 2); -+ if (len <= mainLen) -+ { -+ UInt32 offs = 0; -+ while (len > matches[offs]) -+ offs += 2; -+ for (; ; len++) -+ { -+ COptimal *opt; -+ UInt32 distance = matches[offs + 1]; -+ -+ UInt32 curAndLenPrice = normalMatchPrice + p->lenEnc.prices[posState][len - LZMA_MATCH_LEN_MIN]; -+ UInt32 lenToPosState = GetLenToPosState(len); -+ if (distance < kNumFullDistances) -+ curAndLenPrice += p->distancesPrices[lenToPosState][distance]; -+ else -+ { -+ UInt32 slot; -+ GetPosSlot2(distance, slot); -+ curAndLenPrice += p->alignPrices[distance & kAlignMask] + p->posSlotPrices[lenToPosState][slot]; -+ } -+ opt = &p->opt[len]; -+ if (curAndLenPrice < opt->price) -+ { -+ opt->price = curAndLenPrice; -+ opt->posPrev = 0; -+ opt->backPrev = distance + LZMA_NUM_REPS; -+ opt->prev1IsChar = False; -+ } -+ if (len == matches[offs]) -+ { -+ offs += 2; -+ if (offs == numPairs) -+ break; -+ } -+ } -+ } -+ -+ cur = 0; -+ -+ #ifdef SHOW_STAT2 -+ if (position >= 0) -+ { -+ unsigned i; -+ printf("\n pos = %4X", position); -+ for (i = cur; i <= lenEnd; i++) -+ printf("\nprice[%4X] = %d", position - cur + i, p->opt[i].price); -+ } -+ #endif -+ -+ for (;;) -+ { -+ UInt32 numAvailFull, newLen, numPairs, posPrev, state, posState, startLen; -+ UInt32 curPrice, curAnd1Price, matchPrice, repMatchPrice; -+ Bool nextIsChar; -+ Byte curByte, matchByte; -+ const Byte *data; -+ COptimal *curOpt; -+ COptimal *nextOpt; -+ -+ cur++; -+ if (cur == lenEnd) -+ return Backward(p, backRes, cur); -+ -+ newLen = ReadMatchDistances(p, &numPairs); -+ if (newLen >= p->numFastBytes) -+ { -+ p->numPairs = numPairs; -+ p->longestMatchLength = newLen; -+ return Backward(p, backRes, cur); -+ } -+ position++; -+ curOpt = &p->opt[cur]; -+ posPrev = curOpt->posPrev; -+ if (curOpt->prev1IsChar) -+ { -+ posPrev--; -+ if (curOpt->prev2) -+ { -+ state = p->opt[curOpt->posPrev2].state; -+ if (curOpt->backPrev2 < LZMA_NUM_REPS) -+ state = kRepNextStates[state]; -+ else -+ state = kMatchNextStates[state]; -+ } -+ else -+ state = p->opt[posPrev].state; -+ state = kLiteralNextStates[state]; -+ } -+ else -+ state = p->opt[posPrev].state; -+ if (posPrev == cur - 1) -+ { -+ if (IsShortRep(curOpt)) -+ state = kShortRepNextStates[state]; -+ else -+ state = kLiteralNextStates[state]; -+ } -+ else -+ { -+ UInt32 pos; -+ const COptimal *prevOpt; -+ if (curOpt->prev1IsChar && curOpt->prev2) -+ { -+ posPrev = curOpt->posPrev2; -+ pos = curOpt->backPrev2; -+ state = kRepNextStates[state]; -+ } -+ else -+ { -+ pos = curOpt->backPrev; -+ if (pos < LZMA_NUM_REPS) -+ state = kRepNextStates[state]; -+ else -+ state = kMatchNextStates[state]; -+ } -+ prevOpt = &p->opt[posPrev]; -+ if (pos < LZMA_NUM_REPS) -+ { -+ UInt32 i; -+ reps[0] = prevOpt->backs[pos]; -+ for (i = 1; i <= pos; i++) -+ reps[i] = prevOpt->backs[i - 1]; -+ for (; i < LZMA_NUM_REPS; i++) -+ reps[i] = prevOpt->backs[i]; -+ } -+ else -+ { -+ UInt32 i; -+ reps[0] = (pos - LZMA_NUM_REPS); -+ for (i = 1; i < LZMA_NUM_REPS; i++) -+ reps[i] = prevOpt->backs[i - 1]; -+ } -+ } -+ curOpt->state = (CState)state; -+ -+ curOpt->backs[0] = reps[0]; -+ curOpt->backs[1] = reps[1]; -+ curOpt->backs[2] = reps[2]; -+ curOpt->backs[3] = reps[3]; -+ -+ curPrice = curOpt->price; -+ nextIsChar = False; -+ data = p->matchFinder.GetPointerToCurrentPos(p->matchFinderObj) - 1; -+ curByte = *data; -+ matchByte = *(data - (reps[0] + 1)); -+ -+ posState = (position & p->pbMask); -+ -+ curAnd1Price = curPrice + GET_PRICE_0(p->isMatch[state][posState]); -+ { -+ const CLzmaProb *probs = LIT_PROBS(position, *(data - 1)); -+ curAnd1Price += -+ (!IsCharState(state) ? -+ LitEnc_GetPriceMatched(probs, curByte, matchByte, p->ProbPrices) : -+ LitEnc_GetPrice(probs, curByte, p->ProbPrices)); -+ } -+ -+ nextOpt = &p->opt[cur + 1]; -+ -+ if (curAnd1Price < nextOpt->price) -+ { -+ nextOpt->price = curAnd1Price; -+ nextOpt->posPrev = cur; -+ MakeAsChar(nextOpt); -+ nextIsChar = True; -+ } -+ -+ matchPrice = curPrice + GET_PRICE_1(p->isMatch[state][posState]); -+ repMatchPrice = matchPrice + GET_PRICE_1(p->isRep[state]); -+ -+ if (matchByte == curByte && !(nextOpt->posPrev < cur && nextOpt->backPrev == 0)) -+ { -+ UInt32 shortRepPrice = repMatchPrice + GetRepLen1Price(p, state, posState); -+ if (shortRepPrice <= nextOpt->price) -+ { -+ nextOpt->price = shortRepPrice; -+ nextOpt->posPrev = cur; -+ MakeAsShortRep(nextOpt); -+ nextIsChar = True; -+ } -+ } -+ numAvailFull = p->numAvail; -+ { -+ UInt32 temp = kNumOpts - 1 - cur; -+ if (temp < numAvailFull) -+ numAvailFull = temp; -+ } -+ -+ if (numAvailFull < 2) -+ continue; -+ numAvail = (numAvailFull <= p->numFastBytes ? numAvailFull : p->numFastBytes); -+ -+ if (!nextIsChar && matchByte != curByte) /* speed optimization */ -+ { -+ /* try Literal + rep0 */ -+ UInt32 temp; -+ UInt32 lenTest2; -+ const Byte *data2 = data - (reps[0] + 1); -+ UInt32 limit = p->numFastBytes + 1; -+ if (limit > numAvailFull) -+ limit = numAvailFull; -+ -+ for (temp = 1; temp < limit && data[temp] == data2[temp]; temp++); -+ lenTest2 = temp - 1; -+ if (lenTest2 >= 2) -+ { -+ UInt32 state2 = kLiteralNextStates[state]; -+ UInt32 posStateNext = (position + 1) & p->pbMask; -+ UInt32 nextRepMatchPrice = curAnd1Price + -+ GET_PRICE_1(p->isMatch[state2][posStateNext]) + -+ GET_PRICE_1(p->isRep[state2]); -+ /* for (; lenTest2 >= 2; lenTest2--) */ -+ { -+ UInt32 curAndLenPrice; -+ COptimal *opt; -+ UInt32 offset = cur + 1 + lenTest2; -+ while (lenEnd < offset) -+ p->opt[++lenEnd].price = kInfinityPrice; -+ curAndLenPrice = nextRepMatchPrice + GetRepPrice(p, 0, lenTest2, state2, posStateNext); -+ opt = &p->opt[offset]; -+ if (curAndLenPrice < opt->price) -+ { -+ opt->price = curAndLenPrice; -+ opt->posPrev = cur + 1; -+ opt->backPrev = 0; -+ opt->prev1IsChar = True; -+ opt->prev2 = False; -+ } -+ } -+ } -+ } -+ -+ startLen = 2; /* speed optimization */ -+ { -+ UInt32 repIndex; -+ for (repIndex = 0; repIndex < LZMA_NUM_REPS; repIndex++) -+ { -+ UInt32 lenTest; -+ UInt32 lenTestTemp; -+ UInt32 price; -+ const Byte *data2 = data - (reps[repIndex] + 1); -+ if (data[0] != data2[0] || data[1] != data2[1]) -+ continue; -+ for (lenTest = 2; lenTest < numAvail && data[lenTest] == data2[lenTest]; lenTest++); -+ while (lenEnd < cur + lenTest) -+ p->opt[++lenEnd].price = kInfinityPrice; -+ lenTestTemp = lenTest; -+ price = repMatchPrice + GetPureRepPrice(p, repIndex, state, posState); -+ do -+ { -+ UInt32 curAndLenPrice = price + p->repLenEnc.prices[posState][lenTest - 2]; -+ COptimal *opt = &p->opt[cur + lenTest]; -+ if (curAndLenPrice < opt->price) -+ { -+ opt->price = curAndLenPrice; -+ opt->posPrev = cur; -+ opt->backPrev = repIndex; -+ opt->prev1IsChar = False; -+ } -+ } -+ while (--lenTest >= 2); -+ lenTest = lenTestTemp; -+ -+ if (repIndex == 0) -+ startLen = lenTest + 1; -+ -+ /* if (_maxMode) */ -+ { -+ UInt32 lenTest2 = lenTest + 1; -+ UInt32 limit = lenTest2 + p->numFastBytes; -+ UInt32 nextRepMatchPrice; -+ if (limit > numAvailFull) -+ limit = numAvailFull; -+ for (; lenTest2 < limit && data[lenTest2] == data2[lenTest2]; lenTest2++); -+ lenTest2 -= lenTest + 1; -+ if (lenTest2 >= 2) -+ { -+ UInt32 state2 = kRepNextStates[state]; -+ UInt32 posStateNext = (position + lenTest) & p->pbMask; -+ UInt32 curAndLenCharPrice = -+ price + p->repLenEnc.prices[posState][lenTest - 2] + -+ GET_PRICE_0(p->isMatch[state2][posStateNext]) + -+ LitEnc_GetPriceMatched(LIT_PROBS(position + lenTest, data[lenTest - 1]), -+ data[lenTest], data2[lenTest], p->ProbPrices); -+ state2 = kLiteralNextStates[state2]; -+ posStateNext = (position + lenTest + 1) & p->pbMask; -+ nextRepMatchPrice = curAndLenCharPrice + -+ GET_PRICE_1(p->isMatch[state2][posStateNext]) + -+ GET_PRICE_1(p->isRep[state2]); -+ -+ /* for (; lenTest2 >= 2; lenTest2--) */ -+ { -+ UInt32 curAndLenPrice; -+ COptimal *opt; -+ UInt32 offset = cur + lenTest + 1 + lenTest2; -+ while (lenEnd < offset) -+ p->opt[++lenEnd].price = kInfinityPrice; -+ curAndLenPrice = nextRepMatchPrice + GetRepPrice(p, 0, lenTest2, state2, posStateNext); -+ opt = &p->opt[offset]; -+ if (curAndLenPrice < opt->price) -+ { -+ opt->price = curAndLenPrice; -+ opt->posPrev = cur + lenTest + 1; -+ opt->backPrev = 0; -+ opt->prev1IsChar = True; -+ opt->prev2 = True; -+ opt->posPrev2 = cur; -+ opt->backPrev2 = repIndex; -+ } -+ } -+ } -+ } -+ } -+ } -+ /* for (UInt32 lenTest = 2; lenTest <= newLen; lenTest++) */ -+ if (newLen > numAvail) -+ { -+ newLen = numAvail; -+ for (numPairs = 0; newLen > matches[numPairs]; numPairs += 2); -+ matches[numPairs] = newLen; -+ numPairs += 2; -+ } -+ if (newLen >= startLen) -+ { -+ UInt32 normalMatchPrice = matchPrice + GET_PRICE_0(p->isRep[state]); -+ UInt32 offs, curBack, posSlot; -+ UInt32 lenTest; -+ while (lenEnd < cur + newLen) -+ p->opt[++lenEnd].price = kInfinityPrice; -+ -+ offs = 0; -+ while (startLen > matches[offs]) -+ offs += 2; -+ curBack = matches[offs + 1]; -+ GetPosSlot2(curBack, posSlot); -+ for (lenTest = /*2*/ startLen; ; lenTest++) -+ { -+ UInt32 curAndLenPrice = normalMatchPrice + p->lenEnc.prices[posState][lenTest - LZMA_MATCH_LEN_MIN]; -+ UInt32 lenToPosState = GetLenToPosState(lenTest); -+ COptimal *opt; -+ if (curBack < kNumFullDistances) -+ curAndLenPrice += p->distancesPrices[lenToPosState][curBack]; -+ else -+ curAndLenPrice += p->posSlotPrices[lenToPosState][posSlot] + p->alignPrices[curBack & kAlignMask]; -+ -+ opt = &p->opt[cur + lenTest]; -+ if (curAndLenPrice < opt->price) -+ { -+ opt->price = curAndLenPrice; -+ opt->posPrev = cur; -+ opt->backPrev = curBack + LZMA_NUM_REPS; -+ opt->prev1IsChar = False; -+ } -+ -+ if (/*_maxMode && */lenTest == matches[offs]) -+ { -+ /* Try Match + Literal + Rep0 */ -+ const Byte *data2 = data - (curBack + 1); -+ UInt32 lenTest2 = lenTest + 1; -+ UInt32 limit = lenTest2 + p->numFastBytes; -+ UInt32 nextRepMatchPrice; -+ if (limit > numAvailFull) -+ limit = numAvailFull; -+ for (; lenTest2 < limit && data[lenTest2] == data2[lenTest2]; lenTest2++); -+ lenTest2 -= lenTest + 1; -+ if (lenTest2 >= 2) -+ { -+ UInt32 state2 = kMatchNextStates[state]; -+ UInt32 posStateNext = (position + lenTest) & p->pbMask; -+ UInt32 curAndLenCharPrice = curAndLenPrice + -+ GET_PRICE_0(p->isMatch[state2][posStateNext]) + -+ LitEnc_GetPriceMatched(LIT_PROBS(position + lenTest, data[lenTest - 1]), -+ data[lenTest], data2[lenTest], p->ProbPrices); -+ state2 = kLiteralNextStates[state2]; -+ posStateNext = (posStateNext + 1) & p->pbMask; -+ nextRepMatchPrice = curAndLenCharPrice + -+ GET_PRICE_1(p->isMatch[state2][posStateNext]) + -+ GET_PRICE_1(p->isRep[state2]); -+ -+ /* for (; lenTest2 >= 2; lenTest2--) */ -+ { -+ UInt32 offset = cur + lenTest + 1 + lenTest2; -+ UInt32 curAndLenPrice; -+ COptimal *opt; -+ while (lenEnd < offset) -+ p->opt[++lenEnd].price = kInfinityPrice; -+ curAndLenPrice = nextRepMatchPrice + GetRepPrice(p, 0, lenTest2, state2, posStateNext); -+ opt = &p->opt[offset]; -+ if (curAndLenPrice < opt->price) -+ { -+ opt->price = curAndLenPrice; -+ opt->posPrev = cur + lenTest + 1; -+ opt->backPrev = 0; -+ opt->prev1IsChar = True; -+ opt->prev2 = True; -+ opt->posPrev2 = cur; -+ opt->backPrev2 = curBack + LZMA_NUM_REPS; -+ } -+ } -+ } -+ offs += 2; -+ if (offs == numPairs) -+ break; -+ curBack = matches[offs + 1]; -+ if (curBack >= kNumFullDistances) -+ GetPosSlot2(curBack, posSlot); -+ } -+ } -+ } -+ } -+} -+ -+#define ChangePair(smallDist, bigDist) (((bigDist) >> 7) > (smallDist)) -+ -+static UInt32 GetOptimumFast(CLzmaEnc *p, UInt32 *backRes) -+{ -+ UInt32 numAvail, mainLen, mainDist, numPairs, repIndex, repLen, i; -+ const Byte *data; -+ const UInt32 *matches; -+ -+ if (p->additionalOffset == 0) -+ mainLen = ReadMatchDistances(p, &numPairs); -+ else -+ { -+ mainLen = p->longestMatchLength; -+ numPairs = p->numPairs; -+ } -+ -+ numAvail = p->numAvail; -+ *backRes = (UInt32)-1; -+ if (numAvail < 2) -+ return 1; -+ if (numAvail > LZMA_MATCH_LEN_MAX) -+ numAvail = LZMA_MATCH_LEN_MAX; -+ data = p->matchFinder.GetPointerToCurrentPos(p->matchFinderObj) - 1; -+ -+ repLen = repIndex = 0; -+ for (i = 0; i < LZMA_NUM_REPS; i++) -+ { -+ UInt32 len; -+ const Byte *data2 = data - (p->reps[i] + 1); -+ if (data[0] != data2[0] || data[1] != data2[1]) -+ continue; -+ for (len = 2; len < numAvail && data[len] == data2[len]; len++); -+ if (len >= p->numFastBytes) -+ { -+ *backRes = i; -+ MovePos(p, len - 1); -+ return len; -+ } -+ if (len > repLen) -+ { -+ repIndex = i; -+ repLen = len; -+ } -+ } -+ -+ matches = p->matches; -+ if (mainLen >= p->numFastBytes) -+ { -+ *backRes = matches[numPairs - 1] + LZMA_NUM_REPS; -+ MovePos(p, mainLen - 1); -+ return mainLen; -+ } -+ -+ mainDist = 0; /* for GCC */ -+ if (mainLen >= 2) -+ { -+ mainDist = matches[numPairs - 1]; -+ while (numPairs > 2 && mainLen == matches[numPairs - 4] + 1) -+ { -+ if (!ChangePair(matches[numPairs - 3], mainDist)) -+ break; -+ numPairs -= 2; -+ mainLen = matches[numPairs - 2]; -+ mainDist = matches[numPairs - 1]; -+ } -+ if (mainLen == 2 && mainDist >= 0x80) -+ mainLen = 1; -+ } -+ -+ if (repLen >= 2 && ( -+ (repLen + 1 >= mainLen) || -+ (repLen + 2 >= mainLen && mainDist >= (1 << 9)) || -+ (repLen + 3 >= mainLen && mainDist >= (1 << 15)))) -+ { -+ *backRes = repIndex; -+ MovePos(p, repLen - 1); -+ return repLen; -+ } -+ -+ if (mainLen < 2 || numAvail <= 2) -+ return 1; -+ -+ p->longestMatchLength = ReadMatchDistances(p, &p->numPairs); -+ if (p->longestMatchLength >= 2) -+ { -+ UInt32 newDistance = matches[p->numPairs - 1]; -+ if ((p->longestMatchLength >= mainLen && newDistance < mainDist) || -+ (p->longestMatchLength == mainLen + 1 && !ChangePair(mainDist, newDistance)) || -+ (p->longestMatchLength > mainLen + 1) || -+ (p->longestMatchLength + 1 >= mainLen && mainLen >= 3 && ChangePair(newDistance, mainDist))) -+ return 1; -+ } -+ -+ data = p->matchFinder.GetPointerToCurrentPos(p->matchFinderObj) - 1; -+ for (i = 0; i < LZMA_NUM_REPS; i++) -+ { -+ UInt32 len, limit; -+ const Byte *data2 = data - (p->reps[i] + 1); -+ if (data[0] != data2[0] || data[1] != data2[1]) -+ continue; -+ limit = mainLen - 1; -+ for (len = 2; len < limit && data[len] == data2[len]; len++); -+ if (len >= limit) -+ return 1; -+ } -+ *backRes = mainDist + LZMA_NUM_REPS; -+ MovePos(p, mainLen - 2); -+ return mainLen; -+} -+ -+static void WriteEndMarker(CLzmaEnc *p, UInt32 posState) -+{ -+ UInt32 len; -+ RangeEnc_EncodeBit(&p->rc, &p->isMatch[p->state][posState], 1); -+ RangeEnc_EncodeBit(&p->rc, &p->isRep[p->state], 0); -+ p->state = kMatchNextStates[p->state]; -+ len = LZMA_MATCH_LEN_MIN; -+ LenEnc_Encode2(&p->lenEnc, &p->rc, len - LZMA_MATCH_LEN_MIN, posState, !p->fastMode, p->ProbPrices); -+ RcTree_Encode(&p->rc, p->posSlotEncoder[GetLenToPosState(len)], kNumPosSlotBits, (1 << kNumPosSlotBits) - 1); -+ RangeEnc_EncodeDirectBits(&p->rc, (((UInt32)1 << 30) - 1) >> kNumAlignBits, 30 - kNumAlignBits); -+ RcTree_ReverseEncode(&p->rc, p->posAlignEncoder, kNumAlignBits, kAlignMask); -+} -+ -+static SRes CheckErrors(CLzmaEnc *p) -+{ -+ if (p->result != SZ_OK) -+ return p->result; -+ if (p->rc.res != SZ_OK) -+ p->result = SZ_ERROR_WRITE; -+ if (p->matchFinderBase.result != SZ_OK) -+ p->result = SZ_ERROR_READ; -+ if (p->result != SZ_OK) -+ p->finished = True; -+ return p->result; -+} -+ -+static SRes Flush(CLzmaEnc *p, UInt32 nowPos) -+{ -+ /* ReleaseMFStream(); */ -+ p->finished = True; -+ if (p->writeEndMark) -+ WriteEndMarker(p, nowPos & p->pbMask); -+ RangeEnc_FlushData(&p->rc); -+ RangeEnc_FlushStream(&p->rc); -+ return CheckErrors(p); -+} -+ -+static void FillAlignPrices(CLzmaEnc *p) -+{ -+ UInt32 i; -+ for (i = 0; i < kAlignTableSize; i++) -+ p->alignPrices[i] = RcTree_ReverseGetPrice(p->posAlignEncoder, kNumAlignBits, i, p->ProbPrices); -+ p->alignPriceCount = 0; -+} -+ -+static void FillDistancesPrices(CLzmaEnc *p) -+{ -+ UInt32 tempPrices[kNumFullDistances]; -+ UInt32 i, lenToPosState; -+ for (i = kStartPosModelIndex; i < kNumFullDistances; i++) -+ { -+ UInt32 posSlot = GetPosSlot1(i); -+ UInt32 footerBits = ((posSlot >> 1) - 1); -+ UInt32 base = ((2 | (posSlot & 1)) << footerBits); -+ tempPrices[i] = RcTree_ReverseGetPrice(p->posEncoders + base - posSlot - 1, footerBits, i - base, p->ProbPrices); -+ } -+ -+ for (lenToPosState = 0; lenToPosState < kNumLenToPosStates; lenToPosState++) -+ { -+ UInt32 posSlot; -+ const CLzmaProb *encoder = p->posSlotEncoder[lenToPosState]; -+ UInt32 *posSlotPrices = p->posSlotPrices[lenToPosState]; -+ for (posSlot = 0; posSlot < p->distTableSize; posSlot++) -+ posSlotPrices[posSlot] = RcTree_GetPrice(encoder, kNumPosSlotBits, posSlot, p->ProbPrices); -+ for (posSlot = kEndPosModelIndex; posSlot < p->distTableSize; posSlot++) -+ posSlotPrices[posSlot] += ((((posSlot >> 1) - 1) - kNumAlignBits) << kNumBitPriceShiftBits); -+ -+ { -+ UInt32 *distancesPrices = p->distancesPrices[lenToPosState]; -+ UInt32 i; -+ for (i = 0; i < kStartPosModelIndex; i++) -+ distancesPrices[i] = posSlotPrices[i]; -+ for (; i < kNumFullDistances; i++) -+ distancesPrices[i] = posSlotPrices[GetPosSlot1(i)] + tempPrices[i]; -+ } -+ } -+ p->matchPriceCount = 0; -+} -+ -+void LzmaEnc_Construct(CLzmaEnc *p) -+{ -+ RangeEnc_Construct(&p->rc); -+ MatchFinder_Construct(&p->matchFinderBase); -+ #ifndef _7ZIP_ST -+ MatchFinderMt_Construct(&p->matchFinderMt); -+ p->matchFinderMt.MatchFinder = &p->matchFinderBase; -+ #endif -+ -+ { -+ CLzmaEncProps props; -+ LzmaEncProps_Init(&props); -+ LzmaEnc_SetProps(p, &props); -+ } -+ -+ #ifndef LZMA_LOG_BSR -+ LzmaEnc_FastPosInit(p->g_FastPos); -+ #endif -+ -+ LzmaEnc_InitPriceTables(p->ProbPrices); -+ p->litProbs = 0; -+ p->saveState.litProbs = 0; -+} -+ -+CLzmaEncHandle LzmaEnc_Create(ISzAlloc *alloc) -+{ -+ void *p; -+ p = alloc->Alloc(alloc, sizeof(CLzmaEnc)); -+ if (p != 0) -+ LzmaEnc_Construct((CLzmaEnc *)p); -+ return p; -+} -+ -+void LzmaEnc_FreeLits(CLzmaEnc *p, ISzAlloc *alloc) -+{ -+ alloc->Free(alloc, p->litProbs); -+ alloc->Free(alloc, p->saveState.litProbs); -+ p->litProbs = 0; -+ p->saveState.litProbs = 0; -+} -+ -+void LzmaEnc_Destruct(CLzmaEnc *p, ISzAlloc *alloc, ISzAlloc *allocBig) -+{ -+ #ifndef _7ZIP_ST -+ MatchFinderMt_Destruct(&p->matchFinderMt, allocBig); -+ #endif -+ MatchFinder_Free(&p->matchFinderBase, allocBig); -+ LzmaEnc_FreeLits(p, alloc); -+ RangeEnc_Free(&p->rc, alloc); -+} -+ -+void LzmaEnc_Destroy(CLzmaEncHandle p, ISzAlloc *alloc, ISzAlloc *allocBig) -+{ -+ LzmaEnc_Destruct((CLzmaEnc *)p, alloc, allocBig); -+ alloc->Free(alloc, p); -+} -+ -+static SRes LzmaEnc_CodeOneBlock(CLzmaEnc *p, Bool useLimits, UInt32 maxPackSize, UInt32 maxUnpackSize) -+{ -+ UInt32 nowPos32, startPos32; -+ if (p->needInit) -+ { -+ p->matchFinder.Init(p->matchFinderObj); -+ p->needInit = 0; -+ } -+ -+ if (p->finished) -+ return p->result; -+ RINOK(CheckErrors(p)); -+ -+ nowPos32 = (UInt32)p->nowPos64; -+ startPos32 = nowPos32; -+ -+ if (p->nowPos64 == 0) -+ { -+ UInt32 numPairs; -+ Byte curByte; -+ if (p->matchFinder.GetNumAvailableBytes(p->matchFinderObj) == 0) -+ return Flush(p, nowPos32); -+ ReadMatchDistances(p, &numPairs); -+ RangeEnc_EncodeBit(&p->rc, &p->isMatch[p->state][0], 0); -+ p->state = kLiteralNextStates[p->state]; -+ curByte = p->matchFinder.GetIndexByte(p->matchFinderObj, 0 - p->additionalOffset); -+ LitEnc_Encode(&p->rc, p->litProbs, curByte); -+ p->additionalOffset--; -+ nowPos32++; -+ } -+ -+ if (p->matchFinder.GetNumAvailableBytes(p->matchFinderObj) != 0) -+ for (;;) -+ { -+ UInt32 pos, len, posState; -+ -+ if (p->fastMode) -+ len = GetOptimumFast(p, &pos); -+ else -+ len = GetOptimum(p, nowPos32, &pos); -+ -+ #ifdef SHOW_STAT2 -+ printf("\n pos = %4X, len = %d pos = %d", nowPos32, len, pos); -+ #endif -+ -+ posState = nowPos32 & p->pbMask; -+ if (len == 1 && pos == (UInt32)-1) -+ { -+ Byte curByte; -+ CLzmaProb *probs; -+ const Byte *data; -+ -+ RangeEnc_EncodeBit(&p->rc, &p->isMatch[p->state][posState], 0); -+ data = p->matchFinder.GetPointerToCurrentPos(p->matchFinderObj) - p->additionalOffset; -+ curByte = *data; -+ probs = LIT_PROBS(nowPos32, *(data - 1)); -+ if (IsCharState(p->state)) -+ LitEnc_Encode(&p->rc, probs, curByte); -+ else -+ LitEnc_EncodeMatched(&p->rc, probs, curByte, *(data - p->reps[0] - 1)); -+ p->state = kLiteralNextStates[p->state]; -+ } -+ else -+ { -+ RangeEnc_EncodeBit(&p->rc, &p->isMatch[p->state][posState], 1); -+ if (pos < LZMA_NUM_REPS) -+ { -+ RangeEnc_EncodeBit(&p->rc, &p->isRep[p->state], 1); -+ if (pos == 0) -+ { -+ RangeEnc_EncodeBit(&p->rc, &p->isRepG0[p->state], 0); -+ RangeEnc_EncodeBit(&p->rc, &p->isRep0Long[p->state][posState], ((len == 1) ? 0 : 1)); -+ } -+ else -+ { -+ UInt32 distance = p->reps[pos]; -+ RangeEnc_EncodeBit(&p->rc, &p->isRepG0[p->state], 1); -+ if (pos == 1) -+ RangeEnc_EncodeBit(&p->rc, &p->isRepG1[p->state], 0); -+ else -+ { -+ RangeEnc_EncodeBit(&p->rc, &p->isRepG1[p->state], 1); -+ RangeEnc_EncodeBit(&p->rc, &p->isRepG2[p->state], pos - 2); -+ if (pos == 3) -+ p->reps[3] = p->reps[2]; -+ p->reps[2] = p->reps[1]; -+ } -+ p->reps[1] = p->reps[0]; -+ p->reps[0] = distance; -+ } -+ if (len == 1) -+ p->state = kShortRepNextStates[p->state]; -+ else -+ { -+ LenEnc_Encode2(&p->repLenEnc, &p->rc, len - LZMA_MATCH_LEN_MIN, posState, !p->fastMode, p->ProbPrices); -+ p->state = kRepNextStates[p->state]; -+ } -+ } -+ else -+ { -+ UInt32 posSlot; -+ RangeEnc_EncodeBit(&p->rc, &p->isRep[p->state], 0); -+ p->state = kMatchNextStates[p->state]; -+ LenEnc_Encode2(&p->lenEnc, &p->rc, len - LZMA_MATCH_LEN_MIN, posState, !p->fastMode, p->ProbPrices); -+ pos -= LZMA_NUM_REPS; -+ GetPosSlot(pos, posSlot); -+ RcTree_Encode(&p->rc, p->posSlotEncoder[GetLenToPosState(len)], kNumPosSlotBits, posSlot); -+ -+ if (posSlot >= kStartPosModelIndex) -+ { -+ UInt32 footerBits = ((posSlot >> 1) - 1); -+ UInt32 base = ((2 | (posSlot & 1)) << footerBits); -+ UInt32 posReduced = pos - base; -+ -+ if (posSlot < kEndPosModelIndex) -+ RcTree_ReverseEncode(&p->rc, p->posEncoders + base - posSlot - 1, footerBits, posReduced); -+ else -+ { -+ RangeEnc_EncodeDirectBits(&p->rc, posReduced >> kNumAlignBits, footerBits - kNumAlignBits); -+ RcTree_ReverseEncode(&p->rc, p->posAlignEncoder, kNumAlignBits, posReduced & kAlignMask); -+ p->alignPriceCount++; -+ } -+ } -+ p->reps[3] = p->reps[2]; -+ p->reps[2] = p->reps[1]; -+ p->reps[1] = p->reps[0]; -+ p->reps[0] = pos; -+ p->matchPriceCount++; -+ } -+ } -+ p->additionalOffset -= len; -+ nowPos32 += len; -+ if (p->additionalOffset == 0) -+ { -+ UInt32 processed; -+ if (!p->fastMode) -+ { -+ if (p->matchPriceCount >= (1 << 7)) -+ FillDistancesPrices(p); -+ if (p->alignPriceCount >= kAlignTableSize) -+ FillAlignPrices(p); -+ } -+ if (p->matchFinder.GetNumAvailableBytes(p->matchFinderObj) == 0) -+ break; -+ processed = nowPos32 - startPos32; -+ if (useLimits) -+ { -+ if (processed + kNumOpts + 300 >= maxUnpackSize || -+ RangeEnc_GetProcessed(&p->rc) + kNumOpts * 2 >= maxPackSize) -+ break; -+ } -+ else if (processed >= (1 << 15)) -+ { -+ p->nowPos64 += nowPos32 - startPos32; -+ return CheckErrors(p); -+ } -+ } -+ } -+ p->nowPos64 += nowPos32 - startPos32; -+ return Flush(p, nowPos32); -+} -+ -+#define kBigHashDicLimit ((UInt32)1 << 24) -+ -+static SRes LzmaEnc_Alloc(CLzmaEnc *p, UInt32 keepWindowSize, ISzAlloc *alloc, ISzAlloc *allocBig) -+{ -+ UInt32 beforeSize = kNumOpts; -+ Bool btMode; -+ if (!RangeEnc_Alloc(&p->rc, alloc)) -+ return SZ_ERROR_MEM; -+ btMode = (p->matchFinderBase.btMode != 0); -+ #ifndef _7ZIP_ST -+ p->mtMode = (p->multiThread && !p->fastMode && btMode); -+ #endif -+ -+ { -+ unsigned lclp = p->lc + p->lp; -+ if (p->litProbs == 0 || p->saveState.litProbs == 0 || p->lclp != lclp) -+ { -+ LzmaEnc_FreeLits(p, alloc); -+ p->litProbs = (CLzmaProb *)alloc->Alloc(alloc, (0x300 << lclp) * sizeof(CLzmaProb)); -+ p->saveState.litProbs = (CLzmaProb *)alloc->Alloc(alloc, (0x300 << lclp) * sizeof(CLzmaProb)); -+ if (p->litProbs == 0 || p->saveState.litProbs == 0) -+ { -+ LzmaEnc_FreeLits(p, alloc); -+ return SZ_ERROR_MEM; -+ } -+ p->lclp = lclp; -+ } -+ } -+ -+ p->matchFinderBase.bigHash = (p->dictSize > kBigHashDicLimit); -+ -+ if (beforeSize + p->dictSize < keepWindowSize) -+ beforeSize = keepWindowSize - p->dictSize; -+ -+ #ifndef _7ZIP_ST -+ if (p->mtMode) -+ { -+ RINOK(MatchFinderMt_Create(&p->matchFinderMt, p->dictSize, beforeSize, p->numFastBytes, LZMA_MATCH_LEN_MAX, allocBig)); -+ p->matchFinderObj = &p->matchFinderMt; -+ MatchFinderMt_CreateVTable(&p->matchFinderMt, &p->matchFinder); -+ } -+ else -+ #endif -+ { -+ if (!MatchFinder_Create(&p->matchFinderBase, p->dictSize, beforeSize, p->numFastBytes, LZMA_MATCH_LEN_MAX, allocBig)) -+ return SZ_ERROR_MEM; -+ p->matchFinderObj = &p->matchFinderBase; -+ MatchFinder_CreateVTable(&p->matchFinderBase, &p->matchFinder); -+ } -+ return SZ_OK; -+} -+ -+void LzmaEnc_Init(CLzmaEnc *p) -+{ -+ UInt32 i; -+ p->state = 0; -+ for (i = 0 ; i < LZMA_NUM_REPS; i++) -+ p->reps[i] = 0; -+ -+ RangeEnc_Init(&p->rc); -+ -+ -+ for (i = 0; i < kNumStates; i++) -+ { -+ UInt32 j; -+ for (j = 0; j < LZMA_NUM_PB_STATES_MAX; j++) -+ { -+ p->isMatch[i][j] = kProbInitValue; -+ p->isRep0Long[i][j] = kProbInitValue; -+ } -+ p->isRep[i] = kProbInitValue; -+ p->isRepG0[i] = kProbInitValue; -+ p->isRepG1[i] = kProbInitValue; -+ p->isRepG2[i] = kProbInitValue; -+ } -+ -+ { -+ UInt32 num = 0x300 << (p->lp + p->lc); -+ for (i = 0; i < num; i++) -+ p->litProbs[i] = kProbInitValue; -+ } -+ -+ { -+ for (i = 0; i < kNumLenToPosStates; i++) -+ { -+ CLzmaProb *probs = p->posSlotEncoder[i]; -+ UInt32 j; -+ for (j = 0; j < (1 << kNumPosSlotBits); j++) -+ probs[j] = kProbInitValue; -+ } -+ } -+ { -+ for (i = 0; i < kNumFullDistances - kEndPosModelIndex; i++) -+ p->posEncoders[i] = kProbInitValue; -+ } -+ -+ LenEnc_Init(&p->lenEnc.p); -+ LenEnc_Init(&p->repLenEnc.p); -+ -+ for (i = 0; i < (1 << kNumAlignBits); i++) -+ p->posAlignEncoder[i] = kProbInitValue; -+ -+ p->optimumEndIndex = 0; -+ p->optimumCurrentIndex = 0; -+ p->additionalOffset = 0; -+ -+ p->pbMask = (1 << p->pb) - 1; -+ p->lpMask = (1 << p->lp) - 1; -+} -+ -+void LzmaEnc_InitPrices(CLzmaEnc *p) -+{ -+ if (!p->fastMode) -+ { -+ FillDistancesPrices(p); -+ FillAlignPrices(p); -+ } -+ -+ p->lenEnc.tableSize = -+ p->repLenEnc.tableSize = -+ p->numFastBytes + 1 - LZMA_MATCH_LEN_MIN; -+ LenPriceEnc_UpdateTables(&p->lenEnc, 1 << p->pb, p->ProbPrices); -+ LenPriceEnc_UpdateTables(&p->repLenEnc, 1 << p->pb, p->ProbPrices); -+} -+ -+static SRes LzmaEnc_AllocAndInit(CLzmaEnc *p, UInt32 keepWindowSize, ISzAlloc *alloc, ISzAlloc *allocBig) -+{ -+ UInt32 i; -+ for (i = 0; i < (UInt32)kDicLogSizeMaxCompress; i++) -+ if (p->dictSize <= ((UInt32)1 << i)) -+ break; -+ p->distTableSize = i * 2; -+ -+ p->finished = False; -+ p->result = SZ_OK; -+ RINOK(LzmaEnc_Alloc(p, keepWindowSize, alloc, allocBig)); -+ LzmaEnc_Init(p); -+ LzmaEnc_InitPrices(p); -+ p->nowPos64 = 0; -+ return SZ_OK; -+} -+ -+static SRes LzmaEnc_Prepare(CLzmaEncHandle pp, ISeqOutStream *outStream, ISeqInStream *inStream, -+ ISzAlloc *alloc, ISzAlloc *allocBig) -+{ -+ CLzmaEnc *p = (CLzmaEnc *)pp; -+ p->matchFinderBase.stream = inStream; -+ p->needInit = 1; -+ p->rc.outStream = outStream; -+ return LzmaEnc_AllocAndInit(p, 0, alloc, allocBig); -+} -+ -+SRes LzmaEnc_PrepareForLzma2(CLzmaEncHandle pp, -+ ISeqInStream *inStream, UInt32 keepWindowSize, -+ ISzAlloc *alloc, ISzAlloc *allocBig) -+{ -+ CLzmaEnc *p = (CLzmaEnc *)pp; -+ p->matchFinderBase.stream = inStream; -+ p->needInit = 1; -+ return LzmaEnc_AllocAndInit(p, keepWindowSize, alloc, allocBig); -+} -+ -+static void LzmaEnc_SetInputBuf(CLzmaEnc *p, const Byte *src, SizeT srcLen) -+{ -+ p->matchFinderBase.directInput = 1; -+ p->matchFinderBase.bufferBase = (Byte *)src; -+ p->matchFinderBase.directInputRem = srcLen; -+} -+ -+SRes LzmaEnc_MemPrepare(CLzmaEncHandle pp, const Byte *src, SizeT srcLen, -+ UInt32 keepWindowSize, ISzAlloc *alloc, ISzAlloc *allocBig) -+{ -+ CLzmaEnc *p = (CLzmaEnc *)pp; -+ LzmaEnc_SetInputBuf(p, src, srcLen); -+ p->needInit = 1; -+ -+ return LzmaEnc_AllocAndInit(p, keepWindowSize, alloc, allocBig); -+} -+ -+void LzmaEnc_Finish(CLzmaEncHandle pp) -+{ -+ #ifndef _7ZIP_ST -+ CLzmaEnc *p = (CLzmaEnc *)pp; -+ if (p->mtMode) -+ MatchFinderMt_ReleaseStream(&p->matchFinderMt); -+ #else -+ pp = pp; -+ #endif -+} -+ -+typedef struct -+{ -+ ISeqOutStream funcTable; -+ Byte *data; -+ SizeT rem; -+ Bool overflow; -+} CSeqOutStreamBuf; -+ -+static size_t MyWrite(void *pp, const void *data, size_t size) -+{ -+ CSeqOutStreamBuf *p = (CSeqOutStreamBuf *)pp; -+ if (p->rem < size) -+ { -+ size = p->rem; -+ p->overflow = True; -+ } -+ memcpy(p->data, data, size); -+ p->rem -= size; -+ p->data += size; -+ return size; -+} -+ -+ -+UInt32 LzmaEnc_GetNumAvailableBytes(CLzmaEncHandle pp) -+{ -+ const CLzmaEnc *p = (CLzmaEnc *)pp; -+ return p->matchFinder.GetNumAvailableBytes(p->matchFinderObj); -+} -+ -+const Byte *LzmaEnc_GetCurBuf(CLzmaEncHandle pp) -+{ -+ const CLzmaEnc *p = (CLzmaEnc *)pp; -+ return p->matchFinder.GetPointerToCurrentPos(p->matchFinderObj) - p->additionalOffset; -+} -+ -+SRes LzmaEnc_CodeOneMemBlock(CLzmaEncHandle pp, Bool reInit, -+ Byte *dest, size_t *destLen, UInt32 desiredPackSize, UInt32 *unpackSize) -+{ -+ CLzmaEnc *p = (CLzmaEnc *)pp; -+ UInt64 nowPos64; -+ SRes res; -+ CSeqOutStreamBuf outStream; -+ -+ outStream.funcTable.Write = MyWrite; -+ outStream.data = dest; -+ outStream.rem = *destLen; -+ outStream.overflow = False; -+ -+ p->writeEndMark = False; -+ p->finished = False; -+ p->result = SZ_OK; -+ -+ if (reInit) -+ LzmaEnc_Init(p); -+ LzmaEnc_InitPrices(p); -+ nowPos64 = p->nowPos64; -+ RangeEnc_Init(&p->rc); -+ p->rc.outStream = &outStream.funcTable; -+ -+ res = LzmaEnc_CodeOneBlock(p, True, desiredPackSize, *unpackSize); -+ -+ *unpackSize = (UInt32)(p->nowPos64 - nowPos64); -+ *destLen -= outStream.rem; -+ if (outStream.overflow) -+ return SZ_ERROR_OUTPUT_EOF; -+ -+ return res; -+} -+ -+static SRes LzmaEnc_Encode2(CLzmaEnc *p, ICompressProgress *progress) -+{ -+ SRes res = SZ_OK; -+ -+ #ifndef _7ZIP_ST -+ Byte allocaDummy[0x300]; -+ int i = 0; -+ for (i = 0; i < 16; i++) -+ allocaDummy[i] = (Byte)i; -+ #endif -+ -+ for (;;) -+ { -+ res = LzmaEnc_CodeOneBlock(p, False, 0, 0); -+ if (res != SZ_OK || p->finished != 0) -+ break; -+ if (progress != 0) -+ { -+ res = progress->Progress(progress, p->nowPos64, RangeEnc_GetProcessed(&p->rc)); -+ if (res != SZ_OK) -+ { -+ res = SZ_ERROR_PROGRESS; -+ break; -+ } -+ } -+ } -+ LzmaEnc_Finish(p); -+ return res; -+} -+ -+SRes LzmaEnc_Encode(CLzmaEncHandle pp, ISeqOutStream *outStream, ISeqInStream *inStream, ICompressProgress *progress, -+ ISzAlloc *alloc, ISzAlloc *allocBig) -+{ -+ RINOK(LzmaEnc_Prepare(pp, outStream, inStream, alloc, allocBig)); -+ return LzmaEnc_Encode2((CLzmaEnc *)pp, progress); -+} -+ -+SRes LzmaEnc_WriteProperties(CLzmaEncHandle pp, Byte *props, SizeT *size) -+{ -+ CLzmaEnc *p = (CLzmaEnc *)pp; -+ int i; -+ UInt32 dictSize = p->dictSize; -+ if (*size < LZMA_PROPS_SIZE) -+ return SZ_ERROR_PARAM; -+ *size = LZMA_PROPS_SIZE; -+ props[0] = (Byte)((p->pb * 5 + p->lp) * 9 + p->lc); -+ -+ for (i = 11; i <= 30; i++) -+ { -+ if (dictSize <= ((UInt32)2 << i)) -+ { -+ dictSize = (2 << i); -+ break; -+ } -+ if (dictSize <= ((UInt32)3 << i)) -+ { -+ dictSize = (3 << i); -+ break; -+ } -+ } -+ -+ for (i = 0; i < 4; i++) -+ props[1 + i] = (Byte)(dictSize >> (8 * i)); -+ return SZ_OK; -+} -+ -+SRes LzmaEnc_MemEncode(CLzmaEncHandle pp, Byte *dest, SizeT *destLen, const Byte *src, SizeT srcLen, -+ int writeEndMark, ICompressProgress *progress, ISzAlloc *alloc, ISzAlloc *allocBig) -+{ -+ SRes res; -+ CLzmaEnc *p = (CLzmaEnc *)pp; -+ -+ CSeqOutStreamBuf outStream; -+ -+ LzmaEnc_SetInputBuf(p, src, srcLen); -+ -+ outStream.funcTable.Write = MyWrite; -+ outStream.data = dest; -+ outStream.rem = *destLen; -+ outStream.overflow = False; -+ -+ p->writeEndMark = writeEndMark; -+ -+ p->rc.outStream = &outStream.funcTable; -+ res = LzmaEnc_MemPrepare(pp, src, srcLen, 0, alloc, allocBig); -+ if (res == SZ_OK) -+ res = LzmaEnc_Encode2(p, progress); -+ -+ *destLen -= outStream.rem; -+ if (outStream.overflow) -+ return SZ_ERROR_OUTPUT_EOF; -+ return res; -+} -+ -+SRes LzmaEncode(Byte *dest, SizeT *destLen, const Byte *src, SizeT srcLen, -+ const CLzmaEncProps *props, Byte *propsEncoded, SizeT *propsSize, int writeEndMark, -+ ICompressProgress *progress, ISzAlloc *alloc, ISzAlloc *allocBig) -+{ -+ CLzmaEnc *p = (CLzmaEnc *)LzmaEnc_Create(alloc); -+ SRes res; -+ if (p == 0) -+ return SZ_ERROR_MEM; -+ -+ res = LzmaEnc_SetProps(p, props); -+ if (res == SZ_OK) -+ { -+ res = LzmaEnc_WriteProperties(p, propsEncoded, propsSize); -+ if (res == SZ_OK) -+ res = LzmaEnc_MemEncode(p, dest, destLen, src, srcLen, -+ writeEndMark, progress, alloc, allocBig); -+ } -+ -+ LzmaEnc_Destroy(p, alloc, allocBig); -+ return res; -+} ---- /dev/null -+++ b/lib/lzma/Makefile -@@ -0,0 +1,7 @@ -+lzma_compress-objs := LzFind.o LzmaEnc.o -+lzma_decompress-objs := LzmaDec.o -+ -+obj-$(CONFIG_LZMA_COMPRESS) += lzma_compress.o -+obj-$(CONFIG_LZMA_DECOMPRESS) += lzma_decompress.o -+ -+EXTRA_CFLAGS += -Iinclude/linux -Iinclude/linux/lzma -include types.h diff --git a/target/linux/generic/patches-2.6.39/009-decompress_unlzo_fix.patch b/target/linux/generic/patches-2.6.39/009-decompress_unlzo_fix.patch deleted file mode 100644 index ee7c118ef06..00000000000 --- a/target/linux/generic/patches-2.6.39/009-decompress_unlzo_fix.patch +++ /dev/null @@ -1,23 +0,0 @@ ---- /dev/null -+++ b/include/linux/decompress/unlzo_mm.h -@@ -0,0 +1,10 @@ -+#ifndef UNLZO_MM_H -+#define UNLZO_MM_H -+ -+#ifdef STATIC -+#define INIT -+#else -+#define INIT __init -+#endif -+ -+#endif ---- a/lib/decompress_unlzo.c -+++ b/lib/decompress_unlzo.c -@@ -38,6 +38,7 @@ - - #include - #include -+#include - #include - - #include diff --git a/target/linux/generic/patches-2.6.39/010-debloat_lzma.patch b/target/linux/generic/patches-2.6.39/010-debloat_lzma.patch deleted file mode 100644 index 18e4a51ee35..00000000000 --- a/target/linux/generic/patches-2.6.39/010-debloat_lzma.patch +++ /dev/null @@ -1,485 +0,0 @@ ---- a/include/linux/lzma/LzmaDec.h -+++ b/include/linux/lzma/LzmaDec.h -@@ -31,14 +31,6 @@ typedef struct _CLzmaProps - UInt32 dicSize; - } CLzmaProps; - --/* LzmaProps_Decode - decodes properties --Returns: -- SZ_OK -- SZ_ERROR_UNSUPPORTED - Unsupported properties --*/ -- --SRes LzmaProps_Decode(CLzmaProps *p, const Byte *data, unsigned size); -- - - /* ---------- LZMA Decoder state ---------- */ - -@@ -70,8 +62,6 @@ typedef struct - - #define LzmaDec_Construct(p) { (p)->dic = 0; (p)->probs = 0; } - --void LzmaDec_Init(CLzmaDec *p); -- - /* There are two types of LZMA streams: - 0) Stream with end mark. That end mark adds about 6 bytes to compressed size. - 1) Stream without end mark. You must know exact uncompressed size to decompress such stream. */ -@@ -108,97 +98,6 @@ typedef enum - - /* ELzmaStatus is used only as output value for function call */ - -- --/* ---------- Interfaces ---------- */ -- --/* There are 3 levels of interfaces: -- 1) Dictionary Interface -- 2) Buffer Interface -- 3) One Call Interface -- You can select any of these interfaces, but don't mix functions from different -- groups for same object. */ -- -- --/* There are two variants to allocate state for Dictionary Interface: -- 1) LzmaDec_Allocate / LzmaDec_Free -- 2) LzmaDec_AllocateProbs / LzmaDec_FreeProbs -- You can use variant 2, if you set dictionary buffer manually. -- For Buffer Interface you must always use variant 1. -- --LzmaDec_Allocate* can return: -- SZ_OK -- SZ_ERROR_MEM - Memory allocation error -- SZ_ERROR_UNSUPPORTED - Unsupported properties --*/ -- --SRes LzmaDec_AllocateProbs(CLzmaDec *p, const Byte *props, unsigned propsSize, ISzAlloc *alloc); --void LzmaDec_FreeProbs(CLzmaDec *p, ISzAlloc *alloc); -- --SRes LzmaDec_Allocate(CLzmaDec *state, const Byte *prop, unsigned propsSize, ISzAlloc *alloc); --void LzmaDec_Free(CLzmaDec *state, ISzAlloc *alloc); -- --/* ---------- Dictionary Interface ---------- */ -- --/* You can use it, if you want to eliminate the overhead for data copying from -- dictionary to some other external buffer. -- You must work with CLzmaDec variables directly in this interface. -- -- STEPS: -- LzmaDec_Constr() -- LzmaDec_Allocate() -- for (each new stream) -- { -- LzmaDec_Init() -- while (it needs more decompression) -- { -- LzmaDec_DecodeToDic() -- use data from CLzmaDec::dic and update CLzmaDec::dicPos -- } -- } -- LzmaDec_Free() --*/ -- --/* LzmaDec_DecodeToDic -- -- The decoding to internal dictionary buffer (CLzmaDec::dic). -- You must manually update CLzmaDec::dicPos, if it reaches CLzmaDec::dicBufSize !!! -- --finishMode: -- It has meaning only if the decoding reaches output limit (dicLimit). -- LZMA_FINISH_ANY - Decode just dicLimit bytes. -- LZMA_FINISH_END - Stream must be finished after dicLimit. -- --Returns: -- SZ_OK -- status: -- LZMA_STATUS_FINISHED_WITH_MARK -- LZMA_STATUS_NOT_FINISHED -- LZMA_STATUS_NEEDS_MORE_INPUT -- LZMA_STATUS_MAYBE_FINISHED_WITHOUT_MARK -- SZ_ERROR_DATA - Data error --*/ -- --SRes LzmaDec_DecodeToDic(CLzmaDec *p, SizeT dicLimit, -- const Byte *src, SizeT *srcLen, ELzmaFinishMode finishMode, ELzmaStatus *status); -- -- --/* ---------- Buffer Interface ---------- */ -- --/* It's zlib-like interface. -- See LzmaDec_DecodeToDic description for information about STEPS and return results, -- but you must use LzmaDec_DecodeToBuf instead of LzmaDec_DecodeToDic and you don't need -- to work with CLzmaDec variables manually. -- --finishMode: -- It has meaning only if the decoding reaches output limit (*destLen). -- LZMA_FINISH_ANY - Decode just destLen bytes. -- LZMA_FINISH_END - Stream must be finished after (*destLen). --*/ -- --SRes LzmaDec_DecodeToBuf(CLzmaDec *p, Byte *dest, SizeT *destLen, -- const Byte *src, SizeT *srcLen, ELzmaFinishMode finishMode, ELzmaStatus *status); -- -- - /* ---------- One Call Interface ---------- */ - - /* LzmaDecode ---- a/lib/lzma/LzmaDec.c -+++ b/lib/lzma/LzmaDec.c -@@ -682,7 +682,7 @@ static void LzmaDec_InitRc(CLzmaDec *p, - p->needFlush = 0; - } - --void LzmaDec_InitDicAndState(CLzmaDec *p, Bool initDic, Bool initState) -+static void LzmaDec_InitDicAndState(CLzmaDec *p, Bool initDic, Bool initState) - { - p->needFlush = 1; - p->remainLen = 0; -@@ -698,7 +698,7 @@ void LzmaDec_InitDicAndState(CLzmaDec *p - p->needInitState = 1; - } - --void LzmaDec_Init(CLzmaDec *p) -+static void LzmaDec_Init(CLzmaDec *p) - { - p->dicPos = 0; - LzmaDec_InitDicAndState(p, True, True); -@@ -716,7 +716,7 @@ static void LzmaDec_InitStateReal(CLzmaD - p->needInitState = 0; - } - --SRes LzmaDec_DecodeToDic(CLzmaDec *p, SizeT dicLimit, const Byte *src, SizeT *srcLen, -+static SRes LzmaDec_DecodeToDic(CLzmaDec *p, SizeT dicLimit, const Byte *src, SizeT *srcLen, - ELzmaFinishMode finishMode, ELzmaStatus *status) - { - SizeT inSize = *srcLen; -@@ -837,7 +837,7 @@ SRes LzmaDec_DecodeToDic(CLzmaDec *p, Si - return (p->code == 0) ? SZ_OK : SZ_ERROR_DATA; - } - --SRes LzmaDec_DecodeToBuf(CLzmaDec *p, Byte *dest, SizeT *destLen, const Byte *src, SizeT *srcLen, ELzmaFinishMode finishMode, ELzmaStatus *status) -+static __maybe_unused SRes LzmaDec_DecodeToBuf(CLzmaDec *p, Byte *dest, SizeT *destLen, const Byte *src, SizeT *srcLen, ELzmaFinishMode finishMode, ELzmaStatus *status) - { - SizeT outSize = *destLen; - SizeT inSize = *srcLen; -@@ -877,7 +877,7 @@ SRes LzmaDec_DecodeToBuf(CLzmaDec *p, By - } - } - --void LzmaDec_FreeProbs(CLzmaDec *p, ISzAlloc *alloc) -+static void LzmaDec_FreeProbs(CLzmaDec *p, ISzAlloc *alloc) - { - alloc->Free(alloc, p->probs); - p->probs = 0; -@@ -889,13 +889,13 @@ static void LzmaDec_FreeDict(CLzmaDec *p - p->dic = 0; - } - --void LzmaDec_Free(CLzmaDec *p, ISzAlloc *alloc) -+static void __maybe_unused LzmaDec_Free(CLzmaDec *p, ISzAlloc *alloc) - { - LzmaDec_FreeProbs(p, alloc); - LzmaDec_FreeDict(p, alloc); - } - --SRes LzmaProps_Decode(CLzmaProps *p, const Byte *data, unsigned size) -+static SRes LzmaProps_Decode(CLzmaProps *p, const Byte *data, unsigned size) - { - UInt32 dicSize; - Byte d; -@@ -935,7 +935,7 @@ static SRes LzmaDec_AllocateProbs2(CLzma - return SZ_OK; - } - --SRes LzmaDec_AllocateProbs(CLzmaDec *p, const Byte *props, unsigned propsSize, ISzAlloc *alloc) -+static SRes __maybe_unused LzmaDec_AllocateProbs(CLzmaDec *p, const Byte *props, unsigned propsSize, ISzAlloc *alloc) - { - CLzmaProps propNew; - RINOK(LzmaProps_Decode(&propNew, props, propsSize)); -@@ -944,7 +944,7 @@ SRes LzmaDec_AllocateProbs(CLzmaDec *p, - return SZ_OK; - } - --SRes LzmaDec_Allocate(CLzmaDec *p, const Byte *props, unsigned propsSize, ISzAlloc *alloc) -+static SRes __maybe_unused LzmaDec_Allocate(CLzmaDec *p, const Byte *props, unsigned propsSize, ISzAlloc *alloc) - { - CLzmaProps propNew; - SizeT dicBufSize; ---- a/include/linux/lzma/LzmaEnc.h -+++ b/include/linux/lzma/LzmaEnc.h -@@ -31,9 +31,6 @@ typedef struct _CLzmaEncProps - } CLzmaEncProps; - - void LzmaEncProps_Init(CLzmaEncProps *p); --void LzmaEncProps_Normalize(CLzmaEncProps *p); --UInt32 LzmaEncProps_GetDictSize(const CLzmaEncProps *props2); -- - - /* ---------- CLzmaEncHandle Interface ---------- */ - -@@ -53,26 +50,9 @@ CLzmaEncHandle LzmaEnc_Create(ISzAlloc * - void LzmaEnc_Destroy(CLzmaEncHandle p, ISzAlloc *alloc, ISzAlloc *allocBig); - SRes LzmaEnc_SetProps(CLzmaEncHandle p, const CLzmaEncProps *props); - SRes LzmaEnc_WriteProperties(CLzmaEncHandle p, Byte *properties, SizeT *size); --SRes LzmaEnc_Encode(CLzmaEncHandle p, ISeqOutStream *outStream, ISeqInStream *inStream, -- ICompressProgress *progress, ISzAlloc *alloc, ISzAlloc *allocBig); - SRes LzmaEnc_MemEncode(CLzmaEncHandle p, Byte *dest, SizeT *destLen, const Byte *src, SizeT srcLen, - int writeEndMark, ICompressProgress *progress, ISzAlloc *alloc, ISzAlloc *allocBig); - --/* ---------- One Call Interface ---------- */ -- --/* LzmaEncode --Return code: -- SZ_OK - OK -- SZ_ERROR_MEM - Memory allocation error -- SZ_ERROR_PARAM - Incorrect paramater -- SZ_ERROR_OUTPUT_EOF - output buffer overflow -- SZ_ERROR_THREAD - errors in multithreading functions (only for Mt version) --*/ -- --SRes LzmaEncode(Byte *dest, SizeT *destLen, const Byte *src, SizeT srcLen, -- const CLzmaEncProps *props, Byte *propsEncoded, SizeT *propsSize, int writeEndMark, -- ICompressProgress *progress, ISzAlloc *alloc, ISzAlloc *allocBig); -- - #ifdef __cplusplus - } - #endif ---- a/lib/lzma/LzmaEnc.c -+++ b/lib/lzma/LzmaEnc.c -@@ -53,7 +53,7 @@ void LzmaEncProps_Init(CLzmaEncProps *p) - p->writeEndMark = 0; - } - --void LzmaEncProps_Normalize(CLzmaEncProps *p) -+static void LzmaEncProps_Normalize(CLzmaEncProps *p) - { - int level = p->level; - if (level < 0) level = 5; -@@ -76,7 +76,7 @@ void LzmaEncProps_Normalize(CLzmaEncProp - #endif - } - --UInt32 LzmaEncProps_GetDictSize(const CLzmaEncProps *props2) -+static UInt32 __maybe_unused LzmaEncProps_GetDictSize(const CLzmaEncProps *props2) - { - CLzmaEncProps props = *props2; - LzmaEncProps_Normalize(&props); -@@ -93,7 +93,7 @@ UInt32 LzmaEncProps_GetDictSize(const CL - - #define BSR2_RET(pos, res) { unsigned long i; _BitScanReverse(&i, (pos)); res = (i + i) + ((pos >> (i - 1)) & 1); } - --UInt32 GetPosSlot1(UInt32 pos) -+static UInt32 GetPosSlot1(UInt32 pos) - { - UInt32 res; - BSR2_RET(pos, res); -@@ -107,7 +107,7 @@ UInt32 GetPosSlot1(UInt32 pos) - #define kNumLogBits (9 + (int)sizeof(size_t) / 2) - #define kDicLogSizeMaxCompress ((kNumLogBits - 1) * 2 + 7) - --void LzmaEnc_FastPosInit(Byte *g_FastPos) -+static void LzmaEnc_FastPosInit(Byte *g_FastPos) - { - int c = 2, slotFast; - g_FastPos[0] = 0; -@@ -339,7 +339,7 @@ typedef struct - CSaveState saveState; - } CLzmaEnc; - --void LzmaEnc_SaveState(CLzmaEncHandle pp) -+static void __maybe_unused LzmaEnc_SaveState(CLzmaEncHandle pp) - { - CLzmaEnc *p = (CLzmaEnc *)pp; - CSaveState *dest = &p->saveState; -@@ -365,7 +365,7 @@ void LzmaEnc_SaveState(CLzmaEncHandle pp - memcpy(dest->litProbs, p->litProbs, (0x300 << p->lclp) * sizeof(CLzmaProb)); - } - --void LzmaEnc_RestoreState(CLzmaEncHandle pp) -+static void __maybe_unused LzmaEnc_RestoreState(CLzmaEncHandle pp) - { - CLzmaEnc *dest = (CLzmaEnc *)pp; - const CSaveState *p = &dest->saveState; -@@ -600,7 +600,7 @@ static void LitEnc_EncodeMatched(CRangeE - while (symbol < 0x10000); - } - --void LzmaEnc_InitPriceTables(UInt32 *ProbPrices) -+static void LzmaEnc_InitPriceTables(UInt32 *ProbPrices) - { - UInt32 i; - for (i = (1 << kNumMoveReducingBits) / 2; i < kBitModelTotal; i += (1 << kNumMoveReducingBits)) -@@ -1676,7 +1676,7 @@ static void FillDistancesPrices(CLzmaEnc - p->matchPriceCount = 0; - } - --void LzmaEnc_Construct(CLzmaEnc *p) -+static void LzmaEnc_Construct(CLzmaEnc *p) - { - RangeEnc_Construct(&p->rc); - MatchFinder_Construct(&p->matchFinderBase); -@@ -1709,7 +1709,7 @@ CLzmaEncHandle LzmaEnc_Create(ISzAlloc * - return p; - } - --void LzmaEnc_FreeLits(CLzmaEnc *p, ISzAlloc *alloc) -+static void LzmaEnc_FreeLits(CLzmaEnc *p, ISzAlloc *alloc) - { - alloc->Free(alloc, p->litProbs); - alloc->Free(alloc, p->saveState.litProbs); -@@ -2074,7 +2074,7 @@ SRes LzmaEnc_MemPrepare(CLzmaEncHandle p - return LzmaEnc_AllocAndInit(p, keepWindowSize, alloc, allocBig); - } - --void LzmaEnc_Finish(CLzmaEncHandle pp) -+static void LzmaEnc_Finish(CLzmaEncHandle pp) - { - #ifndef _7ZIP_ST - CLzmaEnc *p = (CLzmaEnc *)pp; -@@ -2108,7 +2108,7 @@ static size_t MyWrite(void *pp, const vo - } - - --UInt32 LzmaEnc_GetNumAvailableBytes(CLzmaEncHandle pp) -+static UInt32 __maybe_unused LzmaEnc_GetNumAvailableBytes(CLzmaEncHandle pp) - { - const CLzmaEnc *p = (CLzmaEnc *)pp; - return p->matchFinder.GetNumAvailableBytes(p->matchFinderObj); -@@ -2120,7 +2120,7 @@ const Byte *LzmaEnc_GetCurBuf(CLzmaEncHa - return p->matchFinder.GetPointerToCurrentPos(p->matchFinderObj) - p->additionalOffset; - } - --SRes LzmaEnc_CodeOneMemBlock(CLzmaEncHandle pp, Bool reInit, -+static SRes __maybe_unused LzmaEnc_CodeOneMemBlock(CLzmaEncHandle pp, Bool reInit, - Byte *dest, size_t *destLen, UInt32 desiredPackSize, UInt32 *unpackSize) - { - CLzmaEnc *p = (CLzmaEnc *)pp; -@@ -2248,7 +2248,7 @@ SRes LzmaEnc_MemEncode(CLzmaEncHandle pp - return res; - } - --SRes LzmaEncode(Byte *dest, SizeT *destLen, const Byte *src, SizeT srcLen, -+static __maybe_unused SRes LzmaEncode(Byte *dest, SizeT *destLen, const Byte *src, SizeT srcLen, - const CLzmaEncProps *props, Byte *propsEncoded, SizeT *propsSize, int writeEndMark, - ICompressProgress *progress, ISzAlloc *alloc, ISzAlloc *allocBig) - { ---- a/include/linux/lzma/LzFind.h -+++ b/include/linux/lzma/LzFind.h -@@ -55,11 +55,6 @@ typedef struct _CMatchFinder - - #define Inline_MatchFinder_GetNumAvailableBytes(p) ((p)->streamPos - (p)->pos) - --int MatchFinder_NeedMove(CMatchFinder *p); --Byte *MatchFinder_GetPointerToCurrentPos(CMatchFinder *p); --void MatchFinder_MoveBlock(CMatchFinder *p); --void MatchFinder_ReadIfRequired(CMatchFinder *p); -- - void MatchFinder_Construct(CMatchFinder *p); - - /* Conditions: -@@ -70,12 +65,6 @@ int MatchFinder_Create(CMatchFinder *p, - UInt32 keepAddBufferBefore, UInt32 matchMaxLen, UInt32 keepAddBufferAfter, - ISzAlloc *alloc); - void MatchFinder_Free(CMatchFinder *p, ISzAlloc *alloc); --void MatchFinder_Normalize3(UInt32 subValue, CLzRef *items, UInt32 numItems); --void MatchFinder_ReduceOffsets(CMatchFinder *p, UInt32 subValue); -- --UInt32 * GetMatchesSpec1(UInt32 lenLimit, UInt32 curMatch, UInt32 pos, const Byte *buffer, CLzRef *son, -- UInt32 _cyclicBufferPos, UInt32 _cyclicBufferSize, UInt32 _cutValue, -- UInt32 *distances, UInt32 maxLen); - - /* - Conditions: -@@ -102,12 +91,6 @@ typedef struct _IMatchFinder - - void MatchFinder_CreateVTable(CMatchFinder *p, IMatchFinder *vTable); - --void MatchFinder_Init(CMatchFinder *p); --UInt32 Bt3Zip_MatchFinder_GetMatches(CMatchFinder *p, UInt32 *distances); --UInt32 Hc3Zip_MatchFinder_GetMatches(CMatchFinder *p, UInt32 *distances); --void Bt3Zip_MatchFinder_Skip(CMatchFinder *p, UInt32 num); --void Hc3Zip_MatchFinder_Skip(CMatchFinder *p, UInt32 num); -- - #ifdef __cplusplus - } - #endif ---- a/lib/lzma/LzFind.c -+++ b/lib/lzma/LzFind.c -@@ -42,12 +42,12 @@ static int LzInWindow_Create(CMatchFinde - return (p->bufferBase != 0); - } - --Byte *MatchFinder_GetPointerToCurrentPos(CMatchFinder *p) { return p->buffer; } --Byte MatchFinder_GetIndexByte(CMatchFinder *p, Int32 index) { return p->buffer[index]; } -+static Byte *MatchFinder_GetPointerToCurrentPos(CMatchFinder *p) { return p->buffer; } -+static Byte MatchFinder_GetIndexByte(CMatchFinder *p, Int32 index) { return p->buffer[index]; } - --UInt32 MatchFinder_GetNumAvailableBytes(CMatchFinder *p) { return p->streamPos - p->pos; } -+static UInt32 MatchFinder_GetNumAvailableBytes(CMatchFinder *p) { return p->streamPos - p->pos; } - --void MatchFinder_ReduceOffsets(CMatchFinder *p, UInt32 subValue) -+static void MatchFinder_ReduceOffsets(CMatchFinder *p, UInt32 subValue) - { - p->posLimit -= subValue; - p->pos -= subValue; -@@ -268,7 +268,7 @@ static void MatchFinder_SetLimits(CMatch - p->posLimit = p->pos + limit; - } - --void MatchFinder_Init(CMatchFinder *p) -+static void MatchFinder_Init(CMatchFinder *p) - { - UInt32 i; - for (i = 0; i < p->hashSizeSum; i++) -@@ -287,7 +287,7 @@ static UInt32 MatchFinder_GetSubValue(CM - return (p->pos - p->historySize - 1) & kNormalizeMask; - } - --void MatchFinder_Normalize3(UInt32 subValue, CLzRef *items, UInt32 numItems) -+static void MatchFinder_Normalize3(UInt32 subValue, CLzRef *items, UInt32 numItems) - { - UInt32 i; - for (i = 0; i < numItems; i++) -@@ -350,7 +350,7 @@ static UInt32 * Hc_GetMatchesSpec(UInt32 - } - } - --UInt32 * GetMatchesSpec1(UInt32 lenLimit, UInt32 curMatch, UInt32 pos, const Byte *cur, CLzRef *son, -+static UInt32 * GetMatchesSpec1(UInt32 lenLimit, UInt32 curMatch, UInt32 pos, const Byte *cur, CLzRef *son, - UInt32 _cyclicBufferPos, UInt32 _cyclicBufferSize, UInt32 cutValue, - UInt32 *distances, UInt32 maxLen) - { -@@ -492,7 +492,7 @@ static UInt32 Bt2_MatchFinder_GetMatches - GET_MATCHES_FOOTER(offset, 1) - } - --UInt32 Bt3Zip_MatchFinder_GetMatches(CMatchFinder *p, UInt32 *distances) -+static __maybe_unused UInt32 Bt3Zip_MatchFinder_GetMatches(CMatchFinder *p, UInt32 *distances) - { - UInt32 offset; - GET_MATCHES_HEADER(3) -@@ -632,7 +632,7 @@ static UInt32 Hc4_MatchFinder_GetMatches - MOVE_POS_RET - } - --UInt32 Hc3Zip_MatchFinder_GetMatches(CMatchFinder *p, UInt32 *distances) -+static __maybe_unused UInt32 Hc3Zip_MatchFinder_GetMatches(CMatchFinder *p, UInt32 *distances) - { - UInt32 offset; - GET_MATCHES_HEADER(3) -@@ -657,7 +657,7 @@ static void Bt2_MatchFinder_Skip(CMatchF - while (--num != 0); - } - --void Bt3Zip_MatchFinder_Skip(CMatchFinder *p, UInt32 num) -+static __maybe_unused void Bt3Zip_MatchFinder_Skip(CMatchFinder *p, UInt32 num) - { - do - { -@@ -718,7 +718,7 @@ static void Hc4_MatchFinder_Skip(CMatchF - while (--num != 0); - } - --void Hc3Zip_MatchFinder_Skip(CMatchFinder *p, UInt32 num) -+static __maybe_unused void Hc3Zip_MatchFinder_Skip(CMatchFinder *p, UInt32 num) - { - do - { diff --git a/target/linux/generic/patches-2.6.39/011-mips_expose_boot_raw.patch b/target/linux/generic/patches-2.6.39/011-mips_expose_boot_raw.patch deleted file mode 100644 index 0be7b74de10..00000000000 --- a/target/linux/generic/patches-2.6.39/011-mips_expose_boot_raw.patch +++ /dev/null @@ -1,39 +0,0 @@ -From: Mark Miller - -This exposes the CONFIG_BOOT_RAW symbol in Kconfig. This is needed on -certain Broadcom chipsets running CFE in order to load the kernel. - -Signed-off-by: Mark Miller -Acked-by: Rob Landley ---- ---- a/arch/mips/Kconfig -+++ b/arch/mips/Kconfig -@@ -811,9 +811,6 @@ config ARC - config ARCH_MAY_HAVE_PC_FDC - bool - --config BOOT_RAW -- bool -- - config CEVT_BCM1480 - bool - -@@ -2252,6 +2249,18 @@ config USE_OF - help - Include support for flattened device tree machine descriptions. - -+config BOOT_RAW -+ bool "Enable the kernel to be executed from the load address" -+ default n -+ help -+ Allow the kernel to be executed from the load address for -+ bootloaders which cannot read the ELF format. This places -+ a jump to start_kernel at the load address. -+ -+ If unsure, say N. -+ -+ -+ - endmenu - - config LOCKDEP_SUPPORT diff --git a/target/linux/generic/patches-2.6.39/012-extra_optimization.patch b/target/linux/generic/patches-2.6.39/012-extra_optimization.patch deleted file mode 100644 index 8039c665239..00000000000 --- a/target/linux/generic/patches-2.6.39/012-extra_optimization.patch +++ /dev/null @@ -1,24 +0,0 @@ ---- a/Makefile -+++ b/Makefile -@@ -543,9 +543,9 @@ endif # $(dot-config) - all: vmlinux - - ifdef CONFIG_CC_OPTIMIZE_FOR_SIZE --KBUILD_CFLAGS += -Os -+KBUILD_CFLAGS += -Os -fno-caller-saves - else --KBUILD_CFLAGS += -O2 -+KBUILD_CFLAGS += -O2 -fno-reorder-blocks -fno-tree-ch -fno-caller-saves - endif - - include $(srctree)/arch/$(SRCARCH)/Makefile -@@ -600,6 +600,9 @@ endif - NOSTDINC_FLAGS += -nostdinc -isystem $(shell $(CC) -print-file-name=include) - CHECKFLAGS += $(NOSTDINC_FLAGS) - -+# improve gcc optimization -+CFLAGS += $(call cc-option,-funit-at-a-time,) -+ - # warn about C99 declaration after statement - KBUILD_CFLAGS += $(call cc-option,-Wdeclaration-after-statement,) - diff --git a/target/linux/generic/patches-2.6.39/014-cfi_show_amd_extended_table_version.patch b/target/linux/generic/patches-2.6.39/014-cfi_show_amd_extended_table_version.patch deleted file mode 100644 index ecd5c94c906..00000000000 --- a/target/linux/generic/patches-2.6.39/014-cfi_show_amd_extended_table_version.patch +++ /dev/null @@ -1,15 +0,0 @@ ---- a/drivers/mtd/chips/cfi_cmdset_0002.c -+++ b/drivers/mtd/chips/cfi_cmdset_0002.c -@@ -463,9 +463,9 @@ struct mtd_info *cfi_cmdset_0002(struct - - /* - * Valid primary extension versions are: 1.0, 1.1, 1.2, 1.3, 1.4 -- * see: http://cs.ozerki.net/zap/pub/axim-x5/docs/cfi_r20.pdf, page 19 -- * http://www.spansion.com/Support/AppNotes/cfi_100_20011201.pdf -- * http://www.spansion.com/Support/Datasheets/s29ws-p_00_a12_e.pdf -+ * see: Spec 1.3 http://cs.ozerki.net/zap/pub/axim-x5/docs/cfi_r20.pdf, page 19 -+ * http://www.spansion.com/Support/AppNotes/cfi_100_20011201.pdf -+ * Spec 1.4 http://www.spansion.com/Support/AppNotes/CFI_Spec_AN_03.pdf, page 9 - */ - if (extp->MajorVersion != '1' || - (extp->MajorVersion == '1' && (extp->MinorVersion < '0' || extp->MinorVersion > '4'))) { diff --git a/target/linux/generic/patches-2.6.39/021-mips_image_cmdline_hack.patch b/target/linux/generic/patches-2.6.39/021-mips_image_cmdline_hack.patch deleted file mode 100644 index ab5e775cc6e..00000000000 --- a/target/linux/generic/patches-2.6.39/021-mips_image_cmdline_hack.patch +++ /dev/null @@ -1,28 +0,0 @@ ---- a/arch/mips/Kconfig -+++ b/arch/mips/Kconfig -@@ -910,6 +910,10 @@ config SYNC_R4K - config MIPS_MACHINE - def_bool n - -+config IMAGE_CMDLINE_HACK -+ bool "OpenWrt specific image command line hack" -+ default n -+ - config NO_IOPORT - def_bool n - ---- a/arch/mips/kernel/head.S -+++ b/arch/mips/kernel/head.S -@@ -141,6 +141,12 @@ FEXPORT(__kernel_entry) - j kernel_entry - #endif - -+#ifdef CONFIG_IMAGE_CMDLINE_HACK -+ .ascii "CMDLINE:" -+EXPORT(__image_cmdline) -+ .fill 0x400 -+#endif /* CONFIG_IMAGE_CMDLINE_HACK */ -+ - __REF - - NESTED(kernel_entry, 16, sp) # kernel entry point diff --git a/target/linux/generic/patches-2.6.39/022-mips_use_generic_thread_info_allocator.patch b/target/linux/generic/patches-2.6.39/022-mips_use_generic_thread_info_allocator.patch deleted file mode 100644 index 1bcc74b41a5..00000000000 --- a/target/linux/generic/patches-2.6.39/022-mips_use_generic_thread_info_allocator.patch +++ /dev/null @@ -1,18 +0,0 @@ ---- a/arch/mips/include/asm/thread_info.h -+++ b/arch/mips/include/asm/thread_info.h -@@ -85,6 +85,7 @@ register struct thread_info *__current_t - - #define STACK_WARN (THREAD_SIZE / 8) - -+#if 0 - #define __HAVE_ARCH_THREAD_INFO_ALLOCATOR - - #ifdef CONFIG_DEBUG_STACK_USAGE -@@ -96,6 +97,7 @@ register struct thread_info *__current_t - #endif - - #define free_thread_info(info) kfree(info) -+#endif - - #endif /* !__ASSEMBLY__ */ - diff --git a/target/linux/generic/patches-2.6.39/023-mips-fix-kexec.patch b/target/linux/generic/patches-2.6.39/023-mips-fix-kexec.patch deleted file mode 100644 index e6928dde916..00000000000 --- a/target/linux/generic/patches-2.6.39/023-mips-fix-kexec.patch +++ /dev/null @@ -1,11 +0,0 @@ ---- a/arch/mips/kernel/machine_kexec.c -+++ b/arch/mips/kernel/machine_kexec.c -@@ -52,7 +52,7 @@ machine_kexec(struct kimage *image) - reboot_code_buffer = - (unsigned long)page_address(image->control_code_page); - -- kexec_start_address = image->start; -+ kexec_start_address = (unsigned long) phys_to_virt(image->start); - kexec_indirection_page = - (unsigned long) phys_to_virt(image->head & PAGE_MASK); - diff --git a/target/linux/generic/patches-2.6.39/025-mips_disable_fpu.patch b/target/linux/generic/patches-2.6.39/025-mips_disable_fpu.patch deleted file mode 100644 index 520a5188c89..00000000000 --- a/target/linux/generic/patches-2.6.39/025-mips_disable_fpu.patch +++ /dev/null @@ -1,160 +0,0 @@ -MIPS: allow disabling the kernel FPU emulator - -This patch allows turning off the in-kernel Algorithmics -FPU emulator support, which allows one to save a couple of -precious blocks on an embedded system. - -Signed-off-by: Florian Fainelli --- ---- a/arch/mips/Kconfig -+++ b/arch/mips/Kconfig -@@ -895,6 +895,17 @@ config I8259 - config MIPS_BONITO64 - bool - -+config MIPS_FPU_EMU -+ bool "Enable FPU emulation" -+ default y -+ help -+ This option allows building a kernel with or without the Algorithmics -+ FPU emulator enabled. Turning off this option results in a kernel which -+ does not catch floating operations exceptions. Make sure that your toolchain -+ is configured to enable software floating point emulation in that case. -+ -+ If unsure say Y here. -+ - config MIPS_MSC - bool - ---- a/arch/mips/math-emu/Makefile -+++ b/arch/mips/math-emu/Makefile -@@ -2,11 +2,13 @@ - # Makefile for the Linux/MIPS kernel FPU emulation. - # - --obj-y := cp1emu.o ieee754m.o ieee754d.o ieee754dp.o ieee754sp.o ieee754.o \ -+obj-y := kernel_linkage.o dsemul.o cp1emu.o -+ -+obj-$(CONFIG_MIPS_FPU_EMU) += ieee754m.o ieee754d.o ieee754dp.o ieee754sp.o ieee754.o \ - ieee754xcpt.o dp_frexp.o dp_modf.o dp_div.o dp_mul.o dp_sub.o \ - dp_add.o dp_fsp.o dp_cmp.o dp_logb.o dp_scalb.o dp_simple.o \ - dp_tint.o dp_fint.o dp_tlong.o dp_flong.o sp_frexp.o sp_modf.o \ - sp_div.o sp_mul.o sp_sub.o sp_add.o sp_fdp.o sp_cmp.o sp_logb.o \ - sp_scalb.o sp_simple.o sp_tint.o sp_fint.o sp_tlong.o sp_flong.o \ -- dp_sqrt.o sp_sqrt.o kernel_linkage.o dsemul.o -+ dp_sqrt.o sp_sqrt.o - ---- a/arch/mips/math-emu/cp1emu.c -+++ b/arch/mips/math-emu/cp1emu.c -@@ -58,7 +58,11 @@ - #define __mips 4 - - /* Function which emulates a floating point instruction. */ -+#ifdef CONFIG_DEBUG_FS -+DEFINE_PER_CPU(struct mips_fpu_emulator_stats, fpuemustats); -+#endif - -+#ifdef CONFIG_MIPS_FPU_EMU - static int fpu_emu(struct pt_regs *, struct mips_fpu_struct *, - mips_instruction); - -@@ -69,10 +73,6 @@ static int fpux_emu(struct pt_regs *, - - /* Further private data for which no space exists in mips_fpu_struct */ - --#ifdef CONFIG_DEBUG_FS --DEFINE_PER_CPU(struct mips_fpu_emulator_stats, fpuemustats); --#endif -- - /* Control registers */ - - #define FPCREG_RID 0 /* $0 = revision id */ -@@ -1361,7 +1361,6 @@ int fpu_emulator_cop1Handler(struct pt_r - - return sig; - } -- - #ifdef CONFIG_DEBUG_FS - - static int fpuemu_stat_get(void *data, u64 *val) -@@ -1410,4 +1409,11 @@ static int __init debugfs_fpuemu(void) - return 0; - } - __initcall(debugfs_fpuemu); --#endif -+#endif /* CONFIG_DEBUGFS */ -+#else -+int fpu_emulator_cop1Handler(struct pt_regs *xcp, struct mips_fpu_struct *ctx, -+ int has_fpu) -+{ -+ return 0; -+} -+#endif /* CONFIG_MIPS_FPU_EMU */ ---- a/arch/mips/math-emu/dsemul.c -+++ b/arch/mips/math-emu/dsemul.c -@@ -109,6 +109,7 @@ int mips_dsemul(struct pt_regs *regs, mi - return SIGILL; /* force out of emulation loop */ - } - -+#ifdef CONFIG_MIPS_FPU_EMU - int do_dsemulret(struct pt_regs *xcp) - { - struct emuframe __user *fr; -@@ -165,3 +166,9 @@ int do_dsemulret(struct pt_regs *xcp) - - return 1; - } -+#else -+int do_dsemulret(struct pt_regs *xcp) -+{ -+ return 0; -+} -+#endif /* CONFIG_MIPS_FPU_EMU */ ---- a/arch/mips/math-emu/kernel_linkage.c -+++ b/arch/mips/math-emu/kernel_linkage.c -@@ -29,6 +29,7 @@ - - #define SIGNALLING_NAN 0x7ff800007ff80000LL - -+#ifdef CONFIG_MIPS_FPU_EMU - void fpu_emulator_init_fpu(void) - { - static int first = 1; -@@ -112,4 +113,36 @@ int fpu_emulator_restore_context32(struc - - return err; - } --#endif -+#endif /* CONFIG_64BIT */ -+#else -+ -+void fpu_emulator_init_fpu(void) -+{ -+ printk(KERN_INFO "FPU emulator disabled, make sure your toolchain" -+ "was compiled with software floating point support (soft-float)\n"); -+ return; -+} -+ -+int fpu_emulator_save_context(struct sigcontext __user *sc) -+{ -+ return 0; -+} -+ -+int fpu_emulator_restore_context(struct sigcontext __user *sc) -+{ -+ return 0; -+} -+ -+int fpu_emulator_save_context32(struct sigcontext32 __user *sc) -+{ -+ return 0; -+} -+ -+int fpu_emulator_restore_context32(struct sigcontext32 __user *sc) -+{ -+ return 0; -+} -+ -+#ifdef CONFIG_64BIT -+#endif /* CONFIG_64BIT */ -+#endif /* CONFIG_MIPS_FPU_EMU */ diff --git a/target/linux/generic/patches-2.6.39/027-mips_module_reloc.patch b/target/linux/generic/patches-2.6.39/027-mips_module_reloc.patch deleted file mode 100644 index 5513962cb24..00000000000 --- a/target/linux/generic/patches-2.6.39/027-mips_module_reloc.patch +++ /dev/null @@ -1,370 +0,0 @@ ---- a/arch/mips/Makefile -+++ b/arch/mips/Makefile -@@ -90,8 +90,8 @@ all-$(CONFIG_SYS_SUPPORTS_ZBOOT)+= vmlin - cflags-y += -G 0 -mno-abicalls -fno-pic -pipe - cflags-y += -msoft-float - LDFLAGS_vmlinux += -G 0 -static -n -nostdlib --KBUILD_AFLAGS_MODULE += -mlong-calls --KBUILD_CFLAGS_MODULE += -mlong-calls -+KBUILD_AFLAGS_MODULE += -mno-long-calls -+KBUILD_CFLAGS_MODULE += -mno-long-calls - - cflags-y += -ffreestanding - ---- a/arch/mips/include/asm/module.h -+++ b/arch/mips/include/asm/module.h -@@ -9,6 +9,11 @@ struct mod_arch_specific { - struct list_head dbe_list; - const struct exception_table_entry *dbe_start; - const struct exception_table_entry *dbe_end; -+ -+ void *phys_plt_tbl; -+ void *virt_plt_tbl; -+ unsigned int phys_plt_offset; -+ unsigned int virt_plt_offset; - }; - - typedef uint8_t Elf64_Byte; /* Type for a 8-bit quantity. */ ---- a/arch/mips/kernel/module.c -+++ b/arch/mips/kernel/module.c -@@ -45,6 +45,117 @@ static struct mips_hi16 *mips_hi16_list; - static LIST_HEAD(dbe_list); - static DEFINE_SPINLOCK(dbe_lock); - -+/* -+ * Get the potential max trampolines size required of the init and -+ * non-init sections. Only used if we cannot find enough contiguous -+ * physically mapped memory to put the module into. -+ */ -+static unsigned int -+get_plt_size(const Elf_Ehdr *hdr, const Elf_Shdr *sechdrs, -+ const char *secstrings, unsigned int symindex, bool is_init) -+{ -+ unsigned long ret = 0; -+ unsigned int i, j; -+ Elf_Sym *syms; -+ -+ /* Everything marked ALLOC (this includes the exported symbols) */ -+ for (i = 1; i < hdr->e_shnum; ++i) { -+ unsigned int info = sechdrs[i].sh_info; -+ -+ if (sechdrs[i].sh_type != SHT_REL -+ && sechdrs[i].sh_type != SHT_RELA) -+ continue; -+ -+ /* Not a valid relocation section? */ -+ if (info >= hdr->e_shnum) -+ continue; -+ -+ /* Don't bother with non-allocated sections */ -+ if (!(sechdrs[info].sh_flags & SHF_ALLOC)) -+ continue; -+ -+ /* If it's called *.init*, and we're not init, we're -+ not interested */ -+ if ((strstr(secstrings + sechdrs[i].sh_name, ".init") != 0) -+ != is_init) -+ continue; -+ -+ syms = (Elf_Sym *) sechdrs[symindex].sh_addr; -+ if (sechdrs[i].sh_type == SHT_REL) { -+ Elf_Mips_Rel *rel = (void *) sechdrs[i].sh_addr; -+ unsigned int size = sechdrs[i].sh_size / sizeof(*rel); -+ -+ for (j = 0; j < size; ++j) { -+ Elf_Sym *sym; -+ -+ if (ELF_MIPS_R_TYPE(rel[j]) != R_MIPS_26) -+ continue; -+ -+ sym = syms + ELF_MIPS_R_SYM(rel[j]); -+ if (!is_init && sym->st_shndx != SHN_UNDEF) -+ continue; -+ -+ ret += 4 * sizeof(int); -+ } -+ } else { -+ Elf_Mips_Rela *rela = (void *) sechdrs[i].sh_addr; -+ unsigned int size = sechdrs[i].sh_size / sizeof(*rela); -+ -+ for (j = 0; j < size; ++j) { -+ Elf_Sym *sym; -+ -+ if (ELF_MIPS_R_TYPE(rela[j]) != R_MIPS_26) -+ continue; -+ -+ sym = syms + ELF_MIPS_R_SYM(rela[j]); -+ if (!is_init && sym->st_shndx != SHN_UNDEF) -+ continue; -+ -+ ret += 4 * sizeof(int); -+ } -+ } -+ } -+ -+ return ret; -+} -+ -+#ifndef MODULE_START -+static void *alloc_phys(unsigned long size) -+{ -+ unsigned order; -+ struct page *page; -+ struct page *p; -+ -+ size = PAGE_ALIGN(size); -+ order = get_order(size); -+ -+ page = alloc_pages(GFP_KERNEL | __GFP_NORETRY | __GFP_NOWARN | -+ __GFP_THISNODE, order); -+ if (!page) -+ return NULL; -+ -+ split_page(page, order); -+ -+ for (p = page + (size >> PAGE_SHIFT); p < page + (1 << order); ++p) -+ __free_page(p); -+ -+ return page_address(page); -+} -+#endif -+ -+static void free_phys(void *ptr, unsigned long size) -+{ -+ struct page *page; -+ struct page *end; -+ -+ page = virt_to_page(ptr); -+ end = page + (PAGE_ALIGN(size) >> PAGE_SHIFT); -+ -+ for (; page < end; ++page) -+ __free_page(page); -+} -+ -+ - void *module_alloc(unsigned long size) - { - #ifdef MODULE_START -@@ -52,21 +163,99 @@ void *module_alloc(unsigned long size) - GFP_KERNEL, PAGE_KERNEL, -1, - __builtin_return_address(0)); - #else -+ void *ptr; -+ - if (size == 0) - return NULL; -- return vmalloc(size); -+ -+ ptr = alloc_phys(size); -+ -+ /* If we failed to allocate physically contiguous memory, -+ * fall back to regular vmalloc. The module loader code will -+ * create jump tables to handle long jumps */ -+ if (!ptr) -+ return vmalloc(size); -+ -+ return ptr; -+#endif -+} -+ -+static inline bool is_phys_addr(void *ptr) -+{ -+#ifdef CONFIG_64BIT -+ return (KSEGX((unsigned long)ptr) == CKSEG0); -+#else -+ return (KSEGX(ptr) == KSEG0); - #endif - } - - /* Free memory returned from module_alloc */ - void module_free(struct module *mod, void *module_region) - { -- vfree(module_region); -+ if (is_phys_addr(module_region)) { -+ if (mod->module_init == module_region) -+ free_phys(module_region, mod->init_size); -+ else if (mod->module_core == module_region) -+ free_phys(module_region, mod->core_size); -+ else -+ BUG(); -+ } else { -+ vfree(module_region); -+ } -+} -+ -+static void *__module_alloc(int size, bool phys) -+{ -+ void *ptr; -+ -+ if (phys) -+ ptr = kmalloc(size, GFP_KERNEL); -+ else -+ ptr = vmalloc(size); -+ return ptr; -+} -+ -+static void __module_free(void *ptr) -+{ -+ if (is_phys_addr(ptr)) -+ kfree(ptr); -+ else -+ vfree(ptr); - } - - int module_frob_arch_sections(Elf_Ehdr *hdr, Elf_Shdr *sechdrs, - char *secstrings, struct module *mod) - { -+ unsigned int symindex = 0; -+ unsigned int core_size, init_size; -+ int i; -+ -+ for (i = 1; i < hdr->e_shnum; i++) -+ if (sechdrs[i].sh_type == SHT_SYMTAB) -+ symindex = i; -+ -+ core_size = get_plt_size(hdr, sechdrs, secstrings, symindex, false); -+ init_size = get_plt_size(hdr, sechdrs, secstrings, symindex, true); -+ -+ mod->arch.phys_plt_offset = 0; -+ mod->arch.virt_plt_offset = 0; -+ mod->arch.phys_plt_tbl = NULL; -+ mod->arch.virt_plt_tbl = NULL; -+ -+ if ((core_size + init_size) == 0) -+ return 0; -+ -+ mod->arch.phys_plt_tbl = __module_alloc(core_size + init_size, 1); -+ if (!mod->arch.phys_plt_tbl) -+ return -ENOMEM; -+ -+ mod->arch.virt_plt_tbl = __module_alloc(core_size + init_size, 0); -+ if (!mod->arch.virt_plt_tbl) { -+ __module_free(mod->arch.phys_plt_tbl); -+ mod->arch.phys_plt_tbl = NULL; -+ return -ENOMEM; -+ } -+ - return 0; - } - -@@ -89,28 +278,36 @@ static int apply_r_mips_32_rela(struct m - return 0; - } - --static int apply_r_mips_26_rel(struct module *me, u32 *location, Elf_Addr v) -+static Elf_Addr add_plt_entry_to(unsigned *plt_offset, -+ void *start, Elf_Addr v) - { -- if (v % 4) { -- pr_err("module %s: dangerous R_MIPS_26 REL relocation\n", -- me->name); -- return -ENOEXEC; -- } -+ unsigned *tramp = start + *plt_offset; -+ *plt_offset += 4 * sizeof(int); - -- if ((v & 0xf0000000) != (((unsigned long)location + 4) & 0xf0000000)) { -- printk(KERN_ERR -- "module %s: relocation overflow\n", -- me->name); -- return -ENOEXEC; -- } -+ /* adjust carry for addiu */ -+ if (v & 0x00008000) -+ v += 0x10000; - -- *location = (*location & ~0x03ffffff) | -- ((*location + (v >> 2)) & 0x03ffffff); -+ tramp[0] = 0x3c190000 | (v >> 16); /* lui t9, hi16 */ -+ tramp[1] = 0x27390000 | (v & 0xffff); /* addiu t9, t9, lo16 */ -+ tramp[2] = 0x03200008; /* jr t9 */ -+ tramp[3] = 0x00000000; /* nop */ - -- return 0; -+ return (Elf_Addr) tramp; - } - --static int apply_r_mips_26_rela(struct module *me, u32 *location, Elf_Addr v) -+static Elf_Addr add_plt_entry(struct module *me, void *location, Elf_Addr v) -+{ -+ if (is_phys_addr(location)) -+ return add_plt_entry_to(&me->arch.phys_plt_offset, -+ me->arch.phys_plt_tbl, v); -+ else -+ return add_plt_entry_to(&me->arch.virt_plt_offset, -+ me->arch.virt_plt_tbl, v); -+ -+} -+ -+static int set_r_mips_26(struct module *me, u32 *location, u32 ofs, Elf_Addr v) - { - if (v % 4) { - pr_err("module %s: dangerous R_MIPS_26 RELArelocation\n", -@@ -119,17 +316,31 @@ static int apply_r_mips_26_rela(struct m - } - - if ((v & 0xf0000000) != (((unsigned long)location + 4) & 0xf0000000)) { -- printk(KERN_ERR -+ v = add_plt_entry(me, location, v + (ofs << 2)); -+ if (!v) { -+ printk(KERN_ERR - "module %s: relocation overflow\n", - me->name); -- return -ENOEXEC; -+ return -ENOEXEC; -+ } -+ ofs = 0; - } - -- *location = (*location & ~0x03ffffff) | ((v >> 2) & 0x03ffffff); -+ *location = (*location & ~0x03ffffff) | ((ofs + (v >> 2)) & 0x03ffffff); - - return 0; - } - -+static int apply_r_mips_26_rel(struct module *me, u32 *location, Elf_Addr v) -+{ -+ return set_r_mips_26(me, location, *location & 0x03ffffff, v); -+} -+ -+static int apply_r_mips_26_rela(struct module *me, u32 *location, Elf_Addr v) -+{ -+ return set_r_mips_26(me, location, 0, v); -+} -+ - static int apply_r_mips_hi16_rel(struct module *me, u32 *location, Elf_Addr v) - { - struct mips_hi16 *n; -@@ -397,11 +608,32 @@ int module_finalize(const Elf_Ehdr *hdr, - list_add(&me->arch.dbe_list, &dbe_list); - spin_unlock_irq(&dbe_lock); - } -+ -+ /* Get rid of the fixup trampoline if we're running the module -+ * from physically mapped address space */ -+ if (me->arch.phys_plt_offset == 0) { -+ __module_free(me->arch.phys_plt_tbl); -+ me->arch.phys_plt_tbl = NULL; -+ } -+ if (me->arch.virt_plt_offset == 0) { -+ __module_free(me->arch.virt_plt_tbl); -+ me->arch.virt_plt_tbl = NULL; -+ } -+ - return 0; - } - - void module_arch_cleanup(struct module *mod) - { -+ if (mod->arch.phys_plt_tbl) { -+ __module_free(mod->arch.phys_plt_tbl); -+ mod->arch.phys_plt_tbl = NULL; -+ } -+ if (mod->arch.virt_plt_tbl) { -+ __module_free(mod->arch.virt_plt_tbl); -+ mod->arch.virt_plt_tbl = NULL; -+ } -+ - spin_lock_irq(&dbe_lock); - list_del(&mod->arch.dbe_list); - spin_unlock_irq(&dbe_lock); diff --git a/target/linux/generic/patches-2.6.39/028-module_exports.patch b/target/linux/generic/patches-2.6.39/028-module_exports.patch deleted file mode 100644 index 8a95743a4b8..00000000000 --- a/target/linux/generic/patches-2.6.39/028-module_exports.patch +++ /dev/null @@ -1,119 +0,0 @@ ---- a/include/asm-generic/vmlinux.lds.h -+++ b/include/asm-generic/vmlinux.lds.h -@@ -52,6 +52,27 @@ - #define LOAD_OFFSET 0 - #endif - -+#ifndef SYMTAB_KEEP_STR -+#define SYMTAB_KEEP_STR *(__ksymtab_strings.*) -+#define SYMTAB_DISCARD_STR -+#else -+#define SYMTAB_DISCARD_STR *(__ksymtab_strings.*) -+#endif -+ -+#ifndef SYMTAB_KEEP -+#define SYMTAB_KEEP *(__ksymtab.*) -+#define SYMTAB_DISCARD -+#else -+#define SYMTAB_DISCARD *(__ksymtab.*) -+#endif -+ -+#ifndef SYMTAB_KEEP_GPL -+#define SYMTAB_KEEP_GPL *(__ksymtab_gpl.*) -+#define SYMTAB_DISCARD_GPL -+#else -+#define SYMTAB_DISCARD_GPL *(__ksymtab_gpl.*) -+#endif -+ - #ifndef SYMBOL_PREFIX - #define VMLINUX_SYMBOL(sym) sym - #else -@@ -274,35 +295,35 @@ - /* Kernel symbol table: Normal symbols */ \ - __ksymtab : AT(ADDR(__ksymtab) - LOAD_OFFSET) { \ - VMLINUX_SYMBOL(__start___ksymtab) = .; \ -- *(__ksymtab) \ -+ SYMTAB_KEEP \ - VMLINUX_SYMBOL(__stop___ksymtab) = .; \ - } \ - \ - /* Kernel symbol table: GPL-only symbols */ \ - __ksymtab_gpl : AT(ADDR(__ksymtab_gpl) - LOAD_OFFSET) { \ - VMLINUX_SYMBOL(__start___ksymtab_gpl) = .; \ -- *(__ksymtab_gpl) \ -+ SYMTAB_KEEP_GPL \ - VMLINUX_SYMBOL(__stop___ksymtab_gpl) = .; \ - } \ - \ - /* Kernel symbol table: Normal unused symbols */ \ - __ksymtab_unused : AT(ADDR(__ksymtab_unused) - LOAD_OFFSET) { \ - VMLINUX_SYMBOL(__start___ksymtab_unused) = .; \ -- *(__ksymtab_unused) \ -+ *(__ksymtab_unused.*) \ - VMLINUX_SYMBOL(__stop___ksymtab_unused) = .; \ - } \ - \ - /* Kernel symbol table: GPL-only unused symbols */ \ - __ksymtab_unused_gpl : AT(ADDR(__ksymtab_unused_gpl) - LOAD_OFFSET) { \ - VMLINUX_SYMBOL(__start___ksymtab_unused_gpl) = .; \ -- *(__ksymtab_unused_gpl) \ -+ *(__ksymtab_unused_gpl.*) \ - VMLINUX_SYMBOL(__stop___ksymtab_unused_gpl) = .; \ - } \ - \ - /* Kernel symbol table: GPL-future-only symbols */ \ - __ksymtab_gpl_future : AT(ADDR(__ksymtab_gpl_future) - LOAD_OFFSET) { \ - VMLINUX_SYMBOL(__start___ksymtab_gpl_future) = .; \ -- *(__ksymtab_gpl_future) \ -+ *(__ksymtab_gpl_future.*) \ - VMLINUX_SYMBOL(__stop___ksymtab_gpl_future) = .; \ - } \ - \ -@@ -343,7 +364,7 @@ - \ - /* Kernel symbol table: strings */ \ - __ksymtab_strings : AT(ADDR(__ksymtab_strings) - LOAD_OFFSET) { \ -- *(__ksymtab_strings) \ -+ SYMTAB_KEEP_STR \ - } \ - \ - /* __*init sections */ \ -@@ -683,6 +704,9 @@ - EXIT_TEXT \ - EXIT_DATA \ - EXIT_CALL \ -+ SYMTAB_DISCARD \ -+ SYMTAB_DISCARD_GPL \ -+ SYMTAB_DISCARD_STR \ - *(.discard) \ - *(.discard.*) \ - } ---- a/include/linux/module.h -+++ b/include/linux/module.h -@@ -229,16 +229,24 @@ struct module_use { - #define __CRC_SYMBOL(sym, sec) - #endif - -+#ifdef MODULE -+#define __EXPORT_SUFFIX(sym) -+#else -+#define __EXPORT_SUFFIX(sym) "." #sym -+#endif -+ - /* For every exported symbol, place a struct in the __ksymtab section */ - #define __EXPORT_SYMBOL(sym, sec) \ - extern typeof(sym) sym; \ - __CRC_SYMBOL(sym, sec) \ - static const char __kstrtab_##sym[] \ -- __attribute__((section("__ksymtab_strings"), aligned(1))) \ -+ __attribute__((section("__ksymtab_strings" \ -+ __EXPORT_SUFFIX(sym)), aligned(1))) \ - = MODULE_SYMBOL_PREFIX #sym; \ - static const struct kernel_symbol __ksymtab_##sym \ - __used \ -- __attribute__((section("__ksymtab" sec), unused)) \ -+ __attribute__((section("__ksymtab" sec \ -+ __EXPORT_SUFFIX(sym)), unused)) \ - = { (unsigned long)&sym, __kstrtab_##sym } - - #define EXPORT_SYMBOL(sym) \ diff --git a/target/linux/generic/patches-2.6.39/029-arm_module_unresolved_weak_sym.patch b/target/linux/generic/patches-2.6.39/029-arm_module_unresolved_weak_sym.patch deleted file mode 100644 index c63ff676880..00000000000 --- a/target/linux/generic/patches-2.6.39/029-arm_module_unresolved_weak_sym.patch +++ /dev/null @@ -1,13 +0,0 @@ ---- a/arch/arm/kernel/module.c -+++ b/arch/arm/kernel/module.c -@@ -99,6 +99,10 @@ apply_relocate(Elf32_Shdr *sechdrs, cons - return -ENOEXEC; - } - -+ if ((IS_ERR_VALUE(sym->st_value) || !sym->st_value) && -+ ELF_ST_BIND(sym->st_info) == STB_WEAK) -+ continue; -+ - loc = dstsec->sh_addr + rel->r_offset; - - switch (ELF32_R_TYPE(rel->r_info)) { diff --git a/target/linux/generic/patches-2.6.39/030-pci_disable_common_quirks.patch b/target/linux/generic/patches-2.6.39/030-pci_disable_common_quirks.patch deleted file mode 100644 index c9478361667..00000000000 --- a/target/linux/generic/patches-2.6.39/030-pci_disable_common_quirks.patch +++ /dev/null @@ -1,43 +0,0 @@ ---- a/drivers/pci/Kconfig -+++ b/drivers/pci/Kconfig -@@ -62,6 +62,12 @@ config XEN_PCIDEV_FE_DEBUG - - When in doubt, say N. - -+config PCI_DISABLE_COMMON_QUIRKS -+ bool "PCI disable common quirks" -+ depends on PCI -+ help -+ If you don't know what to do here, say N. -+ - config HT_IRQ - bool "Interrupts on hypertransport devices" - default y ---- a/drivers/pci/quirks.c -+++ b/drivers/pci/quirks.c -@@ -104,6 +104,7 @@ static void __devinit quirk_mmio_always_ - } - DECLARE_PCI_FIXUP_EARLY(PCI_ANY_ID, PCI_ANY_ID, quirk_mmio_always_on); - -+#ifndef CONFIG_PCI_DISABLE_COMMON_QUIRKS - /* The Mellanox Tavor device gives false positive parity errors - * Mark this device with a broken_parity_status, to allow - * PCI scanning code to "skip" this now blacklisted device. -@@ -1989,7 +1990,9 @@ static void __devinit fixup_rev1_53c810( - } - } - DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_NCR, PCI_DEVICE_ID_NCR_53C810, fixup_rev1_53c810); -+#endif /* !CONFIG_PCI_DISABLE_COMMON_QUIRKS */ - -+#ifndef CONFIG_PCI_DISABLE_COMMON_QUIRKS - /* Enable 1k I/O space granularity on the Intel P64H2 */ - static void __devinit quirk_p64h2_1k_io(struct pci_dev *dev) - { -@@ -2662,6 +2665,7 @@ DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_AT - quirk_msi_intx_disable_bug); - - #endif /* CONFIG_PCI_MSI */ -+#endif /* !CONFIG_PCI_DISABLE_COMMON_QUIRKS */ - - /* Allow manual resource allocation for PCI hotplug bridges - * via pci=hpmemsize=nnM and pci=hpiosize=nnM parameters. For diff --git a/target/linux/generic/patches-2.6.39/031-pci_disable_usb_common_quirks.patch b/target/linux/generic/patches-2.6.39/031-pci_disable_usb_common_quirks.patch deleted file mode 100644 index 47abdf27ca9..00000000000 --- a/target/linux/generic/patches-2.6.39/031-pci_disable_usb_common_quirks.patch +++ /dev/null @@ -1,18 +0,0 @@ - ---- a/drivers/usb/host/pci-quirks.c -+++ b/drivers/usb/host/pci-quirks.c -@@ -392,6 +392,8 @@ reset_needed: - } - EXPORT_SYMBOL_GPL(uhci_check_and_reset_hc); - -+#ifndef CONFIG_PCI_DISABLE_COMMON_QUIRKS -+ - static inline int io_type_enabled(struct pci_dev *pdev, unsigned int mask) - { - u16 cmd; -@@ -736,3 +738,5 @@ static void __devinit quirk_usb_early_ha - quirk_usb_handoff_xhci(pdev); - } - DECLARE_PCI_FIXUP_FINAL(PCI_ANY_ID, PCI_ANY_ID, quirk_usb_early_handoff); -+ -+#endif diff --git a/target/linux/generic/patches-2.6.39/060-block2mtd_init.patch b/target/linux/generic/patches-2.6.39/060-block2mtd_init.patch deleted file mode 100644 index b0a95a1bd79..00000000000 --- a/target/linux/generic/patches-2.6.39/060-block2mtd_init.patch +++ /dev/null @@ -1,116 +0,0 @@ ---- a/drivers/mtd/devices/block2mtd.c -+++ b/drivers/mtd/devices/block2mtd.c -@@ -14,6 +14,7 @@ - #include - #include - #include -+#include - #include - #include - #include -@@ -232,11 +233,12 @@ static void block2mtd_free_device(struct - - - /* FIXME: ensure that mtd->size % erase_size == 0 */ --static struct block2mtd_dev *add_device(char *devname, int erase_size) -+static struct block2mtd_dev *add_device(char *devname, int erase_size, const char *mtdname) - { - const fmode_t mode = FMODE_READ | FMODE_WRITE | FMODE_EXCL; - struct block_device *bdev; - struct block2mtd_dev *dev; -+ struct mtd_partition *part; - char *name; - - if (!devname) -@@ -275,13 +277,16 @@ static struct block2mtd_dev *add_device( - - /* Setup the MTD structure */ - /* make the name contain the block device in */ -- name = kasprintf(GFP_KERNEL, "block2mtd: %s", devname); -+ if (!mtdname) -+ mtdname = devname; -+ name = kmalloc(strlen(mtdname) + 1, GFP_KERNEL); - if (!name) - goto devinit_err; - -+ strcpy(name, mtdname); - dev->mtd.name = name; - -- dev->mtd.size = dev->blkdev->bd_inode->i_size & PAGE_MASK; -+ dev->mtd.size = dev->blkdev->bd_inode->i_size & PAGE_MASK & ~(erase_size - 1); - dev->mtd.erasesize = erase_size; - dev->mtd.writesize = 1; - dev->mtd.type = MTD_RAM; -@@ -294,14 +299,17 @@ static struct block2mtd_dev *add_device( - dev->mtd.priv = dev; - dev->mtd.owner = THIS_MODULE; - -- if (add_mtd_device(&dev->mtd)) { -+ part = kzalloc(sizeof(struct mtd_partition), GFP_KERNEL); -+ part->name = dev->mtd.name; -+ part->offset = 0; -+ part->size = dev->mtd.size; -+ if (add_mtd_partitions(&dev->mtd, part, 1)) { - /* Device didn't get added, so free the entry */ - goto devinit_err; - } - list_add(&dev->list, &blkmtd_device_list); - INFO("mtd%d: [%s] erase_size = %dKiB [%d]", dev->mtd.index, -- dev->mtd.name + strlen("block2mtd: "), -- dev->mtd.erasesize >> 10, dev->mtd.erasesize); -+ mtdname, dev->mtd.erasesize >> 10, dev->mtd.erasesize); - return dev; - - devinit_err: -@@ -374,9 +382,9 @@ static char block2mtd_paramline[80 + 12] - - static int block2mtd_setup2(const char *val) - { -- char buf[80 + 12]; /* 80 for device, 12 for erase size */ -+ char buf[80 + 12 + 80]; /* 80 for device, 12 for erase size, 80 for name */ - char *str = buf; -- char *token[2]; -+ char *token[3]; - char *name; - size_t erase_size = PAGE_SIZE; - int i, ret; -@@ -387,7 +395,7 @@ static int block2mtd_setup2(const char * - strcpy(str, val); - kill_final_newline(str); - -- for (i = 0; i < 2; i++) -+ for (i = 0; i < 3; i++) - token[i] = strsep(&str, ","); - - if (str) -@@ -406,8 +414,10 @@ static int block2mtd_setup2(const char * - parse_err("illegal erase size"); - } - } -+ if (token[2] && (strlen(token[2]) + 1 > 80)) -+ parse_err("mtd device name too long"); - -- add_device(name, erase_size); -+ add_device(name, erase_size, token[2]); - - return 0; - } -@@ -441,7 +451,7 @@ static int block2mtd_setup(const char *v - - - module_param_call(block2mtd, block2mtd_setup, NULL, NULL, 0200); --MODULE_PARM_DESC(block2mtd, "Device to use. \"block2mtd=[,]\""); -+MODULE_PARM_DESC(block2mtd, "Device to use. \"block2mtd=[,[,]]\""); - - static int __init block2mtd_init(void) - { ---- a/fs/partitions/check.c -+++ b/fs/partitions/check.c -@@ -664,6 +664,7 @@ rescan: - kfree(state); - return 0; - } -+EXPORT_SYMBOL(rescan_partitions); - - unsigned char *read_dev_sector(struct block_device *bdev, sector_t n, Sector *p) - { diff --git a/target/linux/generic/patches-2.6.39/065-rootfs_split.patch b/target/linux/generic/patches-2.6.39/065-rootfs_split.patch deleted file mode 100644 index 081a1b4f012..00000000000 --- a/target/linux/generic/patches-2.6.39/065-rootfs_split.patch +++ /dev/null @@ -1,619 +0,0 @@ ---- a/drivers/mtd/Kconfig -+++ b/drivers/mtd/Kconfig -@@ -47,6 +47,16 @@ config MTD_PARTITIONS - - if MTD_PARTITIONS - -+config MTD_ROOTFS_ROOT_DEV -+ bool "Automatically set 'rootfs' partition to be root filesystem" -+ depends on MTD_PARTITIONS -+ default y -+ -+config MTD_ROOTFS_SPLIT -+ bool "Automatically split 'rootfs' partition for squashfs" -+ depends on MTD_PARTITIONS -+ default y -+ - config MTD_REDBOOT_PARTS - tristate "RedBoot partition table parsing" - ---help--- ---- a/drivers/mtd/mtdpart.c -+++ b/drivers/mtd/mtdpart.c -@@ -29,6 +29,8 @@ - #include - #include - #include -+#include -+#include - #include - - /* Our partition linked list */ -@@ -48,7 +50,7 @@ struct mtd_part { - * the pointer to that structure with this macro. - */ - #define PART(x) ((struct mtd_part *)(x)) -- -+#define IS_PART(mtd) (mtd->read == part_read) - - /* - * MTD methods which simply translate the effective address and pass through -@@ -636,6 +638,153 @@ int mtd_del_partition(struct mtd_info *m - } - EXPORT_SYMBOL_GPL(mtd_del_partition); - -+#ifdef CONFIG_MTD_ROOTFS_SPLIT -+#define ROOTFS_SPLIT_NAME "rootfs_data" -+#define ROOTFS_REMOVED_NAME "" -+ -+struct squashfs_super_block { -+ __le32 s_magic; -+ __le32 pad0[9]; -+ __le64 bytes_used; -+}; -+ -+ -+static int split_squashfs(struct mtd_info *master, int offset, int *split_offset) -+{ -+ struct squashfs_super_block sb; -+ int len, ret; -+ -+ ret = master->read(master, offset, sizeof(sb), &len, (void *) &sb); -+ if (ret || (len != sizeof(sb))) { -+ printk(KERN_ALERT "split_squashfs: error occured while reading " -+ "from \"%s\"\n", master->name); -+ return -EINVAL; -+ } -+ -+ if (SQUASHFS_MAGIC != le32_to_cpu(sb.s_magic) ) { -+ printk(KERN_ALERT "split_squashfs: no squashfs found in \"%s\"\n", -+ master->name); -+ *split_offset = 0; -+ return 0; -+ } -+ -+ if (le64_to_cpu((sb.bytes_used)) <= 0) { -+ printk(KERN_ALERT "split_squashfs: squashfs is empty in \"%s\"\n", -+ master->name); -+ *split_offset = 0; -+ return 0; -+ } -+ -+ len = (u32) le64_to_cpu(sb.bytes_used); -+ len += (offset & 0x000fffff); -+ len += (master->erasesize - 1); -+ len &= ~(master->erasesize - 1); -+ len -= (offset & 0x000fffff); -+ *split_offset = offset + len; -+ -+ return 0; -+} -+ -+static int split_rootfs_data(struct mtd_info *master, struct mtd_info *rpart, const struct mtd_partition *part) -+{ -+ struct mtd_partition *dpart; -+ struct mtd_part *slave = NULL; -+ int ret, split_offset = 0; -+ -+ ret = split_squashfs(master, part->offset, &split_offset); -+ if (ret) -+ return ret; -+ -+ if (split_offset <= 0) -+ return 0; -+ -+ dpart = kmalloc(sizeof(*part)+sizeof(ROOTFS_SPLIT_NAME)+1, GFP_KERNEL); -+ if (dpart == NULL) { -+ printk(KERN_INFO "split_squashfs: no memory for partition \"%s\"\n", -+ ROOTFS_SPLIT_NAME); -+ return -ENOMEM; -+ } -+ -+ memcpy(dpart, part, sizeof(*part)); -+ dpart->name = (unsigned char *)&dpart[1]; -+ strcpy(dpart->name, ROOTFS_SPLIT_NAME); -+ -+ dpart->size -= split_offset - dpart->offset; -+ dpart->offset = split_offset; -+ -+ if (dpart == NULL) -+ return 1; -+ -+ printk(KERN_INFO "mtd: partition \"%s\" created automatically, ofs=%llX, len=%llX \n", -+ ROOTFS_SPLIT_NAME, dpart->offset, dpart->size); -+ -+ slave = allocate_partition(master, dpart, 0, split_offset); -+ if (IS_ERR(slave)) -+ return PTR_ERR(slave); -+ mutex_lock(&mtd_partitions_mutex); -+ list_add(&slave->list, &mtd_partitions); -+ mutex_unlock(&mtd_partitions_mutex); -+ -+ add_mtd_device(&slave->mtd); -+ -+ rpart->split = &slave->mtd; -+ -+ return 0; -+} -+ -+static int refresh_rootfs_split(struct mtd_info *mtd) -+{ -+ struct mtd_partition tpart; -+ struct mtd_part *part; -+ char *name; -+ //int index = 0; -+ int offset, size; -+ int ret; -+ -+ part = PART(mtd); -+ -+ /* check for the new squashfs offset first */ -+ ret = split_squashfs(part->master, part->offset, &offset); -+ if (ret) -+ return ret; -+ -+ if ((offset > 0) && !mtd->split) { -+ printk(KERN_INFO "%s: creating new split partition for \"%s\"\n", __func__, mtd->name); -+ /* if we don't have a rootfs split partition, create a new one */ -+ tpart.name = (char *) mtd->name; -+ tpart.size = mtd->size; -+ tpart.offset = part->offset; -+ -+ return split_rootfs_data(part->master, &part->mtd, &tpart); -+ } else if ((offset > 0) && mtd->split) { -+ /* update the offsets of the existing partition */ -+ size = mtd->size + part->offset - offset; -+ -+ part = PART(mtd->split); -+ part->offset = offset; -+ part->mtd.size = size; -+ printk(KERN_INFO "%s: %s partition \"" ROOTFS_SPLIT_NAME "\", offset: 0x%06x (0x%06x)\n", -+ __func__, (!strcmp(part->mtd.name, ROOTFS_SPLIT_NAME) ? "updating" : "creating"), -+ (u32) part->offset, (u32) part->mtd.size); -+ name = kmalloc(sizeof(ROOTFS_SPLIT_NAME) + 1, GFP_KERNEL); -+ strcpy(name, ROOTFS_SPLIT_NAME); -+ part->mtd.name = name; -+ } else if ((offset <= 0) && mtd->split) { -+ printk(KERN_INFO "%s: removing partition \"%s\"\n", __func__, mtd->split->name); -+ -+ /* mark existing partition as removed */ -+ part = PART(mtd->split); -+ name = kmalloc(sizeof(ROOTFS_SPLIT_NAME) + 1, GFP_KERNEL); -+ strcpy(name, ROOTFS_REMOVED_NAME); -+ part->mtd.name = name; -+ part->offset = 0; -+ part->mtd.size = 0; -+ } -+ -+ return 0; -+} -+#endif /* CONFIG_MTD_ROOTFS_SPLIT */ -+ - /* - * This function, given a master MTD object and a partition table, creates - * and registers slave MTD objects which are bound to the master according to -@@ -652,6 +801,9 @@ int add_mtd_partitions(struct mtd_info * - struct mtd_part *slave; - uint64_t cur_offset = 0; - int i; -+#ifdef CONFIG_MTD_ROOTFS_SPLIT -+ int ret; -+#endif - - printk(KERN_NOTICE "Creating %d MTD partitions on \"%s\":\n", nbparts, master->name); - -@@ -666,6 +818,21 @@ int add_mtd_partitions(struct mtd_info * - - add_mtd_device(&slave->mtd); - -+ if (!strcmp(parts[i].name, "rootfs")) { -+#ifdef CONFIG_MTD_ROOTFS_ROOT_DEV -+ if (ROOT_DEV == 0) { -+ printk(KERN_NOTICE "mtd: partition \"rootfs\" " -+ "set to be root filesystem\n"); -+ ROOT_DEV = MKDEV(MTD_BLOCK_MAJOR, slave->mtd.index); -+ } -+#endif -+#ifdef CONFIG_MTD_ROOTFS_SPLIT -+ ret = split_rootfs_data(master, &slave->mtd, &parts[i]); -+ /* if (ret == 0) -+ * j++; */ -+#endif -+ } -+ - cur_offset = slave->offset + slave->mtd.size; - } - -@@ -673,6 +840,32 @@ int add_mtd_partitions(struct mtd_info * - } - EXPORT_SYMBOL(add_mtd_partitions); - -+int refresh_mtd_partitions(struct mtd_info *mtd) -+{ -+ int ret = 0; -+ -+ if (IS_PART(mtd)) { -+ struct mtd_part *part; -+ struct mtd_info *master; -+ -+ part = PART(mtd); -+ master = part->master; -+ if (master->refresh_device) -+ ret = master->refresh_device(master); -+ } -+ -+ if (!ret && mtd->refresh_device) -+ ret = mtd->refresh_device(mtd); -+ -+#ifdef CONFIG_MTD_ROOTFS_SPLIT -+ if (!ret && IS_PART(mtd) && !strcmp(mtd->name, "rootfs")) -+ refresh_rootfs_split(mtd); -+#endif -+ -+ return 0; -+} -+EXPORT_SYMBOL_GPL(refresh_mtd_partitions); -+ - static DEFINE_SPINLOCK(part_parser_lock); - static LIST_HEAD(part_parsers); - ---- a/drivers/mtd/devices/block2mtd.c -+++ b/drivers/mtd/devices/block2mtd.c -@@ -30,6 +30,8 @@ struct block2mtd_dev { - struct block_device *blkdev; - struct mtd_info mtd; - struct mutex write_mutex; -+ rwlock_t bdev_mutex; -+ char devname[0]; - }; - - -@@ -82,6 +84,12 @@ static int block2mtd_erase(struct mtd_in - size_t len = instr->len; - int err; - -+ read_lock(&dev->bdev_mutex); -+ if (!dev->blkdev) { -+ err = -EINVAL; -+ goto done; -+ } -+ - instr->state = MTD_ERASING; - mutex_lock(&dev->write_mutex); - err = _block2mtd_erase(dev, from, len); -@@ -93,6 +101,10 @@ static int block2mtd_erase(struct mtd_in - instr->state = MTD_ERASE_DONE; - - mtd_erase_callback(instr); -+ -+done: -+ read_unlock(&dev->bdev_mutex); -+ - return err; - } - -@@ -104,10 +116,14 @@ static int block2mtd_read(struct mtd_inf - struct page *page; - int index = from >> PAGE_SHIFT; - int offset = from & (PAGE_SIZE-1); -- int cpylen; -+ int cpylen, err = 0; -+ -+ read_lock(&dev->bdev_mutex); -+ if (!dev->blkdev || (from > mtd->size)) { -+ err = -EINVAL; -+ goto done; -+ } - -- if (from > mtd->size) -- return -EINVAL; - if (from + len > mtd->size) - len = mtd->size - from; - -@@ -122,10 +138,14 @@ static int block2mtd_read(struct mtd_inf - len = len - cpylen; - - page = page_read(dev->blkdev->bd_inode->i_mapping, index); -- if (!page) -- return -ENOMEM; -- if (IS_ERR(page)) -- return PTR_ERR(page); -+ if (!page) { -+ err = -ENOMEM; -+ goto done; -+ } -+ if (IS_ERR(page)) { -+ err = PTR_ERR(page); -+ goto done; -+ } - - memcpy(buf, page_address(page) + offset, cpylen); - page_cache_release(page); -@@ -136,7 +156,10 @@ static int block2mtd_read(struct mtd_inf - offset = 0; - index++; - } -- return 0; -+ -+done: -+ read_unlock(&dev->bdev_mutex); -+ return err; - } - - -@@ -188,12 +211,22 @@ static int block2mtd_write(struct mtd_in - size_t *retlen, const u_char *buf) - { - struct block2mtd_dev *dev = mtd->priv; -- int err; -+ int err = 0; -+ -+ read_lock(&dev->bdev_mutex); -+ if (!dev->blkdev) { -+ err = -EINVAL; -+ goto done; -+ } - - if (!len) -- return 0; -- if (to >= mtd->size) -- return -ENOSPC; -+ goto done; -+ -+ if (to >= mtd->size) { -+ err = -ENOSPC; -+ goto done; -+ } -+ - if (to + len > mtd->size) - len = mtd->size - to; - -@@ -202,6 +235,9 @@ static int block2mtd_write(struct mtd_in - mutex_unlock(&dev->write_mutex); - if (err > 0) - err = 0; -+ -+done: -+ read_unlock(&dev->bdev_mutex); - return err; - } - -@@ -210,33 +246,109 @@ static int block2mtd_write(struct mtd_in - static void block2mtd_sync(struct mtd_info *mtd) - { - struct block2mtd_dev *dev = mtd->priv; -+ read_lock(&dev->bdev_mutex); -+ if (dev->blkdev) - sync_blockdev(dev->blkdev); -+ read_unlock(&dev->bdev_mutex); -+ - return; - } - - -+static int _open_bdev(struct block2mtd_dev *dev) -+{ -+ const fmode_t mode = FMODE_READ | FMODE_WRITE | FMODE_EXCL; -+ struct block_device *bdev; -+ -+ /* Get a handle on the device */ -+ bdev = blkdev_get_by_path(dev->devname, mode, dev); -+#ifndef MODULE -+ if (IS_ERR(bdev)) { -+ -+ /* We might not have rootfs mounted at this point. Try -+ to resolve the device name by other means. */ -+ -+ dev_t devt = name_to_dev_t(dev->devname); -+ if (devt) -+ bdev = blkdev_get_by_dev(devt, mode, dev); -+ } -+#endif -+ -+ if (IS_ERR(bdev)) { -+ ERROR("error: cannot open device %s", dev->devname); -+ return 1; -+ } -+ dev->blkdev = bdev; -+ -+ if (MAJOR(bdev->bd_dev) == MTD_BLOCK_MAJOR) { -+ ERROR("attempting to use an MTD device as a block device"); -+ return 1; -+ } -+ -+ return 0; -+} -+ -+static void _close_bdev(struct block2mtd_dev *dev) -+{ -+ struct block_device *bdev; -+ -+ if (!dev->blkdev) -+ return; -+ -+ bdev = dev->blkdev; -+ invalidate_mapping_pages(dev->blkdev->bd_inode->i_mapping, 0, -1); -+ blkdev_put(dev->blkdev, FMODE_READ|FMODE_WRITE|FMODE_EXCL); -+ dev->blkdev = NULL; -+} -+ - static void block2mtd_free_device(struct block2mtd_dev *dev) - { - if (!dev) - return; - - kfree(dev->mtd.name); -- -- if (dev->blkdev) { -- invalidate_mapping_pages(dev->blkdev->bd_inode->i_mapping, -- 0, -1); -- blkdev_put(dev->blkdev, FMODE_READ|FMODE_WRITE|FMODE_EXCL); -- } -- -+ _close_bdev(dev); - kfree(dev); - } - - --/* FIXME: ensure that mtd->size % erase_size == 0 */ --static struct block2mtd_dev *add_device(char *devname, int erase_size, const char *mtdname) -+static int block2mtd_refresh(struct mtd_info *mtd) - { -- const fmode_t mode = FMODE_READ | FMODE_WRITE | FMODE_EXCL; -+ struct block2mtd_dev *dev = mtd->priv; - struct block_device *bdev; -+ dev_t devt; -+ int err = 0; -+ -+ /* no other mtd function can run at this point */ -+ write_lock(&dev->bdev_mutex); -+ -+ /* get the device number for the whole disk */ -+ devt = MKDEV(MAJOR(dev->blkdev->bd_dev), 0); -+ -+ /* close the old block device */ -+ _close_bdev(dev); -+ -+ /* open the whole disk, issue a partition rescan, then */ -+ bdev = blkdev_get_by_dev(devt, FMODE_WRITE | FMODE_READ); -+ if (!bdev || !bdev->bd_disk) -+ err = -EINVAL; -+#ifndef CONFIG_MTD_BLOCK2MTD_MODULE -+ else -+ err = rescan_partitions(bdev->bd_disk, bdev); -+#endif -+ if (bdev) -+ blkdev_put(bdev, FMODE_READ|FMODE_WRITE|FMODE_EXCL); -+ -+ /* try to open the partition block device again */ -+ _open_bdev(dev); -+ write_unlock(&dev->bdev_mutex); -+ -+ return err; -+} -+ -+/* FIXME: ensure that mtd->size % erase_size == 0 */ -+static struct block2mtd_dev *add_device(char *devname, int erase_size, char *mtdname) -+{ - struct block2mtd_dev *dev; - struct mtd_partition *part; - char *name; -@@ -244,36 +356,17 @@ static struct block2mtd_dev *add_device( - if (!devname) - return NULL; - -- dev = kzalloc(sizeof(struct block2mtd_dev), GFP_KERNEL); -+ dev = kzalloc(sizeof(struct block2mtd_dev) + strlen(devname) + 1, GFP_KERNEL); - if (!dev) - return NULL; - -- /* Get a handle on the device */ -- bdev = blkdev_get_by_path(devname, mode, dev); --#ifndef MODULE -- if (IS_ERR(bdev)) { -- -- /* We might not have rootfs mounted at this point. Try -- to resolve the device name by other means. */ -+ strcpy(dev->devname, devname); - -- dev_t devt = name_to_dev_t(devname); -- if (devt) -- bdev = blkdev_get_by_dev(devt, mode, dev); -- } --#endif -- -- if (IS_ERR(bdev)) { -- ERROR("error: cannot open device %s", devname); -+ if (_open_bdev(dev)) - goto devinit_err; -- } -- dev->blkdev = bdev; -- -- if (MAJOR(bdev->bd_dev) == MTD_BLOCK_MAJOR) { -- ERROR("attempting to use an MTD device as a block device"); -- goto devinit_err; -- } - - mutex_init(&dev->write_mutex); -+ rwlock_init(&dev->bdev_mutex); - - /* Setup the MTD structure */ - /* make the name contain the block device in */ -@@ -298,6 +391,7 @@ static struct block2mtd_dev *add_device( - dev->mtd.read = block2mtd_read; - dev->mtd.priv = dev; - dev->mtd.owner = THIS_MODULE; -+ dev->mtd.refresh_device = block2mtd_refresh; - - part = kzalloc(sizeof(struct mtd_partition), GFP_KERNEL); - part->name = dev->mtd.name; ---- a/drivers/mtd/mtdchar.c -+++ b/drivers/mtd/mtdchar.c -@@ -841,6 +841,13 @@ static int mtd_ioctl(struct file *file, - file->f_pos = 0; - break; - } -+#ifdef CONFIG_MTD_PARTITIONS -+ case MTDREFRESH: -+ { -+ ret = refresh_mtd_partitions(mtd); -+ break; -+ } -+#endif - - case OTPGETREGIONCOUNT: - case OTPGETREGIONINFO: ---- a/include/linux/mtd/mtd.h -+++ b/include/linux/mtd/mtd.h -@@ -125,6 +125,7 @@ struct nand_ecclayout { - struct nand_oobfree oobfree[MTD_MAX_OOBFREE_ENTRIES_LARGE]; - }; - -+struct mtd_info; - struct mtd_info { - u_char type; - uint32_t flags; -@@ -277,6 +278,9 @@ struct mtd_info { - struct device dev; - int usecount; - -+ int (*refresh_device)(struct mtd_info *mtd); -+ struct mtd_info *split; -+ - /* If the driver is something smart, like UBI, it may need to maintain - * its own reference counting. The below functions are only for driver. - * The driver may register its callbacks. These callbacks are not ---- a/include/linux/mtd/partitions.h -+++ b/include/linux/mtd/partitions.h -@@ -34,12 +34,14 @@ - * erasesize aligned (e.g. use MTDPART_OFS_NEXTBLK). - */ - -+struct mtd_partition; - struct mtd_partition { - char *name; /* identifier string */ - uint64_t size; /* partition size */ - uint64_t offset; /* offset within the master MTD space */ - uint32_t mask_flags; /* master MTD flags to mask out for this partition */ - struct nand_ecclayout *ecclayout; /* out of band layout for this partition (NAND only) */ -+ int (*refresh_partition)(struct mtd_info *); - }; - - #define MTDPART_OFS_NXTBLK (-2) -@@ -51,6 +53,7 @@ struct mtd_info; - - int add_mtd_partitions(struct mtd_info *, const struct mtd_partition *, int); - int del_mtd_partitions(struct mtd_info *); -+int refresh_mtd_partitions(struct mtd_info *); - - /* - * Functions dealing with the various ways of partitioning the space ---- a/include/mtd/mtd-abi.h -+++ b/include/mtd/mtd-abi.h -@@ -127,6 +127,7 @@ struct otp_info { - #define MEMWRITEOOB64 _IOWR('M', 21, struct mtd_oob_buf64) - #define MEMREADOOB64 _IOWR('M', 22, struct mtd_oob_buf64) - #define MEMISLOCKED _IOR('M', 23, struct erase_info_user) -+#define MTDREFRESH _IO('M', 23) - - /* - * Obsolete legacy interface. Keep it in order not to break userspace diff --git a/target/linux/generic/patches-2.6.39/066-block2mtd_probe.patch b/target/linux/generic/patches-2.6.39/066-block2mtd_probe.patch deleted file mode 100644 index 1afd2ff20ab..00000000000 --- a/target/linux/generic/patches-2.6.39/066-block2mtd_probe.patch +++ /dev/null @@ -1,10 +0,0 @@ ---- a/drivers/mtd/devices/block2mtd.c -+++ b/drivers/mtd/devices/block2mtd.c -@@ -268,6 +268,7 @@ static int _open_bdev(struct block2mtd_d - /* We might not have rootfs mounted at this point. Try - to resolve the device name by other means. */ - -+ wait_for_device_probe(); - dev_t devt = name_to_dev_t(dev->devname); - if (devt) - bdev = blkdev_get_by_dev(devt, mode, dev); diff --git a/target/linux/generic/patches-2.6.39/067-block2mtd_2.6.38_fix.patch b/target/linux/generic/patches-2.6.39/067-block2mtd_2.6.38_fix.patch deleted file mode 100644 index 1a052b3f43a..00000000000 --- a/target/linux/generic/patches-2.6.39/067-block2mtd_2.6.38_fix.patch +++ /dev/null @@ -1,35 +0,0 @@ ---- a/drivers/mtd/devices/block2mtd.c -+++ b/drivers/mtd/devices/block2mtd.c -@@ -264,12 +264,13 @@ static int _open_bdev(struct block2mtd_d - bdev = blkdev_get_by_path(dev->devname, mode, dev); - #ifndef MODULE - if (IS_ERR(bdev)) { -+ dev_t devt; - - /* We might not have rootfs mounted at this point. Try - to resolve the device name by other means. */ - - wait_for_device_probe(); -- dev_t devt = name_to_dev_t(dev->devname); -+ devt = name_to_dev_t(dev->devname); - if (devt) - bdev = blkdev_get_by_dev(devt, mode, dev); - } -@@ -330,7 +331,7 @@ static int block2mtd_refresh(struct mtd_ - _close_bdev(dev); - - /* open the whole disk, issue a partition rescan, then */ -- bdev = blkdev_get_by_dev(devt, FMODE_WRITE | FMODE_READ); -+ bdev = blkdev_get_by_dev(devt, FMODE_WRITE | FMODE_READ, mtd); - if (!bdev || !bdev->bd_disk) - err = -EINVAL; - #ifndef CONFIG_MTD_BLOCK2MTD_MODULE -@@ -395,7 +396,7 @@ static struct block2mtd_dev *add_device( - dev->mtd.refresh_device = block2mtd_refresh; - - part = kzalloc(sizeof(struct mtd_partition), GFP_KERNEL); -- part->name = dev->mtd.name; -+ part->name = name; - part->offset = 0; - part->size = dev->mtd.size; - if (add_mtd_partitions(&dev->mtd, part, 1)) { diff --git a/target/linux/generic/patches-2.6.39/070-redboot_space.patch b/target/linux/generic/patches-2.6.39/070-redboot_space.patch deleted file mode 100644 index fb6700b07ef..00000000000 --- a/target/linux/generic/patches-2.6.39/070-redboot_space.patch +++ /dev/null @@ -1,30 +0,0 @@ ---- a/drivers/mtd/redboot.c -+++ b/drivers/mtd/redboot.c -@@ -267,14 +267,21 @@ static int parse_redboot_partitions(stru - #endif - names += strlen(names)+1; - --#ifdef CONFIG_MTD_REDBOOT_PARTS_UNALLOCATED - if(fl->next && fl->img->flash_base + fl->img->size + master->erasesize <= fl->next->img->flash_base) { -- i++; -- parts[i].offset = parts[i-1].size + parts[i-1].offset; -- parts[i].size = fl->next->img->flash_base - parts[i].offset; -- parts[i].name = nullname; -- } -+ if (!strcmp(parts[i].name, "rootfs")) { -+ parts[i].size = fl->next->img->flash_base; -+ parts[i].size &= ~(master->erasesize - 1); -+ parts[i].size -= parts[i].offset; -+#ifdef CONFIG_MTD_REDBOOT_PARTS_UNALLOCATED -+ nrparts--; -+ } else { -+ i++; -+ parts[i].offset = parts[i-1].size + parts[i-1].offset; -+ parts[i].size = fl->next->img->flash_base - parts[i].offset; -+ parts[i].name = nullname; - #endif -+ } -+ } - tmp_fl = fl; - fl = fl->next; - kfree(tmp_fl); diff --git a/target/linux/generic/patches-2.6.39/071-redboot_boardconfig.patch b/target/linux/generic/patches-2.6.39/071-redboot_boardconfig.patch deleted file mode 100644 index 9188cee29c9..00000000000 --- a/target/linux/generic/patches-2.6.39/071-redboot_boardconfig.patch +++ /dev/null @@ -1,60 +0,0 @@ ---- a/drivers/mtd/redboot.c -+++ b/drivers/mtd/redboot.c -@@ -29,6 +29,8 @@ - #include - #include - -+#define BOARD_CONFIG_PART "boardconfig" -+ - struct fis_image_desc { - unsigned char name[16]; // Null terminated name - uint32_t flash_base; // Address within FLASH of image -@@ -59,6 +61,7 @@ static int parse_redboot_partitions(stru - struct mtd_partition **pparts, - unsigned long fis_origin) - { -+ unsigned long max_offset = 0; - int nrparts = 0; - struct fis_image_desc *buf; - struct mtd_partition *parts; -@@ -227,14 +230,14 @@ static int parse_redboot_partitions(stru - } - } - #endif -- parts = kzalloc(sizeof(*parts)*nrparts + nulllen + namelen, GFP_KERNEL); -+ parts = kzalloc(sizeof(*parts) * (nrparts + 1) + nulllen + namelen + sizeof(BOARD_CONFIG_PART), GFP_KERNEL); - - if (!parts) { - ret = -ENOMEM; - goto out; - } - -- nullname = (char *)&parts[nrparts]; -+ nullname = (char *)&parts[nrparts + 1]; - #ifdef CONFIG_MTD_REDBOOT_PARTS_UNALLOCATED - if (nulllen > 0) { - strcpy(nullname, nullstring); -@@ -253,6 +256,8 @@ static int parse_redboot_partitions(stru - } - #endif - for ( ; iimg->size; - parts[i].offset = fl->img->flash_base; - parts[i].name = names; -@@ -286,6 +291,14 @@ static int parse_redboot_partitions(stru - fl = fl->next; - kfree(tmp_fl); - } -+ if(master->size - max_offset >= master->erasesize) -+ { -+ parts[nrparts].size = master->size - max_offset; -+ parts[nrparts].offset = max_offset; -+ parts[nrparts].name = names; -+ strcpy(names, BOARD_CONFIG_PART); -+ nrparts++; -+ } - ret = nrparts; - *pparts = parts; - out: diff --git a/target/linux/generic/patches-2.6.39/080-mtd_plat_nand_chip_fixup.patch b/target/linux/generic/patches-2.6.39/080-mtd_plat_nand_chip_fixup.patch deleted file mode 100644 index 0774e8389f5..00000000000 --- a/target/linux/generic/patches-2.6.39/080-mtd_plat_nand_chip_fixup.patch +++ /dev/null @@ -1,37 +0,0 @@ ---- - drivers/mtd/nand/plat_nand.c | 13 ++++++++++++- - include/linux/mtd/nand.h | 1 + - 2 files changed, 13 insertions(+), 1 deletion(-) - ---- a/include/linux/mtd/nand.h -+++ b/include/linux/mtd/nand.h -@@ -625,6 +625,7 @@ struct platform_nand_chip { - int chip_delay; - unsigned int options; - const char **part_probe_types; -+ int (*chip_fixup)(struct mtd_info *mtd); - void (*set_parts)(uint64_t size, struct platform_nand_chip *chip); - void *priv; - }; ---- a/drivers/mtd/nand/plat_nand.c -+++ b/drivers/mtd/nand/plat_nand.c -@@ -96,7 +96,18 @@ static int __devinit plat_nand_probe(str - } - - /* Scan to find existence of the device */ -- if (nand_scan(&data->mtd, pdata->chip.nr_chips)) { -+ if (nand_scan_ident(&data->mtd, pdata->chip.nr_chips, NULL)) { -+ res = -ENXIO; -+ goto out; -+ } -+ -+ if (pdata->chip.chip_fixup) { -+ res = pdata->chip.chip_fixup(&data->mtd); -+ if (res) -+ goto out; -+ } -+ -+ if (nand_scan_tail(&data->mtd)) { - err = -ENXIO; - goto out; - } diff --git a/target/linux/generic/patches-2.6.39/081-mtd_myloader_partition_parser.patch b/target/linux/generic/patches-2.6.39/081-mtd_myloader_partition_parser.patch deleted file mode 100644 index 07267eaa29e..00000000000 --- a/target/linux/generic/patches-2.6.39/081-mtd_myloader_partition_parser.patch +++ /dev/null @@ -1,35 +0,0 @@ ---- a/drivers/mtd/Kconfig -+++ b/drivers/mtd/Kconfig -@@ -176,6 +176,22 @@ config MTD_AR7_PARTS - - endif # MTD_PARTITIONS - -+config MTD_MYLOADER_PARTS -+ tristate "MyLoader partition parsing" -+ depends on MTD_PARTITIONS && (ADM5120 || ATHEROS_AR231X || ATHEROS_AR71XX) -+ ---help--- -+ MyLoader is a bootloader which allows the user to define partitions -+ in flash devices, by putting a table in the second erase block -+ on the device, similar to a partition table. This table gives the -+ offsets and lengths of the user defined partitions. -+ -+ If you need code which can detect and parse these tables, and -+ register MTD 'partitions' corresponding to each image detected, -+ enable this option. -+ -+ You will still need the parsing functions to be called by the driver -+ for your particular device. It won't happen automatically. -+ - comment "User Modules And Translation Layers" - - config MTD_CHAR ---- a/drivers/mtd/Makefile -+++ b/drivers/mtd/Makefile -@@ -12,6 +12,7 @@ obj-$(CONFIG_MTD_REDBOOT_PARTS) += redbo - obj-$(CONFIG_MTD_CMDLINE_PARTS) += cmdlinepart.o - obj-$(CONFIG_MTD_AFS_PARTS) += afs.o - obj-$(CONFIG_MTD_AR7_PARTS) += ar7part.o -+obj-$(CONFIG_MTD_MYLOADER_PARTS) += myloader.o - - # 'Users' - code which presents functionality to userspace. - obj-$(CONFIG_MTD_CHAR) += mtdchar.o diff --git a/target/linux/generic/patches-2.6.39/082-mtd_info_move_forward_decl.patch b/target/linux/generic/patches-2.6.39/082-mtd_info_move_forward_decl.patch deleted file mode 100644 index 13f0a217d47..00000000000 --- a/target/linux/generic/patches-2.6.39/082-mtd_info_move_forward_decl.patch +++ /dev/null @@ -1,18 +0,0 @@ ---- a/include/linux/mtd/partitions.h -+++ b/include/linux/mtd/partitions.h -@@ -33,6 +33,7 @@ - * Note: writeable partitions require their size and offset be - * erasesize aligned (e.g. use MTDPART_OFS_NEXTBLK). - */ -+struct mtd_info; - - struct mtd_partition; - struct mtd_partition { -@@ -49,7 +50,6 @@ struct mtd_partition { - #define MTDPART_SIZ_FULL (0) - - --struct mtd_info; - - int add_mtd_partitions(struct mtd_info *, const struct mtd_partition *, int); - int del_mtd_partitions(struct mtd_info *); diff --git a/target/linux/generic/patches-2.6.39/083-mtd_fix_nand_correct_data_return_code.patch b/target/linux/generic/patches-2.6.39/083-mtd_fix_nand_correct_data_return_code.patch deleted file mode 100644 index f630059e876..00000000000 --- a/target/linux/generic/patches-2.6.39/083-mtd_fix_nand_correct_data_return_code.patch +++ /dev/null @@ -1,12 +0,0 @@ ---- a/drivers/mtd/nand/nand_ecc.c -+++ b/drivers/mtd/nand/nand_ecc.c -@@ -507,8 +507,7 @@ int __nand_correct_data(unsigned char *b - if ((bitsperbyte[b0] + bitsperbyte[b1] + bitsperbyte[b2]) == 1) - return 1; /* error in ecc data; no action needed */ - -- printk(KERN_ERR "uncorrectable error : "); -- return -1; -+ return -EBADMSG; - } - EXPORT_SYMBOL(__nand_correct_data); - diff --git a/target/linux/generic/patches-2.6.39/084-mtd_m25p80_add_pm25lv_flash_support.patch b/target/linux/generic/patches-2.6.39/084-mtd_m25p80_add_pm25lv_flash_support.patch deleted file mode 100644 index ae4f922190c..00000000000 --- a/target/linux/generic/patches-2.6.39/084-mtd_m25p80_add_pm25lv_flash_support.patch +++ /dev/null @@ -1,39 +0,0 @@ ---- a/drivers/mtd/devices/m25p80.c -+++ b/drivers/mtd/devices/m25p80.c -@@ -43,6 +43,7 @@ - #define OPCODE_BE_4K 0x20 /* Erase 4KiB block */ - #define OPCODE_BE_32K 0x52 /* Erase 32KiB block */ - #define OPCODE_CHIP_ERASE 0xc7 /* Erase whole flash chip */ -+#define OPCODE_BE_4K_PMC 0xd7 /* Erase 4KiB block on PMC chips*/ - #define OPCODE_SE 0xd8 /* Sector erase (usually 64KiB) */ - #define OPCODE_RDID 0x9f /* Read JEDEC ID */ - -@@ -617,6 +618,7 @@ struct flash_info { - u16 flags; - #define SECT_4K 0x01 /* OPCODE_BE_4K works uniformly */ - #define M25P_NO_ERASE 0x02 /* No erase command needed */ -+#define SECT_4K_PMC 0x04 /* OPCODE_BE_4K_PMC works uniformly */ - }; - - #define INFO(_jedec_id, _ext_id, _sector_size, _n_sectors, _flags) \ -@@ -675,6 +677,10 @@ static const struct spi_device_id m25p_i - { "mx25l25635e", INFO(0xc22019, 0, 64 * 1024, 512, 0) }, - { "mx25l25655e", INFO(0xc22619, 0, 64 * 1024, 512, 0) }, - -+ /* PMC -- pm25x "blocks" are 32K, sectors are 4K */ -+ { "pm25lv512", INFO(0, 0, 32 * 1024, 2, SECT_4K_PMC) }, -+ { "pm25lv010", INFO(0, 0, 32 * 1024, 4, SECT_4K_PMC) }, -+ - /* Spansion -- single (large) sector size only, at least - * for the chips listed here (without boot sectors). - */ -@@ -897,6 +903,9 @@ static int __devinit m25p_probe(struct s - if (info->flags & SECT_4K) { - flash->erase_opcode = OPCODE_BE_4K; - flash->mtd.erasesize = 4096; -+ } else if (info->flags & SECT_4K_PMC) { -+ flash->erase_opcode = OPCODE_BE_4K_PMC; -+ flash->mtd.erasesize = 4096; - } else { - flash->erase_opcode = OPCODE_SE; - flash->mtd.erasesize = info->sector_size; diff --git a/target/linux/generic/patches-2.6.39/091-mtd-m25p80-add-MX25L1606E-support.patch b/target/linux/generic/patches-2.6.39/091-mtd-m25p80-add-MX25L1606E-support.patch deleted file mode 100644 index b5937a35571..00000000000 --- a/target/linux/generic/patches-2.6.39/091-mtd-m25p80-add-MX25L1606E-support.patch +++ /dev/null @@ -1,20 +0,0 @@ -From da9c4c174ad5086e5ccff23a5ffd1f9750b77c85 Mon Sep 17 00:00:00 2001 -From: Gabor Juhos -Date: Thu, 24 Mar 2011 21:43:48 +0100 -Subject: [PATCH] mtd: m25p80: add support for the MX25L1606E chip - -Signed-off-by: Gabor Juhos ---- - drivers/mtd/devices/m25p80.c | 1 + - 1 files changed, 1 insertions(+), 0 deletions(-) - ---- a/drivers/mtd/devices/m25p80.c -+++ b/drivers/mtd/devices/m25p80.c -@@ -670,6 +670,7 @@ static const struct spi_device_id m25p_i - /* Macronix */ - { "mx25l4005a", INFO(0xc22013, 0, 64 * 1024, 8, SECT_4K) }, - { "mx25l8005", INFO(0xc22014, 0, 64 * 1024, 16, 0) }, -+ { "mx25l1606e", INFO(0xc22015, 0, 64 * 1024, 32, SECT_4K) }, - { "mx25l3205d", INFO(0xc22016, 0, 64 * 1024, 64, 0) }, - { "mx25l6405d", INFO(0xc22017, 0, 64 * 1024, 128, 0) }, - { "mx25l12805d", INFO(0xc22018, 0, 64 * 1024, 256, 0) }, diff --git a/target/linux/generic/patches-2.6.39/100-netfilter_layer7_2.22.patch b/target/linux/generic/patches-2.6.39/100-netfilter_layer7_2.22.patch deleted file mode 100644 index 2bebf646cbd..00000000000 --- a/target/linux/generic/patches-2.6.39/100-netfilter_layer7_2.22.patch +++ /dev/null @@ -1,2132 +0,0 @@ ---- a/net/netfilter/Kconfig -+++ b/net/netfilter/Kconfig -@@ -1020,6 +1020,27 @@ config NETFILTER_XT_MATCH_STATE - - To compile it as a module, choose M here. If unsure, say N. - -+config NETFILTER_XT_MATCH_LAYER7 -+ tristate '"layer7" match support' -+ depends on NETFILTER_XTABLES -+ depends on EXPERIMENTAL && (IP_NF_CONNTRACK || NF_CONNTRACK) -+ depends on NETFILTER_ADVANCED -+ help -+ Say Y if you want to be able to classify connections (and their -+ packets) based on regular expression matching of their application -+ layer data. This is one way to classify applications such as -+ peer-to-peer filesharing systems that do not always use the same -+ port. -+ -+ To compile it as a module, choose M here. If unsure, say N. -+ -+config NETFILTER_XT_MATCH_LAYER7_DEBUG -+ bool 'Layer 7 debugging output' -+ depends on NETFILTER_XT_MATCH_LAYER7 -+ help -+ Say Y to get lots of debugging output. -+ -+ - config NETFILTER_XT_MATCH_STATISTIC - tristate '"statistic" match support' - depends on NETFILTER_ADVANCED ---- a/net/netfilter/Makefile -+++ b/net/netfilter/Makefile -@@ -102,6 +102,7 @@ obj-$(CONFIG_NETFILTER_XT_MATCH_RECENT) - obj-$(CONFIG_NETFILTER_XT_MATCH_SCTP) += xt_sctp.o - obj-$(CONFIG_NETFILTER_XT_MATCH_SOCKET) += xt_socket.o - obj-$(CONFIG_NETFILTER_XT_MATCH_STATE) += xt_state.o -+obj-$(CONFIG_NETFILTER_XT_MATCH_LAYER7) += xt_layer7.o - obj-$(CONFIG_NETFILTER_XT_MATCH_STATISTIC) += xt_statistic.o - obj-$(CONFIG_NETFILTER_XT_MATCH_STRING) += xt_string.o - obj-$(CONFIG_NETFILTER_XT_MATCH_TCPMSS) += xt_tcpmss.o ---- /dev/null -+++ b/net/netfilter/xt_layer7.c -@@ -0,0 +1,666 @@ -+/* -+ Kernel module to match application layer (OSI layer 7) data in connections. -+ -+ http://l7-filter.sf.net -+ -+ (C) 2003-2009 Matthew Strait and Ethan Sommer. -+ -+ This program is free software; you can redistribute it and/or -+ modify it under the terms of the GNU General Public License -+ as published by the Free Software Foundation; either version -+ 2 of the License, or (at your option) any later version. -+ http://www.gnu.org/licenses/gpl.txt -+ -+ Based on ipt_string.c (C) 2000 Emmanuel Roger , -+ xt_helper.c (C) 2002 Harald Welte and cls_layer7.c (C) 2003 Matthew Strait, -+ Ethan Sommer, Justin Levandoski. -+*/ -+ -+#include -+#include -+#include -+#include -+#include -+#include -+#include -+#include -+#include -+#if LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 27) -+#include -+#include -+#endif -+#include -+#include -+#include -+#include -+ -+#include "regexp/regexp.c" -+ -+MODULE_LICENSE("GPL"); -+MODULE_AUTHOR("Matthew Strait , Ethan Sommer "); -+MODULE_DESCRIPTION("iptables application layer match module"); -+MODULE_ALIAS("ipt_layer7"); -+MODULE_VERSION("2.21"); -+ -+static int maxdatalen = 2048; // this is the default -+module_param(maxdatalen, int, 0444); -+MODULE_PARM_DESC(maxdatalen, "maximum bytes of data looked at by l7-filter"); -+#ifdef CONFIG_NETFILTER_XT_MATCH_LAYER7_DEBUG -+ #define DPRINTK(format,args...) printk(format,##args) -+#else -+ #define DPRINTK(format,args...) -+#endif -+ -+/* Number of packets whose data we look at. -+This can be modified through /proc/net/layer7_numpackets */ -+static int num_packets = 10; -+ -+static struct pattern_cache { -+ char * regex_string; -+ regexp * pattern; -+ struct pattern_cache * next; -+} * first_pattern_cache = NULL; -+ -+DEFINE_SPINLOCK(l7_lock); -+ -+static int total_acct_packets(struct nf_conn *ct) -+{ -+#if LINUX_VERSION_CODE <= KERNEL_VERSION(2, 6, 26) -+ BUG_ON(ct == NULL); -+ return (ct->counters[IP_CT_DIR_ORIGINAL].packets + ct->counters[IP_CT_DIR_REPLY].packets); -+#else -+ struct nf_conn_counter *acct; -+ -+ BUG_ON(ct == NULL); -+ acct = nf_conn_acct_find(ct); -+ if (!acct) -+ return 0; -+ return (acct[IP_CT_DIR_ORIGINAL].packets + acct[IP_CT_DIR_REPLY].packets); -+#endif -+} -+ -+#ifdef CONFIG_IP_NF_MATCH_LAYER7_DEBUG -+/* Converts an unfriendly string into a friendly one by -+replacing unprintables with periods and all whitespace with " ". */ -+static char * friendly_print(unsigned char * s) -+{ -+ char * f = kmalloc(strlen(s) + 1, GFP_ATOMIC); -+ int i; -+ -+ if(!f) { -+ if (net_ratelimit()) -+ printk(KERN_ERR "layer7: out of memory in " -+ "friendly_print, bailing.\n"); -+ return NULL; -+ } -+ -+ for(i = 0; i < strlen(s); i++){ -+ if(isprint(s[i]) && s[i] < 128) f[i] = s[i]; -+ else if(isspace(s[i])) f[i] = ' '; -+ else f[i] = '.'; -+ } -+ f[i] = '\0'; -+ return f; -+} -+ -+static char dec2hex(int i) -+{ -+ switch (i) { -+ case 0 ... 9: -+ return (i + '0'); -+ break; -+ case 10 ... 15: -+ return (i - 10 + 'a'); -+ break; -+ default: -+ if (net_ratelimit()) -+ printk("layer7: Problem in dec2hex\n"); -+ return '\0'; -+ } -+} -+ -+static char * hex_print(unsigned char * s) -+{ -+ char * g = kmalloc(strlen(s)*3 + 1, GFP_ATOMIC); -+ int i; -+ -+ if(!g) { -+ if (net_ratelimit()) -+ printk(KERN_ERR "layer7: out of memory in hex_print, " -+ "bailing.\n"); -+ return NULL; -+ } -+ -+ for(i = 0; i < strlen(s); i++) { -+ g[i*3 ] = dec2hex(s[i]/16); -+ g[i*3 + 1] = dec2hex(s[i]%16); -+ g[i*3 + 2] = ' '; -+ } -+ g[i*3] = '\0'; -+ -+ return g; -+} -+#endif // DEBUG -+ -+/* Use instead of regcomp. As we expect to be seeing the same regexps over and -+over again, it make sense to cache the results. */ -+static regexp * compile_and_cache(const char * regex_string, -+ const char * protocol) -+{ -+ struct pattern_cache * node = first_pattern_cache; -+ struct pattern_cache * last_pattern_cache = first_pattern_cache; -+ struct pattern_cache * tmp; -+ unsigned int len; -+ -+ while (node != NULL) { -+ if (!strcmp(node->regex_string, regex_string)) -+ return node->pattern; -+ -+ last_pattern_cache = node;/* points at the last non-NULL node */ -+ node = node->next; -+ } -+ -+ /* If we reach the end of the list, then we have not yet cached -+ the pattern for this regex. Let's do that now. -+ Be paranoid about running out of memory to avoid list corruption. */ -+ tmp = kmalloc(sizeof(struct pattern_cache), GFP_ATOMIC); -+ -+ if(!tmp) { -+ if (net_ratelimit()) -+ printk(KERN_ERR "layer7: out of memory in " -+ "compile_and_cache, bailing.\n"); -+ return NULL; -+ } -+ -+ tmp->regex_string = kmalloc(strlen(regex_string) + 1, GFP_ATOMIC); -+ tmp->pattern = kmalloc(sizeof(struct regexp), GFP_ATOMIC); -+ tmp->next = NULL; -+ -+ if(!tmp->regex_string || !tmp->pattern) { -+ if (net_ratelimit()) -+ printk(KERN_ERR "layer7: out of memory in " -+ "compile_and_cache, bailing.\n"); -+ kfree(tmp->regex_string); -+ kfree(tmp->pattern); -+ kfree(tmp); -+ return NULL; -+ } -+ -+ /* Ok. The new node is all ready now. */ -+ node = tmp; -+ -+ if(first_pattern_cache == NULL) /* list is empty */ -+ first_pattern_cache = node; /* make node the beginning */ -+ else -+ last_pattern_cache->next = node; /* attach node to the end */ -+ -+ /* copy the string and compile the regex */ -+ len = strlen(regex_string); -+ DPRINTK("About to compile this: \"%s\"\n", regex_string); -+ node->pattern = regcomp((char *)regex_string, &len); -+ if ( !node->pattern ) { -+ if (net_ratelimit()) -+ printk(KERN_ERR "layer7: Error compiling regexp " -+ "\"%s\" (%s)\n", -+ regex_string, protocol); -+ /* pattern is now cached as NULL, so we won't try again. */ -+ } -+ -+ strcpy(node->regex_string, regex_string); -+ return node->pattern; -+} -+ -+static int can_handle(const struct sk_buff *skb) -+{ -+ if(!ip_hdr(skb)) /* not IP */ -+ return 0; -+ if(ip_hdr(skb)->protocol != IPPROTO_TCP && -+ ip_hdr(skb)->protocol != IPPROTO_UDP && -+ ip_hdr(skb)->protocol != IPPROTO_ICMP) -+ return 0; -+ return 1; -+} -+ -+/* Returns offset the into the skb->data that the application data starts */ -+static int app_data_offset(const struct sk_buff *skb) -+{ -+ /* In case we are ported somewhere (ebtables?) where ip_hdr(skb) -+ isn't set, this can be gotten from 4*(skb->data[0] & 0x0f) as well. */ -+ int ip_hl = 4*ip_hdr(skb)->ihl; -+ -+ if( ip_hdr(skb)->protocol == IPPROTO_TCP ) { -+ /* 12 == offset into TCP header for the header length field. -+ Can't get this with skb->h.th->doff because the tcphdr -+ struct doesn't get set when routing (this is confirmed to be -+ true in Netfilter as well as QoS.) */ -+ int tcp_hl = 4*(skb->data[ip_hl + 12] >> 4); -+ -+ return ip_hl + tcp_hl; -+ } else if( ip_hdr(skb)->protocol == IPPROTO_UDP ) { -+ return ip_hl + 8; /* UDP header is always 8 bytes */ -+ } else if( ip_hdr(skb)->protocol == IPPROTO_ICMP ) { -+ return ip_hl + 8; /* ICMP header is 8 bytes */ -+ } else { -+ if (net_ratelimit()) -+ printk(KERN_ERR "layer7: tried to handle unknown " -+ "protocol!\n"); -+ return ip_hl + 8; /* something reasonable */ -+ } -+} -+ -+/* handles whether there's a match when we aren't appending data anymore */ -+static int match_no_append(struct nf_conn * conntrack, -+ struct nf_conn * master_conntrack, -+ enum ip_conntrack_info ctinfo, -+ enum ip_conntrack_info master_ctinfo, -+ const struct xt_layer7_info * info) -+{ -+ /* If we're in here, throw the app data away */ -+ if(master_conntrack->layer7.app_data != NULL) { -+ -+ #ifdef CONFIG_IP_NF_MATCH_LAYER7_DEBUG -+ if(!master_conntrack->layer7.app_proto) { -+ char * f = -+ friendly_print(master_conntrack->layer7.app_data); -+ char * g = -+ hex_print(master_conntrack->layer7.app_data); -+ DPRINTK("\nl7-filter gave up after %d bytes " -+ "(%d packets):\n%s\n", -+ strlen(f), total_acct_packets(master_conntrack), f); -+ kfree(f); -+ DPRINTK("In hex: %s\n", g); -+ kfree(g); -+ } -+ #endif -+ -+ kfree(master_conntrack->layer7.app_data); -+ master_conntrack->layer7.app_data = NULL; /* don't free again */ -+ } -+ -+ if(master_conntrack->layer7.app_proto){ -+ /* Here child connections set their .app_proto (for /proc) */ -+ if(!conntrack->layer7.app_proto) { -+ conntrack->layer7.app_proto = -+ kmalloc(strlen(master_conntrack->layer7.app_proto)+1, -+ GFP_ATOMIC); -+ if(!conntrack->layer7.app_proto){ -+ if (net_ratelimit()) -+ printk(KERN_ERR "layer7: out of memory " -+ "in match_no_append, " -+ "bailing.\n"); -+ return 1; -+ } -+ strcpy(conntrack->layer7.app_proto, -+ master_conntrack->layer7.app_proto); -+ } -+ -+ return (!strcmp(master_conntrack->layer7.app_proto, -+ info->protocol)); -+ } -+ else { -+ /* If not classified, set to "unknown" to distinguish from -+ connections that are still being tested. */ -+ master_conntrack->layer7.app_proto = -+ kmalloc(strlen("unknown")+1, GFP_ATOMIC); -+ if(!master_conntrack->layer7.app_proto){ -+ if (net_ratelimit()) -+ printk(KERN_ERR "layer7: out of memory in " -+ "match_no_append, bailing.\n"); -+ return 1; -+ } -+ strcpy(master_conntrack->layer7.app_proto, "unknown"); -+ return 0; -+ } -+} -+ -+/* add the new app data to the conntrack. Return number of bytes added. */ -+static int add_data(struct nf_conn * master_conntrack, -+ char * app_data, int appdatalen) -+{ -+ int length = 0, i; -+ int oldlength = master_conntrack->layer7.app_data_len; -+ -+ /* This is a fix for a race condition by Deti Fliegl. However, I'm not -+ clear on whether the race condition exists or whether this really -+ fixes it. I might just be being dense... Anyway, if it's not really -+ a fix, all it does is waste a very small amount of time. */ -+ if(!master_conntrack->layer7.app_data) return 0; -+ -+ /* Strip nulls. Make everything lower case (our regex lib doesn't -+ do case insensitivity). Add it to the end of the current data. */ -+ for(i = 0; i < maxdatalen-oldlength-1 && -+ i < appdatalen; i++) { -+ if(app_data[i] != '\0') { -+ /* the kernel version of tolower mungs 'upper ascii' */ -+ master_conntrack->layer7.app_data[length+oldlength] = -+ isascii(app_data[i])? -+ tolower(app_data[i]) : app_data[i]; -+ length++; -+ } -+ } -+ -+ master_conntrack->layer7.app_data[length+oldlength] = '\0'; -+ master_conntrack->layer7.app_data_len = length + oldlength; -+ -+ return length; -+} -+ -+/* taken from drivers/video/modedb.c */ -+static int my_atoi(const char *s) -+{ -+ int val = 0; -+ -+ for (;; s++) { -+ switch (*s) { -+ case '0'...'9': -+ val = 10*val+(*s-'0'); -+ break; -+ default: -+ return val; -+ } -+ } -+} -+ -+/* write out num_packets to userland. */ -+static int layer7_read_proc(char* page, char ** start, off_t off, int count, -+ int* eof, void * data) -+{ -+ if(num_packets > 99 && net_ratelimit()) -+ printk(KERN_ERR "layer7: NOT REACHED. num_packets too big\n"); -+ -+ page[0] = num_packets/10 + '0'; -+ page[1] = num_packets%10 + '0'; -+ page[2] = '\n'; -+ page[3] = '\0'; -+ -+ *eof=1; -+ -+ return 3; -+} -+ -+/* Read in num_packets from userland */ -+static int layer7_write_proc(struct file* file, const char* buffer, -+ unsigned long count, void *data) -+{ -+ char * foo = kmalloc(count, GFP_ATOMIC); -+ -+ if(!foo){ -+ if (net_ratelimit()) -+ printk(KERN_ERR "layer7: out of memory, bailing. " -+ "num_packets unchanged.\n"); -+ return count; -+ } -+ -+ if(copy_from_user(foo, buffer, count)) { -+ return -EFAULT; -+ } -+ -+ -+ num_packets = my_atoi(foo); -+ kfree (foo); -+ -+ /* This has an arbitrary limit to make the math easier. I'm lazy. -+ But anyway, 99 is a LOT! If you want more, you're doing it wrong! */ -+ if(num_packets > 99) { -+ printk(KERN_WARNING "layer7: num_packets can't be > 99.\n"); -+ num_packets = 99; -+ } else if(num_packets < 1) { -+ printk(KERN_WARNING "layer7: num_packets can't be < 1.\n"); -+ num_packets = 1; -+ } -+ -+ return count; -+} -+ -+static bool -+#if LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 28) -+match(const struct sk_buff *skbin, const struct xt_match_param *par) -+#else -+match(const struct sk_buff *skbin, -+ const struct net_device *in, -+ const struct net_device *out, -+ const struct xt_match *match, -+ const void *matchinfo, -+ int offset, -+ unsigned int protoff, -+ bool *hotdrop) -+#endif -+{ -+ /* sidestep const without getting a compiler warning... */ -+ struct sk_buff * skb = (struct sk_buff *)skbin; -+ -+ const struct xt_layer7_info * info = -+ #if LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 28) -+ par->matchinfo; -+ #else -+ matchinfo; -+ #endif -+ -+ enum ip_conntrack_info master_ctinfo, ctinfo; -+ struct nf_conn *master_conntrack, *conntrack; -+ unsigned char * app_data; -+ unsigned int pattern_result, appdatalen; -+ regexp * comppattern; -+ -+ /* Be paranoid/incompetent - lock the entire match function. */ -+ spin_lock_bh(&l7_lock); -+ -+ if(!can_handle(skb)){ -+ DPRINTK("layer7: This is some protocol I can't handle.\n"); -+ spin_unlock_bh(&l7_lock); -+ return info->invert; -+ } -+ -+ /* Treat parent & all its children together as one connection, except -+ for the purpose of setting conntrack->layer7.app_proto in the actual -+ connection. This makes /proc/net/ip_conntrack more satisfying. */ -+ if(!(conntrack = nf_ct_get(skb, &ctinfo)) || -+ !(master_conntrack=nf_ct_get(skb,&master_ctinfo))){ -+ DPRINTK("layer7: couldn't get conntrack.\n"); -+ spin_unlock_bh(&l7_lock); -+ return info->invert; -+ } -+ -+ /* Try to get a master conntrack (and its master etc) for FTP, etc. */ -+ while (master_ct(master_conntrack) != NULL) -+ master_conntrack = master_ct(master_conntrack); -+ -+ /* if we've classified it or seen too many packets */ -+ if(total_acct_packets(master_conntrack) > num_packets || -+ master_conntrack->layer7.app_proto) { -+ -+ pattern_result = match_no_append(conntrack, master_conntrack, -+ ctinfo, master_ctinfo, info); -+ -+ /* skb->cb[0] == seen. Don't do things twice if there are -+ multiple l7 rules. I'm not sure that using cb for this purpose -+ is correct, even though it says "put your private variables -+ there". But it doesn't look like it is being used for anything -+ else in the skbs that make it here. */ -+ skb->cb[0] = 1; /* marking it seen here's probably irrelevant */ -+ -+ spin_unlock_bh(&l7_lock); -+ return (pattern_result ^ info->invert); -+ } -+ -+ if(skb_is_nonlinear(skb)){ -+ if(skb_linearize(skb) != 0){ -+ if (net_ratelimit()) -+ printk(KERN_ERR "layer7: failed to linearize " -+ "packet, bailing.\n"); -+ spin_unlock_bh(&l7_lock); -+ return info->invert; -+ } -+ } -+ -+ /* now that the skb is linearized, it's safe to set these. */ -+ app_data = skb->data + app_data_offset(skb); -+ appdatalen = skb_tail_pointer(skb) - app_data; -+ -+ /* the return value gets checked later, when we're ready to use it */ -+ comppattern = compile_and_cache(info->pattern, info->protocol); -+ -+ /* On the first packet of a connection, allocate space for app data */ -+ if(total_acct_packets(master_conntrack) == 1 && !skb->cb[0] && -+ !master_conntrack->layer7.app_data){ -+ master_conntrack->layer7.app_data = -+ kmalloc(maxdatalen, GFP_ATOMIC); -+ if(!master_conntrack->layer7.app_data){ -+ if (net_ratelimit()) -+ printk(KERN_ERR "layer7: out of memory in " -+ "match, bailing.\n"); -+ spin_unlock_bh(&l7_lock); -+ return info->invert; -+ } -+ -+ master_conntrack->layer7.app_data[0] = '\0'; -+ } -+ -+ /* Can be here, but unallocated, if numpackets is increased near -+ the beginning of a connection */ -+ if(master_conntrack->layer7.app_data == NULL){ -+ spin_unlock_bh(&l7_lock); -+ return info->invert; /* unmatched */ -+ } -+ -+ if(!skb->cb[0]){ -+ int newbytes; -+ newbytes = add_data(master_conntrack, app_data, appdatalen); -+ -+ if(newbytes == 0) { /* didn't add any data */ -+ skb->cb[0] = 1; -+ /* Didn't match before, not going to match now */ -+ spin_unlock_bh(&l7_lock); -+ return info->invert; -+ } -+ } -+ -+ /* If looking for "unknown", then never match. "Unknown" means that -+ we've given up; we're still trying with these packets. */ -+ if(!strcmp(info->protocol, "unknown")) { -+ pattern_result = 0; -+ /* If looking for "unset", then always match. "Unset" means that we -+ haven't yet classified the connection. */ -+ } else if(!strcmp(info->protocol, "unset")) { -+ pattern_result = 2; -+ DPRINTK("layer7: matched unset: not yet classified " -+ "(%d/%d packets)\n", -+ total_acct_packets(master_conntrack), num_packets); -+ /* If the regexp failed to compile, don't bother running it */ -+ } else if(comppattern && -+ regexec(comppattern, master_conntrack->layer7.app_data)){ -+ DPRINTK("layer7: matched %s\n", info->protocol); -+ pattern_result = 1; -+ } else pattern_result = 0; -+ -+ if(pattern_result == 1) { -+ master_conntrack->layer7.app_proto = -+ kmalloc(strlen(info->protocol)+1, GFP_ATOMIC); -+ if(!master_conntrack->layer7.app_proto){ -+ if (net_ratelimit()) -+ printk(KERN_ERR "layer7: out of memory in " -+ "match, bailing.\n"); -+ spin_unlock_bh(&l7_lock); -+ return (pattern_result ^ info->invert); -+ } -+ strcpy(master_conntrack->layer7.app_proto, info->protocol); -+ } else if(pattern_result > 1) { /* cleanup from "unset" */ -+ pattern_result = 1; -+ } -+ -+ /* mark the packet seen */ -+ skb->cb[0] = 1; -+ -+ spin_unlock_bh(&l7_lock); -+ return (pattern_result ^ info->invert); -+} -+ -+// load nf_conntrack_ipv4 -+#if LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 28) -+static bool check(const struct xt_mtchk_param *par) -+{ -+ if (nf_ct_l3proto_try_module_get(par->match->family) < 0) { -+ printk(KERN_WARNING "can't load conntrack support for " -+ "proto=%d\n", par->match->family); -+#else -+static bool check(const char *tablename, const void *inf, -+ const struct xt_match *match, void *matchinfo, -+ unsigned int hook_mask) -+{ -+ if (nf_ct_l3proto_try_module_get(match->family) < 0) { -+ printk(KERN_WARNING "can't load conntrack support for " -+ "proto=%d\n", match->family); -+#endif -+ return 0; -+ } -+ return 1; -+} -+ -+ -+#if LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 28) -+ static void destroy(const struct xt_mtdtor_param *par) -+ { -+ nf_ct_l3proto_module_put(par->match->family); -+ } -+#else -+ static void destroy(const struct xt_match *match, void *matchinfo) -+ { -+ nf_ct_l3proto_module_put(match->family); -+ } -+#endif -+ -+static struct xt_match xt_layer7_match[] __read_mostly = { -+{ -+ .name = "layer7", -+ .family = AF_INET, -+ .checkentry = check, -+ .match = match, -+ .destroy = destroy, -+ .matchsize = sizeof(struct xt_layer7_info), -+ .me = THIS_MODULE -+} -+}; -+ -+static void layer7_cleanup_proc(void) -+{ -+ remove_proc_entry("layer7_numpackets", init_net.proc_net); -+} -+ -+/* register the proc file */ -+static void layer7_init_proc(void) -+{ -+ struct proc_dir_entry* entry; -+ entry = create_proc_entry("layer7_numpackets", 0644, init_net.proc_net); -+ entry->read_proc = layer7_read_proc; -+ entry->write_proc = layer7_write_proc; -+} -+ -+static int __init xt_layer7_init(void) -+{ -+ need_conntrack(); -+ -+ layer7_init_proc(); -+ if(maxdatalen < 1) { -+ printk(KERN_WARNING "layer7: maxdatalen can't be < 1, " -+ "using 1\n"); -+ maxdatalen = 1; -+ } -+ /* This is not a hard limit. It's just here to prevent people from -+ bringing their slow machines to a grinding halt. */ -+ else if(maxdatalen > 65536) { -+ printk(KERN_WARNING "layer7: maxdatalen can't be > 65536, " -+ "using 65536\n"); -+ maxdatalen = 65536; -+ } -+ return xt_register_matches(xt_layer7_match, -+ ARRAY_SIZE(xt_layer7_match)); -+} -+ -+static void __exit xt_layer7_fini(void) -+{ -+ layer7_cleanup_proc(); -+ xt_unregister_matches(xt_layer7_match, ARRAY_SIZE(xt_layer7_match)); -+} -+ -+module_init(xt_layer7_init); -+module_exit(xt_layer7_fini); ---- /dev/null -+++ b/net/netfilter/regexp/regexp.c -@@ -0,0 +1,1197 @@ -+/* -+ * regcomp and regexec -- regsub and regerror are elsewhere -+ * @(#)regexp.c 1.3 of 18 April 87 -+ * -+ * Copyright (c) 1986 by University of Toronto. -+ * Written by Henry Spencer. Not derived from licensed software. -+ * -+ * Permission is granted to anyone to use this software for any -+ * purpose on any computer system, and to redistribute it freely, -+ * subject to the following restrictions: -+ * -+ * 1. The author is not responsible for the consequences of use of -+ * this software, no matter how awful, even if they arise -+ * from defects in it. -+ * -+ * 2. The origin of this software must not be misrepresented, either -+ * by explicit claim or by omission. -+ * -+ * 3. Altered versions must be plainly marked as such, and must not -+ * be misrepresented as being the original software. -+ * -+ * Beware that some of this code is subtly aware of the way operator -+ * precedence is structured in regular expressions. Serious changes in -+ * regular-expression syntax might require a total rethink. -+ * -+ * This code was modified by Ethan Sommer to work within the kernel -+ * (it now uses kmalloc etc..) -+ * -+ * Modified slightly by Matthew Strait to use more modern C. -+ */ -+ -+#include "regexp.h" -+#include "regmagic.h" -+ -+/* added by ethan and matt. Lets it work in both kernel and user space. -+(So iptables can use it, for instance.) Yea, it goes both ways... */ -+#if __KERNEL__ -+ #define malloc(foo) kmalloc(foo,GFP_ATOMIC) -+#else -+ #define printk(format,args...) printf(format,##args) -+#endif -+ -+void regerror(char * s) -+{ -+ printk("<3>Regexp: %s\n", s); -+ /* NOTREACHED */ -+} -+ -+/* -+ * The "internal use only" fields in regexp.h are present to pass info from -+ * compile to execute that permits the execute phase to run lots faster on -+ * simple cases. They are: -+ * -+ * regstart char that must begin a match; '\0' if none obvious -+ * reganch is the match anchored (at beginning-of-line only)? -+ * regmust string (pointer into program) that match must include, or NULL -+ * regmlen length of regmust string -+ * -+ * Regstart and reganch permit very fast decisions on suitable starting points -+ * for a match, cutting down the work a lot. Regmust permits fast rejection -+ * of lines that cannot possibly match. The regmust tests are costly enough -+ * that regcomp() supplies a regmust only if the r.e. contains something -+ * potentially expensive (at present, the only such thing detected is * or + -+ * at the start of the r.e., which can involve a lot of backup). Regmlen is -+ * supplied because the test in regexec() needs it and regcomp() is computing -+ * it anyway. -+ */ -+ -+/* -+ * Structure for regexp "program". This is essentially a linear encoding -+ * of a nondeterministic finite-state machine (aka syntax charts or -+ * "railroad normal form" in parsing technology). Each node is an opcode -+ * plus a "next" pointer, possibly plus an operand. "Next" pointers of -+ * all nodes except BRANCH implement concatenation; a "next" pointer with -+ * a BRANCH on both ends of it is connecting two alternatives. (Here we -+ * have one of the subtle syntax dependencies: an individual BRANCH (as -+ * opposed to a collection of them) is never concatenated with anything -+ * because of operator precedence.) The operand of some types of node is -+ * a literal string; for others, it is a node leading into a sub-FSM. In -+ * particular, the operand of a BRANCH node is the first node of the branch. -+ * (NB this is *not* a tree structure: the tail of the branch connects -+ * to the thing following the set of BRANCHes.) The opcodes are: -+ */ -+ -+/* definition number opnd? meaning */ -+#define END 0 /* no End of program. */ -+#define BOL 1 /* no Match "" at beginning of line. */ -+#define EOL 2 /* no Match "" at end of line. */ -+#define ANY 3 /* no Match any one character. */ -+#define ANYOF 4 /* str Match any character in this string. */ -+#define ANYBUT 5 /* str Match any character not in this string. */ -+#define BRANCH 6 /* node Match this alternative, or the next... */ -+#define BACK 7 /* no Match "", "next" ptr points backward. */ -+#define EXACTLY 8 /* str Match this string. */ -+#define NOTHING 9 /* no Match empty string. */ -+#define STAR 10 /* node Match this (simple) thing 0 or more times. */ -+#define PLUS 11 /* node Match this (simple) thing 1 or more times. */ -+#define OPEN 20 /* no Mark this point in input as start of #n. */ -+ /* OPEN+1 is number 1, etc. */ -+#define CLOSE 30 /* no Analogous to OPEN. */ -+ -+/* -+ * Opcode notes: -+ * -+ * BRANCH The set of branches constituting a single choice are hooked -+ * together with their "next" pointers, since precedence prevents -+ * anything being concatenated to any individual branch. The -+ * "next" pointer of the last BRANCH in a choice points to the -+ * thing following the whole choice. This is also where the -+ * final "next" pointer of each individual branch points; each -+ * branch starts with the operand node of a BRANCH node. -+ * -+ * BACK Normal "next" pointers all implicitly point forward; BACK -+ * exists to make loop structures possible. -+ * -+ * STAR,PLUS '?', and complex '*' and '+', are implemented as circular -+ * BRANCH structures using BACK. Simple cases (one character -+ * per match) are implemented with STAR and PLUS for speed -+ * and to minimize recursive plunges. -+ * -+ * OPEN,CLOSE ...are numbered at compile time. -+ */ -+ -+/* -+ * A node is one char of opcode followed by two chars of "next" pointer. -+ * "Next" pointers are stored as two 8-bit pieces, high order first. The -+ * value is a positive offset from the opcode of the node containing it. -+ * An operand, if any, simply follows the node. (Note that much of the -+ * code generation knows about this implicit relationship.) -+ * -+ * Using two bytes for the "next" pointer is vast overkill for most things, -+ * but allows patterns to get big without disasters. -+ */ -+#define OP(p) (*(p)) -+#define NEXT(p) (((*((p)+1)&0377)<<8) + (*((p)+2)&0377)) -+#define OPERAND(p) ((p) + 3) -+ -+/* -+ * See regmagic.h for one further detail of program structure. -+ */ -+ -+ -+/* -+ * Utility definitions. -+ */ -+#ifndef CHARBITS -+#define UCHARAT(p) ((int)*(unsigned char *)(p)) -+#else -+#define UCHARAT(p) ((int)*(p)&CHARBITS) -+#endif -+ -+#define FAIL(m) { regerror(m); return(NULL); } -+#define ISMULT(c) ((c) == '*' || (c) == '+' || (c) == '?') -+#define META "^$.[()|?+*\\" -+ -+/* -+ * Flags to be passed up and down. -+ */ -+#define HASWIDTH 01 /* Known never to match null string. */ -+#define SIMPLE 02 /* Simple enough to be STAR/PLUS operand. */ -+#define SPSTART 04 /* Starts with * or +. */ -+#define WORST 0 /* Worst case. */ -+ -+/* -+ * Global work variables for regcomp(). -+ */ -+struct match_globals { -+char *reginput; /* String-input pointer. */ -+char *regbol; /* Beginning of input, for ^ check. */ -+char **regstartp; /* Pointer to startp array. */ -+char **regendp; /* Ditto for endp. */ -+char *regparse; /* Input-scan pointer. */ -+int regnpar; /* () count. */ -+char regdummy; -+char *regcode; /* Code-emit pointer; ®dummy = don't. */ -+long regsize; /* Code size. */ -+}; -+ -+/* -+ * Forward declarations for regcomp()'s friends. -+ */ -+#ifndef STATIC -+#define STATIC static -+#endif -+STATIC char *reg(struct match_globals *g, int paren,int *flagp); -+STATIC char *regbranch(struct match_globals *g, int *flagp); -+STATIC char *regpiece(struct match_globals *g, int *flagp); -+STATIC char *regatom(struct match_globals *g, int *flagp); -+STATIC char *regnode(struct match_globals *g, char op); -+STATIC char *regnext(struct match_globals *g, char *p); -+STATIC void regc(struct match_globals *g, char b); -+STATIC void reginsert(struct match_globals *g, char op, char *opnd); -+STATIC void regtail(struct match_globals *g, char *p, char *val); -+STATIC void regoptail(struct match_globals *g, char *p, char *val); -+ -+ -+__kernel_size_t my_strcspn(const char *s1,const char *s2) -+{ -+ char *scan1; -+ char *scan2; -+ int count; -+ -+ count = 0; -+ for (scan1 = (char *)s1; *scan1 != '\0'; scan1++) { -+ for (scan2 = (char *)s2; *scan2 != '\0';) /* ++ moved down. */ -+ if (*scan1 == *scan2++) -+ return(count); -+ count++; -+ } -+ return(count); -+} -+ -+/* -+ - regcomp - compile a regular expression into internal code -+ * -+ * We can't allocate space until we know how big the compiled form will be, -+ * but we can't compile it (and thus know how big it is) until we've got a -+ * place to put the code. So we cheat: we compile it twice, once with code -+ * generation turned off and size counting turned on, and once "for real". -+ * This also means that we don't allocate space until we are sure that the -+ * thing really will compile successfully, and we never have to move the -+ * code and thus invalidate pointers into it. (Note that it has to be in -+ * one piece because free() must be able to free it all.) -+ * -+ * Beware that the optimization-preparation code in here knows about some -+ * of the structure of the compiled regexp. -+ */ -+regexp * -+regcomp(char *exp,int *patternsize) -+{ -+ register regexp *r; -+ register char *scan; -+ register char *longest; -+ register int len; -+ int flags; -+ struct match_globals g; -+ -+ /* commented out by ethan -+ extern char *malloc(); -+ */ -+ -+ if (exp == NULL) -+ FAIL("NULL argument"); -+ -+ /* First pass: determine size, legality. */ -+ g.regparse = exp; -+ g.regnpar = 1; -+ g.regsize = 0L; -+ g.regcode = &g.regdummy; -+ regc(&g, MAGIC); -+ if (reg(&g, 0, &flags) == NULL) -+ return(NULL); -+ -+ /* Small enough for pointer-storage convention? */ -+ if (g.regsize >= 32767L) /* Probably could be 65535L. */ -+ FAIL("regexp too big"); -+ -+ /* Allocate space. */ -+ *patternsize=sizeof(regexp) + (unsigned)g.regsize; -+ r = (regexp *)malloc(sizeof(regexp) + (unsigned)g.regsize); -+ if (r == NULL) -+ FAIL("out of space"); -+ -+ /* Second pass: emit code. */ -+ g.regparse = exp; -+ g.regnpar = 1; -+ g.regcode = r->program; -+ regc(&g, MAGIC); -+ if (reg(&g, 0, &flags) == NULL) -+ return(NULL); -+ -+ /* Dig out information for optimizations. */ -+ r->regstart = '\0'; /* Worst-case defaults. */ -+ r->reganch = 0; -+ r->regmust = NULL; -+ r->regmlen = 0; -+ scan = r->program+1; /* First BRANCH. */ -+ if (OP(regnext(&g, scan)) == END) { /* Only one top-level choice. */ -+ scan = OPERAND(scan); -+ -+ /* Starting-point info. */ -+ if (OP(scan) == EXACTLY) -+ r->regstart = *OPERAND(scan); -+ else if (OP(scan) == BOL) -+ r->reganch++; -+ -+ /* -+ * If there's something expensive in the r.e., find the -+ * longest literal string that must appear and make it the -+ * regmust. Resolve ties in favor of later strings, since -+ * the regstart check works with the beginning of the r.e. -+ * and avoiding duplication strengthens checking. Not a -+ * strong reason, but sufficient in the absence of others. -+ */ -+ if (flags&SPSTART) { -+ longest = NULL; -+ len = 0; -+ for (; scan != NULL; scan = regnext(&g, scan)) -+ if (OP(scan) == EXACTLY && strlen(OPERAND(scan)) >= len) { -+ longest = OPERAND(scan); -+ len = strlen(OPERAND(scan)); -+ } -+ r->regmust = longest; -+ r->regmlen = len; -+ } -+ } -+ -+ return(r); -+} -+ -+/* -+ - reg - regular expression, i.e. main body or parenthesized thing -+ * -+ * Caller must absorb opening parenthesis. -+ * -+ * Combining parenthesis handling with the base level of regular expression -+ * is a trifle forced, but the need to tie the tails of the branches to what -+ * follows makes it hard to avoid. -+ */ -+static char * -+reg(struct match_globals *g, int paren, int *flagp /* Parenthesized? */ ) -+{ -+ register char *ret; -+ register char *br; -+ register char *ender; -+ register int parno = 0; /* 0 makes gcc happy */ -+ int flags; -+ -+ *flagp = HASWIDTH; /* Tentatively. */ -+ -+ /* Make an OPEN node, if parenthesized. */ -+ if (paren) { -+ if (g->regnpar >= NSUBEXP) -+ FAIL("too many ()"); -+ parno = g->regnpar; -+ g->regnpar++; -+ ret = regnode(g, OPEN+parno); -+ } else -+ ret = NULL; -+ -+ /* Pick up the branches, linking them together. */ -+ br = regbranch(g, &flags); -+ if (br == NULL) -+ return(NULL); -+ if (ret != NULL) -+ regtail(g, ret, br); /* OPEN -> first. */ -+ else -+ ret = br; -+ if (!(flags&HASWIDTH)) -+ *flagp &= ~HASWIDTH; -+ *flagp |= flags&SPSTART; -+ while (*g->regparse == '|') { -+ g->regparse++; -+ br = regbranch(g, &flags); -+ if (br == NULL) -+ return(NULL); -+ regtail(g, ret, br); /* BRANCH -> BRANCH. */ -+ if (!(flags&HASWIDTH)) -+ *flagp &= ~HASWIDTH; -+ *flagp |= flags&SPSTART; -+ } -+ -+ /* Make a closing node, and hook it on the end. */ -+ ender = regnode(g, (paren) ? CLOSE+parno : END); -+ regtail(g, ret, ender); -+ -+ /* Hook the tails of the branches to the closing node. */ -+ for (br = ret; br != NULL; br = regnext(g, br)) -+ regoptail(g, br, ender); -+ -+ /* Check for proper termination. */ -+ if (paren && *g->regparse++ != ')') { -+ FAIL("unmatched ()"); -+ } else if (!paren && *g->regparse != '\0') { -+ if (*g->regparse == ')') { -+ FAIL("unmatched ()"); -+ } else -+ FAIL("junk on end"); /* "Can't happen". */ -+ /* NOTREACHED */ -+ } -+ -+ return(ret); -+} -+ -+/* -+ - regbranch - one alternative of an | operator -+ * -+ * Implements the concatenation operator. -+ */ -+static char * -+regbranch(struct match_globals *g, int *flagp) -+{ -+ register char *ret; -+ register char *chain; -+ register char *latest; -+ int flags; -+ -+ *flagp = WORST; /* Tentatively. */ -+ -+ ret = regnode(g, BRANCH); -+ chain = NULL; -+ while (*g->regparse != '\0' && *g->regparse != '|' && *g->regparse != ')') { -+ latest = regpiece(g, &flags); -+ if (latest == NULL) -+ return(NULL); -+ *flagp |= flags&HASWIDTH; -+ if (chain == NULL) /* First piece. */ -+ *flagp |= flags&SPSTART; -+ else -+ regtail(g, chain, latest); -+ chain = latest; -+ } -+ if (chain == NULL) /* Loop ran zero times. */ -+ (void) regnode(g, NOTHING); -+ -+ return(ret); -+} -+ -+/* -+ - regpiece - something followed by possible [*+?] -+ * -+ * Note that the branching code sequences used for ? and the general cases -+ * of * and + are somewhat optimized: they use the same NOTHING node as -+ * both the endmarker for their branch list and the body of the last branch. -+ * It might seem that this node could be dispensed with entirely, but the -+ * endmarker role is not redundant. -+ */ -+static char * -+regpiece(struct match_globals *g, int *flagp) -+{ -+ register char *ret; -+ register char op; -+ register char *next; -+ int flags; -+ -+ ret = regatom(g, &flags); -+ if (ret == NULL) -+ return(NULL); -+ -+ op = *g->regparse; -+ if (!ISMULT(op)) { -+ *flagp = flags; -+ return(ret); -+ } -+ -+ if (!(flags&HASWIDTH) && op != '?') -+ FAIL("*+ operand could be empty"); -+ *flagp = (op != '+') ? (WORST|SPSTART) : (WORST|HASWIDTH); -+ -+ if (op == '*' && (flags&SIMPLE)) -+ reginsert(g, STAR, ret); -+ else if (op == '*') { -+ /* Emit x* as (x&|), where & means "self". */ -+ reginsert(g, BRANCH, ret); /* Either x */ -+ regoptail(g, ret, regnode(g, BACK)); /* and loop */ -+ regoptail(g, ret, ret); /* back */ -+ regtail(g, ret, regnode(g, BRANCH)); /* or */ -+ regtail(g, ret, regnode(g, NOTHING)); /* null. */ -+ } else if (op == '+' && (flags&SIMPLE)) -+ reginsert(g, PLUS, ret); -+ else if (op == '+') { -+ /* Emit x+ as x(&|), where & means "self". */ -+ next = regnode(g, BRANCH); /* Either */ -+ regtail(g, ret, next); -+ regtail(g, regnode(g, BACK), ret); /* loop back */ -+ regtail(g, next, regnode(g, BRANCH)); /* or */ -+ regtail(g, ret, regnode(g, NOTHING)); /* null. */ -+ } else if (op == '?') { -+ /* Emit x? as (x|) */ -+ reginsert(g, BRANCH, ret); /* Either x */ -+ regtail(g, ret, regnode(g, BRANCH)); /* or */ -+ next = regnode(g, NOTHING); /* null. */ -+ regtail(g, ret, next); -+ regoptail(g, ret, next); -+ } -+ g->regparse++; -+ if (ISMULT(*g->regparse)) -+ FAIL("nested *?+"); -+ -+ return(ret); -+} -+ -+/* -+ - regatom - the lowest level -+ * -+ * Optimization: gobbles an entire sequence of ordinary characters so that -+ * it can turn them into a single node, which is smaller to store and -+ * faster to run. Backslashed characters are exceptions, each becoming a -+ * separate node; the code is simpler that way and it's not worth fixing. -+ */ -+static char * -+regatom(struct match_globals *g, int *flagp) -+{ -+ register char *ret; -+ int flags; -+ -+ *flagp = WORST; /* Tentatively. */ -+ -+ switch (*g->regparse++) { -+ case '^': -+ ret = regnode(g, BOL); -+ break; -+ case '$': -+ ret = regnode(g, EOL); -+ break; -+ case '.': -+ ret = regnode(g, ANY); -+ *flagp |= HASWIDTH|SIMPLE; -+ break; -+ case '[': { -+ register int class; -+ register int classend; -+ -+ if (*g->regparse == '^') { /* Complement of range. */ -+ ret = regnode(g, ANYBUT); -+ g->regparse++; -+ } else -+ ret = regnode(g, ANYOF); -+ if (*g->regparse == ']' || *g->regparse == '-') -+ regc(g, *g->regparse++); -+ while (*g->regparse != '\0' && *g->regparse != ']') { -+ if (*g->regparse == '-') { -+ g->regparse++; -+ if (*g->regparse == ']' || *g->regparse == '\0') -+ regc(g, '-'); -+ else { -+ class = UCHARAT(g->regparse-2)+1; -+ classend = UCHARAT(g->regparse); -+ if (class > classend+1) -+ FAIL("invalid [] range"); -+ for (; class <= classend; class++) -+ regc(g, class); -+ g->regparse++; -+ } -+ } else -+ regc(g, *g->regparse++); -+ } -+ regc(g, '\0'); -+ if (*g->regparse != ']') -+ FAIL("unmatched []"); -+ g->regparse++; -+ *flagp |= HASWIDTH|SIMPLE; -+ } -+ break; -+ case '(': -+ ret = reg(g, 1, &flags); -+ if (ret == NULL) -+ return(NULL); -+ *flagp |= flags&(HASWIDTH|SPSTART); -+ break; -+ case '\0': -+ case '|': -+ case ')': -+ FAIL("internal urp"); /* Supposed to be caught earlier. */ -+ break; -+ case '?': -+ case '+': -+ case '*': -+ FAIL("?+* follows nothing"); -+ break; -+ case '\\': -+ if (*g->regparse == '\0') -+ FAIL("trailing \\"); -+ ret = regnode(g, EXACTLY); -+ regc(g, *g->regparse++); -+ regc(g, '\0'); -+ *flagp |= HASWIDTH|SIMPLE; -+ break; -+ default: { -+ register int len; -+ register char ender; -+ -+ g->regparse--; -+ len = my_strcspn((const char *)g->regparse, (const char *)META); -+ if (len <= 0) -+ FAIL("internal disaster"); -+ ender = *(g->regparse+len); -+ if (len > 1 && ISMULT(ender)) -+ len--; /* Back off clear of ?+* operand. */ -+ *flagp |= HASWIDTH; -+ if (len == 1) -+ *flagp |= SIMPLE; -+ ret = regnode(g, EXACTLY); -+ while (len > 0) { -+ regc(g, *g->regparse++); -+ len--; -+ } -+ regc(g, '\0'); -+ } -+ break; -+ } -+ -+ return(ret); -+} -+ -+/* -+ - regnode - emit a node -+ */ -+static char * /* Location. */ -+regnode(struct match_globals *g, char op) -+{ -+ register char *ret; -+ register char *ptr; -+ -+ ret = g->regcode; -+ if (ret == &g->regdummy) { -+ g->regsize += 3; -+ return(ret); -+ } -+ -+ ptr = ret; -+ *ptr++ = op; -+ *ptr++ = '\0'; /* Null "next" pointer. */ -+ *ptr++ = '\0'; -+ g->regcode = ptr; -+ -+ return(ret); -+} -+ -+/* -+ - regc - emit (if appropriate) a byte of code -+ */ -+static void -+regc(struct match_globals *g, char b) -+{ -+ if (g->regcode != &g->regdummy) -+ *g->regcode++ = b; -+ else -+ g->regsize++; -+} -+ -+/* -+ - reginsert - insert an operator in front of already-emitted operand -+ * -+ * Means relocating the operand. -+ */ -+static void -+reginsert(struct match_globals *g, char op, char* opnd) -+{ -+ register char *src; -+ register char *dst; -+ register char *place; -+ -+ if (g->regcode == &g->regdummy) { -+ g->regsize += 3; -+ return; -+ } -+ -+ src = g->regcode; -+ g->regcode += 3; -+ dst = g->regcode; -+ while (src > opnd) -+ *--dst = *--src; -+ -+ place = opnd; /* Op node, where operand used to be. */ -+ *place++ = op; -+ *place++ = '\0'; -+ *place++ = '\0'; -+} -+ -+/* -+ - regtail - set the next-pointer at the end of a node chain -+ */ -+static void -+regtail(struct match_globals *g, char *p, char *val) -+{ -+ register char *scan; -+ register char *temp; -+ register int offset; -+ -+ if (p == &g->regdummy) -+ return; -+ -+ /* Find last node. */ -+ scan = p; -+ for (;;) { -+ temp = regnext(g, scan); -+ if (temp == NULL) -+ break; -+ scan = temp; -+ } -+ -+ if (OP(scan) == BACK) -+ offset = scan - val; -+ else -+ offset = val - scan; -+ *(scan+1) = (offset>>8)&0377; -+ *(scan+2) = offset&0377; -+} -+ -+/* -+ - regoptail - regtail on operand of first argument; nop if operandless -+ */ -+static void -+regoptail(struct match_globals *g, char *p, char *val) -+{ -+ /* "Operandless" and "op != BRANCH" are synonymous in practice. */ -+ if (p == NULL || p == &g->regdummy || OP(p) != BRANCH) -+ return; -+ regtail(g, OPERAND(p), val); -+} -+ -+/* -+ * regexec and friends -+ */ -+ -+ -+/* -+ * Forwards. -+ */ -+STATIC int regtry(struct match_globals *g, regexp *prog, char *string); -+STATIC int regmatch(struct match_globals *g, char *prog); -+STATIC int regrepeat(struct match_globals *g, char *p); -+ -+#ifdef DEBUG -+int regnarrate = 0; -+void regdump(); -+STATIC char *regprop(char *op); -+#endif -+ -+/* -+ - regexec - match a regexp against a string -+ */ -+int -+regexec(regexp *prog, char *string) -+{ -+ register char *s; -+ struct match_globals g; -+ -+ /* Be paranoid... */ -+ if (prog == NULL || string == NULL) { -+ printk("<3>Regexp: NULL parameter\n"); -+ return(0); -+ } -+ -+ /* Check validity of program. */ -+ if (UCHARAT(prog->program) != MAGIC) { -+ printk("<3>Regexp: corrupted program\n"); -+ return(0); -+ } -+ -+ /* If there is a "must appear" string, look for it. */ -+ if (prog->regmust != NULL) { -+ s = string; -+ while ((s = strchr(s, prog->regmust[0])) != NULL) { -+ if (strncmp(s, prog->regmust, prog->regmlen) == 0) -+ break; /* Found it. */ -+ s++; -+ } -+ if (s == NULL) /* Not present. */ -+ return(0); -+ } -+ -+ /* Mark beginning of line for ^ . */ -+ g.regbol = string; -+ -+ /* Simplest case: anchored match need be tried only once. */ -+ if (prog->reganch) -+ return(regtry(&g, prog, string)); -+ -+ /* Messy cases: unanchored match. */ -+ s = string; -+ if (prog->regstart != '\0') -+ /* We know what char it must start with. */ -+ while ((s = strchr(s, prog->regstart)) != NULL) { -+ if (regtry(&g, prog, s)) -+ return(1); -+ s++; -+ } -+ else -+ /* We don't -- general case. */ -+ do { -+ if (regtry(&g, prog, s)) -+ return(1); -+ } while (*s++ != '\0'); -+ -+ /* Failure. */ -+ return(0); -+} -+ -+/* -+ - regtry - try match at specific point -+ */ -+static int /* 0 failure, 1 success */ -+regtry(struct match_globals *g, regexp *prog, char *string) -+{ -+ register int i; -+ register char **sp; -+ register char **ep; -+ -+ g->reginput = string; -+ g->regstartp = prog->startp; -+ g->regendp = prog->endp; -+ -+ sp = prog->startp; -+ ep = prog->endp; -+ for (i = NSUBEXP; i > 0; i--) { -+ *sp++ = NULL; -+ *ep++ = NULL; -+ } -+ if (regmatch(g, prog->program + 1)) { -+ prog->startp[0] = string; -+ prog->endp[0] = g->reginput; -+ return(1); -+ } else -+ return(0); -+} -+ -+/* -+ - regmatch - main matching routine -+ * -+ * Conceptually the strategy is simple: check to see whether the current -+ * node matches, call self recursively to see whether the rest matches, -+ * and then act accordingly. In practice we make some effort to avoid -+ * recursion, in particular by going through "ordinary" nodes (that don't -+ * need to know whether the rest of the match failed) by a loop instead of -+ * by recursion. -+ */ -+static int /* 0 failure, 1 success */ -+regmatch(struct match_globals *g, char *prog) -+{ -+ register char *scan = prog; /* Current node. */ -+ char *next; /* Next node. */ -+ -+#ifdef DEBUG -+ if (scan != NULL && regnarrate) -+ fprintf(stderr, "%s(\n", regprop(scan)); -+#endif -+ while (scan != NULL) { -+#ifdef DEBUG -+ if (regnarrate) -+ fprintf(stderr, "%s...\n", regprop(scan)); -+#endif -+ next = regnext(g, scan); -+ -+ switch (OP(scan)) { -+ case BOL: -+ if (g->reginput != g->regbol) -+ return(0); -+ break; -+ case EOL: -+ if (*g->reginput != '\0') -+ return(0); -+ break; -+ case ANY: -+ if (*g->reginput == '\0') -+ return(0); -+ g->reginput++; -+ break; -+ case EXACTLY: { -+ register int len; -+ register char *opnd; -+ -+ opnd = OPERAND(scan); -+ /* Inline the first character, for speed. */ -+ if (*opnd != *g->reginput) -+ return(0); -+ len = strlen(opnd); -+ if (len > 1 && strncmp(opnd, g->reginput, len) != 0) -+ return(0); -+ g->reginput += len; -+ } -+ break; -+ case ANYOF: -+ if (*g->reginput == '\0' || strchr(OPERAND(scan), *g->reginput) == NULL) -+ return(0); -+ g->reginput++; -+ break; -+ case ANYBUT: -+ if (*g->reginput == '\0' || strchr(OPERAND(scan), *g->reginput) != NULL) -+ return(0); -+ g->reginput++; -+ break; -+ case NOTHING: -+ case BACK: -+ break; -+ case OPEN+1: -+ case OPEN+2: -+ case OPEN+3: -+ case OPEN+4: -+ case OPEN+5: -+ case OPEN+6: -+ case OPEN+7: -+ case OPEN+8: -+ case OPEN+9: { -+ register int no; -+ register char *save; -+ -+ no = OP(scan) - OPEN; -+ save = g->reginput; -+ -+ if (regmatch(g, next)) { -+ /* -+ * Don't set startp if some later -+ * invocation of the same parentheses -+ * already has. -+ */ -+ if (g->regstartp[no] == NULL) -+ g->regstartp[no] = save; -+ return(1); -+ } else -+ return(0); -+ } -+ break; -+ case CLOSE+1: -+ case CLOSE+2: -+ case CLOSE+3: -+ case CLOSE+4: -+ case CLOSE+5: -+ case CLOSE+6: -+ case CLOSE+7: -+ case CLOSE+8: -+ case CLOSE+9: -+ { -+ register int no; -+ register char *save; -+ -+ no = OP(scan) - CLOSE; -+ save = g->reginput; -+ -+ if (regmatch(g, next)) { -+ /* -+ * Don't set endp if some later -+ * invocation of the same parentheses -+ * already has. -+ */ -+ if (g->regendp[no] == NULL) -+ g->regendp[no] = save; -+ return(1); -+ } else -+ return(0); -+ } -+ break; -+ case BRANCH: { -+ register char *save; -+ -+ if (OP(next) != BRANCH) /* No choice. */ -+ next = OPERAND(scan); /* Avoid recursion. */ -+ else { -+ do { -+ save = g->reginput; -+ if (regmatch(g, OPERAND(scan))) -+ return(1); -+ g->reginput = save; -+ scan = regnext(g, scan); -+ } while (scan != NULL && OP(scan) == BRANCH); -+ return(0); -+ /* NOTREACHED */ -+ } -+ } -+ break; -+ case STAR: -+ case PLUS: { -+ register char nextch; -+ register int no; -+ register char *save; -+ register int min; -+ -+ /* -+ * Lookahead to avoid useless match attempts -+ * when we know what character comes next. -+ */ -+ nextch = '\0'; -+ if (OP(next) == EXACTLY) -+ nextch = *OPERAND(next); -+ min = (OP(scan) == STAR) ? 0 : 1; -+ save = g->reginput; -+ no = regrepeat(g, OPERAND(scan)); -+ while (no >= min) { -+ /* If it could work, try it. */ -+ if (nextch == '\0' || *g->reginput == nextch) -+ if (regmatch(g, next)) -+ return(1); -+ /* Couldn't or didn't -- back up. */ -+ no--; -+ g->reginput = save + no; -+ } -+ return(0); -+ } -+ break; -+ case END: -+ return(1); /* Success! */ -+ break; -+ default: -+ printk("<3>Regexp: memory corruption\n"); -+ return(0); -+ break; -+ } -+ -+ scan = next; -+ } -+ -+ /* -+ * We get here only if there's trouble -- normally "case END" is -+ * the terminating point. -+ */ -+ printk("<3>Regexp: corrupted pointers\n"); -+ return(0); -+} -+ -+/* -+ - regrepeat - repeatedly match something simple, report how many -+ */ -+static int -+regrepeat(struct match_globals *g, char *p) -+{ -+ register int count = 0; -+ register char *scan; -+ register char *opnd; -+ -+ scan = g->reginput; -+ opnd = OPERAND(p); -+ switch (OP(p)) { -+ case ANY: -+ count = strlen(scan); -+ scan += count; -+ break; -+ case EXACTLY: -+ while (*opnd == *scan) { -+ count++; -+ scan++; -+ } -+ break; -+ case ANYOF: -+ while (*scan != '\0' && strchr(opnd, *scan) != NULL) { -+ count++; -+ scan++; -+ } -+ break; -+ case ANYBUT: -+ while (*scan != '\0' && strchr(opnd, *scan) == NULL) { -+ count++; -+ scan++; -+ } -+ break; -+ default: /* Oh dear. Called inappropriately. */ -+ printk("<3>Regexp: internal foulup\n"); -+ count = 0; /* Best compromise. */ -+ break; -+ } -+ g->reginput = scan; -+ -+ return(count); -+} -+ -+/* -+ - regnext - dig the "next" pointer out of a node -+ */ -+static char* -+regnext(struct match_globals *g, char *p) -+{ -+ register int offset; -+ -+ if (p == &g->regdummy) -+ return(NULL); -+ -+ offset = NEXT(p); -+ if (offset == 0) -+ return(NULL); -+ -+ if (OP(p) == BACK) -+ return(p-offset); -+ else -+ return(p+offset); -+} -+ -+#ifdef DEBUG -+ -+STATIC char *regprop(); -+ -+/* -+ - regdump - dump a regexp onto stdout in vaguely comprehensible form -+ */ -+void -+regdump(regexp *r) -+{ -+ register char *s; -+ register char op = EXACTLY; /* Arbitrary non-END op. */ -+ register char *next; -+ /* extern char *strchr(); */ -+ -+ -+ s = r->program + 1; -+ while (op != END) { /* While that wasn't END last time... */ -+ op = OP(s); -+ printf("%2d%s", s-r->program, regprop(s)); /* Where, what. */ -+ next = regnext(s); -+ if (next == NULL) /* Next ptr. */ -+ printf("(0)"); -+ else -+ printf("(%d)", (s-r->program)+(next-s)); -+ s += 3; -+ if (op == ANYOF || op == ANYBUT || op == EXACTLY) { -+ /* Literal string, where present. */ -+ while (*s != '\0') { -+ putchar(*s); -+ s++; -+ } -+ s++; -+ } -+ putchar('\n'); -+ } -+ -+ /* Header fields of interest. */ -+ if (r->regstart != '\0') -+ printf("start `%c' ", r->regstart); -+ if (r->reganch) -+ printf("anchored "); -+ if (r->regmust != NULL) -+ printf("must have \"%s\"", r->regmust); -+ printf("\n"); -+} -+ -+/* -+ - regprop - printable representation of opcode -+ */ -+static char * -+regprop(char *op) -+{ -+#define BUFLEN 50 -+ register char *p; -+ static char buf[BUFLEN]; -+ -+ strcpy(buf, ":"); -+ -+ switch (OP(op)) { -+ case BOL: -+ p = "BOL"; -+ break; -+ case EOL: -+ p = "EOL"; -+ break; -+ case ANY: -+ p = "ANY"; -+ break; -+ case ANYOF: -+ p = "ANYOF"; -+ break; -+ case ANYBUT: -+ p = "ANYBUT"; -+ break; -+ case BRANCH: -+ p = "BRANCH"; -+ break; -+ case EXACTLY: -+ p = "EXACTLY"; -+ break; -+ case NOTHING: -+ p = "NOTHING"; -+ break; -+ case BACK: -+ p = "BACK"; -+ break; -+ case END: -+ p = "END"; -+ break; -+ case OPEN+1: -+ case OPEN+2: -+ case OPEN+3: -+ case OPEN+4: -+ case OPEN+5: -+ case OPEN+6: -+ case OPEN+7: -+ case OPEN+8: -+ case OPEN+9: -+ snprintf(buf+strlen(buf),BUFLEN-strlen(buf), "OPEN%d", OP(op)-OPEN); -+ p = NULL; -+ break; -+ case CLOSE+1: -+ case CLOSE+2: -+ case CLOSE+3: -+ case CLOSE+4: -+ case CLOSE+5: -+ case CLOSE+6: -+ case CLOSE+7: -+ case CLOSE+8: -+ case CLOSE+9: -+ snprintf(buf+strlen(buf),BUFLEN-strlen(buf), "CLOSE%d", OP(op)-CLOSE); -+ p = NULL; -+ break; -+ case STAR: -+ p = "STAR"; -+ break; -+ case PLUS: -+ p = "PLUS"; -+ break; -+ default: -+ printk("<3>Regexp: corrupted opcode\n"); -+ break; -+ } -+ if (p != NULL) -+ strncat(buf, p, BUFLEN-strlen(buf)); -+ return(buf); -+} -+#endif -+ -+ ---- /dev/null -+++ b/net/netfilter/regexp/regexp.h -@@ -0,0 +1,41 @@ -+/* -+ * Definitions etc. for regexp(3) routines. -+ * -+ * Caveat: this is V8 regexp(3) [actually, a reimplementation thereof], -+ * not the System V one. -+ */ -+ -+#ifndef REGEXP_H -+#define REGEXP_H -+ -+ -+/* -+http://www.opensource.apple.com/darwinsource/10.3/expect-1/expect/expect.h , -+which contains a version of this library, says: -+ -+ * -+ * NSUBEXP must be at least 10, and no greater than 117 or the parser -+ * will not work properly. -+ * -+ -+However, it looks rather like this library is limited to 10. If you think -+otherwise, let us know. -+*/ -+ -+#define NSUBEXP 10 -+typedef struct regexp { -+ char *startp[NSUBEXP]; -+ char *endp[NSUBEXP]; -+ char regstart; /* Internal use only. */ -+ char reganch; /* Internal use only. */ -+ char *regmust; /* Internal use only. */ -+ int regmlen; /* Internal use only. */ -+ char program[1]; /* Unwarranted chumminess with compiler. */ -+} regexp; -+ -+regexp * regcomp(char *exp, int *patternsize); -+int regexec(regexp *prog, char *string); -+void regsub(regexp *prog, char *source, char *dest); -+void regerror(char *s); -+ -+#endif ---- /dev/null -+++ b/net/netfilter/regexp/regmagic.h -@@ -0,0 +1,5 @@ -+/* -+ * The first byte of the regexp internal "program" is actually this magic -+ * number; the start node begins in the second byte. -+ */ -+#define MAGIC 0234 ---- /dev/null -+++ b/net/netfilter/regexp/regsub.c -@@ -0,0 +1,95 @@ -+/* -+ * regsub -+ * @(#)regsub.c 1.3 of 2 April 86 -+ * -+ * Copyright (c) 1986 by University of Toronto. -+ * Written by Henry Spencer. Not derived from licensed software. -+ * -+ * Permission is granted to anyone to use this software for any -+ * purpose on any computer system, and to redistribute it freely, -+ * subject to the following restrictions: -+ * -+ * 1. The author is not responsible for the consequences of use of -+ * this software, no matter how awful, even if they arise -+ * from defects in it. -+ * -+ * 2. The origin of this software must not be misrepresented, either -+ * by explicit claim or by omission. -+ * -+ * 3. Altered versions must be plainly marked as such, and must not -+ * be misrepresented as being the original software. -+ * -+ * -+ * This code was modified by Ethan Sommer to work within the kernel -+ * (it now uses kmalloc etc..) -+ * -+ */ -+#include "regexp.h" -+#include "regmagic.h" -+#include -+ -+ -+#ifndef CHARBITS -+#define UCHARAT(p) ((int)*(unsigned char *)(p)) -+#else -+#define UCHARAT(p) ((int)*(p)&CHARBITS) -+#endif -+ -+#if 0 -+//void regerror(char * s) -+//{ -+// printk("regexp(3): %s", s); -+// /* NOTREACHED */ -+//} -+#endif -+ -+/* -+ - regsub - perform substitutions after a regexp match -+ */ -+void -+regsub(regexp * prog, char * source, char * dest) -+{ -+ register char *src; -+ register char *dst; -+ register char c; -+ register int no; -+ register int len; -+ -+ /* Not necessary and gcc doesn't like it -MLS */ -+ /*extern char *strncpy();*/ -+ -+ if (prog == NULL || source == NULL || dest == NULL) { -+ regerror("NULL parm to regsub"); -+ return; -+ } -+ if (UCHARAT(prog->program) != MAGIC) { -+ regerror("damaged regexp fed to regsub"); -+ return; -+ } -+ -+ src = source; -+ dst = dest; -+ while ((c = *src++) != '\0') { -+ if (c == '&') -+ no = 0; -+ else if (c == '\\' && '0' <= *src && *src <= '9') -+ no = *src++ - '0'; -+ else -+ no = -1; -+ -+ if (no < 0) { /* Ordinary character. */ -+ if (c == '\\' && (*src == '\\' || *src == '&')) -+ c = *src++; -+ *dst++ = c; -+ } else if (prog->startp[no] != NULL && prog->endp[no] != NULL) { -+ len = prog->endp[no] - prog->startp[no]; -+ (void) strncpy(dst, prog->startp[no], len); -+ dst += len; -+ if (len != 0 && *(dst-1) == '\0') { /* strncpy hit NUL. */ -+ regerror("damaged match string"); -+ return; -+ } -+ } -+ } -+ *dst++ = '\0'; -+} ---- a/net/netfilter/nf_conntrack_core.c -+++ b/net/netfilter/nf_conntrack_core.c -@@ -213,6 +213,14 @@ destroy_conntrack(struct nf_conntrack *n - * too. */ - nf_ct_remove_expectations(ct); - -+ #if defined(CONFIG_NETFILTER_XT_MATCH_LAYER7) || defined(CONFIG_NETFILTER_XT_MATCH_LAYER7_MODULE) -+ if(ct->layer7.app_proto) -+ kfree(ct->layer7.app_proto); -+ if(ct->layer7.app_data) -+ kfree(ct->layer7.app_data); -+ #endif -+ -+ - /* We overload first tuple to link into unconfirmed list. */ - if (!nf_ct_is_confirmed(ct)) { - BUG_ON(hlist_nulls_unhashed(&ct->tuplehash[IP_CT_DIR_ORIGINAL].hnnode)); ---- a/net/netfilter/nf_conntrack_standalone.c -+++ b/net/netfilter/nf_conntrack_standalone.c -@@ -239,6 +239,12 @@ static int ct_seq_show(struct seq_file * - if (ct_show_delta_time(s, ct)) - goto release; - -+#if defined(CONFIG_NETFILTER_XT_MATCH_LAYER7) || defined(CONFIG_NETFILTER_XT_MATCH_LAYER7_MODULE) -+ if(ct->layer7.app_proto && -+ seq_printf(s, "l7proto=%s ", ct->layer7.app_proto)) -+ return -ENOSPC; -+#endif -+ - if (seq_printf(s, "use=%u\n", atomic_read(&ct->ct_general.use))) - goto release; - ---- a/include/net/netfilter/nf_conntrack.h -+++ b/include/net/netfilter/nf_conntrack.h -@@ -135,6 +135,22 @@ struct nf_conn { - struct net *ct_net; - #endif - -+#if defined(CONFIG_NETFILTER_XT_MATCH_LAYER7) || \ -+ defined(CONFIG_NETFILTER_XT_MATCH_LAYER7_MODULE) -+ struct { -+ /* -+ * e.g. "http". NULL before decision. "unknown" after decision -+ * if no match. -+ */ -+ char *app_proto; -+ /* -+ * application layer data so far. NULL after match decision. -+ */ -+ char *app_data; -+ unsigned int app_data_len; -+ } layer7; -+#endif -+ - /* Storage reserved for other modules, must be the last member */ - union nf_conntrack_proto proto; - }; ---- /dev/null -+++ b/include/linux/netfilter/xt_layer7.h -@@ -0,0 +1,13 @@ -+#ifndef _XT_LAYER7_H -+#define _XT_LAYER7_H -+ -+#define MAX_PATTERN_LEN 8192 -+#define MAX_PROTOCOL_LEN 256 -+ -+struct xt_layer7_info { -+ char protocol[MAX_PROTOCOL_LEN]; -+ char pattern[MAX_PATTERN_LEN]; -+ u_int8_t invert; -+}; -+ -+#endif /* _XT_LAYER7_H */ diff --git a/target/linux/generic/patches-2.6.39/100-overlayfs.patch b/target/linux/generic/patches-2.6.39/100-overlayfs.patch new file mode 100644 index 00000000000..b5c91990757 --- /dev/null +++ b/target/linux/generic/patches-2.6.39/100-overlayfs.patch @@ -0,0 +1,2840 @@ +--- a/include/linux/fs.h ++++ b/include/linux/fs.h +@@ -1595,6 +1595,7 @@ struct inode_operations { + void (*truncate_range)(struct inode *, loff_t, loff_t); + int (*fiemap)(struct inode *, struct fiemap_extent_info *, u64 start, + u64 len); ++ struct file *(*open)(struct dentry *, int flags, const struct cred *); + } ____cacheline_aligned; + + struct seq_file; +@@ -1989,6 +1990,7 @@ extern long do_sys_open(int dfd, const c + extern struct file *filp_open(const char *, int, int); + extern struct file *file_open_root(struct dentry *, struct vfsmount *, + const char *, int); ++extern struct file *vfs_open(struct path *, int flags, const struct cred *); + extern struct file * dentry_open(struct dentry *, struct vfsmount *, int, + const struct cred *); + extern int filp_close(struct file *, fl_owner_t id); +--- a/fs/open.c ++++ b/fs/open.c +@@ -666,8 +666,7 @@ static inline int __get_file_write_acces + return error; + } + +-static struct file *__dentry_open(struct dentry *dentry, struct vfsmount *mnt, +- struct file *f, ++static struct file *__dentry_open(struct path *path, struct file *f, + int (*open)(struct inode *, struct file *), + const struct cred *cred) + { +@@ -675,15 +674,16 @@ static struct file *__dentry_open(struct + struct inode *inode; + int error; + ++ path_get(path); + f->f_mode = OPEN_FMODE(f->f_flags) | FMODE_LSEEK | + FMODE_PREAD | FMODE_PWRITE; + + if (unlikely(f->f_flags & O_PATH)) + f->f_mode = FMODE_PATH; + +- inode = dentry->d_inode; ++ inode = path->dentry->d_inode; + if (f->f_mode & FMODE_WRITE) { +- error = __get_file_write_access(inode, mnt); ++ error = __get_file_write_access(inode, path->mnt); + if (error) + goto cleanup_file; + if (!special_file(inode->i_mode)) +@@ -691,8 +691,7 @@ static struct file *__dentry_open(struct + } + + f->f_mapping = inode->i_mapping; +- f->f_path.dentry = dentry; +- f->f_path.mnt = mnt; ++ f->f_path = *path; + f->f_pos = 0; + file_sb_list_add(f, inode->i_sb); + +@@ -745,7 +744,7 @@ cleanup_all: + * here, so just reset the state. + */ + file_reset_write(f); +- mnt_drop_write(mnt); ++ mnt_drop_write(path->mnt); + } + } + file_sb_list_del(f); +@@ -753,8 +752,7 @@ cleanup_all: + f->f_path.mnt = NULL; + cleanup_file: + put_filp(f); +- dput(dentry); +- mntput(mnt); ++ path_put(path); + return ERR_PTR(error); + } + +@@ -780,14 +778,14 @@ cleanup_file: + struct file *lookup_instantiate_filp(struct nameidata *nd, struct dentry *dentry, + int (*open)(struct inode *, struct file *)) + { ++ struct path path = { .dentry = dentry, .mnt = nd->path.mnt }; + const struct cred *cred = current_cred(); + + if (IS_ERR(nd->intent.open.file)) + goto out; + if (IS_ERR(dentry)) + goto out_err; +- nd->intent.open.file = __dentry_open(dget(dentry), mntget(nd->path.mnt), +- nd->intent.open.file, ++ nd->intent.open.file = __dentry_open(&path, nd->intent.open.file, + open, cred); + out: + return nd->intent.open.file; +@@ -816,10 +814,17 @@ struct file *nameidata_to_filp(struct na + + /* Has the filesystem initialised the file for us? */ + if (filp->f_path.dentry == NULL) { +- path_get(&nd->path); +- filp = __dentry_open(nd->path.dentry, nd->path.mnt, filp, +- NULL, cred); ++ struct inode *inode = nd->path.dentry->d_inode; ++ ++ if (inode->i_op->open) { ++ int flags = filp->f_flags; ++ put_filp(filp); ++ filp = inode->i_op->open(nd->path.dentry, flags, cred); ++ } else { ++ filp = __dentry_open(&nd->path, filp, NULL, cred); ++ } + } ++ + return filp; + } + +@@ -830,26 +835,45 @@ struct file *nameidata_to_filp(struct na + struct file *dentry_open(struct dentry *dentry, struct vfsmount *mnt, int flags, + const struct cred *cred) + { +- int error; +- struct file *f; +- +- validate_creds(cred); ++ struct path path = { .dentry = dentry, .mnt = mnt }; ++ struct file *ret; + + /* We must always pass in a valid mount pointer. */ + BUG_ON(!mnt); + +- error = -ENFILE; ++ ret = vfs_open(&path, flags, cred); ++ path_put(&path); ++ ++ return ret; ++} ++EXPORT_SYMBOL(dentry_open); ++ ++/** ++ * vfs_open - open the file at the given path ++ * @path: path to open ++ * @flags: open flags ++ * @cred: credentials to use ++ * ++ * Open the file. If successful, the returned file will have acquired ++ * an additional reference for path. ++ */ ++struct file *vfs_open(struct path *path, int flags, const struct cred *cred) ++{ ++ struct file *f; ++ struct inode *inode = path->dentry->d_inode; ++ ++ validate_creds(cred); ++ ++ if (inode->i_op->open) ++ return inode->i_op->open(path->dentry, flags, cred); + f = get_empty_filp(); +- if (f == NULL) { +- dput(dentry); +- mntput(mnt); +- return ERR_PTR(error); +- } ++ if (f == NULL) ++ return ERR_PTR(-ENFILE); + + f->f_flags = flags; +- return __dentry_open(dentry, mnt, f, NULL, cred); ++ return __dentry_open(path, f, NULL, cred); + } +-EXPORT_SYMBOL(dentry_open); ++EXPORT_SYMBOL(vfs_open); + + static void __put_unused_fd(struct files_struct *files, unsigned int fd) + { +--- a/fs/splice.c ++++ b/fs/splice.c +@@ -1296,6 +1296,7 @@ long do_splice_direct(struct file *in, l + + return ret; + } ++EXPORT_SYMBOL(do_splice_direct); + + static int splice_pipe_to_pipe(struct pipe_inode_info *ipipe, + struct pipe_inode_info *opipe, +--- a/fs/namespace.c ++++ b/fs/namespace.c +@@ -1510,6 +1510,23 @@ void drop_collected_mounts(struct vfsmou + release_mounts(&umount_list); + } + ++struct vfsmount *clone_private_mount(struct path *path) ++{ ++ struct vfsmount *mnt; ++ ++ if (IS_MNT_UNBINDABLE(path->mnt)) ++ return ERR_PTR(-EINVAL); ++ ++ down_read(&namespace_sem); ++ mnt = clone_mnt(path->mnt, path->dentry, CL_PRIVATE); ++ up_read(&namespace_sem); ++ if (!mnt) ++ return ERR_PTR(-ENOMEM); ++ ++ return mnt; ++} ++EXPORT_SYMBOL_GPL(clone_private_mount); ++ + int iterate_mounts(int (*f)(struct vfsmount *, void *), void *arg, + struct vfsmount *root) + { +--- a/include/linux/mount.h ++++ b/include/linux/mount.h +@@ -100,6 +100,9 @@ extern void mnt_pin(struct vfsmount *mnt + extern void mnt_unpin(struct vfsmount *mnt); + extern int __mnt_is_readonly(struct vfsmount *mnt); + ++struct path; ++extern struct vfsmount *clone_private_mount(struct path *path); ++ + extern struct vfsmount *do_kern_mount(const char *fstype, int flags, + const char *name, void *data); + +--- /dev/null ++++ b/fs/overlayfs/overlayfs.c +@@ -0,0 +1,2414 @@ ++#include ++#include ++#include ++#include ++#include ++#include ++#include ++#include ++#include ++#include ++#include ++#include ++#include ++#include ++#include ++ ++MODULE_AUTHOR("Miklos Szeredi "); ++MODULE_DESCRIPTION("Overlay filesystem"); ++MODULE_LICENSE("GPL"); ++ ++#define OVL_COPY_UP_CHUNK_SIZE (1 << 20) ++ ++struct ovl_fs { ++ struct vfsmount *upper_mnt; ++ struct vfsmount *lower_mnt; ++}; ++ ++struct ovl_entry { ++ struct dentry *__upperdentry; ++ struct dentry *lowerdentry; ++ union { ++ struct { ++ u64 version; ++ bool opaque; ++ }; ++ struct rcu_head rcu; ++ }; ++}; ++ ++static const char *ovl_whiteout_xattr = "trusted.overlay.whiteout"; ++static const char *ovl_opaque_xattr = "trusted.overlay.opaque"; ++static const char *ovl_whiteout_symlink = "(overlay-whiteout)"; ++ ++enum ovl_path_type { ++ OVL_PATH_UPPER, ++ OVL_PATH_MERGE, ++ OVL_PATH_LOWER, ++}; ++ ++static enum ovl_path_type ovl_path_type(struct dentry *dentry) ++{ ++ struct ovl_entry *oe = dentry->d_fsdata; ++ ++ if (oe->__upperdentry) { ++ if (oe->lowerdentry && S_ISDIR(dentry->d_inode->i_mode)) ++ return OVL_PATH_MERGE; ++ else ++ return OVL_PATH_UPPER; ++ } else { ++ return OVL_PATH_LOWER; ++ } ++} ++ ++static struct dentry *ovl_upperdentry_dereference(struct ovl_entry *oe) ++{ ++ struct dentry *upperdentry = ACCESS_ONCE(oe->__upperdentry); ++ smp_read_barrier_depends(); ++ return upperdentry; ++} ++ ++static void ovl_path_upper(struct dentry *dentry, struct path *path) ++{ ++ struct ovl_fs *ofs = dentry->d_sb->s_fs_info; ++ struct ovl_entry *oe = dentry->d_fsdata; ++ ++ path->mnt = ofs->upper_mnt; ++ path->dentry = ovl_upperdentry_dereference(oe); ++} ++ ++static void ovl_path_lower(struct dentry *dentry, struct path *path) ++{ ++ struct ovl_fs *ofs = dentry->d_sb->s_fs_info; ++ struct ovl_entry *oe = dentry->d_fsdata; ++ ++ path->mnt = ofs->lower_mnt; ++ path->dentry = oe->lowerdentry; ++} ++ ++static enum ovl_path_type ovl_path_real(struct dentry *dentry, ++ struct path *path) ++{ ++ ++ enum ovl_path_type type = ovl_path_type(dentry); ++ ++ if (type == OVL_PATH_LOWER) ++ ovl_path_lower(dentry, path); ++ else ++ ovl_path_upper(dentry, path); ++ ++ return type; ++} ++ ++static struct dentry *ovl_dentry_upper(struct dentry *dentry) ++{ ++ struct ovl_entry *oe = dentry->d_fsdata; ++ ++ return ovl_upperdentry_dereference(oe); ++} ++ ++static struct dentry *ovl_dentry_lower(struct dentry *dentry) ++{ ++ struct ovl_entry *oe = dentry->d_fsdata; ++ ++ return oe->lowerdentry; ++} ++ ++static struct dentry *ovl_dentry_real(struct dentry *dentry) ++{ ++ struct ovl_entry *oe = dentry->d_fsdata; ++ struct dentry *realdentry; ++ ++ realdentry = ovl_upperdentry_dereference(oe); ++ if (!realdentry) ++ realdentry = oe->lowerdentry; ++ ++ return realdentry; ++} ++ ++static bool ovl_dentry_is_opaque(struct dentry *dentry) ++{ ++ struct ovl_entry *oe = dentry->d_fsdata; ++ return oe->opaque; ++} ++ ++static void ovl_dentry_set_opaque(struct dentry *dentry, bool opaque) ++{ ++ struct ovl_entry *oe = dentry->d_fsdata; ++ oe->opaque = opaque; ++} ++ ++static void ovl_dentry_update(struct dentry *dentry, struct dentry *upperdentry) ++{ ++ struct ovl_entry *oe = dentry->d_fsdata; ++ ++ WARN_ON(!mutex_is_locked(&upperdentry->d_parent->d_inode->i_mutex)); ++ WARN_ON(oe->__upperdentry); ++ smp_wmb(); ++ oe->__upperdentry = upperdentry; ++} ++ ++static void ovl_dentry_version_inc(struct dentry *dentry) ++{ ++ struct ovl_entry *oe = dentry->d_fsdata; ++ ++ WARN_ON(!mutex_is_locked(&dentry->d_inode->i_mutex)); ++ oe->version++; ++} ++ ++static u64 ovl_dentry_version_get(struct dentry *dentry) ++{ ++ struct ovl_entry *oe = dentry->d_fsdata; ++ ++ WARN_ON(!mutex_is_locked(&dentry->d_inode->i_mutex)); ++ return oe->version; ++} ++ ++static bool ovl_is_whiteout(struct dentry *dentry) ++{ ++ int res; ++ char val; ++ ++ if (!dentry) ++ return false; ++ if (!dentry->d_inode) ++ return false; ++ if (!S_ISLNK(dentry->d_inode->i_mode)) ++ return false; ++ ++ res = vfs_getxattr(dentry, ovl_whiteout_xattr, &val, 1); ++ if (res == 1 && val == 'y') ++ return true; ++ ++ return false; ++} ++ ++static bool ovl_is_opaquedir(struct dentry *dentry) ++{ ++ int res; ++ char val; ++ ++ if (!S_ISDIR(dentry->d_inode->i_mode)) ++ return false; ++ ++ res = vfs_getxattr(dentry, ovl_opaque_xattr, &val, 1); ++ if (res == 1 && val == 'y') ++ return true; ++ ++ return false; ++} ++ ++struct ovl_cache_entry { ++ const char *name; ++ unsigned int len; ++ unsigned int type; ++ u64 ino; ++ bool is_whiteout; ++ struct list_head l_node; ++ struct rb_node node; ++}; ++ ++struct ovl_readdir_data { ++ struct rb_root *root; ++ struct list_head *list; ++ struct list_head *middle; ++ struct dentry *dir; ++ int count; ++ int err; ++}; ++ ++struct ovl_dir_file { ++ bool is_real; ++ bool is_cached; ++ struct list_head cursor; ++ u64 cache_version; ++ struct list_head cache; ++ struct file *realfile; ++}; ++ ++static struct ovl_cache_entry *ovl_cache_entry_from_node(struct rb_node *n) ++{ ++ return container_of(n, struct ovl_cache_entry, node); ++} ++ ++static struct ovl_cache_entry *ovl_cache_entry_find(struct rb_root *root, ++ const char *name, int len) ++{ ++ struct rb_node *node = root->rb_node; ++ int cmp; ++ ++ while (node) { ++ struct ovl_cache_entry *p = ovl_cache_entry_from_node(node); ++ ++ cmp = strncmp(name, p->name, len); ++ if (cmp > 0) ++ node = p->node.rb_right; ++ else if (cmp < 0 || len < p->len) ++ node = p->node.rb_left; ++ else ++ return p; ++ } ++ ++ return NULL; ++} ++ ++static struct ovl_cache_entry *ovl_cache_entry_new(const char *name, int len, ++ u64 ino, unsigned int d_type) ++{ ++ struct ovl_cache_entry *p; ++ ++ p = kmalloc(sizeof(*p) + len + 1, GFP_KERNEL); ++ if (p) { ++ char *name_copy = (char *) (p + 1); ++ memcpy(name_copy, name, len); ++ name_copy[len] = '\0'; ++ p->name = name_copy; ++ p->len = len; ++ p->type = d_type; ++ p->ino = ino; ++ p->is_whiteout = false; ++ } ++ ++ return p; ++} ++ ++static int ovl_cache_entry_add_rb(struct ovl_readdir_data *rdd, ++ const char *name, int len, u64 ino, ++ unsigned int d_type) ++{ ++ struct rb_node **newp = &rdd->root->rb_node; ++ struct rb_node *parent = NULL; ++ struct ovl_cache_entry *p; ++ ++ while (*newp) { ++ int cmp; ++ struct ovl_cache_entry *tmp; ++ ++ parent = *newp; ++ tmp = ovl_cache_entry_from_node(*newp); ++ cmp = strncmp(name, tmp->name, len); ++ if (cmp > 0) ++ newp = &tmp->node.rb_right; ++ else if (cmp < 0 || len < tmp->len) ++ newp = &tmp->node.rb_left; ++ else ++ return 0; ++ } ++ ++ p = ovl_cache_entry_new(name, len, ino, d_type); ++ if (p == NULL) ++ return -ENOMEM; ++ ++ list_add_tail(&p->l_node, rdd->list); ++ rb_link_node(&p->node, parent, newp); ++ rb_insert_color(&p->node, rdd->root); ++ ++ return 0; ++} ++ ++static int ovl_fill_lower(void *buf, const char *name, int namelen, ++ loff_t offset, u64 ino, unsigned int d_type) ++{ ++ struct ovl_readdir_data *rdd = buf; ++ struct ovl_cache_entry *p; ++ ++ rdd->count++; ++ p = ovl_cache_entry_find(rdd->root, name, namelen); ++ if (p) { ++ list_move_tail(&p->l_node, rdd->middle); ++ } else { ++ p = ovl_cache_entry_new(name, namelen, ino, d_type); ++ if (p == NULL) ++ rdd->err = -ENOMEM; ++ else ++ list_add_tail(&p->l_node, rdd->middle); ++ } ++ ++ return rdd->err; ++} ++ ++static void ovl_cache_free(struct list_head *list) ++{ ++ struct ovl_cache_entry *p; ++ struct ovl_cache_entry *n; ++ ++ list_for_each_entry_safe(p, n, list, l_node) ++ kfree(p); ++ ++ INIT_LIST_HEAD(list); ++} ++ ++static int ovl_fill_upper(void *buf, const char *name, int namelen, ++ loff_t offset, u64 ino, unsigned int d_type) ++{ ++ struct ovl_readdir_data *rdd = buf; ++ ++ rdd->count++; ++ return ovl_cache_entry_add_rb(rdd, name, namelen, ino, d_type); ++} ++ ++static int ovl_dir_read(struct path *realpath, struct ovl_readdir_data *rdd, ++ filldir_t filler) ++{ ++ struct file *realfile; ++ int err; ++ ++ realfile = vfs_open(realpath, O_RDONLY | O_DIRECTORY, current_cred()); ++ if (IS_ERR(realfile)) ++ return PTR_ERR(realfile); ++ ++ do { ++ rdd->count = 0; ++ rdd->err = 0; ++ err = vfs_readdir(realfile, filler, rdd); ++ if (err >= 0) ++ err = rdd->err; ++ } while (!err && rdd->count); ++ fput(realfile); ++ ++ return 0; ++} ++ ++static void ovl_dir_reset(struct file *file) ++{ ++ struct ovl_dir_file *od = file->private_data; ++ enum ovl_path_type type = ovl_path_type(file->f_path.dentry); ++ ++ if (ovl_dentry_version_get(file->f_path.dentry) != od->cache_version) { ++ list_del_init(&od->cursor); ++ ovl_cache_free(&od->cache); ++ od->is_cached = false; ++ } ++ WARN_ON(!od->is_real && type != OVL_PATH_MERGE); ++ if (od->is_real && type == OVL_PATH_MERGE) { ++ fput(od->realfile); ++ od->realfile = NULL; ++ od->is_real = false; ++ } ++} ++ ++static int ovl_dir_mark_whiteouts(struct ovl_readdir_data *rdd) ++{ ++ struct ovl_cache_entry *p; ++ struct dentry *dentry; ++ const struct cred *old_cred; ++ struct cred *override_cred; ++ ++ override_cred = prepare_creds(); ++ if (!override_cred) { ++ ovl_cache_free(rdd->list); ++ return -ENOMEM; ++ } ++ ++ /* ++ * CAP_SYS_ADMIN for getxattr ++ * CAP_DAC_OVERRIDE for lookup ++ */ ++ cap_raise(override_cred->cap_effective, CAP_SYS_ADMIN); ++ cap_raise(override_cred->cap_effective, CAP_DAC_OVERRIDE); ++ old_cred = override_creds(override_cred); ++ ++ mutex_lock(&rdd->dir->d_inode->i_mutex); ++ list_for_each_entry(p, rdd->list, l_node) { ++ if (p->type != DT_LNK) ++ continue; ++ ++ dentry = lookup_one_len(p->name, rdd->dir, p->len); ++ if (IS_ERR(dentry)) ++ continue; ++ ++ p->is_whiteout = ovl_is_whiteout(dentry); ++ dput(dentry); ++ } ++ mutex_unlock(&rdd->dir->d_inode->i_mutex); ++ ++ revert_creds(old_cred); ++ put_cred(override_cred); ++ ++ return 0; ++} ++ ++static int ovl_dir_read_merged(struct path *upperpath, struct path *lowerpath, ++ struct ovl_readdir_data *rdd) ++{ ++ int err; ++ struct rb_root root = RB_ROOT; ++ struct list_head middle; ++ ++ rdd->root = &root; ++ if (upperpath->dentry) { ++ rdd->dir = upperpath->dentry; ++ err = ovl_dir_read(upperpath, rdd, ovl_fill_upper); ++ if (err) ++ goto out; ++ ++ err = ovl_dir_mark_whiteouts(rdd); ++ if (err) ++ goto out; ++ } ++ /* ++ * Insert lowerpath entries before upperpath ones, this allows ++ * offsets to be reasonably constant ++ */ ++ list_add(&middle, rdd->list); ++ rdd->middle = &middle; ++ err = ovl_dir_read(lowerpath, rdd, ovl_fill_lower); ++ list_del(&middle); ++out: ++ rdd->root = NULL; ++ ++ return err; ++} ++ ++static void ovl_seek_cursor(struct ovl_dir_file *od, loff_t pos) ++{ ++ struct list_head *l; ++ loff_t off; ++ ++ l = od->cache.next; ++ for (off = 0; off < pos; off++) { ++ if (l == &od->cache) ++ break; ++ l = l->next; ++ } ++ list_move_tail(&od->cursor, l); ++} ++ ++static int ovl_readdir(struct file *file, void *buf, filldir_t filler) ++{ ++ struct ovl_dir_file *od = file->private_data; ++ int res; ++ ++ if (!file->f_pos) ++ ovl_dir_reset(file); ++ ++ if (od->is_real) { ++ res = vfs_readdir(od->realfile, filler, buf); ++ file->f_pos = od->realfile->f_pos; ++ ++ return res; ++ } ++ ++ if (!od->is_cached) { ++ struct path lowerpath; ++ struct path upperpath; ++ struct ovl_readdir_data rdd = { .list = &od->cache }; ++ ++ ovl_path_lower(file->f_path.dentry, &lowerpath); ++ ovl_path_upper(file->f_path.dentry, &upperpath); ++ ++ res = ovl_dir_read_merged(&upperpath, &lowerpath, &rdd); ++ if (res) { ++ ovl_cache_free(rdd.list); ++ return res; ++ } ++ ++ od->cache_version = ovl_dentry_version_get(file->f_path.dentry); ++ od->is_cached = true; ++ ++ ovl_seek_cursor(od, file->f_pos); ++ } ++ ++ while (od->cursor.next != &od->cache) { ++ int over; ++ loff_t off; ++ struct ovl_cache_entry *p; ++ ++ p = list_entry(od->cursor.next, struct ovl_cache_entry, l_node); ++ off = file->f_pos; ++ file->f_pos++; ++ list_move(&od->cursor, &p->l_node); ++ ++ if (p->is_whiteout) ++ continue; ++ ++ over = filler(buf, p->name, p->len, off, p->ino, p->type); ++ if (over) ++ break; ++ } ++ ++ return 0; ++} ++ ++static loff_t ovl_dir_llseek(struct file *file, loff_t offset, int origin) ++{ ++ loff_t res; ++ struct ovl_dir_file *od = file->private_data; ++ ++ mutex_lock(&file->f_dentry->d_inode->i_mutex); ++ if (!file->f_pos) ++ ovl_dir_reset(file); ++ ++ if (od->is_real) { ++ res = vfs_llseek(od->realfile, offset, origin); ++ file->f_pos = od->realfile->f_pos; ++ } else { ++ res = -EINVAL; ++ ++ switch (origin) { ++ case SEEK_CUR: ++ offset += file->f_pos; ++ break; ++ case SEEK_SET: ++ break; ++ default: ++ goto out_unlock; ++ } ++ if (offset < 0) ++ goto out_unlock; ++ ++ if (offset != file->f_pos) { ++ file->f_pos = offset; ++ if (od->is_cached) ++ ovl_seek_cursor(od, offset); ++ } ++ res = offset; ++ } ++out_unlock: ++ mutex_unlock(&file->f_dentry->d_inode->i_mutex); ++ ++ return res; ++} ++ ++static int ovl_dir_fsync(struct file *file, int datasync) ++{ ++ struct ovl_dir_file *od = file->private_data; ++ ++ /* May need to reopen directory if it got copied up */ ++ if (!od->realfile) { ++ struct path upperpath; ++ ++ ovl_path_upper(file->f_path.dentry, &upperpath); ++ od->realfile = vfs_open(&upperpath, O_RDONLY, current_cred()); ++ if (IS_ERR(od->realfile)) ++ return PTR_ERR(od->realfile); ++ } ++ ++ return vfs_fsync(od->realfile, datasync); ++} ++ ++static int ovl_dir_release(struct inode *inode, struct file *file) ++{ ++ struct ovl_dir_file *od = file->private_data; ++ ++ list_del(&od->cursor); ++ ovl_cache_free(&od->cache); ++ if (od->realfile) ++ fput(od->realfile); ++ kfree(od); ++ ++ return 0; ++} ++ ++static int ovl_dir_open(struct inode *inode, struct file *file) ++{ ++ struct path realpath; ++ struct file *realfile; ++ struct ovl_dir_file *od; ++ enum ovl_path_type type; ++ ++ od = kzalloc(sizeof(struct ovl_dir_file), GFP_KERNEL); ++ if (!od) ++ return -ENOMEM; ++ ++ type = ovl_path_real(file->f_path.dentry, &realpath); ++ realfile = vfs_open(&realpath, file->f_flags, current_cred()); ++ if (IS_ERR(realfile)) { ++ kfree(od); ++ return PTR_ERR(realfile); ++ } ++ INIT_LIST_HEAD(&od->cache); ++ INIT_LIST_HEAD(&od->cursor); ++ od->is_cached = false; ++ od->realfile = realfile; ++ od->is_real = (type != OVL_PATH_MERGE); ++ file->private_data = od; ++ ++ return 0; ++} ++ ++static const struct file_operations ovl_dir_operations = { ++ .read = generic_read_dir, ++ .open = ovl_dir_open, ++ .readdir = ovl_readdir, ++ .llseek = ovl_dir_llseek, ++ .fsync = ovl_dir_fsync, ++ .release = ovl_dir_release, ++}; ++ ++static const struct inode_operations ovl_dir_inode_operations; ++ ++static void ovl_entry_free(struct rcu_head *head) ++{ ++ struct ovl_entry *oe = container_of(head, struct ovl_entry, rcu); ++ kfree(oe); ++} ++ ++static void ovl_dentry_release(struct dentry *dentry) ++{ ++ struct ovl_entry *oe = dentry->d_fsdata; ++ ++ if (oe) { ++ dput(oe->__upperdentry); ++ dput(oe->lowerdentry); ++ call_rcu(&oe->rcu, ovl_entry_free); ++ } ++} ++ ++static const struct dentry_operations ovl_dentry_operations = { ++ .d_release = ovl_dentry_release, ++}; ++ ++static struct dentry *ovl_lookup_real(struct dentry *dir, struct qstr *name) ++{ ++ struct dentry *dentry; ++ ++ mutex_lock(&dir->d_inode->i_mutex); ++ dentry = lookup_one_len(name->name, dir, name->len); ++ mutex_unlock(&dir->d_inode->i_mutex); ++ ++ if (IS_ERR(dentry)) { ++ if (PTR_ERR(dentry) == -ENOENT) ++ dentry = NULL; ++ } else if (!dentry->d_inode) { ++ dput(dentry); ++ dentry = NULL; ++ } ++ return dentry; ++} ++ ++static struct ovl_entry *ovl_alloc_entry(void) ++{ ++ return kzalloc(sizeof(struct ovl_entry), GFP_KERNEL); ++} ++ ++static struct inode *ovl_new_inode(struct super_block *sb, umode_t mode, ++ struct ovl_entry *oe); ++ ++static int ovl_whiteout(struct dentry *upperdir, struct dentry *dentry) ++{ ++ int err; ++ struct dentry *newdentry; ++ const struct cred *old_cred; ++ struct cred *override_cred; ++ ++ /* FIXME: recheck lower dentry to see if whiteout is really needed */ ++ ++ err = -ENOMEM; ++ override_cred = prepare_creds(); ++ if (!override_cred) ++ goto out; ++ ++ /* ++ * CAP_SYS_ADMIN for setxattr ++ * CAP_DAC_OVERRIDE for symlink creation ++ */ ++ cap_raise(override_cred->cap_effective, CAP_SYS_ADMIN); ++ cap_raise(override_cred->cap_effective, CAP_DAC_OVERRIDE); ++ override_cred->fsuid = 0; ++ override_cred->fsgid = 0; ++ old_cred = override_creds(override_cred); ++ ++ newdentry = lookup_one_len(dentry->d_name.name, upperdir, ++ dentry->d_name.len); ++ err = PTR_ERR(newdentry); ++ if (IS_ERR(newdentry)) ++ goto out_put_cred; ++ ++ /* Just been removed within the same locked region */ ++ WARN_ON(newdentry->d_inode); ++ ++ err = vfs_symlink(upperdir->d_inode, newdentry, ovl_whiteout_symlink); ++ if (err) ++ goto out_dput; ++ ++ ovl_dentry_version_inc(dentry->d_parent); ++ ++ err = vfs_setxattr(newdentry, ovl_whiteout_xattr, "y", 1, 0); ++ if (err) ++ vfs_unlink(upperdir->d_inode, newdentry); ++ ++out_dput: ++ dput(newdentry); ++out_put_cred: ++ revert_creds(old_cred); ++ put_cred(override_cred); ++out: ++ if (err) { ++ /* ++ * There's no way to recover from failure to whiteout. ++ * What should we do? Log a big fat error and... ? ++ */ ++ printk(KERN_ERR "overlayfs: ERROR - failed to whiteout '%s'\n", ++ dentry->d_name.name); ++ } ++ ++ return err; ++} ++ ++static struct dentry *ovl_lookup(struct inode *dir, struct dentry *dentry, ++ struct nameidata *nd) ++{ ++ struct ovl_entry *oe; ++ struct dentry *upperdir; ++ struct dentry *lowerdir; ++ struct dentry *upperdentry = NULL; ++ struct dentry *lowerdentry = NULL; ++ struct inode *inode = NULL; ++ int err; ++ ++ err = -ENOMEM; ++ oe = ovl_alloc_entry(); ++ if (!oe) ++ goto out; ++ ++ upperdir = ovl_dentry_upper(dentry->d_parent); ++ lowerdir = ovl_dentry_lower(dentry->d_parent); ++ ++ if (upperdir) { ++ upperdentry = ovl_lookup_real(upperdir, &dentry->d_name); ++ err = PTR_ERR(upperdentry); ++ if (IS_ERR(upperdentry)) ++ goto out_put_dir; ++ ++ if (lowerdir && upperdentry && ++ (S_ISLNK(upperdentry->d_inode->i_mode) || ++ S_ISDIR(upperdentry->d_inode->i_mode))) { ++ const struct cred *old_cred; ++ struct cred *override_cred; ++ ++ err = -ENOMEM; ++ override_cred = prepare_creds(); ++ if (!override_cred) ++ goto out_dput_upper; ++ ++ /* CAP_SYS_ADMIN needed for getxattr */ ++ cap_raise(override_cred->cap_effective, CAP_SYS_ADMIN); ++ old_cred = override_creds(override_cred); ++ ++ if (ovl_is_opaquedir(upperdentry)) { ++ oe->opaque = true; ++ } else if (ovl_is_whiteout(upperdentry)) { ++ dput(upperdentry); ++ upperdentry = NULL; ++ oe->opaque = true; ++ } ++ revert_creds(old_cred); ++ put_cred(override_cred); ++ } ++ } ++ if (lowerdir && !oe->opaque) { ++ lowerdentry = ovl_lookup_real(lowerdir, &dentry->d_name); ++ err = PTR_ERR(lowerdentry); ++ if (IS_ERR(lowerdentry)) ++ goto out_dput_upper; ++ } ++ ++ if (lowerdentry && upperdentry && ++ (!S_ISDIR(upperdentry->d_inode->i_mode) || ++ !S_ISDIR(lowerdentry->d_inode->i_mode))) { ++ dput(lowerdentry); ++ lowerdentry = NULL; ++ oe->opaque = true; ++ } ++ ++ if (lowerdentry || upperdentry) { ++ struct dentry *realdentry; ++ ++ realdentry = upperdentry ? upperdentry : lowerdentry; ++ err = -ENOMEM; ++ inode = ovl_new_inode(dir->i_sb, realdentry->d_inode->i_mode, oe); ++ if (!inode) ++ goto out_dput; ++ } ++ ++ if (upperdentry) ++ oe->__upperdentry = upperdentry; ++ ++ if (lowerdentry) ++ oe->lowerdentry = lowerdentry; ++ ++ dentry->d_fsdata = oe; ++ dentry->d_op = &ovl_dentry_operations; ++ d_add(dentry, inode); ++ ++ return NULL; ++ ++out_dput: ++ dput(lowerdentry); ++out_dput_upper: ++ dput(upperdentry); ++out_put_dir: ++ kfree(oe); ++out: ++ return ERR_PTR(err); ++} ++ ++static int ovl_copy_up_xattr(struct dentry *old, struct dentry *new) ++{ ++ ssize_t list_size, size; ++ char *buf, *name, *value; ++ int error; ++ ++ if (!old->d_inode->i_op->getxattr || ++ !new->d_inode->i_op->getxattr) ++ return 0; ++ ++ list_size = vfs_listxattr(old, NULL, 0); ++ if (list_size <= 0) { ++ if (list_size == -EOPNOTSUPP) ++ return 0; ++ return list_size; ++ } ++ ++ buf = kzalloc(list_size, GFP_KERNEL); ++ if (!buf) ++ return -ENOMEM; ++ ++ error = -ENOMEM; ++ value = kmalloc(XATTR_SIZE_MAX, GFP_KERNEL); ++ if (!value) ++ goto out; ++ ++ list_size = vfs_listxattr(old, buf, list_size); ++ if (list_size <= 0) { ++ error = list_size; ++ goto out_free_value; ++ } ++ ++ for (name = buf; name < (buf + list_size); name += strlen(name) + 1) { ++ size = vfs_getxattr(old, name, value, XATTR_SIZE_MAX); ++ if (size <= 0) { ++ error = size; ++ goto out_free_value; ++ } ++ error = vfs_setxattr(new, name, value, size, 0); ++ if (error) ++ goto out_free_value; ++ } ++ ++out_free_value: ++ kfree(value); ++out: ++ kfree(buf); ++ return error; ++} ++ ++static int ovl_copy_up_data(struct path *old, struct path *new, loff_t len) ++{ ++ struct file *old_file; ++ struct file *new_file; ++ int error = 0; ++ ++ if (len == 0) ++ return 0; ++ ++ old_file = vfs_open(old, O_RDONLY, current_cred()); ++ if (IS_ERR(old_file)) ++ return PTR_ERR(old_file); ++ ++ new_file = vfs_open(new, O_WRONLY, current_cred()); ++ if (IS_ERR(new_file)) { ++ error = PTR_ERR(new_file); ++ goto out_fput; ++ } ++ ++ /* FIXME: copy up sparse files efficiently */ ++ while (len) { ++ loff_t offset = new_file->f_pos; ++ size_t this_len = OVL_COPY_UP_CHUNK_SIZE; ++ long bytes; ++ ++ if (len < this_len) ++ this_len = len; ++ ++ if (signal_pending_state(TASK_KILLABLE, current)) { ++ error = -EINTR; ++ break; ++ } ++ ++ bytes = do_splice_direct(old_file, &offset, new_file, this_len, ++ SPLICE_F_MOVE); ++ if (bytes <= 0) { ++ error = bytes; ++ break; ++ } ++ ++ len -= bytes; ++ } ++ ++ fput(new_file); ++out_fput: ++ fput(old_file); ++ return error; ++} ++ ++static struct dentry *ovl_lookup_create(struct dentry *upperdir, ++ struct dentry *template) ++{ ++ int err; ++ struct dentry *newdentry; ++ struct qstr *name = &template->d_name; ++ ++ newdentry = lookup_one_len(name->name, upperdir, name->len); ++ if (IS_ERR(newdentry)) ++ return newdentry; ++ ++ if (newdentry->d_inode) { ++ const struct cred *old_cred; ++ struct cred *override_cred; ++ ++ /* No need to check whiteout if lower parent is non-existent */ ++ err = -EEXIST; ++ if (!ovl_dentry_lower(template->d_parent)) ++ goto out_dput; ++ ++ if (!S_ISLNK(newdentry->d_inode->i_mode)) ++ goto out_dput; ++ ++ err = -ENOMEM; ++ override_cred = prepare_creds(); ++ if (!override_cred) ++ goto out_dput; ++ ++ /* ++ * CAP_SYS_ADMIN for getxattr ++ * CAP_FOWNER for unlink in sticky directory ++ */ ++ cap_raise(override_cred->cap_effective, CAP_SYS_ADMIN); ++ cap_raise(override_cred->cap_effective, CAP_FOWNER); ++ old_cred = override_creds(override_cred); ++ ++ err = -EEXIST; ++ if (ovl_is_whiteout(newdentry)) ++ err = vfs_unlink(upperdir->d_inode, newdentry); ++ ++ revert_creds(old_cred); ++ put_cred(override_cred); ++ if (err) ++ goto out_dput; ++ ++ dput(newdentry); ++ newdentry = lookup_one_len(name->name, upperdir, name->len); ++ if (IS_ERR(newdentry)) { ++ ovl_whiteout(upperdir, template); ++ return newdentry; ++ } ++ ++ /* ++ * Whiteout just been successfully removed, parent ++ * i_mutex is still held, there's no way the lookup ++ * could return positive. ++ */ ++ WARN_ON(newdentry->d_inode); ++ } ++ ++ return newdentry; ++ ++out_dput: ++ dput(newdentry); ++ return ERR_PTR(err); ++} ++ ++static struct dentry *ovl_upper_create(struct dentry *upperdir, ++ struct dentry *dentry, ++ struct kstat *stat, const char *link) ++{ ++ int err; ++ struct dentry *newdentry; ++ struct inode *dir = upperdir->d_inode; ++ ++ newdentry = ovl_lookup_create(upperdir, dentry); ++ if (IS_ERR(newdentry)) ++ goto out; ++ ++ switch (stat->mode & S_IFMT) { ++ case S_IFREG: ++ err = vfs_create(dir, newdentry, stat->mode, NULL); ++ break; ++ ++ case S_IFDIR: ++ err = vfs_mkdir(dir, newdentry, stat->mode); ++ break; ++ ++ case S_IFCHR: ++ case S_IFBLK: ++ case S_IFIFO: ++ case S_IFSOCK: ++ err = vfs_mknod(dir, newdentry, stat->mode, stat->rdev); ++ break; ++ ++ case S_IFLNK: ++ err = vfs_symlink(dir, newdentry, link); ++ break; ++ ++ default: ++ err = -EPERM; ++ } ++ if (err) { ++ if (ovl_dentry_is_opaque(dentry)) ++ ovl_whiteout(upperdir, dentry); ++ dput(newdentry); ++ newdentry = ERR_PTR(err); ++ } ++ ++out: ++ return newdentry; ++ ++} ++ ++static char *ovl_read_symlink(struct dentry *realdentry) ++{ ++ int res; ++ char *buf; ++ struct inode *inode = realdentry->d_inode; ++ mm_segment_t old_fs; ++ ++ res = -EINVAL; ++ if (!inode->i_op->readlink) ++ goto err; ++ ++ res = -ENOMEM; ++ buf = (char *) __get_free_page(GFP_KERNEL); ++ if (!buf) ++ goto err; ++ ++ old_fs = get_fs(); ++ set_fs(get_ds()); ++ /* The cast to a user pointer is valid due to the set_fs() */ ++ res = inode->i_op->readlink(realdentry, ++ (char __user *)buf, PAGE_SIZE - 1); ++ set_fs(old_fs); ++ if (res < 0) { ++ free_page((unsigned long) buf); ++ goto err; ++ } ++ buf[res] = '\0'; ++ ++ return buf; ++ ++err: ++ return ERR_PTR(res); ++} ++ ++static int ovl_set_timestamps(struct dentry *upperdentry, struct kstat *stat) ++{ ++ struct iattr attr = { ++ .ia_valid = ATTR_ATIME | ATTR_MTIME | ATTR_ATIME_SET | ATTR_MTIME_SET, ++ .ia_atime = stat->atime, ++ .ia_mtime = stat->mtime, ++ }; ++ ++ return notify_change(upperdentry, &attr); ++} ++ ++static int ovl_set_mode(struct dentry *upperdentry, umode_t mode) ++{ ++ struct iattr attr = { ++ .ia_valid = ATTR_MODE, ++ .ia_mode = mode, ++ }; ++ ++ return notify_change(upperdentry, &attr); ++} ++ ++static int ovl_set_opaque(struct dentry *upperdentry) ++{ ++ int err; ++ const struct cred *old_cred; ++ struct cred *override_cred; ++ ++ override_cred = prepare_creds(); ++ if (!override_cred) ++ return -ENOMEM; ++ ++ /* CAP_SYS_ADMIN for setxattr of "trusted" namespace */ ++ cap_raise(override_cred->cap_effective, CAP_SYS_ADMIN); ++ old_cred = override_creds(override_cred); ++ err = vfs_setxattr(upperdentry, ovl_opaque_xattr, "y", 1, 0); ++ revert_creds(old_cred); ++ put_cred(override_cred); ++ ++ return err; ++} ++ ++static int ovl_remove_opaque(struct dentry *upperdentry) ++{ ++ int err; ++ const struct cred *old_cred; ++ struct cred *override_cred; ++ ++ override_cred = prepare_creds(); ++ if (!override_cred) ++ return -ENOMEM; ++ ++ /* CAP_SYS_ADMIN for removexattr of "trusted" namespace */ ++ cap_raise(override_cred->cap_effective, CAP_SYS_ADMIN); ++ old_cred = override_creds(override_cred); ++ err = vfs_removexattr(upperdentry, ovl_opaque_xattr); ++ revert_creds(old_cred); ++ put_cred(override_cred); ++ ++ return err; ++} ++ ++static int ovl_copy_up_locked(struct dentry *upperdir, struct dentry *dentry, ++ struct path *lowerpath, struct kstat *stat, ++ const char *link) ++{ ++ int err; ++ struct path newpath; ++ umode_t mode = stat->mode; ++ struct ovl_fs *ofs = dentry->d_sb->s_fs_info; ++ ++ /* Can't properly set mode on creation because of the umask */ ++ stat->mode &= S_IFMT; ++ ++ newpath.mnt = ofs->upper_mnt; ++ newpath.dentry = ovl_upper_create(upperdir, dentry, stat, link); ++ if (IS_ERR(newpath.dentry)) { ++ err = PTR_ERR(newpath.dentry); ++ ++ /* Already copied up? */ ++ if (err == -EEXIST && ovl_path_type(dentry) != OVL_PATH_LOWER) ++ return 0; ++ ++ return err; ++ } ++ ++ if (S_ISREG(stat->mode)) { ++ err = ovl_copy_up_data(lowerpath, &newpath, stat->size); ++ if (err) ++ goto err_remove; ++ } ++ ++ err = ovl_copy_up_xattr(lowerpath->dentry, newpath.dentry); ++ if (err) ++ goto err_remove; ++ ++ mutex_lock(&newpath.dentry->d_inode->i_mutex); ++ if (!S_ISLNK(stat->mode)) ++ err = ovl_set_mode(newpath.dentry, mode); ++ if (!err) ++ err = ovl_set_timestamps(newpath.dentry, stat); ++ mutex_unlock(&newpath.dentry->d_inode->i_mutex); ++ if (err) ++ goto err_remove; ++ ++ ovl_dentry_update(dentry, newpath.dentry); ++ ++ /* ++ * Easiest way to get rid of the lower dentry reference is to ++ * drop this dentry. This is neither needed nor possible for ++ * directories. ++ */ ++ if (!S_ISDIR(stat->mode)) ++ d_drop(dentry); ++ ++ return 0; ++ ++err_remove: ++ if (S_ISDIR(stat->mode)) ++ vfs_rmdir(upperdir->d_inode, newpath.dentry); ++ else ++ vfs_unlink(upperdir->d_inode, newpath.dentry); ++ ++ dput(newpath.dentry); ++ ++ return err; ++} ++ ++static int ovl_copy_up_one(struct dentry *parent, struct dentry *dentry, ++ struct path *lowerpath, struct kstat *stat) ++{ ++ int err; ++ struct kstat pstat; ++ struct path parentpath; ++ struct dentry *upperdir; ++ const struct cred *old_cred; ++ struct cred *override_cred; ++ char *link = NULL; ++ ++ ovl_path_upper(parent, &parentpath); ++ upperdir = parentpath.dentry; ++ ++ err = vfs_getattr(parentpath.mnt, parentpath.dentry, &pstat); ++ if (err) ++ return err; ++ ++ if (S_ISLNK(stat->mode)) { ++ link = ovl_read_symlink(lowerpath->dentry); ++ if (IS_ERR(link)) ++ return PTR_ERR(link); ++ } ++ ++ err = -ENOMEM; ++ override_cred = prepare_creds(); ++ if (!override_cred) ++ goto out_free_link; ++ ++ override_cred->fsuid = stat->uid; ++ override_cred->fsgid = stat->gid; ++ /* ++ * CAP_SYS_ADMIN for copying up extended attributes ++ * CAP_DAC_OVERRIDE for create ++ * CAP_FOWNER for chmod, timestamp update ++ * CAP_FSETID for chmod ++ * CAP_MKNOD for mknod ++ */ ++ cap_raise(override_cred->cap_effective, CAP_SYS_ADMIN); ++ cap_raise(override_cred->cap_effective, CAP_DAC_OVERRIDE); ++ cap_raise(override_cred->cap_effective, CAP_FOWNER); ++ cap_raise(override_cred->cap_effective, CAP_FSETID); ++ cap_raise(override_cred->cap_effective, CAP_MKNOD); ++ old_cred = override_creds(override_cred); ++ ++ mutex_lock_nested(&upperdir->d_inode->i_mutex, I_MUTEX_PARENT); ++ /* ++ * Using upper filesystem locking to protect against copy up ++ * racing with rename (rename means the copy up was already ++ * successful). ++ */ ++ if (dentry->d_parent != parent) { ++ WARN_ON((ovl_path_type(dentry) == OVL_PATH_LOWER)); ++ err = 0; ++ } else { ++ err = ovl_copy_up_locked(upperdir, dentry, lowerpath, ++ stat, link); ++ if (!err) { ++ /* Restore timestamps on parent (best effort) */ ++ ovl_set_timestamps(upperdir, &pstat); ++ } ++ } ++ ++ mutex_unlock(&upperdir->d_inode->i_mutex); ++ ++ revert_creds(old_cred); ++ put_cred(override_cred); ++ ++out_free_link: ++ if (link) ++ free_page((unsigned long) link); ++ ++ return err; ++} ++ ++static int ovl_copy_up(struct dentry *dentry) ++{ ++ int err; ++ ++ err = 0; ++ while (!err) { ++ struct dentry *next; ++ struct dentry *parent; ++ struct path lowerpath; ++ struct kstat stat; ++ enum ovl_path_type type = ovl_path_type(dentry); ++ ++ if (type != OVL_PATH_LOWER) ++ break; ++ ++ next = dget(dentry); ++ /* find the topmost dentry not yet copied up */ ++ for (;;) { ++ parent = dget_parent(next); ++ ++ type = ovl_path_type(parent); ++ if (type != OVL_PATH_LOWER) ++ break; ++ ++ dput(next); ++ next = parent; ++ } ++ ++ ovl_path_lower(next, &lowerpath); ++ err = vfs_getattr(lowerpath.mnt, lowerpath.dentry, &stat); ++ if (!err) ++ err = ovl_copy_up_one(parent, next, &lowerpath, &stat); ++ ++ dput(parent); ++ dput(next); ++ } ++ ++ return err; ++} ++ ++/* Optimize by not copying up the file first and truncating later */ ++static int ovl_copy_up_truncate(struct dentry *dentry, loff_t size) ++{ ++ int err; ++ struct kstat stat; ++ struct path lowerpath; ++ struct dentry *parent = dget_parent(dentry); ++ ++ err = ovl_copy_up(parent); ++ if (err) ++ goto out_dput_parent; ++ ++ ovl_path_lower(dentry, &lowerpath); ++ err = vfs_getattr(lowerpath.mnt, lowerpath.dentry, &stat); ++ if (err) ++ goto out_dput_parent; ++ ++ if (size < stat.size) ++ stat.size = size; ++ ++ err = ovl_copy_up_one(parent, dentry, &lowerpath, &stat); ++ ++out_dput_parent: ++ dput(parent); ++ return err; ++} ++ ++static int ovl_setattr(struct dentry *dentry, struct iattr *attr) ++{ ++ struct dentry *upperdentry; ++ int err; ++ ++ if ((attr->ia_valid & ATTR_SIZE) && !ovl_dentry_upper(dentry)) ++ err = ovl_copy_up_truncate(dentry, attr->ia_size); ++ else ++ err = ovl_copy_up(dentry); ++ if (err) ++ return err; ++ ++ upperdentry = ovl_dentry_upper(dentry); ++ ++ if (attr->ia_valid & (ATTR_KILL_SUID|ATTR_KILL_SGID)) ++ attr->ia_valid &= ~ATTR_MODE; ++ ++ mutex_lock(&upperdentry->d_inode->i_mutex); ++ err = notify_change(upperdentry, attr); ++ mutex_unlock(&upperdentry->d_inode->i_mutex); ++ ++ return err; ++} ++ ++static int ovl_getattr(struct vfsmount *mnt, struct dentry *dentry, ++ struct kstat *stat) ++{ ++ struct path realpath; ++ ++ ovl_path_real(dentry, &realpath); ++ return vfs_getattr(realpath.mnt, realpath.dentry, stat); ++} ++ ++static int ovl_dir_getattr(struct vfsmount *mnt, struct dentry *dentry, ++ struct kstat *stat) ++{ ++ int err; ++ enum ovl_path_type type; ++ struct path realpath; ++ ++ type = ovl_path_real(dentry, &realpath); ++ err = vfs_getattr(realpath.mnt, realpath.dentry, stat); ++ if (err) ++ return err; ++ ++ stat->dev = dentry->d_sb->s_dev; ++ stat->ino = dentry->d_inode->i_ino; ++ ++ /* ++ * It's probably not worth it to count subdirs to get the ++ * correct link count. nlink=1 seems to pacify 'find' and ++ * other utilities. ++ */ ++ if (type == OVL_PATH_MERGE) ++ stat->nlink = 1; ++ ++ return 0; ++} ++ ++static int ovl_permission(struct inode *inode, int mask, unsigned int flags) ++{ ++ struct ovl_entry *oe; ++ struct dentry *alias = NULL; ++ struct inode *realinode; ++ struct dentry *realdentry; ++ bool is_upper; ++ int err; ++ ++ if (S_ISDIR(inode->i_mode)) { ++ oe = inode->i_private; ++ } else if (flags & IPERM_FLAG_RCU) { ++ return -ECHILD; ++ } else { ++ /* ++ * For non-directories find an alias and get the info ++ * from there. ++ */ ++ spin_lock(&inode->i_lock); ++ if (WARN_ON(list_empty(&inode->i_dentry))) { ++ spin_unlock(&inode->i_lock); ++ return -ENOENT; ++ } ++ alias = list_entry(inode->i_dentry.next, struct dentry, d_alias); ++ dget(alias); ++ spin_unlock(&inode->i_lock); ++ oe = alias->d_fsdata; ++ } ++ ++ realdentry = ovl_upperdentry_dereference(oe); ++ is_upper = true; ++ if (!realdentry) { ++ realdentry = oe->lowerdentry; ++ is_upper = false; ++ } ++ ++ /* Careful in RCU walk mode */ ++ realinode = ACCESS_ONCE(realdentry->d_inode); ++ if (!realinode) { ++ WARN_ON(!(flags & IPERM_FLAG_RCU)); ++ return -ENOENT; ++ } ++ ++ if (mask & MAY_WRITE) { ++ umode_t mode = realinode->i_mode; ++ ++ /* ++ * Writes will always be redirected to upper layer, so ++ * ignore lower layer being read-only. ++ */ ++ err = -EROFS; ++ if (is_upper && IS_RDONLY(realinode) && ++ (S_ISREG(mode) || S_ISDIR(mode) || S_ISLNK(mode))) ++ goto out_dput; ++ ++ /* ++ * Nobody gets write access to an immutable file. ++ */ ++ err = -EACCES; ++ if (IS_IMMUTABLE(realinode)) ++ goto out_dput; ++ } ++ ++ if (realinode->i_op->permission) ++ err = realinode->i_op->permission(realinode, mask, flags); ++ else ++ err = generic_permission(realinode, mask, flags, ++ realinode->i_op->check_acl); ++out_dput: ++ dput(alias); ++ return err; ++} ++ ++static int ovl_create_object(struct dentry *dentry, int mode, dev_t rdev, ++ const char *link) ++{ ++ int err; ++ struct dentry *newdentry; ++ struct dentry *upperdir; ++ struct inode *inode; ++ struct kstat stat = { ++ .mode = mode, ++ .rdev = rdev, ++ }; ++ ++ err = -ENOMEM; ++ inode = ovl_new_inode(dentry->d_sb, mode, dentry->d_fsdata); ++ if (!inode) ++ goto out; ++ ++ err = ovl_copy_up(dentry->d_parent); ++ if (err) ++ goto out_iput; ++ ++ upperdir = ovl_dentry_upper(dentry->d_parent); ++ mutex_lock_nested(&upperdir->d_inode->i_mutex, I_MUTEX_PARENT); ++ ++ newdentry = ovl_upper_create(upperdir, dentry, &stat, link); ++ err = PTR_ERR(newdentry); ++ if (IS_ERR(newdentry)) ++ goto out_unlock; ++ ++ ovl_dentry_version_inc(dentry->d_parent); ++ if (ovl_dentry_is_opaque(dentry) && S_ISDIR(mode)) { ++ err = ovl_set_opaque(newdentry); ++ if (err) { ++ vfs_rmdir(upperdir->d_inode, newdentry); ++ ovl_whiteout(upperdir, dentry); ++ goto out_dput; ++ } ++ } ++ ovl_dentry_update(dentry, newdentry); ++ d_instantiate(dentry, inode); ++ inode = NULL; ++ newdentry = NULL; ++ err = 0; ++ ++out_dput: ++ dput(newdentry); ++out_unlock: ++ mutex_unlock(&upperdir->d_inode->i_mutex); ++out_iput: ++ iput(inode); ++out: ++ return err; ++} ++ ++static int ovl_create(struct inode *dir, struct dentry *dentry, int mode, ++ struct nameidata *nd) ++{ ++ return ovl_create_object(dentry, (mode & 07777) | S_IFREG, 0, NULL); ++} ++ ++static int ovl_mkdir(struct inode *dir, struct dentry *dentry, int mode) ++{ ++ return ovl_create_object(dentry, (mode & 07777) | S_IFDIR, 0, NULL); ++} ++ ++static int ovl_mknod(struct inode *dir, struct dentry *dentry, int mode, ++ dev_t rdev) ++{ ++ return ovl_create_object(dentry, mode, rdev, NULL); ++} ++ ++static int ovl_symlink(struct inode *dir, struct dentry *dentry, ++ const char *link) ++{ ++ return ovl_create_object(dentry, S_IFLNK, 0, link); ++} ++ ++struct ovl_link_data { ++ struct dentry *realdentry; ++ void *cookie; ++}; ++ ++static void *ovl_follow_link(struct dentry *dentry, struct nameidata *nd) ++{ ++ void *ret; ++ struct dentry *realdentry; ++ struct inode *realinode; ++ ++ realdentry = ovl_dentry_real(dentry); ++ realinode = realdentry->d_inode; ++ ++ if (WARN_ON(!realinode->i_op->follow_link)) ++ return ERR_PTR(-EPERM); ++ ++ ret = realinode->i_op->follow_link(realdentry, nd); ++ if (IS_ERR(ret)) ++ return ret; ++ ++ if (realinode->i_op->put_link) { ++ struct ovl_link_data *data; ++ ++ data = kmalloc(sizeof(struct ovl_link_data), GFP_KERNEL); ++ if (!data) { ++ realinode->i_op->put_link(realdentry, nd, ret); ++ return ERR_PTR(-ENOMEM); ++ } ++ data->realdentry = realdentry; ++ data->cookie = ret; ++ ++ return data; ++ } else { ++ return NULL; ++ } ++} ++ ++static void ovl_put_link(struct dentry *dentry, struct nameidata *nd, void *c) ++{ ++ struct inode *realinode; ++ struct ovl_link_data *data = c; ++ ++ if (!data) ++ return; ++ ++ realinode = data->realdentry->d_inode; ++ realinode->i_op->put_link(data->realdentry, nd, data->cookie); ++ kfree(data); ++} ++ ++static int ovl_readlink(struct dentry *dentry, char __user *buf, int bufsiz) ++{ ++ struct path realpath; ++ struct inode *realinode; ++ ++ ovl_path_real(dentry, &realpath); ++ realinode = realpath.dentry->d_inode; ++ ++ if (!realinode->i_op->readlink) ++ return -EINVAL; ++ ++ touch_atime(realpath.mnt, realpath.dentry); ++ ++ return realinode->i_op->readlink(realpath.dentry, buf, bufsiz); ++} ++ ++static int ovl_do_remove(struct dentry *dentry, bool is_dir) ++{ ++ int err; ++ enum ovl_path_type type; ++ struct path realpath; ++ struct dentry *upperdir; ++ ++ err = ovl_copy_up(dentry->d_parent); ++ if (err) ++ return err; ++ ++ upperdir = ovl_dentry_upper(dentry->d_parent); ++ mutex_lock_nested(&upperdir->d_inode->i_mutex, I_MUTEX_PARENT); ++ type = ovl_path_real(dentry, &realpath); ++ if (type != OVL_PATH_LOWER) { ++ err = -ESTALE; ++ if (realpath.dentry->d_parent != upperdir) ++ goto out_d_drop; ++ ++ if (is_dir) ++ err = vfs_rmdir(upperdir->d_inode, realpath.dentry); ++ else ++ err = vfs_unlink(upperdir->d_inode, realpath.dentry); ++ if (err) ++ goto out_d_drop; ++ ++ ovl_dentry_version_inc(dentry->d_parent); ++ } ++ ++ if (type != OVL_PATH_UPPER || ovl_dentry_is_opaque(dentry)) ++ err = ovl_whiteout(upperdir, dentry); ++ ++ /* ++ * Keeping this dentry hashed would mean having to release ++ * upperpath/lowerpath, which could only be done if we are the ++ * sole user of this dentry. Too tricky... Just unhash for ++ * now. ++ */ ++out_d_drop: ++ d_drop(dentry); ++ mutex_unlock(&upperdir->d_inode->i_mutex); ++ ++ return err; ++} ++ ++static int ovl_unlink(struct inode *dir, struct dentry *dentry) ++{ ++ return ovl_do_remove(dentry, false); ++} ++ ++static int ovl_check_empty_dir(struct dentry *dentry, struct list_head *list) ++{ ++ int err; ++ struct path lowerpath; ++ struct path upperpath; ++ struct ovl_cache_entry *p; ++ struct ovl_readdir_data rdd = { .list = list }; ++ ++ ovl_path_upper(dentry, &upperpath); ++ ovl_path_lower(dentry, &lowerpath); ++ ++ err = ovl_dir_read_merged(&upperpath, &lowerpath, &rdd); ++ if (err) ++ return err; ++ ++ err = 0; ++ ++ list_for_each_entry(p, list, l_node) { ++ if (p->is_whiteout) ++ continue; ++ ++ if (p->name[0] == '.') { ++ if (p->len == 1) ++ continue; ++ if (p->len == 2 && p->name[1] == '.') ++ continue; ++ } ++ err = -ENOTEMPTY; ++ break; ++ } ++ ++ return err; ++} ++ ++static int ovl_remove_whiteouts(struct dentry *dir, struct list_head *list) ++{ ++ struct path upperpath; ++ struct dentry *upperdir; ++ struct ovl_cache_entry *p; ++ const struct cred *old_cred; ++ struct cred *override_cred; ++ int ret = 0; ++ ++ ovl_path_upper(dir, &upperpath); ++ upperdir = upperpath.dentry; ++ ++ override_cred = prepare_creds(); ++ if (!override_cred) ++ return -ENOMEM; ++ ++ /* ++ * CAP_DAC_OVERRIDE for lookup and unlink ++ */ ++ cap_raise(override_cred->cap_effective, CAP_DAC_OVERRIDE); ++ old_cred = override_creds(override_cred); ++ ++ mutex_lock(&upperdir->d_inode->i_mutex); ++ list_for_each_entry(p, list, l_node) { ++ if (p->is_whiteout) { ++ struct dentry *dentry; ++ ++ dentry = lookup_one_len(p->name, upperdir, p->len); ++ if (IS_ERR(dentry)) { ++ ret = PTR_ERR(dentry); ++ break; ++ } ++ ret = vfs_unlink(upperdir->d_inode, dentry); ++ dput(dentry); ++ if (ret) ++ break; ++ } ++ } ++ mutex_unlock(&upperdir->d_inode->i_mutex); ++ ++ revert_creds(old_cred); ++ put_cred(override_cred); ++ ++ return ret; ++} ++ ++static int ovl_check_empty_and_clear(struct dentry *dentry, ++ enum ovl_path_type type) ++{ ++ int err; ++ LIST_HEAD(list); ++ ++ err = ovl_check_empty_dir(dentry, &list); ++ if (!err && type == OVL_PATH_MERGE) ++ err = ovl_remove_whiteouts(dentry, &list); ++ ++ ovl_cache_free(&list); ++ ++ return err; ++} ++ ++static int ovl_rmdir(struct inode *dir, struct dentry *dentry) ++{ ++ int err; ++ enum ovl_path_type type; ++ ++ type = ovl_path_type(dentry); ++ if (type != OVL_PATH_UPPER) { ++ err = ovl_check_empty_and_clear(dentry, type); ++ if (err) ++ return err; ++ } ++ ++ return ovl_do_remove(dentry, true); ++} ++ ++static int ovl_link(struct dentry *old, struct inode *newdir, ++ struct dentry *new) ++{ ++ int err; ++ struct dentry *olddentry; ++ struct dentry *newdentry; ++ struct dentry *upperdir; ++ ++ err = ovl_copy_up(old); ++ if (err) ++ goto out; ++ ++ err = ovl_copy_up(new->d_parent); ++ if (err) ++ goto out; ++ ++ upperdir = ovl_dentry_upper(new->d_parent); ++ mutex_lock_nested(&upperdir->d_inode->i_mutex, I_MUTEX_PARENT); ++ newdentry = ovl_lookup_create(upperdir, new); ++ err = PTR_ERR(newdentry); ++ if (IS_ERR(newdentry)) ++ goto out_unlock; ++ ++ olddentry = ovl_dentry_upper(old); ++ err = vfs_link(olddentry, upperdir->d_inode, newdentry); ++ if (!err) { ++ ovl_dentry_version_inc(new->d_parent); ++ ovl_dentry_update(new, newdentry); ++ ++ ihold(old->d_inode); ++ d_instantiate(new, old->d_inode); ++ } else { ++ if (ovl_dentry_is_opaque(new)) ++ ovl_whiteout(upperdir, new); ++ dput(newdentry); ++ } ++out_unlock: ++ mutex_unlock(&upperdir->d_inode->i_mutex); ++out: ++ return err; ++ ++} ++ ++static int ovl_rename(struct inode *olddir, struct dentry *old, ++ struct inode *newdir, struct dentry *new) ++{ ++ int err; ++ enum ovl_path_type old_type; ++ struct dentry *old_upperdir; ++ struct dentry *new_upperdir; ++ struct dentry *olddentry; ++ struct dentry *newdentry; ++ struct dentry *trap; ++ bool old_opaque; ++ bool new_opaque; ++ bool is_dir = S_ISDIR(old->d_inode->i_mode); ++ ++ /* Don't copy up directory trees */ ++ old_type = ovl_path_type(old); ++ if (old_type != OVL_PATH_UPPER && is_dir) ++ return -EXDEV; ++ ++ if (new->d_inode) { ++ enum ovl_path_type new_type; ++ ++ new_type = ovl_path_type(new); ++ ++ if (new_type == OVL_PATH_LOWER && old_type == OVL_PATH_LOWER) { ++ if (ovl_dentry_lower(old)->d_inode == ++ ovl_dentry_lower(new)->d_inode) ++ return 0; ++ } ++ if (new_type != OVL_PATH_LOWER && old_type != OVL_PATH_LOWER) { ++ if (ovl_dentry_upper(old)->d_inode == ++ ovl_dentry_upper(new)->d_inode) ++ return 0; ++ } ++ ++ if (new_type != OVL_PATH_UPPER && ++ S_ISDIR(new->d_inode->i_mode)) { ++ err = ovl_check_empty_and_clear(new, new_type); ++ if (err) ++ return err; ++ } ++ } ++ ++ err = ovl_copy_up(old); ++ if (err) ++ return err; ++ ++ err = ovl_copy_up(new->d_parent); ++ if (err) ++ return err; ++ ++ old_upperdir = ovl_dentry_upper(old->d_parent); ++ new_upperdir = ovl_dentry_upper(new->d_parent); ++ ++ trap = lock_rename(new_upperdir, old_upperdir); ++ ++ olddentry = ovl_dentry_upper(old); ++ newdentry = ovl_dentry_upper(new); ++ if (newdentry) { ++ dget(newdentry); ++ } else { ++ newdentry = ovl_lookup_create(new_upperdir, new); ++ err = PTR_ERR(newdentry); ++ if (IS_ERR(newdentry)) ++ goto out_unlock; ++ } ++ ++ err = -ESTALE; ++ if (olddentry->d_parent != old_upperdir) ++ goto out_dput; ++ if (newdentry->d_parent != new_upperdir) ++ goto out_dput; ++ if (olddentry == trap) ++ goto out_dput; ++ if (newdentry == trap) ++ goto out_dput; ++ ++ old_opaque = ovl_dentry_is_opaque(old); ++ new_opaque = ovl_dentry_is_opaque(new) || ++ ovl_path_type(new) != OVL_PATH_UPPER; ++ ++ if (is_dir && !old_opaque && new_opaque) { ++ err = ovl_set_opaque(olddentry); ++ if (err) ++ goto out_dput; ++ } ++ ++ err = vfs_rename(old_upperdir->d_inode, olddentry, ++ new_upperdir->d_inode, newdentry); ++ ++ if (err) { ++ if (ovl_dentry_is_opaque(new)) ++ ovl_whiteout(new_upperdir, new); ++ if (is_dir && !old_opaque && new_opaque) ++ ovl_remove_opaque(olddentry); ++ goto out_dput; ++ } ++ ++ if (old_type != OVL_PATH_UPPER || old_opaque) ++ err = ovl_whiteout(old_upperdir, old); ++ if (is_dir && old_opaque && !new_opaque) ++ ovl_remove_opaque(olddentry); ++ ++ if (old_opaque != new_opaque) ++ ovl_dentry_set_opaque(old, new_opaque); ++ ++ ovl_dentry_version_inc(old->d_parent); ++ ovl_dentry_version_inc(new->d_parent); ++ ++out_dput: ++ dput(newdentry); ++out_unlock: ++ unlock_rename(new_upperdir, old_upperdir); ++ return err; ++} ++ ++static bool ovl_is_private_xattr(const char *name) ++{ ++ return strncmp(name, "trusted.overlay.", 14) == 0; ++} ++ ++static int ovl_setxattr(struct dentry *dentry, const char *name, ++ const void *value, size_t size, int flags) ++{ ++ int err; ++ struct dentry *upperdentry; ++ ++ if (ovl_is_private_xattr(name)) ++ return -EPERM; ++ ++ err = ovl_copy_up(dentry); ++ if (err) ++ return err; ++ ++ upperdentry = ovl_dentry_upper(dentry); ++ return vfs_setxattr(upperdentry, name, value, size, flags); ++} ++ ++static ssize_t ovl_getxattr(struct dentry *dentry, const char *name, ++ void *value, size_t size) ++{ ++ if (ovl_path_type(dentry->d_parent) == OVL_PATH_MERGE && ++ ovl_is_private_xattr(name)) ++ return -ENODATA; ++ ++ return vfs_getxattr(ovl_dentry_real(dentry), name, value, size); ++} ++ ++static ssize_t ovl_listxattr(struct dentry *dentry, char *list, size_t size) ++{ ++ ssize_t res; ++ int off; ++ ++ res = vfs_listxattr(ovl_dentry_real(dentry), list, size); ++ if (res <= 0 || size == 0) ++ return res; ++ ++ if (ovl_path_type(dentry->d_parent) != OVL_PATH_MERGE) ++ return res; ++ ++ /* filter out private xattrs */ ++ for (off = 0; off < res;) { ++ char *s = list + off; ++ size_t slen = strlen(s) + 1; ++ ++ BUG_ON(off + slen > res); ++ ++ if (ovl_is_private_xattr(s)) { ++ res -= slen; ++ memmove(s, s + slen, res - off); ++ } else { ++ off += slen; ++ } ++ } ++ ++ return res; ++} ++ ++static int ovl_removexattr(struct dentry *dentry, const char *name) ++{ ++ int err; ++ struct path realpath; ++ enum ovl_path_type type; ++ ++ if (ovl_path_type(dentry->d_parent) == OVL_PATH_MERGE && ++ ovl_is_private_xattr(name)) ++ return -ENODATA; ++ ++ type = ovl_path_real(dentry, &realpath); ++ if (type == OVL_PATH_LOWER) { ++ err = vfs_getxattr(realpath.dentry, name, NULL, 0); ++ if (err < 0) ++ return err; ++ ++ err = ovl_copy_up(dentry); ++ if (err) ++ return err; ++ ++ ovl_path_upper(dentry, &realpath); ++ } ++ ++ return vfs_removexattr(realpath.dentry, name); ++} ++ ++static bool ovl_open_need_copy_up(int flags, enum ovl_path_type type, ++ struct dentry *realdentry) ++{ ++ if (type != OVL_PATH_LOWER) ++ return false; ++ ++ if (special_file(realdentry->d_inode->i_mode)) ++ return false; ++ ++ if (!(OPEN_FMODE(flags) & FMODE_WRITE) && !(flags & O_TRUNC)) ++ return false; ++ ++ return true; ++} ++ ++static struct file *ovl_open(struct dentry *dentry, int flags, ++ const struct cred *cred) ++{ ++ int err; ++ struct path realpath; ++ enum ovl_path_type type; ++ ++ type = ovl_path_real(dentry, &realpath); ++ if (ovl_open_need_copy_up(flags, type, realpath.dentry)) { ++ if (flags & O_TRUNC) ++ err = ovl_copy_up_truncate(dentry, 0); ++ else ++ err = ovl_copy_up(dentry); ++ if (err) ++ return ERR_PTR(err); ++ ++ ovl_path_upper(dentry, &realpath); ++ } ++ ++ return vfs_open(&realpath, flags, cred); ++} ++ ++static const struct inode_operations ovl_dir_inode_operations = { ++ .lookup = ovl_lookup, ++ .mkdir = ovl_mkdir, ++ .symlink = ovl_symlink, ++ .unlink = ovl_unlink, ++ .rmdir = ovl_rmdir, ++ .rename = ovl_rename, ++ .link = ovl_link, ++ .setattr = ovl_setattr, ++ .create = ovl_create, ++ .mknod = ovl_mknod, ++ .permission = ovl_permission, ++ .getattr = ovl_dir_getattr, ++ .setxattr = ovl_setxattr, ++ .getxattr = ovl_getxattr, ++ .listxattr = ovl_listxattr, ++ .removexattr = ovl_removexattr, ++}; ++ ++static const struct inode_operations ovl_file_inode_operations = { ++ .setattr = ovl_setattr, ++ .permission = ovl_permission, ++ .getattr = ovl_getattr, ++ .setxattr = ovl_setxattr, ++ .getxattr = ovl_getxattr, ++ .listxattr = ovl_listxattr, ++ .removexattr = ovl_removexattr, ++ .open = ovl_open, ++}; ++ ++static const struct inode_operations ovl_symlink_inode_operations = { ++ .setattr = ovl_setattr, ++ .follow_link = ovl_follow_link, ++ .put_link = ovl_put_link, ++ .readlink = ovl_readlink, ++ .getattr = ovl_getattr, ++ .setxattr = ovl_setxattr, ++ .getxattr = ovl_getxattr, ++ .listxattr = ovl_listxattr, ++ .removexattr = ovl_removexattr, ++}; ++ ++static struct inode *ovl_new_inode(struct super_block *sb, umode_t mode, ++ struct ovl_entry *oe) ++{ ++ struct inode *inode; ++ ++ inode = new_inode(sb); ++ if (!inode) ++ return NULL; ++ ++ mode &= S_IFMT; ++ ++ inode->i_ino = get_next_ino(); ++ inode->i_mode = mode; ++ inode->i_flags |= S_NOATIME | S_NOCMTIME; ++ ++ switch (mode) { ++ case S_IFDIR: ++ inode->i_private = oe; ++ inode->i_op = &ovl_dir_inode_operations; ++ inode->i_fop = &ovl_dir_operations; ++ break; ++ ++ case S_IFLNK: ++ inode->i_op = &ovl_symlink_inode_operations; ++ break; ++ ++ case S_IFREG: ++ case S_IFSOCK: ++ case S_IFBLK: ++ case S_IFCHR: ++ case S_IFIFO: ++ inode->i_op = &ovl_file_inode_operations; ++ break; ++ ++ default: ++ WARN(1, "illegal file type: %i\n", mode); ++ inode = NULL; ++ } ++ ++ return inode; ++ ++} ++ ++static void ovl_put_super(struct super_block *sb) ++{ ++ struct ovl_fs *ufs = sb->s_fs_info; ++ ++ if (!(sb->s_flags & MS_RDONLY)) ++ mnt_drop_write(ufs->upper_mnt); ++ ++ mntput(ufs->upper_mnt); ++ mntput(ufs->lower_mnt); ++ ++ kfree(ufs); ++} ++ ++static int ovl_remount_fs(struct super_block *sb, int *flagsp, char *data) ++{ ++ int flags = *flagsp; ++ struct ovl_fs *ufs = sb->s_fs_info; ++ ++ /* When remounting rw or ro, we need to adjust the write access to the ++ * upper fs. ++ */ ++ if (((flags ^ sb->s_flags) & MS_RDONLY) == 0) ++ /* No change to readonly status */ ++ return 0; ++ ++ if (flags & MS_RDONLY) { ++ mnt_drop_write(ufs->upper_mnt); ++ return 0; ++ } else ++ return mnt_want_write(ufs->upper_mnt); ++} ++ ++/** ++ * ovl_statfs ++ * @sb: The overlayfs super block ++ * @buf: The struct kstatfs to fill in with stats ++ * ++ * Get the filesystem statistics. As writes always target the upper layer ++ * filesystem pass the statfs to the same filesystem. ++ */ ++static int ovl_statfs(struct dentry *dentry, struct kstatfs *buf) ++{ ++ struct dentry *root_dentry = dentry->d_sb->s_root; ++ struct path path; ++ ovl_path_upper(root_dentry, &path); ++ ++ if (!path.dentry->d_sb->s_op->statfs) ++ return -ENOSYS; ++ return path.dentry->d_sb->s_op->statfs(path.dentry, buf); ++} ++ ++static const struct super_operations ovl_super_operations = { ++ .put_super = ovl_put_super, ++ .remount_fs = ovl_remount_fs, ++ .statfs = ovl_statfs, ++}; ++ ++struct ovl_config { ++ char *lowerdir; ++ char *upperdir; ++}; ++ ++enum { ++ Opt_lowerdir, ++ Opt_upperdir, ++ Opt_err, ++}; ++ ++static const match_table_t ovl_tokens = { ++ {Opt_lowerdir, "lowerdir=%s"}, ++ {Opt_upperdir, "upperdir=%s"}, ++ {Opt_err, NULL} ++}; ++ ++static int ovl_parse_opt(char *opt, struct ovl_config *config) ++{ ++ char *p; ++ ++ config->upperdir = NULL; ++ config->lowerdir = NULL; ++ ++ while ((p = strsep(&opt, ",")) != NULL) { ++ int token; ++ substring_t args[MAX_OPT_ARGS]; ++ ++ if (!*p) ++ continue; ++ ++ token = match_token(p, ovl_tokens, args); ++ switch (token) { ++ case Opt_upperdir: ++ kfree(config->upperdir); ++ config->upperdir = match_strdup(&args[0]); ++ if (!config->upperdir) ++ return -ENOMEM; ++ break; ++ ++ case Opt_lowerdir: ++ kfree(config->lowerdir); ++ config->lowerdir = match_strdup(&args[0]); ++ if (!config->lowerdir) ++ return -ENOMEM; ++ break; ++ ++ default: ++ return -EINVAL; ++ } ++ } ++ return 0; ++} ++ ++static int ovl_fill_super(struct super_block *sb, void *data, int silent) ++{ ++ struct path lowerpath; ++ struct path upperpath; ++ struct inode *root_inode; ++ struct dentry *root_dentry; ++ struct ovl_entry *oe; ++ struct ovl_fs *ufs; ++ struct ovl_config config; ++ int err; ++ ++ err = ovl_parse_opt((char *) data, &config); ++ if (err) ++ goto out; ++ ++ err = -EINVAL; ++ if (!config.upperdir || !config.lowerdir) { ++ printk(KERN_ERR "overlayfs: missing upperdir or lowerdir\n"); ++ goto out_free_config; ++ } ++ ++ err = -ENOMEM; ++ ufs = kmalloc(sizeof(struct ovl_fs), GFP_KERNEL); ++ if (!ufs) ++ goto out_free_config; ++ ++ oe = ovl_alloc_entry(); ++ if (oe == NULL) ++ goto out_free_ufs; ++ ++ root_inode = ovl_new_inode(sb, S_IFDIR, oe); ++ if (!root_inode) ++ goto out_free_oe; ++ ++ err = kern_path(config.upperdir, LOOKUP_FOLLOW, &upperpath); ++ if (err) ++ goto out_put_root; ++ ++ err = kern_path(config.lowerdir, LOOKUP_FOLLOW, &lowerpath); ++ if (err) ++ goto out_put_upperpath; ++ ++ err = -ENOTDIR; ++ if (!S_ISDIR(upperpath.dentry->d_inode->i_mode) || ++ !S_ISDIR(lowerpath.dentry->d_inode->i_mode)) ++ goto out_put_lowerpath; ++ ++ ufs->upper_mnt = clone_private_mount(&upperpath); ++ err = PTR_ERR(ufs->upper_mnt); ++ if (IS_ERR(ufs->upper_mnt)) { ++ printk(KERN_ERR "overlayfs: failed to clone upperpath\n"); ++ goto out_put_lowerpath; ++ } ++ ++ ufs->lower_mnt = clone_private_mount(&lowerpath); ++ err = PTR_ERR(ufs->lower_mnt); ++ if (IS_ERR(ufs->lower_mnt)) { ++ printk(KERN_ERR "overlayfs: failed to clone lowerpath\n"); ++ goto out_put_upper_mnt; ++ } ++ ++ if (!(sb->s_flags & MS_RDONLY)) { ++ err = mnt_want_write(ufs->upper_mnt); ++ if (err) ++ goto out_put_lower_mnt; ++ } ++ ++ err = -ENOMEM; ++ root_dentry = d_alloc_root(root_inode); ++ if (!root_dentry) ++ goto out_drop_write; ++ ++ mntput(upperpath.mnt); ++ mntput(lowerpath.mnt); ++ ++ oe->__upperdentry = upperpath.dentry; ++ oe->lowerdentry = lowerpath.dentry; ++ ++ root_dentry->d_fsdata = oe; ++ root_dentry->d_op = &ovl_dentry_operations; ++ ++ sb->s_op = &ovl_super_operations; ++ sb->s_root = root_dentry; ++ sb->s_fs_info = ufs; ++ ++ return 0; ++ ++out_drop_write: ++ if (!(sb->s_flags & MS_RDONLY)) ++ mnt_drop_write(ufs->upper_mnt); ++out_put_lower_mnt: ++ mntput(ufs->lower_mnt); ++out_put_upper_mnt: ++ mntput(ufs->upper_mnt); ++out_put_lowerpath: ++ path_put(&lowerpath); ++out_put_upperpath: ++ path_put(&upperpath); ++out_put_root: ++ iput(root_inode); ++out_free_oe: ++ kfree(oe); ++out_free_ufs: ++ kfree(ufs); ++out_free_config: ++ kfree(config.lowerdir); ++ kfree(config.upperdir); ++out: ++ return err; ++} ++ ++static struct dentry *ovl_mount(struct file_system_type *fs_type, int flags, ++ const char *dev_name, void *raw_data) ++{ ++ return mount_nodev(fs_type, flags, raw_data, ovl_fill_super); ++} ++ ++static struct file_system_type ovl_fs_type = { ++ .owner = THIS_MODULE, ++ .name = "overlayfs", ++ .mount = ovl_mount, ++ .kill_sb = kill_anon_super, ++}; ++ ++static int __init ovl_init(void) ++{ ++ return register_filesystem(&ovl_fs_type); ++} ++ ++static void __exit ovl_exit(void) ++{ ++ unregister_filesystem(&ovl_fs_type); ++} ++ ++module_init(ovl_init); ++module_exit(ovl_exit); +--- a/fs/Kconfig ++++ b/fs/Kconfig +@@ -63,6 +63,7 @@ source "fs/quota/Kconfig" + + source "fs/autofs4/Kconfig" + source "fs/fuse/Kconfig" ++source "fs/overlayfs/Kconfig" + + config CUSE + tristate "Character device in Userspace support" +--- a/fs/Makefile ++++ b/fs/Makefile +@@ -105,6 +105,7 @@ obj-$(CONFIG_QNX4FS_FS) += qnx4/ + obj-$(CONFIG_AUTOFS4_FS) += autofs4/ + obj-$(CONFIG_ADFS_FS) += adfs/ + obj-$(CONFIG_FUSE_FS) += fuse/ ++obj-$(CONFIG_OVERLAYFS_FS) += overlayfs/ + obj-$(CONFIG_UDF_FS) += udf/ + obj-$(CONFIG_SUN_OPENPROMFS) += openpromfs/ + obj-$(CONFIG_OMFS_FS) += omfs/ +--- /dev/null ++++ b/fs/overlayfs/Kconfig +@@ -0,0 +1,4 @@ ++config OVERLAYFS_FS ++ tristate "Overlay filesystem support" ++ help ++ Add support for overlay filesystem. +--- /dev/null ++++ b/fs/overlayfs/Makefile +@@ -0,0 +1,5 @@ ++# ++# Makefile for the overlay filesystem. ++# ++ ++obj-$(CONFIG_OVERLAYFS_FS) += overlayfs.o +--- /dev/null ++++ b/Documentation/filesystems/overlayfs.txt +@@ -0,0 +1,163 @@ ++Written by: Neil Brown ++ ++Overlay Filesystem ++================== ++ ++This document describes a prototype for a new approach to providing ++overlay-filesystem functionality in Linux (sometimes referred to as ++union-filesystems). An overlay-filesystem tries to present a ++filesystem which is the result over overlaying one filesystem on top ++of the other. ++ ++The result will inevitably fail to look exactly like a normal ++filesystem for various technical reasons. The expectation is that ++many use cases will be able to ignore these differences. ++ ++This approach is 'hybrid' because the objects that appear in the ++filesystem do not all appear to belong to that filesystem. In many ++cases an object accessed in the union will be indistinguishable ++from accessing the corresponding object from the original filesystem. ++This is most obvious from the 'st_dev' field returned by stat(2). ++ ++While directories will report an st_dev from the overlay-filesystem, ++all non-directory objects will report an st_dev from the lower or ++upper filesystem that is providing the object. Similarly st_ino will ++only be unique when combined with st_dev, and both of these can change ++over the lifetime of a non-directory object. Many applications and ++tools ignore these values and will not be affected. ++ ++Upper and Lower ++--------------- ++ ++An overlay filesystem combines two filesystems - an 'upper' filesystem ++and a 'lower' filesystem. When a name exists in both filesystems, the ++object in the 'upper' filesystem is visible while the object in the ++'lower' filesystem is either hidden or, in the case of directories, ++merged with the 'upper' object. ++ ++It would be more correct to refer to an upper and lower 'directory ++tree' rather than 'filesystem' as it is quite possible for both ++directory trees to be in the same filesystem and there is no ++requirement that the root of a filesystem be given for either upper or ++lower. ++ ++The lower filesystem can be any filesystem supported by Linux and does ++not need to be writable. The lower filesystem can even be another ++overlayfs. The upper filesystem will normally be writable and if it ++is it must support the creation of trusted.* extended attributes, and ++must provide valid d_type in readdir responses, at least for symbolic ++links - so NFS is not suitable. ++ ++A read-only overlay of two read-only filesystems may use any ++filesystem type. ++ ++Directories ++----------- ++ ++Overlaying mainly involved directories. If a given name appears in both ++upper and lower filesystems and refers to a non-directory in either, ++then the lower object is hidden - the name refers only to the upper ++object. ++ ++Where both upper and lower objects are directories, a merged directory ++is formed. ++ ++At mount time, the two directories given as mount options are combined ++into a merged directory. Then whenever a lookup is requested in such ++a merged directory, the lookup is performed in each actual directory ++and the combined result is cached in the dentry belonging to the overlay ++filesystem. If both actual lookups find directories, both are stored ++and a merged directory is created, otherwise only one is stored: the ++upper if it exists, else the lower. ++ ++Only the lists of names from directories are merged. Other content ++such as metadata and extended attributes are reported for the upper ++directory only. These attributes of the lower directory are hidden. ++ ++whiteouts and opaque directories ++-------------------------------- ++ ++In order to support rm and rmdir without changing the lower ++filesystem, an overlay filesystem needs to record in the upper filesystem ++that files have been removed. This is done using whiteouts and opaque ++directories (non-directories are always opaque). ++ ++The overlay filesystem uses extended attributes with a ++"trusted.overlay." prefix to record these details. ++ ++A whiteout is created as a symbolic link with target ++"(overlay-whiteout)" and with xattr "trusted.overlay.whiteout" set to "y". ++When a whiteout is found in the upper level of a merged directory, any ++matching name in the lower level is ignored, and the whiteout itself ++is also hidden. ++ ++A directory is made opaque by setting the xattr "trusted.overlay.opaque" ++to "y". Where the upper filesystem contains an opaque directory, any ++directory in the lower filesystem with the same name is ignored. ++ ++readdir ++------- ++ ++When a 'readdir' request is made on a merged directory, the upper and ++lower directories are each read and the name lists merged in the ++obvious way (upper is read first, then lower - entries that already ++exist are not re-added). This merged name list is cached in the ++'struct file' and so remains as long as the file is kept open. If the ++directory is opened and read by two processes at the same time, they ++will each have separate caches. A seekdir to the start of the ++directory (offset 0) followed by a readdir will cause the cache to be ++discarded and rebuilt. ++ ++This means that changes to the merged directory do not appear while a ++directory is being read. This is unlikely to be noticed by many ++programs. ++ ++seek offsets are assigned sequentially when the directories are read. ++Thus if ++ - read part of a directory ++ - remember an offset, and close the directory ++ - re-open the directory some time later ++ - seek to the remembered offset ++ ++there may be little correlation between the old and new locations in ++the list of filenames, particularly if anything has changed in the ++directory. ++ ++Readdir on directories that are not merged is simply handled by the ++underlying directory (upper or lower). ++ ++ ++Non-directories ++--------------- ++ ++Objects that are not directories (files, symlinks, device-special ++files etc.) are presented either from the upper or lower filesystem as ++appropriate. When a file in the lower filesystem is accessed in a way ++the requires write-access, such as opening for write access, changing ++some metadata etc., the file is first copied from the lower filesystem ++to the upper filesystem (copy_up). Note that creating a hard-link ++also requires copy_up, though of course creation of a symlink does ++not. ++ ++The copy_up process first makes sure that the containing directory ++exists in the upper filesystem - creating it and any parents as ++necessary. It then creates the object with the same metadata (owner, ++mode, mtime, symlink-target etc.) and then if the object is a file, the ++data is copied from the lower to the upper filesystem. Finally any ++extended attributes are copied up. ++ ++Once the copy_up is complete, the overlay filesystem simply ++provides direct access to the newly created file in the upper ++filesystem - future operations on the file are barely noticed by the ++overlay filesystem (though an operation on the name of the file such as ++rename or unlink will of course be noticed and handled). ++ ++Changes to underlying filesystems ++--------------------------------- ++ ++Offline changes, when the overlay is not mounted, are allowed to either ++the upper or the lower trees. ++ ++Changes to the underlying filesystems while part of a mounted overlay ++filesystem are not allowed. This is not yet enforced, but will be in ++the future. diff --git a/target/linux/generic/patches-2.6.39/101-netfilter_layer7_pktmatch.patch b/target/linux/generic/patches-2.6.39/101-netfilter_layer7_pktmatch.patch deleted file mode 100644 index f65e301fd1f..00000000000 --- a/target/linux/generic/patches-2.6.39/101-netfilter_layer7_pktmatch.patch +++ /dev/null @@ -1,108 +0,0 @@ ---- a/include/linux/netfilter/xt_layer7.h -+++ b/include/linux/netfilter/xt_layer7.h -@@ -8,6 +8,7 @@ struct xt_layer7_info { - char protocol[MAX_PROTOCOL_LEN]; - char pattern[MAX_PATTERN_LEN]; - u_int8_t invert; -+ u_int8_t pkt; - }; - - #endif /* _XT_LAYER7_H */ ---- a/net/netfilter/xt_layer7.c -+++ b/net/netfilter/xt_layer7.c -@@ -314,33 +314,35 @@ static int match_no_append(struct nf_con - } - - /* add the new app data to the conntrack. Return number of bytes added. */ --static int add_data(struct nf_conn * master_conntrack, -- char * app_data, int appdatalen) -+static int add_datastr(char *target, int offset, char *app_data, int len) - { - int length = 0, i; -- int oldlength = master_conntrack->layer7.app_data_len; -- -- /* This is a fix for a race condition by Deti Fliegl. However, I'm not -- clear on whether the race condition exists or whether this really -- fixes it. I might just be being dense... Anyway, if it's not really -- a fix, all it does is waste a very small amount of time. */ -- if(!master_conntrack->layer7.app_data) return 0; -+ if (!target) return 0; - - /* Strip nulls. Make everything lower case (our regex lib doesn't - do case insensitivity). Add it to the end of the current data. */ -- for(i = 0; i < maxdatalen-oldlength-1 && -- i < appdatalen; i++) { -+ for(i = 0; i < maxdatalen-offset-1 && i < len; i++) { - if(app_data[i] != '\0') { - /* the kernel version of tolower mungs 'upper ascii' */ -- master_conntrack->layer7.app_data[length+oldlength] = -+ target[length+offset] = - isascii(app_data[i])? - tolower(app_data[i]) : app_data[i]; - length++; - } - } -+ target[length+offset] = '\0'; -+ -+ return length; -+} -+ -+/* add the new app data to the conntrack. Return number of bytes added. */ -+static int add_data(struct nf_conn * master_conntrack, -+ char * app_data, int appdatalen) -+{ -+ int length; - -- master_conntrack->layer7.app_data[length+oldlength] = '\0'; -- master_conntrack->layer7.app_data_len = length + oldlength; -+ length = add_datastr(master_conntrack->layer7.app_data, master_conntrack->layer7.app_data_len, app_data, appdatalen); -+ master_conntrack->layer7.app_data_len += length; - - return length; - } -@@ -438,7 +440,7 @@ match(const struct sk_buff *skbin, - - enum ip_conntrack_info master_ctinfo, ctinfo; - struct nf_conn *master_conntrack, *conntrack; -- unsigned char * app_data; -+ unsigned char *app_data, *tmp_data; - unsigned int pattern_result, appdatalen; - regexp * comppattern; - -@@ -466,8 +468,8 @@ match(const struct sk_buff *skbin, - master_conntrack = master_ct(master_conntrack); - - /* if we've classified it or seen too many packets */ -- if(total_acct_packets(master_conntrack) > num_packets || -- master_conntrack->layer7.app_proto) { -+ if(!info->pkt && (total_acct_packets(master_conntrack) > num_packets || -+ master_conntrack->layer7.app_proto)) { - - pattern_result = match_no_append(conntrack, master_conntrack, - ctinfo, master_ctinfo, info); -@@ -500,6 +502,25 @@ match(const struct sk_buff *skbin, - /* the return value gets checked later, when we're ready to use it */ - comppattern = compile_and_cache(info->pattern, info->protocol); - -+ if (info->pkt) { -+ tmp_data = kmalloc(maxdatalen, GFP_ATOMIC); -+ if(!tmp_data){ -+ if (net_ratelimit()) -+ printk(KERN_ERR "layer7: out of memory in match, bailing.\n"); -+ return info->invert; -+ } -+ -+ tmp_data[0] = '\0'; -+ add_datastr(tmp_data, 0, app_data, appdatalen); -+ pattern_result = ((comppattern && regexec(comppattern, tmp_data)) ? 1 : 0); -+ -+ kfree(tmp_data); -+ tmp_data = NULL; -+ spin_unlock_bh(&l7_lock); -+ -+ return (pattern_result ^ info->invert); -+ } -+ - /* On the first packet of a connection, allocate space for app data */ - if(total_acct_packets(master_conntrack) == 1 && !skb->cb[0] && - !master_conntrack->layer7.app_data){ diff --git a/target/linux/generic/patches-2.6.39/102-netfilter_layer7_match.patch b/target/linux/generic/patches-2.6.39/102-netfilter_layer7_match.patch deleted file mode 100644 index b2e48c824f8..00000000000 --- a/target/linux/generic/patches-2.6.39/102-netfilter_layer7_match.patch +++ /dev/null @@ -1,51 +0,0 @@ ---- a/net/netfilter/xt_layer7.c -+++ b/net/netfilter/xt_layer7.c -@@ -415,7 +415,9 @@ static int layer7_write_proc(struct file - } - - static bool --#if LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 28) -+#if LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 35) -+match(const struct sk_buff *skbin, struct xt_action_param *par) -+#elif LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 28) - match(const struct sk_buff *skbin, const struct xt_match_param *par) - #else - match(const struct sk_buff *skbin, -@@ -597,14 +599,19 @@ match(const struct sk_buff *skbin, - } - - // load nf_conntrack_ipv4 -+#if LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 35) -+static int -+#else -+static bool -+#endif - #if LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 28) --static bool check(const struct xt_mtchk_param *par) -+check(const struct xt_mtchk_param *par) - { - if (nf_ct_l3proto_try_module_get(par->match->family) < 0) { - printk(KERN_WARNING "can't load conntrack support for " - "proto=%d\n", par->match->family); - #else --static bool check(const char *tablename, const void *inf, -+check(const char *tablename, const void *inf, - const struct xt_match *match, void *matchinfo, - unsigned int hook_mask) - { -@@ -612,9 +619,15 @@ static bool check(const char *tablename, - printk(KERN_WARNING "can't load conntrack support for " - "proto=%d\n", match->family); - #endif -+#if LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 35) -+ return -EINVAL; -+ } -+ return 0; -+#else - return 0; - } - return 1; -+#endif - } - - diff --git a/target/linux/generic/patches-2.6.39/103-netfilter_layer7_2.6.36_fix.patch b/target/linux/generic/patches-2.6.39/103-netfilter_layer7_2.6.36_fix.patch deleted file mode 100644 index 58e5c30a3f7..00000000000 --- a/target/linux/generic/patches-2.6.39/103-netfilter_layer7_2.6.36_fix.patch +++ /dev/null @@ -1,61 +0,0 @@ ---- a/net/netfilter/Kconfig -+++ b/net/netfilter/Kconfig -@@ -834,6 +834,27 @@ config NETFILTER_XT_MATCH_IPVS - - If unsure, say N. - -+config NETFILTER_XT_MATCH_LAYER7 -+ tristate '"layer7" match support' -+ depends on EXPERIMENTAL -+ depends on NETFILTER_XTABLES -+ depends on NETFILTER_ADVANCED -+ depends on NF_CONNTRACK -+ help -+ Say Y if you want to be able to classify connections (and their -+ packets) based on regular expression matching of their application -+ layer data. This is one way to classify applications such as -+ peer-to-peer filesharing systems that do not always use the same -+ port. -+ -+ To compile it as a module, choose M here. If unsure, say N. -+ -+config NETFILTER_XT_MATCH_LAYER7_DEBUG -+ bool 'Layer 7 debugging output' -+ depends on NETFILTER_XT_MATCH_LAYER7 -+ help -+ Say Y to get lots of debugging output. -+ - config NETFILTER_XT_MATCH_LENGTH - tristate '"length" match support' - depends on NETFILTER_ADVANCED -@@ -1020,26 +1041,11 @@ config NETFILTER_XT_MATCH_STATE - - To compile it as a module, choose M here. If unsure, say N. - --config NETFILTER_XT_MATCH_LAYER7 -- tristate '"layer7" match support' -- depends on NETFILTER_XTABLES -- depends on EXPERIMENTAL && (IP_NF_CONNTRACK || NF_CONNTRACK) -- depends on NETFILTER_ADVANCED -- help -- Say Y if you want to be able to classify connections (and their -- packets) based on regular expression matching of their application -- layer data. This is one way to classify applications such as -- peer-to-peer filesharing systems that do not always use the same -- port. -- -- To compile it as a module, choose M here. If unsure, say N. -- - config NETFILTER_XT_MATCH_LAYER7_DEBUG -- bool 'Layer 7 debugging output' -- depends on NETFILTER_XT_MATCH_LAYER7 -- help -- Say Y to get lots of debugging output. -- -+ bool 'Layer 7 debugging output' -+ depends on NETFILTER_XT_MATCH_LAYER7 -+ help -+ Say Y to get lots of debugging output. - - config NETFILTER_XT_MATCH_STATISTIC - tristate '"statistic" match support' diff --git a/target/linux/generic/patches-2.6.39/160-netfilter_cisco_794x_iphone.patch b/target/linux/generic/patches-2.6.39/160-netfilter_cisco_794x_iphone.patch deleted file mode 100644 index 662a499d179..00000000000 --- a/target/linux/generic/patches-2.6.39/160-netfilter_cisco_794x_iphone.patch +++ /dev/null @@ -1,118 +0,0 @@ ---- a/include/linux/netfilter/nf_conntrack_sip.h -+++ b/include/linux/netfilter/nf_conntrack_sip.h -@@ -2,12 +2,15 @@ - #define __NF_CONNTRACK_SIP_H__ - #ifdef __KERNEL__ - -+#include -+ - #define SIP_PORT 5060 - #define SIP_TIMEOUT 3600 - - struct nf_ct_sip_master { - unsigned int register_cseq; - unsigned int invite_cseq; -+ __be16 forced_dport; - }; - - enum sip_expectation_classes { ---- a/net/ipv4/netfilter/nf_nat_sip.c -+++ b/net/ipv4/netfilter/nf_nat_sip.c -@@ -73,6 +73,7 @@ static int map_addr(struct sk_buff *skb, - enum ip_conntrack_info ctinfo; - struct nf_conn *ct = nf_ct_get(skb, &ctinfo); - enum ip_conntrack_dir dir = CTINFO2DIR(ctinfo); -+ struct nf_conn_help *help = nfct_help(ct); - char buffer[sizeof("nnn.nnn.nnn.nnn:nnnnn")]; - unsigned int buflen; - __be32 newaddr; -@@ -85,7 +86,8 @@ static int map_addr(struct sk_buff *skb, - } else if (ct->tuplehash[dir].tuple.dst.u3.ip == addr->ip && - ct->tuplehash[dir].tuple.dst.u.udp.port == port) { - newaddr = ct->tuplehash[!dir].tuple.src.u3.ip; -- newport = ct->tuplehash[!dir].tuple.src.u.udp.port; -+ newport = help->help.ct_sip_info.forced_dport ? : -+ ct->tuplehash[!dir].tuple.src.u.udp.port; - } else - return 1; - -@@ -121,6 +123,7 @@ static unsigned int ip_nat_sip(struct sk - enum ip_conntrack_info ctinfo; - struct nf_conn *ct = nf_ct_get(skb, &ctinfo); - enum ip_conntrack_dir dir = CTINFO2DIR(ctinfo); -+ struct nf_conn_help *help = nfct_help(ct); - unsigned int coff, matchoff, matchlen; - enum sip_header_types hdr; - union nf_inet_addr addr; -@@ -229,6 +232,20 @@ next: - !map_sip_addr(skb, dataoff, dptr, datalen, SIP_HDR_TO)) - return NF_DROP; - -+ /* Mangle destination port for Cisco phones, then fix up checksums */ -+ if (dir == IP_CT_DIR_REPLY && help->help.ct_sip_info.forced_dport) { -+ struct udphdr *uh; -+ -+ if (!skb_make_writable(skb, skb->len)) -+ return NF_DROP; -+ -+ uh = (struct udphdr *)(skb->data + ip_hdrlen(skb)); -+ uh->dest = help->help.ct_sip_info.forced_dport; -+ -+ if (!nf_nat_mangle_udp_packet(skb, ct, ctinfo, 0, 0, NULL, 0)) -+ return NF_DROP; -+ } -+ - return NF_ACCEPT; - } - -@@ -280,8 +297,10 @@ static unsigned int ip_nat_sip_expect(st - enum ip_conntrack_info ctinfo; - struct nf_conn *ct = nf_ct_get(skb, &ctinfo); - enum ip_conntrack_dir dir = CTINFO2DIR(ctinfo); -+ struct nf_conn_help *help = nfct_help(ct); - __be32 newip; - u_int16_t port; -+ __be16 srcport; - char buffer[sizeof("nnn.nnn.nnn.nnn:nnnnn")]; - unsigned buflen; - -@@ -294,8 +313,9 @@ static unsigned int ip_nat_sip_expect(st - /* If the signalling port matches the connection's source port in the - * original direction, try to use the destination port in the opposite - * direction. */ -- if (exp->tuple.dst.u.udp.port == -- ct->tuplehash[dir].tuple.src.u.udp.port) -+ srcport = help->help.ct_sip_info.forced_dport ? : -+ ct->tuplehash[dir].tuple.src.u.udp.port; -+ if (exp->tuple.dst.u.udp.port == srcport) - port = ntohs(ct->tuplehash[!dir].tuple.dst.u.udp.port); - else - port = ntohs(exp->tuple.dst.u.udp.port); ---- a/net/netfilter/nf_conntrack_sip.c -+++ b/net/netfilter/nf_conntrack_sip.c -@@ -1363,8 +1363,25 @@ static int process_sip_request(struct sk - { - enum ip_conntrack_info ctinfo; - struct nf_conn *ct = nf_ct_get(skb, &ctinfo); -+ struct nf_conn_help *help = nfct_help(ct); -+ enum ip_conntrack_dir dir = CTINFO2DIR(ctinfo); - unsigned int matchoff, matchlen; - unsigned int cseq, i; -+ union nf_inet_addr addr; -+ __be16 port; -+ -+ /* Many Cisco IP phones use a high source port for SIP requests, but -+ * listen for the response on port 5060. If we are the local -+ * router for one of these phones, save the port number from the -+ * Via: header so that nf_nat_sip can redirect the responses to -+ * the correct port. -+ */ -+ if (ct_sip_parse_header_uri(ct, *dptr, NULL, *datalen, -+ SIP_HDR_VIA_UDP, NULL, &matchoff, -+ &matchlen, &addr, &port) > 0 && -+ port != ct->tuplehash[dir].tuple.src.u.udp.port && -+ nf_inet_addr_cmp(&addr, &ct->tuplehash[dir].tuple.src.u3)) -+ help->help.ct_sip_info.forced_dport = port; - - for (i = 0; i < ARRAY_SIZE(sip_handlers); i++) { - const struct sip_handler *handler; diff --git a/target/linux/generic/patches-2.6.39/180-netfilter_depends.patch b/target/linux/generic/patches-2.6.39/180-netfilter_depends.patch deleted file mode 100644 index 656046024f6..00000000000 --- a/target/linux/generic/patches-2.6.39/180-netfilter_depends.patch +++ /dev/null @@ -1,18 +0,0 @@ ---- a/net/netfilter/Kconfig -+++ b/net/netfilter/Kconfig -@@ -163,7 +163,6 @@ config NF_CONNTRACK_FTP - - config NF_CONNTRACK_H323 - tristate "H.323 protocol support" -- depends on (IPV6 || IPV6=n) - depends on NETFILTER_ADVANCED - help - H.323 is a VoIP signalling protocol from ITU-T. As one of the most -@@ -611,7 +610,6 @@ config NETFILTER_XT_TARGET_SECMARK - - config NETFILTER_XT_TARGET_TCPMSS - tristate '"TCPMSS" target support' -- depends on (IPV6 || IPV6=n) - default m if NETFILTER_ADVANCED=n - ---help--- - This option adds a `TCPMSS' target, which allows you to alter the diff --git a/target/linux/generic/patches-2.6.39/190-netfilter_rtsp.patch b/target/linux/generic/patches-2.6.39/190-netfilter_rtsp.patch deleted file mode 100644 index ead213a4f9e..00000000000 --- a/target/linux/generic/patches-2.6.39/190-netfilter_rtsp.patch +++ /dev/null @@ -1,1366 +0,0 @@ ---- /dev/null -+++ b/include/linux/netfilter/nf_conntrack_rtsp.h -@@ -0,0 +1,63 @@ -+/* -+ * RTSP extension for IP connection tracking. -+ * (C) 2003 by Tom Marshall -+ * based on ip_conntrack_irc.h -+ * -+ * This program is free software; you can redistribute it and/or -+ * modify it under the terms of the GNU General Public License -+ * as published by the Free Software Foundation; either version -+ * 2 of the License, or (at your option) any later version. -+ */ -+#ifndef _IP_CONNTRACK_RTSP_H -+#define _IP_CONNTRACK_RTSP_H -+ -+//#define IP_NF_RTSP_DEBUG 1 -+#define IP_NF_RTSP_VERSION "0.6.21" -+ -+#ifdef __KERNEL__ -+/* port block types */ -+typedef enum { -+ pb_single, /* client_port=x */ -+ pb_range, /* client_port=x-y */ -+ pb_discon /* client_port=x/y (rtspbis) */ -+} portblock_t; -+ -+/* We record seq number and length of rtsp headers here, all in host order. */ -+ -+/* -+ * This structure is per expected connection. It is a member of struct -+ * ip_conntrack_expect. The TCP SEQ for the conntrack expect is stored -+ * there and we are expected to only store the length of the data which -+ * needs replaced. If a packet contains multiple RTSP messages, we create -+ * one expected connection per message. -+ * -+ * We use these variables to mark the entire header block. This may seem -+ * like overkill, but the nature of RTSP requires it. A header may appear -+ * multiple times in a message. We must treat two Transport headers the -+ * same as one Transport header with two entries. -+ */ -+struct ip_ct_rtsp_expect -+{ -+ u_int32_t len; /* length of header block */ -+ portblock_t pbtype; /* Type of port block that was requested */ -+ u_int16_t loport; /* Port that was requested, low or first */ -+ u_int16_t hiport; /* Port that was requested, high or second */ -+#if 0 -+ uint method; /* RTSP method */ -+ uint cseq; /* CSeq from request */ -+#endif -+}; -+ -+extern unsigned int (*nf_nat_rtsp_hook)(struct sk_buff *skb, -+ enum ip_conntrack_info ctinfo, -+ unsigned int matchoff, unsigned int matchlen, -+ struct ip_ct_rtsp_expect *prtspexp, -+ struct nf_conntrack_expect *exp); -+ -+extern void (*nf_nat_rtsp_hook_expectfn)(struct nf_conn *ct, struct nf_conntrack_expect *exp); -+ -+#define RTSP_PORT 554 -+ -+#endif /* __KERNEL__ */ -+ -+#endif /* _IP_CONNTRACK_RTSP_H */ ---- /dev/null -+++ b/include/linux/netfilter_helpers.h -@@ -0,0 +1,133 @@ -+/* -+ * Helpers for netfiler modules. This file provides implementations for basic -+ * functions such as strncasecmp(), etc. -+ * -+ * gcc will warn for defined but unused functions, so we only include the -+ * functions requested. The following macros are used: -+ * NF_NEED_STRNCASECMP nf_strncasecmp() -+ * NF_NEED_STRTOU16 nf_strtou16() -+ * NF_NEED_STRTOU32 nf_strtou32() -+ */ -+#ifndef _NETFILTER_HELPERS_H -+#define _NETFILTER_HELPERS_H -+ -+/* Only include these functions for kernel code. */ -+#ifdef __KERNEL__ -+ -+#include -+#define iseol(c) ( (c) == '\r' || (c) == '\n' ) -+ -+/* -+ * The standard strncasecmp() -+ */ -+#ifdef NF_NEED_STRNCASECMP -+static int -+nf_strncasecmp(const char* s1, const char* s2, u_int32_t len) -+{ -+ if (s1 == NULL || s2 == NULL) -+ { -+ if (s1 == NULL && s2 == NULL) -+ { -+ return 0; -+ } -+ return (s1 == NULL) ? -1 : 1; -+ } -+ while (len > 0 && tolower(*s1) == tolower(*s2)) -+ { -+ len--; -+ s1++; -+ s2++; -+ } -+ return ( (len == 0) ? 0 : (tolower(*s1) - tolower(*s2)) ); -+} -+#endif /* NF_NEED_STRNCASECMP */ -+ -+/* -+ * Parse a string containing a 16-bit unsigned integer. -+ * Returns the number of chars used, or zero if no number is found. -+ */ -+#ifdef NF_NEED_STRTOU16 -+static int -+nf_strtou16(const char* pbuf, u_int16_t* pval) -+{ -+ int n = 0; -+ -+ *pval = 0; -+ while (isdigit(pbuf[n])) -+ { -+ *pval = (*pval * 10) + (pbuf[n] - '0'); -+ n++; -+ } -+ -+ return n; -+} -+#endif /* NF_NEED_STRTOU16 */ -+ -+/* -+ * Parse a string containing a 32-bit unsigned integer. -+ * Returns the number of chars used, or zero if no number is found. -+ */ -+#ifdef NF_NEED_STRTOU32 -+static int -+nf_strtou32(const char* pbuf, u_int32_t* pval) -+{ -+ int n = 0; -+ -+ *pval = 0; -+ while (pbuf[n] >= '0' && pbuf[n] <= '9') -+ { -+ *pval = (*pval * 10) + (pbuf[n] - '0'); -+ n++; -+ } -+ -+ return n; -+} -+#endif /* NF_NEED_STRTOU32 */ -+ -+/* -+ * Given a buffer and length, advance to the next line and mark the current -+ * line. -+ */ -+#ifdef NF_NEED_NEXTLINE -+static int -+nf_nextline(char* p, uint len, uint* poff, uint* plineoff, uint* plinelen) -+{ -+ uint off = *poff; -+ uint physlen = 0; -+ -+ if (off >= len) -+ { -+ return 0; -+ } -+ -+ while (p[off] != '\n') -+ { -+ if (len-off <= 1) -+ { -+ return 0; -+ } -+ -+ physlen++; -+ off++; -+ } -+ -+ /* if we saw a crlf, physlen needs adjusted */ -+ if (physlen > 0 && p[off] == '\n' && p[off-1] == '\r') -+ { -+ physlen--; -+ } -+ -+ /* advance past the newline */ -+ off++; -+ -+ *plineoff = *poff; -+ *plinelen = physlen; -+ *poff = off; -+ -+ return 1; -+} -+#endif /* NF_NEED_NEXTLINE */ -+ -+#endif /* __KERNEL__ */ -+ -+#endif /* _NETFILTER_HELPERS_H */ ---- /dev/null -+++ b/include/linux/netfilter_mime.h -@@ -0,0 +1,89 @@ -+/* -+ * MIME functions for netfilter modules. This file provides implementations -+ * for basic MIME parsing. MIME headers are used in many protocols, such as -+ * HTTP, RTSP, SIP, etc. -+ * -+ * gcc will warn for defined but unused functions, so we only include the -+ * functions requested. The following macros are used: -+ * NF_NEED_MIME_NEXTLINE nf_mime_nextline() -+ */ -+#ifndef _NETFILTER_MIME_H -+#define _NETFILTER_MIME_H -+ -+/* Only include these functions for kernel code. */ -+#ifdef __KERNEL__ -+ -+#include -+ -+/* -+ * Given a buffer and length, advance to the next line and mark the current -+ * line. If the current line is empty, *plinelen will be set to zero. If -+ * not, it will be set to the actual line length (including CRLF). -+ * -+ * 'line' in this context means logical line (includes LWS continuations). -+ * Returns 1 on success, 0 on failure. -+ */ -+#ifdef NF_NEED_MIME_NEXTLINE -+static int -+nf_mime_nextline(char* p, uint len, uint* poff, uint* plineoff, uint* plinelen) -+{ -+ uint off = *poff; -+ uint physlen = 0; -+ int is_first_line = 1; -+ -+ if (off >= len) -+ { -+ return 0; -+ } -+ -+ do -+ { -+ while (p[off] != '\n') -+ { -+ if (len-off <= 1) -+ { -+ return 0; -+ } -+ -+ physlen++; -+ off++; -+ } -+ -+ /* if we saw a crlf, physlen needs adjusted */ -+ if (physlen > 0 && p[off] == '\n' && p[off-1] == '\r') -+ { -+ physlen--; -+ } -+ -+ /* advance past the newline */ -+ off++; -+ -+ /* check for an empty line */ -+ if (physlen == 0) -+ { -+ break; -+ } -+ -+ /* check for colon on the first physical line */ -+ if (is_first_line) -+ { -+ is_first_line = 0; -+ if (memchr(p+(*poff), ':', physlen) == NULL) -+ { -+ return 0; -+ } -+ } -+ } -+ while (p[off] == ' ' || p[off] == '\t'); -+ -+ *plineoff = *poff; -+ *plinelen = (physlen == 0) ? 0 : (off - *poff); -+ *poff = off; -+ -+ return 1; -+} -+#endif /* NF_NEED_MIME_NEXTLINE */ -+ -+#endif /* __KERNEL__ */ -+ -+#endif /* _NETFILTER_MIME_H */ ---- a/net/ipv4/netfilter/Makefile -+++ b/net/ipv4/netfilter/Makefile -@@ -26,6 +26,7 @@ obj-$(CONFIG_NF_NAT_AMANDA) += nf_nat_am - obj-$(CONFIG_NF_NAT_FTP) += nf_nat_ftp.o - obj-$(CONFIG_NF_NAT_H323) += nf_nat_h323.o - obj-$(CONFIG_NF_NAT_IRC) += nf_nat_irc.o -+obj-$(CONFIG_NF_NAT_RTSP) += nf_nat_rtsp.o - obj-$(CONFIG_NF_NAT_PPTP) += nf_nat_pptp.o - obj-$(CONFIG_NF_NAT_SIP) += nf_nat_sip.o - obj-$(CONFIG_NF_NAT_SNMP_BASIC) += nf_nat_snmp_basic.o ---- a/net/netfilter/Kconfig -+++ b/net/netfilter/Kconfig -@@ -289,6 +289,16 @@ config NF_CONNTRACK_TFTP - - To compile it as a module, choose M here. If unsure, say N. - -+config NF_CONNTRACK_RTSP -+ tristate "RTSP protocol support" -+ depends on NF_CONNTRACK -+ help -+ Support the RTSP protocol. This allows UDP transports to be setup -+ properly, including RTP and RDT. -+ -+ If you want to compile it as a module, say 'M' here and read -+ Documentation/modules.txt. If unsure, say 'Y'. -+ - config NF_CT_NETLINK - tristate 'Connection tracking netlink interface' - select NETFILTER_NETLINK ---- a/net/netfilter/Makefile -+++ b/net/netfilter/Makefile -@@ -36,6 +36,7 @@ obj-$(CONFIG_NF_CONNTRACK_PPTP) += nf_co - obj-$(CONFIG_NF_CONNTRACK_SANE) += nf_conntrack_sane.o - obj-$(CONFIG_NF_CONNTRACK_SIP) += nf_conntrack_sip.o - obj-$(CONFIG_NF_CONNTRACK_TFTP) += nf_conntrack_tftp.o -+obj-$(CONFIG_NF_CONNTRACK_RTSP) += nf_conntrack_rtsp.o - - # transparent proxy support - obj-$(CONFIG_NETFILTER_TPROXY) += nf_tproxy_core.o ---- a/net/ipv4/netfilter/Kconfig -+++ b/net/ipv4/netfilter/Kconfig -@@ -248,6 +248,11 @@ config NF_NAT_IRC - depends on NF_CONNTRACK && NF_NAT - default NF_NAT && NF_CONNTRACK_IRC - -+config NF_NAT_RTSP -+ tristate -+ depends on IP_NF_IPTABLES && NF_CONNTRACK && NF_NAT -+ default NF_NAT && NF_CONNTRACK_RTSP -+ - config NF_NAT_TFTP - tristate - depends on NF_CONNTRACK && NF_NAT ---- /dev/null -+++ b/net/netfilter/nf_conntrack_rtsp.c -@@ -0,0 +1,517 @@ -+/* -+ * RTSP extension for IP connection tracking -+ * (C) 2003 by Tom Marshall -+ * based on ip_conntrack_irc.c -+ * -+ * This program is free software; you can redistribute it and/or -+ * modify it under the terms of the GNU General Public License -+ * as published by the Free Software Foundation; either version -+ * 2 of the License, or (at your option) any later version. -+ * -+ * Module load syntax: -+ * insmod nf_conntrack_rtsp.o ports=port1,port2,...port -+ * max_outstanding=n setup_timeout=secs -+ * -+ * If no ports are specified, the default will be port 554. -+ * -+ * With max_outstanding you can define the maximum number of not yet -+ * answered SETUP requests per RTSP session (default 8). -+ * With setup_timeout you can specify how long the system waits for -+ * an expected data channel (default 300 seconds). -+ * -+ * 2005-02-13: Harald Welte -+ * - port to 2.6 -+ * - update to recent post-2.6.11 api changes -+ * 2006-09-14: Steven Van Acker -+ * - removed calls to NAT code from conntrack helper: NAT no longer needed to use rtsp-conntrack -+ * 2007-04-18: Michael Guntsche -+ * - Port to new NF API -+ */ -+ -+#include -+#include -+#include -+#include -+#include -+ -+#include -+#include -+#include -+#include -+ -+#define NF_NEED_STRNCASECMP -+#define NF_NEED_STRTOU16 -+#define NF_NEED_STRTOU32 -+#define NF_NEED_NEXTLINE -+#include -+#define NF_NEED_MIME_NEXTLINE -+#include -+ -+#include -+#define MAX_SIMUL_SETUP 8 /* XXX: use max_outstanding */ -+#define INFOP(fmt, args...) printk(KERN_INFO "%s: %s: " fmt, __FILE__, __FUNCTION__ , ## args) -+#if 0 -+#define DEBUGP(fmt, args...) printk(KERN_DEBUG "%s: %s: " fmt, __FILE__, __FUNCTION__ , ## args) -+#else -+#define DEBUGP(fmt, args...) -+#endif -+ -+#define MAX_PORTS 8 -+static int ports[MAX_PORTS]; -+static int num_ports = 0; -+static int max_outstanding = 8; -+static unsigned int setup_timeout = 300; -+ -+MODULE_AUTHOR("Tom Marshall "); -+MODULE_DESCRIPTION("RTSP connection tracking module"); -+MODULE_LICENSE("GPL"); -+module_param_array(ports, int, &num_ports, 0400); -+MODULE_PARM_DESC(ports, "port numbers of RTSP servers"); -+module_param(max_outstanding, int, 0400); -+MODULE_PARM_DESC(max_outstanding, "max number of outstanding SETUP requests per RTSP session"); -+module_param(setup_timeout, int, 0400); -+MODULE_PARM_DESC(setup_timeout, "timeout on for unestablished data channels"); -+ -+static char *rtsp_buffer; -+static DEFINE_SPINLOCK(rtsp_buffer_lock); -+ -+unsigned int (*nf_nat_rtsp_hook)(struct sk_buff *skb, -+ enum ip_conntrack_info ctinfo, -+ unsigned int matchoff, unsigned int matchlen,struct ip_ct_rtsp_expect* prtspexp, -+ struct nf_conntrack_expect *exp); -+void (*nf_nat_rtsp_hook_expectfn)(struct nf_conn *ct, struct nf_conntrack_expect *exp); -+ -+EXPORT_SYMBOL_GPL(nf_nat_rtsp_hook); -+ -+/* -+ * Max mappings we will allow for one RTSP connection (for RTP, the number -+ * of allocated ports is twice this value). Note that SMIL burns a lot of -+ * ports so keep this reasonably high. If this is too low, you will see a -+ * lot of "no free client map entries" messages. -+ */ -+#define MAX_PORT_MAPS 16 -+ -+/*** default port list was here in the masq code: 554, 3030, 4040 ***/ -+ -+#define SKIP_WSPACE(ptr,len,off) while(off < len && isspace(*(ptr+off))) { off++; } -+ -+/* -+ * Parse an RTSP packet. -+ * -+ * Returns zero if parsing failed. -+ * -+ * Parameters: -+ * IN ptcp tcp data pointer -+ * IN tcplen tcp data len -+ * IN/OUT ptcpoff points to current tcp offset -+ * OUT phdrsoff set to offset of rtsp headers -+ * OUT phdrslen set to length of rtsp headers -+ * OUT pcseqoff set to offset of CSeq header -+ * OUT pcseqlen set to length of CSeq header -+ */ -+static int -+rtsp_parse_message(char* ptcp, uint tcplen, uint* ptcpoff, -+ uint* phdrsoff, uint* phdrslen, -+ uint* pcseqoff, uint* pcseqlen, -+ uint* transoff, uint* translen) -+{ -+ uint entitylen = 0; -+ uint lineoff; -+ uint linelen; -+ -+ if (!nf_nextline(ptcp, tcplen, ptcpoff, &lineoff, &linelen)) -+ return 0; -+ -+ *phdrsoff = *ptcpoff; -+ while (nf_mime_nextline(ptcp, tcplen, ptcpoff, &lineoff, &linelen)) { -+ if (linelen == 0) { -+ if (entitylen > 0) -+ *ptcpoff += min(entitylen, tcplen - *ptcpoff); -+ break; -+ } -+ if (lineoff+linelen > tcplen) { -+ INFOP("!! overrun !!\n"); -+ break; -+ } -+ -+ if (nf_strncasecmp(ptcp+lineoff, "CSeq:", 5) == 0) { -+ *pcseqoff = lineoff; -+ *pcseqlen = linelen; -+ } -+ -+ if (nf_strncasecmp(ptcp+lineoff, "Transport:", 10) == 0) { -+ *transoff = lineoff; -+ *translen = linelen; -+ } -+ -+ if (nf_strncasecmp(ptcp+lineoff, "Content-Length:", 15) == 0) { -+ uint off = lineoff+15; -+ SKIP_WSPACE(ptcp+lineoff, linelen, off); -+ nf_strtou32(ptcp+off, &entitylen); -+ } -+ } -+ *phdrslen = (*ptcpoff) - (*phdrsoff); -+ -+ return 1; -+} -+ -+/* -+ * Find lo/hi client ports (if any) in transport header -+ * In: -+ * ptcp, tcplen = packet -+ * tranoff, tranlen = buffer to search -+ * -+ * Out: -+ * pport_lo, pport_hi = lo/hi ports (host endian) -+ * -+ * Returns nonzero if any client ports found -+ * -+ * Note: it is valid (and expected) for the client to request multiple -+ * transports, so we need to parse the entire line. -+ */ -+static int -+rtsp_parse_transport(char* ptran, uint tranlen, -+ struct ip_ct_rtsp_expect* prtspexp) -+{ -+ int rc = 0; -+ uint off = 0; -+ -+ if (tranlen < 10 || !iseol(ptran[tranlen-1]) || -+ nf_strncasecmp(ptran, "Transport:", 10) != 0) { -+ INFOP("sanity check failed\n"); -+ return 0; -+ } -+ -+ DEBUGP("tran='%.*s'\n", (int)tranlen, ptran); -+ off += 10; -+ SKIP_WSPACE(ptran, tranlen, off); -+ -+ /* Transport: tran;field;field=val,tran;field;field=val,... */ -+ while (off < tranlen) { -+ const char* pparamend; -+ uint nextparamoff; -+ -+ pparamend = memchr(ptran+off, ',', tranlen-off); -+ pparamend = (pparamend == NULL) ? ptran+tranlen : pparamend+1; -+ nextparamoff = pparamend-ptran; -+ -+ while (off < nextparamoff) { -+ const char* pfieldend; -+ uint nextfieldoff; -+ -+ pfieldend = memchr(ptran+off, ';', nextparamoff-off); -+ nextfieldoff = (pfieldend == NULL) ? nextparamoff : pfieldend-ptran+1; -+ -+ if (strncmp(ptran+off, "client_port=", 12) == 0) { -+ u_int16_t port; -+ uint numlen; -+ -+ off += 12; -+ numlen = nf_strtou16(ptran+off, &port); -+ off += numlen; -+ if (prtspexp->loport != 0 && prtspexp->loport != port) -+ DEBUGP("multiple ports found, port %hu ignored\n", port); -+ else { -+ DEBUGP("lo port found : %hu\n", port); -+ prtspexp->loport = prtspexp->hiport = port; -+ if (ptran[off] == '-') { -+ off++; -+ numlen = nf_strtou16(ptran+off, &port); -+ off += numlen; -+ prtspexp->pbtype = pb_range; -+ prtspexp->hiport = port; -+ -+ // If we have a range, assume rtp: -+ // loport must be even, hiport must be loport+1 -+ if ((prtspexp->loport & 0x0001) != 0 || -+ prtspexp->hiport != prtspexp->loport+1) { -+ DEBUGP("incorrect range: %hu-%hu, correcting\n", -+ prtspexp->loport, prtspexp->hiport); -+ prtspexp->loport &= 0xfffe; -+ prtspexp->hiport = prtspexp->loport+1; -+ } -+ } else if (ptran[off] == '/') { -+ off++; -+ numlen = nf_strtou16(ptran+off, &port); -+ off += numlen; -+ prtspexp->pbtype = pb_discon; -+ prtspexp->hiport = port; -+ } -+ rc = 1; -+ } -+ } -+ -+ /* -+ * Note we don't look for the destination parameter here. -+ * If we are using NAT, the NAT module will handle it. If not, -+ * and the client is sending packets elsewhere, the expectation -+ * will quietly time out. -+ */ -+ -+ off = nextfieldoff; -+ } -+ -+ off = nextparamoff; -+ } -+ -+ return rc; -+} -+ -+void expected(struct nf_conn *ct, struct nf_conntrack_expect *exp) -+{ -+ if(nf_nat_rtsp_hook_expectfn) { -+ nf_nat_rtsp_hook_expectfn(ct,exp); -+ } -+} -+ -+/*** conntrack functions ***/ -+ -+/* outbound packet: client->server */ -+ -+static inline int -+help_out(struct sk_buff *skb, unsigned char *rb_ptr, unsigned int datalen, -+ struct nf_conn *ct, enum ip_conntrack_info ctinfo) -+{ -+ struct ip_ct_rtsp_expect expinfo; -+ -+ int dir = CTINFO2DIR(ctinfo); /* = IP_CT_DIR_ORIGINAL */ -+ //struct tcphdr* tcph = (void*)iph + iph->ihl * 4; -+ //uint tcplen = pktlen - iph->ihl * 4; -+ char* pdata = rb_ptr; -+ //uint datalen = tcplen - tcph->doff * 4; -+ uint dataoff = 0; -+ int ret = NF_ACCEPT; -+ -+ struct nf_conntrack_expect *exp; -+ -+ __be16 be_loport; -+ -+ memset(&expinfo, 0, sizeof(expinfo)); -+ -+ while (dataoff < datalen) { -+ uint cmdoff = dataoff; -+ uint hdrsoff = 0; -+ uint hdrslen = 0; -+ uint cseqoff = 0; -+ uint cseqlen = 0; -+ uint transoff = 0; -+ uint translen = 0; -+ uint off; -+ -+ if (!rtsp_parse_message(pdata, datalen, &dataoff, -+ &hdrsoff, &hdrslen, -+ &cseqoff, &cseqlen, -+ &transoff, &translen)) -+ break; /* not a valid message */ -+ -+ if (strncmp(pdata+cmdoff, "SETUP ", 6) != 0) -+ continue; /* not a SETUP message */ -+ DEBUGP("found a setup message\n"); -+ -+ off = 0; -+ if(translen) { -+ rtsp_parse_transport(pdata+transoff, translen, &expinfo); -+ } -+ -+ if (expinfo.loport == 0) { -+ DEBUGP("no udp transports found\n"); -+ continue; /* no udp transports found */ -+ } -+ -+ DEBUGP("udp transport found, ports=(%d,%hu,%hu)\n", -+ (int)expinfo.pbtype, expinfo.loport, expinfo.hiport); -+ -+ exp = nf_ct_expect_alloc(ct); -+ if (!exp) { -+ ret = NF_DROP; -+ goto out; -+ } -+ -+ be_loport = htons(expinfo.loport); -+ -+ nf_ct_expect_init(exp, NF_CT_EXPECT_CLASS_DEFAULT, -+ ct->tuplehash[!dir].tuple.src.l3num, -+ &ct->tuplehash[!dir].tuple.src.u3, &ct->tuplehash[!dir].tuple.dst.u3, -+ IPPROTO_UDP, NULL, &be_loport); -+ -+ exp->master = ct; -+ -+ exp->expectfn = expected; -+ exp->flags = 0; -+ -+ if (expinfo.pbtype == pb_range) { -+ DEBUGP("Changing expectation mask to handle multiple ports\n"); -+ exp->mask.src.u.udp.port = 0xfffe; -+ } -+ -+ DEBUGP("expect_related %u.%u.%u.%u:%u-%u.%u.%u.%u:%u\n", -+ NIPQUAD(exp->tuple.src.u3.ip), -+ ntohs(exp->tuple.src.u.udp.port), -+ NIPQUAD(exp->tuple.dst.u3.ip), -+ ntohs(exp->tuple.dst.u.udp.port)); -+ -+ if (nf_nat_rtsp_hook) -+ /* pass the request off to the nat helper */ -+ ret = nf_nat_rtsp_hook(skb, ctinfo, hdrsoff, hdrslen, &expinfo, exp); -+ else if (nf_ct_expect_related(exp) != 0) { -+ INFOP("nf_ct_expect_related failed\n"); -+ ret = NF_DROP; -+ } -+ nf_ct_expect_put(exp); -+ goto out; -+ } -+out: -+ -+ return ret; -+} -+ -+ -+static inline int -+help_in(struct sk_buff *skb, size_t pktlen, -+ struct nf_conn* ct, enum ip_conntrack_info ctinfo) -+{ -+ return NF_ACCEPT; -+} -+ -+static int help(struct sk_buff *skb, unsigned int protoff, -+ struct nf_conn *ct, enum ip_conntrack_info ctinfo) -+{ -+ struct tcphdr _tcph, *th; -+ unsigned int dataoff, datalen; -+ char *rb_ptr; -+ int ret = NF_DROP; -+ -+ /* Until there's been traffic both ways, don't look in packets. */ -+ if (ctinfo != IP_CT_ESTABLISHED && -+ ctinfo != IP_CT_ESTABLISHED + IP_CT_IS_REPLY) { -+ DEBUGP("conntrackinfo = %u\n", ctinfo); -+ return NF_ACCEPT; -+ } -+ -+ /* Not whole TCP header? */ -+ th = skb_header_pointer(skb, protoff, sizeof(_tcph), &_tcph); -+ -+ if (!th) -+ return NF_ACCEPT; -+ -+ /* No data ? */ -+ dataoff = protoff + th->doff*4; -+ datalen = skb->len - dataoff; -+ if (dataoff >= skb->len) -+ return NF_ACCEPT; -+ -+ spin_lock_bh(&rtsp_buffer_lock); -+ rb_ptr = skb_header_pointer(skb, dataoff, -+ skb->len - dataoff, rtsp_buffer); -+ BUG_ON(rb_ptr == NULL); -+ -+#if 0 -+ /* Checksum invalid? Ignore. */ -+ /* FIXME: Source route IP option packets --RR */ -+ if (tcp_v4_check(tcph, tcplen, iph->saddr, iph->daddr, -+ csum_partial((char*)tcph, tcplen, 0))) -+ { -+ DEBUGP("bad csum: %p %u %u.%u.%u.%u %u.%u.%u.%u\n", -+ tcph, tcplen, NIPQUAD(iph->saddr), NIPQUAD(iph->daddr)); -+ return NF_ACCEPT; -+ } -+#endif -+ -+ switch (CTINFO2DIR(ctinfo)) { -+ case IP_CT_DIR_ORIGINAL: -+ ret = help_out(skb, rb_ptr, datalen, ct, ctinfo); -+ break; -+ case IP_CT_DIR_REPLY: -+ DEBUGP("IP_CT_DIR_REPLY\n"); -+ /* inbound packet: server->client */ -+ ret = NF_ACCEPT; -+ break; -+ } -+ -+ spin_unlock_bh(&rtsp_buffer_lock); -+ -+ return ret; -+} -+ -+static struct nf_conntrack_helper rtsp_helpers[MAX_PORTS]; -+static char rtsp_names[MAX_PORTS][10]; -+static struct nf_conntrack_expect_policy rtsp_expect_policy; -+ -+/* This function is intentionally _NOT_ defined as __exit */ -+static void -+fini(void) -+{ -+ int i; -+ for (i = 0; i < num_ports; i++) { -+ DEBUGP("unregistering port %d\n", ports[i]); -+ nf_conntrack_helper_unregister(&rtsp_helpers[i]); -+ } -+ kfree(rtsp_buffer); -+} -+ -+static int __init -+init(void) -+{ -+ int i, ret; -+ struct nf_conntrack_helper *hlpr; -+ char *tmpname; -+ -+ printk("nf_conntrack_rtsp v" IP_NF_RTSP_VERSION " loading\n"); -+ -+ if (max_outstanding < 1) { -+ printk("nf_conntrack_rtsp: max_outstanding must be a positive integer\n"); -+ return -EBUSY; -+ } -+ if (setup_timeout < 0) { -+ printk("nf_conntrack_rtsp: setup_timeout must be a positive integer\n"); -+ return -EBUSY; -+ } -+ -+ rtsp_expect_policy.max_expected = max_outstanding; -+ rtsp_expect_policy.timeout = setup_timeout; -+ -+ rtsp_buffer = kmalloc(65536, GFP_KERNEL); -+ if (!rtsp_buffer) -+ return -ENOMEM; -+ -+ /* If no port given, default to standard rtsp port */ -+ if (ports[0] == 0) { -+ ports[0] = RTSP_PORT; -+ } -+ -+ for (i = 0; (i < MAX_PORTS) && ports[i]; i++) { -+ hlpr = &rtsp_helpers[i]; -+ memset(hlpr, 0, sizeof(struct nf_conntrack_helper)); -+ hlpr->tuple.src.u.tcp.port = htons(ports[i]); -+ hlpr->tuple.dst.protonum = IPPROTO_TCP; -+ hlpr->expect_policy = &rtsp_expect_policy; -+ hlpr->me = THIS_MODULE; -+ hlpr->help = help; -+ -+ tmpname = &rtsp_names[i][0]; -+ if (ports[i] == RTSP_PORT) { -+ sprintf(tmpname, "rtsp"); -+ } else { -+ sprintf(tmpname, "rtsp-%d", i); -+ } -+ hlpr->name = tmpname; -+ -+ DEBUGP("port #%d: %d\n", i, ports[i]); -+ -+ ret = nf_conntrack_helper_register(hlpr); -+ -+ if (ret) { -+ printk("nf_conntrack_rtsp: ERROR registering port %d\n", ports[i]); -+ fini(); -+ return -EBUSY; -+ } -+ num_ports++; -+ } -+ return 0; -+} -+ -+module_init(init); -+module_exit(fini); -+ -+EXPORT_SYMBOL(nf_nat_rtsp_hook_expectfn); -+ ---- /dev/null -+++ b/net/ipv4/netfilter/nf_nat_rtsp.c -@@ -0,0 +1,496 @@ -+/* -+ * RTSP extension for TCP NAT alteration -+ * (C) 2003 by Tom Marshall -+ * based on ip_nat_irc.c -+ * -+ * This program is free software; you can redistribute it and/or -+ * modify it under the terms of the GNU General Public License -+ * as published by the Free Software Foundation; either version -+ * 2 of the License, or (at your option) any later version. -+ * -+ * Module load syntax: -+ * insmod nf_nat_rtsp.o ports=port1,port2,...port -+ * stunaddr=
-+ * destaction=[auto|strip|none] -+ * -+ * If no ports are specified, the default will be port 554 only. -+ * -+ * stunaddr specifies the address used to detect that a client is using STUN. -+ * If this address is seen in the destination parameter, it is assumed that -+ * the client has already punched a UDP hole in the firewall, so we don't -+ * mangle the client_port. If none is specified, it is autodetected. It -+ * only needs to be set if you have multiple levels of NAT. It should be -+ * set to the external address that the STUN clients detect. Note that in -+ * this case, it will not be possible for clients to use UDP with servers -+ * between the NATs. -+ * -+ * If no destaction is specified, auto is used. -+ * destaction=auto: strip destination parameter if it is not stunaddr. -+ * destaction=strip: always strip destination parameter (not recommended). -+ * destaction=none: do not touch destination parameter (not recommended). -+ */ -+ -+#include -+#include -+#include -+#include -+#include -+#include -+ -+#include -+#include -+#define NF_NEED_STRNCASECMP -+#define NF_NEED_STRTOU16 -+#include -+#define NF_NEED_MIME_NEXTLINE -+#include -+ -+#define INFOP(fmt, args...) printk(KERN_INFO "%s: %s: " fmt, __FILE__, __FUNCTION__ , ## args) -+#if 0 -+#define DEBUGP(fmt, args...) printk(KERN_DEBUG "%s: %s: " fmt, __FILE__, __FUNCTION__ , ## args) -+#else -+#define DEBUGP(fmt, args...) -+#endif -+ -+#define MAX_PORTS 8 -+#define DSTACT_AUTO 0 -+#define DSTACT_STRIP 1 -+#define DSTACT_NONE 2 -+ -+static char* stunaddr = NULL; -+static char* destaction = NULL; -+ -+static u_int32_t extip = 0; -+static int dstact = 0; -+ -+MODULE_AUTHOR("Tom Marshall "); -+MODULE_DESCRIPTION("RTSP network address translation module"); -+MODULE_LICENSE("GPL"); -+module_param(stunaddr, charp, 0644); -+MODULE_PARM_DESC(stunaddr, "Address for detecting STUN"); -+module_param(destaction, charp, 0644); -+MODULE_PARM_DESC(destaction, "Action for destination parameter (auto/strip/none)"); -+ -+#define SKIP_WSPACE(ptr,len,off) while(off < len && isspace(*(ptr+off))) { off++; } -+ -+/*** helper functions ***/ -+ -+static void -+get_skb_tcpdata(struct sk_buff* skb, char** pptcpdata, uint* ptcpdatalen) -+{ -+ struct iphdr* iph = ip_hdr(skb); -+ struct tcphdr* tcph = (void *)iph + ip_hdrlen(skb); -+ -+ *pptcpdata = (char*)tcph + tcph->doff*4; -+ *ptcpdatalen = ((char*)skb_transport_header(skb) + skb->len) - *pptcpdata; -+} -+ -+/*** nat functions ***/ -+ -+/* -+ * Mangle the "Transport:" header: -+ * - Replace all occurences of "client_port=" -+ * - Handle destination parameter -+ * -+ * In: -+ * ct, ctinfo = conntrack context -+ * skb = packet -+ * tranoff = Transport header offset from TCP data -+ * tranlen = Transport header length (incl. CRLF) -+ * rport_lo = replacement low port (host endian) -+ * rport_hi = replacement high port (host endian) -+ * -+ * Returns packet size difference. -+ * -+ * Assumes that a complete transport header is present, ending with CR or LF -+ */ -+static int -+rtsp_mangle_tran(enum ip_conntrack_info ctinfo, -+ struct nf_conntrack_expect* exp, -+ struct ip_ct_rtsp_expect* prtspexp, -+ struct sk_buff* skb, uint tranoff, uint tranlen) -+{ -+ char* ptcp; -+ uint tcplen; -+ char* ptran; -+ char rbuf1[16]; /* Replacement buffer (one port) */ -+ uint rbuf1len; /* Replacement len (one port) */ -+ char rbufa[16]; /* Replacement buffer (all ports) */ -+ uint rbufalen; /* Replacement len (all ports) */ -+ u_int32_t newip; -+ u_int16_t loport, hiport; -+ uint off = 0; -+ uint diff; /* Number of bytes we removed */ -+ -+ struct nf_conn *ct = exp->master; -+ struct nf_conntrack_tuple *t; -+ -+ char szextaddr[15+1]; -+ uint extaddrlen; -+ int is_stun; -+ -+ get_skb_tcpdata(skb, &ptcp, &tcplen); -+ ptran = ptcp+tranoff; -+ -+ if (tranoff+tranlen > tcplen || tcplen-tranoff < tranlen || -+ tranlen < 10 || !iseol(ptran[tranlen-1]) || -+ nf_strncasecmp(ptran, "Transport:", 10) != 0) -+ { -+ INFOP("sanity check failed\n"); -+ return 0; -+ } -+ off += 10; -+ SKIP_WSPACE(ptcp+tranoff, tranlen, off); -+ -+ newip = ct->tuplehash[IP_CT_DIR_REPLY].tuple.dst.u3.ip; -+ t = &exp->tuple; -+ t->dst.u3.ip = newip; -+ -+ extaddrlen = extip ? sprintf(szextaddr, "%u.%u.%u.%u", &extip) -+ : sprintf(szextaddr, "%u.%u.%u.%u", &newip); -+ DEBUGP("stunaddr=%s (%s)\n", szextaddr, (extip?"forced":"auto")); -+ -+ rbuf1len = rbufalen = 0; -+ switch (prtspexp->pbtype) -+ { -+ case pb_single: -+ for (loport = prtspexp->loport; loport != 0; loport++) /* XXX: improper wrap? */ -+ { -+ t->dst.u.udp.port = htons(loport); -+ if (nf_ct_expect_related(exp) == 0) -+ { -+ DEBUGP("using port %hu\n", loport); -+ break; -+ } -+ } -+ if (loport != 0) -+ { -+ rbuf1len = sprintf(rbuf1, "%hu", loport); -+ rbufalen = sprintf(rbufa, "%hu", loport); -+ } -+ break; -+ case pb_range: -+ for (loport = prtspexp->loport; loport != 0; loport += 2) /* XXX: improper wrap? */ -+ { -+ t->dst.u.udp.port = htons(loport); -+ if (nf_ct_expect_related(exp) == 0) -+ { -+ hiport = loport + ~exp->mask.src.u.udp.port; -+ DEBUGP("using ports %hu-%hu\n", loport, hiport); -+ break; -+ } -+ } -+ if (loport != 0) -+ { -+ rbuf1len = sprintf(rbuf1, "%hu", loport); -+ rbufalen = sprintf(rbufa, "%hu-%hu", loport, loport+1); -+ } -+ break; -+ case pb_discon: -+ for (loport = prtspexp->loport; loport != 0; loport++) /* XXX: improper wrap? */ -+ { -+ t->dst.u.udp.port = htons(loport); -+ if (nf_ct_expect_related(exp) == 0) -+ { -+ DEBUGP("using port %hu (1 of 2)\n", loport); -+ break; -+ } -+ } -+ for (hiport = prtspexp->hiport; hiport != 0; hiport++) /* XXX: improper wrap? */ -+ { -+ t->dst.u.udp.port = htons(hiport); -+ if (nf_ct_expect_related(exp) == 0) -+ { -+ DEBUGP("using port %hu (2 of 2)\n", hiport); -+ break; -+ } -+ } -+ if (loport != 0 && hiport != 0) -+ { -+ rbuf1len = sprintf(rbuf1, "%hu", loport); -+ if (hiport == loport+1) -+ { -+ rbufalen = sprintf(rbufa, "%hu-%hu", loport, hiport); -+ } -+ else -+ { -+ rbufalen = sprintf(rbufa, "%hu/%hu", loport, hiport); -+ } -+ } -+ break; -+ } -+ -+ if (rbuf1len == 0) -+ { -+ return 0; /* cannot get replacement port(s) */ -+ } -+ -+ /* Transport: tran;field;field=val,tran;field;field=val,... */ -+ while (off < tranlen) -+ { -+ uint saveoff; -+ const char* pparamend; -+ uint nextparamoff; -+ -+ pparamend = memchr(ptran+off, ',', tranlen-off); -+ pparamend = (pparamend == NULL) ? ptran+tranlen : pparamend+1; -+ nextparamoff = pparamend-ptcp; -+ -+ /* -+ * We pass over each param twice. On the first pass, we look for a -+ * destination= field. It is handled by the security policy. If it -+ * is present, allowed, and equal to our external address, we assume -+ * that STUN is being used and we leave the client_port= field alone. -+ */ -+ is_stun = 0; -+ saveoff = off; -+ while (off < nextparamoff) -+ { -+ const char* pfieldend; -+ uint nextfieldoff; -+ -+ pfieldend = memchr(ptran+off, ';', nextparamoff-off); -+ nextfieldoff = (pfieldend == NULL) ? nextparamoff : pfieldend-ptran+1; -+ -+ if (dstact != DSTACT_NONE && strncmp(ptran+off, "destination=", 12) == 0) -+ { -+ if (strncmp(ptran+off+12, szextaddr, extaddrlen) == 0) -+ { -+ is_stun = 1; -+ } -+ if (dstact == DSTACT_STRIP || (dstact == DSTACT_AUTO && !is_stun)) -+ { -+ diff = nextfieldoff-off; -+ if (!nf_nat_mangle_tcp_packet(skb, ct, ctinfo, -+ off, diff, NULL, 0)) -+ { -+ /* mangle failed, all we can do is bail */ -+ nf_ct_unexpect_related(exp); -+ return 0; -+ } -+ get_skb_tcpdata(skb, &ptcp, &tcplen); -+ ptran = ptcp+tranoff; -+ tranlen -= diff; -+ nextparamoff -= diff; -+ nextfieldoff -= diff; -+ } -+ } -+ -+ off = nextfieldoff; -+ } -+ if (is_stun) -+ { -+ continue; -+ } -+ off = saveoff; -+ while (off < nextparamoff) -+ { -+ const char* pfieldend; -+ uint nextfieldoff; -+ -+ pfieldend = memchr(ptran+off, ';', nextparamoff-off); -+ nextfieldoff = (pfieldend == NULL) ? nextparamoff : pfieldend-ptran+1; -+ -+ if (strncmp(ptran+off, "client_port=", 12) == 0) -+ { -+ u_int16_t port; -+ uint numlen; -+ uint origoff; -+ uint origlen; -+ char* rbuf = rbuf1; -+ uint rbuflen = rbuf1len; -+ -+ off += 12; -+ origoff = (ptran-ptcp)+off; -+ origlen = 0; -+ numlen = nf_strtou16(ptran+off, &port); -+ off += numlen; -+ origlen += numlen; -+ if (port != prtspexp->loport) -+ { -+ DEBUGP("multiple ports found, port %hu ignored\n", port); -+ } -+ else -+ { -+ if (ptran[off] == '-' || ptran[off] == '/') -+ { -+ off++; -+ origlen++; -+ numlen = nf_strtou16(ptran+off, &port); -+ off += numlen; -+ origlen += numlen; -+ rbuf = rbufa; -+ rbuflen = rbufalen; -+ } -+ -+ /* -+ * note we cannot just memcpy() if the sizes are the same. -+ * the mangle function does skb resizing, checks for a -+ * cloned skb, and updates the checksums. -+ * -+ * parameter 4 below is offset from start of tcp data. -+ */ -+ diff = origlen-rbuflen; -+ if (!nf_nat_mangle_tcp_packet(skb, ct, ctinfo, -+ origoff, origlen, rbuf, rbuflen)) -+ { -+ /* mangle failed, all we can do is bail */ -+ nf_ct_unexpect_related(exp); -+ return 0; -+ } -+ get_skb_tcpdata(skb, &ptcp, &tcplen); -+ ptran = ptcp+tranoff; -+ tranlen -= diff; -+ nextparamoff -= diff; -+ nextfieldoff -= diff; -+ } -+ } -+ -+ off = nextfieldoff; -+ } -+ -+ off = nextparamoff; -+ } -+ -+ return 1; -+} -+ -+static uint -+help_out(struct sk_buff *skb, enum ip_conntrack_info ctinfo, -+ unsigned int matchoff, unsigned int matchlen, struct ip_ct_rtsp_expect* prtspexp, -+ struct nf_conntrack_expect* exp) -+{ -+ char* ptcp; -+ uint tcplen; -+ uint hdrsoff; -+ uint hdrslen; -+ uint lineoff; -+ uint linelen; -+ uint off; -+ -+ //struct iphdr* iph = (struct iphdr*)skb->nh.iph; -+ //struct tcphdr* tcph = (struct tcphdr*)((void*)iph + iph->ihl*4); -+ -+ get_skb_tcpdata(skb, &ptcp, &tcplen); -+ hdrsoff = matchoff;//exp->seq - ntohl(tcph->seq); -+ hdrslen = matchlen; -+ off = hdrsoff; -+ DEBUGP("NAT rtsp help_out\n"); -+ -+ while (nf_mime_nextline(ptcp, hdrsoff+hdrslen, &off, &lineoff, &linelen)) -+ { -+ if (linelen == 0) -+ { -+ break; -+ } -+ if (off > hdrsoff+hdrslen) -+ { -+ INFOP("!! overrun !!"); -+ break; -+ } -+ DEBUGP("hdr: len=%u, %.*s", linelen, (int)linelen, ptcp+lineoff); -+ -+ if (nf_strncasecmp(ptcp+lineoff, "Transport:", 10) == 0) -+ { -+ uint oldtcplen = tcplen; -+ DEBUGP("hdr: Transport\n"); -+ if (!rtsp_mangle_tran(ctinfo, exp, prtspexp, skb, lineoff, linelen)) -+ { -+ DEBUGP("hdr: Transport mangle failed"); -+ break; -+ } -+ get_skb_tcpdata(skb, &ptcp, &tcplen); -+ hdrslen -= (oldtcplen-tcplen); -+ off -= (oldtcplen-tcplen); -+ lineoff -= (oldtcplen-tcplen); -+ linelen -= (oldtcplen-tcplen); -+ DEBUGP("rep: len=%u, %.*s", linelen, (int)linelen, ptcp+lineoff); -+ } -+ } -+ -+ return NF_ACCEPT; -+} -+ -+static unsigned int -+help(struct sk_buff *skb, enum ip_conntrack_info ctinfo, -+ unsigned int matchoff, unsigned int matchlen, struct ip_ct_rtsp_expect* prtspexp, -+ struct nf_conntrack_expect* exp) -+{ -+ int dir = CTINFO2DIR(ctinfo); -+ int rc = NF_ACCEPT; -+ -+ switch (dir) -+ { -+ case IP_CT_DIR_ORIGINAL: -+ rc = help_out(skb, ctinfo, matchoff, matchlen, prtspexp, exp); -+ break; -+ case IP_CT_DIR_REPLY: -+ DEBUGP("unmangle ! %u\n", ctinfo); -+ /* XXX: unmangle */ -+ rc = NF_ACCEPT; -+ break; -+ } -+ //UNLOCK_BH(&ip_rtsp_lock); -+ -+ return rc; -+} -+ -+static void expected(struct nf_conn* ct, struct nf_conntrack_expect *exp) -+{ -+ struct nf_nat_multi_range_compat mr; -+ u_int32_t newdstip, newsrcip, newip; -+ -+ struct nf_conn *master = ct->master; -+ -+ newdstip = master->tuplehash[IP_CT_DIR_ORIGINAL].tuple.src.u3.ip; -+ newsrcip = ct->tuplehash[IP_CT_DIR_ORIGINAL].tuple.src.u3.ip; -+ //FIXME (how to port that ?) -+ //code from 2.4 : newip = (HOOK2MANIP(hooknum) == IP_NAT_MANIP_SRC) ? newsrcip : newdstip; -+ newip = newdstip; -+ -+ DEBUGP("newsrcip=%u.%u.%u.%u, newdstip=%u.%u.%u.%u, newip=%u.%u.%u.%u\n", -+ &newsrcip, &newdstip, &newip); -+ -+ mr.rangesize = 1; -+ // We don't want to manip the per-protocol, just the IPs. -+ mr.range[0].flags = IP_NAT_RANGE_MAP_IPS; -+ mr.range[0].min_ip = mr.range[0].max_ip = newip; -+ -+ nf_nat_setup_info(ct, &mr.range[0], IP_NAT_MANIP_DST); -+} -+ -+ -+static void __exit fini(void) -+{ -+ nf_nat_rtsp_hook = NULL; -+ nf_nat_rtsp_hook_expectfn = NULL; -+ synchronize_net(); -+} -+ -+static int __init init(void) -+{ -+ printk("nf_nat_rtsp v" IP_NF_RTSP_VERSION " loading\n"); -+ -+ BUG_ON(nf_nat_rtsp_hook); -+ nf_nat_rtsp_hook = help; -+ nf_nat_rtsp_hook_expectfn = &expected; -+ -+ if (stunaddr != NULL) -+ extip = in_aton(stunaddr); -+ -+ if (destaction != NULL) { -+ if (strcmp(destaction, "auto") == 0) -+ dstact = DSTACT_AUTO; -+ -+ if (strcmp(destaction, "strip") == 0) -+ dstact = DSTACT_STRIP; -+ -+ if (strcmp(destaction, "none") == 0) -+ dstact = DSTACT_NONE; -+ } -+ -+ return 0; -+} -+ -+module_init(init); -+module_exit(fini); diff --git a/target/linux/generic/patches-2.6.39/200-fix_localversion.patch b/target/linux/generic/patches-2.6.39/200-fix_localversion.patch new file mode 100644 index 00000000000..0d1bae8d455 --- /dev/null +++ b/target/linux/generic/patches-2.6.39/200-fix_localversion.patch @@ -0,0 +1,11 @@ +--- a/scripts/setlocalversion ++++ b/scripts/setlocalversion +@@ -168,7 +168,7 @@ else + # annotated or signed tagged state (as git describe only + # looks at signed or annotated tags - git tag -a/-s) and + # LOCALVERSION= is not specified +- if test "${LOCALVERSION+set}" != "set"; then ++ if test "${CONFIG_LOCALVERSION+set}" != "set"; then + scm=$(scm_version --short) + res="$res${scm:++}" + fi diff --git a/target/linux/generic/patches-2.6.39/200-sched_esfq.patch b/target/linux/generic/patches-2.6.39/200-sched_esfq.patch deleted file mode 100644 index 868f97b3396..00000000000 --- a/target/linux/generic/patches-2.6.39/200-sched_esfq.patch +++ /dev/null @@ -1,795 +0,0 @@ ---- a/include/linux/pkt_sched.h -+++ b/include/linux/pkt_sched.h -@@ -173,8 +173,37 @@ struct tc_sfq_xstats { - * - * The only reason for this is efficiency, it is possible - * to change these parameters in compile time. -+ * -+ * If you need to play with these values, use esfq instead. - */ - -+/* ESFQ section */ -+ -+enum -+{ -+ /* traditional */ -+ TCA_SFQ_HASH_CLASSIC, -+ TCA_SFQ_HASH_DST, -+ TCA_SFQ_HASH_SRC, -+ TCA_SFQ_HASH_FWMARK, -+ /* conntrack */ -+ TCA_SFQ_HASH_CTORIGDST, -+ TCA_SFQ_HASH_CTORIGSRC, -+ TCA_SFQ_HASH_CTREPLDST, -+ TCA_SFQ_HASH_CTREPLSRC, -+ TCA_SFQ_HASH_CTNATCHG, -+}; -+ -+struct tc_esfq_qopt -+{ -+ unsigned quantum; /* Bytes per round allocated to flow */ -+ int perturb_period; /* Period of hash perturbation */ -+ __u32 limit; /* Maximal packets in queue */ -+ unsigned divisor; /* Hash divisor */ -+ unsigned flows; /* Maximal number of flows */ -+ unsigned hash_kind; /* Hash function to use for flow identification */ -+}; -+ - /* RED section */ - - enum { ---- a/net/sched/Kconfig -+++ b/net/sched/Kconfig -@@ -148,6 +148,37 @@ config NET_SCH_SFQ - To compile this code as a module, choose M here: the - module will be called sch_sfq. - -+config NET_SCH_ESFQ -+ tristate "Enhanced Stochastic Fairness Queueing (ESFQ)" -+ ---help--- -+ Say Y here if you want to use the Enhanced Stochastic Fairness -+ Queueing (ESFQ) packet scheduling algorithm for some of your network -+ devices or as a leaf discipline for a classful qdisc such as HTB or -+ CBQ (see the top of for details and -+ references to the SFQ algorithm). -+ -+ This is an enchanced SFQ version which allows you to control some -+ hardcoded values in the SFQ scheduler. -+ -+ ESFQ also adds control of the hash function used to identify packet -+ flows. The original SFQ discipline hashes by connection; ESFQ add -+ several other hashing methods, such as by src IP or by dst IP, which -+ can be more fair to users in some networking situations. -+ -+ To compile this code as a module, choose M here: the -+ module will be called sch_esfq. -+ -+config NET_SCH_ESFQ_NFCT -+ bool "Connection Tracking Hash Types" -+ depends on NET_SCH_ESFQ && NF_CONNTRACK -+ ---help--- -+ Say Y here to enable support for hashing based on netfilter connection -+ tracking information. This is useful for a router that is also using -+ NAT to connect privately-addressed hosts to the Internet. If you want -+ to provide fair distribution of upstream bandwidth, ESFQ must use -+ connection tracking information, since all outgoing packets will share -+ the same source address. -+ - config NET_SCH_TEQL - tristate "True Link Equalizer (TEQL)" - ---help--- ---- a/net/sched/Makefile -+++ b/net/sched/Makefile -@@ -26,6 +26,7 @@ obj-$(CONFIG_NET_SCH_INGRESS) += sch_ing - obj-$(CONFIG_NET_SCH_DSMARK) += sch_dsmark.o - obj-$(CONFIG_NET_SCH_SFB) += sch_sfb.o - obj-$(CONFIG_NET_SCH_SFQ) += sch_sfq.o -+obj-$(CONFIG_NET_SCH_ESFQ) += sch_esfq.o - obj-$(CONFIG_NET_SCH_TBF) += sch_tbf.o - obj-$(CONFIG_NET_SCH_TEQL) += sch_teql.o - obj-$(CONFIG_NET_SCH_PRIO) += sch_prio.o ---- /dev/null -+++ b/net/sched/sch_esfq.c -@@ -0,0 +1,702 @@ -+/* -+ * net/sched/sch_esfq.c Extended Stochastic Fairness Queueing discipline. -+ * -+ * This program is free software; you can redistribute it and/or -+ * modify it under the terms of the GNU General Public License -+ * as published by the Free Software Foundation; either version -+ * 2 of the License, or (at your option) any later version. -+ * -+ * Authors: Alexey Kuznetsov, -+ * -+ * Changes: Alexander Atanasov, -+ * Added dynamic depth,limit,divisor,hash_kind options. -+ * Added dst and src hashes. -+ * -+ * Alexander Clouter, -+ * Ported ESFQ to Linux 2.6. -+ * -+ * Corey Hickey, -+ * Maintenance of the Linux 2.6 port. -+ * Added fwmark hash (thanks to Robert Kurjata). -+ * Added usage of jhash. -+ * Added conntrack support. -+ * Added ctnatchg hash (thanks to Ben Pfountz). -+ */ -+ -+#include -+#include -+#include -+#include -+#include -+#include -+#include -+#include -+#include -+#include -+#include -+#include -+#include -+#include -+#include -+#include -+#include -+#include -+#include -+#include -+#include -+#include -+#include -+#include -+#include -+#include -+#include -+#include -+#ifdef CONFIG_NET_SCH_ESFQ_NFCT -+#include -+#endif -+ -+/* Stochastic Fairness Queuing algorithm. -+ For more comments look at sch_sfq.c. -+ The difference is that you can change limit, depth, -+ hash table size and choose alternate hash types. -+ -+ classic: same as in sch_sfq.c -+ dst: destination IP address -+ src: source IP address -+ fwmark: netfilter mark value -+ ctorigdst: original destination IP address -+ ctorigsrc: original source IP address -+ ctrepldst: reply destination IP address -+ ctreplsrc: reply source IP -+ -+*/ -+ -+#define ESFQ_HEAD 0 -+#define ESFQ_TAIL 1 -+ -+/* This type should contain at least SFQ_DEPTH*2 values */ -+typedef unsigned int esfq_index; -+ -+struct esfq_head -+{ -+ esfq_index next; -+ esfq_index prev; -+}; -+ -+struct esfq_sched_data -+{ -+/* Parameters */ -+ int perturb_period; -+ unsigned quantum; /* Allotment per round: MUST BE >= MTU */ -+ int limit; -+ unsigned depth; -+ unsigned hash_divisor; -+ unsigned hash_kind; -+/* Variables */ -+ struct timer_list perturb_timer; -+ int perturbation; -+ esfq_index tail; /* Index of current slot in round */ -+ esfq_index max_depth; /* Maximal depth */ -+ -+ esfq_index *ht; /* Hash table */ -+ esfq_index *next; /* Active slots link */ -+ short *allot; /* Current allotment per slot */ -+ unsigned short *hash; /* Hash value indexed by slots */ -+ struct sk_buff_head *qs; /* Slot queue */ -+ struct esfq_head *dep; /* Linked list of slots, indexed by depth */ -+}; -+ -+/* This contains the info we will hash. */ -+struct esfq_packet_info -+{ -+ u32 proto; /* protocol or port */ -+ u32 src; /* source from packet header */ -+ u32 dst; /* destination from packet header */ -+ u32 ctorigsrc; /* original source from conntrack */ -+ u32 ctorigdst; /* original destination from conntrack */ -+ u32 ctreplsrc; /* reply source from conntrack */ -+ u32 ctrepldst; /* reply destination from conntrack */ -+ u32 mark; /* netfilter mark (fwmark) */ -+}; -+ -+static __inline__ unsigned esfq_jhash_1word(struct esfq_sched_data *q,u32 a) -+{ -+ return jhash_1word(a, q->perturbation) & (q->hash_divisor-1); -+} -+ -+static __inline__ unsigned esfq_jhash_2words(struct esfq_sched_data *q, u32 a, u32 b) -+{ -+ return jhash_2words(a, b, q->perturbation) & (q->hash_divisor-1); -+} -+ -+static __inline__ unsigned esfq_jhash_3words(struct esfq_sched_data *q, u32 a, u32 b, u32 c) -+{ -+ return jhash_3words(a, b, c, q->perturbation) & (q->hash_divisor-1); -+} -+ -+static unsigned esfq_hash(struct esfq_sched_data *q, struct sk_buff *skb) -+{ -+ struct esfq_packet_info info; -+#ifdef CONFIG_NET_SCH_ESFQ_NFCT -+ enum ip_conntrack_info ctinfo; -+ struct nf_conn *ct = nf_ct_get(skb, &ctinfo); -+#endif -+ -+ switch (skb->protocol) { -+ case __constant_htons(ETH_P_IP): -+ { -+ struct iphdr *iph = ip_hdr(skb); -+ info.dst = iph->daddr; -+ info.src = iph->saddr; -+ if (!(iph->frag_off&htons(IP_MF|IP_OFFSET)) && -+ (iph->protocol == IPPROTO_TCP || -+ iph->protocol == IPPROTO_UDP || -+ iph->protocol == IPPROTO_SCTP || -+ iph->protocol == IPPROTO_DCCP || -+ iph->protocol == IPPROTO_ESP)) -+ info.proto = *(((u32*)iph) + iph->ihl); -+ else -+ info.proto = iph->protocol; -+ break; -+ } -+ case __constant_htons(ETH_P_IPV6): -+ { -+ struct ipv6hdr *iph = ipv6_hdr(skb); -+ /* Hash ipv6 addresses into a u32. This isn't ideal, -+ * but the code is simple. */ -+ info.dst = jhash2(iph->daddr.s6_addr32, 4, q->perturbation); -+ info.src = jhash2(iph->saddr.s6_addr32, 4, q->perturbation); -+ if (iph->nexthdr == IPPROTO_TCP || -+ iph->nexthdr == IPPROTO_UDP || -+ iph->nexthdr == IPPROTO_SCTP || -+ iph->nexthdr == IPPROTO_DCCP || -+ iph->nexthdr == IPPROTO_ESP) -+ info.proto = *(u32*)&iph[1]; -+ else -+ info.proto = iph->nexthdr; -+ break; -+ } -+ default: -+ info.dst = (u32)(unsigned long)skb_dst(skb); -+ info.src = (u32)(unsigned long)skb->sk; -+ info.proto = skb->protocol; -+ } -+ -+ info.mark = skb->mark; -+ -+#ifdef CONFIG_NET_SCH_ESFQ_NFCT -+ /* defaults if there is no conntrack info */ -+ info.ctorigsrc = info.src; -+ info.ctorigdst = info.dst; -+ info.ctreplsrc = info.dst; -+ info.ctrepldst = info.src; -+ /* collect conntrack info */ -+ if (ct && ct != &nf_conntrack_untracked) { -+ if (skb->protocol == __constant_htons(ETH_P_IP)) { -+ info.ctorigsrc = ct->tuplehash[IP_CT_DIR_ORIGINAL].tuple.src.u3.ip; -+ info.ctorigdst = ct->tuplehash[IP_CT_DIR_ORIGINAL].tuple.dst.u3.ip; -+ info.ctreplsrc = ct->tuplehash[IP_CT_DIR_REPLY].tuple.src.u3.ip; -+ info.ctrepldst = ct->tuplehash[IP_CT_DIR_REPLY].tuple.dst.u3.ip; -+ } -+ else if (skb->protocol == __constant_htons(ETH_P_IPV6)) { -+ /* Again, hash ipv6 addresses into a single u32. */ -+ info.ctorigsrc = jhash2(ct->tuplehash[IP_CT_DIR_ORIGINAL].tuple.src.u3.ip6, 4, q->perturbation); -+ info.ctorigdst = jhash2(ct->tuplehash[IP_CT_DIR_ORIGINAL].tuple.dst.u3.ip6, 4, q->perturbation); -+ info.ctreplsrc = jhash2(ct->tuplehash[IP_CT_DIR_REPLY].tuple.src.u3.ip6, 4, q->perturbation); -+ info.ctrepldst = jhash2(ct->tuplehash[IP_CT_DIR_REPLY].tuple.dst.u3.ip6, 4, q->perturbation); -+ } -+ -+ } -+#endif -+ -+ switch(q->hash_kind) { -+ case TCA_SFQ_HASH_CLASSIC: -+ return esfq_jhash_3words(q, info.dst, info.src, info.proto); -+ case TCA_SFQ_HASH_DST: -+ return esfq_jhash_1word(q, info.dst); -+ case TCA_SFQ_HASH_SRC: -+ return esfq_jhash_1word(q, info.src); -+ case TCA_SFQ_HASH_FWMARK: -+ return esfq_jhash_1word(q, info.mark); -+#ifdef CONFIG_NET_SCH_ESFQ_NFCT -+ case TCA_SFQ_HASH_CTORIGDST: -+ return esfq_jhash_1word(q, info.ctorigdst); -+ case TCA_SFQ_HASH_CTORIGSRC: -+ return esfq_jhash_1word(q, info.ctorigsrc); -+ case TCA_SFQ_HASH_CTREPLDST: -+ return esfq_jhash_1word(q, info.ctrepldst); -+ case TCA_SFQ_HASH_CTREPLSRC: -+ return esfq_jhash_1word(q, info.ctreplsrc); -+ case TCA_SFQ_HASH_CTNATCHG: -+ { -+ if (info.ctorigdst == info.ctreplsrc) -+ return esfq_jhash_1word(q, info.ctorigsrc); -+ return esfq_jhash_1word(q, info.ctreplsrc); -+ } -+#endif -+ default: -+ if (net_ratelimit()) -+ printk(KERN_WARNING "ESFQ: Unknown hash method. Falling back to classic.\n"); -+ } -+ return esfq_jhash_3words(q, info.dst, info.src, info.proto); -+} -+ -+static inline void esfq_link(struct esfq_sched_data *q, esfq_index x) -+{ -+ esfq_index p, n; -+ int d = q->qs[x].qlen + q->depth; -+ -+ p = d; -+ n = q->dep[d].next; -+ q->dep[x].next = n; -+ q->dep[x].prev = p; -+ q->dep[p].next = q->dep[n].prev = x; -+} -+ -+static inline void esfq_dec(struct esfq_sched_data *q, esfq_index x) -+{ -+ esfq_index p, n; -+ -+ n = q->dep[x].next; -+ p = q->dep[x].prev; -+ q->dep[p].next = n; -+ q->dep[n].prev = p; -+ -+ if (n == p && q->max_depth == q->qs[x].qlen + 1) -+ q->max_depth--; -+ -+ esfq_link(q, x); -+} -+ -+static inline void esfq_inc(struct esfq_sched_data *q, esfq_index x) -+{ -+ esfq_index p, n; -+ int d; -+ -+ n = q->dep[x].next; -+ p = q->dep[x].prev; -+ q->dep[p].next = n; -+ q->dep[n].prev = p; -+ d = q->qs[x].qlen; -+ if (q->max_depth < d) -+ q->max_depth = d; -+ -+ esfq_link(q, x); -+} -+ -+static unsigned int esfq_drop(struct Qdisc *sch) -+{ -+ struct esfq_sched_data *q = qdisc_priv(sch); -+ esfq_index d = q->max_depth; -+ struct sk_buff *skb; -+ unsigned int len; -+ -+ /* Queue is full! Find the longest slot and -+ drop a packet from it */ -+ -+ if (d > 1) { -+ esfq_index x = q->dep[d+q->depth].next; -+ skb = q->qs[x].prev; -+ len = skb->len; -+ __skb_unlink(skb, &q->qs[x]); -+ kfree_skb(skb); -+ esfq_dec(q, x); -+ sch->q.qlen--; -+ sch->qstats.drops++; -+ sch->qstats.backlog -= len; -+ return len; -+ } -+ -+ if (d == 1) { -+ /* It is difficult to believe, but ALL THE SLOTS HAVE LENGTH 1. */ -+ d = q->next[q->tail]; -+ q->next[q->tail] = q->next[d]; -+ q->allot[q->next[d]] += q->quantum; -+ skb = q->qs[d].prev; -+ len = skb->len; -+ __skb_unlink(skb, &q->qs[d]); -+ kfree_skb(skb); -+ esfq_dec(q, d); -+ sch->q.qlen--; -+ q->ht[q->hash[d]] = q->depth; -+ sch->qstats.drops++; -+ sch->qstats.backlog -= len; -+ return len; -+ } -+ -+ return 0; -+} -+ -+static void esfq_q_enqueue(struct sk_buff *skb, struct esfq_sched_data *q, unsigned int end) -+{ -+ unsigned hash = esfq_hash(q, skb); -+ unsigned depth = q->depth; -+ esfq_index x; -+ -+ x = q->ht[hash]; -+ if (x == depth) { -+ q->ht[hash] = x = q->dep[depth].next; -+ q->hash[x] = hash; -+ } -+ -+ if (end == ESFQ_TAIL) -+ __skb_queue_tail(&q->qs[x], skb); -+ else -+ __skb_queue_head(&q->qs[x], skb); -+ -+ esfq_inc(q, x); -+ if (q->qs[x].qlen == 1) { /* The flow is new */ -+ if (q->tail == depth) { /* It is the first flow */ -+ q->tail = x; -+ q->next[x] = x; -+ q->allot[x] = q->quantum; -+ } else { -+ q->next[x] = q->next[q->tail]; -+ q->next[q->tail] = x; -+ q->tail = x; -+ } -+ } -+} -+ -+static int esfq_enqueue(struct sk_buff *skb, struct Qdisc* sch) -+{ -+ struct esfq_sched_data *q = qdisc_priv(sch); -+ esfq_q_enqueue(skb, q, ESFQ_TAIL); -+ sch->qstats.backlog += skb->len; -+ if (++sch->q.qlen < q->limit-1) { -+ sch->bstats.bytes += skb->len; -+ sch->bstats.packets++; -+ return 0; -+ } -+ -+ sch->qstats.drops++; -+ esfq_drop(sch); -+ return NET_XMIT_CN; -+} -+ -+static struct sk_buff *esfq_peek(struct Qdisc* sch) -+{ -+ struct esfq_sched_data *q = qdisc_priv(sch); -+ esfq_index a; -+ -+ /* No active slots */ -+ if (q->tail == q->depth) -+ return NULL; -+ -+ a = q->next[q->tail]; -+ return skb_peek(&q->qs[a]); -+} -+ -+static struct sk_buff *esfq_q_dequeue(struct esfq_sched_data *q) -+{ -+ struct sk_buff *skb; -+ unsigned depth = q->depth; -+ esfq_index a, old_a; -+ -+ /* No active slots */ -+ if (q->tail == depth) -+ return NULL; -+ -+ a = old_a = q->next[q->tail]; -+ -+ /* Grab packet */ -+ skb = __skb_dequeue(&q->qs[a]); -+ esfq_dec(q, a); -+ -+ /* Is the slot empty? */ -+ if (q->qs[a].qlen == 0) { -+ q->ht[q->hash[a]] = depth; -+ a = q->next[a]; -+ if (a == old_a) { -+ q->tail = depth; -+ return skb; -+ } -+ q->next[q->tail] = a; -+ q->allot[a] += q->quantum; -+ } else if ((q->allot[a] -= skb->len) <= 0) { -+ q->tail = a; -+ a = q->next[a]; -+ q->allot[a] += q->quantum; -+ } -+ -+ return skb; -+} -+ -+static struct sk_buff *esfq_dequeue(struct Qdisc* sch) -+{ -+ struct esfq_sched_data *q = qdisc_priv(sch); -+ struct sk_buff *skb; -+ -+ skb = esfq_q_dequeue(q); -+ if (skb == NULL) -+ return NULL; -+ sch->q.qlen--; -+ sch->qstats.backlog -= skb->len; -+ return skb; -+} -+ -+static void esfq_q_destroy(struct esfq_sched_data *q) -+{ -+ del_timer(&q->perturb_timer); -+ if(q->ht) -+ kfree(q->ht); -+ if(q->dep) -+ kfree(q->dep); -+ if(q->next) -+ kfree(q->next); -+ if(q->allot) -+ kfree(q->allot); -+ if(q->hash) -+ kfree(q->hash); -+ if(q->qs) -+ kfree(q->qs); -+} -+ -+static void esfq_destroy(struct Qdisc *sch) -+{ -+ struct esfq_sched_data *q = qdisc_priv(sch); -+ esfq_q_destroy(q); -+} -+ -+ -+static void esfq_reset(struct Qdisc* sch) -+{ -+ struct sk_buff *skb; -+ -+ while ((skb = esfq_dequeue(sch)) != NULL) -+ kfree_skb(skb); -+} -+ -+static void esfq_perturbation(unsigned long arg) -+{ -+ struct Qdisc *sch = (struct Qdisc*)arg; -+ struct esfq_sched_data *q = qdisc_priv(sch); -+ -+ q->perturbation = net_random()&0x1F; -+ -+ if (q->perturb_period) { -+ q->perturb_timer.expires = jiffies + q->perturb_period; -+ add_timer(&q->perturb_timer); -+ } -+} -+ -+static unsigned int esfq_check_hash(unsigned int kind) -+{ -+ switch (kind) { -+ case TCA_SFQ_HASH_CTORIGDST: -+ case TCA_SFQ_HASH_CTORIGSRC: -+ case TCA_SFQ_HASH_CTREPLDST: -+ case TCA_SFQ_HASH_CTREPLSRC: -+ case TCA_SFQ_HASH_CTNATCHG: -+#ifndef CONFIG_NET_SCH_ESFQ_NFCT -+ { -+ if (net_ratelimit()) -+ printk(KERN_WARNING "ESFQ: Conntrack hash types disabled in kernel config. Falling back to classic.\n"); -+ return TCA_SFQ_HASH_CLASSIC; -+ } -+#endif -+ case TCA_SFQ_HASH_CLASSIC: -+ case TCA_SFQ_HASH_DST: -+ case TCA_SFQ_HASH_SRC: -+ case TCA_SFQ_HASH_FWMARK: -+ return kind; -+ default: -+ { -+ if (net_ratelimit()) -+ printk(KERN_WARNING "ESFQ: Unknown hash type. Falling back to classic.\n"); -+ return TCA_SFQ_HASH_CLASSIC; -+ } -+ } -+} -+ -+static int esfq_q_init(struct esfq_sched_data *q, struct nlattr *opt) -+{ -+ struct tc_esfq_qopt *ctl = nla_data(opt); -+ esfq_index p = ~0U/2; -+ int i; -+ -+ if (opt && opt->nla_len < nla_attr_size(sizeof(*ctl))) -+ return -EINVAL; -+ -+ q->perturbation = 0; -+ q->hash_kind = TCA_SFQ_HASH_CLASSIC; -+ q->max_depth = 0; -+ if (opt == NULL) { -+ q->perturb_period = 0; -+ q->hash_divisor = 1024; -+ q->tail = q->limit = q->depth = 128; -+ -+ } else { -+ struct tc_esfq_qopt *ctl = nla_data(opt); -+ if (ctl->quantum) -+ q->quantum = ctl->quantum; -+ q->perturb_period = ctl->perturb_period*HZ; -+ q->hash_divisor = ctl->divisor ? : 1024; -+ q->tail = q->limit = q->depth = ctl->flows ? : 128; -+ -+ if ( q->depth > p - 1 ) -+ return -EINVAL; -+ -+ if (ctl->limit) -+ q->limit = min_t(u32, ctl->limit, q->depth); -+ -+ if (ctl->hash_kind) { -+ q->hash_kind = esfq_check_hash(ctl->hash_kind); -+ } -+ } -+ -+ q->ht = kmalloc(q->hash_divisor*sizeof(esfq_index), GFP_KERNEL); -+ if (!q->ht) -+ goto err_case; -+ q->dep = kmalloc((1+q->depth*2)*sizeof(struct esfq_head), GFP_KERNEL); -+ if (!q->dep) -+ goto err_case; -+ q->next = kmalloc(q->depth*sizeof(esfq_index), GFP_KERNEL); -+ if (!q->next) -+ goto err_case; -+ q->allot = kmalloc(q->depth*sizeof(short), GFP_KERNEL); -+ if (!q->allot) -+ goto err_case; -+ q->hash = kmalloc(q->depth*sizeof(unsigned short), GFP_KERNEL); -+ if (!q->hash) -+ goto err_case; -+ q->qs = kmalloc(q->depth*sizeof(struct sk_buff_head), GFP_KERNEL); -+ if (!q->qs) -+ goto err_case; -+ -+ for (i=0; i< q->hash_divisor; i++) -+ q->ht[i] = q->depth; -+ for (i=0; idepth; i++) { -+ skb_queue_head_init(&q->qs[i]); -+ q->dep[i+q->depth].next = i+q->depth; -+ q->dep[i+q->depth].prev = i+q->depth; -+ } -+ -+ for (i=0; idepth; i++) -+ esfq_link(q, i); -+ return 0; -+err_case: -+ esfq_q_destroy(q); -+ return -ENOBUFS; -+} -+ -+static int esfq_init(struct Qdisc *sch, struct nlattr *opt) -+{ -+ struct esfq_sched_data *q = qdisc_priv(sch); -+ int err; -+ -+ q->quantum = psched_mtu(qdisc_dev(sch)); /* default */ -+ if ((err = esfq_q_init(q, opt))) -+ return err; -+ -+ init_timer(&q->perturb_timer); -+ q->perturb_timer.data = (unsigned long)sch; -+ q->perturb_timer.function = esfq_perturbation; -+ if (q->perturb_period) { -+ q->perturb_timer.expires = jiffies + q->perturb_period; -+ add_timer(&q->perturb_timer); -+ } -+ -+ return 0; -+} -+ -+static int esfq_change(struct Qdisc *sch, struct nlattr *opt) -+{ -+ struct esfq_sched_data *q = qdisc_priv(sch); -+ struct esfq_sched_data new; -+ struct sk_buff *skb; -+ int err; -+ -+ /* set up new queue */ -+ memset(&new, 0, sizeof(struct esfq_sched_data)); -+ new.quantum = psched_mtu(qdisc_dev(sch)); /* default */ -+ if ((err = esfq_q_init(&new, opt))) -+ return err; -+ -+ /* copy all packets from the old queue to the new queue */ -+ sch_tree_lock(sch); -+ while ((skb = esfq_q_dequeue(q)) != NULL) -+ esfq_q_enqueue(skb, &new, ESFQ_TAIL); -+ -+ /* clean up the old queue */ -+ esfq_q_destroy(q); -+ -+ /* copy elements of the new queue into the old queue */ -+ q->perturb_period = new.perturb_period; -+ q->quantum = new.quantum; -+ q->limit = new.limit; -+ q->depth = new.depth; -+ q->hash_divisor = new.hash_divisor; -+ q->hash_kind = new.hash_kind; -+ q->tail = new.tail; -+ q->max_depth = new.max_depth; -+ q->ht = new.ht; -+ q->dep = new.dep; -+ q->next = new.next; -+ q->allot = new.allot; -+ q->hash = new.hash; -+ q->qs = new.qs; -+ -+ /* finish up */ -+ if (q->perturb_period) { -+ q->perturb_timer.expires = jiffies + q->perturb_period; -+ add_timer(&q->perturb_timer); -+ } else { -+ q->perturbation = 0; -+ } -+ sch_tree_unlock(sch); -+ return 0; -+} -+ -+static int esfq_dump(struct Qdisc *sch, struct sk_buff *skb) -+{ -+ struct esfq_sched_data *q = qdisc_priv(sch); -+ unsigned char *b = skb_tail_pointer(skb); -+ struct tc_esfq_qopt opt; -+ -+ opt.quantum = q->quantum; -+ opt.perturb_period = q->perturb_period/HZ; -+ -+ opt.limit = q->limit; -+ opt.divisor = q->hash_divisor; -+ opt.flows = q->depth; -+ opt.hash_kind = q->hash_kind; -+ -+ NLA_PUT(skb, TCA_OPTIONS, sizeof(opt), &opt); -+ -+ return skb->len; -+ -+nla_put_failure: -+ nlmsg_trim(skb, b); -+ return -1; -+} -+ -+static struct Qdisc_ops esfq_qdisc_ops = -+{ -+ .next = NULL, -+ .cl_ops = NULL, -+ .id = "esfq", -+ .priv_size = sizeof(struct esfq_sched_data), -+ .enqueue = esfq_enqueue, -+ .dequeue = esfq_dequeue, -+ .peek = esfq_peek, -+ .drop = esfq_drop, -+ .init = esfq_init, -+ .reset = esfq_reset, -+ .destroy = esfq_destroy, -+ .change = esfq_change, -+ .dump = esfq_dump, -+ .owner = THIS_MODULE, -+}; -+ -+static int __init esfq_module_init(void) -+{ -+ return register_qdisc(&esfq_qdisc_ops); -+} -+static void __exit esfq_module_exit(void) -+{ -+ unregister_qdisc(&esfq_qdisc_ops); -+} -+module_init(esfq_module_init) -+module_exit(esfq_module_exit) -+MODULE_LICENSE("GPL"); diff --git a/target/linux/generic/patches-2.6.39/201-extra_optimization.patch b/target/linux/generic/patches-2.6.39/201-extra_optimization.patch new file mode 100644 index 00000000000..8039c665239 --- /dev/null +++ b/target/linux/generic/patches-2.6.39/201-extra_optimization.patch @@ -0,0 +1,24 @@ +--- a/Makefile ++++ b/Makefile +@@ -543,9 +543,9 @@ endif # $(dot-config) + all: vmlinux + + ifdef CONFIG_CC_OPTIMIZE_FOR_SIZE +-KBUILD_CFLAGS += -Os ++KBUILD_CFLAGS += -Os -fno-caller-saves + else +-KBUILD_CFLAGS += -O2 ++KBUILD_CFLAGS += -O2 -fno-reorder-blocks -fno-tree-ch -fno-caller-saves + endif + + include $(srctree)/arch/$(SRCARCH)/Makefile +@@ -600,6 +600,9 @@ endif + NOSTDINC_FLAGS += -nostdinc -isystem $(shell $(CC) -print-file-name=include) + CHECKFLAGS += $(NOSTDINC_FLAGS) + ++# improve gcc optimization ++CFLAGS += $(call cc-option,-funit-at-a-time,) ++ + # warn about C99 declaration after statement + KBUILD_CFLAGS += $(call cc-option,-Wdeclaration-after-statement,) + diff --git a/target/linux/generic/patches-2.6.39/202-mips_mem_functions_performance.patch b/target/linux/generic/patches-2.6.39/202-mips_mem_functions_performance.patch deleted file mode 100644 index 6ea9ba51ee0..00000000000 --- a/target/linux/generic/patches-2.6.39/202-mips_mem_functions_performance.patch +++ /dev/null @@ -1,83 +0,0 @@ ---- a/arch/mips/include/asm/string.h -+++ b/arch/mips/include/asm/string.h -@@ -133,11 +133,44 @@ strncmp(__const__ char *__cs, __const__ - - #define __HAVE_ARCH_MEMSET - extern void *memset(void *__s, int __c, size_t __count); -+#define memset(__s, __c, len) \ -+({ \ -+ size_t __len = (len); \ -+ void *__ret; \ -+ if (__builtin_constant_p(len) && __len >= 64) \ -+ __ret = memset((__s), (__c), __len); \ -+ else \ -+ __ret = __builtin_memset((__s), (__c), __len); \ -+ __ret; \ -+}) - - #define __HAVE_ARCH_MEMCPY - extern void *memcpy(void *__to, __const__ void *__from, size_t __n); -+#define memcpy(dst, src, len) \ -+({ \ -+ size_t __len = (len); \ -+ void *__ret; \ -+ if (__builtin_constant_p(len) && __len >= 64) \ -+ __ret = memcpy((dst), (src), __len); \ -+ else \ -+ __ret = __builtin_memcpy((dst), (src), __len); \ -+ __ret; \ -+}) - - #define __HAVE_ARCH_MEMMOVE - extern void *memmove(void *__dest, __const__ void *__src, size_t __n); -+#define memmove(dst, src, len) \ -+({ \ -+ size_t __len = (len); \ -+ void *__ret; \ -+ if (__builtin_constant_p(len) && __len >= 64) \ -+ __ret = memmove((dst), (src), __len); \ -+ else \ -+ __ret = __builtin_memmove((dst), (src), __len); \ -+ __ret; \ -+}) -+ -+#define __HAVE_ARCH_MEMCMP -+#define memcmp(src1, src2, len) __builtin_memcmp((src1), (src2), (len)) - - #endif /* _ASM_STRING_H */ ---- a/arch/mips/lib/Makefile -+++ b/arch/mips/lib/Makefile -@@ -3,7 +3,7 @@ - # - - lib-y += csum_partial.o delay.o memcpy.o memcpy-inatomic.o memset.o \ -- strlen_user.o strncpy_user.o strnlen_user.o uncached.o -+ strlen_user.o strncpy_user.o strnlen_user.o uncached.o memcmp.o - - obj-y += iomap.o - obj-$(CONFIG_PCI) += iomap-pci.o ---- /dev/null -+++ b/arch/mips/lib/memcmp.c -@@ -0,0 +1,22 @@ -+/* -+ * copied from linux/lib/string.c -+ * -+ * Copyright (C) 1991, 1992 Linus Torvalds -+ */ -+ -+#include -+#include -+ -+#undef memcmp -+int memcmp(const void *cs, const void *ct, size_t count) -+{ -+ const unsigned char *su1, *su2; -+ int res = 0; -+ -+ for (su1 = cs, su2 = ct; 0 < count; ++su1, ++su2, count--) -+ if ((res = *su1 - *su2) != 0) -+ break; -+ return res; -+} -+EXPORT_SYMBOL(memcmp); -+ diff --git a/target/linux/generic/patches-2.6.39/203-slab_maxsize.patch b/target/linux/generic/patches-2.6.39/203-slab_maxsize.patch deleted file mode 100644 index 1c9569450ad..00000000000 --- a/target/linux/generic/patches-2.6.39/203-slab_maxsize.patch +++ /dev/null @@ -1,13 +0,0 @@ ---- a/include/linux/slab.h -+++ b/include/linux/slab.h -@@ -127,8 +127,8 @@ unsigned int kmem_cache_size(struct kmem - * to do various tricks to work around compiler limitations in order to - * ensure proper constant folding. - */ --#define KMALLOC_SHIFT_HIGH ((MAX_ORDER + PAGE_SHIFT - 1) <= 25 ? \ -- (MAX_ORDER + PAGE_SHIFT - 1) : 25) -+#define KMALLOC_SHIFT_HIGH ((MAX_ORDER + PAGE_SHIFT - 1) <= 17 ? \ -+ (MAX_ORDER + PAGE_SHIFT - 1) : 17) - - #define KMALLOC_MAX_SIZE (1UL << KMALLOC_SHIFT_HIGH) - #define KMALLOC_MAX_ORDER (KMALLOC_SHIFT_HIGH - PAGE_SHIFT) diff --git a/target/linux/generic/patches-2.6.39/204-jffs2_eofdetect.patch b/target/linux/generic/patches-2.6.39/204-jffs2_eofdetect.patch deleted file mode 100644 index eaf9489d357..00000000000 --- a/target/linux/generic/patches-2.6.39/204-jffs2_eofdetect.patch +++ /dev/null @@ -1,132 +0,0 @@ ---- a/fs/jffs2/build.c -+++ b/fs/jffs2/build.c -@@ -112,6 +112,17 @@ static int jffs2_build_filesystem(struct - dbg_fsbuild("scanned flash completely\n"); - jffs2_dbg_dump_block_lists_nolock(c); - -+ if (c->flags & (1 << 7)) { -+ printk("%s(): unlocking the mtd device... ", __func__); -+ if (c->mtd->unlock) -+ c->mtd->unlock(c->mtd, 0, c->mtd->size); -+ printk("done.\n"); -+ -+ printk("%s(): erasing all blocks after the end marker... ", __func__); -+ jffs2_erase_pending_blocks(c, -1); -+ printk("done.\n"); -+ } -+ - dbg_fsbuild("pass 1 starting\n"); - c->flags |= JFFS2_SB_FLAG_BUILDING; - /* Now scan the directory tree, increasing nlink according to every dirent found. */ ---- a/fs/jffs2/scan.c -+++ b/fs/jffs2/scan.c -@@ -72,7 +72,7 @@ static int file_dirty(struct jffs2_sb_in - return ret; - if ((ret = jffs2_scan_dirty_space(c, jeb, jeb->free_size))) - return ret; -- /* Turned wasted size into dirty, since we apparently -+ /* Turned wasted size into dirty, since we apparently - think it's recoverable now. */ - jeb->dirty_size += jeb->wasted_size; - c->dirty_size += jeb->wasted_size; -@@ -144,8 +144,11 @@ int jffs2_scan_medium(struct jffs2_sb_in - /* reset summary info for next eraseblock scan */ - jffs2_sum_reset_collected(s); - -- ret = jffs2_scan_eraseblock(c, jeb, buf_size?flashbuf:(flashbuf+jeb->offset), -- buf_size, s); -+ if (c->flags & (1 << 7)) -+ ret = BLK_STATE_ALLFF; -+ else -+ ret = jffs2_scan_eraseblock(c, jeb, buf_size?flashbuf:(flashbuf+jeb->offset), -+ buf_size, s); - - if (ret < 0) - goto out; -@@ -402,7 +405,7 @@ static int jffs2_scan_xref_node(struct j - if (!ref) - return -ENOMEM; - -- /* BEFORE jffs2_build_xattr_subsystem() called, -+ /* BEFORE jffs2_build_xattr_subsystem() called, - * and AFTER xattr_ref is marked as a dead xref, - * ref->xid is used to store 32bit xid, xd is not used - * ref->ino is used to store 32bit inode-number, ic is not used -@@ -475,7 +478,7 @@ static int jffs2_scan_eraseblock (struct - struct jffs2_sum_marker *sm; - void *sumptr = NULL; - uint32_t sumlen; -- -+ - if (!buf_size) { - /* XIP case. Just look, point at the summary if it's there */ - sm = (void *)buf + c->sector_size - sizeof(*sm); -@@ -491,9 +494,9 @@ static int jffs2_scan_eraseblock (struct - buf_len = sizeof(*sm); - - /* Read as much as we want into the _end_ of the preallocated buffer */ -- err = jffs2_fill_scan_buf(c, buf + buf_size - buf_len, -+ err = jffs2_fill_scan_buf(c, buf + buf_size - buf_len, - jeb->offset + c->sector_size - buf_len, -- buf_len); -+ buf_len); - if (err) - return err; - -@@ -512,9 +515,9 @@ static int jffs2_scan_eraseblock (struct - } - if (buf_len < sumlen) { - /* Need to read more so that the entire summary node is present */ -- err = jffs2_fill_scan_buf(c, sumptr, -+ err = jffs2_fill_scan_buf(c, sumptr, - jeb->offset + c->sector_size - sumlen, -- sumlen - buf_len); -+ sumlen - buf_len); - if (err) - return err; - } -@@ -527,7 +530,7 @@ static int jffs2_scan_eraseblock (struct - - if (buf_size && sumlen > buf_size) - kfree(sumptr); -- /* If it returns with a real error, bail. -+ /* If it returns with a real error, bail. - If it returns positive, that's a block classification - (i.e. BLK_STATE_xxx) so return that too. - If it returns zero, fall through to full scan. */ -@@ -548,6 +551,17 @@ static int jffs2_scan_eraseblock (struct - return err; - } - -+ if ((buf[0] == 0xde) && -+ (buf[1] == 0xad) && -+ (buf[2] == 0xc0) && -+ (buf[3] == 0xde)) { -+ /* end of filesystem. erase everything after this point */ -+ printk("%s(): End of filesystem marker found at 0x%x\n", __func__, jeb->offset); -+ c->flags |= (1 << 7); -+ -+ return BLK_STATE_ALLFF; -+ } -+ - /* We temporarily use 'ofs' as a pointer into the buffer/jeb */ - ofs = 0; - max_ofs = EMPTY_SCAN_SIZE(c->sector_size); -@@ -673,7 +687,7 @@ scan_more: - scan_end = buf_len; - goto more_empty; - } -- -+ - /* See how much more there is to read in this eraseblock... */ - buf_len = min_t(uint32_t, buf_size, jeb->offset + c->sector_size - ofs); - if (!buf_len) { -@@ -909,7 +923,7 @@ scan_more: - - D1(printk(KERN_DEBUG "Block at 0x%08x: free 0x%08x, dirty 0x%08x, unchecked 0x%08x, used 0x%08x, wasted 0x%08x\n", - jeb->offset,jeb->free_size, jeb->dirty_size, jeb->unchecked_size, jeb->used_size, jeb->wasted_size)); -- -+ - /* mark_node_obsolete can add to wasted !! */ - if (jeb->wasted_size) { - jeb->dirty_size += jeb->wasted_size; diff --git a/target/linux/generic/patches-2.6.39/208-mips_oprofile_fix.patch b/target/linux/generic/patches-2.6.39/208-mips_oprofile_fix.patch deleted file mode 100644 index f83c96bb81f..00000000000 --- a/target/linux/generic/patches-2.6.39/208-mips_oprofile_fix.patch +++ /dev/null @@ -1,35 +0,0 @@ ---- a/arch/mips/oprofile/op_model_mipsxx.c -+++ b/arch/mips/oprofile/op_model_mipsxx.c -@@ -298,6 +298,11 @@ static void reset_counters(void *arg) - } - } - -+static irqreturn_t mipsxx_perfcount_int(int irq, void *dev_id) -+{ -+ return mipsxx_perfcount_handler(); -+} -+ - static int __init mipsxx_init(void) - { - int counters; -@@ -374,6 +379,10 @@ static int __init mipsxx_init(void) - save_perf_irq = perf_irq; - perf_irq = mipsxx_perfcount_handler; - -+ if (cp0_perfcount_irq >= 0) -+ return request_irq(cp0_perfcount_irq, mipsxx_perfcount_int, -+ IRQF_SHARED, "Perfcounter", save_perf_irq); -+ - return 0; - } - -@@ -381,6 +390,9 @@ static void mipsxx_exit(void) - { - int counters = op_model_mipsxx_ops.num_counters; - -+ if (cp0_perfcount_irq >= 0) -+ free_irq(cp0_perfcount_irq, save_perf_irq); -+ - counters = counters_per_cpu_to_total(counters); - on_each_cpu(reset_counters, (void *)(long)counters, 1); - diff --git a/target/linux/generic/patches-2.6.39/209-overlayfs.patch b/target/linux/generic/patches-2.6.39/209-overlayfs.patch deleted file mode 100644 index b5c91990757..00000000000 --- a/target/linux/generic/patches-2.6.39/209-overlayfs.patch +++ /dev/null @@ -1,2840 +0,0 @@ ---- a/include/linux/fs.h -+++ b/include/linux/fs.h -@@ -1595,6 +1595,7 @@ struct inode_operations { - void (*truncate_range)(struct inode *, loff_t, loff_t); - int (*fiemap)(struct inode *, struct fiemap_extent_info *, u64 start, - u64 len); -+ struct file *(*open)(struct dentry *, int flags, const struct cred *); - } ____cacheline_aligned; - - struct seq_file; -@@ -1989,6 +1990,7 @@ extern long do_sys_open(int dfd, const c - extern struct file *filp_open(const char *, int, int); - extern struct file *file_open_root(struct dentry *, struct vfsmount *, - const char *, int); -+extern struct file *vfs_open(struct path *, int flags, const struct cred *); - extern struct file * dentry_open(struct dentry *, struct vfsmount *, int, - const struct cred *); - extern int filp_close(struct file *, fl_owner_t id); ---- a/fs/open.c -+++ b/fs/open.c -@@ -666,8 +666,7 @@ static inline int __get_file_write_acces - return error; - } - --static struct file *__dentry_open(struct dentry *dentry, struct vfsmount *mnt, -- struct file *f, -+static struct file *__dentry_open(struct path *path, struct file *f, - int (*open)(struct inode *, struct file *), - const struct cred *cred) - { -@@ -675,15 +674,16 @@ static struct file *__dentry_open(struct - struct inode *inode; - int error; - -+ path_get(path); - f->f_mode = OPEN_FMODE(f->f_flags) | FMODE_LSEEK | - FMODE_PREAD | FMODE_PWRITE; - - if (unlikely(f->f_flags & O_PATH)) - f->f_mode = FMODE_PATH; - -- inode = dentry->d_inode; -+ inode = path->dentry->d_inode; - if (f->f_mode & FMODE_WRITE) { -- error = __get_file_write_access(inode, mnt); -+ error = __get_file_write_access(inode, path->mnt); - if (error) - goto cleanup_file; - if (!special_file(inode->i_mode)) -@@ -691,8 +691,7 @@ static struct file *__dentry_open(struct - } - - f->f_mapping = inode->i_mapping; -- f->f_path.dentry = dentry; -- f->f_path.mnt = mnt; -+ f->f_path = *path; - f->f_pos = 0; - file_sb_list_add(f, inode->i_sb); - -@@ -745,7 +744,7 @@ cleanup_all: - * here, so just reset the state. - */ - file_reset_write(f); -- mnt_drop_write(mnt); -+ mnt_drop_write(path->mnt); - } - } - file_sb_list_del(f); -@@ -753,8 +752,7 @@ cleanup_all: - f->f_path.mnt = NULL; - cleanup_file: - put_filp(f); -- dput(dentry); -- mntput(mnt); -+ path_put(path); - return ERR_PTR(error); - } - -@@ -780,14 +778,14 @@ cleanup_file: - struct file *lookup_instantiate_filp(struct nameidata *nd, struct dentry *dentry, - int (*open)(struct inode *, struct file *)) - { -+ struct path path = { .dentry = dentry, .mnt = nd->path.mnt }; - const struct cred *cred = current_cred(); - - if (IS_ERR(nd->intent.open.file)) - goto out; - if (IS_ERR(dentry)) - goto out_err; -- nd->intent.open.file = __dentry_open(dget(dentry), mntget(nd->path.mnt), -- nd->intent.open.file, -+ nd->intent.open.file = __dentry_open(&path, nd->intent.open.file, - open, cred); - out: - return nd->intent.open.file; -@@ -816,10 +814,17 @@ struct file *nameidata_to_filp(struct na - - /* Has the filesystem initialised the file for us? */ - if (filp->f_path.dentry == NULL) { -- path_get(&nd->path); -- filp = __dentry_open(nd->path.dentry, nd->path.mnt, filp, -- NULL, cred); -+ struct inode *inode = nd->path.dentry->d_inode; -+ -+ if (inode->i_op->open) { -+ int flags = filp->f_flags; -+ put_filp(filp); -+ filp = inode->i_op->open(nd->path.dentry, flags, cred); -+ } else { -+ filp = __dentry_open(&nd->path, filp, NULL, cred); -+ } - } -+ - return filp; - } - -@@ -830,26 +835,45 @@ struct file *nameidata_to_filp(struct na - struct file *dentry_open(struct dentry *dentry, struct vfsmount *mnt, int flags, - const struct cred *cred) - { -- int error; -- struct file *f; -- -- validate_creds(cred); -+ struct path path = { .dentry = dentry, .mnt = mnt }; -+ struct file *ret; - - /* We must always pass in a valid mount pointer. */ - BUG_ON(!mnt); - -- error = -ENFILE; -+ ret = vfs_open(&path, flags, cred); -+ path_put(&path); -+ -+ return ret; -+} -+EXPORT_SYMBOL(dentry_open); -+ -+/** -+ * vfs_open - open the file at the given path -+ * @path: path to open -+ * @flags: open flags -+ * @cred: credentials to use -+ * -+ * Open the file. If successful, the returned file will have acquired -+ * an additional reference for path. -+ */ -+struct file *vfs_open(struct path *path, int flags, const struct cred *cred) -+{ -+ struct file *f; -+ struct inode *inode = path->dentry->d_inode; -+ -+ validate_creds(cred); -+ -+ if (inode->i_op->open) -+ return inode->i_op->open(path->dentry, flags, cred); - f = get_empty_filp(); -- if (f == NULL) { -- dput(dentry); -- mntput(mnt); -- return ERR_PTR(error); -- } -+ if (f == NULL) -+ return ERR_PTR(-ENFILE); - - f->f_flags = flags; -- return __dentry_open(dentry, mnt, f, NULL, cred); -+ return __dentry_open(path, f, NULL, cred); - } --EXPORT_SYMBOL(dentry_open); -+EXPORT_SYMBOL(vfs_open); - - static void __put_unused_fd(struct files_struct *files, unsigned int fd) - { ---- a/fs/splice.c -+++ b/fs/splice.c -@@ -1296,6 +1296,7 @@ long do_splice_direct(struct file *in, l - - return ret; - } -+EXPORT_SYMBOL(do_splice_direct); - - static int splice_pipe_to_pipe(struct pipe_inode_info *ipipe, - struct pipe_inode_info *opipe, ---- a/fs/namespace.c -+++ b/fs/namespace.c -@@ -1510,6 +1510,23 @@ void drop_collected_mounts(struct vfsmou - release_mounts(&umount_list); - } - -+struct vfsmount *clone_private_mount(struct path *path) -+{ -+ struct vfsmount *mnt; -+ -+ if (IS_MNT_UNBINDABLE(path->mnt)) -+ return ERR_PTR(-EINVAL); -+ -+ down_read(&namespace_sem); -+ mnt = clone_mnt(path->mnt, path->dentry, CL_PRIVATE); -+ up_read(&namespace_sem); -+ if (!mnt) -+ return ERR_PTR(-ENOMEM); -+ -+ return mnt; -+} -+EXPORT_SYMBOL_GPL(clone_private_mount); -+ - int iterate_mounts(int (*f)(struct vfsmount *, void *), void *arg, - struct vfsmount *root) - { ---- a/include/linux/mount.h -+++ b/include/linux/mount.h -@@ -100,6 +100,9 @@ extern void mnt_pin(struct vfsmount *mnt - extern void mnt_unpin(struct vfsmount *mnt); - extern int __mnt_is_readonly(struct vfsmount *mnt); - -+struct path; -+extern struct vfsmount *clone_private_mount(struct path *path); -+ - extern struct vfsmount *do_kern_mount(const char *fstype, int flags, - const char *name, void *data); - ---- /dev/null -+++ b/fs/overlayfs/overlayfs.c -@@ -0,0 +1,2414 @@ -+#include -+#include -+#include -+#include -+#include -+#include -+#include -+#include -+#include -+#include -+#include -+#include -+#include -+#include -+#include -+ -+MODULE_AUTHOR("Miklos Szeredi "); -+MODULE_DESCRIPTION("Overlay filesystem"); -+MODULE_LICENSE("GPL"); -+ -+#define OVL_COPY_UP_CHUNK_SIZE (1 << 20) -+ -+struct ovl_fs { -+ struct vfsmount *upper_mnt; -+ struct vfsmount *lower_mnt; -+}; -+ -+struct ovl_entry { -+ struct dentry *__upperdentry; -+ struct dentry *lowerdentry; -+ union { -+ struct { -+ u64 version; -+ bool opaque; -+ }; -+ struct rcu_head rcu; -+ }; -+}; -+ -+static const char *ovl_whiteout_xattr = "trusted.overlay.whiteout"; -+static const char *ovl_opaque_xattr = "trusted.overlay.opaque"; -+static const char *ovl_whiteout_symlink = "(overlay-whiteout)"; -+ -+enum ovl_path_type { -+ OVL_PATH_UPPER, -+ OVL_PATH_MERGE, -+ OVL_PATH_LOWER, -+}; -+ -+static enum ovl_path_type ovl_path_type(struct dentry *dentry) -+{ -+ struct ovl_entry *oe = dentry->d_fsdata; -+ -+ if (oe->__upperdentry) { -+ if (oe->lowerdentry && S_ISDIR(dentry->d_inode->i_mode)) -+ return OVL_PATH_MERGE; -+ else -+ return OVL_PATH_UPPER; -+ } else { -+ return OVL_PATH_LOWER; -+ } -+} -+ -+static struct dentry *ovl_upperdentry_dereference(struct ovl_entry *oe) -+{ -+ struct dentry *upperdentry = ACCESS_ONCE(oe->__upperdentry); -+ smp_read_barrier_depends(); -+ return upperdentry; -+} -+ -+static void ovl_path_upper(struct dentry *dentry, struct path *path) -+{ -+ struct ovl_fs *ofs = dentry->d_sb->s_fs_info; -+ struct ovl_entry *oe = dentry->d_fsdata; -+ -+ path->mnt = ofs->upper_mnt; -+ path->dentry = ovl_upperdentry_dereference(oe); -+} -+ -+static void ovl_path_lower(struct dentry *dentry, struct path *path) -+{ -+ struct ovl_fs *ofs = dentry->d_sb->s_fs_info; -+ struct ovl_entry *oe = dentry->d_fsdata; -+ -+ path->mnt = ofs->lower_mnt; -+ path->dentry = oe->lowerdentry; -+} -+ -+static enum ovl_path_type ovl_path_real(struct dentry *dentry, -+ struct path *path) -+{ -+ -+ enum ovl_path_type type = ovl_path_type(dentry); -+ -+ if (type == OVL_PATH_LOWER) -+ ovl_path_lower(dentry, path); -+ else -+ ovl_path_upper(dentry, path); -+ -+ return type; -+} -+ -+static struct dentry *ovl_dentry_upper(struct dentry *dentry) -+{ -+ struct ovl_entry *oe = dentry->d_fsdata; -+ -+ return ovl_upperdentry_dereference(oe); -+} -+ -+static struct dentry *ovl_dentry_lower(struct dentry *dentry) -+{ -+ struct ovl_entry *oe = dentry->d_fsdata; -+ -+ return oe->lowerdentry; -+} -+ -+static struct dentry *ovl_dentry_real(struct dentry *dentry) -+{ -+ struct ovl_entry *oe = dentry->d_fsdata; -+ struct dentry *realdentry; -+ -+ realdentry = ovl_upperdentry_dereference(oe); -+ if (!realdentry) -+ realdentry = oe->lowerdentry; -+ -+ return realdentry; -+} -+ -+static bool ovl_dentry_is_opaque(struct dentry *dentry) -+{ -+ struct ovl_entry *oe = dentry->d_fsdata; -+ return oe->opaque; -+} -+ -+static void ovl_dentry_set_opaque(struct dentry *dentry, bool opaque) -+{ -+ struct ovl_entry *oe = dentry->d_fsdata; -+ oe->opaque = opaque; -+} -+ -+static void ovl_dentry_update(struct dentry *dentry, struct dentry *upperdentry) -+{ -+ struct ovl_entry *oe = dentry->d_fsdata; -+ -+ WARN_ON(!mutex_is_locked(&upperdentry->d_parent->d_inode->i_mutex)); -+ WARN_ON(oe->__upperdentry); -+ smp_wmb(); -+ oe->__upperdentry = upperdentry; -+} -+ -+static void ovl_dentry_version_inc(struct dentry *dentry) -+{ -+ struct ovl_entry *oe = dentry->d_fsdata; -+ -+ WARN_ON(!mutex_is_locked(&dentry->d_inode->i_mutex)); -+ oe->version++; -+} -+ -+static u64 ovl_dentry_version_get(struct dentry *dentry) -+{ -+ struct ovl_entry *oe = dentry->d_fsdata; -+ -+ WARN_ON(!mutex_is_locked(&dentry->d_inode->i_mutex)); -+ return oe->version; -+} -+ -+static bool ovl_is_whiteout(struct dentry *dentry) -+{ -+ int res; -+ char val; -+ -+ if (!dentry) -+ return false; -+ if (!dentry->d_inode) -+ return false; -+ if (!S_ISLNK(dentry->d_inode->i_mode)) -+ return false; -+ -+ res = vfs_getxattr(dentry, ovl_whiteout_xattr, &val, 1); -+ if (res == 1 && val == 'y') -+ return true; -+ -+ return false; -+} -+ -+static bool ovl_is_opaquedir(struct dentry *dentry) -+{ -+ int res; -+ char val; -+ -+ if (!S_ISDIR(dentry->d_inode->i_mode)) -+ return false; -+ -+ res = vfs_getxattr(dentry, ovl_opaque_xattr, &val, 1); -+ if (res == 1 && val == 'y') -+ return true; -+ -+ return false; -+} -+ -+struct ovl_cache_entry { -+ const char *name; -+ unsigned int len; -+ unsigned int type; -+ u64 ino; -+ bool is_whiteout; -+ struct list_head l_node; -+ struct rb_node node; -+}; -+ -+struct ovl_readdir_data { -+ struct rb_root *root; -+ struct list_head *list; -+ struct list_head *middle; -+ struct dentry *dir; -+ int count; -+ int err; -+}; -+ -+struct ovl_dir_file { -+ bool is_real; -+ bool is_cached; -+ struct list_head cursor; -+ u64 cache_version; -+ struct list_head cache; -+ struct file *realfile; -+}; -+ -+static struct ovl_cache_entry *ovl_cache_entry_from_node(struct rb_node *n) -+{ -+ return container_of(n, struct ovl_cache_entry, node); -+} -+ -+static struct ovl_cache_entry *ovl_cache_entry_find(struct rb_root *root, -+ const char *name, int len) -+{ -+ struct rb_node *node = root->rb_node; -+ int cmp; -+ -+ while (node) { -+ struct ovl_cache_entry *p = ovl_cache_entry_from_node(node); -+ -+ cmp = strncmp(name, p->name, len); -+ if (cmp > 0) -+ node = p->node.rb_right; -+ else if (cmp < 0 || len < p->len) -+ node = p->node.rb_left; -+ else -+ return p; -+ } -+ -+ return NULL; -+} -+ -+static struct ovl_cache_entry *ovl_cache_entry_new(const char *name, int len, -+ u64 ino, unsigned int d_type) -+{ -+ struct ovl_cache_entry *p; -+ -+ p = kmalloc(sizeof(*p) + len + 1, GFP_KERNEL); -+ if (p) { -+ char *name_copy = (char *) (p + 1); -+ memcpy(name_copy, name, len); -+ name_copy[len] = '\0'; -+ p->name = name_copy; -+ p->len = len; -+ p->type = d_type; -+ p->ino = ino; -+ p->is_whiteout = false; -+ } -+ -+ return p; -+} -+ -+static int ovl_cache_entry_add_rb(struct ovl_readdir_data *rdd, -+ const char *name, int len, u64 ino, -+ unsigned int d_type) -+{ -+ struct rb_node **newp = &rdd->root->rb_node; -+ struct rb_node *parent = NULL; -+ struct ovl_cache_entry *p; -+ -+ while (*newp) { -+ int cmp; -+ struct ovl_cache_entry *tmp; -+ -+ parent = *newp; -+ tmp = ovl_cache_entry_from_node(*newp); -+ cmp = strncmp(name, tmp->name, len); -+ if (cmp > 0) -+ newp = &tmp->node.rb_right; -+ else if (cmp < 0 || len < tmp->len) -+ newp = &tmp->node.rb_left; -+ else -+ return 0; -+ } -+ -+ p = ovl_cache_entry_new(name, len, ino, d_type); -+ if (p == NULL) -+ return -ENOMEM; -+ -+ list_add_tail(&p->l_node, rdd->list); -+ rb_link_node(&p->node, parent, newp); -+ rb_insert_color(&p->node, rdd->root); -+ -+ return 0; -+} -+ -+static int ovl_fill_lower(void *buf, const char *name, int namelen, -+ loff_t offset, u64 ino, unsigned int d_type) -+{ -+ struct ovl_readdir_data *rdd = buf; -+ struct ovl_cache_entry *p; -+ -+ rdd->count++; -+ p = ovl_cache_entry_find(rdd->root, name, namelen); -+ if (p) { -+ list_move_tail(&p->l_node, rdd->middle); -+ } else { -+ p = ovl_cache_entry_new(name, namelen, ino, d_type); -+ if (p == NULL) -+ rdd->err = -ENOMEM; -+ else -+ list_add_tail(&p->l_node, rdd->middle); -+ } -+ -+ return rdd->err; -+} -+ -+static void ovl_cache_free(struct list_head *list) -+{ -+ struct ovl_cache_entry *p; -+ struct ovl_cache_entry *n; -+ -+ list_for_each_entry_safe(p, n, list, l_node) -+ kfree(p); -+ -+ INIT_LIST_HEAD(list); -+} -+ -+static int ovl_fill_upper(void *buf, const char *name, int namelen, -+ loff_t offset, u64 ino, unsigned int d_type) -+{ -+ struct ovl_readdir_data *rdd = buf; -+ -+ rdd->count++; -+ return ovl_cache_entry_add_rb(rdd, name, namelen, ino, d_type); -+} -+ -+static int ovl_dir_read(struct path *realpath, struct ovl_readdir_data *rdd, -+ filldir_t filler) -+{ -+ struct file *realfile; -+ int err; -+ -+ realfile = vfs_open(realpath, O_RDONLY | O_DIRECTORY, current_cred()); -+ if (IS_ERR(realfile)) -+ return PTR_ERR(realfile); -+ -+ do { -+ rdd->count = 0; -+ rdd->err = 0; -+ err = vfs_readdir(realfile, filler, rdd); -+ if (err >= 0) -+ err = rdd->err; -+ } while (!err && rdd->count); -+ fput(realfile); -+ -+ return 0; -+} -+ -+static void ovl_dir_reset(struct file *file) -+{ -+ struct ovl_dir_file *od = file->private_data; -+ enum ovl_path_type type = ovl_path_type(file->f_path.dentry); -+ -+ if (ovl_dentry_version_get(file->f_path.dentry) != od->cache_version) { -+ list_del_init(&od->cursor); -+ ovl_cache_free(&od->cache); -+ od->is_cached = false; -+ } -+ WARN_ON(!od->is_real && type != OVL_PATH_MERGE); -+ if (od->is_real && type == OVL_PATH_MERGE) { -+ fput(od->realfile); -+ od->realfile = NULL; -+ od->is_real = false; -+ } -+} -+ -+static int ovl_dir_mark_whiteouts(struct ovl_readdir_data *rdd) -+{ -+ struct ovl_cache_entry *p; -+ struct dentry *dentry; -+ const struct cred *old_cred; -+ struct cred *override_cred; -+ -+ override_cred = prepare_creds(); -+ if (!override_cred) { -+ ovl_cache_free(rdd->list); -+ return -ENOMEM; -+ } -+ -+ /* -+ * CAP_SYS_ADMIN for getxattr -+ * CAP_DAC_OVERRIDE for lookup -+ */ -+ cap_raise(override_cred->cap_effective, CAP_SYS_ADMIN); -+ cap_raise(override_cred->cap_effective, CAP_DAC_OVERRIDE); -+ old_cred = override_creds(override_cred); -+ -+ mutex_lock(&rdd->dir->d_inode->i_mutex); -+ list_for_each_entry(p, rdd->list, l_node) { -+ if (p->type != DT_LNK) -+ continue; -+ -+ dentry = lookup_one_len(p->name, rdd->dir, p->len); -+ if (IS_ERR(dentry)) -+ continue; -+ -+ p->is_whiteout = ovl_is_whiteout(dentry); -+ dput(dentry); -+ } -+ mutex_unlock(&rdd->dir->d_inode->i_mutex); -+ -+ revert_creds(old_cred); -+ put_cred(override_cred); -+ -+ return 0; -+} -+ -+static int ovl_dir_read_merged(struct path *upperpath, struct path *lowerpath, -+ struct ovl_readdir_data *rdd) -+{ -+ int err; -+ struct rb_root root = RB_ROOT; -+ struct list_head middle; -+ -+ rdd->root = &root; -+ if (upperpath->dentry) { -+ rdd->dir = upperpath->dentry; -+ err = ovl_dir_read(upperpath, rdd, ovl_fill_upper); -+ if (err) -+ goto out; -+ -+ err = ovl_dir_mark_whiteouts(rdd); -+ if (err) -+ goto out; -+ } -+ /* -+ * Insert lowerpath entries before upperpath ones, this allows -+ * offsets to be reasonably constant -+ */ -+ list_add(&middle, rdd->list); -+ rdd->middle = &middle; -+ err = ovl_dir_read(lowerpath, rdd, ovl_fill_lower); -+ list_del(&middle); -+out: -+ rdd->root = NULL; -+ -+ return err; -+} -+ -+static void ovl_seek_cursor(struct ovl_dir_file *od, loff_t pos) -+{ -+ struct list_head *l; -+ loff_t off; -+ -+ l = od->cache.next; -+ for (off = 0; off < pos; off++) { -+ if (l == &od->cache) -+ break; -+ l = l->next; -+ } -+ list_move_tail(&od->cursor, l); -+} -+ -+static int ovl_readdir(struct file *file, void *buf, filldir_t filler) -+{ -+ struct ovl_dir_file *od = file->private_data; -+ int res; -+ -+ if (!file->f_pos) -+ ovl_dir_reset(file); -+ -+ if (od->is_real) { -+ res = vfs_readdir(od->realfile, filler, buf); -+ file->f_pos = od->realfile->f_pos; -+ -+ return res; -+ } -+ -+ if (!od->is_cached) { -+ struct path lowerpath; -+ struct path upperpath; -+ struct ovl_readdir_data rdd = { .list = &od->cache }; -+ -+ ovl_path_lower(file->f_path.dentry, &lowerpath); -+ ovl_path_upper(file->f_path.dentry, &upperpath); -+ -+ res = ovl_dir_read_merged(&upperpath, &lowerpath, &rdd); -+ if (res) { -+ ovl_cache_free(rdd.list); -+ return res; -+ } -+ -+ od->cache_version = ovl_dentry_version_get(file->f_path.dentry); -+ od->is_cached = true; -+ -+ ovl_seek_cursor(od, file->f_pos); -+ } -+ -+ while (od->cursor.next != &od->cache) { -+ int over; -+ loff_t off; -+ struct ovl_cache_entry *p; -+ -+ p = list_entry(od->cursor.next, struct ovl_cache_entry, l_node); -+ off = file->f_pos; -+ file->f_pos++; -+ list_move(&od->cursor, &p->l_node); -+ -+ if (p->is_whiteout) -+ continue; -+ -+ over = filler(buf, p->name, p->len, off, p->ino, p->type); -+ if (over) -+ break; -+ } -+ -+ return 0; -+} -+ -+static loff_t ovl_dir_llseek(struct file *file, loff_t offset, int origin) -+{ -+ loff_t res; -+ struct ovl_dir_file *od = file->private_data; -+ -+ mutex_lock(&file->f_dentry->d_inode->i_mutex); -+ if (!file->f_pos) -+ ovl_dir_reset(file); -+ -+ if (od->is_real) { -+ res = vfs_llseek(od->realfile, offset, origin); -+ file->f_pos = od->realfile->f_pos; -+ } else { -+ res = -EINVAL; -+ -+ switch (origin) { -+ case SEEK_CUR: -+ offset += file->f_pos; -+ break; -+ case SEEK_SET: -+ break; -+ default: -+ goto out_unlock; -+ } -+ if (offset < 0) -+ goto out_unlock; -+ -+ if (offset != file->f_pos) { -+ file->f_pos = offset; -+ if (od->is_cached) -+ ovl_seek_cursor(od, offset); -+ } -+ res = offset; -+ } -+out_unlock: -+ mutex_unlock(&file->f_dentry->d_inode->i_mutex); -+ -+ return res; -+} -+ -+static int ovl_dir_fsync(struct file *file, int datasync) -+{ -+ struct ovl_dir_file *od = file->private_data; -+ -+ /* May need to reopen directory if it got copied up */ -+ if (!od->realfile) { -+ struct path upperpath; -+ -+ ovl_path_upper(file->f_path.dentry, &upperpath); -+ od->realfile = vfs_open(&upperpath, O_RDONLY, current_cred()); -+ if (IS_ERR(od->realfile)) -+ return PTR_ERR(od->realfile); -+ } -+ -+ return vfs_fsync(od->realfile, datasync); -+} -+ -+static int ovl_dir_release(struct inode *inode, struct file *file) -+{ -+ struct ovl_dir_file *od = file->private_data; -+ -+ list_del(&od->cursor); -+ ovl_cache_free(&od->cache); -+ if (od->realfile) -+ fput(od->realfile); -+ kfree(od); -+ -+ return 0; -+} -+ -+static int ovl_dir_open(struct inode *inode, struct file *file) -+{ -+ struct path realpath; -+ struct file *realfile; -+ struct ovl_dir_file *od; -+ enum ovl_path_type type; -+ -+ od = kzalloc(sizeof(struct ovl_dir_file), GFP_KERNEL); -+ if (!od) -+ return -ENOMEM; -+ -+ type = ovl_path_real(file->f_path.dentry, &realpath); -+ realfile = vfs_open(&realpath, file->f_flags, current_cred()); -+ if (IS_ERR(realfile)) { -+ kfree(od); -+ return PTR_ERR(realfile); -+ } -+ INIT_LIST_HEAD(&od->cache); -+ INIT_LIST_HEAD(&od->cursor); -+ od->is_cached = false; -+ od->realfile = realfile; -+ od->is_real = (type != OVL_PATH_MERGE); -+ file->private_data = od; -+ -+ return 0; -+} -+ -+static const struct file_operations ovl_dir_operations = { -+ .read = generic_read_dir, -+ .open = ovl_dir_open, -+ .readdir = ovl_readdir, -+ .llseek = ovl_dir_llseek, -+ .fsync = ovl_dir_fsync, -+ .release = ovl_dir_release, -+}; -+ -+static const struct inode_operations ovl_dir_inode_operations; -+ -+static void ovl_entry_free(struct rcu_head *head) -+{ -+ struct ovl_entry *oe = container_of(head, struct ovl_entry, rcu); -+ kfree(oe); -+} -+ -+static void ovl_dentry_release(struct dentry *dentry) -+{ -+ struct ovl_entry *oe = dentry->d_fsdata; -+ -+ if (oe) { -+ dput(oe->__upperdentry); -+ dput(oe->lowerdentry); -+ call_rcu(&oe->rcu, ovl_entry_free); -+ } -+} -+ -+static const struct dentry_operations ovl_dentry_operations = { -+ .d_release = ovl_dentry_release, -+}; -+ -+static struct dentry *ovl_lookup_real(struct dentry *dir, struct qstr *name) -+{ -+ struct dentry *dentry; -+ -+ mutex_lock(&dir->d_inode->i_mutex); -+ dentry = lookup_one_len(name->name, dir, name->len); -+ mutex_unlock(&dir->d_inode->i_mutex); -+ -+ if (IS_ERR(dentry)) { -+ if (PTR_ERR(dentry) == -ENOENT) -+ dentry = NULL; -+ } else if (!dentry->d_inode) { -+ dput(dentry); -+ dentry = NULL; -+ } -+ return dentry; -+} -+ -+static struct ovl_entry *ovl_alloc_entry(void) -+{ -+ return kzalloc(sizeof(struct ovl_entry), GFP_KERNEL); -+} -+ -+static struct inode *ovl_new_inode(struct super_block *sb, umode_t mode, -+ struct ovl_entry *oe); -+ -+static int ovl_whiteout(struct dentry *upperdir, struct dentry *dentry) -+{ -+ int err; -+ struct dentry *newdentry; -+ const struct cred *old_cred; -+ struct cred *override_cred; -+ -+ /* FIXME: recheck lower dentry to see if whiteout is really needed */ -+ -+ err = -ENOMEM; -+ override_cred = prepare_creds(); -+ if (!override_cred) -+ goto out; -+ -+ /* -+ * CAP_SYS_ADMIN for setxattr -+ * CAP_DAC_OVERRIDE for symlink creation -+ */ -+ cap_raise(override_cred->cap_effective, CAP_SYS_ADMIN); -+ cap_raise(override_cred->cap_effective, CAP_DAC_OVERRIDE); -+ override_cred->fsuid = 0; -+ override_cred->fsgid = 0; -+ old_cred = override_creds(override_cred); -+ -+ newdentry = lookup_one_len(dentry->d_name.name, upperdir, -+ dentry->d_name.len); -+ err = PTR_ERR(newdentry); -+ if (IS_ERR(newdentry)) -+ goto out_put_cred; -+ -+ /* Just been removed within the same locked region */ -+ WARN_ON(newdentry->d_inode); -+ -+ err = vfs_symlink(upperdir->d_inode, newdentry, ovl_whiteout_symlink); -+ if (err) -+ goto out_dput; -+ -+ ovl_dentry_version_inc(dentry->d_parent); -+ -+ err = vfs_setxattr(newdentry, ovl_whiteout_xattr, "y", 1, 0); -+ if (err) -+ vfs_unlink(upperdir->d_inode, newdentry); -+ -+out_dput: -+ dput(newdentry); -+out_put_cred: -+ revert_creds(old_cred); -+ put_cred(override_cred); -+out: -+ if (err) { -+ /* -+ * There's no way to recover from failure to whiteout. -+ * What should we do? Log a big fat error and... ? -+ */ -+ printk(KERN_ERR "overlayfs: ERROR - failed to whiteout '%s'\n", -+ dentry->d_name.name); -+ } -+ -+ return err; -+} -+ -+static struct dentry *ovl_lookup(struct inode *dir, struct dentry *dentry, -+ struct nameidata *nd) -+{ -+ struct ovl_entry *oe; -+ struct dentry *upperdir; -+ struct dentry *lowerdir; -+ struct dentry *upperdentry = NULL; -+ struct dentry *lowerdentry = NULL; -+ struct inode *inode = NULL; -+ int err; -+ -+ err = -ENOMEM; -+ oe = ovl_alloc_entry(); -+ if (!oe) -+ goto out; -+ -+ upperdir = ovl_dentry_upper(dentry->d_parent); -+ lowerdir = ovl_dentry_lower(dentry->d_parent); -+ -+ if (upperdir) { -+ upperdentry = ovl_lookup_real(upperdir, &dentry->d_name); -+ err = PTR_ERR(upperdentry); -+ if (IS_ERR(upperdentry)) -+ goto out_put_dir; -+ -+ if (lowerdir && upperdentry && -+ (S_ISLNK(upperdentry->d_inode->i_mode) || -+ S_ISDIR(upperdentry->d_inode->i_mode))) { -+ const struct cred *old_cred; -+ struct cred *override_cred; -+ -+ err = -ENOMEM; -+ override_cred = prepare_creds(); -+ if (!override_cred) -+ goto out_dput_upper; -+ -+ /* CAP_SYS_ADMIN needed for getxattr */ -+ cap_raise(override_cred->cap_effective, CAP_SYS_ADMIN); -+ old_cred = override_creds(override_cred); -+ -+ if (ovl_is_opaquedir(upperdentry)) { -+ oe->opaque = true; -+ } else if (ovl_is_whiteout(upperdentry)) { -+ dput(upperdentry); -+ upperdentry = NULL; -+ oe->opaque = true; -+ } -+ revert_creds(old_cred); -+ put_cred(override_cred); -+ } -+ } -+ if (lowerdir && !oe->opaque) { -+ lowerdentry = ovl_lookup_real(lowerdir, &dentry->d_name); -+ err = PTR_ERR(lowerdentry); -+ if (IS_ERR(lowerdentry)) -+ goto out_dput_upper; -+ } -+ -+ if (lowerdentry && upperdentry && -+ (!S_ISDIR(upperdentry->d_inode->i_mode) || -+ !S_ISDIR(lowerdentry->d_inode->i_mode))) { -+ dput(lowerdentry); -+ lowerdentry = NULL; -+ oe->opaque = true; -+ } -+ -+ if (lowerdentry || upperdentry) { -+ struct dentry *realdentry; -+ -+ realdentry = upperdentry ? upperdentry : lowerdentry; -+ err = -ENOMEM; -+ inode = ovl_new_inode(dir->i_sb, realdentry->d_inode->i_mode, oe); -+ if (!inode) -+ goto out_dput; -+ } -+ -+ if (upperdentry) -+ oe->__upperdentry = upperdentry; -+ -+ if (lowerdentry) -+ oe->lowerdentry = lowerdentry; -+ -+ dentry->d_fsdata = oe; -+ dentry->d_op = &ovl_dentry_operations; -+ d_add(dentry, inode); -+ -+ return NULL; -+ -+out_dput: -+ dput(lowerdentry); -+out_dput_upper: -+ dput(upperdentry); -+out_put_dir: -+ kfree(oe); -+out: -+ return ERR_PTR(err); -+} -+ -+static int ovl_copy_up_xattr(struct dentry *old, struct dentry *new) -+{ -+ ssize_t list_size, size; -+ char *buf, *name, *value; -+ int error; -+ -+ if (!old->d_inode->i_op->getxattr || -+ !new->d_inode->i_op->getxattr) -+ return 0; -+ -+ list_size = vfs_listxattr(old, NULL, 0); -+ if (list_size <= 0) { -+ if (list_size == -EOPNOTSUPP) -+ return 0; -+ return list_size; -+ } -+ -+ buf = kzalloc(list_size, GFP_KERNEL); -+ if (!buf) -+ return -ENOMEM; -+ -+ error = -ENOMEM; -+ value = kmalloc(XATTR_SIZE_MAX, GFP_KERNEL); -+ if (!value) -+ goto out; -+ -+ list_size = vfs_listxattr(old, buf, list_size); -+ if (list_size <= 0) { -+ error = list_size; -+ goto out_free_value; -+ } -+ -+ for (name = buf; name < (buf + list_size); name += strlen(name) + 1) { -+ size = vfs_getxattr(old, name, value, XATTR_SIZE_MAX); -+ if (size <= 0) { -+ error = size; -+ goto out_free_value; -+ } -+ error = vfs_setxattr(new, name, value, size, 0); -+ if (error) -+ goto out_free_value; -+ } -+ -+out_free_value: -+ kfree(value); -+out: -+ kfree(buf); -+ return error; -+} -+ -+static int ovl_copy_up_data(struct path *old, struct path *new, loff_t len) -+{ -+ struct file *old_file; -+ struct file *new_file; -+ int error = 0; -+ -+ if (len == 0) -+ return 0; -+ -+ old_file = vfs_open(old, O_RDONLY, current_cred()); -+ if (IS_ERR(old_file)) -+ return PTR_ERR(old_file); -+ -+ new_file = vfs_open(new, O_WRONLY, current_cred()); -+ if (IS_ERR(new_file)) { -+ error = PTR_ERR(new_file); -+ goto out_fput; -+ } -+ -+ /* FIXME: copy up sparse files efficiently */ -+ while (len) { -+ loff_t offset = new_file->f_pos; -+ size_t this_len = OVL_COPY_UP_CHUNK_SIZE; -+ long bytes; -+ -+ if (len < this_len) -+ this_len = len; -+ -+ if (signal_pending_state(TASK_KILLABLE, current)) { -+ error = -EINTR; -+ break; -+ } -+ -+ bytes = do_splice_direct(old_file, &offset, new_file, this_len, -+ SPLICE_F_MOVE); -+ if (bytes <= 0) { -+ error = bytes; -+ break; -+ } -+ -+ len -= bytes; -+ } -+ -+ fput(new_file); -+out_fput: -+ fput(old_file); -+ return error; -+} -+ -+static struct dentry *ovl_lookup_create(struct dentry *upperdir, -+ struct dentry *template) -+{ -+ int err; -+ struct dentry *newdentry; -+ struct qstr *name = &template->d_name; -+ -+ newdentry = lookup_one_len(name->name, upperdir, name->len); -+ if (IS_ERR(newdentry)) -+ return newdentry; -+ -+ if (newdentry->d_inode) { -+ const struct cred *old_cred; -+ struct cred *override_cred; -+ -+ /* No need to check whiteout if lower parent is non-existent */ -+ err = -EEXIST; -+ if (!ovl_dentry_lower(template->d_parent)) -+ goto out_dput; -+ -+ if (!S_ISLNK(newdentry->d_inode->i_mode)) -+ goto out_dput; -+ -+ err = -ENOMEM; -+ override_cred = prepare_creds(); -+ if (!override_cred) -+ goto out_dput; -+ -+ /* -+ * CAP_SYS_ADMIN for getxattr -+ * CAP_FOWNER for unlink in sticky directory -+ */ -+ cap_raise(override_cred->cap_effective, CAP_SYS_ADMIN); -+ cap_raise(override_cred->cap_effective, CAP_FOWNER); -+ old_cred = override_creds(override_cred); -+ -+ err = -EEXIST; -+ if (ovl_is_whiteout(newdentry)) -+ err = vfs_unlink(upperdir->d_inode, newdentry); -+ -+ revert_creds(old_cred); -+ put_cred(override_cred); -+ if (err) -+ goto out_dput; -+ -+ dput(newdentry); -+ newdentry = lookup_one_len(name->name, upperdir, name->len); -+ if (IS_ERR(newdentry)) { -+ ovl_whiteout(upperdir, template); -+ return newdentry; -+ } -+ -+ /* -+ * Whiteout just been successfully removed, parent -+ * i_mutex is still held, there's no way the lookup -+ * could return positive. -+ */ -+ WARN_ON(newdentry->d_inode); -+ } -+ -+ return newdentry; -+ -+out_dput: -+ dput(newdentry); -+ return ERR_PTR(err); -+} -+ -+static struct dentry *ovl_upper_create(struct dentry *upperdir, -+ struct dentry *dentry, -+ struct kstat *stat, const char *link) -+{ -+ int err; -+ struct dentry *newdentry; -+ struct inode *dir = upperdir->d_inode; -+ -+ newdentry = ovl_lookup_create(upperdir, dentry); -+ if (IS_ERR(newdentry)) -+ goto out; -+ -+ switch (stat->mode & S_IFMT) { -+ case S_IFREG: -+ err = vfs_create(dir, newdentry, stat->mode, NULL); -+ break; -+ -+ case S_IFDIR: -+ err = vfs_mkdir(dir, newdentry, stat->mode); -+ break; -+ -+ case S_IFCHR: -+ case S_IFBLK: -+ case S_IFIFO: -+ case S_IFSOCK: -+ err = vfs_mknod(dir, newdentry, stat->mode, stat->rdev); -+ break; -+ -+ case S_IFLNK: -+ err = vfs_symlink(dir, newdentry, link); -+ break; -+ -+ default: -+ err = -EPERM; -+ } -+ if (err) { -+ if (ovl_dentry_is_opaque(dentry)) -+ ovl_whiteout(upperdir, dentry); -+ dput(newdentry); -+ newdentry = ERR_PTR(err); -+ } -+ -+out: -+ return newdentry; -+ -+} -+ -+static char *ovl_read_symlink(struct dentry *realdentry) -+{ -+ int res; -+ char *buf; -+ struct inode *inode = realdentry->d_inode; -+ mm_segment_t old_fs; -+ -+ res = -EINVAL; -+ if (!inode->i_op->readlink) -+ goto err; -+ -+ res = -ENOMEM; -+ buf = (char *) __get_free_page(GFP_KERNEL); -+ if (!buf) -+ goto err; -+ -+ old_fs = get_fs(); -+ set_fs(get_ds()); -+ /* The cast to a user pointer is valid due to the set_fs() */ -+ res = inode->i_op->readlink(realdentry, -+ (char __user *)buf, PAGE_SIZE - 1); -+ set_fs(old_fs); -+ if (res < 0) { -+ free_page((unsigned long) buf); -+ goto err; -+ } -+ buf[res] = '\0'; -+ -+ return buf; -+ -+err: -+ return ERR_PTR(res); -+} -+ -+static int ovl_set_timestamps(struct dentry *upperdentry, struct kstat *stat) -+{ -+ struct iattr attr = { -+ .ia_valid = ATTR_ATIME | ATTR_MTIME | ATTR_ATIME_SET | ATTR_MTIME_SET, -+ .ia_atime = stat->atime, -+ .ia_mtime = stat->mtime, -+ }; -+ -+ return notify_change(upperdentry, &attr); -+} -+ -+static int ovl_set_mode(struct dentry *upperdentry, umode_t mode) -+{ -+ struct iattr attr = { -+ .ia_valid = ATTR_MODE, -+ .ia_mode = mode, -+ }; -+ -+ return notify_change(upperdentry, &attr); -+} -+ -+static int ovl_set_opaque(struct dentry *upperdentry) -+{ -+ int err; -+ const struct cred *old_cred; -+ struct cred *override_cred; -+ -+ override_cred = prepare_creds(); -+ if (!override_cred) -+ return -ENOMEM; -+ -+ /* CAP_SYS_ADMIN for setxattr of "trusted" namespace */ -+ cap_raise(override_cred->cap_effective, CAP_SYS_ADMIN); -+ old_cred = override_creds(override_cred); -+ err = vfs_setxattr(upperdentry, ovl_opaque_xattr, "y", 1, 0); -+ revert_creds(old_cred); -+ put_cred(override_cred); -+ -+ return err; -+} -+ -+static int ovl_remove_opaque(struct dentry *upperdentry) -+{ -+ int err; -+ const struct cred *old_cred; -+ struct cred *override_cred; -+ -+ override_cred = prepare_creds(); -+ if (!override_cred) -+ return -ENOMEM; -+ -+ /* CAP_SYS_ADMIN for removexattr of "trusted" namespace */ -+ cap_raise(override_cred->cap_effective, CAP_SYS_ADMIN); -+ old_cred = override_creds(override_cred); -+ err = vfs_removexattr(upperdentry, ovl_opaque_xattr); -+ revert_creds(old_cred); -+ put_cred(override_cred); -+ -+ return err; -+} -+ -+static int ovl_copy_up_locked(struct dentry *upperdir, struct dentry *dentry, -+ struct path *lowerpath, struct kstat *stat, -+ const char *link) -+{ -+ int err; -+ struct path newpath; -+ umode_t mode = stat->mode; -+ struct ovl_fs *ofs = dentry->d_sb->s_fs_info; -+ -+ /* Can't properly set mode on creation because of the umask */ -+ stat->mode &= S_IFMT; -+ -+ newpath.mnt = ofs->upper_mnt; -+ newpath.dentry = ovl_upper_create(upperdir, dentry, stat, link); -+ if (IS_ERR(newpath.dentry)) { -+ err = PTR_ERR(newpath.dentry); -+ -+ /* Already copied up? */ -+ if (err == -EEXIST && ovl_path_type(dentry) != OVL_PATH_LOWER) -+ return 0; -+ -+ return err; -+ } -+ -+ if (S_ISREG(stat->mode)) { -+ err = ovl_copy_up_data(lowerpath, &newpath, stat->size); -+ if (err) -+ goto err_remove; -+ } -+ -+ err = ovl_copy_up_xattr(lowerpath->dentry, newpath.dentry); -+ if (err) -+ goto err_remove; -+ -+ mutex_lock(&newpath.dentry->d_inode->i_mutex); -+ if (!S_ISLNK(stat->mode)) -+ err = ovl_set_mode(newpath.dentry, mode); -+ if (!err) -+ err = ovl_set_timestamps(newpath.dentry, stat); -+ mutex_unlock(&newpath.dentry->d_inode->i_mutex); -+ if (err) -+ goto err_remove; -+ -+ ovl_dentry_update(dentry, newpath.dentry); -+ -+ /* -+ * Easiest way to get rid of the lower dentry reference is to -+ * drop this dentry. This is neither needed nor possible for -+ * directories. -+ */ -+ if (!S_ISDIR(stat->mode)) -+ d_drop(dentry); -+ -+ return 0; -+ -+err_remove: -+ if (S_ISDIR(stat->mode)) -+ vfs_rmdir(upperdir->d_inode, newpath.dentry); -+ else -+ vfs_unlink(upperdir->d_inode, newpath.dentry); -+ -+ dput(newpath.dentry); -+ -+ return err; -+} -+ -+static int ovl_copy_up_one(struct dentry *parent, struct dentry *dentry, -+ struct path *lowerpath, struct kstat *stat) -+{ -+ int err; -+ struct kstat pstat; -+ struct path parentpath; -+ struct dentry *upperdir; -+ const struct cred *old_cred; -+ struct cred *override_cred; -+ char *link = NULL; -+ -+ ovl_path_upper(parent, &parentpath); -+ upperdir = parentpath.dentry; -+ -+ err = vfs_getattr(parentpath.mnt, parentpath.dentry, &pstat); -+ if (err) -+ return err; -+ -+ if (S_ISLNK(stat->mode)) { -+ link = ovl_read_symlink(lowerpath->dentry); -+ if (IS_ERR(link)) -+ return PTR_ERR(link); -+ } -+ -+ err = -ENOMEM; -+ override_cred = prepare_creds(); -+ if (!override_cred) -+ goto out_free_link; -+ -+ override_cred->fsuid = stat->uid; -+ override_cred->fsgid = stat->gid; -+ /* -+ * CAP_SYS_ADMIN for copying up extended attributes -+ * CAP_DAC_OVERRIDE for create -+ * CAP_FOWNER for chmod, timestamp update -+ * CAP_FSETID for chmod -+ * CAP_MKNOD for mknod -+ */ -+ cap_raise(override_cred->cap_effective, CAP_SYS_ADMIN); -+ cap_raise(override_cred->cap_effective, CAP_DAC_OVERRIDE); -+ cap_raise(override_cred->cap_effective, CAP_FOWNER); -+ cap_raise(override_cred->cap_effective, CAP_FSETID); -+ cap_raise(override_cred->cap_effective, CAP_MKNOD); -+ old_cred = override_creds(override_cred); -+ -+ mutex_lock_nested(&upperdir->d_inode->i_mutex, I_MUTEX_PARENT); -+ /* -+ * Using upper filesystem locking to protect against copy up -+ * racing with rename (rename means the copy up was already -+ * successful). -+ */ -+ if (dentry->d_parent != parent) { -+ WARN_ON((ovl_path_type(dentry) == OVL_PATH_LOWER)); -+ err = 0; -+ } else { -+ err = ovl_copy_up_locked(upperdir, dentry, lowerpath, -+ stat, link); -+ if (!err) { -+ /* Restore timestamps on parent (best effort) */ -+ ovl_set_timestamps(upperdir, &pstat); -+ } -+ } -+ -+ mutex_unlock(&upperdir->d_inode->i_mutex); -+ -+ revert_creds(old_cred); -+ put_cred(override_cred); -+ -+out_free_link: -+ if (link) -+ free_page((unsigned long) link); -+ -+ return err; -+} -+ -+static int ovl_copy_up(struct dentry *dentry) -+{ -+ int err; -+ -+ err = 0; -+ while (!err) { -+ struct dentry *next; -+ struct dentry *parent; -+ struct path lowerpath; -+ struct kstat stat; -+ enum ovl_path_type type = ovl_path_type(dentry); -+ -+ if (type != OVL_PATH_LOWER) -+ break; -+ -+ next = dget(dentry); -+ /* find the topmost dentry not yet copied up */ -+ for (;;) { -+ parent = dget_parent(next); -+ -+ type = ovl_path_type(parent); -+ if (type != OVL_PATH_LOWER) -+ break; -+ -+ dput(next); -+ next = parent; -+ } -+ -+ ovl_path_lower(next, &lowerpath); -+ err = vfs_getattr(lowerpath.mnt, lowerpath.dentry, &stat); -+ if (!err) -+ err = ovl_copy_up_one(parent, next, &lowerpath, &stat); -+ -+ dput(parent); -+ dput(next); -+ } -+ -+ return err; -+} -+ -+/* Optimize by not copying up the file first and truncating later */ -+static int ovl_copy_up_truncate(struct dentry *dentry, loff_t size) -+{ -+ int err; -+ struct kstat stat; -+ struct path lowerpath; -+ struct dentry *parent = dget_parent(dentry); -+ -+ err = ovl_copy_up(parent); -+ if (err) -+ goto out_dput_parent; -+ -+ ovl_path_lower(dentry, &lowerpath); -+ err = vfs_getattr(lowerpath.mnt, lowerpath.dentry, &stat); -+ if (err) -+ goto out_dput_parent; -+ -+ if (size < stat.size) -+ stat.size = size; -+ -+ err = ovl_copy_up_one(parent, dentry, &lowerpath, &stat); -+ -+out_dput_parent: -+ dput(parent); -+ return err; -+} -+ -+static int ovl_setattr(struct dentry *dentry, struct iattr *attr) -+{ -+ struct dentry *upperdentry; -+ int err; -+ -+ if ((attr->ia_valid & ATTR_SIZE) && !ovl_dentry_upper(dentry)) -+ err = ovl_copy_up_truncate(dentry, attr->ia_size); -+ else -+ err = ovl_copy_up(dentry); -+ if (err) -+ return err; -+ -+ upperdentry = ovl_dentry_upper(dentry); -+ -+ if (attr->ia_valid & (ATTR_KILL_SUID|ATTR_KILL_SGID)) -+ attr->ia_valid &= ~ATTR_MODE; -+ -+ mutex_lock(&upperdentry->d_inode->i_mutex); -+ err = notify_change(upperdentry, attr); -+ mutex_unlock(&upperdentry->d_inode->i_mutex); -+ -+ return err; -+} -+ -+static int ovl_getattr(struct vfsmount *mnt, struct dentry *dentry, -+ struct kstat *stat) -+{ -+ struct path realpath; -+ -+ ovl_path_real(dentry, &realpath); -+ return vfs_getattr(realpath.mnt, realpath.dentry, stat); -+} -+ -+static int ovl_dir_getattr(struct vfsmount *mnt, struct dentry *dentry, -+ struct kstat *stat) -+{ -+ int err; -+ enum ovl_path_type type; -+ struct path realpath; -+ -+ type = ovl_path_real(dentry, &realpath); -+ err = vfs_getattr(realpath.mnt, realpath.dentry, stat); -+ if (err) -+ return err; -+ -+ stat->dev = dentry->d_sb->s_dev; -+ stat->ino = dentry->d_inode->i_ino; -+ -+ /* -+ * It's probably not worth it to count subdirs to get the -+ * correct link count. nlink=1 seems to pacify 'find' and -+ * other utilities. -+ */ -+ if (type == OVL_PATH_MERGE) -+ stat->nlink = 1; -+ -+ return 0; -+} -+ -+static int ovl_permission(struct inode *inode, int mask, unsigned int flags) -+{ -+ struct ovl_entry *oe; -+ struct dentry *alias = NULL; -+ struct inode *realinode; -+ struct dentry *realdentry; -+ bool is_upper; -+ int err; -+ -+ if (S_ISDIR(inode->i_mode)) { -+ oe = inode->i_private; -+ } else if (flags & IPERM_FLAG_RCU) { -+ return -ECHILD; -+ } else { -+ /* -+ * For non-directories find an alias and get the info -+ * from there. -+ */ -+ spin_lock(&inode->i_lock); -+ if (WARN_ON(list_empty(&inode->i_dentry))) { -+ spin_unlock(&inode->i_lock); -+ return -ENOENT; -+ } -+ alias = list_entry(inode->i_dentry.next, struct dentry, d_alias); -+ dget(alias); -+ spin_unlock(&inode->i_lock); -+ oe = alias->d_fsdata; -+ } -+ -+ realdentry = ovl_upperdentry_dereference(oe); -+ is_upper = true; -+ if (!realdentry) { -+ realdentry = oe->lowerdentry; -+ is_upper = false; -+ } -+ -+ /* Careful in RCU walk mode */ -+ realinode = ACCESS_ONCE(realdentry->d_inode); -+ if (!realinode) { -+ WARN_ON(!(flags & IPERM_FLAG_RCU)); -+ return -ENOENT; -+ } -+ -+ if (mask & MAY_WRITE) { -+ umode_t mode = realinode->i_mode; -+ -+ /* -+ * Writes will always be redirected to upper layer, so -+ * ignore lower layer being read-only. -+ */ -+ err = -EROFS; -+ if (is_upper && IS_RDONLY(realinode) && -+ (S_ISREG(mode) || S_ISDIR(mode) || S_ISLNK(mode))) -+ goto out_dput; -+ -+ /* -+ * Nobody gets write access to an immutable file. -+ */ -+ err = -EACCES; -+ if (IS_IMMUTABLE(realinode)) -+ goto out_dput; -+ } -+ -+ if (realinode->i_op->permission) -+ err = realinode->i_op->permission(realinode, mask, flags); -+ else -+ err = generic_permission(realinode, mask, flags, -+ realinode->i_op->check_acl); -+out_dput: -+ dput(alias); -+ return err; -+} -+ -+static int ovl_create_object(struct dentry *dentry, int mode, dev_t rdev, -+ const char *link) -+{ -+ int err; -+ struct dentry *newdentry; -+ struct dentry *upperdir; -+ struct inode *inode; -+ struct kstat stat = { -+ .mode = mode, -+ .rdev = rdev, -+ }; -+ -+ err = -ENOMEM; -+ inode = ovl_new_inode(dentry->d_sb, mode, dentry->d_fsdata); -+ if (!inode) -+ goto out; -+ -+ err = ovl_copy_up(dentry->d_parent); -+ if (err) -+ goto out_iput; -+ -+ upperdir = ovl_dentry_upper(dentry->d_parent); -+ mutex_lock_nested(&upperdir->d_inode->i_mutex, I_MUTEX_PARENT); -+ -+ newdentry = ovl_upper_create(upperdir, dentry, &stat, link); -+ err = PTR_ERR(newdentry); -+ if (IS_ERR(newdentry)) -+ goto out_unlock; -+ -+ ovl_dentry_version_inc(dentry->d_parent); -+ if (ovl_dentry_is_opaque(dentry) && S_ISDIR(mode)) { -+ err = ovl_set_opaque(newdentry); -+ if (err) { -+ vfs_rmdir(upperdir->d_inode, newdentry); -+ ovl_whiteout(upperdir, dentry); -+ goto out_dput; -+ } -+ } -+ ovl_dentry_update(dentry, newdentry); -+ d_instantiate(dentry, inode); -+ inode = NULL; -+ newdentry = NULL; -+ err = 0; -+ -+out_dput: -+ dput(newdentry); -+out_unlock: -+ mutex_unlock(&upperdir->d_inode->i_mutex); -+out_iput: -+ iput(inode); -+out: -+ return err; -+} -+ -+static int ovl_create(struct inode *dir, struct dentry *dentry, int mode, -+ struct nameidata *nd) -+{ -+ return ovl_create_object(dentry, (mode & 07777) | S_IFREG, 0, NULL); -+} -+ -+static int ovl_mkdir(struct inode *dir, struct dentry *dentry, int mode) -+{ -+ return ovl_create_object(dentry, (mode & 07777) | S_IFDIR, 0, NULL); -+} -+ -+static int ovl_mknod(struct inode *dir, struct dentry *dentry, int mode, -+ dev_t rdev) -+{ -+ return ovl_create_object(dentry, mode, rdev, NULL); -+} -+ -+static int ovl_symlink(struct inode *dir, struct dentry *dentry, -+ const char *link) -+{ -+ return ovl_create_object(dentry, S_IFLNK, 0, link); -+} -+ -+struct ovl_link_data { -+ struct dentry *realdentry; -+ void *cookie; -+}; -+ -+static void *ovl_follow_link(struct dentry *dentry, struct nameidata *nd) -+{ -+ void *ret; -+ struct dentry *realdentry; -+ struct inode *realinode; -+ -+ realdentry = ovl_dentry_real(dentry); -+ realinode = realdentry->d_inode; -+ -+ if (WARN_ON(!realinode->i_op->follow_link)) -+ return ERR_PTR(-EPERM); -+ -+ ret = realinode->i_op->follow_link(realdentry, nd); -+ if (IS_ERR(ret)) -+ return ret; -+ -+ if (realinode->i_op->put_link) { -+ struct ovl_link_data *data; -+ -+ data = kmalloc(sizeof(struct ovl_link_data), GFP_KERNEL); -+ if (!data) { -+ realinode->i_op->put_link(realdentry, nd, ret); -+ return ERR_PTR(-ENOMEM); -+ } -+ data->realdentry = realdentry; -+ data->cookie = ret; -+ -+ return data; -+ } else { -+ return NULL; -+ } -+} -+ -+static void ovl_put_link(struct dentry *dentry, struct nameidata *nd, void *c) -+{ -+ struct inode *realinode; -+ struct ovl_link_data *data = c; -+ -+ if (!data) -+ return; -+ -+ realinode = data->realdentry->d_inode; -+ realinode->i_op->put_link(data->realdentry, nd, data->cookie); -+ kfree(data); -+} -+ -+static int ovl_readlink(struct dentry *dentry, char __user *buf, int bufsiz) -+{ -+ struct path realpath; -+ struct inode *realinode; -+ -+ ovl_path_real(dentry, &realpath); -+ realinode = realpath.dentry->d_inode; -+ -+ if (!realinode->i_op->readlink) -+ return -EINVAL; -+ -+ touch_atime(realpath.mnt, realpath.dentry); -+ -+ return realinode->i_op->readlink(realpath.dentry, buf, bufsiz); -+} -+ -+static int ovl_do_remove(struct dentry *dentry, bool is_dir) -+{ -+ int err; -+ enum ovl_path_type type; -+ struct path realpath; -+ struct dentry *upperdir; -+ -+ err = ovl_copy_up(dentry->d_parent); -+ if (err) -+ return err; -+ -+ upperdir = ovl_dentry_upper(dentry->d_parent); -+ mutex_lock_nested(&upperdir->d_inode->i_mutex, I_MUTEX_PARENT); -+ type = ovl_path_real(dentry, &realpath); -+ if (type != OVL_PATH_LOWER) { -+ err = -ESTALE; -+ if (realpath.dentry->d_parent != upperdir) -+ goto out_d_drop; -+ -+ if (is_dir) -+ err = vfs_rmdir(upperdir->d_inode, realpath.dentry); -+ else -+ err = vfs_unlink(upperdir->d_inode, realpath.dentry); -+ if (err) -+ goto out_d_drop; -+ -+ ovl_dentry_version_inc(dentry->d_parent); -+ } -+ -+ if (type != OVL_PATH_UPPER || ovl_dentry_is_opaque(dentry)) -+ err = ovl_whiteout(upperdir, dentry); -+ -+ /* -+ * Keeping this dentry hashed would mean having to release -+ * upperpath/lowerpath, which could only be done if we are the -+ * sole user of this dentry. Too tricky... Just unhash for -+ * now. -+ */ -+out_d_drop: -+ d_drop(dentry); -+ mutex_unlock(&upperdir->d_inode->i_mutex); -+ -+ return err; -+} -+ -+static int ovl_unlink(struct inode *dir, struct dentry *dentry) -+{ -+ return ovl_do_remove(dentry, false); -+} -+ -+static int ovl_check_empty_dir(struct dentry *dentry, struct list_head *list) -+{ -+ int err; -+ struct path lowerpath; -+ struct path upperpath; -+ struct ovl_cache_entry *p; -+ struct ovl_readdir_data rdd = { .list = list }; -+ -+ ovl_path_upper(dentry, &upperpath); -+ ovl_path_lower(dentry, &lowerpath); -+ -+ err = ovl_dir_read_merged(&upperpath, &lowerpath, &rdd); -+ if (err) -+ return err; -+ -+ err = 0; -+ -+ list_for_each_entry(p, list, l_node) { -+ if (p->is_whiteout) -+ continue; -+ -+ if (p->name[0] == '.') { -+ if (p->len == 1) -+ continue; -+ if (p->len == 2 && p->name[1] == '.') -+ continue; -+ } -+ err = -ENOTEMPTY; -+ break; -+ } -+ -+ return err; -+} -+ -+static int ovl_remove_whiteouts(struct dentry *dir, struct list_head *list) -+{ -+ struct path upperpath; -+ struct dentry *upperdir; -+ struct ovl_cache_entry *p; -+ const struct cred *old_cred; -+ struct cred *override_cred; -+ int ret = 0; -+ -+ ovl_path_upper(dir, &upperpath); -+ upperdir = upperpath.dentry; -+ -+ override_cred = prepare_creds(); -+ if (!override_cred) -+ return -ENOMEM; -+ -+ /* -+ * CAP_DAC_OVERRIDE for lookup and unlink -+ */ -+ cap_raise(override_cred->cap_effective, CAP_DAC_OVERRIDE); -+ old_cred = override_creds(override_cred); -+ -+ mutex_lock(&upperdir->d_inode->i_mutex); -+ list_for_each_entry(p, list, l_node) { -+ if (p->is_whiteout) { -+ struct dentry *dentry; -+ -+ dentry = lookup_one_len(p->name, upperdir, p->len); -+ if (IS_ERR(dentry)) { -+ ret = PTR_ERR(dentry); -+ break; -+ } -+ ret = vfs_unlink(upperdir->d_inode, dentry); -+ dput(dentry); -+ if (ret) -+ break; -+ } -+ } -+ mutex_unlock(&upperdir->d_inode->i_mutex); -+ -+ revert_creds(old_cred); -+ put_cred(override_cred); -+ -+ return ret; -+} -+ -+static int ovl_check_empty_and_clear(struct dentry *dentry, -+ enum ovl_path_type type) -+{ -+ int err; -+ LIST_HEAD(list); -+ -+ err = ovl_check_empty_dir(dentry, &list); -+ if (!err && type == OVL_PATH_MERGE) -+ err = ovl_remove_whiteouts(dentry, &list); -+ -+ ovl_cache_free(&list); -+ -+ return err; -+} -+ -+static int ovl_rmdir(struct inode *dir, struct dentry *dentry) -+{ -+ int err; -+ enum ovl_path_type type; -+ -+ type = ovl_path_type(dentry); -+ if (type != OVL_PATH_UPPER) { -+ err = ovl_check_empty_and_clear(dentry, type); -+ if (err) -+ return err; -+ } -+ -+ return ovl_do_remove(dentry, true); -+} -+ -+static int ovl_link(struct dentry *old, struct inode *newdir, -+ struct dentry *new) -+{ -+ int err; -+ struct dentry *olddentry; -+ struct dentry *newdentry; -+ struct dentry *upperdir; -+ -+ err = ovl_copy_up(old); -+ if (err) -+ goto out; -+ -+ err = ovl_copy_up(new->d_parent); -+ if (err) -+ goto out; -+ -+ upperdir = ovl_dentry_upper(new->d_parent); -+ mutex_lock_nested(&upperdir->d_inode->i_mutex, I_MUTEX_PARENT); -+ newdentry = ovl_lookup_create(upperdir, new); -+ err = PTR_ERR(newdentry); -+ if (IS_ERR(newdentry)) -+ goto out_unlock; -+ -+ olddentry = ovl_dentry_upper(old); -+ err = vfs_link(olddentry, upperdir->d_inode, newdentry); -+ if (!err) { -+ ovl_dentry_version_inc(new->d_parent); -+ ovl_dentry_update(new, newdentry); -+ -+ ihold(old->d_inode); -+ d_instantiate(new, old->d_inode); -+ } else { -+ if (ovl_dentry_is_opaque(new)) -+ ovl_whiteout(upperdir, new); -+ dput(newdentry); -+ } -+out_unlock: -+ mutex_unlock(&upperdir->d_inode->i_mutex); -+out: -+ return err; -+ -+} -+ -+static int ovl_rename(struct inode *olddir, struct dentry *old, -+ struct inode *newdir, struct dentry *new) -+{ -+ int err; -+ enum ovl_path_type old_type; -+ struct dentry *old_upperdir; -+ struct dentry *new_upperdir; -+ struct dentry *olddentry; -+ struct dentry *newdentry; -+ struct dentry *trap; -+ bool old_opaque; -+ bool new_opaque; -+ bool is_dir = S_ISDIR(old->d_inode->i_mode); -+ -+ /* Don't copy up directory trees */ -+ old_type = ovl_path_type(old); -+ if (old_type != OVL_PATH_UPPER && is_dir) -+ return -EXDEV; -+ -+ if (new->d_inode) { -+ enum ovl_path_type new_type; -+ -+ new_type = ovl_path_type(new); -+ -+ if (new_type == OVL_PATH_LOWER && old_type == OVL_PATH_LOWER) { -+ if (ovl_dentry_lower(old)->d_inode == -+ ovl_dentry_lower(new)->d_inode) -+ return 0; -+ } -+ if (new_type != OVL_PATH_LOWER && old_type != OVL_PATH_LOWER) { -+ if (ovl_dentry_upper(old)->d_inode == -+ ovl_dentry_upper(new)->d_inode) -+ return 0; -+ } -+ -+ if (new_type != OVL_PATH_UPPER && -+ S_ISDIR(new->d_inode->i_mode)) { -+ err = ovl_check_empty_and_clear(new, new_type); -+ if (err) -+ return err; -+ } -+ } -+ -+ err = ovl_copy_up(old); -+ if (err) -+ return err; -+ -+ err = ovl_copy_up(new->d_parent); -+ if (err) -+ return err; -+ -+ old_upperdir = ovl_dentry_upper(old->d_parent); -+ new_upperdir = ovl_dentry_upper(new->d_parent); -+ -+ trap = lock_rename(new_upperdir, old_upperdir); -+ -+ olddentry = ovl_dentry_upper(old); -+ newdentry = ovl_dentry_upper(new); -+ if (newdentry) { -+ dget(newdentry); -+ } else { -+ newdentry = ovl_lookup_create(new_upperdir, new); -+ err = PTR_ERR(newdentry); -+ if (IS_ERR(newdentry)) -+ goto out_unlock; -+ } -+ -+ err = -ESTALE; -+ if (olddentry->d_parent != old_upperdir) -+ goto out_dput; -+ if (newdentry->d_parent != new_upperdir) -+ goto out_dput; -+ if (olddentry == trap) -+ goto out_dput; -+ if (newdentry == trap) -+ goto out_dput; -+ -+ old_opaque = ovl_dentry_is_opaque(old); -+ new_opaque = ovl_dentry_is_opaque(new) || -+ ovl_path_type(new) != OVL_PATH_UPPER; -+ -+ if (is_dir && !old_opaque && new_opaque) { -+ err = ovl_set_opaque(olddentry); -+ if (err) -+ goto out_dput; -+ } -+ -+ err = vfs_rename(old_upperdir->d_inode, olddentry, -+ new_upperdir->d_inode, newdentry); -+ -+ if (err) { -+ if (ovl_dentry_is_opaque(new)) -+ ovl_whiteout(new_upperdir, new); -+ if (is_dir && !old_opaque && new_opaque) -+ ovl_remove_opaque(olddentry); -+ goto out_dput; -+ } -+ -+ if (old_type != OVL_PATH_UPPER || old_opaque) -+ err = ovl_whiteout(old_upperdir, old); -+ if (is_dir && old_opaque && !new_opaque) -+ ovl_remove_opaque(olddentry); -+ -+ if (old_opaque != new_opaque) -+ ovl_dentry_set_opaque(old, new_opaque); -+ -+ ovl_dentry_version_inc(old->d_parent); -+ ovl_dentry_version_inc(new->d_parent); -+ -+out_dput: -+ dput(newdentry); -+out_unlock: -+ unlock_rename(new_upperdir, old_upperdir); -+ return err; -+} -+ -+static bool ovl_is_private_xattr(const char *name) -+{ -+ return strncmp(name, "trusted.overlay.", 14) == 0; -+} -+ -+static int ovl_setxattr(struct dentry *dentry, const char *name, -+ const void *value, size_t size, int flags) -+{ -+ int err; -+ struct dentry *upperdentry; -+ -+ if (ovl_is_private_xattr(name)) -+ return -EPERM; -+ -+ err = ovl_copy_up(dentry); -+ if (err) -+ return err; -+ -+ upperdentry = ovl_dentry_upper(dentry); -+ return vfs_setxattr(upperdentry, name, value, size, flags); -+} -+ -+static ssize_t ovl_getxattr(struct dentry *dentry, const char *name, -+ void *value, size_t size) -+{ -+ if (ovl_path_type(dentry->d_parent) == OVL_PATH_MERGE && -+ ovl_is_private_xattr(name)) -+ return -ENODATA; -+ -+ return vfs_getxattr(ovl_dentry_real(dentry), name, value, size); -+} -+ -+static ssize_t ovl_listxattr(struct dentry *dentry, char *list, size_t size) -+{ -+ ssize_t res; -+ int off; -+ -+ res = vfs_listxattr(ovl_dentry_real(dentry), list, size); -+ if (res <= 0 || size == 0) -+ return res; -+ -+ if (ovl_path_type(dentry->d_parent) != OVL_PATH_MERGE) -+ return res; -+ -+ /* filter out private xattrs */ -+ for (off = 0; off < res;) { -+ char *s = list + off; -+ size_t slen = strlen(s) + 1; -+ -+ BUG_ON(off + slen > res); -+ -+ if (ovl_is_private_xattr(s)) { -+ res -= slen; -+ memmove(s, s + slen, res - off); -+ } else { -+ off += slen; -+ } -+ } -+ -+ return res; -+} -+ -+static int ovl_removexattr(struct dentry *dentry, const char *name) -+{ -+ int err; -+ struct path realpath; -+ enum ovl_path_type type; -+ -+ if (ovl_path_type(dentry->d_parent) == OVL_PATH_MERGE && -+ ovl_is_private_xattr(name)) -+ return -ENODATA; -+ -+ type = ovl_path_real(dentry, &realpath); -+ if (type == OVL_PATH_LOWER) { -+ err = vfs_getxattr(realpath.dentry, name, NULL, 0); -+ if (err < 0) -+ return err; -+ -+ err = ovl_copy_up(dentry); -+ if (err) -+ return err; -+ -+ ovl_path_upper(dentry, &realpath); -+ } -+ -+ return vfs_removexattr(realpath.dentry, name); -+} -+ -+static bool ovl_open_need_copy_up(int flags, enum ovl_path_type type, -+ struct dentry *realdentry) -+{ -+ if (type != OVL_PATH_LOWER) -+ return false; -+ -+ if (special_file(realdentry->d_inode->i_mode)) -+ return false; -+ -+ if (!(OPEN_FMODE(flags) & FMODE_WRITE) && !(flags & O_TRUNC)) -+ return false; -+ -+ return true; -+} -+ -+static struct file *ovl_open(struct dentry *dentry, int flags, -+ const struct cred *cred) -+{ -+ int err; -+ struct path realpath; -+ enum ovl_path_type type; -+ -+ type = ovl_path_real(dentry, &realpath); -+ if (ovl_open_need_copy_up(flags, type, realpath.dentry)) { -+ if (flags & O_TRUNC) -+ err = ovl_copy_up_truncate(dentry, 0); -+ else -+ err = ovl_copy_up(dentry); -+ if (err) -+ return ERR_PTR(err); -+ -+ ovl_path_upper(dentry, &realpath); -+ } -+ -+ return vfs_open(&realpath, flags, cred); -+} -+ -+static const struct inode_operations ovl_dir_inode_operations = { -+ .lookup = ovl_lookup, -+ .mkdir = ovl_mkdir, -+ .symlink = ovl_symlink, -+ .unlink = ovl_unlink, -+ .rmdir = ovl_rmdir, -+ .rename = ovl_rename, -+ .link = ovl_link, -+ .setattr = ovl_setattr, -+ .create = ovl_create, -+ .mknod = ovl_mknod, -+ .permission = ovl_permission, -+ .getattr = ovl_dir_getattr, -+ .setxattr = ovl_setxattr, -+ .getxattr = ovl_getxattr, -+ .listxattr = ovl_listxattr, -+ .removexattr = ovl_removexattr, -+}; -+ -+static const struct inode_operations ovl_file_inode_operations = { -+ .setattr = ovl_setattr, -+ .permission = ovl_permission, -+ .getattr = ovl_getattr, -+ .setxattr = ovl_setxattr, -+ .getxattr = ovl_getxattr, -+ .listxattr = ovl_listxattr, -+ .removexattr = ovl_removexattr, -+ .open = ovl_open, -+}; -+ -+static const struct inode_operations ovl_symlink_inode_operations = { -+ .setattr = ovl_setattr, -+ .follow_link = ovl_follow_link, -+ .put_link = ovl_put_link, -+ .readlink = ovl_readlink, -+ .getattr = ovl_getattr, -+ .setxattr = ovl_setxattr, -+ .getxattr = ovl_getxattr, -+ .listxattr = ovl_listxattr, -+ .removexattr = ovl_removexattr, -+}; -+ -+static struct inode *ovl_new_inode(struct super_block *sb, umode_t mode, -+ struct ovl_entry *oe) -+{ -+ struct inode *inode; -+ -+ inode = new_inode(sb); -+ if (!inode) -+ return NULL; -+ -+ mode &= S_IFMT; -+ -+ inode->i_ino = get_next_ino(); -+ inode->i_mode = mode; -+ inode->i_flags |= S_NOATIME | S_NOCMTIME; -+ -+ switch (mode) { -+ case S_IFDIR: -+ inode->i_private = oe; -+ inode->i_op = &ovl_dir_inode_operations; -+ inode->i_fop = &ovl_dir_operations; -+ break; -+ -+ case S_IFLNK: -+ inode->i_op = &ovl_symlink_inode_operations; -+ break; -+ -+ case S_IFREG: -+ case S_IFSOCK: -+ case S_IFBLK: -+ case S_IFCHR: -+ case S_IFIFO: -+ inode->i_op = &ovl_file_inode_operations; -+ break; -+ -+ default: -+ WARN(1, "illegal file type: %i\n", mode); -+ inode = NULL; -+ } -+ -+ return inode; -+ -+} -+ -+static void ovl_put_super(struct super_block *sb) -+{ -+ struct ovl_fs *ufs = sb->s_fs_info; -+ -+ if (!(sb->s_flags & MS_RDONLY)) -+ mnt_drop_write(ufs->upper_mnt); -+ -+ mntput(ufs->upper_mnt); -+ mntput(ufs->lower_mnt); -+ -+ kfree(ufs); -+} -+ -+static int ovl_remount_fs(struct super_block *sb, int *flagsp, char *data) -+{ -+ int flags = *flagsp; -+ struct ovl_fs *ufs = sb->s_fs_info; -+ -+ /* When remounting rw or ro, we need to adjust the write access to the -+ * upper fs. -+ */ -+ if (((flags ^ sb->s_flags) & MS_RDONLY) == 0) -+ /* No change to readonly status */ -+ return 0; -+ -+ if (flags & MS_RDONLY) { -+ mnt_drop_write(ufs->upper_mnt); -+ return 0; -+ } else -+ return mnt_want_write(ufs->upper_mnt); -+} -+ -+/** -+ * ovl_statfs -+ * @sb: The overlayfs super block -+ * @buf: The struct kstatfs to fill in with stats -+ * -+ * Get the filesystem statistics. As writes always target the upper layer -+ * filesystem pass the statfs to the same filesystem. -+ */ -+static int ovl_statfs(struct dentry *dentry, struct kstatfs *buf) -+{ -+ struct dentry *root_dentry = dentry->d_sb->s_root; -+ struct path path; -+ ovl_path_upper(root_dentry, &path); -+ -+ if (!path.dentry->d_sb->s_op->statfs) -+ return -ENOSYS; -+ return path.dentry->d_sb->s_op->statfs(path.dentry, buf); -+} -+ -+static const struct super_operations ovl_super_operations = { -+ .put_super = ovl_put_super, -+ .remount_fs = ovl_remount_fs, -+ .statfs = ovl_statfs, -+}; -+ -+struct ovl_config { -+ char *lowerdir; -+ char *upperdir; -+}; -+ -+enum { -+ Opt_lowerdir, -+ Opt_upperdir, -+ Opt_err, -+}; -+ -+static const match_table_t ovl_tokens = { -+ {Opt_lowerdir, "lowerdir=%s"}, -+ {Opt_upperdir, "upperdir=%s"}, -+ {Opt_err, NULL} -+}; -+ -+static int ovl_parse_opt(char *opt, struct ovl_config *config) -+{ -+ char *p; -+ -+ config->upperdir = NULL; -+ config->lowerdir = NULL; -+ -+ while ((p = strsep(&opt, ",")) != NULL) { -+ int token; -+ substring_t args[MAX_OPT_ARGS]; -+ -+ if (!*p) -+ continue; -+ -+ token = match_token(p, ovl_tokens, args); -+ switch (token) { -+ case Opt_upperdir: -+ kfree(config->upperdir); -+ config->upperdir = match_strdup(&args[0]); -+ if (!config->upperdir) -+ return -ENOMEM; -+ break; -+ -+ case Opt_lowerdir: -+ kfree(config->lowerdir); -+ config->lowerdir = match_strdup(&args[0]); -+ if (!config->lowerdir) -+ return -ENOMEM; -+ break; -+ -+ default: -+ return -EINVAL; -+ } -+ } -+ return 0; -+} -+ -+static int ovl_fill_super(struct super_block *sb, void *data, int silent) -+{ -+ struct path lowerpath; -+ struct path upperpath; -+ struct inode *root_inode; -+ struct dentry *root_dentry; -+ struct ovl_entry *oe; -+ struct ovl_fs *ufs; -+ struct ovl_config config; -+ int err; -+ -+ err = ovl_parse_opt((char *) data, &config); -+ if (err) -+ goto out; -+ -+ err = -EINVAL; -+ if (!config.upperdir || !config.lowerdir) { -+ printk(KERN_ERR "overlayfs: missing upperdir or lowerdir\n"); -+ goto out_free_config; -+ } -+ -+ err = -ENOMEM; -+ ufs = kmalloc(sizeof(struct ovl_fs), GFP_KERNEL); -+ if (!ufs) -+ goto out_free_config; -+ -+ oe = ovl_alloc_entry(); -+ if (oe == NULL) -+ goto out_free_ufs; -+ -+ root_inode = ovl_new_inode(sb, S_IFDIR, oe); -+ if (!root_inode) -+ goto out_free_oe; -+ -+ err = kern_path(config.upperdir, LOOKUP_FOLLOW, &upperpath); -+ if (err) -+ goto out_put_root; -+ -+ err = kern_path(config.lowerdir, LOOKUP_FOLLOW, &lowerpath); -+ if (err) -+ goto out_put_upperpath; -+ -+ err = -ENOTDIR; -+ if (!S_ISDIR(upperpath.dentry->d_inode->i_mode) || -+ !S_ISDIR(lowerpath.dentry->d_inode->i_mode)) -+ goto out_put_lowerpath; -+ -+ ufs->upper_mnt = clone_private_mount(&upperpath); -+ err = PTR_ERR(ufs->upper_mnt); -+ if (IS_ERR(ufs->upper_mnt)) { -+ printk(KERN_ERR "overlayfs: failed to clone upperpath\n"); -+ goto out_put_lowerpath; -+ } -+ -+ ufs->lower_mnt = clone_private_mount(&lowerpath); -+ err = PTR_ERR(ufs->lower_mnt); -+ if (IS_ERR(ufs->lower_mnt)) { -+ printk(KERN_ERR "overlayfs: failed to clone lowerpath\n"); -+ goto out_put_upper_mnt; -+ } -+ -+ if (!(sb->s_flags & MS_RDONLY)) { -+ err = mnt_want_write(ufs->upper_mnt); -+ if (err) -+ goto out_put_lower_mnt; -+ } -+ -+ err = -ENOMEM; -+ root_dentry = d_alloc_root(root_inode); -+ if (!root_dentry) -+ goto out_drop_write; -+ -+ mntput(upperpath.mnt); -+ mntput(lowerpath.mnt); -+ -+ oe->__upperdentry = upperpath.dentry; -+ oe->lowerdentry = lowerpath.dentry; -+ -+ root_dentry->d_fsdata = oe; -+ root_dentry->d_op = &ovl_dentry_operations; -+ -+ sb->s_op = &ovl_super_operations; -+ sb->s_root = root_dentry; -+ sb->s_fs_info = ufs; -+ -+ return 0; -+ -+out_drop_write: -+ if (!(sb->s_flags & MS_RDONLY)) -+ mnt_drop_write(ufs->upper_mnt); -+out_put_lower_mnt: -+ mntput(ufs->lower_mnt); -+out_put_upper_mnt: -+ mntput(ufs->upper_mnt); -+out_put_lowerpath: -+ path_put(&lowerpath); -+out_put_upperpath: -+ path_put(&upperpath); -+out_put_root: -+ iput(root_inode); -+out_free_oe: -+ kfree(oe); -+out_free_ufs: -+ kfree(ufs); -+out_free_config: -+ kfree(config.lowerdir); -+ kfree(config.upperdir); -+out: -+ return err; -+} -+ -+static struct dentry *ovl_mount(struct file_system_type *fs_type, int flags, -+ const char *dev_name, void *raw_data) -+{ -+ return mount_nodev(fs_type, flags, raw_data, ovl_fill_super); -+} -+ -+static struct file_system_type ovl_fs_type = { -+ .owner = THIS_MODULE, -+ .name = "overlayfs", -+ .mount = ovl_mount, -+ .kill_sb = kill_anon_super, -+}; -+ -+static int __init ovl_init(void) -+{ -+ return register_filesystem(&ovl_fs_type); -+} -+ -+static void __exit ovl_exit(void) -+{ -+ unregister_filesystem(&ovl_fs_type); -+} -+ -+module_init(ovl_init); -+module_exit(ovl_exit); ---- a/fs/Kconfig -+++ b/fs/Kconfig -@@ -63,6 +63,7 @@ source "fs/quota/Kconfig" - - source "fs/autofs4/Kconfig" - source "fs/fuse/Kconfig" -+source "fs/overlayfs/Kconfig" - - config CUSE - tristate "Character device in Userspace support" ---- a/fs/Makefile -+++ b/fs/Makefile -@@ -105,6 +105,7 @@ obj-$(CONFIG_QNX4FS_FS) += qnx4/ - obj-$(CONFIG_AUTOFS4_FS) += autofs4/ - obj-$(CONFIG_ADFS_FS) += adfs/ - obj-$(CONFIG_FUSE_FS) += fuse/ -+obj-$(CONFIG_OVERLAYFS_FS) += overlayfs/ - obj-$(CONFIG_UDF_FS) += udf/ - obj-$(CONFIG_SUN_OPENPROMFS) += openpromfs/ - obj-$(CONFIG_OMFS_FS) += omfs/ ---- /dev/null -+++ b/fs/overlayfs/Kconfig -@@ -0,0 +1,4 @@ -+config OVERLAYFS_FS -+ tristate "Overlay filesystem support" -+ help -+ Add support for overlay filesystem. ---- /dev/null -+++ b/fs/overlayfs/Makefile -@@ -0,0 +1,5 @@ -+# -+# Makefile for the overlay filesystem. -+# -+ -+obj-$(CONFIG_OVERLAYFS_FS) += overlayfs.o ---- /dev/null -+++ b/Documentation/filesystems/overlayfs.txt -@@ -0,0 +1,163 @@ -+Written by: Neil Brown -+ -+Overlay Filesystem -+================== -+ -+This document describes a prototype for a new approach to providing -+overlay-filesystem functionality in Linux (sometimes referred to as -+union-filesystems). An overlay-filesystem tries to present a -+filesystem which is the result over overlaying one filesystem on top -+of the other. -+ -+The result will inevitably fail to look exactly like a normal -+filesystem for various technical reasons. The expectation is that -+many use cases will be able to ignore these differences. -+ -+This approach is 'hybrid' because the objects that appear in the -+filesystem do not all appear to belong to that filesystem. In many -+cases an object accessed in the union will be indistinguishable -+from accessing the corresponding object from the original filesystem. -+This is most obvious from the 'st_dev' field returned by stat(2). -+ -+While directories will report an st_dev from the overlay-filesystem, -+all non-directory objects will report an st_dev from the lower or -+upper filesystem that is providing the object. Similarly st_ino will -+only be unique when combined with st_dev, and both of these can change -+over the lifetime of a non-directory object. Many applications and -+tools ignore these values and will not be affected. -+ -+Upper and Lower -+--------------- -+ -+An overlay filesystem combines two filesystems - an 'upper' filesystem -+and a 'lower' filesystem. When a name exists in both filesystems, the -+object in the 'upper' filesystem is visible while the object in the -+'lower' filesystem is either hidden or, in the case of directories, -+merged with the 'upper' object. -+ -+It would be more correct to refer to an upper and lower 'directory -+tree' rather than 'filesystem' as it is quite possible for both -+directory trees to be in the same filesystem and there is no -+requirement that the root of a filesystem be given for either upper or -+lower. -+ -+The lower filesystem can be any filesystem supported by Linux and does -+not need to be writable. The lower filesystem can even be another -+overlayfs. The upper filesystem will normally be writable and if it -+is it must support the creation of trusted.* extended attributes, and -+must provide valid d_type in readdir responses, at least for symbolic -+links - so NFS is not suitable. -+ -+A read-only overlay of two read-only filesystems may use any -+filesystem type. -+ -+Directories -+----------- -+ -+Overlaying mainly involved directories. If a given name appears in both -+upper and lower filesystems and refers to a non-directory in either, -+then the lower object is hidden - the name refers only to the upper -+object. -+ -+Where both upper and lower objects are directories, a merged directory -+is formed. -+ -+At mount time, the two directories given as mount options are combined -+into a merged directory. Then whenever a lookup is requested in such -+a merged directory, the lookup is performed in each actual directory -+and the combined result is cached in the dentry belonging to the overlay -+filesystem. If both actual lookups find directories, both are stored -+and a merged directory is created, otherwise only one is stored: the -+upper if it exists, else the lower. -+ -+Only the lists of names from directories are merged. Other content -+such as metadata and extended attributes are reported for the upper -+directory only. These attributes of the lower directory are hidden. -+ -+whiteouts and opaque directories -+-------------------------------- -+ -+In order to support rm and rmdir without changing the lower -+filesystem, an overlay filesystem needs to record in the upper filesystem -+that files have been removed. This is done using whiteouts and opaque -+directories (non-directories are always opaque). -+ -+The overlay filesystem uses extended attributes with a -+"trusted.overlay." prefix to record these details. -+ -+A whiteout is created as a symbolic link with target -+"(overlay-whiteout)" and with xattr "trusted.overlay.whiteout" set to "y". -+When a whiteout is found in the upper level of a merged directory, any -+matching name in the lower level is ignored, and the whiteout itself -+is also hidden. -+ -+A directory is made opaque by setting the xattr "trusted.overlay.opaque" -+to "y". Where the upper filesystem contains an opaque directory, any -+directory in the lower filesystem with the same name is ignored. -+ -+readdir -+------- -+ -+When a 'readdir' request is made on a merged directory, the upper and -+lower directories are each read and the name lists merged in the -+obvious way (upper is read first, then lower - entries that already -+exist are not re-added). This merged name list is cached in the -+'struct file' and so remains as long as the file is kept open. If the -+directory is opened and read by two processes at the same time, they -+will each have separate caches. A seekdir to the start of the -+directory (offset 0) followed by a readdir will cause the cache to be -+discarded and rebuilt. -+ -+This means that changes to the merged directory do not appear while a -+directory is being read. This is unlikely to be noticed by many -+programs. -+ -+seek offsets are assigned sequentially when the directories are read. -+Thus if -+ - read part of a directory -+ - remember an offset, and close the directory -+ - re-open the directory some time later -+ - seek to the remembered offset -+ -+there may be little correlation between the old and new locations in -+the list of filenames, particularly if anything has changed in the -+directory. -+ -+Readdir on directories that are not merged is simply handled by the -+underlying directory (upper or lower). -+ -+ -+Non-directories -+--------------- -+ -+Objects that are not directories (files, symlinks, device-special -+files etc.) are presented either from the upper or lower filesystem as -+appropriate. When a file in the lower filesystem is accessed in a way -+the requires write-access, such as opening for write access, changing -+some metadata etc., the file is first copied from the lower filesystem -+to the upper filesystem (copy_up). Note that creating a hard-link -+also requires copy_up, though of course creation of a symlink does -+not. -+ -+The copy_up process first makes sure that the containing directory -+exists in the upper filesystem - creating it and any parents as -+necessary. It then creates the object with the same metadata (owner, -+mode, mtime, symlink-target etc.) and then if the object is a file, the -+data is copied from the lower to the upper filesystem. Finally any -+extended attributes are copied up. -+ -+Once the copy_up is complete, the overlay filesystem simply -+provides direct access to the newly created file in the upper -+filesystem - future operations on the file are barely noticed by the -+overlay filesystem (though an operation on the name of the file such as -+rename or unlink will of course be noticed and handled). -+ -+Changes to underlying filesystems -+--------------------------------- -+ -+Offline changes, when the overlay is not mounted, are allowed to either -+the upper or the lower trees. -+ -+Changes to the underlying filesystems while part of a mounted overlay -+filesystem are not allowed. This is not yet enforced, but will be in -+the future. diff --git a/target/linux/generic/patches-2.6.39/210-darwin_scripts_include.patch b/target/linux/generic/patches-2.6.39/210-darwin_scripts_include.patch new file mode 100644 index 00000000000..0686a389735 --- /dev/null +++ b/target/linux/generic/patches-2.6.39/210-darwin_scripts_include.patch @@ -0,0 +1,78 @@ +--- a/scripts/kallsyms.c ++++ b/scripts/kallsyms.c +@@ -22,6 +22,35 @@ + #include + #include + #include ++#ifdef __APPLE__ ++/* Darwin has no memmem implementation, this one is ripped of the uClibc-0.9.28 source */ ++void *memmem (const void *haystack, size_t haystack_len, ++ const void *needle, size_t needle_len) ++{ ++ const char *begin; ++ const char *const last_possible ++ = (const char *) haystack + haystack_len - needle_len; ++ ++ if (needle_len == 0) ++ /* The first occurrence of the empty string is deemed to occur at ++ the beginning of the string. */ ++ return (void *) haystack; ++ ++ /* Sanity check, otherwise the loop might search through the whole ++ memory. */ ++ if (__builtin_expect (haystack_len < needle_len, 0)) ++ return NULL; ++ ++ for (begin = (const char *) haystack; begin <= last_possible; ++begin) ++ if (begin[0] == ((const char *) needle)[0] && ++ !memcmp ((const void *) &begin[1], ++ (const void *) ((const char *) needle + 1), ++ needle_len - 1)) ++ return (void *) begin; ++ ++ return NULL; ++} ++#endif + + #ifndef ARRAY_SIZE + #define ARRAY_SIZE(arr) (sizeof(arr) / sizeof(arr[0])) +--- a/scripts/kconfig/Makefile ++++ b/scripts/kconfig/Makefile +@@ -147,6 +147,9 @@ check-lxdialog := $(srctree)/$(src)/lxd + # we really need to do so. (Do not call gcc as part of make mrproper) + HOST_EXTRACFLAGS += $(shell $(CONFIG_SHELL) $(check-lxdialog) -ccflags) \ + -DLOCALE ++ifeq ($(shell uname -s),Darwin) ++HOST_LOADLIBES += -lncurses ++endif + + # =========================================================================== + # Shared Makefile for the various kconfig executables: +--- a/scripts/mod/mk_elfconfig.c ++++ b/scripts/mod/mk_elfconfig.c +@@ -1,7 +1,11 @@ + #include + #include + #include ++#ifndef __APPLE__ + #include ++#else ++#include "../../../../../tools/sstrip/include/elf.h" ++#endif + + int + main(int argc, char **argv) +--- a/scripts/mod/modpost.h ++++ b/scripts/mod/modpost.h +@@ -7,7 +7,11 @@ + #include + #include + #include ++#if !(defined(__APPLE__) || defined(__CYGWIN__)) + #include ++#else ++#include "../../../../../tools/sstrip/include/elf.h" ++#endif + + #include "elfconfig.h" + diff --git a/target/linux/generic/patches-2.6.39/211-stddef_include.patch b/target/linux/generic/patches-2.6.39/211-stddef_include.patch new file mode 100644 index 00000000000..7fe248d8d33 --- /dev/null +++ b/target/linux/generic/patches-2.6.39/211-stddef_include.patch @@ -0,0 +1,17 @@ +--- a/include/linux/stddef.h ++++ b/include/linux/stddef.h +@@ -16,6 +16,7 @@ enum { + false = 0, + true = 1 + }; ++#endif /* __KERNEL__ */ + + #undef offsetof + #ifdef __compiler_offsetof +@@ -23,6 +24,5 @@ enum { + #else + #define offsetof(TYPE, MEMBER) ((size_t) &((TYPE *)0)->MEMBER) + #endif +-#endif /* __KERNEL__ */ + + #endif diff --git a/target/linux/generic/patches-2.6.39/219-kobject_uevent.patch b/target/linux/generic/patches-2.6.39/219-kobject_uevent.patch deleted file mode 100644 index f15749fa178..00000000000 --- a/target/linux/generic/patches-2.6.39/219-kobject_uevent.patch +++ /dev/null @@ -1,32 +0,0 @@ ---- a/lib/kobject_uevent.c -+++ b/lib/kobject_uevent.c -@@ -49,6 +49,18 @@ static const char *kobject_actions[] = { - [KOBJ_OFFLINE] = "offline", - }; - -+u64 uevent_next_seqnum(void) -+{ -+ u64 seq; -+ -+ spin_lock(&sequence_lock); -+ seq = ++uevent_seqnum; -+ spin_unlock(&sequence_lock); -+ -+ return seq; -+} -+EXPORT_SYMBOL_GPL(uevent_next_seqnum); -+ - /** - * kobject_action_type - translate action string to numeric type - * -@@ -244,9 +256,7 @@ int kobject_uevent_env(struct kobject *k - kobj->state_remove_uevent_sent = 1; - - /* we will send an event, so request a new sequence number */ -- spin_lock(&sequence_lock); -- seq = ++uevent_seqnum; -- spin_unlock(&sequence_lock); -+ seq = uevent_next_seqnum(); - retval = add_uevent_var(env, "SEQNUM=%llu", (unsigned long long)seq); - if (retval) - goto exit; diff --git a/target/linux/generic/patches-2.6.39/220-module_exports.patch b/target/linux/generic/patches-2.6.39/220-module_exports.patch new file mode 100644 index 00000000000..8a95743a4b8 --- /dev/null +++ b/target/linux/generic/patches-2.6.39/220-module_exports.patch @@ -0,0 +1,119 @@ +--- a/include/asm-generic/vmlinux.lds.h ++++ b/include/asm-generic/vmlinux.lds.h +@@ -52,6 +52,27 @@ + #define LOAD_OFFSET 0 + #endif + ++#ifndef SYMTAB_KEEP_STR ++#define SYMTAB_KEEP_STR *(__ksymtab_strings.*) ++#define SYMTAB_DISCARD_STR ++#else ++#define SYMTAB_DISCARD_STR *(__ksymtab_strings.*) ++#endif ++ ++#ifndef SYMTAB_KEEP ++#define SYMTAB_KEEP *(__ksymtab.*) ++#define SYMTAB_DISCARD ++#else ++#define SYMTAB_DISCARD *(__ksymtab.*) ++#endif ++ ++#ifndef SYMTAB_KEEP_GPL ++#define SYMTAB_KEEP_GPL *(__ksymtab_gpl.*) ++#define SYMTAB_DISCARD_GPL ++#else ++#define SYMTAB_DISCARD_GPL *(__ksymtab_gpl.*) ++#endif ++ + #ifndef SYMBOL_PREFIX + #define VMLINUX_SYMBOL(sym) sym + #else +@@ -274,35 +295,35 @@ + /* Kernel symbol table: Normal symbols */ \ + __ksymtab : AT(ADDR(__ksymtab) - LOAD_OFFSET) { \ + VMLINUX_SYMBOL(__start___ksymtab) = .; \ +- *(__ksymtab) \ ++ SYMTAB_KEEP \ + VMLINUX_SYMBOL(__stop___ksymtab) = .; \ + } \ + \ + /* Kernel symbol table: GPL-only symbols */ \ + __ksymtab_gpl : AT(ADDR(__ksymtab_gpl) - LOAD_OFFSET) { \ + VMLINUX_SYMBOL(__start___ksymtab_gpl) = .; \ +- *(__ksymtab_gpl) \ ++ SYMTAB_KEEP_GPL \ + VMLINUX_SYMBOL(__stop___ksymtab_gpl) = .; \ + } \ + \ + /* Kernel symbol table: Normal unused symbols */ \ + __ksymtab_unused : AT(ADDR(__ksymtab_unused) - LOAD_OFFSET) { \ + VMLINUX_SYMBOL(__start___ksymtab_unused) = .; \ +- *(__ksymtab_unused) \ ++ *(__ksymtab_unused.*) \ + VMLINUX_SYMBOL(__stop___ksymtab_unused) = .; \ + } \ + \ + /* Kernel symbol table: GPL-only unused symbols */ \ + __ksymtab_unused_gpl : AT(ADDR(__ksymtab_unused_gpl) - LOAD_OFFSET) { \ + VMLINUX_SYMBOL(__start___ksymtab_unused_gpl) = .; \ +- *(__ksymtab_unused_gpl) \ ++ *(__ksymtab_unused_gpl.*) \ + VMLINUX_SYMBOL(__stop___ksymtab_unused_gpl) = .; \ + } \ + \ + /* Kernel symbol table: GPL-future-only symbols */ \ + __ksymtab_gpl_future : AT(ADDR(__ksymtab_gpl_future) - LOAD_OFFSET) { \ + VMLINUX_SYMBOL(__start___ksymtab_gpl_future) = .; \ +- *(__ksymtab_gpl_future) \ ++ *(__ksymtab_gpl_future.*) \ + VMLINUX_SYMBOL(__stop___ksymtab_gpl_future) = .; \ + } \ + \ +@@ -343,7 +364,7 @@ + \ + /* Kernel symbol table: strings */ \ + __ksymtab_strings : AT(ADDR(__ksymtab_strings) - LOAD_OFFSET) { \ +- *(__ksymtab_strings) \ ++ SYMTAB_KEEP_STR \ + } \ + \ + /* __*init sections */ \ +@@ -683,6 +704,9 @@ + EXIT_TEXT \ + EXIT_DATA \ + EXIT_CALL \ ++ SYMTAB_DISCARD \ ++ SYMTAB_DISCARD_GPL \ ++ SYMTAB_DISCARD_STR \ + *(.discard) \ + *(.discard.*) \ + } +--- a/include/linux/module.h ++++ b/include/linux/module.h +@@ -229,16 +229,24 @@ struct module_use { + #define __CRC_SYMBOL(sym, sec) + #endif + ++#ifdef MODULE ++#define __EXPORT_SUFFIX(sym) ++#else ++#define __EXPORT_SUFFIX(sym) "." #sym ++#endif ++ + /* For every exported symbol, place a struct in the __ksymtab section */ + #define __EXPORT_SYMBOL(sym, sec) \ + extern typeof(sym) sym; \ + __CRC_SYMBOL(sym, sec) \ + static const char __kstrtab_##sym[] \ +- __attribute__((section("__ksymtab_strings"), aligned(1))) \ ++ __attribute__((section("__ksymtab_strings" \ ++ __EXPORT_SUFFIX(sym)), aligned(1))) \ + = MODULE_SYMBOL_PREFIX #sym; \ + static const struct kernel_symbol __ksymtab_##sym \ + __used \ +- __attribute__((section("__ksymtab" sec), unused)) \ ++ __attribute__((section("__ksymtab" sec \ ++ __EXPORT_SUFFIX(sym)), unused)) \ + = { (unsigned long)&sym, __kstrtab_##sym } + + #define EXPORT_SYMBOL(sym) \ diff --git a/target/linux/generic/patches-2.6.39/220-sound_kconfig.patch b/target/linux/generic/patches-2.6.39/220-sound_kconfig.patch deleted file mode 100644 index fb3df254dcc..00000000000 --- a/target/linux/generic/patches-2.6.39/220-sound_kconfig.patch +++ /dev/null @@ -1,11 +0,0 @@ ---- a/sound/core/Kconfig -+++ b/sound/core/Kconfig -@@ -8,7 +8,7 @@ config SND_PCM - select GCD - - config SND_HWDEP -- tristate -+ tristate "Sound hardware support" - - config SND_RAWMIDI - tristate diff --git a/target/linux/generic/patches-2.6.39/222-partial_eraseblock_write.patch b/target/linux/generic/patches-2.6.39/222-partial_eraseblock_write.patch deleted file mode 100644 index 873c0d1cb17..00000000000 --- a/target/linux/generic/patches-2.6.39/222-partial_eraseblock_write.patch +++ /dev/null @@ -1,145 +0,0 @@ ---- a/drivers/mtd/mtdpart.c -+++ b/drivers/mtd/mtdpart.c -@@ -33,6 +33,8 @@ - #include - #include - -+#define MTD_ERASE_PARTIAL 0x8000 /* partition only covers parts of an erase block */ -+ - /* Our partition linked list */ - static LIST_HEAD(mtd_partitions); - static DEFINE_MUTEX(mtd_partitions_mutex); -@@ -256,13 +258,60 @@ static int part_erase(struct mtd_info *m - return -EROFS; - if (instr->addr >= mtd->size) - return -EINVAL; -+ -+ instr->partial_start = false; -+ if (mtd->flags & MTD_ERASE_PARTIAL) { -+ size_t readlen = 0; -+ u64 mtd_ofs; -+ -+ instr->erase_buf = kmalloc(part->master->erasesize, GFP_ATOMIC); -+ if (!instr->erase_buf) -+ return -ENOMEM; -+ -+ mtd_ofs = part->offset + instr->addr; -+ instr->erase_buf_ofs = do_div(mtd_ofs, part->master->erasesize); -+ -+ if (instr->erase_buf_ofs > 0) { -+ instr->addr -= instr->erase_buf_ofs; -+ ret = part->master->read(part->master, -+ instr->addr + part->offset, -+ part->master->erasesize, -+ &readlen, instr->erase_buf); -+ -+ instr->partial_start = true; -+ } else { -+ mtd_ofs = part->offset + part->mtd.size; -+ instr->erase_buf_ofs = part->master->erasesize - -+ do_div(mtd_ofs, part->master->erasesize); -+ -+ if (instr->erase_buf_ofs > 0) { -+ instr->len += instr->erase_buf_ofs; -+ ret = part->master->read(part->master, -+ part->offset + instr->addr + -+ instr->len - part->master->erasesize, -+ part->master->erasesize, &readlen, -+ instr->erase_buf); -+ } else { -+ ret = 0; -+ } -+ } -+ if (ret < 0) { -+ kfree(instr->erase_buf); -+ return ret; -+ } -+ -+ } -+ - instr->addr += part->offset; - ret = part->master->erase(part->master, instr); - if (ret) { - if (instr->fail_addr != MTD_FAIL_ADDR_UNKNOWN) - instr->fail_addr -= part->offset; - instr->addr -= part->offset; -+ if (mtd->flags & MTD_ERASE_PARTIAL) -+ kfree(instr->erase_buf); - } -+ - return ret; - } - -@@ -270,7 +319,25 @@ void mtd_erase_callback(struct erase_inf - { - if (instr->mtd->erase == part_erase) { - struct mtd_part *part = PART(instr->mtd); -+ size_t wrlen = 0; - -+ if (instr->mtd->flags & MTD_ERASE_PARTIAL) { -+ if (instr->partial_start) { -+ part->master->write(part->master, -+ instr->addr, instr->erase_buf_ofs, -+ &wrlen, instr->erase_buf); -+ instr->addr += instr->erase_buf_ofs; -+ } else { -+ instr->len -= instr->erase_buf_ofs; -+ part->master->write(part->master, -+ instr->addr + instr->len, -+ instr->erase_buf_ofs, &wrlen, -+ instr->erase_buf + -+ part->master->erasesize - -+ instr->erase_buf_ofs); -+ } -+ kfree(instr->erase_buf); -+ } - if (instr->fail_addr != MTD_FAIL_ADDR_UNKNOWN) - instr->fail_addr -= part->offset; - instr->addr -= part->offset; -@@ -529,18 +596,24 @@ static struct mtd_part *allocate_partiti - if ((slave->mtd.flags & MTD_WRITEABLE) && - mtd_mod_by_eb(slave->offset, &slave->mtd)) { - /* Doesn't start on a boundary of major erase size */ -- /* FIXME: Let it be writable if it is on a boundary of -- * _minor_ erase size though */ -- slave->mtd.flags &= ~MTD_WRITEABLE; -- printk(KERN_WARNING"mtd: partition \"%s\" doesn't start on an erase block boundary -- force read-only\n", -- part->name); -+ slave->mtd.flags |= MTD_ERASE_PARTIAL; -+ if (((u32) slave->mtd.size) > master->erasesize) -+ slave->mtd.flags &= ~MTD_WRITEABLE; -+ else -+ slave->mtd.erasesize = slave->mtd.size; - } - if ((slave->mtd.flags & MTD_WRITEABLE) && -- mtd_mod_by_eb(slave->mtd.size, &slave->mtd)) { -- slave->mtd.flags &= ~MTD_WRITEABLE; -- printk(KERN_WARNING"mtd: partition \"%s\" doesn't end on an erase block -- force read-only\n", -- part->name); -+ mtd_mod_by_eb(slave->offset + slave->mtd.size, &slave->mtd)) { -+ slave->mtd.flags |= MTD_ERASE_PARTIAL; -+ -+ if ((u32) slave->mtd.size > master->erasesize) -+ slave->mtd.flags &= ~MTD_WRITEABLE; -+ else -+ slave->mtd.erasesize = slave->mtd.size; - } -+ if ((slave->mtd.flags & (MTD_ERASE_PARTIAL|MTD_WRITEABLE)) == MTD_ERASE_PARTIAL) -+ printk(KERN_WARNING"mtd: partition \"%s\" must either start or end on erase block boundary or be smaller than an erase block -- forcing read-only\n", -+ part->name); - - slave->mtd.ecclayout = master->ecclayout; - if (master->block_isbad) { ---- a/include/linux/mtd/mtd.h -+++ b/include/linux/mtd/mtd.h -@@ -57,6 +57,10 @@ struct erase_info { - u_long priv; - u_char state; - struct erase_info *next; -+ -+ u8 *erase_buf; -+ u32 erase_buf_ofs; -+ bool partial_start; - }; - - struct mtd_erase_region_info { diff --git a/target/linux/generic/patches-2.6.39/223-kobject-add-broadcast_uevent.patch b/target/linux/generic/patches-2.6.39/223-kobject-add-broadcast_uevent.patch deleted file mode 100644 index a428ec5cd15..00000000000 --- a/target/linux/generic/patches-2.6.39/223-kobject-add-broadcast_uevent.patch +++ /dev/null @@ -1,85 +0,0 @@ ---- a/include/linux/kobject.h -+++ b/include/linux/kobject.h -@@ -31,6 +31,8 @@ - #define UEVENT_NUM_ENVP 32 /* number of env pointers */ - #define UEVENT_BUFFER_SIZE 2048 /* buffer for the variables */ - -+struct sk_buff; -+ - /* path to the userspace helper executed on an event */ - extern char uevent_helper[]; - -@@ -217,6 +219,10 @@ int add_uevent_var(struct kobj_uevent_en - - int kobject_action_type(const char *buf, size_t count, - enum kobject_action *type); -+ -+int broadcast_uevent(struct sk_buff *skb, __u32 pid, __u32 group, -+ gfp_t allocation); -+ - #else - static inline int kobject_uevent(struct kobject *kobj, - enum kobject_action action) -@@ -233,6 +239,16 @@ int add_uevent_var(struct kobj_uevent_en - static inline int kobject_action_type(const char *buf, size_t count, - enum kobject_action *type) - { return -EINVAL; } -+ -+void kfree_skb(struct sk_buff *); -+ -+static inline int broadcast_uevent(struct sk_buff *skb, __u32 pid, __u32 group, -+ gfp_t allocation) -+{ -+ kfree_skb(skb); -+ return 0; -+} -+ - #endif - - #endif /* _KOBJECT_H_ */ ---- a/lib/kobject_uevent.c -+++ b/lib/kobject_uevent.c -@@ -377,6 +377,43 @@ int add_uevent_var(struct kobj_uevent_en - EXPORT_SYMBOL_GPL(add_uevent_var); - - #if defined(CONFIG_NET) -+int broadcast_uevent(struct sk_buff *skb, __u32 pid, __u32 group, -+ gfp_t allocation) -+{ -+ struct uevent_sock *ue_sk; -+ int err = 0; -+ -+ /* send netlink message */ -+ mutex_lock(&uevent_sock_mutex); -+ list_for_each_entry(ue_sk, &uevent_sock_list, list) { -+ struct sock *uevent_sock = ue_sk->sk; -+ struct sk_buff *skb2; -+ -+ skb2 = skb_clone(skb, allocation); -+ if (!skb2) -+ break; -+ -+ err = netlink_broadcast(uevent_sock, skb2, pid, group, -+ allocation); -+ if (err) -+ break; -+ } -+ mutex_unlock(&uevent_sock_mutex); -+ -+ kfree_skb(skb); -+ return err; -+} -+#else -+int broadcast_uevent(struct sk_buff *skb, __u32 pid, __u32 group, -+ gfp_t allocation) -+{ -+ kfree_skb(skb); -+ return 0; -+} -+#endif -+EXPORT_SYMBOL_GPL(broadcast_uevent); -+ -+#if defined(CONFIG_NET) - static int uevent_net_init(struct net *net) - { - struct uevent_sock *ue_sk; diff --git a/target/linux/generic/patches-2.6.39/230-openwrt_lzma_options.patch b/target/linux/generic/patches-2.6.39/230-openwrt_lzma_options.patch new file mode 100644 index 00000000000..67e0ceefb08 --- /dev/null +++ b/target/linux/generic/patches-2.6.39/230-openwrt_lzma_options.patch @@ -0,0 +1,54 @@ +--- a/scripts/Makefile.lib ++++ b/scripts/Makefile.lib +@@ -254,7 +254,7 @@ cmd_bzip2 = (cat $(filter-out FORCE,$^) + + quiet_cmd_lzma = LZMA $@ + cmd_lzma = (cat $(filter-out FORCE,$^) | \ +- lzma -9 && $(call size_append, $(filter-out FORCE,$^))) > $@ || \ ++ lzma e -d20 -lc1 -lp2 -pb2 -eos -si -so && $(call size_append, $(filter-out FORCE,$^))) > $@ || \ + (rm -f $@ ; false) + + quiet_cmd_lzo = LZO $@ +--- a/scripts/gen_initramfs_list.sh ++++ b/scripts/gen_initramfs_list.sh +@@ -226,7 +226,7 @@ cpio_list= + output="/dev/stdout" + output_file="" + is_cpio_compressed= +-compr="gzip -9 -f" ++compr="gzip -9 -f -" + + arg="$1" + case "$arg" in +@@ -240,9 +240,9 @@ case "$arg" in + output_file="$1" + cpio_list="$(mktemp ${TMPDIR:-/tmp}/cpiolist.XXXXXX)" + output=${cpio_list} +- echo "$output_file" | grep -q "\.gz$" && compr="gzip -9 -f" +- echo "$output_file" | grep -q "\.bz2$" && compr="bzip2 -9 -f" +- echo "$output_file" | grep -q "\.lzma$" && compr="lzma -9 -f" ++ echo "$output_file" | grep -q "\.gz$" && compr="gzip -9 -f -" ++ echo "$output_file" | grep -q "\.bz2$" && compr="bzip2 -9 -f -" ++ echo "$output_file" | grep -q "\.lzma$" && compr="lzma e -d20 -lc1 -lp2 -pb2 -eos -si -so" + echo "$output_file" | grep -q "\.xz$" && \ + compr="xz --check=crc32 --lzma2=dict=1MiB" + echo "$output_file" | grep -q "\.lzo$" && compr="lzop -9 -f" +@@ -296,7 +296,7 @@ if [ ! -z ${output_file} ]; then + if [ "${is_cpio_compressed}" = "compressed" ]; then + cat ${cpio_tfile} > ${output_file} + else +- (cat ${cpio_tfile} | ${compr} - > ${output_file}) \ ++ (cat ${cpio_tfile} | ${compr} > ${output_file}) \ + || (rm -f ${output_file} ; false) + fi + [ -z ${cpio_file} ] && rm ${cpio_tfile} +--- a/lib/decompress.c ++++ b/lib/decompress.c +@@ -40,6 +40,7 @@ static const struct compress_format { + { {037, 0236}, "gzip", gunzip }, + { {0x42, 0x5a}, "bzip2", bunzip2 }, + { {0x5d, 0x00}, "lzma", unlzma }, ++ { {0x6d, 0x00}, "lzma-openwrt", unlzma }, + { {0xfd, 0x37}, "xz", unxz }, + { {0x89, 0x4c}, "lzo", unlzo }, + { {0, 0}, NULL, NULL } diff --git a/target/linux/generic/patches-2.6.39/240-packet_socket_type.patch b/target/linux/generic/patches-2.6.39/240-packet_socket_type.patch deleted file mode 100644 index 75b61290c34..00000000000 --- a/target/linux/generic/patches-2.6.39/240-packet_socket_type.patch +++ /dev/null @@ -1,132 +0,0 @@ -This patch allows the user to specify desired packet types (outgoing, -broadcast, unicast, etc.) on packet sockets via setsockopt. -This can reduce the load in situations where only a limited number -of packet types are necessary - -Signed-off-by: Felix Fietkau - ---- a/include/linux/if_packet.h -+++ b/include/linux/if_packet.h -@@ -29,6 +29,8 @@ struct sockaddr_ll { - /* These ones are invisible by user level */ - #define PACKET_LOOPBACK 5 /* MC/BRD frame looped back */ - #define PACKET_FASTROUTE 6 /* Fastrouted frame */ -+#define PACKET_MASK_ANY 0xffffffff /* mask for packet type bits */ -+ - - /* Packet socket options */ - -@@ -49,6 +51,7 @@ struct sockaddr_ll { - #define PACKET_VNET_HDR 15 - #define PACKET_TX_TIMESTAMP 16 - #define PACKET_TIMESTAMP 17 -+#define PACKET_RECV_TYPE 18 - - struct tpacket_stats { - unsigned int tp_packets; ---- a/net/packet/af_packet.c -+++ b/net/packet/af_packet.c -@@ -210,6 +210,7 @@ struct packet_sock { - unsigned int tp_loss:1; - unsigned int tp_tstamp; - struct packet_type prot_hook ____cacheline_aligned_in_smp; -+ unsigned int pkt_type; - }; - - struct packet_skb_cb { -@@ -354,6 +355,7 @@ static int packet_rcv_spkt(struct sk_buf - { - struct sock *sk; - struct sockaddr_pkt *spkt; -+ struct packet_sock *po; - - /* - * When we registered the protocol we saved the socket in the data -@@ -361,6 +363,7 @@ static int packet_rcv_spkt(struct sk_buf - */ - - sk = pt->af_packet_priv; -+ po = pkt_sk(sk); - - /* - * Yank back the headers [hope the device set this -@@ -373,7 +376,7 @@ static int packet_rcv_spkt(struct sk_buf - * so that this procedure is noop. - */ - -- if (skb->pkt_type == PACKET_LOOPBACK) -+ if (!(po->pkt_type & (1 << skb->pkt_type))) - goto out; - - if (!net_eq(dev_net(dev), sock_net(sk))) -@@ -566,12 +569,12 @@ static int packet_rcv(struct sk_buff *sk - int skb_len = skb->len; - unsigned int snaplen, res; - -- if (skb->pkt_type == PACKET_LOOPBACK) -- goto drop; -- - sk = pt->af_packet_priv; - po = pkt_sk(sk); - -+ if (!(po->pkt_type & (1 << skb->pkt_type))) -+ goto drop; -+ - if (!net_eq(dev_net(dev), sock_net(sk))) - goto drop; - -@@ -687,12 +690,12 @@ static int tpacket_rcv(struct sk_buff *s - struct timespec ts; - struct skb_shared_hwtstamps *shhwtstamps = skb_hwtstamps(skb); - -- if (skb->pkt_type == PACKET_LOOPBACK) -- goto drop; -- - sk = pt->af_packet_priv; - po = pkt_sk(sk); - -+ if (!(po->pkt_type & (1 << skb->pkt_type))) -+ goto drop; -+ - if (!net_eq(dev_net(dev), sock_net(sk))) - goto drop; - -@@ -1523,6 +1526,7 @@ static int packet_create(struct net *net - spin_lock_init(&po->bind_lock); - mutex_init(&po->pg_vec_lock); - po->prot_hook.func = packet_rcv; -+ po->pkt_type = PACKET_MASK_ANY & ~(1 << PACKET_LOOPBACK); - - if (sock->type == SOCK_PACKET) - po->prot_hook.func = packet_rcv_spkt; -@@ -2091,6 +2095,16 @@ packet_setsockopt(struct socket *sock, i - po->tp_tstamp = val; - return 0; - } -+ case PACKET_RECV_TYPE: -+ { -+ unsigned int val; -+ if (optlen != sizeof(val)) -+ return -EINVAL; -+ if (copy_from_user(&val, optval, sizeof(val))) -+ return -EFAULT; -+ po->pkt_type = val & ~PACKET_LOOPBACK; -+ return 0; -+ } - default: - return -ENOPROTOOPT; - } -@@ -2148,6 +2162,13 @@ static int packet_getsockopt(struct sock - - data = &val; - break; -+ case PACKET_RECV_TYPE: -+ if (len > sizeof(unsigned int)) -+ len = sizeof(unsigned int); -+ val = po->pkt_type; -+ -+ data = &val; -+ break; - case PACKET_VERSION: - if (len > sizeof(int)) - len = sizeof(int); diff --git a/target/linux/generic/patches-2.6.39/250-netfilter_depends.patch b/target/linux/generic/patches-2.6.39/250-netfilter_depends.patch new file mode 100644 index 00000000000..656046024f6 --- /dev/null +++ b/target/linux/generic/patches-2.6.39/250-netfilter_depends.patch @@ -0,0 +1,18 @@ +--- a/net/netfilter/Kconfig ++++ b/net/netfilter/Kconfig +@@ -163,7 +163,6 @@ config NF_CONNTRACK_FTP + + config NF_CONNTRACK_H323 + tristate "H.323 protocol support" +- depends on (IPV6 || IPV6=n) + depends on NETFILTER_ADVANCED + help + H.323 is a VoIP signalling protocol from ITU-T. As one of the most +@@ -611,7 +610,6 @@ config NETFILTER_XT_TARGET_SECMARK + + config NETFILTER_XT_TARGET_TCPMSS + tristate '"TCPMSS" target support' +- depends on (IPV6 || IPV6=n) + default m if NETFILTER_ADVANCED=n + ---help--- + This option adds a `TCPMSS' target, which allows you to alter the diff --git a/target/linux/generic/patches-2.6.39/250-pppoe_header_pad.patch b/target/linux/generic/patches-2.6.39/250-pppoe_header_pad.patch deleted file mode 100644 index 4875d5f23f2..00000000000 --- a/target/linux/generic/patches-2.6.39/250-pppoe_header_pad.patch +++ /dev/null @@ -1,20 +0,0 @@ ---- a/drivers/net/pppoe.c -+++ b/drivers/net/pppoe.c -@@ -855,7 +855,7 @@ static int pppoe_sendmsg(struct kiocb *i - goto end; - - -- skb = sock_wmalloc(sk, total_len + dev->hard_header_len + 32, -+ skb = sock_wmalloc(sk, total_len + dev->hard_header_len + 32 + NET_SKB_PAD, - 0, GFP_KERNEL); - if (!skb) { - error = -ENOMEM; -@@ -863,7 +863,7 @@ static int pppoe_sendmsg(struct kiocb *i - } - - /* Reserve space for headers. */ -- skb_reserve(skb, dev->hard_header_len); -+ skb_reserve(skb, dev->hard_header_len + NET_SKB_PAD); - skb_reset_network_header(skb); - - skb->dev = dev; diff --git a/target/linux/generic/patches-2.6.39/251-sound_kconfig.patch b/target/linux/generic/patches-2.6.39/251-sound_kconfig.patch new file mode 100644 index 00000000000..fb3df254dcc --- /dev/null +++ b/target/linux/generic/patches-2.6.39/251-sound_kconfig.patch @@ -0,0 +1,11 @@ +--- a/sound/core/Kconfig ++++ b/sound/core/Kconfig +@@ -8,7 +8,7 @@ config SND_PCM + select GCD + + config SND_HWDEP +- tristate ++ tristate "Sound hardware support" + + config SND_RAWMIDI + tristate diff --git a/target/linux/generic/patches-2.6.39/252-mv_cesa_depends.patch b/target/linux/generic/patches-2.6.39/252-mv_cesa_depends.patch new file mode 100644 index 00000000000..1fd2f6365a5 --- /dev/null +++ b/target/linux/generic/patches-2.6.39/252-mv_cesa_depends.patch @@ -0,0 +1,10 @@ +--- a/drivers/crypto/Kconfig ++++ b/drivers/crypto/Kconfig +@@ -162,6 +162,7 @@ config CRYPTO_DEV_MV_CESA + depends on PLAT_ORION + select CRYPTO_ALGAPI + select CRYPTO_AES ++ select CRYPTO_HASH2 + select CRYPTO_BLKCIPHER2 + help + This driver allows you to utilize the Cryptographic Engines and diff --git a/target/linux/generic/patches-2.6.39/253-ssb_b43_default_on.patch b/target/linux/generic/patches-2.6.39/253-ssb_b43_default_on.patch new file mode 100644 index 00000000000..3176dcb4d87 --- /dev/null +++ b/target/linux/generic/patches-2.6.39/253-ssb_b43_default_on.patch @@ -0,0 +1,19 @@ +--- a/drivers/ssb/Kconfig ++++ b/drivers/ssb/Kconfig +@@ -29,6 +29,7 @@ config SSB_SPROM + config SSB_BLOCKIO + bool + depends on SSB ++ default y + + config SSB_PCIHOST_POSSIBLE + bool +@@ -49,7 +50,7 @@ config SSB_PCIHOST + config SSB_B43_PCI_BRIDGE + bool + depends on SSB_PCIHOST +- default n ++ default y + + config SSB_PCMCIAHOST_POSSIBLE + bool diff --git a/target/linux/generic/patches-2.6.39/254-textsearch_kconfig_hacks.patch b/target/linux/generic/patches-2.6.39/254-textsearch_kconfig_hacks.patch new file mode 100644 index 00000000000..2bb01f77eeb --- /dev/null +++ b/target/linux/generic/patches-2.6.39/254-textsearch_kconfig_hacks.patch @@ -0,0 +1,23 @@ +--- a/lib/Kconfig ++++ b/lib/Kconfig +@@ -200,16 +200,16 @@ config BCH_CONST_T + # Textsearch support is select'ed if needed + # + config TEXTSEARCH +- boolean ++ boolean "Textsearch support" + + config TEXTSEARCH_KMP +- tristate ++ tristate "Textsearch KMP" + + config TEXTSEARCH_BM +- tristate ++ tristate "Textsearch BM" + + config TEXTSEARCH_FSM +- tristate ++ tristate "Textsearch FSM" + + config BTREE + boolean diff --git a/target/linux/generic/patches-2.6.39/255-lib80211_kconfig_hacks.patch b/target/linux/generic/patches-2.6.39/255-lib80211_kconfig_hacks.patch new file mode 100644 index 00000000000..c044deac00e --- /dev/null +++ b/target/linux/generic/patches-2.6.39/255-lib80211_kconfig_hacks.patch @@ -0,0 +1,19 @@ +--- a/net/wireless/Kconfig ++++ b/net/wireless/Kconfig +@@ -142,13 +142,13 @@ config LIB80211 + you want this built into your kernel. + + config LIB80211_CRYPT_WEP +- tristate ++ tristate "LIB80211_CRYPT_WEP" + + config LIB80211_CRYPT_CCMP +- tristate ++ tristate "LIB80211_CRYPT_CCMP" + + config LIB80211_CRYPT_TKIP +- tristate ++ tristate "LIB80211_CRYPT_TKIP" + + config LIB80211_DEBUG + bool "lib80211 debugging messages" diff --git a/target/linux/generic/patches-2.6.39/256-crypto_add_kconfig_prompts.patch b/target/linux/generic/patches-2.6.39/256-crypto_add_kconfig_prompts.patch new file mode 100644 index 00000000000..8462c711f02 --- /dev/null +++ b/target/linux/generic/patches-2.6.39/256-crypto_add_kconfig_prompts.patch @@ -0,0 +1,47 @@ +--- a/crypto/Kconfig ++++ b/crypto/Kconfig +@@ -31,7 +31,7 @@ config CRYPTO_FIPS + this is. + + config CRYPTO_ALGAPI +- tristate ++ tristate "ALGAPI" + select CRYPTO_ALGAPI2 + help + This option provides the API for cryptographic algorithms. +@@ -40,7 +40,7 @@ config CRYPTO_ALGAPI2 + tristate + + config CRYPTO_AEAD +- tristate ++ tristate "AEAD" + select CRYPTO_AEAD2 + select CRYPTO_ALGAPI + +@@ -49,7 +49,7 @@ config CRYPTO_AEAD2 + select CRYPTO_ALGAPI2 + + config CRYPTO_BLKCIPHER +- tristate ++ tristate "BLKCIPHER" + select CRYPTO_BLKCIPHER2 + select CRYPTO_ALGAPI + +@@ -60,7 +60,7 @@ config CRYPTO_BLKCIPHER2 + select CRYPTO_WORKQUEUE + + config CRYPTO_HASH +- tristate ++ tristate "HASH" + select CRYPTO_HASH2 + select CRYPTO_ALGAPI + +@@ -69,7 +69,7 @@ config CRYPTO_HASH2 + select CRYPTO_ALGAPI2 + + config CRYPTO_RNG +- tristate ++ tristate "RNG" + select CRYPTO_RNG2 + select CRYPTO_ALGAPI + diff --git a/target/linux/generic/patches-2.6.39/257-wireless_ext_kconfig_hack.patch b/target/linux/generic/patches-2.6.39/257-wireless_ext_kconfig_hack.patch new file mode 100644 index 00000000000..daac5898aea --- /dev/null +++ b/target/linux/generic/patches-2.6.39/257-wireless_ext_kconfig_hack.patch @@ -0,0 +1,22 @@ +--- a/net/wireless/Kconfig ++++ b/net/wireless/Kconfig +@@ -1,5 +1,5 @@ + config WIRELESS_EXT +- bool ++ bool "Wireless extensions" + + config WEXT_CORE + def_bool y +@@ -11,10 +11,10 @@ config WEXT_PROC + depends on WEXT_CORE + + config WEXT_SPY +- bool ++ bool "WEXT_SPY" + + config WEXT_PRIV +- bool ++ bool "WEXT_PRIV" + + config CFG80211 + tristate "cfg80211 - wireless configuration API" diff --git a/target/linux/generic/patches-2.6.39/270-bridge_no_eap_forward.patch b/target/linux/generic/patches-2.6.39/270-bridge_no_eap_forward.patch deleted file mode 100644 index dac898276d3..00000000000 --- a/target/linux/generic/patches-2.6.39/270-bridge_no_eap_forward.patch +++ /dev/null @@ -1,15 +0,0 @@ ---- a/net/bridge/br_input.c -+++ b/net/bridge/br_input.c -@@ -77,7 +77,11 @@ int br_handle_frame_finish(struct sk_buf - - dst = NULL; - -- if (is_multicast_ether_addr(dest)) { -+ if (skb->protocol == htons(ETH_P_PAE)) { -+ skb2 = skb; -+ /* Do not forward 802.1x/EAP frames */ -+ skb = NULL; -+ } else if (is_multicast_ether_addr(dest)) { - mdst = br_mdb_get(br, skb); - if (mdst || BR_INPUT_SKB_CB_MROUTERS_ONLY(skb)) { - if ((mdst && mdst->mglist) || diff --git a/target/linux/generic/patches-2.6.39/271-bridge_always_accept_eap.patch b/target/linux/generic/patches-2.6.39/271-bridge_always_accept_eap.patch deleted file mode 100644 index b3a793e49b1..00000000000 --- a/target/linux/generic/patches-2.6.39/271-bridge_always_accept_eap.patch +++ /dev/null @@ -1,11 +0,0 @@ ---- a/net/bridge/br_input.c -+++ b/net/bridge/br_input.c -@@ -64,7 +64,7 @@ int br_handle_frame_finish(struct sk_buf - br_multicast_rcv(br, p, skb)) - goto drop; - -- if (p->state == BR_STATE_LEARNING) -+ if ((p->state == BR_STATE_LEARNING) && skb->protocol != htons(ETH_P_PAE)) - goto drop; - - BR_INPUT_SKB_CB(skb)->brdev = br->dev; diff --git a/target/linux/generic/patches-2.6.39/290-sched_act_connmark.patch b/target/linux/generic/patches-2.6.39/290-sched_act_connmark.patch deleted file mode 100644 index c8c9b232a53..00000000000 --- a/target/linux/generic/patches-2.6.39/290-sched_act_connmark.patch +++ /dev/null @@ -1,171 +0,0 @@ ---- /dev/null -+++ b/net/sched/act_connmark.c -@@ -0,0 +1,137 @@ -+/* -+ * Copyright (c) 2011 Felix Fietkau -+ * -+ * This program is free software; you can redistribute it and/or modify it -+ * under the terms and conditions of the GNU General Public License, -+ * version 2, as published by the Free Software Foundation. -+ * -+ * This program is distributed in the hope it will be useful, but WITHOUT -+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or -+ * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for -+ * more details. -+ * -+ * You should have received a copy of the GNU General Public License along with -+ * this program; if not, write to the Free Software Foundation, Inc., 59 Temple -+ * Place - Suite 330, Boston, MA 02111-1307 USA. -+ */ -+ -+#include -+#include -+#include -+#include -+#include -+#include -+#include -+#include -+#include -+#include -+#include -+ -+#include -+#include -+ -+#define TCA_ACT_CONNMARK 20 -+ -+#define CONNMARK_TAB_MASK 3 -+static struct tcf_common *tcf_connmark_ht[CONNMARK_TAB_MASK + 1]; -+static u32 connmark_idx_gen; -+static DEFINE_RWLOCK(connmark_lock); -+ -+static struct tcf_hashinfo connmark_hash_info = { -+ .htab = tcf_connmark_ht, -+ .hmask = CONNMARK_TAB_MASK, -+ .lock = &connmark_lock, -+}; -+ -+static int tcf_connmark(struct sk_buff *skb, struct tc_action *a, -+ struct tcf_result *res) -+{ -+ struct nf_conn *c; -+ enum ip_conntrack_info ctinfo; -+ int proto; -+ int r; -+ -+ if (skb->protocol == htons(ETH_P_IP)) { -+ if (skb->len < sizeof(struct iphdr)) -+ goto out; -+ proto = PF_INET; -+ } else if (skb->protocol == htons(ETH_P_IPV6)) { -+ if (skb->len < sizeof(struct ipv6hdr)) -+ goto out; -+ proto = PF_INET6; -+ } else -+ goto out; -+ -+ r = nf_conntrack_in(dev_net(skb->dev), proto, NF_INET_PRE_ROUTING, skb); -+ if (r != NF_ACCEPT) -+ goto out; -+ -+ c = nf_ct_get(skb, &ctinfo); -+ if (!c) -+ goto out; -+ -+ skb->mark = c->mark; -+ nf_conntrack_put(skb->nfct); -+ skb->nfct = NULL; -+ -+out: -+ return TC_ACT_PIPE; -+} -+ -+static int tcf_connmark_init(struct nlattr *nla, struct nlattr *est, -+ struct tc_action *a, int ovr, int bind) -+{ -+ struct tcf_common *pc; -+ -+ pc = tcf_hash_create(0, est, a, sizeof(*pc), bind, -+ &connmark_idx_gen, &connmark_hash_info); -+ if (IS_ERR(pc)) -+ return PTR_ERR(pc); -+ -+ tcf_hash_insert(pc, &connmark_hash_info); -+ -+ return ACT_P_CREATED; -+} -+ -+static inline int tcf_connmark_cleanup(struct tc_action *a, int bind) -+{ -+ if (a->priv) -+ return tcf_hash_release(a->priv, bind, &connmark_hash_info); -+ return 0; -+} -+ -+static inline int tcf_connmark_dump(struct sk_buff *skb, struct tc_action *a, -+ int bind, int ref) -+{ -+ return skb->len; -+} -+ -+static struct tc_action_ops act_connmark_ops = { -+ .kind = "connmark", -+ .hinfo = &connmark_hash_info, -+ .type = TCA_ACT_CONNMARK, -+ .capab = TCA_CAP_NONE, -+ .owner = THIS_MODULE, -+ .act = tcf_connmark, -+ .dump = tcf_connmark_dump, -+ .cleanup = tcf_connmark_cleanup, -+ .init = tcf_connmark_init, -+ .walk = tcf_generic_walker, -+}; -+ -+MODULE_AUTHOR("Felix Fietkau "); -+MODULE_DESCRIPTION("Connection tracking mark restoring"); -+MODULE_LICENSE("GPL"); -+ -+static int __init connmark_init_module(void) -+{ -+ return tcf_register_action(&act_connmark_ops); -+} -+ -+static void __exit connmark_cleanup_module(void) -+{ -+ tcf_unregister_action(&act_connmark_ops); -+} -+ -+module_init(connmark_init_module); -+module_exit(connmark_cleanup_module); ---- a/net/sched/Kconfig -+++ b/net/sched/Kconfig -@@ -590,6 +590,18 @@ config NET_ACT_CSUM - To compile this code as a module, choose M here: the - module will be called act_csum. - -+config NET_ACT_CONNMARK -+ tristate "Connection Tracking Marking" -+ depends on NET_CLS_ACT -+ depends on NF_CONNTRACK -+ ---help--- -+ Say Y here to restore the connmark from a scheduler action -+ -+ If unsure, say N. -+ -+ To compile this code as a module, choose M here: the -+ module will be called act_connmark. -+ - config NET_CLS_IND - bool "Incoming device classification" - depends on NET_CLS_U32 || NET_CLS_FW ---- a/net/sched/Makefile -+++ b/net/sched/Makefile -@@ -16,6 +16,7 @@ obj-$(CONFIG_NET_ACT_PEDIT) += act_pedit - obj-$(CONFIG_NET_ACT_SIMP) += act_simple.o - obj-$(CONFIG_NET_ACT_SKBEDIT) += act_skbedit.o - obj-$(CONFIG_NET_ACT_CSUM) += act_csum.o -+obj-$(CONFIG_NET_ACT_CONNMARK) += act_connmark.o - obj-$(CONFIG_NET_SCH_FIFO) += sch_fifo.o - obj-$(CONFIG_NET_SCH_CBQ) += sch_cbq.o - obj-$(CONFIG_NET_SCH_HTB) += sch_htb.o diff --git a/target/linux/generic/patches-2.6.39/300-bridge_port_isolate.patch b/target/linux/generic/patches-2.6.39/300-bridge_port_isolate.patch deleted file mode 100644 index c051a29f2d2..00000000000 --- a/target/linux/generic/patches-2.6.39/300-bridge_port_isolate.patch +++ /dev/null @@ -1,103 +0,0 @@ ---- a/net/bridge/br_private.h -+++ b/net/bridge/br_private.h -@@ -132,6 +132,7 @@ struct net_bridge_port - - unsigned long flags; - #define BR_HAIRPIN_MODE 0x00000001 -+#define BR_ISOLATE_MODE 0x00000002 - - #ifdef CONFIG_BRIDGE_IGMP_SNOOPING - u32 multicast_startup_queries_sent; ---- a/net/bridge/br_sysfs_if.c -+++ b/net/bridge/br_sysfs_if.c -@@ -159,6 +159,22 @@ static ssize_t store_hairpin_mode(struct - static BRPORT_ATTR(hairpin_mode, S_IRUGO | S_IWUSR, - show_hairpin_mode, store_hairpin_mode); - -+static ssize_t show_isolate_mode(struct net_bridge_port *p, char *buf) -+{ -+ int isolate_mode = (p->flags & BR_ISOLATE_MODE) ? 1 : 0; -+ return sprintf(buf, "%d\n", isolate_mode); -+} -+static ssize_t store_isolate_mode(struct net_bridge_port *p, unsigned long v) -+{ -+ if (v) -+ p->flags |= BR_ISOLATE_MODE; -+ else -+ p->flags &= ~BR_ISOLATE_MODE; -+ return 0; -+} -+static BRPORT_ATTR(isolate_mode, S_IRUGO | S_IWUSR, -+ show_isolate_mode, store_isolate_mode); -+ - #ifdef CONFIG_BRIDGE_IGMP_SNOOPING - static ssize_t show_multicast_router(struct net_bridge_port *p, char *buf) - { -@@ -191,6 +207,7 @@ static struct brport_attribute *brport_a - &brport_attr_hold_timer, - &brport_attr_flush, - &brport_attr_hairpin_mode, -+ &brport_attr_isolate_mode, - #ifdef CONFIG_BRIDGE_IGMP_SNOOPING - &brport_attr_multicast_router, - #endif ---- a/net/bridge/br_input.c -+++ b/net/bridge/br_input.c -@@ -95,7 +95,8 @@ int br_handle_frame_finish(struct sk_buf - skb2 = skb; - - br->dev->stats.multicast++; -- } else if ((dst = __br_fdb_get(br, dest)) && dst->is_local) { -+ } else if ((p->flags & BR_ISOLATE_MODE) || -+ ((dst = __br_fdb_get(br, dest)) && dst->is_local)) { - skb2 = skb; - /* Do not forward the packet since it's local. */ - skb = NULL; ---- a/net/bridge/br_forward.c -+++ b/net/bridge/br_forward.c -@@ -109,7 +109,7 @@ void br_deliver(const struct net_bridge_ - /* called with rcu_read_lock */ - void br_forward(const struct net_bridge_port *to, struct sk_buff *skb, struct sk_buff *skb0) - { -- if (should_deliver(to, skb)) { -+ if (should_deliver(to, skb) && !(to->flags & BR_ISOLATE_MODE)) { - if (skb0) - deliver_clone(to, skb, __br_forward); - else -@@ -164,7 +164,8 @@ out: - static void br_flood(struct net_bridge *br, struct sk_buff *skb, - struct sk_buff *skb0, - void (*__packet_hook)(const struct net_bridge_port *p, -- struct sk_buff *skb)) -+ struct sk_buff *skb), -+ bool forward) - { - struct net_bridge_port *p; - struct net_bridge_port *prev; -@@ -172,6 +173,9 @@ static void br_flood(struct net_bridge * - prev = NULL; - - list_for_each_entry_rcu(p, &br->port_list, list) { -+ if (forward && (p->flags & BR_ISOLATE_MODE)) -+ continue; -+ - prev = maybe_deliver(prev, p, skb, __packet_hook); - if (IS_ERR(prev)) - goto out; -@@ -195,14 +199,14 @@ out: - /* called with rcu_read_lock */ - void br_flood_deliver(struct net_bridge *br, struct sk_buff *skb) - { -- br_flood(br, skb, NULL, __br_deliver); -+ br_flood(br, skb, NULL, __br_deliver, false); - } - - /* called under bridge lock */ - void br_flood_forward(struct net_bridge *br, struct sk_buff *skb, - struct sk_buff *skb2) - { -- br_flood(br, skb, skb2, __br_forward); -+ br_flood(br, skb, skb2, __br_forward, true); - } - - #ifdef CONFIG_BRIDGE_IGMP_SNOOPING diff --git a/target/linux/generic/patches-2.6.39/300-mips_expose_boot_raw.patch b/target/linux/generic/patches-2.6.39/300-mips_expose_boot_raw.patch new file mode 100644 index 00000000000..0be7b74de10 --- /dev/null +++ b/target/linux/generic/patches-2.6.39/300-mips_expose_boot_raw.patch @@ -0,0 +1,39 @@ +From: Mark Miller + +This exposes the CONFIG_BOOT_RAW symbol in Kconfig. This is needed on +certain Broadcom chipsets running CFE in order to load the kernel. + +Signed-off-by: Mark Miller +Acked-by: Rob Landley +--- +--- a/arch/mips/Kconfig ++++ b/arch/mips/Kconfig +@@ -811,9 +811,6 @@ config ARC + config ARCH_MAY_HAVE_PC_FDC + bool + +-config BOOT_RAW +- bool +- + config CEVT_BCM1480 + bool + +@@ -2252,6 +2249,18 @@ config USE_OF + help + Include support for flattened device tree machine descriptions. + ++config BOOT_RAW ++ bool "Enable the kernel to be executed from the load address" ++ default n ++ help ++ Allow the kernel to be executed from the load address for ++ bootloaders which cannot read the ELF format. This places ++ a jump to start_kernel at the load address. ++ ++ If unsure, say N. ++ ++ ++ + endmenu + + config LOCKDEP_SUPPORT diff --git a/target/linux/generic/patches-2.6.39/301-mips_image_cmdline_hack.patch b/target/linux/generic/patches-2.6.39/301-mips_image_cmdline_hack.patch new file mode 100644 index 00000000000..ab5e775cc6e --- /dev/null +++ b/target/linux/generic/patches-2.6.39/301-mips_image_cmdline_hack.patch @@ -0,0 +1,28 @@ +--- a/arch/mips/Kconfig ++++ b/arch/mips/Kconfig +@@ -910,6 +910,10 @@ config SYNC_R4K + config MIPS_MACHINE + def_bool n + ++config IMAGE_CMDLINE_HACK ++ bool "OpenWrt specific image command line hack" ++ default n ++ + config NO_IOPORT + def_bool n + +--- a/arch/mips/kernel/head.S ++++ b/arch/mips/kernel/head.S +@@ -141,6 +141,12 @@ FEXPORT(__kernel_entry) + j kernel_entry + #endif + ++#ifdef CONFIG_IMAGE_CMDLINE_HACK ++ .ascii "CMDLINE:" ++EXPORT(__image_cmdline) ++ .fill 0x400 ++#endif /* CONFIG_IMAGE_CMDLINE_HACK */ ++ + __REF + + NESTED(kernel_entry, 16, sp) # kernel entry point diff --git a/target/linux/generic/patches-2.6.39/302-mips_use_generic_thread_info_allocator.patch b/target/linux/generic/patches-2.6.39/302-mips_use_generic_thread_info_allocator.patch new file mode 100644 index 00000000000..1bcc74b41a5 --- /dev/null +++ b/target/linux/generic/patches-2.6.39/302-mips_use_generic_thread_info_allocator.patch @@ -0,0 +1,18 @@ +--- a/arch/mips/include/asm/thread_info.h ++++ b/arch/mips/include/asm/thread_info.h +@@ -85,6 +85,7 @@ register struct thread_info *__current_t + + #define STACK_WARN (THREAD_SIZE / 8) + ++#if 0 + #define __HAVE_ARCH_THREAD_INFO_ALLOCATOR + + #ifdef CONFIG_DEBUG_STACK_USAGE +@@ -96,6 +97,7 @@ register struct thread_info *__current_t + #endif + + #define free_thread_info(info) kfree(info) ++#endif + + #endif /* !__ASSEMBLY__ */ + diff --git a/target/linux/generic/patches-2.6.39/303-mips_fix_kexec.patch b/target/linux/generic/patches-2.6.39/303-mips_fix_kexec.patch new file mode 100644 index 00000000000..e6928dde916 --- /dev/null +++ b/target/linux/generic/patches-2.6.39/303-mips_fix_kexec.patch @@ -0,0 +1,11 @@ +--- a/arch/mips/kernel/machine_kexec.c ++++ b/arch/mips/kernel/machine_kexec.c +@@ -52,7 +52,7 @@ machine_kexec(struct kimage *image) + reboot_code_buffer = + (unsigned long)page_address(image->control_code_page); + +- kexec_start_address = image->start; ++ kexec_start_address = (unsigned long) phys_to_virt(image->start); + kexec_indirection_page = + (unsigned long) phys_to_virt(image->head & PAGE_MASK); + diff --git a/target/linux/generic/patches-2.6.39/304-mips_disable_fpu.patch b/target/linux/generic/patches-2.6.39/304-mips_disable_fpu.patch new file mode 100644 index 00000000000..520a5188c89 --- /dev/null +++ b/target/linux/generic/patches-2.6.39/304-mips_disable_fpu.patch @@ -0,0 +1,160 @@ +MIPS: allow disabling the kernel FPU emulator + +This patch allows turning off the in-kernel Algorithmics +FPU emulator support, which allows one to save a couple of +precious blocks on an embedded system. + +Signed-off-by: Florian Fainelli +-- +--- a/arch/mips/Kconfig ++++ b/arch/mips/Kconfig +@@ -895,6 +895,17 @@ config I8259 + config MIPS_BONITO64 + bool + ++config MIPS_FPU_EMU ++ bool "Enable FPU emulation" ++ default y ++ help ++ This option allows building a kernel with or without the Algorithmics ++ FPU emulator enabled. Turning off this option results in a kernel which ++ does not catch floating operations exceptions. Make sure that your toolchain ++ is configured to enable software floating point emulation in that case. ++ ++ If unsure say Y here. ++ + config MIPS_MSC + bool + +--- a/arch/mips/math-emu/Makefile ++++ b/arch/mips/math-emu/Makefile +@@ -2,11 +2,13 @@ + # Makefile for the Linux/MIPS kernel FPU emulation. + # + +-obj-y := cp1emu.o ieee754m.o ieee754d.o ieee754dp.o ieee754sp.o ieee754.o \ ++obj-y := kernel_linkage.o dsemul.o cp1emu.o ++ ++obj-$(CONFIG_MIPS_FPU_EMU) += ieee754m.o ieee754d.o ieee754dp.o ieee754sp.o ieee754.o \ + ieee754xcpt.o dp_frexp.o dp_modf.o dp_div.o dp_mul.o dp_sub.o \ + dp_add.o dp_fsp.o dp_cmp.o dp_logb.o dp_scalb.o dp_simple.o \ + dp_tint.o dp_fint.o dp_tlong.o dp_flong.o sp_frexp.o sp_modf.o \ + sp_div.o sp_mul.o sp_sub.o sp_add.o sp_fdp.o sp_cmp.o sp_logb.o \ + sp_scalb.o sp_simple.o sp_tint.o sp_fint.o sp_tlong.o sp_flong.o \ +- dp_sqrt.o sp_sqrt.o kernel_linkage.o dsemul.o ++ dp_sqrt.o sp_sqrt.o + +--- a/arch/mips/math-emu/cp1emu.c ++++ b/arch/mips/math-emu/cp1emu.c +@@ -58,7 +58,11 @@ + #define __mips 4 + + /* Function which emulates a floating point instruction. */ ++#ifdef CONFIG_DEBUG_FS ++DEFINE_PER_CPU(struct mips_fpu_emulator_stats, fpuemustats); ++#endif + ++#ifdef CONFIG_MIPS_FPU_EMU + static int fpu_emu(struct pt_regs *, struct mips_fpu_struct *, + mips_instruction); + +@@ -69,10 +73,6 @@ static int fpux_emu(struct pt_regs *, + + /* Further private data for which no space exists in mips_fpu_struct */ + +-#ifdef CONFIG_DEBUG_FS +-DEFINE_PER_CPU(struct mips_fpu_emulator_stats, fpuemustats); +-#endif +- + /* Control registers */ + + #define FPCREG_RID 0 /* $0 = revision id */ +@@ -1361,7 +1361,6 @@ int fpu_emulator_cop1Handler(struct pt_r + + return sig; + } +- + #ifdef CONFIG_DEBUG_FS + + static int fpuemu_stat_get(void *data, u64 *val) +@@ -1410,4 +1409,11 @@ static int __init debugfs_fpuemu(void) + return 0; + } + __initcall(debugfs_fpuemu); +-#endif ++#endif /* CONFIG_DEBUGFS */ ++#else ++int fpu_emulator_cop1Handler(struct pt_regs *xcp, struct mips_fpu_struct *ctx, ++ int has_fpu) ++{ ++ return 0; ++} ++#endif /* CONFIG_MIPS_FPU_EMU */ +--- a/arch/mips/math-emu/dsemul.c ++++ b/arch/mips/math-emu/dsemul.c +@@ -109,6 +109,7 @@ int mips_dsemul(struct pt_regs *regs, mi + return SIGILL; /* force out of emulation loop */ + } + ++#ifdef CONFIG_MIPS_FPU_EMU + int do_dsemulret(struct pt_regs *xcp) + { + struct emuframe __user *fr; +@@ -165,3 +166,9 @@ int do_dsemulret(struct pt_regs *xcp) + + return 1; + } ++#else ++int do_dsemulret(struct pt_regs *xcp) ++{ ++ return 0; ++} ++#endif /* CONFIG_MIPS_FPU_EMU */ +--- a/arch/mips/math-emu/kernel_linkage.c ++++ b/arch/mips/math-emu/kernel_linkage.c +@@ -29,6 +29,7 @@ + + #define SIGNALLING_NAN 0x7ff800007ff80000LL + ++#ifdef CONFIG_MIPS_FPU_EMU + void fpu_emulator_init_fpu(void) + { + static int first = 1; +@@ -112,4 +113,36 @@ int fpu_emulator_restore_context32(struc + + return err; + } +-#endif ++#endif /* CONFIG_64BIT */ ++#else ++ ++void fpu_emulator_init_fpu(void) ++{ ++ printk(KERN_INFO "FPU emulator disabled, make sure your toolchain" ++ "was compiled with software floating point support (soft-float)\n"); ++ return; ++} ++ ++int fpu_emulator_save_context(struct sigcontext __user *sc) ++{ ++ return 0; ++} ++ ++int fpu_emulator_restore_context(struct sigcontext __user *sc) ++{ ++ return 0; ++} ++ ++int fpu_emulator_save_context32(struct sigcontext32 __user *sc) ++{ ++ return 0; ++} ++ ++int fpu_emulator_restore_context32(struct sigcontext32 __user *sc) ++{ ++ return 0; ++} ++ ++#ifdef CONFIG_64BIT ++#endif /* CONFIG_64BIT */ ++#endif /* CONFIG_MIPS_FPU_EMU */ diff --git a/target/linux/generic/patches-2.6.39/305-mips_module_reloc.patch b/target/linux/generic/patches-2.6.39/305-mips_module_reloc.patch new file mode 100644 index 00000000000..5513962cb24 --- /dev/null +++ b/target/linux/generic/patches-2.6.39/305-mips_module_reloc.patch @@ -0,0 +1,370 @@ +--- a/arch/mips/Makefile ++++ b/arch/mips/Makefile +@@ -90,8 +90,8 @@ all-$(CONFIG_SYS_SUPPORTS_ZBOOT)+= vmlin + cflags-y += -G 0 -mno-abicalls -fno-pic -pipe + cflags-y += -msoft-float + LDFLAGS_vmlinux += -G 0 -static -n -nostdlib +-KBUILD_AFLAGS_MODULE += -mlong-calls +-KBUILD_CFLAGS_MODULE += -mlong-calls ++KBUILD_AFLAGS_MODULE += -mno-long-calls ++KBUILD_CFLAGS_MODULE += -mno-long-calls + + cflags-y += -ffreestanding + +--- a/arch/mips/include/asm/module.h ++++ b/arch/mips/include/asm/module.h +@@ -9,6 +9,11 @@ struct mod_arch_specific { + struct list_head dbe_list; + const struct exception_table_entry *dbe_start; + const struct exception_table_entry *dbe_end; ++ ++ void *phys_plt_tbl; ++ void *virt_plt_tbl; ++ unsigned int phys_plt_offset; ++ unsigned int virt_plt_offset; + }; + + typedef uint8_t Elf64_Byte; /* Type for a 8-bit quantity. */ +--- a/arch/mips/kernel/module.c ++++ b/arch/mips/kernel/module.c +@@ -45,6 +45,117 @@ static struct mips_hi16 *mips_hi16_list; + static LIST_HEAD(dbe_list); + static DEFINE_SPINLOCK(dbe_lock); + ++/* ++ * Get the potential max trampolines size required of the init and ++ * non-init sections. Only used if we cannot find enough contiguous ++ * physically mapped memory to put the module into. ++ */ ++static unsigned int ++get_plt_size(const Elf_Ehdr *hdr, const Elf_Shdr *sechdrs, ++ const char *secstrings, unsigned int symindex, bool is_init) ++{ ++ unsigned long ret = 0; ++ unsigned int i, j; ++ Elf_Sym *syms; ++ ++ /* Everything marked ALLOC (this includes the exported symbols) */ ++ for (i = 1; i < hdr->e_shnum; ++i) { ++ unsigned int info = sechdrs[i].sh_info; ++ ++ if (sechdrs[i].sh_type != SHT_REL ++ && sechdrs[i].sh_type != SHT_RELA) ++ continue; ++ ++ /* Not a valid relocation section? */ ++ if (info >= hdr->e_shnum) ++ continue; ++ ++ /* Don't bother with non-allocated sections */ ++ if (!(sechdrs[info].sh_flags & SHF_ALLOC)) ++ continue; ++ ++ /* If it's called *.init*, and we're not init, we're ++ not interested */ ++ if ((strstr(secstrings + sechdrs[i].sh_name, ".init") != 0) ++ != is_init) ++ continue; ++ ++ syms = (Elf_Sym *) sechdrs[symindex].sh_addr; ++ if (sechdrs[i].sh_type == SHT_REL) { ++ Elf_Mips_Rel *rel = (void *) sechdrs[i].sh_addr; ++ unsigned int size = sechdrs[i].sh_size / sizeof(*rel); ++ ++ for (j = 0; j < size; ++j) { ++ Elf_Sym *sym; ++ ++ if (ELF_MIPS_R_TYPE(rel[j]) != R_MIPS_26) ++ continue; ++ ++ sym = syms + ELF_MIPS_R_SYM(rel[j]); ++ if (!is_init && sym->st_shndx != SHN_UNDEF) ++ continue; ++ ++ ret += 4 * sizeof(int); ++ } ++ } else { ++ Elf_Mips_Rela *rela = (void *) sechdrs[i].sh_addr; ++ unsigned int size = sechdrs[i].sh_size / sizeof(*rela); ++ ++ for (j = 0; j < size; ++j) { ++ Elf_Sym *sym; ++ ++ if (ELF_MIPS_R_TYPE(rela[j]) != R_MIPS_26) ++ continue; ++ ++ sym = syms + ELF_MIPS_R_SYM(rela[j]); ++ if (!is_init && sym->st_shndx != SHN_UNDEF) ++ continue; ++ ++ ret += 4 * sizeof(int); ++ } ++ } ++ } ++ ++ return ret; ++} ++ ++#ifndef MODULE_START ++static void *alloc_phys(unsigned long size) ++{ ++ unsigned order; ++ struct page *page; ++ struct page *p; ++ ++ size = PAGE_ALIGN(size); ++ order = get_order(size); ++ ++ page = alloc_pages(GFP_KERNEL | __GFP_NORETRY | __GFP_NOWARN | ++ __GFP_THISNODE, order); ++ if (!page) ++ return NULL; ++ ++ split_page(page, order); ++ ++ for (p = page + (size >> PAGE_SHIFT); p < page + (1 << order); ++p) ++ __free_page(p); ++ ++ return page_address(page); ++} ++#endif ++ ++static void free_phys(void *ptr, unsigned long size) ++{ ++ struct page *page; ++ struct page *end; ++ ++ page = virt_to_page(ptr); ++ end = page + (PAGE_ALIGN(size) >> PAGE_SHIFT); ++ ++ for (; page < end; ++page) ++ __free_page(page); ++} ++ ++ + void *module_alloc(unsigned long size) + { + #ifdef MODULE_START +@@ -52,21 +163,99 @@ void *module_alloc(unsigned long size) + GFP_KERNEL, PAGE_KERNEL, -1, + __builtin_return_address(0)); + #else ++ void *ptr; ++ + if (size == 0) + return NULL; +- return vmalloc(size); ++ ++ ptr = alloc_phys(size); ++ ++ /* If we failed to allocate physically contiguous memory, ++ * fall back to regular vmalloc. The module loader code will ++ * create jump tables to handle long jumps */ ++ if (!ptr) ++ return vmalloc(size); ++ ++ return ptr; ++#endif ++} ++ ++static inline bool is_phys_addr(void *ptr) ++{ ++#ifdef CONFIG_64BIT ++ return (KSEGX((unsigned long)ptr) == CKSEG0); ++#else ++ return (KSEGX(ptr) == KSEG0); + #endif + } + + /* Free memory returned from module_alloc */ + void module_free(struct module *mod, void *module_region) + { +- vfree(module_region); ++ if (is_phys_addr(module_region)) { ++ if (mod->module_init == module_region) ++ free_phys(module_region, mod->init_size); ++ else if (mod->module_core == module_region) ++ free_phys(module_region, mod->core_size); ++ else ++ BUG(); ++ } else { ++ vfree(module_region); ++ } ++} ++ ++static void *__module_alloc(int size, bool phys) ++{ ++ void *ptr; ++ ++ if (phys) ++ ptr = kmalloc(size, GFP_KERNEL); ++ else ++ ptr = vmalloc(size); ++ return ptr; ++} ++ ++static void __module_free(void *ptr) ++{ ++ if (is_phys_addr(ptr)) ++ kfree(ptr); ++ else ++ vfree(ptr); + } + + int module_frob_arch_sections(Elf_Ehdr *hdr, Elf_Shdr *sechdrs, + char *secstrings, struct module *mod) + { ++ unsigned int symindex = 0; ++ unsigned int core_size, init_size; ++ int i; ++ ++ for (i = 1; i < hdr->e_shnum; i++) ++ if (sechdrs[i].sh_type == SHT_SYMTAB) ++ symindex = i; ++ ++ core_size = get_plt_size(hdr, sechdrs, secstrings, symindex, false); ++ init_size = get_plt_size(hdr, sechdrs, secstrings, symindex, true); ++ ++ mod->arch.phys_plt_offset = 0; ++ mod->arch.virt_plt_offset = 0; ++ mod->arch.phys_plt_tbl = NULL; ++ mod->arch.virt_plt_tbl = NULL; ++ ++ if ((core_size + init_size) == 0) ++ return 0; ++ ++ mod->arch.phys_plt_tbl = __module_alloc(core_size + init_size, 1); ++ if (!mod->arch.phys_plt_tbl) ++ return -ENOMEM; ++ ++ mod->arch.virt_plt_tbl = __module_alloc(core_size + init_size, 0); ++ if (!mod->arch.virt_plt_tbl) { ++ __module_free(mod->arch.phys_plt_tbl); ++ mod->arch.phys_plt_tbl = NULL; ++ return -ENOMEM; ++ } ++ + return 0; + } + +@@ -89,28 +278,36 @@ static int apply_r_mips_32_rela(struct m + return 0; + } + +-static int apply_r_mips_26_rel(struct module *me, u32 *location, Elf_Addr v) ++static Elf_Addr add_plt_entry_to(unsigned *plt_offset, ++ void *start, Elf_Addr v) + { +- if (v % 4) { +- pr_err("module %s: dangerous R_MIPS_26 REL relocation\n", +- me->name); +- return -ENOEXEC; +- } ++ unsigned *tramp = start + *plt_offset; ++ *plt_offset += 4 * sizeof(int); + +- if ((v & 0xf0000000) != (((unsigned long)location + 4) & 0xf0000000)) { +- printk(KERN_ERR +- "module %s: relocation overflow\n", +- me->name); +- return -ENOEXEC; +- } ++ /* adjust carry for addiu */ ++ if (v & 0x00008000) ++ v += 0x10000; + +- *location = (*location & ~0x03ffffff) | +- ((*location + (v >> 2)) & 0x03ffffff); ++ tramp[0] = 0x3c190000 | (v >> 16); /* lui t9, hi16 */ ++ tramp[1] = 0x27390000 | (v & 0xffff); /* addiu t9, t9, lo16 */ ++ tramp[2] = 0x03200008; /* jr t9 */ ++ tramp[3] = 0x00000000; /* nop */ + +- return 0; ++ return (Elf_Addr) tramp; + } + +-static int apply_r_mips_26_rela(struct module *me, u32 *location, Elf_Addr v) ++static Elf_Addr add_plt_entry(struct module *me, void *location, Elf_Addr v) ++{ ++ if (is_phys_addr(location)) ++ return add_plt_entry_to(&me->arch.phys_plt_offset, ++ me->arch.phys_plt_tbl, v); ++ else ++ return add_plt_entry_to(&me->arch.virt_plt_offset, ++ me->arch.virt_plt_tbl, v); ++ ++} ++ ++static int set_r_mips_26(struct module *me, u32 *location, u32 ofs, Elf_Addr v) + { + if (v % 4) { + pr_err("module %s: dangerous R_MIPS_26 RELArelocation\n", +@@ -119,17 +316,31 @@ static int apply_r_mips_26_rela(struct m + } + + if ((v & 0xf0000000) != (((unsigned long)location + 4) & 0xf0000000)) { +- printk(KERN_ERR ++ v = add_plt_entry(me, location, v + (ofs << 2)); ++ if (!v) { ++ printk(KERN_ERR + "module %s: relocation overflow\n", + me->name); +- return -ENOEXEC; ++ return -ENOEXEC; ++ } ++ ofs = 0; + } + +- *location = (*location & ~0x03ffffff) | ((v >> 2) & 0x03ffffff); ++ *location = (*location & ~0x03ffffff) | ((ofs + (v >> 2)) & 0x03ffffff); + + return 0; + } + ++static int apply_r_mips_26_rel(struct module *me, u32 *location, Elf_Addr v) ++{ ++ return set_r_mips_26(me, location, *location & 0x03ffffff, v); ++} ++ ++static int apply_r_mips_26_rela(struct module *me, u32 *location, Elf_Addr v) ++{ ++ return set_r_mips_26(me, location, 0, v); ++} ++ + static int apply_r_mips_hi16_rel(struct module *me, u32 *location, Elf_Addr v) + { + struct mips_hi16 *n; +@@ -397,11 +608,32 @@ int module_finalize(const Elf_Ehdr *hdr, + list_add(&me->arch.dbe_list, &dbe_list); + spin_unlock_irq(&dbe_lock); + } ++ ++ /* Get rid of the fixup trampoline if we're running the module ++ * from physically mapped address space */ ++ if (me->arch.phys_plt_offset == 0) { ++ __module_free(me->arch.phys_plt_tbl); ++ me->arch.phys_plt_tbl = NULL; ++ } ++ if (me->arch.virt_plt_offset == 0) { ++ __module_free(me->arch.virt_plt_tbl); ++ me->arch.virt_plt_tbl = NULL; ++ } ++ + return 0; + } + + void module_arch_cleanup(struct module *mod) + { ++ if (mod->arch.phys_plt_tbl) { ++ __module_free(mod->arch.phys_plt_tbl); ++ mod->arch.phys_plt_tbl = NULL; ++ } ++ if (mod->arch.virt_plt_tbl) { ++ __module_free(mod->arch.virt_plt_tbl); ++ mod->arch.virt_plt_tbl = NULL; ++ } ++ + spin_lock_irq(&dbe_lock); + list_del(&mod->arch.dbe_list); + spin_unlock_irq(&dbe_lock); diff --git a/target/linux/generic/patches-2.6.39/306-mips_mem_functions_performance.patch b/target/linux/generic/patches-2.6.39/306-mips_mem_functions_performance.patch new file mode 100644 index 00000000000..6ea9ba51ee0 --- /dev/null +++ b/target/linux/generic/patches-2.6.39/306-mips_mem_functions_performance.patch @@ -0,0 +1,83 @@ +--- a/arch/mips/include/asm/string.h ++++ b/arch/mips/include/asm/string.h +@@ -133,11 +133,44 @@ strncmp(__const__ char *__cs, __const__ + + #define __HAVE_ARCH_MEMSET + extern void *memset(void *__s, int __c, size_t __count); ++#define memset(__s, __c, len) \ ++({ \ ++ size_t __len = (len); \ ++ void *__ret; \ ++ if (__builtin_constant_p(len) && __len >= 64) \ ++ __ret = memset((__s), (__c), __len); \ ++ else \ ++ __ret = __builtin_memset((__s), (__c), __len); \ ++ __ret; \ ++}) + + #define __HAVE_ARCH_MEMCPY + extern void *memcpy(void *__to, __const__ void *__from, size_t __n); ++#define memcpy(dst, src, len) \ ++({ \ ++ size_t __len = (len); \ ++ void *__ret; \ ++ if (__builtin_constant_p(len) && __len >= 64) \ ++ __ret = memcpy((dst), (src), __len); \ ++ else \ ++ __ret = __builtin_memcpy((dst), (src), __len); \ ++ __ret; \ ++}) + + #define __HAVE_ARCH_MEMMOVE + extern void *memmove(void *__dest, __const__ void *__src, size_t __n); ++#define memmove(dst, src, len) \ ++({ \ ++ size_t __len = (len); \ ++ void *__ret; \ ++ if (__builtin_constant_p(len) && __len >= 64) \ ++ __ret = memmove((dst), (src), __len); \ ++ else \ ++ __ret = __builtin_memmove((dst), (src), __len); \ ++ __ret; \ ++}) ++ ++#define __HAVE_ARCH_MEMCMP ++#define memcmp(src1, src2, len) __builtin_memcmp((src1), (src2), (len)) + + #endif /* _ASM_STRING_H */ +--- a/arch/mips/lib/Makefile ++++ b/arch/mips/lib/Makefile +@@ -3,7 +3,7 @@ + # + + lib-y += csum_partial.o delay.o memcpy.o memcpy-inatomic.o memset.o \ +- strlen_user.o strncpy_user.o strnlen_user.o uncached.o ++ strlen_user.o strncpy_user.o strnlen_user.o uncached.o memcmp.o + + obj-y += iomap.o + obj-$(CONFIG_PCI) += iomap-pci.o +--- /dev/null ++++ b/arch/mips/lib/memcmp.c +@@ -0,0 +1,22 @@ ++/* ++ * copied from linux/lib/string.c ++ * ++ * Copyright (C) 1991, 1992 Linus Torvalds ++ */ ++ ++#include ++#include ++ ++#undef memcmp ++int memcmp(const void *cs, const void *ct, size_t count) ++{ ++ const unsigned char *su1, *su2; ++ int res = 0; ++ ++ for (su1 = cs, su2 = ct; 0 < count; ++su1, ++su2, count--) ++ if ((res = *su1 - *su2) != 0) ++ break; ++ return res; ++} ++EXPORT_SYMBOL(memcmp); ++ diff --git a/target/linux/generic/patches-2.6.39/307-mips_oprofile_fix.patch b/target/linux/generic/patches-2.6.39/307-mips_oprofile_fix.patch new file mode 100644 index 00000000000..f83c96bb81f --- /dev/null +++ b/target/linux/generic/patches-2.6.39/307-mips_oprofile_fix.patch @@ -0,0 +1,35 @@ +--- a/arch/mips/oprofile/op_model_mipsxx.c ++++ b/arch/mips/oprofile/op_model_mipsxx.c +@@ -298,6 +298,11 @@ static void reset_counters(void *arg) + } + } + ++static irqreturn_t mipsxx_perfcount_int(int irq, void *dev_id) ++{ ++ return mipsxx_perfcount_handler(); ++} ++ + static int __init mipsxx_init(void) + { + int counters; +@@ -374,6 +379,10 @@ static int __init mipsxx_init(void) + save_perf_irq = perf_irq; + perf_irq = mipsxx_perfcount_handler; + ++ if (cp0_perfcount_irq >= 0) ++ return request_irq(cp0_perfcount_irq, mipsxx_perfcount_int, ++ IRQF_SHARED, "Perfcounter", save_perf_irq); ++ + return 0; + } + +@@ -381,6 +390,9 @@ static void mipsxx_exit(void) + { + int counters = op_model_mipsxx_ops.num_counters; + ++ if (cp0_perfcount_irq >= 0) ++ free_irq(cp0_perfcount_irq, save_perf_irq); ++ + counters = counters_per_cpu_to_total(counters); + on_each_cpu(reset_counters, (void *)(long)counters, 1); + diff --git a/target/linux/generic/patches-2.6.39/310-arm_module_unresolved_weak_sym.patch b/target/linux/generic/patches-2.6.39/310-arm_module_unresolved_weak_sym.patch new file mode 100644 index 00000000000..c63ff676880 --- /dev/null +++ b/target/linux/generic/patches-2.6.39/310-arm_module_unresolved_weak_sym.patch @@ -0,0 +1,13 @@ +--- a/arch/arm/kernel/module.c ++++ b/arch/arm/kernel/module.c +@@ -99,6 +99,10 @@ apply_relocate(Elf32_Shdr *sechdrs, cons + return -ENOEXEC; + } + ++ if ((IS_ERR_VALUE(sym->st_value) || !sym->st_value) && ++ ELF_ST_BIND(sym->st_info) == STB_WEAK) ++ continue; ++ + loc = dstsec->sh_addr + rel->r_offset; + + switch (ELF32_R_TYPE(rel->r_info)) { diff --git a/target/linux/generic/patches-2.6.39/310-usb-add-usb_find_device_by_name.patch b/target/linux/generic/patches-2.6.39/310-usb-add-usb_find_device_by_name.patch deleted file mode 100644 index 3aeda678fce..00000000000 --- a/target/linux/generic/patches-2.6.39/310-usb-add-usb_find_device_by_name.patch +++ /dev/null @@ -1,84 +0,0 @@ ---- a/drivers/usb/core/usb.c -+++ b/drivers/usb/core/usb.c -@@ -651,6 +651,71 @@ int __usb_get_extra_descriptor(char *buf - } - EXPORT_SYMBOL_GPL(__usb_get_extra_descriptor); - -+static struct usb_device *match_device_name(struct usb_device *dev, -+ const char *name) -+{ -+ struct usb_device *ret_dev = NULL; -+ int child; -+ -+ dev_dbg(&dev->dev, "check for name %s ...\n", name); -+ -+ /* see if this device matches */ -+ if (strcmp(dev_name(&dev->dev), name) == 0 ) { -+ dev_dbg(&dev->dev, "matched this device!\n"); -+ ret_dev = usb_get_dev(dev); -+ goto exit; -+ } -+ -+ /* look through all of the children of this device */ -+ for (child = 0; child < dev->maxchild; ++child) { -+ if (dev->children[child]) { -+ usb_lock_device(dev->children[child]); -+ ret_dev = match_device_name(dev->children[child], name); -+ usb_unlock_device(dev->children[child]); -+ if (ret_dev) -+ goto exit; -+ } -+ } -+exit: -+ return ret_dev; -+} -+ -+/** -+ * usb_find_device_by_name - find a specific usb device in the system -+ * @name: the name of the device to find -+ * -+ * Returns a pointer to a struct usb_device if such a specified usb -+ * device is present in the system currently. The usage count of the -+ * device will be incremented if a device is found. Make sure to call -+ * usb_put_dev() when the caller is finished with the device. -+ * -+ * If a device with the specified bus id is not found, NULL is returned. -+ */ -+struct usb_device *usb_find_device_by_name(const char *name) -+{ -+ struct list_head *buslist; -+ struct usb_bus *bus; -+ struct usb_device *dev = NULL; -+ -+ mutex_lock(&usb_bus_list_lock); -+ for (buslist = usb_bus_list.next; -+ buslist != &usb_bus_list; -+ buslist = buslist->next) { -+ bus = container_of(buslist, struct usb_bus, bus_list); -+ if (!bus->root_hub) -+ continue; -+ usb_lock_device(bus->root_hub); -+ dev = match_device_name(bus->root_hub, name); -+ usb_unlock_device(bus->root_hub); -+ if (dev) -+ goto exit; -+ } -+exit: -+ mutex_unlock(&usb_bus_list_lock); -+ return dev; -+} -+EXPORT_SYMBOL_GPL(usb_find_device_by_name); -+ - /** - * usb_alloc_coherent - allocate dma-consistent buffer for URB_NO_xxx_DMA_MAP - * @dev: device the buffer will be used with ---- a/include/linux/usb.h -+++ b/include/linux/usb.h -@@ -513,6 +513,7 @@ extern int usb_lock_device_for_reset(str - extern int usb_reset_device(struct usb_device *dev); - extern void usb_queue_reset_device(struct usb_interface *dev); - -+extern struct usb_device *usb_find_device_by_name(const char *name); - - /* USB autosuspend and autoresume */ - #ifdef CONFIG_USB_SUSPEND diff --git a/target/linux/generic/patches-2.6.39/320-ppc4xx_optimization.patch b/target/linux/generic/patches-2.6.39/320-ppc4xx_optimization.patch new file mode 100644 index 00000000000..49d36592861 --- /dev/null +++ b/target/linux/generic/patches-2.6.39/320-ppc4xx_optimization.patch @@ -0,0 +1,31 @@ +Upstream doesn't optimize the kernel and bootwrappers for ppc44x because +they still want to support gcc 3.3 -- well, we don't. + +--- a/arch/powerpc/Makefile ++++ b/arch/powerpc/Makefile +@@ -130,7 +130,8 @@ ifeq ($(CONFIG_FUNCTION_TRACER),y) + KBUILD_CFLAGS += -mno-sched-epilog + endif + +-cpu-as-$(CONFIG_4xx) += -Wa,-m405 ++cpu-as-$(CONFIG_40x) += -Wa,-m405 ++cpu-as-$(CONFIG_44x) += -Wa,-m440 + cpu-as-$(CONFIG_6xx) += -Wa,-maltivec + cpu-as-$(CONFIG_POWER4) += -Wa,-maltivec + cpu-as-$(CONFIG_E500) += -Wa,-me500 +--- a/arch/powerpc/boot/Makefile ++++ b/arch/powerpc/boot/Makefile +@@ -38,10 +38,10 @@ BOOTCFLAGS += -I$(obj) -I$(srctree)/$(ob + DTC_FLAGS ?= -p 1024 + + $(obj)/4xx.o: BOOTCFLAGS += -mcpu=405 +-$(obj)/ebony.o: BOOTCFLAGS += -mcpu=405 ++$(obj)/ebony.o: BOOTCFLAGS += -mcpu=440 + $(obj)/cuboot-hotfoot.o: BOOTCFLAGS += -mcpu=405 +-$(obj)/cuboot-taishan.o: BOOTCFLAGS += -mcpu=405 +-$(obj)/cuboot-katmai.o: BOOTCFLAGS += -mcpu=405 ++$(obj)/cuboot-taishan.o: BOOTCFLAGS += -mcpu=440 ++$(obj)/cuboot-katmai.o: BOOTCFLAGS += -mcpu=440 + $(obj)/cuboot-acadia.o: BOOTCFLAGS += -mcpu=405 + $(obj)/treeboot-walnut.o: BOOTCFLAGS += -mcpu=405 + $(obj)/treeboot-iss4xx.o: BOOTCFLAGS += -mcpu=405 diff --git a/target/linux/generic/patches-2.6.39/321-powerpc_crtsavres_prereq.patch b/target/linux/generic/patches-2.6.39/321-powerpc_crtsavres_prereq.patch new file mode 100644 index 00000000000..e1a141b4fe2 --- /dev/null +++ b/target/linux/generic/patches-2.6.39/321-powerpc_crtsavres_prereq.patch @@ -0,0 +1,56 @@ +--- a/Makefile ++++ b/Makefile +@@ -366,6 +366,7 @@ KBUILD_AFLAGS := -D__ASSEMBLY__ + KBUILD_AFLAGS_MODULE := -DMODULE + KBUILD_CFLAGS_MODULE := -DMODULE + KBUILD_LDFLAGS_MODULE := -T $(srctree)/scripts/module-common.lds ++KBUILD_LDFLAGS_MODULE_PREREQ := + + # Read KERNELRELEASE from include/config/kernel.release (if it exists) + KERNELRELEASE = $(shell cat include/config/kernel.release 2> /dev/null) +@@ -375,7 +376,7 @@ export VERSION PATCHLEVEL SUBLEVEL KERNE + export ARCH SRCARCH CONFIG_SHELL HOSTCC HOSTCFLAGS CROSS_COMPILE AS LD CC + export CPP AR NM STRIP OBJCOPY OBJDUMP + export MAKE AWK GENKSYMS INSTALLKERNEL PERL UTS_MACHINE +-export HOSTCXX HOSTCXXFLAGS LDFLAGS_MODULE CHECK CHECKFLAGS ++export HOSTCXX HOSTCXXFLAGS LDFLAGS_MODULE KBUILD_LDFLAGS_MODULE_PREREQ CHECK CHECKFLAGS + + export KBUILD_CPPFLAGS NOSTDINC_FLAGS LINUXINCLUDE OBJCOPYFLAGS LDFLAGS + export KBUILD_CFLAGS CFLAGS_KERNEL CFLAGS_MODULE CFLAGS_GCOV +--- a/arch/powerpc/Makefile ++++ b/arch/powerpc/Makefile +@@ -94,7 +94,7 @@ else + endif + endif + +-KBUILD_LDFLAGS_MODULE += arch/powerpc/lib/crtsavres.o ++KBUILD_LDFLAGS_MODULE_PREREQ += arch/powerpc/lib/crtsavres.o + + ifeq ($(CONFIG_TUNE_CELL),y) + KBUILD_CFLAGS += $(call cc-option,-mtune=cell) +--- a/scripts/Makefile.modpost ++++ b/scripts/Makefile.modpost +@@ -110,7 +110,14 @@ quiet_cmd_cc_o_c = CC $@ + cmd_cc_o_c = $(CC) $(c_flags) $(KBUILD_CFLAGS_MODULE) $(CFLAGS_MODULE) \ + -c -o $@ $< + +-$(modules:.ko=.mod.o): %.mod.o: %.mod.c FORCE ++quiet_cmd_as_o_S = AS $(quiet_modtag) $@ ++cmd_as_o_S = $(CC) $(a_flags) $(AFLAGS_MODULE) -c -o $@ $< ++ ++$(KBUILD_LDFLAGS_MODULE_PREREQ): %.o: %.S FORCE ++ $(Q)mkdir -p $(dir $@) ++ $(call if_changed_dep,as_o_S) ++ ++$(modules:.ko=.mod.o): %.mod.o: %.mod.c $(KBUILD_LDFLAGS_MODULE_PREREQ) FORCE + $(call if_changed_dep,cc_o_c) + + targets += $(modules:.ko=.mod.o) +@@ -119,6 +126,7 @@ targets += $(modules:.ko=.mod.o) + quiet_cmd_ld_ko_o = LD [M] $@ + cmd_ld_ko_o = $(LD) -r $(LDFLAGS) \ + $(KBUILD_LDFLAGS_MODULE) $(LDFLAGS_MODULE) \ ++ $(KBUILD_LDFLAGS_MODULE_PREREQ) \ + -o $@ $(filter-out FORCE,$^) + + $(modules): %.ko :%.o %.mod.o FORCE diff --git a/target/linux/generic/patches-2.6.39/400-ledtrig_morse.patch b/target/linux/generic/patches-2.6.39/400-ledtrig_morse.patch deleted file mode 100644 index 2edc4f33cb3..00000000000 --- a/target/linux/generic/patches-2.6.39/400-ledtrig_morse.patch +++ /dev/null @@ -1,18 +0,0 @@ ---- a/drivers/leds/Kconfig -+++ b/drivers/leds/Kconfig -@@ -449,4 +449,8 @@ config LEDS_TRIGGER_DEFAULT_ON - comment "iptables trigger is under Netfilter config (LED target)" - depends on LEDS_TRIGGERS - -+config LEDS_TRIGGER_MORSE -+ tristate "LED Morse Trigger" -+ depends on LEDS_TRIGGERS -+ - endif # NEW_LEDS ---- a/drivers/leds/Makefile -+++ b/drivers/leds/Makefile -@@ -53,3 +53,4 @@ obj-$(CONFIG_LEDS_TRIGGER_HEARTBEAT) += - obj-$(CONFIG_LEDS_TRIGGER_BACKLIGHT) += ledtrig-backlight.o - obj-$(CONFIG_LEDS_TRIGGER_GPIO) += ledtrig-gpio.o - obj-$(CONFIG_LEDS_TRIGGER_DEFAULT_ON) += ledtrig-default-on.o -+obj-$(CONFIG_LEDS_TRIGGER_MORSE) += ledtrig-morse.o diff --git a/target/linux/generic/patches-2.6.39/400-rootfs_split.patch b/target/linux/generic/patches-2.6.39/400-rootfs_split.patch new file mode 100644 index 00000000000..45072bab226 --- /dev/null +++ b/target/linux/generic/patches-2.6.39/400-rootfs_split.patch @@ -0,0 +1,329 @@ +--- a/drivers/mtd/Kconfig ++++ b/drivers/mtd/Kconfig +@@ -47,6 +47,16 @@ config MTD_PARTITIONS + + if MTD_PARTITIONS + ++config MTD_ROOTFS_ROOT_DEV ++ bool "Automatically set 'rootfs' partition to be root filesystem" ++ depends on MTD_PARTITIONS ++ default y ++ ++config MTD_ROOTFS_SPLIT ++ bool "Automatically split 'rootfs' partition for squashfs" ++ depends on MTD_PARTITIONS ++ default y ++ + config MTD_REDBOOT_PARTS + tristate "RedBoot partition table parsing" + ---help--- +--- a/drivers/mtd/mtdpart.c ++++ b/drivers/mtd/mtdpart.c +@@ -29,6 +29,8 @@ + #include + #include + #include ++#include ++#include + #include + + /* Our partition linked list */ +@@ -48,7 +50,7 @@ struct mtd_part { + * the pointer to that structure with this macro. + */ + #define PART(x) ((struct mtd_part *)(x)) +- ++#define IS_PART(mtd) (mtd->read == part_read) + + /* + * MTD methods which simply translate the effective address and pass through +@@ -636,6 +638,153 @@ int mtd_del_partition(struct mtd_info *m + } + EXPORT_SYMBOL_GPL(mtd_del_partition); + ++#ifdef CONFIG_MTD_ROOTFS_SPLIT ++#define ROOTFS_SPLIT_NAME "rootfs_data" ++#define ROOTFS_REMOVED_NAME "" ++ ++struct squashfs_super_block { ++ __le32 s_magic; ++ __le32 pad0[9]; ++ __le64 bytes_used; ++}; ++ ++ ++static int split_squashfs(struct mtd_info *master, int offset, int *split_offset) ++{ ++ struct squashfs_super_block sb; ++ int len, ret; ++ ++ ret = master->read(master, offset, sizeof(sb), &len, (void *) &sb); ++ if (ret || (len != sizeof(sb))) { ++ printk(KERN_ALERT "split_squashfs: error occured while reading " ++ "from \"%s\"\n", master->name); ++ return -EINVAL; ++ } ++ ++ if (SQUASHFS_MAGIC != le32_to_cpu(sb.s_magic) ) { ++ printk(KERN_ALERT "split_squashfs: no squashfs found in \"%s\"\n", ++ master->name); ++ *split_offset = 0; ++ return 0; ++ } ++ ++ if (le64_to_cpu((sb.bytes_used)) <= 0) { ++ printk(KERN_ALERT "split_squashfs: squashfs is empty in \"%s\"\n", ++ master->name); ++ *split_offset = 0; ++ return 0; ++ } ++ ++ len = (u32) le64_to_cpu(sb.bytes_used); ++ len += (offset & 0x000fffff); ++ len += (master->erasesize - 1); ++ len &= ~(master->erasesize - 1); ++ len -= (offset & 0x000fffff); ++ *split_offset = offset + len; ++ ++ return 0; ++} ++ ++static int split_rootfs_data(struct mtd_info *master, struct mtd_info *rpart, const struct mtd_partition *part) ++{ ++ struct mtd_partition *dpart; ++ struct mtd_part *slave = NULL; ++ int ret, split_offset = 0; ++ ++ ret = split_squashfs(master, part->offset, &split_offset); ++ if (ret) ++ return ret; ++ ++ if (split_offset <= 0) ++ return 0; ++ ++ dpart = kmalloc(sizeof(*part)+sizeof(ROOTFS_SPLIT_NAME)+1, GFP_KERNEL); ++ if (dpart == NULL) { ++ printk(KERN_INFO "split_squashfs: no memory for partition \"%s\"\n", ++ ROOTFS_SPLIT_NAME); ++ return -ENOMEM; ++ } ++ ++ memcpy(dpart, part, sizeof(*part)); ++ dpart->name = (unsigned char *)&dpart[1]; ++ strcpy(dpart->name, ROOTFS_SPLIT_NAME); ++ ++ dpart->size -= split_offset - dpart->offset; ++ dpart->offset = split_offset; ++ ++ if (dpart == NULL) ++ return 1; ++ ++ printk(KERN_INFO "mtd: partition \"%s\" created automatically, ofs=%llX, len=%llX \n", ++ ROOTFS_SPLIT_NAME, dpart->offset, dpart->size); ++ ++ slave = allocate_partition(master, dpart, 0, split_offset); ++ if (IS_ERR(slave)) ++ return PTR_ERR(slave); ++ mutex_lock(&mtd_partitions_mutex); ++ list_add(&slave->list, &mtd_partitions); ++ mutex_unlock(&mtd_partitions_mutex); ++ ++ add_mtd_device(&slave->mtd); ++ ++ rpart->split = &slave->mtd; ++ ++ return 0; ++} ++ ++static int refresh_rootfs_split(struct mtd_info *mtd) ++{ ++ struct mtd_partition tpart; ++ struct mtd_part *part; ++ char *name; ++ //int index = 0; ++ int offset, size; ++ int ret; ++ ++ part = PART(mtd); ++ ++ /* check for the new squashfs offset first */ ++ ret = split_squashfs(part->master, part->offset, &offset); ++ if (ret) ++ return ret; ++ ++ if ((offset > 0) && !mtd->split) { ++ printk(KERN_INFO "%s: creating new split partition for \"%s\"\n", __func__, mtd->name); ++ /* if we don't have a rootfs split partition, create a new one */ ++ tpart.name = (char *) mtd->name; ++ tpart.size = mtd->size; ++ tpart.offset = part->offset; ++ ++ return split_rootfs_data(part->master, &part->mtd, &tpart); ++ } else if ((offset > 0) && mtd->split) { ++ /* update the offsets of the existing partition */ ++ size = mtd->size + part->offset - offset; ++ ++ part = PART(mtd->split); ++ part->offset = offset; ++ part->mtd.size = size; ++ printk(KERN_INFO "%s: %s partition \"" ROOTFS_SPLIT_NAME "\", offset: 0x%06x (0x%06x)\n", ++ __func__, (!strcmp(part->mtd.name, ROOTFS_SPLIT_NAME) ? "updating" : "creating"), ++ (u32) part->offset, (u32) part->mtd.size); ++ name = kmalloc(sizeof(ROOTFS_SPLIT_NAME) + 1, GFP_KERNEL); ++ strcpy(name, ROOTFS_SPLIT_NAME); ++ part->mtd.name = name; ++ } else if ((offset <= 0) && mtd->split) { ++ printk(KERN_INFO "%s: removing partition \"%s\"\n", __func__, mtd->split->name); ++ ++ /* mark existing partition as removed */ ++ part = PART(mtd->split); ++ name = kmalloc(sizeof(ROOTFS_SPLIT_NAME) + 1, GFP_KERNEL); ++ strcpy(name, ROOTFS_REMOVED_NAME); ++ part->mtd.name = name; ++ part->offset = 0; ++ part->mtd.size = 0; ++ } ++ ++ return 0; ++} ++#endif /* CONFIG_MTD_ROOTFS_SPLIT */ ++ + /* + * This function, given a master MTD object and a partition table, creates + * and registers slave MTD objects which are bound to the master according to +@@ -652,6 +801,9 @@ int add_mtd_partitions(struct mtd_info * + struct mtd_part *slave; + uint64_t cur_offset = 0; + int i; ++#ifdef CONFIG_MTD_ROOTFS_SPLIT ++ int ret; ++#endif + + printk(KERN_NOTICE "Creating %d MTD partitions on \"%s\":\n", nbparts, master->name); + +@@ -666,6 +818,21 @@ int add_mtd_partitions(struct mtd_info * + + add_mtd_device(&slave->mtd); + ++ if (!strcmp(parts[i].name, "rootfs")) { ++#ifdef CONFIG_MTD_ROOTFS_ROOT_DEV ++ if (ROOT_DEV == 0) { ++ printk(KERN_NOTICE "mtd: partition \"rootfs\" " ++ "set to be root filesystem\n"); ++ ROOT_DEV = MKDEV(MTD_BLOCK_MAJOR, slave->mtd.index); ++ } ++#endif ++#ifdef CONFIG_MTD_ROOTFS_SPLIT ++ ret = split_rootfs_data(master, &slave->mtd, &parts[i]); ++ /* if (ret == 0) ++ * j++; */ ++#endif ++ } ++ + cur_offset = slave->offset + slave->mtd.size; + } + +@@ -673,6 +840,32 @@ int add_mtd_partitions(struct mtd_info * + } + EXPORT_SYMBOL(add_mtd_partitions); + ++int refresh_mtd_partitions(struct mtd_info *mtd) ++{ ++ int ret = 0; ++ ++ if (IS_PART(mtd)) { ++ struct mtd_part *part; ++ struct mtd_info *master; ++ ++ part = PART(mtd); ++ master = part->master; ++ if (master->refresh_device) ++ ret = master->refresh_device(master); ++ } ++ ++ if (!ret && mtd->refresh_device) ++ ret = mtd->refresh_device(mtd); ++ ++#ifdef CONFIG_MTD_ROOTFS_SPLIT ++ if (!ret && IS_PART(mtd) && !strcmp(mtd->name, "rootfs")) ++ refresh_rootfs_split(mtd); ++#endif ++ ++ return 0; ++} ++EXPORT_SYMBOL_GPL(refresh_mtd_partitions); ++ + static DEFINE_SPINLOCK(part_parser_lock); + static LIST_HEAD(part_parsers); + +--- a/drivers/mtd/mtdchar.c ++++ b/drivers/mtd/mtdchar.c +@@ -841,6 +841,13 @@ static int mtd_ioctl(struct file *file, + file->f_pos = 0; + break; + } ++#ifdef CONFIG_MTD_PARTITIONS ++ case MTDREFRESH: ++ { ++ ret = refresh_mtd_partitions(mtd); ++ break; ++ } ++#endif + + case OTPGETREGIONCOUNT: + case OTPGETREGIONINFO: +--- a/include/linux/mtd/mtd.h ++++ b/include/linux/mtd/mtd.h +@@ -125,6 +125,7 @@ struct nand_ecclayout { + struct nand_oobfree oobfree[MTD_MAX_OOBFREE_ENTRIES_LARGE]; + }; + ++struct mtd_info; + struct mtd_info { + u_char type; + uint32_t flags; +@@ -277,6 +278,9 @@ struct mtd_info { + struct device dev; + int usecount; + ++ int (*refresh_device)(struct mtd_info *mtd); ++ struct mtd_info *split; ++ + /* If the driver is something smart, like UBI, it may need to maintain + * its own reference counting. The below functions are only for driver. + * The driver may register its callbacks. These callbacks are not +--- a/include/linux/mtd/partitions.h ++++ b/include/linux/mtd/partitions.h +@@ -34,12 +34,14 @@ + * erasesize aligned (e.g. use MTDPART_OFS_NEXTBLK). + */ + ++struct mtd_partition; + struct mtd_partition { + char *name; /* identifier string */ + uint64_t size; /* partition size */ + uint64_t offset; /* offset within the master MTD space */ + uint32_t mask_flags; /* master MTD flags to mask out for this partition */ + struct nand_ecclayout *ecclayout; /* out of band layout for this partition (NAND only) */ ++ int (*refresh_partition)(struct mtd_info *); + }; + + #define MTDPART_OFS_NXTBLK (-2) +@@ -51,6 +53,7 @@ struct mtd_info; + + int add_mtd_partitions(struct mtd_info *, const struct mtd_partition *, int); + int del_mtd_partitions(struct mtd_info *); ++int refresh_mtd_partitions(struct mtd_info *); + + /* + * Functions dealing with the various ways of partitioning the space +--- a/include/mtd/mtd-abi.h ++++ b/include/mtd/mtd-abi.h +@@ -127,6 +127,7 @@ struct otp_info { + #define MEMWRITEOOB64 _IOWR('M', 21, struct mtd_oob_buf64) + #define MEMREADOOB64 _IOWR('M', 22, struct mtd_oob_buf64) + #define MEMISLOCKED _IOR('M', 23, struct erase_info_user) ++#define MTDREFRESH _IO('M', 23) + + /* + * Obsolete legacy interface. Keep it in order not to break userspace diff --git a/target/linux/generic/patches-2.6.39/401-partial_eraseblock_write.patch b/target/linux/generic/patches-2.6.39/401-partial_eraseblock_write.patch new file mode 100644 index 00000000000..873c0d1cb17 --- /dev/null +++ b/target/linux/generic/patches-2.6.39/401-partial_eraseblock_write.patch @@ -0,0 +1,145 @@ +--- a/drivers/mtd/mtdpart.c ++++ b/drivers/mtd/mtdpart.c +@@ -33,6 +33,8 @@ + #include + #include + ++#define MTD_ERASE_PARTIAL 0x8000 /* partition only covers parts of an erase block */ ++ + /* Our partition linked list */ + static LIST_HEAD(mtd_partitions); + static DEFINE_MUTEX(mtd_partitions_mutex); +@@ -256,13 +258,60 @@ static int part_erase(struct mtd_info *m + return -EROFS; + if (instr->addr >= mtd->size) + return -EINVAL; ++ ++ instr->partial_start = false; ++ if (mtd->flags & MTD_ERASE_PARTIAL) { ++ size_t readlen = 0; ++ u64 mtd_ofs; ++ ++ instr->erase_buf = kmalloc(part->master->erasesize, GFP_ATOMIC); ++ if (!instr->erase_buf) ++ return -ENOMEM; ++ ++ mtd_ofs = part->offset + instr->addr; ++ instr->erase_buf_ofs = do_div(mtd_ofs, part->master->erasesize); ++ ++ if (instr->erase_buf_ofs > 0) { ++ instr->addr -= instr->erase_buf_ofs; ++ ret = part->master->read(part->master, ++ instr->addr + part->offset, ++ part->master->erasesize, ++ &readlen, instr->erase_buf); ++ ++ instr->partial_start = true; ++ } else { ++ mtd_ofs = part->offset + part->mtd.size; ++ instr->erase_buf_ofs = part->master->erasesize - ++ do_div(mtd_ofs, part->master->erasesize); ++ ++ if (instr->erase_buf_ofs > 0) { ++ instr->len += instr->erase_buf_ofs; ++ ret = part->master->read(part->master, ++ part->offset + instr->addr + ++ instr->len - part->master->erasesize, ++ part->master->erasesize, &readlen, ++ instr->erase_buf); ++ } else { ++ ret = 0; ++ } ++ } ++ if (ret < 0) { ++ kfree(instr->erase_buf); ++ return ret; ++ } ++ ++ } ++ + instr->addr += part->offset; + ret = part->master->erase(part->master, instr); + if (ret) { + if (instr->fail_addr != MTD_FAIL_ADDR_UNKNOWN) + instr->fail_addr -= part->offset; + instr->addr -= part->offset; ++ if (mtd->flags & MTD_ERASE_PARTIAL) ++ kfree(instr->erase_buf); + } ++ + return ret; + } + +@@ -270,7 +319,25 @@ void mtd_erase_callback(struct erase_inf + { + if (instr->mtd->erase == part_erase) { + struct mtd_part *part = PART(instr->mtd); ++ size_t wrlen = 0; + ++ if (instr->mtd->flags & MTD_ERASE_PARTIAL) { ++ if (instr->partial_start) { ++ part->master->write(part->master, ++ instr->addr, instr->erase_buf_ofs, ++ &wrlen, instr->erase_buf); ++ instr->addr += instr->erase_buf_ofs; ++ } else { ++ instr->len -= instr->erase_buf_ofs; ++ part->master->write(part->master, ++ instr->addr + instr->len, ++ instr->erase_buf_ofs, &wrlen, ++ instr->erase_buf + ++ part->master->erasesize - ++ instr->erase_buf_ofs); ++ } ++ kfree(instr->erase_buf); ++ } + if (instr->fail_addr != MTD_FAIL_ADDR_UNKNOWN) + instr->fail_addr -= part->offset; + instr->addr -= part->offset; +@@ -529,18 +596,24 @@ static struct mtd_part *allocate_partiti + if ((slave->mtd.flags & MTD_WRITEABLE) && + mtd_mod_by_eb(slave->offset, &slave->mtd)) { + /* Doesn't start on a boundary of major erase size */ +- /* FIXME: Let it be writable if it is on a boundary of +- * _minor_ erase size though */ +- slave->mtd.flags &= ~MTD_WRITEABLE; +- printk(KERN_WARNING"mtd: partition \"%s\" doesn't start on an erase block boundary -- force read-only\n", +- part->name); ++ slave->mtd.flags |= MTD_ERASE_PARTIAL; ++ if (((u32) slave->mtd.size) > master->erasesize) ++ slave->mtd.flags &= ~MTD_WRITEABLE; ++ else ++ slave->mtd.erasesize = slave->mtd.size; + } + if ((slave->mtd.flags & MTD_WRITEABLE) && +- mtd_mod_by_eb(slave->mtd.size, &slave->mtd)) { +- slave->mtd.flags &= ~MTD_WRITEABLE; +- printk(KERN_WARNING"mtd: partition \"%s\" doesn't end on an erase block -- force read-only\n", +- part->name); ++ mtd_mod_by_eb(slave->offset + slave->mtd.size, &slave->mtd)) { ++ slave->mtd.flags |= MTD_ERASE_PARTIAL; ++ ++ if ((u32) slave->mtd.size > master->erasesize) ++ slave->mtd.flags &= ~MTD_WRITEABLE; ++ else ++ slave->mtd.erasesize = slave->mtd.size; + } ++ if ((slave->mtd.flags & (MTD_ERASE_PARTIAL|MTD_WRITEABLE)) == MTD_ERASE_PARTIAL) ++ printk(KERN_WARNING"mtd: partition \"%s\" must either start or end on erase block boundary or be smaller than an erase block -- forcing read-only\n", ++ part->name); + + slave->mtd.ecclayout = master->ecclayout; + if (master->block_isbad) { +--- a/include/linux/mtd/mtd.h ++++ b/include/linux/mtd/mtd.h +@@ -57,6 +57,10 @@ struct erase_info { + u_long priv; + u_char state; + struct erase_info *next; ++ ++ u8 *erase_buf; ++ u32 erase_buf_ofs; ++ bool partial_start; + }; + + struct mtd_erase_region_info { diff --git a/target/linux/generic/patches-2.6.39/402-ledtrig_netdev.patch b/target/linux/generic/patches-2.6.39/402-ledtrig_netdev.patch deleted file mode 100644 index 413174006c9..00000000000 --- a/target/linux/generic/patches-2.6.39/402-ledtrig_netdev.patch +++ /dev/null @@ -1,43 +0,0 @@ ---- a/drivers/leds/Kconfig -+++ b/drivers/leds/Kconfig -@@ -453,4 +453,11 @@ config LEDS_TRIGGER_MORSE - tristate "LED Morse Trigger" - depends on LEDS_TRIGGERS - -+config LEDS_TRIGGER_NETDEV -+ tristate "LED Netdev Trigger" -+ depends on NET && LEDS_TRIGGERS -+ help -+ This allows LEDs to be controlled by network device activity. -+ If unsure, say Y. -+ - endif # NEW_LEDS ---- a/drivers/leds/Makefile -+++ b/drivers/leds/Makefile -@@ -54,3 +54,4 @@ obj-$(CONFIG_LEDS_TRIGGER_BACKLIGHT) += - obj-$(CONFIG_LEDS_TRIGGER_GPIO) += ledtrig-gpio.o - obj-$(CONFIG_LEDS_TRIGGER_DEFAULT_ON) += ledtrig-default-on.o - obj-$(CONFIG_LEDS_TRIGGER_MORSE) += ledtrig-morse.o -+obj-$(CONFIG_LEDS_TRIGGER_NETDEV) += ledtrig-netdev.o ---- a/drivers/leds/ledtrig-netdev.c -+++ b/drivers/leds/ledtrig-netdev.c -@@ -307,8 +307,9 @@ done: - static void netdev_trig_timer(unsigned long arg) - { - struct led_netdev_data *trigger_data = (struct led_netdev_data *)arg; -- const struct net_device_stats *dev_stats; -+ struct rtnl_link_stats64 *dev_stats; - unsigned new_activity; -+ struct rtnl_link_stats64 temp; - - write_lock(&trigger_data->lock); - -@@ -318,7 +319,7 @@ static void netdev_trig_timer(unsigned l - goto no_restart; - } - -- dev_stats = dev_get_stats(trigger_data->net_dev); -+ dev_stats = dev_get_stats(trigger_data->net_dev, &temp); - new_activity = - ((trigger_data->mode & MODE_TX) ? dev_stats->tx_packets : 0) + - ((trigger_data->mode & MODE_RX) ? dev_stats->rx_packets : 0); diff --git a/target/linux/generic/patches-2.6.39/403-ledtrig-usbdev.patch b/target/linux/generic/patches-2.6.39/403-ledtrig-usbdev.patch deleted file mode 100644 index 54c94a6650c..00000000000 --- a/target/linux/generic/patches-2.6.39/403-ledtrig-usbdev.patch +++ /dev/null @@ -1,21 +0,0 @@ ---- a/drivers/leds/Kconfig -+++ b/drivers/leds/Kconfig -@@ -460,4 +460,11 @@ config LEDS_TRIGGER_NETDEV - This allows LEDs to be controlled by network device activity. - If unsure, say Y. - -+config LEDS_TRIGGER_USBDEV -+ tristate "LED USB device Trigger" -+ depends on USB && LEDS_TRIGGERS -+ help -+ This allows LEDs to be controlled by the presence/activity of -+ an USB device. If unsure, say N. -+ - endif # NEW_LEDS ---- a/drivers/leds/Makefile -+++ b/drivers/leds/Makefile -@@ -55,3 +55,4 @@ obj-$(CONFIG_LEDS_TRIGGER_GPIO) += ledt - obj-$(CONFIG_LEDS_TRIGGER_DEFAULT_ON) += ledtrig-default-on.o - obj-$(CONFIG_LEDS_TRIGGER_MORSE) += ledtrig-morse.o - obj-$(CONFIG_LEDS_TRIGGER_NETDEV) += ledtrig-netdev.o -+obj-$(CONFIG_LEDS_TRIGGER_USBDEV) += ledtrig-usbdev.o diff --git a/target/linux/generic/patches-2.6.39/410-gpio_buttons.patch b/target/linux/generic/patches-2.6.39/410-gpio_buttons.patch deleted file mode 100644 index cfe00286d95..00000000000 --- a/target/linux/generic/patches-2.6.39/410-gpio_buttons.patch +++ /dev/null @@ -1,31 +0,0 @@ ---- a/drivers/input/misc/Kconfig -+++ b/drivers/input/misc/Kconfig -@@ -467,4 +467,20 @@ config INPUT_XEN_KBDDEV_FRONTEND - To compile this driver as a module, choose M here: the - module will be called xen-kbdfront. - -+config INPUT_GPIO_BUTTONS -+ tristate "Polled GPIO buttons interface" -+ depends on GENERIC_GPIO -+ select INPUT_POLLDEV -+ help -+ This driver implements support for buttons connected -+ to GPIO pins of various CPUs (and some other chips). -+ -+ Say Y here if your device has buttons connected -+ directly to such GPIO pins. Your board-specific -+ setup logic must also provide a platform device, -+ with configuration data saying which GPIOs are used. -+ -+ To compile this driver as a module, choose M here: the -+ module will be called gpio-buttons. -+ - endif ---- a/drivers/input/misc/Makefile -+++ b/drivers/input/misc/Makefile -@@ -44,4 +44,5 @@ obj-$(CONFIG_INPUT_WISTRON_BTNS) += wist - obj-$(CONFIG_INPUT_WM831X_ON) += wm831x-on.o - obj-$(CONFIG_INPUT_XEN_KBDDEV_FRONTEND) += xen-kbdfront.o - obj-$(CONFIG_INPUT_YEALINK) += yealink.o -+obj-$(CONFIG_INPUT_GPIO_BUTTONS) += gpio_buttons.o - diff --git a/target/linux/generic/patches-2.6.39/410-mtd_info_move_forward_decl.patch b/target/linux/generic/patches-2.6.39/410-mtd_info_move_forward_decl.patch new file mode 100644 index 00000000000..13f0a217d47 --- /dev/null +++ b/target/linux/generic/patches-2.6.39/410-mtd_info_move_forward_decl.patch @@ -0,0 +1,18 @@ +--- a/include/linux/mtd/partitions.h ++++ b/include/linux/mtd/partitions.h +@@ -33,6 +33,7 @@ + * Note: writeable partitions require their size and offset be + * erasesize aligned (e.g. use MTDPART_OFS_NEXTBLK). + */ ++struct mtd_info; + + struct mtd_partition; + struct mtd_partition { +@@ -49,7 +50,6 @@ struct mtd_partition { + #define MTDPART_SIZ_FULL (0) + + +-struct mtd_info; + + int add_mtd_partitions(struct mtd_info *, const struct mtd_partition *, int); + int del_mtd_partitions(struct mtd_info *); diff --git a/target/linux/generic/patches-2.6.39/411-gpio_ioctl.patch b/target/linux/generic/patches-2.6.39/411-gpio_ioctl.patch deleted file mode 100644 index 6609a1670af..00000000000 --- a/target/linux/generic/patches-2.6.39/411-gpio_ioctl.patch +++ /dev/null @@ -1,11 +0,0 @@ ---- a/drivers/char/gpio_dev.c -+++ b/drivers/char/gpio_dev.c -@@ -114,7 +114,7 @@ gpio_close(struct inode * inode, struct - } - - struct file_operations gpio_fops = { -- ioctl: gpio_ioctl, -+ unlocked_ioctl: gpio_ioctl, - open: gpio_open, - release: gpio_close - }; diff --git a/target/linux/generic/patches-2.6.39/420-gpiodev.patch b/target/linux/generic/patches-2.6.39/420-gpiodev.patch deleted file mode 100644 index f41d5a68508..00000000000 --- a/target/linux/generic/patches-2.6.39/420-gpiodev.patch +++ /dev/null @@ -1,27 +0,0 @@ ---- a/drivers/char/Kconfig -+++ b/drivers/char/Kconfig -@@ -511,6 +511,14 @@ config NSC_GPIO - pc8736x_gpio drivers. If those drivers are built as - modules, this one will be too, named nsc_gpio - -+config GPIO_DEVICE -+ tristate "GPIO device support" -+ depends on GENERIC_GPIO -+ help -+ Say Y to enable Linux GPIO device support. This allows control of -+ GPIO pins using a character device -+ -+ - config RAW_DRIVER - tristate "RAW driver (/dev/raw/rawN)" - depends on BLOCK ---- a/drivers/char/Makefile -+++ b/drivers/char/Makefile -@@ -47,6 +47,7 @@ obj-$(CONFIG_NWFLASH) += nwflash.o - obj-$(CONFIG_SCx200_GPIO) += scx200_gpio.o - obj-$(CONFIG_PC8736x_GPIO) += pc8736x_gpio.o - obj-$(CONFIG_NSC_GPIO) += nsc_gpio.o -+obj-$(CONFIG_GPIO_DEVICE) += gpio_dev.o - obj-$(CONFIG_GPIO_TB0219) += tb0219.o - obj-$(CONFIG_TELCLOCK) += tlclk.o - diff --git a/target/linux/generic/patches-2.6.39/420-redboot_space.patch b/target/linux/generic/patches-2.6.39/420-redboot_space.patch new file mode 100644 index 00000000000..fb6700b07ef --- /dev/null +++ b/target/linux/generic/patches-2.6.39/420-redboot_space.patch @@ -0,0 +1,30 @@ +--- a/drivers/mtd/redboot.c ++++ b/drivers/mtd/redboot.c +@@ -267,14 +267,21 @@ static int parse_redboot_partitions(stru + #endif + names += strlen(names)+1; + +-#ifdef CONFIG_MTD_REDBOOT_PARTS_UNALLOCATED + if(fl->next && fl->img->flash_base + fl->img->size + master->erasesize <= fl->next->img->flash_base) { +- i++; +- parts[i].offset = parts[i-1].size + parts[i-1].offset; +- parts[i].size = fl->next->img->flash_base - parts[i].offset; +- parts[i].name = nullname; +- } ++ if (!strcmp(parts[i].name, "rootfs")) { ++ parts[i].size = fl->next->img->flash_base; ++ parts[i].size &= ~(master->erasesize - 1); ++ parts[i].size -= parts[i].offset; ++#ifdef CONFIG_MTD_REDBOOT_PARTS_UNALLOCATED ++ nrparts--; ++ } else { ++ i++; ++ parts[i].offset = parts[i-1].size + parts[i-1].offset; ++ parts[i].size = fl->next->img->flash_base - parts[i].offset; ++ parts[i].name = nullname; + #endif ++ } ++ } + tmp_fl = fl; + fl = fl->next; + kfree(tmp_fl); diff --git a/target/linux/generic/patches-2.6.39/421-redboot_boardconfig.patch b/target/linux/generic/patches-2.6.39/421-redboot_boardconfig.patch new file mode 100644 index 00000000000..9188cee29c9 --- /dev/null +++ b/target/linux/generic/patches-2.6.39/421-redboot_boardconfig.patch @@ -0,0 +1,60 @@ +--- a/drivers/mtd/redboot.c ++++ b/drivers/mtd/redboot.c +@@ -29,6 +29,8 @@ + #include + #include + ++#define BOARD_CONFIG_PART "boardconfig" ++ + struct fis_image_desc { + unsigned char name[16]; // Null terminated name + uint32_t flash_base; // Address within FLASH of image +@@ -59,6 +61,7 @@ static int parse_redboot_partitions(stru + struct mtd_partition **pparts, + unsigned long fis_origin) + { ++ unsigned long max_offset = 0; + int nrparts = 0; + struct fis_image_desc *buf; + struct mtd_partition *parts; +@@ -227,14 +230,14 @@ static int parse_redboot_partitions(stru + } + } + #endif +- parts = kzalloc(sizeof(*parts)*nrparts + nulllen + namelen, GFP_KERNEL); ++ parts = kzalloc(sizeof(*parts) * (nrparts + 1) + nulllen + namelen + sizeof(BOARD_CONFIG_PART), GFP_KERNEL); + + if (!parts) { + ret = -ENOMEM; + goto out; + } + +- nullname = (char *)&parts[nrparts]; ++ nullname = (char *)&parts[nrparts + 1]; + #ifdef CONFIG_MTD_REDBOOT_PARTS_UNALLOCATED + if (nulllen > 0) { + strcpy(nullname, nullstring); +@@ -253,6 +256,8 @@ static int parse_redboot_partitions(stru + } + #endif + for ( ; iimg->size; + parts[i].offset = fl->img->flash_base; + parts[i].name = names; +@@ -286,6 +291,14 @@ static int parse_redboot_partitions(stru + fl = fl->next; + kfree(tmp_fl); + } ++ if(master->size - max_offset >= master->erasesize) ++ { ++ parts[nrparts].size = master->size - max_offset; ++ parts[nrparts].offset = max_offset; ++ parts[nrparts].name = names; ++ strcpy(names, BOARD_CONFIG_PART); ++ nrparts++; ++ } + ret = nrparts; + *pparts = parts; + out: diff --git a/target/linux/generic/patches-2.6.39/430-mtd_myloader_partition_parser.patch b/target/linux/generic/patches-2.6.39/430-mtd_myloader_partition_parser.patch new file mode 100644 index 00000000000..07267eaa29e --- /dev/null +++ b/target/linux/generic/patches-2.6.39/430-mtd_myloader_partition_parser.patch @@ -0,0 +1,35 @@ +--- a/drivers/mtd/Kconfig ++++ b/drivers/mtd/Kconfig +@@ -176,6 +176,22 @@ config MTD_AR7_PARTS + + endif # MTD_PARTITIONS + ++config MTD_MYLOADER_PARTS ++ tristate "MyLoader partition parsing" ++ depends on MTD_PARTITIONS && (ADM5120 || ATHEROS_AR231X || ATHEROS_AR71XX) ++ ---help--- ++ MyLoader is a bootloader which allows the user to define partitions ++ in flash devices, by putting a table in the second erase block ++ on the device, similar to a partition table. This table gives the ++ offsets and lengths of the user defined partitions. ++ ++ If you need code which can detect and parse these tables, and ++ register MTD 'partitions' corresponding to each image detected, ++ enable this option. ++ ++ You will still need the parsing functions to be called by the driver ++ for your particular device. It won't happen automatically. ++ + comment "User Modules And Translation Layers" + + config MTD_CHAR +--- a/drivers/mtd/Makefile ++++ b/drivers/mtd/Makefile +@@ -12,6 +12,7 @@ obj-$(CONFIG_MTD_REDBOOT_PARTS) += redbo + obj-$(CONFIG_MTD_CMDLINE_PARTS) += cmdlinepart.o + obj-$(CONFIG_MTD_AFS_PARTS) += afs.o + obj-$(CONFIG_MTD_AR7_PARTS) += ar7part.o ++obj-$(CONFIG_MTD_MYLOADER_PARTS) += myloader.o + + # 'Users' - code which presents functionality to userspace. + obj-$(CONFIG_MTD_CHAR) += mtdchar.o diff --git a/target/linux/generic/patches-2.6.39/440-block2mtd_init.patch b/target/linux/generic/patches-2.6.39/440-block2mtd_init.patch new file mode 100644 index 00000000000..04dd40893d1 --- /dev/null +++ b/target/linux/generic/patches-2.6.39/440-block2mtd_init.patch @@ -0,0 +1,116 @@ +--- a/drivers/mtd/devices/block2mtd.c ++++ b/drivers/mtd/devices/block2mtd.c +@@ -14,6 +14,7 @@ + #include + #include + #include ++#include + #include + #include + #include +@@ -232,11 +233,12 @@ static void block2mtd_free_device(struct + + + /* FIXME: ensure that mtd->size % erase_size == 0 */ +-static struct block2mtd_dev *add_device(char *devname, int erase_size) ++static struct block2mtd_dev *add_device(char *devname, int erase_size, const char *mtdname) + { + const fmode_t mode = FMODE_READ | FMODE_WRITE | FMODE_EXCL; + struct block_device *bdev; + struct block2mtd_dev *dev; ++ struct mtd_partition *part; + char *name; + + if (!devname) +@@ -275,13 +277,16 @@ static struct block2mtd_dev *add_device( + + /* Setup the MTD structure */ + /* make the name contain the block device in */ +- name = kasprintf(GFP_KERNEL, "block2mtd: %s", devname); ++ if (!mtdname) ++ mtdname = devname; ++ name = kmalloc(strlen(mtdname) + 1, GFP_KERNEL); + if (!name) + goto devinit_err; + ++ strcpy(name, mtdname); + dev->mtd.name = name; + +- dev->mtd.size = dev->blkdev->bd_inode->i_size & PAGE_MASK; ++ dev->mtd.size = dev->blkdev->bd_inode->i_size & PAGE_MASK & ~(erase_size - 1); + dev->mtd.erasesize = erase_size; + dev->mtd.writesize = 1; + dev->mtd.type = MTD_RAM; +@@ -294,14 +299,17 @@ static struct block2mtd_dev *add_device( + dev->mtd.priv = dev; + dev->mtd.owner = THIS_MODULE; + +- if (add_mtd_device(&dev->mtd)) { ++ part = kzalloc(sizeof(struct mtd_partition), GFP_KERNEL); ++ part->name = name; ++ part->offset = 0; ++ part->size = dev->mtd.size; ++ if (add_mtd_partitions(&dev->mtd, part, 1)) { + /* Device didn't get added, so free the entry */ + goto devinit_err; + } + list_add(&dev->list, &blkmtd_device_list); + INFO("mtd%d: [%s] erase_size = %dKiB [%d]", dev->mtd.index, +- dev->mtd.name + strlen("block2mtd: "), +- dev->mtd.erasesize >> 10, dev->mtd.erasesize); ++ mtdname, dev->mtd.erasesize >> 10, dev->mtd.erasesize); + return dev; + + devinit_err: +@@ -374,9 +382,9 @@ static char block2mtd_paramline[80 + 12] + + static int block2mtd_setup2(const char *val) + { +- char buf[80 + 12]; /* 80 for device, 12 for erase size */ ++ char buf[80 + 12 + 80]; /* 80 for device, 12 for erase size, 80 for name */ + char *str = buf; +- char *token[2]; ++ char *token[3]; + char *name; + size_t erase_size = PAGE_SIZE; + int i, ret; +@@ -387,7 +395,7 @@ static int block2mtd_setup2(const char * + strcpy(str, val); + kill_final_newline(str); + +- for (i = 0; i < 2; i++) ++ for (i = 0; i < 3; i++) + token[i] = strsep(&str, ","); + + if (str) +@@ -406,8 +414,10 @@ static int block2mtd_setup2(const char * + parse_err("illegal erase size"); + } + } ++ if (token[2] && (strlen(token[2]) + 1 > 80)) ++ parse_err("mtd device name too long"); + +- add_device(name, erase_size); ++ add_device(name, erase_size, token[2]); + + return 0; + } +@@ -441,7 +451,7 @@ static int block2mtd_setup(const char *v + + + module_param_call(block2mtd, block2mtd_setup, NULL, NULL, 0200); +-MODULE_PARM_DESC(block2mtd, "Device to use. \"block2mtd=[,]\""); ++MODULE_PARM_DESC(block2mtd, "Device to use. \"block2mtd=[,[,]]\""); + + static int __init block2mtd_init(void) + { +--- a/fs/partitions/check.c ++++ b/fs/partitions/check.c +@@ -664,6 +664,7 @@ rescan: + kfree(state); + return 0; + } ++EXPORT_SYMBOL(rescan_partitions); + + unsigned char *read_dev_sector(struct block_device *bdev, sector_t n, Sector *p) + { diff --git a/target/linux/generic/patches-2.6.39/441-block2mtd_refresh.patch b/target/linux/generic/patches-2.6.39/441-block2mtd_refresh.patch new file mode 100644 index 00000000000..24ee22f5f60 --- /dev/null +++ b/target/linux/generic/patches-2.6.39/441-block2mtd_refresh.patch @@ -0,0 +1,291 @@ +--- a/drivers/mtd/devices/block2mtd.c ++++ b/drivers/mtd/devices/block2mtd.c +@@ -30,6 +30,8 @@ struct block2mtd_dev { + struct block_device *blkdev; + struct mtd_info mtd; + struct mutex write_mutex; ++ rwlock_t bdev_mutex; ++ char devname[0]; + }; + + +@@ -82,6 +84,12 @@ static int block2mtd_erase(struct mtd_in + size_t len = instr->len; + int err; + ++ read_lock(&dev->bdev_mutex); ++ if (!dev->blkdev) { ++ err = -EINVAL; ++ goto done; ++ } ++ + instr->state = MTD_ERASING; + mutex_lock(&dev->write_mutex); + err = _block2mtd_erase(dev, from, len); +@@ -93,6 +101,10 @@ static int block2mtd_erase(struct mtd_in + instr->state = MTD_ERASE_DONE; + + mtd_erase_callback(instr); ++ ++done: ++ read_unlock(&dev->bdev_mutex); ++ + return err; + } + +@@ -104,10 +116,14 @@ static int block2mtd_read(struct mtd_inf + struct page *page; + int index = from >> PAGE_SHIFT; + int offset = from & (PAGE_SIZE-1); +- int cpylen; ++ int cpylen, err = 0; ++ ++ read_lock(&dev->bdev_mutex); ++ if (!dev->blkdev || (from > mtd->size)) { ++ err = -EINVAL; ++ goto done; ++ } + +- if (from > mtd->size) +- return -EINVAL; + if (from + len > mtd->size) + len = mtd->size - from; + +@@ -122,10 +138,14 @@ static int block2mtd_read(struct mtd_inf + len = len - cpylen; + + page = page_read(dev->blkdev->bd_inode->i_mapping, index); +- if (!page) +- return -ENOMEM; +- if (IS_ERR(page)) +- return PTR_ERR(page); ++ if (!page) { ++ err = -ENOMEM; ++ goto done; ++ } ++ if (IS_ERR(page)) { ++ err = PTR_ERR(page); ++ goto done; ++ } + + memcpy(buf, page_address(page) + offset, cpylen); + page_cache_release(page); +@@ -136,7 +156,10 @@ static int block2mtd_read(struct mtd_inf + offset = 0; + index++; + } +- return 0; ++ ++done: ++ read_unlock(&dev->bdev_mutex); ++ return err; + } + + +@@ -188,12 +211,22 @@ static int block2mtd_write(struct mtd_in + size_t *retlen, const u_char *buf) + { + struct block2mtd_dev *dev = mtd->priv; +- int err; ++ int err = 0; ++ ++ read_lock(&dev->bdev_mutex); ++ if (!dev->blkdev) { ++ err = -EINVAL; ++ goto done; ++ } + + if (!len) +- return 0; +- if (to >= mtd->size) +- return -ENOSPC; ++ goto done; ++ ++ if (to >= mtd->size) { ++ err = -ENOSPC; ++ goto done; ++ } ++ + if (to + len > mtd->size) + len = mtd->size - to; + +@@ -202,6 +235,9 @@ static int block2mtd_write(struct mtd_in + mutex_unlock(&dev->write_mutex); + if (err > 0) + err = 0; ++ ++done: ++ read_unlock(&dev->bdev_mutex); + return err; + } + +@@ -210,33 +246,110 @@ static int block2mtd_write(struct mtd_in + static void block2mtd_sync(struct mtd_info *mtd) + { + struct block2mtd_dev *dev = mtd->priv; ++ read_lock(&dev->bdev_mutex); ++ if (dev->blkdev) + sync_blockdev(dev->blkdev); ++ read_unlock(&dev->bdev_mutex); ++ + return; + } + + ++static int _open_bdev(struct block2mtd_dev *dev) ++{ ++ const fmode_t mode = FMODE_READ | FMODE_WRITE | FMODE_EXCL; ++ struct block_device *bdev; ++ ++ /* Get a handle on the device */ ++ bdev = blkdev_get_by_path(dev->devname, mode, dev); ++#ifndef MODULE ++ if (IS_ERR(bdev)) { ++ dev_t devt; ++ ++ /* We might not have rootfs mounted at this point. Try ++ to resolve the device name by other means. */ ++ ++ devt = name_to_dev_t(dev->devname); ++ if (devt) ++ bdev = blkdev_get_by_dev(devt, mode, dev); ++ } ++#endif ++ ++ if (IS_ERR(bdev)) { ++ ERROR("error: cannot open device %s", dev->devname); ++ return 1; ++ } ++ dev->blkdev = bdev; ++ ++ if (MAJOR(bdev->bd_dev) == MTD_BLOCK_MAJOR) { ++ ERROR("attempting to use an MTD device as a block device"); ++ return 1; ++ } ++ ++ return 0; ++} ++ ++static void _close_bdev(struct block2mtd_dev *dev) ++{ ++ struct block_device *bdev; ++ ++ if (!dev->blkdev) ++ return; ++ ++ bdev = dev->blkdev; ++ invalidate_mapping_pages(dev->blkdev->bd_inode->i_mapping, 0, -1); ++ blkdev_put(dev->blkdev, FMODE_READ|FMODE_WRITE|FMODE_EXCL); ++ dev->blkdev = NULL; ++} ++ + static void block2mtd_free_device(struct block2mtd_dev *dev) + { + if (!dev) + return; + + kfree(dev->mtd.name); +- +- if (dev->blkdev) { +- invalidate_mapping_pages(dev->blkdev->bd_inode->i_mapping, +- 0, -1); +- blkdev_put(dev->blkdev, FMODE_READ|FMODE_WRITE|FMODE_EXCL); +- } +- ++ _close_bdev(dev); + kfree(dev); + } + + +-/* FIXME: ensure that mtd->size % erase_size == 0 */ +-static struct block2mtd_dev *add_device(char *devname, int erase_size, const char *mtdname) ++static int block2mtd_refresh(struct mtd_info *mtd) + { +- const fmode_t mode = FMODE_READ | FMODE_WRITE | FMODE_EXCL; ++ struct block2mtd_dev *dev = mtd->priv; + struct block_device *bdev; ++ dev_t devt; ++ int err = 0; ++ ++ /* no other mtd function can run at this point */ ++ write_lock(&dev->bdev_mutex); ++ ++ /* get the device number for the whole disk */ ++ devt = MKDEV(MAJOR(dev->blkdev->bd_dev), 0); ++ ++ /* close the old block device */ ++ _close_bdev(dev); ++ ++ /* open the whole disk, issue a partition rescan, then */ ++ bdev = blkdev_get_by_dev(devt, FMODE_WRITE | FMODE_READ, mtd); ++ if (!bdev || !bdev->bd_disk) ++ err = -EINVAL; ++#ifndef CONFIG_MTD_BLOCK2MTD_MODULE ++ else ++ err = rescan_partitions(bdev->bd_disk, bdev); ++#endif ++ if (bdev) ++ blkdev_put(bdev, FMODE_READ|FMODE_WRITE|FMODE_EXCL); ++ ++ /* try to open the partition block device again */ ++ _open_bdev(dev); ++ write_unlock(&dev->bdev_mutex); ++ ++ return err; ++} ++ ++/* FIXME: ensure that mtd->size % erase_size == 0 */ ++static struct block2mtd_dev *add_device(char *devname, int erase_size, char *mtdname) ++{ + struct block2mtd_dev *dev; + struct mtd_partition *part; + char *name; +@@ -244,36 +357,17 @@ static struct block2mtd_dev *add_device( + if (!devname) + return NULL; + +- dev = kzalloc(sizeof(struct block2mtd_dev), GFP_KERNEL); ++ dev = kzalloc(sizeof(struct block2mtd_dev) + strlen(devname) + 1, GFP_KERNEL); + if (!dev) + return NULL; + +- /* Get a handle on the device */ +- bdev = blkdev_get_by_path(devname, mode, dev); +-#ifndef MODULE +- if (IS_ERR(bdev)) { +- +- /* We might not have rootfs mounted at this point. Try +- to resolve the device name by other means. */ ++ strcpy(dev->devname, devname); + +- dev_t devt = name_to_dev_t(devname); +- if (devt) +- bdev = blkdev_get_by_dev(devt, mode, dev); +- } +-#endif +- +- if (IS_ERR(bdev)) { +- ERROR("error: cannot open device %s", devname); ++ if (_open_bdev(dev)) + goto devinit_err; +- } +- dev->blkdev = bdev; +- +- if (MAJOR(bdev->bd_dev) == MTD_BLOCK_MAJOR) { +- ERROR("attempting to use an MTD device as a block device"); +- goto devinit_err; +- } + + mutex_init(&dev->write_mutex); ++ rwlock_init(&dev->bdev_mutex); + + /* Setup the MTD structure */ + /* make the name contain the block device in */ +@@ -298,6 +392,7 @@ static struct block2mtd_dev *add_device( + dev->mtd.read = block2mtd_read; + dev->mtd.priv = dev; + dev->mtd.owner = THIS_MODULE; ++ dev->mtd.refresh_device = block2mtd_refresh; + + part = kzalloc(sizeof(struct mtd_partition), GFP_KERNEL); + part->name = name; diff --git a/target/linux/generic/patches-2.6.39/442-block2mtd_probe.patch b/target/linux/generic/patches-2.6.39/442-block2mtd_probe.patch new file mode 100644 index 00000000000..780dd28fd24 --- /dev/null +++ b/target/linux/generic/patches-2.6.39/442-block2mtd_probe.patch @@ -0,0 +1,10 @@ +--- a/drivers/mtd/devices/block2mtd.c ++++ b/drivers/mtd/devices/block2mtd.c +@@ -269,6 +269,7 @@ static int _open_bdev(struct block2mtd_d + /* We might not have rootfs mounted at this point. Try + to resolve the device name by other means. */ + ++ wait_for_device_probe(); + devt = name_to_dev_t(dev->devname); + if (devt) + bdev = blkdev_get_by_dev(devt, mode, dev); diff --git a/target/linux/generic/patches-2.6.39/450-mtd_plat_nand_chip_fixup.patch b/target/linux/generic/patches-2.6.39/450-mtd_plat_nand_chip_fixup.patch new file mode 100644 index 00000000000..0774e8389f5 --- /dev/null +++ b/target/linux/generic/patches-2.6.39/450-mtd_plat_nand_chip_fixup.patch @@ -0,0 +1,37 @@ +--- + drivers/mtd/nand/plat_nand.c | 13 ++++++++++++- + include/linux/mtd/nand.h | 1 + + 2 files changed, 13 insertions(+), 1 deletion(-) + +--- a/include/linux/mtd/nand.h ++++ b/include/linux/mtd/nand.h +@@ -625,6 +625,7 @@ struct platform_nand_chip { + int chip_delay; + unsigned int options; + const char **part_probe_types; ++ int (*chip_fixup)(struct mtd_info *mtd); + void (*set_parts)(uint64_t size, struct platform_nand_chip *chip); + void *priv; + }; +--- a/drivers/mtd/nand/plat_nand.c ++++ b/drivers/mtd/nand/plat_nand.c +@@ -96,7 +96,18 @@ static int __devinit plat_nand_probe(str + } + + /* Scan to find existence of the device */ +- if (nand_scan(&data->mtd, pdata->chip.nr_chips)) { ++ if (nand_scan_ident(&data->mtd, pdata->chip.nr_chips, NULL)) { ++ res = -ENXIO; ++ goto out; ++ } ++ ++ if (pdata->chip.chip_fixup) { ++ res = pdata->chip.chip_fixup(&data->mtd); ++ if (res) ++ goto out; ++ } ++ ++ if (nand_scan_tail(&data->mtd)) { + err = -ENXIO; + goto out; + } diff --git a/target/linux/generic/patches-2.6.39/451-mtd_fix_nand_correct_data_return_code.patch b/target/linux/generic/patches-2.6.39/451-mtd_fix_nand_correct_data_return_code.patch new file mode 100644 index 00000000000..f630059e876 --- /dev/null +++ b/target/linux/generic/patches-2.6.39/451-mtd_fix_nand_correct_data_return_code.patch @@ -0,0 +1,12 @@ +--- a/drivers/mtd/nand/nand_ecc.c ++++ b/drivers/mtd/nand/nand_ecc.c +@@ -507,8 +507,7 @@ int __nand_correct_data(unsigned char *b + if ((bitsperbyte[b0] + bitsperbyte[b1] + bitsperbyte[b2]) == 1) + return 1; /* error in ecc data; no action needed */ + +- printk(KERN_ERR "uncorrectable error : "); +- return -1; ++ return -EBADMSG; + } + EXPORT_SYMBOL(__nand_correct_data); + diff --git a/target/linux/generic/patches-2.6.39/460-cfi_show_amd_extended_table_version.patch b/target/linux/generic/patches-2.6.39/460-cfi_show_amd_extended_table_version.patch new file mode 100644 index 00000000000..ecd5c94c906 --- /dev/null +++ b/target/linux/generic/patches-2.6.39/460-cfi_show_amd_extended_table_version.patch @@ -0,0 +1,15 @@ +--- a/drivers/mtd/chips/cfi_cmdset_0002.c ++++ b/drivers/mtd/chips/cfi_cmdset_0002.c +@@ -463,9 +463,9 @@ struct mtd_info *cfi_cmdset_0002(struct + + /* + * Valid primary extension versions are: 1.0, 1.1, 1.2, 1.3, 1.4 +- * see: http://cs.ozerki.net/zap/pub/axim-x5/docs/cfi_r20.pdf, page 19 +- * http://www.spansion.com/Support/AppNotes/cfi_100_20011201.pdf +- * http://www.spansion.com/Support/Datasheets/s29ws-p_00_a12_e.pdf ++ * see: Spec 1.3 http://cs.ozerki.net/zap/pub/axim-x5/docs/cfi_r20.pdf, page 19 ++ * http://www.spansion.com/Support/AppNotes/cfi_100_20011201.pdf ++ * Spec 1.4 http://www.spansion.com/Support/AppNotes/CFI_Spec_AN_03.pdf, page 9 + */ + if (extp->MajorVersion != '1' || + (extp->MajorVersion == '1' && (extp->MinorVersion < '0' || extp->MinorVersion > '4'))) { diff --git a/target/linux/generic/patches-2.6.39/470-mtd_m25p80_add_pm25lv_flash_support.patch b/target/linux/generic/patches-2.6.39/470-mtd_m25p80_add_pm25lv_flash_support.patch new file mode 100644 index 00000000000..ae4f922190c --- /dev/null +++ b/target/linux/generic/patches-2.6.39/470-mtd_m25p80_add_pm25lv_flash_support.patch @@ -0,0 +1,39 @@ +--- a/drivers/mtd/devices/m25p80.c ++++ b/drivers/mtd/devices/m25p80.c +@@ -43,6 +43,7 @@ + #define OPCODE_BE_4K 0x20 /* Erase 4KiB block */ + #define OPCODE_BE_32K 0x52 /* Erase 32KiB block */ + #define OPCODE_CHIP_ERASE 0xc7 /* Erase whole flash chip */ ++#define OPCODE_BE_4K_PMC 0xd7 /* Erase 4KiB block on PMC chips*/ + #define OPCODE_SE 0xd8 /* Sector erase (usually 64KiB) */ + #define OPCODE_RDID 0x9f /* Read JEDEC ID */ + +@@ -617,6 +618,7 @@ struct flash_info { + u16 flags; + #define SECT_4K 0x01 /* OPCODE_BE_4K works uniformly */ + #define M25P_NO_ERASE 0x02 /* No erase command needed */ ++#define SECT_4K_PMC 0x04 /* OPCODE_BE_4K_PMC works uniformly */ + }; + + #define INFO(_jedec_id, _ext_id, _sector_size, _n_sectors, _flags) \ +@@ -675,6 +677,10 @@ static const struct spi_device_id m25p_i + { "mx25l25635e", INFO(0xc22019, 0, 64 * 1024, 512, 0) }, + { "mx25l25655e", INFO(0xc22619, 0, 64 * 1024, 512, 0) }, + ++ /* PMC -- pm25x "blocks" are 32K, sectors are 4K */ ++ { "pm25lv512", INFO(0, 0, 32 * 1024, 2, SECT_4K_PMC) }, ++ { "pm25lv010", INFO(0, 0, 32 * 1024, 4, SECT_4K_PMC) }, ++ + /* Spansion -- single (large) sector size only, at least + * for the chips listed here (without boot sectors). + */ +@@ -897,6 +903,9 @@ static int __devinit m25p_probe(struct s + if (info->flags & SECT_4K) { + flash->erase_opcode = OPCODE_BE_4K; + flash->mtd.erasesize = 4096; ++ } else if (info->flags & SECT_4K_PMC) { ++ flash->erase_opcode = OPCODE_BE_4K_PMC; ++ flash->mtd.erasesize = 4096; + } else { + flash->erase_opcode = OPCODE_SE; + flash->mtd.erasesize = info->sector_size; diff --git a/target/linux/generic/patches-2.6.39/472-mtd_m25p80_add_MX25L1606E_support.patch b/target/linux/generic/patches-2.6.39/472-mtd_m25p80_add_MX25L1606E_support.patch new file mode 100644 index 00000000000..b5937a35571 --- /dev/null +++ b/target/linux/generic/patches-2.6.39/472-mtd_m25p80_add_MX25L1606E_support.patch @@ -0,0 +1,20 @@ +From da9c4c174ad5086e5ccff23a5ffd1f9750b77c85 Mon Sep 17 00:00:00 2001 +From: Gabor Juhos +Date: Thu, 24 Mar 2011 21:43:48 +0100 +Subject: [PATCH] mtd: m25p80: add support for the MX25L1606E chip + +Signed-off-by: Gabor Juhos +--- + drivers/mtd/devices/m25p80.c | 1 + + 1 files changed, 1 insertions(+), 0 deletions(-) + +--- a/drivers/mtd/devices/m25p80.c ++++ b/drivers/mtd/devices/m25p80.c +@@ -670,6 +670,7 @@ static const struct spi_device_id m25p_i + /* Macronix */ + { "mx25l4005a", INFO(0xc22013, 0, 64 * 1024, 8, SECT_4K) }, + { "mx25l8005", INFO(0xc22014, 0, 64 * 1024, 16, 0) }, ++ { "mx25l1606e", INFO(0xc22015, 0, 64 * 1024, 32, SECT_4K) }, + { "mx25l3205d", INFO(0xc22016, 0, 64 * 1024, 64, 0) }, + { "mx25l6405d", INFO(0xc22017, 0, 64 * 1024, 128, 0) }, + { "mx25l12805d", INFO(0xc22018, 0, 64 * 1024, 256, 0) }, diff --git a/target/linux/generic/patches-2.6.39/500-yaffs_support.patch b/target/linux/generic/patches-2.6.39/500-yaffs_support.patch new file mode 100644 index 00000000000..51ef4fcd3cc --- /dev/null +++ b/target/linux/generic/patches-2.6.39/500-yaffs_support.patch @@ -0,0 +1,18 @@ +--- a/fs/Kconfig ++++ b/fs/Kconfig +@@ -35,6 +35,7 @@ source "fs/gfs2/Kconfig" + source "fs/ocfs2/Kconfig" + source "fs/btrfs/Kconfig" + source "fs/nilfs2/Kconfig" ++source "fs/yaffs2/Kconfig" + + endif # BLOCK + +--- a/fs/Makefile ++++ b/fs/Makefile +@@ -125,3 +125,5 @@ obj-$(CONFIG_GFS2_FS) += gfs2/ + obj-$(CONFIG_EXOFS_FS) += exofs/ + obj-$(CONFIG_CEPH_FS) += ceph/ + obj-$(CONFIG_PSTORE) += pstore/ ++obj-$(CONFIG_YAFFS_FS) += yaffs2/ ++ diff --git a/target/linux/generic/patches-2.6.39/501-yaffs_cvs_2009_04_24.patch b/target/linux/generic/patches-2.6.39/501-yaffs_cvs_2009_04_24.patch new file mode 100644 index 00000000000..5c70e79a058 --- /dev/null +++ b/target/linux/generic/patches-2.6.39/501-yaffs_cvs_2009_04_24.patch @@ -0,0 +1,12344 @@ +--- a/fs/yaffs2/devextras.h ++++ b/fs/yaffs2/devextras.h +@@ -14,194 +14,135 @@ + */ + + /* +- * This file is just holds extra declarations used during development. +- * Most of these are from kernel includes placed here so we can use them in +- * applications. ++ * This file is just holds extra declarations of macros that would normally ++ * be providesd in the Linux kernel. These macros have been written from ++ * scratch but are functionally equivalent to the Linux ones. + * + */ + + #ifndef __EXTRAS_H__ + #define __EXTRAS_H__ + +-#if defined WIN32 +-#define __inline__ __inline +-#define new newHack +-#endif +- +-#if !(defined __KERNEL__) || (defined WIN32) + +-/* User space defines */ ++#if !(defined __KERNEL__) + ++/* Definition of types */ + typedef unsigned char __u8; + typedef unsigned short __u16; + typedef unsigned __u32; + ++#endif ++ + /* +- * Simple doubly linked list implementation. +- * +- * Some of the internal functions ("__xxx") are useful when +- * manipulating whole lists rather than single entries, as +- * sometimes we already know the next/prev entries and we can +- * generate better code by using them directly rather than +- * using the generic single-entry routines. ++ * This is a simple doubly linked list implementation that matches the ++ * way the Linux kernel doubly linked list implementation works. + */ + +-#define prefetch(x) 1 +- +-struct list_head { +- struct list_head *next, *prev; ++struct ylist_head { ++ struct ylist_head *next; /* next in chain */ ++ struct ylist_head *prev; /* previous in chain */ + }; + +-#define LIST_HEAD_INIT(name) { &(name), &(name) } + +-#define LIST_HEAD(name) \ +- struct list_head name = LIST_HEAD_INIT(name) ++/* Initialise a static list */ ++#define YLIST_HEAD(name) \ ++struct ylist_head name = { &(name), &(name)} ++ + +-#define INIT_LIST_HEAD(ptr) do { \ +- (ptr)->next = (ptr); (ptr)->prev = (ptr); \ ++ ++/* Initialise a list head to an empty list */ ++#define YINIT_LIST_HEAD(p) \ ++do { \ ++ (p)->next = (p);\ ++ (p)->prev = (p); \ + } while (0) + +-/* +- * Insert a new entry between two known consecutive entries. +- * +- * This is only for internal list manipulation where we know +- * the prev/next entries already! +- */ +-static __inline__ void __list_add(struct list_head *new, +- struct list_head *prev, +- struct list_head *next) +-{ +- next->prev = new; +- new->next = next; +- new->prev = prev; +- prev->next = new; +-} + +-/** +- * list_add - add a new entry +- * @new: new entry to be added +- * @head: list head to add it after +- * +- * Insert a new entry after the specified head. +- * This is good for implementing stacks. +- */ +-static __inline__ void list_add(struct list_head *new, struct list_head *head) ++/* Add an element to a list */ ++static __inline__ void ylist_add(struct ylist_head *newEntry, ++ struct ylist_head *list) + { +- __list_add(new, head, head->next); +-} ++ struct ylist_head *listNext = list->next; ++ ++ list->next = newEntry; ++ newEntry->prev = list; ++ newEntry->next = listNext; ++ listNext->prev = newEntry; + +-/** +- * list_add_tail - add a new entry +- * @new: new entry to be added +- * @head: list head to add it before +- * +- * Insert a new entry before the specified head. +- * This is useful for implementing queues. +- */ +-static __inline__ void list_add_tail(struct list_head *new, +- struct list_head *head) +-{ +- __list_add(new, head->prev, head); + } + +-/* +- * Delete a list entry by making the prev/next entries +- * point to each other. +- * +- * This is only for internal list manipulation where we know +- * the prev/next entries already! +- */ +-static __inline__ void __list_del(struct list_head *prev, +- struct list_head *next) ++static __inline__ void ylist_add_tail(struct ylist_head *newEntry, ++ struct ylist_head *list) + { +- next->prev = prev; +- prev->next = next; ++ struct ylist_head *listPrev = list->prev; ++ ++ list->prev = newEntry; ++ newEntry->next = list; ++ newEntry->prev = listPrev; ++ listPrev->next = newEntry; ++ + } + +-/** +- * list_del - deletes entry from list. +- * @entry: the element to delete from the list. +- * Note: list_empty on entry does not return true after this, the entry is +- * in an undefined state. +- */ +-static __inline__ void list_del(struct list_head *entry) ++ ++/* Take an element out of its current list, with or without ++ * reinitialising the links.of the entry*/ ++static __inline__ void ylist_del(struct ylist_head *entry) + { +- __list_del(entry->prev, entry->next); ++ struct ylist_head *listNext = entry->next; ++ struct ylist_head *listPrev = entry->prev; ++ ++ listNext->prev = listPrev; ++ listPrev->next = listNext; ++ + } + +-/** +- * list_del_init - deletes entry from list and reinitialize it. +- * @entry: the element to delete from the list. +- */ +-static __inline__ void list_del_init(struct list_head *entry) ++static __inline__ void ylist_del_init(struct ylist_head *entry) + { +- __list_del(entry->prev, entry->next); +- INIT_LIST_HEAD(entry); ++ ylist_del(entry); ++ entry->next = entry->prev = entry; + } + +-/** +- * list_empty - tests whether a list is empty +- * @head: the list to test. +- */ +-static __inline__ int list_empty(struct list_head *head) ++ ++/* Test if the list is empty */ ++static __inline__ int ylist_empty(struct ylist_head *entry) + { +- return head->next == head; ++ return (entry->next == entry); + } + +-/** +- * list_splice - join two lists +- * @list: the new list to add. +- * @head: the place to add it in the first list. ++ ++/* ylist_entry takes a pointer to a list entry and offsets it to that ++ * we can find a pointer to the object it is embedded in. + */ +-static __inline__ void list_splice(struct list_head *list, +- struct list_head *head) +-{ +- struct list_head *first = list->next; + +- if (first != list) { +- struct list_head *last = list->prev; +- struct list_head *at = head->next; +- +- first->prev = head; +- head->next = first; +- +- last->next = at; +- at->prev = last; +- } +-} + +-/** +- * list_entry - get the struct for this entry +- * @ptr: the &struct list_head pointer. +- * @type: the type of the struct this is embedded in. +- * @member: the name of the list_struct within the struct. +- */ +-#define list_entry(ptr, type, member) \ +- ((type *)((char *)(ptr)-(unsigned long)(&((type *)0)->member))) +- +-/** +- * list_for_each - iterate over a list +- * @pos: the &struct list_head to use as a loop counter. +- * @head: the head for your list. +- */ +-#define list_for_each(pos, head) \ +- for (pos = (head)->next, prefetch(pos->next); pos != (head); \ +- pos = pos->next, prefetch(pos->next)) +- +-/** +- * list_for_each_safe - iterate over a list safe against removal +- * of list entry +- * @pos: the &struct list_head to use as a loop counter. +- * @n: another &struct list_head to use as temporary storage +- * @head: the head for your list. +- */ +-#define list_for_each_safe(pos, n, head) \ +- for (pos = (head)->next, n = pos->next; pos != (head); \ +- pos = n, n = pos->next) ++#define ylist_entry(entry, type, member) \ ++ ((type *)((char *)(entry)-(unsigned long)(&((type *)NULL)->member))) + +-/* +- * File types ++ ++/* ylist_for_each and list_for_each_safe iterate over lists. ++ * ylist_for_each_safe uses temporary storage to make the list delete safe + */ ++ ++#define ylist_for_each(itervar, list) \ ++ for (itervar = (list)->next; itervar != (list); itervar = itervar->next) ++ ++#define ylist_for_each_safe(itervar, saveVar, list) \ ++ for (itervar = (list)->next, saveVar = (list)->next->next; \ ++ itervar != (list); itervar = saveVar, saveVar = saveVar->next) ++ ++ ++#if !(defined __KERNEL__) ++ ++ ++#ifndef WIN32 ++#include ++#endif ++ ++ ++#ifdef CONFIG_YAFFS_PROVIDE_DEFS ++/* File types */ ++ ++ + #define DT_UNKNOWN 0 + #define DT_FIFO 1 + #define DT_CHR 2 +@@ -212,6 +153,7 @@ static __inline__ void list_splice(struc + #define DT_SOCK 12 + #define DT_WHT 14 + ++ + #ifndef WIN32 + #include + #endif +@@ -227,10 +169,6 @@ static __inline__ void list_splice(struc + #define ATTR_ATIME 16 + #define ATTR_MTIME 32 + #define ATTR_CTIME 64 +-#define ATTR_ATIME_SET 128 +-#define ATTR_MTIME_SET 256 +-#define ATTR_FORCE 512 /* Not a change, but a change it */ +-#define ATTR_ATTR_FLAG 1024 + + struct iattr { + unsigned int ia_valid; +@@ -244,21 +182,15 @@ struct iattr { + unsigned int ia_attr_flags; + }; + +-#define KERN_DEBUG ++#endif + + #else + +-#ifndef WIN32 + #include +-#include + #include + #include +-#endif + + #endif + +-#if defined WIN32 +-#undef new +-#endif + + #endif +--- a/fs/yaffs2/Kconfig ++++ b/fs/yaffs2/Kconfig +@@ -5,7 +5,7 @@ + config YAFFS_FS + tristate "YAFFS2 file system support" + default n +- depends on MTD ++ depends on MTD_BLOCK + select YAFFS_YAFFS1 + select YAFFS_YAFFS2 + help +@@ -43,7 +43,8 @@ config YAFFS_9BYTE_TAGS + format that you need to continue to support. New data written + also uses the older-style format. Note: Use of this option + generally requires that MTD's oob layout be adjusted to use the +- older-style format. See notes on tags formats and MTD versions. ++ older-style format. See notes on tags formats and MTD versions ++ in yaffs_mtdif1.c. + + If unsure, say N. + +@@ -109,26 +110,6 @@ config YAFFS_DISABLE_LAZY_LOAD + + If unsure, say N. + +-config YAFFS_CHECKPOINT_RESERVED_BLOCKS +- int "Reserved blocks for checkpointing" +- depends on YAFFS_YAFFS2 +- default 10 +- help +- Give the number of Blocks to reserve for checkpointing. +- Checkpointing saves the state at unmount so that mounting is +- much faster as a scan of all the flash to regenerate this state +- is not needed. These Blocks are reserved per partition, so if +- you have very small partitions the default (10) may be a mess +- for you. You can set this value to 0, but that does not mean +- checkpointing is disabled at all. There only won't be any +- specially reserved blocks for checkpointing, so if there is +- enough free space on the filesystem, it will be used for +- checkpointing. +- +- If unsure, leave at default (10), but don't wonder if there are +- always 2MB used on your large page device partition (10 x 2k +- pagesize). When using small partitions or when being very small +- on space, you probably want to set this to zero. + + config YAFFS_DISABLE_WIDE_TNODES + bool "Turn off wide tnodes" +--- a/fs/yaffs2/Makefile ++++ b/fs/yaffs2/Makefile +@@ -5,7 +5,6 @@ + obj-$(CONFIG_YAFFS_FS) += yaffs.o + + yaffs-y := yaffs_ecc.o yaffs_fs.o yaffs_guts.o yaffs_checkptrw.o +-yaffs-y += yaffs_packedtags2.o yaffs_nand.o yaffs_qsort.o ++yaffs-y += yaffs_packedtags1.o yaffs_packedtags2.o yaffs_nand.o yaffs_qsort.o + yaffs-y += yaffs_tagscompat.o yaffs_tagsvalidity.o +-yaffs-y += yaffs_mtdif1.o yaffs_packedtags1.o +-yaffs-y += yaffs_mtdif.o yaffs_mtdif2.o ++yaffs-y += yaffs_mtdif.o yaffs_mtdif1.o yaffs_mtdif2.o +--- a/fs/yaffs2/moduleconfig.h ++++ b/fs/yaffs2/moduleconfig.h +@@ -27,12 +27,12 @@ + + /* Default: Not selected */ + /* Meaning: Yaffs does its own ECC, rather than using MTD ECC */ +-//#define CONFIG_YAFFS_DOES_ECC ++/* #define CONFIG_YAFFS_DOES_ECC */ + + /* Default: Not selected */ + /* Meaning: ECC byte order is 'wrong'. Only meaningful if */ + /* CONFIG_YAFFS_DOES_ECC is set */ +-//#define CONFIG_YAFFS_ECC_WRONG_ORDER ++/* #define CONFIG_YAFFS_ECC_WRONG_ORDER */ + + /* Default: Selected */ + /* Meaning: Disables testing whether chunks are erased before writing to them*/ +@@ -54,11 +54,11 @@ that you need to continue to support. N + older-style format. + Note: Use of this option generally requires that MTD's oob layout be + adjusted to use the older-style format. See notes on tags formats and +-MTD versions. ++MTD versions in yaffs_mtdif1.c. + */ + /* Default: Not selected */ + /* Meaning: Use older-style on-NAND data format with pageStatus byte */ +-#define CONFIG_YAFFS_9BYTE_TAGS ++/* #define CONFIG_YAFFS_9BYTE_TAGS */ + + #endif /* YAFFS_OUT_OF_TREE */ + +--- a/fs/yaffs2/yaffs_checkptrw.c ++++ b/fs/yaffs2/yaffs_checkptrw.c +@@ -12,48 +12,43 @@ + */ + + const char *yaffs_checkptrw_c_version = +- "$Id: yaffs_checkptrw.c,v 1.14 2007-05-15 20:07:40 charles Exp $"; ++ "$Id: yaffs_checkptrw.c,v 1.18 2009-03-06 17:20:49 wookey Exp $"; + + + #include "yaffs_checkptrw.h" +- ++#include "yaffs_getblockinfo.h" + + static int yaffs_CheckpointSpaceOk(yaffs_Device *dev) + { +- + int blocksAvailable = dev->nErasedBlocks - dev->nReservedBlocks; + + T(YAFFS_TRACE_CHECKPOINT, + (TSTR("checkpt blocks available = %d" TENDSTR), + blocksAvailable)); + +- + return (blocksAvailable <= 0) ? 0 : 1; + } + + + static int yaffs_CheckpointErase(yaffs_Device *dev) + { +- + int i; + +- +- if(!dev->eraseBlockInNAND) ++ if (!dev->eraseBlockInNAND) + return 0; +- T(YAFFS_TRACE_CHECKPOINT,(TSTR("checking blocks %d to %d"TENDSTR), +- dev->internalStartBlock,dev->internalEndBlock)); ++ T(YAFFS_TRACE_CHECKPOINT, (TSTR("checking blocks %d to %d"TENDSTR), ++ dev->internalStartBlock, dev->internalEndBlock)); + +- for(i = dev->internalStartBlock; i <= dev->internalEndBlock; i++) { +- yaffs_BlockInfo *bi = yaffs_GetBlockInfo(dev,i); +- if(bi->blockState == YAFFS_BLOCK_STATE_CHECKPOINT){ +- T(YAFFS_TRACE_CHECKPOINT,(TSTR("erasing checkpt block %d"TENDSTR),i)); +- if(dev->eraseBlockInNAND(dev,i- dev->blockOffset /* realign */)){ ++ for (i = dev->internalStartBlock; i <= dev->internalEndBlock; i++) { ++ yaffs_BlockInfo *bi = yaffs_GetBlockInfo(dev, i); ++ if (bi->blockState == YAFFS_BLOCK_STATE_CHECKPOINT) { ++ T(YAFFS_TRACE_CHECKPOINT, (TSTR("erasing checkpt block %d"TENDSTR), i)); ++ if (dev->eraseBlockInNAND(dev, i - dev->blockOffset /* realign */)) { + bi->blockState = YAFFS_BLOCK_STATE_EMPTY; + dev->nErasedBlocks++; + dev->nFreeChunks += dev->nChunksPerBlock; +- } +- else { +- dev->markNANDBlockBad(dev,i); ++ } else { ++ dev->markNANDBlockBad(dev, i); + bi->blockState = YAFFS_BLOCK_STATE_DEAD; + } + } +@@ -71,23 +66,23 @@ static void yaffs_CheckpointFindNextEras + int blocksAvailable = dev->nErasedBlocks - dev->nReservedBlocks; + T(YAFFS_TRACE_CHECKPOINT, + (TSTR("allocating checkpt block: erased %d reserved %d avail %d next %d "TENDSTR), +- dev->nErasedBlocks,dev->nReservedBlocks,blocksAvailable,dev->checkpointNextBlock)); ++ dev->nErasedBlocks, dev->nReservedBlocks, blocksAvailable, dev->checkpointNextBlock)); + +- if(dev->checkpointNextBlock >= 0 && +- dev->checkpointNextBlock <= dev->internalEndBlock && +- blocksAvailable > 0){ +- +- for(i = dev->checkpointNextBlock; i <= dev->internalEndBlock; i++){ +- yaffs_BlockInfo *bi = yaffs_GetBlockInfo(dev,i); +- if(bi->blockState == YAFFS_BLOCK_STATE_EMPTY){ ++ if (dev->checkpointNextBlock >= 0 && ++ dev->checkpointNextBlock <= dev->internalEndBlock && ++ blocksAvailable > 0) { ++ ++ for (i = dev->checkpointNextBlock; i <= dev->internalEndBlock; i++) { ++ yaffs_BlockInfo *bi = yaffs_GetBlockInfo(dev, i); ++ if (bi->blockState == YAFFS_BLOCK_STATE_EMPTY) { + dev->checkpointNextBlock = i + 1; + dev->checkpointCurrentBlock = i; +- T(YAFFS_TRACE_CHECKPOINT,(TSTR("allocating checkpt block %d"TENDSTR),i)); ++ T(YAFFS_TRACE_CHECKPOINT, (TSTR("allocating checkpt block %d"TENDSTR), i)); + return; + } + } + } +- T(YAFFS_TRACE_CHECKPOINT,(TSTR("out of checkpt blocks"TENDSTR))); ++ T(YAFFS_TRACE_CHECKPOINT, (TSTR("out of checkpt blocks"TENDSTR))); + + dev->checkpointNextBlock = -1; + dev->checkpointCurrentBlock = -1; +@@ -98,30 +93,31 @@ static void yaffs_CheckpointFindNextChec + int i; + yaffs_ExtendedTags tags; + +- T(YAFFS_TRACE_CHECKPOINT,(TSTR("find next checkpt block: start: blocks %d next %d" TENDSTR), ++ T(YAFFS_TRACE_CHECKPOINT, (TSTR("find next checkpt block: start: blocks %d next %d" TENDSTR), + dev->blocksInCheckpoint, dev->checkpointNextBlock)); + +- if(dev->blocksInCheckpoint < dev->checkpointMaxBlocks) +- for(i = dev->checkpointNextBlock; i <= dev->internalEndBlock; i++){ ++ if (dev->blocksInCheckpoint < dev->checkpointMaxBlocks) ++ for (i = dev->checkpointNextBlock; i <= dev->internalEndBlock; i++) { + int chunk = i * dev->nChunksPerBlock; + int realignedChunk = chunk - dev->chunkOffset; + +- dev->readChunkWithTagsFromNAND(dev,realignedChunk,NULL,&tags); +- T(YAFFS_TRACE_CHECKPOINT,(TSTR("find next checkpt block: search: block %d oid %d seq %d eccr %d" TENDSTR), +- i, tags.objectId,tags.sequenceNumber,tags.eccResult)); ++ dev->readChunkWithTagsFromNAND(dev, realignedChunk, ++ NULL, &tags); ++ T(YAFFS_TRACE_CHECKPOINT, (TSTR("find next checkpt block: search: block %d oid %d seq %d eccr %d" TENDSTR), ++ i, tags.objectId, tags.sequenceNumber, tags.eccResult)); + +- if(tags.sequenceNumber == YAFFS_SEQUENCE_CHECKPOINT_DATA){ ++ if (tags.sequenceNumber == YAFFS_SEQUENCE_CHECKPOINT_DATA) { + /* Right kind of block */ + dev->checkpointNextBlock = tags.objectId; + dev->checkpointCurrentBlock = i; + dev->checkpointBlockList[dev->blocksInCheckpoint] = i; + dev->blocksInCheckpoint++; +- T(YAFFS_TRACE_CHECKPOINT,(TSTR("found checkpt block %d"TENDSTR),i)); ++ T(YAFFS_TRACE_CHECKPOINT, (TSTR("found checkpt block %d"TENDSTR), i)); + return; + } + } + +- T(YAFFS_TRACE_CHECKPOINT,(TSTR("found no more checkpt blocks"TENDSTR))); ++ T(YAFFS_TRACE_CHECKPOINT, (TSTR("found no more checkpt blocks"TENDSTR))); + + dev->checkpointNextBlock = -1; + dev->checkpointCurrentBlock = -1; +@@ -133,17 +129,17 @@ int yaffs_CheckpointOpen(yaffs_Device *d + + /* Got the functions we need? */ + if (!dev->writeChunkWithTagsToNAND || +- !dev->readChunkWithTagsFromNAND || +- !dev->eraseBlockInNAND || +- !dev->markNANDBlockBad) ++ !dev->readChunkWithTagsFromNAND || ++ !dev->eraseBlockInNAND || ++ !dev->markNANDBlockBad) + return 0; + +- if(forWriting && !yaffs_CheckpointSpaceOk(dev)) ++ if (forWriting && !yaffs_CheckpointSpaceOk(dev)) + return 0; + +- if(!dev->checkpointBuffer) +- dev->checkpointBuffer = YMALLOC_DMA(dev->nDataBytesPerChunk); +- if(!dev->checkpointBuffer) ++ if (!dev->checkpointBuffer) ++ dev->checkpointBuffer = YMALLOC_DMA(dev->totalBytesPerChunk); ++ if (!dev->checkpointBuffer) + return 0; + + +@@ -159,12 +155,10 @@ int yaffs_CheckpointOpen(yaffs_Device *d + dev->checkpointNextBlock = dev->internalStartBlock; + + /* Erase all the blocks in the checkpoint area */ +- if(forWriting){ +- memset(dev->checkpointBuffer,0,dev->nDataBytesPerChunk); ++ if (forWriting) { ++ memset(dev->checkpointBuffer, 0, dev->nDataBytesPerChunk); + dev->checkpointByteOffset = 0; + return yaffs_CheckpointErase(dev); +- +- + } else { + int i; + /* Set to a value that will kick off a read */ +@@ -174,7 +168,7 @@ int yaffs_CheckpointOpen(yaffs_Device *d + dev->blocksInCheckpoint = 0; + dev->checkpointMaxBlocks = (dev->internalEndBlock - dev->internalStartBlock)/16 + 2; + dev->checkpointBlockList = YMALLOC(sizeof(int) * dev->checkpointMaxBlocks); +- for(i = 0; i < dev->checkpointMaxBlocks; i++) ++ for (i = 0; i < dev->checkpointMaxBlocks; i++) + dev->checkpointBlockList[i] = -1; + } + +@@ -191,18 +185,17 @@ int yaffs_GetCheckpointSum(yaffs_Device + + static int yaffs_CheckpointFlushBuffer(yaffs_Device *dev) + { +- + int chunk; + int realignedChunk; + + yaffs_ExtendedTags tags; + +- if(dev->checkpointCurrentBlock < 0){ ++ if (dev->checkpointCurrentBlock < 0) { + yaffs_CheckpointFindNextErasedBlock(dev); + dev->checkpointCurrentChunk = 0; + } + +- if(dev->checkpointCurrentBlock < 0) ++ if (dev->checkpointCurrentBlock < 0) + return 0; + + tags.chunkDeleted = 0; +@@ -210,10 +203,10 @@ static int yaffs_CheckpointFlushBuffer(y + tags.chunkId = dev->checkpointPageSequence + 1; + tags.sequenceNumber = YAFFS_SEQUENCE_CHECKPOINT_DATA; + tags.byteCount = dev->nDataBytesPerChunk; +- if(dev->checkpointCurrentChunk == 0){ ++ if (dev->checkpointCurrentChunk == 0) { + /* First chunk we write for the block? Set block state to + checkpoint */ +- yaffs_BlockInfo *bi = yaffs_GetBlockInfo(dev,dev->checkpointCurrentBlock); ++ yaffs_BlockInfo *bi = yaffs_GetBlockInfo(dev, dev->checkpointCurrentBlock); + bi->blockState = YAFFS_BLOCK_STATE_CHECKPOINT; + dev->blocksInCheckpoint++; + } +@@ -221,28 +214,29 @@ static int yaffs_CheckpointFlushBuffer(y + chunk = dev->checkpointCurrentBlock * dev->nChunksPerBlock + dev->checkpointCurrentChunk; + + +- T(YAFFS_TRACE_CHECKPOINT,(TSTR("checkpoint wite buffer nand %d(%d:%d) objid %d chId %d" TENDSTR), +- chunk, dev->checkpointCurrentBlock, dev->checkpointCurrentChunk,tags.objectId,tags.chunkId)); ++ T(YAFFS_TRACE_CHECKPOINT, (TSTR("checkpoint wite buffer nand %d(%d:%d) objid %d chId %d" TENDSTR), ++ chunk, dev->checkpointCurrentBlock, dev->checkpointCurrentChunk, tags.objectId, tags.chunkId)); + + realignedChunk = chunk - dev->chunkOffset; + +- dev->writeChunkWithTagsToNAND(dev,realignedChunk,dev->checkpointBuffer,&tags); ++ dev->writeChunkWithTagsToNAND(dev, realignedChunk, ++ dev->checkpointBuffer, &tags); + dev->checkpointByteOffset = 0; + dev->checkpointPageSequence++; + dev->checkpointCurrentChunk++; +- if(dev->checkpointCurrentChunk >= dev->nChunksPerBlock){ ++ if (dev->checkpointCurrentChunk >= dev->nChunksPerBlock) { + dev->checkpointCurrentChunk = 0; + dev->checkpointCurrentBlock = -1; + } +- memset(dev->checkpointBuffer,0,dev->nDataBytesPerChunk); ++ memset(dev->checkpointBuffer, 0, dev->nDataBytesPerChunk); + + return 1; + } + + +-int yaffs_CheckpointWrite(yaffs_Device *dev,const void *data, int nBytes) ++int yaffs_CheckpointWrite(yaffs_Device *dev, const void *data, int nBytes) + { +- int i=0; ++ int i = 0; + int ok = 1; + + +@@ -250,17 +244,14 @@ int yaffs_CheckpointWrite(yaffs_Device * + + + +- if(!dev->checkpointBuffer) ++ if (!dev->checkpointBuffer) + return 0; + +- if(!dev->checkpointOpenForWrite) ++ if (!dev->checkpointOpenForWrite) + return -1; + +- while(i < nBytes && ok) { +- +- +- +- dev->checkpointBuffer[dev->checkpointByteOffset] = *dataBytes ; ++ while (i < nBytes && ok) { ++ dev->checkpointBuffer[dev->checkpointByteOffset] = *dataBytes; + dev->checkpointSum += *dataBytes; + dev->checkpointXor ^= *dataBytes; + +@@ -270,18 +261,17 @@ int yaffs_CheckpointWrite(yaffs_Device * + dev->checkpointByteCount++; + + +- if(dev->checkpointByteOffset < 0 || ++ if (dev->checkpointByteOffset < 0 || + dev->checkpointByteOffset >= dev->nDataBytesPerChunk) + ok = yaffs_CheckpointFlushBuffer(dev); +- + } + +- return i; ++ return i; + } + + int yaffs_CheckpointRead(yaffs_Device *dev, void *data, int nBytes) + { +- int i=0; ++ int i = 0; + int ok = 1; + yaffs_ExtendedTags tags; + +@@ -291,52 +281,54 @@ int yaffs_CheckpointRead(yaffs_Device *d + + __u8 *dataBytes = (__u8 *)data; + +- if(!dev->checkpointBuffer) ++ if (!dev->checkpointBuffer) + return 0; + +- if(dev->checkpointOpenForWrite) ++ if (dev->checkpointOpenForWrite) + return -1; + +- while(i < nBytes && ok) { ++ while (i < nBytes && ok) { + + +- if(dev->checkpointByteOffset < 0 || +- dev->checkpointByteOffset >= dev->nDataBytesPerChunk) { ++ if (dev->checkpointByteOffset < 0 || ++ dev->checkpointByteOffset >= dev->nDataBytesPerChunk) { + +- if(dev->checkpointCurrentBlock < 0){ ++ if (dev->checkpointCurrentBlock < 0) { + yaffs_CheckpointFindNextCheckpointBlock(dev); + dev->checkpointCurrentChunk = 0; + } + +- if(dev->checkpointCurrentBlock < 0) ++ if (dev->checkpointCurrentBlock < 0) + ok = 0; + else { +- +- chunk = dev->checkpointCurrentBlock * dev->nChunksPerBlock + +- dev->checkpointCurrentChunk; ++ chunk = dev->checkpointCurrentBlock * ++ dev->nChunksPerBlock + ++ dev->checkpointCurrentChunk; + + realignedChunk = chunk - dev->chunkOffset; + +- /* read in the next chunk */ +- /* printf("read checkpoint page %d\n",dev->checkpointPage); */ +- dev->readChunkWithTagsFromNAND(dev, realignedChunk, +- dev->checkpointBuffer, +- &tags); +- +- if(tags.chunkId != (dev->checkpointPageSequence + 1) || +- tags.sequenceNumber != YAFFS_SEQUENCE_CHECKPOINT_DATA) +- ok = 0; ++ /* read in the next chunk */ ++ /* printf("read checkpoint page %d\n",dev->checkpointPage); */ ++ dev->readChunkWithTagsFromNAND(dev, ++ realignedChunk, ++ dev->checkpointBuffer, ++ &tags); ++ ++ if (tags.chunkId != (dev->checkpointPageSequence + 1) || ++ tags.eccResult > YAFFS_ECC_RESULT_FIXED || ++ tags.sequenceNumber != YAFFS_SEQUENCE_CHECKPOINT_DATA) ++ ok = 0; + + dev->checkpointByteOffset = 0; + dev->checkpointPageSequence++; + dev->checkpointCurrentChunk++; + +- if(dev->checkpointCurrentChunk >= dev->nChunksPerBlock) ++ if (dev->checkpointCurrentChunk >= dev->nChunksPerBlock) + dev->checkpointCurrentBlock = -1; + } + } + +- if(ok){ ++ if (ok) { + *dataBytes = dev->checkpointBuffer[dev->checkpointByteOffset]; + dev->checkpointSum += *dataBytes; + dev->checkpointXor ^= *dataBytes; +@@ -353,17 +345,17 @@ int yaffs_CheckpointRead(yaffs_Device *d + int yaffs_CheckpointClose(yaffs_Device *dev) + { + +- if(dev->checkpointOpenForWrite){ +- if(dev->checkpointByteOffset != 0) ++ if (dev->checkpointOpenForWrite) { ++ if (dev->checkpointByteOffset != 0) + yaffs_CheckpointFlushBuffer(dev); + } else { + int i; +- for(i = 0; i < dev->blocksInCheckpoint && dev->checkpointBlockList[i] >= 0; i++){ +- yaffs_BlockInfo *bi = yaffs_GetBlockInfo(dev,dev->checkpointBlockList[i]); +- if(bi->blockState == YAFFS_BLOCK_STATE_EMPTY) ++ for (i = 0; i < dev->blocksInCheckpoint && dev->checkpointBlockList[i] >= 0; i++) { ++ yaffs_BlockInfo *bi = yaffs_GetBlockInfo(dev, dev->checkpointBlockList[i]); ++ if (bi->blockState == YAFFS_BLOCK_STATE_EMPTY) + bi->blockState = YAFFS_BLOCK_STATE_CHECKPOINT; + else { +- // Todo this looks odd... ++ /* Todo this looks odd... */ + } + } + YFREE(dev->checkpointBlockList); +@@ -374,27 +366,25 @@ int yaffs_CheckpointClose(yaffs_Device * + dev->nErasedBlocks -= dev->blocksInCheckpoint; + + +- T(YAFFS_TRACE_CHECKPOINT,(TSTR("checkpoint byte count %d" TENDSTR), ++ T(YAFFS_TRACE_CHECKPOINT, (TSTR("checkpoint byte count %d" TENDSTR), + dev->checkpointByteCount)); + +- if(dev->checkpointBuffer){ ++ if (dev->checkpointBuffer) { + /* free the buffer */ + YFREE(dev->checkpointBuffer); + dev->checkpointBuffer = NULL; + return 1; +- } +- else ++ } else + return 0; +- + } + + int yaffs_CheckpointInvalidateStream(yaffs_Device *dev) + { + /* Erase the first checksum block */ + +- T(YAFFS_TRACE_CHECKPOINT,(TSTR("checkpoint invalidate"TENDSTR))); ++ T(YAFFS_TRACE_CHECKPOINT, (TSTR("checkpoint invalidate"TENDSTR))); + +- if(!yaffs_CheckpointSpaceOk(dev)) ++ if (!yaffs_CheckpointSpaceOk(dev)) + return 0; + + return yaffs_CheckpointErase(dev); +--- a/fs/yaffs2/yaffs_checkptrw.h ++++ b/fs/yaffs2/yaffs_checkptrw.h +@@ -20,9 +20,9 @@ + + int yaffs_CheckpointOpen(yaffs_Device *dev, int forWriting); + +-int yaffs_CheckpointWrite(yaffs_Device *dev,const void *data, int nBytes); ++int yaffs_CheckpointWrite(yaffs_Device *dev, const void *data, int nBytes); + +-int yaffs_CheckpointRead(yaffs_Device *dev,void *data, int nBytes); ++int yaffs_CheckpointRead(yaffs_Device *dev, void *data, int nBytes); + + int yaffs_GetCheckpointSum(yaffs_Device *dev, __u32 *sum); + +--- a/fs/yaffs2/yaffs_ecc.c ++++ b/fs/yaffs2/yaffs_ecc.c +@@ -29,7 +29,7 @@ + */ + + const char *yaffs_ecc_c_version = +- "$Id: yaffs_ecc.c,v 1.9 2007-02-14 01:09:06 wookey Exp $"; ++ "$Id: yaffs_ecc.c,v 1.11 2009-03-06 17:20:50 wookey Exp $"; + + #include "yportenv.h" + +@@ -109,12 +109,10 @@ void yaffs_ECCCalculate(const unsigned c + b = column_parity_table[*data++]; + col_parity ^= b; + +- if (b & 0x01) // odd number of bits in the byte +- { ++ if (b & 0x01) { /* odd number of bits in the byte */ + line_parity ^= i; + line_parity_prime ^= ~i; + } +- + } + + ecc[2] = (~col_parity) | 0x03; +@@ -158,7 +156,7 @@ void yaffs_ECCCalculate(const unsigned c + ecc[0] = ~t; + + #ifdef CONFIG_YAFFS_ECC_WRONG_ORDER +- // Swap the bytes into the wrong order ++ /* Swap the bytes into the wrong order */ + t = ecc[0]; + ecc[0] = ecc[1]; + ecc[1] = t; +@@ -189,7 +187,7 @@ int yaffs_ECCCorrect(unsigned char *data + unsigned bit; + + #ifdef CONFIG_YAFFS_ECC_WRONG_ORDER +- // swap the bytes to correct for the wrong order ++ /* swap the bytes to correct for the wrong order */ + unsigned char t; + + t = d0; +@@ -251,7 +249,7 @@ int yaffs_ECCCorrect(unsigned char *data + * ECCxxxOther does ECC calcs on arbitrary n bytes of data + */ + void yaffs_ECCCalculateOther(const unsigned char *data, unsigned nBytes, +- yaffs_ECCOther * eccOther) ++ yaffs_ECCOther *eccOther) + { + unsigned int i; + +@@ -278,8 +276,8 @@ void yaffs_ECCCalculateOther(const unsig + } + + int yaffs_ECCCorrectOther(unsigned char *data, unsigned nBytes, +- yaffs_ECCOther * read_ecc, +- const yaffs_ECCOther * test_ecc) ++ yaffs_ECCOther *read_ecc, ++ const yaffs_ECCOther *test_ecc) + { + unsigned char cDelta; /* column parity delta */ + unsigned lDelta; /* line parity delta */ +@@ -294,8 +292,7 @@ int yaffs_ECCCorrectOther(unsigned char + return 0; /* no error */ + + if (lDelta == ~lDeltaPrime && +- (((cDelta ^ (cDelta >> 1)) & 0x15) == 0x15)) +- { ++ (((cDelta ^ (cDelta >> 1)) & 0x15) == 0x15)) { + /* Single bit (recoverable) error in data */ + + bit = 0; +@@ -307,7 +304,7 @@ int yaffs_ECCCorrectOther(unsigned char + if (cDelta & 0x02) + bit |= 0x01; + +- if(lDelta >= nBytes) ++ if (lDelta >= nBytes) + return -1; + + data[lDelta] ^= (1 << bit); +@@ -316,7 +313,7 @@ int yaffs_ECCCorrectOther(unsigned char + } + + if ((yaffs_CountBits32(lDelta) + yaffs_CountBits32(lDeltaPrime) + +- yaffs_CountBits(cDelta)) == 1) { ++ yaffs_CountBits(cDelta)) == 1) { + /* Reccoverable error in ecc */ + + *read_ecc = *test_ecc; +@@ -326,6 +323,4 @@ int yaffs_ECCCorrectOther(unsigned char + /* Unrecoverable error */ + + return -1; +- + } +- +--- a/fs/yaffs2/yaffs_ecc.h ++++ b/fs/yaffs2/yaffs_ecc.h +@@ -13,15 +13,15 @@ + * Note: Only YAFFS headers are LGPL, YAFFS C code is covered by GPL. + */ + +- /* +- * This code implements the ECC algorithm used in SmartMedia. +- * +- * The ECC comprises 22 bits of parity information and is stuffed into 3 bytes. +- * The two unused bit are set to 1. +- * The ECC can correct single bit errors in a 256-byte page of data. Thus, two such ECC +- * blocks are used on a 512-byte NAND page. +- * +- */ ++/* ++ * This code implements the ECC algorithm used in SmartMedia. ++ * ++ * The ECC comprises 22 bits of parity information and is stuffed into 3 bytes. ++ * The two unused bit are set to 1. ++ * The ECC can correct single bit errors in a 256-byte page of data. Thus, two such ECC ++ * blocks are used on a 512-byte NAND page. ++ * ++ */ + + #ifndef __YAFFS_ECC_H__ + #define __YAFFS_ECC_H__ +@@ -34,11 +34,11 @@ typedef struct { + + void yaffs_ECCCalculate(const unsigned char *data, unsigned char *ecc); + int yaffs_ECCCorrect(unsigned char *data, unsigned char *read_ecc, +- const unsigned char *test_ecc); ++ const unsigned char *test_ecc); + + void yaffs_ECCCalculateOther(const unsigned char *data, unsigned nBytes, +- yaffs_ECCOther * ecc); ++ yaffs_ECCOther *ecc); + int yaffs_ECCCorrectOther(unsigned char *data, unsigned nBytes, +- yaffs_ECCOther * read_ecc, +- const yaffs_ECCOther * test_ecc); ++ yaffs_ECCOther *read_ecc, ++ const yaffs_ECCOther *test_ecc); + #endif +--- a/fs/yaffs2/yaffs_fs.c ++++ b/fs/yaffs2/yaffs_fs.c +@@ -1,7 +1,7 @@ + /* + * YAFFS: Yet Another Flash File System. A NAND-flash specific file system. + * +- * Copyright (C) 2002-2007 Aleph One Ltd. ++ * Copyright (C) 2002-2009 Aleph One Ltd. + * for Toby Churchill Ltd and Brightstar Engineering + * + * Created by Charles Manning +@@ -32,18 +32,17 @@ + */ + + const char *yaffs_fs_c_version = +- "$Id: yaffs_fs.c,v 1.63 2007-09-19 20:35:40 imcd Exp $"; ++ "$Id: yaffs_fs.c,v 1.79 2009-03-17 01:12:00 wookey Exp $"; + extern const char *yaffs_guts_c_version; + + #include +-#if (LINUX_VERSION_CODE < KERNEL_VERSION(2,6,19)) ++#if (LINUX_VERSION_CODE < KERNEL_VERSION(2, 6, 19)) + #include + #endif + #include + #include + #include + #include +-#include + #include + #include + #include +@@ -53,10 +52,12 @@ extern const char *yaffs_guts_c_version; + #include + #include + +-#if (LINUX_VERSION_CODE > KERNEL_VERSION(2,5,0)) ++#include "asm/div64.h" ++ ++#if (LINUX_VERSION_CODE > KERNEL_VERSION(2, 5, 0)) + + #include /* Added NCB 15-8-2003 */ +-#include ++#include + #define UnlockPage(p) unlock_page(p) + #define Page_Uptodate(page) test_bit(PG_uptodate, &(page)->flags) + +@@ -69,22 +70,45 @@ extern const char *yaffs_guts_c_version; + #define BDEVNAME_SIZE 0 + #define yaffs_devname(sb, buf) kdevname(sb->s_dev) + +-#if (LINUX_VERSION_CODE < KERNEL_VERSION(2,5,0)) ++#if (LINUX_VERSION_CODE < KERNEL_VERSION(2, 5, 0)) + /* added NCB 26/5/2006 for 2.4.25-vrs2-tcl1 kernel */ + #define __user + #endif + + #endif + +-#if (LINUX_VERSION_CODE > KERNEL_VERSION(2,6,17)) ++#if (LINUX_VERSION_CODE < KERNEL_VERSION(2, 6, 26)) ++#define YPROC_ROOT (&proc_root) ++#else ++#define YPROC_ROOT NULL ++#endif ++ ++#if (LINUX_VERSION_CODE > KERNEL_VERSION(2, 6, 17)) + #define WRITE_SIZE_STR "writesize" +-#define WRITE_SIZE(mtd) (mtd)->writesize ++#define WRITE_SIZE(mtd) ((mtd)->writesize) + #else + #define WRITE_SIZE_STR "oobblock" +-#define WRITE_SIZE(mtd) (mtd)->oobblock ++#define WRITE_SIZE(mtd) ((mtd)->oobblock) + #endif + +-#include ++#if (LINUX_VERSION_CODE > KERNEL_VERSION(2, 6, 27)) ++#define YAFFS_USE_WRITE_BEGIN_END 1 ++#else ++#define YAFFS_USE_WRITE_BEGIN_END 0 ++#endif ++ ++#if (LINUX_VERSION_CODE > KERNEL_VERSION(2, 6, 28)) ++static uint32_t YCALCBLOCKS(uint64_t partition_size, uint32_t block_size) ++{ ++ uint64_t result = partition_size; ++ do_div(result, block_size); ++ return (uint32_t)result; ++} ++#else ++#define YCALCBLOCKS(s, b) ((s)/(b)) ++#endif ++ ++#include + + #include "yportenv.h" + #include "yaffs_guts.h" +@@ -96,28 +120,44 @@ extern const char *yaffs_guts_c_version; + + unsigned int yaffs_traceMask = YAFFS_TRACE_BAD_BLOCKS; + unsigned int yaffs_wr_attempts = YAFFS_WR_ATTEMPTS; ++unsigned int yaffs_auto_checkpoint = 1; + + /* Module Parameters */ +-#if (LINUX_VERSION_CODE > KERNEL_VERSION(2,5,0)) +-module_param(yaffs_traceMask,uint,0644); +-module_param(yaffs_wr_attempts,uint,0644); ++#if (LINUX_VERSION_CODE > KERNEL_VERSION(2, 5, 0)) ++module_param(yaffs_traceMask, uint, 0644); ++module_param(yaffs_wr_attempts, uint, 0644); ++module_param(yaffs_auto_checkpoint, uint, 0644); ++#else ++MODULE_PARM(yaffs_traceMask, "i"); ++MODULE_PARM(yaffs_wr_attempts, "i"); ++MODULE_PARM(yaffs_auto_checkpoint, "i"); ++#endif ++ ++#if (LINUX_VERSION_CODE < KERNEL_VERSION(2, 6, 25)) ++/* use iget and read_inode */ ++#define Y_IGET(sb, inum) iget((sb), (inum)) ++static void yaffs_read_inode(struct inode *inode); ++ + #else +-MODULE_PARM(yaffs_traceMask,"i"); +-MODULE_PARM(yaffs_wr_attempts,"i"); ++/* Call local equivalent */ ++#define YAFFS_USE_OWN_IGET ++#define Y_IGET(sb, inum) yaffs_iget((sb), (inum)) ++ ++static struct inode *yaffs_iget(struct super_block *sb, unsigned long ino); + #endif + + /*#define T(x) printk x */ + +-#if (LINUX_VERSION_CODE > KERNEL_VERSION(2,6,18)) +-#define yaffs_InodeToObjectLV(iptr) (iptr)->i_private ++#if (LINUX_VERSION_CODE > KERNEL_VERSION(2, 6, 18)) ++#define yaffs_InodeToObjectLV(iptr) ((iptr)->i_private) + #else +-#define yaffs_InodeToObjectLV(iptr) (iptr)->u.generic_ip ++#define yaffs_InodeToObjectLV(iptr) ((iptr)->u.generic_ip) + #endif + + #define yaffs_InodeToObject(iptr) ((yaffs_Object *)(yaffs_InodeToObjectLV(iptr))) + #define yaffs_DentryToObject(dptr) yaffs_InodeToObject((dptr)->d_inode) + +-#if (LINUX_VERSION_CODE > KERNEL_VERSION(2,5,0)) ++#if (LINUX_VERSION_CODE > KERNEL_VERSION(2, 5, 0)) + #define yaffs_SuperToDevice(sb) ((yaffs_Device *)sb->s_fs_info) + #else + #define yaffs_SuperToDevice(sb) ((yaffs_Device *)sb->u.generic_sbp) +@@ -126,47 +166,49 @@ MODULE_PARM(yaffs_wr_attempts,"i"); + static void yaffs_put_super(struct super_block *sb); + + static ssize_t yaffs_file_write(struct file *f, const char *buf, size_t n, +- loff_t * pos); ++ loff_t *pos); ++static ssize_t yaffs_hold_space(struct file *f); ++static void yaffs_release_space(struct file *f); + +-#if (LINUX_VERSION_CODE > KERNEL_VERSION(2,6,17)) ++#if (LINUX_VERSION_CODE > KERNEL_VERSION(2, 6, 17)) + static int yaffs_file_flush(struct file *file, fl_owner_t id); + #else + static int yaffs_file_flush(struct file *file); + #endif + + static int yaffs_sync_object(struct file *file, struct dentry *dentry, +- int datasync); ++ int datasync); + + static int yaffs_readdir(struct file *f, void *dirent, filldir_t filldir); + +-#if (LINUX_VERSION_CODE > KERNEL_VERSION(2,5,0)) ++#if (LINUX_VERSION_CODE > KERNEL_VERSION(2, 5, 0)) + static int yaffs_create(struct inode *dir, struct dentry *dentry, int mode, + struct nameidata *n); + static struct dentry *yaffs_lookup(struct inode *dir, struct dentry *dentry, +- struct nameidata *n); ++ struct nameidata *n); + #else + static int yaffs_create(struct inode *dir, struct dentry *dentry, int mode); + static struct dentry *yaffs_lookup(struct inode *dir, struct dentry *dentry); + #endif + static int yaffs_link(struct dentry *old_dentry, struct inode *dir, +- struct dentry *dentry); ++ struct dentry *dentry); + static int yaffs_unlink(struct inode *dir, struct dentry *dentry); + static int yaffs_symlink(struct inode *dir, struct dentry *dentry, +- const char *symname); ++ const char *symname); + static int yaffs_mkdir(struct inode *dir, struct dentry *dentry, int mode); + +-#if (LINUX_VERSION_CODE > KERNEL_VERSION(2,5,0)) ++#if (LINUX_VERSION_CODE > KERNEL_VERSION(2, 5, 0)) + static int yaffs_mknod(struct inode *dir, struct dentry *dentry, int mode, +- dev_t dev); ++ dev_t dev); + #else + static int yaffs_mknod(struct inode *dir, struct dentry *dentry, int mode, +- int dev); ++ int dev); + #endif + static int yaffs_rename(struct inode *old_dir, struct dentry *old_dentry, + struct inode *new_dir, struct dentry *new_dentry); + static int yaffs_setattr(struct dentry *dentry, struct iattr *attr); + +-#if (LINUX_VERSION_CODE > KERNEL_VERSION(2,6,17)) ++#if (LINUX_VERSION_CODE > KERNEL_VERSION(2, 6, 17)) + static int yaffs_sync_fs(struct super_block *sb, int wait); + static void yaffs_write_super(struct super_block *sb); + #else +@@ -174,33 +216,47 @@ static int yaffs_sync_fs(struct super_bl + static int yaffs_write_super(struct super_block *sb); + #endif + +-#if (LINUX_VERSION_CODE > KERNEL_VERSION(2,6,17)) ++#if (LINUX_VERSION_CODE > KERNEL_VERSION(2, 6, 17)) + static int yaffs_statfs(struct dentry *dentry, struct kstatfs *buf); +-#elif (LINUX_VERSION_CODE > KERNEL_VERSION(2,5,0)) ++#elif (LINUX_VERSION_CODE > KERNEL_VERSION(2, 5, 0)) + static int yaffs_statfs(struct super_block *sb, struct kstatfs *buf); + #else + static int yaffs_statfs(struct super_block *sb, struct statfs *buf); + #endif +-static void yaffs_read_inode(struct inode *inode); + ++#ifdef YAFFS_HAS_PUT_INODE + static void yaffs_put_inode(struct inode *inode); ++#endif ++ + static void yaffs_delete_inode(struct inode *); + static void yaffs_clear_inode(struct inode *); + + static int yaffs_readpage(struct file *file, struct page *page); +-#if (LINUX_VERSION_CODE > KERNEL_VERSION(2,5,0)) ++#if (LINUX_VERSION_CODE > KERNEL_VERSION(2, 5, 0)) + static int yaffs_writepage(struct page *page, struct writeback_control *wbc); + #else + static int yaffs_writepage(struct page *page); + #endif ++ ++ ++#if (YAFFS_USE_WRITE_BEGIN_END != 0) ++static int yaffs_write_begin(struct file *filp, struct address_space *mapping, ++ loff_t pos, unsigned len, unsigned flags, ++ struct page **pagep, void **fsdata); ++static int yaffs_write_end(struct file *filp, struct address_space *mapping, ++ loff_t pos, unsigned len, unsigned copied, ++ struct page *pg, void *fsdadata); ++#else + static int yaffs_prepare_write(struct file *f, struct page *pg, +- unsigned offset, unsigned to); ++ unsigned offset, unsigned to); + static int yaffs_commit_write(struct file *f, struct page *pg, unsigned offset, +- unsigned to); ++ unsigned to); + +-static int yaffs_readlink(struct dentry *dentry, char __user * buffer, +- int buflen); +-#if (LINUX_VERSION_CODE > KERNEL_VERSION(2,6,13)) ++#endif ++ ++static int yaffs_readlink(struct dentry *dentry, char __user *buffer, ++ int buflen); ++#if (LINUX_VERSION_CODE > KERNEL_VERSION(2, 6, 13)) + static void *yaffs_follow_link(struct dentry *dentry, struct nameidata *nd); + #else + static int yaffs_follow_link(struct dentry *dentry, struct nameidata *nd); +@@ -209,12 +265,17 @@ static int yaffs_follow_link(struct dent + static struct address_space_operations yaffs_file_address_operations = { + .readpage = yaffs_readpage, + .writepage = yaffs_writepage, ++#if (YAFFS_USE_WRITE_BEGIN_END > 0) ++ .write_begin = yaffs_write_begin, ++ .write_end = yaffs_write_end, ++#else + .prepare_write = yaffs_prepare_write, + .commit_write = yaffs_commit_write, ++#endif + }; + +-#if (LINUX_VERSION_CODE > KERNEL_VERSION(2,6,22)) +-static struct file_operations yaffs_file_operations = { ++#if (LINUX_VERSION_CODE > KERNEL_VERSION(2, 6, 22)) ++static const struct file_operations yaffs_file_operations = { + .read = do_sync_read, + .write = do_sync_write, + .aio_read = generic_file_aio_read, +@@ -224,11 +285,12 @@ static struct file_operations yaffs_file + .fsync = yaffs_sync_object, + .splice_read = generic_file_splice_read, + .splice_write = generic_file_splice_write, ++ .llseek = generic_file_llseek, + }; + +-#elif (LINUX_VERSION_CODE > KERNEL_VERSION(2,6,18)) ++#elif (LINUX_VERSION_CODE > KERNEL_VERSION(2, 6, 18)) + +-static struct file_operations yaffs_file_operations = { ++static const struct file_operations yaffs_file_operations = { + .read = do_sync_read, + .write = do_sync_write, + .aio_read = generic_file_aio_read, +@@ -241,29 +303,29 @@ static struct file_operations yaffs_file + + #else + +-static struct file_operations yaffs_file_operations = { ++static const struct file_operations yaffs_file_operations = { + .read = generic_file_read, + .write = generic_file_write, + .mmap = generic_file_mmap, + .flush = yaffs_file_flush, + .fsync = yaffs_sync_object, +-#if (LINUX_VERSION_CODE > KERNEL_VERSION(2,5,0)) ++#if (LINUX_VERSION_CODE > KERNEL_VERSION(2, 5, 0)) + .sendfile = generic_file_sendfile, + #endif + }; + #endif + +-static struct inode_operations yaffs_file_inode_operations = { ++static const struct inode_operations yaffs_file_inode_operations = { + .setattr = yaffs_setattr, + }; + +-static struct inode_operations yaffs_symlink_inode_operations = { ++static const struct inode_operations yaffs_symlink_inode_operations = { + .readlink = yaffs_readlink, + .follow_link = yaffs_follow_link, + .setattr = yaffs_setattr, + }; + +-static struct inode_operations yaffs_dir_inode_operations = { ++static const struct inode_operations yaffs_dir_inode_operations = { + .create = yaffs_create, + .lookup = yaffs_lookup, + .link = yaffs_link, +@@ -276,16 +338,21 @@ static struct inode_operations yaffs_dir + .setattr = yaffs_setattr, + }; + +-static struct file_operations yaffs_dir_operations = { ++static const struct file_operations yaffs_dir_operations = { + .read = generic_read_dir, + .readdir = yaffs_readdir, + .fsync = yaffs_sync_object, + }; + +-static struct super_operations yaffs_super_ops = { ++static const struct super_operations yaffs_super_ops = { + .statfs = yaffs_statfs, ++ ++#ifndef YAFFS_USE_OWN_IGET + .read_inode = yaffs_read_inode, ++#endif ++#ifdef YAFFS_HAS_PUT_INODE + .put_inode = yaffs_put_inode, ++#endif + .put_super = yaffs_put_super, + .delete_inode = yaffs_delete_inode, + .clear_inode = yaffs_clear_inode, +@@ -293,22 +360,21 @@ static struct super_operations yaffs_sup + .write_super = yaffs_write_super, + }; + +-static void yaffs_GrossLock(yaffs_Device * dev) ++static void yaffs_GrossLock(yaffs_Device *dev) + { +- T(YAFFS_TRACE_OS, (KERN_DEBUG "yaffs locking\n")); +- ++ T(YAFFS_TRACE_OS, ("yaffs locking %p\n", current)); + down(&dev->grossLock); ++ T(YAFFS_TRACE_OS, ("yaffs locked %p\n", current)); + } + +-static void yaffs_GrossUnlock(yaffs_Device * dev) ++static void yaffs_GrossUnlock(yaffs_Device *dev) + { +- T(YAFFS_TRACE_OS, (KERN_DEBUG "yaffs unlocking\n")); ++ T(YAFFS_TRACE_OS, ("yaffs unlocking %p\n", current)); + up(&dev->grossLock); +- + } + +-static int yaffs_readlink(struct dentry *dentry, char __user * buffer, +- int buflen) ++static int yaffs_readlink(struct dentry *dentry, char __user *buffer, ++ int buflen) + { + unsigned char *alias; + int ret; +@@ -329,7 +395,7 @@ static int yaffs_readlink(struct dentry + return ret; + } + +-#if (LINUX_VERSION_CODE > KERNEL_VERSION(2,6,13)) ++#if (LINUX_VERSION_CODE > KERNEL_VERSION(2, 6, 13)) + static void *yaffs_follow_link(struct dentry *dentry, struct nameidata *nd) + #else + static int yaffs_follow_link(struct dentry *dentry, struct nameidata *nd) +@@ -345,32 +411,31 @@ static int yaffs_follow_link(struct dent + + yaffs_GrossUnlock(dev); + +- if (!alias) +- { ++ if (!alias) { + ret = -ENOMEM; + goto out; +- } ++ } + + ret = vfs_follow_link(nd, alias); + kfree(alias); + out: +-#if (LINUX_VERSION_CODE > KERNEL_VERSION(2,6,13)) +- return ERR_PTR (ret); ++#if (LINUX_VERSION_CODE > KERNEL_VERSION(2, 6, 13)) ++ return ERR_PTR(ret); + #else + return ret; + #endif + } + + struct inode *yaffs_get_inode(struct super_block *sb, int mode, int dev, +- yaffs_Object * obj); ++ yaffs_Object *obj); + + /* + * Lookup is used to find objects in the fs + */ +-#if (LINUX_VERSION_CODE > KERNEL_VERSION(2,5,0)) ++#if (LINUX_VERSION_CODE > KERNEL_VERSION(2, 5, 0)) + + static struct dentry *yaffs_lookup(struct inode *dir, struct dentry *dentry, +- struct nameidata *n) ++ struct nameidata *n) + #else + static struct dentry *yaffs_lookup(struct inode *dir, struct dentry *dentry) + #endif +@@ -383,12 +448,11 @@ static struct dentry *yaffs_lookup(struc + yaffs_GrossLock(dev); + + T(YAFFS_TRACE_OS, +- (KERN_DEBUG "yaffs_lookup for %d:%s\n", +- yaffs_InodeToObject(dir)->objectId, dentry->d_name.name)); ++ ("yaffs_lookup for %d:%s\n", ++ yaffs_InodeToObject(dir)->objectId, dentry->d_name.name)); + +- obj = +- yaffs_FindObjectByName(yaffs_InodeToObject(dir), +- dentry->d_name.name); ++ obj = yaffs_FindObjectByName(yaffs_InodeToObject(dir), ++ dentry->d_name.name); + + obj = yaffs_GetEquivalentObject(obj); /* in case it was a hardlink */ + +@@ -397,13 +461,13 @@ static struct dentry *yaffs_lookup(struc + + if (obj) { + T(YAFFS_TRACE_OS, +- (KERN_DEBUG "yaffs_lookup found %d\n", obj->objectId)); ++ ("yaffs_lookup found %d\n", obj->objectId)); + + inode = yaffs_get_inode(dir->i_sb, obj->yst_mode, 0, obj); + + if (inode) { + T(YAFFS_TRACE_OS, +- (KERN_DEBUG "yaffs_loookup dentry \n")); ++ ("yaffs_loookup dentry \n")); + /* #if 0 asserted by NCB for 2.5/6 compatability - falls through to + * d_add even if NULL inode */ + #if 0 +@@ -416,7 +480,7 @@ static struct dentry *yaffs_lookup(struc + } + + } else { +- T(YAFFS_TRACE_OS, (KERN_DEBUG "yaffs_lookup not found\n")); ++ T(YAFFS_TRACE_OS, ("yaffs_lookup not found\n")); + + } + +@@ -425,20 +489,22 @@ static struct dentry *yaffs_lookup(struc + d_add(dentry, inode); + + return NULL; +- /* return (ERR_PTR(-EIO)); */ +- + } + ++ ++#ifdef YAFFS_HAS_PUT_INODE ++ + /* For now put inode is just for debugging + * Put inode is called when the inode **structure** is put. + */ + static void yaffs_put_inode(struct inode *inode) + { + T(YAFFS_TRACE_OS, +- ("yaffs_put_inode: ino %d, count %d\n", (int)inode->i_ino, +- atomic_read(&inode->i_count))); ++ ("yaffs_put_inode: ino %d, count %d\n", (int)inode->i_ino, ++ atomic_read(&inode->i_count))); + + } ++#endif + + /* clear is called to tell the fs to release any per-inode data it holds */ + static void yaffs_clear_inode(struct inode *inode) +@@ -449,9 +515,9 @@ static void yaffs_clear_inode(struct ino + obj = yaffs_InodeToObject(inode); + + T(YAFFS_TRACE_OS, +- ("yaffs_clear_inode: ino %d, count %d %s\n", (int)inode->i_ino, +- atomic_read(&inode->i_count), +- obj ? "object exists" : "null object")); ++ ("yaffs_clear_inode: ino %d, count %d %s\n", (int)inode->i_ino, ++ atomic_read(&inode->i_count), ++ obj ? "object exists" : "null object")); + + if (obj) { + dev = obj->myDev; +@@ -486,23 +552,23 @@ static void yaffs_delete_inode(struct in + yaffs_Device *dev; + + T(YAFFS_TRACE_OS, +- ("yaffs_delete_inode: ino %d, count %d %s\n", (int)inode->i_ino, +- atomic_read(&inode->i_count), +- obj ? "object exists" : "null object")); ++ ("yaffs_delete_inode: ino %d, count %d %s\n", (int)inode->i_ino, ++ atomic_read(&inode->i_count), ++ obj ? "object exists" : "null object")); + + if (obj) { + dev = obj->myDev; + yaffs_GrossLock(dev); +- yaffs_DeleteFile(obj); ++ yaffs_DeleteObject(obj); + yaffs_GrossUnlock(dev); + } +-#if (LINUX_VERSION_CODE > KERNEL_VERSION(2,6,13)) +- truncate_inode_pages (&inode->i_data, 0); ++#if (LINUX_VERSION_CODE > KERNEL_VERSION(2, 6, 13)) ++ truncate_inode_pages(&inode->i_data, 0); + #endif + clear_inode(inode); + } + +-#if (LINUX_VERSION_CODE > KERNEL_VERSION(2,6,17)) ++#if (LINUX_VERSION_CODE > KERNEL_VERSION(2, 6, 17)) + static int yaffs_file_flush(struct file *file, fl_owner_t id) + #else + static int yaffs_file_flush(struct file *file) +@@ -513,8 +579,8 @@ static int yaffs_file_flush(struct file + yaffs_Device *dev = obj->myDev; + + T(YAFFS_TRACE_OS, +- (KERN_DEBUG "yaffs_file_flush object %d (%s)\n", obj->objectId, +- obj->dirty ? "dirty" : "clean")); ++ ("yaffs_file_flush object %d (%s)\n", obj->objectId, ++ obj->dirty ? "dirty" : "clean")); + + yaffs_GrossLock(dev); + +@@ -535,15 +601,15 @@ static int yaffs_readpage_nolock(struct + + yaffs_Device *dev; + +- T(YAFFS_TRACE_OS, (KERN_DEBUG "yaffs_readpage at %08x, size %08x\n", +- (unsigned)(pg->index << PAGE_CACHE_SHIFT), +- (unsigned)PAGE_CACHE_SIZE)); ++ T(YAFFS_TRACE_OS, ("yaffs_readpage at %08x, size %08x\n", ++ (unsigned)(pg->index << PAGE_CACHE_SHIFT), ++ (unsigned)PAGE_CACHE_SIZE)); + + obj = yaffs_DentryToObject(f->f_dentry); + + dev = obj->myDev; + +-#if (LINUX_VERSION_CODE > KERNEL_VERSION(2,5,0)) ++#if (LINUX_VERSION_CODE > KERNEL_VERSION(2, 5, 0)) + BUG_ON(!PageLocked(pg)); + #else + if (!PageLocked(pg)) +@@ -555,9 +621,9 @@ static int yaffs_readpage_nolock(struct + + yaffs_GrossLock(dev); + +- ret = +- yaffs_ReadDataFromFile(obj, pg_buf, pg->index << PAGE_CACHE_SHIFT, +- PAGE_CACHE_SIZE); ++ ret = yaffs_ReadDataFromFile(obj, pg_buf, ++ pg->index << PAGE_CACHE_SHIFT, ++ PAGE_CACHE_SIZE); + + yaffs_GrossUnlock(dev); + +@@ -575,7 +641,7 @@ static int yaffs_readpage_nolock(struct + flush_dcache_page(pg); + kunmap(pg); + +- T(YAFFS_TRACE_OS, (KERN_DEBUG "yaffs_readpage done\n")); ++ T(YAFFS_TRACE_OS, ("yaffs_readpage done\n")); + return ret; + } + +@@ -593,7 +659,7 @@ static int yaffs_readpage(struct file *f + + /* writepage inspired by/stolen from smbfs */ + +-#if (LINUX_VERSION_CODE > KERNEL_VERSION(2,5,0)) ++#if (LINUX_VERSION_CODE > KERNEL_VERSION(2, 5, 0)) + static int yaffs_writepage(struct page *page, struct writeback_control *wbc) + #else + static int yaffs_writepage(struct page *page) +@@ -616,12 +682,11 @@ static int yaffs_writepage(struct page * + + if (offset > inode->i_size) { + T(YAFFS_TRACE_OS, +- (KERN_DEBUG +- "yaffs_writepage at %08x, inode size = %08x!!!\n", +- (unsigned)(page->index << PAGE_CACHE_SHIFT), +- (unsigned)inode->i_size)); ++ ("yaffs_writepage at %08x, inode size = %08x!!!\n", ++ (unsigned)(page->index << PAGE_CACHE_SHIFT), ++ (unsigned)inode->i_size)); + T(YAFFS_TRACE_OS, +- (KERN_DEBUG " -> don't care!!\n")); ++ (" -> don't care!!\n")); + unlock_page(page); + return 0; + } +@@ -629,11 +694,10 @@ static int yaffs_writepage(struct page * + end_index = inode->i_size >> PAGE_CACHE_SHIFT; + + /* easy case */ +- if (page->index < end_index) { ++ if (page->index < end_index) + nBytes = PAGE_CACHE_SIZE; +- } else { ++ else + nBytes = inode->i_size & (PAGE_CACHE_SIZE - 1); +- } + + get_page(page); + +@@ -643,19 +707,18 @@ static int yaffs_writepage(struct page * + yaffs_GrossLock(obj->myDev); + + T(YAFFS_TRACE_OS, +- (KERN_DEBUG "yaffs_writepage at %08x, size %08x\n", +- (unsigned)(page->index << PAGE_CACHE_SHIFT), nBytes)); ++ ("yaffs_writepage at %08x, size %08x\n", ++ (unsigned)(page->index << PAGE_CACHE_SHIFT), nBytes)); + T(YAFFS_TRACE_OS, +- (KERN_DEBUG "writepag0: obj = %05x, ino = %05x\n", +- (int)obj->variant.fileVariant.fileSize, (int)inode->i_size)); ++ ("writepag0: obj = %05x, ino = %05x\n", ++ (int)obj->variant.fileVariant.fileSize, (int)inode->i_size)); + +- nWritten = +- yaffs_WriteDataToFile(obj, buffer, page->index << PAGE_CACHE_SHIFT, +- nBytes, 0); ++ nWritten = yaffs_WriteDataToFile(obj, buffer, ++ page->index << PAGE_CACHE_SHIFT, nBytes, 0); + + T(YAFFS_TRACE_OS, +- (KERN_DEBUG "writepag1: obj = %05x, ino = %05x\n", +- (int)obj->variant.fileVariant.fileSize, (int)inode->i_size)); ++ ("writepag1: obj = %05x, ino = %05x\n", ++ (int)obj->variant.fileVariant.fileSize, (int)inode->i_size)); + + yaffs_GrossUnlock(obj->myDev); + +@@ -667,100 +730,207 @@ static int yaffs_writepage(struct page * + return (nWritten == nBytes) ? 0 : -ENOSPC; + } + ++ ++#if (YAFFS_USE_WRITE_BEGIN_END > 0) ++static int yaffs_write_begin(struct file *filp, struct address_space *mapping, ++ loff_t pos, unsigned len, unsigned flags, ++ struct page **pagep, void **fsdata) ++{ ++ struct page *pg = NULL; ++ pgoff_t index = pos >> PAGE_CACHE_SHIFT; ++ uint32_t offset = pos & (PAGE_CACHE_SIZE - 1); ++ uint32_t to = offset + len; ++ ++ int ret = 0; ++ int space_held = 0; ++ ++ T(YAFFS_TRACE_OS, ("start yaffs_write_begin\n")); ++ /* Get a page */ ++#if LINUX_VERSION_CODE > KERNEL_VERSION(2, 6, 28) ++ pg = grab_cache_page_write_begin(mapping, index, flags); ++#else ++ pg = __grab_cache_page(mapping, index); ++#endif ++ ++ *pagep = pg; ++ if (!pg) { ++ ret = -ENOMEM; ++ goto out; ++ } ++ /* Get fs space */ ++ space_held = yaffs_hold_space(filp); ++ ++ if (!space_held) { ++ ret = -ENOSPC; ++ goto out; ++ } ++ ++ /* Update page if required */ ++ ++ if (!Page_Uptodate(pg) && (offset || to < PAGE_CACHE_SIZE)) ++ ret = yaffs_readpage_nolock(filp, pg); ++ ++ if (ret) ++ goto out; ++ ++ /* Happy path return */ ++ T(YAFFS_TRACE_OS, ("end yaffs_write_begin - ok\n")); ++ ++ return 0; ++ ++out: ++ T(YAFFS_TRACE_OS, ("end yaffs_write_begin fail returning %d\n", ret)); ++ if (space_held) ++ yaffs_release_space(filp); ++ if (pg) { ++ unlock_page(pg); ++ page_cache_release(pg); ++ } ++ return ret; ++} ++ ++#else ++ + static int yaffs_prepare_write(struct file *f, struct page *pg, +- unsigned offset, unsigned to) ++ unsigned offset, unsigned to) + { ++ T(YAFFS_TRACE_OS, ("yaffs_prepair_write\n")); + +- T(YAFFS_TRACE_OS, (KERN_DEBUG "yaffs_prepair_write\n")); + if (!Page_Uptodate(pg) && (offset || to < PAGE_CACHE_SIZE)) + return yaffs_readpage_nolock(f, pg); +- + return 0; ++} ++#endif ++ ++#if (YAFFS_USE_WRITE_BEGIN_END > 0) ++static int yaffs_write_end(struct file *filp, struct address_space *mapping, ++ loff_t pos, unsigned len, unsigned copied, ++ struct page *pg, void *fsdadata) ++{ ++ int ret = 0; ++ void *addr, *kva; ++ uint32_t offset_into_page = pos & (PAGE_CACHE_SIZE - 1); ++ ++ kva = kmap(pg); ++ addr = kva + offset_into_page; ++ ++ T(YAFFS_TRACE_OS, ++ ("yaffs_write_end addr %x pos %x nBytes %d\n", ++ (unsigned) addr, ++ (int)pos, copied)); ++ ++ ret = yaffs_file_write(filp, addr, copied, &pos); ++ ++ if (ret != copied) { ++ T(YAFFS_TRACE_OS, ++ ("yaffs_write_end not same size ret %d copied %d\n", ++ ret, copied)); ++ SetPageError(pg); ++ ClearPageUptodate(pg); ++ } else { ++ SetPageUptodate(pg); ++ } ++ ++ kunmap(pg); + ++ yaffs_release_space(filp); ++ unlock_page(pg); ++ page_cache_release(pg); ++ return ret; + } ++#else + + static int yaffs_commit_write(struct file *f, struct page *pg, unsigned offset, +- unsigned to) ++ unsigned to) + { ++ void *addr, *kva; + +- void *addr = page_address(pg) + offset; + loff_t pos = (((loff_t) pg->index) << PAGE_CACHE_SHIFT) + offset; + int nBytes = to - offset; + int nWritten; + + unsigned spos = pos; +- unsigned saddr = (unsigned)addr; ++ unsigned saddr; ++ ++ kva = kmap(pg); ++ addr = kva + offset; ++ ++ saddr = (unsigned) addr; + + T(YAFFS_TRACE_OS, +- (KERN_DEBUG "yaffs_commit_write addr %x pos %x nBytes %d\n", saddr, +- spos, nBytes)); ++ ("yaffs_commit_write addr %x pos %x nBytes %d\n", ++ saddr, spos, nBytes)); + + nWritten = yaffs_file_write(f, addr, nBytes, &pos); + + if (nWritten != nBytes) { + T(YAFFS_TRACE_OS, +- (KERN_DEBUG +- "yaffs_commit_write not same size nWritten %d nBytes %d\n", +- nWritten, nBytes)); ++ ("yaffs_commit_write not same size nWritten %d nBytes %d\n", ++ nWritten, nBytes)); + SetPageError(pg); + ClearPageUptodate(pg); + } else { + SetPageUptodate(pg); + } + ++ kunmap(pg); ++ + T(YAFFS_TRACE_OS, +- (KERN_DEBUG "yaffs_commit_write returning %d\n", +- nWritten == nBytes ? 0 : nWritten)); ++ ("yaffs_commit_write returning %d\n", ++ nWritten == nBytes ? 0 : nWritten)); + + return nWritten == nBytes ? 0 : nWritten; +- + } ++#endif ++ + +-static void yaffs_FillInodeFromObject(struct inode *inode, yaffs_Object * obj) ++static void yaffs_FillInodeFromObject(struct inode *inode, yaffs_Object *obj) + { + if (inode && obj) { + + + /* Check mode against the variant type and attempt to repair if broken. */ +- __u32 mode = obj->yst_mode; +- switch( obj->variantType ){ +- case YAFFS_OBJECT_TYPE_FILE : +- if( ! S_ISREG(mode) ){ +- obj->yst_mode &= ~S_IFMT; +- obj->yst_mode |= S_IFREG; +- } +- +- break; +- case YAFFS_OBJECT_TYPE_SYMLINK : +- if( ! S_ISLNK(mode) ){ +- obj->yst_mode &= ~S_IFMT; +- obj->yst_mode |= S_IFLNK; +- } +- +- break; +- case YAFFS_OBJECT_TYPE_DIRECTORY : +- if( ! S_ISDIR(mode) ){ +- obj->yst_mode &= ~S_IFMT; +- obj->yst_mode |= S_IFDIR; +- } +- +- break; +- case YAFFS_OBJECT_TYPE_UNKNOWN : +- case YAFFS_OBJECT_TYPE_HARDLINK : +- case YAFFS_OBJECT_TYPE_SPECIAL : +- default: +- /* TODO? */ +- break; +- } ++ __u32 mode = obj->yst_mode; ++ switch (obj->variantType) { ++ case YAFFS_OBJECT_TYPE_FILE: ++ if (!S_ISREG(mode)) { ++ obj->yst_mode &= ~S_IFMT; ++ obj->yst_mode |= S_IFREG; ++ } ++ ++ break; ++ case YAFFS_OBJECT_TYPE_SYMLINK: ++ if (!S_ISLNK(mode)) { ++ obj->yst_mode &= ~S_IFMT; ++ obj->yst_mode |= S_IFLNK; ++ } ++ ++ break; ++ case YAFFS_OBJECT_TYPE_DIRECTORY: ++ if (!S_ISDIR(mode)) { ++ obj->yst_mode &= ~S_IFMT; ++ obj->yst_mode |= S_IFDIR; ++ } ++ ++ break; ++ case YAFFS_OBJECT_TYPE_UNKNOWN: ++ case YAFFS_OBJECT_TYPE_HARDLINK: ++ case YAFFS_OBJECT_TYPE_SPECIAL: ++ default: ++ /* TODO? */ ++ break; ++ } ++ ++ inode->i_flags |= S_NOATIME; + + inode->i_ino = obj->objectId; + inode->i_mode = obj->yst_mode; + inode->i_uid = obj->yst_uid; + inode->i_gid = obj->yst_gid; +-#if (LINUX_VERSION_CODE < KERNEL_VERSION(2,6,19)) ++#if (LINUX_VERSION_CODE < KERNEL_VERSION(2, 6, 19)) + inode->i_blksize = inode->i_sb->s_blocksize; + #endif +-#if (LINUX_VERSION_CODE > KERNEL_VERSION(2,5,0)) ++#if (LINUX_VERSION_CODE > KERNEL_VERSION(2, 5, 0)) + + inode->i_rdev = old_decode_dev(obj->yst_rdev); + inode->i_atime.tv_sec = (time_t) (obj->yst_atime); +@@ -781,26 +951,25 @@ static void yaffs_FillInodeFromObject(st + inode->i_nlink = yaffs_GetObjectLinkCount(obj); + + T(YAFFS_TRACE_OS, +- (KERN_DEBUG +- "yaffs_FillInode mode %x uid %d gid %d size %d count %d\n", +- inode->i_mode, inode->i_uid, inode->i_gid, +- (int)inode->i_size, atomic_read(&inode->i_count))); ++ ("yaffs_FillInode mode %x uid %d gid %d size %d count %d\n", ++ inode->i_mode, inode->i_uid, inode->i_gid, ++ (int)inode->i_size, atomic_read(&inode->i_count))); + + switch (obj->yst_mode & S_IFMT) { + default: /* fifo, device or socket */ +-#if (LINUX_VERSION_CODE > KERNEL_VERSION(2,5,0)) ++#if (LINUX_VERSION_CODE > KERNEL_VERSION(2, 5, 0)) + init_special_inode(inode, obj->yst_mode, +- old_decode_dev(obj->yst_rdev)); ++ old_decode_dev(obj->yst_rdev)); + #else + init_special_inode(inode, obj->yst_mode, +- (dev_t) (obj->yst_rdev)); ++ (dev_t) (obj->yst_rdev)); + #endif + break; + case S_IFREG: /* file */ + inode->i_op = &yaffs_file_inode_operations; + inode->i_fop = &yaffs_file_operations; + inode->i_mapping->a_ops = +- &yaffs_file_address_operations; ++ &yaffs_file_address_operations; + break; + case S_IFDIR: /* directory */ + inode->i_op = &yaffs_dir_inode_operations; +@@ -817,34 +986,36 @@ static void yaffs_FillInodeFromObject(st + + } else { + T(YAFFS_TRACE_OS, +- (KERN_DEBUG "yaffs_FileInode invalid parameters\n")); ++ ("yaffs_FileInode invalid parameters\n")); + } + + } + + struct inode *yaffs_get_inode(struct super_block *sb, int mode, int dev, +- yaffs_Object * obj) ++ yaffs_Object *obj) + { + struct inode *inode; + + if (!sb) { + T(YAFFS_TRACE_OS, +- (KERN_DEBUG "yaffs_get_inode for NULL super_block!!\n")); ++ ("yaffs_get_inode for NULL super_block!!\n")); + return NULL; + + } + + if (!obj) { + T(YAFFS_TRACE_OS, +- (KERN_DEBUG "yaffs_get_inode for NULL object!!\n")); ++ ("yaffs_get_inode for NULL object!!\n")); + return NULL; + + } + + T(YAFFS_TRACE_OS, +- (KERN_DEBUG "yaffs_get_inode for object %d\n", obj->objectId)); ++ ("yaffs_get_inode for object %d\n", obj->objectId)); + +- inode = iget(sb, obj->objectId); ++ inode = Y_IGET(sb, obj->objectId); ++ if (IS_ERR(inode)) ++ return NULL; + + /* NB Side effect: iget calls back to yaffs_read_inode(). */ + /* iget also increments the inode's i_count */ +@@ -854,7 +1025,7 @@ struct inode *yaffs_get_inode(struct sup + } + + static ssize_t yaffs_file_write(struct file *f, const char *buf, size_t n, +- loff_t * pos) ++ loff_t *pos) + { + yaffs_Object *obj; + int nWritten, ipos; +@@ -869,28 +1040,26 @@ static ssize_t yaffs_file_write(struct f + + inode = f->f_dentry->d_inode; + +- if (!S_ISBLK(inode->i_mode) && f->f_flags & O_APPEND) { ++ if (!S_ISBLK(inode->i_mode) && f->f_flags & O_APPEND) + ipos = inode->i_size; +- } else { ++ else + ipos = *pos; +- } + +- if (!obj) { ++ if (!obj) + T(YAFFS_TRACE_OS, +- (KERN_DEBUG "yaffs_file_write: hey obj is null!\n")); +- } else { ++ ("yaffs_file_write: hey obj is null!\n")); ++ else + T(YAFFS_TRACE_OS, +- (KERN_DEBUG +- "yaffs_file_write about to write writing %d bytes" +- "to object %d at %d\n", +- n, obj->objectId, ipos)); +- } ++ ("yaffs_file_write about to write writing %zu bytes" ++ "to object %d at %d\n", ++ n, obj->objectId, ipos)); + + nWritten = yaffs_WriteDataToFile(obj, buf, ipos, n, 0); + + T(YAFFS_TRACE_OS, +- (KERN_DEBUG "yaffs_file_write writing %d bytes, %d written at %d\n", +- n, nWritten, ipos)); ++ ("yaffs_file_write writing %zu bytes, %d written at %d\n", ++ n, nWritten, ipos)); ++ + if (nWritten > 0) { + ipos += nWritten; + *pos = ipos; +@@ -899,10 +1068,9 @@ static ssize_t yaffs_file_write(struct f + inode->i_blocks = (ipos + 511) >> 9; + + T(YAFFS_TRACE_OS, +- (KERN_DEBUG +- "yaffs_file_write size updated to %d bytes, " +- "%d blocks\n", +- ipos, (int)(inode->i_blocks))); ++ ("yaffs_file_write size updated to %d bytes, " ++ "%d blocks\n", ++ ipos, (int)(inode->i_blocks))); + } + + } +@@ -910,13 +1078,54 @@ static ssize_t yaffs_file_write(struct f + return nWritten == 0 ? -ENOSPC : nWritten; + } + ++/* Space holding and freeing is done to ensure we have space available for write_begin/end */ ++/* For now we just assume few parallel writes and check against a small number. */ ++/* Todo: need to do this with a counter to handle parallel reads better */ ++ ++static ssize_t yaffs_hold_space(struct file *f) ++{ ++ yaffs_Object *obj; ++ yaffs_Device *dev; ++ ++ int nFreeChunks; ++ ++ ++ obj = yaffs_DentryToObject(f->f_dentry); ++ ++ dev = obj->myDev; ++ ++ yaffs_GrossLock(dev); ++ ++ nFreeChunks = yaffs_GetNumberOfFreeChunks(dev); ++ ++ yaffs_GrossUnlock(dev); ++ ++ return (nFreeChunks > 20) ? 1 : 0; ++} ++ ++static void yaffs_release_space(struct file *f) ++{ ++ yaffs_Object *obj; ++ yaffs_Device *dev; ++ ++ ++ obj = yaffs_DentryToObject(f->f_dentry); ++ ++ dev = obj->myDev; ++ ++ yaffs_GrossLock(dev); ++ ++ ++ yaffs_GrossUnlock(dev); ++} ++ + static int yaffs_readdir(struct file *f, void *dirent, filldir_t filldir) + { + yaffs_Object *obj; + yaffs_Device *dev; + struct inode *inode = f->f_dentry->d_inode; + unsigned long offset, curoffs; +- struct list_head *i; ++ struct ylist_head *i; + yaffs_Object *l; + + char name[YAFFS_MAX_NAME_LENGTH + 1]; +@@ -932,24 +1141,20 @@ static int yaffs_readdir(struct file *f, + + if (offset == 0) { + T(YAFFS_TRACE_OS, +- (KERN_DEBUG "yaffs_readdir: entry . ino %d \n", +- (int)inode->i_ino)); +- if (filldir(dirent, ".", 1, offset, inode->i_ino, DT_DIR) +- < 0) { ++ ("yaffs_readdir: entry . ino %d \n", ++ (int)inode->i_ino)); ++ if (filldir(dirent, ".", 1, offset, inode->i_ino, DT_DIR) < 0) + goto out; +- } + offset++; + f->f_pos++; + } + if (offset == 1) { + T(YAFFS_TRACE_OS, +- (KERN_DEBUG "yaffs_readdir: entry .. ino %d \n", +- (int)f->f_dentry->d_parent->d_inode->i_ino)); +- if (filldir +- (dirent, "..", 2, offset, +- f->f_dentry->d_parent->d_inode->i_ino, DT_DIR) < 0) { ++ ("yaffs_readdir: entry .. ino %d \n", ++ (int)f->f_dentry->d_parent->d_inode->i_ino)); ++ if (filldir(dirent, "..", 2, offset, ++ f->f_dentry->d_parent->d_inode->i_ino, DT_DIR) < 0) + goto out; +- } + offset++; + f->f_pos++; + } +@@ -965,35 +1170,32 @@ static int yaffs_readdir(struct file *f, + f->f_version = inode->i_version; + } + +- list_for_each(i, &obj->variant.directoryVariant.children) { ++ ylist_for_each(i, &obj->variant.directoryVariant.children) { + curoffs++; + if (curoffs >= offset) { +- l = list_entry(i, yaffs_Object, siblings); ++ l = ylist_entry(i, yaffs_Object, siblings); + + yaffs_GetObjectName(l, name, + YAFFS_MAX_NAME_LENGTH + 1); + T(YAFFS_TRACE_OS, +- (KERN_DEBUG "yaffs_readdir: %s inode %d\n", name, ++ ("yaffs_readdir: %s inode %d\n", name, + yaffs_GetObjectInode(l))); + + if (filldir(dirent, +- name, +- strlen(name), +- offset, +- yaffs_GetObjectInode(l), +- yaffs_GetObjectType(l)) +- < 0) { ++ name, ++ strlen(name), ++ offset, ++ yaffs_GetObjectInode(l), ++ yaffs_GetObjectType(l)) < 0) + goto up_and_out; +- } + + offset++; + f->f_pos++; + } + } + +- up_and_out: +- out: +- ++up_and_out: ++out: + yaffs_GrossUnlock(dev); + + return 0; +@@ -1002,12 +1204,19 @@ static int yaffs_readdir(struct file *f, + /* + * File creation. Allocate an inode, and we're done.. + */ +-#if (LINUX_VERSION_CODE > KERNEL_VERSION(2,5,0)) ++ ++#if LINUX_VERSION_CODE < KERNEL_VERSION(2, 6, 29) ++#define YCRED(x) x ++#else ++#define YCRED(x) (x->cred) ++#endif ++ ++#if (LINUX_VERSION_CODE > KERNEL_VERSION(2, 5, 0)) + static int yaffs_mknod(struct inode *dir, struct dentry *dentry, int mode, +- dev_t rdev) ++ dev_t rdev) + #else + static int yaffs_mknod(struct inode *dir, struct dentry *dentry, int mode, +- int rdev) ++ int rdev) + #endif + { + struct inode *inode; +@@ -1018,25 +1227,25 @@ static int yaffs_mknod(struct inode *dir + yaffs_Object *parent = yaffs_InodeToObject(dir); + + int error = -ENOSPC; +- uid_t uid = current->fsuid; +- gid_t gid = (dir->i_mode & S_ISGID) ? dir->i_gid : current->fsgid; ++ uid_t uid = YCRED(current)->fsuid; ++ gid_t gid = (dir->i_mode & S_ISGID) ? dir->i_gid : YCRED(current)->fsgid; + +- if((dir->i_mode & S_ISGID) && S_ISDIR(mode)) ++ if ((dir->i_mode & S_ISGID) && S_ISDIR(mode)) + mode |= S_ISGID; + + if (parent) { + T(YAFFS_TRACE_OS, +- (KERN_DEBUG "yaffs_mknod: parent object %d type %d\n", +- parent->objectId, parent->variantType)); ++ ("yaffs_mknod: parent object %d type %d\n", ++ parent->objectId, parent->variantType)); + } else { + T(YAFFS_TRACE_OS, +- (KERN_DEBUG "yaffs_mknod: could not get parent object\n")); ++ ("yaffs_mknod: could not get parent object\n")); + return -EPERM; + } + + T(YAFFS_TRACE_OS, ("yaffs_mknod: making oject for %s, " +- "mode %x dev %x\n", +- dentry->d_name.name, mode, rdev)); ++ "mode %x dev %x\n", ++ dentry->d_name.name, mode, rdev)); + + dev = parent->myDev; + +@@ -1045,33 +1254,28 @@ static int yaffs_mknod(struct inode *dir + switch (mode & S_IFMT) { + default: + /* Special (socket, fifo, device...) */ +- T(YAFFS_TRACE_OS, (KERN_DEBUG +- "yaffs_mknod: making special\n")); +-#if (LINUX_VERSION_CODE > KERNEL_VERSION(2,5,0)) +- obj = +- yaffs_MknodSpecial(parent, dentry->d_name.name, mode, uid, +- gid, old_encode_dev(rdev)); +-#else +- obj = +- yaffs_MknodSpecial(parent, dentry->d_name.name, mode, uid, +- gid, rdev); ++ T(YAFFS_TRACE_OS, ("yaffs_mknod: making special\n")); ++#if (LINUX_VERSION_CODE > KERNEL_VERSION(2, 5, 0)) ++ obj = yaffs_MknodSpecial(parent, dentry->d_name.name, mode, uid, ++ gid, old_encode_dev(rdev)); ++#else ++ obj = yaffs_MknodSpecial(parent, dentry->d_name.name, mode, uid, ++ gid, rdev); + #endif + break; + case S_IFREG: /* file */ +- T(YAFFS_TRACE_OS, (KERN_DEBUG "yaffs_mknod: making file\n")); +- obj = +- yaffs_MknodFile(parent, dentry->d_name.name, mode, uid, +- gid); ++ T(YAFFS_TRACE_OS, ("yaffs_mknod: making file\n")); ++ obj = yaffs_MknodFile(parent, dentry->d_name.name, mode, uid, ++ gid); + break; + case S_IFDIR: /* directory */ + T(YAFFS_TRACE_OS, +- (KERN_DEBUG "yaffs_mknod: making directory\n")); +- obj = +- yaffs_MknodDirectory(parent, dentry->d_name.name, mode, +- uid, gid); ++ ("yaffs_mknod: making directory\n")); ++ obj = yaffs_MknodDirectory(parent, dentry->d_name.name, mode, ++ uid, gid); + break; + case S_IFLNK: /* symlink */ +- T(YAFFS_TRACE_OS, (KERN_DEBUG "yaffs_mknod: making file\n")); ++ T(YAFFS_TRACE_OS, ("yaffs_mknod: making symlink\n")); + obj = NULL; /* Do we ever get here? */ + break; + } +@@ -1083,12 +1287,12 @@ static int yaffs_mknod(struct inode *dir + inode = yaffs_get_inode(dir->i_sb, mode, rdev, obj); + d_instantiate(dentry, inode); + T(YAFFS_TRACE_OS, +- (KERN_DEBUG "yaffs_mknod created object %d count = %d\n", +- obj->objectId, atomic_read(&inode->i_count))); ++ ("yaffs_mknod created object %d count = %d\n", ++ obj->objectId, atomic_read(&inode->i_count))); + error = 0; + } else { + T(YAFFS_TRACE_OS, +- (KERN_DEBUG "yaffs_mknod failed making object\n")); ++ ("yaffs_mknod failed making object\n")); + error = -ENOMEM; + } + +@@ -1098,25 +1302,19 @@ static int yaffs_mknod(struct inode *dir + static int yaffs_mkdir(struct inode *dir, struct dentry *dentry, int mode) + { + int retVal; +- T(YAFFS_TRACE_OS, (KERN_DEBUG "yaffs_mkdir\n")); ++ T(YAFFS_TRACE_OS, ("yaffs_mkdir\n")); + retVal = yaffs_mknod(dir, dentry, mode | S_IFDIR, 0); +-#if 0 +- /* attempt to fix dir bug - didn't work */ +- if (!retVal) { +- dget(dentry); +- } +-#endif + return retVal; + } + +-#if (LINUX_VERSION_CODE > KERNEL_VERSION(2,5,0)) ++#if (LINUX_VERSION_CODE > KERNEL_VERSION(2, 5, 0)) + static int yaffs_create(struct inode *dir, struct dentry *dentry, int mode, + struct nameidata *n) + #else + static int yaffs_create(struct inode *dir, struct dentry *dentry, int mode) + #endif + { +- T(YAFFS_TRACE_OS, (KERN_DEBUG "yaffs_create\n")); ++ T(YAFFS_TRACE_OS, ("yaffs_create\n")); + return yaffs_mknod(dir, dentry, mode | S_IFREG, 0); + } + +@@ -1127,8 +1325,8 @@ static int yaffs_unlink(struct inode *di + yaffs_Device *dev; + + T(YAFFS_TRACE_OS, +- (KERN_DEBUG "yaffs_unlink %d:%s\n", (int)(dir->i_ino), +- dentry->d_name.name)); ++ ("yaffs_unlink %d:%s\n", (int)(dir->i_ino), ++ dentry->d_name.name)); + + dev = yaffs_InodeToObject(dir)->myDev; + +@@ -1151,82 +1349,74 @@ static int yaffs_unlink(struct inode *di + * Create a link... + */ + static int yaffs_link(struct dentry *old_dentry, struct inode *dir, +- struct dentry *dentry) ++ struct dentry *dentry) + { + struct inode *inode = old_dentry->d_inode; + yaffs_Object *obj = NULL; + yaffs_Object *link = NULL; + yaffs_Device *dev; + +- T(YAFFS_TRACE_OS, (KERN_DEBUG "yaffs_link\n")); ++ T(YAFFS_TRACE_OS, ("yaffs_link\n")); + + obj = yaffs_InodeToObject(inode); + dev = obj->myDev; + + yaffs_GrossLock(dev); + +- if (!S_ISDIR(inode->i_mode)) /* Don't link directories */ +- { +- link = +- yaffs_Link(yaffs_InodeToObject(dir), dentry->d_name.name, +- obj); +- } ++ if (!S_ISDIR(inode->i_mode)) /* Don't link directories */ ++ link = yaffs_Link(yaffs_InodeToObject(dir), dentry->d_name.name, ++ obj); + + if (link) { + old_dentry->d_inode->i_nlink = yaffs_GetObjectLinkCount(obj); + d_instantiate(dentry, old_dentry->d_inode); + atomic_inc(&old_dentry->d_inode->i_count); + T(YAFFS_TRACE_OS, +- (KERN_DEBUG "yaffs_link link count %d i_count %d\n", +- old_dentry->d_inode->i_nlink, +- atomic_read(&old_dentry->d_inode->i_count))); +- ++ ("yaffs_link link count %d i_count %d\n", ++ old_dentry->d_inode->i_nlink, ++ atomic_read(&old_dentry->d_inode->i_count))); + } + + yaffs_GrossUnlock(dev); + +- if (link) { +- ++ if (link) + return 0; +- } + + return -EPERM; + } + + static int yaffs_symlink(struct inode *dir, struct dentry *dentry, +- const char *symname) ++ const char *symname) + { + yaffs_Object *obj; + yaffs_Device *dev; +- uid_t uid = current->fsuid; +- gid_t gid = (dir->i_mode & S_ISGID) ? dir->i_gid : current->fsgid; ++ uid_t uid = YCRED(current)->fsuid; ++ gid_t gid = (dir->i_mode & S_ISGID) ? dir->i_gid : YCRED(current)->fsgid; + +- T(YAFFS_TRACE_OS, (KERN_DEBUG "yaffs_symlink\n")); ++ T(YAFFS_TRACE_OS, ("yaffs_symlink\n")); + + dev = yaffs_InodeToObject(dir)->myDev; + yaffs_GrossLock(dev); + obj = yaffs_MknodSymLink(yaffs_InodeToObject(dir), dentry->d_name.name, +- S_IFLNK | S_IRWXUGO, uid, gid, symname); ++ S_IFLNK | S_IRWXUGO, uid, gid, symname); + yaffs_GrossUnlock(dev); + + if (obj) { +- + struct inode *inode; + + inode = yaffs_get_inode(dir->i_sb, obj->yst_mode, 0, obj); + d_instantiate(dentry, inode); +- T(YAFFS_TRACE_OS, (KERN_DEBUG "symlink created OK\n")); ++ T(YAFFS_TRACE_OS, ("symlink created OK\n")); + return 0; + } else { +- T(YAFFS_TRACE_OS, (KERN_DEBUG "symlink not created\n")); +- ++ T(YAFFS_TRACE_OS, ("symlink not created\n")); + } + + return -ENOMEM; + } + + static int yaffs_sync_object(struct file *file, struct dentry *dentry, +- int datasync) ++ int datasync) + { + + yaffs_Object *obj; +@@ -1236,7 +1426,7 @@ static int yaffs_sync_object(struct file + + dev = obj->myDev; + +- T(YAFFS_TRACE_OS, (KERN_DEBUG "yaffs_sync_object\n")); ++ T(YAFFS_TRACE_OS, ("yaffs_sync_object\n")); + yaffs_GrossLock(dev); + yaffs_FlushFile(obj, 1); + yaffs_GrossUnlock(dev); +@@ -1255,41 +1445,36 @@ static int yaffs_rename(struct inode *ol + int retVal = YAFFS_FAIL; + yaffs_Object *target; + +- T(YAFFS_TRACE_OS, (KERN_DEBUG "yaffs_rename\n")); ++ T(YAFFS_TRACE_OS, ("yaffs_rename\n")); + dev = yaffs_InodeToObject(old_dir)->myDev; + + yaffs_GrossLock(dev); + + /* Check if the target is an existing directory that is not empty. */ +- target = +- yaffs_FindObjectByName(yaffs_InodeToObject(new_dir), +- new_dentry->d_name.name); ++ target = yaffs_FindObjectByName(yaffs_InodeToObject(new_dir), ++ new_dentry->d_name.name); + + + +- if (target && +- target->variantType == YAFFS_OBJECT_TYPE_DIRECTORY && +- !list_empty(&target->variant.directoryVariant.children)) { ++ if (target && target->variantType == YAFFS_OBJECT_TYPE_DIRECTORY && ++ !ylist_empty(&target->variant.directoryVariant.children)) { + +- T(YAFFS_TRACE_OS, (KERN_DEBUG "target is non-empty dir\n")); ++ T(YAFFS_TRACE_OS, ("target is non-empty dir\n")); + + retVal = YAFFS_FAIL; + } else { +- + /* Now does unlinking internally using shadowing mechanism */ +- T(YAFFS_TRACE_OS, (KERN_DEBUG "calling yaffs_RenameObject\n")); +- +- retVal = +- yaffs_RenameObject(yaffs_InodeToObject(old_dir), +- old_dentry->d_name.name, +- yaffs_InodeToObject(new_dir), +- new_dentry->d_name.name); ++ T(YAFFS_TRACE_OS, ("calling yaffs_RenameObject\n")); + ++ retVal = yaffs_RenameObject(yaffs_InodeToObject(old_dir), ++ old_dentry->d_name.name, ++ yaffs_InodeToObject(new_dir), ++ new_dentry->d_name.name); + } + yaffs_GrossUnlock(dev); + + if (retVal == YAFFS_OK) { +- if(target) { ++ if (target) { + new_dentry->d_inode->i_nlink--; + mark_inode_dirty(new_dentry->d_inode); + } +@@ -1298,7 +1483,6 @@ static int yaffs_rename(struct inode *ol + } else { + return -ENOTEMPTY; + } +- + } + + static int yaffs_setattr(struct dentry *dentry, struct iattr *attr) +@@ -1308,15 +1492,15 @@ static int yaffs_setattr(struct dentry * + yaffs_Device *dev; + + T(YAFFS_TRACE_OS, +- (KERN_DEBUG "yaffs_setattr of object %d\n", +- yaffs_InodeToObject(inode)->objectId)); +- +- if ((error = inode_change_ok(inode, attr)) == 0) { ++ ("yaffs_setattr of object %d\n", ++ yaffs_InodeToObject(inode)->objectId)); + ++ error = inode_change_ok(inode, attr); ++ if (error == 0) { + dev = yaffs_InodeToObject(inode)->myDev; + yaffs_GrossLock(dev); + if (yaffs_SetAttributes(yaffs_InodeToObject(inode), attr) == +- YAFFS_OK) { ++ YAFFS_OK) { + error = 0; + } else { + error = -EPERM; +@@ -1328,12 +1512,12 @@ static int yaffs_setattr(struct dentry * + return error; + } + +-#if (LINUX_VERSION_CODE > KERNEL_VERSION(2,6,17)) ++#if (LINUX_VERSION_CODE > KERNEL_VERSION(2, 6, 17)) + static int yaffs_statfs(struct dentry *dentry, struct kstatfs *buf) + { + yaffs_Device *dev = yaffs_DentryToObject(dentry)->myDev; + struct super_block *sb = dentry->d_sb; +-#elif (LINUX_VERSION_CODE > KERNEL_VERSION(2,5,0)) ++#elif (LINUX_VERSION_CODE > KERNEL_VERSION(2, 5, 0)) + static int yaffs_statfs(struct super_block *sb, struct kstatfs *buf) + { + yaffs_Device *dev = yaffs_SuperToDevice(sb); +@@ -1343,32 +1527,53 @@ static int yaffs_statfs(struct super_blo + yaffs_Device *dev = yaffs_SuperToDevice(sb); + #endif + +- T(YAFFS_TRACE_OS, (KERN_DEBUG "yaffs_statfs\n")); ++ T(YAFFS_TRACE_OS, ("yaffs_statfs\n")); + + yaffs_GrossLock(dev); + + buf->f_type = YAFFS_MAGIC; + buf->f_bsize = sb->s_blocksize; + buf->f_namelen = 255; +- if (sb->s_blocksize > dev->nDataBytesPerChunk) { ++ ++ if (dev->nDataBytesPerChunk & (dev->nDataBytesPerChunk - 1)) { ++ /* Do this if chunk size is not a power of 2 */ ++ ++ uint64_t bytesInDev; ++ uint64_t bytesFree; ++ ++ bytesInDev = ((uint64_t)((dev->endBlock - dev->startBlock + 1))) * ++ ((uint64_t)(dev->nChunksPerBlock * dev->nDataBytesPerChunk)); ++ ++ do_div(bytesInDev, sb->s_blocksize); /* bytesInDev becomes the number of blocks */ ++ buf->f_blocks = bytesInDev; ++ ++ bytesFree = ((uint64_t)(yaffs_GetNumberOfFreeChunks(dev))) * ++ ((uint64_t)(dev->nDataBytesPerChunk)); ++ ++ do_div(bytesFree, sb->s_blocksize); ++ ++ buf->f_bfree = bytesFree; ++ ++ } else if (sb->s_blocksize > dev->nDataBytesPerChunk) { + + buf->f_blocks = +- (dev->endBlock - dev->startBlock + +- 1) * dev->nChunksPerBlock / (sb->s_blocksize / +- dev->nDataBytesPerChunk); ++ (dev->endBlock - dev->startBlock + 1) * ++ dev->nChunksPerBlock / ++ (sb->s_blocksize / dev->nDataBytesPerChunk); + buf->f_bfree = +- yaffs_GetNumberOfFreeChunks(dev) / (sb->s_blocksize / +- dev->nDataBytesPerChunk); ++ yaffs_GetNumberOfFreeChunks(dev) / ++ (sb->s_blocksize / dev->nDataBytesPerChunk); + } else { +- + buf->f_blocks = +- (dev->endBlock - dev->startBlock + +- 1) * dev->nChunksPerBlock * (dev->nDataBytesPerChunk / +- sb->s_blocksize); ++ (dev->endBlock - dev->startBlock + 1) * ++ dev->nChunksPerBlock * ++ (dev->nDataBytesPerChunk / sb->s_blocksize); ++ + buf->f_bfree = +- yaffs_GetNumberOfFreeChunks(dev) * (dev->nDataBytesPerChunk / +- sb->s_blocksize); ++ yaffs_GetNumberOfFreeChunks(dev) * ++ (dev->nDataBytesPerChunk / sb->s_blocksize); + } ++ + buf->f_files = 0; + buf->f_ffree = 0; + buf->f_bavail = buf->f_bfree; +@@ -1378,18 +1583,19 @@ static int yaffs_statfs(struct super_blo + } + + +-/** + static int yaffs_do_sync_fs(struct super_block *sb) + { + + yaffs_Device *dev = yaffs_SuperToDevice(sb); +- T(YAFFS_TRACE_OS, (KERN_DEBUG "yaffs_do_sync_fs\n")); ++ T(YAFFS_TRACE_OS, ("yaffs_do_sync_fs\n")); + +- if(sb->s_dirt) { ++ if (sb->s_dirt) { + yaffs_GrossLock(dev); + +- if(dev) ++ if (dev) { ++ yaffs_FlushEntireDeviceCache(dev); + yaffs_CheckpointSave(dev); ++ } + + yaffs_GrossUnlock(dev); + +@@ -1397,35 +1603,73 @@ static int yaffs_do_sync_fs(struct super + } + return 0; + } +-**/ + +-#if (LINUX_VERSION_CODE > KERNEL_VERSION(2,6,17)) ++ ++#if (LINUX_VERSION_CODE > KERNEL_VERSION(2, 6, 17)) + static void yaffs_write_super(struct super_block *sb) + #else + static int yaffs_write_super(struct super_block *sb) + #endif + { + +- T(YAFFS_TRACE_OS, (KERN_DEBUG "yaffs_write_super\n")); +-#if (LINUX_VERSION_CODE < KERNEL_VERSION(2,6,18)) +- return 0; /* yaffs_do_sync_fs(sb);*/ ++ T(YAFFS_TRACE_OS, ("yaffs_write_super\n")); ++ if (yaffs_auto_checkpoint >= 2) ++ yaffs_do_sync_fs(sb); ++#if (LINUX_VERSION_CODE < KERNEL_VERSION(2, 6, 18)) ++ return 0; + #endif + } + + +-#if (LINUX_VERSION_CODE > KERNEL_VERSION(2,6,17)) ++#if (LINUX_VERSION_CODE > KERNEL_VERSION(2, 6, 17)) + static int yaffs_sync_fs(struct super_block *sb, int wait) + #else + static int yaffs_sync_fs(struct super_block *sb) + #endif + { ++ T(YAFFS_TRACE_OS, ("yaffs_sync_fs\n")); ++ ++ if (yaffs_auto_checkpoint >= 1) ++ yaffs_do_sync_fs(sb); ++ ++ return 0; ++} ++ ++#ifdef YAFFS_USE_OWN_IGET ++ ++static struct inode *yaffs_iget(struct super_block *sb, unsigned long ino) ++{ ++ struct inode *inode; ++ yaffs_Object *obj; ++ yaffs_Device *dev = yaffs_SuperToDevice(sb); ++ ++ T(YAFFS_TRACE_OS, ++ ("yaffs_iget for %lu\n", ino)); + +- T(YAFFS_TRACE_OS, (KERN_DEBUG "yaffs_sync_fs\n")); ++ inode = iget_locked(sb, ino); ++ if (!inode) ++ return ERR_PTR(-ENOMEM); ++ if (!(inode->i_state & I_NEW)) ++ return inode; ++ ++ /* NB This is called as a side effect of other functions, but ++ * we had to release the lock to prevent deadlocks, so ++ * need to lock again. ++ */ + +- return 0; /* yaffs_do_sync_fs(sb);*/ ++ yaffs_GrossLock(dev); + ++ obj = yaffs_FindObjectByNumber(dev, inode->i_ino); ++ ++ yaffs_FillInodeFromObject(inode, obj); ++ ++ yaffs_GrossUnlock(dev); ++ ++ unlock_new_inode(inode); ++ return inode; + } + ++#else + + static void yaffs_read_inode(struct inode *inode) + { +@@ -1438,7 +1682,7 @@ static void yaffs_read_inode(struct inod + yaffs_Device *dev = yaffs_SuperToDevice(inode->i_sb); + + T(YAFFS_TRACE_OS, +- (KERN_DEBUG "yaffs_read_inode for %d\n", (int)inode->i_ino)); ++ ("yaffs_read_inode for %d\n", (int)inode->i_ino)); + + yaffs_GrossLock(dev); + +@@ -1449,18 +1693,20 @@ static void yaffs_read_inode(struct inod + yaffs_GrossUnlock(dev); + } + +-static LIST_HEAD(yaffs_dev_list); ++#endif ++ ++static YLIST_HEAD(yaffs_dev_list); + +-#if 0 // not used ++#if 0 /* not used */ + static int yaffs_remount_fs(struct super_block *sb, int *flags, char *data) + { + yaffs_Device *dev = yaffs_SuperToDevice(sb); + +- if( *flags & MS_RDONLY ) { ++ if (*flags & MS_RDONLY) { + struct mtd_info *mtd = yaffs_SuperToDevice(sb)->genericDevice; + + T(YAFFS_TRACE_OS, +- (KERN_DEBUG "yaffs_remount_fs: %s: RO\n", dev->name )); ++ ("yaffs_remount_fs: %s: RO\n", dev->name)); + + yaffs_GrossLock(dev); + +@@ -1472,10 +1718,9 @@ static int yaffs_remount_fs(struct super + mtd->sync(mtd); + + yaffs_GrossUnlock(dev); +- } +- else { ++ } else { + T(YAFFS_TRACE_OS, +- (KERN_DEBUG "yaffs_remount_fs: %s: RW\n", dev->name )); ++ ("yaffs_remount_fs: %s: RW\n", dev->name)); + } + + return 0; +@@ -1486,7 +1731,7 @@ static void yaffs_put_super(struct super + { + yaffs_Device *dev = yaffs_SuperToDevice(sb); + +- T(YAFFS_TRACE_OS, (KERN_DEBUG "yaffs_put_super\n")); ++ T(YAFFS_TRACE_OS, ("yaffs_put_super\n")); + + yaffs_GrossLock(dev); + +@@ -1494,18 +1739,17 @@ static void yaffs_put_super(struct super + + yaffs_CheckpointSave(dev); + +- if (dev->putSuperFunc) { ++ if (dev->putSuperFunc) + dev->putSuperFunc(sb); +- } + + yaffs_Deinitialise(dev); + + yaffs_GrossUnlock(dev); + + /* we assume this is protected by lock_kernel() in mount/umount */ +- list_del(&dev->devList); ++ ylist_del(&dev->devList); + +- if(dev->spareBuffer){ ++ if (dev->spareBuffer) { + YFREE(dev->spareBuffer); + dev->spareBuffer = NULL; + } +@@ -1516,12 +1760,10 @@ static void yaffs_put_super(struct super + + static void yaffs_MTDPutSuper(struct super_block *sb) + { +- + struct mtd_info *mtd = yaffs_SuperToDevice(sb)->genericDevice; + +- if (mtd->sync) { ++ if (mtd->sync) + mtd->sync(mtd); +- } + + put_mtd_device(mtd); + } +@@ -1531,9 +1773,9 @@ static void yaffs_MarkSuperBlockDirty(vo + { + struct super_block *sb = (struct super_block *)vsb; + +- T(YAFFS_TRACE_OS, (KERN_DEBUG "yaffs_MarkSuperBlockDirty() sb = %p\n",sb)); +-// if(sb) +-// sb->s_dirt = 1; ++ T(YAFFS_TRACE_OS, ("yaffs_MarkSuperBlockDirty() sb = %p\n", sb)); ++ if (sb) ++ sb->s_dirt = 1; + } + + typedef struct { +@@ -1546,48 +1788,48 @@ typedef struct { + #define MAX_OPT_LEN 20 + static int yaffs_parse_options(yaffs_options *options, const char *options_str) + { +- char cur_opt[MAX_OPT_LEN+1]; ++ char cur_opt[MAX_OPT_LEN + 1]; + int p; + int error = 0; + + /* Parse through the options which is a comma seperated list */ + +- while(options_str && *options_str && !error){ +- memset(cur_opt,0,MAX_OPT_LEN+1); ++ while (options_str && *options_str && !error) { ++ memset(cur_opt, 0, MAX_OPT_LEN + 1); + p = 0; + +- while(*options_str && *options_str != ','){ +- if(p < MAX_OPT_LEN){ ++ while (*options_str && *options_str != ',') { ++ if (p < MAX_OPT_LEN) { + cur_opt[p] = *options_str; + p++; + } + options_str++; + } + +- if(!strcmp(cur_opt,"inband-tags")) ++ if (!strcmp(cur_opt, "inband-tags")) + options->inband_tags = 1; +- else if(!strcmp(cur_opt,"no-cache")) ++ else if (!strcmp(cur_opt, "no-cache")) + options->no_cache = 1; +- else if(!strcmp(cur_opt,"no-checkpoint-read")) ++ else if (!strcmp(cur_opt, "no-checkpoint-read")) + options->skip_checkpoint_read = 1; +- else if(!strcmp(cur_opt,"no-checkpoint-write")) ++ else if (!strcmp(cur_opt, "no-checkpoint-write")) + options->skip_checkpoint_write = 1; +- else if(!strcmp(cur_opt,"no-checkpoint")){ ++ else if (!strcmp(cur_opt, "no-checkpoint")) { + options->skip_checkpoint_read = 1; + options->skip_checkpoint_write = 1; + } else { +- printk(KERN_INFO "yaffs: Bad mount option \"%s\"\n",cur_opt); ++ printk(KERN_INFO "yaffs: Bad mount option \"%s\"\n", ++ cur_opt); + error = 1; + } +- + } + + return error; + } + + static struct super_block *yaffs_internal_read_super(int yaffsVersion, +- struct super_block *sb, +- void *data, int silent) ++ struct super_block *sb, ++ void *data, int silent) + { + int nBlocks; + struct inode *inode = NULL; +@@ -1602,6 +1844,7 @@ static struct super_block *yaffs_interna + + sb->s_magic = YAFFS_MAGIC; + sb->s_op = &yaffs_super_ops; ++ sb->s_flags |= MS_NOATIME; + + if (!sb) + printk(KERN_INFO "yaffs: sb is NULL\n"); +@@ -1614,14 +1857,14 @@ static struct super_block *yaffs_interna + sb->s_dev, + yaffs_devname(sb, devname_buf)); + +- if(!data_str) ++ if (!data_str) + data_str = ""; + +- printk(KERN_INFO "yaffs: passed flags \"%s\"\n",data_str); ++ printk(KERN_INFO "yaffs: passed flags \"%s\"\n", data_str); + +- memset(&options,0,sizeof(options)); ++ memset(&options, 0, sizeof(options)); + +- if(yaffs_parse_options(&options,data_str)){ ++ if (yaffs_parse_options(&options, data_str)) { + /* Option parsing failed */ + return NULL; + } +@@ -1645,9 +1888,9 @@ static struct super_block *yaffs_interna + yaffs_devname(sb, devname_buf))); + + /* Check it's an mtd device..... */ +- if (MAJOR(sb->s_dev) != MTD_BLOCK_MAJOR) { ++ if (MAJOR(sb->s_dev) != MTD_BLOCK_MAJOR) + return NULL; /* This isn't an mtd device */ +- } ++ + /* Get the device */ + mtd = get_mtd_device(NULL, MINOR(sb->s_dev)); + if (!mtd) { +@@ -1673,29 +1916,23 @@ static struct super_block *yaffs_interna + T(YAFFS_TRACE_OS, (" %s %d\n", WRITE_SIZE_STR, WRITE_SIZE(mtd))); + T(YAFFS_TRACE_OS, (" oobsize %d\n", mtd->oobsize)); + T(YAFFS_TRACE_OS, (" erasesize %d\n", mtd->erasesize)); +- T(YAFFS_TRACE_OS, (" size %d\n", mtd->size)); ++#if LINUX_VERSION_CODE < KERNEL_VERSION(2, 6, 29) ++ T(YAFFS_TRACE_OS, (" size %u\n", mtd->size)); ++#else ++ T(YAFFS_TRACE_OS, (" size %lld\n", mtd->size)); ++#endif + + #ifdef CONFIG_YAFFS_AUTO_YAFFS2 + +- if (yaffsVersion == 1 && +-#if (LINUX_VERSION_CODE > KERNEL_VERSION(2,6,17)) +- mtd->writesize >= 2048) { +-#else +- mtd->oobblock >= 2048) { +-#endif +- T(YAFFS_TRACE_ALWAYS,("yaffs: auto selecting yaffs2\n")); +- yaffsVersion = 2; ++ if (yaffsVersion == 1 && WRITE_SIZE(mtd) >= 2048) { ++ T(YAFFS_TRACE_ALWAYS, ("yaffs: auto selecting yaffs2\n")); ++ yaffsVersion = 2; + } + + /* Added NCB 26/5/2006 for completeness */ +- if (yaffsVersion == 2 && +-#if (LINUX_VERSION_CODE > KERNEL_VERSION(2,6,17)) +- mtd->writesize == 512) { +-#else +- mtd->oobblock == 512) { +-#endif +- T(YAFFS_TRACE_ALWAYS,("yaffs: auto selecting yaffs1\n")); +- yaffsVersion = 1; ++ if (yaffsVersion == 2 && !options.inband_tags && WRITE_SIZE(mtd) == 512) { ++ T(YAFFS_TRACE_ALWAYS, ("yaffs: auto selecting yaffs1\n")); ++ yaffsVersion = 1; + } + + #endif +@@ -1707,7 +1944,7 @@ static struct super_block *yaffs_interna + !mtd->block_markbad || + !mtd->read || + !mtd->write || +-#if (LINUX_VERSION_CODE > KERNEL_VERSION(2,6,17)) ++#if (LINUX_VERSION_CODE > KERNEL_VERSION(2, 6, 17)) + !mtd->read_oob || !mtd->write_oob) { + #else + !mtd->write_ecc || +@@ -1719,12 +1956,9 @@ static struct super_block *yaffs_interna + return NULL; + } + +-#if (LINUX_VERSION_CODE > KERNEL_VERSION(2,6,17)) +- if (mtd->writesize < YAFFS_MIN_YAFFS2_CHUNK_SIZE || +-#else +- if (mtd->oobblock < YAFFS_MIN_YAFFS2_CHUNK_SIZE || +-#endif +- mtd->oobsize < YAFFS_MIN_YAFFS2_SPARE_SIZE) { ++ if ((WRITE_SIZE(mtd) < YAFFS_MIN_YAFFS2_CHUNK_SIZE || ++ mtd->oobsize < YAFFS_MIN_YAFFS2_SPARE_SIZE) && ++ !options.inband_tags) { + T(YAFFS_TRACE_ALWAYS, + ("yaffs: MTD device does not have the " + "right page sizes\n")); +@@ -1735,7 +1969,7 @@ static struct super_block *yaffs_interna + if (!mtd->erase || + !mtd->read || + !mtd->write || +-#if (LINUX_VERSION_CODE > KERNEL_VERSION(2,6,17)) ++#if (LINUX_VERSION_CODE > KERNEL_VERSION(2, 6, 17)) + !mtd->read_oob || !mtd->write_oob) { + #else + !mtd->write_ecc || +@@ -1761,7 +1995,7 @@ static struct super_block *yaffs_interna + * Set the yaffs_Device up for mtd + */ + +-#if (LINUX_VERSION_CODE > KERNEL_VERSION(2,5,0)) ++#if (LINUX_VERSION_CODE > KERNEL_VERSION(2, 5, 0)) + sb->s_fs_info = dev = kmalloc(sizeof(yaffs_Device), GFP_KERNEL); + #else + sb->u.generic_sbp = dev = kmalloc(sizeof(yaffs_Device), GFP_KERNEL); +@@ -1780,13 +2014,15 @@ static struct super_block *yaffs_interna + + /* Set up the memory size parameters.... */ + +- nBlocks = mtd->size / (YAFFS_CHUNKS_PER_BLOCK * YAFFS_BYTES_PER_CHUNK); ++ nBlocks = YCALCBLOCKS(mtd->size, (YAFFS_CHUNKS_PER_BLOCK * YAFFS_BYTES_PER_CHUNK)); ++ + dev->startBlock = 0; + dev->endBlock = nBlocks - 1; + dev->nChunksPerBlock = YAFFS_CHUNKS_PER_BLOCK; +- dev->nDataBytesPerChunk = YAFFS_BYTES_PER_CHUNK; ++ dev->totalBytesPerChunk = YAFFS_BYTES_PER_CHUNK; + dev->nReservedBlocks = 5; + dev->nShortOpCaches = (options.no_cache) ? 0 : 10; ++ dev->inbandTags = options.inband_tags; + + /* ... and the functions. */ + if (yaffsVersion == 2) { +@@ -1798,20 +2034,19 @@ static struct super_block *yaffs_interna + dev->queryNANDBlock = nandmtd2_QueryNANDBlock; + dev->spareBuffer = YMALLOC(mtd->oobsize); + dev->isYaffs2 = 1; +-#if (LINUX_VERSION_CODE > KERNEL_VERSION(2,6,17)) +- dev->nDataBytesPerChunk = mtd->writesize; ++#if (LINUX_VERSION_CODE > KERNEL_VERSION(2, 6, 17)) ++ dev->totalBytesPerChunk = mtd->writesize; + dev->nChunksPerBlock = mtd->erasesize / mtd->writesize; + #else +- dev->nDataBytesPerChunk = mtd->oobblock; ++ dev->totalBytesPerChunk = mtd->oobblock; + dev->nChunksPerBlock = mtd->erasesize / mtd->oobblock; + #endif +- nBlocks = mtd->size / mtd->erasesize; ++ nBlocks = YCALCBLOCKS(mtd->size, mtd->erasesize); + +- dev->nCheckpointReservedBlocks = CONFIG_YAFFS_CHECKPOINT_RESERVED_BLOCKS; + dev->startBlock = 0; + dev->endBlock = nBlocks - 1; + } else { +-#if (LINUX_VERSION_CODE > KERNEL_VERSION(2,6,17)) ++#if (LINUX_VERSION_CODE > KERNEL_VERSION(2, 6, 17)) + /* use the MTD interface in yaffs_mtdif1.c */ + dev->writeChunkWithTagsToNAND = + nandmtd1_WriteChunkWithTagsToNAND; +@@ -1847,7 +2082,7 @@ static struct super_block *yaffs_interna + dev->skipCheckpointWrite = options.skip_checkpoint_write; + + /* we assume this is protected by lock_kernel() in mount/umount */ +- list_add_tail(&dev->devList, &yaffs_dev_list); ++ ylist_add_tail(&dev->devList, &yaffs_dev_list); + + init_MUTEX(&dev->grossLock); + +@@ -1884,20 +2119,23 @@ static struct super_block *yaffs_interna + return NULL; + } + sb->s_root = root; ++ sb->s_dirt = !dev->isCheckpointed; ++ T(YAFFS_TRACE_ALWAYS, ++ ("yaffs_read_super: isCheckpointed %d\n", dev->isCheckpointed)); + + T(YAFFS_TRACE_OS, ("yaffs_read_super: done\n")); + return sb; + } + + +-#if (LINUX_VERSION_CODE > KERNEL_VERSION(2,5,0)) ++#if (LINUX_VERSION_CODE > KERNEL_VERSION(2, 5, 0)) + static int yaffs_internal_read_super_mtd(struct super_block *sb, void *data, + int silent) + { + return yaffs_internal_read_super(1, sb, data, silent) ? 0 : -EINVAL; + } + +-#if (LINUX_VERSION_CODE > KERNEL_VERSION(2,6,17)) ++#if (LINUX_VERSION_CODE > KERNEL_VERSION(2, 6, 17)) + static int yaffs_read_super(struct file_system_type *fs, + int flags, const char *dev_name, + void *data, struct vfsmount *mnt) +@@ -1938,14 +2176,14 @@ static DECLARE_FSTYPE(yaffs_fs_type, "ya + + #ifdef CONFIG_YAFFS_YAFFS2 + +-#if (LINUX_VERSION_CODE > KERNEL_VERSION(2,5,0)) ++#if (LINUX_VERSION_CODE > KERNEL_VERSION(2, 5, 0)) + static int yaffs2_internal_read_super_mtd(struct super_block *sb, void *data, + int silent) + { + return yaffs_internal_read_super(2, sb, data, silent) ? 0 : -EINVAL; + } + +-#if (LINUX_VERSION_CODE > KERNEL_VERSION(2,6,17)) ++#if (LINUX_VERSION_CODE > KERNEL_VERSION(2, 6, 17)) + static int yaffs2_read_super(struct file_system_type *fs, + int flags, const char *dev_name, void *data, + struct vfsmount *mnt) +@@ -1990,12 +2228,12 @@ static char *yaffs_dump_dev(char *buf, y + { + buf += sprintf(buf, "startBlock......... %d\n", dev->startBlock); + buf += sprintf(buf, "endBlock........... %d\n", dev->endBlock); ++ buf += sprintf(buf, "totalBytesPerChunk. %d\n", dev->totalBytesPerChunk); + buf += sprintf(buf, "nDataBytesPerChunk. %d\n", dev->nDataBytesPerChunk); + buf += sprintf(buf, "chunkGroupBits..... %d\n", dev->chunkGroupBits); + buf += sprintf(buf, "chunkGroupSize..... %d\n", dev->chunkGroupSize); + buf += sprintf(buf, "nErasedBlocks...... %d\n", dev->nErasedBlocks); + buf += sprintf(buf, "nReservedBlocks.... %d\n", dev->nReservedBlocks); +- buf += sprintf(buf, "nCheckptResBlocks.. %d\n", dev->nCheckpointReservedBlocks); + buf += sprintf(buf, "blocksInCheckpoint. %d\n", dev->blocksInCheckpoint); + buf += sprintf(buf, "nTnodesCreated..... %d\n", dev->nTnodesCreated); + buf += sprintf(buf, "nFreeTnodes........ %d\n", dev->nFreeTnodes); +@@ -2006,10 +2244,8 @@ static char *yaffs_dump_dev(char *buf, y + buf += sprintf(buf, "nPageReads......... %d\n", dev->nPageReads); + buf += sprintf(buf, "nBlockErasures..... %d\n", dev->nBlockErasures); + buf += sprintf(buf, "nGCCopies.......... %d\n", dev->nGCCopies); +- buf += +- sprintf(buf, "garbageCollections. %d\n", dev->garbageCollections); +- buf += +- sprintf(buf, "passiveGCs......... %d\n", ++ buf += sprintf(buf, "garbageCollections. %d\n", dev->garbageCollections); ++ buf += sprintf(buf, "passiveGCs......... %d\n", + dev->passiveGarbageCollections); + buf += sprintf(buf, "nRetriedWrites..... %d\n", dev->nRetriedWrites); + buf += sprintf(buf, "nShortOpCaches..... %d\n", dev->nShortOpCaches); +@@ -2025,6 +2261,7 @@ static char *yaffs_dump_dev(char *buf, y + sprintf(buf, "nBackgroudDeletions %d\n", dev->nBackgroundDeletions); + buf += sprintf(buf, "useNANDECC......... %d\n", dev->useNANDECC); + buf += sprintf(buf, "isYaffs2........... %d\n", dev->isYaffs2); ++ buf += sprintf(buf, "inbandTags......... %d\n", dev->inbandTags); + + return buf; + } +@@ -2033,7 +2270,7 @@ static int yaffs_proc_read(char *page, + char **start, + off_t offset, int count, int *eof, void *data) + { +- struct list_head *item; ++ struct ylist_head *item; + char *buf = page; + int step = offset; + int n = 0; +@@ -2057,8 +2294,8 @@ static int yaffs_proc_read(char *page, + lock_kernel(); + + /* Locate and print the Nth entry. Order N-squared but N is small. */ +- list_for_each(item, &yaffs_dev_list) { +- yaffs_Device *dev = list_entry(item, yaffs_Device, devList); ++ ylist_for_each(item, &yaffs_dev_list) { ++ yaffs_Device *dev = ylist_entry(item, yaffs_Device, devList); + if (n < step) { + n++; + continue; +@@ -2119,7 +2356,7 @@ static int yaffs_proc_write(struct file + char *end; + char *mask_name; + const char *x; +- char substring[MAX_MASK_NAME_LENGTH+1]; ++ char substring[MAX_MASK_NAME_LENGTH + 1]; + int i; + int done = 0; + int add, len = 0; +@@ -2129,9 +2366,8 @@ static int yaffs_proc_write(struct file + + while (!done && (pos < count)) { + done = 1; +- while ((pos < count) && isspace(buf[pos])) { ++ while ((pos < count) && isspace(buf[pos])) + pos++; +- } + + switch (buf[pos]) { + case '+': +@@ -2148,20 +2384,21 @@ static int yaffs_proc_write(struct file + mask_name = NULL; + + mask_bitfield = simple_strtoul(buf + pos, &end, 0); ++ + if (end > buf + pos) { + mask_name = "numeral"; + len = end - (buf + pos); + pos += len; + done = 0; + } else { +- for(x = buf + pos, i = 0; +- (*x == '_' || (*x >='a' && *x <= 'z')) && +- i = 'a' && *x <= 'z')) && ++ i < MAX_MASK_NAME_LENGTH; x++, i++, pos++) ++ substring[i] = *x; + substring[i] = '\0'; + + for (i = 0; mask_flags[i].mask_name != NULL; i++) { +- if(strcmp(substring,mask_flags[i].mask_name) == 0){ ++ if (strcmp(substring, mask_flags[i].mask_name) == 0) { + mask_name = mask_flags[i].mask_name; + mask_bitfield = mask_flags[i].mask_bitfield; + done = 0; +@@ -2172,7 +2409,7 @@ static int yaffs_proc_write(struct file + + if (mask_name != NULL) { + done = 0; +- switch(add) { ++ switch (add) { + case '-': + rg &= ~mask_bitfield; + break; +@@ -2191,13 +2428,13 @@ static int yaffs_proc_write(struct file + + yaffs_traceMask = rg | YAFFS_TRACE_ALWAYS; + +- printk("new trace = 0x%08X\n",yaffs_traceMask); ++ printk(KERN_DEBUG "new trace = 0x%08X\n", yaffs_traceMask); + + if (rg & YAFFS_TRACE_ALWAYS) { + for (i = 0; mask_flags[i].mask_name != NULL; i++) { + char flag; + flag = ((rg & mask_flags[i].mask_bitfield) == mask_flags[i].mask_bitfield) ? '+' : '-'; +- printk("%c%s\n", flag, mask_flags[i].mask_name); ++ printk(KERN_DEBUG "%c%s\n", flag, mask_flags[i].mask_name); + } + } + +@@ -2211,12 +2448,8 @@ struct file_system_to_install { + }; + + static struct file_system_to_install fs_to_install[] = { +-//#ifdef CONFIG_YAFFS_YAFFS1 + {&yaffs_fs_type, 0}, +-//#endif +-//#ifdef CONFIG_YAFFS_YAFFS2 + {&yaffs2_fs_type, 0}, +-//#endif + {NULL, 0} + }; + +@@ -2231,15 +2464,14 @@ static int __init init_yaffs_fs(void) + /* Install the proc_fs entry */ + my_proc_entry = create_proc_entry("yaffs", + S_IRUGO | S_IFREG, +- &proc_root); ++ YPROC_ROOT); + + if (my_proc_entry) { + my_proc_entry->write_proc = yaffs_proc_write; + my_proc_entry->read_proc = yaffs_proc_read; + my_proc_entry->data = NULL; +- } else { ++ } else + return -ENOMEM; +- } + + /* Now add the file system entries */ + +@@ -2247,9 +2479,8 @@ static int __init init_yaffs_fs(void) + + while (fsinst->fst && !error) { + error = register_filesystem(fsinst->fst); +- if (!error) { ++ if (!error) + fsinst->installed = 1; +- } + fsinst++; + } + +@@ -2277,7 +2508,7 @@ static void __exit exit_yaffs_fs(void) + T(YAFFS_TRACE_ALWAYS, ("yaffs " __DATE__ " " __TIME__ + " removing. \n")); + +- remove_proc_entry("yaffs", &proc_root); ++ remove_proc_entry("yaffs", YPROC_ROOT); + + fsinst = fs_to_install; + +@@ -2288,7 +2519,6 @@ static void __exit exit_yaffs_fs(void) + } + fsinst++; + } +- + } + + module_init(init_yaffs_fs) +--- /dev/null ++++ b/fs/yaffs2/yaffs_getblockinfo.h +@@ -0,0 +1,34 @@ ++/* ++ * YAFFS: Yet another Flash File System . A NAND-flash specific file system. ++ * ++ * Copyright (C) 2002-2007 Aleph One Ltd. ++ * for Toby Churchill Ltd and Brightstar Engineering ++ * ++ * Created by Charles Manning ++ * ++ * This program is free software; you can redistribute it and/or modify ++ * it under the terms of the GNU Lesser General Public License version 2.1 as ++ * published by the Free Software Foundation. ++ * ++ * Note: Only YAFFS headers are LGPL, YAFFS C code is covered by GPL. ++ */ ++ ++#ifndef __YAFFS_GETBLOCKINFO_H__ ++#define __YAFFS_GETBLOCKINFO_H__ ++ ++#include "yaffs_guts.h" ++ ++/* Function to manipulate block info */ ++static Y_INLINE yaffs_BlockInfo *yaffs_GetBlockInfo(yaffs_Device * dev, int blk) ++{ ++ if (blk < dev->internalStartBlock || blk > dev->internalEndBlock) { ++ T(YAFFS_TRACE_ERROR, ++ (TSTR ++ ("**>> yaffs: getBlockInfo block %d is not valid" TENDSTR), ++ blk)); ++ YBUG(); ++ } ++ return &dev->blockInfo[blk - dev->internalStartBlock]; ++} ++ ++#endif +--- a/fs/yaffs2/yaffs_guts.c ++++ b/fs/yaffs2/yaffs_guts.c +@@ -12,16 +12,17 @@ + */ + + const char *yaffs_guts_c_version = +- "$Id: yaffs_guts.c,v 1.49 2007-05-15 20:07:40 charles Exp $"; ++ "$Id: yaffs_guts.c,v 1.82 2009-03-09 04:24:17 charles Exp $"; + + #include "yportenv.h" + + #include "yaffsinterface.h" + #include "yaffs_guts.h" + #include "yaffs_tagsvalidity.h" ++#include "yaffs_getblockinfo.h" + + #include "yaffs_tagscompat.h" +-#ifndef CONFIG_YAFFS_USE_OWN_SORT ++#ifndef CONFIG_YAFFS_USE_OWN_SORT + #include "yaffs_qsort.h" + #endif + #include "yaffs_nand.h" +@@ -32,116 +33,116 @@ const char *yaffs_guts_c_version = + #include "yaffs_packedtags2.h" + + +-#ifdef CONFIG_YAFFS_WINCE +-void yfsd_LockYAFFS(BOOL fsLockOnly); +-void yfsd_UnlockYAFFS(BOOL fsLockOnly); +-#endif +- + #define YAFFS_PASSIVE_GC_CHUNKS 2 + + #include "yaffs_ecc.h" + + + /* Robustification (if it ever comes about...) */ +-static void yaffs_RetireBlock(yaffs_Device * dev, int blockInNAND); +-static void yaffs_HandleWriteChunkError(yaffs_Device * dev, int chunkInNAND, int erasedOk); +-static void yaffs_HandleWriteChunkOk(yaffs_Device * dev, int chunkInNAND, +- const __u8 * data, +- const yaffs_ExtendedTags * tags); +-static void yaffs_HandleUpdateChunk(yaffs_Device * dev, int chunkInNAND, +- const yaffs_ExtendedTags * tags); ++static void yaffs_RetireBlock(yaffs_Device *dev, int blockInNAND); ++static void yaffs_HandleWriteChunkError(yaffs_Device *dev, int chunkInNAND, ++ int erasedOk); ++static void yaffs_HandleWriteChunkOk(yaffs_Device *dev, int chunkInNAND, ++ const __u8 *data, ++ const yaffs_ExtendedTags *tags); ++static void yaffs_HandleUpdateChunk(yaffs_Device *dev, int chunkInNAND, ++ const yaffs_ExtendedTags *tags); + + /* Other local prototypes */ +-static int yaffs_UnlinkObject( yaffs_Object *obj); ++static int yaffs_UnlinkObject(yaffs_Object *obj); + static int yaffs_ObjectHasCachedWriteData(yaffs_Object *obj); + + static void yaffs_HardlinkFixup(yaffs_Device *dev, yaffs_Object *hardList); + +-static int yaffs_WriteNewChunkWithTagsToNAND(yaffs_Device * dev, +- const __u8 * buffer, +- yaffs_ExtendedTags * tags, +- int useReserve); +-static int yaffs_PutChunkIntoFile(yaffs_Object * in, int chunkInInode, +- int chunkInNAND, int inScan); +- +-static yaffs_Object *yaffs_CreateNewObject(yaffs_Device * dev, int number, +- yaffs_ObjectType type); +-static void yaffs_AddObjectToDirectory(yaffs_Object * directory, +- yaffs_Object * obj); +-static int yaffs_UpdateObjectHeader(yaffs_Object * in, const YCHAR * name, +- int force, int isShrink, int shadows); +-static void yaffs_RemoveObjectFromDirectory(yaffs_Object * obj); ++static int yaffs_WriteNewChunkWithTagsToNAND(yaffs_Device *dev, ++ const __u8 *buffer, ++ yaffs_ExtendedTags *tags, ++ int useReserve); ++static int yaffs_PutChunkIntoFile(yaffs_Object *in, int chunkInInode, ++ int chunkInNAND, int inScan); ++ ++static yaffs_Object *yaffs_CreateNewObject(yaffs_Device *dev, int number, ++ yaffs_ObjectType type); ++static void yaffs_AddObjectToDirectory(yaffs_Object *directory, ++ yaffs_Object *obj); ++static int yaffs_UpdateObjectHeader(yaffs_Object *in, const YCHAR *name, ++ int force, int isShrink, int shadows); ++static void yaffs_RemoveObjectFromDirectory(yaffs_Object *obj); + static int yaffs_CheckStructures(void); +-static int yaffs_DeleteWorker(yaffs_Object * in, yaffs_Tnode * tn, __u32 level, +- int chunkOffset, int *limit); +-static int yaffs_DoGenericObjectDeletion(yaffs_Object * in); +- +-static yaffs_BlockInfo *yaffs_GetBlockInfo(yaffs_Device * dev, int blockNo); +- +-static __u8 *yaffs_GetTempBuffer(yaffs_Device * dev, int lineNo); +-static void yaffs_ReleaseTempBuffer(yaffs_Device * dev, __u8 * buffer, +- int lineNo); ++static int yaffs_DeleteWorker(yaffs_Object *in, yaffs_Tnode *tn, __u32 level, ++ int chunkOffset, int *limit); ++static int yaffs_DoGenericObjectDeletion(yaffs_Object *in); ++ ++static yaffs_BlockInfo *yaffs_GetBlockInfo(yaffs_Device *dev, int blockNo); + +-static int yaffs_CheckChunkErased(struct yaffs_DeviceStruct *dev, +- int chunkInNAND); + +-static int yaffs_UnlinkWorker(yaffs_Object * obj); +-static void yaffs_DestroyObject(yaffs_Object * obj); ++static int yaffs_CheckChunkErased(struct yaffs_DeviceStruct *dev, ++ int chunkInNAND); + +-static int yaffs_TagsMatch(const yaffs_ExtendedTags * tags, int objectId, +- int chunkInObject); ++static int yaffs_UnlinkWorker(yaffs_Object *obj); + +-loff_t yaffs_GetFileSize(yaffs_Object * obj); ++static int yaffs_TagsMatch(const yaffs_ExtendedTags *tags, int objectId, ++ int chunkInObject); + +-static int yaffs_AllocateChunk(yaffs_Device * dev, int useReserve, yaffs_BlockInfo **blockUsedPtr); ++static int yaffs_AllocateChunk(yaffs_Device *dev, int useReserve, ++ yaffs_BlockInfo **blockUsedPtr); + +-static void yaffs_VerifyFreeChunks(yaffs_Device * dev); ++static void yaffs_VerifyFreeChunks(yaffs_Device *dev); + + static void yaffs_CheckObjectDetailsLoaded(yaffs_Object *in); + ++static void yaffs_VerifyDirectory(yaffs_Object *directory); + #ifdef YAFFS_PARANOID +-static int yaffs_CheckFileSanity(yaffs_Object * in); ++static int yaffs_CheckFileSanity(yaffs_Object *in); + #else + #define yaffs_CheckFileSanity(in) + #endif + +-static void yaffs_InvalidateWholeChunkCache(yaffs_Object * in); +-static void yaffs_InvalidateChunkCache(yaffs_Object * object, int chunkId); ++static void yaffs_InvalidateWholeChunkCache(yaffs_Object *in); ++static void yaffs_InvalidateChunkCache(yaffs_Object *object, int chunkId); + + static void yaffs_InvalidateCheckpoint(yaffs_Device *dev); + +-static int yaffs_FindChunkInFile(yaffs_Object * in, int chunkInInode, +- yaffs_ExtendedTags * tags); ++static int yaffs_FindChunkInFile(yaffs_Object *in, int chunkInInode, ++ yaffs_ExtendedTags *tags); + +-static __u32 yaffs_GetChunkGroupBase(yaffs_Device *dev, yaffs_Tnode *tn, unsigned pos); +-static yaffs_Tnode *yaffs_FindLevel0Tnode(yaffs_Device * dev, +- yaffs_FileStructure * fStruct, +- __u32 chunkId); ++static __u32 yaffs_GetChunkGroupBase(yaffs_Device *dev, yaffs_Tnode *tn, ++ unsigned pos); ++static yaffs_Tnode *yaffs_FindLevel0Tnode(yaffs_Device *dev, ++ yaffs_FileStructure *fStruct, ++ __u32 chunkId); + + + /* Function to calculate chunk and offset */ + +-static void yaffs_AddrToChunk(yaffs_Device *dev, loff_t addr, __u32 *chunk, __u32 *offset) ++static void yaffs_AddrToChunk(yaffs_Device *dev, loff_t addr, int *chunkOut, ++ __u32 *offsetOut) + { +- if(dev->chunkShift){ +- /* Easy-peasy power of 2 case */ +- *chunk = (__u32)(addr >> dev->chunkShift); +- *offset = (__u32)(addr & dev->chunkMask); +- } +- else if(dev->crumbsPerChunk) +- { +- /* Case where we're using "crumbs" */ +- *offset = (__u32)(addr & dev->crumbMask); +- addr >>= dev->crumbShift; +- *chunk = ((__u32)addr)/dev->crumbsPerChunk; +- *offset += ((addr - (*chunk * dev->crumbsPerChunk)) << dev->crumbShift); ++ int chunk; ++ __u32 offset; ++ ++ chunk = (__u32)(addr >> dev->chunkShift); ++ ++ if (dev->chunkDiv == 1) { ++ /* easy power of 2 case */ ++ offset = (__u32)(addr & dev->chunkMask); ++ } else { ++ /* Non power-of-2 case */ ++ ++ loff_t chunkBase; ++ ++ chunk /= dev->chunkDiv; ++ ++ chunkBase = ((loff_t)chunk) * dev->nDataBytesPerChunk; ++ offset = (__u32)(addr - chunkBase); + } +- else +- YBUG(); ++ ++ *chunkOut = chunk; ++ *offsetOut = offset; + } + +-/* Function to return the number of shifts for a power of 2 greater than or equal +- * to the given number ++/* Function to return the number of shifts for a power of 2 greater than or ++ * equal to the given number + * Note we don't try to cater for all possible numbers and this does not have to + * be hellishly efficient. + */ +@@ -153,13 +154,14 @@ static __u32 ShiftsGE(__u32 x) + + nShifts = extraBits = 0; + +- while(x>1){ +- if(x & 1) extraBits++; +- x>>=1; ++ while (x > 1) { ++ if (x & 1) ++ extraBits++; ++ x >>= 1; + nShifts++; + } + +- if(extraBits) ++ if (extraBits) + nShifts++; + + return nShifts; +@@ -168,16 +170,17 @@ static __u32 ShiftsGE(__u32 x) + /* Function to return the number of shifts to get a 1 in bit 0 + */ + +-static __u32 ShiftDiv(__u32 x) ++static __u32 Shifts(__u32 x) + { + int nShifts; + + nShifts = 0; + +- if(!x) return 0; ++ if (!x) ++ return 0; + +- while( !(x&1)){ +- x>>=1; ++ while (!(x&1)) { ++ x >>= 1; + nShifts++; + } + +@@ -195,21 +198,25 @@ static int yaffs_InitialiseTempBuffers(y + int i; + __u8 *buf = (__u8 *)1; + +- memset(dev->tempBuffer,0,sizeof(dev->tempBuffer)); ++ memset(dev->tempBuffer, 0, sizeof(dev->tempBuffer)); + + for (i = 0; buf && i < YAFFS_N_TEMP_BUFFERS; i++) { + dev->tempBuffer[i].line = 0; /* not in use */ + dev->tempBuffer[i].buffer = buf = +- YMALLOC_DMA(dev->nDataBytesPerChunk); ++ YMALLOC_DMA(dev->totalBytesPerChunk); + } + + return buf ? YAFFS_OK : YAFFS_FAIL; +- + } + +-static __u8 *yaffs_GetTempBuffer(yaffs_Device * dev, int lineNo) ++__u8 *yaffs_GetTempBuffer(yaffs_Device *dev, int lineNo) + { + int i, j; ++ ++ dev->tempInUse++; ++ if (dev->tempInUse > dev->maxTemp) ++ dev->maxTemp = dev->tempInUse; ++ + for (i = 0; i < YAFFS_N_TEMP_BUFFERS; i++) { + if (dev->tempBuffer[i].line == 0) { + dev->tempBuffer[i].line = lineNo; +@@ -227,9 +234,9 @@ static __u8 *yaffs_GetTempBuffer(yaffs_D + T(YAFFS_TRACE_BUFFERS, + (TSTR("Out of temp buffers at line %d, other held by lines:"), + lineNo)); +- for (i = 0; i < YAFFS_N_TEMP_BUFFERS; i++) { ++ for (i = 0; i < YAFFS_N_TEMP_BUFFERS; i++) + T(YAFFS_TRACE_BUFFERS, (TSTR(" %d "), dev->tempBuffer[i].line)); +- } ++ + T(YAFFS_TRACE_BUFFERS, (TSTR(" " TENDSTR))); + + /* +@@ -242,10 +249,13 @@ static __u8 *yaffs_GetTempBuffer(yaffs_D + + } + +-static void yaffs_ReleaseTempBuffer(yaffs_Device * dev, __u8 * buffer, ++void yaffs_ReleaseTempBuffer(yaffs_Device *dev, __u8 *buffer, + int lineNo) + { + int i; ++ ++ dev->tempInUse--; ++ + for (i = 0; i < YAFFS_N_TEMP_BUFFERS; i++) { + if (dev->tempBuffer[i].buffer == buffer) { + dev->tempBuffer[i].line = 0; +@@ -267,27 +277,26 @@ static void yaffs_ReleaseTempBuffer(yaff + /* + * Determine if we have a managed buffer. + */ +-int yaffs_IsManagedTempBuffer(yaffs_Device * dev, const __u8 * buffer) ++int yaffs_IsManagedTempBuffer(yaffs_Device *dev, const __u8 *buffer) + { + int i; ++ + for (i = 0; i < YAFFS_N_TEMP_BUFFERS; i++) { + if (dev->tempBuffer[i].buffer == buffer) + return 1; ++ } + ++ for (i = 0; i < dev->nShortOpCaches; i++) { ++ if (dev->srCache[i].data == buffer) ++ return 1; + } + +- for (i = 0; i < dev->nShortOpCaches; i++) { +- if( dev->srCache[i].data == buffer ) +- return 1; +- +- } +- +- if (buffer == dev->checkpointBuffer) +- return 1; +- +- T(YAFFS_TRACE_ALWAYS, +- (TSTR("yaffs: unmaged buffer detected.\n" TENDSTR))); +- return 0; ++ if (buffer == dev->checkpointBuffer) ++ return 1; ++ ++ T(YAFFS_TRACE_ALWAYS, ++ (TSTR("yaffs: unmaged buffer detected.\n" TENDSTR))); ++ return 0; + } + + +@@ -296,62 +305,63 @@ int yaffs_IsManagedTempBuffer(yaffs_Devi + * Chunk bitmap manipulations + */ + +-static Y_INLINE __u8 *yaffs_BlockBits(yaffs_Device * dev, int blk) ++static Y_INLINE __u8 *yaffs_BlockBits(yaffs_Device *dev, int blk) + { + if (blk < dev->internalStartBlock || blk > dev->internalEndBlock) { + T(YAFFS_TRACE_ERROR, +- (TSTR("**>> yaffs: BlockBits block %d is not valid" TENDSTR), +- blk)); ++ (TSTR("**>> yaffs: BlockBits block %d is not valid" TENDSTR), ++ blk)); + YBUG(); + } + return dev->chunkBits + +- (dev->chunkBitmapStride * (blk - dev->internalStartBlock)); ++ (dev->chunkBitmapStride * (blk - dev->internalStartBlock)); + } + + static Y_INLINE void yaffs_VerifyChunkBitId(yaffs_Device *dev, int blk, int chunk) + { +- if(blk < dev->internalStartBlock || blk > dev->internalEndBlock || +- chunk < 0 || chunk >= dev->nChunksPerBlock) { +- T(YAFFS_TRACE_ERROR, +- (TSTR("**>> yaffs: Chunk Id (%d:%d) invalid"TENDSTR),blk,chunk)); +- YBUG(); ++ if (blk < dev->internalStartBlock || blk > dev->internalEndBlock || ++ chunk < 0 || chunk >= dev->nChunksPerBlock) { ++ T(YAFFS_TRACE_ERROR, ++ (TSTR("**>> yaffs: Chunk Id (%d:%d) invalid"TENDSTR), ++ blk, chunk)); ++ YBUG(); + } + } + +-static Y_INLINE void yaffs_ClearChunkBits(yaffs_Device * dev, int blk) ++static Y_INLINE void yaffs_ClearChunkBits(yaffs_Device *dev, int blk) + { + __u8 *blkBits = yaffs_BlockBits(dev, blk); + + memset(blkBits, 0, dev->chunkBitmapStride); + } + +-static Y_INLINE void yaffs_ClearChunkBit(yaffs_Device * dev, int blk, int chunk) ++static Y_INLINE void yaffs_ClearChunkBit(yaffs_Device *dev, int blk, int chunk) + { + __u8 *blkBits = yaffs_BlockBits(dev, blk); + +- yaffs_VerifyChunkBitId(dev,blk,chunk); ++ yaffs_VerifyChunkBitId(dev, blk, chunk); + + blkBits[chunk / 8] &= ~(1 << (chunk & 7)); + } + +-static Y_INLINE void yaffs_SetChunkBit(yaffs_Device * dev, int blk, int chunk) ++static Y_INLINE void yaffs_SetChunkBit(yaffs_Device *dev, int blk, int chunk) + { + __u8 *blkBits = yaffs_BlockBits(dev, blk); + +- yaffs_VerifyChunkBitId(dev,blk,chunk); ++ yaffs_VerifyChunkBitId(dev, blk, chunk); + + blkBits[chunk / 8] |= (1 << (chunk & 7)); + } + +-static Y_INLINE int yaffs_CheckChunkBit(yaffs_Device * dev, int blk, int chunk) ++static Y_INLINE int yaffs_CheckChunkBit(yaffs_Device *dev, int blk, int chunk) + { + __u8 *blkBits = yaffs_BlockBits(dev, blk); +- yaffs_VerifyChunkBitId(dev,blk,chunk); ++ yaffs_VerifyChunkBitId(dev, blk, chunk); + + return (blkBits[chunk / 8] & (1 << (chunk & 7))) ? 1 : 0; + } + +-static Y_INLINE int yaffs_StillSomeChunkBits(yaffs_Device * dev, int blk) ++static Y_INLINE int yaffs_StillSomeChunkBits(yaffs_Device *dev, int blk) + { + __u8 *blkBits = yaffs_BlockBits(dev, blk); + int i; +@@ -363,17 +373,17 @@ static Y_INLINE int yaffs_StillSomeChunk + return 0; + } + +-static int yaffs_CountChunkBits(yaffs_Device * dev, int blk) ++static int yaffs_CountChunkBits(yaffs_Device *dev, int blk) + { + __u8 *blkBits = yaffs_BlockBits(dev, blk); + int i; + int n = 0; + for (i = 0; i < dev->chunkBitmapStride; i++) { + __u8 x = *blkBits; +- while(x){ +- if(x & 1) ++ while (x) { ++ if (x & 1) + n++; +- x >>=1; ++ x >>= 1; + } + + blkBits++; +@@ -400,7 +410,7 @@ static int yaffs_SkipNANDVerification(ya + return !(yaffs_traceMask & (YAFFS_TRACE_VERIFY_NAND)); + } + +-static const char * blockStateName[] = { ++static const char *blockStateName[] = { + "Unknown", + "Needs scanning", + "Scanning", +@@ -413,64 +423,65 @@ static const char * blockStateName[] = { + "Dead" + }; + +-static void yaffs_VerifyBlock(yaffs_Device *dev,yaffs_BlockInfo *bi,int n) ++static void yaffs_VerifyBlock(yaffs_Device *dev, yaffs_BlockInfo *bi, int n) + { + int actuallyUsed; + int inUse; + +- if(yaffs_SkipVerification(dev)) ++ if (yaffs_SkipVerification(dev)) + return; + + /* Report illegal runtime states */ +- if(bi->blockState <0 || bi->blockState >= YAFFS_NUMBER_OF_BLOCK_STATES) +- T(YAFFS_TRACE_VERIFY,(TSTR("Block %d has undefined state %d"TENDSTR),n,bi->blockState)); ++ if (bi->blockState >= YAFFS_NUMBER_OF_BLOCK_STATES) ++ T(YAFFS_TRACE_VERIFY, (TSTR("Block %d has undefined state %d"TENDSTR), n, bi->blockState)); + +- switch(bi->blockState){ +- case YAFFS_BLOCK_STATE_UNKNOWN: +- case YAFFS_BLOCK_STATE_SCANNING: +- case YAFFS_BLOCK_STATE_NEEDS_SCANNING: +- T(YAFFS_TRACE_VERIFY,(TSTR("Block %d has bad run-state %s"TENDSTR), +- n,blockStateName[bi->blockState])); ++ switch (bi->blockState) { ++ case YAFFS_BLOCK_STATE_UNKNOWN: ++ case YAFFS_BLOCK_STATE_SCANNING: ++ case YAFFS_BLOCK_STATE_NEEDS_SCANNING: ++ T(YAFFS_TRACE_VERIFY, (TSTR("Block %d has bad run-state %s"TENDSTR), ++ n, blockStateName[bi->blockState])); + } + + /* Check pages in use and soft deletions are legal */ + + actuallyUsed = bi->pagesInUse - bi->softDeletions; + +- if(bi->pagesInUse < 0 || bi->pagesInUse > dev->nChunksPerBlock || ++ if (bi->pagesInUse < 0 || bi->pagesInUse > dev->nChunksPerBlock || + bi->softDeletions < 0 || bi->softDeletions > dev->nChunksPerBlock || + actuallyUsed < 0 || actuallyUsed > dev->nChunksPerBlock) +- T(YAFFS_TRACE_VERIFY,(TSTR("Block %d has illegal values pagesInUsed %d softDeletions %d"TENDSTR), +- n,bi->pagesInUse,bi->softDeletions)); ++ T(YAFFS_TRACE_VERIFY, (TSTR("Block %d has illegal values pagesInUsed %d softDeletions %d"TENDSTR), ++ n, bi->pagesInUse, bi->softDeletions)); + + + /* Check chunk bitmap legal */ +- inUse = yaffs_CountChunkBits(dev,n); +- if(inUse != bi->pagesInUse) +- T(YAFFS_TRACE_VERIFY,(TSTR("Block %d has inconsistent values pagesInUse %d counted chunk bits %d"TENDSTR), +- n,bi->pagesInUse,inUse)); ++ inUse = yaffs_CountChunkBits(dev, n); ++ if (inUse != bi->pagesInUse) ++ T(YAFFS_TRACE_VERIFY, (TSTR("Block %d has inconsistent values pagesInUse %d counted chunk bits %d"TENDSTR), ++ n, bi->pagesInUse, inUse)); + + /* Check that the sequence number is valid. + * Ten million is legal, but is very unlikely + */ +- if(dev->isYaffs2 && ++ if (dev->isYaffs2 && + (bi->blockState == YAFFS_BLOCK_STATE_ALLOCATING || bi->blockState == YAFFS_BLOCK_STATE_FULL) && +- (bi->sequenceNumber < YAFFS_LOWEST_SEQUENCE_NUMBER || bi->sequenceNumber > 10000000 )) +- T(YAFFS_TRACE_VERIFY,(TSTR("Block %d has suspect sequence number of %d"TENDSTR), +- n,bi->sequenceNumber)); +- ++ (bi->sequenceNumber < YAFFS_LOWEST_SEQUENCE_NUMBER || bi->sequenceNumber > 10000000)) ++ T(YAFFS_TRACE_VERIFY, (TSTR("Block %d has suspect sequence number of %d"TENDSTR), ++ n, bi->sequenceNumber)); + } + +-static void yaffs_VerifyCollectedBlock(yaffs_Device *dev,yaffs_BlockInfo *bi,int n) ++static void yaffs_VerifyCollectedBlock(yaffs_Device *dev, yaffs_BlockInfo *bi, ++ int n) + { +- yaffs_VerifyBlock(dev,bi,n); ++ yaffs_VerifyBlock(dev, bi, n); + + /* After collection the block should be in the erased state */ +- /* TODO: This will need to change if we do partial gc */ ++ /* This will need to change if we do partial gc */ + +- if(bi->blockState != YAFFS_BLOCK_STATE_EMPTY){ +- T(YAFFS_TRACE_ERROR,(TSTR("Block %d is in state %d after gc, should be erased"TENDSTR), +- n,bi->blockState)); ++ if (bi->blockState != YAFFS_BLOCK_STATE_COLLECTING && ++ bi->blockState != YAFFS_BLOCK_STATE_EMPTY) { ++ T(YAFFS_TRACE_ERROR, (TSTR("Block %d is in state %d after gc, should be erased"TENDSTR), ++ n, bi->blockState)); + } + } + +@@ -480,52 +491,49 @@ static void yaffs_VerifyBlocks(yaffs_Dev + int nBlocksPerState[YAFFS_NUMBER_OF_BLOCK_STATES]; + int nIllegalBlockStates = 0; + +- +- if(yaffs_SkipVerification(dev)) ++ if (yaffs_SkipVerification(dev)) + return; + +- memset(nBlocksPerState,0,sizeof(nBlocksPerState)); +- ++ memset(nBlocksPerState, 0, sizeof(nBlocksPerState)); + +- for(i = dev->internalStartBlock; i <= dev->internalEndBlock; i++){ +- yaffs_BlockInfo *bi = yaffs_GetBlockInfo(dev,i); +- yaffs_VerifyBlock(dev,bi,i); ++ for (i = dev->internalStartBlock; i <= dev->internalEndBlock; i++) { ++ yaffs_BlockInfo *bi = yaffs_GetBlockInfo(dev, i); ++ yaffs_VerifyBlock(dev, bi, i); + +- if(bi->blockState >=0 && bi->blockState < YAFFS_NUMBER_OF_BLOCK_STATES) ++ if (bi->blockState < YAFFS_NUMBER_OF_BLOCK_STATES) + nBlocksPerState[bi->blockState]++; + else + nIllegalBlockStates++; +- + } + +- T(YAFFS_TRACE_VERIFY,(TSTR(""TENDSTR))); +- T(YAFFS_TRACE_VERIFY,(TSTR("Block summary"TENDSTR))); ++ T(YAFFS_TRACE_VERIFY, (TSTR(""TENDSTR))); ++ T(YAFFS_TRACE_VERIFY, (TSTR("Block summary"TENDSTR))); + +- T(YAFFS_TRACE_VERIFY,(TSTR("%d blocks have illegal states"TENDSTR),nIllegalBlockStates)); +- if(nBlocksPerState[YAFFS_BLOCK_STATE_ALLOCATING] > 1) +- T(YAFFS_TRACE_VERIFY,(TSTR("Too many allocating blocks"TENDSTR))); ++ T(YAFFS_TRACE_VERIFY, (TSTR("%d blocks have illegal states"TENDSTR), nIllegalBlockStates)); ++ if (nBlocksPerState[YAFFS_BLOCK_STATE_ALLOCATING] > 1) ++ T(YAFFS_TRACE_VERIFY, (TSTR("Too many allocating blocks"TENDSTR))); + +- for(i = 0; i < YAFFS_NUMBER_OF_BLOCK_STATES; i++) ++ for (i = 0; i < YAFFS_NUMBER_OF_BLOCK_STATES; i++) + T(YAFFS_TRACE_VERIFY, + (TSTR("%s %d blocks"TENDSTR), +- blockStateName[i],nBlocksPerState[i])); ++ blockStateName[i], nBlocksPerState[i])); + +- if(dev->blocksInCheckpoint != nBlocksPerState[YAFFS_BLOCK_STATE_CHECKPOINT]) ++ if (dev->blocksInCheckpoint != nBlocksPerState[YAFFS_BLOCK_STATE_CHECKPOINT]) + T(YAFFS_TRACE_VERIFY, + (TSTR("Checkpoint block count wrong dev %d count %d"TENDSTR), + dev->blocksInCheckpoint, nBlocksPerState[YAFFS_BLOCK_STATE_CHECKPOINT])); + +- if(dev->nErasedBlocks != nBlocksPerState[YAFFS_BLOCK_STATE_EMPTY]) ++ if (dev->nErasedBlocks != nBlocksPerState[YAFFS_BLOCK_STATE_EMPTY]) + T(YAFFS_TRACE_VERIFY, + (TSTR("Erased block count wrong dev %d count %d"TENDSTR), + dev->nErasedBlocks, nBlocksPerState[YAFFS_BLOCK_STATE_EMPTY])); + +- if(nBlocksPerState[YAFFS_BLOCK_STATE_COLLECTING] > 1) ++ if (nBlocksPerState[YAFFS_BLOCK_STATE_COLLECTING] > 1) + T(YAFFS_TRACE_VERIFY, + (TSTR("Too many collecting blocks %d (max is 1)"TENDSTR), + nBlocksPerState[YAFFS_BLOCK_STATE_COLLECTING])); + +- T(YAFFS_TRACE_VERIFY,(TSTR(""TENDSTR))); ++ T(YAFFS_TRACE_VERIFY, (TSTR(""TENDSTR))); + + } + +@@ -535,26 +543,26 @@ static void yaffs_VerifyBlocks(yaffs_Dev + */ + static void yaffs_VerifyObjectHeader(yaffs_Object *obj, yaffs_ObjectHeader *oh, yaffs_ExtendedTags *tags, int parentCheck) + { +- if(yaffs_SkipVerification(obj->myDev)) ++ if (obj && yaffs_SkipVerification(obj->myDev)) + return; + +- if(!(tags && obj && oh)){ +- T(YAFFS_TRACE_VERIFY, +- (TSTR("Verifying object header tags %x obj %x oh %x"TENDSTR), +- (__u32)tags,(__u32)obj,(__u32)oh)); ++ if (!(tags && obj && oh)) { ++ T(YAFFS_TRACE_VERIFY, ++ (TSTR("Verifying object header tags %x obj %x oh %x"TENDSTR), ++ (__u32)tags, (__u32)obj, (__u32)oh)); + return; + } + +- if(oh->type <= YAFFS_OBJECT_TYPE_UNKNOWN || +- oh->type > YAFFS_OBJECT_TYPE_MAX) +- T(YAFFS_TRACE_VERIFY, +- (TSTR("Obj %d header type is illegal value 0x%x"TENDSTR), +- tags->objectId, oh->type)); +- +- if(tags->objectId != obj->objectId) +- T(YAFFS_TRACE_VERIFY, +- (TSTR("Obj %d header mismatch objectId %d"TENDSTR), +- tags->objectId, obj->objectId)); ++ if (oh->type <= YAFFS_OBJECT_TYPE_UNKNOWN || ++ oh->type > YAFFS_OBJECT_TYPE_MAX) ++ T(YAFFS_TRACE_VERIFY, ++ (TSTR("Obj %d header type is illegal value 0x%x"TENDSTR), ++ tags->objectId, oh->type)); ++ ++ if (tags->objectId != obj->objectId) ++ T(YAFFS_TRACE_VERIFY, ++ (TSTR("Obj %d header mismatch objectId %d"TENDSTR), ++ tags->objectId, obj->objectId)); + + + /* +@@ -563,46 +571,43 @@ static void yaffs_VerifyObjectHeader(yaf + * Tests do not apply to the root object. + */ + +- if(parentCheck && tags->objectId > 1 && !obj->parent) +- T(YAFFS_TRACE_VERIFY, +- (TSTR("Obj %d header mismatch parentId %d obj->parent is NULL"TENDSTR), +- tags->objectId, oh->parentObjectId)); +- +- +- if(parentCheck && obj->parent && +- oh->parentObjectId != obj->parent->objectId && +- (oh->parentObjectId != YAFFS_OBJECTID_UNLINKED || +- obj->parent->objectId != YAFFS_OBJECTID_DELETED)) +- T(YAFFS_TRACE_VERIFY, +- (TSTR("Obj %d header mismatch parentId %d parentObjectId %d"TENDSTR), +- tags->objectId, oh->parentObjectId, obj->parent->objectId)); ++ if (parentCheck && tags->objectId > 1 && !obj->parent) ++ T(YAFFS_TRACE_VERIFY, ++ (TSTR("Obj %d header mismatch parentId %d obj->parent is NULL"TENDSTR), ++ tags->objectId, oh->parentObjectId)); + ++ if (parentCheck && obj->parent && ++ oh->parentObjectId != obj->parent->objectId && ++ (oh->parentObjectId != YAFFS_OBJECTID_UNLINKED || ++ obj->parent->objectId != YAFFS_OBJECTID_DELETED)) ++ T(YAFFS_TRACE_VERIFY, ++ (TSTR("Obj %d header mismatch parentId %d parentObjectId %d"TENDSTR), ++ tags->objectId, oh->parentObjectId, obj->parent->objectId)); + +- if(tags->objectId > 1 && oh->name[0] == 0) /* Null name */ ++ if (tags->objectId > 1 && oh->name[0] == 0) /* Null name */ + T(YAFFS_TRACE_VERIFY, +- (TSTR("Obj %d header name is NULL"TENDSTR), +- obj->objectId)); ++ (TSTR("Obj %d header name is NULL"TENDSTR), ++ obj->objectId)); + +- if(tags->objectId > 1 && ((__u8)(oh->name[0])) == 0xff) /* Trashed name */ ++ if (tags->objectId > 1 && ((__u8)(oh->name[0])) == 0xff) /* Trashed name */ + T(YAFFS_TRACE_VERIFY, +- (TSTR("Obj %d header name is 0xFF"TENDSTR), +- obj->objectId)); ++ (TSTR("Obj %d header name is 0xFF"TENDSTR), ++ obj->objectId)); + } + + + +-static int yaffs_VerifyTnodeWorker(yaffs_Object * obj, yaffs_Tnode * tn, +- __u32 level, int chunkOffset) ++static int yaffs_VerifyTnodeWorker(yaffs_Object *obj, yaffs_Tnode *tn, ++ __u32 level, int chunkOffset) + { + int i; + yaffs_Device *dev = obj->myDev; + int ok = 1; +- int nTnodeBytes = (dev->tnodeWidth * YAFFS_NTNODES_LEVEL0)/8; + + if (tn) { + if (level > 0) { + +- for (i = 0; i < YAFFS_NTNODES_INTERNAL && ok; i++){ ++ for (i = 0; i < YAFFS_NTNODES_INTERNAL && ok; i++) { + if (tn->internal[i]) { + ok = yaffs_VerifyTnodeWorker(obj, + tn->internal[i], +@@ -611,20 +616,19 @@ static int yaffs_VerifyTnodeWorker(yaffs + } + } + } else if (level == 0) { +- int i; + yaffs_ExtendedTags tags; + __u32 objectId = obj->objectId; + + chunkOffset <<= YAFFS_TNODES_LEVEL0_BITS; + +- for(i = 0; i < YAFFS_NTNODES_LEVEL0; i++){ +- __u32 theChunk = yaffs_GetChunkGroupBase(dev,tn,i); ++ for (i = 0; i < YAFFS_NTNODES_LEVEL0; i++) { ++ __u32 theChunk = yaffs_GetChunkGroupBase(dev, tn, i); + +- if(theChunk > 0){ ++ if (theChunk > 0) { + /* T(~0,(TSTR("verifying (%d:%d) %d"TENDSTR),tags.objectId,tags.chunkId,theChunk)); */ +- yaffs_ReadChunkWithTagsFromNAND(dev,theChunk,NULL, &tags); +- if(tags.objectId != objectId || tags.chunkId != chunkOffset){ +- T(~0,(TSTR("Object %d chunkId %d NAND mismatch chunk %d tags (%d:%d)"TENDSTR), ++ yaffs_ReadChunkWithTagsFromNAND(dev, theChunk, NULL, &tags); ++ if (tags.objectId != objectId || tags.chunkId != chunkOffset) { ++ T(~0, (TSTR("Object %d chunkId %d NAND mismatch chunk %d tags (%d:%d)"TENDSTR), + objectId, chunkOffset, theChunk, + tags.objectId, tags.chunkId)); + } +@@ -646,13 +650,15 @@ static void yaffs_VerifyFile(yaffs_Objec + __u32 lastChunk; + __u32 x; + __u32 i; +- int ok; + yaffs_Device *dev; + yaffs_ExtendedTags tags; + yaffs_Tnode *tn; + __u32 objectId; + +- if(obj && yaffs_SkipVerification(obj->myDev)) ++ if (!obj) ++ return; ++ ++ if (yaffs_SkipVerification(obj->myDev)) + return; + + dev = obj->myDev; +@@ -662,17 +668,17 @@ static void yaffs_VerifyFile(yaffs_Objec + lastChunk = obj->variant.fileVariant.fileSize / dev->nDataBytesPerChunk + 1; + x = lastChunk >> YAFFS_TNODES_LEVEL0_BITS; + requiredTallness = 0; +- while (x> 0) { ++ while (x > 0) { + x >>= YAFFS_TNODES_INTERNAL_BITS; + requiredTallness++; + } + + actualTallness = obj->variant.fileVariant.topLevel; + +- if(requiredTallness > actualTallness ) ++ if (requiredTallness > actualTallness) + T(YAFFS_TRACE_VERIFY, + (TSTR("Obj %d had tnode tallness %d, needs to be %d"TENDSTR), +- obj->objectId,actualTallness, requiredTallness)); ++ obj->objectId, actualTallness, requiredTallness)); + + + /* Check that the chunks in the tnode tree are all correct. +@@ -680,39 +686,31 @@ static void yaffs_VerifyFile(yaffs_Objec + * checking the tags for every chunk match. + */ + +- if(yaffs_SkipNANDVerification(dev)) ++ if (yaffs_SkipNANDVerification(dev)) + return; + +- for(i = 1; i <= lastChunk; i++){ +- tn = yaffs_FindLevel0Tnode(dev, &obj->variant.fileVariant,i); ++ for (i = 1; i <= lastChunk; i++) { ++ tn = yaffs_FindLevel0Tnode(dev, &obj->variant.fileVariant, i); + + if (tn) { +- __u32 theChunk = yaffs_GetChunkGroupBase(dev,tn,i); +- if(theChunk > 0){ ++ __u32 theChunk = yaffs_GetChunkGroupBase(dev, tn, i); ++ if (theChunk > 0) { + /* T(~0,(TSTR("verifying (%d:%d) %d"TENDSTR),objectId,i,theChunk)); */ +- yaffs_ReadChunkWithTagsFromNAND(dev,theChunk,NULL, &tags); +- if(tags.objectId != objectId || tags.chunkId != i){ +- T(~0,(TSTR("Object %d chunkId %d NAND mismatch chunk %d tags (%d:%d)"TENDSTR), ++ yaffs_ReadChunkWithTagsFromNAND(dev, theChunk, NULL, &tags); ++ if (tags.objectId != objectId || tags.chunkId != i) { ++ T(~0, (TSTR("Object %d chunkId %d NAND mismatch chunk %d tags (%d:%d)"TENDSTR), + objectId, i, theChunk, + tags.objectId, tags.chunkId)); + } + } + } +- + } +- + } + +-static void yaffs_VerifyDirectory(yaffs_Object *obj) +-{ +- if(obj && yaffs_SkipVerification(obj->myDev)) +- return; +- +-} + + static void yaffs_VerifyHardLink(yaffs_Object *obj) + { +- if(obj && yaffs_SkipVerification(obj->myDev)) ++ if (obj && yaffs_SkipVerification(obj->myDev)) + return; + + /* Verify sane equivalent object */ +@@ -720,7 +718,7 @@ static void yaffs_VerifyHardLink(yaffs_O + + static void yaffs_VerifySymlink(yaffs_Object *obj) + { +- if(obj && yaffs_SkipVerification(obj->myDev)) ++ if (obj && yaffs_SkipVerification(obj->myDev)) + return; + + /* Verify symlink string */ +@@ -728,7 +726,7 @@ static void yaffs_VerifySymlink(yaffs_Ob + + static void yaffs_VerifySpecial(yaffs_Object *obj) + { +- if(obj && yaffs_SkipVerification(obj->myDev)) ++ if (obj && yaffs_SkipVerification(obj->myDev)) + return; + } + +@@ -740,14 +738,19 @@ static void yaffs_VerifyObject(yaffs_Obj + __u32 chunkMax; + + __u32 chunkIdOk; +- __u32 chunkIsLive; ++ __u32 chunkInRange; ++ __u32 chunkShouldNotBeDeleted; ++ __u32 chunkValid; ++ ++ if (!obj) ++ return; + +- if(!obj) ++ if (obj->beingCreated) + return; + + dev = obj->myDev; + +- if(yaffs_SkipVerification(dev)) ++ if (yaffs_SkipVerification(dev)) + return; + + /* Check sane object header chunk */ +@@ -755,50 +758,54 @@ static void yaffs_VerifyObject(yaffs_Obj + chunkMin = dev->internalStartBlock * dev->nChunksPerBlock; + chunkMax = (dev->internalEndBlock+1) * dev->nChunksPerBlock - 1; + +- chunkIdOk = (obj->chunkId >= chunkMin && obj->chunkId <= chunkMax); +- chunkIsLive = chunkIdOk && ++ chunkInRange = (((unsigned)(obj->hdrChunk)) >= chunkMin && ((unsigned)(obj->hdrChunk)) <= chunkMax); ++ chunkIdOk = chunkInRange || obj->hdrChunk == 0; ++ chunkValid = chunkInRange && + yaffs_CheckChunkBit(dev, +- obj->chunkId / dev->nChunksPerBlock, +- obj->chunkId % dev->nChunksPerBlock); +- if(!obj->fake && +- (!chunkIdOk || !chunkIsLive)) { +- T(YAFFS_TRACE_VERIFY, +- (TSTR("Obj %d has chunkId %d %s %s"TENDSTR), +- obj->objectId,obj->chunkId, +- chunkIdOk ? "" : ",out of range", +- chunkIsLive || !chunkIdOk ? "" : ",marked as deleted")); ++ obj->hdrChunk / dev->nChunksPerBlock, ++ obj->hdrChunk % dev->nChunksPerBlock); ++ chunkShouldNotBeDeleted = chunkInRange && !chunkValid; ++ ++ if (!obj->fake && ++ (!chunkIdOk || chunkShouldNotBeDeleted)) { ++ T(YAFFS_TRACE_VERIFY, ++ (TSTR("Obj %d has chunkId %d %s %s"TENDSTR), ++ obj->objectId, obj->hdrChunk, ++ chunkIdOk ? "" : ",out of range", ++ chunkShouldNotBeDeleted ? ",marked as deleted" : "")); + } + +- if(chunkIdOk && chunkIsLive &&!yaffs_SkipNANDVerification(dev)) { ++ if (chunkValid && !yaffs_SkipNANDVerification(dev)) { + yaffs_ExtendedTags tags; + yaffs_ObjectHeader *oh; +- __u8 *buffer = yaffs_GetTempBuffer(dev,__LINE__); ++ __u8 *buffer = yaffs_GetTempBuffer(dev, __LINE__); + + oh = (yaffs_ObjectHeader *)buffer; + +- yaffs_ReadChunkWithTagsFromNAND(dev, obj->chunkId,buffer, &tags); ++ yaffs_ReadChunkWithTagsFromNAND(dev, obj->hdrChunk, buffer, ++ &tags); + +- yaffs_VerifyObjectHeader(obj,oh,&tags,1); ++ yaffs_VerifyObjectHeader(obj, oh, &tags, 1); + +- yaffs_ReleaseTempBuffer(dev,buffer,__LINE__); ++ yaffs_ReleaseTempBuffer(dev, buffer, __LINE__); + } + + /* Verify it has a parent */ +- if(obj && !obj->fake && +- (!obj->parent || obj->parent->myDev != dev)){ +- T(YAFFS_TRACE_VERIFY, +- (TSTR("Obj %d has parent pointer %p which does not look like an object"TENDSTR), +- obj->objectId,obj->parent)); ++ if (obj && !obj->fake && ++ (!obj->parent || obj->parent->myDev != dev)) { ++ T(YAFFS_TRACE_VERIFY, ++ (TSTR("Obj %d has parent pointer %p which does not look like an object"TENDSTR), ++ obj->objectId, obj->parent)); + } + + /* Verify parent is a directory */ +- if(obj->parent && obj->parent->variantType != YAFFS_OBJECT_TYPE_DIRECTORY){ +- T(YAFFS_TRACE_VERIFY, +- (TSTR("Obj %d's parent is not a directory (type %d)"TENDSTR), +- obj->objectId,obj->parent->variantType)); ++ if (obj->parent && obj->parent->variantType != YAFFS_OBJECT_TYPE_DIRECTORY) { ++ T(YAFFS_TRACE_VERIFY, ++ (TSTR("Obj %d's parent is not a directory (type %d)"TENDSTR), ++ obj->objectId, obj->parent->variantType)); + } + +- switch(obj->variantType){ ++ switch (obj->variantType) { + case YAFFS_OBJECT_TYPE_FILE: + yaffs_VerifyFile(obj); + break; +@@ -818,33 +825,30 @@ static void yaffs_VerifyObject(yaffs_Obj + default: + T(YAFFS_TRACE_VERIFY, + (TSTR("Obj %d has illegaltype %d"TENDSTR), +- obj->objectId,obj->variantType)); ++ obj->objectId, obj->variantType)); + break; + } +- +- + } + + static void yaffs_VerifyObjects(yaffs_Device *dev) + { + yaffs_Object *obj; + int i; +- struct list_head *lh; ++ struct ylist_head *lh; + +- if(yaffs_SkipVerification(dev)) ++ if (yaffs_SkipVerification(dev)) + return; + + /* Iterate through the objects in each hash entry */ + +- for(i = 0; i < YAFFS_NOBJECT_BUCKETS; i++){ +- list_for_each(lh, &dev->objectBucket[i].list) { ++ for (i = 0; i < YAFFS_NOBJECT_BUCKETS; i++) { ++ ylist_for_each(lh, &dev->objectBucket[i].list) { + if (lh) { +- obj = list_entry(lh, yaffs_Object, hashLink); ++ obj = ylist_entry(lh, yaffs_Object, hashLink); + yaffs_VerifyObject(obj); + } + } +- } +- ++ } + } + + +@@ -855,19 +859,20 @@ static void yaffs_VerifyObjects(yaffs_De + static Y_INLINE int yaffs_HashFunction(int n) + { + n = abs(n); +- return (n % YAFFS_NOBJECT_BUCKETS); ++ return n % YAFFS_NOBJECT_BUCKETS; + } + + /* +- * Access functions to useful fake objects ++ * Access functions to useful fake objects. ++ * Note that root might have a presence in NAND if permissions are set. + */ + +-yaffs_Object *yaffs_Root(yaffs_Device * dev) ++yaffs_Object *yaffs_Root(yaffs_Device *dev) + { + return dev->rootDir; + } + +-yaffs_Object *yaffs_LostNFound(yaffs_Device * dev) ++yaffs_Object *yaffs_LostNFound(yaffs_Device *dev) + { + return dev->lostNFoundDir; + } +@@ -877,7 +882,7 @@ yaffs_Object *yaffs_LostNFound(yaffs_Dev + * Erased NAND checking functions + */ + +-int yaffs_CheckFF(__u8 * buffer, int nBytes) ++int yaffs_CheckFF(__u8 *buffer, int nBytes) + { + /* Horrible, slow implementation */ + while (nBytes--) { +@@ -889,9 +894,8 @@ int yaffs_CheckFF(__u8 * buffer, int nBy + } + + static int yaffs_CheckChunkErased(struct yaffs_DeviceStruct *dev, +- int chunkInNAND) ++ int chunkInNAND) + { +- + int retval = YAFFS_OK; + __u8 *data = yaffs_GetTempBuffer(dev, __LINE__); + yaffs_ExtendedTags tags; +@@ -899,10 +903,9 @@ static int yaffs_CheckChunkErased(struct + + result = yaffs_ReadChunkWithTagsFromNAND(dev, chunkInNAND, data, &tags); + +- if(tags.eccResult > YAFFS_ECC_RESULT_NO_ERROR) ++ if (tags.eccResult > YAFFS_ECC_RESULT_NO_ERROR) + retval = YAFFS_FAIL; + +- + if (!yaffs_CheckFF(data, dev->nDataBytesPerChunk) || tags.chunkUsed) { + T(YAFFS_TRACE_NANDACCESS, + (TSTR("Chunk %d not erased" TENDSTR), chunkInNAND)); +@@ -915,11 +918,10 @@ static int yaffs_CheckChunkErased(struct + + } + +- + static int yaffs_WriteNewChunkWithTagsToNAND(struct yaffs_DeviceStruct *dev, +- const __u8 * data, +- yaffs_ExtendedTags * tags, +- int useReserve) ++ const __u8 *data, ++ yaffs_ExtendedTags *tags, ++ int useReserve) + { + int attempts = 0; + int writeOk = 0; +@@ -972,7 +974,7 @@ static int yaffs_WriteNewChunkWithTagsTo + erasedOk = yaffs_CheckChunkErased(dev, chunk); + if (erasedOk != YAFFS_OK) { + T(YAFFS_TRACE_ERROR, +- (TSTR ("**>> yaffs chunk %d was not erased" ++ (TSTR("**>> yaffs chunk %d was not erased" + TENDSTR), chunk)); + + /* try another chunk */ +@@ -992,7 +994,11 @@ static int yaffs_WriteNewChunkWithTagsTo + /* Copy the data into the robustification buffer */ + yaffs_HandleWriteChunkOk(dev, chunk, data, tags); + +- } while (writeOk != YAFFS_OK && attempts < yaffs_wr_attempts); ++ } while (writeOk != YAFFS_OK && ++ (yaffs_wr_attempts <= 0 || attempts <= yaffs_wr_attempts)); ++ ++ if (!writeOk) ++ chunk = -1; + + if (attempts > 1) { + T(YAFFS_TRACE_ERROR, +@@ -1009,13 +1015,35 @@ static int yaffs_WriteNewChunkWithTagsTo + * Block retiring for handling a broken block. + */ + +-static void yaffs_RetireBlock(yaffs_Device * dev, int blockInNAND) ++static void yaffs_RetireBlock(yaffs_Device *dev, int blockInNAND) + { + yaffs_BlockInfo *bi = yaffs_GetBlockInfo(dev, blockInNAND); + + yaffs_InvalidateCheckpoint(dev); + +- yaffs_MarkBlockBad(dev, blockInNAND); ++ if (yaffs_MarkBlockBad(dev, blockInNAND) != YAFFS_OK) { ++ if (yaffs_EraseBlockInNAND(dev, blockInNAND) != YAFFS_OK) { ++ T(YAFFS_TRACE_ALWAYS, (TSTR( ++ "yaffs: Failed to mark bad and erase block %d" ++ TENDSTR), blockInNAND)); ++ } else { ++ yaffs_ExtendedTags tags; ++ int chunkId = blockInNAND * dev->nChunksPerBlock; ++ ++ __u8 *buffer = yaffs_GetTempBuffer(dev, __LINE__); ++ ++ memset(buffer, 0xff, dev->nDataBytesPerChunk); ++ yaffs_InitialiseTags(&tags); ++ tags.sequenceNumber = YAFFS_SEQUENCE_BAD_BLOCK; ++ if (dev->writeChunkWithTagsToNAND(dev, chunkId - ++ dev->chunkOffset, buffer, &tags) != YAFFS_OK) ++ T(YAFFS_TRACE_ALWAYS, (TSTR("yaffs: Failed to " ++ TCONT("write bad block marker to block %d") ++ TENDSTR), blockInNAND)); ++ ++ yaffs_ReleaseTempBuffer(dev, buffer, __LINE__); ++ } ++ } + + bi->blockState = YAFFS_BLOCK_STATE_DEAD; + bi->gcPrioritise = 0; +@@ -1029,49 +1057,45 @@ static void yaffs_RetireBlock(yaffs_Devi + * + */ + +-static void yaffs_HandleWriteChunkOk(yaffs_Device * dev, int chunkInNAND, +- const __u8 * data, +- const yaffs_ExtendedTags * tags) ++static void yaffs_HandleWriteChunkOk(yaffs_Device *dev, int chunkInNAND, ++ const __u8 *data, ++ const yaffs_ExtendedTags *tags) + { + } + +-static void yaffs_HandleUpdateChunk(yaffs_Device * dev, int chunkInNAND, +- const yaffs_ExtendedTags * tags) ++static void yaffs_HandleUpdateChunk(yaffs_Device *dev, int chunkInNAND, ++ const yaffs_ExtendedTags *tags) + { + } + + void yaffs_HandleChunkError(yaffs_Device *dev, yaffs_BlockInfo *bi) + { +- if(!bi->gcPrioritise){ ++ if (!bi->gcPrioritise) { + bi->gcPrioritise = 1; + dev->hasPendingPrioritisedGCs = 1; +- bi->chunkErrorStrikes ++; ++ bi->chunkErrorStrikes++; + +- if(bi->chunkErrorStrikes > 3){ ++ if (bi->chunkErrorStrikes > 3) { + bi->needsRetiring = 1; /* Too many stikes, so retire this */ + T(YAFFS_TRACE_ALWAYS, (TSTR("yaffs: Block struck out" TENDSTR))); + + } +- + } + } + +-static void yaffs_HandleWriteChunkError(yaffs_Device * dev, int chunkInNAND, int erasedOk) ++static void yaffs_HandleWriteChunkError(yaffs_Device *dev, int chunkInNAND, ++ int erasedOk) + { +- + int blockInNAND = chunkInNAND / dev->nChunksPerBlock; + yaffs_BlockInfo *bi = yaffs_GetBlockInfo(dev, blockInNAND); + +- yaffs_HandleChunkError(dev,bi); ++ yaffs_HandleChunkError(dev, bi); + +- +- if(erasedOk ) { ++ if (erasedOk) { + /* Was an actual write failure, so mark the block for retirement */ + bi->needsRetiring = 1; + T(YAFFS_TRACE_ERROR | YAFFS_TRACE_BAD_BLOCKS, + (TSTR("**>> Block %d needs retiring" TENDSTR), blockInNAND)); +- +- + } + + /* Delete the chunk */ +@@ -1081,12 +1105,12 @@ static void yaffs_HandleWriteChunkError( + + /*---------------- Name handling functions ------------*/ + +-static __u16 yaffs_CalcNameSum(const YCHAR * name) ++static __u16 yaffs_CalcNameSum(const YCHAR *name) + { + __u16 sum = 0; + __u16 i = 1; + +- YUCHAR *bname = (YUCHAR *) name; ++ const YUCHAR *bname = (const YUCHAR *) name; + if (bname) { + while ((*bname) && (i < (YAFFS_MAX_NAME_LENGTH/2))) { + +@@ -1102,14 +1126,14 @@ static __u16 yaffs_CalcNameSum(const YCH + return sum; + } + +-static void yaffs_SetObjectName(yaffs_Object * obj, const YCHAR * name) ++static void yaffs_SetObjectName(yaffs_Object *obj, const YCHAR *name) + { + #ifdef CONFIG_YAFFS_SHORT_NAMES_IN_RAM +- if (name && yaffs_strlen(name) <= YAFFS_SHORT_NAME_LENGTH) { ++ memset(obj->shortName, 0, sizeof(YCHAR) * (YAFFS_SHORT_NAME_LENGTH+1)); ++ if (name && yaffs_strlen(name) <= YAFFS_SHORT_NAME_LENGTH) + yaffs_strcpy(obj->shortName, name); +- } else { ++ else + obj->shortName[0] = _Y('\0'); +- } + #endif + obj->sum = yaffs_CalcNameSum(name); + } +@@ -1126,7 +1150,7 @@ static void yaffs_SetObjectName(yaffs_Ob + * Don't use this function directly + */ + +-static int yaffs_CreateTnodes(yaffs_Device * dev, int nTnodes) ++static int yaffs_CreateTnodes(yaffs_Device *dev, int nTnodes) + { + int i; + int tnodeSize; +@@ -1143,6 +1167,9 @@ static int yaffs_CreateTnodes(yaffs_Devi + * Must be a multiple of 32-bits */ + tnodeSize = (dev->tnodeWidth * YAFFS_NTNODES_LEVEL0)/8; + ++ if (tnodeSize < sizeof(yaffs_Tnode)) ++ tnodeSize = sizeof(yaffs_Tnode); ++ + /* make these things */ + + newTnodes = YMALLOC(nTnodes * tnodeSize); +@@ -1150,7 +1177,7 @@ static int yaffs_CreateTnodes(yaffs_Devi + + if (!newTnodes) { + T(YAFFS_TRACE_ERROR, +- (TSTR("yaffs: Could not allocate Tnodes" TENDSTR))); ++ (TSTR("yaffs: Could not allocate Tnodes" TENDSTR))); + return YAFFS_FAIL; + } + +@@ -1170,7 +1197,7 @@ static int yaffs_CreateTnodes(yaffs_Devi + dev->freeTnodes = newTnodes; + #else + /* New hookup for wide tnodes */ +- for(i = 0; i < nTnodes -1; i++) { ++ for (i = 0; i < nTnodes - 1; i++) { + curr = (yaffs_Tnode *) &mem[i * tnodeSize]; + next = (yaffs_Tnode *) &mem[(i+1) * tnodeSize]; + curr->internal[0] = next; +@@ -1197,7 +1224,6 @@ static int yaffs_CreateTnodes(yaffs_Devi + (TSTR + ("yaffs: Could not add tnodes to management list" TENDSTR))); + return YAFFS_FAIL; +- + } else { + tnl->tnodes = newTnodes; + tnl->next = dev->allocatedTnodeList; +@@ -1211,14 +1237,13 @@ static int yaffs_CreateTnodes(yaffs_Devi + + /* GetTnode gets us a clean tnode. Tries to make allocate more if we run out */ + +-static yaffs_Tnode *yaffs_GetTnodeRaw(yaffs_Device * dev) ++static yaffs_Tnode *yaffs_GetTnodeRaw(yaffs_Device *dev) + { + yaffs_Tnode *tn = NULL; + + /* If there are none left make more */ +- if (!dev->freeTnodes) { ++ if (!dev->freeTnodes) + yaffs_CreateTnodes(dev, YAFFS_ALLOCATION_NTNODES); +- } + + if (dev->freeTnodes) { + tn = dev->freeTnodes; +@@ -1233,21 +1258,27 @@ static yaffs_Tnode *yaffs_GetTnodeRaw(ya + dev->nFreeTnodes--; + } + ++ dev->nCheckpointBlocksRequired = 0; /* force recalculation*/ ++ + return tn; + } + +-static yaffs_Tnode *yaffs_GetTnode(yaffs_Device * dev) ++static yaffs_Tnode *yaffs_GetTnode(yaffs_Device *dev) + { + yaffs_Tnode *tn = yaffs_GetTnodeRaw(dev); ++ int tnodeSize = (dev->tnodeWidth * YAFFS_NTNODES_LEVEL0)/8; + +- if(tn) +- memset(tn, 0, (dev->tnodeWidth * YAFFS_NTNODES_LEVEL0)/8); ++ if (tnodeSize < sizeof(yaffs_Tnode)) ++ tnodeSize = sizeof(yaffs_Tnode); ++ ++ if (tn) ++ memset(tn, 0, tnodeSize); + + return tn; + } + + /* FreeTnode frees up a tnode and puts it back on the free list */ +-static void yaffs_FreeTnode(yaffs_Device * dev, yaffs_Tnode * tn) ++static void yaffs_FreeTnode(yaffs_Device *dev, yaffs_Tnode *tn) + { + if (tn) { + #ifdef CONFIG_YAFFS_TNODE_LIST_DEBUG +@@ -1262,9 +1293,10 @@ static void yaffs_FreeTnode(yaffs_Device + dev->freeTnodes = tn; + dev->nFreeTnodes++; + } ++ dev->nCheckpointBlocksRequired = 0; /* force recalculation*/ + } + +-static void yaffs_DeinitialiseTnodes(yaffs_Device * dev) ++static void yaffs_DeinitialiseTnodes(yaffs_Device *dev) + { + /* Free the list of allocated tnodes */ + yaffs_TnodeList *tmp; +@@ -1282,71 +1314,72 @@ static void yaffs_DeinitialiseTnodes(yaf + dev->nFreeTnodes = 0; + } + +-static void yaffs_InitialiseTnodes(yaffs_Device * dev) ++static void yaffs_InitialiseTnodes(yaffs_Device *dev) + { + dev->allocatedTnodeList = NULL; + dev->freeTnodes = NULL; + dev->nFreeTnodes = 0; + dev->nTnodesCreated = 0; +- + } + + +-void yaffs_PutLevel0Tnode(yaffs_Device *dev, yaffs_Tnode *tn, unsigned pos, unsigned val) ++void yaffs_PutLevel0Tnode(yaffs_Device *dev, yaffs_Tnode *tn, unsigned pos, ++ unsigned val) + { +- __u32 *map = (__u32 *)tn; +- __u32 bitInMap; +- __u32 bitInWord; +- __u32 wordInMap; +- __u32 mask; ++ __u32 *map = (__u32 *)tn; ++ __u32 bitInMap; ++ __u32 bitInWord; ++ __u32 wordInMap; ++ __u32 mask; + +- pos &= YAFFS_TNODES_LEVEL0_MASK; +- val >>= dev->chunkGroupBits; ++ pos &= YAFFS_TNODES_LEVEL0_MASK; ++ val >>= dev->chunkGroupBits; + +- bitInMap = pos * dev->tnodeWidth; +- wordInMap = bitInMap /32; +- bitInWord = bitInMap & (32 -1); ++ bitInMap = pos * dev->tnodeWidth; ++ wordInMap = bitInMap / 32; ++ bitInWord = bitInMap & (32 - 1); + +- mask = dev->tnodeMask << bitInWord; ++ mask = dev->tnodeMask << bitInWord; + +- map[wordInMap] &= ~mask; +- map[wordInMap] |= (mask & (val << bitInWord)); ++ map[wordInMap] &= ~mask; ++ map[wordInMap] |= (mask & (val << bitInWord)); + +- if(dev->tnodeWidth > (32-bitInWord)) { +- bitInWord = (32 - bitInWord); +- wordInMap++;; +- mask = dev->tnodeMask >> (/*dev->tnodeWidth -*/ bitInWord); +- map[wordInMap] &= ~mask; +- map[wordInMap] |= (mask & (val >> bitInWord)); +- } ++ if (dev->tnodeWidth > (32 - bitInWord)) { ++ bitInWord = (32 - bitInWord); ++ wordInMap++;; ++ mask = dev->tnodeMask >> (/*dev->tnodeWidth -*/ bitInWord); ++ map[wordInMap] &= ~mask; ++ map[wordInMap] |= (mask & (val >> bitInWord)); ++ } + } + +-static __u32 yaffs_GetChunkGroupBase(yaffs_Device *dev, yaffs_Tnode *tn, unsigned pos) ++static __u32 yaffs_GetChunkGroupBase(yaffs_Device *dev, yaffs_Tnode *tn, ++ unsigned pos) + { +- __u32 *map = (__u32 *)tn; +- __u32 bitInMap; +- __u32 bitInWord; +- __u32 wordInMap; +- __u32 val; ++ __u32 *map = (__u32 *)tn; ++ __u32 bitInMap; ++ __u32 bitInWord; ++ __u32 wordInMap; ++ __u32 val; + +- pos &= YAFFS_TNODES_LEVEL0_MASK; ++ pos &= YAFFS_TNODES_LEVEL0_MASK; + +- bitInMap = pos * dev->tnodeWidth; +- wordInMap = bitInMap /32; +- bitInWord = bitInMap & (32 -1); ++ bitInMap = pos * dev->tnodeWidth; ++ wordInMap = bitInMap / 32; ++ bitInWord = bitInMap & (32 - 1); + +- val = map[wordInMap] >> bitInWord; ++ val = map[wordInMap] >> bitInWord; + +- if(dev->tnodeWidth > (32-bitInWord)) { +- bitInWord = (32 - bitInWord); +- wordInMap++;; +- val |= (map[wordInMap] << bitInWord); +- } ++ if (dev->tnodeWidth > (32 - bitInWord)) { ++ bitInWord = (32 - bitInWord); ++ wordInMap++;; ++ val |= (map[wordInMap] << bitInWord); ++ } + +- val &= dev->tnodeMask; +- val <<= dev->chunkGroupBits; ++ val &= dev->tnodeMask; ++ val <<= dev->chunkGroupBits; + +- return val; ++ return val; + } + + /* ------------------- End of individual tnode manipulation -----------------*/ +@@ -1357,24 +1390,21 @@ static __u32 yaffs_GetChunkGroupBase(yaf + */ + + /* FindLevel0Tnode finds the level 0 tnode, if one exists. */ +-static yaffs_Tnode *yaffs_FindLevel0Tnode(yaffs_Device * dev, +- yaffs_FileStructure * fStruct, +- __u32 chunkId) ++static yaffs_Tnode *yaffs_FindLevel0Tnode(yaffs_Device *dev, ++ yaffs_FileStructure *fStruct, ++ __u32 chunkId) + { +- + yaffs_Tnode *tn = fStruct->top; + __u32 i; + int requiredTallness; + int level = fStruct->topLevel; + + /* Check sane level and chunk Id */ +- if (level < 0 || level > YAFFS_TNODES_MAX_LEVEL) { ++ if (level < 0 || level > YAFFS_TNODES_MAX_LEVEL) + return NULL; +- } + +- if (chunkId > YAFFS_MAX_CHUNK_ID) { ++ if (chunkId > YAFFS_MAX_CHUNK_ID) + return NULL; +- } + + /* First check we're tall enough (ie enough topLevel) */ + +@@ -1385,22 +1415,17 @@ static yaffs_Tnode *yaffs_FindLevel0Tnod + requiredTallness++; + } + +- if (requiredTallness > fStruct->topLevel) { +- /* Not tall enough, so we can't find it, return NULL. */ +- return NULL; +- } ++ if (requiredTallness > fStruct->topLevel) ++ return NULL; /* Not tall enough, so we can't find it */ + + /* Traverse down to level 0 */ + while (level > 0 && tn) { +- tn = tn-> +- internal[(chunkId >> +- ( YAFFS_TNODES_LEVEL0_BITS + +- (level - 1) * +- YAFFS_TNODES_INTERNAL_BITS) +- ) & +- YAFFS_TNODES_INTERNAL_MASK]; ++ tn = tn->internal[(chunkId >> ++ (YAFFS_TNODES_LEVEL0_BITS + ++ (level - 1) * ++ YAFFS_TNODES_INTERNAL_BITS)) & ++ YAFFS_TNODES_INTERNAL_MASK]; + level--; +- + } + + return tn; +@@ -1417,12 +1442,11 @@ static yaffs_Tnode *yaffs_FindLevel0Tnod + * be plugged into the ttree. + */ + +-static yaffs_Tnode *yaffs_AddOrFindLevel0Tnode(yaffs_Device * dev, +- yaffs_FileStructure * fStruct, +- __u32 chunkId, +- yaffs_Tnode *passedTn) ++static yaffs_Tnode *yaffs_AddOrFindLevel0Tnode(yaffs_Device *dev, ++ yaffs_FileStructure *fStruct, ++ __u32 chunkId, ++ yaffs_Tnode *passedTn) + { +- + int requiredTallness; + int i; + int l; +@@ -1432,13 +1456,11 @@ static yaffs_Tnode *yaffs_AddOrFindLevel + + + /* Check sane level and page Id */ +- if (fStruct->topLevel < 0 || fStruct->topLevel > YAFFS_TNODES_MAX_LEVEL) { ++ if (fStruct->topLevel < 0 || fStruct->topLevel > YAFFS_TNODES_MAX_LEVEL) + return NULL; +- } + +- if (chunkId > YAFFS_MAX_CHUNK_ID) { ++ if (chunkId > YAFFS_MAX_CHUNK_ID) + return NULL; +- } + + /* First check we're tall enough (ie enough topLevel) */ + +@@ -1451,7 +1473,7 @@ static yaffs_Tnode *yaffs_AddOrFindLevel + + + if (requiredTallness > fStruct->topLevel) { +- /* Not tall enough,gotta make the tree taller */ ++ /* Not tall enough, gotta make the tree taller */ + for (i = fStruct->topLevel; i < requiredTallness; i++) { + + tn = yaffs_GetTnode(dev); +@@ -1473,27 +1495,27 @@ static yaffs_Tnode *yaffs_AddOrFindLevel + l = fStruct->topLevel; + tn = fStruct->top; + +- if(l > 0) { ++ if (l > 0) { + while (l > 0 && tn) { + x = (chunkId >> +- ( YAFFS_TNODES_LEVEL0_BITS + ++ (YAFFS_TNODES_LEVEL0_BITS + + (l - 1) * YAFFS_TNODES_INTERNAL_BITS)) & + YAFFS_TNODES_INTERNAL_MASK; + + +- if((l>1) && !tn->internal[x]){ ++ if ((l > 1) && !tn->internal[x]) { + /* Add missing non-level-zero tnode */ + tn->internal[x] = yaffs_GetTnode(dev); + +- } else if(l == 1) { ++ } else if (l == 1) { + /* Looking from level 1 at level 0 */ +- if (passedTn) { ++ if (passedTn) { + /* If we already have one, then release it.*/ +- if(tn->internal[x]) +- yaffs_FreeTnode(dev,tn->internal[x]); ++ if (tn->internal[x]) ++ yaffs_FreeTnode(dev, tn->internal[x]); + tn->internal[x] = passedTn; + +- } else if(!tn->internal[x]) { ++ } else if (!tn->internal[x]) { + /* Don't have one, none passed in */ + tn->internal[x] = yaffs_GetTnode(dev); + } +@@ -1504,31 +1526,29 @@ static yaffs_Tnode *yaffs_AddOrFindLevel + } + } else { + /* top is level 0 */ +- if(passedTn) { +- memcpy(tn,passedTn,(dev->tnodeWidth * YAFFS_NTNODES_LEVEL0)/8); +- yaffs_FreeTnode(dev,passedTn); ++ if (passedTn) { ++ memcpy(tn, passedTn, (dev->tnodeWidth * YAFFS_NTNODES_LEVEL0)/8); ++ yaffs_FreeTnode(dev, passedTn); + } + } + + return tn; + } + +-static int yaffs_FindChunkInGroup(yaffs_Device * dev, int theChunk, +- yaffs_ExtendedTags * tags, int objectId, +- int chunkInInode) ++static int yaffs_FindChunkInGroup(yaffs_Device *dev, int theChunk, ++ yaffs_ExtendedTags *tags, int objectId, ++ int chunkInInode) + { + int j; + + for (j = 0; theChunk && j < dev->chunkGroupSize; j++) { +- if (yaffs_CheckChunkBit +- (dev, theChunk / dev->nChunksPerBlock, +- theChunk % dev->nChunksPerBlock)) { ++ if (yaffs_CheckChunkBit(dev, theChunk / dev->nChunksPerBlock, ++ theChunk % dev->nChunksPerBlock)) { + yaffs_ReadChunkWithTagsFromNAND(dev, theChunk, NULL, + tags); + if (yaffs_TagsMatch(tags, objectId, chunkInInode)) { + /* found it; */ + return theChunk; +- + } + } + theChunk++; +@@ -1543,7 +1563,7 @@ static int yaffs_FindChunkInGroup(yaffs_ + * Returns 0 if it stopped early due to hitting the limit and the delete is incomplete. + */ + +-static int yaffs_DeleteWorker(yaffs_Object * in, yaffs_Tnode * tn, __u32 level, ++static int yaffs_DeleteWorker(yaffs_Object *in, yaffs_Tnode *tn, __u32 level, + int chunkOffset, int *limit) + { + int i; +@@ -1557,7 +1577,6 @@ static int yaffs_DeleteWorker(yaffs_Obje + + if (tn) { + if (level > 0) { +- + for (i = YAFFS_NTNODES_INTERNAL - 1; allDone && i >= 0; + i--) { + if (tn->internal[i]) { +@@ -1565,17 +1584,17 @@ static int yaffs_DeleteWorker(yaffs_Obje + allDone = 0; + } else { + allDone = +- yaffs_DeleteWorker(in, +- tn-> +- internal +- [i], +- level - +- 1, +- (chunkOffset ++ yaffs_DeleteWorker(in, ++ tn-> ++ internal ++ [i], ++ level - ++ 1, ++ (chunkOffset + << + YAFFS_TNODES_INTERNAL_BITS) +- + i, +- limit); ++ + i, ++ limit); + } + if (allDone) { + yaffs_FreeTnode(dev, +@@ -1584,27 +1603,25 @@ static int yaffs_DeleteWorker(yaffs_Obje + tn->internal[i] = NULL; + } + } +- + } + return (allDone) ? 1 : 0; + } else if (level == 0) { + int hitLimit = 0; + + for (i = YAFFS_NTNODES_LEVEL0 - 1; i >= 0 && !hitLimit; +- i--) { +- theChunk = yaffs_GetChunkGroupBase(dev,tn,i); ++ i--) { ++ theChunk = yaffs_GetChunkGroupBase(dev, tn, i); + if (theChunk) { + +- chunkInInode = +- (chunkOffset << +- YAFFS_TNODES_LEVEL0_BITS) + i; ++ chunkInInode = (chunkOffset << ++ YAFFS_TNODES_LEVEL0_BITS) + i; + + foundChunk = +- yaffs_FindChunkInGroup(dev, +- theChunk, +- &tags, +- in->objectId, +- chunkInInode); ++ yaffs_FindChunkInGroup(dev, ++ theChunk, ++ &tags, ++ in->objectId, ++ chunkInInode); + + if (foundChunk > 0) { + yaffs_DeleteChunk(dev, +@@ -1613,14 +1630,13 @@ static int yaffs_DeleteWorker(yaffs_Obje + in->nDataChunks--; + if (limit) { + *limit = *limit - 1; +- if (*limit <= 0) { ++ if (*limit <= 0) + hitLimit = 1; +- } + } + + } + +- yaffs_PutLevel0Tnode(dev,tn,i,0); ++ yaffs_PutLevel0Tnode(dev, tn, i, 0); + } + + } +@@ -1634,9 +1650,8 @@ static int yaffs_DeleteWorker(yaffs_Obje + + } + +-static void yaffs_SoftDeleteChunk(yaffs_Device * dev, int chunk) ++static void yaffs_SoftDeleteChunk(yaffs_Device *dev, int chunk) + { +- + yaffs_BlockInfo *theBlock; + + T(YAFFS_TRACE_DELETION, (TSTR("soft delete chunk %d" TENDSTR), chunk)); +@@ -1654,7 +1669,7 @@ static void yaffs_SoftDeleteChunk(yaffs_ + * Thus, essentially this is the same as DeleteWorker except that the chunks are soft deleted. + */ + +-static int yaffs_SoftDeleteWorker(yaffs_Object * in, yaffs_Tnode * tn, ++static int yaffs_SoftDeleteWorker(yaffs_Object *in, yaffs_Tnode *tn, + __u32 level, int chunkOffset) + { + int i; +@@ -1691,14 +1706,14 @@ static int yaffs_SoftDeleteWorker(yaffs_ + } else if (level == 0) { + + for (i = YAFFS_NTNODES_LEVEL0 - 1; i >= 0; i--) { +- theChunk = yaffs_GetChunkGroupBase(dev,tn,i); ++ theChunk = yaffs_GetChunkGroupBase(dev, tn, i); + if (theChunk) { + /* Note this does not find the real chunk, only the chunk group. + * We make an assumption that a chunk group is not larger than + * a block. + */ + yaffs_SoftDeleteChunk(dev, theChunk); +- yaffs_PutLevel0Tnode(dev,tn,i,0); ++ yaffs_PutLevel0Tnode(dev, tn, i, 0); + } + + } +@@ -1712,7 +1727,7 @@ static int yaffs_SoftDeleteWorker(yaffs_ + + } + +-static void yaffs_SoftDeleteFile(yaffs_Object * obj) ++static void yaffs_SoftDeleteFile(yaffs_Object *obj) + { + if (obj->deleted && + obj->variantType == YAFFS_OBJECT_TYPE_FILE && !obj->softDeleted) { +@@ -1746,8 +1761,8 @@ static void yaffs_SoftDeleteFile(yaffs_O + * by a special case. + */ + +-static yaffs_Tnode *yaffs_PruneWorker(yaffs_Device * dev, yaffs_Tnode * tn, +- __u32 level, int del0) ++static yaffs_Tnode *yaffs_PruneWorker(yaffs_Device *dev, yaffs_Tnode *tn, ++ __u32 level, int del0) + { + int i; + int hasData; +@@ -1763,9 +1778,8 @@ static yaffs_Tnode *yaffs_PruneWorker(ya + (i == 0) ? del0 : 1); + } + +- if (tn->internal[i]) { ++ if (tn->internal[i]) + hasData++; +- } + } + + if (hasData == 0 && del0) { +@@ -1781,8 +1795,8 @@ static yaffs_Tnode *yaffs_PruneWorker(ya + + } + +-static int yaffs_PruneFileStructure(yaffs_Device * dev, +- yaffs_FileStructure * fStruct) ++static int yaffs_PruneFileStructure(yaffs_Device *dev, ++ yaffs_FileStructure *fStruct) + { + int i; + int hasData; +@@ -1805,9 +1819,8 @@ static int yaffs_PruneFileStructure(yaff + + hasData = 0; + for (i = 1; i < YAFFS_NTNODES_INTERNAL; i++) { +- if (tn->internal[i]) { ++ if (tn->internal[i]) + hasData++; +- } + } + + if (!hasData) { +@@ -1828,7 +1841,7 @@ static int yaffs_PruneFileStructure(yaff + /* yaffs_CreateFreeObjects creates a bunch more objects and + * adds them to the object free list. + */ +-static int yaffs_CreateFreeObjects(yaffs_Device * dev, int nObjects) ++static int yaffs_CreateFreeObjects(yaffs_Device *dev, int nObjects) + { + int i; + yaffs_Object *newObjects; +@@ -1842,9 +1855,9 @@ static int yaffs_CreateFreeObjects(yaffs + list = YMALLOC(sizeof(yaffs_ObjectList)); + + if (!newObjects || !list) { +- if(newObjects) ++ if (newObjects) + YFREE(newObjects); +- if(list) ++ if (list) + YFREE(list); + T(YAFFS_TRACE_ALLOCATE, + (TSTR("yaffs: Could not allocate more objects" TENDSTR))); +@@ -1854,7 +1867,7 @@ static int yaffs_CreateFreeObjects(yaffs + /* Hook them into the free list */ + for (i = 0; i < nObjects - 1; i++) { + newObjects[i].siblings.next = +- (struct list_head *)(&newObjects[i + 1]); ++ (struct ylist_head *)(&newObjects[i + 1]); + } + + newObjects[nObjects - 1].siblings.next = (void *)dev->freeObjects; +@@ -1873,85 +1886,109 @@ static int yaffs_CreateFreeObjects(yaffs + + + /* AllocateEmptyObject gets us a clean Object. Tries to make allocate more if we run out */ +-static yaffs_Object *yaffs_AllocateEmptyObject(yaffs_Device * dev) ++static yaffs_Object *yaffs_AllocateEmptyObject(yaffs_Device *dev) + { + yaffs_Object *tn = NULL; + ++#ifdef VALGRIND_TEST ++ tn = YMALLOC(sizeof(yaffs_Object)); ++#else + /* If there are none left make more */ +- if (!dev->freeObjects) { ++ if (!dev->freeObjects) + yaffs_CreateFreeObjects(dev, YAFFS_ALLOCATION_NOBJECTS); +- } + + if (dev->freeObjects) { + tn = dev->freeObjects; + dev->freeObjects = +- (yaffs_Object *) (dev->freeObjects->siblings.next); ++ (yaffs_Object *) (dev->freeObjects->siblings.next); + dev->nFreeObjects--; +- ++ } ++#endif ++ if (tn) { + /* Now sweeten it up... */ + + memset(tn, 0, sizeof(yaffs_Object)); ++ tn->beingCreated = 1; ++ + tn->myDev = dev; +- tn->chunkId = -1; ++ tn->hdrChunk = 0; + tn->variantType = YAFFS_OBJECT_TYPE_UNKNOWN; +- INIT_LIST_HEAD(&(tn->hardLinks)); +- INIT_LIST_HEAD(&(tn->hashLink)); +- INIT_LIST_HEAD(&tn->siblings); ++ YINIT_LIST_HEAD(&(tn->hardLinks)); ++ YINIT_LIST_HEAD(&(tn->hashLink)); ++ YINIT_LIST_HEAD(&tn->siblings); ++ ++ ++ /* Now make the directory sane */ ++ if (dev->rootDir) { ++ tn->parent = dev->rootDir; ++ ylist_add(&(tn->siblings), &dev->rootDir->variant.directoryVariant.children); ++ } + + /* Add it to the lost and found directory. + * NB Can't put root or lostNFound in lostNFound so + * check if lostNFound exists first + */ +- if (dev->lostNFoundDir) { ++ if (dev->lostNFoundDir) + yaffs_AddObjectToDirectory(dev->lostNFoundDir, tn); +- } ++ ++ tn->beingCreated = 0; + } + ++ dev->nCheckpointBlocksRequired = 0; /* force recalculation*/ ++ + return tn; + } + +-static yaffs_Object *yaffs_CreateFakeDirectory(yaffs_Device * dev, int number, ++static yaffs_Object *yaffs_CreateFakeDirectory(yaffs_Device *dev, int number, + __u32 mode) + { + + yaffs_Object *obj = + yaffs_CreateNewObject(dev, number, YAFFS_OBJECT_TYPE_DIRECTORY); + if (obj) { +- obj->fake = 1; /* it is fake so it has no NAND presence... */ ++ obj->fake = 1; /* it is fake so it might have no NAND presence... */ + obj->renameAllowed = 0; /* ... and we're not allowed to rename it... */ + obj->unlinkAllowed = 0; /* ... or unlink it */ + obj->deleted = 0; + obj->unlinked = 0; + obj->yst_mode = mode; + obj->myDev = dev; +- obj->chunkId = 0; /* Not a valid chunk. */ ++ obj->hdrChunk = 0; /* Not a valid chunk. */ + } + + return obj; + + } + +-static void yaffs_UnhashObject(yaffs_Object * tn) ++static void yaffs_UnhashObject(yaffs_Object *tn) + { + int bucket; + yaffs_Device *dev = tn->myDev; + + /* If it is still linked into the bucket list, free from the list */ +- if (!list_empty(&tn->hashLink)) { +- list_del_init(&tn->hashLink); ++ if (!ylist_empty(&tn->hashLink)) { ++ ylist_del_init(&tn->hashLink); + bucket = yaffs_HashFunction(tn->objectId); + dev->objectBucket[bucket].count--; + } +- + } + + /* FreeObject frees up a Object and puts it back on the free list */ +-static void yaffs_FreeObject(yaffs_Object * tn) ++static void yaffs_FreeObject(yaffs_Object *tn) + { +- + yaffs_Device *dev = tn->myDev; + +-#ifdef __KERNEL__ ++#ifdef __KERNEL__ ++ T(YAFFS_TRACE_OS, (TSTR("FreeObject %p inode %p"TENDSTR), tn, tn->myInode)); ++#endif ++ ++ if (tn->parent) ++ YBUG(); ++ if (!ylist_empty(&tn->siblings)) ++ YBUG(); ++ ++ ++#ifdef __KERNEL__ + if (tn->myInode) { + /* We're still hooked up to a cached inode. + * Don't delete now, but mark for later deletion +@@ -1963,24 +2000,28 @@ static void yaffs_FreeObject(yaffs_Objec + + yaffs_UnhashObject(tn); + ++#ifdef VALGRIND_TEST ++ YFREE(tn); ++#else + /* Link into the free list. */ +- tn->siblings.next = (struct list_head *)(dev->freeObjects); ++ tn->siblings.next = (struct ylist_head *)(dev->freeObjects); + dev->freeObjects = tn; + dev->nFreeObjects++; ++#endif ++ dev->nCheckpointBlocksRequired = 0; /* force recalculation*/ + } + + #ifdef __KERNEL__ + +-void yaffs_HandleDeferedFree(yaffs_Object * obj) ++void yaffs_HandleDeferedFree(yaffs_Object *obj) + { +- if (obj->deferedFree) { ++ if (obj->deferedFree) + yaffs_FreeObject(obj); +- } + } + + #endif + +-static void yaffs_DeinitialiseObjects(yaffs_Device * dev) ++static void yaffs_DeinitialiseObjects(yaffs_Device *dev) + { + /* Free the list of allocated Objects */ + +@@ -1998,7 +2039,7 @@ static void yaffs_DeinitialiseObjects(ya + dev->nFreeObjects = 0; + } + +-static void yaffs_InitialiseObjects(yaffs_Device * dev) ++static void yaffs_InitialiseObjects(yaffs_Device *dev) + { + int i; + +@@ -2007,15 +2048,14 @@ static void yaffs_InitialiseObjects(yaff + dev->nFreeObjects = 0; + + for (i = 0; i < YAFFS_NOBJECT_BUCKETS; i++) { +- INIT_LIST_HEAD(&dev->objectBucket[i].list); ++ YINIT_LIST_HEAD(&dev->objectBucket[i].list); + dev->objectBucket[i].count = 0; + } +- + } + +-static int yaffs_FindNiceObjectBucket(yaffs_Device * dev) ++static int yaffs_FindNiceObjectBucket(yaffs_Device *dev) + { +- static int x = 0; ++ static int x; + int i; + int l = 999; + int lowest = 999999; +@@ -2049,7 +2089,7 @@ static int yaffs_FindNiceObjectBucket(ya + return l; + } + +-static int yaffs_CreateNewObjectNumber(yaffs_Device * dev) ++static int yaffs_CreateNewObjectNumber(yaffs_Device *dev) + { + int bucket = yaffs_FindNiceObjectBucket(dev); + +@@ -2058,7 +2098,7 @@ static int yaffs_CreateNewObjectNumber(y + */ + + int found = 0; +- struct list_head *i; ++ struct ylist_head *i; + + __u32 n = (__u32) bucket; + +@@ -2068,41 +2108,38 @@ static int yaffs_CreateNewObjectNumber(y + found = 1; + n += YAFFS_NOBJECT_BUCKETS; + if (1 || dev->objectBucket[bucket].count > 0) { +- list_for_each(i, &dev->objectBucket[bucket].list) { ++ ylist_for_each(i, &dev->objectBucket[bucket].list) { + /* If there is already one in the list */ +- if (i +- && list_entry(i, yaffs_Object, +- hashLink)->objectId == n) { ++ if (i && ylist_entry(i, yaffs_Object, ++ hashLink)->objectId == n) { + found = 0; + } + } + } + } + +- + return n; + } + +-static void yaffs_HashObject(yaffs_Object * in) ++static void yaffs_HashObject(yaffs_Object *in) + { + int bucket = yaffs_HashFunction(in->objectId); + yaffs_Device *dev = in->myDev; + +- list_add(&in->hashLink, &dev->objectBucket[bucket].list); ++ ylist_add(&in->hashLink, &dev->objectBucket[bucket].list); + dev->objectBucket[bucket].count++; +- + } + +-yaffs_Object *yaffs_FindObjectByNumber(yaffs_Device * dev, __u32 number) ++yaffs_Object *yaffs_FindObjectByNumber(yaffs_Device *dev, __u32 number) + { + int bucket = yaffs_HashFunction(number); +- struct list_head *i; ++ struct ylist_head *i; + yaffs_Object *in; + +- list_for_each(i, &dev->objectBucket[bucket].list) { ++ ylist_for_each(i, &dev->objectBucket[bucket].list) { + /* Look if it is in the list */ + if (i) { +- in = list_entry(i, yaffs_Object, hashLink); ++ in = ylist_entry(i, yaffs_Object, hashLink); + if (in->objectId == number) { + #ifdef __KERNEL__ + /* Don't tell the VFS about this one if it is defered free */ +@@ -2118,31 +2155,27 @@ yaffs_Object *yaffs_FindObjectByNumber(y + return NULL; + } + +-yaffs_Object *yaffs_CreateNewObject(yaffs_Device * dev, int number, ++yaffs_Object *yaffs_CreateNewObject(yaffs_Device *dev, int number, + yaffs_ObjectType type) + { +- + yaffs_Object *theObject; +- yaffs_Tnode *tn; ++ yaffs_Tnode *tn = NULL; + +- if (number < 0) { ++ if (number < 0) + number = yaffs_CreateNewObjectNumber(dev); +- } + + theObject = yaffs_AllocateEmptyObject(dev); +- if(!theObject) ++ if (!theObject) + return NULL; + +- if(type == YAFFS_OBJECT_TYPE_FILE){ ++ if (type == YAFFS_OBJECT_TYPE_FILE) { + tn = yaffs_GetTnode(dev); +- if(!tn){ ++ if (!tn) { + yaffs_FreeObject(theObject); + return NULL; + } + } + +- +- + if (theObject) { + theObject->fake = 0; + theObject->renameAllowed = 1; +@@ -2171,8 +2204,8 @@ yaffs_Object *yaffs_CreateNewObject(yaff + theObject->variant.fileVariant.top = tn; + break; + case YAFFS_OBJECT_TYPE_DIRECTORY: +- INIT_LIST_HEAD(&theObject->variant.directoryVariant. +- children); ++ YINIT_LIST_HEAD(&theObject->variant.directoryVariant. ++ children); + break; + case YAFFS_OBJECT_TYPE_SYMLINK: + case YAFFS_OBJECT_TYPE_HARDLINK: +@@ -2188,32 +2221,30 @@ yaffs_Object *yaffs_CreateNewObject(yaff + return theObject; + } + +-static yaffs_Object *yaffs_FindOrCreateObjectByNumber(yaffs_Device * dev, ++static yaffs_Object *yaffs_FindOrCreateObjectByNumber(yaffs_Device *dev, + int number, + yaffs_ObjectType type) + { + yaffs_Object *theObject = NULL; + +- if (number > 0) { ++ if (number > 0) + theObject = yaffs_FindObjectByNumber(dev, number); +- } + +- if (!theObject) { ++ if (!theObject) + theObject = yaffs_CreateNewObject(dev, number, type); +- } + + return theObject; + + } + + +-static YCHAR *yaffs_CloneString(const YCHAR * str) ++static YCHAR *yaffs_CloneString(const YCHAR *str) + { + YCHAR *newStr = NULL; + + if (str && *str) { + newStr = YMALLOC((yaffs_strlen(str) + 1) * sizeof(YCHAR)); +- if(newStr) ++ if (newStr) + yaffs_strcpy(newStr, str); + } + +@@ -2229,29 +2260,31 @@ static YCHAR *yaffs_CloneString(const YC + */ + + static yaffs_Object *yaffs_MknodObject(yaffs_ObjectType type, +- yaffs_Object * parent, +- const YCHAR * name, ++ yaffs_Object *parent, ++ const YCHAR *name, + __u32 mode, + __u32 uid, + __u32 gid, +- yaffs_Object * equivalentObject, +- const YCHAR * aliasString, __u32 rdev) ++ yaffs_Object *equivalentObject, ++ const YCHAR *aliasString, __u32 rdev) + { + yaffs_Object *in; +- YCHAR *str; ++ YCHAR *str = NULL; + + yaffs_Device *dev = parent->myDev; + + /* Check if the entry exists. If it does then fail the call since we don't want a dup.*/ +- if (yaffs_FindObjectByName(parent, name)) { ++ if (yaffs_FindObjectByName(parent, name)) + return NULL; +- } + + in = yaffs_CreateNewObject(dev, -1, type); + +- if(type == YAFFS_OBJECT_TYPE_SYMLINK){ ++ if (!in) ++ return YAFFS_FAIL; ++ ++ if (type == YAFFS_OBJECT_TYPE_SYMLINK) { + str = yaffs_CloneString(aliasString); +- if(!str){ ++ if (!str) { + yaffs_FreeObject(in); + return NULL; + } +@@ -2260,7 +2293,7 @@ static yaffs_Object *yaffs_MknodObject(y + + + if (in) { +- in->chunkId = -1; ++ in->hdrChunk = 0; + in->valid = 1; + in->variantType = type; + +@@ -2293,10 +2326,10 @@ static yaffs_Object *yaffs_MknodObject(y + break; + case YAFFS_OBJECT_TYPE_HARDLINK: + in->variant.hardLinkVariant.equivalentObject = +- equivalentObject; ++ equivalentObject; + in->variant.hardLinkVariant.equivalentObjectId = +- equivalentObject->objectId; +- list_add(&in->hardLinks, &equivalentObject->hardLinks); ++ equivalentObject->objectId; ++ ylist_add(&in->hardLinks, &equivalentObject->hardLinks); + break; + case YAFFS_OBJECT_TYPE_FILE: + case YAFFS_OBJECT_TYPE_DIRECTORY: +@@ -2308,7 +2341,7 @@ static yaffs_Object *yaffs_MknodObject(y + + if (yaffs_UpdateObjectHeader(in, name, 0, 0, 0) < 0) { + /* Could not create the object header, fail the creation */ +- yaffs_DestroyObject(in); ++ yaffs_DeleteObject(in); + in = NULL; + } + +@@ -2317,38 +2350,38 @@ static yaffs_Object *yaffs_MknodObject(y + return in; + } + +-yaffs_Object *yaffs_MknodFile(yaffs_Object * parent, const YCHAR * name, +- __u32 mode, __u32 uid, __u32 gid) ++yaffs_Object *yaffs_MknodFile(yaffs_Object *parent, const YCHAR *name, ++ __u32 mode, __u32 uid, __u32 gid) + { + return yaffs_MknodObject(YAFFS_OBJECT_TYPE_FILE, parent, name, mode, +- uid, gid, NULL, NULL, 0); ++ uid, gid, NULL, NULL, 0); + } + +-yaffs_Object *yaffs_MknodDirectory(yaffs_Object * parent, const YCHAR * name, +- __u32 mode, __u32 uid, __u32 gid) ++yaffs_Object *yaffs_MknodDirectory(yaffs_Object *parent, const YCHAR *name, ++ __u32 mode, __u32 uid, __u32 gid) + { + return yaffs_MknodObject(YAFFS_OBJECT_TYPE_DIRECTORY, parent, name, + mode, uid, gid, NULL, NULL, 0); + } + +-yaffs_Object *yaffs_MknodSpecial(yaffs_Object * parent, const YCHAR * name, +- __u32 mode, __u32 uid, __u32 gid, __u32 rdev) ++yaffs_Object *yaffs_MknodSpecial(yaffs_Object *parent, const YCHAR *name, ++ __u32 mode, __u32 uid, __u32 gid, __u32 rdev) + { + return yaffs_MknodObject(YAFFS_OBJECT_TYPE_SPECIAL, parent, name, mode, + uid, gid, NULL, NULL, rdev); + } + +-yaffs_Object *yaffs_MknodSymLink(yaffs_Object * parent, const YCHAR * name, +- __u32 mode, __u32 uid, __u32 gid, +- const YCHAR * alias) ++yaffs_Object *yaffs_MknodSymLink(yaffs_Object *parent, const YCHAR *name, ++ __u32 mode, __u32 uid, __u32 gid, ++ const YCHAR *alias) + { + return yaffs_MknodObject(YAFFS_OBJECT_TYPE_SYMLINK, parent, name, mode, +- uid, gid, NULL, alias, 0); ++ uid, gid, NULL, alias, 0); + } + + /* yaffs_Link returns the object id of the equivalent object.*/ +-yaffs_Object *yaffs_Link(yaffs_Object * parent, const YCHAR * name, +- yaffs_Object * equivalentObject) ++yaffs_Object *yaffs_Link(yaffs_Object *parent, const YCHAR *name, ++ yaffs_Object *equivalentObject) + { + /* Get the real object in case we were fed a hard link as an equivalent object */ + equivalentObject = yaffs_GetEquivalentObject(equivalentObject); +@@ -2363,33 +2396,31 @@ yaffs_Object *yaffs_Link(yaffs_Object * + + } + +-static int yaffs_ChangeObjectName(yaffs_Object * obj, yaffs_Object * newDir, +- const YCHAR * newName, int force, int shadows) ++static int yaffs_ChangeObjectName(yaffs_Object *obj, yaffs_Object *newDir, ++ const YCHAR *newName, int force, int shadows) + { + int unlinkOp; + int deleteOp; + + yaffs_Object *existingTarget; + +- if (newDir == NULL) { ++ if (newDir == NULL) + newDir = obj->parent; /* use the old directory */ +- } + + if (newDir->variantType != YAFFS_OBJECT_TYPE_DIRECTORY) { + T(YAFFS_TRACE_ALWAYS, + (TSTR +- ("tragendy: yaffs_ChangeObjectName: newDir is not a directory" ++ ("tragedy: yaffs_ChangeObjectName: newDir is not a directory" + TENDSTR))); + YBUG(); + } + + /* TODO: Do we need this different handling for YAFFS2 and YAFFS1?? */ +- if (obj->myDev->isYaffs2) { ++ if (obj->myDev->isYaffs2) + unlinkOp = (newDir == obj->myDev->unlinkedDir); +- } else { ++ else + unlinkOp = (newDir == obj->myDev->unlinkedDir + && obj->variantType == YAFFS_OBJECT_TYPE_FILE); +- } + + deleteOp = (newDir == obj->myDev->deletedDir); + +@@ -2415,40 +2446,40 @@ static int yaffs_ChangeObjectName(yaffs_ + obj->unlinked = 1; + + /* If it is a deletion then we mark it as a shrink for gc purposes. */ +- if (yaffs_UpdateObjectHeader(obj, newName, 0, deleteOp, shadows)>= 0) ++ if (yaffs_UpdateObjectHeader(obj, newName, 0, deleteOp, shadows) >= 0) + return YAFFS_OK; + } + + return YAFFS_FAIL; + } + +-int yaffs_RenameObject(yaffs_Object * oldDir, const YCHAR * oldName, +- yaffs_Object * newDir, const YCHAR * newName) ++int yaffs_RenameObject(yaffs_Object *oldDir, const YCHAR *oldName, ++ yaffs_Object *newDir, const YCHAR *newName) + { +- yaffs_Object *obj; +- yaffs_Object *existingTarget; ++ yaffs_Object *obj = NULL; ++ yaffs_Object *existingTarget = NULL; + int force = 0; + ++ ++ if (!oldDir || oldDir->variantType != YAFFS_OBJECT_TYPE_DIRECTORY) ++ YBUG(); ++ if (!newDir || newDir->variantType != YAFFS_OBJECT_TYPE_DIRECTORY) ++ YBUG(); ++ + #ifdef CONFIG_YAFFS_CASE_INSENSITIVE + /* Special case for case insemsitive systems (eg. WinCE). + * While look-up is case insensitive, the name isn't. + * Therefore we might want to change x.txt to X.txt + */ +- if (oldDir == newDir && yaffs_strcmp(oldName, newName) == 0) { ++ if (oldDir == newDir && yaffs_strcmp(oldName, newName) == 0) + force = 1; +- } + #endif + ++ else if (yaffs_strlen(newName) > YAFFS_MAX_NAME_LENGTH) ++ /* ENAMETOOLONG */ ++ return YAFFS_FAIL; ++ + obj = yaffs_FindObjectByName(oldDir, oldName); +- /* Check new name to long. */ +- if (obj->variantType == YAFFS_OBJECT_TYPE_SYMLINK && +- yaffs_strlen(newName) > YAFFS_MAX_ALIAS_LENGTH) +- /* ENAMETOOLONG */ +- return YAFFS_FAIL; +- else if (obj->variantType != YAFFS_OBJECT_TYPE_SYMLINK && +- yaffs_strlen(newName) > YAFFS_MAX_NAME_LENGTH) +- /* ENAMETOOLONG */ +- return YAFFS_FAIL; + + if (obj && obj->renameAllowed) { + +@@ -2456,8 +2487,8 @@ int yaffs_RenameObject(yaffs_Object * ol + + existingTarget = yaffs_FindObjectByName(newDir, newName); + if (existingTarget && +- existingTarget->variantType == YAFFS_OBJECT_TYPE_DIRECTORY && +- !list_empty(&existingTarget->variant.directoryVariant.children)) { ++ existingTarget->variantType == YAFFS_OBJECT_TYPE_DIRECTORY && ++ !ylist_empty(&existingTarget->variant.directoryVariant.children)) { + /* There is a target that is a non-empty directory, so we fail */ + return YAFFS_FAIL; /* EEXIST or ENOTEMPTY */ + } else if (existingTarget && existingTarget != obj) { +@@ -2465,7 +2496,7 @@ int yaffs_RenameObject(yaffs_Object * ol + * but only if it isn't the same object + */ + yaffs_ChangeObjectName(obj, newDir, newName, force, +- existingTarget->objectId); ++ existingTarget->objectId); + yaffs_UnlinkObject(existingTarget); + } + +@@ -2476,7 +2507,7 @@ int yaffs_RenameObject(yaffs_Object * ol + + /*------------------------- Block Management and Page Allocation ----------------*/ + +-static int yaffs_InitialiseBlocks(yaffs_Device * dev) ++static int yaffs_InitialiseBlocks(yaffs_Device *dev) + { + int nBlocks = dev->internalEndBlock - dev->internalStartBlock + 1; + +@@ -2487,23 +2518,20 @@ static int yaffs_InitialiseBlocks(yaffs_ + + /* If the first allocation strategy fails, thry the alternate one */ + dev->blockInfo = YMALLOC(nBlocks * sizeof(yaffs_BlockInfo)); +- if(!dev->blockInfo){ ++ if (!dev->blockInfo) { + dev->blockInfo = YMALLOC_ALT(nBlocks * sizeof(yaffs_BlockInfo)); + dev->blockInfoAlt = 1; +- } +- else ++ } else + dev->blockInfoAlt = 0; + +- if(dev->blockInfo){ +- ++ if (dev->blockInfo) { + /* Set up dynamic blockinfo stuff. */ + dev->chunkBitmapStride = (dev->nChunksPerBlock + 7) / 8; /* round up bytes */ + dev->chunkBits = YMALLOC(dev->chunkBitmapStride * nBlocks); +- if(!dev->chunkBits){ ++ if (!dev->chunkBits) { + dev->chunkBits = YMALLOC_ALT(dev->chunkBitmapStride * nBlocks); + dev->chunkBitsAlt = 1; +- } +- else ++ } else + dev->chunkBitsAlt = 0; + } + +@@ -2514,30 +2542,29 @@ static int yaffs_InitialiseBlocks(yaffs_ + } + + return YAFFS_FAIL; +- + } + +-static void yaffs_DeinitialiseBlocks(yaffs_Device * dev) ++static void yaffs_DeinitialiseBlocks(yaffs_Device *dev) + { +- if(dev->blockInfoAlt && dev->blockInfo) ++ if (dev->blockInfoAlt && dev->blockInfo) + YFREE_ALT(dev->blockInfo); +- else if(dev->blockInfo) ++ else if (dev->blockInfo) + YFREE(dev->blockInfo); + + dev->blockInfoAlt = 0; + + dev->blockInfo = NULL; + +- if(dev->chunkBitsAlt && dev->chunkBits) ++ if (dev->chunkBitsAlt && dev->chunkBits) + YFREE_ALT(dev->chunkBits); +- else if(dev->chunkBits) ++ else if (dev->chunkBits) + YFREE(dev->chunkBits); + dev->chunkBitsAlt = 0; + dev->chunkBits = NULL; + } + +-static int yaffs_BlockNotDisqualifiedFromGC(yaffs_Device * dev, +- yaffs_BlockInfo * bi) ++static int yaffs_BlockNotDisqualifiedFromGC(yaffs_Device *dev, ++ yaffs_BlockInfo *bi) + { + int i; + __u32 seq; +@@ -2556,7 +2583,7 @@ static int yaffs_BlockNotDisqualifiedFro + seq = dev->sequenceNumber; + + for (i = dev->internalStartBlock; i <= dev->internalEndBlock; +- i++) { ++ i++) { + b = yaffs_GetBlockInfo(dev, i); + if (b->blockState == YAFFS_BLOCK_STATE_FULL && + (b->pagesInUse - b->softDeletions) < +@@ -2571,38 +2598,36 @@ static int yaffs_BlockNotDisqualifiedFro + * discarded pages. + */ + return (bi->sequenceNumber <= dev->oldestDirtySequence); +- + } + + /* FindDiretiestBlock is used to select the dirtiest block (or close enough) + * for garbage collection. + */ + +-static int yaffs_FindBlockForGarbageCollection(yaffs_Device * dev, +- int aggressive) ++static int yaffs_FindBlockForGarbageCollection(yaffs_Device *dev, ++ int aggressive) + { +- + int b = dev->currentDirtyChecker; + + int i; + int iterations; + int dirtiest = -1; + int pagesInUse = 0; +- int prioritised=0; ++ int prioritised = 0; + yaffs_BlockInfo *bi; + int pendingPrioritisedExist = 0; + + /* First let's see if we need to grab a prioritised block */ +- if(dev->hasPendingPrioritisedGCs){ +- for(i = dev->internalStartBlock; i < dev->internalEndBlock && !prioritised; i++){ ++ if (dev->hasPendingPrioritisedGCs) { ++ for (i = dev->internalStartBlock; i < dev->internalEndBlock && !prioritised; i++) { + + bi = yaffs_GetBlockInfo(dev, i); +- //yaffs_VerifyBlock(dev,bi,i); ++ /* yaffs_VerifyBlock(dev,bi,i); */ + +- if(bi->gcPrioritise) { ++ if (bi->gcPrioritise) { + pendingPrioritisedExist = 1; +- if(bi->blockState == YAFFS_BLOCK_STATE_FULL && +- yaffs_BlockNotDisqualifiedFromGC(dev, bi)){ ++ if (bi->blockState == YAFFS_BLOCK_STATE_FULL && ++ yaffs_BlockNotDisqualifiedFromGC(dev, bi)) { + pagesInUse = (bi->pagesInUse - bi->softDeletions); + dirtiest = i; + prioritised = 1; +@@ -2611,7 +2636,7 @@ static int yaffs_FindBlockForGarbageColl + } + } + +- if(!pendingPrioritisedExist) /* None found, so we can clear this */ ++ if (!pendingPrioritisedExist) /* None found, so we can clear this */ + dev->hasPendingPrioritisedGCs = 0; + } + +@@ -2623,31 +2648,28 @@ static int yaffs_FindBlockForGarbageColl + + dev->nonAggressiveSkip--; + +- if (!aggressive && (dev->nonAggressiveSkip > 0)) { ++ if (!aggressive && (dev->nonAggressiveSkip > 0)) + return -1; +- } + +- if(!prioritised) ++ if (!prioritised) + pagesInUse = +- (aggressive) ? dev->nChunksPerBlock : YAFFS_PASSIVE_GC_CHUNKS + 1; ++ (aggressive) ? dev->nChunksPerBlock : YAFFS_PASSIVE_GC_CHUNKS + 1; + +- if (aggressive) { ++ if (aggressive) + iterations = + dev->internalEndBlock - dev->internalStartBlock + 1; +- } else { ++ else { + iterations = + dev->internalEndBlock - dev->internalStartBlock + 1; + iterations = iterations / 16; +- if (iterations > 200) { ++ if (iterations > 200) + iterations = 200; +- } + } + + for (i = 0; i <= iterations && pagesInUse > 0 && !prioritised; i++) { + b++; +- if (b < dev->internalStartBlock || b > dev->internalEndBlock) { ++ if (b < dev->internalStartBlock || b > dev->internalEndBlock) + b = dev->internalStartBlock; +- } + + if (b < dev->internalStartBlock || b > dev->internalEndBlock) { + T(YAFFS_TRACE_ERROR, +@@ -2657,17 +2679,9 @@ static int yaffs_FindBlockForGarbageColl + + bi = yaffs_GetBlockInfo(dev, b); + +-#if 0 +- if (bi->blockState == YAFFS_BLOCK_STATE_CHECKPOINT) { +- dirtiest = b; +- pagesInUse = 0; +- } +- else +-#endif +- + if (bi->blockState == YAFFS_BLOCK_STATE_FULL && +- (bi->pagesInUse - bi->softDeletions) < pagesInUse && +- yaffs_BlockNotDisqualifiedFromGC(dev, bi)) { ++ (bi->pagesInUse - bi->softDeletions) < pagesInUse && ++ yaffs_BlockNotDisqualifiedFromGC(dev, bi)) { + dirtiest = b; + pagesInUse = (bi->pagesInUse - bi->softDeletions); + } +@@ -2678,19 +2692,18 @@ static int yaffs_FindBlockForGarbageColl + if (dirtiest > 0) { + T(YAFFS_TRACE_GC, + (TSTR("GC Selected block %d with %d free, prioritised:%d" TENDSTR), dirtiest, +- dev->nChunksPerBlock - pagesInUse,prioritised)); ++ dev->nChunksPerBlock - pagesInUse, prioritised)); + } + + dev->oldestDirtySequence = 0; + +- if (dirtiest > 0) { ++ if (dirtiest > 0) + dev->nonAggressiveSkip = 4; +- } + + return dirtiest; + } + +-static void yaffs_BlockBecameDirty(yaffs_Device * dev, int blockNo) ++static void yaffs_BlockBecameDirty(yaffs_Device *dev, int blockNo) + { + yaffs_BlockInfo *bi = yaffs_GetBlockInfo(dev, blockNo); + +@@ -2752,7 +2765,7 @@ static void yaffs_BlockBecameDirty(yaffs + } + } + +-static int yaffs_FindBlockForAllocation(yaffs_Device * dev) ++static int yaffs_FindBlockForAllocation(yaffs_Device *dev) + { + int i; + +@@ -2763,7 +2776,7 @@ static int yaffs_FindBlockForAllocation( + * Can't get space to gc + */ + T(YAFFS_TRACE_ERROR, +- (TSTR("yaffs tragedy: no more eraased blocks" TENDSTR))); ++ (TSTR("yaffs tragedy: no more erased blocks" TENDSTR))); + + return -1; + } +@@ -2794,31 +2807,74 @@ static int yaffs_FindBlockForAllocation( + + T(YAFFS_TRACE_ALWAYS, + (TSTR +- ("yaffs tragedy: no more eraased blocks, but there should have been %d" ++ ("yaffs tragedy: no more erased blocks, but there should have been %d" + TENDSTR), dev->nErasedBlocks)); + + return -1; + } + + +-// Check if there's space to allocate... +-// Thinks.... do we need top make this ths same as yaffs_GetFreeChunks()? +-static int yaffs_CheckSpaceForAllocation(yaffs_Device * dev) ++ ++static int yaffs_CalcCheckpointBlocksRequired(yaffs_Device *dev) ++{ ++ if (!dev->nCheckpointBlocksRequired && ++ dev->isYaffs2) { ++ /* Not a valid value so recalculate */ ++ int nBytes = 0; ++ int nBlocks; ++ int devBlocks = (dev->endBlock - dev->startBlock + 1); ++ int tnodeSize; ++ ++ tnodeSize = (dev->tnodeWidth * YAFFS_NTNODES_LEVEL0)/8; ++ ++ if (tnodeSize < sizeof(yaffs_Tnode)) ++ tnodeSize = sizeof(yaffs_Tnode); ++ ++ nBytes += sizeof(yaffs_CheckpointValidity); ++ nBytes += sizeof(yaffs_CheckpointDevice); ++ nBytes += devBlocks * sizeof(yaffs_BlockInfo); ++ nBytes += devBlocks * dev->chunkBitmapStride; ++ nBytes += (sizeof(yaffs_CheckpointObject) + sizeof(__u32)) * (dev->nObjectsCreated - dev->nFreeObjects); ++ nBytes += (tnodeSize + sizeof(__u32)) * (dev->nTnodesCreated - dev->nFreeTnodes); ++ nBytes += sizeof(yaffs_CheckpointValidity); ++ nBytes += sizeof(__u32); /* checksum*/ ++ ++ /* Round up and add 2 blocks to allow for some bad blocks, so add 3 */ ++ ++ nBlocks = (nBytes/(dev->nDataBytesPerChunk * dev->nChunksPerBlock)) + 3; ++ ++ dev->nCheckpointBlocksRequired = nBlocks; ++ } ++ ++ return dev->nCheckpointBlocksRequired; ++} ++ ++/* ++ * Check if there's space to allocate... ++ * Thinks.... do we need top make this ths same as yaffs_GetFreeChunks()? ++ */ ++static int yaffs_CheckSpaceForAllocation(yaffs_Device *dev) + { + int reservedChunks; + int reservedBlocks = dev->nReservedBlocks; + int checkpointBlocks; + +- checkpointBlocks = dev->nCheckpointReservedBlocks - dev->blocksInCheckpoint; +- if(checkpointBlocks < 0) ++ if (dev->isYaffs2) { ++ checkpointBlocks = yaffs_CalcCheckpointBlocksRequired(dev) - ++ dev->blocksInCheckpoint; ++ if (checkpointBlocks < 0) ++ checkpointBlocks = 0; ++ } else { + checkpointBlocks = 0; ++ } + + reservedChunks = ((reservedBlocks + checkpointBlocks) * dev->nChunksPerBlock); + + return (dev->nFreeChunks > reservedChunks); + } + +-static int yaffs_AllocateChunk(yaffs_Device * dev, int useReserve, yaffs_BlockInfo **blockUsedPtr) ++static int yaffs_AllocateChunk(yaffs_Device *dev, int useReserve, ++ yaffs_BlockInfo **blockUsedPtr) + { + int retVal; + yaffs_BlockInfo *bi; +@@ -2835,7 +2891,7 @@ static int yaffs_AllocateChunk(yaffs_Dev + } + + if (dev->nErasedBlocks < dev->nReservedBlocks +- && dev->allocationPage == 0) { ++ && dev->allocationPage == 0) { + T(YAFFS_TRACE_ALLOCATE, (TSTR("Allocating reserve" TENDSTR))); + } + +@@ -2844,10 +2900,10 @@ static int yaffs_AllocateChunk(yaffs_Dev + bi = yaffs_GetBlockInfo(dev, dev->allocationBlock); + + retVal = (dev->allocationBlock * dev->nChunksPerBlock) + +- dev->allocationPage; ++ dev->allocationPage; + bi->pagesInUse++; + yaffs_SetChunkBit(dev, dev->allocationBlock, +- dev->allocationPage); ++ dev->allocationPage); + + dev->allocationPage++; + +@@ -2859,43 +2915,43 @@ static int yaffs_AllocateChunk(yaffs_Dev + dev->allocationBlock = -1; + } + +- if(blockUsedPtr) ++ if (blockUsedPtr) + *blockUsedPtr = bi; + + return retVal; + } + + T(YAFFS_TRACE_ERROR, +- (TSTR("!!!!!!!!! Allocator out !!!!!!!!!!!!!!!!!" TENDSTR))); ++ (TSTR("!!!!!!!!! Allocator out !!!!!!!!!!!!!!!!!" TENDSTR))); + + return -1; + } + +-static int yaffs_GetErasedChunks(yaffs_Device * dev) ++static int yaffs_GetErasedChunks(yaffs_Device *dev) + { + int n; + + n = dev->nErasedBlocks * dev->nChunksPerBlock; + +- if (dev->allocationBlock > 0) { ++ if (dev->allocationBlock > 0) + n += (dev->nChunksPerBlock - dev->allocationPage); +- } + + return n; + + } + +-static int yaffs_GarbageCollectBlock(yaffs_Device * dev, int block) ++static int yaffs_GarbageCollectBlock(yaffs_Device *dev, int block, ++ int wholeBlock) + { + int oldChunk; + int newChunk; +- int chunkInBlock; + int markNAND; + int retVal = YAFFS_OK; + int cleanups = 0; + int i; + int isCheckpointBlock; + int matchingChunk; ++ int maxCopies; + + int chunksBefore = yaffs_GetErasedChunks(dev); + int chunksAfter; +@@ -2911,8 +2967,11 @@ static int yaffs_GarbageCollectBlock(yaf + bi->blockState = YAFFS_BLOCK_STATE_COLLECTING; + + T(YAFFS_TRACE_TRACING, +- (TSTR("Collecting block %d, in use %d, shrink %d, " TENDSTR), block, +- bi->pagesInUse, bi->hasShrinkHeader)); ++ (TSTR("Collecting block %d, in use %d, shrink %d, wholeBlock %d" TENDSTR), ++ block, ++ bi->pagesInUse, ++ bi->hasShrinkHeader, ++ wholeBlock)); + + /*yaffs_VerifyFreeChunks(dev); */ + +@@ -2926,26 +2985,33 @@ static int yaffs_GarbageCollectBlock(yaf + dev->isDoingGC = 1; + + if (isCheckpointBlock || +- !yaffs_StillSomeChunkBits(dev, block)) { ++ !yaffs_StillSomeChunkBits(dev, block)) { + T(YAFFS_TRACE_TRACING, +- (TSTR +- ("Collecting block %d that has no chunks in use" TENDSTR), +- block)); ++ (TSTR ++ ("Collecting block %d that has no chunks in use" TENDSTR), ++ block)); + yaffs_BlockBecameDirty(dev, block); + } else { + + __u8 *buffer = yaffs_GetTempBuffer(dev, __LINE__); + +- yaffs_VerifyBlock(dev,bi,block); ++ yaffs_VerifyBlock(dev, bi, block); + +- for (chunkInBlock = 0, oldChunk = block * dev->nChunksPerBlock; +- chunkInBlock < dev->nChunksPerBlock +- && yaffs_StillSomeChunkBits(dev, block); +- chunkInBlock++, oldChunk++) { +- if (yaffs_CheckChunkBit(dev, block, chunkInBlock)) { ++ maxCopies = (wholeBlock) ? dev->nChunksPerBlock : 10; ++ oldChunk = block * dev->nChunksPerBlock + dev->gcChunk; ++ ++ for (/* init already done */; ++ retVal == YAFFS_OK && ++ dev->gcChunk < dev->nChunksPerBlock && ++ (bi->blockState == YAFFS_BLOCK_STATE_COLLECTING) && ++ maxCopies > 0; ++ dev->gcChunk++, oldChunk++) { ++ if (yaffs_CheckChunkBit(dev, block, dev->gcChunk)) { + + /* This page is in use and might need to be copied off */ + ++ maxCopies--; ++ + markNAND = 1; + + yaffs_InitialiseTags(&tags); +@@ -2959,22 +3025,22 @@ static int yaffs_GarbageCollectBlock(yaf + + T(YAFFS_TRACE_GC_DETAIL, + (TSTR +- ("Collecting page %d, %d %d %d " TENDSTR), +- chunkInBlock, tags.objectId, tags.chunkId, ++ ("Collecting chunk in block %d, %d %d %d " TENDSTR), ++ dev->gcChunk, tags.objectId, tags.chunkId, + tags.byteCount)); + +- if(object && !yaffs_SkipVerification(dev)){ +- if(tags.chunkId == 0) +- matchingChunk = object->chunkId; +- else if(object->softDeleted) ++ if (object && !yaffs_SkipVerification(dev)) { ++ if (tags.chunkId == 0) ++ matchingChunk = object->hdrChunk; ++ else if (object->softDeleted) + matchingChunk = oldChunk; /* Defeat the test */ + else +- matchingChunk = yaffs_FindChunkInFile(object,tags.chunkId,NULL); ++ matchingChunk = yaffs_FindChunkInFile(object, tags.chunkId, NULL); + +- if(oldChunk != matchingChunk) ++ if (oldChunk != matchingChunk) + T(YAFFS_TRACE_ERROR, + (TSTR("gc: page in gc mismatch: %d %d %d %d"TENDSTR), +- oldChunk,matchingChunk,tags.objectId, tags.chunkId)); ++ oldChunk, matchingChunk, tags.objectId, tags.chunkId)); + + } + +@@ -2986,9 +3052,11 @@ static int yaffs_GarbageCollectBlock(yaf + tags.objectId, tags.chunkId, tags.byteCount)); + } + +- if (object && object->deleted +- && tags.chunkId != 0) { +- /* Data chunk in a deleted file, throw it away ++ if (object && ++ object->deleted && ++ object->softDeleted && ++ tags.chunkId != 0) { ++ /* Data chunk in a soft deleted file, throw it away + * It's a soft deleted data chunk, + * No need to copy this, just forget about it and + * fix up the object. +@@ -3003,13 +3071,12 @@ static int yaffs_GarbageCollectBlock(yaf + cleanups++; + } + markNAND = 0; +- } else if (0 +- /* Todo object && object->deleted && object->nDataChunks == 0 */ +- ) { ++ } else if (0) { ++ /* Todo object && object->deleted && object->nDataChunks == 0 */ + /* Deleted object header with no data chunks. + * Can be discarded and the file deleted. + */ +- object->chunkId = 0; ++ object->hdrChunk = 0; + yaffs_FreeTnode(object->myDev, + object->variant. + fileVariant.top); +@@ -3031,17 +3098,14 @@ static int yaffs_GarbageCollectBlock(yaf + * We need to nuke the shrinkheader flags first + * We no longer want the shrinkHeader flag since its work is done + * and if it is left in place it will mess up scanning. +- * Also, clear out any shadowing stuff + */ + + yaffs_ObjectHeader *oh; + oh = (yaffs_ObjectHeader *)buffer; + oh->isShrink = 0; +- oh->shadowsObject = -1; +- tags.extraShadows = 0; + tags.extraIsShrinkHeader = 0; + +- yaffs_VerifyObjectHeader(object,oh,&tags,1); ++ yaffs_VerifyObjectHeader(object, oh, &tags, 1); + } + + newChunk = +@@ -3055,7 +3119,7 @@ static int yaffs_GarbageCollectBlock(yaf + + if (tags.chunkId == 0) { + /* It's a header */ +- object->chunkId = newChunk; ++ object->hdrChunk = newChunk; + object->serial = tags.serialNumber; + } else { + /* It's a data chunk */ +@@ -3067,7 +3131,8 @@ static int yaffs_GarbageCollectBlock(yaf + } + } + +- yaffs_DeleteChunk(dev, oldChunk, markNAND, __LINE__); ++ if (retVal == YAFFS_OK) ++ yaffs_DeleteChunk(dev, oldChunk, markNAND, __LINE__); + + } + } +@@ -3098,18 +3163,25 @@ static int yaffs_GarbageCollectBlock(yaf + + } + +- yaffs_VerifyCollectedBlock(dev,bi,block); ++ yaffs_VerifyCollectedBlock(dev, bi, block); + +- if (chunksBefore >= (chunksAfter = yaffs_GetErasedChunks(dev))) { ++ chunksAfter = yaffs_GetErasedChunks(dev); ++ if (chunksBefore >= chunksAfter) { + T(YAFFS_TRACE_GC, + (TSTR + ("gc did not increase free chunks before %d after %d" + TENDSTR), chunksBefore, chunksAfter)); + } + ++ /* If the gc completed then clear the current gcBlock so that we find another. */ ++ if (bi->blockState != YAFFS_BLOCK_STATE_COLLECTING) { ++ dev->gcBlock = -1; ++ dev->gcChunk = 0; ++ } ++ + dev->isDoingGC = 0; + +- return YAFFS_OK; ++ return retVal; + } + + /* New garbage collector +@@ -3121,7 +3193,7 @@ static int yaffs_GarbageCollectBlock(yaf + * The idea is to help clear out space in a more spread-out manner. + * Dunno if it really does anything useful. + */ +-static int yaffs_CheckGarbageCollection(yaffs_Device * dev) ++static int yaffs_CheckGarbageCollection(yaffs_Device *dev) + { + int block; + int aggressive; +@@ -3142,8 +3214,8 @@ static int yaffs_CheckGarbageCollection( + do { + maxTries++; + +- checkpointBlockAdjust = (dev->nCheckpointReservedBlocks - dev->blocksInCheckpoint); +- if(checkpointBlockAdjust < 0) ++ checkpointBlockAdjust = yaffs_CalcCheckpointBlocksRequired(dev) - dev->blocksInCheckpoint; ++ if (checkpointBlockAdjust < 0) + checkpointBlockAdjust = 0; + + if (dev->nErasedBlocks < (dev->nReservedBlocks + checkpointBlockAdjust + 2)) { +@@ -3154,20 +3226,24 @@ static int yaffs_CheckGarbageCollection( + aggressive = 0; + } + +- block = yaffs_FindBlockForGarbageCollection(dev, aggressive); ++ if (dev->gcBlock <= 0) { ++ dev->gcBlock = yaffs_FindBlockForGarbageCollection(dev, aggressive); ++ dev->gcChunk = 0; ++ } ++ ++ block = dev->gcBlock; + + if (block > 0) { + dev->garbageCollections++; +- if (!aggressive) { ++ if (!aggressive) + dev->passiveGarbageCollections++; +- } + + T(YAFFS_TRACE_GC, + (TSTR + ("yaffs: GC erasedBlocks %d aggressive %d" TENDSTR), + dev->nErasedBlocks, aggressive)); + +- gcOk = yaffs_GarbageCollectBlock(dev, block); ++ gcOk = yaffs_GarbageCollectBlock(dev, block, aggressive); + } + + if (dev->nErasedBlocks < (dev->nReservedBlocks) && block > 0) { +@@ -3176,15 +3252,16 @@ static int yaffs_CheckGarbageCollection( + ("yaffs: GC !!!no reclaim!!! erasedBlocks %d after try %d block %d" + TENDSTR), dev->nErasedBlocks, maxTries, block)); + } +- } while ((dev->nErasedBlocks < dev->nReservedBlocks) && (block > 0) +- && (maxTries < 2)); ++ } while ((dev->nErasedBlocks < dev->nReservedBlocks) && ++ (block > 0) && ++ (maxTries < 2)); + + return aggressive ? gcOk : YAFFS_OK; + } + + /*------------------------- TAGS --------------------------------*/ + +-static int yaffs_TagsMatch(const yaffs_ExtendedTags * tags, int objectId, ++static int yaffs_TagsMatch(const yaffs_ExtendedTags *tags, int objectId, + int chunkInObject) + { + return (tags->chunkId == chunkInObject && +@@ -3195,8 +3272,8 @@ static int yaffs_TagsMatch(const yaffs_E + + /*-------------------- Data file manipulation -----------------*/ + +-static int yaffs_FindChunkInFile(yaffs_Object * in, int chunkInInode, +- yaffs_ExtendedTags * tags) ++static int yaffs_FindChunkInFile(yaffs_Object *in, int chunkInInode, ++ yaffs_ExtendedTags *tags) + { + /*Get the Tnode, then get the level 0 offset chunk offset */ + yaffs_Tnode *tn; +@@ -3214,7 +3291,7 @@ static int yaffs_FindChunkInFile(yaffs_O + tn = yaffs_FindLevel0Tnode(dev, &in->variant.fileVariant, chunkInInode); + + if (tn) { +- theChunk = yaffs_GetChunkGroupBase(dev,tn,chunkInInode); ++ theChunk = yaffs_GetChunkGroupBase(dev, tn, chunkInInode); + + retVal = + yaffs_FindChunkInGroup(dev, theChunk, tags, in->objectId, +@@ -3223,8 +3300,8 @@ static int yaffs_FindChunkInFile(yaffs_O + return retVal; + } + +-static int yaffs_FindAndDeleteChunkInFile(yaffs_Object * in, int chunkInInode, +- yaffs_ExtendedTags * tags) ++static int yaffs_FindAndDeleteChunkInFile(yaffs_Object *in, int chunkInInode, ++ yaffs_ExtendedTags *tags) + { + /* Get the Tnode, then get the level 0 offset chunk offset */ + yaffs_Tnode *tn; +@@ -3243,29 +3320,23 @@ static int yaffs_FindAndDeleteChunkInFil + + if (tn) { + +- theChunk = yaffs_GetChunkGroupBase(dev,tn,chunkInInode); ++ theChunk = yaffs_GetChunkGroupBase(dev, tn, chunkInInode); + + retVal = + yaffs_FindChunkInGroup(dev, theChunk, tags, in->objectId, + chunkInInode); + + /* Delete the entry in the filestructure (if found) */ +- if (retVal != -1) { +- yaffs_PutLevel0Tnode(dev,tn,chunkInInode,0); +- } +- } else { +- /*T(("No level 0 found for %d\n", chunkInInode)); */ ++ if (retVal != -1) ++ yaffs_PutLevel0Tnode(dev, tn, chunkInInode, 0); + } + +- if (retVal == -1) { +- /* T(("Could not find %d to delete\n",chunkInInode)); */ +- } + return retVal; + } + + #ifdef YAFFS_PARANOID + +-static int yaffs_CheckFileSanity(yaffs_Object * in) ++static int yaffs_CheckFileSanity(yaffs_Object *in) + { + int chunk; + int nChunks; +@@ -3278,10 +3349,8 @@ static int yaffs_CheckFileSanity(yaffs_O + int theChunk; + int chunkDeleted; + +- if (in->variantType != YAFFS_OBJECT_TYPE_FILE) { +- /* T(("Object not a file\n")); */ ++ if (in->variantType != YAFFS_OBJECT_TYPE_FILE) + return YAFFS_FAIL; +- } + + objId = in->objectId; + fSize = in->variant.fileVariant.fileSize; +@@ -3294,7 +3363,7 @@ static int yaffs_CheckFileSanity(yaffs_O + + if (tn) { + +- theChunk = yaffs_GetChunkGroupBase(dev,tn,chunk); ++ theChunk = yaffs_GetChunkGroupBase(dev, tn, chunk); + + if (yaffs_CheckChunkBits + (dev, theChunk / dev->nChunksPerBlock, +@@ -3323,7 +3392,7 @@ static int yaffs_CheckFileSanity(yaffs_O + + #endif + +-static int yaffs_PutChunkIntoFile(yaffs_Object * in, int chunkInInode, ++static int yaffs_PutChunkIntoFile(yaffs_Object *in, int chunkInInode, + int chunkInNAND, int inScan) + { + /* NB inScan is zero unless scanning. +@@ -3358,11 +3427,10 @@ static int yaffs_PutChunkIntoFile(yaffs_ + &in->variant.fileVariant, + chunkInInode, + NULL); +- if (!tn) { ++ if (!tn) + return YAFFS_FAIL; +- } + +- existingChunk = yaffs_GetChunkGroupBase(dev,tn,chunkInInode); ++ existingChunk = yaffs_GetChunkGroupBase(dev, tn, chunkInInode); + + if (inScan != 0) { + /* If we're scanning then we need to test for duplicates +@@ -3374,7 +3442,7 @@ static int yaffs_PutChunkIntoFile(yaffs_ + * Update: For backward scanning we don't need to re-read tags so this is quite cheap. + */ + +- if (existingChunk != 0) { ++ if (existingChunk > 0) { + /* NB Right now existing chunk will not be real chunkId if the device >= 32MB + * thus we have to do a FindChunkInFile to get the real chunk id. + * +@@ -3411,8 +3479,10 @@ static int yaffs_PutChunkIntoFile(yaffs_ + * not be loaded during a scan + */ + +- newSerial = newTags.serialNumber; +- existingSerial = existingTags.serialNumber; ++ if (inScan > 0) { ++ newSerial = newTags.serialNumber; ++ existingSerial = existingTags.serialNumber; ++ } + + if ((inScan > 0) && + (in->myDev->isYaffs2 || +@@ -3437,24 +3507,23 @@ static int yaffs_PutChunkIntoFile(yaffs_ + + } + +- if (existingChunk == 0) { ++ if (existingChunk == 0) + in->nDataChunks++; +- } + +- yaffs_PutLevel0Tnode(dev,tn,chunkInInode,chunkInNAND); ++ yaffs_PutLevel0Tnode(dev, tn, chunkInInode, chunkInNAND); + + return YAFFS_OK; + } + +-static int yaffs_ReadChunkDataFromObject(yaffs_Object * in, int chunkInInode, +- __u8 * buffer) ++static int yaffs_ReadChunkDataFromObject(yaffs_Object *in, int chunkInInode, ++ __u8 *buffer) + { + int chunkInNAND = yaffs_FindChunkInFile(in, chunkInInode, NULL); + +- if (chunkInNAND >= 0) { ++ if (chunkInNAND >= 0) + return yaffs_ReadChunkWithTagsFromNAND(in->myDev, chunkInNAND, +- buffer,NULL); +- } else { ++ buffer, NULL); ++ else { + T(YAFFS_TRACE_NANDACCESS, + (TSTR("Chunk %d not found zero instead" TENDSTR), + chunkInNAND)); +@@ -3465,7 +3534,7 @@ static int yaffs_ReadChunkDataFromObject + + } + +-void yaffs_DeleteChunk(yaffs_Device * dev, int chunkId, int markNAND, int lyn) ++void yaffs_DeleteChunk(yaffs_Device *dev, int chunkId, int markNAND, int lyn) + { + int block; + int page; +@@ -3475,16 +3544,15 @@ void yaffs_DeleteChunk(yaffs_Device * de + if (chunkId <= 0) + return; + +- + dev->nDeletions++; + block = chunkId / dev->nChunksPerBlock; + page = chunkId % dev->nChunksPerBlock; + + +- if(!yaffs_CheckChunkBit(dev,block,page)) ++ if (!yaffs_CheckChunkBit(dev, block, page)) + T(YAFFS_TRACE_VERIFY, +- (TSTR("Deleting invalid chunk %d"TENDSTR), +- chunkId)); ++ (TSTR("Deleting invalid chunk %d"TENDSTR), ++ chunkId)); + + bi = yaffs_GetBlockInfo(dev, block); + +@@ -3524,14 +3592,12 @@ void yaffs_DeleteChunk(yaffs_Device * de + yaffs_BlockBecameDirty(dev, block); + } + +- } else { +- /* T(("Bad news deleting chunk %d\n",chunkId)); */ + } + + } + +-static int yaffs_WriteChunkDataToObject(yaffs_Object * in, int chunkInInode, +- const __u8 * buffer, int nBytes, ++static int yaffs_WriteChunkDataToObject(yaffs_Object *in, int chunkInInode, ++ const __u8 *buffer, int nBytes, + int useReserve) + { + /* Find old chunk Need to do this to get serial number +@@ -3561,6 +3627,12 @@ static int yaffs_WriteChunkDataToObject( + (prevChunkId >= 0) ? prevTags.serialNumber + 1 : 1; + newTags.byteCount = nBytes; + ++ if (nBytes < 1 || nBytes > dev->totalBytesPerChunk) { ++ T(YAFFS_TRACE_ERROR, ++ (TSTR("Writing %d bytes to chunk!!!!!!!!!" TENDSTR), nBytes)); ++ YBUG(); ++ } ++ + newChunkId = + yaffs_WriteNewChunkWithTagsToNAND(dev, buffer, &newTags, + useReserve); +@@ -3568,11 +3640,9 @@ static int yaffs_WriteChunkDataToObject( + if (newChunkId >= 0) { + yaffs_PutChunkIntoFile(in, chunkInInode, newChunkId, 0); + +- if (prevChunkId >= 0) { ++ if (prevChunkId >= 0) + yaffs_DeleteChunk(dev, prevChunkId, 1, __LINE__); + +- } +- + yaffs_CheckFileSanity(in); + } + return newChunkId; +@@ -3582,7 +3652,7 @@ static int yaffs_WriteChunkDataToObject( + /* UpdateObjectHeader updates the header on NAND for an object. + * If name is not NULL, then that new name is used. + */ +-int yaffs_UpdateObjectHeader(yaffs_Object * in, const YCHAR * name, int force, ++int yaffs_UpdateObjectHeader(yaffs_Object *in, const YCHAR *name, int force, + int isShrink, int shadows) + { + +@@ -3603,9 +3673,12 @@ int yaffs_UpdateObjectHeader(yaffs_Objec + + yaffs_ObjectHeader *oh = NULL; + +- yaffs_strcpy(oldName,"silly old name"); ++ yaffs_strcpy(oldName, _Y("silly old name")); + +- if (!in->fake || force) { ++ ++ if (!in->fake || ++ in == dev->rootDir || /* The rootDir should also be saved */ ++ force) { + + yaffs_CheckGarbageCollection(dev); + yaffs_CheckObjectDetailsLoaded(in); +@@ -3613,13 +3686,13 @@ int yaffs_UpdateObjectHeader(yaffs_Objec + buffer = yaffs_GetTempBuffer(in->myDev, __LINE__); + oh = (yaffs_ObjectHeader *) buffer; + +- prevChunkId = in->chunkId; ++ prevChunkId = in->hdrChunk; + +- if (prevChunkId >= 0) { ++ if (prevChunkId > 0) { + result = yaffs_ReadChunkWithTagsFromNAND(dev, prevChunkId, + buffer, &oldTags); + +- yaffs_VerifyObjectHeader(in,oh,&oldTags,0); ++ yaffs_VerifyObjectHeader(in, oh, &oldTags, 0); + + memcpy(oldName, oh->name, sizeof(oh->name)); + } +@@ -3628,7 +3701,7 @@ int yaffs_UpdateObjectHeader(yaffs_Objec + + oh->type = in->variantType; + oh->yst_mode = in->yst_mode; +- oh->shadowsObject = shadows; ++ oh->shadowsObject = oh->inbandShadowsObject = shadows; + + #ifdef CONFIG_YAFFS_WINCE + oh->win_atime[0] = in->win_atime[0]; +@@ -3645,20 +3718,18 @@ int yaffs_UpdateObjectHeader(yaffs_Objec + oh->yst_ctime = in->yst_ctime; + oh->yst_rdev = in->yst_rdev; + #endif +- if (in->parent) { ++ if (in->parent) + oh->parentObjectId = in->parent->objectId; +- } else { ++ else + oh->parentObjectId = 0; +- } + + if (name && *name) { + memset(oh->name, 0, sizeof(oh->name)); + yaffs_strncpy(oh->name, name, YAFFS_MAX_NAME_LENGTH); +- } else if (prevChunkId>=0) { ++ } else if (prevChunkId >= 0) + memcpy(oh->name, oldName, sizeof(oh->name)); +- } else { ++ else + memset(oh->name, 0, sizeof(oh->name)); +- } + + oh->isShrink = isShrink; + +@@ -3708,7 +3779,7 @@ int yaffs_UpdateObjectHeader(yaffs_Objec + newTags.extraShadows = (oh->shadowsObject > 0) ? 1 : 0; + newTags.extraObjectType = in->variantType; + +- yaffs_VerifyObjectHeader(in,oh,&newTags,1); ++ yaffs_VerifyObjectHeader(in, oh, &newTags, 1); + + /* Create new chunk in NAND */ + newChunkId = +@@ -3717,20 +3788,20 @@ int yaffs_UpdateObjectHeader(yaffs_Objec + + if (newChunkId >= 0) { + +- in->chunkId = newChunkId; ++ in->hdrChunk = newChunkId; + + if (prevChunkId >= 0) { + yaffs_DeleteChunk(dev, prevChunkId, 1, + __LINE__); + } + +- if(!yaffs_ObjectHasCachedWriteData(in)) ++ if (!yaffs_ObjectHasCachedWriteData(in)) + in->dirty = 0; + + /* If this was a shrink, then mark the block that the chunk lives on */ + if (isShrink) { + bi = yaffs_GetBlockInfo(in->myDev, +- newChunkId /in->myDev-> nChunksPerBlock); ++ newChunkId / in->myDev->nChunksPerBlock); + bi->hasShrinkHeader = 1; + } + +@@ -3766,7 +3837,7 @@ static int yaffs_ObjectHasCachedWriteDat + yaffs_ChunkCache *cache; + int nCaches = obj->myDev->nShortOpCaches; + +- for(i = 0; i < nCaches; i++){ ++ for (i = 0; i < nCaches; i++) { + cache = &dev->srCache[i]; + if (cache->object == obj && + cache->dirty) +@@ -3777,7 +3848,7 @@ static int yaffs_ObjectHasCachedWriteDat + } + + +-static void yaffs_FlushFilesChunkCache(yaffs_Object * obj) ++static void yaffs_FlushFilesChunkCache(yaffs_Object *obj) + { + yaffs_Device *dev = obj->myDev; + int lowest = -99; /* Stop compiler whining. */ +@@ -3844,16 +3915,16 @@ void yaffs_FlushEntireDeviceCache(yaffs_ + */ + do { + obj = NULL; +- for( i = 0; i < nCaches && !obj; i++) { ++ for (i = 0; i < nCaches && !obj; i++) { + if (dev->srCache[i].object && + dev->srCache[i].dirty) + obj = dev->srCache[i].object; + + } +- if(obj) ++ if (obj) + yaffs_FlushFilesChunkCache(obj); + +- } while(obj); ++ } while (obj); + + } + +@@ -3863,41 +3934,21 @@ void yaffs_FlushEntireDeviceCache(yaffs_ + * Then look for the least recently used non-dirty one. + * Then look for the least recently used dirty one...., flush and look again. + */ +-static yaffs_ChunkCache *yaffs_GrabChunkCacheWorker(yaffs_Device * dev) ++static yaffs_ChunkCache *yaffs_GrabChunkCacheWorker(yaffs_Device *dev) + { + int i; +- int usage; +- int theOne; + + if (dev->nShortOpCaches > 0) { + for (i = 0; i < dev->nShortOpCaches; i++) { + if (!dev->srCache[i].object) + return &dev->srCache[i]; + } ++ } + +- return NULL; ++ return NULL; ++} + +- theOne = -1; +- usage = 0; /* just to stop the compiler grizzling */ +- +- for (i = 0; i < dev->nShortOpCaches; i++) { +- if (!dev->srCache[i].dirty && +- ((dev->srCache[i].lastUse < usage && theOne >= 0) || +- theOne < 0)) { +- usage = dev->srCache[i].lastUse; +- theOne = i; +- } +- } +- +- +- return theOne >= 0 ? &dev->srCache[theOne] : NULL; +- } else { +- return NULL; +- } +- +-} +- +-static yaffs_ChunkCache *yaffs_GrabChunkCache(yaffs_Device * dev) ++static yaffs_ChunkCache *yaffs_GrabChunkCache(yaffs_Device *dev) + { + yaffs_ChunkCache *cache; + yaffs_Object *theObj; +@@ -3927,8 +3978,7 @@ static yaffs_ChunkCache *yaffs_GrabChunk + for (i = 0; i < dev->nShortOpCaches; i++) { + if (dev->srCache[i].object && + !dev->srCache[i].locked && +- (dev->srCache[i].lastUse < usage || !cache)) +- { ++ (dev->srCache[i].lastUse < usage || !cache)) { + usage = dev->srCache[i].lastUse; + theObj = dev->srCache[i].object; + cache = &dev->srCache[i]; +@@ -3950,7 +4000,7 @@ static yaffs_ChunkCache *yaffs_GrabChunk + } + + /* Find a cached chunk */ +-static yaffs_ChunkCache *yaffs_FindChunkCache(const yaffs_Object * obj, ++static yaffs_ChunkCache *yaffs_FindChunkCache(const yaffs_Object *obj, + int chunkId) + { + yaffs_Device *dev = obj->myDev; +@@ -3969,7 +4019,7 @@ static yaffs_ChunkCache *yaffs_FindChunk + } + + /* Mark the chunk for the least recently used algorithym */ +-static void yaffs_UseChunkCache(yaffs_Device * dev, yaffs_ChunkCache * cache, ++static void yaffs_UseChunkCache(yaffs_Device *dev, yaffs_ChunkCache *cache, + int isAWrite) + { + +@@ -3977,9 +4027,9 @@ static void yaffs_UseChunkCache(yaffs_De + if (dev->srLastUse < 0 || dev->srLastUse > 100000000) { + /* Reset the cache usages */ + int i; +- for (i = 1; i < dev->nShortOpCaches; i++) { ++ for (i = 1; i < dev->nShortOpCaches; i++) + dev->srCache[i].lastUse = 0; +- } ++ + dev->srLastUse = 0; + } + +@@ -3987,9 +4037,8 @@ static void yaffs_UseChunkCache(yaffs_De + + cache->lastUse = dev->srLastUse; + +- if (isAWrite) { ++ if (isAWrite) + cache->dirty = 1; +- } + } + } + +@@ -3997,21 +4046,20 @@ static void yaffs_UseChunkCache(yaffs_De + * Do this when a whole page gets written, + * ie the short cache for this page is no longer valid. + */ +-static void yaffs_InvalidateChunkCache(yaffs_Object * object, int chunkId) ++static void yaffs_InvalidateChunkCache(yaffs_Object *object, int chunkId) + { + if (object->myDev->nShortOpCaches > 0) { + yaffs_ChunkCache *cache = yaffs_FindChunkCache(object, chunkId); + +- if (cache) { ++ if (cache) + cache->object = NULL; +- } + } + } + + /* Invalidate all the cache pages associated with this object + * Do this whenever ther file is deleted or resized. + */ +-static void yaffs_InvalidateWholeChunkCache(yaffs_Object * in) ++static void yaffs_InvalidateWholeChunkCache(yaffs_Object *in) + { + int i; + yaffs_Device *dev = in->myDev; +@@ -4019,9 +4067,8 @@ static void yaffs_InvalidateWholeChunkCa + if (dev->nShortOpCaches > 0) { + /* Invalidate it. */ + for (i = 0; i < dev->nShortOpCaches; i++) { +- if (dev->srCache[i].object == in) { ++ if (dev->srCache[i].object == in) + dev->srCache[i].object = NULL; +- } + } + } + } +@@ -4029,18 +4076,18 @@ static void yaffs_InvalidateWholeChunkCa + /*--------------------- Checkpointing --------------------*/ + + +-static int yaffs_WriteCheckpointValidityMarker(yaffs_Device *dev,int head) ++static int yaffs_WriteCheckpointValidityMarker(yaffs_Device *dev, int head) + { + yaffs_CheckpointValidity cp; + +- memset(&cp,0,sizeof(cp)); ++ memset(&cp, 0, sizeof(cp)); + + cp.structType = sizeof(cp); + cp.magic = YAFFS_MAGIC; + cp.version = YAFFS_CHECKPOINT_VERSION; + cp.head = (head) ? 1 : 0; + +- return (yaffs_CheckpointWrite(dev,&cp,sizeof(cp)) == sizeof(cp))? ++ return (yaffs_CheckpointWrite(dev, &cp, sizeof(cp)) == sizeof(cp)) ? + 1 : 0; + } + +@@ -4049,9 +4096,9 @@ static int yaffs_ReadCheckpointValidityM + yaffs_CheckpointValidity cp; + int ok; + +- ok = (yaffs_CheckpointRead(dev,&cp,sizeof(cp)) == sizeof(cp)); ++ ok = (yaffs_CheckpointRead(dev, &cp, sizeof(cp)) == sizeof(cp)); + +- if(ok) ++ if (ok) + ok = (cp.structType == sizeof(cp)) && + (cp.magic == YAFFS_MAGIC) && + (cp.version == YAFFS_CHECKPOINT_VERSION) && +@@ -4100,21 +4147,21 @@ static int yaffs_WriteCheckpointDevice(y + int ok; + + /* Write device runtime values*/ +- yaffs_DeviceToCheckpointDevice(&cp,dev); ++ yaffs_DeviceToCheckpointDevice(&cp, dev); + cp.structType = sizeof(cp); + +- ok = (yaffs_CheckpointWrite(dev,&cp,sizeof(cp)) == sizeof(cp)); ++ ok = (yaffs_CheckpointWrite(dev, &cp, sizeof(cp)) == sizeof(cp)); + + /* Write block info */ +- if(ok) { ++ if (ok) { + nBytes = nBlocks * sizeof(yaffs_BlockInfo); +- ok = (yaffs_CheckpointWrite(dev,dev->blockInfo,nBytes) == nBytes); ++ ok = (yaffs_CheckpointWrite(dev, dev->blockInfo, nBytes) == nBytes); + } + + /* Write chunk bits */ +- if(ok) { ++ if (ok) { + nBytes = nBlocks * dev->chunkBitmapStride; +- ok = (yaffs_CheckpointWrite(dev,dev->chunkBits,nBytes) == nBytes); ++ ok = (yaffs_CheckpointWrite(dev, dev->chunkBits, nBytes) == nBytes); + } + return ok ? 1 : 0; + +@@ -4128,25 +4175,25 @@ static int yaffs_ReadCheckpointDevice(ya + + int ok; + +- ok = (yaffs_CheckpointRead(dev,&cp,sizeof(cp)) == sizeof(cp)); +- if(!ok) ++ ok = (yaffs_CheckpointRead(dev, &cp, sizeof(cp)) == sizeof(cp)); ++ if (!ok) + return 0; + +- if(cp.structType != sizeof(cp)) ++ if (cp.structType != sizeof(cp)) + return 0; + + +- yaffs_CheckpointDeviceToDevice(dev,&cp); ++ yaffs_CheckpointDeviceToDevice(dev, &cp); + + nBytes = nBlocks * sizeof(yaffs_BlockInfo); + +- ok = (yaffs_CheckpointRead(dev,dev->blockInfo,nBytes) == nBytes); ++ ok = (yaffs_CheckpointRead(dev, dev->blockInfo, nBytes) == nBytes); + +- if(!ok) ++ if (!ok) + return 0; + nBytes = nBlocks * dev->chunkBitmapStride; + +- ok = (yaffs_CheckpointRead(dev,dev->chunkBits,nBytes) == nBytes); ++ ok = (yaffs_CheckpointRead(dev, dev->chunkBits, nBytes) == nBytes); + + return ok ? 1 : 0; + } +@@ -4157,7 +4204,7 @@ static void yaffs_ObjectToCheckpointObje + + cp->objectId = obj->objectId; + cp->parentId = (obj->parent) ? obj->parent->objectId : 0; +- cp->chunkId = obj->chunkId; ++ cp->hdrChunk = obj->hdrChunk; + cp->variantType = obj->variantType; + cp->deleted = obj->deleted; + cp->softDeleted = obj->softDeleted; +@@ -4168,20 +4215,28 @@ static void yaffs_ObjectToCheckpointObje + cp->serial = obj->serial; + cp->nDataChunks = obj->nDataChunks; + +- if(obj->variantType == YAFFS_OBJECT_TYPE_FILE) ++ if (obj->variantType == YAFFS_OBJECT_TYPE_FILE) + cp->fileSizeOrEquivalentObjectId = obj->variant.fileVariant.fileSize; +- else if(obj->variantType == YAFFS_OBJECT_TYPE_HARDLINK) ++ else if (obj->variantType == YAFFS_OBJECT_TYPE_HARDLINK) + cp->fileSizeOrEquivalentObjectId = obj->variant.hardLinkVariant.equivalentObjectId; + } + +-static void yaffs_CheckpointObjectToObject( yaffs_Object *obj,yaffs_CheckpointObject *cp) ++static int yaffs_CheckpointObjectToObject(yaffs_Object *obj, yaffs_CheckpointObject *cp) + { + + yaffs_Object *parent; + ++ if (obj->variantType != cp->variantType) { ++ T(YAFFS_TRACE_ERROR, (TSTR("Checkpoint read object %d type %d " ++ TCONT("chunk %d does not match existing object type %d") ++ TENDSTR), cp->objectId, cp->variantType, cp->hdrChunk, ++ obj->variantType)); ++ return 0; ++ } ++ + obj->objectId = cp->objectId; + +- if(cp->parentId) ++ if (cp->parentId) + parent = yaffs_FindOrCreateObjectByNumber( + obj->myDev, + cp->parentId, +@@ -4189,10 +4244,19 @@ static void yaffs_CheckpointObjectToObje + else + parent = NULL; + +- if(parent) ++ if (parent) { ++ if (parent->variantType != YAFFS_OBJECT_TYPE_DIRECTORY) { ++ T(YAFFS_TRACE_ALWAYS, (TSTR("Checkpoint read object %d parent %d type %d" ++ TCONT(" chunk %d Parent type, %d, not directory") ++ TENDSTR), ++ cp->objectId, cp->parentId, cp->variantType, ++ cp->hdrChunk, parent->variantType)); ++ return 0; ++ } + yaffs_AddObjectToDirectory(parent, obj); ++ } + +- obj->chunkId = cp->chunkId; ++ obj->hdrChunk = cp->hdrChunk; + obj->variantType = cp->variantType; + obj->deleted = cp->deleted; + obj->softDeleted = cp->softDeleted; +@@ -4203,29 +4267,34 @@ static void yaffs_CheckpointObjectToObje + obj->serial = cp->serial; + obj->nDataChunks = cp->nDataChunks; + +- if(obj->variantType == YAFFS_OBJECT_TYPE_FILE) ++ if (obj->variantType == YAFFS_OBJECT_TYPE_FILE) + obj->variant.fileVariant.fileSize = cp->fileSizeOrEquivalentObjectId; +- else if(obj->variantType == YAFFS_OBJECT_TYPE_HARDLINK) ++ else if (obj->variantType == YAFFS_OBJECT_TYPE_HARDLINK) + obj->variant.hardLinkVariant.equivalentObjectId = cp->fileSizeOrEquivalentObjectId; + +- if(obj->objectId >= YAFFS_NOBJECT_BUCKETS) ++ if (obj->hdrChunk > 0) + obj->lazyLoaded = 1; ++ return 1; + } + + + +-static int yaffs_CheckpointTnodeWorker(yaffs_Object * in, yaffs_Tnode * tn, +- __u32 level, int chunkOffset) ++static int yaffs_CheckpointTnodeWorker(yaffs_Object *in, yaffs_Tnode *tn, ++ __u32 level, int chunkOffset) + { + int i; + yaffs_Device *dev = in->myDev; + int ok = 1; +- int nTnodeBytes = (dev->tnodeWidth * YAFFS_NTNODES_LEVEL0)/8; ++ int tnodeSize = (dev->tnodeWidth * YAFFS_NTNODES_LEVEL0)/8; ++ ++ if (tnodeSize < sizeof(yaffs_Tnode)) ++ tnodeSize = sizeof(yaffs_Tnode); ++ + + if (tn) { + if (level > 0) { + +- for (i = 0; i < YAFFS_NTNODES_INTERNAL && ok; i++){ ++ for (i = 0; i < YAFFS_NTNODES_INTERNAL && ok; i++) { + if (tn->internal[i]) { + ok = yaffs_CheckpointTnodeWorker(in, + tn->internal[i], +@@ -4235,10 +4304,9 @@ static int yaffs_CheckpointTnodeWorker(y + } + } else if (level == 0) { + __u32 baseOffset = chunkOffset << YAFFS_TNODES_LEVEL0_BITS; +- /* printf("write tnode at %d\n",baseOffset); */ +- ok = (yaffs_CheckpointWrite(dev,&baseOffset,sizeof(baseOffset)) == sizeof(baseOffset)); +- if(ok) +- ok = (yaffs_CheckpointWrite(dev,tn,nTnodeBytes) == nTnodeBytes); ++ ok = (yaffs_CheckpointWrite(dev, &baseOffset, sizeof(baseOffset)) == sizeof(baseOffset)); ++ if (ok) ++ ok = (yaffs_CheckpointWrite(dev, tn, tnodeSize) == tnodeSize); + } + } + +@@ -4251,13 +4319,13 @@ static int yaffs_WriteCheckpointTnodes(y + __u32 endMarker = ~0; + int ok = 1; + +- if(obj->variantType == YAFFS_OBJECT_TYPE_FILE){ ++ if (obj->variantType == YAFFS_OBJECT_TYPE_FILE) { + ok = yaffs_CheckpointTnodeWorker(obj, + obj->variant.fileVariant.top, + obj->variant.fileVariant.topLevel, + 0); +- if(ok) +- ok = (yaffs_CheckpointWrite(obj->myDev,&endMarker,sizeof(endMarker)) == ++ if (ok) ++ ok = (yaffs_CheckpointWrite(obj->myDev, &endMarker, sizeof(endMarker)) == + sizeof(endMarker)); + } + +@@ -4272,38 +4340,38 @@ static int yaffs_ReadCheckpointTnodes(ya + yaffs_FileStructure *fileStructPtr = &obj->variant.fileVariant; + yaffs_Tnode *tn; + int nread = 0; ++ int tnodeSize = (dev->tnodeWidth * YAFFS_NTNODES_LEVEL0)/8; + +- ok = (yaffs_CheckpointRead(dev,&baseChunk,sizeof(baseChunk)) == sizeof(baseChunk)); ++ if (tnodeSize < sizeof(yaffs_Tnode)) ++ tnodeSize = sizeof(yaffs_Tnode); + +- while(ok && (~baseChunk)){ ++ ok = (yaffs_CheckpointRead(dev, &baseChunk, sizeof(baseChunk)) == sizeof(baseChunk)); ++ ++ while (ok && (~baseChunk)) { + nread++; + /* Read level 0 tnode */ + + +- /* printf("read tnode at %d\n",baseChunk); */ + tn = yaffs_GetTnodeRaw(dev); +- if(tn) +- ok = (yaffs_CheckpointRead(dev,tn,(dev->tnodeWidth * YAFFS_NTNODES_LEVEL0)/8) == +- (dev->tnodeWidth * YAFFS_NTNODES_LEVEL0)/8); ++ if (tn) ++ ok = (yaffs_CheckpointRead(dev, tn, tnodeSize) == tnodeSize); + else + ok = 0; + +- if(tn && ok){ ++ if (tn && ok) + ok = yaffs_AddOrFindLevel0Tnode(dev, +- fileStructPtr, +- baseChunk, +- tn) ? 1 : 0; ++ fileStructPtr, ++ baseChunk, ++ tn) ? 1 : 0; + +- } +- +- if(ok) +- ok = (yaffs_CheckpointRead(dev,&baseChunk,sizeof(baseChunk)) == sizeof(baseChunk)); ++ if (ok) ++ ok = (yaffs_CheckpointRead(dev, &baseChunk, sizeof(baseChunk)) == sizeof(baseChunk)); + + } + +- T(YAFFS_TRACE_CHECKPOINT,( ++ T(YAFFS_TRACE_CHECKPOINT, ( + TSTR("Checkpoint read tnodes %d records, last %d. ok %d" TENDSTR), +- nread,baseChunk,ok)); ++ nread, baseChunk, ok)); + + return ok ? 1 : 0; + } +@@ -4315,41 +4383,40 @@ static int yaffs_WriteCheckpointObjects( + yaffs_CheckpointObject cp; + int i; + int ok = 1; +- struct list_head *lh; ++ struct ylist_head *lh; + + + /* Iterate through the objects in each hash entry, + * dumping them to the checkpointing stream. + */ + +- for(i = 0; ok && i < YAFFS_NOBJECT_BUCKETS; i++){ +- list_for_each(lh, &dev->objectBucket[i].list) { ++ for (i = 0; ok && i < YAFFS_NOBJECT_BUCKETS; i++) { ++ ylist_for_each(lh, &dev->objectBucket[i].list) { + if (lh) { +- obj = list_entry(lh, yaffs_Object, hashLink); ++ obj = ylist_entry(lh, yaffs_Object, hashLink); + if (!obj->deferedFree) { +- yaffs_ObjectToCheckpointObject(&cp,obj); ++ yaffs_ObjectToCheckpointObject(&cp, obj); + cp.structType = sizeof(cp); + +- T(YAFFS_TRACE_CHECKPOINT,( ++ T(YAFFS_TRACE_CHECKPOINT, ( + TSTR("Checkpoint write object %d parent %d type %d chunk %d obj addr %x" TENDSTR), +- cp.objectId,cp.parentId,cp.variantType,cp.chunkId,(unsigned) obj)); ++ cp.objectId, cp.parentId, cp.variantType, cp.hdrChunk, (unsigned) obj)); + +- ok = (yaffs_CheckpointWrite(dev,&cp,sizeof(cp)) == sizeof(cp)); ++ ok = (yaffs_CheckpointWrite(dev, &cp, sizeof(cp)) == sizeof(cp)); + +- if(ok && obj->variantType == YAFFS_OBJECT_TYPE_FILE){ ++ if (ok && obj->variantType == YAFFS_OBJECT_TYPE_FILE) + ok = yaffs_WriteCheckpointTnodes(obj); +- } + } + } + } +- } ++ } + +- /* Dump end of list */ +- memset(&cp,0xFF,sizeof(yaffs_CheckpointObject)); ++ /* Dump end of list */ ++ memset(&cp, 0xFF, sizeof(yaffs_CheckpointObject)); + cp.structType = sizeof(cp); + +- if(ok) +- ok = (yaffs_CheckpointWrite(dev,&cp,sizeof(cp)) == sizeof(cp)); ++ if (ok) ++ ok = (yaffs_CheckpointWrite(dev, &cp, sizeof(cp)) == sizeof(cp)); + + return ok ? 1 : 0; + } +@@ -4362,38 +4429,39 @@ static int yaffs_ReadCheckpointObjects(y + int done = 0; + yaffs_Object *hardList = NULL; + +- while(ok && !done) { +- ok = (yaffs_CheckpointRead(dev,&cp,sizeof(cp)) == sizeof(cp)); +- if(cp.structType != sizeof(cp)) { +- T(YAFFS_TRACE_CHECKPOINT,(TSTR("struct size %d instead of %d ok %d"TENDSTR), +- cp.structType,sizeof(cp),ok)); ++ while (ok && !done) { ++ ok = (yaffs_CheckpointRead(dev, &cp, sizeof(cp)) == sizeof(cp)); ++ if (cp.structType != sizeof(cp)) { ++ T(YAFFS_TRACE_CHECKPOINT, (TSTR("struct size %d instead of %d ok %d"TENDSTR), ++ cp.structType, sizeof(cp), ok)); + ok = 0; + } + +- T(YAFFS_TRACE_CHECKPOINT,(TSTR("Checkpoint read object %d parent %d type %d chunk %d " TENDSTR), +- cp.objectId,cp.parentId,cp.variantType,cp.chunkId)); ++ T(YAFFS_TRACE_CHECKPOINT, (TSTR("Checkpoint read object %d parent %d type %d chunk %d " TENDSTR), ++ cp.objectId, cp.parentId, cp.variantType, cp.hdrChunk)); + +- if(ok && cp.objectId == ~0) ++ if (ok && cp.objectId == ~0) + done = 1; +- else if(ok){ +- obj = yaffs_FindOrCreateObjectByNumber(dev,cp.objectId, cp.variantType); +- if(obj) { +- yaffs_CheckpointObjectToObject(obj,&cp); +- if(obj->variantType == YAFFS_OBJECT_TYPE_FILE) { ++ else if (ok) { ++ obj = yaffs_FindOrCreateObjectByNumber(dev, cp.objectId, cp.variantType); ++ if (obj) { ++ ok = yaffs_CheckpointObjectToObject(obj, &cp); ++ if (!ok) ++ break; ++ if (obj->variantType == YAFFS_OBJECT_TYPE_FILE) { + ok = yaffs_ReadCheckpointTnodes(obj); +- } else if(obj->variantType == YAFFS_OBJECT_TYPE_HARDLINK) { ++ } else if (obj->variantType == YAFFS_OBJECT_TYPE_HARDLINK) { + obj->hardLinks.next = +- (struct list_head *) +- hardList; ++ (struct ylist_head *) hardList; + hardList = obj; + } +- +- } ++ } else ++ ok = 0; + } + } + +- if(ok) +- yaffs_HardlinkFixup(dev,hardList); ++ if (ok) ++ yaffs_HardlinkFixup(dev, hardList); + + return ok ? 1 : 0; + } +@@ -4403,11 +4471,11 @@ static int yaffs_WriteCheckpointSum(yaff + __u32 checkpointSum; + int ok; + +- yaffs_GetCheckpointSum(dev,&checkpointSum); ++ yaffs_GetCheckpointSum(dev, &checkpointSum); + +- ok = (yaffs_CheckpointWrite(dev,&checkpointSum,sizeof(checkpointSum)) == sizeof(checkpointSum)); ++ ok = (yaffs_CheckpointWrite(dev, &checkpointSum, sizeof(checkpointSum)) == sizeof(checkpointSum)); + +- if(!ok) ++ if (!ok) + return 0; + + return 1; +@@ -4419,14 +4487,14 @@ static int yaffs_ReadCheckpointSum(yaffs + __u32 checkpointSum1; + int ok; + +- yaffs_GetCheckpointSum(dev,&checkpointSum0); ++ yaffs_GetCheckpointSum(dev, &checkpointSum0); + +- ok = (yaffs_CheckpointRead(dev,&checkpointSum1,sizeof(checkpointSum1)) == sizeof(checkpointSum1)); ++ ok = (yaffs_CheckpointRead(dev, &checkpointSum1, sizeof(checkpointSum1)) == sizeof(checkpointSum1)); + +- if(!ok) ++ if (!ok) + return 0; + +- if(checkpointSum0 != checkpointSum1) ++ if (checkpointSum0 != checkpointSum1) + return 0; + + return 1; +@@ -4435,46 +4503,43 @@ static int yaffs_ReadCheckpointSum(yaffs + + static int yaffs_WriteCheckpointData(yaffs_Device *dev) + { +- + int ok = 1; + +- if(dev->skipCheckpointWrite || !dev->isYaffs2){ +- T(YAFFS_TRACE_CHECKPOINT,(TSTR("skipping checkpoint write" TENDSTR))); ++ if (dev->skipCheckpointWrite || !dev->isYaffs2) { ++ T(YAFFS_TRACE_CHECKPOINT, (TSTR("skipping checkpoint write" TENDSTR))); + ok = 0; + } + +- if(ok) +- ok = yaffs_CheckpointOpen(dev,1); ++ if (ok) ++ ok = yaffs_CheckpointOpen(dev, 1); + +- if(ok){ +- T(YAFFS_TRACE_CHECKPOINT,(TSTR("write checkpoint validity" TENDSTR))); +- ok = yaffs_WriteCheckpointValidityMarker(dev,1); ++ if (ok) { ++ T(YAFFS_TRACE_CHECKPOINT, (TSTR("write checkpoint validity" TENDSTR))); ++ ok = yaffs_WriteCheckpointValidityMarker(dev, 1); + } +- if(ok){ +- T(YAFFS_TRACE_CHECKPOINT,(TSTR("write checkpoint device" TENDSTR))); ++ if (ok) { ++ T(YAFFS_TRACE_CHECKPOINT, (TSTR("write checkpoint device" TENDSTR))); + ok = yaffs_WriteCheckpointDevice(dev); + } +- if(ok){ +- T(YAFFS_TRACE_CHECKPOINT,(TSTR("write checkpoint objects" TENDSTR))); ++ if (ok) { ++ T(YAFFS_TRACE_CHECKPOINT, (TSTR("write checkpoint objects" TENDSTR))); + ok = yaffs_WriteCheckpointObjects(dev); + } +- if(ok){ +- T(YAFFS_TRACE_CHECKPOINT,(TSTR("write checkpoint validity" TENDSTR))); +- ok = yaffs_WriteCheckpointValidityMarker(dev,0); ++ if (ok) { ++ T(YAFFS_TRACE_CHECKPOINT, (TSTR("write checkpoint validity" TENDSTR))); ++ ok = yaffs_WriteCheckpointValidityMarker(dev, 0); + } + +- if(ok){ ++ if (ok) + ok = yaffs_WriteCheckpointSum(dev); +- } +- + +- if(!yaffs_CheckpointClose(dev)) +- ok = 0; ++ if (!yaffs_CheckpointClose(dev)) ++ ok = 0; + +- if(ok) +- dev->isCheckpointed = 1; +- else +- dev->isCheckpointed = 0; ++ if (ok) ++ dev->isCheckpointed = 1; ++ else ++ dev->isCheckpointed = 0; + + return dev->isCheckpointed; + } +@@ -4483,43 +4548,43 @@ static int yaffs_ReadCheckpointData(yaff + { + int ok = 1; + +- if(dev->skipCheckpointRead || !dev->isYaffs2){ +- T(YAFFS_TRACE_CHECKPOINT,(TSTR("skipping checkpoint read" TENDSTR))); ++ if (dev->skipCheckpointRead || !dev->isYaffs2) { ++ T(YAFFS_TRACE_CHECKPOINT, (TSTR("skipping checkpoint read" TENDSTR))); + ok = 0; + } + +- if(ok) +- ok = yaffs_CheckpointOpen(dev,0); /* open for read */ ++ if (ok) ++ ok = yaffs_CheckpointOpen(dev, 0); /* open for read */ + +- if(ok){ +- T(YAFFS_TRACE_CHECKPOINT,(TSTR("read checkpoint validity" TENDSTR))); +- ok = yaffs_ReadCheckpointValidityMarker(dev,1); ++ if (ok) { ++ T(YAFFS_TRACE_CHECKPOINT, (TSTR("read checkpoint validity" TENDSTR))); ++ ok = yaffs_ReadCheckpointValidityMarker(dev, 1); + } +- if(ok){ +- T(YAFFS_TRACE_CHECKPOINT,(TSTR("read checkpoint device" TENDSTR))); ++ if (ok) { ++ T(YAFFS_TRACE_CHECKPOINT, (TSTR("read checkpoint device" TENDSTR))); + ok = yaffs_ReadCheckpointDevice(dev); + } +- if(ok){ +- T(YAFFS_TRACE_CHECKPOINT,(TSTR("read checkpoint objects" TENDSTR))); ++ if (ok) { ++ T(YAFFS_TRACE_CHECKPOINT, (TSTR("read checkpoint objects" TENDSTR))); + ok = yaffs_ReadCheckpointObjects(dev); + } +- if(ok){ +- T(YAFFS_TRACE_CHECKPOINT,(TSTR("read checkpoint validity" TENDSTR))); +- ok = yaffs_ReadCheckpointValidityMarker(dev,0); ++ if (ok) { ++ T(YAFFS_TRACE_CHECKPOINT, (TSTR("read checkpoint validity" TENDSTR))); ++ ok = yaffs_ReadCheckpointValidityMarker(dev, 0); + } + +- if(ok){ ++ if (ok) { + ok = yaffs_ReadCheckpointSum(dev); +- T(YAFFS_TRACE_CHECKPOINT,(TSTR("read checkpoint checksum %d" TENDSTR),ok)); ++ T(YAFFS_TRACE_CHECKPOINT, (TSTR("read checkpoint checksum %d" TENDSTR), ok)); + } + +- if(!yaffs_CheckpointClose(dev)) ++ if (!yaffs_CheckpointClose(dev)) + ok = 0; + +- if(ok) +- dev->isCheckpointed = 1; +- else +- dev->isCheckpointed = 0; ++ if (ok) ++ dev->isCheckpointed = 1; ++ else ++ dev->isCheckpointed = 0; + + return ok ? 1 : 0; + +@@ -4527,11 +4592,11 @@ static int yaffs_ReadCheckpointData(yaff + + static void yaffs_InvalidateCheckpoint(yaffs_Device *dev) + { +- if(dev->isCheckpointed || +- dev->blocksInCheckpoint > 0){ ++ if (dev->isCheckpointed || ++ dev->blocksInCheckpoint > 0) { + dev->isCheckpointed = 0; + yaffs_CheckpointInvalidateStream(dev); +- if(dev->superBlock && dev->markSuperBlockDirty) ++ if (dev->superBlock && dev->markSuperBlockDirty) + dev->markSuperBlockDirty(dev->superBlock); + } + } +@@ -4540,18 +4605,18 @@ static void yaffs_InvalidateCheckpoint(y + int yaffs_CheckpointSave(yaffs_Device *dev) + { + +- T(YAFFS_TRACE_CHECKPOINT,(TSTR("save entry: isCheckpointed %d"TENDSTR),dev->isCheckpointed)); ++ T(YAFFS_TRACE_CHECKPOINT, (TSTR("save entry: isCheckpointed %d"TENDSTR), dev->isCheckpointed)); + + yaffs_VerifyObjects(dev); + yaffs_VerifyBlocks(dev); + yaffs_VerifyFreeChunks(dev); + +- if(!dev->isCheckpointed) { ++ if (!dev->isCheckpointed) { + yaffs_InvalidateCheckpoint(dev); + yaffs_WriteCheckpointData(dev); + } + +- T(YAFFS_TRACE_ALWAYS,(TSTR("save exit: isCheckpointed %d"TENDSTR),dev->isCheckpointed)); ++ T(YAFFS_TRACE_ALWAYS, (TSTR("save exit: isCheckpointed %d"TENDSTR), dev->isCheckpointed)); + + return dev->isCheckpointed; + } +@@ -4559,17 +4624,17 @@ int yaffs_CheckpointSave(yaffs_Device *d + int yaffs_CheckpointRestore(yaffs_Device *dev) + { + int retval; +- T(YAFFS_TRACE_CHECKPOINT,(TSTR("restore entry: isCheckpointed %d"TENDSTR),dev->isCheckpointed)); ++ T(YAFFS_TRACE_CHECKPOINT, (TSTR("restore entry: isCheckpointed %d"TENDSTR), dev->isCheckpointed)); + + retval = yaffs_ReadCheckpointData(dev); + +- if(dev->isCheckpointed){ ++ if (dev->isCheckpointed) { + yaffs_VerifyObjects(dev); + yaffs_VerifyBlocks(dev); + yaffs_VerifyFreeChunks(dev); + } + +- T(YAFFS_TRACE_CHECKPOINT,(TSTR("restore exit: isCheckpointed %d"TENDSTR),dev->isCheckpointed)); ++ T(YAFFS_TRACE_CHECKPOINT, (TSTR("restore exit: isCheckpointed %d"TENDSTR), dev->isCheckpointed)); + + return retval; + } +@@ -4584,12 +4649,12 @@ int yaffs_CheckpointRestore(yaffs_Device + * Curve-balls: the first chunk might also be the last chunk. + */ + +-int yaffs_ReadDataFromFile(yaffs_Object * in, __u8 * buffer, loff_t offset, +- int nBytes) ++int yaffs_ReadDataFromFile(yaffs_Object *in, __u8 *buffer, loff_t offset, ++ int nBytes) + { + + int chunk; +- int start; ++ __u32 start; + int nToCopy; + int n = nBytes; + int nDone = 0; +@@ -4600,27 +4665,26 @@ int yaffs_ReadDataFromFile(yaffs_Object + dev = in->myDev; + + while (n > 0) { +- //chunk = offset / dev->nDataBytesPerChunk + 1; +- //start = offset % dev->nDataBytesPerChunk; +- yaffs_AddrToChunk(dev,offset,&chunk,&start); ++ /* chunk = offset / dev->nDataBytesPerChunk + 1; */ ++ /* start = offset % dev->nDataBytesPerChunk; */ ++ yaffs_AddrToChunk(dev, offset, &chunk, &start); + chunk++; + + /* OK now check for the curveball where the start and end are in + * the same chunk. + */ +- if ((start + n) < dev->nDataBytesPerChunk) { ++ if ((start + n) < dev->nDataBytesPerChunk) + nToCopy = n; +- } else { ++ else + nToCopy = dev->nDataBytesPerChunk - start; +- } + + cache = yaffs_FindChunkCache(in, chunk); + + /* If the chunk is already in the cache or it is less than a whole chunk +- * then use the cache (if there is caching) ++ * or we're using inband tags then use the cache (if there is caching) + * else bypass the cache. + */ +- if (cache || nToCopy != dev->nDataBytesPerChunk) { ++ if (cache || nToCopy != dev->nDataBytesPerChunk || dev->inbandTags) { + if (dev->nShortOpCaches > 0) { + + /* If we can't find the data in the cache, then load it up. */ +@@ -4641,14 +4705,9 @@ int yaffs_ReadDataFromFile(yaffs_Object + + cache->locked = 1; + +-#ifdef CONFIG_YAFFS_WINCE +- yfsd_UnlockYAFFS(TRUE); +-#endif ++ + memcpy(buffer, &cache->data[start], nToCopy); + +-#ifdef CONFIG_YAFFS_WINCE +- yfsd_LockYAFFS(TRUE); +-#endif + cache->locked = 0; + } else { + /* Read into the local buffer then copy..*/ +@@ -4657,41 +4716,19 @@ int yaffs_ReadDataFromFile(yaffs_Object + yaffs_GetTempBuffer(dev, __LINE__); + yaffs_ReadChunkDataFromObject(in, chunk, + localBuffer); +-#ifdef CONFIG_YAFFS_WINCE +- yfsd_UnlockYAFFS(TRUE); +-#endif ++ + memcpy(buffer, &localBuffer[start], nToCopy); + +-#ifdef CONFIG_YAFFS_WINCE +- yfsd_LockYAFFS(TRUE); +-#endif ++ + yaffs_ReleaseTempBuffer(dev, localBuffer, + __LINE__); + } + + } else { +-#ifdef CONFIG_YAFFS_WINCE +- __u8 *localBuffer = yaffs_GetTempBuffer(dev, __LINE__); +- +- /* Under WinCE can't do direct transfer. Need to use a local buffer. +- * This is because we otherwise screw up WinCE's memory mapper +- */ +- yaffs_ReadChunkDataFromObject(in, chunk, localBuffer); +- +-#ifdef CONFIG_YAFFS_WINCE +- yfsd_UnlockYAFFS(TRUE); +-#endif +- memcpy(buffer, localBuffer, dev->nDataBytesPerChunk); + +-#ifdef CONFIG_YAFFS_WINCE +- yfsd_LockYAFFS(TRUE); +- yaffs_ReleaseTempBuffer(dev, localBuffer, __LINE__); +-#endif +- +-#else + /* A full chunk. Read directly into the supplied buffer. */ + yaffs_ReadChunkDataFromObject(in, chunk, buffer); +-#endif ++ + } + + n -= nToCopy; +@@ -4704,28 +4741,37 @@ int yaffs_ReadDataFromFile(yaffs_Object + return nDone; + } + +-int yaffs_WriteDataToFile(yaffs_Object * in, const __u8 * buffer, loff_t offset, +- int nBytes, int writeThrough) ++int yaffs_WriteDataToFile(yaffs_Object *in, const __u8 *buffer, loff_t offset, ++ int nBytes, int writeThrough) + { + + int chunk; +- int start; ++ __u32 start; + int nToCopy; + int n = nBytes; + int nDone = 0; + int nToWriteBack; + int startOfWrite = offset; + int chunkWritten = 0; +- int nBytesRead; ++ __u32 nBytesRead; ++ __u32 chunkStart; + + yaffs_Device *dev; + + dev = in->myDev; + + while (n > 0 && chunkWritten >= 0) { +- //chunk = offset / dev->nDataBytesPerChunk + 1; +- //start = offset % dev->nDataBytesPerChunk; +- yaffs_AddrToChunk(dev,offset,&chunk,&start); ++ /* chunk = offset / dev->nDataBytesPerChunk + 1; */ ++ /* start = offset % dev->nDataBytesPerChunk; */ ++ yaffs_AddrToChunk(dev, offset, &chunk, &start); ++ ++ if (chunk * dev->nDataBytesPerChunk + start != offset || ++ start >= dev->nDataBytesPerChunk) { ++ T(YAFFS_TRACE_ERROR, ( ++ TSTR("AddrToChunk of offset %d gives chunk %d start %d" ++ TENDSTR), ++ (int)offset, chunk, start)); ++ } + chunk++; + + /* OK now check for the curveball where the start and end are in +@@ -4740,25 +4786,32 @@ int yaffs_WriteDataToFile(yaffs_Object * + * we need to write back as much as was there before. + */ + +- nBytesRead = +- in->variant.fileVariant.fileSize - +- ((chunk - 1) * dev->nDataBytesPerChunk); ++ chunkStart = ((chunk - 1) * dev->nDataBytesPerChunk); ++ ++ if (chunkStart > in->variant.fileVariant.fileSize) ++ nBytesRead = 0; /* Past end of file */ ++ else ++ nBytesRead = in->variant.fileVariant.fileSize - chunkStart; + +- if (nBytesRead > dev->nDataBytesPerChunk) { ++ if (nBytesRead > dev->nDataBytesPerChunk) + nBytesRead = dev->nDataBytesPerChunk; +- } + + nToWriteBack = + (nBytesRead > + (start + n)) ? nBytesRead : (start + n); + ++ if (nToWriteBack < 0 || nToWriteBack > dev->nDataBytesPerChunk) ++ YBUG(); ++ + } else { + nToCopy = dev->nDataBytesPerChunk - start; + nToWriteBack = dev->nDataBytesPerChunk; + } + +- if (nToCopy != dev->nDataBytesPerChunk) { +- /* An incomplete start or end chunk (or maybe both start and end chunk) */ ++ if (nToCopy != dev->nDataBytesPerChunk || dev->inbandTags) { ++ /* An incomplete start or end chunk (or maybe both start and end chunk), ++ * or we're using inband tags, so we want to use the cache buffers. ++ */ + if (dev->nShortOpCaches > 0) { + yaffs_ChunkCache *cache; + /* If we can't find the data in the cache, then load the cache */ +@@ -4775,10 +4828,9 @@ int yaffs_WriteDataToFile(yaffs_Object * + yaffs_ReadChunkDataFromObject(in, chunk, + cache-> + data); +- } +- else if(cache && +- !cache->dirty && +- !yaffs_CheckSpaceForAllocation(in->myDev)){ ++ } else if (cache && ++ !cache->dirty && ++ !yaffs_CheckSpaceForAllocation(in->myDev)) { + /* Drop the cache if it was a read cache item and + * no space check has been made for it. + */ +@@ -4788,16 +4840,12 @@ int yaffs_WriteDataToFile(yaffs_Object * + if (cache) { + yaffs_UseChunkCache(dev, cache, 1); + cache->locked = 1; +-#ifdef CONFIG_YAFFS_WINCE +- yfsd_UnlockYAFFS(TRUE); +-#endif ++ + + memcpy(&cache->data[start], buffer, + nToCopy); + +-#ifdef CONFIG_YAFFS_WINCE +- yfsd_LockYAFFS(TRUE); +-#endif ++ + cache->locked = 0; + cache->nBytes = nToWriteBack; + +@@ -4825,15 +4873,10 @@ int yaffs_WriteDataToFile(yaffs_Object * + yaffs_ReadChunkDataFromObject(in, chunk, + localBuffer); + +-#ifdef CONFIG_YAFFS_WINCE +- yfsd_UnlockYAFFS(TRUE); +-#endif ++ + + memcpy(&localBuffer[start], buffer, nToCopy); + +-#ifdef CONFIG_YAFFS_WINCE +- yfsd_LockYAFFS(TRUE); +-#endif + chunkWritten = + yaffs_WriteChunkDataToObject(in, chunk, + localBuffer, +@@ -4846,31 +4889,15 @@ int yaffs_WriteDataToFile(yaffs_Object * + } + + } else { +- +-#ifdef CONFIG_YAFFS_WINCE +- /* Under WinCE can't do direct transfer. Need to use a local buffer. +- * This is because we otherwise screw up WinCE's memory mapper +- */ +- __u8 *localBuffer = yaffs_GetTempBuffer(dev, __LINE__); +-#ifdef CONFIG_YAFFS_WINCE +- yfsd_UnlockYAFFS(TRUE); +-#endif +- memcpy(localBuffer, buffer, dev->nDataBytesPerChunk); +-#ifdef CONFIG_YAFFS_WINCE +- yfsd_LockYAFFS(TRUE); +-#endif +- chunkWritten = +- yaffs_WriteChunkDataToObject(in, chunk, localBuffer, +- dev->nDataBytesPerChunk, +- 0); +- yaffs_ReleaseTempBuffer(dev, localBuffer, __LINE__); +-#else + /* A full chunk. Write directly from the supplied buffer. */ ++ ++ ++ + chunkWritten = + yaffs_WriteChunkDataToObject(in, chunk, buffer, + dev->nDataBytesPerChunk, + 0); +-#endif ++ + /* Since we've overwritten the cached data, we better invalidate it. */ + yaffs_InvalidateChunkCache(in, chunk); + } +@@ -4886,9 +4913,8 @@ int yaffs_WriteDataToFile(yaffs_Object * + + /* Update file object */ + +- if ((startOfWrite + nDone) > in->variant.fileVariant.fileSize) { ++ if ((startOfWrite + nDone) > in->variant.fileVariant.fileSize) + in->variant.fileVariant.fileSize = (startOfWrite + nDone); +- } + + in->dirty = 1; + +@@ -4898,7 +4924,7 @@ int yaffs_WriteDataToFile(yaffs_Object * + + /* ---------------------- File resizing stuff ------------------ */ + +-static void yaffs_PruneResizedChunks(yaffs_Object * in, int newSize) ++static void yaffs_PruneResizedChunks(yaffs_Object *in, int newSize) + { + + yaffs_Device *dev = in->myDev; +@@ -4939,11 +4965,11 @@ static void yaffs_PruneResizedChunks(yaf + + } + +-int yaffs_ResizeFile(yaffs_Object * in, loff_t newSize) ++int yaffs_ResizeFile(yaffs_Object *in, loff_t newSize) + { + + int oldFileSize = in->variant.fileVariant.fileSize; +- int newSizeOfPartialChunk; ++ __u32 newSizeOfPartialChunk; + int newFullChunks; + + yaffs_Device *dev = in->myDev; +@@ -4955,13 +4981,11 @@ int yaffs_ResizeFile(yaffs_Object * in, + + yaffs_CheckGarbageCollection(dev); + +- if (in->variantType != YAFFS_OBJECT_TYPE_FILE) { +- return yaffs_GetFileSize(in); +- } ++ if (in->variantType != YAFFS_OBJECT_TYPE_FILE) ++ return YAFFS_FAIL; + +- if (newSize == oldFileSize) { +- return oldFileSize; +- } ++ if (newSize == oldFileSize) ++ return YAFFS_OK; + + if (newSize < oldFileSize) { + +@@ -4994,21 +5018,20 @@ int yaffs_ResizeFile(yaffs_Object * in, + } + + +- + /* Write a new object header. + * show we've shrunk the file, if need be + * Do this only if the file is not in the deleted directories. + */ +- if (in->parent->objectId != YAFFS_OBJECTID_UNLINKED && +- in->parent->objectId != YAFFS_OBJECTID_DELETED) { ++ if (in->parent && ++ in->parent->objectId != YAFFS_OBJECTID_UNLINKED && ++ in->parent->objectId != YAFFS_OBJECTID_DELETED) + yaffs_UpdateObjectHeader(in, NULL, 0, + (newSize < oldFileSize) ? 1 : 0, 0); +- } + +- return newSize; ++ return YAFFS_OK; + } + +-loff_t yaffs_GetFileSize(yaffs_Object * obj) ++loff_t yaffs_GetFileSize(yaffs_Object *obj) + { + obj = yaffs_GetEquivalentObject(obj); + +@@ -5024,7 +5047,7 @@ loff_t yaffs_GetFileSize(yaffs_Object * + + + +-int yaffs_FlushFile(yaffs_Object * in, int updateTime) ++int yaffs_FlushFile(yaffs_Object *in, int updateTime) + { + int retVal; + if (in->dirty) { +@@ -5039,9 +5062,8 @@ int yaffs_FlushFile(yaffs_Object * in, i + #endif + } + +- retVal = +- (yaffs_UpdateObjectHeader(in, NULL, 0, 0, 0) >= +- 0) ? YAFFS_OK : YAFFS_FAIL; ++ retVal = (yaffs_UpdateObjectHeader(in, NULL, 0, 0, 0) >= ++ 0) ? YAFFS_OK : YAFFS_FAIL; + } else { + retVal = YAFFS_OK; + } +@@ -5050,7 +5072,7 @@ int yaffs_FlushFile(yaffs_Object * in, i + + } + +-static int yaffs_DoGenericObjectDeletion(yaffs_Object * in) ++static int yaffs_DoGenericObjectDeletion(yaffs_Object *in) + { + + /* First off, invalidate the file's data in the cache, without flushing. */ +@@ -5058,13 +5080,13 @@ static int yaffs_DoGenericObjectDeletion + + if (in->myDev->isYaffs2 && (in->parent != in->myDev->deletedDir)) { + /* Move to the unlinked directory so we have a record that it was deleted. */ +- yaffs_ChangeObjectName(in, in->myDev->deletedDir,"deleted", 0, 0); ++ yaffs_ChangeObjectName(in, in->myDev->deletedDir, _Y("deleted"), 0, 0); + + } + + yaffs_RemoveObjectFromDirectory(in); +- yaffs_DeleteChunk(in->myDev, in->chunkId, 1, __LINE__); +- in->chunkId = -1; ++ yaffs_DeleteChunk(in->myDev, in->hdrChunk, 1, __LINE__); ++ in->hdrChunk = 0; + + yaffs_FreeObject(in); + return YAFFS_OK; +@@ -5075,62 +5097,63 @@ static int yaffs_DoGenericObjectDeletion + * and the inode associated with the file. + * It does not delete the links associated with the file. + */ +-static int yaffs_UnlinkFile(yaffs_Object * in) ++static int yaffs_UnlinkFileIfNeeded(yaffs_Object *in) + { + + int retVal; + int immediateDeletion = 0; + +- if (1) { + #ifdef __KERNEL__ +- if (!in->myInode) { +- immediateDeletion = 1; +- +- } ++ if (!in->myInode) ++ immediateDeletion = 1; + #else +- if (in->inUse <= 0) { +- immediateDeletion = 1; +- +- } ++ if (in->inUse <= 0) ++ immediateDeletion = 1; + #endif +- if (immediateDeletion) { +- retVal = +- yaffs_ChangeObjectName(in, in->myDev->deletedDir, +- "deleted", 0, 0); +- T(YAFFS_TRACE_TRACING, +- (TSTR("yaffs: immediate deletion of file %d" TENDSTR), +- in->objectId)); +- in->deleted = 1; +- in->myDev->nDeletedFiles++; +- if (0 && in->myDev->isYaffs2) { +- yaffs_ResizeFile(in, 0); +- } +- yaffs_SoftDeleteFile(in); +- } else { +- retVal = +- yaffs_ChangeObjectName(in, in->myDev->unlinkedDir, +- "unlinked", 0, 0); +- } + ++ if (immediateDeletion) { ++ retVal = ++ yaffs_ChangeObjectName(in, in->myDev->deletedDir, ++ _Y("deleted"), 0, 0); ++ T(YAFFS_TRACE_TRACING, ++ (TSTR("yaffs: immediate deletion of file %d" TENDSTR), ++ in->objectId)); ++ in->deleted = 1; ++ in->myDev->nDeletedFiles++; ++ if (1 || in->myDev->isYaffs2) ++ yaffs_ResizeFile(in, 0); ++ yaffs_SoftDeleteFile(in); ++ } else { ++ retVal = ++ yaffs_ChangeObjectName(in, in->myDev->unlinkedDir, ++ _Y("unlinked"), 0, 0); + } ++ ++ + return retVal; + } + +-int yaffs_DeleteFile(yaffs_Object * in) ++int yaffs_DeleteFile(yaffs_Object *in) + { + int retVal = YAFFS_OK; ++ int deleted = in->deleted; ++ ++ yaffs_ResizeFile(in, 0); + + if (in->nDataChunks > 0) { +- /* Use soft deletion if there is data in the file */ +- if (!in->unlinked) { +- retVal = yaffs_UnlinkFile(in); +- } ++ /* Use soft deletion if there is data in the file. ++ * That won't be the case if it has been resized to zero. ++ */ ++ if (!in->unlinked) ++ retVal = yaffs_UnlinkFileIfNeeded(in); ++ + if (retVal == YAFFS_OK && in->unlinked && !in->deleted) { + in->deleted = 1; ++ deleted = 1; + in->myDev->nDeletedFiles++; + yaffs_SoftDeleteFile(in); + } +- return in->deleted ? YAFFS_OK : YAFFS_FAIL; ++ return deleted ? YAFFS_OK : YAFFS_FAIL; + } else { + /* The file has no data chunks so we toss it immediately */ + yaffs_FreeTnode(in->myDev, in->variant.fileVariant.top); +@@ -5141,62 +5164,75 @@ int yaffs_DeleteFile(yaffs_Object * in) + } + } + +-static int yaffs_DeleteDirectory(yaffs_Object * in) ++static int yaffs_DeleteDirectory(yaffs_Object *in) + { + /* First check that the directory is empty. */ +- if (list_empty(&in->variant.directoryVariant.children)) { ++ if (ylist_empty(&in->variant.directoryVariant.children)) + return yaffs_DoGenericObjectDeletion(in); +- } + + return YAFFS_FAIL; + + } + +-static int yaffs_DeleteSymLink(yaffs_Object * in) ++static int yaffs_DeleteSymLink(yaffs_Object *in) + { + YFREE(in->variant.symLinkVariant.alias); + + return yaffs_DoGenericObjectDeletion(in); + } + +-static int yaffs_DeleteHardLink(yaffs_Object * in) ++static int yaffs_DeleteHardLink(yaffs_Object *in) + { + /* remove this hardlink from the list assocaited with the equivalent + * object + */ +- list_del(&in->hardLinks); ++ ylist_del_init(&in->hardLinks); + return yaffs_DoGenericObjectDeletion(in); + } + +-static void yaffs_DestroyObject(yaffs_Object * obj) ++int yaffs_DeleteObject(yaffs_Object *obj) + { ++int retVal = -1; + switch (obj->variantType) { + case YAFFS_OBJECT_TYPE_FILE: +- yaffs_DeleteFile(obj); ++ retVal = yaffs_DeleteFile(obj); + break; + case YAFFS_OBJECT_TYPE_DIRECTORY: +- yaffs_DeleteDirectory(obj); ++ return yaffs_DeleteDirectory(obj); + break; + case YAFFS_OBJECT_TYPE_SYMLINK: +- yaffs_DeleteSymLink(obj); ++ retVal = yaffs_DeleteSymLink(obj); + break; + case YAFFS_OBJECT_TYPE_HARDLINK: +- yaffs_DeleteHardLink(obj); ++ retVal = yaffs_DeleteHardLink(obj); + break; + case YAFFS_OBJECT_TYPE_SPECIAL: +- yaffs_DoGenericObjectDeletion(obj); ++ retVal = yaffs_DoGenericObjectDeletion(obj); + break; + case YAFFS_OBJECT_TYPE_UNKNOWN: ++ retVal = 0; + break; /* should not happen. */ + } ++ ++ return retVal; + } + +-static int yaffs_UnlinkWorker(yaffs_Object * obj) ++static int yaffs_UnlinkWorker(yaffs_Object *obj) + { + ++ int immediateDeletion = 0; ++ ++#ifdef __KERNEL__ ++ if (!obj->myInode) ++ immediateDeletion = 1; ++#else ++ if (obj->inUse <= 0) ++ immediateDeletion = 1; ++#endif ++ + if (obj->variantType == YAFFS_OBJECT_TYPE_HARDLINK) { + return yaffs_DeleteHardLink(obj); +- } else if (!list_empty(&obj->hardLinks)) { ++ } else if (!ylist_empty(&obj->hardLinks)) { + /* Curve ball: We're unlinking an object that has a hardlink. + * + * This problem arises because we are not strictly following +@@ -5215,24 +5251,24 @@ static int yaffs_UnlinkWorker(yaffs_Obje + int retVal; + YCHAR name[YAFFS_MAX_NAME_LENGTH + 1]; + +- hl = list_entry(obj->hardLinks.next, yaffs_Object, hardLinks); ++ hl = ylist_entry(obj->hardLinks.next, yaffs_Object, hardLinks); + +- list_del_init(&hl->hardLinks); +- list_del_init(&hl->siblings); ++ ylist_del_init(&hl->hardLinks); ++ ylist_del_init(&hl->siblings); + + yaffs_GetObjectName(hl, name, YAFFS_MAX_NAME_LENGTH + 1); + + retVal = yaffs_ChangeObjectName(obj, hl->parent, name, 0, 0); + +- if (retVal == YAFFS_OK) { ++ if (retVal == YAFFS_OK) + retVal = yaffs_DoGenericObjectDeletion(hl); +- } ++ + return retVal; + +- } else { ++ } else if (immediateDeletion) { + switch (obj->variantType) { + case YAFFS_OBJECT_TYPE_FILE: +- return yaffs_UnlinkFile(obj); ++ return yaffs_DeleteFile(obj); + break; + case YAFFS_OBJECT_TYPE_DIRECTORY: + return yaffs_DeleteDirectory(obj); +@@ -5248,21 +5284,22 @@ static int yaffs_UnlinkWorker(yaffs_Obje + default: + return YAFFS_FAIL; + } +- } ++ } else ++ return yaffs_ChangeObjectName(obj, obj->myDev->unlinkedDir, ++ _Y("unlinked"), 0, 0); + } + + +-static int yaffs_UnlinkObject( yaffs_Object *obj) ++static int yaffs_UnlinkObject(yaffs_Object *obj) + { + +- if (obj && obj->unlinkAllowed) { ++ if (obj && obj->unlinkAllowed) + return yaffs_UnlinkWorker(obj); +- } + + return YAFFS_FAIL; + + } +-int yaffs_Unlink(yaffs_Object * dir, const YCHAR * name) ++int yaffs_Unlink(yaffs_Object *dir, const YCHAR *name) + { + yaffs_Object *obj; + +@@ -5272,8 +5309,8 @@ int yaffs_Unlink(yaffs_Object * dir, con + + /*----------------------- Initialisation Scanning ---------------------- */ + +-static void yaffs_HandleShadowedObject(yaffs_Device * dev, int objId, +- int backwardScanning) ++static void yaffs_HandleShadowedObject(yaffs_Device *dev, int objId, ++ int backwardScanning) + { + yaffs_Object *obj; + +@@ -5286,9 +5323,8 @@ static void yaffs_HandleShadowedObject(y + /* Handle YAFFS2 case (backward scanning) + * If the shadowed object exists then ignore. + */ +- if (yaffs_FindObjectByNumber(dev, objId)) { ++ if (yaffs_FindObjectByNumber(dev, objId)) + return; +- } + } + + /* Let's create it (if it does not exist) assuming it is a file so that it can do shrinking etc. +@@ -5297,6 +5333,8 @@ static void yaffs_HandleShadowedObject(y + obj = + yaffs_FindOrCreateObjectByNumber(dev, objId, + YAFFS_OBJECT_TYPE_FILE); ++ if (!obj) ++ return; + yaffs_AddObjectToDirectory(dev->unlinkedDir, obj); + obj->variant.fileVariant.shrinkSize = 0; + obj->valid = 1; /* So that we don't read any other info for this file */ +@@ -5325,44 +5363,77 @@ static void yaffs_HardlinkFixup(yaffs_De + if (in) { + /* Add the hardlink pointers */ + hl->variant.hardLinkVariant.equivalentObject = in; +- list_add(&hl->hardLinks, &in->hardLinks); ++ ylist_add(&hl->hardLinks, &in->hardLinks); + } else { + /* Todo Need to report/handle this better. + * Got a problem... hardlink to a non-existant object + */ + hl->variant.hardLinkVariant.equivalentObject = NULL; +- INIT_LIST_HEAD(&hl->hardLinks); ++ YINIT_LIST_HEAD(&hl->hardLinks); + + } +- + } ++} ++ ++ + ++ ++ ++static int ybicmp(const void *a, const void *b) ++{ ++ register int aseq = ((yaffs_BlockIndex *)a)->seq; ++ register int bseq = ((yaffs_BlockIndex *)b)->seq; ++ register int ablock = ((yaffs_BlockIndex *)a)->block; ++ register int bblock = ((yaffs_BlockIndex *)b)->block; ++ if (aseq == bseq) ++ return ablock - bblock; ++ else ++ return aseq - bseq; + } + + ++struct yaffs_ShadowFixerStruct { ++ int objectId; ++ int shadowedId; ++ struct yaffs_ShadowFixerStruct *next; ++}; ++ + ++static void yaffs_StripDeletedObjects(yaffs_Device *dev) ++{ ++ /* ++ * Sort out state of unlinked and deleted objects after scanning. ++ */ ++ struct ylist_head *i; ++ struct ylist_head *n; ++ yaffs_Object *l; + ++ /* Soft delete all the unlinked files */ ++ ylist_for_each_safe(i, n, ++ &dev->unlinkedDir->variant.directoryVariant.children) { ++ if (i) { ++ l = ylist_entry(i, yaffs_Object, siblings); ++ yaffs_DeleteObject(l); ++ } ++ } + +-static int ybicmp(const void *a, const void *b){ +- register int aseq = ((yaffs_BlockIndex *)a)->seq; +- register int bseq = ((yaffs_BlockIndex *)b)->seq; +- register int ablock = ((yaffs_BlockIndex *)a)->block; +- register int bblock = ((yaffs_BlockIndex *)b)->block; +- if( aseq == bseq ) +- return ablock - bblock; +- else +- return aseq - bseq; ++ ylist_for_each_safe(i, n, ++ &dev->deletedDir->variant.directoryVariant.children) { ++ if (i) { ++ l = ylist_entry(i, yaffs_Object, siblings); ++ yaffs_DeleteObject(l); ++ } ++ } + + } + +-static int yaffs_Scan(yaffs_Device * dev) ++static int yaffs_Scan(yaffs_Device *dev) + { + yaffs_ExtendedTags tags; + int blk; + int blockIterator; + int startIterator; + int endIterator; +- int nBlocksToScan = 0; + int result; + + int chunk; +@@ -5371,26 +5442,19 @@ static int yaffs_Scan(yaffs_Device * dev + yaffs_BlockState state; + yaffs_Object *hardList = NULL; + yaffs_BlockInfo *bi; +- int sequenceNumber; ++ __u32 sequenceNumber; + yaffs_ObjectHeader *oh; + yaffs_Object *in; + yaffs_Object *parent; +- int nBlocks = dev->internalEndBlock - dev->internalStartBlock + 1; + + int alloc_failed = 0; + ++ struct yaffs_ShadowFixerStruct *shadowFixerList = NULL; ++ + + __u8 *chunkData; + +- yaffs_BlockIndex *blockIndex = NULL; + +- if (dev->isYaffs2) { +- T(YAFFS_TRACE_SCAN, +- (TSTR("yaffs_Scan is not for YAFFS2!" TENDSTR))); +- return YAFFS_FAIL; +- } +- +- //TODO Throw all the yaffs2 stuuf out of yaffs_Scan since it is only for yaffs1 format. + + T(YAFFS_TRACE_SCAN, + (TSTR("yaffs_Scan starts intstartblk %d intendblk %d..." TENDSTR), +@@ -5400,12 +5464,6 @@ static int yaffs_Scan(yaffs_Device * dev + + dev->sequenceNumber = YAFFS_LOWEST_SEQUENCE_NUMBER; + +- if (dev->isYaffs2) { +- blockIndex = YMALLOC(nBlocks * sizeof(yaffs_BlockIndex)); +- if(!blockIndex) +- return YAFFS_FAIL; +- } +- + /* Scan all the blocks to determine their state */ + for (blk = dev->internalStartBlock; blk <= dev->internalEndBlock; blk++) { + bi = yaffs_GetBlockInfo(dev, blk); +@@ -5418,6 +5476,9 @@ static int yaffs_Scan(yaffs_Device * dev + bi->blockState = state; + bi->sequenceNumber = sequenceNumber; + ++ if (bi->sequenceNumber == YAFFS_SEQUENCE_BAD_BLOCK) ++ bi->blockState = state = YAFFS_BLOCK_STATE_DEAD; ++ + T(YAFFS_TRACE_SCAN_DEBUG, + (TSTR("Block scanning block %d state %d seq %d" TENDSTR), blk, + state, sequenceNumber)); +@@ -5430,70 +5491,21 @@ static int yaffs_Scan(yaffs_Device * dev + (TSTR("Block empty " TENDSTR))); + dev->nErasedBlocks++; + dev->nFreeChunks += dev->nChunksPerBlock; +- } else if (state == YAFFS_BLOCK_STATE_NEEDS_SCANNING) { +- +- /* Determine the highest sequence number */ +- if (dev->isYaffs2 && +- sequenceNumber >= YAFFS_LOWEST_SEQUENCE_NUMBER && +- sequenceNumber < YAFFS_HIGHEST_SEQUENCE_NUMBER) { +- +- blockIndex[nBlocksToScan].seq = sequenceNumber; +- blockIndex[nBlocksToScan].block = blk; +- +- nBlocksToScan++; +- +- if (sequenceNumber >= dev->sequenceNumber) { +- dev->sequenceNumber = sequenceNumber; +- } +- } else if (dev->isYaffs2) { +- /* TODO: Nasty sequence number! */ +- T(YAFFS_TRACE_SCAN, +- (TSTR +- ("Block scanning block %d has bad sequence number %d" +- TENDSTR), blk, sequenceNumber)); +- +- } + } + } + +- /* Sort the blocks +- * Dungy old bubble sort for now... +- */ +- if (dev->isYaffs2) { +- yaffs_BlockIndex temp; +- int i; +- int j; +- +- for (i = 0; i < nBlocksToScan; i++) +- for (j = i + 1; j < nBlocksToScan; j++) +- if (blockIndex[i].seq > blockIndex[j].seq) { +- temp = blockIndex[j]; +- blockIndex[j] = blockIndex[i]; +- blockIndex[i] = temp; +- } +- } +- +- /* Now scan the blocks looking at the data. */ +- if (dev->isYaffs2) { +- startIterator = 0; +- endIterator = nBlocksToScan - 1; +- T(YAFFS_TRACE_SCAN_DEBUG, +- (TSTR("%d blocks to be scanned" TENDSTR), nBlocksToScan)); +- } else { +- startIterator = dev->internalStartBlock; +- endIterator = dev->internalEndBlock; +- } ++ startIterator = dev->internalStartBlock; ++ endIterator = dev->internalEndBlock; + + /* For each block.... */ + for (blockIterator = startIterator; !alloc_failed && blockIterator <= endIterator; + blockIterator++) { + +- if (dev->isYaffs2) { +- /* get the block to scan in the correct order */ +- blk = blockIndex[blockIterator].block; +- } else { +- blk = blockIterator; +- } ++ YYIELD(); ++ ++ YYIELD(); ++ ++ blk = blockIterator; + + bi = yaffs_GetBlockInfo(dev, blk); + state = bi->blockState; +@@ -5511,7 +5523,7 @@ static int yaffs_Scan(yaffs_Device * dev + + /* Let's have a good look at this chunk... */ + +- if (!dev->isYaffs2 && tags.chunkDeleted) { ++ if (tags.eccResult == YAFFS_ECC_RESULT_UNFIXED || tags.chunkDeleted) { + /* YAFFS1 only... + * A deleted chunk + */ +@@ -5540,18 +5552,6 @@ static int yaffs_Scan(yaffs_Device * dev + dev->allocationBlockFinder = blk; + /* Set it to here to encourage the allocator to go forth from here. */ + +- /* Yaffs2 sanity check: +- * This should be the one with the highest sequence number +- */ +- if (dev->isYaffs2 +- && (dev->sequenceNumber != +- bi->sequenceNumber)) { +- T(YAFFS_TRACE_ALWAYS, +- (TSTR +- ("yaffs: Allocation block %d was not highest sequence id:" +- " block seq = %d, dev seq = %d" +- TENDSTR), blk,bi->sequenceNumber,dev->sequenceNumber)); +- } + } + + dev->nFreeChunks += (dev->nChunksPerBlock - c); +@@ -5570,11 +5570,11 @@ static int yaffs_Scan(yaffs_Device * dev + * the same chunkId). + */ + +- if(!in) ++ if (!in) + alloc_failed = 1; + +- if(in){ +- if(!yaffs_PutChunkIntoFile(in, tags.chunkId, chunk,1)) ++ if (in) { ++ if (!yaffs_PutChunkIntoFile(in, tags.chunkId, chunk, 1)) + alloc_failed = 1; + } + +@@ -5617,7 +5617,7 @@ static int yaffs_Scan(yaffs_Device * dev + * deleted, and worse still it has changed type. Delete the old object. + */ + +- yaffs_DestroyObject(in); ++ yaffs_DeleteObject(in); + + in = 0; + } +@@ -5627,14 +5627,20 @@ static int yaffs_Scan(yaffs_Device * dev + objectId, + oh->type); + +- if(!in) ++ if (!in) + alloc_failed = 1; + + if (in && oh->shadowsObject > 0) { +- yaffs_HandleShadowedObject(dev, +- oh-> +- shadowsObject, +- 0); ++ ++ struct yaffs_ShadowFixerStruct *fixer; ++ fixer = YMALLOC(sizeof(struct yaffs_ShadowFixerStruct)); ++ if (fixer) { ++ fixer->next = shadowFixerList; ++ shadowFixerList = fixer; ++ fixer->objectId = tags.objectId; ++ fixer->shadowedId = oh->shadowsObject; ++ } ++ + } + + if (in && in->valid) { +@@ -5643,12 +5649,10 @@ static int yaffs_Scan(yaffs_Device * dev + unsigned existingSerial = in->serial; + unsigned newSerial = tags.serialNumber; + +- if (dev->isYaffs2 || +- ((existingSerial + 1) & 3) == +- newSerial) { ++ if (((existingSerial + 1) & 3) == newSerial) { + /* Use new one - destroy the exisiting one */ + yaffs_DeleteChunk(dev, +- in->chunkId, ++ in->hdrChunk, + 1, __LINE__); + in->valid = 0; + } else { +@@ -5681,7 +5685,8 @@ static int yaffs_Scan(yaffs_Device * dev + in->yst_ctime = oh->yst_ctime; + in->yst_rdev = oh->yst_rdev; + #endif +- in->chunkId = chunk; ++ in->hdrChunk = chunk; ++ in->serial = tags.serialNumber; + + } else if (in && !in->valid) { + /* we need to load this info */ +@@ -5705,7 +5710,8 @@ static int yaffs_Scan(yaffs_Device * dev + in->yst_ctime = oh->yst_ctime; + in->yst_rdev = oh->yst_rdev; + #endif +- in->chunkId = chunk; ++ in->hdrChunk = chunk; ++ in->serial = tags.serialNumber; + + yaffs_SetObjectName(in, oh->name); + in->dirty = 0; +@@ -5718,25 +5724,25 @@ static int yaffs_Scan(yaffs_Device * dev + yaffs_FindOrCreateObjectByNumber + (dev, oh->parentObjectId, + YAFFS_OBJECT_TYPE_DIRECTORY); +- if (parent->variantType == ++ if (!parent) ++ alloc_failed = 1; ++ if (parent && parent->variantType == + YAFFS_OBJECT_TYPE_UNKNOWN) { + /* Set up as a directory */ + parent->variantType = +- YAFFS_OBJECT_TYPE_DIRECTORY; +- INIT_LIST_HEAD(&parent->variant. +- directoryVariant. +- children); +- } else if (parent->variantType != +- YAFFS_OBJECT_TYPE_DIRECTORY) +- { ++ YAFFS_OBJECT_TYPE_DIRECTORY; ++ YINIT_LIST_HEAD(&parent->variant. ++ directoryVariant. ++ children); ++ } else if (!parent || parent->variantType != ++ YAFFS_OBJECT_TYPE_DIRECTORY) { + /* Hoosterman, another problem.... + * We're trying to use a non-directory as a directory + */ + + T(YAFFS_TRACE_ERROR, + (TSTR +- ("yaffs tragedy: attempting to use non-directory as" +- " a directory in scan. Put in lost+found." ++ ("yaffs tragedy: attempting to use non-directory as a directory in scan. Put in lost+found." + TENDSTR))); + parent = dev->lostNFoundDir; + } +@@ -5760,15 +5766,6 @@ static int yaffs_Scan(yaffs_Device * dev + /* Todo got a problem */ + break; + case YAFFS_OBJECT_TYPE_FILE: +- if (dev->isYaffs2 +- && oh->isShrink) { +- /* Prune back the shrunken chunks */ +- yaffs_PruneResizedChunks +- (in, oh->fileSize); +- /* Mark the block as having a shrinkHeader */ +- bi->hasShrinkHeader = 1; +- } +- + if (dev->useHeaderFileSize) + + in->variant.fileVariant. +@@ -5778,11 +5775,11 @@ static int yaffs_Scan(yaffs_Device * dev + break; + case YAFFS_OBJECT_TYPE_HARDLINK: + in->variant.hardLinkVariant. +- equivalentObjectId = +- oh->equivalentObjectId; ++ equivalentObjectId = ++ oh->equivalentObjectId; + in->hardLinks.next = +- (struct list_head *) +- hardList; ++ (struct ylist_head *) ++ hardList; + hardList = in; + break; + case YAFFS_OBJECT_TYPE_DIRECTORY: +@@ -5794,15 +5791,17 @@ static int yaffs_Scan(yaffs_Device * dev + case YAFFS_OBJECT_TYPE_SYMLINK: + in->variant.symLinkVariant.alias = + yaffs_CloneString(oh->alias); +- if(!in->variant.symLinkVariant.alias) ++ if (!in->variant.symLinkVariant.alias) + alloc_failed = 1; + break; + } + ++/* + if (parent == dev->deletedDir) { + yaffs_DestroyObject(in); + bi->hasShrinkHeader = 1; + } ++*/ + } + } + } +@@ -5823,10 +5822,6 @@ static int yaffs_Scan(yaffs_Device * dev + + } + +- if (blockIndex) { +- YFREE(blockIndex); +- } +- + + /* Ok, we've done all the scanning. + * Fix up the hard link chains. +@@ -5834,32 +5829,36 @@ static int yaffs_Scan(yaffs_Device * dev + * hardlinks. + */ + +- yaffs_HardlinkFixup(dev,hardList); ++ yaffs_HardlinkFixup(dev, hardList); + +- /* Handle the unlinked files. Since they were left in an unlinked state we should +- * just delete them. +- */ ++ /* Fix up any shadowed objects */ + { +- struct list_head *i; +- struct list_head *n; ++ struct yaffs_ShadowFixerStruct *fixer; ++ yaffs_Object *obj; + +- yaffs_Object *l; +- /* Soft delete all the unlinked files */ +- list_for_each_safe(i, n, +- &dev->unlinkedDir->variant.directoryVariant. +- children) { +- if (i) { +- l = list_entry(i, yaffs_Object, siblings); +- yaffs_DestroyObject(l); +- } ++ while (shadowFixerList) { ++ fixer = shadowFixerList; ++ shadowFixerList = fixer->next; ++ /* Complete the rename transaction by deleting the shadowed object ++ * then setting the object header to unshadowed. ++ */ ++ obj = yaffs_FindObjectByNumber(dev, fixer->shadowedId); ++ if (obj) ++ yaffs_DeleteObject(obj); ++ ++ obj = yaffs_FindObjectByNumber(dev, fixer->objectId); ++ ++ if (obj) ++ yaffs_UpdateObjectHeader(obj, NULL, 1, 0, 0); ++ ++ YFREE(fixer); + } + } + + yaffs_ReleaseTempBuffer(dev, chunkData, __LINE__); + +- if(alloc_failed){ ++ if (alloc_failed) + return YAFFS_FAIL; +- } + + T(YAFFS_TRACE_SCAN, (TSTR("yaffs_Scan ends" TENDSTR))); + +@@ -5871,25 +5870,27 @@ static void yaffs_CheckObjectDetailsLoad + { + __u8 *chunkData; + yaffs_ObjectHeader *oh; +- yaffs_Device *dev = in->myDev; ++ yaffs_Device *dev; + yaffs_ExtendedTags tags; + int result; + int alloc_failed = 0; + +- if(!in) ++ if (!in) + return; + ++ dev = in->myDev; ++ + #if 0 +- T(YAFFS_TRACE_SCAN,(TSTR("details for object %d %s loaded" TENDSTR), ++ T(YAFFS_TRACE_SCAN, (TSTR("details for object %d %s loaded" TENDSTR), + in->objectId, + in->lazyLoaded ? "not yet" : "already")); + #endif + +- if(in->lazyLoaded){ ++ if (in->lazyLoaded && in->hdrChunk > 0) { + in->lazyLoaded = 0; + chunkData = yaffs_GetTempBuffer(dev, __LINE__); + +- result = yaffs_ReadChunkWithTagsFromNAND(dev,in->chunkId,chunkData,&tags); ++ result = yaffs_ReadChunkWithTagsFromNAND(dev, in->hdrChunk, chunkData, &tags); + oh = (yaffs_ObjectHeader *) chunkData; + + in->yst_mode = oh->yst_mode; +@@ -5911,18 +5912,18 @@ static void yaffs_CheckObjectDetailsLoad + #endif + yaffs_SetObjectName(in, oh->name); + +- if(in->variantType == YAFFS_OBJECT_TYPE_SYMLINK){ +- in->variant.symLinkVariant.alias = ++ if (in->variantType == YAFFS_OBJECT_TYPE_SYMLINK) { ++ in->variant.symLinkVariant.alias = + yaffs_CloneString(oh->alias); +- if(!in->variant.symLinkVariant.alias) ++ if (!in->variant.symLinkVariant.alias) + alloc_failed = 1; /* Not returned to caller */ + } + +- yaffs_ReleaseTempBuffer(dev,chunkData, __LINE__); ++ yaffs_ReleaseTempBuffer(dev, chunkData, __LINE__); + } + } + +-static int yaffs_ScanBackwards(yaffs_Device * dev) ++static int yaffs_ScanBackwards(yaffs_Device *dev) + { + yaffs_ExtendedTags tags; + int blk; +@@ -5938,7 +5939,7 @@ static int yaffs_ScanBackwards(yaffs_Dev + yaffs_BlockState state; + yaffs_Object *hardList = NULL; + yaffs_BlockInfo *bi; +- int sequenceNumber; ++ __u32 sequenceNumber; + yaffs_ObjectHeader *oh; + yaffs_Object *in; + yaffs_Object *parent; +@@ -5972,12 +5973,12 @@ static int yaffs_ScanBackwards(yaffs_Dev + + blockIndex = YMALLOC(nBlocks * sizeof(yaffs_BlockIndex)); + +- if(!blockIndex) { ++ if (!blockIndex) { + blockIndex = YMALLOC_ALT(nBlocks * sizeof(yaffs_BlockIndex)); + altBlockIndex = 1; + } + +- if(!blockIndex) { ++ if (!blockIndex) { + T(YAFFS_TRACE_SCAN, + (TSTR("yaffs_Scan() could not allocate block index!" TENDSTR))); + return YAFFS_FAIL; +@@ -5999,15 +6000,17 @@ static int yaffs_ScanBackwards(yaffs_Dev + bi->blockState = state; + bi->sequenceNumber = sequenceNumber; + +- if(bi->sequenceNumber == YAFFS_SEQUENCE_CHECKPOINT_DATA) ++ if (bi->sequenceNumber == YAFFS_SEQUENCE_CHECKPOINT_DATA) + bi->blockState = state = YAFFS_BLOCK_STATE_CHECKPOINT; ++ if (bi->sequenceNumber == YAFFS_SEQUENCE_BAD_BLOCK) ++ bi->blockState = state = YAFFS_BLOCK_STATE_DEAD; + + T(YAFFS_TRACE_SCAN_DEBUG, + (TSTR("Block scanning block %d state %d seq %d" TENDSTR), blk, + state, sequenceNumber)); + + +- if(state == YAFFS_BLOCK_STATE_CHECKPOINT){ ++ if (state == YAFFS_BLOCK_STATE_CHECKPOINT) { + dev->blocksInCheckpoint++; + + } else if (state == YAFFS_BLOCK_STATE_DEAD) { +@@ -6021,8 +6024,7 @@ static int yaffs_ScanBackwards(yaffs_Dev + } else if (state == YAFFS_BLOCK_STATE_NEEDS_SCANNING) { + + /* Determine the highest sequence number */ +- if (dev->isYaffs2 && +- sequenceNumber >= YAFFS_LOWEST_SEQUENCE_NUMBER && ++ if (sequenceNumber >= YAFFS_LOWEST_SEQUENCE_NUMBER && + sequenceNumber < YAFFS_HIGHEST_SEQUENCE_NUMBER) { + + blockIndex[nBlocksToScan].seq = sequenceNumber; +@@ -6030,10 +6032,9 @@ static int yaffs_ScanBackwards(yaffs_Dev + + nBlocksToScan++; + +- if (sequenceNumber >= dev->sequenceNumber) { ++ if (sequenceNumber >= dev->sequenceNumber) + dev->sequenceNumber = sequenceNumber; +- } +- } else if (dev->isYaffs2) { ++ } else { + /* TODO: Nasty sequence number! */ + T(YAFFS_TRACE_SCAN, + (TSTR +@@ -6053,11 +6054,13 @@ static int yaffs_ScanBackwards(yaffs_Dev + + /* Sort the blocks */ + #ifndef CONFIG_YAFFS_USE_OWN_SORT +- yaffs_qsort(blockIndex, nBlocksToScan, +- sizeof(yaffs_BlockIndex), ybicmp); ++ { ++ /* Use qsort now. */ ++ yaffs_qsort(blockIndex, nBlocksToScan, sizeof(yaffs_BlockIndex), ybicmp); ++ } + #else + { +- /* Dungy old bubble sort... */ ++ /* Dungy old bubble sort... */ + + yaffs_BlockIndex temp; + int i; +@@ -6075,7 +6078,7 @@ static int yaffs_ScanBackwards(yaffs_Dev + + YYIELD(); + +- T(YAFFS_TRACE_SCAN, (TSTR("...done" TENDSTR))); ++ T(YAFFS_TRACE_SCAN, (TSTR("...done" TENDSTR))); + + /* Now scan the blocks looking at the data. */ + startIterator = 0; +@@ -6085,10 +6088,10 @@ static int yaffs_ScanBackwards(yaffs_Dev + + /* For each block.... backwards */ + for (blockIterator = endIterator; !alloc_failed && blockIterator >= startIterator; +- blockIterator--) { +- /* Cooperative multitasking! This loop can run for so ++ blockIterator--) { ++ /* Cooperative multitasking! This loop can run for so + long that watchdog timers expire. */ +- YYIELD(); ++ YYIELD(); + + /* get the block to scan in the correct order */ + blk = blockIndex[blockIterator].block; +@@ -6127,10 +6130,8 @@ static int yaffs_ScanBackwards(yaffs_Dev + * this is the one being allocated from + */ + +- if(foundChunksInBlock) +- { ++ if (foundChunksInBlock) { + /* This is a chunk that was skipped due to failing the erased check */ +- + } else if (c == 0) { + /* We're looking at the first chunk in the block so the block is unused */ + state = YAFFS_BLOCK_STATE_EMPTY; +@@ -6138,7 +6139,7 @@ static int yaffs_ScanBackwards(yaffs_Dev + } else { + if (state == YAFFS_BLOCK_STATE_NEEDS_SCANNING || + state == YAFFS_BLOCK_STATE_ALLOCATING) { +- if(dev->sequenceNumber == bi->sequenceNumber) { ++ if (dev->sequenceNumber == bi->sequenceNumber) { + /* this is the block being allocated from */ + + T(YAFFS_TRACE_SCAN, +@@ -6150,27 +6151,31 @@ static int yaffs_ScanBackwards(yaffs_Dev + dev->allocationBlock = blk; + dev->allocationPage = c; + dev->allocationBlockFinder = blk; +- } +- else { ++ } else { + /* This is a partially written block that is not + * the current allocation block. This block must have + * had a write failure, so set up for retirement. + */ + +- bi->needsRetiring = 1; ++ /* bi->needsRetiring = 1; ??? TODO */ + bi->gcPrioritise = 1; + + T(YAFFS_TRACE_ALWAYS, +- (TSTR("Partially written block %d being set for retirement" TENDSTR), ++ (TSTR("Partially written block %d detected" TENDSTR), + blk)); + } +- + } +- + } + + dev->nFreeChunks++; + ++ } else if (tags.eccResult == YAFFS_ECC_RESULT_UNFIXED) { ++ T(YAFFS_TRACE_SCAN, ++ (TSTR(" Unfixed ECC in chunk(%d:%d), chunk ignored"TENDSTR), ++ blk, c)); ++ ++ dev->nFreeChunks++; ++ + } else if (tags.chunkId > 0) { + /* chunkId > 0 so it is a data chunk... */ + unsigned int endpos; +@@ -6187,7 +6192,7 @@ static int yaffs_ScanBackwards(yaffs_Dev + tags. + objectId, + YAFFS_OBJECT_TYPE_FILE); +- if(!in){ ++ if (!in) { + /* Out of memory */ + alloc_failed = 1; + } +@@ -6197,8 +6202,8 @@ static int yaffs_ScanBackwards(yaffs_Dev + && chunkBase < + in->variant.fileVariant.shrinkSize) { + /* This has not been invalidated by a resize */ +- if(!yaffs_PutChunkIntoFile(in, tags.chunkId, +- chunk, -1)){ ++ if (!yaffs_PutChunkIntoFile(in, tags.chunkId, ++ chunk, -1)) { + alloc_failed = 1; + } + +@@ -6221,7 +6226,7 @@ static int yaffs_ScanBackwards(yaffs_Dev + scannedFileSize; + } + +- } else if(in) { ++ } else if (in) { + /* This chunk has been invalidated by a resize, so delete */ + yaffs_DeleteChunk(dev, chunk, 1, __LINE__); + +@@ -6242,6 +6247,8 @@ static int yaffs_ScanBackwards(yaffs_Dev + in = yaffs_FindOrCreateObjectByNumber + (dev, tags.objectId, + tags.extraObjectType); ++ if (!in) ++ alloc_failed = 1; + } + + if (!in || +@@ -6251,8 +6258,7 @@ static int yaffs_ScanBackwards(yaffs_Dev + tags.extraShadows || + (!in->valid && + (tags.objectId == YAFFS_OBJECTID_ROOT || +- tags.objectId == YAFFS_OBJECTID_LOSTNFOUND)) +- ) { ++ tags.objectId == YAFFS_OBJECTID_LOSTNFOUND))) { + + /* If we don't have valid info then we need to read the chunk + * TODO In future we can probably defer reading the chunk and +@@ -6266,8 +6272,17 @@ static int yaffs_ScanBackwards(yaffs_Dev + + oh = (yaffs_ObjectHeader *) chunkData; + +- if (!in) ++ if (dev->inbandTags) { ++ /* Fix up the header if they got corrupted by inband tags */ ++ oh->shadowsObject = oh->inbandShadowsObject; ++ oh->isShrink = oh->inbandIsShrink; ++ } ++ ++ if (!in) { + in = yaffs_FindOrCreateObjectByNumber(dev, tags.objectId, oh->type); ++ if (!in) ++ alloc_failed = 1; ++ } + + } + +@@ -6275,10 +6290,9 @@ static int yaffs_ScanBackwards(yaffs_Dev + /* TODO Hoosterman we have a problem! */ + T(YAFFS_TRACE_ERROR, + (TSTR +- ("yaffs tragedy: Could not make object for object %d " +- "at chunk %d during scan" ++ ("yaffs tragedy: Could not make object for object %d at chunk %d during scan" + TENDSTR), tags.objectId, chunk)); +- ++ continue; + } + + if (in->valid) { +@@ -6289,10 +6303,9 @@ static int yaffs_ScanBackwards(yaffs_Dev + + if ((in->variantType == YAFFS_OBJECT_TYPE_FILE) && + ((oh && +- oh-> type == YAFFS_OBJECT_TYPE_FILE)|| ++ oh->type == YAFFS_OBJECT_TYPE_FILE) || + (tags.extraHeaderInfoAvailable && +- tags.extraObjectType == YAFFS_OBJECT_TYPE_FILE)) +- ) { ++ tags.extraObjectType == YAFFS_OBJECT_TYPE_FILE))) { + __u32 thisSize = + (oh) ? oh->fileSize : tags. + extraFileLength; +@@ -6300,7 +6313,9 @@ static int yaffs_ScanBackwards(yaffs_Dev + (oh) ? oh-> + parentObjectId : tags. + extraParentObjectId; +- unsigned isShrink = ++ ++ ++ isShrink = + (oh) ? oh->isShrink : tags. + extraIsShrinkHeader; + +@@ -6323,9 +6338,8 @@ static int yaffs_ScanBackwards(yaffs_Dev + thisSize; + } + +- if (isShrink) { ++ if (isShrink) + bi->hasShrinkHeader = 1; +- } + + } + /* Use existing - destroy this one. */ +@@ -6333,6 +6347,17 @@ static int yaffs_ScanBackwards(yaffs_Dev + + } + ++ if (!in->valid && in->variantType != ++ (oh ? oh->type : tags.extraObjectType)) ++ T(YAFFS_TRACE_ERROR, ( ++ TSTR("yaffs tragedy: Bad object type, " ++ TCONT("%d != %d, for object %d at chunk ") ++ TCONT("%d during scan") ++ TENDSTR), oh ? ++ oh->type : tags.extraObjectType, ++ in->variantType, tags.objectId, ++ chunk)); ++ + if (!in->valid && + (tags.objectId == YAFFS_OBJECTID_ROOT || + tags.objectId == +@@ -6340,7 +6365,7 @@ static int yaffs_ScanBackwards(yaffs_Dev + /* We only load some info, don't fiddle with directory structure */ + in->valid = 1; + +- if(oh) { ++ if (oh) { + in->variantType = oh->type; + + in->yst_mode = oh->yst_mode; +@@ -6365,15 +6390,15 @@ static int yaffs_ScanBackwards(yaffs_Dev + in->lazyLoaded = 1; + } + +- in->chunkId = chunk; ++ in->hdrChunk = chunk; + + } else if (!in->valid) { + /* we need to load this info */ + + in->valid = 1; +- in->chunkId = chunk; ++ in->hdrChunk = chunk; + +- if(oh) { ++ if (oh) { + in->variantType = oh->type; + + in->yst_mode = oh->yst_mode; +@@ -6403,20 +6428,19 @@ static int yaffs_ScanBackwards(yaffs_Dev + yaffs_SetObjectName(in, oh->name); + parent = + yaffs_FindOrCreateObjectByNumber +- (dev, oh->parentObjectId, +- YAFFS_OBJECT_TYPE_DIRECTORY); ++ (dev, oh->parentObjectId, ++ YAFFS_OBJECT_TYPE_DIRECTORY); + + fileSize = oh->fileSize; +- isShrink = oh->isShrink; ++ isShrink = oh->isShrink; + equivalentObjectId = oh->equivalentObjectId; + +- } +- else { ++ } else { + in->variantType = tags.extraObjectType; + parent = + yaffs_FindOrCreateObjectByNumber +- (dev, tags.extraParentObjectId, +- YAFFS_OBJECT_TYPE_DIRECTORY); ++ (dev, tags.extraParentObjectId, ++ YAFFS_OBJECT_TYPE_DIRECTORY); + fileSize = tags.extraFileLength; + isShrink = tags.extraIsShrinkHeader; + equivalentObjectId = tags.extraEquivalentObjectId; +@@ -6425,29 +6449,30 @@ static int yaffs_ScanBackwards(yaffs_Dev + } + in->dirty = 0; + ++ if (!parent) ++ alloc_failed = 1; ++ + /* directory stuff... + * hook up to parent + */ + +- if (parent->variantType == ++ if (parent && parent->variantType == + YAFFS_OBJECT_TYPE_UNKNOWN) { + /* Set up as a directory */ + parent->variantType = +- YAFFS_OBJECT_TYPE_DIRECTORY; +- INIT_LIST_HEAD(&parent->variant. +- directoryVariant. +- children); +- } else if (parent->variantType != +- YAFFS_OBJECT_TYPE_DIRECTORY) +- { ++ YAFFS_OBJECT_TYPE_DIRECTORY; ++ YINIT_LIST_HEAD(&parent->variant. ++ directoryVariant. ++ children); ++ } else if (!parent || parent->variantType != ++ YAFFS_OBJECT_TYPE_DIRECTORY) { + /* Hoosterman, another problem.... + * We're trying to use a non-directory as a directory + */ + + T(YAFFS_TRACE_ERROR, + (TSTR +- ("yaffs tragedy: attempting to use non-directory as" +- " a directory in scan. Put in lost+found." ++ ("yaffs tragedy: attempting to use non-directory as a directory in scan. Put in lost+found." + TENDSTR))); + parent = dev->lostNFoundDir; + } +@@ -6494,12 +6519,12 @@ static int yaffs_ScanBackwards(yaffs_Dev + + break; + case YAFFS_OBJECT_TYPE_HARDLINK: +- if(!itsUnlinked) { +- in->variant.hardLinkVariant.equivalentObjectId = +- equivalentObjectId; +- in->hardLinks.next = +- (struct list_head *) hardList; +- hardList = in; ++ if (!itsUnlinked) { ++ in->variant.hardLinkVariant.equivalentObjectId = ++ equivalentObjectId; ++ in->hardLinks.next = ++ (struct ylist_head *) hardList; ++ hardList = in; + } + break; + case YAFFS_OBJECT_TYPE_DIRECTORY: +@@ -6509,12 +6534,11 @@ static int yaffs_ScanBackwards(yaffs_Dev + /* Do nothing */ + break; + case YAFFS_OBJECT_TYPE_SYMLINK: +- if(oh){ +- in->variant.symLinkVariant.alias = +- yaffs_CloneString(oh-> +- alias); +- if(!in->variant.symLinkVariant.alias) +- alloc_failed = 1; ++ if (oh) { ++ in->variant.symLinkVariant.alias = ++ yaffs_CloneString(oh->alias); ++ if (!in->variant.symLinkVariant.alias) ++ alloc_failed = 1; + } + break; + } +@@ -6551,75 +6575,129 @@ static int yaffs_ScanBackwards(yaffs_Dev + * We should now have scanned all the objects, now it's time to add these + * hardlinks. + */ +- yaffs_HardlinkFixup(dev,hardList); ++ yaffs_HardlinkFixup(dev, hardList); + + +- /* +- * Sort out state of unlinked and deleted objects. +- */ +- { +- struct list_head *i; +- struct list_head *n; ++ yaffs_ReleaseTempBuffer(dev, chunkData, __LINE__); + +- yaffs_Object *l; ++ if (alloc_failed) ++ return YAFFS_FAIL; + +- /* Soft delete all the unlinked files */ +- list_for_each_safe(i, n, +- &dev->unlinkedDir->variant.directoryVariant. +- children) { +- if (i) { +- l = list_entry(i, yaffs_Object, siblings); +- yaffs_DestroyObject(l); +- } +- } ++ T(YAFFS_TRACE_SCAN, (TSTR("yaffs_ScanBackwards ends" TENDSTR))); + +- /* Soft delete all the deletedDir files */ +- list_for_each_safe(i, n, +- &dev->deletedDir->variant.directoryVariant. +- children) { +- if (i) { +- l = list_entry(i, yaffs_Object, siblings); +- yaffs_DestroyObject(l); ++ return YAFFS_OK; ++} + +- } ++/*------------------------------ Directory Functions ----------------------------- */ ++ ++static void yaffs_VerifyObjectInDirectory(yaffs_Object *obj) ++{ ++ struct ylist_head *lh; ++ yaffs_Object *listObj; ++ ++ int count = 0; ++ ++ if (!obj) { ++ T(YAFFS_TRACE_ALWAYS, (TSTR("No object to verify" TENDSTR))); ++ YBUG(); ++ return; ++ } ++ ++ if (yaffs_SkipVerification(obj->myDev)) ++ return; ++ ++ if (!obj->parent) { ++ T(YAFFS_TRACE_ALWAYS, (TSTR("Object does not have parent" TENDSTR))); ++ YBUG(); ++ return; ++ } ++ ++ if (obj->parent->variantType != YAFFS_OBJECT_TYPE_DIRECTORY) { ++ T(YAFFS_TRACE_ALWAYS, (TSTR("Parent is not directory" TENDSTR))); ++ YBUG(); ++ } ++ ++ /* Iterate through the objects in each hash entry */ ++ ++ ylist_for_each(lh, &obj->parent->variant.directoryVariant.children) { ++ if (lh) { ++ listObj = ylist_entry(lh, yaffs_Object, siblings); ++ yaffs_VerifyObject(listObj); ++ if (obj == listObj) ++ count++; + } ++ } ++ ++ if (count != 1) { ++ T(YAFFS_TRACE_ALWAYS, (TSTR("Object in directory %d times" TENDSTR), count)); ++ YBUG(); + } ++} + +- yaffs_ReleaseTempBuffer(dev, chunkData, __LINE__); ++static void yaffs_VerifyDirectory(yaffs_Object *directory) ++{ ++ struct ylist_head *lh; ++ yaffs_Object *listObj; + +- if(alloc_failed){ +- return YAFFS_FAIL; ++ if (!directory) { ++ YBUG(); ++ return; + } + +- T(YAFFS_TRACE_SCAN, (TSTR("yaffs_ScanBackwards ends" TENDSTR))); ++ if (yaffs_SkipFullVerification(directory->myDev)) ++ return; + +- return YAFFS_OK; ++ if (directory->variantType != YAFFS_OBJECT_TYPE_DIRECTORY) { ++ T(YAFFS_TRACE_ALWAYS, (TSTR("Directory has wrong type: %d" TENDSTR), directory->variantType)); ++ YBUG(); ++ } ++ ++ /* Iterate through the objects in each hash entry */ ++ ++ ylist_for_each(lh, &directory->variant.directoryVariant.children) { ++ if (lh) { ++ listObj = ylist_entry(lh, yaffs_Object, siblings); ++ if (listObj->parent != directory) { ++ T(YAFFS_TRACE_ALWAYS, (TSTR("Object in directory list has wrong parent %p" TENDSTR), listObj->parent)); ++ YBUG(); ++ } ++ yaffs_VerifyObjectInDirectory(listObj); ++ } ++ } + } + +-/*------------------------------ Directory Functions ----------------------------- */ + +-static void yaffs_RemoveObjectFromDirectory(yaffs_Object * obj) ++static void yaffs_RemoveObjectFromDirectory(yaffs_Object *obj) + { + yaffs_Device *dev = obj->myDev; ++ yaffs_Object *parent; ++ ++ yaffs_VerifyObjectInDirectory(obj); ++ parent = obj->parent; ++ ++ yaffs_VerifyDirectory(parent); + +- if(dev && dev->removeObjectCallback) ++ if (dev && dev->removeObjectCallback) + dev->removeObjectCallback(obj); + +- list_del_init(&obj->siblings); ++ ++ ylist_del_init(&obj->siblings); + obj->parent = NULL; ++ ++ yaffs_VerifyDirectory(parent); + } + + +-static void yaffs_AddObjectToDirectory(yaffs_Object * directory, +- yaffs_Object * obj) ++static void yaffs_AddObjectToDirectory(yaffs_Object *directory, ++ yaffs_Object *obj) + { +- + if (!directory) { + T(YAFFS_TRACE_ALWAYS, + (TSTR + ("tragedy: Trying to add an object to a null pointer directory" + TENDSTR))); + YBUG(); ++ return; + } + if (directory->variantType != YAFFS_OBJECT_TYPE_DIRECTORY) { + T(YAFFS_TRACE_ALWAYS, +@@ -6631,37 +6709,42 @@ static void yaffs_AddObjectToDirectory(y + + if (obj->siblings.prev == NULL) { + /* Not initialised */ +- INIT_LIST_HEAD(&obj->siblings); +- +- } else if (!list_empty(&obj->siblings)) { +- /* If it is holed up somewhere else, un hook it */ +- yaffs_RemoveObjectFromDirectory(obj); ++ YBUG(); + } ++ ++ ++ yaffs_VerifyDirectory(directory); ++ ++ yaffs_RemoveObjectFromDirectory(obj); ++ ++ + /* Now add it */ +- list_add(&obj->siblings, &directory->variant.directoryVariant.children); ++ ylist_add(&obj->siblings, &directory->variant.directoryVariant.children); + obj->parent = directory; + + if (directory == obj->myDev->unlinkedDir +- || directory == obj->myDev->deletedDir) { ++ || directory == obj->myDev->deletedDir) { + obj->unlinked = 1; + obj->myDev->nUnlinkedFiles++; + obj->renameAllowed = 0; + } ++ ++ yaffs_VerifyDirectory(directory); ++ yaffs_VerifyObjectInDirectory(obj); + } + +-yaffs_Object *yaffs_FindObjectByName(yaffs_Object * directory, +- const YCHAR * name) ++yaffs_Object *yaffs_FindObjectByName(yaffs_Object *directory, ++ const YCHAR *name) + { + int sum; + +- struct list_head *i; ++ struct ylist_head *i; + YCHAR buffer[YAFFS_MAX_NAME_LENGTH + 1]; + + yaffs_Object *l; + +- if (!name) { ++ if (!name) + return NULL; +- } + + if (!directory) { + T(YAFFS_TRACE_ALWAYS, +@@ -6669,6 +6752,7 @@ yaffs_Object *yaffs_FindObjectByName(yaf + ("tragedy: yaffs_FindObjectByName: null pointer directory" + TENDSTR))); + YBUG(); ++ return NULL; + } + if (directory->variantType != YAFFS_OBJECT_TYPE_DIRECTORY) { + T(YAFFS_TRACE_ALWAYS, +@@ -6679,28 +6763,27 @@ yaffs_Object *yaffs_FindObjectByName(yaf + + sum = yaffs_CalcNameSum(name); + +- list_for_each(i, &directory->variant.directoryVariant.children) { ++ ylist_for_each(i, &directory->variant.directoryVariant.children) { + if (i) { +- l = list_entry(i, yaffs_Object, siblings); ++ l = ylist_entry(i, yaffs_Object, siblings); ++ ++ if (l->parent != directory) ++ YBUG(); + + yaffs_CheckObjectDetailsLoaded(l); + + /* Special case for lost-n-found */ + if (l->objectId == YAFFS_OBJECTID_LOSTNFOUND) { +- if (yaffs_strcmp(name, YAFFS_LOSTNFOUND_NAME) == 0) { ++ if (yaffs_strcmp(name, YAFFS_LOSTNFOUND_NAME) == 0) + return l; +- } +- } else if (yaffs_SumCompare(l->sum, sum) || l->chunkId <= 0) +- { +- /* LostnFound cunk called Objxxx ++ } else if (yaffs_SumCompare(l->sum, sum) || l->hdrChunk <= 0) { ++ /* LostnFound chunk called Objxxx + * Do a real check + */ + yaffs_GetObjectName(l, buffer, + YAFFS_MAX_NAME_LENGTH); +- if (yaffs_strncmp(name, buffer,YAFFS_MAX_NAME_LENGTH) == 0) { ++ if (yaffs_strncmp(name, buffer, YAFFS_MAX_NAME_LENGTH) == 0) + return l; +- } +- + } + } + } +@@ -6710,10 +6793,10 @@ yaffs_Object *yaffs_FindObjectByName(yaf + + + #if 0 +-int yaffs_ApplyToDirectoryChildren(yaffs_Object * theDir, +- int (*fn) (yaffs_Object *)) ++int yaffs_ApplyToDirectoryChildren(yaffs_Object *theDir, ++ int (*fn) (yaffs_Object *)) + { +- struct list_head *i; ++ struct ylist_head *i; + yaffs_Object *l; + + if (!theDir) { +@@ -6722,20 +6805,21 @@ int yaffs_ApplyToDirectoryChildren(yaffs + ("tragedy: yaffs_FindObjectByName: null pointer directory" + TENDSTR))); + YBUG(); ++ return YAFFS_FAIL; + } + if (theDir->variantType != YAFFS_OBJECT_TYPE_DIRECTORY) { + T(YAFFS_TRACE_ALWAYS, + (TSTR + ("tragedy: yaffs_FindObjectByName: non-directory" TENDSTR))); + YBUG(); ++ return YAFFS_FAIL; + } + +- list_for_each(i, &theDir->variant.directoryVariant.children) { ++ ylist_for_each(i, &theDir->variant.directoryVariant.children) { + if (i) { +- l = list_entry(i, yaffs_Object, siblings); +- if (l && !fn(l)) { ++ l = ylist_entry(i, yaffs_Object, siblings); ++ if (l && !fn(l)) + return YAFFS_FAIL; +- } + } + } + +@@ -6748,7 +6832,7 @@ int yaffs_ApplyToDirectoryChildren(yaffs + * actual object. + */ + +-yaffs_Object *yaffs_GetEquivalentObject(yaffs_Object * obj) ++yaffs_Object *yaffs_GetEquivalentObject(yaffs_Object *obj) + { + if (obj && obj->variantType == YAFFS_OBJECT_TYPE_HARDLINK) { + /* We want the object id of the equivalent object, not this one */ +@@ -6756,10 +6840,9 @@ yaffs_Object *yaffs_GetEquivalentObject( + yaffs_CheckObjectDetailsLoaded(obj); + } + return obj; +- + } + +-int yaffs_GetObjectName(yaffs_Object * obj, YCHAR * name, int buffSize) ++int yaffs_GetObjectName(yaffs_Object *obj, YCHAR *name, int buffSize) + { + memset(name, 0, buffSize * sizeof(YCHAR)); + +@@ -6767,18 +6850,26 @@ int yaffs_GetObjectName(yaffs_Object * o + + if (obj->objectId == YAFFS_OBJECTID_LOSTNFOUND) { + yaffs_strncpy(name, YAFFS_LOSTNFOUND_NAME, buffSize - 1); +- } else if (obj->chunkId <= 0) { ++ } else if (obj->hdrChunk <= 0) { + YCHAR locName[20]; ++ YCHAR numString[20]; ++ YCHAR *x = &numString[19]; ++ unsigned v = obj->objectId; ++ numString[19] = 0; ++ while (v > 0) { ++ x--; ++ *x = '0' + (v % 10); ++ v /= 10; ++ } + /* make up a name */ +- yaffs_sprintf(locName, _Y("%s%d"), YAFFS_LOSTNFOUND_PREFIX, +- obj->objectId); ++ yaffs_strcpy(locName, YAFFS_LOSTNFOUND_PREFIX); ++ yaffs_strcat(locName, x); + yaffs_strncpy(name, locName, buffSize - 1); + + } + #ifdef CONFIG_YAFFS_SHORT_NAMES_IN_RAM +- else if (obj->shortName[0]) { ++ else if (obj->shortName[0]) + yaffs_strcpy(name, obj->shortName); +- } + #endif + else { + int result; +@@ -6788,9 +6879,9 @@ int yaffs_GetObjectName(yaffs_Object * o + + memset(buffer, 0, obj->myDev->nDataBytesPerChunk); + +- if (obj->chunkId >= 0) { ++ if (obj->hdrChunk > 0) { + result = yaffs_ReadChunkWithTagsFromNAND(obj->myDev, +- obj->chunkId, buffer, ++ obj->hdrChunk, buffer, + NULL); + } + yaffs_strncpy(name, oh->name, buffSize - 1); +@@ -6801,46 +6892,43 @@ int yaffs_GetObjectName(yaffs_Object * o + return yaffs_strlen(name); + } + +-int yaffs_GetObjectFileLength(yaffs_Object * obj) ++int yaffs_GetObjectFileLength(yaffs_Object *obj) + { +- + /* Dereference any hard linking */ + obj = yaffs_GetEquivalentObject(obj); + +- if (obj->variantType == YAFFS_OBJECT_TYPE_FILE) { ++ if (obj->variantType == YAFFS_OBJECT_TYPE_FILE) + return obj->variant.fileVariant.fileSize; +- } +- if (obj->variantType == YAFFS_OBJECT_TYPE_SYMLINK) { ++ if (obj->variantType == YAFFS_OBJECT_TYPE_SYMLINK) + return yaffs_strlen(obj->variant.symLinkVariant.alias); +- } else { ++ else { + /* Only a directory should drop through to here */ + return obj->myDev->nDataBytesPerChunk; + } + } + +-int yaffs_GetObjectLinkCount(yaffs_Object * obj) ++int yaffs_GetObjectLinkCount(yaffs_Object *obj) + { + int count = 0; +- struct list_head *i; ++ struct ylist_head *i; + +- if (!obj->unlinked) { +- count++; /* the object itself */ +- } +- list_for_each(i, &obj->hardLinks) { +- count++; /* add the hard links; */ +- } +- return count; ++ if (!obj->unlinked) ++ count++; /* the object itself */ ++ ++ ylist_for_each(i, &obj->hardLinks) ++ count++; /* add the hard links; */ + ++ return count; + } + +-int yaffs_GetObjectInode(yaffs_Object * obj) ++int yaffs_GetObjectInode(yaffs_Object *obj) + { + obj = yaffs_GetEquivalentObject(obj); + + return obj->objectId; + } + +-unsigned yaffs_GetObjectType(yaffs_Object * obj) ++unsigned yaffs_GetObjectType(yaffs_Object *obj) + { + obj = yaffs_GetEquivalentObject(obj); + +@@ -6872,19 +6960,18 @@ unsigned yaffs_GetObjectType(yaffs_Objec + } + } + +-YCHAR *yaffs_GetSymlinkAlias(yaffs_Object * obj) ++YCHAR *yaffs_GetSymlinkAlias(yaffs_Object *obj) + { + obj = yaffs_GetEquivalentObject(obj); +- if (obj->variantType == YAFFS_OBJECT_TYPE_SYMLINK) { ++ if (obj->variantType == YAFFS_OBJECT_TYPE_SYMLINK) + return yaffs_CloneString(obj->variant.symLinkVariant.alias); +- } else { ++ else + return yaffs_CloneString(_Y("")); +- } + } + + #ifndef CONFIG_YAFFS_WINCE + +-int yaffs_SetAttributes(yaffs_Object * obj, struct iattr *attr) ++int yaffs_SetAttributes(yaffs_Object *obj, struct iattr *attr) + { + unsigned int valid = attr->ia_valid; + +@@ -6910,7 +6997,7 @@ int yaffs_SetAttributes(yaffs_Object * o + return YAFFS_OK; + + } +-int yaffs_GetAttributes(yaffs_Object * obj, struct iattr *attr) ++int yaffs_GetAttributes(yaffs_Object *obj, struct iattr *attr) + { + unsigned int valid = 0; + +@@ -6934,13 +7021,12 @@ int yaffs_GetAttributes(yaffs_Object * o + attr->ia_valid = valid; + + return YAFFS_OK; +- + } + + #endif + + #if 0 +-int yaffs_DumpObject(yaffs_Object * obj) ++int yaffs_DumpObject(yaffs_Object *obj) + { + YCHAR name[257]; + +@@ -6951,7 +7037,7 @@ int yaffs_DumpObject(yaffs_Object * obj) + ("Object %d, inode %d \"%s\"\n dirty %d valid %d serial %d sum %d" + " chunk %d type %d size %d\n" + TENDSTR), obj->objectId, yaffs_GetObjectInode(obj), name, +- obj->dirty, obj->valid, obj->serial, obj->sum, obj->chunkId, ++ obj->dirty, obj->valid, obj->serial, obj->sum, obj->hdrChunk, + yaffs_GetObjectType(obj), yaffs_GetObjectFileLength(obj))); + + return YAFFS_OK; +@@ -6960,7 +7046,7 @@ int yaffs_DumpObject(yaffs_Object * obj) + + /*---------------------------- Initialisation code -------------------------------------- */ + +-static int yaffs_CheckDevFunctions(const yaffs_Device * dev) ++static int yaffs_CheckDevFunctions(const yaffs_Device *dev) + { + + /* Common functions, gotta have */ +@@ -7011,7 +7097,7 @@ static int yaffs_CreateInitialDirectorie + yaffs_CreateFakeDirectory(dev, YAFFS_OBJECTID_LOSTNFOUND, + YAFFS_LOSTNFOUND_MODE | S_IFDIR); + +- if(dev->lostNFoundDir && dev->rootDir && dev->unlinkedDir && dev->deletedDir){ ++ if (dev->lostNFoundDir && dev->rootDir && dev->unlinkedDir && dev->deletedDir) { + yaffs_AddObjectToDirectory(dev->rootDir, dev->lostNFoundDir); + return YAFFS_OK; + } +@@ -7019,7 +7105,7 @@ static int yaffs_CreateInitialDirectorie + return YAFFS_FAIL; + } + +-int yaffs_GutsInitialise(yaffs_Device * dev) ++int yaffs_GutsInitialise(yaffs_Device *dev) + { + int init_failed = 0; + unsigned x; +@@ -7040,6 +7126,8 @@ int yaffs_GutsInitialise(yaffs_Device * + dev->chunkOffset = 0; + dev->nFreeChunks = 0; + ++ dev->gcBlock = -1; ++ + if (dev->startBlock == 0) { + dev->internalStartBlock = dev->startBlock + 1; + dev->internalEndBlock = dev->endBlock + 1; +@@ -7049,18 +7137,18 @@ int yaffs_GutsInitialise(yaffs_Device * + + /* Check geometry parameters. */ + +- if ((dev->isYaffs2 && dev->nDataBytesPerChunk < 1024) || +- (!dev->isYaffs2 && dev->nDataBytesPerChunk != 512) || ++ if ((!dev->inbandTags && dev->isYaffs2 && dev->totalBytesPerChunk < 1024) || ++ (!dev->isYaffs2 && dev->totalBytesPerChunk < 512) || ++ (dev->inbandTags && !dev->isYaffs2) || + dev->nChunksPerBlock < 2 || + dev->nReservedBlocks < 2 || + dev->internalStartBlock <= 0 || + dev->internalEndBlock <= 0 || +- dev->internalEndBlock <= (dev->internalStartBlock + dev->nReservedBlocks + 2) // otherwise it is too small +- ) { ++ dev->internalEndBlock <= (dev->internalStartBlock + dev->nReservedBlocks + 2)) { /* otherwise it is too small */ + T(YAFFS_TRACE_ALWAYS, + (TSTR +- ("yaffs: NAND geometry problems: chunk size %d, type is yaffs%s " +- TENDSTR), dev->nDataBytesPerChunk, dev->isYaffs2 ? "2" : "")); ++ ("yaffs: NAND geometry problems: chunk size %d, type is yaffs%s, inbandTags %d " ++ TENDSTR), dev->totalBytesPerChunk, dev->isYaffs2 ? "2" : "", dev->inbandTags)); + return YAFFS_FAIL; + } + +@@ -7070,6 +7158,12 @@ int yaffs_GutsInitialise(yaffs_Device * + return YAFFS_FAIL; + } + ++ /* Sort out space for inband tags, if required */ ++ if (dev->inbandTags) ++ dev->nDataBytesPerChunk = dev->totalBytesPerChunk - sizeof(yaffs_PackedTags2TagsPart); ++ else ++ dev->nDataBytesPerChunk = dev->totalBytesPerChunk; ++ + /* Got the right mix of functions? */ + if (!yaffs_CheckDevFunctions(dev)) { + /* Function missing */ +@@ -7097,31 +7191,18 @@ int yaffs_GutsInitialise(yaffs_Device * + + dev->isMounted = 1; + +- +- + /* OK now calculate a few things for the device */ + + /* + * Calculate all the chunk size manipulation numbers: + */ +- /* Start off assuming it is a power of 2 */ +- dev->chunkShift = ShiftDiv(dev->nDataBytesPerChunk); +- dev->chunkMask = (1<chunkShift) - 1; +- +- if(dev->nDataBytesPerChunk == (dev->chunkMask + 1)){ +- /* Yes it is a power of 2, disable crumbs */ +- dev->crumbMask = 0; +- dev->crumbShift = 0; +- dev->crumbsPerChunk = 0; +- } else { +- /* Not a power of 2, use crumbs instead */ +- dev->crumbShift = ShiftDiv(sizeof(yaffs_PackedTags2TagsPart)); +- dev->crumbMask = (1<crumbShift)-1; +- dev->crumbsPerChunk = dev->nDataBytesPerChunk/(1 << dev->crumbShift); +- dev->chunkShift = 0; +- dev->chunkMask = 0; +- } +- ++ x = dev->nDataBytesPerChunk; ++ /* We always use dev->chunkShift and dev->chunkDiv */ ++ dev->chunkShift = Shifts(x); ++ x >>= dev->chunkShift; ++ dev->chunkDiv = x; ++ /* We only use chunk mask if chunkDiv is 1 */ ++ dev->chunkMask = (1<chunkShift) - 1; + + /* + * Calculate chunkGroupBits. +@@ -7133,16 +7214,15 @@ int yaffs_GutsInitialise(yaffs_Device * + bits = ShiftsGE(x); + + /* Set up tnode width if wide tnodes are enabled. */ +- if(!dev->wideTnodesDisabled){ ++ if (!dev->wideTnodesDisabled) { + /* bits must be even so that we end up with 32-bit words */ +- if(bits & 1) ++ if (bits & 1) + bits++; +- if(bits < 16) ++ if (bits < 16) + dev->tnodeWidth = 16; + else + dev->tnodeWidth = bits; +- } +- else ++ } else + dev->tnodeWidth = 16; + + dev->tnodeMask = (1<tnodeWidth)-1; +@@ -7193,7 +7273,7 @@ int yaffs_GutsInitialise(yaffs_Device * + dev->hasPendingPrioritisedGCs = 1; /* Assume the worst for now, will get fixed on first GC */ + + /* Initialise temporary buffers and caches. */ +- if(!yaffs_InitialiseTempBuffers(dev)) ++ if (!yaffs_InitialiseTempBuffers(dev)) + init_failed = 1; + + dev->srCache = NULL; +@@ -7203,25 +7283,26 @@ int yaffs_GutsInitialise(yaffs_Device * + if (!init_failed && + dev->nShortOpCaches > 0) { + int i; +- __u8 *buf; ++ void *buf; + int srCacheBytes = dev->nShortOpCaches * sizeof(yaffs_ChunkCache); + +- if (dev->nShortOpCaches > YAFFS_MAX_SHORT_OP_CACHES) { ++ if (dev->nShortOpCaches > YAFFS_MAX_SHORT_OP_CACHES) + dev->nShortOpCaches = YAFFS_MAX_SHORT_OP_CACHES; +- } + +- buf = dev->srCache = YMALLOC(srCacheBytes); ++ dev->srCache = YMALLOC(srCacheBytes); + +- if(dev->srCache) +- memset(dev->srCache,0,srCacheBytes); ++ buf = (__u8 *) dev->srCache; ++ ++ if (dev->srCache) ++ memset(dev->srCache, 0, srCacheBytes); + + for (i = 0; i < dev->nShortOpCaches && buf; i++) { + dev->srCache[i].object = NULL; + dev->srCache[i].lastUse = 0; + dev->srCache[i].dirty = 0; +- dev->srCache[i].data = buf = YMALLOC_DMA(dev->nDataBytesPerChunk); ++ dev->srCache[i].data = buf = YMALLOC_DMA(dev->totalBytesPerChunk); + } +- if(!buf) ++ if (!buf) + init_failed = 1; + + dev->srLastUse = 0; +@@ -7229,29 +7310,30 @@ int yaffs_GutsInitialise(yaffs_Device * + + dev->cacheHits = 0; + +- if(!init_failed){ ++ if (!init_failed) { + dev->gcCleanupList = YMALLOC(dev->nChunksPerBlock * sizeof(__u32)); +- if(!dev->gcCleanupList) ++ if (!dev->gcCleanupList) + init_failed = 1; + } + +- if (dev->isYaffs2) { ++ if (dev->isYaffs2) + dev->useHeaderFileSize = 1; +- } +- if(!init_failed && !yaffs_InitialiseBlocks(dev)) ++ ++ if (!init_failed && !yaffs_InitialiseBlocks(dev)) + init_failed = 1; + + yaffs_InitialiseTnodes(dev); + yaffs_InitialiseObjects(dev); + +- if(!init_failed && !yaffs_CreateInitialDirectories(dev)) ++ if (!init_failed && !yaffs_CreateInitialDirectories(dev)) + init_failed = 1; + + +- if(!init_failed){ ++ if (!init_failed) { + /* Now scan the flash. */ + if (dev->isYaffs2) { +- if(yaffs_CheckpointRestore(dev)) { ++ if (yaffs_CheckpointRestore(dev)) { ++ yaffs_CheckObjectDetailsLoaded(dev->rootDir); + T(YAFFS_TRACE_ALWAYS, + (TSTR("yaffs: restored from checkpoint" TENDSTR))); + } else { +@@ -7273,24 +7355,25 @@ int yaffs_GutsInitialise(yaffs_Device * + dev->nBackgroundDeletions = 0; + dev->oldestDirtySequence = 0; + +- if(!init_failed && !yaffs_InitialiseBlocks(dev)) ++ if (!init_failed && !yaffs_InitialiseBlocks(dev)) + init_failed = 1; + + yaffs_InitialiseTnodes(dev); + yaffs_InitialiseObjects(dev); + +- if(!init_failed && !yaffs_CreateInitialDirectories(dev)) ++ if (!init_failed && !yaffs_CreateInitialDirectories(dev)) + init_failed = 1; + +- if(!init_failed && !yaffs_ScanBackwards(dev)) ++ if (!init_failed && !yaffs_ScanBackwards(dev)) + init_failed = 1; + } +- }else +- if(!yaffs_Scan(dev)) ++ } else if (!yaffs_Scan(dev)) + init_failed = 1; ++ ++ yaffs_StripDeletedObjects(dev); + } + +- if(init_failed){ ++ if (init_failed) { + /* Clean up the mess */ + T(YAFFS_TRACE_TRACING, + (TSTR("yaffs: yaffs_GutsInitialise() aborted.\n" TENDSTR))); +@@ -7318,7 +7401,7 @@ int yaffs_GutsInitialise(yaffs_Device * + + } + +-void yaffs_Deinitialise(yaffs_Device * dev) ++void yaffs_Deinitialise(yaffs_Device *dev) + { + if (dev->isMounted) { + int i; +@@ -7330,7 +7413,7 @@ void yaffs_Deinitialise(yaffs_Device * d + dev->srCache) { + + for (i = 0; i < dev->nShortOpCaches; i++) { +- if(dev->srCache[i].data) ++ if (dev->srCache[i].data) + YFREE(dev->srCache[i].data); + dev->srCache[i].data = NULL; + } +@@ -7341,16 +7424,17 @@ void yaffs_Deinitialise(yaffs_Device * d + + YFREE(dev->gcCleanupList); + +- for (i = 0; i < YAFFS_N_TEMP_BUFFERS; i++) { ++ for (i = 0; i < YAFFS_N_TEMP_BUFFERS; i++) + YFREE(dev->tempBuffer[i].buffer); +- } + + dev->isMounted = 0; +- } + ++ if (dev->deinitialiseNAND) ++ dev->deinitialiseNAND(dev); ++ } + } + +-static int yaffs_CountFreeChunks(yaffs_Device * dev) ++static int yaffs_CountFreeChunks(yaffs_Device *dev) + { + int nFree; + int b; +@@ -7358,7 +7442,7 @@ static int yaffs_CountFreeChunks(yaffs_D + yaffs_BlockInfo *blk; + + for (nFree = 0, b = dev->internalStartBlock; b <= dev->internalEndBlock; +- b++) { ++ b++) { + blk = yaffs_GetBlockInfo(dev, b); + + switch (blk->blockState) { +@@ -7373,19 +7457,19 @@ static int yaffs_CountFreeChunks(yaffs_D + default: + break; + } +- + } + + return nFree; + } + +-int yaffs_GetNumberOfFreeChunks(yaffs_Device * dev) ++int yaffs_GetNumberOfFreeChunks(yaffs_Device *dev) + { + /* This is what we report to the outside world */ + + int nFree; + int nDirtyCacheChunks; + int blocksForCheckpoint; ++ int i; + + #if 1 + nFree = dev->nFreeChunks; +@@ -7397,12 +7481,9 @@ int yaffs_GetNumberOfFreeChunks(yaffs_De + + /* Now count the number of dirty chunks in the cache and subtract those */ + +- { +- int i; +- for (nDirtyCacheChunks = 0, i = 0; i < dev->nShortOpCaches; i++) { +- if (dev->srCache[i].dirty) +- nDirtyCacheChunks++; +- } ++ for (nDirtyCacheChunks = 0, i = 0; i < dev->nShortOpCaches; i++) { ++ if (dev->srCache[i].dirty) ++ nDirtyCacheChunks++; + } + + nFree -= nDirtyCacheChunks; +@@ -7410,8 +7491,8 @@ int yaffs_GetNumberOfFreeChunks(yaffs_De + nFree -= ((dev->nReservedBlocks + 1) * dev->nChunksPerBlock); + + /* Now we figure out how much to reserve for the checkpoint and report that... */ +- blocksForCheckpoint = dev->nCheckpointReservedBlocks - dev->blocksInCheckpoint; +- if(blocksForCheckpoint < 0) ++ blocksForCheckpoint = yaffs_CalcCheckpointBlocksRequired(dev) - dev->blocksInCheckpoint; ++ if (blocksForCheckpoint < 0) + blocksForCheckpoint = 0; + + nFree -= (blocksForCheckpoint * dev->nChunksPerBlock); +@@ -7425,12 +7506,12 @@ int yaffs_GetNumberOfFreeChunks(yaffs_De + + static int yaffs_freeVerificationFailures; + +-static void yaffs_VerifyFreeChunks(yaffs_Device * dev) ++static void yaffs_VerifyFreeChunks(yaffs_Device *dev) + { + int counted; + int difference; + +- if(yaffs_SkipVerification(dev)) ++ if (yaffs_SkipVerification(dev)) + return; + + counted = yaffs_CountFreeChunks(dev); +@@ -7447,23 +7528,25 @@ static void yaffs_VerifyFreeChunks(yaffs + + /*---------------------------------------- YAFFS test code ----------------------*/ + +-#define yaffs_CheckStruct(structure,syze, name) \ +- if(sizeof(structure) != syze) \ +- { \ +- T(YAFFS_TRACE_ALWAYS,(TSTR("%s should be %d but is %d\n" TENDSTR),\ +- name,syze,sizeof(structure))); \ +- return YAFFS_FAIL; \ +- } ++#define yaffs_CheckStruct(structure, syze, name) \ ++ do { \ ++ if (sizeof(structure) != syze) { \ ++ T(YAFFS_TRACE_ALWAYS, (TSTR("%s should be %d but is %d\n" TENDSTR),\ ++ name, syze, sizeof(structure))); \ ++ return YAFFS_FAIL; \ ++ } \ ++ } while (0) + + static int yaffs_CheckStructures(void) + { +-/* yaffs_CheckStruct(yaffs_Tags,8,"yaffs_Tags") */ +-/* yaffs_CheckStruct(yaffs_TagsUnion,8,"yaffs_TagsUnion") */ +-/* yaffs_CheckStruct(yaffs_Spare,16,"yaffs_Spare") */ ++/* yaffs_CheckStruct(yaffs_Tags,8,"yaffs_Tags"); */ ++/* yaffs_CheckStruct(yaffs_TagsUnion,8,"yaffs_TagsUnion"); */ ++/* yaffs_CheckStruct(yaffs_Spare,16,"yaffs_Spare"); */ + #ifndef CONFIG_YAFFS_TNODE_LIST_DEBUG +- yaffs_CheckStruct(yaffs_Tnode, 2 * YAFFS_NTNODES_LEVEL0, "yaffs_Tnode") ++ yaffs_CheckStruct(yaffs_Tnode, 2 * YAFFS_NTNODES_LEVEL0, "yaffs_Tnode"); + #endif +- yaffs_CheckStruct(yaffs_ObjectHeader, 512, "yaffs_ObjectHeader") +- +- return YAFFS_OK; ++#ifndef CONFIG_YAFFS_WINCE ++ yaffs_CheckStruct(yaffs_ObjectHeader, 512, "yaffs_ObjectHeader"); ++#endif ++ return YAFFS_OK; + } +--- a/fs/yaffs2/yaffs_guts.h ++++ b/fs/yaffs2/yaffs_guts.h +@@ -90,7 +90,7 @@ + + #define YAFFS_MAX_SHORT_OP_CACHES 20 + +-#define YAFFS_N_TEMP_BUFFERS 4 ++#define YAFFS_N_TEMP_BUFFERS 6 + + /* We limit the number attempts at sucessfully saving a chunk of data. + * Small-page devices have 32 pages per block; large-page devices have 64. +@@ -108,6 +108,9 @@ + #define YAFFS_LOWEST_SEQUENCE_NUMBER 0x00001000 + #define YAFFS_HIGHEST_SEQUENCE_NUMBER 0xEFFFFF00 + ++/* Special sequence number for bad block that failed to be marked bad */ ++#define YAFFS_SEQUENCE_BAD_BLOCK 0xFFFF0000 ++ + /* ChunkCache is used for short read/write operations.*/ + typedef struct { + struct yaffs_ObjectStruct *object; +@@ -134,11 +137,10 @@ typedef struct { + typedef struct { + unsigned chunkId:20; + unsigned serialNumber:2; +- unsigned byteCount:10; ++ unsigned byteCountLSB:10; + unsigned objectId:18; + unsigned ecc:12; +- unsigned unusedStuff:2; +- ++ unsigned byteCountMSB:2; + } yaffs_Tags; + + typedef union { +@@ -277,13 +279,13 @@ typedef struct { + + int softDeletions:10; /* number of soft deleted pages */ + int pagesInUse:10; /* number of pages in use */ +- yaffs_BlockState blockState:4; /* One of the above block states */ ++ unsigned blockState:4; /* One of the above block states. NB use unsigned because enum is sometimes an int */ + __u32 needsRetiring:1; /* Data has failed on this block, need to get valid data off */ +- /* and retire the block. */ +- __u32 skipErasedCheck: 1; /* If this is set we can skip the erased check on this block */ +- __u32 gcPrioritise: 1; /* An ECC check or blank check has failed on this block. ++ /* and retire the block. */ ++ __u32 skipErasedCheck:1; /* If this is set we can skip the erased check on this block */ ++ __u32 gcPrioritise:1; /* An ECC check or blank check has failed on this block. + It should be prioritised for GC */ +- __u32 chunkErrorStrikes:3; /* How many times we've had ecc etc failures on this block and tried to reuse it */ ++ __u32 chunkErrorStrikes:3; /* How many times we've had ecc etc failures on this block and tried to reuse it */ + + #ifdef CONFIG_YAFFS_YAFFS2 + __u32 hasShrinkHeader:1; /* This block has at least one shrink object header */ +@@ -300,11 +302,11 @@ typedef struct { + + /* Apply to everything */ + int parentObjectId; +- __u16 sum__NoLongerUsed; /* checksum of name. No longer used */ ++ __u16 sum__NoLongerUsed; /* checksum of name. No longer used */ + YCHAR name[YAFFS_MAX_NAME_LENGTH + 1]; + +- /* Thes following apply to directories, files, symlinks - not hard links */ +- __u32 yst_mode; /* protection */ ++ /* The following apply to directories, files, symlinks - not hard links */ ++ __u32 yst_mode; /* protection */ + + #ifdef CONFIG_YAFFS_WINCE + __u32 notForWinCE[5]; +@@ -331,11 +333,14 @@ typedef struct { + __u32 win_ctime[2]; + __u32 win_atime[2]; + __u32 win_mtime[2]; +- __u32 roomToGrow[4]; + #else +- __u32 roomToGrow[10]; ++ __u32 roomToGrow[6]; ++ + #endif ++ __u32 inbandShadowsObject; ++ __u32 inbandIsShrink; + ++ __u32 reservedSpace[2]; + int shadowsObject; /* This object header shadows the specified object if > 0 */ + + /* isShrink applies to object headers written when we shrink the file (ie resize) */ +@@ -381,7 +386,7 @@ typedef struct { + } yaffs_FileStructure; + + typedef struct { +- struct list_head children; /* list of child links */ ++ struct ylist_head children; /* list of child links */ + } yaffs_DirectoryStructure; + + typedef struct { +@@ -418,23 +423,24 @@ struct yaffs_ObjectStruct { + * still in the inode cache. Free of object is defered. + * until the inode is released. + */ ++ __u8 beingCreated:1; /* This object is still being created so skip some checks. */ + + __u8 serial; /* serial number of chunk in NAND. Cached here */ + __u16 sum; /* sum of the name to speed searching */ + +- struct yaffs_DeviceStruct *myDev; /* The device I'm on */ ++ struct yaffs_DeviceStruct *myDev; /* The device I'm on */ + +- struct list_head hashLink; /* list of objects in this hash bucket */ ++ struct ylist_head hashLink; /* list of objects in this hash bucket */ + +- struct list_head hardLinks; /* all the equivalent hard linked objects */ ++ struct ylist_head hardLinks; /* all the equivalent hard linked objects */ + + /* directory structure stuff */ + /* also used for linking up the free list */ + struct yaffs_ObjectStruct *parent; +- struct list_head siblings; ++ struct ylist_head siblings; + + /* Where's my object header in NAND? */ +- int chunkId; ++ int hdrChunk; + + int nDataChunks; /* Number of data chunks attached to the file. */ + +@@ -485,7 +491,7 @@ struct yaffs_ObjectList_struct { + typedef struct yaffs_ObjectList_struct yaffs_ObjectList; + + typedef struct { +- struct list_head list; ++ struct ylist_head list; + int count; + } yaffs_ObjectBucket; + +@@ -495,11 +501,10 @@ typedef struct { + */ + + typedef struct { +- int structType; ++ int structType; + __u32 objectId; + __u32 parentId; +- int chunkId; +- ++ int hdrChunk; + yaffs_ObjectType variantType:3; + __u8 deleted:1; + __u8 softDeleted:1; +@@ -511,8 +516,7 @@ typedef struct { + + int nDataChunks; + __u32 fileSizeOrEquivalentObjectId; +- +-}yaffs_CheckpointObject; ++} yaffs_CheckpointObject; + + /*--------------------- Temporary buffers ---------------- + * +@@ -528,13 +532,13 @@ typedef struct { + /*----------------- Device ---------------------------------*/ + + struct yaffs_DeviceStruct { +- struct list_head devList; ++ struct ylist_head devList; + const char *name; + + /* Entry parameters set up way early. Yaffs sets up the rest.*/ + int nDataBytesPerChunk; /* Should be a power of 2 >= 512 */ + int nChunksPerBlock; /* does not need to be a power of 2 */ +- int nBytesPerSpare; /* spare area size */ ++ int spareBytesPerChunk; /* spare area size */ + int startBlock; /* Start block we're allowed to use */ + int endBlock; /* End block we're allowed to use */ + int nReservedBlocks; /* We want this tuneable so that we can reduce */ +@@ -544,9 +548,7 @@ struct yaffs_DeviceStruct { + /* Stuff used by the shared space checkpointing mechanism */ + /* If this value is zero, then this mechanism is disabled */ + +- int nCheckpointReservedBlocks; /* Blocks to reserve for checkpoint data */ +- +- ++/* int nCheckpointReservedBlocks; */ /* Blocks to reserve for checkpoint data */ + + + int nShortOpCaches; /* If <= 0, then short op caching is disabled, else +@@ -560,30 +562,31 @@ struct yaffs_DeviceStruct { + void *genericDevice; /* Pointer to device context + * On an mtd this holds the mtd pointer. + */ +- void *superBlock; ++ void *superBlock; + + /* NAND access functions (Must be set before calling YAFFS)*/ + +- int (*writeChunkToNAND) (struct yaffs_DeviceStruct * dev, +- int chunkInNAND, const __u8 * data, +- const yaffs_Spare * spare); +- int (*readChunkFromNAND) (struct yaffs_DeviceStruct * dev, +- int chunkInNAND, __u8 * data, +- yaffs_Spare * spare); +- int (*eraseBlockInNAND) (struct yaffs_DeviceStruct * dev, +- int blockInNAND); +- int (*initialiseNAND) (struct yaffs_DeviceStruct * dev); ++ int (*writeChunkToNAND) (struct yaffs_DeviceStruct *dev, ++ int chunkInNAND, const __u8 *data, ++ const yaffs_Spare *spare); ++ int (*readChunkFromNAND) (struct yaffs_DeviceStruct *dev, ++ int chunkInNAND, __u8 *data, ++ yaffs_Spare *spare); ++ int (*eraseBlockInNAND) (struct yaffs_DeviceStruct *dev, ++ int blockInNAND); ++ int (*initialiseNAND) (struct yaffs_DeviceStruct *dev); ++ int (*deinitialiseNAND) (struct yaffs_DeviceStruct *dev); + + #ifdef CONFIG_YAFFS_YAFFS2 +- int (*writeChunkWithTagsToNAND) (struct yaffs_DeviceStruct * dev, +- int chunkInNAND, const __u8 * data, +- const yaffs_ExtendedTags * tags); +- int (*readChunkWithTagsFromNAND) (struct yaffs_DeviceStruct * dev, +- int chunkInNAND, __u8 * data, +- yaffs_ExtendedTags * tags); +- int (*markNANDBlockBad) (struct yaffs_DeviceStruct * dev, int blockNo); +- int (*queryNANDBlock) (struct yaffs_DeviceStruct * dev, int blockNo, +- yaffs_BlockState * state, int *sequenceNumber); ++ int (*writeChunkWithTagsToNAND) (struct yaffs_DeviceStruct *dev, ++ int chunkInNAND, const __u8 *data, ++ const yaffs_ExtendedTags *tags); ++ int (*readChunkWithTagsFromNAND) (struct yaffs_DeviceStruct *dev, ++ int chunkInNAND, __u8 *data, ++ yaffs_ExtendedTags *tags); ++ int (*markNANDBlockBad) (struct yaffs_DeviceStruct *dev, int blockNo); ++ int (*queryNANDBlock) (struct yaffs_DeviceStruct *dev, int blockNo, ++ yaffs_BlockState *state, __u32 *sequenceNumber); + #endif + + int isYaffs2; +@@ -595,10 +598,12 @@ struct yaffs_DeviceStruct { + void (*removeObjectCallback)(struct yaffs_ObjectStruct *obj); + + /* Callback to mark the superblock dirsty */ +- void (*markSuperBlockDirty)(void * superblock); ++ void (*markSuperBlockDirty)(void *superblock); + + int wideTnodesDisabled; /* Set to disable wide tnodes */ + ++ YCHAR *pathDividers; /* String of legal path dividers */ ++ + + /* End of stuff that must be set before initialisation. */ + +@@ -615,16 +620,14 @@ struct yaffs_DeviceStruct { + __u32 tnodeWidth; + __u32 tnodeMask; + +- /* Stuff to support various file offses to chunk/offset translations */ +- /* "Crumbs" for nDataBytesPerChunk not being a power of 2 */ +- __u32 crumbMask; +- __u32 crumbShift; +- __u32 crumbsPerChunk; +- +- /* Straight shifting for nDataBytesPerChunk being a power of 2 */ +- __u32 chunkShift; +- __u32 chunkMask; +- ++ /* Stuff for figuring out file offset to chunk conversions */ ++ __u32 chunkShift; /* Shift value */ ++ __u32 chunkDiv; /* Divisor after shifting: 1 for power-of-2 sizes */ ++ __u32 chunkMask; /* Mask to use for power-of-2 case */ ++ ++ /* Stuff to handle inband tags */ ++ int inbandTags; ++ __u32 totalBytesPerChunk; + + #ifdef __KERNEL__ + +@@ -633,7 +636,7 @@ struct yaffs_DeviceStruct { + __u8 *spareBuffer; /* For mtdif2 use. Don't know the size of the buffer + * at compile time so we have to allocate it. + */ +- void (*putSuperFunc) (struct super_block * sb); ++ void (*putSuperFunc) (struct super_block *sb); + #endif + + int isMounted; +@@ -663,6 +666,8 @@ struct yaffs_DeviceStruct { + __u32 checkpointSum; + __u32 checkpointXor; + ++ int nCheckpointBlocksRequired; /* Number of blocks needed to store current checkpoint set */ ++ + /* Block Info */ + yaffs_BlockInfo *blockInfo; + __u8 *chunkBits; /* bitmap of chunks in use */ +@@ -684,11 +689,15 @@ struct yaffs_DeviceStruct { + yaffs_TnodeList *allocatedTnodeList; + + int isDoingGC; ++ int gcBlock; ++ int gcChunk; + + int nObjectsCreated; + yaffs_Object *freeObjects; + int nFreeObjects; + ++ int nHardLinks; ++ + yaffs_ObjectList *allocatedObjectList; + + yaffs_ObjectBucket objectBucket[YAFFS_NOBJECT_BUCKETS]; +@@ -745,8 +754,10 @@ struct yaffs_DeviceStruct { + int nBackgroundDeletions; /* Count of background deletions. */ + + ++ /* Temporary buffer management */ + yaffs_TempBuffer tempBuffer[YAFFS_N_TEMP_BUFFERS]; + int maxTemp; ++ int tempInUse; + int unmanagedTempAllocations; + int unmanagedTempDeallocations; + +@@ -758,9 +769,9 @@ struct yaffs_DeviceStruct { + + typedef struct yaffs_DeviceStruct yaffs_Device; + +-/* The static layout of bllock usage etc is stored in the super block header */ ++/* The static layout of block usage etc is stored in the super block header */ + typedef struct { +- int StructType; ++ int StructType; + int version; + int checkpointStartBlock; + int checkpointEndBlock; +@@ -773,7 +784,7 @@ typedef struct { + * must be preserved over unmount/mount cycles. + */ + typedef struct { +- int structType; ++ int structType; + int nErasedBlocks; + int allocationBlock; /* Current block being allocated off */ + __u32 allocationPage; +@@ -791,57 +802,45 @@ typedef struct { + + + typedef struct { +- int structType; +- __u32 magic; +- __u32 version; +- __u32 head; ++ int structType; ++ __u32 magic; ++ __u32 version; ++ __u32 head; + } yaffs_CheckpointValidity; + +-/* Function to manipulate block info */ +-static Y_INLINE yaffs_BlockInfo *yaffs_GetBlockInfo(yaffs_Device * dev, int blk) +-{ +- if (blk < dev->internalStartBlock || blk > dev->internalEndBlock) { +- T(YAFFS_TRACE_ERROR, +- (TSTR +- ("**>> yaffs: getBlockInfo block %d is not valid" TENDSTR), +- blk)); +- YBUG(); +- } +- return &dev->blockInfo[blk - dev->internalStartBlock]; +-} + + /*----------------------- YAFFS Functions -----------------------*/ + +-int yaffs_GutsInitialise(yaffs_Device * dev); +-void yaffs_Deinitialise(yaffs_Device * dev); ++int yaffs_GutsInitialise(yaffs_Device *dev); ++void yaffs_Deinitialise(yaffs_Device *dev); + +-int yaffs_GetNumberOfFreeChunks(yaffs_Device * dev); ++int yaffs_GetNumberOfFreeChunks(yaffs_Device *dev); + +-int yaffs_RenameObject(yaffs_Object * oldDir, const YCHAR * oldName, +- yaffs_Object * newDir, const YCHAR * newName); ++int yaffs_RenameObject(yaffs_Object *oldDir, const YCHAR *oldName, ++ yaffs_Object *newDir, const YCHAR *newName); + +-int yaffs_Unlink(yaffs_Object * dir, const YCHAR * name); +-int yaffs_DeleteFile(yaffs_Object * obj); ++int yaffs_Unlink(yaffs_Object *dir, const YCHAR *name); ++int yaffs_DeleteObject(yaffs_Object *obj); + +-int yaffs_GetObjectName(yaffs_Object * obj, YCHAR * name, int buffSize); +-int yaffs_GetObjectFileLength(yaffs_Object * obj); +-int yaffs_GetObjectInode(yaffs_Object * obj); +-unsigned yaffs_GetObjectType(yaffs_Object * obj); +-int yaffs_GetObjectLinkCount(yaffs_Object * obj); ++int yaffs_GetObjectName(yaffs_Object *obj, YCHAR *name, int buffSize); ++int yaffs_GetObjectFileLength(yaffs_Object *obj); ++int yaffs_GetObjectInode(yaffs_Object *obj); ++unsigned yaffs_GetObjectType(yaffs_Object *obj); ++int yaffs_GetObjectLinkCount(yaffs_Object *obj); + +-int yaffs_SetAttributes(yaffs_Object * obj, struct iattr *attr); +-int yaffs_GetAttributes(yaffs_Object * obj, struct iattr *attr); ++int yaffs_SetAttributes(yaffs_Object *obj, struct iattr *attr); ++int yaffs_GetAttributes(yaffs_Object *obj, struct iattr *attr); + + /* File operations */ +-int yaffs_ReadDataFromFile(yaffs_Object * obj, __u8 * buffer, loff_t offset, +- int nBytes); +-int yaffs_WriteDataToFile(yaffs_Object * obj, const __u8 * buffer, loff_t offset, +- int nBytes, int writeThrough); +-int yaffs_ResizeFile(yaffs_Object * obj, loff_t newSize); +- +-yaffs_Object *yaffs_MknodFile(yaffs_Object * parent, const YCHAR * name, +- __u32 mode, __u32 uid, __u32 gid); +-int yaffs_FlushFile(yaffs_Object * obj, int updateTime); ++int yaffs_ReadDataFromFile(yaffs_Object *obj, __u8 *buffer, loff_t offset, ++ int nBytes); ++int yaffs_WriteDataToFile(yaffs_Object *obj, const __u8 *buffer, loff_t offset, ++ int nBytes, int writeThrough); ++int yaffs_ResizeFile(yaffs_Object *obj, loff_t newSize); ++ ++yaffs_Object *yaffs_MknodFile(yaffs_Object *parent, const YCHAR *name, ++ __u32 mode, __u32 uid, __u32 gid); ++int yaffs_FlushFile(yaffs_Object *obj, int updateTime); + + /* Flushing and checkpointing */ + void yaffs_FlushEntireDeviceCache(yaffs_Device *dev); +@@ -850,33 +849,33 @@ int yaffs_CheckpointSave(yaffs_Device *d + int yaffs_CheckpointRestore(yaffs_Device *dev); + + /* Directory operations */ +-yaffs_Object *yaffs_MknodDirectory(yaffs_Object * parent, const YCHAR * name, +- __u32 mode, __u32 uid, __u32 gid); +-yaffs_Object *yaffs_FindObjectByName(yaffs_Object * theDir, const YCHAR * name); +-int yaffs_ApplyToDirectoryChildren(yaffs_Object * theDir, ++yaffs_Object *yaffs_MknodDirectory(yaffs_Object *parent, const YCHAR *name, ++ __u32 mode, __u32 uid, __u32 gid); ++yaffs_Object *yaffs_FindObjectByName(yaffs_Object *theDir, const YCHAR *name); ++int yaffs_ApplyToDirectoryChildren(yaffs_Object *theDir, + int (*fn) (yaffs_Object *)); + +-yaffs_Object *yaffs_FindObjectByNumber(yaffs_Device * dev, __u32 number); ++yaffs_Object *yaffs_FindObjectByNumber(yaffs_Device *dev, __u32 number); + + /* Link operations */ +-yaffs_Object *yaffs_Link(yaffs_Object * parent, const YCHAR * name, +- yaffs_Object * equivalentObject); ++yaffs_Object *yaffs_Link(yaffs_Object *parent, const YCHAR *name, ++ yaffs_Object *equivalentObject); + +-yaffs_Object *yaffs_GetEquivalentObject(yaffs_Object * obj); ++yaffs_Object *yaffs_GetEquivalentObject(yaffs_Object *obj); + + /* Symlink operations */ +-yaffs_Object *yaffs_MknodSymLink(yaffs_Object * parent, const YCHAR * name, ++yaffs_Object *yaffs_MknodSymLink(yaffs_Object *parent, const YCHAR *name, + __u32 mode, __u32 uid, __u32 gid, +- const YCHAR * alias); +-YCHAR *yaffs_GetSymlinkAlias(yaffs_Object * obj); ++ const YCHAR *alias); ++YCHAR *yaffs_GetSymlinkAlias(yaffs_Object *obj); + + /* Special inodes (fifos, sockets and devices) */ +-yaffs_Object *yaffs_MknodSpecial(yaffs_Object * parent, const YCHAR * name, ++yaffs_Object *yaffs_MknodSpecial(yaffs_Object *parent, const YCHAR *name, + __u32 mode, __u32 uid, __u32 gid, __u32 rdev); + + /* Special directories */ +-yaffs_Object *yaffs_Root(yaffs_Device * dev); +-yaffs_Object *yaffs_LostNFound(yaffs_Device * dev); ++yaffs_Object *yaffs_Root(yaffs_Device *dev); ++yaffs_Object *yaffs_LostNFound(yaffs_Device *dev); + + #ifdef CONFIG_YAFFS_WINCE + /* CONFIG_YAFFS_WINCE special stuff */ +@@ -885,18 +884,21 @@ void yfsd_WinFileTimeNow(__u32 target[2] + + #ifdef __KERNEL__ + +-void yaffs_HandleDeferedFree(yaffs_Object * obj); ++void yaffs_HandleDeferedFree(yaffs_Object *obj); + #endif + + /* Debug dump */ +-int yaffs_DumpObject(yaffs_Object * obj); ++int yaffs_DumpObject(yaffs_Object *obj); + +-void yaffs_GutsTest(yaffs_Device * dev); ++void yaffs_GutsTest(yaffs_Device *dev); + + /* A few useful functions */ +-void yaffs_InitialiseTags(yaffs_ExtendedTags * tags); +-void yaffs_DeleteChunk(yaffs_Device * dev, int chunkId, int markNAND, int lyn); +-int yaffs_CheckFF(__u8 * buffer, int nBytes); ++void yaffs_InitialiseTags(yaffs_ExtendedTags *tags); ++void yaffs_DeleteChunk(yaffs_Device *dev, int chunkId, int markNAND, int lyn); ++int yaffs_CheckFF(__u8 *buffer, int nBytes); + void yaffs_HandleChunkError(yaffs_Device *dev, yaffs_BlockInfo *bi); + ++__u8 *yaffs_GetTempBuffer(yaffs_Device *dev, int lineNo); ++void yaffs_ReleaseTempBuffer(yaffs_Device *dev, __u8 *buffer, int lineNo); ++ + #endif +--- a/fs/yaffs2/yaffs_mtdif1.c ++++ b/fs/yaffs2/yaffs_mtdif1.c +@@ -26,7 +26,7 @@ + #include "yportenv.h" + #include "yaffs_guts.h" + #include "yaffs_packedtags1.h" +-#include "yaffs_tagscompat.h" // for yaffs_CalcTagsECC ++#include "yaffs_tagscompat.h" /* for yaffs_CalcTagsECC */ + + #include "linux/kernel.h" + #include "linux/version.h" +@@ -34,9 +34,9 @@ + #include "linux/mtd/mtd.h" + + /* Don't compile this module if we don't have MTD's mtd_oob_ops interface */ +-#if (LINUX_VERSION_CODE > KERNEL_VERSION(2,6,17)) ++#if (MTD_VERSION_CODE > MTD_VERSION(2, 6, 17)) + +-const char *yaffs_mtdif1_c_version = "$Id: yaffs_mtdif1.c,v 1.3 2007/05/15 20:16:11 ian Exp $"; ++const char *yaffs_mtdif1_c_version = "$Id: yaffs_mtdif1.c,v 1.10 2009-03-09 07:41:10 charles Exp $"; + + #ifndef CONFIG_YAFFS_9BYTE_TAGS + # define YTAG1_SIZE 8 +@@ -89,9 +89,9 @@ static struct nand_ecclayout nand_oob_16 + * Returns YAFFS_OK or YAFFS_FAIL. + */ + int nandmtd1_WriteChunkWithTagsToNAND(yaffs_Device *dev, +- int chunkInNAND, const __u8 * data, const yaffs_ExtendedTags * etags) ++ int chunkInNAND, const __u8 *data, const yaffs_ExtendedTags *etags) + { +- struct mtd_info * mtd = dev->genericDevice; ++ struct mtd_info *mtd = dev->genericDevice; + int chunkBytes = dev->nDataBytesPerChunk; + loff_t addr = ((loff_t)chunkInNAND) * chunkBytes; + struct mtd_oob_ops ops; +@@ -146,7 +146,7 @@ int nandmtd1_WriteChunkWithTagsToNAND(ya + + /* Return with empty ExtendedTags but add eccResult. + */ +-static int rettags(yaffs_ExtendedTags * etags, int eccResult, int retval) ++static int rettags(yaffs_ExtendedTags *etags, int eccResult, int retval) + { + if (etags) { + memset(etags, 0, sizeof(*etags)); +@@ -169,9 +169,9 @@ static int rettags(yaffs_ExtendedTags * + * Returns YAFFS_OK or YAFFS_FAIL. + */ + int nandmtd1_ReadChunkWithTagsFromNAND(yaffs_Device *dev, +- int chunkInNAND, __u8 * data, yaffs_ExtendedTags * etags) ++ int chunkInNAND, __u8 *data, yaffs_ExtendedTags *etags) + { +- struct mtd_info * mtd = dev->genericDevice; ++ struct mtd_info *mtd = dev->genericDevice; + int chunkBytes = dev->nDataBytesPerChunk; + loff_t addr = ((loff_t)chunkInNAND) * chunkBytes; + int eccres = YAFFS_ECC_RESULT_NO_ERROR; +@@ -189,7 +189,7 @@ int nandmtd1_ReadChunkWithTagsFromNAND(y + ops.datbuf = data; + ops.oobbuf = (__u8 *)&pt1; + +-#if (LINUX_VERSION_CODE < KERNEL_VERSION(2,6,20)) ++#if (MTD_VERSION_CODE < MTD_VERSION(2, 6, 20)) + /* In MTD 2.6.18 to 2.6.19 nand_base.c:nand_do_read_oob() has a bug; + * help it out with ops.len = ops.ooblen when ops.datbuf == NULL. + */ +@@ -284,11 +284,11 @@ int nandmtd1_ReadChunkWithTagsFromNAND(y + */ + int nandmtd1_MarkNANDBlockBad(struct yaffs_DeviceStruct *dev, int blockNo) + { +- struct mtd_info * mtd = dev->genericDevice; ++ struct mtd_info *mtd = dev->genericDevice; + int blocksize = dev->nChunksPerBlock * dev->nDataBytesPerChunk; + int retval; + +- yaffs_trace(YAFFS_TRACE_BAD_BLOCKS, "marking block %d bad", blockNo); ++ yaffs_trace(YAFFS_TRACE_BAD_BLOCKS, "marking block %d bad\n", blockNo); + + retval = mtd->block_markbad(mtd, (loff_t)blocksize * blockNo); + return (retval) ? YAFFS_FAIL : YAFFS_OK; +@@ -298,7 +298,7 @@ int nandmtd1_MarkNANDBlockBad(struct yaf + * + * Returns YAFFS_OK or YAFFS_FAIL. + */ +-static int nandmtd1_TestPrerequists(struct mtd_info * mtd) ++static int nandmtd1_TestPrerequists(struct mtd_info *mtd) + { + /* 2.6.18 has mtd->ecclayout->oobavail */ + /* 2.6.21 has mtd->ecclayout->oobavail and mtd->oobavail */ +@@ -323,10 +323,11 @@ static int nandmtd1_TestPrerequists(stru + * Always returns YAFFS_OK. + */ + int nandmtd1_QueryNANDBlock(struct yaffs_DeviceStruct *dev, int blockNo, +- yaffs_BlockState * pState, int *pSequenceNumber) ++ yaffs_BlockState *pState, __u32 *pSequenceNumber) + { +- struct mtd_info * mtd = dev->genericDevice; ++ struct mtd_info *mtd = dev->genericDevice; + int chunkNo = blockNo * dev->nChunksPerBlock; ++ loff_t addr = (loff_t)chunkNo * dev->nDataBytesPerChunk; + yaffs_ExtendedTags etags; + int state = YAFFS_BLOCK_STATE_DEAD; + int seqnum = 0; +@@ -335,21 +336,22 @@ int nandmtd1_QueryNANDBlock(struct yaffs + /* We don't yet have a good place to test for MTD config prerequists. + * Do it here as we are called during the initial scan. + */ +- if (nandmtd1_TestPrerequists(mtd) != YAFFS_OK) { ++ if (nandmtd1_TestPrerequists(mtd) != YAFFS_OK) + return YAFFS_FAIL; +- } + + retval = nandmtd1_ReadChunkWithTagsFromNAND(dev, chunkNo, NULL, &etags); ++ etags.blockBad = (mtd->block_isbad)(mtd, addr); + if (etags.blockBad) { + yaffs_trace(YAFFS_TRACE_BAD_BLOCKS, +- "block %d is marked bad", blockNo); ++ "block %d is marked bad\n", blockNo); + state = YAFFS_BLOCK_STATE_DEAD; +- } +- else if (etags.chunkUsed) { ++ } else if (etags.eccResult != YAFFS_ECC_RESULT_NO_ERROR) { ++ /* bad tags, need to look more closely */ ++ state = YAFFS_BLOCK_STATE_NEEDS_SCANNING; ++ } else if (etags.chunkUsed) { + state = YAFFS_BLOCK_STATE_NEEDS_SCANNING; + seqnum = etags.sequenceNumber; +- } +- else { ++ } else { + state = YAFFS_BLOCK_STATE_EMPTY; + } + +@@ -360,4 +362,4 @@ int nandmtd1_QueryNANDBlock(struct yaffs + return YAFFS_OK; + } + +-#endif /*KERNEL_VERSION*/ ++#endif /*MTD_VERSION*/ +--- a/fs/yaffs2/yaffs_mtdif1.h ++++ b/fs/yaffs2/yaffs_mtdif1.h +@@ -14,15 +14,15 @@ + #ifndef __YAFFS_MTDIF1_H__ + #define __YAFFS_MTDIF1_H__ + +-int nandmtd1_WriteChunkWithTagsToNAND(yaffs_Device * dev, int chunkInNAND, +- const __u8 * data, const yaffs_ExtendedTags * tags); ++int nandmtd1_WriteChunkWithTagsToNAND(yaffs_Device *dev, int chunkInNAND, ++ const __u8 *data, const yaffs_ExtendedTags *tags); + +-int nandmtd1_ReadChunkWithTagsFromNAND(yaffs_Device * dev, int chunkInNAND, +- __u8 * data, yaffs_ExtendedTags * tags); ++int nandmtd1_ReadChunkWithTagsFromNAND(yaffs_Device *dev, int chunkInNAND, ++ __u8 *data, yaffs_ExtendedTags *tags); + + int nandmtd1_MarkNANDBlockBad(struct yaffs_DeviceStruct *dev, int blockNo); + + int nandmtd1_QueryNANDBlock(struct yaffs_DeviceStruct *dev, int blockNo, +- yaffs_BlockState * state, int *sequenceNumber); ++ yaffs_BlockState *state, __u32 *sequenceNumber); + + #endif +--- a/fs/yaffs2/yaffs_mtdif2.c ++++ b/fs/yaffs2/yaffs_mtdif2.c +@@ -14,7 +14,7 @@ + /* mtd interface for YAFFS2 */ + + const char *yaffs_mtdif2_c_version = +- "$Id: yaffs_mtdif2.c,v 1.17 2007-02-14 01:09:06 wookey Exp $"; ++ "$Id: yaffs_mtdif2.c,v 1.23 2009-03-06 17:20:53 wookey Exp $"; + + #include "yportenv.h" + +@@ -27,19 +27,23 @@ const char *yaffs_mtdif2_c_version = + + #include "yaffs_packedtags2.h" + +-int nandmtd2_WriteChunkWithTagsToNAND(yaffs_Device * dev, int chunkInNAND, +- const __u8 * data, +- const yaffs_ExtendedTags * tags) ++/* NB For use with inband tags.... ++ * We assume that the data buffer is of size totalBytersPerChunk so that we can also ++ * use it to load the tags. ++ */ ++int nandmtd2_WriteChunkWithTagsToNAND(yaffs_Device *dev, int chunkInNAND, ++ const __u8 *data, ++ const yaffs_ExtendedTags *tags) + { + struct mtd_info *mtd = (struct mtd_info *)(dev->genericDevice); +-#if (LINUX_VERSION_CODE > KERNEL_VERSION(2,6,17)) ++#if (MTD_VERSION_CODE > MTD_VERSION(2, 6, 17)) + struct mtd_oob_ops ops; + #else + size_t dummy; + #endif + int retval = 0; + +- loff_t addr = ((loff_t) chunkInNAND) * dev->nDataBytesPerChunk; ++ loff_t addr; + + yaffs_PackedTags2 pt; + +@@ -48,46 +52,40 @@ int nandmtd2_WriteChunkWithTagsToNAND(ya + ("nandmtd2_WriteChunkWithTagsToNAND chunk %d data %p tags %p" + TENDSTR), chunkInNAND, data, tags)); + +-#if (LINUX_VERSION_CODE > KERNEL_VERSION(2,6,17)) +- if (tags) +- yaffs_PackTags2(&pt, tags); +- else +- BUG(); /* both tags and data should always be present */ + +- if (data) { +- ops.mode = MTD_OOB_AUTO; +- ops.ooblen = sizeof(pt); +- ops.len = dev->nDataBytesPerChunk; +- ops.ooboffs = 0; +- ops.datbuf = (__u8 *)data; +- ops.oobbuf = (void *)&pt; +- retval = mtd->write_oob(mtd, addr, &ops); ++ addr = ((loff_t) chunkInNAND) * dev->totalBytesPerChunk; ++ ++ /* For yaffs2 writing there must be both data and tags. ++ * If we're using inband tags, then the tags are stuffed into ++ * the end of the data buffer. ++ */ ++ if (!data || !tags) ++ BUG(); ++ else if (dev->inbandTags) { ++ yaffs_PackedTags2TagsPart *pt2tp; ++ pt2tp = (yaffs_PackedTags2TagsPart *)(data + dev->nDataBytesPerChunk); ++ yaffs_PackTags2TagsPart(pt2tp, tags); + } else +- BUG(); /* both tags and data should always be present */ +-#else +- if (tags) { + yaffs_PackTags2(&pt, tags); +- } + +- if (data && tags) { +- if (dev->useNANDECC) +- retval = +- mtd->write_ecc(mtd, addr, dev->nDataBytesPerChunk, +- &dummy, data, (__u8 *) & pt, NULL); +- else +- retval = +- mtd->write_ecc(mtd, addr, dev->nDataBytesPerChunk, +- &dummy, data, (__u8 *) & pt, NULL); +- } else { +- if (data) +- retval = +- mtd->write(mtd, addr, dev->nDataBytesPerChunk, &dummy, +- data); +- if (tags) +- retval = +- mtd->write_oob(mtd, addr, mtd->oobsize, &dummy, +- (__u8 *) & pt); ++#if (LINUX_VERSION_CODE > KERNEL_VERSION(2, 6, 17)) ++ ops.mode = MTD_OOB_AUTO; ++ ops.ooblen = (dev->inbandTags) ? 0 : sizeof(pt); ++ ops.len = dev->totalBytesPerChunk; ++ ops.ooboffs = 0; ++ ops.datbuf = (__u8 *)data; ++ ops.oobbuf = (dev->inbandTags) ? NULL : (void *)&pt; ++ retval = mtd->write_oob(mtd, addr, &ops); + ++#else ++ if (!dev->inbandTags) { ++ retval = ++ mtd->write_ecc(mtd, addr, dev->nDataBytesPerChunk, ++ &dummy, data, (__u8 *) &pt, NULL); ++ } else { ++ retval = ++ mtd->write(mtd, addr, dev->totalBytesPerChunk, &dummy, ++ data); + } + #endif + +@@ -97,17 +95,18 @@ int nandmtd2_WriteChunkWithTagsToNAND(ya + return YAFFS_FAIL; + } + +-int nandmtd2_ReadChunkWithTagsFromNAND(yaffs_Device * dev, int chunkInNAND, +- __u8 * data, yaffs_ExtendedTags * tags) ++int nandmtd2_ReadChunkWithTagsFromNAND(yaffs_Device *dev, int chunkInNAND, ++ __u8 *data, yaffs_ExtendedTags *tags) + { + struct mtd_info *mtd = (struct mtd_info *)(dev->genericDevice); +-#if (LINUX_VERSION_CODE > KERNEL_VERSION(2,6,17)) ++#if (MTD_VERSION_CODE > MTD_VERSION(2, 6, 17)) + struct mtd_oob_ops ops; + #endif + size_t dummy; + int retval = 0; ++ int localData = 0; + +- loff_t addr = ((loff_t) chunkInNAND) * dev->nDataBytesPerChunk; ++ loff_t addr = ((loff_t) chunkInNAND) * dev->totalBytesPerChunk; + + yaffs_PackedTags2 pt; + +@@ -116,9 +115,20 @@ int nandmtd2_ReadChunkWithTagsFromNAND(y + ("nandmtd2_ReadChunkWithTagsFromNAND chunk %d data %p tags %p" + TENDSTR), chunkInNAND, data, tags)); + +-#if (LINUX_VERSION_CODE > KERNEL_VERSION(2,6,17)) +- if (data && !tags) +- retval = mtd->read(mtd, addr, dev->nDataBytesPerChunk, ++ if (dev->inbandTags) { ++ ++ if (!data) { ++ localData = 1; ++ data = yaffs_GetTempBuffer(dev, __LINE__); ++ } ++ ++ ++ } ++ ++ ++#if (LINUX_VERSION_CODE > KERNEL_VERSION(2, 6, 17)) ++ if (dev->inbandTags || (data && !tags)) ++ retval = mtd->read(mtd, addr, dev->totalBytesPerChunk, + &dummy, data); + else if (tags) { + ops.mode = MTD_OOB_AUTO; +@@ -130,38 +140,42 @@ int nandmtd2_ReadChunkWithTagsFromNAND(y + retval = mtd->read_oob(mtd, addr, &ops); + } + #else +- if (data && tags) { +- if (dev->useNANDECC) { +- retval = +- mtd->read_ecc(mtd, addr, dev->nDataBytesPerChunk, +- &dummy, data, dev->spareBuffer, +- NULL); +- } else { +- retval = +- mtd->read_ecc(mtd, addr, dev->nDataBytesPerChunk, ++ if (!dev->inbandTags && data && tags) { ++ ++ retval = mtd->read_ecc(mtd, addr, dev->nDataBytesPerChunk, + &dummy, data, dev->spareBuffer, + NULL); +- } + } else { + if (data) + retval = + mtd->read(mtd, addr, dev->nDataBytesPerChunk, &dummy, + data); +- if (tags) ++ if (!dev->inbandTags && tags) + retval = + mtd->read_oob(mtd, addr, mtd->oobsize, &dummy, + dev->spareBuffer); + } + #endif + +- memcpy(&pt, dev->spareBuffer, sizeof(pt)); + +- if (tags) +- yaffs_UnpackTags2(tags, &pt); ++ if (dev->inbandTags) { ++ if (tags) { ++ yaffs_PackedTags2TagsPart *pt2tp; ++ pt2tp = (yaffs_PackedTags2TagsPart *)&data[dev->nDataBytesPerChunk]; ++ yaffs_UnpackTags2TagsPart(tags, pt2tp); ++ } ++ } else { ++ if (tags) { ++ memcpy(&pt, dev->spareBuffer, sizeof(pt)); ++ yaffs_UnpackTags2(tags, &pt); ++ } ++ } + +- if(tags && retval == -EBADMSG && tags->eccResult == YAFFS_ECC_RESULT_NO_ERROR) +- tags->eccResult = YAFFS_ECC_RESULT_UNFIXED; ++ if (localData) ++ yaffs_ReleaseTempBuffer(dev, data, __LINE__); + ++ if (tags && retval == -EBADMSG && tags->eccResult == YAFFS_ECC_RESULT_NO_ERROR) ++ tags->eccResult = YAFFS_ECC_RESULT_UNFIXED; + if (retval == 0) + return YAFFS_OK; + else +@@ -178,7 +192,7 @@ int nandmtd2_MarkNANDBlockBad(struct yaf + retval = + mtd->block_markbad(mtd, + blockNo * dev->nChunksPerBlock * +- dev->nDataBytesPerChunk); ++ dev->totalBytesPerChunk); + + if (retval == 0) + return YAFFS_OK; +@@ -188,7 +202,7 @@ int nandmtd2_MarkNANDBlockBad(struct yaf + } + + int nandmtd2_QueryNANDBlock(struct yaffs_DeviceStruct *dev, int blockNo, +- yaffs_BlockState * state, int *sequenceNumber) ++ yaffs_BlockState *state, __u32 *sequenceNumber) + { + struct mtd_info *mtd = (struct mtd_info *)(dev->genericDevice); + int retval; +@@ -198,7 +212,7 @@ int nandmtd2_QueryNANDBlock(struct yaffs + retval = + mtd->block_isbad(mtd, + blockNo * dev->nChunksPerBlock * +- dev->nDataBytesPerChunk); ++ dev->totalBytesPerChunk); + + if (retval) { + T(YAFFS_TRACE_MTD, (TSTR("block is bad" TENDSTR))); +--- a/fs/yaffs2/yaffs_mtdif2.h ++++ b/fs/yaffs2/yaffs_mtdif2.h +@@ -17,13 +17,13 @@ + #define __YAFFS_MTDIF2_H__ + + #include "yaffs_guts.h" +-int nandmtd2_WriteChunkWithTagsToNAND(yaffs_Device * dev, int chunkInNAND, +- const __u8 * data, +- const yaffs_ExtendedTags * tags); +-int nandmtd2_ReadChunkWithTagsFromNAND(yaffs_Device * dev, int chunkInNAND, +- __u8 * data, yaffs_ExtendedTags * tags); ++int nandmtd2_WriteChunkWithTagsToNAND(yaffs_Device *dev, int chunkInNAND, ++ const __u8 *data, ++ const yaffs_ExtendedTags *tags); ++int nandmtd2_ReadChunkWithTagsFromNAND(yaffs_Device *dev, int chunkInNAND, ++ __u8 *data, yaffs_ExtendedTags *tags); + int nandmtd2_MarkNANDBlockBad(struct yaffs_DeviceStruct *dev, int blockNo); + int nandmtd2_QueryNANDBlock(struct yaffs_DeviceStruct *dev, int blockNo, +- yaffs_BlockState * state, int *sequenceNumber); ++ yaffs_BlockState *state, __u32 *sequenceNumber); + + #endif +--- a/fs/yaffs2/yaffs_mtdif.c ++++ b/fs/yaffs2/yaffs_mtdif.c +@@ -12,7 +12,7 @@ + */ + + const char *yaffs_mtdif_c_version = +- "$Id: yaffs_mtdif.c,v 1.19 2007-02-14 01:09:06 wookey Exp $"; ++ "$Id: yaffs_mtdif.c,v 1.22 2009-03-06 17:20:51 wookey Exp $"; + + #include "yportenv.h" + +@@ -24,7 +24,7 @@ const char *yaffs_mtdif_c_version = + #include "linux/time.h" + #include "linux/mtd/nand.h" + +-#if (LINUX_VERSION_CODE < KERNEL_VERSION(2,6,18)) ++#if (MTD_VERSION_CODE < MTD_VERSION(2, 6, 18)) + static struct nand_oobinfo yaffs_oobinfo = { + .useecc = 1, + .eccbytes = 6, +@@ -36,7 +36,7 @@ static struct nand_oobinfo yaffs_noeccin + }; + #endif + +-#if (LINUX_VERSION_CODE > KERNEL_VERSION(2,6,17)) ++#if (MTD_VERSION_CODE > MTD_VERSION(2, 6, 17)) + static inline void translate_spare2oob(const yaffs_Spare *spare, __u8 *oob) + { + oob[0] = spare->tagByte0; +@@ -45,8 +45,8 @@ static inline void translate_spare2oob(c + oob[3] = spare->tagByte3; + oob[4] = spare->tagByte4; + oob[5] = spare->tagByte5 & 0x3f; +- oob[5] |= spare->blockStatus == 'Y' ? 0: 0x80; +- oob[5] |= spare->pageStatus == 0 ? 0: 0x40; ++ oob[5] |= spare->blockStatus == 'Y' ? 0 : 0x80; ++ oob[5] |= spare->pageStatus == 0 ? 0 : 0x40; + oob[6] = spare->tagByte6; + oob[7] = spare->tagByte7; + } +@@ -71,18 +71,18 @@ static inline void translate_oob2spare(y + } + #endif + +-int nandmtd_WriteChunkToNAND(yaffs_Device * dev, int chunkInNAND, +- const __u8 * data, const yaffs_Spare * spare) ++int nandmtd_WriteChunkToNAND(yaffs_Device *dev, int chunkInNAND, ++ const __u8 *data, const yaffs_Spare *spare) + { + struct mtd_info *mtd = (struct mtd_info *)(dev->genericDevice); +-#if (LINUX_VERSION_CODE > KERNEL_VERSION(2,6,17)) ++#if (MTD_VERSION_CODE > MTD_VERSION(2, 6, 17)) + struct mtd_oob_ops ops; + #endif + size_t dummy; + int retval = 0; + + loff_t addr = ((loff_t) chunkInNAND) * dev->nDataBytesPerChunk; +-#if (LINUX_VERSION_CODE > KERNEL_VERSION(2,6,17)) ++#if (MTD_VERSION_CODE > MTD_VERSION(2, 6, 17)) + __u8 spareAsBytes[8]; /* OOB */ + + if (data && !spare) +@@ -135,18 +135,18 @@ int nandmtd_WriteChunkToNAND(yaffs_Devic + return YAFFS_FAIL; + } + +-int nandmtd_ReadChunkFromNAND(yaffs_Device * dev, int chunkInNAND, __u8 * data, +- yaffs_Spare * spare) ++int nandmtd_ReadChunkFromNAND(yaffs_Device *dev, int chunkInNAND, __u8 *data, ++ yaffs_Spare *spare) + { + struct mtd_info *mtd = (struct mtd_info *)(dev->genericDevice); +-#if (LINUX_VERSION_CODE > KERNEL_VERSION(2,6,17)) ++#if (MTD_VERSION_CODE > MTD_VERSION(2, 6, 17)) + struct mtd_oob_ops ops; + #endif + size_t dummy; + int retval = 0; + + loff_t addr = ((loff_t) chunkInNAND) * dev->nDataBytesPerChunk; +-#if (LINUX_VERSION_CODE > KERNEL_VERSION(2,6,17)) ++#if (MTD_VERSION_CODE > MTD_VERSION(2, 6, 17)) + __u8 spareAsBytes[8]; /* OOB */ + + if (data && !spare) +@@ -205,7 +205,7 @@ int nandmtd_ReadChunkFromNAND(yaffs_Devi + return YAFFS_FAIL; + } + +-int nandmtd_EraseBlockInNAND(yaffs_Device * dev, int blockNumber) ++int nandmtd_EraseBlockInNAND(yaffs_Device *dev, int blockNumber) + { + struct mtd_info *mtd = (struct mtd_info *)(dev->genericDevice); + __u32 addr = +@@ -234,7 +234,7 @@ int nandmtd_EraseBlockInNAND(yaffs_Devic + return YAFFS_FAIL; + } + +-int nandmtd_InitialiseNAND(yaffs_Device * dev) ++int nandmtd_InitialiseNAND(yaffs_Device *dev) + { + return YAFFS_OK; + } +--- a/fs/yaffs2/yaffs_mtdif.h ++++ b/fs/yaffs2/yaffs_mtdif.h +@@ -18,10 +18,15 @@ + + #include "yaffs_guts.h" + +-int nandmtd_WriteChunkToNAND(yaffs_Device * dev, int chunkInNAND, +- const __u8 * data, const yaffs_Spare * spare); +-int nandmtd_ReadChunkFromNAND(yaffs_Device * dev, int chunkInNAND, __u8 * data, +- yaffs_Spare * spare); +-int nandmtd_EraseBlockInNAND(yaffs_Device * dev, int blockNumber); +-int nandmtd_InitialiseNAND(yaffs_Device * dev); ++#if (MTD_VERSION_CODE < MTD_VERSION(2, 6, 18)) ++extern struct nand_oobinfo yaffs_oobinfo; ++extern struct nand_oobinfo yaffs_noeccinfo; ++#endif ++ ++int nandmtd_WriteChunkToNAND(yaffs_Device *dev, int chunkInNAND, ++ const __u8 *data, const yaffs_Spare *spare); ++int nandmtd_ReadChunkFromNAND(yaffs_Device *dev, int chunkInNAND, __u8 *data, ++ yaffs_Spare *spare); ++int nandmtd_EraseBlockInNAND(yaffs_Device *dev, int blockNumber); ++int nandmtd_InitialiseNAND(yaffs_Device *dev); + #endif +--- a/fs/yaffs2/yaffs_nand.c ++++ b/fs/yaffs2/yaffs_nand.c +@@ -12,16 +12,17 @@ + */ + + const char *yaffs_nand_c_version = +- "$Id: yaffs_nand.c,v 1.7 2007-02-14 01:09:06 wookey Exp $"; ++ "$Id: yaffs_nand.c,v 1.10 2009-03-06 17:20:54 wookey Exp $"; + + #include "yaffs_nand.h" + #include "yaffs_tagscompat.h" + #include "yaffs_tagsvalidity.h" + ++#include "yaffs_getblockinfo.h" + +-int yaffs_ReadChunkWithTagsFromNAND(yaffs_Device * dev, int chunkInNAND, +- __u8 * buffer, +- yaffs_ExtendedTags * tags) ++int yaffs_ReadChunkWithTagsFromNAND(yaffs_Device *dev, int chunkInNAND, ++ __u8 *buffer, ++ yaffs_ExtendedTags *tags) + { + int result; + yaffs_ExtendedTags localTags; +@@ -29,7 +30,7 @@ int yaffs_ReadChunkWithTagsFromNAND(yaff + int realignedChunkInNAND = chunkInNAND - dev->chunkOffset; + + /* If there are no tags provided, use local tags to get prioritised gc working */ +- if(!tags) ++ if (!tags) + tags = &localTags; + + if (dev->readChunkWithTagsFromNAND) +@@ -40,20 +41,20 @@ int yaffs_ReadChunkWithTagsFromNAND(yaff + realignedChunkInNAND, + buffer, + tags); +- if(tags && +- tags->eccResult > YAFFS_ECC_RESULT_NO_ERROR){ ++ if (tags && ++ tags->eccResult > YAFFS_ECC_RESULT_NO_ERROR) { + + yaffs_BlockInfo *bi = yaffs_GetBlockInfo(dev, chunkInNAND/dev->nChunksPerBlock); +- yaffs_HandleChunkError(dev,bi); ++ yaffs_HandleChunkError(dev, bi); + } + + return result; + } + +-int yaffs_WriteChunkWithTagsToNAND(yaffs_Device * dev, ++int yaffs_WriteChunkWithTagsToNAND(yaffs_Device *dev, + int chunkInNAND, +- const __u8 * buffer, +- yaffs_ExtendedTags * tags) ++ const __u8 *buffer, ++ yaffs_ExtendedTags *tags) + { + chunkInNAND -= dev->chunkOffset; + +@@ -84,7 +85,7 @@ int yaffs_WriteChunkWithTagsToNAND(yaffs + tags); + } + +-int yaffs_MarkBlockBad(yaffs_Device * dev, int blockNo) ++int yaffs_MarkBlockBad(yaffs_Device *dev, int blockNo) + { + blockNo -= dev->blockOffset; + +@@ -95,10 +96,10 @@ int yaffs_MarkBlockBad(yaffs_Device * de + return yaffs_TagsCompatabilityMarkNANDBlockBad(dev, blockNo); + } + +-int yaffs_QueryInitialBlockState(yaffs_Device * dev, ++int yaffs_QueryInitialBlockState(yaffs_Device *dev, + int blockNo, +- yaffs_BlockState * state, +- unsigned *sequenceNumber) ++ yaffs_BlockState *state, ++ __u32 *sequenceNumber) + { + blockNo -= dev->blockOffset; + +--- a/fs/yaffs2/yaffs_nandemul2k.h ++++ b/fs/yaffs2/yaffs_nandemul2k.h +@@ -21,14 +21,14 @@ + #include "yaffs_guts.h" + + int nandemul2k_WriteChunkWithTagsToNAND(struct yaffs_DeviceStruct *dev, +- int chunkInNAND, const __u8 * data, +- yaffs_ExtendedTags * tags); ++ int chunkInNAND, const __u8 *data, ++ const yaffs_ExtendedTags *tags); + int nandemul2k_ReadChunkWithTagsFromNAND(struct yaffs_DeviceStruct *dev, +- int chunkInNAND, __u8 * data, +- yaffs_ExtendedTags * tags); ++ int chunkInNAND, __u8 *data, ++ yaffs_ExtendedTags *tags); + int nandemul2k_MarkNANDBlockBad(struct yaffs_DeviceStruct *dev, int blockNo); + int nandemul2k_QueryNANDBlock(struct yaffs_DeviceStruct *dev, int blockNo, +- yaffs_BlockState * state, int *sequenceNumber); ++ yaffs_BlockState *state, __u32 *sequenceNumber); + int nandemul2k_EraseBlockInNAND(struct yaffs_DeviceStruct *dev, + int blockInNAND); + int nandemul2k_InitialiseNAND(struct yaffs_DeviceStruct *dev); +--- a/fs/yaffs2/yaffs_nand.h ++++ b/fs/yaffs2/yaffs_nand.h +@@ -19,21 +19,21 @@ + + + +-int yaffs_ReadChunkWithTagsFromNAND(yaffs_Device * dev, int chunkInNAND, +- __u8 * buffer, +- yaffs_ExtendedTags * tags); +- +-int yaffs_WriteChunkWithTagsToNAND(yaffs_Device * dev, +- int chunkInNAND, +- const __u8 * buffer, +- yaffs_ExtendedTags * tags); +- +-int yaffs_MarkBlockBad(yaffs_Device * dev, int blockNo); +- +-int yaffs_QueryInitialBlockState(yaffs_Device * dev, +- int blockNo, +- yaffs_BlockState * state, +- unsigned *sequenceNumber); ++int yaffs_ReadChunkWithTagsFromNAND(yaffs_Device *dev, int chunkInNAND, ++ __u8 *buffer, ++ yaffs_ExtendedTags *tags); ++ ++int yaffs_WriteChunkWithTagsToNAND(yaffs_Device *dev, ++ int chunkInNAND, ++ const __u8 *buffer, ++ yaffs_ExtendedTags *tags); ++ ++int yaffs_MarkBlockBad(yaffs_Device *dev, int blockNo); ++ ++int yaffs_QueryInitialBlockState(yaffs_Device *dev, ++ int blockNo, ++ yaffs_BlockState *state, ++ unsigned *sequenceNumber); + + int yaffs_EraseBlockInNAND(struct yaffs_DeviceStruct *dev, + int blockInNAND); +--- a/fs/yaffs2/yaffs_packedtags1.c ++++ b/fs/yaffs2/yaffs_packedtags1.c +@@ -14,7 +14,7 @@ + #include "yaffs_packedtags1.h" + #include "yportenv.h" + +-void yaffs_PackTags1(yaffs_PackedTags1 * pt, const yaffs_ExtendedTags * t) ++void yaffs_PackTags1(yaffs_PackedTags1 *pt, const yaffs_ExtendedTags *t) + { + pt->chunkId = t->chunkId; + pt->serialNumber = t->serialNumber; +@@ -27,7 +27,7 @@ void yaffs_PackTags1(yaffs_PackedTags1 * + + } + +-void yaffs_UnpackTags1(yaffs_ExtendedTags * t, const yaffs_PackedTags1 * pt) ++void yaffs_UnpackTags1(yaffs_ExtendedTags *t, const yaffs_PackedTags1 *pt) + { + static const __u8 allFF[] = + { 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, +@@ -35,9 +35,8 @@ void yaffs_UnpackTags1(yaffs_ExtendedTag + + if (memcmp(allFF, pt, sizeof(yaffs_PackedTags1))) { + t->blockBad = 0; +- if (pt->shouldBeFF != 0xFFFFFFFF) { ++ if (pt->shouldBeFF != 0xFFFFFFFF) + t->blockBad = 1; +- } + t->chunkUsed = 1; + t->objectId = pt->objectId; + t->chunkId = pt->chunkId; +@@ -47,6 +46,5 @@ void yaffs_UnpackTags1(yaffs_ExtendedTag + t->serialNumber = pt->serialNumber; + } else { + memset(t, 0, sizeof(yaffs_ExtendedTags)); +- + } + } +--- a/fs/yaffs2/yaffs_packedtags1.h ++++ b/fs/yaffs2/yaffs_packedtags1.h +@@ -32,6 +32,6 @@ typedef struct { + + } yaffs_PackedTags1; + +-void yaffs_PackTags1(yaffs_PackedTags1 * pt, const yaffs_ExtendedTags * t); +-void yaffs_UnpackTags1(yaffs_ExtendedTags * t, const yaffs_PackedTags1 * pt); ++void yaffs_PackTags1(yaffs_PackedTags1 *pt, const yaffs_ExtendedTags *t); ++void yaffs_UnpackTags1(yaffs_ExtendedTags *t, const yaffs_PackedTags1 *pt); + #endif +--- a/fs/yaffs2/yaffs_packedtags2.c ++++ b/fs/yaffs2/yaffs_packedtags2.c +@@ -37,60 +37,68 @@ + #define EXTRA_OBJECT_TYPE_SHIFT (28) + #define EXTRA_OBJECT_TYPE_MASK ((0x0F) << EXTRA_OBJECT_TYPE_SHIFT) + +-static void yaffs_DumpPackedTags2(const yaffs_PackedTags2 * pt) ++ ++static void yaffs_DumpPackedTags2TagsPart(const yaffs_PackedTags2TagsPart *ptt) + { + T(YAFFS_TRACE_MTD, + (TSTR("packed tags obj %d chunk %d byte %d seq %d" TENDSTR), +- pt->t.objectId, pt->t.chunkId, pt->t.byteCount, +- pt->t.sequenceNumber)); ++ ptt->objectId, ptt->chunkId, ptt->byteCount, ++ ptt->sequenceNumber)); ++} ++static void yaffs_DumpPackedTags2(const yaffs_PackedTags2 *pt) ++{ ++ yaffs_DumpPackedTags2TagsPart(&pt->t); + } + +-static void yaffs_DumpTags2(const yaffs_ExtendedTags * t) ++static void yaffs_DumpTags2(const yaffs_ExtendedTags *t) + { + T(YAFFS_TRACE_MTD, + (TSTR +- ("ext.tags eccres %d blkbad %d chused %d obj %d chunk%d byte " +- "%d del %d ser %d seq %d" ++ ("ext.tags eccres %d blkbad %d chused %d obj %d chunk%d byte %d del %d ser %d seq %d" + TENDSTR), t->eccResult, t->blockBad, t->chunkUsed, t->objectId, + t->chunkId, t->byteCount, t->chunkDeleted, t->serialNumber, + t->sequenceNumber)); + + } + +-void yaffs_PackTags2(yaffs_PackedTags2 * pt, const yaffs_ExtendedTags * t) ++void yaffs_PackTags2TagsPart(yaffs_PackedTags2TagsPart *ptt, ++ const yaffs_ExtendedTags *t) + { +- pt->t.chunkId = t->chunkId; +- pt->t.sequenceNumber = t->sequenceNumber; +- pt->t.byteCount = t->byteCount; +- pt->t.objectId = t->objectId; ++ ptt->chunkId = t->chunkId; ++ ptt->sequenceNumber = t->sequenceNumber; ++ ptt->byteCount = t->byteCount; ++ ptt->objectId = t->objectId; + + if (t->chunkId == 0 && t->extraHeaderInfoAvailable) { + /* Store the extra header info instead */ + /* We save the parent object in the chunkId */ +- pt->t.chunkId = EXTRA_HEADER_INFO_FLAG ++ ptt->chunkId = EXTRA_HEADER_INFO_FLAG + | t->extraParentObjectId; +- if (t->extraIsShrinkHeader) { +- pt->t.chunkId |= EXTRA_SHRINK_FLAG; +- } +- if (t->extraShadows) { +- pt->t.chunkId |= EXTRA_SHADOWS_FLAG; +- } ++ if (t->extraIsShrinkHeader) ++ ptt->chunkId |= EXTRA_SHRINK_FLAG; ++ if (t->extraShadows) ++ ptt->chunkId |= EXTRA_SHADOWS_FLAG; + +- pt->t.objectId &= ~EXTRA_OBJECT_TYPE_MASK; +- pt->t.objectId |= ++ ptt->objectId &= ~EXTRA_OBJECT_TYPE_MASK; ++ ptt->objectId |= + (t->extraObjectType << EXTRA_OBJECT_TYPE_SHIFT); + +- if (t->extraObjectType == YAFFS_OBJECT_TYPE_HARDLINK) { +- pt->t.byteCount = t->extraEquivalentObjectId; +- } else if (t->extraObjectType == YAFFS_OBJECT_TYPE_FILE) { +- pt->t.byteCount = t->extraFileLength; +- } else { +- pt->t.byteCount = 0; +- } ++ if (t->extraObjectType == YAFFS_OBJECT_TYPE_HARDLINK) ++ ptt->byteCount = t->extraEquivalentObjectId; ++ else if (t->extraObjectType == YAFFS_OBJECT_TYPE_FILE) ++ ptt->byteCount = t->extraFileLength; ++ else ++ ptt->byteCount = 0; + } + +- yaffs_DumpPackedTags2(pt); ++ yaffs_DumpPackedTags2TagsPart(ptt); + yaffs_DumpTags2(t); ++} ++ ++ ++void yaffs_PackTags2(yaffs_PackedTags2 *pt, const yaffs_ExtendedTags *t) ++{ ++ yaffs_PackTags2TagsPart(&pt->t, t); + + #ifndef YAFFS_IGNORE_TAGS_ECC + { +@@ -101,82 +109,98 @@ void yaffs_PackTags2(yaffs_PackedTags2 * + #endif + } + +-void yaffs_UnpackTags2(yaffs_ExtendedTags * t, yaffs_PackedTags2 * pt) ++ ++void yaffs_UnpackTags2TagsPart(yaffs_ExtendedTags *t, ++ yaffs_PackedTags2TagsPart *ptt) + { + + memset(t, 0, sizeof(yaffs_ExtendedTags)); + + yaffs_InitialiseTags(t); + +- if (pt->t.sequenceNumber != 0xFFFFFFFF) { +- /* Page is in use */ +-#ifdef YAFFS_IGNORE_TAGS_ECC +- { +- t->eccResult = YAFFS_ECC_RESULT_NO_ERROR; +- } +-#else +- { +- yaffs_ECCOther ecc; +- int result; +- yaffs_ECCCalculateOther((unsigned char *)&pt->t, +- sizeof +- (yaffs_PackedTags2TagsPart), +- &ecc); +- result = +- yaffs_ECCCorrectOther((unsigned char *)&pt->t, +- sizeof +- (yaffs_PackedTags2TagsPart), +- &pt->ecc, &ecc); +- switch(result){ +- case 0: +- t->eccResult = YAFFS_ECC_RESULT_NO_ERROR; +- break; +- case 1: +- t->eccResult = YAFFS_ECC_RESULT_FIXED; +- break; +- case -1: +- t->eccResult = YAFFS_ECC_RESULT_UNFIXED; +- break; +- default: +- t->eccResult = YAFFS_ECC_RESULT_UNKNOWN; +- } +- } +-#endif ++ if (ptt->sequenceNumber != 0xFFFFFFFF) { + t->blockBad = 0; + t->chunkUsed = 1; +- t->objectId = pt->t.objectId; +- t->chunkId = pt->t.chunkId; +- t->byteCount = pt->t.byteCount; ++ t->objectId = ptt->objectId; ++ t->chunkId = ptt->chunkId; ++ t->byteCount = ptt->byteCount; + t->chunkDeleted = 0; + t->serialNumber = 0; +- t->sequenceNumber = pt->t.sequenceNumber; ++ t->sequenceNumber = ptt->sequenceNumber; + + /* Do extra header info stuff */ + +- if (pt->t.chunkId & EXTRA_HEADER_INFO_FLAG) { ++ if (ptt->chunkId & EXTRA_HEADER_INFO_FLAG) { + t->chunkId = 0; + t->byteCount = 0; + + t->extraHeaderInfoAvailable = 1; + t->extraParentObjectId = +- pt->t.chunkId & (~(ALL_EXTRA_FLAGS)); ++ ptt->chunkId & (~(ALL_EXTRA_FLAGS)); + t->extraIsShrinkHeader = +- (pt->t.chunkId & EXTRA_SHRINK_FLAG) ? 1 : 0; ++ (ptt->chunkId & EXTRA_SHRINK_FLAG) ? 1 : 0; + t->extraShadows = +- (pt->t.chunkId & EXTRA_SHADOWS_FLAG) ? 1 : 0; ++ (ptt->chunkId & EXTRA_SHADOWS_FLAG) ? 1 : 0; + t->extraObjectType = +- pt->t.objectId >> EXTRA_OBJECT_TYPE_SHIFT; ++ ptt->objectId >> EXTRA_OBJECT_TYPE_SHIFT; + t->objectId &= ~EXTRA_OBJECT_TYPE_MASK; + +- if (t->extraObjectType == YAFFS_OBJECT_TYPE_HARDLINK) { +- t->extraEquivalentObjectId = pt->t.byteCount; +- } else { +- t->extraFileLength = pt->t.byteCount; ++ if (t->extraObjectType == YAFFS_OBJECT_TYPE_HARDLINK) ++ t->extraEquivalentObjectId = ptt->byteCount; ++ else ++ t->extraFileLength = ptt->byteCount; ++ } ++ } ++ ++ yaffs_DumpPackedTags2TagsPart(ptt); ++ yaffs_DumpTags2(t); ++ ++} ++ ++ ++void yaffs_UnpackTags2(yaffs_ExtendedTags *t, yaffs_PackedTags2 *pt) ++{ ++ ++ yaffs_ECCResult eccResult = YAFFS_ECC_RESULT_NO_ERROR; ++ ++ if (pt->t.sequenceNumber != 0xFFFFFFFF) { ++ /* Page is in use */ ++#ifndef YAFFS_IGNORE_TAGS_ECC ++ { ++ yaffs_ECCOther ecc; ++ int result; ++ yaffs_ECCCalculateOther((unsigned char *)&pt->t, ++ sizeof ++ (yaffs_PackedTags2TagsPart), ++ &ecc); ++ result = ++ yaffs_ECCCorrectOther((unsigned char *)&pt->t, ++ sizeof ++ (yaffs_PackedTags2TagsPart), ++ &pt->ecc, &ecc); ++ switch (result) { ++ case 0: ++ eccResult = YAFFS_ECC_RESULT_NO_ERROR; ++ break; ++ case 1: ++ eccResult = YAFFS_ECC_RESULT_FIXED; ++ break; ++ case -1: ++ eccResult = YAFFS_ECC_RESULT_UNFIXED; ++ break; ++ default: ++ eccResult = YAFFS_ECC_RESULT_UNKNOWN; + } + } ++#endif + } + ++ yaffs_UnpackTags2TagsPart(t, &pt->t); ++ ++ t->eccResult = eccResult; ++ + yaffs_DumpPackedTags2(pt); + yaffs_DumpTags2(t); + + } ++ +--- a/fs/yaffs2/yaffs_packedtags2.h ++++ b/fs/yaffs2/yaffs_packedtags2.h +@@ -33,6 +33,11 @@ typedef struct { + yaffs_ECCOther ecc; + } yaffs_PackedTags2; + +-void yaffs_PackTags2(yaffs_PackedTags2 * pt, const yaffs_ExtendedTags * t); +-void yaffs_UnpackTags2(yaffs_ExtendedTags * t, yaffs_PackedTags2 * pt); ++/* Full packed tags with ECC, used for oob tags */ ++void yaffs_PackTags2(yaffs_PackedTags2 *pt, const yaffs_ExtendedTags *t); ++void yaffs_UnpackTags2(yaffs_ExtendedTags *t, yaffs_PackedTags2 *pt); ++ ++/* Only the tags part (no ECC for use with inband tags */ ++void yaffs_PackTags2TagsPart(yaffs_PackedTags2TagsPart *pt, const yaffs_ExtendedTags *t); ++void yaffs_UnpackTags2TagsPart(yaffs_ExtendedTags *t, yaffs_PackedTags2TagsPart *pt); + #endif +--- a/fs/yaffs2/yaffs_qsort.c ++++ b/fs/yaffs2/yaffs_qsort.c +@@ -28,12 +28,12 @@ + */ + + #include "yportenv.h" +-//#include ++/* #include */ + + /* + * Qsort routine from Bentley & McIlroy's "Engineering a Sort Function". + */ +-#define swapcode(TYPE, parmi, parmj, n) { \ ++#define swapcode(TYPE, parmi, parmj, n) do { \ + long i = (n) / sizeof (TYPE); \ + register TYPE *pi = (TYPE *) (parmi); \ + register TYPE *pj = (TYPE *) (parmj); \ +@@ -41,28 +41,29 @@ + register TYPE t = *pi; \ + *pi++ = *pj; \ + *pj++ = t; \ +- } while (--i > 0); \ +-} ++ } while (--i > 0); \ ++} while (0) + + #define SWAPINIT(a, es) swaptype = ((char *)a - (char *)0) % sizeof(long) || \ +- es % sizeof(long) ? 2 : es == sizeof(long)? 0 : 1; ++ es % sizeof(long) ? 2 : es == sizeof(long) ? 0 : 1; + + static __inline void + swapfunc(char *a, char *b, int n, int swaptype) + { + if (swaptype <= 1) +- swapcode(long, a, b, n) ++ swapcode(long, a, b, n); + else +- swapcode(char, a, b, n) ++ swapcode(char, a, b, n); + } + +-#define swap(a, b) \ ++#define yswap(a, b) do { \ + if (swaptype == 0) { \ + long t = *(long *)(a); \ + *(long *)(a) = *(long *)(b); \ + *(long *)(b) = t; \ + } else \ +- swapfunc(a, b, es, swaptype) ++ swapfunc(a, b, es, swaptype); \ ++} while (0) + + #define vecswap(a, b, n) if ((n) > 0) swapfunc(a, b, n, swaptype) + +@@ -70,12 +71,12 @@ static __inline char * + med3(char *a, char *b, char *c, int (*cmp)(const void *, const void *)) + { + return cmp(a, b) < 0 ? +- (cmp(b, c) < 0 ? b : (cmp(a, c) < 0 ? c : a )) +- :(cmp(b, c) > 0 ? b : (cmp(a, c) < 0 ? a : c )); ++ (cmp(b, c) < 0 ? b : (cmp(a, c) < 0 ? c : a)) ++ : (cmp(b, c) > 0 ? b : (cmp(a, c) < 0 ? a : c)); + } + + #ifndef min +-#define min(a,b) (((a) < (b)) ? (a) : (b)) ++#define min(a, b) (((a) < (b)) ? (a) : (b)) + #endif + + void +@@ -92,7 +93,7 @@ loop: SWAPINIT(a, es); + for (pm = (char *)a + es; pm < (char *) a + n * es; pm += es) + for (pl = pm; pl > (char *) a && cmp(pl - es, pl) > 0; + pl -= es) +- swap(pl, pl - es); ++ yswap(pl, pl - es); + return; + } + pm = (char *)a + (n / 2) * es; +@@ -107,7 +108,7 @@ loop: SWAPINIT(a, es); + } + pm = med3(pl, pm, pn, cmp); + } +- swap(a, pm); ++ yswap(a, pm); + pa = pb = (char *)a + es; + + pc = pd = (char *)a + (n - 1) * es; +@@ -115,7 +116,7 @@ loop: SWAPINIT(a, es); + while (pb <= pc && (r = cmp(pb, a)) <= 0) { + if (r == 0) { + swap_cnt = 1; +- swap(pa, pb); ++ yswap(pa, pb); + pa += es; + } + pb += es; +@@ -123,14 +124,14 @@ loop: SWAPINIT(a, es); + while (pb <= pc && (r = cmp(pc, a)) >= 0) { + if (r == 0) { + swap_cnt = 1; +- swap(pc, pd); ++ yswap(pc, pd); + pd -= es; + } + pc -= es; + } + if (pb > pc) + break; +- swap(pb, pc); ++ yswap(pb, pc); + swap_cnt = 1; + pb += es; + pc -= es; +@@ -139,7 +140,7 @@ loop: SWAPINIT(a, es); + for (pm = (char *) a + es; pm < (char *) a + n * es; pm += es) + for (pl = pm; pl > (char *) a && cmp(pl - es, pl) > 0; + pl -= es) +- swap(pl, pl - es); ++ yswap(pl, pl - es); + return; + } + +@@ -148,9 +149,11 @@ loop: SWAPINIT(a, es); + vecswap(a, pb - r, r); + r = min((long)(pd - pc), (long)(pn - pd - es)); + vecswap(pb, pn - r, r); +- if ((r = pb - pa) > es) ++ r = pb - pa; ++ if (r > es) + yaffs_qsort(a, r / es, es, cmp); +- if ((r = pd - pc) > es) { ++ r = pd - pc; ++ if (r > es) { + /* Iterate rather than recurse to save stack space */ + a = pn - r; + n = r / es; +--- a/fs/yaffs2/yaffs_qsort.h ++++ b/fs/yaffs2/yaffs_qsort.h +@@ -17,7 +17,7 @@ + #ifndef __YAFFS_QSORT_H__ + #define __YAFFS_QSORT_H__ + +-extern void yaffs_qsort (void *const base, size_t total_elems, size_t size, +- int (*cmp)(const void *, const void *)); ++extern void yaffs_qsort(void *const base, size_t total_elems, size_t size, ++ int (*cmp)(const void *, const void *)); + + #endif +--- a/fs/yaffs2/yaffs_tagscompat.c ++++ b/fs/yaffs2/yaffs_tagscompat.c +@@ -14,16 +14,17 @@ + #include "yaffs_guts.h" + #include "yaffs_tagscompat.h" + #include "yaffs_ecc.h" ++#include "yaffs_getblockinfo.h" + +-static void yaffs_HandleReadDataError(yaffs_Device * dev, int chunkInNAND); ++static void yaffs_HandleReadDataError(yaffs_Device *dev, int chunkInNAND); + #ifdef NOTYET +-static void yaffs_CheckWrittenBlock(yaffs_Device * dev, int chunkInNAND); +-static void yaffs_HandleWriteChunkOk(yaffs_Device * dev, int chunkInNAND, +- const __u8 * data, +- const yaffs_Spare * spare); +-static void yaffs_HandleUpdateChunk(yaffs_Device * dev, int chunkInNAND, +- const yaffs_Spare * spare); +-static void yaffs_HandleWriteChunkError(yaffs_Device * dev, int chunkInNAND); ++static void yaffs_CheckWrittenBlock(yaffs_Device *dev, int chunkInNAND); ++static void yaffs_HandleWriteChunkOk(yaffs_Device *dev, int chunkInNAND, ++ const __u8 *data, ++ const yaffs_Spare *spare); ++static void yaffs_HandleUpdateChunk(yaffs_Device *dev, int chunkInNAND, ++ const yaffs_Spare *spare); ++static void yaffs_HandleWriteChunkError(yaffs_Device *dev, int chunkInNAND); + #endif + + static const char yaffs_countBitsTable[256] = { +@@ -54,13 +55,13 @@ int yaffs_CountBits(__u8 x) + + /********** Tags ECC calculations *********/ + +-void yaffs_CalcECC(const __u8 * data, yaffs_Spare * spare) ++void yaffs_CalcECC(const __u8 *data, yaffs_Spare *spare) + { + yaffs_ECCCalculate(data, spare->ecc1); + yaffs_ECCCalculate(&data[256], spare->ecc2); + } + +-void yaffs_CalcTagsECC(yaffs_Tags * tags) ++void yaffs_CalcTagsECC(yaffs_Tags *tags) + { + /* Calculate an ecc */ + +@@ -74,9 +75,8 @@ void yaffs_CalcTagsECC(yaffs_Tags * tags + for (i = 0; i < 8; i++) { + for (j = 1; j & 0xff; j <<= 1) { + bit++; +- if (b[i] & j) { ++ if (b[i] & j) + ecc ^= bit; +- } + } + } + +@@ -84,7 +84,7 @@ void yaffs_CalcTagsECC(yaffs_Tags * tags + + } + +-int yaffs_CheckECCOnTags(yaffs_Tags * tags) ++int yaffs_CheckECCOnTags(yaffs_Tags *tags) + { + unsigned ecc = tags->ecc; + +@@ -115,8 +115,8 @@ int yaffs_CheckECCOnTags(yaffs_Tags * ta + + /********** Tags **********/ + +-static void yaffs_LoadTagsIntoSpare(yaffs_Spare * sparePtr, +- yaffs_Tags * tagsPtr) ++static void yaffs_LoadTagsIntoSpare(yaffs_Spare *sparePtr, ++ yaffs_Tags *tagsPtr) + { + yaffs_TagsUnion *tu = (yaffs_TagsUnion *) tagsPtr; + +@@ -132,8 +132,8 @@ static void yaffs_LoadTagsIntoSpare(yaff + sparePtr->tagByte7 = tu->asBytes[7]; + } + +-static void yaffs_GetTagsFromSpare(yaffs_Device * dev, yaffs_Spare * sparePtr, +- yaffs_Tags * tagsPtr) ++static void yaffs_GetTagsFromSpare(yaffs_Device *dev, yaffs_Spare *sparePtr, ++ yaffs_Tags *tagsPtr) + { + yaffs_TagsUnion *tu = (yaffs_TagsUnion *) tagsPtr; + int result; +@@ -148,21 +148,20 @@ static void yaffs_GetTagsFromSpare(yaffs + tu->asBytes[7] = sparePtr->tagByte7; + + result = yaffs_CheckECCOnTags(tagsPtr); +- if (result > 0) { ++ if (result > 0) + dev->tagsEccFixed++; +- } else if (result < 0) { ++ else if (result < 0) + dev->tagsEccUnfixed++; +- } + } + +-static void yaffs_SpareInitialise(yaffs_Spare * spare) ++static void yaffs_SpareInitialise(yaffs_Spare *spare) + { + memset(spare, 0xFF, sizeof(yaffs_Spare)); + } + + static int yaffs_WriteChunkToNAND(struct yaffs_DeviceStruct *dev, +- int chunkInNAND, const __u8 * data, +- yaffs_Spare * spare) ++ int chunkInNAND, const __u8 *data, ++ yaffs_Spare *spare) + { + if (chunkInNAND < dev->startBlock * dev->nChunksPerBlock) { + T(YAFFS_TRACE_ERROR, +@@ -177,9 +176,9 @@ static int yaffs_WriteChunkToNAND(struct + + static int yaffs_ReadChunkFromNAND(struct yaffs_DeviceStruct *dev, + int chunkInNAND, +- __u8 * data, +- yaffs_Spare * spare, +- yaffs_ECCResult * eccResult, ++ __u8 *data, ++ yaffs_Spare *spare, ++ yaffs_ECCResult *eccResult, + int doErrorCorrection) + { + int retVal; +@@ -252,9 +251,11 @@ static int yaffs_ReadChunkFromNAND(struc + /* Must allocate enough memory for spare+2*sizeof(int) */ + /* for ecc results from device. */ + struct yaffs_NANDSpare nspare; +- retVal = +- dev->readChunkFromNAND(dev, chunkInNAND, data, +- (yaffs_Spare *) & nspare); ++ ++ memset(&nspare, 0, sizeof(nspare)); ++ ++ retVal = dev->readChunkFromNAND(dev, chunkInNAND, data, ++ (yaffs_Spare *) &nspare); + memcpy(spare, &nspare, sizeof(yaffs_Spare)); + if (data && doErrorCorrection) { + if (nspare.eccres1 > 0) { +@@ -302,8 +303,7 @@ static int yaffs_ReadChunkFromNAND(struc + static int yaffs_CheckChunkErased(struct yaffs_DeviceStruct *dev, + int chunkInNAND) + { +- +- static int init = 0; ++ static int init; + static __u8 cmpbuf[YAFFS_BYTES_PER_CHUNK]; + static __u8 data[YAFFS_BYTES_PER_CHUNK]; + /* Might as well always allocate the larger size for */ +@@ -331,12 +331,12 @@ static int yaffs_CheckChunkErased(struct + * Functions for robustisizing + */ + +-static void yaffs_HandleReadDataError(yaffs_Device * dev, int chunkInNAND) ++static void yaffs_HandleReadDataError(yaffs_Device *dev, int chunkInNAND) + { + int blockInNAND = chunkInNAND / dev->nChunksPerBlock; + + /* Mark the block for retirement */ +- yaffs_GetBlockInfo(dev, blockInNAND)->needsRetiring = 1; ++ yaffs_GetBlockInfo(dev, blockInNAND + dev->blockOffset)->needsRetiring = 1; + T(YAFFS_TRACE_ERROR | YAFFS_TRACE_BAD_BLOCKS, + (TSTR("**>>Block %d marked for retirement" TENDSTR), blockInNAND)); + +@@ -348,22 +348,22 @@ static void yaffs_HandleReadDataError(ya + } + + #ifdef NOTYET +-static void yaffs_CheckWrittenBlock(yaffs_Device * dev, int chunkInNAND) ++static void yaffs_CheckWrittenBlock(yaffs_Device *dev, int chunkInNAND) + { + } + +-static void yaffs_HandleWriteChunkOk(yaffs_Device * dev, int chunkInNAND, +- const __u8 * data, +- const yaffs_Spare * spare) ++static void yaffs_HandleWriteChunkOk(yaffs_Device *dev, int chunkInNAND, ++ const __u8 *data, ++ const yaffs_Spare *spare) + { + } + +-static void yaffs_HandleUpdateChunk(yaffs_Device * dev, int chunkInNAND, +- const yaffs_Spare * spare) ++static void yaffs_HandleUpdateChunk(yaffs_Device *dev, int chunkInNAND, ++ const yaffs_Spare *spare) + { + } + +-static void yaffs_HandleWriteChunkError(yaffs_Device * dev, int chunkInNAND) ++static void yaffs_HandleWriteChunkError(yaffs_Device *dev, int chunkInNAND) + { + int blockInNAND = chunkInNAND / dev->nChunksPerBlock; + +@@ -373,8 +373,8 @@ static void yaffs_HandleWriteChunkError( + yaffs_DeleteChunk(dev, chunkInNAND, 1, __LINE__); + } + +-static int yaffs_VerifyCompare(const __u8 * d0, const __u8 * d1, +- const yaffs_Spare * s0, const yaffs_Spare * s1) ++static int yaffs_VerifyCompare(const __u8 *d0, const __u8 *d1, ++ const yaffs_Spare *s0, const yaffs_Spare *s1) + { + + if (memcmp(d0, d1, YAFFS_BYTES_PER_CHUNK) != 0 || +@@ -398,28 +398,35 @@ static int yaffs_VerifyCompare(const __u + } + #endif /* NOTYET */ + +-int yaffs_TagsCompatabilityWriteChunkWithTagsToNAND(yaffs_Device * dev, +- int chunkInNAND, +- const __u8 * data, +- const yaffs_ExtendedTags * +- eTags) ++int yaffs_TagsCompatabilityWriteChunkWithTagsToNAND(yaffs_Device *dev, ++ int chunkInNAND, ++ const __u8 *data, ++ const yaffs_ExtendedTags *eTags) + { + yaffs_Spare spare; + yaffs_Tags tags; + + yaffs_SpareInitialise(&spare); + +- if (eTags->chunkDeleted) { ++ if (eTags->chunkDeleted) + spare.pageStatus = 0; +- } else { ++ else { + tags.objectId = eTags->objectId; + tags.chunkId = eTags->chunkId; +- tags.byteCount = eTags->byteCount; ++ ++ tags.byteCountLSB = eTags->byteCount & 0x3ff; ++ ++ if (dev->nDataBytesPerChunk >= 1024) ++ tags.byteCountMSB = (eTags->byteCount >> 10) & 3; ++ else ++ tags.byteCountMSB = 3; ++ ++ + tags.serialNumber = eTags->serialNumber; + +- if (!dev->useNANDECC && data) { ++ if (!dev->useNANDECC && data) + yaffs_CalcECC(data, &spare); +- } ++ + yaffs_LoadTagsIntoSpare(&spare, &tags); + + } +@@ -427,15 +434,15 @@ int yaffs_TagsCompatabilityWriteChunkWit + return yaffs_WriteChunkToNAND(dev, chunkInNAND, data, &spare); + } + +-int yaffs_TagsCompatabilityReadChunkWithTagsFromNAND(yaffs_Device * dev, ++int yaffs_TagsCompatabilityReadChunkWithTagsFromNAND(yaffs_Device *dev, + int chunkInNAND, +- __u8 * data, +- yaffs_ExtendedTags * eTags) ++ __u8 *data, ++ yaffs_ExtendedTags *eTags) + { + + yaffs_Spare spare; + yaffs_Tags tags; +- yaffs_ECCResult eccResult; ++ yaffs_ECCResult eccResult = YAFFS_ECC_RESULT_UNKNOWN; + + static yaffs_Spare spareFF; + static int init; +@@ -466,7 +473,11 @@ int yaffs_TagsCompatabilityReadChunkWith + + eTags->objectId = tags.objectId; + eTags->chunkId = tags.chunkId; +- eTags->byteCount = tags.byteCount; ++ eTags->byteCount = tags.byteCountLSB; ++ ++ if (dev->nDataBytesPerChunk >= 1024) ++ eTags->byteCount |= (((unsigned) tags.byteCountMSB) << 10); ++ + eTags->serialNumber = tags.serialNumber; + } + } +@@ -497,9 +508,9 @@ int yaffs_TagsCompatabilityMarkNANDBlock + } + + int yaffs_TagsCompatabilityQueryNANDBlock(struct yaffs_DeviceStruct *dev, +- int blockNo, yaffs_BlockState * +- state, +- int *sequenceNumber) ++ int blockNo, ++ yaffs_BlockState *state, ++ __u32 *sequenceNumber) + { + + yaffs_Spare spare0, spare1; +--- a/fs/yaffs2/yaffs_tagscompat.h ++++ b/fs/yaffs2/yaffs_tagscompat.h +@@ -17,24 +17,23 @@ + #define __YAFFS_TAGSCOMPAT_H__ + + #include "yaffs_guts.h" +-int yaffs_TagsCompatabilityWriteChunkWithTagsToNAND(yaffs_Device * dev, +- int chunkInNAND, +- const __u8 * data, +- const yaffs_ExtendedTags * +- tags); +-int yaffs_TagsCompatabilityReadChunkWithTagsFromNAND(yaffs_Device * dev, +- int chunkInNAND, +- __u8 * data, +- yaffs_ExtendedTags * +- tags); ++int yaffs_TagsCompatabilityWriteChunkWithTagsToNAND(yaffs_Device *dev, ++ int chunkInNAND, ++ const __u8 *data, ++ const yaffs_ExtendedTags *tags); ++int yaffs_TagsCompatabilityReadChunkWithTagsFromNAND(yaffs_Device *dev, ++ int chunkInNAND, ++ __u8 *data, ++ yaffs_ExtendedTags *tags); + int yaffs_TagsCompatabilityMarkNANDBlockBad(struct yaffs_DeviceStruct *dev, + int blockNo); + int yaffs_TagsCompatabilityQueryNANDBlock(struct yaffs_DeviceStruct *dev, +- int blockNo, yaffs_BlockState * +- state, int *sequenceNumber); ++ int blockNo, ++ yaffs_BlockState *state, ++ __u32 *sequenceNumber); + +-void yaffs_CalcTagsECC(yaffs_Tags * tags); +-int yaffs_CheckECCOnTags(yaffs_Tags * tags); ++void yaffs_CalcTagsECC(yaffs_Tags *tags); ++int yaffs_CheckECCOnTags(yaffs_Tags *tags); + int yaffs_CountBits(__u8 byte); + + #endif +--- a/fs/yaffs2/yaffs_tagsvalidity.c ++++ b/fs/yaffs2/yaffs_tagsvalidity.c +@@ -13,14 +13,14 @@ + + #include "yaffs_tagsvalidity.h" + +-void yaffs_InitialiseTags(yaffs_ExtendedTags * tags) ++void yaffs_InitialiseTags(yaffs_ExtendedTags *tags) + { + memset(tags, 0, sizeof(yaffs_ExtendedTags)); + tags->validMarker0 = 0xAAAAAAAA; + tags->validMarker1 = 0x55555555; + } + +-int yaffs_ValidateTags(yaffs_ExtendedTags * tags) ++int yaffs_ValidateTags(yaffs_ExtendedTags *tags) + { + return (tags->validMarker0 == 0xAAAAAAAA && + tags->validMarker1 == 0x55555555); +--- a/fs/yaffs2/yaffs_tagsvalidity.h ++++ b/fs/yaffs2/yaffs_tagsvalidity.h +@@ -19,6 +19,6 @@ + + #include "yaffs_guts.h" + +-void yaffs_InitialiseTags(yaffs_ExtendedTags * tags); +-int yaffs_ValidateTags(yaffs_ExtendedTags * tags); ++void yaffs_InitialiseTags(yaffs_ExtendedTags *tags); ++int yaffs_ValidateTags(yaffs_ExtendedTags *tags); + #endif +--- a/fs/yaffs2/yportenv.h ++++ b/fs/yaffs2/yportenv.h +@@ -17,17 +17,28 @@ + #ifndef __YPORTENV_H__ + #define __YPORTENV_H__ + ++/* ++ * Define the MTD version in terms of Linux Kernel versions ++ * This allows yaffs to be used independantly of the kernel ++ * as well as with it. ++ */ ++ ++#define MTD_VERSION(a, b, c) (((a) << 16) + ((b) << 8) + (c)) ++ + #if defined CONFIG_YAFFS_WINCE + + #include "ywinceenv.h" + +-#elif defined __KERNEL__ ++#elif defined __KERNEL__ + + #include "moduleconfig.h" + + /* Linux kernel */ ++ + #include +-#if (LINUX_VERSION_CODE < KERNEL_VERSION(2,6,19)) ++#define MTD_VERSION_CODE LINUX_VERSION_CODE ++ ++#if (LINUX_VERSION_CODE < KERNEL_VERSION(2, 6, 19)) + #include + #endif + #include +@@ -40,12 +51,13 @@ + #define YCHAR char + #define YUCHAR unsigned char + #define _Y(x) x +-#define yaffs_strcpy(a,b) strcpy(a,b) +-#define yaffs_strncpy(a,b,c) strncpy(a,b,c) +-#define yaffs_strncmp(a,b,c) strncmp(a,b,c) +-#define yaffs_strlen(s) strlen(s) +-#define yaffs_sprintf sprintf +-#define yaffs_toupper(a) toupper(a) ++#define yaffs_strcat(a, b) strcat(a, b) ++#define yaffs_strcpy(a, b) strcpy(a, b) ++#define yaffs_strncpy(a, b, c) strncpy(a, b, c) ++#define yaffs_strncmp(a, b, c) strncmp(a, b, c) ++#define yaffs_strlen(s) strlen(s) ++#define yaffs_sprintf sprintf ++#define yaffs_toupper(a) toupper(a) + + #define Y_INLINE inline + +@@ -53,19 +65,19 @@ + #define YAFFS_LOSTNFOUND_PREFIX "obj" + + /* #define YPRINTF(x) printk x */ +-#define YMALLOC(x) kmalloc(x,GFP_KERNEL) ++#define YMALLOC(x) kmalloc(x, GFP_NOFS) + #define YFREE(x) kfree(x) + #define YMALLOC_ALT(x) vmalloc(x) + #define YFREE_ALT(x) vfree(x) + #define YMALLOC_DMA(x) YMALLOC(x) + +-// KR - added for use in scan so processes aren't blocked indefinitely. ++/* KR - added for use in scan so processes aren't blocked indefinitely. */ + #define YYIELD() schedule() + + #define YAFFS_ROOT_MODE 0666 + #define YAFFS_LOSTNFOUND_MODE 0666 + +-#if (LINUX_VERSION_CODE > KERNEL_VERSION(2,5,0)) ++#if (LINUX_VERSION_CODE > KERNEL_VERSION(2, 5, 0)) + #define Y_CURRENT_TIME CURRENT_TIME.tv_sec + #define Y_TIME_CONVERT(x) (x).tv_sec + #else +@@ -73,11 +85,12 @@ + #define Y_TIME_CONVERT(x) (x) + #endif + +-#define yaffs_SumCompare(x,y) ((x) == (y)) +-#define yaffs_strcmp(a,b) strcmp(a,b) ++#define yaffs_SumCompare(x, y) ((x) == (y)) ++#define yaffs_strcmp(a, b) strcmp(a, b) + + #define TENDSTR "\n" + #define TSTR(x) KERN_WARNING x ++#define TCONT(x) x + #define TOUT(p) printk p + + #define yaffs_trace(mask, fmt, args...) \ +@@ -90,6 +103,8 @@ + + #elif defined CONFIG_YAFFS_DIRECT + ++#define MTD_VERSION_CODE MTD_VERSION(2, 6, 22) ++ + /* Direct interface */ + #include "ydirectenv.h" + +@@ -111,11 +126,12 @@ + #define YCHAR char + #define YUCHAR unsigned char + #define _Y(x) x +-#define yaffs_strcpy(a,b) strcpy(a,b) +-#define yaffs_strncpy(a,b,c) strncpy(a,b,c) +-#define yaffs_strlen(s) strlen(s) +-#define yaffs_sprintf sprintf +-#define yaffs_toupper(a) toupper(a) ++#define yaffs_strcat(a, b) strcat(a, b) ++#define yaffs_strcpy(a, b) strcpy(a, b) ++#define yaffs_strncpy(a, b, c) strncpy(a, b, c) ++#define yaffs_strlen(s) strlen(s) ++#define yaffs_sprintf sprintf ++#define yaffs_toupper(a) toupper(a) + + #define Y_INLINE inline + +@@ -133,8 +149,8 @@ + #define YAFFS_ROOT_MODE 0666 + #define YAFFS_LOSTNFOUND_MODE 0666 + +-#define yaffs_SumCompare(x,y) ((x) == (y)) +-#define yaffs_strcmp(a,b) strcmp(a,b) ++#define yaffs_SumCompare(x, y) ((x) == (y)) ++#define yaffs_strcmp(a, b) strcmp(a, b) + + #else + /* Should have specified a configuration type */ +@@ -178,10 +194,10 @@ extern unsigned int yaffs_wr_attempts; + #define YAFFS_TRACE_ALWAYS 0xF0000000 + + +-#define T(mask,p) do{ if((mask) & (yaffs_traceMask | YAFFS_TRACE_ALWAYS)) TOUT(p);} while(0) ++#define T(mask, p) do { if ((mask) & (yaffs_traceMask | YAFFS_TRACE_ALWAYS)) TOUT(p); } while (0) + +-#ifndef CONFIG_YAFFS_WINCE +-#define YBUG() T(YAFFS_TRACE_BUG,(TSTR("==>> yaffs bug: " __FILE__ " %d" TENDSTR),__LINE__)) ++#ifndef YBUG ++#define YBUG() do {T(YAFFS_TRACE_BUG, (TSTR("==>> yaffs bug: " __FILE__ " %d" TENDSTR), __LINE__)); } while (0) + #endif + + #endif diff --git a/target/linux/generic/patches-2.6.39/502-yaffs_git_2010_10_20.patch b/target/linux/generic/patches-2.6.39/502-yaffs_git_2010_10_20.patch new file mode 100644 index 00000000000..2f4e6ef83be --- /dev/null +++ b/target/linux/generic/patches-2.6.39/502-yaffs_git_2010_10_20.patch @@ -0,0 +1,27068 @@ +--- a/fs/Kconfig ++++ b/fs/Kconfig +@@ -35,7 +35,6 @@ source "fs/gfs2/Kconfig" + source "fs/ocfs2/Kconfig" + source "fs/btrfs/Kconfig" + source "fs/nilfs2/Kconfig" +-source "fs/yaffs2/Kconfig" + + endif # BLOCK + +@@ -177,6 +176,10 @@ source "fs/hfsplus/Kconfig" + source "fs/befs/Kconfig" + source "fs/bfs/Kconfig" + source "fs/efs/Kconfig" ++ ++# Patched by YAFFS ++source "fs/yaffs2/Kconfig" ++ + source "fs/jffs2/Kconfig" + # UBIFS File system configuration + source "fs/ubifs/Kconfig" +--- a/fs/Makefile ++++ b/fs/Makefile +@@ -125,5 +125,6 @@ obj-$(CONFIG_GFS2_FS) += gfs2/ + obj-$(CONFIG_EXOFS_FS) += exofs/ + obj-$(CONFIG_CEPH_FS) += ceph/ + obj-$(CONFIG_PSTORE) += pstore/ +-obj-$(CONFIG_YAFFS_FS) += yaffs2/ + ++# Patched by YAFFS ++obj-$(CONFIG_YAFFS_FS) += yaffs2/ +--- a/fs/yaffs2/devextras.h ++++ b/fs/yaffs2/devextras.h +@@ -1,7 +1,7 @@ + /* + * YAFFS: Yet another Flash File System . A NAND-flash specific file system. + * +- * Copyright (C) 2002-2007 Aleph One Ltd. ++ * Copyright (C) 2002-2010 Aleph One Ltd. + * for Toby Churchill Ltd and Brightstar Engineering + * + * Created by Charles Manning +@@ -24,6 +24,8 @@ + #define __EXTRAS_H__ + + ++#include "yportenv.h" ++ + #if !(defined __KERNEL__) + + /* Definition of types */ +@@ -33,103 +35,6 @@ typedef unsigned __u32; + + #endif + +-/* +- * This is a simple doubly linked list implementation that matches the +- * way the Linux kernel doubly linked list implementation works. +- */ +- +-struct ylist_head { +- struct ylist_head *next; /* next in chain */ +- struct ylist_head *prev; /* previous in chain */ +-}; +- +- +-/* Initialise a static list */ +-#define YLIST_HEAD(name) \ +-struct ylist_head name = { &(name), &(name)} +- +- +- +-/* Initialise a list head to an empty list */ +-#define YINIT_LIST_HEAD(p) \ +-do { \ +- (p)->next = (p);\ +- (p)->prev = (p); \ +-} while (0) +- +- +-/* Add an element to a list */ +-static __inline__ void ylist_add(struct ylist_head *newEntry, +- struct ylist_head *list) +-{ +- struct ylist_head *listNext = list->next; +- +- list->next = newEntry; +- newEntry->prev = list; +- newEntry->next = listNext; +- listNext->prev = newEntry; +- +-} +- +-static __inline__ void ylist_add_tail(struct ylist_head *newEntry, +- struct ylist_head *list) +-{ +- struct ylist_head *listPrev = list->prev; +- +- list->prev = newEntry; +- newEntry->next = list; +- newEntry->prev = listPrev; +- listPrev->next = newEntry; +- +-} +- +- +-/* Take an element out of its current list, with or without +- * reinitialising the links.of the entry*/ +-static __inline__ void ylist_del(struct ylist_head *entry) +-{ +- struct ylist_head *listNext = entry->next; +- struct ylist_head *listPrev = entry->prev; +- +- listNext->prev = listPrev; +- listPrev->next = listNext; +- +-} +- +-static __inline__ void ylist_del_init(struct ylist_head *entry) +-{ +- ylist_del(entry); +- entry->next = entry->prev = entry; +-} +- +- +-/* Test if the list is empty */ +-static __inline__ int ylist_empty(struct ylist_head *entry) +-{ +- return (entry->next == entry); +-} +- +- +-/* ylist_entry takes a pointer to a list entry and offsets it to that +- * we can find a pointer to the object it is embedded in. +- */ +- +- +-#define ylist_entry(entry, type, member) \ +- ((type *)((char *)(entry)-(unsigned long)(&((type *)NULL)->member))) +- +- +-/* ylist_for_each and list_for_each_safe iterate over lists. +- * ylist_for_each_safe uses temporary storage to make the list delete safe +- */ +- +-#define ylist_for_each(itervar, list) \ +- for (itervar = (list)->next; itervar != (list); itervar = itervar->next) +- +-#define ylist_for_each_safe(itervar, saveVar, list) \ +- for (itervar = (list)->next, saveVar = (list)->next->next; \ +- itervar != (list); itervar = saveVar, saveVar = saveVar->next) +- + + #if !(defined __KERNEL__) + +--- a/fs/yaffs2/Kconfig ++++ b/fs/yaffs2/Kconfig +@@ -90,23 +90,15 @@ config YAFFS_AUTO_YAFFS2 + + If unsure, say Y. + +-config YAFFS_DISABLE_LAZY_LOAD +- bool "Disable lazy loading" +- depends on YAFFS_YAFFS2 ++config YAFFS_DISABLE_TAGS_ECC ++ bool "Disable YAFFS from doing ECC on tags by default" ++ depends on YAFFS_FS && YAFFS_YAFFS2 + default n + help +- "Lazy loading" defers loading file details until they are +- required. This saves mount time, but makes the first look-up +- a bit longer. +- +- Lazy loading will only happen if enabled by this option being 'n' +- and if the appropriate tags are available, else yaffs2 will +- automatically fall back to immediate loading and do the right +- thing. +- +- Lazy laoding will be required by checkpointing. +- +- Setting this to 'y' will disable lazy loading. ++ This defaults Yaffs to using its own ECC calculations on tags instead of ++ just relying on the MTD. ++ This behavior can also be overridden with tags_ecc_on and ++ tags_ecc_off mount options. + + If unsure, say N. + +@@ -154,3 +146,45 @@ config YAFFS_SHORT_NAMES_IN_RAM + but makes look-ups faster. + + If unsure, say Y. ++ ++config YAFFS_EMPTY_LOST_AND_FOUND ++ bool "Empty lost and found on boot" ++ depends on YAFFS_FS ++ default n ++ help ++ If this is enabled then the contents of lost and found is ++ automatically dumped at mount. ++ ++ If unsure, say N. ++ ++config YAFFS_DISABLE_BLOCK_REFRESHING ++ bool "Disable yaffs2 block refreshing" ++ depends on YAFFS_FS ++ default n ++ help ++ If this is set, then block refreshing is disabled. ++ Block refreshing infrequently refreshes the oldest block in ++ a yaffs2 file system. This mechanism helps to refresh flash to ++ mitigate against data loss. This is particularly useful for MLC. ++ ++ If unsure, say N. ++ ++config YAFFS_DISABLE_BACKGROUND ++ bool "Disable yaffs2 background processing" ++ depends on YAFFS_FS ++ default n ++ help ++ If this is set, then background processing is disabled. ++ Background processing makes many foreground activities faster. ++ ++ If unsure, say N. ++ ++config YAFFS_XATTR ++ bool "Enable yaffs2 xattr support" ++ depends on YAFFS_FS ++ default y ++ help ++ If this is set then yaffs2 will provide xattr support. ++ If unsure, say Y. ++ ++ +--- a/fs/yaffs2/Makefile ++++ b/fs/yaffs2/Makefile +@@ -4,7 +4,14 @@ + + obj-$(CONFIG_YAFFS_FS) += yaffs.o + +-yaffs-y := yaffs_ecc.o yaffs_fs.o yaffs_guts.o yaffs_checkptrw.o +-yaffs-y += yaffs_packedtags1.o yaffs_packedtags2.o yaffs_nand.o yaffs_qsort.o ++yaffs-y := yaffs_ecc.o yaffs_vfs_glue.o yaffs_guts.o yaffs_checkptrw.o ++yaffs-y += yaffs_packedtags1.o yaffs_packedtags2.o yaffs_nand.o + yaffs-y += yaffs_tagscompat.o yaffs_tagsvalidity.o + yaffs-y += yaffs_mtdif.o yaffs_mtdif1.o yaffs_mtdif2.o ++yaffs-y += yaffs_nameval.o ++yaffs-y += yaffs_allocator.o ++yaffs-y += yaffs_yaffs1.o ++yaffs-y += yaffs_yaffs2.o ++yaffs-y += yaffs_bitmap.o ++yaffs-y += yaffs_verify.o ++ +--- a/fs/yaffs2/moduleconfig.h ++++ b/fs/yaffs2/moduleconfig.h +@@ -1,7 +1,7 @@ + /* + * YAFFS: Yet another Flash File System . A NAND-flash specific file system. + * +- * Copyright (C) 2002-2007 Aleph One Ltd. ++ * Copyright (C) 2002-2010 Aleph One Ltd. + * for Toby Churchill Ltd and Brightstar Engineering + * + * Created by Martin Fouts +@@ -29,25 +29,46 @@ + /* Meaning: Yaffs does its own ECC, rather than using MTD ECC */ + /* #define CONFIG_YAFFS_DOES_ECC */ + ++/* Default: Selected */ ++/* Meaning: Yaffs does its own ECC on tags for packed tags rather than use mtd */ ++#define CONFIG_YAFFS_DOES_TAGS_ECC ++ + /* Default: Not selected */ + /* Meaning: ECC byte order is 'wrong'. Only meaningful if */ + /* CONFIG_YAFFS_DOES_ECC is set */ + /* #define CONFIG_YAFFS_ECC_WRONG_ORDER */ + +-/* Default: Selected */ +-/* Meaning: Disables testing whether chunks are erased before writing to them*/ +-#define CONFIG_YAFFS_DISABLE_CHUNK_ERASED_CHECK ++/* Default: Not selected */ ++/* Meaning: Always test whether chunks are erased before writing to them. ++ Use during mtd debugging and init. */ ++/* #define CONFIG_YAFFS_ALWAYS_CHECK_CHUNK_ERASED */ ++ ++/* Default: Not Selected */ ++/* Meaning: At mount automatically empty all files from lost and found. */ ++/* This is done to fix an old problem where rmdir was not checking for an */ ++/* empty directory. This can also be achieved with a mount option. */ ++#define CONFIG_YAFFS_EMPTY_LOST_AND_FOUND + + /* Default: Selected */ + /* Meaning: Cache short names, taking more RAM, but faster look-ups */ + #define CONFIG_YAFFS_SHORT_NAMES_IN_RAM + +-/* Default: 10 */ +-/* Meaning: set the count of blocks to reserve for checkpointing */ +-#define CONFIG_YAFFS_CHECKPOINT_RESERVED_BLOCKS 10 ++/* Default: Unselected */ ++/* Meaning: Select to disable block refreshing. */ ++/* Block Refreshing periodically rewrites the oldest block. */ ++/* #define CONFIG_DISABLE_BLOCK_REFRESHING */ ++ ++/* Default: Unselected */ ++/* Meaning: Select to disable background processing */ ++/* #define CONFIG_DISABLE_BACKGROUND */ ++ ++ ++/* Default: Selected */ ++/* Meaning: Enable XATTR support */ ++#define CONFIG_YAFFS_XATTR + + /* +-Older-style on-NAND data format has a "pageStatus" byte to record ++Older-style on-NAND data format has a "page_status" byte to record + chunk/page state. This byte is zeroed when the page is discarded. + Choose this option if you have existing on-NAND data in this format + that you need to continue to support. New data written also uses the +@@ -57,7 +78,7 @@ adjusted to use the older-style format. + MTD versions in yaffs_mtdif1.c. + */ + /* Default: Not selected */ +-/* Meaning: Use older-style on-NAND data format with pageStatus byte */ ++/* Meaning: Use older-style on-NAND data format with page_status byte */ + /* #define CONFIG_YAFFS_9BYTE_TAGS */ + + #endif /* YAFFS_OUT_OF_TREE */ +--- /dev/null ++++ b/fs/yaffs2/yaffs_allocator.c +@@ -0,0 +1,409 @@ ++/* ++ * YAFFS: Yet another Flash File System . A NAND-flash specific file system. ++ * ++ * Copyright (C) 2002-2010 Aleph One Ltd. ++ * for Toby Churchill Ltd and Brightstar Engineering ++ * ++ * Created by Charles Manning ++ * ++ * This program is free software; you can redistribute it and/or modify ++ * it under the terms of the GNU Lesser General Public License version 2.1 as ++ * published by the Free Software Foundation. ++ * ++ * Note: Only YAFFS headers are LGPL, YAFFS C code is covered by GPL. ++ */ ++ ++ ++#include "yaffs_allocator.h" ++#include "yaffs_guts.h" ++#include "yaffs_trace.h" ++#include "yportenv.h" ++ ++#ifdef CONFIG_YAFFS_YMALLOC_ALLOCATOR ++ ++void yaffs_deinit_raw_tnodes_and_objs(yaffs_dev_t *dev) ++{ ++ dev = dev; ++} ++ ++void yaffs_init_raw_tnodes_and_objs(yaffs_dev_t *dev) ++{ ++ dev = dev; ++} ++ ++yaffs_tnode_t *yaffs_alloc_raw_tnode(yaffs_dev_t *dev) ++{ ++ return (yaffs_tnode_t *)YMALLOC(dev->tnode_size); ++} ++ ++void yaffs_free_raw_tnode(yaffs_dev_t *dev, yaffs_tnode_t *tn) ++{ ++ dev = dev; ++ YFREE(tn); ++} ++ ++void yaffs_init_raw_objs(yaffs_dev_t *dev) ++{ ++ dev = dev; ++} ++ ++void yaffs_deinit_raw_objs(yaffs_dev_t *dev) ++{ ++ dev = dev; ++} ++ ++yaffs_obj_t *yaffs_alloc_raw_obj(yaffs_dev_t *dev) ++{ ++ dev = dev; ++ return (yaffs_obj_t *) YMALLOC(sizeof(yaffs_obj_t)); ++} ++ ++ ++void yaffs_free_raw_obj(yaffs_dev_t *dev, yaffs_obj_t *obj) ++{ ++ ++ dev = dev; ++ YFREE(obj); ++} ++ ++#else ++ ++struct yaffs_tnode_list { ++ struct yaffs_tnode_list *next; ++ yaffs_tnode_t *tnodes; ++}; ++ ++typedef struct yaffs_tnode_list yaffs_tnodelist_t; ++ ++struct yaffs_obj_tList_struct { ++ yaffs_obj_t *objects; ++ struct yaffs_obj_tList_struct *next; ++}; ++ ++typedef struct yaffs_obj_tList_struct yaffs_obj_tList; ++ ++ ++struct yaffs_AllocatorStruct { ++ int n_tnodesCreated; ++ yaffs_tnode_t *freeTnodes; ++ int nFreeTnodes; ++ yaffs_tnodelist_t *allocatedTnodeList; ++ ++ int n_objCreated; ++ yaffs_obj_t *freeObjects; ++ int nFreeObjects; ++ ++ yaffs_obj_tList *allocatedObjectList; ++}; ++ ++typedef struct yaffs_AllocatorStruct yaffs_Allocator; ++ ++ ++static void yaffs_deinit_raw_tnodes(yaffs_dev_t *dev) ++{ ++ ++ yaffs_Allocator *allocator = (yaffs_Allocator *)dev->allocator; ++ ++ yaffs_tnodelist_t *tmp; ++ ++ if(!allocator){ ++ YBUG(); ++ return; ++ } ++ ++ while (allocator->allocatedTnodeList) { ++ tmp = allocator->allocatedTnodeList->next; ++ ++ YFREE(allocator->allocatedTnodeList->tnodes); ++ YFREE(allocator->allocatedTnodeList); ++ allocator->allocatedTnodeList = tmp; ++ ++ } ++ ++ allocator->freeTnodes = NULL; ++ allocator->nFreeTnodes = 0; ++ allocator->n_tnodesCreated = 0; ++} ++ ++static void yaffs_init_raw_tnodes(yaffs_dev_t *dev) ++{ ++ yaffs_Allocator *allocator = dev->allocator; ++ ++ if(allocator){ ++ allocator->allocatedTnodeList = NULL; ++ allocator->freeTnodes = NULL; ++ allocator->nFreeTnodes = 0; ++ allocator->n_tnodesCreated = 0; ++ } else ++ YBUG(); ++} ++ ++static int yaffs_create_tnodes(yaffs_dev_t *dev, int n_tnodes) ++{ ++ yaffs_Allocator *allocator = (yaffs_Allocator *)dev->allocator; ++ int i; ++ yaffs_tnode_t *newTnodes; ++ __u8 *mem; ++ yaffs_tnode_t *curr; ++ yaffs_tnode_t *next; ++ yaffs_tnodelist_t *tnl; ++ ++ if(!allocator){ ++ YBUG(); ++ return YAFFS_FAIL; ++ } ++ ++ if (n_tnodes < 1) ++ return YAFFS_OK; ++ ++ ++ /* make these things */ ++ ++ newTnodes = YMALLOC(n_tnodes * dev->tnode_size); ++ mem = (__u8 *)newTnodes; ++ ++ if (!newTnodes) { ++ T(YAFFS_TRACE_ERROR, ++ (TSTR("yaffs: Could not allocate Tnodes" TENDSTR))); ++ return YAFFS_FAIL; ++ } ++ ++ /* New hookup for wide tnodes */ ++ for (i = 0; i < n_tnodes - 1; i++) { ++ curr = (yaffs_tnode_t *) &mem[i * dev->tnode_size]; ++ next = (yaffs_tnode_t *) &mem[(i+1) * dev->tnode_size]; ++ curr->internal[0] = next; ++ } ++ ++ curr = (yaffs_tnode_t *) &mem[(n_tnodes - 1) * dev->tnode_size]; ++ curr->internal[0] = allocator->freeTnodes; ++ allocator->freeTnodes = (yaffs_tnode_t *)mem; ++ ++ allocator->nFreeTnodes += n_tnodes; ++ allocator->n_tnodesCreated += n_tnodes; ++ ++ /* Now add this bunch of tnodes to a list for freeing up. ++ * NB If we can't add this to the management list it isn't fatal ++ * but it just means we can't free this bunch of tnodes later. ++ */ ++ ++ tnl = YMALLOC(sizeof(yaffs_tnodelist_t)); ++ if (!tnl) { ++ T(YAFFS_TRACE_ERROR, ++ (TSTR ++ ("yaffs: Could not add tnodes to management list" TENDSTR))); ++ return YAFFS_FAIL; ++ } else { ++ tnl->tnodes = newTnodes; ++ tnl->next = allocator->allocatedTnodeList; ++ allocator->allocatedTnodeList = tnl; ++ } ++ ++ T(YAFFS_TRACE_ALLOCATE, (TSTR("yaffs: Tnodes added" TENDSTR))); ++ ++ return YAFFS_OK; ++} ++ ++ ++yaffs_tnode_t *yaffs_alloc_raw_tnode(yaffs_dev_t *dev) ++{ ++ yaffs_Allocator *allocator = (yaffs_Allocator *)dev->allocator; ++ yaffs_tnode_t *tn = NULL; ++ ++ if(!allocator){ ++ YBUG(); ++ return NULL; ++ } ++ ++ /* If there are none left make more */ ++ if (!allocator->freeTnodes) ++ yaffs_create_tnodes(dev, YAFFS_ALLOCATION_NTNODES); ++ ++ if (allocator->freeTnodes) { ++ tn = allocator->freeTnodes; ++ allocator->freeTnodes = allocator->freeTnodes->internal[0]; ++ allocator->nFreeTnodes--; ++ } ++ ++ return tn; ++} ++ ++/* FreeTnode frees up a tnode and puts it back on the free list */ ++void yaffs_free_raw_tnode(yaffs_dev_t *dev, yaffs_tnode_t *tn) ++{ ++ yaffs_Allocator *allocator = dev->allocator; ++ ++ if(!allocator){ ++ YBUG(); ++ return; ++ } ++ ++ if (tn) { ++ tn->internal[0] = allocator->freeTnodes; ++ allocator->freeTnodes = tn; ++ allocator->nFreeTnodes++; ++ } ++ dev->checkpoint_blocks_required = 0; /* force recalculation*/ ++} ++ ++ ++ ++static void yaffs_init_raw_objs(yaffs_dev_t *dev) ++{ ++ yaffs_Allocator *allocator = dev->allocator; ++ ++ if(allocator) { ++ allocator->allocatedObjectList = NULL; ++ allocator->freeObjects = NULL; ++ allocator->nFreeObjects = 0; ++ } else ++ YBUG(); ++} ++ ++static void yaffs_deinit_raw_objs(yaffs_dev_t *dev) ++{ ++ yaffs_Allocator *allocator = dev->allocator; ++ yaffs_obj_tList *tmp; ++ ++ if(!allocator){ ++ YBUG(); ++ return; ++ } ++ ++ while (allocator->allocatedObjectList) { ++ tmp = allocator->allocatedObjectList->next; ++ YFREE(allocator->allocatedObjectList->objects); ++ YFREE(allocator->allocatedObjectList); ++ ++ allocator->allocatedObjectList = tmp; ++ } ++ ++ allocator->freeObjects = NULL; ++ allocator->nFreeObjects = 0; ++ allocator->n_objCreated = 0; ++} ++ ++ ++static int yaffs_create_free_objs(yaffs_dev_t *dev, int n_obj) ++{ ++ yaffs_Allocator *allocator = dev->allocator; ++ ++ int i; ++ yaffs_obj_t *newObjects; ++ yaffs_obj_tList *list; ++ ++ if(!allocator){ ++ YBUG(); ++ return YAFFS_FAIL; ++ } ++ ++ if (n_obj < 1) ++ return YAFFS_OK; ++ ++ /* make these things */ ++ newObjects = YMALLOC(n_obj * sizeof(yaffs_obj_t)); ++ list = YMALLOC(sizeof(yaffs_obj_tList)); ++ ++ if (!newObjects || !list) { ++ if (newObjects){ ++ YFREE(newObjects); ++ newObjects = NULL; ++ } ++ if (list){ ++ YFREE(list); ++ list = NULL; ++ } ++ T(YAFFS_TRACE_ALLOCATE, ++ (TSTR("yaffs: Could not allocate more objects" TENDSTR))); ++ return YAFFS_FAIL; ++ } ++ ++ /* Hook them into the free list */ ++ for (i = 0; i < n_obj - 1; i++) { ++ newObjects[i].siblings.next = ++ (struct ylist_head *)(&newObjects[i + 1]); ++ } ++ ++ newObjects[n_obj - 1].siblings.next = (void *)allocator->freeObjects; ++ allocator->freeObjects = newObjects; ++ allocator->nFreeObjects += n_obj; ++ allocator->n_objCreated += n_obj; ++ ++ /* Now add this bunch of Objects to a list for freeing up. */ ++ ++ list->objects = newObjects; ++ list->next = allocator->allocatedObjectList; ++ allocator->allocatedObjectList = list; ++ ++ return YAFFS_OK; ++} ++ ++yaffs_obj_t *yaffs_alloc_raw_obj(yaffs_dev_t *dev) ++{ ++ yaffs_obj_t *obj = NULL; ++ yaffs_Allocator *allocator = dev->allocator; ++ ++ if(!allocator) { ++ YBUG(); ++ return obj; ++ } ++ ++ /* If there are none left make more */ ++ if (!allocator->freeObjects) ++ yaffs_create_free_objs(dev, YAFFS_ALLOCATION_NOBJECTS); ++ ++ if (allocator->freeObjects) { ++ obj = allocator->freeObjects; ++ allocator->freeObjects = ++ (yaffs_obj_t *) (allocator->freeObjects->siblings.next); ++ allocator->nFreeObjects--; ++ } ++ ++ return obj; ++} ++ ++ ++void yaffs_free_raw_obj(yaffs_dev_t *dev, yaffs_obj_t *obj) ++{ ++ ++ yaffs_Allocator *allocator = dev->allocator; ++ ++ if(!allocator) ++ YBUG(); ++ else { ++ /* Link into the free list. */ ++ obj->siblings.next = (struct ylist_head *)(allocator->freeObjects); ++ allocator->freeObjects = obj; ++ allocator->nFreeObjects++; ++ } ++} ++ ++void yaffs_deinit_raw_tnodes_and_objs(yaffs_dev_t *dev) ++{ ++ if(dev->allocator){ ++ yaffs_deinit_raw_tnodes(dev); ++ yaffs_deinit_raw_objs(dev); ++ ++ YFREE(dev->allocator); ++ dev->allocator=NULL; ++ } else ++ YBUG(); ++} ++ ++void yaffs_init_raw_tnodes_and_objs(yaffs_dev_t *dev) ++{ ++ yaffs_Allocator *allocator; ++ ++ if(!dev->allocator){ ++ allocator = YMALLOC(sizeof(yaffs_Allocator)); ++ if(allocator){ ++ dev->allocator = allocator; ++ yaffs_init_raw_tnodes(dev); ++ yaffs_init_raw_objs(dev); ++ } ++ } else ++ YBUG(); ++} ++ ++ ++#endif +--- /dev/null ++++ b/fs/yaffs2/yaffs_allocator.h +@@ -0,0 +1,30 @@ ++/* ++ * YAFFS: Yet another Flash File System . A NAND-flash specific file system. ++ * ++ * Copyright (C) 2002-2010 Aleph One Ltd. ++ * for Toby Churchill Ltd and Brightstar Engineering ++ * ++ * Created by Charles Manning ++ * ++ * This program is free software; you can redistribute it and/or modify ++ * it under the terms of the GNU Lesser General Public License version 2.1 as ++ * published by the Free Software Foundation. ++ * ++ * Note: Only YAFFS headers are LGPL, YAFFS C code is covered by GPL. ++ */ ++ ++#ifndef __YAFFS_ALLOCATOR_H__ ++#define __YAFFS_ALLOCATOR_H__ ++ ++#include "yaffs_guts.h" ++ ++void yaffs_init_raw_tnodes_and_objs(yaffs_dev_t *dev); ++void yaffs_deinit_raw_tnodes_and_objs(yaffs_dev_t *dev); ++ ++yaffs_tnode_t *yaffs_alloc_raw_tnode(yaffs_dev_t *dev); ++void yaffs_free_raw_tnode(yaffs_dev_t *dev, yaffs_tnode_t *tn); ++ ++yaffs_obj_t *yaffs_alloc_raw_obj(yaffs_dev_t *dev); ++void yaffs_free_raw_obj(yaffs_dev_t *dev, yaffs_obj_t *obj); ++ ++#endif +--- /dev/null ++++ b/fs/yaffs2/yaffs_bitmap.c +@@ -0,0 +1,105 @@ ++/* ++ * YAFFS: Yet Another Flash File System. A NAND-flash specific file system. ++ * ++ * Copyright (C) 2002-2010 Aleph One Ltd. ++ * for Toby Churchill Ltd and Brightstar Engineering ++ * ++ * Created by Charles Manning ++ * ++ * This program is free software; you can redistribute it and/or modify ++ * it under the terms of the GNU General Public License version 2 as ++ * published by the Free Software Foundation. ++ */ ++ ++#include "yaffs_bitmap.h" ++#include "yaffs_trace.h" ++/* ++ * Chunk bitmap manipulations ++ */ ++ ++static Y_INLINE __u8 *yaffs_BlockBits(yaffs_dev_t *dev, int blk) ++{ ++ if (blk < dev->internal_start_block || blk > dev->internal_end_block) { ++ T(YAFFS_TRACE_ERROR, ++ (TSTR("**>> yaffs: BlockBits block %d is not valid" TENDSTR), ++ blk)); ++ YBUG(); ++ } ++ return dev->chunk_bits + ++ (dev->chunk_bit_stride * (blk - dev->internal_start_block)); ++} ++ ++void yaffs_verify_chunk_bit_id(yaffs_dev_t *dev, int blk, int chunk) ++{ ++ if (blk < dev->internal_start_block || blk > dev->internal_end_block || ++ chunk < 0 || chunk >= dev->param.chunks_per_block) { ++ T(YAFFS_TRACE_ERROR, ++ (TSTR("**>> yaffs: Chunk Id (%d:%d) invalid"TENDSTR), ++ blk, chunk)); ++ YBUG(); ++ } ++} ++ ++void yaffs_clear_chunk_bits(yaffs_dev_t *dev, int blk) ++{ ++ __u8 *blkBits = yaffs_BlockBits(dev, blk); ++ ++ memset(blkBits, 0, dev->chunk_bit_stride); ++} ++ ++void yaffs_clear_chunk_bit(yaffs_dev_t *dev, int blk, int chunk) ++{ ++ __u8 *blkBits = yaffs_BlockBits(dev, blk); ++ ++ yaffs_verify_chunk_bit_id(dev, blk, chunk); ++ ++ blkBits[chunk / 8] &= ~(1 << (chunk & 7)); ++} ++ ++void yaffs_set_chunk_bit(yaffs_dev_t *dev, int blk, int chunk) ++{ ++ __u8 *blkBits = yaffs_BlockBits(dev, blk); ++ ++ yaffs_verify_chunk_bit_id(dev, blk, chunk); ++ ++ blkBits[chunk / 8] |= (1 << (chunk & 7)); ++} ++ ++int yaffs_check_chunk_bit(yaffs_dev_t *dev, int blk, int chunk) ++{ ++ __u8 *blkBits = yaffs_BlockBits(dev, blk); ++ yaffs_verify_chunk_bit_id(dev, blk, chunk); ++ ++ return (blkBits[chunk / 8] & (1 << (chunk & 7))) ? 1 : 0; ++} ++ ++int yaffs_still_some_chunks(yaffs_dev_t *dev, int blk) ++{ ++ __u8 *blkBits = yaffs_BlockBits(dev, blk); ++ int i; ++ for (i = 0; i < dev->chunk_bit_stride; i++) { ++ if (*blkBits) ++ return 1; ++ blkBits++; ++ } ++ return 0; ++} ++ ++int yaffs_count_chunk_bits(yaffs_dev_t *dev, int blk) ++{ ++ __u8 *blkBits = yaffs_BlockBits(dev, blk); ++ int i; ++ int n = 0; ++ for (i = 0; i < dev->chunk_bit_stride; i++) { ++ __u8 x = *blkBits; ++ while (x) { ++ if (x & 1) ++ n++; ++ x >>= 1; ++ } ++ ++ blkBits++; ++ } ++ return n; ++} ++ +--- /dev/null ++++ b/fs/yaffs2/yaffs_bitmap.h +@@ -0,0 +1,31 @@ ++/* ++ * YAFFS: Yet Another Flash File System. A NAND-flash specific file system. ++ * ++ * Copyright (C) 2002-2010 Aleph One Ltd. ++ * for Toby Churchill Ltd and Brightstar Engineering ++ * ++ * Created by Charles Manning ++ * ++ * This program is free software; you can redistribute it and/or modify ++ * it under the terms of the GNU General Public License version 2 as ++ * published by the Free Software Foundation. ++ */ ++ ++/* ++ * Chunk bitmap manipulations ++ */ ++ ++#ifndef __YAFFS_BITMAP_H__ ++#define __YAFFS_BITMAP_H__ ++ ++#include "yaffs_guts.h" ++ ++void yaffs_verify_chunk_bit_id(yaffs_dev_t *dev, int blk, int chunk); ++void yaffs_clear_chunk_bits(yaffs_dev_t *dev, int blk); ++void yaffs_clear_chunk_bit(yaffs_dev_t *dev, int blk, int chunk); ++void yaffs_set_chunk_bit(yaffs_dev_t *dev, int blk, int chunk); ++int yaffs_check_chunk_bit(yaffs_dev_t *dev, int blk, int chunk); ++int yaffs_still_some_chunks(yaffs_dev_t *dev, int blk); ++int yaffs_count_chunk_bits(yaffs_dev_t *dev, int blk); ++ ++#endif +--- a/fs/yaffs2/yaffs_checkptrw.c ++++ b/fs/yaffs2/yaffs_checkptrw.c +@@ -1,7 +1,7 @@ + /* + * YAFFS: Yet Another Flash File System. A NAND-flash specific file system. + * +- * Copyright (C) 2002-2007 Aleph One Ltd. ++ * Copyright (C) 2002-2010 Aleph One Ltd. + * for Toby Churchill Ltd and Brightstar Engineering + * + * Created by Charles Manning +@@ -11,16 +11,12 @@ + * published by the Free Software Foundation. + */ + +-const char *yaffs_checkptrw_c_version = +- "$Id: yaffs_checkptrw.c,v 1.18 2009-03-06 17:20:49 wookey Exp $"; +- +- + #include "yaffs_checkptrw.h" + #include "yaffs_getblockinfo.h" + +-static int yaffs_CheckpointSpaceOk(yaffs_Device *dev) ++static int yaffs2_checkpt_space_ok(yaffs_dev_t *dev) + { +- int blocksAvailable = dev->nErasedBlocks - dev->nReservedBlocks; ++ int blocksAvailable = dev->n_erased_blocks - dev->param.n_reserved_blocks; + + T(YAFFS_TRACE_CHECKPOINT, + (TSTR("checkpt blocks available = %d" TENDSTR), +@@ -30,53 +26,56 @@ static int yaffs_CheckpointSpaceOk(yaffs + } + + +-static int yaffs_CheckpointErase(yaffs_Device *dev) ++static int yaffs_checkpt_erase(yaffs_dev_t *dev) + { + int i; + +- if (!dev->eraseBlockInNAND) ++ if (!dev->param.erase_fn) + return 0; + T(YAFFS_TRACE_CHECKPOINT, (TSTR("checking blocks %d to %d"TENDSTR), +- dev->internalStartBlock, dev->internalEndBlock)); ++ dev->internal_start_block, dev->internal_end_block)); + +- for (i = dev->internalStartBlock; i <= dev->internalEndBlock; i++) { +- yaffs_BlockInfo *bi = yaffs_GetBlockInfo(dev, i); +- if (bi->blockState == YAFFS_BLOCK_STATE_CHECKPOINT) { ++ for (i = dev->internal_start_block; i <= dev->internal_end_block; i++) { ++ yaffs_block_info_t *bi = yaffs_get_block_info(dev, i); ++ if (bi->block_state == YAFFS_BLOCK_STATE_CHECKPOINT) { + T(YAFFS_TRACE_CHECKPOINT, (TSTR("erasing checkpt block %d"TENDSTR), i)); +- if (dev->eraseBlockInNAND(dev, i - dev->blockOffset /* realign */)) { +- bi->blockState = YAFFS_BLOCK_STATE_EMPTY; +- dev->nErasedBlocks++; +- dev->nFreeChunks += dev->nChunksPerBlock; ++ ++ dev->n_erasures++; ++ ++ if (dev->param.erase_fn(dev, i - dev->block_offset /* realign */)) { ++ bi->block_state = YAFFS_BLOCK_STATE_EMPTY; ++ dev->n_erased_blocks++; ++ dev->n_free_chunks += dev->param.chunks_per_block; + } else { +- dev->markNANDBlockBad(dev, i); +- bi->blockState = YAFFS_BLOCK_STATE_DEAD; ++ dev->param.bad_block_fn(dev, i); ++ bi->block_state = YAFFS_BLOCK_STATE_DEAD; + } + } + } + +- dev->blocksInCheckpoint = 0; ++ dev->blocks_in_checkpt = 0; + + return 1; + } + + +-static void yaffs_CheckpointFindNextErasedBlock(yaffs_Device *dev) ++static void yaffs2_checkpt_find_erased_block(yaffs_dev_t *dev) + { + int i; +- int blocksAvailable = dev->nErasedBlocks - dev->nReservedBlocks; ++ int blocksAvailable = dev->n_erased_blocks - dev->param.n_reserved_blocks; + T(YAFFS_TRACE_CHECKPOINT, + (TSTR("allocating checkpt block: erased %d reserved %d avail %d next %d "TENDSTR), +- dev->nErasedBlocks, dev->nReservedBlocks, blocksAvailable, dev->checkpointNextBlock)); ++ dev->n_erased_blocks, dev->param.n_reserved_blocks, blocksAvailable, dev->checkpt_next_block)); + +- if (dev->checkpointNextBlock >= 0 && +- dev->checkpointNextBlock <= dev->internalEndBlock && ++ if (dev->checkpt_next_block >= 0 && ++ dev->checkpt_next_block <= dev->internal_end_block && + blocksAvailable > 0) { + +- for (i = dev->checkpointNextBlock; i <= dev->internalEndBlock; i++) { +- yaffs_BlockInfo *bi = yaffs_GetBlockInfo(dev, i); +- if (bi->blockState == YAFFS_BLOCK_STATE_EMPTY) { +- dev->checkpointNextBlock = i + 1; +- dev->checkpointCurrentBlock = i; ++ for (i = dev->checkpt_next_block; i <= dev->internal_end_block; i++) { ++ yaffs_block_info_t *bi = yaffs_get_block_info(dev, i); ++ if (bi->block_state == YAFFS_BLOCK_STATE_EMPTY) { ++ dev->checkpt_next_block = i + 1; ++ dev->checkpt_cur_block = i; + T(YAFFS_TRACE_CHECKPOINT, (TSTR("allocating checkpt block %d"TENDSTR), i)); + return; + } +@@ -84,34 +83,34 @@ static void yaffs_CheckpointFindNextEras + } + T(YAFFS_TRACE_CHECKPOINT, (TSTR("out of checkpt blocks"TENDSTR))); + +- dev->checkpointNextBlock = -1; +- dev->checkpointCurrentBlock = -1; ++ dev->checkpt_next_block = -1; ++ dev->checkpt_cur_block = -1; + } + +-static void yaffs_CheckpointFindNextCheckpointBlock(yaffs_Device *dev) ++static void yaffs2_checkpt_find_block(yaffs_dev_t *dev) + { + int i; +- yaffs_ExtendedTags tags; ++ yaffs_ext_tags tags; + + T(YAFFS_TRACE_CHECKPOINT, (TSTR("find next checkpt block: start: blocks %d next %d" TENDSTR), +- dev->blocksInCheckpoint, dev->checkpointNextBlock)); ++ dev->blocks_in_checkpt, dev->checkpt_next_block)); + +- if (dev->blocksInCheckpoint < dev->checkpointMaxBlocks) +- for (i = dev->checkpointNextBlock; i <= dev->internalEndBlock; i++) { +- int chunk = i * dev->nChunksPerBlock; +- int realignedChunk = chunk - dev->chunkOffset; ++ if (dev->blocks_in_checkpt < dev->checkpt_max_blocks) ++ for (i = dev->checkpt_next_block; i <= dev->internal_end_block; i++) { ++ int chunk = i * dev->param.chunks_per_block; ++ int realignedChunk = chunk - dev->chunk_offset; + +- dev->readChunkWithTagsFromNAND(dev, realignedChunk, ++ dev->param.read_chunk_tags_fn(dev, realignedChunk, + NULL, &tags); + T(YAFFS_TRACE_CHECKPOINT, (TSTR("find next checkpt block: search: block %d oid %d seq %d eccr %d" TENDSTR), +- i, tags.objectId, tags.sequenceNumber, tags.eccResult)); ++ i, tags.obj_id, tags.seq_number, tags.ecc_result)); + +- if (tags.sequenceNumber == YAFFS_SEQUENCE_CHECKPOINT_DATA) { ++ if (tags.seq_number == YAFFS_SEQUENCE_CHECKPOINT_DATA) { + /* Right kind of block */ +- dev->checkpointNextBlock = tags.objectId; +- dev->checkpointCurrentBlock = i; +- dev->checkpointBlockList[dev->blocksInCheckpoint] = i; +- dev->blocksInCheckpoint++; ++ dev->checkpt_next_block = tags.obj_id; ++ dev->checkpt_cur_block = i; ++ dev->checkpt_block_list[dev->blocks_in_checkpt] = i; ++ dev->blocks_in_checkpt++; + T(YAFFS_TRACE_CHECKPOINT, (TSTR("found checkpt block %d"TENDSTR), i)); + return; + } +@@ -119,122 +118,127 @@ static void yaffs_CheckpointFindNextChec + + T(YAFFS_TRACE_CHECKPOINT, (TSTR("found no more checkpt blocks"TENDSTR))); + +- dev->checkpointNextBlock = -1; +- dev->checkpointCurrentBlock = -1; ++ dev->checkpt_next_block = -1; ++ dev->checkpt_cur_block = -1; + } + + +-int yaffs_CheckpointOpen(yaffs_Device *dev, int forWriting) ++int yaffs2_checkpt_open(yaffs_dev_t *dev, int forWriting) + { + ++ ++ dev->checkpt_open_write = forWriting; ++ + /* Got the functions we need? */ +- if (!dev->writeChunkWithTagsToNAND || +- !dev->readChunkWithTagsFromNAND || +- !dev->eraseBlockInNAND || +- !dev->markNANDBlockBad) ++ if (!dev->param.write_chunk_tags_fn || ++ !dev->param.read_chunk_tags_fn || ++ !dev->param.erase_fn || ++ !dev->param.bad_block_fn) + return 0; + +- if (forWriting && !yaffs_CheckpointSpaceOk(dev)) ++ if (forWriting && !yaffs2_checkpt_space_ok(dev)) + return 0; + +- if (!dev->checkpointBuffer) +- dev->checkpointBuffer = YMALLOC_DMA(dev->totalBytesPerChunk); +- if (!dev->checkpointBuffer) ++ if (!dev->checkpt_buffer) ++ dev->checkpt_buffer = YMALLOC_DMA(dev->param.total_bytes_per_chunk); ++ if (!dev->checkpt_buffer) + return 0; + + +- dev->checkpointPageSequence = 0; +- +- dev->checkpointOpenForWrite = forWriting; +- +- dev->checkpointByteCount = 0; +- dev->checkpointSum = 0; +- dev->checkpointXor = 0; +- dev->checkpointCurrentBlock = -1; +- dev->checkpointCurrentChunk = -1; +- dev->checkpointNextBlock = dev->internalStartBlock; ++ dev->checkpt_page_seq = 0; ++ dev->checkpt_byte_count = 0; ++ dev->checkpt_sum = 0; ++ dev->checkpt_xor = 0; ++ dev->checkpt_cur_block = -1; ++ dev->checkpt_cur_chunk = -1; ++ dev->checkpt_next_block = dev->internal_start_block; + + /* Erase all the blocks in the checkpoint area */ + if (forWriting) { +- memset(dev->checkpointBuffer, 0, dev->nDataBytesPerChunk); +- dev->checkpointByteOffset = 0; +- return yaffs_CheckpointErase(dev); ++ memset(dev->checkpt_buffer, 0, dev->data_bytes_per_chunk); ++ dev->checkpt_byte_offs = 0; ++ return yaffs_checkpt_erase(dev); + } else { + int i; + /* Set to a value that will kick off a read */ +- dev->checkpointByteOffset = dev->nDataBytesPerChunk; ++ dev->checkpt_byte_offs = dev->data_bytes_per_chunk; + /* A checkpoint block list of 1 checkpoint block per 16 block is (hopefully) + * going to be way more than we need */ +- dev->blocksInCheckpoint = 0; +- dev->checkpointMaxBlocks = (dev->internalEndBlock - dev->internalStartBlock)/16 + 2; +- dev->checkpointBlockList = YMALLOC(sizeof(int) * dev->checkpointMaxBlocks); +- for (i = 0; i < dev->checkpointMaxBlocks; i++) +- dev->checkpointBlockList[i] = -1; ++ dev->blocks_in_checkpt = 0; ++ dev->checkpt_max_blocks = (dev->internal_end_block - dev->internal_start_block)/16 + 2; ++ dev->checkpt_block_list = YMALLOC(sizeof(int) * dev->checkpt_max_blocks); ++ if(!dev->checkpt_block_list) ++ return 0; ++ ++ for (i = 0; i < dev->checkpt_max_blocks; i++) ++ dev->checkpt_block_list[i] = -1; + } + + return 1; + } + +-int yaffs_GetCheckpointSum(yaffs_Device *dev, __u32 *sum) ++int yaffs2_get_checkpt_sum(yaffs_dev_t *dev, __u32 *sum) + { + __u32 compositeSum; +- compositeSum = (dev->checkpointSum << 8) | (dev->checkpointXor & 0xFF); ++ compositeSum = (dev->checkpt_sum << 8) | (dev->checkpt_xor & 0xFF); + *sum = compositeSum; + return 1; + } + +-static int yaffs_CheckpointFlushBuffer(yaffs_Device *dev) ++static int yaffs2_checkpt_flush_buffer(yaffs_dev_t *dev) + { + int chunk; + int realignedChunk; + +- yaffs_ExtendedTags tags; ++ yaffs_ext_tags tags; + +- if (dev->checkpointCurrentBlock < 0) { +- yaffs_CheckpointFindNextErasedBlock(dev); +- dev->checkpointCurrentChunk = 0; ++ if (dev->checkpt_cur_block < 0) { ++ yaffs2_checkpt_find_erased_block(dev); ++ dev->checkpt_cur_chunk = 0; + } + +- if (dev->checkpointCurrentBlock < 0) ++ if (dev->checkpt_cur_block < 0) + return 0; + +- tags.chunkDeleted = 0; +- tags.objectId = dev->checkpointNextBlock; /* Hint to next place to look */ +- tags.chunkId = dev->checkpointPageSequence + 1; +- tags.sequenceNumber = YAFFS_SEQUENCE_CHECKPOINT_DATA; +- tags.byteCount = dev->nDataBytesPerChunk; +- if (dev->checkpointCurrentChunk == 0) { ++ tags.is_deleted = 0; ++ tags.obj_id = dev->checkpt_next_block; /* Hint to next place to look */ ++ tags.chunk_id = dev->checkpt_page_seq + 1; ++ tags.seq_number = YAFFS_SEQUENCE_CHECKPOINT_DATA; ++ tags.n_bytes = dev->data_bytes_per_chunk; ++ if (dev->checkpt_cur_chunk == 0) { + /* First chunk we write for the block? Set block state to + checkpoint */ +- yaffs_BlockInfo *bi = yaffs_GetBlockInfo(dev, dev->checkpointCurrentBlock); +- bi->blockState = YAFFS_BLOCK_STATE_CHECKPOINT; +- dev->blocksInCheckpoint++; ++ yaffs_block_info_t *bi = yaffs_get_block_info(dev, dev->checkpt_cur_block); ++ bi->block_state = YAFFS_BLOCK_STATE_CHECKPOINT; ++ dev->blocks_in_checkpt++; + } + +- chunk = dev->checkpointCurrentBlock * dev->nChunksPerBlock + dev->checkpointCurrentChunk; ++ chunk = dev->checkpt_cur_block * dev->param.chunks_per_block + dev->checkpt_cur_chunk; + + + T(YAFFS_TRACE_CHECKPOINT, (TSTR("checkpoint wite buffer nand %d(%d:%d) objid %d chId %d" TENDSTR), +- chunk, dev->checkpointCurrentBlock, dev->checkpointCurrentChunk, tags.objectId, tags.chunkId)); ++ chunk, dev->checkpt_cur_block, dev->checkpt_cur_chunk, tags.obj_id, tags.chunk_id)); + +- realignedChunk = chunk - dev->chunkOffset; ++ realignedChunk = chunk - dev->chunk_offset; + +- dev->writeChunkWithTagsToNAND(dev, realignedChunk, +- dev->checkpointBuffer, &tags); +- dev->checkpointByteOffset = 0; +- dev->checkpointPageSequence++; +- dev->checkpointCurrentChunk++; +- if (dev->checkpointCurrentChunk >= dev->nChunksPerBlock) { +- dev->checkpointCurrentChunk = 0; +- dev->checkpointCurrentBlock = -1; ++ dev->n_page_writes++; ++ ++ dev->param.write_chunk_tags_fn(dev, realignedChunk, ++ dev->checkpt_buffer, &tags); ++ dev->checkpt_byte_offs = 0; ++ dev->checkpt_page_seq++; ++ dev->checkpt_cur_chunk++; ++ if (dev->checkpt_cur_chunk >= dev->param.chunks_per_block) { ++ dev->checkpt_cur_chunk = 0; ++ dev->checkpt_cur_block = -1; + } +- memset(dev->checkpointBuffer, 0, dev->nDataBytesPerChunk); ++ memset(dev->checkpt_buffer, 0, dev->data_bytes_per_chunk); + + return 1; + } + + +-int yaffs_CheckpointWrite(yaffs_Device *dev, const void *data, int nBytes) ++int yaffs2_checkpt_wr(yaffs_dev_t *dev, const void *data, int n_bytes) + { + int i = 0; + int ok = 1; +@@ -244,36 +248,36 @@ int yaffs_CheckpointWrite(yaffs_Device * + + + +- if (!dev->checkpointBuffer) ++ if (!dev->checkpt_buffer) + return 0; + +- if (!dev->checkpointOpenForWrite) ++ if (!dev->checkpt_open_write) + return -1; + +- while (i < nBytes && ok) { +- dev->checkpointBuffer[dev->checkpointByteOffset] = *dataBytes; +- dev->checkpointSum += *dataBytes; +- dev->checkpointXor ^= *dataBytes; ++ while (i < n_bytes && ok) { ++ dev->checkpt_buffer[dev->checkpt_byte_offs] = *dataBytes; ++ dev->checkpt_sum += *dataBytes; ++ dev->checkpt_xor ^= *dataBytes; + +- dev->checkpointByteOffset++; ++ dev->checkpt_byte_offs++; + i++; + dataBytes++; +- dev->checkpointByteCount++; ++ dev->checkpt_byte_count++; + + +- if (dev->checkpointByteOffset < 0 || +- dev->checkpointByteOffset >= dev->nDataBytesPerChunk) +- ok = yaffs_CheckpointFlushBuffer(dev); ++ if (dev->checkpt_byte_offs < 0 || ++ dev->checkpt_byte_offs >= dev->data_bytes_per_chunk) ++ ok = yaffs2_checkpt_flush_buffer(dev); + } + + return i; + } + +-int yaffs_CheckpointRead(yaffs_Device *dev, void *data, int nBytes) ++int yaffs2_checkpt_rd(yaffs_dev_t *dev, void *data, int n_bytes) + { + int i = 0; + int ok = 1; +- yaffs_ExtendedTags tags; ++ yaffs_ext_tags tags; + + + int chunk; +@@ -281,113 +285,116 @@ int yaffs_CheckpointRead(yaffs_Device *d + + __u8 *dataBytes = (__u8 *)data; + +- if (!dev->checkpointBuffer) ++ if (!dev->checkpt_buffer) + return 0; + +- if (dev->checkpointOpenForWrite) ++ if (dev->checkpt_open_write) + return -1; + +- while (i < nBytes && ok) { ++ while (i < n_bytes && ok) { + + +- if (dev->checkpointByteOffset < 0 || +- dev->checkpointByteOffset >= dev->nDataBytesPerChunk) { ++ if (dev->checkpt_byte_offs < 0 || ++ dev->checkpt_byte_offs >= dev->data_bytes_per_chunk) { + +- if (dev->checkpointCurrentBlock < 0) { +- yaffs_CheckpointFindNextCheckpointBlock(dev); +- dev->checkpointCurrentChunk = 0; ++ if (dev->checkpt_cur_block < 0) { ++ yaffs2_checkpt_find_block(dev); ++ dev->checkpt_cur_chunk = 0; + } + +- if (dev->checkpointCurrentBlock < 0) ++ if (dev->checkpt_cur_block < 0) + ok = 0; + else { +- chunk = dev->checkpointCurrentBlock * +- dev->nChunksPerBlock + +- dev->checkpointCurrentChunk; +- +- realignedChunk = chunk - dev->chunkOffset; ++ chunk = dev->checkpt_cur_block * ++ dev->param.chunks_per_block + ++ dev->checkpt_cur_chunk; ++ ++ realignedChunk = chunk - dev->chunk_offset; ++ ++ dev->n_page_reads++; + + /* read in the next chunk */ + /* printf("read checkpoint page %d\n",dev->checkpointPage); */ +- dev->readChunkWithTagsFromNAND(dev, ++ dev->param.read_chunk_tags_fn(dev, + realignedChunk, +- dev->checkpointBuffer, ++ dev->checkpt_buffer, + &tags); + +- if (tags.chunkId != (dev->checkpointPageSequence + 1) || +- tags.eccResult > YAFFS_ECC_RESULT_FIXED || +- tags.sequenceNumber != YAFFS_SEQUENCE_CHECKPOINT_DATA) ++ if (tags.chunk_id != (dev->checkpt_page_seq + 1) || ++ tags.ecc_result > YAFFS_ECC_RESULT_FIXED || ++ tags.seq_number != YAFFS_SEQUENCE_CHECKPOINT_DATA) + ok = 0; + +- dev->checkpointByteOffset = 0; +- dev->checkpointPageSequence++; +- dev->checkpointCurrentChunk++; ++ dev->checkpt_byte_offs = 0; ++ dev->checkpt_page_seq++; ++ dev->checkpt_cur_chunk++; + +- if (dev->checkpointCurrentChunk >= dev->nChunksPerBlock) +- dev->checkpointCurrentBlock = -1; ++ if (dev->checkpt_cur_chunk >= dev->param.chunks_per_block) ++ dev->checkpt_cur_block = -1; + } + } + + if (ok) { +- *dataBytes = dev->checkpointBuffer[dev->checkpointByteOffset]; +- dev->checkpointSum += *dataBytes; +- dev->checkpointXor ^= *dataBytes; +- dev->checkpointByteOffset++; ++ *dataBytes = dev->checkpt_buffer[dev->checkpt_byte_offs]; ++ dev->checkpt_sum += *dataBytes; ++ dev->checkpt_xor ^= *dataBytes; ++ dev->checkpt_byte_offs++; + i++; + dataBytes++; +- dev->checkpointByteCount++; ++ dev->checkpt_byte_count++; + } + } + + return i; + } + +-int yaffs_CheckpointClose(yaffs_Device *dev) ++int yaffs_checkpt_close(yaffs_dev_t *dev) + { + +- if (dev->checkpointOpenForWrite) { +- if (dev->checkpointByteOffset != 0) +- yaffs_CheckpointFlushBuffer(dev); +- } else { ++ if (dev->checkpt_open_write) { ++ if (dev->checkpt_byte_offs != 0) ++ yaffs2_checkpt_flush_buffer(dev); ++ } else if(dev->checkpt_block_list){ + int i; +- for (i = 0; i < dev->blocksInCheckpoint && dev->checkpointBlockList[i] >= 0; i++) { +- yaffs_BlockInfo *bi = yaffs_GetBlockInfo(dev, dev->checkpointBlockList[i]); +- if (bi->blockState == YAFFS_BLOCK_STATE_EMPTY) +- bi->blockState = YAFFS_BLOCK_STATE_CHECKPOINT; ++ for (i = 0; i < dev->blocks_in_checkpt && dev->checkpt_block_list[i] >= 0; i++) { ++ int blk = dev->checkpt_block_list[i]; ++ yaffs_block_info_t *bi = NULL; ++ if( dev->internal_start_block <= blk && blk <= dev->internal_end_block) ++ bi = yaffs_get_block_info(dev, blk); ++ if (bi && bi->block_state == YAFFS_BLOCK_STATE_EMPTY) ++ bi->block_state = YAFFS_BLOCK_STATE_CHECKPOINT; + else { + /* Todo this looks odd... */ + } + } +- YFREE(dev->checkpointBlockList); +- dev->checkpointBlockList = NULL; ++ YFREE(dev->checkpt_block_list); ++ dev->checkpt_block_list = NULL; + } + +- dev->nFreeChunks -= dev->blocksInCheckpoint * dev->nChunksPerBlock; +- dev->nErasedBlocks -= dev->blocksInCheckpoint; ++ dev->n_free_chunks -= dev->blocks_in_checkpt * dev->param.chunks_per_block; ++ dev->n_erased_blocks -= dev->blocks_in_checkpt; + + + T(YAFFS_TRACE_CHECKPOINT, (TSTR("checkpoint byte count %d" TENDSTR), +- dev->checkpointByteCount)); ++ dev->checkpt_byte_count)); + +- if (dev->checkpointBuffer) { ++ if (dev->checkpt_buffer) { + /* free the buffer */ +- YFREE(dev->checkpointBuffer); +- dev->checkpointBuffer = NULL; ++ YFREE(dev->checkpt_buffer); ++ dev->checkpt_buffer = NULL; + return 1; + } else + return 0; + } + +-int yaffs_CheckpointInvalidateStream(yaffs_Device *dev) ++int yaffs2_checkpt_invalidate_stream(yaffs_dev_t *dev) + { +- /* Erase the first checksum block */ +- +- T(YAFFS_TRACE_CHECKPOINT, (TSTR("checkpoint invalidate"TENDSTR))); ++ /* Erase the checkpoint data */ + +- if (!yaffs_CheckpointSpaceOk(dev)) +- return 0; ++ T(YAFFS_TRACE_CHECKPOINT, (TSTR("checkpoint invalidate of %d blocks"TENDSTR), ++ dev->blocks_in_checkpt)); + +- return yaffs_CheckpointErase(dev); ++ return yaffs_checkpt_erase(dev); + } + + +--- a/fs/yaffs2/yaffs_checkptrw.h ++++ b/fs/yaffs2/yaffs_checkptrw.h +@@ -1,7 +1,7 @@ + /* + * YAFFS: Yet another Flash File System . A NAND-flash specific file system. + * +- * Copyright (C) 2002-2007 Aleph One Ltd. ++ * Copyright (C) 2002-2010 Aleph One Ltd. + * for Toby Churchill Ltd and Brightstar Engineering + * + * Created by Charles Manning +@@ -18,18 +18,17 @@ + + #include "yaffs_guts.h" + +-int yaffs_CheckpointOpen(yaffs_Device *dev, int forWriting); ++int yaffs2_checkpt_open(yaffs_dev_t *dev, int forWriting); + +-int yaffs_CheckpointWrite(yaffs_Device *dev, const void *data, int nBytes); ++int yaffs2_checkpt_wr(yaffs_dev_t *dev, const void *data, int n_bytes); + +-int yaffs_CheckpointRead(yaffs_Device *dev, void *data, int nBytes); ++int yaffs2_checkpt_rd(yaffs_dev_t *dev, void *data, int n_bytes); + +-int yaffs_GetCheckpointSum(yaffs_Device *dev, __u32 *sum); ++int yaffs2_get_checkpt_sum(yaffs_dev_t *dev, __u32 *sum); + +-int yaffs_CheckpointClose(yaffs_Device *dev); ++int yaffs_checkpt_close(yaffs_dev_t *dev); + +-int yaffs_CheckpointInvalidateStream(yaffs_Device *dev); ++int yaffs2_checkpt_invalidate_stream(yaffs_dev_t *dev); + + + #endif +- +--- a/fs/yaffs2/yaffs_ecc.c ++++ b/fs/yaffs2/yaffs_ecc.c +@@ -1,7 +1,7 @@ + /* + * YAFFS: Yet Another Flash File System. A NAND-flash specific file system. + * +- * Copyright (C) 2002-2007 Aleph One Ltd. ++ * Copyright (C) 2002-2010 Aleph One Ltd. + * for Toby Churchill Ltd and Brightstar Engineering + * + * Created by Charles Manning +@@ -28,9 +28,6 @@ + * this bytes influence on the line parity. + */ + +-const char *yaffs_ecc_c_version = +- "$Id: yaffs_ecc.c,v 1.11 2009-03-06 17:20:50 wookey Exp $"; +- + #include "yportenv.h" + + #include "yaffs_ecc.h" +@@ -72,7 +69,7 @@ static const unsigned char column_parity + + /* Count the bits in an unsigned char or a U32 */ + +-static int yaffs_CountBits(unsigned char x) ++static int yaffs_count_bits(unsigned char x) + { + int r = 0; + while (x) { +@@ -83,7 +80,7 @@ static int yaffs_CountBits(unsigned char + return r; + } + +-static int yaffs_CountBits32(unsigned x) ++static int yaffs_count_bits32(unsigned x) + { + int r = 0; + while (x) { +@@ -95,7 +92,7 @@ static int yaffs_CountBits32(unsigned x) + } + + /* Calculate the ECC for a 256-byte block of data */ +-void yaffs_ECCCalculate(const unsigned char *data, unsigned char *ecc) ++void yaffs_ecc_cacl(const unsigned char *data, unsigned char *ecc) + { + unsigned int i; + +@@ -166,7 +163,7 @@ void yaffs_ECCCalculate(const unsigned c + + /* Correct the ECC on a 256 byte block of data */ + +-int yaffs_ECCCorrect(unsigned char *data, unsigned char *read_ecc, ++int yaffs_ecc_correct(unsigned char *data, unsigned char *read_ecc, + const unsigned char *test_ecc) + { + unsigned char d0, d1, d2; /* deltas */ +@@ -226,9 +223,9 @@ int yaffs_ECCCorrect(unsigned char *data + return 1; /* Corrected the error */ + } + +- if ((yaffs_CountBits(d0) + +- yaffs_CountBits(d1) + +- yaffs_CountBits(d2)) == 1) { ++ if ((yaffs_count_bits(d0) + ++ yaffs_count_bits(d1) + ++ yaffs_count_bits(d2)) == 1) { + /* Reccoverable error in ecc */ + + read_ecc[0] = test_ecc[0]; +@@ -248,7 +245,7 @@ int yaffs_ECCCorrect(unsigned char *data + /* + * ECCxxxOther does ECC calcs on arbitrary n bytes of data + */ +-void yaffs_ECCCalculateOther(const unsigned char *data, unsigned nBytes, ++void yaffs_ecc_calc_other(const unsigned char *data, unsigned n_bytes, + yaffs_ECCOther *eccOther) + { + unsigned int i; +@@ -258,7 +255,7 @@ void yaffs_ECCCalculateOther(const unsig + unsigned line_parity_prime = 0; + unsigned char b; + +- for (i = 0; i < nBytes; i++) { ++ for (i = 0; i < n_bytes; i++) { + b = column_parity_table[*data++]; + col_parity ^= b; + +@@ -275,7 +272,7 @@ void yaffs_ECCCalculateOther(const unsig + eccOther->lineParityPrime = line_parity_prime; + } + +-int yaffs_ECCCorrectOther(unsigned char *data, unsigned nBytes, ++int yaffs_ecc_correct_other(unsigned char *data, unsigned n_bytes, + yaffs_ECCOther *read_ecc, + const yaffs_ECCOther *test_ecc) + { +@@ -304,7 +301,7 @@ int yaffs_ECCCorrectOther(unsigned char + if (cDelta & 0x02) + bit |= 0x01; + +- if (lDelta >= nBytes) ++ if (lDelta >= n_bytes) + return -1; + + data[lDelta] ^= (1 << bit); +@@ -312,8 +309,8 @@ int yaffs_ECCCorrectOther(unsigned char + return 1; /* corrected */ + } + +- if ((yaffs_CountBits32(lDelta) + yaffs_CountBits32(lDeltaPrime) + +- yaffs_CountBits(cDelta)) == 1) { ++ if ((yaffs_count_bits32(lDelta) + yaffs_count_bits32(lDeltaPrime) + ++ yaffs_count_bits(cDelta)) == 1) { + /* Reccoverable error in ecc */ + + *read_ecc = *test_ecc; +--- a/fs/yaffs2/yaffs_ecc.h ++++ b/fs/yaffs2/yaffs_ecc.h +@@ -1,7 +1,7 @@ + /* + * YAFFS: Yet another Flash File System . A NAND-flash specific file system. + * +- * Copyright (C) 2002-2007 Aleph One Ltd. ++ * Copyright (C) 2002-2010 Aleph One Ltd. + * for Toby Churchill Ltd and Brightstar Engineering + * + * Created by Charles Manning +@@ -32,13 +32,13 @@ typedef struct { + unsigned lineParityPrime; + } yaffs_ECCOther; + +-void yaffs_ECCCalculate(const unsigned char *data, unsigned char *ecc); +-int yaffs_ECCCorrect(unsigned char *data, unsigned char *read_ecc, ++void yaffs_ecc_cacl(const unsigned char *data, unsigned char *ecc); ++int yaffs_ecc_correct(unsigned char *data, unsigned char *read_ecc, + const unsigned char *test_ecc); + +-void yaffs_ECCCalculateOther(const unsigned char *data, unsigned nBytes, ++void yaffs_ecc_calc_other(const unsigned char *data, unsigned n_bytes, + yaffs_ECCOther *ecc); +-int yaffs_ECCCorrectOther(unsigned char *data, unsigned nBytes, ++int yaffs_ecc_correct_other(unsigned char *data, unsigned n_bytes, + yaffs_ECCOther *read_ecc, + const yaffs_ECCOther *test_ecc); + #endif +--- a/fs/yaffs2/yaffs_fs.c ++++ /dev/null +@@ -1,2529 +0,0 @@ +-/* +- * YAFFS: Yet Another Flash File System. A NAND-flash specific file system. +- * +- * Copyright (C) 2002-2009 Aleph One Ltd. +- * for Toby Churchill Ltd and Brightstar Engineering +- * +- * Created by Charles Manning +- * Acknowledgements: +- * Luc van OostenRyck for numerous patches. +- * Nick Bane for numerous patches. +- * Nick Bane for 2.5/2.6 integration. +- * Andras Toth for mknod rdev issue. +- * Michael Fischer for finding the problem with inode inconsistency. +- * Some code bodily lifted from JFFS +- * +- * This program is free software; you can redistribute it and/or modify +- * it under the terms of the GNU General Public License version 2 as +- * published by the Free Software Foundation. +- */ +- +-/* +- * +- * This is the file system front-end to YAFFS that hooks it up to +- * the VFS. +- * +- * Special notes: +- * >> 2.4: sb->u.generic_sbp points to the yaffs_Device associated with +- * this superblock +- * >> 2.6: sb->s_fs_info points to the yaffs_Device associated with this +- * superblock +- * >> inode->u.generic_ip points to the associated yaffs_Object. +- */ +- +-const char *yaffs_fs_c_version = +- "$Id: yaffs_fs.c,v 1.79 2009-03-17 01:12:00 wookey Exp $"; +-extern const char *yaffs_guts_c_version; +- +-#include +-#if (LINUX_VERSION_CODE < KERNEL_VERSION(2, 6, 19)) +-#include +-#endif +-#include +-#include +-#include +-#include +-#include +-#include +-#include +-#include +-#include +-#include +-#include +-#include +- +-#include "asm/div64.h" +- +-#if (LINUX_VERSION_CODE > KERNEL_VERSION(2, 5, 0)) +- +-#include /* Added NCB 15-8-2003 */ +-#include +-#define UnlockPage(p) unlock_page(p) +-#define Page_Uptodate(page) test_bit(PG_uptodate, &(page)->flags) +- +-/* FIXME: use sb->s_id instead ? */ +-#define yaffs_devname(sb, buf) bdevname(sb->s_bdev, buf) +- +-#else +- +-#include +-#define BDEVNAME_SIZE 0 +-#define yaffs_devname(sb, buf) kdevname(sb->s_dev) +- +-#if (LINUX_VERSION_CODE < KERNEL_VERSION(2, 5, 0)) +-/* added NCB 26/5/2006 for 2.4.25-vrs2-tcl1 kernel */ +-#define __user +-#endif +- +-#endif +- +-#if (LINUX_VERSION_CODE < KERNEL_VERSION(2, 6, 26)) +-#define YPROC_ROOT (&proc_root) +-#else +-#define YPROC_ROOT NULL +-#endif +- +-#if (LINUX_VERSION_CODE > KERNEL_VERSION(2, 6, 17)) +-#define WRITE_SIZE_STR "writesize" +-#define WRITE_SIZE(mtd) ((mtd)->writesize) +-#else +-#define WRITE_SIZE_STR "oobblock" +-#define WRITE_SIZE(mtd) ((mtd)->oobblock) +-#endif +- +-#if (LINUX_VERSION_CODE > KERNEL_VERSION(2, 6, 27)) +-#define YAFFS_USE_WRITE_BEGIN_END 1 +-#else +-#define YAFFS_USE_WRITE_BEGIN_END 0 +-#endif +- +-#if (LINUX_VERSION_CODE > KERNEL_VERSION(2, 6, 28)) +-static uint32_t YCALCBLOCKS(uint64_t partition_size, uint32_t block_size) +-{ +- uint64_t result = partition_size; +- do_div(result, block_size); +- return (uint32_t)result; +-} +-#else +-#define YCALCBLOCKS(s, b) ((s)/(b)) +-#endif +- +-#include +- +-#include "yportenv.h" +-#include "yaffs_guts.h" +- +-#include +-#include "yaffs_mtdif.h" +-#include "yaffs_mtdif1.h" +-#include "yaffs_mtdif2.h" +- +-unsigned int yaffs_traceMask = YAFFS_TRACE_BAD_BLOCKS; +-unsigned int yaffs_wr_attempts = YAFFS_WR_ATTEMPTS; +-unsigned int yaffs_auto_checkpoint = 1; +- +-/* Module Parameters */ +-#if (LINUX_VERSION_CODE > KERNEL_VERSION(2, 5, 0)) +-module_param(yaffs_traceMask, uint, 0644); +-module_param(yaffs_wr_attempts, uint, 0644); +-module_param(yaffs_auto_checkpoint, uint, 0644); +-#else +-MODULE_PARM(yaffs_traceMask, "i"); +-MODULE_PARM(yaffs_wr_attempts, "i"); +-MODULE_PARM(yaffs_auto_checkpoint, "i"); +-#endif +- +-#if (LINUX_VERSION_CODE < KERNEL_VERSION(2, 6, 25)) +-/* use iget and read_inode */ +-#define Y_IGET(sb, inum) iget((sb), (inum)) +-static void yaffs_read_inode(struct inode *inode); +- +-#else +-/* Call local equivalent */ +-#define YAFFS_USE_OWN_IGET +-#define Y_IGET(sb, inum) yaffs_iget((sb), (inum)) +- +-static struct inode *yaffs_iget(struct super_block *sb, unsigned long ino); +-#endif +- +-/*#define T(x) printk x */ +- +-#if (LINUX_VERSION_CODE > KERNEL_VERSION(2, 6, 18)) +-#define yaffs_InodeToObjectLV(iptr) ((iptr)->i_private) +-#else +-#define yaffs_InodeToObjectLV(iptr) ((iptr)->u.generic_ip) +-#endif +- +-#define yaffs_InodeToObject(iptr) ((yaffs_Object *)(yaffs_InodeToObjectLV(iptr))) +-#define yaffs_DentryToObject(dptr) yaffs_InodeToObject((dptr)->d_inode) +- +-#if (LINUX_VERSION_CODE > KERNEL_VERSION(2, 5, 0)) +-#define yaffs_SuperToDevice(sb) ((yaffs_Device *)sb->s_fs_info) +-#else +-#define yaffs_SuperToDevice(sb) ((yaffs_Device *)sb->u.generic_sbp) +-#endif +- +-static void yaffs_put_super(struct super_block *sb); +- +-static ssize_t yaffs_file_write(struct file *f, const char *buf, size_t n, +- loff_t *pos); +-static ssize_t yaffs_hold_space(struct file *f); +-static void yaffs_release_space(struct file *f); +- +-#if (LINUX_VERSION_CODE > KERNEL_VERSION(2, 6, 17)) +-static int yaffs_file_flush(struct file *file, fl_owner_t id); +-#else +-static int yaffs_file_flush(struct file *file); +-#endif +- +-static int yaffs_sync_object(struct file *file, struct dentry *dentry, +- int datasync); +- +-static int yaffs_readdir(struct file *f, void *dirent, filldir_t filldir); +- +-#if (LINUX_VERSION_CODE > KERNEL_VERSION(2, 5, 0)) +-static int yaffs_create(struct inode *dir, struct dentry *dentry, int mode, +- struct nameidata *n); +-static struct dentry *yaffs_lookup(struct inode *dir, struct dentry *dentry, +- struct nameidata *n); +-#else +-static int yaffs_create(struct inode *dir, struct dentry *dentry, int mode); +-static struct dentry *yaffs_lookup(struct inode *dir, struct dentry *dentry); +-#endif +-static int yaffs_link(struct dentry *old_dentry, struct inode *dir, +- struct dentry *dentry); +-static int yaffs_unlink(struct inode *dir, struct dentry *dentry); +-static int yaffs_symlink(struct inode *dir, struct dentry *dentry, +- const char *symname); +-static int yaffs_mkdir(struct inode *dir, struct dentry *dentry, int mode); +- +-#if (LINUX_VERSION_CODE > KERNEL_VERSION(2, 5, 0)) +-static int yaffs_mknod(struct inode *dir, struct dentry *dentry, int mode, +- dev_t dev); +-#else +-static int yaffs_mknod(struct inode *dir, struct dentry *dentry, int mode, +- int dev); +-#endif +-static int yaffs_rename(struct inode *old_dir, struct dentry *old_dentry, +- struct inode *new_dir, struct dentry *new_dentry); +-static int yaffs_setattr(struct dentry *dentry, struct iattr *attr); +- +-#if (LINUX_VERSION_CODE > KERNEL_VERSION(2, 6, 17)) +-static int yaffs_sync_fs(struct super_block *sb, int wait); +-static void yaffs_write_super(struct super_block *sb); +-#else +-static int yaffs_sync_fs(struct super_block *sb); +-static int yaffs_write_super(struct super_block *sb); +-#endif +- +-#if (LINUX_VERSION_CODE > KERNEL_VERSION(2, 6, 17)) +-static int yaffs_statfs(struct dentry *dentry, struct kstatfs *buf); +-#elif (LINUX_VERSION_CODE > KERNEL_VERSION(2, 5, 0)) +-static int yaffs_statfs(struct super_block *sb, struct kstatfs *buf); +-#else +-static int yaffs_statfs(struct super_block *sb, struct statfs *buf); +-#endif +- +-#ifdef YAFFS_HAS_PUT_INODE +-static void yaffs_put_inode(struct inode *inode); +-#endif +- +-static void yaffs_delete_inode(struct inode *); +-static void yaffs_clear_inode(struct inode *); +- +-static int yaffs_readpage(struct file *file, struct page *page); +-#if (LINUX_VERSION_CODE > KERNEL_VERSION(2, 5, 0)) +-static int yaffs_writepage(struct page *page, struct writeback_control *wbc); +-#else +-static int yaffs_writepage(struct page *page); +-#endif +- +- +-#if (YAFFS_USE_WRITE_BEGIN_END != 0) +-static int yaffs_write_begin(struct file *filp, struct address_space *mapping, +- loff_t pos, unsigned len, unsigned flags, +- struct page **pagep, void **fsdata); +-static int yaffs_write_end(struct file *filp, struct address_space *mapping, +- loff_t pos, unsigned len, unsigned copied, +- struct page *pg, void *fsdadata); +-#else +-static int yaffs_prepare_write(struct file *f, struct page *pg, +- unsigned offset, unsigned to); +-static int yaffs_commit_write(struct file *f, struct page *pg, unsigned offset, +- unsigned to); +- +-#endif +- +-static int yaffs_readlink(struct dentry *dentry, char __user *buffer, +- int buflen); +-#if (LINUX_VERSION_CODE > KERNEL_VERSION(2, 6, 13)) +-static void *yaffs_follow_link(struct dentry *dentry, struct nameidata *nd); +-#else +-static int yaffs_follow_link(struct dentry *dentry, struct nameidata *nd); +-#endif +- +-static struct address_space_operations yaffs_file_address_operations = { +- .readpage = yaffs_readpage, +- .writepage = yaffs_writepage, +-#if (YAFFS_USE_WRITE_BEGIN_END > 0) +- .write_begin = yaffs_write_begin, +- .write_end = yaffs_write_end, +-#else +- .prepare_write = yaffs_prepare_write, +- .commit_write = yaffs_commit_write, +-#endif +-}; +- +-#if (LINUX_VERSION_CODE > KERNEL_VERSION(2, 6, 22)) +-static const struct file_operations yaffs_file_operations = { +- .read = do_sync_read, +- .write = do_sync_write, +- .aio_read = generic_file_aio_read, +- .aio_write = generic_file_aio_write, +- .mmap = generic_file_mmap, +- .flush = yaffs_file_flush, +- .fsync = yaffs_sync_object, +- .splice_read = generic_file_splice_read, +- .splice_write = generic_file_splice_write, +- .llseek = generic_file_llseek, +-}; +- +-#elif (LINUX_VERSION_CODE > KERNEL_VERSION(2, 6, 18)) +- +-static const struct file_operations yaffs_file_operations = { +- .read = do_sync_read, +- .write = do_sync_write, +- .aio_read = generic_file_aio_read, +- .aio_write = generic_file_aio_write, +- .mmap = generic_file_mmap, +- .flush = yaffs_file_flush, +- .fsync = yaffs_sync_object, +- .sendfile = generic_file_sendfile, +-}; +- +-#else +- +-static const struct file_operations yaffs_file_operations = { +- .read = generic_file_read, +- .write = generic_file_write, +- .mmap = generic_file_mmap, +- .flush = yaffs_file_flush, +- .fsync = yaffs_sync_object, +-#if (LINUX_VERSION_CODE > KERNEL_VERSION(2, 5, 0)) +- .sendfile = generic_file_sendfile, +-#endif +-}; +-#endif +- +-static const struct inode_operations yaffs_file_inode_operations = { +- .setattr = yaffs_setattr, +-}; +- +-static const struct inode_operations yaffs_symlink_inode_operations = { +- .readlink = yaffs_readlink, +- .follow_link = yaffs_follow_link, +- .setattr = yaffs_setattr, +-}; +- +-static const struct inode_operations yaffs_dir_inode_operations = { +- .create = yaffs_create, +- .lookup = yaffs_lookup, +- .link = yaffs_link, +- .unlink = yaffs_unlink, +- .symlink = yaffs_symlink, +- .mkdir = yaffs_mkdir, +- .rmdir = yaffs_unlink, +- .mknod = yaffs_mknod, +- .rename = yaffs_rename, +- .setattr = yaffs_setattr, +-}; +- +-static const struct file_operations yaffs_dir_operations = { +- .read = generic_read_dir, +- .readdir = yaffs_readdir, +- .fsync = yaffs_sync_object, +-}; +- +-static const struct super_operations yaffs_super_ops = { +- .statfs = yaffs_statfs, +- +-#ifndef YAFFS_USE_OWN_IGET +- .read_inode = yaffs_read_inode, +-#endif +-#ifdef YAFFS_HAS_PUT_INODE +- .put_inode = yaffs_put_inode, +-#endif +- .put_super = yaffs_put_super, +- .delete_inode = yaffs_delete_inode, +- .clear_inode = yaffs_clear_inode, +- .sync_fs = yaffs_sync_fs, +- .write_super = yaffs_write_super, +-}; +- +-static void yaffs_GrossLock(yaffs_Device *dev) +-{ +- T(YAFFS_TRACE_OS, ("yaffs locking %p\n", current)); +- down(&dev->grossLock); +- T(YAFFS_TRACE_OS, ("yaffs locked %p\n", current)); +-} +- +-static void yaffs_GrossUnlock(yaffs_Device *dev) +-{ +- T(YAFFS_TRACE_OS, ("yaffs unlocking %p\n", current)); +- up(&dev->grossLock); +-} +- +-static int yaffs_readlink(struct dentry *dentry, char __user *buffer, +- int buflen) +-{ +- unsigned char *alias; +- int ret; +- +- yaffs_Device *dev = yaffs_DentryToObject(dentry)->myDev; +- +- yaffs_GrossLock(dev); +- +- alias = yaffs_GetSymlinkAlias(yaffs_DentryToObject(dentry)); +- +- yaffs_GrossUnlock(dev); +- +- if (!alias) +- return -ENOMEM; +- +- ret = vfs_readlink(dentry, buffer, buflen, alias); +- kfree(alias); +- return ret; +-} +- +-#if (LINUX_VERSION_CODE > KERNEL_VERSION(2, 6, 13)) +-static void *yaffs_follow_link(struct dentry *dentry, struct nameidata *nd) +-#else +-static int yaffs_follow_link(struct dentry *dentry, struct nameidata *nd) +-#endif +-{ +- unsigned char *alias; +- int ret; +- yaffs_Device *dev = yaffs_DentryToObject(dentry)->myDev; +- +- yaffs_GrossLock(dev); +- +- alias = yaffs_GetSymlinkAlias(yaffs_DentryToObject(dentry)); +- +- yaffs_GrossUnlock(dev); +- +- if (!alias) { +- ret = -ENOMEM; +- goto out; +- } +- +- ret = vfs_follow_link(nd, alias); +- kfree(alias); +-out: +-#if (LINUX_VERSION_CODE > KERNEL_VERSION(2, 6, 13)) +- return ERR_PTR(ret); +-#else +- return ret; +-#endif +-} +- +-struct inode *yaffs_get_inode(struct super_block *sb, int mode, int dev, +- yaffs_Object *obj); +- +-/* +- * Lookup is used to find objects in the fs +- */ +-#if (LINUX_VERSION_CODE > KERNEL_VERSION(2, 5, 0)) +- +-static struct dentry *yaffs_lookup(struct inode *dir, struct dentry *dentry, +- struct nameidata *n) +-#else +-static struct dentry *yaffs_lookup(struct inode *dir, struct dentry *dentry) +-#endif +-{ +- yaffs_Object *obj; +- struct inode *inode = NULL; /* NCB 2.5/2.6 needs NULL here */ +- +- yaffs_Device *dev = yaffs_InodeToObject(dir)->myDev; +- +- yaffs_GrossLock(dev); +- +- T(YAFFS_TRACE_OS, +- ("yaffs_lookup for %d:%s\n", +- yaffs_InodeToObject(dir)->objectId, dentry->d_name.name)); +- +- obj = yaffs_FindObjectByName(yaffs_InodeToObject(dir), +- dentry->d_name.name); +- +- obj = yaffs_GetEquivalentObject(obj); /* in case it was a hardlink */ +- +- /* Can't hold gross lock when calling yaffs_get_inode() */ +- yaffs_GrossUnlock(dev); +- +- if (obj) { +- T(YAFFS_TRACE_OS, +- ("yaffs_lookup found %d\n", obj->objectId)); +- +- inode = yaffs_get_inode(dir->i_sb, obj->yst_mode, 0, obj); +- +- if (inode) { +- T(YAFFS_TRACE_OS, +- ("yaffs_loookup dentry \n")); +-/* #if 0 asserted by NCB for 2.5/6 compatability - falls through to +- * d_add even if NULL inode */ +-#if 0 +- /*dget(dentry); // try to solve directory bug */ +- d_add(dentry, inode); +- +- /* return dentry; */ +- return NULL; +-#endif +- } +- +- } else { +- T(YAFFS_TRACE_OS, ("yaffs_lookup not found\n")); +- +- } +- +-/* added NCB for 2.5/6 compatability - forces add even if inode is +- * NULL which creates dentry hash */ +- d_add(dentry, inode); +- +- return NULL; +-} +- +- +-#ifdef YAFFS_HAS_PUT_INODE +- +-/* For now put inode is just for debugging +- * Put inode is called when the inode **structure** is put. +- */ +-static void yaffs_put_inode(struct inode *inode) +-{ +- T(YAFFS_TRACE_OS, +- ("yaffs_put_inode: ino %d, count %d\n", (int)inode->i_ino, +- atomic_read(&inode->i_count))); +- +-} +-#endif +- +-/* clear is called to tell the fs to release any per-inode data it holds */ +-static void yaffs_clear_inode(struct inode *inode) +-{ +- yaffs_Object *obj; +- yaffs_Device *dev; +- +- obj = yaffs_InodeToObject(inode); +- +- T(YAFFS_TRACE_OS, +- ("yaffs_clear_inode: ino %d, count %d %s\n", (int)inode->i_ino, +- atomic_read(&inode->i_count), +- obj ? "object exists" : "null object")); +- +- if (obj) { +- dev = obj->myDev; +- yaffs_GrossLock(dev); +- +- /* Clear the association between the inode and +- * the yaffs_Object. +- */ +- obj->myInode = NULL; +- yaffs_InodeToObjectLV(inode) = NULL; +- +- /* If the object freeing was deferred, then the real +- * free happens now. +- * This should fix the inode inconsistency problem. +- */ +- +- yaffs_HandleDeferedFree(obj); +- +- yaffs_GrossUnlock(dev); +- } +- +-} +- +-/* delete is called when the link count is zero and the inode +- * is put (ie. nobody wants to know about it anymore, time to +- * delete the file). +- * NB Must call clear_inode() +- */ +-static void yaffs_delete_inode(struct inode *inode) +-{ +- yaffs_Object *obj = yaffs_InodeToObject(inode); +- yaffs_Device *dev; +- +- T(YAFFS_TRACE_OS, +- ("yaffs_delete_inode: ino %d, count %d %s\n", (int)inode->i_ino, +- atomic_read(&inode->i_count), +- obj ? "object exists" : "null object")); +- +- if (obj) { +- dev = obj->myDev; +- yaffs_GrossLock(dev); +- yaffs_DeleteObject(obj); +- yaffs_GrossUnlock(dev); +- } +-#if (LINUX_VERSION_CODE > KERNEL_VERSION(2, 6, 13)) +- truncate_inode_pages(&inode->i_data, 0); +-#endif +- clear_inode(inode); +-} +- +-#if (LINUX_VERSION_CODE > KERNEL_VERSION(2, 6, 17)) +-static int yaffs_file_flush(struct file *file, fl_owner_t id) +-#else +-static int yaffs_file_flush(struct file *file) +-#endif +-{ +- yaffs_Object *obj = yaffs_DentryToObject(file->f_dentry); +- +- yaffs_Device *dev = obj->myDev; +- +- T(YAFFS_TRACE_OS, +- ("yaffs_file_flush object %d (%s)\n", obj->objectId, +- obj->dirty ? "dirty" : "clean")); +- +- yaffs_GrossLock(dev); +- +- yaffs_FlushFile(obj, 1); +- +- yaffs_GrossUnlock(dev); +- +- return 0; +-} +- +-static int yaffs_readpage_nolock(struct file *f, struct page *pg) +-{ +- /* Lifted from jffs2 */ +- +- yaffs_Object *obj; +- unsigned char *pg_buf; +- int ret; +- +- yaffs_Device *dev; +- +- T(YAFFS_TRACE_OS, ("yaffs_readpage at %08x, size %08x\n", +- (unsigned)(pg->index << PAGE_CACHE_SHIFT), +- (unsigned)PAGE_CACHE_SIZE)); +- +- obj = yaffs_DentryToObject(f->f_dentry); +- +- dev = obj->myDev; +- +-#if (LINUX_VERSION_CODE > KERNEL_VERSION(2, 5, 0)) +- BUG_ON(!PageLocked(pg)); +-#else +- if (!PageLocked(pg)) +- PAGE_BUG(pg); +-#endif +- +- pg_buf = kmap(pg); +- /* FIXME: Can kmap fail? */ +- +- yaffs_GrossLock(dev); +- +- ret = yaffs_ReadDataFromFile(obj, pg_buf, +- pg->index << PAGE_CACHE_SHIFT, +- PAGE_CACHE_SIZE); +- +- yaffs_GrossUnlock(dev); +- +- if (ret >= 0) +- ret = 0; +- +- if (ret) { +- ClearPageUptodate(pg); +- SetPageError(pg); +- } else { +- SetPageUptodate(pg); +- ClearPageError(pg); +- } +- +- flush_dcache_page(pg); +- kunmap(pg); +- +- T(YAFFS_TRACE_OS, ("yaffs_readpage done\n")); +- return ret; +-} +- +-static int yaffs_readpage_unlock(struct file *f, struct page *pg) +-{ +- int ret = yaffs_readpage_nolock(f, pg); +- UnlockPage(pg); +- return ret; +-} +- +-static int yaffs_readpage(struct file *f, struct page *pg) +-{ +- return yaffs_readpage_unlock(f, pg); +-} +- +-/* writepage inspired by/stolen from smbfs */ +- +-#if (LINUX_VERSION_CODE > KERNEL_VERSION(2, 5, 0)) +-static int yaffs_writepage(struct page *page, struct writeback_control *wbc) +-#else +-static int yaffs_writepage(struct page *page) +-#endif +-{ +- struct address_space *mapping = page->mapping; +- loff_t offset = (loff_t) page->index << PAGE_CACHE_SHIFT; +- struct inode *inode; +- unsigned long end_index; +- char *buffer; +- yaffs_Object *obj; +- int nWritten = 0; +- unsigned nBytes; +- +- if (!mapping) +- BUG(); +- inode = mapping->host; +- if (!inode) +- BUG(); +- +- if (offset > inode->i_size) { +- T(YAFFS_TRACE_OS, +- ("yaffs_writepage at %08x, inode size = %08x!!!\n", +- (unsigned)(page->index << PAGE_CACHE_SHIFT), +- (unsigned)inode->i_size)); +- T(YAFFS_TRACE_OS, +- (" -> don't care!!\n")); +- unlock_page(page); +- return 0; +- } +- +- end_index = inode->i_size >> PAGE_CACHE_SHIFT; +- +- /* easy case */ +- if (page->index < end_index) +- nBytes = PAGE_CACHE_SIZE; +- else +- nBytes = inode->i_size & (PAGE_CACHE_SIZE - 1); +- +- get_page(page); +- +- buffer = kmap(page); +- +- obj = yaffs_InodeToObject(inode); +- yaffs_GrossLock(obj->myDev); +- +- T(YAFFS_TRACE_OS, +- ("yaffs_writepage at %08x, size %08x\n", +- (unsigned)(page->index << PAGE_CACHE_SHIFT), nBytes)); +- T(YAFFS_TRACE_OS, +- ("writepag0: obj = %05x, ino = %05x\n", +- (int)obj->variant.fileVariant.fileSize, (int)inode->i_size)); +- +- nWritten = yaffs_WriteDataToFile(obj, buffer, +- page->index << PAGE_CACHE_SHIFT, nBytes, 0); +- +- T(YAFFS_TRACE_OS, +- ("writepag1: obj = %05x, ino = %05x\n", +- (int)obj->variant.fileVariant.fileSize, (int)inode->i_size)); +- +- yaffs_GrossUnlock(obj->myDev); +- +- kunmap(page); +- SetPageUptodate(page); +- UnlockPage(page); +- put_page(page); +- +- return (nWritten == nBytes) ? 0 : -ENOSPC; +-} +- +- +-#if (YAFFS_USE_WRITE_BEGIN_END > 0) +-static int yaffs_write_begin(struct file *filp, struct address_space *mapping, +- loff_t pos, unsigned len, unsigned flags, +- struct page **pagep, void **fsdata) +-{ +- struct page *pg = NULL; +- pgoff_t index = pos >> PAGE_CACHE_SHIFT; +- uint32_t offset = pos & (PAGE_CACHE_SIZE - 1); +- uint32_t to = offset + len; +- +- int ret = 0; +- int space_held = 0; +- +- T(YAFFS_TRACE_OS, ("start yaffs_write_begin\n")); +- /* Get a page */ +-#if LINUX_VERSION_CODE > KERNEL_VERSION(2, 6, 28) +- pg = grab_cache_page_write_begin(mapping, index, flags); +-#else +- pg = __grab_cache_page(mapping, index); +-#endif +- +- *pagep = pg; +- if (!pg) { +- ret = -ENOMEM; +- goto out; +- } +- /* Get fs space */ +- space_held = yaffs_hold_space(filp); +- +- if (!space_held) { +- ret = -ENOSPC; +- goto out; +- } +- +- /* Update page if required */ +- +- if (!Page_Uptodate(pg) && (offset || to < PAGE_CACHE_SIZE)) +- ret = yaffs_readpage_nolock(filp, pg); +- +- if (ret) +- goto out; +- +- /* Happy path return */ +- T(YAFFS_TRACE_OS, ("end yaffs_write_begin - ok\n")); +- +- return 0; +- +-out: +- T(YAFFS_TRACE_OS, ("end yaffs_write_begin fail returning %d\n", ret)); +- if (space_held) +- yaffs_release_space(filp); +- if (pg) { +- unlock_page(pg); +- page_cache_release(pg); +- } +- return ret; +-} +- +-#else +- +-static int yaffs_prepare_write(struct file *f, struct page *pg, +- unsigned offset, unsigned to) +-{ +- T(YAFFS_TRACE_OS, ("yaffs_prepair_write\n")); +- +- if (!Page_Uptodate(pg) && (offset || to < PAGE_CACHE_SIZE)) +- return yaffs_readpage_nolock(f, pg); +- return 0; +-} +-#endif +- +-#if (YAFFS_USE_WRITE_BEGIN_END > 0) +-static int yaffs_write_end(struct file *filp, struct address_space *mapping, +- loff_t pos, unsigned len, unsigned copied, +- struct page *pg, void *fsdadata) +-{ +- int ret = 0; +- void *addr, *kva; +- uint32_t offset_into_page = pos & (PAGE_CACHE_SIZE - 1); +- +- kva = kmap(pg); +- addr = kva + offset_into_page; +- +- T(YAFFS_TRACE_OS, +- ("yaffs_write_end addr %x pos %x nBytes %d\n", +- (unsigned) addr, +- (int)pos, copied)); +- +- ret = yaffs_file_write(filp, addr, copied, &pos); +- +- if (ret != copied) { +- T(YAFFS_TRACE_OS, +- ("yaffs_write_end not same size ret %d copied %d\n", +- ret, copied)); +- SetPageError(pg); +- ClearPageUptodate(pg); +- } else { +- SetPageUptodate(pg); +- } +- +- kunmap(pg); +- +- yaffs_release_space(filp); +- unlock_page(pg); +- page_cache_release(pg); +- return ret; +-} +-#else +- +-static int yaffs_commit_write(struct file *f, struct page *pg, unsigned offset, +- unsigned to) +-{ +- void *addr, *kva; +- +- loff_t pos = (((loff_t) pg->index) << PAGE_CACHE_SHIFT) + offset; +- int nBytes = to - offset; +- int nWritten; +- +- unsigned spos = pos; +- unsigned saddr; +- +- kva = kmap(pg); +- addr = kva + offset; +- +- saddr = (unsigned) addr; +- +- T(YAFFS_TRACE_OS, +- ("yaffs_commit_write addr %x pos %x nBytes %d\n", +- saddr, spos, nBytes)); +- +- nWritten = yaffs_file_write(f, addr, nBytes, &pos); +- +- if (nWritten != nBytes) { +- T(YAFFS_TRACE_OS, +- ("yaffs_commit_write not same size nWritten %d nBytes %d\n", +- nWritten, nBytes)); +- SetPageError(pg); +- ClearPageUptodate(pg); +- } else { +- SetPageUptodate(pg); +- } +- +- kunmap(pg); +- +- T(YAFFS_TRACE_OS, +- ("yaffs_commit_write returning %d\n", +- nWritten == nBytes ? 0 : nWritten)); +- +- return nWritten == nBytes ? 0 : nWritten; +-} +-#endif +- +- +-static void yaffs_FillInodeFromObject(struct inode *inode, yaffs_Object *obj) +-{ +- if (inode && obj) { +- +- +- /* Check mode against the variant type and attempt to repair if broken. */ +- __u32 mode = obj->yst_mode; +- switch (obj->variantType) { +- case YAFFS_OBJECT_TYPE_FILE: +- if (!S_ISREG(mode)) { +- obj->yst_mode &= ~S_IFMT; +- obj->yst_mode |= S_IFREG; +- } +- +- break; +- case YAFFS_OBJECT_TYPE_SYMLINK: +- if (!S_ISLNK(mode)) { +- obj->yst_mode &= ~S_IFMT; +- obj->yst_mode |= S_IFLNK; +- } +- +- break; +- case YAFFS_OBJECT_TYPE_DIRECTORY: +- if (!S_ISDIR(mode)) { +- obj->yst_mode &= ~S_IFMT; +- obj->yst_mode |= S_IFDIR; +- } +- +- break; +- case YAFFS_OBJECT_TYPE_UNKNOWN: +- case YAFFS_OBJECT_TYPE_HARDLINK: +- case YAFFS_OBJECT_TYPE_SPECIAL: +- default: +- /* TODO? */ +- break; +- } +- +- inode->i_flags |= S_NOATIME; +- +- inode->i_ino = obj->objectId; +- inode->i_mode = obj->yst_mode; +- inode->i_uid = obj->yst_uid; +- inode->i_gid = obj->yst_gid; +-#if (LINUX_VERSION_CODE < KERNEL_VERSION(2, 6, 19)) +- inode->i_blksize = inode->i_sb->s_blocksize; +-#endif +-#if (LINUX_VERSION_CODE > KERNEL_VERSION(2, 5, 0)) +- +- inode->i_rdev = old_decode_dev(obj->yst_rdev); +- inode->i_atime.tv_sec = (time_t) (obj->yst_atime); +- inode->i_atime.tv_nsec = 0; +- inode->i_mtime.tv_sec = (time_t) obj->yst_mtime; +- inode->i_mtime.tv_nsec = 0; +- inode->i_ctime.tv_sec = (time_t) obj->yst_ctime; +- inode->i_ctime.tv_nsec = 0; +-#else +- inode->i_rdev = obj->yst_rdev; +- inode->i_atime = obj->yst_atime; +- inode->i_mtime = obj->yst_mtime; +- inode->i_ctime = obj->yst_ctime; +-#endif +- inode->i_size = yaffs_GetObjectFileLength(obj); +- inode->i_blocks = (inode->i_size + 511) >> 9; +- +- inode->i_nlink = yaffs_GetObjectLinkCount(obj); +- +- T(YAFFS_TRACE_OS, +- ("yaffs_FillInode mode %x uid %d gid %d size %d count %d\n", +- inode->i_mode, inode->i_uid, inode->i_gid, +- (int)inode->i_size, atomic_read(&inode->i_count))); +- +- switch (obj->yst_mode & S_IFMT) { +- default: /* fifo, device or socket */ +-#if (LINUX_VERSION_CODE > KERNEL_VERSION(2, 5, 0)) +- init_special_inode(inode, obj->yst_mode, +- old_decode_dev(obj->yst_rdev)); +-#else +- init_special_inode(inode, obj->yst_mode, +- (dev_t) (obj->yst_rdev)); +-#endif +- break; +- case S_IFREG: /* file */ +- inode->i_op = &yaffs_file_inode_operations; +- inode->i_fop = &yaffs_file_operations; +- inode->i_mapping->a_ops = +- &yaffs_file_address_operations; +- break; +- case S_IFDIR: /* directory */ +- inode->i_op = &yaffs_dir_inode_operations; +- inode->i_fop = &yaffs_dir_operations; +- break; +- case S_IFLNK: /* symlink */ +- inode->i_op = &yaffs_symlink_inode_operations; +- break; +- } +- +- yaffs_InodeToObjectLV(inode) = obj; +- +- obj->myInode = inode; +- +- } else { +- T(YAFFS_TRACE_OS, +- ("yaffs_FileInode invalid parameters\n")); +- } +- +-} +- +-struct inode *yaffs_get_inode(struct super_block *sb, int mode, int dev, +- yaffs_Object *obj) +-{ +- struct inode *inode; +- +- if (!sb) { +- T(YAFFS_TRACE_OS, +- ("yaffs_get_inode for NULL super_block!!\n")); +- return NULL; +- +- } +- +- if (!obj) { +- T(YAFFS_TRACE_OS, +- ("yaffs_get_inode for NULL object!!\n")); +- return NULL; +- +- } +- +- T(YAFFS_TRACE_OS, +- ("yaffs_get_inode for object %d\n", obj->objectId)); +- +- inode = Y_IGET(sb, obj->objectId); +- if (IS_ERR(inode)) +- return NULL; +- +- /* NB Side effect: iget calls back to yaffs_read_inode(). */ +- /* iget also increments the inode's i_count */ +- /* NB You can't be holding grossLock or deadlock will happen! */ +- +- return inode; +-} +- +-static ssize_t yaffs_file_write(struct file *f, const char *buf, size_t n, +- loff_t *pos) +-{ +- yaffs_Object *obj; +- int nWritten, ipos; +- struct inode *inode; +- yaffs_Device *dev; +- +- obj = yaffs_DentryToObject(f->f_dentry); +- +- dev = obj->myDev; +- +- yaffs_GrossLock(dev); +- +- inode = f->f_dentry->d_inode; +- +- if (!S_ISBLK(inode->i_mode) && f->f_flags & O_APPEND) +- ipos = inode->i_size; +- else +- ipos = *pos; +- +- if (!obj) +- T(YAFFS_TRACE_OS, +- ("yaffs_file_write: hey obj is null!\n")); +- else +- T(YAFFS_TRACE_OS, +- ("yaffs_file_write about to write writing %zu bytes" +- "to object %d at %d\n", +- n, obj->objectId, ipos)); +- +- nWritten = yaffs_WriteDataToFile(obj, buf, ipos, n, 0); +- +- T(YAFFS_TRACE_OS, +- ("yaffs_file_write writing %zu bytes, %d written at %d\n", +- n, nWritten, ipos)); +- +- if (nWritten > 0) { +- ipos += nWritten; +- *pos = ipos; +- if (ipos > inode->i_size) { +- inode->i_size = ipos; +- inode->i_blocks = (ipos + 511) >> 9; +- +- T(YAFFS_TRACE_OS, +- ("yaffs_file_write size updated to %d bytes, " +- "%d blocks\n", +- ipos, (int)(inode->i_blocks))); +- } +- +- } +- yaffs_GrossUnlock(dev); +- return nWritten == 0 ? -ENOSPC : nWritten; +-} +- +-/* Space holding and freeing is done to ensure we have space available for write_begin/end */ +-/* For now we just assume few parallel writes and check against a small number. */ +-/* Todo: need to do this with a counter to handle parallel reads better */ +- +-static ssize_t yaffs_hold_space(struct file *f) +-{ +- yaffs_Object *obj; +- yaffs_Device *dev; +- +- int nFreeChunks; +- +- +- obj = yaffs_DentryToObject(f->f_dentry); +- +- dev = obj->myDev; +- +- yaffs_GrossLock(dev); +- +- nFreeChunks = yaffs_GetNumberOfFreeChunks(dev); +- +- yaffs_GrossUnlock(dev); +- +- return (nFreeChunks > 20) ? 1 : 0; +-} +- +-static void yaffs_release_space(struct file *f) +-{ +- yaffs_Object *obj; +- yaffs_Device *dev; +- +- +- obj = yaffs_DentryToObject(f->f_dentry); +- +- dev = obj->myDev; +- +- yaffs_GrossLock(dev); +- +- +- yaffs_GrossUnlock(dev); +-} +- +-static int yaffs_readdir(struct file *f, void *dirent, filldir_t filldir) +-{ +- yaffs_Object *obj; +- yaffs_Device *dev; +- struct inode *inode = f->f_dentry->d_inode; +- unsigned long offset, curoffs; +- struct ylist_head *i; +- yaffs_Object *l; +- +- char name[YAFFS_MAX_NAME_LENGTH + 1]; +- +- obj = yaffs_DentryToObject(f->f_dentry); +- dev = obj->myDev; +- +- yaffs_GrossLock(dev); +- +- offset = f->f_pos; +- +- T(YAFFS_TRACE_OS, ("yaffs_readdir: starting at %d\n", (int)offset)); +- +- if (offset == 0) { +- T(YAFFS_TRACE_OS, +- ("yaffs_readdir: entry . ino %d \n", +- (int)inode->i_ino)); +- if (filldir(dirent, ".", 1, offset, inode->i_ino, DT_DIR) < 0) +- goto out; +- offset++; +- f->f_pos++; +- } +- if (offset == 1) { +- T(YAFFS_TRACE_OS, +- ("yaffs_readdir: entry .. ino %d \n", +- (int)f->f_dentry->d_parent->d_inode->i_ino)); +- if (filldir(dirent, "..", 2, offset, +- f->f_dentry->d_parent->d_inode->i_ino, DT_DIR) < 0) +- goto out; +- offset++; +- f->f_pos++; +- } +- +- curoffs = 1; +- +- /* If the directory has changed since the open or last call to +- readdir, rewind to after the 2 canned entries. */ +- +- if (f->f_version != inode->i_version) { +- offset = 2; +- f->f_pos = offset; +- f->f_version = inode->i_version; +- } +- +- ylist_for_each(i, &obj->variant.directoryVariant.children) { +- curoffs++; +- if (curoffs >= offset) { +- l = ylist_entry(i, yaffs_Object, siblings); +- +- yaffs_GetObjectName(l, name, +- YAFFS_MAX_NAME_LENGTH + 1); +- T(YAFFS_TRACE_OS, +- ("yaffs_readdir: %s inode %d\n", name, +- yaffs_GetObjectInode(l))); +- +- if (filldir(dirent, +- name, +- strlen(name), +- offset, +- yaffs_GetObjectInode(l), +- yaffs_GetObjectType(l)) < 0) +- goto up_and_out; +- +- offset++; +- f->f_pos++; +- } +- } +- +-up_and_out: +-out: +- yaffs_GrossUnlock(dev); +- +- return 0; +-} +- +-/* +- * File creation. Allocate an inode, and we're done.. +- */ +- +-#if LINUX_VERSION_CODE < KERNEL_VERSION(2, 6, 29) +-#define YCRED(x) x +-#else +-#define YCRED(x) (x->cred) +-#endif +- +-#if (LINUX_VERSION_CODE > KERNEL_VERSION(2, 5, 0)) +-static int yaffs_mknod(struct inode *dir, struct dentry *dentry, int mode, +- dev_t rdev) +-#else +-static int yaffs_mknod(struct inode *dir, struct dentry *dentry, int mode, +- int rdev) +-#endif +-{ +- struct inode *inode; +- +- yaffs_Object *obj = NULL; +- yaffs_Device *dev; +- +- yaffs_Object *parent = yaffs_InodeToObject(dir); +- +- int error = -ENOSPC; +- uid_t uid = YCRED(current)->fsuid; +- gid_t gid = (dir->i_mode & S_ISGID) ? dir->i_gid : YCRED(current)->fsgid; +- +- if ((dir->i_mode & S_ISGID) && S_ISDIR(mode)) +- mode |= S_ISGID; +- +- if (parent) { +- T(YAFFS_TRACE_OS, +- ("yaffs_mknod: parent object %d type %d\n", +- parent->objectId, parent->variantType)); +- } else { +- T(YAFFS_TRACE_OS, +- ("yaffs_mknod: could not get parent object\n")); +- return -EPERM; +- } +- +- T(YAFFS_TRACE_OS, ("yaffs_mknod: making oject for %s, " +- "mode %x dev %x\n", +- dentry->d_name.name, mode, rdev)); +- +- dev = parent->myDev; +- +- yaffs_GrossLock(dev); +- +- switch (mode & S_IFMT) { +- default: +- /* Special (socket, fifo, device...) */ +- T(YAFFS_TRACE_OS, ("yaffs_mknod: making special\n")); +-#if (LINUX_VERSION_CODE > KERNEL_VERSION(2, 5, 0)) +- obj = yaffs_MknodSpecial(parent, dentry->d_name.name, mode, uid, +- gid, old_encode_dev(rdev)); +-#else +- obj = yaffs_MknodSpecial(parent, dentry->d_name.name, mode, uid, +- gid, rdev); +-#endif +- break; +- case S_IFREG: /* file */ +- T(YAFFS_TRACE_OS, ("yaffs_mknod: making file\n")); +- obj = yaffs_MknodFile(parent, dentry->d_name.name, mode, uid, +- gid); +- break; +- case S_IFDIR: /* directory */ +- T(YAFFS_TRACE_OS, +- ("yaffs_mknod: making directory\n")); +- obj = yaffs_MknodDirectory(parent, dentry->d_name.name, mode, +- uid, gid); +- break; +- case S_IFLNK: /* symlink */ +- T(YAFFS_TRACE_OS, ("yaffs_mknod: making symlink\n")); +- obj = NULL; /* Do we ever get here? */ +- break; +- } +- +- /* Can not call yaffs_get_inode() with gross lock held */ +- yaffs_GrossUnlock(dev); +- +- if (obj) { +- inode = yaffs_get_inode(dir->i_sb, mode, rdev, obj); +- d_instantiate(dentry, inode); +- T(YAFFS_TRACE_OS, +- ("yaffs_mknod created object %d count = %d\n", +- obj->objectId, atomic_read(&inode->i_count))); +- error = 0; +- } else { +- T(YAFFS_TRACE_OS, +- ("yaffs_mknod failed making object\n")); +- error = -ENOMEM; +- } +- +- return error; +-} +- +-static int yaffs_mkdir(struct inode *dir, struct dentry *dentry, int mode) +-{ +- int retVal; +- T(YAFFS_TRACE_OS, ("yaffs_mkdir\n")); +- retVal = yaffs_mknod(dir, dentry, mode | S_IFDIR, 0); +- return retVal; +-} +- +-#if (LINUX_VERSION_CODE > KERNEL_VERSION(2, 5, 0)) +-static int yaffs_create(struct inode *dir, struct dentry *dentry, int mode, +- struct nameidata *n) +-#else +-static int yaffs_create(struct inode *dir, struct dentry *dentry, int mode) +-#endif +-{ +- T(YAFFS_TRACE_OS, ("yaffs_create\n")); +- return yaffs_mknod(dir, dentry, mode | S_IFREG, 0); +-} +- +-static int yaffs_unlink(struct inode *dir, struct dentry *dentry) +-{ +- int retVal; +- +- yaffs_Device *dev; +- +- T(YAFFS_TRACE_OS, +- ("yaffs_unlink %d:%s\n", (int)(dir->i_ino), +- dentry->d_name.name)); +- +- dev = yaffs_InodeToObject(dir)->myDev; +- +- yaffs_GrossLock(dev); +- +- retVal = yaffs_Unlink(yaffs_InodeToObject(dir), dentry->d_name.name); +- +- if (retVal == YAFFS_OK) { +- dentry->d_inode->i_nlink--; +- dir->i_version++; +- yaffs_GrossUnlock(dev); +- mark_inode_dirty(dentry->d_inode); +- return 0; +- } +- yaffs_GrossUnlock(dev); +- return -ENOTEMPTY; +-} +- +-/* +- * Create a link... +- */ +-static int yaffs_link(struct dentry *old_dentry, struct inode *dir, +- struct dentry *dentry) +-{ +- struct inode *inode = old_dentry->d_inode; +- yaffs_Object *obj = NULL; +- yaffs_Object *link = NULL; +- yaffs_Device *dev; +- +- T(YAFFS_TRACE_OS, ("yaffs_link\n")); +- +- obj = yaffs_InodeToObject(inode); +- dev = obj->myDev; +- +- yaffs_GrossLock(dev); +- +- if (!S_ISDIR(inode->i_mode)) /* Don't link directories */ +- link = yaffs_Link(yaffs_InodeToObject(dir), dentry->d_name.name, +- obj); +- +- if (link) { +- old_dentry->d_inode->i_nlink = yaffs_GetObjectLinkCount(obj); +- d_instantiate(dentry, old_dentry->d_inode); +- atomic_inc(&old_dentry->d_inode->i_count); +- T(YAFFS_TRACE_OS, +- ("yaffs_link link count %d i_count %d\n", +- old_dentry->d_inode->i_nlink, +- atomic_read(&old_dentry->d_inode->i_count))); +- } +- +- yaffs_GrossUnlock(dev); +- +- if (link) +- return 0; +- +- return -EPERM; +-} +- +-static int yaffs_symlink(struct inode *dir, struct dentry *dentry, +- const char *symname) +-{ +- yaffs_Object *obj; +- yaffs_Device *dev; +- uid_t uid = YCRED(current)->fsuid; +- gid_t gid = (dir->i_mode & S_ISGID) ? dir->i_gid : YCRED(current)->fsgid; +- +- T(YAFFS_TRACE_OS, ("yaffs_symlink\n")); +- +- dev = yaffs_InodeToObject(dir)->myDev; +- yaffs_GrossLock(dev); +- obj = yaffs_MknodSymLink(yaffs_InodeToObject(dir), dentry->d_name.name, +- S_IFLNK | S_IRWXUGO, uid, gid, symname); +- yaffs_GrossUnlock(dev); +- +- if (obj) { +- struct inode *inode; +- +- inode = yaffs_get_inode(dir->i_sb, obj->yst_mode, 0, obj); +- d_instantiate(dentry, inode); +- T(YAFFS_TRACE_OS, ("symlink created OK\n")); +- return 0; +- } else { +- T(YAFFS_TRACE_OS, ("symlink not created\n")); +- } +- +- return -ENOMEM; +-} +- +-static int yaffs_sync_object(struct file *file, struct dentry *dentry, +- int datasync) +-{ +- +- yaffs_Object *obj; +- yaffs_Device *dev; +- +- obj = yaffs_DentryToObject(dentry); +- +- dev = obj->myDev; +- +- T(YAFFS_TRACE_OS, ("yaffs_sync_object\n")); +- yaffs_GrossLock(dev); +- yaffs_FlushFile(obj, 1); +- yaffs_GrossUnlock(dev); +- return 0; +-} +- +-/* +- * The VFS layer already does all the dentry stuff for rename. +- * +- * NB: POSIX says you can rename an object over an old object of the same name +- */ +-static int yaffs_rename(struct inode *old_dir, struct dentry *old_dentry, +- struct inode *new_dir, struct dentry *new_dentry) +-{ +- yaffs_Device *dev; +- int retVal = YAFFS_FAIL; +- yaffs_Object *target; +- +- T(YAFFS_TRACE_OS, ("yaffs_rename\n")); +- dev = yaffs_InodeToObject(old_dir)->myDev; +- +- yaffs_GrossLock(dev); +- +- /* Check if the target is an existing directory that is not empty. */ +- target = yaffs_FindObjectByName(yaffs_InodeToObject(new_dir), +- new_dentry->d_name.name); +- +- +- +- if (target && target->variantType == YAFFS_OBJECT_TYPE_DIRECTORY && +- !ylist_empty(&target->variant.directoryVariant.children)) { +- +- T(YAFFS_TRACE_OS, ("target is non-empty dir\n")); +- +- retVal = YAFFS_FAIL; +- } else { +- /* Now does unlinking internally using shadowing mechanism */ +- T(YAFFS_TRACE_OS, ("calling yaffs_RenameObject\n")); +- +- retVal = yaffs_RenameObject(yaffs_InodeToObject(old_dir), +- old_dentry->d_name.name, +- yaffs_InodeToObject(new_dir), +- new_dentry->d_name.name); +- } +- yaffs_GrossUnlock(dev); +- +- if (retVal == YAFFS_OK) { +- if (target) { +- new_dentry->d_inode->i_nlink--; +- mark_inode_dirty(new_dentry->d_inode); +- } +- +- return 0; +- } else { +- return -ENOTEMPTY; +- } +-} +- +-static int yaffs_setattr(struct dentry *dentry, struct iattr *attr) +-{ +- struct inode *inode = dentry->d_inode; +- int error; +- yaffs_Device *dev; +- +- T(YAFFS_TRACE_OS, +- ("yaffs_setattr of object %d\n", +- yaffs_InodeToObject(inode)->objectId)); +- +- error = inode_change_ok(inode, attr); +- if (error == 0) { +- dev = yaffs_InodeToObject(inode)->myDev; +- yaffs_GrossLock(dev); +- if (yaffs_SetAttributes(yaffs_InodeToObject(inode), attr) == +- YAFFS_OK) { +- error = 0; +- } else { +- error = -EPERM; +- } +- yaffs_GrossUnlock(dev); +- if (!error) +- error = inode_setattr(inode, attr); +- } +- return error; +-} +- +-#if (LINUX_VERSION_CODE > KERNEL_VERSION(2, 6, 17)) +-static int yaffs_statfs(struct dentry *dentry, struct kstatfs *buf) +-{ +- yaffs_Device *dev = yaffs_DentryToObject(dentry)->myDev; +- struct super_block *sb = dentry->d_sb; +-#elif (LINUX_VERSION_CODE > KERNEL_VERSION(2, 5, 0)) +-static int yaffs_statfs(struct super_block *sb, struct kstatfs *buf) +-{ +- yaffs_Device *dev = yaffs_SuperToDevice(sb); +-#else +-static int yaffs_statfs(struct super_block *sb, struct statfs *buf) +-{ +- yaffs_Device *dev = yaffs_SuperToDevice(sb); +-#endif +- +- T(YAFFS_TRACE_OS, ("yaffs_statfs\n")); +- +- yaffs_GrossLock(dev); +- +- buf->f_type = YAFFS_MAGIC; +- buf->f_bsize = sb->s_blocksize; +- buf->f_namelen = 255; +- +- if (dev->nDataBytesPerChunk & (dev->nDataBytesPerChunk - 1)) { +- /* Do this if chunk size is not a power of 2 */ +- +- uint64_t bytesInDev; +- uint64_t bytesFree; +- +- bytesInDev = ((uint64_t)((dev->endBlock - dev->startBlock + 1))) * +- ((uint64_t)(dev->nChunksPerBlock * dev->nDataBytesPerChunk)); +- +- do_div(bytesInDev, sb->s_blocksize); /* bytesInDev becomes the number of blocks */ +- buf->f_blocks = bytesInDev; +- +- bytesFree = ((uint64_t)(yaffs_GetNumberOfFreeChunks(dev))) * +- ((uint64_t)(dev->nDataBytesPerChunk)); +- +- do_div(bytesFree, sb->s_blocksize); +- +- buf->f_bfree = bytesFree; +- +- } else if (sb->s_blocksize > dev->nDataBytesPerChunk) { +- +- buf->f_blocks = +- (dev->endBlock - dev->startBlock + 1) * +- dev->nChunksPerBlock / +- (sb->s_blocksize / dev->nDataBytesPerChunk); +- buf->f_bfree = +- yaffs_GetNumberOfFreeChunks(dev) / +- (sb->s_blocksize / dev->nDataBytesPerChunk); +- } else { +- buf->f_blocks = +- (dev->endBlock - dev->startBlock + 1) * +- dev->nChunksPerBlock * +- (dev->nDataBytesPerChunk / sb->s_blocksize); +- +- buf->f_bfree = +- yaffs_GetNumberOfFreeChunks(dev) * +- (dev->nDataBytesPerChunk / sb->s_blocksize); +- } +- +- buf->f_files = 0; +- buf->f_ffree = 0; +- buf->f_bavail = buf->f_bfree; +- +- yaffs_GrossUnlock(dev); +- return 0; +-} +- +- +-static int yaffs_do_sync_fs(struct super_block *sb) +-{ +- +- yaffs_Device *dev = yaffs_SuperToDevice(sb); +- T(YAFFS_TRACE_OS, ("yaffs_do_sync_fs\n")); +- +- if (sb->s_dirt) { +- yaffs_GrossLock(dev); +- +- if (dev) { +- yaffs_FlushEntireDeviceCache(dev); +- yaffs_CheckpointSave(dev); +- } +- +- yaffs_GrossUnlock(dev); +- +- sb->s_dirt = 0; +- } +- return 0; +-} +- +- +-#if (LINUX_VERSION_CODE > KERNEL_VERSION(2, 6, 17)) +-static void yaffs_write_super(struct super_block *sb) +-#else +-static int yaffs_write_super(struct super_block *sb) +-#endif +-{ +- +- T(YAFFS_TRACE_OS, ("yaffs_write_super\n")); +- if (yaffs_auto_checkpoint >= 2) +- yaffs_do_sync_fs(sb); +-#if (LINUX_VERSION_CODE < KERNEL_VERSION(2, 6, 18)) +- return 0; +-#endif +-} +- +- +-#if (LINUX_VERSION_CODE > KERNEL_VERSION(2, 6, 17)) +-static int yaffs_sync_fs(struct super_block *sb, int wait) +-#else +-static int yaffs_sync_fs(struct super_block *sb) +-#endif +-{ +- T(YAFFS_TRACE_OS, ("yaffs_sync_fs\n")); +- +- if (yaffs_auto_checkpoint >= 1) +- yaffs_do_sync_fs(sb); +- +- return 0; +-} +- +-#ifdef YAFFS_USE_OWN_IGET +- +-static struct inode *yaffs_iget(struct super_block *sb, unsigned long ino) +-{ +- struct inode *inode; +- yaffs_Object *obj; +- yaffs_Device *dev = yaffs_SuperToDevice(sb); +- +- T(YAFFS_TRACE_OS, +- ("yaffs_iget for %lu\n", ino)); +- +- inode = iget_locked(sb, ino); +- if (!inode) +- return ERR_PTR(-ENOMEM); +- if (!(inode->i_state & I_NEW)) +- return inode; +- +- /* NB This is called as a side effect of other functions, but +- * we had to release the lock to prevent deadlocks, so +- * need to lock again. +- */ +- +- yaffs_GrossLock(dev); +- +- obj = yaffs_FindObjectByNumber(dev, inode->i_ino); +- +- yaffs_FillInodeFromObject(inode, obj); +- +- yaffs_GrossUnlock(dev); +- +- unlock_new_inode(inode); +- return inode; +-} +- +-#else +- +-static void yaffs_read_inode(struct inode *inode) +-{ +- /* NB This is called as a side effect of other functions, but +- * we had to release the lock to prevent deadlocks, so +- * need to lock again. +- */ +- +- yaffs_Object *obj; +- yaffs_Device *dev = yaffs_SuperToDevice(inode->i_sb); +- +- T(YAFFS_TRACE_OS, +- ("yaffs_read_inode for %d\n", (int)inode->i_ino)); +- +- yaffs_GrossLock(dev); +- +- obj = yaffs_FindObjectByNumber(dev, inode->i_ino); +- +- yaffs_FillInodeFromObject(inode, obj); +- +- yaffs_GrossUnlock(dev); +-} +- +-#endif +- +-static YLIST_HEAD(yaffs_dev_list); +- +-#if 0 /* not used */ +-static int yaffs_remount_fs(struct super_block *sb, int *flags, char *data) +-{ +- yaffs_Device *dev = yaffs_SuperToDevice(sb); +- +- if (*flags & MS_RDONLY) { +- struct mtd_info *mtd = yaffs_SuperToDevice(sb)->genericDevice; +- +- T(YAFFS_TRACE_OS, +- ("yaffs_remount_fs: %s: RO\n", dev->name)); +- +- yaffs_GrossLock(dev); +- +- yaffs_FlushEntireDeviceCache(dev); +- +- yaffs_CheckpointSave(dev); +- +- if (mtd->sync) +- mtd->sync(mtd); +- +- yaffs_GrossUnlock(dev); +- } else { +- T(YAFFS_TRACE_OS, +- ("yaffs_remount_fs: %s: RW\n", dev->name)); +- } +- +- return 0; +-} +-#endif +- +-static void yaffs_put_super(struct super_block *sb) +-{ +- yaffs_Device *dev = yaffs_SuperToDevice(sb); +- +- T(YAFFS_TRACE_OS, ("yaffs_put_super\n")); +- +- yaffs_GrossLock(dev); +- +- yaffs_FlushEntireDeviceCache(dev); +- +- yaffs_CheckpointSave(dev); +- +- if (dev->putSuperFunc) +- dev->putSuperFunc(sb); +- +- yaffs_Deinitialise(dev); +- +- yaffs_GrossUnlock(dev); +- +- /* we assume this is protected by lock_kernel() in mount/umount */ +- ylist_del(&dev->devList); +- +- if (dev->spareBuffer) { +- YFREE(dev->spareBuffer); +- dev->spareBuffer = NULL; +- } +- +- kfree(dev); +-} +- +- +-static void yaffs_MTDPutSuper(struct super_block *sb) +-{ +- struct mtd_info *mtd = yaffs_SuperToDevice(sb)->genericDevice; +- +- if (mtd->sync) +- mtd->sync(mtd); +- +- put_mtd_device(mtd); +-} +- +- +-static void yaffs_MarkSuperBlockDirty(void *vsb) +-{ +- struct super_block *sb = (struct super_block *)vsb; +- +- T(YAFFS_TRACE_OS, ("yaffs_MarkSuperBlockDirty() sb = %p\n", sb)); +- if (sb) +- sb->s_dirt = 1; +-} +- +-typedef struct { +- int inband_tags; +- int skip_checkpoint_read; +- int skip_checkpoint_write; +- int no_cache; +-} yaffs_options; +- +-#define MAX_OPT_LEN 20 +-static int yaffs_parse_options(yaffs_options *options, const char *options_str) +-{ +- char cur_opt[MAX_OPT_LEN + 1]; +- int p; +- int error = 0; +- +- /* Parse through the options which is a comma seperated list */ +- +- while (options_str && *options_str && !error) { +- memset(cur_opt, 0, MAX_OPT_LEN + 1); +- p = 0; +- +- while (*options_str && *options_str != ',') { +- if (p < MAX_OPT_LEN) { +- cur_opt[p] = *options_str; +- p++; +- } +- options_str++; +- } +- +- if (!strcmp(cur_opt, "inband-tags")) +- options->inband_tags = 1; +- else if (!strcmp(cur_opt, "no-cache")) +- options->no_cache = 1; +- else if (!strcmp(cur_opt, "no-checkpoint-read")) +- options->skip_checkpoint_read = 1; +- else if (!strcmp(cur_opt, "no-checkpoint-write")) +- options->skip_checkpoint_write = 1; +- else if (!strcmp(cur_opt, "no-checkpoint")) { +- options->skip_checkpoint_read = 1; +- options->skip_checkpoint_write = 1; +- } else { +- printk(KERN_INFO "yaffs: Bad mount option \"%s\"\n", +- cur_opt); +- error = 1; +- } +- } +- +- return error; +-} +- +-static struct super_block *yaffs_internal_read_super(int yaffsVersion, +- struct super_block *sb, +- void *data, int silent) +-{ +- int nBlocks; +- struct inode *inode = NULL; +- struct dentry *root; +- yaffs_Device *dev = 0; +- char devname_buf[BDEVNAME_SIZE + 1]; +- struct mtd_info *mtd; +- int err; +- char *data_str = (char *)data; +- +- yaffs_options options; +- +- sb->s_magic = YAFFS_MAGIC; +- sb->s_op = &yaffs_super_ops; +- sb->s_flags |= MS_NOATIME; +- +- if (!sb) +- printk(KERN_INFO "yaffs: sb is NULL\n"); +- else if (!sb->s_dev) +- printk(KERN_INFO "yaffs: sb->s_dev is NULL\n"); +- else if (!yaffs_devname(sb, devname_buf)) +- printk(KERN_INFO "yaffs: devname is NULL\n"); +- else +- printk(KERN_INFO "yaffs: dev is %d name is \"%s\"\n", +- sb->s_dev, +- yaffs_devname(sb, devname_buf)); +- +- if (!data_str) +- data_str = ""; +- +- printk(KERN_INFO "yaffs: passed flags \"%s\"\n", data_str); +- +- memset(&options, 0, sizeof(options)); +- +- if (yaffs_parse_options(&options, data_str)) { +- /* Option parsing failed */ +- return NULL; +- } +- +- +- sb->s_blocksize = PAGE_CACHE_SIZE; +- sb->s_blocksize_bits = PAGE_CACHE_SHIFT; +- T(YAFFS_TRACE_OS, ("yaffs_read_super: Using yaffs%d\n", yaffsVersion)); +- T(YAFFS_TRACE_OS, +- ("yaffs_read_super: block size %d\n", (int)(sb->s_blocksize))); +- +-#ifdef CONFIG_YAFFS_DISABLE_WRITE_VERIFY +- T(YAFFS_TRACE_OS, +- ("yaffs: Write verification disabled. All guarantees " +- "null and void\n")); +-#endif +- +- T(YAFFS_TRACE_ALWAYS, ("yaffs: Attempting MTD mount on %u.%u, " +- "\"%s\"\n", +- MAJOR(sb->s_dev), MINOR(sb->s_dev), +- yaffs_devname(sb, devname_buf))); +- +- /* Check it's an mtd device..... */ +- if (MAJOR(sb->s_dev) != MTD_BLOCK_MAJOR) +- return NULL; /* This isn't an mtd device */ +- +- /* Get the device */ +- mtd = get_mtd_device(NULL, MINOR(sb->s_dev)); +- if (!mtd) { +- T(YAFFS_TRACE_ALWAYS, +- ("yaffs: MTD device #%u doesn't appear to exist\n", +- MINOR(sb->s_dev))); +- return NULL; +- } +- /* Check it's NAND */ +- if (mtd->type != MTD_NANDFLASH) { +- T(YAFFS_TRACE_ALWAYS, +- ("yaffs: MTD device is not NAND it's type %d\n", mtd->type)); +- return NULL; +- } +- +- T(YAFFS_TRACE_OS, (" erase %p\n", mtd->erase)); +- T(YAFFS_TRACE_OS, (" read %p\n", mtd->read)); +- T(YAFFS_TRACE_OS, (" write %p\n", mtd->write)); +- T(YAFFS_TRACE_OS, (" readoob %p\n", mtd->read_oob)); +- T(YAFFS_TRACE_OS, (" writeoob %p\n", mtd->write_oob)); +- T(YAFFS_TRACE_OS, (" block_isbad %p\n", mtd->block_isbad)); +- T(YAFFS_TRACE_OS, (" block_markbad %p\n", mtd->block_markbad)); +- T(YAFFS_TRACE_OS, (" %s %d\n", WRITE_SIZE_STR, WRITE_SIZE(mtd))); +- T(YAFFS_TRACE_OS, (" oobsize %d\n", mtd->oobsize)); +- T(YAFFS_TRACE_OS, (" erasesize %d\n", mtd->erasesize)); +-#if LINUX_VERSION_CODE < KERNEL_VERSION(2, 6, 29) +- T(YAFFS_TRACE_OS, (" size %u\n", mtd->size)); +-#else +- T(YAFFS_TRACE_OS, (" size %lld\n", mtd->size)); +-#endif +- +-#ifdef CONFIG_YAFFS_AUTO_YAFFS2 +- +- if (yaffsVersion == 1 && WRITE_SIZE(mtd) >= 2048) { +- T(YAFFS_TRACE_ALWAYS, ("yaffs: auto selecting yaffs2\n")); +- yaffsVersion = 2; +- } +- +- /* Added NCB 26/5/2006 for completeness */ +- if (yaffsVersion == 2 && !options.inband_tags && WRITE_SIZE(mtd) == 512) { +- T(YAFFS_TRACE_ALWAYS, ("yaffs: auto selecting yaffs1\n")); +- yaffsVersion = 1; +- } +- +-#endif +- +- if (yaffsVersion == 2) { +- /* Check for version 2 style functions */ +- if (!mtd->erase || +- !mtd->block_isbad || +- !mtd->block_markbad || +- !mtd->read || +- !mtd->write || +-#if (LINUX_VERSION_CODE > KERNEL_VERSION(2, 6, 17)) +- !mtd->read_oob || !mtd->write_oob) { +-#else +- !mtd->write_ecc || +- !mtd->read_ecc || !mtd->read_oob || !mtd->write_oob) { +-#endif +- T(YAFFS_TRACE_ALWAYS, +- ("yaffs: MTD device does not support required " +- "functions\n"));; +- return NULL; +- } +- +- if ((WRITE_SIZE(mtd) < YAFFS_MIN_YAFFS2_CHUNK_SIZE || +- mtd->oobsize < YAFFS_MIN_YAFFS2_SPARE_SIZE) && +- !options.inband_tags) { +- T(YAFFS_TRACE_ALWAYS, +- ("yaffs: MTD device does not have the " +- "right page sizes\n")); +- return NULL; +- } +- } else { +- /* Check for V1 style functions */ +- if (!mtd->erase || +- !mtd->read || +- !mtd->write || +-#if (LINUX_VERSION_CODE > KERNEL_VERSION(2, 6, 17)) +- !mtd->read_oob || !mtd->write_oob) { +-#else +- !mtd->write_ecc || +- !mtd->read_ecc || !mtd->read_oob || !mtd->write_oob) { +-#endif +- T(YAFFS_TRACE_ALWAYS, +- ("yaffs: MTD device does not support required " +- "functions\n"));; +- return NULL; +- } +- +- if (WRITE_SIZE(mtd) < YAFFS_BYTES_PER_CHUNK || +- mtd->oobsize != YAFFS_BYTES_PER_SPARE) { +- T(YAFFS_TRACE_ALWAYS, +- ("yaffs: MTD device does not support have the " +- "right page sizes\n")); +- return NULL; +- } +- } +- +- /* OK, so if we got here, we have an MTD that's NAND and looks +- * like it has the right capabilities +- * Set the yaffs_Device up for mtd +- */ +- +-#if (LINUX_VERSION_CODE > KERNEL_VERSION(2, 5, 0)) +- sb->s_fs_info = dev = kmalloc(sizeof(yaffs_Device), GFP_KERNEL); +-#else +- sb->u.generic_sbp = dev = kmalloc(sizeof(yaffs_Device), GFP_KERNEL); +-#endif +- if (!dev) { +- /* Deep shit could not allocate device structure */ +- T(YAFFS_TRACE_ALWAYS, +- ("yaffs_read_super: Failed trying to allocate " +- "yaffs_Device. \n")); +- return NULL; +- } +- +- memset(dev, 0, sizeof(yaffs_Device)); +- dev->genericDevice = mtd; +- dev->name = mtd->name; +- +- /* Set up the memory size parameters.... */ +- +- nBlocks = YCALCBLOCKS(mtd->size, (YAFFS_CHUNKS_PER_BLOCK * YAFFS_BYTES_PER_CHUNK)); +- +- dev->startBlock = 0; +- dev->endBlock = nBlocks - 1; +- dev->nChunksPerBlock = YAFFS_CHUNKS_PER_BLOCK; +- dev->totalBytesPerChunk = YAFFS_BYTES_PER_CHUNK; +- dev->nReservedBlocks = 5; +- dev->nShortOpCaches = (options.no_cache) ? 0 : 10; +- dev->inbandTags = options.inband_tags; +- +- /* ... and the functions. */ +- if (yaffsVersion == 2) { +- dev->writeChunkWithTagsToNAND = +- nandmtd2_WriteChunkWithTagsToNAND; +- dev->readChunkWithTagsFromNAND = +- nandmtd2_ReadChunkWithTagsFromNAND; +- dev->markNANDBlockBad = nandmtd2_MarkNANDBlockBad; +- dev->queryNANDBlock = nandmtd2_QueryNANDBlock; +- dev->spareBuffer = YMALLOC(mtd->oobsize); +- dev->isYaffs2 = 1; +-#if (LINUX_VERSION_CODE > KERNEL_VERSION(2, 6, 17)) +- dev->totalBytesPerChunk = mtd->writesize; +- dev->nChunksPerBlock = mtd->erasesize / mtd->writesize; +-#else +- dev->totalBytesPerChunk = mtd->oobblock; +- dev->nChunksPerBlock = mtd->erasesize / mtd->oobblock; +-#endif +- nBlocks = YCALCBLOCKS(mtd->size, mtd->erasesize); +- +- dev->startBlock = 0; +- dev->endBlock = nBlocks - 1; +- } else { +-#if (LINUX_VERSION_CODE > KERNEL_VERSION(2, 6, 17)) +- /* use the MTD interface in yaffs_mtdif1.c */ +- dev->writeChunkWithTagsToNAND = +- nandmtd1_WriteChunkWithTagsToNAND; +- dev->readChunkWithTagsFromNAND = +- nandmtd1_ReadChunkWithTagsFromNAND; +- dev->markNANDBlockBad = nandmtd1_MarkNANDBlockBad; +- dev->queryNANDBlock = nandmtd1_QueryNANDBlock; +-#else +- dev->writeChunkToNAND = nandmtd_WriteChunkToNAND; +- dev->readChunkFromNAND = nandmtd_ReadChunkFromNAND; +-#endif +- dev->isYaffs2 = 0; +- } +- /* ... and common functions */ +- dev->eraseBlockInNAND = nandmtd_EraseBlockInNAND; +- dev->initialiseNAND = nandmtd_InitialiseNAND; +- +- dev->putSuperFunc = yaffs_MTDPutSuper; +- +- dev->superBlock = (void *)sb; +- dev->markSuperBlockDirty = yaffs_MarkSuperBlockDirty; +- +- +-#ifndef CONFIG_YAFFS_DOES_ECC +- dev->useNANDECC = 1; +-#endif +- +-#ifdef CONFIG_YAFFS_DISABLE_WIDE_TNODES +- dev->wideTnodesDisabled = 1; +-#endif +- +- dev->skipCheckpointRead = options.skip_checkpoint_read; +- dev->skipCheckpointWrite = options.skip_checkpoint_write; +- +- /* we assume this is protected by lock_kernel() in mount/umount */ +- ylist_add_tail(&dev->devList, &yaffs_dev_list); +- +- init_MUTEX(&dev->grossLock); +- +- yaffs_GrossLock(dev); +- +- err = yaffs_GutsInitialise(dev); +- +- T(YAFFS_TRACE_OS, +- ("yaffs_read_super: guts initialised %s\n", +- (err == YAFFS_OK) ? "OK" : "FAILED")); +- +- /* Release lock before yaffs_get_inode() */ +- yaffs_GrossUnlock(dev); +- +- /* Create root inode */ +- if (err == YAFFS_OK) +- inode = yaffs_get_inode(sb, S_IFDIR | 0755, 0, +- yaffs_Root(dev)); +- +- if (!inode) +- return NULL; +- +- inode->i_op = &yaffs_dir_inode_operations; +- inode->i_fop = &yaffs_dir_operations; +- +- T(YAFFS_TRACE_OS, ("yaffs_read_super: got root inode\n")); +- +- root = d_alloc_root(inode); +- +- T(YAFFS_TRACE_OS, ("yaffs_read_super: d_alloc_root done\n")); +- +- if (!root) { +- iput(inode); +- return NULL; +- } +- sb->s_root = root; +- sb->s_dirt = !dev->isCheckpointed; +- T(YAFFS_TRACE_ALWAYS, +- ("yaffs_read_super: isCheckpointed %d\n", dev->isCheckpointed)); +- +- T(YAFFS_TRACE_OS, ("yaffs_read_super: done\n")); +- return sb; +-} +- +- +-#if (LINUX_VERSION_CODE > KERNEL_VERSION(2, 5, 0)) +-static int yaffs_internal_read_super_mtd(struct super_block *sb, void *data, +- int silent) +-{ +- return yaffs_internal_read_super(1, sb, data, silent) ? 0 : -EINVAL; +-} +- +-#if (LINUX_VERSION_CODE > KERNEL_VERSION(2, 6, 17)) +-static int yaffs_read_super(struct file_system_type *fs, +- int flags, const char *dev_name, +- void *data, struct vfsmount *mnt) +-{ +- +- return get_sb_bdev(fs, flags, dev_name, data, +- yaffs_internal_read_super_mtd, mnt); +-} +-#else +-static struct super_block *yaffs_read_super(struct file_system_type *fs, +- int flags, const char *dev_name, +- void *data) +-{ +- +- return get_sb_bdev(fs, flags, dev_name, data, +- yaffs_internal_read_super_mtd); +-} +-#endif +- +-static struct file_system_type yaffs_fs_type = { +- .owner = THIS_MODULE, +- .name = "yaffs", +- .get_sb = yaffs_read_super, +- .kill_sb = kill_block_super, +- .fs_flags = FS_REQUIRES_DEV, +-}; +-#else +-static struct super_block *yaffs_read_super(struct super_block *sb, void *data, +- int silent) +-{ +- return yaffs_internal_read_super(1, sb, data, silent); +-} +- +-static DECLARE_FSTYPE(yaffs_fs_type, "yaffs", yaffs_read_super, +- FS_REQUIRES_DEV); +-#endif +- +- +-#ifdef CONFIG_YAFFS_YAFFS2 +- +-#if (LINUX_VERSION_CODE > KERNEL_VERSION(2, 5, 0)) +-static int yaffs2_internal_read_super_mtd(struct super_block *sb, void *data, +- int silent) +-{ +- return yaffs_internal_read_super(2, sb, data, silent) ? 0 : -EINVAL; +-} +- +-#if (LINUX_VERSION_CODE > KERNEL_VERSION(2, 6, 17)) +-static int yaffs2_read_super(struct file_system_type *fs, +- int flags, const char *dev_name, void *data, +- struct vfsmount *mnt) +-{ +- return get_sb_bdev(fs, flags, dev_name, data, +- yaffs2_internal_read_super_mtd, mnt); +-} +-#else +-static struct super_block *yaffs2_read_super(struct file_system_type *fs, +- int flags, const char *dev_name, +- void *data) +-{ +- +- return get_sb_bdev(fs, flags, dev_name, data, +- yaffs2_internal_read_super_mtd); +-} +-#endif +- +-static struct file_system_type yaffs2_fs_type = { +- .owner = THIS_MODULE, +- .name = "yaffs2", +- .get_sb = yaffs2_read_super, +- .kill_sb = kill_block_super, +- .fs_flags = FS_REQUIRES_DEV, +-}; +-#else +-static struct super_block *yaffs2_read_super(struct super_block *sb, +- void *data, int silent) +-{ +- return yaffs_internal_read_super(2, sb, data, silent); +-} +- +-static DECLARE_FSTYPE(yaffs2_fs_type, "yaffs2", yaffs2_read_super, +- FS_REQUIRES_DEV); +-#endif +- +-#endif /* CONFIG_YAFFS_YAFFS2 */ +- +-static struct proc_dir_entry *my_proc_entry; +- +-static char *yaffs_dump_dev(char *buf, yaffs_Device * dev) +-{ +- buf += sprintf(buf, "startBlock......... %d\n", dev->startBlock); +- buf += sprintf(buf, "endBlock........... %d\n", dev->endBlock); +- buf += sprintf(buf, "totalBytesPerChunk. %d\n", dev->totalBytesPerChunk); +- buf += sprintf(buf, "nDataBytesPerChunk. %d\n", dev->nDataBytesPerChunk); +- buf += sprintf(buf, "chunkGroupBits..... %d\n", dev->chunkGroupBits); +- buf += sprintf(buf, "chunkGroupSize..... %d\n", dev->chunkGroupSize); +- buf += sprintf(buf, "nErasedBlocks...... %d\n", dev->nErasedBlocks); +- buf += sprintf(buf, "nReservedBlocks.... %d\n", dev->nReservedBlocks); +- buf += sprintf(buf, "blocksInCheckpoint. %d\n", dev->blocksInCheckpoint); +- buf += sprintf(buf, "nTnodesCreated..... %d\n", dev->nTnodesCreated); +- buf += sprintf(buf, "nFreeTnodes........ %d\n", dev->nFreeTnodes); +- buf += sprintf(buf, "nObjectsCreated.... %d\n", dev->nObjectsCreated); +- buf += sprintf(buf, "nFreeObjects....... %d\n", dev->nFreeObjects); +- buf += sprintf(buf, "nFreeChunks........ %d\n", dev->nFreeChunks); +- buf += sprintf(buf, "nPageWrites........ %d\n", dev->nPageWrites); +- buf += sprintf(buf, "nPageReads......... %d\n", dev->nPageReads); +- buf += sprintf(buf, "nBlockErasures..... %d\n", dev->nBlockErasures); +- buf += sprintf(buf, "nGCCopies.......... %d\n", dev->nGCCopies); +- buf += sprintf(buf, "garbageCollections. %d\n", dev->garbageCollections); +- buf += sprintf(buf, "passiveGCs......... %d\n", +- dev->passiveGarbageCollections); +- buf += sprintf(buf, "nRetriedWrites..... %d\n", dev->nRetriedWrites); +- buf += sprintf(buf, "nShortOpCaches..... %d\n", dev->nShortOpCaches); +- buf += sprintf(buf, "nRetireBlocks...... %d\n", dev->nRetiredBlocks); +- buf += sprintf(buf, "eccFixed........... %d\n", dev->eccFixed); +- buf += sprintf(buf, "eccUnfixed......... %d\n", dev->eccUnfixed); +- buf += sprintf(buf, "tagsEccFixed....... %d\n", dev->tagsEccFixed); +- buf += sprintf(buf, "tagsEccUnfixed..... %d\n", dev->tagsEccUnfixed); +- buf += sprintf(buf, "cacheHits.......... %d\n", dev->cacheHits); +- buf += sprintf(buf, "nDeletedFiles...... %d\n", dev->nDeletedFiles); +- buf += sprintf(buf, "nUnlinkedFiles..... %d\n", dev->nUnlinkedFiles); +- buf += +- sprintf(buf, "nBackgroudDeletions %d\n", dev->nBackgroundDeletions); +- buf += sprintf(buf, "useNANDECC......... %d\n", dev->useNANDECC); +- buf += sprintf(buf, "isYaffs2........... %d\n", dev->isYaffs2); +- buf += sprintf(buf, "inbandTags......... %d\n", dev->inbandTags); +- +- return buf; +-} +- +-static int yaffs_proc_read(char *page, +- char **start, +- off_t offset, int count, int *eof, void *data) +-{ +- struct ylist_head *item; +- char *buf = page; +- int step = offset; +- int n = 0; +- +- /* Get proc_file_read() to step 'offset' by one on each sucessive call. +- * We use 'offset' (*ppos) to indicate where we are in devList. +- * This also assumes the user has posted a read buffer large +- * enough to hold the complete output; but that's life in /proc. +- */ +- +- *(int *)start = 1; +- +- /* Print header first */ +- if (step == 0) { +- buf += sprintf(buf, "YAFFS built:" __DATE__ " " __TIME__ +- "\n%s\n%s\n", yaffs_fs_c_version, +- yaffs_guts_c_version); +- } +- +- /* hold lock_kernel while traversing yaffs_dev_list */ +- lock_kernel(); +- +- /* Locate and print the Nth entry. Order N-squared but N is small. */ +- ylist_for_each(item, &yaffs_dev_list) { +- yaffs_Device *dev = ylist_entry(item, yaffs_Device, devList); +- if (n < step) { +- n++; +- continue; +- } +- buf += sprintf(buf, "\nDevice %d \"%s\"\n", n, dev->name); +- buf = yaffs_dump_dev(buf, dev); +- break; +- } +- unlock_kernel(); +- +- return buf - page < count ? buf - page : count; +-} +- +-/** +- * Set the verbosity of the warnings and error messages. +- * +- * Note that the names can only be a..z or _ with the current code. +- */ +- +-static struct { +- char *mask_name; +- unsigned mask_bitfield; +-} mask_flags[] = { +- {"allocate", YAFFS_TRACE_ALLOCATE}, +- {"always", YAFFS_TRACE_ALWAYS}, +- {"bad_blocks", YAFFS_TRACE_BAD_BLOCKS}, +- {"buffers", YAFFS_TRACE_BUFFERS}, +- {"bug", YAFFS_TRACE_BUG}, +- {"checkpt", YAFFS_TRACE_CHECKPOINT}, +- {"deletion", YAFFS_TRACE_DELETION}, +- {"erase", YAFFS_TRACE_ERASE}, +- {"error", YAFFS_TRACE_ERROR}, +- {"gc_detail", YAFFS_TRACE_GC_DETAIL}, +- {"gc", YAFFS_TRACE_GC}, +- {"mtd", YAFFS_TRACE_MTD}, +- {"nandaccess", YAFFS_TRACE_NANDACCESS}, +- {"os", YAFFS_TRACE_OS}, +- {"scan_debug", YAFFS_TRACE_SCAN_DEBUG}, +- {"scan", YAFFS_TRACE_SCAN}, +- {"tracing", YAFFS_TRACE_TRACING}, +- +- {"verify", YAFFS_TRACE_VERIFY}, +- {"verify_nand", YAFFS_TRACE_VERIFY_NAND}, +- {"verify_full", YAFFS_TRACE_VERIFY_FULL}, +- {"verify_all", YAFFS_TRACE_VERIFY_ALL}, +- +- {"write", YAFFS_TRACE_WRITE}, +- {"all", 0xffffffff}, +- {"none", 0}, +- {NULL, 0}, +-}; +- +-#define MAX_MASK_NAME_LENGTH 40 +-static int yaffs_proc_write(struct file *file, const char *buf, +- unsigned long count, void *data) +-{ +- unsigned rg = 0, mask_bitfield; +- char *end; +- char *mask_name; +- const char *x; +- char substring[MAX_MASK_NAME_LENGTH + 1]; +- int i; +- int done = 0; +- int add, len = 0; +- int pos = 0; +- +- rg = yaffs_traceMask; +- +- while (!done && (pos < count)) { +- done = 1; +- while ((pos < count) && isspace(buf[pos])) +- pos++; +- +- switch (buf[pos]) { +- case '+': +- case '-': +- case '=': +- add = buf[pos]; +- pos++; +- break; +- +- default: +- add = ' '; +- break; +- } +- mask_name = NULL; +- +- mask_bitfield = simple_strtoul(buf + pos, &end, 0); +- +- if (end > buf + pos) { +- mask_name = "numeral"; +- len = end - (buf + pos); +- pos += len; +- done = 0; +- } else { +- for (x = buf + pos, i = 0; +- (*x == '_' || (*x >= 'a' && *x <= 'z')) && +- i < MAX_MASK_NAME_LENGTH; x++, i++, pos++) +- substring[i] = *x; +- substring[i] = '\0'; +- +- for (i = 0; mask_flags[i].mask_name != NULL; i++) { +- if (strcmp(substring, mask_flags[i].mask_name) == 0) { +- mask_name = mask_flags[i].mask_name; +- mask_bitfield = mask_flags[i].mask_bitfield; +- done = 0; +- break; +- } +- } +- } +- +- if (mask_name != NULL) { +- done = 0; +- switch (add) { +- case '-': +- rg &= ~mask_bitfield; +- break; +- case '+': +- rg |= mask_bitfield; +- break; +- case '=': +- rg = mask_bitfield; +- break; +- default: +- rg |= mask_bitfield; +- break; +- } +- } +- } +- +- yaffs_traceMask = rg | YAFFS_TRACE_ALWAYS; +- +- printk(KERN_DEBUG "new trace = 0x%08X\n", yaffs_traceMask); +- +- if (rg & YAFFS_TRACE_ALWAYS) { +- for (i = 0; mask_flags[i].mask_name != NULL; i++) { +- char flag; +- flag = ((rg & mask_flags[i].mask_bitfield) == mask_flags[i].mask_bitfield) ? '+' : '-'; +- printk(KERN_DEBUG "%c%s\n", flag, mask_flags[i].mask_name); +- } +- } +- +- return count; +-} +- +-/* Stuff to handle installation of file systems */ +-struct file_system_to_install { +- struct file_system_type *fst; +- int installed; +-}; +- +-static struct file_system_to_install fs_to_install[] = { +- {&yaffs_fs_type, 0}, +- {&yaffs2_fs_type, 0}, +- {NULL, 0} +-}; +- +-static int __init init_yaffs_fs(void) +-{ +- int error = 0; +- struct file_system_to_install *fsinst; +- +- T(YAFFS_TRACE_ALWAYS, +- ("yaffs " __DATE__ " " __TIME__ " Installing. \n")); +- +- /* Install the proc_fs entry */ +- my_proc_entry = create_proc_entry("yaffs", +- S_IRUGO | S_IFREG, +- YPROC_ROOT); +- +- if (my_proc_entry) { +- my_proc_entry->write_proc = yaffs_proc_write; +- my_proc_entry->read_proc = yaffs_proc_read; +- my_proc_entry->data = NULL; +- } else +- return -ENOMEM; +- +- /* Now add the file system entries */ +- +- fsinst = fs_to_install; +- +- while (fsinst->fst && !error) { +- error = register_filesystem(fsinst->fst); +- if (!error) +- fsinst->installed = 1; +- fsinst++; +- } +- +- /* Any errors? uninstall */ +- if (error) { +- fsinst = fs_to_install; +- +- while (fsinst->fst) { +- if (fsinst->installed) { +- unregister_filesystem(fsinst->fst); +- fsinst->installed = 0; +- } +- fsinst++; +- } +- } +- +- return error; +-} +- +-static void __exit exit_yaffs_fs(void) +-{ +- +- struct file_system_to_install *fsinst; +- +- T(YAFFS_TRACE_ALWAYS, ("yaffs " __DATE__ " " __TIME__ +- " removing. \n")); +- +- remove_proc_entry("yaffs", YPROC_ROOT); +- +- fsinst = fs_to_install; +- +- while (fsinst->fst) { +- if (fsinst->installed) { +- unregister_filesystem(fsinst->fst); +- fsinst->installed = 0; +- } +- fsinst++; +- } +-} +- +-module_init(init_yaffs_fs) +-module_exit(exit_yaffs_fs) +- +-MODULE_DESCRIPTION("YAFFS2 - a NAND specific flash file system"); +-MODULE_AUTHOR("Charles Manning, Aleph One Ltd., 2002-2006"); +-MODULE_LICENSE("GPL"); +--- a/fs/yaffs2/yaffs_getblockinfo.h ++++ b/fs/yaffs2/yaffs_getblockinfo.h +@@ -1,7 +1,7 @@ + /* + * YAFFS: Yet another Flash File System . A NAND-flash specific file system. + * +- * Copyright (C) 2002-2007 Aleph One Ltd. ++ * Copyright (C) 2002-2010 Aleph One Ltd. + * for Toby Churchill Ltd and Brightstar Engineering + * + * Created by Charles Manning +@@ -17,18 +17,19 @@ + #define __YAFFS_GETBLOCKINFO_H__ + + #include "yaffs_guts.h" ++#include "yaffs_trace.h" + + /* Function to manipulate block info */ +-static Y_INLINE yaffs_BlockInfo *yaffs_GetBlockInfo(yaffs_Device * dev, int blk) ++static Y_INLINE yaffs_block_info_t *yaffs_get_block_info(yaffs_dev_t * dev, int blk) + { +- if (blk < dev->internalStartBlock || blk > dev->internalEndBlock) { ++ if (blk < dev->internal_start_block || blk > dev->internal_end_block) { + T(YAFFS_TRACE_ERROR, + (TSTR + ("**>> yaffs: getBlockInfo block %d is not valid" TENDSTR), + blk)); + YBUG(); + } +- return &dev->blockInfo[blk - dev->internalStartBlock]; ++ return &dev->block_info[blk - dev->internal_start_block]; + } + + #endif +--- a/fs/yaffs2/yaffs_guts.c ++++ b/fs/yaffs2/yaffs_guts.c +@@ -1,7 +1,7 @@ + /* + * YAFFS: Yet Another Flash File System. A NAND-flash specific file system. + * +- * Copyright (C) 2002-2007 Aleph One Ltd. ++ * Copyright (C) 2002-2010 Aleph One Ltd. + * for Toby Churchill Ltd and Brightstar Engineering + * + * Created by Charles Manning +@@ -10,11 +10,8 @@ + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + */ +- +-const char *yaffs_guts_c_version = +- "$Id: yaffs_guts.c,v 1.82 2009-03-09 04:24:17 charles Exp $"; +- + #include "yportenv.h" ++#include "yaffs_trace.h" + + #include "yaffsinterface.h" + #include "yaffs_guts.h" +@@ -22,118 +19,109 @@ const char *yaffs_guts_c_version = + #include "yaffs_getblockinfo.h" + + #include "yaffs_tagscompat.h" +-#ifndef CONFIG_YAFFS_USE_OWN_SORT +-#include "yaffs_qsort.h" +-#endif ++ + #include "yaffs_nand.h" + +-#include "yaffs_checkptrw.h" ++#include "yaffs_yaffs1.h" ++#include "yaffs_yaffs2.h" ++#include "yaffs_bitmap.h" ++#include "yaffs_verify.h" + + #include "yaffs_nand.h" + #include "yaffs_packedtags2.h" + ++#include "yaffs_nameval.h" ++#include "yaffs_allocator.h" + +-#define YAFFS_PASSIVE_GC_CHUNKS 2 ++/* Note YAFFS_GC_GOOD_ENOUGH must be <= YAFFS_GC_PASSIVE_THRESHOLD */ ++#define YAFFS_GC_GOOD_ENOUGH 2 ++#define YAFFS_GC_PASSIVE_THRESHOLD 4 + + #include "yaffs_ecc.h" + + ++ + /* Robustification (if it ever comes about...) */ +-static void yaffs_RetireBlock(yaffs_Device *dev, int blockInNAND); +-static void yaffs_HandleWriteChunkError(yaffs_Device *dev, int chunkInNAND, ++static void yaffs_retire_block(yaffs_dev_t *dev, int flash_block); ++static void yaffs_handle_chunk_wr_error(yaffs_dev_t *dev, int nand_chunk, + int erasedOk); +-static void yaffs_HandleWriteChunkOk(yaffs_Device *dev, int chunkInNAND, ++static void yaffs_handle_chunk_wr_ok(yaffs_dev_t *dev, int nand_chunk, + const __u8 *data, +- const yaffs_ExtendedTags *tags); +-static void yaffs_HandleUpdateChunk(yaffs_Device *dev, int chunkInNAND, +- const yaffs_ExtendedTags *tags); ++ const yaffs_ext_tags *tags); ++static void yaffs_handle_chunk_update(yaffs_dev_t *dev, int nand_chunk, ++ const yaffs_ext_tags *tags); + + /* Other local prototypes */ +-static int yaffs_UnlinkObject(yaffs_Object *obj); +-static int yaffs_ObjectHasCachedWriteData(yaffs_Object *obj); +- +-static void yaffs_HardlinkFixup(yaffs_Device *dev, yaffs_Object *hardList); ++static void yaffs_update_parent(yaffs_obj_t *obj); ++static int yaffs_unlink_obj(yaffs_obj_t *obj); ++static int yaffs_obj_cache_dirty(yaffs_obj_t *obj); + +-static int yaffs_WriteNewChunkWithTagsToNAND(yaffs_Device *dev, ++static int yaffs_write_new_chunk(yaffs_dev_t *dev, + const __u8 *buffer, +- yaffs_ExtendedTags *tags, ++ yaffs_ext_tags *tags, + int useReserve); +-static int yaffs_PutChunkIntoFile(yaffs_Object *in, int chunkInInode, +- int chunkInNAND, int inScan); + +-static yaffs_Object *yaffs_CreateNewObject(yaffs_Device *dev, int number, +- yaffs_ObjectType type); +-static void yaffs_AddObjectToDirectory(yaffs_Object *directory, +- yaffs_Object *obj); +-static int yaffs_UpdateObjectHeader(yaffs_Object *in, const YCHAR *name, +- int force, int isShrink, int shadows); +-static void yaffs_RemoveObjectFromDirectory(yaffs_Object *obj); +-static int yaffs_CheckStructures(void); +-static int yaffs_DeleteWorker(yaffs_Object *in, yaffs_Tnode *tn, __u32 level, +- int chunkOffset, int *limit); +-static int yaffs_DoGenericObjectDeletion(yaffs_Object *in); +- +-static yaffs_BlockInfo *yaffs_GetBlockInfo(yaffs_Device *dev, int blockNo); + ++static yaffs_obj_t *yaffs_new_obj(yaffs_dev_t *dev, int number, ++ yaffs_obj_type type); + +-static int yaffs_CheckChunkErased(struct yaffs_DeviceStruct *dev, +- int chunkInNAND); + +-static int yaffs_UnlinkWorker(yaffs_Object *obj); ++static int yaffs_apply_xattrib_mod(yaffs_obj_t *obj, char *buffer, yaffs_xattr_mod *xmod); + +-static int yaffs_TagsMatch(const yaffs_ExtendedTags *tags, int objectId, +- int chunkInObject); ++static void yaffs_remove_obj_from_dir(yaffs_obj_t *obj); ++static int yaffs_check_structures(void); ++static int yaffs_generic_obj_del(yaffs_obj_t *in); ++ ++static int yaffs_check_chunk_erased(struct yaffs_dev_s *dev, ++ int nand_chunk); + +-static int yaffs_AllocateChunk(yaffs_Device *dev, int useReserve, +- yaffs_BlockInfo **blockUsedPtr); ++static int yaffs_unlink_worker(yaffs_obj_t *obj); + +-static void yaffs_VerifyFreeChunks(yaffs_Device *dev); ++static int yaffs_tags_match(const yaffs_ext_tags *tags, int obj_id, ++ int chunkInObject); + +-static void yaffs_CheckObjectDetailsLoaded(yaffs_Object *in); ++static int yaffs_alloc_chunk(yaffs_dev_t *dev, int useReserve, ++ yaffs_block_info_t **blockUsedPtr); + +-static void yaffs_VerifyDirectory(yaffs_Object *directory); +-#ifdef YAFFS_PARANOID +-static int yaffs_CheckFileSanity(yaffs_Object *in); +-#else +-#define yaffs_CheckFileSanity(in) +-#endif ++static void yaffs_check_obj_details_loaded(yaffs_obj_t *in); ++ ++static void yaffs_invalidate_whole_cache(yaffs_obj_t *in); ++static void yaffs_invalidate_chunk_cache(yaffs_obj_t *object, int chunk_id); + +-static void yaffs_InvalidateWholeChunkCache(yaffs_Object *in); +-static void yaffs_InvalidateChunkCache(yaffs_Object *object, int chunkId); ++static int yaffs_find_chunk_in_file(yaffs_obj_t *in, int inode_chunk, ++ yaffs_ext_tags *tags); + +-static void yaffs_InvalidateCheckpoint(yaffs_Device *dev); ++static int yaffs_verify_chunk_written(yaffs_dev_t *dev, ++ int nand_chunk, ++ const __u8 *data, ++ yaffs_ext_tags *tags); + +-static int yaffs_FindChunkInFile(yaffs_Object *in, int chunkInInode, +- yaffs_ExtendedTags *tags); + +-static __u32 yaffs_GetChunkGroupBase(yaffs_Device *dev, yaffs_Tnode *tn, +- unsigned pos); +-static yaffs_Tnode *yaffs_FindLevel0Tnode(yaffs_Device *dev, +- yaffs_FileStructure *fStruct, +- __u32 chunkId); ++static void yaffs_load_name_from_oh(yaffs_dev_t *dev,YCHAR *name, const YCHAR *ohName, int bufferSize); ++static void yaffs_load_oh_from_name(yaffs_dev_t *dev,YCHAR *ohName, const YCHAR *name); + + + /* Function to calculate chunk and offset */ + +-static void yaffs_AddrToChunk(yaffs_Device *dev, loff_t addr, int *chunkOut, ++static void yaffs_addr_to_chunk(yaffs_dev_t *dev, loff_t addr, int *chunkOut, + __u32 *offsetOut) + { + int chunk; + __u32 offset; + +- chunk = (__u32)(addr >> dev->chunkShift); ++ chunk = (__u32)(addr >> dev->chunk_shift); + +- if (dev->chunkDiv == 1) { ++ if (dev->chunk_div == 1) { + /* easy power of 2 case */ +- offset = (__u32)(addr & dev->chunkMask); ++ offset = (__u32)(addr & dev->chunk_mask); + } else { + /* Non power-of-2 case */ + + loff_t chunkBase; + +- chunk /= dev->chunkDiv; ++ chunk /= dev->chunk_div; + +- chunkBase = ((loff_t)chunk) * dev->nDataBytesPerChunk; ++ chunkBase = ((loff_t)chunk) * dev->data_bytes_per_chunk; + offset = (__u32)(addr - chunkBase); + } + +@@ -172,7 +160,7 @@ static __u32 ShiftsGE(__u32 x) + + static __u32 Shifts(__u32 x) + { +- int nShifts; ++ __u32 nShifts; + + nShifts = 0; + +@@ -193,49 +181,49 @@ static __u32 Shifts(__u32 x) + * Temporary buffer manipulations. + */ + +-static int yaffs_InitialiseTempBuffers(yaffs_Device *dev) ++static int yaffs_init_tmp_buffers(yaffs_dev_t *dev) + { + int i; + __u8 *buf = (__u8 *)1; + +- memset(dev->tempBuffer, 0, sizeof(dev->tempBuffer)); ++ memset(dev->temp_buffer, 0, sizeof(dev->temp_buffer)); + + for (i = 0; buf && i < YAFFS_N_TEMP_BUFFERS; i++) { +- dev->tempBuffer[i].line = 0; /* not in use */ +- dev->tempBuffer[i].buffer = buf = +- YMALLOC_DMA(dev->totalBytesPerChunk); ++ dev->temp_buffer[i].line = 0; /* not in use */ ++ dev->temp_buffer[i].buffer = buf = ++ YMALLOC_DMA(dev->param.total_bytes_per_chunk); + } + + return buf ? YAFFS_OK : YAFFS_FAIL; + } + +-__u8 *yaffs_GetTempBuffer(yaffs_Device *dev, int lineNo) ++__u8 *yaffs_get_temp_buffer(yaffs_dev_t *dev, int line_no) + { + int i, j; + +- dev->tempInUse++; +- if (dev->tempInUse > dev->maxTemp) +- dev->maxTemp = dev->tempInUse; ++ dev->temp_in_use++; ++ if (dev->temp_in_use > dev->max_temp) ++ dev->max_temp = dev->temp_in_use; + + for (i = 0; i < YAFFS_N_TEMP_BUFFERS; i++) { +- if (dev->tempBuffer[i].line == 0) { +- dev->tempBuffer[i].line = lineNo; +- if ((i + 1) > dev->maxTemp) { +- dev->maxTemp = i + 1; ++ if (dev->temp_buffer[i].line == 0) { ++ dev->temp_buffer[i].line = line_no; ++ if ((i + 1) > dev->max_temp) { ++ dev->max_temp = i + 1; + for (j = 0; j <= i; j++) +- dev->tempBuffer[j].maxLine = +- dev->tempBuffer[j].line; ++ dev->temp_buffer[j].max_line = ++ dev->temp_buffer[j].line; + } + +- return dev->tempBuffer[i].buffer; ++ return dev->temp_buffer[i].buffer; + } + } + + T(YAFFS_TRACE_BUFFERS, + (TSTR("Out of temp buffers at line %d, other held by lines:"), +- lineNo)); ++ line_no)); + for (i = 0; i < YAFFS_N_TEMP_BUFFERS; i++) +- T(YAFFS_TRACE_BUFFERS, (TSTR(" %d "), dev->tempBuffer[i].line)); ++ T(YAFFS_TRACE_BUFFERS, (TSTR(" %d "), dev->temp_buffer[i].line)); + + T(YAFFS_TRACE_BUFFERS, (TSTR(" " TENDSTR))); + +@@ -244,21 +232,21 @@ __u8 *yaffs_GetTempBuffer(yaffs_Device * + * This is not good. + */ + +- dev->unmanagedTempAllocations++; +- return YMALLOC(dev->nDataBytesPerChunk); ++ dev->unmanaged_buffer_allocs++; ++ return YMALLOC(dev->data_bytes_per_chunk); + + } + +-void yaffs_ReleaseTempBuffer(yaffs_Device *dev, __u8 *buffer, +- int lineNo) ++void yaffs_release_temp_buffer(yaffs_dev_t *dev, __u8 *buffer, ++ int line_no) + { + int i; + +- dev->tempInUse--; ++ dev->temp_in_use--; + + for (i = 0; i < YAFFS_N_TEMP_BUFFERS; i++) { +- if (dev->tempBuffer[i].buffer == buffer) { +- dev->tempBuffer[i].line = 0; ++ if (dev->temp_buffer[i].buffer == buffer) { ++ dev->temp_buffer[i].line = 0; + return; + } + } +@@ -267,9 +255,9 @@ void yaffs_ReleaseTempBuffer(yaffs_Devic + /* assume it is an unmanaged one. */ + T(YAFFS_TRACE_BUFFERS, + (TSTR("Releasing unmanaged temp buffer in line %d" TENDSTR), +- lineNo)); ++ line_no)); + YFREE(buffer); +- dev->unmanagedTempDeallocations++; ++ dev->unmanaged_buffer_deallocs++; + } + + } +@@ -277,21 +265,21 @@ void yaffs_ReleaseTempBuffer(yaffs_Devic + /* + * Determine if we have a managed buffer. + */ +-int yaffs_IsManagedTempBuffer(yaffs_Device *dev, const __u8 *buffer) ++int yaffs_is_managed_tmp_buffer(yaffs_dev_t *dev, const __u8 *buffer) + { + int i; + + for (i = 0; i < YAFFS_N_TEMP_BUFFERS; i++) { +- if (dev->tempBuffer[i].buffer == buffer) ++ if (dev->temp_buffer[i].buffer == buffer) + return 1; + } + +- for (i = 0; i < dev->nShortOpCaches; i++) { +- if (dev->srCache[i].data == buffer) ++ for (i = 0; i < dev->param.n_caches; i++) { ++ if (dev->cache[i].data == buffer) + return 1; + } + +- if (buffer == dev->checkpointBuffer) ++ if (buffer == dev->checkpt_buffer) + return 1; + + T(YAFFS_TRACE_ALWAYS, +@@ -299,6397 +287,4205 @@ int yaffs_IsManagedTempBuffer(yaffs_Devi + return 0; + } + +- +- + /* +- * Chunk bitmap manipulations ++ * Verification code + */ + +-static Y_INLINE __u8 *yaffs_BlockBits(yaffs_Device *dev, int blk) +-{ +- if (blk < dev->internalStartBlock || blk > dev->internalEndBlock) { +- T(YAFFS_TRACE_ERROR, +- (TSTR("**>> yaffs: BlockBits block %d is not valid" TENDSTR), +- blk)); +- YBUG(); +- } +- return dev->chunkBits + +- (dev->chunkBitmapStride * (blk - dev->internalStartBlock)); +-} + +-static Y_INLINE void yaffs_VerifyChunkBitId(yaffs_Device *dev, int blk, int chunk) +-{ +- if (blk < dev->internalStartBlock || blk > dev->internalEndBlock || +- chunk < 0 || chunk >= dev->nChunksPerBlock) { +- T(YAFFS_TRACE_ERROR, +- (TSTR("**>> yaffs: Chunk Id (%d:%d) invalid"TENDSTR), +- blk, chunk)); +- YBUG(); +- } +-} + +-static Y_INLINE void yaffs_ClearChunkBits(yaffs_Device *dev, int blk) +-{ +- __u8 *blkBits = yaffs_BlockBits(dev, blk); + +- memset(blkBits, 0, dev->chunkBitmapStride); +-} ++/* ++ * Simple hash function. Needs to have a reasonable spread ++ */ + +-static Y_INLINE void yaffs_ClearChunkBit(yaffs_Device *dev, int blk, int chunk) ++static Y_INLINE int yaffs_hash_fn(int n) + { +- __u8 *blkBits = yaffs_BlockBits(dev, blk); +- +- yaffs_VerifyChunkBitId(dev, blk, chunk); +- +- blkBits[chunk / 8] &= ~(1 << (chunk & 7)); ++ n = abs(n); ++ return n % YAFFS_NOBJECT_BUCKETS; + } + +-static Y_INLINE void yaffs_SetChunkBit(yaffs_Device *dev, int blk, int chunk) +-{ +- __u8 *blkBits = yaffs_BlockBits(dev, blk); +- +- yaffs_VerifyChunkBitId(dev, blk, chunk); +- +- blkBits[chunk / 8] |= (1 << (chunk & 7)); +-} ++/* ++ * Access functions to useful fake objects. ++ * Note that root might have a presence in NAND if permissions are set. ++ */ + +-static Y_INLINE int yaffs_CheckChunkBit(yaffs_Device *dev, int blk, int chunk) ++yaffs_obj_t *yaffs_root(yaffs_dev_t *dev) + { +- __u8 *blkBits = yaffs_BlockBits(dev, blk); +- yaffs_VerifyChunkBitId(dev, blk, chunk); +- +- return (blkBits[chunk / 8] & (1 << (chunk & 7))) ? 1 : 0; ++ return dev->root_dir; + } + +-static Y_INLINE int yaffs_StillSomeChunkBits(yaffs_Device *dev, int blk) ++yaffs_obj_t *yaffs_lost_n_found(yaffs_dev_t *dev) + { +- __u8 *blkBits = yaffs_BlockBits(dev, blk); +- int i; +- for (i = 0; i < dev->chunkBitmapStride; i++) { +- if (*blkBits) +- return 1; +- blkBits++; +- } +- return 0; ++ return dev->lost_n_found; + } + +-static int yaffs_CountChunkBits(yaffs_Device *dev, int blk) +-{ +- __u8 *blkBits = yaffs_BlockBits(dev, blk); +- int i; +- int n = 0; +- for (i = 0; i < dev->chunkBitmapStride; i++) { +- __u8 x = *blkBits; +- while (x) { +- if (x & 1) +- n++; +- x >>= 1; +- } +- +- blkBits++; +- } +- return n; +-} + + /* +- * Verification code ++ * Erased NAND checking functions + */ + +-static int yaffs_SkipVerification(yaffs_Device *dev) +-{ +- return !(yaffs_traceMask & (YAFFS_TRACE_VERIFY | YAFFS_TRACE_VERIFY_FULL)); +-} +- +-static int yaffs_SkipFullVerification(yaffs_Device *dev) +-{ +- return !(yaffs_traceMask & (YAFFS_TRACE_VERIFY_FULL)); +-} +- +-static int yaffs_SkipNANDVerification(yaffs_Device *dev) ++int yaffs_check_ff(__u8 *buffer, int n_bytes) + { +- return !(yaffs_traceMask & (YAFFS_TRACE_VERIFY_NAND)); ++ /* Horrible, slow implementation */ ++ while (n_bytes--) { ++ if (*buffer != 0xFF) ++ return 0; ++ buffer++; ++ } ++ return 1; + } + +-static const char *blockStateName[] = { +-"Unknown", +-"Needs scanning", +-"Scanning", +-"Empty", +-"Allocating", +-"Full", +-"Dirty", +-"Checkpoint", +-"Collecting", +-"Dead" +-}; +- +-static void yaffs_VerifyBlock(yaffs_Device *dev, yaffs_BlockInfo *bi, int n) ++static int yaffs_check_chunk_erased(struct yaffs_dev_s *dev, ++ int nand_chunk) + { +- int actuallyUsed; +- int inUse; ++ int retval = YAFFS_OK; ++ __u8 *data = yaffs_get_temp_buffer(dev, __LINE__); ++ yaffs_ext_tags tags; ++ int result; + +- if (yaffs_SkipVerification(dev)) +- return; ++ result = yaffs_rd_chunk_tags_nand(dev, nand_chunk, data, &tags); + +- /* Report illegal runtime states */ +- if (bi->blockState >= YAFFS_NUMBER_OF_BLOCK_STATES) +- T(YAFFS_TRACE_VERIFY, (TSTR("Block %d has undefined state %d"TENDSTR), n, bi->blockState)); ++ if (tags.ecc_result > YAFFS_ECC_RESULT_NO_ERROR) ++ retval = YAFFS_FAIL; + +- switch (bi->blockState) { +- case YAFFS_BLOCK_STATE_UNKNOWN: +- case YAFFS_BLOCK_STATE_SCANNING: +- case YAFFS_BLOCK_STATE_NEEDS_SCANNING: +- T(YAFFS_TRACE_VERIFY, (TSTR("Block %d has bad run-state %s"TENDSTR), +- n, blockStateName[bi->blockState])); ++ if (!yaffs_check_ff(data, dev->data_bytes_per_chunk) || tags.chunk_used) { ++ T(YAFFS_TRACE_NANDACCESS, ++ (TSTR("Chunk %d not erased" TENDSTR), nand_chunk)); ++ retval = YAFFS_FAIL; + } + +- /* Check pages in use and soft deletions are legal */ +- +- actuallyUsed = bi->pagesInUse - bi->softDeletions; +- +- if (bi->pagesInUse < 0 || bi->pagesInUse > dev->nChunksPerBlock || +- bi->softDeletions < 0 || bi->softDeletions > dev->nChunksPerBlock || +- actuallyUsed < 0 || actuallyUsed > dev->nChunksPerBlock) +- T(YAFFS_TRACE_VERIFY, (TSTR("Block %d has illegal values pagesInUsed %d softDeletions %d"TENDSTR), +- n, bi->pagesInUse, bi->softDeletions)); +- ++ yaffs_release_temp_buffer(dev, data, __LINE__); + +- /* Check chunk bitmap legal */ +- inUse = yaffs_CountChunkBits(dev, n); +- if (inUse != bi->pagesInUse) +- T(YAFFS_TRACE_VERIFY, (TSTR("Block %d has inconsistent values pagesInUse %d counted chunk bits %d"TENDSTR), +- n, bi->pagesInUse, inUse)); ++ return retval; + +- /* Check that the sequence number is valid. +- * Ten million is legal, but is very unlikely +- */ +- if (dev->isYaffs2 && +- (bi->blockState == YAFFS_BLOCK_STATE_ALLOCATING || bi->blockState == YAFFS_BLOCK_STATE_FULL) && +- (bi->sequenceNumber < YAFFS_LOWEST_SEQUENCE_NUMBER || bi->sequenceNumber > 10000000)) +- T(YAFFS_TRACE_VERIFY, (TSTR("Block %d has suspect sequence number of %d"TENDSTR), +- n, bi->sequenceNumber)); + } + +-static void yaffs_VerifyCollectedBlock(yaffs_Device *dev, yaffs_BlockInfo *bi, +- int n) ++ ++static int yaffs_verify_chunk_written(yaffs_dev_t *dev, ++ int nand_chunk, ++ const __u8 *data, ++ yaffs_ext_tags *tags) + { +- yaffs_VerifyBlock(dev, bi, n); ++ int retval = YAFFS_OK; ++ yaffs_ext_tags tempTags; ++ __u8 *buffer = yaffs_get_temp_buffer(dev,__LINE__); ++ int result; ++ ++ result = yaffs_rd_chunk_tags_nand(dev,nand_chunk,buffer,&tempTags); ++ if(memcmp(buffer,data,dev->data_bytes_per_chunk) || ++ tempTags.obj_id != tags->obj_id || ++ tempTags.chunk_id != tags->chunk_id || ++ tempTags.n_bytes != tags->n_bytes) ++ retval = YAFFS_FAIL; + +- /* After collection the block should be in the erased state */ +- /* This will need to change if we do partial gc */ ++ yaffs_release_temp_buffer(dev, buffer, __LINE__); + +- if (bi->blockState != YAFFS_BLOCK_STATE_COLLECTING && +- bi->blockState != YAFFS_BLOCK_STATE_EMPTY) { +- T(YAFFS_TRACE_ERROR, (TSTR("Block %d is in state %d after gc, should be erased"TENDSTR), +- n, bi->blockState)); +- } ++ return retval; + } + +-static void yaffs_VerifyBlocks(yaffs_Device *dev) ++static int yaffs_write_new_chunk(struct yaffs_dev_s *dev, ++ const __u8 *data, ++ yaffs_ext_tags *tags, ++ int useReserve) + { +- int i; +- int nBlocksPerState[YAFFS_NUMBER_OF_BLOCK_STATES]; +- int nIllegalBlockStates = 0; +- +- if (yaffs_SkipVerification(dev)) +- return; +- +- memset(nBlocksPerState, 0, sizeof(nBlocksPerState)); +- +- for (i = dev->internalStartBlock; i <= dev->internalEndBlock; i++) { +- yaffs_BlockInfo *bi = yaffs_GetBlockInfo(dev, i); +- yaffs_VerifyBlock(dev, bi, i); +- +- if (bi->blockState < YAFFS_NUMBER_OF_BLOCK_STATES) +- nBlocksPerState[bi->blockState]++; +- else +- nIllegalBlockStates++; +- } ++ int attempts = 0; ++ int writeOk = 0; ++ int chunk; + +- T(YAFFS_TRACE_VERIFY, (TSTR(""TENDSTR))); +- T(YAFFS_TRACE_VERIFY, (TSTR("Block summary"TENDSTR))); ++ yaffs2_checkpt_invalidate(dev); + +- T(YAFFS_TRACE_VERIFY, (TSTR("%d blocks have illegal states"TENDSTR), nIllegalBlockStates)); +- if (nBlocksPerState[YAFFS_BLOCK_STATE_ALLOCATING] > 1) +- T(YAFFS_TRACE_VERIFY, (TSTR("Too many allocating blocks"TENDSTR))); ++ do { ++ yaffs_block_info_t *bi = 0; ++ int erasedOk = 0; + +- for (i = 0; i < YAFFS_NUMBER_OF_BLOCK_STATES; i++) +- T(YAFFS_TRACE_VERIFY, +- (TSTR("%s %d blocks"TENDSTR), +- blockStateName[i], nBlocksPerState[i])); ++ chunk = yaffs_alloc_chunk(dev, useReserve, &bi); ++ if (chunk < 0) { ++ /* no space */ ++ break; ++ } + +- if (dev->blocksInCheckpoint != nBlocksPerState[YAFFS_BLOCK_STATE_CHECKPOINT]) +- T(YAFFS_TRACE_VERIFY, +- (TSTR("Checkpoint block count wrong dev %d count %d"TENDSTR), +- dev->blocksInCheckpoint, nBlocksPerState[YAFFS_BLOCK_STATE_CHECKPOINT])); ++ /* First check this chunk is erased, if it needs ++ * checking. The checking policy (unless forced ++ * always on) is as follows: ++ * ++ * Check the first page we try to write in a block. ++ * If the check passes then we don't need to check any ++ * more. If the check fails, we check again... ++ * If the block has been erased, we don't need to check. ++ * ++ * However, if the block has been prioritised for gc, ++ * then we think there might be something odd about ++ * this block and stop using it. ++ * ++ * Rationale: We should only ever see chunks that have ++ * not been erased if there was a partially written ++ * chunk due to power loss. This checking policy should ++ * catch that case with very few checks and thus save a ++ * lot of checks that are most likely not needed. ++ * ++ * Mods to the above ++ * If an erase check fails or the write fails we skip the ++ * rest of the block. ++ */ + +- if (dev->nErasedBlocks != nBlocksPerState[YAFFS_BLOCK_STATE_EMPTY]) +- T(YAFFS_TRACE_VERIFY, +- (TSTR("Erased block count wrong dev %d count %d"TENDSTR), +- dev->nErasedBlocks, nBlocksPerState[YAFFS_BLOCK_STATE_EMPTY])); ++ /* let's give it a try */ ++ attempts++; + +- if (nBlocksPerState[YAFFS_BLOCK_STATE_COLLECTING] > 1) +- T(YAFFS_TRACE_VERIFY, +- (TSTR("Too many collecting blocks %d (max is 1)"TENDSTR), +- nBlocksPerState[YAFFS_BLOCK_STATE_COLLECTING])); ++ if(dev->param.always_check_erased) ++ bi->skip_erased_check = 0; + +- T(YAFFS_TRACE_VERIFY, (TSTR(""TENDSTR))); ++ if (!bi->skip_erased_check) { ++ erasedOk = yaffs_check_chunk_erased(dev, chunk); ++ if (erasedOk != YAFFS_OK) { ++ T(YAFFS_TRACE_ERROR, ++ (TSTR("**>> yaffs chunk %d was not erased" ++ TENDSTR), chunk)); + +-} ++ /* If not erased, delete this one, ++ * skip rest of block and ++ * try another chunk */ ++ yaffs_chunk_del(dev,chunk,1,__LINE__); ++ yaffs_skip_rest_of_block(dev); ++ continue; ++ } ++ } + +-/* +- * Verify the object header. oh must be valid, but obj and tags may be NULL in which +- * case those tests will not be performed. +- */ +-static void yaffs_VerifyObjectHeader(yaffs_Object *obj, yaffs_ObjectHeader *oh, yaffs_ExtendedTags *tags, int parentCheck) +-{ +- if (obj && yaffs_SkipVerification(obj->myDev)) +- return; ++ writeOk = yaffs_wr_chunk_tags_nand(dev, chunk, ++ data, tags); + +- if (!(tags && obj && oh)) { +- T(YAFFS_TRACE_VERIFY, +- (TSTR("Verifying object header tags %x obj %x oh %x"TENDSTR), +- (__u32)tags, (__u32)obj, (__u32)oh)); +- return; +- } ++ if(!bi->skip_erased_check) ++ writeOk = yaffs_verify_chunk_written(dev, chunk, data, tags); + +- if (oh->type <= YAFFS_OBJECT_TYPE_UNKNOWN || +- oh->type > YAFFS_OBJECT_TYPE_MAX) +- T(YAFFS_TRACE_VERIFY, +- (TSTR("Obj %d header type is illegal value 0x%x"TENDSTR), +- tags->objectId, oh->type)); ++ if (writeOk != YAFFS_OK) { ++ /* Clean up aborted write, skip to next block and ++ * try another chunk */ ++ yaffs_handle_chunk_wr_error(dev, chunk, erasedOk); ++ continue; ++ } + +- if (tags->objectId != obj->objectId) +- T(YAFFS_TRACE_VERIFY, +- (TSTR("Obj %d header mismatch objectId %d"TENDSTR), +- tags->objectId, obj->objectId)); ++ bi->skip_erased_check = 1; + ++ /* Copy the data into the robustification buffer */ ++ yaffs_handle_chunk_wr_ok(dev, chunk, data, tags); + +- /* +- * Check that the object's parent ids match if parentCheck requested. +- * +- * Tests do not apply to the root object. +- */ ++ } while (writeOk != YAFFS_OK && ++ (yaffs_wr_attempts <= 0 || attempts <= yaffs_wr_attempts)); + +- if (parentCheck && tags->objectId > 1 && !obj->parent) +- T(YAFFS_TRACE_VERIFY, +- (TSTR("Obj %d header mismatch parentId %d obj->parent is NULL"TENDSTR), +- tags->objectId, oh->parentObjectId)); ++ if (!writeOk) ++ chunk = -1; + +- if (parentCheck && obj->parent && +- oh->parentObjectId != obj->parent->objectId && +- (oh->parentObjectId != YAFFS_OBJECTID_UNLINKED || +- obj->parent->objectId != YAFFS_OBJECTID_DELETED)) +- T(YAFFS_TRACE_VERIFY, +- (TSTR("Obj %d header mismatch parentId %d parentObjectId %d"TENDSTR), +- tags->objectId, oh->parentObjectId, obj->parent->objectId)); ++ if (attempts > 1) { ++ T(YAFFS_TRACE_ERROR, ++ (TSTR("**>> yaffs write required %d attempts" TENDSTR), ++ attempts)); + +- if (tags->objectId > 1 && oh->name[0] == 0) /* Null name */ +- T(YAFFS_TRACE_VERIFY, +- (TSTR("Obj %d header name is NULL"TENDSTR), +- obj->objectId)); ++ dev->n_retired_writes += (attempts - 1); ++ } + +- if (tags->objectId > 1 && ((__u8)(oh->name[0])) == 0xff) /* Trashed name */ +- T(YAFFS_TRACE_VERIFY, +- (TSTR("Obj %d header name is 0xFF"TENDSTR), +- obj->objectId)); ++ return chunk; + } + + ++ ++/* ++ * Block retiring for handling a broken block. ++ */ + +-static int yaffs_VerifyTnodeWorker(yaffs_Object *obj, yaffs_Tnode *tn, +- __u32 level, int chunkOffset) ++static void yaffs_retire_block(yaffs_dev_t *dev, int flash_block) + { +- int i; +- yaffs_Device *dev = obj->myDev; +- int ok = 1; ++ yaffs_block_info_t *bi = yaffs_get_block_info(dev, flash_block); + +- if (tn) { +- if (level > 0) { ++ yaffs2_checkpt_invalidate(dev); ++ ++ yaffs2_clear_oldest_dirty_seq(dev,bi); + +- for (i = 0; i < YAFFS_NTNODES_INTERNAL && ok; i++) { +- if (tn->internal[i]) { +- ok = yaffs_VerifyTnodeWorker(obj, +- tn->internal[i], +- level - 1, +- (chunkOffset<objectId; ++ if (yaffs_mark_bad(dev, flash_block) != YAFFS_OK) { ++ if (yaffs_erase_block(dev, flash_block) != YAFFS_OK) { ++ T(YAFFS_TRACE_ALWAYS, (TSTR( ++ "yaffs: Failed to mark bad and erase block %d" ++ TENDSTR), flash_block)); ++ } else { ++ yaffs_ext_tags tags; ++ int chunk_id = flash_block * dev->param.chunks_per_block; + +- chunkOffset <<= YAFFS_TNODES_LEVEL0_BITS; ++ __u8 *buffer = yaffs_get_temp_buffer(dev, __LINE__); + +- for (i = 0; i < YAFFS_NTNODES_LEVEL0; i++) { +- __u32 theChunk = yaffs_GetChunkGroupBase(dev, tn, i); ++ memset(buffer, 0xff, dev->data_bytes_per_chunk); ++ yaffs_init_tags(&tags); ++ tags.seq_number = YAFFS_SEQUENCE_BAD_BLOCK; ++ if (dev->param.write_chunk_tags_fn(dev, chunk_id - ++ dev->chunk_offset, buffer, &tags) != YAFFS_OK) ++ T(YAFFS_TRACE_ALWAYS, (TSTR("yaffs: Failed to " ++ TCONT("write bad block marker to block %d") ++ TENDSTR), flash_block)); + +- if (theChunk > 0) { +- /* T(~0,(TSTR("verifying (%d:%d) %d"TENDSTR),tags.objectId,tags.chunkId,theChunk)); */ +- yaffs_ReadChunkWithTagsFromNAND(dev, theChunk, NULL, &tags); +- if (tags.objectId != objectId || tags.chunkId != chunkOffset) { +- T(~0, (TSTR("Object %d chunkId %d NAND mismatch chunk %d tags (%d:%d)"TENDSTR), +- objectId, chunkOffset, theChunk, +- tags.objectId, tags.chunkId)); +- } +- } +- chunkOffset++; +- } ++ yaffs_release_temp_buffer(dev, buffer, __LINE__); + } + } + +- return ok; ++ bi->block_state = YAFFS_BLOCK_STATE_DEAD; ++ bi->gc_prioritise = 0; ++ bi->needs_retiring = 0; + ++ dev->n_retired_blocks++; + } + ++/* ++ * Functions for robustisizing TODO ++ * ++ */ + +-static void yaffs_VerifyFile(yaffs_Object *obj) ++static void yaffs_handle_chunk_wr_ok(yaffs_dev_t *dev, int nand_chunk, ++ const __u8 *data, ++ const yaffs_ext_tags *tags) + { +- int requiredTallness; +- int actualTallness; +- __u32 lastChunk; +- __u32 x; +- __u32 i; +- yaffs_Device *dev; +- yaffs_ExtendedTags tags; +- yaffs_Tnode *tn; +- __u32 objectId; ++ dev=dev; ++ nand_chunk=nand_chunk; ++ data=data; ++ tags=tags; ++} + +- if (!obj) +- return; ++static void yaffs_handle_chunk_update(yaffs_dev_t *dev, int nand_chunk, ++ const yaffs_ext_tags *tags) ++{ ++ dev=dev; ++ nand_chunk=nand_chunk; ++ tags=tags; ++} + +- if (yaffs_SkipVerification(obj->myDev)) +- return; ++void yaffs_handle_chunk_error(yaffs_dev_t *dev, yaffs_block_info_t *bi) ++{ ++ if (!bi->gc_prioritise) { ++ bi->gc_prioritise = 1; ++ dev->has_pending_prioritised_gc = 1; ++ bi->chunk_error_strikes++; + +- dev = obj->myDev; +- objectId = obj->objectId; ++ if (bi->chunk_error_strikes > 3) { ++ bi->needs_retiring = 1; /* Too many stikes, so retire this */ ++ T(YAFFS_TRACE_ALWAYS, (TSTR("yaffs: Block struck out" TENDSTR))); + +- /* Check file size is consistent with tnode depth */ +- lastChunk = obj->variant.fileVariant.fileSize / dev->nDataBytesPerChunk + 1; +- x = lastChunk >> YAFFS_TNODES_LEVEL0_BITS; +- requiredTallness = 0; +- while (x > 0) { +- x >>= YAFFS_TNODES_INTERNAL_BITS; +- requiredTallness++; ++ } + } ++} + +- actualTallness = obj->variant.fileVariant.topLevel; ++static void yaffs_handle_chunk_wr_error(yaffs_dev_t *dev, int nand_chunk, ++ int erasedOk) ++{ ++ int flash_block = nand_chunk / dev->param.chunks_per_block; ++ yaffs_block_info_t *bi = yaffs_get_block_info(dev, flash_block); + +- if (requiredTallness > actualTallness) +- T(YAFFS_TRACE_VERIFY, +- (TSTR("Obj %d had tnode tallness %d, needs to be %d"TENDSTR), +- obj->objectId, actualTallness, requiredTallness)); ++ yaffs_handle_chunk_error(dev, bi); + ++ if (erasedOk) { ++ /* Was an actual write failure, so mark the block for retirement */ ++ bi->needs_retiring = 1; ++ T(YAFFS_TRACE_ERROR | YAFFS_TRACE_BAD_BLOCKS, ++ (TSTR("**>> Block %d needs retiring" TENDSTR), flash_block)); ++ } + +- /* Check that the chunks in the tnode tree are all correct. +- * We do this by scanning through the tnode tree and +- * checking the tags for every chunk match. +- */ ++ /* Delete the chunk */ ++ yaffs_chunk_del(dev, nand_chunk, 1, __LINE__); ++ yaffs_skip_rest_of_block(dev); ++} + +- if (yaffs_SkipNANDVerification(dev)) +- return; + +- for (i = 1; i <= lastChunk; i++) { +- tn = yaffs_FindLevel0Tnode(dev, &obj->variant.fileVariant, i); ++/*---------------- Name handling functions ------------*/ + +- if (tn) { +- __u32 theChunk = yaffs_GetChunkGroupBase(dev, tn, i); +- if (theChunk > 0) { +- /* T(~0,(TSTR("verifying (%d:%d) %d"TENDSTR),objectId,i,theChunk)); */ +- yaffs_ReadChunkWithTagsFromNAND(dev, theChunk, NULL, &tags); +- if (tags.objectId != objectId || tags.chunkId != i) { +- T(~0, (TSTR("Object %d chunkId %d NAND mismatch chunk %d tags (%d:%d)"TENDSTR), +- objectId, i, theChunk, +- tags.objectId, tags.chunkId)); +- } +- } ++static __u16 yaffs_calc_name_sum(const YCHAR *name) ++{ ++ __u16 sum = 0; ++ __u16 i = 1; ++ ++ const YUCHAR *bname = (const YUCHAR *) name; ++ if (bname) { ++ while ((*bname) && (i < (YAFFS_MAX_NAME_LENGTH/2))) { ++ ++#ifdef CONFIG_YAFFS_CASE_INSENSITIVE ++ sum += yaffs_toupper(*bname) * i; ++#else ++ sum += (*bname) * i; ++#endif ++ i++; ++ bname++; + } + } ++ return sum; + } + +- +-static void yaffs_VerifyHardLink(yaffs_Object *obj) ++void yaffs_set_obj_name(yaffs_obj_t *obj, const YCHAR *name) + { +- if (obj && yaffs_SkipVerification(obj->myDev)) +- return; +- +- /* Verify sane equivalent object */ ++#ifdef CONFIG_YAFFS_SHORT_NAMES_IN_RAM ++ memset(obj->short_name, 0, sizeof(YCHAR) * (YAFFS_SHORT_NAME_LENGTH+1)); ++ if (name && yaffs_strnlen(name,YAFFS_SHORT_NAME_LENGTH+1) <= YAFFS_SHORT_NAME_LENGTH) ++ yaffs_strcpy(obj->short_name, name); ++ else ++ obj->short_name[0] = _Y('\0'); ++#endif ++ obj->sum = yaffs_calc_name_sum(name); + } + +-static void yaffs_VerifySymlink(yaffs_Object *obj) ++void yaffs_set_obj_name_from_oh(yaffs_obj_t *obj, const yaffs_obj_header *oh) + { +- if (obj && yaffs_SkipVerification(obj->myDev)) +- return; +- +- /* Verify symlink string */ ++#ifdef CONFIG_YAFFS_AUTO_UNICODE ++ YCHAR tmpName[YAFFS_MAX_NAME_LENGTH+1]; ++ memset(tmpName,0,sizeof(tmpName)); ++ yaffs_load_name_from_oh(obj->my_dev,tmpName,oh->name,YAFFS_MAX_NAME_LENGTH+1); ++ yaffs_set_obj_name(obj,tmpName); ++#else ++ yaffs_set_obj_name(obj,oh->name); ++#endif + } + +-static void yaffs_VerifySpecial(yaffs_Object *obj) +-{ +- if (obj && yaffs_SkipVerification(obj->myDev)) +- return; +-} +- +-static void yaffs_VerifyObject(yaffs_Object *obj) +-{ +- yaffs_Device *dev; +- +- __u32 chunkMin; +- __u32 chunkMax; +- +- __u32 chunkIdOk; +- __u32 chunkInRange; +- __u32 chunkShouldNotBeDeleted; +- __u32 chunkValid; +- +- if (!obj) +- return; +- +- if (obj->beingCreated) +- return; ++/*-------------------- TNODES ------------------- + +- dev = obj->myDev; ++ * List of spare tnodes ++ * The list is hooked together using the first pointer ++ * in the tnode. ++ */ + +- if (yaffs_SkipVerification(dev)) +- return; + +- /* Check sane object header chunk */ ++yaffs_tnode_t *yaffs_get_tnode(yaffs_dev_t *dev) ++{ ++ yaffs_tnode_t *tn = yaffs_alloc_raw_tnode(dev); ++ if (tn){ ++ memset(tn, 0, dev->tnode_size); ++ dev->n_tnodes++; ++ } + +- chunkMin = dev->internalStartBlock * dev->nChunksPerBlock; +- chunkMax = (dev->internalEndBlock+1) * dev->nChunksPerBlock - 1; ++ dev->checkpoint_blocks_required = 0; /* force recalculation*/ + +- chunkInRange = (((unsigned)(obj->hdrChunk)) >= chunkMin && ((unsigned)(obj->hdrChunk)) <= chunkMax); +- chunkIdOk = chunkInRange || obj->hdrChunk == 0; +- chunkValid = chunkInRange && +- yaffs_CheckChunkBit(dev, +- obj->hdrChunk / dev->nChunksPerBlock, +- obj->hdrChunk % dev->nChunksPerBlock); +- chunkShouldNotBeDeleted = chunkInRange && !chunkValid; ++ return tn; ++} + +- if (!obj->fake && +- (!chunkIdOk || chunkShouldNotBeDeleted)) { +- T(YAFFS_TRACE_VERIFY, +- (TSTR("Obj %d has chunkId %d %s %s"TENDSTR), +- obj->objectId, obj->hdrChunk, +- chunkIdOk ? "" : ",out of range", +- chunkShouldNotBeDeleted ? ",marked as deleted" : "")); +- } ++/* FreeTnode frees up a tnode and puts it back on the free list */ ++static void yaffs_free_tnode(yaffs_dev_t *dev, yaffs_tnode_t *tn) ++{ ++ yaffs_free_raw_tnode(dev,tn); ++ dev->n_tnodes--; ++ dev->checkpoint_blocks_required = 0; /* force recalculation*/ ++} + +- if (chunkValid && !yaffs_SkipNANDVerification(dev)) { +- yaffs_ExtendedTags tags; +- yaffs_ObjectHeader *oh; +- __u8 *buffer = yaffs_GetTempBuffer(dev, __LINE__); ++static void yaffs_deinit_tnodes_and_objs(yaffs_dev_t *dev) ++{ ++ yaffs_deinit_raw_tnodes_and_objs(dev); ++ dev->n_obj = 0; ++ dev->n_tnodes = 0; ++} + +- oh = (yaffs_ObjectHeader *)buffer; + +- yaffs_ReadChunkWithTagsFromNAND(dev, obj->hdrChunk, buffer, +- &tags); ++void yaffs_load_tnode_0(yaffs_dev_t *dev, yaffs_tnode_t *tn, unsigned pos, ++ unsigned val) ++{ ++ __u32 *map = (__u32 *)tn; ++ __u32 bitInMap; ++ __u32 bitInWord; ++ __u32 wordInMap; ++ __u32 mask; + +- yaffs_VerifyObjectHeader(obj, oh, &tags, 1); ++ pos &= YAFFS_TNODES_LEVEL0_MASK; ++ val >>= dev->chunk_grp_bits; + +- yaffs_ReleaseTempBuffer(dev, buffer, __LINE__); +- } ++ bitInMap = pos * dev->tnode_width; ++ wordInMap = bitInMap / 32; ++ bitInWord = bitInMap & (32 - 1); + +- /* Verify it has a parent */ +- if (obj && !obj->fake && +- (!obj->parent || obj->parent->myDev != dev)) { +- T(YAFFS_TRACE_VERIFY, +- (TSTR("Obj %d has parent pointer %p which does not look like an object"TENDSTR), +- obj->objectId, obj->parent)); +- } ++ mask = dev->tnode_mask << bitInWord; + +- /* Verify parent is a directory */ +- if (obj->parent && obj->parent->variantType != YAFFS_OBJECT_TYPE_DIRECTORY) { +- T(YAFFS_TRACE_VERIFY, +- (TSTR("Obj %d's parent is not a directory (type %d)"TENDSTR), +- obj->objectId, obj->parent->variantType)); +- } ++ map[wordInMap] &= ~mask; ++ map[wordInMap] |= (mask & (val << bitInWord)); + +- switch (obj->variantType) { +- case YAFFS_OBJECT_TYPE_FILE: +- yaffs_VerifyFile(obj); +- break; +- case YAFFS_OBJECT_TYPE_SYMLINK: +- yaffs_VerifySymlink(obj); +- break; +- case YAFFS_OBJECT_TYPE_DIRECTORY: +- yaffs_VerifyDirectory(obj); +- break; +- case YAFFS_OBJECT_TYPE_HARDLINK: +- yaffs_VerifyHardLink(obj); +- break; +- case YAFFS_OBJECT_TYPE_SPECIAL: +- yaffs_VerifySpecial(obj); +- break; +- case YAFFS_OBJECT_TYPE_UNKNOWN: +- default: +- T(YAFFS_TRACE_VERIFY, +- (TSTR("Obj %d has illegaltype %d"TENDSTR), +- obj->objectId, obj->variantType)); +- break; ++ if (dev->tnode_width > (32 - bitInWord)) { ++ bitInWord = (32 - bitInWord); ++ wordInMap++;; ++ mask = dev->tnode_mask >> (/*dev->tnode_width -*/ bitInWord); ++ map[wordInMap] &= ~mask; ++ map[wordInMap] |= (mask & (val >> bitInWord)); + } + } + +-static void yaffs_VerifyObjects(yaffs_Device *dev) ++__u32 yaffs_get_group_base(yaffs_dev_t *dev, yaffs_tnode_t *tn, ++ unsigned pos) + { +- yaffs_Object *obj; +- int i; +- struct ylist_head *lh; ++ __u32 *map = (__u32 *)tn; ++ __u32 bitInMap; ++ __u32 bitInWord; ++ __u32 wordInMap; ++ __u32 val; + +- if (yaffs_SkipVerification(dev)) +- return; ++ pos &= YAFFS_TNODES_LEVEL0_MASK; + +- /* Iterate through the objects in each hash entry */ ++ bitInMap = pos * dev->tnode_width; ++ wordInMap = bitInMap / 32; ++ bitInWord = bitInMap & (32 - 1); + +- for (i = 0; i < YAFFS_NOBJECT_BUCKETS; i++) { +- ylist_for_each(lh, &dev->objectBucket[i].list) { +- if (lh) { +- obj = ylist_entry(lh, yaffs_Object, hashLink); +- yaffs_VerifyObject(obj); +- } +- } +- } +-} ++ val = map[wordInMap] >> bitInWord; + ++ if (dev->tnode_width > (32 - bitInWord)) { ++ bitInWord = (32 - bitInWord); ++ wordInMap++;; ++ val |= (map[wordInMap] << bitInWord); ++ } + +-/* +- * Simple hash function. Needs to have a reasonable spread +- */ ++ val &= dev->tnode_mask; ++ val <<= dev->chunk_grp_bits; + +-static Y_INLINE int yaffs_HashFunction(int n) +-{ +- n = abs(n); +- return n % YAFFS_NOBJECT_BUCKETS; ++ return val; + } + +-/* +- * Access functions to useful fake objects. +- * Note that root might have a presence in NAND if permissions are set. ++/* ------------------- End of individual tnode manipulation -----------------*/ ++ ++/* ---------Functions to manipulate the look-up tree (made up of tnodes) ------ ++ * The look up tree is represented by the top tnode and the number of top_level ++ * in the tree. 0 means only the level 0 tnode is in the tree. + */ + +-yaffs_Object *yaffs_Root(yaffs_Device *dev) ++/* FindLevel0Tnode finds the level 0 tnode, if one exists. */ ++yaffs_tnode_t *yaffs_find_tnode_0(yaffs_dev_t *dev, ++ yaffs_file_s *file_struct, ++ __u32 chunk_id) + { +- return dev->rootDir; +-} ++ yaffs_tnode_t *tn = file_struct->top; ++ __u32 i; ++ int requiredTallness; ++ int level = file_struct->top_level; + +-yaffs_Object *yaffs_LostNFound(yaffs_Device *dev) +-{ +- return dev->lostNFoundDir; +-} ++ dev=dev; + ++ /* Check sane level and chunk Id */ ++ if (level < 0 || level > YAFFS_TNODES_MAX_LEVEL) ++ return NULL; + +-/* +- * Erased NAND checking functions +- */ ++ if (chunk_id > YAFFS_MAX_CHUNK_ID) ++ return NULL; + +-int yaffs_CheckFF(__u8 *buffer, int nBytes) +-{ +- /* Horrible, slow implementation */ +- while (nBytes--) { +- if (*buffer != 0xFF) +- return 0; +- buffer++; ++ /* First check we're tall enough (ie enough top_level) */ ++ ++ i = chunk_id >> YAFFS_TNODES_LEVEL0_BITS; ++ requiredTallness = 0; ++ while (i) { ++ i >>= YAFFS_TNODES_INTERNAL_BITS; ++ requiredTallness++; + } +- return 1; +-} + +-static int yaffs_CheckChunkErased(struct yaffs_DeviceStruct *dev, +- int chunkInNAND) +-{ +- int retval = YAFFS_OK; +- __u8 *data = yaffs_GetTempBuffer(dev, __LINE__); +- yaffs_ExtendedTags tags; +- int result; ++ if (requiredTallness > file_struct->top_level) ++ return NULL; /* Not tall enough, so we can't find it */ ++ ++ /* Traverse down to level 0 */ ++ while (level > 0 && tn) { ++ tn = tn->internal[(chunk_id >> ++ (YAFFS_TNODES_LEVEL0_BITS + ++ (level - 1) * ++ YAFFS_TNODES_INTERNAL_BITS)) & ++ YAFFS_TNODES_INTERNAL_MASK]; ++ level--; ++ } + +- result = yaffs_ReadChunkWithTagsFromNAND(dev, chunkInNAND, data, &tags); ++ return tn; ++} + +- if (tags.eccResult > YAFFS_ECC_RESULT_NO_ERROR) +- retval = YAFFS_FAIL; ++/* AddOrFindLevel0Tnode finds the level 0 tnode if it exists, otherwise first expands the tree. ++ * This happens in two steps: ++ * 1. If the tree isn't tall enough, then make it taller. ++ * 2. Scan down the tree towards the level 0 tnode adding tnodes if required. ++ * ++ * Used when modifying the tree. ++ * ++ * If the tn argument is NULL, then a fresh tnode will be added otherwise the specified tn will ++ * be plugged into the ttree. ++ */ + +- if (!yaffs_CheckFF(data, dev->nDataBytesPerChunk) || tags.chunkUsed) { +- T(YAFFS_TRACE_NANDACCESS, +- (TSTR("Chunk %d not erased" TENDSTR), chunkInNAND)); +- retval = YAFFS_FAIL; +- } ++yaffs_tnode_t *yaffs_add_find_tnode_0(yaffs_dev_t *dev, ++ yaffs_file_s *file_struct, ++ __u32 chunk_id, ++ yaffs_tnode_t *passed_tn) ++{ ++ int requiredTallness; ++ int i; ++ int l; ++ yaffs_tnode_t *tn; + +- yaffs_ReleaseTempBuffer(dev, data, __LINE__); ++ __u32 x; + +- return retval; + +-} ++ /* Check sane level and page Id */ ++ if (file_struct->top_level < 0 || file_struct->top_level > YAFFS_TNODES_MAX_LEVEL) ++ return NULL; + +-static int yaffs_WriteNewChunkWithTagsToNAND(struct yaffs_DeviceStruct *dev, +- const __u8 *data, +- yaffs_ExtendedTags *tags, +- int useReserve) +-{ +- int attempts = 0; +- int writeOk = 0; +- int chunk; ++ if (chunk_id > YAFFS_MAX_CHUNK_ID) ++ return NULL; + +- yaffs_InvalidateCheckpoint(dev); ++ /* First check we're tall enough (ie enough top_level) */ + +- do { +- yaffs_BlockInfo *bi = 0; +- int erasedOk = 0; ++ x = chunk_id >> YAFFS_TNODES_LEVEL0_BITS; ++ requiredTallness = 0; ++ while (x) { ++ x >>= YAFFS_TNODES_INTERNAL_BITS; ++ requiredTallness++; ++ } + +- chunk = yaffs_AllocateChunk(dev, useReserve, &bi); +- if (chunk < 0) { +- /* no space */ +- break; +- } + +- /* First check this chunk is erased, if it needs +- * checking. The checking policy (unless forced +- * always on) is as follows: +- * +- * Check the first page we try to write in a block. +- * If the check passes then we don't need to check any +- * more. If the check fails, we check again... +- * If the block has been erased, we don't need to check. +- * +- * However, if the block has been prioritised for gc, +- * then we think there might be something odd about +- * this block and stop using it. +- * +- * Rationale: We should only ever see chunks that have +- * not been erased if there was a partially written +- * chunk due to power loss. This checking policy should +- * catch that case with very few checks and thus save a +- * lot of checks that are most likely not needed. +- */ +- if (bi->gcPrioritise) { +- yaffs_DeleteChunk(dev, chunk, 1, __LINE__); +- /* try another chunk */ +- continue; +- } ++ if (requiredTallness > file_struct->top_level) { ++ /* Not tall enough, gotta make the tree taller */ ++ for (i = file_struct->top_level; i < requiredTallness; i++) { + +- /* let's give it a try */ +- attempts++; ++ tn = yaffs_get_tnode(dev); + +-#ifdef CONFIG_YAFFS_ALWAYS_CHECK_CHUNK_ERASED +- bi->skipErasedCheck = 0; +-#endif +- if (!bi->skipErasedCheck) { +- erasedOk = yaffs_CheckChunkErased(dev, chunk); +- if (erasedOk != YAFFS_OK) { ++ if (tn) { ++ tn->internal[0] = file_struct->top; ++ file_struct->top = tn; ++ file_struct->top_level++; ++ } else { + T(YAFFS_TRACE_ERROR, +- (TSTR("**>> yaffs chunk %d was not erased" +- TENDSTR), chunk)); +- +- /* try another chunk */ +- continue; ++ (TSTR("yaffs: no more tnodes" TENDSTR))); ++ return NULL; + } +- bi->skipErasedCheck = 1; + } ++ } + +- writeOk = yaffs_WriteChunkWithTagsToNAND(dev, chunk, +- data, tags); +- if (writeOk != YAFFS_OK) { +- yaffs_HandleWriteChunkError(dev, chunk, erasedOk); +- /* try another chunk */ +- continue; +- } ++ /* Traverse down to level 0, adding anything we need */ + +- /* Copy the data into the robustification buffer */ +- yaffs_HandleWriteChunkOk(dev, chunk, data, tags); ++ l = file_struct->top_level; ++ tn = file_struct->top; + +- } while (writeOk != YAFFS_OK && +- (yaffs_wr_attempts <= 0 || attempts <= yaffs_wr_attempts)); ++ if (l > 0) { ++ while (l > 0 && tn) { ++ x = (chunk_id >> ++ (YAFFS_TNODES_LEVEL0_BITS + ++ (l - 1) * YAFFS_TNODES_INTERNAL_BITS)) & ++ YAFFS_TNODES_INTERNAL_MASK; + +- if (!writeOk) +- chunk = -1; + +- if (attempts > 1) { +- T(YAFFS_TRACE_ERROR, +- (TSTR("**>> yaffs write required %d attempts" TENDSTR), +- attempts)); ++ if ((l > 1) && !tn->internal[x]) { ++ /* Add missing non-level-zero tnode */ ++ tn->internal[x] = yaffs_get_tnode(dev); ++ if(!tn->internal[x]) ++ return NULL; ++ } else if (l == 1) { ++ /* Looking from level 1 at level 0 */ ++ if (passed_tn) { ++ /* If we already have one, then release it.*/ ++ if (tn->internal[x]) ++ yaffs_free_tnode(dev, tn->internal[x]); ++ tn->internal[x] = passed_tn; ++ ++ } else if (!tn->internal[x]) { ++ /* Don't have one, none passed in */ ++ tn->internal[x] = yaffs_get_tnode(dev); ++ if(!tn->internal[x]) ++ return NULL; ++ } ++ } + +- dev->nRetriedWrites += (attempts - 1); ++ tn = tn->internal[x]; ++ l--; ++ } ++ } else { ++ /* top is level 0 */ ++ if (passed_tn) { ++ memcpy(tn, passed_tn, (dev->tnode_width * YAFFS_NTNODES_LEVEL0)/8); ++ yaffs_free_tnode(dev, passed_tn); ++ } + } + +- return chunk; ++ return tn; + } + +-/* +- * Block retiring for handling a broken block. +- */ +- +-static void yaffs_RetireBlock(yaffs_Device *dev, int blockInNAND) ++static int yaffs_find_chunk_in_group(yaffs_dev_t *dev, int theChunk, ++ yaffs_ext_tags *tags, int obj_id, ++ int inode_chunk) + { +- yaffs_BlockInfo *bi = yaffs_GetBlockInfo(dev, blockInNAND); ++ int j; + +- yaffs_InvalidateCheckpoint(dev); ++ for (j = 0; theChunk && j < dev->chunk_grp_size; j++) { ++ if (yaffs_check_chunk_bit(dev, theChunk / dev->param.chunks_per_block, ++ theChunk % dev->param.chunks_per_block)) { ++ ++ if(dev->chunk_grp_size == 1) ++ return theChunk; ++ else { ++ yaffs_rd_chunk_tags_nand(dev, theChunk, NULL, ++ tags); ++ if (yaffs_tags_match(tags, obj_id, inode_chunk)) { ++ /* found it; */ ++ return theChunk; ++ } ++ } ++ } ++ theChunk++; ++ } ++ return -1; ++} + +- if (yaffs_MarkBlockBad(dev, blockInNAND) != YAFFS_OK) { +- if (yaffs_EraseBlockInNAND(dev, blockInNAND) != YAFFS_OK) { +- T(YAFFS_TRACE_ALWAYS, (TSTR( +- "yaffs: Failed to mark bad and erase block %d" +- TENDSTR), blockInNAND)); +- } else { +- yaffs_ExtendedTags tags; +- int chunkId = blockInNAND * dev->nChunksPerBlock; ++#if 0 ++/* Experimental code not being used yet. Might speed up file deletion */ ++/* DeleteWorker scans backwards through the tnode tree and deletes all the ++ * chunks and tnodes in the file. ++ * Returns 1 if the tree was deleted. ++ * Returns 0 if it stopped early due to hitting the limit and the delete is incomplete. ++ */ + +- __u8 *buffer = yaffs_GetTempBuffer(dev, __LINE__); ++static int yaffs_del_worker(yaffs_obj_t *in, yaffs_tnode_t *tn, __u32 level, ++ int chunk_offset, int *limit) ++{ ++ int i; ++ int inode_chunk; ++ int theChunk; ++ yaffs_ext_tags tags; ++ int foundChunk; ++ yaffs_dev_t *dev = in->my_dev; + +- memset(buffer, 0xff, dev->nDataBytesPerChunk); +- yaffs_InitialiseTags(&tags); +- tags.sequenceNumber = YAFFS_SEQUENCE_BAD_BLOCK; +- if (dev->writeChunkWithTagsToNAND(dev, chunkId - +- dev->chunkOffset, buffer, &tags) != YAFFS_OK) +- T(YAFFS_TRACE_ALWAYS, (TSTR("yaffs: Failed to " +- TCONT("write bad block marker to block %d") +- TENDSTR), blockInNAND)); ++ int allDone = 1; + +- yaffs_ReleaseTempBuffer(dev, buffer, __LINE__); +- } +- } ++ if (tn) { ++ if (level > 0) { ++ for (i = YAFFS_NTNODES_INTERNAL - 1; allDone && i >= 0; ++ i--) { ++ if (tn->internal[i]) { ++ if (limit && (*limit) < 0) { ++ allDone = 0; ++ } else { ++ allDone = ++ yaffs_del_worker(in, ++ tn-> ++ internal ++ [i], ++ level - ++ 1, ++ (chunk_offset ++ << ++ YAFFS_TNODES_INTERNAL_BITS) ++ + i, ++ limit); ++ } ++ if (allDone) { ++ yaffs_free_tnode(dev, ++ tn-> ++ internal[i]); ++ tn->internal[i] = NULL; ++ } ++ } ++ } ++ return (allDone) ? 1 : 0; ++ } else if (level == 0) { ++ int hitLimit = 0; + +- bi->blockState = YAFFS_BLOCK_STATE_DEAD; +- bi->gcPrioritise = 0; +- bi->needsRetiring = 0; ++ for (i = YAFFS_NTNODES_LEVEL0 - 1; i >= 0 && !hitLimit; ++ i--) { ++ theChunk = yaffs_get_group_base(dev, tn, i); ++ if (theChunk) { + +- dev->nRetiredBlocks++; +-} ++ inode_chunk = (chunk_offset << ++ YAFFS_TNODES_LEVEL0_BITS) + i; + +-/* +- * Functions for robustisizing TODO +- * +- */ ++ foundChunk = ++ yaffs_find_chunk_in_group(dev, ++ theChunk, ++ &tags, ++ in->obj_id, ++ inode_chunk); + +-static void yaffs_HandleWriteChunkOk(yaffs_Device *dev, int chunkInNAND, +- const __u8 *data, +- const yaffs_ExtendedTags *tags) +-{ +-} ++ if (foundChunk > 0) { ++ yaffs_chunk_del(dev, ++ foundChunk, 1, ++ __LINE__); ++ in->n_data_chunks--; ++ if (limit) { ++ *limit = *limit - 1; ++ if (*limit <= 0) ++ hitLimit = 1; ++ } + +-static void yaffs_HandleUpdateChunk(yaffs_Device *dev, int chunkInNAND, +- const yaffs_ExtendedTags *tags) +-{ +-} ++ } + +-void yaffs_HandleChunkError(yaffs_Device *dev, yaffs_BlockInfo *bi) +-{ +- if (!bi->gcPrioritise) { +- bi->gcPrioritise = 1; +- dev->hasPendingPrioritisedGCs = 1; +- bi->chunkErrorStrikes++; ++ yaffs_load_tnode_0(dev, tn, i, 0); ++ } + +- if (bi->chunkErrorStrikes > 3) { +- bi->needsRetiring = 1; /* Too many stikes, so retire this */ +- T(YAFFS_TRACE_ALWAYS, (TSTR("yaffs: Block struck out" TENDSTR))); ++ } ++ return (i < 0) ? 1 : 0; + + } ++ + } ++ ++ return 1; ++ + } + +-static void yaffs_HandleWriteChunkError(yaffs_Device *dev, int chunkInNAND, +- int erasedOk) ++#endif ++ ++static void yaffs_soft_del_chunk(yaffs_dev_t *dev, int chunk) + { +- int blockInNAND = chunkInNAND / dev->nChunksPerBlock; +- yaffs_BlockInfo *bi = yaffs_GetBlockInfo(dev, blockInNAND); ++ yaffs_block_info_t *theBlock; ++ unsigned block_no; + +- yaffs_HandleChunkError(dev, bi); ++ T(YAFFS_TRACE_DELETION, (TSTR("soft delete chunk %d" TENDSTR), chunk)); + +- if (erasedOk) { +- /* Was an actual write failure, so mark the block for retirement */ +- bi->needsRetiring = 1; +- T(YAFFS_TRACE_ERROR | YAFFS_TRACE_BAD_BLOCKS, +- (TSTR("**>> Block %d needs retiring" TENDSTR), blockInNAND)); ++ block_no = chunk / dev->param.chunks_per_block; ++ theBlock = yaffs_get_block_info(dev, block_no); ++ if (theBlock) { ++ theBlock->soft_del_pages++; ++ dev->n_free_chunks++; ++ yaffs2_update_oldest_dirty_seq(dev, block_no, theBlock); + } +- +- /* Delete the chunk */ +- yaffs_DeleteChunk(dev, chunkInNAND, 1, __LINE__); + } + ++/* SoftDeleteWorker scans backwards through the tnode tree and soft deletes all the chunks in the file. ++ * All soft deleting does is increment the block's softdelete count and pulls the chunk out ++ * of the tnode. ++ * Thus, essentially this is the same as DeleteWorker except that the chunks are soft deleted. ++ */ + +-/*---------------- Name handling functions ------------*/ +- +-static __u16 yaffs_CalcNameSum(const YCHAR *name) ++static int yaffs_soft_del_worker(yaffs_obj_t *in, yaffs_tnode_t *tn, ++ __u32 level, int chunk_offset) + { +- __u16 sum = 0; +- __u16 i = 1; ++ int i; ++ int theChunk; ++ int allDone = 1; ++ yaffs_dev_t *dev = in->my_dev; + +- const YUCHAR *bname = (const YUCHAR *) name; +- if (bname) { +- while ((*bname) && (i < (YAFFS_MAX_NAME_LENGTH/2))) { ++ if (tn) { ++ if (level > 0) { ++ ++ for (i = YAFFS_NTNODES_INTERNAL - 1; allDone && i >= 0; ++ i--) { ++ if (tn->internal[i]) { ++ allDone = ++ yaffs_soft_del_worker(in, ++ tn-> ++ internal[i], ++ level - 1, ++ (chunk_offset ++ << ++ YAFFS_TNODES_INTERNAL_BITS) ++ + i); ++ if (allDone) { ++ yaffs_free_tnode(dev, ++ tn-> ++ internal[i]); ++ tn->internal[i] = NULL; ++ } else { ++ /* Hoosterman... how could this happen? */ ++ } ++ } ++ } ++ return (allDone) ? 1 : 0; ++ } else if (level == 0) { ++ ++ for (i = YAFFS_NTNODES_LEVEL0 - 1; i >= 0; i--) { ++ theChunk = yaffs_get_group_base(dev, tn, i); ++ if (theChunk) { ++ /* Note this does not find the real chunk, only the chunk group. ++ * We make an assumption that a chunk group is not larger than ++ * a block. ++ */ ++ yaffs_soft_del_chunk(dev, theChunk); ++ yaffs_load_tnode_0(dev, tn, i, 0); ++ } ++ ++ } ++ return 1; + +-#ifdef CONFIG_YAFFS_CASE_INSENSITIVE +- sum += yaffs_toupper(*bname) * i; +-#else +- sum += (*bname) * i; +-#endif +- i++; +- bname++; + } ++ + } +- return sum; ++ ++ return 1; ++ + } + +-static void yaffs_SetObjectName(yaffs_Object *obj, const YCHAR *name) ++static void yaffs_soft_del_file(yaffs_obj_t *obj) + { +-#ifdef CONFIG_YAFFS_SHORT_NAMES_IN_RAM +- memset(obj->shortName, 0, sizeof(YCHAR) * (YAFFS_SHORT_NAME_LENGTH+1)); +- if (name && yaffs_strlen(name) <= YAFFS_SHORT_NAME_LENGTH) +- yaffs_strcpy(obj->shortName, name); +- else +- obj->shortName[0] = _Y('\0'); +-#endif +- obj->sum = yaffs_CalcNameSum(name); ++ if (obj->deleted && ++ obj->variant_type == YAFFS_OBJECT_TYPE_FILE && !obj->soft_del) { ++ if (obj->n_data_chunks <= 0) { ++ /* Empty file with no duplicate object headers, just delete it immediately */ ++ yaffs_free_tnode(obj->my_dev, ++ obj->variant.file_variant.top); ++ obj->variant.file_variant.top = NULL; ++ T(YAFFS_TRACE_TRACING, ++ (TSTR("yaffs: Deleting empty file %d" TENDSTR), ++ obj->obj_id)); ++ yaffs_generic_obj_del(obj); ++ } else { ++ yaffs_soft_del_worker(obj, ++ obj->variant.file_variant.top, ++ obj->variant.file_variant. ++ top_level, 0); ++ obj->soft_del = 1; ++ } ++ } + } + +-/*-------------------- TNODES ------------------- +- +- * List of spare tnodes +- * The list is hooked together using the first pointer +- * in the tnode. +- */ +- +-/* yaffs_CreateTnodes creates a bunch more tnodes and +- * adds them to the tnode free list. +- * Don't use this function directly ++/* Pruning removes any part of the file structure tree that is beyond the ++ * bounds of the file (ie that does not point to chunks). ++ * ++ * A file should only get pruned when its size is reduced. ++ * ++ * Before pruning, the chunks must be pulled from the tree and the ++ * level 0 tnode entries must be zeroed out. ++ * Could also use this for file deletion, but that's probably better handled ++ * by a special case. ++ * ++ * This function is recursive. For levels > 0 the function is called again on ++ * any sub-tree. For level == 0 we just check if the sub-tree has data. ++ * If there is no data in a subtree then it is pruned. + */ + +-static int yaffs_CreateTnodes(yaffs_Device *dev, int nTnodes) ++static yaffs_tnode_t *yaffs_prune_worker(yaffs_dev_t *dev, yaffs_tnode_t *tn, ++ __u32 level, int del0) + { + int i; +- int tnodeSize; +- yaffs_Tnode *newTnodes; +- __u8 *mem; +- yaffs_Tnode *curr; +- yaffs_Tnode *next; +- yaffs_TnodeList *tnl; ++ int hasData; + +- if (nTnodes < 1) +- return YAFFS_OK; ++ if (tn) { ++ hasData = 0; + +- /* Calculate the tnode size in bytes for variable width tnode support. +- * Must be a multiple of 32-bits */ +- tnodeSize = (dev->tnodeWidth * YAFFS_NTNODES_LEVEL0)/8; ++ if(level > 0){ ++ for (i = 0; i < YAFFS_NTNODES_INTERNAL; i++) { ++ if (tn->internal[i]) { ++ tn->internal[i] = ++ yaffs_prune_worker(dev, tn->internal[i], ++ level - 1, ++ (i == 0) ? del0 : 1); ++ } + +- if (tnodeSize < sizeof(yaffs_Tnode)) +- tnodeSize = sizeof(yaffs_Tnode); ++ if (tn->internal[i]) ++ hasData++; ++ } ++ } else { ++ int tnode_size_u32 = dev->tnode_size/sizeof(__u32); ++ __u32 *map = (__u32 *)tn; + +- /* make these things */ ++ for(i = 0; !hasData && i < tnode_size_u32; i++){ ++ if(map[i]) ++ hasData++; ++ } ++ } + +- newTnodes = YMALLOC(nTnodes * tnodeSize); +- mem = (__u8 *)newTnodes; ++ if (hasData == 0 && del0) { ++ /* Free and return NULL */ + +- if (!newTnodes) { +- T(YAFFS_TRACE_ERROR, +- (TSTR("yaffs: Could not allocate Tnodes" TENDSTR))); +- return YAFFS_FAIL; +- } ++ yaffs_free_tnode(dev, tn); ++ tn = NULL; ++ } + +- /* Hook them into the free list */ +-#if 0 +- for (i = 0; i < nTnodes - 1; i++) { +- newTnodes[i].internal[0] = &newTnodes[i + 1]; +-#ifdef CONFIG_YAFFS_TNODE_LIST_DEBUG +- newTnodes[i].internal[YAFFS_NTNODES_INTERNAL] = (void *)1; +-#endif + } + +- newTnodes[nTnodes - 1].internal[0] = dev->freeTnodes; +-#ifdef CONFIG_YAFFS_TNODE_LIST_DEBUG +- newTnodes[nTnodes - 1].internal[YAFFS_NTNODES_INTERNAL] = (void *)1; +-#endif +- dev->freeTnodes = newTnodes; +-#else +- /* New hookup for wide tnodes */ +- for (i = 0; i < nTnodes - 1; i++) { +- curr = (yaffs_Tnode *) &mem[i * tnodeSize]; +- next = (yaffs_Tnode *) &mem[(i+1) * tnodeSize]; +- curr->internal[0] = next; +- } ++ return tn; + +- curr = (yaffs_Tnode *) &mem[(nTnodes - 1) * tnodeSize]; +- curr->internal[0] = dev->freeTnodes; +- dev->freeTnodes = (yaffs_Tnode *)mem; ++} + +-#endif ++static int yaffs_prune_tree(yaffs_dev_t *dev, ++ yaffs_file_s *file_struct) ++{ ++ int i; ++ int hasData; ++ int done = 0; ++ yaffs_tnode_t *tn; + ++ if (file_struct->top_level > 0) { ++ file_struct->top = ++ yaffs_prune_worker(dev, file_struct->top, file_struct->top_level, 0); ++ ++ /* Now we have a tree with all the non-zero branches NULL but the height ++ * is the same as it was. ++ * Let's see if we can trim internal tnodes to shorten the tree. ++ * We can do this if only the 0th element in the tnode is in use ++ * (ie all the non-zero are NULL) ++ */ + +- dev->nFreeTnodes += nTnodes; +- dev->nTnodesCreated += nTnodes; ++ while (file_struct->top_level && !done) { ++ tn = file_struct->top; + +- /* Now add this bunch of tnodes to a list for freeing up. +- * NB If we can't add this to the management list it isn't fatal +- * but it just means we can't free this bunch of tnodes later. +- */ ++ hasData = 0; ++ for (i = 1; i < YAFFS_NTNODES_INTERNAL; i++) { ++ if (tn->internal[i]) ++ hasData++; ++ } + +- tnl = YMALLOC(sizeof(yaffs_TnodeList)); +- if (!tnl) { +- T(YAFFS_TRACE_ERROR, +- (TSTR +- ("yaffs: Could not add tnodes to management list" TENDSTR))); +- return YAFFS_FAIL; +- } else { +- tnl->tnodes = newTnodes; +- tnl->next = dev->allocatedTnodeList; +- dev->allocatedTnodeList = tnl; ++ if (!hasData) { ++ file_struct->top = tn->internal[0]; ++ file_struct->top_level--; ++ yaffs_free_tnode(dev, tn); ++ } else { ++ done = 1; ++ } ++ } + } + +- T(YAFFS_TRACE_ALLOCATE, (TSTR("yaffs: Tnodes added" TENDSTR))); +- + return YAFFS_OK; + } + +-/* GetTnode gets us a clean tnode. Tries to make allocate more if we run out */ ++/*-------------------- End of File Structure functions.-------------------*/ ++ + +-static yaffs_Tnode *yaffs_GetTnodeRaw(yaffs_Device *dev) ++/* AllocateEmptyObject gets us a clean Object. Tries to make allocate more if we run out */ ++static yaffs_obj_t *yaffs_alloc_empty_obj(yaffs_dev_t *dev) + { +- yaffs_Tnode *tn = NULL; ++ yaffs_obj_t *obj = yaffs_alloc_raw_obj(dev); + +- /* If there are none left make more */ +- if (!dev->freeTnodes) +- yaffs_CreateTnodes(dev, YAFFS_ALLOCATION_NTNODES); +- +- if (dev->freeTnodes) { +- tn = dev->freeTnodes; +-#ifdef CONFIG_YAFFS_TNODE_LIST_DEBUG +- if (tn->internal[YAFFS_NTNODES_INTERNAL] != (void *)1) { +- /* Hoosterman, this thing looks like it isn't in the list */ +- T(YAFFS_TRACE_ALWAYS, +- (TSTR("yaffs: Tnode list bug 1" TENDSTR))); +- } +-#endif +- dev->freeTnodes = dev->freeTnodes->internal[0]; +- dev->nFreeTnodes--; +- } ++ if (obj) { ++ dev->n_obj++; + +- dev->nCheckpointBlocksRequired = 0; /* force recalculation*/ ++ /* Now sweeten it up... */ + +- return tn; +-} ++ memset(obj, 0, sizeof(yaffs_obj_t)); ++ obj->being_created = 1; + +-static yaffs_Tnode *yaffs_GetTnode(yaffs_Device *dev) +-{ +- yaffs_Tnode *tn = yaffs_GetTnodeRaw(dev); +- int tnodeSize = (dev->tnodeWidth * YAFFS_NTNODES_LEVEL0)/8; ++ obj->my_dev = dev; ++ obj->hdr_chunk = 0; ++ obj->variant_type = YAFFS_OBJECT_TYPE_UNKNOWN; ++ YINIT_LIST_HEAD(&(obj->hard_links)); ++ YINIT_LIST_HEAD(&(obj->hash_link)); ++ YINIT_LIST_HEAD(&obj->siblings); + +- if (tnodeSize < sizeof(yaffs_Tnode)) +- tnodeSize = sizeof(yaffs_Tnode); + +- if (tn) +- memset(tn, 0, tnodeSize); ++ /* Now make the directory sane */ ++ if (dev->root_dir) { ++ obj->parent = dev->root_dir; ++ ylist_add(&(obj->siblings), &dev->root_dir->variant.dir_variant.children); ++ } + +- return tn; ++ /* Add it to the lost and found directory. ++ * NB Can't put root or lostNFound in lostNFound so ++ * check if lostNFound exists first ++ */ ++ if (dev->lost_n_found) ++ yaffs_add_obj_to_dir(dev->lost_n_found, obj); ++ ++ obj->being_created = 0; ++ } ++ ++ dev->checkpoint_blocks_required = 0; /* force recalculation*/ ++ ++ return obj; + } + +-/* FreeTnode frees up a tnode and puts it back on the free list */ +-static void yaffs_FreeTnode(yaffs_Device *dev, yaffs_Tnode *tn) ++static yaffs_obj_t *yaffs_create_fake_dir(yaffs_dev_t *dev, int number, ++ __u32 mode) + { +- if (tn) { +-#ifdef CONFIG_YAFFS_TNODE_LIST_DEBUG +- if (tn->internal[YAFFS_NTNODES_INTERNAL] != 0) { +- /* Hoosterman, this thing looks like it is already in the list */ +- T(YAFFS_TRACE_ALWAYS, +- (TSTR("yaffs: Tnode list bug 2" TENDSTR))); +- } +- tn->internal[YAFFS_NTNODES_INTERNAL] = (void *)1; +-#endif +- tn->internal[0] = dev->freeTnodes; +- dev->freeTnodes = tn; +- dev->nFreeTnodes++; ++ ++ yaffs_obj_t *obj = ++ yaffs_new_obj(dev, number, YAFFS_OBJECT_TYPE_DIRECTORY); ++ if (obj) { ++ obj->fake = 1; /* it is fake so it might have no NAND presence... */ ++ obj->rename_allowed = 0; /* ... and we're not allowed to rename it... */ ++ obj->unlink_allowed = 0; /* ... or unlink it */ ++ obj->deleted = 0; ++ obj->unlinked = 0; ++ obj->yst_mode = mode; ++ obj->my_dev = dev; ++ obj->hdr_chunk = 0; /* Not a valid chunk. */ ++ } ++ ++ return obj; ++ ++} ++ ++static void yaffs_unhash_obj(yaffs_obj_t *obj) ++{ ++ int bucket; ++ yaffs_dev_t *dev = obj->my_dev; ++ ++ /* If it is still linked into the bucket list, free from the list */ ++ if (!ylist_empty(&obj->hash_link)) { ++ ylist_del_init(&obj->hash_link); ++ bucket = yaffs_hash_fn(obj->obj_id); ++ dev->obj_bucket[bucket].count--; + } +- dev->nCheckpointBlocksRequired = 0; /* force recalculation*/ + } + +-static void yaffs_DeinitialiseTnodes(yaffs_Device *dev) ++/* FreeObject frees up a Object and puts it back on the free list */ ++static void yaffs_free_obj(yaffs_obj_t *obj) + { +- /* Free the list of allocated tnodes */ +- yaffs_TnodeList *tmp; ++ yaffs_dev_t *dev = obj->my_dev; ++ ++ T(YAFFS_TRACE_OS, (TSTR("FreeObject %p inode %p"TENDSTR), obj, obj->my_inode)); + +- while (dev->allocatedTnodeList) { +- tmp = dev->allocatedTnodeList->next; ++ if (!obj) ++ YBUG(); ++ if (obj->parent) ++ YBUG(); ++ if (!ylist_empty(&obj->siblings)) ++ YBUG(); + +- YFREE(dev->allocatedTnodeList->tnodes); +- YFREE(dev->allocatedTnodeList); +- dev->allocatedTnodeList = tmp; + ++ if (obj->my_inode) { ++ /* We're still hooked up to a cached inode. ++ * Don't delete now, but mark for later deletion ++ */ ++ obj->defered_free = 1; ++ return; + } + +- dev->freeTnodes = NULL; +- dev->nFreeTnodes = 0; +-} ++ yaffs_unhash_obj(obj); + +-static void yaffs_InitialiseTnodes(yaffs_Device *dev) +-{ +- dev->allocatedTnodeList = NULL; +- dev->freeTnodes = NULL; +- dev->nFreeTnodes = 0; +- dev->nTnodesCreated = 0; ++ yaffs_free_raw_obj(dev,obj); ++ dev->n_obj--; ++ dev->checkpoint_blocks_required = 0; /* force recalculation*/ + } + + +-void yaffs_PutLevel0Tnode(yaffs_Device *dev, yaffs_Tnode *tn, unsigned pos, +- unsigned val) ++void yaffs_handle_defered_free(yaffs_obj_t *obj) + { +- __u32 *map = (__u32 *)tn; +- __u32 bitInMap; +- __u32 bitInWord; +- __u32 wordInMap; +- __u32 mask; +- +- pos &= YAFFS_TNODES_LEVEL0_MASK; +- val >>= dev->chunkGroupBits; ++ if (obj->defered_free) ++ yaffs_free_obj(obj); ++} + +- bitInMap = pos * dev->tnodeWidth; +- wordInMap = bitInMap / 32; +- bitInWord = bitInMap & (32 - 1); ++static void yaffs_init_tnodes_and_objs(yaffs_dev_t *dev) ++{ ++ int i; + +- mask = dev->tnodeMask << bitInWord; ++ dev->n_obj = 0; ++ dev->n_tnodes = 0; + +- map[wordInMap] &= ~mask; +- map[wordInMap] |= (mask & (val << bitInWord)); ++ yaffs_init_raw_tnodes_and_objs(dev); + +- if (dev->tnodeWidth > (32 - bitInWord)) { +- bitInWord = (32 - bitInWord); +- wordInMap++;; +- mask = dev->tnodeMask >> (/*dev->tnodeWidth -*/ bitInWord); +- map[wordInMap] &= ~mask; +- map[wordInMap] |= (mask & (val >> bitInWord)); ++ for (i = 0; i < YAFFS_NOBJECT_BUCKETS; i++) { ++ YINIT_LIST_HEAD(&dev->obj_bucket[i].list); ++ dev->obj_bucket[i].count = 0; + } + } + +-static __u32 yaffs_GetChunkGroupBase(yaffs_Device *dev, yaffs_Tnode *tn, +- unsigned pos) ++static int yaffs_find_nice_bucket(yaffs_dev_t *dev) + { +- __u32 *map = (__u32 *)tn; +- __u32 bitInMap; +- __u32 bitInWord; +- __u32 wordInMap; +- __u32 val; ++ int i; ++ int l = 999; ++ int lowest = 999999; + +- pos &= YAFFS_TNODES_LEVEL0_MASK; + +- bitInMap = pos * dev->tnodeWidth; +- wordInMap = bitInMap / 32; +- bitInWord = bitInMap & (32 - 1); ++ /* Search for the shortest list or one that ++ * isn't too long. ++ */ + +- val = map[wordInMap] >> bitInWord; ++ for (i = 0; i < 10 && lowest > 4; i++) { ++ dev->bucket_finder++; ++ dev->bucket_finder %= YAFFS_NOBJECT_BUCKETS; ++ if (dev->obj_bucket[dev->bucket_finder].count < lowest) { ++ lowest = dev->obj_bucket[dev->bucket_finder].count; ++ l = dev->bucket_finder; ++ } + +- if (dev->tnodeWidth > (32 - bitInWord)) { +- bitInWord = (32 - bitInWord); +- wordInMap++;; +- val |= (map[wordInMap] << bitInWord); + } + +- val &= dev->tnodeMask; +- val <<= dev->chunkGroupBits; +- +- return val; ++ return l; + } + +-/* ------------------- End of individual tnode manipulation -----------------*/ +- +-/* ---------Functions to manipulate the look-up tree (made up of tnodes) ------ +- * The look up tree is represented by the top tnode and the number of topLevel +- * in the tree. 0 means only the level 0 tnode is in the tree. +- */ +- +-/* FindLevel0Tnode finds the level 0 tnode, if one exists. */ +-static yaffs_Tnode *yaffs_FindLevel0Tnode(yaffs_Device *dev, +- yaffs_FileStructure *fStruct, +- __u32 chunkId) ++static int yaffs_new_obj_id(yaffs_dev_t *dev) + { +- yaffs_Tnode *tn = fStruct->top; +- __u32 i; +- int requiredTallness; +- int level = fStruct->topLevel; +- +- /* Check sane level and chunk Id */ +- if (level < 0 || level > YAFFS_TNODES_MAX_LEVEL) +- return NULL; ++ int bucket = yaffs_find_nice_bucket(dev); + +- if (chunkId > YAFFS_MAX_CHUNK_ID) +- return NULL; ++ /* Now find an object value that has not already been taken ++ * by scanning the list. ++ */ + +- /* First check we're tall enough (ie enough topLevel) */ ++ int found = 0; ++ struct ylist_head *i; + +- i = chunkId >> YAFFS_TNODES_LEVEL0_BITS; +- requiredTallness = 0; +- while (i) { +- i >>= YAFFS_TNODES_INTERNAL_BITS; +- requiredTallness++; +- } ++ __u32 n = (__u32) bucket; + +- if (requiredTallness > fStruct->topLevel) +- return NULL; /* Not tall enough, so we can't find it */ ++ /* yaffs_check_obj_hash_sane(); */ + +- /* Traverse down to level 0 */ +- while (level > 0 && tn) { +- tn = tn->internal[(chunkId >> +- (YAFFS_TNODES_LEVEL0_BITS + +- (level - 1) * +- YAFFS_TNODES_INTERNAL_BITS)) & +- YAFFS_TNODES_INTERNAL_MASK]; +- level--; ++ while (!found) { ++ found = 1; ++ n += YAFFS_NOBJECT_BUCKETS; ++ if (1 || dev->obj_bucket[bucket].count > 0) { ++ ylist_for_each(i, &dev->obj_bucket[bucket].list) { ++ /* If there is already one in the list */ ++ if (i && ylist_entry(i, yaffs_obj_t, ++ hash_link)->obj_id == n) { ++ found = 0; ++ } ++ } ++ } + } + +- return tn; ++ return n; + } + +-/* AddOrFindLevel0Tnode finds the level 0 tnode if it exists, otherwise first expands the tree. +- * This happens in two steps: +- * 1. If the tree isn't tall enough, then make it taller. +- * 2. Scan down the tree towards the level 0 tnode adding tnodes if required. +- * +- * Used when modifying the tree. +- * +- * If the tn argument is NULL, then a fresh tnode will be added otherwise the specified tn will +- * be plugged into the ttree. +- */ +- +-static yaffs_Tnode *yaffs_AddOrFindLevel0Tnode(yaffs_Device *dev, +- yaffs_FileStructure *fStruct, +- __u32 chunkId, +- yaffs_Tnode *passedTn) ++static void yaffs_hash_obj(yaffs_obj_t *in) + { +- int requiredTallness; +- int i; +- int l; +- yaffs_Tnode *tn; +- +- __u32 x; ++ int bucket = yaffs_hash_fn(in->obj_id); ++ yaffs_dev_t *dev = in->my_dev; + ++ ylist_add(&in->hash_link, &dev->obj_bucket[bucket].list); ++ dev->obj_bucket[bucket].count++; ++} + +- /* Check sane level and page Id */ +- if (fStruct->topLevel < 0 || fStruct->topLevel > YAFFS_TNODES_MAX_LEVEL) +- return NULL; ++yaffs_obj_t *yaffs_find_by_number(yaffs_dev_t *dev, __u32 number) ++{ ++ int bucket = yaffs_hash_fn(number); ++ struct ylist_head *i; ++ yaffs_obj_t *in; + +- if (chunkId > YAFFS_MAX_CHUNK_ID) +- return NULL; ++ ylist_for_each(i, &dev->obj_bucket[bucket].list) { ++ /* Look if it is in the list */ ++ if (i) { ++ in = ylist_entry(i, yaffs_obj_t, hash_link); ++ if (in->obj_id == number) { + +- /* First check we're tall enough (ie enough topLevel) */ ++ /* Don't tell the VFS about this one if it is defered free */ ++ if (in->defered_free) ++ return NULL; + +- x = chunkId >> YAFFS_TNODES_LEVEL0_BITS; +- requiredTallness = 0; +- while (x) { +- x >>= YAFFS_TNODES_INTERNAL_BITS; +- requiredTallness++; ++ return in; ++ } ++ } + } + ++ return NULL; ++} + +- if (requiredTallness > fStruct->topLevel) { +- /* Not tall enough, gotta make the tree taller */ +- for (i = fStruct->topLevel; i < requiredTallness; i++) { ++yaffs_obj_t *yaffs_new_obj(yaffs_dev_t *dev, int number, ++ yaffs_obj_type type) ++{ ++ yaffs_obj_t *theObject=NULL; ++ yaffs_tnode_t *tn = NULL; + +- tn = yaffs_GetTnode(dev); ++ if (number < 0) ++ number = yaffs_new_obj_id(dev); + +- if (tn) { +- tn->internal[0] = fStruct->top; +- fStruct->top = tn; +- } else { +- T(YAFFS_TRACE_ERROR, +- (TSTR("yaffs: no more tnodes" TENDSTR))); +- } +- } ++ if (type == YAFFS_OBJECT_TYPE_FILE) { ++ tn = yaffs_get_tnode(dev); ++ if (!tn) ++ return NULL; ++ } + +- fStruct->topLevel = requiredTallness; ++ theObject = yaffs_alloc_empty_obj(dev); ++ if (!theObject){ ++ if(tn) ++ yaffs_free_tnode(dev,tn); ++ return NULL; + } + +- /* Traverse down to level 0, adding anything we need */ + +- l = fStruct->topLevel; +- tn = fStruct->top; ++ if (theObject) { ++ theObject->fake = 0; ++ theObject->rename_allowed = 1; ++ theObject->unlink_allowed = 1; ++ theObject->obj_id = number; ++ yaffs_hash_obj(theObject); ++ theObject->variant_type = type; ++#ifdef CONFIG_YAFFS_WINCE ++ yfsd_win_file_time_now(theObject->win_atime); ++ theObject->win_ctime[0] = theObject->win_mtime[0] = ++ theObject->win_atime[0]; ++ theObject->win_ctime[1] = theObject->win_mtime[1] = ++ theObject->win_atime[1]; ++ ++#else + +- if (l > 0) { +- while (l > 0 && tn) { +- x = (chunkId >> +- (YAFFS_TNODES_LEVEL0_BITS + +- (l - 1) * YAFFS_TNODES_INTERNAL_BITS)) & +- YAFFS_TNODES_INTERNAL_MASK; ++ theObject->yst_atime = theObject->yst_mtime = ++ theObject->yst_ctime = Y_CURRENT_TIME; ++#endif ++ switch (type) { ++ case YAFFS_OBJECT_TYPE_FILE: ++ theObject->variant.file_variant.file_size = 0; ++ theObject->variant.file_variant.scanned_size = 0; ++ theObject->variant.file_variant.shrink_size = 0xFFFFFFFF; /* max __u32 */ ++ theObject->variant.file_variant.top_level = 0; ++ theObject->variant.file_variant.top = tn; ++ break; ++ case YAFFS_OBJECT_TYPE_DIRECTORY: ++ YINIT_LIST_HEAD(&theObject->variant.dir_variant. ++ children); ++ YINIT_LIST_HEAD(&theObject->variant.dir_variant. ++ dirty); ++ break; ++ case YAFFS_OBJECT_TYPE_SYMLINK: ++ case YAFFS_OBJECT_TYPE_HARDLINK: ++ case YAFFS_OBJECT_TYPE_SPECIAL: ++ /* No action required */ ++ break; ++ case YAFFS_OBJECT_TYPE_UNKNOWN: ++ /* todo this should not happen */ ++ break; ++ } ++ } + ++ return theObject; ++} + +- if ((l > 1) && !tn->internal[x]) { +- /* Add missing non-level-zero tnode */ +- tn->internal[x] = yaffs_GetTnode(dev); ++yaffs_obj_t *yaffs_find_or_create_by_number(yaffs_dev_t *dev, ++ int number, ++ yaffs_obj_type type) ++{ ++ yaffs_obj_t *theObject = NULL; + +- } else if (l == 1) { +- /* Looking from level 1 at level 0 */ +- if (passedTn) { +- /* If we already have one, then release it.*/ +- if (tn->internal[x]) +- yaffs_FreeTnode(dev, tn->internal[x]); +- tn->internal[x] = passedTn; ++ if (number > 0) ++ theObject = yaffs_find_by_number(dev, number); + +- } else if (!tn->internal[x]) { +- /* Don't have one, none passed in */ +- tn->internal[x] = yaffs_GetTnode(dev); +- } +- } ++ if (!theObject) ++ theObject = yaffs_new_obj(dev, number, type); + +- tn = tn->internal[x]; +- l--; +- } +- } else { +- /* top is level 0 */ +- if (passedTn) { +- memcpy(tn, passedTn, (dev->tnodeWidth * YAFFS_NTNODES_LEVEL0)/8); +- yaffs_FreeTnode(dev, passedTn); +- } +- } ++ return theObject; + +- return tn; + } + +-static int yaffs_FindChunkInGroup(yaffs_Device *dev, int theChunk, +- yaffs_ExtendedTags *tags, int objectId, +- int chunkInInode) ++ ++YCHAR *yaffs_clone_str(const YCHAR *str) + { +- int j; ++ YCHAR *newStr = NULL; ++ int len; + +- for (j = 0; theChunk && j < dev->chunkGroupSize; j++) { +- if (yaffs_CheckChunkBit(dev, theChunk / dev->nChunksPerBlock, +- theChunk % dev->nChunksPerBlock)) { +- yaffs_ReadChunkWithTagsFromNAND(dev, theChunk, NULL, +- tags); +- if (yaffs_TagsMatch(tags, objectId, chunkInInode)) { +- /* found it; */ +- return theChunk; +- } +- } +- theChunk++; ++ if (!str) ++ str = _Y(""); ++ ++ len = yaffs_strnlen(str,YAFFS_MAX_ALIAS_LENGTH); ++ newStr = YMALLOC((len + 1) * sizeof(YCHAR)); ++ if (newStr){ ++ yaffs_strncpy(newStr, str,len); ++ newStr[len] = 0; + } +- return -1; +-} ++ return newStr; + ++} + +-/* DeleteWorker scans backwards through the tnode tree and deletes all the +- * chunks and tnodes in the file +- * Returns 1 if the tree was deleted. +- * Returns 0 if it stopped early due to hitting the limit and the delete is incomplete. ++/* ++ * Mknod (create) a new object. ++ * equiv_obj only has meaning for a hard link; ++ * aliasString only has meaning for a symlink. ++ * rdev only has meaning for devices (a subset of special objects) + */ + +-static int yaffs_DeleteWorker(yaffs_Object *in, yaffs_Tnode *tn, __u32 level, +- int chunkOffset, int *limit) ++static yaffs_obj_t *yaffs_create_obj(yaffs_obj_type type, ++ yaffs_obj_t *parent, ++ const YCHAR *name, ++ __u32 mode, ++ __u32 uid, ++ __u32 gid, ++ yaffs_obj_t *equiv_obj, ++ const YCHAR *aliasString, __u32 rdev) + { +- int i; +- int chunkInInode; +- int theChunk; +- yaffs_ExtendedTags tags; +- int foundChunk; +- yaffs_Device *dev = in->myDev; +- +- int allDone = 1; +- +- if (tn) { +- if (level > 0) { +- for (i = YAFFS_NTNODES_INTERNAL - 1; allDone && i >= 0; +- i--) { +- if (tn->internal[i]) { +- if (limit && (*limit) < 0) { +- allDone = 0; +- } else { +- allDone = +- yaffs_DeleteWorker(in, +- tn-> +- internal +- [i], +- level - +- 1, +- (chunkOffset +- << +- YAFFS_TNODES_INTERNAL_BITS) +- + i, +- limit); +- } +- if (allDone) { +- yaffs_FreeTnode(dev, +- tn-> +- internal[i]); +- tn->internal[i] = NULL; +- } +- } +- } +- return (allDone) ? 1 : 0; +- } else if (level == 0) { +- int hitLimit = 0; +- +- for (i = YAFFS_NTNODES_LEVEL0 - 1; i >= 0 && !hitLimit; +- i--) { +- theChunk = yaffs_GetChunkGroupBase(dev, tn, i); +- if (theChunk) { +- +- chunkInInode = (chunkOffset << +- YAFFS_TNODES_LEVEL0_BITS) + i; +- +- foundChunk = +- yaffs_FindChunkInGroup(dev, +- theChunk, +- &tags, +- in->objectId, +- chunkInInode); +- +- if (foundChunk > 0) { +- yaffs_DeleteChunk(dev, +- foundChunk, 1, +- __LINE__); +- in->nDataChunks--; +- if (limit) { +- *limit = *limit - 1; +- if (*limit <= 0) +- hitLimit = 1; +- } +- +- } +- +- yaffs_PutLevel0Tnode(dev, tn, i, 0); +- } +- +- } +- return (i < 0) ? 1 : 0; +- +- } +- +- } +- +- return 1; +- +-} +- +-static void yaffs_SoftDeleteChunk(yaffs_Device *dev, int chunk) +-{ +- yaffs_BlockInfo *theBlock; +- +- T(YAFFS_TRACE_DELETION, (TSTR("soft delete chunk %d" TENDSTR), chunk)); +- +- theBlock = yaffs_GetBlockInfo(dev, chunk / dev->nChunksPerBlock); +- if (theBlock) { +- theBlock->softDeletions++; +- dev->nFreeChunks++; +- } +-} +- +-/* SoftDeleteWorker scans backwards through the tnode tree and soft deletes all the chunks in the file. +- * All soft deleting does is increment the block's softdelete count and pulls the chunk out +- * of the tnode. +- * Thus, essentially this is the same as DeleteWorker except that the chunks are soft deleted. +- */ +- +-static int yaffs_SoftDeleteWorker(yaffs_Object *in, yaffs_Tnode *tn, +- __u32 level, int chunkOffset) +-{ +- int i; +- int theChunk; +- int allDone = 1; +- yaffs_Device *dev = in->myDev; +- +- if (tn) { +- if (level > 0) { +- +- for (i = YAFFS_NTNODES_INTERNAL - 1; allDone && i >= 0; +- i--) { +- if (tn->internal[i]) { +- allDone = +- yaffs_SoftDeleteWorker(in, +- tn-> +- internal[i], +- level - 1, +- (chunkOffset +- << +- YAFFS_TNODES_INTERNAL_BITS) +- + i); +- if (allDone) { +- yaffs_FreeTnode(dev, +- tn-> +- internal[i]); +- tn->internal[i] = NULL; +- } else { +- /* Hoosterman... how could this happen? */ +- } +- } +- } +- return (allDone) ? 1 : 0; +- } else if (level == 0) { +- +- for (i = YAFFS_NTNODES_LEVEL0 - 1; i >= 0; i--) { +- theChunk = yaffs_GetChunkGroupBase(dev, tn, i); +- if (theChunk) { +- /* Note this does not find the real chunk, only the chunk group. +- * We make an assumption that a chunk group is not larger than +- * a block. +- */ +- yaffs_SoftDeleteChunk(dev, theChunk); +- yaffs_PutLevel0Tnode(dev, tn, i, 0); +- } +- +- } +- return 1; +- +- } +- +- } +- +- return 1; +- +-} +- +-static void yaffs_SoftDeleteFile(yaffs_Object *obj) +-{ +- if (obj->deleted && +- obj->variantType == YAFFS_OBJECT_TYPE_FILE && !obj->softDeleted) { +- if (obj->nDataChunks <= 0) { +- /* Empty file with no duplicate object headers, just delete it immediately */ +- yaffs_FreeTnode(obj->myDev, +- obj->variant.fileVariant.top); +- obj->variant.fileVariant.top = NULL; +- T(YAFFS_TRACE_TRACING, +- (TSTR("yaffs: Deleting empty file %d" TENDSTR), +- obj->objectId)); +- yaffs_DoGenericObjectDeletion(obj); +- } else { +- yaffs_SoftDeleteWorker(obj, +- obj->variant.fileVariant.top, +- obj->variant.fileVariant. +- topLevel, 0); +- obj->softDeleted = 1; +- } +- } +-} +- +-/* Pruning removes any part of the file structure tree that is beyond the +- * bounds of the file (ie that does not point to chunks). +- * +- * A file should only get pruned when its size is reduced. +- * +- * Before pruning, the chunks must be pulled from the tree and the +- * level 0 tnode entries must be zeroed out. +- * Could also use this for file deletion, but that's probably better handled +- * by a special case. +- */ +- +-static yaffs_Tnode *yaffs_PruneWorker(yaffs_Device *dev, yaffs_Tnode *tn, +- __u32 level, int del0) +-{ +- int i; +- int hasData; +- +- if (tn) { +- hasData = 0; +- +- for (i = 0; i < YAFFS_NTNODES_INTERNAL; i++) { +- if (tn->internal[i] && level > 0) { +- tn->internal[i] = +- yaffs_PruneWorker(dev, tn->internal[i], +- level - 1, +- (i == 0) ? del0 : 1); +- } +- +- if (tn->internal[i]) +- hasData++; +- } +- +- if (hasData == 0 && del0) { +- /* Free and return NULL */ +- +- yaffs_FreeTnode(dev, tn); +- tn = NULL; +- } +- +- } +- +- return tn; +- +-} +- +-static int yaffs_PruneFileStructure(yaffs_Device *dev, +- yaffs_FileStructure *fStruct) +-{ +- int i; +- int hasData; +- int done = 0; +- yaffs_Tnode *tn; +- +- if (fStruct->topLevel > 0) { +- fStruct->top = +- yaffs_PruneWorker(dev, fStruct->top, fStruct->topLevel, 0); +- +- /* Now we have a tree with all the non-zero branches NULL but the height +- * is the same as it was. +- * Let's see if we can trim internal tnodes to shorten the tree. +- * We can do this if only the 0th element in the tnode is in use +- * (ie all the non-zero are NULL) +- */ +- +- while (fStruct->topLevel && !done) { +- tn = fStruct->top; +- +- hasData = 0; +- for (i = 1; i < YAFFS_NTNODES_INTERNAL; i++) { +- if (tn->internal[i]) +- hasData++; +- } +- +- if (!hasData) { +- fStruct->top = tn->internal[0]; +- fStruct->topLevel--; +- yaffs_FreeTnode(dev, tn); +- } else { +- done = 1; +- } +- } +- } +- +- return YAFFS_OK; +-} +- +-/*-------------------- End of File Structure functions.-------------------*/ +- +-/* yaffs_CreateFreeObjects creates a bunch more objects and +- * adds them to the object free list. +- */ +-static int yaffs_CreateFreeObjects(yaffs_Device *dev, int nObjects) +-{ +- int i; +- yaffs_Object *newObjects; +- yaffs_ObjectList *list; +- +- if (nObjects < 1) +- return YAFFS_OK; +- +- /* make these things */ +- newObjects = YMALLOC(nObjects * sizeof(yaffs_Object)); +- list = YMALLOC(sizeof(yaffs_ObjectList)); +- +- if (!newObjects || !list) { +- if (newObjects) +- YFREE(newObjects); +- if (list) +- YFREE(list); +- T(YAFFS_TRACE_ALLOCATE, +- (TSTR("yaffs: Could not allocate more objects" TENDSTR))); +- return YAFFS_FAIL; +- } +- +- /* Hook them into the free list */ +- for (i = 0; i < nObjects - 1; i++) { +- newObjects[i].siblings.next = +- (struct ylist_head *)(&newObjects[i + 1]); +- } +- +- newObjects[nObjects - 1].siblings.next = (void *)dev->freeObjects; +- dev->freeObjects = newObjects; +- dev->nFreeObjects += nObjects; +- dev->nObjectsCreated += nObjects; +- +- /* Now add this bunch of Objects to a list for freeing up. */ +- +- list->objects = newObjects; +- list->next = dev->allocatedObjectList; +- dev->allocatedObjectList = list; +- +- return YAFFS_OK; +-} +- +- +-/* AllocateEmptyObject gets us a clean Object. Tries to make allocate more if we run out */ +-static yaffs_Object *yaffs_AllocateEmptyObject(yaffs_Device *dev) +-{ +- yaffs_Object *tn = NULL; +- +-#ifdef VALGRIND_TEST +- tn = YMALLOC(sizeof(yaffs_Object)); +-#else +- /* If there are none left make more */ +- if (!dev->freeObjects) +- yaffs_CreateFreeObjects(dev, YAFFS_ALLOCATION_NOBJECTS); +- +- if (dev->freeObjects) { +- tn = dev->freeObjects; +- dev->freeObjects = +- (yaffs_Object *) (dev->freeObjects->siblings.next); +- dev->nFreeObjects--; +- } +-#endif +- if (tn) { +- /* Now sweeten it up... */ +- +- memset(tn, 0, sizeof(yaffs_Object)); +- tn->beingCreated = 1; +- +- tn->myDev = dev; +- tn->hdrChunk = 0; +- tn->variantType = YAFFS_OBJECT_TYPE_UNKNOWN; +- YINIT_LIST_HEAD(&(tn->hardLinks)); +- YINIT_LIST_HEAD(&(tn->hashLink)); +- YINIT_LIST_HEAD(&tn->siblings); +- +- +- /* Now make the directory sane */ +- if (dev->rootDir) { +- tn->parent = dev->rootDir; +- ylist_add(&(tn->siblings), &dev->rootDir->variant.directoryVariant.children); +- } +- +- /* Add it to the lost and found directory. +- * NB Can't put root or lostNFound in lostNFound so +- * check if lostNFound exists first +- */ +- if (dev->lostNFoundDir) +- yaffs_AddObjectToDirectory(dev->lostNFoundDir, tn); +- +- tn->beingCreated = 0; +- } +- +- dev->nCheckpointBlocksRequired = 0; /* force recalculation*/ +- +- return tn; +-} +- +-static yaffs_Object *yaffs_CreateFakeDirectory(yaffs_Device *dev, int number, +- __u32 mode) +-{ +- +- yaffs_Object *obj = +- yaffs_CreateNewObject(dev, number, YAFFS_OBJECT_TYPE_DIRECTORY); +- if (obj) { +- obj->fake = 1; /* it is fake so it might have no NAND presence... */ +- obj->renameAllowed = 0; /* ... and we're not allowed to rename it... */ +- obj->unlinkAllowed = 0; /* ... or unlink it */ +- obj->deleted = 0; +- obj->unlinked = 0; +- obj->yst_mode = mode; +- obj->myDev = dev; +- obj->hdrChunk = 0; /* Not a valid chunk. */ +- } +- +- return obj; +- +-} +- +-static void yaffs_UnhashObject(yaffs_Object *tn) +-{ +- int bucket; +- yaffs_Device *dev = tn->myDev; +- +- /* If it is still linked into the bucket list, free from the list */ +- if (!ylist_empty(&tn->hashLink)) { +- ylist_del_init(&tn->hashLink); +- bucket = yaffs_HashFunction(tn->objectId); +- dev->objectBucket[bucket].count--; +- } +-} +- +-/* FreeObject frees up a Object and puts it back on the free list */ +-static void yaffs_FreeObject(yaffs_Object *tn) +-{ +- yaffs_Device *dev = tn->myDev; +- +-#ifdef __KERNEL__ +- T(YAFFS_TRACE_OS, (TSTR("FreeObject %p inode %p"TENDSTR), tn, tn->myInode)); +-#endif +- +- if (tn->parent) +- YBUG(); +- if (!ylist_empty(&tn->siblings)) +- YBUG(); +- +- +-#ifdef __KERNEL__ +- if (tn->myInode) { +- /* We're still hooked up to a cached inode. +- * Don't delete now, but mark for later deletion +- */ +- tn->deferedFree = 1; +- return; +- } +-#endif +- +- yaffs_UnhashObject(tn); +- +-#ifdef VALGRIND_TEST +- YFREE(tn); +-#else +- /* Link into the free list. */ +- tn->siblings.next = (struct ylist_head *)(dev->freeObjects); +- dev->freeObjects = tn; +- dev->nFreeObjects++; +-#endif +- dev->nCheckpointBlocksRequired = 0; /* force recalculation*/ +-} +- +-#ifdef __KERNEL__ +- +-void yaffs_HandleDeferedFree(yaffs_Object *obj) +-{ +- if (obj->deferedFree) +- yaffs_FreeObject(obj); +-} +- +-#endif +- +-static void yaffs_DeinitialiseObjects(yaffs_Device *dev) +-{ +- /* Free the list of allocated Objects */ +- +- yaffs_ObjectList *tmp; +- +- while (dev->allocatedObjectList) { +- tmp = dev->allocatedObjectList->next; +- YFREE(dev->allocatedObjectList->objects); +- YFREE(dev->allocatedObjectList); +- +- dev->allocatedObjectList = tmp; +- } +- +- dev->freeObjects = NULL; +- dev->nFreeObjects = 0; +-} +- +-static void yaffs_InitialiseObjects(yaffs_Device *dev) +-{ +- int i; +- +- dev->allocatedObjectList = NULL; +- dev->freeObjects = NULL; +- dev->nFreeObjects = 0; +- +- for (i = 0; i < YAFFS_NOBJECT_BUCKETS; i++) { +- YINIT_LIST_HEAD(&dev->objectBucket[i].list); +- dev->objectBucket[i].count = 0; +- } +-} +- +-static int yaffs_FindNiceObjectBucket(yaffs_Device *dev) +-{ +- static int x; +- int i; +- int l = 999; +- int lowest = 999999; +- +- /* First let's see if we can find one that's empty. */ +- +- for (i = 0; i < 10 && lowest > 0; i++) { +- x++; +- x %= YAFFS_NOBJECT_BUCKETS; +- if (dev->objectBucket[x].count < lowest) { +- lowest = dev->objectBucket[x].count; +- l = x; +- } +- +- } +- +- /* If we didn't find an empty list, then try +- * looking a bit further for a short one +- */ +- +- for (i = 0; i < 10 && lowest > 3; i++) { +- x++; +- x %= YAFFS_NOBJECT_BUCKETS; +- if (dev->objectBucket[x].count < lowest) { +- lowest = dev->objectBucket[x].count; +- l = x; +- } +- +- } +- +- return l; +-} +- +-static int yaffs_CreateNewObjectNumber(yaffs_Device *dev) +-{ +- int bucket = yaffs_FindNiceObjectBucket(dev); +- +- /* Now find an object value that has not already been taken +- * by scanning the list. +- */ +- +- int found = 0; +- struct ylist_head *i; +- +- __u32 n = (__u32) bucket; +- +- /* yaffs_CheckObjectHashSanity(); */ +- +- while (!found) { +- found = 1; +- n += YAFFS_NOBJECT_BUCKETS; +- if (1 || dev->objectBucket[bucket].count > 0) { +- ylist_for_each(i, &dev->objectBucket[bucket].list) { +- /* If there is already one in the list */ +- if (i && ylist_entry(i, yaffs_Object, +- hashLink)->objectId == n) { +- found = 0; +- } +- } +- } +- } +- +- return n; +-} +- +-static void yaffs_HashObject(yaffs_Object *in) +-{ +- int bucket = yaffs_HashFunction(in->objectId); +- yaffs_Device *dev = in->myDev; +- +- ylist_add(&in->hashLink, &dev->objectBucket[bucket].list); +- dev->objectBucket[bucket].count++; +-} +- +-yaffs_Object *yaffs_FindObjectByNumber(yaffs_Device *dev, __u32 number) +-{ +- int bucket = yaffs_HashFunction(number); +- struct ylist_head *i; +- yaffs_Object *in; +- +- ylist_for_each(i, &dev->objectBucket[bucket].list) { +- /* Look if it is in the list */ +- if (i) { +- in = ylist_entry(i, yaffs_Object, hashLink); +- if (in->objectId == number) { +-#ifdef __KERNEL__ +- /* Don't tell the VFS about this one if it is defered free */ +- if (in->deferedFree) +- return NULL; +-#endif +- +- return in; +- } +- } +- } +- +- return NULL; +-} +- +-yaffs_Object *yaffs_CreateNewObject(yaffs_Device *dev, int number, +- yaffs_ObjectType type) +-{ +- yaffs_Object *theObject; +- yaffs_Tnode *tn = NULL; +- +- if (number < 0) +- number = yaffs_CreateNewObjectNumber(dev); +- +- theObject = yaffs_AllocateEmptyObject(dev); +- if (!theObject) +- return NULL; +- +- if (type == YAFFS_OBJECT_TYPE_FILE) { +- tn = yaffs_GetTnode(dev); +- if (!tn) { +- yaffs_FreeObject(theObject); +- return NULL; +- } +- } +- +- if (theObject) { +- theObject->fake = 0; +- theObject->renameAllowed = 1; +- theObject->unlinkAllowed = 1; +- theObject->objectId = number; +- yaffs_HashObject(theObject); +- theObject->variantType = type; +-#ifdef CONFIG_YAFFS_WINCE +- yfsd_WinFileTimeNow(theObject->win_atime); +- theObject->win_ctime[0] = theObject->win_mtime[0] = +- theObject->win_atime[0]; +- theObject->win_ctime[1] = theObject->win_mtime[1] = +- theObject->win_atime[1]; +- +-#else +- +- theObject->yst_atime = theObject->yst_mtime = +- theObject->yst_ctime = Y_CURRENT_TIME; +-#endif +- switch (type) { +- case YAFFS_OBJECT_TYPE_FILE: +- theObject->variant.fileVariant.fileSize = 0; +- theObject->variant.fileVariant.scannedFileSize = 0; +- theObject->variant.fileVariant.shrinkSize = 0xFFFFFFFF; /* max __u32 */ +- theObject->variant.fileVariant.topLevel = 0; +- theObject->variant.fileVariant.top = tn; +- break; +- case YAFFS_OBJECT_TYPE_DIRECTORY: +- YINIT_LIST_HEAD(&theObject->variant.directoryVariant. +- children); +- break; +- case YAFFS_OBJECT_TYPE_SYMLINK: +- case YAFFS_OBJECT_TYPE_HARDLINK: +- case YAFFS_OBJECT_TYPE_SPECIAL: +- /* No action required */ +- break; +- case YAFFS_OBJECT_TYPE_UNKNOWN: +- /* todo this should not happen */ +- break; +- } +- } +- +- return theObject; +-} +- +-static yaffs_Object *yaffs_FindOrCreateObjectByNumber(yaffs_Device *dev, +- int number, +- yaffs_ObjectType type) +-{ +- yaffs_Object *theObject = NULL; +- +- if (number > 0) +- theObject = yaffs_FindObjectByNumber(dev, number); +- +- if (!theObject) +- theObject = yaffs_CreateNewObject(dev, number, type); +- +- return theObject; +- +-} +- +- +-static YCHAR *yaffs_CloneString(const YCHAR *str) +-{ +- YCHAR *newStr = NULL; +- +- if (str && *str) { +- newStr = YMALLOC((yaffs_strlen(str) + 1) * sizeof(YCHAR)); +- if (newStr) +- yaffs_strcpy(newStr, str); +- } +- +- return newStr; +- +-} +- +-/* +- * Mknod (create) a new object. +- * equivalentObject only has meaning for a hard link; +- * aliasString only has meaning for a sumlink. +- * rdev only has meaning for devices (a subset of special objects) +- */ +- +-static yaffs_Object *yaffs_MknodObject(yaffs_ObjectType type, +- yaffs_Object *parent, +- const YCHAR *name, +- __u32 mode, +- __u32 uid, +- __u32 gid, +- yaffs_Object *equivalentObject, +- const YCHAR *aliasString, __u32 rdev) +-{ +- yaffs_Object *in; +- YCHAR *str = NULL; +- +- yaffs_Device *dev = parent->myDev; +- +- /* Check if the entry exists. If it does then fail the call since we don't want a dup.*/ +- if (yaffs_FindObjectByName(parent, name)) +- return NULL; +- +- in = yaffs_CreateNewObject(dev, -1, type); +- +- if (!in) +- return YAFFS_FAIL; +- +- if (type == YAFFS_OBJECT_TYPE_SYMLINK) { +- str = yaffs_CloneString(aliasString); +- if (!str) { +- yaffs_FreeObject(in); +- return NULL; +- } +- } +- +- +- +- if (in) { +- in->hdrChunk = 0; +- in->valid = 1; +- in->variantType = type; +- +- in->yst_mode = mode; +- +-#ifdef CONFIG_YAFFS_WINCE +- yfsd_WinFileTimeNow(in->win_atime); +- in->win_ctime[0] = in->win_mtime[0] = in->win_atime[0]; +- in->win_ctime[1] = in->win_mtime[1] = in->win_atime[1]; +- +-#else +- in->yst_atime = in->yst_mtime = in->yst_ctime = Y_CURRENT_TIME; +- +- in->yst_rdev = rdev; +- in->yst_uid = uid; +- in->yst_gid = gid; +-#endif +- in->nDataChunks = 0; +- +- yaffs_SetObjectName(in, name); +- in->dirty = 1; +- +- yaffs_AddObjectToDirectory(parent, in); +- +- in->myDev = parent->myDev; +- +- switch (type) { +- case YAFFS_OBJECT_TYPE_SYMLINK: +- in->variant.symLinkVariant.alias = str; +- break; +- case YAFFS_OBJECT_TYPE_HARDLINK: +- in->variant.hardLinkVariant.equivalentObject = +- equivalentObject; +- in->variant.hardLinkVariant.equivalentObjectId = +- equivalentObject->objectId; +- ylist_add(&in->hardLinks, &equivalentObject->hardLinks); +- break; +- case YAFFS_OBJECT_TYPE_FILE: +- case YAFFS_OBJECT_TYPE_DIRECTORY: +- case YAFFS_OBJECT_TYPE_SPECIAL: +- case YAFFS_OBJECT_TYPE_UNKNOWN: +- /* do nothing */ +- break; +- } +- +- if (yaffs_UpdateObjectHeader(in, name, 0, 0, 0) < 0) { +- /* Could not create the object header, fail the creation */ +- yaffs_DeleteObject(in); +- in = NULL; +- } +- +- } +- +- return in; +-} +- +-yaffs_Object *yaffs_MknodFile(yaffs_Object *parent, const YCHAR *name, +- __u32 mode, __u32 uid, __u32 gid) +-{ +- return yaffs_MknodObject(YAFFS_OBJECT_TYPE_FILE, parent, name, mode, +- uid, gid, NULL, NULL, 0); +-} +- +-yaffs_Object *yaffs_MknodDirectory(yaffs_Object *parent, const YCHAR *name, +- __u32 mode, __u32 uid, __u32 gid) +-{ +- return yaffs_MknodObject(YAFFS_OBJECT_TYPE_DIRECTORY, parent, name, +- mode, uid, gid, NULL, NULL, 0); +-} +- +-yaffs_Object *yaffs_MknodSpecial(yaffs_Object *parent, const YCHAR *name, +- __u32 mode, __u32 uid, __u32 gid, __u32 rdev) +-{ +- return yaffs_MknodObject(YAFFS_OBJECT_TYPE_SPECIAL, parent, name, mode, +- uid, gid, NULL, NULL, rdev); +-} +- +-yaffs_Object *yaffs_MknodSymLink(yaffs_Object *parent, const YCHAR *name, +- __u32 mode, __u32 uid, __u32 gid, +- const YCHAR *alias) +-{ +- return yaffs_MknodObject(YAFFS_OBJECT_TYPE_SYMLINK, parent, name, mode, +- uid, gid, NULL, alias, 0); +-} +- +-/* yaffs_Link returns the object id of the equivalent object.*/ +-yaffs_Object *yaffs_Link(yaffs_Object *parent, const YCHAR *name, +- yaffs_Object *equivalentObject) +-{ +- /* Get the real object in case we were fed a hard link as an equivalent object */ +- equivalentObject = yaffs_GetEquivalentObject(equivalentObject); +- +- if (yaffs_MknodObject +- (YAFFS_OBJECT_TYPE_HARDLINK, parent, name, 0, 0, 0, +- equivalentObject, NULL, 0)) { +- return equivalentObject; +- } else { +- return NULL; +- } +- +-} +- +-static int yaffs_ChangeObjectName(yaffs_Object *obj, yaffs_Object *newDir, +- const YCHAR *newName, int force, int shadows) +-{ +- int unlinkOp; +- int deleteOp; +- +- yaffs_Object *existingTarget; +- +- if (newDir == NULL) +- newDir = obj->parent; /* use the old directory */ +- +- if (newDir->variantType != YAFFS_OBJECT_TYPE_DIRECTORY) { +- T(YAFFS_TRACE_ALWAYS, +- (TSTR +- ("tragedy: yaffs_ChangeObjectName: newDir is not a directory" +- TENDSTR))); +- YBUG(); +- } +- +- /* TODO: Do we need this different handling for YAFFS2 and YAFFS1?? */ +- if (obj->myDev->isYaffs2) +- unlinkOp = (newDir == obj->myDev->unlinkedDir); +- else +- unlinkOp = (newDir == obj->myDev->unlinkedDir +- && obj->variantType == YAFFS_OBJECT_TYPE_FILE); +- +- deleteOp = (newDir == obj->myDev->deletedDir); +- +- existingTarget = yaffs_FindObjectByName(newDir, newName); +- +- /* If the object is a file going into the unlinked directory, +- * then it is OK to just stuff it in since duplicate names are allowed. +- * else only proceed if the new name does not exist and if we're putting +- * it into a directory. +- */ +- if ((unlinkOp || +- deleteOp || +- force || +- (shadows > 0) || +- !existingTarget) && +- newDir->variantType == YAFFS_OBJECT_TYPE_DIRECTORY) { +- yaffs_SetObjectName(obj, newName); +- obj->dirty = 1; +- +- yaffs_AddObjectToDirectory(newDir, obj); +- +- if (unlinkOp) +- obj->unlinked = 1; +- +- /* If it is a deletion then we mark it as a shrink for gc purposes. */ +- if (yaffs_UpdateObjectHeader(obj, newName, 0, deleteOp, shadows) >= 0) +- return YAFFS_OK; +- } +- +- return YAFFS_FAIL; +-} +- +-int yaffs_RenameObject(yaffs_Object *oldDir, const YCHAR *oldName, +- yaffs_Object *newDir, const YCHAR *newName) +-{ +- yaffs_Object *obj = NULL; +- yaffs_Object *existingTarget = NULL; +- int force = 0; +- +- +- if (!oldDir || oldDir->variantType != YAFFS_OBJECT_TYPE_DIRECTORY) +- YBUG(); +- if (!newDir || newDir->variantType != YAFFS_OBJECT_TYPE_DIRECTORY) +- YBUG(); +- +-#ifdef CONFIG_YAFFS_CASE_INSENSITIVE +- /* Special case for case insemsitive systems (eg. WinCE). +- * While look-up is case insensitive, the name isn't. +- * Therefore we might want to change x.txt to X.txt +- */ +- if (oldDir == newDir && yaffs_strcmp(oldName, newName) == 0) +- force = 1; +-#endif +- +- else if (yaffs_strlen(newName) > YAFFS_MAX_NAME_LENGTH) +- /* ENAMETOOLONG */ +- return YAFFS_FAIL; +- +- obj = yaffs_FindObjectByName(oldDir, oldName); +- +- if (obj && obj->renameAllowed) { +- +- /* Now do the handling for an existing target, if there is one */ +- +- existingTarget = yaffs_FindObjectByName(newDir, newName); +- if (existingTarget && +- existingTarget->variantType == YAFFS_OBJECT_TYPE_DIRECTORY && +- !ylist_empty(&existingTarget->variant.directoryVariant.children)) { +- /* There is a target that is a non-empty directory, so we fail */ +- return YAFFS_FAIL; /* EEXIST or ENOTEMPTY */ +- } else if (existingTarget && existingTarget != obj) { +- /* Nuke the target first, using shadowing, +- * but only if it isn't the same object +- */ +- yaffs_ChangeObjectName(obj, newDir, newName, force, +- existingTarget->objectId); +- yaffs_UnlinkObject(existingTarget); +- } +- +- return yaffs_ChangeObjectName(obj, newDir, newName, 1, 0); +- } +- return YAFFS_FAIL; +-} +- +-/*------------------------- Block Management and Page Allocation ----------------*/ +- +-static int yaffs_InitialiseBlocks(yaffs_Device *dev) +-{ +- int nBlocks = dev->internalEndBlock - dev->internalStartBlock + 1; +- +- dev->blockInfo = NULL; +- dev->chunkBits = NULL; +- +- dev->allocationBlock = -1; /* force it to get a new one */ +- +- /* If the first allocation strategy fails, thry the alternate one */ +- dev->blockInfo = YMALLOC(nBlocks * sizeof(yaffs_BlockInfo)); +- if (!dev->blockInfo) { +- dev->blockInfo = YMALLOC_ALT(nBlocks * sizeof(yaffs_BlockInfo)); +- dev->blockInfoAlt = 1; +- } else +- dev->blockInfoAlt = 0; +- +- if (dev->blockInfo) { +- /* Set up dynamic blockinfo stuff. */ +- dev->chunkBitmapStride = (dev->nChunksPerBlock + 7) / 8; /* round up bytes */ +- dev->chunkBits = YMALLOC(dev->chunkBitmapStride * nBlocks); +- if (!dev->chunkBits) { +- dev->chunkBits = YMALLOC_ALT(dev->chunkBitmapStride * nBlocks); +- dev->chunkBitsAlt = 1; +- } else +- dev->chunkBitsAlt = 0; +- } +- +- if (dev->blockInfo && dev->chunkBits) { +- memset(dev->blockInfo, 0, nBlocks * sizeof(yaffs_BlockInfo)); +- memset(dev->chunkBits, 0, dev->chunkBitmapStride * nBlocks); +- return YAFFS_OK; +- } +- +- return YAFFS_FAIL; +-} +- +-static void yaffs_DeinitialiseBlocks(yaffs_Device *dev) +-{ +- if (dev->blockInfoAlt && dev->blockInfo) +- YFREE_ALT(dev->blockInfo); +- else if (dev->blockInfo) +- YFREE(dev->blockInfo); +- +- dev->blockInfoAlt = 0; +- +- dev->blockInfo = NULL; +- +- if (dev->chunkBitsAlt && dev->chunkBits) +- YFREE_ALT(dev->chunkBits); +- else if (dev->chunkBits) +- YFREE(dev->chunkBits); +- dev->chunkBitsAlt = 0; +- dev->chunkBits = NULL; +-} +- +-static int yaffs_BlockNotDisqualifiedFromGC(yaffs_Device *dev, +- yaffs_BlockInfo *bi) +-{ +- int i; +- __u32 seq; +- yaffs_BlockInfo *b; +- +- if (!dev->isYaffs2) +- return 1; /* disqualification only applies to yaffs2. */ +- +- if (!bi->hasShrinkHeader) +- return 1; /* can gc */ +- +- /* Find the oldest dirty sequence number if we don't know it and save it +- * so we don't have to keep recomputing it. +- */ +- if (!dev->oldestDirtySequence) { +- seq = dev->sequenceNumber; +- +- for (i = dev->internalStartBlock; i <= dev->internalEndBlock; +- i++) { +- b = yaffs_GetBlockInfo(dev, i); +- if (b->blockState == YAFFS_BLOCK_STATE_FULL && +- (b->pagesInUse - b->softDeletions) < +- dev->nChunksPerBlock && b->sequenceNumber < seq) { +- seq = b->sequenceNumber; +- } +- } +- dev->oldestDirtySequence = seq; +- } +- +- /* Can't do gc of this block if there are any blocks older than this one that have +- * discarded pages. +- */ +- return (bi->sequenceNumber <= dev->oldestDirtySequence); +-} +- +-/* FindDiretiestBlock is used to select the dirtiest block (or close enough) +- * for garbage collection. +- */ +- +-static int yaffs_FindBlockForGarbageCollection(yaffs_Device *dev, +- int aggressive) +-{ +- int b = dev->currentDirtyChecker; +- +- int i; +- int iterations; +- int dirtiest = -1; +- int pagesInUse = 0; +- int prioritised = 0; +- yaffs_BlockInfo *bi; +- int pendingPrioritisedExist = 0; +- +- /* First let's see if we need to grab a prioritised block */ +- if (dev->hasPendingPrioritisedGCs) { +- for (i = dev->internalStartBlock; i < dev->internalEndBlock && !prioritised; i++) { +- +- bi = yaffs_GetBlockInfo(dev, i); +- /* yaffs_VerifyBlock(dev,bi,i); */ +- +- if (bi->gcPrioritise) { +- pendingPrioritisedExist = 1; +- if (bi->blockState == YAFFS_BLOCK_STATE_FULL && +- yaffs_BlockNotDisqualifiedFromGC(dev, bi)) { +- pagesInUse = (bi->pagesInUse - bi->softDeletions); +- dirtiest = i; +- prioritised = 1; +- aggressive = 1; /* Fool the non-aggressive skip logiv below */ +- } +- } +- } +- +- if (!pendingPrioritisedExist) /* None found, so we can clear this */ +- dev->hasPendingPrioritisedGCs = 0; +- } +- +- /* If we're doing aggressive GC then we are happy to take a less-dirty block, and +- * search harder. +- * else (we're doing a leasurely gc), then we only bother to do this if the +- * block has only a few pages in use. +- */ +- +- dev->nonAggressiveSkip--; +- +- if (!aggressive && (dev->nonAggressiveSkip > 0)) +- return -1; +- +- if (!prioritised) +- pagesInUse = +- (aggressive) ? dev->nChunksPerBlock : YAFFS_PASSIVE_GC_CHUNKS + 1; +- +- if (aggressive) +- iterations = +- dev->internalEndBlock - dev->internalStartBlock + 1; +- else { +- iterations = +- dev->internalEndBlock - dev->internalStartBlock + 1; +- iterations = iterations / 16; +- if (iterations > 200) +- iterations = 200; +- } +- +- for (i = 0; i <= iterations && pagesInUse > 0 && !prioritised; i++) { +- b++; +- if (b < dev->internalStartBlock || b > dev->internalEndBlock) +- b = dev->internalStartBlock; +- +- if (b < dev->internalStartBlock || b > dev->internalEndBlock) { +- T(YAFFS_TRACE_ERROR, +- (TSTR("**>> Block %d is not valid" TENDSTR), b)); +- YBUG(); +- } +- +- bi = yaffs_GetBlockInfo(dev, b); +- +- if (bi->blockState == YAFFS_BLOCK_STATE_FULL && +- (bi->pagesInUse - bi->softDeletions) < pagesInUse && +- yaffs_BlockNotDisqualifiedFromGC(dev, bi)) { +- dirtiest = b; +- pagesInUse = (bi->pagesInUse - bi->softDeletions); +- } +- } +- +- dev->currentDirtyChecker = b; +- +- if (dirtiest > 0) { +- T(YAFFS_TRACE_GC, +- (TSTR("GC Selected block %d with %d free, prioritised:%d" TENDSTR), dirtiest, +- dev->nChunksPerBlock - pagesInUse, prioritised)); +- } +- +- dev->oldestDirtySequence = 0; +- +- if (dirtiest > 0) +- dev->nonAggressiveSkip = 4; +- +- return dirtiest; +-} +- +-static void yaffs_BlockBecameDirty(yaffs_Device *dev, int blockNo) +-{ +- yaffs_BlockInfo *bi = yaffs_GetBlockInfo(dev, blockNo); +- +- int erasedOk = 0; +- +- /* If the block is still healthy erase it and mark as clean. +- * If the block has had a data failure, then retire it. +- */ +- +- T(YAFFS_TRACE_GC | YAFFS_TRACE_ERASE, +- (TSTR("yaffs_BlockBecameDirty block %d state %d %s"TENDSTR), +- blockNo, bi->blockState, (bi->needsRetiring) ? "needs retiring" : "")); +- +- bi->blockState = YAFFS_BLOCK_STATE_DIRTY; +- +- if (!bi->needsRetiring) { +- yaffs_InvalidateCheckpoint(dev); +- erasedOk = yaffs_EraseBlockInNAND(dev, blockNo); +- if (!erasedOk) { +- dev->nErasureFailures++; +- T(YAFFS_TRACE_ERROR | YAFFS_TRACE_BAD_BLOCKS, +- (TSTR("**>> Erasure failed %d" TENDSTR), blockNo)); +- } +- } +- +- if (erasedOk && +- ((yaffs_traceMask & YAFFS_TRACE_ERASE) || !yaffs_SkipVerification(dev))) { +- int i; +- for (i = 0; i < dev->nChunksPerBlock; i++) { +- if (!yaffs_CheckChunkErased +- (dev, blockNo * dev->nChunksPerBlock + i)) { +- T(YAFFS_TRACE_ERROR, +- (TSTR +- (">>Block %d erasure supposedly OK, but chunk %d not erased" +- TENDSTR), blockNo, i)); +- } +- } +- } +- +- if (erasedOk) { +- /* Clean it up... */ +- bi->blockState = YAFFS_BLOCK_STATE_EMPTY; +- dev->nErasedBlocks++; +- bi->pagesInUse = 0; +- bi->softDeletions = 0; +- bi->hasShrinkHeader = 0; +- bi->skipErasedCheck = 1; /* This is clean, so no need to check */ +- bi->gcPrioritise = 0; +- yaffs_ClearChunkBits(dev, blockNo); +- +- T(YAFFS_TRACE_ERASE, +- (TSTR("Erased block %d" TENDSTR), blockNo)); +- } else { +- dev->nFreeChunks -= dev->nChunksPerBlock; /* We lost a block of free space */ +- +- yaffs_RetireBlock(dev, blockNo); +- T(YAFFS_TRACE_ERROR | YAFFS_TRACE_BAD_BLOCKS, +- (TSTR("**>> Block %d retired" TENDSTR), blockNo)); +- } +-} +- +-static int yaffs_FindBlockForAllocation(yaffs_Device *dev) +-{ +- int i; +- +- yaffs_BlockInfo *bi; +- +- if (dev->nErasedBlocks < 1) { +- /* Hoosterman we've got a problem. +- * Can't get space to gc +- */ +- T(YAFFS_TRACE_ERROR, +- (TSTR("yaffs tragedy: no more erased blocks" TENDSTR))); +- +- return -1; +- } +- +- /* Find an empty block. */ +- +- for (i = dev->internalStartBlock; i <= dev->internalEndBlock; i++) { +- dev->allocationBlockFinder++; +- if (dev->allocationBlockFinder < dev->internalStartBlock +- || dev->allocationBlockFinder > dev->internalEndBlock) { +- dev->allocationBlockFinder = dev->internalStartBlock; +- } +- +- bi = yaffs_GetBlockInfo(dev, dev->allocationBlockFinder); +- +- if (bi->blockState == YAFFS_BLOCK_STATE_EMPTY) { +- bi->blockState = YAFFS_BLOCK_STATE_ALLOCATING; +- dev->sequenceNumber++; +- bi->sequenceNumber = dev->sequenceNumber; +- dev->nErasedBlocks--; +- T(YAFFS_TRACE_ALLOCATE, +- (TSTR("Allocated block %d, seq %d, %d left" TENDSTR), +- dev->allocationBlockFinder, dev->sequenceNumber, +- dev->nErasedBlocks)); +- return dev->allocationBlockFinder; +- } +- } +- +- T(YAFFS_TRACE_ALWAYS, +- (TSTR +- ("yaffs tragedy: no more erased blocks, but there should have been %d" +- TENDSTR), dev->nErasedBlocks)); +- +- return -1; +-} +- +- +- +-static int yaffs_CalcCheckpointBlocksRequired(yaffs_Device *dev) +-{ +- if (!dev->nCheckpointBlocksRequired && +- dev->isYaffs2) { +- /* Not a valid value so recalculate */ +- int nBytes = 0; +- int nBlocks; +- int devBlocks = (dev->endBlock - dev->startBlock + 1); +- int tnodeSize; +- +- tnodeSize = (dev->tnodeWidth * YAFFS_NTNODES_LEVEL0)/8; +- +- if (tnodeSize < sizeof(yaffs_Tnode)) +- tnodeSize = sizeof(yaffs_Tnode); +- +- nBytes += sizeof(yaffs_CheckpointValidity); +- nBytes += sizeof(yaffs_CheckpointDevice); +- nBytes += devBlocks * sizeof(yaffs_BlockInfo); +- nBytes += devBlocks * dev->chunkBitmapStride; +- nBytes += (sizeof(yaffs_CheckpointObject) + sizeof(__u32)) * (dev->nObjectsCreated - dev->nFreeObjects); +- nBytes += (tnodeSize + sizeof(__u32)) * (dev->nTnodesCreated - dev->nFreeTnodes); +- nBytes += sizeof(yaffs_CheckpointValidity); +- nBytes += sizeof(__u32); /* checksum*/ +- +- /* Round up and add 2 blocks to allow for some bad blocks, so add 3 */ +- +- nBlocks = (nBytes/(dev->nDataBytesPerChunk * dev->nChunksPerBlock)) + 3; +- +- dev->nCheckpointBlocksRequired = nBlocks; +- } +- +- return dev->nCheckpointBlocksRequired; +-} +- +-/* +- * Check if there's space to allocate... +- * Thinks.... do we need top make this ths same as yaffs_GetFreeChunks()? +- */ +-static int yaffs_CheckSpaceForAllocation(yaffs_Device *dev) +-{ +- int reservedChunks; +- int reservedBlocks = dev->nReservedBlocks; +- int checkpointBlocks; +- +- if (dev->isYaffs2) { +- checkpointBlocks = yaffs_CalcCheckpointBlocksRequired(dev) - +- dev->blocksInCheckpoint; +- if (checkpointBlocks < 0) +- checkpointBlocks = 0; +- } else { +- checkpointBlocks = 0; +- } +- +- reservedChunks = ((reservedBlocks + checkpointBlocks) * dev->nChunksPerBlock); +- +- return (dev->nFreeChunks > reservedChunks); +-} +- +-static int yaffs_AllocateChunk(yaffs_Device *dev, int useReserve, +- yaffs_BlockInfo **blockUsedPtr) +-{ +- int retVal; +- yaffs_BlockInfo *bi; +- +- if (dev->allocationBlock < 0) { +- /* Get next block to allocate off */ +- dev->allocationBlock = yaffs_FindBlockForAllocation(dev); +- dev->allocationPage = 0; +- } +- +- if (!useReserve && !yaffs_CheckSpaceForAllocation(dev)) { +- /* Not enough space to allocate unless we're allowed to use the reserve. */ +- return -1; +- } +- +- if (dev->nErasedBlocks < dev->nReservedBlocks +- && dev->allocationPage == 0) { +- T(YAFFS_TRACE_ALLOCATE, (TSTR("Allocating reserve" TENDSTR))); +- } +- +- /* Next page please.... */ +- if (dev->allocationBlock >= 0) { +- bi = yaffs_GetBlockInfo(dev, dev->allocationBlock); +- +- retVal = (dev->allocationBlock * dev->nChunksPerBlock) + +- dev->allocationPage; +- bi->pagesInUse++; +- yaffs_SetChunkBit(dev, dev->allocationBlock, +- dev->allocationPage); +- +- dev->allocationPage++; +- +- dev->nFreeChunks--; +- +- /* If the block is full set the state to full */ +- if (dev->allocationPage >= dev->nChunksPerBlock) { +- bi->blockState = YAFFS_BLOCK_STATE_FULL; +- dev->allocationBlock = -1; +- } +- +- if (blockUsedPtr) +- *blockUsedPtr = bi; +- +- return retVal; +- } +- +- T(YAFFS_TRACE_ERROR, +- (TSTR("!!!!!!!!! Allocator out !!!!!!!!!!!!!!!!!" TENDSTR))); +- +- return -1; +-} +- +-static int yaffs_GetErasedChunks(yaffs_Device *dev) +-{ +- int n; +- +- n = dev->nErasedBlocks * dev->nChunksPerBlock; +- +- if (dev->allocationBlock > 0) +- n += (dev->nChunksPerBlock - dev->allocationPage); +- +- return n; +- +-} +- +-static int yaffs_GarbageCollectBlock(yaffs_Device *dev, int block, +- int wholeBlock) +-{ +- int oldChunk; +- int newChunk; +- int markNAND; +- int retVal = YAFFS_OK; +- int cleanups = 0; +- int i; +- int isCheckpointBlock; +- int matchingChunk; +- int maxCopies; +- +- int chunksBefore = yaffs_GetErasedChunks(dev); +- int chunksAfter; +- +- yaffs_ExtendedTags tags; +- +- yaffs_BlockInfo *bi = yaffs_GetBlockInfo(dev, block); +- +- yaffs_Object *object; +- +- isCheckpointBlock = (bi->blockState == YAFFS_BLOCK_STATE_CHECKPOINT); +- +- bi->blockState = YAFFS_BLOCK_STATE_COLLECTING; +- +- T(YAFFS_TRACE_TRACING, +- (TSTR("Collecting block %d, in use %d, shrink %d, wholeBlock %d" TENDSTR), +- block, +- bi->pagesInUse, +- bi->hasShrinkHeader, +- wholeBlock)); +- +- /*yaffs_VerifyFreeChunks(dev); */ +- +- bi->hasShrinkHeader = 0; /* clear the flag so that the block can erase */ +- +- /* Take off the number of soft deleted entries because +- * they're going to get really deleted during GC. +- */ +- dev->nFreeChunks -= bi->softDeletions; +- +- dev->isDoingGC = 1; +- +- if (isCheckpointBlock || +- !yaffs_StillSomeChunkBits(dev, block)) { +- T(YAFFS_TRACE_TRACING, +- (TSTR +- ("Collecting block %d that has no chunks in use" TENDSTR), +- block)); +- yaffs_BlockBecameDirty(dev, block); +- } else { +- +- __u8 *buffer = yaffs_GetTempBuffer(dev, __LINE__); +- +- yaffs_VerifyBlock(dev, bi, block); +- +- maxCopies = (wholeBlock) ? dev->nChunksPerBlock : 10; +- oldChunk = block * dev->nChunksPerBlock + dev->gcChunk; +- +- for (/* init already done */; +- retVal == YAFFS_OK && +- dev->gcChunk < dev->nChunksPerBlock && +- (bi->blockState == YAFFS_BLOCK_STATE_COLLECTING) && +- maxCopies > 0; +- dev->gcChunk++, oldChunk++) { +- if (yaffs_CheckChunkBit(dev, block, dev->gcChunk)) { +- +- /* This page is in use and might need to be copied off */ +- +- maxCopies--; +- +- markNAND = 1; +- +- yaffs_InitialiseTags(&tags); +- +- yaffs_ReadChunkWithTagsFromNAND(dev, oldChunk, +- buffer, &tags); +- +- object = +- yaffs_FindObjectByNumber(dev, +- tags.objectId); +- +- T(YAFFS_TRACE_GC_DETAIL, +- (TSTR +- ("Collecting chunk in block %d, %d %d %d " TENDSTR), +- dev->gcChunk, tags.objectId, tags.chunkId, +- tags.byteCount)); +- +- if (object && !yaffs_SkipVerification(dev)) { +- if (tags.chunkId == 0) +- matchingChunk = object->hdrChunk; +- else if (object->softDeleted) +- matchingChunk = oldChunk; /* Defeat the test */ +- else +- matchingChunk = yaffs_FindChunkInFile(object, tags.chunkId, NULL); +- +- if (oldChunk != matchingChunk) +- T(YAFFS_TRACE_ERROR, +- (TSTR("gc: page in gc mismatch: %d %d %d %d"TENDSTR), +- oldChunk, matchingChunk, tags.objectId, tags.chunkId)); +- +- } +- +- if (!object) { +- T(YAFFS_TRACE_ERROR, +- (TSTR +- ("page %d in gc has no object: %d %d %d " +- TENDSTR), oldChunk, +- tags.objectId, tags.chunkId, tags.byteCount)); +- } +- +- if (object && +- object->deleted && +- object->softDeleted && +- tags.chunkId != 0) { +- /* Data chunk in a soft deleted file, throw it away +- * It's a soft deleted data chunk, +- * No need to copy this, just forget about it and +- * fix up the object. +- */ +- +- object->nDataChunks--; +- +- if (object->nDataChunks <= 0) { +- /* remeber to clean up the object */ +- dev->gcCleanupList[cleanups] = +- tags.objectId; +- cleanups++; +- } +- markNAND = 0; +- } else if (0) { +- /* Todo object && object->deleted && object->nDataChunks == 0 */ +- /* Deleted object header with no data chunks. +- * Can be discarded and the file deleted. +- */ +- object->hdrChunk = 0; +- yaffs_FreeTnode(object->myDev, +- object->variant. +- fileVariant.top); +- object->variant.fileVariant.top = NULL; +- yaffs_DoGenericObjectDeletion(object); +- +- } else if (object) { +- /* It's either a data chunk in a live file or +- * an ObjectHeader, so we're interested in it. +- * NB Need to keep the ObjectHeaders of deleted files +- * until the whole file has been deleted off +- */ +- tags.serialNumber++; +- +- dev->nGCCopies++; +- +- if (tags.chunkId == 0) { +- /* It is an object Id, +- * We need to nuke the shrinkheader flags first +- * We no longer want the shrinkHeader flag since its work is done +- * and if it is left in place it will mess up scanning. +- */ +- +- yaffs_ObjectHeader *oh; +- oh = (yaffs_ObjectHeader *)buffer; +- oh->isShrink = 0; +- tags.extraIsShrinkHeader = 0; +- +- yaffs_VerifyObjectHeader(object, oh, &tags, 1); +- } +- +- newChunk = +- yaffs_WriteNewChunkWithTagsToNAND(dev, buffer, &tags, 1); +- +- if (newChunk < 0) { +- retVal = YAFFS_FAIL; +- } else { +- +- /* Ok, now fix up the Tnodes etc. */ +- +- if (tags.chunkId == 0) { +- /* It's a header */ +- object->hdrChunk = newChunk; +- object->serial = tags.serialNumber; +- } else { +- /* It's a data chunk */ +- yaffs_PutChunkIntoFile +- (object, +- tags.chunkId, +- newChunk, 0); +- } +- } +- } +- +- if (retVal == YAFFS_OK) +- yaffs_DeleteChunk(dev, oldChunk, markNAND, __LINE__); +- +- } +- } +- +- yaffs_ReleaseTempBuffer(dev, buffer, __LINE__); +- +- +- /* Do any required cleanups */ +- for (i = 0; i < cleanups; i++) { +- /* Time to delete the file too */ +- object = +- yaffs_FindObjectByNumber(dev, +- dev->gcCleanupList[i]); +- if (object) { +- yaffs_FreeTnode(dev, +- object->variant.fileVariant. +- top); +- object->variant.fileVariant.top = NULL; +- T(YAFFS_TRACE_GC, +- (TSTR +- ("yaffs: About to finally delete object %d" +- TENDSTR), object->objectId)); +- yaffs_DoGenericObjectDeletion(object); +- object->myDev->nDeletedFiles--; +- } +- +- } +- +- } +- +- yaffs_VerifyCollectedBlock(dev, bi, block); +- +- chunksAfter = yaffs_GetErasedChunks(dev); +- if (chunksBefore >= chunksAfter) { +- T(YAFFS_TRACE_GC, +- (TSTR +- ("gc did not increase free chunks before %d after %d" +- TENDSTR), chunksBefore, chunksAfter)); +- } +- +- /* If the gc completed then clear the current gcBlock so that we find another. */ +- if (bi->blockState != YAFFS_BLOCK_STATE_COLLECTING) { +- dev->gcBlock = -1; +- dev->gcChunk = 0; +- } +- +- dev->isDoingGC = 0; +- +- return retVal; +-} +- +-/* New garbage collector +- * If we're very low on erased blocks then we do aggressive garbage collection +- * otherwise we do "leasurely" garbage collection. +- * Aggressive gc looks further (whole array) and will accept less dirty blocks. +- * Passive gc only inspects smaller areas and will only accept more dirty blocks. +- * +- * The idea is to help clear out space in a more spread-out manner. +- * Dunno if it really does anything useful. +- */ +-static int yaffs_CheckGarbageCollection(yaffs_Device *dev) +-{ +- int block; +- int aggressive; +- int gcOk = YAFFS_OK; +- int maxTries = 0; +- +- int checkpointBlockAdjust; +- +- if (dev->isDoingGC) { +- /* Bail out so we don't get recursive gc */ +- return YAFFS_OK; +- } +- +- /* This loop should pass the first time. +- * We'll only see looping here if the erase of the collected block fails. +- */ +- +- do { +- maxTries++; +- +- checkpointBlockAdjust = yaffs_CalcCheckpointBlocksRequired(dev) - dev->blocksInCheckpoint; +- if (checkpointBlockAdjust < 0) +- checkpointBlockAdjust = 0; +- +- if (dev->nErasedBlocks < (dev->nReservedBlocks + checkpointBlockAdjust + 2)) { +- /* We need a block soon...*/ +- aggressive = 1; +- } else { +- /* We're in no hurry */ +- aggressive = 0; +- } +- +- if (dev->gcBlock <= 0) { +- dev->gcBlock = yaffs_FindBlockForGarbageCollection(dev, aggressive); +- dev->gcChunk = 0; +- } +- +- block = dev->gcBlock; +- +- if (block > 0) { +- dev->garbageCollections++; +- if (!aggressive) +- dev->passiveGarbageCollections++; +- +- T(YAFFS_TRACE_GC, +- (TSTR +- ("yaffs: GC erasedBlocks %d aggressive %d" TENDSTR), +- dev->nErasedBlocks, aggressive)); +- +- gcOk = yaffs_GarbageCollectBlock(dev, block, aggressive); +- } +- +- if (dev->nErasedBlocks < (dev->nReservedBlocks) && block > 0) { +- T(YAFFS_TRACE_GC, +- (TSTR +- ("yaffs: GC !!!no reclaim!!! erasedBlocks %d after try %d block %d" +- TENDSTR), dev->nErasedBlocks, maxTries, block)); +- } +- } while ((dev->nErasedBlocks < dev->nReservedBlocks) && +- (block > 0) && +- (maxTries < 2)); +- +- return aggressive ? gcOk : YAFFS_OK; +-} +- +-/*------------------------- TAGS --------------------------------*/ +- +-static int yaffs_TagsMatch(const yaffs_ExtendedTags *tags, int objectId, +- int chunkInObject) +-{ +- return (tags->chunkId == chunkInObject && +- tags->objectId == objectId && !tags->chunkDeleted) ? 1 : 0; +- +-} +- +- +-/*-------------------- Data file manipulation -----------------*/ +- +-static int yaffs_FindChunkInFile(yaffs_Object *in, int chunkInInode, +- yaffs_ExtendedTags *tags) +-{ +- /*Get the Tnode, then get the level 0 offset chunk offset */ +- yaffs_Tnode *tn; +- int theChunk = -1; +- yaffs_ExtendedTags localTags; +- int retVal = -1; +- +- yaffs_Device *dev = in->myDev; +- +- if (!tags) { +- /* Passed a NULL, so use our own tags space */ +- tags = &localTags; +- } +- +- tn = yaffs_FindLevel0Tnode(dev, &in->variant.fileVariant, chunkInInode); +- +- if (tn) { +- theChunk = yaffs_GetChunkGroupBase(dev, tn, chunkInInode); +- +- retVal = +- yaffs_FindChunkInGroup(dev, theChunk, tags, in->objectId, +- chunkInInode); +- } +- return retVal; +-} +- +-static int yaffs_FindAndDeleteChunkInFile(yaffs_Object *in, int chunkInInode, +- yaffs_ExtendedTags *tags) +-{ +- /* Get the Tnode, then get the level 0 offset chunk offset */ +- yaffs_Tnode *tn; +- int theChunk = -1; +- yaffs_ExtendedTags localTags; +- +- yaffs_Device *dev = in->myDev; +- int retVal = -1; +- +- if (!tags) { +- /* Passed a NULL, so use our own tags space */ +- tags = &localTags; +- } +- +- tn = yaffs_FindLevel0Tnode(dev, &in->variant.fileVariant, chunkInInode); +- +- if (tn) { +- +- theChunk = yaffs_GetChunkGroupBase(dev, tn, chunkInInode); +- +- retVal = +- yaffs_FindChunkInGroup(dev, theChunk, tags, in->objectId, +- chunkInInode); +- +- /* Delete the entry in the filestructure (if found) */ +- if (retVal != -1) +- yaffs_PutLevel0Tnode(dev, tn, chunkInInode, 0); +- } +- +- return retVal; +-} +- +-#ifdef YAFFS_PARANOID +- +-static int yaffs_CheckFileSanity(yaffs_Object *in) +-{ +- int chunk; +- int nChunks; +- int fSize; +- int failed = 0; +- int objId; +- yaffs_Tnode *tn; +- yaffs_Tags localTags; +- yaffs_Tags *tags = &localTags; +- int theChunk; +- int chunkDeleted; +- +- if (in->variantType != YAFFS_OBJECT_TYPE_FILE) +- return YAFFS_FAIL; +- +- objId = in->objectId; +- fSize = in->variant.fileVariant.fileSize; +- nChunks = +- (fSize + in->myDev->nDataBytesPerChunk - 1) / in->myDev->nDataBytesPerChunk; +- +- for (chunk = 1; chunk <= nChunks; chunk++) { +- tn = yaffs_FindLevel0Tnode(in->myDev, &in->variant.fileVariant, +- chunk); +- +- if (tn) { +- +- theChunk = yaffs_GetChunkGroupBase(dev, tn, chunk); +- +- if (yaffs_CheckChunkBits +- (dev, theChunk / dev->nChunksPerBlock, +- theChunk % dev->nChunksPerBlock)) { +- +- yaffs_ReadChunkTagsFromNAND(in->myDev, theChunk, +- tags, +- &chunkDeleted); +- if (yaffs_TagsMatch +- (tags, in->objectId, chunk, chunkDeleted)) { +- /* found it; */ +- +- } +- } else { +- +- failed = 1; +- } +- +- } else { +- /* T(("No level 0 found for %d\n", chunk)); */ +- } +- } +- +- return failed ? YAFFS_FAIL : YAFFS_OK; +-} +- +-#endif +- +-static int yaffs_PutChunkIntoFile(yaffs_Object *in, int chunkInInode, +- int chunkInNAND, int inScan) +-{ +- /* NB inScan is zero unless scanning. +- * For forward scanning, inScan is > 0; +- * for backward scanning inScan is < 0 +- */ +- +- yaffs_Tnode *tn; +- yaffs_Device *dev = in->myDev; +- int existingChunk; +- yaffs_ExtendedTags existingTags; +- yaffs_ExtendedTags newTags; +- unsigned existingSerial, newSerial; +- +- if (in->variantType != YAFFS_OBJECT_TYPE_FILE) { +- /* Just ignore an attempt at putting a chunk into a non-file during scanning +- * If it is not during Scanning then something went wrong! +- */ +- if (!inScan) { +- T(YAFFS_TRACE_ERROR, +- (TSTR +- ("yaffs tragedy:attempt to put data chunk into a non-file" +- TENDSTR))); +- YBUG(); +- } +- +- yaffs_DeleteChunk(dev, chunkInNAND, 1, __LINE__); +- return YAFFS_OK; +- } +- +- tn = yaffs_AddOrFindLevel0Tnode(dev, +- &in->variant.fileVariant, +- chunkInInode, +- NULL); +- if (!tn) +- return YAFFS_FAIL; +- +- existingChunk = yaffs_GetChunkGroupBase(dev, tn, chunkInInode); +- +- if (inScan != 0) { +- /* If we're scanning then we need to test for duplicates +- * NB This does not need to be efficient since it should only ever +- * happen when the power fails during a write, then only one +- * chunk should ever be affected. +- * +- * Correction for YAFFS2: This could happen quite a lot and we need to think about efficiency! TODO +- * Update: For backward scanning we don't need to re-read tags so this is quite cheap. +- */ +- +- if (existingChunk > 0) { +- /* NB Right now existing chunk will not be real chunkId if the device >= 32MB +- * thus we have to do a FindChunkInFile to get the real chunk id. +- * +- * We have a duplicate now we need to decide which one to use: +- * +- * Backwards scanning YAFFS2: The old one is what we use, dump the new one. +- * Forward scanning YAFFS2: The new one is what we use, dump the old one. +- * YAFFS1: Get both sets of tags and compare serial numbers. +- */ +- +- if (inScan > 0) { +- /* Only do this for forward scanning */ +- yaffs_ReadChunkWithTagsFromNAND(dev, +- chunkInNAND, +- NULL, &newTags); +- +- /* Do a proper find */ +- existingChunk = +- yaffs_FindChunkInFile(in, chunkInInode, +- &existingTags); +- } +- +- if (existingChunk <= 0) { +- /*Hoosterman - how did this happen? */ +- +- T(YAFFS_TRACE_ERROR, +- (TSTR +- ("yaffs tragedy: existing chunk < 0 in scan" +- TENDSTR))); +- +- } +- +- /* NB The deleted flags should be false, otherwise the chunks will +- * not be loaded during a scan +- */ +- +- if (inScan > 0) { +- newSerial = newTags.serialNumber; +- existingSerial = existingTags.serialNumber; +- } +- +- if ((inScan > 0) && +- (in->myDev->isYaffs2 || +- existingChunk <= 0 || +- ((existingSerial + 1) & 3) == newSerial)) { +- /* Forward scanning. +- * Use new +- * Delete the old one and drop through to update the tnode +- */ +- yaffs_DeleteChunk(dev, existingChunk, 1, +- __LINE__); +- } else { +- /* Backward scanning or we want to use the existing one +- * Use existing. +- * Delete the new one and return early so that the tnode isn't changed +- */ +- yaffs_DeleteChunk(dev, chunkInNAND, 1, +- __LINE__); +- return YAFFS_OK; +- } +- } +- +- } +- +- if (existingChunk == 0) +- in->nDataChunks++; +- +- yaffs_PutLevel0Tnode(dev, tn, chunkInInode, chunkInNAND); +- +- return YAFFS_OK; +-} +- +-static int yaffs_ReadChunkDataFromObject(yaffs_Object *in, int chunkInInode, +- __u8 *buffer) +-{ +- int chunkInNAND = yaffs_FindChunkInFile(in, chunkInInode, NULL); +- +- if (chunkInNAND >= 0) +- return yaffs_ReadChunkWithTagsFromNAND(in->myDev, chunkInNAND, +- buffer, NULL); +- else { +- T(YAFFS_TRACE_NANDACCESS, +- (TSTR("Chunk %d not found zero instead" TENDSTR), +- chunkInNAND)); +- /* get sane (zero) data if you read a hole */ +- memset(buffer, 0, in->myDev->nDataBytesPerChunk); +- return 0; +- } +- +-} +- +-void yaffs_DeleteChunk(yaffs_Device *dev, int chunkId, int markNAND, int lyn) +-{ +- int block; +- int page; +- yaffs_ExtendedTags tags; +- yaffs_BlockInfo *bi; +- +- if (chunkId <= 0) +- return; +- +- dev->nDeletions++; +- block = chunkId / dev->nChunksPerBlock; +- page = chunkId % dev->nChunksPerBlock; +- +- +- if (!yaffs_CheckChunkBit(dev, block, page)) +- T(YAFFS_TRACE_VERIFY, +- (TSTR("Deleting invalid chunk %d"TENDSTR), +- chunkId)); +- +- bi = yaffs_GetBlockInfo(dev, block); +- +- T(YAFFS_TRACE_DELETION, +- (TSTR("line %d delete of chunk %d" TENDSTR), lyn, chunkId)); +- +- if (markNAND && +- bi->blockState != YAFFS_BLOCK_STATE_COLLECTING && !dev->isYaffs2) { +- +- yaffs_InitialiseTags(&tags); +- +- tags.chunkDeleted = 1; +- +- yaffs_WriteChunkWithTagsToNAND(dev, chunkId, NULL, &tags); +- yaffs_HandleUpdateChunk(dev, chunkId, &tags); +- } else { +- dev->nUnmarkedDeletions++; +- } +- +- /* Pull out of the management area. +- * If the whole block became dirty, this will kick off an erasure. +- */ +- if (bi->blockState == YAFFS_BLOCK_STATE_ALLOCATING || +- bi->blockState == YAFFS_BLOCK_STATE_FULL || +- bi->blockState == YAFFS_BLOCK_STATE_NEEDS_SCANNING || +- bi->blockState == YAFFS_BLOCK_STATE_COLLECTING) { +- dev->nFreeChunks++; +- +- yaffs_ClearChunkBit(dev, block, page); +- +- bi->pagesInUse--; +- +- if (bi->pagesInUse == 0 && +- !bi->hasShrinkHeader && +- bi->blockState != YAFFS_BLOCK_STATE_ALLOCATING && +- bi->blockState != YAFFS_BLOCK_STATE_NEEDS_SCANNING) { +- yaffs_BlockBecameDirty(dev, block); +- } +- +- } +- +-} +- +-static int yaffs_WriteChunkDataToObject(yaffs_Object *in, int chunkInInode, +- const __u8 *buffer, int nBytes, +- int useReserve) +-{ +- /* Find old chunk Need to do this to get serial number +- * Write new one and patch into tree. +- * Invalidate old tags. +- */ +- +- int prevChunkId; +- yaffs_ExtendedTags prevTags; +- +- int newChunkId; +- yaffs_ExtendedTags newTags; +- +- yaffs_Device *dev = in->myDev; +- +- yaffs_CheckGarbageCollection(dev); +- +- /* Get the previous chunk at this location in the file if it exists */ +- prevChunkId = yaffs_FindChunkInFile(in, chunkInInode, &prevTags); +- +- /* Set up new tags */ +- yaffs_InitialiseTags(&newTags); +- +- newTags.chunkId = chunkInInode; +- newTags.objectId = in->objectId; +- newTags.serialNumber = +- (prevChunkId >= 0) ? prevTags.serialNumber + 1 : 1; +- newTags.byteCount = nBytes; +- +- if (nBytes < 1 || nBytes > dev->totalBytesPerChunk) { +- T(YAFFS_TRACE_ERROR, +- (TSTR("Writing %d bytes to chunk!!!!!!!!!" TENDSTR), nBytes)); +- YBUG(); +- } +- +- newChunkId = +- yaffs_WriteNewChunkWithTagsToNAND(dev, buffer, &newTags, +- useReserve); +- +- if (newChunkId >= 0) { +- yaffs_PutChunkIntoFile(in, chunkInInode, newChunkId, 0); +- +- if (prevChunkId >= 0) +- yaffs_DeleteChunk(dev, prevChunkId, 1, __LINE__); +- +- yaffs_CheckFileSanity(in); +- } +- return newChunkId; +- +-} +- +-/* UpdateObjectHeader updates the header on NAND for an object. +- * If name is not NULL, then that new name is used. +- */ +-int yaffs_UpdateObjectHeader(yaffs_Object *in, const YCHAR *name, int force, +- int isShrink, int shadows) +-{ +- +- yaffs_BlockInfo *bi; +- +- yaffs_Device *dev = in->myDev; +- +- int prevChunkId; +- int retVal = 0; +- int result = 0; +- +- int newChunkId; +- yaffs_ExtendedTags newTags; +- yaffs_ExtendedTags oldTags; +- +- __u8 *buffer = NULL; +- YCHAR oldName[YAFFS_MAX_NAME_LENGTH + 1]; +- +- yaffs_ObjectHeader *oh = NULL; ++ yaffs_obj_t *in; ++ YCHAR *str = NULL; + +- yaffs_strcpy(oldName, _Y("silly old name")); ++ yaffs_dev_t *dev = parent->my_dev; + ++ /* Check if the entry exists. If it does then fail the call since we don't want a dup.*/ ++ if (yaffs_find_by_name(parent, name)) ++ return NULL; + +- if (!in->fake || +- in == dev->rootDir || /* The rootDir should also be saved */ +- force) { ++ if (type == YAFFS_OBJECT_TYPE_SYMLINK) { ++ str = yaffs_clone_str(aliasString); ++ if (!str) ++ return NULL; ++ } + +- yaffs_CheckGarbageCollection(dev); +- yaffs_CheckObjectDetailsLoaded(in); ++ in = yaffs_new_obj(dev, -1, type); + +- buffer = yaffs_GetTempBuffer(in->myDev, __LINE__); +- oh = (yaffs_ObjectHeader *) buffer; ++ if (!in){ ++ if(str) ++ YFREE(str); ++ return NULL; ++ } + +- prevChunkId = in->hdrChunk; + +- if (prevChunkId > 0) { +- result = yaffs_ReadChunkWithTagsFromNAND(dev, prevChunkId, +- buffer, &oldTags); + +- yaffs_VerifyObjectHeader(in, oh, &oldTags, 0); + +- memcpy(oldName, oh->name, sizeof(oh->name)); +- } + +- memset(buffer, 0xFF, dev->nDataBytesPerChunk); ++ if (in) { ++ in->hdr_chunk = 0; ++ in->valid = 1; ++ in->variant_type = type; + +- oh->type = in->variantType; +- oh->yst_mode = in->yst_mode; +- oh->shadowsObject = oh->inbandShadowsObject = shadows; ++ in->yst_mode = mode; + + #ifdef CONFIG_YAFFS_WINCE +- oh->win_atime[0] = in->win_atime[0]; +- oh->win_ctime[0] = in->win_ctime[0]; +- oh->win_mtime[0] = in->win_mtime[0]; +- oh->win_atime[1] = in->win_atime[1]; +- oh->win_ctime[1] = in->win_ctime[1]; +- oh->win_mtime[1] = in->win_mtime[1]; ++ yfsd_win_file_time_now(in->win_atime); ++ in->win_ctime[0] = in->win_mtime[0] = in->win_atime[0]; ++ in->win_ctime[1] = in->win_mtime[1] = in->win_atime[1]; ++ + #else +- oh->yst_uid = in->yst_uid; +- oh->yst_gid = in->yst_gid; +- oh->yst_atime = in->yst_atime; +- oh->yst_mtime = in->yst_mtime; +- oh->yst_ctime = in->yst_ctime; +- oh->yst_rdev = in->yst_rdev; ++ in->yst_atime = in->yst_mtime = in->yst_ctime = Y_CURRENT_TIME; ++ ++ in->yst_rdev = rdev; ++ in->yst_uid = uid; ++ in->yst_gid = gid; + #endif +- if (in->parent) +- oh->parentObjectId = in->parent->objectId; +- else +- oh->parentObjectId = 0; ++ in->n_data_chunks = 0; + +- if (name && *name) { +- memset(oh->name, 0, sizeof(oh->name)); +- yaffs_strncpy(oh->name, name, YAFFS_MAX_NAME_LENGTH); +- } else if (prevChunkId >= 0) +- memcpy(oh->name, oldName, sizeof(oh->name)); +- else +- memset(oh->name, 0, sizeof(oh->name)); ++ yaffs_set_obj_name(in, name); ++ in->dirty = 1; + +- oh->isShrink = isShrink; ++ yaffs_add_obj_to_dir(parent, in); + +- switch (in->variantType) { +- case YAFFS_OBJECT_TYPE_UNKNOWN: +- /* Should not happen */ +- break; +- case YAFFS_OBJECT_TYPE_FILE: +- oh->fileSize = +- (oh->parentObjectId == YAFFS_OBJECTID_DELETED +- || oh->parentObjectId == +- YAFFS_OBJECTID_UNLINKED) ? 0 : in->variant. +- fileVariant.fileSize; ++ in->my_dev = parent->my_dev; ++ ++ switch (type) { ++ case YAFFS_OBJECT_TYPE_SYMLINK: ++ in->variant.symlink_variant.alias = str; + break; + case YAFFS_OBJECT_TYPE_HARDLINK: +- oh->equivalentObjectId = +- in->variant.hardLinkVariant.equivalentObjectId; +- break; +- case YAFFS_OBJECT_TYPE_SPECIAL: +- /* Do nothing */ ++ in->variant.hardlink_variant.equiv_obj = ++ equiv_obj; ++ in->variant.hardlink_variant.equiv_id = ++ equiv_obj->obj_id; ++ ylist_add(&in->hard_links, &equiv_obj->hard_links); + break; ++ case YAFFS_OBJECT_TYPE_FILE: + case YAFFS_OBJECT_TYPE_DIRECTORY: +- /* Do nothing */ +- break; +- case YAFFS_OBJECT_TYPE_SYMLINK: +- yaffs_strncpy(oh->alias, +- in->variant.symLinkVariant.alias, +- YAFFS_MAX_ALIAS_LENGTH); +- oh->alias[YAFFS_MAX_ALIAS_LENGTH] = 0; ++ case YAFFS_OBJECT_TYPE_SPECIAL: ++ case YAFFS_OBJECT_TYPE_UNKNOWN: ++ /* do nothing */ + break; + } + +- /* Tags */ +- yaffs_InitialiseTags(&newTags); +- in->serial++; +- newTags.chunkId = 0; +- newTags.objectId = in->objectId; +- newTags.serialNumber = in->serial; +- +- /* Add extra info for file header */ +- +- newTags.extraHeaderInfoAvailable = 1; +- newTags.extraParentObjectId = oh->parentObjectId; +- newTags.extraFileLength = oh->fileSize; +- newTags.extraIsShrinkHeader = oh->isShrink; +- newTags.extraEquivalentObjectId = oh->equivalentObjectId; +- newTags.extraShadows = (oh->shadowsObject > 0) ? 1 : 0; +- newTags.extraObjectType = in->variantType; +- +- yaffs_VerifyObjectHeader(in, oh, &newTags, 1); +- +- /* Create new chunk in NAND */ +- newChunkId = +- yaffs_WriteNewChunkWithTagsToNAND(dev, buffer, &newTags, +- (prevChunkId >= 0) ? 1 : 0); +- +- if (newChunkId >= 0) { +- +- in->hdrChunk = newChunkId; +- +- if (prevChunkId >= 0) { +- yaffs_DeleteChunk(dev, prevChunkId, 1, +- __LINE__); +- } +- +- if (!yaffs_ObjectHasCachedWriteData(in)) +- in->dirty = 0; +- +- /* If this was a shrink, then mark the block that the chunk lives on */ +- if (isShrink) { +- bi = yaffs_GetBlockInfo(in->myDev, +- newChunkId / in->myDev->nChunksPerBlock); +- bi->hasShrinkHeader = 1; +- } +- ++ if (yaffs_update_oh(in, name, 0, 0, 0, NULL) < 0) { ++ /* Could not create the object header, fail the creation */ ++ yaffs_del_obj(in); ++ in = NULL; + } + +- retVal = newChunkId; +- ++ yaffs_update_parent(parent); + } + +- if (buffer) +- yaffs_ReleaseTempBuffer(dev, buffer, __LINE__); +- +- return retVal; ++ return in; + } + +-/*------------------------ Short Operations Cache ---------------------------------------- +- * In many situations where there is no high level buffering (eg WinCE) a lot of +- * reads might be short sequential reads, and a lot of writes may be short +- * sequential writes. eg. scanning/writing a jpeg file. +- * In these cases, a short read/write cache can provide a huge perfomance benefit +- * with dumb-as-a-rock code. +- * In Linux, the page cache provides read buffering aand the short op cache provides write +- * buffering. +- * +- * There are a limited number (~10) of cache chunks per device so that we don't +- * need a very intelligent search. +- */ +- +-static int yaffs_ObjectHasCachedWriteData(yaffs_Object *obj) ++yaffs_obj_t *yaffs_create_file(yaffs_obj_t *parent, const YCHAR *name, ++ __u32 mode, __u32 uid, __u32 gid) + { +- yaffs_Device *dev = obj->myDev; +- int i; +- yaffs_ChunkCache *cache; +- int nCaches = obj->myDev->nShortOpCaches; +- +- for (i = 0; i < nCaches; i++) { +- cache = &dev->srCache[i]; +- if (cache->object == obj && +- cache->dirty) +- return 1; +- } ++ return yaffs_create_obj(YAFFS_OBJECT_TYPE_FILE, parent, name, mode, ++ uid, gid, NULL, NULL, 0); ++} + +- return 0; ++yaffs_obj_t *yaffs_create_dir(yaffs_obj_t *parent, const YCHAR *name, ++ __u32 mode, __u32 uid, __u32 gid) ++{ ++ return yaffs_create_obj(YAFFS_OBJECT_TYPE_DIRECTORY, parent, name, ++ mode, uid, gid, NULL, NULL, 0); + } + ++yaffs_obj_t *yaffs_create_special(yaffs_obj_t *parent, const YCHAR *name, ++ __u32 mode, __u32 uid, __u32 gid, __u32 rdev) ++{ ++ return yaffs_create_obj(YAFFS_OBJECT_TYPE_SPECIAL, parent, name, mode, ++ uid, gid, NULL, NULL, rdev); ++} + +-static void yaffs_FlushFilesChunkCache(yaffs_Object *obj) ++yaffs_obj_t *yaffs_create_symlink(yaffs_obj_t *parent, const YCHAR *name, ++ __u32 mode, __u32 uid, __u32 gid, ++ const YCHAR *alias) + { +- yaffs_Device *dev = obj->myDev; +- int lowest = -99; /* Stop compiler whining. */ +- int i; +- yaffs_ChunkCache *cache; +- int chunkWritten = 0; +- int nCaches = obj->myDev->nShortOpCaches; ++ return yaffs_create_obj(YAFFS_OBJECT_TYPE_SYMLINK, parent, name, mode, ++ uid, gid, NULL, alias, 0); ++} + +- if (nCaches > 0) { +- do { +- cache = NULL; ++/* yaffs_link_obj returns the object id of the equivalent object.*/ ++yaffs_obj_t *yaffs_link_obj(yaffs_obj_t *parent, const YCHAR *name, ++ yaffs_obj_t *equiv_obj) ++{ ++ /* Get the real object in case we were fed a hard link as an equivalent object */ ++ equiv_obj = yaffs_get_equivalent_obj(equiv_obj); + +- /* Find the dirty cache for this object with the lowest chunk id. */ +- for (i = 0; i < nCaches; i++) { +- if (dev->srCache[i].object == obj && +- dev->srCache[i].dirty) { +- if (!cache +- || dev->srCache[i].chunkId < +- lowest) { +- cache = &dev->srCache[i]; +- lowest = cache->chunkId; +- } +- } +- } ++ if (yaffs_create_obj ++ (YAFFS_OBJECT_TYPE_HARDLINK, parent, name, 0, 0, 0, ++ equiv_obj, NULL, 0)) { ++ return equiv_obj; ++ } else { ++ return NULL; ++ } + +- if (cache && !cache->locked) { +- /* Write it out and free it up */ ++} + +- chunkWritten = +- yaffs_WriteChunkDataToObject(cache->object, +- cache->chunkId, +- cache->data, +- cache->nBytes, +- 1); +- cache->dirty = 0; +- cache->object = NULL; +- } ++static int yaffs_change_obj_name(yaffs_obj_t *obj, yaffs_obj_t *new_dir, ++ const YCHAR *new_name, int force, int shadows) ++{ ++ int unlinkOp; ++ int deleteOp; + +- } while (cache && chunkWritten > 0); ++ yaffs_obj_t *existingTarget; + +- if (cache) { +- /* Hoosterman, disk full while writing cache out. */ +- T(YAFFS_TRACE_ERROR, +- (TSTR("yaffs tragedy: no space during cache write" TENDSTR))); ++ if (new_dir == NULL) ++ new_dir = obj->parent; /* use the old directory */ + +- } ++ if (new_dir->variant_type != YAFFS_OBJECT_TYPE_DIRECTORY) { ++ T(YAFFS_TRACE_ALWAYS, ++ (TSTR ++ ("tragedy: yaffs_change_obj_name: new_dir is not a directory" ++ TENDSTR))); ++ YBUG(); + } + +-} ++ /* TODO: Do we need this different handling for YAFFS2 and YAFFS1?? */ ++ if (obj->my_dev->param.is_yaffs2) ++ unlinkOp = (new_dir == obj->my_dev->unlinked_dir); ++ else ++ unlinkOp = (new_dir == obj->my_dev->unlinked_dir ++ && obj->variant_type == YAFFS_OBJECT_TYPE_FILE); + +-/*yaffs_FlushEntireDeviceCache(dev) +- * +- * +- */ ++ deleteOp = (new_dir == obj->my_dev->del_dir); + +-void yaffs_FlushEntireDeviceCache(yaffs_Device *dev) +-{ +- yaffs_Object *obj; +- int nCaches = dev->nShortOpCaches; +- int i; ++ existingTarget = yaffs_find_by_name(new_dir, new_name); + +- /* Find a dirty object in the cache and flush it... +- * until there are no further dirty objects. ++ /* If the object is a file going into the unlinked directory, ++ * then it is OK to just stuff it in since duplicate names are allowed. ++ * else only proceed if the new name does not exist and if we're putting ++ * it into a directory. + */ +- do { +- obj = NULL; +- for (i = 0; i < nCaches && !obj; i++) { +- if (dev->srCache[i].object && +- dev->srCache[i].dirty) +- obj = dev->srCache[i].object; +- +- } +- if (obj) +- yaffs_FlushFilesChunkCache(obj); +- +- } while (obj); +- +-} ++ if ((unlinkOp || ++ deleteOp || ++ force || ++ (shadows > 0) || ++ !existingTarget) && ++ new_dir->variant_type == YAFFS_OBJECT_TYPE_DIRECTORY) { ++ yaffs_set_obj_name(obj, new_name); ++ obj->dirty = 1; + ++ yaffs_add_obj_to_dir(new_dir, obj); + +-/* Grab us a cache chunk for use. +- * First look for an empty one. +- * Then look for the least recently used non-dirty one. +- * Then look for the least recently used dirty one...., flush and look again. +- */ +-static yaffs_ChunkCache *yaffs_GrabChunkCacheWorker(yaffs_Device *dev) +-{ +- int i; ++ if (unlinkOp) ++ obj->unlinked = 1; + +- if (dev->nShortOpCaches > 0) { +- for (i = 0; i < dev->nShortOpCaches; i++) { +- if (!dev->srCache[i].object) +- return &dev->srCache[i]; +- } ++ /* If it is a deletion then we mark it as a shrink for gc purposes. */ ++ if (yaffs_update_oh(obj, new_name, 0, deleteOp, shadows, NULL) >= 0) ++ return YAFFS_OK; + } + +- return NULL; ++ return YAFFS_FAIL; + } + +-static yaffs_ChunkCache *yaffs_GrabChunkCache(yaffs_Device *dev) ++int yaffs_rename_obj(yaffs_obj_t *old_dir, const YCHAR *old_name, ++ yaffs_obj_t *new_dir, const YCHAR *new_name) + { +- yaffs_ChunkCache *cache; +- yaffs_Object *theObj; +- int usage; +- int i; +- int pushout; +- +- if (dev->nShortOpCaches > 0) { +- /* Try find a non-dirty one... */ +- +- cache = yaffs_GrabChunkCacheWorker(dev); ++ yaffs_obj_t *obj = NULL; ++ yaffs_obj_t *existingTarget = NULL; ++ int force = 0; ++ int result; ++ yaffs_dev_t *dev; + +- if (!cache) { +- /* They were all dirty, find the last recently used object and flush +- * its cache, then find again. +- * NB what's here is not very accurate, we actually flush the object +- * the last recently used page. +- */ + +- /* With locking we can't assume we can use entry zero */ ++ if (!old_dir || old_dir->variant_type != YAFFS_OBJECT_TYPE_DIRECTORY) ++ YBUG(); ++ if (!new_dir || new_dir->variant_type != YAFFS_OBJECT_TYPE_DIRECTORY) ++ YBUG(); + +- theObj = NULL; +- usage = -1; +- cache = NULL; +- pushout = -1; ++ dev = old_dir->my_dev; + +- for (i = 0; i < dev->nShortOpCaches; i++) { +- if (dev->srCache[i].object && +- !dev->srCache[i].locked && +- (dev->srCache[i].lastUse < usage || !cache)) { +- usage = dev->srCache[i].lastUse; +- theObj = dev->srCache[i].object; +- cache = &dev->srCache[i]; +- pushout = i; +- } +- } ++#ifdef CONFIG_YAFFS_CASE_INSENSITIVE ++ /* Special case for case insemsitive systems (eg. WinCE). ++ * While look-up is case insensitive, the name isn't. ++ * Therefore we might want to change x.txt to X.txt ++ */ ++ if (old_dir == new_dir && yaffs_strcmp(old_name, new_name) == 0) ++ force = 1; ++#endif + +- if (!cache || cache->dirty) { +- /* Flush and try again */ +- yaffs_FlushFilesChunkCache(theObj); +- cache = yaffs_GrabChunkCacheWorker(dev); +- } ++ if(yaffs_strnlen(new_name,YAFFS_MAX_NAME_LENGTH+1) > YAFFS_MAX_NAME_LENGTH) ++ /* ENAMETOOLONG */ ++ return YAFFS_FAIL; + +- } +- return cache; +- } else +- return NULL; ++ obj = yaffs_find_by_name(old_dir, old_name); + +-} ++ if (obj && obj->rename_allowed) { + +-/* Find a cached chunk */ +-static yaffs_ChunkCache *yaffs_FindChunkCache(const yaffs_Object *obj, +- int chunkId) +-{ +- yaffs_Device *dev = obj->myDev; +- int i; +- if (dev->nShortOpCaches > 0) { +- for (i = 0; i < dev->nShortOpCaches; i++) { +- if (dev->srCache[i].object == obj && +- dev->srCache[i].chunkId == chunkId) { +- dev->cacheHits++; ++ /* Now do the handling for an existing target, if there is one */ + +- return &dev->srCache[i]; +- } ++ existingTarget = yaffs_find_by_name(new_dir, new_name); ++ if (existingTarget && ++ existingTarget->variant_type == YAFFS_OBJECT_TYPE_DIRECTORY && ++ !ylist_empty(&existingTarget->variant.dir_variant.children)) { ++ /* There is a target that is a non-empty directory, so we fail */ ++ return YAFFS_FAIL; /* EEXIST or ENOTEMPTY */ ++ } else if (existingTarget && existingTarget != obj) { ++ /* Nuke the target first, using shadowing, ++ * but only if it isn't the same object. ++ * ++ * Note we must disable gc otherwise it can mess up the shadowing. ++ * ++ */ ++ dev->gc_disable=1; ++ yaffs_change_obj_name(obj, new_dir, new_name, force, ++ existingTarget->obj_id); ++ existingTarget->is_shadowed = 1; ++ yaffs_unlink_obj(existingTarget); ++ dev->gc_disable=0; + } ++ ++ result = yaffs_change_obj_name(obj, new_dir, new_name, 1, 0); ++ ++ yaffs_update_parent(old_dir); ++ if(new_dir != old_dir) ++ yaffs_update_parent(new_dir); ++ ++ return result; + } +- return NULL; ++ return YAFFS_FAIL; + } + +-/* Mark the chunk for the least recently used algorithym */ +-static void yaffs_UseChunkCache(yaffs_Device *dev, yaffs_ChunkCache *cache, +- int isAWrite) ++/*------------------------- Block Management and Page Allocation ----------------*/ ++ ++static int yaffs_init_blocks(yaffs_dev_t *dev) + { ++ int nBlocks = dev->internal_end_block - dev->internal_start_block + 1; + +- if (dev->nShortOpCaches > 0) { +- if (dev->srLastUse < 0 || dev->srLastUse > 100000000) { +- /* Reset the cache usages */ +- int i; +- for (i = 1; i < dev->nShortOpCaches; i++) +- dev->srCache[i].lastUse = 0; ++ dev->block_info = NULL; ++ dev->chunk_bits = NULL; + +- dev->srLastUse = 0; +- } ++ dev->alloc_block = -1; /* force it to get a new one */ + +- dev->srLastUse++; ++ /* If the first allocation strategy fails, thry the alternate one */ ++ dev->block_info = YMALLOC(nBlocks * sizeof(yaffs_block_info_t)); ++ if (!dev->block_info) { ++ dev->block_info = YMALLOC_ALT(nBlocks * sizeof(yaffs_block_info_t)); ++ dev->block_info_alt = 1; ++ } else ++ dev->block_info_alt = 0; + +- cache->lastUse = dev->srLastUse; ++ if (dev->block_info) { ++ /* Set up dynamic blockinfo stuff. */ ++ dev->chunk_bit_stride = (dev->param.chunks_per_block + 7) / 8; /* round up bytes */ ++ dev->chunk_bits = YMALLOC(dev->chunk_bit_stride * nBlocks); ++ if (!dev->chunk_bits) { ++ dev->chunk_bits = YMALLOC_ALT(dev->chunk_bit_stride * nBlocks); ++ dev->chunk_bits_alt = 1; ++ } else ++ dev->chunk_bits_alt = 0; ++ } + +- if (isAWrite) +- cache->dirty = 1; ++ if (dev->block_info && dev->chunk_bits) { ++ memset(dev->block_info, 0, nBlocks * sizeof(yaffs_block_info_t)); ++ memset(dev->chunk_bits, 0, dev->chunk_bit_stride * nBlocks); ++ return YAFFS_OK; + } ++ ++ return YAFFS_FAIL; + } + +-/* Invalidate a single cache page. +- * Do this when a whole page gets written, +- * ie the short cache for this page is no longer valid. +- */ +-static void yaffs_InvalidateChunkCache(yaffs_Object *object, int chunkId) ++static void yaffs_deinit_blocks(yaffs_dev_t *dev) + { +- if (object->myDev->nShortOpCaches > 0) { +- yaffs_ChunkCache *cache = yaffs_FindChunkCache(object, chunkId); ++ if (dev->block_info_alt && dev->block_info) ++ YFREE_ALT(dev->block_info); ++ else if (dev->block_info) ++ YFREE(dev->block_info); + +- if (cache) +- cache->object = NULL; +- } +-} ++ dev->block_info_alt = 0; + +-/* Invalidate all the cache pages associated with this object +- * Do this whenever ther file is deleted or resized. +- */ +-static void yaffs_InvalidateWholeChunkCache(yaffs_Object *in) +-{ +- int i; +- yaffs_Device *dev = in->myDev; ++ dev->block_info = NULL; + +- if (dev->nShortOpCaches > 0) { +- /* Invalidate it. */ +- for (i = 0; i < dev->nShortOpCaches; i++) { +- if (dev->srCache[i].object == in) +- dev->srCache[i].object = NULL; +- } +- } ++ if (dev->chunk_bits_alt && dev->chunk_bits) ++ YFREE_ALT(dev->chunk_bits); ++ else if (dev->chunk_bits) ++ YFREE(dev->chunk_bits); ++ dev->chunk_bits_alt = 0; ++ dev->chunk_bits = NULL; + } + +-/*--------------------- Checkpointing --------------------*/ ++void yaffs_block_became_dirty(yaffs_dev_t *dev, int block_no) ++{ ++ yaffs_block_info_t *bi = yaffs_get_block_info(dev, block_no); + ++ int erasedOk = 0; + +-static int yaffs_WriteCheckpointValidityMarker(yaffs_Device *dev, int head) +-{ +- yaffs_CheckpointValidity cp; ++ /* If the block is still healthy erase it and mark as clean. ++ * If the block has had a data failure, then retire it. ++ */ + +- memset(&cp, 0, sizeof(cp)); ++ T(YAFFS_TRACE_GC | YAFFS_TRACE_ERASE, ++ (TSTR("yaffs_block_became_dirty block %d state %d %s"TENDSTR), ++ block_no, bi->block_state, (bi->needs_retiring) ? "needs retiring" : "")); + +- cp.structType = sizeof(cp); +- cp.magic = YAFFS_MAGIC; +- cp.version = YAFFS_CHECKPOINT_VERSION; +- cp.head = (head) ? 1 : 0; ++ yaffs2_clear_oldest_dirty_seq(dev,bi); + +- return (yaffs_CheckpointWrite(dev, &cp, sizeof(cp)) == sizeof(cp)) ? +- 1 : 0; +-} ++ bi->block_state = YAFFS_BLOCK_STATE_DIRTY; + +-static int yaffs_ReadCheckpointValidityMarker(yaffs_Device *dev, int head) +-{ +- yaffs_CheckpointValidity cp; +- int ok; ++ /* If this is the block being garbage collected then stop gc'ing this block */ ++ if(block_no == dev->gc_block) ++ dev->gc_block = 0; + +- ok = (yaffs_CheckpointRead(dev, &cp, sizeof(cp)) == sizeof(cp)); ++ /* If this block is currently the best candidate for gc then drop as a candidate */ ++ if(block_no == dev->gc_dirtiest){ ++ dev->gc_dirtiest = 0; ++ dev->gc_pages_in_use = 0; ++ } + +- if (ok) +- ok = (cp.structType == sizeof(cp)) && +- (cp.magic == YAFFS_MAGIC) && +- (cp.version == YAFFS_CHECKPOINT_VERSION) && +- (cp.head == ((head) ? 1 : 0)); +- return ok ? 1 : 0; +-} ++ if (!bi->needs_retiring) { ++ yaffs2_checkpt_invalidate(dev); ++ erasedOk = yaffs_erase_block(dev, block_no); ++ if (!erasedOk) { ++ dev->n_erase_failures++; ++ T(YAFFS_TRACE_ERROR | YAFFS_TRACE_BAD_BLOCKS, ++ (TSTR("**>> Erasure failed %d" TENDSTR), block_no)); ++ } ++ } + +-static void yaffs_DeviceToCheckpointDevice(yaffs_CheckpointDevice *cp, +- yaffs_Device *dev) +-{ +- cp->nErasedBlocks = dev->nErasedBlocks; +- cp->allocationBlock = dev->allocationBlock; +- cp->allocationPage = dev->allocationPage; +- cp->nFreeChunks = dev->nFreeChunks; ++ if (erasedOk && ++ ((yaffs_trace_mask & YAFFS_TRACE_ERASE) || !yaffs_skip_verification(dev))) { ++ int i; ++ for (i = 0; i < dev->param.chunks_per_block; i++) { ++ if (!yaffs_check_chunk_erased ++ (dev, block_no * dev->param.chunks_per_block + i)) { ++ T(YAFFS_TRACE_ERROR, ++ (TSTR ++ (">>Block %d erasure supposedly OK, but chunk %d not erased" ++ TENDSTR), block_no, i)); ++ } ++ } ++ } ++ ++ if (erasedOk) { ++ /* Clean it up... */ ++ bi->block_state = YAFFS_BLOCK_STATE_EMPTY; ++ bi->seq_number = 0; ++ dev->n_erased_blocks++; ++ bi->pages_in_use = 0; ++ bi->soft_del_pages = 0; ++ bi->has_shrink_hdr = 0; ++ bi->skip_erased_check = 1; /* This is clean, so no need to check */ ++ bi->gc_prioritise = 0; ++ yaffs_clear_chunk_bits(dev, block_no); + +- cp->nDeletedFiles = dev->nDeletedFiles; +- cp->nUnlinkedFiles = dev->nUnlinkedFiles; +- cp->nBackgroundDeletions = dev->nBackgroundDeletions; +- cp->sequenceNumber = dev->sequenceNumber; +- cp->oldestDirtySequence = dev->oldestDirtySequence; ++ T(YAFFS_TRACE_ERASE, ++ (TSTR("Erased block %d" TENDSTR), block_no)); ++ } else { ++ dev->n_free_chunks -= dev->param.chunks_per_block; /* We lost a block of free space */ + ++ yaffs_retire_block(dev, block_no); ++ T(YAFFS_TRACE_ERROR | YAFFS_TRACE_BAD_BLOCKS, ++ (TSTR("**>> Block %d retired" TENDSTR), block_no)); ++ } + } + +-static void yaffs_CheckpointDeviceToDevice(yaffs_Device *dev, +- yaffs_CheckpointDevice *cp) ++static int yaffs_find_alloc_block(yaffs_dev_t *dev) + { +- dev->nErasedBlocks = cp->nErasedBlocks; +- dev->allocationBlock = cp->allocationBlock; +- dev->allocationPage = cp->allocationPage; +- dev->nFreeChunks = cp->nFreeChunks; +- +- dev->nDeletedFiles = cp->nDeletedFiles; +- dev->nUnlinkedFiles = cp->nUnlinkedFiles; +- dev->nBackgroundDeletions = cp->nBackgroundDeletions; +- dev->sequenceNumber = cp->sequenceNumber; +- dev->oldestDirtySequence = cp->oldestDirtySequence; +-} ++ int i; + ++ yaffs_block_info_t *bi; + +-static int yaffs_WriteCheckpointDevice(yaffs_Device *dev) +-{ +- yaffs_CheckpointDevice cp; +- __u32 nBytes; +- __u32 nBlocks = (dev->internalEndBlock - dev->internalStartBlock + 1); ++ if (dev->n_erased_blocks < 1) { ++ /* Hoosterman we've got a problem. ++ * Can't get space to gc ++ */ ++ T(YAFFS_TRACE_ERROR, ++ (TSTR("yaffs tragedy: no more erased blocks" TENDSTR))); + +- int ok; ++ return -1; ++ } + +- /* Write device runtime values*/ +- yaffs_DeviceToCheckpointDevice(&cp, dev); +- cp.structType = sizeof(cp); ++ /* Find an empty block. */ + +- ok = (yaffs_CheckpointWrite(dev, &cp, sizeof(cp)) == sizeof(cp)); ++ for (i = dev->internal_start_block; i <= dev->internal_end_block; i++) { ++ dev->alloc_block_finder++; ++ if (dev->alloc_block_finder < dev->internal_start_block ++ || dev->alloc_block_finder > dev->internal_end_block) { ++ dev->alloc_block_finder = dev->internal_start_block; ++ } + +- /* Write block info */ +- if (ok) { +- nBytes = nBlocks * sizeof(yaffs_BlockInfo); +- ok = (yaffs_CheckpointWrite(dev, dev->blockInfo, nBytes) == nBytes); ++ bi = yaffs_get_block_info(dev, dev->alloc_block_finder); ++ ++ if (bi->block_state == YAFFS_BLOCK_STATE_EMPTY) { ++ bi->block_state = YAFFS_BLOCK_STATE_ALLOCATING; ++ dev->seq_number++; ++ bi->seq_number = dev->seq_number; ++ dev->n_erased_blocks--; ++ T(YAFFS_TRACE_ALLOCATE, ++ (TSTR("Allocated block %d, seq %d, %d left" TENDSTR), ++ dev->alloc_block_finder, dev->seq_number, ++ dev->n_erased_blocks)); ++ return dev->alloc_block_finder; ++ } + } + +- /* Write chunk bits */ +- if (ok) { +- nBytes = nBlocks * dev->chunkBitmapStride; +- ok = (yaffs_CheckpointWrite(dev, dev->chunkBits, nBytes) == nBytes); +- } +- return ok ? 1 : 0; ++ T(YAFFS_TRACE_ALWAYS, ++ (TSTR ++ ("yaffs tragedy: no more erased blocks, but there should have been %d" ++ TENDSTR), dev->n_erased_blocks)); + ++ return -1; + } + +-static int yaffs_ReadCheckpointDevice(yaffs_Device *dev) ++ ++/* ++ * Check if there's space to allocate... ++ * Thinks.... do we need top make this ths same as yaffs_get_free_chunks()? ++ */ ++int yaffs_check_alloc_available(yaffs_dev_t *dev, int n_chunks) + { +- yaffs_CheckpointDevice cp; +- __u32 nBytes; +- __u32 nBlocks = (dev->internalEndBlock - dev->internalStartBlock + 1); ++ int reservedChunks; ++ int reservedBlocks = dev->param.n_reserved_blocks; ++ int checkpointBlocks; + +- int ok; ++ checkpointBlocks = yaffs_calc_checkpt_blocks_required(dev); + +- ok = (yaffs_CheckpointRead(dev, &cp, sizeof(cp)) == sizeof(cp)); +- if (!ok) +- return 0; ++ reservedChunks = ((reservedBlocks + checkpointBlocks) * dev->param.chunks_per_block); + +- if (cp.structType != sizeof(cp)) +- return 0; ++ return (dev->n_free_chunks > (reservedChunks + n_chunks)); ++} ++ ++static int yaffs_alloc_chunk(yaffs_dev_t *dev, int useReserve, ++ yaffs_block_info_t **blockUsedPtr) ++{ ++ int retVal; ++ yaffs_block_info_t *bi; ++ ++ if (dev->alloc_block < 0) { ++ /* Get next block to allocate off */ ++ dev->alloc_block = yaffs_find_alloc_block(dev); ++ dev->alloc_page = 0; ++ } + ++ if (!useReserve && !yaffs_check_alloc_available(dev, 1)) { ++ /* Not enough space to allocate unless we're allowed to use the reserve. */ ++ return -1; ++ } + +- yaffs_CheckpointDeviceToDevice(dev, &cp); ++ if (dev->n_erased_blocks < dev->param.n_reserved_blocks ++ && dev->alloc_page == 0) { ++ T(YAFFS_TRACE_ALLOCATE, (TSTR("Allocating reserve" TENDSTR))); ++ } + +- nBytes = nBlocks * sizeof(yaffs_BlockInfo); ++ /* Next page please.... */ ++ if (dev->alloc_block >= 0) { ++ bi = yaffs_get_block_info(dev, dev->alloc_block); + +- ok = (yaffs_CheckpointRead(dev, dev->blockInfo, nBytes) == nBytes); ++ retVal = (dev->alloc_block * dev->param.chunks_per_block) + ++ dev->alloc_page; ++ bi->pages_in_use++; ++ yaffs_set_chunk_bit(dev, dev->alloc_block, ++ dev->alloc_page); + +- if (!ok) +- return 0; +- nBytes = nBlocks * dev->chunkBitmapStride; ++ dev->alloc_page++; + +- ok = (yaffs_CheckpointRead(dev, dev->chunkBits, nBytes) == nBytes); ++ dev->n_free_chunks--; + +- return ok ? 1 : 0; +-} ++ /* If the block is full set the state to full */ ++ if (dev->alloc_page >= dev->param.chunks_per_block) { ++ bi->block_state = YAFFS_BLOCK_STATE_FULL; ++ dev->alloc_block = -1; ++ } + +-static void yaffs_ObjectToCheckpointObject(yaffs_CheckpointObject *cp, +- yaffs_Object *obj) +-{ ++ if (blockUsedPtr) ++ *blockUsedPtr = bi; ++ ++ return retVal; ++ } + +- cp->objectId = obj->objectId; +- cp->parentId = (obj->parent) ? obj->parent->objectId : 0; +- cp->hdrChunk = obj->hdrChunk; +- cp->variantType = obj->variantType; +- cp->deleted = obj->deleted; +- cp->softDeleted = obj->softDeleted; +- cp->unlinked = obj->unlinked; +- cp->fake = obj->fake; +- cp->renameAllowed = obj->renameAllowed; +- cp->unlinkAllowed = obj->unlinkAllowed; +- cp->serial = obj->serial; +- cp->nDataChunks = obj->nDataChunks; ++ T(YAFFS_TRACE_ERROR, ++ (TSTR("!!!!!!!!! Allocator out !!!!!!!!!!!!!!!!!" TENDSTR))); + +- if (obj->variantType == YAFFS_OBJECT_TYPE_FILE) +- cp->fileSizeOrEquivalentObjectId = obj->variant.fileVariant.fileSize; +- else if (obj->variantType == YAFFS_OBJECT_TYPE_HARDLINK) +- cp->fileSizeOrEquivalentObjectId = obj->variant.hardLinkVariant.equivalentObjectId; ++ return -1; + } + +-static int yaffs_CheckpointObjectToObject(yaffs_Object *obj, yaffs_CheckpointObject *cp) ++static int yaffs_get_erased_chunks(yaffs_dev_t *dev) + { ++ int n; + +- yaffs_Object *parent; ++ n = dev->n_erased_blocks * dev->param.chunks_per_block; + +- if (obj->variantType != cp->variantType) { +- T(YAFFS_TRACE_ERROR, (TSTR("Checkpoint read object %d type %d " +- TCONT("chunk %d does not match existing object type %d") +- TENDSTR), cp->objectId, cp->variantType, cp->hdrChunk, +- obj->variantType)); +- return 0; +- } ++ if (dev->alloc_block > 0) ++ n += (dev->param.chunks_per_block - dev->alloc_page); + +- obj->objectId = cp->objectId; ++ return n; + +- if (cp->parentId) +- parent = yaffs_FindOrCreateObjectByNumber( +- obj->myDev, +- cp->parentId, +- YAFFS_OBJECT_TYPE_DIRECTORY); +- else +- parent = NULL; ++} + +- if (parent) { +- if (parent->variantType != YAFFS_OBJECT_TYPE_DIRECTORY) { +- T(YAFFS_TRACE_ALWAYS, (TSTR("Checkpoint read object %d parent %d type %d" +- TCONT(" chunk %d Parent type, %d, not directory") +- TENDSTR), +- cp->objectId, cp->parentId, cp->variantType, +- cp->hdrChunk, parent->variantType)); +- return 0; ++/* ++ * yaffs_skip_rest_of_block() skips over the rest of the allocation block ++ * if we don't want to write to it. ++ */ ++void yaffs_skip_rest_of_block(yaffs_dev_t *dev) ++{ ++ if(dev->alloc_block > 0){ ++ yaffs_block_info_t *bi = yaffs_get_block_info(dev, dev->alloc_block); ++ if(bi->block_state == YAFFS_BLOCK_STATE_ALLOCATING){ ++ bi->block_state = YAFFS_BLOCK_STATE_FULL; ++ dev->alloc_block = -1; + } +- yaffs_AddObjectToDirectory(parent, obj); + } +- +- obj->hdrChunk = cp->hdrChunk; +- obj->variantType = cp->variantType; +- obj->deleted = cp->deleted; +- obj->softDeleted = cp->softDeleted; +- obj->unlinked = cp->unlinked; +- obj->fake = cp->fake; +- obj->renameAllowed = cp->renameAllowed; +- obj->unlinkAllowed = cp->unlinkAllowed; +- obj->serial = cp->serial; +- obj->nDataChunks = cp->nDataChunks; +- +- if (obj->variantType == YAFFS_OBJECT_TYPE_FILE) +- obj->variant.fileVariant.fileSize = cp->fileSizeOrEquivalentObjectId; +- else if (obj->variantType == YAFFS_OBJECT_TYPE_HARDLINK) +- obj->variant.hardLinkVariant.equivalentObjectId = cp->fileSizeOrEquivalentObjectId; +- +- if (obj->hdrChunk > 0) +- obj->lazyLoaded = 1; +- return 1; + } + + +- +-static int yaffs_CheckpointTnodeWorker(yaffs_Object *in, yaffs_Tnode *tn, +- __u32 level, int chunkOffset) ++static int yaffs_gc_block(yaffs_dev_t *dev, int block, ++ int wholeBlock) + { ++ int oldChunk; ++ int newChunk; ++ int mark_flash; ++ int retVal = YAFFS_OK; + int i; +- yaffs_Device *dev = in->myDev; +- int ok = 1; +- int tnodeSize = (dev->tnodeWidth * YAFFS_NTNODES_LEVEL0)/8; +- +- if (tnodeSize < sizeof(yaffs_Tnode)) +- tnodeSize = sizeof(yaffs_Tnode); ++ int isCheckpointBlock; ++ int matchingChunk; ++ int maxCopies; + ++ int chunksBefore = yaffs_get_erased_chunks(dev); ++ int chunksAfter; + +- if (tn) { +- if (level > 0) { ++ yaffs_ext_tags tags; + +- for (i = 0; i < YAFFS_NTNODES_INTERNAL && ok; i++) { +- if (tn->internal[i]) { +- ok = yaffs_CheckpointTnodeWorker(in, +- tn->internal[i], +- level - 1, +- (chunkOffset<block_state == YAFFS_BLOCK_STATE_CHECKPOINT); + +-static int yaffs_WriteCheckpointTnodes(yaffs_Object *obj) +-{ +- __u32 endMarker = ~0; +- int ok = 1; + +- if (obj->variantType == YAFFS_OBJECT_TYPE_FILE) { +- ok = yaffs_CheckpointTnodeWorker(obj, +- obj->variant.fileVariant.top, +- obj->variant.fileVariant.topLevel, +- 0); +- if (ok) +- ok = (yaffs_CheckpointWrite(obj->myDev, &endMarker, sizeof(endMarker)) == +- sizeof(endMarker)); +- } ++ T(YAFFS_TRACE_TRACING, ++ (TSTR("Collecting block %d, in use %d, shrink %d, wholeBlock %d" TENDSTR), ++ block, ++ bi->pages_in_use, ++ bi->has_shrink_hdr, ++ wholeBlock)); + +- return ok ? 1 : 0; +-} ++ /*yaffs_verify_free_chunks(dev); */ + +-static int yaffs_ReadCheckpointTnodes(yaffs_Object *obj) +-{ +- __u32 baseChunk; +- int ok = 1; +- yaffs_Device *dev = obj->myDev; +- yaffs_FileStructure *fileStructPtr = &obj->variant.fileVariant; +- yaffs_Tnode *tn; +- int nread = 0; +- int tnodeSize = (dev->tnodeWidth * YAFFS_NTNODES_LEVEL0)/8; ++ if(bi->block_state == YAFFS_BLOCK_STATE_FULL) ++ bi->block_state = YAFFS_BLOCK_STATE_COLLECTING; ++ ++ bi->has_shrink_hdr = 0; /* clear the flag so that the block can erase */ + +- if (tnodeSize < sizeof(yaffs_Tnode)) +- tnodeSize = sizeof(yaffs_Tnode); ++ dev->gc_disable = 1; + +- ok = (yaffs_CheckpointRead(dev, &baseChunk, sizeof(baseChunk)) == sizeof(baseChunk)); ++ if (isCheckpointBlock || ++ !yaffs_still_some_chunks(dev, block)) { ++ T(YAFFS_TRACE_TRACING, ++ (TSTR ++ ("Collecting block %d that has no chunks in use" TENDSTR), ++ block)); ++ yaffs_block_became_dirty(dev, block); ++ } else { + +- while (ok && (~baseChunk)) { +- nread++; +- /* Read level 0 tnode */ ++ __u8 *buffer = yaffs_get_temp_buffer(dev, __LINE__); + ++ yaffs_verify_blk(dev, bi, block); + +- tn = yaffs_GetTnodeRaw(dev); +- if (tn) +- ok = (yaffs_CheckpointRead(dev, tn, tnodeSize) == tnodeSize); +- else +- ok = 0; ++ maxCopies = (wholeBlock) ? dev->param.chunks_per_block : 5; ++ oldChunk = block * dev->param.chunks_per_block + dev->gc_chunk; + +- if (tn && ok) +- ok = yaffs_AddOrFindLevel0Tnode(dev, +- fileStructPtr, +- baseChunk, +- tn) ? 1 : 0; ++ for (/* init already done */; ++ retVal == YAFFS_OK && ++ dev->gc_chunk < dev->param.chunks_per_block && ++ (bi->block_state == YAFFS_BLOCK_STATE_COLLECTING) && ++ maxCopies > 0; ++ dev->gc_chunk++, oldChunk++) { ++ if (yaffs_check_chunk_bit(dev, block, dev->gc_chunk)) { + +- if (ok) +- ok = (yaffs_CheckpointRead(dev, &baseChunk, sizeof(baseChunk)) == sizeof(baseChunk)); ++ /* This page is in use and might need to be copied off */ + +- } ++ maxCopies--; + +- T(YAFFS_TRACE_CHECKPOINT, ( +- TSTR("Checkpoint read tnodes %d records, last %d. ok %d" TENDSTR), +- nread, baseChunk, ok)); ++ mark_flash = 1; + +- return ok ? 1 : 0; +-} ++ yaffs_init_tags(&tags); + ++ yaffs_rd_chunk_tags_nand(dev, oldChunk, ++ buffer, &tags); + +-static int yaffs_WriteCheckpointObjects(yaffs_Device *dev) +-{ +- yaffs_Object *obj; +- yaffs_CheckpointObject cp; +- int i; +- int ok = 1; +- struct ylist_head *lh; ++ object = ++ yaffs_find_by_number(dev, ++ tags.obj_id); + ++ T(YAFFS_TRACE_GC_DETAIL, ++ (TSTR ++ ("Collecting chunk in block %d, %d %d %d " TENDSTR), ++ dev->gc_chunk, tags.obj_id, tags.chunk_id, ++ tags.n_bytes)); + +- /* Iterate through the objects in each hash entry, +- * dumping them to the checkpointing stream. +- */ ++ if (object && !yaffs_skip_verification(dev)) { ++ if (tags.chunk_id == 0) ++ matchingChunk = object->hdr_chunk; ++ else if (object->soft_del) ++ matchingChunk = oldChunk; /* Defeat the test */ ++ else ++ matchingChunk = yaffs_find_chunk_in_file(object, tags.chunk_id, NULL); + +- for (i = 0; ok && i < YAFFS_NOBJECT_BUCKETS; i++) { +- ylist_for_each(lh, &dev->objectBucket[i].list) { +- if (lh) { +- obj = ylist_entry(lh, yaffs_Object, hashLink); +- if (!obj->deferedFree) { +- yaffs_ObjectToCheckpointObject(&cp, obj); +- cp.structType = sizeof(cp); +- +- T(YAFFS_TRACE_CHECKPOINT, ( +- TSTR("Checkpoint write object %d parent %d type %d chunk %d obj addr %x" TENDSTR), +- cp.objectId, cp.parentId, cp.variantType, cp.hdrChunk, (unsigned) obj)); ++ if (oldChunk != matchingChunk) ++ T(YAFFS_TRACE_ERROR, ++ (TSTR("gc: page in gc mismatch: %d %d %d %d"TENDSTR), ++ oldChunk, matchingChunk, tags.obj_id, tags.chunk_id)); + +- ok = (yaffs_CheckpointWrite(dev, &cp, sizeof(cp)) == sizeof(cp)); ++ } + +- if (ok && obj->variantType == YAFFS_OBJECT_TYPE_FILE) +- ok = yaffs_WriteCheckpointTnodes(obj); ++ if (!object) { ++ T(YAFFS_TRACE_ERROR, ++ (TSTR ++ ("page %d in gc has no object: %d %d %d " ++ TENDSTR), oldChunk, ++ tags.obj_id, tags.chunk_id, tags.n_bytes)); + } +- } +- } +- } + +- /* Dump end of list */ +- memset(&cp, 0xFF, sizeof(yaffs_CheckpointObject)); +- cp.structType = sizeof(cp); ++ if (object && ++ object->deleted && ++ object->soft_del && ++ tags.chunk_id != 0) { ++ /* Data chunk in a soft deleted file, throw it away ++ * It's a soft deleted data chunk, ++ * No need to copy this, just forget about it and ++ * fix up the object. ++ */ ++ ++ /* Free chunks already includes softdeleted chunks. ++ * How ever this chunk is going to soon be really deleted ++ * which will increment free chunks. ++ * We have to decrement free chunks so this works out properly. ++ */ ++ dev->n_free_chunks--; ++ bi->soft_del_pages--; ++ ++ object->n_data_chunks--; + +- if (ok) +- ok = (yaffs_CheckpointWrite(dev, &cp, sizeof(cp)) == sizeof(cp)); ++ if (object->n_data_chunks <= 0) { ++ /* remeber to clean up the object */ ++ dev->gc_cleanup_list[dev->n_clean_ups] = ++ tags.obj_id; ++ dev->n_clean_ups++; ++ } ++ mark_flash = 0; ++ } else if (0) { ++ /* Todo object && object->deleted && object->n_data_chunks == 0 */ ++ /* Deleted object header with no data chunks. ++ * Can be discarded and the file deleted. ++ */ ++ object->hdr_chunk = 0; ++ yaffs_free_tnode(object->my_dev, ++ object->variant. ++ file_variant.top); ++ object->variant.file_variant.top = NULL; ++ yaffs_generic_obj_del(object); + +- return ok ? 1 : 0; +-} ++ } else if (object) { ++ /* It's either a data chunk in a live file or ++ * an ObjectHeader, so we're interested in it. ++ * NB Need to keep the ObjectHeaders of deleted files ++ * until the whole file has been deleted off ++ */ ++ tags.serial_number++; + +-static int yaffs_ReadCheckpointObjects(yaffs_Device *dev) +-{ +- yaffs_Object *obj; +- yaffs_CheckpointObject cp; +- int ok = 1; +- int done = 0; +- yaffs_Object *hardList = NULL; ++ dev->n_gc_copies++; + +- while (ok && !done) { +- ok = (yaffs_CheckpointRead(dev, &cp, sizeof(cp)) == sizeof(cp)); +- if (cp.structType != sizeof(cp)) { +- T(YAFFS_TRACE_CHECKPOINT, (TSTR("struct size %d instead of %d ok %d"TENDSTR), +- cp.structType, sizeof(cp), ok)); +- ok = 0; +- } +- +- T(YAFFS_TRACE_CHECKPOINT, (TSTR("Checkpoint read object %d parent %d type %d chunk %d " TENDSTR), +- cp.objectId, cp.parentId, cp.variantType, cp.hdrChunk)); +- +- if (ok && cp.objectId == ~0) +- done = 1; +- else if (ok) { +- obj = yaffs_FindOrCreateObjectByNumber(dev, cp.objectId, cp.variantType); +- if (obj) { +- ok = yaffs_CheckpointObjectToObject(obj, &cp); +- if (!ok) +- break; +- if (obj->variantType == YAFFS_OBJECT_TYPE_FILE) { +- ok = yaffs_ReadCheckpointTnodes(obj); +- } else if (obj->variantType == YAFFS_OBJECT_TYPE_HARDLINK) { +- obj->hardLinks.next = +- (struct ylist_head *) hardList; +- hardList = obj; +- } +- } else +- ok = 0; +- } +- } ++ if (tags.chunk_id == 0) { ++ /* It is an object Id, ++ * We need to nuke the shrinkheader flags first ++ * Also need to clean up shadowing. ++ * We no longer want the shrinkHeader flag since its work is done ++ * and if it is left in place it will mess up scanning. ++ */ + +- if (ok) +- yaffs_HardlinkFixup(dev, hardList); ++ yaffs_obj_header *oh; ++ oh = (yaffs_obj_header *)buffer; + +- return ok ? 1 : 0; +-} ++ oh->is_shrink = 0; ++ tags.extra_is_shrink = 0; + +-static int yaffs_WriteCheckpointSum(yaffs_Device *dev) +-{ +- __u32 checkpointSum; +- int ok; ++ oh->shadows_obj = 0; ++ oh->inband_shadowed_obj_id = 0; ++ tags.extra_shadows = 0; ++ ++ /* Update file size */ ++ if(object->variant_type == YAFFS_OBJECT_TYPE_FILE){ ++ oh->file_size = object->variant.file_variant.file_size; ++ tags.extra_length = oh->file_size; ++ } ++ ++ yaffs_verify_oh(object, oh, &tags, 1); ++ newChunk = ++ yaffs_write_new_chunk(dev,(__u8 *) oh, &tags, 1); ++ } else ++ newChunk = ++ yaffs_write_new_chunk(dev, buffer, &tags, 1); ++ ++ if (newChunk < 0) { ++ retVal = YAFFS_FAIL; ++ } else { + +- yaffs_GetCheckpointSum(dev, &checkpointSum); ++ /* Ok, now fix up the Tnodes etc. */ + +- ok = (yaffs_CheckpointWrite(dev, &checkpointSum, sizeof(checkpointSum)) == sizeof(checkpointSum)); ++ if (tags.chunk_id == 0) { ++ /* It's a header */ ++ object->hdr_chunk = newChunk; ++ object->serial = tags.serial_number; ++ } else { ++ /* It's a data chunk */ ++ int ok; ++ ok = yaffs_put_chunk_in_file ++ (object, ++ tags.chunk_id, ++ newChunk, 0); ++ } ++ } ++ } + +- if (!ok) +- return 0; ++ if (retVal == YAFFS_OK) ++ yaffs_chunk_del(dev, oldChunk, mark_flash, __LINE__); + +- return 1; +-} ++ } ++ } + +-static int yaffs_ReadCheckpointSum(yaffs_Device *dev) +-{ +- __u32 checkpointSum0; +- __u32 checkpointSum1; +- int ok; ++ yaffs_release_temp_buffer(dev, buffer, __LINE__); + +- yaffs_GetCheckpointSum(dev, &checkpointSum0); + +- ok = (yaffs_CheckpointRead(dev, &checkpointSum1, sizeof(checkpointSum1)) == sizeof(checkpointSum1)); + +- if (!ok) +- return 0; ++ } + +- if (checkpointSum0 != checkpointSum1) +- return 0; ++ yaffs_verify_collected_blk(dev, bi, block); + +- return 1; +-} + + +-static int yaffs_WriteCheckpointData(yaffs_Device *dev) +-{ +- int ok = 1; ++ if (bi->block_state == YAFFS_BLOCK_STATE_COLLECTING) { ++ /* ++ * The gc did not complete. Set block state back to FULL ++ * because checkpointing does not restore gc. ++ */ ++ bi->block_state = YAFFS_BLOCK_STATE_FULL; ++ } else { ++ /* The gc completed. */ ++ /* Do any required cleanups */ ++ for (i = 0; i < dev->n_clean_ups; i++) { ++ /* Time to delete the file too */ ++ object = ++ yaffs_find_by_number(dev, ++ dev->gc_cleanup_list[i]); ++ if (object) { ++ yaffs_free_tnode(dev, ++ object->variant.file_variant. ++ top); ++ object->variant.file_variant.top = NULL; ++ T(YAFFS_TRACE_GC, ++ (TSTR ++ ("yaffs: About to finally delete object %d" ++ TENDSTR), object->obj_id)); ++ yaffs_generic_obj_del(object); ++ object->my_dev->n_deleted_files--; ++ } + +- if (dev->skipCheckpointWrite || !dev->isYaffs2) { +- T(YAFFS_TRACE_CHECKPOINT, (TSTR("skipping checkpoint write" TENDSTR))); +- ok = 0; +- } ++ } + +- if (ok) +- ok = yaffs_CheckpointOpen(dev, 1); + +- if (ok) { +- T(YAFFS_TRACE_CHECKPOINT, (TSTR("write checkpoint validity" TENDSTR))); +- ok = yaffs_WriteCheckpointValidityMarker(dev, 1); +- } +- if (ok) { +- T(YAFFS_TRACE_CHECKPOINT, (TSTR("write checkpoint device" TENDSTR))); +- ok = yaffs_WriteCheckpointDevice(dev); +- } +- if (ok) { +- T(YAFFS_TRACE_CHECKPOINT, (TSTR("write checkpoint objects" TENDSTR))); +- ok = yaffs_WriteCheckpointObjects(dev); +- } +- if (ok) { +- T(YAFFS_TRACE_CHECKPOINT, (TSTR("write checkpoint validity" TENDSTR))); +- ok = yaffs_WriteCheckpointValidityMarker(dev, 0); ++ chunksAfter = yaffs_get_erased_chunks(dev); ++ if (chunksBefore >= chunksAfter) { ++ T(YAFFS_TRACE_GC, ++ (TSTR ++ ("gc did not increase free chunks before %d after %d" ++ TENDSTR), chunksBefore, chunksAfter)); ++ } ++ dev->gc_block = 0; ++ dev->gc_chunk = 0; ++ dev->n_clean_ups = 0; + } + +- if (ok) +- ok = yaffs_WriteCheckpointSum(dev); +- +- if (!yaffs_CheckpointClose(dev)) +- ok = 0; +- +- if (ok) +- dev->isCheckpointed = 1; +- else +- dev->isCheckpointed = 0; ++ dev->gc_disable = 0; + +- return dev->isCheckpointed; ++ return retVal; + } + +-static int yaffs_ReadCheckpointData(yaffs_Device *dev) ++/* ++ * FindBlockForgarbageCollection is used to select the dirtiest block (or close enough) ++ * for garbage collection. ++ */ ++ ++static unsigned yaffs_find_gc_block(yaffs_dev_t *dev, ++ int aggressive, ++ int background) + { +- int ok = 1; ++ int i; ++ int iterations; ++ unsigned selected = 0; ++ int prioritised = 0; ++ int prioritisedExists = 0; ++ yaffs_block_info_t *bi; ++ int threshold; + +- if (dev->skipCheckpointRead || !dev->isYaffs2) { +- T(YAFFS_TRACE_CHECKPOINT, (TSTR("skipping checkpoint read" TENDSTR))); +- ok = 0; +- } ++ /* First let's see if we need to grab a prioritised block */ ++ if (dev->has_pending_prioritised_gc && !aggressive) { ++ dev->gc_dirtiest = 0; ++ bi = dev->block_info; ++ for (i = dev->internal_start_block; ++ i <= dev->internal_end_block && !selected; ++ i++) { ++ ++ if (bi->gc_prioritise) { ++ prioritisedExists = 1; ++ if (bi->block_state == YAFFS_BLOCK_STATE_FULL && ++ yaffs_block_ok_for_gc(dev, bi)) { ++ selected = i; ++ prioritised = 1; ++ } ++ } ++ bi++; ++ } + +- if (ok) +- ok = yaffs_CheckpointOpen(dev, 0); /* open for read */ ++ /* ++ * If there is a prioritised block and none was selected then ++ * this happened because there is at least one old dirty block gumming ++ * up the works. Let's gc the oldest dirty block. ++ */ + +- if (ok) { +- T(YAFFS_TRACE_CHECKPOINT, (TSTR("read checkpoint validity" TENDSTR))); +- ok = yaffs_ReadCheckpointValidityMarker(dev, 1); +- } +- if (ok) { +- T(YAFFS_TRACE_CHECKPOINT, (TSTR("read checkpoint device" TENDSTR))); +- ok = yaffs_ReadCheckpointDevice(dev); +- } +- if (ok) { +- T(YAFFS_TRACE_CHECKPOINT, (TSTR("read checkpoint objects" TENDSTR))); +- ok = yaffs_ReadCheckpointObjects(dev); +- } +- if (ok) { +- T(YAFFS_TRACE_CHECKPOINT, (TSTR("read checkpoint validity" TENDSTR))); +- ok = yaffs_ReadCheckpointValidityMarker(dev, 0); +- } ++ if(prioritisedExists && ++ !selected && ++ dev->oldest_dirty_block > 0) ++ selected = dev->oldest_dirty_block; + +- if (ok) { +- ok = yaffs_ReadCheckpointSum(dev); +- T(YAFFS_TRACE_CHECKPOINT, (TSTR("read checkpoint checksum %d" TENDSTR), ok)); ++ if (!prioritisedExists) /* None found, so we can clear this */ ++ dev->has_pending_prioritised_gc = 0; + } + +- if (!yaffs_CheckpointClose(dev)) +- ok = 0; +- +- if (ok) +- dev->isCheckpointed = 1; +- else +- dev->isCheckpointed = 0; +- +- return ok ? 1 : 0; ++ /* If we're doing aggressive GC then we are happy to take a less-dirty block, and ++ * search harder. ++ * else (we're doing a leasurely gc), then we only bother to do this if the ++ * block has only a few pages in use. ++ */ + +-} ++ if (!selected){ ++ int pagesUsed; ++ int nBlocks = dev->internal_end_block - dev->internal_start_block + 1; ++ if (aggressive){ ++ threshold = dev->param.chunks_per_block; ++ iterations = nBlocks; ++ } else { ++ int maxThreshold; + +-static void yaffs_InvalidateCheckpoint(yaffs_Device *dev) +-{ +- if (dev->isCheckpointed || +- dev->blocksInCheckpoint > 0) { +- dev->isCheckpointed = 0; +- yaffs_CheckpointInvalidateStream(dev); +- if (dev->superBlock && dev->markSuperBlockDirty) +- dev->markSuperBlockDirty(dev->superBlock); +- } +-} ++ if(background) ++ maxThreshold = dev->param.chunks_per_block/2; ++ else ++ maxThreshold = dev->param.chunks_per_block/8; + ++ if(maxThreshold < YAFFS_GC_PASSIVE_THRESHOLD) ++ maxThreshold = YAFFS_GC_PASSIVE_THRESHOLD; + +-int yaffs_CheckpointSave(yaffs_Device *dev) +-{ ++ threshold = background ? ++ (dev->gc_not_done + 2) * 2 : 0; ++ if(threshold maxThreshold) ++ threshold = maxThreshold; + +- T(YAFFS_TRACE_CHECKPOINT, (TSTR("save entry: isCheckpointed %d"TENDSTR), dev->isCheckpointed)); ++ iterations = nBlocks / 16 + 1; ++ if (iterations > 100) ++ iterations = 100; ++ } + +- yaffs_VerifyObjects(dev); +- yaffs_VerifyBlocks(dev); +- yaffs_VerifyFreeChunks(dev); ++ for (i = 0; ++ i < iterations && ++ (dev->gc_dirtiest < 1 || ++ dev->gc_pages_in_use > YAFFS_GC_GOOD_ENOUGH); ++ i++) { ++ dev->gc_block_finder++; ++ if (dev->gc_block_finder < dev->internal_start_block || ++ dev->gc_block_finder > dev->internal_end_block) ++ dev->gc_block_finder = dev->internal_start_block; + +- if (!dev->isCheckpointed) { +- yaffs_InvalidateCheckpoint(dev); +- yaffs_WriteCheckpointData(dev); +- } ++ bi = yaffs_get_block_info(dev, dev->gc_block_finder); + +- T(YAFFS_TRACE_ALWAYS, (TSTR("save exit: isCheckpointed %d"TENDSTR), dev->isCheckpointed)); ++ pagesUsed = bi->pages_in_use - bi->soft_del_pages; + +- return dev->isCheckpointed; +-} ++ if (bi->block_state == YAFFS_BLOCK_STATE_FULL && ++ pagesUsed < dev->param.chunks_per_block && ++ (dev->gc_dirtiest < 1 || pagesUsed < dev->gc_pages_in_use) && ++ yaffs_block_ok_for_gc(dev, bi)) { ++ dev->gc_dirtiest = dev->gc_block_finder; ++ dev->gc_pages_in_use = pagesUsed; ++ } ++ } + +-int yaffs_CheckpointRestore(yaffs_Device *dev) +-{ +- int retval; +- T(YAFFS_TRACE_CHECKPOINT, (TSTR("restore entry: isCheckpointed %d"TENDSTR), dev->isCheckpointed)); ++ if(dev->gc_dirtiest > 0 && dev->gc_pages_in_use <= threshold) ++ selected = dev->gc_dirtiest; ++ } + +- retval = yaffs_ReadCheckpointData(dev); ++ /* ++ * If nothing has been selected for a while, try selecting the oldest dirty ++ * because that's gumming up the works. ++ */ + +- if (dev->isCheckpointed) { +- yaffs_VerifyObjects(dev); +- yaffs_VerifyBlocks(dev); +- yaffs_VerifyFreeChunks(dev); ++ if(!selected && dev->param.is_yaffs2 && ++ dev->gc_not_done >= ( background ? 10 : 20)){ ++ yaffs2_find_oldest_dirty_seq(dev); ++ if(dev->oldest_dirty_block > 0) { ++ selected = dev->oldest_dirty_block; ++ dev->gc_dirtiest = selected; ++ dev->oldest_dirty_gc_count++; ++ bi = yaffs_get_block_info(dev, selected); ++ dev->gc_pages_in_use = bi->pages_in_use - bi->soft_del_pages; ++ } else ++ dev->gc_not_done = 0; + } + +- T(YAFFS_TRACE_CHECKPOINT, (TSTR("restore exit: isCheckpointed %d"TENDSTR), dev->isCheckpointed)); ++ if(selected){ ++ T(YAFFS_TRACE_GC, ++ (TSTR("GC Selected block %d with %d free, prioritised:%d" TENDSTR), ++ selected, ++ dev->param.chunks_per_block - dev->gc_pages_in_use, ++ prioritised)); ++ ++ dev->n_gc_blocks++; ++ if(background) ++ dev->bg_gcs++; ++ ++ dev->gc_dirtiest = 0; ++ dev->gc_pages_in_use = 0; ++ dev->gc_not_done = 0; ++ if(dev->refresh_skip > 0) ++ dev->refresh_skip--; ++ } else{ ++ dev->gc_not_done++; ++ T(YAFFS_TRACE_GC, ++ (TSTR("GC none: finder %d skip %d threshold %d dirtiest %d using %d oldest %d%s" TENDSTR), ++ dev->gc_block_finder, dev->gc_not_done, ++ threshold, ++ dev->gc_dirtiest, dev->gc_pages_in_use, ++ dev->oldest_dirty_block, ++ background ? " bg" : "")); ++ } + +- return retval; ++ return selected; + } + +-/*--------------------- File read/write ------------------------ +- * Read and write have very similar structures. +- * In general the read/write has three parts to it +- * An incomplete chunk to start with (if the read/write is not chunk-aligned) +- * Some complete chunks +- * An incomplete chunk to end off with ++/* New garbage collector ++ * If we're very low on erased blocks then we do aggressive garbage collection ++ * otherwise we do "leasurely" garbage collection. ++ * Aggressive gc looks further (whole array) and will accept less dirty blocks. ++ * Passive gc only inspects smaller areas and will only accept more dirty blocks. + * +- * Curve-balls: the first chunk might also be the last chunk. ++ * The idea is to help clear out space in a more spread-out manner. ++ * Dunno if it really does anything useful. + */ +- +-int yaffs_ReadDataFromFile(yaffs_Object *in, __u8 *buffer, loff_t offset, +- int nBytes) ++static int yaffs_check_gc(yaffs_dev_t *dev, int background) + { ++ int aggressive = 0; ++ int gcOk = YAFFS_OK; ++ int maxTries = 0; ++ int minErased; ++ int erasedChunks; ++ int checkpointBlockAdjust; + +- int chunk; +- __u32 start; +- int nToCopy; +- int n = nBytes; +- int nDone = 0; +- yaffs_ChunkCache *cache; +- +- yaffs_Device *dev; +- +- dev = in->myDev; +- +- while (n > 0) { +- /* chunk = offset / dev->nDataBytesPerChunk + 1; */ +- /* start = offset % dev->nDataBytesPerChunk; */ +- yaffs_AddrToChunk(dev, offset, &chunk, &start); +- chunk++; +- +- /* OK now check for the curveball where the start and end are in +- * the same chunk. +- */ +- if ((start + n) < dev->nDataBytesPerChunk) +- nToCopy = n; +- else +- nToCopy = dev->nDataBytesPerChunk - start; +- +- cache = yaffs_FindChunkCache(in, chunk); +- +- /* If the chunk is already in the cache or it is less than a whole chunk +- * or we're using inband tags then use the cache (if there is caching) +- * else bypass the cache. +- */ +- if (cache || nToCopy != dev->nDataBytesPerChunk || dev->inbandTags) { +- if (dev->nShortOpCaches > 0) { +- +- /* If we can't find the data in the cache, then load it up. */ ++ if(dev->param.gc_control && ++ (dev->param.gc_control(dev) & 1) == 0) ++ return YAFFS_OK; + +- if (!cache) { +- cache = yaffs_GrabChunkCache(in->myDev); +- cache->object = in; +- cache->chunkId = chunk; +- cache->dirty = 0; +- cache->locked = 0; +- yaffs_ReadChunkDataFromObject(in, chunk, +- cache-> +- data); +- cache->nBytes = 0; +- } ++ if (dev->gc_disable) { ++ /* Bail out so we don't get recursive gc */ ++ return YAFFS_OK; ++ } + +- yaffs_UseChunkCache(dev, cache, 0); ++ /* This loop should pass the first time. ++ * We'll only see looping here if the collection does not increase space. ++ */ + +- cache->locked = 1; ++ do { ++ maxTries++; + ++ checkpointBlockAdjust = yaffs_calc_checkpt_blocks_required(dev); + +- memcpy(buffer, &cache->data[start], nToCopy); ++ minErased = dev->param.n_reserved_blocks + checkpointBlockAdjust + 1; ++ erasedChunks = dev->n_erased_blocks * dev->param.chunks_per_block; + +- cache->locked = 0; +- } else { +- /* Read into the local buffer then copy..*/ ++ /* If we need a block soon then do aggressive gc.*/ ++ if (dev->n_erased_blocks < minErased) ++ aggressive = 1; ++ else { ++ if(!background && erasedChunks > (dev->n_free_chunks / 4)) ++ break; + +- __u8 *localBuffer = +- yaffs_GetTempBuffer(dev, __LINE__); +- yaffs_ReadChunkDataFromObject(in, chunk, +- localBuffer); ++ if(dev->gc_skip > 20) ++ dev->gc_skip = 20; ++ if(erasedChunks < dev->n_free_chunks/2 || ++ dev->gc_skip < 1 || ++ background) ++ aggressive = 0; ++ else { ++ dev->gc_skip--; ++ break; ++ } ++ } + +- memcpy(buffer, &localBuffer[start], nToCopy); ++ dev->gc_skip = 5; + ++ /* If we don't already have a block being gc'd then see if we should start another */ + +- yaffs_ReleaseTempBuffer(dev, localBuffer, +- __LINE__); +- } ++ if (dev->gc_block < 1 && !aggressive) { ++ dev->gc_block = yaffs2_find_refresh_block(dev); ++ dev->gc_chunk = 0; ++ dev->n_clean_ups=0; ++ } ++ if (dev->gc_block < 1) { ++ dev->gc_block = yaffs_find_gc_block(dev, aggressive, background); ++ dev->gc_chunk = 0; ++ dev->n_clean_ups=0; ++ } + +- } else { ++ if (dev->gc_block > 0) { ++ dev->all_gcs++; ++ if (!aggressive) ++ dev->passive_gc_count++; + +- /* A full chunk. Read directly into the supplied buffer. */ +- yaffs_ReadChunkDataFromObject(in, chunk, buffer); ++ T(YAFFS_TRACE_GC, ++ (TSTR ++ ("yaffs: GC erasedBlocks %d aggressive %d" TENDSTR), ++ dev->n_erased_blocks, aggressive)); + ++ gcOk = yaffs_gc_block(dev, dev->gc_block, aggressive); + } + +- n -= nToCopy; +- offset += nToCopy; +- buffer += nToCopy; +- nDone += nToCopy; +- +- } ++ if (dev->n_erased_blocks < (dev->param.n_reserved_blocks) && dev->gc_block > 0) { ++ T(YAFFS_TRACE_GC, ++ (TSTR ++ ("yaffs: GC !!!no reclaim!!! erasedBlocks %d after try %d block %d" ++ TENDSTR), dev->n_erased_blocks, maxTries, dev->gc_block)); ++ } ++ } while ((dev->n_erased_blocks < dev->param.n_reserved_blocks) && ++ (dev->gc_block > 0) && ++ (maxTries < 2)); + +- return nDone; ++ return aggressive ? gcOk : YAFFS_OK; + } + +-int yaffs_WriteDataToFile(yaffs_Object *in, const __u8 *buffer, loff_t offset, +- int nBytes, int writeThrough) ++/* ++ * yaffs_bg_gc() ++ * Garbage collects. Intended to be called from a background thread. ++ * Returns non-zero if at least half the free chunks are erased. ++ */ ++int yaffs_bg_gc(yaffs_dev_t *dev, unsigned urgency) + { ++ int erasedChunks = dev->n_erased_blocks * dev->param.chunks_per_block; + +- int chunk; +- __u32 start; +- int nToCopy; +- int n = nBytes; +- int nDone = 0; +- int nToWriteBack; +- int startOfWrite = offset; +- int chunkWritten = 0; +- __u32 nBytesRead; +- __u32 chunkStart; ++ T(YAFFS_TRACE_BACKGROUND, (TSTR("Background gc %u" TENDSTR),urgency)); + +- yaffs_Device *dev; ++ yaffs_check_gc(dev, 1); ++ return erasedChunks > dev->n_free_chunks/2; ++} + +- dev = in->myDev; ++/*------------------------- TAGS --------------------------------*/ + +- while (n > 0 && chunkWritten >= 0) { +- /* chunk = offset / dev->nDataBytesPerChunk + 1; */ +- /* start = offset % dev->nDataBytesPerChunk; */ +- yaffs_AddrToChunk(dev, offset, &chunk, &start); ++static int yaffs_tags_match(const yaffs_ext_tags *tags, int obj_id, ++ int chunkInObject) ++{ ++ return (tags->chunk_id == chunkInObject && ++ tags->obj_id == obj_id && !tags->is_deleted) ? 1 : 0; + +- if (chunk * dev->nDataBytesPerChunk + start != offset || +- start >= dev->nDataBytesPerChunk) { +- T(YAFFS_TRACE_ERROR, ( +- TSTR("AddrToChunk of offset %d gives chunk %d start %d" +- TENDSTR), +- (int)offset, chunk, start)); +- } +- chunk++; ++} + +- /* OK now check for the curveball where the start and end are in +- * the same chunk. +- */ + +- if ((start + n) < dev->nDataBytesPerChunk) { +- nToCopy = n; ++/*-------------------- Data file manipulation -----------------*/ + +- /* Now folks, to calculate how many bytes to write back.... +- * If we're overwriting and not writing to then end of file then +- * we need to write back as much as was there before. +- */ ++static int yaffs_find_chunk_in_file(yaffs_obj_t *in, int inode_chunk, ++ yaffs_ext_tags *tags) ++{ ++ /*Get the Tnode, then get the level 0 offset chunk offset */ ++ yaffs_tnode_t *tn; ++ int theChunk = -1; ++ yaffs_ext_tags localTags; ++ int retVal = -1; + +- chunkStart = ((chunk - 1) * dev->nDataBytesPerChunk); ++ yaffs_dev_t *dev = in->my_dev; + +- if (chunkStart > in->variant.fileVariant.fileSize) +- nBytesRead = 0; /* Past end of file */ +- else +- nBytesRead = in->variant.fileVariant.fileSize - chunkStart; ++ if (!tags) { ++ /* Passed a NULL, so use our own tags space */ ++ tags = &localTags; ++ } + +- if (nBytesRead > dev->nDataBytesPerChunk) +- nBytesRead = dev->nDataBytesPerChunk; ++ tn = yaffs_find_tnode_0(dev, &in->variant.file_variant, inode_chunk); + +- nToWriteBack = +- (nBytesRead > +- (start + n)) ? nBytesRead : (start + n); ++ if (tn) { ++ theChunk = yaffs_get_group_base(dev, tn, inode_chunk); + +- if (nToWriteBack < 0 || nToWriteBack > dev->nDataBytesPerChunk) +- YBUG(); ++ retVal = ++ yaffs_find_chunk_in_group(dev, theChunk, tags, in->obj_id, ++ inode_chunk); ++ } ++ return retVal; ++} + +- } else { +- nToCopy = dev->nDataBytesPerChunk - start; +- nToWriteBack = dev->nDataBytesPerChunk; +- } ++static int yaffs_find_del_file_chunk(yaffs_obj_t *in, int inode_chunk, ++ yaffs_ext_tags *tags) ++{ ++ /* Get the Tnode, then get the level 0 offset chunk offset */ ++ yaffs_tnode_t *tn; ++ int theChunk = -1; ++ yaffs_ext_tags localTags; + +- if (nToCopy != dev->nDataBytesPerChunk || dev->inbandTags) { +- /* An incomplete start or end chunk (or maybe both start and end chunk), +- * or we're using inband tags, so we want to use the cache buffers. +- */ +- if (dev->nShortOpCaches > 0) { +- yaffs_ChunkCache *cache; +- /* If we can't find the data in the cache, then load the cache */ +- cache = yaffs_FindChunkCache(in, chunk); ++ yaffs_dev_t *dev = in->my_dev; ++ int retVal = -1; + +- if (!cache +- && yaffs_CheckSpaceForAllocation(in-> +- myDev)) { +- cache = yaffs_GrabChunkCache(in->myDev); +- cache->object = in; +- cache->chunkId = chunk; +- cache->dirty = 0; +- cache->locked = 0; +- yaffs_ReadChunkDataFromObject(in, chunk, +- cache-> +- data); +- } else if (cache && +- !cache->dirty && +- !yaffs_CheckSpaceForAllocation(in->myDev)) { +- /* Drop the cache if it was a read cache item and +- * no space check has been made for it. +- */ +- cache = NULL; +- } ++ if (!tags) { ++ /* Passed a NULL, so use our own tags space */ ++ tags = &localTags; ++ } + +- if (cache) { +- yaffs_UseChunkCache(dev, cache, 1); +- cache->locked = 1; ++ tn = yaffs_find_tnode_0(dev, &in->variant.file_variant, inode_chunk); + ++ if (tn) { + +- memcpy(&cache->data[start], buffer, +- nToCopy); ++ theChunk = yaffs_get_group_base(dev, tn, inode_chunk); + ++ retVal = ++ yaffs_find_chunk_in_group(dev, theChunk, tags, in->obj_id, ++ inode_chunk); + +- cache->locked = 0; +- cache->nBytes = nToWriteBack; ++ /* Delete the entry in the filestructure (if found) */ ++ if (retVal != -1) ++ yaffs_load_tnode_0(dev, tn, inode_chunk, 0); ++ } + +- if (writeThrough) { +- chunkWritten = +- yaffs_WriteChunkDataToObject +- (cache->object, +- cache->chunkId, +- cache->data, cache->nBytes, +- 1); +- cache->dirty = 0; +- } ++ return retVal; ++} + +- } else { +- chunkWritten = -1; /* fail the write */ +- } +- } else { +- /* An incomplete start or end chunk (or maybe both start and end chunk) +- * Read into the local buffer then copy, then copy over and write back. +- */ + +- __u8 *localBuffer = +- yaffs_GetTempBuffer(dev, __LINE__); ++int yaffs_put_chunk_in_file(yaffs_obj_t *in, int inode_chunk, ++ int nand_chunk, int in_scan) ++{ ++ /* NB in_scan is zero unless scanning. ++ * For forward scanning, in_scan is > 0; ++ * for backward scanning in_scan is < 0 ++ * ++ * nand_chunk = 0 is a dummy insert to make sure the tnodes are there. ++ */ + +- yaffs_ReadChunkDataFromObject(in, chunk, +- localBuffer); ++ yaffs_tnode_t *tn; ++ yaffs_dev_t *dev = in->my_dev; ++ int existingChunk; ++ yaffs_ext_tags existingTags; ++ yaffs_ext_tags newTags; ++ unsigned existingSerial, newSerial; + ++ if (in->variant_type != YAFFS_OBJECT_TYPE_FILE) { ++ /* Just ignore an attempt at putting a chunk into a non-file during scanning ++ * If it is not during Scanning then something went wrong! ++ */ ++ if (!in_scan) { ++ T(YAFFS_TRACE_ERROR, ++ (TSTR ++ ("yaffs tragedy:attempt to put data chunk into a non-file" ++ TENDSTR))); ++ YBUG(); ++ } + ++ yaffs_chunk_del(dev, nand_chunk, 1, __LINE__); ++ return YAFFS_OK; ++ } + +- memcpy(&localBuffer[start], buffer, nToCopy); ++ tn = yaffs_add_find_tnode_0(dev, ++ &in->variant.file_variant, ++ inode_chunk, ++ NULL); ++ if (!tn) ++ return YAFFS_FAIL; ++ ++ if(!nand_chunk) ++ /* Dummy insert, bail now */ ++ return YAFFS_OK; + +- chunkWritten = +- yaffs_WriteChunkDataToObject(in, chunk, +- localBuffer, +- nToWriteBack, +- 0); ++ existingChunk = yaffs_get_group_base(dev, tn, inode_chunk); + +- yaffs_ReleaseTempBuffer(dev, localBuffer, +- __LINE__); ++ if (in_scan != 0) { ++ /* If we're scanning then we need to test for duplicates ++ * NB This does not need to be efficient since it should only ever ++ * happen when the power fails during a write, then only one ++ * chunk should ever be affected. ++ * ++ * Correction for YAFFS2: This could happen quite a lot and we need to think about efficiency! TODO ++ * Update: For backward scanning we don't need to re-read tags so this is quite cheap. ++ */ ++ ++ if (existingChunk > 0) { ++ /* NB Right now existing chunk will not be real chunk_id if the chunk group size > 1 ++ * thus we have to do a FindChunkInFile to get the real chunk id. ++ * ++ * We have a duplicate now we need to decide which one to use: ++ * ++ * Backwards scanning YAFFS2: The old one is what we use, dump the new one. ++ * Forward scanning YAFFS2: The new one is what we use, dump the old one. ++ * YAFFS1: Get both sets of tags and compare serial numbers. ++ */ ++ ++ if (in_scan > 0) { ++ /* Only do this for forward scanning */ ++ yaffs_rd_chunk_tags_nand(dev, ++ nand_chunk, ++ NULL, &newTags); + ++ /* Do a proper find */ ++ existingChunk = ++ yaffs_find_chunk_in_file(in, inode_chunk, ++ &existingTags); + } + +- } else { +- /* A full chunk. Write directly from the supplied buffer. */ ++ if (existingChunk <= 0) { ++ /*Hoosterman - how did this happen? */ + ++ T(YAFFS_TRACE_ERROR, ++ (TSTR ++ ("yaffs tragedy: existing chunk < 0 in scan" ++ TENDSTR))); + ++ } + +- chunkWritten = +- yaffs_WriteChunkDataToObject(in, chunk, buffer, +- dev->nDataBytesPerChunk, +- 0); ++ /* NB The deleted flags should be false, otherwise the chunks will ++ * not be loaded during a scan ++ */ + +- /* Since we've overwritten the cached data, we better invalidate it. */ +- yaffs_InvalidateChunkCache(in, chunk); +- } ++ if (in_scan > 0) { ++ newSerial = newTags.serial_number; ++ existingSerial = existingTags.serial_number; ++ } + +- if (chunkWritten >= 0) { +- n -= nToCopy; +- offset += nToCopy; +- buffer += nToCopy; +- nDone += nToCopy; ++ if ((in_scan > 0) && ++ (existingChunk <= 0 || ++ ((existingSerial + 1) & 3) == newSerial)) { ++ /* Forward scanning. ++ * Use new ++ * Delete the old one and drop through to update the tnode ++ */ ++ yaffs_chunk_del(dev, existingChunk, 1, ++ __LINE__); ++ } else { ++ /* Backward scanning or we want to use the existing one ++ * Use existing. ++ * Delete the new one and return early so that the tnode isn't changed ++ */ ++ yaffs_chunk_del(dev, nand_chunk, 1, ++ __LINE__); ++ return YAFFS_OK; ++ } + } + + } + +- /* Update file object */ +- +- if ((startOfWrite + nDone) > in->variant.fileVariant.fileSize) +- in->variant.fileVariant.fileSize = (startOfWrite + nDone); ++ if (existingChunk == 0) ++ in->n_data_chunks++; + +- in->dirty = 1; ++ yaffs_load_tnode_0(dev, tn, inode_chunk, nand_chunk); + +- return nDone; ++ return YAFFS_OK; + } + ++static int yaffs_rd_data_obj(yaffs_obj_t *in, int inode_chunk, ++ __u8 *buffer) ++{ ++ int nand_chunk = yaffs_find_chunk_in_file(in, inode_chunk, NULL); + +-/* ---------------------- File resizing stuff ------------------ */ ++ if (nand_chunk >= 0) ++ return yaffs_rd_chunk_tags_nand(in->my_dev, nand_chunk, ++ buffer, NULL); ++ else { ++ T(YAFFS_TRACE_NANDACCESS, ++ (TSTR("Chunk %d not found zero instead" TENDSTR), ++ nand_chunk)); ++ /* get sane (zero) data if you read a hole */ ++ memset(buffer, 0, in->my_dev->data_bytes_per_chunk); ++ return 0; ++ } ++ ++} + +-static void yaffs_PruneResizedChunks(yaffs_Object *in, int newSize) ++void yaffs_chunk_del(yaffs_dev_t *dev, int chunk_id, int mark_flash, int lyn) + { ++ int block; ++ int page; ++ yaffs_ext_tags tags; ++ yaffs_block_info_t *bi; + +- yaffs_Device *dev = in->myDev; +- int oldFileSize = in->variant.fileVariant.fileSize; ++ if (chunk_id <= 0) ++ return; + +- int lastDel = 1 + (oldFileSize - 1) / dev->nDataBytesPerChunk; ++ dev->n_deletions++; ++ block = chunk_id / dev->param.chunks_per_block; ++ page = chunk_id % dev->param.chunks_per_block; + +- int startDel = 1 + (newSize + dev->nDataBytesPerChunk - 1) / +- dev->nDataBytesPerChunk; +- int i; +- int chunkId; + +- /* Delete backwards so that we don't end up with holes if +- * power is lost part-way through the operation. ++ if (!yaffs_check_chunk_bit(dev, block, page)) ++ T(YAFFS_TRACE_VERIFY, ++ (TSTR("Deleting invalid chunk %d"TENDSTR), ++ chunk_id)); ++ ++ bi = yaffs_get_block_info(dev, block); ++ ++ yaffs2_update_oldest_dirty_seq(dev, block, bi); ++ ++ T(YAFFS_TRACE_DELETION, ++ (TSTR("line %d delete of chunk %d" TENDSTR), lyn, chunk_id)); ++ ++ if (!dev->param.is_yaffs2 && mark_flash && ++ bi->block_state != YAFFS_BLOCK_STATE_COLLECTING) { ++ ++ yaffs_init_tags(&tags); ++ ++ tags.is_deleted = 1; ++ ++ yaffs_wr_chunk_tags_nand(dev, chunk_id, NULL, &tags); ++ yaffs_handle_chunk_update(dev, chunk_id, &tags); ++ } else { ++ dev->n_unmarked_deletions++; ++ } ++ ++ /* Pull out of the management area. ++ * If the whole block became dirty, this will kick off an erasure. + */ +- for (i = lastDel; i >= startDel; i--) { +- /* NB this could be optimised somewhat, +- * eg. could retrieve the tags and write them without +- * using yaffs_DeleteChunk +- */ ++ if (bi->block_state == YAFFS_BLOCK_STATE_ALLOCATING || ++ bi->block_state == YAFFS_BLOCK_STATE_FULL || ++ bi->block_state == YAFFS_BLOCK_STATE_NEEDS_SCANNING || ++ bi->block_state == YAFFS_BLOCK_STATE_COLLECTING) { ++ dev->n_free_chunks++; + +- chunkId = yaffs_FindAndDeleteChunkInFile(in, i, NULL); +- if (chunkId > 0) { +- if (chunkId < +- (dev->internalStartBlock * dev->nChunksPerBlock) +- || chunkId >= +- ((dev->internalEndBlock + +- 1) * dev->nChunksPerBlock)) { +- T(YAFFS_TRACE_ALWAYS, +- (TSTR("Found daft chunkId %d for %d" TENDSTR), +- chunkId, i)); +- } else { +- in->nDataChunks--; +- yaffs_DeleteChunk(dev, chunkId, 1, __LINE__); +- } ++ yaffs_clear_chunk_bit(dev, block, page); ++ ++ bi->pages_in_use--; ++ ++ if (bi->pages_in_use == 0 && ++ !bi->has_shrink_hdr && ++ bi->block_state != YAFFS_BLOCK_STATE_ALLOCATING && ++ bi->block_state != YAFFS_BLOCK_STATE_NEEDS_SCANNING) { ++ yaffs_block_became_dirty(dev, block); + } ++ + } + + } + +-int yaffs_ResizeFile(yaffs_Object *in, loff_t newSize) ++static int yaffs_wr_data_obj(yaffs_obj_t *in, int inode_chunk, ++ const __u8 *buffer, int n_bytes, ++ int useReserve) + { ++ /* Find old chunk Need to do this to get serial number ++ * Write new one and patch into tree. ++ * Invalidate old tags. ++ */ + +- int oldFileSize = in->variant.fileVariant.fileSize; +- __u32 newSizeOfPartialChunk; +- int newFullChunks; ++ int prevChunkId; ++ yaffs_ext_tags prevTags; + +- yaffs_Device *dev = in->myDev; ++ int newChunkId; ++ yaffs_ext_tags newTags; + +- yaffs_AddrToChunk(dev, newSize, &newFullChunks, &newSizeOfPartialChunk); ++ yaffs_dev_t *dev = in->my_dev; + +- yaffs_FlushFilesChunkCache(in); +- yaffs_InvalidateWholeChunkCache(in); ++ yaffs_check_gc(dev,0); + +- yaffs_CheckGarbageCollection(dev); ++ /* Get the previous chunk at this location in the file if it exists. ++ * If it does not exist then put a zero into the tree. This creates ++ * the tnode now, rather than later when it is harder to clean up. ++ */ ++ prevChunkId = yaffs_find_chunk_in_file(in, inode_chunk, &prevTags); ++ if(prevChunkId < 1 && ++ !yaffs_put_chunk_in_file(in, inode_chunk, 0, 0)) ++ return 0; + +- if (in->variantType != YAFFS_OBJECT_TYPE_FILE) +- return YAFFS_FAIL; ++ /* Set up new tags */ ++ yaffs_init_tags(&newTags); + +- if (newSize == oldFileSize) +- return YAFFS_OK; ++ newTags.chunk_id = inode_chunk; ++ newTags.obj_id = in->obj_id; ++ newTags.serial_number = ++ (prevChunkId > 0) ? prevTags.serial_number + 1 : 1; ++ newTags.n_bytes = n_bytes; + +- if (newSize < oldFileSize) { ++ if (n_bytes < 1 || n_bytes > dev->param.total_bytes_per_chunk) { ++ T(YAFFS_TRACE_ERROR, ++ (TSTR("Writing %d bytes to chunk!!!!!!!!!" TENDSTR), n_bytes)); ++ YBUG(); ++ } ++ ++ ++ newChunkId = ++ yaffs_write_new_chunk(dev, buffer, &newTags, ++ useReserve); + +- yaffs_PruneResizedChunks(in, newSize); ++ if (newChunkId > 0) { ++ yaffs_put_chunk_in_file(in, inode_chunk, newChunkId, 0); + +- if (newSizeOfPartialChunk != 0) { +- int lastChunk = 1 + newFullChunks; ++ if (prevChunkId > 0) ++ yaffs_chunk_del(dev, prevChunkId, 1, __LINE__); + +- __u8 *localBuffer = yaffs_GetTempBuffer(dev, __LINE__); ++ yaffs_verify_file_sane(in); ++ } ++ return newChunkId; + +- /* Got to read and rewrite the last chunk with its new size and zero pad */ +- yaffs_ReadChunkDataFromObject(in, lastChunk, +- localBuffer); ++} + +- memset(localBuffer + newSizeOfPartialChunk, 0, +- dev->nDataBytesPerChunk - newSizeOfPartialChunk); ++/* UpdateObjectHeader updates the header on NAND for an object. ++ * If name is not NULL, then that new name is used. ++ */ ++int yaffs_update_oh(yaffs_obj_t *in, const YCHAR *name, int force, ++ int is_shrink, int shadows, yaffs_xattr_mod *xmod) ++{ + +- yaffs_WriteChunkDataToObject(in, lastChunk, localBuffer, +- newSizeOfPartialChunk, 1); ++ yaffs_block_info_t *bi; + +- yaffs_ReleaseTempBuffer(dev, localBuffer, __LINE__); +- } ++ yaffs_dev_t *dev = in->my_dev; + +- in->variant.fileVariant.fileSize = newSize; ++ int prevChunkId; ++ int retVal = 0; ++ int result = 0; + +- yaffs_PruneFileStructure(dev, &in->variant.fileVariant); +- } else { +- /* newsSize > oldFileSize */ +- in->variant.fileVariant.fileSize = newSize; +- } ++ int newChunkId; ++ yaffs_ext_tags newTags; ++ yaffs_ext_tags oldTags; ++ const YCHAR *alias = NULL; + ++ __u8 *buffer = NULL; ++ YCHAR old_name[YAFFS_MAX_NAME_LENGTH + 1]; + +- /* Write a new object header. +- * show we've shrunk the file, if need be +- * Do this only if the file is not in the deleted directories. +- */ +- if (in->parent && +- in->parent->objectId != YAFFS_OBJECTID_UNLINKED && +- in->parent->objectId != YAFFS_OBJECTID_DELETED) +- yaffs_UpdateObjectHeader(in, NULL, 0, +- (newSize < oldFileSize) ? 1 : 0, 0); ++ yaffs_obj_header *oh = NULL; + +- return YAFFS_OK; +-} ++ yaffs_strcpy(old_name, _Y("silly old name")); + +-loff_t yaffs_GetFileSize(yaffs_Object *obj) +-{ +- obj = yaffs_GetEquivalentObject(obj); + +- switch (obj->variantType) { +- case YAFFS_OBJECT_TYPE_FILE: +- return obj->variant.fileVariant.fileSize; +- case YAFFS_OBJECT_TYPE_SYMLINK: +- return yaffs_strlen(obj->variant.symLinkVariant.alias); +- default: +- return 0; +- } +-} ++ if (!in->fake || ++ in == dev->root_dir || /* The root_dir should also be saved */ ++ force || xmod) { + ++ yaffs_check_gc(dev,0); ++ yaffs_check_obj_details_loaded(in); + ++ buffer = yaffs_get_temp_buffer(in->my_dev, __LINE__); ++ oh = (yaffs_obj_header *) buffer; ++ ++ prevChunkId = in->hdr_chunk; ++ ++ if (prevChunkId > 0) { ++ result = yaffs_rd_chunk_tags_nand(dev, prevChunkId, ++ buffer, &oldTags); ++ ++ yaffs_verify_oh(in, oh, &oldTags, 0); ++ ++ memcpy(old_name, oh->name, sizeof(oh->name)); ++ memset(buffer, 0xFF, sizeof(yaffs_obj_header)); ++ } else ++ memset(buffer, 0xFF, dev->data_bytes_per_chunk); ++ ++ oh->type = in->variant_type; ++ oh->yst_mode = in->yst_mode; ++ oh->shadows_obj = oh->inband_shadowed_obj_id = shadows; + +-int yaffs_FlushFile(yaffs_Object *in, int updateTime) +-{ +- int retVal; +- if (in->dirty) { +- yaffs_FlushFilesChunkCache(in); +- if (updateTime) { + #ifdef CONFIG_YAFFS_WINCE +- yfsd_WinFileTimeNow(in->win_mtime); ++ oh->win_atime[0] = in->win_atime[0]; ++ oh->win_ctime[0] = in->win_ctime[0]; ++ oh->win_mtime[0] = in->win_mtime[0]; ++ oh->win_atime[1] = in->win_atime[1]; ++ oh->win_ctime[1] = in->win_ctime[1]; ++ oh->win_mtime[1] = in->win_mtime[1]; + #else ++ oh->yst_uid = in->yst_uid; ++ oh->yst_gid = in->yst_gid; ++ oh->yst_atime = in->yst_atime; ++ oh->yst_mtime = in->yst_mtime; ++ oh->yst_ctime = in->yst_ctime; ++ oh->yst_rdev = in->yst_rdev; ++#endif ++ if (in->parent) ++ oh->parent_obj_id = in->parent->obj_id; ++ else ++ oh->parent_obj_id = 0; ++ ++ if (name && *name) { ++ memset(oh->name, 0, sizeof(oh->name)); ++ yaffs_load_oh_from_name(dev,oh->name,name); ++ } else if (prevChunkId > 0) ++ memcpy(oh->name, old_name, sizeof(oh->name)); ++ else ++ memset(oh->name, 0, sizeof(oh->name)); + +- in->yst_mtime = Y_CURRENT_TIME; ++ oh->is_shrink = is_shrink; + +-#endif ++ switch (in->variant_type) { ++ case YAFFS_OBJECT_TYPE_UNKNOWN: ++ /* Should not happen */ ++ break; ++ case YAFFS_OBJECT_TYPE_FILE: ++ oh->file_size = ++ (oh->parent_obj_id == YAFFS_OBJECTID_DELETED ++ || oh->parent_obj_id == ++ YAFFS_OBJECTID_UNLINKED) ? 0 : in->variant. ++ file_variant.file_size; ++ break; ++ case YAFFS_OBJECT_TYPE_HARDLINK: ++ oh->equiv_id = ++ in->variant.hardlink_variant.equiv_id; ++ break; ++ case YAFFS_OBJECT_TYPE_SPECIAL: ++ /* Do nothing */ ++ break; ++ case YAFFS_OBJECT_TYPE_DIRECTORY: ++ /* Do nothing */ ++ break; ++ case YAFFS_OBJECT_TYPE_SYMLINK: ++ alias = in->variant.symlink_variant.alias; ++ if(!alias) ++ alias = _Y("no alias"); ++ yaffs_strncpy(oh->alias, ++ alias, ++ YAFFS_MAX_ALIAS_LENGTH); ++ oh->alias[YAFFS_MAX_ALIAS_LENGTH] = 0; ++ break; + } + +- retVal = (yaffs_UpdateObjectHeader(in, NULL, 0, 0, 0) >= +- 0) ? YAFFS_OK : YAFFS_FAIL; +- } else { +- retVal = YAFFS_OK; +- } ++ /* process any xattrib modifications */ ++ if(xmod) ++ yaffs_apply_xattrib_mod(in, (char *)buffer, xmod); + +- return retVal; + +-} ++ /* Tags */ ++ yaffs_init_tags(&newTags); ++ in->serial++; ++ newTags.chunk_id = 0; ++ newTags.obj_id = in->obj_id; ++ newTags.serial_number = in->serial; + +-static int yaffs_DoGenericObjectDeletion(yaffs_Object *in) +-{ ++ /* Add extra info for file header */ + +- /* First off, invalidate the file's data in the cache, without flushing. */ +- yaffs_InvalidateWholeChunkCache(in); ++ newTags.extra_available = 1; ++ newTags.extra_parent_id = oh->parent_obj_id; ++ newTags.extra_length = oh->file_size; ++ newTags.extra_is_shrink = oh->is_shrink; ++ newTags.extra_equiv_id = oh->equiv_id; ++ newTags.extra_shadows = (oh->shadows_obj > 0) ? 1 : 0; ++ newTags.extra_obj_type = in->variant_type; + +- if (in->myDev->isYaffs2 && (in->parent != in->myDev->deletedDir)) { +- /* Move to the unlinked directory so we have a record that it was deleted. */ +- yaffs_ChangeObjectName(in, in->myDev->deletedDir, _Y("deleted"), 0, 0); ++ yaffs_verify_oh(in, oh, &newTags, 1); + +- } ++ /* Create new chunk in NAND */ ++ newChunkId = ++ yaffs_write_new_chunk(dev, buffer, &newTags, ++ (prevChunkId > 0) ? 1 : 0); + +- yaffs_RemoveObjectFromDirectory(in); +- yaffs_DeleteChunk(in->myDev, in->hdrChunk, 1, __LINE__); +- in->hdrChunk = 0; ++ if (newChunkId >= 0) { + +- yaffs_FreeObject(in); +- return YAFFS_OK; ++ in->hdr_chunk = newChunkId; + +-} ++ if (prevChunkId > 0) { ++ yaffs_chunk_del(dev, prevChunkId, 1, ++ __LINE__); ++ } + +-/* yaffs_DeleteFile deletes the whole file data +- * and the inode associated with the file. +- * It does not delete the links associated with the file. +- */ +-static int yaffs_UnlinkFileIfNeeded(yaffs_Object *in) +-{ ++ if (!yaffs_obj_cache_dirty(in)) ++ in->dirty = 0; + +- int retVal; +- int immediateDeletion = 0; ++ /* If this was a shrink, then mark the block that the chunk lives on */ ++ if (is_shrink) { ++ bi = yaffs_get_block_info(in->my_dev, ++ newChunkId / in->my_dev->param.chunks_per_block); ++ bi->has_shrink_hdr = 1; ++ } + +-#ifdef __KERNEL__ +- if (!in->myInode) +- immediateDeletion = 1; +-#else +- if (in->inUse <= 0) +- immediateDeletion = 1; +-#endif ++ } ++ ++ retVal = newChunkId; + +- if (immediateDeletion) { +- retVal = +- yaffs_ChangeObjectName(in, in->myDev->deletedDir, +- _Y("deleted"), 0, 0); +- T(YAFFS_TRACE_TRACING, +- (TSTR("yaffs: immediate deletion of file %d" TENDSTR), +- in->objectId)); +- in->deleted = 1; +- in->myDev->nDeletedFiles++; +- if (1 || in->myDev->isYaffs2) +- yaffs_ResizeFile(in, 0); +- yaffs_SoftDeleteFile(in); +- } else { +- retVal = +- yaffs_ChangeObjectName(in, in->myDev->unlinkedDir, +- _Y("unlinked"), 0, 0); + } + ++ if (buffer) ++ yaffs_release_temp_buffer(dev, buffer, __LINE__); + + return retVal; + } + +-int yaffs_DeleteFile(yaffs_Object *in) +-{ +- int retVal = YAFFS_OK; +- int deleted = in->deleted; +- +- yaffs_ResizeFile(in, 0); +- +- if (in->nDataChunks > 0) { +- /* Use soft deletion if there is data in the file. +- * That won't be the case if it has been resized to zero. +- */ +- if (!in->unlinked) +- retVal = yaffs_UnlinkFileIfNeeded(in); +- +- if (retVal == YAFFS_OK && in->unlinked && !in->deleted) { +- in->deleted = 1; +- deleted = 1; +- in->myDev->nDeletedFiles++; +- yaffs_SoftDeleteFile(in); +- } +- return deleted ? YAFFS_OK : YAFFS_FAIL; +- } else { +- /* The file has no data chunks so we toss it immediately */ +- yaffs_FreeTnode(in->myDev, in->variant.fileVariant.top); +- in->variant.fileVariant.top = NULL; +- yaffs_DoGenericObjectDeletion(in); +- +- return YAFFS_OK; +- } +-} ++/*------------------------ Short Operations Cache ---------------------------------------- ++ * In many situations where there is no high level buffering (eg WinCE) a lot of ++ * reads might be short sequential reads, and a lot of writes may be short ++ * sequential writes. eg. scanning/writing a jpeg file. ++ * In these cases, a short read/write cache can provide a huge perfomance benefit ++ * with dumb-as-a-rock code. ++ * In Linux, the page cache provides read buffering aand the short op cache provides write ++ * buffering. ++ * ++ * There are a limited number (~10) of cache chunks per device so that we don't ++ * need a very intelligent search. ++ */ + +-static int yaffs_DeleteDirectory(yaffs_Object *in) ++static int yaffs_obj_cache_dirty(yaffs_obj_t *obj) + { +- /* First check that the directory is empty. */ +- if (ylist_empty(&in->variant.directoryVariant.children)) +- return yaffs_DoGenericObjectDeletion(in); ++ yaffs_dev_t *dev = obj->my_dev; ++ int i; ++ yaffs_cache_t *cache; ++ int nCaches = obj->my_dev->param.n_caches; + +- return YAFFS_FAIL; ++ for (i = 0; i < nCaches; i++) { ++ cache = &dev->cache[i]; ++ if (cache->object == obj && ++ cache->dirty) ++ return 1; ++ } + ++ return 0; + } + +-static int yaffs_DeleteSymLink(yaffs_Object *in) +-{ +- YFREE(in->variant.symLinkVariant.alias); +- +- return yaffs_DoGenericObjectDeletion(in); +-} + +-static int yaffs_DeleteHardLink(yaffs_Object *in) ++static void yaffs_flush_file_cache(yaffs_obj_t *obj) + { +- /* remove this hardlink from the list assocaited with the equivalent +- * object +- */ +- ylist_del_init(&in->hardLinks); +- return yaffs_DoGenericObjectDeletion(in); +-} ++ yaffs_dev_t *dev = obj->my_dev; ++ int lowest = -99; /* Stop compiler whining. */ ++ int i; ++ yaffs_cache_t *cache; ++ int chunkWritten = 0; ++ int nCaches = obj->my_dev->param.n_caches; + +-int yaffs_DeleteObject(yaffs_Object *obj) +-{ +-int retVal = -1; +- switch (obj->variantType) { +- case YAFFS_OBJECT_TYPE_FILE: +- retVal = yaffs_DeleteFile(obj); +- break; +- case YAFFS_OBJECT_TYPE_DIRECTORY: +- return yaffs_DeleteDirectory(obj); +- break; +- case YAFFS_OBJECT_TYPE_SYMLINK: +- retVal = yaffs_DeleteSymLink(obj); +- break; +- case YAFFS_OBJECT_TYPE_HARDLINK: +- retVal = yaffs_DeleteHardLink(obj); +- break; +- case YAFFS_OBJECT_TYPE_SPECIAL: +- retVal = yaffs_DoGenericObjectDeletion(obj); +- break; +- case YAFFS_OBJECT_TYPE_UNKNOWN: +- retVal = 0; +- break; /* should not happen. */ +- } ++ if (nCaches > 0) { ++ do { ++ cache = NULL; + +- return retVal; +-} ++ /* Find the dirty cache for this object with the lowest chunk id. */ ++ for (i = 0; i < nCaches; i++) { ++ if (dev->cache[i].object == obj && ++ dev->cache[i].dirty) { ++ if (!cache ++ || dev->cache[i].chunk_id < ++ lowest) { ++ cache = &dev->cache[i]; ++ lowest = cache->chunk_id; ++ } ++ } ++ } + +-static int yaffs_UnlinkWorker(yaffs_Object *obj) +-{ ++ if (cache && !cache->locked) { ++ /* Write it out and free it up */ + +- int immediateDeletion = 0; ++ chunkWritten = ++ yaffs_wr_data_obj(cache->object, ++ cache->chunk_id, ++ cache->data, ++ cache->n_bytes, ++ 1); ++ cache->dirty = 0; ++ cache->object = NULL; ++ } + +-#ifdef __KERNEL__ +- if (!obj->myInode) +- immediateDeletion = 1; +-#else +- if (obj->inUse <= 0) +- immediateDeletion = 1; +-#endif ++ } while (cache && chunkWritten > 0); + +- if (obj->variantType == YAFFS_OBJECT_TYPE_HARDLINK) { +- return yaffs_DeleteHardLink(obj); +- } else if (!ylist_empty(&obj->hardLinks)) { +- /* Curve ball: We're unlinking an object that has a hardlink. +- * +- * This problem arises because we are not strictly following +- * The Linux link/inode model. +- * +- * We can't really delete the object. +- * Instead, we do the following: +- * - Select a hardlink. +- * - Unhook it from the hard links +- * - Unhook it from its parent directory (so that the rename can work) +- * - Rename the object to the hardlink's name. +- * - Delete the hardlink +- */ ++ if (cache) { ++ /* Hoosterman, disk full while writing cache out. */ ++ T(YAFFS_TRACE_ERROR, ++ (TSTR("yaffs tragedy: no space during cache write" TENDSTR))); + +- yaffs_Object *hl; +- int retVal; +- YCHAR name[YAFFS_MAX_NAME_LENGTH + 1]; ++ } ++ } + +- hl = ylist_entry(obj->hardLinks.next, yaffs_Object, hardLinks); ++} + +- ylist_del_init(&hl->hardLinks); +- ylist_del_init(&hl->siblings); ++/*yaffs_flush_whole_cache(dev) ++ * ++ * ++ */ + +- yaffs_GetObjectName(hl, name, YAFFS_MAX_NAME_LENGTH + 1); ++void yaffs_flush_whole_cache(yaffs_dev_t *dev) ++{ ++ yaffs_obj_t *obj; ++ int nCaches = dev->param.n_caches; ++ int i; + +- retVal = yaffs_ChangeObjectName(obj, hl->parent, name, 0, 0); ++ /* Find a dirty object in the cache and flush it... ++ * until there are no further dirty objects. ++ */ ++ do { ++ obj = NULL; ++ for (i = 0; i < nCaches && !obj; i++) { ++ if (dev->cache[i].object && ++ dev->cache[i].dirty) ++ obj = dev->cache[i].object; + +- if (retVal == YAFFS_OK) +- retVal = yaffs_DoGenericObjectDeletion(hl); ++ } ++ if (obj) ++ yaffs_flush_file_cache(obj); + +- return retVal; ++ } while (obj); + +- } else if (immediateDeletion) { +- switch (obj->variantType) { +- case YAFFS_OBJECT_TYPE_FILE: +- return yaffs_DeleteFile(obj); +- break; +- case YAFFS_OBJECT_TYPE_DIRECTORY: +- return yaffs_DeleteDirectory(obj); +- break; +- case YAFFS_OBJECT_TYPE_SYMLINK: +- return yaffs_DeleteSymLink(obj); +- break; +- case YAFFS_OBJECT_TYPE_SPECIAL: +- return yaffs_DoGenericObjectDeletion(obj); +- break; +- case YAFFS_OBJECT_TYPE_HARDLINK: +- case YAFFS_OBJECT_TYPE_UNKNOWN: +- default: +- return YAFFS_FAIL; +- } +- } else +- return yaffs_ChangeObjectName(obj, obj->myDev->unlinkedDir, +- _Y("unlinked"), 0, 0); + } + + +-static int yaffs_UnlinkObject(yaffs_Object *obj) ++/* Grab us a cache chunk for use. ++ * First look for an empty one. ++ * Then look for the least recently used non-dirty one. ++ * Then look for the least recently used dirty one...., flush and look again. ++ */ ++static yaffs_cache_t *yaffs_grab_chunk_worker(yaffs_dev_t *dev) + { ++ int i; + +- if (obj && obj->unlinkAllowed) +- return yaffs_UnlinkWorker(obj); +- +- return YAFFS_FAIL; +- +-} +-int yaffs_Unlink(yaffs_Object *dir, const YCHAR *name) +-{ +- yaffs_Object *obj; ++ if (dev->param.n_caches > 0) { ++ for (i = 0; i < dev->param.n_caches; i++) { ++ if (!dev->cache[i].object) ++ return &dev->cache[i]; ++ } ++ } + +- obj = yaffs_FindObjectByName(dir, name); +- return yaffs_UnlinkObject(obj); ++ return NULL; + } + +-/*----------------------- Initialisation Scanning ---------------------- */ +- +-static void yaffs_HandleShadowedObject(yaffs_Device *dev, int objId, +- int backwardScanning) ++static yaffs_cache_t *yaffs_grab_chunk_cache(yaffs_dev_t *dev) + { +- yaffs_Object *obj; ++ yaffs_cache_t *cache; ++ yaffs_obj_t *theObj; ++ int usage; ++ int i; ++ int pushout; + +- if (!backwardScanning) { +- /* Handle YAFFS1 forward scanning case +- * For YAFFS1 we always do the deletion +- */ ++ if (dev->param.n_caches > 0) { ++ /* Try find a non-dirty one... */ + +- } else { +- /* Handle YAFFS2 case (backward scanning) +- * If the shadowed object exists then ignore. +- */ +- if (yaffs_FindObjectByNumber(dev, objId)) +- return; +- } ++ cache = yaffs_grab_chunk_worker(dev); + +- /* Let's create it (if it does not exist) assuming it is a file so that it can do shrinking etc. +- * We put it in unlinked dir to be cleaned up after the scanning +- */ +- obj = +- yaffs_FindOrCreateObjectByNumber(dev, objId, +- YAFFS_OBJECT_TYPE_FILE); +- if (!obj) +- return; +- yaffs_AddObjectToDirectory(dev->unlinkedDir, obj); +- obj->variant.fileVariant.shrinkSize = 0; +- obj->valid = 1; /* So that we don't read any other info for this file */ ++ if (!cache) { ++ /* They were all dirty, find the last recently used object and flush ++ * its cache, then find again. ++ * NB what's here is not very accurate, we actually flush the object ++ * the last recently used page. ++ */ + +-} ++ /* With locking we can't assume we can use entry zero */ + +-typedef struct { +- int seq; +- int block; +-} yaffs_BlockIndex; ++ theObj = NULL; ++ usage = -1; ++ cache = NULL; ++ pushout = -1; + ++ for (i = 0; i < dev->param.n_caches; i++) { ++ if (dev->cache[i].object && ++ !dev->cache[i].locked && ++ (dev->cache[i].last_use < usage || !cache)) { ++ usage = dev->cache[i].last_use; ++ theObj = dev->cache[i].object; ++ cache = &dev->cache[i]; ++ pushout = i; ++ } ++ } + +-static void yaffs_HardlinkFixup(yaffs_Device *dev, yaffs_Object *hardList) +-{ +- yaffs_Object *hl; +- yaffs_Object *in; ++ if (!cache || cache->dirty) { ++ /* Flush and try again */ ++ yaffs_flush_file_cache(theObj); ++ cache = yaffs_grab_chunk_worker(dev); ++ } + +- while (hardList) { +- hl = hardList; +- hardList = (yaffs_Object *) (hardList->hardLinks.next); ++ } ++ return cache; ++ } else ++ return NULL; + +- in = yaffs_FindObjectByNumber(dev, +- hl->variant.hardLinkVariant. +- equivalentObjectId); ++} + +- if (in) { +- /* Add the hardlink pointers */ +- hl->variant.hardLinkVariant.equivalentObject = in; +- ylist_add(&hl->hardLinks, &in->hardLinks); +- } else { +- /* Todo Need to report/handle this better. +- * Got a problem... hardlink to a non-existant object +- */ +- hl->variant.hardLinkVariant.equivalentObject = NULL; +- YINIT_LIST_HEAD(&hl->hardLinks); ++/* Find a cached chunk */ ++static yaffs_cache_t *yaffs_find_chunk_cache(const yaffs_obj_t *obj, ++ int chunk_id) ++{ ++ yaffs_dev_t *dev = obj->my_dev; ++ int i; ++ if (dev->param.n_caches > 0) { ++ for (i = 0; i < dev->param.n_caches; i++) { ++ if (dev->cache[i].object == obj && ++ dev->cache[i].chunk_id == chunk_id) { ++ dev->cache_hits++; + ++ return &dev->cache[i]; ++ } + } + } ++ return NULL; + } + ++/* Mark the chunk for the least recently used algorithym */ ++static void yaffs_use_cache(yaffs_dev_t *dev, yaffs_cache_t *cache, ++ int isAWrite) ++{ ++ ++ if (dev->param.n_caches > 0) { ++ if (dev->cache_last_use < 0 || dev->cache_last_use > 100000000) { ++ /* Reset the cache usages */ ++ int i; ++ for (i = 1; i < dev->param.n_caches; i++) ++ dev->cache[i].last_use = 0; + ++ dev->cache_last_use = 0; ++ } + ++ dev->cache_last_use++; + ++ cache->last_use = dev->cache_last_use; + +-static int ybicmp(const void *a, const void *b) +-{ +- register int aseq = ((yaffs_BlockIndex *)a)->seq; +- register int bseq = ((yaffs_BlockIndex *)b)->seq; +- register int ablock = ((yaffs_BlockIndex *)a)->block; +- register int bblock = ((yaffs_BlockIndex *)b)->block; +- if (aseq == bseq) +- return ablock - bblock; +- else +- return aseq - bseq; ++ if (isAWrite) ++ cache->dirty = 1; ++ } + } + ++/* Invalidate a single cache page. ++ * Do this when a whole page gets written, ++ * ie the short cache for this page is no longer valid. ++ */ ++static void yaffs_invalidate_chunk_cache(yaffs_obj_t *object, int chunk_id) ++{ ++ if (object->my_dev->param.n_caches > 0) { ++ yaffs_cache_t *cache = yaffs_find_chunk_cache(object, chunk_id); + +-struct yaffs_ShadowFixerStruct { +- int objectId; +- int shadowedId; +- struct yaffs_ShadowFixerStruct *next; +-}; +- ++ if (cache) ++ cache->object = NULL; ++ } ++} + +-static void yaffs_StripDeletedObjects(yaffs_Device *dev) ++/* Invalidate all the cache pages associated with this object ++ * Do this whenever ther file is deleted or resized. ++ */ ++static void yaffs_invalidate_whole_cache(yaffs_obj_t *in) + { +- /* +- * Sort out state of unlinked and deleted objects after scanning. +- */ +- struct ylist_head *i; +- struct ylist_head *n; +- yaffs_Object *l; ++ int i; ++ yaffs_dev_t *dev = in->my_dev; + +- /* Soft delete all the unlinked files */ +- ylist_for_each_safe(i, n, +- &dev->unlinkedDir->variant.directoryVariant.children) { +- if (i) { +- l = ylist_entry(i, yaffs_Object, siblings); +- yaffs_DeleteObject(l); ++ if (dev->param.n_caches > 0) { ++ /* Invalidate it. */ ++ for (i = 0; i < dev->param.n_caches; i++) { ++ if (dev->cache[i].object == in) ++ dev->cache[i].object = NULL; + } + } ++} + +- ylist_for_each_safe(i, n, +- &dev->deletedDir->variant.directoryVariant.children) { +- if (i) { +- l = ylist_entry(i, yaffs_Object, siblings); +- yaffs_DeleteObject(l); +- } +- } + +-} ++/*--------------------- File read/write ------------------------ ++ * Read and write have very similar structures. ++ * In general the read/write has three parts to it ++ * An incomplete chunk to start with (if the read/write is not chunk-aligned) ++ * Some complete chunks ++ * An incomplete chunk to end off with ++ * ++ * Curve-balls: the first chunk might also be the last chunk. ++ */ + +-static int yaffs_Scan(yaffs_Device *dev) ++int yaffs_file_rd(yaffs_obj_t *in, __u8 *buffer, loff_t offset, ++ int n_bytes) + { +- yaffs_ExtendedTags tags; +- int blk; +- int blockIterator; +- int startIterator; +- int endIterator; +- int result; + + int chunk; +- int c; +- int deleted; +- yaffs_BlockState state; +- yaffs_Object *hardList = NULL; +- yaffs_BlockInfo *bi; +- __u32 sequenceNumber; +- yaffs_ObjectHeader *oh; +- yaffs_Object *in; +- yaffs_Object *parent; ++ __u32 start; ++ int nToCopy; ++ int n = n_bytes; ++ int nDone = 0; ++ yaffs_cache_t *cache; + +- int alloc_failed = 0; ++ yaffs_dev_t *dev; + +- struct yaffs_ShadowFixerStruct *shadowFixerList = NULL; ++ dev = in->my_dev; + ++ while (n > 0) { ++ /* chunk = offset / dev->data_bytes_per_chunk + 1; */ ++ /* start = offset % dev->data_bytes_per_chunk; */ ++ yaffs_addr_to_chunk(dev, offset, &chunk, &start); ++ chunk++; + +- __u8 *chunkData; ++ /* OK now check for the curveball where the start and end are in ++ * the same chunk. ++ */ ++ if ((start + n) < dev->data_bytes_per_chunk) ++ nToCopy = n; ++ else ++ nToCopy = dev->data_bytes_per_chunk - start; + ++ cache = yaffs_find_chunk_cache(in, chunk); + ++ /* If the chunk is already in the cache or it is less than a whole chunk ++ * or we're using inband tags then use the cache (if there is caching) ++ * else bypass the cache. ++ */ ++ if (cache || nToCopy != dev->data_bytes_per_chunk || dev->param.inband_tags) { ++ if (dev->param.n_caches > 0) { + +- T(YAFFS_TRACE_SCAN, +- (TSTR("yaffs_Scan starts intstartblk %d intendblk %d..." TENDSTR), +- dev->internalStartBlock, dev->internalEndBlock)); ++ /* If we can't find the data in the cache, then load it up. */ + +- chunkData = yaffs_GetTempBuffer(dev, __LINE__); ++ if (!cache) { ++ cache = yaffs_grab_chunk_cache(in->my_dev); ++ cache->object = in; ++ cache->chunk_id = chunk; ++ cache->dirty = 0; ++ cache->locked = 0; ++ yaffs_rd_data_obj(in, chunk, ++ cache-> ++ data); ++ cache->n_bytes = 0; ++ } + +- dev->sequenceNumber = YAFFS_LOWEST_SEQUENCE_NUMBER; ++ yaffs_use_cache(dev, cache, 0); + +- /* Scan all the blocks to determine their state */ +- for (blk = dev->internalStartBlock; blk <= dev->internalEndBlock; blk++) { +- bi = yaffs_GetBlockInfo(dev, blk); +- yaffs_ClearChunkBits(dev, blk); +- bi->pagesInUse = 0; +- bi->softDeletions = 0; ++ cache->locked = 1; + +- yaffs_QueryInitialBlockState(dev, blk, &state, &sequenceNumber); + +- bi->blockState = state; +- bi->sequenceNumber = sequenceNumber; ++ memcpy(buffer, &cache->data[start], nToCopy); + +- if (bi->sequenceNumber == YAFFS_SEQUENCE_BAD_BLOCK) +- bi->blockState = state = YAFFS_BLOCK_STATE_DEAD; ++ cache->locked = 0; ++ } else { ++ /* Read into the local buffer then copy..*/ + +- T(YAFFS_TRACE_SCAN_DEBUG, +- (TSTR("Block scanning block %d state %d seq %d" TENDSTR), blk, +- state, sequenceNumber)); ++ __u8 *localBuffer = ++ yaffs_get_temp_buffer(dev, __LINE__); ++ yaffs_rd_data_obj(in, chunk, ++ localBuffer); + +- if (state == YAFFS_BLOCK_STATE_DEAD) { +- T(YAFFS_TRACE_BAD_BLOCKS, +- (TSTR("block %d is bad" TENDSTR), blk)); +- } else if (state == YAFFS_BLOCK_STATE_EMPTY) { +- T(YAFFS_TRACE_SCAN_DEBUG, +- (TSTR("Block empty " TENDSTR))); +- dev->nErasedBlocks++; +- dev->nFreeChunks += dev->nChunksPerBlock; +- } +- } ++ memcpy(buffer, &localBuffer[start], nToCopy); + +- startIterator = dev->internalStartBlock; +- endIterator = dev->internalEndBlock; + +- /* For each block.... */ +- for (blockIterator = startIterator; !alloc_failed && blockIterator <= endIterator; +- blockIterator++) { ++ yaffs_release_temp_buffer(dev, localBuffer, ++ __LINE__); ++ } + +- YYIELD(); ++ } else { + +- YYIELD(); ++ /* A full chunk. Read directly into the supplied buffer. */ ++ yaffs_rd_data_obj(in, chunk, buffer); + +- blk = blockIterator; ++ } + +- bi = yaffs_GetBlockInfo(dev, blk); +- state = bi->blockState; ++ n -= nToCopy; ++ offset += nToCopy; ++ buffer += nToCopy; ++ nDone += nToCopy; + +- deleted = 0; ++ } + +- /* For each chunk in each block that needs scanning....*/ +- for (c = 0; !alloc_failed && c < dev->nChunksPerBlock && +- state == YAFFS_BLOCK_STATE_NEEDS_SCANNING; c++) { +- /* Read the tags and decide what to do */ +- chunk = blk * dev->nChunksPerBlock + c; ++ return nDone; ++} + +- result = yaffs_ReadChunkWithTagsFromNAND(dev, chunk, NULL, +- &tags); ++int yaffs_do_file_wr(yaffs_obj_t *in, const __u8 *buffer, loff_t offset, ++ int n_bytes, int write_trhrough) ++{ + +- /* Let's have a good look at this chunk... */ ++ int chunk; ++ __u32 start; ++ int nToCopy; ++ int n = n_bytes; ++ int nDone = 0; ++ int nToWriteBack; ++ int startOfWrite = offset; ++ int chunkWritten = 0; ++ __u32 n_bytesRead; ++ __u32 chunkStart; + +- if (tags.eccResult == YAFFS_ECC_RESULT_UNFIXED || tags.chunkDeleted) { +- /* YAFFS1 only... +- * A deleted chunk +- */ +- deleted++; +- dev->nFreeChunks++; +- /*T((" %d %d deleted\n",blk,c)); */ +- } else if (!tags.chunkUsed) { +- /* An unassigned chunk in the block +- * This means that either the block is empty or +- * this is the one being allocated from +- */ ++ yaffs_dev_t *dev; + +- if (c == 0) { +- /* We're looking at the first chunk in the block so the block is unused */ +- state = YAFFS_BLOCK_STATE_EMPTY; +- dev->nErasedBlocks++; +- } else { +- /* this is the block being allocated from */ +- T(YAFFS_TRACE_SCAN, +- (TSTR +- (" Allocating from %d %d" TENDSTR), +- blk, c)); +- state = YAFFS_BLOCK_STATE_ALLOCATING; +- dev->allocationBlock = blk; +- dev->allocationPage = c; +- dev->allocationBlockFinder = blk; +- /* Set it to here to encourage the allocator to go forth from here. */ ++ dev = in->my_dev; + +- } ++ while (n > 0 && chunkWritten >= 0) { ++ yaffs_addr_to_chunk(dev, offset, &chunk, &start); + +- dev->nFreeChunks += (dev->nChunksPerBlock - c); +- } else if (tags.chunkId > 0) { +- /* chunkId > 0 so it is a data chunk... */ +- unsigned int endpos; +- +- yaffs_SetChunkBit(dev, blk, c); +- bi->pagesInUse++; +- +- in = yaffs_FindOrCreateObjectByNumber(dev, +- tags. +- objectId, +- YAFFS_OBJECT_TYPE_FILE); +- /* PutChunkIntoFile checks for a clash (two data chunks with +- * the same chunkId). +- */ ++ if (chunk * dev->data_bytes_per_chunk + start != offset || ++ start >= dev->data_bytes_per_chunk) { ++ T(YAFFS_TRACE_ERROR, ( ++ TSTR("AddrToChunk of offset %d gives chunk %d start %d" ++ TENDSTR), ++ (int)offset, chunk, start)); ++ } ++ chunk++; /* File pos to chunk in file offset */ + +- if (!in) +- alloc_failed = 1; ++ /* OK now check for the curveball where the start and end are in ++ * the same chunk. ++ */ + +- if (in) { +- if (!yaffs_PutChunkIntoFile(in, tags.chunkId, chunk, 1)) +- alloc_failed = 1; +- } ++ if ((start + n) < dev->data_bytes_per_chunk) { ++ nToCopy = n; + +- endpos = +- (tags.chunkId - 1) * dev->nDataBytesPerChunk + +- tags.byteCount; +- if (in && +- in->variantType == YAFFS_OBJECT_TYPE_FILE +- && in->variant.fileVariant.scannedFileSize < +- endpos) { +- in->variant.fileVariant. +- scannedFileSize = endpos; +- if (!dev->useHeaderFileSize) { +- in->variant.fileVariant. +- fileSize = +- in->variant.fileVariant. +- scannedFileSize; +- } ++ /* Now folks, to calculate how many bytes to write back.... ++ * If we're overwriting and not writing to then end of file then ++ * we need to write back as much as was there before. ++ */ + +- } +- /* T((" %d %d data %d %d\n",blk,c,tags.objectId,tags.chunkId)); */ +- } else { +- /* chunkId == 0, so it is an ObjectHeader. +- * Thus, we read in the object header and make the object +- */ +- yaffs_SetChunkBit(dev, blk, c); +- bi->pagesInUse++; ++ chunkStart = ((chunk - 1) * dev->data_bytes_per_chunk); + +- result = yaffs_ReadChunkWithTagsFromNAND(dev, chunk, +- chunkData, +- NULL); +- +- oh = (yaffs_ObjectHeader *) chunkData; +- +- in = yaffs_FindObjectByNumber(dev, +- tags.objectId); +- if (in && in->variantType != oh->type) { +- /* This should not happen, but somehow +- * Wev'e ended up with an objectId that has been reused but not yet +- * deleted, and worse still it has changed type. Delete the old object. +- */ ++ if (chunkStart > in->variant.file_variant.file_size) ++ n_bytesRead = 0; /* Past end of file */ ++ else ++ n_bytesRead = in->variant.file_variant.file_size - chunkStart; + +- yaffs_DeleteObject(in); ++ if (n_bytesRead > dev->data_bytes_per_chunk) ++ n_bytesRead = dev->data_bytes_per_chunk; + +- in = 0; +- } ++ nToWriteBack = ++ (n_bytesRead > ++ (start + n)) ? n_bytesRead : (start + n); + +- in = yaffs_FindOrCreateObjectByNumber(dev, +- tags. +- objectId, +- oh->type); +- +- if (!in) +- alloc_failed = 1; +- +- if (in && oh->shadowsObject > 0) { +- +- struct yaffs_ShadowFixerStruct *fixer; +- fixer = YMALLOC(sizeof(struct yaffs_ShadowFixerStruct)); +- if (fixer) { +- fixer->next = shadowFixerList; +- shadowFixerList = fixer; +- fixer->objectId = tags.objectId; +- fixer->shadowedId = oh->shadowsObject; +- } ++ if (nToWriteBack < 0 || nToWriteBack > dev->data_bytes_per_chunk) ++ YBUG(); ++ ++ } else { ++ nToCopy = dev->data_bytes_per_chunk - start; ++ nToWriteBack = dev->data_bytes_per_chunk; ++ } ++ ++ if (nToCopy != dev->data_bytes_per_chunk || dev->param.inband_tags) { ++ /* An incomplete start or end chunk (or maybe both start and end chunk), ++ * or we're using inband tags, so we want to use the cache buffers. ++ */ ++ if (dev->param.n_caches > 0) { ++ yaffs_cache_t *cache; ++ /* If we can't find the data in the cache, then load the cache */ ++ cache = yaffs_find_chunk_cache(in, chunk); + ++ if (!cache ++ && yaffs_check_alloc_available(dev, 1)) { ++ cache = yaffs_grab_chunk_cache(dev); ++ cache->object = in; ++ cache->chunk_id = chunk; ++ cache->dirty = 0; ++ cache->locked = 0; ++ yaffs_rd_data_obj(in, chunk, ++ cache->data); ++ } else if (cache && ++ !cache->dirty && ++ !yaffs_check_alloc_available(dev, 1)) { ++ /* Drop the cache if it was a read cache item and ++ * no space check has been made for it. ++ */ ++ cache = NULL; + } + +- if (in && in->valid) { +- /* We have already filled this one. We have a duplicate and need to resolve it. */ ++ if (cache) { ++ yaffs_use_cache(dev, cache, 1); ++ cache->locked = 1; + +- unsigned existingSerial = in->serial; +- unsigned newSerial = tags.serialNumber; + +- if (((existingSerial + 1) & 3) == newSerial) { +- /* Use new one - destroy the exisiting one */ +- yaffs_DeleteChunk(dev, +- in->hdrChunk, +- 1, __LINE__); +- in->valid = 0; +- } else { +- /* Use existing - destroy this one. */ +- yaffs_DeleteChunk(dev, chunk, 1, +- __LINE__); ++ memcpy(&cache->data[start], buffer, ++ nToCopy); ++ ++ ++ cache->locked = 0; ++ cache->n_bytes = nToWriteBack; ++ ++ if (write_trhrough) { ++ chunkWritten = ++ yaffs_wr_data_obj ++ (cache->object, ++ cache->chunk_id, ++ cache->data, cache->n_bytes, ++ 1); ++ cache->dirty = 0; + } ++ ++ } else { ++ chunkWritten = -1; /* fail the write */ + } ++ } else { ++ /* An incomplete start or end chunk (or maybe both start and end chunk) ++ * Read into the local buffer then copy, then copy over and write back. ++ */ + +- if (in && !in->valid && +- (tags.objectId == YAFFS_OBJECTID_ROOT || +- tags.objectId == YAFFS_OBJECTID_LOSTNFOUND)) { +- /* We only load some info, don't fiddle with directory structure */ +- in->valid = 1; +- in->variantType = oh->type; ++ __u8 *localBuffer = ++ yaffs_get_temp_buffer(dev, __LINE__); + +- in->yst_mode = oh->yst_mode; +-#ifdef CONFIG_YAFFS_WINCE +- in->win_atime[0] = oh->win_atime[0]; +- in->win_ctime[0] = oh->win_ctime[0]; +- in->win_mtime[0] = oh->win_mtime[0]; +- in->win_atime[1] = oh->win_atime[1]; +- in->win_ctime[1] = oh->win_ctime[1]; +- in->win_mtime[1] = oh->win_mtime[1]; +-#else +- in->yst_uid = oh->yst_uid; +- in->yst_gid = oh->yst_gid; +- in->yst_atime = oh->yst_atime; +- in->yst_mtime = oh->yst_mtime; +- in->yst_ctime = oh->yst_ctime; +- in->yst_rdev = oh->yst_rdev; +-#endif +- in->hdrChunk = chunk; +- in->serial = tags.serialNumber; ++ yaffs_rd_data_obj(in, chunk, ++ localBuffer); + +- } else if (in && !in->valid) { +- /* we need to load this info */ + +- in->valid = 1; +- in->variantType = oh->type; + +- in->yst_mode = oh->yst_mode; +-#ifdef CONFIG_YAFFS_WINCE +- in->win_atime[0] = oh->win_atime[0]; +- in->win_ctime[0] = oh->win_ctime[0]; +- in->win_mtime[0] = oh->win_mtime[0]; +- in->win_atime[1] = oh->win_atime[1]; +- in->win_ctime[1] = oh->win_ctime[1]; +- in->win_mtime[1] = oh->win_mtime[1]; +-#else +- in->yst_uid = oh->yst_uid; +- in->yst_gid = oh->yst_gid; +- in->yst_atime = oh->yst_atime; +- in->yst_mtime = oh->yst_mtime; +- in->yst_ctime = oh->yst_ctime; +- in->yst_rdev = oh->yst_rdev; +-#endif +- in->hdrChunk = chunk; +- in->serial = tags.serialNumber; ++ memcpy(&localBuffer[start], buffer, nToCopy); + +- yaffs_SetObjectName(in, oh->name); +- in->dirty = 0; ++ chunkWritten = ++ yaffs_wr_data_obj(in, chunk, ++ localBuffer, ++ nToWriteBack, ++ 0); + +- /* directory stuff... +- * hook up to parent +- */ ++ yaffs_release_temp_buffer(dev, localBuffer, ++ __LINE__); + +- parent = +- yaffs_FindOrCreateObjectByNumber +- (dev, oh->parentObjectId, +- YAFFS_OBJECT_TYPE_DIRECTORY); +- if (!parent) +- alloc_failed = 1; +- if (parent && parent->variantType == +- YAFFS_OBJECT_TYPE_UNKNOWN) { +- /* Set up as a directory */ +- parent->variantType = +- YAFFS_OBJECT_TYPE_DIRECTORY; +- YINIT_LIST_HEAD(&parent->variant. +- directoryVariant. +- children); +- } else if (!parent || parent->variantType != +- YAFFS_OBJECT_TYPE_DIRECTORY) { +- /* Hoosterman, another problem.... +- * We're trying to use a non-directory as a directory +- */ ++ } + +- T(YAFFS_TRACE_ERROR, +- (TSTR +- ("yaffs tragedy: attempting to use non-directory as a directory in scan. Put in lost+found." +- TENDSTR))); +- parent = dev->lostNFoundDir; +- } ++ } else { ++ /* A full chunk. Write directly from the supplied buffer. */ + +- yaffs_AddObjectToDirectory(parent, in); + +- if (0 && (parent == dev->deletedDir || +- parent == dev->unlinkedDir)) { +- in->deleted = 1; /* If it is unlinked at start up then it wants deleting */ +- dev->nDeletedFiles++; +- } +- /* Note re hardlinks. +- * Since we might scan a hardlink before its equivalent object is scanned +- * we put them all in a list. +- * After scanning is complete, we should have all the objects, so we run through this +- * list and fix up all the chains. +- */ + +- switch (in->variantType) { +- case YAFFS_OBJECT_TYPE_UNKNOWN: +- /* Todo got a problem */ +- break; +- case YAFFS_OBJECT_TYPE_FILE: +- if (dev->useHeaderFileSize) +- +- in->variant.fileVariant. +- fileSize = +- oh->fileSize; +- +- break; +- case YAFFS_OBJECT_TYPE_HARDLINK: +- in->variant.hardLinkVariant. +- equivalentObjectId = +- oh->equivalentObjectId; +- in->hardLinks.next = +- (struct ylist_head *) +- hardList; +- hardList = in; +- break; +- case YAFFS_OBJECT_TYPE_DIRECTORY: +- /* Do nothing */ +- break; +- case YAFFS_OBJECT_TYPE_SPECIAL: +- /* Do nothing */ +- break; +- case YAFFS_OBJECT_TYPE_SYMLINK: +- in->variant.symLinkVariant.alias = +- yaffs_CloneString(oh->alias); +- if (!in->variant.symLinkVariant.alias) +- alloc_failed = 1; +- break; +- } ++ chunkWritten = ++ yaffs_wr_data_obj(in, chunk, buffer, ++ dev->data_bytes_per_chunk, ++ 0); + +-/* +- if (parent == dev->deletedDir) { +- yaffs_DestroyObject(in); +- bi->hasShrinkHeader = 1; +- } +-*/ +- } +- } ++ /* Since we've overwritten the cached data, we better invalidate it. */ ++ yaffs_invalidate_chunk_cache(in, chunk); + } + +- if (state == YAFFS_BLOCK_STATE_NEEDS_SCANNING) { +- /* If we got this far while scanning, then the block is fully allocated.*/ +- state = YAFFS_BLOCK_STATE_FULL; ++ if (chunkWritten >= 0) { ++ n -= nToCopy; ++ offset += nToCopy; ++ buffer += nToCopy; ++ nDone += nToCopy; + } + +- bi->blockState = state; ++ } + +- /* Now let's see if it was dirty */ +- if (bi->pagesInUse == 0 && +- !bi->hasShrinkHeader && +- bi->blockState == YAFFS_BLOCK_STATE_FULL) { +- yaffs_BlockBecameDirty(dev, blk); +- } ++ /* Update file object */ + +- } ++ if ((startOfWrite + nDone) > in->variant.file_variant.file_size) ++ in->variant.file_variant.file_size = (startOfWrite + nDone); + ++ in->dirty = 1; + +- /* Ok, we've done all the scanning. +- * Fix up the hard link chains. +- * We should now have scanned all the objects, now it's time to add these +- * hardlinks. +- */ ++ return nDone; ++} + +- yaffs_HardlinkFixup(dev, hardList); ++int yaffs_wr_file(yaffs_obj_t *in, const __u8 *buffer, loff_t offset, ++ int n_bytes, int write_trhrough) ++{ ++ yaffs2_handle_hole(in,offset); ++ return yaffs_do_file_wr(in,buffer,offset,n_bytes,write_trhrough); ++} + +- /* Fix up any shadowed objects */ +- { +- struct yaffs_ShadowFixerStruct *fixer; +- yaffs_Object *obj; +- +- while (shadowFixerList) { +- fixer = shadowFixerList; +- shadowFixerList = fixer->next; +- /* Complete the rename transaction by deleting the shadowed object +- * then setting the object header to unshadowed. +- */ +- obj = yaffs_FindObjectByNumber(dev, fixer->shadowedId); +- if (obj) +- yaffs_DeleteObject(obj); + +- obj = yaffs_FindObjectByNumber(dev, fixer->objectId); + +- if (obj) +- yaffs_UpdateObjectHeader(obj, NULL, 1, 0, 0); ++/* ---------------------- File resizing stuff ------------------ */ + +- YFREE(fixer); +- } +- } ++static void yaffs_prune_chunks(yaffs_obj_t *in, int new_size) ++{ + +- yaffs_ReleaseTempBuffer(dev, chunkData, __LINE__); ++ yaffs_dev_t *dev = in->my_dev; ++ int oldFileSize = in->variant.file_variant.file_size; + +- if (alloc_failed) +- return YAFFS_FAIL; ++ int lastDel = 1 + (oldFileSize - 1) / dev->data_bytes_per_chunk; ++ ++ int startDel = 1 + (new_size + dev->data_bytes_per_chunk - 1) / ++ dev->data_bytes_per_chunk; ++ int i; ++ int chunk_id; + +- T(YAFFS_TRACE_SCAN, (TSTR("yaffs_Scan ends" TENDSTR))); ++ /* Delete backwards so that we don't end up with holes if ++ * power is lost part-way through the operation. ++ */ ++ for (i = lastDel; i >= startDel; i--) { ++ /* NB this could be optimised somewhat, ++ * eg. could retrieve the tags and write them without ++ * using yaffs_chunk_del ++ */ + ++ chunk_id = yaffs_find_del_file_chunk(in, i, NULL); ++ if (chunk_id > 0) { ++ if (chunk_id < ++ (dev->internal_start_block * dev->param.chunks_per_block) ++ || chunk_id >= ++ ((dev->internal_end_block + ++ 1) * dev->param.chunks_per_block)) { ++ T(YAFFS_TRACE_ALWAYS, ++ (TSTR("Found daft chunk_id %d for %d" TENDSTR), ++ chunk_id, i)); ++ } else { ++ in->n_data_chunks--; ++ yaffs_chunk_del(dev, chunk_id, 1, __LINE__); ++ } ++ } ++ } + +- return YAFFS_OK; + } + +-static void yaffs_CheckObjectDetailsLoaded(yaffs_Object *in) +-{ +- __u8 *chunkData; +- yaffs_ObjectHeader *oh; +- yaffs_Device *dev; +- yaffs_ExtendedTags tags; +- int result; +- int alloc_failed = 0; + +- if (!in) +- return; ++void yaffs_resize_file_down( yaffs_obj_t *obj, loff_t new_size) ++{ ++ int newFullChunks; ++ __u32 new_sizeOfPartialChunk; ++ yaffs_dev_t *dev = obj->my_dev; + +- dev = in->myDev; ++ yaffs_addr_to_chunk(dev, new_size, &newFullChunks, &new_sizeOfPartialChunk); + +-#if 0 +- T(YAFFS_TRACE_SCAN, (TSTR("details for object %d %s loaded" TENDSTR), +- in->objectId, +- in->lazyLoaded ? "not yet" : "already")); +-#endif ++ yaffs_prune_chunks(obj, new_size); + +- if (in->lazyLoaded && in->hdrChunk > 0) { +- in->lazyLoaded = 0; +- chunkData = yaffs_GetTempBuffer(dev, __LINE__); ++ if (new_sizeOfPartialChunk != 0) { ++ int lastChunk = 1 + newFullChunks; ++ __u8 *localBuffer = yaffs_get_temp_buffer(dev, __LINE__); + +- result = yaffs_ReadChunkWithTagsFromNAND(dev, in->hdrChunk, chunkData, &tags); +- oh = (yaffs_ObjectHeader *) chunkData; ++ /* Got to read and rewrite the last chunk with its new size and zero pad */ ++ yaffs_rd_data_obj(obj, lastChunk, localBuffer); ++ memset(localBuffer + new_sizeOfPartialChunk, 0, ++ dev->data_bytes_per_chunk - new_sizeOfPartialChunk); + +- in->yst_mode = oh->yst_mode; +-#ifdef CONFIG_YAFFS_WINCE +- in->win_atime[0] = oh->win_atime[0]; +- in->win_ctime[0] = oh->win_ctime[0]; +- in->win_mtime[0] = oh->win_mtime[0]; +- in->win_atime[1] = oh->win_atime[1]; +- in->win_ctime[1] = oh->win_ctime[1]; +- in->win_mtime[1] = oh->win_mtime[1]; +-#else +- in->yst_uid = oh->yst_uid; +- in->yst_gid = oh->yst_gid; +- in->yst_atime = oh->yst_atime; +- in->yst_mtime = oh->yst_mtime; +- in->yst_ctime = oh->yst_ctime; +- in->yst_rdev = oh->yst_rdev; ++ yaffs_wr_data_obj(obj, lastChunk, localBuffer, ++ new_sizeOfPartialChunk, 1); + +-#endif +- yaffs_SetObjectName(in, oh->name); ++ yaffs_release_temp_buffer(dev, localBuffer, __LINE__); ++ } + +- if (in->variantType == YAFFS_OBJECT_TYPE_SYMLINK) { +- in->variant.symLinkVariant.alias = +- yaffs_CloneString(oh->alias); +- if (!in->variant.symLinkVariant.alias) +- alloc_failed = 1; /* Not returned to caller */ +- } ++ obj->variant.file_variant.file_size = new_size; + +- yaffs_ReleaseTempBuffer(dev, chunkData, __LINE__); +- } ++ yaffs_prune_tree(dev, &obj->variant.file_variant); + } + +-static int yaffs_ScanBackwards(yaffs_Device *dev) +-{ +- yaffs_ExtendedTags tags; +- int blk; +- int blockIterator; +- int startIterator; +- int endIterator; +- int nBlocksToScan = 0; +- +- int chunk; +- int result; +- int c; +- int deleted; +- yaffs_BlockState state; +- yaffs_Object *hardList = NULL; +- yaffs_BlockInfo *bi; +- __u32 sequenceNumber; +- yaffs_ObjectHeader *oh; +- yaffs_Object *in; +- yaffs_Object *parent; +- int nBlocks = dev->internalEndBlock - dev->internalStartBlock + 1; +- int itsUnlinked; +- __u8 *chunkData; + +- int fileSize; +- int isShrink; +- int foundChunksInBlock; +- int equivalentObjectId; +- int alloc_failed = 0; ++int yaffs_resize_file(yaffs_obj_t *in, loff_t new_size) ++{ ++ yaffs_dev_t *dev = in->my_dev; ++ int oldFileSize = in->variant.file_variant.file_size; + ++ yaffs_flush_file_cache(in); ++ yaffs_invalidate_whole_cache(in); + +- yaffs_BlockIndex *blockIndex = NULL; +- int altBlockIndex = 0; ++ yaffs_check_gc(dev,0); + +- if (!dev->isYaffs2) { +- T(YAFFS_TRACE_SCAN, +- (TSTR("yaffs_ScanBackwards is only for YAFFS2!" TENDSTR))); ++ if (in->variant_type != YAFFS_OBJECT_TYPE_FILE) + return YAFFS_FAIL; +- } + +- T(YAFFS_TRACE_SCAN, +- (TSTR +- ("yaffs_ScanBackwards starts intstartblk %d intendblk %d..." +- TENDSTR), dev->internalStartBlock, dev->internalEndBlock)); ++ if (new_size == oldFileSize) ++ return YAFFS_OK; ++ ++ if(new_size > oldFileSize){ ++ yaffs2_handle_hole(in,new_size); ++ in->variant.file_variant.file_size = new_size; ++ } else { ++ /* new_size < oldFileSize */ ++ yaffs_resize_file_down(in, new_size); ++ } + ++ /* Write a new object header to reflect the resize. ++ * show we've shrunk the file, if need be ++ * Do this only if the file is not in the deleted directories ++ * and is not shadowed. ++ */ ++ if (in->parent && ++ !in->is_shadowed && ++ in->parent->obj_id != YAFFS_OBJECTID_UNLINKED && ++ in->parent->obj_id != YAFFS_OBJECTID_DELETED) ++ yaffs_update_oh(in, NULL, 0, 0, 0, NULL); + +- dev->sequenceNumber = YAFFS_LOWEST_SEQUENCE_NUMBER; + +- blockIndex = YMALLOC(nBlocks * sizeof(yaffs_BlockIndex)); ++ return YAFFS_OK; ++} + +- if (!blockIndex) { +- blockIndex = YMALLOC_ALT(nBlocks * sizeof(yaffs_BlockIndex)); +- altBlockIndex = 1; +- } ++loff_t yaffs_get_file_size(yaffs_obj_t *obj) ++{ ++ YCHAR *alias = NULL; ++ obj = yaffs_get_equivalent_obj(obj); + +- if (!blockIndex) { +- T(YAFFS_TRACE_SCAN, +- (TSTR("yaffs_Scan() could not allocate block index!" TENDSTR))); +- return YAFFS_FAIL; ++ switch (obj->variant_type) { ++ case YAFFS_OBJECT_TYPE_FILE: ++ return obj->variant.file_variant.file_size; ++ case YAFFS_OBJECT_TYPE_SYMLINK: ++ alias = obj->variant.symlink_variant.alias; ++ if(!alias) ++ return 0; ++ return yaffs_strnlen(alias,YAFFS_MAX_ALIAS_LENGTH); ++ default: ++ return 0; + } ++} + +- dev->blocksInCheckpoint = 0; +- +- chunkData = yaffs_GetTempBuffer(dev, __LINE__); +- +- /* Scan all the blocks to determine their state */ +- for (blk = dev->internalStartBlock; blk <= dev->internalEndBlock; blk++) { +- bi = yaffs_GetBlockInfo(dev, blk); +- yaffs_ClearChunkBits(dev, blk); +- bi->pagesInUse = 0; +- bi->softDeletions = 0; +- +- yaffs_QueryInitialBlockState(dev, blk, &state, &sequenceNumber); + +- bi->blockState = state; +- bi->sequenceNumber = sequenceNumber; + +- if (bi->sequenceNumber == YAFFS_SEQUENCE_CHECKPOINT_DATA) +- bi->blockState = state = YAFFS_BLOCK_STATE_CHECKPOINT; +- if (bi->sequenceNumber == YAFFS_SEQUENCE_BAD_BLOCK) +- bi->blockState = state = YAFFS_BLOCK_STATE_DEAD; ++int yaffs_flush_file(yaffs_obj_t *in, int update_time, int data_sync) ++{ ++ int retVal; ++ if (in->dirty) { ++ yaffs_flush_file_cache(in); ++ if(data_sync) /* Only sync data */ ++ retVal=YAFFS_OK; ++ else { ++ if (update_time) { ++#ifdef CONFIG_YAFFS_WINCE ++ yfsd_win_file_time_now(in->win_mtime); ++#else + +- T(YAFFS_TRACE_SCAN_DEBUG, +- (TSTR("Block scanning block %d state %d seq %d" TENDSTR), blk, +- state, sequenceNumber)); ++ in->yst_mtime = Y_CURRENT_TIME; + ++#endif ++ } + +- if (state == YAFFS_BLOCK_STATE_CHECKPOINT) { +- dev->blocksInCheckpoint++; ++ retVal = (yaffs_update_oh(in, NULL, 0, 0, 0, NULL) >= ++ 0) ? YAFFS_OK : YAFFS_FAIL; ++ } ++ } else { ++ retVal = YAFFS_OK; ++ } + +- } else if (state == YAFFS_BLOCK_STATE_DEAD) { +- T(YAFFS_TRACE_BAD_BLOCKS, +- (TSTR("block %d is bad" TENDSTR), blk)); +- } else if (state == YAFFS_BLOCK_STATE_EMPTY) { +- T(YAFFS_TRACE_SCAN_DEBUG, +- (TSTR("Block empty " TENDSTR))); +- dev->nErasedBlocks++; +- dev->nFreeChunks += dev->nChunksPerBlock; +- } else if (state == YAFFS_BLOCK_STATE_NEEDS_SCANNING) { ++ return retVal; + +- /* Determine the highest sequence number */ +- if (sequenceNumber >= YAFFS_LOWEST_SEQUENCE_NUMBER && +- sequenceNumber < YAFFS_HIGHEST_SEQUENCE_NUMBER) { ++} + +- blockIndex[nBlocksToScan].seq = sequenceNumber; +- blockIndex[nBlocksToScan].block = blk; ++static int yaffs_generic_obj_del(yaffs_obj_t *in) ++{ + +- nBlocksToScan++; ++ /* First off, invalidate the file's data in the cache, without flushing. */ ++ yaffs_invalidate_whole_cache(in); + +- if (sequenceNumber >= dev->sequenceNumber) +- dev->sequenceNumber = sequenceNumber; +- } else { +- /* TODO: Nasty sequence number! */ +- T(YAFFS_TRACE_SCAN, +- (TSTR +- ("Block scanning block %d has bad sequence number %d" +- TENDSTR), blk, sequenceNumber)); ++ if (in->my_dev->param.is_yaffs2 && (in->parent != in->my_dev->del_dir)) { ++ /* Move to the unlinked directory so we have a record that it was deleted. */ ++ yaffs_change_obj_name(in, in->my_dev->del_dir, _Y("deleted"), 0, 0); + +- } +- } + } + +- T(YAFFS_TRACE_SCAN, +- (TSTR("%d blocks to be sorted..." TENDSTR), nBlocksToScan)); ++ yaffs_remove_obj_from_dir(in); ++ yaffs_chunk_del(in->my_dev, in->hdr_chunk, 1, __LINE__); ++ in->hdr_chunk = 0; + ++ yaffs_free_obj(in); ++ return YAFFS_OK; + ++} + +- YYIELD(); ++/* yaffs_del_file deletes the whole file data ++ * and the inode associated with the file. ++ * It does not delete the links associated with the file. ++ */ ++static int yaffs_unlink_file_if_needed(yaffs_obj_t *in) ++{ + +- /* Sort the blocks */ +-#ifndef CONFIG_YAFFS_USE_OWN_SORT +- { +- /* Use qsort now. */ +- yaffs_qsort(blockIndex, nBlocksToScan, sizeof(yaffs_BlockIndex), ybicmp); +- } +-#else +- { +- /* Dungy old bubble sort... */ ++ int retVal; ++ int immediateDeletion = 0; ++ yaffs_dev_t *dev = in->my_dev; + +- yaffs_BlockIndex temp; +- int i; +- int j; ++ if (!in->my_inode) ++ immediateDeletion = 1; + +- for (i = 0; i < nBlocksToScan; i++) +- for (j = i + 1; j < nBlocksToScan; j++) +- if (blockIndex[i].seq > blockIndex[j].seq) { +- temp = blockIndex[j]; +- blockIndex[j] = blockIndex[i]; +- blockIndex[i] = temp; +- } ++ if (immediateDeletion) { ++ retVal = ++ yaffs_change_obj_name(in, in->my_dev->del_dir, ++ _Y("deleted"), 0, 0); ++ T(YAFFS_TRACE_TRACING, ++ (TSTR("yaffs: immediate deletion of file %d" TENDSTR), ++ in->obj_id)); ++ in->deleted = 1; ++ in->my_dev->n_deleted_files++; ++ if (dev->param.disable_soft_del || dev->param.is_yaffs2) ++ yaffs_resize_file(in, 0); ++ yaffs_soft_del_file(in); ++ } else { ++ retVal = ++ yaffs_change_obj_name(in, in->my_dev->unlinked_dir, ++ _Y("unlinked"), 0, 0); + } +-#endif + +- YYIELD(); + +- T(YAFFS_TRACE_SCAN, (TSTR("...done" TENDSTR))); ++ return retVal; ++} + +- /* Now scan the blocks looking at the data. */ +- startIterator = 0; +- endIterator = nBlocksToScan - 1; +- T(YAFFS_TRACE_SCAN_DEBUG, +- (TSTR("%d blocks to be scanned" TENDSTR), nBlocksToScan)); ++int yaffs_del_file(yaffs_obj_t *in) ++{ ++ int retVal = YAFFS_OK; ++ int deleted; /* Need to cache value on stack if in is freed */ ++ yaffs_dev_t *dev = in->my_dev; + +- /* For each block.... backwards */ +- for (blockIterator = endIterator; !alloc_failed && blockIterator >= startIterator; +- blockIterator--) { +- /* Cooperative multitasking! This loop can run for so +- long that watchdog timers expire. */ +- YYIELD(); ++ if (dev->param.disable_soft_del || dev->param.is_yaffs2) ++ yaffs_resize_file(in, 0); + +- /* get the block to scan in the correct order */ +- blk = blockIndex[blockIterator].block; ++ if (in->n_data_chunks > 0) { ++ /* Use soft deletion if there is data in the file. ++ * That won't be the case if it has been resized to zero. ++ */ ++ if (!in->unlinked) ++ retVal = yaffs_unlink_file_if_needed(in); + +- bi = yaffs_GetBlockInfo(dev, blk); ++ deleted = in->deleted; + ++ if (retVal == YAFFS_OK && in->unlinked && !in->deleted) { ++ in->deleted = 1; ++ deleted = 1; ++ in->my_dev->n_deleted_files++; ++ yaffs_soft_del_file(in); ++ } ++ return deleted ? YAFFS_OK : YAFFS_FAIL; ++ } else { ++ /* The file has no data chunks so we toss it immediately */ ++ yaffs_free_tnode(in->my_dev, in->variant.file_variant.top); ++ in->variant.file_variant.top = NULL; ++ yaffs_generic_obj_del(in); + +- state = bi->blockState; ++ return YAFFS_OK; ++ } ++} + +- deleted = 0; ++static int yaffs_is_non_empty_dir(yaffs_obj_t *obj) ++{ ++ return (obj->variant_type == YAFFS_OBJECT_TYPE_DIRECTORY) && ++ !(ylist_empty(&obj->variant.dir_variant.children)); ++} + +- /* For each chunk in each block that needs scanning.... */ +- foundChunksInBlock = 0; +- for (c = dev->nChunksPerBlock - 1; +- !alloc_failed && c >= 0 && +- (state == YAFFS_BLOCK_STATE_NEEDS_SCANNING || +- state == YAFFS_BLOCK_STATE_ALLOCATING); c--) { +- /* Scan backwards... +- * Read the tags and decide what to do +- */ ++static int yaffs_del_dir(yaffs_obj_t *obj) ++{ ++ /* First check that the directory is empty. */ ++ if (yaffs_is_non_empty_dir(obj)) ++ return YAFFS_FAIL; + +- chunk = blk * dev->nChunksPerBlock + c; ++ return yaffs_generic_obj_del(obj); ++} + +- result = yaffs_ReadChunkWithTagsFromNAND(dev, chunk, NULL, +- &tags); ++static int yaffs_del_symlink(yaffs_obj_t *in) ++{ ++ if(in->variant.symlink_variant.alias) ++ YFREE(in->variant.symlink_variant.alias); ++ in->variant.symlink_variant.alias=NULL; + +- /* Let's have a good look at this chunk... */ ++ return yaffs_generic_obj_del(in); ++} + +- if (!tags.chunkUsed) { +- /* An unassigned chunk in the block. +- * If there are used chunks after this one, then +- * it is a chunk that was skipped due to failing the erased +- * check. Just skip it so that it can be deleted. +- * But, more typically, We get here when this is an unallocated +- * chunk and his means that either the block is empty or +- * this is the one being allocated from +- */ ++static int yaffs_del_link(yaffs_obj_t *in) ++{ ++ /* remove this hardlink from the list assocaited with the equivalent ++ * object ++ */ ++ ylist_del_init(&in->hard_links); ++ return yaffs_generic_obj_del(in); ++} + +- if (foundChunksInBlock) { +- /* This is a chunk that was skipped due to failing the erased check */ +- } else if (c == 0) { +- /* We're looking at the first chunk in the block so the block is unused */ +- state = YAFFS_BLOCK_STATE_EMPTY; +- dev->nErasedBlocks++; +- } else { +- if (state == YAFFS_BLOCK_STATE_NEEDS_SCANNING || +- state == YAFFS_BLOCK_STATE_ALLOCATING) { +- if (dev->sequenceNumber == bi->sequenceNumber) { +- /* this is the block being allocated from */ +- +- T(YAFFS_TRACE_SCAN, +- (TSTR +- (" Allocating from %d %d" +- TENDSTR), blk, c)); +- +- state = YAFFS_BLOCK_STATE_ALLOCATING; +- dev->allocationBlock = blk; +- dev->allocationPage = c; +- dev->allocationBlockFinder = blk; +- } else { +- /* This is a partially written block that is not +- * the current allocation block. This block must have +- * had a write failure, so set up for retirement. +- */ +- +- /* bi->needsRetiring = 1; ??? TODO */ +- bi->gcPrioritise = 1; +- +- T(YAFFS_TRACE_ALWAYS, +- (TSTR("Partially written block %d detected" TENDSTR), +- blk)); +- } +- } +- } ++int yaffs_del_obj(yaffs_obj_t *obj) ++{ ++int retVal = -1; ++ switch (obj->variant_type) { ++ case YAFFS_OBJECT_TYPE_FILE: ++ retVal = yaffs_del_file(obj); ++ break; ++ case YAFFS_OBJECT_TYPE_DIRECTORY: ++ if(!ylist_empty(&obj->variant.dir_variant.dirty)){ ++ T(YAFFS_TRACE_BACKGROUND, (TSTR("Remove object %d from dirty directories" TENDSTR),obj->obj_id)); ++ ylist_del_init(&obj->variant.dir_variant.dirty); ++ } ++ return yaffs_del_dir(obj); ++ break; ++ case YAFFS_OBJECT_TYPE_SYMLINK: ++ retVal = yaffs_del_symlink(obj); ++ break; ++ case YAFFS_OBJECT_TYPE_HARDLINK: ++ retVal = yaffs_del_link(obj); ++ break; ++ case YAFFS_OBJECT_TYPE_SPECIAL: ++ retVal = yaffs_generic_obj_del(obj); ++ break; ++ case YAFFS_OBJECT_TYPE_UNKNOWN: ++ retVal = 0; ++ break; /* should not happen. */ ++ } + +- dev->nFreeChunks++; ++ return retVal; ++} + +- } else if (tags.eccResult == YAFFS_ECC_RESULT_UNFIXED) { +- T(YAFFS_TRACE_SCAN, +- (TSTR(" Unfixed ECC in chunk(%d:%d), chunk ignored"TENDSTR), +- blk, c)); +- +- dev->nFreeChunks++; +- +- } else if (tags.chunkId > 0) { +- /* chunkId > 0 so it is a data chunk... */ +- unsigned int endpos; +- __u32 chunkBase = +- (tags.chunkId - 1) * dev->nDataBytesPerChunk; +- +- foundChunksInBlock = 1; +- +- +- yaffs_SetChunkBit(dev, blk, c); +- bi->pagesInUse++; +- +- in = yaffs_FindOrCreateObjectByNumber(dev, +- tags. +- objectId, +- YAFFS_OBJECT_TYPE_FILE); +- if (!in) { +- /* Out of memory */ +- alloc_failed = 1; +- } ++static int yaffs_unlink_worker(yaffs_obj_t *obj) ++{ + +- if (in && +- in->variantType == YAFFS_OBJECT_TYPE_FILE +- && chunkBase < +- in->variant.fileVariant.shrinkSize) { +- /* This has not been invalidated by a resize */ +- if (!yaffs_PutChunkIntoFile(in, tags.chunkId, +- chunk, -1)) { +- alloc_failed = 1; +- } ++ int immediateDeletion = 0; + +- /* File size is calculated by looking at the data chunks if we have not +- * seen an object header yet. Stop this practice once we find an object header. +- */ +- endpos = +- (tags.chunkId - +- 1) * dev->nDataBytesPerChunk + +- tags.byteCount; +- +- if (!in->valid && /* have not got an object header yet */ +- in->variant.fileVariant. +- scannedFileSize < endpos) { +- in->variant.fileVariant. +- scannedFileSize = endpos; +- in->variant.fileVariant. +- fileSize = +- in->variant.fileVariant. +- scannedFileSize; +- } ++ if (!obj->my_inode) ++ immediateDeletion = 1; + +- } else if (in) { +- /* This chunk has been invalidated by a resize, so delete */ +- yaffs_DeleteChunk(dev, chunk, 1, __LINE__); ++ if(obj) ++ yaffs_update_parent(obj->parent); + +- } +- } else { +- /* chunkId == 0, so it is an ObjectHeader. +- * Thus, we read in the object header and make the object +- */ +- foundChunksInBlock = 1; ++ if (obj->variant_type == YAFFS_OBJECT_TYPE_HARDLINK) { ++ return yaffs_del_link(obj); ++ } else if (!ylist_empty(&obj->hard_links)) { ++ /* Curve ball: We're unlinking an object that has a hardlink. ++ * ++ * This problem arises because we are not strictly following ++ * The Linux link/inode model. ++ * ++ * We can't really delete the object. ++ * Instead, we do the following: ++ * - Select a hardlink. ++ * - Unhook it from the hard links ++ * - Move it from its parent directory (so that the rename can work) ++ * - Rename the object to the hardlink's name. ++ * - Delete the hardlink ++ */ + +- yaffs_SetChunkBit(dev, blk, c); +- bi->pagesInUse++; ++ yaffs_obj_t *hl; ++ yaffs_obj_t *parent; ++ int retVal; ++ YCHAR name[YAFFS_MAX_NAME_LENGTH + 1]; + +- oh = NULL; +- in = NULL; ++ hl = ylist_entry(obj->hard_links.next, yaffs_obj_t, hard_links); + +- if (tags.extraHeaderInfoAvailable) { +- in = yaffs_FindOrCreateObjectByNumber +- (dev, tags.objectId, +- tags.extraObjectType); +- if (!in) +- alloc_failed = 1; +- } ++ yaffs_get_obj_name(hl, name, YAFFS_MAX_NAME_LENGTH + 1); ++ parent = hl->parent; + +- if (!in || +-#ifdef CONFIG_YAFFS_DISABLE_LAZY_LOAD +- !in->valid || +-#endif +- tags.extraShadows || +- (!in->valid && +- (tags.objectId == YAFFS_OBJECTID_ROOT || +- tags.objectId == YAFFS_OBJECTID_LOSTNFOUND))) { +- +- /* If we don't have valid info then we need to read the chunk +- * TODO In future we can probably defer reading the chunk and +- * living with invalid data until needed. +- */ ++ ylist_del_init(&hl->hard_links); + +- result = yaffs_ReadChunkWithTagsFromNAND(dev, +- chunk, +- chunkData, +- NULL); +- +- oh = (yaffs_ObjectHeader *) chunkData; +- +- if (dev->inbandTags) { +- /* Fix up the header if they got corrupted by inband tags */ +- oh->shadowsObject = oh->inbandShadowsObject; +- oh->isShrink = oh->inbandIsShrink; +- } ++ yaffs_add_obj_to_dir(obj->my_dev->unlinked_dir, hl); + +- if (!in) { +- in = yaffs_FindOrCreateObjectByNumber(dev, tags.objectId, oh->type); +- if (!in) +- alloc_failed = 1; +- } ++ retVal = yaffs_change_obj_name(obj,parent, name, 0, 0); + +- } ++ if (retVal == YAFFS_OK) ++ retVal = yaffs_generic_obj_del(hl); + +- if (!in) { +- /* TODO Hoosterman we have a problem! */ +- T(YAFFS_TRACE_ERROR, +- (TSTR +- ("yaffs tragedy: Could not make object for object %d at chunk %d during scan" +- TENDSTR), tags.objectId, chunk)); +- continue; +- } ++ return retVal; + +- if (in->valid) { +- /* We have already filled this one. +- * We have a duplicate that will be discarded, but +- * we first have to suck out resize info if it is a file. +- */ ++ } else if (immediateDeletion) { ++ switch (obj->variant_type) { ++ case YAFFS_OBJECT_TYPE_FILE: ++ return yaffs_del_file(obj); ++ break; ++ case YAFFS_OBJECT_TYPE_DIRECTORY: ++ ylist_del_init(&obj->variant.dir_variant.dirty); ++ return yaffs_del_dir(obj); ++ break; ++ case YAFFS_OBJECT_TYPE_SYMLINK: ++ return yaffs_del_symlink(obj); ++ break; ++ case YAFFS_OBJECT_TYPE_SPECIAL: ++ return yaffs_generic_obj_del(obj); ++ break; ++ case YAFFS_OBJECT_TYPE_HARDLINK: ++ case YAFFS_OBJECT_TYPE_UNKNOWN: ++ default: ++ return YAFFS_FAIL; ++ } ++ } else if(yaffs_is_non_empty_dir(obj)) ++ return YAFFS_FAIL; ++ else ++ return yaffs_change_obj_name(obj, obj->my_dev->unlinked_dir, ++ _Y("unlinked"), 0, 0); ++} + +- if ((in->variantType == YAFFS_OBJECT_TYPE_FILE) && +- ((oh && +- oh->type == YAFFS_OBJECT_TYPE_FILE) || +- (tags.extraHeaderInfoAvailable && +- tags.extraObjectType == YAFFS_OBJECT_TYPE_FILE))) { +- __u32 thisSize = +- (oh) ? oh->fileSize : tags. +- extraFileLength; +- __u32 parentObjectId = +- (oh) ? oh-> +- parentObjectId : tags. +- extraParentObjectId; +- +- +- isShrink = +- (oh) ? oh->isShrink : tags. +- extraIsShrinkHeader; + +- /* If it is deleted (unlinked at start also means deleted) +- * we treat the file size as being zeroed at this point. +- */ +- if (parentObjectId == +- YAFFS_OBJECTID_DELETED +- || parentObjectId == +- YAFFS_OBJECTID_UNLINKED) { +- thisSize = 0; +- isShrink = 1; +- } ++static int yaffs_unlink_obj(yaffs_obj_t *obj) ++{ + +- if (isShrink && +- in->variant.fileVariant. +- shrinkSize > thisSize) { +- in->variant.fileVariant. +- shrinkSize = +- thisSize; +- } ++ if (obj && obj->unlink_allowed) ++ return yaffs_unlink_worker(obj); + +- if (isShrink) +- bi->hasShrinkHeader = 1; ++ return YAFFS_FAIL; + +- } +- /* Use existing - destroy this one. */ +- yaffs_DeleteChunk(dev, chunk, 1, __LINE__); ++} ++int yaffs_unlinker(yaffs_obj_t *dir, const YCHAR *name) ++{ ++ yaffs_obj_t *obj; + +- } ++ obj = yaffs_find_by_name(dir, name); ++ return yaffs_unlink_obj(obj); ++} + +- if (!in->valid && in->variantType != +- (oh ? oh->type : tags.extraObjectType)) +- T(YAFFS_TRACE_ERROR, ( +- TSTR("yaffs tragedy: Bad object type, " +- TCONT("%d != %d, for object %d at chunk ") +- TCONT("%d during scan") +- TENDSTR), oh ? +- oh->type : tags.extraObjectType, +- in->variantType, tags.objectId, +- chunk)); +- +- if (!in->valid && +- (tags.objectId == YAFFS_OBJECTID_ROOT || +- tags.objectId == +- YAFFS_OBJECTID_LOSTNFOUND)) { +- /* We only load some info, don't fiddle with directory structure */ +- in->valid = 1; ++/*----------------------- Initialisation Scanning ---------------------- */ + +- if (oh) { +- in->variantType = oh->type; ++void yaffs_handle_shadowed_obj(yaffs_dev_t *dev, int obj_id, ++ int backward_scanning) ++{ ++ yaffs_obj_t *obj; + +- in->yst_mode = oh->yst_mode; +-#ifdef CONFIG_YAFFS_WINCE +- in->win_atime[0] = oh->win_atime[0]; +- in->win_ctime[0] = oh->win_ctime[0]; +- in->win_mtime[0] = oh->win_mtime[0]; +- in->win_atime[1] = oh->win_atime[1]; +- in->win_ctime[1] = oh->win_ctime[1]; +- in->win_mtime[1] = oh->win_mtime[1]; +-#else +- in->yst_uid = oh->yst_uid; +- in->yst_gid = oh->yst_gid; +- in->yst_atime = oh->yst_atime; +- in->yst_mtime = oh->yst_mtime; +- in->yst_ctime = oh->yst_ctime; +- in->yst_rdev = oh->yst_rdev; ++ if (!backward_scanning) { ++ /* Handle YAFFS1 forward scanning case ++ * For YAFFS1 we always do the deletion ++ */ + +-#endif +- } else { +- in->variantType = tags.extraObjectType; +- in->lazyLoaded = 1; +- } ++ } else { ++ /* Handle YAFFS2 case (backward scanning) ++ * If the shadowed object exists then ignore. ++ */ ++ obj = yaffs_find_by_number(dev, obj_id); ++ if(obj) ++ return; ++ } + +- in->hdrChunk = chunk; ++ /* Let's create it (if it does not exist) assuming it is a file so that it can do shrinking etc. ++ * We put it in unlinked dir to be cleaned up after the scanning ++ */ ++ obj = ++ yaffs_find_or_create_by_number(dev, obj_id, ++ YAFFS_OBJECT_TYPE_FILE); ++ if (!obj) ++ return; ++ obj->is_shadowed = 1; ++ yaffs_add_obj_to_dir(dev->unlinked_dir, obj); ++ obj->variant.file_variant.shrink_size = 0; ++ obj->valid = 1; /* So that we don't read any other info for this file */ + +- } else if (!in->valid) { +- /* we need to load this info */ ++} + +- in->valid = 1; +- in->hdrChunk = chunk; + +- if (oh) { +- in->variantType = oh->type; ++void yaffs_link_fixup(yaffs_dev_t *dev, yaffs_obj_t *hard_list) ++{ ++ yaffs_obj_t *hl; ++ yaffs_obj_t *in; + +- in->yst_mode = oh->yst_mode; +-#ifdef CONFIG_YAFFS_WINCE +- in->win_atime[0] = oh->win_atime[0]; +- in->win_ctime[0] = oh->win_ctime[0]; +- in->win_mtime[0] = oh->win_mtime[0]; +- in->win_atime[1] = oh->win_atime[1]; +- in->win_ctime[1] = oh->win_ctime[1]; +- in->win_mtime[1] = oh->win_mtime[1]; +-#else +- in->yst_uid = oh->yst_uid; +- in->yst_gid = oh->yst_gid; +- in->yst_atime = oh->yst_atime; +- in->yst_mtime = oh->yst_mtime; +- in->yst_ctime = oh->yst_ctime; +- in->yst_rdev = oh->yst_rdev; +-#endif ++ while (hard_list) { ++ hl = hard_list; ++ hard_list = (yaffs_obj_t *) (hard_list->hard_links.next); ++ ++ in = yaffs_find_by_number(dev, ++ hl->variant.hardlink_variant. ++ equiv_id); + +- if (oh->shadowsObject > 0) +- yaffs_HandleShadowedObject(dev, +- oh-> +- shadowsObject, +- 1); +- +- +- yaffs_SetObjectName(in, oh->name); +- parent = +- yaffs_FindOrCreateObjectByNumber +- (dev, oh->parentObjectId, +- YAFFS_OBJECT_TYPE_DIRECTORY); +- +- fileSize = oh->fileSize; +- isShrink = oh->isShrink; +- equivalentObjectId = oh->equivalentObjectId; ++ if (in) { ++ /* Add the hardlink pointers */ ++ hl->variant.hardlink_variant.equiv_obj = in; ++ ylist_add(&hl->hard_links, &in->hard_links); ++ } else { ++ /* Todo Need to report/handle this better. ++ * Got a problem... hardlink to a non-existant object ++ */ ++ hl->variant.hardlink_variant.equiv_obj = NULL; ++ YINIT_LIST_HEAD(&hl->hard_links); + +- } else { +- in->variantType = tags.extraObjectType; +- parent = +- yaffs_FindOrCreateObjectByNumber +- (dev, tags.extraParentObjectId, +- YAFFS_OBJECT_TYPE_DIRECTORY); +- fileSize = tags.extraFileLength; +- isShrink = tags.extraIsShrinkHeader; +- equivalentObjectId = tags.extraEquivalentObjectId; +- in->lazyLoaded = 1; ++ } ++ } ++} + +- } +- in->dirty = 0; + +- if (!parent) +- alloc_failed = 1; ++static void yaffs_strip_deleted_objs(yaffs_dev_t *dev) ++{ ++ /* ++ * Sort out state of unlinked and deleted objects after scanning. ++ */ ++ struct ylist_head *i; ++ struct ylist_head *n; ++ yaffs_obj_t *l; + +- /* directory stuff... +- * hook up to parent +- */ ++ if (dev->read_only) ++ return; + +- if (parent && parent->variantType == +- YAFFS_OBJECT_TYPE_UNKNOWN) { +- /* Set up as a directory */ +- parent->variantType = +- YAFFS_OBJECT_TYPE_DIRECTORY; +- YINIT_LIST_HEAD(&parent->variant. +- directoryVariant. +- children); +- } else if (!parent || parent->variantType != +- YAFFS_OBJECT_TYPE_DIRECTORY) { +- /* Hoosterman, another problem.... +- * We're trying to use a non-directory as a directory +- */ ++ /* Soft delete all the unlinked files */ ++ ylist_for_each_safe(i, n, ++ &dev->unlinked_dir->variant.dir_variant.children) { ++ if (i) { ++ l = ylist_entry(i, yaffs_obj_t, siblings); ++ yaffs_del_obj(l); ++ } ++ } + +- T(YAFFS_TRACE_ERROR, +- (TSTR +- ("yaffs tragedy: attempting to use non-directory as a directory in scan. Put in lost+found." +- TENDSTR))); +- parent = dev->lostNFoundDir; +- } ++ ylist_for_each_safe(i, n, ++ &dev->del_dir->variant.dir_variant.children) { ++ if (i) { ++ l = ylist_entry(i, yaffs_obj_t, siblings); ++ yaffs_del_obj(l); ++ } ++ } + +- yaffs_AddObjectToDirectory(parent, in); ++} + +- itsUnlinked = (parent == dev->deletedDir) || +- (parent == dev->unlinkedDir); ++/* ++ * This code iterates through all the objects making sure that they are rooted. ++ * Any unrooted objects are re-rooted in lost+found. ++ * An object needs to be in one of: ++ * - Directly under deleted, unlinked ++ * - Directly or indirectly under root. ++ * ++ * Note: ++ * This code assumes that we don't ever change the current relationships between ++ * directories: ++ * root_dir->parent == unlinked_dir->parent == del_dir->parent == NULL ++ * lostNfound->parent == root_dir ++ * ++ * This fixes the problem where directories might have inadvertently been deleted ++ * leaving the object "hanging" without being rooted in the directory tree. ++ */ ++ ++static int yaffs_has_null_parent(yaffs_dev_t *dev, yaffs_obj_t *obj) ++{ ++ return (obj == dev->del_dir || ++ obj == dev->unlinked_dir|| ++ obj == dev->root_dir); ++} + +- if (isShrink) { +- /* Mark the block as having a shrinkHeader */ +- bi->hasShrinkHeader = 1; +- } ++static void yaffs_fix_hanging_objs(yaffs_dev_t *dev) ++{ ++ yaffs_obj_t *obj; ++ yaffs_obj_t *parent; ++ int i; ++ struct ylist_head *lh; ++ struct ylist_head *n; ++ int depthLimit; ++ int hanging; + +- /* Note re hardlinks. +- * Since we might scan a hardlink before its equivalent object is scanned +- * we put them all in a list. +- * After scanning is complete, we should have all the objects, so we run +- * through this list and fix up all the chains. +- */ ++ if (dev->read_only) ++ return; + +- switch (in->variantType) { +- case YAFFS_OBJECT_TYPE_UNKNOWN: +- /* Todo got a problem */ +- break; +- case YAFFS_OBJECT_TYPE_FILE: +- +- if (in->variant.fileVariant. +- scannedFileSize < fileSize) { +- /* This covers the case where the file size is greater +- * than where the data is +- * This will happen if the file is resized to be larger +- * than its current data extents. +- */ +- in->variant.fileVariant.fileSize = fileSize; +- in->variant.fileVariant.scannedFileSize = +- in->variant.fileVariant.fileSize; +- } ++ /* Iterate through the objects in each hash entry, ++ * looking at each object. ++ * Make sure it is rooted. ++ */ + +- if (isShrink && +- in->variant.fileVariant.shrinkSize > fileSize) { +- in->variant.fileVariant.shrinkSize = fileSize; +- } ++ for (i = 0; i < YAFFS_NOBJECT_BUCKETS; i++) { ++ ylist_for_each_safe(lh, n, &dev->obj_bucket[i].list) { ++ if (lh) { ++ obj = ylist_entry(lh, yaffs_obj_t, hash_link); ++ parent= obj->parent; ++ ++ if(yaffs_has_null_parent(dev,obj)){ ++ /* These directories are not hanging */ ++ hanging = 0; ++ } ++ else if(!parent || parent->variant_type != YAFFS_OBJECT_TYPE_DIRECTORY) ++ hanging = 1; ++ else if(yaffs_has_null_parent(dev,parent)) ++ hanging = 0; ++ else { ++ /* ++ * Need to follow the parent chain to see if it is hanging. ++ */ ++ hanging = 0; ++ depthLimit=100; + +- break; +- case YAFFS_OBJECT_TYPE_HARDLINK: +- if (!itsUnlinked) { +- in->variant.hardLinkVariant.equivalentObjectId = +- equivalentObjectId; +- in->hardLinks.next = +- (struct ylist_head *) hardList; +- hardList = in; +- } +- break; +- case YAFFS_OBJECT_TYPE_DIRECTORY: +- /* Do nothing */ +- break; +- case YAFFS_OBJECT_TYPE_SPECIAL: +- /* Do nothing */ +- break; +- case YAFFS_OBJECT_TYPE_SYMLINK: +- if (oh) { +- in->variant.symLinkVariant.alias = +- yaffs_CloneString(oh->alias); +- if (!in->variant.symLinkVariant.alias) +- alloc_failed = 1; +- } +- break; ++ while(parent != dev->root_dir && ++ parent->parent && ++ parent->parent->variant_type == YAFFS_OBJECT_TYPE_DIRECTORY && ++ depthLimit > 0){ ++ parent = parent->parent; ++ depthLimit--; + } +- ++ if(parent != dev->root_dir) ++ hanging = 1; ++ } ++ if(hanging){ ++ T(YAFFS_TRACE_SCAN, ++ (TSTR("Hanging object %d moved to lost and found" TENDSTR), ++ obj->obj_id)); ++ yaffs_add_obj_to_dir(dev->lost_n_found,obj); + } +- + } ++ } ++ } ++} + +- } /* End of scanning for each chunk */ + +- if (state == YAFFS_BLOCK_STATE_NEEDS_SCANNING) { +- /* If we got this far while scanning, then the block is fully allocated. */ +- state = YAFFS_BLOCK_STATE_FULL; +- } ++/* ++ * Delete directory contents for cleaning up lost and found. ++ */ ++static void yaffs_del_dir_contents(yaffs_obj_t *dir) ++{ ++ yaffs_obj_t *obj; ++ struct ylist_head *lh; ++ struct ylist_head *n; + +- bi->blockState = state; ++ if(dir->variant_type != YAFFS_OBJECT_TYPE_DIRECTORY) ++ YBUG(); ++ ++ ylist_for_each_safe(lh, n, &dir->variant.dir_variant.children) { ++ if (lh) { ++ obj = ylist_entry(lh, yaffs_obj_t, siblings); ++ if(obj->variant_type == YAFFS_OBJECT_TYPE_DIRECTORY) ++ yaffs_del_dir_contents(obj); ++ ++ T(YAFFS_TRACE_SCAN, ++ (TSTR("Deleting lost_found object %d" TENDSTR), ++ obj->obj_id)); + +- /* Now let's see if it was dirty */ +- if (bi->pagesInUse == 0 && +- !bi->hasShrinkHeader && +- bi->blockState == YAFFS_BLOCK_STATE_FULL) { +- yaffs_BlockBecameDirty(dev, blk); ++ /* Need to use UnlinkObject since Delete would not handle ++ * hardlinked objects correctly. ++ */ ++ yaffs_unlink_obj(obj); + } +- + } ++ ++} + +- if (altBlockIndex) +- YFREE_ALT(blockIndex); +- else +- YFREE(blockIndex); ++static void yaffs_empty_l_n_f(yaffs_dev_t *dev) ++{ ++ yaffs_del_dir_contents(dev->lost_n_found); ++} + +- /* Ok, we've done all the scanning. +- * Fix up the hard link chains. +- * We should now have scanned all the objects, now it's time to add these +- * hardlinks. +- */ +- yaffs_HardlinkFixup(dev, hardList); ++static void yaffs_check_obj_details_loaded(yaffs_obj_t *in) ++{ ++ __u8 *chunkData; ++ yaffs_obj_header *oh; ++ yaffs_dev_t *dev; ++ yaffs_ext_tags tags; ++ int result; ++ int alloc_failed = 0; + ++ if (!in) ++ return; + +- yaffs_ReleaseTempBuffer(dev, chunkData, __LINE__); ++ dev = in->my_dev; + +- if (alloc_failed) +- return YAFFS_FAIL; ++#if 0 ++ T(YAFFS_TRACE_SCAN, (TSTR("details for object %d %s loaded" TENDSTR), ++ in->obj_id, ++ in->lazy_loaded ? "not yet" : "already")); ++#endif + +- T(YAFFS_TRACE_SCAN, (TSTR("yaffs_ScanBackwards ends" TENDSTR))); ++ if (in->lazy_loaded && in->hdr_chunk > 0) { ++ in->lazy_loaded = 0; ++ chunkData = yaffs_get_temp_buffer(dev, __LINE__); + +- return YAFFS_OK; +-} ++ result = yaffs_rd_chunk_tags_nand(dev, in->hdr_chunk, chunkData, &tags); ++ oh = (yaffs_obj_header *) chunkData; + +-/*------------------------------ Directory Functions ----------------------------- */ ++ in->yst_mode = oh->yst_mode; ++#ifdef CONFIG_YAFFS_WINCE ++ in->win_atime[0] = oh->win_atime[0]; ++ in->win_ctime[0] = oh->win_ctime[0]; ++ in->win_mtime[0] = oh->win_mtime[0]; ++ in->win_atime[1] = oh->win_atime[1]; ++ in->win_ctime[1] = oh->win_ctime[1]; ++ in->win_mtime[1] = oh->win_mtime[1]; ++#else ++ in->yst_uid = oh->yst_uid; ++ in->yst_gid = oh->yst_gid; ++ in->yst_atime = oh->yst_atime; ++ in->yst_mtime = oh->yst_mtime; ++ in->yst_ctime = oh->yst_ctime; ++ in->yst_rdev = oh->yst_rdev; + +-static void yaffs_VerifyObjectInDirectory(yaffs_Object *obj) +-{ +- struct ylist_head *lh; +- yaffs_Object *listObj; ++#endif ++ yaffs_set_obj_name_from_oh(in, oh); + +- int count = 0; ++ if (in->variant_type == YAFFS_OBJECT_TYPE_SYMLINK) { ++ in->variant.symlink_variant.alias = ++ yaffs_clone_str(oh->alias); ++ if (!in->variant.symlink_variant.alias) ++ alloc_failed = 1; /* Not returned to caller */ ++ } + +- if (!obj) { +- T(YAFFS_TRACE_ALWAYS, (TSTR("No object to verify" TENDSTR))); +- YBUG(); +- return; ++ yaffs_release_temp_buffer(dev, chunkData, __LINE__); + } ++} + +- if (yaffs_SkipVerification(obj->myDev)) +- return; ++/*------------------------------ Directory Functions ----------------------------- */ + +- if (!obj->parent) { +- T(YAFFS_TRACE_ALWAYS, (TSTR("Object does not have parent" TENDSTR))); +- YBUG(); ++/* ++ *yaffs_update_parent() handles fixing a directories mtime and ctime when a new ++ * link (ie. name) is created or deleted in the directory. ++ * ++ * ie. ++ * create dir/a : update dir's mtime/ctime ++ * rm dir/a: update dir's mtime/ctime ++ * modify dir/a: don't update dir's mtimme/ctime ++ * ++ * This can be handled immediately or defered. Defering helps reduce the number ++ * of updates when many files in a directory are changed within a brief period. ++ * ++ * If the directory updating is defered then yaffs_update_dirty_dirs must be ++ * called periodically. ++ */ ++ ++static void yaffs_update_parent(yaffs_obj_t *obj) ++{ ++ yaffs_dev_t *dev; ++ if(!obj) + return; +- } +- +- if (obj->parent->variantType != YAFFS_OBJECT_TYPE_DIRECTORY) { +- T(YAFFS_TRACE_ALWAYS, (TSTR("Parent is not directory" TENDSTR))); +- YBUG(); +- } +- +- /* Iterate through the objects in each hash entry */ ++#ifndef CONFIG_YAFFS_WINCE + +- ylist_for_each(lh, &obj->parent->variant.directoryVariant.children) { +- if (lh) { +- listObj = ylist_entry(lh, yaffs_Object, siblings); +- yaffs_VerifyObject(listObj); +- if (obj == listObj) +- count++; ++ dev = obj->my_dev; ++ obj->dirty = 1; ++ obj->yst_mtime = obj->yst_ctime = Y_CURRENT_TIME; ++ if(dev->param.defered_dir_update){ ++ struct ylist_head *link = &obj->variant.dir_variant.dirty; ++ ++ if(ylist_empty(link)){ ++ ylist_add(link,&dev->dirty_dirs); ++ T(YAFFS_TRACE_BACKGROUND, (TSTR("Added object %d to dirty directories" TENDSTR),obj->obj_id)); + } +- } + +- if (count != 1) { +- T(YAFFS_TRACE_ALWAYS, (TSTR("Object in directory %d times" TENDSTR), count)); +- YBUG(); +- } ++ } else ++ yaffs_update_oh(obj, NULL, 0, 0, 0, NULL); ++#endif + } + +-static void yaffs_VerifyDirectory(yaffs_Object *directory) ++void yaffs_update_dirty_dirs(yaffs_dev_t *dev) + { +- struct ylist_head *lh; +- yaffs_Object *listObj; +- +- if (!directory) { +- YBUG(); +- return; +- } ++ struct ylist_head *link; ++ yaffs_obj_t *obj; ++ yaffs_dir_s *dS; ++ yaffs_obj_variant *oV; + +- if (yaffs_SkipFullVerification(directory->myDev)) +- return; ++ T(YAFFS_TRACE_BACKGROUND, (TSTR("Update dirty directories" TENDSTR))); + +- if (directory->variantType != YAFFS_OBJECT_TYPE_DIRECTORY) { +- T(YAFFS_TRACE_ALWAYS, (TSTR("Directory has wrong type: %d" TENDSTR), directory->variantType)); +- YBUG(); +- } ++ while(!ylist_empty(&dev->dirty_dirs)){ ++ link = dev->dirty_dirs.next; ++ ylist_del_init(link); ++ ++ dS=ylist_entry(link,yaffs_dir_s,dirty); ++ oV = ylist_entry(dS,yaffs_obj_variant,dir_variant); ++ obj = ylist_entry(oV,yaffs_obj_t,variant); + +- /* Iterate through the objects in each hash entry */ ++ T(YAFFS_TRACE_BACKGROUND, (TSTR("Update directory %d" TENDSTR), obj->obj_id)); + +- ylist_for_each(lh, &directory->variant.directoryVariant.children) { +- if (lh) { +- listObj = ylist_entry(lh, yaffs_Object, siblings); +- if (listObj->parent != directory) { +- T(YAFFS_TRACE_ALWAYS, (TSTR("Object in directory list has wrong parent %p" TENDSTR), listObj->parent)); +- YBUG(); +- } +- yaffs_VerifyObjectInDirectory(listObj); +- } ++ if(obj->dirty) ++ yaffs_update_oh(obj, NULL, 0, 0, 0, NULL); + } + } + +- +-static void yaffs_RemoveObjectFromDirectory(yaffs_Object *obj) ++static void yaffs_remove_obj_from_dir(yaffs_obj_t *obj) + { +- yaffs_Device *dev = obj->myDev; +- yaffs_Object *parent; ++ yaffs_dev_t *dev = obj->my_dev; ++ yaffs_obj_t *parent; + +- yaffs_VerifyObjectInDirectory(obj); ++ yaffs_verify_obj_in_dir(obj); + parent = obj->parent; + +- yaffs_VerifyDirectory(parent); ++ yaffs_verify_dir(parent); + +- if (dev && dev->removeObjectCallback) +- dev->removeObjectCallback(obj); ++ if (dev && dev->param.remove_obj_fn) ++ dev->param.remove_obj_fn(obj); + + + ylist_del_init(&obj->siblings); + obj->parent = NULL; +- +- yaffs_VerifyDirectory(parent); ++ ++ yaffs_verify_dir(parent); + } + +- +-static void yaffs_AddObjectToDirectory(yaffs_Object *directory, +- yaffs_Object *obj) ++void yaffs_add_obj_to_dir(yaffs_obj_t *directory, ++ yaffs_obj_t *obj) + { + if (!directory) { + T(YAFFS_TRACE_ALWAYS, +@@ -6699,7 +4495,7 @@ static void yaffs_AddObjectToDirectory(y + YBUG(); + return; + } +- if (directory->variantType != YAFFS_OBJECT_TYPE_DIRECTORY) { ++ if (directory->variant_type != YAFFS_OBJECT_TYPE_DIRECTORY) { + T(YAFFS_TRACE_ALWAYS, + (TSTR + ("tragedy: Trying to add an object to a non-directory" +@@ -6713,27 +4509,27 @@ static void yaffs_AddObjectToDirectory(y + } + + +- yaffs_VerifyDirectory(directory); ++ yaffs_verify_dir(directory); + +- yaffs_RemoveObjectFromDirectory(obj); ++ yaffs_remove_obj_from_dir(obj); + + + /* Now add it */ +- ylist_add(&obj->siblings, &directory->variant.directoryVariant.children); ++ ylist_add(&obj->siblings, &directory->variant.dir_variant.children); + obj->parent = directory; + +- if (directory == obj->myDev->unlinkedDir +- || directory == obj->myDev->deletedDir) { ++ if (directory == obj->my_dev->unlinked_dir ++ || directory == obj->my_dev->del_dir) { + obj->unlinked = 1; +- obj->myDev->nUnlinkedFiles++; +- obj->renameAllowed = 0; ++ obj->my_dev->n_unlinked_files++; ++ obj->rename_allowed = 0; + } + +- yaffs_VerifyDirectory(directory); +- yaffs_VerifyObjectInDirectory(obj); ++ yaffs_verify_dir(directory); ++ yaffs_verify_obj_in_dir(obj); + } + +-yaffs_Object *yaffs_FindObjectByName(yaffs_Object *directory, ++yaffs_obj_t *yaffs_find_by_name(yaffs_obj_t *directory, + const YCHAR *name) + { + int sum; +@@ -6741,7 +4537,7 @@ yaffs_Object *yaffs_FindObjectByName(yaf + struct ylist_head *i; + YCHAR buffer[YAFFS_MAX_NAME_LENGTH + 1]; + +- yaffs_Object *l; ++ yaffs_obj_t *l; + + if (!name) + return NULL; +@@ -6749,39 +4545,39 @@ yaffs_Object *yaffs_FindObjectByName(yaf + if (!directory) { + T(YAFFS_TRACE_ALWAYS, + (TSTR +- ("tragedy: yaffs_FindObjectByName: null pointer directory" ++ ("tragedy: yaffs_find_by_name: null pointer directory" + TENDSTR))); + YBUG(); + return NULL; + } +- if (directory->variantType != YAFFS_OBJECT_TYPE_DIRECTORY) { ++ if (directory->variant_type != YAFFS_OBJECT_TYPE_DIRECTORY) { + T(YAFFS_TRACE_ALWAYS, + (TSTR +- ("tragedy: yaffs_FindObjectByName: non-directory" TENDSTR))); ++ ("tragedy: yaffs_find_by_name: non-directory" TENDSTR))); + YBUG(); + } + +- sum = yaffs_CalcNameSum(name); ++ sum = yaffs_calc_name_sum(name); + +- ylist_for_each(i, &directory->variant.directoryVariant.children) { ++ ylist_for_each(i, &directory->variant.dir_variant.children) { + if (i) { +- l = ylist_entry(i, yaffs_Object, siblings); ++ l = ylist_entry(i, yaffs_obj_t, siblings); + + if (l->parent != directory) + YBUG(); + +- yaffs_CheckObjectDetailsLoaded(l); ++ yaffs_check_obj_details_loaded(l); + + /* Special case for lost-n-found */ +- if (l->objectId == YAFFS_OBJECTID_LOSTNFOUND) { ++ if (l->obj_id == YAFFS_OBJECTID_LOSTNFOUND) { + if (yaffs_strcmp(name, YAFFS_LOSTNFOUND_NAME) == 0) + return l; +- } else if (yaffs_SumCompare(l->sum, sum) || l->hdrChunk <= 0) { ++ } else if (yaffs_sum_cmp(l->sum, sum) || l->hdr_chunk <= 0) { + /* LostnFound chunk called Objxxx + * Do a real check + */ +- yaffs_GetObjectName(l, buffer, +- YAFFS_MAX_NAME_LENGTH); ++ yaffs_get_obj_name(l, buffer, ++ YAFFS_MAX_NAME_LENGTH + 1); + if (yaffs_strncmp(name, buffer, YAFFS_MAX_NAME_LENGTH) == 0) + return l; + } +@@ -6793,31 +4589,31 @@ yaffs_Object *yaffs_FindObjectByName(yaf + + + #if 0 +-int yaffs_ApplyToDirectoryChildren(yaffs_Object *theDir, +- int (*fn) (yaffs_Object *)) ++int yaffs_ApplyToDirectoryChildren(yaffs_obj_t *the_dir, ++ int (*fn) (yaffs_obj_t *)) + { + struct ylist_head *i; +- yaffs_Object *l; ++ yaffs_obj_t *l; + +- if (!theDir) { ++ if (!the_dir) { + T(YAFFS_TRACE_ALWAYS, + (TSTR +- ("tragedy: yaffs_FindObjectByName: null pointer directory" ++ ("tragedy: yaffs_find_by_name: null pointer directory" + TENDSTR))); + YBUG(); + return YAFFS_FAIL; + } +- if (theDir->variantType != YAFFS_OBJECT_TYPE_DIRECTORY) { ++ if (the_dir->variant_type != YAFFS_OBJECT_TYPE_DIRECTORY) { + T(YAFFS_TRACE_ALWAYS, + (TSTR +- ("tragedy: yaffs_FindObjectByName: non-directory" TENDSTR))); ++ ("tragedy: yaffs_find_by_name: non-directory" TENDSTR))); + YBUG(); + return YAFFS_FAIL; + } + +- ylist_for_each(i, &theDir->variant.directoryVariant.children) { ++ ylist_for_each(i, &the_dir->variant.dir_variant.children) { + if (i) { +- l = ylist_entry(i, yaffs_Object, siblings); ++ l = ylist_entry(i, yaffs_obj_t, siblings); + if (l && !fn(l)) + return YAFFS_FAIL; + } +@@ -6832,82 +4628,175 @@ int yaffs_ApplyToDirectoryChildren(yaffs + * actual object. + */ + +-yaffs_Object *yaffs_GetEquivalentObject(yaffs_Object *obj) ++yaffs_obj_t *yaffs_get_equivalent_obj(yaffs_obj_t *obj) + { +- if (obj && obj->variantType == YAFFS_OBJECT_TYPE_HARDLINK) { ++ if (obj && obj->variant_type == YAFFS_OBJECT_TYPE_HARDLINK) { + /* We want the object id of the equivalent object, not this one */ +- obj = obj->variant.hardLinkVariant.equivalentObject; +- yaffs_CheckObjectDetailsLoaded(obj); ++ obj = obj->variant.hardlink_variant.equiv_obj; ++ yaffs_check_obj_details_loaded(obj); + } + return obj; + } + +-int yaffs_GetObjectName(yaffs_Object *obj, YCHAR *name, int buffSize) +-{ +- memset(name, 0, buffSize * sizeof(YCHAR)); +- +- yaffs_CheckObjectDetailsLoaded(obj); ++/* ++ * A note or two on object names. ++ * * If the object name is missing, we then make one up in the form objnnn ++ * ++ * * ASCII names are stored in the object header's name field from byte zero ++ * * Unicode names are historically stored starting from byte zero. ++ * ++ * Then there are automatic Unicode names... ++ * The purpose of these is to save names in a way that can be read as ++ * ASCII or Unicode names as appropriate, thus allowing a Unicode and ASCII ++ * system to share files. ++ * ++ * These automatic unicode are stored slightly differently... ++ * - If the name can fit in the ASCII character space then they are saved as ++ * ascii names as per above. ++ * - If the name needs Unicode then the name is saved in Unicode ++ * starting at oh->name[1]. + +- if (obj->objectId == YAFFS_OBJECTID_LOSTNFOUND) { +- yaffs_strncpy(name, YAFFS_LOSTNFOUND_NAME, buffSize - 1); +- } else if (obj->hdrChunk <= 0) { ++ */ ++static void yaffs_fix_null_name(yaffs_obj_t * obj,YCHAR * name, int buffer_size) ++{ ++ /* Create an object name if we could not find one. */ ++ if(yaffs_strnlen(name,YAFFS_MAX_NAME_LENGTH) == 0){ + YCHAR locName[20]; + YCHAR numString[20]; + YCHAR *x = &numString[19]; +- unsigned v = obj->objectId; ++ unsigned v = obj->obj_id; + numString[19] = 0; +- while (v > 0) { ++ while(v>0){ + x--; + *x = '0' + (v % 10); + v /= 10; + } + /* make up a name */ + yaffs_strcpy(locName, YAFFS_LOSTNFOUND_PREFIX); +- yaffs_strcat(locName, x); +- yaffs_strncpy(name, locName, buffSize - 1); ++ yaffs_strcat(locName,x); ++ yaffs_strncpy(name, locName, buffer_size - 1); ++ } ++} ++ ++static void yaffs_load_name_from_oh(yaffs_dev_t *dev,YCHAR *name, const YCHAR *ohName, int bufferSize) ++{ ++#ifdef CONFIG_YAFFS_AUTO_UNICODE ++ if(dev->param.auto_unicode){ ++ if(*ohName){ ++ /* It is an ASCII name, so do an ASCII to unicode conversion */ ++ const char *asciiOhName = (const char *)ohName; ++ int n = bufferSize - 1; ++ while(n > 0 && *asciiOhName){ ++ *name = *asciiOhName; ++ name++; ++ asciiOhName++; ++ n--; ++ } ++ } else ++ yaffs_strncpy(name,ohName+1, bufferSize -1); ++ } else ++#endif ++ yaffs_strncpy(name, ohName, bufferSize - 1); ++} ++ ++ ++static void yaffs_load_oh_from_name(yaffs_dev_t *dev, YCHAR *ohName, const YCHAR *name) ++{ ++#ifdef CONFIG_YAFFS_AUTO_UNICODE ++ ++ int isAscii; ++ YCHAR *w; ++ ++ if(dev->param.auto_unicode){ ++ ++ isAscii = 1; ++ w = name; ++ ++ /* Figure out if the name will fit in ascii character set */ ++ while(isAscii && *w){ ++ if((*w) & 0xff00) ++ isAscii = 0; ++ w++; ++ } + ++ if(isAscii){ ++ /* It is an ASCII name, so do a unicode to ascii conversion */ ++ char *asciiOhName = (char *)ohName; ++ int n = YAFFS_MAX_NAME_LENGTH - 1; ++ while(n > 0 && *name){ ++ *asciiOhName= *name; ++ name++; ++ asciiOhName++; ++ n--; ++ } ++ } else{ ++ /* It is a unicode name, so save starting at the second YCHAR */ ++ *ohName = 0; ++ yaffs_strncpy(ohName+1,name, YAFFS_MAX_NAME_LENGTH -2); ++ } + } ++ else ++#endif ++ yaffs_strncpy(ohName,name, YAFFS_MAX_NAME_LENGTH - 1); ++ ++} ++ ++int yaffs_get_obj_name(yaffs_obj_t * obj, YCHAR * name, int buffer_size) ++{ ++ memset(name, 0, buffer_size * sizeof(YCHAR)); ++ ++ yaffs_check_obj_details_loaded(obj); ++ ++ if (obj->obj_id == YAFFS_OBJECTID_LOSTNFOUND) { ++ yaffs_strncpy(name, YAFFS_LOSTNFOUND_NAME, buffer_size - 1); ++ } + #ifdef CONFIG_YAFFS_SHORT_NAMES_IN_RAM +- else if (obj->shortName[0]) +- yaffs_strcpy(name, obj->shortName); ++ else if (obj->short_name[0]) { ++ yaffs_strcpy(name, obj->short_name); ++ } + #endif +- else { ++ else if(obj->hdr_chunk > 0) { + int result; +- __u8 *buffer = yaffs_GetTempBuffer(obj->myDev, __LINE__); ++ __u8 *buffer = yaffs_get_temp_buffer(obj->my_dev, __LINE__); + +- yaffs_ObjectHeader *oh = (yaffs_ObjectHeader *) buffer; ++ yaffs_obj_header *oh = (yaffs_obj_header *) buffer; + +- memset(buffer, 0, obj->myDev->nDataBytesPerChunk); ++ memset(buffer, 0, obj->my_dev->data_bytes_per_chunk); + +- if (obj->hdrChunk > 0) { +- result = yaffs_ReadChunkWithTagsFromNAND(obj->myDev, +- obj->hdrChunk, buffer, ++ if (obj->hdr_chunk > 0) { ++ result = yaffs_rd_chunk_tags_nand(obj->my_dev, ++ obj->hdr_chunk, buffer, + NULL); + } +- yaffs_strncpy(name, oh->name, buffSize - 1); ++ yaffs_load_name_from_oh(obj->my_dev,name,oh->name,buffer_size); + +- yaffs_ReleaseTempBuffer(obj->myDev, buffer, __LINE__); ++ yaffs_release_temp_buffer(obj->my_dev, buffer, __LINE__); + } + +- return yaffs_strlen(name); ++ yaffs_fix_null_name(obj,name,buffer_size); ++ ++ return yaffs_strnlen(name,YAFFS_MAX_NAME_LENGTH); + } + +-int yaffs_GetObjectFileLength(yaffs_Object *obj) ++ ++int yaffs_get_obj_length(yaffs_obj_t *obj) + { + /* Dereference any hard linking */ +- obj = yaffs_GetEquivalentObject(obj); ++ obj = yaffs_get_equivalent_obj(obj); + +- if (obj->variantType == YAFFS_OBJECT_TYPE_FILE) +- return obj->variant.fileVariant.fileSize; +- if (obj->variantType == YAFFS_OBJECT_TYPE_SYMLINK) +- return yaffs_strlen(obj->variant.symLinkVariant.alias); +- else { ++ if (obj->variant_type == YAFFS_OBJECT_TYPE_FILE) ++ return obj->variant.file_variant.file_size; ++ if (obj->variant_type == YAFFS_OBJECT_TYPE_SYMLINK){ ++ if(!obj->variant.symlink_variant.alias) ++ return 0; ++ return yaffs_strnlen(obj->variant.symlink_variant.alias,YAFFS_MAX_ALIAS_LENGTH); ++ } else { + /* Only a directory should drop through to here */ +- return obj->myDev->nDataBytesPerChunk; ++ return obj->my_dev->data_bytes_per_chunk; + } + } + +-int yaffs_GetObjectLinkCount(yaffs_Object *obj) ++int yaffs_get_obj_link_count(yaffs_obj_t *obj) + { + int count = 0; + struct ylist_head *i; +@@ -6915,24 +4804,24 @@ int yaffs_GetObjectLinkCount(yaffs_Objec + if (!obj->unlinked) + count++; /* the object itself */ + +- ylist_for_each(i, &obj->hardLinks) ++ ylist_for_each(i, &obj->hard_links) + count++; /* add the hard links; */ + + return count; + } + +-int yaffs_GetObjectInode(yaffs_Object *obj) ++int yaffs_get_obj_inode(yaffs_obj_t *obj) + { +- obj = yaffs_GetEquivalentObject(obj); ++ obj = yaffs_get_equivalent_obj(obj); + +- return obj->objectId; ++ return obj->obj_id; + } + +-unsigned yaffs_GetObjectType(yaffs_Object *obj) ++unsigned yaffs_get_obj_type(yaffs_obj_t *obj) + { +- obj = yaffs_GetEquivalentObject(obj); ++ obj = yaffs_get_equivalent_obj(obj); + +- switch (obj->variantType) { ++ switch (obj->variant_type) { + case YAFFS_OBJECT_TYPE_FILE: + return DT_REG; + break; +@@ -6960,18 +4849,18 @@ unsigned yaffs_GetObjectType(yaffs_Objec + } + } + +-YCHAR *yaffs_GetSymlinkAlias(yaffs_Object *obj) ++YCHAR *yaffs_get_symlink_alias(yaffs_obj_t *obj) + { +- obj = yaffs_GetEquivalentObject(obj); +- if (obj->variantType == YAFFS_OBJECT_TYPE_SYMLINK) +- return yaffs_CloneString(obj->variant.symLinkVariant.alias); ++ obj = yaffs_get_equivalent_obj(obj); ++ if (obj->variant_type == YAFFS_OBJECT_TYPE_SYMLINK) ++ return yaffs_clone_str(obj->variant.symlink_variant.alias); + else +- return yaffs_CloneString(_Y("")); ++ return yaffs_clone_str(_Y("")); + } + + #ifndef CONFIG_YAFFS_WINCE + +-int yaffs_SetAttributes(yaffs_Object *obj, struct iattr *attr) ++int yaffs_set_attribs(yaffs_obj_t *obj, struct iattr *attr) + { + unsigned int valid = attr->ia_valid; + +@@ -6990,14 +4879,14 @@ int yaffs_SetAttributes(yaffs_Object *ob + obj->yst_mtime = Y_TIME_CONVERT(attr->ia_mtime); + + if (valid & ATTR_SIZE) +- yaffs_ResizeFile(obj, attr->ia_size); ++ yaffs_resize_file(obj, attr->ia_size); + +- yaffs_UpdateObjectHeader(obj, NULL, 1, 0, 0); ++ yaffs_update_oh(obj, NULL, 1, 0, 0, NULL); + + return YAFFS_OK; + + } +-int yaffs_GetAttributes(yaffs_Object *obj, struct iattr *attr) ++int yaffs_get_attribs(yaffs_obj_t *obj, struct iattr *attr) + { + unsigned int valid = 0; + +@@ -7015,7 +4904,7 @@ int yaffs_GetAttributes(yaffs_Object *ob + Y_TIME_CONVERT(attr->ia_mtime) = obj->yst_mtime; + valid |= ATTR_MTIME; + +- attr->ia_size = yaffs_GetFileSize(obj); ++ attr->ia_size = yaffs_get_file_size(obj); + valid |= ATTR_SIZE; + + attr->ia_valid = valid; +@@ -7025,20 +4914,137 @@ int yaffs_GetAttributes(yaffs_Object *ob + + #endif + ++ ++static int yaffs_do_xattrib_mod(yaffs_obj_t *obj, int set, const YCHAR *name, const void *value, int size, int flags) ++{ ++ yaffs_xattr_mod xmod; ++ ++ int result; ++ ++ xmod.set = set; ++ xmod.name = name; ++ xmod.data = value; ++ xmod.size = size; ++ xmod.flags = flags; ++ xmod.result = -ENOSPC; ++ ++ result = yaffs_update_oh(obj, NULL, 0, 0, 0, &xmod); ++ ++ if(result > 0) ++ return xmod.result; ++ else ++ return -ENOSPC; ++} ++ ++static int yaffs_apply_xattrib_mod(yaffs_obj_t *obj, char *buffer, yaffs_xattr_mod *xmod) ++{ ++ int retval = 0; ++ int x_offs = sizeof(yaffs_obj_header); ++ yaffs_dev_t *dev = obj->my_dev; ++ int x_size = dev->data_bytes_per_chunk - sizeof(yaffs_obj_header); ++ ++ char * x_buffer = buffer + x_offs; ++ ++ if(xmod->set) ++ retval = nval_set(x_buffer, x_size, xmod->name, xmod->data, xmod->size, xmod->flags); ++ else ++ retval = nval_del(x_buffer, x_size, xmod->name); ++ ++ obj->has_xattr = nval_hasvalues(x_buffer, x_size); ++ obj->xattr_known = 1; ++ ++ xmod->result = retval; ++ ++ return retval; ++} ++ ++static int yaffs_do_xattrib_fetch(yaffs_obj_t *obj, const YCHAR *name, void *value, int size) ++{ ++ char *buffer = NULL; ++ int result; ++ yaffs_ext_tags tags; ++ yaffs_dev_t *dev = obj->my_dev; ++ int x_offs = sizeof(yaffs_obj_header); ++ int x_size = dev->data_bytes_per_chunk - sizeof(yaffs_obj_header); ++ ++ char * x_buffer; ++ ++ int retval = 0; ++ ++ if(obj->hdr_chunk < 1) ++ return -ENODATA; ++ ++ /* If we know that the object has no xattribs then don't do all the ++ * reading and parsing. ++ */ ++ if(obj->xattr_known && !obj->has_xattr){ ++ if(name) ++ return -ENODATA; ++ else ++ return 0; ++ } ++ ++ buffer = (char *) yaffs_get_temp_buffer(dev, __LINE__); ++ if(!buffer) ++ return -ENOMEM; ++ ++ result = yaffs_rd_chunk_tags_nand(dev,obj->hdr_chunk, (__u8 *)buffer, &tags); ++ ++ if(result != YAFFS_OK) ++ retval = -ENOENT; ++ else{ ++ x_buffer = buffer + x_offs; ++ ++ if (!obj->xattr_known){ ++ obj->has_xattr = nval_hasvalues(x_buffer, x_size); ++ obj->xattr_known = 1; ++ } ++ ++ if(name) ++ retval = nval_get(x_buffer, x_size, name, value, size); ++ else ++ retval = nval_list(x_buffer, x_size, value,size); ++ } ++ yaffs_release_temp_buffer(dev,(__u8 *)buffer,__LINE__); ++ return retval; ++} ++ ++int yaffs_set_xattrib(yaffs_obj_t *obj, const YCHAR *name, const void * value, int size, int flags) ++{ ++ return yaffs_do_xattrib_mod(obj, 1, name, value, size, flags); ++} ++ ++int yaffs_remove_xattrib(yaffs_obj_t *obj, const YCHAR *name) ++{ ++ return yaffs_do_xattrib_mod(obj, 0, name, NULL, 0, 0); ++} ++ ++int yaffs_get_xattrib(yaffs_obj_t *obj, const YCHAR *name, void *value, int size) ++{ ++ return yaffs_do_xattrib_fetch(obj, name, value, size); ++} ++ ++int yaffs_list_xattrib(yaffs_obj_t *obj, char *buffer, int size) ++{ ++ return yaffs_do_xattrib_fetch(obj, NULL, buffer,size); ++} ++ ++ ++ + #if 0 +-int yaffs_DumpObject(yaffs_Object *obj) ++int yaffs_dump_obj(yaffs_obj_t *obj) + { + YCHAR name[257]; + +- yaffs_GetObjectName(obj, name, 256); ++ yaffs_get_obj_name(obj, name, YAFFS_MAX_NAME_LENGTH + 1); + + T(YAFFS_TRACE_ALWAYS, + (TSTR + ("Object %d, inode %d \"%s\"\n dirty %d valid %d serial %d sum %d" + " chunk %d type %d size %d\n" +- TENDSTR), obj->objectId, yaffs_GetObjectInode(obj), name, +- obj->dirty, obj->valid, obj->serial, obj->sum, obj->hdrChunk, +- yaffs_GetObjectType(obj), yaffs_GetObjectFileLength(obj))); ++ TENDSTR), obj->obj_id, yaffs_get_obj_inode(obj), name, ++ obj->dirty, obj->valid, obj->serial, obj->sum, obj->hdr_chunk, ++ yaffs_get_obj_type(obj), yaffs_get_obj_length(obj))); + + return YAFFS_OK; + } +@@ -7046,72 +5052,74 @@ int yaffs_DumpObject(yaffs_Object *obj) + + /*---------------------------- Initialisation code -------------------------------------- */ + +-static int yaffs_CheckDevFunctions(const yaffs_Device *dev) ++static int yaffs_cehck_dev_fns(const yaffs_dev_t *dev) + { + + /* Common functions, gotta have */ +- if (!dev->eraseBlockInNAND || !dev->initialiseNAND) ++ if (!dev->param.erase_fn || !dev->param.initialise_flash_fn) + return 0; + + #ifdef CONFIG_YAFFS_YAFFS2 + + /* Can use the "with tags" style interface for yaffs1 or yaffs2 */ +- if (dev->writeChunkWithTagsToNAND && +- dev->readChunkWithTagsFromNAND && +- !dev->writeChunkToNAND && +- !dev->readChunkFromNAND && +- dev->markNANDBlockBad && dev->queryNANDBlock) ++ if (dev->param.write_chunk_tags_fn && ++ dev->param.read_chunk_tags_fn && ++ !dev->param.write_chunk_fn && ++ !dev->param.read_chunk_fn && ++ dev->param.bad_block_fn && ++ dev->param.query_block_fn) + return 1; + #endif + + /* Can use the "spare" style interface for yaffs1 */ +- if (!dev->isYaffs2 && +- !dev->writeChunkWithTagsToNAND && +- !dev->readChunkWithTagsFromNAND && +- dev->writeChunkToNAND && +- dev->readChunkFromNAND && +- !dev->markNANDBlockBad && !dev->queryNANDBlock) ++ if (!dev->param.is_yaffs2 && ++ !dev->param.write_chunk_tags_fn && ++ !dev->param.read_chunk_tags_fn && ++ dev->param.write_chunk_fn && ++ dev->param.read_chunk_fn && ++ !dev->param.bad_block_fn && ++ !dev->param.query_block_fn) + return 1; + +- return 0; /* bad */ ++ return 0; /* bad */ + } + + +-static int yaffs_CreateInitialDirectories(yaffs_Device *dev) ++static int yaffs_create_initial_dir(yaffs_dev_t *dev) + { + /* Initialise the unlinked, deleted, root and lost and found directories */ + +- dev->lostNFoundDir = dev->rootDir = NULL; +- dev->unlinkedDir = dev->deletedDir = NULL; ++ dev->lost_n_found = dev->root_dir = NULL; ++ dev->unlinked_dir = dev->del_dir = NULL; + +- dev->unlinkedDir = +- yaffs_CreateFakeDirectory(dev, YAFFS_OBJECTID_UNLINKED, S_IFDIR); ++ dev->unlinked_dir = ++ yaffs_create_fake_dir(dev, YAFFS_OBJECTID_UNLINKED, S_IFDIR); + +- dev->deletedDir = +- yaffs_CreateFakeDirectory(dev, YAFFS_OBJECTID_DELETED, S_IFDIR); ++ dev->del_dir = ++ yaffs_create_fake_dir(dev, YAFFS_OBJECTID_DELETED, S_IFDIR); + +- dev->rootDir = +- yaffs_CreateFakeDirectory(dev, YAFFS_OBJECTID_ROOT, ++ dev->root_dir = ++ yaffs_create_fake_dir(dev, YAFFS_OBJECTID_ROOT, + YAFFS_ROOT_MODE | S_IFDIR); +- dev->lostNFoundDir = +- yaffs_CreateFakeDirectory(dev, YAFFS_OBJECTID_LOSTNFOUND, ++ dev->lost_n_found = ++ yaffs_create_fake_dir(dev, YAFFS_OBJECTID_LOSTNFOUND, + YAFFS_LOSTNFOUND_MODE | S_IFDIR); + +- if (dev->lostNFoundDir && dev->rootDir && dev->unlinkedDir && dev->deletedDir) { +- yaffs_AddObjectToDirectory(dev->rootDir, dev->lostNFoundDir); ++ if (dev->lost_n_found && dev->root_dir && dev->unlinked_dir && dev->del_dir) { ++ yaffs_add_obj_to_dir(dev->root_dir, dev->lost_n_found); + return YAFFS_OK; + } + + return YAFFS_FAIL; + } + +-int yaffs_GutsInitialise(yaffs_Device *dev) ++int yaffs_guts_initialise(yaffs_dev_t *dev) + { + int init_failed = 0; + unsigned x; + int bits; + +- T(YAFFS_TRACE_TRACING, (TSTR("yaffs: yaffs_GutsInitialise()" TENDSTR))); ++ T(YAFFS_TRACE_TRACING, (TSTR("yaffs: yaffs_guts_initialise()" TENDSTR))); + + /* Check stuff that must be set */ + +@@ -7120,52 +5128,52 @@ int yaffs_GutsInitialise(yaffs_Device *d + return YAFFS_FAIL; + } + +- dev->internalStartBlock = dev->startBlock; +- dev->internalEndBlock = dev->endBlock; +- dev->blockOffset = 0; +- dev->chunkOffset = 0; +- dev->nFreeChunks = 0; +- +- dev->gcBlock = -1; +- +- if (dev->startBlock == 0) { +- dev->internalStartBlock = dev->startBlock + 1; +- dev->internalEndBlock = dev->endBlock + 1; +- dev->blockOffset = 1; +- dev->chunkOffset = dev->nChunksPerBlock; ++ dev->internal_start_block = dev->param.start_block; ++ dev->internal_end_block = dev->param.end_block; ++ dev->block_offset = 0; ++ dev->chunk_offset = 0; ++ dev->n_free_chunks = 0; ++ ++ dev->gc_block = 0; ++ ++ if (dev->param.start_block == 0) { ++ dev->internal_start_block = dev->param.start_block + 1; ++ dev->internal_end_block = dev->param.end_block + 1; ++ dev->block_offset = 1; ++ dev->chunk_offset = dev->param.chunks_per_block; + } + + /* Check geometry parameters. */ + +- if ((!dev->inbandTags && dev->isYaffs2 && dev->totalBytesPerChunk < 1024) || +- (!dev->isYaffs2 && dev->totalBytesPerChunk < 512) || +- (dev->inbandTags && !dev->isYaffs2) || +- dev->nChunksPerBlock < 2 || +- dev->nReservedBlocks < 2 || +- dev->internalStartBlock <= 0 || +- dev->internalEndBlock <= 0 || +- dev->internalEndBlock <= (dev->internalStartBlock + dev->nReservedBlocks + 2)) { /* otherwise it is too small */ ++ if ((!dev->param.inband_tags && dev->param.is_yaffs2 && dev->param.total_bytes_per_chunk < 1024) || ++ (!dev->param.is_yaffs2 && dev->param.total_bytes_per_chunk < 512) || ++ (dev->param.inband_tags && !dev->param.is_yaffs2) || ++ dev->param.chunks_per_block < 2 || ++ dev->param.n_reserved_blocks < 2 || ++ dev->internal_start_block <= 0 || ++ dev->internal_end_block <= 0 || ++ dev->internal_end_block <= (dev->internal_start_block + dev->param.n_reserved_blocks + 2)) { /* otherwise it is too small */ + T(YAFFS_TRACE_ALWAYS, + (TSTR +- ("yaffs: NAND geometry problems: chunk size %d, type is yaffs%s, inbandTags %d " +- TENDSTR), dev->totalBytesPerChunk, dev->isYaffs2 ? "2" : "", dev->inbandTags)); ++ ("yaffs: NAND geometry problems: chunk size %d, type is yaffs%s, inband_tags %d " ++ TENDSTR), dev->param.total_bytes_per_chunk, dev->param.is_yaffs2 ? "2" : "", dev->param.inband_tags)); + return YAFFS_FAIL; + } + +- if (yaffs_InitialiseNAND(dev) != YAFFS_OK) { ++ if (yaffs_init_nand(dev) != YAFFS_OK) { + T(YAFFS_TRACE_ALWAYS, + (TSTR("yaffs: InitialiseNAND failed" TENDSTR))); + return YAFFS_FAIL; + } + + /* Sort out space for inband tags, if required */ +- if (dev->inbandTags) +- dev->nDataBytesPerChunk = dev->totalBytesPerChunk - sizeof(yaffs_PackedTags2TagsPart); ++ if (dev->param.inband_tags) ++ dev->data_bytes_per_chunk = dev->param.total_bytes_per_chunk - sizeof(yaffs_PackedTags2TagsPart); + else +- dev->nDataBytesPerChunk = dev->totalBytesPerChunk; ++ dev->data_bytes_per_chunk = dev->param.total_bytes_per_chunk; + + /* Got the right mix of functions? */ +- if (!yaffs_CheckDevFunctions(dev)) { ++ if (!yaffs_cehck_dev_fns(dev)) { + /* Function missing */ + T(YAFFS_TRACE_ALWAYS, + (TSTR +@@ -7175,13 +5183,13 @@ int yaffs_GutsInitialise(yaffs_Device *d + } + + /* This is really a compilation check. */ +- if (!yaffs_CheckStructures()) { ++ if (!yaffs_check_structures()) { + T(YAFFS_TRACE_ALWAYS, +- (TSTR("yaffs_CheckStructures failed\n" TENDSTR))); ++ (TSTR("yaffs_check_structures failed\n" TENDSTR))); + return YAFFS_FAIL; + } + +- if (dev->isMounted) { ++ if (dev->is_mounted) { + T(YAFFS_TRACE_ALWAYS, + (TSTR("yaffs: device already mounted\n" TENDSTR))); + return YAFFS_FAIL; +@@ -7189,59 +5197,62 @@ int yaffs_GutsInitialise(yaffs_Device *d + + /* Finished with most checks. One or two more checks happen later on too. */ + +- dev->isMounted = 1; ++ dev->is_mounted = 1; + + /* OK now calculate a few things for the device */ + + /* + * Calculate all the chunk size manipulation numbers: + */ +- x = dev->nDataBytesPerChunk; +- /* We always use dev->chunkShift and dev->chunkDiv */ +- dev->chunkShift = Shifts(x); +- x >>= dev->chunkShift; +- dev->chunkDiv = x; +- /* We only use chunk mask if chunkDiv is 1 */ +- dev->chunkMask = (1<chunkShift) - 1; ++ x = dev->data_bytes_per_chunk; ++ /* We always use dev->chunk_shift and dev->chunk_div */ ++ dev->chunk_shift = Shifts(x); ++ x >>= dev->chunk_shift; ++ dev->chunk_div = x; ++ /* We only use chunk mask if chunk_div is 1 */ ++ dev->chunk_mask = (1<chunk_shift) - 1; + + /* +- * Calculate chunkGroupBits. +- * We need to find the next power of 2 > than internalEndBlock ++ * Calculate chunk_grp_bits. ++ * We need to find the next power of 2 > than internal_end_block + */ + +- x = dev->nChunksPerBlock * (dev->internalEndBlock + 1); ++ x = dev->param.chunks_per_block * (dev->internal_end_block + 1); + + bits = ShiftsGE(x); + + /* Set up tnode width if wide tnodes are enabled. */ +- if (!dev->wideTnodesDisabled) { ++ if (!dev->param.wide_tnodes_disabled) { + /* bits must be even so that we end up with 32-bit words */ + if (bits & 1) + bits++; + if (bits < 16) +- dev->tnodeWidth = 16; ++ dev->tnode_width = 16; + else +- dev->tnodeWidth = bits; ++ dev->tnode_width = bits; + } else +- dev->tnodeWidth = 16; ++ dev->tnode_width = 16; + +- dev->tnodeMask = (1<tnodeWidth)-1; ++ dev->tnode_mask = (1<tnode_width)-1; + + /* Level0 Tnodes are 16 bits or wider (if wide tnodes are enabled), + * so if the bitwidth of the + * chunk range we're using is greater than 16 we need +- * to figure out chunk shift and chunkGroupSize ++ * to figure out chunk shift and chunk_grp_size + */ + +- if (bits <= dev->tnodeWidth) +- dev->chunkGroupBits = 0; ++ if (bits <= dev->tnode_width) ++ dev->chunk_grp_bits = 0; + else +- dev->chunkGroupBits = bits - dev->tnodeWidth; ++ dev->chunk_grp_bits = bits - dev->tnode_width; + ++ dev->tnode_size = (dev->tnode_width * YAFFS_NTNODES_LEVEL0)/8; ++ if(dev->tnode_size < sizeof(yaffs_tnode_t)) ++ dev->tnode_size = sizeof(yaffs_tnode_t); + +- dev->chunkGroupSize = 1 << dev->chunkGroupBits; ++ dev->chunk_grp_size = 1 << dev->chunk_grp_bits; + +- if (dev->nChunksPerBlock < dev->chunkGroupSize) { ++ if (dev->param.chunks_per_block < dev->chunk_grp_size) { + /* We have a problem because the soft delete won't work if + * the chunk group size > chunks per block. + * This can be remedied by using larger "virtual blocks". +@@ -7255,85 +5266,89 @@ int yaffs_GutsInitialise(yaffs_Device *d + /* OK, we've finished verifying the device, lets continue with initialisation */ + + /* More device initialisation */ +- dev->garbageCollections = 0; +- dev->passiveGarbageCollections = 0; +- dev->currentDirtyChecker = 0; +- dev->bufferedBlock = -1; +- dev->doingBufferedBlockRewrite = 0; +- dev->nDeletedFiles = 0; +- dev->nBackgroundDeletions = 0; +- dev->nUnlinkedFiles = 0; +- dev->eccFixed = 0; +- dev->eccUnfixed = 0; +- dev->tagsEccFixed = 0; +- dev->tagsEccUnfixed = 0; +- dev->nErasureFailures = 0; +- dev->nErasedBlocks = 0; +- dev->isDoingGC = 0; +- dev->hasPendingPrioritisedGCs = 1; /* Assume the worst for now, will get fixed on first GC */ ++ dev->all_gcs = 0; ++ dev->passive_gc_count = 0; ++ dev->oldest_dirty_gc_count = 0; ++ dev->bg_gcs = 0; ++ dev->gc_block_finder = 0; ++ dev->buffered_block = -1; ++ dev->doing_buffered_block_rewrite = 0; ++ dev->n_deleted_files = 0; ++ dev->n_bg_deletions = 0; ++ dev->n_unlinked_files = 0; ++ dev->n_ecc_fixed = 0; ++ dev->n_ecc_unfixed = 0; ++ dev->n_tags_ecc_fixed = 0; ++ dev->n_tags_ecc_unfixed = 0; ++ dev->n_erase_failures = 0; ++ dev->n_erased_blocks = 0; ++ dev->gc_disable= 0; ++ dev->has_pending_prioritised_gc = 1; /* Assume the worst for now, will get fixed on first GC */ ++ YINIT_LIST_HEAD(&dev->dirty_dirs); ++ dev->oldest_dirty_seq = 0; ++ dev->oldest_dirty_block = 0; + + /* Initialise temporary buffers and caches. */ +- if (!yaffs_InitialiseTempBuffers(dev)) ++ if (!yaffs_init_tmp_buffers(dev)) + init_failed = 1; + +- dev->srCache = NULL; +- dev->gcCleanupList = NULL; ++ dev->cache = NULL; ++ dev->gc_cleanup_list = NULL; + + + if (!init_failed && +- dev->nShortOpCaches > 0) { ++ dev->param.n_caches > 0) { + int i; + void *buf; +- int srCacheBytes = dev->nShortOpCaches * sizeof(yaffs_ChunkCache); ++ int cacheBytes = dev->param.n_caches * sizeof(yaffs_cache_t); + +- if (dev->nShortOpCaches > YAFFS_MAX_SHORT_OP_CACHES) +- dev->nShortOpCaches = YAFFS_MAX_SHORT_OP_CACHES; ++ if (dev->param.n_caches > YAFFS_MAX_SHORT_OP_CACHES) ++ dev->param.n_caches = YAFFS_MAX_SHORT_OP_CACHES; + +- dev->srCache = YMALLOC(srCacheBytes); ++ dev->cache = YMALLOC(cacheBytes); + +- buf = (__u8 *) dev->srCache; ++ buf = (__u8 *) dev->cache; + +- if (dev->srCache) +- memset(dev->srCache, 0, srCacheBytes); ++ if (dev->cache) ++ memset(dev->cache, 0, cacheBytes); + +- for (i = 0; i < dev->nShortOpCaches && buf; i++) { +- dev->srCache[i].object = NULL; +- dev->srCache[i].lastUse = 0; +- dev->srCache[i].dirty = 0; +- dev->srCache[i].data = buf = YMALLOC_DMA(dev->totalBytesPerChunk); ++ for (i = 0; i < dev->param.n_caches && buf; i++) { ++ dev->cache[i].object = NULL; ++ dev->cache[i].last_use = 0; ++ dev->cache[i].dirty = 0; ++ dev->cache[i].data = buf = YMALLOC_DMA(dev->param.total_bytes_per_chunk); + } + if (!buf) + init_failed = 1; + +- dev->srLastUse = 0; ++ dev->cache_last_use = 0; + } + +- dev->cacheHits = 0; ++ dev->cache_hits = 0; + + if (!init_failed) { +- dev->gcCleanupList = YMALLOC(dev->nChunksPerBlock * sizeof(__u32)); +- if (!dev->gcCleanupList) ++ dev->gc_cleanup_list = YMALLOC(dev->param.chunks_per_block * sizeof(__u32)); ++ if (!dev->gc_cleanup_list) + init_failed = 1; + } + +- if (dev->isYaffs2) +- dev->useHeaderFileSize = 1; ++ if (dev->param.is_yaffs2) ++ dev->param.use_header_file_size = 1; + +- if (!init_failed && !yaffs_InitialiseBlocks(dev)) ++ if (!init_failed && !yaffs_init_blocks(dev)) + init_failed = 1; + +- yaffs_InitialiseTnodes(dev); +- yaffs_InitialiseObjects(dev); ++ yaffs_init_tnodes_and_objs(dev); + +- if (!init_failed && !yaffs_CreateInitialDirectories(dev)) ++ if (!init_failed && !yaffs_create_initial_dir(dev)) + init_failed = 1; + + + if (!init_failed) { + /* Now scan the flash. */ +- if (dev->isYaffs2) { +- if (yaffs_CheckpointRestore(dev)) { +- yaffs_CheckObjectDetailsLoaded(dev->rootDir); ++ if (dev->param.is_yaffs2) { ++ if (yaffs2_checkpt_restore(dev)) { ++ yaffs_check_obj_details_loaded(dev->root_dir); + T(YAFFS_TRACE_ALWAYS, + (TSTR("yaffs: restored from checkpoint" TENDSTR))); + } else { +@@ -7341,128 +5356,129 @@ int yaffs_GutsInitialise(yaffs_Device *d + /* Clean up the mess caused by an aborted checkpoint load + * and scan backwards. + */ +- yaffs_DeinitialiseBlocks(dev); +- yaffs_DeinitialiseTnodes(dev); +- yaffs_DeinitialiseObjects(dev); ++ yaffs_deinit_blocks(dev); + ++ yaffs_deinit_tnodes_and_objs(dev); + +- dev->nErasedBlocks = 0; +- dev->nFreeChunks = 0; +- dev->allocationBlock = -1; +- dev->allocationPage = -1; +- dev->nDeletedFiles = 0; +- dev->nUnlinkedFiles = 0; +- dev->nBackgroundDeletions = 0; +- dev->oldestDirtySequence = 0; ++ dev->n_erased_blocks = 0; ++ dev->n_free_chunks = 0; ++ dev->alloc_block = -1; ++ dev->alloc_page = -1; ++ dev->n_deleted_files = 0; ++ dev->n_unlinked_files = 0; ++ dev->n_bg_deletions = 0; + +- if (!init_failed && !yaffs_InitialiseBlocks(dev)) ++ if (!init_failed && !yaffs_init_blocks(dev)) + init_failed = 1; + +- yaffs_InitialiseTnodes(dev); +- yaffs_InitialiseObjects(dev); ++ yaffs_init_tnodes_and_objs(dev); + +- if (!init_failed && !yaffs_CreateInitialDirectories(dev)) ++ if (!init_failed && !yaffs_create_initial_dir(dev)) + init_failed = 1; + +- if (!init_failed && !yaffs_ScanBackwards(dev)) ++ if (!init_failed && !yaffs2_scan_backwards(dev)) + init_failed = 1; + } +- } else if (!yaffs_Scan(dev)) ++ } else if (!yaffs1_scan(dev)) + init_failed = 1; + +- yaffs_StripDeletedObjects(dev); ++ yaffs_strip_deleted_objs(dev); ++ yaffs_fix_hanging_objs(dev); ++ if(dev->param.empty_lost_n_found) ++ yaffs_empty_l_n_f(dev); + } + + if (init_failed) { + /* Clean up the mess */ + T(YAFFS_TRACE_TRACING, +- (TSTR("yaffs: yaffs_GutsInitialise() aborted.\n" TENDSTR))); ++ (TSTR("yaffs: yaffs_guts_initialise() aborted.\n" TENDSTR))); + +- yaffs_Deinitialise(dev); ++ yaffs_deinitialise(dev); + return YAFFS_FAIL; + } + + /* Zero out stats */ +- dev->nPageReads = 0; +- dev->nPageWrites = 0; +- dev->nBlockErasures = 0; +- dev->nGCCopies = 0; +- dev->nRetriedWrites = 0; +- +- dev->nRetiredBlocks = 0; +- +- yaffs_VerifyFreeChunks(dev); +- yaffs_VerifyBlocks(dev); +- ++ dev->n_page_reads = 0; ++ dev->n_page_writes = 0; ++ dev->n_erasures = 0; ++ dev->n_gc_copies = 0; ++ dev->n_retired_writes = 0; ++ ++ dev->n_retired_blocks = 0; ++ ++ yaffs_verify_free_chunks(dev); ++ yaffs_verify_blocks(dev); ++ ++ /* Clean up any aborted checkpoint data */ ++ if(!dev->is_checkpointed && dev->blocks_in_checkpt > 0) ++ yaffs2_checkpt_invalidate(dev); + + T(YAFFS_TRACE_TRACING, +- (TSTR("yaffs: yaffs_GutsInitialise() done.\n" TENDSTR))); ++ (TSTR("yaffs: yaffs_guts_initialise() done.\n" TENDSTR))); + return YAFFS_OK; + + } + +-void yaffs_Deinitialise(yaffs_Device *dev) ++void yaffs_deinitialise(yaffs_dev_t *dev) + { +- if (dev->isMounted) { ++ if (dev->is_mounted) { + int i; + +- yaffs_DeinitialiseBlocks(dev); +- yaffs_DeinitialiseTnodes(dev); +- yaffs_DeinitialiseObjects(dev); +- if (dev->nShortOpCaches > 0 && +- dev->srCache) { ++ yaffs_deinit_blocks(dev); ++ yaffs_deinit_tnodes_and_objs(dev); ++ if (dev->param.n_caches > 0 && ++ dev->cache) { + +- for (i = 0; i < dev->nShortOpCaches; i++) { +- if (dev->srCache[i].data) +- YFREE(dev->srCache[i].data); +- dev->srCache[i].data = NULL; ++ for (i = 0; i < dev->param.n_caches; i++) { ++ if (dev->cache[i].data) ++ YFREE(dev->cache[i].data); ++ dev->cache[i].data = NULL; + } + +- YFREE(dev->srCache); +- dev->srCache = NULL; ++ YFREE(dev->cache); ++ dev->cache = NULL; + } + +- YFREE(dev->gcCleanupList); ++ YFREE(dev->gc_cleanup_list); + + for (i = 0; i < YAFFS_N_TEMP_BUFFERS; i++) +- YFREE(dev->tempBuffer[i].buffer); ++ YFREE(dev->temp_buffer[i].buffer); + +- dev->isMounted = 0; ++ dev->is_mounted = 0; + +- if (dev->deinitialiseNAND) +- dev->deinitialiseNAND(dev); ++ if (dev->param.deinitialise_flash_fn) ++ dev->param.deinitialise_flash_fn(dev); + } + } + +-static int yaffs_CountFreeChunks(yaffs_Device *dev) ++int yaffs_count_free_chunks(yaffs_dev_t *dev) + { +- int nFree; ++ int nFree=0; + int b; + +- yaffs_BlockInfo *blk; +- +- for (nFree = 0, b = dev->internalStartBlock; b <= dev->internalEndBlock; +- b++) { +- blk = yaffs_GetBlockInfo(dev, b); ++ yaffs_block_info_t *blk; + +- switch (blk->blockState) { ++ blk = dev->block_info; ++ for (b = dev->internal_start_block; b <= dev->internal_end_block; b++) { ++ switch (blk->block_state) { + case YAFFS_BLOCK_STATE_EMPTY: + case YAFFS_BLOCK_STATE_ALLOCATING: + case YAFFS_BLOCK_STATE_COLLECTING: + case YAFFS_BLOCK_STATE_FULL: + nFree += +- (dev->nChunksPerBlock - blk->pagesInUse + +- blk->softDeletions); ++ (dev->param.chunks_per_block - blk->pages_in_use + ++ blk->soft_del_pages); + break; + default: + break; + } ++ blk++; + } + + return nFree; + } + +-int yaffs_GetNumberOfFreeChunks(yaffs_Device *dev) ++int yaffs_get_n_free_chunks(yaffs_dev_t *dev) + { + /* This is what we report to the outside world */ + +@@ -7472,30 +5488,28 @@ int yaffs_GetNumberOfFreeChunks(yaffs_De + int i; + + #if 1 +- nFree = dev->nFreeChunks; ++ nFree = dev->n_free_chunks; + #else +- nFree = yaffs_CountFreeChunks(dev); ++ nFree = yaffs_count_free_chunks(dev); + #endif + +- nFree += dev->nDeletedFiles; ++ nFree += dev->n_deleted_files; + + /* Now count the number of dirty chunks in the cache and subtract those */ + +- for (nDirtyCacheChunks = 0, i = 0; i < dev->nShortOpCaches; i++) { +- if (dev->srCache[i].dirty) ++ for (nDirtyCacheChunks = 0, i = 0; i < dev->param.n_caches; i++) { ++ if (dev->cache[i].dirty) + nDirtyCacheChunks++; + } + + nFree -= nDirtyCacheChunks; + +- nFree -= ((dev->nReservedBlocks + 1) * dev->nChunksPerBlock); ++ nFree -= ((dev->param.n_reserved_blocks + 1) * dev->param.chunks_per_block); + + /* Now we figure out how much to reserve for the checkpoint and report that... */ +- blocksForCheckpoint = yaffs_CalcCheckpointBlocksRequired(dev) - dev->blocksInCheckpoint; +- if (blocksForCheckpoint < 0) +- blocksForCheckpoint = 0; ++ blocksForCheckpoint = yaffs_calc_checkpt_blocks_required(dev); + +- nFree -= (blocksForCheckpoint * dev->nChunksPerBlock); ++ nFree -= (blocksForCheckpoint * dev->param.chunks_per_block); + + if (nFree < 0) + nFree = 0; +@@ -7504,49 +5518,27 @@ int yaffs_GetNumberOfFreeChunks(yaffs_De + + } + +-static int yaffs_freeVerificationFailures; +- +-static void yaffs_VerifyFreeChunks(yaffs_Device *dev) +-{ +- int counted; +- int difference; +- +- if (yaffs_SkipVerification(dev)) +- return; +- +- counted = yaffs_CountFreeChunks(dev); +- +- difference = dev->nFreeChunks - counted; +- +- if (difference) { +- T(YAFFS_TRACE_ALWAYS, +- (TSTR("Freechunks verification failure %d %d %d" TENDSTR), +- dev->nFreeChunks, counted, difference)); +- yaffs_freeVerificationFailures++; +- } +-} + + /*---------------------------------------- YAFFS test code ----------------------*/ + +-#define yaffs_CheckStruct(structure, syze, name) \ ++#define yaffs_check_struct(structure, syze, name) \ + do { \ + if (sizeof(structure) != syze) { \ + T(YAFFS_TRACE_ALWAYS, (TSTR("%s should be %d but is %d\n" TENDSTR),\ +- name, syze, sizeof(structure))); \ ++ name, syze, (int) sizeof(structure))); \ + return YAFFS_FAIL; \ + } \ + } while (0) + +-static int yaffs_CheckStructures(void) ++static int yaffs_check_structures(void) + { +-/* yaffs_CheckStruct(yaffs_Tags,8,"yaffs_Tags"); */ +-/* yaffs_CheckStruct(yaffs_TagsUnion,8,"yaffs_TagsUnion"); */ +-/* yaffs_CheckStruct(yaffs_Spare,16,"yaffs_Spare"); */ +-#ifndef CONFIG_YAFFS_TNODE_LIST_DEBUG +- yaffs_CheckStruct(yaffs_Tnode, 2 * YAFFS_NTNODES_LEVEL0, "yaffs_Tnode"); +-#endif ++/* yaffs_check_struct(yaffs_tags_t,8,"yaffs_tags_t"); */ ++/* yaffs_check_struct(yaffs_tags_union_t,8,"yaffs_tags_union_t"); */ ++/* yaffs_check_struct(yaffs_spare,16,"yaffs_spare"); */ ++/* yaffs_check_struct(yaffs_tnode_t, 2 * YAFFS_NTNODES_LEVEL0, "yaffs_tnode_t"); */ ++ + #ifndef CONFIG_YAFFS_WINCE +- yaffs_CheckStruct(yaffs_ObjectHeader, 512, "yaffs_ObjectHeader"); ++ yaffs_check_struct(yaffs_obj_header, 512, "yaffs_obj_header"); + #endif + return YAFFS_OK; + } +--- a/fs/yaffs2/yaffs_guts.h ++++ b/fs/yaffs2/yaffs_guts.h +@@ -1,7 +1,7 @@ + /* + * YAFFS: Yet another Flash File System . A NAND-flash specific file system. + * +- * Copyright (C) 2002-2007 Aleph One Ltd. ++ * Copyright (C) 2002-2010 Aleph One Ltd. + * for Toby Churchill Ltd and Brightstar Engineering + * + * Created by Charles Manning +@@ -16,8 +16,9 @@ + #ifndef __YAFFS_GUTS_H__ + #define __YAFFS_GUTS_H__ + +-#include "devextras.h" + #include "yportenv.h" ++#include "devextras.h" ++#include "yaffs_list.h" + + #define YAFFS_OK 1 + #define YAFFS_FAIL 0 +@@ -52,7 +53,6 @@ + + #define YAFFS_MAX_CHUNK_ID 0x000FFFFF + +-#define YAFFS_UNUSED_OBJECT_ID 0x0003FFFF + + #define YAFFS_ALLOCATION_NOBJECTS 100 + #define YAFFS_ALLOCATION_NTNODES 100 +@@ -62,8 +62,9 @@ + + + #define YAFFS_OBJECT_SPACE 0x40000 ++#define YAFFS_MAX_OBJECT_ID (YAFFS_OBJECT_SPACE -1) + +-#define YAFFS_CHECKPOINT_VERSION 3 ++#define YAFFS_CHECKPOINT_VERSION 4 + + #ifdef CONFIG_YAFFS_UNICODE + #define YAFFS_MAX_NAME_LENGTH 127 +@@ -81,12 +82,11 @@ + #define YAFFS_OBJECTID_UNLINKED 3 + #define YAFFS_OBJECTID_DELETED 4 + +-/* Sseudo object ids for checkpointing */ ++/* Pseudo object ids for checkpointing */ + #define YAFFS_OBJECTID_SB_HEADER 0x10 + #define YAFFS_OBJECTID_CHECKPOINT_DATA 0x20 + #define YAFFS_SEQUENCE_CHECKPOINT_DATA 0x21 + +-/* */ + + #define YAFFS_MAX_SHORT_OP_CACHES 20 + +@@ -113,18 +113,14 @@ + + /* ChunkCache is used for short read/write operations.*/ + typedef struct { +- struct yaffs_ObjectStruct *object; +- int chunkId; +- int lastUse; ++ struct yaffs_obj_s *object; ++ int chunk_id; ++ int last_use; + int dirty; +- int nBytes; /* Only valid if the cache is dirty */ ++ int n_bytes; /* Only valid if the cache is dirty */ + int locked; /* Can't push out or flush while locked. */ +-#ifdef CONFIG_YAFFS_YAFFS2 + __u8 *data; +-#else +- __u8 data[YAFFS_BYTES_PER_CHUNK]; +-#endif +-} yaffs_ChunkCache; ++} yaffs_cache_t; + + + +@@ -135,18 +131,18 @@ typedef struct { + + #ifndef CONFIG_YAFFS_NO_YAFFS1 + typedef struct { +- unsigned chunkId:20; +- unsigned serialNumber:2; +- unsigned byteCountLSB:10; +- unsigned objectId:18; ++ unsigned chunk_id:20; ++ unsigned serial_number:2; ++ unsigned n_bytes_lsb:10; ++ unsigned obj_id:18; + unsigned ecc:12; +- unsigned byteCountMSB:2; +-} yaffs_Tags; ++ unsigned n_bytes_msb:2; ++} yaffs_tags_t; + + typedef union { +- yaffs_Tags asTags; +- __u8 asBytes[8]; +-} yaffs_TagsUnion; ++ yaffs_tags_t as_tags; ++ __u8 as_bytes[8]; ++} yaffs_tags_union_t; + + #endif + +@@ -157,7 +153,7 @@ typedef enum { + YAFFS_ECC_RESULT_NO_ERROR, + YAFFS_ECC_RESULT_FIXED, + YAFFS_ECC_RESULT_UNFIXED +-} yaffs_ECCResult; ++} yaffs_ecc_result; + + typedef enum { + YAFFS_OBJECT_TYPE_UNKNOWN, +@@ -166,64 +162,64 @@ typedef enum { + YAFFS_OBJECT_TYPE_DIRECTORY, + YAFFS_OBJECT_TYPE_HARDLINK, + YAFFS_OBJECT_TYPE_SPECIAL +-} yaffs_ObjectType; ++} yaffs_obj_type; + + #define YAFFS_OBJECT_TYPE_MAX YAFFS_OBJECT_TYPE_SPECIAL + + typedef struct { + +- unsigned validMarker0; +- unsigned chunkUsed; /* Status of the chunk: used or unused */ +- unsigned objectId; /* If 0 then this is not part of an object (unused) */ +- unsigned chunkId; /* If 0 then this is a header, else a data chunk */ +- unsigned byteCount; /* Only valid for data chunks */ ++ unsigned validity1; ++ unsigned chunk_used; /* Status of the chunk: used or unused */ ++ unsigned obj_id; /* If 0 then this is not part of an object (unused) */ ++ unsigned chunk_id; /* If 0 then this is a header, else a data chunk */ ++ unsigned n_bytes; /* Only valid for data chunks */ + + /* The following stuff only has meaning when we read */ +- yaffs_ECCResult eccResult; +- unsigned blockBad; ++ yaffs_ecc_result ecc_result; ++ unsigned block_bad; + + /* YAFFS 1 stuff */ +- unsigned chunkDeleted; /* The chunk is marked deleted */ +- unsigned serialNumber; /* Yaffs1 2-bit serial number */ ++ unsigned is_deleted; /* The chunk is marked deleted */ ++ unsigned serial_number; /* Yaffs1 2-bit serial number */ + + /* YAFFS2 stuff */ +- unsigned sequenceNumber; /* The sequence number of this block */ ++ unsigned seq_number; /* The sequence number of this block */ + + /* Extra info if this is an object header (YAFFS2 only) */ + +- unsigned extraHeaderInfoAvailable; /* There is extra info available if this is not zero */ +- unsigned extraParentObjectId; /* The parent object */ +- unsigned extraIsShrinkHeader; /* Is it a shrink header? */ +- unsigned extraShadows; /* Does this shadow another object? */ ++ unsigned extra_available; /* There is extra info available if this is not zero */ ++ unsigned extra_parent_id; /* The parent object */ ++ unsigned extra_is_shrink; /* Is it a shrink header? */ ++ unsigned extra_shadows; /* Does this shadow another object? */ + +- yaffs_ObjectType extraObjectType; /* What object type? */ ++ yaffs_obj_type extra_obj_type; /* What object type? */ + +- unsigned extraFileLength; /* Length if it is a file */ +- unsigned extraEquivalentObjectId; /* Equivalent object Id if it is a hard link */ ++ unsigned extra_length; /* Length if it is a file */ ++ unsigned extra_equiv_id; /* Equivalent object Id if it is a hard link */ + +- unsigned validMarker1; ++ unsigned validty1; + +-} yaffs_ExtendedTags; ++} yaffs_ext_tags; + + /* Spare structure for YAFFS1 */ + typedef struct { +- __u8 tagByte0; +- __u8 tagByte1; +- __u8 tagByte2; +- __u8 tagByte3; +- __u8 pageStatus; /* set to 0 to delete the chunk */ +- __u8 blockStatus; +- __u8 tagByte4; +- __u8 tagByte5; ++ __u8 tb0; ++ __u8 tb1; ++ __u8 tb2; ++ __u8 tb3; ++ __u8 page_status; /* set to 0 to delete the chunk */ ++ __u8 block_status; ++ __u8 tb4; ++ __u8 tb5; + __u8 ecc1[3]; +- __u8 tagByte6; +- __u8 tagByte7; ++ __u8 tb6; ++ __u8 tb7; + __u8 ecc2[3]; +-} yaffs_Spare; ++} yaffs_spare; + + /*Special structure for passing through to mtd */ +-struct yaffs_NANDSpare { +- yaffs_Spare spare; ++struct yaffs_nand_spare { ++ yaffs_spare spare; + int eccres1; + int eccres2; + }; +@@ -234,6 +230,8 @@ typedef enum { + YAFFS_BLOCK_STATE_UNKNOWN = 0, + + YAFFS_BLOCK_STATE_SCANNING, ++ /* Being scanned */ ++ + YAFFS_BLOCK_STATE_NEEDS_SCANNING, + /* The block might have something on it (ie it is allocating or full, perhaps empty) + * but it needs to be scanned to determine its true state. +@@ -249,67 +247,69 @@ typedef enum { + /* This block is partially allocated. + * At least one page holds valid data. + * This is the one currently being used for page +- * allocation. Should never be more than one of these ++ * allocation. Should never be more than one of these. ++ * If a block is only partially allocated at mount it is treated as full. + */ + + YAFFS_BLOCK_STATE_FULL, + /* All the pages in this block have been allocated. ++ * If a block was only partially allocated when mounted we treat ++ * it as fully allocated. + */ + + YAFFS_BLOCK_STATE_DIRTY, +- /* All pages have been allocated and deleted. ++ /* The block was full and now all chunks have been deleted. + * Erase me, reuse me. + */ + + YAFFS_BLOCK_STATE_CHECKPOINT, +- /* This block is assigned to holding checkpoint data. +- */ ++ /* This block is assigned to holding checkpoint data. */ + + YAFFS_BLOCK_STATE_COLLECTING, + /* This block is being garbage collected */ + + YAFFS_BLOCK_STATE_DEAD + /* This block has failed and is not in use */ +-} yaffs_BlockState; ++} yaffs_block_state_t; + + #define YAFFS_NUMBER_OF_BLOCK_STATES (YAFFS_BLOCK_STATE_DEAD + 1) + + + typedef struct { + +- int softDeletions:10; /* number of soft deleted pages */ +- int pagesInUse:10; /* number of pages in use */ +- unsigned blockState:4; /* One of the above block states. NB use unsigned because enum is sometimes an int */ +- __u32 needsRetiring:1; /* Data has failed on this block, need to get valid data off */ ++ int soft_del_pages:10; /* number of soft deleted pages */ ++ int pages_in_use:10; /* number of pages in use */ ++ unsigned block_state:4; /* One of the above block states. NB use unsigned because enum is sometimes an int */ ++ __u32 needs_retiring:1; /* Data has failed on this block, need to get valid data off */ + /* and retire the block. */ +- __u32 skipErasedCheck:1; /* If this is set we can skip the erased check on this block */ +- __u32 gcPrioritise:1; /* An ECC check or blank check has failed on this block. ++ __u32 skip_erased_check:1; /* If this is set we can skip the erased check on this block */ ++ __u32 gc_prioritise:1; /* An ECC check or blank check has failed on this block. + It should be prioritised for GC */ +- __u32 chunkErrorStrikes:3; /* How many times we've had ecc etc failures on this block and tried to reuse it */ ++ __u32 chunk_error_strikes:3; /* How many times we've had ecc etc failures on this block and tried to reuse it */ + + #ifdef CONFIG_YAFFS_YAFFS2 +- __u32 hasShrinkHeader:1; /* This block has at least one shrink object header */ +- __u32 sequenceNumber; /* block sequence number for yaffs2 */ ++ __u32 has_shrink_hdr:1; /* This block has at least one shrink object header */ ++ __u32 seq_number; /* block sequence number for yaffs2 */ + #endif + +-} yaffs_BlockInfo; ++} yaffs_block_info_t; + + /* -------------------------- Object structure -------------------------------*/ + /* This is the object structure as stored on NAND */ + + typedef struct { +- yaffs_ObjectType type; ++ yaffs_obj_type type; + + /* Apply to everything */ +- int parentObjectId; +- __u16 sum__NoLongerUsed; /* checksum of name. No longer used */ ++ int parent_obj_id; ++ __u16 sum_no_longer_used; /* checksum of name. No longer used */ + YCHAR name[YAFFS_MAX_NAME_LENGTH + 1]; + + /* The following apply to directories, files, symlinks - not hard links */ + __u32 yst_mode; /* protection */ + + #ifdef CONFIG_YAFFS_WINCE +- __u32 notForWinCE[5]; ++ __u32 not_for_wince[5]; + #else + __u32 yst_uid; + __u32 yst_gid; +@@ -319,10 +319,10 @@ typedef struct { + #endif + + /* File size applies to files only */ +- int fileSize; ++ int file_size; + + /* Equivalent object id applies to hard links only. */ +- int equivalentObjectId; ++ int equiv_id; + + /* Alias is for symlinks only. */ + YCHAR alias[YAFFS_MAX_ALIAS_LENGTH + 1]; +@@ -334,40 +334,29 @@ typedef struct { + __u32 win_atime[2]; + __u32 win_mtime[2]; + #else +- __u32 roomToGrow[6]; ++ __u32 room_to_grow[6]; + + #endif +- __u32 inbandShadowsObject; +- __u32 inbandIsShrink; ++ __u32 inband_shadowed_obj_id; ++ __u32 inband_is_shrink; + +- __u32 reservedSpace[2]; +- int shadowsObject; /* This object header shadows the specified object if > 0 */ ++ __u32 reserved[2]; ++ int shadows_obj; /* This object header shadows the specified object if > 0 */ + +- /* isShrink applies to object headers written when we shrink the file (ie resize) */ +- __u32 isShrink; ++ /* is_shrink applies to object headers written when we shrink the file (ie resize) */ ++ __u32 is_shrink; + +-} yaffs_ObjectHeader; ++} yaffs_obj_header; + + /*--------------------------- Tnode -------------------------- */ + +-union yaffs_Tnode_union { +-#ifdef CONFIG_YAFFS_TNODE_LIST_DEBUG +- union yaffs_Tnode_union *internal[YAFFS_NTNODES_INTERNAL + 1]; +-#else +- union yaffs_Tnode_union *internal[YAFFS_NTNODES_INTERNAL]; +-#endif +-/* __u16 level0[YAFFS_NTNODES_LEVEL0]; */ ++union yaffs_tnode_union { ++ union yaffs_tnode_union *internal[YAFFS_NTNODES_INTERNAL]; + + }; + +-typedef union yaffs_Tnode_union yaffs_Tnode; ++typedef union yaffs_tnode_union yaffs_tnode_t; + +-struct yaffs_TnodeList_struct { +- struct yaffs_TnodeList_struct *next; +- yaffs_Tnode *tnodes; +-}; +- +-typedef struct yaffs_TnodeList_struct yaffs_TnodeList; + + /*------------------------ Object -----------------------------*/ + /* An object can be one of: +@@ -378,82 +367,85 @@ typedef struct yaffs_TnodeList_struct ya + */ + + typedef struct { +- __u32 fileSize; +- __u32 scannedFileSize; +- __u32 shrinkSize; +- int topLevel; +- yaffs_Tnode *top; +-} yaffs_FileStructure; ++ __u32 file_size; ++ __u32 scanned_size; ++ __u32 shrink_size; ++ int top_level; ++ yaffs_tnode_t *top; ++} yaffs_file_s; + + typedef struct { + struct ylist_head children; /* list of child links */ +-} yaffs_DirectoryStructure; ++ struct ylist_head dirty; /* Entry for list of dirty directories */ ++} yaffs_dir_s; + + typedef struct { + YCHAR *alias; +-} yaffs_SymLinkStructure; ++} yaffs_symlink_t; + + typedef struct { +- struct yaffs_ObjectStruct *equivalentObject; +- __u32 equivalentObjectId; +-} yaffs_HardLinkStructure; ++ struct yaffs_obj_s *equiv_obj; ++ __u32 equiv_id; ++} yaffs_hard_link_s; + + typedef union { +- yaffs_FileStructure fileVariant; +- yaffs_DirectoryStructure directoryVariant; +- yaffs_SymLinkStructure symLinkVariant; +- yaffs_HardLinkStructure hardLinkVariant; +-} yaffs_ObjectVariant; ++ yaffs_file_s file_variant; ++ yaffs_dir_s dir_variant; ++ yaffs_symlink_t symlink_variant; ++ yaffs_hard_link_s hardlink_variant; ++} yaffs_obj_variant; ++ ++ + +-struct yaffs_ObjectStruct { ++struct yaffs_obj_s { + __u8 deleted:1; /* This should only apply to unlinked files. */ +- __u8 softDeleted:1; /* it has also been soft deleted */ ++ __u8 soft_del:1; /* it has also been soft deleted */ + __u8 unlinked:1; /* An unlinked file. The file should be in the unlinked directory.*/ + __u8 fake:1; /* A fake object has no presence on NAND. */ +- __u8 renameAllowed:1; /* Some objects are not allowed to be renamed. */ +- __u8 unlinkAllowed:1; ++ __u8 rename_allowed:1; /* Some objects are not allowed to be renamed. */ ++ __u8 unlink_allowed:1; + __u8 dirty:1; /* the object needs to be written to flash */ + __u8 valid:1; /* When the file system is being loaded up, this + * object might be created before the data + * is available (ie. file data records appear before the header). + */ +- __u8 lazyLoaded:1; /* This object has been lazy loaded and is missing some detail */ ++ __u8 lazy_loaded:1; /* This object has been lazy loaded and is missing some detail */ + +- __u8 deferedFree:1; /* For Linux kernel. Object is removed from NAND, but is ++ __u8 defered_free:1; /* For Linux kernel. Object is removed from NAND, but is + * still in the inode cache. Free of object is defered. + * until the inode is released. + */ +- __u8 beingCreated:1; /* This object is still being created so skip some checks. */ ++ __u8 being_created:1; /* This object is still being created so skip some checks. */ ++ __u8 is_shadowed:1; /* This object is shadowed on the way to being renamed. */ ++ ++ __u8 xattr_known:1; /* We know if this has object has xattribs or not. */ ++ __u8 has_xattr:1; /* This object has xattribs. Valid if xattr_known. */ + + __u8 serial; /* serial number of chunk in NAND. Cached here */ + __u16 sum; /* sum of the name to speed searching */ + +- struct yaffs_DeviceStruct *myDev; /* The device I'm on */ ++ struct yaffs_dev_s *my_dev; /* The device I'm on */ + +- struct ylist_head hashLink; /* list of objects in this hash bucket */ ++ struct ylist_head hash_link; /* list of objects in this hash bucket */ + +- struct ylist_head hardLinks; /* all the equivalent hard linked objects */ ++ struct ylist_head hard_links; /* all the equivalent hard linked objects */ + + /* directory structure stuff */ + /* also used for linking up the free list */ +- struct yaffs_ObjectStruct *parent; ++ struct yaffs_obj_s *parent; + struct ylist_head siblings; + + /* Where's my object header in NAND? */ +- int hdrChunk; ++ int hdr_chunk; + +- int nDataChunks; /* Number of data chunks attached to the file. */ ++ int n_data_chunks; /* Number of data chunks attached to the file. */ + +- __u32 objectId; /* the object id value */ ++ __u32 obj_id; /* the object id value */ + + __u32 yst_mode; + + #ifdef CONFIG_YAFFS_SHORT_NAMES_IN_RAM +- YCHAR shortName[YAFFS_SHORT_NAME_LENGTH + 1]; +-#endif +- +-#ifndef __KERNEL__ +- __u32 inUse; ++ YCHAR short_name[YAFFS_SHORT_NAME_LENGTH + 1]; + #endif + + #ifdef CONFIG_YAFFS_WINCE +@@ -470,53 +462,43 @@ struct yaffs_ObjectStruct { + + __u32 yst_rdev; + +-#ifdef __KERNEL__ +- struct inode *myInode; ++ void *my_inode; + +-#endif ++ yaffs_obj_type variant_type; + +- yaffs_ObjectType variantType; ++ yaffs_obj_variant variant; + +- yaffs_ObjectVariant variant; +- +-}; +- +-typedef struct yaffs_ObjectStruct yaffs_Object; +- +-struct yaffs_ObjectList_struct { +- yaffs_Object *objects; +- struct yaffs_ObjectList_struct *next; + }; + +-typedef struct yaffs_ObjectList_struct yaffs_ObjectList; ++typedef struct yaffs_obj_s yaffs_obj_t; + + typedef struct { + struct ylist_head list; + int count; +-} yaffs_ObjectBucket; ++} yaffs_obj_bucket; + + +-/* yaffs_CheckpointObject holds the definition of an object as dumped ++/* yaffs_checkpt_obj_t holds the definition of an object as dumped + * by checkpointing. + */ + + typedef struct { +- int structType; +- __u32 objectId; +- __u32 parentId; +- int hdrChunk; +- yaffs_ObjectType variantType:3; ++ int struct_type; ++ __u32 obj_id; ++ __u32 parent_id; ++ int hdr_chunk; ++ yaffs_obj_type variant_type:3; + __u8 deleted:1; +- __u8 softDeleted:1; ++ __u8 soft_del:1; + __u8 unlinked:1; + __u8 fake:1; +- __u8 renameAllowed:1; +- __u8 unlinkAllowed:1; ++ __u8 rename_allowed:1; ++ __u8 unlink_allowed:1; + __u8 serial; + +- int nDataChunks; +- __u32 fileSizeOrEquivalentObjectId; +-} yaffs_CheckpointObject; ++ int n_data_chunks; ++ __u32 size_or_equiv_obj; ++} yaffs_checkpt_obj_t; + + /*--------------------- Temporary buffers ---------------- + * +@@ -526,379 +508,462 @@ typedef struct { + typedef struct { + __u8 *buffer; + int line; /* track from whence this buffer was allocated */ +- int maxLine; +-} yaffs_TempBuffer; ++ int max_line; ++} yaffs_buffer_t; + + /*----------------- Device ---------------------------------*/ + +-struct yaffs_DeviceStruct { +- struct ylist_head devList; +- const char *name; +- +- /* Entry parameters set up way early. Yaffs sets up the rest.*/ +- int nDataBytesPerChunk; /* Should be a power of 2 >= 512 */ +- int nChunksPerBlock; /* does not need to be a power of 2 */ +- int spareBytesPerChunk; /* spare area size */ +- int startBlock; /* Start block we're allowed to use */ +- int endBlock; /* End block we're allowed to use */ +- int nReservedBlocks; /* We want this tuneable so that we can reduce */ +- /* reserved blocks on NOR and RAM. */ +- + +- /* Stuff used by the shared space checkpointing mechanism */ +- /* If this value is zero, then this mechanism is disabled */ ++struct yaffs_param_s { ++ const YCHAR *name; + +-/* int nCheckpointReservedBlocks; */ /* Blocks to reserve for checkpoint data */ ++ /* ++ * Entry parameters set up way early. Yaffs sets up the rest. ++ * The structure should be zeroed out before use so that unused ++ * and defualt values are zero. ++ */ ++ ++ int inband_tags; /* Use unband tags */ ++ __u32 total_bytes_per_chunk; /* Should be >= 512, does not need to be a power of 2 */ ++ int chunks_per_block; /* does not need to be a power of 2 */ ++ int spare_bytes_per_chunk; /* spare area size */ ++ int start_block; /* Start block we're allowed to use */ ++ int end_block; /* End block we're allowed to use */ ++ int n_reserved_blocks; /* We want this tuneable so that we can reduce */ ++ /* reserved blocks on NOR and RAM. */ + + +- int nShortOpCaches; /* If <= 0, then short op caching is disabled, else +- * the number of short op caches (don't use too many) ++ int n_caches; /* If <= 0, then short op caching is disabled, else ++ * the number of short op caches (don't use too many). ++ * 10 to 20 is a good bet. + */ ++ int use_nand_ecc; /* Flag to decide whether or not to use NANDECC on data (yaffs1) */ ++ int no_tags_ecc; /* Flag to decide whether or not to do ECC on packed tags (yaffs2) */ + +- int useHeaderFileSize; /* Flag to determine if we should use file sizes from the header */ ++ int is_yaffs2; /* Use yaffs2 mode on this device */ + +- int useNANDECC; /* Flag to decide whether or not to use NANDECC */ ++ int empty_lost_n_found; /* Auto-empty lost+found directory on mount */ + +- void *genericDevice; /* Pointer to device context +- * On an mtd this holds the mtd pointer. +- */ +- void *superBlock; ++ int refresh_period; /* How often we should check to do a block refresh */ ++ ++ /* Checkpoint control. Can be set before or after initialisation */ ++ __u8 skip_checkpt_rd; ++ __u8 skip_checkpt_wr; ++ ++ int enable_xattr; /* Enable xattribs */ + + /* NAND access functions (Must be set before calling YAFFS)*/ + +- int (*writeChunkToNAND) (struct yaffs_DeviceStruct *dev, +- int chunkInNAND, const __u8 *data, +- const yaffs_Spare *spare); +- int (*readChunkFromNAND) (struct yaffs_DeviceStruct *dev, +- int chunkInNAND, __u8 *data, +- yaffs_Spare *spare); +- int (*eraseBlockInNAND) (struct yaffs_DeviceStruct *dev, +- int blockInNAND); +- int (*initialiseNAND) (struct yaffs_DeviceStruct *dev); +- int (*deinitialiseNAND) (struct yaffs_DeviceStruct *dev); ++ int (*write_chunk_fn) (struct yaffs_dev_s *dev, ++ int nand_chunk, const __u8 *data, ++ const yaffs_spare *spare); ++ int (*read_chunk_fn) (struct yaffs_dev_s *dev, ++ int nand_chunk, __u8 *data, ++ yaffs_spare *spare); ++ int (*erase_fn) (struct yaffs_dev_s *dev, ++ int flash_block); ++ int (*initialise_flash_fn) (struct yaffs_dev_s *dev); ++ int (*deinitialise_flash_fn) (struct yaffs_dev_s *dev); + + #ifdef CONFIG_YAFFS_YAFFS2 +- int (*writeChunkWithTagsToNAND) (struct yaffs_DeviceStruct *dev, +- int chunkInNAND, const __u8 *data, +- const yaffs_ExtendedTags *tags); +- int (*readChunkWithTagsFromNAND) (struct yaffs_DeviceStruct *dev, +- int chunkInNAND, __u8 *data, +- yaffs_ExtendedTags *tags); +- int (*markNANDBlockBad) (struct yaffs_DeviceStruct *dev, int blockNo); +- int (*queryNANDBlock) (struct yaffs_DeviceStruct *dev, int blockNo, +- yaffs_BlockState *state, __u32 *sequenceNumber); +-#endif +- +- int isYaffs2; +- +- /* The removeObjectCallback function must be supplied by OS flavours that +- * need it. The Linux kernel does not use this, but yaffs direct does use +- * it to implement the faster readdir ++ int (*write_chunk_tags_fn) (struct yaffs_dev_s *dev, ++ int nand_chunk, const __u8 *data, ++ const yaffs_ext_tags *tags); ++ int (*read_chunk_tags_fn) (struct yaffs_dev_s *dev, ++ int nand_chunk, __u8 *data, ++ yaffs_ext_tags *tags); ++ int (*bad_block_fn) (struct yaffs_dev_s *dev, int block_no); ++ int (*query_block_fn) (struct yaffs_dev_s *dev, int block_no, ++ yaffs_block_state_t *state, __u32 *seq_number); ++#endif ++ ++ /* The remove_obj_fn function must be supplied by OS flavours that ++ * need it. ++ * yaffs direct uses it to implement the faster readdir. ++ * Linux uses it to protect the directory during unlocking. + */ +- void (*removeObjectCallback)(struct yaffs_ObjectStruct *obj); ++ void (*remove_obj_fn)(struct yaffs_obj_s *obj); + +- /* Callback to mark the superblock dirsty */ +- void (*markSuperBlockDirty)(void *superblock); ++ /* Callback to mark the superblock dirty */ ++ void (*sb_dirty_fn)(struct yaffs_dev_s *dev); ++ ++ /* Callback to control garbage collection. */ ++ unsigned (*gc_control)(struct yaffs_dev_s *dev); ++ ++ /* Debug control flags. Don't use unless you know what you're doing */ ++ int use_header_file_size; /* Flag to determine if we should use file sizes from the header */ ++ int disable_lazy_load; /* Disable lazy loading on this device */ ++ int wide_tnodes_disabled; /* Set to disable wide tnodes */ ++ int disable_soft_del; /* yaffs 1 only: Set to disable the use of softdeletion. */ ++ ++ int defered_dir_update; /* Set to defer directory updates */ + +- int wideTnodesDisabled; /* Set to disable wide tnodes */ ++#ifdef CONFIG_YAFFS_AUTO_UNICODE ++ int auto_unicode; ++#endif ++ int always_check_erased; /* Force chunk erased check always on */ ++}; + +- YCHAR *pathDividers; /* String of legal path dividers */ ++typedef struct yaffs_param_s yaffs_param_t; + ++struct yaffs_dev_s { ++ struct yaffs_param_s param; + +- /* End of stuff that must be set before initialisation. */ ++ /* Context storage. Holds extra OS specific data for this device */ + +- /* Checkpoint control. Can be set before or after initialisation */ +- __u8 skipCheckpointRead; +- __u8 skipCheckpointWrite; ++ void *os_context; ++ void *driver_context; ++ ++ struct ylist_head dev_list; + + /* Runtime parameters. Set up by YAFFS. */ ++ int data_bytes_per_chunk; + +- __u16 chunkGroupBits; /* 0 for devices <= 32MB. else log2(nchunks) - 16 */ +- __u16 chunkGroupSize; /* == 2^^chunkGroupBits */ ++ /* Non-wide tnode stuff */ ++ __u16 chunk_grp_bits; /* Number of bits that need to be resolved if ++ * the tnodes are not wide enough. ++ */ ++ __u16 chunk_grp_size; /* == 2^^chunk_grp_bits */ + + /* Stuff to support wide tnodes */ +- __u32 tnodeWidth; +- __u32 tnodeMask; ++ __u32 tnode_width; ++ __u32 tnode_mask; ++ __u32 tnode_size; + + /* Stuff for figuring out file offset to chunk conversions */ +- __u32 chunkShift; /* Shift value */ +- __u32 chunkDiv; /* Divisor after shifting: 1 for power-of-2 sizes */ +- __u32 chunkMask; /* Mask to use for power-of-2 case */ +- +- /* Stuff to handle inband tags */ +- int inbandTags; +- __u32 totalBytesPerChunk; +- +-#ifdef __KERNEL__ +- +- struct semaphore sem; /* Semaphore for waiting on erasure.*/ +- struct semaphore grossLock; /* Gross locking semaphore */ +- __u8 *spareBuffer; /* For mtdif2 use. Don't know the size of the buffer +- * at compile time so we have to allocate it. +- */ +- void (*putSuperFunc) (struct super_block *sb); +-#endif ++ __u32 chunk_shift; /* Shift value */ ++ __u32 chunk_div; /* Divisor after shifting: 1 for power-of-2 sizes */ ++ __u32 chunk_mask; /* Mask to use for power-of-2 case */ + +- int isMounted; + +- int isCheckpointed; ++ ++ int is_mounted; ++ int read_only; ++ int is_checkpointed; + + + /* Stuff to support block offsetting to support start block zero */ +- int internalStartBlock; +- int internalEndBlock; +- int blockOffset; +- int chunkOffset; ++ int internal_start_block; ++ int internal_end_block; ++ int block_offset; ++ int chunk_offset; + + + /* Runtime checkpointing stuff */ +- int checkpointPageSequence; /* running sequence number of checkpoint pages */ +- int checkpointByteCount; +- int checkpointByteOffset; +- __u8 *checkpointBuffer; +- int checkpointOpenForWrite; +- int blocksInCheckpoint; +- int checkpointCurrentChunk; +- int checkpointCurrentBlock; +- int checkpointNextBlock; +- int *checkpointBlockList; +- int checkpointMaxBlocks; +- __u32 checkpointSum; +- __u32 checkpointXor; ++ int checkpt_page_seq; /* running sequence number of checkpoint pages */ ++ int checkpt_byte_count; ++ int checkpt_byte_offs; ++ __u8 *checkpt_buffer; ++ int checkpt_open_write; ++ int blocks_in_checkpt; ++ int checkpt_cur_chunk; ++ int checkpt_cur_block; ++ int checkpt_next_block; ++ int *checkpt_block_list; ++ int checkpt_max_blocks; ++ __u32 checkpt_sum; ++ __u32 checkpt_xor; + +- int nCheckpointBlocksRequired; /* Number of blocks needed to store current checkpoint set */ ++ int checkpoint_blocks_required; /* Number of blocks needed to store current checkpoint set */ + + /* Block Info */ +- yaffs_BlockInfo *blockInfo; +- __u8 *chunkBits; /* bitmap of chunks in use */ +- unsigned blockInfoAlt:1; /* was allocated using alternative strategy */ +- unsigned chunkBitsAlt:1; /* was allocated using alternative strategy */ +- int chunkBitmapStride; /* Number of bytes of chunkBits per block. +- * Must be consistent with nChunksPerBlock. ++ yaffs_block_info_t *block_info; ++ __u8 *chunk_bits; /* bitmap of chunks in use */ ++ unsigned block_info_alt:1; /* was allocated using alternative strategy */ ++ unsigned chunk_bits_alt:1; /* was allocated using alternative strategy */ ++ int chunk_bit_stride; /* Number of bytes of chunk_bits per block. ++ * Must be consistent with chunks_per_block. + */ + +- int nErasedBlocks; +- int allocationBlock; /* Current block being allocated off */ +- __u32 allocationPage; +- int allocationBlockFinder; /* Used to search for next allocation block */ +- +- /* Runtime state */ +- int nTnodesCreated; +- yaffs_Tnode *freeTnodes; +- int nFreeTnodes; +- yaffs_TnodeList *allocatedTnodeList; +- +- int isDoingGC; +- int gcBlock; +- int gcChunk; +- +- int nObjectsCreated; +- yaffs_Object *freeObjects; +- int nFreeObjects; +- +- int nHardLinks; +- +- yaffs_ObjectList *allocatedObjectList; +- +- yaffs_ObjectBucket objectBucket[YAFFS_NOBJECT_BUCKETS]; +- +- int nFreeChunks; +- +- int currentDirtyChecker; /* Used to find current dirtiest block */ +- +- __u32 *gcCleanupList; /* objects to delete at the end of a GC. */ +- int nonAggressiveSkip; /* GC state/mode */ +- +- /* Statistcs */ +- int nPageWrites; +- int nPageReads; +- int nBlockErasures; +- int nErasureFailures; +- int nGCCopies; +- int garbageCollections; +- int passiveGarbageCollections; +- int nRetriedWrites; +- int nRetiredBlocks; +- int eccFixed; +- int eccUnfixed; +- int tagsEccFixed; +- int tagsEccUnfixed; +- int nDeletions; +- int nUnmarkedDeletions; +- +- int hasPendingPrioritisedGCs; /* We think this device might have pending prioritised gcs */ ++ int n_erased_blocks; ++ int alloc_block; /* Current block being allocated off */ ++ __u32 alloc_page; ++ int alloc_block_finder; /* Used to search for next allocation block */ ++ ++ /* Object and Tnode memory management */ ++ void *allocator; ++ int n_obj; ++ int n_tnodes; ++ ++ int n_hardlinks; ++ ++ yaffs_obj_bucket obj_bucket[YAFFS_NOBJECT_BUCKETS]; ++ __u32 bucket_finder; ++ ++ int n_free_chunks; ++ ++ /* Garbage collection control */ ++ __u32 *gc_cleanup_list; /* objects to delete at the end of a GC. */ ++ __u32 n_clean_ups; ++ ++ unsigned has_pending_prioritised_gc; /* We think this device might have pending prioritised gcs */ ++ unsigned gc_disable; ++ unsigned gc_block_finder; ++ unsigned gc_dirtiest; ++ unsigned gc_pages_in_use; ++ unsigned gc_not_done; ++ unsigned gc_block; ++ unsigned gc_chunk; ++ unsigned gc_skip; + + /* Special directories */ +- yaffs_Object *rootDir; +- yaffs_Object *lostNFoundDir; ++ yaffs_obj_t *root_dir; ++ yaffs_obj_t *lost_n_found; + + /* Buffer areas for storing data to recover from write failures TODO +- * __u8 bufferedData[YAFFS_CHUNKS_PER_BLOCK][YAFFS_BYTES_PER_CHUNK]; +- * yaffs_Spare bufferedSpare[YAFFS_CHUNKS_PER_BLOCK]; ++ * __u8 buffered_data[YAFFS_CHUNKS_PER_BLOCK][YAFFS_BYTES_PER_CHUNK]; ++ * yaffs_spare buffered_spare[YAFFS_CHUNKS_PER_BLOCK]; + */ + +- int bufferedBlock; /* Which block is buffered here? */ +- int doingBufferedBlockRewrite; +- +- yaffs_ChunkCache *srCache; +- int srLastUse; ++ int buffered_block; /* Which block is buffered here? */ ++ int doing_buffered_block_rewrite; + +- int cacheHits; ++ yaffs_cache_t *cache; ++ int cache_last_use; + + /* Stuff for background deletion and unlinked files.*/ +- yaffs_Object *unlinkedDir; /* Directory where unlinked and deleted files live. */ +- yaffs_Object *deletedDir; /* Directory where deleted objects are sent to disappear. */ +- yaffs_Object *unlinkedDeletion; /* Current file being background deleted.*/ +- int nDeletedFiles; /* Count of files awaiting deletion;*/ +- int nUnlinkedFiles; /* Count of unlinked files. */ +- int nBackgroundDeletions; /* Count of background deletions. */ +- ++ yaffs_obj_t *unlinked_dir; /* Directory where unlinked and deleted files live. */ ++ yaffs_obj_t *del_dir; /* Directory where deleted objects are sent to disappear. */ ++ yaffs_obj_t *unlinked_deletion; /* Current file being background deleted.*/ ++ int n_deleted_files; /* Count of files awaiting deletion;*/ ++ int n_unlinked_files; /* Count of unlinked files. */ ++ int n_bg_deletions; /* Count of background deletions. */ + + /* Temporary buffer management */ +- yaffs_TempBuffer tempBuffer[YAFFS_N_TEMP_BUFFERS]; +- int maxTemp; +- int tempInUse; +- int unmanagedTempAllocations; +- int unmanagedTempDeallocations; ++ yaffs_buffer_t temp_buffer[YAFFS_N_TEMP_BUFFERS]; ++ int max_temp; ++ int temp_in_use; ++ int unmanaged_buffer_allocs; ++ int unmanaged_buffer_deallocs; + + /* yaffs2 runtime stuff */ +- unsigned sequenceNumber; /* Sequence number of currently allocating block */ +- unsigned oldestDirtySequence; ++ unsigned seq_number; /* Sequence number of currently allocating block */ ++ unsigned oldest_dirty_seq; ++ unsigned oldest_dirty_block; ++ ++ /* Block refreshing */ ++ int refresh_skip; /* A skip down counter. Refresh happens when this gets to zero. */ ++ ++ /* Dirty directory handling */ ++ struct ylist_head dirty_dirs; /* List of dirty directories */ ++ ++ ++ /* Statistcs */ ++ __u32 n_page_writes; ++ __u32 n_page_reads; ++ __u32 n_erasures; ++ __u32 n_erase_failures; ++ __u32 n_gc_copies; ++ __u32 all_gcs; ++ __u32 passive_gc_count; ++ __u32 oldest_dirty_gc_count; ++ __u32 n_gc_blocks; ++ __u32 bg_gcs; ++ __u32 n_retired_writes; ++ __u32 n_retired_blocks; ++ __u32 n_ecc_fixed; ++ __u32 n_ecc_unfixed; ++ __u32 n_tags_ecc_fixed; ++ __u32 n_tags_ecc_unfixed; ++ __u32 n_deletions; ++ __u32 n_unmarked_deletions; ++ __u32 refresh_count; ++ __u32 cache_hits; + + }; + +-typedef struct yaffs_DeviceStruct yaffs_Device; ++typedef struct yaffs_dev_s yaffs_dev_t; + + /* The static layout of block usage etc is stored in the super block header */ + typedef struct { + int StructType; + int version; +- int checkpointStartBlock; +- int checkpointEndBlock; +- int startBlock; +- int endBlock; ++ int checkpt_start_block; ++ int checkpt_end_block; ++ int start_block; ++ int end_block; + int rfu[100]; +-} yaffs_SuperBlockHeader; ++} yaffs_sb_header; + + /* The CheckpointDevice structure holds the device information that changes at runtime and + * must be preserved over unmount/mount cycles. + */ + typedef struct { +- int structType; +- int nErasedBlocks; +- int allocationBlock; /* Current block being allocated off */ +- __u32 allocationPage; +- int nFreeChunks; +- +- int nDeletedFiles; /* Count of files awaiting deletion;*/ +- int nUnlinkedFiles; /* Count of unlinked files. */ +- int nBackgroundDeletions; /* Count of background deletions. */ ++ int struct_type; ++ int n_erased_blocks; ++ int alloc_block; /* Current block being allocated off */ ++ __u32 alloc_page; ++ int n_free_chunks; ++ ++ int n_deleted_files; /* Count of files awaiting deletion;*/ ++ int n_unlinked_files; /* Count of unlinked files. */ ++ int n_bg_deletions; /* Count of background deletions. */ + + /* yaffs2 runtime stuff */ +- unsigned sequenceNumber; /* Sequence number of currently allocating block */ +- unsigned oldestDirtySequence; ++ unsigned seq_number; /* Sequence number of currently allocating block */ + +-} yaffs_CheckpointDevice; ++} yaffs_checkpt_dev_t; + + + typedef struct { +- int structType; ++ int struct_type; + __u32 magic; + __u32 version; + __u32 head; +-} yaffs_CheckpointValidity; ++} yaffs_checkpt_validty_t; ++ ++ ++struct yaffs_shadow_fixer_s { ++ int obj_id; ++ int shadowed_id; ++ struct yaffs_shadow_fixer_s *next; ++}; ++ ++/* Structure for doing xattr modifications */ ++typedef struct { ++ int set; /* If 0 then this is a deletion */ ++ const YCHAR *name; ++ const void *data; ++ int size; ++ int flags; ++ int result; ++}yaffs_xattr_mod; + + + /*----------------------- YAFFS Functions -----------------------*/ + +-int yaffs_GutsInitialise(yaffs_Device *dev); +-void yaffs_Deinitialise(yaffs_Device *dev); ++int yaffs_guts_initialise(yaffs_dev_t *dev); ++void yaffs_deinitialise(yaffs_dev_t *dev); + +-int yaffs_GetNumberOfFreeChunks(yaffs_Device *dev); ++int yaffs_get_n_free_chunks(yaffs_dev_t *dev); + +-int yaffs_RenameObject(yaffs_Object *oldDir, const YCHAR *oldName, +- yaffs_Object *newDir, const YCHAR *newName); ++int yaffs_rename_obj(yaffs_obj_t *old_dir, const YCHAR *old_name, ++ yaffs_obj_t *new_dir, const YCHAR *new_name); + +-int yaffs_Unlink(yaffs_Object *dir, const YCHAR *name); +-int yaffs_DeleteObject(yaffs_Object *obj); ++int yaffs_unlinker(yaffs_obj_t *dir, const YCHAR *name); ++int yaffs_del_obj(yaffs_obj_t *obj); + +-int yaffs_GetObjectName(yaffs_Object *obj, YCHAR *name, int buffSize); +-int yaffs_GetObjectFileLength(yaffs_Object *obj); +-int yaffs_GetObjectInode(yaffs_Object *obj); +-unsigned yaffs_GetObjectType(yaffs_Object *obj); +-int yaffs_GetObjectLinkCount(yaffs_Object *obj); ++int yaffs_get_obj_name(yaffs_obj_t *obj, YCHAR *name, int buffer_size); ++int yaffs_get_obj_length(yaffs_obj_t *obj); ++int yaffs_get_obj_inode(yaffs_obj_t *obj); ++unsigned yaffs_get_obj_type(yaffs_obj_t *obj); ++int yaffs_get_obj_link_count(yaffs_obj_t *obj); + +-int yaffs_SetAttributes(yaffs_Object *obj, struct iattr *attr); +-int yaffs_GetAttributes(yaffs_Object *obj, struct iattr *attr); ++int yaffs_set_attribs(yaffs_obj_t *obj, struct iattr *attr); ++int yaffs_get_attribs(yaffs_obj_t *obj, struct iattr *attr); + + /* File operations */ +-int yaffs_ReadDataFromFile(yaffs_Object *obj, __u8 *buffer, loff_t offset, +- int nBytes); +-int yaffs_WriteDataToFile(yaffs_Object *obj, const __u8 *buffer, loff_t offset, +- int nBytes, int writeThrough); +-int yaffs_ResizeFile(yaffs_Object *obj, loff_t newSize); ++int yaffs_file_rd(yaffs_obj_t *obj, __u8 *buffer, loff_t offset, ++ int n_bytes); ++int yaffs_wr_file(yaffs_obj_t *obj, const __u8 *buffer, loff_t offset, ++ int n_bytes, int write_trhrough); ++int yaffs_resize_file(yaffs_obj_t *obj, loff_t new_size); + +-yaffs_Object *yaffs_MknodFile(yaffs_Object *parent, const YCHAR *name, ++yaffs_obj_t *yaffs_create_file(yaffs_obj_t *parent, const YCHAR *name, + __u32 mode, __u32 uid, __u32 gid); +-int yaffs_FlushFile(yaffs_Object *obj, int updateTime); ++ ++int yaffs_flush_file(yaffs_obj_t *obj, int update_time, int data_sync); + + /* Flushing and checkpointing */ +-void yaffs_FlushEntireDeviceCache(yaffs_Device *dev); ++void yaffs_flush_whole_cache(yaffs_dev_t *dev); + +-int yaffs_CheckpointSave(yaffs_Device *dev); +-int yaffs_CheckpointRestore(yaffs_Device *dev); ++int yaffs_checkpoint_save(yaffs_dev_t *dev); ++int yaffs_checkpoint_restore(yaffs_dev_t *dev); + + /* Directory operations */ +-yaffs_Object *yaffs_MknodDirectory(yaffs_Object *parent, const YCHAR *name, ++yaffs_obj_t *yaffs_create_dir(yaffs_obj_t *parent, const YCHAR *name, + __u32 mode, __u32 uid, __u32 gid); +-yaffs_Object *yaffs_FindObjectByName(yaffs_Object *theDir, const YCHAR *name); +-int yaffs_ApplyToDirectoryChildren(yaffs_Object *theDir, +- int (*fn) (yaffs_Object *)); ++yaffs_obj_t *yaffs_find_by_name(yaffs_obj_t *the_dir, const YCHAR *name); ++int yaffs_ApplyToDirectoryChildren(yaffs_obj_t *the_dir, ++ int (*fn) (yaffs_obj_t *)); + +-yaffs_Object *yaffs_FindObjectByNumber(yaffs_Device *dev, __u32 number); ++yaffs_obj_t *yaffs_find_by_number(yaffs_dev_t *dev, __u32 number); + + /* Link operations */ +-yaffs_Object *yaffs_Link(yaffs_Object *parent, const YCHAR *name, +- yaffs_Object *equivalentObject); ++yaffs_obj_t *yaffs_link_obj(yaffs_obj_t *parent, const YCHAR *name, ++ yaffs_obj_t *equiv_obj); + +-yaffs_Object *yaffs_GetEquivalentObject(yaffs_Object *obj); ++yaffs_obj_t *yaffs_get_equivalent_obj(yaffs_obj_t *obj); + + /* Symlink operations */ +-yaffs_Object *yaffs_MknodSymLink(yaffs_Object *parent, const YCHAR *name, ++yaffs_obj_t *yaffs_create_symlink(yaffs_obj_t *parent, const YCHAR *name, + __u32 mode, __u32 uid, __u32 gid, + const YCHAR *alias); +-YCHAR *yaffs_GetSymlinkAlias(yaffs_Object *obj); ++YCHAR *yaffs_get_symlink_alias(yaffs_obj_t *obj); + + /* Special inodes (fifos, sockets and devices) */ +-yaffs_Object *yaffs_MknodSpecial(yaffs_Object *parent, const YCHAR *name, ++yaffs_obj_t *yaffs_create_special(yaffs_obj_t *parent, const YCHAR *name, + __u32 mode, __u32 uid, __u32 gid, __u32 rdev); + ++ ++int yaffs_set_xattrib(yaffs_obj_t *obj, const YCHAR *name, const void * value, int size, int flags); ++int yaffs_get_xattrib(yaffs_obj_t *obj, const YCHAR *name, void *value, int size); ++int yaffs_list_xattrib(yaffs_obj_t *obj, char *buffer, int size); ++int yaffs_remove_xattrib(yaffs_obj_t *obj, const YCHAR *name); ++ + /* Special directories */ +-yaffs_Object *yaffs_Root(yaffs_Device *dev); +-yaffs_Object *yaffs_LostNFound(yaffs_Device *dev); ++yaffs_obj_t *yaffs_root(yaffs_dev_t *dev); ++yaffs_obj_t *yaffs_lost_n_found(yaffs_dev_t *dev); + + #ifdef CONFIG_YAFFS_WINCE + /* CONFIG_YAFFS_WINCE special stuff */ +-void yfsd_WinFileTimeNow(__u32 target[2]); ++void yfsd_win_file_time_now(__u32 target[2]); + #endif + +-#ifdef __KERNEL__ ++void yaffs_handle_defered_free(yaffs_obj_t *obj); + +-void yaffs_HandleDeferedFree(yaffs_Object *obj); +-#endif ++void yaffs_update_dirty_dirs(yaffs_dev_t *dev); ++ ++int yaffs_bg_gc(yaffs_dev_t *dev, unsigned urgency); + + /* Debug dump */ +-int yaffs_DumpObject(yaffs_Object *obj); ++int yaffs_dump_obj(yaffs_obj_t *obj); + +-void yaffs_GutsTest(yaffs_Device *dev); ++void yaffs_guts_test(yaffs_dev_t *dev); + +-/* A few useful functions */ +-void yaffs_InitialiseTags(yaffs_ExtendedTags *tags); +-void yaffs_DeleteChunk(yaffs_Device *dev, int chunkId, int markNAND, int lyn); +-int yaffs_CheckFF(__u8 *buffer, int nBytes); +-void yaffs_HandleChunkError(yaffs_Device *dev, yaffs_BlockInfo *bi); ++/* A few useful functions to be used within the core files*/ ++void yaffs_chunk_del(yaffs_dev_t *dev, int chunk_id, int mark_flash, int lyn); ++int yaffs_check_ff(__u8 *buffer, int n_bytes); ++void yaffs_handle_chunk_error(yaffs_dev_t *dev, yaffs_block_info_t *bi); ++ ++__u8 *yaffs_get_temp_buffer(yaffs_dev_t *dev, int line_no); ++void yaffs_release_temp_buffer(yaffs_dev_t *dev, __u8 *buffer, int line_no); ++ ++yaffs_obj_t *yaffs_find_or_create_by_number(yaffs_dev_t *dev, ++ int number, ++ yaffs_obj_type type); ++int yaffs_put_chunk_in_file(yaffs_obj_t *in, int inode_chunk, ++ int nand_chunk, int in_scan); ++void yaffs_set_obj_name(yaffs_obj_t *obj, const YCHAR *name); ++void yaffs_set_obj_name_from_oh(yaffs_obj_t *obj, const yaffs_obj_header *oh); ++void yaffs_add_obj_to_dir(yaffs_obj_t *directory, ++ yaffs_obj_t *obj); ++YCHAR *yaffs_clone_str(const YCHAR *str); ++void yaffs_link_fixup(yaffs_dev_t *dev, yaffs_obj_t *hard_list); ++void yaffs_block_became_dirty(yaffs_dev_t *dev, int block_no); ++int yaffs_update_oh(yaffs_obj_t *in, const YCHAR *name, ++ int force, int is_shrink, int shadows, ++ yaffs_xattr_mod *xop); ++void yaffs_handle_shadowed_obj(yaffs_dev_t *dev, int obj_id, ++ int backward_scanning); ++int yaffs_check_alloc_available(yaffs_dev_t *dev, int n_chunks); ++yaffs_tnode_t *yaffs_get_tnode(yaffs_dev_t *dev); ++yaffs_tnode_t *yaffs_add_find_tnode_0(yaffs_dev_t *dev, ++ yaffs_file_s *file_struct, ++ __u32 chunk_id, ++ yaffs_tnode_t *passed_tn); ++ ++int yaffs_do_file_wr(yaffs_obj_t *in, const __u8 *buffer, loff_t offset, ++ int n_bytes, int write_trhrough); ++void yaffs_resize_file_down( yaffs_obj_t *obj, loff_t new_size); ++void yaffs_skip_rest_of_block(yaffs_dev_t *dev); ++ ++int yaffs_count_free_chunks(yaffs_dev_t *dev); ++ ++yaffs_tnode_t *yaffs_find_tnode_0(yaffs_dev_t *dev, ++ yaffs_file_s *file_struct, ++ __u32 chunk_id); + +-__u8 *yaffs_GetTempBuffer(yaffs_Device *dev, int lineNo); +-void yaffs_ReleaseTempBuffer(yaffs_Device *dev, __u8 *buffer, int lineNo); ++__u32 yaffs_get_group_base(yaffs_dev_t *dev, yaffs_tnode_t *tn, unsigned pos); + + #endif +--- a/fs/yaffs2/yaffsinterface.h ++++ b/fs/yaffs2/yaffsinterface.h +@@ -1,7 +1,7 @@ + /* + * YAFFS: Yet another Flash File System . A NAND-flash specific file system. + * +- * Copyright (C) 2002-2007 Aleph One Ltd. ++ * Copyright (C) 2002-2010 Aleph One Ltd. + * for Toby Churchill Ltd and Brightstar Engineering + * + * Created by Charles Manning +@@ -16,6 +16,6 @@ + #ifndef __YAFFSINTERFACE_H__ + #define __YAFFSINTERFACE_H__ + +-int yaffs_Initialise(unsigned nBlocks); ++int yaffs_initialise(unsigned nBlocks); + + #endif +--- /dev/null ++++ b/fs/yaffs2/yaffs_linux_allocator.c +@@ -0,0 +1,200 @@ ++/* ++ * YAFFS: Yet another Flash File System . A NAND-flash specific file system. ++ * ++ * Copyright (C) 2002-2010 Aleph One Ltd. ++ * for Toby Churchill Ltd and Brightstar Engineering ++ * ++ * Created by Charles Manning ++ * ++ * This program is free software; you can redistribute it and/or modify ++ * it under the terms of the GNU Lesser General Public License version 2.1 as ++ * published by the Free Software Foundation. ++ * ++ * Note: Only YAFFS headers are LGPL, YAFFS C code is covered by GPL. ++ * ++ * Note: Tis code is currently unused. Being checked in in case it becomes useful. ++ */ ++ ++ ++#include "yaffs_allocator.h" ++#include "yaffs_guts.h" ++#include "yaffs_trace.h" ++#include "yportenv.h" ++#include "yaffs_linux.h" ++/* ++ * Start out with the same allocator as yaffs direct. ++ * Todo: Change to Linux slab allocator. ++ */ ++ ++ ++ ++#define NAMELEN 20 ++struct yaffs_AllocatorStruct { ++ char tnode_name[NAMELEN+1]; ++ char object_name[NAMELEN+1]; ++ struct kmem_cache *tnode_cache; ++ struct kmem_cache *object_cache; ++}; ++ ++typedef struct yaffs_AllocatorStruct yaffs_Allocator; ++ ++int mount_id; ++ ++void yaffs_deinit_raw_tnodes_and_objs(yaffs_dev_t *dev) ++{ ++ yaffs_Allocator *allocator = (yaffs_Allocator *)dev->allocator; ++ ++ T(YAFFS_TRACE_ALLOCATE,(TSTR("Deinitialising yaffs allocator\n"))); ++ ++ if(allocator){ ++ if(allocator->tnode_cache){ ++ kmem_cache_destroy(allocator->tnode_cache); ++ allocator->tnode_cache = NULL; ++ } else { ++ T(YAFFS_TRACE_ALWAYS, ++ (TSTR("NULL tnode cache\n"))); ++ YBUG(); ++ } ++ ++ if(allocator->object_cache){ ++ kmem_cache_destroy(allocator->object_cache); ++ allocator->object_cache = NULL; ++ } else { ++ T(YAFFS_TRACE_ALWAYS, ++ (TSTR("NULL object cache\n"))); ++ YBUG(); ++ } ++ ++ YFREE(allocator); ++ ++ } else { ++ T(YAFFS_TRACE_ALWAYS, ++ (TSTR("Deinitialising NULL allocator\n"))); ++ YBUG(); ++ } ++ dev->allocator = NULL; ++} ++ ++ ++static void fake_ctor0(void *data){data = data;} ++static void fake_ctor1(void *data){data = data;} ++static void fake_ctor2(void *data){data = data;} ++static void fake_ctor3(void *data){data = data;} ++static void fake_ctor4(void *data){data = data;} ++static void fake_ctor5(void *data){data = data;} ++static void fake_ctor6(void *data){data = data;} ++static void fake_ctor7(void *data){data = data;} ++static void fake_ctor8(void *data){data = data;} ++static void fake_ctor9(void *data){data = data;} ++ ++static void (*fake_ctor_list[10]) (void *) = { ++ fake_ctor0, ++ fake_ctor1, ++ fake_ctor2, ++ fake_ctor3, ++ fake_ctor4, ++ fake_ctor5, ++ fake_ctor6, ++ fake_ctor7, ++ fake_ctor8, ++ fake_ctor9, ++}; ++ ++void yaffs_init_raw_tnodes_and_objs(yaffs_dev_t *dev) ++{ ++ yaffs_Allocator *allocator; ++ unsigned mount_id = yaffs_dev_to_lc(dev)->mount_id; ++ ++ T(YAFFS_TRACE_ALLOCATE,(TSTR("Initialising yaffs allocator\n"))); ++ ++ if(dev->allocator) ++ YBUG(); ++ else if(mount_id >= 10){ ++ T(YAFFS_TRACE_ALWAYS,(TSTR("Bad mount_id %u\n"),mount_id)); ++ } else { ++ allocator = YMALLOC(sizeof(yaffs_Allocator)); ++ memset(allocator,0,sizeof(yaffs_Allocator)); ++ dev->allocator = allocator; ++ ++ if(!dev->allocator){ ++ T(YAFFS_TRACE_ALWAYS, ++ (TSTR("yaffs allocator creation failed\n"))); ++ YBUG(); ++ return; ++ ++ } ++ ++ sprintf(allocator->tnode_name,"yaffs_t_%u",mount_id); ++ sprintf(allocator->object_name,"yaffs_o_%u",mount_id); ++ ++ allocator->tnode_cache = ++ kmem_cache_create(allocator->tnode_name, ++ dev->tnode_size, ++ 0, 0, ++ fake_ctor_list[mount_id]); ++ if(allocator->tnode_cache) ++ T(YAFFS_TRACE_ALLOCATE, ++ (TSTR("tnode cache \"%s\" %p\n"), ++ allocator->tnode_name,allocator->tnode_cache)); ++ else { ++ T(YAFFS_TRACE_ALWAYS, ++ (TSTR("yaffs cache creation failed\n"))); ++ YBUG(); ++ } ++ ++ ++ allocator->object_cache = ++ kmem_cache_create(allocator->object_name, ++ sizeof(yaffs_obj_t), ++ 0, 0, ++ fake_ctor_list[mount_id]); ++ ++ if(allocator->object_cache) ++ T(YAFFS_TRACE_ALLOCATE, ++ (TSTR("object cache \"%s\" %p\n"), ++ allocator->object_name,allocator->object_cache)); ++ ++ else { ++ T(YAFFS_TRACE_ALWAYS, ++ (TSTR("yaffs cache creation failed\n"))); ++ YBUG(); ++ } ++ } ++} ++ ++ ++yaffs_tnode_t *yaffs_alloc_raw_tnode(yaffs_dev_t *dev) ++{ ++ yaffs_Allocator *allocator = dev->allocator; ++ if(!allocator || !allocator->tnode_cache){ ++ YBUG(); ++ return NULL; ++ } ++ return kmem_cache_alloc(allocator->tnode_cache, GFP_NOFS); ++} ++ ++void yaffs_free_raw_tnode(yaffs_dev_t *dev, yaffs_tnode_t *tn) ++{ ++ yaffs_Allocator *allocator = dev->allocator; ++ kmem_cache_free(allocator->tnode_cache,tn); ++} ++ ++yaffs_obj_t *yaffs_alloc_raw_obj(yaffs_dev_t *dev) ++{ ++ yaffs_Allocator *allocator = dev->allocator; ++ if(!allocator){ ++ YBUG(); ++ return NULL; ++ } ++ if(!allocator->object_cache){ ++ YBUG(); ++ return NULL; ++ } ++ return kmem_cache_alloc(allocator->object_cache, GFP_NOFS); ++} ++ ++void yaffs_free_raw_obj(yaffs_dev_t *dev, yaffs_obj_t *obj) ++{ ++ yaffs_Allocator *allocator = dev->allocator; ++ kmem_cache_free(allocator->object_cache,obj); ++} +--- /dev/null ++++ b/fs/yaffs2/yaffs_linux.h +@@ -0,0 +1,43 @@ ++/* ++ * YAFFS: Yet another Flash File System . A NAND-flash specific file system. ++ * ++ * Copyright (C) 2002-2010 Aleph One Ltd. ++ * for Toby Churchill Ltd and Brightstar Engineering ++ * ++ * Created by Charles Manning ++ * ++ * This program is free software; you can redistribute it and/or modify ++ * it under the terms of the GNU Lesser General Public License version 2.1 as ++ * published by the Free Software Foundation. ++ * ++ * Note: Only YAFFS headers are LGPL, YAFFS C code is covered by GPL. ++ */ ++ ++#ifndef __YAFFS_LINUX_H__ ++#define __YAFFS_LINUX_H__ ++ ++#include "devextras.h" ++#include "yportenv.h" ++ ++struct yaffs_LinuxContext { ++ struct ylist_head contextList; /* List of these we have mounted */ ++ struct yaffs_dev_s *dev; ++ struct super_block * superBlock; ++ struct task_struct *bgThread; /* Background thread for this device */ ++ int bgRunning; ++ struct semaphore grossLock; /* Gross locking semaphore */ ++ __u8 *spareBuffer; /* For mtdif2 use. Don't know the size of the buffer ++ * at compile time so we have to allocate it. ++ */ ++ struct ylist_head searchContexts; ++ void (*putSuperFunc)(struct super_block *sb); ++ ++ struct task_struct *readdirProcess; ++ unsigned mount_id; ++}; ++ ++#define yaffs_dev_to_lc(dev) ((struct yaffs_LinuxContext *)((dev)->os_context)) ++#define yaffs_dev_to_mtd(dev) ((struct mtd_info *)((dev)->driver_context)) ++ ++#endif ++ +--- /dev/null ++++ b/fs/yaffs2/yaffs_list.h +@@ -0,0 +1,127 @@ ++/* ++ * YAFFS: Yet another Flash File System . A NAND-flash specific file system. ++ * ++ * Copyright (C) 2002-2010 Aleph One Ltd. ++ * for Toby Churchill Ltd and Brightstar Engineering ++ * ++ * Created by Charles Manning ++ * ++ * This program is free software; you can redistribute it and/or modify ++ * it under the terms of the GNU Lesser General Public License version 2.1 as ++ * published by the Free Software Foundation. ++ * ++ * Note: Only YAFFS headers are LGPL, YAFFS C code is covered by GPL. ++ */ ++ ++/* ++ * This file is just holds extra declarations of macros that would normally ++ * be providesd in the Linux kernel. These macros have been written from ++ * scratch but are functionally equivalent to the Linux ones. ++ * ++ */ ++ ++#ifndef __YAFFS_LIST_H__ ++#define __YAFFS_LIST_H__ ++ ++ ++#include "yportenv.h" ++ ++/* ++ * This is a simple doubly linked list implementation that matches the ++ * way the Linux kernel doubly linked list implementation works. ++ */ ++ ++struct ylist_head { ++ struct ylist_head *next; /* next in chain */ ++ struct ylist_head *prev; /* previous in chain */ ++}; ++ ++ ++/* Initialise a static list */ ++#define YLIST_HEAD(name) \ ++struct ylist_head name = { &(name), &(name)} ++ ++ ++ ++/* Initialise a list head to an empty list */ ++#define YINIT_LIST_HEAD(p) \ ++do { \ ++ (p)->next = (p);\ ++ (p)->prev = (p); \ ++} while (0) ++ ++ ++/* Add an element to a list */ ++static Y_INLINE void ylist_add(struct ylist_head *newEntry, ++ struct ylist_head *list) ++{ ++ struct ylist_head *listNext = list->next; ++ ++ list->next = newEntry; ++ newEntry->prev = list; ++ newEntry->next = listNext; ++ listNext->prev = newEntry; ++ ++} ++ ++static Y_INLINE void ylist_add_tail(struct ylist_head *newEntry, ++ struct ylist_head *list) ++{ ++ struct ylist_head *listPrev = list->prev; ++ ++ list->prev = newEntry; ++ newEntry->next = list; ++ newEntry->prev = listPrev; ++ listPrev->next = newEntry; ++ ++} ++ ++ ++/* Take an element out of its current list, with or without ++ * reinitialising the links.of the entry*/ ++static Y_INLINE void ylist_del(struct ylist_head *entry) ++{ ++ struct ylist_head *listNext = entry->next; ++ struct ylist_head *listPrev = entry->prev; ++ ++ listNext->prev = listPrev; ++ listPrev->next = listNext; ++ ++} ++ ++static Y_INLINE void ylist_del_init(struct ylist_head *entry) ++{ ++ ylist_del(entry); ++ entry->next = entry->prev = entry; ++} ++ ++ ++/* Test if the list is empty */ ++static Y_INLINE int ylist_empty(struct ylist_head *entry) ++{ ++ return (entry->next == entry); ++} ++ ++ ++/* ylist_entry takes a pointer to a list entry and offsets it to that ++ * we can find a pointer to the object it is embedded in. ++ */ ++ ++ ++#define ylist_entry(entry, type, member) \ ++ ((type *)((char *)(entry)-(unsigned long)(&((type *)NULL)->member))) ++ ++ ++/* ylist_for_each and list_for_each_safe iterate over lists. ++ * ylist_for_each_safe uses temporary storage to make the list delete safe ++ */ ++ ++#define ylist_for_each(itervar, list) \ ++ for (itervar = (list)->next; itervar != (list); itervar = itervar->next) ++ ++#define ylist_for_each_safe(itervar, saveVar, list) \ ++ for (itervar = (list)->next, saveVar = (list)->next->next; \ ++ itervar != (list); itervar = saveVar, saveVar = saveVar->next) ++ ++ ++#endif +--- a/fs/yaffs2/yaffs_mtdif1.c ++++ b/fs/yaffs2/yaffs_mtdif1.c +@@ -2,7 +2,7 @@ + * YAFFS: Yet another FFS. A NAND-flash specific file system. + * yaffs_mtdif1.c NAND mtd interface functions for small-page NAND. + * +- * Copyright (C) 2002 Aleph One Ltd. ++ * Copyright (C) 2002-2010 Aleph One Ltd. + * for Toby Churchill Ltd and Brightstar Engineering + * + * This program is free software; you can redistribute it and/or modify +@@ -18,15 +18,17 @@ + * + * These functions are invoked via function pointers in yaffs_nand.c. + * This replaces functionality provided by functions in yaffs_mtdif.c +- * and the yaffs_TagsCompatability functions in yaffs_tagscompat.c that are ++ * and the yaffs_tags_tCompatability functions in yaffs_tagscompat.c that are + * called in yaffs_mtdif.c when the function pointers are NULL. +- * We assume the MTD layer is performing ECC (useNANDECC is true). ++ * We assume the MTD layer is performing ECC (use_nand_ecc is true). + */ + + #include "yportenv.h" ++#include "yaffs_trace.h" + #include "yaffs_guts.h" + #include "yaffs_packedtags1.h" +-#include "yaffs_tagscompat.h" /* for yaffs_CalcTagsECC */ ++#include "yaffs_tagscompat.h" /* for yaffs_calc_tags_ecc */ ++#include "yaffs_linux.h" + + #include "linux/kernel.h" + #include "linux/version.h" +@@ -36,8 +38,6 @@ + /* Don't compile this module if we don't have MTD's mtd_oob_ops interface */ + #if (MTD_VERSION_CODE > MTD_VERSION(2, 6, 17)) + +-const char *yaffs_mtdif1_c_version = "$Id: yaffs_mtdif1.c,v 1.10 2009-03-09 07:41:10 charles Exp $"; +- + #ifndef CONFIG_YAFFS_9BYTE_TAGS + # define YTAG1_SIZE 8 + #else +@@ -51,12 +51,12 @@ const char *yaffs_mtdif1_c_version = "$I + * adjust 'oobfree' to match your existing Yaffs data. + * + * This nand_ecclayout scatters/gathers to/from the old-yaffs layout with the +- * pageStatus byte (at NAND spare offset 4) scattered/gathered from/to ++ * page_status byte (at NAND spare offset 4) scattered/gathered from/to + * the 9th byte. + * + * Old-style on-NAND format: T0,T1,T2,T3,P,B,T4,T5,E0,E1,E2,T6,T7,E3,E4,E5 +- * We have/need PackedTags1 plus pageStatus: T0,T1,T2,T3,T4,T5,T6,T7,P +- * where Tn are the tag bytes, En are MTD's ECC bytes, P is the pageStatus ++ * We have/need PackedTags1 plus page_status: T0,T1,T2,T3,T4,T5,T6,T7,P ++ * where Tn are the tag bytes, En are MTD's ECC bytes, P is the page_status + * byte and B is the small-page bad-block indicator byte. + */ + static struct nand_ecclayout nand_oob_16 = { +@@ -88,42 +88,40 @@ static struct nand_ecclayout nand_oob_16 + * Any underlying MTD error results in YAFFS_FAIL. + * Returns YAFFS_OK or YAFFS_FAIL. + */ +-int nandmtd1_WriteChunkWithTagsToNAND(yaffs_Device *dev, +- int chunkInNAND, const __u8 *data, const yaffs_ExtendedTags *etags) ++int nandmtd1_WriteChunkWithTagsToNAND(yaffs_dev_t *dev, ++ int nand_chunk, const __u8 *data, const yaffs_ext_tags *etags) + { +- struct mtd_info *mtd = dev->genericDevice; +- int chunkBytes = dev->nDataBytesPerChunk; +- loff_t addr = ((loff_t)chunkInNAND) * chunkBytes; ++ struct mtd_info *mtd = yaffs_dev_to_mtd(dev); ++ int chunkBytes = dev->data_bytes_per_chunk; ++ loff_t addr = ((loff_t)nand_chunk) * chunkBytes; + struct mtd_oob_ops ops; + yaffs_PackedTags1 pt1; + int retval; + +- /* we assume that PackedTags1 and yaffs_Tags are compatible */ ++ /* we assume that PackedTags1 and yaffs_tags_t are compatible */ + compile_time_assertion(sizeof(yaffs_PackedTags1) == 12); +- compile_time_assertion(sizeof(yaffs_Tags) == 8); +- +- dev->nPageWrites++; ++ compile_time_assertion(sizeof(yaffs_tags_t) == 8); + + yaffs_PackTags1(&pt1, etags); +- yaffs_CalcTagsECC((yaffs_Tags *)&pt1); ++ yaffs_calc_tags_ecc((yaffs_tags_t *)&pt1); + + /* When deleting a chunk, the upper layer provides only skeletal +- * etags, one with chunkDeleted set. However, we need to update the ++ * etags, one with is_deleted set. However, we need to update the + * tags, not erase them completely. So we use the NAND write property + * that only zeroed-bits stick and set tag bytes to all-ones and + * zero just the (not) deleted bit. + */ + #ifndef CONFIG_YAFFS_9BYTE_TAGS +- if (etags->chunkDeleted) { ++ if (etags->is_deleted) { + memset(&pt1, 0xff, 8); + /* clear delete status bit to indicate deleted */ + pt1.deleted = 0; + } + #else + ((__u8 *)&pt1)[8] = 0xff; +- if (etags->chunkDeleted) { ++ if (etags->is_deleted) { + memset(&pt1, 0xff, 8); +- /* zero pageStatus byte to indicate deleted */ ++ /* zero page_status byte to indicate deleted */ + ((__u8 *)&pt1)[8] = 0; + } + #endif +@@ -137,20 +135,20 @@ int nandmtd1_WriteChunkWithTagsToNAND(ya + + retval = mtd->write_oob(mtd, addr, &ops); + if (retval) { +- yaffs_trace(YAFFS_TRACE_MTD, +- "write_oob failed, chunk %d, mtd error %d\n", +- chunkInNAND, retval); ++ T(YAFFS_TRACE_MTD, ++ (TSTR("write_oob failed, chunk %d, mtd error %d"TENDSTR), ++ nand_chunk, retval)); + } + return retval ? YAFFS_FAIL : YAFFS_OK; + } + +-/* Return with empty ExtendedTags but add eccResult. ++/* Return with empty ExtendedTags but add ecc_result. + */ +-static int rettags(yaffs_ExtendedTags *etags, int eccResult, int retval) ++static int rettags(yaffs_ext_tags *etags, int ecc_result, int retval) + { + if (etags) { + memset(etags, 0, sizeof(*etags)); +- etags->eccResult = eccResult; ++ etags->ecc_result = ecc_result; + } + return retval; + } +@@ -158,30 +156,28 @@ static int rettags(yaffs_ExtendedTags *e + /* Read a chunk (page) from NAND. + * + * Caller expects ExtendedTags data to be usable even on error; that is, +- * all members except eccResult and blockBad are zeroed. ++ * all members except ecc_result and block_bad are zeroed. + * + * - Check ECC results for data (if applicable) + * - Check for blank/erased block (return empty ExtendedTags if blank) + * - Check the PackedTags1 mini-ECC (correct if necessary/possible) + * - Convert PackedTags1 to ExtendedTags +- * - Update eccResult and blockBad members to refect state. ++ * - Update ecc_result and block_bad members to refect state. + * + * Returns YAFFS_OK or YAFFS_FAIL. + */ +-int nandmtd1_ReadChunkWithTagsFromNAND(yaffs_Device *dev, +- int chunkInNAND, __u8 *data, yaffs_ExtendedTags *etags) ++int nandmtd1_ReadChunkWithTagsFromNAND(yaffs_dev_t *dev, ++ int nand_chunk, __u8 *data, yaffs_ext_tags *etags) + { +- struct mtd_info *mtd = dev->genericDevice; +- int chunkBytes = dev->nDataBytesPerChunk; +- loff_t addr = ((loff_t)chunkInNAND) * chunkBytes; ++ struct mtd_info *mtd = yaffs_dev_to_mtd(dev); ++ int chunkBytes = dev->data_bytes_per_chunk; ++ loff_t addr = ((loff_t)nand_chunk) * chunkBytes; + int eccres = YAFFS_ECC_RESULT_NO_ERROR; + struct mtd_oob_ops ops; + yaffs_PackedTags1 pt1; + int retval; + int deleted; + +- dev->nPageReads++; +- + memset(&ops, 0, sizeof(ops)); + ops.mode = MTD_OOB_AUTO; + ops.len = (data) ? chunkBytes : 0; +@@ -200,9 +196,9 @@ int nandmtd1_ReadChunkWithTagsFromNAND(y + */ + retval = mtd->read_oob(mtd, addr, &ops); + if (retval) { +- yaffs_trace(YAFFS_TRACE_MTD, +- "read_oob failed, chunk %d, mtd error %d\n", +- chunkInNAND, retval); ++ T(YAFFS_TRACE_MTD, ++ (TSTR("read_oob failed, chunk %d, mtd error %d"TENDSTR), ++ nand_chunk, retval)); + } + + switch (retval) { +@@ -213,23 +209,23 @@ int nandmtd1_ReadChunkWithTagsFromNAND(y + case -EUCLEAN: + /* MTD's ECC fixed the data */ + eccres = YAFFS_ECC_RESULT_FIXED; +- dev->eccFixed++; ++ dev->n_ecc_fixed++; + break; + + case -EBADMSG: + /* MTD's ECC could not fix the data */ +- dev->eccUnfixed++; ++ dev->n_ecc_unfixed++; + /* fall into... */ + default: + rettags(etags, YAFFS_ECC_RESULT_UNFIXED, 0); +- etags->blockBad = (mtd->block_isbad)(mtd, addr); ++ etags->block_bad = (mtd->block_isbad)(mtd, addr); + return YAFFS_FAIL; + } + + /* Check for a blank/erased chunk. + */ +- if (yaffs_CheckFF((__u8 *)&pt1, 8)) { +- /* when blank, upper layers want eccResult to be <= NO_ERROR */ ++ if (yaffs_check_ff((__u8 *)&pt1, 8)) { ++ /* when blank, upper layers want ecc_result to be <= NO_ERROR */ + return rettags(etags, YAFFS_ECC_RESULT_NO_ERROR, YAFFS_OK); + } + +@@ -241,37 +237,37 @@ int nandmtd1_ReadChunkWithTagsFromNAND(y + deleted = !pt1.deleted; + pt1.deleted = 1; + #else +- deleted = (yaffs_CountBits(((__u8 *)&pt1)[8]) < 7); ++ deleted = (yaffs_count_bits(((__u8 *)&pt1)[8]) < 7); + #endif + + /* Check the packed tags mini-ECC and correct if necessary/possible. + */ +- retval = yaffs_CheckECCOnTags((yaffs_Tags *)&pt1); ++ retval = yaffs_check_tags_ecc((yaffs_tags_t *)&pt1); + switch (retval) { + case 0: + /* no tags error, use MTD result */ + break; + case 1: + /* recovered tags-ECC error */ +- dev->tagsEccFixed++; ++ dev->n_tags_ecc_fixed++; + if (eccres == YAFFS_ECC_RESULT_NO_ERROR) + eccres = YAFFS_ECC_RESULT_FIXED; + break; + default: + /* unrecovered tags-ECC error */ +- dev->tagsEccUnfixed++; ++ dev->n_tags_ecc_unfixed++; + return rettags(etags, YAFFS_ECC_RESULT_UNFIXED, YAFFS_FAIL); + } + + /* Unpack the tags to extended form and set ECC result. +- * [set shouldBeFF just to keep yaffs_UnpackTags1 happy] ++ * [set shouldBeFF just to keep yaffs_unpack_tags1 happy] + */ + pt1.shouldBeFF = 0xFFFFFFFF; +- yaffs_UnpackTags1(etags, &pt1); +- etags->eccResult = eccres; ++ yaffs_unpack_tags1(etags, &pt1); ++ etags->ecc_result = eccres; + + /* Set deleted state */ +- etags->chunkDeleted = deleted; ++ etags->is_deleted = deleted; + return YAFFS_OK; + } + +@@ -282,15 +278,15 @@ int nandmtd1_ReadChunkWithTagsFromNAND(y + * + * Returns YAFFS_OK or YAFFS_FAIL. + */ +-int nandmtd1_MarkNANDBlockBad(struct yaffs_DeviceStruct *dev, int blockNo) ++int nandmtd1_MarkNANDBlockBad(struct yaffs_dev_s *dev, int block_no) + { +- struct mtd_info *mtd = dev->genericDevice; +- int blocksize = dev->nChunksPerBlock * dev->nDataBytesPerChunk; ++ struct mtd_info *mtd = yaffs_dev_to_mtd(dev); ++ int blocksize = dev->param.chunks_per_block * dev->data_bytes_per_chunk; + int retval; + +- yaffs_trace(YAFFS_TRACE_BAD_BLOCKS, "marking block %d bad\n", blockNo); ++ T(YAFFS_TRACE_BAD_BLOCKS,(TSTR("marking block %d bad"TENDSTR), block_no)); + +- retval = mtd->block_markbad(mtd, (loff_t)blocksize * blockNo); ++ retval = mtd->block_markbad(mtd, (loff_t)blocksize * block_no); + return (retval) ? YAFFS_FAIL : YAFFS_OK; + } + +@@ -305,9 +301,9 @@ static int nandmtd1_TestPrerequists(stru + int oobavail = mtd->ecclayout->oobavail; + + if (oobavail < YTAG1_SIZE) { +- yaffs_trace(YAFFS_TRACE_ERROR, +- "mtd device has only %d bytes for tags, need %d\n", +- oobavail, YTAG1_SIZE); ++ T(YAFFS_TRACE_ERROR, ++ (TSTR("mtd device has only %d bytes for tags, need %d"TENDSTR), ++ oobavail, YTAG1_SIZE)); + return YAFFS_FAIL; + } + return YAFFS_OK; +@@ -322,13 +318,13 @@ static int nandmtd1_TestPrerequists(stru + * + * Always returns YAFFS_OK. + */ +-int nandmtd1_QueryNANDBlock(struct yaffs_DeviceStruct *dev, int blockNo, +- yaffs_BlockState *pState, __u32 *pSequenceNumber) ++int nandmtd1_QueryNANDBlock(struct yaffs_dev_s *dev, int block_no, ++ yaffs_block_state_t *pState, __u32 *pSequenceNumber) + { +- struct mtd_info *mtd = dev->genericDevice; +- int chunkNo = blockNo * dev->nChunksPerBlock; +- loff_t addr = (loff_t)chunkNo * dev->nDataBytesPerChunk; +- yaffs_ExtendedTags etags; ++ struct mtd_info *mtd = yaffs_dev_to_mtd(dev); ++ int chunkNo = block_no * dev->param.chunks_per_block; ++ loff_t addr = (loff_t)chunkNo * dev->data_bytes_per_chunk; ++ yaffs_ext_tags etags; + int state = YAFFS_BLOCK_STATE_DEAD; + int seqnum = 0; + int retval; +@@ -340,17 +336,17 @@ int nandmtd1_QueryNANDBlock(struct yaffs + return YAFFS_FAIL; + + retval = nandmtd1_ReadChunkWithTagsFromNAND(dev, chunkNo, NULL, &etags); +- etags.blockBad = (mtd->block_isbad)(mtd, addr); +- if (etags.blockBad) { +- yaffs_trace(YAFFS_TRACE_BAD_BLOCKS, +- "block %d is marked bad\n", blockNo); ++ etags.block_bad = (mtd->block_isbad)(mtd, addr); ++ if (etags.block_bad) { ++ T(YAFFS_TRACE_BAD_BLOCKS, ++ (TSTR("block %d is marked bad"TENDSTR), block_no)); + state = YAFFS_BLOCK_STATE_DEAD; +- } else if (etags.eccResult != YAFFS_ECC_RESULT_NO_ERROR) { ++ } else if (etags.ecc_result != YAFFS_ECC_RESULT_NO_ERROR) { + /* bad tags, need to look more closely */ + state = YAFFS_BLOCK_STATE_NEEDS_SCANNING; +- } else if (etags.chunkUsed) { ++ } else if (etags.chunk_used) { + state = YAFFS_BLOCK_STATE_NEEDS_SCANNING; +- seqnum = etags.sequenceNumber; ++ seqnum = etags.seq_number; + } else { + state = YAFFS_BLOCK_STATE_EMPTY; + } +--- a/fs/yaffs2/yaffs_mtdif1-compat.c ++++ /dev/null +@@ -1,434 +0,0 @@ +-From ian@brightstareng.com Fri May 18 15:06:49 2007 +-From ian@brightstareng.com Fri May 18 15:08:21 2007 +-Received: from 206.173.66.57.ptr.us.xo.net ([206.173.66.57] helo=zebra.brightstareng.com) +- by apollo.linkchoose.co.uk with esmtp (Exim 4.60) +- (envelope-from ) +- id 1Hp380-00011e-T6 +- for david.goodenough@linkchoose.co.uk; Fri, 18 May 2007 15:08:21 +0100 +-Received: from localhost (localhost.localdomain [127.0.0.1]) +- by zebra.brightstareng.com (Postfix) with ESMTP +- id 4819F28C004; Fri, 18 May 2007 10:07:49 -0400 (EDT) +-Received: from zebra.brightstareng.com ([127.0.0.1]) +- by localhost (zebra [127.0.0.1]) (amavisd-new, port 10024) with ESMTP +- id 05328-06; Fri, 18 May 2007 10:07:16 -0400 (EDT) +-Received: from pippin (unknown [192.168.1.25]) +- by zebra.brightstareng.com (Postfix) with ESMTP +- id 8BEF528C1BC; Fri, 18 May 2007 10:06:53 -0400 (EDT) +-From: Ian McDonnell +-To: David Goodenough +-Subject: Re: something tested this time -- yaffs_mtdif1-compat.c +-Date: Fri, 18 May 2007 10:06:49 -0400 +-User-Agent: KMail/1.9.1 +-References: <200705142207.06909.ian@brightstareng.com> <200705171131.53536.ian@brightstareng.com> <200705181334.32166.david.goodenough@linkchoose.co.uk> +-In-Reply-To: <200705181334.32166.david.goodenough@linkchoose.co.uk> +-Cc: Andrea Conti , +- Charles Manning +-MIME-Version: 1.0 +-Content-Type: Multipart/Mixed; +- boundary="Boundary-00=_5LbTGmt62YoutxM" +-Message-Id: <200705181006.49860.ian@brightstareng.com> +-X-Virus-Scanned: by amavisd-new at brightstareng.com +-Status: R +-X-Status: NT +-X-KMail-EncryptionState: +-X-KMail-SignatureState: +-X-KMail-MDN-Sent: +- +---Boundary-00=_5LbTGmt62YoutxM +-Content-Type: text/plain; +- charset="iso-8859-15" +-Content-Transfer-Encoding: 7bit +-Content-Disposition: inline +- +-David, Andrea, +- +-On Friday 18 May 2007 08:34, you wrote: +-> Yea team. With this fix in place (I put it in the wrong place +-> at first) I can now mount and ls the Yaffs partition without +-> an error messages! +- +-Good news! +- +-Attached is a newer yaffs_mtdif1.c with a bandaid to help the +-2.6.18 and 2.6.19 versions of MTD not trip on the oob read. +-See the LINUX_VERSION_CODE conditional in +-nandmtd1_ReadChunkWithTagsFromNAND. +- +--imcd +- +---Boundary-00=_5LbTGmt62YoutxM +-Content-Type: text/x-csrc; +- charset="iso-8859-15"; +- name="yaffs_mtdif1.c" +-Content-Transfer-Encoding: 7bit +-Content-Disposition: attachment; +- filename="yaffs_mtdif1.c" +- +-/* +- * YAFFS: Yet another FFS. A NAND-flash specific file system. +- * yaffs_mtdif1.c NAND mtd interface functions for small-page NAND. +- * +- * Copyright (C) 2002 Aleph One Ltd. +- * for Toby Churchill Ltd and Brightstar Engineering +- * +- * This program is free software; you can redistribute it and/or modify +- * it under the terms of the GNU General Public License version 2 as +- * published by the Free Software Foundation. +- */ +- +-/* +- * This module provides the interface between yaffs_nand.c and the +- * MTD API. This version is used when the MTD interface supports the +- * 'mtd_oob_ops' style calls to read_oob and write_oob, circa 2.6.17, +- * and we have small-page NAND device. +- * +- * These functions are invoked via function pointers in yaffs_nand.c. +- * This replaces functionality provided by functions in yaffs_mtdif.c +- * and the yaffs_TagsCompatability functions in yaffs_tagscompat.c that are +- * called in yaffs_mtdif.c when the function pointers are NULL. +- * We assume the MTD layer is performing ECC (useNANDECC is true). +- */ +- +-#include "yportenv.h" +-#include "yaffs_guts.h" +-#include "yaffs_packedtags1.h" +-#include "yaffs_tagscompat.h" // for yaffs_CalcTagsECC +- +-#include "linux/kernel.h" +-#include "linux/version.h" +-#include "linux/types.h" +-#include "linux/mtd/mtd.h" +- +-/* Don't compile this module if we don't have MTD's mtd_oob_ops interface */ +-#if (LINUX_VERSION_CODE > KERNEL_VERSION(2,6,17)) +- +-const char *yaffs_mtdif1_c_version = "$Id$"; +- +-#ifndef CONFIG_YAFFS_9BYTE_TAGS +-# define YTAG1_SIZE 8 +-#else +-# define YTAG1_SIZE 9 +-#endif +- +-#if 0 +-/* Use the following nand_ecclayout with MTD when using +- * CONFIG_YAFFS_9BYTE_TAGS and the older on-NAND tags layout. +- * If you have existing Yaffs images and the byte order differs from this, +- * adjust 'oobfree' to match your existing Yaffs data. +- * +- * This nand_ecclayout scatters/gathers to/from the old-yaffs layout with the +- * pageStatus byte (at NAND spare offset 4) scattered/gathered from/to +- * the 9th byte. +- * +- * Old-style on-NAND format: T0,T1,T2,T3,P,B,T4,T5,E0,E1,E2,T6,T7,E3,E4,E5 +- * We have/need PackedTags1 plus pageStatus: T0,T1,T2,T3,T4,T5,T6,T7,P +- * where Tn are the tag bytes, En are MTD's ECC bytes, P is the pageStatus +- * byte and B is the small-page bad-block indicator byte. +- */ +-static struct nand_ecclayout nand_oob_16 = { +- .eccbytes = 6, +- .eccpos = { 8, 9, 10, 13, 14, 15 }, +- .oobavail = 9, +- .oobfree = { { 0, 4 }, { 6, 2 }, { 11, 2 }, { 4, 1 } } +-}; +-#endif +- +-/* Write a chunk (page) of data to NAND. +- * +- * Caller always provides ExtendedTags data which are converted to a more +- * compact (packed) form for storage in NAND. A mini-ECC runs over the +- * contents of the tags meta-data; used to valid the tags when read. +- * +- * - Pack ExtendedTags to PackedTags1 form +- * - Compute mini-ECC for PackedTags1 +- * - Write data and packed tags to NAND. +- * +- * Note: Due to the use of the PackedTags1 meta-data which does not include +- * a full sequence number (as found in the larger PackedTags2 form) it is +- * necessary for Yaffs to re-write a chunk/page (just once) to mark it as +- * discarded and dirty. This is not ideal: newer NAND parts are supposed +- * to be written just once. When Yaffs performs this operation, this +- * function is called with a NULL data pointer -- calling MTD write_oob +- * without data is valid usage (2.6.17). +- * +- * Any underlying MTD error results in YAFFS_FAIL. +- * Returns YAFFS_OK or YAFFS_FAIL. +- */ +-int nandmtd1_WriteChunkWithTagsToNAND(yaffs_Device *dev, +- int chunkInNAND, const __u8 * data, const yaffs_ExtendedTags * etags) +-{ +- struct mtd_info * mtd = dev->genericDevice; +- int chunkBytes = dev->nDataBytesPerChunk; +- loff_t addr = ((loff_t)chunkInNAND) * chunkBytes; +- struct mtd_oob_ops ops; +- yaffs_PackedTags1 pt1; +- int retval; +- +- /* we assume that PackedTags1 and yaffs_Tags are compatible */ +- compile_time_assertion(sizeof(yaffs_PackedTags1) == 12); +- compile_time_assertion(sizeof(yaffs_Tags) == 8); +- +- yaffs_PackTags1(&pt1, etags); +- yaffs_CalcTagsECC((yaffs_Tags *)&pt1); +- +- /* When deleting a chunk, the upper layer provides only skeletal +- * etags, one with chunkDeleted set. However, we need to update the +- * tags, not erase them completely. So we use the NAND write property +- * that only zeroed-bits stick and set tag bytes to all-ones and +- * zero just the (not) deleted bit. +- */ +-#ifndef CONFIG_YAFFS_9BYTE_TAGS +- if (etags->chunkDeleted) { +- memset(&pt1, 0xff, 8); +- /* clear delete status bit to indicate deleted */ +- pt1.deleted = 0; +- } +-#else +- ((__u8 *)&pt1)[8] = 0xff; +- if (etags->chunkDeleted) { +- memset(&pt1, 0xff, 8); +- /* zero pageStatus byte to indicate deleted */ +- ((__u8 *)&pt1)[8] = 0; +- } +-#endif +- +- memset(&ops, 0, sizeof(ops)); +- ops.mode = MTD_OOB_AUTO; +- ops.len = (data) ? chunkBytes : 0; +- ops.ooblen = YTAG1_SIZE; +- ops.datbuf = (__u8 *)data; +- ops.oobbuf = (__u8 *)&pt1; +- +- retval = mtd->write_oob(mtd, addr, &ops); +- if (retval) { +- yaffs_trace(YAFFS_TRACE_MTD, +- "write_oob failed, chunk %d, mtd error %d\n", +- chunkInNAND, retval); +- } +- return retval ? YAFFS_FAIL : YAFFS_OK; +-} +- +-/* Return with empty ExtendedTags but add eccResult. +- */ +-static int rettags(yaffs_ExtendedTags * etags, int eccResult, int retval) +-{ +- if (etags) { +- memset(etags, 0, sizeof(*etags)); +- etags->eccResult = eccResult; +- } +- return retval; +-} +- +-/* Read a chunk (page) from NAND. +- * +- * Caller expects ExtendedTags data to be usable even on error; that is, +- * all members except eccResult and blockBad are zeroed. +- * +- * - Check ECC results for data (if applicable) +- * - Check for blank/erased block (return empty ExtendedTags if blank) +- * - Check the PackedTags1 mini-ECC (correct if necessary/possible) +- * - Convert PackedTags1 to ExtendedTags +- * - Update eccResult and blockBad members to refect state. +- * +- * Returns YAFFS_OK or YAFFS_FAIL. +- */ +-int nandmtd1_ReadChunkWithTagsFromNAND(yaffs_Device *dev, +- int chunkInNAND, __u8 * data, yaffs_ExtendedTags * etags) +-{ +- struct mtd_info * mtd = dev->genericDevice; +- int chunkBytes = dev->nDataBytesPerChunk; +- loff_t addr = ((loff_t)chunkInNAND) * chunkBytes; +- int eccres = YAFFS_ECC_RESULT_NO_ERROR; +- struct mtd_oob_ops ops; +- yaffs_PackedTags1 pt1; +- int retval; +- int deleted; +- +- memset(&ops, 0, sizeof(ops)); +- ops.mode = MTD_OOB_AUTO; +- ops.len = (data) ? chunkBytes : 0; +- ops.ooblen = YTAG1_SIZE; +- ops.datbuf = data; +- ops.oobbuf = (__u8 *)&pt1; +- +-#if (LINUX_VERSION_CODE < KERNEL_VERSION(2,6,20)) +- /* In MTD 2.6.18 to 2.6.19 nand_base.c:nand_do_read_oob() has a bug; +- * help it out with ops.len = ops.ooblen when ops.datbuf == NULL. +- */ +- ops.len = (ops.datbuf) ? ops.len : ops.ooblen; +-#endif +- /* Read page and oob using MTD. +- * Check status and determine ECC result. +- */ +- retval = mtd->read_oob(mtd, addr, &ops); +- if (retval) { +- yaffs_trace(YAFFS_TRACE_MTD, +- "read_oob failed, chunk %d, mtd error %d\n", +- chunkInNAND, retval); +- } +- +- switch (retval) { +- case 0: +- /* no error */ +- break; +- +- case -EUCLEAN: +- /* MTD's ECC fixed the data */ +- eccres = YAFFS_ECC_RESULT_FIXED; +- dev->eccFixed++; +- break; +- +- case -EBADMSG: +- /* MTD's ECC could not fix the data */ +- dev->eccUnfixed++; +- /* fall into... */ +- default: +- rettags(etags, YAFFS_ECC_RESULT_UNFIXED, 0); +- etags->blockBad = (mtd->block_isbad)(mtd, addr); +- return YAFFS_FAIL; +- } +- +- /* Check for a blank/erased chunk. +- */ +- if (yaffs_CheckFF((__u8 *)&pt1, 8)) { +- /* when blank, upper layers want eccResult to be <= NO_ERROR */ +- return rettags(etags, YAFFS_ECC_RESULT_NO_ERROR, YAFFS_OK); +- } +- +-#ifndef CONFIG_YAFFS_9BYTE_TAGS +- /* Read deleted status (bit) then return it to it's non-deleted +- * state before performing tags mini-ECC check. pt1.deleted is +- * inverted. +- */ +- deleted = !pt1.deleted; +- pt1.deleted = 1; +-#else +- (void) deleted; /* not used */ +-#endif +- +- /* Check the packed tags mini-ECC and correct if necessary/possible. +- */ +- retval = yaffs_CheckECCOnTags((yaffs_Tags *)&pt1); +- switch (retval) { +- case 0: +- /* no tags error, use MTD result */ +- break; +- case 1: +- /* recovered tags-ECC error */ +- dev->tagsEccFixed++; +- eccres = YAFFS_ECC_RESULT_FIXED; +- break; +- default: +- /* unrecovered tags-ECC error */ +- dev->tagsEccUnfixed++; +- return rettags(etags, YAFFS_ECC_RESULT_UNFIXED, YAFFS_FAIL); +- } +- +- /* Unpack the tags to extended form and set ECC result. +- * [set shouldBeFF just to keep yaffs_UnpackTags1 happy] +- */ +- pt1.shouldBeFF = 0xFFFFFFFF; +- yaffs_UnpackTags1(etags, &pt1); +- etags->eccResult = eccres; +- +- /* Set deleted state. +- */ +-#ifndef CONFIG_YAFFS_9BYTE_TAGS +- etags->chunkDeleted = deleted; +-#else +- etags->chunkDeleted = (yaffs_CountBits(((__u8 *)&pt1)[8]) < 7); +-#endif +- return YAFFS_OK; +-} +- +-/* Mark a block bad. +- * +- * This is a persistant state. +- * Use of this function should be rare. +- * +- * Returns YAFFS_OK or YAFFS_FAIL. +- */ +-int nandmtd1_MarkNANDBlockBad(struct yaffs_DeviceStruct *dev, int blockNo) +-{ +- struct mtd_info * mtd = dev->genericDevice; +- int blocksize = dev->nChunksPerBlock * dev->nDataBytesPerChunk; +- int retval; +- +- yaffs_trace(YAFFS_TRACE_BAD_BLOCKS, "marking block %d bad", blockNo); +- +- retval = mtd->block_markbad(mtd, (loff_t)blocksize * blockNo); +- return (retval) ? YAFFS_FAIL : YAFFS_OK; +-} +- +-/* Check any MTD prerequists. +- * +- * Returns YAFFS_OK or YAFFS_FAIL. +- */ +-static int nandmtd1_TestPrerequists(struct mtd_info * mtd) +-{ +- /* 2.6.18 has mtd->ecclayout->oobavail */ +- /* 2.6.21 has mtd->ecclayout->oobavail and mtd->oobavail */ +- int oobavail = mtd->ecclayout->oobavail; +- +- if (oobavail < YTAG1_SIZE) { +- yaffs_trace(YAFFS_TRACE_ERROR, +- "mtd device has only %d bytes for tags, need %d", +- oobavail, YTAG1_SIZE); +- return YAFFS_FAIL; +- } +- return YAFFS_OK; +-} +- +-/* Query for the current state of a specific block. +- * +- * Examine the tags of the first chunk of the block and return the state: +- * - YAFFS_BLOCK_STATE_DEAD, the block is marked bad +- * - YAFFS_BLOCK_STATE_NEEDS_SCANNING, the block is in use +- * - YAFFS_BLOCK_STATE_EMPTY, the block is clean +- * +- * Always returns YAFFS_OK. +- */ +-int nandmtd1_QueryNANDBlock(struct yaffs_DeviceStruct *dev, int blockNo, +- yaffs_BlockState * pState, int *pSequenceNumber) +-{ +- struct mtd_info * mtd = dev->genericDevice; +- int chunkNo = blockNo * dev->nChunksPerBlock; +- yaffs_ExtendedTags etags; +- int state = YAFFS_BLOCK_STATE_DEAD; +- int seqnum = 0; +- int retval; +- +- /* We don't yet have a good place to test for MTD config prerequists. +- * Do it here as we are called during the initial scan. +- */ +- if (nandmtd1_TestPrerequists(mtd) != YAFFS_OK) { +- return YAFFS_FAIL; +- } +- +- retval = nandmtd1_ReadChunkWithTagsFromNAND(dev, chunkNo, NULL, &etags); +- if (etags.blockBad) { +- yaffs_trace(YAFFS_TRACE_BAD_BLOCKS, +- "block %d is marked bad", blockNo); +- state = YAFFS_BLOCK_STATE_DEAD; +- } +- else if (etags.chunkUsed) { +- state = YAFFS_BLOCK_STATE_NEEDS_SCANNING; +- seqnum = etags.sequenceNumber; +- } +- else { +- state = YAFFS_BLOCK_STATE_EMPTY; +- } +- +- *pState = state; +- *pSequenceNumber = seqnum; +- +- /* query always succeeds */ +- return YAFFS_OK; +-} +- +-#endif /*KERNEL_VERSION*/ +- +---Boundary-00=_5LbTGmt62YoutxM-- +- +- +- +--- a/fs/yaffs2/yaffs_mtdif1.h ++++ b/fs/yaffs2/yaffs_mtdif1.h +@@ -1,7 +1,7 @@ + /* + * YAFFS: Yet another Flash File System. A NAND-flash specific file system. + * +- * Copyright (C) 2002-2007 Aleph One Ltd. ++ * Copyright (C) 2002-2010 Aleph One Ltd. + * for Toby Churchill Ltd and Brightstar Engineering + * + * This program is free software; you can redistribute it and/or modify +@@ -14,15 +14,15 @@ + #ifndef __YAFFS_MTDIF1_H__ + #define __YAFFS_MTDIF1_H__ + +-int nandmtd1_WriteChunkWithTagsToNAND(yaffs_Device *dev, int chunkInNAND, +- const __u8 *data, const yaffs_ExtendedTags *tags); ++int nandmtd1_WriteChunkWithTagsToNAND(yaffs_dev_t *dev, int nand_chunk, ++ const __u8 *data, const yaffs_ext_tags *tags); + +-int nandmtd1_ReadChunkWithTagsFromNAND(yaffs_Device *dev, int chunkInNAND, +- __u8 *data, yaffs_ExtendedTags *tags); ++int nandmtd1_ReadChunkWithTagsFromNAND(yaffs_dev_t *dev, int nand_chunk, ++ __u8 *data, yaffs_ext_tags *tags); + +-int nandmtd1_MarkNANDBlockBad(struct yaffs_DeviceStruct *dev, int blockNo); ++int nandmtd1_MarkNANDBlockBad(struct yaffs_dev_s *dev, int block_no); + +-int nandmtd1_QueryNANDBlock(struct yaffs_DeviceStruct *dev, int blockNo, +- yaffs_BlockState *state, __u32 *sequenceNumber); ++int nandmtd1_QueryNANDBlock(struct yaffs_dev_s *dev, int block_no, ++ yaffs_block_state_t *state, __u32 *seq_number); + + #endif +--- a/fs/yaffs2/yaffs_mtdif2.c ++++ b/fs/yaffs2/yaffs_mtdif2.c +@@ -1,7 +1,7 @@ + /* + * YAFFS: Yet Another Flash File System. A NAND-flash specific file system. + * +- * Copyright (C) 2002-2007 Aleph One Ltd. ++ * Copyright (C) 2002-2010 Aleph One Ltd. + * for Toby Churchill Ltd and Brightstar Engineering + * + * Created by Charles Manning +@@ -13,11 +13,8 @@ + + /* mtd interface for YAFFS2 */ + +-const char *yaffs_mtdif2_c_version = +- "$Id: yaffs_mtdif2.c,v 1.23 2009-03-06 17:20:53 wookey Exp $"; +- + #include "yportenv.h" +- ++#include "yaffs_trace.h" + + #include "yaffs_mtdif2.h" + +@@ -27,15 +24,17 @@ const char *yaffs_mtdif2_c_version = + + #include "yaffs_packedtags2.h" + ++#include "yaffs_linux.h" ++ + /* NB For use with inband tags.... + * We assume that the data buffer is of size totalBytersPerChunk so that we can also + * use it to load the tags. + */ +-int nandmtd2_WriteChunkWithTagsToNAND(yaffs_Device *dev, int chunkInNAND, ++int nandmtd2_WriteChunkWithTagsToNAND(yaffs_dev_t *dev, int nand_chunk, + const __u8 *data, +- const yaffs_ExtendedTags *tags) ++ const yaffs_ext_tags *tags) + { +- struct mtd_info *mtd = (struct mtd_info *)(dev->genericDevice); ++ struct mtd_info *mtd = yaffs_dev_to_mtd(dev); + #if (MTD_VERSION_CODE > MTD_VERSION(2, 6, 17)) + struct mtd_oob_ops ops; + #else +@@ -47,13 +46,16 @@ int nandmtd2_WriteChunkWithTagsToNAND(ya + + yaffs_PackedTags2 pt; + ++ int packed_tags_size = dev->param.no_tags_ecc ? sizeof(pt.t) : sizeof(pt); ++ void * packed_tags_ptr = dev->param.no_tags_ecc ? (void *) &pt.t : (void *)&pt; ++ + T(YAFFS_TRACE_MTD, + (TSTR + ("nandmtd2_WriteChunkWithTagsToNAND chunk %d data %p tags %p" +- TENDSTR), chunkInNAND, data, tags)); ++ TENDSTR), nand_chunk, data, tags)); + + +- addr = ((loff_t) chunkInNAND) * dev->totalBytesPerChunk; ++ addr = ((loff_t) nand_chunk) * dev->param.total_bytes_per_chunk; + + /* For yaffs2 writing there must be both data and tags. + * If we're using inband tags, then the tags are stuffed into +@@ -61,30 +63,30 @@ int nandmtd2_WriteChunkWithTagsToNAND(ya + */ + if (!data || !tags) + BUG(); +- else if (dev->inbandTags) { ++ else if (dev->param.inband_tags) { + yaffs_PackedTags2TagsPart *pt2tp; +- pt2tp = (yaffs_PackedTags2TagsPart *)(data + dev->nDataBytesPerChunk); ++ pt2tp = (yaffs_PackedTags2TagsPart *)(data + dev->data_bytes_per_chunk); + yaffs_PackTags2TagsPart(pt2tp, tags); + } else +- yaffs_PackTags2(&pt, tags); ++ yaffs_PackTags2(&pt, tags, !dev->param.no_tags_ecc); + + #if (LINUX_VERSION_CODE > KERNEL_VERSION(2, 6, 17)) + ops.mode = MTD_OOB_AUTO; +- ops.ooblen = (dev->inbandTags) ? 0 : sizeof(pt); +- ops.len = dev->totalBytesPerChunk; ++ ops.ooblen = (dev->param.inband_tags) ? 0 : packed_tags_size; ++ ops.len = dev->param.total_bytes_per_chunk; + ops.ooboffs = 0; + ops.datbuf = (__u8 *)data; +- ops.oobbuf = (dev->inbandTags) ? NULL : (void *)&pt; ++ ops.oobbuf = (dev->param.inband_tags) ? NULL : packed_tags_ptr; + retval = mtd->write_oob(mtd, addr, &ops); + + #else +- if (!dev->inbandTags) { ++ if (!dev->param.inband_tags) { + retval = +- mtd->write_ecc(mtd, addr, dev->nDataBytesPerChunk, +- &dummy, data, (__u8 *) &pt, NULL); ++ mtd->write_ecc(mtd, addr, dev->data_bytes_per_chunk, ++ &dummy, data, (__u8 *) packed_tags_ptr, NULL); + } else { + retval = +- mtd->write(mtd, addr, dev->totalBytesPerChunk, &dummy, ++ mtd->write(mtd, addr, dev->param.total_bytes_per_chunk, &dummy, + data); + } + #endif +@@ -95,10 +97,10 @@ int nandmtd2_WriteChunkWithTagsToNAND(ya + return YAFFS_FAIL; + } + +-int nandmtd2_ReadChunkWithTagsFromNAND(yaffs_Device *dev, int chunkInNAND, +- __u8 *data, yaffs_ExtendedTags *tags) ++int nandmtd2_ReadChunkWithTagsFromNAND(yaffs_dev_t *dev, int nand_chunk, ++ __u8 *data, yaffs_ext_tags *tags) + { +- struct mtd_info *mtd = (struct mtd_info *)(dev->genericDevice); ++ struct mtd_info *mtd = yaffs_dev_to_mtd(dev); + #if (MTD_VERSION_CODE > MTD_VERSION(2, 6, 17)) + struct mtd_oob_ops ops; + #endif +@@ -106,20 +108,23 @@ int nandmtd2_ReadChunkWithTagsFromNAND(y + int retval = 0; + int localData = 0; + +- loff_t addr = ((loff_t) chunkInNAND) * dev->totalBytesPerChunk; ++ loff_t addr = ((loff_t) nand_chunk) * dev->param.total_bytes_per_chunk; + + yaffs_PackedTags2 pt; + ++ int packed_tags_size = dev->param.no_tags_ecc ? sizeof(pt.t) : sizeof(pt); ++ void * packed_tags_ptr = dev->param.no_tags_ecc ? (void *) &pt.t: (void *)&pt; ++ + T(YAFFS_TRACE_MTD, + (TSTR + ("nandmtd2_ReadChunkWithTagsFromNAND chunk %d data %p tags %p" +- TENDSTR), chunkInNAND, data, tags)); ++ TENDSTR), nand_chunk, data, tags)); + +- if (dev->inbandTags) { ++ if (dev->param.inband_tags) { + + if (!data) { + localData = 1; +- data = yaffs_GetTempBuffer(dev, __LINE__); ++ data = yaffs_get_temp_buffer(dev, __LINE__); + } + + +@@ -127,30 +132,30 @@ int nandmtd2_ReadChunkWithTagsFromNAND(y + + + #if (LINUX_VERSION_CODE > KERNEL_VERSION(2, 6, 17)) +- if (dev->inbandTags || (data && !tags)) +- retval = mtd->read(mtd, addr, dev->totalBytesPerChunk, ++ if (dev->param.inband_tags || (data && !tags)) ++ retval = mtd->read(mtd, addr, dev->param.total_bytes_per_chunk, + &dummy, data); + else if (tags) { + ops.mode = MTD_OOB_AUTO; +- ops.ooblen = sizeof(pt); +- ops.len = data ? dev->nDataBytesPerChunk : sizeof(pt); ++ ops.ooblen = packed_tags_size; ++ ops.len = data ? dev->data_bytes_per_chunk : packed_tags_size; + ops.ooboffs = 0; + ops.datbuf = data; +- ops.oobbuf = dev->spareBuffer; ++ ops.oobbuf = yaffs_dev_to_lc(dev)->spareBuffer; + retval = mtd->read_oob(mtd, addr, &ops); + } + #else +- if (!dev->inbandTags && data && tags) { ++ if (!dev->param.inband_tags && data && tags) { + +- retval = mtd->read_ecc(mtd, addr, dev->nDataBytesPerChunk, ++ retval = mtd->read_ecc(mtd, addr, dev->data_bytes_per_chunk, + &dummy, data, dev->spareBuffer, + NULL); + } else { + if (data) + retval = +- mtd->read(mtd, addr, dev->nDataBytesPerChunk, &dummy, ++ mtd->read(mtd, addr, dev->data_bytes_per_chunk, &dummy, + data); +- if (!dev->inbandTags && tags) ++ if (!dev->param.inband_tags && tags) + retval = + mtd->read_oob(mtd, addr, mtd->oobsize, &dummy, + dev->spareBuffer); +@@ -158,41 +163,47 @@ int nandmtd2_ReadChunkWithTagsFromNAND(y + #endif + + +- if (dev->inbandTags) { ++ if (dev->param.inband_tags) { + if (tags) { + yaffs_PackedTags2TagsPart *pt2tp; +- pt2tp = (yaffs_PackedTags2TagsPart *)&data[dev->nDataBytesPerChunk]; +- yaffs_UnpackTags2TagsPart(tags, pt2tp); ++ pt2tp = (yaffs_PackedTags2TagsPart *)&data[dev->data_bytes_per_chunk]; ++ yaffs_unpack_tags2tags_part(tags, pt2tp); + } + } else { + if (tags) { +- memcpy(&pt, dev->spareBuffer, sizeof(pt)); +- yaffs_UnpackTags2(tags, &pt); ++ memcpy(packed_tags_ptr, yaffs_dev_to_lc(dev)->spareBuffer, packed_tags_size); ++ yaffs_unpack_tags2(tags, &pt, !dev->param.no_tags_ecc); + } + } + + if (localData) +- yaffs_ReleaseTempBuffer(dev, data, __LINE__); ++ yaffs_release_temp_buffer(dev, data, __LINE__); + +- if (tags && retval == -EBADMSG && tags->eccResult == YAFFS_ECC_RESULT_NO_ERROR) +- tags->eccResult = YAFFS_ECC_RESULT_UNFIXED; ++ if (tags && retval == -EBADMSG && tags->ecc_result == YAFFS_ECC_RESULT_NO_ERROR) { ++ tags->ecc_result = YAFFS_ECC_RESULT_UNFIXED; ++ dev->n_ecc_unfixed++; ++ } ++ if(tags && retval == -EUCLEAN && tags->ecc_result == YAFFS_ECC_RESULT_NO_ERROR) { ++ tags->ecc_result = YAFFS_ECC_RESULT_FIXED; ++ dev->n_ecc_fixed++; ++ } + if (retval == 0) + return YAFFS_OK; + else + return YAFFS_FAIL; + } + +-int nandmtd2_MarkNANDBlockBad(struct yaffs_DeviceStruct *dev, int blockNo) ++int nandmtd2_MarkNANDBlockBad(struct yaffs_dev_s *dev, int block_no) + { +- struct mtd_info *mtd = (struct mtd_info *)(dev->genericDevice); ++ struct mtd_info *mtd = yaffs_dev_to_mtd(dev); + int retval; + T(YAFFS_TRACE_MTD, +- (TSTR("nandmtd2_MarkNANDBlockBad %d" TENDSTR), blockNo)); ++ (TSTR("nandmtd2_MarkNANDBlockBad %d" TENDSTR), block_no)); + + retval = + mtd->block_markbad(mtd, +- blockNo * dev->nChunksPerBlock * +- dev->totalBytesPerChunk); ++ block_no * dev->param.chunks_per_block * ++ dev->param.total_bytes_per_chunk); + + if (retval == 0) + return YAFFS_OK; +@@ -201,41 +212,41 @@ int nandmtd2_MarkNANDBlockBad(struct yaf + + } + +-int nandmtd2_QueryNANDBlock(struct yaffs_DeviceStruct *dev, int blockNo, +- yaffs_BlockState *state, __u32 *sequenceNumber) ++int nandmtd2_QueryNANDBlock(struct yaffs_dev_s *dev, int block_no, ++ yaffs_block_state_t *state, __u32 *seq_number) + { +- struct mtd_info *mtd = (struct mtd_info *)(dev->genericDevice); ++ struct mtd_info *mtd = yaffs_dev_to_mtd(dev); + int retval; + + T(YAFFS_TRACE_MTD, +- (TSTR("nandmtd2_QueryNANDBlock %d" TENDSTR), blockNo)); ++ (TSTR("nandmtd2_QueryNANDBlock %d" TENDSTR), block_no)); + retval = + mtd->block_isbad(mtd, +- blockNo * dev->nChunksPerBlock * +- dev->totalBytesPerChunk); ++ block_no * dev->param.chunks_per_block * ++ dev->param.total_bytes_per_chunk); + + if (retval) { + T(YAFFS_TRACE_MTD, (TSTR("block is bad" TENDSTR))); + + *state = YAFFS_BLOCK_STATE_DEAD; +- *sequenceNumber = 0; ++ *seq_number = 0; + } else { +- yaffs_ExtendedTags t; ++ yaffs_ext_tags t; + nandmtd2_ReadChunkWithTagsFromNAND(dev, +- blockNo * +- dev->nChunksPerBlock, NULL, ++ block_no * ++ dev->param.chunks_per_block, NULL, + &t); + +- if (t.chunkUsed) { +- *sequenceNumber = t.sequenceNumber; ++ if (t.chunk_used) { ++ *seq_number = t.seq_number; + *state = YAFFS_BLOCK_STATE_NEEDS_SCANNING; + } else { +- *sequenceNumber = 0; ++ *seq_number = 0; + *state = YAFFS_BLOCK_STATE_EMPTY; + } + } + T(YAFFS_TRACE_MTD, +- (TSTR("block is bad seq %d state %d" TENDSTR), *sequenceNumber, ++ (TSTR("block is bad seq %d state %d" TENDSTR), *seq_number, + *state)); + + if (retval == 0) +--- a/fs/yaffs2/yaffs_mtdif2.h ++++ b/fs/yaffs2/yaffs_mtdif2.h +@@ -1,7 +1,7 @@ + /* + * YAFFS: Yet another Flash File System . A NAND-flash specific file system. + * +- * Copyright (C) 2002-2007 Aleph One Ltd. ++ * Copyright (C) 2002-2010 Aleph One Ltd. + * for Toby Churchill Ltd and Brightstar Engineering + * + * Created by Charles Manning +@@ -17,13 +17,13 @@ + #define __YAFFS_MTDIF2_H__ + + #include "yaffs_guts.h" +-int nandmtd2_WriteChunkWithTagsToNAND(yaffs_Device *dev, int chunkInNAND, ++int nandmtd2_WriteChunkWithTagsToNAND(yaffs_dev_t *dev, int nand_chunk, + const __u8 *data, +- const yaffs_ExtendedTags *tags); +-int nandmtd2_ReadChunkWithTagsFromNAND(yaffs_Device *dev, int chunkInNAND, +- __u8 *data, yaffs_ExtendedTags *tags); +-int nandmtd2_MarkNANDBlockBad(struct yaffs_DeviceStruct *dev, int blockNo); +-int nandmtd2_QueryNANDBlock(struct yaffs_DeviceStruct *dev, int blockNo, +- yaffs_BlockState *state, __u32 *sequenceNumber); ++ const yaffs_ext_tags *tags); ++int nandmtd2_ReadChunkWithTagsFromNAND(yaffs_dev_t *dev, int nand_chunk, ++ __u8 *data, yaffs_ext_tags *tags); ++int nandmtd2_MarkNANDBlockBad(struct yaffs_dev_s *dev, int block_no); ++int nandmtd2_QueryNANDBlock(struct yaffs_dev_s *dev, int block_no, ++ yaffs_block_state_t *state, __u32 *seq_number); + + #endif +--- a/fs/yaffs2/yaffs_mtdif.c ++++ b/fs/yaffs2/yaffs_mtdif.c +@@ -1,7 +1,7 @@ + /* + * YAFFS: Yet Another Flash File System. A NAND-flash specific file system. + * +- * Copyright (C) 2002-2007 Aleph One Ltd. ++ * Copyright (C) 2002-2010 Aleph One Ltd. + * for Toby Churchill Ltd and Brightstar Engineering + * + * Created by Charles Manning +@@ -11,9 +11,6 @@ + * published by the Free Software Foundation. + */ + +-const char *yaffs_mtdif_c_version = +- "$Id: yaffs_mtdif.c,v 1.22 2009-03-06 17:20:51 wookey Exp $"; +- + #include "yportenv.h" + + +@@ -24,208 +21,26 @@ const char *yaffs_mtdif_c_version = + #include "linux/time.h" + #include "linux/mtd/nand.h" + +-#if (MTD_VERSION_CODE < MTD_VERSION(2, 6, 18)) +-static struct nand_oobinfo yaffs_oobinfo = { +- .useecc = 1, +- .eccbytes = 6, +- .eccpos = {8, 9, 10, 13, 14, 15} +-}; +- +-static struct nand_oobinfo yaffs_noeccinfo = { +- .useecc = 0, +-}; +-#endif +- +-#if (MTD_VERSION_CODE > MTD_VERSION(2, 6, 17)) +-static inline void translate_spare2oob(const yaffs_Spare *spare, __u8 *oob) +-{ +- oob[0] = spare->tagByte0; +- oob[1] = spare->tagByte1; +- oob[2] = spare->tagByte2; +- oob[3] = spare->tagByte3; +- oob[4] = spare->tagByte4; +- oob[5] = spare->tagByte5 & 0x3f; +- oob[5] |= spare->blockStatus == 'Y' ? 0 : 0x80; +- oob[5] |= spare->pageStatus == 0 ? 0 : 0x40; +- oob[6] = spare->tagByte6; +- oob[7] = spare->tagByte7; +-} +- +-static inline void translate_oob2spare(yaffs_Spare *spare, __u8 *oob) +-{ +- struct yaffs_NANDSpare *nspare = (struct yaffs_NANDSpare *)spare; +- spare->tagByte0 = oob[0]; +- spare->tagByte1 = oob[1]; +- spare->tagByte2 = oob[2]; +- spare->tagByte3 = oob[3]; +- spare->tagByte4 = oob[4]; +- spare->tagByte5 = oob[5] == 0xff ? 0xff : oob[5] & 0x3f; +- spare->blockStatus = oob[5] & 0x80 ? 0xff : 'Y'; +- spare->pageStatus = oob[5] & 0x40 ? 0xff : 0; +- spare->ecc1[0] = spare->ecc1[1] = spare->ecc1[2] = 0xff; +- spare->tagByte6 = oob[6]; +- spare->tagByte7 = oob[7]; +- spare->ecc2[0] = spare->ecc2[1] = spare->ecc2[2] = 0xff; +- +- nspare->eccres1 = nspare->eccres2 = 0; /* FIXME */ +-} +-#endif +- +-int nandmtd_WriteChunkToNAND(yaffs_Device *dev, int chunkInNAND, +- const __u8 *data, const yaffs_Spare *spare) +-{ +- struct mtd_info *mtd = (struct mtd_info *)(dev->genericDevice); +-#if (MTD_VERSION_CODE > MTD_VERSION(2, 6, 17)) +- struct mtd_oob_ops ops; +-#endif +- size_t dummy; +- int retval = 0; +- +- loff_t addr = ((loff_t) chunkInNAND) * dev->nDataBytesPerChunk; +-#if (MTD_VERSION_CODE > MTD_VERSION(2, 6, 17)) +- __u8 spareAsBytes[8]; /* OOB */ +- +- if (data && !spare) +- retval = mtd->write(mtd, addr, dev->nDataBytesPerChunk, +- &dummy, data); +- else if (spare) { +- if (dev->useNANDECC) { +- translate_spare2oob(spare, spareAsBytes); +- ops.mode = MTD_OOB_AUTO; +- ops.ooblen = 8; /* temp hack */ +- } else { +- ops.mode = MTD_OOB_RAW; +- ops.ooblen = YAFFS_BYTES_PER_SPARE; +- } +- ops.len = data ? dev->nDataBytesPerChunk : ops.ooblen; +- ops.datbuf = (u8 *)data; +- ops.ooboffs = 0; +- ops.oobbuf = spareAsBytes; +- retval = mtd->write_oob(mtd, addr, &ops); +- } +-#else +- __u8 *spareAsBytes = (__u8 *) spare; +- +- if (data && spare) { +- if (dev->useNANDECC) +- retval = +- mtd->write_ecc(mtd, addr, dev->nDataBytesPerChunk, +- &dummy, data, spareAsBytes, +- &yaffs_oobinfo); +- else +- retval = +- mtd->write_ecc(mtd, addr, dev->nDataBytesPerChunk, +- &dummy, data, spareAsBytes, +- &yaffs_noeccinfo); +- } else { +- if (data) +- retval = +- mtd->write(mtd, addr, dev->nDataBytesPerChunk, &dummy, +- data); +- if (spare) +- retval = +- mtd->write_oob(mtd, addr, YAFFS_BYTES_PER_SPARE, +- &dummy, spareAsBytes); +- } +-#endif +- +- if (retval == 0) +- return YAFFS_OK; +- else +- return YAFFS_FAIL; +-} +- +-int nandmtd_ReadChunkFromNAND(yaffs_Device *dev, int chunkInNAND, __u8 *data, +- yaffs_Spare *spare) +-{ +- struct mtd_info *mtd = (struct mtd_info *)(dev->genericDevice); +-#if (MTD_VERSION_CODE > MTD_VERSION(2, 6, 17)) +- struct mtd_oob_ops ops; +-#endif +- size_t dummy; +- int retval = 0; ++#include "yaffs_linux.h" + +- loff_t addr = ((loff_t) chunkInNAND) * dev->nDataBytesPerChunk; +-#if (MTD_VERSION_CODE > MTD_VERSION(2, 6, 17)) +- __u8 spareAsBytes[8]; /* OOB */ +- +- if (data && !spare) +- retval = mtd->read(mtd, addr, dev->nDataBytesPerChunk, +- &dummy, data); +- else if (spare) { +- if (dev->useNANDECC) { +- ops.mode = MTD_OOB_AUTO; +- ops.ooblen = 8; /* temp hack */ +- } else { +- ops.mode = MTD_OOB_RAW; +- ops.ooblen = YAFFS_BYTES_PER_SPARE; +- } +- ops.len = data ? dev->nDataBytesPerChunk : ops.ooblen; +- ops.datbuf = data; +- ops.ooboffs = 0; +- ops.oobbuf = spareAsBytes; +- retval = mtd->read_oob(mtd, addr, &ops); +- if (dev->useNANDECC) +- translate_oob2spare(spare, spareAsBytes); +- } +-#else +- __u8 *spareAsBytes = (__u8 *) spare; +- +- if (data && spare) { +- if (dev->useNANDECC) { +- /* Careful, this call adds 2 ints */ +- /* to the end of the spare data. Calling function */ +- /* should allocate enough memory for spare, */ +- /* i.e. [YAFFS_BYTES_PER_SPARE+2*sizeof(int)]. */ +- retval = +- mtd->read_ecc(mtd, addr, dev->nDataBytesPerChunk, +- &dummy, data, spareAsBytes, +- &yaffs_oobinfo); +- } else { +- retval = +- mtd->read_ecc(mtd, addr, dev->nDataBytesPerChunk, +- &dummy, data, spareAsBytes, +- &yaffs_noeccinfo); +- } +- } else { +- if (data) +- retval = +- mtd->read(mtd, addr, dev->nDataBytesPerChunk, &dummy, +- data); +- if (spare) +- retval = +- mtd->read_oob(mtd, addr, YAFFS_BYTES_PER_SPARE, +- &dummy, spareAsBytes); +- } +-#endif +- +- if (retval == 0) +- return YAFFS_OK; +- else +- return YAFFS_FAIL; +-} +- +-int nandmtd_EraseBlockInNAND(yaffs_Device *dev, int blockNumber) ++int nandmtd_EraseBlockInNAND(yaffs_dev_t *dev, int blockNumber) + { +- struct mtd_info *mtd = (struct mtd_info *)(dev->genericDevice); ++ struct mtd_info *mtd = yaffs_dev_to_mtd(dev); + __u32 addr = +- ((loff_t) blockNumber) * dev->nDataBytesPerChunk +- * dev->nChunksPerBlock; ++ ((loff_t) blockNumber) * dev->param.total_bytes_per_chunk ++ * dev->param.chunks_per_block; + struct erase_info ei; ++ + int retval = 0; + + ei.mtd = mtd; + ei.addr = addr; +- ei.len = dev->nDataBytesPerChunk * dev->nChunksPerBlock; ++ ei.len = dev->param.total_bytes_per_chunk * dev->param.chunks_per_block; + ei.time = 1000; + ei.retries = 2; + ei.callback = NULL; + ei.priv = (u_long) dev; + +- /* Todo finish off the ei if required */ +- +- sema_init(&dev->sem, 0); +- + retval = mtd->erase(mtd, &ei); + + if (retval == 0) +@@ -234,7 +49,7 @@ int nandmtd_EraseBlockInNAND(yaffs_Devic + return YAFFS_FAIL; + } + +-int nandmtd_InitialiseNAND(yaffs_Device *dev) ++int nandmtd_InitialiseNAND(yaffs_dev_t *dev) + { + return YAFFS_OK; + } +--- a/fs/yaffs2/yaffs_mtdif.h ++++ b/fs/yaffs2/yaffs_mtdif.h +@@ -1,7 +1,7 @@ + /* + * YAFFS: Yet another Flash File System . A NAND-flash specific file system. + * +- * Copyright (C) 2002-2007 Aleph One Ltd. ++ * Copyright (C) 2002-2010 Aleph One Ltd. + * for Toby Churchill Ltd and Brightstar Engineering + * + * Created by Charles Manning +@@ -22,11 +22,6 @@ + extern struct nand_oobinfo yaffs_oobinfo; + extern struct nand_oobinfo yaffs_noeccinfo; + #endif +- +-int nandmtd_WriteChunkToNAND(yaffs_Device *dev, int chunkInNAND, +- const __u8 *data, const yaffs_Spare *spare); +-int nandmtd_ReadChunkFromNAND(yaffs_Device *dev, int chunkInNAND, __u8 *data, +- yaffs_Spare *spare); +-int nandmtd_EraseBlockInNAND(yaffs_Device *dev, int blockNumber); +-int nandmtd_InitialiseNAND(yaffs_Device *dev); ++int nandmtd_EraseBlockInNAND(yaffs_dev_t *dev, int blockNumber); ++int nandmtd_InitialiseNAND(yaffs_dev_t *dev); + #endif +--- /dev/null ++++ b/fs/yaffs2/yaffs_nameval.c +@@ -0,0 +1,197 @@ ++/* ++ * YAFFS: Yet Another Flash File System. A NAND-flash specific file system. ++ * ++ * Copyright (C) 2002-2010 Aleph One Ltd. ++ * for Toby Churchill Ltd and Brightstar Engineering ++ * ++ * Created by Charles Manning ++ * ++ * This program is free software; you can redistribute it and/or modify ++ * it under the terms of the GNU General Public License version 2 as ++ * published by the Free Software Foundation. ++ */ ++ ++/* ++ * This simple implementation of a name-value store assumes a small number of values and fits ++ * into a small finite buffer. ++ * ++ * Each attribute is stored as a record: ++ * sizeof(int) bytes record size. ++ * strnlen+1 bytes name null terminated. ++ * nbytes value. ++ * ---------- ++ * total size stored in record size ++ * ++ * This code has not been tested with unicode yet. ++ */ ++ ++ ++#include "yaffs_nameval.h" ++ ++#include "yportenv.h" ++ ++static int nval_find(const char *xb, int xb_size, const YCHAR *name, ++ int *exist_size) ++{ ++ int pos=0; ++ int size; ++ ++ memcpy(&size,xb,sizeof(int)); ++ while(size > 0 && (size < xb_size) && (pos + size < xb_size)){ ++ if(yaffs_strncmp((YCHAR *)(xb+pos+sizeof(int)),name,size) == 0){ ++ if(exist_size) ++ *exist_size = size; ++ return pos; ++ } ++ pos += size; ++ if(pos < xb_size -sizeof(int)) ++ memcpy(&size,xb + pos,sizeof(int)); ++ else ++ size = 0; ++ } ++ if(exist_size) ++ *exist_size = 0; ++ return -1; ++} ++ ++static int nval_used(const char *xb, int xb_size) ++{ ++ int pos=0; ++ int size; ++ ++ memcpy(&size,xb + pos,sizeof(int)); ++ while(size > 0 && (size < xb_size) && (pos + size < xb_size)){ ++ pos += size; ++ if(pos < xb_size -sizeof(int)) ++ memcpy(&size,xb + pos,sizeof(int)); ++ else ++ size = 0; ++ } ++ return pos; ++} ++ ++int nval_del(char *xb, int xb_size, const YCHAR *name) ++{ ++ int pos = nval_find(xb, xb_size, name, NULL); ++ int size; ++ ++ if(pos >= 0 && pos < xb_size){ ++ /* Find size, shift rest over this record, then zero out the rest of buffer */ ++ memcpy(&size,xb+pos,sizeof(int)); ++ memcpy(xb + pos, xb + pos + size, xb_size - (pos + size)); ++ memset(xb + (xb_size - size),0,size); ++ return 0; ++ } else ++ return -ENODATA; ++} ++ ++int nval_set(char *xb, int xb_size, const YCHAR *name, const char *buf, int bsize, int flags) ++{ ++ int pos; ++ int namelen = yaffs_strnlen(name,xb_size); ++ int reclen; ++ int size_exist = 0; ++ int space; ++ int start; ++ ++ pos = nval_find(xb,xb_size,name, &size_exist); ++ ++ if(flags & XATTR_CREATE && pos >= 0) ++ return -EEXIST; ++ if(flags & XATTR_REPLACE && pos < 0) ++ return -ENODATA; ++ ++ start = nval_used(xb,xb_size); ++ space = xb_size - start + size_exist; ++ ++ reclen = (sizeof(int) + namelen + 1 + bsize); ++ ++ if(reclen > space) ++ return -ENOSPC; ++ ++ if(pos >= 0){ ++ nval_del(xb,xb_size,name); ++ start = nval_used(xb, xb_size); ++ } ++ ++ pos = start; ++ ++ memcpy(xb + pos,&reclen,sizeof(int)); ++ pos +=sizeof(int); ++ yaffs_strncpy((YCHAR *)(xb + pos), name, reclen); ++ pos+= (namelen+1); ++ memcpy(xb + pos,buf,bsize); ++ return 0; ++} ++ ++int nval_get(const char *xb, int xb_size, const YCHAR *name, char *buf, int bsize) ++{ ++ int pos = nval_find(xb,xb_size,name,NULL); ++ int size; ++ ++ if(pos >= 0 && pos< xb_size){ ++ ++ memcpy(&size,xb +pos,sizeof(int)); ++ pos+=sizeof(int); /* advance past record length */ ++ size -= sizeof(int); ++ ++ /* Advance over name string */ ++ while(xb[pos] && size > 0 && pos < xb_size){ ++ pos++; ++ size--; ++ } ++ /*Advance over NUL */ ++ pos++; ++ size--; ++ ++ if(size <= bsize){ ++ memcpy(buf,xb + pos,size); ++ return size; ++ } ++ ++ } ++ if(pos >= 0) ++ return -ERANGE; ++ else ++ return -ENODATA; ++} ++ ++int nval_list(const char *xb, int xb_size, char *buf, int bsize) ++{ ++ int pos = 0; ++ int size; ++ int name_len; ++ int ncopied = 0; ++ int filled = 0; ++ ++ memcpy(&size,xb + pos,sizeof(int)); ++ while(size > sizeof(int) && size <= xb_size && (pos + size) < xb_size && !filled){ ++ pos+= sizeof(int); ++ size-=sizeof(int); ++ name_len = yaffs_strnlen((YCHAR *)(xb + pos), size); ++ if(ncopied + name_len + 1 < bsize){ ++ memcpy(buf,xb+pos,name_len * sizeof(YCHAR)); ++ buf+= name_len; ++ *buf = '\0'; ++ buf++; ++ if(sizeof(YCHAR) > 1){ ++ *buf = '\0'; ++ buf++; ++ } ++ ncopied += (name_len+1); ++ } else ++ filled = 1; ++ pos+=size; ++ if(pos < xb_size -sizeof(int)) ++ memcpy(&size,xb + pos,sizeof(int)); ++ else ++ size = 0; ++ } ++ return ncopied; ++} ++ ++ ++int nval_hasvalues(const char *xb, int xb_size) ++{ ++ return nval_used(xb, xb_size) > 0; ++} +--- /dev/null ++++ b/fs/yaffs2/yaffs_nameval.h +@@ -0,0 +1,25 @@ ++/* ++ * YAFFS: Yet another Flash File System . A NAND-flash specific file system. ++ * ++ * Copyright (C) 2002-2010 Aleph One Ltd. ++ * for Toby Churchill Ltd and Brightstar Engineering ++ * ++ * Created by Charles Manning ++ * ++ * This program is free software; you can redistribute it and/or modify ++ * it under the terms of the GNU Lesser General Public License version 2.1 as ++ * published by the Free Software Foundation. ++ * ++ * Note: Only YAFFS headers are LGPL, YAFFS C code is covered by GPL. ++ */ ++#ifndef __NAMEVAL_H__ ++#define __NAMEVAL_H__ ++ ++#include "yportenv.h" ++ ++int nval_del(char *xb, int xb_size, const YCHAR *name); ++int nval_set(char *xb, int xb_size, const YCHAR *name, const char *buf, int bsize, int flags); ++int nval_get(const char *xb, int xb_size, const YCHAR *name, char *buf, int bsize); ++int nval_list(const char *xb, int xb_size, char *buf, int bsize); ++int nval_hasvalues(const char *xb, int xb_size); ++#endif +--- a/fs/yaffs2/yaffs_nand.c ++++ b/fs/yaffs2/yaffs_nand.c +@@ -1,7 +1,7 @@ + /* + * YAFFS: Yet Another Flash File System. A NAND-flash specific file system. + * +- * Copyright (C) 2002-2007 Aleph One Ltd. ++ * Copyright (C) 2002-2010 Aleph One Ltd. + * for Toby Churchill Ltd and Brightstar Engineering + * + * Created by Charles Manning +@@ -11,124 +11,129 @@ + * published by the Free Software Foundation. + */ + +-const char *yaffs_nand_c_version = +- "$Id: yaffs_nand.c,v 1.10 2009-03-06 17:20:54 wookey Exp $"; +- + #include "yaffs_nand.h" + #include "yaffs_tagscompat.h" + #include "yaffs_tagsvalidity.h" + + #include "yaffs_getblockinfo.h" + +-int yaffs_ReadChunkWithTagsFromNAND(yaffs_Device *dev, int chunkInNAND, ++int yaffs_rd_chunk_tags_nand(yaffs_dev_t *dev, int nand_chunk, + __u8 *buffer, +- yaffs_ExtendedTags *tags) ++ yaffs_ext_tags *tags) + { + int result; +- yaffs_ExtendedTags localTags; ++ yaffs_ext_tags localTags; ++ ++ int realignedChunkInNAND = nand_chunk - dev->chunk_offset; + +- int realignedChunkInNAND = chunkInNAND - dev->chunkOffset; ++ dev->n_page_reads++; + + /* If there are no tags provided, use local tags to get prioritised gc working */ + if (!tags) + tags = &localTags; + +- if (dev->readChunkWithTagsFromNAND) +- result = dev->readChunkWithTagsFromNAND(dev, realignedChunkInNAND, buffer, ++ if (dev->param.read_chunk_tags_fn) ++ result = dev->param.read_chunk_tags_fn(dev, realignedChunkInNAND, buffer, + tags); + else +- result = yaffs_TagsCompatabilityReadChunkWithTagsFromNAND(dev, ++ result = yaffs_tags_compat_rd(dev, + realignedChunkInNAND, + buffer, + tags); + if (tags && +- tags->eccResult > YAFFS_ECC_RESULT_NO_ERROR) { ++ tags->ecc_result > YAFFS_ECC_RESULT_NO_ERROR) { + +- yaffs_BlockInfo *bi = yaffs_GetBlockInfo(dev, chunkInNAND/dev->nChunksPerBlock); +- yaffs_HandleChunkError(dev, bi); ++ yaffs_block_info_t *bi; ++ bi = yaffs_get_block_info(dev, nand_chunk/dev->param.chunks_per_block); ++ yaffs_handle_chunk_error(dev, bi); + } + + return result; + } + +-int yaffs_WriteChunkWithTagsToNAND(yaffs_Device *dev, +- int chunkInNAND, ++int yaffs_wr_chunk_tags_nand(yaffs_dev_t *dev, ++ int nand_chunk, + const __u8 *buffer, +- yaffs_ExtendedTags *tags) ++ yaffs_ext_tags *tags) + { +- chunkInNAND -= dev->chunkOffset; ++ ++ dev->n_page_writes++; ++ ++ nand_chunk -= dev->chunk_offset; + + + if (tags) { +- tags->sequenceNumber = dev->sequenceNumber; +- tags->chunkUsed = 1; +- if (!yaffs_ValidateTags(tags)) { ++ tags->seq_number = dev->seq_number; ++ tags->chunk_used = 1; ++ if (!yaffs_validate_tags(tags)) { + T(YAFFS_TRACE_ERROR, + (TSTR("Writing uninitialised tags" TENDSTR))); + YBUG(); + } + T(YAFFS_TRACE_WRITE, +- (TSTR("Writing chunk %d tags %d %d" TENDSTR), chunkInNAND, +- tags->objectId, tags->chunkId)); ++ (TSTR("Writing chunk %d tags %d %d" TENDSTR), nand_chunk, ++ tags->obj_id, tags->chunk_id)); + } else { + T(YAFFS_TRACE_ERROR, (TSTR("Writing with no tags" TENDSTR))); + YBUG(); + } + +- if (dev->writeChunkWithTagsToNAND) +- return dev->writeChunkWithTagsToNAND(dev, chunkInNAND, buffer, ++ if (dev->param.write_chunk_tags_fn) ++ return dev->param.write_chunk_tags_fn(dev, nand_chunk, buffer, + tags); + else +- return yaffs_TagsCompatabilityWriteChunkWithTagsToNAND(dev, +- chunkInNAND, ++ return yaffs_tags_compat_wr(dev, ++ nand_chunk, + buffer, + tags); + } + +-int yaffs_MarkBlockBad(yaffs_Device *dev, int blockNo) ++int yaffs_mark_bad(yaffs_dev_t *dev, int block_no) + { +- blockNo -= dev->blockOffset; ++ block_no -= dev->block_offset; ++ + +-; +- if (dev->markNANDBlockBad) +- return dev->markNANDBlockBad(dev, blockNo); ++ if (dev->param.bad_block_fn) ++ return dev->param.bad_block_fn(dev, block_no); + else +- return yaffs_TagsCompatabilityMarkNANDBlockBad(dev, blockNo); ++ return yaffs_tags_compat_mark_bad(dev, block_no); + } + +-int yaffs_QueryInitialBlockState(yaffs_Device *dev, +- int blockNo, +- yaffs_BlockState *state, +- __u32 *sequenceNumber) ++int yaffs_query_init_block_state(yaffs_dev_t *dev, ++ int block_no, ++ yaffs_block_state_t *state, ++ __u32 *seq_number) + { +- blockNo -= dev->blockOffset; ++ block_no -= dev->block_offset; + +- if (dev->queryNANDBlock) +- return dev->queryNANDBlock(dev, blockNo, state, sequenceNumber); ++ if (dev->param.query_block_fn) ++ return dev->param.query_block_fn(dev, block_no, state, seq_number); + else +- return yaffs_TagsCompatabilityQueryNANDBlock(dev, blockNo, ++ return yaffs_tags_compat_query_block(dev, block_no, + state, +- sequenceNumber); ++ seq_number); + } + + +-int yaffs_EraseBlockInNAND(struct yaffs_DeviceStruct *dev, +- int blockInNAND) ++int yaffs_erase_block(struct yaffs_dev_s *dev, ++ int flash_block) + { + int result; + +- blockInNAND -= dev->blockOffset; ++ flash_block -= dev->block_offset; + ++ dev->n_erasures++; + +- dev->nBlockErasures++; +- result = dev->eraseBlockInNAND(dev, blockInNAND); ++ result = dev->param.erase_fn(dev, flash_block); + + return result; + } + +-int yaffs_InitialiseNAND(struct yaffs_DeviceStruct *dev) ++int yaffs_init_nand(struct yaffs_dev_s *dev) + { +- return dev->initialiseNAND(dev); ++ if(dev->param.initialise_flash_fn) ++ return dev->param.initialise_flash_fn(dev); ++ return YAFFS_OK; + } + + +--- a/fs/yaffs2/yaffs_nandemul2k.h ++++ b/fs/yaffs2/yaffs_nandemul2k.h +@@ -1,7 +1,7 @@ + /* + * YAFFS: Yet another Flash File System . A NAND-flash specific file system. + * +- * Copyright (C) 2002-2007 Aleph One Ltd. ++ * Copyright (C) 2002-2010 Aleph One Ltd. + * for Toby Churchill Ltd and Brightstar Engineering + * + * Created by Charles Manning +@@ -20,18 +20,18 @@ + + #include "yaffs_guts.h" + +-int nandemul2k_WriteChunkWithTagsToNAND(struct yaffs_DeviceStruct *dev, +- int chunkInNAND, const __u8 *data, +- const yaffs_ExtendedTags *tags); +-int nandemul2k_ReadChunkWithTagsFromNAND(struct yaffs_DeviceStruct *dev, +- int chunkInNAND, __u8 *data, +- yaffs_ExtendedTags *tags); +-int nandemul2k_MarkNANDBlockBad(struct yaffs_DeviceStruct *dev, int blockNo); +-int nandemul2k_QueryNANDBlock(struct yaffs_DeviceStruct *dev, int blockNo, +- yaffs_BlockState *state, __u32 *sequenceNumber); +-int nandemul2k_EraseBlockInNAND(struct yaffs_DeviceStruct *dev, +- int blockInNAND); +-int nandemul2k_InitialiseNAND(struct yaffs_DeviceStruct *dev); ++int nandemul2k_WriteChunkWithTagsToNAND(struct yaffs_dev_s *dev, ++ int nand_chunk, const __u8 *data, ++ const yaffs_ext_tags *tags); ++int nandemul2k_ReadChunkWithTagsFromNAND(struct yaffs_dev_s *dev, ++ int nand_chunk, __u8 *data, ++ yaffs_ext_tags *tags); ++int nandemul2k_MarkNANDBlockBad(struct yaffs_dev_s *dev, int block_no); ++int nandemul2k_QueryNANDBlock(struct yaffs_dev_s *dev, int block_no, ++ yaffs_block_state_t *state, __u32 *seq_number); ++int nandemul2k_EraseBlockInNAND(struct yaffs_dev_s *dev, ++ int flash_block); ++int nandemul2k_InitialiseNAND(struct yaffs_dev_s *dev); + int nandemul2k_GetBytesPerChunk(void); + int nandemul2k_GetChunksPerBlock(void); + int nandemul2k_GetNumberOfBlocks(void); +--- a/fs/yaffs2/yaffs_nand.h ++++ b/fs/yaffs2/yaffs_nand.h +@@ -1,7 +1,7 @@ + /* + * YAFFS: Yet another Flash File System . A NAND-flash specific file system. + * +- * Copyright (C) 2002-2007 Aleph One Ltd. ++ * Copyright (C) 2002-2010 Aleph One Ltd. + * for Toby Churchill Ltd and Brightstar Engineering + * + * Created by Charles Manning +@@ -19,26 +19,26 @@ + + + +-int yaffs_ReadChunkWithTagsFromNAND(yaffs_Device *dev, int chunkInNAND, ++int yaffs_rd_chunk_tags_nand(yaffs_dev_t *dev, int nand_chunk, + __u8 *buffer, +- yaffs_ExtendedTags *tags); ++ yaffs_ext_tags *tags); + +-int yaffs_WriteChunkWithTagsToNAND(yaffs_Device *dev, +- int chunkInNAND, ++int yaffs_wr_chunk_tags_nand(yaffs_dev_t *dev, ++ int nand_chunk, + const __u8 *buffer, +- yaffs_ExtendedTags *tags); ++ yaffs_ext_tags *tags); + +-int yaffs_MarkBlockBad(yaffs_Device *dev, int blockNo); ++int yaffs_mark_bad(yaffs_dev_t *dev, int block_no); + +-int yaffs_QueryInitialBlockState(yaffs_Device *dev, +- int blockNo, +- yaffs_BlockState *state, +- unsigned *sequenceNumber); ++int yaffs_query_init_block_state(yaffs_dev_t *dev, ++ int block_no, ++ yaffs_block_state_t *state, ++ unsigned *seq_number); + +-int yaffs_EraseBlockInNAND(struct yaffs_DeviceStruct *dev, +- int blockInNAND); ++int yaffs_erase_block(struct yaffs_dev_s *dev, ++ int flash_block); + +-int yaffs_InitialiseNAND(struct yaffs_DeviceStruct *dev); ++int yaffs_init_nand(struct yaffs_dev_s *dev); + + #endif + +--- a/fs/yaffs2/yaffs_packedtags1.c ++++ b/fs/yaffs2/yaffs_packedtags1.c +@@ -1,7 +1,7 @@ + /* + * YAFFS: Yet Another Flash File System. A NAND-flash specific file system. + * +- * Copyright (C) 2002-2007 Aleph One Ltd. ++ * Copyright (C) 2002-2010 Aleph One Ltd. + * for Toby Churchill Ltd and Brightstar Engineering + * + * Created by Charles Manning +@@ -14,37 +14,37 @@ + #include "yaffs_packedtags1.h" + #include "yportenv.h" + +-void yaffs_PackTags1(yaffs_PackedTags1 *pt, const yaffs_ExtendedTags *t) ++void yaffs_PackTags1(yaffs_PackedTags1 *pt, const yaffs_ext_tags *t) + { +- pt->chunkId = t->chunkId; +- pt->serialNumber = t->serialNumber; +- pt->byteCount = t->byteCount; +- pt->objectId = t->objectId; ++ pt->chunk_id = t->chunk_id; ++ pt->serial_number = t->serial_number; ++ pt->n_bytes = t->n_bytes; ++ pt->obj_id = t->obj_id; + pt->ecc = 0; +- pt->deleted = (t->chunkDeleted) ? 0 : 1; ++ pt->deleted = (t->is_deleted) ? 0 : 1; + pt->unusedStuff = 0; + pt->shouldBeFF = 0xFFFFFFFF; + + } + +-void yaffs_UnpackTags1(yaffs_ExtendedTags *t, const yaffs_PackedTags1 *pt) ++void yaffs_unpack_tags1(yaffs_ext_tags *t, const yaffs_PackedTags1 *pt) + { + static const __u8 allFF[] = + { 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, + 0xff }; + + if (memcmp(allFF, pt, sizeof(yaffs_PackedTags1))) { +- t->blockBad = 0; ++ t->block_bad = 0; + if (pt->shouldBeFF != 0xFFFFFFFF) +- t->blockBad = 1; +- t->chunkUsed = 1; +- t->objectId = pt->objectId; +- t->chunkId = pt->chunkId; +- t->byteCount = pt->byteCount; +- t->eccResult = YAFFS_ECC_RESULT_NO_ERROR; +- t->chunkDeleted = (pt->deleted) ? 0 : 1; +- t->serialNumber = pt->serialNumber; ++ t->block_bad = 1; ++ t->chunk_used = 1; ++ t->obj_id = pt->obj_id; ++ t->chunk_id = pt->chunk_id; ++ t->n_bytes = pt->n_bytes; ++ t->ecc_result = YAFFS_ECC_RESULT_NO_ERROR; ++ t->is_deleted = (pt->deleted) ? 0 : 1; ++ t->serial_number = pt->serial_number; + } else { +- memset(t, 0, sizeof(yaffs_ExtendedTags)); ++ memset(t, 0, sizeof(yaffs_ext_tags)); + } + } +--- a/fs/yaffs2/yaffs_packedtags1.h ++++ b/fs/yaffs2/yaffs_packedtags1.h +@@ -1,7 +1,7 @@ + /* + * YAFFS: Yet another Flash File System . A NAND-flash specific file system. + * +- * Copyright (C) 2002-2007 Aleph One Ltd. ++ * Copyright (C) 2002-2010 Aleph One Ltd. + * for Toby Churchill Ltd and Brightstar Engineering + * + * Created by Charles Manning +@@ -21,10 +21,10 @@ + #include "yaffs_guts.h" + + typedef struct { +- unsigned chunkId:20; +- unsigned serialNumber:2; +- unsigned byteCount:10; +- unsigned objectId:18; ++ unsigned chunk_id:20; ++ unsigned serial_number:2; ++ unsigned n_bytes:10; ++ unsigned obj_id:18; + unsigned ecc:12; + unsigned deleted:1; + unsigned unusedStuff:1; +@@ -32,6 +32,6 @@ typedef struct { + + } yaffs_PackedTags1; + +-void yaffs_PackTags1(yaffs_PackedTags1 *pt, const yaffs_ExtendedTags *t); +-void yaffs_UnpackTags1(yaffs_ExtendedTags *t, const yaffs_PackedTags1 *pt); ++void yaffs_PackTags1(yaffs_PackedTags1 *pt, const yaffs_ext_tags *t); ++void yaffs_unpack_tags1(yaffs_ext_tags *t, const yaffs_PackedTags1 *pt); + #endif +--- a/fs/yaffs2/yaffs_packedtags2.c ++++ b/fs/yaffs2/yaffs_packedtags2.c +@@ -1,7 +1,7 @@ + /* + * YAFFS: Yet Another Flash File System. A NAND-flash specific file system. + * +- * Copyright (C) 2002-2007 Aleph One Ltd. ++ * Copyright (C) 2002-2010 Aleph One Ltd. + * for Toby Churchill Ltd and Brightstar Engineering + * + * Created by Charles Manning +@@ -13,6 +13,7 @@ + + #include "yaffs_packedtags2.h" + #include "yportenv.h" ++#include "yaffs_trace.h" + #include "yaffs_tagsvalidity.h" + + /* This code packs a set of extended tags into a binary structure for +@@ -24,7 +25,7 @@ + * This is defined by having the EXTRA_HEADER_INFO_FLAG set. + */ + +-/* Extra flags applied to chunkId */ ++/* Extra flags applied to chunk_id */ + + #define EXTRA_HEADER_INFO_FLAG 0x80000000 + #define EXTRA_SHRINK_FLAG 0x40000000 +@@ -42,53 +43,53 @@ static void yaffs_DumpPackedTags2TagsPar + { + T(YAFFS_TRACE_MTD, + (TSTR("packed tags obj %d chunk %d byte %d seq %d" TENDSTR), +- ptt->objectId, ptt->chunkId, ptt->byteCount, +- ptt->sequenceNumber)); ++ ptt->obj_id, ptt->chunk_id, ptt->n_bytes, ++ ptt->seq_number)); + } + static void yaffs_DumpPackedTags2(const yaffs_PackedTags2 *pt) + { + yaffs_DumpPackedTags2TagsPart(&pt->t); + } + +-static void yaffs_DumpTags2(const yaffs_ExtendedTags *t) ++static void yaffs_DumpTags2(const yaffs_ext_tags *t) + { + T(YAFFS_TRACE_MTD, + (TSTR + ("ext.tags eccres %d blkbad %d chused %d obj %d chunk%d byte %d del %d ser %d seq %d" +- TENDSTR), t->eccResult, t->blockBad, t->chunkUsed, t->objectId, +- t->chunkId, t->byteCount, t->chunkDeleted, t->serialNumber, +- t->sequenceNumber)); ++ TENDSTR), t->ecc_result, t->block_bad, t->chunk_used, t->obj_id, ++ t->chunk_id, t->n_bytes, t->is_deleted, t->serial_number, ++ t->seq_number)); + + } + + void yaffs_PackTags2TagsPart(yaffs_PackedTags2TagsPart *ptt, +- const yaffs_ExtendedTags *t) ++ const yaffs_ext_tags *t) + { +- ptt->chunkId = t->chunkId; +- ptt->sequenceNumber = t->sequenceNumber; +- ptt->byteCount = t->byteCount; +- ptt->objectId = t->objectId; ++ ptt->chunk_id = t->chunk_id; ++ ptt->seq_number = t->seq_number; ++ ptt->n_bytes = t->n_bytes; ++ ptt->obj_id = t->obj_id; + +- if (t->chunkId == 0 && t->extraHeaderInfoAvailable) { ++ if (t->chunk_id == 0 && t->extra_available) { + /* Store the extra header info instead */ +- /* We save the parent object in the chunkId */ +- ptt->chunkId = EXTRA_HEADER_INFO_FLAG +- | t->extraParentObjectId; +- if (t->extraIsShrinkHeader) +- ptt->chunkId |= EXTRA_SHRINK_FLAG; +- if (t->extraShadows) +- ptt->chunkId |= EXTRA_SHADOWS_FLAG; +- +- ptt->objectId &= ~EXTRA_OBJECT_TYPE_MASK; +- ptt->objectId |= +- (t->extraObjectType << EXTRA_OBJECT_TYPE_SHIFT); +- +- if (t->extraObjectType == YAFFS_OBJECT_TYPE_HARDLINK) +- ptt->byteCount = t->extraEquivalentObjectId; +- else if (t->extraObjectType == YAFFS_OBJECT_TYPE_FILE) +- ptt->byteCount = t->extraFileLength; ++ /* We save the parent object in the chunk_id */ ++ ptt->chunk_id = EXTRA_HEADER_INFO_FLAG ++ | t->extra_parent_id; ++ if (t->extra_is_shrink) ++ ptt->chunk_id |= EXTRA_SHRINK_FLAG; ++ if (t->extra_shadows) ++ ptt->chunk_id |= EXTRA_SHADOWS_FLAG; ++ ++ ptt->obj_id &= ~EXTRA_OBJECT_TYPE_MASK; ++ ptt->obj_id |= ++ (t->extra_obj_type << EXTRA_OBJECT_TYPE_SHIFT); ++ ++ if (t->extra_obj_type == YAFFS_OBJECT_TYPE_HARDLINK) ++ ptt->n_bytes = t->extra_equiv_id; ++ else if (t->extra_obj_type == YAFFS_OBJECT_TYPE_FILE) ++ ptt->n_bytes = t->extra_length; + else +- ptt->byteCount = 0; ++ ptt->n_bytes = 0; + } + + yaffs_DumpPackedTags2TagsPart(ptt); +@@ -96,59 +97,56 @@ void yaffs_PackTags2TagsPart(yaffs_Packe + } + + +-void yaffs_PackTags2(yaffs_PackedTags2 *pt, const yaffs_ExtendedTags *t) ++void yaffs_PackTags2(yaffs_PackedTags2 *pt, const yaffs_ext_tags *t, int tagsECC) + { + yaffs_PackTags2TagsPart(&pt->t, t); + +-#ifndef YAFFS_IGNORE_TAGS_ECC +- { +- yaffs_ECCCalculateOther((unsigned char *)&pt->t, ++ if(tagsECC) ++ yaffs_ecc_calc_other((unsigned char *)&pt->t, + sizeof(yaffs_PackedTags2TagsPart), + &pt->ecc); +- } +-#endif + } + + +-void yaffs_UnpackTags2TagsPart(yaffs_ExtendedTags *t, ++void yaffs_unpack_tags2tags_part(yaffs_ext_tags *t, + yaffs_PackedTags2TagsPart *ptt) + { + +- memset(t, 0, sizeof(yaffs_ExtendedTags)); ++ memset(t, 0, sizeof(yaffs_ext_tags)); + +- yaffs_InitialiseTags(t); ++ yaffs_init_tags(t); + +- if (ptt->sequenceNumber != 0xFFFFFFFF) { +- t->blockBad = 0; +- t->chunkUsed = 1; +- t->objectId = ptt->objectId; +- t->chunkId = ptt->chunkId; +- t->byteCount = ptt->byteCount; +- t->chunkDeleted = 0; +- t->serialNumber = 0; +- t->sequenceNumber = ptt->sequenceNumber; ++ if (ptt->seq_number != 0xFFFFFFFF) { ++ t->block_bad = 0; ++ t->chunk_used = 1; ++ t->obj_id = ptt->obj_id; ++ t->chunk_id = ptt->chunk_id; ++ t->n_bytes = ptt->n_bytes; ++ t->is_deleted = 0; ++ t->serial_number = 0; ++ t->seq_number = ptt->seq_number; + + /* Do extra header info stuff */ + +- if (ptt->chunkId & EXTRA_HEADER_INFO_FLAG) { +- t->chunkId = 0; +- t->byteCount = 0; +- +- t->extraHeaderInfoAvailable = 1; +- t->extraParentObjectId = +- ptt->chunkId & (~(ALL_EXTRA_FLAGS)); +- t->extraIsShrinkHeader = +- (ptt->chunkId & EXTRA_SHRINK_FLAG) ? 1 : 0; +- t->extraShadows = +- (ptt->chunkId & EXTRA_SHADOWS_FLAG) ? 1 : 0; +- t->extraObjectType = +- ptt->objectId >> EXTRA_OBJECT_TYPE_SHIFT; +- t->objectId &= ~EXTRA_OBJECT_TYPE_MASK; ++ if (ptt->chunk_id & EXTRA_HEADER_INFO_FLAG) { ++ t->chunk_id = 0; ++ t->n_bytes = 0; ++ ++ t->extra_available = 1; ++ t->extra_parent_id = ++ ptt->chunk_id & (~(ALL_EXTRA_FLAGS)); ++ t->extra_is_shrink = ++ (ptt->chunk_id & EXTRA_SHRINK_FLAG) ? 1 : 0; ++ t->extra_shadows = ++ (ptt->chunk_id & EXTRA_SHADOWS_FLAG) ? 1 : 0; ++ t->extra_obj_type = ++ ptt->obj_id >> EXTRA_OBJECT_TYPE_SHIFT; ++ t->obj_id &= ~EXTRA_OBJECT_TYPE_MASK; + +- if (t->extraObjectType == YAFFS_OBJECT_TYPE_HARDLINK) +- t->extraEquivalentObjectId = ptt->byteCount; ++ if (t->extra_obj_type == YAFFS_OBJECT_TYPE_HARDLINK) ++ t->extra_equiv_id = ptt->n_bytes; + else +- t->extraFileLength = ptt->byteCount; ++ t->extra_length = ptt->n_bytes; + } + } + +@@ -158,49 +156,43 @@ void yaffs_UnpackTags2TagsPart(yaffs_Ext + } + + +-void yaffs_UnpackTags2(yaffs_ExtendedTags *t, yaffs_PackedTags2 *pt) ++void yaffs_unpack_tags2(yaffs_ext_tags *t, yaffs_PackedTags2 *pt, int tagsECC) + { + +- yaffs_ECCResult eccResult = YAFFS_ECC_RESULT_NO_ERROR; ++ yaffs_ecc_result ecc_result = YAFFS_ECC_RESULT_NO_ERROR; + +- if (pt->t.sequenceNumber != 0xFFFFFFFF) { +- /* Page is in use */ +-#ifndef YAFFS_IGNORE_TAGS_ECC +- { +- yaffs_ECCOther ecc; +- int result; +- yaffs_ECCCalculateOther((unsigned char *)&pt->t, +- sizeof +- (yaffs_PackedTags2TagsPart), +- &ecc); +- result = +- yaffs_ECCCorrectOther((unsigned char *)&pt->t, +- sizeof +- (yaffs_PackedTags2TagsPart), +- &pt->ecc, &ecc); +- switch (result) { ++ if (pt->t.seq_number != 0xFFFFFFFF && ++ tagsECC){ ++ /* Chunk is in use and we need to do ECC */ ++ ++ yaffs_ECCOther ecc; ++ int result; ++ yaffs_ecc_calc_other((unsigned char *)&pt->t, ++ sizeof(yaffs_PackedTags2TagsPart), ++ &ecc); ++ result = yaffs_ecc_correct_other((unsigned char *)&pt->t, ++ sizeof(yaffs_PackedTags2TagsPart), ++ &pt->ecc, &ecc); ++ switch (result) { + case 0: +- eccResult = YAFFS_ECC_RESULT_NO_ERROR; ++ ecc_result = YAFFS_ECC_RESULT_NO_ERROR; + break; + case 1: +- eccResult = YAFFS_ECC_RESULT_FIXED; ++ ecc_result = YAFFS_ECC_RESULT_FIXED; + break; + case -1: +- eccResult = YAFFS_ECC_RESULT_UNFIXED; ++ ecc_result = YAFFS_ECC_RESULT_UNFIXED; + break; + default: +- eccResult = YAFFS_ECC_RESULT_UNKNOWN; +- } ++ ecc_result = YAFFS_ECC_RESULT_UNKNOWN; + } +-#endif + } + +- yaffs_UnpackTags2TagsPart(t, &pt->t); ++ yaffs_unpack_tags2tags_part(t, &pt->t); + +- t->eccResult = eccResult; ++ t->ecc_result = ecc_result; + + yaffs_DumpPackedTags2(pt); + yaffs_DumpTags2(t); +- + } + +--- a/fs/yaffs2/yaffs_packedtags2.h ++++ b/fs/yaffs2/yaffs_packedtags2.h +@@ -1,7 +1,7 @@ + /* + * YAFFS: Yet another Flash File System . A NAND-flash specific file system. + * +- * Copyright (C) 2002-2007 Aleph One Ltd. ++ * Copyright (C) 2002-2010 Aleph One Ltd. + * for Toby Churchill Ltd and Brightstar Engineering + * + * Created by Charles Manning +@@ -22,10 +22,10 @@ + #include "yaffs_ecc.h" + + typedef struct { +- unsigned sequenceNumber; +- unsigned objectId; +- unsigned chunkId; +- unsigned byteCount; ++ unsigned seq_number; ++ unsigned obj_id; ++ unsigned chunk_id; ++ unsigned n_bytes; + } yaffs_PackedTags2TagsPart; + + typedef struct { +@@ -34,10 +34,10 @@ typedef struct { + } yaffs_PackedTags2; + + /* Full packed tags with ECC, used for oob tags */ +-void yaffs_PackTags2(yaffs_PackedTags2 *pt, const yaffs_ExtendedTags *t); +-void yaffs_UnpackTags2(yaffs_ExtendedTags *t, yaffs_PackedTags2 *pt); ++void yaffs_PackTags2(yaffs_PackedTags2 *pt, const yaffs_ext_tags *t, int tagsECC); ++void yaffs_unpack_tags2(yaffs_ext_tags *t, yaffs_PackedTags2 *pt, int tagsECC); + + /* Only the tags part (no ECC for use with inband tags */ +-void yaffs_PackTags2TagsPart(yaffs_PackedTags2TagsPart *pt, const yaffs_ExtendedTags *t); +-void yaffs_UnpackTags2TagsPart(yaffs_ExtendedTags *t, yaffs_PackedTags2TagsPart *pt); ++void yaffs_PackTags2TagsPart(yaffs_PackedTags2TagsPart *pt, const yaffs_ext_tags *t); ++void yaffs_unpack_tags2tags_part(yaffs_ext_tags *t, yaffs_PackedTags2TagsPart *pt); + #endif +--- a/fs/yaffs2/yaffs_qsort.h ++++ b/fs/yaffs2/yaffs_qsort.h +@@ -1,7 +1,7 @@ + /* + * YAFFS: Yet another Flash File System . A NAND-flash specific file system. + * +- * Copyright (C) 2002-2007 Aleph One Ltd. ++ * Copyright (C) 2002-2010 Aleph One Ltd. + * for Toby Churchill Ltd and Brightstar Engineering + * + * Created by Charles Manning +@@ -17,7 +17,18 @@ + #ifndef __YAFFS_QSORT_H__ + #define __YAFFS_QSORT_H__ + ++#ifdef __KERNEL__ ++#include ++ ++extern void yaffs_qsort(void *const base, size_t total_elems, size_t size, ++ int (*cmp)(const void *, const void *)){ ++ sort(base, total_elems, size, cmp, NULL); ++} ++ ++#else ++ + extern void yaffs_qsort(void *const base, size_t total_elems, size_t size, + int (*cmp)(const void *, const void *)); + + #endif ++#endif +--- a/fs/yaffs2/yaffs_tagscompat.c ++++ b/fs/yaffs2/yaffs_tagscompat.c +@@ -1,7 +1,7 @@ + /* + * YAFFS: Yet Another Flash File System. A NAND-flash specific file system. + * +- * Copyright (C) 2002-2007 Aleph One Ltd. ++ * Copyright (C) 2002-2010 Aleph One Ltd. + * for Toby Churchill Ltd and Brightstar Engineering + * + * Created by Charles Manning +@@ -15,19 +15,20 @@ + #include "yaffs_tagscompat.h" + #include "yaffs_ecc.h" + #include "yaffs_getblockinfo.h" ++#include "yaffs_trace.h" + +-static void yaffs_HandleReadDataError(yaffs_Device *dev, int chunkInNAND); ++static void yaffs_handle_rd_data_error(yaffs_dev_t *dev, int nand_chunk); + #ifdef NOTYET +-static void yaffs_CheckWrittenBlock(yaffs_Device *dev, int chunkInNAND); +-static void yaffs_HandleWriteChunkOk(yaffs_Device *dev, int chunkInNAND, ++static void yaffs_check_written_block(yaffs_dev_t *dev, int nand_chunk); ++static void yaffs_handle_chunk_wr_ok(yaffs_dev_t *dev, int nand_chunk, + const __u8 *data, +- const yaffs_Spare *spare); +-static void yaffs_HandleUpdateChunk(yaffs_Device *dev, int chunkInNAND, +- const yaffs_Spare *spare); +-static void yaffs_HandleWriteChunkError(yaffs_Device *dev, int chunkInNAND); ++ const yaffs_spare *spare); ++static void yaffs_handle_chunk_update(yaffs_dev_t *dev, int nand_chunk, ++ const yaffs_spare *spare); ++static void yaffs_handle_chunk_wr_error(yaffs_dev_t *dev, int nand_chunk); + #endif + +-static const char yaffs_countBitsTable[256] = { ++static const char yaffs_count_bits_table[256] = { + 0, 1, 1, 2, 1, 2, 2, 3, 1, 2, 2, 3, 2, 3, 3, 4, + 1, 2, 2, 3, 2, 3, 3, 4, 2, 3, 3, 4, 3, 4, 4, 5, + 1, 2, 2, 3, 2, 3, 3, 4, 2, 3, 3, 4, 3, 4, 4, 5, +@@ -46,26 +47,26 @@ static const char yaffs_countBitsTable[2 + 4, 5, 5, 6, 5, 6, 6, 7, 5, 6, 6, 7, 6, 7, 7, 8 + }; + +-int yaffs_CountBits(__u8 x) ++int yaffs_count_bits(__u8 x) + { + int retVal; +- retVal = yaffs_countBitsTable[x]; ++ retVal = yaffs_count_bits_table[x]; + return retVal; + } + + /********** Tags ECC calculations *********/ + +-void yaffs_CalcECC(const __u8 *data, yaffs_Spare *spare) ++void yaffs_calc_ecc(const __u8 *data, yaffs_spare *spare) + { +- yaffs_ECCCalculate(data, spare->ecc1); +- yaffs_ECCCalculate(&data[256], spare->ecc2); ++ yaffs_ecc_cacl(data, spare->ecc1); ++ yaffs_ecc_cacl(&data[256], spare->ecc2); + } + +-void yaffs_CalcTagsECC(yaffs_Tags *tags) ++void yaffs_calc_tags_ecc(yaffs_tags_t *tags) + { + /* Calculate an ecc */ + +- unsigned char *b = ((yaffs_TagsUnion *) tags)->asBytes; ++ unsigned char *b = ((yaffs_tags_union_t *) tags)->as_bytes; + unsigned i, j; + unsigned ecc = 0; + unsigned bit = 0; +@@ -84,24 +85,24 @@ void yaffs_CalcTagsECC(yaffs_Tags *tags) + + } + +-int yaffs_CheckECCOnTags(yaffs_Tags *tags) ++int yaffs_check_tags_ecc(yaffs_tags_t *tags) + { + unsigned ecc = tags->ecc; + +- yaffs_CalcTagsECC(tags); ++ yaffs_calc_tags_ecc(tags); + + ecc ^= tags->ecc; + + if (ecc && ecc <= 64) { + /* TODO: Handle the failure better. Retire? */ +- unsigned char *b = ((yaffs_TagsUnion *) tags)->asBytes; ++ unsigned char *b = ((yaffs_tags_union_t *) tags)->as_bytes; + + ecc--; + + b[ecc / 8] ^= (1 << (ecc & 7)); + + /* Now recvalc the ecc */ +- yaffs_CalcTagsECC(tags); ++ yaffs_calc_tags_ecc(tags); + + return 1; /* recovered error */ + } else if (ecc) { +@@ -115,76 +116,73 @@ int yaffs_CheckECCOnTags(yaffs_Tags *tag + + /********** Tags **********/ + +-static void yaffs_LoadTagsIntoSpare(yaffs_Spare *sparePtr, +- yaffs_Tags *tagsPtr) ++static void yaffs_load_tags_to_spare(yaffs_spare *sparePtr, ++ yaffs_tags_t *tagsPtr) + { +- yaffs_TagsUnion *tu = (yaffs_TagsUnion *) tagsPtr; ++ yaffs_tags_union_t *tu = (yaffs_tags_union_t *) tagsPtr; + +- yaffs_CalcTagsECC(tagsPtr); ++ yaffs_calc_tags_ecc(tagsPtr); + +- sparePtr->tagByte0 = tu->asBytes[0]; +- sparePtr->tagByte1 = tu->asBytes[1]; +- sparePtr->tagByte2 = tu->asBytes[2]; +- sparePtr->tagByte3 = tu->asBytes[3]; +- sparePtr->tagByte4 = tu->asBytes[4]; +- sparePtr->tagByte5 = tu->asBytes[5]; +- sparePtr->tagByte6 = tu->asBytes[6]; +- sparePtr->tagByte7 = tu->asBytes[7]; ++ sparePtr->tb0 = tu->as_bytes[0]; ++ sparePtr->tb1 = tu->as_bytes[1]; ++ sparePtr->tb2 = tu->as_bytes[2]; ++ sparePtr->tb3 = tu->as_bytes[3]; ++ sparePtr->tb4 = tu->as_bytes[4]; ++ sparePtr->tb5 = tu->as_bytes[5]; ++ sparePtr->tb6 = tu->as_bytes[6]; ++ sparePtr->tb7 = tu->as_bytes[7]; + } + +-static void yaffs_GetTagsFromSpare(yaffs_Device *dev, yaffs_Spare *sparePtr, +- yaffs_Tags *tagsPtr) ++static void yaffs_get_tags_from_spare(yaffs_dev_t *dev, yaffs_spare *sparePtr, ++ yaffs_tags_t *tagsPtr) + { +- yaffs_TagsUnion *tu = (yaffs_TagsUnion *) tagsPtr; ++ yaffs_tags_union_t *tu = (yaffs_tags_union_t *) tagsPtr; + int result; + +- tu->asBytes[0] = sparePtr->tagByte0; +- tu->asBytes[1] = sparePtr->tagByte1; +- tu->asBytes[2] = sparePtr->tagByte2; +- tu->asBytes[3] = sparePtr->tagByte3; +- tu->asBytes[4] = sparePtr->tagByte4; +- tu->asBytes[5] = sparePtr->tagByte5; +- tu->asBytes[6] = sparePtr->tagByte6; +- tu->asBytes[7] = sparePtr->tagByte7; ++ tu->as_bytes[0] = sparePtr->tb0; ++ tu->as_bytes[1] = sparePtr->tb1; ++ tu->as_bytes[2] = sparePtr->tb2; ++ tu->as_bytes[3] = sparePtr->tb3; ++ tu->as_bytes[4] = sparePtr->tb4; ++ tu->as_bytes[5] = sparePtr->tb5; ++ tu->as_bytes[6] = sparePtr->tb6; ++ tu->as_bytes[7] = sparePtr->tb7; + +- result = yaffs_CheckECCOnTags(tagsPtr); ++ result = yaffs_check_tags_ecc(tagsPtr); + if (result > 0) +- dev->tagsEccFixed++; ++ dev->n_tags_ecc_fixed++; + else if (result < 0) +- dev->tagsEccUnfixed++; ++ dev->n_tags_ecc_unfixed++; + } + +-static void yaffs_SpareInitialise(yaffs_Spare *spare) ++static void yaffs_spare_init(yaffs_spare *spare) + { +- memset(spare, 0xFF, sizeof(yaffs_Spare)); ++ memset(spare, 0xFF, sizeof(yaffs_spare)); + } + +-static int yaffs_WriteChunkToNAND(struct yaffs_DeviceStruct *dev, +- int chunkInNAND, const __u8 *data, +- yaffs_Spare *spare) ++static int yaffs_wr_nand(struct yaffs_dev_s *dev, ++ int nand_chunk, const __u8 *data, ++ yaffs_spare *spare) + { +- if (chunkInNAND < dev->startBlock * dev->nChunksPerBlock) { ++ if (nand_chunk < dev->param.start_block * dev->param.chunks_per_block) { + T(YAFFS_TRACE_ERROR, + (TSTR("**>> yaffs chunk %d is not valid" TENDSTR), +- chunkInNAND)); ++ nand_chunk)); + return YAFFS_FAIL; + } + +- dev->nPageWrites++; +- return dev->writeChunkToNAND(dev, chunkInNAND, data, spare); ++ return dev->param.write_chunk_fn(dev, nand_chunk, data, spare); + } + +-static int yaffs_ReadChunkFromNAND(struct yaffs_DeviceStruct *dev, +- int chunkInNAND, ++static int yaffs_rd_chunk_nand(struct yaffs_dev_s *dev, ++ int nand_chunk, + __u8 *data, +- yaffs_Spare *spare, +- yaffs_ECCResult *eccResult, ++ yaffs_spare *spare, ++ yaffs_ecc_result *ecc_result, + int doErrorCorrection) + { + int retVal; +- yaffs_Spare localSpare; +- +- dev->nPageReads++; ++ yaffs_spare localSpare; + + if (!spare && data) { + /* If we don't have a real spare, then we use a local one. */ +@@ -192,107 +190,107 @@ static int yaffs_ReadChunkFromNAND(struc + spare = &localSpare; + } + +- if (!dev->useNANDECC) { +- retVal = dev->readChunkFromNAND(dev, chunkInNAND, data, spare); ++ if (!dev->param.use_nand_ecc) { ++ retVal = dev->param.read_chunk_fn(dev, nand_chunk, data, spare); + if (data && doErrorCorrection) { + /* Do ECC correction */ + /* Todo handle any errors */ +- int eccResult1, eccResult2; ++ int ecc_result1, ecc_result2; + __u8 calcEcc[3]; + +- yaffs_ECCCalculate(data, calcEcc); +- eccResult1 = +- yaffs_ECCCorrect(data, spare->ecc1, calcEcc); +- yaffs_ECCCalculate(&data[256], calcEcc); +- eccResult2 = +- yaffs_ECCCorrect(&data[256], spare->ecc2, calcEcc); ++ yaffs_ecc_cacl(data, calcEcc); ++ ecc_result1 = ++ yaffs_ecc_correct(data, spare->ecc1, calcEcc); ++ yaffs_ecc_cacl(&data[256], calcEcc); ++ ecc_result2 = ++ yaffs_ecc_correct(&data[256], spare->ecc2, calcEcc); + +- if (eccResult1 > 0) { ++ if (ecc_result1 > 0) { + T(YAFFS_TRACE_ERROR, + (TSTR + ("**>>yaffs ecc error fix performed on chunk %d:0" +- TENDSTR), chunkInNAND)); +- dev->eccFixed++; +- } else if (eccResult1 < 0) { ++ TENDSTR), nand_chunk)); ++ dev->n_ecc_fixed++; ++ } else if (ecc_result1 < 0) { + T(YAFFS_TRACE_ERROR, + (TSTR + ("**>>yaffs ecc error unfixed on chunk %d:0" +- TENDSTR), chunkInNAND)); +- dev->eccUnfixed++; ++ TENDSTR), nand_chunk)); ++ dev->n_ecc_unfixed++; + } + +- if (eccResult2 > 0) { ++ if (ecc_result2 > 0) { + T(YAFFS_TRACE_ERROR, + (TSTR + ("**>>yaffs ecc error fix performed on chunk %d:1" +- TENDSTR), chunkInNAND)); +- dev->eccFixed++; +- } else if (eccResult2 < 0) { ++ TENDSTR), nand_chunk)); ++ dev->n_ecc_fixed++; ++ } else if (ecc_result2 < 0) { + T(YAFFS_TRACE_ERROR, + (TSTR + ("**>>yaffs ecc error unfixed on chunk %d:1" +- TENDSTR), chunkInNAND)); +- dev->eccUnfixed++; ++ TENDSTR), nand_chunk)); ++ dev->n_ecc_unfixed++; + } + +- if (eccResult1 || eccResult2) { ++ if (ecc_result1 || ecc_result2) { + /* We had a data problem on this page */ +- yaffs_HandleReadDataError(dev, chunkInNAND); ++ yaffs_handle_rd_data_error(dev, nand_chunk); + } + +- if (eccResult1 < 0 || eccResult2 < 0) +- *eccResult = YAFFS_ECC_RESULT_UNFIXED; +- else if (eccResult1 > 0 || eccResult2 > 0) +- *eccResult = YAFFS_ECC_RESULT_FIXED; ++ if (ecc_result1 < 0 || ecc_result2 < 0) ++ *ecc_result = YAFFS_ECC_RESULT_UNFIXED; ++ else if (ecc_result1 > 0 || ecc_result2 > 0) ++ *ecc_result = YAFFS_ECC_RESULT_FIXED; + else +- *eccResult = YAFFS_ECC_RESULT_NO_ERROR; ++ *ecc_result = YAFFS_ECC_RESULT_NO_ERROR; + } + } else { + /* Must allocate enough memory for spare+2*sizeof(int) */ + /* for ecc results from device. */ +- struct yaffs_NANDSpare nspare; ++ struct yaffs_nand_spare nspare; + + memset(&nspare, 0, sizeof(nspare)); + +- retVal = dev->readChunkFromNAND(dev, chunkInNAND, data, +- (yaffs_Spare *) &nspare); +- memcpy(spare, &nspare, sizeof(yaffs_Spare)); ++ retVal = dev->param.read_chunk_fn(dev, nand_chunk, data, ++ (yaffs_spare *) &nspare); ++ memcpy(spare, &nspare, sizeof(yaffs_spare)); + if (data && doErrorCorrection) { + if (nspare.eccres1 > 0) { + T(YAFFS_TRACE_ERROR, + (TSTR + ("**>>mtd ecc error fix performed on chunk %d:0" +- TENDSTR), chunkInNAND)); ++ TENDSTR), nand_chunk)); + } else if (nspare.eccres1 < 0) { + T(YAFFS_TRACE_ERROR, + (TSTR + ("**>>mtd ecc error unfixed on chunk %d:0" +- TENDSTR), chunkInNAND)); ++ TENDSTR), nand_chunk)); + } + + if (nspare.eccres2 > 0) { + T(YAFFS_TRACE_ERROR, + (TSTR + ("**>>mtd ecc error fix performed on chunk %d:1" +- TENDSTR), chunkInNAND)); ++ TENDSTR), nand_chunk)); + } else if (nspare.eccres2 < 0) { + T(YAFFS_TRACE_ERROR, + (TSTR + ("**>>mtd ecc error unfixed on chunk %d:1" +- TENDSTR), chunkInNAND)); ++ TENDSTR), nand_chunk)); + } + + if (nspare.eccres1 || nspare.eccres2) { + /* We had a data problem on this page */ +- yaffs_HandleReadDataError(dev, chunkInNAND); ++ yaffs_handle_rd_data_error(dev, nand_chunk); + } + + if (nspare.eccres1 < 0 || nspare.eccres2 < 0) +- *eccResult = YAFFS_ECC_RESULT_UNFIXED; ++ *ecc_result = YAFFS_ECC_RESULT_UNFIXED; + else if (nspare.eccres1 > 0 || nspare.eccres2 > 0) +- *eccResult = YAFFS_ECC_RESULT_FIXED; ++ *ecc_result = YAFFS_ECC_RESULT_FIXED; + else +- *eccResult = YAFFS_ECC_RESULT_NO_ERROR; ++ *ecc_result = YAFFS_ECC_RESULT_NO_ERROR; + + } + } +@@ -300,17 +298,17 @@ static int yaffs_ReadChunkFromNAND(struc + } + + #ifdef NOTYET +-static int yaffs_CheckChunkErased(struct yaffs_DeviceStruct *dev, +- int chunkInNAND) ++static int yaffs_check_chunk_erased(struct yaffs_dev_s *dev, ++ int nand_chunk) + { + static int init; + static __u8 cmpbuf[YAFFS_BYTES_PER_CHUNK]; + static __u8 data[YAFFS_BYTES_PER_CHUNK]; + /* Might as well always allocate the larger size for */ +- /* dev->useNANDECC == true; */ +- static __u8 spare[sizeof(struct yaffs_NANDSpare)]; ++ /* dev->param.use_nand_ecc == true; */ ++ static __u8 spare[sizeof(struct yaffs_nand_spare)]; + +- dev->readChunkFromNAND(dev, chunkInNAND, data, (yaffs_Spare *) spare); ++ dev->param.read_chunk_fn(dev, nand_chunk, data, (yaffs_spare *) spare); + + if (!init) { + memset(cmpbuf, 0xff, YAFFS_BYTES_PER_CHUNK); +@@ -331,14 +329,14 @@ static int yaffs_CheckChunkErased(struct + * Functions for robustisizing + */ + +-static void yaffs_HandleReadDataError(yaffs_Device *dev, int chunkInNAND) ++static void yaffs_handle_rd_data_error(yaffs_dev_t *dev, int nand_chunk) + { +- int blockInNAND = chunkInNAND / dev->nChunksPerBlock; ++ int flash_block = nand_chunk / dev->param.chunks_per_block; + + /* Mark the block for retirement */ +- yaffs_GetBlockInfo(dev, blockInNAND + dev->blockOffset)->needsRetiring = 1; ++ yaffs_get_block_info(dev, flash_block + dev->block_offset)->needs_retiring = 1; + T(YAFFS_TRACE_ERROR | YAFFS_TRACE_BAD_BLOCKS, +- (TSTR("**>>Block %d marked for retirement" TENDSTR), blockInNAND)); ++ (TSTR("**>>Block %d marked for retirement" TENDSTR), flash_block)); + + /* TODO: + * Just do a garbage collection on the affected block +@@ -348,44 +346,44 @@ static void yaffs_HandleReadDataError(ya + } + + #ifdef NOTYET +-static void yaffs_CheckWrittenBlock(yaffs_Device *dev, int chunkInNAND) ++static void yaffs_check_written_block(yaffs_dev_t *dev, int nand_chunk) + { + } + +-static void yaffs_HandleWriteChunkOk(yaffs_Device *dev, int chunkInNAND, ++static void yaffs_handle_chunk_wr_ok(yaffs_dev_t *dev, int nand_chunk, + const __u8 *data, +- const yaffs_Spare *spare) ++ const yaffs_spare *spare) + { + } + +-static void yaffs_HandleUpdateChunk(yaffs_Device *dev, int chunkInNAND, +- const yaffs_Spare *spare) ++static void yaffs_handle_chunk_update(yaffs_dev_t *dev, int nand_chunk, ++ const yaffs_spare *spare) + { + } + +-static void yaffs_HandleWriteChunkError(yaffs_Device *dev, int chunkInNAND) ++static void yaffs_handle_chunk_wr_error(yaffs_dev_t *dev, int nand_chunk) + { +- int blockInNAND = chunkInNAND / dev->nChunksPerBlock; ++ int flash_block = nand_chunk / dev->param.chunks_per_block; + + /* Mark the block for retirement */ +- yaffs_GetBlockInfo(dev, blockInNAND)->needsRetiring = 1; ++ yaffs_get_block_info(dev, flash_block)->needs_retiring = 1; + /* Delete the chunk */ +- yaffs_DeleteChunk(dev, chunkInNAND, 1, __LINE__); ++ yaffs_chunk_del(dev, nand_chunk, 1, __LINE__); + } + +-static int yaffs_VerifyCompare(const __u8 *d0, const __u8 *d1, +- const yaffs_Spare *s0, const yaffs_Spare *s1) ++static int yaffs_verify_cmp(const __u8 *d0, const __u8 *d1, ++ const yaffs_spare *s0, const yaffs_spare *s1) + { + + if (memcmp(d0, d1, YAFFS_BYTES_PER_CHUNK) != 0 || +- s0->tagByte0 != s1->tagByte0 || +- s0->tagByte1 != s1->tagByte1 || +- s0->tagByte2 != s1->tagByte2 || +- s0->tagByte3 != s1->tagByte3 || +- s0->tagByte4 != s1->tagByte4 || +- s0->tagByte5 != s1->tagByte5 || +- s0->tagByte6 != s1->tagByte6 || +- s0->tagByte7 != s1->tagByte7 || ++ s0->tb0 != s1->tb0 || ++ s0->tb1 != s1->tb1 || ++ s0->tb2 != s1->tb2 || ++ s0->tb3 != s1->tb3 || ++ s0->tb4 != s1->tb4 || ++ s0->tb5 != s1->tb5 || ++ s0->tb6 != s1->tb6 || ++ s0->tb7 != s1->tb7 || + s0->ecc1[0] != s1->ecc1[0] || + s0->ecc1[1] != s1->ecc1[1] || + s0->ecc1[2] != s1->ecc1[2] || +@@ -398,53 +396,53 @@ static int yaffs_VerifyCompare(const __u + } + #endif /* NOTYET */ + +-int yaffs_TagsCompatabilityWriteChunkWithTagsToNAND(yaffs_Device *dev, +- int chunkInNAND, ++int yaffs_tags_compat_wr(yaffs_dev_t *dev, ++ int nand_chunk, + const __u8 *data, +- const yaffs_ExtendedTags *eTags) ++ const yaffs_ext_tags *eTags) + { +- yaffs_Spare spare; +- yaffs_Tags tags; ++ yaffs_spare spare; ++ yaffs_tags_t tags; + +- yaffs_SpareInitialise(&spare); ++ yaffs_spare_init(&spare); + +- if (eTags->chunkDeleted) +- spare.pageStatus = 0; ++ if (eTags->is_deleted) ++ spare.page_status = 0; + else { +- tags.objectId = eTags->objectId; +- tags.chunkId = eTags->chunkId; ++ tags.obj_id = eTags->obj_id; ++ tags.chunk_id = eTags->chunk_id; + +- tags.byteCountLSB = eTags->byteCount & 0x3ff; ++ tags.n_bytes_lsb = eTags->n_bytes & 0x3ff; + +- if (dev->nDataBytesPerChunk >= 1024) +- tags.byteCountMSB = (eTags->byteCount >> 10) & 3; ++ if (dev->data_bytes_per_chunk >= 1024) ++ tags.n_bytes_msb = (eTags->n_bytes >> 10) & 3; + else +- tags.byteCountMSB = 3; ++ tags.n_bytes_msb = 3; + + +- tags.serialNumber = eTags->serialNumber; ++ tags.serial_number = eTags->serial_number; + +- if (!dev->useNANDECC && data) +- yaffs_CalcECC(data, &spare); ++ if (!dev->param.use_nand_ecc && data) ++ yaffs_calc_ecc(data, &spare); + +- yaffs_LoadTagsIntoSpare(&spare, &tags); ++ yaffs_load_tags_to_spare(&spare, &tags); + + } + +- return yaffs_WriteChunkToNAND(dev, chunkInNAND, data, &spare); ++ return yaffs_wr_nand(dev, nand_chunk, data, &spare); + } + +-int yaffs_TagsCompatabilityReadChunkWithTagsFromNAND(yaffs_Device *dev, +- int chunkInNAND, ++int yaffs_tags_compat_rd(yaffs_dev_t *dev, ++ int nand_chunk, + __u8 *data, +- yaffs_ExtendedTags *eTags) ++ yaffs_ext_tags *eTags) + { + +- yaffs_Spare spare; +- yaffs_Tags tags; +- yaffs_ECCResult eccResult = YAFFS_ECC_RESULT_UNKNOWN; ++ yaffs_spare spare; ++ yaffs_tags_t tags; ++ yaffs_ecc_result ecc_result = YAFFS_ECC_RESULT_UNKNOWN; + +- static yaffs_Spare spareFF; ++ static yaffs_spare spareFF; + static int init; + + if (!init) { +@@ -452,33 +450,33 @@ int yaffs_TagsCompatabilityReadChunkWith + init = 1; + } + +- if (yaffs_ReadChunkFromNAND +- (dev, chunkInNAND, data, &spare, &eccResult, 1)) { ++ if (yaffs_rd_chunk_nand ++ (dev, nand_chunk, data, &spare, &ecc_result, 1)) { + /* eTags may be NULL */ + if (eTags) { + + int deleted = +- (yaffs_CountBits(spare.pageStatus) < 7) ? 1 : 0; ++ (yaffs_count_bits(spare.page_status) < 7) ? 1 : 0; + +- eTags->chunkDeleted = deleted; +- eTags->eccResult = eccResult; +- eTags->blockBad = 0; /* We're reading it */ ++ eTags->is_deleted = deleted; ++ eTags->ecc_result = ecc_result; ++ eTags->block_bad = 0; /* We're reading it */ + /* therefore it is not a bad block */ +- eTags->chunkUsed = ++ eTags->chunk_used = + (memcmp(&spareFF, &spare, sizeof(spareFF)) != + 0) ? 1 : 0; + +- if (eTags->chunkUsed) { +- yaffs_GetTagsFromSpare(dev, &spare, &tags); ++ if (eTags->chunk_used) { ++ yaffs_get_tags_from_spare(dev, &spare, &tags); + +- eTags->objectId = tags.objectId; +- eTags->chunkId = tags.chunkId; +- eTags->byteCount = tags.byteCountLSB; ++ eTags->obj_id = tags.obj_id; ++ eTags->chunk_id = tags.chunk_id; ++ eTags->n_bytes = tags.n_bytes_lsb; + +- if (dev->nDataBytesPerChunk >= 1024) +- eTags->byteCount |= (((unsigned) tags.byteCountMSB) << 10); ++ if (dev->data_bytes_per_chunk >= 1024) ++ eTags->n_bytes |= (((unsigned) tags.n_bytes_msb) << 10); + +- eTags->serialNumber = tags.serialNumber; ++ eTags->serial_number = tags.serial_number; + } + } + +@@ -488,49 +486,49 @@ int yaffs_TagsCompatabilityReadChunkWith + } + } + +-int yaffs_TagsCompatabilityMarkNANDBlockBad(struct yaffs_DeviceStruct *dev, +- int blockInNAND) ++int yaffs_tags_compat_mark_bad(struct yaffs_dev_s *dev, ++ int flash_block) + { + +- yaffs_Spare spare; ++ yaffs_spare spare; + +- memset(&spare, 0xff, sizeof(yaffs_Spare)); ++ memset(&spare, 0xff, sizeof(yaffs_spare)); + +- spare.blockStatus = 'Y'; ++ spare.block_status = 'Y'; + +- yaffs_WriteChunkToNAND(dev, blockInNAND * dev->nChunksPerBlock, NULL, ++ yaffs_wr_nand(dev, flash_block * dev->param.chunks_per_block, NULL, + &spare); +- yaffs_WriteChunkToNAND(dev, blockInNAND * dev->nChunksPerBlock + 1, ++ yaffs_wr_nand(dev, flash_block * dev->param.chunks_per_block + 1, + NULL, &spare); + + return YAFFS_OK; + + } + +-int yaffs_TagsCompatabilityQueryNANDBlock(struct yaffs_DeviceStruct *dev, +- int blockNo, +- yaffs_BlockState *state, +- __u32 *sequenceNumber) ++int yaffs_tags_compat_query_block(struct yaffs_dev_s *dev, ++ int block_no, ++ yaffs_block_state_t *state, ++ __u32 *seq_number) + { + +- yaffs_Spare spare0, spare1; +- static yaffs_Spare spareFF; ++ yaffs_spare spare0, spare1; ++ static yaffs_spare spareFF; + static int init; +- yaffs_ECCResult dummy; ++ yaffs_ecc_result dummy; + + if (!init) { + memset(&spareFF, 0xFF, sizeof(spareFF)); + init = 1; + } + +- *sequenceNumber = 0; ++ *seq_number = 0; + +- yaffs_ReadChunkFromNAND(dev, blockNo * dev->nChunksPerBlock, NULL, ++ yaffs_rd_chunk_nand(dev, block_no * dev->param.chunks_per_block, NULL, + &spare0, &dummy, 1); +- yaffs_ReadChunkFromNAND(dev, blockNo * dev->nChunksPerBlock + 1, NULL, ++ yaffs_rd_chunk_nand(dev, block_no * dev->param.chunks_per_block + 1, NULL, + &spare1, &dummy, 1); + +- if (yaffs_CountBits(spare0.blockStatus & spare1.blockStatus) < 7) ++ if (yaffs_count_bits(spare0.block_status & spare1.block_status) < 7) + *state = YAFFS_BLOCK_STATE_DEAD; + else if (memcmp(&spareFF, &spare0, sizeof(spareFF)) == 0) + *state = YAFFS_BLOCK_STATE_EMPTY; +--- a/fs/yaffs2/yaffs_tagscompat.h ++++ b/fs/yaffs2/yaffs_tagscompat.h +@@ -1,7 +1,7 @@ + /* + * YAFFS: Yet another Flash File System . A NAND-flash specific file system. + * +- * Copyright (C) 2002-2007 Aleph One Ltd. ++ * Copyright (C) 2002-2010 Aleph One Ltd. + * for Toby Churchill Ltd and Brightstar Engineering + * + * Created by Charles Manning +@@ -17,23 +17,23 @@ + #define __YAFFS_TAGSCOMPAT_H__ + + #include "yaffs_guts.h" +-int yaffs_TagsCompatabilityWriteChunkWithTagsToNAND(yaffs_Device *dev, +- int chunkInNAND, ++int yaffs_tags_compat_wr(yaffs_dev_t *dev, ++ int nand_chunk, + const __u8 *data, +- const yaffs_ExtendedTags *tags); +-int yaffs_TagsCompatabilityReadChunkWithTagsFromNAND(yaffs_Device *dev, +- int chunkInNAND, ++ const yaffs_ext_tags *tags); ++int yaffs_tags_compat_rd(yaffs_dev_t *dev, ++ int nand_chunk, + __u8 *data, +- yaffs_ExtendedTags *tags); +-int yaffs_TagsCompatabilityMarkNANDBlockBad(struct yaffs_DeviceStruct *dev, +- int blockNo); +-int yaffs_TagsCompatabilityQueryNANDBlock(struct yaffs_DeviceStruct *dev, +- int blockNo, +- yaffs_BlockState *state, +- __u32 *sequenceNumber); ++ yaffs_ext_tags *tags); ++int yaffs_tags_compat_mark_bad(struct yaffs_dev_s *dev, ++ int block_no); ++int yaffs_tags_compat_query_block(struct yaffs_dev_s *dev, ++ int block_no, ++ yaffs_block_state_t *state, ++ __u32 *seq_number); + +-void yaffs_CalcTagsECC(yaffs_Tags *tags); +-int yaffs_CheckECCOnTags(yaffs_Tags *tags); +-int yaffs_CountBits(__u8 byte); ++void yaffs_calc_tags_ecc(yaffs_tags_t *tags); ++int yaffs_check_tags_ecc(yaffs_tags_t *tags); ++int yaffs_count_bits(__u8 byte); + + #endif +--- a/fs/yaffs2/yaffs_tagsvalidity.c ++++ b/fs/yaffs2/yaffs_tagsvalidity.c +@@ -1,7 +1,7 @@ + /* + * YAFFS: Yet Another Flash File System. A NAND-flash specific file system. + * +- * Copyright (C) 2002-2007 Aleph One Ltd. ++ * Copyright (C) 2002-2010 Aleph One Ltd. + * for Toby Churchill Ltd and Brightstar Engineering + * + * Created by Charles Manning +@@ -13,16 +13,16 @@ + + #include "yaffs_tagsvalidity.h" + +-void yaffs_InitialiseTags(yaffs_ExtendedTags *tags) ++void yaffs_init_tags(yaffs_ext_tags *tags) + { +- memset(tags, 0, sizeof(yaffs_ExtendedTags)); +- tags->validMarker0 = 0xAAAAAAAA; +- tags->validMarker1 = 0x55555555; ++ memset(tags, 0, sizeof(yaffs_ext_tags)); ++ tags->validity1 = 0xAAAAAAAA; ++ tags->validty1 = 0x55555555; + } + +-int yaffs_ValidateTags(yaffs_ExtendedTags *tags) ++int yaffs_validate_tags(yaffs_ext_tags *tags) + { +- return (tags->validMarker0 == 0xAAAAAAAA && +- tags->validMarker1 == 0x55555555); ++ return (tags->validity1 == 0xAAAAAAAA && ++ tags->validty1 == 0x55555555); + + } +--- a/fs/yaffs2/yaffs_tagsvalidity.h ++++ b/fs/yaffs2/yaffs_tagsvalidity.h +@@ -1,7 +1,7 @@ + /* + * YAFFS: Yet another Flash File System . A NAND-flash specific file system. + * +- * Copyright (C) 2002-2007 Aleph One Ltd. ++ * Copyright (C) 2002-2010 Aleph One Ltd. + * for Toby Churchill Ltd and Brightstar Engineering + * + * Created by Charles Manning +@@ -19,6 +19,6 @@ + + #include "yaffs_guts.h" + +-void yaffs_InitialiseTags(yaffs_ExtendedTags *tags); +-int yaffs_ValidateTags(yaffs_ExtendedTags *tags); ++void yaffs_init_tags(yaffs_ext_tags *tags); ++int yaffs_validate_tags(yaffs_ext_tags *tags); + #endif +--- /dev/null ++++ b/fs/yaffs2/yaffs_trace.h +@@ -0,0 +1,60 @@ ++/* ++ * YAFFS: Yet another Flash File System . A NAND-flash specific file system. ++ * ++ * Copyright (C) 2002-2010 Aleph One Ltd. ++ * for Toby Churchill Ltd and Brightstar Engineering ++ * ++ * Created by Charles Manning ++ * ++ * This program is free software; you can redistribute it and/or modify ++ * it under the terms of the GNU Lesser General Public License version 2.1 as ++ * published by the Free Software Foundation. ++ * ++ * Note: Only YAFFS headers are LGPL, YAFFS C code is covered by GPL. ++ */ ++ ++ ++#ifndef __YTRACE_H__ ++#define __YTRACE_H__ ++ ++extern unsigned int yaffs_trace_mask; ++extern unsigned int yaffs_wr_attempts; ++ ++/* ++ * Tracing flags. ++ * The flags masked in YAFFS_TRACE_ALWAYS are always traced. ++ */ ++ ++#define YAFFS_TRACE_OS 0x00000002 ++#define YAFFS_TRACE_ALLOCATE 0x00000004 ++#define YAFFS_TRACE_SCAN 0x00000008 ++#define YAFFS_TRACE_BAD_BLOCKS 0x00000010 ++#define YAFFS_TRACE_ERASE 0x00000020 ++#define YAFFS_TRACE_GC 0x00000040 ++#define YAFFS_TRACE_WRITE 0x00000080 ++#define YAFFS_TRACE_TRACING 0x00000100 ++#define YAFFS_TRACE_DELETION 0x00000200 ++#define YAFFS_TRACE_BUFFERS 0x00000400 ++#define YAFFS_TRACE_NANDACCESS 0x00000800 ++#define YAFFS_TRACE_GC_DETAIL 0x00001000 ++#define YAFFS_TRACE_SCAN_DEBUG 0x00002000 ++#define YAFFS_TRACE_MTD 0x00004000 ++#define YAFFS_TRACE_CHECKPOINT 0x00008000 ++ ++#define YAFFS_TRACE_VERIFY 0x00010000 ++#define YAFFS_TRACE_VERIFY_NAND 0x00020000 ++#define YAFFS_TRACE_VERIFY_FULL 0x00040000 ++#define YAFFS_TRACE_VERIFY_ALL 0x000F0000 ++ ++#define YAFFS_TRACE_SYNC 0x00100000 ++#define YAFFS_TRACE_BACKGROUND 0x00200000 ++#define YAFFS_TRACE_LOCK 0x00400000 ++ ++#define YAFFS_TRACE_ERROR 0x40000000 ++#define YAFFS_TRACE_BUG 0x80000000 ++#define YAFFS_TRACE_ALWAYS 0xF0000000 ++ ++ ++#define T(mask, p) do { if ((mask) & (yaffs_trace_mask | YAFFS_TRACE_ALWAYS)) TOUT(p); } while (0) ++ ++#endif +--- /dev/null ++++ b/fs/yaffs2/yaffs_verify.c +@@ -0,0 +1,626 @@ ++/* ++ * YAFFS: Yet Another Flash File System. A NAND-flash specific file system. ++ * ++ * Copyright (C) 2002-2010 Aleph One Ltd. ++ * for Toby Churchill Ltd and Brightstar Engineering ++ * ++ * Created by Charles Manning ++ * ++ * This program is free software; you can redistribute it and/or modify ++ * it under the terms of the GNU General Public License version 2 as ++ * published by the Free Software Foundation. ++ */ ++ ++ ++#include "yaffs_verify.h" ++#include "yaffs_trace.h" ++#include "yaffs_bitmap.h" ++#include "yaffs_getblockinfo.h" ++#include "yaffs_nand.h" ++ ++int yaffs_skip_verification(yaffs_dev_t *dev) ++{ ++ dev=dev; ++ return !(yaffs_trace_mask & (YAFFS_TRACE_VERIFY | YAFFS_TRACE_VERIFY_FULL)); ++} ++ ++static int yaffs_skip_full_verification(yaffs_dev_t *dev) ++{ ++ dev=dev; ++ return !(yaffs_trace_mask & (YAFFS_TRACE_VERIFY_FULL)); ++} ++ ++static int yaffs_skip_nand_verification(yaffs_dev_t *dev) ++{ ++ dev=dev; ++ return !(yaffs_trace_mask & (YAFFS_TRACE_VERIFY_NAND)); ++} ++ ++ ++static const char *block_stateName[] = { ++"Unknown", ++"Needs scanning", ++"Scanning", ++"Empty", ++"Allocating", ++"Full", ++"Dirty", ++"Checkpoint", ++"Collecting", ++"Dead" ++}; ++ ++ ++void yaffs_verify_blk(yaffs_dev_t *dev, yaffs_block_info_t *bi, int n) ++{ ++ int actuallyUsed; ++ int inUse; ++ ++ if (yaffs_skip_verification(dev)) ++ return; ++ ++ /* Report illegal runtime states */ ++ if (bi->block_state >= YAFFS_NUMBER_OF_BLOCK_STATES) ++ T(YAFFS_TRACE_VERIFY, (TSTR("Block %d has undefined state %d"TENDSTR), n, bi->block_state)); ++ ++ switch (bi->block_state) { ++ case YAFFS_BLOCK_STATE_UNKNOWN: ++ case YAFFS_BLOCK_STATE_SCANNING: ++ case YAFFS_BLOCK_STATE_NEEDS_SCANNING: ++ T(YAFFS_TRACE_VERIFY, (TSTR("Block %d has bad run-state %s"TENDSTR), ++ n, block_stateName[bi->block_state])); ++ } ++ ++ /* Check pages in use and soft deletions are legal */ ++ ++ actuallyUsed = bi->pages_in_use - bi->soft_del_pages; ++ ++ if (bi->pages_in_use < 0 || bi->pages_in_use > dev->param.chunks_per_block || ++ bi->soft_del_pages < 0 || bi->soft_del_pages > dev->param.chunks_per_block || ++ actuallyUsed < 0 || actuallyUsed > dev->param.chunks_per_block) ++ T(YAFFS_TRACE_VERIFY, (TSTR("Block %d has illegal values pages_in_used %d soft_del_pages %d"TENDSTR), ++ n, bi->pages_in_use, bi->soft_del_pages)); ++ ++ ++ /* Check chunk bitmap legal */ ++ inUse = yaffs_count_chunk_bits(dev, n); ++ if (inUse != bi->pages_in_use) ++ T(YAFFS_TRACE_VERIFY, (TSTR("Block %d has inconsistent values pages_in_use %d counted chunk bits %d"TENDSTR), ++ n, bi->pages_in_use, inUse)); ++ ++} ++ ++ ++ ++void yaffs_verify_collected_blk(yaffs_dev_t *dev, yaffs_block_info_t *bi, int n) ++{ ++ yaffs_verify_blk(dev, bi, n); ++ ++ /* After collection the block should be in the erased state */ ++ ++ if (bi->block_state != YAFFS_BLOCK_STATE_COLLECTING && ++ bi->block_state != YAFFS_BLOCK_STATE_EMPTY) { ++ T(YAFFS_TRACE_ERROR, (TSTR("Block %d is in state %d after gc, should be erased"TENDSTR), ++ n, bi->block_state)); ++ } ++} ++ ++void yaffs_verify_blocks(yaffs_dev_t *dev) ++{ ++ int i; ++ int nBlocksPerState[YAFFS_NUMBER_OF_BLOCK_STATES]; ++ int nIllegalBlockStates = 0; ++ ++ if (yaffs_skip_verification(dev)) ++ return; ++ ++ memset(nBlocksPerState, 0, sizeof(nBlocksPerState)); ++ ++ for (i = dev->internal_start_block; i <= dev->internal_end_block; i++) { ++ yaffs_block_info_t *bi = yaffs_get_block_info(dev, i); ++ yaffs_verify_blk(dev, bi, i); ++ ++ if (bi->block_state < YAFFS_NUMBER_OF_BLOCK_STATES) ++ nBlocksPerState[bi->block_state]++; ++ else ++ nIllegalBlockStates++; ++ } ++ ++ T(YAFFS_TRACE_VERIFY, (TSTR(""TENDSTR))); ++ T(YAFFS_TRACE_VERIFY, (TSTR("Block summary"TENDSTR))); ++ ++ T(YAFFS_TRACE_VERIFY, (TSTR("%d blocks have illegal states"TENDSTR), nIllegalBlockStates)); ++ if (nBlocksPerState[YAFFS_BLOCK_STATE_ALLOCATING] > 1) ++ T(YAFFS_TRACE_VERIFY, (TSTR("Too many allocating blocks"TENDSTR))); ++ ++ for (i = 0; i < YAFFS_NUMBER_OF_BLOCK_STATES; i++) ++ T(YAFFS_TRACE_VERIFY, ++ (TSTR("%s %d blocks"TENDSTR), ++ block_stateName[i], nBlocksPerState[i])); ++ ++ if (dev->blocks_in_checkpt != nBlocksPerState[YAFFS_BLOCK_STATE_CHECKPOINT]) ++ T(YAFFS_TRACE_VERIFY, ++ (TSTR("Checkpoint block count wrong dev %d count %d"TENDSTR), ++ dev->blocks_in_checkpt, nBlocksPerState[YAFFS_BLOCK_STATE_CHECKPOINT])); ++ ++ if (dev->n_erased_blocks != nBlocksPerState[YAFFS_BLOCK_STATE_EMPTY]) ++ T(YAFFS_TRACE_VERIFY, ++ (TSTR("Erased block count wrong dev %d count %d"TENDSTR), ++ dev->n_erased_blocks, nBlocksPerState[YAFFS_BLOCK_STATE_EMPTY])); ++ ++ if (nBlocksPerState[YAFFS_BLOCK_STATE_COLLECTING] > 1) ++ T(YAFFS_TRACE_VERIFY, ++ (TSTR("Too many collecting blocks %d (max is 1)"TENDSTR), ++ nBlocksPerState[YAFFS_BLOCK_STATE_COLLECTING])); ++ ++ T(YAFFS_TRACE_VERIFY, (TSTR(""TENDSTR))); ++ ++} ++ ++/* ++ * Verify the object header. oh must be valid, but obj and tags may be NULL in which ++ * case those tests will not be performed. ++ */ ++void yaffs_verify_oh(yaffs_obj_t *obj, yaffs_obj_header *oh, yaffs_ext_tags *tags, int parentCheck) ++{ ++ if (obj && yaffs_skip_verification(obj->my_dev)) ++ return; ++ ++ if (!(tags && obj && oh)) { ++ T(YAFFS_TRACE_VERIFY, ++ (TSTR("Verifying object header tags %p obj %p oh %p"TENDSTR), ++ tags, obj, oh)); ++ return; ++ } ++ ++ if (oh->type <= YAFFS_OBJECT_TYPE_UNKNOWN || ++ oh->type > YAFFS_OBJECT_TYPE_MAX) ++ T(YAFFS_TRACE_VERIFY, ++ (TSTR("Obj %d header type is illegal value 0x%x"TENDSTR), ++ tags->obj_id, oh->type)); ++ ++ if (tags->obj_id != obj->obj_id) ++ T(YAFFS_TRACE_VERIFY, ++ (TSTR("Obj %d header mismatch obj_id %d"TENDSTR), ++ tags->obj_id, obj->obj_id)); ++ ++ ++ /* ++ * Check that the object's parent ids match if parentCheck requested. ++ * ++ * Tests do not apply to the root object. ++ */ ++ ++ if (parentCheck && tags->obj_id > 1 && !obj->parent) ++ T(YAFFS_TRACE_VERIFY, ++ (TSTR("Obj %d header mismatch parent_id %d obj->parent is NULL"TENDSTR), ++ tags->obj_id, oh->parent_obj_id)); ++ ++ if (parentCheck && obj->parent && ++ oh->parent_obj_id != obj->parent->obj_id && ++ (oh->parent_obj_id != YAFFS_OBJECTID_UNLINKED || ++ obj->parent->obj_id != YAFFS_OBJECTID_DELETED)) ++ T(YAFFS_TRACE_VERIFY, ++ (TSTR("Obj %d header mismatch parent_id %d parent_obj_id %d"TENDSTR), ++ tags->obj_id, oh->parent_obj_id, obj->parent->obj_id)); ++ ++ if (tags->obj_id > 1 && oh->name[0] == 0) /* Null name */ ++ T(YAFFS_TRACE_VERIFY, ++ (TSTR("Obj %d header name is NULL"TENDSTR), ++ obj->obj_id)); ++ ++ if (tags->obj_id > 1 && ((__u8)(oh->name[0])) == 0xff) /* Trashed name */ ++ T(YAFFS_TRACE_VERIFY, ++ (TSTR("Obj %d header name is 0xFF"TENDSTR), ++ obj->obj_id)); ++} ++ ++ ++#if 0 ++/* Not being used, but don't want to throw away yet */ ++int yaffs_verify_tnode_worker(yaffs_obj_t *obj, yaffs_tnode_t *tn, ++ __u32 level, int chunk_offset) ++{ ++ int i; ++ yaffs_dev_t *dev = obj->my_dev; ++ int ok = 1; ++ ++ if (tn) { ++ if (level > 0) { ++ ++ for (i = 0; i < YAFFS_NTNODES_INTERNAL && ok; i++) { ++ if (tn->internal[i]) { ++ ok = yaffs_verify_tnode_worker(obj, ++ tn->internal[i], ++ level - 1, ++ (chunk_offset<obj_id; ++ ++ chunk_offset <<= YAFFS_TNODES_LEVEL0_BITS; ++ ++ for (i = 0; i < YAFFS_NTNODES_LEVEL0; i++) { ++ __u32 theChunk = yaffs_get_group_base(dev, tn, i); ++ ++ if (theChunk > 0) { ++ /* T(~0,(TSTR("verifying (%d:%d) %d"TENDSTR),tags.obj_id,tags.chunk_id,theChunk)); */ ++ yaffs_rd_chunk_tags_nand(dev, theChunk, NULL, &tags); ++ if (tags.obj_id != obj_id || tags.chunk_id != chunk_offset) { ++ T(~0, (TSTR("Object %d chunk_id %d NAND mismatch chunk %d tags (%d:%d)"TENDSTR), ++ obj_id, chunk_offset, theChunk, ++ tags.obj_id, tags.chunk_id)); ++ } ++ } ++ chunk_offset++; ++ } ++ } ++ } ++ ++ return ok; ++ ++} ++ ++#endif ++ ++void yaffs_verify_file(yaffs_obj_t *obj) ++{ ++ int requiredTallness; ++ int actualTallness; ++ __u32 lastChunk; ++ __u32 x; ++ __u32 i; ++ yaffs_dev_t *dev; ++ yaffs_ext_tags tags; ++ yaffs_tnode_t *tn; ++ __u32 obj_id; ++ ++ if (!obj) ++ return; ++ ++ if (yaffs_skip_verification(obj->my_dev)) ++ return; ++ ++ dev = obj->my_dev; ++ obj_id = obj->obj_id; ++ ++ /* Check file size is consistent with tnode depth */ ++ lastChunk = obj->variant.file_variant.file_size / dev->data_bytes_per_chunk + 1; ++ x = lastChunk >> YAFFS_TNODES_LEVEL0_BITS; ++ requiredTallness = 0; ++ while (x > 0) { ++ x >>= YAFFS_TNODES_INTERNAL_BITS; ++ requiredTallness++; ++ } ++ ++ actualTallness = obj->variant.file_variant.top_level; ++ ++ /* Check that the chunks in the tnode tree are all correct. ++ * We do this by scanning through the tnode tree and ++ * checking the tags for every chunk match. ++ */ ++ ++ if (yaffs_skip_nand_verification(dev)) ++ return; ++ ++ for (i = 1; i <= lastChunk; i++) { ++ tn = yaffs_find_tnode_0(dev, &obj->variant.file_variant, i); ++ ++ if (tn) { ++ __u32 theChunk = yaffs_get_group_base(dev, tn, i); ++ if (theChunk > 0) { ++ /* T(~0,(TSTR("verifying (%d:%d) %d"TENDSTR),obj_id,i,theChunk)); */ ++ yaffs_rd_chunk_tags_nand(dev, theChunk, NULL, &tags); ++ if (tags.obj_id != obj_id || tags.chunk_id != i) { ++ T(~0, (TSTR("Object %d chunk_id %d NAND mismatch chunk %d tags (%d:%d)"TENDSTR), ++ obj_id, i, theChunk, ++ tags.obj_id, tags.chunk_id)); ++ } ++ } ++ } ++ } ++} ++ ++ ++void yaffs_verify_link(yaffs_obj_t *obj) ++{ ++ if (obj && yaffs_skip_verification(obj->my_dev)) ++ return; ++ ++ /* Verify sane equivalent object */ ++} ++ ++void yaffs_verify_symlink(yaffs_obj_t *obj) ++{ ++ if (obj && yaffs_skip_verification(obj->my_dev)) ++ return; ++ ++ /* Verify symlink string */ ++} ++ ++void yaffs_verify_special(yaffs_obj_t *obj) ++{ ++ if (obj && yaffs_skip_verification(obj->my_dev)) ++ return; ++} ++ ++void yaffs_verify_obj(yaffs_obj_t *obj) ++{ ++ yaffs_dev_t *dev; ++ ++ __u32 chunkMin; ++ __u32 chunkMax; ++ ++ __u32 chunk_idOk; ++ __u32 chunkInRange; ++ __u32 chunkShouldNotBeDeleted; ++ __u32 chunkValid; ++ ++ if (!obj) ++ return; ++ ++ if (obj->being_created) ++ return; ++ ++ dev = obj->my_dev; ++ ++ if (yaffs_skip_verification(dev)) ++ return; ++ ++ /* Check sane object header chunk */ ++ ++ chunkMin = dev->internal_start_block * dev->param.chunks_per_block; ++ chunkMax = (dev->internal_end_block+1) * dev->param.chunks_per_block - 1; ++ ++ chunkInRange = (((unsigned)(obj->hdr_chunk)) >= chunkMin && ((unsigned)(obj->hdr_chunk)) <= chunkMax); ++ chunk_idOk = chunkInRange || (obj->hdr_chunk == 0); ++ chunkValid = chunkInRange && ++ yaffs_check_chunk_bit(dev, ++ obj->hdr_chunk / dev->param.chunks_per_block, ++ obj->hdr_chunk % dev->param.chunks_per_block); ++ chunkShouldNotBeDeleted = chunkInRange && !chunkValid; ++ ++ if (!obj->fake && ++ (!chunk_idOk || chunkShouldNotBeDeleted)) { ++ T(YAFFS_TRACE_VERIFY, ++ (TSTR("Obj %d has chunk_id %d %s %s"TENDSTR), ++ obj->obj_id, obj->hdr_chunk, ++ chunk_idOk ? "" : ",out of range", ++ chunkShouldNotBeDeleted ? ",marked as deleted" : "")); ++ } ++ ++ if (chunkValid && !yaffs_skip_nand_verification(dev)) { ++ yaffs_ext_tags tags; ++ yaffs_obj_header *oh; ++ __u8 *buffer = yaffs_get_temp_buffer(dev, __LINE__); ++ ++ oh = (yaffs_obj_header *)buffer; ++ ++ yaffs_rd_chunk_tags_nand(dev, obj->hdr_chunk, buffer, ++ &tags); ++ ++ yaffs_verify_oh(obj, oh, &tags, 1); ++ ++ yaffs_release_temp_buffer(dev, buffer, __LINE__); ++ } ++ ++ /* Verify it has a parent */ ++ if (obj && !obj->fake && ++ (!obj->parent || obj->parent->my_dev != dev)) { ++ T(YAFFS_TRACE_VERIFY, ++ (TSTR("Obj %d has parent pointer %p which does not look like an object"TENDSTR), ++ obj->obj_id, obj->parent)); ++ } ++ ++ /* Verify parent is a directory */ ++ if (obj->parent && obj->parent->variant_type != YAFFS_OBJECT_TYPE_DIRECTORY) { ++ T(YAFFS_TRACE_VERIFY, ++ (TSTR("Obj %d's parent is not a directory (type %d)"TENDSTR), ++ obj->obj_id, obj->parent->variant_type)); ++ } ++ ++ switch (obj->variant_type) { ++ case YAFFS_OBJECT_TYPE_FILE: ++ yaffs_verify_file(obj); ++ break; ++ case YAFFS_OBJECT_TYPE_SYMLINK: ++ yaffs_verify_symlink(obj); ++ break; ++ case YAFFS_OBJECT_TYPE_DIRECTORY: ++ yaffs_verify_dir(obj); ++ break; ++ case YAFFS_OBJECT_TYPE_HARDLINK: ++ yaffs_verify_link(obj); ++ break; ++ case YAFFS_OBJECT_TYPE_SPECIAL: ++ yaffs_verify_special(obj); ++ break; ++ case YAFFS_OBJECT_TYPE_UNKNOWN: ++ default: ++ T(YAFFS_TRACE_VERIFY, ++ (TSTR("Obj %d has illegaltype %d"TENDSTR), ++ obj->obj_id, obj->variant_type)); ++ break; ++ } ++} ++ ++void yaffs_verify_objects(yaffs_dev_t *dev) ++{ ++ yaffs_obj_t *obj; ++ int i; ++ struct ylist_head *lh; ++ ++ if (yaffs_skip_verification(dev)) ++ return; ++ ++ /* Iterate through the objects in each hash entry */ ++ ++ for (i = 0; i < YAFFS_NOBJECT_BUCKETS; i++) { ++ ylist_for_each(lh, &dev->obj_bucket[i].list) { ++ if (lh) { ++ obj = ylist_entry(lh, yaffs_obj_t, hash_link); ++ yaffs_verify_obj(obj); ++ } ++ } ++ } ++} ++ ++ ++void yaffs_verify_obj_in_dir(yaffs_obj_t *obj) ++{ ++ struct ylist_head *lh; ++ yaffs_obj_t *listObj; ++ ++ int count = 0; ++ ++ if (!obj) { ++ T(YAFFS_TRACE_ALWAYS, (TSTR("No object to verify" TENDSTR))); ++ YBUG(); ++ return; ++ } ++ ++ if (yaffs_skip_verification(obj->my_dev)) ++ return; ++ ++ if (!obj->parent) { ++ T(YAFFS_TRACE_ALWAYS, (TSTR("Object does not have parent" TENDSTR))); ++ YBUG(); ++ return; ++ } ++ ++ if (obj->parent->variant_type != YAFFS_OBJECT_TYPE_DIRECTORY) { ++ T(YAFFS_TRACE_ALWAYS, (TSTR("Parent is not directory" TENDSTR))); ++ YBUG(); ++ } ++ ++ /* Iterate through the objects in each hash entry */ ++ ++ ylist_for_each(lh, &obj->parent->variant.dir_variant.children) { ++ if (lh) { ++ listObj = ylist_entry(lh, yaffs_obj_t, siblings); ++ yaffs_verify_obj(listObj); ++ if (obj == listObj) ++ count++; ++ } ++ } ++ ++ if (count != 1) { ++ T(YAFFS_TRACE_ALWAYS, (TSTR("Object in directory %d times" TENDSTR), count)); ++ YBUG(); ++ } ++} ++ ++void yaffs_verify_dir(yaffs_obj_t *directory) ++{ ++ struct ylist_head *lh; ++ yaffs_obj_t *listObj; ++ ++ if (!directory) { ++ YBUG(); ++ return; ++ } ++ ++ if (yaffs_skip_full_verification(directory->my_dev)) ++ return; ++ ++ if (directory->variant_type != YAFFS_OBJECT_TYPE_DIRECTORY) { ++ T(YAFFS_TRACE_ALWAYS, (TSTR("Directory has wrong type: %d" TENDSTR), directory->variant_type)); ++ YBUG(); ++ } ++ ++ /* Iterate through the objects in each hash entry */ ++ ++ ylist_for_each(lh, &directory->variant.dir_variant.children) { ++ if (lh) { ++ listObj = ylist_entry(lh, yaffs_obj_t, siblings); ++ if (listObj->parent != directory) { ++ T(YAFFS_TRACE_ALWAYS, (TSTR("Object in directory list has wrong parent %p" TENDSTR), listObj->parent)); ++ YBUG(); ++ } ++ yaffs_verify_obj_in_dir(listObj); ++ } ++ } ++} ++ ++static int yaffs_free_verification_failures; ++ ++void yaffs_verify_free_chunks(yaffs_dev_t *dev) ++{ ++ int counted; ++ int difference; ++ ++ if (yaffs_skip_verification(dev)) ++ return; ++ ++ counted = yaffs_count_free_chunks(dev); ++ ++ difference = dev->n_free_chunks - counted; ++ ++ if (difference) { ++ T(YAFFS_TRACE_ALWAYS, ++ (TSTR("Freechunks verification failure %d %d %d" TENDSTR), ++ dev->n_free_chunks, counted, difference)); ++ yaffs_free_verification_failures++; ++ } ++} ++ ++int yaffs_verify_file_sane(yaffs_obj_t *in) ++{ ++#if 0 ++ int chunk; ++ int n_chunks; ++ int fSize; ++ int failed = 0; ++ int obj_id; ++ yaffs_tnode_t *tn; ++ yaffs_tags_t localTags; ++ yaffs_tags_t *tags = &localTags; ++ int theChunk; ++ int is_deleted; ++ ++ if (in->variant_type != YAFFS_OBJECT_TYPE_FILE) ++ return YAFFS_FAIL; ++ ++ obj_id = in->obj_id; ++ fSize = in->variant.file_variant.file_size; ++ n_chunks = ++ (fSize + in->my_dev->data_bytes_per_chunk - 1) / in->my_dev->data_bytes_per_chunk; ++ ++ for (chunk = 1; chunk <= n_chunks; chunk++) { ++ tn = yaffs_find_tnode_0(in->my_dev, &in->variant.file_variant, ++ chunk); ++ ++ if (tn) { ++ ++ theChunk = yaffs_get_group_base(dev, tn, chunk); ++ ++ if (yaffs_check_chunk_bits ++ (dev, theChunk / dev->param.chunks_per_block, ++ theChunk % dev->param.chunks_per_block)) { ++ ++ yaffs_rd_chunk_tags_nand(in->my_dev, theChunk, ++ tags, ++ &is_deleted); ++ if (yaffs_tags_match ++ (tags, in->obj_id, chunk, is_deleted)) { ++ /* found it; */ ++ ++ } ++ } else { ++ ++ failed = 1; ++ } ++ ++ } else { ++ /* T(("No level 0 found for %d\n", chunk)); */ ++ } ++ } ++ ++ return failed ? YAFFS_FAIL : YAFFS_OK; ++#else ++ in=in; ++ return YAFFS_OK; ++#endif ++} +--- /dev/null ++++ b/fs/yaffs2/yaffs_verify.h +@@ -0,0 +1,39 @@ ++/* ++ * YAFFS: Yet Another Flash File System. A NAND-flash specific file system. ++ * ++ * Copyright (C) 2002-2010 Aleph One Ltd. ++ * for Toby Churchill Ltd and Brightstar Engineering ++ * ++ * Created by Charles Manning ++ * ++ * This program is free software; you can redistribute it and/or modify ++ * it under the terms of the GNU General Public License version 2 as ++ * published by the Free Software Foundation. ++ */ ++ ++#ifndef __YAFFS_VERIFY_H__ ++#define __YAFFS_VERIFY_H__ ++ ++#include "yaffs_guts.h" ++ ++void yaffs_verify_blk(yaffs_dev_t *dev, yaffs_block_info_t *bi, int n); ++void yaffs_verify_collected_blk(yaffs_dev_t *dev, yaffs_block_info_t *bi, int n); ++void yaffs_verify_blocks(yaffs_dev_t *dev); ++ ++void yaffs_verify_oh(yaffs_obj_t *obj, yaffs_obj_header *oh, yaffs_ext_tags *tags, int parentCheck); ++void yaffs_verify_file(yaffs_obj_t *obj); ++void yaffs_verify_link(yaffs_obj_t *obj); ++void yaffs_verify_symlink(yaffs_obj_t *obj); ++void yaffs_verify_special(yaffs_obj_t *obj); ++void yaffs_verify_obj(yaffs_obj_t *obj); ++void yaffs_verify_objects(yaffs_dev_t *dev); ++void yaffs_verify_obj_in_dir(yaffs_obj_t *obj); ++void yaffs_verify_dir(yaffs_obj_t *directory); ++void yaffs_verify_free_chunks(yaffs_dev_t *dev); ++ ++int yaffs_verify_file_sane(yaffs_obj_t *obj); ++ ++int yaffs_skip_verification(yaffs_dev_t *dev); ++ ++#endif ++ +--- /dev/null ++++ b/fs/yaffs2/yaffs_vfs_glue.c +@@ -0,0 +1,3576 @@ ++/* ++ * YAFFS: Yet Another Flash File System. A NAND-flash specific file system. ++ * ++ * Copyright (C) 2002-2010 Aleph One Ltd. ++ * for Toby Churchill Ltd and Brightstar Engineering ++ * ++ * Created by Charles Manning ++ * Acknowledgements: ++ * Luc van OostenRyck for numerous patches. ++ * Nick Bane for numerous patches. ++ * Nick Bane for 2.5/2.6 integration. ++ * Andras Toth for mknod rdev issue. ++ * Michael Fischer for finding the problem with inode inconsistency. ++ * Some code bodily lifted from JFFS ++ * ++ * This program is free software; you can redistribute it and/or modify ++ * it under the terms of the GNU General Public License version 2 as ++ * published by the Free Software Foundation. ++ */ ++ ++/* ++ * ++ * This is the file system front-end to YAFFS that hooks it up to ++ * the VFS. ++ * ++ * Special notes: ++ * >> 2.4: sb->u.generic_sbp points to the yaffs_dev_t associated with ++ * this superblock ++ * >> 2.6: sb->s_fs_info points to the yaffs_dev_t associated with this ++ * superblock ++ * >> inode->u.generic_ip points to the associated yaffs_obj_t. ++ */ ++ ++/* ++ * There are two variants of the VFS glue code. This variant should compile ++ * for any version of Linux. ++ */ ++#include ++ ++#if (LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 10)) ++#define YAFFS_COMPILE_BACKGROUND ++#if (LINUX_VERSION_CODE >= KERNEL_VERSION(2,6, 23)) ++#define YAFFS_COMPILE_FREEZER ++#endif ++#endif ++ ++#if (LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,28)) ++#define YAFFS_COMPILE_EXPORTFS ++#endif ++ ++#if (LINUX_VERSION_CODE > KERNEL_VERSION(2,6,35)) ++#define YAFFS_USE_SETATTR_COPY ++#define YAFFS_USE_TRUNCATE_SETSIZE ++#endif ++#if (LINUX_VERSION_CODE > KERNEL_VERSION(2,6,35)) ++#define YAFFS_HAS_EVICT_INODE ++#endif ++ ++#if (LINUX_VERSION_CODE > KERNEL_VERSION(2,6,13)) ++#define YAFFS_NEW_FOLLOW_LINK 1 ++#else ++#define YAFFS_NEW_FOLLOW_LINK 0 ++#endif ++ ++#if (LINUX_VERSION_CODE < KERNEL_VERSION(2, 6, 19)) ++#include ++#endif ++ ++#include ++#include ++#include ++#include ++#include ++#include ++#include ++#include ++#include ++#include ++#include ++#include ++ ++#if (YAFFS_NEW_FOLLOW_LINK == 1) ++#include ++#endif ++ ++#ifdef YAFFS_COMPILE_EXPORTFS ++#include ++#endif ++ ++#ifdef YAFFS_COMPILE_BACKGROUND ++#include ++#include ++#endif ++#ifdef YAFFS_COMPILE_FREEZER ++#include ++#endif ++ ++#include ++ ++#if (LINUX_VERSION_CODE > KERNEL_VERSION(2, 5, 0)) ++ ++#include ++ ++#define UnlockPage(p) unlock_page(p) ++#define Page_Uptodate(page) test_bit(PG_uptodate, &(page)->flags) ++ ++/* FIXME: use sb->s_id instead ? */ ++#define yaffs_devname(sb, buf) bdevname(sb->s_bdev, buf) ++ ++#else ++ ++#include ++#define BDEVNAME_SIZE 0 ++#define yaffs_devname(sb, buf) kdevname(sb->s_dev) ++ ++#if (LINUX_VERSION_CODE < KERNEL_VERSION(2, 5, 0)) ++/* added NCB 26/5/2006 for 2.4.25-vrs2-tcl1 kernel */ ++#define __user ++#endif ++ ++#endif ++ ++#if (LINUX_VERSION_CODE < KERNEL_VERSION(2, 6, 26)) ++#define YPROC_ROOT (&proc_root) ++#else ++#define YPROC_ROOT NULL ++#endif ++ ++#if (LINUX_VERSION_CODE < KERNEL_VERSION(2,6,26)) ++#define Y_INIT_TIMER(a) init_timer(a) ++#else ++#define Y_INIT_TIMER(a) init_timer_on_stack(a) ++#endif ++ ++#if (LINUX_VERSION_CODE > KERNEL_VERSION(2, 6, 17)) ++#define WRITE_SIZE_STR "writesize" ++#define WRITE_SIZE(mtd) ((mtd)->writesize) ++#else ++#define WRITE_SIZE_STR "oobblock" ++#define WRITE_SIZE(mtd) ((mtd)->oobblock) ++#endif ++ ++#if (LINUX_VERSION_CODE > KERNEL_VERSION(2, 6, 27)) ++#define YAFFS_USE_WRITE_BEGIN_END 1 ++#else ++#define YAFFS_USE_WRITE_BEGIN_END 0 ++#endif ++ ++#if (LINUX_VERSION_CODE > KERNEL_VERSION(2, 6, 28)) ++static uint32_t YCALCBLOCKS(uint64_t partition_size, uint32_t block_size) ++{ ++ uint64_t result = partition_size; ++ do_div(result, block_size); ++ return (uint32_t)result; ++} ++#else ++#define YCALCBLOCKS(s, b) ((s)/(b)) ++#endif ++ ++#include ++#include ++ ++#include "yportenv.h" ++#include "yaffs_trace.h" ++#include "yaffs_guts.h" ++ ++#include "yaffs_linux.h" ++ ++#include "yaffs_mtdif.h" ++#include "yaffs_mtdif1.h" ++#include "yaffs_mtdif2.h" ++ ++unsigned int yaffs_trace_mask = YAFFS_TRACE_BAD_BLOCKS | YAFFS_TRACE_ALWAYS; ++unsigned int yaffs_wr_attempts = YAFFS_WR_ATTEMPTS; ++unsigned int yaffs_auto_checkpoint = 1; ++unsigned int yaffs_gc_control = 1; ++unsigned int yaffs_bg_enable = 1; ++ ++/* Module Parameters */ ++#if (LINUX_VERSION_CODE > KERNEL_VERSION(2, 5, 0)) ++module_param(yaffs_trace_mask, uint, 0644); ++module_param(yaffs_wr_attempts, uint, 0644); ++module_param(yaffs_auto_checkpoint, uint, 0644); ++module_param(yaffs_gc_control, uint, 0644); ++module_param(yaffs_bg_enable, uint, 0644); ++#else ++MODULE_PARM(yaffs_trace_mask, "i"); ++MODULE_PARM(yaffs_wr_attempts, "i"); ++MODULE_PARM(yaffs_auto_checkpoint, "i"); ++MODULE_PARM(yaffs_gc_control, "i"); ++#endif ++ ++#if (LINUX_VERSION_CODE < KERNEL_VERSION(2, 6, 25)) ++/* use iget and read_inode */ ++#define Y_IGET(sb, inum) iget((sb), (inum)) ++static void yaffs_read_inode(struct inode *inode); ++ ++#else ++/* Call local equivalent */ ++#define YAFFS_USE_OWN_IGET ++#define Y_IGET(sb, inum) yaffs_iget((sb), (inum)) ++ ++static struct inode *yaffs_iget(struct super_block *sb, unsigned long ino); ++#endif ++ ++#if (LINUX_VERSION_CODE > KERNEL_VERSION(2, 6, 18)) ++#define yaffs_InodeToObjectLV(iptr) ((iptr)->i_private) ++#else ++#define yaffs_InodeToObjectLV(iptr) ((iptr)->u.generic_ip) ++#endif ++ ++#define yaffs_InodeToObject(iptr) ((yaffs_obj_t *)(yaffs_InodeToObjectLV(iptr))) ++#define yaffs_dentry_to_obj(dptr) yaffs_InodeToObject((dptr)->d_inode) ++ ++#if (LINUX_VERSION_CODE > KERNEL_VERSION(2, 5, 0)) ++#define yaffs_SuperToDevice(sb) ((yaffs_dev_t *)sb->s_fs_info) ++#else ++#define yaffs_SuperToDevice(sb) ((yaffs_dev_t *)sb->u.generic_sbp) ++#endif ++ ++ ++#define update_dir_time(dir) do {\ ++ (dir)->i_ctime = (dir)->i_mtime = CURRENT_TIME; \ ++ } while(0) ++ ++static void yaffs_put_super(struct super_block *sb); ++ ++static ssize_t yaffs_file_write(struct file *f, const char *buf, size_t n, ++ loff_t *pos); ++static ssize_t yaffs_hold_space(struct file *f); ++static void yaffs_release_space(struct file *f); ++ ++#if (LINUX_VERSION_CODE > KERNEL_VERSION(2, 6, 17)) ++static int yaffs_file_flush(struct file *file, fl_owner_t id); ++#else ++static int yaffs_file_flush(struct file *file); ++#endif ++ ++#if (LINUX_VERSION_CODE > KERNEL_VERSION(2, 6, 34)) ++static int yaffs_sync_object(struct file *file, int datasync); ++#else ++static int yaffs_sync_object(struct file *file, struct dentry *dentry, ++ int datasync); ++#endif ++ ++static int yaffs_readdir(struct file *f, void *dirent, filldir_t filldir); ++ ++#if (LINUX_VERSION_CODE > KERNEL_VERSION(2, 5, 0)) ++static int yaffs_create(struct inode *dir, struct dentry *dentry, int mode, ++ struct nameidata *n); ++static struct dentry *yaffs_lookup(struct inode *dir, struct dentry *dentry, ++ struct nameidata *n); ++#else ++static int yaffs_create(struct inode *dir, struct dentry *dentry, int mode); ++static struct dentry *yaffs_lookup(struct inode *dir, struct dentry *dentry); ++#endif ++static int yaffs_link(struct dentry *old_dentry, struct inode *dir, ++ struct dentry *dentry); ++static int yaffs_unlink(struct inode *dir, struct dentry *dentry); ++static int yaffs_symlink(struct inode *dir, struct dentry *dentry, ++ const char *symname); ++static int yaffs_mkdir(struct inode *dir, struct dentry *dentry, int mode); ++ ++#if (LINUX_VERSION_CODE > KERNEL_VERSION(2, 5, 0)) ++static int yaffs_mknod(struct inode *dir, struct dentry *dentry, int mode, ++ dev_t dev); ++#else ++static int yaffs_mknod(struct inode *dir, struct dentry *dentry, int mode, ++ int dev); ++#endif ++static int yaffs_rename(struct inode *old_dir, struct dentry *old_dentry, ++ struct inode *new_dir, struct dentry *new_dentry); ++static int yaffs_setattr(struct dentry *dentry, struct iattr *attr); ++ ++#if (LINUX_VERSION_CODE > KERNEL_VERSION(2, 6, 17)) ++static int yaffs_sync_fs(struct super_block *sb, int wait); ++static void yaffs_write_super(struct super_block *sb); ++#else ++static int yaffs_sync_fs(struct super_block *sb); ++static int yaffs_write_super(struct super_block *sb); ++#endif ++ ++#if (LINUX_VERSION_CODE > KERNEL_VERSION(2, 6, 17)) ++static int yaffs_statfs(struct dentry *dentry, struct kstatfs *buf); ++#elif (LINUX_VERSION_CODE > KERNEL_VERSION(2, 5, 0)) ++static int yaffs_statfs(struct super_block *sb, struct kstatfs *buf); ++#else ++static int yaffs_statfs(struct super_block *sb, struct statfs *buf); ++#endif ++ ++#ifdef YAFFS_HAS_PUT_INODE ++static void yaffs_put_inode(struct inode *inode); ++#endif ++ ++#ifdef YAFFS_HAS_EVICT_INODE ++static void yaffs_evict_inode(struct inode *); ++#else ++static void yaffs_delete_inode(struct inode *); ++static void yaffs_clear_inode(struct inode *); ++#endif ++ ++static int yaffs_readpage(struct file *file, struct page *page); ++#if (LINUX_VERSION_CODE > KERNEL_VERSION(2, 5, 0)) ++static int yaffs_writepage(struct page *page, struct writeback_control *wbc); ++#else ++static int yaffs_writepage(struct page *page); ++#endif ++ ++#ifdef CONFIG_YAFFS_XATTR ++int yaffs_setxattr(struct dentry *dentry, const char *name, ++ const void *value, size_t size, int flags); ++ssize_t yaffs_getxattr(struct dentry *dentry, const char *name, void *buff, ++ size_t size); ++int yaffs_removexattr(struct dentry *dentry, const char *name); ++ssize_t yaffs_listxattr(struct dentry *dentry, char *buff, size_t size); ++#endif ++ ++ ++#if (YAFFS_USE_WRITE_BEGIN_END != 0) ++static int yaffs_write_begin(struct file *filp, struct address_space *mapping, ++ loff_t pos, unsigned len, unsigned flags, ++ struct page **pagep, void **fsdata); ++static int yaffs_write_end(struct file *filp, struct address_space *mapping, ++ loff_t pos, unsigned len, unsigned copied, ++ struct page *pg, void *fsdadata); ++#else ++static int yaffs_prepare_write(struct file *f, struct page *pg, ++ unsigned offset, unsigned to); ++static int yaffs_commit_write(struct file *f, struct page *pg, unsigned offset, ++ unsigned to); ++ ++#endif ++ ++static int yaffs_readlink(struct dentry *dentry, char __user *buffer, ++ int buflen); ++#if (YAFFS_NEW_FOLLOW_LINK == 1) ++void yaffs_put_link(struct dentry *dentry, struct nameidata *nd, void *alias); ++static void *yaffs_follow_link(struct dentry *dentry, struct nameidata *nd); ++#else ++static int yaffs_follow_link(struct dentry *dentry, struct nameidata *nd); ++#endif ++ ++static void yaffs_touch_super(yaffs_dev_t *dev); ++ ++static loff_t yaffs_dir_llseek(struct file *file, loff_t offset, int origin); ++ ++static int yaffs_vfs_setattr(struct inode *, struct iattr *); ++ ++ ++static struct address_space_operations yaffs_file_address_operations = { ++ .readpage = yaffs_readpage, ++ .writepage = yaffs_writepage, ++#if (YAFFS_USE_WRITE_BEGIN_END > 0) ++ .write_begin = yaffs_write_begin, ++ .write_end = yaffs_write_end, ++#else ++ .prepare_write = yaffs_prepare_write, ++ .commit_write = yaffs_commit_write, ++#endif ++}; ++ ++ ++#if (LINUX_VERSION_CODE > KERNEL_VERSION(2, 6, 22)) ++static const struct file_operations yaffs_file_operations = { ++ .read = do_sync_read, ++ .write = do_sync_write, ++ .aio_read = generic_file_aio_read, ++ .aio_write = generic_file_aio_write, ++ .mmap = generic_file_mmap, ++ .flush = yaffs_file_flush, ++ .fsync = yaffs_sync_object, ++ .splice_read = generic_file_splice_read, ++ .splice_write = generic_file_splice_write, ++ .llseek = generic_file_llseek, ++}; ++ ++#elif (LINUX_VERSION_CODE > KERNEL_VERSION(2, 6, 18)) ++ ++static const struct file_operations yaffs_file_operations = { ++ .read = do_sync_read, ++ .write = do_sync_write, ++ .aio_read = generic_file_aio_read, ++ .aio_write = generic_file_aio_write, ++ .mmap = generic_file_mmap, ++ .flush = yaffs_file_flush, ++ .fsync = yaffs_sync_object, ++ .sendfile = generic_file_sendfile, ++}; ++ ++#else ++ ++static const struct file_operations yaffs_file_operations = { ++ .read = generic_file_read, ++ .write = generic_file_write, ++ .mmap = generic_file_mmap, ++ .flush = yaffs_file_flush, ++ .fsync = yaffs_sync_object, ++#if (LINUX_VERSION_CODE > KERNEL_VERSION(2, 5, 0)) ++ .sendfile = generic_file_sendfile, ++#endif ++}; ++#endif ++ ++#if (LINUX_VERSION_CODE < KERNEL_VERSION(2,6,25)) ++static void zero_user_segment(struct page *page, unsigned start, unsigned end) ++{ ++ void * kaddr = kmap_atomic(page, KM_USER0); ++ memset(kaddr + start, 0, end - start); ++ kunmap_atomic(kaddr, KM_USER0); ++ flush_dcache_page(page); ++} ++#endif ++ ++ ++static const struct inode_operations yaffs_file_inode_operations = { ++ .setattr = yaffs_setattr, ++#ifdef CONFIG_YAFFS_XATTR ++ .setxattr = yaffs_setxattr, ++ .getxattr = yaffs_getxattr, ++ .listxattr = yaffs_listxattr, ++ .removexattr = yaffs_removexattr, ++#endif ++}; ++ ++static const struct inode_operations yaffs_symlink_inode_operations = { ++ .readlink = yaffs_readlink, ++ .follow_link = yaffs_follow_link, ++#if (YAFFS_NEW_FOLLOW_LINK == 1) ++ .put_link = yaffs_put_link, ++#endif ++ .setattr = yaffs_setattr, ++#ifdef CONFIG_YAFFS_XATTR ++ .setxattr = yaffs_setxattr, ++ .getxattr = yaffs_getxattr, ++ .listxattr = yaffs_listxattr, ++ .removexattr = yaffs_removexattr, ++#endif ++}; ++ ++static const struct inode_operations yaffs_dir_inode_operations = { ++ .create = yaffs_create, ++ .lookup = yaffs_lookup, ++ .link = yaffs_link, ++ .unlink = yaffs_unlink, ++ .symlink = yaffs_symlink, ++ .mkdir = yaffs_mkdir, ++ .rmdir = yaffs_unlink, ++ .mknod = yaffs_mknod, ++ .rename = yaffs_rename, ++ .setattr = yaffs_setattr, ++#ifdef CONFIG_YAFFS_XATTR ++ .setxattr = yaffs_setxattr, ++ .getxattr = yaffs_getxattr, ++ .listxattr = yaffs_listxattr, ++ .removexattr = yaffs_removexattr, ++#endif ++}; ++ ++static const struct file_operations yaffs_dir_operations = { ++ .read = generic_read_dir, ++ .readdir = yaffs_readdir, ++ .fsync = yaffs_sync_object, ++ .llseek = yaffs_dir_llseek, ++}; ++ ++static const struct super_operations yaffs_super_ops = { ++ .statfs = yaffs_statfs, ++ ++#ifndef YAFFS_USE_OWN_IGET ++ .read_inode = yaffs_read_inode, ++#endif ++#ifdef YAFFS_HAS_PUT_INODE ++ .put_inode = yaffs_put_inode, ++#endif ++ .put_super = yaffs_put_super, ++#ifdef YAFFS_HAS_EVICT_INODE ++ .evict_inode = yaffs_evict_inode, ++#else ++ .delete_inode = yaffs_delete_inode, ++ .clear_inode = yaffs_clear_inode, ++#endif ++ .sync_fs = yaffs_sync_fs, ++ .write_super = yaffs_write_super, ++}; ++ ++ ++static int yaffs_vfs_setattr(struct inode *inode, struct iattr *attr) ++{ ++#ifdef YAFFS_USE_SETATTR_COPY ++ setattr_copy(inode,attr); ++ return 0; ++#else ++ return inode_setattr(inode, attr); ++#endif ++ ++} ++ ++static int yaffs_vfs_setsize(struct inode *inode, loff_t newsize) ++{ ++#ifdef YAFFS_USE_TRUNCATE_SETSIZE ++ truncate_setsize(inode,newsize); ++ return 0; ++#else ++ truncate_inode_pages(&inode->i_data,newsize); ++ return 0; ++#endif ++ ++} ++ ++static unsigned yaffs_gc_control_callback(yaffs_dev_t *dev) ++{ ++ return yaffs_gc_control; ++} ++ ++static void yaffs_gross_lock(yaffs_dev_t *dev) ++{ ++ T(YAFFS_TRACE_LOCK, (TSTR("yaffs locking %p\n"), current)); ++ down(&(yaffs_dev_to_lc(dev)->grossLock)); ++ T(YAFFS_TRACE_LOCK, (TSTR("yaffs locked %p\n"), current)); ++} ++ ++static void yaffs_gross_unlock(yaffs_dev_t *dev) ++{ ++ T(YAFFS_TRACE_LOCK, (TSTR("yaffs unlocking %p\n"), current)); ++ up(&(yaffs_dev_to_lc(dev)->grossLock)); ++} ++ ++#ifdef YAFFS_COMPILE_EXPORTFS ++ ++static struct inode * ++yaffs2_nfs_get_inode(struct super_block *sb, uint64_t ino, uint32_t generation) ++{ ++ return Y_IGET(sb, ino); ++} ++ ++static struct dentry * ++yaffs2_fh_to_dentry(struct super_block *sb, struct fid *fid, int fh_len, int fh_type) ++{ ++ return generic_fh_to_dentry(sb, fid, fh_len, fh_type, yaffs2_nfs_get_inode) ; ++} ++ ++static struct dentry * ++ yaffs2_fh_to_parent(struct super_block *sb, struct fid *fid, int fh_len, int fh_type) ++{ ++ return generic_fh_to_parent(sb, fid, fh_len, fh_type, yaffs2_nfs_get_inode); ++} ++ ++struct dentry *yaffs2_get_parent(struct dentry *dentry) ++{ ++ ++ struct super_block *sb = dentry->d_inode->i_sb; ++ struct dentry *parent = ERR_PTR(-ENOENT); ++ struct inode *inode; ++ unsigned long parent_ino; ++ yaffs_obj_t *d_obj; ++ yaffs_obj_t *parent_obj; ++ ++ d_obj = yaffs_InodeToObject(dentry->d_inode); ++ ++ if (d_obj) { ++ parent_obj = d_obj->parent; ++ if (parent_obj) { ++ parent_ino = yaffs_get_obj_inode(parent_obj); ++ inode = Y_IGET(sb, parent_ino); ++ ++ if (IS_ERR(inode)) { ++ parent = ERR_CAST(inode); ++ } else { ++ parent = d_obtain_alias(inode); ++ if (!IS_ERR(parent)) { ++ parent = ERR_PTR(-ENOMEM); ++ iput(inode); ++ } ++ } ++ } ++ } ++ ++ return parent; ++} ++ ++/* Just declare a zero structure as a NULL value implies ++ * using the default functions of exportfs. ++ */ ++ ++static struct export_operations yaffs_export_ops = ++{ ++ .fh_to_dentry = yaffs2_fh_to_dentry, ++ .fh_to_parent = yaffs2_fh_to_parent, ++ .get_parent = yaffs2_get_parent, ++} ; ++ ++#endif ++ ++/*-----------------------------------------------------------------*/ ++/* Directory search context allows us to unlock access to yaffs during ++ * filldir without causing problems with the directory being modified. ++ * This is similar to the tried and tested mechanism used in yaffs direct. ++ * ++ * A search context iterates along a doubly linked list of siblings in the ++ * directory. If the iterating object is deleted then this would corrupt ++ * the list iteration, likely causing a crash. The search context avoids ++ * this by using the remove_obj_fn to move the search context to the ++ * next object before the object is deleted. ++ * ++ * Many readdirs (and thus seach conexts) may be alive simulateously so ++ * each yaffs_dev_t has a list of these. ++ * ++ * A seach context lives for the duration of a readdir. ++ * ++ * All these functions must be called while yaffs is locked. ++ */ ++ ++struct yaffs_SearchContext { ++ yaffs_dev_t *dev; ++ yaffs_obj_t *dirObj; ++ yaffs_obj_t *nextReturn; ++ struct ylist_head others; ++}; ++ ++/* ++ * yaffs_NewSearch() creates a new search context, initialises it and ++ * adds it to the device's search context list. ++ * ++ * Called at start of readdir. ++ */ ++static struct yaffs_SearchContext * yaffs_NewSearch(yaffs_obj_t *dir) ++{ ++ yaffs_dev_t *dev = dir->my_dev; ++ struct yaffs_SearchContext *sc = YMALLOC(sizeof(struct yaffs_SearchContext)); ++ if(sc){ ++ sc->dirObj = dir; ++ sc->dev = dev; ++ if( ylist_empty(&sc->dirObj->variant.dir_variant.children)) ++ sc->nextReturn = NULL; ++ else ++ sc->nextReturn = ylist_entry( ++ dir->variant.dir_variant.children.next, ++ yaffs_obj_t,siblings); ++ YINIT_LIST_HEAD(&sc->others); ++ ylist_add(&sc->others,&(yaffs_dev_to_lc(dev)->searchContexts)); ++ } ++ return sc; ++} ++ ++/* ++ * yaffs_search_end() disposes of a search context and cleans up. ++ */ ++static void yaffs_search_end(struct yaffs_SearchContext * sc) ++{ ++ if(sc){ ++ ylist_del(&sc->others); ++ YFREE(sc); ++ } ++} ++ ++/* ++ * yaffs_search_advance() moves a search context to the next object. ++ * Called when the search iterates or when an object removal causes ++ * the search context to be moved to the next object. ++ */ ++static void yaffs_search_advance(struct yaffs_SearchContext *sc) ++{ ++ if(!sc) ++ return; ++ ++ if( sc->nextReturn == NULL || ++ ylist_empty(&sc->dirObj->variant.dir_variant.children)) ++ sc->nextReturn = NULL; ++ else { ++ struct ylist_head *next = sc->nextReturn->siblings.next; ++ ++ if( next == &sc->dirObj->variant.dir_variant.children) ++ sc->nextReturn = NULL; /* end of list */ ++ else ++ sc->nextReturn = ylist_entry(next,yaffs_obj_t,siblings); ++ } ++} ++ ++/* ++ * yaffs_remove_obj_callback() is called when an object is unlinked. ++ * We check open search contexts and advance any which are currently ++ * on the object being iterated. ++ */ ++static void yaffs_remove_obj_callback(yaffs_obj_t *obj) ++{ ++ ++ struct ylist_head *i; ++ struct yaffs_SearchContext *sc; ++ struct ylist_head *search_contexts = &(yaffs_dev_to_lc(obj->my_dev)->searchContexts); ++ ++ ++ /* Iterate through the directory search contexts. ++ * If any are currently on the object being removed, then advance ++ * the search context to the next object to prevent a hanging pointer. ++ */ ++ ylist_for_each(i, search_contexts) { ++ if (i) { ++ sc = ylist_entry(i, struct yaffs_SearchContext,others); ++ if(sc->nextReturn == obj) ++ yaffs_search_advance(sc); ++ } ++ } ++ ++} ++ ++ ++/*-----------------------------------------------------------------*/ ++ ++static int yaffs_readlink(struct dentry *dentry, char __user *buffer, ++ int buflen) ++{ ++ unsigned char *alias; ++ int ret; ++ ++ yaffs_dev_t *dev = yaffs_dentry_to_obj(dentry)->my_dev; ++ ++ yaffs_gross_lock(dev); ++ ++ alias = yaffs_get_symlink_alias(yaffs_dentry_to_obj(dentry)); ++ ++ yaffs_gross_unlock(dev); ++ ++ if (!alias) ++ return -ENOMEM; ++ ++ ret = vfs_readlink(dentry, buffer, buflen, alias); ++ kfree(alias); ++ return ret; ++} ++ ++#if (YAFFS_NEW_FOLLOW_LINK == 1) ++static void *yaffs_follow_link(struct dentry *dentry, struct nameidata *nd) ++#else ++static int yaffs_follow_link(struct dentry *dentry, struct nameidata *nd) ++#endif ++{ ++ unsigned char *alias; ++ int ret; ++ yaffs_dev_t *dev = yaffs_dentry_to_obj(dentry)->my_dev; ++ ++ yaffs_gross_lock(dev); ++ ++ alias = yaffs_get_symlink_alias(yaffs_dentry_to_obj(dentry)); ++ yaffs_gross_unlock(dev); ++ ++ if (!alias) { ++ ret = -ENOMEM; ++ goto out; ++ } ++ ++#if (YAFFS_NEW_FOLLOW_LINK == 1) ++ nd_set_link(nd, alias); ++ ret = (int)alias; ++out: ++ return ERR_PTR(ret); ++#else ++ ret = vfs_follow_link(nd, alias); ++ kfree(alias); ++out: ++ return ret; ++#endif ++} ++ ++#if (YAFFS_NEW_FOLLOW_LINK == 1) ++void yaffs_put_link(struct dentry *dentry, struct nameidata *nd, void *alias) { ++ kfree(alias); ++} ++#endif ++ ++struct inode *yaffs_get_inode(struct super_block *sb, int mode, int dev, ++ yaffs_obj_t *obj); ++ ++/* ++ * Lookup is used to find objects in the fs ++ */ ++#if (LINUX_VERSION_CODE > KERNEL_VERSION(2, 5, 0)) ++ ++static struct dentry *yaffs_lookup(struct inode *dir, struct dentry *dentry, ++ struct nameidata *n) ++#else ++static struct dentry *yaffs_lookup(struct inode *dir, struct dentry *dentry) ++#endif ++{ ++ yaffs_obj_t *obj; ++ struct inode *inode = NULL; /* NCB 2.5/2.6 needs NULL here */ ++ ++ yaffs_dev_t *dev = yaffs_InodeToObject(dir)->my_dev; ++ ++ if(current != yaffs_dev_to_lc(dev)->readdirProcess) ++ yaffs_gross_lock(dev); ++ ++ T(YAFFS_TRACE_OS, ++ (TSTR("yaffs_lookup for %d:%s\n"), ++ yaffs_InodeToObject(dir)->obj_id, dentry->d_name.name)); ++ ++ obj = yaffs_find_by_name(yaffs_InodeToObject(dir), ++ dentry->d_name.name); ++ ++ obj = yaffs_get_equivalent_obj(obj); /* in case it was a hardlink */ ++ ++ /* Can't hold gross lock when calling yaffs_get_inode() */ ++ if(current != yaffs_dev_to_lc(dev)->readdirProcess) ++ yaffs_gross_unlock(dev); ++ ++ if (obj) { ++ T(YAFFS_TRACE_OS, ++ (TSTR("yaffs_lookup found %d\n"), obj->obj_id)); ++ ++ inode = yaffs_get_inode(dir->i_sb, obj->yst_mode, 0, obj); ++ ++ if (inode) { ++ T(YAFFS_TRACE_OS, ++ (TSTR("yaffs_loookup dentry \n"))); ++/* #if 0 asserted by NCB for 2.5/6 compatability - falls through to ++ * d_add even if NULL inode */ ++#if 0 ++ /*dget(dentry); // try to solve directory bug */ ++ d_add(dentry, inode); ++ ++ /* return dentry; */ ++ return NULL; ++#endif ++ } ++ ++ } else { ++ T(YAFFS_TRACE_OS,(TSTR("yaffs_lookup not found\n"))); ++ ++ } ++ ++/* added NCB for 2.5/6 compatability - forces add even if inode is ++ * NULL which creates dentry hash */ ++ d_add(dentry, inode); ++ ++ return NULL; ++} ++ ++ ++#ifdef YAFFS_HAS_PUT_INODE ++ ++/* For now put inode is just for debugging ++ * Put inode is called when the inode **structure** is put. ++ */ ++static void yaffs_put_inode(struct inode *inode) ++{ ++ T(YAFFS_TRACE_OS, ++ (TSTR("yaffs_put_inode: ino %d, count %d\n"), (int)inode->i_ino, ++ atomic_read(&inode->i_count))); ++ ++} ++#endif ++ ++ ++static void yaffs_unstitch_obj(struct inode *inode, yaffs_obj_t *obj) ++{ ++ /* Clear the association between the inode and ++ * the yaffs_obj_t. ++ */ ++ obj->my_inode = NULL; ++ yaffs_InodeToObjectLV(inode) = NULL; ++ ++ /* If the object freeing was deferred, then the real ++ * free happens now. ++ * This should fix the inode inconsistency problem. ++ */ ++ yaffs_handle_defered_free(obj); ++} ++ ++#ifdef YAFFS_HAS_EVICT_INODE ++/* yaffs_evict_inode combines into one operation what was previously done in ++ * yaffs_clear_inode() and yaffs_delete_inode() ++ * ++ */ ++static void yaffs_evict_inode( struct inode *inode) ++{ ++ yaffs_obj_t *obj; ++ yaffs_dev_t *dev; ++ int deleteme = 0; ++ ++ obj = yaffs_InodeToObject(inode); ++ ++ T(YAFFS_TRACE_OS, ++ (TSTR("yaffs_evict_inode: ino %d, count %d %s\n"), (int)inode->i_ino, ++ atomic_read(&inode->i_count), ++ obj ? "object exists" : "null object")); ++ ++ if (!inode->i_nlink && !is_bad_inode(inode)) ++ deleteme = 1; ++ truncate_inode_pages(&inode->i_data,0); ++ end_writeback(inode); ++ ++ if(deleteme && obj){ ++ dev = obj->my_dev; ++ yaffs_gross_lock(dev); ++ yaffs_del_obj(obj); ++ yaffs_gross_unlock(dev); ++ } ++ if (obj) { ++ dev = obj->my_dev; ++ yaffs_gross_lock(dev); ++ yaffs_unstitch_obj(inode,obj); ++ yaffs_gross_unlock(dev); ++ } ++ ++ ++} ++#else ++ ++/* clear is called to tell the fs to release any per-inode data it holds. ++ * The object might still exist on disk and is just being thrown out of the cache ++ * or else the object has actually been deleted and we're being called via ++ * the chain ++ * yaffs_delete_inode() -> clear_inode()->yaffs_clear_inode() ++ */ ++ ++static void yaffs_clear_inode(struct inode *inode) ++{ ++ yaffs_obj_t *obj; ++ yaffs_dev_t *dev; ++ ++ obj = yaffs_InodeToObject(inode); ++ ++ T(YAFFS_TRACE_OS, ++ (TSTR("yaffs_clear_inode: ino %d, count %d %s\n"), (int)inode->i_ino, ++ atomic_read(&inode->i_count), ++ obj ? "object exists" : "null object")); ++ ++ if (obj) { ++ dev = obj->my_dev; ++ yaffs_gross_lock(dev); ++ yaffs_unstitch_obj(inode,obj); ++ yaffs_gross_unlock(dev); ++ } ++ ++} ++ ++/* delete is called when the link count is zero and the inode ++ * is put (ie. nobody wants to know about it anymore, time to ++ * delete the file). ++ * NB Must call clear_inode() ++ */ ++static void yaffs_delete_inode(struct inode *inode) ++{ ++ yaffs_obj_t *obj = yaffs_InodeToObject(inode); ++ yaffs_dev_t *dev; ++ ++ T(YAFFS_TRACE_OS, ++ (TSTR("yaffs_delete_inode: ino %d, count %d %s\n"), (int)inode->i_ino, ++ atomic_read(&inode->i_count), ++ obj ? "object exists" : "null object")); ++ ++ if (obj) { ++ dev = obj->my_dev; ++ yaffs_gross_lock(dev); ++ yaffs_del_obj(obj); ++ yaffs_gross_unlock(dev); ++ } ++#if (LINUX_VERSION_CODE > KERNEL_VERSION(2, 6, 13)) ++ truncate_inode_pages(&inode->i_data, 0); ++#endif ++ clear_inode(inode); ++} ++#endif ++ ++ ++#if (LINUX_VERSION_CODE > KERNEL_VERSION(2, 6, 17)) ++static int yaffs_file_flush(struct file *file, fl_owner_t id) ++#else ++static int yaffs_file_flush(struct file *file) ++#endif ++{ ++ yaffs_obj_t *obj = yaffs_dentry_to_obj(file->f_dentry); ++ ++ yaffs_dev_t *dev = obj->my_dev; ++ ++ T(YAFFS_TRACE_OS, ++ (TSTR("yaffs_file_flush object %d (%s)\n"), obj->obj_id, ++ obj->dirty ? "dirty" : "clean")); ++ ++ yaffs_gross_lock(dev); ++ ++ yaffs_flush_file(obj, 1, 0); ++ ++ yaffs_gross_unlock(dev); ++ ++ return 0; ++} ++ ++static int yaffs_readpage_nolock(struct file *f, struct page *pg) ++{ ++ /* Lifted from jffs2 */ ++ ++ yaffs_obj_t *obj; ++ unsigned char *pg_buf; ++ int ret; ++ ++ yaffs_dev_t *dev; ++ ++ T(YAFFS_TRACE_OS, ++ (TSTR("yaffs_readpage_nolock at %08x, size %08x\n"), ++ (unsigned)(pg->index << PAGE_CACHE_SHIFT), ++ (unsigned)PAGE_CACHE_SIZE)); ++ ++ obj = yaffs_dentry_to_obj(f->f_dentry); ++ ++ dev = obj->my_dev; ++ ++#if (LINUX_VERSION_CODE > KERNEL_VERSION(2, 5, 0)) ++ BUG_ON(!PageLocked(pg)); ++#else ++ if (!PageLocked(pg)) ++ PAGE_BUG(pg); ++#endif ++ ++ pg_buf = kmap(pg); ++ /* FIXME: Can kmap fail? */ ++ ++ yaffs_gross_lock(dev); ++ ++ ret = yaffs_file_rd(obj, pg_buf, ++ pg->index << PAGE_CACHE_SHIFT, ++ PAGE_CACHE_SIZE); ++ ++ yaffs_gross_unlock(dev); ++ ++ if (ret >= 0) ++ ret = 0; ++ ++ if (ret) { ++ ClearPageUptodate(pg); ++ SetPageError(pg); ++ } else { ++ SetPageUptodate(pg); ++ ClearPageError(pg); ++ } ++ ++ flush_dcache_page(pg); ++ kunmap(pg); ++ ++ T(YAFFS_TRACE_OS, (TSTR("yaffs_readpage_nolock done\n"))); ++ return ret; ++} ++ ++static int yaffs_readpage_unlock(struct file *f, struct page *pg) ++{ ++ int ret = yaffs_readpage_nolock(f, pg); ++ UnlockPage(pg); ++ return ret; ++} ++ ++static int yaffs_readpage(struct file *f, struct page *pg) ++{ ++ int ret; ++ ++ T(YAFFS_TRACE_OS, (TSTR("yaffs_readpage\n"))); ++ ret=yaffs_readpage_unlock(f, pg); ++ T(YAFFS_TRACE_OS, (TSTR("yaffs_readpage done\n"))); ++ return ret; ++} ++ ++/* writepage inspired by/stolen from smbfs */ ++ ++#if (LINUX_VERSION_CODE > KERNEL_VERSION(2, 5, 0)) ++static int yaffs_writepage(struct page *page, struct writeback_control *wbc) ++#else ++static int yaffs_writepage(struct page *page) ++#endif ++{ ++ yaffs_dev_t *dev; ++ struct address_space *mapping = page->mapping; ++ struct inode *inode; ++ unsigned long end_index; ++ char *buffer; ++ yaffs_obj_t *obj; ++ int nWritten = 0; ++ unsigned n_bytes; ++ loff_t i_size; ++ ++ if (!mapping) ++ BUG(); ++ inode = mapping->host; ++ if (!inode) ++ BUG(); ++ i_size = i_size_read(inode); ++ ++ end_index = i_size >> PAGE_CACHE_SHIFT; ++ ++ if(page->index < end_index) ++ n_bytes = PAGE_CACHE_SIZE; ++ else { ++ n_bytes = i_size & (PAGE_CACHE_SIZE -1); ++ ++ if (page->index > end_index || !n_bytes) { ++ T(YAFFS_TRACE_OS, ++ (TSTR("yaffs_writepage at %08x, inode size = %08x!!!\n"), ++ (unsigned)(page->index << PAGE_CACHE_SHIFT), ++ (unsigned)inode->i_size)); ++ T(YAFFS_TRACE_OS, ++ (TSTR(" -> don't care!!\n"))); ++ ++ zero_user_segment(page,0,PAGE_CACHE_SIZE); ++ set_page_writeback(page); ++ unlock_page(page); ++ end_page_writeback(page); ++ return 0; ++ } ++ } ++ ++ if(n_bytes != PAGE_CACHE_SIZE) ++ zero_user_segment(page,n_bytes,PAGE_CACHE_SIZE); ++ ++ get_page(page); ++ ++ buffer = kmap(page); ++ ++ obj = yaffs_InodeToObject(inode); ++ dev = obj->my_dev; ++ yaffs_gross_lock(dev); ++ ++ T(YAFFS_TRACE_OS, ++ (TSTR("yaffs_writepage at %08x, size %08x\n"), ++ (unsigned)(page->index << PAGE_CACHE_SHIFT), n_bytes)); ++ T(YAFFS_TRACE_OS, ++ (TSTR("writepag0: obj = %05x, ino = %05x\n"), ++ (int)obj->variant.file_variant.file_size, (int)inode->i_size)); ++ ++ nWritten = yaffs_wr_file(obj, buffer, ++ page->index << PAGE_CACHE_SHIFT, n_bytes, 0); ++ ++ yaffs_touch_super(dev); ++ ++ T(YAFFS_TRACE_OS, ++ (TSTR("writepag1: obj = %05x, ino = %05x\n"), ++ (int)obj->variant.file_variant.file_size, (int)inode->i_size)); ++ ++ yaffs_gross_unlock(dev); ++ ++ kunmap(page); ++ set_page_writeback(page); ++ unlock_page(page); ++ end_page_writeback(page); ++ put_page(page); ++ ++ return (nWritten == n_bytes) ? 0 : -ENOSPC; ++} ++ ++ ++#if (YAFFS_USE_WRITE_BEGIN_END > 0) ++static int yaffs_write_begin(struct file *filp, struct address_space *mapping, ++ loff_t pos, unsigned len, unsigned flags, ++ struct page **pagep, void **fsdata) ++{ ++ struct page *pg = NULL; ++ pgoff_t index = pos >> PAGE_CACHE_SHIFT; ++ ++ int ret = 0; ++ int space_held = 0; ++ ++ /* Get a page */ ++#if LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 28) ++ pg = grab_cache_page_write_begin(mapping, index, flags); ++#else ++ pg = __grab_cache_page(mapping, index); ++#endif ++ ++ *pagep = pg; ++ if (!pg) { ++ ret = -ENOMEM; ++ goto out; ++ } ++ T(YAFFS_TRACE_OS, ++ (TSTR("start yaffs_write_begin index %d(%x) uptodate %d\n"), ++ (int)index,(int)index,Page_Uptodate(pg) ? 1 : 0)); ++ ++ /* Get fs space */ ++ space_held = yaffs_hold_space(filp); ++ ++ if (!space_held) { ++ ret = -ENOSPC; ++ goto out; ++ } ++ ++ /* Update page if required */ ++ ++ if (!Page_Uptodate(pg)) ++ ret = yaffs_readpage_nolock(filp, pg); ++ ++ if (ret) ++ goto out; ++ ++ /* Happy path return */ ++ T(YAFFS_TRACE_OS, (TSTR("end yaffs_write_begin - ok\n"))); ++ ++ return 0; ++ ++out: ++ T(YAFFS_TRACE_OS, ++ (TSTR("end yaffs_write_begin fail returning %d\n"), ret)); ++ if (space_held) ++ yaffs_release_space(filp); ++ if (pg) { ++ unlock_page(pg); ++ page_cache_release(pg); ++ } ++ return ret; ++} ++ ++#else ++ ++static int yaffs_prepare_write(struct file *f, struct page *pg, ++ unsigned offset, unsigned to) ++{ ++ T(YAFFS_TRACE_OS, (TSTR("yaffs_prepair_write\n"))); ++ ++ if (!Page_Uptodate(pg)) ++ return yaffs_readpage_nolock(f, pg); ++ return 0; ++} ++#endif ++ ++#if (YAFFS_USE_WRITE_BEGIN_END > 0) ++static int yaffs_write_end(struct file *filp, struct address_space *mapping, ++ loff_t pos, unsigned len, unsigned copied, ++ struct page *pg, void *fsdadata) ++{ ++ int ret = 0; ++ void *addr, *kva; ++ uint32_t offset_into_page = pos & (PAGE_CACHE_SIZE - 1); ++ ++ kva = kmap(pg); ++ addr = kva + offset_into_page; ++ ++ T(YAFFS_TRACE_OS, ++ ("yaffs_write_end addr %p pos %x n_bytes %d\n", ++ addr,(unsigned)pos, copied)); ++ ++ ret = yaffs_file_write(filp, addr, copied, &pos); ++ ++ if (ret != copied) { ++ T(YAFFS_TRACE_OS, ++ (TSTR("yaffs_write_end not same size ret %d copied %d\n"), ++ ret, copied)); ++ SetPageError(pg); ++ } else { ++ /* Nothing */ ++ } ++ ++ kunmap(pg); ++ ++ yaffs_release_space(filp); ++ unlock_page(pg); ++ page_cache_release(pg); ++ return ret; ++} ++#else ++ ++static int yaffs_commit_write(struct file *f, struct page *pg, unsigned offset, ++ unsigned to) ++{ ++ void *addr, *kva; ++ ++ loff_t pos = (((loff_t) pg->index) << PAGE_CACHE_SHIFT) + offset; ++ int n_bytes = to - offset; ++ int nWritten; ++ ++ unsigned spos = pos; ++ unsigned saddr; ++ ++ kva = kmap(pg); ++ addr = kva + offset; ++ ++ saddr = (unsigned) addr; ++ ++ T(YAFFS_TRACE_OS, ++ (TSTR("yaffs_commit_write addr %x pos %x n_bytes %d\n"), ++ saddr, spos, n_bytes)); ++ ++ nWritten = yaffs_file_write(f, addr, n_bytes, &pos); ++ ++ if (nWritten != n_bytes) { ++ T(YAFFS_TRACE_OS, ++ (TSTR("yaffs_commit_write not same size nWritten %d n_bytes %d\n"), ++ nWritten, n_bytes)); ++ SetPageError(pg); ++ } else { ++ /* Nothing */ ++ } ++ ++ kunmap(pg); ++ ++ T(YAFFS_TRACE_OS, ++ (TSTR("yaffs_commit_write returning %d\n"), ++ nWritten == n_bytes ? 0 : nWritten)); ++ ++ return nWritten == n_bytes ? 0 : nWritten; ++} ++#endif ++ ++ ++static void yaffs_fill_inode_from_obj(struct inode *inode, yaffs_obj_t *obj) ++{ ++ if (inode && obj) { ++ ++ ++ /* Check mode against the variant type and attempt to repair if broken. */ ++ __u32 mode = obj->yst_mode; ++ switch (obj->variant_type) { ++ case YAFFS_OBJECT_TYPE_FILE: ++ if (!S_ISREG(mode)) { ++ obj->yst_mode &= ~S_IFMT; ++ obj->yst_mode |= S_IFREG; ++ } ++ ++ break; ++ case YAFFS_OBJECT_TYPE_SYMLINK: ++ if (!S_ISLNK(mode)) { ++ obj->yst_mode &= ~S_IFMT; ++ obj->yst_mode |= S_IFLNK; ++ } ++ ++ break; ++ case YAFFS_OBJECT_TYPE_DIRECTORY: ++ if (!S_ISDIR(mode)) { ++ obj->yst_mode &= ~S_IFMT; ++ obj->yst_mode |= S_IFDIR; ++ } ++ ++ break; ++ case YAFFS_OBJECT_TYPE_UNKNOWN: ++ case YAFFS_OBJECT_TYPE_HARDLINK: ++ case YAFFS_OBJECT_TYPE_SPECIAL: ++ default: ++ /* TODO? */ ++ break; ++ } ++ ++ inode->i_flags |= S_NOATIME; ++ ++ inode->i_ino = obj->obj_id; ++ inode->i_mode = obj->yst_mode; ++ inode->i_uid = obj->yst_uid; ++ inode->i_gid = obj->yst_gid; ++#if (LINUX_VERSION_CODE < KERNEL_VERSION(2, 6, 19)) ++ inode->i_blksize = inode->i_sb->s_blocksize; ++#endif ++#if (LINUX_VERSION_CODE > KERNEL_VERSION(2, 5, 0)) ++ ++ inode->i_rdev = old_decode_dev(obj->yst_rdev); ++ inode->i_atime.tv_sec = (time_t) (obj->yst_atime); ++ inode->i_atime.tv_nsec = 0; ++ inode->i_mtime.tv_sec = (time_t) obj->yst_mtime; ++ inode->i_mtime.tv_nsec = 0; ++ inode->i_ctime.tv_sec = (time_t) obj->yst_ctime; ++ inode->i_ctime.tv_nsec = 0; ++#else ++ inode->i_rdev = obj->yst_rdev; ++ inode->i_atime = obj->yst_atime; ++ inode->i_mtime = obj->yst_mtime; ++ inode->i_ctime = obj->yst_ctime; ++#endif ++ inode->i_size = yaffs_get_obj_length(obj); ++ inode->i_blocks = (inode->i_size + 511) >> 9; ++ ++ inode->i_nlink = yaffs_get_obj_link_count(obj); ++ ++ T(YAFFS_TRACE_OS, ++ (TSTR("yaffs_fill_inode mode %x uid %d gid %d size %d count %d\n"), ++ inode->i_mode, inode->i_uid, inode->i_gid, ++ (int)inode->i_size, atomic_read(&inode->i_count))); ++ ++ switch (obj->yst_mode & S_IFMT) { ++ default: /* fifo, device or socket */ ++#if (LINUX_VERSION_CODE > KERNEL_VERSION(2, 5, 0)) ++ init_special_inode(inode, obj->yst_mode, ++ old_decode_dev(obj->yst_rdev)); ++#else ++ init_special_inode(inode, obj->yst_mode, ++ (dev_t) (obj->yst_rdev)); ++#endif ++ break; ++ case S_IFREG: /* file */ ++ inode->i_op = &yaffs_file_inode_operations; ++ inode->i_fop = &yaffs_file_operations; ++ inode->i_mapping->a_ops = ++ &yaffs_file_address_operations; ++ break; ++ case S_IFDIR: /* directory */ ++ inode->i_op = &yaffs_dir_inode_operations; ++ inode->i_fop = &yaffs_dir_operations; ++ break; ++ case S_IFLNK: /* symlink */ ++ inode->i_op = &yaffs_symlink_inode_operations; ++ break; ++ } ++ ++ yaffs_InodeToObjectLV(inode) = obj; ++ ++ obj->my_inode = inode; ++ ++ } else { ++ T(YAFFS_TRACE_OS, ++ (TSTR("yaffs_FileInode invalid parameters\n"))); ++ } ++ ++} ++ ++struct inode *yaffs_get_inode(struct super_block *sb, int mode, int dev, ++ yaffs_obj_t *obj) ++{ ++ struct inode *inode; ++ ++ if (!sb) { ++ T(YAFFS_TRACE_OS, ++ (TSTR("yaffs_get_inode for NULL super_block!!\n"))); ++ return NULL; ++ ++ } ++ ++ if (!obj) { ++ T(YAFFS_TRACE_OS, ++ (TSTR("yaffs_get_inode for NULL object!!\n"))); ++ return NULL; ++ ++ } ++ ++ T(YAFFS_TRACE_OS, ++ (TSTR("yaffs_get_inode for object %d\n"), obj->obj_id)); ++ ++ inode = Y_IGET(sb, obj->obj_id); ++ if (IS_ERR(inode)) ++ return NULL; ++ ++ /* NB Side effect: iget calls back to yaffs_read_inode(). */ ++ /* iget also increments the inode's i_count */ ++ /* NB You can't be holding grossLock or deadlock will happen! */ ++ ++ return inode; ++} ++ ++static ssize_t yaffs_file_write(struct file *f, const char *buf, size_t n, ++ loff_t *pos) ++{ ++ yaffs_obj_t *obj; ++ int nWritten, ipos; ++ struct inode *inode; ++ yaffs_dev_t *dev; ++ ++ obj = yaffs_dentry_to_obj(f->f_dentry); ++ ++ dev = obj->my_dev; ++ ++ yaffs_gross_lock(dev); ++ ++ inode = f->f_dentry->d_inode; ++ ++ if (!S_ISBLK(inode->i_mode) && f->f_flags & O_APPEND) ++ ipos = inode->i_size; ++ else ++ ipos = *pos; ++ ++ if (!obj) ++ T(YAFFS_TRACE_OS, ++ (TSTR("yaffs_file_write: hey obj is null!\n"))); ++ else ++ T(YAFFS_TRACE_OS, ++ (TSTR("yaffs_file_write about to write writing %u(%x) bytes" ++ "to object %d at %d(%x)\n"), ++ (unsigned) n, (unsigned) n, obj->obj_id, ipos,ipos)); ++ ++ nWritten = yaffs_wr_file(obj, buf, ipos, n, 0); ++ ++ yaffs_touch_super(dev); ++ ++ T(YAFFS_TRACE_OS, ++ (TSTR("yaffs_file_write: %d(%x) bytes written\n"), ++ (unsigned )n,(unsigned)n)); ++ ++ if (nWritten > 0) { ++ ipos += nWritten; ++ *pos = ipos; ++ if (ipos > inode->i_size) { ++ inode->i_size = ipos; ++ inode->i_blocks = (ipos + 511) >> 9; ++ ++ T(YAFFS_TRACE_OS, ++ (TSTR("yaffs_file_write size updated to %d bytes, " ++ "%d blocks\n"), ++ ipos, (int)(inode->i_blocks))); ++ } ++ ++ } ++ yaffs_gross_unlock(dev); ++ return (nWritten == 0) && (n > 0) ? -ENOSPC : nWritten; ++} ++ ++/* Space holding and freeing is done to ensure we have space available for write_begin/end */ ++/* For now we just assume few parallel writes and check against a small number. */ ++/* Todo: need to do this with a counter to handle parallel reads better */ ++ ++static ssize_t yaffs_hold_space(struct file *f) ++{ ++ yaffs_obj_t *obj; ++ yaffs_dev_t *dev; ++ ++ int n_free_chunks; ++ ++ ++ obj = yaffs_dentry_to_obj(f->f_dentry); ++ ++ dev = obj->my_dev; ++ ++ yaffs_gross_lock(dev); ++ ++ n_free_chunks = yaffs_get_n_free_chunks(dev); ++ ++ yaffs_gross_unlock(dev); ++ ++ return (n_free_chunks > 20) ? 1 : 0; ++} ++ ++static void yaffs_release_space(struct file *f) ++{ ++ yaffs_obj_t *obj; ++ yaffs_dev_t *dev; ++ ++ ++ obj = yaffs_dentry_to_obj(f->f_dentry); ++ ++ dev = obj->my_dev; ++ ++ yaffs_gross_lock(dev); ++ ++ ++ yaffs_gross_unlock(dev); ++} ++ ++ ++static loff_t yaffs_dir_llseek(struct file *file, loff_t offset, int origin) ++{ ++ long long retval; ++ ++ lock_kernel(); ++ ++ switch (origin){ ++ case 2: ++ offset += i_size_read(file->f_path.dentry->d_inode); ++ break; ++ case 1: ++ offset += file->f_pos; ++ } ++ retval = -EINVAL; ++ ++ if (offset >= 0){ ++ if (offset != file->f_pos) ++ file->f_pos = offset; ++ ++ retval = offset; ++ } ++ unlock_kernel(); ++ return retval; ++} ++ ++ ++static int yaffs_readdir(struct file *f, void *dirent, filldir_t filldir) ++{ ++ yaffs_obj_t *obj; ++ yaffs_dev_t *dev; ++ struct yaffs_SearchContext *sc; ++ struct inode *inode = f->f_dentry->d_inode; ++ unsigned long offset, curoffs; ++ yaffs_obj_t *l; ++ int retVal = 0; ++ ++ char name[YAFFS_MAX_NAME_LENGTH + 1]; ++ ++ obj = yaffs_dentry_to_obj(f->f_dentry); ++ dev = obj->my_dev; ++ ++ yaffs_gross_lock(dev); ++ ++ yaffs_dev_to_lc(dev)->readdirProcess = current; ++ ++ offset = f->f_pos; ++ ++ sc = yaffs_NewSearch(obj); ++ if(!sc){ ++ retVal = -ENOMEM; ++ goto out; ++ } ++ ++ T(YAFFS_TRACE_OS, (TSTR("yaffs_readdir: starting at %d\n"), (int)offset)); ++ ++ if (offset == 0) { ++ T(YAFFS_TRACE_OS, ++ (TSTR("yaffs_readdir: entry . ino %d \n"), ++ (int)inode->i_ino)); ++ yaffs_gross_unlock(dev); ++ if (filldir(dirent, ".", 1, offset, inode->i_ino, DT_DIR) < 0){ ++ yaffs_gross_lock(dev); ++ goto out; ++ } ++ yaffs_gross_lock(dev); ++ offset++; ++ f->f_pos++; ++ } ++ if (offset == 1) { ++ T(YAFFS_TRACE_OS, ++ (TSTR("yaffs_readdir: entry .. ino %d \n"), ++ (int)f->f_dentry->d_parent->d_inode->i_ino)); ++ yaffs_gross_unlock(dev); ++ if (filldir(dirent, "..", 2, offset, ++ f->f_dentry->d_parent->d_inode->i_ino, DT_DIR) < 0){ ++ yaffs_gross_lock(dev); ++ goto out; ++ } ++ yaffs_gross_lock(dev); ++ offset++; ++ f->f_pos++; ++ } ++ ++ curoffs = 1; ++ ++ /* If the directory has changed since the open or last call to ++ readdir, rewind to after the 2 canned entries. */ ++ if (f->f_version != inode->i_version) { ++ offset = 2; ++ f->f_pos = offset; ++ f->f_version = inode->i_version; ++ } ++ ++ while(sc->nextReturn){ ++ curoffs++; ++ l = sc->nextReturn; ++ if (curoffs >= offset) { ++ int this_inode = yaffs_get_obj_inode(l); ++ int this_type = yaffs_get_obj_type(l); ++ ++ yaffs_get_obj_name(l, name, ++ YAFFS_MAX_NAME_LENGTH + 1); ++ T(YAFFS_TRACE_OS, ++ (TSTR("yaffs_readdir: %s inode %d\n"), ++ name, yaffs_get_obj_inode(l))); ++ ++ yaffs_gross_unlock(dev); ++ ++ if (filldir(dirent, ++ name, ++ strlen(name), ++ offset, ++ this_inode, ++ this_type) < 0){ ++ yaffs_gross_lock(dev); ++ goto out; ++ } ++ ++ yaffs_gross_lock(dev); ++ ++ offset++; ++ f->f_pos++; ++ } ++ yaffs_search_advance(sc); ++ } ++ ++out: ++ yaffs_search_end(sc); ++ yaffs_dev_to_lc(dev)->readdirProcess = NULL; ++ yaffs_gross_unlock(dev); ++ ++ return retVal; ++} ++ ++ ++ ++/* ++ * File creation. Allocate an inode, and we're done.. ++ */ ++ ++#if LINUX_VERSION_CODE < KERNEL_VERSION(2, 6, 29) ++#define YCRED(x) x ++#else ++#define YCRED(x) (x->cred) ++#endif ++ ++#if (LINUX_VERSION_CODE > KERNEL_VERSION(2, 5, 0)) ++static int yaffs_mknod(struct inode *dir, struct dentry *dentry, int mode, ++ dev_t rdev) ++#else ++static int yaffs_mknod(struct inode *dir, struct dentry *dentry, int mode, ++ int rdev) ++#endif ++{ ++ struct inode *inode; ++ ++ yaffs_obj_t *obj = NULL; ++ yaffs_dev_t *dev; ++ ++ yaffs_obj_t *parent = yaffs_InodeToObject(dir); ++ ++ int error = -ENOSPC; ++ uid_t uid = YCRED(current)->fsuid; ++ gid_t gid = (dir->i_mode & S_ISGID) ? dir->i_gid : YCRED(current)->fsgid; ++ ++ if ((dir->i_mode & S_ISGID) && S_ISDIR(mode)) ++ mode |= S_ISGID; ++ ++ if (parent) { ++ T(YAFFS_TRACE_OS, ++ (TSTR("yaffs_mknod: parent object %d type %d\n"), ++ parent->obj_id, parent->variant_type)); ++ } else { ++ T(YAFFS_TRACE_OS, ++ (TSTR("yaffs_mknod: could not get parent object\n"))); ++ return -EPERM; ++ } ++ ++ T(YAFFS_TRACE_OS, (TSTR("yaffs_mknod: making oject for %s, " ++ "mode %x dev %x\n"), ++ dentry->d_name.name, mode, rdev)); ++ ++ dev = parent->my_dev; ++ ++ yaffs_gross_lock(dev); ++ ++ switch (mode & S_IFMT) { ++ default: ++ /* Special (socket, fifo, device...) */ ++ T(YAFFS_TRACE_OS, (TSTR("yaffs_mknod: making special\n"))); ++#if (LINUX_VERSION_CODE > KERNEL_VERSION(2, 5, 0)) ++ obj = yaffs_create_special(parent, dentry->d_name.name, mode, uid, ++ gid, old_encode_dev(rdev)); ++#else ++ obj = yaffs_create_special(parent, dentry->d_name.name, mode, uid, ++ gid, rdev); ++#endif ++ break; ++ case S_IFREG: /* file */ ++ T(YAFFS_TRACE_OS, (TSTR("yaffs_mknod: making file\n"))); ++ obj = yaffs_create_file(parent, dentry->d_name.name, mode, uid, ++ gid); ++ break; ++ case S_IFDIR: /* directory */ ++ T(YAFFS_TRACE_OS, ++ (TSTR("yaffs_mknod: making directory\n"))); ++ obj = yaffs_create_dir(parent, dentry->d_name.name, mode, ++ uid, gid); ++ break; ++ case S_IFLNK: /* symlink */ ++ T(YAFFS_TRACE_OS, (TSTR("yaffs_mknod: making symlink\n"))); ++ obj = NULL; /* Do we ever get here? */ ++ break; ++ } ++ ++ /* Can not call yaffs_get_inode() with gross lock held */ ++ yaffs_gross_unlock(dev); ++ ++ if (obj) { ++ inode = yaffs_get_inode(dir->i_sb, mode, rdev, obj); ++ d_instantiate(dentry, inode); ++ update_dir_time(dir); ++ T(YAFFS_TRACE_OS, ++ (TSTR("yaffs_mknod created object %d count = %d\n"), ++ obj->obj_id, atomic_read(&inode->i_count))); ++ error = 0; ++ yaffs_fill_inode_from_obj(dir,parent); ++ } else { ++ T(YAFFS_TRACE_OS, ++ (TSTR("yaffs_mknod failed making object\n"))); ++ error = -ENOMEM; ++ } ++ ++ return error; ++} ++ ++static int yaffs_mkdir(struct inode *dir, struct dentry *dentry, int mode) ++{ ++ int retVal; ++ T(YAFFS_TRACE_OS, (TSTR("yaffs_mkdir\n"))); ++ retVal = yaffs_mknod(dir, dentry, mode | S_IFDIR, 0); ++ return retVal; ++} ++ ++#if (LINUX_VERSION_CODE > KERNEL_VERSION(2, 5, 0)) ++static int yaffs_create(struct inode *dir, struct dentry *dentry, int mode, ++ struct nameidata *n) ++#else ++static int yaffs_create(struct inode *dir, struct dentry *dentry, int mode) ++#endif ++{ ++ T(YAFFS_TRACE_OS,(TSTR("yaffs_create\n"))); ++ return yaffs_mknod(dir, dentry, mode | S_IFREG, 0); ++} ++ ++static int yaffs_unlink(struct inode *dir, struct dentry *dentry) ++{ ++ int retVal; ++ ++ yaffs_dev_t *dev; ++ yaffs_obj_t *obj; ++ ++ T(YAFFS_TRACE_OS, ++ (TSTR("yaffs_unlink %d:%s\n"), ++ (int)(dir->i_ino), ++ dentry->d_name.name)); ++ obj = yaffs_InodeToObject(dir); ++ dev = obj->my_dev; ++ ++ yaffs_gross_lock(dev); ++ ++ retVal = yaffs_unlinker(obj, dentry->d_name.name); ++ ++ if (retVal == YAFFS_OK) { ++ dentry->d_inode->i_nlink--; ++ dir->i_version++; ++ yaffs_gross_unlock(dev); ++ mark_inode_dirty(dentry->d_inode); ++ update_dir_time(dir); ++ return 0; ++ } ++ yaffs_gross_unlock(dev); ++ return -ENOTEMPTY; ++} ++ ++/* ++ * Create a link... ++ */ ++static int yaffs_link(struct dentry *old_dentry, struct inode *dir, ++ struct dentry *dentry) ++{ ++ struct inode *inode = old_dentry->d_inode; ++ yaffs_obj_t *obj = NULL; ++ yaffs_obj_t *link = NULL; ++ yaffs_dev_t *dev; ++ ++ T(YAFFS_TRACE_OS, (TSTR("yaffs_link\n"))); ++ ++ obj = yaffs_InodeToObject(inode); ++ dev = obj->my_dev; ++ ++ yaffs_gross_lock(dev); ++ ++ if (!S_ISDIR(inode->i_mode)) /* Don't link directories */ ++ link = yaffs_link_obj(yaffs_InodeToObject(dir), dentry->d_name.name, ++ obj); ++ ++ if (link) { ++ old_dentry->d_inode->i_nlink = yaffs_get_obj_link_count(obj); ++ d_instantiate(dentry, old_dentry->d_inode); ++ atomic_inc(&old_dentry->d_inode->i_count); ++ T(YAFFS_TRACE_OS, ++ (TSTR("yaffs_link link count %d i_count %d\n"), ++ old_dentry->d_inode->i_nlink, ++ atomic_read(&old_dentry->d_inode->i_count))); ++ } ++ ++ yaffs_gross_unlock(dev); ++ ++ if (link){ ++ update_dir_time(dir); ++ return 0; ++ } ++ ++ return -EPERM; ++} ++ ++static int yaffs_symlink(struct inode *dir, struct dentry *dentry, ++ const char *symname) ++{ ++ yaffs_obj_t *obj; ++ yaffs_dev_t *dev; ++ uid_t uid = YCRED(current)->fsuid; ++ gid_t gid = (dir->i_mode & S_ISGID) ? dir->i_gid : YCRED(current)->fsgid; ++ ++ T(YAFFS_TRACE_OS, (TSTR("yaffs_symlink\n"))); ++ ++ dev = yaffs_InodeToObject(dir)->my_dev; ++ yaffs_gross_lock(dev); ++ obj = yaffs_create_symlink(yaffs_InodeToObject(dir), dentry->d_name.name, ++ S_IFLNK | S_IRWXUGO, uid, gid, symname); ++ yaffs_gross_unlock(dev); ++ ++ if (obj) { ++ struct inode *inode; ++ ++ inode = yaffs_get_inode(dir->i_sb, obj->yst_mode, 0, obj); ++ d_instantiate(dentry, inode); ++ update_dir_time(dir); ++ T(YAFFS_TRACE_OS, (TSTR("symlink created OK\n"))); ++ return 0; ++ } else { ++ T(YAFFS_TRACE_OS, (TSTR("symlink not created\n"))); ++ } ++ ++ return -ENOMEM; ++} ++ ++#if (LINUX_VERSION_CODE > KERNEL_VERSION(2, 6, 34)) ++static int yaffs_sync_object(struct file *file, int datasync) ++#else ++static int yaffs_sync_object(struct file *file, struct dentry *dentry, ++ int datasync) ++#endif ++{ ++ ++ yaffs_obj_t *obj; ++ yaffs_dev_t *dev; ++#if (LINUX_VERSION_CODE > KERNEL_VERSION(2, 6, 34)) ++ struct dentry *dentry = file->f_path.dentry; ++#endif ++ ++ obj = yaffs_dentry_to_obj(dentry); ++ ++ dev = obj->my_dev; ++ ++ T(YAFFS_TRACE_OS | YAFFS_TRACE_SYNC, ++ (TSTR("yaffs_sync_object\n"))); ++ yaffs_gross_lock(dev); ++ yaffs_flush_file(obj, 1, datasync); ++ yaffs_gross_unlock(dev); ++ return 0; ++} ++ ++/* ++ * The VFS layer already does all the dentry stuff for rename. ++ * ++ * NB: POSIX says you can rename an object over an old object of the same name ++ */ ++static int yaffs_rename(struct inode *old_dir, struct dentry *old_dentry, ++ struct inode *new_dir, struct dentry *new_dentry) ++{ ++ yaffs_dev_t *dev; ++ int retVal = YAFFS_FAIL; ++ yaffs_obj_t *target; ++ ++ T(YAFFS_TRACE_OS, (TSTR("yaffs_rename\n"))); ++ dev = yaffs_InodeToObject(old_dir)->my_dev; ++ ++ yaffs_gross_lock(dev); ++ ++ /* Check if the target is an existing directory that is not empty. */ ++ target = yaffs_find_by_name(yaffs_InodeToObject(new_dir), ++ new_dentry->d_name.name); ++ ++ ++ ++ if (target && target->variant_type == YAFFS_OBJECT_TYPE_DIRECTORY && ++ !ylist_empty(&target->variant.dir_variant.children)) { ++ ++ T(YAFFS_TRACE_OS, (TSTR("target is non-empty dir\n"))); ++ ++ retVal = YAFFS_FAIL; ++ } else { ++ /* Now does unlinking internally using shadowing mechanism */ ++ T(YAFFS_TRACE_OS, (TSTR("calling yaffs_rename_obj\n"))); ++ ++ retVal = yaffs_rename_obj(yaffs_InodeToObject(old_dir), ++ old_dentry->d_name.name, ++ yaffs_InodeToObject(new_dir), ++ new_dentry->d_name.name); ++ } ++ yaffs_gross_unlock(dev); ++ ++ if (retVal == YAFFS_OK) { ++ if (target) { ++ new_dentry->d_inode->i_nlink--; ++ mark_inode_dirty(new_dentry->d_inode); ++ } ++ ++ update_dir_time(old_dir); ++ if(old_dir != new_dir) ++ update_dir_time(new_dir); ++ return 0; ++ } else { ++ return -ENOTEMPTY; ++ } ++} ++ ++static int yaffs_setattr(struct dentry *dentry, struct iattr *attr) ++{ ++ struct inode *inode = dentry->d_inode; ++ int error = 0; ++ yaffs_dev_t *dev; ++ ++ T(YAFFS_TRACE_OS, ++ (TSTR("yaffs_setattr of object %d\n"), ++ yaffs_InodeToObject(inode)->obj_id)); ++ ++ /* Fail if a requested resize >= 2GB */ ++ if (attr->ia_valid & ATTR_SIZE && ++ (attr->ia_size >> 31)) ++ error = -EINVAL; ++ ++ if (error == 0) ++ error = inode_change_ok(inode, attr); ++ if (error == 0) { ++ int result; ++ if (!error){ ++ error = yaffs_vfs_setattr(inode, attr); ++ T(YAFFS_TRACE_OS,(TSTR("inode_setattr called\n"))); ++ if (attr->ia_valid & ATTR_SIZE){ ++ yaffs_vfs_setsize(inode,attr->ia_size); ++ inode->i_blocks = (inode->i_size + 511) >> 9; ++ } ++ } ++ dev = yaffs_InodeToObject(inode)->my_dev; ++ if (attr->ia_valid & ATTR_SIZE){ ++ T(YAFFS_TRACE_OS,(TSTR("resize to %d(%x)\n"), ++ (int)(attr->ia_size),(int)(attr->ia_size))); ++ } ++ yaffs_gross_lock(dev); ++ result = yaffs_set_attribs(yaffs_InodeToObject(inode), attr); ++ if(result == YAFFS_OK) { ++ error = 0; ++ } else { ++ error = -EPERM; ++ } ++ yaffs_gross_unlock(dev); ++ ++ } ++ ++ T(YAFFS_TRACE_OS, ++ (TSTR("yaffs_setattr done returning %d\n"),error)); ++ ++ return error; ++} ++ ++#ifdef CONFIG_YAFFS_XATTR ++int yaffs_setxattr(struct dentry *dentry, const char *name, ++ const void *value, size_t size, int flags) ++{ ++ struct inode *inode = dentry->d_inode; ++ int error = 0; ++ yaffs_dev_t *dev; ++ yaffs_obj_t *obj = yaffs_InodeToObject(inode); ++ ++ T(YAFFS_TRACE_OS, ++ (TSTR("yaffs_setxattr of object %d\n"), ++ obj->obj_id)); ++ ++ ++ if (error == 0) { ++ int result; ++ dev = obj->my_dev; ++ yaffs_gross_lock(dev); ++ result = yaffs_set_xattrib(obj, name, value, size, flags); ++ if(result == YAFFS_OK) ++ error = 0; ++ else if(result < 0) ++ error = result; ++ yaffs_gross_unlock(dev); ++ ++ } ++ T(YAFFS_TRACE_OS, ++ (TSTR("yaffs_setxattr done returning %d\n"),error)); ++ ++ return error; ++} ++ ++ ++ssize_t yaffs_getxattr(struct dentry *dentry, const char *name, void *buff, ++ size_t size) ++{ ++ struct inode *inode = dentry->d_inode; ++ int error = 0; ++ yaffs_dev_t *dev; ++ yaffs_obj_t *obj = yaffs_InodeToObject(inode); ++ ++ T(YAFFS_TRACE_OS, ++ (TSTR("yaffs_getxattr \"%s\" from object %d\n"), ++ name, obj->obj_id)); ++ ++ if (error == 0) { ++ dev = obj->my_dev; ++ yaffs_gross_lock(dev); ++ error = yaffs_get_xattrib(obj, name, buff, size); ++ yaffs_gross_unlock(dev); ++ ++ } ++ T(YAFFS_TRACE_OS, ++ (TSTR("yaffs_getxattr done returning %d\n"),error)); ++ ++ return error; ++} ++ ++int yaffs_removexattr(struct dentry *dentry, const char *name) ++{ ++ struct inode *inode = dentry->d_inode; ++ int error = 0; ++ yaffs_dev_t *dev; ++ yaffs_obj_t *obj = yaffs_InodeToObject(inode); ++ ++ T(YAFFS_TRACE_OS, ++ (TSTR("yaffs_removexattr of object %d\n"), ++ obj->obj_id)); ++ ++ ++ if (error == 0) { ++ int result; ++ dev = obj->my_dev; ++ yaffs_gross_lock(dev); ++ result = yaffs_remove_xattrib(obj, name); ++ if(result == YAFFS_OK) ++ error = 0; ++ else if(result < 0) ++ error = result; ++ yaffs_gross_unlock(dev); ++ ++ } ++ T(YAFFS_TRACE_OS, ++ (TSTR("yaffs_removexattr done returning %d\n"),error)); ++ ++ return error; ++} ++ ++ssize_t yaffs_listxattr(struct dentry *dentry, char *buff, size_t size) ++{ ++ struct inode *inode = dentry->d_inode; ++ int error = 0; ++ yaffs_dev_t *dev; ++ yaffs_obj_t *obj = yaffs_InodeToObject(inode); ++ ++ T(YAFFS_TRACE_OS, ++ (TSTR("yaffs_listxattr of object %d\n"), ++ obj->obj_id)); ++ ++ ++ if (error == 0) { ++ dev = obj->my_dev; ++ yaffs_gross_lock(dev); ++ error = yaffs_list_xattrib(obj, buff, size); ++ yaffs_gross_unlock(dev); ++ ++ } ++ T(YAFFS_TRACE_OS, ++ (TSTR("yaffs_listxattr done returning %d\n"),error)); ++ ++ return error; ++} ++ ++#endif ++ ++ ++#if (LINUX_VERSION_CODE > KERNEL_VERSION(2, 6, 17)) ++static int yaffs_statfs(struct dentry *dentry, struct kstatfs *buf) ++{ ++ yaffs_dev_t *dev = yaffs_dentry_to_obj(dentry)->my_dev; ++ struct super_block *sb = dentry->d_sb; ++#elif (LINUX_VERSION_CODE > KERNEL_VERSION(2, 5, 0)) ++static int yaffs_statfs(struct super_block *sb, struct kstatfs *buf) ++{ ++ yaffs_dev_t *dev = yaffs_SuperToDevice(sb); ++#else ++static int yaffs_statfs(struct super_block *sb, struct statfs *buf) ++{ ++ yaffs_dev_t *dev = yaffs_SuperToDevice(sb); ++#endif ++ ++ T(YAFFS_TRACE_OS, (TSTR("yaffs_statfs\n"))); ++ ++ yaffs_gross_lock(dev); ++ ++ buf->f_type = YAFFS_MAGIC; ++ buf->f_bsize = sb->s_blocksize; ++ buf->f_namelen = 255; ++ ++ if (dev->data_bytes_per_chunk & (dev->data_bytes_per_chunk - 1)) { ++ /* Do this if chunk size is not a power of 2 */ ++ ++ uint64_t bytesInDev; ++ uint64_t bytesFree; ++ ++ bytesInDev = ((uint64_t)((dev->param.end_block - dev->param.start_block + 1))) * ++ ((uint64_t)(dev->param.chunks_per_block * dev->data_bytes_per_chunk)); ++ ++ do_div(bytesInDev, sb->s_blocksize); /* bytesInDev becomes the number of blocks */ ++ buf->f_blocks = bytesInDev; ++ ++ bytesFree = ((uint64_t)(yaffs_get_n_free_chunks(dev))) * ++ ((uint64_t)(dev->data_bytes_per_chunk)); ++ ++ do_div(bytesFree, sb->s_blocksize); ++ ++ buf->f_bfree = bytesFree; ++ ++ } else if (sb->s_blocksize > dev->data_bytes_per_chunk) { ++ ++ buf->f_blocks = ++ (dev->param.end_block - dev->param.start_block + 1) * ++ dev->param.chunks_per_block / ++ (sb->s_blocksize / dev->data_bytes_per_chunk); ++ buf->f_bfree = ++ yaffs_get_n_free_chunks(dev) / ++ (sb->s_blocksize / dev->data_bytes_per_chunk); ++ } else { ++ buf->f_blocks = ++ (dev->param.end_block - dev->param.start_block + 1) * ++ dev->param.chunks_per_block * ++ (dev->data_bytes_per_chunk / sb->s_blocksize); ++ ++ buf->f_bfree = ++ yaffs_get_n_free_chunks(dev) * ++ (dev->data_bytes_per_chunk / sb->s_blocksize); ++ } ++ ++ buf->f_files = 0; ++ buf->f_ffree = 0; ++ buf->f_bavail = buf->f_bfree; ++ ++ yaffs_gross_unlock(dev); ++ return 0; ++} ++ ++ ++ ++static void yaffs_flush_inodes(struct super_block *sb) ++{ ++ struct inode *iptr; ++ yaffs_obj_t *obj; ++ ++ list_for_each_entry(iptr,&sb->s_inodes, i_sb_list){ ++ obj = yaffs_InodeToObject(iptr); ++ if(obj){ ++ T(YAFFS_TRACE_OS, (TSTR("flushing obj %d\n"), ++ obj->obj_id)); ++ yaffs_flush_file(obj,1,0); ++ } ++ } ++} ++ ++ ++static void yaffs_flush_super(struct super_block *sb, int do_checkpoint) ++{ ++ yaffs_dev_t *dev = yaffs_SuperToDevice(sb); ++ if(!dev) ++ return; ++ ++ yaffs_flush_inodes(sb); ++ yaffs_update_dirty_dirs(dev); ++ yaffs_flush_whole_cache(dev); ++ if(do_checkpoint) ++ yaffs_checkpoint_save(dev); ++} ++ ++ ++static unsigned yaffs_bg_gc_urgency(yaffs_dev_t *dev) ++{ ++ unsigned erasedChunks = dev->n_erased_blocks * dev->param.chunks_per_block; ++ struct yaffs_LinuxContext *context = yaffs_dev_to_lc(dev); ++ unsigned scatteredFree = 0; /* Free chunks not in an erased block */ ++ ++ if(erasedChunks < dev->n_free_chunks) ++ scatteredFree = (dev->n_free_chunks - erasedChunks); ++ ++ if(!context->bgRunning) ++ return 0; ++ else if(scatteredFree < (dev->param.chunks_per_block * 2)) ++ return 0; ++ else if(erasedChunks > dev->n_free_chunks/2) ++ return 0; ++ else if(erasedChunks > dev->n_free_chunks/4) ++ return 1; ++ else ++ return 2; ++} ++ ++static int yaffs_do_sync_fs(struct super_block *sb, ++ int request_checkpoint) ++{ ++ ++ yaffs_dev_t *dev = yaffs_SuperToDevice(sb); ++ unsigned int oneshot_checkpoint = (yaffs_auto_checkpoint & 4); ++ unsigned gc_urgent = yaffs_bg_gc_urgency(dev); ++ int do_checkpoint; ++ ++ T(YAFFS_TRACE_OS | YAFFS_TRACE_SYNC | YAFFS_TRACE_BACKGROUND, ++ (TSTR("yaffs_do_sync_fs: gc-urgency %d %s %s%s\n"), ++ gc_urgent, ++ sb->s_dirt ? "dirty" : "clean", ++ request_checkpoint ? "checkpoint requested" : "no checkpoint", ++ oneshot_checkpoint ? " one-shot" : "" )); ++ ++ yaffs_gross_lock(dev); ++ do_checkpoint = ((request_checkpoint && !gc_urgent) || ++ oneshot_checkpoint) && ++ !dev->is_checkpointed; ++ ++ if (sb->s_dirt || do_checkpoint) { ++ yaffs_flush_super(sb, !dev->is_checkpointed && do_checkpoint); ++ sb->s_dirt = 0; ++ if(oneshot_checkpoint) ++ yaffs_auto_checkpoint &= ~4; ++ } ++ yaffs_gross_unlock(dev); ++ ++ return 0; ++} ++ ++/* ++ * yaffs background thread functions . ++ * yaffs_bg_thread_fn() the thread function ++ * yaffs_bg_start() launches the background thread. ++ * yaffs_bg_stop() cleans up the background thread. ++ * ++ * NB: ++ * The thread should only run after the yaffs is initialised ++ * The thread should be stopped before yaffs is unmounted. ++ * The thread should not do any writing while the fs is in read only. ++ */ ++ ++#ifdef YAFFS_COMPILE_BACKGROUND ++ ++void yaffs_background_waker(unsigned long data) ++{ ++ wake_up_process((struct task_struct *)data); ++} ++ ++static int yaffs_bg_thread_fn(void *data) ++{ ++ yaffs_dev_t *dev = (yaffs_dev_t *)data; ++ struct yaffs_LinuxContext *context = yaffs_dev_to_lc(dev); ++ unsigned long now = jiffies; ++ unsigned long next_dir_update = now; ++ unsigned long next_gc = now; ++ unsigned long expires; ++ unsigned int urgency; ++ ++ int gcResult; ++ struct timer_list timer; ++ ++ T(YAFFS_TRACE_BACKGROUND, ++ (TSTR("yaffs_background starting for dev %p\n"), ++ (void *)dev)); ++ ++#ifdef YAFFS_COMPILE_FREEZER ++ set_freezable(); ++#endif ++ while(context->bgRunning){ ++ T(YAFFS_TRACE_BACKGROUND, ++ (TSTR("yaffs_background\n"))); ++ ++ if(kthread_should_stop()) ++ break; ++ ++#ifdef YAFFS_COMPILE_FREEZER ++ if(try_to_freeze()) ++ continue; ++#endif ++ yaffs_gross_lock(dev); ++ ++ now = jiffies; ++ ++ if(time_after(now, next_dir_update) && yaffs_bg_enable){ ++ yaffs_update_dirty_dirs(dev); ++ next_dir_update = now + HZ; ++ } ++ ++ if(time_after(now,next_gc) && yaffs_bg_enable){ ++ if(!dev->is_checkpointed){ ++ urgency = yaffs_bg_gc_urgency(dev); ++ gcResult = yaffs_bg_gc(dev, urgency); ++ if(urgency > 1) ++ next_gc = now + HZ/20+1; ++ else if(urgency > 0) ++ next_gc = now + HZ/10+1; ++ else ++ next_gc = now + HZ * 2; ++ } else /* ++ * gc not running so set to next_dir_update ++ * to cut down on wake ups ++ */ ++ next_gc = next_dir_update; ++ } ++ yaffs_gross_unlock(dev); ++#if 1 ++ expires = next_dir_update; ++ if (time_before(next_gc,expires)) ++ expires = next_gc; ++ if(time_before(expires,now)) ++ expires = now + HZ; ++ ++ Y_INIT_TIMER(&timer); ++ timer.expires = expires+1; ++ timer.data = (unsigned long) current; ++ timer.function = yaffs_background_waker; ++ ++ set_current_state(TASK_INTERRUPTIBLE); ++ add_timer(&timer); ++ schedule(); ++ del_timer_sync(&timer); ++#else ++ msleep(10); ++#endif ++ } ++ ++ return 0; ++} ++ ++static int yaffs_bg_start(yaffs_dev_t *dev) ++{ ++ int retval = 0; ++ struct yaffs_LinuxContext *context = yaffs_dev_to_lc(dev); ++ ++ if(dev->read_only) ++ return -1; ++ ++ context->bgRunning = 1; ++ ++ context->bgThread = kthread_run(yaffs_bg_thread_fn, ++ (void *)dev,"yaffs-bg-%d",context->mount_id); ++ ++ if(IS_ERR(context->bgThread)){ ++ retval = PTR_ERR(context->bgThread); ++ context->bgThread = NULL; ++ context->bgRunning = 0; ++ } ++ return retval; ++} ++ ++static void yaffs_bg_stop(yaffs_dev_t *dev) ++{ ++ struct yaffs_LinuxContext *ctxt = yaffs_dev_to_lc(dev); ++ ++ ctxt->bgRunning = 0; ++ ++ if( ctxt->bgThread){ ++ kthread_stop(ctxt->bgThread); ++ ctxt->bgThread = NULL; ++ } ++} ++#else ++static int yaffs_bg_thread_fn(void *data) ++{ ++ return 0; ++} ++ ++static int yaffs_bg_start(yaffs_dev_t *dev) ++{ ++ return 0; ++} ++ ++static void yaffs_bg_stop(yaffs_dev_t *dev) ++{ ++} ++#endif ++ ++ ++#if (LINUX_VERSION_CODE > KERNEL_VERSION(2, 6, 17)) ++static void yaffs_write_super(struct super_block *sb) ++#else ++static int yaffs_write_super(struct super_block *sb) ++#endif ++{ ++ unsigned request_checkpoint = (yaffs_auto_checkpoint >= 2); ++ ++ T(YAFFS_TRACE_OS | YAFFS_TRACE_SYNC | YAFFS_TRACE_BACKGROUND, ++ (TSTR("yaffs_write_super%s\n"), ++ request_checkpoint ? " checkpt" : "")); ++ ++ yaffs_do_sync_fs(sb, request_checkpoint); ++ ++#if (LINUX_VERSION_CODE < KERNEL_VERSION(2, 6, 18)) ++ return 0; ++#endif ++} ++ ++ ++#if (LINUX_VERSION_CODE > KERNEL_VERSION(2, 6, 17)) ++static int yaffs_sync_fs(struct super_block *sb, int wait) ++#else ++static int yaffs_sync_fs(struct super_block *sb) ++#endif ++{ ++ unsigned request_checkpoint = (yaffs_auto_checkpoint >= 1); ++ ++ T(YAFFS_TRACE_OS | YAFFS_TRACE_SYNC, ++ (TSTR("yaffs_sync_fs%s\n"), ++ request_checkpoint ? " checkpt" : "")); ++ ++ yaffs_do_sync_fs(sb, request_checkpoint); ++ ++ return 0; ++} ++ ++#ifdef YAFFS_USE_OWN_IGET ++ ++static struct inode *yaffs_iget(struct super_block *sb, unsigned long ino) ++{ ++ struct inode *inode; ++ yaffs_obj_t *obj; ++ yaffs_dev_t *dev = yaffs_SuperToDevice(sb); ++ ++ T(YAFFS_TRACE_OS, ++ (TSTR("yaffs_iget for %lu\n"), ino)); ++ ++ inode = iget_locked(sb, ino); ++ if (!inode) ++ return ERR_PTR(-ENOMEM); ++ if (!(inode->i_state & I_NEW)) ++ return inode; ++ ++ /* NB This is called as a side effect of other functions, but ++ * we had to release the lock to prevent deadlocks, so ++ * need to lock again. ++ */ ++ ++ yaffs_gross_lock(dev); ++ ++ obj = yaffs_find_by_number(dev, inode->i_ino); ++ ++ yaffs_fill_inode_from_obj(inode, obj); ++ ++ yaffs_gross_unlock(dev); ++ ++ unlock_new_inode(inode); ++ return inode; ++} ++ ++#else ++ ++static void yaffs_read_inode(struct inode *inode) ++{ ++ /* NB This is called as a side effect of other functions, but ++ * we had to release the lock to prevent deadlocks, so ++ * need to lock again. ++ */ ++ ++ yaffs_obj_t *obj; ++ yaffs_dev_t *dev = yaffs_SuperToDevice(inode->i_sb); ++ ++ T(YAFFS_TRACE_OS, ++ (TSTR("yaffs_read_inode for %d\n"), (int)inode->i_ino)); ++ ++ if(current != yaffs_dev_to_lc(dev)->readdirProcess) ++ yaffs_gross_lock(dev); ++ ++ obj = yaffs_find_by_number(dev, inode->i_ino); ++ ++ yaffs_fill_inode_from_obj(inode, obj); ++ ++ if(current != yaffs_dev_to_lc(dev)->readdirProcess) ++ yaffs_gross_unlock(dev); ++} ++ ++#endif ++ ++static YLIST_HEAD(yaffs_context_list); ++struct semaphore yaffs_context_lock; ++ ++static void yaffs_put_super(struct super_block *sb) ++{ ++ yaffs_dev_t *dev = yaffs_SuperToDevice(sb); ++ ++ T(YAFFS_TRACE_OS, (TSTR("yaffs_put_super\n"))); ++ ++ T(YAFFS_TRACE_OS | YAFFS_TRACE_BACKGROUND, ++ (TSTR("Shutting down yaffs background thread\n"))); ++ yaffs_bg_stop(dev); ++ T(YAFFS_TRACE_OS | YAFFS_TRACE_BACKGROUND, ++ (TSTR("yaffs background thread shut down\n"))); ++ ++ yaffs_gross_lock(dev); ++ ++ yaffs_flush_super(sb,1); ++ ++ if (yaffs_dev_to_lc(dev)->putSuperFunc) ++ yaffs_dev_to_lc(dev)->putSuperFunc(sb); ++ ++ ++ yaffs_deinitialise(dev); ++ ++ yaffs_gross_unlock(dev); ++ ++ down(&yaffs_context_lock); ++ ylist_del_init(&(yaffs_dev_to_lc(dev)->contextList)); ++ up(&yaffs_context_lock); ++ ++ if (yaffs_dev_to_lc(dev)->spareBuffer) { ++ YFREE(yaffs_dev_to_lc(dev)->spareBuffer); ++ yaffs_dev_to_lc(dev)->spareBuffer = NULL; ++ } ++ ++ kfree(dev); ++} ++ ++ ++static void yaffs_MTDPutSuper(struct super_block *sb) ++{ ++ struct mtd_info *mtd = yaffs_dev_to_mtd(yaffs_SuperToDevice(sb)); ++ ++ if (mtd->sync) ++ mtd->sync(mtd); ++ ++ put_mtd_device(mtd); ++} ++ ++ ++static void yaffs_touch_super(yaffs_dev_t *dev) ++{ ++ struct super_block *sb = yaffs_dev_to_lc(dev)->superBlock; ++ ++ T(YAFFS_TRACE_OS, (TSTR("yaffs_touch_super() sb = %p\n"), sb)); ++ if (sb) ++ sb->s_dirt = 1; ++} ++ ++typedef struct { ++ int inband_tags; ++ int skip_checkpoint_read; ++ int skip_checkpoint_write; ++ int no_cache; ++ int tags_ecc_on; ++ int tags_ecc_overridden; ++ int lazy_loading_enabled; ++ int lazy_loading_overridden; ++ int empty_lost_and_found; ++ int empty_lost_and_found_overridden; ++} yaffs_options; ++ ++#define MAX_OPT_LEN 30 ++static int yaffs_parse_options(yaffs_options *options, const char *options_str) ++{ ++ char cur_opt[MAX_OPT_LEN + 1]; ++ int p; ++ int error = 0; ++ ++ /* Parse through the options which is a comma seperated list */ ++ ++ while (options_str && *options_str && !error) { ++ memset(cur_opt, 0, MAX_OPT_LEN + 1); ++ p = 0; ++ ++ while(*options_str == ',') ++ options_str++; ++ ++ while (*options_str && *options_str != ',') { ++ if (p < MAX_OPT_LEN) { ++ cur_opt[p] = *options_str; ++ p++; ++ } ++ options_str++; ++ } ++ ++ if (!strcmp(cur_opt, "inband-tags")) ++ options->inband_tags = 1; ++ else if (!strcmp(cur_opt, "tags-ecc-off")){ ++ options->tags_ecc_on = 0; ++ options->tags_ecc_overridden=1; ++ } else if (!strcmp(cur_opt, "tags-ecc-on")){ ++ options->tags_ecc_on = 1; ++ options->tags_ecc_overridden = 1; ++ } else if (!strcmp(cur_opt, "lazy-loading-off")){ ++ options->lazy_loading_enabled = 0; ++ options->lazy_loading_overridden=1; ++ } else if (!strcmp(cur_opt, "lazy-loading-on")){ ++ options->lazy_loading_enabled = 1; ++ options->lazy_loading_overridden = 1; ++ } else if (!strcmp(cur_opt, "empty-lost-and-found-off")){ ++ options->empty_lost_and_found = 0; ++ options->empty_lost_and_found_overridden=1; ++ } else if (!strcmp(cur_opt, "empty-lost-and-found-on")){ ++ options->empty_lost_and_found = 1; ++ options->empty_lost_and_found_overridden=1; ++ } else if (!strcmp(cur_opt, "no-cache")) ++ options->no_cache = 1; ++ else if (!strcmp(cur_opt, "no-checkpoint-read")) ++ options->skip_checkpoint_read = 1; ++ else if (!strcmp(cur_opt, "no-checkpoint-write")) ++ options->skip_checkpoint_write = 1; ++ else if (!strcmp(cur_opt, "no-checkpoint")) { ++ options->skip_checkpoint_read = 1; ++ options->skip_checkpoint_write = 1; ++ } else { ++ printk(KERN_INFO "yaffs: Bad mount option \"%s\"\n", ++ cur_opt); ++ error = 1; ++ } ++ } ++ ++ return error; ++} ++ ++static struct super_block *yaffs_internal_read_super(int yaffs_version, ++ struct super_block *sb, ++ void *data, int silent) ++{ ++ int nBlocks; ++ struct inode *inode = NULL; ++ struct dentry *root; ++ yaffs_dev_t *dev = 0; ++ char devname_buf[BDEVNAME_SIZE + 1]; ++ struct mtd_info *mtd; ++ int err; ++ char *data_str = (char *)data; ++ struct yaffs_LinuxContext *context = NULL; ++ yaffs_param_t *param; ++ ++ int read_only = 0; ++ ++ yaffs_options options; ++ ++ unsigned mount_id; ++ int found; ++ struct yaffs_LinuxContext *context_iterator; ++ struct ylist_head *l; ++ ++ sb->s_magic = YAFFS_MAGIC; ++ sb->s_op = &yaffs_super_ops; ++ sb->s_flags |= MS_NOATIME; ++ ++ read_only =((sb->s_flags & MS_RDONLY) != 0); ++ ++ ++#ifdef YAFFS_COMPILE_EXPORTFS ++ sb->s_export_op = &yaffs_export_ops; ++#endif ++ ++ if (!sb) ++ printk(KERN_INFO "yaffs: sb is NULL\n"); ++ else if (!sb->s_dev) ++ printk(KERN_INFO "yaffs: sb->s_dev is NULL\n"); ++ else if (!yaffs_devname(sb, devname_buf)) ++ printk(KERN_INFO "yaffs: devname is NULL\n"); ++ else ++ printk(KERN_INFO "yaffs: dev is %d name is \"%s\" %s\n", ++ sb->s_dev, ++ yaffs_devname(sb, devname_buf), ++ read_only ? "ro" : "rw"); ++ ++ if (!data_str) ++ data_str = ""; ++ ++ printk(KERN_INFO "yaffs: passed flags \"%s\"\n", data_str); ++ ++ memset(&options, 0, sizeof(options)); ++ ++ if (yaffs_parse_options(&options, data_str)) { ++ /* Option parsing failed */ ++ return NULL; ++ } ++ ++ ++ sb->s_blocksize = PAGE_CACHE_SIZE; ++ sb->s_blocksize_bits = PAGE_CACHE_SHIFT; ++ ++ T(YAFFS_TRACE_OS, ++ (TSTR("yaffs_read_super: Using yaffs%d\n"), yaffs_version)); ++ T(YAFFS_TRACE_OS, ++ (TSTR("yaffs_read_super: block size %d\n"), ++ (int)(sb->s_blocksize))); ++ ++ T(YAFFS_TRACE_ALWAYS, ++ (TSTR("yaffs: Attempting MTD mount of %u.%u,\"%s\"\n"), ++ MAJOR(sb->s_dev), MINOR(sb->s_dev), ++ yaffs_devname(sb, devname_buf))); ++ ++ /* Check it's an mtd device..... */ ++ if (MAJOR(sb->s_dev) != MTD_BLOCK_MAJOR) ++ return NULL; /* This isn't an mtd device */ ++ ++ /* Get the device */ ++ mtd = get_mtd_device(NULL, MINOR(sb->s_dev)); ++ if (!mtd) { ++ T(YAFFS_TRACE_ALWAYS, ++ (TSTR("yaffs: MTD device #%u doesn't appear to exist\n"), ++ MINOR(sb->s_dev))); ++ return NULL; ++ } ++ /* Check it's NAND */ ++ if (mtd->type != MTD_NANDFLASH) { ++ T(YAFFS_TRACE_ALWAYS, ++ (TSTR("yaffs: MTD device is not NAND it's type %d\n"), ++ mtd->type)); ++ return NULL; ++ } ++ ++ T(YAFFS_TRACE_OS, (TSTR(" erase %p\n"), mtd->erase)); ++ T(YAFFS_TRACE_OS, (TSTR(" read %p\n"), mtd->read)); ++ T(YAFFS_TRACE_OS, (TSTR(" write %p\n"), mtd->write)); ++ T(YAFFS_TRACE_OS, (TSTR(" readoob %p\n"), mtd->read_oob)); ++ T(YAFFS_TRACE_OS, (TSTR(" writeoob %p\n"), mtd->write_oob)); ++ T(YAFFS_TRACE_OS, (TSTR(" block_isbad %p\n"), mtd->block_isbad)); ++ T(YAFFS_TRACE_OS, (TSTR(" block_markbad %p\n"), mtd->block_markbad)); ++ T(YAFFS_TRACE_OS, (TSTR(" %s %d\n"), WRITE_SIZE_STR, WRITE_SIZE(mtd))); ++ T(YAFFS_TRACE_OS, (TSTR(" oobsize %d\n"), mtd->oobsize)); ++ T(YAFFS_TRACE_OS, (TSTR(" erasesize %d\n"), mtd->erasesize)); ++#if LINUX_VERSION_CODE < KERNEL_VERSION(2, 6, 29) ++ T(YAFFS_TRACE_OS, (TSTR(" size %u\n"), mtd->size)); ++#else ++ T(YAFFS_TRACE_OS, (TSTR(" size %lld\n"), mtd->size)); ++#endif ++ ++#ifdef CONFIG_YAFFS_AUTO_YAFFS2 ++ ++ if (yaffs_version == 1 && WRITE_SIZE(mtd) >= 2048) { ++ T(YAFFS_TRACE_ALWAYS, ++ (TSTR("yaffs: auto selecting yaffs2\n"))); ++ yaffs_version = 2; ++ } ++ ++ /* Added NCB 26/5/2006 for completeness */ ++ if (yaffs_version == 2 && !options.inband_tags && WRITE_SIZE(mtd) == 512) { ++ T(YAFFS_TRACE_ALWAYS, ++ (TSTR("yaffs: auto selecting yaffs1\n"))); ++ yaffs_version = 1; ++ } ++ ++#endif ++ ++ if (yaffs_version == 2) { ++ /* Check for version 2 style functions */ ++ if (!mtd->erase || ++ !mtd->block_isbad || ++ !mtd->block_markbad || ++ !mtd->read || ++ !mtd->write || ++#if (LINUX_VERSION_CODE > KERNEL_VERSION(2, 6, 17)) ++ !mtd->read_oob || !mtd->write_oob) { ++#else ++ !mtd->write_ecc || ++ !mtd->read_ecc || !mtd->read_oob || !mtd->write_oob) { ++#endif ++ T(YAFFS_TRACE_ALWAYS, ++ (TSTR("yaffs: MTD device does not support required " ++ "functions\n"))); ++ return NULL; ++ } ++ ++ if ((WRITE_SIZE(mtd) < YAFFS_MIN_YAFFS2_CHUNK_SIZE || ++ mtd->oobsize < YAFFS_MIN_YAFFS2_SPARE_SIZE) && ++ !options.inband_tags) { ++ T(YAFFS_TRACE_ALWAYS, ++ (TSTR("yaffs: MTD device does not have the " ++ "right page sizes\n"))); ++ return NULL; ++ } ++ } else { ++ /* Check for V1 style functions */ ++ if (!mtd->erase || ++ !mtd->read || ++ !mtd->write || ++#if (LINUX_VERSION_CODE > KERNEL_VERSION(2, 6, 17)) ++ !mtd->read_oob || !mtd->write_oob) { ++#else ++ !mtd->write_ecc || ++ !mtd->read_ecc || !mtd->read_oob || !mtd->write_oob) { ++#endif ++ T(YAFFS_TRACE_ALWAYS, ++ (TSTR("yaffs: MTD device does not support required " ++ "functions\n"))); ++ return NULL; ++ } ++ ++ if (WRITE_SIZE(mtd) < YAFFS_BYTES_PER_CHUNK || ++ mtd->oobsize != YAFFS_BYTES_PER_SPARE) { ++ T(YAFFS_TRACE_ALWAYS, ++ (TSTR("yaffs: MTD device does not support have the " ++ "right page sizes\n"))); ++ return NULL; ++ } ++ } ++ ++ /* OK, so if we got here, we have an MTD that's NAND and looks ++ * like it has the right capabilities ++ * Set the yaffs_dev_t up for mtd ++ */ ++ ++ if (!read_only && !(mtd->flags & MTD_WRITEABLE)){ ++ read_only = 1; ++ printk(KERN_INFO "yaffs: mtd is read only, setting superblock read only"); ++ sb->s_flags |= MS_RDONLY; ++ } ++ ++ dev = kmalloc(sizeof(yaffs_dev_t), GFP_KERNEL); ++ context = kmalloc(sizeof(struct yaffs_LinuxContext),GFP_KERNEL); ++ ++ if(!dev || !context ){ ++ if(dev) ++ kfree(dev); ++ if(context) ++ kfree(context); ++ dev = NULL; ++ context = NULL; ++ } ++ ++ if (!dev) { ++ /* Deep shit could not allocate device structure */ ++ T(YAFFS_TRACE_ALWAYS, ++ (TSTR("yaffs_read_super: Failed trying to allocate " ++ "yaffs_dev_t. \n"))); ++ return NULL; ++ } ++ memset(dev, 0, sizeof(yaffs_dev_t)); ++ param = &(dev->param); ++ ++ memset(context,0,sizeof(struct yaffs_LinuxContext)); ++ dev->os_context = context; ++ YINIT_LIST_HEAD(&(context->contextList)); ++ context->dev = dev; ++ context->superBlock = sb; ++ ++ dev->read_only = read_only; ++ ++#if (LINUX_VERSION_CODE > KERNEL_VERSION(2, 5, 0)) ++ sb->s_fs_info = dev; ++#else ++ sb->u.generic_sbp = dev; ++#endif ++ ++ dev->driver_context = mtd; ++ param->name = mtd->name; ++ ++ /* Set up the memory size parameters.... */ ++ ++ nBlocks = YCALCBLOCKS(mtd->size, (YAFFS_CHUNKS_PER_BLOCK * YAFFS_BYTES_PER_CHUNK)); ++ ++ param->start_block = 0; ++ param->end_block = nBlocks - 1; ++ param->chunks_per_block = YAFFS_CHUNKS_PER_BLOCK; ++ param->total_bytes_per_chunk = YAFFS_BYTES_PER_CHUNK; ++ param->n_reserved_blocks = 5; ++ param->n_caches = (options.no_cache) ? 0 : 10; ++ param->inband_tags = options.inband_tags; ++ ++#ifdef CONFIG_YAFFS_DISABLE_LAZY_LOAD ++ param->disable_lazy_load = 1; ++#endif ++#ifdef CONFIG_YAFFS_XATTR ++ param->enable_xattr = 1; ++#endif ++ if(options.lazy_loading_overridden) ++ param->disable_lazy_load = !options.lazy_loading_enabled; ++ ++#ifdef CONFIG_YAFFS_DISABLE_TAGS_ECC ++ param->no_tags_ecc = 1; ++#endif ++ ++#ifdef CONFIG_YAFFS_DISABLE_BACKGROUND ++#else ++ param->defered_dir_update = 1; ++#endif ++ ++ if(options.tags_ecc_overridden) ++ param->no_tags_ecc = !options.tags_ecc_on; ++ ++#ifdef CONFIG_YAFFS_EMPTY_LOST_AND_FOUND ++ param->empty_lost_n_found = 1; ++#endif ++ ++#ifdef CONFIG_YAFFS_DISABLE_BLOCK_REFRESHING ++ param->refresh_period = 0; ++#else ++ param->refresh_period = 500; ++#endif ++ ++#ifdef CONFIG_YAFFS__ALWAYS_CHECK_CHUNK_ERASED ++ param->always_check_erased = 1; ++#endif ++ ++ if(options.empty_lost_and_found_overridden) ++ param->empty_lost_n_found = options.empty_lost_and_found; ++ ++ /* ... and the functions. */ ++ if (yaffs_version == 2) { ++ param->write_chunk_tags_fn = ++ nandmtd2_WriteChunkWithTagsToNAND; ++ param->read_chunk_tags_fn = ++ nandmtd2_ReadChunkWithTagsFromNAND; ++ param->bad_block_fn = nandmtd2_MarkNANDBlockBad; ++ param->query_block_fn = nandmtd2_QueryNANDBlock; ++ yaffs_dev_to_lc(dev)->spareBuffer = YMALLOC(mtd->oobsize); ++ param->is_yaffs2 = 1; ++#if (LINUX_VERSION_CODE > KERNEL_VERSION(2, 6, 17)) ++ param->total_bytes_per_chunk = mtd->writesize; ++ param->chunks_per_block = mtd->erasesize / mtd->writesize; ++#else ++ param->total_bytes_per_chunk = mtd->oobblock; ++ param->chunks_per_block = mtd->erasesize / mtd->oobblock; ++#endif ++ nBlocks = YCALCBLOCKS(mtd->size, mtd->erasesize); ++ ++ param->start_block = 0; ++ param->end_block = nBlocks - 1; ++ } else { ++#if (LINUX_VERSION_CODE > KERNEL_VERSION(2, 6, 17)) ++ /* use the MTD interface in yaffs_mtdif1.c */ ++ param->write_chunk_tags_fn = ++ nandmtd1_WriteChunkWithTagsToNAND; ++ param->read_chunk_tags_fn = ++ nandmtd1_ReadChunkWithTagsFromNAND; ++ param->bad_block_fn = nandmtd1_MarkNANDBlockBad; ++ param->query_block_fn = nandmtd1_QueryNANDBlock; ++#else ++ param->write_chunk_fn = nandmtd_WriteChunkToNAND; ++ param->read_chunk_fn = nandmtd_ReadChunkFromNAND; ++#endif ++ param->is_yaffs2 = 0; ++ } ++ /* ... and common functions */ ++ param->erase_fn = nandmtd_EraseBlockInNAND; ++ param->initialise_flash_fn = nandmtd_InitialiseNAND; ++ ++ yaffs_dev_to_lc(dev)->putSuperFunc = yaffs_MTDPutSuper; ++ ++ param->sb_dirty_fn = yaffs_touch_super; ++ param->gc_control = yaffs_gc_control_callback; ++ ++ yaffs_dev_to_lc(dev)->superBlock= sb; ++ ++ ++#ifndef CONFIG_YAFFS_DOES_ECC ++ param->use_nand_ecc = 1; ++#endif ++ ++#ifdef CONFIG_YAFFS_DISABLE_WIDE_TNODES ++ param->wide_tnodes_disabled = 1; ++#endif ++ ++ param->skip_checkpt_rd = options.skip_checkpoint_read; ++ param->skip_checkpt_wr = options.skip_checkpoint_write; ++ ++ down(&yaffs_context_lock); ++ /* Get a mount id */ ++ found = 0; ++ for(mount_id=0; ! found; mount_id++){ ++ found = 1; ++ ylist_for_each(l,&yaffs_context_list){ ++ context_iterator = ylist_entry(l,struct yaffs_LinuxContext,contextList); ++ if(context_iterator->mount_id == mount_id) ++ found = 0; ++ } ++ } ++ context->mount_id = mount_id; ++ ++ ylist_add_tail(&(yaffs_dev_to_lc(dev)->contextList), &yaffs_context_list); ++ up(&yaffs_context_lock); ++ ++ /* Directory search handling...*/ ++ YINIT_LIST_HEAD(&(yaffs_dev_to_lc(dev)->searchContexts)); ++ param->remove_obj_fn = yaffs_remove_obj_callback; ++ ++ init_MUTEX(&(yaffs_dev_to_lc(dev)->grossLock)); ++ ++ yaffs_gross_lock(dev); ++ ++ err = yaffs_guts_initialise(dev); ++ ++ T(YAFFS_TRACE_OS, ++ (TSTR("yaffs_read_super: guts initialised %s\n"), ++ (err == YAFFS_OK) ? "OK" : "FAILED")); ++ ++ if(err == YAFFS_OK) ++ yaffs_bg_start(dev); ++ ++ if(!context->bgThread) ++ param->defered_dir_update = 0; ++ ++ ++ /* Release lock before yaffs_get_inode() */ ++ yaffs_gross_unlock(dev); ++ ++ /* Create root inode */ ++ if (err == YAFFS_OK) ++ inode = yaffs_get_inode(sb, S_IFDIR | 0755, 0, ++ yaffs_root(dev)); ++ ++ if (!inode) ++ return NULL; ++ ++ inode->i_op = &yaffs_dir_inode_operations; ++ inode->i_fop = &yaffs_dir_operations; ++ ++ T(YAFFS_TRACE_OS, (TSTR("yaffs_read_super: got root inode\n"))); ++ ++ root = d_alloc_root(inode); ++ ++ T(YAFFS_TRACE_OS, (TSTR("yaffs_read_super: d_alloc_root done\n"))); ++ ++ if (!root) { ++ iput(inode); ++ return NULL; ++ } ++ sb->s_root = root; ++ sb->s_dirt = !dev->is_checkpointed; ++ T(YAFFS_TRACE_ALWAYS, ++ (TSTR("yaffs_read_super: is_checkpointed %d\n"), ++ dev->is_checkpointed)); ++ ++ T(YAFFS_TRACE_OS, (TSTR("yaffs_read_super: done\n"))); ++ return sb; ++} ++ ++ ++#if (LINUX_VERSION_CODE > KERNEL_VERSION(2, 5, 0)) ++static int yaffs_internal_read_super_mtd(struct super_block *sb, void *data, ++ int silent) ++{ ++ return yaffs_internal_read_super(1, sb, data, silent) ? 0 : -EINVAL; ++} ++ ++#if (LINUX_VERSION_CODE > KERNEL_VERSION(2, 6, 17)) ++static int yaffs_read_super(struct file_system_type *fs, ++ int flags, const char *dev_name, ++ void *data, struct vfsmount *mnt) ++{ ++ ++ return get_sb_bdev(fs, flags, dev_name, data, ++ yaffs_internal_read_super_mtd, mnt); ++} ++#else ++static struct super_block *yaffs_read_super(struct file_system_type *fs, ++ int flags, const char *dev_name, ++ void *data) ++{ ++ ++ return get_sb_bdev(fs, flags, dev_name, data, ++ yaffs_internal_read_super_mtd); ++} ++#endif ++ ++static struct file_system_type yaffs_fs_type = { ++ .owner = THIS_MODULE, ++ .name = "yaffs", ++ .get_sb = yaffs_read_super, ++ .kill_sb = kill_block_super, ++ .fs_flags = FS_REQUIRES_DEV, ++}; ++#else ++static struct super_block *yaffs_read_super(struct super_block *sb, void *data, ++ int silent) ++{ ++ return yaffs_internal_read_super(1, sb, data, silent); ++} ++ ++static DECLARE_FSTYPE(yaffs_fs_type, "yaffs", yaffs_read_super, ++ FS_REQUIRES_DEV); ++#endif ++ ++ ++#ifdef CONFIG_YAFFS_YAFFS2 ++ ++#if (LINUX_VERSION_CODE > KERNEL_VERSION(2, 5, 0)) ++static int yaffs2_internal_read_super_mtd(struct super_block *sb, void *data, ++ int silent) ++{ ++ return yaffs_internal_read_super(2, sb, data, silent) ? 0 : -EINVAL; ++} ++ ++#if (LINUX_VERSION_CODE > KERNEL_VERSION(2, 6, 17)) ++static int yaffs2_read_super(struct file_system_type *fs, ++ int flags, const char *dev_name, void *data, ++ struct vfsmount *mnt) ++{ ++ return get_sb_bdev(fs, flags, dev_name, data, ++ yaffs2_internal_read_super_mtd, mnt); ++} ++#else ++static struct super_block *yaffs2_read_super(struct file_system_type *fs, ++ int flags, const char *dev_name, ++ void *data) ++{ ++ ++ return get_sb_bdev(fs, flags, dev_name, data, ++ yaffs2_internal_read_super_mtd); ++} ++#endif ++ ++static struct file_system_type yaffs2_fs_type = { ++ .owner = THIS_MODULE, ++ .name = "yaffs2", ++ .get_sb = yaffs2_read_super, ++ .kill_sb = kill_block_super, ++ .fs_flags = FS_REQUIRES_DEV, ++}; ++#else ++static struct super_block *yaffs2_read_super(struct super_block *sb, ++ void *data, int silent) ++{ ++ return yaffs_internal_read_super(2, sb, data, silent); ++} ++ ++static DECLARE_FSTYPE(yaffs2_fs_type, "yaffs2", yaffs2_read_super, ++ FS_REQUIRES_DEV); ++#endif ++ ++#endif /* CONFIG_YAFFS_YAFFS2 */ ++ ++static struct proc_dir_entry *my_proc_entry; ++static struct proc_dir_entry *debug_proc_entry; ++ ++static char *yaffs_dump_dev_part0(char *buf, yaffs_dev_t * dev) ++{ ++ buf += sprintf(buf, "start_block.......... %d\n", dev->param.start_block); ++ buf += sprintf(buf, "end_block............ %d\n", dev->param.end_block); ++ buf += sprintf(buf, "total_bytes_per_chunk %d\n", dev->param.total_bytes_per_chunk); ++ buf += sprintf(buf, "use_nand_ecc......... %d\n", dev->param.use_nand_ecc); ++ buf += sprintf(buf, "no_tags_ecc.......... %d\n", dev->param.no_tags_ecc); ++ buf += sprintf(buf, "is_yaffs2............ %d\n", dev->param.is_yaffs2); ++ buf += sprintf(buf, "inband_tags.......... %d\n", dev->param.inband_tags); ++ buf += sprintf(buf, "empty_lost_n_found... %d\n", dev->param.empty_lost_n_found); ++ buf += sprintf(buf, "disable_lazy_load.... %d\n", dev->param.disable_lazy_load); ++ buf += sprintf(buf, "refresh_period....... %d\n", dev->param.refresh_period); ++ buf += sprintf(buf, "n_caches............. %d\n", dev->param.n_caches); ++ buf += sprintf(buf, "n_reserved_blocks.... %d\n", dev->param.n_reserved_blocks); ++ buf += sprintf(buf, "always_check_erased.. %d\n", dev->param.always_check_erased); ++ ++ buf += sprintf(buf, "\n"); ++ ++ return buf; ++} ++ ++ ++static char *yaffs_dump_dev_part1(char *buf, yaffs_dev_t * dev) ++{ ++ buf += sprintf(buf, "data_bytes_per_chunk. %d\n", dev->data_bytes_per_chunk); ++ buf += sprintf(buf, "chunk_grp_bits....... %d\n", dev->chunk_grp_bits); ++ buf += sprintf(buf, "chunk_grp_size....... %d\n", dev->chunk_grp_size); ++ buf += sprintf(buf, "n_erased_blocks...... %d\n", dev->n_erased_blocks); ++ buf += sprintf(buf, "blocks_in_checkpt.... %d\n", dev->blocks_in_checkpt); ++ buf += sprintf(buf, "\n"); ++ buf += sprintf(buf, "n_tnodes............. %d\n", dev->n_tnodes); ++ buf += sprintf(buf, "n_obj................ %d\n", dev->n_obj); ++ buf += sprintf(buf, "n_free_chunks........ %d\n", dev->n_free_chunks); ++ buf += sprintf(buf, "\n"); ++ buf += sprintf(buf, "n_page_writes........ %u\n", dev->n_page_writes); ++ buf += sprintf(buf, "n_page_reads......... %u\n", dev->n_page_reads); ++ buf += sprintf(buf, "n_erasures........... %u\n", dev->n_erasures); ++ buf += sprintf(buf, "n_gc_copies.......... %u\n", dev->n_gc_copies); ++ buf += sprintf(buf, "all_gcs.............. %u\n", dev->all_gcs); ++ buf += sprintf(buf, "passive_gc_count..... %u\n", dev->passive_gc_count); ++ buf += sprintf(buf, "oldest_dirty_gc_count %u\n", dev->oldest_dirty_gc_count); ++ buf += sprintf(buf, "n_gc_blocks.......... %u\n", dev->n_gc_blocks); ++ buf += sprintf(buf, "bg_gcs............... %u\n", dev->bg_gcs); ++ buf += sprintf(buf, "n_retired_writes..... %u\n", dev->n_retired_writes); ++ buf += sprintf(buf, "nRetireBlocks........ %u\n", dev->n_retired_blocks); ++ buf += sprintf(buf, "n_ecc_fixed.......... %u\n", dev->n_ecc_fixed); ++ buf += sprintf(buf, "n_ecc_unfixed........ %u\n", dev->n_ecc_unfixed); ++ buf += sprintf(buf, "n_tags_ecc_fixed..... %u\n", dev->n_tags_ecc_fixed); ++ buf += sprintf(buf, "n_tags_ecc_unfixed... %u\n", dev->n_tags_ecc_unfixed); ++ buf += sprintf(buf, "cache_hits........... %u\n", dev->cache_hits); ++ buf += sprintf(buf, "n_deleted_files...... %u\n", dev->n_deleted_files); ++ buf += sprintf(buf, "n_unlinked_files..... %u\n", dev->n_unlinked_files); ++ buf += sprintf(buf, "refresh_count........ %u\n", dev->refresh_count); ++ buf += sprintf(buf, "n_bg_deletions....... %u\n", dev->n_bg_deletions); ++ ++ return buf; ++} ++ ++static int yaffs_proc_read(char *page, ++ char **start, ++ off_t offset, int count, int *eof, void *data) ++{ ++ struct ylist_head *item; ++ char *buf = page; ++ int step = offset; ++ int n = 0; ++ ++ /* Get proc_file_read() to step 'offset' by one on each sucessive call. ++ * We use 'offset' (*ppos) to indicate where we are in dev_list. ++ * This also assumes the user has posted a read buffer large ++ * enough to hold the complete output; but that's life in /proc. ++ */ ++ ++ *(int *)start = 1; ++ ++ /* Print header first */ ++ if (step == 0) ++ buf += sprintf(buf, "Multi-version YAFFS built:" __DATE__ " " __TIME__"\n"); ++ else if (step == 1) ++ buf += sprintf(buf,"\n"); ++ else { ++ step-=2; ++ ++ down(&yaffs_context_lock); ++ ++ /* Locate and print the Nth entry. Order N-squared but N is small. */ ++ ylist_for_each(item, &yaffs_context_list) { ++ struct yaffs_LinuxContext *dc = ylist_entry(item, struct yaffs_LinuxContext, contextList); ++ yaffs_dev_t *dev = dc->dev; ++ ++ if (n < (step & ~1)) { ++ n+=2; ++ continue; ++ } ++ if((step & 1)==0){ ++ buf += sprintf(buf, "\nDevice %d \"%s\"\n", n, dev->param.name); ++ buf = yaffs_dump_dev_part0(buf, dev); ++ } else ++ buf = yaffs_dump_dev_part1(buf, dev); ++ ++ break; ++ } ++ up(&yaffs_context_lock); ++ } ++ ++ return buf - page < count ? buf - page : count; ++} ++ ++static int yaffs_stats_proc_read(char *page, ++ char **start, ++ off_t offset, int count, int *eof, void *data) ++{ ++ struct ylist_head *item; ++ char *buf = page; ++ int n = 0; ++ ++ down(&yaffs_context_lock); ++ ++ /* Locate and print the Nth entry. Order N-squared but N is small. */ ++ ylist_for_each(item, &yaffs_context_list) { ++ struct yaffs_LinuxContext *dc = ylist_entry(item, struct yaffs_LinuxContext, contextList); ++ yaffs_dev_t *dev = dc->dev; ++ ++ int erasedChunks; ++ ++ erasedChunks = dev->n_erased_blocks * dev->param.chunks_per_block; ++ ++ buf += sprintf(buf,"%d, %d, %d, %u, %u, %u, %u\n", ++ n, dev->n_free_chunks, erasedChunks, ++ dev->bg_gcs, dev->oldest_dirty_gc_count, ++ dev->n_obj, dev->n_tnodes); ++ } ++ up(&yaffs_context_lock); ++ ++ ++ return buf - page < count ? buf - page : count; ++} ++ ++/** ++ * Set the verbosity of the warnings and error messages. ++ * ++ * Note that the names can only be a..z or _ with the current code. ++ */ ++ ++static struct { ++ char *mask_name; ++ unsigned mask_bitfield; ++} mask_flags[] = { ++ {"allocate", YAFFS_TRACE_ALLOCATE}, ++ {"always", YAFFS_TRACE_ALWAYS}, ++ {"background", YAFFS_TRACE_BACKGROUND}, ++ {"bad_blocks", YAFFS_TRACE_BAD_BLOCKS}, ++ {"buffers", YAFFS_TRACE_BUFFERS}, ++ {"bug", YAFFS_TRACE_BUG}, ++ {"checkpt", YAFFS_TRACE_CHECKPOINT}, ++ {"deletion", YAFFS_TRACE_DELETION}, ++ {"erase", YAFFS_TRACE_ERASE}, ++ {"error", YAFFS_TRACE_ERROR}, ++ {"gc_detail", YAFFS_TRACE_GC_DETAIL}, ++ {"gc", YAFFS_TRACE_GC}, ++ {"lock", YAFFS_TRACE_LOCK}, ++ {"mtd", YAFFS_TRACE_MTD}, ++ {"nandaccess", YAFFS_TRACE_NANDACCESS}, ++ {"os", YAFFS_TRACE_OS}, ++ {"scan_debug", YAFFS_TRACE_SCAN_DEBUG}, ++ {"scan", YAFFS_TRACE_SCAN}, ++ {"tracing", YAFFS_TRACE_TRACING}, ++ {"sync", YAFFS_TRACE_SYNC}, ++ {"write", YAFFS_TRACE_WRITE}, ++ ++ {"verify", YAFFS_TRACE_VERIFY}, ++ {"verify_nand", YAFFS_TRACE_VERIFY_NAND}, ++ {"verify_full", YAFFS_TRACE_VERIFY_FULL}, ++ {"verify_all", YAFFS_TRACE_VERIFY_ALL}, ++ ++ {"all", 0xffffffff}, ++ {"none", 0}, ++ {NULL, 0}, ++}; ++ ++#define MAX_MASK_NAME_LENGTH 40 ++static int yaffs_proc_write_trace_options(struct file *file, const char *buf, ++ unsigned long count, void *data) ++{ ++ unsigned rg = 0, mask_bitfield; ++ char *end; ++ char *mask_name; ++ const char *x; ++ char substring[MAX_MASK_NAME_LENGTH + 1]; ++ int i; ++ int done = 0; ++ int add, len = 0; ++ int pos = 0; ++ ++ rg = yaffs_trace_mask; ++ ++ while (!done && (pos < count)) { ++ done = 1; ++ while ((pos < count) && isspace(buf[pos])) ++ pos++; ++ ++ switch (buf[pos]) { ++ case '+': ++ case '-': ++ case '=': ++ add = buf[pos]; ++ pos++; ++ break; ++ ++ default: ++ add = ' '; ++ break; ++ } ++ mask_name = NULL; ++ ++ mask_bitfield = simple_strtoul(buf + pos, &end, 0); ++ ++ if (end > buf + pos) { ++ mask_name = "numeral"; ++ len = end - (buf + pos); ++ pos += len; ++ done = 0; ++ } else { ++ for (x = buf + pos, i = 0; ++ (*x == '_' || (*x >= 'a' && *x <= 'z')) && ++ i < MAX_MASK_NAME_LENGTH; x++, i++, pos++) ++ substring[i] = *x; ++ substring[i] = '\0'; ++ ++ for (i = 0; mask_flags[i].mask_name != NULL; i++) { ++ if (strcmp(substring, mask_flags[i].mask_name) == 0) { ++ mask_name = mask_flags[i].mask_name; ++ mask_bitfield = mask_flags[i].mask_bitfield; ++ done = 0; ++ break; ++ } ++ } ++ } ++ ++ if (mask_name != NULL) { ++ done = 0; ++ switch (add) { ++ case '-': ++ rg &= ~mask_bitfield; ++ break; ++ case '+': ++ rg |= mask_bitfield; ++ break; ++ case '=': ++ rg = mask_bitfield; ++ break; ++ default: ++ rg |= mask_bitfield; ++ break; ++ } ++ } ++ } ++ ++ yaffs_trace_mask = rg | YAFFS_TRACE_ALWAYS; ++ ++ printk(KERN_DEBUG "new trace = 0x%08X\n", yaffs_trace_mask); ++ ++ if (rg & YAFFS_TRACE_ALWAYS) { ++ for (i = 0; mask_flags[i].mask_name != NULL; i++) { ++ char flag; ++ flag = ((rg & mask_flags[i].mask_bitfield) == ++ mask_flags[i].mask_bitfield) ? '+' : '-'; ++ printk(KERN_DEBUG "%c%s\n", flag, mask_flags[i].mask_name); ++ } ++ } ++ ++ return count; ++} ++ ++ ++static int yaffs_proc_write(struct file *file, const char *buf, ++ unsigned long count, void *data) ++{ ++ return yaffs_proc_write_trace_options(file, buf, count, data); ++} ++ ++/* Stuff to handle installation of file systems */ ++struct file_system_to_install { ++ struct file_system_type *fst; ++ int installed; ++}; ++ ++static struct file_system_to_install fs_to_install[] = { ++ {&yaffs_fs_type, 0}, ++ {&yaffs2_fs_type, 0}, ++ {NULL, 0} ++}; ++ ++static int __init init_yaffs_fs(void) ++{ ++ int error = 0; ++ struct file_system_to_install *fsinst; ++ ++ T(YAFFS_TRACE_ALWAYS, ++ (TSTR("yaffs built " __DATE__ " " __TIME__ " Installing. \n"))); ++ ++#ifdef CONFIG_YAFFS_ALWAYS_CHECK_CHUNK_ERASED ++ T(YAFFS_TRACE_ALWAYS, ++ (TSTR(" \n\n\n\nYAFFS-WARNING CONFIG_YAFFS_ALWAYS_CHECK_CHUNK_ERASED selected.\n\n\n\n"))); ++#endif ++ ++ ++ ++ ++ init_MUTEX(&yaffs_context_lock); ++ ++ /* Install the proc_fs entries */ ++ my_proc_entry = create_proc_entry("yaffs", ++ S_IRUGO | S_IFREG, ++ YPROC_ROOT); ++ ++ if (my_proc_entry) { ++ my_proc_entry->write_proc = yaffs_proc_write; ++ my_proc_entry->read_proc = yaffs_proc_read; ++ my_proc_entry->data = NULL; ++ } else ++ return -ENOMEM; ++ ++ debug_proc_entry = create_proc_entry("yaffs_stats", ++ S_IRUGO | S_IFREG, ++ YPROC_ROOT); ++ ++ if (debug_proc_entry) { ++ debug_proc_entry->write_proc = NULL; ++ debug_proc_entry->read_proc = yaffs_stats_proc_read; ++ debug_proc_entry->data = NULL; ++ } else ++ return -ENOMEM; ++ ++ /* Now add the file system entries */ ++ ++ fsinst = fs_to_install; ++ ++ while (fsinst->fst && !error) { ++ error = register_filesystem(fsinst->fst); ++ if (!error) ++ fsinst->installed = 1; ++ fsinst++; ++ } ++ ++ /* Any errors? uninstall */ ++ if (error) { ++ fsinst = fs_to_install; ++ ++ while (fsinst->fst) { ++ if (fsinst->installed) { ++ unregister_filesystem(fsinst->fst); ++ fsinst->installed = 0; ++ } ++ fsinst++; ++ } ++ } ++ ++ return error; ++} ++ ++static void __exit exit_yaffs_fs(void) ++{ ++ ++ struct file_system_to_install *fsinst; ++ ++ T(YAFFS_TRACE_ALWAYS, ++ (TSTR("yaffs built " __DATE__ " " __TIME__ " removing. \n"))); ++ ++ remove_proc_entry("yaffs", YPROC_ROOT); ++ remove_proc_entry("yaffs_stats", YPROC_ROOT); ++ ++ fsinst = fs_to_install; ++ ++ while (fsinst->fst) { ++ if (fsinst->installed) { ++ unregister_filesystem(fsinst->fst); ++ fsinst->installed = 0; ++ } ++ fsinst++; ++ } ++} ++ ++module_init(init_yaffs_fs) ++module_exit(exit_yaffs_fs) ++ ++MODULE_DESCRIPTION("YAFFS2 - a NAND specific flash file system"); ++MODULE_AUTHOR("Charles Manning, Aleph One Ltd., 2002-2010"); ++MODULE_LICENSE("GPL"); +--- /dev/null ++++ b/fs/yaffs2/yaffs_yaffs1.c +@@ -0,0 +1,465 @@ ++/* ++ * YAFFS: Yet Another Flash File System. A NAND-flash specific file system. ++ * ++ * Copyright (C) 2002-2010 Aleph One Ltd. ++ * for Toby Churchill Ltd and Brightstar Engineering ++ * ++ * Created by Charles Manning ++ * ++ * This program is free software; you can redistribute it and/or modify ++ * it under the terms of the GNU General Public License version 2 as ++ * published by the Free Software Foundation. ++ */ ++#include "yaffs_yaffs1.h" ++#include "yportenv.h" ++#include "yaffs_trace.h" ++#include "yaffs_bitmap.h" ++#include "yaffs_getblockinfo.h" ++#include "yaffs_nand.h" ++ ++ ++int yaffs1_scan(yaffs_dev_t *dev) ++{ ++ yaffs_ext_tags tags; ++ int blk; ++ int blockIterator; ++ int startIterator; ++ int endIterator; ++ int result; ++ ++ int chunk; ++ int c; ++ int deleted; ++ yaffs_block_state_t state; ++ yaffs_obj_t *hard_list = NULL; ++ yaffs_block_info_t *bi; ++ __u32 seq_number; ++ yaffs_obj_header *oh; ++ yaffs_obj_t *in; ++ yaffs_obj_t *parent; ++ ++ int alloc_failed = 0; ++ ++ struct yaffs_shadow_fixer_s *shadowFixerList = NULL; ++ ++ ++ __u8 *chunkData; ++ ++ ++ ++ T(YAFFS_TRACE_SCAN, ++ (TSTR("yaffs1_scan starts intstartblk %d intendblk %d..." TENDSTR), ++ dev->internal_start_block, dev->internal_end_block)); ++ ++ chunkData = yaffs_get_temp_buffer(dev, __LINE__); ++ ++ dev->seq_number = YAFFS_LOWEST_SEQUENCE_NUMBER; ++ ++ /* Scan all the blocks to determine their state */ ++ bi = dev->block_info; ++ for (blk = dev->internal_start_block; blk <= dev->internal_end_block; blk++) { ++ yaffs_clear_chunk_bits(dev, blk); ++ bi->pages_in_use = 0; ++ bi->soft_del_pages = 0; ++ ++ yaffs_query_init_block_state(dev, blk, &state, &seq_number); ++ ++ bi->block_state = state; ++ bi->seq_number = seq_number; ++ ++ if (bi->seq_number == YAFFS_SEQUENCE_BAD_BLOCK) ++ bi->block_state = state = YAFFS_BLOCK_STATE_DEAD; ++ ++ T(YAFFS_TRACE_SCAN_DEBUG, ++ (TSTR("Block scanning block %d state %d seq %d" TENDSTR), blk, ++ state, seq_number)); ++ ++ if (state == YAFFS_BLOCK_STATE_DEAD) { ++ T(YAFFS_TRACE_BAD_BLOCKS, ++ (TSTR("block %d is bad" TENDSTR), blk)); ++ } else if (state == YAFFS_BLOCK_STATE_EMPTY) { ++ T(YAFFS_TRACE_SCAN_DEBUG, ++ (TSTR("Block empty " TENDSTR))); ++ dev->n_erased_blocks++; ++ dev->n_free_chunks += dev->param.chunks_per_block; ++ } ++ bi++; ++ } ++ ++ startIterator = dev->internal_start_block; ++ endIterator = dev->internal_end_block; ++ ++ /* For each block.... */ ++ for (blockIterator = startIterator; !alloc_failed && blockIterator <= endIterator; ++ blockIterator++) { ++ ++ YYIELD(); ++ ++ YYIELD(); ++ ++ blk = blockIterator; ++ ++ bi = yaffs_get_block_info(dev, blk); ++ state = bi->block_state; ++ ++ deleted = 0; ++ ++ /* For each chunk in each block that needs scanning....*/ ++ for (c = 0; !alloc_failed && c < dev->param.chunks_per_block && ++ state == YAFFS_BLOCK_STATE_NEEDS_SCANNING; c++) { ++ /* Read the tags and decide what to do */ ++ chunk = blk * dev->param.chunks_per_block + c; ++ ++ result = yaffs_rd_chunk_tags_nand(dev, chunk, NULL, ++ &tags); ++ ++ /* Let's have a good look at this chunk... */ ++ ++ if (tags.ecc_result == YAFFS_ECC_RESULT_UNFIXED || tags.is_deleted) { ++ /* YAFFS1 only... ++ * A deleted chunk ++ */ ++ deleted++; ++ dev->n_free_chunks++; ++ /*T((" %d %d deleted\n",blk,c)); */ ++ } else if (!tags.chunk_used) { ++ /* An unassigned chunk in the block ++ * This means that either the block is empty or ++ * this is the one being allocated from ++ */ ++ ++ if (c == 0) { ++ /* We're looking at the first chunk in the block so the block is unused */ ++ state = YAFFS_BLOCK_STATE_EMPTY; ++ dev->n_erased_blocks++; ++ } else { ++ /* this is the block being allocated from */ ++ T(YAFFS_TRACE_SCAN, ++ (TSTR ++ (" Allocating from %d %d" TENDSTR), ++ blk, c)); ++ state = YAFFS_BLOCK_STATE_ALLOCATING; ++ dev->alloc_block = blk; ++ dev->alloc_page = c; ++ dev->alloc_block_finder = blk; ++ /* Set block finder here to encourage the allocator to go forth from here. */ ++ ++ } ++ ++ dev->n_free_chunks += (dev->param.chunks_per_block - c); ++ } else if (tags.chunk_id > 0) { ++ /* chunk_id > 0 so it is a data chunk... */ ++ unsigned int endpos; ++ ++ yaffs_set_chunk_bit(dev, blk, c); ++ bi->pages_in_use++; ++ ++ in = yaffs_find_or_create_by_number(dev, ++ tags. ++ obj_id, ++ YAFFS_OBJECT_TYPE_FILE); ++ /* PutChunkIntoFile checks for a clash (two data chunks with ++ * the same chunk_id). ++ */ ++ ++ if (!in) ++ alloc_failed = 1; ++ ++ if (in) { ++ if (!yaffs_put_chunk_in_file(in, tags.chunk_id, chunk, 1)) ++ alloc_failed = 1; ++ } ++ ++ endpos = ++ (tags.chunk_id - 1) * dev->data_bytes_per_chunk + ++ tags.n_bytes; ++ if (in && ++ in->variant_type == YAFFS_OBJECT_TYPE_FILE ++ && in->variant.file_variant.scanned_size < ++ endpos) { ++ in->variant.file_variant. ++ scanned_size = endpos; ++ if (!dev->param.use_header_file_size) { ++ in->variant.file_variant. ++ file_size = ++ in->variant.file_variant. ++ scanned_size; ++ } ++ ++ } ++ /* T((" %d %d data %d %d\n",blk,c,tags.obj_id,tags.chunk_id)); */ ++ } else { ++ /* chunk_id == 0, so it is an ObjectHeader. ++ * Thus, we read in the object header and make the object ++ */ ++ yaffs_set_chunk_bit(dev, blk, c); ++ bi->pages_in_use++; ++ ++ result = yaffs_rd_chunk_tags_nand(dev, chunk, ++ chunkData, ++ NULL); ++ ++ oh = (yaffs_obj_header *) chunkData; ++ ++ in = yaffs_find_by_number(dev, ++ tags.obj_id); ++ if (in && in->variant_type != oh->type) { ++ /* This should not happen, but somehow ++ * Wev'e ended up with an obj_id that has been reused but not yet ++ * deleted, and worse still it has changed type. Delete the old object. ++ */ ++ ++ yaffs_del_obj(in); ++ ++ in = 0; ++ } ++ ++ in = yaffs_find_or_create_by_number(dev, ++ tags. ++ obj_id, ++ oh->type); ++ ++ if (!in) ++ alloc_failed = 1; ++ ++ if (in && oh->shadows_obj > 0) { ++ ++ struct yaffs_shadow_fixer_s *fixer; ++ fixer = YMALLOC(sizeof(struct yaffs_shadow_fixer_s)); ++ if (fixer) { ++ fixer->next = shadowFixerList; ++ shadowFixerList = fixer; ++ fixer->obj_id = tags.obj_id; ++ fixer->shadowed_id = oh->shadows_obj; ++ T(YAFFS_TRACE_SCAN, ++ (TSTR ++ (" Shadow fixer: %d shadows %d" TENDSTR), ++ fixer->obj_id, fixer->shadowed_id)); ++ ++ } ++ ++ } ++ ++ if (in && in->valid) { ++ /* We have already filled this one. We have a duplicate and need to resolve it. */ ++ ++ unsigned existingSerial = in->serial; ++ unsigned newSerial = tags.serial_number; ++ ++ if (((existingSerial + 1) & 3) == newSerial) { ++ /* Use new one - destroy the exisiting one */ ++ yaffs_chunk_del(dev, ++ in->hdr_chunk, ++ 1, __LINE__); ++ in->valid = 0; ++ } else { ++ /* Use existing - destroy this one. */ ++ yaffs_chunk_del(dev, chunk, 1, ++ __LINE__); ++ } ++ } ++ ++ if (in && !in->valid && ++ (tags.obj_id == YAFFS_OBJECTID_ROOT || ++ tags.obj_id == YAFFS_OBJECTID_LOSTNFOUND)) { ++ /* We only load some info, don't fiddle with directory structure */ ++ in->valid = 1; ++ in->variant_type = oh->type; ++ ++ in->yst_mode = oh->yst_mode; ++#ifdef CONFIG_YAFFS_WINCE ++ in->win_atime[0] = oh->win_atime[0]; ++ in->win_ctime[0] = oh->win_ctime[0]; ++ in->win_mtime[0] = oh->win_mtime[0]; ++ in->win_atime[1] = oh->win_atime[1]; ++ in->win_ctime[1] = oh->win_ctime[1]; ++ in->win_mtime[1] = oh->win_mtime[1]; ++#else ++ in->yst_uid = oh->yst_uid; ++ in->yst_gid = oh->yst_gid; ++ in->yst_atime = oh->yst_atime; ++ in->yst_mtime = oh->yst_mtime; ++ in->yst_ctime = oh->yst_ctime; ++ in->yst_rdev = oh->yst_rdev; ++#endif ++ in->hdr_chunk = chunk; ++ in->serial = tags.serial_number; ++ ++ } else if (in && !in->valid) { ++ /* we need to load this info */ ++ ++ in->valid = 1; ++ in->variant_type = oh->type; ++ ++ in->yst_mode = oh->yst_mode; ++#ifdef CONFIG_YAFFS_WINCE ++ in->win_atime[0] = oh->win_atime[0]; ++ in->win_ctime[0] = oh->win_ctime[0]; ++ in->win_mtime[0] = oh->win_mtime[0]; ++ in->win_atime[1] = oh->win_atime[1]; ++ in->win_ctime[1] = oh->win_ctime[1]; ++ in->win_mtime[1] = oh->win_mtime[1]; ++#else ++ in->yst_uid = oh->yst_uid; ++ in->yst_gid = oh->yst_gid; ++ in->yst_atime = oh->yst_atime; ++ in->yst_mtime = oh->yst_mtime; ++ in->yst_ctime = oh->yst_ctime; ++ in->yst_rdev = oh->yst_rdev; ++#endif ++ in->hdr_chunk = chunk; ++ in->serial = tags.serial_number; ++ ++ yaffs_set_obj_name_from_oh(in, oh); ++ in->dirty = 0; ++ ++ /* directory stuff... ++ * hook up to parent ++ */ ++ ++ parent = ++ yaffs_find_or_create_by_number ++ (dev, oh->parent_obj_id, ++ YAFFS_OBJECT_TYPE_DIRECTORY); ++ if (!parent) ++ alloc_failed = 1; ++ if (parent && parent->variant_type == ++ YAFFS_OBJECT_TYPE_UNKNOWN) { ++ /* Set up as a directory */ ++ parent->variant_type = ++ YAFFS_OBJECT_TYPE_DIRECTORY; ++ YINIT_LIST_HEAD(&parent->variant. ++ dir_variant. ++ children); ++ } else if (!parent || parent->variant_type != ++ YAFFS_OBJECT_TYPE_DIRECTORY) { ++ /* Hoosterman, another problem.... ++ * We're trying to use a non-directory as a directory ++ */ ++ ++ T(YAFFS_TRACE_ERROR, ++ (TSTR ++ ("yaffs tragedy: attempting to use non-directory as a directory in scan. Put in lost+found." ++ TENDSTR))); ++ parent = dev->lost_n_found; ++ } ++ ++ yaffs_add_obj_to_dir(parent, in); ++ ++ if (0 && (parent == dev->del_dir || ++ parent == dev->unlinked_dir)) { ++ in->deleted = 1; /* If it is unlinked at start up then it wants deleting */ ++ dev->n_deleted_files++; ++ } ++ /* Note re hardlinks. ++ * Since we might scan a hardlink before its equivalent object is scanned ++ * we put them all in a list. ++ * After scanning is complete, we should have all the objects, so we run through this ++ * list and fix up all the chains. ++ */ ++ ++ switch (in->variant_type) { ++ case YAFFS_OBJECT_TYPE_UNKNOWN: ++ /* Todo got a problem */ ++ break; ++ case YAFFS_OBJECT_TYPE_FILE: ++ if (dev->param.use_header_file_size) ++ ++ in->variant.file_variant. ++ file_size = ++ oh->file_size; ++ ++ break; ++ case YAFFS_OBJECT_TYPE_HARDLINK: ++ in->variant.hardlink_variant. ++ equiv_id = ++ oh->equiv_id; ++ in->hard_links.next = ++ (struct ylist_head *) ++ hard_list; ++ hard_list = in; ++ break; ++ case YAFFS_OBJECT_TYPE_DIRECTORY: ++ /* Do nothing */ ++ break; ++ case YAFFS_OBJECT_TYPE_SPECIAL: ++ /* Do nothing */ ++ break; ++ case YAFFS_OBJECT_TYPE_SYMLINK: ++ in->variant.symlink_variant.alias = ++ yaffs_clone_str(oh->alias); ++ if (!in->variant.symlink_variant.alias) ++ alloc_failed = 1; ++ break; ++ } ++ ++ } ++ } ++ } ++ ++ if (state == YAFFS_BLOCK_STATE_NEEDS_SCANNING) { ++ /* If we got this far while scanning, then the block is fully allocated.*/ ++ state = YAFFS_BLOCK_STATE_FULL; ++ } ++ ++ if (state == YAFFS_BLOCK_STATE_ALLOCATING) { ++ /* If the block was partially allocated then treat it as fully allocated.*/ ++ state = YAFFS_BLOCK_STATE_FULL; ++ dev->alloc_block = -1; ++ } ++ ++ bi->block_state = state; ++ ++ /* Now let's see if it was dirty */ ++ if (bi->pages_in_use == 0 && ++ !bi->has_shrink_hdr && ++ bi->block_state == YAFFS_BLOCK_STATE_FULL) { ++ yaffs_block_became_dirty(dev, blk); ++ } ++ ++ } ++ ++ ++ /* Ok, we've done all the scanning. ++ * Fix up the hard link chains. ++ * We should now have scanned all the objects, now it's time to add these ++ * hardlinks. ++ */ ++ ++ yaffs_link_fixup(dev, hard_list); ++ ++ /* Fix up any shadowed objects */ ++ { ++ struct yaffs_shadow_fixer_s *fixer; ++ yaffs_obj_t *obj; ++ ++ while (shadowFixerList) { ++ fixer = shadowFixerList; ++ shadowFixerList = fixer->next; ++ /* Complete the rename transaction by deleting the shadowed object ++ * then setting the object header to unshadowed. ++ */ ++ obj = yaffs_find_by_number(dev, fixer->shadowed_id); ++ if (obj) ++ yaffs_del_obj(obj); ++ ++ obj = yaffs_find_by_number(dev, fixer->obj_id); ++ ++ if (obj) ++ yaffs_update_oh(obj, NULL, 1, 0, 0, NULL); ++ ++ YFREE(fixer); ++ } ++ } ++ ++ yaffs_release_temp_buffer(dev, chunkData, __LINE__); ++ ++ if (alloc_failed) ++ return YAFFS_FAIL; ++ ++ T(YAFFS_TRACE_SCAN, (TSTR("yaffs1_scan ends" TENDSTR))); ++ ++ ++ return YAFFS_OK; ++} ++ +--- /dev/null ++++ b/fs/yaffs2/yaffs_yaffs1.h +@@ -0,0 +1,22 @@ ++/* ++ * YAFFS: Yet another Flash File System . A NAND-flash specific file system. ++ * ++ * Copyright (C) 2002-2010 Aleph One Ltd. ++ * for Toby Churchill Ltd and Brightstar Engineering ++ * ++ * Created by Charles Manning ++ * ++ * This program is free software; you can redistribute it and/or modify ++ * it under the terms of the GNU Lesser General Public License version 2.1 as ++ * published by the Free Software Foundation. ++ * ++ * Note: Only YAFFS headers are LGPL, YAFFS C code is covered by GPL. ++ */ ++ ++#ifndef __YAFFS_YAFFS1_H__ ++#define __YAFFS_YAFFS1_H__ ++ ++#include "yaffs_guts.h" ++int yaffs1_scan(yaffs_dev_t *dev); ++ ++#endif +--- /dev/null ++++ b/fs/yaffs2/yaffs_yaffs2.c +@@ -0,0 +1,1540 @@ ++/* ++ * YAFFS: Yet Another Flash File System. A NAND-flash specific file system. ++ * ++ * Copyright (C) 2002-2010 Aleph One Ltd. ++ * for Toby Churchill Ltd and Brightstar Engineering ++ * ++ * Created by Charles Manning ++ * ++ * This program is free software; you can redistribute it and/or modify ++ * it under the terms of the GNU General Public License version 2 as ++ * published by the Free Software Foundation. ++ */ ++ ++ ++#include "yaffs_guts.h" ++#include "yaffs_trace.h" ++#include "yaffs_yaffs2.h" ++#include "yaffs_checkptrw.h" ++#include "yaffs_bitmap.h" ++#include "yaffs_qsort.h" ++#include "yaffs_nand.h" ++#include "yaffs_getblockinfo.h" ++#include "yaffs_verify.h" ++ ++/* ++ * Checkpoints are really no benefit on very small partitions. ++ * ++ * To save space on small partitions don't bother with checkpoints unless ++ * the partition is at least this big. ++ */ ++#define YAFFS_CHECKPOINT_MIN_BLOCKS 60 ++ ++#define YAFFS_SMALL_HOLE_THRESHOLD 4 ++ ++ ++/* ++ * Oldest Dirty Sequence Number handling. ++ */ ++ ++/* yaffs_calc_oldest_dirty_seq() ++ * yaffs2_find_oldest_dirty_seq() ++ * Calculate the oldest dirty sequence number if we don't know it. ++ */ ++void yaffs_calc_oldest_dirty_seq(yaffs_dev_t *dev) ++{ ++ int i; ++ unsigned seq; ++ unsigned block_no = 0; ++ yaffs_block_info_t *b; ++ ++ if(!dev->param.is_yaffs2) ++ return; ++ ++ /* Find the oldest dirty sequence number. */ ++ seq = dev->seq_number + 1; ++ b = dev->block_info; ++ for (i = dev->internal_start_block; i <= dev->internal_end_block; i++) { ++ if (b->block_state == YAFFS_BLOCK_STATE_FULL && ++ (b->pages_in_use - b->soft_del_pages) < dev->param.chunks_per_block && ++ b->seq_number < seq) { ++ seq = b->seq_number; ++ block_no = i; ++ } ++ b++; ++ } ++ ++ if(block_no){ ++ dev->oldest_dirty_seq = seq; ++ dev->oldest_dirty_block = block_no; ++ } ++ ++} ++ ++ ++void yaffs2_find_oldest_dirty_seq(yaffs_dev_t *dev) ++{ ++ if(!dev->param.is_yaffs2) ++ return; ++ ++ if(!dev->oldest_dirty_seq) ++ yaffs_calc_oldest_dirty_seq(dev); ++} ++ ++/* ++ * yaffs_clear_oldest_dirty_seq() ++ * Called when a block is erased or marked bad. (ie. when its seq_number ++ * becomes invalid). If the value matches the oldest then we clear ++ * dev->oldest_dirty_seq to force its recomputation. ++ */ ++void yaffs2_clear_oldest_dirty_seq(yaffs_dev_t *dev, yaffs_block_info_t *bi) ++{ ++ ++ if(!dev->param.is_yaffs2) ++ return; ++ ++ if(!bi || bi->seq_number == dev->oldest_dirty_seq){ ++ dev->oldest_dirty_seq = 0; ++ dev->oldest_dirty_block = 0; ++ } ++} ++ ++/* ++ * yaffs2_update_oldest_dirty_seq() ++ * Update the oldest dirty sequence number whenever we dirty a block. ++ * Only do this if the oldest_dirty_seq is actually being tracked. ++ */ ++void yaffs2_update_oldest_dirty_seq(yaffs_dev_t *dev, unsigned block_no, yaffs_block_info_t *bi) ++{ ++ if(!dev->param.is_yaffs2) ++ return; ++ ++ if(dev->oldest_dirty_seq){ ++ if(dev->oldest_dirty_seq > bi->seq_number){ ++ dev->oldest_dirty_seq = bi->seq_number; ++ dev->oldest_dirty_block = block_no; ++ } ++ } ++} ++ ++int yaffs_block_ok_for_gc(yaffs_dev_t *dev, ++ yaffs_block_info_t *bi) ++{ ++ ++ if (!dev->param.is_yaffs2) ++ return 1; /* disqualification only applies to yaffs2. */ ++ ++ if (!bi->has_shrink_hdr) ++ return 1; /* can gc */ ++ ++ yaffs2_find_oldest_dirty_seq(dev); ++ ++ /* Can't do gc of this block if there are any blocks older than this one that have ++ * discarded pages. ++ */ ++ return (bi->seq_number <= dev->oldest_dirty_seq); ++} ++ ++/* ++ * yaffs2_find_refresh_block() ++ * periodically finds the oldest full block by sequence number for refreshing. ++ * Only for yaffs2. ++ */ ++__u32 yaffs2_find_refresh_block(yaffs_dev_t *dev) ++{ ++ __u32 b ; ++ ++ __u32 oldest = 0; ++ __u32 oldestSequence = 0; ++ ++ yaffs_block_info_t *bi; ++ ++ if(!dev->param.is_yaffs2) ++ return oldest; ++ ++ /* ++ * If refresh period < 10 then refreshing is disabled. ++ */ ++ if(dev->param.refresh_period < 10) ++ return oldest; ++ ++ /* ++ * Fix broken values. ++ */ ++ if(dev->refresh_skip > dev->param.refresh_period) ++ dev->refresh_skip = dev->param.refresh_period; ++ ++ if(dev->refresh_skip > 0) ++ return oldest; ++ ++ /* ++ * Refresh skip is now zero. ++ * We'll do a refresh this time around.... ++ * Update the refresh skip and find the oldest block. ++ */ ++ dev->refresh_skip = dev->param.refresh_period; ++ dev->refresh_count++; ++ bi = dev->block_info; ++ for (b = dev->internal_start_block; b <=dev->internal_end_block; b++){ ++ ++ if (bi->block_state == YAFFS_BLOCK_STATE_FULL){ ++ ++ if(oldest < 1 || ++ bi->seq_number < oldestSequence){ ++ oldest = b; ++ oldestSequence = bi->seq_number; ++ } ++ } ++ bi++; ++ } ++ ++ if (oldest > 0) { ++ T(YAFFS_TRACE_GC, ++ (TSTR("GC refresh count %d selected block %d with seq_number %d" TENDSTR), ++ dev->refresh_count, oldest, oldestSequence)); ++ } ++ ++ return oldest; ++} ++ ++int yaffs2_checkpt_required(yaffs_dev_t *dev) ++{ ++ int nblocks; ++ ++ if(!dev->param.is_yaffs2) ++ return 0; ++ ++ nblocks = dev->internal_end_block - dev->internal_start_block + 1 ; ++ ++ return !dev->param.skip_checkpt_wr && ++ !dev->read_only && ++ (nblocks >= YAFFS_CHECKPOINT_MIN_BLOCKS); ++} ++ ++int yaffs_calc_checkpt_blocks_required(yaffs_dev_t *dev) ++{ ++ int retval; ++ ++ if(!dev->param.is_yaffs2) ++ return 0; ++ ++ if (!dev->checkpoint_blocks_required && ++ yaffs2_checkpt_required(dev)){ ++ /* Not a valid value so recalculate */ ++ int n_bytes = 0; ++ int nBlocks; ++ int devBlocks = (dev->param.end_block - dev->param.start_block + 1); ++ ++ n_bytes += sizeof(yaffs_checkpt_validty_t); ++ n_bytes += sizeof(yaffs_checkpt_dev_t); ++ n_bytes += devBlocks * sizeof(yaffs_block_info_t); ++ n_bytes += devBlocks * dev->chunk_bit_stride; ++ n_bytes += (sizeof(yaffs_checkpt_obj_t) + sizeof(__u32)) * (dev->n_obj); ++ n_bytes += (dev->tnode_size + sizeof(__u32)) * (dev->n_tnodes); ++ n_bytes += sizeof(yaffs_checkpt_validty_t); ++ n_bytes += sizeof(__u32); /* checksum*/ ++ ++ /* Round up and add 2 blocks to allow for some bad blocks, so add 3 */ ++ ++ nBlocks = (n_bytes/(dev->data_bytes_per_chunk * dev->param.chunks_per_block)) + 3; ++ ++ dev->checkpoint_blocks_required = nBlocks; ++ } ++ ++ retval = dev->checkpoint_blocks_required - dev->blocks_in_checkpt; ++ if(retval < 0) ++ retval = 0; ++ return retval; ++} ++ ++/*--------------------- Checkpointing --------------------*/ ++ ++ ++static int yaffs2_wr_checkpt_validity_marker(yaffs_dev_t *dev, int head) ++{ ++ yaffs_checkpt_validty_t cp; ++ ++ memset(&cp, 0, sizeof(cp)); ++ ++ cp.struct_type = sizeof(cp); ++ cp.magic = YAFFS_MAGIC; ++ cp.version = YAFFS_CHECKPOINT_VERSION; ++ cp.head = (head) ? 1 : 0; ++ ++ return (yaffs2_checkpt_wr(dev, &cp, sizeof(cp)) == sizeof(cp)) ? ++ 1 : 0; ++} ++ ++static int yaffs2_rd_checkpt_validty_marker(yaffs_dev_t *dev, int head) ++{ ++ yaffs_checkpt_validty_t cp; ++ int ok; ++ ++ ok = (yaffs2_checkpt_rd(dev, &cp, sizeof(cp)) == sizeof(cp)); ++ ++ if (ok) ++ ok = (cp.struct_type == sizeof(cp)) && ++ (cp.magic == YAFFS_MAGIC) && ++ (cp.version == YAFFS_CHECKPOINT_VERSION) && ++ (cp.head == ((head) ? 1 : 0)); ++ return ok ? 1 : 0; ++} ++ ++static void yaffs2_dev_to_checkpt_dev(yaffs_checkpt_dev_t *cp, ++ yaffs_dev_t *dev) ++{ ++ cp->n_erased_blocks = dev->n_erased_blocks; ++ cp->alloc_block = dev->alloc_block; ++ cp->alloc_page = dev->alloc_page; ++ cp->n_free_chunks = dev->n_free_chunks; ++ ++ cp->n_deleted_files = dev->n_deleted_files; ++ cp->n_unlinked_files = dev->n_unlinked_files; ++ cp->n_bg_deletions = dev->n_bg_deletions; ++ cp->seq_number = dev->seq_number; ++ ++} ++ ++static void yaffs_checkpt_dev_to_dev(yaffs_dev_t *dev, ++ yaffs_checkpt_dev_t *cp) ++{ ++ dev->n_erased_blocks = cp->n_erased_blocks; ++ dev->alloc_block = cp->alloc_block; ++ dev->alloc_page = cp->alloc_page; ++ dev->n_free_chunks = cp->n_free_chunks; ++ ++ dev->n_deleted_files = cp->n_deleted_files; ++ dev->n_unlinked_files = cp->n_unlinked_files; ++ dev->n_bg_deletions = cp->n_bg_deletions; ++ dev->seq_number = cp->seq_number; ++} ++ ++ ++static int yaffs2_wr_checkpt_dev(yaffs_dev_t *dev) ++{ ++ yaffs_checkpt_dev_t cp; ++ __u32 n_bytes; ++ __u32 nBlocks = (dev->internal_end_block - dev->internal_start_block + 1); ++ ++ int ok; ++ ++ /* Write device runtime values*/ ++ yaffs2_dev_to_checkpt_dev(&cp, dev); ++ cp.struct_type = sizeof(cp); ++ ++ ok = (yaffs2_checkpt_wr(dev, &cp, sizeof(cp)) == sizeof(cp)); ++ ++ /* Write block info */ ++ if (ok) { ++ n_bytes = nBlocks * sizeof(yaffs_block_info_t); ++ ok = (yaffs2_checkpt_wr(dev, dev->block_info, n_bytes) == n_bytes); ++ } ++ ++ /* Write chunk bits */ ++ if (ok) { ++ n_bytes = nBlocks * dev->chunk_bit_stride; ++ ok = (yaffs2_checkpt_wr(dev, dev->chunk_bits, n_bytes) == n_bytes); ++ } ++ return ok ? 1 : 0; ++ ++} ++ ++static int yaffs2_rd_checkpt_dev(yaffs_dev_t *dev) ++{ ++ yaffs_checkpt_dev_t cp; ++ __u32 n_bytes; ++ __u32 nBlocks = (dev->internal_end_block - dev->internal_start_block + 1); ++ ++ int ok; ++ ++ ok = (yaffs2_checkpt_rd(dev, &cp, sizeof(cp)) == sizeof(cp)); ++ if (!ok) ++ return 0; ++ ++ if (cp.struct_type != sizeof(cp)) ++ return 0; ++ ++ ++ yaffs_checkpt_dev_to_dev(dev, &cp); ++ ++ n_bytes = nBlocks * sizeof(yaffs_block_info_t); ++ ++ ok = (yaffs2_checkpt_rd(dev, dev->block_info, n_bytes) == n_bytes); ++ ++ if (!ok) ++ return 0; ++ n_bytes = nBlocks * dev->chunk_bit_stride; ++ ++ ok = (yaffs2_checkpt_rd(dev, dev->chunk_bits, n_bytes) == n_bytes); ++ ++ return ok ? 1 : 0; ++} ++ ++static void yaffs2_obj_checkpt_obj(yaffs_checkpt_obj_t *cp, ++ yaffs_obj_t *obj) ++{ ++ ++ cp->obj_id = obj->obj_id; ++ cp->parent_id = (obj->parent) ? obj->parent->obj_id : 0; ++ cp->hdr_chunk = obj->hdr_chunk; ++ cp->variant_type = obj->variant_type; ++ cp->deleted = obj->deleted; ++ cp->soft_del = obj->soft_del; ++ cp->unlinked = obj->unlinked; ++ cp->fake = obj->fake; ++ cp->rename_allowed = obj->rename_allowed; ++ cp->unlink_allowed = obj->unlink_allowed; ++ cp->serial = obj->serial; ++ cp->n_data_chunks = obj->n_data_chunks; ++ ++ if (obj->variant_type == YAFFS_OBJECT_TYPE_FILE) ++ cp->size_or_equiv_obj = obj->variant.file_variant.file_size; ++ else if (obj->variant_type == YAFFS_OBJECT_TYPE_HARDLINK) ++ cp->size_or_equiv_obj = obj->variant.hardlink_variant.equiv_id; ++} ++ ++static int taffs2_checkpt_obj_to_obj(yaffs_obj_t *obj, yaffs_checkpt_obj_t *cp) ++{ ++ ++ yaffs_obj_t *parent; ++ ++ if (obj->variant_type != cp->variant_type) { ++ T(YAFFS_TRACE_ERROR, (TSTR("Checkpoint read object %d type %d " ++ TCONT("chunk %d does not match existing object type %d") ++ TENDSTR), cp->obj_id, cp->variant_type, cp->hdr_chunk, ++ obj->variant_type)); ++ return 0; ++ } ++ ++ obj->obj_id = cp->obj_id; ++ ++ if (cp->parent_id) ++ parent = yaffs_find_or_create_by_number( ++ obj->my_dev, ++ cp->parent_id, ++ YAFFS_OBJECT_TYPE_DIRECTORY); ++ else ++ parent = NULL; ++ ++ if (parent) { ++ if (parent->variant_type != YAFFS_OBJECT_TYPE_DIRECTORY) { ++ T(YAFFS_TRACE_ALWAYS, (TSTR("Checkpoint read object %d parent %d type %d" ++ TCONT(" chunk %d Parent type, %d, not directory") ++ TENDSTR), ++ cp->obj_id, cp->parent_id, cp->variant_type, ++ cp->hdr_chunk, parent->variant_type)); ++ return 0; ++ } ++ yaffs_add_obj_to_dir(parent, obj); ++ } ++ ++ obj->hdr_chunk = cp->hdr_chunk; ++ obj->variant_type = cp->variant_type; ++ obj->deleted = cp->deleted; ++ obj->soft_del = cp->soft_del; ++ obj->unlinked = cp->unlinked; ++ obj->fake = cp->fake; ++ obj->rename_allowed = cp->rename_allowed; ++ obj->unlink_allowed = cp->unlink_allowed; ++ obj->serial = cp->serial; ++ obj->n_data_chunks = cp->n_data_chunks; ++ ++ if (obj->variant_type == YAFFS_OBJECT_TYPE_FILE) ++ obj->variant.file_variant.file_size = cp->size_or_equiv_obj; ++ else if (obj->variant_type == YAFFS_OBJECT_TYPE_HARDLINK) ++ obj->variant.hardlink_variant.equiv_id = cp->size_or_equiv_obj; ++ ++ if (obj->hdr_chunk > 0) ++ obj->lazy_loaded = 1; ++ return 1; ++} ++ ++ ++ ++static int yaffs2_checkpt_tnode_worker(yaffs_obj_t *in, yaffs_tnode_t *tn, ++ __u32 level, int chunk_offset) ++{ ++ int i; ++ yaffs_dev_t *dev = in->my_dev; ++ int ok = 1; ++ ++ if (tn) { ++ if (level > 0) { ++ ++ for (i = 0; i < YAFFS_NTNODES_INTERNAL && ok; i++) { ++ if (tn->internal[i]) { ++ ok = yaffs2_checkpt_tnode_worker(in, ++ tn->internal[i], ++ level - 1, ++ (chunk_offset<tnode_size) == dev->tnode_size); ++ } ++ } ++ ++ return ok; ++ ++} ++ ++static int yaffs2_wr_checkpt_tnodes(yaffs_obj_t *obj) ++{ ++ __u32 endMarker = ~0; ++ int ok = 1; ++ ++ if (obj->variant_type == YAFFS_OBJECT_TYPE_FILE) { ++ ok = yaffs2_checkpt_tnode_worker(obj, ++ obj->variant.file_variant.top, ++ obj->variant.file_variant.top_level, ++ 0); ++ if (ok) ++ ok = (yaffs2_checkpt_wr(obj->my_dev, &endMarker, sizeof(endMarker)) == ++ sizeof(endMarker)); ++ } ++ ++ return ok ? 1 : 0; ++} ++ ++static int yaffs2_rd_checkpt_tnodes(yaffs_obj_t *obj) ++{ ++ __u32 baseChunk; ++ int ok = 1; ++ yaffs_dev_t *dev = obj->my_dev; ++ yaffs_file_s *fileStructPtr = &obj->variant.file_variant; ++ yaffs_tnode_t *tn; ++ int nread = 0; ++ ++ ok = (yaffs2_checkpt_rd(dev, &baseChunk, sizeof(baseChunk)) == sizeof(baseChunk)); ++ ++ while (ok && (~baseChunk)) { ++ nread++; ++ /* Read level 0 tnode */ ++ ++ ++ tn = yaffs_get_tnode(dev); ++ if (tn){ ++ ok = (yaffs2_checkpt_rd(dev, tn, dev->tnode_size) == dev->tnode_size); ++ } else ++ ok = 0; ++ ++ if (tn && ok) ++ ok = yaffs_add_find_tnode_0(dev, ++ fileStructPtr, ++ baseChunk, ++ tn) ? 1 : 0; ++ ++ if (ok) ++ ok = (yaffs2_checkpt_rd(dev, &baseChunk, sizeof(baseChunk)) == sizeof(baseChunk)); ++ ++ } ++ ++ T(YAFFS_TRACE_CHECKPOINT, ( ++ TSTR("Checkpoint read tnodes %d records, last %d. ok %d" TENDSTR), ++ nread, baseChunk, ok)); ++ ++ return ok ? 1 : 0; ++} ++ ++ ++static int yaffs2_wr_checkpt_objs(yaffs_dev_t *dev) ++{ ++ yaffs_obj_t *obj; ++ yaffs_checkpt_obj_t cp; ++ int i; ++ int ok = 1; ++ struct ylist_head *lh; ++ ++ ++ /* Iterate through the objects in each hash entry, ++ * dumping them to the checkpointing stream. ++ */ ++ ++ for (i = 0; ok && i < YAFFS_NOBJECT_BUCKETS; i++) { ++ ylist_for_each(lh, &dev->obj_bucket[i].list) { ++ if (lh) { ++ obj = ylist_entry(lh, yaffs_obj_t, hash_link); ++ if (!obj->defered_free) { ++ yaffs2_obj_checkpt_obj(&cp, obj); ++ cp.struct_type = sizeof(cp); ++ ++ T(YAFFS_TRACE_CHECKPOINT, ( ++ TSTR("Checkpoint write object %d parent %d type %d chunk %d obj addr %p" TENDSTR), ++ cp.obj_id, cp.parent_id, cp.variant_type, cp.hdr_chunk, obj)); ++ ++ ok = (yaffs2_checkpt_wr(dev, &cp, sizeof(cp)) == sizeof(cp)); ++ ++ if (ok && obj->variant_type == YAFFS_OBJECT_TYPE_FILE) ++ ok = yaffs2_wr_checkpt_tnodes(obj); ++ } ++ } ++ } ++ } ++ ++ /* Dump end of list */ ++ memset(&cp, 0xFF, sizeof(yaffs_checkpt_obj_t)); ++ cp.struct_type = sizeof(cp); ++ ++ if (ok) ++ ok = (yaffs2_checkpt_wr(dev, &cp, sizeof(cp)) == sizeof(cp)); ++ ++ return ok ? 1 : 0; ++} ++ ++static int yaffs2_rd_checkpt_objs(yaffs_dev_t *dev) ++{ ++ yaffs_obj_t *obj; ++ yaffs_checkpt_obj_t cp; ++ int ok = 1; ++ int done = 0; ++ yaffs_obj_t *hard_list = NULL; ++ ++ while (ok && !done) { ++ ok = (yaffs2_checkpt_rd(dev, &cp, sizeof(cp)) == sizeof(cp)); ++ if (cp.struct_type != sizeof(cp)) { ++ T(YAFFS_TRACE_CHECKPOINT, (TSTR("struct size %d instead of %d ok %d"TENDSTR), ++ cp.struct_type, (int)sizeof(cp), ok)); ++ ok = 0; ++ } ++ ++ T(YAFFS_TRACE_CHECKPOINT, (TSTR("Checkpoint read object %d parent %d type %d chunk %d " TENDSTR), ++ cp.obj_id, cp.parent_id, cp.variant_type, cp.hdr_chunk)); ++ ++ if (ok && cp.obj_id == ~0) ++ done = 1; ++ else if (ok) { ++ obj = yaffs_find_or_create_by_number(dev, cp.obj_id, cp.variant_type); ++ if (obj) { ++ ok = taffs2_checkpt_obj_to_obj(obj, &cp); ++ if (!ok) ++ break; ++ if (obj->variant_type == YAFFS_OBJECT_TYPE_FILE) { ++ ok = yaffs2_rd_checkpt_tnodes(obj); ++ } else if (obj->variant_type == YAFFS_OBJECT_TYPE_HARDLINK) { ++ obj->hard_links.next = ++ (struct ylist_head *) hard_list; ++ hard_list = obj; ++ } ++ } else ++ ok = 0; ++ } ++ } ++ ++ if (ok) ++ yaffs_link_fixup(dev, hard_list); ++ ++ return ok ? 1 : 0; ++} ++ ++static int yaffs2_wr_checkpt_sum(yaffs_dev_t *dev) ++{ ++ __u32 checkpt_sum; ++ int ok; ++ ++ yaffs2_get_checkpt_sum(dev, &checkpt_sum); ++ ++ ok = (yaffs2_checkpt_wr(dev, &checkpt_sum, sizeof(checkpt_sum)) == sizeof(checkpt_sum)); ++ ++ if (!ok) ++ return 0; ++ ++ return 1; ++} ++ ++static int yaffs2_rd_checkpt_sum(yaffs_dev_t *dev) ++{ ++ __u32 checkpt_sum0; ++ __u32 checkpt_sum1; ++ int ok; ++ ++ yaffs2_get_checkpt_sum(dev, &checkpt_sum0); ++ ++ ok = (yaffs2_checkpt_rd(dev, &checkpt_sum1, sizeof(checkpt_sum1)) == sizeof(checkpt_sum1)); ++ ++ if (!ok) ++ return 0; ++ ++ if (checkpt_sum0 != checkpt_sum1) ++ return 0; ++ ++ return 1; ++} ++ ++ ++static int yaffs2_wr_checkpt_data(yaffs_dev_t *dev) ++{ ++ int ok = 1; ++ ++ if (!yaffs2_checkpt_required(dev)) { ++ T(YAFFS_TRACE_CHECKPOINT, (TSTR("skipping checkpoint write" TENDSTR))); ++ ok = 0; ++ } ++ ++ if (ok) ++ ok = yaffs2_checkpt_open(dev, 1); ++ ++ if (ok) { ++ T(YAFFS_TRACE_CHECKPOINT, (TSTR("write checkpoint validity" TENDSTR))); ++ ok = yaffs2_wr_checkpt_validity_marker(dev, 1); ++ } ++ if (ok) { ++ T(YAFFS_TRACE_CHECKPOINT, (TSTR("write checkpoint device" TENDSTR))); ++ ok = yaffs2_wr_checkpt_dev(dev); ++ } ++ if (ok) { ++ T(YAFFS_TRACE_CHECKPOINT, (TSTR("write checkpoint objects" TENDSTR))); ++ ok = yaffs2_wr_checkpt_objs(dev); ++ } ++ if (ok) { ++ T(YAFFS_TRACE_CHECKPOINT, (TSTR("write checkpoint validity" TENDSTR))); ++ ok = yaffs2_wr_checkpt_validity_marker(dev, 0); ++ } ++ ++ if (ok) ++ ok = yaffs2_wr_checkpt_sum(dev); ++ ++ if (!yaffs_checkpt_close(dev)) ++ ok = 0; ++ ++ if (ok) ++ dev->is_checkpointed = 1; ++ else ++ dev->is_checkpointed = 0; ++ ++ return dev->is_checkpointed; ++} ++ ++static int yaffs2_rd_checkpt_data(yaffs_dev_t *dev) ++{ ++ int ok = 1; ++ ++ if(!dev->param.is_yaffs2) ++ ok = 0; ++ ++ if (ok && dev->param.skip_checkpt_rd) { ++ T(YAFFS_TRACE_CHECKPOINT, (TSTR("skipping checkpoint read" TENDSTR))); ++ ok = 0; ++ } ++ ++ if (ok) ++ ok = yaffs2_checkpt_open(dev, 0); /* open for read */ ++ ++ if (ok) { ++ T(YAFFS_TRACE_CHECKPOINT, (TSTR("read checkpoint validity" TENDSTR))); ++ ok = yaffs2_rd_checkpt_validty_marker(dev, 1); ++ } ++ if (ok) { ++ T(YAFFS_TRACE_CHECKPOINT, (TSTR("read checkpoint device" TENDSTR))); ++ ok = yaffs2_rd_checkpt_dev(dev); ++ } ++ if (ok) { ++ T(YAFFS_TRACE_CHECKPOINT, (TSTR("read checkpoint objects" TENDSTR))); ++ ok = yaffs2_rd_checkpt_objs(dev); ++ } ++ if (ok) { ++ T(YAFFS_TRACE_CHECKPOINT, (TSTR("read checkpoint validity" TENDSTR))); ++ ok = yaffs2_rd_checkpt_validty_marker(dev, 0); ++ } ++ ++ if (ok) { ++ ok = yaffs2_rd_checkpt_sum(dev); ++ T(YAFFS_TRACE_CHECKPOINT, (TSTR("read checkpoint checksum %d" TENDSTR), ok)); ++ } ++ ++ if (!yaffs_checkpt_close(dev)) ++ ok = 0; ++ ++ if (ok) ++ dev->is_checkpointed = 1; ++ else ++ dev->is_checkpointed = 0; ++ ++ return ok ? 1 : 0; ++ ++} ++ ++void yaffs2_checkpt_invalidate(yaffs_dev_t *dev) ++{ ++ if (dev->is_checkpointed || ++ dev->blocks_in_checkpt > 0) { ++ dev->is_checkpointed = 0; ++ yaffs2_checkpt_invalidate_stream(dev); ++ } ++ if (dev->param.sb_dirty_fn) ++ dev->param.sb_dirty_fn(dev); ++} ++ ++ ++int yaffs_checkpoint_save(yaffs_dev_t *dev) ++{ ++ ++ T(YAFFS_TRACE_CHECKPOINT, (TSTR("save entry: is_checkpointed %d"TENDSTR), dev->is_checkpointed)); ++ ++ yaffs_verify_objects(dev); ++ yaffs_verify_blocks(dev); ++ yaffs_verify_free_chunks(dev); ++ ++ if (!dev->is_checkpointed) { ++ yaffs2_checkpt_invalidate(dev); ++ yaffs2_wr_checkpt_data(dev); ++ } ++ ++ T(YAFFS_TRACE_ALWAYS, (TSTR("save exit: is_checkpointed %d"TENDSTR), dev->is_checkpointed)); ++ ++ return dev->is_checkpointed; ++} ++ ++int yaffs2_checkpt_restore(yaffs_dev_t *dev) ++{ ++ int retval; ++ T(YAFFS_TRACE_CHECKPOINT, (TSTR("restore entry: is_checkpointed %d"TENDSTR), dev->is_checkpointed)); ++ ++ retval = yaffs2_rd_checkpt_data(dev); ++ ++ if (dev->is_checkpointed) { ++ yaffs_verify_objects(dev); ++ yaffs_verify_blocks(dev); ++ yaffs_verify_free_chunks(dev); ++ } ++ ++ T(YAFFS_TRACE_CHECKPOINT, (TSTR("restore exit: is_checkpointed %d"TENDSTR), dev->is_checkpointed)); ++ ++ return retval; ++} ++ ++int yaffs2_handle_hole(yaffs_obj_t *obj, loff_t new_size) ++{ ++ /* if newsSize > oldFileSize. ++ * We're going to be writing a hole. ++ * If the hole is small then write zeros otherwise write a start of hole marker. ++ */ ++ ++ ++ loff_t oldFileSize; ++ int increase; ++ int smallHole ; ++ int result = YAFFS_OK; ++ yaffs_dev_t *dev = NULL; ++ ++ __u8 *localBuffer = NULL; ++ ++ int smallIncreaseOk = 0; ++ ++ if(!obj) ++ return YAFFS_FAIL; ++ ++ if(obj->variant_type != YAFFS_OBJECT_TYPE_FILE) ++ return YAFFS_FAIL; ++ ++ dev = obj->my_dev; ++ ++ /* Bail out if not yaffs2 mode */ ++ if(!dev->param.is_yaffs2) ++ return YAFFS_OK; ++ ++ oldFileSize = obj->variant.file_variant.file_size; ++ ++ if (new_size <= oldFileSize) ++ return YAFFS_OK; ++ ++ increase = new_size - oldFileSize; ++ ++ if(increase < YAFFS_SMALL_HOLE_THRESHOLD * dev->data_bytes_per_chunk && ++ yaffs_check_alloc_available(dev, YAFFS_SMALL_HOLE_THRESHOLD + 1)) ++ smallHole = 1; ++ else ++ smallHole = 0; ++ ++ if(smallHole) ++ localBuffer= yaffs_get_temp_buffer(dev, __LINE__); ++ ++ if(localBuffer){ ++ /* fill hole with zero bytes */ ++ int pos = oldFileSize; ++ int thisWrite; ++ int written; ++ memset(localBuffer,0,dev->data_bytes_per_chunk); ++ smallIncreaseOk = 1; ++ ++ while(increase > 0 && smallIncreaseOk){ ++ thisWrite = increase; ++ if(thisWrite > dev->data_bytes_per_chunk) ++ thisWrite = dev->data_bytes_per_chunk; ++ written = yaffs_do_file_wr(obj,localBuffer,pos,thisWrite,0); ++ if(written == thisWrite){ ++ pos += thisWrite; ++ increase -= thisWrite; ++ } else ++ smallIncreaseOk = 0; ++ } ++ ++ yaffs_release_temp_buffer(dev,localBuffer,__LINE__); ++ ++ /* If we were out of space then reverse any chunks we've added */ ++ if(!smallIncreaseOk) ++ yaffs_resize_file_down(obj, oldFileSize); ++ } ++ ++ if (!smallIncreaseOk && ++ obj->parent && ++ obj->parent->obj_id != YAFFS_OBJECTID_UNLINKED && ++ obj->parent->obj_id != YAFFS_OBJECTID_DELETED){ ++ /* Write a hole start header with the old file size */ ++ yaffs_update_oh(obj, NULL, 0, 1, 0, NULL); ++ } ++ ++ return result; ++ ++} ++ ++ ++typedef struct { ++ int seq; ++ int block; ++} yaffs_BlockIndex; ++ ++ ++static int yaffs2_ybicmp(const void *a, const void *b) ++{ ++ register int aseq = ((yaffs_BlockIndex *)a)->seq; ++ register int bseq = ((yaffs_BlockIndex *)b)->seq; ++ register int ablock = ((yaffs_BlockIndex *)a)->block; ++ register int bblock = ((yaffs_BlockIndex *)b)->block; ++ if (aseq == bseq) ++ return ablock - bblock; ++ else ++ return aseq - bseq; ++} ++ ++int yaffs2_scan_backwards(yaffs_dev_t *dev) ++{ ++ yaffs_ext_tags tags; ++ int blk; ++ int blockIterator; ++ int startIterator; ++ int endIterator; ++ int nBlocksToScan = 0; ++ ++ int chunk; ++ int result; ++ int c; ++ int deleted; ++ yaffs_block_state_t state; ++ yaffs_obj_t *hard_list = NULL; ++ yaffs_block_info_t *bi; ++ __u32 seq_number; ++ yaffs_obj_header *oh; ++ yaffs_obj_t *in; ++ yaffs_obj_t *parent; ++ int nBlocks = dev->internal_end_block - dev->internal_start_block + 1; ++ int itsUnlinked; ++ __u8 *chunkData; ++ ++ int file_size; ++ int is_shrink; ++ int foundChunksInBlock; ++ int equiv_id; ++ int alloc_failed = 0; ++ ++ ++ yaffs_BlockIndex *blockIndex = NULL; ++ int altBlockIndex = 0; ++ ++ T(YAFFS_TRACE_SCAN, ++ (TSTR ++ ("yaffs2_scan_backwards starts intstartblk %d intendblk %d..." ++ TENDSTR), dev->internal_start_block, dev->internal_end_block)); ++ ++ ++ dev->seq_number = YAFFS_LOWEST_SEQUENCE_NUMBER; ++ ++ blockIndex = YMALLOC(nBlocks * sizeof(yaffs_BlockIndex)); ++ ++ if (!blockIndex) { ++ blockIndex = YMALLOC_ALT(nBlocks * sizeof(yaffs_BlockIndex)); ++ altBlockIndex = 1; ++ } ++ ++ if (!blockIndex) { ++ T(YAFFS_TRACE_SCAN, ++ (TSTR("yaffs2_scan_backwards() could not allocate block index!" TENDSTR))); ++ return YAFFS_FAIL; ++ } ++ ++ dev->blocks_in_checkpt = 0; ++ ++ chunkData = yaffs_get_temp_buffer(dev, __LINE__); ++ ++ /* Scan all the blocks to determine their state */ ++ bi = dev->block_info; ++ for (blk = dev->internal_start_block; blk <= dev->internal_end_block; blk++) { ++ yaffs_clear_chunk_bits(dev, blk); ++ bi->pages_in_use = 0; ++ bi->soft_del_pages = 0; ++ ++ yaffs_query_init_block_state(dev, blk, &state, &seq_number); ++ ++ bi->block_state = state; ++ bi->seq_number = seq_number; ++ ++ if (bi->seq_number == YAFFS_SEQUENCE_CHECKPOINT_DATA) ++ bi->block_state = state = YAFFS_BLOCK_STATE_CHECKPOINT; ++ if (bi->seq_number == YAFFS_SEQUENCE_BAD_BLOCK) ++ bi->block_state = state = YAFFS_BLOCK_STATE_DEAD; ++ ++ T(YAFFS_TRACE_SCAN_DEBUG, ++ (TSTR("Block scanning block %d state %d seq %d" TENDSTR), blk, ++ state, seq_number)); ++ ++ ++ if (state == YAFFS_BLOCK_STATE_CHECKPOINT) { ++ dev->blocks_in_checkpt++; ++ ++ } else if (state == YAFFS_BLOCK_STATE_DEAD) { ++ T(YAFFS_TRACE_BAD_BLOCKS, ++ (TSTR("block %d is bad" TENDSTR), blk)); ++ } else if (state == YAFFS_BLOCK_STATE_EMPTY) { ++ T(YAFFS_TRACE_SCAN_DEBUG, ++ (TSTR("Block empty " TENDSTR))); ++ dev->n_erased_blocks++; ++ dev->n_free_chunks += dev->param.chunks_per_block; ++ } else if (state == YAFFS_BLOCK_STATE_NEEDS_SCANNING) { ++ ++ /* Determine the highest sequence number */ ++ if (seq_number >= YAFFS_LOWEST_SEQUENCE_NUMBER && ++ seq_number < YAFFS_HIGHEST_SEQUENCE_NUMBER) { ++ ++ blockIndex[nBlocksToScan].seq = seq_number; ++ blockIndex[nBlocksToScan].block = blk; ++ ++ nBlocksToScan++; ++ ++ if (seq_number >= dev->seq_number) ++ dev->seq_number = seq_number; ++ } else { ++ /* TODO: Nasty sequence number! */ ++ T(YAFFS_TRACE_SCAN, ++ (TSTR ++ ("Block scanning block %d has bad sequence number %d" ++ TENDSTR), blk, seq_number)); ++ ++ } ++ } ++ bi++; ++ } ++ ++ T(YAFFS_TRACE_SCAN, ++ (TSTR("%d blocks to be sorted..." TENDSTR), nBlocksToScan)); ++ ++ ++ ++ YYIELD(); ++ ++ /* Sort the blocks by sequence number*/ ++ yaffs_qsort(blockIndex, nBlocksToScan, sizeof(yaffs_BlockIndex), yaffs2_ybicmp); ++ ++ YYIELD(); ++ ++ T(YAFFS_TRACE_SCAN, (TSTR("...done" TENDSTR))); ++ ++ /* Now scan the blocks looking at the data. */ ++ startIterator = 0; ++ endIterator = nBlocksToScan - 1; ++ T(YAFFS_TRACE_SCAN_DEBUG, ++ (TSTR("%d blocks to be scanned" TENDSTR), nBlocksToScan)); ++ ++ /* For each block.... backwards */ ++ for (blockIterator = endIterator; !alloc_failed && blockIterator >= startIterator; ++ blockIterator--) { ++ /* Cooperative multitasking! This loop can run for so ++ long that watchdog timers expire. */ ++ YYIELD(); ++ ++ /* get the block to scan in the correct order */ ++ blk = blockIndex[blockIterator].block; ++ ++ bi = yaffs_get_block_info(dev, blk); ++ ++ ++ state = bi->block_state; ++ ++ deleted = 0; ++ ++ /* For each chunk in each block that needs scanning.... */ ++ foundChunksInBlock = 0; ++ for (c = dev->param.chunks_per_block - 1; ++ !alloc_failed && c >= 0 && ++ (state == YAFFS_BLOCK_STATE_NEEDS_SCANNING || ++ state == YAFFS_BLOCK_STATE_ALLOCATING); c--) { ++ /* Scan backwards... ++ * Read the tags and decide what to do ++ */ ++ ++ chunk = blk * dev->param.chunks_per_block + c; ++ ++ result = yaffs_rd_chunk_tags_nand(dev, chunk, NULL, ++ &tags); ++ ++ /* Let's have a good look at this chunk... */ ++ ++ if (!tags.chunk_used) { ++ /* An unassigned chunk in the block. ++ * If there are used chunks after this one, then ++ * it is a chunk that was skipped due to failing the erased ++ * check. Just skip it so that it can be deleted. ++ * But, more typically, We get here when this is an unallocated ++ * chunk and his means that either the block is empty or ++ * this is the one being allocated from ++ */ ++ ++ if (foundChunksInBlock) { ++ /* This is a chunk that was skipped due to failing the erased check */ ++ } else if (c == 0) { ++ /* We're looking at the first chunk in the block so the block is unused */ ++ state = YAFFS_BLOCK_STATE_EMPTY; ++ dev->n_erased_blocks++; ++ } else { ++ if (state == YAFFS_BLOCK_STATE_NEEDS_SCANNING || ++ state == YAFFS_BLOCK_STATE_ALLOCATING) { ++ if (dev->seq_number == bi->seq_number) { ++ /* this is the block being allocated from */ ++ ++ T(YAFFS_TRACE_SCAN, ++ (TSTR ++ (" Allocating from %d %d" ++ TENDSTR), blk, c)); ++ ++ state = YAFFS_BLOCK_STATE_ALLOCATING; ++ dev->alloc_block = blk; ++ dev->alloc_page = c; ++ dev->alloc_block_finder = blk; ++ } else { ++ /* This is a partially written block that is not ++ * the current allocation block. ++ */ ++ ++ T(YAFFS_TRACE_SCAN, ++ (TSTR("Partially written block %d detected" TENDSTR), ++ blk)); ++ } ++ } ++ } ++ ++ dev->n_free_chunks++; ++ ++ } else if (tags.ecc_result == YAFFS_ECC_RESULT_UNFIXED) { ++ T(YAFFS_TRACE_SCAN, ++ (TSTR(" Unfixed ECC in chunk(%d:%d), chunk ignored"TENDSTR), ++ blk, c)); ++ ++ dev->n_free_chunks++; ++ ++ } else if (tags.obj_id > YAFFS_MAX_OBJECT_ID || ++ tags.chunk_id > YAFFS_MAX_CHUNK_ID || ++ (tags.chunk_id > 0 && tags.n_bytes > dev->data_bytes_per_chunk) || ++ tags.seq_number != bi->seq_number ) { ++ T(YAFFS_TRACE_SCAN, ++ (TSTR("Chunk (%d:%d) with bad tags:obj = %d, chunk_id = %d, n_bytes = %d, ignored"TENDSTR), ++ blk, c,tags.obj_id, tags.chunk_id, tags.n_bytes)); ++ ++ dev->n_free_chunks++; ++ ++ } else if (tags.chunk_id > 0) { ++ /* chunk_id > 0 so it is a data chunk... */ ++ unsigned int endpos; ++ __u32 chunkBase = ++ (tags.chunk_id - 1) * dev->data_bytes_per_chunk; ++ ++ foundChunksInBlock = 1; ++ ++ ++ yaffs_set_chunk_bit(dev, blk, c); ++ bi->pages_in_use++; ++ ++ in = yaffs_find_or_create_by_number(dev, ++ tags. ++ obj_id, ++ YAFFS_OBJECT_TYPE_FILE); ++ if (!in) { ++ /* Out of memory */ ++ alloc_failed = 1; ++ } ++ ++ if (in && ++ in->variant_type == YAFFS_OBJECT_TYPE_FILE ++ && chunkBase < in->variant.file_variant.shrink_size) { ++ /* This has not been invalidated by a resize */ ++ if (!yaffs_put_chunk_in_file(in, tags.chunk_id, chunk, -1)) { ++ alloc_failed = 1; ++ } ++ ++ /* File size is calculated by looking at the data chunks if we have not ++ * seen an object header yet. Stop this practice once we find an object header. ++ */ ++ endpos = chunkBase + tags.n_bytes; ++ ++ if (!in->valid && /* have not got an object header yet */ ++ in->variant.file_variant.scanned_size < endpos) { ++ in->variant.file_variant.scanned_size = endpos; ++ in->variant.file_variant.file_size = endpos; ++ } ++ ++ } else if (in) { ++ /* This chunk has been invalidated by a resize, or a past file deletion ++ * so delete the chunk*/ ++ yaffs_chunk_del(dev, chunk, 1, __LINE__); ++ ++ } ++ } else { ++ /* chunk_id == 0, so it is an ObjectHeader. ++ * Thus, we read in the object header and make the object ++ */ ++ foundChunksInBlock = 1; ++ ++ yaffs_set_chunk_bit(dev, blk, c); ++ bi->pages_in_use++; ++ ++ oh = NULL; ++ in = NULL; ++ ++ if (tags.extra_available) { ++ in = yaffs_find_or_create_by_number(dev, ++ tags.obj_id, ++ tags.extra_obj_type); ++ if (!in) ++ alloc_failed = 1; ++ } ++ ++ if (!in || ++ (!in->valid && dev->param.disable_lazy_load) || ++ tags.extra_shadows || ++ (!in->valid && ++ (tags.obj_id == YAFFS_OBJECTID_ROOT || ++ tags.obj_id == YAFFS_OBJECTID_LOSTNFOUND))) { ++ ++ /* If we don't have valid info then we need to read the chunk ++ * TODO In future we can probably defer reading the chunk and ++ * living with invalid data until needed. ++ */ ++ ++ result = yaffs_rd_chunk_tags_nand(dev, ++ chunk, ++ chunkData, ++ NULL); ++ ++ oh = (yaffs_obj_header *) chunkData; ++ ++ if (dev->param.inband_tags) { ++ /* Fix up the header if they got corrupted by inband tags */ ++ oh->shadows_obj = oh->inband_shadowed_obj_id; ++ oh->is_shrink = oh->inband_is_shrink; ++ } ++ ++ if (!in) { ++ in = yaffs_find_or_create_by_number(dev, tags.obj_id, oh->type); ++ if (!in) ++ alloc_failed = 1; ++ } ++ ++ } ++ ++ if (!in) { ++ /* TODO Hoosterman we have a problem! */ ++ T(YAFFS_TRACE_ERROR, ++ (TSTR ++ ("yaffs tragedy: Could not make object for object %d at chunk %d during scan" ++ TENDSTR), tags.obj_id, chunk)); ++ continue; ++ } ++ ++ if (in->valid) { ++ /* We have already filled this one. ++ * We have a duplicate that will be discarded, but ++ * we first have to suck out resize info if it is a file. ++ */ ++ ++ if ((in->variant_type == YAFFS_OBJECT_TYPE_FILE) && ++ ((oh && ++ oh->type == YAFFS_OBJECT_TYPE_FILE) || ++ (tags.extra_available && ++ tags.extra_obj_type == YAFFS_OBJECT_TYPE_FILE))) { ++ __u32 thisSize = ++ (oh) ? oh->file_size : tags. ++ extra_length; ++ __u32 parent_obj_id = ++ (oh) ? oh-> ++ parent_obj_id : tags. ++ extra_parent_id; ++ ++ ++ is_shrink = ++ (oh) ? oh->is_shrink : tags. ++ extra_is_shrink; ++ ++ /* If it is deleted (unlinked at start also means deleted) ++ * we treat the file size as being zeroed at this point. ++ */ ++ if (parent_obj_id == ++ YAFFS_OBJECTID_DELETED ++ || parent_obj_id == ++ YAFFS_OBJECTID_UNLINKED) { ++ thisSize = 0; ++ is_shrink = 1; ++ } ++ ++ if (is_shrink && in->variant.file_variant.shrink_size > thisSize) ++ in->variant.file_variant.shrink_size = thisSize; ++ ++ if (is_shrink) ++ bi->has_shrink_hdr = 1; ++ ++ } ++ /* Use existing - destroy this one. */ ++ yaffs_chunk_del(dev, chunk, 1, __LINE__); ++ ++ } ++ ++ if (!in->valid && in->variant_type != ++ (oh ? oh->type : tags.extra_obj_type)) ++ T(YAFFS_TRACE_ERROR, ( ++ TSTR("yaffs tragedy: Bad object type, " ++ TCONT("%d != %d, for object %d at chunk ") ++ TCONT("%d during scan") ++ TENDSTR), oh ? ++ oh->type : tags.extra_obj_type, ++ in->variant_type, tags.obj_id, ++ chunk)); ++ ++ if (!in->valid && ++ (tags.obj_id == YAFFS_OBJECTID_ROOT || ++ tags.obj_id == ++ YAFFS_OBJECTID_LOSTNFOUND)) { ++ /* We only load some info, don't fiddle with directory structure */ ++ in->valid = 1; ++ ++ if (oh) { ++ ++ in->yst_mode = oh->yst_mode; ++#ifdef CONFIG_YAFFS_WINCE ++ in->win_atime[0] = oh->win_atime[0]; ++ in->win_ctime[0] = oh->win_ctime[0]; ++ in->win_mtime[0] = oh->win_mtime[0]; ++ in->win_atime[1] = oh->win_atime[1]; ++ in->win_ctime[1] = oh->win_ctime[1]; ++ in->win_mtime[1] = oh->win_mtime[1]; ++#else ++ in->yst_uid = oh->yst_uid; ++ in->yst_gid = oh->yst_gid; ++ in->yst_atime = oh->yst_atime; ++ in->yst_mtime = oh->yst_mtime; ++ in->yst_ctime = oh->yst_ctime; ++ in->yst_rdev = oh->yst_rdev; ++ ++ in->lazy_loaded = 0; ++ ++#endif ++ } else ++ in->lazy_loaded = 1; ++ ++ in->hdr_chunk = chunk; ++ ++ } else if (!in->valid) { ++ /* we need to load this info */ ++ ++ in->valid = 1; ++ in->hdr_chunk = chunk; ++ ++ if (oh) { ++ in->variant_type = oh->type; ++ ++ in->yst_mode = oh->yst_mode; ++#ifdef CONFIG_YAFFS_WINCE ++ in->win_atime[0] = oh->win_atime[0]; ++ in->win_ctime[0] = oh->win_ctime[0]; ++ in->win_mtime[0] = oh->win_mtime[0]; ++ in->win_atime[1] = oh->win_atime[1]; ++ in->win_ctime[1] = oh->win_ctime[1]; ++ in->win_mtime[1] = oh->win_mtime[1]; ++#else ++ in->yst_uid = oh->yst_uid; ++ in->yst_gid = oh->yst_gid; ++ in->yst_atime = oh->yst_atime; ++ in->yst_mtime = oh->yst_mtime; ++ in->yst_ctime = oh->yst_ctime; ++ in->yst_rdev = oh->yst_rdev; ++#endif ++ ++ if (oh->shadows_obj > 0) ++ yaffs_handle_shadowed_obj(dev, ++ oh-> ++ shadows_obj, ++ 1); ++ ++ ++ ++ yaffs_set_obj_name_from_oh(in, oh); ++ parent = ++ yaffs_find_or_create_by_number ++ (dev, oh->parent_obj_id, ++ YAFFS_OBJECT_TYPE_DIRECTORY); ++ ++ file_size = oh->file_size; ++ is_shrink = oh->is_shrink; ++ equiv_id = oh->equiv_id; ++ ++ } else { ++ in->variant_type = tags.extra_obj_type; ++ parent = ++ yaffs_find_or_create_by_number ++ (dev, tags.extra_parent_id, ++ YAFFS_OBJECT_TYPE_DIRECTORY); ++ file_size = tags.extra_length; ++ is_shrink = tags.extra_is_shrink; ++ equiv_id = tags.extra_equiv_id; ++ in->lazy_loaded = 1; ++ ++ } ++ in->dirty = 0; ++ ++ if (!parent) ++ alloc_failed = 1; ++ ++ /* directory stuff... ++ * hook up to parent ++ */ ++ ++ if (parent && parent->variant_type == ++ YAFFS_OBJECT_TYPE_UNKNOWN) { ++ /* Set up as a directory */ ++ parent->variant_type = ++ YAFFS_OBJECT_TYPE_DIRECTORY; ++ YINIT_LIST_HEAD(&parent->variant. ++ dir_variant. ++ children); ++ } else if (!parent || parent->variant_type != ++ YAFFS_OBJECT_TYPE_DIRECTORY) { ++ /* Hoosterman, another problem.... ++ * We're trying to use a non-directory as a directory ++ */ ++ ++ T(YAFFS_TRACE_ERROR, ++ (TSTR ++ ("yaffs tragedy: attempting to use non-directory as a directory in scan. Put in lost+found." ++ TENDSTR))); ++ parent = dev->lost_n_found; ++ } ++ ++ yaffs_add_obj_to_dir(parent, in); ++ ++ itsUnlinked = (parent == dev->del_dir) || ++ (parent == dev->unlinked_dir); ++ ++ if (is_shrink) { ++ /* Mark the block as having a shrinkHeader */ ++ bi->has_shrink_hdr = 1; ++ } ++ ++ /* Note re hardlinks. ++ * Since we might scan a hardlink before its equivalent object is scanned ++ * we put them all in a list. ++ * After scanning is complete, we should have all the objects, so we run ++ * through this list and fix up all the chains. ++ */ ++ ++ switch (in->variant_type) { ++ case YAFFS_OBJECT_TYPE_UNKNOWN: ++ /* Todo got a problem */ ++ break; ++ case YAFFS_OBJECT_TYPE_FILE: ++ ++ if (in->variant.file_variant. ++ scanned_size < file_size) { ++ /* This covers the case where the file size is greater ++ * than where the data is ++ * This will happen if the file is resized to be larger ++ * than its current data extents. ++ */ ++ in->variant.file_variant.file_size = file_size; ++ in->variant.file_variant.scanned_size = file_size; ++ } ++ ++ if (in->variant.file_variant.shrink_size > file_size) ++ in->variant.file_variant.shrink_size = file_size; ++ ++ ++ break; ++ case YAFFS_OBJECT_TYPE_HARDLINK: ++ if (!itsUnlinked) { ++ in->variant.hardlink_variant.equiv_id = ++ equiv_id; ++ in->hard_links.next = ++ (struct ylist_head *) hard_list; ++ hard_list = in; ++ } ++ break; ++ case YAFFS_OBJECT_TYPE_DIRECTORY: ++ /* Do nothing */ ++ break; ++ case YAFFS_OBJECT_TYPE_SPECIAL: ++ /* Do nothing */ ++ break; ++ case YAFFS_OBJECT_TYPE_SYMLINK: ++ if (oh) { ++ in->variant.symlink_variant.alias = ++ yaffs_clone_str(oh->alias); ++ if (!in->variant.symlink_variant.alias) ++ alloc_failed = 1; ++ } ++ break; ++ } ++ ++ } ++ ++ } ++ ++ } /* End of scanning for each chunk */ ++ ++ if (state == YAFFS_BLOCK_STATE_NEEDS_SCANNING) { ++ /* If we got this far while scanning, then the block is fully allocated. */ ++ state = YAFFS_BLOCK_STATE_FULL; ++ } ++ ++ ++ bi->block_state = state; ++ ++ /* Now let's see if it was dirty */ ++ if (bi->pages_in_use == 0 && ++ !bi->has_shrink_hdr && ++ bi->block_state == YAFFS_BLOCK_STATE_FULL) { ++ yaffs_block_became_dirty(dev, blk); ++ } ++ ++ } ++ ++ yaffs_skip_rest_of_block(dev); ++ ++ if (altBlockIndex) ++ YFREE_ALT(blockIndex); ++ else ++ YFREE(blockIndex); ++ ++ /* Ok, we've done all the scanning. ++ * Fix up the hard link chains. ++ * We should now have scanned all the objects, now it's time to add these ++ * hardlinks. ++ */ ++ yaffs_link_fixup(dev, hard_list); ++ ++ ++ yaffs_release_temp_buffer(dev, chunkData, __LINE__); ++ ++ if (alloc_failed) ++ return YAFFS_FAIL; ++ ++ T(YAFFS_TRACE_SCAN, (TSTR("yaffs2_scan_backwards ends" TENDSTR))); ++ ++ return YAFFS_OK; ++} +--- /dev/null ++++ b/fs/yaffs2/yaffs_yaffs2.h +@@ -0,0 +1,36 @@ ++/* ++ * YAFFS: Yet Another Flash File System. A NAND-flash specific file system. ++ * ++ * Copyright (C) 2002-2010 Aleph One Ltd. ++ * for Toby Churchill Ltd and Brightstar Engineering ++ * ++ * Created by Charles Manning ++ * ++ * This program is free software; you can redistribute it and/or modify ++ * it under the terms of the GNU General Public License version 2 as ++ * published by the Free Software Foundation. ++ */ ++ ++#ifndef __YAFFS_YAFFS2_H__ ++#define __YAFFS_YAFFS2_H__ ++ ++#include "yaffs_guts.h" ++ ++void yaffs_calc_oldest_dirty_seq(yaffs_dev_t *dev); ++void yaffs2_find_oldest_dirty_seq(yaffs_dev_t *dev); ++void yaffs2_clear_oldest_dirty_seq(yaffs_dev_t *dev, yaffs_block_info_t *bi); ++void yaffs2_update_oldest_dirty_seq(yaffs_dev_t *dev, unsigned block_no, yaffs_block_info_t *bi); ++int yaffs_block_ok_for_gc(yaffs_dev_t *dev, yaffs_block_info_t *bi); ++__u32 yaffs2_find_refresh_block(yaffs_dev_t *dev); ++int yaffs2_checkpt_required(yaffs_dev_t *dev); ++int yaffs_calc_checkpt_blocks_required(yaffs_dev_t *dev); ++ ++ ++void yaffs2_checkpt_invalidate(yaffs_dev_t *dev); ++int yaffs2_checkpt_save(yaffs_dev_t *dev); ++int yaffs2_checkpt_restore(yaffs_dev_t *dev); ++ ++int yaffs2_handle_hole(yaffs_obj_t *obj, loff_t new_size); ++int yaffs2_scan_backwards(yaffs_dev_t *dev); ++ ++#endif +--- a/fs/yaffs2/yportenv.h ++++ b/fs/yaffs2/yportenv.h +@@ -1,7 +1,7 @@ + /* + * YAFFS: Yet another Flash File System . A NAND-flash specific file system. + * +- * Copyright (C) 2002-2007 Aleph One Ltd. ++ * Copyright (C) 2002-2010 Aleph One Ltd. + * for Toby Churchill Ltd and Brightstar Engineering + * + * Created by Charles Manning +@@ -41,12 +41,14 @@ + #if (LINUX_VERSION_CODE < KERNEL_VERSION(2, 6, 19)) + #include + #endif ++ + #include + #include + #include + #include + #include + #include ++#include + + #define YCHAR char + #define YUCHAR unsigned char +@@ -55,11 +57,11 @@ + #define yaffs_strcpy(a, b) strcpy(a, b) + #define yaffs_strncpy(a, b, c) strncpy(a, b, c) + #define yaffs_strncmp(a, b, c) strncmp(a, b, c) +-#define yaffs_strlen(s) strlen(s) ++#define yaffs_strnlen(s,m) strnlen(s,m) + #define yaffs_sprintf sprintf + #define yaffs_toupper(a) toupper(a) + +-#define Y_INLINE inline ++#define Y_INLINE __inline__ + + #define YAFFS_LOSTNFOUND_NAME "lost+found" + #define YAFFS_LOSTNFOUND_PREFIX "obj" +@@ -71,11 +73,11 @@ + #define YFREE_ALT(x) vfree(x) + #define YMALLOC_DMA(x) YMALLOC(x) + +-/* KR - added for use in scan so processes aren't blocked indefinitely. */ + #define YYIELD() schedule() ++#define Y_DUMP_STACK() dump_stack() + +-#define YAFFS_ROOT_MODE 0666 +-#define YAFFS_LOSTNFOUND_MODE 0666 ++#define YAFFS_ROOT_MODE 0755 ++#define YAFFS_LOSTNFOUND_MODE 0700 + + #if (LINUX_VERSION_CODE > KERNEL_VERSION(2, 5, 0)) + #define Y_CURRENT_TIME CURRENT_TIME.tv_sec +@@ -85,19 +87,14 @@ + #define Y_TIME_CONVERT(x) (x) + #endif + +-#define yaffs_SumCompare(x, y) ((x) == (y)) ++#define yaffs_sum_cmp(x, y) ((x) == (y)) + #define yaffs_strcmp(a, b) strcmp(a, b) + + #define TENDSTR "\n" +-#define TSTR(x) KERN_WARNING x ++#define TSTR(x) KERN_DEBUG x + #define TCONT(x) x + #define TOUT(p) printk p + +-#define yaffs_trace(mask, fmt, args...) \ +- do { if ((mask) & (yaffs_traceMask|YAFFS_TRACE_ERROR)) \ +- printk(KERN_WARNING "yaffs: " fmt, ## args); \ +- } while (0) +- + #define compile_time_assertion(assertion) \ + ({ int x = __builtin_choose_expr(assertion, 0, (void)0); (void) x; }) + +@@ -116,7 +113,6 @@ + #include "stdio.h" + #include "string.h" + +-#include "devextras.h" + + #define YMALLOC(x) malloc(x) + #define YFREE(x) free(x) +@@ -129,7 +125,7 @@ + #define yaffs_strcat(a, b) strcat(a, b) + #define yaffs_strcpy(a, b) strcpy(a, b) + #define yaffs_strncpy(a, b, c) strncpy(a, b, c) +-#define yaffs_strlen(s) strlen(s) ++#define yaffs_strnlen(s,m) strnlen(s,m) + #define yaffs_sprintf sprintf + #define yaffs_toupper(a) toupper(a) + +@@ -146,10 +142,10 @@ + #define YAFFS_LOSTNFOUND_PREFIX "obj" + /* #define YPRINTF(x) printf x */ + +-#define YAFFS_ROOT_MODE 0666 +-#define YAFFS_LOSTNFOUND_MODE 0666 ++#define YAFFS_ROOT_MODE 0755 ++#define YAFFS_LOSTNFOUND_MODE 0700 + +-#define yaffs_SumCompare(x, y) ((x) == (y)) ++#define yaffs_sum_cmp(x, y) ((x) == (y)) + #define yaffs_strcmp(a, b) strcmp(a, b) + + #else +@@ -158,46 +154,180 @@ + + #endif + +-/* see yaffs_fs.c */ +-extern unsigned int yaffs_traceMask; +-extern unsigned int yaffs_wr_attempts; ++#if defined(CONFIG_YAFFS_DIRECT) || defined(CONFIG_YAFFS_WINCE) + +-/* +- * Tracing flags. +- * The flags masked in YAFFS_TRACE_ALWAYS are always traced. +- */ ++#ifdef CONFIG_YAFFSFS_PROVIDE_VALUES ++ ++#ifndef O_RDONLY ++#define O_RDONLY 00 ++#endif ++ ++#ifndef O_WRONLY ++#define O_WRONLY 01 ++#endif ++ ++#ifndef O_RDWR ++#define O_RDWR 02 ++#endif ++ ++#ifndef O_CREAT ++#define O_CREAT 0100 ++#endif ++ ++#ifndef O_EXCL ++#define O_EXCL 0200 ++#endif ++ ++#ifndef O_TRUNC ++#define O_TRUNC 01000 ++#endif ++ ++#ifndef O_APPEND ++#define O_APPEND 02000 ++#endif ++ ++#ifndef SEEK_SET ++#define SEEK_SET 0 ++#endif ++ ++#ifndef SEEK_CUR ++#define SEEK_CUR 1 ++#endif ++ ++#ifndef SEEK_END ++#define SEEK_END 2 ++#endif ++ ++#ifndef EBUSY ++#define EBUSY 16 ++#endif ++ ++#ifndef ENODEV ++#define ENODEV 19 ++#endif ++ ++#ifndef EINVAL ++#define EINVAL 22 ++#endif ++ ++#ifndef EBADF ++#define EBADF 9 ++#endif ++ ++#ifndef EACCES ++#define EACCES 13 ++#endif ++ ++#ifndef EXDEV ++#define EXDEV 18 ++#endif ++ ++#ifndef ENOENT ++#define ENOENT 2 ++#endif ++ ++#ifndef ENOSPC ++#define ENOSPC 28 ++#endif ++ ++#ifndef ERANGE ++#define ERANGE 34 ++#endif ++ ++#ifndef ENODATA ++#define ENODATA 61 ++#endif ++ ++#ifndef ENOTEMPTY ++#define ENOTEMPTY 39 ++#endif ++ ++#ifndef ENAMETOOLONG ++#define ENAMETOOLONG 36 ++#endif ++ ++#ifndef ENOMEM ++#define ENOMEM 12 ++#endif ++ ++#ifndef EEXIST ++#define EEXIST 17 ++#endif ++ ++#ifndef ENOTDIR ++#define ENOTDIR 20 ++#endif ++ ++#ifndef EISDIR ++#define EISDIR 21 ++#endif ++ ++ ++// Mode flags ++ ++#ifndef S_IFMT ++#define S_IFMT 0170000 ++#endif ++ ++#ifndef S_IFLNK ++#define S_IFLNK 0120000 ++#endif + +-#define YAFFS_TRACE_OS 0x00000002 +-#define YAFFS_TRACE_ALLOCATE 0x00000004 +-#define YAFFS_TRACE_SCAN 0x00000008 +-#define YAFFS_TRACE_BAD_BLOCKS 0x00000010 +-#define YAFFS_TRACE_ERASE 0x00000020 +-#define YAFFS_TRACE_GC 0x00000040 +-#define YAFFS_TRACE_WRITE 0x00000080 +-#define YAFFS_TRACE_TRACING 0x00000100 +-#define YAFFS_TRACE_DELETION 0x00000200 +-#define YAFFS_TRACE_BUFFERS 0x00000400 +-#define YAFFS_TRACE_NANDACCESS 0x00000800 +-#define YAFFS_TRACE_GC_DETAIL 0x00001000 +-#define YAFFS_TRACE_SCAN_DEBUG 0x00002000 +-#define YAFFS_TRACE_MTD 0x00004000 +-#define YAFFS_TRACE_CHECKPOINT 0x00008000 +- +-#define YAFFS_TRACE_VERIFY 0x00010000 +-#define YAFFS_TRACE_VERIFY_NAND 0x00020000 +-#define YAFFS_TRACE_VERIFY_FULL 0x00040000 +-#define YAFFS_TRACE_VERIFY_ALL 0x000F0000 +- +- +-#define YAFFS_TRACE_ERROR 0x40000000 +-#define YAFFS_TRACE_BUG 0x80000000 +-#define YAFFS_TRACE_ALWAYS 0xF0000000 ++#ifndef S_IFDIR ++#define S_IFDIR 0040000 ++#endif ++ ++#ifndef S_IFREG ++#define S_IFREG 0100000 ++#endif + ++#ifndef S_IREAD ++#define S_IREAD 0000400 ++#endif ++ ++#ifndef S_IWRITE ++#define S_IWRITE 0000200 ++#endif + +-#define T(mask, p) do { if ((mask) & (yaffs_traceMask | YAFFS_TRACE_ALWAYS)) TOUT(p); } while (0) ++#ifndef S_IEXEC ++#define S_IEXEC 0000100 ++#endif ++ ++#ifndef XATTR_CREATE ++#define XATTR_CREATE 1 ++#endif ++ ++#ifndef XATTR_REPLACE ++#define XATTR_REPLACE 2 ++#endif ++ ++#ifndef R_OK ++#define R_OK 4 ++#define W_OK 2 ++#define X_OK 1 ++#define F_OK 0 ++#endif ++ ++#else ++#include ++#include ++#include ++#endif ++ ++#endif ++ ++#ifndef Y_DUMP_STACK ++#define Y_DUMP_STACK() do { } while (0) ++#endif + + #ifndef YBUG +-#define YBUG() do {T(YAFFS_TRACE_BUG, (TSTR("==>> yaffs bug: " __FILE__ " %d" TENDSTR), __LINE__)); } while (0) ++#define YBUG() do {\ ++ T(YAFFS_TRACE_BUG,\ ++ (TSTR("==>> yaffs bug: " __FILE__ " %d" TENDSTR),\ ++ __LINE__));\ ++ Y_DUMP_STACK();\ ++} while (0) + #endif + ++ + #endif diff --git a/target/linux/generic/patches-2.6.39/503-yaffs_symlink_bug.patch b/target/linux/generic/patches-2.6.39/503-yaffs_symlink_bug.patch new file mode 100644 index 00000000000..dabf2871bf7 --- /dev/null +++ b/target/linux/generic/patches-2.6.39/503-yaffs_symlink_bug.patch @@ -0,0 +1,17 @@ +--- a/fs/yaffs2/yaffs_guts.c ++++ b/fs/yaffs2/yaffs_guts.c +@@ -1709,11 +1709,11 @@ static int yaffs_change_obj_name(yaffs_o + } + + /* TODO: Do we need this different handling for YAFFS2 and YAFFS1?? */ +- if (obj->my_dev->param.is_yaffs2) ++ // if (obj->my_dev->param.is_yaffs2) + unlinkOp = (new_dir == obj->my_dev->unlinked_dir); +- else ++ /* else + unlinkOp = (new_dir == obj->my_dev->unlinked_dir +- && obj->variant_type == YAFFS_OBJECT_TYPE_FILE); ++ && obj->variant_type == YAFFS_OBJECT_TYPE_FILE); */ + + deleteOp = (new_dir == obj->my_dev->del_dir); + diff --git a/target/linux/generic/patches-2.6.39/504-yaffs_mutex_fix.patch b/target/linux/generic/patches-2.6.39/504-yaffs_mutex_fix.patch new file mode 100644 index 00000000000..b34b12f7858 --- /dev/null +++ b/target/linux/generic/patches-2.6.39/504-yaffs_mutex_fix.patch @@ -0,0 +1,20 @@ +--- a/fs/yaffs2/yaffs_vfs_glue.c ++++ b/fs/yaffs2/yaffs_vfs_glue.c +@@ -3036,7 +3036,7 @@ static struct super_block *yaffs_interna + YINIT_LIST_HEAD(&(yaffs_dev_to_lc(dev)->searchContexts)); + param->remove_obj_fn = yaffs_remove_obj_callback; + +- init_MUTEX(&(yaffs_dev_to_lc(dev)->grossLock)); ++ sema_init(&(yaffs_dev_to_lc(dev)->grossLock), 1); + + yaffs_gross_lock(dev); + +@@ -3494,7 +3494,7 @@ static int __init init_yaffs_fs(void) + + + +- init_MUTEX(&yaffs_context_lock); ++ sema_init((&yaffs_context_lock), 1); + + /* Install the proc_fs entries */ + my_proc_entry = create_proc_entry("yaffs", diff --git a/target/linux/generic/patches-2.6.39/510-jffs2_make_lzma_available.patch b/target/linux/generic/patches-2.6.39/510-jffs2_make_lzma_available.patch new file mode 100644 index 00000000000..a1be3929410 --- /dev/null +++ b/target/linux/generic/patches-2.6.39/510-jffs2_make_lzma_available.patch @@ -0,0 +1,5142 @@ +--- a/fs/jffs2/Kconfig ++++ b/fs/jffs2/Kconfig +@@ -139,6 +139,15 @@ config JFFS2_LZO + This feature was added in July, 2007. Say 'N' if you need + compatibility with older bootloaders or kernels. + ++config JFFS2_LZMA ++ bool "JFFS2 LZMA compression support" if JFFS2_COMPRESSION_OPTIONS ++ select LZMA_COMPRESS ++ select LZMA_DECOMPRESS ++ depends on JFFS2_FS ++ default n ++ help ++ JFFS2 wrapper to the LZMA C SDK ++ + config JFFS2_RTIME + bool "JFFS2 RTIME compression support" if JFFS2_COMPRESSION_OPTIONS + depends on JFFS2_FS +--- a/fs/jffs2/Makefile ++++ b/fs/jffs2/Makefile +@@ -18,4 +18,7 @@ jffs2-$(CONFIG_JFFS2_RUBIN) += compr_rub + jffs2-$(CONFIG_JFFS2_RTIME) += compr_rtime.o + jffs2-$(CONFIG_JFFS2_ZLIB) += compr_zlib.o + jffs2-$(CONFIG_JFFS2_LZO) += compr_lzo.o ++jffs2-$(CONFIG_JFFS2_LZMA) += compr_lzma.o + jffs2-$(CONFIG_JFFS2_SUMMARY) += summary.o ++ ++CFLAGS_compr_lzma.o += -Iinclude/linux -Ilib/lzma +--- a/fs/jffs2/compr.c ++++ b/fs/jffs2/compr.c +@@ -320,6 +320,9 @@ int __init jffs2_compressors_init(void) + #ifdef CONFIG_JFFS2_LZO + jffs2_lzo_init(); + #endif ++#ifdef CONFIG_JFFS2_LZMA ++ jffs2_lzma_init(); ++#endif + /* Setting default compression mode */ + #ifdef CONFIG_JFFS2_CMODE_NONE + jffs2_compression_mode = JFFS2_COMPR_MODE_NONE; +@@ -343,6 +346,9 @@ int __init jffs2_compressors_init(void) + int jffs2_compressors_exit(void) + { + /* Unregistering compressors */ ++#ifdef CONFIG_JFFS2_LZMA ++ jffs2_lzma_exit(); ++#endif + #ifdef CONFIG_JFFS2_LZO + jffs2_lzo_exit(); + #endif +--- a/fs/jffs2/compr.h ++++ b/fs/jffs2/compr.h +@@ -29,9 +29,9 @@ + #define JFFS2_DYNRUBIN_PRIORITY 20 + #define JFFS2_LZARI_PRIORITY 30 + #define JFFS2_RTIME_PRIORITY 50 +-#define JFFS2_ZLIB_PRIORITY 60 +-#define JFFS2_LZO_PRIORITY 80 +- ++#define JFFS2_LZMA_PRIORITY 70 ++#define JFFS2_ZLIB_PRIORITY 80 ++#define JFFS2_LZO_PRIORITY 90 + + #define JFFS2_RUBINMIPS_DISABLED /* RUBINs will be used only */ + #define JFFS2_DYNRUBIN_DISABLED /* for decompression */ +@@ -99,5 +99,9 @@ void jffs2_zlib_exit(void); + int jffs2_lzo_init(void); + void jffs2_lzo_exit(void); + #endif ++#ifdef CONFIG_JFFS2_LZMA ++int jffs2_lzma_init(void); ++void jffs2_lzma_exit(void); ++#endif + + #endif /* __JFFS2_COMPR_H__ */ +--- /dev/null ++++ b/fs/jffs2/compr_lzma.c +@@ -0,0 +1,128 @@ ++/* ++ * JFFS2 -- Journalling Flash File System, Version 2. ++ * ++ * For licensing information, see the file 'LICENCE' in this directory. ++ * ++ * JFFS2 wrapper to the LZMA C SDK ++ * ++ */ ++ ++#include ++#include "compr.h" ++ ++#ifdef __KERNEL__ ++ static DEFINE_MUTEX(deflate_mutex); ++#endif ++ ++CLzmaEncHandle *p; ++Byte propsEncoded[LZMA_PROPS_SIZE]; ++SizeT propsSize = sizeof(propsEncoded); ++ ++STATIC void lzma_free_workspace(void) ++{ ++ LzmaEnc_Destroy(p, &lzma_alloc, &lzma_alloc); ++} ++ ++STATIC int INIT lzma_alloc_workspace(CLzmaEncProps *props) ++{ ++ if ((p = (CLzmaEncHandle *)LzmaEnc_Create(&lzma_alloc)) == NULL) ++ { ++ PRINT_ERROR("Failed to allocate lzma deflate workspace\n"); ++ return -ENOMEM; ++ } ++ ++ if (LzmaEnc_SetProps(p, props) != SZ_OK) ++ { ++ lzma_free_workspace(); ++ return -1; ++ } ++ ++ if (LzmaEnc_WriteProperties(p, propsEncoded, &propsSize) != SZ_OK) ++ { ++ lzma_free_workspace(); ++ return -1; ++ } ++ ++ return 0; ++} ++ ++STATIC int jffs2_lzma_compress(unsigned char *data_in, unsigned char *cpage_out, ++ uint32_t *sourcelen, uint32_t *dstlen) ++{ ++ SizeT compress_size = (SizeT)(*dstlen); ++ int ret; ++ ++ #ifdef __KERNEL__ ++ mutex_lock(&deflate_mutex); ++ #endif ++ ++ ret = LzmaEnc_MemEncode(p, cpage_out, &compress_size, data_in, *sourcelen, ++ 0, NULL, &lzma_alloc, &lzma_alloc); ++ ++ #ifdef __KERNEL__ ++ mutex_unlock(&deflate_mutex); ++ #endif ++ ++ if (ret != SZ_OK) ++ return -1; ++ ++ *dstlen = (uint32_t)compress_size; ++ ++ return 0; ++} ++ ++STATIC int jffs2_lzma_decompress(unsigned char *data_in, unsigned char *cpage_out, ++ uint32_t srclen, uint32_t destlen) ++{ ++ int ret; ++ SizeT dl = (SizeT)destlen; ++ SizeT sl = (SizeT)srclen; ++ ELzmaStatus status; ++ ++ ret = LzmaDecode(cpage_out, &dl, data_in, &sl, propsEncoded, ++ propsSize, LZMA_FINISH_ANY, &status, &lzma_alloc); ++ ++ if (ret != SZ_OK || status == LZMA_STATUS_NOT_FINISHED || dl != (SizeT)destlen) ++ return -1; ++ ++ return 0; ++} ++ ++static struct jffs2_compressor jffs2_lzma_comp = { ++ .priority = JFFS2_LZMA_PRIORITY, ++ .name = "lzma", ++ .compr = JFFS2_COMPR_LZMA, ++ .compress = &jffs2_lzma_compress, ++ .decompress = &jffs2_lzma_decompress, ++ .disabled = 0, ++}; ++ ++int INIT jffs2_lzma_init(void) ++{ ++ int ret; ++ CLzmaEncProps props; ++ LzmaEncProps_Init(&props); ++ ++ props.dictSize = LZMA_BEST_DICT(0x2000); ++ props.level = LZMA_BEST_LEVEL; ++ props.lc = LZMA_BEST_LC; ++ props.lp = LZMA_BEST_LP; ++ props.pb = LZMA_BEST_PB; ++ props.fb = LZMA_BEST_FB; ++ ++ ret = lzma_alloc_workspace(&props); ++ if (ret < 0) ++ return ret; ++ ++ ret = jffs2_register_compressor(&jffs2_lzma_comp); ++ if (ret) ++ lzma_free_workspace(); ++ ++ return ret; ++} ++ ++void jffs2_lzma_exit(void) ++{ ++ jffs2_unregister_compressor(&jffs2_lzma_comp); ++ lzma_free_workspace(); ++} +--- a/fs/jffs2/super.c ++++ b/fs/jffs2/super.c +@@ -255,14 +255,41 @@ static int __init init_jffs2_fs(void) + BUILD_BUG_ON(sizeof(struct jffs2_raw_inode) != 68); + BUILD_BUG_ON(sizeof(struct jffs2_raw_summary) != 32); + +- printk(KERN_INFO "JFFS2 version 2.2." ++ printk(KERN_INFO "JFFS2 version 2.2" + #ifdef CONFIG_JFFS2_FS_WRITEBUFFER + " (NAND)" + #endif + #ifdef CONFIG_JFFS2_SUMMARY +- " (SUMMARY) " ++ " (SUMMARY)" + #endif +- " © 2001-2006 Red Hat, Inc.\n"); ++#ifdef CONFIG_JFFS2_ZLIB ++ " (ZLIB)" ++#endif ++#ifdef CONFIG_JFFS2_LZO ++ " (LZO)" ++#endif ++#ifdef CONFIG_JFFS2_LZMA ++ " (LZMA)" ++#endif ++#ifdef CONFIG_JFFS2_RTIME ++ " (RTIME)" ++#endif ++#ifdef CONFIG_JFFS2_RUBIN ++ " (RUBIN)" ++#endif ++#ifdef CONFIG_JFFS2_CMODE_NONE ++ " (CMODE_NONE)" ++#endif ++#ifdef CONFIG_JFFS2_CMODE_PRIORITY ++ " (CMODE_PRIORITY)" ++#endif ++#ifdef CONFIG_JFFS2_CMODE_SIZE ++ " (CMODE_SIZE)" ++#endif ++#ifdef CONFIG_JFFS2_CMODE_FAVOURLZO ++ " (CMODE_FAVOURLZO)" ++#endif ++ " (c) 2001-2006 Red Hat, Inc.\n"); + + jffs2_inode_cachep = kmem_cache_create("jffs2_i", + sizeof(struct jffs2_inode_info), +--- a/include/linux/jffs2.h ++++ b/include/linux/jffs2.h +@@ -46,6 +46,7 @@ + #define JFFS2_COMPR_DYNRUBIN 0x05 + #define JFFS2_COMPR_ZLIB 0x06 + #define JFFS2_COMPR_LZO 0x07 ++#define JFFS2_COMPR_LZMA 0x08 + /* Compatibility flags. */ + #define JFFS2_COMPAT_MASK 0xc000 /* What do to if an unknown nodetype is found */ + #define JFFS2_NODE_ACCURATE 0x2000 +--- /dev/null ++++ b/include/linux/lzma.h +@@ -0,0 +1,62 @@ ++#ifndef __LZMA_H__ ++#define __LZMA_H__ ++ ++#ifdef __KERNEL__ ++ #include ++ #include ++ #include ++ #include ++ #include ++ #define LZMA_MALLOC vmalloc ++ #define LZMA_FREE vfree ++ #define PRINT_ERROR(msg) printk(KERN_WARNING #msg) ++ #define INIT __init ++ #define STATIC static ++#else ++ #include ++ #include ++ #include ++ #include ++ #include ++ #include ++ #include ++ #include ++ #ifndef PAGE_SIZE ++ extern int page_size; ++ #define PAGE_SIZE page_size ++ #endif ++ #define LZMA_MALLOC malloc ++ #define LZMA_FREE free ++ #define PRINT_ERROR(msg) fprintf(stderr, msg) ++ #define INIT ++ #define STATIC ++#endif ++ ++#include "lzma/LzmaDec.h" ++#include "lzma/LzmaEnc.h" ++ ++#define LZMA_BEST_LEVEL (9) ++#define LZMA_BEST_LC (0) ++#define LZMA_BEST_LP (0) ++#define LZMA_BEST_PB (0) ++#define LZMA_BEST_FB (273) ++ ++#define LZMA_BEST_DICT(n) (((int)((n) / 2)) * 2) ++ ++static void *p_lzma_malloc(void *p, size_t size) ++{ ++ if (size == 0) ++ return NULL; ++ ++ return LZMA_MALLOC(size); ++} ++ ++static void p_lzma_free(void *p, void *address) ++{ ++ if (address != NULL) ++ LZMA_FREE(address); ++} ++ ++static ISzAlloc lzma_alloc = {p_lzma_malloc, p_lzma_free}; ++ ++#endif +--- /dev/null ++++ b/include/linux/lzma/LzFind.h +@@ -0,0 +1,115 @@ ++/* LzFind.h -- Match finder for LZ algorithms ++2009-04-22 : Igor Pavlov : Public domain */ ++ ++#ifndef __LZ_FIND_H ++#define __LZ_FIND_H ++ ++#include "Types.h" ++ ++#ifdef __cplusplus ++extern "C" { ++#endif ++ ++typedef UInt32 CLzRef; ++ ++typedef struct _CMatchFinder ++{ ++ Byte *buffer; ++ UInt32 pos; ++ UInt32 posLimit; ++ UInt32 streamPos; ++ UInt32 lenLimit; ++ ++ UInt32 cyclicBufferPos; ++ UInt32 cyclicBufferSize; /* it must be = (historySize + 1) */ ++ ++ UInt32 matchMaxLen; ++ CLzRef *hash; ++ CLzRef *son; ++ UInt32 hashMask; ++ UInt32 cutValue; ++ ++ Byte *bufferBase; ++ ISeqInStream *stream; ++ int streamEndWasReached; ++ ++ UInt32 blockSize; ++ UInt32 keepSizeBefore; ++ UInt32 keepSizeAfter; ++ ++ UInt32 numHashBytes; ++ int directInput; ++ size_t directInputRem; ++ int btMode; ++ int bigHash; ++ UInt32 historySize; ++ UInt32 fixedHashSize; ++ UInt32 hashSizeSum; ++ UInt32 numSons; ++ SRes result; ++ UInt32 crc[256]; ++} CMatchFinder; ++ ++#define Inline_MatchFinder_GetPointerToCurrentPos(p) ((p)->buffer) ++#define Inline_MatchFinder_GetIndexByte(p, index) ((p)->buffer[(Int32)(index)]) ++ ++#define Inline_MatchFinder_GetNumAvailableBytes(p) ((p)->streamPos - (p)->pos) ++ ++int MatchFinder_NeedMove(CMatchFinder *p); ++Byte *MatchFinder_GetPointerToCurrentPos(CMatchFinder *p); ++void MatchFinder_MoveBlock(CMatchFinder *p); ++void MatchFinder_ReadIfRequired(CMatchFinder *p); ++ ++void MatchFinder_Construct(CMatchFinder *p); ++ ++/* Conditions: ++ historySize <= 3 GB ++ keepAddBufferBefore + matchMaxLen + keepAddBufferAfter < 511MB ++*/ ++int MatchFinder_Create(CMatchFinder *p, UInt32 historySize, ++ UInt32 keepAddBufferBefore, UInt32 matchMaxLen, UInt32 keepAddBufferAfter, ++ ISzAlloc *alloc); ++void MatchFinder_Free(CMatchFinder *p, ISzAlloc *alloc); ++void MatchFinder_Normalize3(UInt32 subValue, CLzRef *items, UInt32 numItems); ++void MatchFinder_ReduceOffsets(CMatchFinder *p, UInt32 subValue); ++ ++UInt32 * GetMatchesSpec1(UInt32 lenLimit, UInt32 curMatch, UInt32 pos, const Byte *buffer, CLzRef *son, ++ UInt32 _cyclicBufferPos, UInt32 _cyclicBufferSize, UInt32 _cutValue, ++ UInt32 *distances, UInt32 maxLen); ++ ++/* ++Conditions: ++ Mf_GetNumAvailableBytes_Func must be called before each Mf_GetMatchLen_Func. ++ Mf_GetPointerToCurrentPos_Func's result must be used only before any other function ++*/ ++ ++typedef void (*Mf_Init_Func)(void *object); ++typedef Byte (*Mf_GetIndexByte_Func)(void *object, Int32 index); ++typedef UInt32 (*Mf_GetNumAvailableBytes_Func)(void *object); ++typedef const Byte * (*Mf_GetPointerToCurrentPos_Func)(void *object); ++typedef UInt32 (*Mf_GetMatches_Func)(void *object, UInt32 *distances); ++typedef void (*Mf_Skip_Func)(void *object, UInt32); ++ ++typedef struct _IMatchFinder ++{ ++ Mf_Init_Func Init; ++ Mf_GetIndexByte_Func GetIndexByte; ++ Mf_GetNumAvailableBytes_Func GetNumAvailableBytes; ++ Mf_GetPointerToCurrentPos_Func GetPointerToCurrentPos; ++ Mf_GetMatches_Func GetMatches; ++ Mf_Skip_Func Skip; ++} IMatchFinder; ++ ++void MatchFinder_CreateVTable(CMatchFinder *p, IMatchFinder *vTable); ++ ++void MatchFinder_Init(CMatchFinder *p); ++UInt32 Bt3Zip_MatchFinder_GetMatches(CMatchFinder *p, UInt32 *distances); ++UInt32 Hc3Zip_MatchFinder_GetMatches(CMatchFinder *p, UInt32 *distances); ++void Bt3Zip_MatchFinder_Skip(CMatchFinder *p, UInt32 num); ++void Hc3Zip_MatchFinder_Skip(CMatchFinder *p, UInt32 num); ++ ++#ifdef __cplusplus ++} ++#endif ++ ++#endif +--- /dev/null ++++ b/include/linux/lzma/LzHash.h +@@ -0,0 +1,54 @@ ++/* LzHash.h -- HASH functions for LZ algorithms ++2009-02-07 : Igor Pavlov : Public domain */ ++ ++#ifndef __LZ_HASH_H ++#define __LZ_HASH_H ++ ++#define kHash2Size (1 << 10) ++#define kHash3Size (1 << 16) ++#define kHash4Size (1 << 20) ++ ++#define kFix3HashSize (kHash2Size) ++#define kFix4HashSize (kHash2Size + kHash3Size) ++#define kFix5HashSize (kHash2Size + kHash3Size + kHash4Size) ++ ++#define HASH2_CALC hashValue = cur[0] | ((UInt32)cur[1] << 8); ++ ++#define HASH3_CALC { \ ++ UInt32 temp = p->crc[cur[0]] ^ cur[1]; \ ++ hash2Value = temp & (kHash2Size - 1); \ ++ hashValue = (temp ^ ((UInt32)cur[2] << 8)) & p->hashMask; } ++ ++#define HASH4_CALC { \ ++ UInt32 temp = p->crc[cur[0]] ^ cur[1]; \ ++ hash2Value = temp & (kHash2Size - 1); \ ++ hash3Value = (temp ^ ((UInt32)cur[2] << 8)) & (kHash3Size - 1); \ ++ hashValue = (temp ^ ((UInt32)cur[2] << 8) ^ (p->crc[cur[3]] << 5)) & p->hashMask; } ++ ++#define HASH5_CALC { \ ++ UInt32 temp = p->crc[cur[0]] ^ cur[1]; \ ++ hash2Value = temp & (kHash2Size - 1); \ ++ hash3Value = (temp ^ ((UInt32)cur[2] << 8)) & (kHash3Size - 1); \ ++ hash4Value = (temp ^ ((UInt32)cur[2] << 8) ^ (p->crc[cur[3]] << 5)); \ ++ hashValue = (hash4Value ^ (p->crc[cur[4]] << 3)) & p->hashMask; \ ++ hash4Value &= (kHash4Size - 1); } ++ ++/* #define HASH_ZIP_CALC hashValue = ((cur[0] | ((UInt32)cur[1] << 8)) ^ p->crc[cur[2]]) & 0xFFFF; */ ++#define HASH_ZIP_CALC hashValue = ((cur[2] | ((UInt32)cur[0] << 8)) ^ p->crc[cur[1]]) & 0xFFFF; ++ ++ ++#define MT_HASH2_CALC \ ++ hash2Value = (p->crc[cur[0]] ^ cur[1]) & (kHash2Size - 1); ++ ++#define MT_HASH3_CALC { \ ++ UInt32 temp = p->crc[cur[0]] ^ cur[1]; \ ++ hash2Value = temp & (kHash2Size - 1); \ ++ hash3Value = (temp ^ ((UInt32)cur[2] << 8)) & (kHash3Size - 1); } ++ ++#define MT_HASH4_CALC { \ ++ UInt32 temp = p->crc[cur[0]] ^ cur[1]; \ ++ hash2Value = temp & (kHash2Size - 1); \ ++ hash3Value = (temp ^ ((UInt32)cur[2] << 8)) & (kHash3Size - 1); \ ++ hash4Value = (temp ^ ((UInt32)cur[2] << 8) ^ (p->crc[cur[3]] << 5)) & (kHash4Size - 1); } ++ ++#endif +--- /dev/null ++++ b/include/linux/lzma/LzmaDec.h +@@ -0,0 +1,231 @@ ++/* LzmaDec.h -- LZMA Decoder ++2009-02-07 : Igor Pavlov : Public domain */ ++ ++#ifndef __LZMA_DEC_H ++#define __LZMA_DEC_H ++ ++#include "Types.h" ++ ++#ifdef __cplusplus ++extern "C" { ++#endif ++ ++/* #define _LZMA_PROB32 */ ++/* _LZMA_PROB32 can increase the speed on some CPUs, ++ but memory usage for CLzmaDec::probs will be doubled in that case */ ++ ++#ifdef _LZMA_PROB32 ++#define CLzmaProb UInt32 ++#else ++#define CLzmaProb UInt16 ++#endif ++ ++ ++/* ---------- LZMA Properties ---------- */ ++ ++#define LZMA_PROPS_SIZE 5 ++ ++typedef struct _CLzmaProps ++{ ++ unsigned lc, lp, pb; ++ UInt32 dicSize; ++} CLzmaProps; ++ ++/* LzmaProps_Decode - decodes properties ++Returns: ++ SZ_OK ++ SZ_ERROR_UNSUPPORTED - Unsupported properties ++*/ ++ ++SRes LzmaProps_Decode(CLzmaProps *p, const Byte *data, unsigned size); ++ ++ ++/* ---------- LZMA Decoder state ---------- */ ++ ++/* LZMA_REQUIRED_INPUT_MAX = number of required input bytes for worst case. ++ Num bits = log2((2^11 / 31) ^ 22) + 26 < 134 + 26 = 160; */ ++ ++#define LZMA_REQUIRED_INPUT_MAX 20 ++ ++typedef struct ++{ ++ CLzmaProps prop; ++ CLzmaProb *probs; ++ Byte *dic; ++ const Byte *buf; ++ UInt32 range, code; ++ SizeT dicPos; ++ SizeT dicBufSize; ++ UInt32 processedPos; ++ UInt32 checkDicSize; ++ unsigned state; ++ UInt32 reps[4]; ++ unsigned remainLen; ++ int needFlush; ++ int needInitState; ++ UInt32 numProbs; ++ unsigned tempBufSize; ++ Byte tempBuf[LZMA_REQUIRED_INPUT_MAX]; ++} CLzmaDec; ++ ++#define LzmaDec_Construct(p) { (p)->dic = 0; (p)->probs = 0; } ++ ++void LzmaDec_Init(CLzmaDec *p); ++ ++/* There are two types of LZMA streams: ++ 0) Stream with end mark. That end mark adds about 6 bytes to compressed size. ++ 1) Stream without end mark. You must know exact uncompressed size to decompress such stream. */ ++ ++typedef enum ++{ ++ LZMA_FINISH_ANY, /* finish at any point */ ++ LZMA_FINISH_END /* block must be finished at the end */ ++} ELzmaFinishMode; ++ ++/* ELzmaFinishMode has meaning only if the decoding reaches output limit !!! ++ ++ You must use LZMA_FINISH_END, when you know that current output buffer ++ covers last bytes of block. In other cases you must use LZMA_FINISH_ANY. ++ ++ If LZMA decoder sees end marker before reaching output limit, it returns SZ_OK, ++ and output value of destLen will be less than output buffer size limit. ++ You can check status result also. ++ ++ You can use multiple checks to test data integrity after full decompression: ++ 1) Check Result and "status" variable. ++ 2) Check that output(destLen) = uncompressedSize, if you know real uncompressedSize. ++ 3) Check that output(srcLen) = compressedSize, if you know real compressedSize. ++ You must use correct finish mode in that case. */ ++ ++typedef enum ++{ ++ LZMA_STATUS_NOT_SPECIFIED, /* use main error code instead */ ++ LZMA_STATUS_FINISHED_WITH_MARK, /* stream was finished with end mark. */ ++ LZMA_STATUS_NOT_FINISHED, /* stream was not finished */ ++ LZMA_STATUS_NEEDS_MORE_INPUT, /* you must provide more input bytes */ ++ LZMA_STATUS_MAYBE_FINISHED_WITHOUT_MARK /* there is probability that stream was finished without end mark */ ++} ELzmaStatus; ++ ++/* ELzmaStatus is used only as output value for function call */ ++ ++ ++/* ---------- Interfaces ---------- */ ++ ++/* There are 3 levels of interfaces: ++ 1) Dictionary Interface ++ 2) Buffer Interface ++ 3) One Call Interface ++ You can select any of these interfaces, but don't mix functions from different ++ groups for same object. */ ++ ++ ++/* There are two variants to allocate state for Dictionary Interface: ++ 1) LzmaDec_Allocate / LzmaDec_Free ++ 2) LzmaDec_AllocateProbs / LzmaDec_FreeProbs ++ You can use variant 2, if you set dictionary buffer manually. ++ For Buffer Interface you must always use variant 1. ++ ++LzmaDec_Allocate* can return: ++ SZ_OK ++ SZ_ERROR_MEM - Memory allocation error ++ SZ_ERROR_UNSUPPORTED - Unsupported properties ++*/ ++ ++SRes LzmaDec_AllocateProbs(CLzmaDec *p, const Byte *props, unsigned propsSize, ISzAlloc *alloc); ++void LzmaDec_FreeProbs(CLzmaDec *p, ISzAlloc *alloc); ++ ++SRes LzmaDec_Allocate(CLzmaDec *state, const Byte *prop, unsigned propsSize, ISzAlloc *alloc); ++void LzmaDec_Free(CLzmaDec *state, ISzAlloc *alloc); ++ ++/* ---------- Dictionary Interface ---------- */ ++ ++/* You can use it, if you want to eliminate the overhead for data copying from ++ dictionary to some other external buffer. ++ You must work with CLzmaDec variables directly in this interface. ++ ++ STEPS: ++ LzmaDec_Constr() ++ LzmaDec_Allocate() ++ for (each new stream) ++ { ++ LzmaDec_Init() ++ while (it needs more decompression) ++ { ++ LzmaDec_DecodeToDic() ++ use data from CLzmaDec::dic and update CLzmaDec::dicPos ++ } ++ } ++ LzmaDec_Free() ++*/ ++ ++/* LzmaDec_DecodeToDic ++ ++ The decoding to internal dictionary buffer (CLzmaDec::dic). ++ You must manually update CLzmaDec::dicPos, if it reaches CLzmaDec::dicBufSize !!! ++ ++finishMode: ++ It has meaning only if the decoding reaches output limit (dicLimit). ++ LZMA_FINISH_ANY - Decode just dicLimit bytes. ++ LZMA_FINISH_END - Stream must be finished after dicLimit. ++ ++Returns: ++ SZ_OK ++ status: ++ LZMA_STATUS_FINISHED_WITH_MARK ++ LZMA_STATUS_NOT_FINISHED ++ LZMA_STATUS_NEEDS_MORE_INPUT ++ LZMA_STATUS_MAYBE_FINISHED_WITHOUT_MARK ++ SZ_ERROR_DATA - Data error ++*/ ++ ++SRes LzmaDec_DecodeToDic(CLzmaDec *p, SizeT dicLimit, ++ const Byte *src, SizeT *srcLen, ELzmaFinishMode finishMode, ELzmaStatus *status); ++ ++ ++/* ---------- Buffer Interface ---------- */ ++ ++/* It's zlib-like interface. ++ See LzmaDec_DecodeToDic description for information about STEPS and return results, ++ but you must use LzmaDec_DecodeToBuf instead of LzmaDec_DecodeToDic and you don't need ++ to work with CLzmaDec variables manually. ++ ++finishMode: ++ It has meaning only if the decoding reaches output limit (*destLen). ++ LZMA_FINISH_ANY - Decode just destLen bytes. ++ LZMA_FINISH_END - Stream must be finished after (*destLen). ++*/ ++ ++SRes LzmaDec_DecodeToBuf(CLzmaDec *p, Byte *dest, SizeT *destLen, ++ const Byte *src, SizeT *srcLen, ELzmaFinishMode finishMode, ELzmaStatus *status); ++ ++ ++/* ---------- One Call Interface ---------- */ ++ ++/* LzmaDecode ++ ++finishMode: ++ It has meaning only if the decoding reaches output limit (*destLen). ++ LZMA_FINISH_ANY - Decode just destLen bytes. ++ LZMA_FINISH_END - Stream must be finished after (*destLen). ++ ++Returns: ++ SZ_OK ++ status: ++ LZMA_STATUS_FINISHED_WITH_MARK ++ LZMA_STATUS_NOT_FINISHED ++ LZMA_STATUS_MAYBE_FINISHED_WITHOUT_MARK ++ SZ_ERROR_DATA - Data error ++ SZ_ERROR_MEM - Memory allocation error ++ SZ_ERROR_UNSUPPORTED - Unsupported properties ++ SZ_ERROR_INPUT_EOF - It needs more bytes in input buffer (src). ++*/ ++ ++SRes LzmaDecode(Byte *dest, SizeT *destLen, const Byte *src, SizeT *srcLen, ++ const Byte *propData, unsigned propSize, ELzmaFinishMode finishMode, ++ ELzmaStatus *status, ISzAlloc *alloc); ++ ++#ifdef __cplusplus ++} ++#endif ++ ++#endif +--- /dev/null ++++ b/include/linux/lzma/LzmaEnc.h +@@ -0,0 +1,80 @@ ++/* LzmaEnc.h -- LZMA Encoder ++2009-02-07 : Igor Pavlov : Public domain */ ++ ++#ifndef __LZMA_ENC_H ++#define __LZMA_ENC_H ++ ++#include "Types.h" ++ ++#ifdef __cplusplus ++extern "C" { ++#endif ++ ++#define LZMA_PROPS_SIZE 5 ++ ++typedef struct _CLzmaEncProps ++{ ++ int level; /* 0 <= level <= 9 */ ++ UInt32 dictSize; /* (1 << 12) <= dictSize <= (1 << 27) for 32-bit version ++ (1 << 12) <= dictSize <= (1 << 30) for 64-bit version ++ default = (1 << 24) */ ++ int lc; /* 0 <= lc <= 8, default = 3 */ ++ int lp; /* 0 <= lp <= 4, default = 0 */ ++ int pb; /* 0 <= pb <= 4, default = 2 */ ++ int algo; /* 0 - fast, 1 - normal, default = 1 */ ++ int fb; /* 5 <= fb <= 273, default = 32 */ ++ int btMode; /* 0 - hashChain Mode, 1 - binTree mode - normal, default = 1 */ ++ int numHashBytes; /* 2, 3 or 4, default = 4 */ ++ UInt32 mc; /* 1 <= mc <= (1 << 30), default = 32 */ ++ unsigned writeEndMark; /* 0 - do not write EOPM, 1 - write EOPM, default = 0 */ ++ int numThreads; /* 1 or 2, default = 2 */ ++} CLzmaEncProps; ++ ++void LzmaEncProps_Init(CLzmaEncProps *p); ++void LzmaEncProps_Normalize(CLzmaEncProps *p); ++UInt32 LzmaEncProps_GetDictSize(const CLzmaEncProps *props2); ++ ++ ++/* ---------- CLzmaEncHandle Interface ---------- */ ++ ++/* LzmaEnc_* functions can return the following exit codes: ++Returns: ++ SZ_OK - OK ++ SZ_ERROR_MEM - Memory allocation error ++ SZ_ERROR_PARAM - Incorrect paramater in props ++ SZ_ERROR_WRITE - Write callback error. ++ SZ_ERROR_PROGRESS - some break from progress callback ++ SZ_ERROR_THREAD - errors in multithreading functions (only for Mt version) ++*/ ++ ++typedef void * CLzmaEncHandle; ++ ++CLzmaEncHandle LzmaEnc_Create(ISzAlloc *alloc); ++void LzmaEnc_Destroy(CLzmaEncHandle p, ISzAlloc *alloc, ISzAlloc *allocBig); ++SRes LzmaEnc_SetProps(CLzmaEncHandle p, const CLzmaEncProps *props); ++SRes LzmaEnc_WriteProperties(CLzmaEncHandle p, Byte *properties, SizeT *size); ++SRes LzmaEnc_Encode(CLzmaEncHandle p, ISeqOutStream *outStream, ISeqInStream *inStream, ++ ICompressProgress *progress, ISzAlloc *alloc, ISzAlloc *allocBig); ++SRes LzmaEnc_MemEncode(CLzmaEncHandle p, Byte *dest, SizeT *destLen, const Byte *src, SizeT srcLen, ++ int writeEndMark, ICompressProgress *progress, ISzAlloc *alloc, ISzAlloc *allocBig); ++ ++/* ---------- One Call Interface ---------- */ ++ ++/* LzmaEncode ++Return code: ++ SZ_OK - OK ++ SZ_ERROR_MEM - Memory allocation error ++ SZ_ERROR_PARAM - Incorrect paramater ++ SZ_ERROR_OUTPUT_EOF - output buffer overflow ++ SZ_ERROR_THREAD - errors in multithreading functions (only for Mt version) ++*/ ++ ++SRes LzmaEncode(Byte *dest, SizeT *destLen, const Byte *src, SizeT srcLen, ++ const CLzmaEncProps *props, Byte *propsEncoded, SizeT *propsSize, int writeEndMark, ++ ICompressProgress *progress, ISzAlloc *alloc, ISzAlloc *allocBig); ++ ++#ifdef __cplusplus ++} ++#endif ++ ++#endif +--- /dev/null ++++ b/include/linux/lzma/Types.h +@@ -0,0 +1,226 @@ ++/* Types.h -- Basic types ++2009-11-23 : Igor Pavlov : Public domain */ ++ ++#ifndef __7Z_TYPES_H ++#define __7Z_TYPES_H ++ ++#include ++ ++#ifdef _WIN32 ++#include ++#endif ++ ++#ifndef EXTERN_C_BEGIN ++#ifdef __cplusplus ++#define EXTERN_C_BEGIN extern "C" { ++#define EXTERN_C_END } ++#else ++#define EXTERN_C_BEGIN ++#define EXTERN_C_END ++#endif ++#endif ++ ++EXTERN_C_BEGIN ++ ++#define SZ_OK 0 ++ ++#define SZ_ERROR_DATA 1 ++#define SZ_ERROR_MEM 2 ++#define SZ_ERROR_CRC 3 ++#define SZ_ERROR_UNSUPPORTED 4 ++#define SZ_ERROR_PARAM 5 ++#define SZ_ERROR_INPUT_EOF 6 ++#define SZ_ERROR_OUTPUT_EOF 7 ++#define SZ_ERROR_READ 8 ++#define SZ_ERROR_WRITE 9 ++#define SZ_ERROR_PROGRESS 10 ++#define SZ_ERROR_FAIL 11 ++#define SZ_ERROR_THREAD 12 ++ ++#define SZ_ERROR_ARCHIVE 16 ++#define SZ_ERROR_NO_ARCHIVE 17 ++ ++typedef int SRes; ++ ++#ifdef _WIN32 ++typedef DWORD WRes; ++#else ++typedef int WRes; ++#endif ++ ++#ifndef RINOK ++#define RINOK(x) { int __result__ = (x); if (__result__ != 0) return __result__; } ++#endif ++ ++typedef unsigned char Byte; ++typedef short Int16; ++typedef unsigned short UInt16; ++ ++#ifdef _LZMA_UINT32_IS_ULONG ++typedef long Int32; ++typedef unsigned long UInt32; ++#else ++typedef int Int32; ++typedef unsigned int UInt32; ++#endif ++ ++#ifdef _SZ_NO_INT_64 ++ ++/* define _SZ_NO_INT_64, if your compiler doesn't support 64-bit integers. ++ NOTES: Some code will work incorrectly in that case! */ ++ ++typedef long Int64; ++typedef unsigned long UInt64; ++ ++#else ++ ++#if defined(_MSC_VER) || defined(__BORLANDC__) ++typedef __int64 Int64; ++typedef unsigned __int64 UInt64; ++#else ++typedef long long int Int64; ++typedef unsigned long long int UInt64; ++#endif ++ ++#endif ++ ++#ifdef _LZMA_NO_SYSTEM_SIZE_T ++typedef UInt32 SizeT; ++#else ++typedef size_t SizeT; ++#endif ++ ++typedef int Bool; ++#define True 1 ++#define False 0 ++ ++ ++#ifdef _WIN32 ++#define MY_STD_CALL __stdcall ++#else ++#define MY_STD_CALL ++#endif ++ ++#ifdef _MSC_VER ++ ++#if _MSC_VER >= 1300 ++#define MY_NO_INLINE __declspec(noinline) ++#else ++#define MY_NO_INLINE ++#endif ++ ++#define MY_CDECL __cdecl ++#define MY_FAST_CALL __fastcall ++ ++#else ++ ++#define MY_CDECL ++#define MY_FAST_CALL ++ ++#endif ++ ++ ++/* The following interfaces use first parameter as pointer to structure */ ++ ++typedef struct ++{ ++ SRes (*Read)(void *p, void *buf, size_t *size); ++ /* if (input(*size) != 0 && output(*size) == 0) means end_of_stream. ++ (output(*size) < input(*size)) is allowed */ ++} ISeqInStream; ++ ++/* it can return SZ_ERROR_INPUT_EOF */ ++SRes SeqInStream_Read(ISeqInStream *stream, void *buf, size_t size); ++SRes SeqInStream_Read2(ISeqInStream *stream, void *buf, size_t size, SRes errorType); ++SRes SeqInStream_ReadByte(ISeqInStream *stream, Byte *buf); ++ ++typedef struct ++{ ++ size_t (*Write)(void *p, const void *buf, size_t size); ++ /* Returns: result - the number of actually written bytes. ++ (result < size) means error */ ++} ISeqOutStream; ++ ++typedef enum ++{ ++ SZ_SEEK_SET = 0, ++ SZ_SEEK_CUR = 1, ++ SZ_SEEK_END = 2 ++} ESzSeek; ++ ++typedef struct ++{ ++ SRes (*Read)(void *p, void *buf, size_t *size); /* same as ISeqInStream::Read */ ++ SRes (*Seek)(void *p, Int64 *pos, ESzSeek origin); ++} ISeekInStream; ++ ++typedef struct ++{ ++ SRes (*Look)(void *p, void **buf, size_t *size); ++ /* if (input(*size) != 0 && output(*size) == 0) means end_of_stream. ++ (output(*size) > input(*size)) is not allowed ++ (output(*size) < input(*size)) is allowed */ ++ SRes (*Skip)(void *p, size_t offset); ++ /* offset must be <= output(*size) of Look */ ++ ++ SRes (*Read)(void *p, void *buf, size_t *size); ++ /* reads directly (without buffer). It's same as ISeqInStream::Read */ ++ SRes (*Seek)(void *p, Int64 *pos, ESzSeek origin); ++} ILookInStream; ++ ++SRes LookInStream_LookRead(ILookInStream *stream, void *buf, size_t *size); ++SRes LookInStream_SeekTo(ILookInStream *stream, UInt64 offset); ++ ++/* reads via ILookInStream::Read */ ++SRes LookInStream_Read2(ILookInStream *stream, void *buf, size_t size, SRes errorType); ++SRes LookInStream_Read(ILookInStream *stream, void *buf, size_t size); ++ ++#define LookToRead_BUF_SIZE (1 << 14) ++ ++typedef struct ++{ ++ ILookInStream s; ++ ISeekInStream *realStream; ++ size_t pos; ++ size_t size; ++ Byte buf[LookToRead_BUF_SIZE]; ++} CLookToRead; ++ ++void LookToRead_CreateVTable(CLookToRead *p, int lookahead); ++void LookToRead_Init(CLookToRead *p); ++ ++typedef struct ++{ ++ ISeqInStream s; ++ ILookInStream *realStream; ++} CSecToLook; ++ ++void SecToLook_CreateVTable(CSecToLook *p); ++ ++typedef struct ++{ ++ ISeqInStream s; ++ ILookInStream *realStream; ++} CSecToRead; ++ ++void SecToRead_CreateVTable(CSecToRead *p); ++ ++typedef struct ++{ ++ SRes (*Progress)(void *p, UInt64 inSize, UInt64 outSize); ++ /* Returns: result. (result != SZ_OK) means break. ++ Value (UInt64)(Int64)-1 for size means unknown value. */ ++} ICompressProgress; ++ ++typedef struct ++{ ++ void *(*Alloc)(void *p, size_t size); ++ void (*Free)(void *p, void *address); /* address can be 0 */ ++} ISzAlloc; ++ ++#define IAlloc_Alloc(p, size) (p)->Alloc((p), size) ++#define IAlloc_Free(p, a) (p)->Free((p), a) ++ ++EXTERN_C_END ++ ++#endif +--- a/lib/Kconfig ++++ b/lib/Kconfig +@@ -111,6 +111,12 @@ config LZO_DECOMPRESS + + source "lib/xz/Kconfig" + ++config LZMA_COMPRESS ++ tristate ++ ++config LZMA_DECOMPRESS ++ tristate ++ + # + # These all provide a common interface (hence the apparent duplication with + # ZLIB_INFLATE; DECOMPRESS_GZIP is just a wrapper.) +--- a/lib/Makefile ++++ b/lib/Makefile +@@ -2,6 +2,16 @@ + # Makefile for some libs needed in the kernel. + # + ++ifdef CONFIG_JFFS2_ZLIB ++ CONFIG_ZLIB_INFLATE:=y ++ CONFIG_ZLIB_DEFLATE:=y ++endif ++ ++ifdef CONFIG_JFFS2_LZMA ++ CONFIG_LZMA_DECOMPRESS:=y ++ CONFIG_LZMA_COMPRESS:=y ++endif ++ + ifdef CONFIG_FUNCTION_TRACER + ORIG_CFLAGS := $(KBUILD_CFLAGS) + KBUILD_CFLAGS = $(subst -pg,,$(ORIG_CFLAGS)) +@@ -74,6 +84,8 @@ obj-$(CONFIG_LZO_COMPRESS) += lzo/ + obj-$(CONFIG_LZO_DECOMPRESS) += lzo/ + obj-$(CONFIG_XZ_DEC) += xz/ + obj-$(CONFIG_RAID6_PQ) += raid6/ ++obj-$(CONFIG_LZMA_COMPRESS) += lzma/ ++obj-$(CONFIG_LZMA_DECOMPRESS) += lzma/ + + lib-$(CONFIG_DECOMPRESS_GZIP) += decompress_inflate.o + lib-$(CONFIG_DECOMPRESS_BZIP2) += decompress_bunzip2.o +--- /dev/null ++++ b/lib/lzma/LzFind.c +@@ -0,0 +1,761 @@ ++/* LzFind.c -- Match finder for LZ algorithms ++2009-04-22 : Igor Pavlov : Public domain */ ++ ++#include ++ ++#include "LzFind.h" ++#include "LzHash.h" ++ ++#define kEmptyHashValue 0 ++#define kMaxValForNormalize ((UInt32)0xFFFFFFFF) ++#define kNormalizeStepMin (1 << 10) /* it must be power of 2 */ ++#define kNormalizeMask (~(kNormalizeStepMin - 1)) ++#define kMaxHistorySize ((UInt32)3 << 30) ++ ++#define kStartMaxLen 3 ++ ++static void LzInWindow_Free(CMatchFinder *p, ISzAlloc *alloc) ++{ ++ if (!p->directInput) ++ { ++ alloc->Free(alloc, p->bufferBase); ++ p->bufferBase = 0; ++ } ++} ++ ++/* keepSizeBefore + keepSizeAfter + keepSizeReserv must be < 4G) */ ++ ++static int LzInWindow_Create(CMatchFinder *p, UInt32 keepSizeReserv, ISzAlloc *alloc) ++{ ++ UInt32 blockSize = p->keepSizeBefore + p->keepSizeAfter + keepSizeReserv; ++ if (p->directInput) ++ { ++ p->blockSize = blockSize; ++ return 1; ++ } ++ if (p->bufferBase == 0 || p->blockSize != blockSize) ++ { ++ LzInWindow_Free(p, alloc); ++ p->blockSize = blockSize; ++ p->bufferBase = (Byte *)alloc->Alloc(alloc, (size_t)blockSize); ++ } ++ return (p->bufferBase != 0); ++} ++ ++Byte *MatchFinder_GetPointerToCurrentPos(CMatchFinder *p) { return p->buffer; } ++Byte MatchFinder_GetIndexByte(CMatchFinder *p, Int32 index) { return p->buffer[index]; } ++ ++UInt32 MatchFinder_GetNumAvailableBytes(CMatchFinder *p) { return p->streamPos - p->pos; } ++ ++void MatchFinder_ReduceOffsets(CMatchFinder *p, UInt32 subValue) ++{ ++ p->posLimit -= subValue; ++ p->pos -= subValue; ++ p->streamPos -= subValue; ++} ++ ++static void MatchFinder_ReadBlock(CMatchFinder *p) ++{ ++ if (p->streamEndWasReached || p->result != SZ_OK) ++ return; ++ if (p->directInput) ++ { ++ UInt32 curSize = 0xFFFFFFFF - p->streamPos; ++ if (curSize > p->directInputRem) ++ curSize = (UInt32)p->directInputRem; ++ p->directInputRem -= curSize; ++ p->streamPos += curSize; ++ if (p->directInputRem == 0) ++ p->streamEndWasReached = 1; ++ return; ++ } ++ for (;;) ++ { ++ Byte *dest = p->buffer + (p->streamPos - p->pos); ++ size_t size = (p->bufferBase + p->blockSize - dest); ++ if (size == 0) ++ return; ++ p->result = p->stream->Read(p->stream, dest, &size); ++ if (p->result != SZ_OK) ++ return; ++ if (size == 0) ++ { ++ p->streamEndWasReached = 1; ++ return; ++ } ++ p->streamPos += (UInt32)size; ++ if (p->streamPos - p->pos > p->keepSizeAfter) ++ return; ++ } ++} ++ ++void MatchFinder_MoveBlock(CMatchFinder *p) ++{ ++ memmove(p->bufferBase, ++ p->buffer - p->keepSizeBefore, ++ (size_t)(p->streamPos - p->pos + p->keepSizeBefore)); ++ p->buffer = p->bufferBase + p->keepSizeBefore; ++} ++ ++int MatchFinder_NeedMove(CMatchFinder *p) ++{ ++ if (p->directInput) ++ return 0; ++ /* if (p->streamEndWasReached) return 0; */ ++ return ((size_t)(p->bufferBase + p->blockSize - p->buffer) <= p->keepSizeAfter); ++} ++ ++void MatchFinder_ReadIfRequired(CMatchFinder *p) ++{ ++ if (p->streamEndWasReached) ++ return; ++ if (p->keepSizeAfter >= p->streamPos - p->pos) ++ MatchFinder_ReadBlock(p); ++} ++ ++static void MatchFinder_CheckAndMoveAndRead(CMatchFinder *p) ++{ ++ if (MatchFinder_NeedMove(p)) ++ MatchFinder_MoveBlock(p); ++ MatchFinder_ReadBlock(p); ++} ++ ++static void MatchFinder_SetDefaultSettings(CMatchFinder *p) ++{ ++ p->cutValue = 32; ++ p->btMode = 1; ++ p->numHashBytes = 4; ++ p->bigHash = 0; ++} ++ ++#define kCrcPoly 0xEDB88320 ++ ++void MatchFinder_Construct(CMatchFinder *p) ++{ ++ UInt32 i; ++ p->bufferBase = 0; ++ p->directInput = 0; ++ p->hash = 0; ++ MatchFinder_SetDefaultSettings(p); ++ ++ for (i = 0; i < 256; i++) ++ { ++ UInt32 r = i; ++ int j; ++ for (j = 0; j < 8; j++) ++ r = (r >> 1) ^ (kCrcPoly & ~((r & 1) - 1)); ++ p->crc[i] = r; ++ } ++} ++ ++static void MatchFinder_FreeThisClassMemory(CMatchFinder *p, ISzAlloc *alloc) ++{ ++ alloc->Free(alloc, p->hash); ++ p->hash = 0; ++} ++ ++void MatchFinder_Free(CMatchFinder *p, ISzAlloc *alloc) ++{ ++ MatchFinder_FreeThisClassMemory(p, alloc); ++ LzInWindow_Free(p, alloc); ++} ++ ++static CLzRef* AllocRefs(UInt32 num, ISzAlloc *alloc) ++{ ++ size_t sizeInBytes = (size_t)num * sizeof(CLzRef); ++ if (sizeInBytes / sizeof(CLzRef) != num) ++ return 0; ++ return (CLzRef *)alloc->Alloc(alloc, sizeInBytes); ++} ++ ++int MatchFinder_Create(CMatchFinder *p, UInt32 historySize, ++ UInt32 keepAddBufferBefore, UInt32 matchMaxLen, UInt32 keepAddBufferAfter, ++ ISzAlloc *alloc) ++{ ++ UInt32 sizeReserv; ++ if (historySize > kMaxHistorySize) ++ { ++ MatchFinder_Free(p, alloc); ++ return 0; ++ } ++ sizeReserv = historySize >> 1; ++ if (historySize > ((UInt32)2 << 30)) ++ sizeReserv = historySize >> 2; ++ sizeReserv += (keepAddBufferBefore + matchMaxLen + keepAddBufferAfter) / 2 + (1 << 19); ++ ++ p->keepSizeBefore = historySize + keepAddBufferBefore + 1; ++ p->keepSizeAfter = matchMaxLen + keepAddBufferAfter; ++ /* we need one additional byte, since we use MoveBlock after pos++ and before dictionary using */ ++ if (LzInWindow_Create(p, sizeReserv, alloc)) ++ { ++ UInt32 newCyclicBufferSize = historySize + 1; ++ UInt32 hs; ++ p->matchMaxLen = matchMaxLen; ++ { ++ p->fixedHashSize = 0; ++ if (p->numHashBytes == 2) ++ hs = (1 << 16) - 1; ++ else ++ { ++ hs = historySize - 1; ++ hs |= (hs >> 1); ++ hs |= (hs >> 2); ++ hs |= (hs >> 4); ++ hs |= (hs >> 8); ++ hs >>= 1; ++ hs |= 0xFFFF; /* don't change it! It's required for Deflate */ ++ if (hs > (1 << 24)) ++ { ++ if (p->numHashBytes == 3) ++ hs = (1 << 24) - 1; ++ else ++ hs >>= 1; ++ } ++ } ++ p->hashMask = hs; ++ hs++; ++ if (p->numHashBytes > 2) p->fixedHashSize += kHash2Size; ++ if (p->numHashBytes > 3) p->fixedHashSize += kHash3Size; ++ if (p->numHashBytes > 4) p->fixedHashSize += kHash4Size; ++ hs += p->fixedHashSize; ++ } ++ ++ { ++ UInt32 prevSize = p->hashSizeSum + p->numSons; ++ UInt32 newSize; ++ p->historySize = historySize; ++ p->hashSizeSum = hs; ++ p->cyclicBufferSize = newCyclicBufferSize; ++ p->numSons = (p->btMode ? newCyclicBufferSize * 2 : newCyclicBufferSize); ++ newSize = p->hashSizeSum + p->numSons; ++ if (p->hash != 0 && prevSize == newSize) ++ return 1; ++ MatchFinder_FreeThisClassMemory(p, alloc); ++ p->hash = AllocRefs(newSize, alloc); ++ if (p->hash != 0) ++ { ++ p->son = p->hash + p->hashSizeSum; ++ return 1; ++ } ++ } ++ } ++ MatchFinder_Free(p, alloc); ++ return 0; ++} ++ ++static void MatchFinder_SetLimits(CMatchFinder *p) ++{ ++ UInt32 limit = kMaxValForNormalize - p->pos; ++ UInt32 limit2 = p->cyclicBufferSize - p->cyclicBufferPos; ++ if (limit2 < limit) ++ limit = limit2; ++ limit2 = p->streamPos - p->pos; ++ if (limit2 <= p->keepSizeAfter) ++ { ++ if (limit2 > 0) ++ limit2 = 1; ++ } ++ else ++ limit2 -= p->keepSizeAfter; ++ if (limit2 < limit) ++ limit = limit2; ++ { ++ UInt32 lenLimit = p->streamPos - p->pos; ++ if (lenLimit > p->matchMaxLen) ++ lenLimit = p->matchMaxLen; ++ p->lenLimit = lenLimit; ++ } ++ p->posLimit = p->pos + limit; ++} ++ ++void MatchFinder_Init(CMatchFinder *p) ++{ ++ UInt32 i; ++ for (i = 0; i < p->hashSizeSum; i++) ++ p->hash[i] = kEmptyHashValue; ++ p->cyclicBufferPos = 0; ++ p->buffer = p->bufferBase; ++ p->pos = p->streamPos = p->cyclicBufferSize; ++ p->result = SZ_OK; ++ p->streamEndWasReached = 0; ++ MatchFinder_ReadBlock(p); ++ MatchFinder_SetLimits(p); ++} ++ ++static UInt32 MatchFinder_GetSubValue(CMatchFinder *p) ++{ ++ return (p->pos - p->historySize - 1) & kNormalizeMask; ++} ++ ++void MatchFinder_Normalize3(UInt32 subValue, CLzRef *items, UInt32 numItems) ++{ ++ UInt32 i; ++ for (i = 0; i < numItems; i++) ++ { ++ UInt32 value = items[i]; ++ if (value <= subValue) ++ value = kEmptyHashValue; ++ else ++ value -= subValue; ++ items[i] = value; ++ } ++} ++ ++static void MatchFinder_Normalize(CMatchFinder *p) ++{ ++ UInt32 subValue = MatchFinder_GetSubValue(p); ++ MatchFinder_Normalize3(subValue, p->hash, p->hashSizeSum + p->numSons); ++ MatchFinder_ReduceOffsets(p, subValue); ++} ++ ++static void MatchFinder_CheckLimits(CMatchFinder *p) ++{ ++ if (p->pos == kMaxValForNormalize) ++ MatchFinder_Normalize(p); ++ if (!p->streamEndWasReached && p->keepSizeAfter == p->streamPos - p->pos) ++ MatchFinder_CheckAndMoveAndRead(p); ++ if (p->cyclicBufferPos == p->cyclicBufferSize) ++ p->cyclicBufferPos = 0; ++ MatchFinder_SetLimits(p); ++} ++ ++static UInt32 * Hc_GetMatchesSpec(UInt32 lenLimit, UInt32 curMatch, UInt32 pos, const Byte *cur, CLzRef *son, ++ UInt32 _cyclicBufferPos, UInt32 _cyclicBufferSize, UInt32 cutValue, ++ UInt32 *distances, UInt32 maxLen) ++{ ++ son[_cyclicBufferPos] = curMatch; ++ for (;;) ++ { ++ UInt32 delta = pos - curMatch; ++ if (cutValue-- == 0 || delta >= _cyclicBufferSize) ++ return distances; ++ { ++ const Byte *pb = cur - delta; ++ curMatch = son[_cyclicBufferPos - delta + ((delta > _cyclicBufferPos) ? _cyclicBufferSize : 0)]; ++ if (pb[maxLen] == cur[maxLen] && *pb == *cur) ++ { ++ UInt32 len = 0; ++ while (++len != lenLimit) ++ if (pb[len] != cur[len]) ++ break; ++ if (maxLen < len) ++ { ++ *distances++ = maxLen = len; ++ *distances++ = delta - 1; ++ if (len == lenLimit) ++ return distances; ++ } ++ } ++ } ++ } ++} ++ ++UInt32 * GetMatchesSpec1(UInt32 lenLimit, UInt32 curMatch, UInt32 pos, const Byte *cur, CLzRef *son, ++ UInt32 _cyclicBufferPos, UInt32 _cyclicBufferSize, UInt32 cutValue, ++ UInt32 *distances, UInt32 maxLen) ++{ ++ CLzRef *ptr0 = son + (_cyclicBufferPos << 1) + 1; ++ CLzRef *ptr1 = son + (_cyclicBufferPos << 1); ++ UInt32 len0 = 0, len1 = 0; ++ for (;;) ++ { ++ UInt32 delta = pos - curMatch; ++ if (cutValue-- == 0 || delta >= _cyclicBufferSize) ++ { ++ *ptr0 = *ptr1 = kEmptyHashValue; ++ return distances; ++ } ++ { ++ CLzRef *pair = son + ((_cyclicBufferPos - delta + ((delta > _cyclicBufferPos) ? _cyclicBufferSize : 0)) << 1); ++ const Byte *pb = cur - delta; ++ UInt32 len = (len0 < len1 ? len0 : len1); ++ if (pb[len] == cur[len]) ++ { ++ if (++len != lenLimit && pb[len] == cur[len]) ++ while (++len != lenLimit) ++ if (pb[len] != cur[len]) ++ break; ++ if (maxLen < len) ++ { ++ *distances++ = maxLen = len; ++ *distances++ = delta - 1; ++ if (len == lenLimit) ++ { ++ *ptr1 = pair[0]; ++ *ptr0 = pair[1]; ++ return distances; ++ } ++ } ++ } ++ if (pb[len] < cur[len]) ++ { ++ *ptr1 = curMatch; ++ ptr1 = pair + 1; ++ curMatch = *ptr1; ++ len1 = len; ++ } ++ else ++ { ++ *ptr0 = curMatch; ++ ptr0 = pair; ++ curMatch = *ptr0; ++ len0 = len; ++ } ++ } ++ } ++} ++ ++static void SkipMatchesSpec(UInt32 lenLimit, UInt32 curMatch, UInt32 pos, const Byte *cur, CLzRef *son, ++ UInt32 _cyclicBufferPos, UInt32 _cyclicBufferSize, UInt32 cutValue) ++{ ++ CLzRef *ptr0 = son + (_cyclicBufferPos << 1) + 1; ++ CLzRef *ptr1 = son + (_cyclicBufferPos << 1); ++ UInt32 len0 = 0, len1 = 0; ++ for (;;) ++ { ++ UInt32 delta = pos - curMatch; ++ if (cutValue-- == 0 || delta >= _cyclicBufferSize) ++ { ++ *ptr0 = *ptr1 = kEmptyHashValue; ++ return; ++ } ++ { ++ CLzRef *pair = son + ((_cyclicBufferPos - delta + ((delta > _cyclicBufferPos) ? _cyclicBufferSize : 0)) << 1); ++ const Byte *pb = cur - delta; ++ UInt32 len = (len0 < len1 ? len0 : len1); ++ if (pb[len] == cur[len]) ++ { ++ while (++len != lenLimit) ++ if (pb[len] != cur[len]) ++ break; ++ { ++ if (len == lenLimit) ++ { ++ *ptr1 = pair[0]; ++ *ptr0 = pair[1]; ++ return; ++ } ++ } ++ } ++ if (pb[len] < cur[len]) ++ { ++ *ptr1 = curMatch; ++ ptr1 = pair + 1; ++ curMatch = *ptr1; ++ len1 = len; ++ } ++ else ++ { ++ *ptr0 = curMatch; ++ ptr0 = pair; ++ curMatch = *ptr0; ++ len0 = len; ++ } ++ } ++ } ++} ++ ++#define MOVE_POS \ ++ ++p->cyclicBufferPos; \ ++ p->buffer++; \ ++ if (++p->pos == p->posLimit) MatchFinder_CheckLimits(p); ++ ++#define MOVE_POS_RET MOVE_POS return offset; ++ ++static void MatchFinder_MovePos(CMatchFinder *p) { MOVE_POS; } ++ ++#define GET_MATCHES_HEADER2(minLen, ret_op) \ ++ UInt32 lenLimit; UInt32 hashValue; const Byte *cur; UInt32 curMatch; \ ++ lenLimit = p->lenLimit; { if (lenLimit < minLen) { MatchFinder_MovePos(p); ret_op; }} \ ++ cur = p->buffer; ++ ++#define GET_MATCHES_HEADER(minLen) GET_MATCHES_HEADER2(minLen, return 0) ++#define SKIP_HEADER(minLen) GET_MATCHES_HEADER2(minLen, continue) ++ ++#define MF_PARAMS(p) p->pos, p->buffer, p->son, p->cyclicBufferPos, p->cyclicBufferSize, p->cutValue ++ ++#define GET_MATCHES_FOOTER(offset, maxLen) \ ++ offset = (UInt32)(GetMatchesSpec1(lenLimit, curMatch, MF_PARAMS(p), \ ++ distances + offset, maxLen) - distances); MOVE_POS_RET; ++ ++#define SKIP_FOOTER \ ++ SkipMatchesSpec(lenLimit, curMatch, MF_PARAMS(p)); MOVE_POS; ++ ++static UInt32 Bt2_MatchFinder_GetMatches(CMatchFinder *p, UInt32 *distances) ++{ ++ UInt32 offset; ++ GET_MATCHES_HEADER(2) ++ HASH2_CALC; ++ curMatch = p->hash[hashValue]; ++ p->hash[hashValue] = p->pos; ++ offset = 0; ++ GET_MATCHES_FOOTER(offset, 1) ++} ++ ++UInt32 Bt3Zip_MatchFinder_GetMatches(CMatchFinder *p, UInt32 *distances) ++{ ++ UInt32 offset; ++ GET_MATCHES_HEADER(3) ++ HASH_ZIP_CALC; ++ curMatch = p->hash[hashValue]; ++ p->hash[hashValue] = p->pos; ++ offset = 0; ++ GET_MATCHES_FOOTER(offset, 2) ++} ++ ++static UInt32 Bt3_MatchFinder_GetMatches(CMatchFinder *p, UInt32 *distances) ++{ ++ UInt32 hash2Value, delta2, maxLen, offset; ++ GET_MATCHES_HEADER(3) ++ ++ HASH3_CALC; ++ ++ delta2 = p->pos - p->hash[hash2Value]; ++ curMatch = p->hash[kFix3HashSize + hashValue]; ++ ++ p->hash[hash2Value] = ++ p->hash[kFix3HashSize + hashValue] = p->pos; ++ ++ ++ maxLen = 2; ++ offset = 0; ++ if (delta2 < p->cyclicBufferSize && *(cur - delta2) == *cur) ++ { ++ for (; maxLen != lenLimit; maxLen++) ++ if (cur[(ptrdiff_t)maxLen - delta2] != cur[maxLen]) ++ break; ++ distances[0] = maxLen; ++ distances[1] = delta2 - 1; ++ offset = 2; ++ if (maxLen == lenLimit) ++ { ++ SkipMatchesSpec(lenLimit, curMatch, MF_PARAMS(p)); ++ MOVE_POS_RET; ++ } ++ } ++ GET_MATCHES_FOOTER(offset, maxLen) ++} ++ ++static UInt32 Bt4_MatchFinder_GetMatches(CMatchFinder *p, UInt32 *distances) ++{ ++ UInt32 hash2Value, hash3Value, delta2, delta3, maxLen, offset; ++ GET_MATCHES_HEADER(4) ++ ++ HASH4_CALC; ++ ++ delta2 = p->pos - p->hash[ hash2Value]; ++ delta3 = p->pos - p->hash[kFix3HashSize + hash3Value]; ++ curMatch = p->hash[kFix4HashSize + hashValue]; ++ ++ p->hash[ hash2Value] = ++ p->hash[kFix3HashSize + hash3Value] = ++ p->hash[kFix4HashSize + hashValue] = p->pos; ++ ++ maxLen = 1; ++ offset = 0; ++ if (delta2 < p->cyclicBufferSize && *(cur - delta2) == *cur) ++ { ++ distances[0] = maxLen = 2; ++ distances[1] = delta2 - 1; ++ offset = 2; ++ } ++ if (delta2 != delta3 && delta3 < p->cyclicBufferSize && *(cur - delta3) == *cur) ++ { ++ maxLen = 3; ++ distances[offset + 1] = delta3 - 1; ++ offset += 2; ++ delta2 = delta3; ++ } ++ if (offset != 0) ++ { ++ for (; maxLen != lenLimit; maxLen++) ++ if (cur[(ptrdiff_t)maxLen - delta2] != cur[maxLen]) ++ break; ++ distances[offset - 2] = maxLen; ++ if (maxLen == lenLimit) ++ { ++ SkipMatchesSpec(lenLimit, curMatch, MF_PARAMS(p)); ++ MOVE_POS_RET; ++ } ++ } ++ if (maxLen < 3) ++ maxLen = 3; ++ GET_MATCHES_FOOTER(offset, maxLen) ++} ++ ++static UInt32 Hc4_MatchFinder_GetMatches(CMatchFinder *p, UInt32 *distances) ++{ ++ UInt32 hash2Value, hash3Value, delta2, delta3, maxLen, offset; ++ GET_MATCHES_HEADER(4) ++ ++ HASH4_CALC; ++ ++ delta2 = p->pos - p->hash[ hash2Value]; ++ delta3 = p->pos - p->hash[kFix3HashSize + hash3Value]; ++ curMatch = p->hash[kFix4HashSize + hashValue]; ++ ++ p->hash[ hash2Value] = ++ p->hash[kFix3HashSize + hash3Value] = ++ p->hash[kFix4HashSize + hashValue] = p->pos; ++ ++ maxLen = 1; ++ offset = 0; ++ if (delta2 < p->cyclicBufferSize && *(cur - delta2) == *cur) ++ { ++ distances[0] = maxLen = 2; ++ distances[1] = delta2 - 1; ++ offset = 2; ++ } ++ if (delta2 != delta3 && delta3 < p->cyclicBufferSize && *(cur - delta3) == *cur) ++ { ++ maxLen = 3; ++ distances[offset + 1] = delta3 - 1; ++ offset += 2; ++ delta2 = delta3; ++ } ++ if (offset != 0) ++ { ++ for (; maxLen != lenLimit; maxLen++) ++ if (cur[(ptrdiff_t)maxLen - delta2] != cur[maxLen]) ++ break; ++ distances[offset - 2] = maxLen; ++ if (maxLen == lenLimit) ++ { ++ p->son[p->cyclicBufferPos] = curMatch; ++ MOVE_POS_RET; ++ } ++ } ++ if (maxLen < 3) ++ maxLen = 3; ++ offset = (UInt32)(Hc_GetMatchesSpec(lenLimit, curMatch, MF_PARAMS(p), ++ distances + offset, maxLen) - (distances)); ++ MOVE_POS_RET ++} ++ ++UInt32 Hc3Zip_MatchFinder_GetMatches(CMatchFinder *p, UInt32 *distances) ++{ ++ UInt32 offset; ++ GET_MATCHES_HEADER(3) ++ HASH_ZIP_CALC; ++ curMatch = p->hash[hashValue]; ++ p->hash[hashValue] = p->pos; ++ offset = (UInt32)(Hc_GetMatchesSpec(lenLimit, curMatch, MF_PARAMS(p), ++ distances, 2) - (distances)); ++ MOVE_POS_RET ++} ++ ++static void Bt2_MatchFinder_Skip(CMatchFinder *p, UInt32 num) ++{ ++ do ++ { ++ SKIP_HEADER(2) ++ HASH2_CALC; ++ curMatch = p->hash[hashValue]; ++ p->hash[hashValue] = p->pos; ++ SKIP_FOOTER ++ } ++ while (--num != 0); ++} ++ ++void Bt3Zip_MatchFinder_Skip(CMatchFinder *p, UInt32 num) ++{ ++ do ++ { ++ SKIP_HEADER(3) ++ HASH_ZIP_CALC; ++ curMatch = p->hash[hashValue]; ++ p->hash[hashValue] = p->pos; ++ SKIP_FOOTER ++ } ++ while (--num != 0); ++} ++ ++static void Bt3_MatchFinder_Skip(CMatchFinder *p, UInt32 num) ++{ ++ do ++ { ++ UInt32 hash2Value; ++ SKIP_HEADER(3) ++ HASH3_CALC; ++ curMatch = p->hash[kFix3HashSize + hashValue]; ++ p->hash[hash2Value] = ++ p->hash[kFix3HashSize + hashValue] = p->pos; ++ SKIP_FOOTER ++ } ++ while (--num != 0); ++} ++ ++static void Bt4_MatchFinder_Skip(CMatchFinder *p, UInt32 num) ++{ ++ do ++ { ++ UInt32 hash2Value, hash3Value; ++ SKIP_HEADER(4) ++ HASH4_CALC; ++ curMatch = p->hash[kFix4HashSize + hashValue]; ++ p->hash[ hash2Value] = ++ p->hash[kFix3HashSize + hash3Value] = p->pos; ++ p->hash[kFix4HashSize + hashValue] = p->pos; ++ SKIP_FOOTER ++ } ++ while (--num != 0); ++} ++ ++static void Hc4_MatchFinder_Skip(CMatchFinder *p, UInt32 num) ++{ ++ do ++ { ++ UInt32 hash2Value, hash3Value; ++ SKIP_HEADER(4) ++ HASH4_CALC; ++ curMatch = p->hash[kFix4HashSize + hashValue]; ++ p->hash[ hash2Value] = ++ p->hash[kFix3HashSize + hash3Value] = ++ p->hash[kFix4HashSize + hashValue] = p->pos; ++ p->son[p->cyclicBufferPos] = curMatch; ++ MOVE_POS ++ } ++ while (--num != 0); ++} ++ ++void Hc3Zip_MatchFinder_Skip(CMatchFinder *p, UInt32 num) ++{ ++ do ++ { ++ SKIP_HEADER(3) ++ HASH_ZIP_CALC; ++ curMatch = p->hash[hashValue]; ++ p->hash[hashValue] = p->pos; ++ p->son[p->cyclicBufferPos] = curMatch; ++ MOVE_POS ++ } ++ while (--num != 0); ++} ++ ++void MatchFinder_CreateVTable(CMatchFinder *p, IMatchFinder *vTable) ++{ ++ vTable->Init = (Mf_Init_Func)MatchFinder_Init; ++ vTable->GetIndexByte = (Mf_GetIndexByte_Func)MatchFinder_GetIndexByte; ++ vTable->GetNumAvailableBytes = (Mf_GetNumAvailableBytes_Func)MatchFinder_GetNumAvailableBytes; ++ vTable->GetPointerToCurrentPos = (Mf_GetPointerToCurrentPos_Func)MatchFinder_GetPointerToCurrentPos; ++ if (!p->btMode) ++ { ++ vTable->GetMatches = (Mf_GetMatches_Func)Hc4_MatchFinder_GetMatches; ++ vTable->Skip = (Mf_Skip_Func)Hc4_MatchFinder_Skip; ++ } ++ else if (p->numHashBytes == 2) ++ { ++ vTable->GetMatches = (Mf_GetMatches_Func)Bt2_MatchFinder_GetMatches; ++ vTable->Skip = (Mf_Skip_Func)Bt2_MatchFinder_Skip; ++ } ++ else if (p->numHashBytes == 3) ++ { ++ vTable->GetMatches = (Mf_GetMatches_Func)Bt3_MatchFinder_GetMatches; ++ vTable->Skip = (Mf_Skip_Func)Bt3_MatchFinder_Skip; ++ } ++ else ++ { ++ vTable->GetMatches = (Mf_GetMatches_Func)Bt4_MatchFinder_GetMatches; ++ vTable->Skip = (Mf_Skip_Func)Bt4_MatchFinder_Skip; ++ } ++} +--- /dev/null ++++ b/lib/lzma/LzmaDec.c +@@ -0,0 +1,999 @@ ++/* LzmaDec.c -- LZMA Decoder ++2009-09-20 : Igor Pavlov : Public domain */ ++ ++#include "LzmaDec.h" ++ ++#include ++ ++#define kNumTopBits 24 ++#define kTopValue ((UInt32)1 << kNumTopBits) ++ ++#define kNumBitModelTotalBits 11 ++#define kBitModelTotal (1 << kNumBitModelTotalBits) ++#define kNumMoveBits 5 ++ ++#define RC_INIT_SIZE 5 ++ ++#define NORMALIZE if (range < kTopValue) { range <<= 8; code = (code << 8) | (*buf++); } ++ ++#define IF_BIT_0(p) ttt = *(p); NORMALIZE; bound = (range >> kNumBitModelTotalBits) * ttt; if (code < bound) ++#define UPDATE_0(p) range = bound; *(p) = (CLzmaProb)(ttt + ((kBitModelTotal - ttt) >> kNumMoveBits)); ++#define UPDATE_1(p) range -= bound; code -= bound; *(p) = (CLzmaProb)(ttt - (ttt >> kNumMoveBits)); ++#define GET_BIT2(p, i, A0, A1) IF_BIT_0(p) \ ++ { UPDATE_0(p); i = (i + i); A0; } else \ ++ { UPDATE_1(p); i = (i + i) + 1; A1; } ++#define GET_BIT(p, i) GET_BIT2(p, i, ; , ;) ++ ++#define TREE_GET_BIT(probs, i) { GET_BIT((probs + i), i); } ++#define TREE_DECODE(probs, limit, i) \ ++ { i = 1; do { TREE_GET_BIT(probs, i); } while (i < limit); i -= limit; } ++ ++/* #define _LZMA_SIZE_OPT */ ++ ++#ifdef _LZMA_SIZE_OPT ++#define TREE_6_DECODE(probs, i) TREE_DECODE(probs, (1 << 6), i) ++#else ++#define TREE_6_DECODE(probs, i) \ ++ { i = 1; \ ++ TREE_GET_BIT(probs, i); \ ++ TREE_GET_BIT(probs, i); \ ++ TREE_GET_BIT(probs, i); \ ++ TREE_GET_BIT(probs, i); \ ++ TREE_GET_BIT(probs, i); \ ++ TREE_GET_BIT(probs, i); \ ++ i -= 0x40; } ++#endif ++ ++#define NORMALIZE_CHECK if (range < kTopValue) { if (buf >= bufLimit) return DUMMY_ERROR; range <<= 8; code = (code << 8) | (*buf++); } ++ ++#define IF_BIT_0_CHECK(p) ttt = *(p); NORMALIZE_CHECK; bound = (range >> kNumBitModelTotalBits) * ttt; if (code < bound) ++#define UPDATE_0_CHECK range = bound; ++#define UPDATE_1_CHECK range -= bound; code -= bound; ++#define GET_BIT2_CHECK(p, i, A0, A1) IF_BIT_0_CHECK(p) \ ++ { UPDATE_0_CHECK; i = (i + i); A0; } else \ ++ { UPDATE_1_CHECK; i = (i + i) + 1; A1; } ++#define GET_BIT_CHECK(p, i) GET_BIT2_CHECK(p, i, ; , ;) ++#define TREE_DECODE_CHECK(probs, limit, i) \ ++ { i = 1; do { GET_BIT_CHECK(probs + i, i) } while (i < limit); i -= limit; } ++ ++ ++#define kNumPosBitsMax 4 ++#define kNumPosStatesMax (1 << kNumPosBitsMax) ++ ++#define kLenNumLowBits 3 ++#define kLenNumLowSymbols (1 << kLenNumLowBits) ++#define kLenNumMidBits 3 ++#define kLenNumMidSymbols (1 << kLenNumMidBits) ++#define kLenNumHighBits 8 ++#define kLenNumHighSymbols (1 << kLenNumHighBits) ++ ++#define LenChoice 0 ++#define LenChoice2 (LenChoice + 1) ++#define LenLow (LenChoice2 + 1) ++#define LenMid (LenLow + (kNumPosStatesMax << kLenNumLowBits)) ++#define LenHigh (LenMid + (kNumPosStatesMax << kLenNumMidBits)) ++#define kNumLenProbs (LenHigh + kLenNumHighSymbols) ++ ++ ++#define kNumStates 12 ++#define kNumLitStates 7 ++ ++#define kStartPosModelIndex 4 ++#define kEndPosModelIndex 14 ++#define kNumFullDistances (1 << (kEndPosModelIndex >> 1)) ++ ++#define kNumPosSlotBits 6 ++#define kNumLenToPosStates 4 ++ ++#define kNumAlignBits 4 ++#define kAlignTableSize (1 << kNumAlignBits) ++ ++#define kMatchMinLen 2 ++#define kMatchSpecLenStart (kMatchMinLen + kLenNumLowSymbols + kLenNumMidSymbols + kLenNumHighSymbols) ++ ++#define IsMatch 0 ++#define IsRep (IsMatch + (kNumStates << kNumPosBitsMax)) ++#define IsRepG0 (IsRep + kNumStates) ++#define IsRepG1 (IsRepG0 + kNumStates) ++#define IsRepG2 (IsRepG1 + kNumStates) ++#define IsRep0Long (IsRepG2 + kNumStates) ++#define PosSlot (IsRep0Long + (kNumStates << kNumPosBitsMax)) ++#define SpecPos (PosSlot + (kNumLenToPosStates << kNumPosSlotBits)) ++#define Align (SpecPos + kNumFullDistances - kEndPosModelIndex) ++#define LenCoder (Align + kAlignTableSize) ++#define RepLenCoder (LenCoder + kNumLenProbs) ++#define Literal (RepLenCoder + kNumLenProbs) ++ ++#define LZMA_BASE_SIZE 1846 ++#define LZMA_LIT_SIZE 768 ++ ++#define LzmaProps_GetNumProbs(p) ((UInt32)LZMA_BASE_SIZE + (LZMA_LIT_SIZE << ((p)->lc + (p)->lp))) ++ ++#if Literal != LZMA_BASE_SIZE ++StopCompilingDueBUG ++#endif ++ ++#define LZMA_DIC_MIN (1 << 12) ++ ++/* First LZMA-symbol is always decoded. ++And it decodes new LZMA-symbols while (buf < bufLimit), but "buf" is without last normalization ++Out: ++ Result: ++ SZ_OK - OK ++ SZ_ERROR_DATA - Error ++ p->remainLen: ++ < kMatchSpecLenStart : normal remain ++ = kMatchSpecLenStart : finished ++ = kMatchSpecLenStart + 1 : Flush marker ++ = kMatchSpecLenStart + 2 : State Init Marker ++*/ ++ ++static int MY_FAST_CALL LzmaDec_DecodeReal(CLzmaDec *p, SizeT limit, const Byte *bufLimit) ++{ ++ CLzmaProb *probs = p->probs; ++ ++ unsigned state = p->state; ++ UInt32 rep0 = p->reps[0], rep1 = p->reps[1], rep2 = p->reps[2], rep3 = p->reps[3]; ++ unsigned pbMask = ((unsigned)1 << (p->prop.pb)) - 1; ++ unsigned lpMask = ((unsigned)1 << (p->prop.lp)) - 1; ++ unsigned lc = p->prop.lc; ++ ++ Byte *dic = p->dic; ++ SizeT dicBufSize = p->dicBufSize; ++ SizeT dicPos = p->dicPos; ++ ++ UInt32 processedPos = p->processedPos; ++ UInt32 checkDicSize = p->checkDicSize; ++ unsigned len = 0; ++ ++ const Byte *buf = p->buf; ++ UInt32 range = p->range; ++ UInt32 code = p->code; ++ ++ do ++ { ++ CLzmaProb *prob; ++ UInt32 bound; ++ unsigned ttt; ++ unsigned posState = processedPos & pbMask; ++ ++ prob = probs + IsMatch + (state << kNumPosBitsMax) + posState; ++ IF_BIT_0(prob) ++ { ++ unsigned symbol; ++ UPDATE_0(prob); ++ prob = probs + Literal; ++ if (checkDicSize != 0 || processedPos != 0) ++ prob += (LZMA_LIT_SIZE * (((processedPos & lpMask) << lc) + ++ (dic[(dicPos == 0 ? dicBufSize : dicPos) - 1] >> (8 - lc)))); ++ ++ if (state < kNumLitStates) ++ { ++ state -= (state < 4) ? state : 3; ++ symbol = 1; ++ do { GET_BIT(prob + symbol, symbol) } while (symbol < 0x100); ++ } ++ else ++ { ++ unsigned matchByte = p->dic[(dicPos - rep0) + ((dicPos < rep0) ? dicBufSize : 0)]; ++ unsigned offs = 0x100; ++ state -= (state < 10) ? 3 : 6; ++ symbol = 1; ++ do ++ { ++ unsigned bit; ++ CLzmaProb *probLit; ++ matchByte <<= 1; ++ bit = (matchByte & offs); ++ probLit = prob + offs + bit + symbol; ++ GET_BIT2(probLit, symbol, offs &= ~bit, offs &= bit) ++ } ++ while (symbol < 0x100); ++ } ++ dic[dicPos++] = (Byte)symbol; ++ processedPos++; ++ continue; ++ } ++ else ++ { ++ UPDATE_1(prob); ++ prob = probs + IsRep + state; ++ IF_BIT_0(prob) ++ { ++ UPDATE_0(prob); ++ state += kNumStates; ++ prob = probs + LenCoder; ++ } ++ else ++ { ++ UPDATE_1(prob); ++ if (checkDicSize == 0 && processedPos == 0) ++ return SZ_ERROR_DATA; ++ prob = probs + IsRepG0 + state; ++ IF_BIT_0(prob) ++ { ++ UPDATE_0(prob); ++ prob = probs + IsRep0Long + (state << kNumPosBitsMax) + posState; ++ IF_BIT_0(prob) ++ { ++ UPDATE_0(prob); ++ dic[dicPos] = dic[(dicPos - rep0) + ((dicPos < rep0) ? dicBufSize : 0)]; ++ dicPos++; ++ processedPos++; ++ state = state < kNumLitStates ? 9 : 11; ++ continue; ++ } ++ UPDATE_1(prob); ++ } ++ else ++ { ++ UInt32 distance; ++ UPDATE_1(prob); ++ prob = probs + IsRepG1 + state; ++ IF_BIT_0(prob) ++ { ++ UPDATE_0(prob); ++ distance = rep1; ++ } ++ else ++ { ++ UPDATE_1(prob); ++ prob = probs + IsRepG2 + state; ++ IF_BIT_0(prob) ++ { ++ UPDATE_0(prob); ++ distance = rep2; ++ } ++ else ++ { ++ UPDATE_1(prob); ++ distance = rep3; ++ rep3 = rep2; ++ } ++ rep2 = rep1; ++ } ++ rep1 = rep0; ++ rep0 = distance; ++ } ++ state = state < kNumLitStates ? 8 : 11; ++ prob = probs + RepLenCoder; ++ } ++ { ++ unsigned limit, offset; ++ CLzmaProb *probLen = prob + LenChoice; ++ IF_BIT_0(probLen) ++ { ++ UPDATE_0(probLen); ++ probLen = prob + LenLow + (posState << kLenNumLowBits); ++ offset = 0; ++ limit = (1 << kLenNumLowBits); ++ } ++ else ++ { ++ UPDATE_1(probLen); ++ probLen = prob + LenChoice2; ++ IF_BIT_0(probLen) ++ { ++ UPDATE_0(probLen); ++ probLen = prob + LenMid + (posState << kLenNumMidBits); ++ offset = kLenNumLowSymbols; ++ limit = (1 << kLenNumMidBits); ++ } ++ else ++ { ++ UPDATE_1(probLen); ++ probLen = prob + LenHigh; ++ offset = kLenNumLowSymbols + kLenNumMidSymbols; ++ limit = (1 << kLenNumHighBits); ++ } ++ } ++ TREE_DECODE(probLen, limit, len); ++ len += offset; ++ } ++ ++ if (state >= kNumStates) ++ { ++ UInt32 distance; ++ prob = probs + PosSlot + ++ ((len < kNumLenToPosStates ? len : kNumLenToPosStates - 1) << kNumPosSlotBits); ++ TREE_6_DECODE(prob, distance); ++ if (distance >= kStartPosModelIndex) ++ { ++ unsigned posSlot = (unsigned)distance; ++ int numDirectBits = (int)(((distance >> 1) - 1)); ++ distance = (2 | (distance & 1)); ++ if (posSlot < kEndPosModelIndex) ++ { ++ distance <<= numDirectBits; ++ prob = probs + SpecPos + distance - posSlot - 1; ++ { ++ UInt32 mask = 1; ++ unsigned i = 1; ++ do ++ { ++ GET_BIT2(prob + i, i, ; , distance |= mask); ++ mask <<= 1; ++ } ++ while (--numDirectBits != 0); ++ } ++ } ++ else ++ { ++ numDirectBits -= kNumAlignBits; ++ do ++ { ++ NORMALIZE ++ range >>= 1; ++ ++ { ++ UInt32 t; ++ code -= range; ++ t = (0 - ((UInt32)code >> 31)); /* (UInt32)((Int32)code >> 31) */ ++ distance = (distance << 1) + (t + 1); ++ code += range & t; ++ } ++ /* ++ distance <<= 1; ++ if (code >= range) ++ { ++ code -= range; ++ distance |= 1; ++ } ++ */ ++ } ++ while (--numDirectBits != 0); ++ prob = probs + Align; ++ distance <<= kNumAlignBits; ++ { ++ unsigned i = 1; ++ GET_BIT2(prob + i, i, ; , distance |= 1); ++ GET_BIT2(prob + i, i, ; , distance |= 2); ++ GET_BIT2(prob + i, i, ; , distance |= 4); ++ GET_BIT2(prob + i, i, ; , distance |= 8); ++ } ++ if (distance == (UInt32)0xFFFFFFFF) ++ { ++ len += kMatchSpecLenStart; ++ state -= kNumStates; ++ break; ++ } ++ } ++ } ++ rep3 = rep2; ++ rep2 = rep1; ++ rep1 = rep0; ++ rep0 = distance + 1; ++ if (checkDicSize == 0) ++ { ++ if (distance >= processedPos) ++ return SZ_ERROR_DATA; ++ } ++ else if (distance >= checkDicSize) ++ return SZ_ERROR_DATA; ++ state = (state < kNumStates + kNumLitStates) ? kNumLitStates : kNumLitStates + 3; ++ } ++ ++ len += kMatchMinLen; ++ ++ if (limit == dicPos) ++ return SZ_ERROR_DATA; ++ { ++ SizeT rem = limit - dicPos; ++ unsigned curLen = ((rem < len) ? (unsigned)rem : len); ++ SizeT pos = (dicPos - rep0) + ((dicPos < rep0) ? dicBufSize : 0); ++ ++ processedPos += curLen; ++ ++ len -= curLen; ++ if (pos + curLen <= dicBufSize) ++ { ++ Byte *dest = dic + dicPos; ++ ptrdiff_t src = (ptrdiff_t)pos - (ptrdiff_t)dicPos; ++ const Byte *lim = dest + curLen; ++ dicPos += curLen; ++ do ++ *(dest) = (Byte)*(dest + src); ++ while (++dest != lim); ++ } ++ else ++ { ++ do ++ { ++ dic[dicPos++] = dic[pos]; ++ if (++pos == dicBufSize) ++ pos = 0; ++ } ++ while (--curLen != 0); ++ } ++ } ++ } ++ } ++ while (dicPos < limit && buf < bufLimit); ++ NORMALIZE; ++ p->buf = buf; ++ p->range = range; ++ p->code = code; ++ p->remainLen = len; ++ p->dicPos = dicPos; ++ p->processedPos = processedPos; ++ p->reps[0] = rep0; ++ p->reps[1] = rep1; ++ p->reps[2] = rep2; ++ p->reps[3] = rep3; ++ p->state = state; ++ ++ return SZ_OK; ++} ++ ++static void MY_FAST_CALL LzmaDec_WriteRem(CLzmaDec *p, SizeT limit) ++{ ++ if (p->remainLen != 0 && p->remainLen < kMatchSpecLenStart) ++ { ++ Byte *dic = p->dic; ++ SizeT dicPos = p->dicPos; ++ SizeT dicBufSize = p->dicBufSize; ++ unsigned len = p->remainLen; ++ UInt32 rep0 = p->reps[0]; ++ if (limit - dicPos < len) ++ len = (unsigned)(limit - dicPos); ++ ++ if (p->checkDicSize == 0 && p->prop.dicSize - p->processedPos <= len) ++ p->checkDicSize = p->prop.dicSize; ++ ++ p->processedPos += len; ++ p->remainLen -= len; ++ while (len-- != 0) ++ { ++ dic[dicPos] = dic[(dicPos - rep0) + ((dicPos < rep0) ? dicBufSize : 0)]; ++ dicPos++; ++ } ++ p->dicPos = dicPos; ++ } ++} ++ ++static int MY_FAST_CALL LzmaDec_DecodeReal2(CLzmaDec *p, SizeT limit, const Byte *bufLimit) ++{ ++ do ++ { ++ SizeT limit2 = limit; ++ if (p->checkDicSize == 0) ++ { ++ UInt32 rem = p->prop.dicSize - p->processedPos; ++ if (limit - p->dicPos > rem) ++ limit2 = p->dicPos + rem; ++ } ++ RINOK(LzmaDec_DecodeReal(p, limit2, bufLimit)); ++ if (p->processedPos >= p->prop.dicSize) ++ p->checkDicSize = p->prop.dicSize; ++ LzmaDec_WriteRem(p, limit); ++ } ++ while (p->dicPos < limit && p->buf < bufLimit && p->remainLen < kMatchSpecLenStart); ++ ++ if (p->remainLen > kMatchSpecLenStart) ++ { ++ p->remainLen = kMatchSpecLenStart; ++ } ++ return 0; ++} ++ ++typedef enum ++{ ++ DUMMY_ERROR, /* unexpected end of input stream */ ++ DUMMY_LIT, ++ DUMMY_MATCH, ++ DUMMY_REP ++} ELzmaDummy; ++ ++static ELzmaDummy LzmaDec_TryDummy(const CLzmaDec *p, const Byte *buf, SizeT inSize) ++{ ++ UInt32 range = p->range; ++ UInt32 code = p->code; ++ const Byte *bufLimit = buf + inSize; ++ CLzmaProb *probs = p->probs; ++ unsigned state = p->state; ++ ELzmaDummy res; ++ ++ { ++ CLzmaProb *prob; ++ UInt32 bound; ++ unsigned ttt; ++ unsigned posState = (p->processedPos) & ((1 << p->prop.pb) - 1); ++ ++ prob = probs + IsMatch + (state << kNumPosBitsMax) + posState; ++ IF_BIT_0_CHECK(prob) ++ { ++ UPDATE_0_CHECK ++ ++ /* if (bufLimit - buf >= 7) return DUMMY_LIT; */ ++ ++ prob = probs + Literal; ++ if (p->checkDicSize != 0 || p->processedPos != 0) ++ prob += (LZMA_LIT_SIZE * ++ ((((p->processedPos) & ((1 << (p->prop.lp)) - 1)) << p->prop.lc) + ++ (p->dic[(p->dicPos == 0 ? p->dicBufSize : p->dicPos) - 1] >> (8 - p->prop.lc)))); ++ ++ if (state < kNumLitStates) ++ { ++ unsigned symbol = 1; ++ do { GET_BIT_CHECK(prob + symbol, symbol) } while (symbol < 0x100); ++ } ++ else ++ { ++ unsigned matchByte = p->dic[p->dicPos - p->reps[0] + ++ ((p->dicPos < p->reps[0]) ? p->dicBufSize : 0)]; ++ unsigned offs = 0x100; ++ unsigned symbol = 1; ++ do ++ { ++ unsigned bit; ++ CLzmaProb *probLit; ++ matchByte <<= 1; ++ bit = (matchByte & offs); ++ probLit = prob + offs + bit + symbol; ++ GET_BIT2_CHECK(probLit, symbol, offs &= ~bit, offs &= bit) ++ } ++ while (symbol < 0x100); ++ } ++ res = DUMMY_LIT; ++ } ++ else ++ { ++ unsigned len; ++ UPDATE_1_CHECK; ++ ++ prob = probs + IsRep + state; ++ IF_BIT_0_CHECK(prob) ++ { ++ UPDATE_0_CHECK; ++ state = 0; ++ prob = probs + LenCoder; ++ res = DUMMY_MATCH; ++ } ++ else ++ { ++ UPDATE_1_CHECK; ++ res = DUMMY_REP; ++ prob = probs + IsRepG0 + state; ++ IF_BIT_0_CHECK(prob) ++ { ++ UPDATE_0_CHECK; ++ prob = probs + IsRep0Long + (state << kNumPosBitsMax) + posState; ++ IF_BIT_0_CHECK(prob) ++ { ++ UPDATE_0_CHECK; ++ NORMALIZE_CHECK; ++ return DUMMY_REP; ++ } ++ else ++ { ++ UPDATE_1_CHECK; ++ } ++ } ++ else ++ { ++ UPDATE_1_CHECK; ++ prob = probs + IsRepG1 + state; ++ IF_BIT_0_CHECK(prob) ++ { ++ UPDATE_0_CHECK; ++ } ++ else ++ { ++ UPDATE_1_CHECK; ++ prob = probs + IsRepG2 + state; ++ IF_BIT_0_CHECK(prob) ++ { ++ UPDATE_0_CHECK; ++ } ++ else ++ { ++ UPDATE_1_CHECK; ++ } ++ } ++ } ++ state = kNumStates; ++ prob = probs + RepLenCoder; ++ } ++ { ++ unsigned limit, offset; ++ CLzmaProb *probLen = prob + LenChoice; ++ IF_BIT_0_CHECK(probLen) ++ { ++ UPDATE_0_CHECK; ++ probLen = prob + LenLow + (posState << kLenNumLowBits); ++ offset = 0; ++ limit = 1 << kLenNumLowBits; ++ } ++ else ++ { ++ UPDATE_1_CHECK; ++ probLen = prob + LenChoice2; ++ IF_BIT_0_CHECK(probLen) ++ { ++ UPDATE_0_CHECK; ++ probLen = prob + LenMid + (posState << kLenNumMidBits); ++ offset = kLenNumLowSymbols; ++ limit = 1 << kLenNumMidBits; ++ } ++ else ++ { ++ UPDATE_1_CHECK; ++ probLen = prob + LenHigh; ++ offset = kLenNumLowSymbols + kLenNumMidSymbols; ++ limit = 1 << kLenNumHighBits; ++ } ++ } ++ TREE_DECODE_CHECK(probLen, limit, len); ++ len += offset; ++ } ++ ++ if (state < 4) ++ { ++ unsigned posSlot; ++ prob = probs + PosSlot + ++ ((len < kNumLenToPosStates ? len : kNumLenToPosStates - 1) << ++ kNumPosSlotBits); ++ TREE_DECODE_CHECK(prob, 1 << kNumPosSlotBits, posSlot); ++ if (posSlot >= kStartPosModelIndex) ++ { ++ int numDirectBits = ((posSlot >> 1) - 1); ++ ++ /* if (bufLimit - buf >= 8) return DUMMY_MATCH; */ ++ ++ if (posSlot < kEndPosModelIndex) ++ { ++ prob = probs + SpecPos + ((2 | (posSlot & 1)) << numDirectBits) - posSlot - 1; ++ } ++ else ++ { ++ numDirectBits -= kNumAlignBits; ++ do ++ { ++ NORMALIZE_CHECK ++ range >>= 1; ++ code -= range & (((code - range) >> 31) - 1); ++ /* if (code >= range) code -= range; */ ++ } ++ while (--numDirectBits != 0); ++ prob = probs + Align; ++ numDirectBits = kNumAlignBits; ++ } ++ { ++ unsigned i = 1; ++ do ++ { ++ GET_BIT_CHECK(prob + i, i); ++ } ++ while (--numDirectBits != 0); ++ } ++ } ++ } ++ } ++ } ++ NORMALIZE_CHECK; ++ return res; ++} ++ ++ ++static void LzmaDec_InitRc(CLzmaDec *p, const Byte *data) ++{ ++ p->code = ((UInt32)data[1] << 24) | ((UInt32)data[2] << 16) | ((UInt32)data[3] << 8) | ((UInt32)data[4]); ++ p->range = 0xFFFFFFFF; ++ p->needFlush = 0; ++} ++ ++void LzmaDec_InitDicAndState(CLzmaDec *p, Bool initDic, Bool initState) ++{ ++ p->needFlush = 1; ++ p->remainLen = 0; ++ p->tempBufSize = 0; ++ ++ if (initDic) ++ { ++ p->processedPos = 0; ++ p->checkDicSize = 0; ++ p->needInitState = 1; ++ } ++ if (initState) ++ p->needInitState = 1; ++} ++ ++void LzmaDec_Init(CLzmaDec *p) ++{ ++ p->dicPos = 0; ++ LzmaDec_InitDicAndState(p, True, True); ++} ++ ++static void LzmaDec_InitStateReal(CLzmaDec *p) ++{ ++ UInt32 numProbs = Literal + ((UInt32)LZMA_LIT_SIZE << (p->prop.lc + p->prop.lp)); ++ UInt32 i; ++ CLzmaProb *probs = p->probs; ++ for (i = 0; i < numProbs; i++) ++ probs[i] = kBitModelTotal >> 1; ++ p->reps[0] = p->reps[1] = p->reps[2] = p->reps[3] = 1; ++ p->state = 0; ++ p->needInitState = 0; ++} ++ ++SRes LzmaDec_DecodeToDic(CLzmaDec *p, SizeT dicLimit, const Byte *src, SizeT *srcLen, ++ ELzmaFinishMode finishMode, ELzmaStatus *status) ++{ ++ SizeT inSize = *srcLen; ++ (*srcLen) = 0; ++ LzmaDec_WriteRem(p, dicLimit); ++ ++ *status = LZMA_STATUS_NOT_SPECIFIED; ++ ++ while (p->remainLen != kMatchSpecLenStart) ++ { ++ int checkEndMarkNow; ++ ++ if (p->needFlush != 0) ++ { ++ for (; inSize > 0 && p->tempBufSize < RC_INIT_SIZE; (*srcLen)++, inSize--) ++ p->tempBuf[p->tempBufSize++] = *src++; ++ if (p->tempBufSize < RC_INIT_SIZE) ++ { ++ *status = LZMA_STATUS_NEEDS_MORE_INPUT; ++ return SZ_OK; ++ } ++ if (p->tempBuf[0] != 0) ++ return SZ_ERROR_DATA; ++ ++ LzmaDec_InitRc(p, p->tempBuf); ++ p->tempBufSize = 0; ++ } ++ ++ checkEndMarkNow = 0; ++ if (p->dicPos >= dicLimit) ++ { ++ if (p->remainLen == 0 && p->code == 0) ++ { ++ *status = LZMA_STATUS_MAYBE_FINISHED_WITHOUT_MARK; ++ return SZ_OK; ++ } ++ if (finishMode == LZMA_FINISH_ANY) ++ { ++ *status = LZMA_STATUS_NOT_FINISHED; ++ return SZ_OK; ++ } ++ if (p->remainLen != 0) ++ { ++ *status = LZMA_STATUS_NOT_FINISHED; ++ return SZ_ERROR_DATA; ++ } ++ checkEndMarkNow = 1; ++ } ++ ++ if (p->needInitState) ++ LzmaDec_InitStateReal(p); ++ ++ if (p->tempBufSize == 0) ++ { ++ SizeT processed; ++ const Byte *bufLimit; ++ if (inSize < LZMA_REQUIRED_INPUT_MAX || checkEndMarkNow) ++ { ++ int dummyRes = LzmaDec_TryDummy(p, src, inSize); ++ if (dummyRes == DUMMY_ERROR) ++ { ++ memcpy(p->tempBuf, src, inSize); ++ p->tempBufSize = (unsigned)inSize; ++ (*srcLen) += inSize; ++ *status = LZMA_STATUS_NEEDS_MORE_INPUT; ++ return SZ_OK; ++ } ++ if (checkEndMarkNow && dummyRes != DUMMY_MATCH) ++ { ++ *status = LZMA_STATUS_NOT_FINISHED; ++ return SZ_ERROR_DATA; ++ } ++ bufLimit = src; ++ } ++ else ++ bufLimit = src + inSize - LZMA_REQUIRED_INPUT_MAX; ++ p->buf = src; ++ if (LzmaDec_DecodeReal2(p, dicLimit, bufLimit) != 0) ++ return SZ_ERROR_DATA; ++ processed = (SizeT)(p->buf - src); ++ (*srcLen) += processed; ++ src += processed; ++ inSize -= processed; ++ } ++ else ++ { ++ unsigned rem = p->tempBufSize, lookAhead = 0; ++ while (rem < LZMA_REQUIRED_INPUT_MAX && lookAhead < inSize) ++ p->tempBuf[rem++] = src[lookAhead++]; ++ p->tempBufSize = rem; ++ if (rem < LZMA_REQUIRED_INPUT_MAX || checkEndMarkNow) ++ { ++ int dummyRes = LzmaDec_TryDummy(p, p->tempBuf, rem); ++ if (dummyRes == DUMMY_ERROR) ++ { ++ (*srcLen) += lookAhead; ++ *status = LZMA_STATUS_NEEDS_MORE_INPUT; ++ return SZ_OK; ++ } ++ if (checkEndMarkNow && dummyRes != DUMMY_MATCH) ++ { ++ *status = LZMA_STATUS_NOT_FINISHED; ++ return SZ_ERROR_DATA; ++ } ++ } ++ p->buf = p->tempBuf; ++ if (LzmaDec_DecodeReal2(p, dicLimit, p->buf) != 0) ++ return SZ_ERROR_DATA; ++ lookAhead -= (rem - (unsigned)(p->buf - p->tempBuf)); ++ (*srcLen) += lookAhead; ++ src += lookAhead; ++ inSize -= lookAhead; ++ p->tempBufSize = 0; ++ } ++ } ++ if (p->code == 0) ++ *status = LZMA_STATUS_FINISHED_WITH_MARK; ++ return (p->code == 0) ? SZ_OK : SZ_ERROR_DATA; ++} ++ ++SRes LzmaDec_DecodeToBuf(CLzmaDec *p, Byte *dest, SizeT *destLen, const Byte *src, SizeT *srcLen, ELzmaFinishMode finishMode, ELzmaStatus *status) ++{ ++ SizeT outSize = *destLen; ++ SizeT inSize = *srcLen; ++ *srcLen = *destLen = 0; ++ for (;;) ++ { ++ SizeT inSizeCur = inSize, outSizeCur, dicPos; ++ ELzmaFinishMode curFinishMode; ++ SRes res; ++ if (p->dicPos == p->dicBufSize) ++ p->dicPos = 0; ++ dicPos = p->dicPos; ++ if (outSize > p->dicBufSize - dicPos) ++ { ++ outSizeCur = p->dicBufSize; ++ curFinishMode = LZMA_FINISH_ANY; ++ } ++ else ++ { ++ outSizeCur = dicPos + outSize; ++ curFinishMode = finishMode; ++ } ++ ++ res = LzmaDec_DecodeToDic(p, outSizeCur, src, &inSizeCur, curFinishMode, status); ++ src += inSizeCur; ++ inSize -= inSizeCur; ++ *srcLen += inSizeCur; ++ outSizeCur = p->dicPos - dicPos; ++ memcpy(dest, p->dic + dicPos, outSizeCur); ++ dest += outSizeCur; ++ outSize -= outSizeCur; ++ *destLen += outSizeCur; ++ if (res != 0) ++ return res; ++ if (outSizeCur == 0 || outSize == 0) ++ return SZ_OK; ++ } ++} ++ ++void LzmaDec_FreeProbs(CLzmaDec *p, ISzAlloc *alloc) ++{ ++ alloc->Free(alloc, p->probs); ++ p->probs = 0; ++} ++ ++static void LzmaDec_FreeDict(CLzmaDec *p, ISzAlloc *alloc) ++{ ++ alloc->Free(alloc, p->dic); ++ p->dic = 0; ++} ++ ++void LzmaDec_Free(CLzmaDec *p, ISzAlloc *alloc) ++{ ++ LzmaDec_FreeProbs(p, alloc); ++ LzmaDec_FreeDict(p, alloc); ++} ++ ++SRes LzmaProps_Decode(CLzmaProps *p, const Byte *data, unsigned size) ++{ ++ UInt32 dicSize; ++ Byte d; ++ ++ if (size < LZMA_PROPS_SIZE) ++ return SZ_ERROR_UNSUPPORTED; ++ else ++ dicSize = data[1] | ((UInt32)data[2] << 8) | ((UInt32)data[3] << 16) | ((UInt32)data[4] << 24); ++ ++ if (dicSize < LZMA_DIC_MIN) ++ dicSize = LZMA_DIC_MIN; ++ p->dicSize = dicSize; ++ ++ d = data[0]; ++ if (d >= (9 * 5 * 5)) ++ return SZ_ERROR_UNSUPPORTED; ++ ++ p->lc = d % 9; ++ d /= 9; ++ p->pb = d / 5; ++ p->lp = d % 5; ++ ++ return SZ_OK; ++} ++ ++static SRes LzmaDec_AllocateProbs2(CLzmaDec *p, const CLzmaProps *propNew, ISzAlloc *alloc) ++{ ++ UInt32 numProbs = LzmaProps_GetNumProbs(propNew); ++ if (p->probs == 0 || numProbs != p->numProbs) ++ { ++ LzmaDec_FreeProbs(p, alloc); ++ p->probs = (CLzmaProb *)alloc->Alloc(alloc, numProbs * sizeof(CLzmaProb)); ++ p->numProbs = numProbs; ++ if (p->probs == 0) ++ return SZ_ERROR_MEM; ++ } ++ return SZ_OK; ++} ++ ++SRes LzmaDec_AllocateProbs(CLzmaDec *p, const Byte *props, unsigned propsSize, ISzAlloc *alloc) ++{ ++ CLzmaProps propNew; ++ RINOK(LzmaProps_Decode(&propNew, props, propsSize)); ++ RINOK(LzmaDec_AllocateProbs2(p, &propNew, alloc)); ++ p->prop = propNew; ++ return SZ_OK; ++} ++ ++SRes LzmaDec_Allocate(CLzmaDec *p, const Byte *props, unsigned propsSize, ISzAlloc *alloc) ++{ ++ CLzmaProps propNew; ++ SizeT dicBufSize; ++ RINOK(LzmaProps_Decode(&propNew, props, propsSize)); ++ RINOK(LzmaDec_AllocateProbs2(p, &propNew, alloc)); ++ dicBufSize = propNew.dicSize; ++ if (p->dic == 0 || dicBufSize != p->dicBufSize) ++ { ++ LzmaDec_FreeDict(p, alloc); ++ p->dic = (Byte *)alloc->Alloc(alloc, dicBufSize); ++ if (p->dic == 0) ++ { ++ LzmaDec_FreeProbs(p, alloc); ++ return SZ_ERROR_MEM; ++ } ++ } ++ p->dicBufSize = dicBufSize; ++ p->prop = propNew; ++ return SZ_OK; ++} ++ ++SRes LzmaDecode(Byte *dest, SizeT *destLen, const Byte *src, SizeT *srcLen, ++ const Byte *propData, unsigned propSize, ELzmaFinishMode finishMode, ++ ELzmaStatus *status, ISzAlloc *alloc) ++{ ++ CLzmaDec p; ++ SRes res; ++ SizeT inSize = *srcLen; ++ SizeT outSize = *destLen; ++ *srcLen = *destLen = 0; ++ if (inSize < RC_INIT_SIZE) ++ return SZ_ERROR_INPUT_EOF; ++ ++ LzmaDec_Construct(&p); ++ res = LzmaDec_AllocateProbs(&p, propData, propSize, alloc); ++ if (res != 0) ++ return res; ++ p.dic = dest; ++ p.dicBufSize = outSize; ++ ++ LzmaDec_Init(&p); ++ ++ *srcLen = inSize; ++ res = LzmaDec_DecodeToDic(&p, outSize, src, srcLen, finishMode, status); ++ ++ if (res == SZ_OK && *status == LZMA_STATUS_NEEDS_MORE_INPUT) ++ res = SZ_ERROR_INPUT_EOF; ++ ++ (*destLen) = p.dicPos; ++ LzmaDec_FreeProbs(&p, alloc); ++ return res; ++} +--- /dev/null ++++ b/lib/lzma/LzmaEnc.c +@@ -0,0 +1,2271 @@ ++/* LzmaEnc.c -- LZMA Encoder ++2009-11-24 : Igor Pavlov : Public domain */ ++ ++#include ++ ++/* #define SHOW_STAT */ ++/* #define SHOW_STAT2 */ ++ ++#if defined(SHOW_STAT) || defined(SHOW_STAT2) ++#include ++#endif ++ ++#include "LzmaEnc.h" ++ ++/* disable MT */ ++#define _7ZIP_ST ++ ++#include "LzFind.h" ++#ifndef _7ZIP_ST ++#include "LzFindMt.h" ++#endif ++ ++#ifdef SHOW_STAT ++static int ttt = 0; ++#endif ++ ++#define kBlockSizeMax ((1 << LZMA_NUM_BLOCK_SIZE_BITS) - 1) ++ ++#define kBlockSize (9 << 10) ++#define kUnpackBlockSize (1 << 18) ++#define kMatchArraySize (1 << 21) ++#define kMatchRecordMaxSize ((LZMA_MATCH_LEN_MAX * 2 + 3) * LZMA_MATCH_LEN_MAX) ++ ++#define kNumMaxDirectBits (31) ++ ++#define kNumTopBits 24 ++#define kTopValue ((UInt32)1 << kNumTopBits) ++ ++#define kNumBitModelTotalBits 11 ++#define kBitModelTotal (1 << kNumBitModelTotalBits) ++#define kNumMoveBits 5 ++#define kProbInitValue (kBitModelTotal >> 1) ++ ++#define kNumMoveReducingBits 4 ++#define kNumBitPriceShiftBits 4 ++#define kBitPrice (1 << kNumBitPriceShiftBits) ++ ++void LzmaEncProps_Init(CLzmaEncProps *p) ++{ ++ p->level = 5; ++ p->dictSize = p->mc = 0; ++ p->lc = p->lp = p->pb = p->algo = p->fb = p->btMode = p->numHashBytes = p->numThreads = -1; ++ p->writeEndMark = 0; ++} ++ ++void LzmaEncProps_Normalize(CLzmaEncProps *p) ++{ ++ int level = p->level; ++ if (level < 0) level = 5; ++ p->level = level; ++ if (p->dictSize == 0) p->dictSize = (level <= 5 ? (1 << (level * 2 + 14)) : (level == 6 ? (1 << 25) : (1 << 26))); ++ if (p->lc < 0) p->lc = 3; ++ if (p->lp < 0) p->lp = 0; ++ if (p->pb < 0) p->pb = 2; ++ if (p->algo < 0) p->algo = (level < 5 ? 0 : 1); ++ if (p->fb < 0) p->fb = (level < 7 ? 32 : 64); ++ if (p->btMode < 0) p->btMode = (p->algo == 0 ? 0 : 1); ++ if (p->numHashBytes < 0) p->numHashBytes = 4; ++ if (p->mc == 0) p->mc = (16 + (p->fb >> 1)) >> (p->btMode ? 0 : 1); ++ if (p->numThreads < 0) ++ p->numThreads = ++ #ifndef _7ZIP_ST ++ ((p->btMode && p->algo) ? 2 : 1); ++ #else ++ 1; ++ #endif ++} ++ ++UInt32 LzmaEncProps_GetDictSize(const CLzmaEncProps *props2) ++{ ++ CLzmaEncProps props = *props2; ++ LzmaEncProps_Normalize(&props); ++ return props.dictSize; ++} ++ ++/* #define LZMA_LOG_BSR */ ++/* Define it for Intel's CPU */ ++ ++ ++#ifdef LZMA_LOG_BSR ++ ++#define kDicLogSizeMaxCompress 30 ++ ++#define BSR2_RET(pos, res) { unsigned long i; _BitScanReverse(&i, (pos)); res = (i + i) + ((pos >> (i - 1)) & 1); } ++ ++UInt32 GetPosSlot1(UInt32 pos) ++{ ++ UInt32 res; ++ BSR2_RET(pos, res); ++ return res; ++} ++#define GetPosSlot2(pos, res) { BSR2_RET(pos, res); } ++#define GetPosSlot(pos, res) { if (pos < 2) res = pos; else BSR2_RET(pos, res); } ++ ++#else ++ ++#define kNumLogBits (9 + (int)sizeof(size_t) / 2) ++#define kDicLogSizeMaxCompress ((kNumLogBits - 1) * 2 + 7) ++ ++void LzmaEnc_FastPosInit(Byte *g_FastPos) ++{ ++ int c = 2, slotFast; ++ g_FastPos[0] = 0; ++ g_FastPos[1] = 1; ++ ++ for (slotFast = 2; slotFast < kNumLogBits * 2; slotFast++) ++ { ++ UInt32 k = (1 << ((slotFast >> 1) - 1)); ++ UInt32 j; ++ for (j = 0; j < k; j++, c++) ++ g_FastPos[c] = (Byte)slotFast; ++ } ++} ++ ++#define BSR2_RET(pos, res) { UInt32 i = 6 + ((kNumLogBits - 1) & \ ++ (0 - (((((UInt32)1 << (kNumLogBits + 6)) - 1) - pos) >> 31))); \ ++ res = p->g_FastPos[pos >> i] + (i * 2); } ++/* ++#define BSR2_RET(pos, res) { res = (pos < (1 << (kNumLogBits + 6))) ? \ ++ p->g_FastPos[pos >> 6] + 12 : \ ++ p->g_FastPos[pos >> (6 + kNumLogBits - 1)] + (6 + (kNumLogBits - 1)) * 2; } ++*/ ++ ++#define GetPosSlot1(pos) p->g_FastPos[pos] ++#define GetPosSlot2(pos, res) { BSR2_RET(pos, res); } ++#define GetPosSlot(pos, res) { if (pos < kNumFullDistances) res = p->g_FastPos[pos]; else BSR2_RET(pos, res); } ++ ++#endif ++ ++ ++#define LZMA_NUM_REPS 4 ++ ++typedef unsigned CState; ++ ++typedef struct ++{ ++ UInt32 price; ++ ++ CState state; ++ int prev1IsChar; ++ int prev2; ++ ++ UInt32 posPrev2; ++ UInt32 backPrev2; ++ ++ UInt32 posPrev; ++ UInt32 backPrev; ++ UInt32 backs[LZMA_NUM_REPS]; ++} COptimal; ++ ++#define kNumOpts (1 << 12) ++ ++#define kNumLenToPosStates 4 ++#define kNumPosSlotBits 6 ++#define kDicLogSizeMin 0 ++#define kDicLogSizeMax 32 ++#define kDistTableSizeMax (kDicLogSizeMax * 2) ++ ++ ++#define kNumAlignBits 4 ++#define kAlignTableSize (1 << kNumAlignBits) ++#define kAlignMask (kAlignTableSize - 1) ++ ++#define kStartPosModelIndex 4 ++#define kEndPosModelIndex 14 ++#define kNumPosModels (kEndPosModelIndex - kStartPosModelIndex) ++ ++#define kNumFullDistances (1 << (kEndPosModelIndex >> 1)) ++ ++#ifdef _LZMA_PROB32 ++#define CLzmaProb UInt32 ++#else ++#define CLzmaProb UInt16 ++#endif ++ ++#define LZMA_PB_MAX 4 ++#define LZMA_LC_MAX 8 ++#define LZMA_LP_MAX 4 ++ ++#define LZMA_NUM_PB_STATES_MAX (1 << LZMA_PB_MAX) ++ ++ ++#define kLenNumLowBits 3 ++#define kLenNumLowSymbols (1 << kLenNumLowBits) ++#define kLenNumMidBits 3 ++#define kLenNumMidSymbols (1 << kLenNumMidBits) ++#define kLenNumHighBits 8 ++#define kLenNumHighSymbols (1 << kLenNumHighBits) ++ ++#define kLenNumSymbolsTotal (kLenNumLowSymbols + kLenNumMidSymbols + kLenNumHighSymbols) ++ ++#define LZMA_MATCH_LEN_MIN 2 ++#define LZMA_MATCH_LEN_MAX (LZMA_MATCH_LEN_MIN + kLenNumSymbolsTotal - 1) ++ ++#define kNumStates 12 ++ ++typedef struct ++{ ++ CLzmaProb choice; ++ CLzmaProb choice2; ++ CLzmaProb low[LZMA_NUM_PB_STATES_MAX << kLenNumLowBits]; ++ CLzmaProb mid[LZMA_NUM_PB_STATES_MAX << kLenNumMidBits]; ++ CLzmaProb high[kLenNumHighSymbols]; ++} CLenEnc; ++ ++typedef struct ++{ ++ CLenEnc p; ++ UInt32 prices[LZMA_NUM_PB_STATES_MAX][kLenNumSymbolsTotal]; ++ UInt32 tableSize; ++ UInt32 counters[LZMA_NUM_PB_STATES_MAX]; ++} CLenPriceEnc; ++ ++typedef struct ++{ ++ UInt32 range; ++ Byte cache; ++ UInt64 low; ++ UInt64 cacheSize; ++ Byte *buf; ++ Byte *bufLim; ++ Byte *bufBase; ++ ISeqOutStream *outStream; ++ UInt64 processed; ++ SRes res; ++} CRangeEnc; ++ ++typedef struct ++{ ++ CLzmaProb *litProbs; ++ ++ CLzmaProb isMatch[kNumStates][LZMA_NUM_PB_STATES_MAX]; ++ CLzmaProb isRep[kNumStates]; ++ CLzmaProb isRepG0[kNumStates]; ++ CLzmaProb isRepG1[kNumStates]; ++ CLzmaProb isRepG2[kNumStates]; ++ CLzmaProb isRep0Long[kNumStates][LZMA_NUM_PB_STATES_MAX]; ++ ++ CLzmaProb posSlotEncoder[kNumLenToPosStates][1 << kNumPosSlotBits]; ++ CLzmaProb posEncoders[kNumFullDistances - kEndPosModelIndex]; ++ CLzmaProb posAlignEncoder[1 << kNumAlignBits]; ++ ++ CLenPriceEnc lenEnc; ++ CLenPriceEnc repLenEnc; ++ ++ UInt32 reps[LZMA_NUM_REPS]; ++ UInt32 state; ++} CSaveState; ++ ++typedef struct ++{ ++ IMatchFinder matchFinder; ++ void *matchFinderObj; ++ ++ #ifndef _7ZIP_ST ++ Bool mtMode; ++ CMatchFinderMt matchFinderMt; ++ #endif ++ ++ CMatchFinder matchFinderBase; ++ ++ #ifndef _7ZIP_ST ++ Byte pad[128]; ++ #endif ++ ++ UInt32 optimumEndIndex; ++ UInt32 optimumCurrentIndex; ++ ++ UInt32 longestMatchLength; ++ UInt32 numPairs; ++ UInt32 numAvail; ++ COptimal opt[kNumOpts]; ++ ++ #ifndef LZMA_LOG_BSR ++ Byte g_FastPos[1 << kNumLogBits]; ++ #endif ++ ++ UInt32 ProbPrices[kBitModelTotal >> kNumMoveReducingBits]; ++ UInt32 matches[LZMA_MATCH_LEN_MAX * 2 + 2 + 1]; ++ UInt32 numFastBytes; ++ UInt32 additionalOffset; ++ UInt32 reps[LZMA_NUM_REPS]; ++ UInt32 state; ++ ++ UInt32 posSlotPrices[kNumLenToPosStates][kDistTableSizeMax]; ++ UInt32 distancesPrices[kNumLenToPosStates][kNumFullDistances]; ++ UInt32 alignPrices[kAlignTableSize]; ++ UInt32 alignPriceCount; ++ ++ UInt32 distTableSize; ++ ++ unsigned lc, lp, pb; ++ unsigned lpMask, pbMask; ++ ++ CLzmaProb *litProbs; ++ ++ CLzmaProb isMatch[kNumStates][LZMA_NUM_PB_STATES_MAX]; ++ CLzmaProb isRep[kNumStates]; ++ CLzmaProb isRepG0[kNumStates]; ++ CLzmaProb isRepG1[kNumStates]; ++ CLzmaProb isRepG2[kNumStates]; ++ CLzmaProb isRep0Long[kNumStates][LZMA_NUM_PB_STATES_MAX]; ++ ++ CLzmaProb posSlotEncoder[kNumLenToPosStates][1 << kNumPosSlotBits]; ++ CLzmaProb posEncoders[kNumFullDistances - kEndPosModelIndex]; ++ CLzmaProb posAlignEncoder[1 << kNumAlignBits]; ++ ++ CLenPriceEnc lenEnc; ++ CLenPriceEnc repLenEnc; ++ ++ unsigned lclp; ++ ++ Bool fastMode; ++ ++ CRangeEnc rc; ++ ++ Bool writeEndMark; ++ UInt64 nowPos64; ++ UInt32 matchPriceCount; ++ Bool finished; ++ Bool multiThread; ++ ++ SRes result; ++ UInt32 dictSize; ++ UInt32 matchFinderCycles; ++ ++ int needInit; ++ ++ CSaveState saveState; ++} CLzmaEnc; ++ ++void LzmaEnc_SaveState(CLzmaEncHandle pp) ++{ ++ CLzmaEnc *p = (CLzmaEnc *)pp; ++ CSaveState *dest = &p->saveState; ++ int i; ++ dest->lenEnc = p->lenEnc; ++ dest->repLenEnc = p->repLenEnc; ++ dest->state = p->state; ++ ++ for (i = 0; i < kNumStates; i++) ++ { ++ memcpy(dest->isMatch[i], p->isMatch[i], sizeof(p->isMatch[i])); ++ memcpy(dest->isRep0Long[i], p->isRep0Long[i], sizeof(p->isRep0Long[i])); ++ } ++ for (i = 0; i < kNumLenToPosStates; i++) ++ memcpy(dest->posSlotEncoder[i], p->posSlotEncoder[i], sizeof(p->posSlotEncoder[i])); ++ memcpy(dest->isRep, p->isRep, sizeof(p->isRep)); ++ memcpy(dest->isRepG0, p->isRepG0, sizeof(p->isRepG0)); ++ memcpy(dest->isRepG1, p->isRepG1, sizeof(p->isRepG1)); ++ memcpy(dest->isRepG2, p->isRepG2, sizeof(p->isRepG2)); ++ memcpy(dest->posEncoders, p->posEncoders, sizeof(p->posEncoders)); ++ memcpy(dest->posAlignEncoder, p->posAlignEncoder, sizeof(p->posAlignEncoder)); ++ memcpy(dest->reps, p->reps, sizeof(p->reps)); ++ memcpy(dest->litProbs, p->litProbs, (0x300 << p->lclp) * sizeof(CLzmaProb)); ++} ++ ++void LzmaEnc_RestoreState(CLzmaEncHandle pp) ++{ ++ CLzmaEnc *dest = (CLzmaEnc *)pp; ++ const CSaveState *p = &dest->saveState; ++ int i; ++ dest->lenEnc = p->lenEnc; ++ dest->repLenEnc = p->repLenEnc; ++ dest->state = p->state; ++ ++ for (i = 0; i < kNumStates; i++) ++ { ++ memcpy(dest->isMatch[i], p->isMatch[i], sizeof(p->isMatch[i])); ++ memcpy(dest->isRep0Long[i], p->isRep0Long[i], sizeof(p->isRep0Long[i])); ++ } ++ for (i = 0; i < kNumLenToPosStates; i++) ++ memcpy(dest->posSlotEncoder[i], p->posSlotEncoder[i], sizeof(p->posSlotEncoder[i])); ++ memcpy(dest->isRep, p->isRep, sizeof(p->isRep)); ++ memcpy(dest->isRepG0, p->isRepG0, sizeof(p->isRepG0)); ++ memcpy(dest->isRepG1, p->isRepG1, sizeof(p->isRepG1)); ++ memcpy(dest->isRepG2, p->isRepG2, sizeof(p->isRepG2)); ++ memcpy(dest->posEncoders, p->posEncoders, sizeof(p->posEncoders)); ++ memcpy(dest->posAlignEncoder, p->posAlignEncoder, sizeof(p->posAlignEncoder)); ++ memcpy(dest->reps, p->reps, sizeof(p->reps)); ++ memcpy(dest->litProbs, p->litProbs, (0x300 << dest->lclp) * sizeof(CLzmaProb)); ++} ++ ++SRes LzmaEnc_SetProps(CLzmaEncHandle pp, const CLzmaEncProps *props2) ++{ ++ CLzmaEnc *p = (CLzmaEnc *)pp; ++ CLzmaEncProps props = *props2; ++ LzmaEncProps_Normalize(&props); ++ ++ if (props.lc > LZMA_LC_MAX || props.lp > LZMA_LP_MAX || props.pb > LZMA_PB_MAX || ++ props.dictSize > (1 << kDicLogSizeMaxCompress) || props.dictSize > (1 << 30)) ++ return SZ_ERROR_PARAM; ++ p->dictSize = props.dictSize; ++ p->matchFinderCycles = props.mc; ++ { ++ unsigned fb = props.fb; ++ if (fb < 5) ++ fb = 5; ++ if (fb > LZMA_MATCH_LEN_MAX) ++ fb = LZMA_MATCH_LEN_MAX; ++ p->numFastBytes = fb; ++ } ++ p->lc = props.lc; ++ p->lp = props.lp; ++ p->pb = props.pb; ++ p->fastMode = (props.algo == 0); ++ p->matchFinderBase.btMode = props.btMode; ++ { ++ UInt32 numHashBytes = 4; ++ if (props.btMode) ++ { ++ if (props.numHashBytes < 2) ++ numHashBytes = 2; ++ else if (props.numHashBytes < 4) ++ numHashBytes = props.numHashBytes; ++ } ++ p->matchFinderBase.numHashBytes = numHashBytes; ++ } ++ ++ p->matchFinderBase.cutValue = props.mc; ++ ++ p->writeEndMark = props.writeEndMark; ++ ++ #ifndef _7ZIP_ST ++ /* ++ if (newMultiThread != _multiThread) ++ { ++ ReleaseMatchFinder(); ++ _multiThread = newMultiThread; ++ } ++ */ ++ p->multiThread = (props.numThreads > 1); ++ #endif ++ ++ return SZ_OK; ++} ++ ++static const int kLiteralNextStates[kNumStates] = {0, 0, 0, 0, 1, 2, 3, 4, 5, 6, 4, 5}; ++static const int kMatchNextStates[kNumStates] = {7, 7, 7, 7, 7, 7, 7, 10, 10, 10, 10, 10}; ++static const int kRepNextStates[kNumStates] = {8, 8, 8, 8, 8, 8, 8, 11, 11, 11, 11, 11}; ++static const int kShortRepNextStates[kNumStates]= {9, 9, 9, 9, 9, 9, 9, 11, 11, 11, 11, 11}; ++ ++#define IsCharState(s) ((s) < 7) ++ ++#define GetLenToPosState(len) (((len) < kNumLenToPosStates + 1) ? (len) - 2 : kNumLenToPosStates - 1) ++ ++#define kInfinityPrice (1 << 30) ++ ++static void RangeEnc_Construct(CRangeEnc *p) ++{ ++ p->outStream = 0; ++ p->bufBase = 0; ++} ++ ++#define RangeEnc_GetProcessed(p) ((p)->processed + ((p)->buf - (p)->bufBase) + (p)->cacheSize) ++ ++#define RC_BUF_SIZE (1 << 16) ++static int RangeEnc_Alloc(CRangeEnc *p, ISzAlloc *alloc) ++{ ++ if (p->bufBase == 0) ++ { ++ p->bufBase = (Byte *)alloc->Alloc(alloc, RC_BUF_SIZE); ++ if (p->bufBase == 0) ++ return 0; ++ p->bufLim = p->bufBase + RC_BUF_SIZE; ++ } ++ return 1; ++} ++ ++static void RangeEnc_Free(CRangeEnc *p, ISzAlloc *alloc) ++{ ++ alloc->Free(alloc, p->bufBase); ++ p->bufBase = 0; ++} ++ ++static void RangeEnc_Init(CRangeEnc *p) ++{ ++ /* Stream.Init(); */ ++ p->low = 0; ++ p->range = 0xFFFFFFFF; ++ p->cacheSize = 1; ++ p->cache = 0; ++ ++ p->buf = p->bufBase; ++ ++ p->processed = 0; ++ p->res = SZ_OK; ++} ++ ++static void RangeEnc_FlushStream(CRangeEnc *p) ++{ ++ size_t num; ++ if (p->res != SZ_OK) ++ return; ++ num = p->buf - p->bufBase; ++ if (num != p->outStream->Write(p->outStream, p->bufBase, num)) ++ p->res = SZ_ERROR_WRITE; ++ p->processed += num; ++ p->buf = p->bufBase; ++} ++ ++static void MY_FAST_CALL RangeEnc_ShiftLow(CRangeEnc *p) ++{ ++ if ((UInt32)p->low < (UInt32)0xFF000000 || (int)(p->low >> 32) != 0) ++ { ++ Byte temp = p->cache; ++ do ++ { ++ Byte *buf = p->buf; ++ *buf++ = (Byte)(temp + (Byte)(p->low >> 32)); ++ p->buf = buf; ++ if (buf == p->bufLim) ++ RangeEnc_FlushStream(p); ++ temp = 0xFF; ++ } ++ while (--p->cacheSize != 0); ++ p->cache = (Byte)((UInt32)p->low >> 24); ++ } ++ p->cacheSize++; ++ p->low = (UInt32)p->low << 8; ++} ++ ++static void RangeEnc_FlushData(CRangeEnc *p) ++{ ++ int i; ++ for (i = 0; i < 5; i++) ++ RangeEnc_ShiftLow(p); ++} ++ ++static void RangeEnc_EncodeDirectBits(CRangeEnc *p, UInt32 value, int numBits) ++{ ++ do ++ { ++ p->range >>= 1; ++ p->low += p->range & (0 - ((value >> --numBits) & 1)); ++ if (p->range < kTopValue) ++ { ++ p->range <<= 8; ++ RangeEnc_ShiftLow(p); ++ } ++ } ++ while (numBits != 0); ++} ++ ++static void RangeEnc_EncodeBit(CRangeEnc *p, CLzmaProb *prob, UInt32 symbol) ++{ ++ UInt32 ttt = *prob; ++ UInt32 newBound = (p->range >> kNumBitModelTotalBits) * ttt; ++ if (symbol == 0) ++ { ++ p->range = newBound; ++ ttt += (kBitModelTotal - ttt) >> kNumMoveBits; ++ } ++ else ++ { ++ p->low += newBound; ++ p->range -= newBound; ++ ttt -= ttt >> kNumMoveBits; ++ } ++ *prob = (CLzmaProb)ttt; ++ if (p->range < kTopValue) ++ { ++ p->range <<= 8; ++ RangeEnc_ShiftLow(p); ++ } ++} ++ ++static void LitEnc_Encode(CRangeEnc *p, CLzmaProb *probs, UInt32 symbol) ++{ ++ symbol |= 0x100; ++ do ++ { ++ RangeEnc_EncodeBit(p, probs + (symbol >> 8), (symbol >> 7) & 1); ++ symbol <<= 1; ++ } ++ while (symbol < 0x10000); ++} ++ ++static void LitEnc_EncodeMatched(CRangeEnc *p, CLzmaProb *probs, UInt32 symbol, UInt32 matchByte) ++{ ++ UInt32 offs = 0x100; ++ symbol |= 0x100; ++ do ++ { ++ matchByte <<= 1; ++ RangeEnc_EncodeBit(p, probs + (offs + (matchByte & offs) + (symbol >> 8)), (symbol >> 7) & 1); ++ symbol <<= 1; ++ offs &= ~(matchByte ^ symbol); ++ } ++ while (symbol < 0x10000); ++} ++ ++void LzmaEnc_InitPriceTables(UInt32 *ProbPrices) ++{ ++ UInt32 i; ++ for (i = (1 << kNumMoveReducingBits) / 2; i < kBitModelTotal; i += (1 << kNumMoveReducingBits)) ++ { ++ const int kCyclesBits = kNumBitPriceShiftBits; ++ UInt32 w = i; ++ UInt32 bitCount = 0; ++ int j; ++ for (j = 0; j < kCyclesBits; j++) ++ { ++ w = w * w; ++ bitCount <<= 1; ++ while (w >= ((UInt32)1 << 16)) ++ { ++ w >>= 1; ++ bitCount++; ++ } ++ } ++ ProbPrices[i >> kNumMoveReducingBits] = ((kNumBitModelTotalBits << kCyclesBits) - 15 - bitCount); ++ } ++} ++ ++ ++#define GET_PRICE(prob, symbol) \ ++ p->ProbPrices[((prob) ^ (((-(int)(symbol))) & (kBitModelTotal - 1))) >> kNumMoveReducingBits]; ++ ++#define GET_PRICEa(prob, symbol) \ ++ ProbPrices[((prob) ^ ((-((int)(symbol))) & (kBitModelTotal - 1))) >> kNumMoveReducingBits]; ++ ++#define GET_PRICE_0(prob) p->ProbPrices[(prob) >> kNumMoveReducingBits] ++#define GET_PRICE_1(prob) p->ProbPrices[((prob) ^ (kBitModelTotal - 1)) >> kNumMoveReducingBits] ++ ++#define GET_PRICE_0a(prob) ProbPrices[(prob) >> kNumMoveReducingBits] ++#define GET_PRICE_1a(prob) ProbPrices[((prob) ^ (kBitModelTotal - 1)) >> kNumMoveReducingBits] ++ ++static UInt32 LitEnc_GetPrice(const CLzmaProb *probs, UInt32 symbol, UInt32 *ProbPrices) ++{ ++ UInt32 price = 0; ++ symbol |= 0x100; ++ do ++ { ++ price += GET_PRICEa(probs[symbol >> 8], (symbol >> 7) & 1); ++ symbol <<= 1; ++ } ++ while (symbol < 0x10000); ++ return price; ++} ++ ++static UInt32 LitEnc_GetPriceMatched(const CLzmaProb *probs, UInt32 symbol, UInt32 matchByte, UInt32 *ProbPrices) ++{ ++ UInt32 price = 0; ++ UInt32 offs = 0x100; ++ symbol |= 0x100; ++ do ++ { ++ matchByte <<= 1; ++ price += GET_PRICEa(probs[offs + (matchByte & offs) + (symbol >> 8)], (symbol >> 7) & 1); ++ symbol <<= 1; ++ offs &= ~(matchByte ^ symbol); ++ } ++ while (symbol < 0x10000); ++ return price; ++} ++ ++ ++static void RcTree_Encode(CRangeEnc *rc, CLzmaProb *probs, int numBitLevels, UInt32 symbol) ++{ ++ UInt32 m = 1; ++ int i; ++ for (i = numBitLevels; i != 0;) ++ { ++ UInt32 bit; ++ i--; ++ bit = (symbol >> i) & 1; ++ RangeEnc_EncodeBit(rc, probs + m, bit); ++ m = (m << 1) | bit; ++ } ++} ++ ++static void RcTree_ReverseEncode(CRangeEnc *rc, CLzmaProb *probs, int numBitLevels, UInt32 symbol) ++{ ++ UInt32 m = 1; ++ int i; ++ for (i = 0; i < numBitLevels; i++) ++ { ++ UInt32 bit = symbol & 1; ++ RangeEnc_EncodeBit(rc, probs + m, bit); ++ m = (m << 1) | bit; ++ symbol >>= 1; ++ } ++} ++ ++static UInt32 RcTree_GetPrice(const CLzmaProb *probs, int numBitLevels, UInt32 symbol, UInt32 *ProbPrices) ++{ ++ UInt32 price = 0; ++ symbol |= (1 << numBitLevels); ++ while (symbol != 1) ++ { ++ price += GET_PRICEa(probs[symbol >> 1], symbol & 1); ++ symbol >>= 1; ++ } ++ return price; ++} ++ ++static UInt32 RcTree_ReverseGetPrice(const CLzmaProb *probs, int numBitLevels, UInt32 symbol, UInt32 *ProbPrices) ++{ ++ UInt32 price = 0; ++ UInt32 m = 1; ++ int i; ++ for (i = numBitLevels; i != 0; i--) ++ { ++ UInt32 bit = symbol & 1; ++ symbol >>= 1; ++ price += GET_PRICEa(probs[m], bit); ++ m = (m << 1) | bit; ++ } ++ return price; ++} ++ ++ ++static void LenEnc_Init(CLenEnc *p) ++{ ++ unsigned i; ++ p->choice = p->choice2 = kProbInitValue; ++ for (i = 0; i < (LZMA_NUM_PB_STATES_MAX << kLenNumLowBits); i++) ++ p->low[i] = kProbInitValue; ++ for (i = 0; i < (LZMA_NUM_PB_STATES_MAX << kLenNumMidBits); i++) ++ p->mid[i] = kProbInitValue; ++ for (i = 0; i < kLenNumHighSymbols; i++) ++ p->high[i] = kProbInitValue; ++} ++ ++static void LenEnc_Encode(CLenEnc *p, CRangeEnc *rc, UInt32 symbol, UInt32 posState) ++{ ++ if (symbol < kLenNumLowSymbols) ++ { ++ RangeEnc_EncodeBit(rc, &p->choice, 0); ++ RcTree_Encode(rc, p->low + (posState << kLenNumLowBits), kLenNumLowBits, symbol); ++ } ++ else ++ { ++ RangeEnc_EncodeBit(rc, &p->choice, 1); ++ if (symbol < kLenNumLowSymbols + kLenNumMidSymbols) ++ { ++ RangeEnc_EncodeBit(rc, &p->choice2, 0); ++ RcTree_Encode(rc, p->mid + (posState << kLenNumMidBits), kLenNumMidBits, symbol - kLenNumLowSymbols); ++ } ++ else ++ { ++ RangeEnc_EncodeBit(rc, &p->choice2, 1); ++ RcTree_Encode(rc, p->high, kLenNumHighBits, symbol - kLenNumLowSymbols - kLenNumMidSymbols); ++ } ++ } ++} ++ ++static void LenEnc_SetPrices(CLenEnc *p, UInt32 posState, UInt32 numSymbols, UInt32 *prices, UInt32 *ProbPrices) ++{ ++ UInt32 a0 = GET_PRICE_0a(p->choice); ++ UInt32 a1 = GET_PRICE_1a(p->choice); ++ UInt32 b0 = a1 + GET_PRICE_0a(p->choice2); ++ UInt32 b1 = a1 + GET_PRICE_1a(p->choice2); ++ UInt32 i = 0; ++ for (i = 0; i < kLenNumLowSymbols; i++) ++ { ++ if (i >= numSymbols) ++ return; ++ prices[i] = a0 + RcTree_GetPrice(p->low + (posState << kLenNumLowBits), kLenNumLowBits, i, ProbPrices); ++ } ++ for (; i < kLenNumLowSymbols + kLenNumMidSymbols; i++) ++ { ++ if (i >= numSymbols) ++ return; ++ prices[i] = b0 + RcTree_GetPrice(p->mid + (posState << kLenNumMidBits), kLenNumMidBits, i - kLenNumLowSymbols, ProbPrices); ++ } ++ for (; i < numSymbols; i++) ++ prices[i] = b1 + RcTree_GetPrice(p->high, kLenNumHighBits, i - kLenNumLowSymbols - kLenNumMidSymbols, ProbPrices); ++} ++ ++static void MY_FAST_CALL LenPriceEnc_UpdateTable(CLenPriceEnc *p, UInt32 posState, UInt32 *ProbPrices) ++{ ++ LenEnc_SetPrices(&p->p, posState, p->tableSize, p->prices[posState], ProbPrices); ++ p->counters[posState] = p->tableSize; ++} ++ ++static void LenPriceEnc_UpdateTables(CLenPriceEnc *p, UInt32 numPosStates, UInt32 *ProbPrices) ++{ ++ UInt32 posState; ++ for (posState = 0; posState < numPosStates; posState++) ++ LenPriceEnc_UpdateTable(p, posState, ProbPrices); ++} ++ ++static void LenEnc_Encode2(CLenPriceEnc *p, CRangeEnc *rc, UInt32 symbol, UInt32 posState, Bool updatePrice, UInt32 *ProbPrices) ++{ ++ LenEnc_Encode(&p->p, rc, symbol, posState); ++ if (updatePrice) ++ if (--p->counters[posState] == 0) ++ LenPriceEnc_UpdateTable(p, posState, ProbPrices); ++} ++ ++ ++ ++ ++static void MovePos(CLzmaEnc *p, UInt32 num) ++{ ++ #ifdef SHOW_STAT ++ ttt += num; ++ printf("\n MovePos %d", num); ++ #endif ++ if (num != 0) ++ { ++ p->additionalOffset += num; ++ p->matchFinder.Skip(p->matchFinderObj, num); ++ } ++} ++ ++static UInt32 ReadMatchDistances(CLzmaEnc *p, UInt32 *numDistancePairsRes) ++{ ++ UInt32 lenRes = 0, numPairs; ++ p->numAvail = p->matchFinder.GetNumAvailableBytes(p->matchFinderObj); ++ numPairs = p->matchFinder.GetMatches(p->matchFinderObj, p->matches); ++ #ifdef SHOW_STAT ++ printf("\n i = %d numPairs = %d ", ttt, numPairs / 2); ++ ttt++; ++ { ++ UInt32 i; ++ for (i = 0; i < numPairs; i += 2) ++ printf("%2d %6d | ", p->matches[i], p->matches[i + 1]); ++ } ++ #endif ++ if (numPairs > 0) ++ { ++ lenRes = p->matches[numPairs - 2]; ++ if (lenRes == p->numFastBytes) ++ { ++ const Byte *pby = p->matchFinder.GetPointerToCurrentPos(p->matchFinderObj) - 1; ++ UInt32 distance = p->matches[numPairs - 1] + 1; ++ UInt32 numAvail = p->numAvail; ++ if (numAvail > LZMA_MATCH_LEN_MAX) ++ numAvail = LZMA_MATCH_LEN_MAX; ++ { ++ const Byte *pby2 = pby - distance; ++ for (; lenRes < numAvail && pby[lenRes] == pby2[lenRes]; lenRes++); ++ } ++ } ++ } ++ p->additionalOffset++; ++ *numDistancePairsRes = numPairs; ++ return lenRes; ++} ++ ++ ++#define MakeAsChar(p) (p)->backPrev = (UInt32)(-1); (p)->prev1IsChar = False; ++#define MakeAsShortRep(p) (p)->backPrev = 0; (p)->prev1IsChar = False; ++#define IsShortRep(p) ((p)->backPrev == 0) ++ ++static UInt32 GetRepLen1Price(CLzmaEnc *p, UInt32 state, UInt32 posState) ++{ ++ return ++ GET_PRICE_0(p->isRepG0[state]) + ++ GET_PRICE_0(p->isRep0Long[state][posState]); ++} ++ ++static UInt32 GetPureRepPrice(CLzmaEnc *p, UInt32 repIndex, UInt32 state, UInt32 posState) ++{ ++ UInt32 price; ++ if (repIndex == 0) ++ { ++ price = GET_PRICE_0(p->isRepG0[state]); ++ price += GET_PRICE_1(p->isRep0Long[state][posState]); ++ } ++ else ++ { ++ price = GET_PRICE_1(p->isRepG0[state]); ++ if (repIndex == 1) ++ price += GET_PRICE_0(p->isRepG1[state]); ++ else ++ { ++ price += GET_PRICE_1(p->isRepG1[state]); ++ price += GET_PRICE(p->isRepG2[state], repIndex - 2); ++ } ++ } ++ return price; ++} ++ ++static UInt32 GetRepPrice(CLzmaEnc *p, UInt32 repIndex, UInt32 len, UInt32 state, UInt32 posState) ++{ ++ return p->repLenEnc.prices[posState][len - LZMA_MATCH_LEN_MIN] + ++ GetPureRepPrice(p, repIndex, state, posState); ++} ++ ++static UInt32 Backward(CLzmaEnc *p, UInt32 *backRes, UInt32 cur) ++{ ++ UInt32 posMem = p->opt[cur].posPrev; ++ UInt32 backMem = p->opt[cur].backPrev; ++ p->optimumEndIndex = cur; ++ do ++ { ++ if (p->opt[cur].prev1IsChar) ++ { ++ MakeAsChar(&p->opt[posMem]) ++ p->opt[posMem].posPrev = posMem - 1; ++ if (p->opt[cur].prev2) ++ { ++ p->opt[posMem - 1].prev1IsChar = False; ++ p->opt[posMem - 1].posPrev = p->opt[cur].posPrev2; ++ p->opt[posMem - 1].backPrev = p->opt[cur].backPrev2; ++ } ++ } ++ { ++ UInt32 posPrev = posMem; ++ UInt32 backCur = backMem; ++ ++ backMem = p->opt[posPrev].backPrev; ++ posMem = p->opt[posPrev].posPrev; ++ ++ p->opt[posPrev].backPrev = backCur; ++ p->opt[posPrev].posPrev = cur; ++ cur = posPrev; ++ } ++ } ++ while (cur != 0); ++ *backRes = p->opt[0].backPrev; ++ p->optimumCurrentIndex = p->opt[0].posPrev; ++ return p->optimumCurrentIndex; ++} ++ ++#define LIT_PROBS(pos, prevByte) (p->litProbs + ((((pos) & p->lpMask) << p->lc) + ((prevByte) >> (8 - p->lc))) * 0x300) ++ ++static UInt32 GetOptimum(CLzmaEnc *p, UInt32 position, UInt32 *backRes) ++{ ++ UInt32 numAvail, mainLen, numPairs, repMaxIndex, i, posState, lenEnd, len, cur; ++ UInt32 matchPrice, repMatchPrice, normalMatchPrice; ++ UInt32 reps[LZMA_NUM_REPS], repLens[LZMA_NUM_REPS]; ++ UInt32 *matches; ++ const Byte *data; ++ Byte curByte, matchByte; ++ if (p->optimumEndIndex != p->optimumCurrentIndex) ++ { ++ const COptimal *opt = &p->opt[p->optimumCurrentIndex]; ++ UInt32 lenRes = opt->posPrev - p->optimumCurrentIndex; ++ *backRes = opt->backPrev; ++ p->optimumCurrentIndex = opt->posPrev; ++ return lenRes; ++ } ++ p->optimumCurrentIndex = p->optimumEndIndex = 0; ++ ++ if (p->additionalOffset == 0) ++ mainLen = ReadMatchDistances(p, &numPairs); ++ else ++ { ++ mainLen = p->longestMatchLength; ++ numPairs = p->numPairs; ++ } ++ ++ numAvail = p->numAvail; ++ if (numAvail < 2) ++ { ++ *backRes = (UInt32)(-1); ++ return 1; ++ } ++ if (numAvail > LZMA_MATCH_LEN_MAX) ++ numAvail = LZMA_MATCH_LEN_MAX; ++ ++ data = p->matchFinder.GetPointerToCurrentPos(p->matchFinderObj) - 1; ++ repMaxIndex = 0; ++ for (i = 0; i < LZMA_NUM_REPS; i++) ++ { ++ UInt32 lenTest; ++ const Byte *data2; ++ reps[i] = p->reps[i]; ++ data2 = data - (reps[i] + 1); ++ if (data[0] != data2[0] || data[1] != data2[1]) ++ { ++ repLens[i] = 0; ++ continue; ++ } ++ for (lenTest = 2; lenTest < numAvail && data[lenTest] == data2[lenTest]; lenTest++); ++ repLens[i] = lenTest; ++ if (lenTest > repLens[repMaxIndex]) ++ repMaxIndex = i; ++ } ++ if (repLens[repMaxIndex] >= p->numFastBytes) ++ { ++ UInt32 lenRes; ++ *backRes = repMaxIndex; ++ lenRes = repLens[repMaxIndex]; ++ MovePos(p, lenRes - 1); ++ return lenRes; ++ } ++ ++ matches = p->matches; ++ if (mainLen >= p->numFastBytes) ++ { ++ *backRes = matches[numPairs - 1] + LZMA_NUM_REPS; ++ MovePos(p, mainLen - 1); ++ return mainLen; ++ } ++ curByte = *data; ++ matchByte = *(data - (reps[0] + 1)); ++ ++ if (mainLen < 2 && curByte != matchByte && repLens[repMaxIndex] < 2) ++ { ++ *backRes = (UInt32)-1; ++ return 1; ++ } ++ ++ p->opt[0].state = (CState)p->state; ++ ++ posState = (position & p->pbMask); ++ ++ { ++ const CLzmaProb *probs = LIT_PROBS(position, *(data - 1)); ++ p->opt[1].price = GET_PRICE_0(p->isMatch[p->state][posState]) + ++ (!IsCharState(p->state) ? ++ LitEnc_GetPriceMatched(probs, curByte, matchByte, p->ProbPrices) : ++ LitEnc_GetPrice(probs, curByte, p->ProbPrices)); ++ } ++ ++ MakeAsChar(&p->opt[1]); ++ ++ matchPrice = GET_PRICE_1(p->isMatch[p->state][posState]); ++ repMatchPrice = matchPrice + GET_PRICE_1(p->isRep[p->state]); ++ ++ if (matchByte == curByte) ++ { ++ UInt32 shortRepPrice = repMatchPrice + GetRepLen1Price(p, p->state, posState); ++ if (shortRepPrice < p->opt[1].price) ++ { ++ p->opt[1].price = shortRepPrice; ++ MakeAsShortRep(&p->opt[1]); ++ } ++ } ++ lenEnd = ((mainLen >= repLens[repMaxIndex]) ? mainLen : repLens[repMaxIndex]); ++ ++ if (lenEnd < 2) ++ { ++ *backRes = p->opt[1].backPrev; ++ return 1; ++ } ++ ++ p->opt[1].posPrev = 0; ++ for (i = 0; i < LZMA_NUM_REPS; i++) ++ p->opt[0].backs[i] = reps[i]; ++ ++ len = lenEnd; ++ do ++ p->opt[len--].price = kInfinityPrice; ++ while (len >= 2); ++ ++ for (i = 0; i < LZMA_NUM_REPS; i++) ++ { ++ UInt32 repLen = repLens[i]; ++ UInt32 price; ++ if (repLen < 2) ++ continue; ++ price = repMatchPrice + GetPureRepPrice(p, i, p->state, posState); ++ do ++ { ++ UInt32 curAndLenPrice = price + p->repLenEnc.prices[posState][repLen - 2]; ++ COptimal *opt = &p->opt[repLen]; ++ if (curAndLenPrice < opt->price) ++ { ++ opt->price = curAndLenPrice; ++ opt->posPrev = 0; ++ opt->backPrev = i; ++ opt->prev1IsChar = False; ++ } ++ } ++ while (--repLen >= 2); ++ } ++ ++ normalMatchPrice = matchPrice + GET_PRICE_0(p->isRep[p->state]); ++ ++ len = ((repLens[0] >= 2) ? repLens[0] + 1 : 2); ++ if (len <= mainLen) ++ { ++ UInt32 offs = 0; ++ while (len > matches[offs]) ++ offs += 2; ++ for (; ; len++) ++ { ++ COptimal *opt; ++ UInt32 distance = matches[offs + 1]; ++ ++ UInt32 curAndLenPrice = normalMatchPrice + p->lenEnc.prices[posState][len - LZMA_MATCH_LEN_MIN]; ++ UInt32 lenToPosState = GetLenToPosState(len); ++ if (distance < kNumFullDistances) ++ curAndLenPrice += p->distancesPrices[lenToPosState][distance]; ++ else ++ { ++ UInt32 slot; ++ GetPosSlot2(distance, slot); ++ curAndLenPrice += p->alignPrices[distance & kAlignMask] + p->posSlotPrices[lenToPosState][slot]; ++ } ++ opt = &p->opt[len]; ++ if (curAndLenPrice < opt->price) ++ { ++ opt->price = curAndLenPrice; ++ opt->posPrev = 0; ++ opt->backPrev = distance + LZMA_NUM_REPS; ++ opt->prev1IsChar = False; ++ } ++ if (len == matches[offs]) ++ { ++ offs += 2; ++ if (offs == numPairs) ++ break; ++ } ++ } ++ } ++ ++ cur = 0; ++ ++ #ifdef SHOW_STAT2 ++ if (position >= 0) ++ { ++ unsigned i; ++ printf("\n pos = %4X", position); ++ for (i = cur; i <= lenEnd; i++) ++ printf("\nprice[%4X] = %d", position - cur + i, p->opt[i].price); ++ } ++ #endif ++ ++ for (;;) ++ { ++ UInt32 numAvailFull, newLen, numPairs, posPrev, state, posState, startLen; ++ UInt32 curPrice, curAnd1Price, matchPrice, repMatchPrice; ++ Bool nextIsChar; ++ Byte curByte, matchByte; ++ const Byte *data; ++ COptimal *curOpt; ++ COptimal *nextOpt; ++ ++ cur++; ++ if (cur == lenEnd) ++ return Backward(p, backRes, cur); ++ ++ newLen = ReadMatchDistances(p, &numPairs); ++ if (newLen >= p->numFastBytes) ++ { ++ p->numPairs = numPairs; ++ p->longestMatchLength = newLen; ++ return Backward(p, backRes, cur); ++ } ++ position++; ++ curOpt = &p->opt[cur]; ++ posPrev = curOpt->posPrev; ++ if (curOpt->prev1IsChar) ++ { ++ posPrev--; ++ if (curOpt->prev2) ++ { ++ state = p->opt[curOpt->posPrev2].state; ++ if (curOpt->backPrev2 < LZMA_NUM_REPS) ++ state = kRepNextStates[state]; ++ else ++ state = kMatchNextStates[state]; ++ } ++ else ++ state = p->opt[posPrev].state; ++ state = kLiteralNextStates[state]; ++ } ++ else ++ state = p->opt[posPrev].state; ++ if (posPrev == cur - 1) ++ { ++ if (IsShortRep(curOpt)) ++ state = kShortRepNextStates[state]; ++ else ++ state = kLiteralNextStates[state]; ++ } ++ else ++ { ++ UInt32 pos; ++ const COptimal *prevOpt; ++ if (curOpt->prev1IsChar && curOpt->prev2) ++ { ++ posPrev = curOpt->posPrev2; ++ pos = curOpt->backPrev2; ++ state = kRepNextStates[state]; ++ } ++ else ++ { ++ pos = curOpt->backPrev; ++ if (pos < LZMA_NUM_REPS) ++ state = kRepNextStates[state]; ++ else ++ state = kMatchNextStates[state]; ++ } ++ prevOpt = &p->opt[posPrev]; ++ if (pos < LZMA_NUM_REPS) ++ { ++ UInt32 i; ++ reps[0] = prevOpt->backs[pos]; ++ for (i = 1; i <= pos; i++) ++ reps[i] = prevOpt->backs[i - 1]; ++ for (; i < LZMA_NUM_REPS; i++) ++ reps[i] = prevOpt->backs[i]; ++ } ++ else ++ { ++ UInt32 i; ++ reps[0] = (pos - LZMA_NUM_REPS); ++ for (i = 1; i < LZMA_NUM_REPS; i++) ++ reps[i] = prevOpt->backs[i - 1]; ++ } ++ } ++ curOpt->state = (CState)state; ++ ++ curOpt->backs[0] = reps[0]; ++ curOpt->backs[1] = reps[1]; ++ curOpt->backs[2] = reps[2]; ++ curOpt->backs[3] = reps[3]; ++ ++ curPrice = curOpt->price; ++ nextIsChar = False; ++ data = p->matchFinder.GetPointerToCurrentPos(p->matchFinderObj) - 1; ++ curByte = *data; ++ matchByte = *(data - (reps[0] + 1)); ++ ++ posState = (position & p->pbMask); ++ ++ curAnd1Price = curPrice + GET_PRICE_0(p->isMatch[state][posState]); ++ { ++ const CLzmaProb *probs = LIT_PROBS(position, *(data - 1)); ++ curAnd1Price += ++ (!IsCharState(state) ? ++ LitEnc_GetPriceMatched(probs, curByte, matchByte, p->ProbPrices) : ++ LitEnc_GetPrice(probs, curByte, p->ProbPrices)); ++ } ++ ++ nextOpt = &p->opt[cur + 1]; ++ ++ if (curAnd1Price < nextOpt->price) ++ { ++ nextOpt->price = curAnd1Price; ++ nextOpt->posPrev = cur; ++ MakeAsChar(nextOpt); ++ nextIsChar = True; ++ } ++ ++ matchPrice = curPrice + GET_PRICE_1(p->isMatch[state][posState]); ++ repMatchPrice = matchPrice + GET_PRICE_1(p->isRep[state]); ++ ++ if (matchByte == curByte && !(nextOpt->posPrev < cur && nextOpt->backPrev == 0)) ++ { ++ UInt32 shortRepPrice = repMatchPrice + GetRepLen1Price(p, state, posState); ++ if (shortRepPrice <= nextOpt->price) ++ { ++ nextOpt->price = shortRepPrice; ++ nextOpt->posPrev = cur; ++ MakeAsShortRep(nextOpt); ++ nextIsChar = True; ++ } ++ } ++ numAvailFull = p->numAvail; ++ { ++ UInt32 temp = kNumOpts - 1 - cur; ++ if (temp < numAvailFull) ++ numAvailFull = temp; ++ } ++ ++ if (numAvailFull < 2) ++ continue; ++ numAvail = (numAvailFull <= p->numFastBytes ? numAvailFull : p->numFastBytes); ++ ++ if (!nextIsChar && matchByte != curByte) /* speed optimization */ ++ { ++ /* try Literal + rep0 */ ++ UInt32 temp; ++ UInt32 lenTest2; ++ const Byte *data2 = data - (reps[0] + 1); ++ UInt32 limit = p->numFastBytes + 1; ++ if (limit > numAvailFull) ++ limit = numAvailFull; ++ ++ for (temp = 1; temp < limit && data[temp] == data2[temp]; temp++); ++ lenTest2 = temp - 1; ++ if (lenTest2 >= 2) ++ { ++ UInt32 state2 = kLiteralNextStates[state]; ++ UInt32 posStateNext = (position + 1) & p->pbMask; ++ UInt32 nextRepMatchPrice = curAnd1Price + ++ GET_PRICE_1(p->isMatch[state2][posStateNext]) + ++ GET_PRICE_1(p->isRep[state2]); ++ /* for (; lenTest2 >= 2; lenTest2--) */ ++ { ++ UInt32 curAndLenPrice; ++ COptimal *opt; ++ UInt32 offset = cur + 1 + lenTest2; ++ while (lenEnd < offset) ++ p->opt[++lenEnd].price = kInfinityPrice; ++ curAndLenPrice = nextRepMatchPrice + GetRepPrice(p, 0, lenTest2, state2, posStateNext); ++ opt = &p->opt[offset]; ++ if (curAndLenPrice < opt->price) ++ { ++ opt->price = curAndLenPrice; ++ opt->posPrev = cur + 1; ++ opt->backPrev = 0; ++ opt->prev1IsChar = True; ++ opt->prev2 = False; ++ } ++ } ++ } ++ } ++ ++ startLen = 2; /* speed optimization */ ++ { ++ UInt32 repIndex; ++ for (repIndex = 0; repIndex < LZMA_NUM_REPS; repIndex++) ++ { ++ UInt32 lenTest; ++ UInt32 lenTestTemp; ++ UInt32 price; ++ const Byte *data2 = data - (reps[repIndex] + 1); ++ if (data[0] != data2[0] || data[1] != data2[1]) ++ continue; ++ for (lenTest = 2; lenTest < numAvail && data[lenTest] == data2[lenTest]; lenTest++); ++ while (lenEnd < cur + lenTest) ++ p->opt[++lenEnd].price = kInfinityPrice; ++ lenTestTemp = lenTest; ++ price = repMatchPrice + GetPureRepPrice(p, repIndex, state, posState); ++ do ++ { ++ UInt32 curAndLenPrice = price + p->repLenEnc.prices[posState][lenTest - 2]; ++ COptimal *opt = &p->opt[cur + lenTest]; ++ if (curAndLenPrice < opt->price) ++ { ++ opt->price = curAndLenPrice; ++ opt->posPrev = cur; ++ opt->backPrev = repIndex; ++ opt->prev1IsChar = False; ++ } ++ } ++ while (--lenTest >= 2); ++ lenTest = lenTestTemp; ++ ++ if (repIndex == 0) ++ startLen = lenTest + 1; ++ ++ /* if (_maxMode) */ ++ { ++ UInt32 lenTest2 = lenTest + 1; ++ UInt32 limit = lenTest2 + p->numFastBytes; ++ UInt32 nextRepMatchPrice; ++ if (limit > numAvailFull) ++ limit = numAvailFull; ++ for (; lenTest2 < limit && data[lenTest2] == data2[lenTest2]; lenTest2++); ++ lenTest2 -= lenTest + 1; ++ if (lenTest2 >= 2) ++ { ++ UInt32 state2 = kRepNextStates[state]; ++ UInt32 posStateNext = (position + lenTest) & p->pbMask; ++ UInt32 curAndLenCharPrice = ++ price + p->repLenEnc.prices[posState][lenTest - 2] + ++ GET_PRICE_0(p->isMatch[state2][posStateNext]) + ++ LitEnc_GetPriceMatched(LIT_PROBS(position + lenTest, data[lenTest - 1]), ++ data[lenTest], data2[lenTest], p->ProbPrices); ++ state2 = kLiteralNextStates[state2]; ++ posStateNext = (position + lenTest + 1) & p->pbMask; ++ nextRepMatchPrice = curAndLenCharPrice + ++ GET_PRICE_1(p->isMatch[state2][posStateNext]) + ++ GET_PRICE_1(p->isRep[state2]); ++ ++ /* for (; lenTest2 >= 2; lenTest2--) */ ++ { ++ UInt32 curAndLenPrice; ++ COptimal *opt; ++ UInt32 offset = cur + lenTest + 1 + lenTest2; ++ while (lenEnd < offset) ++ p->opt[++lenEnd].price = kInfinityPrice; ++ curAndLenPrice = nextRepMatchPrice + GetRepPrice(p, 0, lenTest2, state2, posStateNext); ++ opt = &p->opt[offset]; ++ if (curAndLenPrice < opt->price) ++ { ++ opt->price = curAndLenPrice; ++ opt->posPrev = cur + lenTest + 1; ++ opt->backPrev = 0; ++ opt->prev1IsChar = True; ++ opt->prev2 = True; ++ opt->posPrev2 = cur; ++ opt->backPrev2 = repIndex; ++ } ++ } ++ } ++ } ++ } ++ } ++ /* for (UInt32 lenTest = 2; lenTest <= newLen; lenTest++) */ ++ if (newLen > numAvail) ++ { ++ newLen = numAvail; ++ for (numPairs = 0; newLen > matches[numPairs]; numPairs += 2); ++ matches[numPairs] = newLen; ++ numPairs += 2; ++ } ++ if (newLen >= startLen) ++ { ++ UInt32 normalMatchPrice = matchPrice + GET_PRICE_0(p->isRep[state]); ++ UInt32 offs, curBack, posSlot; ++ UInt32 lenTest; ++ while (lenEnd < cur + newLen) ++ p->opt[++lenEnd].price = kInfinityPrice; ++ ++ offs = 0; ++ while (startLen > matches[offs]) ++ offs += 2; ++ curBack = matches[offs + 1]; ++ GetPosSlot2(curBack, posSlot); ++ for (lenTest = /*2*/ startLen; ; lenTest++) ++ { ++ UInt32 curAndLenPrice = normalMatchPrice + p->lenEnc.prices[posState][lenTest - LZMA_MATCH_LEN_MIN]; ++ UInt32 lenToPosState = GetLenToPosState(lenTest); ++ COptimal *opt; ++ if (curBack < kNumFullDistances) ++ curAndLenPrice += p->distancesPrices[lenToPosState][curBack]; ++ else ++ curAndLenPrice += p->posSlotPrices[lenToPosState][posSlot] + p->alignPrices[curBack & kAlignMask]; ++ ++ opt = &p->opt[cur + lenTest]; ++ if (curAndLenPrice < opt->price) ++ { ++ opt->price = curAndLenPrice; ++ opt->posPrev = cur; ++ opt->backPrev = curBack + LZMA_NUM_REPS; ++ opt->prev1IsChar = False; ++ } ++ ++ if (/*_maxMode && */lenTest == matches[offs]) ++ { ++ /* Try Match + Literal + Rep0 */ ++ const Byte *data2 = data - (curBack + 1); ++ UInt32 lenTest2 = lenTest + 1; ++ UInt32 limit = lenTest2 + p->numFastBytes; ++ UInt32 nextRepMatchPrice; ++ if (limit > numAvailFull) ++ limit = numAvailFull; ++ for (; lenTest2 < limit && data[lenTest2] == data2[lenTest2]; lenTest2++); ++ lenTest2 -= lenTest + 1; ++ if (lenTest2 >= 2) ++ { ++ UInt32 state2 = kMatchNextStates[state]; ++ UInt32 posStateNext = (position + lenTest) & p->pbMask; ++ UInt32 curAndLenCharPrice = curAndLenPrice + ++ GET_PRICE_0(p->isMatch[state2][posStateNext]) + ++ LitEnc_GetPriceMatched(LIT_PROBS(position + lenTest, data[lenTest - 1]), ++ data[lenTest], data2[lenTest], p->ProbPrices); ++ state2 = kLiteralNextStates[state2]; ++ posStateNext = (posStateNext + 1) & p->pbMask; ++ nextRepMatchPrice = curAndLenCharPrice + ++ GET_PRICE_1(p->isMatch[state2][posStateNext]) + ++ GET_PRICE_1(p->isRep[state2]); ++ ++ /* for (; lenTest2 >= 2; lenTest2--) */ ++ { ++ UInt32 offset = cur + lenTest + 1 + lenTest2; ++ UInt32 curAndLenPrice; ++ COptimal *opt; ++ while (lenEnd < offset) ++ p->opt[++lenEnd].price = kInfinityPrice; ++ curAndLenPrice = nextRepMatchPrice + GetRepPrice(p, 0, lenTest2, state2, posStateNext); ++ opt = &p->opt[offset]; ++ if (curAndLenPrice < opt->price) ++ { ++ opt->price = curAndLenPrice; ++ opt->posPrev = cur + lenTest + 1; ++ opt->backPrev = 0; ++ opt->prev1IsChar = True; ++ opt->prev2 = True; ++ opt->posPrev2 = cur; ++ opt->backPrev2 = curBack + LZMA_NUM_REPS; ++ } ++ } ++ } ++ offs += 2; ++ if (offs == numPairs) ++ break; ++ curBack = matches[offs + 1]; ++ if (curBack >= kNumFullDistances) ++ GetPosSlot2(curBack, posSlot); ++ } ++ } ++ } ++ } ++} ++ ++#define ChangePair(smallDist, bigDist) (((bigDist) >> 7) > (smallDist)) ++ ++static UInt32 GetOptimumFast(CLzmaEnc *p, UInt32 *backRes) ++{ ++ UInt32 numAvail, mainLen, mainDist, numPairs, repIndex, repLen, i; ++ const Byte *data; ++ const UInt32 *matches; ++ ++ if (p->additionalOffset == 0) ++ mainLen = ReadMatchDistances(p, &numPairs); ++ else ++ { ++ mainLen = p->longestMatchLength; ++ numPairs = p->numPairs; ++ } ++ ++ numAvail = p->numAvail; ++ *backRes = (UInt32)-1; ++ if (numAvail < 2) ++ return 1; ++ if (numAvail > LZMA_MATCH_LEN_MAX) ++ numAvail = LZMA_MATCH_LEN_MAX; ++ data = p->matchFinder.GetPointerToCurrentPos(p->matchFinderObj) - 1; ++ ++ repLen = repIndex = 0; ++ for (i = 0; i < LZMA_NUM_REPS; i++) ++ { ++ UInt32 len; ++ const Byte *data2 = data - (p->reps[i] + 1); ++ if (data[0] != data2[0] || data[1] != data2[1]) ++ continue; ++ for (len = 2; len < numAvail && data[len] == data2[len]; len++); ++ if (len >= p->numFastBytes) ++ { ++ *backRes = i; ++ MovePos(p, len - 1); ++ return len; ++ } ++ if (len > repLen) ++ { ++ repIndex = i; ++ repLen = len; ++ } ++ } ++ ++ matches = p->matches; ++ if (mainLen >= p->numFastBytes) ++ { ++ *backRes = matches[numPairs - 1] + LZMA_NUM_REPS; ++ MovePos(p, mainLen - 1); ++ return mainLen; ++ } ++ ++ mainDist = 0; /* for GCC */ ++ if (mainLen >= 2) ++ { ++ mainDist = matches[numPairs - 1]; ++ while (numPairs > 2 && mainLen == matches[numPairs - 4] + 1) ++ { ++ if (!ChangePair(matches[numPairs - 3], mainDist)) ++ break; ++ numPairs -= 2; ++ mainLen = matches[numPairs - 2]; ++ mainDist = matches[numPairs - 1]; ++ } ++ if (mainLen == 2 && mainDist >= 0x80) ++ mainLen = 1; ++ } ++ ++ if (repLen >= 2 && ( ++ (repLen + 1 >= mainLen) || ++ (repLen + 2 >= mainLen && mainDist >= (1 << 9)) || ++ (repLen + 3 >= mainLen && mainDist >= (1 << 15)))) ++ { ++ *backRes = repIndex; ++ MovePos(p, repLen - 1); ++ return repLen; ++ } ++ ++ if (mainLen < 2 || numAvail <= 2) ++ return 1; ++ ++ p->longestMatchLength = ReadMatchDistances(p, &p->numPairs); ++ if (p->longestMatchLength >= 2) ++ { ++ UInt32 newDistance = matches[p->numPairs - 1]; ++ if ((p->longestMatchLength >= mainLen && newDistance < mainDist) || ++ (p->longestMatchLength == mainLen + 1 && !ChangePair(mainDist, newDistance)) || ++ (p->longestMatchLength > mainLen + 1) || ++ (p->longestMatchLength + 1 >= mainLen && mainLen >= 3 && ChangePair(newDistance, mainDist))) ++ return 1; ++ } ++ ++ data = p->matchFinder.GetPointerToCurrentPos(p->matchFinderObj) - 1; ++ for (i = 0; i < LZMA_NUM_REPS; i++) ++ { ++ UInt32 len, limit; ++ const Byte *data2 = data - (p->reps[i] + 1); ++ if (data[0] != data2[0] || data[1] != data2[1]) ++ continue; ++ limit = mainLen - 1; ++ for (len = 2; len < limit && data[len] == data2[len]; len++); ++ if (len >= limit) ++ return 1; ++ } ++ *backRes = mainDist + LZMA_NUM_REPS; ++ MovePos(p, mainLen - 2); ++ return mainLen; ++} ++ ++static void WriteEndMarker(CLzmaEnc *p, UInt32 posState) ++{ ++ UInt32 len; ++ RangeEnc_EncodeBit(&p->rc, &p->isMatch[p->state][posState], 1); ++ RangeEnc_EncodeBit(&p->rc, &p->isRep[p->state], 0); ++ p->state = kMatchNextStates[p->state]; ++ len = LZMA_MATCH_LEN_MIN; ++ LenEnc_Encode2(&p->lenEnc, &p->rc, len - LZMA_MATCH_LEN_MIN, posState, !p->fastMode, p->ProbPrices); ++ RcTree_Encode(&p->rc, p->posSlotEncoder[GetLenToPosState(len)], kNumPosSlotBits, (1 << kNumPosSlotBits) - 1); ++ RangeEnc_EncodeDirectBits(&p->rc, (((UInt32)1 << 30) - 1) >> kNumAlignBits, 30 - kNumAlignBits); ++ RcTree_ReverseEncode(&p->rc, p->posAlignEncoder, kNumAlignBits, kAlignMask); ++} ++ ++static SRes CheckErrors(CLzmaEnc *p) ++{ ++ if (p->result != SZ_OK) ++ return p->result; ++ if (p->rc.res != SZ_OK) ++ p->result = SZ_ERROR_WRITE; ++ if (p->matchFinderBase.result != SZ_OK) ++ p->result = SZ_ERROR_READ; ++ if (p->result != SZ_OK) ++ p->finished = True; ++ return p->result; ++} ++ ++static SRes Flush(CLzmaEnc *p, UInt32 nowPos) ++{ ++ /* ReleaseMFStream(); */ ++ p->finished = True; ++ if (p->writeEndMark) ++ WriteEndMarker(p, nowPos & p->pbMask); ++ RangeEnc_FlushData(&p->rc); ++ RangeEnc_FlushStream(&p->rc); ++ return CheckErrors(p); ++} ++ ++static void FillAlignPrices(CLzmaEnc *p) ++{ ++ UInt32 i; ++ for (i = 0; i < kAlignTableSize; i++) ++ p->alignPrices[i] = RcTree_ReverseGetPrice(p->posAlignEncoder, kNumAlignBits, i, p->ProbPrices); ++ p->alignPriceCount = 0; ++} ++ ++static void FillDistancesPrices(CLzmaEnc *p) ++{ ++ UInt32 tempPrices[kNumFullDistances]; ++ UInt32 i, lenToPosState; ++ for (i = kStartPosModelIndex; i < kNumFullDistances; i++) ++ { ++ UInt32 posSlot = GetPosSlot1(i); ++ UInt32 footerBits = ((posSlot >> 1) - 1); ++ UInt32 base = ((2 | (posSlot & 1)) << footerBits); ++ tempPrices[i] = RcTree_ReverseGetPrice(p->posEncoders + base - posSlot - 1, footerBits, i - base, p->ProbPrices); ++ } ++ ++ for (lenToPosState = 0; lenToPosState < kNumLenToPosStates; lenToPosState++) ++ { ++ UInt32 posSlot; ++ const CLzmaProb *encoder = p->posSlotEncoder[lenToPosState]; ++ UInt32 *posSlotPrices = p->posSlotPrices[lenToPosState]; ++ for (posSlot = 0; posSlot < p->distTableSize; posSlot++) ++ posSlotPrices[posSlot] = RcTree_GetPrice(encoder, kNumPosSlotBits, posSlot, p->ProbPrices); ++ for (posSlot = kEndPosModelIndex; posSlot < p->distTableSize; posSlot++) ++ posSlotPrices[posSlot] += ((((posSlot >> 1) - 1) - kNumAlignBits) << kNumBitPriceShiftBits); ++ ++ { ++ UInt32 *distancesPrices = p->distancesPrices[lenToPosState]; ++ UInt32 i; ++ for (i = 0; i < kStartPosModelIndex; i++) ++ distancesPrices[i] = posSlotPrices[i]; ++ for (; i < kNumFullDistances; i++) ++ distancesPrices[i] = posSlotPrices[GetPosSlot1(i)] + tempPrices[i]; ++ } ++ } ++ p->matchPriceCount = 0; ++} ++ ++void LzmaEnc_Construct(CLzmaEnc *p) ++{ ++ RangeEnc_Construct(&p->rc); ++ MatchFinder_Construct(&p->matchFinderBase); ++ #ifndef _7ZIP_ST ++ MatchFinderMt_Construct(&p->matchFinderMt); ++ p->matchFinderMt.MatchFinder = &p->matchFinderBase; ++ #endif ++ ++ { ++ CLzmaEncProps props; ++ LzmaEncProps_Init(&props); ++ LzmaEnc_SetProps(p, &props); ++ } ++ ++ #ifndef LZMA_LOG_BSR ++ LzmaEnc_FastPosInit(p->g_FastPos); ++ #endif ++ ++ LzmaEnc_InitPriceTables(p->ProbPrices); ++ p->litProbs = 0; ++ p->saveState.litProbs = 0; ++} ++ ++CLzmaEncHandle LzmaEnc_Create(ISzAlloc *alloc) ++{ ++ void *p; ++ p = alloc->Alloc(alloc, sizeof(CLzmaEnc)); ++ if (p != 0) ++ LzmaEnc_Construct((CLzmaEnc *)p); ++ return p; ++} ++ ++void LzmaEnc_FreeLits(CLzmaEnc *p, ISzAlloc *alloc) ++{ ++ alloc->Free(alloc, p->litProbs); ++ alloc->Free(alloc, p->saveState.litProbs); ++ p->litProbs = 0; ++ p->saveState.litProbs = 0; ++} ++ ++void LzmaEnc_Destruct(CLzmaEnc *p, ISzAlloc *alloc, ISzAlloc *allocBig) ++{ ++ #ifndef _7ZIP_ST ++ MatchFinderMt_Destruct(&p->matchFinderMt, allocBig); ++ #endif ++ MatchFinder_Free(&p->matchFinderBase, allocBig); ++ LzmaEnc_FreeLits(p, alloc); ++ RangeEnc_Free(&p->rc, alloc); ++} ++ ++void LzmaEnc_Destroy(CLzmaEncHandle p, ISzAlloc *alloc, ISzAlloc *allocBig) ++{ ++ LzmaEnc_Destruct((CLzmaEnc *)p, alloc, allocBig); ++ alloc->Free(alloc, p); ++} ++ ++static SRes LzmaEnc_CodeOneBlock(CLzmaEnc *p, Bool useLimits, UInt32 maxPackSize, UInt32 maxUnpackSize) ++{ ++ UInt32 nowPos32, startPos32; ++ if (p->needInit) ++ { ++ p->matchFinder.Init(p->matchFinderObj); ++ p->needInit = 0; ++ } ++ ++ if (p->finished) ++ return p->result; ++ RINOK(CheckErrors(p)); ++ ++ nowPos32 = (UInt32)p->nowPos64; ++ startPos32 = nowPos32; ++ ++ if (p->nowPos64 == 0) ++ { ++ UInt32 numPairs; ++ Byte curByte; ++ if (p->matchFinder.GetNumAvailableBytes(p->matchFinderObj) == 0) ++ return Flush(p, nowPos32); ++ ReadMatchDistances(p, &numPairs); ++ RangeEnc_EncodeBit(&p->rc, &p->isMatch[p->state][0], 0); ++ p->state = kLiteralNextStates[p->state]; ++ curByte = p->matchFinder.GetIndexByte(p->matchFinderObj, 0 - p->additionalOffset); ++ LitEnc_Encode(&p->rc, p->litProbs, curByte); ++ p->additionalOffset--; ++ nowPos32++; ++ } ++ ++ if (p->matchFinder.GetNumAvailableBytes(p->matchFinderObj) != 0) ++ for (;;) ++ { ++ UInt32 pos, len, posState; ++ ++ if (p->fastMode) ++ len = GetOptimumFast(p, &pos); ++ else ++ len = GetOptimum(p, nowPos32, &pos); ++ ++ #ifdef SHOW_STAT2 ++ printf("\n pos = %4X, len = %d pos = %d", nowPos32, len, pos); ++ #endif ++ ++ posState = nowPos32 & p->pbMask; ++ if (len == 1 && pos == (UInt32)-1) ++ { ++ Byte curByte; ++ CLzmaProb *probs; ++ const Byte *data; ++ ++ RangeEnc_EncodeBit(&p->rc, &p->isMatch[p->state][posState], 0); ++ data = p->matchFinder.GetPointerToCurrentPos(p->matchFinderObj) - p->additionalOffset; ++ curByte = *data; ++ probs = LIT_PROBS(nowPos32, *(data - 1)); ++ if (IsCharState(p->state)) ++ LitEnc_Encode(&p->rc, probs, curByte); ++ else ++ LitEnc_EncodeMatched(&p->rc, probs, curByte, *(data - p->reps[0] - 1)); ++ p->state = kLiteralNextStates[p->state]; ++ } ++ else ++ { ++ RangeEnc_EncodeBit(&p->rc, &p->isMatch[p->state][posState], 1); ++ if (pos < LZMA_NUM_REPS) ++ { ++ RangeEnc_EncodeBit(&p->rc, &p->isRep[p->state], 1); ++ if (pos == 0) ++ { ++ RangeEnc_EncodeBit(&p->rc, &p->isRepG0[p->state], 0); ++ RangeEnc_EncodeBit(&p->rc, &p->isRep0Long[p->state][posState], ((len == 1) ? 0 : 1)); ++ } ++ else ++ { ++ UInt32 distance = p->reps[pos]; ++ RangeEnc_EncodeBit(&p->rc, &p->isRepG0[p->state], 1); ++ if (pos == 1) ++ RangeEnc_EncodeBit(&p->rc, &p->isRepG1[p->state], 0); ++ else ++ { ++ RangeEnc_EncodeBit(&p->rc, &p->isRepG1[p->state], 1); ++ RangeEnc_EncodeBit(&p->rc, &p->isRepG2[p->state], pos - 2); ++ if (pos == 3) ++ p->reps[3] = p->reps[2]; ++ p->reps[2] = p->reps[1]; ++ } ++ p->reps[1] = p->reps[0]; ++ p->reps[0] = distance; ++ } ++ if (len == 1) ++ p->state = kShortRepNextStates[p->state]; ++ else ++ { ++ LenEnc_Encode2(&p->repLenEnc, &p->rc, len - LZMA_MATCH_LEN_MIN, posState, !p->fastMode, p->ProbPrices); ++ p->state = kRepNextStates[p->state]; ++ } ++ } ++ else ++ { ++ UInt32 posSlot; ++ RangeEnc_EncodeBit(&p->rc, &p->isRep[p->state], 0); ++ p->state = kMatchNextStates[p->state]; ++ LenEnc_Encode2(&p->lenEnc, &p->rc, len - LZMA_MATCH_LEN_MIN, posState, !p->fastMode, p->ProbPrices); ++ pos -= LZMA_NUM_REPS; ++ GetPosSlot(pos, posSlot); ++ RcTree_Encode(&p->rc, p->posSlotEncoder[GetLenToPosState(len)], kNumPosSlotBits, posSlot); ++ ++ if (posSlot >= kStartPosModelIndex) ++ { ++ UInt32 footerBits = ((posSlot >> 1) - 1); ++ UInt32 base = ((2 | (posSlot & 1)) << footerBits); ++ UInt32 posReduced = pos - base; ++ ++ if (posSlot < kEndPosModelIndex) ++ RcTree_ReverseEncode(&p->rc, p->posEncoders + base - posSlot - 1, footerBits, posReduced); ++ else ++ { ++ RangeEnc_EncodeDirectBits(&p->rc, posReduced >> kNumAlignBits, footerBits - kNumAlignBits); ++ RcTree_ReverseEncode(&p->rc, p->posAlignEncoder, kNumAlignBits, posReduced & kAlignMask); ++ p->alignPriceCount++; ++ } ++ } ++ p->reps[3] = p->reps[2]; ++ p->reps[2] = p->reps[1]; ++ p->reps[1] = p->reps[0]; ++ p->reps[0] = pos; ++ p->matchPriceCount++; ++ } ++ } ++ p->additionalOffset -= len; ++ nowPos32 += len; ++ if (p->additionalOffset == 0) ++ { ++ UInt32 processed; ++ if (!p->fastMode) ++ { ++ if (p->matchPriceCount >= (1 << 7)) ++ FillDistancesPrices(p); ++ if (p->alignPriceCount >= kAlignTableSize) ++ FillAlignPrices(p); ++ } ++ if (p->matchFinder.GetNumAvailableBytes(p->matchFinderObj) == 0) ++ break; ++ processed = nowPos32 - startPos32; ++ if (useLimits) ++ { ++ if (processed + kNumOpts + 300 >= maxUnpackSize || ++ RangeEnc_GetProcessed(&p->rc) + kNumOpts * 2 >= maxPackSize) ++ break; ++ } ++ else if (processed >= (1 << 15)) ++ { ++ p->nowPos64 += nowPos32 - startPos32; ++ return CheckErrors(p); ++ } ++ } ++ } ++ p->nowPos64 += nowPos32 - startPos32; ++ return Flush(p, nowPos32); ++} ++ ++#define kBigHashDicLimit ((UInt32)1 << 24) ++ ++static SRes LzmaEnc_Alloc(CLzmaEnc *p, UInt32 keepWindowSize, ISzAlloc *alloc, ISzAlloc *allocBig) ++{ ++ UInt32 beforeSize = kNumOpts; ++ Bool btMode; ++ if (!RangeEnc_Alloc(&p->rc, alloc)) ++ return SZ_ERROR_MEM; ++ btMode = (p->matchFinderBase.btMode != 0); ++ #ifndef _7ZIP_ST ++ p->mtMode = (p->multiThread && !p->fastMode && btMode); ++ #endif ++ ++ { ++ unsigned lclp = p->lc + p->lp; ++ if (p->litProbs == 0 || p->saveState.litProbs == 0 || p->lclp != lclp) ++ { ++ LzmaEnc_FreeLits(p, alloc); ++ p->litProbs = (CLzmaProb *)alloc->Alloc(alloc, (0x300 << lclp) * sizeof(CLzmaProb)); ++ p->saveState.litProbs = (CLzmaProb *)alloc->Alloc(alloc, (0x300 << lclp) * sizeof(CLzmaProb)); ++ if (p->litProbs == 0 || p->saveState.litProbs == 0) ++ { ++ LzmaEnc_FreeLits(p, alloc); ++ return SZ_ERROR_MEM; ++ } ++ p->lclp = lclp; ++ } ++ } ++ ++ p->matchFinderBase.bigHash = (p->dictSize > kBigHashDicLimit); ++ ++ if (beforeSize + p->dictSize < keepWindowSize) ++ beforeSize = keepWindowSize - p->dictSize; ++ ++ #ifndef _7ZIP_ST ++ if (p->mtMode) ++ { ++ RINOK(MatchFinderMt_Create(&p->matchFinderMt, p->dictSize, beforeSize, p->numFastBytes, LZMA_MATCH_LEN_MAX, allocBig)); ++ p->matchFinderObj = &p->matchFinderMt; ++ MatchFinderMt_CreateVTable(&p->matchFinderMt, &p->matchFinder); ++ } ++ else ++ #endif ++ { ++ if (!MatchFinder_Create(&p->matchFinderBase, p->dictSize, beforeSize, p->numFastBytes, LZMA_MATCH_LEN_MAX, allocBig)) ++ return SZ_ERROR_MEM; ++ p->matchFinderObj = &p->matchFinderBase; ++ MatchFinder_CreateVTable(&p->matchFinderBase, &p->matchFinder); ++ } ++ return SZ_OK; ++} ++ ++void LzmaEnc_Init(CLzmaEnc *p) ++{ ++ UInt32 i; ++ p->state = 0; ++ for (i = 0 ; i < LZMA_NUM_REPS; i++) ++ p->reps[i] = 0; ++ ++ RangeEnc_Init(&p->rc); ++ ++ ++ for (i = 0; i < kNumStates; i++) ++ { ++ UInt32 j; ++ for (j = 0; j < LZMA_NUM_PB_STATES_MAX; j++) ++ { ++ p->isMatch[i][j] = kProbInitValue; ++ p->isRep0Long[i][j] = kProbInitValue; ++ } ++ p->isRep[i] = kProbInitValue; ++ p->isRepG0[i] = kProbInitValue; ++ p->isRepG1[i] = kProbInitValue; ++ p->isRepG2[i] = kProbInitValue; ++ } ++ ++ { ++ UInt32 num = 0x300 << (p->lp + p->lc); ++ for (i = 0; i < num; i++) ++ p->litProbs[i] = kProbInitValue; ++ } ++ ++ { ++ for (i = 0; i < kNumLenToPosStates; i++) ++ { ++ CLzmaProb *probs = p->posSlotEncoder[i]; ++ UInt32 j; ++ for (j = 0; j < (1 << kNumPosSlotBits); j++) ++ probs[j] = kProbInitValue; ++ } ++ } ++ { ++ for (i = 0; i < kNumFullDistances - kEndPosModelIndex; i++) ++ p->posEncoders[i] = kProbInitValue; ++ } ++ ++ LenEnc_Init(&p->lenEnc.p); ++ LenEnc_Init(&p->repLenEnc.p); ++ ++ for (i = 0; i < (1 << kNumAlignBits); i++) ++ p->posAlignEncoder[i] = kProbInitValue; ++ ++ p->optimumEndIndex = 0; ++ p->optimumCurrentIndex = 0; ++ p->additionalOffset = 0; ++ ++ p->pbMask = (1 << p->pb) - 1; ++ p->lpMask = (1 << p->lp) - 1; ++} ++ ++void LzmaEnc_InitPrices(CLzmaEnc *p) ++{ ++ if (!p->fastMode) ++ { ++ FillDistancesPrices(p); ++ FillAlignPrices(p); ++ } ++ ++ p->lenEnc.tableSize = ++ p->repLenEnc.tableSize = ++ p->numFastBytes + 1 - LZMA_MATCH_LEN_MIN; ++ LenPriceEnc_UpdateTables(&p->lenEnc, 1 << p->pb, p->ProbPrices); ++ LenPriceEnc_UpdateTables(&p->repLenEnc, 1 << p->pb, p->ProbPrices); ++} ++ ++static SRes LzmaEnc_AllocAndInit(CLzmaEnc *p, UInt32 keepWindowSize, ISzAlloc *alloc, ISzAlloc *allocBig) ++{ ++ UInt32 i; ++ for (i = 0; i < (UInt32)kDicLogSizeMaxCompress; i++) ++ if (p->dictSize <= ((UInt32)1 << i)) ++ break; ++ p->distTableSize = i * 2; ++ ++ p->finished = False; ++ p->result = SZ_OK; ++ RINOK(LzmaEnc_Alloc(p, keepWindowSize, alloc, allocBig)); ++ LzmaEnc_Init(p); ++ LzmaEnc_InitPrices(p); ++ p->nowPos64 = 0; ++ return SZ_OK; ++} ++ ++static SRes LzmaEnc_Prepare(CLzmaEncHandle pp, ISeqOutStream *outStream, ISeqInStream *inStream, ++ ISzAlloc *alloc, ISzAlloc *allocBig) ++{ ++ CLzmaEnc *p = (CLzmaEnc *)pp; ++ p->matchFinderBase.stream = inStream; ++ p->needInit = 1; ++ p->rc.outStream = outStream; ++ return LzmaEnc_AllocAndInit(p, 0, alloc, allocBig); ++} ++ ++SRes LzmaEnc_PrepareForLzma2(CLzmaEncHandle pp, ++ ISeqInStream *inStream, UInt32 keepWindowSize, ++ ISzAlloc *alloc, ISzAlloc *allocBig) ++{ ++ CLzmaEnc *p = (CLzmaEnc *)pp; ++ p->matchFinderBase.stream = inStream; ++ p->needInit = 1; ++ return LzmaEnc_AllocAndInit(p, keepWindowSize, alloc, allocBig); ++} ++ ++static void LzmaEnc_SetInputBuf(CLzmaEnc *p, const Byte *src, SizeT srcLen) ++{ ++ p->matchFinderBase.directInput = 1; ++ p->matchFinderBase.bufferBase = (Byte *)src; ++ p->matchFinderBase.directInputRem = srcLen; ++} ++ ++SRes LzmaEnc_MemPrepare(CLzmaEncHandle pp, const Byte *src, SizeT srcLen, ++ UInt32 keepWindowSize, ISzAlloc *alloc, ISzAlloc *allocBig) ++{ ++ CLzmaEnc *p = (CLzmaEnc *)pp; ++ LzmaEnc_SetInputBuf(p, src, srcLen); ++ p->needInit = 1; ++ ++ return LzmaEnc_AllocAndInit(p, keepWindowSize, alloc, allocBig); ++} ++ ++void LzmaEnc_Finish(CLzmaEncHandle pp) ++{ ++ #ifndef _7ZIP_ST ++ CLzmaEnc *p = (CLzmaEnc *)pp; ++ if (p->mtMode) ++ MatchFinderMt_ReleaseStream(&p->matchFinderMt); ++ #else ++ pp = pp; ++ #endif ++} ++ ++typedef struct ++{ ++ ISeqOutStream funcTable; ++ Byte *data; ++ SizeT rem; ++ Bool overflow; ++} CSeqOutStreamBuf; ++ ++static size_t MyWrite(void *pp, const void *data, size_t size) ++{ ++ CSeqOutStreamBuf *p = (CSeqOutStreamBuf *)pp; ++ if (p->rem < size) ++ { ++ size = p->rem; ++ p->overflow = True; ++ } ++ memcpy(p->data, data, size); ++ p->rem -= size; ++ p->data += size; ++ return size; ++} ++ ++ ++UInt32 LzmaEnc_GetNumAvailableBytes(CLzmaEncHandle pp) ++{ ++ const CLzmaEnc *p = (CLzmaEnc *)pp; ++ return p->matchFinder.GetNumAvailableBytes(p->matchFinderObj); ++} ++ ++const Byte *LzmaEnc_GetCurBuf(CLzmaEncHandle pp) ++{ ++ const CLzmaEnc *p = (CLzmaEnc *)pp; ++ return p->matchFinder.GetPointerToCurrentPos(p->matchFinderObj) - p->additionalOffset; ++} ++ ++SRes LzmaEnc_CodeOneMemBlock(CLzmaEncHandle pp, Bool reInit, ++ Byte *dest, size_t *destLen, UInt32 desiredPackSize, UInt32 *unpackSize) ++{ ++ CLzmaEnc *p = (CLzmaEnc *)pp; ++ UInt64 nowPos64; ++ SRes res; ++ CSeqOutStreamBuf outStream; ++ ++ outStream.funcTable.Write = MyWrite; ++ outStream.data = dest; ++ outStream.rem = *destLen; ++ outStream.overflow = False; ++ ++ p->writeEndMark = False; ++ p->finished = False; ++ p->result = SZ_OK; ++ ++ if (reInit) ++ LzmaEnc_Init(p); ++ LzmaEnc_InitPrices(p); ++ nowPos64 = p->nowPos64; ++ RangeEnc_Init(&p->rc); ++ p->rc.outStream = &outStream.funcTable; ++ ++ res = LzmaEnc_CodeOneBlock(p, True, desiredPackSize, *unpackSize); ++ ++ *unpackSize = (UInt32)(p->nowPos64 - nowPos64); ++ *destLen -= outStream.rem; ++ if (outStream.overflow) ++ return SZ_ERROR_OUTPUT_EOF; ++ ++ return res; ++} ++ ++static SRes LzmaEnc_Encode2(CLzmaEnc *p, ICompressProgress *progress) ++{ ++ SRes res = SZ_OK; ++ ++ #ifndef _7ZIP_ST ++ Byte allocaDummy[0x300]; ++ int i = 0; ++ for (i = 0; i < 16; i++) ++ allocaDummy[i] = (Byte)i; ++ #endif ++ ++ for (;;) ++ { ++ res = LzmaEnc_CodeOneBlock(p, False, 0, 0); ++ if (res != SZ_OK || p->finished != 0) ++ break; ++ if (progress != 0) ++ { ++ res = progress->Progress(progress, p->nowPos64, RangeEnc_GetProcessed(&p->rc)); ++ if (res != SZ_OK) ++ { ++ res = SZ_ERROR_PROGRESS; ++ break; ++ } ++ } ++ } ++ LzmaEnc_Finish(p); ++ return res; ++} ++ ++SRes LzmaEnc_Encode(CLzmaEncHandle pp, ISeqOutStream *outStream, ISeqInStream *inStream, ICompressProgress *progress, ++ ISzAlloc *alloc, ISzAlloc *allocBig) ++{ ++ RINOK(LzmaEnc_Prepare(pp, outStream, inStream, alloc, allocBig)); ++ return LzmaEnc_Encode2((CLzmaEnc *)pp, progress); ++} ++ ++SRes LzmaEnc_WriteProperties(CLzmaEncHandle pp, Byte *props, SizeT *size) ++{ ++ CLzmaEnc *p = (CLzmaEnc *)pp; ++ int i; ++ UInt32 dictSize = p->dictSize; ++ if (*size < LZMA_PROPS_SIZE) ++ return SZ_ERROR_PARAM; ++ *size = LZMA_PROPS_SIZE; ++ props[0] = (Byte)((p->pb * 5 + p->lp) * 9 + p->lc); ++ ++ for (i = 11; i <= 30; i++) ++ { ++ if (dictSize <= ((UInt32)2 << i)) ++ { ++ dictSize = (2 << i); ++ break; ++ } ++ if (dictSize <= ((UInt32)3 << i)) ++ { ++ dictSize = (3 << i); ++ break; ++ } ++ } ++ ++ for (i = 0; i < 4; i++) ++ props[1 + i] = (Byte)(dictSize >> (8 * i)); ++ return SZ_OK; ++} ++ ++SRes LzmaEnc_MemEncode(CLzmaEncHandle pp, Byte *dest, SizeT *destLen, const Byte *src, SizeT srcLen, ++ int writeEndMark, ICompressProgress *progress, ISzAlloc *alloc, ISzAlloc *allocBig) ++{ ++ SRes res; ++ CLzmaEnc *p = (CLzmaEnc *)pp; ++ ++ CSeqOutStreamBuf outStream; ++ ++ LzmaEnc_SetInputBuf(p, src, srcLen); ++ ++ outStream.funcTable.Write = MyWrite; ++ outStream.data = dest; ++ outStream.rem = *destLen; ++ outStream.overflow = False; ++ ++ p->writeEndMark = writeEndMark; ++ ++ p->rc.outStream = &outStream.funcTable; ++ res = LzmaEnc_MemPrepare(pp, src, srcLen, 0, alloc, allocBig); ++ if (res == SZ_OK) ++ res = LzmaEnc_Encode2(p, progress); ++ ++ *destLen -= outStream.rem; ++ if (outStream.overflow) ++ return SZ_ERROR_OUTPUT_EOF; ++ return res; ++} ++ ++SRes LzmaEncode(Byte *dest, SizeT *destLen, const Byte *src, SizeT srcLen, ++ const CLzmaEncProps *props, Byte *propsEncoded, SizeT *propsSize, int writeEndMark, ++ ICompressProgress *progress, ISzAlloc *alloc, ISzAlloc *allocBig) ++{ ++ CLzmaEnc *p = (CLzmaEnc *)LzmaEnc_Create(alloc); ++ SRes res; ++ if (p == 0) ++ return SZ_ERROR_MEM; ++ ++ res = LzmaEnc_SetProps(p, props); ++ if (res == SZ_OK) ++ { ++ res = LzmaEnc_WriteProperties(p, propsEncoded, propsSize); ++ if (res == SZ_OK) ++ res = LzmaEnc_MemEncode(p, dest, destLen, src, srcLen, ++ writeEndMark, progress, alloc, allocBig); ++ } ++ ++ LzmaEnc_Destroy(p, alloc, allocBig); ++ return res; ++} +--- /dev/null ++++ b/lib/lzma/Makefile +@@ -0,0 +1,7 @@ ++lzma_compress-objs := LzFind.o LzmaEnc.o ++lzma_decompress-objs := LzmaDec.o ++ ++obj-$(CONFIG_LZMA_COMPRESS) += lzma_compress.o ++obj-$(CONFIG_LZMA_DECOMPRESS) += lzma_decompress.o ++ ++EXTRA_CFLAGS += -Iinclude/linux -Iinclude/linux/lzma -include types.h diff --git a/target/linux/generic/patches-2.6.39/510-yaffs_support.patch b/target/linux/generic/patches-2.6.39/510-yaffs_support.patch deleted file mode 100644 index 51ef4fcd3cc..00000000000 --- a/target/linux/generic/patches-2.6.39/510-yaffs_support.patch +++ /dev/null @@ -1,18 +0,0 @@ ---- a/fs/Kconfig -+++ b/fs/Kconfig -@@ -35,6 +35,7 @@ source "fs/gfs2/Kconfig" - source "fs/ocfs2/Kconfig" - source "fs/btrfs/Kconfig" - source "fs/nilfs2/Kconfig" -+source "fs/yaffs2/Kconfig" - - endif # BLOCK - ---- a/fs/Makefile -+++ b/fs/Makefile -@@ -125,3 +125,5 @@ obj-$(CONFIG_GFS2_FS) += gfs2/ - obj-$(CONFIG_EXOFS_FS) += exofs/ - obj-$(CONFIG_CEPH_FS) += ceph/ - obj-$(CONFIG_PSTORE) += pstore/ -+obj-$(CONFIG_YAFFS_FS) += yaffs2/ -+ diff --git a/target/linux/generic/patches-2.6.39/511-debloat_lzma.patch b/target/linux/generic/patches-2.6.39/511-debloat_lzma.patch new file mode 100644 index 00000000000..18e4a51ee35 --- /dev/null +++ b/target/linux/generic/patches-2.6.39/511-debloat_lzma.patch @@ -0,0 +1,485 @@ +--- a/include/linux/lzma/LzmaDec.h ++++ b/include/linux/lzma/LzmaDec.h +@@ -31,14 +31,6 @@ typedef struct _CLzmaProps + UInt32 dicSize; + } CLzmaProps; + +-/* LzmaProps_Decode - decodes properties +-Returns: +- SZ_OK +- SZ_ERROR_UNSUPPORTED - Unsupported properties +-*/ +- +-SRes LzmaProps_Decode(CLzmaProps *p, const Byte *data, unsigned size); +- + + /* ---------- LZMA Decoder state ---------- */ + +@@ -70,8 +62,6 @@ typedef struct + + #define LzmaDec_Construct(p) { (p)->dic = 0; (p)->probs = 0; } + +-void LzmaDec_Init(CLzmaDec *p); +- + /* There are two types of LZMA streams: + 0) Stream with end mark. That end mark adds about 6 bytes to compressed size. + 1) Stream without end mark. You must know exact uncompressed size to decompress such stream. */ +@@ -108,97 +98,6 @@ typedef enum + + /* ELzmaStatus is used only as output value for function call */ + +- +-/* ---------- Interfaces ---------- */ +- +-/* There are 3 levels of interfaces: +- 1) Dictionary Interface +- 2) Buffer Interface +- 3) One Call Interface +- You can select any of these interfaces, but don't mix functions from different +- groups for same object. */ +- +- +-/* There are two variants to allocate state for Dictionary Interface: +- 1) LzmaDec_Allocate / LzmaDec_Free +- 2) LzmaDec_AllocateProbs / LzmaDec_FreeProbs +- You can use variant 2, if you set dictionary buffer manually. +- For Buffer Interface you must always use variant 1. +- +-LzmaDec_Allocate* can return: +- SZ_OK +- SZ_ERROR_MEM - Memory allocation error +- SZ_ERROR_UNSUPPORTED - Unsupported properties +-*/ +- +-SRes LzmaDec_AllocateProbs(CLzmaDec *p, const Byte *props, unsigned propsSize, ISzAlloc *alloc); +-void LzmaDec_FreeProbs(CLzmaDec *p, ISzAlloc *alloc); +- +-SRes LzmaDec_Allocate(CLzmaDec *state, const Byte *prop, unsigned propsSize, ISzAlloc *alloc); +-void LzmaDec_Free(CLzmaDec *state, ISzAlloc *alloc); +- +-/* ---------- Dictionary Interface ---------- */ +- +-/* You can use it, if you want to eliminate the overhead for data copying from +- dictionary to some other external buffer. +- You must work with CLzmaDec variables directly in this interface. +- +- STEPS: +- LzmaDec_Constr() +- LzmaDec_Allocate() +- for (each new stream) +- { +- LzmaDec_Init() +- while (it needs more decompression) +- { +- LzmaDec_DecodeToDic() +- use data from CLzmaDec::dic and update CLzmaDec::dicPos +- } +- } +- LzmaDec_Free() +-*/ +- +-/* LzmaDec_DecodeToDic +- +- The decoding to internal dictionary buffer (CLzmaDec::dic). +- You must manually update CLzmaDec::dicPos, if it reaches CLzmaDec::dicBufSize !!! +- +-finishMode: +- It has meaning only if the decoding reaches output limit (dicLimit). +- LZMA_FINISH_ANY - Decode just dicLimit bytes. +- LZMA_FINISH_END - Stream must be finished after dicLimit. +- +-Returns: +- SZ_OK +- status: +- LZMA_STATUS_FINISHED_WITH_MARK +- LZMA_STATUS_NOT_FINISHED +- LZMA_STATUS_NEEDS_MORE_INPUT +- LZMA_STATUS_MAYBE_FINISHED_WITHOUT_MARK +- SZ_ERROR_DATA - Data error +-*/ +- +-SRes LzmaDec_DecodeToDic(CLzmaDec *p, SizeT dicLimit, +- const Byte *src, SizeT *srcLen, ELzmaFinishMode finishMode, ELzmaStatus *status); +- +- +-/* ---------- Buffer Interface ---------- */ +- +-/* It's zlib-like interface. +- See LzmaDec_DecodeToDic description for information about STEPS and return results, +- but you must use LzmaDec_DecodeToBuf instead of LzmaDec_DecodeToDic and you don't need +- to work with CLzmaDec variables manually. +- +-finishMode: +- It has meaning only if the decoding reaches output limit (*destLen). +- LZMA_FINISH_ANY - Decode just destLen bytes. +- LZMA_FINISH_END - Stream must be finished after (*destLen). +-*/ +- +-SRes LzmaDec_DecodeToBuf(CLzmaDec *p, Byte *dest, SizeT *destLen, +- const Byte *src, SizeT *srcLen, ELzmaFinishMode finishMode, ELzmaStatus *status); +- +- + /* ---------- One Call Interface ---------- */ + + /* LzmaDecode +--- a/lib/lzma/LzmaDec.c ++++ b/lib/lzma/LzmaDec.c +@@ -682,7 +682,7 @@ static void LzmaDec_InitRc(CLzmaDec *p, + p->needFlush = 0; + } + +-void LzmaDec_InitDicAndState(CLzmaDec *p, Bool initDic, Bool initState) ++static void LzmaDec_InitDicAndState(CLzmaDec *p, Bool initDic, Bool initState) + { + p->needFlush = 1; + p->remainLen = 0; +@@ -698,7 +698,7 @@ void LzmaDec_InitDicAndState(CLzmaDec *p + p->needInitState = 1; + } + +-void LzmaDec_Init(CLzmaDec *p) ++static void LzmaDec_Init(CLzmaDec *p) + { + p->dicPos = 0; + LzmaDec_InitDicAndState(p, True, True); +@@ -716,7 +716,7 @@ static void LzmaDec_InitStateReal(CLzmaD + p->needInitState = 0; + } + +-SRes LzmaDec_DecodeToDic(CLzmaDec *p, SizeT dicLimit, const Byte *src, SizeT *srcLen, ++static SRes LzmaDec_DecodeToDic(CLzmaDec *p, SizeT dicLimit, const Byte *src, SizeT *srcLen, + ELzmaFinishMode finishMode, ELzmaStatus *status) + { + SizeT inSize = *srcLen; +@@ -837,7 +837,7 @@ SRes LzmaDec_DecodeToDic(CLzmaDec *p, Si + return (p->code == 0) ? SZ_OK : SZ_ERROR_DATA; + } + +-SRes LzmaDec_DecodeToBuf(CLzmaDec *p, Byte *dest, SizeT *destLen, const Byte *src, SizeT *srcLen, ELzmaFinishMode finishMode, ELzmaStatus *status) ++static __maybe_unused SRes LzmaDec_DecodeToBuf(CLzmaDec *p, Byte *dest, SizeT *destLen, const Byte *src, SizeT *srcLen, ELzmaFinishMode finishMode, ELzmaStatus *status) + { + SizeT outSize = *destLen; + SizeT inSize = *srcLen; +@@ -877,7 +877,7 @@ SRes LzmaDec_DecodeToBuf(CLzmaDec *p, By + } + } + +-void LzmaDec_FreeProbs(CLzmaDec *p, ISzAlloc *alloc) ++static void LzmaDec_FreeProbs(CLzmaDec *p, ISzAlloc *alloc) + { + alloc->Free(alloc, p->probs); + p->probs = 0; +@@ -889,13 +889,13 @@ static void LzmaDec_FreeDict(CLzmaDec *p + p->dic = 0; + } + +-void LzmaDec_Free(CLzmaDec *p, ISzAlloc *alloc) ++static void __maybe_unused LzmaDec_Free(CLzmaDec *p, ISzAlloc *alloc) + { + LzmaDec_FreeProbs(p, alloc); + LzmaDec_FreeDict(p, alloc); + } + +-SRes LzmaProps_Decode(CLzmaProps *p, const Byte *data, unsigned size) ++static SRes LzmaProps_Decode(CLzmaProps *p, const Byte *data, unsigned size) + { + UInt32 dicSize; + Byte d; +@@ -935,7 +935,7 @@ static SRes LzmaDec_AllocateProbs2(CLzma + return SZ_OK; + } + +-SRes LzmaDec_AllocateProbs(CLzmaDec *p, const Byte *props, unsigned propsSize, ISzAlloc *alloc) ++static SRes __maybe_unused LzmaDec_AllocateProbs(CLzmaDec *p, const Byte *props, unsigned propsSize, ISzAlloc *alloc) + { + CLzmaProps propNew; + RINOK(LzmaProps_Decode(&propNew, props, propsSize)); +@@ -944,7 +944,7 @@ SRes LzmaDec_AllocateProbs(CLzmaDec *p, + return SZ_OK; + } + +-SRes LzmaDec_Allocate(CLzmaDec *p, const Byte *props, unsigned propsSize, ISzAlloc *alloc) ++static SRes __maybe_unused LzmaDec_Allocate(CLzmaDec *p, const Byte *props, unsigned propsSize, ISzAlloc *alloc) + { + CLzmaProps propNew; + SizeT dicBufSize; +--- a/include/linux/lzma/LzmaEnc.h ++++ b/include/linux/lzma/LzmaEnc.h +@@ -31,9 +31,6 @@ typedef struct _CLzmaEncProps + } CLzmaEncProps; + + void LzmaEncProps_Init(CLzmaEncProps *p); +-void LzmaEncProps_Normalize(CLzmaEncProps *p); +-UInt32 LzmaEncProps_GetDictSize(const CLzmaEncProps *props2); +- + + /* ---------- CLzmaEncHandle Interface ---------- */ + +@@ -53,26 +50,9 @@ CLzmaEncHandle LzmaEnc_Create(ISzAlloc * + void LzmaEnc_Destroy(CLzmaEncHandle p, ISzAlloc *alloc, ISzAlloc *allocBig); + SRes LzmaEnc_SetProps(CLzmaEncHandle p, const CLzmaEncProps *props); + SRes LzmaEnc_WriteProperties(CLzmaEncHandle p, Byte *properties, SizeT *size); +-SRes LzmaEnc_Encode(CLzmaEncHandle p, ISeqOutStream *outStream, ISeqInStream *inStream, +- ICompressProgress *progress, ISzAlloc *alloc, ISzAlloc *allocBig); + SRes LzmaEnc_MemEncode(CLzmaEncHandle p, Byte *dest, SizeT *destLen, const Byte *src, SizeT srcLen, + int writeEndMark, ICompressProgress *progress, ISzAlloc *alloc, ISzAlloc *allocBig); + +-/* ---------- One Call Interface ---------- */ +- +-/* LzmaEncode +-Return code: +- SZ_OK - OK +- SZ_ERROR_MEM - Memory allocation error +- SZ_ERROR_PARAM - Incorrect paramater +- SZ_ERROR_OUTPUT_EOF - output buffer overflow +- SZ_ERROR_THREAD - errors in multithreading functions (only for Mt version) +-*/ +- +-SRes LzmaEncode(Byte *dest, SizeT *destLen, const Byte *src, SizeT srcLen, +- const CLzmaEncProps *props, Byte *propsEncoded, SizeT *propsSize, int writeEndMark, +- ICompressProgress *progress, ISzAlloc *alloc, ISzAlloc *allocBig); +- + #ifdef __cplusplus + } + #endif +--- a/lib/lzma/LzmaEnc.c ++++ b/lib/lzma/LzmaEnc.c +@@ -53,7 +53,7 @@ void LzmaEncProps_Init(CLzmaEncProps *p) + p->writeEndMark = 0; + } + +-void LzmaEncProps_Normalize(CLzmaEncProps *p) ++static void LzmaEncProps_Normalize(CLzmaEncProps *p) + { + int level = p->level; + if (level < 0) level = 5; +@@ -76,7 +76,7 @@ void LzmaEncProps_Normalize(CLzmaEncProp + #endif + } + +-UInt32 LzmaEncProps_GetDictSize(const CLzmaEncProps *props2) ++static UInt32 __maybe_unused LzmaEncProps_GetDictSize(const CLzmaEncProps *props2) + { + CLzmaEncProps props = *props2; + LzmaEncProps_Normalize(&props); +@@ -93,7 +93,7 @@ UInt32 LzmaEncProps_GetDictSize(const CL + + #define BSR2_RET(pos, res) { unsigned long i; _BitScanReverse(&i, (pos)); res = (i + i) + ((pos >> (i - 1)) & 1); } + +-UInt32 GetPosSlot1(UInt32 pos) ++static UInt32 GetPosSlot1(UInt32 pos) + { + UInt32 res; + BSR2_RET(pos, res); +@@ -107,7 +107,7 @@ UInt32 GetPosSlot1(UInt32 pos) + #define kNumLogBits (9 + (int)sizeof(size_t) / 2) + #define kDicLogSizeMaxCompress ((kNumLogBits - 1) * 2 + 7) + +-void LzmaEnc_FastPosInit(Byte *g_FastPos) ++static void LzmaEnc_FastPosInit(Byte *g_FastPos) + { + int c = 2, slotFast; + g_FastPos[0] = 0; +@@ -339,7 +339,7 @@ typedef struct + CSaveState saveState; + } CLzmaEnc; + +-void LzmaEnc_SaveState(CLzmaEncHandle pp) ++static void __maybe_unused LzmaEnc_SaveState(CLzmaEncHandle pp) + { + CLzmaEnc *p = (CLzmaEnc *)pp; + CSaveState *dest = &p->saveState; +@@ -365,7 +365,7 @@ void LzmaEnc_SaveState(CLzmaEncHandle pp + memcpy(dest->litProbs, p->litProbs, (0x300 << p->lclp) * sizeof(CLzmaProb)); + } + +-void LzmaEnc_RestoreState(CLzmaEncHandle pp) ++static void __maybe_unused LzmaEnc_RestoreState(CLzmaEncHandle pp) + { + CLzmaEnc *dest = (CLzmaEnc *)pp; + const CSaveState *p = &dest->saveState; +@@ -600,7 +600,7 @@ static void LitEnc_EncodeMatched(CRangeE + while (symbol < 0x10000); + } + +-void LzmaEnc_InitPriceTables(UInt32 *ProbPrices) ++static void LzmaEnc_InitPriceTables(UInt32 *ProbPrices) + { + UInt32 i; + for (i = (1 << kNumMoveReducingBits) / 2; i < kBitModelTotal; i += (1 << kNumMoveReducingBits)) +@@ -1676,7 +1676,7 @@ static void FillDistancesPrices(CLzmaEnc + p->matchPriceCount = 0; + } + +-void LzmaEnc_Construct(CLzmaEnc *p) ++static void LzmaEnc_Construct(CLzmaEnc *p) + { + RangeEnc_Construct(&p->rc); + MatchFinder_Construct(&p->matchFinderBase); +@@ -1709,7 +1709,7 @@ CLzmaEncHandle LzmaEnc_Create(ISzAlloc * + return p; + } + +-void LzmaEnc_FreeLits(CLzmaEnc *p, ISzAlloc *alloc) ++static void LzmaEnc_FreeLits(CLzmaEnc *p, ISzAlloc *alloc) + { + alloc->Free(alloc, p->litProbs); + alloc->Free(alloc, p->saveState.litProbs); +@@ -2074,7 +2074,7 @@ SRes LzmaEnc_MemPrepare(CLzmaEncHandle p + return LzmaEnc_AllocAndInit(p, keepWindowSize, alloc, allocBig); + } + +-void LzmaEnc_Finish(CLzmaEncHandle pp) ++static void LzmaEnc_Finish(CLzmaEncHandle pp) + { + #ifndef _7ZIP_ST + CLzmaEnc *p = (CLzmaEnc *)pp; +@@ -2108,7 +2108,7 @@ static size_t MyWrite(void *pp, const vo + } + + +-UInt32 LzmaEnc_GetNumAvailableBytes(CLzmaEncHandle pp) ++static UInt32 __maybe_unused LzmaEnc_GetNumAvailableBytes(CLzmaEncHandle pp) + { + const CLzmaEnc *p = (CLzmaEnc *)pp; + return p->matchFinder.GetNumAvailableBytes(p->matchFinderObj); +@@ -2120,7 +2120,7 @@ const Byte *LzmaEnc_GetCurBuf(CLzmaEncHa + return p->matchFinder.GetPointerToCurrentPos(p->matchFinderObj) - p->additionalOffset; + } + +-SRes LzmaEnc_CodeOneMemBlock(CLzmaEncHandle pp, Bool reInit, ++static SRes __maybe_unused LzmaEnc_CodeOneMemBlock(CLzmaEncHandle pp, Bool reInit, + Byte *dest, size_t *destLen, UInt32 desiredPackSize, UInt32 *unpackSize) + { + CLzmaEnc *p = (CLzmaEnc *)pp; +@@ -2248,7 +2248,7 @@ SRes LzmaEnc_MemEncode(CLzmaEncHandle pp + return res; + } + +-SRes LzmaEncode(Byte *dest, SizeT *destLen, const Byte *src, SizeT srcLen, ++static __maybe_unused SRes LzmaEncode(Byte *dest, SizeT *destLen, const Byte *src, SizeT srcLen, + const CLzmaEncProps *props, Byte *propsEncoded, SizeT *propsSize, int writeEndMark, + ICompressProgress *progress, ISzAlloc *alloc, ISzAlloc *allocBig) + { +--- a/include/linux/lzma/LzFind.h ++++ b/include/linux/lzma/LzFind.h +@@ -55,11 +55,6 @@ typedef struct _CMatchFinder + + #define Inline_MatchFinder_GetNumAvailableBytes(p) ((p)->streamPos - (p)->pos) + +-int MatchFinder_NeedMove(CMatchFinder *p); +-Byte *MatchFinder_GetPointerToCurrentPos(CMatchFinder *p); +-void MatchFinder_MoveBlock(CMatchFinder *p); +-void MatchFinder_ReadIfRequired(CMatchFinder *p); +- + void MatchFinder_Construct(CMatchFinder *p); + + /* Conditions: +@@ -70,12 +65,6 @@ int MatchFinder_Create(CMatchFinder *p, + UInt32 keepAddBufferBefore, UInt32 matchMaxLen, UInt32 keepAddBufferAfter, + ISzAlloc *alloc); + void MatchFinder_Free(CMatchFinder *p, ISzAlloc *alloc); +-void MatchFinder_Normalize3(UInt32 subValue, CLzRef *items, UInt32 numItems); +-void MatchFinder_ReduceOffsets(CMatchFinder *p, UInt32 subValue); +- +-UInt32 * GetMatchesSpec1(UInt32 lenLimit, UInt32 curMatch, UInt32 pos, const Byte *buffer, CLzRef *son, +- UInt32 _cyclicBufferPos, UInt32 _cyclicBufferSize, UInt32 _cutValue, +- UInt32 *distances, UInt32 maxLen); + + /* + Conditions: +@@ -102,12 +91,6 @@ typedef struct _IMatchFinder + + void MatchFinder_CreateVTable(CMatchFinder *p, IMatchFinder *vTable); + +-void MatchFinder_Init(CMatchFinder *p); +-UInt32 Bt3Zip_MatchFinder_GetMatches(CMatchFinder *p, UInt32 *distances); +-UInt32 Hc3Zip_MatchFinder_GetMatches(CMatchFinder *p, UInt32 *distances); +-void Bt3Zip_MatchFinder_Skip(CMatchFinder *p, UInt32 num); +-void Hc3Zip_MatchFinder_Skip(CMatchFinder *p, UInt32 num); +- + #ifdef __cplusplus + } + #endif +--- a/lib/lzma/LzFind.c ++++ b/lib/lzma/LzFind.c +@@ -42,12 +42,12 @@ static int LzInWindow_Create(CMatchFinde + return (p->bufferBase != 0); + } + +-Byte *MatchFinder_GetPointerToCurrentPos(CMatchFinder *p) { return p->buffer; } +-Byte MatchFinder_GetIndexByte(CMatchFinder *p, Int32 index) { return p->buffer[index]; } ++static Byte *MatchFinder_GetPointerToCurrentPos(CMatchFinder *p) { return p->buffer; } ++static Byte MatchFinder_GetIndexByte(CMatchFinder *p, Int32 index) { return p->buffer[index]; } + +-UInt32 MatchFinder_GetNumAvailableBytes(CMatchFinder *p) { return p->streamPos - p->pos; } ++static UInt32 MatchFinder_GetNumAvailableBytes(CMatchFinder *p) { return p->streamPos - p->pos; } + +-void MatchFinder_ReduceOffsets(CMatchFinder *p, UInt32 subValue) ++static void MatchFinder_ReduceOffsets(CMatchFinder *p, UInt32 subValue) + { + p->posLimit -= subValue; + p->pos -= subValue; +@@ -268,7 +268,7 @@ static void MatchFinder_SetLimits(CMatch + p->posLimit = p->pos + limit; + } + +-void MatchFinder_Init(CMatchFinder *p) ++static void MatchFinder_Init(CMatchFinder *p) + { + UInt32 i; + for (i = 0; i < p->hashSizeSum; i++) +@@ -287,7 +287,7 @@ static UInt32 MatchFinder_GetSubValue(CM + return (p->pos - p->historySize - 1) & kNormalizeMask; + } + +-void MatchFinder_Normalize3(UInt32 subValue, CLzRef *items, UInt32 numItems) ++static void MatchFinder_Normalize3(UInt32 subValue, CLzRef *items, UInt32 numItems) + { + UInt32 i; + for (i = 0; i < numItems; i++) +@@ -350,7 +350,7 @@ static UInt32 * Hc_GetMatchesSpec(UInt32 + } + } + +-UInt32 * GetMatchesSpec1(UInt32 lenLimit, UInt32 curMatch, UInt32 pos, const Byte *cur, CLzRef *son, ++static UInt32 * GetMatchesSpec1(UInt32 lenLimit, UInt32 curMatch, UInt32 pos, const Byte *cur, CLzRef *son, + UInt32 _cyclicBufferPos, UInt32 _cyclicBufferSize, UInt32 cutValue, + UInt32 *distances, UInt32 maxLen) + { +@@ -492,7 +492,7 @@ static UInt32 Bt2_MatchFinder_GetMatches + GET_MATCHES_FOOTER(offset, 1) + } + +-UInt32 Bt3Zip_MatchFinder_GetMatches(CMatchFinder *p, UInt32 *distances) ++static __maybe_unused UInt32 Bt3Zip_MatchFinder_GetMatches(CMatchFinder *p, UInt32 *distances) + { + UInt32 offset; + GET_MATCHES_HEADER(3) +@@ -632,7 +632,7 @@ static UInt32 Hc4_MatchFinder_GetMatches + MOVE_POS_RET + } + +-UInt32 Hc3Zip_MatchFinder_GetMatches(CMatchFinder *p, UInt32 *distances) ++static __maybe_unused UInt32 Hc3Zip_MatchFinder_GetMatches(CMatchFinder *p, UInt32 *distances) + { + UInt32 offset; + GET_MATCHES_HEADER(3) +@@ -657,7 +657,7 @@ static void Bt2_MatchFinder_Skip(CMatchF + while (--num != 0); + } + +-void Bt3Zip_MatchFinder_Skip(CMatchFinder *p, UInt32 num) ++static __maybe_unused void Bt3Zip_MatchFinder_Skip(CMatchFinder *p, UInt32 num) + { + do + { +@@ -718,7 +718,7 @@ static void Hc4_MatchFinder_Skip(CMatchF + while (--num != 0); + } + +-void Hc3Zip_MatchFinder_Skip(CMatchFinder *p, UInt32 num) ++static __maybe_unused void Hc3Zip_MatchFinder_Skip(CMatchFinder *p, UInt32 num) + { + do + { diff --git a/target/linux/generic/patches-2.6.39/511-yaffs-cvs-2009-04-24.patch b/target/linux/generic/patches-2.6.39/511-yaffs-cvs-2009-04-24.patch deleted file mode 100644 index 5c70e79a058..00000000000 --- a/target/linux/generic/patches-2.6.39/511-yaffs-cvs-2009-04-24.patch +++ /dev/null @@ -1,12344 +0,0 @@ ---- a/fs/yaffs2/devextras.h -+++ b/fs/yaffs2/devextras.h -@@ -14,194 +14,135 @@ - */ - - /* -- * This file is just holds extra declarations used during development. -- * Most of these are from kernel includes placed here so we can use them in -- * applications. -+ * This file is just holds extra declarations of macros that would normally -+ * be providesd in the Linux kernel. These macros have been written from -+ * scratch but are functionally equivalent to the Linux ones. - * - */ - - #ifndef __EXTRAS_H__ - #define __EXTRAS_H__ - --#if defined WIN32 --#define __inline__ __inline --#define new newHack --#endif -- --#if !(defined __KERNEL__) || (defined WIN32) - --/* User space defines */ -+#if !(defined __KERNEL__) - -+/* Definition of types */ - typedef unsigned char __u8; - typedef unsigned short __u16; - typedef unsigned __u32; - -+#endif -+ - /* -- * Simple doubly linked list implementation. -- * -- * Some of the internal functions ("__xxx") are useful when -- * manipulating whole lists rather than single entries, as -- * sometimes we already know the next/prev entries and we can -- * generate better code by using them directly rather than -- * using the generic single-entry routines. -+ * This is a simple doubly linked list implementation that matches the -+ * way the Linux kernel doubly linked list implementation works. - */ - --#define prefetch(x) 1 -- --struct list_head { -- struct list_head *next, *prev; -+struct ylist_head { -+ struct ylist_head *next; /* next in chain */ -+ struct ylist_head *prev; /* previous in chain */ - }; - --#define LIST_HEAD_INIT(name) { &(name), &(name) } - --#define LIST_HEAD(name) \ -- struct list_head name = LIST_HEAD_INIT(name) -+/* Initialise a static list */ -+#define YLIST_HEAD(name) \ -+struct ylist_head name = { &(name), &(name)} -+ - --#define INIT_LIST_HEAD(ptr) do { \ -- (ptr)->next = (ptr); (ptr)->prev = (ptr); \ -+ -+/* Initialise a list head to an empty list */ -+#define YINIT_LIST_HEAD(p) \ -+do { \ -+ (p)->next = (p);\ -+ (p)->prev = (p); \ - } while (0) - --/* -- * Insert a new entry between two known consecutive entries. -- * -- * This is only for internal list manipulation where we know -- * the prev/next entries already! -- */ --static __inline__ void __list_add(struct list_head *new, -- struct list_head *prev, -- struct list_head *next) --{ -- next->prev = new; -- new->next = next; -- new->prev = prev; -- prev->next = new; --} - --/** -- * list_add - add a new entry -- * @new: new entry to be added -- * @head: list head to add it after -- * -- * Insert a new entry after the specified head. -- * This is good for implementing stacks. -- */ --static __inline__ void list_add(struct list_head *new, struct list_head *head) -+/* Add an element to a list */ -+static __inline__ void ylist_add(struct ylist_head *newEntry, -+ struct ylist_head *list) - { -- __list_add(new, head, head->next); --} -+ struct ylist_head *listNext = list->next; -+ -+ list->next = newEntry; -+ newEntry->prev = list; -+ newEntry->next = listNext; -+ listNext->prev = newEntry; - --/** -- * list_add_tail - add a new entry -- * @new: new entry to be added -- * @head: list head to add it before -- * -- * Insert a new entry before the specified head. -- * This is useful for implementing queues. -- */ --static __inline__ void list_add_tail(struct list_head *new, -- struct list_head *head) --{ -- __list_add(new, head->prev, head); - } - --/* -- * Delete a list entry by making the prev/next entries -- * point to each other. -- * -- * This is only for internal list manipulation where we know -- * the prev/next entries already! -- */ --static __inline__ void __list_del(struct list_head *prev, -- struct list_head *next) -+static __inline__ void ylist_add_tail(struct ylist_head *newEntry, -+ struct ylist_head *list) - { -- next->prev = prev; -- prev->next = next; -+ struct ylist_head *listPrev = list->prev; -+ -+ list->prev = newEntry; -+ newEntry->next = list; -+ newEntry->prev = listPrev; -+ listPrev->next = newEntry; -+ - } - --/** -- * list_del - deletes entry from list. -- * @entry: the element to delete from the list. -- * Note: list_empty on entry does not return true after this, the entry is -- * in an undefined state. -- */ --static __inline__ void list_del(struct list_head *entry) -+ -+/* Take an element out of its current list, with or without -+ * reinitialising the links.of the entry*/ -+static __inline__ void ylist_del(struct ylist_head *entry) - { -- __list_del(entry->prev, entry->next); -+ struct ylist_head *listNext = entry->next; -+ struct ylist_head *listPrev = entry->prev; -+ -+ listNext->prev = listPrev; -+ listPrev->next = listNext; -+ - } - --/** -- * list_del_init - deletes entry from list and reinitialize it. -- * @entry: the element to delete from the list. -- */ --static __inline__ void list_del_init(struct list_head *entry) -+static __inline__ void ylist_del_init(struct ylist_head *entry) - { -- __list_del(entry->prev, entry->next); -- INIT_LIST_HEAD(entry); -+ ylist_del(entry); -+ entry->next = entry->prev = entry; - } - --/** -- * list_empty - tests whether a list is empty -- * @head: the list to test. -- */ --static __inline__ int list_empty(struct list_head *head) -+ -+/* Test if the list is empty */ -+static __inline__ int ylist_empty(struct ylist_head *entry) - { -- return head->next == head; -+ return (entry->next == entry); - } - --/** -- * list_splice - join two lists -- * @list: the new list to add. -- * @head: the place to add it in the first list. -+ -+/* ylist_entry takes a pointer to a list entry and offsets it to that -+ * we can find a pointer to the object it is embedded in. - */ --static __inline__ void list_splice(struct list_head *list, -- struct list_head *head) --{ -- struct list_head *first = list->next; - -- if (first != list) { -- struct list_head *last = list->prev; -- struct list_head *at = head->next; -- -- first->prev = head; -- head->next = first; -- -- last->next = at; -- at->prev = last; -- } --} - --/** -- * list_entry - get the struct for this entry -- * @ptr: the &struct list_head pointer. -- * @type: the type of the struct this is embedded in. -- * @member: the name of the list_struct within the struct. -- */ --#define list_entry(ptr, type, member) \ -- ((type *)((char *)(ptr)-(unsigned long)(&((type *)0)->member))) -- --/** -- * list_for_each - iterate over a list -- * @pos: the &struct list_head to use as a loop counter. -- * @head: the head for your list. -- */ --#define list_for_each(pos, head) \ -- for (pos = (head)->next, prefetch(pos->next); pos != (head); \ -- pos = pos->next, prefetch(pos->next)) -- --/** -- * list_for_each_safe - iterate over a list safe against removal -- * of list entry -- * @pos: the &struct list_head to use as a loop counter. -- * @n: another &struct list_head to use as temporary storage -- * @head: the head for your list. -- */ --#define list_for_each_safe(pos, n, head) \ -- for (pos = (head)->next, n = pos->next; pos != (head); \ -- pos = n, n = pos->next) -+#define ylist_entry(entry, type, member) \ -+ ((type *)((char *)(entry)-(unsigned long)(&((type *)NULL)->member))) - --/* -- * File types -+ -+/* ylist_for_each and list_for_each_safe iterate over lists. -+ * ylist_for_each_safe uses temporary storage to make the list delete safe - */ -+ -+#define ylist_for_each(itervar, list) \ -+ for (itervar = (list)->next; itervar != (list); itervar = itervar->next) -+ -+#define ylist_for_each_safe(itervar, saveVar, list) \ -+ for (itervar = (list)->next, saveVar = (list)->next->next; \ -+ itervar != (list); itervar = saveVar, saveVar = saveVar->next) -+ -+ -+#if !(defined __KERNEL__) -+ -+ -+#ifndef WIN32 -+#include -+#endif -+ -+ -+#ifdef CONFIG_YAFFS_PROVIDE_DEFS -+/* File types */ -+ -+ - #define DT_UNKNOWN 0 - #define DT_FIFO 1 - #define DT_CHR 2 -@@ -212,6 +153,7 @@ static __inline__ void list_splice(struc - #define DT_SOCK 12 - #define DT_WHT 14 - -+ - #ifndef WIN32 - #include - #endif -@@ -227,10 +169,6 @@ static __inline__ void list_splice(struc - #define ATTR_ATIME 16 - #define ATTR_MTIME 32 - #define ATTR_CTIME 64 --#define ATTR_ATIME_SET 128 --#define ATTR_MTIME_SET 256 --#define ATTR_FORCE 512 /* Not a change, but a change it */ --#define ATTR_ATTR_FLAG 1024 - - struct iattr { - unsigned int ia_valid; -@@ -244,21 +182,15 @@ struct iattr { - unsigned int ia_attr_flags; - }; - --#define KERN_DEBUG -+#endif - - #else - --#ifndef WIN32 - #include --#include - #include - #include --#endif - - #endif - --#if defined WIN32 --#undef new --#endif - - #endif ---- a/fs/yaffs2/Kconfig -+++ b/fs/yaffs2/Kconfig -@@ -5,7 +5,7 @@ - config YAFFS_FS - tristate "YAFFS2 file system support" - default n -- depends on MTD -+ depends on MTD_BLOCK - select YAFFS_YAFFS1 - select YAFFS_YAFFS2 - help -@@ -43,7 +43,8 @@ config YAFFS_9BYTE_TAGS - format that you need to continue to support. New data written - also uses the older-style format. Note: Use of this option - generally requires that MTD's oob layout be adjusted to use the -- older-style format. See notes on tags formats and MTD versions. -+ older-style format. See notes on tags formats and MTD versions -+ in yaffs_mtdif1.c. - - If unsure, say N. - -@@ -109,26 +110,6 @@ config YAFFS_DISABLE_LAZY_LOAD - - If unsure, say N. - --config YAFFS_CHECKPOINT_RESERVED_BLOCKS -- int "Reserved blocks for checkpointing" -- depends on YAFFS_YAFFS2 -- default 10 -- help -- Give the number of Blocks to reserve for checkpointing. -- Checkpointing saves the state at unmount so that mounting is -- much faster as a scan of all the flash to regenerate this state -- is not needed. These Blocks are reserved per partition, so if -- you have very small partitions the default (10) may be a mess -- for you. You can set this value to 0, but that does not mean -- checkpointing is disabled at all. There only won't be any -- specially reserved blocks for checkpointing, so if there is -- enough free space on the filesystem, it will be used for -- checkpointing. -- -- If unsure, leave at default (10), but don't wonder if there are -- always 2MB used on your large page device partition (10 x 2k -- pagesize). When using small partitions or when being very small -- on space, you probably want to set this to zero. - - config YAFFS_DISABLE_WIDE_TNODES - bool "Turn off wide tnodes" ---- a/fs/yaffs2/Makefile -+++ b/fs/yaffs2/Makefile -@@ -5,7 +5,6 @@ - obj-$(CONFIG_YAFFS_FS) += yaffs.o - - yaffs-y := yaffs_ecc.o yaffs_fs.o yaffs_guts.o yaffs_checkptrw.o --yaffs-y += yaffs_packedtags2.o yaffs_nand.o yaffs_qsort.o -+yaffs-y += yaffs_packedtags1.o yaffs_packedtags2.o yaffs_nand.o yaffs_qsort.o - yaffs-y += yaffs_tagscompat.o yaffs_tagsvalidity.o --yaffs-y += yaffs_mtdif1.o yaffs_packedtags1.o --yaffs-y += yaffs_mtdif.o yaffs_mtdif2.o -+yaffs-y += yaffs_mtdif.o yaffs_mtdif1.o yaffs_mtdif2.o ---- a/fs/yaffs2/moduleconfig.h -+++ b/fs/yaffs2/moduleconfig.h -@@ -27,12 +27,12 @@ - - /* Default: Not selected */ - /* Meaning: Yaffs does its own ECC, rather than using MTD ECC */ --//#define CONFIG_YAFFS_DOES_ECC -+/* #define CONFIG_YAFFS_DOES_ECC */ - - /* Default: Not selected */ - /* Meaning: ECC byte order is 'wrong'. Only meaningful if */ - /* CONFIG_YAFFS_DOES_ECC is set */ --//#define CONFIG_YAFFS_ECC_WRONG_ORDER -+/* #define CONFIG_YAFFS_ECC_WRONG_ORDER */ - - /* Default: Selected */ - /* Meaning: Disables testing whether chunks are erased before writing to them*/ -@@ -54,11 +54,11 @@ that you need to continue to support. N - older-style format. - Note: Use of this option generally requires that MTD's oob layout be - adjusted to use the older-style format. See notes on tags formats and --MTD versions. -+MTD versions in yaffs_mtdif1.c. - */ - /* Default: Not selected */ - /* Meaning: Use older-style on-NAND data format with pageStatus byte */ --#define CONFIG_YAFFS_9BYTE_TAGS -+/* #define CONFIG_YAFFS_9BYTE_TAGS */ - - #endif /* YAFFS_OUT_OF_TREE */ - ---- a/fs/yaffs2/yaffs_checkptrw.c -+++ b/fs/yaffs2/yaffs_checkptrw.c -@@ -12,48 +12,43 @@ - */ - - const char *yaffs_checkptrw_c_version = -- "$Id: yaffs_checkptrw.c,v 1.14 2007-05-15 20:07:40 charles Exp $"; -+ "$Id: yaffs_checkptrw.c,v 1.18 2009-03-06 17:20:49 wookey Exp $"; - - - #include "yaffs_checkptrw.h" -- -+#include "yaffs_getblockinfo.h" - - static int yaffs_CheckpointSpaceOk(yaffs_Device *dev) - { -- - int blocksAvailable = dev->nErasedBlocks - dev->nReservedBlocks; - - T(YAFFS_TRACE_CHECKPOINT, - (TSTR("checkpt blocks available = %d" TENDSTR), - blocksAvailable)); - -- - return (blocksAvailable <= 0) ? 0 : 1; - } - - - static int yaffs_CheckpointErase(yaffs_Device *dev) - { -- - int i; - -- -- if(!dev->eraseBlockInNAND) -+ if (!dev->eraseBlockInNAND) - return 0; -- T(YAFFS_TRACE_CHECKPOINT,(TSTR("checking blocks %d to %d"TENDSTR), -- dev->internalStartBlock,dev->internalEndBlock)); -+ T(YAFFS_TRACE_CHECKPOINT, (TSTR("checking blocks %d to %d"TENDSTR), -+ dev->internalStartBlock, dev->internalEndBlock)); - -- for(i = dev->internalStartBlock; i <= dev->internalEndBlock; i++) { -- yaffs_BlockInfo *bi = yaffs_GetBlockInfo(dev,i); -- if(bi->blockState == YAFFS_BLOCK_STATE_CHECKPOINT){ -- T(YAFFS_TRACE_CHECKPOINT,(TSTR("erasing checkpt block %d"TENDSTR),i)); -- if(dev->eraseBlockInNAND(dev,i- dev->blockOffset /* realign */)){ -+ for (i = dev->internalStartBlock; i <= dev->internalEndBlock; i++) { -+ yaffs_BlockInfo *bi = yaffs_GetBlockInfo(dev, i); -+ if (bi->blockState == YAFFS_BLOCK_STATE_CHECKPOINT) { -+ T(YAFFS_TRACE_CHECKPOINT, (TSTR("erasing checkpt block %d"TENDSTR), i)); -+ if (dev->eraseBlockInNAND(dev, i - dev->blockOffset /* realign */)) { - bi->blockState = YAFFS_BLOCK_STATE_EMPTY; - dev->nErasedBlocks++; - dev->nFreeChunks += dev->nChunksPerBlock; -- } -- else { -- dev->markNANDBlockBad(dev,i); -+ } else { -+ dev->markNANDBlockBad(dev, i); - bi->blockState = YAFFS_BLOCK_STATE_DEAD; - } - } -@@ -71,23 +66,23 @@ static void yaffs_CheckpointFindNextEras - int blocksAvailable = dev->nErasedBlocks - dev->nReservedBlocks; - T(YAFFS_TRACE_CHECKPOINT, - (TSTR("allocating checkpt block: erased %d reserved %d avail %d next %d "TENDSTR), -- dev->nErasedBlocks,dev->nReservedBlocks,blocksAvailable,dev->checkpointNextBlock)); -+ dev->nErasedBlocks, dev->nReservedBlocks, blocksAvailable, dev->checkpointNextBlock)); - -- if(dev->checkpointNextBlock >= 0 && -- dev->checkpointNextBlock <= dev->internalEndBlock && -- blocksAvailable > 0){ -- -- for(i = dev->checkpointNextBlock; i <= dev->internalEndBlock; i++){ -- yaffs_BlockInfo *bi = yaffs_GetBlockInfo(dev,i); -- if(bi->blockState == YAFFS_BLOCK_STATE_EMPTY){ -+ if (dev->checkpointNextBlock >= 0 && -+ dev->checkpointNextBlock <= dev->internalEndBlock && -+ blocksAvailable > 0) { -+ -+ for (i = dev->checkpointNextBlock; i <= dev->internalEndBlock; i++) { -+ yaffs_BlockInfo *bi = yaffs_GetBlockInfo(dev, i); -+ if (bi->blockState == YAFFS_BLOCK_STATE_EMPTY) { - dev->checkpointNextBlock = i + 1; - dev->checkpointCurrentBlock = i; -- T(YAFFS_TRACE_CHECKPOINT,(TSTR("allocating checkpt block %d"TENDSTR),i)); -+ T(YAFFS_TRACE_CHECKPOINT, (TSTR("allocating checkpt block %d"TENDSTR), i)); - return; - } - } - } -- T(YAFFS_TRACE_CHECKPOINT,(TSTR("out of checkpt blocks"TENDSTR))); -+ T(YAFFS_TRACE_CHECKPOINT, (TSTR("out of checkpt blocks"TENDSTR))); - - dev->checkpointNextBlock = -1; - dev->checkpointCurrentBlock = -1; -@@ -98,30 +93,31 @@ static void yaffs_CheckpointFindNextChec - int i; - yaffs_ExtendedTags tags; - -- T(YAFFS_TRACE_CHECKPOINT,(TSTR("find next checkpt block: start: blocks %d next %d" TENDSTR), -+ T(YAFFS_TRACE_CHECKPOINT, (TSTR("find next checkpt block: start: blocks %d next %d" TENDSTR), - dev->blocksInCheckpoint, dev->checkpointNextBlock)); - -- if(dev->blocksInCheckpoint < dev->checkpointMaxBlocks) -- for(i = dev->checkpointNextBlock; i <= dev->internalEndBlock; i++){ -+ if (dev->blocksInCheckpoint < dev->checkpointMaxBlocks) -+ for (i = dev->checkpointNextBlock; i <= dev->internalEndBlock; i++) { - int chunk = i * dev->nChunksPerBlock; - int realignedChunk = chunk - dev->chunkOffset; - -- dev->readChunkWithTagsFromNAND(dev,realignedChunk,NULL,&tags); -- T(YAFFS_TRACE_CHECKPOINT,(TSTR("find next checkpt block: search: block %d oid %d seq %d eccr %d" TENDSTR), -- i, tags.objectId,tags.sequenceNumber,tags.eccResult)); -+ dev->readChunkWithTagsFromNAND(dev, realignedChunk, -+ NULL, &tags); -+ T(YAFFS_TRACE_CHECKPOINT, (TSTR("find next checkpt block: search: block %d oid %d seq %d eccr %d" TENDSTR), -+ i, tags.objectId, tags.sequenceNumber, tags.eccResult)); - -- if(tags.sequenceNumber == YAFFS_SEQUENCE_CHECKPOINT_DATA){ -+ if (tags.sequenceNumber == YAFFS_SEQUENCE_CHECKPOINT_DATA) { - /* Right kind of block */ - dev->checkpointNextBlock = tags.objectId; - dev->checkpointCurrentBlock = i; - dev->checkpointBlockList[dev->blocksInCheckpoint] = i; - dev->blocksInCheckpoint++; -- T(YAFFS_TRACE_CHECKPOINT,(TSTR("found checkpt block %d"TENDSTR),i)); -+ T(YAFFS_TRACE_CHECKPOINT, (TSTR("found checkpt block %d"TENDSTR), i)); - return; - } - } - -- T(YAFFS_TRACE_CHECKPOINT,(TSTR("found no more checkpt blocks"TENDSTR))); -+ T(YAFFS_TRACE_CHECKPOINT, (TSTR("found no more checkpt blocks"TENDSTR))); - - dev->checkpointNextBlock = -1; - dev->checkpointCurrentBlock = -1; -@@ -133,17 +129,17 @@ int yaffs_CheckpointOpen(yaffs_Device *d - - /* Got the functions we need? */ - if (!dev->writeChunkWithTagsToNAND || -- !dev->readChunkWithTagsFromNAND || -- !dev->eraseBlockInNAND || -- !dev->markNANDBlockBad) -+ !dev->readChunkWithTagsFromNAND || -+ !dev->eraseBlockInNAND || -+ !dev->markNANDBlockBad) - return 0; - -- if(forWriting && !yaffs_CheckpointSpaceOk(dev)) -+ if (forWriting && !yaffs_CheckpointSpaceOk(dev)) - return 0; - -- if(!dev->checkpointBuffer) -- dev->checkpointBuffer = YMALLOC_DMA(dev->nDataBytesPerChunk); -- if(!dev->checkpointBuffer) -+ if (!dev->checkpointBuffer) -+ dev->checkpointBuffer = YMALLOC_DMA(dev->totalBytesPerChunk); -+ if (!dev->checkpointBuffer) - return 0; - - -@@ -159,12 +155,10 @@ int yaffs_CheckpointOpen(yaffs_Device *d - dev->checkpointNextBlock = dev->internalStartBlock; - - /* Erase all the blocks in the checkpoint area */ -- if(forWriting){ -- memset(dev->checkpointBuffer,0,dev->nDataBytesPerChunk); -+ if (forWriting) { -+ memset(dev->checkpointBuffer, 0, dev->nDataBytesPerChunk); - dev->checkpointByteOffset = 0; - return yaffs_CheckpointErase(dev); -- -- - } else { - int i; - /* Set to a value that will kick off a read */ -@@ -174,7 +168,7 @@ int yaffs_CheckpointOpen(yaffs_Device *d - dev->blocksInCheckpoint = 0; - dev->checkpointMaxBlocks = (dev->internalEndBlock - dev->internalStartBlock)/16 + 2; - dev->checkpointBlockList = YMALLOC(sizeof(int) * dev->checkpointMaxBlocks); -- for(i = 0; i < dev->checkpointMaxBlocks; i++) -+ for (i = 0; i < dev->checkpointMaxBlocks; i++) - dev->checkpointBlockList[i] = -1; - } - -@@ -191,18 +185,17 @@ int yaffs_GetCheckpointSum(yaffs_Device - - static int yaffs_CheckpointFlushBuffer(yaffs_Device *dev) - { -- - int chunk; - int realignedChunk; - - yaffs_ExtendedTags tags; - -- if(dev->checkpointCurrentBlock < 0){ -+ if (dev->checkpointCurrentBlock < 0) { - yaffs_CheckpointFindNextErasedBlock(dev); - dev->checkpointCurrentChunk = 0; - } - -- if(dev->checkpointCurrentBlock < 0) -+ if (dev->checkpointCurrentBlock < 0) - return 0; - - tags.chunkDeleted = 0; -@@ -210,10 +203,10 @@ static int yaffs_CheckpointFlushBuffer(y - tags.chunkId = dev->checkpointPageSequence + 1; - tags.sequenceNumber = YAFFS_SEQUENCE_CHECKPOINT_DATA; - tags.byteCount = dev->nDataBytesPerChunk; -- if(dev->checkpointCurrentChunk == 0){ -+ if (dev->checkpointCurrentChunk == 0) { - /* First chunk we write for the block? Set block state to - checkpoint */ -- yaffs_BlockInfo *bi = yaffs_GetBlockInfo(dev,dev->checkpointCurrentBlock); -+ yaffs_BlockInfo *bi = yaffs_GetBlockInfo(dev, dev->checkpointCurrentBlock); - bi->blockState = YAFFS_BLOCK_STATE_CHECKPOINT; - dev->blocksInCheckpoint++; - } -@@ -221,28 +214,29 @@ static int yaffs_CheckpointFlushBuffer(y - chunk = dev->checkpointCurrentBlock * dev->nChunksPerBlock + dev->checkpointCurrentChunk; - - -- T(YAFFS_TRACE_CHECKPOINT,(TSTR("checkpoint wite buffer nand %d(%d:%d) objid %d chId %d" TENDSTR), -- chunk, dev->checkpointCurrentBlock, dev->checkpointCurrentChunk,tags.objectId,tags.chunkId)); -+ T(YAFFS_TRACE_CHECKPOINT, (TSTR("checkpoint wite buffer nand %d(%d:%d) objid %d chId %d" TENDSTR), -+ chunk, dev->checkpointCurrentBlock, dev->checkpointCurrentChunk, tags.objectId, tags.chunkId)); - - realignedChunk = chunk - dev->chunkOffset; - -- dev->writeChunkWithTagsToNAND(dev,realignedChunk,dev->checkpointBuffer,&tags); -+ dev->writeChunkWithTagsToNAND(dev, realignedChunk, -+ dev->checkpointBuffer, &tags); - dev->checkpointByteOffset = 0; - dev->checkpointPageSequence++; - dev->checkpointCurrentChunk++; -- if(dev->checkpointCurrentChunk >= dev->nChunksPerBlock){ -+ if (dev->checkpointCurrentChunk >= dev->nChunksPerBlock) { - dev->checkpointCurrentChunk = 0; - dev->checkpointCurrentBlock = -1; - } -- memset(dev->checkpointBuffer,0,dev->nDataBytesPerChunk); -+ memset(dev->checkpointBuffer, 0, dev->nDataBytesPerChunk); - - return 1; - } - - --int yaffs_CheckpointWrite(yaffs_Device *dev,const void *data, int nBytes) -+int yaffs_CheckpointWrite(yaffs_Device *dev, const void *data, int nBytes) - { -- int i=0; -+ int i = 0; - int ok = 1; - - -@@ -250,17 +244,14 @@ int yaffs_CheckpointWrite(yaffs_Device * - - - -- if(!dev->checkpointBuffer) -+ if (!dev->checkpointBuffer) - return 0; - -- if(!dev->checkpointOpenForWrite) -+ if (!dev->checkpointOpenForWrite) - return -1; - -- while(i < nBytes && ok) { -- -- -- -- dev->checkpointBuffer[dev->checkpointByteOffset] = *dataBytes ; -+ while (i < nBytes && ok) { -+ dev->checkpointBuffer[dev->checkpointByteOffset] = *dataBytes; - dev->checkpointSum += *dataBytes; - dev->checkpointXor ^= *dataBytes; - -@@ -270,18 +261,17 @@ int yaffs_CheckpointWrite(yaffs_Device * - dev->checkpointByteCount++; - - -- if(dev->checkpointByteOffset < 0 || -+ if (dev->checkpointByteOffset < 0 || - dev->checkpointByteOffset >= dev->nDataBytesPerChunk) - ok = yaffs_CheckpointFlushBuffer(dev); -- - } - -- return i; -+ return i; - } - - int yaffs_CheckpointRead(yaffs_Device *dev, void *data, int nBytes) - { -- int i=0; -+ int i = 0; - int ok = 1; - yaffs_ExtendedTags tags; - -@@ -291,52 +281,54 @@ int yaffs_CheckpointRead(yaffs_Device *d - - __u8 *dataBytes = (__u8 *)data; - -- if(!dev->checkpointBuffer) -+ if (!dev->checkpointBuffer) - return 0; - -- if(dev->checkpointOpenForWrite) -+ if (dev->checkpointOpenForWrite) - return -1; - -- while(i < nBytes && ok) { -+ while (i < nBytes && ok) { - - -- if(dev->checkpointByteOffset < 0 || -- dev->checkpointByteOffset >= dev->nDataBytesPerChunk) { -+ if (dev->checkpointByteOffset < 0 || -+ dev->checkpointByteOffset >= dev->nDataBytesPerChunk) { - -- if(dev->checkpointCurrentBlock < 0){ -+ if (dev->checkpointCurrentBlock < 0) { - yaffs_CheckpointFindNextCheckpointBlock(dev); - dev->checkpointCurrentChunk = 0; - } - -- if(dev->checkpointCurrentBlock < 0) -+ if (dev->checkpointCurrentBlock < 0) - ok = 0; - else { -- -- chunk = dev->checkpointCurrentBlock * dev->nChunksPerBlock + -- dev->checkpointCurrentChunk; -+ chunk = dev->checkpointCurrentBlock * -+ dev->nChunksPerBlock + -+ dev->checkpointCurrentChunk; - - realignedChunk = chunk - dev->chunkOffset; - -- /* read in the next chunk */ -- /* printf("read checkpoint page %d\n",dev->checkpointPage); */ -- dev->readChunkWithTagsFromNAND(dev, realignedChunk, -- dev->checkpointBuffer, -- &tags); -- -- if(tags.chunkId != (dev->checkpointPageSequence + 1) || -- tags.sequenceNumber != YAFFS_SEQUENCE_CHECKPOINT_DATA) -- ok = 0; -+ /* read in the next chunk */ -+ /* printf("read checkpoint page %d\n",dev->checkpointPage); */ -+ dev->readChunkWithTagsFromNAND(dev, -+ realignedChunk, -+ dev->checkpointBuffer, -+ &tags); -+ -+ if (tags.chunkId != (dev->checkpointPageSequence + 1) || -+ tags.eccResult > YAFFS_ECC_RESULT_FIXED || -+ tags.sequenceNumber != YAFFS_SEQUENCE_CHECKPOINT_DATA) -+ ok = 0; - - dev->checkpointByteOffset = 0; - dev->checkpointPageSequence++; - dev->checkpointCurrentChunk++; - -- if(dev->checkpointCurrentChunk >= dev->nChunksPerBlock) -+ if (dev->checkpointCurrentChunk >= dev->nChunksPerBlock) - dev->checkpointCurrentBlock = -1; - } - } - -- if(ok){ -+ if (ok) { - *dataBytes = dev->checkpointBuffer[dev->checkpointByteOffset]; - dev->checkpointSum += *dataBytes; - dev->checkpointXor ^= *dataBytes; -@@ -353,17 +345,17 @@ int yaffs_CheckpointRead(yaffs_Device *d - int yaffs_CheckpointClose(yaffs_Device *dev) - { - -- if(dev->checkpointOpenForWrite){ -- if(dev->checkpointByteOffset != 0) -+ if (dev->checkpointOpenForWrite) { -+ if (dev->checkpointByteOffset != 0) - yaffs_CheckpointFlushBuffer(dev); - } else { - int i; -- for(i = 0; i < dev->blocksInCheckpoint && dev->checkpointBlockList[i] >= 0; i++){ -- yaffs_BlockInfo *bi = yaffs_GetBlockInfo(dev,dev->checkpointBlockList[i]); -- if(bi->blockState == YAFFS_BLOCK_STATE_EMPTY) -+ for (i = 0; i < dev->blocksInCheckpoint && dev->checkpointBlockList[i] >= 0; i++) { -+ yaffs_BlockInfo *bi = yaffs_GetBlockInfo(dev, dev->checkpointBlockList[i]); -+ if (bi->blockState == YAFFS_BLOCK_STATE_EMPTY) - bi->blockState = YAFFS_BLOCK_STATE_CHECKPOINT; - else { -- // Todo this looks odd... -+ /* Todo this looks odd... */ - } - } - YFREE(dev->checkpointBlockList); -@@ -374,27 +366,25 @@ int yaffs_CheckpointClose(yaffs_Device * - dev->nErasedBlocks -= dev->blocksInCheckpoint; - - -- T(YAFFS_TRACE_CHECKPOINT,(TSTR("checkpoint byte count %d" TENDSTR), -+ T(YAFFS_TRACE_CHECKPOINT, (TSTR("checkpoint byte count %d" TENDSTR), - dev->checkpointByteCount)); - -- if(dev->checkpointBuffer){ -+ if (dev->checkpointBuffer) { - /* free the buffer */ - YFREE(dev->checkpointBuffer); - dev->checkpointBuffer = NULL; - return 1; -- } -- else -+ } else - return 0; -- - } - - int yaffs_CheckpointInvalidateStream(yaffs_Device *dev) - { - /* Erase the first checksum block */ - -- T(YAFFS_TRACE_CHECKPOINT,(TSTR("checkpoint invalidate"TENDSTR))); -+ T(YAFFS_TRACE_CHECKPOINT, (TSTR("checkpoint invalidate"TENDSTR))); - -- if(!yaffs_CheckpointSpaceOk(dev)) -+ if (!yaffs_CheckpointSpaceOk(dev)) - return 0; - - return yaffs_CheckpointErase(dev); ---- a/fs/yaffs2/yaffs_checkptrw.h -+++ b/fs/yaffs2/yaffs_checkptrw.h -@@ -20,9 +20,9 @@ - - int yaffs_CheckpointOpen(yaffs_Device *dev, int forWriting); - --int yaffs_CheckpointWrite(yaffs_Device *dev,const void *data, int nBytes); -+int yaffs_CheckpointWrite(yaffs_Device *dev, const void *data, int nBytes); - --int yaffs_CheckpointRead(yaffs_Device *dev,void *data, int nBytes); -+int yaffs_CheckpointRead(yaffs_Device *dev, void *data, int nBytes); - - int yaffs_GetCheckpointSum(yaffs_Device *dev, __u32 *sum); - ---- a/fs/yaffs2/yaffs_ecc.c -+++ b/fs/yaffs2/yaffs_ecc.c -@@ -29,7 +29,7 @@ - */ - - const char *yaffs_ecc_c_version = -- "$Id: yaffs_ecc.c,v 1.9 2007-02-14 01:09:06 wookey Exp $"; -+ "$Id: yaffs_ecc.c,v 1.11 2009-03-06 17:20:50 wookey Exp $"; - - #include "yportenv.h" - -@@ -109,12 +109,10 @@ void yaffs_ECCCalculate(const unsigned c - b = column_parity_table[*data++]; - col_parity ^= b; - -- if (b & 0x01) // odd number of bits in the byte -- { -+ if (b & 0x01) { /* odd number of bits in the byte */ - line_parity ^= i; - line_parity_prime ^= ~i; - } -- - } - - ecc[2] = (~col_parity) | 0x03; -@@ -158,7 +156,7 @@ void yaffs_ECCCalculate(const unsigned c - ecc[0] = ~t; - - #ifdef CONFIG_YAFFS_ECC_WRONG_ORDER -- // Swap the bytes into the wrong order -+ /* Swap the bytes into the wrong order */ - t = ecc[0]; - ecc[0] = ecc[1]; - ecc[1] = t; -@@ -189,7 +187,7 @@ int yaffs_ECCCorrect(unsigned char *data - unsigned bit; - - #ifdef CONFIG_YAFFS_ECC_WRONG_ORDER -- // swap the bytes to correct for the wrong order -+ /* swap the bytes to correct for the wrong order */ - unsigned char t; - - t = d0; -@@ -251,7 +249,7 @@ int yaffs_ECCCorrect(unsigned char *data - * ECCxxxOther does ECC calcs on arbitrary n bytes of data - */ - void yaffs_ECCCalculateOther(const unsigned char *data, unsigned nBytes, -- yaffs_ECCOther * eccOther) -+ yaffs_ECCOther *eccOther) - { - unsigned int i; - -@@ -278,8 +276,8 @@ void yaffs_ECCCalculateOther(const unsig - } - - int yaffs_ECCCorrectOther(unsigned char *data, unsigned nBytes, -- yaffs_ECCOther * read_ecc, -- const yaffs_ECCOther * test_ecc) -+ yaffs_ECCOther *read_ecc, -+ const yaffs_ECCOther *test_ecc) - { - unsigned char cDelta; /* column parity delta */ - unsigned lDelta; /* line parity delta */ -@@ -294,8 +292,7 @@ int yaffs_ECCCorrectOther(unsigned char - return 0; /* no error */ - - if (lDelta == ~lDeltaPrime && -- (((cDelta ^ (cDelta >> 1)) & 0x15) == 0x15)) -- { -+ (((cDelta ^ (cDelta >> 1)) & 0x15) == 0x15)) { - /* Single bit (recoverable) error in data */ - - bit = 0; -@@ -307,7 +304,7 @@ int yaffs_ECCCorrectOther(unsigned char - if (cDelta & 0x02) - bit |= 0x01; - -- if(lDelta >= nBytes) -+ if (lDelta >= nBytes) - return -1; - - data[lDelta] ^= (1 << bit); -@@ -316,7 +313,7 @@ int yaffs_ECCCorrectOther(unsigned char - } - - if ((yaffs_CountBits32(lDelta) + yaffs_CountBits32(lDeltaPrime) + -- yaffs_CountBits(cDelta)) == 1) { -+ yaffs_CountBits(cDelta)) == 1) { - /* Reccoverable error in ecc */ - - *read_ecc = *test_ecc; -@@ -326,6 +323,4 @@ int yaffs_ECCCorrectOther(unsigned char - /* Unrecoverable error */ - - return -1; -- - } -- ---- a/fs/yaffs2/yaffs_ecc.h -+++ b/fs/yaffs2/yaffs_ecc.h -@@ -13,15 +13,15 @@ - * Note: Only YAFFS headers are LGPL, YAFFS C code is covered by GPL. - */ - -- /* -- * This code implements the ECC algorithm used in SmartMedia. -- * -- * The ECC comprises 22 bits of parity information and is stuffed into 3 bytes. -- * The two unused bit are set to 1. -- * The ECC can correct single bit errors in a 256-byte page of data. Thus, two such ECC -- * blocks are used on a 512-byte NAND page. -- * -- */ -+/* -+ * This code implements the ECC algorithm used in SmartMedia. -+ * -+ * The ECC comprises 22 bits of parity information and is stuffed into 3 bytes. -+ * The two unused bit are set to 1. -+ * The ECC can correct single bit errors in a 256-byte page of data. Thus, two such ECC -+ * blocks are used on a 512-byte NAND page. -+ * -+ */ - - #ifndef __YAFFS_ECC_H__ - #define __YAFFS_ECC_H__ -@@ -34,11 +34,11 @@ typedef struct { - - void yaffs_ECCCalculate(const unsigned char *data, unsigned char *ecc); - int yaffs_ECCCorrect(unsigned char *data, unsigned char *read_ecc, -- const unsigned char *test_ecc); -+ const unsigned char *test_ecc); - - void yaffs_ECCCalculateOther(const unsigned char *data, unsigned nBytes, -- yaffs_ECCOther * ecc); -+ yaffs_ECCOther *ecc); - int yaffs_ECCCorrectOther(unsigned char *data, unsigned nBytes, -- yaffs_ECCOther * read_ecc, -- const yaffs_ECCOther * test_ecc); -+ yaffs_ECCOther *read_ecc, -+ const yaffs_ECCOther *test_ecc); - #endif ---- a/fs/yaffs2/yaffs_fs.c -+++ b/fs/yaffs2/yaffs_fs.c -@@ -1,7 +1,7 @@ - /* - * YAFFS: Yet Another Flash File System. A NAND-flash specific file system. - * -- * Copyright (C) 2002-2007 Aleph One Ltd. -+ * Copyright (C) 2002-2009 Aleph One Ltd. - * for Toby Churchill Ltd and Brightstar Engineering - * - * Created by Charles Manning -@@ -32,18 +32,17 @@ - */ - - const char *yaffs_fs_c_version = -- "$Id: yaffs_fs.c,v 1.63 2007-09-19 20:35:40 imcd Exp $"; -+ "$Id: yaffs_fs.c,v 1.79 2009-03-17 01:12:00 wookey Exp $"; - extern const char *yaffs_guts_c_version; - - #include --#if (LINUX_VERSION_CODE < KERNEL_VERSION(2,6,19)) -+#if (LINUX_VERSION_CODE < KERNEL_VERSION(2, 6, 19)) - #include - #endif - #include - #include - #include - #include --#include - #include - #include - #include -@@ -53,10 +52,12 @@ extern const char *yaffs_guts_c_version; - #include - #include - --#if (LINUX_VERSION_CODE > KERNEL_VERSION(2,5,0)) -+#include "asm/div64.h" -+ -+#if (LINUX_VERSION_CODE > KERNEL_VERSION(2, 5, 0)) - - #include /* Added NCB 15-8-2003 */ --#include -+#include - #define UnlockPage(p) unlock_page(p) - #define Page_Uptodate(page) test_bit(PG_uptodate, &(page)->flags) - -@@ -69,22 +70,45 @@ extern const char *yaffs_guts_c_version; - #define BDEVNAME_SIZE 0 - #define yaffs_devname(sb, buf) kdevname(sb->s_dev) - --#if (LINUX_VERSION_CODE < KERNEL_VERSION(2,5,0)) -+#if (LINUX_VERSION_CODE < KERNEL_VERSION(2, 5, 0)) - /* added NCB 26/5/2006 for 2.4.25-vrs2-tcl1 kernel */ - #define __user - #endif - - #endif - --#if (LINUX_VERSION_CODE > KERNEL_VERSION(2,6,17)) -+#if (LINUX_VERSION_CODE < KERNEL_VERSION(2, 6, 26)) -+#define YPROC_ROOT (&proc_root) -+#else -+#define YPROC_ROOT NULL -+#endif -+ -+#if (LINUX_VERSION_CODE > KERNEL_VERSION(2, 6, 17)) - #define WRITE_SIZE_STR "writesize" --#define WRITE_SIZE(mtd) (mtd)->writesize -+#define WRITE_SIZE(mtd) ((mtd)->writesize) - #else - #define WRITE_SIZE_STR "oobblock" --#define WRITE_SIZE(mtd) (mtd)->oobblock -+#define WRITE_SIZE(mtd) ((mtd)->oobblock) - #endif - --#include -+#if (LINUX_VERSION_CODE > KERNEL_VERSION(2, 6, 27)) -+#define YAFFS_USE_WRITE_BEGIN_END 1 -+#else -+#define YAFFS_USE_WRITE_BEGIN_END 0 -+#endif -+ -+#if (LINUX_VERSION_CODE > KERNEL_VERSION(2, 6, 28)) -+static uint32_t YCALCBLOCKS(uint64_t partition_size, uint32_t block_size) -+{ -+ uint64_t result = partition_size; -+ do_div(result, block_size); -+ return (uint32_t)result; -+} -+#else -+#define YCALCBLOCKS(s, b) ((s)/(b)) -+#endif -+ -+#include - - #include "yportenv.h" - #include "yaffs_guts.h" -@@ -96,28 +120,44 @@ extern const char *yaffs_guts_c_version; - - unsigned int yaffs_traceMask = YAFFS_TRACE_BAD_BLOCKS; - unsigned int yaffs_wr_attempts = YAFFS_WR_ATTEMPTS; -+unsigned int yaffs_auto_checkpoint = 1; - - /* Module Parameters */ --#if (LINUX_VERSION_CODE > KERNEL_VERSION(2,5,0)) --module_param(yaffs_traceMask,uint,0644); --module_param(yaffs_wr_attempts,uint,0644); -+#if (LINUX_VERSION_CODE > KERNEL_VERSION(2, 5, 0)) -+module_param(yaffs_traceMask, uint, 0644); -+module_param(yaffs_wr_attempts, uint, 0644); -+module_param(yaffs_auto_checkpoint, uint, 0644); -+#else -+MODULE_PARM(yaffs_traceMask, "i"); -+MODULE_PARM(yaffs_wr_attempts, "i"); -+MODULE_PARM(yaffs_auto_checkpoint, "i"); -+#endif -+ -+#if (LINUX_VERSION_CODE < KERNEL_VERSION(2, 6, 25)) -+/* use iget and read_inode */ -+#define Y_IGET(sb, inum) iget((sb), (inum)) -+static void yaffs_read_inode(struct inode *inode); -+ - #else --MODULE_PARM(yaffs_traceMask,"i"); --MODULE_PARM(yaffs_wr_attempts,"i"); -+/* Call local equivalent */ -+#define YAFFS_USE_OWN_IGET -+#define Y_IGET(sb, inum) yaffs_iget((sb), (inum)) -+ -+static struct inode *yaffs_iget(struct super_block *sb, unsigned long ino); - #endif - - /*#define T(x) printk x */ - --#if (LINUX_VERSION_CODE > KERNEL_VERSION(2,6,18)) --#define yaffs_InodeToObjectLV(iptr) (iptr)->i_private -+#if (LINUX_VERSION_CODE > KERNEL_VERSION(2, 6, 18)) -+#define yaffs_InodeToObjectLV(iptr) ((iptr)->i_private) - #else --#define yaffs_InodeToObjectLV(iptr) (iptr)->u.generic_ip -+#define yaffs_InodeToObjectLV(iptr) ((iptr)->u.generic_ip) - #endif - - #define yaffs_InodeToObject(iptr) ((yaffs_Object *)(yaffs_InodeToObjectLV(iptr))) - #define yaffs_DentryToObject(dptr) yaffs_InodeToObject((dptr)->d_inode) - --#if (LINUX_VERSION_CODE > KERNEL_VERSION(2,5,0)) -+#if (LINUX_VERSION_CODE > KERNEL_VERSION(2, 5, 0)) - #define yaffs_SuperToDevice(sb) ((yaffs_Device *)sb->s_fs_info) - #else - #define yaffs_SuperToDevice(sb) ((yaffs_Device *)sb->u.generic_sbp) -@@ -126,47 +166,49 @@ MODULE_PARM(yaffs_wr_attempts,"i"); - static void yaffs_put_super(struct super_block *sb); - - static ssize_t yaffs_file_write(struct file *f, const char *buf, size_t n, -- loff_t * pos); -+ loff_t *pos); -+static ssize_t yaffs_hold_space(struct file *f); -+static void yaffs_release_space(struct file *f); - --#if (LINUX_VERSION_CODE > KERNEL_VERSION(2,6,17)) -+#if (LINUX_VERSION_CODE > KERNEL_VERSION(2, 6, 17)) - static int yaffs_file_flush(struct file *file, fl_owner_t id); - #else - static int yaffs_file_flush(struct file *file); - #endif - - static int yaffs_sync_object(struct file *file, struct dentry *dentry, -- int datasync); -+ int datasync); - - static int yaffs_readdir(struct file *f, void *dirent, filldir_t filldir); - --#if (LINUX_VERSION_CODE > KERNEL_VERSION(2,5,0)) -+#if (LINUX_VERSION_CODE > KERNEL_VERSION(2, 5, 0)) - static int yaffs_create(struct inode *dir, struct dentry *dentry, int mode, - struct nameidata *n); - static struct dentry *yaffs_lookup(struct inode *dir, struct dentry *dentry, -- struct nameidata *n); -+ struct nameidata *n); - #else - static int yaffs_create(struct inode *dir, struct dentry *dentry, int mode); - static struct dentry *yaffs_lookup(struct inode *dir, struct dentry *dentry); - #endif - static int yaffs_link(struct dentry *old_dentry, struct inode *dir, -- struct dentry *dentry); -+ struct dentry *dentry); - static int yaffs_unlink(struct inode *dir, struct dentry *dentry); - static int yaffs_symlink(struct inode *dir, struct dentry *dentry, -- const char *symname); -+ const char *symname); - static int yaffs_mkdir(struct inode *dir, struct dentry *dentry, int mode); - --#if (LINUX_VERSION_CODE > KERNEL_VERSION(2,5,0)) -+#if (LINUX_VERSION_CODE > KERNEL_VERSION(2, 5, 0)) - static int yaffs_mknod(struct inode *dir, struct dentry *dentry, int mode, -- dev_t dev); -+ dev_t dev); - #else - static int yaffs_mknod(struct inode *dir, struct dentry *dentry, int mode, -- int dev); -+ int dev); - #endif - static int yaffs_rename(struct inode *old_dir, struct dentry *old_dentry, - struct inode *new_dir, struct dentry *new_dentry); - static int yaffs_setattr(struct dentry *dentry, struct iattr *attr); - --#if (LINUX_VERSION_CODE > KERNEL_VERSION(2,6,17)) -+#if (LINUX_VERSION_CODE > KERNEL_VERSION(2, 6, 17)) - static int yaffs_sync_fs(struct super_block *sb, int wait); - static void yaffs_write_super(struct super_block *sb); - #else -@@ -174,33 +216,47 @@ static int yaffs_sync_fs(struct super_bl - static int yaffs_write_super(struct super_block *sb); - #endif - --#if (LINUX_VERSION_CODE > KERNEL_VERSION(2,6,17)) -+#if (LINUX_VERSION_CODE > KERNEL_VERSION(2, 6, 17)) - static int yaffs_statfs(struct dentry *dentry, struct kstatfs *buf); --#elif (LINUX_VERSION_CODE > KERNEL_VERSION(2,5,0)) -+#elif (LINUX_VERSION_CODE > KERNEL_VERSION(2, 5, 0)) - static int yaffs_statfs(struct super_block *sb, struct kstatfs *buf); - #else - static int yaffs_statfs(struct super_block *sb, struct statfs *buf); - #endif --static void yaffs_read_inode(struct inode *inode); - -+#ifdef YAFFS_HAS_PUT_INODE - static void yaffs_put_inode(struct inode *inode); -+#endif -+ - static void yaffs_delete_inode(struct inode *); - static void yaffs_clear_inode(struct inode *); - - static int yaffs_readpage(struct file *file, struct page *page); --#if (LINUX_VERSION_CODE > KERNEL_VERSION(2,5,0)) -+#if (LINUX_VERSION_CODE > KERNEL_VERSION(2, 5, 0)) - static int yaffs_writepage(struct page *page, struct writeback_control *wbc); - #else - static int yaffs_writepage(struct page *page); - #endif -+ -+ -+#if (YAFFS_USE_WRITE_BEGIN_END != 0) -+static int yaffs_write_begin(struct file *filp, struct address_space *mapping, -+ loff_t pos, unsigned len, unsigned flags, -+ struct page **pagep, void **fsdata); -+static int yaffs_write_end(struct file *filp, struct address_space *mapping, -+ loff_t pos, unsigned len, unsigned copied, -+ struct page *pg, void *fsdadata); -+#else - static int yaffs_prepare_write(struct file *f, struct page *pg, -- unsigned offset, unsigned to); -+ unsigned offset, unsigned to); - static int yaffs_commit_write(struct file *f, struct page *pg, unsigned offset, -- unsigned to); -+ unsigned to); - --static int yaffs_readlink(struct dentry *dentry, char __user * buffer, -- int buflen); --#if (LINUX_VERSION_CODE > KERNEL_VERSION(2,6,13)) -+#endif -+ -+static int yaffs_readlink(struct dentry *dentry, char __user *buffer, -+ int buflen); -+#if (LINUX_VERSION_CODE > KERNEL_VERSION(2, 6, 13)) - static void *yaffs_follow_link(struct dentry *dentry, struct nameidata *nd); - #else - static int yaffs_follow_link(struct dentry *dentry, struct nameidata *nd); -@@ -209,12 +265,17 @@ static int yaffs_follow_link(struct dent - static struct address_space_operations yaffs_file_address_operations = { - .readpage = yaffs_readpage, - .writepage = yaffs_writepage, -+#if (YAFFS_USE_WRITE_BEGIN_END > 0) -+ .write_begin = yaffs_write_begin, -+ .write_end = yaffs_write_end, -+#else - .prepare_write = yaffs_prepare_write, - .commit_write = yaffs_commit_write, -+#endif - }; - --#if (LINUX_VERSION_CODE > KERNEL_VERSION(2,6,22)) --static struct file_operations yaffs_file_operations = { -+#if (LINUX_VERSION_CODE > KERNEL_VERSION(2, 6, 22)) -+static const struct file_operations yaffs_file_operations = { - .read = do_sync_read, - .write = do_sync_write, - .aio_read = generic_file_aio_read, -@@ -224,11 +285,12 @@ static struct file_operations yaffs_file - .fsync = yaffs_sync_object, - .splice_read = generic_file_splice_read, - .splice_write = generic_file_splice_write, -+ .llseek = generic_file_llseek, - }; - --#elif (LINUX_VERSION_CODE > KERNEL_VERSION(2,6,18)) -+#elif (LINUX_VERSION_CODE > KERNEL_VERSION(2, 6, 18)) - --static struct file_operations yaffs_file_operations = { -+static const struct file_operations yaffs_file_operations = { - .read = do_sync_read, - .write = do_sync_write, - .aio_read = generic_file_aio_read, -@@ -241,29 +303,29 @@ static struct file_operations yaffs_file - - #else - --static struct file_operations yaffs_file_operations = { -+static const struct file_operations yaffs_file_operations = { - .read = generic_file_read, - .write = generic_file_write, - .mmap = generic_file_mmap, - .flush = yaffs_file_flush, - .fsync = yaffs_sync_object, --#if (LINUX_VERSION_CODE > KERNEL_VERSION(2,5,0)) -+#if (LINUX_VERSION_CODE > KERNEL_VERSION(2, 5, 0)) - .sendfile = generic_file_sendfile, - #endif - }; - #endif - --static struct inode_operations yaffs_file_inode_operations = { -+static const struct inode_operations yaffs_file_inode_operations = { - .setattr = yaffs_setattr, - }; - --static struct inode_operations yaffs_symlink_inode_operations = { -+static const struct inode_operations yaffs_symlink_inode_operations = { - .readlink = yaffs_readlink, - .follow_link = yaffs_follow_link, - .setattr = yaffs_setattr, - }; - --static struct inode_operations yaffs_dir_inode_operations = { -+static const struct inode_operations yaffs_dir_inode_operations = { - .create = yaffs_create, - .lookup = yaffs_lookup, - .link = yaffs_link, -@@ -276,16 +338,21 @@ static struct inode_operations yaffs_dir - .setattr = yaffs_setattr, - }; - --static struct file_operations yaffs_dir_operations = { -+static const struct file_operations yaffs_dir_operations = { - .read = generic_read_dir, - .readdir = yaffs_readdir, - .fsync = yaffs_sync_object, - }; - --static struct super_operations yaffs_super_ops = { -+static const struct super_operations yaffs_super_ops = { - .statfs = yaffs_statfs, -+ -+#ifndef YAFFS_USE_OWN_IGET - .read_inode = yaffs_read_inode, -+#endif -+#ifdef YAFFS_HAS_PUT_INODE - .put_inode = yaffs_put_inode, -+#endif - .put_super = yaffs_put_super, - .delete_inode = yaffs_delete_inode, - .clear_inode = yaffs_clear_inode, -@@ -293,22 +360,21 @@ static struct super_operations yaffs_sup - .write_super = yaffs_write_super, - }; - --static void yaffs_GrossLock(yaffs_Device * dev) -+static void yaffs_GrossLock(yaffs_Device *dev) - { -- T(YAFFS_TRACE_OS, (KERN_DEBUG "yaffs locking\n")); -- -+ T(YAFFS_TRACE_OS, ("yaffs locking %p\n", current)); - down(&dev->grossLock); -+ T(YAFFS_TRACE_OS, ("yaffs locked %p\n", current)); - } - --static void yaffs_GrossUnlock(yaffs_Device * dev) -+static void yaffs_GrossUnlock(yaffs_Device *dev) - { -- T(YAFFS_TRACE_OS, (KERN_DEBUG "yaffs unlocking\n")); -+ T(YAFFS_TRACE_OS, ("yaffs unlocking %p\n", current)); - up(&dev->grossLock); -- - } - --static int yaffs_readlink(struct dentry *dentry, char __user * buffer, -- int buflen) -+static int yaffs_readlink(struct dentry *dentry, char __user *buffer, -+ int buflen) - { - unsigned char *alias; - int ret; -@@ -329,7 +395,7 @@ static int yaffs_readlink(struct dentry - return ret; - } - --#if (LINUX_VERSION_CODE > KERNEL_VERSION(2,6,13)) -+#if (LINUX_VERSION_CODE > KERNEL_VERSION(2, 6, 13)) - static void *yaffs_follow_link(struct dentry *dentry, struct nameidata *nd) - #else - static int yaffs_follow_link(struct dentry *dentry, struct nameidata *nd) -@@ -345,32 +411,31 @@ static int yaffs_follow_link(struct dent - - yaffs_GrossUnlock(dev); - -- if (!alias) -- { -+ if (!alias) { - ret = -ENOMEM; - goto out; -- } -+ } - - ret = vfs_follow_link(nd, alias); - kfree(alias); - out: --#if (LINUX_VERSION_CODE > KERNEL_VERSION(2,6,13)) -- return ERR_PTR (ret); -+#if (LINUX_VERSION_CODE > KERNEL_VERSION(2, 6, 13)) -+ return ERR_PTR(ret); - #else - return ret; - #endif - } - - struct inode *yaffs_get_inode(struct super_block *sb, int mode, int dev, -- yaffs_Object * obj); -+ yaffs_Object *obj); - - /* - * Lookup is used to find objects in the fs - */ --#if (LINUX_VERSION_CODE > KERNEL_VERSION(2,5,0)) -+#if (LINUX_VERSION_CODE > KERNEL_VERSION(2, 5, 0)) - - static struct dentry *yaffs_lookup(struct inode *dir, struct dentry *dentry, -- struct nameidata *n) -+ struct nameidata *n) - #else - static struct dentry *yaffs_lookup(struct inode *dir, struct dentry *dentry) - #endif -@@ -383,12 +448,11 @@ static struct dentry *yaffs_lookup(struc - yaffs_GrossLock(dev); - - T(YAFFS_TRACE_OS, -- (KERN_DEBUG "yaffs_lookup for %d:%s\n", -- yaffs_InodeToObject(dir)->objectId, dentry->d_name.name)); -+ ("yaffs_lookup for %d:%s\n", -+ yaffs_InodeToObject(dir)->objectId, dentry->d_name.name)); - -- obj = -- yaffs_FindObjectByName(yaffs_InodeToObject(dir), -- dentry->d_name.name); -+ obj = yaffs_FindObjectByName(yaffs_InodeToObject(dir), -+ dentry->d_name.name); - - obj = yaffs_GetEquivalentObject(obj); /* in case it was a hardlink */ - -@@ -397,13 +461,13 @@ static struct dentry *yaffs_lookup(struc - - if (obj) { - T(YAFFS_TRACE_OS, -- (KERN_DEBUG "yaffs_lookup found %d\n", obj->objectId)); -+ ("yaffs_lookup found %d\n", obj->objectId)); - - inode = yaffs_get_inode(dir->i_sb, obj->yst_mode, 0, obj); - - if (inode) { - T(YAFFS_TRACE_OS, -- (KERN_DEBUG "yaffs_loookup dentry \n")); -+ ("yaffs_loookup dentry \n")); - /* #if 0 asserted by NCB for 2.5/6 compatability - falls through to - * d_add even if NULL inode */ - #if 0 -@@ -416,7 +480,7 @@ static struct dentry *yaffs_lookup(struc - } - - } else { -- T(YAFFS_TRACE_OS, (KERN_DEBUG "yaffs_lookup not found\n")); -+ T(YAFFS_TRACE_OS, ("yaffs_lookup not found\n")); - - } - -@@ -425,20 +489,22 @@ static struct dentry *yaffs_lookup(struc - d_add(dentry, inode); - - return NULL; -- /* return (ERR_PTR(-EIO)); */ -- - } - -+ -+#ifdef YAFFS_HAS_PUT_INODE -+ - /* For now put inode is just for debugging - * Put inode is called when the inode **structure** is put. - */ - static void yaffs_put_inode(struct inode *inode) - { - T(YAFFS_TRACE_OS, -- ("yaffs_put_inode: ino %d, count %d\n", (int)inode->i_ino, -- atomic_read(&inode->i_count))); -+ ("yaffs_put_inode: ino %d, count %d\n", (int)inode->i_ino, -+ atomic_read(&inode->i_count))); - - } -+#endif - - /* clear is called to tell the fs to release any per-inode data it holds */ - static void yaffs_clear_inode(struct inode *inode) -@@ -449,9 +515,9 @@ static void yaffs_clear_inode(struct ino - obj = yaffs_InodeToObject(inode); - - T(YAFFS_TRACE_OS, -- ("yaffs_clear_inode: ino %d, count %d %s\n", (int)inode->i_ino, -- atomic_read(&inode->i_count), -- obj ? "object exists" : "null object")); -+ ("yaffs_clear_inode: ino %d, count %d %s\n", (int)inode->i_ino, -+ atomic_read(&inode->i_count), -+ obj ? "object exists" : "null object")); - - if (obj) { - dev = obj->myDev; -@@ -486,23 +552,23 @@ static void yaffs_delete_inode(struct in - yaffs_Device *dev; - - T(YAFFS_TRACE_OS, -- ("yaffs_delete_inode: ino %d, count %d %s\n", (int)inode->i_ino, -- atomic_read(&inode->i_count), -- obj ? "object exists" : "null object")); -+ ("yaffs_delete_inode: ino %d, count %d %s\n", (int)inode->i_ino, -+ atomic_read(&inode->i_count), -+ obj ? "object exists" : "null object")); - - if (obj) { - dev = obj->myDev; - yaffs_GrossLock(dev); -- yaffs_DeleteFile(obj); -+ yaffs_DeleteObject(obj); - yaffs_GrossUnlock(dev); - } --#if (LINUX_VERSION_CODE > KERNEL_VERSION(2,6,13)) -- truncate_inode_pages (&inode->i_data, 0); -+#if (LINUX_VERSION_CODE > KERNEL_VERSION(2, 6, 13)) -+ truncate_inode_pages(&inode->i_data, 0); - #endif - clear_inode(inode); - } - --#if (LINUX_VERSION_CODE > KERNEL_VERSION(2,6,17)) -+#if (LINUX_VERSION_CODE > KERNEL_VERSION(2, 6, 17)) - static int yaffs_file_flush(struct file *file, fl_owner_t id) - #else - static int yaffs_file_flush(struct file *file) -@@ -513,8 +579,8 @@ static int yaffs_file_flush(struct file - yaffs_Device *dev = obj->myDev; - - T(YAFFS_TRACE_OS, -- (KERN_DEBUG "yaffs_file_flush object %d (%s)\n", obj->objectId, -- obj->dirty ? "dirty" : "clean")); -+ ("yaffs_file_flush object %d (%s)\n", obj->objectId, -+ obj->dirty ? "dirty" : "clean")); - - yaffs_GrossLock(dev); - -@@ -535,15 +601,15 @@ static int yaffs_readpage_nolock(struct - - yaffs_Device *dev; - -- T(YAFFS_TRACE_OS, (KERN_DEBUG "yaffs_readpage at %08x, size %08x\n", -- (unsigned)(pg->index << PAGE_CACHE_SHIFT), -- (unsigned)PAGE_CACHE_SIZE)); -+ T(YAFFS_TRACE_OS, ("yaffs_readpage at %08x, size %08x\n", -+ (unsigned)(pg->index << PAGE_CACHE_SHIFT), -+ (unsigned)PAGE_CACHE_SIZE)); - - obj = yaffs_DentryToObject(f->f_dentry); - - dev = obj->myDev; - --#if (LINUX_VERSION_CODE > KERNEL_VERSION(2,5,0)) -+#if (LINUX_VERSION_CODE > KERNEL_VERSION(2, 5, 0)) - BUG_ON(!PageLocked(pg)); - #else - if (!PageLocked(pg)) -@@ -555,9 +621,9 @@ static int yaffs_readpage_nolock(struct - - yaffs_GrossLock(dev); - -- ret = -- yaffs_ReadDataFromFile(obj, pg_buf, pg->index << PAGE_CACHE_SHIFT, -- PAGE_CACHE_SIZE); -+ ret = yaffs_ReadDataFromFile(obj, pg_buf, -+ pg->index << PAGE_CACHE_SHIFT, -+ PAGE_CACHE_SIZE); - - yaffs_GrossUnlock(dev); - -@@ -575,7 +641,7 @@ static int yaffs_readpage_nolock(struct - flush_dcache_page(pg); - kunmap(pg); - -- T(YAFFS_TRACE_OS, (KERN_DEBUG "yaffs_readpage done\n")); -+ T(YAFFS_TRACE_OS, ("yaffs_readpage done\n")); - return ret; - } - -@@ -593,7 +659,7 @@ static int yaffs_readpage(struct file *f - - /* writepage inspired by/stolen from smbfs */ - --#if (LINUX_VERSION_CODE > KERNEL_VERSION(2,5,0)) -+#if (LINUX_VERSION_CODE > KERNEL_VERSION(2, 5, 0)) - static int yaffs_writepage(struct page *page, struct writeback_control *wbc) - #else - static int yaffs_writepage(struct page *page) -@@ -616,12 +682,11 @@ static int yaffs_writepage(struct page * - - if (offset > inode->i_size) { - T(YAFFS_TRACE_OS, -- (KERN_DEBUG -- "yaffs_writepage at %08x, inode size = %08x!!!\n", -- (unsigned)(page->index << PAGE_CACHE_SHIFT), -- (unsigned)inode->i_size)); -+ ("yaffs_writepage at %08x, inode size = %08x!!!\n", -+ (unsigned)(page->index << PAGE_CACHE_SHIFT), -+ (unsigned)inode->i_size)); - T(YAFFS_TRACE_OS, -- (KERN_DEBUG " -> don't care!!\n")); -+ (" -> don't care!!\n")); - unlock_page(page); - return 0; - } -@@ -629,11 +694,10 @@ static int yaffs_writepage(struct page * - end_index = inode->i_size >> PAGE_CACHE_SHIFT; - - /* easy case */ -- if (page->index < end_index) { -+ if (page->index < end_index) - nBytes = PAGE_CACHE_SIZE; -- } else { -+ else - nBytes = inode->i_size & (PAGE_CACHE_SIZE - 1); -- } - - get_page(page); - -@@ -643,19 +707,18 @@ static int yaffs_writepage(struct page * - yaffs_GrossLock(obj->myDev); - - T(YAFFS_TRACE_OS, -- (KERN_DEBUG "yaffs_writepage at %08x, size %08x\n", -- (unsigned)(page->index << PAGE_CACHE_SHIFT), nBytes)); -+ ("yaffs_writepage at %08x, size %08x\n", -+ (unsigned)(page->index << PAGE_CACHE_SHIFT), nBytes)); - T(YAFFS_TRACE_OS, -- (KERN_DEBUG "writepag0: obj = %05x, ino = %05x\n", -- (int)obj->variant.fileVariant.fileSize, (int)inode->i_size)); -+ ("writepag0: obj = %05x, ino = %05x\n", -+ (int)obj->variant.fileVariant.fileSize, (int)inode->i_size)); - -- nWritten = -- yaffs_WriteDataToFile(obj, buffer, page->index << PAGE_CACHE_SHIFT, -- nBytes, 0); -+ nWritten = yaffs_WriteDataToFile(obj, buffer, -+ page->index << PAGE_CACHE_SHIFT, nBytes, 0); - - T(YAFFS_TRACE_OS, -- (KERN_DEBUG "writepag1: obj = %05x, ino = %05x\n", -- (int)obj->variant.fileVariant.fileSize, (int)inode->i_size)); -+ ("writepag1: obj = %05x, ino = %05x\n", -+ (int)obj->variant.fileVariant.fileSize, (int)inode->i_size)); - - yaffs_GrossUnlock(obj->myDev); - -@@ -667,100 +730,207 @@ static int yaffs_writepage(struct page * - return (nWritten == nBytes) ? 0 : -ENOSPC; - } - -+ -+#if (YAFFS_USE_WRITE_BEGIN_END > 0) -+static int yaffs_write_begin(struct file *filp, struct address_space *mapping, -+ loff_t pos, unsigned len, unsigned flags, -+ struct page **pagep, void **fsdata) -+{ -+ struct page *pg = NULL; -+ pgoff_t index = pos >> PAGE_CACHE_SHIFT; -+ uint32_t offset = pos & (PAGE_CACHE_SIZE - 1); -+ uint32_t to = offset + len; -+ -+ int ret = 0; -+ int space_held = 0; -+ -+ T(YAFFS_TRACE_OS, ("start yaffs_write_begin\n")); -+ /* Get a page */ -+#if LINUX_VERSION_CODE > KERNEL_VERSION(2, 6, 28) -+ pg = grab_cache_page_write_begin(mapping, index, flags); -+#else -+ pg = __grab_cache_page(mapping, index); -+#endif -+ -+ *pagep = pg; -+ if (!pg) { -+ ret = -ENOMEM; -+ goto out; -+ } -+ /* Get fs space */ -+ space_held = yaffs_hold_space(filp); -+ -+ if (!space_held) { -+ ret = -ENOSPC; -+ goto out; -+ } -+ -+ /* Update page if required */ -+ -+ if (!Page_Uptodate(pg) && (offset || to < PAGE_CACHE_SIZE)) -+ ret = yaffs_readpage_nolock(filp, pg); -+ -+ if (ret) -+ goto out; -+ -+ /* Happy path return */ -+ T(YAFFS_TRACE_OS, ("end yaffs_write_begin - ok\n")); -+ -+ return 0; -+ -+out: -+ T(YAFFS_TRACE_OS, ("end yaffs_write_begin fail returning %d\n", ret)); -+ if (space_held) -+ yaffs_release_space(filp); -+ if (pg) { -+ unlock_page(pg); -+ page_cache_release(pg); -+ } -+ return ret; -+} -+ -+#else -+ - static int yaffs_prepare_write(struct file *f, struct page *pg, -- unsigned offset, unsigned to) -+ unsigned offset, unsigned to) - { -+ T(YAFFS_TRACE_OS, ("yaffs_prepair_write\n")); - -- T(YAFFS_TRACE_OS, (KERN_DEBUG "yaffs_prepair_write\n")); - if (!Page_Uptodate(pg) && (offset || to < PAGE_CACHE_SIZE)) - return yaffs_readpage_nolock(f, pg); -- - return 0; -+} -+#endif -+ -+#if (YAFFS_USE_WRITE_BEGIN_END > 0) -+static int yaffs_write_end(struct file *filp, struct address_space *mapping, -+ loff_t pos, unsigned len, unsigned copied, -+ struct page *pg, void *fsdadata) -+{ -+ int ret = 0; -+ void *addr, *kva; -+ uint32_t offset_into_page = pos & (PAGE_CACHE_SIZE - 1); -+ -+ kva = kmap(pg); -+ addr = kva + offset_into_page; -+ -+ T(YAFFS_TRACE_OS, -+ ("yaffs_write_end addr %x pos %x nBytes %d\n", -+ (unsigned) addr, -+ (int)pos, copied)); -+ -+ ret = yaffs_file_write(filp, addr, copied, &pos); -+ -+ if (ret != copied) { -+ T(YAFFS_TRACE_OS, -+ ("yaffs_write_end not same size ret %d copied %d\n", -+ ret, copied)); -+ SetPageError(pg); -+ ClearPageUptodate(pg); -+ } else { -+ SetPageUptodate(pg); -+ } -+ -+ kunmap(pg); - -+ yaffs_release_space(filp); -+ unlock_page(pg); -+ page_cache_release(pg); -+ return ret; - } -+#else - - static int yaffs_commit_write(struct file *f, struct page *pg, unsigned offset, -- unsigned to) -+ unsigned to) - { -+ void *addr, *kva; - -- void *addr = page_address(pg) + offset; - loff_t pos = (((loff_t) pg->index) << PAGE_CACHE_SHIFT) + offset; - int nBytes = to - offset; - int nWritten; - - unsigned spos = pos; -- unsigned saddr = (unsigned)addr; -+ unsigned saddr; -+ -+ kva = kmap(pg); -+ addr = kva + offset; -+ -+ saddr = (unsigned) addr; - - T(YAFFS_TRACE_OS, -- (KERN_DEBUG "yaffs_commit_write addr %x pos %x nBytes %d\n", saddr, -- spos, nBytes)); -+ ("yaffs_commit_write addr %x pos %x nBytes %d\n", -+ saddr, spos, nBytes)); - - nWritten = yaffs_file_write(f, addr, nBytes, &pos); - - if (nWritten != nBytes) { - T(YAFFS_TRACE_OS, -- (KERN_DEBUG -- "yaffs_commit_write not same size nWritten %d nBytes %d\n", -- nWritten, nBytes)); -+ ("yaffs_commit_write not same size nWritten %d nBytes %d\n", -+ nWritten, nBytes)); - SetPageError(pg); - ClearPageUptodate(pg); - } else { - SetPageUptodate(pg); - } - -+ kunmap(pg); -+ - T(YAFFS_TRACE_OS, -- (KERN_DEBUG "yaffs_commit_write returning %d\n", -- nWritten == nBytes ? 0 : nWritten)); -+ ("yaffs_commit_write returning %d\n", -+ nWritten == nBytes ? 0 : nWritten)); - - return nWritten == nBytes ? 0 : nWritten; -- - } -+#endif -+ - --static void yaffs_FillInodeFromObject(struct inode *inode, yaffs_Object * obj) -+static void yaffs_FillInodeFromObject(struct inode *inode, yaffs_Object *obj) - { - if (inode && obj) { - - - /* Check mode against the variant type and attempt to repair if broken. */ -- __u32 mode = obj->yst_mode; -- switch( obj->variantType ){ -- case YAFFS_OBJECT_TYPE_FILE : -- if( ! S_ISREG(mode) ){ -- obj->yst_mode &= ~S_IFMT; -- obj->yst_mode |= S_IFREG; -- } -- -- break; -- case YAFFS_OBJECT_TYPE_SYMLINK : -- if( ! S_ISLNK(mode) ){ -- obj->yst_mode &= ~S_IFMT; -- obj->yst_mode |= S_IFLNK; -- } -- -- break; -- case YAFFS_OBJECT_TYPE_DIRECTORY : -- if( ! S_ISDIR(mode) ){ -- obj->yst_mode &= ~S_IFMT; -- obj->yst_mode |= S_IFDIR; -- } -- -- break; -- case YAFFS_OBJECT_TYPE_UNKNOWN : -- case YAFFS_OBJECT_TYPE_HARDLINK : -- case YAFFS_OBJECT_TYPE_SPECIAL : -- default: -- /* TODO? */ -- break; -- } -+ __u32 mode = obj->yst_mode; -+ switch (obj->variantType) { -+ case YAFFS_OBJECT_TYPE_FILE: -+ if (!S_ISREG(mode)) { -+ obj->yst_mode &= ~S_IFMT; -+ obj->yst_mode |= S_IFREG; -+ } -+ -+ break; -+ case YAFFS_OBJECT_TYPE_SYMLINK: -+ if (!S_ISLNK(mode)) { -+ obj->yst_mode &= ~S_IFMT; -+ obj->yst_mode |= S_IFLNK; -+ } -+ -+ break; -+ case YAFFS_OBJECT_TYPE_DIRECTORY: -+ if (!S_ISDIR(mode)) { -+ obj->yst_mode &= ~S_IFMT; -+ obj->yst_mode |= S_IFDIR; -+ } -+ -+ break; -+ case YAFFS_OBJECT_TYPE_UNKNOWN: -+ case YAFFS_OBJECT_TYPE_HARDLINK: -+ case YAFFS_OBJECT_TYPE_SPECIAL: -+ default: -+ /* TODO? */ -+ break; -+ } -+ -+ inode->i_flags |= S_NOATIME; - - inode->i_ino = obj->objectId; - inode->i_mode = obj->yst_mode; - inode->i_uid = obj->yst_uid; - inode->i_gid = obj->yst_gid; --#if (LINUX_VERSION_CODE < KERNEL_VERSION(2,6,19)) -+#if (LINUX_VERSION_CODE < KERNEL_VERSION(2, 6, 19)) - inode->i_blksize = inode->i_sb->s_blocksize; - #endif --#if (LINUX_VERSION_CODE > KERNEL_VERSION(2,5,0)) -+#if (LINUX_VERSION_CODE > KERNEL_VERSION(2, 5, 0)) - - inode->i_rdev = old_decode_dev(obj->yst_rdev); - inode->i_atime.tv_sec = (time_t) (obj->yst_atime); -@@ -781,26 +951,25 @@ static void yaffs_FillInodeFromObject(st - inode->i_nlink = yaffs_GetObjectLinkCount(obj); - - T(YAFFS_TRACE_OS, -- (KERN_DEBUG -- "yaffs_FillInode mode %x uid %d gid %d size %d count %d\n", -- inode->i_mode, inode->i_uid, inode->i_gid, -- (int)inode->i_size, atomic_read(&inode->i_count))); -+ ("yaffs_FillInode mode %x uid %d gid %d size %d count %d\n", -+ inode->i_mode, inode->i_uid, inode->i_gid, -+ (int)inode->i_size, atomic_read(&inode->i_count))); - - switch (obj->yst_mode & S_IFMT) { - default: /* fifo, device or socket */ --#if (LINUX_VERSION_CODE > KERNEL_VERSION(2,5,0)) -+#if (LINUX_VERSION_CODE > KERNEL_VERSION(2, 5, 0)) - init_special_inode(inode, obj->yst_mode, -- old_decode_dev(obj->yst_rdev)); -+ old_decode_dev(obj->yst_rdev)); - #else - init_special_inode(inode, obj->yst_mode, -- (dev_t) (obj->yst_rdev)); -+ (dev_t) (obj->yst_rdev)); - #endif - break; - case S_IFREG: /* file */ - inode->i_op = &yaffs_file_inode_operations; - inode->i_fop = &yaffs_file_operations; - inode->i_mapping->a_ops = -- &yaffs_file_address_operations; -+ &yaffs_file_address_operations; - break; - case S_IFDIR: /* directory */ - inode->i_op = &yaffs_dir_inode_operations; -@@ -817,34 +986,36 @@ static void yaffs_FillInodeFromObject(st - - } else { - T(YAFFS_TRACE_OS, -- (KERN_DEBUG "yaffs_FileInode invalid parameters\n")); -+ ("yaffs_FileInode invalid parameters\n")); - } - - } - - struct inode *yaffs_get_inode(struct super_block *sb, int mode, int dev, -- yaffs_Object * obj) -+ yaffs_Object *obj) - { - struct inode *inode; - - if (!sb) { - T(YAFFS_TRACE_OS, -- (KERN_DEBUG "yaffs_get_inode for NULL super_block!!\n")); -+ ("yaffs_get_inode for NULL super_block!!\n")); - return NULL; - - } - - if (!obj) { - T(YAFFS_TRACE_OS, -- (KERN_DEBUG "yaffs_get_inode for NULL object!!\n")); -+ ("yaffs_get_inode for NULL object!!\n")); - return NULL; - - } - - T(YAFFS_TRACE_OS, -- (KERN_DEBUG "yaffs_get_inode for object %d\n", obj->objectId)); -+ ("yaffs_get_inode for object %d\n", obj->objectId)); - -- inode = iget(sb, obj->objectId); -+ inode = Y_IGET(sb, obj->objectId); -+ if (IS_ERR(inode)) -+ return NULL; - - /* NB Side effect: iget calls back to yaffs_read_inode(). */ - /* iget also increments the inode's i_count */ -@@ -854,7 +1025,7 @@ struct inode *yaffs_get_inode(struct sup - } - - static ssize_t yaffs_file_write(struct file *f, const char *buf, size_t n, -- loff_t * pos) -+ loff_t *pos) - { - yaffs_Object *obj; - int nWritten, ipos; -@@ -869,28 +1040,26 @@ static ssize_t yaffs_file_write(struct f - - inode = f->f_dentry->d_inode; - -- if (!S_ISBLK(inode->i_mode) && f->f_flags & O_APPEND) { -+ if (!S_ISBLK(inode->i_mode) && f->f_flags & O_APPEND) - ipos = inode->i_size; -- } else { -+ else - ipos = *pos; -- } - -- if (!obj) { -+ if (!obj) - T(YAFFS_TRACE_OS, -- (KERN_DEBUG "yaffs_file_write: hey obj is null!\n")); -- } else { -+ ("yaffs_file_write: hey obj is null!\n")); -+ else - T(YAFFS_TRACE_OS, -- (KERN_DEBUG -- "yaffs_file_write about to write writing %d bytes" -- "to object %d at %d\n", -- n, obj->objectId, ipos)); -- } -+ ("yaffs_file_write about to write writing %zu bytes" -+ "to object %d at %d\n", -+ n, obj->objectId, ipos)); - - nWritten = yaffs_WriteDataToFile(obj, buf, ipos, n, 0); - - T(YAFFS_TRACE_OS, -- (KERN_DEBUG "yaffs_file_write writing %d bytes, %d written at %d\n", -- n, nWritten, ipos)); -+ ("yaffs_file_write writing %zu bytes, %d written at %d\n", -+ n, nWritten, ipos)); -+ - if (nWritten > 0) { - ipos += nWritten; - *pos = ipos; -@@ -899,10 +1068,9 @@ static ssize_t yaffs_file_write(struct f - inode->i_blocks = (ipos + 511) >> 9; - - T(YAFFS_TRACE_OS, -- (KERN_DEBUG -- "yaffs_file_write size updated to %d bytes, " -- "%d blocks\n", -- ipos, (int)(inode->i_blocks))); -+ ("yaffs_file_write size updated to %d bytes, " -+ "%d blocks\n", -+ ipos, (int)(inode->i_blocks))); - } - - } -@@ -910,13 +1078,54 @@ static ssize_t yaffs_file_write(struct f - return nWritten == 0 ? -ENOSPC : nWritten; - } - -+/* Space holding and freeing is done to ensure we have space available for write_begin/end */ -+/* For now we just assume few parallel writes and check against a small number. */ -+/* Todo: need to do this with a counter to handle parallel reads better */ -+ -+static ssize_t yaffs_hold_space(struct file *f) -+{ -+ yaffs_Object *obj; -+ yaffs_Device *dev; -+ -+ int nFreeChunks; -+ -+ -+ obj = yaffs_DentryToObject(f->f_dentry); -+ -+ dev = obj->myDev; -+ -+ yaffs_GrossLock(dev); -+ -+ nFreeChunks = yaffs_GetNumberOfFreeChunks(dev); -+ -+ yaffs_GrossUnlock(dev); -+ -+ return (nFreeChunks > 20) ? 1 : 0; -+} -+ -+static void yaffs_release_space(struct file *f) -+{ -+ yaffs_Object *obj; -+ yaffs_Device *dev; -+ -+ -+ obj = yaffs_DentryToObject(f->f_dentry); -+ -+ dev = obj->myDev; -+ -+ yaffs_GrossLock(dev); -+ -+ -+ yaffs_GrossUnlock(dev); -+} -+ - static int yaffs_readdir(struct file *f, void *dirent, filldir_t filldir) - { - yaffs_Object *obj; - yaffs_Device *dev; - struct inode *inode = f->f_dentry->d_inode; - unsigned long offset, curoffs; -- struct list_head *i; -+ struct ylist_head *i; - yaffs_Object *l; - - char name[YAFFS_MAX_NAME_LENGTH + 1]; -@@ -932,24 +1141,20 @@ static int yaffs_readdir(struct file *f, - - if (offset == 0) { - T(YAFFS_TRACE_OS, -- (KERN_DEBUG "yaffs_readdir: entry . ino %d \n", -- (int)inode->i_ino)); -- if (filldir(dirent, ".", 1, offset, inode->i_ino, DT_DIR) -- < 0) { -+ ("yaffs_readdir: entry . ino %d \n", -+ (int)inode->i_ino)); -+ if (filldir(dirent, ".", 1, offset, inode->i_ino, DT_DIR) < 0) - goto out; -- } - offset++; - f->f_pos++; - } - if (offset == 1) { - T(YAFFS_TRACE_OS, -- (KERN_DEBUG "yaffs_readdir: entry .. ino %d \n", -- (int)f->f_dentry->d_parent->d_inode->i_ino)); -- if (filldir -- (dirent, "..", 2, offset, -- f->f_dentry->d_parent->d_inode->i_ino, DT_DIR) < 0) { -+ ("yaffs_readdir: entry .. ino %d \n", -+ (int)f->f_dentry->d_parent->d_inode->i_ino)); -+ if (filldir(dirent, "..", 2, offset, -+ f->f_dentry->d_parent->d_inode->i_ino, DT_DIR) < 0) - goto out; -- } - offset++; - f->f_pos++; - } -@@ -965,35 +1170,32 @@ static int yaffs_readdir(struct file *f, - f->f_version = inode->i_version; - } - -- list_for_each(i, &obj->variant.directoryVariant.children) { -+ ylist_for_each(i, &obj->variant.directoryVariant.children) { - curoffs++; - if (curoffs >= offset) { -- l = list_entry(i, yaffs_Object, siblings); -+ l = ylist_entry(i, yaffs_Object, siblings); - - yaffs_GetObjectName(l, name, - YAFFS_MAX_NAME_LENGTH + 1); - T(YAFFS_TRACE_OS, -- (KERN_DEBUG "yaffs_readdir: %s inode %d\n", name, -+ ("yaffs_readdir: %s inode %d\n", name, - yaffs_GetObjectInode(l))); - - if (filldir(dirent, -- name, -- strlen(name), -- offset, -- yaffs_GetObjectInode(l), -- yaffs_GetObjectType(l)) -- < 0) { -+ name, -+ strlen(name), -+ offset, -+ yaffs_GetObjectInode(l), -+ yaffs_GetObjectType(l)) < 0) - goto up_and_out; -- } - - offset++; - f->f_pos++; - } - } - -- up_and_out: -- out: -- -+up_and_out: -+out: - yaffs_GrossUnlock(dev); - - return 0; -@@ -1002,12 +1204,19 @@ static int yaffs_readdir(struct file *f, - /* - * File creation. Allocate an inode, and we're done.. - */ --#if (LINUX_VERSION_CODE > KERNEL_VERSION(2,5,0)) -+ -+#if LINUX_VERSION_CODE < KERNEL_VERSION(2, 6, 29) -+#define YCRED(x) x -+#else -+#define YCRED(x) (x->cred) -+#endif -+ -+#if (LINUX_VERSION_CODE > KERNEL_VERSION(2, 5, 0)) - static int yaffs_mknod(struct inode *dir, struct dentry *dentry, int mode, -- dev_t rdev) -+ dev_t rdev) - #else - static int yaffs_mknod(struct inode *dir, struct dentry *dentry, int mode, -- int rdev) -+ int rdev) - #endif - { - struct inode *inode; -@@ -1018,25 +1227,25 @@ static int yaffs_mknod(struct inode *dir - yaffs_Object *parent = yaffs_InodeToObject(dir); - - int error = -ENOSPC; -- uid_t uid = current->fsuid; -- gid_t gid = (dir->i_mode & S_ISGID) ? dir->i_gid : current->fsgid; -+ uid_t uid = YCRED(current)->fsuid; -+ gid_t gid = (dir->i_mode & S_ISGID) ? dir->i_gid : YCRED(current)->fsgid; - -- if((dir->i_mode & S_ISGID) && S_ISDIR(mode)) -+ if ((dir->i_mode & S_ISGID) && S_ISDIR(mode)) - mode |= S_ISGID; - - if (parent) { - T(YAFFS_TRACE_OS, -- (KERN_DEBUG "yaffs_mknod: parent object %d type %d\n", -- parent->objectId, parent->variantType)); -+ ("yaffs_mknod: parent object %d type %d\n", -+ parent->objectId, parent->variantType)); - } else { - T(YAFFS_TRACE_OS, -- (KERN_DEBUG "yaffs_mknod: could not get parent object\n")); -+ ("yaffs_mknod: could not get parent object\n")); - return -EPERM; - } - - T(YAFFS_TRACE_OS, ("yaffs_mknod: making oject for %s, " -- "mode %x dev %x\n", -- dentry->d_name.name, mode, rdev)); -+ "mode %x dev %x\n", -+ dentry->d_name.name, mode, rdev)); - - dev = parent->myDev; - -@@ -1045,33 +1254,28 @@ static int yaffs_mknod(struct inode *dir - switch (mode & S_IFMT) { - default: - /* Special (socket, fifo, device...) */ -- T(YAFFS_TRACE_OS, (KERN_DEBUG -- "yaffs_mknod: making special\n")); --#if (LINUX_VERSION_CODE > KERNEL_VERSION(2,5,0)) -- obj = -- yaffs_MknodSpecial(parent, dentry->d_name.name, mode, uid, -- gid, old_encode_dev(rdev)); --#else -- obj = -- yaffs_MknodSpecial(parent, dentry->d_name.name, mode, uid, -- gid, rdev); -+ T(YAFFS_TRACE_OS, ("yaffs_mknod: making special\n")); -+#if (LINUX_VERSION_CODE > KERNEL_VERSION(2, 5, 0)) -+ obj = yaffs_MknodSpecial(parent, dentry->d_name.name, mode, uid, -+ gid, old_encode_dev(rdev)); -+#else -+ obj = yaffs_MknodSpecial(parent, dentry->d_name.name, mode, uid, -+ gid, rdev); - #endif - break; - case S_IFREG: /* file */ -- T(YAFFS_TRACE_OS, (KERN_DEBUG "yaffs_mknod: making file\n")); -- obj = -- yaffs_MknodFile(parent, dentry->d_name.name, mode, uid, -- gid); -+ T(YAFFS_TRACE_OS, ("yaffs_mknod: making file\n")); -+ obj = yaffs_MknodFile(parent, dentry->d_name.name, mode, uid, -+ gid); - break; - case S_IFDIR: /* directory */ - T(YAFFS_TRACE_OS, -- (KERN_DEBUG "yaffs_mknod: making directory\n")); -- obj = -- yaffs_MknodDirectory(parent, dentry->d_name.name, mode, -- uid, gid); -+ ("yaffs_mknod: making directory\n")); -+ obj = yaffs_MknodDirectory(parent, dentry->d_name.name, mode, -+ uid, gid); - break; - case S_IFLNK: /* symlink */ -- T(YAFFS_TRACE_OS, (KERN_DEBUG "yaffs_mknod: making file\n")); -+ T(YAFFS_TRACE_OS, ("yaffs_mknod: making symlink\n")); - obj = NULL; /* Do we ever get here? */ - break; - } -@@ -1083,12 +1287,12 @@ static int yaffs_mknod(struct inode *dir - inode = yaffs_get_inode(dir->i_sb, mode, rdev, obj); - d_instantiate(dentry, inode); - T(YAFFS_TRACE_OS, -- (KERN_DEBUG "yaffs_mknod created object %d count = %d\n", -- obj->objectId, atomic_read(&inode->i_count))); -+ ("yaffs_mknod created object %d count = %d\n", -+ obj->objectId, atomic_read(&inode->i_count))); - error = 0; - } else { - T(YAFFS_TRACE_OS, -- (KERN_DEBUG "yaffs_mknod failed making object\n")); -+ ("yaffs_mknod failed making object\n")); - error = -ENOMEM; - } - -@@ -1098,25 +1302,19 @@ static int yaffs_mknod(struct inode *dir - static int yaffs_mkdir(struct inode *dir, struct dentry *dentry, int mode) - { - int retVal; -- T(YAFFS_TRACE_OS, (KERN_DEBUG "yaffs_mkdir\n")); -+ T(YAFFS_TRACE_OS, ("yaffs_mkdir\n")); - retVal = yaffs_mknod(dir, dentry, mode | S_IFDIR, 0); --#if 0 -- /* attempt to fix dir bug - didn't work */ -- if (!retVal) { -- dget(dentry); -- } --#endif - return retVal; - } - --#if (LINUX_VERSION_CODE > KERNEL_VERSION(2,5,0)) -+#if (LINUX_VERSION_CODE > KERNEL_VERSION(2, 5, 0)) - static int yaffs_create(struct inode *dir, struct dentry *dentry, int mode, - struct nameidata *n) - #else - static int yaffs_create(struct inode *dir, struct dentry *dentry, int mode) - #endif - { -- T(YAFFS_TRACE_OS, (KERN_DEBUG "yaffs_create\n")); -+ T(YAFFS_TRACE_OS, ("yaffs_create\n")); - return yaffs_mknod(dir, dentry, mode | S_IFREG, 0); - } - -@@ -1127,8 +1325,8 @@ static int yaffs_unlink(struct inode *di - yaffs_Device *dev; - - T(YAFFS_TRACE_OS, -- (KERN_DEBUG "yaffs_unlink %d:%s\n", (int)(dir->i_ino), -- dentry->d_name.name)); -+ ("yaffs_unlink %d:%s\n", (int)(dir->i_ino), -+ dentry->d_name.name)); - - dev = yaffs_InodeToObject(dir)->myDev; - -@@ -1151,82 +1349,74 @@ static int yaffs_unlink(struct inode *di - * Create a link... - */ - static int yaffs_link(struct dentry *old_dentry, struct inode *dir, -- struct dentry *dentry) -+ struct dentry *dentry) - { - struct inode *inode = old_dentry->d_inode; - yaffs_Object *obj = NULL; - yaffs_Object *link = NULL; - yaffs_Device *dev; - -- T(YAFFS_TRACE_OS, (KERN_DEBUG "yaffs_link\n")); -+ T(YAFFS_TRACE_OS, ("yaffs_link\n")); - - obj = yaffs_InodeToObject(inode); - dev = obj->myDev; - - yaffs_GrossLock(dev); - -- if (!S_ISDIR(inode->i_mode)) /* Don't link directories */ -- { -- link = -- yaffs_Link(yaffs_InodeToObject(dir), dentry->d_name.name, -- obj); -- } -+ if (!S_ISDIR(inode->i_mode)) /* Don't link directories */ -+ link = yaffs_Link(yaffs_InodeToObject(dir), dentry->d_name.name, -+ obj); - - if (link) { - old_dentry->d_inode->i_nlink = yaffs_GetObjectLinkCount(obj); - d_instantiate(dentry, old_dentry->d_inode); - atomic_inc(&old_dentry->d_inode->i_count); - T(YAFFS_TRACE_OS, -- (KERN_DEBUG "yaffs_link link count %d i_count %d\n", -- old_dentry->d_inode->i_nlink, -- atomic_read(&old_dentry->d_inode->i_count))); -- -+ ("yaffs_link link count %d i_count %d\n", -+ old_dentry->d_inode->i_nlink, -+ atomic_read(&old_dentry->d_inode->i_count))); - } - - yaffs_GrossUnlock(dev); - -- if (link) { -- -+ if (link) - return 0; -- } - - return -EPERM; - } - - static int yaffs_symlink(struct inode *dir, struct dentry *dentry, -- const char *symname) -+ const char *symname) - { - yaffs_Object *obj; - yaffs_Device *dev; -- uid_t uid = current->fsuid; -- gid_t gid = (dir->i_mode & S_ISGID) ? dir->i_gid : current->fsgid; -+ uid_t uid = YCRED(current)->fsuid; -+ gid_t gid = (dir->i_mode & S_ISGID) ? dir->i_gid : YCRED(current)->fsgid; - -- T(YAFFS_TRACE_OS, (KERN_DEBUG "yaffs_symlink\n")); -+ T(YAFFS_TRACE_OS, ("yaffs_symlink\n")); - - dev = yaffs_InodeToObject(dir)->myDev; - yaffs_GrossLock(dev); - obj = yaffs_MknodSymLink(yaffs_InodeToObject(dir), dentry->d_name.name, -- S_IFLNK | S_IRWXUGO, uid, gid, symname); -+ S_IFLNK | S_IRWXUGO, uid, gid, symname); - yaffs_GrossUnlock(dev); - - if (obj) { -- - struct inode *inode; - - inode = yaffs_get_inode(dir->i_sb, obj->yst_mode, 0, obj); - d_instantiate(dentry, inode); -- T(YAFFS_TRACE_OS, (KERN_DEBUG "symlink created OK\n")); -+ T(YAFFS_TRACE_OS, ("symlink created OK\n")); - return 0; - } else { -- T(YAFFS_TRACE_OS, (KERN_DEBUG "symlink not created\n")); -- -+ T(YAFFS_TRACE_OS, ("symlink not created\n")); - } - - return -ENOMEM; - } - - static int yaffs_sync_object(struct file *file, struct dentry *dentry, -- int datasync) -+ int datasync) - { - - yaffs_Object *obj; -@@ -1236,7 +1426,7 @@ static int yaffs_sync_object(struct file - - dev = obj->myDev; - -- T(YAFFS_TRACE_OS, (KERN_DEBUG "yaffs_sync_object\n")); -+ T(YAFFS_TRACE_OS, ("yaffs_sync_object\n")); - yaffs_GrossLock(dev); - yaffs_FlushFile(obj, 1); - yaffs_GrossUnlock(dev); -@@ -1255,41 +1445,36 @@ static int yaffs_rename(struct inode *ol - int retVal = YAFFS_FAIL; - yaffs_Object *target; - -- T(YAFFS_TRACE_OS, (KERN_DEBUG "yaffs_rename\n")); -+ T(YAFFS_TRACE_OS, ("yaffs_rename\n")); - dev = yaffs_InodeToObject(old_dir)->myDev; - - yaffs_GrossLock(dev); - - /* Check if the target is an existing directory that is not empty. */ -- target = -- yaffs_FindObjectByName(yaffs_InodeToObject(new_dir), -- new_dentry->d_name.name); -+ target = yaffs_FindObjectByName(yaffs_InodeToObject(new_dir), -+ new_dentry->d_name.name); - - - -- if (target && -- target->variantType == YAFFS_OBJECT_TYPE_DIRECTORY && -- !list_empty(&target->variant.directoryVariant.children)) { -+ if (target && target->variantType == YAFFS_OBJECT_TYPE_DIRECTORY && -+ !ylist_empty(&target->variant.directoryVariant.children)) { - -- T(YAFFS_TRACE_OS, (KERN_DEBUG "target is non-empty dir\n")); -+ T(YAFFS_TRACE_OS, ("target is non-empty dir\n")); - - retVal = YAFFS_FAIL; - } else { -- - /* Now does unlinking internally using shadowing mechanism */ -- T(YAFFS_TRACE_OS, (KERN_DEBUG "calling yaffs_RenameObject\n")); -- -- retVal = -- yaffs_RenameObject(yaffs_InodeToObject(old_dir), -- old_dentry->d_name.name, -- yaffs_InodeToObject(new_dir), -- new_dentry->d_name.name); -+ T(YAFFS_TRACE_OS, ("calling yaffs_RenameObject\n")); - -+ retVal = yaffs_RenameObject(yaffs_InodeToObject(old_dir), -+ old_dentry->d_name.name, -+ yaffs_InodeToObject(new_dir), -+ new_dentry->d_name.name); - } - yaffs_GrossUnlock(dev); - - if (retVal == YAFFS_OK) { -- if(target) { -+ if (target) { - new_dentry->d_inode->i_nlink--; - mark_inode_dirty(new_dentry->d_inode); - } -@@ -1298,7 +1483,6 @@ static int yaffs_rename(struct inode *ol - } else { - return -ENOTEMPTY; - } -- - } - - static int yaffs_setattr(struct dentry *dentry, struct iattr *attr) -@@ -1308,15 +1492,15 @@ static int yaffs_setattr(struct dentry * - yaffs_Device *dev; - - T(YAFFS_TRACE_OS, -- (KERN_DEBUG "yaffs_setattr of object %d\n", -- yaffs_InodeToObject(inode)->objectId)); -- -- if ((error = inode_change_ok(inode, attr)) == 0) { -+ ("yaffs_setattr of object %d\n", -+ yaffs_InodeToObject(inode)->objectId)); - -+ error = inode_change_ok(inode, attr); -+ if (error == 0) { - dev = yaffs_InodeToObject(inode)->myDev; - yaffs_GrossLock(dev); - if (yaffs_SetAttributes(yaffs_InodeToObject(inode), attr) == -- YAFFS_OK) { -+ YAFFS_OK) { - error = 0; - } else { - error = -EPERM; -@@ -1328,12 +1512,12 @@ static int yaffs_setattr(struct dentry * - return error; - } - --#if (LINUX_VERSION_CODE > KERNEL_VERSION(2,6,17)) -+#if (LINUX_VERSION_CODE > KERNEL_VERSION(2, 6, 17)) - static int yaffs_statfs(struct dentry *dentry, struct kstatfs *buf) - { - yaffs_Device *dev = yaffs_DentryToObject(dentry)->myDev; - struct super_block *sb = dentry->d_sb; --#elif (LINUX_VERSION_CODE > KERNEL_VERSION(2,5,0)) -+#elif (LINUX_VERSION_CODE > KERNEL_VERSION(2, 5, 0)) - static int yaffs_statfs(struct super_block *sb, struct kstatfs *buf) - { - yaffs_Device *dev = yaffs_SuperToDevice(sb); -@@ -1343,32 +1527,53 @@ static int yaffs_statfs(struct super_blo - yaffs_Device *dev = yaffs_SuperToDevice(sb); - #endif - -- T(YAFFS_TRACE_OS, (KERN_DEBUG "yaffs_statfs\n")); -+ T(YAFFS_TRACE_OS, ("yaffs_statfs\n")); - - yaffs_GrossLock(dev); - - buf->f_type = YAFFS_MAGIC; - buf->f_bsize = sb->s_blocksize; - buf->f_namelen = 255; -- if (sb->s_blocksize > dev->nDataBytesPerChunk) { -+ -+ if (dev->nDataBytesPerChunk & (dev->nDataBytesPerChunk - 1)) { -+ /* Do this if chunk size is not a power of 2 */ -+ -+ uint64_t bytesInDev; -+ uint64_t bytesFree; -+ -+ bytesInDev = ((uint64_t)((dev->endBlock - dev->startBlock + 1))) * -+ ((uint64_t)(dev->nChunksPerBlock * dev->nDataBytesPerChunk)); -+ -+ do_div(bytesInDev, sb->s_blocksize); /* bytesInDev becomes the number of blocks */ -+ buf->f_blocks = bytesInDev; -+ -+ bytesFree = ((uint64_t)(yaffs_GetNumberOfFreeChunks(dev))) * -+ ((uint64_t)(dev->nDataBytesPerChunk)); -+ -+ do_div(bytesFree, sb->s_blocksize); -+ -+ buf->f_bfree = bytesFree; -+ -+ } else if (sb->s_blocksize > dev->nDataBytesPerChunk) { - - buf->f_blocks = -- (dev->endBlock - dev->startBlock + -- 1) * dev->nChunksPerBlock / (sb->s_blocksize / -- dev->nDataBytesPerChunk); -+ (dev->endBlock - dev->startBlock + 1) * -+ dev->nChunksPerBlock / -+ (sb->s_blocksize / dev->nDataBytesPerChunk); - buf->f_bfree = -- yaffs_GetNumberOfFreeChunks(dev) / (sb->s_blocksize / -- dev->nDataBytesPerChunk); -+ yaffs_GetNumberOfFreeChunks(dev) / -+ (sb->s_blocksize / dev->nDataBytesPerChunk); - } else { -- - buf->f_blocks = -- (dev->endBlock - dev->startBlock + -- 1) * dev->nChunksPerBlock * (dev->nDataBytesPerChunk / -- sb->s_blocksize); -+ (dev->endBlock - dev->startBlock + 1) * -+ dev->nChunksPerBlock * -+ (dev->nDataBytesPerChunk / sb->s_blocksize); -+ - buf->f_bfree = -- yaffs_GetNumberOfFreeChunks(dev) * (dev->nDataBytesPerChunk / -- sb->s_blocksize); -+ yaffs_GetNumberOfFreeChunks(dev) * -+ (dev->nDataBytesPerChunk / sb->s_blocksize); - } -+ - buf->f_files = 0; - buf->f_ffree = 0; - buf->f_bavail = buf->f_bfree; -@@ -1378,18 +1583,19 @@ static int yaffs_statfs(struct super_blo - } - - --/** - static int yaffs_do_sync_fs(struct super_block *sb) - { - - yaffs_Device *dev = yaffs_SuperToDevice(sb); -- T(YAFFS_TRACE_OS, (KERN_DEBUG "yaffs_do_sync_fs\n")); -+ T(YAFFS_TRACE_OS, ("yaffs_do_sync_fs\n")); - -- if(sb->s_dirt) { -+ if (sb->s_dirt) { - yaffs_GrossLock(dev); - -- if(dev) -+ if (dev) { -+ yaffs_FlushEntireDeviceCache(dev); - yaffs_CheckpointSave(dev); -+ } - - yaffs_GrossUnlock(dev); - -@@ -1397,35 +1603,73 @@ static int yaffs_do_sync_fs(struct super - } - return 0; - } --**/ - --#if (LINUX_VERSION_CODE > KERNEL_VERSION(2,6,17)) -+ -+#if (LINUX_VERSION_CODE > KERNEL_VERSION(2, 6, 17)) - static void yaffs_write_super(struct super_block *sb) - #else - static int yaffs_write_super(struct super_block *sb) - #endif - { - -- T(YAFFS_TRACE_OS, (KERN_DEBUG "yaffs_write_super\n")); --#if (LINUX_VERSION_CODE < KERNEL_VERSION(2,6,18)) -- return 0; /* yaffs_do_sync_fs(sb);*/ -+ T(YAFFS_TRACE_OS, ("yaffs_write_super\n")); -+ if (yaffs_auto_checkpoint >= 2) -+ yaffs_do_sync_fs(sb); -+#if (LINUX_VERSION_CODE < KERNEL_VERSION(2, 6, 18)) -+ return 0; - #endif - } - - --#if (LINUX_VERSION_CODE > KERNEL_VERSION(2,6,17)) -+#if (LINUX_VERSION_CODE > KERNEL_VERSION(2, 6, 17)) - static int yaffs_sync_fs(struct super_block *sb, int wait) - #else - static int yaffs_sync_fs(struct super_block *sb) - #endif - { -+ T(YAFFS_TRACE_OS, ("yaffs_sync_fs\n")); -+ -+ if (yaffs_auto_checkpoint >= 1) -+ yaffs_do_sync_fs(sb); -+ -+ return 0; -+} -+ -+#ifdef YAFFS_USE_OWN_IGET -+ -+static struct inode *yaffs_iget(struct super_block *sb, unsigned long ino) -+{ -+ struct inode *inode; -+ yaffs_Object *obj; -+ yaffs_Device *dev = yaffs_SuperToDevice(sb); -+ -+ T(YAFFS_TRACE_OS, -+ ("yaffs_iget for %lu\n", ino)); - -- T(YAFFS_TRACE_OS, (KERN_DEBUG "yaffs_sync_fs\n")); -+ inode = iget_locked(sb, ino); -+ if (!inode) -+ return ERR_PTR(-ENOMEM); -+ if (!(inode->i_state & I_NEW)) -+ return inode; -+ -+ /* NB This is called as a side effect of other functions, but -+ * we had to release the lock to prevent deadlocks, so -+ * need to lock again. -+ */ - -- return 0; /* yaffs_do_sync_fs(sb);*/ -+ yaffs_GrossLock(dev); - -+ obj = yaffs_FindObjectByNumber(dev, inode->i_ino); -+ -+ yaffs_FillInodeFromObject(inode, obj); -+ -+ yaffs_GrossUnlock(dev); -+ -+ unlock_new_inode(inode); -+ return inode; - } - -+#else - - static void yaffs_read_inode(struct inode *inode) - { -@@ -1438,7 +1682,7 @@ static void yaffs_read_inode(struct inod - yaffs_Device *dev = yaffs_SuperToDevice(inode->i_sb); - - T(YAFFS_TRACE_OS, -- (KERN_DEBUG "yaffs_read_inode for %d\n", (int)inode->i_ino)); -+ ("yaffs_read_inode for %d\n", (int)inode->i_ino)); - - yaffs_GrossLock(dev); - -@@ -1449,18 +1693,20 @@ static void yaffs_read_inode(struct inod - yaffs_GrossUnlock(dev); - } - --static LIST_HEAD(yaffs_dev_list); -+#endif -+ -+static YLIST_HEAD(yaffs_dev_list); - --#if 0 // not used -+#if 0 /* not used */ - static int yaffs_remount_fs(struct super_block *sb, int *flags, char *data) - { - yaffs_Device *dev = yaffs_SuperToDevice(sb); - -- if( *flags & MS_RDONLY ) { -+ if (*flags & MS_RDONLY) { - struct mtd_info *mtd = yaffs_SuperToDevice(sb)->genericDevice; - - T(YAFFS_TRACE_OS, -- (KERN_DEBUG "yaffs_remount_fs: %s: RO\n", dev->name )); -+ ("yaffs_remount_fs: %s: RO\n", dev->name)); - - yaffs_GrossLock(dev); - -@@ -1472,10 +1718,9 @@ static int yaffs_remount_fs(struct super - mtd->sync(mtd); - - yaffs_GrossUnlock(dev); -- } -- else { -+ } else { - T(YAFFS_TRACE_OS, -- (KERN_DEBUG "yaffs_remount_fs: %s: RW\n", dev->name )); -+ ("yaffs_remount_fs: %s: RW\n", dev->name)); - } - - return 0; -@@ -1486,7 +1731,7 @@ static void yaffs_put_super(struct super - { - yaffs_Device *dev = yaffs_SuperToDevice(sb); - -- T(YAFFS_TRACE_OS, (KERN_DEBUG "yaffs_put_super\n")); -+ T(YAFFS_TRACE_OS, ("yaffs_put_super\n")); - - yaffs_GrossLock(dev); - -@@ -1494,18 +1739,17 @@ static void yaffs_put_super(struct super - - yaffs_CheckpointSave(dev); - -- if (dev->putSuperFunc) { -+ if (dev->putSuperFunc) - dev->putSuperFunc(sb); -- } - - yaffs_Deinitialise(dev); - - yaffs_GrossUnlock(dev); - - /* we assume this is protected by lock_kernel() in mount/umount */ -- list_del(&dev->devList); -+ ylist_del(&dev->devList); - -- if(dev->spareBuffer){ -+ if (dev->spareBuffer) { - YFREE(dev->spareBuffer); - dev->spareBuffer = NULL; - } -@@ -1516,12 +1760,10 @@ static void yaffs_put_super(struct super - - static void yaffs_MTDPutSuper(struct super_block *sb) - { -- - struct mtd_info *mtd = yaffs_SuperToDevice(sb)->genericDevice; - -- if (mtd->sync) { -+ if (mtd->sync) - mtd->sync(mtd); -- } - - put_mtd_device(mtd); - } -@@ -1531,9 +1773,9 @@ static void yaffs_MarkSuperBlockDirty(vo - { - struct super_block *sb = (struct super_block *)vsb; - -- T(YAFFS_TRACE_OS, (KERN_DEBUG "yaffs_MarkSuperBlockDirty() sb = %p\n",sb)); --// if(sb) --// sb->s_dirt = 1; -+ T(YAFFS_TRACE_OS, ("yaffs_MarkSuperBlockDirty() sb = %p\n", sb)); -+ if (sb) -+ sb->s_dirt = 1; - } - - typedef struct { -@@ -1546,48 +1788,48 @@ typedef struct { - #define MAX_OPT_LEN 20 - static int yaffs_parse_options(yaffs_options *options, const char *options_str) - { -- char cur_opt[MAX_OPT_LEN+1]; -+ char cur_opt[MAX_OPT_LEN + 1]; - int p; - int error = 0; - - /* Parse through the options which is a comma seperated list */ - -- while(options_str && *options_str && !error){ -- memset(cur_opt,0,MAX_OPT_LEN+1); -+ while (options_str && *options_str && !error) { -+ memset(cur_opt, 0, MAX_OPT_LEN + 1); - p = 0; - -- while(*options_str && *options_str != ','){ -- if(p < MAX_OPT_LEN){ -+ while (*options_str && *options_str != ',') { -+ if (p < MAX_OPT_LEN) { - cur_opt[p] = *options_str; - p++; - } - options_str++; - } - -- if(!strcmp(cur_opt,"inband-tags")) -+ if (!strcmp(cur_opt, "inband-tags")) - options->inband_tags = 1; -- else if(!strcmp(cur_opt,"no-cache")) -+ else if (!strcmp(cur_opt, "no-cache")) - options->no_cache = 1; -- else if(!strcmp(cur_opt,"no-checkpoint-read")) -+ else if (!strcmp(cur_opt, "no-checkpoint-read")) - options->skip_checkpoint_read = 1; -- else if(!strcmp(cur_opt,"no-checkpoint-write")) -+ else if (!strcmp(cur_opt, "no-checkpoint-write")) - options->skip_checkpoint_write = 1; -- else if(!strcmp(cur_opt,"no-checkpoint")){ -+ else if (!strcmp(cur_opt, "no-checkpoint")) { - options->skip_checkpoint_read = 1; - options->skip_checkpoint_write = 1; - } else { -- printk(KERN_INFO "yaffs: Bad mount option \"%s\"\n",cur_opt); -+ printk(KERN_INFO "yaffs: Bad mount option \"%s\"\n", -+ cur_opt); - error = 1; - } -- - } - - return error; - } - - static struct super_block *yaffs_internal_read_super(int yaffsVersion, -- struct super_block *sb, -- void *data, int silent) -+ struct super_block *sb, -+ void *data, int silent) - { - int nBlocks; - struct inode *inode = NULL; -@@ -1602,6 +1844,7 @@ static struct super_block *yaffs_interna - - sb->s_magic = YAFFS_MAGIC; - sb->s_op = &yaffs_super_ops; -+ sb->s_flags |= MS_NOATIME; - - if (!sb) - printk(KERN_INFO "yaffs: sb is NULL\n"); -@@ -1614,14 +1857,14 @@ static struct super_block *yaffs_interna - sb->s_dev, - yaffs_devname(sb, devname_buf)); - -- if(!data_str) -+ if (!data_str) - data_str = ""; - -- printk(KERN_INFO "yaffs: passed flags \"%s\"\n",data_str); -+ printk(KERN_INFO "yaffs: passed flags \"%s\"\n", data_str); - -- memset(&options,0,sizeof(options)); -+ memset(&options, 0, sizeof(options)); - -- if(yaffs_parse_options(&options,data_str)){ -+ if (yaffs_parse_options(&options, data_str)) { - /* Option parsing failed */ - return NULL; - } -@@ -1645,9 +1888,9 @@ static struct super_block *yaffs_interna - yaffs_devname(sb, devname_buf))); - - /* Check it's an mtd device..... */ -- if (MAJOR(sb->s_dev) != MTD_BLOCK_MAJOR) { -+ if (MAJOR(sb->s_dev) != MTD_BLOCK_MAJOR) - return NULL; /* This isn't an mtd device */ -- } -+ - /* Get the device */ - mtd = get_mtd_device(NULL, MINOR(sb->s_dev)); - if (!mtd) { -@@ -1673,29 +1916,23 @@ static struct super_block *yaffs_interna - T(YAFFS_TRACE_OS, (" %s %d\n", WRITE_SIZE_STR, WRITE_SIZE(mtd))); - T(YAFFS_TRACE_OS, (" oobsize %d\n", mtd->oobsize)); - T(YAFFS_TRACE_OS, (" erasesize %d\n", mtd->erasesize)); -- T(YAFFS_TRACE_OS, (" size %d\n", mtd->size)); -+#if LINUX_VERSION_CODE < KERNEL_VERSION(2, 6, 29) -+ T(YAFFS_TRACE_OS, (" size %u\n", mtd->size)); -+#else -+ T(YAFFS_TRACE_OS, (" size %lld\n", mtd->size)); -+#endif - - #ifdef CONFIG_YAFFS_AUTO_YAFFS2 - -- if (yaffsVersion == 1 && --#if (LINUX_VERSION_CODE > KERNEL_VERSION(2,6,17)) -- mtd->writesize >= 2048) { --#else -- mtd->oobblock >= 2048) { --#endif -- T(YAFFS_TRACE_ALWAYS,("yaffs: auto selecting yaffs2\n")); -- yaffsVersion = 2; -+ if (yaffsVersion == 1 && WRITE_SIZE(mtd) >= 2048) { -+ T(YAFFS_TRACE_ALWAYS, ("yaffs: auto selecting yaffs2\n")); -+ yaffsVersion = 2; - } - - /* Added NCB 26/5/2006 for completeness */ -- if (yaffsVersion == 2 && --#if (LINUX_VERSION_CODE > KERNEL_VERSION(2,6,17)) -- mtd->writesize == 512) { --#else -- mtd->oobblock == 512) { --#endif -- T(YAFFS_TRACE_ALWAYS,("yaffs: auto selecting yaffs1\n")); -- yaffsVersion = 1; -+ if (yaffsVersion == 2 && !options.inband_tags && WRITE_SIZE(mtd) == 512) { -+ T(YAFFS_TRACE_ALWAYS, ("yaffs: auto selecting yaffs1\n")); -+ yaffsVersion = 1; - } - - #endif -@@ -1707,7 +1944,7 @@ static struct super_block *yaffs_interna - !mtd->block_markbad || - !mtd->read || - !mtd->write || --#if (LINUX_VERSION_CODE > KERNEL_VERSION(2,6,17)) -+#if (LINUX_VERSION_CODE > KERNEL_VERSION(2, 6, 17)) - !mtd->read_oob || !mtd->write_oob) { - #else - !mtd->write_ecc || -@@ -1719,12 +1956,9 @@ static struct super_block *yaffs_interna - return NULL; - } - --#if (LINUX_VERSION_CODE > KERNEL_VERSION(2,6,17)) -- if (mtd->writesize < YAFFS_MIN_YAFFS2_CHUNK_SIZE || --#else -- if (mtd->oobblock < YAFFS_MIN_YAFFS2_CHUNK_SIZE || --#endif -- mtd->oobsize < YAFFS_MIN_YAFFS2_SPARE_SIZE) { -+ if ((WRITE_SIZE(mtd) < YAFFS_MIN_YAFFS2_CHUNK_SIZE || -+ mtd->oobsize < YAFFS_MIN_YAFFS2_SPARE_SIZE) && -+ !options.inband_tags) { - T(YAFFS_TRACE_ALWAYS, - ("yaffs: MTD device does not have the " - "right page sizes\n")); -@@ -1735,7 +1969,7 @@ static struct super_block *yaffs_interna - if (!mtd->erase || - !mtd->read || - !mtd->write || --#if (LINUX_VERSION_CODE > KERNEL_VERSION(2,6,17)) -+#if (LINUX_VERSION_CODE > KERNEL_VERSION(2, 6, 17)) - !mtd->read_oob || !mtd->write_oob) { - #else - !mtd->write_ecc || -@@ -1761,7 +1995,7 @@ static struct super_block *yaffs_interna - * Set the yaffs_Device up for mtd - */ - --#if (LINUX_VERSION_CODE > KERNEL_VERSION(2,5,0)) -+#if (LINUX_VERSION_CODE > KERNEL_VERSION(2, 5, 0)) - sb->s_fs_info = dev = kmalloc(sizeof(yaffs_Device), GFP_KERNEL); - #else - sb->u.generic_sbp = dev = kmalloc(sizeof(yaffs_Device), GFP_KERNEL); -@@ -1780,13 +2014,15 @@ static struct super_block *yaffs_interna - - /* Set up the memory size parameters.... */ - -- nBlocks = mtd->size / (YAFFS_CHUNKS_PER_BLOCK * YAFFS_BYTES_PER_CHUNK); -+ nBlocks = YCALCBLOCKS(mtd->size, (YAFFS_CHUNKS_PER_BLOCK * YAFFS_BYTES_PER_CHUNK)); -+ - dev->startBlock = 0; - dev->endBlock = nBlocks - 1; - dev->nChunksPerBlock = YAFFS_CHUNKS_PER_BLOCK; -- dev->nDataBytesPerChunk = YAFFS_BYTES_PER_CHUNK; -+ dev->totalBytesPerChunk = YAFFS_BYTES_PER_CHUNK; - dev->nReservedBlocks = 5; - dev->nShortOpCaches = (options.no_cache) ? 0 : 10; -+ dev->inbandTags = options.inband_tags; - - /* ... and the functions. */ - if (yaffsVersion == 2) { -@@ -1798,20 +2034,19 @@ static struct super_block *yaffs_interna - dev->queryNANDBlock = nandmtd2_QueryNANDBlock; - dev->spareBuffer = YMALLOC(mtd->oobsize); - dev->isYaffs2 = 1; --#if (LINUX_VERSION_CODE > KERNEL_VERSION(2,6,17)) -- dev->nDataBytesPerChunk = mtd->writesize; -+#if (LINUX_VERSION_CODE > KERNEL_VERSION(2, 6, 17)) -+ dev->totalBytesPerChunk = mtd->writesize; - dev->nChunksPerBlock = mtd->erasesize / mtd->writesize; - #else -- dev->nDataBytesPerChunk = mtd->oobblock; -+ dev->totalBytesPerChunk = mtd->oobblock; - dev->nChunksPerBlock = mtd->erasesize / mtd->oobblock; - #endif -- nBlocks = mtd->size / mtd->erasesize; -+ nBlocks = YCALCBLOCKS(mtd->size, mtd->erasesize); - -- dev->nCheckpointReservedBlocks = CONFIG_YAFFS_CHECKPOINT_RESERVED_BLOCKS; - dev->startBlock = 0; - dev->endBlock = nBlocks - 1; - } else { --#if (LINUX_VERSION_CODE > KERNEL_VERSION(2,6,17)) -+#if (LINUX_VERSION_CODE > KERNEL_VERSION(2, 6, 17)) - /* use the MTD interface in yaffs_mtdif1.c */ - dev->writeChunkWithTagsToNAND = - nandmtd1_WriteChunkWithTagsToNAND; -@@ -1847,7 +2082,7 @@ static struct super_block *yaffs_interna - dev->skipCheckpointWrite = options.skip_checkpoint_write; - - /* we assume this is protected by lock_kernel() in mount/umount */ -- list_add_tail(&dev->devList, &yaffs_dev_list); -+ ylist_add_tail(&dev->devList, &yaffs_dev_list); - - init_MUTEX(&dev->grossLock); - -@@ -1884,20 +2119,23 @@ static struct super_block *yaffs_interna - return NULL; - } - sb->s_root = root; -+ sb->s_dirt = !dev->isCheckpointed; -+ T(YAFFS_TRACE_ALWAYS, -+ ("yaffs_read_super: isCheckpointed %d\n", dev->isCheckpointed)); - - T(YAFFS_TRACE_OS, ("yaffs_read_super: done\n")); - return sb; - } - - --#if (LINUX_VERSION_CODE > KERNEL_VERSION(2,5,0)) -+#if (LINUX_VERSION_CODE > KERNEL_VERSION(2, 5, 0)) - static int yaffs_internal_read_super_mtd(struct super_block *sb, void *data, - int silent) - { - return yaffs_internal_read_super(1, sb, data, silent) ? 0 : -EINVAL; - } - --#if (LINUX_VERSION_CODE > KERNEL_VERSION(2,6,17)) -+#if (LINUX_VERSION_CODE > KERNEL_VERSION(2, 6, 17)) - static int yaffs_read_super(struct file_system_type *fs, - int flags, const char *dev_name, - void *data, struct vfsmount *mnt) -@@ -1938,14 +2176,14 @@ static DECLARE_FSTYPE(yaffs_fs_type, "ya - - #ifdef CONFIG_YAFFS_YAFFS2 - --#if (LINUX_VERSION_CODE > KERNEL_VERSION(2,5,0)) -+#if (LINUX_VERSION_CODE > KERNEL_VERSION(2, 5, 0)) - static int yaffs2_internal_read_super_mtd(struct super_block *sb, void *data, - int silent) - { - return yaffs_internal_read_super(2, sb, data, silent) ? 0 : -EINVAL; - } - --#if (LINUX_VERSION_CODE > KERNEL_VERSION(2,6,17)) -+#if (LINUX_VERSION_CODE > KERNEL_VERSION(2, 6, 17)) - static int yaffs2_read_super(struct file_system_type *fs, - int flags, const char *dev_name, void *data, - struct vfsmount *mnt) -@@ -1990,12 +2228,12 @@ static char *yaffs_dump_dev(char *buf, y - { - buf += sprintf(buf, "startBlock......... %d\n", dev->startBlock); - buf += sprintf(buf, "endBlock........... %d\n", dev->endBlock); -+ buf += sprintf(buf, "totalBytesPerChunk. %d\n", dev->totalBytesPerChunk); - buf += sprintf(buf, "nDataBytesPerChunk. %d\n", dev->nDataBytesPerChunk); - buf += sprintf(buf, "chunkGroupBits..... %d\n", dev->chunkGroupBits); - buf += sprintf(buf, "chunkGroupSize..... %d\n", dev->chunkGroupSize); - buf += sprintf(buf, "nErasedBlocks...... %d\n", dev->nErasedBlocks); - buf += sprintf(buf, "nReservedBlocks.... %d\n", dev->nReservedBlocks); -- buf += sprintf(buf, "nCheckptResBlocks.. %d\n", dev->nCheckpointReservedBlocks); - buf += sprintf(buf, "blocksInCheckpoint. %d\n", dev->blocksInCheckpoint); - buf += sprintf(buf, "nTnodesCreated..... %d\n", dev->nTnodesCreated); - buf += sprintf(buf, "nFreeTnodes........ %d\n", dev->nFreeTnodes); -@@ -2006,10 +2244,8 @@ static char *yaffs_dump_dev(char *buf, y - buf += sprintf(buf, "nPageReads......... %d\n", dev->nPageReads); - buf += sprintf(buf, "nBlockErasures..... %d\n", dev->nBlockErasures); - buf += sprintf(buf, "nGCCopies.......... %d\n", dev->nGCCopies); -- buf += -- sprintf(buf, "garbageCollections. %d\n", dev->garbageCollections); -- buf += -- sprintf(buf, "passiveGCs......... %d\n", -+ buf += sprintf(buf, "garbageCollections. %d\n", dev->garbageCollections); -+ buf += sprintf(buf, "passiveGCs......... %d\n", - dev->passiveGarbageCollections); - buf += sprintf(buf, "nRetriedWrites..... %d\n", dev->nRetriedWrites); - buf += sprintf(buf, "nShortOpCaches..... %d\n", dev->nShortOpCaches); -@@ -2025,6 +2261,7 @@ static char *yaffs_dump_dev(char *buf, y - sprintf(buf, "nBackgroudDeletions %d\n", dev->nBackgroundDeletions); - buf += sprintf(buf, "useNANDECC......... %d\n", dev->useNANDECC); - buf += sprintf(buf, "isYaffs2........... %d\n", dev->isYaffs2); -+ buf += sprintf(buf, "inbandTags......... %d\n", dev->inbandTags); - - return buf; - } -@@ -2033,7 +2270,7 @@ static int yaffs_proc_read(char *page, - char **start, - off_t offset, int count, int *eof, void *data) - { -- struct list_head *item; -+ struct ylist_head *item; - char *buf = page; - int step = offset; - int n = 0; -@@ -2057,8 +2294,8 @@ static int yaffs_proc_read(char *page, - lock_kernel(); - - /* Locate and print the Nth entry. Order N-squared but N is small. */ -- list_for_each(item, &yaffs_dev_list) { -- yaffs_Device *dev = list_entry(item, yaffs_Device, devList); -+ ylist_for_each(item, &yaffs_dev_list) { -+ yaffs_Device *dev = ylist_entry(item, yaffs_Device, devList); - if (n < step) { - n++; - continue; -@@ -2119,7 +2356,7 @@ static int yaffs_proc_write(struct file - char *end; - char *mask_name; - const char *x; -- char substring[MAX_MASK_NAME_LENGTH+1]; -+ char substring[MAX_MASK_NAME_LENGTH + 1]; - int i; - int done = 0; - int add, len = 0; -@@ -2129,9 +2366,8 @@ static int yaffs_proc_write(struct file - - while (!done && (pos < count)) { - done = 1; -- while ((pos < count) && isspace(buf[pos])) { -+ while ((pos < count) && isspace(buf[pos])) - pos++; -- } - - switch (buf[pos]) { - case '+': -@@ -2148,20 +2384,21 @@ static int yaffs_proc_write(struct file - mask_name = NULL; - - mask_bitfield = simple_strtoul(buf + pos, &end, 0); -+ - if (end > buf + pos) { - mask_name = "numeral"; - len = end - (buf + pos); - pos += len; - done = 0; - } else { -- for(x = buf + pos, i = 0; -- (*x == '_' || (*x >='a' && *x <= 'z')) && -- i = 'a' && *x <= 'z')) && -+ i < MAX_MASK_NAME_LENGTH; x++, i++, pos++) -+ substring[i] = *x; - substring[i] = '\0'; - - for (i = 0; mask_flags[i].mask_name != NULL; i++) { -- if(strcmp(substring,mask_flags[i].mask_name) == 0){ -+ if (strcmp(substring, mask_flags[i].mask_name) == 0) { - mask_name = mask_flags[i].mask_name; - mask_bitfield = mask_flags[i].mask_bitfield; - done = 0; -@@ -2172,7 +2409,7 @@ static int yaffs_proc_write(struct file - - if (mask_name != NULL) { - done = 0; -- switch(add) { -+ switch (add) { - case '-': - rg &= ~mask_bitfield; - break; -@@ -2191,13 +2428,13 @@ static int yaffs_proc_write(struct file - - yaffs_traceMask = rg | YAFFS_TRACE_ALWAYS; - -- printk("new trace = 0x%08X\n",yaffs_traceMask); -+ printk(KERN_DEBUG "new trace = 0x%08X\n", yaffs_traceMask); - - if (rg & YAFFS_TRACE_ALWAYS) { - for (i = 0; mask_flags[i].mask_name != NULL; i++) { - char flag; - flag = ((rg & mask_flags[i].mask_bitfield) == mask_flags[i].mask_bitfield) ? '+' : '-'; -- printk("%c%s\n", flag, mask_flags[i].mask_name); -+ printk(KERN_DEBUG "%c%s\n", flag, mask_flags[i].mask_name); - } - } - -@@ -2211,12 +2448,8 @@ struct file_system_to_install { - }; - - static struct file_system_to_install fs_to_install[] = { --//#ifdef CONFIG_YAFFS_YAFFS1 - {&yaffs_fs_type, 0}, --//#endif --//#ifdef CONFIG_YAFFS_YAFFS2 - {&yaffs2_fs_type, 0}, --//#endif - {NULL, 0} - }; - -@@ -2231,15 +2464,14 @@ static int __init init_yaffs_fs(void) - /* Install the proc_fs entry */ - my_proc_entry = create_proc_entry("yaffs", - S_IRUGO | S_IFREG, -- &proc_root); -+ YPROC_ROOT); - - if (my_proc_entry) { - my_proc_entry->write_proc = yaffs_proc_write; - my_proc_entry->read_proc = yaffs_proc_read; - my_proc_entry->data = NULL; -- } else { -+ } else - return -ENOMEM; -- } - - /* Now add the file system entries */ - -@@ -2247,9 +2479,8 @@ static int __init init_yaffs_fs(void) - - while (fsinst->fst && !error) { - error = register_filesystem(fsinst->fst); -- if (!error) { -+ if (!error) - fsinst->installed = 1; -- } - fsinst++; - } - -@@ -2277,7 +2508,7 @@ static void __exit exit_yaffs_fs(void) - T(YAFFS_TRACE_ALWAYS, ("yaffs " __DATE__ " " __TIME__ - " removing. \n")); - -- remove_proc_entry("yaffs", &proc_root); -+ remove_proc_entry("yaffs", YPROC_ROOT); - - fsinst = fs_to_install; - -@@ -2288,7 +2519,6 @@ static void __exit exit_yaffs_fs(void) - } - fsinst++; - } -- - } - - module_init(init_yaffs_fs) ---- /dev/null -+++ b/fs/yaffs2/yaffs_getblockinfo.h -@@ -0,0 +1,34 @@ -+/* -+ * YAFFS: Yet another Flash File System . A NAND-flash specific file system. -+ * -+ * Copyright (C) 2002-2007 Aleph One Ltd. -+ * for Toby Churchill Ltd and Brightstar Engineering -+ * -+ * Created by Charles Manning -+ * -+ * This program is free software; you can redistribute it and/or modify -+ * it under the terms of the GNU Lesser General Public License version 2.1 as -+ * published by the Free Software Foundation. -+ * -+ * Note: Only YAFFS headers are LGPL, YAFFS C code is covered by GPL. -+ */ -+ -+#ifndef __YAFFS_GETBLOCKINFO_H__ -+#define __YAFFS_GETBLOCKINFO_H__ -+ -+#include "yaffs_guts.h" -+ -+/* Function to manipulate block info */ -+static Y_INLINE yaffs_BlockInfo *yaffs_GetBlockInfo(yaffs_Device * dev, int blk) -+{ -+ if (blk < dev->internalStartBlock || blk > dev->internalEndBlock) { -+ T(YAFFS_TRACE_ERROR, -+ (TSTR -+ ("**>> yaffs: getBlockInfo block %d is not valid" TENDSTR), -+ blk)); -+ YBUG(); -+ } -+ return &dev->blockInfo[blk - dev->internalStartBlock]; -+} -+ -+#endif ---- a/fs/yaffs2/yaffs_guts.c -+++ b/fs/yaffs2/yaffs_guts.c -@@ -12,16 +12,17 @@ - */ - - const char *yaffs_guts_c_version = -- "$Id: yaffs_guts.c,v 1.49 2007-05-15 20:07:40 charles Exp $"; -+ "$Id: yaffs_guts.c,v 1.82 2009-03-09 04:24:17 charles Exp $"; - - #include "yportenv.h" - - #include "yaffsinterface.h" - #include "yaffs_guts.h" - #include "yaffs_tagsvalidity.h" -+#include "yaffs_getblockinfo.h" - - #include "yaffs_tagscompat.h" --#ifndef CONFIG_YAFFS_USE_OWN_SORT -+#ifndef CONFIG_YAFFS_USE_OWN_SORT - #include "yaffs_qsort.h" - #endif - #include "yaffs_nand.h" -@@ -32,116 +33,116 @@ const char *yaffs_guts_c_version = - #include "yaffs_packedtags2.h" - - --#ifdef CONFIG_YAFFS_WINCE --void yfsd_LockYAFFS(BOOL fsLockOnly); --void yfsd_UnlockYAFFS(BOOL fsLockOnly); --#endif -- - #define YAFFS_PASSIVE_GC_CHUNKS 2 - - #include "yaffs_ecc.h" - - - /* Robustification (if it ever comes about...) */ --static void yaffs_RetireBlock(yaffs_Device * dev, int blockInNAND); --static void yaffs_HandleWriteChunkError(yaffs_Device * dev, int chunkInNAND, int erasedOk); --static void yaffs_HandleWriteChunkOk(yaffs_Device * dev, int chunkInNAND, -- const __u8 * data, -- const yaffs_ExtendedTags * tags); --static void yaffs_HandleUpdateChunk(yaffs_Device * dev, int chunkInNAND, -- const yaffs_ExtendedTags * tags); -+static void yaffs_RetireBlock(yaffs_Device *dev, int blockInNAND); -+static void yaffs_HandleWriteChunkError(yaffs_Device *dev, int chunkInNAND, -+ int erasedOk); -+static void yaffs_HandleWriteChunkOk(yaffs_Device *dev, int chunkInNAND, -+ const __u8 *data, -+ const yaffs_ExtendedTags *tags); -+static void yaffs_HandleUpdateChunk(yaffs_Device *dev, int chunkInNAND, -+ const yaffs_ExtendedTags *tags); - - /* Other local prototypes */ --static int yaffs_UnlinkObject( yaffs_Object *obj); -+static int yaffs_UnlinkObject(yaffs_Object *obj); - static int yaffs_ObjectHasCachedWriteData(yaffs_Object *obj); - - static void yaffs_HardlinkFixup(yaffs_Device *dev, yaffs_Object *hardList); - --static int yaffs_WriteNewChunkWithTagsToNAND(yaffs_Device * dev, -- const __u8 * buffer, -- yaffs_ExtendedTags * tags, -- int useReserve); --static int yaffs_PutChunkIntoFile(yaffs_Object * in, int chunkInInode, -- int chunkInNAND, int inScan); -- --static yaffs_Object *yaffs_CreateNewObject(yaffs_Device * dev, int number, -- yaffs_ObjectType type); --static void yaffs_AddObjectToDirectory(yaffs_Object * directory, -- yaffs_Object * obj); --static int yaffs_UpdateObjectHeader(yaffs_Object * in, const YCHAR * name, -- int force, int isShrink, int shadows); --static void yaffs_RemoveObjectFromDirectory(yaffs_Object * obj); -+static int yaffs_WriteNewChunkWithTagsToNAND(yaffs_Device *dev, -+ const __u8 *buffer, -+ yaffs_ExtendedTags *tags, -+ int useReserve); -+static int yaffs_PutChunkIntoFile(yaffs_Object *in, int chunkInInode, -+ int chunkInNAND, int inScan); -+ -+static yaffs_Object *yaffs_CreateNewObject(yaffs_Device *dev, int number, -+ yaffs_ObjectType type); -+static void yaffs_AddObjectToDirectory(yaffs_Object *directory, -+ yaffs_Object *obj); -+static int yaffs_UpdateObjectHeader(yaffs_Object *in, const YCHAR *name, -+ int force, int isShrink, int shadows); -+static void yaffs_RemoveObjectFromDirectory(yaffs_Object *obj); - static int yaffs_CheckStructures(void); --static int yaffs_DeleteWorker(yaffs_Object * in, yaffs_Tnode * tn, __u32 level, -- int chunkOffset, int *limit); --static int yaffs_DoGenericObjectDeletion(yaffs_Object * in); -- --static yaffs_BlockInfo *yaffs_GetBlockInfo(yaffs_Device * dev, int blockNo); -- --static __u8 *yaffs_GetTempBuffer(yaffs_Device * dev, int lineNo); --static void yaffs_ReleaseTempBuffer(yaffs_Device * dev, __u8 * buffer, -- int lineNo); -+static int yaffs_DeleteWorker(yaffs_Object *in, yaffs_Tnode *tn, __u32 level, -+ int chunkOffset, int *limit); -+static int yaffs_DoGenericObjectDeletion(yaffs_Object *in); -+ -+static yaffs_BlockInfo *yaffs_GetBlockInfo(yaffs_Device *dev, int blockNo); - --static int yaffs_CheckChunkErased(struct yaffs_DeviceStruct *dev, -- int chunkInNAND); - --static int yaffs_UnlinkWorker(yaffs_Object * obj); --static void yaffs_DestroyObject(yaffs_Object * obj); -+static int yaffs_CheckChunkErased(struct yaffs_DeviceStruct *dev, -+ int chunkInNAND); - --static int yaffs_TagsMatch(const yaffs_ExtendedTags * tags, int objectId, -- int chunkInObject); -+static int yaffs_UnlinkWorker(yaffs_Object *obj); - --loff_t yaffs_GetFileSize(yaffs_Object * obj); -+static int yaffs_TagsMatch(const yaffs_ExtendedTags *tags, int objectId, -+ int chunkInObject); - --static int yaffs_AllocateChunk(yaffs_Device * dev, int useReserve, yaffs_BlockInfo **blockUsedPtr); -+static int yaffs_AllocateChunk(yaffs_Device *dev, int useReserve, -+ yaffs_BlockInfo **blockUsedPtr); - --static void yaffs_VerifyFreeChunks(yaffs_Device * dev); -+static void yaffs_VerifyFreeChunks(yaffs_Device *dev); - - static void yaffs_CheckObjectDetailsLoaded(yaffs_Object *in); - -+static void yaffs_VerifyDirectory(yaffs_Object *directory); - #ifdef YAFFS_PARANOID --static int yaffs_CheckFileSanity(yaffs_Object * in); -+static int yaffs_CheckFileSanity(yaffs_Object *in); - #else - #define yaffs_CheckFileSanity(in) - #endif - --static void yaffs_InvalidateWholeChunkCache(yaffs_Object * in); --static void yaffs_InvalidateChunkCache(yaffs_Object * object, int chunkId); -+static void yaffs_InvalidateWholeChunkCache(yaffs_Object *in); -+static void yaffs_InvalidateChunkCache(yaffs_Object *object, int chunkId); - - static void yaffs_InvalidateCheckpoint(yaffs_Device *dev); - --static int yaffs_FindChunkInFile(yaffs_Object * in, int chunkInInode, -- yaffs_ExtendedTags * tags); -+static int yaffs_FindChunkInFile(yaffs_Object *in, int chunkInInode, -+ yaffs_ExtendedTags *tags); - --static __u32 yaffs_GetChunkGroupBase(yaffs_Device *dev, yaffs_Tnode *tn, unsigned pos); --static yaffs_Tnode *yaffs_FindLevel0Tnode(yaffs_Device * dev, -- yaffs_FileStructure * fStruct, -- __u32 chunkId); -+static __u32 yaffs_GetChunkGroupBase(yaffs_Device *dev, yaffs_Tnode *tn, -+ unsigned pos); -+static yaffs_Tnode *yaffs_FindLevel0Tnode(yaffs_Device *dev, -+ yaffs_FileStructure *fStruct, -+ __u32 chunkId); - - - /* Function to calculate chunk and offset */ - --static void yaffs_AddrToChunk(yaffs_Device *dev, loff_t addr, __u32 *chunk, __u32 *offset) -+static void yaffs_AddrToChunk(yaffs_Device *dev, loff_t addr, int *chunkOut, -+ __u32 *offsetOut) - { -- if(dev->chunkShift){ -- /* Easy-peasy power of 2 case */ -- *chunk = (__u32)(addr >> dev->chunkShift); -- *offset = (__u32)(addr & dev->chunkMask); -- } -- else if(dev->crumbsPerChunk) -- { -- /* Case where we're using "crumbs" */ -- *offset = (__u32)(addr & dev->crumbMask); -- addr >>= dev->crumbShift; -- *chunk = ((__u32)addr)/dev->crumbsPerChunk; -- *offset += ((addr - (*chunk * dev->crumbsPerChunk)) << dev->crumbShift); -+ int chunk; -+ __u32 offset; -+ -+ chunk = (__u32)(addr >> dev->chunkShift); -+ -+ if (dev->chunkDiv == 1) { -+ /* easy power of 2 case */ -+ offset = (__u32)(addr & dev->chunkMask); -+ } else { -+ /* Non power-of-2 case */ -+ -+ loff_t chunkBase; -+ -+ chunk /= dev->chunkDiv; -+ -+ chunkBase = ((loff_t)chunk) * dev->nDataBytesPerChunk; -+ offset = (__u32)(addr - chunkBase); - } -- else -- YBUG(); -+ -+ *chunkOut = chunk; -+ *offsetOut = offset; - } - --/* Function to return the number of shifts for a power of 2 greater than or equal -- * to the given number -+/* Function to return the number of shifts for a power of 2 greater than or -+ * equal to the given number - * Note we don't try to cater for all possible numbers and this does not have to - * be hellishly efficient. - */ -@@ -153,13 +154,14 @@ static __u32 ShiftsGE(__u32 x) - - nShifts = extraBits = 0; - -- while(x>1){ -- if(x & 1) extraBits++; -- x>>=1; -+ while (x > 1) { -+ if (x & 1) -+ extraBits++; -+ x >>= 1; - nShifts++; - } - -- if(extraBits) -+ if (extraBits) - nShifts++; - - return nShifts; -@@ -168,16 +170,17 @@ static __u32 ShiftsGE(__u32 x) - /* Function to return the number of shifts to get a 1 in bit 0 - */ - --static __u32 ShiftDiv(__u32 x) -+static __u32 Shifts(__u32 x) - { - int nShifts; - - nShifts = 0; - -- if(!x) return 0; -+ if (!x) -+ return 0; - -- while( !(x&1)){ -- x>>=1; -+ while (!(x&1)) { -+ x >>= 1; - nShifts++; - } - -@@ -195,21 +198,25 @@ static int yaffs_InitialiseTempBuffers(y - int i; - __u8 *buf = (__u8 *)1; - -- memset(dev->tempBuffer,0,sizeof(dev->tempBuffer)); -+ memset(dev->tempBuffer, 0, sizeof(dev->tempBuffer)); - - for (i = 0; buf && i < YAFFS_N_TEMP_BUFFERS; i++) { - dev->tempBuffer[i].line = 0; /* not in use */ - dev->tempBuffer[i].buffer = buf = -- YMALLOC_DMA(dev->nDataBytesPerChunk); -+ YMALLOC_DMA(dev->totalBytesPerChunk); - } - - return buf ? YAFFS_OK : YAFFS_FAIL; -- - } - --static __u8 *yaffs_GetTempBuffer(yaffs_Device * dev, int lineNo) -+__u8 *yaffs_GetTempBuffer(yaffs_Device *dev, int lineNo) - { - int i, j; -+ -+ dev->tempInUse++; -+ if (dev->tempInUse > dev->maxTemp) -+ dev->maxTemp = dev->tempInUse; -+ - for (i = 0; i < YAFFS_N_TEMP_BUFFERS; i++) { - if (dev->tempBuffer[i].line == 0) { - dev->tempBuffer[i].line = lineNo; -@@ -227,9 +234,9 @@ static __u8 *yaffs_GetTempBuffer(yaffs_D - T(YAFFS_TRACE_BUFFERS, - (TSTR("Out of temp buffers at line %d, other held by lines:"), - lineNo)); -- for (i = 0; i < YAFFS_N_TEMP_BUFFERS; i++) { -+ for (i = 0; i < YAFFS_N_TEMP_BUFFERS; i++) - T(YAFFS_TRACE_BUFFERS, (TSTR(" %d "), dev->tempBuffer[i].line)); -- } -+ - T(YAFFS_TRACE_BUFFERS, (TSTR(" " TENDSTR))); - - /* -@@ -242,10 +249,13 @@ static __u8 *yaffs_GetTempBuffer(yaffs_D - - } - --static void yaffs_ReleaseTempBuffer(yaffs_Device * dev, __u8 * buffer, -+void yaffs_ReleaseTempBuffer(yaffs_Device *dev, __u8 *buffer, - int lineNo) - { - int i; -+ -+ dev->tempInUse--; -+ - for (i = 0; i < YAFFS_N_TEMP_BUFFERS; i++) { - if (dev->tempBuffer[i].buffer == buffer) { - dev->tempBuffer[i].line = 0; -@@ -267,27 +277,26 @@ static void yaffs_ReleaseTempBuffer(yaff - /* - * Determine if we have a managed buffer. - */ --int yaffs_IsManagedTempBuffer(yaffs_Device * dev, const __u8 * buffer) -+int yaffs_IsManagedTempBuffer(yaffs_Device *dev, const __u8 *buffer) - { - int i; -+ - for (i = 0; i < YAFFS_N_TEMP_BUFFERS; i++) { - if (dev->tempBuffer[i].buffer == buffer) - return 1; -+ } - -+ for (i = 0; i < dev->nShortOpCaches; i++) { -+ if (dev->srCache[i].data == buffer) -+ return 1; - } - -- for (i = 0; i < dev->nShortOpCaches; i++) { -- if( dev->srCache[i].data == buffer ) -- return 1; -- -- } -- -- if (buffer == dev->checkpointBuffer) -- return 1; -- -- T(YAFFS_TRACE_ALWAYS, -- (TSTR("yaffs: unmaged buffer detected.\n" TENDSTR))); -- return 0; -+ if (buffer == dev->checkpointBuffer) -+ return 1; -+ -+ T(YAFFS_TRACE_ALWAYS, -+ (TSTR("yaffs: unmaged buffer detected.\n" TENDSTR))); -+ return 0; - } - - -@@ -296,62 +305,63 @@ int yaffs_IsManagedTempBuffer(yaffs_Devi - * Chunk bitmap manipulations - */ - --static Y_INLINE __u8 *yaffs_BlockBits(yaffs_Device * dev, int blk) -+static Y_INLINE __u8 *yaffs_BlockBits(yaffs_Device *dev, int blk) - { - if (blk < dev->internalStartBlock || blk > dev->internalEndBlock) { - T(YAFFS_TRACE_ERROR, -- (TSTR("**>> yaffs: BlockBits block %d is not valid" TENDSTR), -- blk)); -+ (TSTR("**>> yaffs: BlockBits block %d is not valid" TENDSTR), -+ blk)); - YBUG(); - } - return dev->chunkBits + -- (dev->chunkBitmapStride * (blk - dev->internalStartBlock)); -+ (dev->chunkBitmapStride * (blk - dev->internalStartBlock)); - } - - static Y_INLINE void yaffs_VerifyChunkBitId(yaffs_Device *dev, int blk, int chunk) - { -- if(blk < dev->internalStartBlock || blk > dev->internalEndBlock || -- chunk < 0 || chunk >= dev->nChunksPerBlock) { -- T(YAFFS_TRACE_ERROR, -- (TSTR("**>> yaffs: Chunk Id (%d:%d) invalid"TENDSTR),blk,chunk)); -- YBUG(); -+ if (blk < dev->internalStartBlock || blk > dev->internalEndBlock || -+ chunk < 0 || chunk >= dev->nChunksPerBlock) { -+ T(YAFFS_TRACE_ERROR, -+ (TSTR("**>> yaffs: Chunk Id (%d:%d) invalid"TENDSTR), -+ blk, chunk)); -+ YBUG(); - } - } - --static Y_INLINE void yaffs_ClearChunkBits(yaffs_Device * dev, int blk) -+static Y_INLINE void yaffs_ClearChunkBits(yaffs_Device *dev, int blk) - { - __u8 *blkBits = yaffs_BlockBits(dev, blk); - - memset(blkBits, 0, dev->chunkBitmapStride); - } - --static Y_INLINE void yaffs_ClearChunkBit(yaffs_Device * dev, int blk, int chunk) -+static Y_INLINE void yaffs_ClearChunkBit(yaffs_Device *dev, int blk, int chunk) - { - __u8 *blkBits = yaffs_BlockBits(dev, blk); - -- yaffs_VerifyChunkBitId(dev,blk,chunk); -+ yaffs_VerifyChunkBitId(dev, blk, chunk); - - blkBits[chunk / 8] &= ~(1 << (chunk & 7)); - } - --static Y_INLINE void yaffs_SetChunkBit(yaffs_Device * dev, int blk, int chunk) -+static Y_INLINE void yaffs_SetChunkBit(yaffs_Device *dev, int blk, int chunk) - { - __u8 *blkBits = yaffs_BlockBits(dev, blk); - -- yaffs_VerifyChunkBitId(dev,blk,chunk); -+ yaffs_VerifyChunkBitId(dev, blk, chunk); - - blkBits[chunk / 8] |= (1 << (chunk & 7)); - } - --static Y_INLINE int yaffs_CheckChunkBit(yaffs_Device * dev, int blk, int chunk) -+static Y_INLINE int yaffs_CheckChunkBit(yaffs_Device *dev, int blk, int chunk) - { - __u8 *blkBits = yaffs_BlockBits(dev, blk); -- yaffs_VerifyChunkBitId(dev,blk,chunk); -+ yaffs_VerifyChunkBitId(dev, blk, chunk); - - return (blkBits[chunk / 8] & (1 << (chunk & 7))) ? 1 : 0; - } - --static Y_INLINE int yaffs_StillSomeChunkBits(yaffs_Device * dev, int blk) -+static Y_INLINE int yaffs_StillSomeChunkBits(yaffs_Device *dev, int blk) - { - __u8 *blkBits = yaffs_BlockBits(dev, blk); - int i; -@@ -363,17 +373,17 @@ static Y_INLINE int yaffs_StillSomeChunk - return 0; - } - --static int yaffs_CountChunkBits(yaffs_Device * dev, int blk) -+static int yaffs_CountChunkBits(yaffs_Device *dev, int blk) - { - __u8 *blkBits = yaffs_BlockBits(dev, blk); - int i; - int n = 0; - for (i = 0; i < dev->chunkBitmapStride; i++) { - __u8 x = *blkBits; -- while(x){ -- if(x & 1) -+ while (x) { -+ if (x & 1) - n++; -- x >>=1; -+ x >>= 1; - } - - blkBits++; -@@ -400,7 +410,7 @@ static int yaffs_SkipNANDVerification(ya - return !(yaffs_traceMask & (YAFFS_TRACE_VERIFY_NAND)); - } - --static const char * blockStateName[] = { -+static const char *blockStateName[] = { - "Unknown", - "Needs scanning", - "Scanning", -@@ -413,64 +423,65 @@ static const char * blockStateName[] = { - "Dead" - }; - --static void yaffs_VerifyBlock(yaffs_Device *dev,yaffs_BlockInfo *bi,int n) -+static void yaffs_VerifyBlock(yaffs_Device *dev, yaffs_BlockInfo *bi, int n) - { - int actuallyUsed; - int inUse; - -- if(yaffs_SkipVerification(dev)) -+ if (yaffs_SkipVerification(dev)) - return; - - /* Report illegal runtime states */ -- if(bi->blockState <0 || bi->blockState >= YAFFS_NUMBER_OF_BLOCK_STATES) -- T(YAFFS_TRACE_VERIFY,(TSTR("Block %d has undefined state %d"TENDSTR),n,bi->blockState)); -+ if (bi->blockState >= YAFFS_NUMBER_OF_BLOCK_STATES) -+ T(YAFFS_TRACE_VERIFY, (TSTR("Block %d has undefined state %d"TENDSTR), n, bi->blockState)); - -- switch(bi->blockState){ -- case YAFFS_BLOCK_STATE_UNKNOWN: -- case YAFFS_BLOCK_STATE_SCANNING: -- case YAFFS_BLOCK_STATE_NEEDS_SCANNING: -- T(YAFFS_TRACE_VERIFY,(TSTR("Block %d has bad run-state %s"TENDSTR), -- n,blockStateName[bi->blockState])); -+ switch (bi->blockState) { -+ case YAFFS_BLOCK_STATE_UNKNOWN: -+ case YAFFS_BLOCK_STATE_SCANNING: -+ case YAFFS_BLOCK_STATE_NEEDS_SCANNING: -+ T(YAFFS_TRACE_VERIFY, (TSTR("Block %d has bad run-state %s"TENDSTR), -+ n, blockStateName[bi->blockState])); - } - - /* Check pages in use and soft deletions are legal */ - - actuallyUsed = bi->pagesInUse - bi->softDeletions; - -- if(bi->pagesInUse < 0 || bi->pagesInUse > dev->nChunksPerBlock || -+ if (bi->pagesInUse < 0 || bi->pagesInUse > dev->nChunksPerBlock || - bi->softDeletions < 0 || bi->softDeletions > dev->nChunksPerBlock || - actuallyUsed < 0 || actuallyUsed > dev->nChunksPerBlock) -- T(YAFFS_TRACE_VERIFY,(TSTR("Block %d has illegal values pagesInUsed %d softDeletions %d"TENDSTR), -- n,bi->pagesInUse,bi->softDeletions)); -+ T(YAFFS_TRACE_VERIFY, (TSTR("Block %d has illegal values pagesInUsed %d softDeletions %d"TENDSTR), -+ n, bi->pagesInUse, bi->softDeletions)); - - - /* Check chunk bitmap legal */ -- inUse = yaffs_CountChunkBits(dev,n); -- if(inUse != bi->pagesInUse) -- T(YAFFS_TRACE_VERIFY,(TSTR("Block %d has inconsistent values pagesInUse %d counted chunk bits %d"TENDSTR), -- n,bi->pagesInUse,inUse)); -+ inUse = yaffs_CountChunkBits(dev, n); -+ if (inUse != bi->pagesInUse) -+ T(YAFFS_TRACE_VERIFY, (TSTR("Block %d has inconsistent values pagesInUse %d counted chunk bits %d"TENDSTR), -+ n, bi->pagesInUse, inUse)); - - /* Check that the sequence number is valid. - * Ten million is legal, but is very unlikely - */ -- if(dev->isYaffs2 && -+ if (dev->isYaffs2 && - (bi->blockState == YAFFS_BLOCK_STATE_ALLOCATING || bi->blockState == YAFFS_BLOCK_STATE_FULL) && -- (bi->sequenceNumber < YAFFS_LOWEST_SEQUENCE_NUMBER || bi->sequenceNumber > 10000000 )) -- T(YAFFS_TRACE_VERIFY,(TSTR("Block %d has suspect sequence number of %d"TENDSTR), -- n,bi->sequenceNumber)); -- -+ (bi->sequenceNumber < YAFFS_LOWEST_SEQUENCE_NUMBER || bi->sequenceNumber > 10000000)) -+ T(YAFFS_TRACE_VERIFY, (TSTR("Block %d has suspect sequence number of %d"TENDSTR), -+ n, bi->sequenceNumber)); - } - --static void yaffs_VerifyCollectedBlock(yaffs_Device *dev,yaffs_BlockInfo *bi,int n) -+static void yaffs_VerifyCollectedBlock(yaffs_Device *dev, yaffs_BlockInfo *bi, -+ int n) - { -- yaffs_VerifyBlock(dev,bi,n); -+ yaffs_VerifyBlock(dev, bi, n); - - /* After collection the block should be in the erased state */ -- /* TODO: This will need to change if we do partial gc */ -+ /* This will need to change if we do partial gc */ - -- if(bi->blockState != YAFFS_BLOCK_STATE_EMPTY){ -- T(YAFFS_TRACE_ERROR,(TSTR("Block %d is in state %d after gc, should be erased"TENDSTR), -- n,bi->blockState)); -+ if (bi->blockState != YAFFS_BLOCK_STATE_COLLECTING && -+ bi->blockState != YAFFS_BLOCK_STATE_EMPTY) { -+ T(YAFFS_TRACE_ERROR, (TSTR("Block %d is in state %d after gc, should be erased"TENDSTR), -+ n, bi->blockState)); - } - } - -@@ -480,52 +491,49 @@ static void yaffs_VerifyBlocks(yaffs_Dev - int nBlocksPerState[YAFFS_NUMBER_OF_BLOCK_STATES]; - int nIllegalBlockStates = 0; - -- -- if(yaffs_SkipVerification(dev)) -+ if (yaffs_SkipVerification(dev)) - return; - -- memset(nBlocksPerState,0,sizeof(nBlocksPerState)); -- -+ memset(nBlocksPerState, 0, sizeof(nBlocksPerState)); - -- for(i = dev->internalStartBlock; i <= dev->internalEndBlock; i++){ -- yaffs_BlockInfo *bi = yaffs_GetBlockInfo(dev,i); -- yaffs_VerifyBlock(dev,bi,i); -+ for (i = dev->internalStartBlock; i <= dev->internalEndBlock; i++) { -+ yaffs_BlockInfo *bi = yaffs_GetBlockInfo(dev, i); -+ yaffs_VerifyBlock(dev, bi, i); - -- if(bi->blockState >=0 && bi->blockState < YAFFS_NUMBER_OF_BLOCK_STATES) -+ if (bi->blockState < YAFFS_NUMBER_OF_BLOCK_STATES) - nBlocksPerState[bi->blockState]++; - else - nIllegalBlockStates++; -- - } - -- T(YAFFS_TRACE_VERIFY,(TSTR(""TENDSTR))); -- T(YAFFS_TRACE_VERIFY,(TSTR("Block summary"TENDSTR))); -+ T(YAFFS_TRACE_VERIFY, (TSTR(""TENDSTR))); -+ T(YAFFS_TRACE_VERIFY, (TSTR("Block summary"TENDSTR))); - -- T(YAFFS_TRACE_VERIFY,(TSTR("%d blocks have illegal states"TENDSTR),nIllegalBlockStates)); -- if(nBlocksPerState[YAFFS_BLOCK_STATE_ALLOCATING] > 1) -- T(YAFFS_TRACE_VERIFY,(TSTR("Too many allocating blocks"TENDSTR))); -+ T(YAFFS_TRACE_VERIFY, (TSTR("%d blocks have illegal states"TENDSTR), nIllegalBlockStates)); -+ if (nBlocksPerState[YAFFS_BLOCK_STATE_ALLOCATING] > 1) -+ T(YAFFS_TRACE_VERIFY, (TSTR("Too many allocating blocks"TENDSTR))); - -- for(i = 0; i < YAFFS_NUMBER_OF_BLOCK_STATES; i++) -+ for (i = 0; i < YAFFS_NUMBER_OF_BLOCK_STATES; i++) - T(YAFFS_TRACE_VERIFY, - (TSTR("%s %d blocks"TENDSTR), -- blockStateName[i],nBlocksPerState[i])); -+ blockStateName[i], nBlocksPerState[i])); - -- if(dev->blocksInCheckpoint != nBlocksPerState[YAFFS_BLOCK_STATE_CHECKPOINT]) -+ if (dev->blocksInCheckpoint != nBlocksPerState[YAFFS_BLOCK_STATE_CHECKPOINT]) - T(YAFFS_TRACE_VERIFY, - (TSTR("Checkpoint block count wrong dev %d count %d"TENDSTR), - dev->blocksInCheckpoint, nBlocksPerState[YAFFS_BLOCK_STATE_CHECKPOINT])); - -- if(dev->nErasedBlocks != nBlocksPerState[YAFFS_BLOCK_STATE_EMPTY]) -+ if (dev->nErasedBlocks != nBlocksPerState[YAFFS_BLOCK_STATE_EMPTY]) - T(YAFFS_TRACE_VERIFY, - (TSTR("Erased block count wrong dev %d count %d"TENDSTR), - dev->nErasedBlocks, nBlocksPerState[YAFFS_BLOCK_STATE_EMPTY])); - -- if(nBlocksPerState[YAFFS_BLOCK_STATE_COLLECTING] > 1) -+ if (nBlocksPerState[YAFFS_BLOCK_STATE_COLLECTING] > 1) - T(YAFFS_TRACE_VERIFY, - (TSTR("Too many collecting blocks %d (max is 1)"TENDSTR), - nBlocksPerState[YAFFS_BLOCK_STATE_COLLECTING])); - -- T(YAFFS_TRACE_VERIFY,(TSTR(""TENDSTR))); -+ T(YAFFS_TRACE_VERIFY, (TSTR(""TENDSTR))); - - } - -@@ -535,26 +543,26 @@ static void yaffs_VerifyBlocks(yaffs_Dev - */ - static void yaffs_VerifyObjectHeader(yaffs_Object *obj, yaffs_ObjectHeader *oh, yaffs_ExtendedTags *tags, int parentCheck) - { -- if(yaffs_SkipVerification(obj->myDev)) -+ if (obj && yaffs_SkipVerification(obj->myDev)) - return; - -- if(!(tags && obj && oh)){ -- T(YAFFS_TRACE_VERIFY, -- (TSTR("Verifying object header tags %x obj %x oh %x"TENDSTR), -- (__u32)tags,(__u32)obj,(__u32)oh)); -+ if (!(tags && obj && oh)) { -+ T(YAFFS_TRACE_VERIFY, -+ (TSTR("Verifying object header tags %x obj %x oh %x"TENDSTR), -+ (__u32)tags, (__u32)obj, (__u32)oh)); - return; - } - -- if(oh->type <= YAFFS_OBJECT_TYPE_UNKNOWN || -- oh->type > YAFFS_OBJECT_TYPE_MAX) -- T(YAFFS_TRACE_VERIFY, -- (TSTR("Obj %d header type is illegal value 0x%x"TENDSTR), -- tags->objectId, oh->type)); -- -- if(tags->objectId != obj->objectId) -- T(YAFFS_TRACE_VERIFY, -- (TSTR("Obj %d header mismatch objectId %d"TENDSTR), -- tags->objectId, obj->objectId)); -+ if (oh->type <= YAFFS_OBJECT_TYPE_UNKNOWN || -+ oh->type > YAFFS_OBJECT_TYPE_MAX) -+ T(YAFFS_TRACE_VERIFY, -+ (TSTR("Obj %d header type is illegal value 0x%x"TENDSTR), -+ tags->objectId, oh->type)); -+ -+ if (tags->objectId != obj->objectId) -+ T(YAFFS_TRACE_VERIFY, -+ (TSTR("Obj %d header mismatch objectId %d"TENDSTR), -+ tags->objectId, obj->objectId)); - - - /* -@@ -563,46 +571,43 @@ static void yaffs_VerifyObjectHeader(yaf - * Tests do not apply to the root object. - */ - -- if(parentCheck && tags->objectId > 1 && !obj->parent) -- T(YAFFS_TRACE_VERIFY, -- (TSTR("Obj %d header mismatch parentId %d obj->parent is NULL"TENDSTR), -- tags->objectId, oh->parentObjectId)); -- -- -- if(parentCheck && obj->parent && -- oh->parentObjectId != obj->parent->objectId && -- (oh->parentObjectId != YAFFS_OBJECTID_UNLINKED || -- obj->parent->objectId != YAFFS_OBJECTID_DELETED)) -- T(YAFFS_TRACE_VERIFY, -- (TSTR("Obj %d header mismatch parentId %d parentObjectId %d"TENDSTR), -- tags->objectId, oh->parentObjectId, obj->parent->objectId)); -+ if (parentCheck && tags->objectId > 1 && !obj->parent) -+ T(YAFFS_TRACE_VERIFY, -+ (TSTR("Obj %d header mismatch parentId %d obj->parent is NULL"TENDSTR), -+ tags->objectId, oh->parentObjectId)); - -+ if (parentCheck && obj->parent && -+ oh->parentObjectId != obj->parent->objectId && -+ (oh->parentObjectId != YAFFS_OBJECTID_UNLINKED || -+ obj->parent->objectId != YAFFS_OBJECTID_DELETED)) -+ T(YAFFS_TRACE_VERIFY, -+ (TSTR("Obj %d header mismatch parentId %d parentObjectId %d"TENDSTR), -+ tags->objectId, oh->parentObjectId, obj->parent->objectId)); - -- if(tags->objectId > 1 && oh->name[0] == 0) /* Null name */ -+ if (tags->objectId > 1 && oh->name[0] == 0) /* Null name */ - T(YAFFS_TRACE_VERIFY, -- (TSTR("Obj %d header name is NULL"TENDSTR), -- obj->objectId)); -+ (TSTR("Obj %d header name is NULL"TENDSTR), -+ obj->objectId)); - -- if(tags->objectId > 1 && ((__u8)(oh->name[0])) == 0xff) /* Trashed name */ -+ if (tags->objectId > 1 && ((__u8)(oh->name[0])) == 0xff) /* Trashed name */ - T(YAFFS_TRACE_VERIFY, -- (TSTR("Obj %d header name is 0xFF"TENDSTR), -- obj->objectId)); -+ (TSTR("Obj %d header name is 0xFF"TENDSTR), -+ obj->objectId)); - } - - - --static int yaffs_VerifyTnodeWorker(yaffs_Object * obj, yaffs_Tnode * tn, -- __u32 level, int chunkOffset) -+static int yaffs_VerifyTnodeWorker(yaffs_Object *obj, yaffs_Tnode *tn, -+ __u32 level, int chunkOffset) - { - int i; - yaffs_Device *dev = obj->myDev; - int ok = 1; -- int nTnodeBytes = (dev->tnodeWidth * YAFFS_NTNODES_LEVEL0)/8; - - if (tn) { - if (level > 0) { - -- for (i = 0; i < YAFFS_NTNODES_INTERNAL && ok; i++){ -+ for (i = 0; i < YAFFS_NTNODES_INTERNAL && ok; i++) { - if (tn->internal[i]) { - ok = yaffs_VerifyTnodeWorker(obj, - tn->internal[i], -@@ -611,20 +616,19 @@ static int yaffs_VerifyTnodeWorker(yaffs - } - } - } else if (level == 0) { -- int i; - yaffs_ExtendedTags tags; - __u32 objectId = obj->objectId; - - chunkOffset <<= YAFFS_TNODES_LEVEL0_BITS; - -- for(i = 0; i < YAFFS_NTNODES_LEVEL0; i++){ -- __u32 theChunk = yaffs_GetChunkGroupBase(dev,tn,i); -+ for (i = 0; i < YAFFS_NTNODES_LEVEL0; i++) { -+ __u32 theChunk = yaffs_GetChunkGroupBase(dev, tn, i); - -- if(theChunk > 0){ -+ if (theChunk > 0) { - /* T(~0,(TSTR("verifying (%d:%d) %d"TENDSTR),tags.objectId,tags.chunkId,theChunk)); */ -- yaffs_ReadChunkWithTagsFromNAND(dev,theChunk,NULL, &tags); -- if(tags.objectId != objectId || tags.chunkId != chunkOffset){ -- T(~0,(TSTR("Object %d chunkId %d NAND mismatch chunk %d tags (%d:%d)"TENDSTR), -+ yaffs_ReadChunkWithTagsFromNAND(dev, theChunk, NULL, &tags); -+ if (tags.objectId != objectId || tags.chunkId != chunkOffset) { -+ T(~0, (TSTR("Object %d chunkId %d NAND mismatch chunk %d tags (%d:%d)"TENDSTR), - objectId, chunkOffset, theChunk, - tags.objectId, tags.chunkId)); - } -@@ -646,13 +650,15 @@ static void yaffs_VerifyFile(yaffs_Objec - __u32 lastChunk; - __u32 x; - __u32 i; -- int ok; - yaffs_Device *dev; - yaffs_ExtendedTags tags; - yaffs_Tnode *tn; - __u32 objectId; - -- if(obj && yaffs_SkipVerification(obj->myDev)) -+ if (!obj) -+ return; -+ -+ if (yaffs_SkipVerification(obj->myDev)) - return; - - dev = obj->myDev; -@@ -662,17 +668,17 @@ static void yaffs_VerifyFile(yaffs_Objec - lastChunk = obj->variant.fileVariant.fileSize / dev->nDataBytesPerChunk + 1; - x = lastChunk >> YAFFS_TNODES_LEVEL0_BITS; - requiredTallness = 0; -- while (x> 0) { -+ while (x > 0) { - x >>= YAFFS_TNODES_INTERNAL_BITS; - requiredTallness++; - } - - actualTallness = obj->variant.fileVariant.topLevel; - -- if(requiredTallness > actualTallness ) -+ if (requiredTallness > actualTallness) - T(YAFFS_TRACE_VERIFY, - (TSTR("Obj %d had tnode tallness %d, needs to be %d"TENDSTR), -- obj->objectId,actualTallness, requiredTallness)); -+ obj->objectId, actualTallness, requiredTallness)); - - - /* Check that the chunks in the tnode tree are all correct. -@@ -680,39 +686,31 @@ static void yaffs_VerifyFile(yaffs_Objec - * checking the tags for every chunk match. - */ - -- if(yaffs_SkipNANDVerification(dev)) -+ if (yaffs_SkipNANDVerification(dev)) - return; - -- for(i = 1; i <= lastChunk; i++){ -- tn = yaffs_FindLevel0Tnode(dev, &obj->variant.fileVariant,i); -+ for (i = 1; i <= lastChunk; i++) { -+ tn = yaffs_FindLevel0Tnode(dev, &obj->variant.fileVariant, i); - - if (tn) { -- __u32 theChunk = yaffs_GetChunkGroupBase(dev,tn,i); -- if(theChunk > 0){ -+ __u32 theChunk = yaffs_GetChunkGroupBase(dev, tn, i); -+ if (theChunk > 0) { - /* T(~0,(TSTR("verifying (%d:%d) %d"TENDSTR),objectId,i,theChunk)); */ -- yaffs_ReadChunkWithTagsFromNAND(dev,theChunk,NULL, &tags); -- if(tags.objectId != objectId || tags.chunkId != i){ -- T(~0,(TSTR("Object %d chunkId %d NAND mismatch chunk %d tags (%d:%d)"TENDSTR), -+ yaffs_ReadChunkWithTagsFromNAND(dev, theChunk, NULL, &tags); -+ if (tags.objectId != objectId || tags.chunkId != i) { -+ T(~0, (TSTR("Object %d chunkId %d NAND mismatch chunk %d tags (%d:%d)"TENDSTR), - objectId, i, theChunk, - tags.objectId, tags.chunkId)); - } - } - } -- - } -- - } - --static void yaffs_VerifyDirectory(yaffs_Object *obj) --{ -- if(obj && yaffs_SkipVerification(obj->myDev)) -- return; -- --} - - static void yaffs_VerifyHardLink(yaffs_Object *obj) - { -- if(obj && yaffs_SkipVerification(obj->myDev)) -+ if (obj && yaffs_SkipVerification(obj->myDev)) - return; - - /* Verify sane equivalent object */ -@@ -720,7 +718,7 @@ static void yaffs_VerifyHardLink(yaffs_O - - static void yaffs_VerifySymlink(yaffs_Object *obj) - { -- if(obj && yaffs_SkipVerification(obj->myDev)) -+ if (obj && yaffs_SkipVerification(obj->myDev)) - return; - - /* Verify symlink string */ -@@ -728,7 +726,7 @@ static void yaffs_VerifySymlink(yaffs_Ob - - static void yaffs_VerifySpecial(yaffs_Object *obj) - { -- if(obj && yaffs_SkipVerification(obj->myDev)) -+ if (obj && yaffs_SkipVerification(obj->myDev)) - return; - } - -@@ -740,14 +738,19 @@ static void yaffs_VerifyObject(yaffs_Obj - __u32 chunkMax; - - __u32 chunkIdOk; -- __u32 chunkIsLive; -+ __u32 chunkInRange; -+ __u32 chunkShouldNotBeDeleted; -+ __u32 chunkValid; -+ -+ if (!obj) -+ return; - -- if(!obj) -+ if (obj->beingCreated) - return; - - dev = obj->myDev; - -- if(yaffs_SkipVerification(dev)) -+ if (yaffs_SkipVerification(dev)) - return; - - /* Check sane object header chunk */ -@@ -755,50 +758,54 @@ static void yaffs_VerifyObject(yaffs_Obj - chunkMin = dev->internalStartBlock * dev->nChunksPerBlock; - chunkMax = (dev->internalEndBlock+1) * dev->nChunksPerBlock - 1; - -- chunkIdOk = (obj->chunkId >= chunkMin && obj->chunkId <= chunkMax); -- chunkIsLive = chunkIdOk && -+ chunkInRange = (((unsigned)(obj->hdrChunk)) >= chunkMin && ((unsigned)(obj->hdrChunk)) <= chunkMax); -+ chunkIdOk = chunkInRange || obj->hdrChunk == 0; -+ chunkValid = chunkInRange && - yaffs_CheckChunkBit(dev, -- obj->chunkId / dev->nChunksPerBlock, -- obj->chunkId % dev->nChunksPerBlock); -- if(!obj->fake && -- (!chunkIdOk || !chunkIsLive)) { -- T(YAFFS_TRACE_VERIFY, -- (TSTR("Obj %d has chunkId %d %s %s"TENDSTR), -- obj->objectId,obj->chunkId, -- chunkIdOk ? "" : ",out of range", -- chunkIsLive || !chunkIdOk ? "" : ",marked as deleted")); -+ obj->hdrChunk / dev->nChunksPerBlock, -+ obj->hdrChunk % dev->nChunksPerBlock); -+ chunkShouldNotBeDeleted = chunkInRange && !chunkValid; -+ -+ if (!obj->fake && -+ (!chunkIdOk || chunkShouldNotBeDeleted)) { -+ T(YAFFS_TRACE_VERIFY, -+ (TSTR("Obj %d has chunkId %d %s %s"TENDSTR), -+ obj->objectId, obj->hdrChunk, -+ chunkIdOk ? "" : ",out of range", -+ chunkShouldNotBeDeleted ? ",marked as deleted" : "")); - } - -- if(chunkIdOk && chunkIsLive &&!yaffs_SkipNANDVerification(dev)) { -+ if (chunkValid && !yaffs_SkipNANDVerification(dev)) { - yaffs_ExtendedTags tags; - yaffs_ObjectHeader *oh; -- __u8 *buffer = yaffs_GetTempBuffer(dev,__LINE__); -+ __u8 *buffer = yaffs_GetTempBuffer(dev, __LINE__); - - oh = (yaffs_ObjectHeader *)buffer; - -- yaffs_ReadChunkWithTagsFromNAND(dev, obj->chunkId,buffer, &tags); -+ yaffs_ReadChunkWithTagsFromNAND(dev, obj->hdrChunk, buffer, -+ &tags); - -- yaffs_VerifyObjectHeader(obj,oh,&tags,1); -+ yaffs_VerifyObjectHeader(obj, oh, &tags, 1); - -- yaffs_ReleaseTempBuffer(dev,buffer,__LINE__); -+ yaffs_ReleaseTempBuffer(dev, buffer, __LINE__); - } - - /* Verify it has a parent */ -- if(obj && !obj->fake && -- (!obj->parent || obj->parent->myDev != dev)){ -- T(YAFFS_TRACE_VERIFY, -- (TSTR("Obj %d has parent pointer %p which does not look like an object"TENDSTR), -- obj->objectId,obj->parent)); -+ if (obj && !obj->fake && -+ (!obj->parent || obj->parent->myDev != dev)) { -+ T(YAFFS_TRACE_VERIFY, -+ (TSTR("Obj %d has parent pointer %p which does not look like an object"TENDSTR), -+ obj->objectId, obj->parent)); - } - - /* Verify parent is a directory */ -- if(obj->parent && obj->parent->variantType != YAFFS_OBJECT_TYPE_DIRECTORY){ -- T(YAFFS_TRACE_VERIFY, -- (TSTR("Obj %d's parent is not a directory (type %d)"TENDSTR), -- obj->objectId,obj->parent->variantType)); -+ if (obj->parent && obj->parent->variantType != YAFFS_OBJECT_TYPE_DIRECTORY) { -+ T(YAFFS_TRACE_VERIFY, -+ (TSTR("Obj %d's parent is not a directory (type %d)"TENDSTR), -+ obj->objectId, obj->parent->variantType)); - } - -- switch(obj->variantType){ -+ switch (obj->variantType) { - case YAFFS_OBJECT_TYPE_FILE: - yaffs_VerifyFile(obj); - break; -@@ -818,33 +825,30 @@ static void yaffs_VerifyObject(yaffs_Obj - default: - T(YAFFS_TRACE_VERIFY, - (TSTR("Obj %d has illegaltype %d"TENDSTR), -- obj->objectId,obj->variantType)); -+ obj->objectId, obj->variantType)); - break; - } -- -- - } - - static void yaffs_VerifyObjects(yaffs_Device *dev) - { - yaffs_Object *obj; - int i; -- struct list_head *lh; -+ struct ylist_head *lh; - -- if(yaffs_SkipVerification(dev)) -+ if (yaffs_SkipVerification(dev)) - return; - - /* Iterate through the objects in each hash entry */ - -- for(i = 0; i < YAFFS_NOBJECT_BUCKETS; i++){ -- list_for_each(lh, &dev->objectBucket[i].list) { -+ for (i = 0; i < YAFFS_NOBJECT_BUCKETS; i++) { -+ ylist_for_each(lh, &dev->objectBucket[i].list) { - if (lh) { -- obj = list_entry(lh, yaffs_Object, hashLink); -+ obj = ylist_entry(lh, yaffs_Object, hashLink); - yaffs_VerifyObject(obj); - } - } -- } -- -+ } - } - - -@@ -855,19 +859,20 @@ static void yaffs_VerifyObjects(yaffs_De - static Y_INLINE int yaffs_HashFunction(int n) - { - n = abs(n); -- return (n % YAFFS_NOBJECT_BUCKETS); -+ return n % YAFFS_NOBJECT_BUCKETS; - } - - /* -- * Access functions to useful fake objects -+ * Access functions to useful fake objects. -+ * Note that root might have a presence in NAND if permissions are set. - */ - --yaffs_Object *yaffs_Root(yaffs_Device * dev) -+yaffs_Object *yaffs_Root(yaffs_Device *dev) - { - return dev->rootDir; - } - --yaffs_Object *yaffs_LostNFound(yaffs_Device * dev) -+yaffs_Object *yaffs_LostNFound(yaffs_Device *dev) - { - return dev->lostNFoundDir; - } -@@ -877,7 +882,7 @@ yaffs_Object *yaffs_LostNFound(yaffs_Dev - * Erased NAND checking functions - */ - --int yaffs_CheckFF(__u8 * buffer, int nBytes) -+int yaffs_CheckFF(__u8 *buffer, int nBytes) - { - /* Horrible, slow implementation */ - while (nBytes--) { -@@ -889,9 +894,8 @@ int yaffs_CheckFF(__u8 * buffer, int nBy - } - - static int yaffs_CheckChunkErased(struct yaffs_DeviceStruct *dev, -- int chunkInNAND) -+ int chunkInNAND) - { -- - int retval = YAFFS_OK; - __u8 *data = yaffs_GetTempBuffer(dev, __LINE__); - yaffs_ExtendedTags tags; -@@ -899,10 +903,9 @@ static int yaffs_CheckChunkErased(struct - - result = yaffs_ReadChunkWithTagsFromNAND(dev, chunkInNAND, data, &tags); - -- if(tags.eccResult > YAFFS_ECC_RESULT_NO_ERROR) -+ if (tags.eccResult > YAFFS_ECC_RESULT_NO_ERROR) - retval = YAFFS_FAIL; - -- - if (!yaffs_CheckFF(data, dev->nDataBytesPerChunk) || tags.chunkUsed) { - T(YAFFS_TRACE_NANDACCESS, - (TSTR("Chunk %d not erased" TENDSTR), chunkInNAND)); -@@ -915,11 +918,10 @@ static int yaffs_CheckChunkErased(struct - - } - -- - static int yaffs_WriteNewChunkWithTagsToNAND(struct yaffs_DeviceStruct *dev, -- const __u8 * data, -- yaffs_ExtendedTags * tags, -- int useReserve) -+ const __u8 *data, -+ yaffs_ExtendedTags *tags, -+ int useReserve) - { - int attempts = 0; - int writeOk = 0; -@@ -972,7 +974,7 @@ static int yaffs_WriteNewChunkWithTagsTo - erasedOk = yaffs_CheckChunkErased(dev, chunk); - if (erasedOk != YAFFS_OK) { - T(YAFFS_TRACE_ERROR, -- (TSTR ("**>> yaffs chunk %d was not erased" -+ (TSTR("**>> yaffs chunk %d was not erased" - TENDSTR), chunk)); - - /* try another chunk */ -@@ -992,7 +994,11 @@ static int yaffs_WriteNewChunkWithTagsTo - /* Copy the data into the robustification buffer */ - yaffs_HandleWriteChunkOk(dev, chunk, data, tags); - -- } while (writeOk != YAFFS_OK && attempts < yaffs_wr_attempts); -+ } while (writeOk != YAFFS_OK && -+ (yaffs_wr_attempts <= 0 || attempts <= yaffs_wr_attempts)); -+ -+ if (!writeOk) -+ chunk = -1; - - if (attempts > 1) { - T(YAFFS_TRACE_ERROR, -@@ -1009,13 +1015,35 @@ static int yaffs_WriteNewChunkWithTagsTo - * Block retiring for handling a broken block. - */ - --static void yaffs_RetireBlock(yaffs_Device * dev, int blockInNAND) -+static void yaffs_RetireBlock(yaffs_Device *dev, int blockInNAND) - { - yaffs_BlockInfo *bi = yaffs_GetBlockInfo(dev, blockInNAND); - - yaffs_InvalidateCheckpoint(dev); - -- yaffs_MarkBlockBad(dev, blockInNAND); -+ if (yaffs_MarkBlockBad(dev, blockInNAND) != YAFFS_OK) { -+ if (yaffs_EraseBlockInNAND(dev, blockInNAND) != YAFFS_OK) { -+ T(YAFFS_TRACE_ALWAYS, (TSTR( -+ "yaffs: Failed to mark bad and erase block %d" -+ TENDSTR), blockInNAND)); -+ } else { -+ yaffs_ExtendedTags tags; -+ int chunkId = blockInNAND * dev->nChunksPerBlock; -+ -+ __u8 *buffer = yaffs_GetTempBuffer(dev, __LINE__); -+ -+ memset(buffer, 0xff, dev->nDataBytesPerChunk); -+ yaffs_InitialiseTags(&tags); -+ tags.sequenceNumber = YAFFS_SEQUENCE_BAD_BLOCK; -+ if (dev->writeChunkWithTagsToNAND(dev, chunkId - -+ dev->chunkOffset, buffer, &tags) != YAFFS_OK) -+ T(YAFFS_TRACE_ALWAYS, (TSTR("yaffs: Failed to " -+ TCONT("write bad block marker to block %d") -+ TENDSTR), blockInNAND)); -+ -+ yaffs_ReleaseTempBuffer(dev, buffer, __LINE__); -+ } -+ } - - bi->blockState = YAFFS_BLOCK_STATE_DEAD; - bi->gcPrioritise = 0; -@@ -1029,49 +1057,45 @@ static void yaffs_RetireBlock(yaffs_Devi - * - */ - --static void yaffs_HandleWriteChunkOk(yaffs_Device * dev, int chunkInNAND, -- const __u8 * data, -- const yaffs_ExtendedTags * tags) -+static void yaffs_HandleWriteChunkOk(yaffs_Device *dev, int chunkInNAND, -+ const __u8 *data, -+ const yaffs_ExtendedTags *tags) - { - } - --static void yaffs_HandleUpdateChunk(yaffs_Device * dev, int chunkInNAND, -- const yaffs_ExtendedTags * tags) -+static void yaffs_HandleUpdateChunk(yaffs_Device *dev, int chunkInNAND, -+ const yaffs_ExtendedTags *tags) - { - } - - void yaffs_HandleChunkError(yaffs_Device *dev, yaffs_BlockInfo *bi) - { -- if(!bi->gcPrioritise){ -+ if (!bi->gcPrioritise) { - bi->gcPrioritise = 1; - dev->hasPendingPrioritisedGCs = 1; -- bi->chunkErrorStrikes ++; -+ bi->chunkErrorStrikes++; - -- if(bi->chunkErrorStrikes > 3){ -+ if (bi->chunkErrorStrikes > 3) { - bi->needsRetiring = 1; /* Too many stikes, so retire this */ - T(YAFFS_TRACE_ALWAYS, (TSTR("yaffs: Block struck out" TENDSTR))); - - } -- - } - } - --static void yaffs_HandleWriteChunkError(yaffs_Device * dev, int chunkInNAND, int erasedOk) -+static void yaffs_HandleWriteChunkError(yaffs_Device *dev, int chunkInNAND, -+ int erasedOk) - { -- - int blockInNAND = chunkInNAND / dev->nChunksPerBlock; - yaffs_BlockInfo *bi = yaffs_GetBlockInfo(dev, blockInNAND); - -- yaffs_HandleChunkError(dev,bi); -+ yaffs_HandleChunkError(dev, bi); - -- -- if(erasedOk ) { -+ if (erasedOk) { - /* Was an actual write failure, so mark the block for retirement */ - bi->needsRetiring = 1; - T(YAFFS_TRACE_ERROR | YAFFS_TRACE_BAD_BLOCKS, - (TSTR("**>> Block %d needs retiring" TENDSTR), blockInNAND)); -- -- - } - - /* Delete the chunk */ -@@ -1081,12 +1105,12 @@ static void yaffs_HandleWriteChunkError( - - /*---------------- Name handling functions ------------*/ - --static __u16 yaffs_CalcNameSum(const YCHAR * name) -+static __u16 yaffs_CalcNameSum(const YCHAR *name) - { - __u16 sum = 0; - __u16 i = 1; - -- YUCHAR *bname = (YUCHAR *) name; -+ const YUCHAR *bname = (const YUCHAR *) name; - if (bname) { - while ((*bname) && (i < (YAFFS_MAX_NAME_LENGTH/2))) { - -@@ -1102,14 +1126,14 @@ static __u16 yaffs_CalcNameSum(const YCH - return sum; - } - --static void yaffs_SetObjectName(yaffs_Object * obj, const YCHAR * name) -+static void yaffs_SetObjectName(yaffs_Object *obj, const YCHAR *name) - { - #ifdef CONFIG_YAFFS_SHORT_NAMES_IN_RAM -- if (name && yaffs_strlen(name) <= YAFFS_SHORT_NAME_LENGTH) { -+ memset(obj->shortName, 0, sizeof(YCHAR) * (YAFFS_SHORT_NAME_LENGTH+1)); -+ if (name && yaffs_strlen(name) <= YAFFS_SHORT_NAME_LENGTH) - yaffs_strcpy(obj->shortName, name); -- } else { -+ else - obj->shortName[0] = _Y('\0'); -- } - #endif - obj->sum = yaffs_CalcNameSum(name); - } -@@ -1126,7 +1150,7 @@ static void yaffs_SetObjectName(yaffs_Ob - * Don't use this function directly - */ - --static int yaffs_CreateTnodes(yaffs_Device * dev, int nTnodes) -+static int yaffs_CreateTnodes(yaffs_Device *dev, int nTnodes) - { - int i; - int tnodeSize; -@@ -1143,6 +1167,9 @@ static int yaffs_CreateTnodes(yaffs_Devi - * Must be a multiple of 32-bits */ - tnodeSize = (dev->tnodeWidth * YAFFS_NTNODES_LEVEL0)/8; - -+ if (tnodeSize < sizeof(yaffs_Tnode)) -+ tnodeSize = sizeof(yaffs_Tnode); -+ - /* make these things */ - - newTnodes = YMALLOC(nTnodes * tnodeSize); -@@ -1150,7 +1177,7 @@ static int yaffs_CreateTnodes(yaffs_Devi - - if (!newTnodes) { - T(YAFFS_TRACE_ERROR, -- (TSTR("yaffs: Could not allocate Tnodes" TENDSTR))); -+ (TSTR("yaffs: Could not allocate Tnodes" TENDSTR))); - return YAFFS_FAIL; - } - -@@ -1170,7 +1197,7 @@ static int yaffs_CreateTnodes(yaffs_Devi - dev->freeTnodes = newTnodes; - #else - /* New hookup for wide tnodes */ -- for(i = 0; i < nTnodes -1; i++) { -+ for (i = 0; i < nTnodes - 1; i++) { - curr = (yaffs_Tnode *) &mem[i * tnodeSize]; - next = (yaffs_Tnode *) &mem[(i+1) * tnodeSize]; - curr->internal[0] = next; -@@ -1197,7 +1224,6 @@ static int yaffs_CreateTnodes(yaffs_Devi - (TSTR - ("yaffs: Could not add tnodes to management list" TENDSTR))); - return YAFFS_FAIL; -- - } else { - tnl->tnodes = newTnodes; - tnl->next = dev->allocatedTnodeList; -@@ -1211,14 +1237,13 @@ static int yaffs_CreateTnodes(yaffs_Devi - - /* GetTnode gets us a clean tnode. Tries to make allocate more if we run out */ - --static yaffs_Tnode *yaffs_GetTnodeRaw(yaffs_Device * dev) -+static yaffs_Tnode *yaffs_GetTnodeRaw(yaffs_Device *dev) - { - yaffs_Tnode *tn = NULL; - - /* If there are none left make more */ -- if (!dev->freeTnodes) { -+ if (!dev->freeTnodes) - yaffs_CreateTnodes(dev, YAFFS_ALLOCATION_NTNODES); -- } - - if (dev->freeTnodes) { - tn = dev->freeTnodes; -@@ -1233,21 +1258,27 @@ static yaffs_Tnode *yaffs_GetTnodeRaw(ya - dev->nFreeTnodes--; - } - -+ dev->nCheckpointBlocksRequired = 0; /* force recalculation*/ -+ - return tn; - } - --static yaffs_Tnode *yaffs_GetTnode(yaffs_Device * dev) -+static yaffs_Tnode *yaffs_GetTnode(yaffs_Device *dev) - { - yaffs_Tnode *tn = yaffs_GetTnodeRaw(dev); -+ int tnodeSize = (dev->tnodeWidth * YAFFS_NTNODES_LEVEL0)/8; - -- if(tn) -- memset(tn, 0, (dev->tnodeWidth * YAFFS_NTNODES_LEVEL0)/8); -+ if (tnodeSize < sizeof(yaffs_Tnode)) -+ tnodeSize = sizeof(yaffs_Tnode); -+ -+ if (tn) -+ memset(tn, 0, tnodeSize); - - return tn; - } - - /* FreeTnode frees up a tnode and puts it back on the free list */ --static void yaffs_FreeTnode(yaffs_Device * dev, yaffs_Tnode * tn) -+static void yaffs_FreeTnode(yaffs_Device *dev, yaffs_Tnode *tn) - { - if (tn) { - #ifdef CONFIG_YAFFS_TNODE_LIST_DEBUG -@@ -1262,9 +1293,10 @@ static void yaffs_FreeTnode(yaffs_Device - dev->freeTnodes = tn; - dev->nFreeTnodes++; - } -+ dev->nCheckpointBlocksRequired = 0; /* force recalculation*/ - } - --static void yaffs_DeinitialiseTnodes(yaffs_Device * dev) -+static void yaffs_DeinitialiseTnodes(yaffs_Device *dev) - { - /* Free the list of allocated tnodes */ - yaffs_TnodeList *tmp; -@@ -1282,71 +1314,72 @@ static void yaffs_DeinitialiseTnodes(yaf - dev->nFreeTnodes = 0; - } - --static void yaffs_InitialiseTnodes(yaffs_Device * dev) -+static void yaffs_InitialiseTnodes(yaffs_Device *dev) - { - dev->allocatedTnodeList = NULL; - dev->freeTnodes = NULL; - dev->nFreeTnodes = 0; - dev->nTnodesCreated = 0; -- - } - - --void yaffs_PutLevel0Tnode(yaffs_Device *dev, yaffs_Tnode *tn, unsigned pos, unsigned val) -+void yaffs_PutLevel0Tnode(yaffs_Device *dev, yaffs_Tnode *tn, unsigned pos, -+ unsigned val) - { -- __u32 *map = (__u32 *)tn; -- __u32 bitInMap; -- __u32 bitInWord; -- __u32 wordInMap; -- __u32 mask; -+ __u32 *map = (__u32 *)tn; -+ __u32 bitInMap; -+ __u32 bitInWord; -+ __u32 wordInMap; -+ __u32 mask; - -- pos &= YAFFS_TNODES_LEVEL0_MASK; -- val >>= dev->chunkGroupBits; -+ pos &= YAFFS_TNODES_LEVEL0_MASK; -+ val >>= dev->chunkGroupBits; - -- bitInMap = pos * dev->tnodeWidth; -- wordInMap = bitInMap /32; -- bitInWord = bitInMap & (32 -1); -+ bitInMap = pos * dev->tnodeWidth; -+ wordInMap = bitInMap / 32; -+ bitInWord = bitInMap & (32 - 1); - -- mask = dev->tnodeMask << bitInWord; -+ mask = dev->tnodeMask << bitInWord; - -- map[wordInMap] &= ~mask; -- map[wordInMap] |= (mask & (val << bitInWord)); -+ map[wordInMap] &= ~mask; -+ map[wordInMap] |= (mask & (val << bitInWord)); - -- if(dev->tnodeWidth > (32-bitInWord)) { -- bitInWord = (32 - bitInWord); -- wordInMap++;; -- mask = dev->tnodeMask >> (/*dev->tnodeWidth -*/ bitInWord); -- map[wordInMap] &= ~mask; -- map[wordInMap] |= (mask & (val >> bitInWord)); -- } -+ if (dev->tnodeWidth > (32 - bitInWord)) { -+ bitInWord = (32 - bitInWord); -+ wordInMap++;; -+ mask = dev->tnodeMask >> (/*dev->tnodeWidth -*/ bitInWord); -+ map[wordInMap] &= ~mask; -+ map[wordInMap] |= (mask & (val >> bitInWord)); -+ } - } - --static __u32 yaffs_GetChunkGroupBase(yaffs_Device *dev, yaffs_Tnode *tn, unsigned pos) -+static __u32 yaffs_GetChunkGroupBase(yaffs_Device *dev, yaffs_Tnode *tn, -+ unsigned pos) - { -- __u32 *map = (__u32 *)tn; -- __u32 bitInMap; -- __u32 bitInWord; -- __u32 wordInMap; -- __u32 val; -+ __u32 *map = (__u32 *)tn; -+ __u32 bitInMap; -+ __u32 bitInWord; -+ __u32 wordInMap; -+ __u32 val; - -- pos &= YAFFS_TNODES_LEVEL0_MASK; -+ pos &= YAFFS_TNODES_LEVEL0_MASK; - -- bitInMap = pos * dev->tnodeWidth; -- wordInMap = bitInMap /32; -- bitInWord = bitInMap & (32 -1); -+ bitInMap = pos * dev->tnodeWidth; -+ wordInMap = bitInMap / 32; -+ bitInWord = bitInMap & (32 - 1); - -- val = map[wordInMap] >> bitInWord; -+ val = map[wordInMap] >> bitInWord; - -- if(dev->tnodeWidth > (32-bitInWord)) { -- bitInWord = (32 - bitInWord); -- wordInMap++;; -- val |= (map[wordInMap] << bitInWord); -- } -+ if (dev->tnodeWidth > (32 - bitInWord)) { -+ bitInWord = (32 - bitInWord); -+ wordInMap++;; -+ val |= (map[wordInMap] << bitInWord); -+ } - -- val &= dev->tnodeMask; -- val <<= dev->chunkGroupBits; -+ val &= dev->tnodeMask; -+ val <<= dev->chunkGroupBits; - -- return val; -+ return val; - } - - /* ------------------- End of individual tnode manipulation -----------------*/ -@@ -1357,24 +1390,21 @@ static __u32 yaffs_GetChunkGroupBase(yaf - */ - - /* FindLevel0Tnode finds the level 0 tnode, if one exists. */ --static yaffs_Tnode *yaffs_FindLevel0Tnode(yaffs_Device * dev, -- yaffs_FileStructure * fStruct, -- __u32 chunkId) -+static yaffs_Tnode *yaffs_FindLevel0Tnode(yaffs_Device *dev, -+ yaffs_FileStructure *fStruct, -+ __u32 chunkId) - { -- - yaffs_Tnode *tn = fStruct->top; - __u32 i; - int requiredTallness; - int level = fStruct->topLevel; - - /* Check sane level and chunk Id */ -- if (level < 0 || level > YAFFS_TNODES_MAX_LEVEL) { -+ if (level < 0 || level > YAFFS_TNODES_MAX_LEVEL) - return NULL; -- } - -- if (chunkId > YAFFS_MAX_CHUNK_ID) { -+ if (chunkId > YAFFS_MAX_CHUNK_ID) - return NULL; -- } - - /* First check we're tall enough (ie enough topLevel) */ - -@@ -1385,22 +1415,17 @@ static yaffs_Tnode *yaffs_FindLevel0Tnod - requiredTallness++; - } - -- if (requiredTallness > fStruct->topLevel) { -- /* Not tall enough, so we can't find it, return NULL. */ -- return NULL; -- } -+ if (requiredTallness > fStruct->topLevel) -+ return NULL; /* Not tall enough, so we can't find it */ - - /* Traverse down to level 0 */ - while (level > 0 && tn) { -- tn = tn-> -- internal[(chunkId >> -- ( YAFFS_TNODES_LEVEL0_BITS + -- (level - 1) * -- YAFFS_TNODES_INTERNAL_BITS) -- ) & -- YAFFS_TNODES_INTERNAL_MASK]; -+ tn = tn->internal[(chunkId >> -+ (YAFFS_TNODES_LEVEL0_BITS + -+ (level - 1) * -+ YAFFS_TNODES_INTERNAL_BITS)) & -+ YAFFS_TNODES_INTERNAL_MASK]; - level--; -- - } - - return tn; -@@ -1417,12 +1442,11 @@ static yaffs_Tnode *yaffs_FindLevel0Tnod - * be plugged into the ttree. - */ - --static yaffs_Tnode *yaffs_AddOrFindLevel0Tnode(yaffs_Device * dev, -- yaffs_FileStructure * fStruct, -- __u32 chunkId, -- yaffs_Tnode *passedTn) -+static yaffs_Tnode *yaffs_AddOrFindLevel0Tnode(yaffs_Device *dev, -+ yaffs_FileStructure *fStruct, -+ __u32 chunkId, -+ yaffs_Tnode *passedTn) - { -- - int requiredTallness; - int i; - int l; -@@ -1432,13 +1456,11 @@ static yaffs_Tnode *yaffs_AddOrFindLevel - - - /* Check sane level and page Id */ -- if (fStruct->topLevel < 0 || fStruct->topLevel > YAFFS_TNODES_MAX_LEVEL) { -+ if (fStruct->topLevel < 0 || fStruct->topLevel > YAFFS_TNODES_MAX_LEVEL) - return NULL; -- } - -- if (chunkId > YAFFS_MAX_CHUNK_ID) { -+ if (chunkId > YAFFS_MAX_CHUNK_ID) - return NULL; -- } - - /* First check we're tall enough (ie enough topLevel) */ - -@@ -1451,7 +1473,7 @@ static yaffs_Tnode *yaffs_AddOrFindLevel - - - if (requiredTallness > fStruct->topLevel) { -- /* Not tall enough,gotta make the tree taller */ -+ /* Not tall enough, gotta make the tree taller */ - for (i = fStruct->topLevel; i < requiredTallness; i++) { - - tn = yaffs_GetTnode(dev); -@@ -1473,27 +1495,27 @@ static yaffs_Tnode *yaffs_AddOrFindLevel - l = fStruct->topLevel; - tn = fStruct->top; - -- if(l > 0) { -+ if (l > 0) { - while (l > 0 && tn) { - x = (chunkId >> -- ( YAFFS_TNODES_LEVEL0_BITS + -+ (YAFFS_TNODES_LEVEL0_BITS + - (l - 1) * YAFFS_TNODES_INTERNAL_BITS)) & - YAFFS_TNODES_INTERNAL_MASK; - - -- if((l>1) && !tn->internal[x]){ -+ if ((l > 1) && !tn->internal[x]) { - /* Add missing non-level-zero tnode */ - tn->internal[x] = yaffs_GetTnode(dev); - -- } else if(l == 1) { -+ } else if (l == 1) { - /* Looking from level 1 at level 0 */ -- if (passedTn) { -+ if (passedTn) { - /* If we already have one, then release it.*/ -- if(tn->internal[x]) -- yaffs_FreeTnode(dev,tn->internal[x]); -+ if (tn->internal[x]) -+ yaffs_FreeTnode(dev, tn->internal[x]); - tn->internal[x] = passedTn; - -- } else if(!tn->internal[x]) { -+ } else if (!tn->internal[x]) { - /* Don't have one, none passed in */ - tn->internal[x] = yaffs_GetTnode(dev); - } -@@ -1504,31 +1526,29 @@ static yaffs_Tnode *yaffs_AddOrFindLevel - } - } else { - /* top is level 0 */ -- if(passedTn) { -- memcpy(tn,passedTn,(dev->tnodeWidth * YAFFS_NTNODES_LEVEL0)/8); -- yaffs_FreeTnode(dev,passedTn); -+ if (passedTn) { -+ memcpy(tn, passedTn, (dev->tnodeWidth * YAFFS_NTNODES_LEVEL0)/8); -+ yaffs_FreeTnode(dev, passedTn); - } - } - - return tn; - } - --static int yaffs_FindChunkInGroup(yaffs_Device * dev, int theChunk, -- yaffs_ExtendedTags * tags, int objectId, -- int chunkInInode) -+static int yaffs_FindChunkInGroup(yaffs_Device *dev, int theChunk, -+ yaffs_ExtendedTags *tags, int objectId, -+ int chunkInInode) - { - int j; - - for (j = 0; theChunk && j < dev->chunkGroupSize; j++) { -- if (yaffs_CheckChunkBit -- (dev, theChunk / dev->nChunksPerBlock, -- theChunk % dev->nChunksPerBlock)) { -+ if (yaffs_CheckChunkBit(dev, theChunk / dev->nChunksPerBlock, -+ theChunk % dev->nChunksPerBlock)) { - yaffs_ReadChunkWithTagsFromNAND(dev, theChunk, NULL, - tags); - if (yaffs_TagsMatch(tags, objectId, chunkInInode)) { - /* found it; */ - return theChunk; -- - } - } - theChunk++; -@@ -1543,7 +1563,7 @@ static int yaffs_FindChunkInGroup(yaffs_ - * Returns 0 if it stopped early due to hitting the limit and the delete is incomplete. - */ - --static int yaffs_DeleteWorker(yaffs_Object * in, yaffs_Tnode * tn, __u32 level, -+static int yaffs_DeleteWorker(yaffs_Object *in, yaffs_Tnode *tn, __u32 level, - int chunkOffset, int *limit) - { - int i; -@@ -1557,7 +1577,6 @@ static int yaffs_DeleteWorker(yaffs_Obje - - if (tn) { - if (level > 0) { -- - for (i = YAFFS_NTNODES_INTERNAL - 1; allDone && i >= 0; - i--) { - if (tn->internal[i]) { -@@ -1565,17 +1584,17 @@ static int yaffs_DeleteWorker(yaffs_Obje - allDone = 0; - } else { - allDone = -- yaffs_DeleteWorker(in, -- tn-> -- internal -- [i], -- level - -- 1, -- (chunkOffset -+ yaffs_DeleteWorker(in, -+ tn-> -+ internal -+ [i], -+ level - -+ 1, -+ (chunkOffset - << - YAFFS_TNODES_INTERNAL_BITS) -- + i, -- limit); -+ + i, -+ limit); - } - if (allDone) { - yaffs_FreeTnode(dev, -@@ -1584,27 +1603,25 @@ static int yaffs_DeleteWorker(yaffs_Obje - tn->internal[i] = NULL; - } - } -- - } - return (allDone) ? 1 : 0; - } else if (level == 0) { - int hitLimit = 0; - - for (i = YAFFS_NTNODES_LEVEL0 - 1; i >= 0 && !hitLimit; -- i--) { -- theChunk = yaffs_GetChunkGroupBase(dev,tn,i); -+ i--) { -+ theChunk = yaffs_GetChunkGroupBase(dev, tn, i); - if (theChunk) { - -- chunkInInode = -- (chunkOffset << -- YAFFS_TNODES_LEVEL0_BITS) + i; -+ chunkInInode = (chunkOffset << -+ YAFFS_TNODES_LEVEL0_BITS) + i; - - foundChunk = -- yaffs_FindChunkInGroup(dev, -- theChunk, -- &tags, -- in->objectId, -- chunkInInode); -+ yaffs_FindChunkInGroup(dev, -+ theChunk, -+ &tags, -+ in->objectId, -+ chunkInInode); - - if (foundChunk > 0) { - yaffs_DeleteChunk(dev, -@@ -1613,14 +1630,13 @@ static int yaffs_DeleteWorker(yaffs_Obje - in->nDataChunks--; - if (limit) { - *limit = *limit - 1; -- if (*limit <= 0) { -+ if (*limit <= 0) - hitLimit = 1; -- } - } - - } - -- yaffs_PutLevel0Tnode(dev,tn,i,0); -+ yaffs_PutLevel0Tnode(dev, tn, i, 0); - } - - } -@@ -1634,9 +1650,8 @@ static int yaffs_DeleteWorker(yaffs_Obje - - } - --static void yaffs_SoftDeleteChunk(yaffs_Device * dev, int chunk) -+static void yaffs_SoftDeleteChunk(yaffs_Device *dev, int chunk) - { -- - yaffs_BlockInfo *theBlock; - - T(YAFFS_TRACE_DELETION, (TSTR("soft delete chunk %d" TENDSTR), chunk)); -@@ -1654,7 +1669,7 @@ static void yaffs_SoftDeleteChunk(yaffs_ - * Thus, essentially this is the same as DeleteWorker except that the chunks are soft deleted. - */ - --static int yaffs_SoftDeleteWorker(yaffs_Object * in, yaffs_Tnode * tn, -+static int yaffs_SoftDeleteWorker(yaffs_Object *in, yaffs_Tnode *tn, - __u32 level, int chunkOffset) - { - int i; -@@ -1691,14 +1706,14 @@ static int yaffs_SoftDeleteWorker(yaffs_ - } else if (level == 0) { - - for (i = YAFFS_NTNODES_LEVEL0 - 1; i >= 0; i--) { -- theChunk = yaffs_GetChunkGroupBase(dev,tn,i); -+ theChunk = yaffs_GetChunkGroupBase(dev, tn, i); - if (theChunk) { - /* Note this does not find the real chunk, only the chunk group. - * We make an assumption that a chunk group is not larger than - * a block. - */ - yaffs_SoftDeleteChunk(dev, theChunk); -- yaffs_PutLevel0Tnode(dev,tn,i,0); -+ yaffs_PutLevel0Tnode(dev, tn, i, 0); - } - - } -@@ -1712,7 +1727,7 @@ static int yaffs_SoftDeleteWorker(yaffs_ - - } - --static void yaffs_SoftDeleteFile(yaffs_Object * obj) -+static void yaffs_SoftDeleteFile(yaffs_Object *obj) - { - if (obj->deleted && - obj->variantType == YAFFS_OBJECT_TYPE_FILE && !obj->softDeleted) { -@@ -1746,8 +1761,8 @@ static void yaffs_SoftDeleteFile(yaffs_O - * by a special case. - */ - --static yaffs_Tnode *yaffs_PruneWorker(yaffs_Device * dev, yaffs_Tnode * tn, -- __u32 level, int del0) -+static yaffs_Tnode *yaffs_PruneWorker(yaffs_Device *dev, yaffs_Tnode *tn, -+ __u32 level, int del0) - { - int i; - int hasData; -@@ -1763,9 +1778,8 @@ static yaffs_Tnode *yaffs_PruneWorker(ya - (i == 0) ? del0 : 1); - } - -- if (tn->internal[i]) { -+ if (tn->internal[i]) - hasData++; -- } - } - - if (hasData == 0 && del0) { -@@ -1781,8 +1795,8 @@ static yaffs_Tnode *yaffs_PruneWorker(ya - - } - --static int yaffs_PruneFileStructure(yaffs_Device * dev, -- yaffs_FileStructure * fStruct) -+static int yaffs_PruneFileStructure(yaffs_Device *dev, -+ yaffs_FileStructure *fStruct) - { - int i; - int hasData; -@@ -1805,9 +1819,8 @@ static int yaffs_PruneFileStructure(yaff - - hasData = 0; - for (i = 1; i < YAFFS_NTNODES_INTERNAL; i++) { -- if (tn->internal[i]) { -+ if (tn->internal[i]) - hasData++; -- } - } - - if (!hasData) { -@@ -1828,7 +1841,7 @@ static int yaffs_PruneFileStructure(yaff - /* yaffs_CreateFreeObjects creates a bunch more objects and - * adds them to the object free list. - */ --static int yaffs_CreateFreeObjects(yaffs_Device * dev, int nObjects) -+static int yaffs_CreateFreeObjects(yaffs_Device *dev, int nObjects) - { - int i; - yaffs_Object *newObjects; -@@ -1842,9 +1855,9 @@ static int yaffs_CreateFreeObjects(yaffs - list = YMALLOC(sizeof(yaffs_ObjectList)); - - if (!newObjects || !list) { -- if(newObjects) -+ if (newObjects) - YFREE(newObjects); -- if(list) -+ if (list) - YFREE(list); - T(YAFFS_TRACE_ALLOCATE, - (TSTR("yaffs: Could not allocate more objects" TENDSTR))); -@@ -1854,7 +1867,7 @@ static int yaffs_CreateFreeObjects(yaffs - /* Hook them into the free list */ - for (i = 0; i < nObjects - 1; i++) { - newObjects[i].siblings.next = -- (struct list_head *)(&newObjects[i + 1]); -+ (struct ylist_head *)(&newObjects[i + 1]); - } - - newObjects[nObjects - 1].siblings.next = (void *)dev->freeObjects; -@@ -1873,85 +1886,109 @@ static int yaffs_CreateFreeObjects(yaffs - - - /* AllocateEmptyObject gets us a clean Object. Tries to make allocate more if we run out */ --static yaffs_Object *yaffs_AllocateEmptyObject(yaffs_Device * dev) -+static yaffs_Object *yaffs_AllocateEmptyObject(yaffs_Device *dev) - { - yaffs_Object *tn = NULL; - -+#ifdef VALGRIND_TEST -+ tn = YMALLOC(sizeof(yaffs_Object)); -+#else - /* If there are none left make more */ -- if (!dev->freeObjects) { -+ if (!dev->freeObjects) - yaffs_CreateFreeObjects(dev, YAFFS_ALLOCATION_NOBJECTS); -- } - - if (dev->freeObjects) { - tn = dev->freeObjects; - dev->freeObjects = -- (yaffs_Object *) (dev->freeObjects->siblings.next); -+ (yaffs_Object *) (dev->freeObjects->siblings.next); - dev->nFreeObjects--; -- -+ } -+#endif -+ if (tn) { - /* Now sweeten it up... */ - - memset(tn, 0, sizeof(yaffs_Object)); -+ tn->beingCreated = 1; -+ - tn->myDev = dev; -- tn->chunkId = -1; -+ tn->hdrChunk = 0; - tn->variantType = YAFFS_OBJECT_TYPE_UNKNOWN; -- INIT_LIST_HEAD(&(tn->hardLinks)); -- INIT_LIST_HEAD(&(tn->hashLink)); -- INIT_LIST_HEAD(&tn->siblings); -+ YINIT_LIST_HEAD(&(tn->hardLinks)); -+ YINIT_LIST_HEAD(&(tn->hashLink)); -+ YINIT_LIST_HEAD(&tn->siblings); -+ -+ -+ /* Now make the directory sane */ -+ if (dev->rootDir) { -+ tn->parent = dev->rootDir; -+ ylist_add(&(tn->siblings), &dev->rootDir->variant.directoryVariant.children); -+ } - - /* Add it to the lost and found directory. - * NB Can't put root or lostNFound in lostNFound so - * check if lostNFound exists first - */ -- if (dev->lostNFoundDir) { -+ if (dev->lostNFoundDir) - yaffs_AddObjectToDirectory(dev->lostNFoundDir, tn); -- } -+ -+ tn->beingCreated = 0; - } - -+ dev->nCheckpointBlocksRequired = 0; /* force recalculation*/ -+ - return tn; - } - --static yaffs_Object *yaffs_CreateFakeDirectory(yaffs_Device * dev, int number, -+static yaffs_Object *yaffs_CreateFakeDirectory(yaffs_Device *dev, int number, - __u32 mode) - { - - yaffs_Object *obj = - yaffs_CreateNewObject(dev, number, YAFFS_OBJECT_TYPE_DIRECTORY); - if (obj) { -- obj->fake = 1; /* it is fake so it has no NAND presence... */ -+ obj->fake = 1; /* it is fake so it might have no NAND presence... */ - obj->renameAllowed = 0; /* ... and we're not allowed to rename it... */ - obj->unlinkAllowed = 0; /* ... or unlink it */ - obj->deleted = 0; - obj->unlinked = 0; - obj->yst_mode = mode; - obj->myDev = dev; -- obj->chunkId = 0; /* Not a valid chunk. */ -+ obj->hdrChunk = 0; /* Not a valid chunk. */ - } - - return obj; - - } - --static void yaffs_UnhashObject(yaffs_Object * tn) -+static void yaffs_UnhashObject(yaffs_Object *tn) - { - int bucket; - yaffs_Device *dev = tn->myDev; - - /* If it is still linked into the bucket list, free from the list */ -- if (!list_empty(&tn->hashLink)) { -- list_del_init(&tn->hashLink); -+ if (!ylist_empty(&tn->hashLink)) { -+ ylist_del_init(&tn->hashLink); - bucket = yaffs_HashFunction(tn->objectId); - dev->objectBucket[bucket].count--; - } -- - } - - /* FreeObject frees up a Object and puts it back on the free list */ --static void yaffs_FreeObject(yaffs_Object * tn) -+static void yaffs_FreeObject(yaffs_Object *tn) - { -- - yaffs_Device *dev = tn->myDev; - --#ifdef __KERNEL__ -+#ifdef __KERNEL__ -+ T(YAFFS_TRACE_OS, (TSTR("FreeObject %p inode %p"TENDSTR), tn, tn->myInode)); -+#endif -+ -+ if (tn->parent) -+ YBUG(); -+ if (!ylist_empty(&tn->siblings)) -+ YBUG(); -+ -+ -+#ifdef __KERNEL__ - if (tn->myInode) { - /* We're still hooked up to a cached inode. - * Don't delete now, but mark for later deletion -@@ -1963,24 +2000,28 @@ static void yaffs_FreeObject(yaffs_Objec - - yaffs_UnhashObject(tn); - -+#ifdef VALGRIND_TEST -+ YFREE(tn); -+#else - /* Link into the free list. */ -- tn->siblings.next = (struct list_head *)(dev->freeObjects); -+ tn->siblings.next = (struct ylist_head *)(dev->freeObjects); - dev->freeObjects = tn; - dev->nFreeObjects++; -+#endif -+ dev->nCheckpointBlocksRequired = 0; /* force recalculation*/ - } - - #ifdef __KERNEL__ - --void yaffs_HandleDeferedFree(yaffs_Object * obj) -+void yaffs_HandleDeferedFree(yaffs_Object *obj) - { -- if (obj->deferedFree) { -+ if (obj->deferedFree) - yaffs_FreeObject(obj); -- } - } - - #endif - --static void yaffs_DeinitialiseObjects(yaffs_Device * dev) -+static void yaffs_DeinitialiseObjects(yaffs_Device *dev) - { - /* Free the list of allocated Objects */ - -@@ -1998,7 +2039,7 @@ static void yaffs_DeinitialiseObjects(ya - dev->nFreeObjects = 0; - } - --static void yaffs_InitialiseObjects(yaffs_Device * dev) -+static void yaffs_InitialiseObjects(yaffs_Device *dev) - { - int i; - -@@ -2007,15 +2048,14 @@ static void yaffs_InitialiseObjects(yaff - dev->nFreeObjects = 0; - - for (i = 0; i < YAFFS_NOBJECT_BUCKETS; i++) { -- INIT_LIST_HEAD(&dev->objectBucket[i].list); -+ YINIT_LIST_HEAD(&dev->objectBucket[i].list); - dev->objectBucket[i].count = 0; - } -- - } - --static int yaffs_FindNiceObjectBucket(yaffs_Device * dev) -+static int yaffs_FindNiceObjectBucket(yaffs_Device *dev) - { -- static int x = 0; -+ static int x; - int i; - int l = 999; - int lowest = 999999; -@@ -2049,7 +2089,7 @@ static int yaffs_FindNiceObjectBucket(ya - return l; - } - --static int yaffs_CreateNewObjectNumber(yaffs_Device * dev) -+static int yaffs_CreateNewObjectNumber(yaffs_Device *dev) - { - int bucket = yaffs_FindNiceObjectBucket(dev); - -@@ -2058,7 +2098,7 @@ static int yaffs_CreateNewObjectNumber(y - */ - - int found = 0; -- struct list_head *i; -+ struct ylist_head *i; - - __u32 n = (__u32) bucket; - -@@ -2068,41 +2108,38 @@ static int yaffs_CreateNewObjectNumber(y - found = 1; - n += YAFFS_NOBJECT_BUCKETS; - if (1 || dev->objectBucket[bucket].count > 0) { -- list_for_each(i, &dev->objectBucket[bucket].list) { -+ ylist_for_each(i, &dev->objectBucket[bucket].list) { - /* If there is already one in the list */ -- if (i -- && list_entry(i, yaffs_Object, -- hashLink)->objectId == n) { -+ if (i && ylist_entry(i, yaffs_Object, -+ hashLink)->objectId == n) { - found = 0; - } - } - } - } - -- - return n; - } - --static void yaffs_HashObject(yaffs_Object * in) -+static void yaffs_HashObject(yaffs_Object *in) - { - int bucket = yaffs_HashFunction(in->objectId); - yaffs_Device *dev = in->myDev; - -- list_add(&in->hashLink, &dev->objectBucket[bucket].list); -+ ylist_add(&in->hashLink, &dev->objectBucket[bucket].list); - dev->objectBucket[bucket].count++; -- - } - --yaffs_Object *yaffs_FindObjectByNumber(yaffs_Device * dev, __u32 number) -+yaffs_Object *yaffs_FindObjectByNumber(yaffs_Device *dev, __u32 number) - { - int bucket = yaffs_HashFunction(number); -- struct list_head *i; -+ struct ylist_head *i; - yaffs_Object *in; - -- list_for_each(i, &dev->objectBucket[bucket].list) { -+ ylist_for_each(i, &dev->objectBucket[bucket].list) { - /* Look if it is in the list */ - if (i) { -- in = list_entry(i, yaffs_Object, hashLink); -+ in = ylist_entry(i, yaffs_Object, hashLink); - if (in->objectId == number) { - #ifdef __KERNEL__ - /* Don't tell the VFS about this one if it is defered free */ -@@ -2118,31 +2155,27 @@ yaffs_Object *yaffs_FindObjectByNumber(y - return NULL; - } - --yaffs_Object *yaffs_CreateNewObject(yaffs_Device * dev, int number, -+yaffs_Object *yaffs_CreateNewObject(yaffs_Device *dev, int number, - yaffs_ObjectType type) - { -- - yaffs_Object *theObject; -- yaffs_Tnode *tn; -+ yaffs_Tnode *tn = NULL; - -- if (number < 0) { -+ if (number < 0) - number = yaffs_CreateNewObjectNumber(dev); -- } - - theObject = yaffs_AllocateEmptyObject(dev); -- if(!theObject) -+ if (!theObject) - return NULL; - -- if(type == YAFFS_OBJECT_TYPE_FILE){ -+ if (type == YAFFS_OBJECT_TYPE_FILE) { - tn = yaffs_GetTnode(dev); -- if(!tn){ -+ if (!tn) { - yaffs_FreeObject(theObject); - return NULL; - } - } - -- -- - if (theObject) { - theObject->fake = 0; - theObject->renameAllowed = 1; -@@ -2171,8 +2204,8 @@ yaffs_Object *yaffs_CreateNewObject(yaff - theObject->variant.fileVariant.top = tn; - break; - case YAFFS_OBJECT_TYPE_DIRECTORY: -- INIT_LIST_HEAD(&theObject->variant.directoryVariant. -- children); -+ YINIT_LIST_HEAD(&theObject->variant.directoryVariant. -+ children); - break; - case YAFFS_OBJECT_TYPE_SYMLINK: - case YAFFS_OBJECT_TYPE_HARDLINK: -@@ -2188,32 +2221,30 @@ yaffs_Object *yaffs_CreateNewObject(yaff - return theObject; - } - --static yaffs_Object *yaffs_FindOrCreateObjectByNumber(yaffs_Device * dev, -+static yaffs_Object *yaffs_FindOrCreateObjectByNumber(yaffs_Device *dev, - int number, - yaffs_ObjectType type) - { - yaffs_Object *theObject = NULL; - -- if (number > 0) { -+ if (number > 0) - theObject = yaffs_FindObjectByNumber(dev, number); -- } - -- if (!theObject) { -+ if (!theObject) - theObject = yaffs_CreateNewObject(dev, number, type); -- } - - return theObject; - - } - - --static YCHAR *yaffs_CloneString(const YCHAR * str) -+static YCHAR *yaffs_CloneString(const YCHAR *str) - { - YCHAR *newStr = NULL; - - if (str && *str) { - newStr = YMALLOC((yaffs_strlen(str) + 1) * sizeof(YCHAR)); -- if(newStr) -+ if (newStr) - yaffs_strcpy(newStr, str); - } - -@@ -2229,29 +2260,31 @@ static YCHAR *yaffs_CloneString(const YC - */ - - static yaffs_Object *yaffs_MknodObject(yaffs_ObjectType type, -- yaffs_Object * parent, -- const YCHAR * name, -+ yaffs_Object *parent, -+ const YCHAR *name, - __u32 mode, - __u32 uid, - __u32 gid, -- yaffs_Object * equivalentObject, -- const YCHAR * aliasString, __u32 rdev) -+ yaffs_Object *equivalentObject, -+ const YCHAR *aliasString, __u32 rdev) - { - yaffs_Object *in; -- YCHAR *str; -+ YCHAR *str = NULL; - - yaffs_Device *dev = parent->myDev; - - /* Check if the entry exists. If it does then fail the call since we don't want a dup.*/ -- if (yaffs_FindObjectByName(parent, name)) { -+ if (yaffs_FindObjectByName(parent, name)) - return NULL; -- } - - in = yaffs_CreateNewObject(dev, -1, type); - -- if(type == YAFFS_OBJECT_TYPE_SYMLINK){ -+ if (!in) -+ return YAFFS_FAIL; -+ -+ if (type == YAFFS_OBJECT_TYPE_SYMLINK) { - str = yaffs_CloneString(aliasString); -- if(!str){ -+ if (!str) { - yaffs_FreeObject(in); - return NULL; - } -@@ -2260,7 +2293,7 @@ static yaffs_Object *yaffs_MknodObject(y - - - if (in) { -- in->chunkId = -1; -+ in->hdrChunk = 0; - in->valid = 1; - in->variantType = type; - -@@ -2293,10 +2326,10 @@ static yaffs_Object *yaffs_MknodObject(y - break; - case YAFFS_OBJECT_TYPE_HARDLINK: - in->variant.hardLinkVariant.equivalentObject = -- equivalentObject; -+ equivalentObject; - in->variant.hardLinkVariant.equivalentObjectId = -- equivalentObject->objectId; -- list_add(&in->hardLinks, &equivalentObject->hardLinks); -+ equivalentObject->objectId; -+ ylist_add(&in->hardLinks, &equivalentObject->hardLinks); - break; - case YAFFS_OBJECT_TYPE_FILE: - case YAFFS_OBJECT_TYPE_DIRECTORY: -@@ -2308,7 +2341,7 @@ static yaffs_Object *yaffs_MknodObject(y - - if (yaffs_UpdateObjectHeader(in, name, 0, 0, 0) < 0) { - /* Could not create the object header, fail the creation */ -- yaffs_DestroyObject(in); -+ yaffs_DeleteObject(in); - in = NULL; - } - -@@ -2317,38 +2350,38 @@ static yaffs_Object *yaffs_MknodObject(y - return in; - } - --yaffs_Object *yaffs_MknodFile(yaffs_Object * parent, const YCHAR * name, -- __u32 mode, __u32 uid, __u32 gid) -+yaffs_Object *yaffs_MknodFile(yaffs_Object *parent, const YCHAR *name, -+ __u32 mode, __u32 uid, __u32 gid) - { - return yaffs_MknodObject(YAFFS_OBJECT_TYPE_FILE, parent, name, mode, -- uid, gid, NULL, NULL, 0); -+ uid, gid, NULL, NULL, 0); - } - --yaffs_Object *yaffs_MknodDirectory(yaffs_Object * parent, const YCHAR * name, -- __u32 mode, __u32 uid, __u32 gid) -+yaffs_Object *yaffs_MknodDirectory(yaffs_Object *parent, const YCHAR *name, -+ __u32 mode, __u32 uid, __u32 gid) - { - return yaffs_MknodObject(YAFFS_OBJECT_TYPE_DIRECTORY, parent, name, - mode, uid, gid, NULL, NULL, 0); - } - --yaffs_Object *yaffs_MknodSpecial(yaffs_Object * parent, const YCHAR * name, -- __u32 mode, __u32 uid, __u32 gid, __u32 rdev) -+yaffs_Object *yaffs_MknodSpecial(yaffs_Object *parent, const YCHAR *name, -+ __u32 mode, __u32 uid, __u32 gid, __u32 rdev) - { - return yaffs_MknodObject(YAFFS_OBJECT_TYPE_SPECIAL, parent, name, mode, - uid, gid, NULL, NULL, rdev); - } - --yaffs_Object *yaffs_MknodSymLink(yaffs_Object * parent, const YCHAR * name, -- __u32 mode, __u32 uid, __u32 gid, -- const YCHAR * alias) -+yaffs_Object *yaffs_MknodSymLink(yaffs_Object *parent, const YCHAR *name, -+ __u32 mode, __u32 uid, __u32 gid, -+ const YCHAR *alias) - { - return yaffs_MknodObject(YAFFS_OBJECT_TYPE_SYMLINK, parent, name, mode, -- uid, gid, NULL, alias, 0); -+ uid, gid, NULL, alias, 0); - } - - /* yaffs_Link returns the object id of the equivalent object.*/ --yaffs_Object *yaffs_Link(yaffs_Object * parent, const YCHAR * name, -- yaffs_Object * equivalentObject) -+yaffs_Object *yaffs_Link(yaffs_Object *parent, const YCHAR *name, -+ yaffs_Object *equivalentObject) - { - /* Get the real object in case we were fed a hard link as an equivalent object */ - equivalentObject = yaffs_GetEquivalentObject(equivalentObject); -@@ -2363,33 +2396,31 @@ yaffs_Object *yaffs_Link(yaffs_Object * - - } - --static int yaffs_ChangeObjectName(yaffs_Object * obj, yaffs_Object * newDir, -- const YCHAR * newName, int force, int shadows) -+static int yaffs_ChangeObjectName(yaffs_Object *obj, yaffs_Object *newDir, -+ const YCHAR *newName, int force, int shadows) - { - int unlinkOp; - int deleteOp; - - yaffs_Object *existingTarget; - -- if (newDir == NULL) { -+ if (newDir == NULL) - newDir = obj->parent; /* use the old directory */ -- } - - if (newDir->variantType != YAFFS_OBJECT_TYPE_DIRECTORY) { - T(YAFFS_TRACE_ALWAYS, - (TSTR -- ("tragendy: yaffs_ChangeObjectName: newDir is not a directory" -+ ("tragedy: yaffs_ChangeObjectName: newDir is not a directory" - TENDSTR))); - YBUG(); - } - - /* TODO: Do we need this different handling for YAFFS2 and YAFFS1?? */ -- if (obj->myDev->isYaffs2) { -+ if (obj->myDev->isYaffs2) - unlinkOp = (newDir == obj->myDev->unlinkedDir); -- } else { -+ else - unlinkOp = (newDir == obj->myDev->unlinkedDir - && obj->variantType == YAFFS_OBJECT_TYPE_FILE); -- } - - deleteOp = (newDir == obj->myDev->deletedDir); - -@@ -2415,40 +2446,40 @@ static int yaffs_ChangeObjectName(yaffs_ - obj->unlinked = 1; - - /* If it is a deletion then we mark it as a shrink for gc purposes. */ -- if (yaffs_UpdateObjectHeader(obj, newName, 0, deleteOp, shadows)>= 0) -+ if (yaffs_UpdateObjectHeader(obj, newName, 0, deleteOp, shadows) >= 0) - return YAFFS_OK; - } - - return YAFFS_FAIL; - } - --int yaffs_RenameObject(yaffs_Object * oldDir, const YCHAR * oldName, -- yaffs_Object * newDir, const YCHAR * newName) -+int yaffs_RenameObject(yaffs_Object *oldDir, const YCHAR *oldName, -+ yaffs_Object *newDir, const YCHAR *newName) - { -- yaffs_Object *obj; -- yaffs_Object *existingTarget; -+ yaffs_Object *obj = NULL; -+ yaffs_Object *existingTarget = NULL; - int force = 0; - -+ -+ if (!oldDir || oldDir->variantType != YAFFS_OBJECT_TYPE_DIRECTORY) -+ YBUG(); -+ if (!newDir || newDir->variantType != YAFFS_OBJECT_TYPE_DIRECTORY) -+ YBUG(); -+ - #ifdef CONFIG_YAFFS_CASE_INSENSITIVE - /* Special case for case insemsitive systems (eg. WinCE). - * While look-up is case insensitive, the name isn't. - * Therefore we might want to change x.txt to X.txt - */ -- if (oldDir == newDir && yaffs_strcmp(oldName, newName) == 0) { -+ if (oldDir == newDir && yaffs_strcmp(oldName, newName) == 0) - force = 1; -- } - #endif - -+ else if (yaffs_strlen(newName) > YAFFS_MAX_NAME_LENGTH) -+ /* ENAMETOOLONG */ -+ return YAFFS_FAIL; -+ - obj = yaffs_FindObjectByName(oldDir, oldName); -- /* Check new name to long. */ -- if (obj->variantType == YAFFS_OBJECT_TYPE_SYMLINK && -- yaffs_strlen(newName) > YAFFS_MAX_ALIAS_LENGTH) -- /* ENAMETOOLONG */ -- return YAFFS_FAIL; -- else if (obj->variantType != YAFFS_OBJECT_TYPE_SYMLINK && -- yaffs_strlen(newName) > YAFFS_MAX_NAME_LENGTH) -- /* ENAMETOOLONG */ -- return YAFFS_FAIL; - - if (obj && obj->renameAllowed) { - -@@ -2456,8 +2487,8 @@ int yaffs_RenameObject(yaffs_Object * ol - - existingTarget = yaffs_FindObjectByName(newDir, newName); - if (existingTarget && -- existingTarget->variantType == YAFFS_OBJECT_TYPE_DIRECTORY && -- !list_empty(&existingTarget->variant.directoryVariant.children)) { -+ existingTarget->variantType == YAFFS_OBJECT_TYPE_DIRECTORY && -+ !ylist_empty(&existingTarget->variant.directoryVariant.children)) { - /* There is a target that is a non-empty directory, so we fail */ - return YAFFS_FAIL; /* EEXIST or ENOTEMPTY */ - } else if (existingTarget && existingTarget != obj) { -@@ -2465,7 +2496,7 @@ int yaffs_RenameObject(yaffs_Object * ol - * but only if it isn't the same object - */ - yaffs_ChangeObjectName(obj, newDir, newName, force, -- existingTarget->objectId); -+ existingTarget->objectId); - yaffs_UnlinkObject(existingTarget); - } - -@@ -2476,7 +2507,7 @@ int yaffs_RenameObject(yaffs_Object * ol - - /*------------------------- Block Management and Page Allocation ----------------*/ - --static int yaffs_InitialiseBlocks(yaffs_Device * dev) -+static int yaffs_InitialiseBlocks(yaffs_Device *dev) - { - int nBlocks = dev->internalEndBlock - dev->internalStartBlock + 1; - -@@ -2487,23 +2518,20 @@ static int yaffs_InitialiseBlocks(yaffs_ - - /* If the first allocation strategy fails, thry the alternate one */ - dev->blockInfo = YMALLOC(nBlocks * sizeof(yaffs_BlockInfo)); -- if(!dev->blockInfo){ -+ if (!dev->blockInfo) { - dev->blockInfo = YMALLOC_ALT(nBlocks * sizeof(yaffs_BlockInfo)); - dev->blockInfoAlt = 1; -- } -- else -+ } else - dev->blockInfoAlt = 0; - -- if(dev->blockInfo){ -- -+ if (dev->blockInfo) { - /* Set up dynamic blockinfo stuff. */ - dev->chunkBitmapStride = (dev->nChunksPerBlock + 7) / 8; /* round up bytes */ - dev->chunkBits = YMALLOC(dev->chunkBitmapStride * nBlocks); -- if(!dev->chunkBits){ -+ if (!dev->chunkBits) { - dev->chunkBits = YMALLOC_ALT(dev->chunkBitmapStride * nBlocks); - dev->chunkBitsAlt = 1; -- } -- else -+ } else - dev->chunkBitsAlt = 0; - } - -@@ -2514,30 +2542,29 @@ static int yaffs_InitialiseBlocks(yaffs_ - } - - return YAFFS_FAIL; -- - } - --static void yaffs_DeinitialiseBlocks(yaffs_Device * dev) -+static void yaffs_DeinitialiseBlocks(yaffs_Device *dev) - { -- if(dev->blockInfoAlt && dev->blockInfo) -+ if (dev->blockInfoAlt && dev->blockInfo) - YFREE_ALT(dev->blockInfo); -- else if(dev->blockInfo) -+ else if (dev->blockInfo) - YFREE(dev->blockInfo); - - dev->blockInfoAlt = 0; - - dev->blockInfo = NULL; - -- if(dev->chunkBitsAlt && dev->chunkBits) -+ if (dev->chunkBitsAlt && dev->chunkBits) - YFREE_ALT(dev->chunkBits); -- else if(dev->chunkBits) -+ else if (dev->chunkBits) - YFREE(dev->chunkBits); - dev->chunkBitsAlt = 0; - dev->chunkBits = NULL; - } - --static int yaffs_BlockNotDisqualifiedFromGC(yaffs_Device * dev, -- yaffs_BlockInfo * bi) -+static int yaffs_BlockNotDisqualifiedFromGC(yaffs_Device *dev, -+ yaffs_BlockInfo *bi) - { - int i; - __u32 seq; -@@ -2556,7 +2583,7 @@ static int yaffs_BlockNotDisqualifiedFro - seq = dev->sequenceNumber; - - for (i = dev->internalStartBlock; i <= dev->internalEndBlock; -- i++) { -+ i++) { - b = yaffs_GetBlockInfo(dev, i); - if (b->blockState == YAFFS_BLOCK_STATE_FULL && - (b->pagesInUse - b->softDeletions) < -@@ -2571,38 +2598,36 @@ static int yaffs_BlockNotDisqualifiedFro - * discarded pages. - */ - return (bi->sequenceNumber <= dev->oldestDirtySequence); -- - } - - /* FindDiretiestBlock is used to select the dirtiest block (or close enough) - * for garbage collection. - */ - --static int yaffs_FindBlockForGarbageCollection(yaffs_Device * dev, -- int aggressive) -+static int yaffs_FindBlockForGarbageCollection(yaffs_Device *dev, -+ int aggressive) - { -- - int b = dev->currentDirtyChecker; - - int i; - int iterations; - int dirtiest = -1; - int pagesInUse = 0; -- int prioritised=0; -+ int prioritised = 0; - yaffs_BlockInfo *bi; - int pendingPrioritisedExist = 0; - - /* First let's see if we need to grab a prioritised block */ -- if(dev->hasPendingPrioritisedGCs){ -- for(i = dev->internalStartBlock; i < dev->internalEndBlock && !prioritised; i++){ -+ if (dev->hasPendingPrioritisedGCs) { -+ for (i = dev->internalStartBlock; i < dev->internalEndBlock && !prioritised; i++) { - - bi = yaffs_GetBlockInfo(dev, i); -- //yaffs_VerifyBlock(dev,bi,i); -+ /* yaffs_VerifyBlock(dev,bi,i); */ - -- if(bi->gcPrioritise) { -+ if (bi->gcPrioritise) { - pendingPrioritisedExist = 1; -- if(bi->blockState == YAFFS_BLOCK_STATE_FULL && -- yaffs_BlockNotDisqualifiedFromGC(dev, bi)){ -+ if (bi->blockState == YAFFS_BLOCK_STATE_FULL && -+ yaffs_BlockNotDisqualifiedFromGC(dev, bi)) { - pagesInUse = (bi->pagesInUse - bi->softDeletions); - dirtiest = i; - prioritised = 1; -@@ -2611,7 +2636,7 @@ static int yaffs_FindBlockForGarbageColl - } - } - -- if(!pendingPrioritisedExist) /* None found, so we can clear this */ -+ if (!pendingPrioritisedExist) /* None found, so we can clear this */ - dev->hasPendingPrioritisedGCs = 0; - } - -@@ -2623,31 +2648,28 @@ static int yaffs_FindBlockForGarbageColl - - dev->nonAggressiveSkip--; - -- if (!aggressive && (dev->nonAggressiveSkip > 0)) { -+ if (!aggressive && (dev->nonAggressiveSkip > 0)) - return -1; -- } - -- if(!prioritised) -+ if (!prioritised) - pagesInUse = -- (aggressive) ? dev->nChunksPerBlock : YAFFS_PASSIVE_GC_CHUNKS + 1; -+ (aggressive) ? dev->nChunksPerBlock : YAFFS_PASSIVE_GC_CHUNKS + 1; - -- if (aggressive) { -+ if (aggressive) - iterations = - dev->internalEndBlock - dev->internalStartBlock + 1; -- } else { -+ else { - iterations = - dev->internalEndBlock - dev->internalStartBlock + 1; - iterations = iterations / 16; -- if (iterations > 200) { -+ if (iterations > 200) - iterations = 200; -- } - } - - for (i = 0; i <= iterations && pagesInUse > 0 && !prioritised; i++) { - b++; -- if (b < dev->internalStartBlock || b > dev->internalEndBlock) { -+ if (b < dev->internalStartBlock || b > dev->internalEndBlock) - b = dev->internalStartBlock; -- } - - if (b < dev->internalStartBlock || b > dev->internalEndBlock) { - T(YAFFS_TRACE_ERROR, -@@ -2657,17 +2679,9 @@ static int yaffs_FindBlockForGarbageColl - - bi = yaffs_GetBlockInfo(dev, b); - --#if 0 -- if (bi->blockState == YAFFS_BLOCK_STATE_CHECKPOINT) { -- dirtiest = b; -- pagesInUse = 0; -- } -- else --#endif -- - if (bi->blockState == YAFFS_BLOCK_STATE_FULL && -- (bi->pagesInUse - bi->softDeletions) < pagesInUse && -- yaffs_BlockNotDisqualifiedFromGC(dev, bi)) { -+ (bi->pagesInUse - bi->softDeletions) < pagesInUse && -+ yaffs_BlockNotDisqualifiedFromGC(dev, bi)) { - dirtiest = b; - pagesInUse = (bi->pagesInUse - bi->softDeletions); - } -@@ -2678,19 +2692,18 @@ static int yaffs_FindBlockForGarbageColl - if (dirtiest > 0) { - T(YAFFS_TRACE_GC, - (TSTR("GC Selected block %d with %d free, prioritised:%d" TENDSTR), dirtiest, -- dev->nChunksPerBlock - pagesInUse,prioritised)); -+ dev->nChunksPerBlock - pagesInUse, prioritised)); - } - - dev->oldestDirtySequence = 0; - -- if (dirtiest > 0) { -+ if (dirtiest > 0) - dev->nonAggressiveSkip = 4; -- } - - return dirtiest; - } - --static void yaffs_BlockBecameDirty(yaffs_Device * dev, int blockNo) -+static void yaffs_BlockBecameDirty(yaffs_Device *dev, int blockNo) - { - yaffs_BlockInfo *bi = yaffs_GetBlockInfo(dev, blockNo); - -@@ -2752,7 +2765,7 @@ static void yaffs_BlockBecameDirty(yaffs - } - } - --static int yaffs_FindBlockForAllocation(yaffs_Device * dev) -+static int yaffs_FindBlockForAllocation(yaffs_Device *dev) - { - int i; - -@@ -2763,7 +2776,7 @@ static int yaffs_FindBlockForAllocation( - * Can't get space to gc - */ - T(YAFFS_TRACE_ERROR, -- (TSTR("yaffs tragedy: no more eraased blocks" TENDSTR))); -+ (TSTR("yaffs tragedy: no more erased blocks" TENDSTR))); - - return -1; - } -@@ -2794,31 +2807,74 @@ static int yaffs_FindBlockForAllocation( - - T(YAFFS_TRACE_ALWAYS, - (TSTR -- ("yaffs tragedy: no more eraased blocks, but there should have been %d" -+ ("yaffs tragedy: no more erased blocks, but there should have been %d" - TENDSTR), dev->nErasedBlocks)); - - return -1; - } - - --// Check if there's space to allocate... --// Thinks.... do we need top make this ths same as yaffs_GetFreeChunks()? --static int yaffs_CheckSpaceForAllocation(yaffs_Device * dev) -+ -+static int yaffs_CalcCheckpointBlocksRequired(yaffs_Device *dev) -+{ -+ if (!dev->nCheckpointBlocksRequired && -+ dev->isYaffs2) { -+ /* Not a valid value so recalculate */ -+ int nBytes = 0; -+ int nBlocks; -+ int devBlocks = (dev->endBlock - dev->startBlock + 1); -+ int tnodeSize; -+ -+ tnodeSize = (dev->tnodeWidth * YAFFS_NTNODES_LEVEL0)/8; -+ -+ if (tnodeSize < sizeof(yaffs_Tnode)) -+ tnodeSize = sizeof(yaffs_Tnode); -+ -+ nBytes += sizeof(yaffs_CheckpointValidity); -+ nBytes += sizeof(yaffs_CheckpointDevice); -+ nBytes += devBlocks * sizeof(yaffs_BlockInfo); -+ nBytes += devBlocks * dev->chunkBitmapStride; -+ nBytes += (sizeof(yaffs_CheckpointObject) + sizeof(__u32)) * (dev->nObjectsCreated - dev->nFreeObjects); -+ nBytes += (tnodeSize + sizeof(__u32)) * (dev->nTnodesCreated - dev->nFreeTnodes); -+ nBytes += sizeof(yaffs_CheckpointValidity); -+ nBytes += sizeof(__u32); /* checksum*/ -+ -+ /* Round up and add 2 blocks to allow for some bad blocks, so add 3 */ -+ -+ nBlocks = (nBytes/(dev->nDataBytesPerChunk * dev->nChunksPerBlock)) + 3; -+ -+ dev->nCheckpointBlocksRequired = nBlocks; -+ } -+ -+ return dev->nCheckpointBlocksRequired; -+} -+ -+/* -+ * Check if there's space to allocate... -+ * Thinks.... do we need top make this ths same as yaffs_GetFreeChunks()? -+ */ -+static int yaffs_CheckSpaceForAllocation(yaffs_Device *dev) - { - int reservedChunks; - int reservedBlocks = dev->nReservedBlocks; - int checkpointBlocks; - -- checkpointBlocks = dev->nCheckpointReservedBlocks - dev->blocksInCheckpoint; -- if(checkpointBlocks < 0) -+ if (dev->isYaffs2) { -+ checkpointBlocks = yaffs_CalcCheckpointBlocksRequired(dev) - -+ dev->blocksInCheckpoint; -+ if (checkpointBlocks < 0) -+ checkpointBlocks = 0; -+ } else { - checkpointBlocks = 0; -+ } - - reservedChunks = ((reservedBlocks + checkpointBlocks) * dev->nChunksPerBlock); - - return (dev->nFreeChunks > reservedChunks); - } - --static int yaffs_AllocateChunk(yaffs_Device * dev, int useReserve, yaffs_BlockInfo **blockUsedPtr) -+static int yaffs_AllocateChunk(yaffs_Device *dev, int useReserve, -+ yaffs_BlockInfo **blockUsedPtr) - { - int retVal; - yaffs_BlockInfo *bi; -@@ -2835,7 +2891,7 @@ static int yaffs_AllocateChunk(yaffs_Dev - } - - if (dev->nErasedBlocks < dev->nReservedBlocks -- && dev->allocationPage == 0) { -+ && dev->allocationPage == 0) { - T(YAFFS_TRACE_ALLOCATE, (TSTR("Allocating reserve" TENDSTR))); - } - -@@ -2844,10 +2900,10 @@ static int yaffs_AllocateChunk(yaffs_Dev - bi = yaffs_GetBlockInfo(dev, dev->allocationBlock); - - retVal = (dev->allocationBlock * dev->nChunksPerBlock) + -- dev->allocationPage; -+ dev->allocationPage; - bi->pagesInUse++; - yaffs_SetChunkBit(dev, dev->allocationBlock, -- dev->allocationPage); -+ dev->allocationPage); - - dev->allocationPage++; - -@@ -2859,43 +2915,43 @@ static int yaffs_AllocateChunk(yaffs_Dev - dev->allocationBlock = -1; - } - -- if(blockUsedPtr) -+ if (blockUsedPtr) - *blockUsedPtr = bi; - - return retVal; - } - - T(YAFFS_TRACE_ERROR, -- (TSTR("!!!!!!!!! Allocator out !!!!!!!!!!!!!!!!!" TENDSTR))); -+ (TSTR("!!!!!!!!! Allocator out !!!!!!!!!!!!!!!!!" TENDSTR))); - - return -1; - } - --static int yaffs_GetErasedChunks(yaffs_Device * dev) -+static int yaffs_GetErasedChunks(yaffs_Device *dev) - { - int n; - - n = dev->nErasedBlocks * dev->nChunksPerBlock; - -- if (dev->allocationBlock > 0) { -+ if (dev->allocationBlock > 0) - n += (dev->nChunksPerBlock - dev->allocationPage); -- } - - return n; - - } - --static int yaffs_GarbageCollectBlock(yaffs_Device * dev, int block) -+static int yaffs_GarbageCollectBlock(yaffs_Device *dev, int block, -+ int wholeBlock) - { - int oldChunk; - int newChunk; -- int chunkInBlock; - int markNAND; - int retVal = YAFFS_OK; - int cleanups = 0; - int i; - int isCheckpointBlock; - int matchingChunk; -+ int maxCopies; - - int chunksBefore = yaffs_GetErasedChunks(dev); - int chunksAfter; -@@ -2911,8 +2967,11 @@ static int yaffs_GarbageCollectBlock(yaf - bi->blockState = YAFFS_BLOCK_STATE_COLLECTING; - - T(YAFFS_TRACE_TRACING, -- (TSTR("Collecting block %d, in use %d, shrink %d, " TENDSTR), block, -- bi->pagesInUse, bi->hasShrinkHeader)); -+ (TSTR("Collecting block %d, in use %d, shrink %d, wholeBlock %d" TENDSTR), -+ block, -+ bi->pagesInUse, -+ bi->hasShrinkHeader, -+ wholeBlock)); - - /*yaffs_VerifyFreeChunks(dev); */ - -@@ -2926,26 +2985,33 @@ static int yaffs_GarbageCollectBlock(yaf - dev->isDoingGC = 1; - - if (isCheckpointBlock || -- !yaffs_StillSomeChunkBits(dev, block)) { -+ !yaffs_StillSomeChunkBits(dev, block)) { - T(YAFFS_TRACE_TRACING, -- (TSTR -- ("Collecting block %d that has no chunks in use" TENDSTR), -- block)); -+ (TSTR -+ ("Collecting block %d that has no chunks in use" TENDSTR), -+ block)); - yaffs_BlockBecameDirty(dev, block); - } else { - - __u8 *buffer = yaffs_GetTempBuffer(dev, __LINE__); - -- yaffs_VerifyBlock(dev,bi,block); -+ yaffs_VerifyBlock(dev, bi, block); - -- for (chunkInBlock = 0, oldChunk = block * dev->nChunksPerBlock; -- chunkInBlock < dev->nChunksPerBlock -- && yaffs_StillSomeChunkBits(dev, block); -- chunkInBlock++, oldChunk++) { -- if (yaffs_CheckChunkBit(dev, block, chunkInBlock)) { -+ maxCopies = (wholeBlock) ? dev->nChunksPerBlock : 10; -+ oldChunk = block * dev->nChunksPerBlock + dev->gcChunk; -+ -+ for (/* init already done */; -+ retVal == YAFFS_OK && -+ dev->gcChunk < dev->nChunksPerBlock && -+ (bi->blockState == YAFFS_BLOCK_STATE_COLLECTING) && -+ maxCopies > 0; -+ dev->gcChunk++, oldChunk++) { -+ if (yaffs_CheckChunkBit(dev, block, dev->gcChunk)) { - - /* This page is in use and might need to be copied off */ - -+ maxCopies--; -+ - markNAND = 1; - - yaffs_InitialiseTags(&tags); -@@ -2959,22 +3025,22 @@ static int yaffs_GarbageCollectBlock(yaf - - T(YAFFS_TRACE_GC_DETAIL, - (TSTR -- ("Collecting page %d, %d %d %d " TENDSTR), -- chunkInBlock, tags.objectId, tags.chunkId, -+ ("Collecting chunk in block %d, %d %d %d " TENDSTR), -+ dev->gcChunk, tags.objectId, tags.chunkId, - tags.byteCount)); - -- if(object && !yaffs_SkipVerification(dev)){ -- if(tags.chunkId == 0) -- matchingChunk = object->chunkId; -- else if(object->softDeleted) -+ if (object && !yaffs_SkipVerification(dev)) { -+ if (tags.chunkId == 0) -+ matchingChunk = object->hdrChunk; -+ else if (object->softDeleted) - matchingChunk = oldChunk; /* Defeat the test */ - else -- matchingChunk = yaffs_FindChunkInFile(object,tags.chunkId,NULL); -+ matchingChunk = yaffs_FindChunkInFile(object, tags.chunkId, NULL); - -- if(oldChunk != matchingChunk) -+ if (oldChunk != matchingChunk) - T(YAFFS_TRACE_ERROR, - (TSTR("gc: page in gc mismatch: %d %d %d %d"TENDSTR), -- oldChunk,matchingChunk,tags.objectId, tags.chunkId)); -+ oldChunk, matchingChunk, tags.objectId, tags.chunkId)); - - } - -@@ -2986,9 +3052,11 @@ static int yaffs_GarbageCollectBlock(yaf - tags.objectId, tags.chunkId, tags.byteCount)); - } - -- if (object && object->deleted -- && tags.chunkId != 0) { -- /* Data chunk in a deleted file, throw it away -+ if (object && -+ object->deleted && -+ object->softDeleted && -+ tags.chunkId != 0) { -+ /* Data chunk in a soft deleted file, throw it away - * It's a soft deleted data chunk, - * No need to copy this, just forget about it and - * fix up the object. -@@ -3003,13 +3071,12 @@ static int yaffs_GarbageCollectBlock(yaf - cleanups++; - } - markNAND = 0; -- } else if (0 -- /* Todo object && object->deleted && object->nDataChunks == 0 */ -- ) { -+ } else if (0) { -+ /* Todo object && object->deleted && object->nDataChunks == 0 */ - /* Deleted object header with no data chunks. - * Can be discarded and the file deleted. - */ -- object->chunkId = 0; -+ object->hdrChunk = 0; - yaffs_FreeTnode(object->myDev, - object->variant. - fileVariant.top); -@@ -3031,17 +3098,14 @@ static int yaffs_GarbageCollectBlock(yaf - * We need to nuke the shrinkheader flags first - * We no longer want the shrinkHeader flag since its work is done - * and if it is left in place it will mess up scanning. -- * Also, clear out any shadowing stuff - */ - - yaffs_ObjectHeader *oh; - oh = (yaffs_ObjectHeader *)buffer; - oh->isShrink = 0; -- oh->shadowsObject = -1; -- tags.extraShadows = 0; - tags.extraIsShrinkHeader = 0; - -- yaffs_VerifyObjectHeader(object,oh,&tags,1); -+ yaffs_VerifyObjectHeader(object, oh, &tags, 1); - } - - newChunk = -@@ -3055,7 +3119,7 @@ static int yaffs_GarbageCollectBlock(yaf - - if (tags.chunkId == 0) { - /* It's a header */ -- object->chunkId = newChunk; -+ object->hdrChunk = newChunk; - object->serial = tags.serialNumber; - } else { - /* It's a data chunk */ -@@ -3067,7 +3131,8 @@ static int yaffs_GarbageCollectBlock(yaf - } - } - -- yaffs_DeleteChunk(dev, oldChunk, markNAND, __LINE__); -+ if (retVal == YAFFS_OK) -+ yaffs_DeleteChunk(dev, oldChunk, markNAND, __LINE__); - - } - } -@@ -3098,18 +3163,25 @@ static int yaffs_GarbageCollectBlock(yaf - - } - -- yaffs_VerifyCollectedBlock(dev,bi,block); -+ yaffs_VerifyCollectedBlock(dev, bi, block); - -- if (chunksBefore >= (chunksAfter = yaffs_GetErasedChunks(dev))) { -+ chunksAfter = yaffs_GetErasedChunks(dev); -+ if (chunksBefore >= chunksAfter) { - T(YAFFS_TRACE_GC, - (TSTR - ("gc did not increase free chunks before %d after %d" - TENDSTR), chunksBefore, chunksAfter)); - } - -+ /* If the gc completed then clear the current gcBlock so that we find another. */ -+ if (bi->blockState != YAFFS_BLOCK_STATE_COLLECTING) { -+ dev->gcBlock = -1; -+ dev->gcChunk = 0; -+ } -+ - dev->isDoingGC = 0; - -- return YAFFS_OK; -+ return retVal; - } - - /* New garbage collector -@@ -3121,7 +3193,7 @@ static int yaffs_GarbageCollectBlock(yaf - * The idea is to help clear out space in a more spread-out manner. - * Dunno if it really does anything useful. - */ --static int yaffs_CheckGarbageCollection(yaffs_Device * dev) -+static int yaffs_CheckGarbageCollection(yaffs_Device *dev) - { - int block; - int aggressive; -@@ -3142,8 +3214,8 @@ static int yaffs_CheckGarbageCollection( - do { - maxTries++; - -- checkpointBlockAdjust = (dev->nCheckpointReservedBlocks - dev->blocksInCheckpoint); -- if(checkpointBlockAdjust < 0) -+ checkpointBlockAdjust = yaffs_CalcCheckpointBlocksRequired(dev) - dev->blocksInCheckpoint; -+ if (checkpointBlockAdjust < 0) - checkpointBlockAdjust = 0; - - if (dev->nErasedBlocks < (dev->nReservedBlocks + checkpointBlockAdjust + 2)) { -@@ -3154,20 +3226,24 @@ static int yaffs_CheckGarbageCollection( - aggressive = 0; - } - -- block = yaffs_FindBlockForGarbageCollection(dev, aggressive); -+ if (dev->gcBlock <= 0) { -+ dev->gcBlock = yaffs_FindBlockForGarbageCollection(dev, aggressive); -+ dev->gcChunk = 0; -+ } -+ -+ block = dev->gcBlock; - - if (block > 0) { - dev->garbageCollections++; -- if (!aggressive) { -+ if (!aggressive) - dev->passiveGarbageCollections++; -- } - - T(YAFFS_TRACE_GC, - (TSTR - ("yaffs: GC erasedBlocks %d aggressive %d" TENDSTR), - dev->nErasedBlocks, aggressive)); - -- gcOk = yaffs_GarbageCollectBlock(dev, block); -+ gcOk = yaffs_GarbageCollectBlock(dev, block, aggressive); - } - - if (dev->nErasedBlocks < (dev->nReservedBlocks) && block > 0) { -@@ -3176,15 +3252,16 @@ static int yaffs_CheckGarbageCollection( - ("yaffs: GC !!!no reclaim!!! erasedBlocks %d after try %d block %d" - TENDSTR), dev->nErasedBlocks, maxTries, block)); - } -- } while ((dev->nErasedBlocks < dev->nReservedBlocks) && (block > 0) -- && (maxTries < 2)); -+ } while ((dev->nErasedBlocks < dev->nReservedBlocks) && -+ (block > 0) && -+ (maxTries < 2)); - - return aggressive ? gcOk : YAFFS_OK; - } - - /*------------------------- TAGS --------------------------------*/ - --static int yaffs_TagsMatch(const yaffs_ExtendedTags * tags, int objectId, -+static int yaffs_TagsMatch(const yaffs_ExtendedTags *tags, int objectId, - int chunkInObject) - { - return (tags->chunkId == chunkInObject && -@@ -3195,8 +3272,8 @@ static int yaffs_TagsMatch(const yaffs_E - - /*-------------------- Data file manipulation -----------------*/ - --static int yaffs_FindChunkInFile(yaffs_Object * in, int chunkInInode, -- yaffs_ExtendedTags * tags) -+static int yaffs_FindChunkInFile(yaffs_Object *in, int chunkInInode, -+ yaffs_ExtendedTags *tags) - { - /*Get the Tnode, then get the level 0 offset chunk offset */ - yaffs_Tnode *tn; -@@ -3214,7 +3291,7 @@ static int yaffs_FindChunkInFile(yaffs_O - tn = yaffs_FindLevel0Tnode(dev, &in->variant.fileVariant, chunkInInode); - - if (tn) { -- theChunk = yaffs_GetChunkGroupBase(dev,tn,chunkInInode); -+ theChunk = yaffs_GetChunkGroupBase(dev, tn, chunkInInode); - - retVal = - yaffs_FindChunkInGroup(dev, theChunk, tags, in->objectId, -@@ -3223,8 +3300,8 @@ static int yaffs_FindChunkInFile(yaffs_O - return retVal; - } - --static int yaffs_FindAndDeleteChunkInFile(yaffs_Object * in, int chunkInInode, -- yaffs_ExtendedTags * tags) -+static int yaffs_FindAndDeleteChunkInFile(yaffs_Object *in, int chunkInInode, -+ yaffs_ExtendedTags *tags) - { - /* Get the Tnode, then get the level 0 offset chunk offset */ - yaffs_Tnode *tn; -@@ -3243,29 +3320,23 @@ static int yaffs_FindAndDeleteChunkInFil - - if (tn) { - -- theChunk = yaffs_GetChunkGroupBase(dev,tn,chunkInInode); -+ theChunk = yaffs_GetChunkGroupBase(dev, tn, chunkInInode); - - retVal = - yaffs_FindChunkInGroup(dev, theChunk, tags, in->objectId, - chunkInInode); - - /* Delete the entry in the filestructure (if found) */ -- if (retVal != -1) { -- yaffs_PutLevel0Tnode(dev,tn,chunkInInode,0); -- } -- } else { -- /*T(("No level 0 found for %d\n", chunkInInode)); */ -+ if (retVal != -1) -+ yaffs_PutLevel0Tnode(dev, tn, chunkInInode, 0); - } - -- if (retVal == -1) { -- /* T(("Could not find %d to delete\n",chunkInInode)); */ -- } - return retVal; - } - - #ifdef YAFFS_PARANOID - --static int yaffs_CheckFileSanity(yaffs_Object * in) -+static int yaffs_CheckFileSanity(yaffs_Object *in) - { - int chunk; - int nChunks; -@@ -3278,10 +3349,8 @@ static int yaffs_CheckFileSanity(yaffs_O - int theChunk; - int chunkDeleted; - -- if (in->variantType != YAFFS_OBJECT_TYPE_FILE) { -- /* T(("Object not a file\n")); */ -+ if (in->variantType != YAFFS_OBJECT_TYPE_FILE) - return YAFFS_FAIL; -- } - - objId = in->objectId; - fSize = in->variant.fileVariant.fileSize; -@@ -3294,7 +3363,7 @@ static int yaffs_CheckFileSanity(yaffs_O - - if (tn) { - -- theChunk = yaffs_GetChunkGroupBase(dev,tn,chunk); -+ theChunk = yaffs_GetChunkGroupBase(dev, tn, chunk); - - if (yaffs_CheckChunkBits - (dev, theChunk / dev->nChunksPerBlock, -@@ -3323,7 +3392,7 @@ static int yaffs_CheckFileSanity(yaffs_O - - #endif - --static int yaffs_PutChunkIntoFile(yaffs_Object * in, int chunkInInode, -+static int yaffs_PutChunkIntoFile(yaffs_Object *in, int chunkInInode, - int chunkInNAND, int inScan) - { - /* NB inScan is zero unless scanning. -@@ -3358,11 +3427,10 @@ static int yaffs_PutChunkIntoFile(yaffs_ - &in->variant.fileVariant, - chunkInInode, - NULL); -- if (!tn) { -+ if (!tn) - return YAFFS_FAIL; -- } - -- existingChunk = yaffs_GetChunkGroupBase(dev,tn,chunkInInode); -+ existingChunk = yaffs_GetChunkGroupBase(dev, tn, chunkInInode); - - if (inScan != 0) { - /* If we're scanning then we need to test for duplicates -@@ -3374,7 +3442,7 @@ static int yaffs_PutChunkIntoFile(yaffs_ - * Update: For backward scanning we don't need to re-read tags so this is quite cheap. - */ - -- if (existingChunk != 0) { -+ if (existingChunk > 0) { - /* NB Right now existing chunk will not be real chunkId if the device >= 32MB - * thus we have to do a FindChunkInFile to get the real chunk id. - * -@@ -3411,8 +3479,10 @@ static int yaffs_PutChunkIntoFile(yaffs_ - * not be loaded during a scan - */ - -- newSerial = newTags.serialNumber; -- existingSerial = existingTags.serialNumber; -+ if (inScan > 0) { -+ newSerial = newTags.serialNumber; -+ existingSerial = existingTags.serialNumber; -+ } - - if ((inScan > 0) && - (in->myDev->isYaffs2 || -@@ -3437,24 +3507,23 @@ static int yaffs_PutChunkIntoFile(yaffs_ - - } - -- if (existingChunk == 0) { -+ if (existingChunk == 0) - in->nDataChunks++; -- } - -- yaffs_PutLevel0Tnode(dev,tn,chunkInInode,chunkInNAND); -+ yaffs_PutLevel0Tnode(dev, tn, chunkInInode, chunkInNAND); - - return YAFFS_OK; - } - --static int yaffs_ReadChunkDataFromObject(yaffs_Object * in, int chunkInInode, -- __u8 * buffer) -+static int yaffs_ReadChunkDataFromObject(yaffs_Object *in, int chunkInInode, -+ __u8 *buffer) - { - int chunkInNAND = yaffs_FindChunkInFile(in, chunkInInode, NULL); - -- if (chunkInNAND >= 0) { -+ if (chunkInNAND >= 0) - return yaffs_ReadChunkWithTagsFromNAND(in->myDev, chunkInNAND, -- buffer,NULL); -- } else { -+ buffer, NULL); -+ else { - T(YAFFS_TRACE_NANDACCESS, - (TSTR("Chunk %d not found zero instead" TENDSTR), - chunkInNAND)); -@@ -3465,7 +3534,7 @@ static int yaffs_ReadChunkDataFromObject - - } - --void yaffs_DeleteChunk(yaffs_Device * dev, int chunkId, int markNAND, int lyn) -+void yaffs_DeleteChunk(yaffs_Device *dev, int chunkId, int markNAND, int lyn) - { - int block; - int page; -@@ -3475,16 +3544,15 @@ void yaffs_DeleteChunk(yaffs_Device * de - if (chunkId <= 0) - return; - -- - dev->nDeletions++; - block = chunkId / dev->nChunksPerBlock; - page = chunkId % dev->nChunksPerBlock; - - -- if(!yaffs_CheckChunkBit(dev,block,page)) -+ if (!yaffs_CheckChunkBit(dev, block, page)) - T(YAFFS_TRACE_VERIFY, -- (TSTR("Deleting invalid chunk %d"TENDSTR), -- chunkId)); -+ (TSTR("Deleting invalid chunk %d"TENDSTR), -+ chunkId)); - - bi = yaffs_GetBlockInfo(dev, block); - -@@ -3524,14 +3592,12 @@ void yaffs_DeleteChunk(yaffs_Device * de - yaffs_BlockBecameDirty(dev, block); - } - -- } else { -- /* T(("Bad news deleting chunk %d\n",chunkId)); */ - } - - } - --static int yaffs_WriteChunkDataToObject(yaffs_Object * in, int chunkInInode, -- const __u8 * buffer, int nBytes, -+static int yaffs_WriteChunkDataToObject(yaffs_Object *in, int chunkInInode, -+ const __u8 *buffer, int nBytes, - int useReserve) - { - /* Find old chunk Need to do this to get serial number -@@ -3561,6 +3627,12 @@ static int yaffs_WriteChunkDataToObject( - (prevChunkId >= 0) ? prevTags.serialNumber + 1 : 1; - newTags.byteCount = nBytes; - -+ if (nBytes < 1 || nBytes > dev->totalBytesPerChunk) { -+ T(YAFFS_TRACE_ERROR, -+ (TSTR("Writing %d bytes to chunk!!!!!!!!!" TENDSTR), nBytes)); -+ YBUG(); -+ } -+ - newChunkId = - yaffs_WriteNewChunkWithTagsToNAND(dev, buffer, &newTags, - useReserve); -@@ -3568,11 +3640,9 @@ static int yaffs_WriteChunkDataToObject( - if (newChunkId >= 0) { - yaffs_PutChunkIntoFile(in, chunkInInode, newChunkId, 0); - -- if (prevChunkId >= 0) { -+ if (prevChunkId >= 0) - yaffs_DeleteChunk(dev, prevChunkId, 1, __LINE__); - -- } -- - yaffs_CheckFileSanity(in); - } - return newChunkId; -@@ -3582,7 +3652,7 @@ static int yaffs_WriteChunkDataToObject( - /* UpdateObjectHeader updates the header on NAND for an object. - * If name is not NULL, then that new name is used. - */ --int yaffs_UpdateObjectHeader(yaffs_Object * in, const YCHAR * name, int force, -+int yaffs_UpdateObjectHeader(yaffs_Object *in, const YCHAR *name, int force, - int isShrink, int shadows) - { - -@@ -3603,9 +3673,12 @@ int yaffs_UpdateObjectHeader(yaffs_Objec - - yaffs_ObjectHeader *oh = NULL; - -- yaffs_strcpy(oldName,"silly old name"); -+ yaffs_strcpy(oldName, _Y("silly old name")); - -- if (!in->fake || force) { -+ -+ if (!in->fake || -+ in == dev->rootDir || /* The rootDir should also be saved */ -+ force) { - - yaffs_CheckGarbageCollection(dev); - yaffs_CheckObjectDetailsLoaded(in); -@@ -3613,13 +3686,13 @@ int yaffs_UpdateObjectHeader(yaffs_Objec - buffer = yaffs_GetTempBuffer(in->myDev, __LINE__); - oh = (yaffs_ObjectHeader *) buffer; - -- prevChunkId = in->chunkId; -+ prevChunkId = in->hdrChunk; - -- if (prevChunkId >= 0) { -+ if (prevChunkId > 0) { - result = yaffs_ReadChunkWithTagsFromNAND(dev, prevChunkId, - buffer, &oldTags); - -- yaffs_VerifyObjectHeader(in,oh,&oldTags,0); -+ yaffs_VerifyObjectHeader(in, oh, &oldTags, 0); - - memcpy(oldName, oh->name, sizeof(oh->name)); - } -@@ -3628,7 +3701,7 @@ int yaffs_UpdateObjectHeader(yaffs_Objec - - oh->type = in->variantType; - oh->yst_mode = in->yst_mode; -- oh->shadowsObject = shadows; -+ oh->shadowsObject = oh->inbandShadowsObject = shadows; - - #ifdef CONFIG_YAFFS_WINCE - oh->win_atime[0] = in->win_atime[0]; -@@ -3645,20 +3718,18 @@ int yaffs_UpdateObjectHeader(yaffs_Objec - oh->yst_ctime = in->yst_ctime; - oh->yst_rdev = in->yst_rdev; - #endif -- if (in->parent) { -+ if (in->parent) - oh->parentObjectId = in->parent->objectId; -- } else { -+ else - oh->parentObjectId = 0; -- } - - if (name && *name) { - memset(oh->name, 0, sizeof(oh->name)); - yaffs_strncpy(oh->name, name, YAFFS_MAX_NAME_LENGTH); -- } else if (prevChunkId>=0) { -+ } else if (prevChunkId >= 0) - memcpy(oh->name, oldName, sizeof(oh->name)); -- } else { -+ else - memset(oh->name, 0, sizeof(oh->name)); -- } - - oh->isShrink = isShrink; - -@@ -3708,7 +3779,7 @@ int yaffs_UpdateObjectHeader(yaffs_Objec - newTags.extraShadows = (oh->shadowsObject > 0) ? 1 : 0; - newTags.extraObjectType = in->variantType; - -- yaffs_VerifyObjectHeader(in,oh,&newTags,1); -+ yaffs_VerifyObjectHeader(in, oh, &newTags, 1); - - /* Create new chunk in NAND */ - newChunkId = -@@ -3717,20 +3788,20 @@ int yaffs_UpdateObjectHeader(yaffs_Objec - - if (newChunkId >= 0) { - -- in->chunkId = newChunkId; -+ in->hdrChunk = newChunkId; - - if (prevChunkId >= 0) { - yaffs_DeleteChunk(dev, prevChunkId, 1, - __LINE__); - } - -- if(!yaffs_ObjectHasCachedWriteData(in)) -+ if (!yaffs_ObjectHasCachedWriteData(in)) - in->dirty = 0; - - /* If this was a shrink, then mark the block that the chunk lives on */ - if (isShrink) { - bi = yaffs_GetBlockInfo(in->myDev, -- newChunkId /in->myDev-> nChunksPerBlock); -+ newChunkId / in->myDev->nChunksPerBlock); - bi->hasShrinkHeader = 1; - } - -@@ -3766,7 +3837,7 @@ static int yaffs_ObjectHasCachedWriteDat - yaffs_ChunkCache *cache; - int nCaches = obj->myDev->nShortOpCaches; - -- for(i = 0; i < nCaches; i++){ -+ for (i = 0; i < nCaches; i++) { - cache = &dev->srCache[i]; - if (cache->object == obj && - cache->dirty) -@@ -3777,7 +3848,7 @@ static int yaffs_ObjectHasCachedWriteDat - } - - --static void yaffs_FlushFilesChunkCache(yaffs_Object * obj) -+static void yaffs_FlushFilesChunkCache(yaffs_Object *obj) - { - yaffs_Device *dev = obj->myDev; - int lowest = -99; /* Stop compiler whining. */ -@@ -3844,16 +3915,16 @@ void yaffs_FlushEntireDeviceCache(yaffs_ - */ - do { - obj = NULL; -- for( i = 0; i < nCaches && !obj; i++) { -+ for (i = 0; i < nCaches && !obj; i++) { - if (dev->srCache[i].object && - dev->srCache[i].dirty) - obj = dev->srCache[i].object; - - } -- if(obj) -+ if (obj) - yaffs_FlushFilesChunkCache(obj); - -- } while(obj); -+ } while (obj); - - } - -@@ -3863,41 +3934,21 @@ void yaffs_FlushEntireDeviceCache(yaffs_ - * Then look for the least recently used non-dirty one. - * Then look for the least recently used dirty one...., flush and look again. - */ --static yaffs_ChunkCache *yaffs_GrabChunkCacheWorker(yaffs_Device * dev) -+static yaffs_ChunkCache *yaffs_GrabChunkCacheWorker(yaffs_Device *dev) - { - int i; -- int usage; -- int theOne; - - if (dev->nShortOpCaches > 0) { - for (i = 0; i < dev->nShortOpCaches; i++) { - if (!dev->srCache[i].object) - return &dev->srCache[i]; - } -+ } - -- return NULL; -+ return NULL; -+} - -- theOne = -1; -- usage = 0; /* just to stop the compiler grizzling */ -- -- for (i = 0; i < dev->nShortOpCaches; i++) { -- if (!dev->srCache[i].dirty && -- ((dev->srCache[i].lastUse < usage && theOne >= 0) || -- theOne < 0)) { -- usage = dev->srCache[i].lastUse; -- theOne = i; -- } -- } -- -- -- return theOne >= 0 ? &dev->srCache[theOne] : NULL; -- } else { -- return NULL; -- } -- --} -- --static yaffs_ChunkCache *yaffs_GrabChunkCache(yaffs_Device * dev) -+static yaffs_ChunkCache *yaffs_GrabChunkCache(yaffs_Device *dev) - { - yaffs_ChunkCache *cache; - yaffs_Object *theObj; -@@ -3927,8 +3978,7 @@ static yaffs_ChunkCache *yaffs_GrabChunk - for (i = 0; i < dev->nShortOpCaches; i++) { - if (dev->srCache[i].object && - !dev->srCache[i].locked && -- (dev->srCache[i].lastUse < usage || !cache)) -- { -+ (dev->srCache[i].lastUse < usage || !cache)) { - usage = dev->srCache[i].lastUse; - theObj = dev->srCache[i].object; - cache = &dev->srCache[i]; -@@ -3950,7 +4000,7 @@ static yaffs_ChunkCache *yaffs_GrabChunk - } - - /* Find a cached chunk */ --static yaffs_ChunkCache *yaffs_FindChunkCache(const yaffs_Object * obj, -+static yaffs_ChunkCache *yaffs_FindChunkCache(const yaffs_Object *obj, - int chunkId) - { - yaffs_Device *dev = obj->myDev; -@@ -3969,7 +4019,7 @@ static yaffs_ChunkCache *yaffs_FindChunk - } - - /* Mark the chunk for the least recently used algorithym */ --static void yaffs_UseChunkCache(yaffs_Device * dev, yaffs_ChunkCache * cache, -+static void yaffs_UseChunkCache(yaffs_Device *dev, yaffs_ChunkCache *cache, - int isAWrite) - { - -@@ -3977,9 +4027,9 @@ static void yaffs_UseChunkCache(yaffs_De - if (dev->srLastUse < 0 || dev->srLastUse > 100000000) { - /* Reset the cache usages */ - int i; -- for (i = 1; i < dev->nShortOpCaches; i++) { -+ for (i = 1; i < dev->nShortOpCaches; i++) - dev->srCache[i].lastUse = 0; -- } -+ - dev->srLastUse = 0; - } - -@@ -3987,9 +4037,8 @@ static void yaffs_UseChunkCache(yaffs_De - - cache->lastUse = dev->srLastUse; - -- if (isAWrite) { -+ if (isAWrite) - cache->dirty = 1; -- } - } - } - -@@ -3997,21 +4046,20 @@ static void yaffs_UseChunkCache(yaffs_De - * Do this when a whole page gets written, - * ie the short cache for this page is no longer valid. - */ --static void yaffs_InvalidateChunkCache(yaffs_Object * object, int chunkId) -+static void yaffs_InvalidateChunkCache(yaffs_Object *object, int chunkId) - { - if (object->myDev->nShortOpCaches > 0) { - yaffs_ChunkCache *cache = yaffs_FindChunkCache(object, chunkId); - -- if (cache) { -+ if (cache) - cache->object = NULL; -- } - } - } - - /* Invalidate all the cache pages associated with this object - * Do this whenever ther file is deleted or resized. - */ --static void yaffs_InvalidateWholeChunkCache(yaffs_Object * in) -+static void yaffs_InvalidateWholeChunkCache(yaffs_Object *in) - { - int i; - yaffs_Device *dev = in->myDev; -@@ -4019,9 +4067,8 @@ static void yaffs_InvalidateWholeChunkCa - if (dev->nShortOpCaches > 0) { - /* Invalidate it. */ - for (i = 0; i < dev->nShortOpCaches; i++) { -- if (dev->srCache[i].object == in) { -+ if (dev->srCache[i].object == in) - dev->srCache[i].object = NULL; -- } - } - } - } -@@ -4029,18 +4076,18 @@ static void yaffs_InvalidateWholeChunkCa - /*--------------------- Checkpointing --------------------*/ - - --static int yaffs_WriteCheckpointValidityMarker(yaffs_Device *dev,int head) -+static int yaffs_WriteCheckpointValidityMarker(yaffs_Device *dev, int head) - { - yaffs_CheckpointValidity cp; - -- memset(&cp,0,sizeof(cp)); -+ memset(&cp, 0, sizeof(cp)); - - cp.structType = sizeof(cp); - cp.magic = YAFFS_MAGIC; - cp.version = YAFFS_CHECKPOINT_VERSION; - cp.head = (head) ? 1 : 0; - -- return (yaffs_CheckpointWrite(dev,&cp,sizeof(cp)) == sizeof(cp))? -+ return (yaffs_CheckpointWrite(dev, &cp, sizeof(cp)) == sizeof(cp)) ? - 1 : 0; - } - -@@ -4049,9 +4096,9 @@ static int yaffs_ReadCheckpointValidityM - yaffs_CheckpointValidity cp; - int ok; - -- ok = (yaffs_CheckpointRead(dev,&cp,sizeof(cp)) == sizeof(cp)); -+ ok = (yaffs_CheckpointRead(dev, &cp, sizeof(cp)) == sizeof(cp)); - -- if(ok) -+ if (ok) - ok = (cp.structType == sizeof(cp)) && - (cp.magic == YAFFS_MAGIC) && - (cp.version == YAFFS_CHECKPOINT_VERSION) && -@@ -4100,21 +4147,21 @@ static int yaffs_WriteCheckpointDevice(y - int ok; - - /* Write device runtime values*/ -- yaffs_DeviceToCheckpointDevice(&cp,dev); -+ yaffs_DeviceToCheckpointDevice(&cp, dev); - cp.structType = sizeof(cp); - -- ok = (yaffs_CheckpointWrite(dev,&cp,sizeof(cp)) == sizeof(cp)); -+ ok = (yaffs_CheckpointWrite(dev, &cp, sizeof(cp)) == sizeof(cp)); - - /* Write block info */ -- if(ok) { -+ if (ok) { - nBytes = nBlocks * sizeof(yaffs_BlockInfo); -- ok = (yaffs_CheckpointWrite(dev,dev->blockInfo,nBytes) == nBytes); -+ ok = (yaffs_CheckpointWrite(dev, dev->blockInfo, nBytes) == nBytes); - } - - /* Write chunk bits */ -- if(ok) { -+ if (ok) { - nBytes = nBlocks * dev->chunkBitmapStride; -- ok = (yaffs_CheckpointWrite(dev,dev->chunkBits,nBytes) == nBytes); -+ ok = (yaffs_CheckpointWrite(dev, dev->chunkBits, nBytes) == nBytes); - } - return ok ? 1 : 0; - -@@ -4128,25 +4175,25 @@ static int yaffs_ReadCheckpointDevice(ya - - int ok; - -- ok = (yaffs_CheckpointRead(dev,&cp,sizeof(cp)) == sizeof(cp)); -- if(!ok) -+ ok = (yaffs_CheckpointRead(dev, &cp, sizeof(cp)) == sizeof(cp)); -+ if (!ok) - return 0; - -- if(cp.structType != sizeof(cp)) -+ if (cp.structType != sizeof(cp)) - return 0; - - -- yaffs_CheckpointDeviceToDevice(dev,&cp); -+ yaffs_CheckpointDeviceToDevice(dev, &cp); - - nBytes = nBlocks * sizeof(yaffs_BlockInfo); - -- ok = (yaffs_CheckpointRead(dev,dev->blockInfo,nBytes) == nBytes); -+ ok = (yaffs_CheckpointRead(dev, dev->blockInfo, nBytes) == nBytes); - -- if(!ok) -+ if (!ok) - return 0; - nBytes = nBlocks * dev->chunkBitmapStride; - -- ok = (yaffs_CheckpointRead(dev,dev->chunkBits,nBytes) == nBytes); -+ ok = (yaffs_CheckpointRead(dev, dev->chunkBits, nBytes) == nBytes); - - return ok ? 1 : 0; - } -@@ -4157,7 +4204,7 @@ static void yaffs_ObjectToCheckpointObje - - cp->objectId = obj->objectId; - cp->parentId = (obj->parent) ? obj->parent->objectId : 0; -- cp->chunkId = obj->chunkId; -+ cp->hdrChunk = obj->hdrChunk; - cp->variantType = obj->variantType; - cp->deleted = obj->deleted; - cp->softDeleted = obj->softDeleted; -@@ -4168,20 +4215,28 @@ static void yaffs_ObjectToCheckpointObje - cp->serial = obj->serial; - cp->nDataChunks = obj->nDataChunks; - -- if(obj->variantType == YAFFS_OBJECT_TYPE_FILE) -+ if (obj->variantType == YAFFS_OBJECT_TYPE_FILE) - cp->fileSizeOrEquivalentObjectId = obj->variant.fileVariant.fileSize; -- else if(obj->variantType == YAFFS_OBJECT_TYPE_HARDLINK) -+ else if (obj->variantType == YAFFS_OBJECT_TYPE_HARDLINK) - cp->fileSizeOrEquivalentObjectId = obj->variant.hardLinkVariant.equivalentObjectId; - } - --static void yaffs_CheckpointObjectToObject( yaffs_Object *obj,yaffs_CheckpointObject *cp) -+static int yaffs_CheckpointObjectToObject(yaffs_Object *obj, yaffs_CheckpointObject *cp) - { - - yaffs_Object *parent; - -+ if (obj->variantType != cp->variantType) { -+ T(YAFFS_TRACE_ERROR, (TSTR("Checkpoint read object %d type %d " -+ TCONT("chunk %d does not match existing object type %d") -+ TENDSTR), cp->objectId, cp->variantType, cp->hdrChunk, -+ obj->variantType)); -+ return 0; -+ } -+ - obj->objectId = cp->objectId; - -- if(cp->parentId) -+ if (cp->parentId) - parent = yaffs_FindOrCreateObjectByNumber( - obj->myDev, - cp->parentId, -@@ -4189,10 +4244,19 @@ static void yaffs_CheckpointObjectToObje - else - parent = NULL; - -- if(parent) -+ if (parent) { -+ if (parent->variantType != YAFFS_OBJECT_TYPE_DIRECTORY) { -+ T(YAFFS_TRACE_ALWAYS, (TSTR("Checkpoint read object %d parent %d type %d" -+ TCONT(" chunk %d Parent type, %d, not directory") -+ TENDSTR), -+ cp->objectId, cp->parentId, cp->variantType, -+ cp->hdrChunk, parent->variantType)); -+ return 0; -+ } - yaffs_AddObjectToDirectory(parent, obj); -+ } - -- obj->chunkId = cp->chunkId; -+ obj->hdrChunk = cp->hdrChunk; - obj->variantType = cp->variantType; - obj->deleted = cp->deleted; - obj->softDeleted = cp->softDeleted; -@@ -4203,29 +4267,34 @@ static void yaffs_CheckpointObjectToObje - obj->serial = cp->serial; - obj->nDataChunks = cp->nDataChunks; - -- if(obj->variantType == YAFFS_OBJECT_TYPE_FILE) -+ if (obj->variantType == YAFFS_OBJECT_TYPE_FILE) - obj->variant.fileVariant.fileSize = cp->fileSizeOrEquivalentObjectId; -- else if(obj->variantType == YAFFS_OBJECT_TYPE_HARDLINK) -+ else if (obj->variantType == YAFFS_OBJECT_TYPE_HARDLINK) - obj->variant.hardLinkVariant.equivalentObjectId = cp->fileSizeOrEquivalentObjectId; - -- if(obj->objectId >= YAFFS_NOBJECT_BUCKETS) -+ if (obj->hdrChunk > 0) - obj->lazyLoaded = 1; -+ return 1; - } - - - --static int yaffs_CheckpointTnodeWorker(yaffs_Object * in, yaffs_Tnode * tn, -- __u32 level, int chunkOffset) -+static int yaffs_CheckpointTnodeWorker(yaffs_Object *in, yaffs_Tnode *tn, -+ __u32 level, int chunkOffset) - { - int i; - yaffs_Device *dev = in->myDev; - int ok = 1; -- int nTnodeBytes = (dev->tnodeWidth * YAFFS_NTNODES_LEVEL0)/8; -+ int tnodeSize = (dev->tnodeWidth * YAFFS_NTNODES_LEVEL0)/8; -+ -+ if (tnodeSize < sizeof(yaffs_Tnode)) -+ tnodeSize = sizeof(yaffs_Tnode); -+ - - if (tn) { - if (level > 0) { - -- for (i = 0; i < YAFFS_NTNODES_INTERNAL && ok; i++){ -+ for (i = 0; i < YAFFS_NTNODES_INTERNAL && ok; i++) { - if (tn->internal[i]) { - ok = yaffs_CheckpointTnodeWorker(in, - tn->internal[i], -@@ -4235,10 +4304,9 @@ static int yaffs_CheckpointTnodeWorker(y - } - } else if (level == 0) { - __u32 baseOffset = chunkOffset << YAFFS_TNODES_LEVEL0_BITS; -- /* printf("write tnode at %d\n",baseOffset); */ -- ok = (yaffs_CheckpointWrite(dev,&baseOffset,sizeof(baseOffset)) == sizeof(baseOffset)); -- if(ok) -- ok = (yaffs_CheckpointWrite(dev,tn,nTnodeBytes) == nTnodeBytes); -+ ok = (yaffs_CheckpointWrite(dev, &baseOffset, sizeof(baseOffset)) == sizeof(baseOffset)); -+ if (ok) -+ ok = (yaffs_CheckpointWrite(dev, tn, tnodeSize) == tnodeSize); - } - } - -@@ -4251,13 +4319,13 @@ static int yaffs_WriteCheckpointTnodes(y - __u32 endMarker = ~0; - int ok = 1; - -- if(obj->variantType == YAFFS_OBJECT_TYPE_FILE){ -+ if (obj->variantType == YAFFS_OBJECT_TYPE_FILE) { - ok = yaffs_CheckpointTnodeWorker(obj, - obj->variant.fileVariant.top, - obj->variant.fileVariant.topLevel, - 0); -- if(ok) -- ok = (yaffs_CheckpointWrite(obj->myDev,&endMarker,sizeof(endMarker)) == -+ if (ok) -+ ok = (yaffs_CheckpointWrite(obj->myDev, &endMarker, sizeof(endMarker)) == - sizeof(endMarker)); - } - -@@ -4272,38 +4340,38 @@ static int yaffs_ReadCheckpointTnodes(ya - yaffs_FileStructure *fileStructPtr = &obj->variant.fileVariant; - yaffs_Tnode *tn; - int nread = 0; -+ int tnodeSize = (dev->tnodeWidth * YAFFS_NTNODES_LEVEL0)/8; - -- ok = (yaffs_CheckpointRead(dev,&baseChunk,sizeof(baseChunk)) == sizeof(baseChunk)); -+ if (tnodeSize < sizeof(yaffs_Tnode)) -+ tnodeSize = sizeof(yaffs_Tnode); - -- while(ok && (~baseChunk)){ -+ ok = (yaffs_CheckpointRead(dev, &baseChunk, sizeof(baseChunk)) == sizeof(baseChunk)); -+ -+ while (ok && (~baseChunk)) { - nread++; - /* Read level 0 tnode */ - - -- /* printf("read tnode at %d\n",baseChunk); */ - tn = yaffs_GetTnodeRaw(dev); -- if(tn) -- ok = (yaffs_CheckpointRead(dev,tn,(dev->tnodeWidth * YAFFS_NTNODES_LEVEL0)/8) == -- (dev->tnodeWidth * YAFFS_NTNODES_LEVEL0)/8); -+ if (tn) -+ ok = (yaffs_CheckpointRead(dev, tn, tnodeSize) == tnodeSize); - else - ok = 0; - -- if(tn && ok){ -+ if (tn && ok) - ok = yaffs_AddOrFindLevel0Tnode(dev, -- fileStructPtr, -- baseChunk, -- tn) ? 1 : 0; -+ fileStructPtr, -+ baseChunk, -+ tn) ? 1 : 0; - -- } -- -- if(ok) -- ok = (yaffs_CheckpointRead(dev,&baseChunk,sizeof(baseChunk)) == sizeof(baseChunk)); -+ if (ok) -+ ok = (yaffs_CheckpointRead(dev, &baseChunk, sizeof(baseChunk)) == sizeof(baseChunk)); - - } - -- T(YAFFS_TRACE_CHECKPOINT,( -+ T(YAFFS_TRACE_CHECKPOINT, ( - TSTR("Checkpoint read tnodes %d records, last %d. ok %d" TENDSTR), -- nread,baseChunk,ok)); -+ nread, baseChunk, ok)); - - return ok ? 1 : 0; - } -@@ -4315,41 +4383,40 @@ static int yaffs_WriteCheckpointObjects( - yaffs_CheckpointObject cp; - int i; - int ok = 1; -- struct list_head *lh; -+ struct ylist_head *lh; - - - /* Iterate through the objects in each hash entry, - * dumping them to the checkpointing stream. - */ - -- for(i = 0; ok && i < YAFFS_NOBJECT_BUCKETS; i++){ -- list_for_each(lh, &dev->objectBucket[i].list) { -+ for (i = 0; ok && i < YAFFS_NOBJECT_BUCKETS; i++) { -+ ylist_for_each(lh, &dev->objectBucket[i].list) { - if (lh) { -- obj = list_entry(lh, yaffs_Object, hashLink); -+ obj = ylist_entry(lh, yaffs_Object, hashLink); - if (!obj->deferedFree) { -- yaffs_ObjectToCheckpointObject(&cp,obj); -+ yaffs_ObjectToCheckpointObject(&cp, obj); - cp.structType = sizeof(cp); - -- T(YAFFS_TRACE_CHECKPOINT,( -+ T(YAFFS_TRACE_CHECKPOINT, ( - TSTR("Checkpoint write object %d parent %d type %d chunk %d obj addr %x" TENDSTR), -- cp.objectId,cp.parentId,cp.variantType,cp.chunkId,(unsigned) obj)); -+ cp.objectId, cp.parentId, cp.variantType, cp.hdrChunk, (unsigned) obj)); - -- ok = (yaffs_CheckpointWrite(dev,&cp,sizeof(cp)) == sizeof(cp)); -+ ok = (yaffs_CheckpointWrite(dev, &cp, sizeof(cp)) == sizeof(cp)); - -- if(ok && obj->variantType == YAFFS_OBJECT_TYPE_FILE){ -+ if (ok && obj->variantType == YAFFS_OBJECT_TYPE_FILE) - ok = yaffs_WriteCheckpointTnodes(obj); -- } - } - } - } -- } -+ } - -- /* Dump end of list */ -- memset(&cp,0xFF,sizeof(yaffs_CheckpointObject)); -+ /* Dump end of list */ -+ memset(&cp, 0xFF, sizeof(yaffs_CheckpointObject)); - cp.structType = sizeof(cp); - -- if(ok) -- ok = (yaffs_CheckpointWrite(dev,&cp,sizeof(cp)) == sizeof(cp)); -+ if (ok) -+ ok = (yaffs_CheckpointWrite(dev, &cp, sizeof(cp)) == sizeof(cp)); - - return ok ? 1 : 0; - } -@@ -4362,38 +4429,39 @@ static int yaffs_ReadCheckpointObjects(y - int done = 0; - yaffs_Object *hardList = NULL; - -- while(ok && !done) { -- ok = (yaffs_CheckpointRead(dev,&cp,sizeof(cp)) == sizeof(cp)); -- if(cp.structType != sizeof(cp)) { -- T(YAFFS_TRACE_CHECKPOINT,(TSTR("struct size %d instead of %d ok %d"TENDSTR), -- cp.structType,sizeof(cp),ok)); -+ while (ok && !done) { -+ ok = (yaffs_CheckpointRead(dev, &cp, sizeof(cp)) == sizeof(cp)); -+ if (cp.structType != sizeof(cp)) { -+ T(YAFFS_TRACE_CHECKPOINT, (TSTR("struct size %d instead of %d ok %d"TENDSTR), -+ cp.structType, sizeof(cp), ok)); - ok = 0; - } - -- T(YAFFS_TRACE_CHECKPOINT,(TSTR("Checkpoint read object %d parent %d type %d chunk %d " TENDSTR), -- cp.objectId,cp.parentId,cp.variantType,cp.chunkId)); -+ T(YAFFS_TRACE_CHECKPOINT, (TSTR("Checkpoint read object %d parent %d type %d chunk %d " TENDSTR), -+ cp.objectId, cp.parentId, cp.variantType, cp.hdrChunk)); - -- if(ok && cp.objectId == ~0) -+ if (ok && cp.objectId == ~0) - done = 1; -- else if(ok){ -- obj = yaffs_FindOrCreateObjectByNumber(dev,cp.objectId, cp.variantType); -- if(obj) { -- yaffs_CheckpointObjectToObject(obj,&cp); -- if(obj->variantType == YAFFS_OBJECT_TYPE_FILE) { -+ else if (ok) { -+ obj = yaffs_FindOrCreateObjectByNumber(dev, cp.objectId, cp.variantType); -+ if (obj) { -+ ok = yaffs_CheckpointObjectToObject(obj, &cp); -+ if (!ok) -+ break; -+ if (obj->variantType == YAFFS_OBJECT_TYPE_FILE) { - ok = yaffs_ReadCheckpointTnodes(obj); -- } else if(obj->variantType == YAFFS_OBJECT_TYPE_HARDLINK) { -+ } else if (obj->variantType == YAFFS_OBJECT_TYPE_HARDLINK) { - obj->hardLinks.next = -- (struct list_head *) -- hardList; -+ (struct ylist_head *) hardList; - hardList = obj; - } -- -- } -+ } else -+ ok = 0; - } - } - -- if(ok) -- yaffs_HardlinkFixup(dev,hardList); -+ if (ok) -+ yaffs_HardlinkFixup(dev, hardList); - - return ok ? 1 : 0; - } -@@ -4403,11 +4471,11 @@ static int yaffs_WriteCheckpointSum(yaff - __u32 checkpointSum; - int ok; - -- yaffs_GetCheckpointSum(dev,&checkpointSum); -+ yaffs_GetCheckpointSum(dev, &checkpointSum); - -- ok = (yaffs_CheckpointWrite(dev,&checkpointSum,sizeof(checkpointSum)) == sizeof(checkpointSum)); -+ ok = (yaffs_CheckpointWrite(dev, &checkpointSum, sizeof(checkpointSum)) == sizeof(checkpointSum)); - -- if(!ok) -+ if (!ok) - return 0; - - return 1; -@@ -4419,14 +4487,14 @@ static int yaffs_ReadCheckpointSum(yaffs - __u32 checkpointSum1; - int ok; - -- yaffs_GetCheckpointSum(dev,&checkpointSum0); -+ yaffs_GetCheckpointSum(dev, &checkpointSum0); - -- ok = (yaffs_CheckpointRead(dev,&checkpointSum1,sizeof(checkpointSum1)) == sizeof(checkpointSum1)); -+ ok = (yaffs_CheckpointRead(dev, &checkpointSum1, sizeof(checkpointSum1)) == sizeof(checkpointSum1)); - -- if(!ok) -+ if (!ok) - return 0; - -- if(checkpointSum0 != checkpointSum1) -+ if (checkpointSum0 != checkpointSum1) - return 0; - - return 1; -@@ -4435,46 +4503,43 @@ static int yaffs_ReadCheckpointSum(yaffs - - static int yaffs_WriteCheckpointData(yaffs_Device *dev) - { -- - int ok = 1; - -- if(dev->skipCheckpointWrite || !dev->isYaffs2){ -- T(YAFFS_TRACE_CHECKPOINT,(TSTR("skipping checkpoint write" TENDSTR))); -+ if (dev->skipCheckpointWrite || !dev->isYaffs2) { -+ T(YAFFS_TRACE_CHECKPOINT, (TSTR("skipping checkpoint write" TENDSTR))); - ok = 0; - } - -- if(ok) -- ok = yaffs_CheckpointOpen(dev,1); -+ if (ok) -+ ok = yaffs_CheckpointOpen(dev, 1); - -- if(ok){ -- T(YAFFS_TRACE_CHECKPOINT,(TSTR("write checkpoint validity" TENDSTR))); -- ok = yaffs_WriteCheckpointValidityMarker(dev,1); -+ if (ok) { -+ T(YAFFS_TRACE_CHECKPOINT, (TSTR("write checkpoint validity" TENDSTR))); -+ ok = yaffs_WriteCheckpointValidityMarker(dev, 1); - } -- if(ok){ -- T(YAFFS_TRACE_CHECKPOINT,(TSTR("write checkpoint device" TENDSTR))); -+ if (ok) { -+ T(YAFFS_TRACE_CHECKPOINT, (TSTR("write checkpoint device" TENDSTR))); - ok = yaffs_WriteCheckpointDevice(dev); - } -- if(ok){ -- T(YAFFS_TRACE_CHECKPOINT,(TSTR("write checkpoint objects" TENDSTR))); -+ if (ok) { -+ T(YAFFS_TRACE_CHECKPOINT, (TSTR("write checkpoint objects" TENDSTR))); - ok = yaffs_WriteCheckpointObjects(dev); - } -- if(ok){ -- T(YAFFS_TRACE_CHECKPOINT,(TSTR("write checkpoint validity" TENDSTR))); -- ok = yaffs_WriteCheckpointValidityMarker(dev,0); -+ if (ok) { -+ T(YAFFS_TRACE_CHECKPOINT, (TSTR("write checkpoint validity" TENDSTR))); -+ ok = yaffs_WriteCheckpointValidityMarker(dev, 0); - } - -- if(ok){ -+ if (ok) - ok = yaffs_WriteCheckpointSum(dev); -- } -- - -- if(!yaffs_CheckpointClose(dev)) -- ok = 0; -+ if (!yaffs_CheckpointClose(dev)) -+ ok = 0; - -- if(ok) -- dev->isCheckpointed = 1; -- else -- dev->isCheckpointed = 0; -+ if (ok) -+ dev->isCheckpointed = 1; -+ else -+ dev->isCheckpointed = 0; - - return dev->isCheckpointed; - } -@@ -4483,43 +4548,43 @@ static int yaffs_ReadCheckpointData(yaff - { - int ok = 1; - -- if(dev->skipCheckpointRead || !dev->isYaffs2){ -- T(YAFFS_TRACE_CHECKPOINT,(TSTR("skipping checkpoint read" TENDSTR))); -+ if (dev->skipCheckpointRead || !dev->isYaffs2) { -+ T(YAFFS_TRACE_CHECKPOINT, (TSTR("skipping checkpoint read" TENDSTR))); - ok = 0; - } - -- if(ok) -- ok = yaffs_CheckpointOpen(dev,0); /* open for read */ -+ if (ok) -+ ok = yaffs_CheckpointOpen(dev, 0); /* open for read */ - -- if(ok){ -- T(YAFFS_TRACE_CHECKPOINT,(TSTR("read checkpoint validity" TENDSTR))); -- ok = yaffs_ReadCheckpointValidityMarker(dev,1); -+ if (ok) { -+ T(YAFFS_TRACE_CHECKPOINT, (TSTR("read checkpoint validity" TENDSTR))); -+ ok = yaffs_ReadCheckpointValidityMarker(dev, 1); - } -- if(ok){ -- T(YAFFS_TRACE_CHECKPOINT,(TSTR("read checkpoint device" TENDSTR))); -+ if (ok) { -+ T(YAFFS_TRACE_CHECKPOINT, (TSTR("read checkpoint device" TENDSTR))); - ok = yaffs_ReadCheckpointDevice(dev); - } -- if(ok){ -- T(YAFFS_TRACE_CHECKPOINT,(TSTR("read checkpoint objects" TENDSTR))); -+ if (ok) { -+ T(YAFFS_TRACE_CHECKPOINT, (TSTR("read checkpoint objects" TENDSTR))); - ok = yaffs_ReadCheckpointObjects(dev); - } -- if(ok){ -- T(YAFFS_TRACE_CHECKPOINT,(TSTR("read checkpoint validity" TENDSTR))); -- ok = yaffs_ReadCheckpointValidityMarker(dev,0); -+ if (ok) { -+ T(YAFFS_TRACE_CHECKPOINT, (TSTR("read checkpoint validity" TENDSTR))); -+ ok = yaffs_ReadCheckpointValidityMarker(dev, 0); - } - -- if(ok){ -+ if (ok) { - ok = yaffs_ReadCheckpointSum(dev); -- T(YAFFS_TRACE_CHECKPOINT,(TSTR("read checkpoint checksum %d" TENDSTR),ok)); -+ T(YAFFS_TRACE_CHECKPOINT, (TSTR("read checkpoint checksum %d" TENDSTR), ok)); - } - -- if(!yaffs_CheckpointClose(dev)) -+ if (!yaffs_CheckpointClose(dev)) - ok = 0; - -- if(ok) -- dev->isCheckpointed = 1; -- else -- dev->isCheckpointed = 0; -+ if (ok) -+ dev->isCheckpointed = 1; -+ else -+ dev->isCheckpointed = 0; - - return ok ? 1 : 0; - -@@ -4527,11 +4592,11 @@ static int yaffs_ReadCheckpointData(yaff - - static void yaffs_InvalidateCheckpoint(yaffs_Device *dev) - { -- if(dev->isCheckpointed || -- dev->blocksInCheckpoint > 0){ -+ if (dev->isCheckpointed || -+ dev->blocksInCheckpoint > 0) { - dev->isCheckpointed = 0; - yaffs_CheckpointInvalidateStream(dev); -- if(dev->superBlock && dev->markSuperBlockDirty) -+ if (dev->superBlock && dev->markSuperBlockDirty) - dev->markSuperBlockDirty(dev->superBlock); - } - } -@@ -4540,18 +4605,18 @@ static void yaffs_InvalidateCheckpoint(y - int yaffs_CheckpointSave(yaffs_Device *dev) - { - -- T(YAFFS_TRACE_CHECKPOINT,(TSTR("save entry: isCheckpointed %d"TENDSTR),dev->isCheckpointed)); -+ T(YAFFS_TRACE_CHECKPOINT, (TSTR("save entry: isCheckpointed %d"TENDSTR), dev->isCheckpointed)); - - yaffs_VerifyObjects(dev); - yaffs_VerifyBlocks(dev); - yaffs_VerifyFreeChunks(dev); - -- if(!dev->isCheckpointed) { -+ if (!dev->isCheckpointed) { - yaffs_InvalidateCheckpoint(dev); - yaffs_WriteCheckpointData(dev); - } - -- T(YAFFS_TRACE_ALWAYS,(TSTR("save exit: isCheckpointed %d"TENDSTR),dev->isCheckpointed)); -+ T(YAFFS_TRACE_ALWAYS, (TSTR("save exit: isCheckpointed %d"TENDSTR), dev->isCheckpointed)); - - return dev->isCheckpointed; - } -@@ -4559,17 +4624,17 @@ int yaffs_CheckpointSave(yaffs_Device *d - int yaffs_CheckpointRestore(yaffs_Device *dev) - { - int retval; -- T(YAFFS_TRACE_CHECKPOINT,(TSTR("restore entry: isCheckpointed %d"TENDSTR),dev->isCheckpointed)); -+ T(YAFFS_TRACE_CHECKPOINT, (TSTR("restore entry: isCheckpointed %d"TENDSTR), dev->isCheckpointed)); - - retval = yaffs_ReadCheckpointData(dev); - -- if(dev->isCheckpointed){ -+ if (dev->isCheckpointed) { - yaffs_VerifyObjects(dev); - yaffs_VerifyBlocks(dev); - yaffs_VerifyFreeChunks(dev); - } - -- T(YAFFS_TRACE_CHECKPOINT,(TSTR("restore exit: isCheckpointed %d"TENDSTR),dev->isCheckpointed)); -+ T(YAFFS_TRACE_CHECKPOINT, (TSTR("restore exit: isCheckpointed %d"TENDSTR), dev->isCheckpointed)); - - return retval; - } -@@ -4584,12 +4649,12 @@ int yaffs_CheckpointRestore(yaffs_Device - * Curve-balls: the first chunk might also be the last chunk. - */ - --int yaffs_ReadDataFromFile(yaffs_Object * in, __u8 * buffer, loff_t offset, -- int nBytes) -+int yaffs_ReadDataFromFile(yaffs_Object *in, __u8 *buffer, loff_t offset, -+ int nBytes) - { - - int chunk; -- int start; -+ __u32 start; - int nToCopy; - int n = nBytes; - int nDone = 0; -@@ -4600,27 +4665,26 @@ int yaffs_ReadDataFromFile(yaffs_Object - dev = in->myDev; - - while (n > 0) { -- //chunk = offset / dev->nDataBytesPerChunk + 1; -- //start = offset % dev->nDataBytesPerChunk; -- yaffs_AddrToChunk(dev,offset,&chunk,&start); -+ /* chunk = offset / dev->nDataBytesPerChunk + 1; */ -+ /* start = offset % dev->nDataBytesPerChunk; */ -+ yaffs_AddrToChunk(dev, offset, &chunk, &start); - chunk++; - - /* OK now check for the curveball where the start and end are in - * the same chunk. - */ -- if ((start + n) < dev->nDataBytesPerChunk) { -+ if ((start + n) < dev->nDataBytesPerChunk) - nToCopy = n; -- } else { -+ else - nToCopy = dev->nDataBytesPerChunk - start; -- } - - cache = yaffs_FindChunkCache(in, chunk); - - /* If the chunk is already in the cache or it is less than a whole chunk -- * then use the cache (if there is caching) -+ * or we're using inband tags then use the cache (if there is caching) - * else bypass the cache. - */ -- if (cache || nToCopy != dev->nDataBytesPerChunk) { -+ if (cache || nToCopy != dev->nDataBytesPerChunk || dev->inbandTags) { - if (dev->nShortOpCaches > 0) { - - /* If we can't find the data in the cache, then load it up. */ -@@ -4641,14 +4705,9 @@ int yaffs_ReadDataFromFile(yaffs_Object - - cache->locked = 1; - --#ifdef CONFIG_YAFFS_WINCE -- yfsd_UnlockYAFFS(TRUE); --#endif -+ - memcpy(buffer, &cache->data[start], nToCopy); - --#ifdef CONFIG_YAFFS_WINCE -- yfsd_LockYAFFS(TRUE); --#endif - cache->locked = 0; - } else { - /* Read into the local buffer then copy..*/ -@@ -4657,41 +4716,19 @@ int yaffs_ReadDataFromFile(yaffs_Object - yaffs_GetTempBuffer(dev, __LINE__); - yaffs_ReadChunkDataFromObject(in, chunk, - localBuffer); --#ifdef CONFIG_YAFFS_WINCE -- yfsd_UnlockYAFFS(TRUE); --#endif -+ - memcpy(buffer, &localBuffer[start], nToCopy); - --#ifdef CONFIG_YAFFS_WINCE -- yfsd_LockYAFFS(TRUE); --#endif -+ - yaffs_ReleaseTempBuffer(dev, localBuffer, - __LINE__); - } - - } else { --#ifdef CONFIG_YAFFS_WINCE -- __u8 *localBuffer = yaffs_GetTempBuffer(dev, __LINE__); -- -- /* Under WinCE can't do direct transfer. Need to use a local buffer. -- * This is because we otherwise screw up WinCE's memory mapper -- */ -- yaffs_ReadChunkDataFromObject(in, chunk, localBuffer); -- --#ifdef CONFIG_YAFFS_WINCE -- yfsd_UnlockYAFFS(TRUE); --#endif -- memcpy(buffer, localBuffer, dev->nDataBytesPerChunk); - --#ifdef CONFIG_YAFFS_WINCE -- yfsd_LockYAFFS(TRUE); -- yaffs_ReleaseTempBuffer(dev, localBuffer, __LINE__); --#endif -- --#else - /* A full chunk. Read directly into the supplied buffer. */ - yaffs_ReadChunkDataFromObject(in, chunk, buffer); --#endif -+ - } - - n -= nToCopy; -@@ -4704,28 +4741,37 @@ int yaffs_ReadDataFromFile(yaffs_Object - return nDone; - } - --int yaffs_WriteDataToFile(yaffs_Object * in, const __u8 * buffer, loff_t offset, -- int nBytes, int writeThrough) -+int yaffs_WriteDataToFile(yaffs_Object *in, const __u8 *buffer, loff_t offset, -+ int nBytes, int writeThrough) - { - - int chunk; -- int start; -+ __u32 start; - int nToCopy; - int n = nBytes; - int nDone = 0; - int nToWriteBack; - int startOfWrite = offset; - int chunkWritten = 0; -- int nBytesRead; -+ __u32 nBytesRead; -+ __u32 chunkStart; - - yaffs_Device *dev; - - dev = in->myDev; - - while (n > 0 && chunkWritten >= 0) { -- //chunk = offset / dev->nDataBytesPerChunk + 1; -- //start = offset % dev->nDataBytesPerChunk; -- yaffs_AddrToChunk(dev,offset,&chunk,&start); -+ /* chunk = offset / dev->nDataBytesPerChunk + 1; */ -+ /* start = offset % dev->nDataBytesPerChunk; */ -+ yaffs_AddrToChunk(dev, offset, &chunk, &start); -+ -+ if (chunk * dev->nDataBytesPerChunk + start != offset || -+ start >= dev->nDataBytesPerChunk) { -+ T(YAFFS_TRACE_ERROR, ( -+ TSTR("AddrToChunk of offset %d gives chunk %d start %d" -+ TENDSTR), -+ (int)offset, chunk, start)); -+ } - chunk++; - - /* OK now check for the curveball where the start and end are in -@@ -4740,25 +4786,32 @@ int yaffs_WriteDataToFile(yaffs_Object * - * we need to write back as much as was there before. - */ - -- nBytesRead = -- in->variant.fileVariant.fileSize - -- ((chunk - 1) * dev->nDataBytesPerChunk); -+ chunkStart = ((chunk - 1) * dev->nDataBytesPerChunk); -+ -+ if (chunkStart > in->variant.fileVariant.fileSize) -+ nBytesRead = 0; /* Past end of file */ -+ else -+ nBytesRead = in->variant.fileVariant.fileSize - chunkStart; - -- if (nBytesRead > dev->nDataBytesPerChunk) { -+ if (nBytesRead > dev->nDataBytesPerChunk) - nBytesRead = dev->nDataBytesPerChunk; -- } - - nToWriteBack = - (nBytesRead > - (start + n)) ? nBytesRead : (start + n); - -+ if (nToWriteBack < 0 || nToWriteBack > dev->nDataBytesPerChunk) -+ YBUG(); -+ - } else { - nToCopy = dev->nDataBytesPerChunk - start; - nToWriteBack = dev->nDataBytesPerChunk; - } - -- if (nToCopy != dev->nDataBytesPerChunk) { -- /* An incomplete start or end chunk (or maybe both start and end chunk) */ -+ if (nToCopy != dev->nDataBytesPerChunk || dev->inbandTags) { -+ /* An incomplete start or end chunk (or maybe both start and end chunk), -+ * or we're using inband tags, so we want to use the cache buffers. -+ */ - if (dev->nShortOpCaches > 0) { - yaffs_ChunkCache *cache; - /* If we can't find the data in the cache, then load the cache */ -@@ -4775,10 +4828,9 @@ int yaffs_WriteDataToFile(yaffs_Object * - yaffs_ReadChunkDataFromObject(in, chunk, - cache-> - data); -- } -- else if(cache && -- !cache->dirty && -- !yaffs_CheckSpaceForAllocation(in->myDev)){ -+ } else if (cache && -+ !cache->dirty && -+ !yaffs_CheckSpaceForAllocation(in->myDev)) { - /* Drop the cache if it was a read cache item and - * no space check has been made for it. - */ -@@ -4788,16 +4840,12 @@ int yaffs_WriteDataToFile(yaffs_Object * - if (cache) { - yaffs_UseChunkCache(dev, cache, 1); - cache->locked = 1; --#ifdef CONFIG_YAFFS_WINCE -- yfsd_UnlockYAFFS(TRUE); --#endif -+ - - memcpy(&cache->data[start], buffer, - nToCopy); - --#ifdef CONFIG_YAFFS_WINCE -- yfsd_LockYAFFS(TRUE); --#endif -+ - cache->locked = 0; - cache->nBytes = nToWriteBack; - -@@ -4825,15 +4873,10 @@ int yaffs_WriteDataToFile(yaffs_Object * - yaffs_ReadChunkDataFromObject(in, chunk, - localBuffer); - --#ifdef CONFIG_YAFFS_WINCE -- yfsd_UnlockYAFFS(TRUE); --#endif -+ - - memcpy(&localBuffer[start], buffer, nToCopy); - --#ifdef CONFIG_YAFFS_WINCE -- yfsd_LockYAFFS(TRUE); --#endif - chunkWritten = - yaffs_WriteChunkDataToObject(in, chunk, - localBuffer, -@@ -4846,31 +4889,15 @@ int yaffs_WriteDataToFile(yaffs_Object * - } - - } else { -- --#ifdef CONFIG_YAFFS_WINCE -- /* Under WinCE can't do direct transfer. Need to use a local buffer. -- * This is because we otherwise screw up WinCE's memory mapper -- */ -- __u8 *localBuffer = yaffs_GetTempBuffer(dev, __LINE__); --#ifdef CONFIG_YAFFS_WINCE -- yfsd_UnlockYAFFS(TRUE); --#endif -- memcpy(localBuffer, buffer, dev->nDataBytesPerChunk); --#ifdef CONFIG_YAFFS_WINCE -- yfsd_LockYAFFS(TRUE); --#endif -- chunkWritten = -- yaffs_WriteChunkDataToObject(in, chunk, localBuffer, -- dev->nDataBytesPerChunk, -- 0); -- yaffs_ReleaseTempBuffer(dev, localBuffer, __LINE__); --#else - /* A full chunk. Write directly from the supplied buffer. */ -+ -+ -+ - chunkWritten = - yaffs_WriteChunkDataToObject(in, chunk, buffer, - dev->nDataBytesPerChunk, - 0); --#endif -+ - /* Since we've overwritten the cached data, we better invalidate it. */ - yaffs_InvalidateChunkCache(in, chunk); - } -@@ -4886,9 +4913,8 @@ int yaffs_WriteDataToFile(yaffs_Object * - - /* Update file object */ - -- if ((startOfWrite + nDone) > in->variant.fileVariant.fileSize) { -+ if ((startOfWrite + nDone) > in->variant.fileVariant.fileSize) - in->variant.fileVariant.fileSize = (startOfWrite + nDone); -- } - - in->dirty = 1; - -@@ -4898,7 +4924,7 @@ int yaffs_WriteDataToFile(yaffs_Object * - - /* ---------------------- File resizing stuff ------------------ */ - --static void yaffs_PruneResizedChunks(yaffs_Object * in, int newSize) -+static void yaffs_PruneResizedChunks(yaffs_Object *in, int newSize) - { - - yaffs_Device *dev = in->myDev; -@@ -4939,11 +4965,11 @@ static void yaffs_PruneResizedChunks(yaf - - } - --int yaffs_ResizeFile(yaffs_Object * in, loff_t newSize) -+int yaffs_ResizeFile(yaffs_Object *in, loff_t newSize) - { - - int oldFileSize = in->variant.fileVariant.fileSize; -- int newSizeOfPartialChunk; -+ __u32 newSizeOfPartialChunk; - int newFullChunks; - - yaffs_Device *dev = in->myDev; -@@ -4955,13 +4981,11 @@ int yaffs_ResizeFile(yaffs_Object * in, - - yaffs_CheckGarbageCollection(dev); - -- if (in->variantType != YAFFS_OBJECT_TYPE_FILE) { -- return yaffs_GetFileSize(in); -- } -+ if (in->variantType != YAFFS_OBJECT_TYPE_FILE) -+ return YAFFS_FAIL; - -- if (newSize == oldFileSize) { -- return oldFileSize; -- } -+ if (newSize == oldFileSize) -+ return YAFFS_OK; - - if (newSize < oldFileSize) { - -@@ -4994,21 +5018,20 @@ int yaffs_ResizeFile(yaffs_Object * in, - } - - -- - /* Write a new object header. - * show we've shrunk the file, if need be - * Do this only if the file is not in the deleted directories. - */ -- if (in->parent->objectId != YAFFS_OBJECTID_UNLINKED && -- in->parent->objectId != YAFFS_OBJECTID_DELETED) { -+ if (in->parent && -+ in->parent->objectId != YAFFS_OBJECTID_UNLINKED && -+ in->parent->objectId != YAFFS_OBJECTID_DELETED) - yaffs_UpdateObjectHeader(in, NULL, 0, - (newSize < oldFileSize) ? 1 : 0, 0); -- } - -- return newSize; -+ return YAFFS_OK; - } - --loff_t yaffs_GetFileSize(yaffs_Object * obj) -+loff_t yaffs_GetFileSize(yaffs_Object *obj) - { - obj = yaffs_GetEquivalentObject(obj); - -@@ -5024,7 +5047,7 @@ loff_t yaffs_GetFileSize(yaffs_Object * - - - --int yaffs_FlushFile(yaffs_Object * in, int updateTime) -+int yaffs_FlushFile(yaffs_Object *in, int updateTime) - { - int retVal; - if (in->dirty) { -@@ -5039,9 +5062,8 @@ int yaffs_FlushFile(yaffs_Object * in, i - #endif - } - -- retVal = -- (yaffs_UpdateObjectHeader(in, NULL, 0, 0, 0) >= -- 0) ? YAFFS_OK : YAFFS_FAIL; -+ retVal = (yaffs_UpdateObjectHeader(in, NULL, 0, 0, 0) >= -+ 0) ? YAFFS_OK : YAFFS_FAIL; - } else { - retVal = YAFFS_OK; - } -@@ -5050,7 +5072,7 @@ int yaffs_FlushFile(yaffs_Object * in, i - - } - --static int yaffs_DoGenericObjectDeletion(yaffs_Object * in) -+static int yaffs_DoGenericObjectDeletion(yaffs_Object *in) - { - - /* First off, invalidate the file's data in the cache, without flushing. */ -@@ -5058,13 +5080,13 @@ static int yaffs_DoGenericObjectDeletion - - if (in->myDev->isYaffs2 && (in->parent != in->myDev->deletedDir)) { - /* Move to the unlinked directory so we have a record that it was deleted. */ -- yaffs_ChangeObjectName(in, in->myDev->deletedDir,"deleted", 0, 0); -+ yaffs_ChangeObjectName(in, in->myDev->deletedDir, _Y("deleted"), 0, 0); - - } - - yaffs_RemoveObjectFromDirectory(in); -- yaffs_DeleteChunk(in->myDev, in->chunkId, 1, __LINE__); -- in->chunkId = -1; -+ yaffs_DeleteChunk(in->myDev, in->hdrChunk, 1, __LINE__); -+ in->hdrChunk = 0; - - yaffs_FreeObject(in); - return YAFFS_OK; -@@ -5075,62 +5097,63 @@ static int yaffs_DoGenericObjectDeletion - * and the inode associated with the file. - * It does not delete the links associated with the file. - */ --static int yaffs_UnlinkFile(yaffs_Object * in) -+static int yaffs_UnlinkFileIfNeeded(yaffs_Object *in) - { - - int retVal; - int immediateDeletion = 0; - -- if (1) { - #ifdef __KERNEL__ -- if (!in->myInode) { -- immediateDeletion = 1; -- -- } -+ if (!in->myInode) -+ immediateDeletion = 1; - #else -- if (in->inUse <= 0) { -- immediateDeletion = 1; -- -- } -+ if (in->inUse <= 0) -+ immediateDeletion = 1; - #endif -- if (immediateDeletion) { -- retVal = -- yaffs_ChangeObjectName(in, in->myDev->deletedDir, -- "deleted", 0, 0); -- T(YAFFS_TRACE_TRACING, -- (TSTR("yaffs: immediate deletion of file %d" TENDSTR), -- in->objectId)); -- in->deleted = 1; -- in->myDev->nDeletedFiles++; -- if (0 && in->myDev->isYaffs2) { -- yaffs_ResizeFile(in, 0); -- } -- yaffs_SoftDeleteFile(in); -- } else { -- retVal = -- yaffs_ChangeObjectName(in, in->myDev->unlinkedDir, -- "unlinked", 0, 0); -- } - -+ if (immediateDeletion) { -+ retVal = -+ yaffs_ChangeObjectName(in, in->myDev->deletedDir, -+ _Y("deleted"), 0, 0); -+ T(YAFFS_TRACE_TRACING, -+ (TSTR("yaffs: immediate deletion of file %d" TENDSTR), -+ in->objectId)); -+ in->deleted = 1; -+ in->myDev->nDeletedFiles++; -+ if (1 || in->myDev->isYaffs2) -+ yaffs_ResizeFile(in, 0); -+ yaffs_SoftDeleteFile(in); -+ } else { -+ retVal = -+ yaffs_ChangeObjectName(in, in->myDev->unlinkedDir, -+ _Y("unlinked"), 0, 0); - } -+ -+ - return retVal; - } - --int yaffs_DeleteFile(yaffs_Object * in) -+int yaffs_DeleteFile(yaffs_Object *in) - { - int retVal = YAFFS_OK; -+ int deleted = in->deleted; -+ -+ yaffs_ResizeFile(in, 0); - - if (in->nDataChunks > 0) { -- /* Use soft deletion if there is data in the file */ -- if (!in->unlinked) { -- retVal = yaffs_UnlinkFile(in); -- } -+ /* Use soft deletion if there is data in the file. -+ * That won't be the case if it has been resized to zero. -+ */ -+ if (!in->unlinked) -+ retVal = yaffs_UnlinkFileIfNeeded(in); -+ - if (retVal == YAFFS_OK && in->unlinked && !in->deleted) { - in->deleted = 1; -+ deleted = 1; - in->myDev->nDeletedFiles++; - yaffs_SoftDeleteFile(in); - } -- return in->deleted ? YAFFS_OK : YAFFS_FAIL; -+ return deleted ? YAFFS_OK : YAFFS_FAIL; - } else { - /* The file has no data chunks so we toss it immediately */ - yaffs_FreeTnode(in->myDev, in->variant.fileVariant.top); -@@ -5141,62 +5164,75 @@ int yaffs_DeleteFile(yaffs_Object * in) - } - } - --static int yaffs_DeleteDirectory(yaffs_Object * in) -+static int yaffs_DeleteDirectory(yaffs_Object *in) - { - /* First check that the directory is empty. */ -- if (list_empty(&in->variant.directoryVariant.children)) { -+ if (ylist_empty(&in->variant.directoryVariant.children)) - return yaffs_DoGenericObjectDeletion(in); -- } - - return YAFFS_FAIL; - - } - --static int yaffs_DeleteSymLink(yaffs_Object * in) -+static int yaffs_DeleteSymLink(yaffs_Object *in) - { - YFREE(in->variant.symLinkVariant.alias); - - return yaffs_DoGenericObjectDeletion(in); - } - --static int yaffs_DeleteHardLink(yaffs_Object * in) -+static int yaffs_DeleteHardLink(yaffs_Object *in) - { - /* remove this hardlink from the list assocaited with the equivalent - * object - */ -- list_del(&in->hardLinks); -+ ylist_del_init(&in->hardLinks); - return yaffs_DoGenericObjectDeletion(in); - } - --static void yaffs_DestroyObject(yaffs_Object * obj) -+int yaffs_DeleteObject(yaffs_Object *obj) - { -+int retVal = -1; - switch (obj->variantType) { - case YAFFS_OBJECT_TYPE_FILE: -- yaffs_DeleteFile(obj); -+ retVal = yaffs_DeleteFile(obj); - break; - case YAFFS_OBJECT_TYPE_DIRECTORY: -- yaffs_DeleteDirectory(obj); -+ return yaffs_DeleteDirectory(obj); - break; - case YAFFS_OBJECT_TYPE_SYMLINK: -- yaffs_DeleteSymLink(obj); -+ retVal = yaffs_DeleteSymLink(obj); - break; - case YAFFS_OBJECT_TYPE_HARDLINK: -- yaffs_DeleteHardLink(obj); -+ retVal = yaffs_DeleteHardLink(obj); - break; - case YAFFS_OBJECT_TYPE_SPECIAL: -- yaffs_DoGenericObjectDeletion(obj); -+ retVal = yaffs_DoGenericObjectDeletion(obj); - break; - case YAFFS_OBJECT_TYPE_UNKNOWN: -+ retVal = 0; - break; /* should not happen. */ - } -+ -+ return retVal; - } - --static int yaffs_UnlinkWorker(yaffs_Object * obj) -+static int yaffs_UnlinkWorker(yaffs_Object *obj) - { - -+ int immediateDeletion = 0; -+ -+#ifdef __KERNEL__ -+ if (!obj->myInode) -+ immediateDeletion = 1; -+#else -+ if (obj->inUse <= 0) -+ immediateDeletion = 1; -+#endif -+ - if (obj->variantType == YAFFS_OBJECT_TYPE_HARDLINK) { - return yaffs_DeleteHardLink(obj); -- } else if (!list_empty(&obj->hardLinks)) { -+ } else if (!ylist_empty(&obj->hardLinks)) { - /* Curve ball: We're unlinking an object that has a hardlink. - * - * This problem arises because we are not strictly following -@@ -5215,24 +5251,24 @@ static int yaffs_UnlinkWorker(yaffs_Obje - int retVal; - YCHAR name[YAFFS_MAX_NAME_LENGTH + 1]; - -- hl = list_entry(obj->hardLinks.next, yaffs_Object, hardLinks); -+ hl = ylist_entry(obj->hardLinks.next, yaffs_Object, hardLinks); - -- list_del_init(&hl->hardLinks); -- list_del_init(&hl->siblings); -+ ylist_del_init(&hl->hardLinks); -+ ylist_del_init(&hl->siblings); - - yaffs_GetObjectName(hl, name, YAFFS_MAX_NAME_LENGTH + 1); - - retVal = yaffs_ChangeObjectName(obj, hl->parent, name, 0, 0); - -- if (retVal == YAFFS_OK) { -+ if (retVal == YAFFS_OK) - retVal = yaffs_DoGenericObjectDeletion(hl); -- } -+ - return retVal; - -- } else { -+ } else if (immediateDeletion) { - switch (obj->variantType) { - case YAFFS_OBJECT_TYPE_FILE: -- return yaffs_UnlinkFile(obj); -+ return yaffs_DeleteFile(obj); - break; - case YAFFS_OBJECT_TYPE_DIRECTORY: - return yaffs_DeleteDirectory(obj); -@@ -5248,21 +5284,22 @@ static int yaffs_UnlinkWorker(yaffs_Obje - default: - return YAFFS_FAIL; - } -- } -+ } else -+ return yaffs_ChangeObjectName(obj, obj->myDev->unlinkedDir, -+ _Y("unlinked"), 0, 0); - } - - --static int yaffs_UnlinkObject( yaffs_Object *obj) -+static int yaffs_UnlinkObject(yaffs_Object *obj) - { - -- if (obj && obj->unlinkAllowed) { -+ if (obj && obj->unlinkAllowed) - return yaffs_UnlinkWorker(obj); -- } - - return YAFFS_FAIL; - - } --int yaffs_Unlink(yaffs_Object * dir, const YCHAR * name) -+int yaffs_Unlink(yaffs_Object *dir, const YCHAR *name) - { - yaffs_Object *obj; - -@@ -5272,8 +5309,8 @@ int yaffs_Unlink(yaffs_Object * dir, con - - /*----------------------- Initialisation Scanning ---------------------- */ - --static void yaffs_HandleShadowedObject(yaffs_Device * dev, int objId, -- int backwardScanning) -+static void yaffs_HandleShadowedObject(yaffs_Device *dev, int objId, -+ int backwardScanning) - { - yaffs_Object *obj; - -@@ -5286,9 +5323,8 @@ static void yaffs_HandleShadowedObject(y - /* Handle YAFFS2 case (backward scanning) - * If the shadowed object exists then ignore. - */ -- if (yaffs_FindObjectByNumber(dev, objId)) { -+ if (yaffs_FindObjectByNumber(dev, objId)) - return; -- } - } - - /* Let's create it (if it does not exist) assuming it is a file so that it can do shrinking etc. -@@ -5297,6 +5333,8 @@ static void yaffs_HandleShadowedObject(y - obj = - yaffs_FindOrCreateObjectByNumber(dev, objId, - YAFFS_OBJECT_TYPE_FILE); -+ if (!obj) -+ return; - yaffs_AddObjectToDirectory(dev->unlinkedDir, obj); - obj->variant.fileVariant.shrinkSize = 0; - obj->valid = 1; /* So that we don't read any other info for this file */ -@@ -5325,44 +5363,77 @@ static void yaffs_HardlinkFixup(yaffs_De - if (in) { - /* Add the hardlink pointers */ - hl->variant.hardLinkVariant.equivalentObject = in; -- list_add(&hl->hardLinks, &in->hardLinks); -+ ylist_add(&hl->hardLinks, &in->hardLinks); - } else { - /* Todo Need to report/handle this better. - * Got a problem... hardlink to a non-existant object - */ - hl->variant.hardLinkVariant.equivalentObject = NULL; -- INIT_LIST_HEAD(&hl->hardLinks); -+ YINIT_LIST_HEAD(&hl->hardLinks); - - } -- - } -+} -+ -+ - -+ -+ -+static int ybicmp(const void *a, const void *b) -+{ -+ register int aseq = ((yaffs_BlockIndex *)a)->seq; -+ register int bseq = ((yaffs_BlockIndex *)b)->seq; -+ register int ablock = ((yaffs_BlockIndex *)a)->block; -+ register int bblock = ((yaffs_BlockIndex *)b)->block; -+ if (aseq == bseq) -+ return ablock - bblock; -+ else -+ return aseq - bseq; - } - - -+struct yaffs_ShadowFixerStruct { -+ int objectId; -+ int shadowedId; -+ struct yaffs_ShadowFixerStruct *next; -+}; -+ - -+static void yaffs_StripDeletedObjects(yaffs_Device *dev) -+{ -+ /* -+ * Sort out state of unlinked and deleted objects after scanning. -+ */ -+ struct ylist_head *i; -+ struct ylist_head *n; -+ yaffs_Object *l; - -+ /* Soft delete all the unlinked files */ -+ ylist_for_each_safe(i, n, -+ &dev->unlinkedDir->variant.directoryVariant.children) { -+ if (i) { -+ l = ylist_entry(i, yaffs_Object, siblings); -+ yaffs_DeleteObject(l); -+ } -+ } - --static int ybicmp(const void *a, const void *b){ -- register int aseq = ((yaffs_BlockIndex *)a)->seq; -- register int bseq = ((yaffs_BlockIndex *)b)->seq; -- register int ablock = ((yaffs_BlockIndex *)a)->block; -- register int bblock = ((yaffs_BlockIndex *)b)->block; -- if( aseq == bseq ) -- return ablock - bblock; -- else -- return aseq - bseq; -+ ylist_for_each_safe(i, n, -+ &dev->deletedDir->variant.directoryVariant.children) { -+ if (i) { -+ l = ylist_entry(i, yaffs_Object, siblings); -+ yaffs_DeleteObject(l); -+ } -+ } - - } - --static int yaffs_Scan(yaffs_Device * dev) -+static int yaffs_Scan(yaffs_Device *dev) - { - yaffs_ExtendedTags tags; - int blk; - int blockIterator; - int startIterator; - int endIterator; -- int nBlocksToScan = 0; - int result; - - int chunk; -@@ -5371,26 +5442,19 @@ static int yaffs_Scan(yaffs_Device * dev - yaffs_BlockState state; - yaffs_Object *hardList = NULL; - yaffs_BlockInfo *bi; -- int sequenceNumber; -+ __u32 sequenceNumber; - yaffs_ObjectHeader *oh; - yaffs_Object *in; - yaffs_Object *parent; -- int nBlocks = dev->internalEndBlock - dev->internalStartBlock + 1; - - int alloc_failed = 0; - -+ struct yaffs_ShadowFixerStruct *shadowFixerList = NULL; -+ - - __u8 *chunkData; - -- yaffs_BlockIndex *blockIndex = NULL; - -- if (dev->isYaffs2) { -- T(YAFFS_TRACE_SCAN, -- (TSTR("yaffs_Scan is not for YAFFS2!" TENDSTR))); -- return YAFFS_FAIL; -- } -- -- //TODO Throw all the yaffs2 stuuf out of yaffs_Scan since it is only for yaffs1 format. - - T(YAFFS_TRACE_SCAN, - (TSTR("yaffs_Scan starts intstartblk %d intendblk %d..." TENDSTR), -@@ -5400,12 +5464,6 @@ static int yaffs_Scan(yaffs_Device * dev - - dev->sequenceNumber = YAFFS_LOWEST_SEQUENCE_NUMBER; - -- if (dev->isYaffs2) { -- blockIndex = YMALLOC(nBlocks * sizeof(yaffs_BlockIndex)); -- if(!blockIndex) -- return YAFFS_FAIL; -- } -- - /* Scan all the blocks to determine their state */ - for (blk = dev->internalStartBlock; blk <= dev->internalEndBlock; blk++) { - bi = yaffs_GetBlockInfo(dev, blk); -@@ -5418,6 +5476,9 @@ static int yaffs_Scan(yaffs_Device * dev - bi->blockState = state; - bi->sequenceNumber = sequenceNumber; - -+ if (bi->sequenceNumber == YAFFS_SEQUENCE_BAD_BLOCK) -+ bi->blockState = state = YAFFS_BLOCK_STATE_DEAD; -+ - T(YAFFS_TRACE_SCAN_DEBUG, - (TSTR("Block scanning block %d state %d seq %d" TENDSTR), blk, - state, sequenceNumber)); -@@ -5430,70 +5491,21 @@ static int yaffs_Scan(yaffs_Device * dev - (TSTR("Block empty " TENDSTR))); - dev->nErasedBlocks++; - dev->nFreeChunks += dev->nChunksPerBlock; -- } else if (state == YAFFS_BLOCK_STATE_NEEDS_SCANNING) { -- -- /* Determine the highest sequence number */ -- if (dev->isYaffs2 && -- sequenceNumber >= YAFFS_LOWEST_SEQUENCE_NUMBER && -- sequenceNumber < YAFFS_HIGHEST_SEQUENCE_NUMBER) { -- -- blockIndex[nBlocksToScan].seq = sequenceNumber; -- blockIndex[nBlocksToScan].block = blk; -- -- nBlocksToScan++; -- -- if (sequenceNumber >= dev->sequenceNumber) { -- dev->sequenceNumber = sequenceNumber; -- } -- } else if (dev->isYaffs2) { -- /* TODO: Nasty sequence number! */ -- T(YAFFS_TRACE_SCAN, -- (TSTR -- ("Block scanning block %d has bad sequence number %d" -- TENDSTR), blk, sequenceNumber)); -- -- } - } - } - -- /* Sort the blocks -- * Dungy old bubble sort for now... -- */ -- if (dev->isYaffs2) { -- yaffs_BlockIndex temp; -- int i; -- int j; -- -- for (i = 0; i < nBlocksToScan; i++) -- for (j = i + 1; j < nBlocksToScan; j++) -- if (blockIndex[i].seq > blockIndex[j].seq) { -- temp = blockIndex[j]; -- blockIndex[j] = blockIndex[i]; -- blockIndex[i] = temp; -- } -- } -- -- /* Now scan the blocks looking at the data. */ -- if (dev->isYaffs2) { -- startIterator = 0; -- endIterator = nBlocksToScan - 1; -- T(YAFFS_TRACE_SCAN_DEBUG, -- (TSTR("%d blocks to be scanned" TENDSTR), nBlocksToScan)); -- } else { -- startIterator = dev->internalStartBlock; -- endIterator = dev->internalEndBlock; -- } -+ startIterator = dev->internalStartBlock; -+ endIterator = dev->internalEndBlock; - - /* For each block.... */ - for (blockIterator = startIterator; !alloc_failed && blockIterator <= endIterator; - blockIterator++) { - -- if (dev->isYaffs2) { -- /* get the block to scan in the correct order */ -- blk = blockIndex[blockIterator].block; -- } else { -- blk = blockIterator; -- } -+ YYIELD(); -+ -+ YYIELD(); -+ -+ blk = blockIterator; - - bi = yaffs_GetBlockInfo(dev, blk); - state = bi->blockState; -@@ -5511,7 +5523,7 @@ static int yaffs_Scan(yaffs_Device * dev - - /* Let's have a good look at this chunk... */ - -- if (!dev->isYaffs2 && tags.chunkDeleted) { -+ if (tags.eccResult == YAFFS_ECC_RESULT_UNFIXED || tags.chunkDeleted) { - /* YAFFS1 only... - * A deleted chunk - */ -@@ -5540,18 +5552,6 @@ static int yaffs_Scan(yaffs_Device * dev - dev->allocationBlockFinder = blk; - /* Set it to here to encourage the allocator to go forth from here. */ - -- /* Yaffs2 sanity check: -- * This should be the one with the highest sequence number -- */ -- if (dev->isYaffs2 -- && (dev->sequenceNumber != -- bi->sequenceNumber)) { -- T(YAFFS_TRACE_ALWAYS, -- (TSTR -- ("yaffs: Allocation block %d was not highest sequence id:" -- " block seq = %d, dev seq = %d" -- TENDSTR), blk,bi->sequenceNumber,dev->sequenceNumber)); -- } - } - - dev->nFreeChunks += (dev->nChunksPerBlock - c); -@@ -5570,11 +5570,11 @@ static int yaffs_Scan(yaffs_Device * dev - * the same chunkId). - */ - -- if(!in) -+ if (!in) - alloc_failed = 1; - -- if(in){ -- if(!yaffs_PutChunkIntoFile(in, tags.chunkId, chunk,1)) -+ if (in) { -+ if (!yaffs_PutChunkIntoFile(in, tags.chunkId, chunk, 1)) - alloc_failed = 1; - } - -@@ -5617,7 +5617,7 @@ static int yaffs_Scan(yaffs_Device * dev - * deleted, and worse still it has changed type. Delete the old object. - */ - -- yaffs_DestroyObject(in); -+ yaffs_DeleteObject(in); - - in = 0; - } -@@ -5627,14 +5627,20 @@ static int yaffs_Scan(yaffs_Device * dev - objectId, - oh->type); - -- if(!in) -+ if (!in) - alloc_failed = 1; - - if (in && oh->shadowsObject > 0) { -- yaffs_HandleShadowedObject(dev, -- oh-> -- shadowsObject, -- 0); -+ -+ struct yaffs_ShadowFixerStruct *fixer; -+ fixer = YMALLOC(sizeof(struct yaffs_ShadowFixerStruct)); -+ if (fixer) { -+ fixer->next = shadowFixerList; -+ shadowFixerList = fixer; -+ fixer->objectId = tags.objectId; -+ fixer->shadowedId = oh->shadowsObject; -+ } -+ - } - - if (in && in->valid) { -@@ -5643,12 +5649,10 @@ static int yaffs_Scan(yaffs_Device * dev - unsigned existingSerial = in->serial; - unsigned newSerial = tags.serialNumber; - -- if (dev->isYaffs2 || -- ((existingSerial + 1) & 3) == -- newSerial) { -+ if (((existingSerial + 1) & 3) == newSerial) { - /* Use new one - destroy the exisiting one */ - yaffs_DeleteChunk(dev, -- in->chunkId, -+ in->hdrChunk, - 1, __LINE__); - in->valid = 0; - } else { -@@ -5681,7 +5685,8 @@ static int yaffs_Scan(yaffs_Device * dev - in->yst_ctime = oh->yst_ctime; - in->yst_rdev = oh->yst_rdev; - #endif -- in->chunkId = chunk; -+ in->hdrChunk = chunk; -+ in->serial = tags.serialNumber; - - } else if (in && !in->valid) { - /* we need to load this info */ -@@ -5705,7 +5710,8 @@ static int yaffs_Scan(yaffs_Device * dev - in->yst_ctime = oh->yst_ctime; - in->yst_rdev = oh->yst_rdev; - #endif -- in->chunkId = chunk; -+ in->hdrChunk = chunk; -+ in->serial = tags.serialNumber; - - yaffs_SetObjectName(in, oh->name); - in->dirty = 0; -@@ -5718,25 +5724,25 @@ static int yaffs_Scan(yaffs_Device * dev - yaffs_FindOrCreateObjectByNumber - (dev, oh->parentObjectId, - YAFFS_OBJECT_TYPE_DIRECTORY); -- if (parent->variantType == -+ if (!parent) -+ alloc_failed = 1; -+ if (parent && parent->variantType == - YAFFS_OBJECT_TYPE_UNKNOWN) { - /* Set up as a directory */ - parent->variantType = -- YAFFS_OBJECT_TYPE_DIRECTORY; -- INIT_LIST_HEAD(&parent->variant. -- directoryVariant. -- children); -- } else if (parent->variantType != -- YAFFS_OBJECT_TYPE_DIRECTORY) -- { -+ YAFFS_OBJECT_TYPE_DIRECTORY; -+ YINIT_LIST_HEAD(&parent->variant. -+ directoryVariant. -+ children); -+ } else if (!parent || parent->variantType != -+ YAFFS_OBJECT_TYPE_DIRECTORY) { - /* Hoosterman, another problem.... - * We're trying to use a non-directory as a directory - */ - - T(YAFFS_TRACE_ERROR, - (TSTR -- ("yaffs tragedy: attempting to use non-directory as" -- " a directory in scan. Put in lost+found." -+ ("yaffs tragedy: attempting to use non-directory as a directory in scan. Put in lost+found." - TENDSTR))); - parent = dev->lostNFoundDir; - } -@@ -5760,15 +5766,6 @@ static int yaffs_Scan(yaffs_Device * dev - /* Todo got a problem */ - break; - case YAFFS_OBJECT_TYPE_FILE: -- if (dev->isYaffs2 -- && oh->isShrink) { -- /* Prune back the shrunken chunks */ -- yaffs_PruneResizedChunks -- (in, oh->fileSize); -- /* Mark the block as having a shrinkHeader */ -- bi->hasShrinkHeader = 1; -- } -- - if (dev->useHeaderFileSize) - - in->variant.fileVariant. -@@ -5778,11 +5775,11 @@ static int yaffs_Scan(yaffs_Device * dev - break; - case YAFFS_OBJECT_TYPE_HARDLINK: - in->variant.hardLinkVariant. -- equivalentObjectId = -- oh->equivalentObjectId; -+ equivalentObjectId = -+ oh->equivalentObjectId; - in->hardLinks.next = -- (struct list_head *) -- hardList; -+ (struct ylist_head *) -+ hardList; - hardList = in; - break; - case YAFFS_OBJECT_TYPE_DIRECTORY: -@@ -5794,15 +5791,17 @@ static int yaffs_Scan(yaffs_Device * dev - case YAFFS_OBJECT_TYPE_SYMLINK: - in->variant.symLinkVariant.alias = - yaffs_CloneString(oh->alias); -- if(!in->variant.symLinkVariant.alias) -+ if (!in->variant.symLinkVariant.alias) - alloc_failed = 1; - break; - } - -+/* - if (parent == dev->deletedDir) { - yaffs_DestroyObject(in); - bi->hasShrinkHeader = 1; - } -+*/ - } - } - } -@@ -5823,10 +5822,6 @@ static int yaffs_Scan(yaffs_Device * dev - - } - -- if (blockIndex) { -- YFREE(blockIndex); -- } -- - - /* Ok, we've done all the scanning. - * Fix up the hard link chains. -@@ -5834,32 +5829,36 @@ static int yaffs_Scan(yaffs_Device * dev - * hardlinks. - */ - -- yaffs_HardlinkFixup(dev,hardList); -+ yaffs_HardlinkFixup(dev, hardList); - -- /* Handle the unlinked files. Since they were left in an unlinked state we should -- * just delete them. -- */ -+ /* Fix up any shadowed objects */ - { -- struct list_head *i; -- struct list_head *n; -+ struct yaffs_ShadowFixerStruct *fixer; -+ yaffs_Object *obj; - -- yaffs_Object *l; -- /* Soft delete all the unlinked files */ -- list_for_each_safe(i, n, -- &dev->unlinkedDir->variant.directoryVariant. -- children) { -- if (i) { -- l = list_entry(i, yaffs_Object, siblings); -- yaffs_DestroyObject(l); -- } -+ while (shadowFixerList) { -+ fixer = shadowFixerList; -+ shadowFixerList = fixer->next; -+ /* Complete the rename transaction by deleting the shadowed object -+ * then setting the object header to unshadowed. -+ */ -+ obj = yaffs_FindObjectByNumber(dev, fixer->shadowedId); -+ if (obj) -+ yaffs_DeleteObject(obj); -+ -+ obj = yaffs_FindObjectByNumber(dev, fixer->objectId); -+ -+ if (obj) -+ yaffs_UpdateObjectHeader(obj, NULL, 1, 0, 0); -+ -+ YFREE(fixer); - } - } - - yaffs_ReleaseTempBuffer(dev, chunkData, __LINE__); - -- if(alloc_failed){ -+ if (alloc_failed) - return YAFFS_FAIL; -- } - - T(YAFFS_TRACE_SCAN, (TSTR("yaffs_Scan ends" TENDSTR))); - -@@ -5871,25 +5870,27 @@ static void yaffs_CheckObjectDetailsLoad - { - __u8 *chunkData; - yaffs_ObjectHeader *oh; -- yaffs_Device *dev = in->myDev; -+ yaffs_Device *dev; - yaffs_ExtendedTags tags; - int result; - int alloc_failed = 0; - -- if(!in) -+ if (!in) - return; - -+ dev = in->myDev; -+ - #if 0 -- T(YAFFS_TRACE_SCAN,(TSTR("details for object %d %s loaded" TENDSTR), -+ T(YAFFS_TRACE_SCAN, (TSTR("details for object %d %s loaded" TENDSTR), - in->objectId, - in->lazyLoaded ? "not yet" : "already")); - #endif - -- if(in->lazyLoaded){ -+ if (in->lazyLoaded && in->hdrChunk > 0) { - in->lazyLoaded = 0; - chunkData = yaffs_GetTempBuffer(dev, __LINE__); - -- result = yaffs_ReadChunkWithTagsFromNAND(dev,in->chunkId,chunkData,&tags); -+ result = yaffs_ReadChunkWithTagsFromNAND(dev, in->hdrChunk, chunkData, &tags); - oh = (yaffs_ObjectHeader *) chunkData; - - in->yst_mode = oh->yst_mode; -@@ -5911,18 +5912,18 @@ static void yaffs_CheckObjectDetailsLoad - #endif - yaffs_SetObjectName(in, oh->name); - -- if(in->variantType == YAFFS_OBJECT_TYPE_SYMLINK){ -- in->variant.symLinkVariant.alias = -+ if (in->variantType == YAFFS_OBJECT_TYPE_SYMLINK) { -+ in->variant.symLinkVariant.alias = - yaffs_CloneString(oh->alias); -- if(!in->variant.symLinkVariant.alias) -+ if (!in->variant.symLinkVariant.alias) - alloc_failed = 1; /* Not returned to caller */ - } - -- yaffs_ReleaseTempBuffer(dev,chunkData, __LINE__); -+ yaffs_ReleaseTempBuffer(dev, chunkData, __LINE__); - } - } - --static int yaffs_ScanBackwards(yaffs_Device * dev) -+static int yaffs_ScanBackwards(yaffs_Device *dev) - { - yaffs_ExtendedTags tags; - int blk; -@@ -5938,7 +5939,7 @@ static int yaffs_ScanBackwards(yaffs_Dev - yaffs_BlockState state; - yaffs_Object *hardList = NULL; - yaffs_BlockInfo *bi; -- int sequenceNumber; -+ __u32 sequenceNumber; - yaffs_ObjectHeader *oh; - yaffs_Object *in; - yaffs_Object *parent; -@@ -5972,12 +5973,12 @@ static int yaffs_ScanBackwards(yaffs_Dev - - blockIndex = YMALLOC(nBlocks * sizeof(yaffs_BlockIndex)); - -- if(!blockIndex) { -+ if (!blockIndex) { - blockIndex = YMALLOC_ALT(nBlocks * sizeof(yaffs_BlockIndex)); - altBlockIndex = 1; - } - -- if(!blockIndex) { -+ if (!blockIndex) { - T(YAFFS_TRACE_SCAN, - (TSTR("yaffs_Scan() could not allocate block index!" TENDSTR))); - return YAFFS_FAIL; -@@ -5999,15 +6000,17 @@ static int yaffs_ScanBackwards(yaffs_Dev - bi->blockState = state; - bi->sequenceNumber = sequenceNumber; - -- if(bi->sequenceNumber == YAFFS_SEQUENCE_CHECKPOINT_DATA) -+ if (bi->sequenceNumber == YAFFS_SEQUENCE_CHECKPOINT_DATA) - bi->blockState = state = YAFFS_BLOCK_STATE_CHECKPOINT; -+ if (bi->sequenceNumber == YAFFS_SEQUENCE_BAD_BLOCK) -+ bi->blockState = state = YAFFS_BLOCK_STATE_DEAD; - - T(YAFFS_TRACE_SCAN_DEBUG, - (TSTR("Block scanning block %d state %d seq %d" TENDSTR), blk, - state, sequenceNumber)); - - -- if(state == YAFFS_BLOCK_STATE_CHECKPOINT){ -+ if (state == YAFFS_BLOCK_STATE_CHECKPOINT) { - dev->blocksInCheckpoint++; - - } else if (state == YAFFS_BLOCK_STATE_DEAD) { -@@ -6021,8 +6024,7 @@ static int yaffs_ScanBackwards(yaffs_Dev - } else if (state == YAFFS_BLOCK_STATE_NEEDS_SCANNING) { - - /* Determine the highest sequence number */ -- if (dev->isYaffs2 && -- sequenceNumber >= YAFFS_LOWEST_SEQUENCE_NUMBER && -+ if (sequenceNumber >= YAFFS_LOWEST_SEQUENCE_NUMBER && - sequenceNumber < YAFFS_HIGHEST_SEQUENCE_NUMBER) { - - blockIndex[nBlocksToScan].seq = sequenceNumber; -@@ -6030,10 +6032,9 @@ static int yaffs_ScanBackwards(yaffs_Dev - - nBlocksToScan++; - -- if (sequenceNumber >= dev->sequenceNumber) { -+ if (sequenceNumber >= dev->sequenceNumber) - dev->sequenceNumber = sequenceNumber; -- } -- } else if (dev->isYaffs2) { -+ } else { - /* TODO: Nasty sequence number! */ - T(YAFFS_TRACE_SCAN, - (TSTR -@@ -6053,11 +6054,13 @@ static int yaffs_ScanBackwards(yaffs_Dev - - /* Sort the blocks */ - #ifndef CONFIG_YAFFS_USE_OWN_SORT -- yaffs_qsort(blockIndex, nBlocksToScan, -- sizeof(yaffs_BlockIndex), ybicmp); -+ { -+ /* Use qsort now. */ -+ yaffs_qsort(blockIndex, nBlocksToScan, sizeof(yaffs_BlockIndex), ybicmp); -+ } - #else - { -- /* Dungy old bubble sort... */ -+ /* Dungy old bubble sort... */ - - yaffs_BlockIndex temp; - int i; -@@ -6075,7 +6078,7 @@ static int yaffs_ScanBackwards(yaffs_Dev - - YYIELD(); - -- T(YAFFS_TRACE_SCAN, (TSTR("...done" TENDSTR))); -+ T(YAFFS_TRACE_SCAN, (TSTR("...done" TENDSTR))); - - /* Now scan the blocks looking at the data. */ - startIterator = 0; -@@ -6085,10 +6088,10 @@ static int yaffs_ScanBackwards(yaffs_Dev - - /* For each block.... backwards */ - for (blockIterator = endIterator; !alloc_failed && blockIterator >= startIterator; -- blockIterator--) { -- /* Cooperative multitasking! This loop can run for so -+ blockIterator--) { -+ /* Cooperative multitasking! This loop can run for so - long that watchdog timers expire. */ -- YYIELD(); -+ YYIELD(); - - /* get the block to scan in the correct order */ - blk = blockIndex[blockIterator].block; -@@ -6127,10 +6130,8 @@ static int yaffs_ScanBackwards(yaffs_Dev - * this is the one being allocated from - */ - -- if(foundChunksInBlock) -- { -+ if (foundChunksInBlock) { - /* This is a chunk that was skipped due to failing the erased check */ -- - } else if (c == 0) { - /* We're looking at the first chunk in the block so the block is unused */ - state = YAFFS_BLOCK_STATE_EMPTY; -@@ -6138,7 +6139,7 @@ static int yaffs_ScanBackwards(yaffs_Dev - } else { - if (state == YAFFS_BLOCK_STATE_NEEDS_SCANNING || - state == YAFFS_BLOCK_STATE_ALLOCATING) { -- if(dev->sequenceNumber == bi->sequenceNumber) { -+ if (dev->sequenceNumber == bi->sequenceNumber) { - /* this is the block being allocated from */ - - T(YAFFS_TRACE_SCAN, -@@ -6150,27 +6151,31 @@ static int yaffs_ScanBackwards(yaffs_Dev - dev->allocationBlock = blk; - dev->allocationPage = c; - dev->allocationBlockFinder = blk; -- } -- else { -+ } else { - /* This is a partially written block that is not - * the current allocation block. This block must have - * had a write failure, so set up for retirement. - */ - -- bi->needsRetiring = 1; -+ /* bi->needsRetiring = 1; ??? TODO */ - bi->gcPrioritise = 1; - - T(YAFFS_TRACE_ALWAYS, -- (TSTR("Partially written block %d being set for retirement" TENDSTR), -+ (TSTR("Partially written block %d detected" TENDSTR), - blk)); - } -- - } -- - } - - dev->nFreeChunks++; - -+ } else if (tags.eccResult == YAFFS_ECC_RESULT_UNFIXED) { -+ T(YAFFS_TRACE_SCAN, -+ (TSTR(" Unfixed ECC in chunk(%d:%d), chunk ignored"TENDSTR), -+ blk, c)); -+ -+ dev->nFreeChunks++; -+ - } else if (tags.chunkId > 0) { - /* chunkId > 0 so it is a data chunk... */ - unsigned int endpos; -@@ -6187,7 +6192,7 @@ static int yaffs_ScanBackwards(yaffs_Dev - tags. - objectId, - YAFFS_OBJECT_TYPE_FILE); -- if(!in){ -+ if (!in) { - /* Out of memory */ - alloc_failed = 1; - } -@@ -6197,8 +6202,8 @@ static int yaffs_ScanBackwards(yaffs_Dev - && chunkBase < - in->variant.fileVariant.shrinkSize) { - /* This has not been invalidated by a resize */ -- if(!yaffs_PutChunkIntoFile(in, tags.chunkId, -- chunk, -1)){ -+ if (!yaffs_PutChunkIntoFile(in, tags.chunkId, -+ chunk, -1)) { - alloc_failed = 1; - } - -@@ -6221,7 +6226,7 @@ static int yaffs_ScanBackwards(yaffs_Dev - scannedFileSize; - } - -- } else if(in) { -+ } else if (in) { - /* This chunk has been invalidated by a resize, so delete */ - yaffs_DeleteChunk(dev, chunk, 1, __LINE__); - -@@ -6242,6 +6247,8 @@ static int yaffs_ScanBackwards(yaffs_Dev - in = yaffs_FindOrCreateObjectByNumber - (dev, tags.objectId, - tags.extraObjectType); -+ if (!in) -+ alloc_failed = 1; - } - - if (!in || -@@ -6251,8 +6258,7 @@ static int yaffs_ScanBackwards(yaffs_Dev - tags.extraShadows || - (!in->valid && - (tags.objectId == YAFFS_OBJECTID_ROOT || -- tags.objectId == YAFFS_OBJECTID_LOSTNFOUND)) -- ) { -+ tags.objectId == YAFFS_OBJECTID_LOSTNFOUND))) { - - /* If we don't have valid info then we need to read the chunk - * TODO In future we can probably defer reading the chunk and -@@ -6266,8 +6272,17 @@ static int yaffs_ScanBackwards(yaffs_Dev - - oh = (yaffs_ObjectHeader *) chunkData; - -- if (!in) -+ if (dev->inbandTags) { -+ /* Fix up the header if they got corrupted by inband tags */ -+ oh->shadowsObject = oh->inbandShadowsObject; -+ oh->isShrink = oh->inbandIsShrink; -+ } -+ -+ if (!in) { - in = yaffs_FindOrCreateObjectByNumber(dev, tags.objectId, oh->type); -+ if (!in) -+ alloc_failed = 1; -+ } - - } - -@@ -6275,10 +6290,9 @@ static int yaffs_ScanBackwards(yaffs_Dev - /* TODO Hoosterman we have a problem! */ - T(YAFFS_TRACE_ERROR, - (TSTR -- ("yaffs tragedy: Could not make object for object %d " -- "at chunk %d during scan" -+ ("yaffs tragedy: Could not make object for object %d at chunk %d during scan" - TENDSTR), tags.objectId, chunk)); -- -+ continue; - } - - if (in->valid) { -@@ -6289,10 +6303,9 @@ static int yaffs_ScanBackwards(yaffs_Dev - - if ((in->variantType == YAFFS_OBJECT_TYPE_FILE) && - ((oh && -- oh-> type == YAFFS_OBJECT_TYPE_FILE)|| -+ oh->type == YAFFS_OBJECT_TYPE_FILE) || - (tags.extraHeaderInfoAvailable && -- tags.extraObjectType == YAFFS_OBJECT_TYPE_FILE)) -- ) { -+ tags.extraObjectType == YAFFS_OBJECT_TYPE_FILE))) { - __u32 thisSize = - (oh) ? oh->fileSize : tags. - extraFileLength; -@@ -6300,7 +6313,9 @@ static int yaffs_ScanBackwards(yaffs_Dev - (oh) ? oh-> - parentObjectId : tags. - extraParentObjectId; -- unsigned isShrink = -+ -+ -+ isShrink = - (oh) ? oh->isShrink : tags. - extraIsShrinkHeader; - -@@ -6323,9 +6338,8 @@ static int yaffs_ScanBackwards(yaffs_Dev - thisSize; - } - -- if (isShrink) { -+ if (isShrink) - bi->hasShrinkHeader = 1; -- } - - } - /* Use existing - destroy this one. */ -@@ -6333,6 +6347,17 @@ static int yaffs_ScanBackwards(yaffs_Dev - - } - -+ if (!in->valid && in->variantType != -+ (oh ? oh->type : tags.extraObjectType)) -+ T(YAFFS_TRACE_ERROR, ( -+ TSTR("yaffs tragedy: Bad object type, " -+ TCONT("%d != %d, for object %d at chunk ") -+ TCONT("%d during scan") -+ TENDSTR), oh ? -+ oh->type : tags.extraObjectType, -+ in->variantType, tags.objectId, -+ chunk)); -+ - if (!in->valid && - (tags.objectId == YAFFS_OBJECTID_ROOT || - tags.objectId == -@@ -6340,7 +6365,7 @@ static int yaffs_ScanBackwards(yaffs_Dev - /* We only load some info, don't fiddle with directory structure */ - in->valid = 1; - -- if(oh) { -+ if (oh) { - in->variantType = oh->type; - - in->yst_mode = oh->yst_mode; -@@ -6365,15 +6390,15 @@ static int yaffs_ScanBackwards(yaffs_Dev - in->lazyLoaded = 1; - } - -- in->chunkId = chunk; -+ in->hdrChunk = chunk; - - } else if (!in->valid) { - /* we need to load this info */ - - in->valid = 1; -- in->chunkId = chunk; -+ in->hdrChunk = chunk; - -- if(oh) { -+ if (oh) { - in->variantType = oh->type; - - in->yst_mode = oh->yst_mode; -@@ -6403,20 +6428,19 @@ static int yaffs_ScanBackwards(yaffs_Dev - yaffs_SetObjectName(in, oh->name); - parent = - yaffs_FindOrCreateObjectByNumber -- (dev, oh->parentObjectId, -- YAFFS_OBJECT_TYPE_DIRECTORY); -+ (dev, oh->parentObjectId, -+ YAFFS_OBJECT_TYPE_DIRECTORY); - - fileSize = oh->fileSize; -- isShrink = oh->isShrink; -+ isShrink = oh->isShrink; - equivalentObjectId = oh->equivalentObjectId; - -- } -- else { -+ } else { - in->variantType = tags.extraObjectType; - parent = - yaffs_FindOrCreateObjectByNumber -- (dev, tags.extraParentObjectId, -- YAFFS_OBJECT_TYPE_DIRECTORY); -+ (dev, tags.extraParentObjectId, -+ YAFFS_OBJECT_TYPE_DIRECTORY); - fileSize = tags.extraFileLength; - isShrink = tags.extraIsShrinkHeader; - equivalentObjectId = tags.extraEquivalentObjectId; -@@ -6425,29 +6449,30 @@ static int yaffs_ScanBackwards(yaffs_Dev - } - in->dirty = 0; - -+ if (!parent) -+ alloc_failed = 1; -+ - /* directory stuff... - * hook up to parent - */ - -- if (parent->variantType == -+ if (parent && parent->variantType == - YAFFS_OBJECT_TYPE_UNKNOWN) { - /* Set up as a directory */ - parent->variantType = -- YAFFS_OBJECT_TYPE_DIRECTORY; -- INIT_LIST_HEAD(&parent->variant. -- directoryVariant. -- children); -- } else if (parent->variantType != -- YAFFS_OBJECT_TYPE_DIRECTORY) -- { -+ YAFFS_OBJECT_TYPE_DIRECTORY; -+ YINIT_LIST_HEAD(&parent->variant. -+ directoryVariant. -+ children); -+ } else if (!parent || parent->variantType != -+ YAFFS_OBJECT_TYPE_DIRECTORY) { - /* Hoosterman, another problem.... - * We're trying to use a non-directory as a directory - */ - - T(YAFFS_TRACE_ERROR, - (TSTR -- ("yaffs tragedy: attempting to use non-directory as" -- " a directory in scan. Put in lost+found." -+ ("yaffs tragedy: attempting to use non-directory as a directory in scan. Put in lost+found." - TENDSTR))); - parent = dev->lostNFoundDir; - } -@@ -6494,12 +6519,12 @@ static int yaffs_ScanBackwards(yaffs_Dev - - break; - case YAFFS_OBJECT_TYPE_HARDLINK: -- if(!itsUnlinked) { -- in->variant.hardLinkVariant.equivalentObjectId = -- equivalentObjectId; -- in->hardLinks.next = -- (struct list_head *) hardList; -- hardList = in; -+ if (!itsUnlinked) { -+ in->variant.hardLinkVariant.equivalentObjectId = -+ equivalentObjectId; -+ in->hardLinks.next = -+ (struct ylist_head *) hardList; -+ hardList = in; - } - break; - case YAFFS_OBJECT_TYPE_DIRECTORY: -@@ -6509,12 +6534,11 @@ static int yaffs_ScanBackwards(yaffs_Dev - /* Do nothing */ - break; - case YAFFS_OBJECT_TYPE_SYMLINK: -- if(oh){ -- in->variant.symLinkVariant.alias = -- yaffs_CloneString(oh-> -- alias); -- if(!in->variant.symLinkVariant.alias) -- alloc_failed = 1; -+ if (oh) { -+ in->variant.symLinkVariant.alias = -+ yaffs_CloneString(oh->alias); -+ if (!in->variant.symLinkVariant.alias) -+ alloc_failed = 1; - } - break; - } -@@ -6551,75 +6575,129 @@ static int yaffs_ScanBackwards(yaffs_Dev - * We should now have scanned all the objects, now it's time to add these - * hardlinks. - */ -- yaffs_HardlinkFixup(dev,hardList); -+ yaffs_HardlinkFixup(dev, hardList); - - -- /* -- * Sort out state of unlinked and deleted objects. -- */ -- { -- struct list_head *i; -- struct list_head *n; -+ yaffs_ReleaseTempBuffer(dev, chunkData, __LINE__); - -- yaffs_Object *l; -+ if (alloc_failed) -+ return YAFFS_FAIL; - -- /* Soft delete all the unlinked files */ -- list_for_each_safe(i, n, -- &dev->unlinkedDir->variant.directoryVariant. -- children) { -- if (i) { -- l = list_entry(i, yaffs_Object, siblings); -- yaffs_DestroyObject(l); -- } -- } -+ T(YAFFS_TRACE_SCAN, (TSTR("yaffs_ScanBackwards ends" TENDSTR))); - -- /* Soft delete all the deletedDir files */ -- list_for_each_safe(i, n, -- &dev->deletedDir->variant.directoryVariant. -- children) { -- if (i) { -- l = list_entry(i, yaffs_Object, siblings); -- yaffs_DestroyObject(l); -+ return YAFFS_OK; -+} - -- } -+/*------------------------------ Directory Functions ----------------------------- */ -+ -+static void yaffs_VerifyObjectInDirectory(yaffs_Object *obj) -+{ -+ struct ylist_head *lh; -+ yaffs_Object *listObj; -+ -+ int count = 0; -+ -+ if (!obj) { -+ T(YAFFS_TRACE_ALWAYS, (TSTR("No object to verify" TENDSTR))); -+ YBUG(); -+ return; -+ } -+ -+ if (yaffs_SkipVerification(obj->myDev)) -+ return; -+ -+ if (!obj->parent) { -+ T(YAFFS_TRACE_ALWAYS, (TSTR("Object does not have parent" TENDSTR))); -+ YBUG(); -+ return; -+ } -+ -+ if (obj->parent->variantType != YAFFS_OBJECT_TYPE_DIRECTORY) { -+ T(YAFFS_TRACE_ALWAYS, (TSTR("Parent is not directory" TENDSTR))); -+ YBUG(); -+ } -+ -+ /* Iterate through the objects in each hash entry */ -+ -+ ylist_for_each(lh, &obj->parent->variant.directoryVariant.children) { -+ if (lh) { -+ listObj = ylist_entry(lh, yaffs_Object, siblings); -+ yaffs_VerifyObject(listObj); -+ if (obj == listObj) -+ count++; - } -+ } -+ -+ if (count != 1) { -+ T(YAFFS_TRACE_ALWAYS, (TSTR("Object in directory %d times" TENDSTR), count)); -+ YBUG(); - } -+} - -- yaffs_ReleaseTempBuffer(dev, chunkData, __LINE__); -+static void yaffs_VerifyDirectory(yaffs_Object *directory) -+{ -+ struct ylist_head *lh; -+ yaffs_Object *listObj; - -- if(alloc_failed){ -- return YAFFS_FAIL; -+ if (!directory) { -+ YBUG(); -+ return; - } - -- T(YAFFS_TRACE_SCAN, (TSTR("yaffs_ScanBackwards ends" TENDSTR))); -+ if (yaffs_SkipFullVerification(directory->myDev)) -+ return; - -- return YAFFS_OK; -+ if (directory->variantType != YAFFS_OBJECT_TYPE_DIRECTORY) { -+ T(YAFFS_TRACE_ALWAYS, (TSTR("Directory has wrong type: %d" TENDSTR), directory->variantType)); -+ YBUG(); -+ } -+ -+ /* Iterate through the objects in each hash entry */ -+ -+ ylist_for_each(lh, &directory->variant.directoryVariant.children) { -+ if (lh) { -+ listObj = ylist_entry(lh, yaffs_Object, siblings); -+ if (listObj->parent != directory) { -+ T(YAFFS_TRACE_ALWAYS, (TSTR("Object in directory list has wrong parent %p" TENDSTR), listObj->parent)); -+ YBUG(); -+ } -+ yaffs_VerifyObjectInDirectory(listObj); -+ } -+ } - } - --/*------------------------------ Directory Functions ----------------------------- */ - --static void yaffs_RemoveObjectFromDirectory(yaffs_Object * obj) -+static void yaffs_RemoveObjectFromDirectory(yaffs_Object *obj) - { - yaffs_Device *dev = obj->myDev; -+ yaffs_Object *parent; -+ -+ yaffs_VerifyObjectInDirectory(obj); -+ parent = obj->parent; -+ -+ yaffs_VerifyDirectory(parent); - -- if(dev && dev->removeObjectCallback) -+ if (dev && dev->removeObjectCallback) - dev->removeObjectCallback(obj); - -- list_del_init(&obj->siblings); -+ -+ ylist_del_init(&obj->siblings); - obj->parent = NULL; -+ -+ yaffs_VerifyDirectory(parent); - } - - --static void yaffs_AddObjectToDirectory(yaffs_Object * directory, -- yaffs_Object * obj) -+static void yaffs_AddObjectToDirectory(yaffs_Object *directory, -+ yaffs_Object *obj) - { -- - if (!directory) { - T(YAFFS_TRACE_ALWAYS, - (TSTR - ("tragedy: Trying to add an object to a null pointer directory" - TENDSTR))); - YBUG(); -+ return; - } - if (directory->variantType != YAFFS_OBJECT_TYPE_DIRECTORY) { - T(YAFFS_TRACE_ALWAYS, -@@ -6631,37 +6709,42 @@ static void yaffs_AddObjectToDirectory(y - - if (obj->siblings.prev == NULL) { - /* Not initialised */ -- INIT_LIST_HEAD(&obj->siblings); -- -- } else if (!list_empty(&obj->siblings)) { -- /* If it is holed up somewhere else, un hook it */ -- yaffs_RemoveObjectFromDirectory(obj); -+ YBUG(); - } -+ -+ -+ yaffs_VerifyDirectory(directory); -+ -+ yaffs_RemoveObjectFromDirectory(obj); -+ -+ - /* Now add it */ -- list_add(&obj->siblings, &directory->variant.directoryVariant.children); -+ ylist_add(&obj->siblings, &directory->variant.directoryVariant.children); - obj->parent = directory; - - if (directory == obj->myDev->unlinkedDir -- || directory == obj->myDev->deletedDir) { -+ || directory == obj->myDev->deletedDir) { - obj->unlinked = 1; - obj->myDev->nUnlinkedFiles++; - obj->renameAllowed = 0; - } -+ -+ yaffs_VerifyDirectory(directory); -+ yaffs_VerifyObjectInDirectory(obj); - } - --yaffs_Object *yaffs_FindObjectByName(yaffs_Object * directory, -- const YCHAR * name) -+yaffs_Object *yaffs_FindObjectByName(yaffs_Object *directory, -+ const YCHAR *name) - { - int sum; - -- struct list_head *i; -+ struct ylist_head *i; - YCHAR buffer[YAFFS_MAX_NAME_LENGTH + 1]; - - yaffs_Object *l; - -- if (!name) { -+ if (!name) - return NULL; -- } - - if (!directory) { - T(YAFFS_TRACE_ALWAYS, -@@ -6669,6 +6752,7 @@ yaffs_Object *yaffs_FindObjectByName(yaf - ("tragedy: yaffs_FindObjectByName: null pointer directory" - TENDSTR))); - YBUG(); -+ return NULL; - } - if (directory->variantType != YAFFS_OBJECT_TYPE_DIRECTORY) { - T(YAFFS_TRACE_ALWAYS, -@@ -6679,28 +6763,27 @@ yaffs_Object *yaffs_FindObjectByName(yaf - - sum = yaffs_CalcNameSum(name); - -- list_for_each(i, &directory->variant.directoryVariant.children) { -+ ylist_for_each(i, &directory->variant.directoryVariant.children) { - if (i) { -- l = list_entry(i, yaffs_Object, siblings); -+ l = ylist_entry(i, yaffs_Object, siblings); -+ -+ if (l->parent != directory) -+ YBUG(); - - yaffs_CheckObjectDetailsLoaded(l); - - /* Special case for lost-n-found */ - if (l->objectId == YAFFS_OBJECTID_LOSTNFOUND) { -- if (yaffs_strcmp(name, YAFFS_LOSTNFOUND_NAME) == 0) { -+ if (yaffs_strcmp(name, YAFFS_LOSTNFOUND_NAME) == 0) - return l; -- } -- } else if (yaffs_SumCompare(l->sum, sum) || l->chunkId <= 0) -- { -- /* LostnFound cunk called Objxxx -+ } else if (yaffs_SumCompare(l->sum, sum) || l->hdrChunk <= 0) { -+ /* LostnFound chunk called Objxxx - * Do a real check - */ - yaffs_GetObjectName(l, buffer, - YAFFS_MAX_NAME_LENGTH); -- if (yaffs_strncmp(name, buffer,YAFFS_MAX_NAME_LENGTH) == 0) { -+ if (yaffs_strncmp(name, buffer, YAFFS_MAX_NAME_LENGTH) == 0) - return l; -- } -- - } - } - } -@@ -6710,10 +6793,10 @@ yaffs_Object *yaffs_FindObjectByName(yaf - - - #if 0 --int yaffs_ApplyToDirectoryChildren(yaffs_Object * theDir, -- int (*fn) (yaffs_Object *)) -+int yaffs_ApplyToDirectoryChildren(yaffs_Object *theDir, -+ int (*fn) (yaffs_Object *)) - { -- struct list_head *i; -+ struct ylist_head *i; - yaffs_Object *l; - - if (!theDir) { -@@ -6722,20 +6805,21 @@ int yaffs_ApplyToDirectoryChildren(yaffs - ("tragedy: yaffs_FindObjectByName: null pointer directory" - TENDSTR))); - YBUG(); -+ return YAFFS_FAIL; - } - if (theDir->variantType != YAFFS_OBJECT_TYPE_DIRECTORY) { - T(YAFFS_TRACE_ALWAYS, - (TSTR - ("tragedy: yaffs_FindObjectByName: non-directory" TENDSTR))); - YBUG(); -+ return YAFFS_FAIL; - } - -- list_for_each(i, &theDir->variant.directoryVariant.children) { -+ ylist_for_each(i, &theDir->variant.directoryVariant.children) { - if (i) { -- l = list_entry(i, yaffs_Object, siblings); -- if (l && !fn(l)) { -+ l = ylist_entry(i, yaffs_Object, siblings); -+ if (l && !fn(l)) - return YAFFS_FAIL; -- } - } - } - -@@ -6748,7 +6832,7 @@ int yaffs_ApplyToDirectoryChildren(yaffs - * actual object. - */ - --yaffs_Object *yaffs_GetEquivalentObject(yaffs_Object * obj) -+yaffs_Object *yaffs_GetEquivalentObject(yaffs_Object *obj) - { - if (obj && obj->variantType == YAFFS_OBJECT_TYPE_HARDLINK) { - /* We want the object id of the equivalent object, not this one */ -@@ -6756,10 +6840,9 @@ yaffs_Object *yaffs_GetEquivalentObject( - yaffs_CheckObjectDetailsLoaded(obj); - } - return obj; -- - } - --int yaffs_GetObjectName(yaffs_Object * obj, YCHAR * name, int buffSize) -+int yaffs_GetObjectName(yaffs_Object *obj, YCHAR *name, int buffSize) - { - memset(name, 0, buffSize * sizeof(YCHAR)); - -@@ -6767,18 +6850,26 @@ int yaffs_GetObjectName(yaffs_Object * o - - if (obj->objectId == YAFFS_OBJECTID_LOSTNFOUND) { - yaffs_strncpy(name, YAFFS_LOSTNFOUND_NAME, buffSize - 1); -- } else if (obj->chunkId <= 0) { -+ } else if (obj->hdrChunk <= 0) { - YCHAR locName[20]; -+ YCHAR numString[20]; -+ YCHAR *x = &numString[19]; -+ unsigned v = obj->objectId; -+ numString[19] = 0; -+ while (v > 0) { -+ x--; -+ *x = '0' + (v % 10); -+ v /= 10; -+ } - /* make up a name */ -- yaffs_sprintf(locName, _Y("%s%d"), YAFFS_LOSTNFOUND_PREFIX, -- obj->objectId); -+ yaffs_strcpy(locName, YAFFS_LOSTNFOUND_PREFIX); -+ yaffs_strcat(locName, x); - yaffs_strncpy(name, locName, buffSize - 1); - - } - #ifdef CONFIG_YAFFS_SHORT_NAMES_IN_RAM -- else if (obj->shortName[0]) { -+ else if (obj->shortName[0]) - yaffs_strcpy(name, obj->shortName); -- } - #endif - else { - int result; -@@ -6788,9 +6879,9 @@ int yaffs_GetObjectName(yaffs_Object * o - - memset(buffer, 0, obj->myDev->nDataBytesPerChunk); - -- if (obj->chunkId >= 0) { -+ if (obj->hdrChunk > 0) { - result = yaffs_ReadChunkWithTagsFromNAND(obj->myDev, -- obj->chunkId, buffer, -+ obj->hdrChunk, buffer, - NULL); - } - yaffs_strncpy(name, oh->name, buffSize - 1); -@@ -6801,46 +6892,43 @@ int yaffs_GetObjectName(yaffs_Object * o - return yaffs_strlen(name); - } - --int yaffs_GetObjectFileLength(yaffs_Object * obj) -+int yaffs_GetObjectFileLength(yaffs_Object *obj) - { -- - /* Dereference any hard linking */ - obj = yaffs_GetEquivalentObject(obj); - -- if (obj->variantType == YAFFS_OBJECT_TYPE_FILE) { -+ if (obj->variantType == YAFFS_OBJECT_TYPE_FILE) - return obj->variant.fileVariant.fileSize; -- } -- if (obj->variantType == YAFFS_OBJECT_TYPE_SYMLINK) { -+ if (obj->variantType == YAFFS_OBJECT_TYPE_SYMLINK) - return yaffs_strlen(obj->variant.symLinkVariant.alias); -- } else { -+ else { - /* Only a directory should drop through to here */ - return obj->myDev->nDataBytesPerChunk; - } - } - --int yaffs_GetObjectLinkCount(yaffs_Object * obj) -+int yaffs_GetObjectLinkCount(yaffs_Object *obj) - { - int count = 0; -- struct list_head *i; -+ struct ylist_head *i; - -- if (!obj->unlinked) { -- count++; /* the object itself */ -- } -- list_for_each(i, &obj->hardLinks) { -- count++; /* add the hard links; */ -- } -- return count; -+ if (!obj->unlinked) -+ count++; /* the object itself */ -+ -+ ylist_for_each(i, &obj->hardLinks) -+ count++; /* add the hard links; */ - -+ return count; - } - --int yaffs_GetObjectInode(yaffs_Object * obj) -+int yaffs_GetObjectInode(yaffs_Object *obj) - { - obj = yaffs_GetEquivalentObject(obj); - - return obj->objectId; - } - --unsigned yaffs_GetObjectType(yaffs_Object * obj) -+unsigned yaffs_GetObjectType(yaffs_Object *obj) - { - obj = yaffs_GetEquivalentObject(obj); - -@@ -6872,19 +6960,18 @@ unsigned yaffs_GetObjectType(yaffs_Objec - } - } - --YCHAR *yaffs_GetSymlinkAlias(yaffs_Object * obj) -+YCHAR *yaffs_GetSymlinkAlias(yaffs_Object *obj) - { - obj = yaffs_GetEquivalentObject(obj); -- if (obj->variantType == YAFFS_OBJECT_TYPE_SYMLINK) { -+ if (obj->variantType == YAFFS_OBJECT_TYPE_SYMLINK) - return yaffs_CloneString(obj->variant.symLinkVariant.alias); -- } else { -+ else - return yaffs_CloneString(_Y("")); -- } - } - - #ifndef CONFIG_YAFFS_WINCE - --int yaffs_SetAttributes(yaffs_Object * obj, struct iattr *attr) -+int yaffs_SetAttributes(yaffs_Object *obj, struct iattr *attr) - { - unsigned int valid = attr->ia_valid; - -@@ -6910,7 +6997,7 @@ int yaffs_SetAttributes(yaffs_Object * o - return YAFFS_OK; - - } --int yaffs_GetAttributes(yaffs_Object * obj, struct iattr *attr) -+int yaffs_GetAttributes(yaffs_Object *obj, struct iattr *attr) - { - unsigned int valid = 0; - -@@ -6934,13 +7021,12 @@ int yaffs_GetAttributes(yaffs_Object * o - attr->ia_valid = valid; - - return YAFFS_OK; -- - } - - #endif - - #if 0 --int yaffs_DumpObject(yaffs_Object * obj) -+int yaffs_DumpObject(yaffs_Object *obj) - { - YCHAR name[257]; - -@@ -6951,7 +7037,7 @@ int yaffs_DumpObject(yaffs_Object * obj) - ("Object %d, inode %d \"%s\"\n dirty %d valid %d serial %d sum %d" - " chunk %d type %d size %d\n" - TENDSTR), obj->objectId, yaffs_GetObjectInode(obj), name, -- obj->dirty, obj->valid, obj->serial, obj->sum, obj->chunkId, -+ obj->dirty, obj->valid, obj->serial, obj->sum, obj->hdrChunk, - yaffs_GetObjectType(obj), yaffs_GetObjectFileLength(obj))); - - return YAFFS_OK; -@@ -6960,7 +7046,7 @@ int yaffs_DumpObject(yaffs_Object * obj) - - /*---------------------------- Initialisation code -------------------------------------- */ - --static int yaffs_CheckDevFunctions(const yaffs_Device * dev) -+static int yaffs_CheckDevFunctions(const yaffs_Device *dev) - { - - /* Common functions, gotta have */ -@@ -7011,7 +7097,7 @@ static int yaffs_CreateInitialDirectorie - yaffs_CreateFakeDirectory(dev, YAFFS_OBJECTID_LOSTNFOUND, - YAFFS_LOSTNFOUND_MODE | S_IFDIR); - -- if(dev->lostNFoundDir && dev->rootDir && dev->unlinkedDir && dev->deletedDir){ -+ if (dev->lostNFoundDir && dev->rootDir && dev->unlinkedDir && dev->deletedDir) { - yaffs_AddObjectToDirectory(dev->rootDir, dev->lostNFoundDir); - return YAFFS_OK; - } -@@ -7019,7 +7105,7 @@ static int yaffs_CreateInitialDirectorie - return YAFFS_FAIL; - } - --int yaffs_GutsInitialise(yaffs_Device * dev) -+int yaffs_GutsInitialise(yaffs_Device *dev) - { - int init_failed = 0; - unsigned x; -@@ -7040,6 +7126,8 @@ int yaffs_GutsInitialise(yaffs_Device * - dev->chunkOffset = 0; - dev->nFreeChunks = 0; - -+ dev->gcBlock = -1; -+ - if (dev->startBlock == 0) { - dev->internalStartBlock = dev->startBlock + 1; - dev->internalEndBlock = dev->endBlock + 1; -@@ -7049,18 +7137,18 @@ int yaffs_GutsInitialise(yaffs_Device * - - /* Check geometry parameters. */ - -- if ((dev->isYaffs2 && dev->nDataBytesPerChunk < 1024) || -- (!dev->isYaffs2 && dev->nDataBytesPerChunk != 512) || -+ if ((!dev->inbandTags && dev->isYaffs2 && dev->totalBytesPerChunk < 1024) || -+ (!dev->isYaffs2 && dev->totalBytesPerChunk < 512) || -+ (dev->inbandTags && !dev->isYaffs2) || - dev->nChunksPerBlock < 2 || - dev->nReservedBlocks < 2 || - dev->internalStartBlock <= 0 || - dev->internalEndBlock <= 0 || -- dev->internalEndBlock <= (dev->internalStartBlock + dev->nReservedBlocks + 2) // otherwise it is too small -- ) { -+ dev->internalEndBlock <= (dev->internalStartBlock + dev->nReservedBlocks + 2)) { /* otherwise it is too small */ - T(YAFFS_TRACE_ALWAYS, - (TSTR -- ("yaffs: NAND geometry problems: chunk size %d, type is yaffs%s " -- TENDSTR), dev->nDataBytesPerChunk, dev->isYaffs2 ? "2" : "")); -+ ("yaffs: NAND geometry problems: chunk size %d, type is yaffs%s, inbandTags %d " -+ TENDSTR), dev->totalBytesPerChunk, dev->isYaffs2 ? "2" : "", dev->inbandTags)); - return YAFFS_FAIL; - } - -@@ -7070,6 +7158,12 @@ int yaffs_GutsInitialise(yaffs_Device * - return YAFFS_FAIL; - } - -+ /* Sort out space for inband tags, if required */ -+ if (dev->inbandTags) -+ dev->nDataBytesPerChunk = dev->totalBytesPerChunk - sizeof(yaffs_PackedTags2TagsPart); -+ else -+ dev->nDataBytesPerChunk = dev->totalBytesPerChunk; -+ - /* Got the right mix of functions? */ - if (!yaffs_CheckDevFunctions(dev)) { - /* Function missing */ -@@ -7097,31 +7191,18 @@ int yaffs_GutsInitialise(yaffs_Device * - - dev->isMounted = 1; - -- -- - /* OK now calculate a few things for the device */ - - /* - * Calculate all the chunk size manipulation numbers: - */ -- /* Start off assuming it is a power of 2 */ -- dev->chunkShift = ShiftDiv(dev->nDataBytesPerChunk); -- dev->chunkMask = (1<chunkShift) - 1; -- -- if(dev->nDataBytesPerChunk == (dev->chunkMask + 1)){ -- /* Yes it is a power of 2, disable crumbs */ -- dev->crumbMask = 0; -- dev->crumbShift = 0; -- dev->crumbsPerChunk = 0; -- } else { -- /* Not a power of 2, use crumbs instead */ -- dev->crumbShift = ShiftDiv(sizeof(yaffs_PackedTags2TagsPart)); -- dev->crumbMask = (1<crumbShift)-1; -- dev->crumbsPerChunk = dev->nDataBytesPerChunk/(1 << dev->crumbShift); -- dev->chunkShift = 0; -- dev->chunkMask = 0; -- } -- -+ x = dev->nDataBytesPerChunk; -+ /* We always use dev->chunkShift and dev->chunkDiv */ -+ dev->chunkShift = Shifts(x); -+ x >>= dev->chunkShift; -+ dev->chunkDiv = x; -+ /* We only use chunk mask if chunkDiv is 1 */ -+ dev->chunkMask = (1<chunkShift) - 1; - - /* - * Calculate chunkGroupBits. -@@ -7133,16 +7214,15 @@ int yaffs_GutsInitialise(yaffs_Device * - bits = ShiftsGE(x); - - /* Set up tnode width if wide tnodes are enabled. */ -- if(!dev->wideTnodesDisabled){ -+ if (!dev->wideTnodesDisabled) { - /* bits must be even so that we end up with 32-bit words */ -- if(bits & 1) -+ if (bits & 1) - bits++; -- if(bits < 16) -+ if (bits < 16) - dev->tnodeWidth = 16; - else - dev->tnodeWidth = bits; -- } -- else -+ } else - dev->tnodeWidth = 16; - - dev->tnodeMask = (1<tnodeWidth)-1; -@@ -7193,7 +7273,7 @@ int yaffs_GutsInitialise(yaffs_Device * - dev->hasPendingPrioritisedGCs = 1; /* Assume the worst for now, will get fixed on first GC */ - - /* Initialise temporary buffers and caches. */ -- if(!yaffs_InitialiseTempBuffers(dev)) -+ if (!yaffs_InitialiseTempBuffers(dev)) - init_failed = 1; - - dev->srCache = NULL; -@@ -7203,25 +7283,26 @@ int yaffs_GutsInitialise(yaffs_Device * - if (!init_failed && - dev->nShortOpCaches > 0) { - int i; -- __u8 *buf; -+ void *buf; - int srCacheBytes = dev->nShortOpCaches * sizeof(yaffs_ChunkCache); - -- if (dev->nShortOpCaches > YAFFS_MAX_SHORT_OP_CACHES) { -+ if (dev->nShortOpCaches > YAFFS_MAX_SHORT_OP_CACHES) - dev->nShortOpCaches = YAFFS_MAX_SHORT_OP_CACHES; -- } - -- buf = dev->srCache = YMALLOC(srCacheBytes); -+ dev->srCache = YMALLOC(srCacheBytes); - -- if(dev->srCache) -- memset(dev->srCache,0,srCacheBytes); -+ buf = (__u8 *) dev->srCache; -+ -+ if (dev->srCache) -+ memset(dev->srCache, 0, srCacheBytes); - - for (i = 0; i < dev->nShortOpCaches && buf; i++) { - dev->srCache[i].object = NULL; - dev->srCache[i].lastUse = 0; - dev->srCache[i].dirty = 0; -- dev->srCache[i].data = buf = YMALLOC_DMA(dev->nDataBytesPerChunk); -+ dev->srCache[i].data = buf = YMALLOC_DMA(dev->totalBytesPerChunk); - } -- if(!buf) -+ if (!buf) - init_failed = 1; - - dev->srLastUse = 0; -@@ -7229,29 +7310,30 @@ int yaffs_GutsInitialise(yaffs_Device * - - dev->cacheHits = 0; - -- if(!init_failed){ -+ if (!init_failed) { - dev->gcCleanupList = YMALLOC(dev->nChunksPerBlock * sizeof(__u32)); -- if(!dev->gcCleanupList) -+ if (!dev->gcCleanupList) - init_failed = 1; - } - -- if (dev->isYaffs2) { -+ if (dev->isYaffs2) - dev->useHeaderFileSize = 1; -- } -- if(!init_failed && !yaffs_InitialiseBlocks(dev)) -+ -+ if (!init_failed && !yaffs_InitialiseBlocks(dev)) - init_failed = 1; - - yaffs_InitialiseTnodes(dev); - yaffs_InitialiseObjects(dev); - -- if(!init_failed && !yaffs_CreateInitialDirectories(dev)) -+ if (!init_failed && !yaffs_CreateInitialDirectories(dev)) - init_failed = 1; - - -- if(!init_failed){ -+ if (!init_failed) { - /* Now scan the flash. */ - if (dev->isYaffs2) { -- if(yaffs_CheckpointRestore(dev)) { -+ if (yaffs_CheckpointRestore(dev)) { -+ yaffs_CheckObjectDetailsLoaded(dev->rootDir); - T(YAFFS_TRACE_ALWAYS, - (TSTR("yaffs: restored from checkpoint" TENDSTR))); - } else { -@@ -7273,24 +7355,25 @@ int yaffs_GutsInitialise(yaffs_Device * - dev->nBackgroundDeletions = 0; - dev->oldestDirtySequence = 0; - -- if(!init_failed && !yaffs_InitialiseBlocks(dev)) -+ if (!init_failed && !yaffs_InitialiseBlocks(dev)) - init_failed = 1; - - yaffs_InitialiseTnodes(dev); - yaffs_InitialiseObjects(dev); - -- if(!init_failed && !yaffs_CreateInitialDirectories(dev)) -+ if (!init_failed && !yaffs_CreateInitialDirectories(dev)) - init_failed = 1; - -- if(!init_failed && !yaffs_ScanBackwards(dev)) -+ if (!init_failed && !yaffs_ScanBackwards(dev)) - init_failed = 1; - } -- }else -- if(!yaffs_Scan(dev)) -+ } else if (!yaffs_Scan(dev)) - init_failed = 1; -+ -+ yaffs_StripDeletedObjects(dev); - } - -- if(init_failed){ -+ if (init_failed) { - /* Clean up the mess */ - T(YAFFS_TRACE_TRACING, - (TSTR("yaffs: yaffs_GutsInitialise() aborted.\n" TENDSTR))); -@@ -7318,7 +7401,7 @@ int yaffs_GutsInitialise(yaffs_Device * - - } - --void yaffs_Deinitialise(yaffs_Device * dev) -+void yaffs_Deinitialise(yaffs_Device *dev) - { - if (dev->isMounted) { - int i; -@@ -7330,7 +7413,7 @@ void yaffs_Deinitialise(yaffs_Device * d - dev->srCache) { - - for (i = 0; i < dev->nShortOpCaches; i++) { -- if(dev->srCache[i].data) -+ if (dev->srCache[i].data) - YFREE(dev->srCache[i].data); - dev->srCache[i].data = NULL; - } -@@ -7341,16 +7424,17 @@ void yaffs_Deinitialise(yaffs_Device * d - - YFREE(dev->gcCleanupList); - -- for (i = 0; i < YAFFS_N_TEMP_BUFFERS; i++) { -+ for (i = 0; i < YAFFS_N_TEMP_BUFFERS; i++) - YFREE(dev->tempBuffer[i].buffer); -- } - - dev->isMounted = 0; -- } - -+ if (dev->deinitialiseNAND) -+ dev->deinitialiseNAND(dev); -+ } - } - --static int yaffs_CountFreeChunks(yaffs_Device * dev) -+static int yaffs_CountFreeChunks(yaffs_Device *dev) - { - int nFree; - int b; -@@ -7358,7 +7442,7 @@ static int yaffs_CountFreeChunks(yaffs_D - yaffs_BlockInfo *blk; - - for (nFree = 0, b = dev->internalStartBlock; b <= dev->internalEndBlock; -- b++) { -+ b++) { - blk = yaffs_GetBlockInfo(dev, b); - - switch (blk->blockState) { -@@ -7373,19 +7457,19 @@ static int yaffs_CountFreeChunks(yaffs_D - default: - break; - } -- - } - - return nFree; - } - --int yaffs_GetNumberOfFreeChunks(yaffs_Device * dev) -+int yaffs_GetNumberOfFreeChunks(yaffs_Device *dev) - { - /* This is what we report to the outside world */ - - int nFree; - int nDirtyCacheChunks; - int blocksForCheckpoint; -+ int i; - - #if 1 - nFree = dev->nFreeChunks; -@@ -7397,12 +7481,9 @@ int yaffs_GetNumberOfFreeChunks(yaffs_De - - /* Now count the number of dirty chunks in the cache and subtract those */ - -- { -- int i; -- for (nDirtyCacheChunks = 0, i = 0; i < dev->nShortOpCaches; i++) { -- if (dev->srCache[i].dirty) -- nDirtyCacheChunks++; -- } -+ for (nDirtyCacheChunks = 0, i = 0; i < dev->nShortOpCaches; i++) { -+ if (dev->srCache[i].dirty) -+ nDirtyCacheChunks++; - } - - nFree -= nDirtyCacheChunks; -@@ -7410,8 +7491,8 @@ int yaffs_GetNumberOfFreeChunks(yaffs_De - nFree -= ((dev->nReservedBlocks + 1) * dev->nChunksPerBlock); - - /* Now we figure out how much to reserve for the checkpoint and report that... */ -- blocksForCheckpoint = dev->nCheckpointReservedBlocks - dev->blocksInCheckpoint; -- if(blocksForCheckpoint < 0) -+ blocksForCheckpoint = yaffs_CalcCheckpointBlocksRequired(dev) - dev->blocksInCheckpoint; -+ if (blocksForCheckpoint < 0) - blocksForCheckpoint = 0; - - nFree -= (blocksForCheckpoint * dev->nChunksPerBlock); -@@ -7425,12 +7506,12 @@ int yaffs_GetNumberOfFreeChunks(yaffs_De - - static int yaffs_freeVerificationFailures; - --static void yaffs_VerifyFreeChunks(yaffs_Device * dev) -+static void yaffs_VerifyFreeChunks(yaffs_Device *dev) - { - int counted; - int difference; - -- if(yaffs_SkipVerification(dev)) -+ if (yaffs_SkipVerification(dev)) - return; - - counted = yaffs_CountFreeChunks(dev); -@@ -7447,23 +7528,25 @@ static void yaffs_VerifyFreeChunks(yaffs - - /*---------------------------------------- YAFFS test code ----------------------*/ - --#define yaffs_CheckStruct(structure,syze, name) \ -- if(sizeof(structure) != syze) \ -- { \ -- T(YAFFS_TRACE_ALWAYS,(TSTR("%s should be %d but is %d\n" TENDSTR),\ -- name,syze,sizeof(structure))); \ -- return YAFFS_FAIL; \ -- } -+#define yaffs_CheckStruct(structure, syze, name) \ -+ do { \ -+ if (sizeof(structure) != syze) { \ -+ T(YAFFS_TRACE_ALWAYS, (TSTR("%s should be %d but is %d\n" TENDSTR),\ -+ name, syze, sizeof(structure))); \ -+ return YAFFS_FAIL; \ -+ } \ -+ } while (0) - - static int yaffs_CheckStructures(void) - { --/* yaffs_CheckStruct(yaffs_Tags,8,"yaffs_Tags") */ --/* yaffs_CheckStruct(yaffs_TagsUnion,8,"yaffs_TagsUnion") */ --/* yaffs_CheckStruct(yaffs_Spare,16,"yaffs_Spare") */ -+/* yaffs_CheckStruct(yaffs_Tags,8,"yaffs_Tags"); */ -+/* yaffs_CheckStruct(yaffs_TagsUnion,8,"yaffs_TagsUnion"); */ -+/* yaffs_CheckStruct(yaffs_Spare,16,"yaffs_Spare"); */ - #ifndef CONFIG_YAFFS_TNODE_LIST_DEBUG -- yaffs_CheckStruct(yaffs_Tnode, 2 * YAFFS_NTNODES_LEVEL0, "yaffs_Tnode") -+ yaffs_CheckStruct(yaffs_Tnode, 2 * YAFFS_NTNODES_LEVEL0, "yaffs_Tnode"); - #endif -- yaffs_CheckStruct(yaffs_ObjectHeader, 512, "yaffs_ObjectHeader") -- -- return YAFFS_OK; -+#ifndef CONFIG_YAFFS_WINCE -+ yaffs_CheckStruct(yaffs_ObjectHeader, 512, "yaffs_ObjectHeader"); -+#endif -+ return YAFFS_OK; - } ---- a/fs/yaffs2/yaffs_guts.h -+++ b/fs/yaffs2/yaffs_guts.h -@@ -90,7 +90,7 @@ - - #define YAFFS_MAX_SHORT_OP_CACHES 20 - --#define YAFFS_N_TEMP_BUFFERS 4 -+#define YAFFS_N_TEMP_BUFFERS 6 - - /* We limit the number attempts at sucessfully saving a chunk of data. - * Small-page devices have 32 pages per block; large-page devices have 64. -@@ -108,6 +108,9 @@ - #define YAFFS_LOWEST_SEQUENCE_NUMBER 0x00001000 - #define YAFFS_HIGHEST_SEQUENCE_NUMBER 0xEFFFFF00 - -+/* Special sequence number for bad block that failed to be marked bad */ -+#define YAFFS_SEQUENCE_BAD_BLOCK 0xFFFF0000 -+ - /* ChunkCache is used for short read/write operations.*/ - typedef struct { - struct yaffs_ObjectStruct *object; -@@ -134,11 +137,10 @@ typedef struct { - typedef struct { - unsigned chunkId:20; - unsigned serialNumber:2; -- unsigned byteCount:10; -+ unsigned byteCountLSB:10; - unsigned objectId:18; - unsigned ecc:12; -- unsigned unusedStuff:2; -- -+ unsigned byteCountMSB:2; - } yaffs_Tags; - - typedef union { -@@ -277,13 +279,13 @@ typedef struct { - - int softDeletions:10; /* number of soft deleted pages */ - int pagesInUse:10; /* number of pages in use */ -- yaffs_BlockState blockState:4; /* One of the above block states */ -+ unsigned blockState:4; /* One of the above block states. NB use unsigned because enum is sometimes an int */ - __u32 needsRetiring:1; /* Data has failed on this block, need to get valid data off */ -- /* and retire the block. */ -- __u32 skipErasedCheck: 1; /* If this is set we can skip the erased check on this block */ -- __u32 gcPrioritise: 1; /* An ECC check or blank check has failed on this block. -+ /* and retire the block. */ -+ __u32 skipErasedCheck:1; /* If this is set we can skip the erased check on this block */ -+ __u32 gcPrioritise:1; /* An ECC check or blank check has failed on this block. - It should be prioritised for GC */ -- __u32 chunkErrorStrikes:3; /* How many times we've had ecc etc failures on this block and tried to reuse it */ -+ __u32 chunkErrorStrikes:3; /* How many times we've had ecc etc failures on this block and tried to reuse it */ - - #ifdef CONFIG_YAFFS_YAFFS2 - __u32 hasShrinkHeader:1; /* This block has at least one shrink object header */ -@@ -300,11 +302,11 @@ typedef struct { - - /* Apply to everything */ - int parentObjectId; -- __u16 sum__NoLongerUsed; /* checksum of name. No longer used */ -+ __u16 sum__NoLongerUsed; /* checksum of name. No longer used */ - YCHAR name[YAFFS_MAX_NAME_LENGTH + 1]; - -- /* Thes following apply to directories, files, symlinks - not hard links */ -- __u32 yst_mode; /* protection */ -+ /* The following apply to directories, files, symlinks - not hard links */ -+ __u32 yst_mode; /* protection */ - - #ifdef CONFIG_YAFFS_WINCE - __u32 notForWinCE[5]; -@@ -331,11 +333,14 @@ typedef struct { - __u32 win_ctime[2]; - __u32 win_atime[2]; - __u32 win_mtime[2]; -- __u32 roomToGrow[4]; - #else -- __u32 roomToGrow[10]; -+ __u32 roomToGrow[6]; -+ - #endif -+ __u32 inbandShadowsObject; -+ __u32 inbandIsShrink; - -+ __u32 reservedSpace[2]; - int shadowsObject; /* This object header shadows the specified object if > 0 */ - - /* isShrink applies to object headers written when we shrink the file (ie resize) */ -@@ -381,7 +386,7 @@ typedef struct { - } yaffs_FileStructure; - - typedef struct { -- struct list_head children; /* list of child links */ -+ struct ylist_head children; /* list of child links */ - } yaffs_DirectoryStructure; - - typedef struct { -@@ -418,23 +423,24 @@ struct yaffs_ObjectStruct { - * still in the inode cache. Free of object is defered. - * until the inode is released. - */ -+ __u8 beingCreated:1; /* This object is still being created so skip some checks. */ - - __u8 serial; /* serial number of chunk in NAND. Cached here */ - __u16 sum; /* sum of the name to speed searching */ - -- struct yaffs_DeviceStruct *myDev; /* The device I'm on */ -+ struct yaffs_DeviceStruct *myDev; /* The device I'm on */ - -- struct list_head hashLink; /* list of objects in this hash bucket */ -+ struct ylist_head hashLink; /* list of objects in this hash bucket */ - -- struct list_head hardLinks; /* all the equivalent hard linked objects */ -+ struct ylist_head hardLinks; /* all the equivalent hard linked objects */ - - /* directory structure stuff */ - /* also used for linking up the free list */ - struct yaffs_ObjectStruct *parent; -- struct list_head siblings; -+ struct ylist_head siblings; - - /* Where's my object header in NAND? */ -- int chunkId; -+ int hdrChunk; - - int nDataChunks; /* Number of data chunks attached to the file. */ - -@@ -485,7 +491,7 @@ struct yaffs_ObjectList_struct { - typedef struct yaffs_ObjectList_struct yaffs_ObjectList; - - typedef struct { -- struct list_head list; -+ struct ylist_head list; - int count; - } yaffs_ObjectBucket; - -@@ -495,11 +501,10 @@ typedef struct { - */ - - typedef struct { -- int structType; -+ int structType; - __u32 objectId; - __u32 parentId; -- int chunkId; -- -+ int hdrChunk; - yaffs_ObjectType variantType:3; - __u8 deleted:1; - __u8 softDeleted:1; -@@ -511,8 +516,7 @@ typedef struct { - - int nDataChunks; - __u32 fileSizeOrEquivalentObjectId; -- --}yaffs_CheckpointObject; -+} yaffs_CheckpointObject; - - /*--------------------- Temporary buffers ---------------- - * -@@ -528,13 +532,13 @@ typedef struct { - /*----------------- Device ---------------------------------*/ - - struct yaffs_DeviceStruct { -- struct list_head devList; -+ struct ylist_head devList; - const char *name; - - /* Entry parameters set up way early. Yaffs sets up the rest.*/ - int nDataBytesPerChunk; /* Should be a power of 2 >= 512 */ - int nChunksPerBlock; /* does not need to be a power of 2 */ -- int nBytesPerSpare; /* spare area size */ -+ int spareBytesPerChunk; /* spare area size */ - int startBlock; /* Start block we're allowed to use */ - int endBlock; /* End block we're allowed to use */ - int nReservedBlocks; /* We want this tuneable so that we can reduce */ -@@ -544,9 +548,7 @@ struct yaffs_DeviceStruct { - /* Stuff used by the shared space checkpointing mechanism */ - /* If this value is zero, then this mechanism is disabled */ - -- int nCheckpointReservedBlocks; /* Blocks to reserve for checkpoint data */ -- -- -+/* int nCheckpointReservedBlocks; */ /* Blocks to reserve for checkpoint data */ - - - int nShortOpCaches; /* If <= 0, then short op caching is disabled, else -@@ -560,30 +562,31 @@ struct yaffs_DeviceStruct { - void *genericDevice; /* Pointer to device context - * On an mtd this holds the mtd pointer. - */ -- void *superBlock; -+ void *superBlock; - - /* NAND access functions (Must be set before calling YAFFS)*/ - -- int (*writeChunkToNAND) (struct yaffs_DeviceStruct * dev, -- int chunkInNAND, const __u8 * data, -- const yaffs_Spare * spare); -- int (*readChunkFromNAND) (struct yaffs_DeviceStruct * dev, -- int chunkInNAND, __u8 * data, -- yaffs_Spare * spare); -- int (*eraseBlockInNAND) (struct yaffs_DeviceStruct * dev, -- int blockInNAND); -- int (*initialiseNAND) (struct yaffs_DeviceStruct * dev); -+ int (*writeChunkToNAND) (struct yaffs_DeviceStruct *dev, -+ int chunkInNAND, const __u8 *data, -+ const yaffs_Spare *spare); -+ int (*readChunkFromNAND) (struct yaffs_DeviceStruct *dev, -+ int chunkInNAND, __u8 *data, -+ yaffs_Spare *spare); -+ int (*eraseBlockInNAND) (struct yaffs_DeviceStruct *dev, -+ int blockInNAND); -+ int (*initialiseNAND) (struct yaffs_DeviceStruct *dev); -+ int (*deinitialiseNAND) (struct yaffs_DeviceStruct *dev); - - #ifdef CONFIG_YAFFS_YAFFS2 -- int (*writeChunkWithTagsToNAND) (struct yaffs_DeviceStruct * dev, -- int chunkInNAND, const __u8 * data, -- const yaffs_ExtendedTags * tags); -- int (*readChunkWithTagsFromNAND) (struct yaffs_DeviceStruct * dev, -- int chunkInNAND, __u8 * data, -- yaffs_ExtendedTags * tags); -- int (*markNANDBlockBad) (struct yaffs_DeviceStruct * dev, int blockNo); -- int (*queryNANDBlock) (struct yaffs_DeviceStruct * dev, int blockNo, -- yaffs_BlockState * state, int *sequenceNumber); -+ int (*writeChunkWithTagsToNAND) (struct yaffs_DeviceStruct *dev, -+ int chunkInNAND, const __u8 *data, -+ const yaffs_ExtendedTags *tags); -+ int (*readChunkWithTagsFromNAND) (struct yaffs_DeviceStruct *dev, -+ int chunkInNAND, __u8 *data, -+ yaffs_ExtendedTags *tags); -+ int (*markNANDBlockBad) (struct yaffs_DeviceStruct *dev, int blockNo); -+ int (*queryNANDBlock) (struct yaffs_DeviceStruct *dev, int blockNo, -+ yaffs_BlockState *state, __u32 *sequenceNumber); - #endif - - int isYaffs2; -@@ -595,10 +598,12 @@ struct yaffs_DeviceStruct { - void (*removeObjectCallback)(struct yaffs_ObjectStruct *obj); - - /* Callback to mark the superblock dirsty */ -- void (*markSuperBlockDirty)(void * superblock); -+ void (*markSuperBlockDirty)(void *superblock); - - int wideTnodesDisabled; /* Set to disable wide tnodes */ - -+ YCHAR *pathDividers; /* String of legal path dividers */ -+ - - /* End of stuff that must be set before initialisation. */ - -@@ -615,16 +620,14 @@ struct yaffs_DeviceStruct { - __u32 tnodeWidth; - __u32 tnodeMask; - -- /* Stuff to support various file offses to chunk/offset translations */ -- /* "Crumbs" for nDataBytesPerChunk not being a power of 2 */ -- __u32 crumbMask; -- __u32 crumbShift; -- __u32 crumbsPerChunk; -- -- /* Straight shifting for nDataBytesPerChunk being a power of 2 */ -- __u32 chunkShift; -- __u32 chunkMask; -- -+ /* Stuff for figuring out file offset to chunk conversions */ -+ __u32 chunkShift; /* Shift value */ -+ __u32 chunkDiv; /* Divisor after shifting: 1 for power-of-2 sizes */ -+ __u32 chunkMask; /* Mask to use for power-of-2 case */ -+ -+ /* Stuff to handle inband tags */ -+ int inbandTags; -+ __u32 totalBytesPerChunk; - - #ifdef __KERNEL__ - -@@ -633,7 +636,7 @@ struct yaffs_DeviceStruct { - __u8 *spareBuffer; /* For mtdif2 use. Don't know the size of the buffer - * at compile time so we have to allocate it. - */ -- void (*putSuperFunc) (struct super_block * sb); -+ void (*putSuperFunc) (struct super_block *sb); - #endif - - int isMounted; -@@ -663,6 +666,8 @@ struct yaffs_DeviceStruct { - __u32 checkpointSum; - __u32 checkpointXor; - -+ int nCheckpointBlocksRequired; /* Number of blocks needed to store current checkpoint set */ -+ - /* Block Info */ - yaffs_BlockInfo *blockInfo; - __u8 *chunkBits; /* bitmap of chunks in use */ -@@ -684,11 +689,15 @@ struct yaffs_DeviceStruct { - yaffs_TnodeList *allocatedTnodeList; - - int isDoingGC; -+ int gcBlock; -+ int gcChunk; - - int nObjectsCreated; - yaffs_Object *freeObjects; - int nFreeObjects; - -+ int nHardLinks; -+ - yaffs_ObjectList *allocatedObjectList; - - yaffs_ObjectBucket objectBucket[YAFFS_NOBJECT_BUCKETS]; -@@ -745,8 +754,10 @@ struct yaffs_DeviceStruct { - int nBackgroundDeletions; /* Count of background deletions. */ - - -+ /* Temporary buffer management */ - yaffs_TempBuffer tempBuffer[YAFFS_N_TEMP_BUFFERS]; - int maxTemp; -+ int tempInUse; - int unmanagedTempAllocations; - int unmanagedTempDeallocations; - -@@ -758,9 +769,9 @@ struct yaffs_DeviceStruct { - - typedef struct yaffs_DeviceStruct yaffs_Device; - --/* The static layout of bllock usage etc is stored in the super block header */ -+/* The static layout of block usage etc is stored in the super block header */ - typedef struct { -- int StructType; -+ int StructType; - int version; - int checkpointStartBlock; - int checkpointEndBlock; -@@ -773,7 +784,7 @@ typedef struct { - * must be preserved over unmount/mount cycles. - */ - typedef struct { -- int structType; -+ int structType; - int nErasedBlocks; - int allocationBlock; /* Current block being allocated off */ - __u32 allocationPage; -@@ -791,57 +802,45 @@ typedef struct { - - - typedef struct { -- int structType; -- __u32 magic; -- __u32 version; -- __u32 head; -+ int structType; -+ __u32 magic; -+ __u32 version; -+ __u32 head; - } yaffs_CheckpointValidity; - --/* Function to manipulate block info */ --static Y_INLINE yaffs_BlockInfo *yaffs_GetBlockInfo(yaffs_Device * dev, int blk) --{ -- if (blk < dev->internalStartBlock || blk > dev->internalEndBlock) { -- T(YAFFS_TRACE_ERROR, -- (TSTR -- ("**>> yaffs: getBlockInfo block %d is not valid" TENDSTR), -- blk)); -- YBUG(); -- } -- return &dev->blockInfo[blk - dev->internalStartBlock]; --} - - /*----------------------- YAFFS Functions -----------------------*/ - --int yaffs_GutsInitialise(yaffs_Device * dev); --void yaffs_Deinitialise(yaffs_Device * dev); -+int yaffs_GutsInitialise(yaffs_Device *dev); -+void yaffs_Deinitialise(yaffs_Device *dev); - --int yaffs_GetNumberOfFreeChunks(yaffs_Device * dev); -+int yaffs_GetNumberOfFreeChunks(yaffs_Device *dev); - --int yaffs_RenameObject(yaffs_Object * oldDir, const YCHAR * oldName, -- yaffs_Object * newDir, const YCHAR * newName); -+int yaffs_RenameObject(yaffs_Object *oldDir, const YCHAR *oldName, -+ yaffs_Object *newDir, const YCHAR *newName); - --int yaffs_Unlink(yaffs_Object * dir, const YCHAR * name); --int yaffs_DeleteFile(yaffs_Object * obj); -+int yaffs_Unlink(yaffs_Object *dir, const YCHAR *name); -+int yaffs_DeleteObject(yaffs_Object *obj); - --int yaffs_GetObjectName(yaffs_Object * obj, YCHAR * name, int buffSize); --int yaffs_GetObjectFileLength(yaffs_Object * obj); --int yaffs_GetObjectInode(yaffs_Object * obj); --unsigned yaffs_GetObjectType(yaffs_Object * obj); --int yaffs_GetObjectLinkCount(yaffs_Object * obj); -+int yaffs_GetObjectName(yaffs_Object *obj, YCHAR *name, int buffSize); -+int yaffs_GetObjectFileLength(yaffs_Object *obj); -+int yaffs_GetObjectInode(yaffs_Object *obj); -+unsigned yaffs_GetObjectType(yaffs_Object *obj); -+int yaffs_GetObjectLinkCount(yaffs_Object *obj); - --int yaffs_SetAttributes(yaffs_Object * obj, struct iattr *attr); --int yaffs_GetAttributes(yaffs_Object * obj, struct iattr *attr); -+int yaffs_SetAttributes(yaffs_Object *obj, struct iattr *attr); -+int yaffs_GetAttributes(yaffs_Object *obj, struct iattr *attr); - - /* File operations */ --int yaffs_ReadDataFromFile(yaffs_Object * obj, __u8 * buffer, loff_t offset, -- int nBytes); --int yaffs_WriteDataToFile(yaffs_Object * obj, const __u8 * buffer, loff_t offset, -- int nBytes, int writeThrough); --int yaffs_ResizeFile(yaffs_Object * obj, loff_t newSize); -- --yaffs_Object *yaffs_MknodFile(yaffs_Object * parent, const YCHAR * name, -- __u32 mode, __u32 uid, __u32 gid); --int yaffs_FlushFile(yaffs_Object * obj, int updateTime); -+int yaffs_ReadDataFromFile(yaffs_Object *obj, __u8 *buffer, loff_t offset, -+ int nBytes); -+int yaffs_WriteDataToFile(yaffs_Object *obj, const __u8 *buffer, loff_t offset, -+ int nBytes, int writeThrough); -+int yaffs_ResizeFile(yaffs_Object *obj, loff_t newSize); -+ -+yaffs_Object *yaffs_MknodFile(yaffs_Object *parent, const YCHAR *name, -+ __u32 mode, __u32 uid, __u32 gid); -+int yaffs_FlushFile(yaffs_Object *obj, int updateTime); - - /* Flushing and checkpointing */ - void yaffs_FlushEntireDeviceCache(yaffs_Device *dev); -@@ -850,33 +849,33 @@ int yaffs_CheckpointSave(yaffs_Device *d - int yaffs_CheckpointRestore(yaffs_Device *dev); - - /* Directory operations */ --yaffs_Object *yaffs_MknodDirectory(yaffs_Object * parent, const YCHAR * name, -- __u32 mode, __u32 uid, __u32 gid); --yaffs_Object *yaffs_FindObjectByName(yaffs_Object * theDir, const YCHAR * name); --int yaffs_ApplyToDirectoryChildren(yaffs_Object * theDir, -+yaffs_Object *yaffs_MknodDirectory(yaffs_Object *parent, const YCHAR *name, -+ __u32 mode, __u32 uid, __u32 gid); -+yaffs_Object *yaffs_FindObjectByName(yaffs_Object *theDir, const YCHAR *name); -+int yaffs_ApplyToDirectoryChildren(yaffs_Object *theDir, - int (*fn) (yaffs_Object *)); - --yaffs_Object *yaffs_FindObjectByNumber(yaffs_Device * dev, __u32 number); -+yaffs_Object *yaffs_FindObjectByNumber(yaffs_Device *dev, __u32 number); - - /* Link operations */ --yaffs_Object *yaffs_Link(yaffs_Object * parent, const YCHAR * name, -- yaffs_Object * equivalentObject); -+yaffs_Object *yaffs_Link(yaffs_Object *parent, const YCHAR *name, -+ yaffs_Object *equivalentObject); - --yaffs_Object *yaffs_GetEquivalentObject(yaffs_Object * obj); -+yaffs_Object *yaffs_GetEquivalentObject(yaffs_Object *obj); - - /* Symlink operations */ --yaffs_Object *yaffs_MknodSymLink(yaffs_Object * parent, const YCHAR * name, -+yaffs_Object *yaffs_MknodSymLink(yaffs_Object *parent, const YCHAR *name, - __u32 mode, __u32 uid, __u32 gid, -- const YCHAR * alias); --YCHAR *yaffs_GetSymlinkAlias(yaffs_Object * obj); -+ const YCHAR *alias); -+YCHAR *yaffs_GetSymlinkAlias(yaffs_Object *obj); - - /* Special inodes (fifos, sockets and devices) */ --yaffs_Object *yaffs_MknodSpecial(yaffs_Object * parent, const YCHAR * name, -+yaffs_Object *yaffs_MknodSpecial(yaffs_Object *parent, const YCHAR *name, - __u32 mode, __u32 uid, __u32 gid, __u32 rdev); - - /* Special directories */ --yaffs_Object *yaffs_Root(yaffs_Device * dev); --yaffs_Object *yaffs_LostNFound(yaffs_Device * dev); -+yaffs_Object *yaffs_Root(yaffs_Device *dev); -+yaffs_Object *yaffs_LostNFound(yaffs_Device *dev); - - #ifdef CONFIG_YAFFS_WINCE - /* CONFIG_YAFFS_WINCE special stuff */ -@@ -885,18 +884,21 @@ void yfsd_WinFileTimeNow(__u32 target[2] - - #ifdef __KERNEL__ - --void yaffs_HandleDeferedFree(yaffs_Object * obj); -+void yaffs_HandleDeferedFree(yaffs_Object *obj); - #endif - - /* Debug dump */ --int yaffs_DumpObject(yaffs_Object * obj); -+int yaffs_DumpObject(yaffs_Object *obj); - --void yaffs_GutsTest(yaffs_Device * dev); -+void yaffs_GutsTest(yaffs_Device *dev); - - /* A few useful functions */ --void yaffs_InitialiseTags(yaffs_ExtendedTags * tags); --void yaffs_DeleteChunk(yaffs_Device * dev, int chunkId, int markNAND, int lyn); --int yaffs_CheckFF(__u8 * buffer, int nBytes); -+void yaffs_InitialiseTags(yaffs_ExtendedTags *tags); -+void yaffs_DeleteChunk(yaffs_Device *dev, int chunkId, int markNAND, int lyn); -+int yaffs_CheckFF(__u8 *buffer, int nBytes); - void yaffs_HandleChunkError(yaffs_Device *dev, yaffs_BlockInfo *bi); - -+__u8 *yaffs_GetTempBuffer(yaffs_Device *dev, int lineNo); -+void yaffs_ReleaseTempBuffer(yaffs_Device *dev, __u8 *buffer, int lineNo); -+ - #endif ---- a/fs/yaffs2/yaffs_mtdif1.c -+++ b/fs/yaffs2/yaffs_mtdif1.c -@@ -26,7 +26,7 @@ - #include "yportenv.h" - #include "yaffs_guts.h" - #include "yaffs_packedtags1.h" --#include "yaffs_tagscompat.h" // for yaffs_CalcTagsECC -+#include "yaffs_tagscompat.h" /* for yaffs_CalcTagsECC */ - - #include "linux/kernel.h" - #include "linux/version.h" -@@ -34,9 +34,9 @@ - #include "linux/mtd/mtd.h" - - /* Don't compile this module if we don't have MTD's mtd_oob_ops interface */ --#if (LINUX_VERSION_CODE > KERNEL_VERSION(2,6,17)) -+#if (MTD_VERSION_CODE > MTD_VERSION(2, 6, 17)) - --const char *yaffs_mtdif1_c_version = "$Id: yaffs_mtdif1.c,v 1.3 2007/05/15 20:16:11 ian Exp $"; -+const char *yaffs_mtdif1_c_version = "$Id: yaffs_mtdif1.c,v 1.10 2009-03-09 07:41:10 charles Exp $"; - - #ifndef CONFIG_YAFFS_9BYTE_TAGS - # define YTAG1_SIZE 8 -@@ -89,9 +89,9 @@ static struct nand_ecclayout nand_oob_16 - * Returns YAFFS_OK or YAFFS_FAIL. - */ - int nandmtd1_WriteChunkWithTagsToNAND(yaffs_Device *dev, -- int chunkInNAND, const __u8 * data, const yaffs_ExtendedTags * etags) -+ int chunkInNAND, const __u8 *data, const yaffs_ExtendedTags *etags) - { -- struct mtd_info * mtd = dev->genericDevice; -+ struct mtd_info *mtd = dev->genericDevice; - int chunkBytes = dev->nDataBytesPerChunk; - loff_t addr = ((loff_t)chunkInNAND) * chunkBytes; - struct mtd_oob_ops ops; -@@ -146,7 +146,7 @@ int nandmtd1_WriteChunkWithTagsToNAND(ya - - /* Return with empty ExtendedTags but add eccResult. - */ --static int rettags(yaffs_ExtendedTags * etags, int eccResult, int retval) -+static int rettags(yaffs_ExtendedTags *etags, int eccResult, int retval) - { - if (etags) { - memset(etags, 0, sizeof(*etags)); -@@ -169,9 +169,9 @@ static int rettags(yaffs_ExtendedTags * - * Returns YAFFS_OK or YAFFS_FAIL. - */ - int nandmtd1_ReadChunkWithTagsFromNAND(yaffs_Device *dev, -- int chunkInNAND, __u8 * data, yaffs_ExtendedTags * etags) -+ int chunkInNAND, __u8 *data, yaffs_ExtendedTags *etags) - { -- struct mtd_info * mtd = dev->genericDevice; -+ struct mtd_info *mtd = dev->genericDevice; - int chunkBytes = dev->nDataBytesPerChunk; - loff_t addr = ((loff_t)chunkInNAND) * chunkBytes; - int eccres = YAFFS_ECC_RESULT_NO_ERROR; -@@ -189,7 +189,7 @@ int nandmtd1_ReadChunkWithTagsFromNAND(y - ops.datbuf = data; - ops.oobbuf = (__u8 *)&pt1; - --#if (LINUX_VERSION_CODE < KERNEL_VERSION(2,6,20)) -+#if (MTD_VERSION_CODE < MTD_VERSION(2, 6, 20)) - /* In MTD 2.6.18 to 2.6.19 nand_base.c:nand_do_read_oob() has a bug; - * help it out with ops.len = ops.ooblen when ops.datbuf == NULL. - */ -@@ -284,11 +284,11 @@ int nandmtd1_ReadChunkWithTagsFromNAND(y - */ - int nandmtd1_MarkNANDBlockBad(struct yaffs_DeviceStruct *dev, int blockNo) - { -- struct mtd_info * mtd = dev->genericDevice; -+ struct mtd_info *mtd = dev->genericDevice; - int blocksize = dev->nChunksPerBlock * dev->nDataBytesPerChunk; - int retval; - -- yaffs_trace(YAFFS_TRACE_BAD_BLOCKS, "marking block %d bad", blockNo); -+ yaffs_trace(YAFFS_TRACE_BAD_BLOCKS, "marking block %d bad\n", blockNo); - - retval = mtd->block_markbad(mtd, (loff_t)blocksize * blockNo); - return (retval) ? YAFFS_FAIL : YAFFS_OK; -@@ -298,7 +298,7 @@ int nandmtd1_MarkNANDBlockBad(struct yaf - * - * Returns YAFFS_OK or YAFFS_FAIL. - */ --static int nandmtd1_TestPrerequists(struct mtd_info * mtd) -+static int nandmtd1_TestPrerequists(struct mtd_info *mtd) - { - /* 2.6.18 has mtd->ecclayout->oobavail */ - /* 2.6.21 has mtd->ecclayout->oobavail and mtd->oobavail */ -@@ -323,10 +323,11 @@ static int nandmtd1_TestPrerequists(stru - * Always returns YAFFS_OK. - */ - int nandmtd1_QueryNANDBlock(struct yaffs_DeviceStruct *dev, int blockNo, -- yaffs_BlockState * pState, int *pSequenceNumber) -+ yaffs_BlockState *pState, __u32 *pSequenceNumber) - { -- struct mtd_info * mtd = dev->genericDevice; -+ struct mtd_info *mtd = dev->genericDevice; - int chunkNo = blockNo * dev->nChunksPerBlock; -+ loff_t addr = (loff_t)chunkNo * dev->nDataBytesPerChunk; - yaffs_ExtendedTags etags; - int state = YAFFS_BLOCK_STATE_DEAD; - int seqnum = 0; -@@ -335,21 +336,22 @@ int nandmtd1_QueryNANDBlock(struct yaffs - /* We don't yet have a good place to test for MTD config prerequists. - * Do it here as we are called during the initial scan. - */ -- if (nandmtd1_TestPrerequists(mtd) != YAFFS_OK) { -+ if (nandmtd1_TestPrerequists(mtd) != YAFFS_OK) - return YAFFS_FAIL; -- } - - retval = nandmtd1_ReadChunkWithTagsFromNAND(dev, chunkNo, NULL, &etags); -+ etags.blockBad = (mtd->block_isbad)(mtd, addr); - if (etags.blockBad) { - yaffs_trace(YAFFS_TRACE_BAD_BLOCKS, -- "block %d is marked bad", blockNo); -+ "block %d is marked bad\n", blockNo); - state = YAFFS_BLOCK_STATE_DEAD; -- } -- else if (etags.chunkUsed) { -+ } else if (etags.eccResult != YAFFS_ECC_RESULT_NO_ERROR) { -+ /* bad tags, need to look more closely */ -+ state = YAFFS_BLOCK_STATE_NEEDS_SCANNING; -+ } else if (etags.chunkUsed) { - state = YAFFS_BLOCK_STATE_NEEDS_SCANNING; - seqnum = etags.sequenceNumber; -- } -- else { -+ } else { - state = YAFFS_BLOCK_STATE_EMPTY; - } - -@@ -360,4 +362,4 @@ int nandmtd1_QueryNANDBlock(struct yaffs - return YAFFS_OK; - } - --#endif /*KERNEL_VERSION*/ -+#endif /*MTD_VERSION*/ ---- a/fs/yaffs2/yaffs_mtdif1.h -+++ b/fs/yaffs2/yaffs_mtdif1.h -@@ -14,15 +14,15 @@ - #ifndef __YAFFS_MTDIF1_H__ - #define __YAFFS_MTDIF1_H__ - --int nandmtd1_WriteChunkWithTagsToNAND(yaffs_Device * dev, int chunkInNAND, -- const __u8 * data, const yaffs_ExtendedTags * tags); -+int nandmtd1_WriteChunkWithTagsToNAND(yaffs_Device *dev, int chunkInNAND, -+ const __u8 *data, const yaffs_ExtendedTags *tags); - --int nandmtd1_ReadChunkWithTagsFromNAND(yaffs_Device * dev, int chunkInNAND, -- __u8 * data, yaffs_ExtendedTags * tags); -+int nandmtd1_ReadChunkWithTagsFromNAND(yaffs_Device *dev, int chunkInNAND, -+ __u8 *data, yaffs_ExtendedTags *tags); - - int nandmtd1_MarkNANDBlockBad(struct yaffs_DeviceStruct *dev, int blockNo); - - int nandmtd1_QueryNANDBlock(struct yaffs_DeviceStruct *dev, int blockNo, -- yaffs_BlockState * state, int *sequenceNumber); -+ yaffs_BlockState *state, __u32 *sequenceNumber); - - #endif ---- a/fs/yaffs2/yaffs_mtdif2.c -+++ b/fs/yaffs2/yaffs_mtdif2.c -@@ -14,7 +14,7 @@ - /* mtd interface for YAFFS2 */ - - const char *yaffs_mtdif2_c_version = -- "$Id: yaffs_mtdif2.c,v 1.17 2007-02-14 01:09:06 wookey Exp $"; -+ "$Id: yaffs_mtdif2.c,v 1.23 2009-03-06 17:20:53 wookey Exp $"; - - #include "yportenv.h" - -@@ -27,19 +27,23 @@ const char *yaffs_mtdif2_c_version = - - #include "yaffs_packedtags2.h" - --int nandmtd2_WriteChunkWithTagsToNAND(yaffs_Device * dev, int chunkInNAND, -- const __u8 * data, -- const yaffs_ExtendedTags * tags) -+/* NB For use with inband tags.... -+ * We assume that the data buffer is of size totalBytersPerChunk so that we can also -+ * use it to load the tags. -+ */ -+int nandmtd2_WriteChunkWithTagsToNAND(yaffs_Device *dev, int chunkInNAND, -+ const __u8 *data, -+ const yaffs_ExtendedTags *tags) - { - struct mtd_info *mtd = (struct mtd_info *)(dev->genericDevice); --#if (LINUX_VERSION_CODE > KERNEL_VERSION(2,6,17)) -+#if (MTD_VERSION_CODE > MTD_VERSION(2, 6, 17)) - struct mtd_oob_ops ops; - #else - size_t dummy; - #endif - int retval = 0; - -- loff_t addr = ((loff_t) chunkInNAND) * dev->nDataBytesPerChunk; -+ loff_t addr; - - yaffs_PackedTags2 pt; - -@@ -48,46 +52,40 @@ int nandmtd2_WriteChunkWithTagsToNAND(ya - ("nandmtd2_WriteChunkWithTagsToNAND chunk %d data %p tags %p" - TENDSTR), chunkInNAND, data, tags)); - --#if (LINUX_VERSION_CODE > KERNEL_VERSION(2,6,17)) -- if (tags) -- yaffs_PackTags2(&pt, tags); -- else -- BUG(); /* both tags and data should always be present */ - -- if (data) { -- ops.mode = MTD_OOB_AUTO; -- ops.ooblen = sizeof(pt); -- ops.len = dev->nDataBytesPerChunk; -- ops.ooboffs = 0; -- ops.datbuf = (__u8 *)data; -- ops.oobbuf = (void *)&pt; -- retval = mtd->write_oob(mtd, addr, &ops); -+ addr = ((loff_t) chunkInNAND) * dev->totalBytesPerChunk; -+ -+ /* For yaffs2 writing there must be both data and tags. -+ * If we're using inband tags, then the tags are stuffed into -+ * the end of the data buffer. -+ */ -+ if (!data || !tags) -+ BUG(); -+ else if (dev->inbandTags) { -+ yaffs_PackedTags2TagsPart *pt2tp; -+ pt2tp = (yaffs_PackedTags2TagsPart *)(data + dev->nDataBytesPerChunk); -+ yaffs_PackTags2TagsPart(pt2tp, tags); - } else -- BUG(); /* both tags and data should always be present */ --#else -- if (tags) { - yaffs_PackTags2(&pt, tags); -- } - -- if (data && tags) { -- if (dev->useNANDECC) -- retval = -- mtd->write_ecc(mtd, addr, dev->nDataBytesPerChunk, -- &dummy, data, (__u8 *) & pt, NULL); -- else -- retval = -- mtd->write_ecc(mtd, addr, dev->nDataBytesPerChunk, -- &dummy, data, (__u8 *) & pt, NULL); -- } else { -- if (data) -- retval = -- mtd->write(mtd, addr, dev->nDataBytesPerChunk, &dummy, -- data); -- if (tags) -- retval = -- mtd->write_oob(mtd, addr, mtd->oobsize, &dummy, -- (__u8 *) & pt); -+#if (LINUX_VERSION_CODE > KERNEL_VERSION(2, 6, 17)) -+ ops.mode = MTD_OOB_AUTO; -+ ops.ooblen = (dev->inbandTags) ? 0 : sizeof(pt); -+ ops.len = dev->totalBytesPerChunk; -+ ops.ooboffs = 0; -+ ops.datbuf = (__u8 *)data; -+ ops.oobbuf = (dev->inbandTags) ? NULL : (void *)&pt; -+ retval = mtd->write_oob(mtd, addr, &ops); - -+#else -+ if (!dev->inbandTags) { -+ retval = -+ mtd->write_ecc(mtd, addr, dev->nDataBytesPerChunk, -+ &dummy, data, (__u8 *) &pt, NULL); -+ } else { -+ retval = -+ mtd->write(mtd, addr, dev->totalBytesPerChunk, &dummy, -+ data); - } - #endif - -@@ -97,17 +95,18 @@ int nandmtd2_WriteChunkWithTagsToNAND(ya - return YAFFS_FAIL; - } - --int nandmtd2_ReadChunkWithTagsFromNAND(yaffs_Device * dev, int chunkInNAND, -- __u8 * data, yaffs_ExtendedTags * tags) -+int nandmtd2_ReadChunkWithTagsFromNAND(yaffs_Device *dev, int chunkInNAND, -+ __u8 *data, yaffs_ExtendedTags *tags) - { - struct mtd_info *mtd = (struct mtd_info *)(dev->genericDevice); --#if (LINUX_VERSION_CODE > KERNEL_VERSION(2,6,17)) -+#if (MTD_VERSION_CODE > MTD_VERSION(2, 6, 17)) - struct mtd_oob_ops ops; - #endif - size_t dummy; - int retval = 0; -+ int localData = 0; - -- loff_t addr = ((loff_t) chunkInNAND) * dev->nDataBytesPerChunk; -+ loff_t addr = ((loff_t) chunkInNAND) * dev->totalBytesPerChunk; - - yaffs_PackedTags2 pt; - -@@ -116,9 +115,20 @@ int nandmtd2_ReadChunkWithTagsFromNAND(y - ("nandmtd2_ReadChunkWithTagsFromNAND chunk %d data %p tags %p" - TENDSTR), chunkInNAND, data, tags)); - --#if (LINUX_VERSION_CODE > KERNEL_VERSION(2,6,17)) -- if (data && !tags) -- retval = mtd->read(mtd, addr, dev->nDataBytesPerChunk, -+ if (dev->inbandTags) { -+ -+ if (!data) { -+ localData = 1; -+ data = yaffs_GetTempBuffer(dev, __LINE__); -+ } -+ -+ -+ } -+ -+ -+#if (LINUX_VERSION_CODE > KERNEL_VERSION(2, 6, 17)) -+ if (dev->inbandTags || (data && !tags)) -+ retval = mtd->read(mtd, addr, dev->totalBytesPerChunk, - &dummy, data); - else if (tags) { - ops.mode = MTD_OOB_AUTO; -@@ -130,38 +140,42 @@ int nandmtd2_ReadChunkWithTagsFromNAND(y - retval = mtd->read_oob(mtd, addr, &ops); - } - #else -- if (data && tags) { -- if (dev->useNANDECC) { -- retval = -- mtd->read_ecc(mtd, addr, dev->nDataBytesPerChunk, -- &dummy, data, dev->spareBuffer, -- NULL); -- } else { -- retval = -- mtd->read_ecc(mtd, addr, dev->nDataBytesPerChunk, -+ if (!dev->inbandTags && data && tags) { -+ -+ retval = mtd->read_ecc(mtd, addr, dev->nDataBytesPerChunk, - &dummy, data, dev->spareBuffer, - NULL); -- } - } else { - if (data) - retval = - mtd->read(mtd, addr, dev->nDataBytesPerChunk, &dummy, - data); -- if (tags) -+ if (!dev->inbandTags && tags) - retval = - mtd->read_oob(mtd, addr, mtd->oobsize, &dummy, - dev->spareBuffer); - } - #endif - -- memcpy(&pt, dev->spareBuffer, sizeof(pt)); - -- if (tags) -- yaffs_UnpackTags2(tags, &pt); -+ if (dev->inbandTags) { -+ if (tags) { -+ yaffs_PackedTags2TagsPart *pt2tp; -+ pt2tp = (yaffs_PackedTags2TagsPart *)&data[dev->nDataBytesPerChunk]; -+ yaffs_UnpackTags2TagsPart(tags, pt2tp); -+ } -+ } else { -+ if (tags) { -+ memcpy(&pt, dev->spareBuffer, sizeof(pt)); -+ yaffs_UnpackTags2(tags, &pt); -+ } -+ } - -- if(tags && retval == -EBADMSG && tags->eccResult == YAFFS_ECC_RESULT_NO_ERROR) -- tags->eccResult = YAFFS_ECC_RESULT_UNFIXED; -+ if (localData) -+ yaffs_ReleaseTempBuffer(dev, data, __LINE__); - -+ if (tags && retval == -EBADMSG && tags->eccResult == YAFFS_ECC_RESULT_NO_ERROR) -+ tags->eccResult = YAFFS_ECC_RESULT_UNFIXED; - if (retval == 0) - return YAFFS_OK; - else -@@ -178,7 +192,7 @@ int nandmtd2_MarkNANDBlockBad(struct yaf - retval = - mtd->block_markbad(mtd, - blockNo * dev->nChunksPerBlock * -- dev->nDataBytesPerChunk); -+ dev->totalBytesPerChunk); - - if (retval == 0) - return YAFFS_OK; -@@ -188,7 +202,7 @@ int nandmtd2_MarkNANDBlockBad(struct yaf - } - - int nandmtd2_QueryNANDBlock(struct yaffs_DeviceStruct *dev, int blockNo, -- yaffs_BlockState * state, int *sequenceNumber) -+ yaffs_BlockState *state, __u32 *sequenceNumber) - { - struct mtd_info *mtd = (struct mtd_info *)(dev->genericDevice); - int retval; -@@ -198,7 +212,7 @@ int nandmtd2_QueryNANDBlock(struct yaffs - retval = - mtd->block_isbad(mtd, - blockNo * dev->nChunksPerBlock * -- dev->nDataBytesPerChunk); -+ dev->totalBytesPerChunk); - - if (retval) { - T(YAFFS_TRACE_MTD, (TSTR("block is bad" TENDSTR))); ---- a/fs/yaffs2/yaffs_mtdif2.h -+++ b/fs/yaffs2/yaffs_mtdif2.h -@@ -17,13 +17,13 @@ - #define __YAFFS_MTDIF2_H__ - - #include "yaffs_guts.h" --int nandmtd2_WriteChunkWithTagsToNAND(yaffs_Device * dev, int chunkInNAND, -- const __u8 * data, -- const yaffs_ExtendedTags * tags); --int nandmtd2_ReadChunkWithTagsFromNAND(yaffs_Device * dev, int chunkInNAND, -- __u8 * data, yaffs_ExtendedTags * tags); -+int nandmtd2_WriteChunkWithTagsToNAND(yaffs_Device *dev, int chunkInNAND, -+ const __u8 *data, -+ const yaffs_ExtendedTags *tags); -+int nandmtd2_ReadChunkWithTagsFromNAND(yaffs_Device *dev, int chunkInNAND, -+ __u8 *data, yaffs_ExtendedTags *tags); - int nandmtd2_MarkNANDBlockBad(struct yaffs_DeviceStruct *dev, int blockNo); - int nandmtd2_QueryNANDBlock(struct yaffs_DeviceStruct *dev, int blockNo, -- yaffs_BlockState * state, int *sequenceNumber); -+ yaffs_BlockState *state, __u32 *sequenceNumber); - - #endif ---- a/fs/yaffs2/yaffs_mtdif.c -+++ b/fs/yaffs2/yaffs_mtdif.c -@@ -12,7 +12,7 @@ - */ - - const char *yaffs_mtdif_c_version = -- "$Id: yaffs_mtdif.c,v 1.19 2007-02-14 01:09:06 wookey Exp $"; -+ "$Id: yaffs_mtdif.c,v 1.22 2009-03-06 17:20:51 wookey Exp $"; - - #include "yportenv.h" - -@@ -24,7 +24,7 @@ const char *yaffs_mtdif_c_version = - #include "linux/time.h" - #include "linux/mtd/nand.h" - --#if (LINUX_VERSION_CODE < KERNEL_VERSION(2,6,18)) -+#if (MTD_VERSION_CODE < MTD_VERSION(2, 6, 18)) - static struct nand_oobinfo yaffs_oobinfo = { - .useecc = 1, - .eccbytes = 6, -@@ -36,7 +36,7 @@ static struct nand_oobinfo yaffs_noeccin - }; - #endif - --#if (LINUX_VERSION_CODE > KERNEL_VERSION(2,6,17)) -+#if (MTD_VERSION_CODE > MTD_VERSION(2, 6, 17)) - static inline void translate_spare2oob(const yaffs_Spare *spare, __u8 *oob) - { - oob[0] = spare->tagByte0; -@@ -45,8 +45,8 @@ static inline void translate_spare2oob(c - oob[3] = spare->tagByte3; - oob[4] = spare->tagByte4; - oob[5] = spare->tagByte5 & 0x3f; -- oob[5] |= spare->blockStatus == 'Y' ? 0: 0x80; -- oob[5] |= spare->pageStatus == 0 ? 0: 0x40; -+ oob[5] |= spare->blockStatus == 'Y' ? 0 : 0x80; -+ oob[5] |= spare->pageStatus == 0 ? 0 : 0x40; - oob[6] = spare->tagByte6; - oob[7] = spare->tagByte7; - } -@@ -71,18 +71,18 @@ static inline void translate_oob2spare(y - } - #endif - --int nandmtd_WriteChunkToNAND(yaffs_Device * dev, int chunkInNAND, -- const __u8 * data, const yaffs_Spare * spare) -+int nandmtd_WriteChunkToNAND(yaffs_Device *dev, int chunkInNAND, -+ const __u8 *data, const yaffs_Spare *spare) - { - struct mtd_info *mtd = (struct mtd_info *)(dev->genericDevice); --#if (LINUX_VERSION_CODE > KERNEL_VERSION(2,6,17)) -+#if (MTD_VERSION_CODE > MTD_VERSION(2, 6, 17)) - struct mtd_oob_ops ops; - #endif - size_t dummy; - int retval = 0; - - loff_t addr = ((loff_t) chunkInNAND) * dev->nDataBytesPerChunk; --#if (LINUX_VERSION_CODE > KERNEL_VERSION(2,6,17)) -+#if (MTD_VERSION_CODE > MTD_VERSION(2, 6, 17)) - __u8 spareAsBytes[8]; /* OOB */ - - if (data && !spare) -@@ -135,18 +135,18 @@ int nandmtd_WriteChunkToNAND(yaffs_Devic - return YAFFS_FAIL; - } - --int nandmtd_ReadChunkFromNAND(yaffs_Device * dev, int chunkInNAND, __u8 * data, -- yaffs_Spare * spare) -+int nandmtd_ReadChunkFromNAND(yaffs_Device *dev, int chunkInNAND, __u8 *data, -+ yaffs_Spare *spare) - { - struct mtd_info *mtd = (struct mtd_info *)(dev->genericDevice); --#if (LINUX_VERSION_CODE > KERNEL_VERSION(2,6,17)) -+#if (MTD_VERSION_CODE > MTD_VERSION(2, 6, 17)) - struct mtd_oob_ops ops; - #endif - size_t dummy; - int retval = 0; - - loff_t addr = ((loff_t) chunkInNAND) * dev->nDataBytesPerChunk; --#if (LINUX_VERSION_CODE > KERNEL_VERSION(2,6,17)) -+#if (MTD_VERSION_CODE > MTD_VERSION(2, 6, 17)) - __u8 spareAsBytes[8]; /* OOB */ - - if (data && !spare) -@@ -205,7 +205,7 @@ int nandmtd_ReadChunkFromNAND(yaffs_Devi - return YAFFS_FAIL; - } - --int nandmtd_EraseBlockInNAND(yaffs_Device * dev, int blockNumber) -+int nandmtd_EraseBlockInNAND(yaffs_Device *dev, int blockNumber) - { - struct mtd_info *mtd = (struct mtd_info *)(dev->genericDevice); - __u32 addr = -@@ -234,7 +234,7 @@ int nandmtd_EraseBlockInNAND(yaffs_Devic - return YAFFS_FAIL; - } - --int nandmtd_InitialiseNAND(yaffs_Device * dev) -+int nandmtd_InitialiseNAND(yaffs_Device *dev) - { - return YAFFS_OK; - } ---- a/fs/yaffs2/yaffs_mtdif.h -+++ b/fs/yaffs2/yaffs_mtdif.h -@@ -18,10 +18,15 @@ - - #include "yaffs_guts.h" - --int nandmtd_WriteChunkToNAND(yaffs_Device * dev, int chunkInNAND, -- const __u8 * data, const yaffs_Spare * spare); --int nandmtd_ReadChunkFromNAND(yaffs_Device * dev, int chunkInNAND, __u8 * data, -- yaffs_Spare * spare); --int nandmtd_EraseBlockInNAND(yaffs_Device * dev, int blockNumber); --int nandmtd_InitialiseNAND(yaffs_Device * dev); -+#if (MTD_VERSION_CODE < MTD_VERSION(2, 6, 18)) -+extern struct nand_oobinfo yaffs_oobinfo; -+extern struct nand_oobinfo yaffs_noeccinfo; -+#endif -+ -+int nandmtd_WriteChunkToNAND(yaffs_Device *dev, int chunkInNAND, -+ const __u8 *data, const yaffs_Spare *spare); -+int nandmtd_ReadChunkFromNAND(yaffs_Device *dev, int chunkInNAND, __u8 *data, -+ yaffs_Spare *spare); -+int nandmtd_EraseBlockInNAND(yaffs_Device *dev, int blockNumber); -+int nandmtd_InitialiseNAND(yaffs_Device *dev); - #endif ---- a/fs/yaffs2/yaffs_nand.c -+++ b/fs/yaffs2/yaffs_nand.c -@@ -12,16 +12,17 @@ - */ - - const char *yaffs_nand_c_version = -- "$Id: yaffs_nand.c,v 1.7 2007-02-14 01:09:06 wookey Exp $"; -+ "$Id: yaffs_nand.c,v 1.10 2009-03-06 17:20:54 wookey Exp $"; - - #include "yaffs_nand.h" - #include "yaffs_tagscompat.h" - #include "yaffs_tagsvalidity.h" - -+#include "yaffs_getblockinfo.h" - --int yaffs_ReadChunkWithTagsFromNAND(yaffs_Device * dev, int chunkInNAND, -- __u8 * buffer, -- yaffs_ExtendedTags * tags) -+int yaffs_ReadChunkWithTagsFromNAND(yaffs_Device *dev, int chunkInNAND, -+ __u8 *buffer, -+ yaffs_ExtendedTags *tags) - { - int result; - yaffs_ExtendedTags localTags; -@@ -29,7 +30,7 @@ int yaffs_ReadChunkWithTagsFromNAND(yaff - int realignedChunkInNAND = chunkInNAND - dev->chunkOffset; - - /* If there are no tags provided, use local tags to get prioritised gc working */ -- if(!tags) -+ if (!tags) - tags = &localTags; - - if (dev->readChunkWithTagsFromNAND) -@@ -40,20 +41,20 @@ int yaffs_ReadChunkWithTagsFromNAND(yaff - realignedChunkInNAND, - buffer, - tags); -- if(tags && -- tags->eccResult > YAFFS_ECC_RESULT_NO_ERROR){ -+ if (tags && -+ tags->eccResult > YAFFS_ECC_RESULT_NO_ERROR) { - - yaffs_BlockInfo *bi = yaffs_GetBlockInfo(dev, chunkInNAND/dev->nChunksPerBlock); -- yaffs_HandleChunkError(dev,bi); -+ yaffs_HandleChunkError(dev, bi); - } - - return result; - } - --int yaffs_WriteChunkWithTagsToNAND(yaffs_Device * dev, -+int yaffs_WriteChunkWithTagsToNAND(yaffs_Device *dev, - int chunkInNAND, -- const __u8 * buffer, -- yaffs_ExtendedTags * tags) -+ const __u8 *buffer, -+ yaffs_ExtendedTags *tags) - { - chunkInNAND -= dev->chunkOffset; - -@@ -84,7 +85,7 @@ int yaffs_WriteChunkWithTagsToNAND(yaffs - tags); - } - --int yaffs_MarkBlockBad(yaffs_Device * dev, int blockNo) -+int yaffs_MarkBlockBad(yaffs_Device *dev, int blockNo) - { - blockNo -= dev->blockOffset; - -@@ -95,10 +96,10 @@ int yaffs_MarkBlockBad(yaffs_Device * de - return yaffs_TagsCompatabilityMarkNANDBlockBad(dev, blockNo); - } - --int yaffs_QueryInitialBlockState(yaffs_Device * dev, -+int yaffs_QueryInitialBlockState(yaffs_Device *dev, - int blockNo, -- yaffs_BlockState * state, -- unsigned *sequenceNumber) -+ yaffs_BlockState *state, -+ __u32 *sequenceNumber) - { - blockNo -= dev->blockOffset; - ---- a/fs/yaffs2/yaffs_nandemul2k.h -+++ b/fs/yaffs2/yaffs_nandemul2k.h -@@ -21,14 +21,14 @@ - #include "yaffs_guts.h" - - int nandemul2k_WriteChunkWithTagsToNAND(struct yaffs_DeviceStruct *dev, -- int chunkInNAND, const __u8 * data, -- yaffs_ExtendedTags * tags); -+ int chunkInNAND, const __u8 *data, -+ const yaffs_ExtendedTags *tags); - int nandemul2k_ReadChunkWithTagsFromNAND(struct yaffs_DeviceStruct *dev, -- int chunkInNAND, __u8 * data, -- yaffs_ExtendedTags * tags); -+ int chunkInNAND, __u8 *data, -+ yaffs_ExtendedTags *tags); - int nandemul2k_MarkNANDBlockBad(struct yaffs_DeviceStruct *dev, int blockNo); - int nandemul2k_QueryNANDBlock(struct yaffs_DeviceStruct *dev, int blockNo, -- yaffs_BlockState * state, int *sequenceNumber); -+ yaffs_BlockState *state, __u32 *sequenceNumber); - int nandemul2k_EraseBlockInNAND(struct yaffs_DeviceStruct *dev, - int blockInNAND); - int nandemul2k_InitialiseNAND(struct yaffs_DeviceStruct *dev); ---- a/fs/yaffs2/yaffs_nand.h -+++ b/fs/yaffs2/yaffs_nand.h -@@ -19,21 +19,21 @@ - - - --int yaffs_ReadChunkWithTagsFromNAND(yaffs_Device * dev, int chunkInNAND, -- __u8 * buffer, -- yaffs_ExtendedTags * tags); -- --int yaffs_WriteChunkWithTagsToNAND(yaffs_Device * dev, -- int chunkInNAND, -- const __u8 * buffer, -- yaffs_ExtendedTags * tags); -- --int yaffs_MarkBlockBad(yaffs_Device * dev, int blockNo); -- --int yaffs_QueryInitialBlockState(yaffs_Device * dev, -- int blockNo, -- yaffs_BlockState * state, -- unsigned *sequenceNumber); -+int yaffs_ReadChunkWithTagsFromNAND(yaffs_Device *dev, int chunkInNAND, -+ __u8 *buffer, -+ yaffs_ExtendedTags *tags); -+ -+int yaffs_WriteChunkWithTagsToNAND(yaffs_Device *dev, -+ int chunkInNAND, -+ const __u8 *buffer, -+ yaffs_ExtendedTags *tags); -+ -+int yaffs_MarkBlockBad(yaffs_Device *dev, int blockNo); -+ -+int yaffs_QueryInitialBlockState(yaffs_Device *dev, -+ int blockNo, -+ yaffs_BlockState *state, -+ unsigned *sequenceNumber); - - int yaffs_EraseBlockInNAND(struct yaffs_DeviceStruct *dev, - int blockInNAND); ---- a/fs/yaffs2/yaffs_packedtags1.c -+++ b/fs/yaffs2/yaffs_packedtags1.c -@@ -14,7 +14,7 @@ - #include "yaffs_packedtags1.h" - #include "yportenv.h" - --void yaffs_PackTags1(yaffs_PackedTags1 * pt, const yaffs_ExtendedTags * t) -+void yaffs_PackTags1(yaffs_PackedTags1 *pt, const yaffs_ExtendedTags *t) - { - pt->chunkId = t->chunkId; - pt->serialNumber = t->serialNumber; -@@ -27,7 +27,7 @@ void yaffs_PackTags1(yaffs_PackedTags1 * - - } - --void yaffs_UnpackTags1(yaffs_ExtendedTags * t, const yaffs_PackedTags1 * pt) -+void yaffs_UnpackTags1(yaffs_ExtendedTags *t, const yaffs_PackedTags1 *pt) - { - static const __u8 allFF[] = - { 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, -@@ -35,9 +35,8 @@ void yaffs_UnpackTags1(yaffs_ExtendedTag - - if (memcmp(allFF, pt, sizeof(yaffs_PackedTags1))) { - t->blockBad = 0; -- if (pt->shouldBeFF != 0xFFFFFFFF) { -+ if (pt->shouldBeFF != 0xFFFFFFFF) - t->blockBad = 1; -- } - t->chunkUsed = 1; - t->objectId = pt->objectId; - t->chunkId = pt->chunkId; -@@ -47,6 +46,5 @@ void yaffs_UnpackTags1(yaffs_ExtendedTag - t->serialNumber = pt->serialNumber; - } else { - memset(t, 0, sizeof(yaffs_ExtendedTags)); -- - } - } ---- a/fs/yaffs2/yaffs_packedtags1.h -+++ b/fs/yaffs2/yaffs_packedtags1.h -@@ -32,6 +32,6 @@ typedef struct { - - } yaffs_PackedTags1; - --void yaffs_PackTags1(yaffs_PackedTags1 * pt, const yaffs_ExtendedTags * t); --void yaffs_UnpackTags1(yaffs_ExtendedTags * t, const yaffs_PackedTags1 * pt); -+void yaffs_PackTags1(yaffs_PackedTags1 *pt, const yaffs_ExtendedTags *t); -+void yaffs_UnpackTags1(yaffs_ExtendedTags *t, const yaffs_PackedTags1 *pt); - #endif ---- a/fs/yaffs2/yaffs_packedtags2.c -+++ b/fs/yaffs2/yaffs_packedtags2.c -@@ -37,60 +37,68 @@ - #define EXTRA_OBJECT_TYPE_SHIFT (28) - #define EXTRA_OBJECT_TYPE_MASK ((0x0F) << EXTRA_OBJECT_TYPE_SHIFT) - --static void yaffs_DumpPackedTags2(const yaffs_PackedTags2 * pt) -+ -+static void yaffs_DumpPackedTags2TagsPart(const yaffs_PackedTags2TagsPart *ptt) - { - T(YAFFS_TRACE_MTD, - (TSTR("packed tags obj %d chunk %d byte %d seq %d" TENDSTR), -- pt->t.objectId, pt->t.chunkId, pt->t.byteCount, -- pt->t.sequenceNumber)); -+ ptt->objectId, ptt->chunkId, ptt->byteCount, -+ ptt->sequenceNumber)); -+} -+static void yaffs_DumpPackedTags2(const yaffs_PackedTags2 *pt) -+{ -+ yaffs_DumpPackedTags2TagsPart(&pt->t); - } - --static void yaffs_DumpTags2(const yaffs_ExtendedTags * t) -+static void yaffs_DumpTags2(const yaffs_ExtendedTags *t) - { - T(YAFFS_TRACE_MTD, - (TSTR -- ("ext.tags eccres %d blkbad %d chused %d obj %d chunk%d byte " -- "%d del %d ser %d seq %d" -+ ("ext.tags eccres %d blkbad %d chused %d obj %d chunk%d byte %d del %d ser %d seq %d" - TENDSTR), t->eccResult, t->blockBad, t->chunkUsed, t->objectId, - t->chunkId, t->byteCount, t->chunkDeleted, t->serialNumber, - t->sequenceNumber)); - - } - --void yaffs_PackTags2(yaffs_PackedTags2 * pt, const yaffs_ExtendedTags * t) -+void yaffs_PackTags2TagsPart(yaffs_PackedTags2TagsPart *ptt, -+ const yaffs_ExtendedTags *t) - { -- pt->t.chunkId = t->chunkId; -- pt->t.sequenceNumber = t->sequenceNumber; -- pt->t.byteCount = t->byteCount; -- pt->t.objectId = t->objectId; -+ ptt->chunkId = t->chunkId; -+ ptt->sequenceNumber = t->sequenceNumber; -+ ptt->byteCount = t->byteCount; -+ ptt->objectId = t->objectId; - - if (t->chunkId == 0 && t->extraHeaderInfoAvailable) { - /* Store the extra header info instead */ - /* We save the parent object in the chunkId */ -- pt->t.chunkId = EXTRA_HEADER_INFO_FLAG -+ ptt->chunkId = EXTRA_HEADER_INFO_FLAG - | t->extraParentObjectId; -- if (t->extraIsShrinkHeader) { -- pt->t.chunkId |= EXTRA_SHRINK_FLAG; -- } -- if (t->extraShadows) { -- pt->t.chunkId |= EXTRA_SHADOWS_FLAG; -- } -+ if (t->extraIsShrinkHeader) -+ ptt->chunkId |= EXTRA_SHRINK_FLAG; -+ if (t->extraShadows) -+ ptt->chunkId |= EXTRA_SHADOWS_FLAG; - -- pt->t.objectId &= ~EXTRA_OBJECT_TYPE_MASK; -- pt->t.objectId |= -+ ptt->objectId &= ~EXTRA_OBJECT_TYPE_MASK; -+ ptt->objectId |= - (t->extraObjectType << EXTRA_OBJECT_TYPE_SHIFT); - -- if (t->extraObjectType == YAFFS_OBJECT_TYPE_HARDLINK) { -- pt->t.byteCount = t->extraEquivalentObjectId; -- } else if (t->extraObjectType == YAFFS_OBJECT_TYPE_FILE) { -- pt->t.byteCount = t->extraFileLength; -- } else { -- pt->t.byteCount = 0; -- } -+ if (t->extraObjectType == YAFFS_OBJECT_TYPE_HARDLINK) -+ ptt->byteCount = t->extraEquivalentObjectId; -+ else if (t->extraObjectType == YAFFS_OBJECT_TYPE_FILE) -+ ptt->byteCount = t->extraFileLength; -+ else -+ ptt->byteCount = 0; - } - -- yaffs_DumpPackedTags2(pt); -+ yaffs_DumpPackedTags2TagsPart(ptt); - yaffs_DumpTags2(t); -+} -+ -+ -+void yaffs_PackTags2(yaffs_PackedTags2 *pt, const yaffs_ExtendedTags *t) -+{ -+ yaffs_PackTags2TagsPart(&pt->t, t); - - #ifndef YAFFS_IGNORE_TAGS_ECC - { -@@ -101,82 +109,98 @@ void yaffs_PackTags2(yaffs_PackedTags2 * - #endif - } - --void yaffs_UnpackTags2(yaffs_ExtendedTags * t, yaffs_PackedTags2 * pt) -+ -+void yaffs_UnpackTags2TagsPart(yaffs_ExtendedTags *t, -+ yaffs_PackedTags2TagsPart *ptt) - { - - memset(t, 0, sizeof(yaffs_ExtendedTags)); - - yaffs_InitialiseTags(t); - -- if (pt->t.sequenceNumber != 0xFFFFFFFF) { -- /* Page is in use */ --#ifdef YAFFS_IGNORE_TAGS_ECC -- { -- t->eccResult = YAFFS_ECC_RESULT_NO_ERROR; -- } --#else -- { -- yaffs_ECCOther ecc; -- int result; -- yaffs_ECCCalculateOther((unsigned char *)&pt->t, -- sizeof -- (yaffs_PackedTags2TagsPart), -- &ecc); -- result = -- yaffs_ECCCorrectOther((unsigned char *)&pt->t, -- sizeof -- (yaffs_PackedTags2TagsPart), -- &pt->ecc, &ecc); -- switch(result){ -- case 0: -- t->eccResult = YAFFS_ECC_RESULT_NO_ERROR; -- break; -- case 1: -- t->eccResult = YAFFS_ECC_RESULT_FIXED; -- break; -- case -1: -- t->eccResult = YAFFS_ECC_RESULT_UNFIXED; -- break; -- default: -- t->eccResult = YAFFS_ECC_RESULT_UNKNOWN; -- } -- } --#endif -+ if (ptt->sequenceNumber != 0xFFFFFFFF) { - t->blockBad = 0; - t->chunkUsed = 1; -- t->objectId = pt->t.objectId; -- t->chunkId = pt->t.chunkId; -- t->byteCount = pt->t.byteCount; -+ t->objectId = ptt->objectId; -+ t->chunkId = ptt->chunkId; -+ t->byteCount = ptt->byteCount; - t->chunkDeleted = 0; - t->serialNumber = 0; -- t->sequenceNumber = pt->t.sequenceNumber; -+ t->sequenceNumber = ptt->sequenceNumber; - - /* Do extra header info stuff */ - -- if (pt->t.chunkId & EXTRA_HEADER_INFO_FLAG) { -+ if (ptt->chunkId & EXTRA_HEADER_INFO_FLAG) { - t->chunkId = 0; - t->byteCount = 0; - - t->extraHeaderInfoAvailable = 1; - t->extraParentObjectId = -- pt->t.chunkId & (~(ALL_EXTRA_FLAGS)); -+ ptt->chunkId & (~(ALL_EXTRA_FLAGS)); - t->extraIsShrinkHeader = -- (pt->t.chunkId & EXTRA_SHRINK_FLAG) ? 1 : 0; -+ (ptt->chunkId & EXTRA_SHRINK_FLAG) ? 1 : 0; - t->extraShadows = -- (pt->t.chunkId & EXTRA_SHADOWS_FLAG) ? 1 : 0; -+ (ptt->chunkId & EXTRA_SHADOWS_FLAG) ? 1 : 0; - t->extraObjectType = -- pt->t.objectId >> EXTRA_OBJECT_TYPE_SHIFT; -+ ptt->objectId >> EXTRA_OBJECT_TYPE_SHIFT; - t->objectId &= ~EXTRA_OBJECT_TYPE_MASK; - -- if (t->extraObjectType == YAFFS_OBJECT_TYPE_HARDLINK) { -- t->extraEquivalentObjectId = pt->t.byteCount; -- } else { -- t->extraFileLength = pt->t.byteCount; -+ if (t->extraObjectType == YAFFS_OBJECT_TYPE_HARDLINK) -+ t->extraEquivalentObjectId = ptt->byteCount; -+ else -+ t->extraFileLength = ptt->byteCount; -+ } -+ } -+ -+ yaffs_DumpPackedTags2TagsPart(ptt); -+ yaffs_DumpTags2(t); -+ -+} -+ -+ -+void yaffs_UnpackTags2(yaffs_ExtendedTags *t, yaffs_PackedTags2 *pt) -+{ -+ -+ yaffs_ECCResult eccResult = YAFFS_ECC_RESULT_NO_ERROR; -+ -+ if (pt->t.sequenceNumber != 0xFFFFFFFF) { -+ /* Page is in use */ -+#ifndef YAFFS_IGNORE_TAGS_ECC -+ { -+ yaffs_ECCOther ecc; -+ int result; -+ yaffs_ECCCalculateOther((unsigned char *)&pt->t, -+ sizeof -+ (yaffs_PackedTags2TagsPart), -+ &ecc); -+ result = -+ yaffs_ECCCorrectOther((unsigned char *)&pt->t, -+ sizeof -+ (yaffs_PackedTags2TagsPart), -+ &pt->ecc, &ecc); -+ switch (result) { -+ case 0: -+ eccResult = YAFFS_ECC_RESULT_NO_ERROR; -+ break; -+ case 1: -+ eccResult = YAFFS_ECC_RESULT_FIXED; -+ break; -+ case -1: -+ eccResult = YAFFS_ECC_RESULT_UNFIXED; -+ break; -+ default: -+ eccResult = YAFFS_ECC_RESULT_UNKNOWN; - } - } -+#endif - } - -+ yaffs_UnpackTags2TagsPart(t, &pt->t); -+ -+ t->eccResult = eccResult; -+ - yaffs_DumpPackedTags2(pt); - yaffs_DumpTags2(t); - - } -+ ---- a/fs/yaffs2/yaffs_packedtags2.h -+++ b/fs/yaffs2/yaffs_packedtags2.h -@@ -33,6 +33,11 @@ typedef struct { - yaffs_ECCOther ecc; - } yaffs_PackedTags2; - --void yaffs_PackTags2(yaffs_PackedTags2 * pt, const yaffs_ExtendedTags * t); --void yaffs_UnpackTags2(yaffs_ExtendedTags * t, yaffs_PackedTags2 * pt); -+/* Full packed tags with ECC, used for oob tags */ -+void yaffs_PackTags2(yaffs_PackedTags2 *pt, const yaffs_ExtendedTags *t); -+void yaffs_UnpackTags2(yaffs_ExtendedTags *t, yaffs_PackedTags2 *pt); -+ -+/* Only the tags part (no ECC for use with inband tags */ -+void yaffs_PackTags2TagsPart(yaffs_PackedTags2TagsPart *pt, const yaffs_ExtendedTags *t); -+void yaffs_UnpackTags2TagsPart(yaffs_ExtendedTags *t, yaffs_PackedTags2TagsPart *pt); - #endif ---- a/fs/yaffs2/yaffs_qsort.c -+++ b/fs/yaffs2/yaffs_qsort.c -@@ -28,12 +28,12 @@ - */ - - #include "yportenv.h" --//#include -+/* #include */ - - /* - * Qsort routine from Bentley & McIlroy's "Engineering a Sort Function". - */ --#define swapcode(TYPE, parmi, parmj, n) { \ -+#define swapcode(TYPE, parmi, parmj, n) do { \ - long i = (n) / sizeof (TYPE); \ - register TYPE *pi = (TYPE *) (parmi); \ - register TYPE *pj = (TYPE *) (parmj); \ -@@ -41,28 +41,29 @@ - register TYPE t = *pi; \ - *pi++ = *pj; \ - *pj++ = t; \ -- } while (--i > 0); \ --} -+ } while (--i > 0); \ -+} while (0) - - #define SWAPINIT(a, es) swaptype = ((char *)a - (char *)0) % sizeof(long) || \ -- es % sizeof(long) ? 2 : es == sizeof(long)? 0 : 1; -+ es % sizeof(long) ? 2 : es == sizeof(long) ? 0 : 1; - - static __inline void - swapfunc(char *a, char *b, int n, int swaptype) - { - if (swaptype <= 1) -- swapcode(long, a, b, n) -+ swapcode(long, a, b, n); - else -- swapcode(char, a, b, n) -+ swapcode(char, a, b, n); - } - --#define swap(a, b) \ -+#define yswap(a, b) do { \ - if (swaptype == 0) { \ - long t = *(long *)(a); \ - *(long *)(a) = *(long *)(b); \ - *(long *)(b) = t; \ - } else \ -- swapfunc(a, b, es, swaptype) -+ swapfunc(a, b, es, swaptype); \ -+} while (0) - - #define vecswap(a, b, n) if ((n) > 0) swapfunc(a, b, n, swaptype) - -@@ -70,12 +71,12 @@ static __inline char * - med3(char *a, char *b, char *c, int (*cmp)(const void *, const void *)) - { - return cmp(a, b) < 0 ? -- (cmp(b, c) < 0 ? b : (cmp(a, c) < 0 ? c : a )) -- :(cmp(b, c) > 0 ? b : (cmp(a, c) < 0 ? a : c )); -+ (cmp(b, c) < 0 ? b : (cmp(a, c) < 0 ? c : a)) -+ : (cmp(b, c) > 0 ? b : (cmp(a, c) < 0 ? a : c)); - } - - #ifndef min --#define min(a,b) (((a) < (b)) ? (a) : (b)) -+#define min(a, b) (((a) < (b)) ? (a) : (b)) - #endif - - void -@@ -92,7 +93,7 @@ loop: SWAPINIT(a, es); - for (pm = (char *)a + es; pm < (char *) a + n * es; pm += es) - for (pl = pm; pl > (char *) a && cmp(pl - es, pl) > 0; - pl -= es) -- swap(pl, pl - es); -+ yswap(pl, pl - es); - return; - } - pm = (char *)a + (n / 2) * es; -@@ -107,7 +108,7 @@ loop: SWAPINIT(a, es); - } - pm = med3(pl, pm, pn, cmp); - } -- swap(a, pm); -+ yswap(a, pm); - pa = pb = (char *)a + es; - - pc = pd = (char *)a + (n - 1) * es; -@@ -115,7 +116,7 @@ loop: SWAPINIT(a, es); - while (pb <= pc && (r = cmp(pb, a)) <= 0) { - if (r == 0) { - swap_cnt = 1; -- swap(pa, pb); -+ yswap(pa, pb); - pa += es; - } - pb += es; -@@ -123,14 +124,14 @@ loop: SWAPINIT(a, es); - while (pb <= pc && (r = cmp(pc, a)) >= 0) { - if (r == 0) { - swap_cnt = 1; -- swap(pc, pd); -+ yswap(pc, pd); - pd -= es; - } - pc -= es; - } - if (pb > pc) - break; -- swap(pb, pc); -+ yswap(pb, pc); - swap_cnt = 1; - pb += es; - pc -= es; -@@ -139,7 +140,7 @@ loop: SWAPINIT(a, es); - for (pm = (char *) a + es; pm < (char *) a + n * es; pm += es) - for (pl = pm; pl > (char *) a && cmp(pl - es, pl) > 0; - pl -= es) -- swap(pl, pl - es); -+ yswap(pl, pl - es); - return; - } - -@@ -148,9 +149,11 @@ loop: SWAPINIT(a, es); - vecswap(a, pb - r, r); - r = min((long)(pd - pc), (long)(pn - pd - es)); - vecswap(pb, pn - r, r); -- if ((r = pb - pa) > es) -+ r = pb - pa; -+ if (r > es) - yaffs_qsort(a, r / es, es, cmp); -- if ((r = pd - pc) > es) { -+ r = pd - pc; -+ if (r > es) { - /* Iterate rather than recurse to save stack space */ - a = pn - r; - n = r / es; ---- a/fs/yaffs2/yaffs_qsort.h -+++ b/fs/yaffs2/yaffs_qsort.h -@@ -17,7 +17,7 @@ - #ifndef __YAFFS_QSORT_H__ - #define __YAFFS_QSORT_H__ - --extern void yaffs_qsort (void *const base, size_t total_elems, size_t size, -- int (*cmp)(const void *, const void *)); -+extern void yaffs_qsort(void *const base, size_t total_elems, size_t size, -+ int (*cmp)(const void *, const void *)); - - #endif ---- a/fs/yaffs2/yaffs_tagscompat.c -+++ b/fs/yaffs2/yaffs_tagscompat.c -@@ -14,16 +14,17 @@ - #include "yaffs_guts.h" - #include "yaffs_tagscompat.h" - #include "yaffs_ecc.h" -+#include "yaffs_getblockinfo.h" - --static void yaffs_HandleReadDataError(yaffs_Device * dev, int chunkInNAND); -+static void yaffs_HandleReadDataError(yaffs_Device *dev, int chunkInNAND); - #ifdef NOTYET --static void yaffs_CheckWrittenBlock(yaffs_Device * dev, int chunkInNAND); --static void yaffs_HandleWriteChunkOk(yaffs_Device * dev, int chunkInNAND, -- const __u8 * data, -- const yaffs_Spare * spare); --static void yaffs_HandleUpdateChunk(yaffs_Device * dev, int chunkInNAND, -- const yaffs_Spare * spare); --static void yaffs_HandleWriteChunkError(yaffs_Device * dev, int chunkInNAND); -+static void yaffs_CheckWrittenBlock(yaffs_Device *dev, int chunkInNAND); -+static void yaffs_HandleWriteChunkOk(yaffs_Device *dev, int chunkInNAND, -+ const __u8 *data, -+ const yaffs_Spare *spare); -+static void yaffs_HandleUpdateChunk(yaffs_Device *dev, int chunkInNAND, -+ const yaffs_Spare *spare); -+static void yaffs_HandleWriteChunkError(yaffs_Device *dev, int chunkInNAND); - #endif - - static const char yaffs_countBitsTable[256] = { -@@ -54,13 +55,13 @@ int yaffs_CountBits(__u8 x) - - /********** Tags ECC calculations *********/ - --void yaffs_CalcECC(const __u8 * data, yaffs_Spare * spare) -+void yaffs_CalcECC(const __u8 *data, yaffs_Spare *spare) - { - yaffs_ECCCalculate(data, spare->ecc1); - yaffs_ECCCalculate(&data[256], spare->ecc2); - } - --void yaffs_CalcTagsECC(yaffs_Tags * tags) -+void yaffs_CalcTagsECC(yaffs_Tags *tags) - { - /* Calculate an ecc */ - -@@ -74,9 +75,8 @@ void yaffs_CalcTagsECC(yaffs_Tags * tags - for (i = 0; i < 8; i++) { - for (j = 1; j & 0xff; j <<= 1) { - bit++; -- if (b[i] & j) { -+ if (b[i] & j) - ecc ^= bit; -- } - } - } - -@@ -84,7 +84,7 @@ void yaffs_CalcTagsECC(yaffs_Tags * tags - - } - --int yaffs_CheckECCOnTags(yaffs_Tags * tags) -+int yaffs_CheckECCOnTags(yaffs_Tags *tags) - { - unsigned ecc = tags->ecc; - -@@ -115,8 +115,8 @@ int yaffs_CheckECCOnTags(yaffs_Tags * ta - - /********** Tags **********/ - --static void yaffs_LoadTagsIntoSpare(yaffs_Spare * sparePtr, -- yaffs_Tags * tagsPtr) -+static void yaffs_LoadTagsIntoSpare(yaffs_Spare *sparePtr, -+ yaffs_Tags *tagsPtr) - { - yaffs_TagsUnion *tu = (yaffs_TagsUnion *) tagsPtr; - -@@ -132,8 +132,8 @@ static void yaffs_LoadTagsIntoSpare(yaff - sparePtr->tagByte7 = tu->asBytes[7]; - } - --static void yaffs_GetTagsFromSpare(yaffs_Device * dev, yaffs_Spare * sparePtr, -- yaffs_Tags * tagsPtr) -+static void yaffs_GetTagsFromSpare(yaffs_Device *dev, yaffs_Spare *sparePtr, -+ yaffs_Tags *tagsPtr) - { - yaffs_TagsUnion *tu = (yaffs_TagsUnion *) tagsPtr; - int result; -@@ -148,21 +148,20 @@ static void yaffs_GetTagsFromSpare(yaffs - tu->asBytes[7] = sparePtr->tagByte7; - - result = yaffs_CheckECCOnTags(tagsPtr); -- if (result > 0) { -+ if (result > 0) - dev->tagsEccFixed++; -- } else if (result < 0) { -+ else if (result < 0) - dev->tagsEccUnfixed++; -- } - } - --static void yaffs_SpareInitialise(yaffs_Spare * spare) -+static void yaffs_SpareInitialise(yaffs_Spare *spare) - { - memset(spare, 0xFF, sizeof(yaffs_Spare)); - } - - static int yaffs_WriteChunkToNAND(struct yaffs_DeviceStruct *dev, -- int chunkInNAND, const __u8 * data, -- yaffs_Spare * spare) -+ int chunkInNAND, const __u8 *data, -+ yaffs_Spare *spare) - { - if (chunkInNAND < dev->startBlock * dev->nChunksPerBlock) { - T(YAFFS_TRACE_ERROR, -@@ -177,9 +176,9 @@ static int yaffs_WriteChunkToNAND(struct - - static int yaffs_ReadChunkFromNAND(struct yaffs_DeviceStruct *dev, - int chunkInNAND, -- __u8 * data, -- yaffs_Spare * spare, -- yaffs_ECCResult * eccResult, -+ __u8 *data, -+ yaffs_Spare *spare, -+ yaffs_ECCResult *eccResult, - int doErrorCorrection) - { - int retVal; -@@ -252,9 +251,11 @@ static int yaffs_ReadChunkFromNAND(struc - /* Must allocate enough memory for spare+2*sizeof(int) */ - /* for ecc results from device. */ - struct yaffs_NANDSpare nspare; -- retVal = -- dev->readChunkFromNAND(dev, chunkInNAND, data, -- (yaffs_Spare *) & nspare); -+ -+ memset(&nspare, 0, sizeof(nspare)); -+ -+ retVal = dev->readChunkFromNAND(dev, chunkInNAND, data, -+ (yaffs_Spare *) &nspare); - memcpy(spare, &nspare, sizeof(yaffs_Spare)); - if (data && doErrorCorrection) { - if (nspare.eccres1 > 0) { -@@ -302,8 +303,7 @@ static int yaffs_ReadChunkFromNAND(struc - static int yaffs_CheckChunkErased(struct yaffs_DeviceStruct *dev, - int chunkInNAND) - { -- -- static int init = 0; -+ static int init; - static __u8 cmpbuf[YAFFS_BYTES_PER_CHUNK]; - static __u8 data[YAFFS_BYTES_PER_CHUNK]; - /* Might as well always allocate the larger size for */ -@@ -331,12 +331,12 @@ static int yaffs_CheckChunkErased(struct - * Functions for robustisizing - */ - --static void yaffs_HandleReadDataError(yaffs_Device * dev, int chunkInNAND) -+static void yaffs_HandleReadDataError(yaffs_Device *dev, int chunkInNAND) - { - int blockInNAND = chunkInNAND / dev->nChunksPerBlock; - - /* Mark the block for retirement */ -- yaffs_GetBlockInfo(dev, blockInNAND)->needsRetiring = 1; -+ yaffs_GetBlockInfo(dev, blockInNAND + dev->blockOffset)->needsRetiring = 1; - T(YAFFS_TRACE_ERROR | YAFFS_TRACE_BAD_BLOCKS, - (TSTR("**>>Block %d marked for retirement" TENDSTR), blockInNAND)); - -@@ -348,22 +348,22 @@ static void yaffs_HandleReadDataError(ya - } - - #ifdef NOTYET --static void yaffs_CheckWrittenBlock(yaffs_Device * dev, int chunkInNAND) -+static void yaffs_CheckWrittenBlock(yaffs_Device *dev, int chunkInNAND) - { - } - --static void yaffs_HandleWriteChunkOk(yaffs_Device * dev, int chunkInNAND, -- const __u8 * data, -- const yaffs_Spare * spare) -+static void yaffs_HandleWriteChunkOk(yaffs_Device *dev, int chunkInNAND, -+ const __u8 *data, -+ const yaffs_Spare *spare) - { - } - --static void yaffs_HandleUpdateChunk(yaffs_Device * dev, int chunkInNAND, -- const yaffs_Spare * spare) -+static void yaffs_HandleUpdateChunk(yaffs_Device *dev, int chunkInNAND, -+ const yaffs_Spare *spare) - { - } - --static void yaffs_HandleWriteChunkError(yaffs_Device * dev, int chunkInNAND) -+static void yaffs_HandleWriteChunkError(yaffs_Device *dev, int chunkInNAND) - { - int blockInNAND = chunkInNAND / dev->nChunksPerBlock; - -@@ -373,8 +373,8 @@ static void yaffs_HandleWriteChunkError( - yaffs_DeleteChunk(dev, chunkInNAND, 1, __LINE__); - } - --static int yaffs_VerifyCompare(const __u8 * d0, const __u8 * d1, -- const yaffs_Spare * s0, const yaffs_Spare * s1) -+static int yaffs_VerifyCompare(const __u8 *d0, const __u8 *d1, -+ const yaffs_Spare *s0, const yaffs_Spare *s1) - { - - if (memcmp(d0, d1, YAFFS_BYTES_PER_CHUNK) != 0 || -@@ -398,28 +398,35 @@ static int yaffs_VerifyCompare(const __u - } - #endif /* NOTYET */ - --int yaffs_TagsCompatabilityWriteChunkWithTagsToNAND(yaffs_Device * dev, -- int chunkInNAND, -- const __u8 * data, -- const yaffs_ExtendedTags * -- eTags) -+int yaffs_TagsCompatabilityWriteChunkWithTagsToNAND(yaffs_Device *dev, -+ int chunkInNAND, -+ const __u8 *data, -+ const yaffs_ExtendedTags *eTags) - { - yaffs_Spare spare; - yaffs_Tags tags; - - yaffs_SpareInitialise(&spare); - -- if (eTags->chunkDeleted) { -+ if (eTags->chunkDeleted) - spare.pageStatus = 0; -- } else { -+ else { - tags.objectId = eTags->objectId; - tags.chunkId = eTags->chunkId; -- tags.byteCount = eTags->byteCount; -+ -+ tags.byteCountLSB = eTags->byteCount & 0x3ff; -+ -+ if (dev->nDataBytesPerChunk >= 1024) -+ tags.byteCountMSB = (eTags->byteCount >> 10) & 3; -+ else -+ tags.byteCountMSB = 3; -+ -+ - tags.serialNumber = eTags->serialNumber; - -- if (!dev->useNANDECC && data) { -+ if (!dev->useNANDECC && data) - yaffs_CalcECC(data, &spare); -- } -+ - yaffs_LoadTagsIntoSpare(&spare, &tags); - - } -@@ -427,15 +434,15 @@ int yaffs_TagsCompatabilityWriteChunkWit - return yaffs_WriteChunkToNAND(dev, chunkInNAND, data, &spare); - } - --int yaffs_TagsCompatabilityReadChunkWithTagsFromNAND(yaffs_Device * dev, -+int yaffs_TagsCompatabilityReadChunkWithTagsFromNAND(yaffs_Device *dev, - int chunkInNAND, -- __u8 * data, -- yaffs_ExtendedTags * eTags) -+ __u8 *data, -+ yaffs_ExtendedTags *eTags) - { - - yaffs_Spare spare; - yaffs_Tags tags; -- yaffs_ECCResult eccResult; -+ yaffs_ECCResult eccResult = YAFFS_ECC_RESULT_UNKNOWN; - - static yaffs_Spare spareFF; - static int init; -@@ -466,7 +473,11 @@ int yaffs_TagsCompatabilityReadChunkWith - - eTags->objectId = tags.objectId; - eTags->chunkId = tags.chunkId; -- eTags->byteCount = tags.byteCount; -+ eTags->byteCount = tags.byteCountLSB; -+ -+ if (dev->nDataBytesPerChunk >= 1024) -+ eTags->byteCount |= (((unsigned) tags.byteCountMSB) << 10); -+ - eTags->serialNumber = tags.serialNumber; - } - } -@@ -497,9 +508,9 @@ int yaffs_TagsCompatabilityMarkNANDBlock - } - - int yaffs_TagsCompatabilityQueryNANDBlock(struct yaffs_DeviceStruct *dev, -- int blockNo, yaffs_BlockState * -- state, -- int *sequenceNumber) -+ int blockNo, -+ yaffs_BlockState *state, -+ __u32 *sequenceNumber) - { - - yaffs_Spare spare0, spare1; ---- a/fs/yaffs2/yaffs_tagscompat.h -+++ b/fs/yaffs2/yaffs_tagscompat.h -@@ -17,24 +17,23 @@ - #define __YAFFS_TAGSCOMPAT_H__ - - #include "yaffs_guts.h" --int yaffs_TagsCompatabilityWriteChunkWithTagsToNAND(yaffs_Device * dev, -- int chunkInNAND, -- const __u8 * data, -- const yaffs_ExtendedTags * -- tags); --int yaffs_TagsCompatabilityReadChunkWithTagsFromNAND(yaffs_Device * dev, -- int chunkInNAND, -- __u8 * data, -- yaffs_ExtendedTags * -- tags); -+int yaffs_TagsCompatabilityWriteChunkWithTagsToNAND(yaffs_Device *dev, -+ int chunkInNAND, -+ const __u8 *data, -+ const yaffs_ExtendedTags *tags); -+int yaffs_TagsCompatabilityReadChunkWithTagsFromNAND(yaffs_Device *dev, -+ int chunkInNAND, -+ __u8 *data, -+ yaffs_ExtendedTags *tags); - int yaffs_TagsCompatabilityMarkNANDBlockBad(struct yaffs_DeviceStruct *dev, - int blockNo); - int yaffs_TagsCompatabilityQueryNANDBlock(struct yaffs_DeviceStruct *dev, -- int blockNo, yaffs_BlockState * -- state, int *sequenceNumber); -+ int blockNo, -+ yaffs_BlockState *state, -+ __u32 *sequenceNumber); - --void yaffs_CalcTagsECC(yaffs_Tags * tags); --int yaffs_CheckECCOnTags(yaffs_Tags * tags); -+void yaffs_CalcTagsECC(yaffs_Tags *tags); -+int yaffs_CheckECCOnTags(yaffs_Tags *tags); - int yaffs_CountBits(__u8 byte); - - #endif ---- a/fs/yaffs2/yaffs_tagsvalidity.c -+++ b/fs/yaffs2/yaffs_tagsvalidity.c -@@ -13,14 +13,14 @@ - - #include "yaffs_tagsvalidity.h" - --void yaffs_InitialiseTags(yaffs_ExtendedTags * tags) -+void yaffs_InitialiseTags(yaffs_ExtendedTags *tags) - { - memset(tags, 0, sizeof(yaffs_ExtendedTags)); - tags->validMarker0 = 0xAAAAAAAA; - tags->validMarker1 = 0x55555555; - } - --int yaffs_ValidateTags(yaffs_ExtendedTags * tags) -+int yaffs_ValidateTags(yaffs_ExtendedTags *tags) - { - return (tags->validMarker0 == 0xAAAAAAAA && - tags->validMarker1 == 0x55555555); ---- a/fs/yaffs2/yaffs_tagsvalidity.h -+++ b/fs/yaffs2/yaffs_tagsvalidity.h -@@ -19,6 +19,6 @@ - - #include "yaffs_guts.h" - --void yaffs_InitialiseTags(yaffs_ExtendedTags * tags); --int yaffs_ValidateTags(yaffs_ExtendedTags * tags); -+void yaffs_InitialiseTags(yaffs_ExtendedTags *tags); -+int yaffs_ValidateTags(yaffs_ExtendedTags *tags); - #endif ---- a/fs/yaffs2/yportenv.h -+++ b/fs/yaffs2/yportenv.h -@@ -17,17 +17,28 @@ - #ifndef __YPORTENV_H__ - #define __YPORTENV_H__ - -+/* -+ * Define the MTD version in terms of Linux Kernel versions -+ * This allows yaffs to be used independantly of the kernel -+ * as well as with it. -+ */ -+ -+#define MTD_VERSION(a, b, c) (((a) << 16) + ((b) << 8) + (c)) -+ - #if defined CONFIG_YAFFS_WINCE - - #include "ywinceenv.h" - --#elif defined __KERNEL__ -+#elif defined __KERNEL__ - - #include "moduleconfig.h" - - /* Linux kernel */ -+ - #include --#if (LINUX_VERSION_CODE < KERNEL_VERSION(2,6,19)) -+#define MTD_VERSION_CODE LINUX_VERSION_CODE -+ -+#if (LINUX_VERSION_CODE < KERNEL_VERSION(2, 6, 19)) - #include - #endif - #include -@@ -40,12 +51,13 @@ - #define YCHAR char - #define YUCHAR unsigned char - #define _Y(x) x --#define yaffs_strcpy(a,b) strcpy(a,b) --#define yaffs_strncpy(a,b,c) strncpy(a,b,c) --#define yaffs_strncmp(a,b,c) strncmp(a,b,c) --#define yaffs_strlen(s) strlen(s) --#define yaffs_sprintf sprintf --#define yaffs_toupper(a) toupper(a) -+#define yaffs_strcat(a, b) strcat(a, b) -+#define yaffs_strcpy(a, b) strcpy(a, b) -+#define yaffs_strncpy(a, b, c) strncpy(a, b, c) -+#define yaffs_strncmp(a, b, c) strncmp(a, b, c) -+#define yaffs_strlen(s) strlen(s) -+#define yaffs_sprintf sprintf -+#define yaffs_toupper(a) toupper(a) - - #define Y_INLINE inline - -@@ -53,19 +65,19 @@ - #define YAFFS_LOSTNFOUND_PREFIX "obj" - - /* #define YPRINTF(x) printk x */ --#define YMALLOC(x) kmalloc(x,GFP_KERNEL) -+#define YMALLOC(x) kmalloc(x, GFP_NOFS) - #define YFREE(x) kfree(x) - #define YMALLOC_ALT(x) vmalloc(x) - #define YFREE_ALT(x) vfree(x) - #define YMALLOC_DMA(x) YMALLOC(x) - --// KR - added for use in scan so processes aren't blocked indefinitely. -+/* KR - added for use in scan so processes aren't blocked indefinitely. */ - #define YYIELD() schedule() - - #define YAFFS_ROOT_MODE 0666 - #define YAFFS_LOSTNFOUND_MODE 0666 - --#if (LINUX_VERSION_CODE > KERNEL_VERSION(2,5,0)) -+#if (LINUX_VERSION_CODE > KERNEL_VERSION(2, 5, 0)) - #define Y_CURRENT_TIME CURRENT_TIME.tv_sec - #define Y_TIME_CONVERT(x) (x).tv_sec - #else -@@ -73,11 +85,12 @@ - #define Y_TIME_CONVERT(x) (x) - #endif - --#define yaffs_SumCompare(x,y) ((x) == (y)) --#define yaffs_strcmp(a,b) strcmp(a,b) -+#define yaffs_SumCompare(x, y) ((x) == (y)) -+#define yaffs_strcmp(a, b) strcmp(a, b) - - #define TENDSTR "\n" - #define TSTR(x) KERN_WARNING x -+#define TCONT(x) x - #define TOUT(p) printk p - - #define yaffs_trace(mask, fmt, args...) \ -@@ -90,6 +103,8 @@ - - #elif defined CONFIG_YAFFS_DIRECT - -+#define MTD_VERSION_CODE MTD_VERSION(2, 6, 22) -+ - /* Direct interface */ - #include "ydirectenv.h" - -@@ -111,11 +126,12 @@ - #define YCHAR char - #define YUCHAR unsigned char - #define _Y(x) x --#define yaffs_strcpy(a,b) strcpy(a,b) --#define yaffs_strncpy(a,b,c) strncpy(a,b,c) --#define yaffs_strlen(s) strlen(s) --#define yaffs_sprintf sprintf --#define yaffs_toupper(a) toupper(a) -+#define yaffs_strcat(a, b) strcat(a, b) -+#define yaffs_strcpy(a, b) strcpy(a, b) -+#define yaffs_strncpy(a, b, c) strncpy(a, b, c) -+#define yaffs_strlen(s) strlen(s) -+#define yaffs_sprintf sprintf -+#define yaffs_toupper(a) toupper(a) - - #define Y_INLINE inline - -@@ -133,8 +149,8 @@ - #define YAFFS_ROOT_MODE 0666 - #define YAFFS_LOSTNFOUND_MODE 0666 - --#define yaffs_SumCompare(x,y) ((x) == (y)) --#define yaffs_strcmp(a,b) strcmp(a,b) -+#define yaffs_SumCompare(x, y) ((x) == (y)) -+#define yaffs_strcmp(a, b) strcmp(a, b) - - #else - /* Should have specified a configuration type */ -@@ -178,10 +194,10 @@ extern unsigned int yaffs_wr_attempts; - #define YAFFS_TRACE_ALWAYS 0xF0000000 - - --#define T(mask,p) do{ if((mask) & (yaffs_traceMask | YAFFS_TRACE_ALWAYS)) TOUT(p);} while(0) -+#define T(mask, p) do { if ((mask) & (yaffs_traceMask | YAFFS_TRACE_ALWAYS)) TOUT(p); } while (0) - --#ifndef CONFIG_YAFFS_WINCE --#define YBUG() T(YAFFS_TRACE_BUG,(TSTR("==>> yaffs bug: " __FILE__ " %d" TENDSTR),__LINE__)) -+#ifndef YBUG -+#define YBUG() do {T(YAFFS_TRACE_BUG, (TSTR("==>> yaffs bug: " __FILE__ " %d" TENDSTR), __LINE__)); } while (0) - #endif - - #endif diff --git a/target/linux/generic/patches-2.6.39/511-yaffs-git-2010-10-20.patch b/target/linux/generic/patches-2.6.39/511-yaffs-git-2010-10-20.patch deleted file mode 100644 index 2f4e6ef83be..00000000000 --- a/target/linux/generic/patches-2.6.39/511-yaffs-git-2010-10-20.patch +++ /dev/null @@ -1,27068 +0,0 @@ ---- a/fs/Kconfig -+++ b/fs/Kconfig -@@ -35,7 +35,6 @@ source "fs/gfs2/Kconfig" - source "fs/ocfs2/Kconfig" - source "fs/btrfs/Kconfig" - source "fs/nilfs2/Kconfig" --source "fs/yaffs2/Kconfig" - - endif # BLOCK - -@@ -177,6 +176,10 @@ source "fs/hfsplus/Kconfig" - source "fs/befs/Kconfig" - source "fs/bfs/Kconfig" - source "fs/efs/Kconfig" -+ -+# Patched by YAFFS -+source "fs/yaffs2/Kconfig" -+ - source "fs/jffs2/Kconfig" - # UBIFS File system configuration - source "fs/ubifs/Kconfig" ---- a/fs/Makefile -+++ b/fs/Makefile -@@ -125,5 +125,6 @@ obj-$(CONFIG_GFS2_FS) += gfs2/ - obj-$(CONFIG_EXOFS_FS) += exofs/ - obj-$(CONFIG_CEPH_FS) += ceph/ - obj-$(CONFIG_PSTORE) += pstore/ --obj-$(CONFIG_YAFFS_FS) += yaffs2/ - -+# Patched by YAFFS -+obj-$(CONFIG_YAFFS_FS) += yaffs2/ ---- a/fs/yaffs2/devextras.h -+++ b/fs/yaffs2/devextras.h -@@ -1,7 +1,7 @@ - /* - * YAFFS: Yet another Flash File System . A NAND-flash specific file system. - * -- * Copyright (C) 2002-2007 Aleph One Ltd. -+ * Copyright (C) 2002-2010 Aleph One Ltd. - * for Toby Churchill Ltd and Brightstar Engineering - * - * Created by Charles Manning -@@ -24,6 +24,8 @@ - #define __EXTRAS_H__ - - -+#include "yportenv.h" -+ - #if !(defined __KERNEL__) - - /* Definition of types */ -@@ -33,103 +35,6 @@ typedef unsigned __u32; - - #endif - --/* -- * This is a simple doubly linked list implementation that matches the -- * way the Linux kernel doubly linked list implementation works. -- */ -- --struct ylist_head { -- struct ylist_head *next; /* next in chain */ -- struct ylist_head *prev; /* previous in chain */ --}; -- -- --/* Initialise a static list */ --#define YLIST_HEAD(name) \ --struct ylist_head name = { &(name), &(name)} -- -- -- --/* Initialise a list head to an empty list */ --#define YINIT_LIST_HEAD(p) \ --do { \ -- (p)->next = (p);\ -- (p)->prev = (p); \ --} while (0) -- -- --/* Add an element to a list */ --static __inline__ void ylist_add(struct ylist_head *newEntry, -- struct ylist_head *list) --{ -- struct ylist_head *listNext = list->next; -- -- list->next = newEntry; -- newEntry->prev = list; -- newEntry->next = listNext; -- listNext->prev = newEntry; -- --} -- --static __inline__ void ylist_add_tail(struct ylist_head *newEntry, -- struct ylist_head *list) --{ -- struct ylist_head *listPrev = list->prev; -- -- list->prev = newEntry; -- newEntry->next = list; -- newEntry->prev = listPrev; -- listPrev->next = newEntry; -- --} -- -- --/* Take an element out of its current list, with or without -- * reinitialising the links.of the entry*/ --static __inline__ void ylist_del(struct ylist_head *entry) --{ -- struct ylist_head *listNext = entry->next; -- struct ylist_head *listPrev = entry->prev; -- -- listNext->prev = listPrev; -- listPrev->next = listNext; -- --} -- --static __inline__ void ylist_del_init(struct ylist_head *entry) --{ -- ylist_del(entry); -- entry->next = entry->prev = entry; --} -- -- --/* Test if the list is empty */ --static __inline__ int ylist_empty(struct ylist_head *entry) --{ -- return (entry->next == entry); --} -- -- --/* ylist_entry takes a pointer to a list entry and offsets it to that -- * we can find a pointer to the object it is embedded in. -- */ -- -- --#define ylist_entry(entry, type, member) \ -- ((type *)((char *)(entry)-(unsigned long)(&((type *)NULL)->member))) -- -- --/* ylist_for_each and list_for_each_safe iterate over lists. -- * ylist_for_each_safe uses temporary storage to make the list delete safe -- */ -- --#define ylist_for_each(itervar, list) \ -- for (itervar = (list)->next; itervar != (list); itervar = itervar->next) -- --#define ylist_for_each_safe(itervar, saveVar, list) \ -- for (itervar = (list)->next, saveVar = (list)->next->next; \ -- itervar != (list); itervar = saveVar, saveVar = saveVar->next) -- - - #if !(defined __KERNEL__) - ---- a/fs/yaffs2/Kconfig -+++ b/fs/yaffs2/Kconfig -@@ -90,23 +90,15 @@ config YAFFS_AUTO_YAFFS2 - - If unsure, say Y. - --config YAFFS_DISABLE_LAZY_LOAD -- bool "Disable lazy loading" -- depends on YAFFS_YAFFS2 -+config YAFFS_DISABLE_TAGS_ECC -+ bool "Disable YAFFS from doing ECC on tags by default" -+ depends on YAFFS_FS && YAFFS_YAFFS2 - default n - help -- "Lazy loading" defers loading file details until they are -- required. This saves mount time, but makes the first look-up -- a bit longer. -- -- Lazy loading will only happen if enabled by this option being 'n' -- and if the appropriate tags are available, else yaffs2 will -- automatically fall back to immediate loading and do the right -- thing. -- -- Lazy laoding will be required by checkpointing. -- -- Setting this to 'y' will disable lazy loading. -+ This defaults Yaffs to using its own ECC calculations on tags instead of -+ just relying on the MTD. -+ This behavior can also be overridden with tags_ecc_on and -+ tags_ecc_off mount options. - - If unsure, say N. - -@@ -154,3 +146,45 @@ config YAFFS_SHORT_NAMES_IN_RAM - but makes look-ups faster. - - If unsure, say Y. -+ -+config YAFFS_EMPTY_LOST_AND_FOUND -+ bool "Empty lost and found on boot" -+ depends on YAFFS_FS -+ default n -+ help -+ If this is enabled then the contents of lost and found is -+ automatically dumped at mount. -+ -+ If unsure, say N. -+ -+config YAFFS_DISABLE_BLOCK_REFRESHING -+ bool "Disable yaffs2 block refreshing" -+ depends on YAFFS_FS -+ default n -+ help -+ If this is set, then block refreshing is disabled. -+ Block refreshing infrequently refreshes the oldest block in -+ a yaffs2 file system. This mechanism helps to refresh flash to -+ mitigate against data loss. This is particularly useful for MLC. -+ -+ If unsure, say N. -+ -+config YAFFS_DISABLE_BACKGROUND -+ bool "Disable yaffs2 background processing" -+ depends on YAFFS_FS -+ default n -+ help -+ If this is set, then background processing is disabled. -+ Background processing makes many foreground activities faster. -+ -+ If unsure, say N. -+ -+config YAFFS_XATTR -+ bool "Enable yaffs2 xattr support" -+ depends on YAFFS_FS -+ default y -+ help -+ If this is set then yaffs2 will provide xattr support. -+ If unsure, say Y. -+ -+ ---- a/fs/yaffs2/Makefile -+++ b/fs/yaffs2/Makefile -@@ -4,7 +4,14 @@ - - obj-$(CONFIG_YAFFS_FS) += yaffs.o - --yaffs-y := yaffs_ecc.o yaffs_fs.o yaffs_guts.o yaffs_checkptrw.o --yaffs-y += yaffs_packedtags1.o yaffs_packedtags2.o yaffs_nand.o yaffs_qsort.o -+yaffs-y := yaffs_ecc.o yaffs_vfs_glue.o yaffs_guts.o yaffs_checkptrw.o -+yaffs-y += yaffs_packedtags1.o yaffs_packedtags2.o yaffs_nand.o - yaffs-y += yaffs_tagscompat.o yaffs_tagsvalidity.o - yaffs-y += yaffs_mtdif.o yaffs_mtdif1.o yaffs_mtdif2.o -+yaffs-y += yaffs_nameval.o -+yaffs-y += yaffs_allocator.o -+yaffs-y += yaffs_yaffs1.o -+yaffs-y += yaffs_yaffs2.o -+yaffs-y += yaffs_bitmap.o -+yaffs-y += yaffs_verify.o -+ ---- a/fs/yaffs2/moduleconfig.h -+++ b/fs/yaffs2/moduleconfig.h -@@ -1,7 +1,7 @@ - /* - * YAFFS: Yet another Flash File System . A NAND-flash specific file system. - * -- * Copyright (C) 2002-2007 Aleph One Ltd. -+ * Copyright (C) 2002-2010 Aleph One Ltd. - * for Toby Churchill Ltd and Brightstar Engineering - * - * Created by Martin Fouts -@@ -29,25 +29,46 @@ - /* Meaning: Yaffs does its own ECC, rather than using MTD ECC */ - /* #define CONFIG_YAFFS_DOES_ECC */ - -+/* Default: Selected */ -+/* Meaning: Yaffs does its own ECC on tags for packed tags rather than use mtd */ -+#define CONFIG_YAFFS_DOES_TAGS_ECC -+ - /* Default: Not selected */ - /* Meaning: ECC byte order is 'wrong'. Only meaningful if */ - /* CONFIG_YAFFS_DOES_ECC is set */ - /* #define CONFIG_YAFFS_ECC_WRONG_ORDER */ - --/* Default: Selected */ --/* Meaning: Disables testing whether chunks are erased before writing to them*/ --#define CONFIG_YAFFS_DISABLE_CHUNK_ERASED_CHECK -+/* Default: Not selected */ -+/* Meaning: Always test whether chunks are erased before writing to them. -+ Use during mtd debugging and init. */ -+/* #define CONFIG_YAFFS_ALWAYS_CHECK_CHUNK_ERASED */ -+ -+/* Default: Not Selected */ -+/* Meaning: At mount automatically empty all files from lost and found. */ -+/* This is done to fix an old problem where rmdir was not checking for an */ -+/* empty directory. This can also be achieved with a mount option. */ -+#define CONFIG_YAFFS_EMPTY_LOST_AND_FOUND - - /* Default: Selected */ - /* Meaning: Cache short names, taking more RAM, but faster look-ups */ - #define CONFIG_YAFFS_SHORT_NAMES_IN_RAM - --/* Default: 10 */ --/* Meaning: set the count of blocks to reserve for checkpointing */ --#define CONFIG_YAFFS_CHECKPOINT_RESERVED_BLOCKS 10 -+/* Default: Unselected */ -+/* Meaning: Select to disable block refreshing. */ -+/* Block Refreshing periodically rewrites the oldest block. */ -+/* #define CONFIG_DISABLE_BLOCK_REFRESHING */ -+ -+/* Default: Unselected */ -+/* Meaning: Select to disable background processing */ -+/* #define CONFIG_DISABLE_BACKGROUND */ -+ -+ -+/* Default: Selected */ -+/* Meaning: Enable XATTR support */ -+#define CONFIG_YAFFS_XATTR - - /* --Older-style on-NAND data format has a "pageStatus" byte to record -+Older-style on-NAND data format has a "page_status" byte to record - chunk/page state. This byte is zeroed when the page is discarded. - Choose this option if you have existing on-NAND data in this format - that you need to continue to support. New data written also uses the -@@ -57,7 +78,7 @@ adjusted to use the older-style format. - MTD versions in yaffs_mtdif1.c. - */ - /* Default: Not selected */ --/* Meaning: Use older-style on-NAND data format with pageStatus byte */ -+/* Meaning: Use older-style on-NAND data format with page_status byte */ - /* #define CONFIG_YAFFS_9BYTE_TAGS */ - - #endif /* YAFFS_OUT_OF_TREE */ ---- /dev/null -+++ b/fs/yaffs2/yaffs_allocator.c -@@ -0,0 +1,409 @@ -+/* -+ * YAFFS: Yet another Flash File System . A NAND-flash specific file system. -+ * -+ * Copyright (C) 2002-2010 Aleph One Ltd. -+ * for Toby Churchill Ltd and Brightstar Engineering -+ * -+ * Created by Charles Manning -+ * -+ * This program is free software; you can redistribute it and/or modify -+ * it under the terms of the GNU Lesser General Public License version 2.1 as -+ * published by the Free Software Foundation. -+ * -+ * Note: Only YAFFS headers are LGPL, YAFFS C code is covered by GPL. -+ */ -+ -+ -+#include "yaffs_allocator.h" -+#include "yaffs_guts.h" -+#include "yaffs_trace.h" -+#include "yportenv.h" -+ -+#ifdef CONFIG_YAFFS_YMALLOC_ALLOCATOR -+ -+void yaffs_deinit_raw_tnodes_and_objs(yaffs_dev_t *dev) -+{ -+ dev = dev; -+} -+ -+void yaffs_init_raw_tnodes_and_objs(yaffs_dev_t *dev) -+{ -+ dev = dev; -+} -+ -+yaffs_tnode_t *yaffs_alloc_raw_tnode(yaffs_dev_t *dev) -+{ -+ return (yaffs_tnode_t *)YMALLOC(dev->tnode_size); -+} -+ -+void yaffs_free_raw_tnode(yaffs_dev_t *dev, yaffs_tnode_t *tn) -+{ -+ dev = dev; -+ YFREE(tn); -+} -+ -+void yaffs_init_raw_objs(yaffs_dev_t *dev) -+{ -+ dev = dev; -+} -+ -+void yaffs_deinit_raw_objs(yaffs_dev_t *dev) -+{ -+ dev = dev; -+} -+ -+yaffs_obj_t *yaffs_alloc_raw_obj(yaffs_dev_t *dev) -+{ -+ dev = dev; -+ return (yaffs_obj_t *) YMALLOC(sizeof(yaffs_obj_t)); -+} -+ -+ -+void yaffs_free_raw_obj(yaffs_dev_t *dev, yaffs_obj_t *obj) -+{ -+ -+ dev = dev; -+ YFREE(obj); -+} -+ -+#else -+ -+struct yaffs_tnode_list { -+ struct yaffs_tnode_list *next; -+ yaffs_tnode_t *tnodes; -+}; -+ -+typedef struct yaffs_tnode_list yaffs_tnodelist_t; -+ -+struct yaffs_obj_tList_struct { -+ yaffs_obj_t *objects; -+ struct yaffs_obj_tList_struct *next; -+}; -+ -+typedef struct yaffs_obj_tList_struct yaffs_obj_tList; -+ -+ -+struct yaffs_AllocatorStruct { -+ int n_tnodesCreated; -+ yaffs_tnode_t *freeTnodes; -+ int nFreeTnodes; -+ yaffs_tnodelist_t *allocatedTnodeList; -+ -+ int n_objCreated; -+ yaffs_obj_t *freeObjects; -+ int nFreeObjects; -+ -+ yaffs_obj_tList *allocatedObjectList; -+}; -+ -+typedef struct yaffs_AllocatorStruct yaffs_Allocator; -+ -+ -+static void yaffs_deinit_raw_tnodes(yaffs_dev_t *dev) -+{ -+ -+ yaffs_Allocator *allocator = (yaffs_Allocator *)dev->allocator; -+ -+ yaffs_tnodelist_t *tmp; -+ -+ if(!allocator){ -+ YBUG(); -+ return; -+ } -+ -+ while (allocator->allocatedTnodeList) { -+ tmp = allocator->allocatedTnodeList->next; -+ -+ YFREE(allocator->allocatedTnodeList->tnodes); -+ YFREE(allocator->allocatedTnodeList); -+ allocator->allocatedTnodeList = tmp; -+ -+ } -+ -+ allocator->freeTnodes = NULL; -+ allocator->nFreeTnodes = 0; -+ allocator->n_tnodesCreated = 0; -+} -+ -+static void yaffs_init_raw_tnodes(yaffs_dev_t *dev) -+{ -+ yaffs_Allocator *allocator = dev->allocator; -+ -+ if(allocator){ -+ allocator->allocatedTnodeList = NULL; -+ allocator->freeTnodes = NULL; -+ allocator->nFreeTnodes = 0; -+ allocator->n_tnodesCreated = 0; -+ } else -+ YBUG(); -+} -+ -+static int yaffs_create_tnodes(yaffs_dev_t *dev, int n_tnodes) -+{ -+ yaffs_Allocator *allocator = (yaffs_Allocator *)dev->allocator; -+ int i; -+ yaffs_tnode_t *newTnodes; -+ __u8 *mem; -+ yaffs_tnode_t *curr; -+ yaffs_tnode_t *next; -+ yaffs_tnodelist_t *tnl; -+ -+ if(!allocator){ -+ YBUG(); -+ return YAFFS_FAIL; -+ } -+ -+ if (n_tnodes < 1) -+ return YAFFS_OK; -+ -+ -+ /* make these things */ -+ -+ newTnodes = YMALLOC(n_tnodes * dev->tnode_size); -+ mem = (__u8 *)newTnodes; -+ -+ if (!newTnodes) { -+ T(YAFFS_TRACE_ERROR, -+ (TSTR("yaffs: Could not allocate Tnodes" TENDSTR))); -+ return YAFFS_FAIL; -+ } -+ -+ /* New hookup for wide tnodes */ -+ for (i = 0; i < n_tnodes - 1; i++) { -+ curr = (yaffs_tnode_t *) &mem[i * dev->tnode_size]; -+ next = (yaffs_tnode_t *) &mem[(i+1) * dev->tnode_size]; -+ curr->internal[0] = next; -+ } -+ -+ curr = (yaffs_tnode_t *) &mem[(n_tnodes - 1) * dev->tnode_size]; -+ curr->internal[0] = allocator->freeTnodes; -+ allocator->freeTnodes = (yaffs_tnode_t *)mem; -+ -+ allocator->nFreeTnodes += n_tnodes; -+ allocator->n_tnodesCreated += n_tnodes; -+ -+ /* Now add this bunch of tnodes to a list for freeing up. -+ * NB If we can't add this to the management list it isn't fatal -+ * but it just means we can't free this bunch of tnodes later. -+ */ -+ -+ tnl = YMALLOC(sizeof(yaffs_tnodelist_t)); -+ if (!tnl) { -+ T(YAFFS_TRACE_ERROR, -+ (TSTR -+ ("yaffs: Could not add tnodes to management list" TENDSTR))); -+ return YAFFS_FAIL; -+ } else { -+ tnl->tnodes = newTnodes; -+ tnl->next = allocator->allocatedTnodeList; -+ allocator->allocatedTnodeList = tnl; -+ } -+ -+ T(YAFFS_TRACE_ALLOCATE, (TSTR("yaffs: Tnodes added" TENDSTR))); -+ -+ return YAFFS_OK; -+} -+ -+ -+yaffs_tnode_t *yaffs_alloc_raw_tnode(yaffs_dev_t *dev) -+{ -+ yaffs_Allocator *allocator = (yaffs_Allocator *)dev->allocator; -+ yaffs_tnode_t *tn = NULL; -+ -+ if(!allocator){ -+ YBUG(); -+ return NULL; -+ } -+ -+ /* If there are none left make more */ -+ if (!allocator->freeTnodes) -+ yaffs_create_tnodes(dev, YAFFS_ALLOCATION_NTNODES); -+ -+ if (allocator->freeTnodes) { -+ tn = allocator->freeTnodes; -+ allocator->freeTnodes = allocator->freeTnodes->internal[0]; -+ allocator->nFreeTnodes--; -+ } -+ -+ return tn; -+} -+ -+/* FreeTnode frees up a tnode and puts it back on the free list */ -+void yaffs_free_raw_tnode(yaffs_dev_t *dev, yaffs_tnode_t *tn) -+{ -+ yaffs_Allocator *allocator = dev->allocator; -+ -+ if(!allocator){ -+ YBUG(); -+ return; -+ } -+ -+ if (tn) { -+ tn->internal[0] = allocator->freeTnodes; -+ allocator->freeTnodes = tn; -+ allocator->nFreeTnodes++; -+ } -+ dev->checkpoint_blocks_required = 0; /* force recalculation*/ -+} -+ -+ -+ -+static void yaffs_init_raw_objs(yaffs_dev_t *dev) -+{ -+ yaffs_Allocator *allocator = dev->allocator; -+ -+ if(allocator) { -+ allocator->allocatedObjectList = NULL; -+ allocator->freeObjects = NULL; -+ allocator->nFreeObjects = 0; -+ } else -+ YBUG(); -+} -+ -+static void yaffs_deinit_raw_objs(yaffs_dev_t *dev) -+{ -+ yaffs_Allocator *allocator = dev->allocator; -+ yaffs_obj_tList *tmp; -+ -+ if(!allocator){ -+ YBUG(); -+ return; -+ } -+ -+ while (allocator->allocatedObjectList) { -+ tmp = allocator->allocatedObjectList->next; -+ YFREE(allocator->allocatedObjectList->objects); -+ YFREE(allocator->allocatedObjectList); -+ -+ allocator->allocatedObjectList = tmp; -+ } -+ -+ allocator->freeObjects = NULL; -+ allocator->nFreeObjects = 0; -+ allocator->n_objCreated = 0; -+} -+ -+ -+static int yaffs_create_free_objs(yaffs_dev_t *dev, int n_obj) -+{ -+ yaffs_Allocator *allocator = dev->allocator; -+ -+ int i; -+ yaffs_obj_t *newObjects; -+ yaffs_obj_tList *list; -+ -+ if(!allocator){ -+ YBUG(); -+ return YAFFS_FAIL; -+ } -+ -+ if (n_obj < 1) -+ return YAFFS_OK; -+ -+ /* make these things */ -+ newObjects = YMALLOC(n_obj * sizeof(yaffs_obj_t)); -+ list = YMALLOC(sizeof(yaffs_obj_tList)); -+ -+ if (!newObjects || !list) { -+ if (newObjects){ -+ YFREE(newObjects); -+ newObjects = NULL; -+ } -+ if (list){ -+ YFREE(list); -+ list = NULL; -+ } -+ T(YAFFS_TRACE_ALLOCATE, -+ (TSTR("yaffs: Could not allocate more objects" TENDSTR))); -+ return YAFFS_FAIL; -+ } -+ -+ /* Hook them into the free list */ -+ for (i = 0; i < n_obj - 1; i++) { -+ newObjects[i].siblings.next = -+ (struct ylist_head *)(&newObjects[i + 1]); -+ } -+ -+ newObjects[n_obj - 1].siblings.next = (void *)allocator->freeObjects; -+ allocator->freeObjects = newObjects; -+ allocator->nFreeObjects += n_obj; -+ allocator->n_objCreated += n_obj; -+ -+ /* Now add this bunch of Objects to a list for freeing up. */ -+ -+ list->objects = newObjects; -+ list->next = allocator->allocatedObjectList; -+ allocator->allocatedObjectList = list; -+ -+ return YAFFS_OK; -+} -+ -+yaffs_obj_t *yaffs_alloc_raw_obj(yaffs_dev_t *dev) -+{ -+ yaffs_obj_t *obj = NULL; -+ yaffs_Allocator *allocator = dev->allocator; -+ -+ if(!allocator) { -+ YBUG(); -+ return obj; -+ } -+ -+ /* If there are none left make more */ -+ if (!allocator->freeObjects) -+ yaffs_create_free_objs(dev, YAFFS_ALLOCATION_NOBJECTS); -+ -+ if (allocator->freeObjects) { -+ obj = allocator->freeObjects; -+ allocator->freeObjects = -+ (yaffs_obj_t *) (allocator->freeObjects->siblings.next); -+ allocator->nFreeObjects--; -+ } -+ -+ return obj; -+} -+ -+ -+void yaffs_free_raw_obj(yaffs_dev_t *dev, yaffs_obj_t *obj) -+{ -+ -+ yaffs_Allocator *allocator = dev->allocator; -+ -+ if(!allocator) -+ YBUG(); -+ else { -+ /* Link into the free list. */ -+ obj->siblings.next = (struct ylist_head *)(allocator->freeObjects); -+ allocator->freeObjects = obj; -+ allocator->nFreeObjects++; -+ } -+} -+ -+void yaffs_deinit_raw_tnodes_and_objs(yaffs_dev_t *dev) -+{ -+ if(dev->allocator){ -+ yaffs_deinit_raw_tnodes(dev); -+ yaffs_deinit_raw_objs(dev); -+ -+ YFREE(dev->allocator); -+ dev->allocator=NULL; -+ } else -+ YBUG(); -+} -+ -+void yaffs_init_raw_tnodes_and_objs(yaffs_dev_t *dev) -+{ -+ yaffs_Allocator *allocator; -+ -+ if(!dev->allocator){ -+ allocator = YMALLOC(sizeof(yaffs_Allocator)); -+ if(allocator){ -+ dev->allocator = allocator; -+ yaffs_init_raw_tnodes(dev); -+ yaffs_init_raw_objs(dev); -+ } -+ } else -+ YBUG(); -+} -+ -+ -+#endif ---- /dev/null -+++ b/fs/yaffs2/yaffs_allocator.h -@@ -0,0 +1,30 @@ -+/* -+ * YAFFS: Yet another Flash File System . A NAND-flash specific file system. -+ * -+ * Copyright (C) 2002-2010 Aleph One Ltd. -+ * for Toby Churchill Ltd and Brightstar Engineering -+ * -+ * Created by Charles Manning -+ * -+ * This program is free software; you can redistribute it and/or modify -+ * it under the terms of the GNU Lesser General Public License version 2.1 as -+ * published by the Free Software Foundation. -+ * -+ * Note: Only YAFFS headers are LGPL, YAFFS C code is covered by GPL. -+ */ -+ -+#ifndef __YAFFS_ALLOCATOR_H__ -+#define __YAFFS_ALLOCATOR_H__ -+ -+#include "yaffs_guts.h" -+ -+void yaffs_init_raw_tnodes_and_objs(yaffs_dev_t *dev); -+void yaffs_deinit_raw_tnodes_and_objs(yaffs_dev_t *dev); -+ -+yaffs_tnode_t *yaffs_alloc_raw_tnode(yaffs_dev_t *dev); -+void yaffs_free_raw_tnode(yaffs_dev_t *dev, yaffs_tnode_t *tn); -+ -+yaffs_obj_t *yaffs_alloc_raw_obj(yaffs_dev_t *dev); -+void yaffs_free_raw_obj(yaffs_dev_t *dev, yaffs_obj_t *obj); -+ -+#endif ---- /dev/null -+++ b/fs/yaffs2/yaffs_bitmap.c -@@ -0,0 +1,105 @@ -+/* -+ * YAFFS: Yet Another Flash File System. A NAND-flash specific file system. -+ * -+ * Copyright (C) 2002-2010 Aleph One Ltd. -+ * for Toby Churchill Ltd and Brightstar Engineering -+ * -+ * Created by Charles Manning -+ * -+ * This program is free software; you can redistribute it and/or modify -+ * it under the terms of the GNU General Public License version 2 as -+ * published by the Free Software Foundation. -+ */ -+ -+#include "yaffs_bitmap.h" -+#include "yaffs_trace.h" -+/* -+ * Chunk bitmap manipulations -+ */ -+ -+static Y_INLINE __u8 *yaffs_BlockBits(yaffs_dev_t *dev, int blk) -+{ -+ if (blk < dev->internal_start_block || blk > dev->internal_end_block) { -+ T(YAFFS_TRACE_ERROR, -+ (TSTR("**>> yaffs: BlockBits block %d is not valid" TENDSTR), -+ blk)); -+ YBUG(); -+ } -+ return dev->chunk_bits + -+ (dev->chunk_bit_stride * (blk - dev->internal_start_block)); -+} -+ -+void yaffs_verify_chunk_bit_id(yaffs_dev_t *dev, int blk, int chunk) -+{ -+ if (blk < dev->internal_start_block || blk > dev->internal_end_block || -+ chunk < 0 || chunk >= dev->param.chunks_per_block) { -+ T(YAFFS_TRACE_ERROR, -+ (TSTR("**>> yaffs: Chunk Id (%d:%d) invalid"TENDSTR), -+ blk, chunk)); -+ YBUG(); -+ } -+} -+ -+void yaffs_clear_chunk_bits(yaffs_dev_t *dev, int blk) -+{ -+ __u8 *blkBits = yaffs_BlockBits(dev, blk); -+ -+ memset(blkBits, 0, dev->chunk_bit_stride); -+} -+ -+void yaffs_clear_chunk_bit(yaffs_dev_t *dev, int blk, int chunk) -+{ -+ __u8 *blkBits = yaffs_BlockBits(dev, blk); -+ -+ yaffs_verify_chunk_bit_id(dev, blk, chunk); -+ -+ blkBits[chunk / 8] &= ~(1 << (chunk & 7)); -+} -+ -+void yaffs_set_chunk_bit(yaffs_dev_t *dev, int blk, int chunk) -+{ -+ __u8 *blkBits = yaffs_BlockBits(dev, blk); -+ -+ yaffs_verify_chunk_bit_id(dev, blk, chunk); -+ -+ blkBits[chunk / 8] |= (1 << (chunk & 7)); -+} -+ -+int yaffs_check_chunk_bit(yaffs_dev_t *dev, int blk, int chunk) -+{ -+ __u8 *blkBits = yaffs_BlockBits(dev, blk); -+ yaffs_verify_chunk_bit_id(dev, blk, chunk); -+ -+ return (blkBits[chunk / 8] & (1 << (chunk & 7))) ? 1 : 0; -+} -+ -+int yaffs_still_some_chunks(yaffs_dev_t *dev, int blk) -+{ -+ __u8 *blkBits = yaffs_BlockBits(dev, blk); -+ int i; -+ for (i = 0; i < dev->chunk_bit_stride; i++) { -+ if (*blkBits) -+ return 1; -+ blkBits++; -+ } -+ return 0; -+} -+ -+int yaffs_count_chunk_bits(yaffs_dev_t *dev, int blk) -+{ -+ __u8 *blkBits = yaffs_BlockBits(dev, blk); -+ int i; -+ int n = 0; -+ for (i = 0; i < dev->chunk_bit_stride; i++) { -+ __u8 x = *blkBits; -+ while (x) { -+ if (x & 1) -+ n++; -+ x >>= 1; -+ } -+ -+ blkBits++; -+ } -+ return n; -+} -+ ---- /dev/null -+++ b/fs/yaffs2/yaffs_bitmap.h -@@ -0,0 +1,31 @@ -+/* -+ * YAFFS: Yet Another Flash File System. A NAND-flash specific file system. -+ * -+ * Copyright (C) 2002-2010 Aleph One Ltd. -+ * for Toby Churchill Ltd and Brightstar Engineering -+ * -+ * Created by Charles Manning -+ * -+ * This program is free software; you can redistribute it and/or modify -+ * it under the terms of the GNU General Public License version 2 as -+ * published by the Free Software Foundation. -+ */ -+ -+/* -+ * Chunk bitmap manipulations -+ */ -+ -+#ifndef __YAFFS_BITMAP_H__ -+#define __YAFFS_BITMAP_H__ -+ -+#include "yaffs_guts.h" -+ -+void yaffs_verify_chunk_bit_id(yaffs_dev_t *dev, int blk, int chunk); -+void yaffs_clear_chunk_bits(yaffs_dev_t *dev, int blk); -+void yaffs_clear_chunk_bit(yaffs_dev_t *dev, int blk, int chunk); -+void yaffs_set_chunk_bit(yaffs_dev_t *dev, int blk, int chunk); -+int yaffs_check_chunk_bit(yaffs_dev_t *dev, int blk, int chunk); -+int yaffs_still_some_chunks(yaffs_dev_t *dev, int blk); -+int yaffs_count_chunk_bits(yaffs_dev_t *dev, int blk); -+ -+#endif ---- a/fs/yaffs2/yaffs_checkptrw.c -+++ b/fs/yaffs2/yaffs_checkptrw.c -@@ -1,7 +1,7 @@ - /* - * YAFFS: Yet Another Flash File System. A NAND-flash specific file system. - * -- * Copyright (C) 2002-2007 Aleph One Ltd. -+ * Copyright (C) 2002-2010 Aleph One Ltd. - * for Toby Churchill Ltd and Brightstar Engineering - * - * Created by Charles Manning -@@ -11,16 +11,12 @@ - * published by the Free Software Foundation. - */ - --const char *yaffs_checkptrw_c_version = -- "$Id: yaffs_checkptrw.c,v 1.18 2009-03-06 17:20:49 wookey Exp $"; -- -- - #include "yaffs_checkptrw.h" - #include "yaffs_getblockinfo.h" - --static int yaffs_CheckpointSpaceOk(yaffs_Device *dev) -+static int yaffs2_checkpt_space_ok(yaffs_dev_t *dev) - { -- int blocksAvailable = dev->nErasedBlocks - dev->nReservedBlocks; -+ int blocksAvailable = dev->n_erased_blocks - dev->param.n_reserved_blocks; - - T(YAFFS_TRACE_CHECKPOINT, - (TSTR("checkpt blocks available = %d" TENDSTR), -@@ -30,53 +26,56 @@ static int yaffs_CheckpointSpaceOk(yaffs - } - - --static int yaffs_CheckpointErase(yaffs_Device *dev) -+static int yaffs_checkpt_erase(yaffs_dev_t *dev) - { - int i; - -- if (!dev->eraseBlockInNAND) -+ if (!dev->param.erase_fn) - return 0; - T(YAFFS_TRACE_CHECKPOINT, (TSTR("checking blocks %d to %d"TENDSTR), -- dev->internalStartBlock, dev->internalEndBlock)); -+ dev->internal_start_block, dev->internal_end_block)); - -- for (i = dev->internalStartBlock; i <= dev->internalEndBlock; i++) { -- yaffs_BlockInfo *bi = yaffs_GetBlockInfo(dev, i); -- if (bi->blockState == YAFFS_BLOCK_STATE_CHECKPOINT) { -+ for (i = dev->internal_start_block; i <= dev->internal_end_block; i++) { -+ yaffs_block_info_t *bi = yaffs_get_block_info(dev, i); -+ if (bi->block_state == YAFFS_BLOCK_STATE_CHECKPOINT) { - T(YAFFS_TRACE_CHECKPOINT, (TSTR("erasing checkpt block %d"TENDSTR), i)); -- if (dev->eraseBlockInNAND(dev, i - dev->blockOffset /* realign */)) { -- bi->blockState = YAFFS_BLOCK_STATE_EMPTY; -- dev->nErasedBlocks++; -- dev->nFreeChunks += dev->nChunksPerBlock; -+ -+ dev->n_erasures++; -+ -+ if (dev->param.erase_fn(dev, i - dev->block_offset /* realign */)) { -+ bi->block_state = YAFFS_BLOCK_STATE_EMPTY; -+ dev->n_erased_blocks++; -+ dev->n_free_chunks += dev->param.chunks_per_block; - } else { -- dev->markNANDBlockBad(dev, i); -- bi->blockState = YAFFS_BLOCK_STATE_DEAD; -+ dev->param.bad_block_fn(dev, i); -+ bi->block_state = YAFFS_BLOCK_STATE_DEAD; - } - } - } - -- dev->blocksInCheckpoint = 0; -+ dev->blocks_in_checkpt = 0; - - return 1; - } - - --static void yaffs_CheckpointFindNextErasedBlock(yaffs_Device *dev) -+static void yaffs2_checkpt_find_erased_block(yaffs_dev_t *dev) - { - int i; -- int blocksAvailable = dev->nErasedBlocks - dev->nReservedBlocks; -+ int blocksAvailable = dev->n_erased_blocks - dev->param.n_reserved_blocks; - T(YAFFS_TRACE_CHECKPOINT, - (TSTR("allocating checkpt block: erased %d reserved %d avail %d next %d "TENDSTR), -- dev->nErasedBlocks, dev->nReservedBlocks, blocksAvailable, dev->checkpointNextBlock)); -+ dev->n_erased_blocks, dev->param.n_reserved_blocks, blocksAvailable, dev->checkpt_next_block)); - -- if (dev->checkpointNextBlock >= 0 && -- dev->checkpointNextBlock <= dev->internalEndBlock && -+ if (dev->checkpt_next_block >= 0 && -+ dev->checkpt_next_block <= dev->internal_end_block && - blocksAvailable > 0) { - -- for (i = dev->checkpointNextBlock; i <= dev->internalEndBlock; i++) { -- yaffs_BlockInfo *bi = yaffs_GetBlockInfo(dev, i); -- if (bi->blockState == YAFFS_BLOCK_STATE_EMPTY) { -- dev->checkpointNextBlock = i + 1; -- dev->checkpointCurrentBlock = i; -+ for (i = dev->checkpt_next_block; i <= dev->internal_end_block; i++) { -+ yaffs_block_info_t *bi = yaffs_get_block_info(dev, i); -+ if (bi->block_state == YAFFS_BLOCK_STATE_EMPTY) { -+ dev->checkpt_next_block = i + 1; -+ dev->checkpt_cur_block = i; - T(YAFFS_TRACE_CHECKPOINT, (TSTR("allocating checkpt block %d"TENDSTR), i)); - return; - } -@@ -84,34 +83,34 @@ static void yaffs_CheckpointFindNextEras - } - T(YAFFS_TRACE_CHECKPOINT, (TSTR("out of checkpt blocks"TENDSTR))); - -- dev->checkpointNextBlock = -1; -- dev->checkpointCurrentBlock = -1; -+ dev->checkpt_next_block = -1; -+ dev->checkpt_cur_block = -1; - } - --static void yaffs_CheckpointFindNextCheckpointBlock(yaffs_Device *dev) -+static void yaffs2_checkpt_find_block(yaffs_dev_t *dev) - { - int i; -- yaffs_ExtendedTags tags; -+ yaffs_ext_tags tags; - - T(YAFFS_TRACE_CHECKPOINT, (TSTR("find next checkpt block: start: blocks %d next %d" TENDSTR), -- dev->blocksInCheckpoint, dev->checkpointNextBlock)); -+ dev->blocks_in_checkpt, dev->checkpt_next_block)); - -- if (dev->blocksInCheckpoint < dev->checkpointMaxBlocks) -- for (i = dev->checkpointNextBlock; i <= dev->internalEndBlock; i++) { -- int chunk = i * dev->nChunksPerBlock; -- int realignedChunk = chunk - dev->chunkOffset; -+ if (dev->blocks_in_checkpt < dev->checkpt_max_blocks) -+ for (i = dev->checkpt_next_block; i <= dev->internal_end_block; i++) { -+ int chunk = i * dev->param.chunks_per_block; -+ int realignedChunk = chunk - dev->chunk_offset; - -- dev->readChunkWithTagsFromNAND(dev, realignedChunk, -+ dev->param.read_chunk_tags_fn(dev, realignedChunk, - NULL, &tags); - T(YAFFS_TRACE_CHECKPOINT, (TSTR("find next checkpt block: search: block %d oid %d seq %d eccr %d" TENDSTR), -- i, tags.objectId, tags.sequenceNumber, tags.eccResult)); -+ i, tags.obj_id, tags.seq_number, tags.ecc_result)); - -- if (tags.sequenceNumber == YAFFS_SEQUENCE_CHECKPOINT_DATA) { -+ if (tags.seq_number == YAFFS_SEQUENCE_CHECKPOINT_DATA) { - /* Right kind of block */ -- dev->checkpointNextBlock = tags.objectId; -- dev->checkpointCurrentBlock = i; -- dev->checkpointBlockList[dev->blocksInCheckpoint] = i; -- dev->blocksInCheckpoint++; -+ dev->checkpt_next_block = tags.obj_id; -+ dev->checkpt_cur_block = i; -+ dev->checkpt_block_list[dev->blocks_in_checkpt] = i; -+ dev->blocks_in_checkpt++; - T(YAFFS_TRACE_CHECKPOINT, (TSTR("found checkpt block %d"TENDSTR), i)); - return; - } -@@ -119,122 +118,127 @@ static void yaffs_CheckpointFindNextChec - - T(YAFFS_TRACE_CHECKPOINT, (TSTR("found no more checkpt blocks"TENDSTR))); - -- dev->checkpointNextBlock = -1; -- dev->checkpointCurrentBlock = -1; -+ dev->checkpt_next_block = -1; -+ dev->checkpt_cur_block = -1; - } - - --int yaffs_CheckpointOpen(yaffs_Device *dev, int forWriting) -+int yaffs2_checkpt_open(yaffs_dev_t *dev, int forWriting) - { - -+ -+ dev->checkpt_open_write = forWriting; -+ - /* Got the functions we need? */ -- if (!dev->writeChunkWithTagsToNAND || -- !dev->readChunkWithTagsFromNAND || -- !dev->eraseBlockInNAND || -- !dev->markNANDBlockBad) -+ if (!dev->param.write_chunk_tags_fn || -+ !dev->param.read_chunk_tags_fn || -+ !dev->param.erase_fn || -+ !dev->param.bad_block_fn) - return 0; - -- if (forWriting && !yaffs_CheckpointSpaceOk(dev)) -+ if (forWriting && !yaffs2_checkpt_space_ok(dev)) - return 0; - -- if (!dev->checkpointBuffer) -- dev->checkpointBuffer = YMALLOC_DMA(dev->totalBytesPerChunk); -- if (!dev->checkpointBuffer) -+ if (!dev->checkpt_buffer) -+ dev->checkpt_buffer = YMALLOC_DMA(dev->param.total_bytes_per_chunk); -+ if (!dev->checkpt_buffer) - return 0; - - -- dev->checkpointPageSequence = 0; -- -- dev->checkpointOpenForWrite = forWriting; -- -- dev->checkpointByteCount = 0; -- dev->checkpointSum = 0; -- dev->checkpointXor = 0; -- dev->checkpointCurrentBlock = -1; -- dev->checkpointCurrentChunk = -1; -- dev->checkpointNextBlock = dev->internalStartBlock; -+ dev->checkpt_page_seq = 0; -+ dev->checkpt_byte_count = 0; -+ dev->checkpt_sum = 0; -+ dev->checkpt_xor = 0; -+ dev->checkpt_cur_block = -1; -+ dev->checkpt_cur_chunk = -1; -+ dev->checkpt_next_block = dev->internal_start_block; - - /* Erase all the blocks in the checkpoint area */ - if (forWriting) { -- memset(dev->checkpointBuffer, 0, dev->nDataBytesPerChunk); -- dev->checkpointByteOffset = 0; -- return yaffs_CheckpointErase(dev); -+ memset(dev->checkpt_buffer, 0, dev->data_bytes_per_chunk); -+ dev->checkpt_byte_offs = 0; -+ return yaffs_checkpt_erase(dev); - } else { - int i; - /* Set to a value that will kick off a read */ -- dev->checkpointByteOffset = dev->nDataBytesPerChunk; -+ dev->checkpt_byte_offs = dev->data_bytes_per_chunk; - /* A checkpoint block list of 1 checkpoint block per 16 block is (hopefully) - * going to be way more than we need */ -- dev->blocksInCheckpoint = 0; -- dev->checkpointMaxBlocks = (dev->internalEndBlock - dev->internalStartBlock)/16 + 2; -- dev->checkpointBlockList = YMALLOC(sizeof(int) * dev->checkpointMaxBlocks); -- for (i = 0; i < dev->checkpointMaxBlocks; i++) -- dev->checkpointBlockList[i] = -1; -+ dev->blocks_in_checkpt = 0; -+ dev->checkpt_max_blocks = (dev->internal_end_block - dev->internal_start_block)/16 + 2; -+ dev->checkpt_block_list = YMALLOC(sizeof(int) * dev->checkpt_max_blocks); -+ if(!dev->checkpt_block_list) -+ return 0; -+ -+ for (i = 0; i < dev->checkpt_max_blocks; i++) -+ dev->checkpt_block_list[i] = -1; - } - - return 1; - } - --int yaffs_GetCheckpointSum(yaffs_Device *dev, __u32 *sum) -+int yaffs2_get_checkpt_sum(yaffs_dev_t *dev, __u32 *sum) - { - __u32 compositeSum; -- compositeSum = (dev->checkpointSum << 8) | (dev->checkpointXor & 0xFF); -+ compositeSum = (dev->checkpt_sum << 8) | (dev->checkpt_xor & 0xFF); - *sum = compositeSum; - return 1; - } - --static int yaffs_CheckpointFlushBuffer(yaffs_Device *dev) -+static int yaffs2_checkpt_flush_buffer(yaffs_dev_t *dev) - { - int chunk; - int realignedChunk; - -- yaffs_ExtendedTags tags; -+ yaffs_ext_tags tags; - -- if (dev->checkpointCurrentBlock < 0) { -- yaffs_CheckpointFindNextErasedBlock(dev); -- dev->checkpointCurrentChunk = 0; -+ if (dev->checkpt_cur_block < 0) { -+ yaffs2_checkpt_find_erased_block(dev); -+ dev->checkpt_cur_chunk = 0; - } - -- if (dev->checkpointCurrentBlock < 0) -+ if (dev->checkpt_cur_block < 0) - return 0; - -- tags.chunkDeleted = 0; -- tags.objectId = dev->checkpointNextBlock; /* Hint to next place to look */ -- tags.chunkId = dev->checkpointPageSequence + 1; -- tags.sequenceNumber = YAFFS_SEQUENCE_CHECKPOINT_DATA; -- tags.byteCount = dev->nDataBytesPerChunk; -- if (dev->checkpointCurrentChunk == 0) { -+ tags.is_deleted = 0; -+ tags.obj_id = dev->checkpt_next_block; /* Hint to next place to look */ -+ tags.chunk_id = dev->checkpt_page_seq + 1; -+ tags.seq_number = YAFFS_SEQUENCE_CHECKPOINT_DATA; -+ tags.n_bytes = dev->data_bytes_per_chunk; -+ if (dev->checkpt_cur_chunk == 0) { - /* First chunk we write for the block? Set block state to - checkpoint */ -- yaffs_BlockInfo *bi = yaffs_GetBlockInfo(dev, dev->checkpointCurrentBlock); -- bi->blockState = YAFFS_BLOCK_STATE_CHECKPOINT; -- dev->blocksInCheckpoint++; -+ yaffs_block_info_t *bi = yaffs_get_block_info(dev, dev->checkpt_cur_block); -+ bi->block_state = YAFFS_BLOCK_STATE_CHECKPOINT; -+ dev->blocks_in_checkpt++; - } - -- chunk = dev->checkpointCurrentBlock * dev->nChunksPerBlock + dev->checkpointCurrentChunk; -+ chunk = dev->checkpt_cur_block * dev->param.chunks_per_block + dev->checkpt_cur_chunk; - - - T(YAFFS_TRACE_CHECKPOINT, (TSTR("checkpoint wite buffer nand %d(%d:%d) objid %d chId %d" TENDSTR), -- chunk, dev->checkpointCurrentBlock, dev->checkpointCurrentChunk, tags.objectId, tags.chunkId)); -+ chunk, dev->checkpt_cur_block, dev->checkpt_cur_chunk, tags.obj_id, tags.chunk_id)); - -- realignedChunk = chunk - dev->chunkOffset; -+ realignedChunk = chunk - dev->chunk_offset; - -- dev->writeChunkWithTagsToNAND(dev, realignedChunk, -- dev->checkpointBuffer, &tags); -- dev->checkpointByteOffset = 0; -- dev->checkpointPageSequence++; -- dev->checkpointCurrentChunk++; -- if (dev->checkpointCurrentChunk >= dev->nChunksPerBlock) { -- dev->checkpointCurrentChunk = 0; -- dev->checkpointCurrentBlock = -1; -+ dev->n_page_writes++; -+ -+ dev->param.write_chunk_tags_fn(dev, realignedChunk, -+ dev->checkpt_buffer, &tags); -+ dev->checkpt_byte_offs = 0; -+ dev->checkpt_page_seq++; -+ dev->checkpt_cur_chunk++; -+ if (dev->checkpt_cur_chunk >= dev->param.chunks_per_block) { -+ dev->checkpt_cur_chunk = 0; -+ dev->checkpt_cur_block = -1; - } -- memset(dev->checkpointBuffer, 0, dev->nDataBytesPerChunk); -+ memset(dev->checkpt_buffer, 0, dev->data_bytes_per_chunk); - - return 1; - } - - --int yaffs_CheckpointWrite(yaffs_Device *dev, const void *data, int nBytes) -+int yaffs2_checkpt_wr(yaffs_dev_t *dev, const void *data, int n_bytes) - { - int i = 0; - int ok = 1; -@@ -244,36 +248,36 @@ int yaffs_CheckpointWrite(yaffs_Device * - - - -- if (!dev->checkpointBuffer) -+ if (!dev->checkpt_buffer) - return 0; - -- if (!dev->checkpointOpenForWrite) -+ if (!dev->checkpt_open_write) - return -1; - -- while (i < nBytes && ok) { -- dev->checkpointBuffer[dev->checkpointByteOffset] = *dataBytes; -- dev->checkpointSum += *dataBytes; -- dev->checkpointXor ^= *dataBytes; -+ while (i < n_bytes && ok) { -+ dev->checkpt_buffer[dev->checkpt_byte_offs] = *dataBytes; -+ dev->checkpt_sum += *dataBytes; -+ dev->checkpt_xor ^= *dataBytes; - -- dev->checkpointByteOffset++; -+ dev->checkpt_byte_offs++; - i++; - dataBytes++; -- dev->checkpointByteCount++; -+ dev->checkpt_byte_count++; - - -- if (dev->checkpointByteOffset < 0 || -- dev->checkpointByteOffset >= dev->nDataBytesPerChunk) -- ok = yaffs_CheckpointFlushBuffer(dev); -+ if (dev->checkpt_byte_offs < 0 || -+ dev->checkpt_byte_offs >= dev->data_bytes_per_chunk) -+ ok = yaffs2_checkpt_flush_buffer(dev); - } - - return i; - } - --int yaffs_CheckpointRead(yaffs_Device *dev, void *data, int nBytes) -+int yaffs2_checkpt_rd(yaffs_dev_t *dev, void *data, int n_bytes) - { - int i = 0; - int ok = 1; -- yaffs_ExtendedTags tags; -+ yaffs_ext_tags tags; - - - int chunk; -@@ -281,113 +285,116 @@ int yaffs_CheckpointRead(yaffs_Device *d - - __u8 *dataBytes = (__u8 *)data; - -- if (!dev->checkpointBuffer) -+ if (!dev->checkpt_buffer) - return 0; - -- if (dev->checkpointOpenForWrite) -+ if (dev->checkpt_open_write) - return -1; - -- while (i < nBytes && ok) { -+ while (i < n_bytes && ok) { - - -- if (dev->checkpointByteOffset < 0 || -- dev->checkpointByteOffset >= dev->nDataBytesPerChunk) { -+ if (dev->checkpt_byte_offs < 0 || -+ dev->checkpt_byte_offs >= dev->data_bytes_per_chunk) { - -- if (dev->checkpointCurrentBlock < 0) { -- yaffs_CheckpointFindNextCheckpointBlock(dev); -- dev->checkpointCurrentChunk = 0; -+ if (dev->checkpt_cur_block < 0) { -+ yaffs2_checkpt_find_block(dev); -+ dev->checkpt_cur_chunk = 0; - } - -- if (dev->checkpointCurrentBlock < 0) -+ if (dev->checkpt_cur_block < 0) - ok = 0; - else { -- chunk = dev->checkpointCurrentBlock * -- dev->nChunksPerBlock + -- dev->checkpointCurrentChunk; -- -- realignedChunk = chunk - dev->chunkOffset; -+ chunk = dev->checkpt_cur_block * -+ dev->param.chunks_per_block + -+ dev->checkpt_cur_chunk; -+ -+ realignedChunk = chunk - dev->chunk_offset; -+ -+ dev->n_page_reads++; - - /* read in the next chunk */ - /* printf("read checkpoint page %d\n",dev->checkpointPage); */ -- dev->readChunkWithTagsFromNAND(dev, -+ dev->param.read_chunk_tags_fn(dev, - realignedChunk, -- dev->checkpointBuffer, -+ dev->checkpt_buffer, - &tags); - -- if (tags.chunkId != (dev->checkpointPageSequence + 1) || -- tags.eccResult > YAFFS_ECC_RESULT_FIXED || -- tags.sequenceNumber != YAFFS_SEQUENCE_CHECKPOINT_DATA) -+ if (tags.chunk_id != (dev->checkpt_page_seq + 1) || -+ tags.ecc_result > YAFFS_ECC_RESULT_FIXED || -+ tags.seq_number != YAFFS_SEQUENCE_CHECKPOINT_DATA) - ok = 0; - -- dev->checkpointByteOffset = 0; -- dev->checkpointPageSequence++; -- dev->checkpointCurrentChunk++; -+ dev->checkpt_byte_offs = 0; -+ dev->checkpt_page_seq++; -+ dev->checkpt_cur_chunk++; - -- if (dev->checkpointCurrentChunk >= dev->nChunksPerBlock) -- dev->checkpointCurrentBlock = -1; -+ if (dev->checkpt_cur_chunk >= dev->param.chunks_per_block) -+ dev->checkpt_cur_block = -1; - } - } - - if (ok) { -- *dataBytes = dev->checkpointBuffer[dev->checkpointByteOffset]; -- dev->checkpointSum += *dataBytes; -- dev->checkpointXor ^= *dataBytes; -- dev->checkpointByteOffset++; -+ *dataBytes = dev->checkpt_buffer[dev->checkpt_byte_offs]; -+ dev->checkpt_sum += *dataBytes; -+ dev->checkpt_xor ^= *dataBytes; -+ dev->checkpt_byte_offs++; - i++; - dataBytes++; -- dev->checkpointByteCount++; -+ dev->checkpt_byte_count++; - } - } - - return i; - } - --int yaffs_CheckpointClose(yaffs_Device *dev) -+int yaffs_checkpt_close(yaffs_dev_t *dev) - { - -- if (dev->checkpointOpenForWrite) { -- if (dev->checkpointByteOffset != 0) -- yaffs_CheckpointFlushBuffer(dev); -- } else { -+ if (dev->checkpt_open_write) { -+ if (dev->checkpt_byte_offs != 0) -+ yaffs2_checkpt_flush_buffer(dev); -+ } else if(dev->checkpt_block_list){ - int i; -- for (i = 0; i < dev->blocksInCheckpoint && dev->checkpointBlockList[i] >= 0; i++) { -- yaffs_BlockInfo *bi = yaffs_GetBlockInfo(dev, dev->checkpointBlockList[i]); -- if (bi->blockState == YAFFS_BLOCK_STATE_EMPTY) -- bi->blockState = YAFFS_BLOCK_STATE_CHECKPOINT; -+ for (i = 0; i < dev->blocks_in_checkpt && dev->checkpt_block_list[i] >= 0; i++) { -+ int blk = dev->checkpt_block_list[i]; -+ yaffs_block_info_t *bi = NULL; -+ if( dev->internal_start_block <= blk && blk <= dev->internal_end_block) -+ bi = yaffs_get_block_info(dev, blk); -+ if (bi && bi->block_state == YAFFS_BLOCK_STATE_EMPTY) -+ bi->block_state = YAFFS_BLOCK_STATE_CHECKPOINT; - else { - /* Todo this looks odd... */ - } - } -- YFREE(dev->checkpointBlockList); -- dev->checkpointBlockList = NULL; -+ YFREE(dev->checkpt_block_list); -+ dev->checkpt_block_list = NULL; - } - -- dev->nFreeChunks -= dev->blocksInCheckpoint * dev->nChunksPerBlock; -- dev->nErasedBlocks -= dev->blocksInCheckpoint; -+ dev->n_free_chunks -= dev->blocks_in_checkpt * dev->param.chunks_per_block; -+ dev->n_erased_blocks -= dev->blocks_in_checkpt; - - - T(YAFFS_TRACE_CHECKPOINT, (TSTR("checkpoint byte count %d" TENDSTR), -- dev->checkpointByteCount)); -+ dev->checkpt_byte_count)); - -- if (dev->checkpointBuffer) { -+ if (dev->checkpt_buffer) { - /* free the buffer */ -- YFREE(dev->checkpointBuffer); -- dev->checkpointBuffer = NULL; -+ YFREE(dev->checkpt_buffer); -+ dev->checkpt_buffer = NULL; - return 1; - } else - return 0; - } - --int yaffs_CheckpointInvalidateStream(yaffs_Device *dev) -+int yaffs2_checkpt_invalidate_stream(yaffs_dev_t *dev) - { -- /* Erase the first checksum block */ -- -- T(YAFFS_TRACE_CHECKPOINT, (TSTR("checkpoint invalidate"TENDSTR))); -+ /* Erase the checkpoint data */ - -- if (!yaffs_CheckpointSpaceOk(dev)) -- return 0; -+ T(YAFFS_TRACE_CHECKPOINT, (TSTR("checkpoint invalidate of %d blocks"TENDSTR), -+ dev->blocks_in_checkpt)); - -- return yaffs_CheckpointErase(dev); -+ return yaffs_checkpt_erase(dev); - } - - ---- a/fs/yaffs2/yaffs_checkptrw.h -+++ b/fs/yaffs2/yaffs_checkptrw.h -@@ -1,7 +1,7 @@ - /* - * YAFFS: Yet another Flash File System . A NAND-flash specific file system. - * -- * Copyright (C) 2002-2007 Aleph One Ltd. -+ * Copyright (C) 2002-2010 Aleph One Ltd. - * for Toby Churchill Ltd and Brightstar Engineering - * - * Created by Charles Manning -@@ -18,18 +18,17 @@ - - #include "yaffs_guts.h" - --int yaffs_CheckpointOpen(yaffs_Device *dev, int forWriting); -+int yaffs2_checkpt_open(yaffs_dev_t *dev, int forWriting); - --int yaffs_CheckpointWrite(yaffs_Device *dev, const void *data, int nBytes); -+int yaffs2_checkpt_wr(yaffs_dev_t *dev, const void *data, int n_bytes); - --int yaffs_CheckpointRead(yaffs_Device *dev, void *data, int nBytes); -+int yaffs2_checkpt_rd(yaffs_dev_t *dev, void *data, int n_bytes); - --int yaffs_GetCheckpointSum(yaffs_Device *dev, __u32 *sum); -+int yaffs2_get_checkpt_sum(yaffs_dev_t *dev, __u32 *sum); - --int yaffs_CheckpointClose(yaffs_Device *dev); -+int yaffs_checkpt_close(yaffs_dev_t *dev); - --int yaffs_CheckpointInvalidateStream(yaffs_Device *dev); -+int yaffs2_checkpt_invalidate_stream(yaffs_dev_t *dev); - - - #endif -- ---- a/fs/yaffs2/yaffs_ecc.c -+++ b/fs/yaffs2/yaffs_ecc.c -@@ -1,7 +1,7 @@ - /* - * YAFFS: Yet Another Flash File System. A NAND-flash specific file system. - * -- * Copyright (C) 2002-2007 Aleph One Ltd. -+ * Copyright (C) 2002-2010 Aleph One Ltd. - * for Toby Churchill Ltd and Brightstar Engineering - * - * Created by Charles Manning -@@ -28,9 +28,6 @@ - * this bytes influence on the line parity. - */ - --const char *yaffs_ecc_c_version = -- "$Id: yaffs_ecc.c,v 1.11 2009-03-06 17:20:50 wookey Exp $"; -- - #include "yportenv.h" - - #include "yaffs_ecc.h" -@@ -72,7 +69,7 @@ static const unsigned char column_parity - - /* Count the bits in an unsigned char or a U32 */ - --static int yaffs_CountBits(unsigned char x) -+static int yaffs_count_bits(unsigned char x) - { - int r = 0; - while (x) { -@@ -83,7 +80,7 @@ static int yaffs_CountBits(unsigned char - return r; - } - --static int yaffs_CountBits32(unsigned x) -+static int yaffs_count_bits32(unsigned x) - { - int r = 0; - while (x) { -@@ -95,7 +92,7 @@ static int yaffs_CountBits32(unsigned x) - } - - /* Calculate the ECC for a 256-byte block of data */ --void yaffs_ECCCalculate(const unsigned char *data, unsigned char *ecc) -+void yaffs_ecc_cacl(const unsigned char *data, unsigned char *ecc) - { - unsigned int i; - -@@ -166,7 +163,7 @@ void yaffs_ECCCalculate(const unsigned c - - /* Correct the ECC on a 256 byte block of data */ - --int yaffs_ECCCorrect(unsigned char *data, unsigned char *read_ecc, -+int yaffs_ecc_correct(unsigned char *data, unsigned char *read_ecc, - const unsigned char *test_ecc) - { - unsigned char d0, d1, d2; /* deltas */ -@@ -226,9 +223,9 @@ int yaffs_ECCCorrect(unsigned char *data - return 1; /* Corrected the error */ - } - -- if ((yaffs_CountBits(d0) + -- yaffs_CountBits(d1) + -- yaffs_CountBits(d2)) == 1) { -+ if ((yaffs_count_bits(d0) + -+ yaffs_count_bits(d1) + -+ yaffs_count_bits(d2)) == 1) { - /* Reccoverable error in ecc */ - - read_ecc[0] = test_ecc[0]; -@@ -248,7 +245,7 @@ int yaffs_ECCCorrect(unsigned char *data - /* - * ECCxxxOther does ECC calcs on arbitrary n bytes of data - */ --void yaffs_ECCCalculateOther(const unsigned char *data, unsigned nBytes, -+void yaffs_ecc_calc_other(const unsigned char *data, unsigned n_bytes, - yaffs_ECCOther *eccOther) - { - unsigned int i; -@@ -258,7 +255,7 @@ void yaffs_ECCCalculateOther(const unsig - unsigned line_parity_prime = 0; - unsigned char b; - -- for (i = 0; i < nBytes; i++) { -+ for (i = 0; i < n_bytes; i++) { - b = column_parity_table[*data++]; - col_parity ^= b; - -@@ -275,7 +272,7 @@ void yaffs_ECCCalculateOther(const unsig - eccOther->lineParityPrime = line_parity_prime; - } - --int yaffs_ECCCorrectOther(unsigned char *data, unsigned nBytes, -+int yaffs_ecc_correct_other(unsigned char *data, unsigned n_bytes, - yaffs_ECCOther *read_ecc, - const yaffs_ECCOther *test_ecc) - { -@@ -304,7 +301,7 @@ int yaffs_ECCCorrectOther(unsigned char - if (cDelta & 0x02) - bit |= 0x01; - -- if (lDelta >= nBytes) -+ if (lDelta >= n_bytes) - return -1; - - data[lDelta] ^= (1 << bit); -@@ -312,8 +309,8 @@ int yaffs_ECCCorrectOther(unsigned char - return 1; /* corrected */ - } - -- if ((yaffs_CountBits32(lDelta) + yaffs_CountBits32(lDeltaPrime) + -- yaffs_CountBits(cDelta)) == 1) { -+ if ((yaffs_count_bits32(lDelta) + yaffs_count_bits32(lDeltaPrime) + -+ yaffs_count_bits(cDelta)) == 1) { - /* Reccoverable error in ecc */ - - *read_ecc = *test_ecc; ---- a/fs/yaffs2/yaffs_ecc.h -+++ b/fs/yaffs2/yaffs_ecc.h -@@ -1,7 +1,7 @@ - /* - * YAFFS: Yet another Flash File System . A NAND-flash specific file system. - * -- * Copyright (C) 2002-2007 Aleph One Ltd. -+ * Copyright (C) 2002-2010 Aleph One Ltd. - * for Toby Churchill Ltd and Brightstar Engineering - * - * Created by Charles Manning -@@ -32,13 +32,13 @@ typedef struct { - unsigned lineParityPrime; - } yaffs_ECCOther; - --void yaffs_ECCCalculate(const unsigned char *data, unsigned char *ecc); --int yaffs_ECCCorrect(unsigned char *data, unsigned char *read_ecc, -+void yaffs_ecc_cacl(const unsigned char *data, unsigned char *ecc); -+int yaffs_ecc_correct(unsigned char *data, unsigned char *read_ecc, - const unsigned char *test_ecc); - --void yaffs_ECCCalculateOther(const unsigned char *data, unsigned nBytes, -+void yaffs_ecc_calc_other(const unsigned char *data, unsigned n_bytes, - yaffs_ECCOther *ecc); --int yaffs_ECCCorrectOther(unsigned char *data, unsigned nBytes, -+int yaffs_ecc_correct_other(unsigned char *data, unsigned n_bytes, - yaffs_ECCOther *read_ecc, - const yaffs_ECCOther *test_ecc); - #endif ---- a/fs/yaffs2/yaffs_fs.c -+++ /dev/null -@@ -1,2529 +0,0 @@ --/* -- * YAFFS: Yet Another Flash File System. A NAND-flash specific file system. -- * -- * Copyright (C) 2002-2009 Aleph One Ltd. -- * for Toby Churchill Ltd and Brightstar Engineering -- * -- * Created by Charles Manning -- * Acknowledgements: -- * Luc van OostenRyck for numerous patches. -- * Nick Bane for numerous patches. -- * Nick Bane for 2.5/2.6 integration. -- * Andras Toth for mknod rdev issue. -- * Michael Fischer for finding the problem with inode inconsistency. -- * Some code bodily lifted from JFFS -- * -- * This program is free software; you can redistribute it and/or modify -- * it under the terms of the GNU General Public License version 2 as -- * published by the Free Software Foundation. -- */ -- --/* -- * -- * This is the file system front-end to YAFFS that hooks it up to -- * the VFS. -- * -- * Special notes: -- * >> 2.4: sb->u.generic_sbp points to the yaffs_Device associated with -- * this superblock -- * >> 2.6: sb->s_fs_info points to the yaffs_Device associated with this -- * superblock -- * >> inode->u.generic_ip points to the associated yaffs_Object. -- */ -- --const char *yaffs_fs_c_version = -- "$Id: yaffs_fs.c,v 1.79 2009-03-17 01:12:00 wookey Exp $"; --extern const char *yaffs_guts_c_version; -- --#include --#if (LINUX_VERSION_CODE < KERNEL_VERSION(2, 6, 19)) --#include --#endif --#include --#include --#include --#include --#include --#include --#include --#include --#include --#include --#include --#include -- --#include "asm/div64.h" -- --#if (LINUX_VERSION_CODE > KERNEL_VERSION(2, 5, 0)) -- --#include /* Added NCB 15-8-2003 */ --#include --#define UnlockPage(p) unlock_page(p) --#define Page_Uptodate(page) test_bit(PG_uptodate, &(page)->flags) -- --/* FIXME: use sb->s_id instead ? */ --#define yaffs_devname(sb, buf) bdevname(sb->s_bdev, buf) -- --#else -- --#include --#define BDEVNAME_SIZE 0 --#define yaffs_devname(sb, buf) kdevname(sb->s_dev) -- --#if (LINUX_VERSION_CODE < KERNEL_VERSION(2, 5, 0)) --/* added NCB 26/5/2006 for 2.4.25-vrs2-tcl1 kernel */ --#define __user --#endif -- --#endif -- --#if (LINUX_VERSION_CODE < KERNEL_VERSION(2, 6, 26)) --#define YPROC_ROOT (&proc_root) --#else --#define YPROC_ROOT NULL --#endif -- --#if (LINUX_VERSION_CODE > KERNEL_VERSION(2, 6, 17)) --#define WRITE_SIZE_STR "writesize" --#define WRITE_SIZE(mtd) ((mtd)->writesize) --#else --#define WRITE_SIZE_STR "oobblock" --#define WRITE_SIZE(mtd) ((mtd)->oobblock) --#endif -- --#if (LINUX_VERSION_CODE > KERNEL_VERSION(2, 6, 27)) --#define YAFFS_USE_WRITE_BEGIN_END 1 --#else --#define YAFFS_USE_WRITE_BEGIN_END 0 --#endif -- --#if (LINUX_VERSION_CODE > KERNEL_VERSION(2, 6, 28)) --static uint32_t YCALCBLOCKS(uint64_t partition_size, uint32_t block_size) --{ -- uint64_t result = partition_size; -- do_div(result, block_size); -- return (uint32_t)result; --} --#else --#define YCALCBLOCKS(s, b) ((s)/(b)) --#endif -- --#include -- --#include "yportenv.h" --#include "yaffs_guts.h" -- --#include --#include "yaffs_mtdif.h" --#include "yaffs_mtdif1.h" --#include "yaffs_mtdif2.h" -- --unsigned int yaffs_traceMask = YAFFS_TRACE_BAD_BLOCKS; --unsigned int yaffs_wr_attempts = YAFFS_WR_ATTEMPTS; --unsigned int yaffs_auto_checkpoint = 1; -- --/* Module Parameters */ --#if (LINUX_VERSION_CODE > KERNEL_VERSION(2, 5, 0)) --module_param(yaffs_traceMask, uint, 0644); --module_param(yaffs_wr_attempts, uint, 0644); --module_param(yaffs_auto_checkpoint, uint, 0644); --#else --MODULE_PARM(yaffs_traceMask, "i"); --MODULE_PARM(yaffs_wr_attempts, "i"); --MODULE_PARM(yaffs_auto_checkpoint, "i"); --#endif -- --#if (LINUX_VERSION_CODE < KERNEL_VERSION(2, 6, 25)) --/* use iget and read_inode */ --#define Y_IGET(sb, inum) iget((sb), (inum)) --static void yaffs_read_inode(struct inode *inode); -- --#else --/* Call local equivalent */ --#define YAFFS_USE_OWN_IGET --#define Y_IGET(sb, inum) yaffs_iget((sb), (inum)) -- --static struct inode *yaffs_iget(struct super_block *sb, unsigned long ino); --#endif -- --/*#define T(x) printk x */ -- --#if (LINUX_VERSION_CODE > KERNEL_VERSION(2, 6, 18)) --#define yaffs_InodeToObjectLV(iptr) ((iptr)->i_private) --#else --#define yaffs_InodeToObjectLV(iptr) ((iptr)->u.generic_ip) --#endif -- --#define yaffs_InodeToObject(iptr) ((yaffs_Object *)(yaffs_InodeToObjectLV(iptr))) --#define yaffs_DentryToObject(dptr) yaffs_InodeToObject((dptr)->d_inode) -- --#if (LINUX_VERSION_CODE > KERNEL_VERSION(2, 5, 0)) --#define yaffs_SuperToDevice(sb) ((yaffs_Device *)sb->s_fs_info) --#else --#define yaffs_SuperToDevice(sb) ((yaffs_Device *)sb->u.generic_sbp) --#endif -- --static void yaffs_put_super(struct super_block *sb); -- --static ssize_t yaffs_file_write(struct file *f, const char *buf, size_t n, -- loff_t *pos); --static ssize_t yaffs_hold_space(struct file *f); --static void yaffs_release_space(struct file *f); -- --#if (LINUX_VERSION_CODE > KERNEL_VERSION(2, 6, 17)) --static int yaffs_file_flush(struct file *file, fl_owner_t id); --#else --static int yaffs_file_flush(struct file *file); --#endif -- --static int yaffs_sync_object(struct file *file, struct dentry *dentry, -- int datasync); -- --static int yaffs_readdir(struct file *f, void *dirent, filldir_t filldir); -- --#if (LINUX_VERSION_CODE > KERNEL_VERSION(2, 5, 0)) --static int yaffs_create(struct inode *dir, struct dentry *dentry, int mode, -- struct nameidata *n); --static struct dentry *yaffs_lookup(struct inode *dir, struct dentry *dentry, -- struct nameidata *n); --#else --static int yaffs_create(struct inode *dir, struct dentry *dentry, int mode); --static struct dentry *yaffs_lookup(struct inode *dir, struct dentry *dentry); --#endif --static int yaffs_link(struct dentry *old_dentry, struct inode *dir, -- struct dentry *dentry); --static int yaffs_unlink(struct inode *dir, struct dentry *dentry); --static int yaffs_symlink(struct inode *dir, struct dentry *dentry, -- const char *symname); --static int yaffs_mkdir(struct inode *dir, struct dentry *dentry, int mode); -- --#if (LINUX_VERSION_CODE > KERNEL_VERSION(2, 5, 0)) --static int yaffs_mknod(struct inode *dir, struct dentry *dentry, int mode, -- dev_t dev); --#else --static int yaffs_mknod(struct inode *dir, struct dentry *dentry, int mode, -- int dev); --#endif --static int yaffs_rename(struct inode *old_dir, struct dentry *old_dentry, -- struct inode *new_dir, struct dentry *new_dentry); --static int yaffs_setattr(struct dentry *dentry, struct iattr *attr); -- --#if (LINUX_VERSION_CODE > KERNEL_VERSION(2, 6, 17)) --static int yaffs_sync_fs(struct super_block *sb, int wait); --static void yaffs_write_super(struct super_block *sb); --#else --static int yaffs_sync_fs(struct super_block *sb); --static int yaffs_write_super(struct super_block *sb); --#endif -- --#if (LINUX_VERSION_CODE > KERNEL_VERSION(2, 6, 17)) --static int yaffs_statfs(struct dentry *dentry, struct kstatfs *buf); --#elif (LINUX_VERSION_CODE > KERNEL_VERSION(2, 5, 0)) --static int yaffs_statfs(struct super_block *sb, struct kstatfs *buf); --#else --static int yaffs_statfs(struct super_block *sb, struct statfs *buf); --#endif -- --#ifdef YAFFS_HAS_PUT_INODE --static void yaffs_put_inode(struct inode *inode); --#endif -- --static void yaffs_delete_inode(struct inode *); --static void yaffs_clear_inode(struct inode *); -- --static int yaffs_readpage(struct file *file, struct page *page); --#if (LINUX_VERSION_CODE > KERNEL_VERSION(2, 5, 0)) --static int yaffs_writepage(struct page *page, struct writeback_control *wbc); --#else --static int yaffs_writepage(struct page *page); --#endif -- -- --#if (YAFFS_USE_WRITE_BEGIN_END != 0) --static int yaffs_write_begin(struct file *filp, struct address_space *mapping, -- loff_t pos, unsigned len, unsigned flags, -- struct page **pagep, void **fsdata); --static int yaffs_write_end(struct file *filp, struct address_space *mapping, -- loff_t pos, unsigned len, unsigned copied, -- struct page *pg, void *fsdadata); --#else --static int yaffs_prepare_write(struct file *f, struct page *pg, -- unsigned offset, unsigned to); --static int yaffs_commit_write(struct file *f, struct page *pg, unsigned offset, -- unsigned to); -- --#endif -- --static int yaffs_readlink(struct dentry *dentry, char __user *buffer, -- int buflen); --#if (LINUX_VERSION_CODE > KERNEL_VERSION(2, 6, 13)) --static void *yaffs_follow_link(struct dentry *dentry, struct nameidata *nd); --#else --static int yaffs_follow_link(struct dentry *dentry, struct nameidata *nd); --#endif -- --static struct address_space_operations yaffs_file_address_operations = { -- .readpage = yaffs_readpage, -- .writepage = yaffs_writepage, --#if (YAFFS_USE_WRITE_BEGIN_END > 0) -- .write_begin = yaffs_write_begin, -- .write_end = yaffs_write_end, --#else -- .prepare_write = yaffs_prepare_write, -- .commit_write = yaffs_commit_write, --#endif --}; -- --#if (LINUX_VERSION_CODE > KERNEL_VERSION(2, 6, 22)) --static const struct file_operations yaffs_file_operations = { -- .read = do_sync_read, -- .write = do_sync_write, -- .aio_read = generic_file_aio_read, -- .aio_write = generic_file_aio_write, -- .mmap = generic_file_mmap, -- .flush = yaffs_file_flush, -- .fsync = yaffs_sync_object, -- .splice_read = generic_file_splice_read, -- .splice_write = generic_file_splice_write, -- .llseek = generic_file_llseek, --}; -- --#elif (LINUX_VERSION_CODE > KERNEL_VERSION(2, 6, 18)) -- --static const struct file_operations yaffs_file_operations = { -- .read = do_sync_read, -- .write = do_sync_write, -- .aio_read = generic_file_aio_read, -- .aio_write = generic_file_aio_write, -- .mmap = generic_file_mmap, -- .flush = yaffs_file_flush, -- .fsync = yaffs_sync_object, -- .sendfile = generic_file_sendfile, --}; -- --#else -- --static const struct file_operations yaffs_file_operations = { -- .read = generic_file_read, -- .write = generic_file_write, -- .mmap = generic_file_mmap, -- .flush = yaffs_file_flush, -- .fsync = yaffs_sync_object, --#if (LINUX_VERSION_CODE > KERNEL_VERSION(2, 5, 0)) -- .sendfile = generic_file_sendfile, --#endif --}; --#endif -- --static const struct inode_operations yaffs_file_inode_operations = { -- .setattr = yaffs_setattr, --}; -- --static const struct inode_operations yaffs_symlink_inode_operations = { -- .readlink = yaffs_readlink, -- .follow_link = yaffs_follow_link, -- .setattr = yaffs_setattr, --}; -- --static const struct inode_operations yaffs_dir_inode_operations = { -- .create = yaffs_create, -- .lookup = yaffs_lookup, -- .link = yaffs_link, -- .unlink = yaffs_unlink, -- .symlink = yaffs_symlink, -- .mkdir = yaffs_mkdir, -- .rmdir = yaffs_unlink, -- .mknod = yaffs_mknod, -- .rename = yaffs_rename, -- .setattr = yaffs_setattr, --}; -- --static const struct file_operations yaffs_dir_operations = { -- .read = generic_read_dir, -- .readdir = yaffs_readdir, -- .fsync = yaffs_sync_object, --}; -- --static const struct super_operations yaffs_super_ops = { -- .statfs = yaffs_statfs, -- --#ifndef YAFFS_USE_OWN_IGET -- .read_inode = yaffs_read_inode, --#endif --#ifdef YAFFS_HAS_PUT_INODE -- .put_inode = yaffs_put_inode, --#endif -- .put_super = yaffs_put_super, -- .delete_inode = yaffs_delete_inode, -- .clear_inode = yaffs_clear_inode, -- .sync_fs = yaffs_sync_fs, -- .write_super = yaffs_write_super, --}; -- --static void yaffs_GrossLock(yaffs_Device *dev) --{ -- T(YAFFS_TRACE_OS, ("yaffs locking %p\n", current)); -- down(&dev->grossLock); -- T(YAFFS_TRACE_OS, ("yaffs locked %p\n", current)); --} -- --static void yaffs_GrossUnlock(yaffs_Device *dev) --{ -- T(YAFFS_TRACE_OS, ("yaffs unlocking %p\n", current)); -- up(&dev->grossLock); --} -- --static int yaffs_readlink(struct dentry *dentry, char __user *buffer, -- int buflen) --{ -- unsigned char *alias; -- int ret; -- -- yaffs_Device *dev = yaffs_DentryToObject(dentry)->myDev; -- -- yaffs_GrossLock(dev); -- -- alias = yaffs_GetSymlinkAlias(yaffs_DentryToObject(dentry)); -- -- yaffs_GrossUnlock(dev); -- -- if (!alias) -- return -ENOMEM; -- -- ret = vfs_readlink(dentry, buffer, buflen, alias); -- kfree(alias); -- return ret; --} -- --#if (LINUX_VERSION_CODE > KERNEL_VERSION(2, 6, 13)) --static void *yaffs_follow_link(struct dentry *dentry, struct nameidata *nd) --#else --static int yaffs_follow_link(struct dentry *dentry, struct nameidata *nd) --#endif --{ -- unsigned char *alias; -- int ret; -- yaffs_Device *dev = yaffs_DentryToObject(dentry)->myDev; -- -- yaffs_GrossLock(dev); -- -- alias = yaffs_GetSymlinkAlias(yaffs_DentryToObject(dentry)); -- -- yaffs_GrossUnlock(dev); -- -- if (!alias) { -- ret = -ENOMEM; -- goto out; -- } -- -- ret = vfs_follow_link(nd, alias); -- kfree(alias); --out: --#if (LINUX_VERSION_CODE > KERNEL_VERSION(2, 6, 13)) -- return ERR_PTR(ret); --#else -- return ret; --#endif --} -- --struct inode *yaffs_get_inode(struct super_block *sb, int mode, int dev, -- yaffs_Object *obj); -- --/* -- * Lookup is used to find objects in the fs -- */ --#if (LINUX_VERSION_CODE > KERNEL_VERSION(2, 5, 0)) -- --static struct dentry *yaffs_lookup(struct inode *dir, struct dentry *dentry, -- struct nameidata *n) --#else --static struct dentry *yaffs_lookup(struct inode *dir, struct dentry *dentry) --#endif --{ -- yaffs_Object *obj; -- struct inode *inode = NULL; /* NCB 2.5/2.6 needs NULL here */ -- -- yaffs_Device *dev = yaffs_InodeToObject(dir)->myDev; -- -- yaffs_GrossLock(dev); -- -- T(YAFFS_TRACE_OS, -- ("yaffs_lookup for %d:%s\n", -- yaffs_InodeToObject(dir)->objectId, dentry->d_name.name)); -- -- obj = yaffs_FindObjectByName(yaffs_InodeToObject(dir), -- dentry->d_name.name); -- -- obj = yaffs_GetEquivalentObject(obj); /* in case it was a hardlink */ -- -- /* Can't hold gross lock when calling yaffs_get_inode() */ -- yaffs_GrossUnlock(dev); -- -- if (obj) { -- T(YAFFS_TRACE_OS, -- ("yaffs_lookup found %d\n", obj->objectId)); -- -- inode = yaffs_get_inode(dir->i_sb, obj->yst_mode, 0, obj); -- -- if (inode) { -- T(YAFFS_TRACE_OS, -- ("yaffs_loookup dentry \n")); --/* #if 0 asserted by NCB for 2.5/6 compatability - falls through to -- * d_add even if NULL inode */ --#if 0 -- /*dget(dentry); // try to solve directory bug */ -- d_add(dentry, inode); -- -- /* return dentry; */ -- return NULL; --#endif -- } -- -- } else { -- T(YAFFS_TRACE_OS, ("yaffs_lookup not found\n")); -- -- } -- --/* added NCB for 2.5/6 compatability - forces add even if inode is -- * NULL which creates dentry hash */ -- d_add(dentry, inode); -- -- return NULL; --} -- -- --#ifdef YAFFS_HAS_PUT_INODE -- --/* For now put inode is just for debugging -- * Put inode is called when the inode **structure** is put. -- */ --static void yaffs_put_inode(struct inode *inode) --{ -- T(YAFFS_TRACE_OS, -- ("yaffs_put_inode: ino %d, count %d\n", (int)inode->i_ino, -- atomic_read(&inode->i_count))); -- --} --#endif -- --/* clear is called to tell the fs to release any per-inode data it holds */ --static void yaffs_clear_inode(struct inode *inode) --{ -- yaffs_Object *obj; -- yaffs_Device *dev; -- -- obj = yaffs_InodeToObject(inode); -- -- T(YAFFS_TRACE_OS, -- ("yaffs_clear_inode: ino %d, count %d %s\n", (int)inode->i_ino, -- atomic_read(&inode->i_count), -- obj ? "object exists" : "null object")); -- -- if (obj) { -- dev = obj->myDev; -- yaffs_GrossLock(dev); -- -- /* Clear the association between the inode and -- * the yaffs_Object. -- */ -- obj->myInode = NULL; -- yaffs_InodeToObjectLV(inode) = NULL; -- -- /* If the object freeing was deferred, then the real -- * free happens now. -- * This should fix the inode inconsistency problem. -- */ -- -- yaffs_HandleDeferedFree(obj); -- -- yaffs_GrossUnlock(dev); -- } -- --} -- --/* delete is called when the link count is zero and the inode -- * is put (ie. nobody wants to know about it anymore, time to -- * delete the file). -- * NB Must call clear_inode() -- */ --static void yaffs_delete_inode(struct inode *inode) --{ -- yaffs_Object *obj = yaffs_InodeToObject(inode); -- yaffs_Device *dev; -- -- T(YAFFS_TRACE_OS, -- ("yaffs_delete_inode: ino %d, count %d %s\n", (int)inode->i_ino, -- atomic_read(&inode->i_count), -- obj ? "object exists" : "null object")); -- -- if (obj) { -- dev = obj->myDev; -- yaffs_GrossLock(dev); -- yaffs_DeleteObject(obj); -- yaffs_GrossUnlock(dev); -- } --#if (LINUX_VERSION_CODE > KERNEL_VERSION(2, 6, 13)) -- truncate_inode_pages(&inode->i_data, 0); --#endif -- clear_inode(inode); --} -- --#if (LINUX_VERSION_CODE > KERNEL_VERSION(2, 6, 17)) --static int yaffs_file_flush(struct file *file, fl_owner_t id) --#else --static int yaffs_file_flush(struct file *file) --#endif --{ -- yaffs_Object *obj = yaffs_DentryToObject(file->f_dentry); -- -- yaffs_Device *dev = obj->myDev; -- -- T(YAFFS_TRACE_OS, -- ("yaffs_file_flush object %d (%s)\n", obj->objectId, -- obj->dirty ? "dirty" : "clean")); -- -- yaffs_GrossLock(dev); -- -- yaffs_FlushFile(obj, 1); -- -- yaffs_GrossUnlock(dev); -- -- return 0; --} -- --static int yaffs_readpage_nolock(struct file *f, struct page *pg) --{ -- /* Lifted from jffs2 */ -- -- yaffs_Object *obj; -- unsigned char *pg_buf; -- int ret; -- -- yaffs_Device *dev; -- -- T(YAFFS_TRACE_OS, ("yaffs_readpage at %08x, size %08x\n", -- (unsigned)(pg->index << PAGE_CACHE_SHIFT), -- (unsigned)PAGE_CACHE_SIZE)); -- -- obj = yaffs_DentryToObject(f->f_dentry); -- -- dev = obj->myDev; -- --#if (LINUX_VERSION_CODE > KERNEL_VERSION(2, 5, 0)) -- BUG_ON(!PageLocked(pg)); --#else -- if (!PageLocked(pg)) -- PAGE_BUG(pg); --#endif -- -- pg_buf = kmap(pg); -- /* FIXME: Can kmap fail? */ -- -- yaffs_GrossLock(dev); -- -- ret = yaffs_ReadDataFromFile(obj, pg_buf, -- pg->index << PAGE_CACHE_SHIFT, -- PAGE_CACHE_SIZE); -- -- yaffs_GrossUnlock(dev); -- -- if (ret >= 0) -- ret = 0; -- -- if (ret) { -- ClearPageUptodate(pg); -- SetPageError(pg); -- } else { -- SetPageUptodate(pg); -- ClearPageError(pg); -- } -- -- flush_dcache_page(pg); -- kunmap(pg); -- -- T(YAFFS_TRACE_OS, ("yaffs_readpage done\n")); -- return ret; --} -- --static int yaffs_readpage_unlock(struct file *f, struct page *pg) --{ -- int ret = yaffs_readpage_nolock(f, pg); -- UnlockPage(pg); -- return ret; --} -- --static int yaffs_readpage(struct file *f, struct page *pg) --{ -- return yaffs_readpage_unlock(f, pg); --} -- --/* writepage inspired by/stolen from smbfs */ -- --#if (LINUX_VERSION_CODE > KERNEL_VERSION(2, 5, 0)) --static int yaffs_writepage(struct page *page, struct writeback_control *wbc) --#else --static int yaffs_writepage(struct page *page) --#endif --{ -- struct address_space *mapping = page->mapping; -- loff_t offset = (loff_t) page->index << PAGE_CACHE_SHIFT; -- struct inode *inode; -- unsigned long end_index; -- char *buffer; -- yaffs_Object *obj; -- int nWritten = 0; -- unsigned nBytes; -- -- if (!mapping) -- BUG(); -- inode = mapping->host; -- if (!inode) -- BUG(); -- -- if (offset > inode->i_size) { -- T(YAFFS_TRACE_OS, -- ("yaffs_writepage at %08x, inode size = %08x!!!\n", -- (unsigned)(page->index << PAGE_CACHE_SHIFT), -- (unsigned)inode->i_size)); -- T(YAFFS_TRACE_OS, -- (" -> don't care!!\n")); -- unlock_page(page); -- return 0; -- } -- -- end_index = inode->i_size >> PAGE_CACHE_SHIFT; -- -- /* easy case */ -- if (page->index < end_index) -- nBytes = PAGE_CACHE_SIZE; -- else -- nBytes = inode->i_size & (PAGE_CACHE_SIZE - 1); -- -- get_page(page); -- -- buffer = kmap(page); -- -- obj = yaffs_InodeToObject(inode); -- yaffs_GrossLock(obj->myDev); -- -- T(YAFFS_TRACE_OS, -- ("yaffs_writepage at %08x, size %08x\n", -- (unsigned)(page->index << PAGE_CACHE_SHIFT), nBytes)); -- T(YAFFS_TRACE_OS, -- ("writepag0: obj = %05x, ino = %05x\n", -- (int)obj->variant.fileVariant.fileSize, (int)inode->i_size)); -- -- nWritten = yaffs_WriteDataToFile(obj, buffer, -- page->index << PAGE_CACHE_SHIFT, nBytes, 0); -- -- T(YAFFS_TRACE_OS, -- ("writepag1: obj = %05x, ino = %05x\n", -- (int)obj->variant.fileVariant.fileSize, (int)inode->i_size)); -- -- yaffs_GrossUnlock(obj->myDev); -- -- kunmap(page); -- SetPageUptodate(page); -- UnlockPage(page); -- put_page(page); -- -- return (nWritten == nBytes) ? 0 : -ENOSPC; --} -- -- --#if (YAFFS_USE_WRITE_BEGIN_END > 0) --static int yaffs_write_begin(struct file *filp, struct address_space *mapping, -- loff_t pos, unsigned len, unsigned flags, -- struct page **pagep, void **fsdata) --{ -- struct page *pg = NULL; -- pgoff_t index = pos >> PAGE_CACHE_SHIFT; -- uint32_t offset = pos & (PAGE_CACHE_SIZE - 1); -- uint32_t to = offset + len; -- -- int ret = 0; -- int space_held = 0; -- -- T(YAFFS_TRACE_OS, ("start yaffs_write_begin\n")); -- /* Get a page */ --#if LINUX_VERSION_CODE > KERNEL_VERSION(2, 6, 28) -- pg = grab_cache_page_write_begin(mapping, index, flags); --#else -- pg = __grab_cache_page(mapping, index); --#endif -- -- *pagep = pg; -- if (!pg) { -- ret = -ENOMEM; -- goto out; -- } -- /* Get fs space */ -- space_held = yaffs_hold_space(filp); -- -- if (!space_held) { -- ret = -ENOSPC; -- goto out; -- } -- -- /* Update page if required */ -- -- if (!Page_Uptodate(pg) && (offset || to < PAGE_CACHE_SIZE)) -- ret = yaffs_readpage_nolock(filp, pg); -- -- if (ret) -- goto out; -- -- /* Happy path return */ -- T(YAFFS_TRACE_OS, ("end yaffs_write_begin - ok\n")); -- -- return 0; -- --out: -- T(YAFFS_TRACE_OS, ("end yaffs_write_begin fail returning %d\n", ret)); -- if (space_held) -- yaffs_release_space(filp); -- if (pg) { -- unlock_page(pg); -- page_cache_release(pg); -- } -- return ret; --} -- --#else -- --static int yaffs_prepare_write(struct file *f, struct page *pg, -- unsigned offset, unsigned to) --{ -- T(YAFFS_TRACE_OS, ("yaffs_prepair_write\n")); -- -- if (!Page_Uptodate(pg) && (offset || to < PAGE_CACHE_SIZE)) -- return yaffs_readpage_nolock(f, pg); -- return 0; --} --#endif -- --#if (YAFFS_USE_WRITE_BEGIN_END > 0) --static int yaffs_write_end(struct file *filp, struct address_space *mapping, -- loff_t pos, unsigned len, unsigned copied, -- struct page *pg, void *fsdadata) --{ -- int ret = 0; -- void *addr, *kva; -- uint32_t offset_into_page = pos & (PAGE_CACHE_SIZE - 1); -- -- kva = kmap(pg); -- addr = kva + offset_into_page; -- -- T(YAFFS_TRACE_OS, -- ("yaffs_write_end addr %x pos %x nBytes %d\n", -- (unsigned) addr, -- (int)pos, copied)); -- -- ret = yaffs_file_write(filp, addr, copied, &pos); -- -- if (ret != copied) { -- T(YAFFS_TRACE_OS, -- ("yaffs_write_end not same size ret %d copied %d\n", -- ret, copied)); -- SetPageError(pg); -- ClearPageUptodate(pg); -- } else { -- SetPageUptodate(pg); -- } -- -- kunmap(pg); -- -- yaffs_release_space(filp); -- unlock_page(pg); -- page_cache_release(pg); -- return ret; --} --#else -- --static int yaffs_commit_write(struct file *f, struct page *pg, unsigned offset, -- unsigned to) --{ -- void *addr, *kva; -- -- loff_t pos = (((loff_t) pg->index) << PAGE_CACHE_SHIFT) + offset; -- int nBytes = to - offset; -- int nWritten; -- -- unsigned spos = pos; -- unsigned saddr; -- -- kva = kmap(pg); -- addr = kva + offset; -- -- saddr = (unsigned) addr; -- -- T(YAFFS_TRACE_OS, -- ("yaffs_commit_write addr %x pos %x nBytes %d\n", -- saddr, spos, nBytes)); -- -- nWritten = yaffs_file_write(f, addr, nBytes, &pos); -- -- if (nWritten != nBytes) { -- T(YAFFS_TRACE_OS, -- ("yaffs_commit_write not same size nWritten %d nBytes %d\n", -- nWritten, nBytes)); -- SetPageError(pg); -- ClearPageUptodate(pg); -- } else { -- SetPageUptodate(pg); -- } -- -- kunmap(pg); -- -- T(YAFFS_TRACE_OS, -- ("yaffs_commit_write returning %d\n", -- nWritten == nBytes ? 0 : nWritten)); -- -- return nWritten == nBytes ? 0 : nWritten; --} --#endif -- -- --static void yaffs_FillInodeFromObject(struct inode *inode, yaffs_Object *obj) --{ -- if (inode && obj) { -- -- -- /* Check mode against the variant type and attempt to repair if broken. */ -- __u32 mode = obj->yst_mode; -- switch (obj->variantType) { -- case YAFFS_OBJECT_TYPE_FILE: -- if (!S_ISREG(mode)) { -- obj->yst_mode &= ~S_IFMT; -- obj->yst_mode |= S_IFREG; -- } -- -- break; -- case YAFFS_OBJECT_TYPE_SYMLINK: -- if (!S_ISLNK(mode)) { -- obj->yst_mode &= ~S_IFMT; -- obj->yst_mode |= S_IFLNK; -- } -- -- break; -- case YAFFS_OBJECT_TYPE_DIRECTORY: -- if (!S_ISDIR(mode)) { -- obj->yst_mode &= ~S_IFMT; -- obj->yst_mode |= S_IFDIR; -- } -- -- break; -- case YAFFS_OBJECT_TYPE_UNKNOWN: -- case YAFFS_OBJECT_TYPE_HARDLINK: -- case YAFFS_OBJECT_TYPE_SPECIAL: -- default: -- /* TODO? */ -- break; -- } -- -- inode->i_flags |= S_NOATIME; -- -- inode->i_ino = obj->objectId; -- inode->i_mode = obj->yst_mode; -- inode->i_uid = obj->yst_uid; -- inode->i_gid = obj->yst_gid; --#if (LINUX_VERSION_CODE < KERNEL_VERSION(2, 6, 19)) -- inode->i_blksize = inode->i_sb->s_blocksize; --#endif --#if (LINUX_VERSION_CODE > KERNEL_VERSION(2, 5, 0)) -- -- inode->i_rdev = old_decode_dev(obj->yst_rdev); -- inode->i_atime.tv_sec = (time_t) (obj->yst_atime); -- inode->i_atime.tv_nsec = 0; -- inode->i_mtime.tv_sec = (time_t) obj->yst_mtime; -- inode->i_mtime.tv_nsec = 0; -- inode->i_ctime.tv_sec = (time_t) obj->yst_ctime; -- inode->i_ctime.tv_nsec = 0; --#else -- inode->i_rdev = obj->yst_rdev; -- inode->i_atime = obj->yst_atime; -- inode->i_mtime = obj->yst_mtime; -- inode->i_ctime = obj->yst_ctime; --#endif -- inode->i_size = yaffs_GetObjectFileLength(obj); -- inode->i_blocks = (inode->i_size + 511) >> 9; -- -- inode->i_nlink = yaffs_GetObjectLinkCount(obj); -- -- T(YAFFS_TRACE_OS, -- ("yaffs_FillInode mode %x uid %d gid %d size %d count %d\n", -- inode->i_mode, inode->i_uid, inode->i_gid, -- (int)inode->i_size, atomic_read(&inode->i_count))); -- -- switch (obj->yst_mode & S_IFMT) { -- default: /* fifo, device or socket */ --#if (LINUX_VERSION_CODE > KERNEL_VERSION(2, 5, 0)) -- init_special_inode(inode, obj->yst_mode, -- old_decode_dev(obj->yst_rdev)); --#else -- init_special_inode(inode, obj->yst_mode, -- (dev_t) (obj->yst_rdev)); --#endif -- break; -- case S_IFREG: /* file */ -- inode->i_op = &yaffs_file_inode_operations; -- inode->i_fop = &yaffs_file_operations; -- inode->i_mapping->a_ops = -- &yaffs_file_address_operations; -- break; -- case S_IFDIR: /* directory */ -- inode->i_op = &yaffs_dir_inode_operations; -- inode->i_fop = &yaffs_dir_operations; -- break; -- case S_IFLNK: /* symlink */ -- inode->i_op = &yaffs_symlink_inode_operations; -- break; -- } -- -- yaffs_InodeToObjectLV(inode) = obj; -- -- obj->myInode = inode; -- -- } else { -- T(YAFFS_TRACE_OS, -- ("yaffs_FileInode invalid parameters\n")); -- } -- --} -- --struct inode *yaffs_get_inode(struct super_block *sb, int mode, int dev, -- yaffs_Object *obj) --{ -- struct inode *inode; -- -- if (!sb) { -- T(YAFFS_TRACE_OS, -- ("yaffs_get_inode for NULL super_block!!\n")); -- return NULL; -- -- } -- -- if (!obj) { -- T(YAFFS_TRACE_OS, -- ("yaffs_get_inode for NULL object!!\n")); -- return NULL; -- -- } -- -- T(YAFFS_TRACE_OS, -- ("yaffs_get_inode for object %d\n", obj->objectId)); -- -- inode = Y_IGET(sb, obj->objectId); -- if (IS_ERR(inode)) -- return NULL; -- -- /* NB Side effect: iget calls back to yaffs_read_inode(). */ -- /* iget also increments the inode's i_count */ -- /* NB You can't be holding grossLock or deadlock will happen! */ -- -- return inode; --} -- --static ssize_t yaffs_file_write(struct file *f, const char *buf, size_t n, -- loff_t *pos) --{ -- yaffs_Object *obj; -- int nWritten, ipos; -- struct inode *inode; -- yaffs_Device *dev; -- -- obj = yaffs_DentryToObject(f->f_dentry); -- -- dev = obj->myDev; -- -- yaffs_GrossLock(dev); -- -- inode = f->f_dentry->d_inode; -- -- if (!S_ISBLK(inode->i_mode) && f->f_flags & O_APPEND) -- ipos = inode->i_size; -- else -- ipos = *pos; -- -- if (!obj) -- T(YAFFS_TRACE_OS, -- ("yaffs_file_write: hey obj is null!\n")); -- else -- T(YAFFS_TRACE_OS, -- ("yaffs_file_write about to write writing %zu bytes" -- "to object %d at %d\n", -- n, obj->objectId, ipos)); -- -- nWritten = yaffs_WriteDataToFile(obj, buf, ipos, n, 0); -- -- T(YAFFS_TRACE_OS, -- ("yaffs_file_write writing %zu bytes, %d written at %d\n", -- n, nWritten, ipos)); -- -- if (nWritten > 0) { -- ipos += nWritten; -- *pos = ipos; -- if (ipos > inode->i_size) { -- inode->i_size = ipos; -- inode->i_blocks = (ipos + 511) >> 9; -- -- T(YAFFS_TRACE_OS, -- ("yaffs_file_write size updated to %d bytes, " -- "%d blocks\n", -- ipos, (int)(inode->i_blocks))); -- } -- -- } -- yaffs_GrossUnlock(dev); -- return nWritten == 0 ? -ENOSPC : nWritten; --} -- --/* Space holding and freeing is done to ensure we have space available for write_begin/end */ --/* For now we just assume few parallel writes and check against a small number. */ --/* Todo: need to do this with a counter to handle parallel reads better */ -- --static ssize_t yaffs_hold_space(struct file *f) --{ -- yaffs_Object *obj; -- yaffs_Device *dev; -- -- int nFreeChunks; -- -- -- obj = yaffs_DentryToObject(f->f_dentry); -- -- dev = obj->myDev; -- -- yaffs_GrossLock(dev); -- -- nFreeChunks = yaffs_GetNumberOfFreeChunks(dev); -- -- yaffs_GrossUnlock(dev); -- -- return (nFreeChunks > 20) ? 1 : 0; --} -- --static void yaffs_release_space(struct file *f) --{ -- yaffs_Object *obj; -- yaffs_Device *dev; -- -- -- obj = yaffs_DentryToObject(f->f_dentry); -- -- dev = obj->myDev; -- -- yaffs_GrossLock(dev); -- -- -- yaffs_GrossUnlock(dev); --} -- --static int yaffs_readdir(struct file *f, void *dirent, filldir_t filldir) --{ -- yaffs_Object *obj; -- yaffs_Device *dev; -- struct inode *inode = f->f_dentry->d_inode; -- unsigned long offset, curoffs; -- struct ylist_head *i; -- yaffs_Object *l; -- -- char name[YAFFS_MAX_NAME_LENGTH + 1]; -- -- obj = yaffs_DentryToObject(f->f_dentry); -- dev = obj->myDev; -- -- yaffs_GrossLock(dev); -- -- offset = f->f_pos; -- -- T(YAFFS_TRACE_OS, ("yaffs_readdir: starting at %d\n", (int)offset)); -- -- if (offset == 0) { -- T(YAFFS_TRACE_OS, -- ("yaffs_readdir: entry . ino %d \n", -- (int)inode->i_ino)); -- if (filldir(dirent, ".", 1, offset, inode->i_ino, DT_DIR) < 0) -- goto out; -- offset++; -- f->f_pos++; -- } -- if (offset == 1) { -- T(YAFFS_TRACE_OS, -- ("yaffs_readdir: entry .. ino %d \n", -- (int)f->f_dentry->d_parent->d_inode->i_ino)); -- if (filldir(dirent, "..", 2, offset, -- f->f_dentry->d_parent->d_inode->i_ino, DT_DIR) < 0) -- goto out; -- offset++; -- f->f_pos++; -- } -- -- curoffs = 1; -- -- /* If the directory has changed since the open or last call to -- readdir, rewind to after the 2 canned entries. */ -- -- if (f->f_version != inode->i_version) { -- offset = 2; -- f->f_pos = offset; -- f->f_version = inode->i_version; -- } -- -- ylist_for_each(i, &obj->variant.directoryVariant.children) { -- curoffs++; -- if (curoffs >= offset) { -- l = ylist_entry(i, yaffs_Object, siblings); -- -- yaffs_GetObjectName(l, name, -- YAFFS_MAX_NAME_LENGTH + 1); -- T(YAFFS_TRACE_OS, -- ("yaffs_readdir: %s inode %d\n", name, -- yaffs_GetObjectInode(l))); -- -- if (filldir(dirent, -- name, -- strlen(name), -- offset, -- yaffs_GetObjectInode(l), -- yaffs_GetObjectType(l)) < 0) -- goto up_and_out; -- -- offset++; -- f->f_pos++; -- } -- } -- --up_and_out: --out: -- yaffs_GrossUnlock(dev); -- -- return 0; --} -- --/* -- * File creation. Allocate an inode, and we're done.. -- */ -- --#if LINUX_VERSION_CODE < KERNEL_VERSION(2, 6, 29) --#define YCRED(x) x --#else --#define YCRED(x) (x->cred) --#endif -- --#if (LINUX_VERSION_CODE > KERNEL_VERSION(2, 5, 0)) --static int yaffs_mknod(struct inode *dir, struct dentry *dentry, int mode, -- dev_t rdev) --#else --static int yaffs_mknod(struct inode *dir, struct dentry *dentry, int mode, -- int rdev) --#endif --{ -- struct inode *inode; -- -- yaffs_Object *obj = NULL; -- yaffs_Device *dev; -- -- yaffs_Object *parent = yaffs_InodeToObject(dir); -- -- int error = -ENOSPC; -- uid_t uid = YCRED(current)->fsuid; -- gid_t gid = (dir->i_mode & S_ISGID) ? dir->i_gid : YCRED(current)->fsgid; -- -- if ((dir->i_mode & S_ISGID) && S_ISDIR(mode)) -- mode |= S_ISGID; -- -- if (parent) { -- T(YAFFS_TRACE_OS, -- ("yaffs_mknod: parent object %d type %d\n", -- parent->objectId, parent->variantType)); -- } else { -- T(YAFFS_TRACE_OS, -- ("yaffs_mknod: could not get parent object\n")); -- return -EPERM; -- } -- -- T(YAFFS_TRACE_OS, ("yaffs_mknod: making oject for %s, " -- "mode %x dev %x\n", -- dentry->d_name.name, mode, rdev)); -- -- dev = parent->myDev; -- -- yaffs_GrossLock(dev); -- -- switch (mode & S_IFMT) { -- default: -- /* Special (socket, fifo, device...) */ -- T(YAFFS_TRACE_OS, ("yaffs_mknod: making special\n")); --#if (LINUX_VERSION_CODE > KERNEL_VERSION(2, 5, 0)) -- obj = yaffs_MknodSpecial(parent, dentry->d_name.name, mode, uid, -- gid, old_encode_dev(rdev)); --#else -- obj = yaffs_MknodSpecial(parent, dentry->d_name.name, mode, uid, -- gid, rdev); --#endif -- break; -- case S_IFREG: /* file */ -- T(YAFFS_TRACE_OS, ("yaffs_mknod: making file\n")); -- obj = yaffs_MknodFile(parent, dentry->d_name.name, mode, uid, -- gid); -- break; -- case S_IFDIR: /* directory */ -- T(YAFFS_TRACE_OS, -- ("yaffs_mknod: making directory\n")); -- obj = yaffs_MknodDirectory(parent, dentry->d_name.name, mode, -- uid, gid); -- break; -- case S_IFLNK: /* symlink */ -- T(YAFFS_TRACE_OS, ("yaffs_mknod: making symlink\n")); -- obj = NULL; /* Do we ever get here? */ -- break; -- } -- -- /* Can not call yaffs_get_inode() with gross lock held */ -- yaffs_GrossUnlock(dev); -- -- if (obj) { -- inode = yaffs_get_inode(dir->i_sb, mode, rdev, obj); -- d_instantiate(dentry, inode); -- T(YAFFS_TRACE_OS, -- ("yaffs_mknod created object %d count = %d\n", -- obj->objectId, atomic_read(&inode->i_count))); -- error = 0; -- } else { -- T(YAFFS_TRACE_OS, -- ("yaffs_mknod failed making object\n")); -- error = -ENOMEM; -- } -- -- return error; --} -- --static int yaffs_mkdir(struct inode *dir, struct dentry *dentry, int mode) --{ -- int retVal; -- T(YAFFS_TRACE_OS, ("yaffs_mkdir\n")); -- retVal = yaffs_mknod(dir, dentry, mode | S_IFDIR, 0); -- return retVal; --} -- --#if (LINUX_VERSION_CODE > KERNEL_VERSION(2, 5, 0)) --static int yaffs_create(struct inode *dir, struct dentry *dentry, int mode, -- struct nameidata *n) --#else --static int yaffs_create(struct inode *dir, struct dentry *dentry, int mode) --#endif --{ -- T(YAFFS_TRACE_OS, ("yaffs_create\n")); -- return yaffs_mknod(dir, dentry, mode | S_IFREG, 0); --} -- --static int yaffs_unlink(struct inode *dir, struct dentry *dentry) --{ -- int retVal; -- -- yaffs_Device *dev; -- -- T(YAFFS_TRACE_OS, -- ("yaffs_unlink %d:%s\n", (int)(dir->i_ino), -- dentry->d_name.name)); -- -- dev = yaffs_InodeToObject(dir)->myDev; -- -- yaffs_GrossLock(dev); -- -- retVal = yaffs_Unlink(yaffs_InodeToObject(dir), dentry->d_name.name); -- -- if (retVal == YAFFS_OK) { -- dentry->d_inode->i_nlink--; -- dir->i_version++; -- yaffs_GrossUnlock(dev); -- mark_inode_dirty(dentry->d_inode); -- return 0; -- } -- yaffs_GrossUnlock(dev); -- return -ENOTEMPTY; --} -- --/* -- * Create a link... -- */ --static int yaffs_link(struct dentry *old_dentry, struct inode *dir, -- struct dentry *dentry) --{ -- struct inode *inode = old_dentry->d_inode; -- yaffs_Object *obj = NULL; -- yaffs_Object *link = NULL; -- yaffs_Device *dev; -- -- T(YAFFS_TRACE_OS, ("yaffs_link\n")); -- -- obj = yaffs_InodeToObject(inode); -- dev = obj->myDev; -- -- yaffs_GrossLock(dev); -- -- if (!S_ISDIR(inode->i_mode)) /* Don't link directories */ -- link = yaffs_Link(yaffs_InodeToObject(dir), dentry->d_name.name, -- obj); -- -- if (link) { -- old_dentry->d_inode->i_nlink = yaffs_GetObjectLinkCount(obj); -- d_instantiate(dentry, old_dentry->d_inode); -- atomic_inc(&old_dentry->d_inode->i_count); -- T(YAFFS_TRACE_OS, -- ("yaffs_link link count %d i_count %d\n", -- old_dentry->d_inode->i_nlink, -- atomic_read(&old_dentry->d_inode->i_count))); -- } -- -- yaffs_GrossUnlock(dev); -- -- if (link) -- return 0; -- -- return -EPERM; --} -- --static int yaffs_symlink(struct inode *dir, struct dentry *dentry, -- const char *symname) --{ -- yaffs_Object *obj; -- yaffs_Device *dev; -- uid_t uid = YCRED(current)->fsuid; -- gid_t gid = (dir->i_mode & S_ISGID) ? dir->i_gid : YCRED(current)->fsgid; -- -- T(YAFFS_TRACE_OS, ("yaffs_symlink\n")); -- -- dev = yaffs_InodeToObject(dir)->myDev; -- yaffs_GrossLock(dev); -- obj = yaffs_MknodSymLink(yaffs_InodeToObject(dir), dentry->d_name.name, -- S_IFLNK | S_IRWXUGO, uid, gid, symname); -- yaffs_GrossUnlock(dev); -- -- if (obj) { -- struct inode *inode; -- -- inode = yaffs_get_inode(dir->i_sb, obj->yst_mode, 0, obj); -- d_instantiate(dentry, inode); -- T(YAFFS_TRACE_OS, ("symlink created OK\n")); -- return 0; -- } else { -- T(YAFFS_TRACE_OS, ("symlink not created\n")); -- } -- -- return -ENOMEM; --} -- --static int yaffs_sync_object(struct file *file, struct dentry *dentry, -- int datasync) --{ -- -- yaffs_Object *obj; -- yaffs_Device *dev; -- -- obj = yaffs_DentryToObject(dentry); -- -- dev = obj->myDev; -- -- T(YAFFS_TRACE_OS, ("yaffs_sync_object\n")); -- yaffs_GrossLock(dev); -- yaffs_FlushFile(obj, 1); -- yaffs_GrossUnlock(dev); -- return 0; --} -- --/* -- * The VFS layer already does all the dentry stuff for rename. -- * -- * NB: POSIX says you can rename an object over an old object of the same name -- */ --static int yaffs_rename(struct inode *old_dir, struct dentry *old_dentry, -- struct inode *new_dir, struct dentry *new_dentry) --{ -- yaffs_Device *dev; -- int retVal = YAFFS_FAIL; -- yaffs_Object *target; -- -- T(YAFFS_TRACE_OS, ("yaffs_rename\n")); -- dev = yaffs_InodeToObject(old_dir)->myDev; -- -- yaffs_GrossLock(dev); -- -- /* Check if the target is an existing directory that is not empty. */ -- target = yaffs_FindObjectByName(yaffs_InodeToObject(new_dir), -- new_dentry->d_name.name); -- -- -- -- if (target && target->variantType == YAFFS_OBJECT_TYPE_DIRECTORY && -- !ylist_empty(&target->variant.directoryVariant.children)) { -- -- T(YAFFS_TRACE_OS, ("target is non-empty dir\n")); -- -- retVal = YAFFS_FAIL; -- } else { -- /* Now does unlinking internally using shadowing mechanism */ -- T(YAFFS_TRACE_OS, ("calling yaffs_RenameObject\n")); -- -- retVal = yaffs_RenameObject(yaffs_InodeToObject(old_dir), -- old_dentry->d_name.name, -- yaffs_InodeToObject(new_dir), -- new_dentry->d_name.name); -- } -- yaffs_GrossUnlock(dev); -- -- if (retVal == YAFFS_OK) { -- if (target) { -- new_dentry->d_inode->i_nlink--; -- mark_inode_dirty(new_dentry->d_inode); -- } -- -- return 0; -- } else { -- return -ENOTEMPTY; -- } --} -- --static int yaffs_setattr(struct dentry *dentry, struct iattr *attr) --{ -- struct inode *inode = dentry->d_inode; -- int error; -- yaffs_Device *dev; -- -- T(YAFFS_TRACE_OS, -- ("yaffs_setattr of object %d\n", -- yaffs_InodeToObject(inode)->objectId)); -- -- error = inode_change_ok(inode, attr); -- if (error == 0) { -- dev = yaffs_InodeToObject(inode)->myDev; -- yaffs_GrossLock(dev); -- if (yaffs_SetAttributes(yaffs_InodeToObject(inode), attr) == -- YAFFS_OK) { -- error = 0; -- } else { -- error = -EPERM; -- } -- yaffs_GrossUnlock(dev); -- if (!error) -- error = inode_setattr(inode, attr); -- } -- return error; --} -- --#if (LINUX_VERSION_CODE > KERNEL_VERSION(2, 6, 17)) --static int yaffs_statfs(struct dentry *dentry, struct kstatfs *buf) --{ -- yaffs_Device *dev = yaffs_DentryToObject(dentry)->myDev; -- struct super_block *sb = dentry->d_sb; --#elif (LINUX_VERSION_CODE > KERNEL_VERSION(2, 5, 0)) --static int yaffs_statfs(struct super_block *sb, struct kstatfs *buf) --{ -- yaffs_Device *dev = yaffs_SuperToDevice(sb); --#else --static int yaffs_statfs(struct super_block *sb, struct statfs *buf) --{ -- yaffs_Device *dev = yaffs_SuperToDevice(sb); --#endif -- -- T(YAFFS_TRACE_OS, ("yaffs_statfs\n")); -- -- yaffs_GrossLock(dev); -- -- buf->f_type = YAFFS_MAGIC; -- buf->f_bsize = sb->s_blocksize; -- buf->f_namelen = 255; -- -- if (dev->nDataBytesPerChunk & (dev->nDataBytesPerChunk - 1)) { -- /* Do this if chunk size is not a power of 2 */ -- -- uint64_t bytesInDev; -- uint64_t bytesFree; -- -- bytesInDev = ((uint64_t)((dev->endBlock - dev->startBlock + 1))) * -- ((uint64_t)(dev->nChunksPerBlock * dev->nDataBytesPerChunk)); -- -- do_div(bytesInDev, sb->s_blocksize); /* bytesInDev becomes the number of blocks */ -- buf->f_blocks = bytesInDev; -- -- bytesFree = ((uint64_t)(yaffs_GetNumberOfFreeChunks(dev))) * -- ((uint64_t)(dev->nDataBytesPerChunk)); -- -- do_div(bytesFree, sb->s_blocksize); -- -- buf->f_bfree = bytesFree; -- -- } else if (sb->s_blocksize > dev->nDataBytesPerChunk) { -- -- buf->f_blocks = -- (dev->endBlock - dev->startBlock + 1) * -- dev->nChunksPerBlock / -- (sb->s_blocksize / dev->nDataBytesPerChunk); -- buf->f_bfree = -- yaffs_GetNumberOfFreeChunks(dev) / -- (sb->s_blocksize / dev->nDataBytesPerChunk); -- } else { -- buf->f_blocks = -- (dev->endBlock - dev->startBlock + 1) * -- dev->nChunksPerBlock * -- (dev->nDataBytesPerChunk / sb->s_blocksize); -- -- buf->f_bfree = -- yaffs_GetNumberOfFreeChunks(dev) * -- (dev->nDataBytesPerChunk / sb->s_blocksize); -- } -- -- buf->f_files = 0; -- buf->f_ffree = 0; -- buf->f_bavail = buf->f_bfree; -- -- yaffs_GrossUnlock(dev); -- return 0; --} -- -- --static int yaffs_do_sync_fs(struct super_block *sb) --{ -- -- yaffs_Device *dev = yaffs_SuperToDevice(sb); -- T(YAFFS_TRACE_OS, ("yaffs_do_sync_fs\n")); -- -- if (sb->s_dirt) { -- yaffs_GrossLock(dev); -- -- if (dev) { -- yaffs_FlushEntireDeviceCache(dev); -- yaffs_CheckpointSave(dev); -- } -- -- yaffs_GrossUnlock(dev); -- -- sb->s_dirt = 0; -- } -- return 0; --} -- -- --#if (LINUX_VERSION_CODE > KERNEL_VERSION(2, 6, 17)) --static void yaffs_write_super(struct super_block *sb) --#else --static int yaffs_write_super(struct super_block *sb) --#endif --{ -- -- T(YAFFS_TRACE_OS, ("yaffs_write_super\n")); -- if (yaffs_auto_checkpoint >= 2) -- yaffs_do_sync_fs(sb); --#if (LINUX_VERSION_CODE < KERNEL_VERSION(2, 6, 18)) -- return 0; --#endif --} -- -- --#if (LINUX_VERSION_CODE > KERNEL_VERSION(2, 6, 17)) --static int yaffs_sync_fs(struct super_block *sb, int wait) --#else --static int yaffs_sync_fs(struct super_block *sb) --#endif --{ -- T(YAFFS_TRACE_OS, ("yaffs_sync_fs\n")); -- -- if (yaffs_auto_checkpoint >= 1) -- yaffs_do_sync_fs(sb); -- -- return 0; --} -- --#ifdef YAFFS_USE_OWN_IGET -- --static struct inode *yaffs_iget(struct super_block *sb, unsigned long ino) --{ -- struct inode *inode; -- yaffs_Object *obj; -- yaffs_Device *dev = yaffs_SuperToDevice(sb); -- -- T(YAFFS_TRACE_OS, -- ("yaffs_iget for %lu\n", ino)); -- -- inode = iget_locked(sb, ino); -- if (!inode) -- return ERR_PTR(-ENOMEM); -- if (!(inode->i_state & I_NEW)) -- return inode; -- -- /* NB This is called as a side effect of other functions, but -- * we had to release the lock to prevent deadlocks, so -- * need to lock again. -- */ -- -- yaffs_GrossLock(dev); -- -- obj = yaffs_FindObjectByNumber(dev, inode->i_ino); -- -- yaffs_FillInodeFromObject(inode, obj); -- -- yaffs_GrossUnlock(dev); -- -- unlock_new_inode(inode); -- return inode; --} -- --#else -- --static void yaffs_read_inode(struct inode *inode) --{ -- /* NB This is called as a side effect of other functions, but -- * we had to release the lock to prevent deadlocks, so -- * need to lock again. -- */ -- -- yaffs_Object *obj; -- yaffs_Device *dev = yaffs_SuperToDevice(inode->i_sb); -- -- T(YAFFS_TRACE_OS, -- ("yaffs_read_inode for %d\n", (int)inode->i_ino)); -- -- yaffs_GrossLock(dev); -- -- obj = yaffs_FindObjectByNumber(dev, inode->i_ino); -- -- yaffs_FillInodeFromObject(inode, obj); -- -- yaffs_GrossUnlock(dev); --} -- --#endif -- --static YLIST_HEAD(yaffs_dev_list); -- --#if 0 /* not used */ --static int yaffs_remount_fs(struct super_block *sb, int *flags, char *data) --{ -- yaffs_Device *dev = yaffs_SuperToDevice(sb); -- -- if (*flags & MS_RDONLY) { -- struct mtd_info *mtd = yaffs_SuperToDevice(sb)->genericDevice; -- -- T(YAFFS_TRACE_OS, -- ("yaffs_remount_fs: %s: RO\n", dev->name)); -- -- yaffs_GrossLock(dev); -- -- yaffs_FlushEntireDeviceCache(dev); -- -- yaffs_CheckpointSave(dev); -- -- if (mtd->sync) -- mtd->sync(mtd); -- -- yaffs_GrossUnlock(dev); -- } else { -- T(YAFFS_TRACE_OS, -- ("yaffs_remount_fs: %s: RW\n", dev->name)); -- } -- -- return 0; --} --#endif -- --static void yaffs_put_super(struct super_block *sb) --{ -- yaffs_Device *dev = yaffs_SuperToDevice(sb); -- -- T(YAFFS_TRACE_OS, ("yaffs_put_super\n")); -- -- yaffs_GrossLock(dev); -- -- yaffs_FlushEntireDeviceCache(dev); -- -- yaffs_CheckpointSave(dev); -- -- if (dev->putSuperFunc) -- dev->putSuperFunc(sb); -- -- yaffs_Deinitialise(dev); -- -- yaffs_GrossUnlock(dev); -- -- /* we assume this is protected by lock_kernel() in mount/umount */ -- ylist_del(&dev->devList); -- -- if (dev->spareBuffer) { -- YFREE(dev->spareBuffer); -- dev->spareBuffer = NULL; -- } -- -- kfree(dev); --} -- -- --static void yaffs_MTDPutSuper(struct super_block *sb) --{ -- struct mtd_info *mtd = yaffs_SuperToDevice(sb)->genericDevice; -- -- if (mtd->sync) -- mtd->sync(mtd); -- -- put_mtd_device(mtd); --} -- -- --static void yaffs_MarkSuperBlockDirty(void *vsb) --{ -- struct super_block *sb = (struct super_block *)vsb; -- -- T(YAFFS_TRACE_OS, ("yaffs_MarkSuperBlockDirty() sb = %p\n", sb)); -- if (sb) -- sb->s_dirt = 1; --} -- --typedef struct { -- int inband_tags; -- int skip_checkpoint_read; -- int skip_checkpoint_write; -- int no_cache; --} yaffs_options; -- --#define MAX_OPT_LEN 20 --static int yaffs_parse_options(yaffs_options *options, const char *options_str) --{ -- char cur_opt[MAX_OPT_LEN + 1]; -- int p; -- int error = 0; -- -- /* Parse through the options which is a comma seperated list */ -- -- while (options_str && *options_str && !error) { -- memset(cur_opt, 0, MAX_OPT_LEN + 1); -- p = 0; -- -- while (*options_str && *options_str != ',') { -- if (p < MAX_OPT_LEN) { -- cur_opt[p] = *options_str; -- p++; -- } -- options_str++; -- } -- -- if (!strcmp(cur_opt, "inband-tags")) -- options->inband_tags = 1; -- else if (!strcmp(cur_opt, "no-cache")) -- options->no_cache = 1; -- else if (!strcmp(cur_opt, "no-checkpoint-read")) -- options->skip_checkpoint_read = 1; -- else if (!strcmp(cur_opt, "no-checkpoint-write")) -- options->skip_checkpoint_write = 1; -- else if (!strcmp(cur_opt, "no-checkpoint")) { -- options->skip_checkpoint_read = 1; -- options->skip_checkpoint_write = 1; -- } else { -- printk(KERN_INFO "yaffs: Bad mount option \"%s\"\n", -- cur_opt); -- error = 1; -- } -- } -- -- return error; --} -- --static struct super_block *yaffs_internal_read_super(int yaffsVersion, -- struct super_block *sb, -- void *data, int silent) --{ -- int nBlocks; -- struct inode *inode = NULL; -- struct dentry *root; -- yaffs_Device *dev = 0; -- char devname_buf[BDEVNAME_SIZE + 1]; -- struct mtd_info *mtd; -- int err; -- char *data_str = (char *)data; -- -- yaffs_options options; -- -- sb->s_magic = YAFFS_MAGIC; -- sb->s_op = &yaffs_super_ops; -- sb->s_flags |= MS_NOATIME; -- -- if (!sb) -- printk(KERN_INFO "yaffs: sb is NULL\n"); -- else if (!sb->s_dev) -- printk(KERN_INFO "yaffs: sb->s_dev is NULL\n"); -- else if (!yaffs_devname(sb, devname_buf)) -- printk(KERN_INFO "yaffs: devname is NULL\n"); -- else -- printk(KERN_INFO "yaffs: dev is %d name is \"%s\"\n", -- sb->s_dev, -- yaffs_devname(sb, devname_buf)); -- -- if (!data_str) -- data_str = ""; -- -- printk(KERN_INFO "yaffs: passed flags \"%s\"\n", data_str); -- -- memset(&options, 0, sizeof(options)); -- -- if (yaffs_parse_options(&options, data_str)) { -- /* Option parsing failed */ -- return NULL; -- } -- -- -- sb->s_blocksize = PAGE_CACHE_SIZE; -- sb->s_blocksize_bits = PAGE_CACHE_SHIFT; -- T(YAFFS_TRACE_OS, ("yaffs_read_super: Using yaffs%d\n", yaffsVersion)); -- T(YAFFS_TRACE_OS, -- ("yaffs_read_super: block size %d\n", (int)(sb->s_blocksize))); -- --#ifdef CONFIG_YAFFS_DISABLE_WRITE_VERIFY -- T(YAFFS_TRACE_OS, -- ("yaffs: Write verification disabled. All guarantees " -- "null and void\n")); --#endif -- -- T(YAFFS_TRACE_ALWAYS, ("yaffs: Attempting MTD mount on %u.%u, " -- "\"%s\"\n", -- MAJOR(sb->s_dev), MINOR(sb->s_dev), -- yaffs_devname(sb, devname_buf))); -- -- /* Check it's an mtd device..... */ -- if (MAJOR(sb->s_dev) != MTD_BLOCK_MAJOR) -- return NULL; /* This isn't an mtd device */ -- -- /* Get the device */ -- mtd = get_mtd_device(NULL, MINOR(sb->s_dev)); -- if (!mtd) { -- T(YAFFS_TRACE_ALWAYS, -- ("yaffs: MTD device #%u doesn't appear to exist\n", -- MINOR(sb->s_dev))); -- return NULL; -- } -- /* Check it's NAND */ -- if (mtd->type != MTD_NANDFLASH) { -- T(YAFFS_TRACE_ALWAYS, -- ("yaffs: MTD device is not NAND it's type %d\n", mtd->type)); -- return NULL; -- } -- -- T(YAFFS_TRACE_OS, (" erase %p\n", mtd->erase)); -- T(YAFFS_TRACE_OS, (" read %p\n", mtd->read)); -- T(YAFFS_TRACE_OS, (" write %p\n", mtd->write)); -- T(YAFFS_TRACE_OS, (" readoob %p\n", mtd->read_oob)); -- T(YAFFS_TRACE_OS, (" writeoob %p\n", mtd->write_oob)); -- T(YAFFS_TRACE_OS, (" block_isbad %p\n", mtd->block_isbad)); -- T(YAFFS_TRACE_OS, (" block_markbad %p\n", mtd->block_markbad)); -- T(YAFFS_TRACE_OS, (" %s %d\n", WRITE_SIZE_STR, WRITE_SIZE(mtd))); -- T(YAFFS_TRACE_OS, (" oobsize %d\n", mtd->oobsize)); -- T(YAFFS_TRACE_OS, (" erasesize %d\n", mtd->erasesize)); --#if LINUX_VERSION_CODE < KERNEL_VERSION(2, 6, 29) -- T(YAFFS_TRACE_OS, (" size %u\n", mtd->size)); --#else -- T(YAFFS_TRACE_OS, (" size %lld\n", mtd->size)); --#endif -- --#ifdef CONFIG_YAFFS_AUTO_YAFFS2 -- -- if (yaffsVersion == 1 && WRITE_SIZE(mtd) >= 2048) { -- T(YAFFS_TRACE_ALWAYS, ("yaffs: auto selecting yaffs2\n")); -- yaffsVersion = 2; -- } -- -- /* Added NCB 26/5/2006 for completeness */ -- if (yaffsVersion == 2 && !options.inband_tags && WRITE_SIZE(mtd) == 512) { -- T(YAFFS_TRACE_ALWAYS, ("yaffs: auto selecting yaffs1\n")); -- yaffsVersion = 1; -- } -- --#endif -- -- if (yaffsVersion == 2) { -- /* Check for version 2 style functions */ -- if (!mtd->erase || -- !mtd->block_isbad || -- !mtd->block_markbad || -- !mtd->read || -- !mtd->write || --#if (LINUX_VERSION_CODE > KERNEL_VERSION(2, 6, 17)) -- !mtd->read_oob || !mtd->write_oob) { --#else -- !mtd->write_ecc || -- !mtd->read_ecc || !mtd->read_oob || !mtd->write_oob) { --#endif -- T(YAFFS_TRACE_ALWAYS, -- ("yaffs: MTD device does not support required " -- "functions\n"));; -- return NULL; -- } -- -- if ((WRITE_SIZE(mtd) < YAFFS_MIN_YAFFS2_CHUNK_SIZE || -- mtd->oobsize < YAFFS_MIN_YAFFS2_SPARE_SIZE) && -- !options.inband_tags) { -- T(YAFFS_TRACE_ALWAYS, -- ("yaffs: MTD device does not have the " -- "right page sizes\n")); -- return NULL; -- } -- } else { -- /* Check for V1 style functions */ -- if (!mtd->erase || -- !mtd->read || -- !mtd->write || --#if (LINUX_VERSION_CODE > KERNEL_VERSION(2, 6, 17)) -- !mtd->read_oob || !mtd->write_oob) { --#else -- !mtd->write_ecc || -- !mtd->read_ecc || !mtd->read_oob || !mtd->write_oob) { --#endif -- T(YAFFS_TRACE_ALWAYS, -- ("yaffs: MTD device does not support required " -- "functions\n"));; -- return NULL; -- } -- -- if (WRITE_SIZE(mtd) < YAFFS_BYTES_PER_CHUNK || -- mtd->oobsize != YAFFS_BYTES_PER_SPARE) { -- T(YAFFS_TRACE_ALWAYS, -- ("yaffs: MTD device does not support have the " -- "right page sizes\n")); -- return NULL; -- } -- } -- -- /* OK, so if we got here, we have an MTD that's NAND and looks -- * like it has the right capabilities -- * Set the yaffs_Device up for mtd -- */ -- --#if (LINUX_VERSION_CODE > KERNEL_VERSION(2, 5, 0)) -- sb->s_fs_info = dev = kmalloc(sizeof(yaffs_Device), GFP_KERNEL); --#else -- sb->u.generic_sbp = dev = kmalloc(sizeof(yaffs_Device), GFP_KERNEL); --#endif -- if (!dev) { -- /* Deep shit could not allocate device structure */ -- T(YAFFS_TRACE_ALWAYS, -- ("yaffs_read_super: Failed trying to allocate " -- "yaffs_Device. \n")); -- return NULL; -- } -- -- memset(dev, 0, sizeof(yaffs_Device)); -- dev->genericDevice = mtd; -- dev->name = mtd->name; -- -- /* Set up the memory size parameters.... */ -- -- nBlocks = YCALCBLOCKS(mtd->size, (YAFFS_CHUNKS_PER_BLOCK * YAFFS_BYTES_PER_CHUNK)); -- -- dev->startBlock = 0; -- dev->endBlock = nBlocks - 1; -- dev->nChunksPerBlock = YAFFS_CHUNKS_PER_BLOCK; -- dev->totalBytesPerChunk = YAFFS_BYTES_PER_CHUNK; -- dev->nReservedBlocks = 5; -- dev->nShortOpCaches = (options.no_cache) ? 0 : 10; -- dev->inbandTags = options.inband_tags; -- -- /* ... and the functions. */ -- if (yaffsVersion == 2) { -- dev->writeChunkWithTagsToNAND = -- nandmtd2_WriteChunkWithTagsToNAND; -- dev->readChunkWithTagsFromNAND = -- nandmtd2_ReadChunkWithTagsFromNAND; -- dev->markNANDBlockBad = nandmtd2_MarkNANDBlockBad; -- dev->queryNANDBlock = nandmtd2_QueryNANDBlock; -- dev->spareBuffer = YMALLOC(mtd->oobsize); -- dev->isYaffs2 = 1; --#if (LINUX_VERSION_CODE > KERNEL_VERSION(2, 6, 17)) -- dev->totalBytesPerChunk = mtd->writesize; -- dev->nChunksPerBlock = mtd->erasesize / mtd->writesize; --#else -- dev->totalBytesPerChunk = mtd->oobblock; -- dev->nChunksPerBlock = mtd->erasesize / mtd->oobblock; --#endif -- nBlocks = YCALCBLOCKS(mtd->size, mtd->erasesize); -- -- dev->startBlock = 0; -- dev->endBlock = nBlocks - 1; -- } else { --#if (LINUX_VERSION_CODE > KERNEL_VERSION(2, 6, 17)) -- /* use the MTD interface in yaffs_mtdif1.c */ -- dev->writeChunkWithTagsToNAND = -- nandmtd1_WriteChunkWithTagsToNAND; -- dev->readChunkWithTagsFromNAND = -- nandmtd1_ReadChunkWithTagsFromNAND; -- dev->markNANDBlockBad = nandmtd1_MarkNANDBlockBad; -- dev->queryNANDBlock = nandmtd1_QueryNANDBlock; --#else -- dev->writeChunkToNAND = nandmtd_WriteChunkToNAND; -- dev->readChunkFromNAND = nandmtd_ReadChunkFromNAND; --#endif -- dev->isYaffs2 = 0; -- } -- /* ... and common functions */ -- dev->eraseBlockInNAND = nandmtd_EraseBlockInNAND; -- dev->initialiseNAND = nandmtd_InitialiseNAND; -- -- dev->putSuperFunc = yaffs_MTDPutSuper; -- -- dev->superBlock = (void *)sb; -- dev->markSuperBlockDirty = yaffs_MarkSuperBlockDirty; -- -- --#ifndef CONFIG_YAFFS_DOES_ECC -- dev->useNANDECC = 1; --#endif -- --#ifdef CONFIG_YAFFS_DISABLE_WIDE_TNODES -- dev->wideTnodesDisabled = 1; --#endif -- -- dev->skipCheckpointRead = options.skip_checkpoint_read; -- dev->skipCheckpointWrite = options.skip_checkpoint_write; -- -- /* we assume this is protected by lock_kernel() in mount/umount */ -- ylist_add_tail(&dev->devList, &yaffs_dev_list); -- -- init_MUTEX(&dev->grossLock); -- -- yaffs_GrossLock(dev); -- -- err = yaffs_GutsInitialise(dev); -- -- T(YAFFS_TRACE_OS, -- ("yaffs_read_super: guts initialised %s\n", -- (err == YAFFS_OK) ? "OK" : "FAILED")); -- -- /* Release lock before yaffs_get_inode() */ -- yaffs_GrossUnlock(dev); -- -- /* Create root inode */ -- if (err == YAFFS_OK) -- inode = yaffs_get_inode(sb, S_IFDIR | 0755, 0, -- yaffs_Root(dev)); -- -- if (!inode) -- return NULL; -- -- inode->i_op = &yaffs_dir_inode_operations; -- inode->i_fop = &yaffs_dir_operations; -- -- T(YAFFS_TRACE_OS, ("yaffs_read_super: got root inode\n")); -- -- root = d_alloc_root(inode); -- -- T(YAFFS_TRACE_OS, ("yaffs_read_super: d_alloc_root done\n")); -- -- if (!root) { -- iput(inode); -- return NULL; -- } -- sb->s_root = root; -- sb->s_dirt = !dev->isCheckpointed; -- T(YAFFS_TRACE_ALWAYS, -- ("yaffs_read_super: isCheckpointed %d\n", dev->isCheckpointed)); -- -- T(YAFFS_TRACE_OS, ("yaffs_read_super: done\n")); -- return sb; --} -- -- --#if (LINUX_VERSION_CODE > KERNEL_VERSION(2, 5, 0)) --static int yaffs_internal_read_super_mtd(struct super_block *sb, void *data, -- int silent) --{ -- return yaffs_internal_read_super(1, sb, data, silent) ? 0 : -EINVAL; --} -- --#if (LINUX_VERSION_CODE > KERNEL_VERSION(2, 6, 17)) --static int yaffs_read_super(struct file_system_type *fs, -- int flags, const char *dev_name, -- void *data, struct vfsmount *mnt) --{ -- -- return get_sb_bdev(fs, flags, dev_name, data, -- yaffs_internal_read_super_mtd, mnt); --} --#else --static struct super_block *yaffs_read_super(struct file_system_type *fs, -- int flags, const char *dev_name, -- void *data) --{ -- -- return get_sb_bdev(fs, flags, dev_name, data, -- yaffs_internal_read_super_mtd); --} --#endif -- --static struct file_system_type yaffs_fs_type = { -- .owner = THIS_MODULE, -- .name = "yaffs", -- .get_sb = yaffs_read_super, -- .kill_sb = kill_block_super, -- .fs_flags = FS_REQUIRES_DEV, --}; --#else --static struct super_block *yaffs_read_super(struct super_block *sb, void *data, -- int silent) --{ -- return yaffs_internal_read_super(1, sb, data, silent); --} -- --static DECLARE_FSTYPE(yaffs_fs_type, "yaffs", yaffs_read_super, -- FS_REQUIRES_DEV); --#endif -- -- --#ifdef CONFIG_YAFFS_YAFFS2 -- --#if (LINUX_VERSION_CODE > KERNEL_VERSION(2, 5, 0)) --static int yaffs2_internal_read_super_mtd(struct super_block *sb, void *data, -- int silent) --{ -- return yaffs_internal_read_super(2, sb, data, silent) ? 0 : -EINVAL; --} -- --#if (LINUX_VERSION_CODE > KERNEL_VERSION(2, 6, 17)) --static int yaffs2_read_super(struct file_system_type *fs, -- int flags, const char *dev_name, void *data, -- struct vfsmount *mnt) --{ -- return get_sb_bdev(fs, flags, dev_name, data, -- yaffs2_internal_read_super_mtd, mnt); --} --#else --static struct super_block *yaffs2_read_super(struct file_system_type *fs, -- int flags, const char *dev_name, -- void *data) --{ -- -- return get_sb_bdev(fs, flags, dev_name, data, -- yaffs2_internal_read_super_mtd); --} --#endif -- --static struct file_system_type yaffs2_fs_type = { -- .owner = THIS_MODULE, -- .name = "yaffs2", -- .get_sb = yaffs2_read_super, -- .kill_sb = kill_block_super, -- .fs_flags = FS_REQUIRES_DEV, --}; --#else --static struct super_block *yaffs2_read_super(struct super_block *sb, -- void *data, int silent) --{ -- return yaffs_internal_read_super(2, sb, data, silent); --} -- --static DECLARE_FSTYPE(yaffs2_fs_type, "yaffs2", yaffs2_read_super, -- FS_REQUIRES_DEV); --#endif -- --#endif /* CONFIG_YAFFS_YAFFS2 */ -- --static struct proc_dir_entry *my_proc_entry; -- --static char *yaffs_dump_dev(char *buf, yaffs_Device * dev) --{ -- buf += sprintf(buf, "startBlock......... %d\n", dev->startBlock); -- buf += sprintf(buf, "endBlock........... %d\n", dev->endBlock); -- buf += sprintf(buf, "totalBytesPerChunk. %d\n", dev->totalBytesPerChunk); -- buf += sprintf(buf, "nDataBytesPerChunk. %d\n", dev->nDataBytesPerChunk); -- buf += sprintf(buf, "chunkGroupBits..... %d\n", dev->chunkGroupBits); -- buf += sprintf(buf, "chunkGroupSize..... %d\n", dev->chunkGroupSize); -- buf += sprintf(buf, "nErasedBlocks...... %d\n", dev->nErasedBlocks); -- buf += sprintf(buf, "nReservedBlocks.... %d\n", dev->nReservedBlocks); -- buf += sprintf(buf, "blocksInCheckpoint. %d\n", dev->blocksInCheckpoint); -- buf += sprintf(buf, "nTnodesCreated..... %d\n", dev->nTnodesCreated); -- buf += sprintf(buf, "nFreeTnodes........ %d\n", dev->nFreeTnodes); -- buf += sprintf(buf, "nObjectsCreated.... %d\n", dev->nObjectsCreated); -- buf += sprintf(buf, "nFreeObjects....... %d\n", dev->nFreeObjects); -- buf += sprintf(buf, "nFreeChunks........ %d\n", dev->nFreeChunks); -- buf += sprintf(buf, "nPageWrites........ %d\n", dev->nPageWrites); -- buf += sprintf(buf, "nPageReads......... %d\n", dev->nPageReads); -- buf += sprintf(buf, "nBlockErasures..... %d\n", dev->nBlockErasures); -- buf += sprintf(buf, "nGCCopies.......... %d\n", dev->nGCCopies); -- buf += sprintf(buf, "garbageCollections. %d\n", dev->garbageCollections); -- buf += sprintf(buf, "passiveGCs......... %d\n", -- dev->passiveGarbageCollections); -- buf += sprintf(buf, "nRetriedWrites..... %d\n", dev->nRetriedWrites); -- buf += sprintf(buf, "nShortOpCaches..... %d\n", dev->nShortOpCaches); -- buf += sprintf(buf, "nRetireBlocks...... %d\n", dev->nRetiredBlocks); -- buf += sprintf(buf, "eccFixed........... %d\n", dev->eccFixed); -- buf += sprintf(buf, "eccUnfixed......... %d\n", dev->eccUnfixed); -- buf += sprintf(buf, "tagsEccFixed....... %d\n", dev->tagsEccFixed); -- buf += sprintf(buf, "tagsEccUnfixed..... %d\n", dev->tagsEccUnfixed); -- buf += sprintf(buf, "cacheHits.......... %d\n", dev->cacheHits); -- buf += sprintf(buf, "nDeletedFiles...... %d\n", dev->nDeletedFiles); -- buf += sprintf(buf, "nUnlinkedFiles..... %d\n", dev->nUnlinkedFiles); -- buf += -- sprintf(buf, "nBackgroudDeletions %d\n", dev->nBackgroundDeletions); -- buf += sprintf(buf, "useNANDECC......... %d\n", dev->useNANDECC); -- buf += sprintf(buf, "isYaffs2........... %d\n", dev->isYaffs2); -- buf += sprintf(buf, "inbandTags......... %d\n", dev->inbandTags); -- -- return buf; --} -- --static int yaffs_proc_read(char *page, -- char **start, -- off_t offset, int count, int *eof, void *data) --{ -- struct ylist_head *item; -- char *buf = page; -- int step = offset; -- int n = 0; -- -- /* Get proc_file_read() to step 'offset' by one on each sucessive call. -- * We use 'offset' (*ppos) to indicate where we are in devList. -- * This also assumes the user has posted a read buffer large -- * enough to hold the complete output; but that's life in /proc. -- */ -- -- *(int *)start = 1; -- -- /* Print header first */ -- if (step == 0) { -- buf += sprintf(buf, "YAFFS built:" __DATE__ " " __TIME__ -- "\n%s\n%s\n", yaffs_fs_c_version, -- yaffs_guts_c_version); -- } -- -- /* hold lock_kernel while traversing yaffs_dev_list */ -- lock_kernel(); -- -- /* Locate and print the Nth entry. Order N-squared but N is small. */ -- ylist_for_each(item, &yaffs_dev_list) { -- yaffs_Device *dev = ylist_entry(item, yaffs_Device, devList); -- if (n < step) { -- n++; -- continue; -- } -- buf += sprintf(buf, "\nDevice %d \"%s\"\n", n, dev->name); -- buf = yaffs_dump_dev(buf, dev); -- break; -- } -- unlock_kernel(); -- -- return buf - page < count ? buf - page : count; --} -- --/** -- * Set the verbosity of the warnings and error messages. -- * -- * Note that the names can only be a..z or _ with the current code. -- */ -- --static struct { -- char *mask_name; -- unsigned mask_bitfield; --} mask_flags[] = { -- {"allocate", YAFFS_TRACE_ALLOCATE}, -- {"always", YAFFS_TRACE_ALWAYS}, -- {"bad_blocks", YAFFS_TRACE_BAD_BLOCKS}, -- {"buffers", YAFFS_TRACE_BUFFERS}, -- {"bug", YAFFS_TRACE_BUG}, -- {"checkpt", YAFFS_TRACE_CHECKPOINT}, -- {"deletion", YAFFS_TRACE_DELETION}, -- {"erase", YAFFS_TRACE_ERASE}, -- {"error", YAFFS_TRACE_ERROR}, -- {"gc_detail", YAFFS_TRACE_GC_DETAIL}, -- {"gc", YAFFS_TRACE_GC}, -- {"mtd", YAFFS_TRACE_MTD}, -- {"nandaccess", YAFFS_TRACE_NANDACCESS}, -- {"os", YAFFS_TRACE_OS}, -- {"scan_debug", YAFFS_TRACE_SCAN_DEBUG}, -- {"scan", YAFFS_TRACE_SCAN}, -- {"tracing", YAFFS_TRACE_TRACING}, -- -- {"verify", YAFFS_TRACE_VERIFY}, -- {"verify_nand", YAFFS_TRACE_VERIFY_NAND}, -- {"verify_full", YAFFS_TRACE_VERIFY_FULL}, -- {"verify_all", YAFFS_TRACE_VERIFY_ALL}, -- -- {"write", YAFFS_TRACE_WRITE}, -- {"all", 0xffffffff}, -- {"none", 0}, -- {NULL, 0}, --}; -- --#define MAX_MASK_NAME_LENGTH 40 --static int yaffs_proc_write(struct file *file, const char *buf, -- unsigned long count, void *data) --{ -- unsigned rg = 0, mask_bitfield; -- char *end; -- char *mask_name; -- const char *x; -- char substring[MAX_MASK_NAME_LENGTH + 1]; -- int i; -- int done = 0; -- int add, len = 0; -- int pos = 0; -- -- rg = yaffs_traceMask; -- -- while (!done && (pos < count)) { -- done = 1; -- while ((pos < count) && isspace(buf[pos])) -- pos++; -- -- switch (buf[pos]) { -- case '+': -- case '-': -- case '=': -- add = buf[pos]; -- pos++; -- break; -- -- default: -- add = ' '; -- break; -- } -- mask_name = NULL; -- -- mask_bitfield = simple_strtoul(buf + pos, &end, 0); -- -- if (end > buf + pos) { -- mask_name = "numeral"; -- len = end - (buf + pos); -- pos += len; -- done = 0; -- } else { -- for (x = buf + pos, i = 0; -- (*x == '_' || (*x >= 'a' && *x <= 'z')) && -- i < MAX_MASK_NAME_LENGTH; x++, i++, pos++) -- substring[i] = *x; -- substring[i] = '\0'; -- -- for (i = 0; mask_flags[i].mask_name != NULL; i++) { -- if (strcmp(substring, mask_flags[i].mask_name) == 0) { -- mask_name = mask_flags[i].mask_name; -- mask_bitfield = mask_flags[i].mask_bitfield; -- done = 0; -- break; -- } -- } -- } -- -- if (mask_name != NULL) { -- done = 0; -- switch (add) { -- case '-': -- rg &= ~mask_bitfield; -- break; -- case '+': -- rg |= mask_bitfield; -- break; -- case '=': -- rg = mask_bitfield; -- break; -- default: -- rg |= mask_bitfield; -- break; -- } -- } -- } -- -- yaffs_traceMask = rg | YAFFS_TRACE_ALWAYS; -- -- printk(KERN_DEBUG "new trace = 0x%08X\n", yaffs_traceMask); -- -- if (rg & YAFFS_TRACE_ALWAYS) { -- for (i = 0; mask_flags[i].mask_name != NULL; i++) { -- char flag; -- flag = ((rg & mask_flags[i].mask_bitfield) == mask_flags[i].mask_bitfield) ? '+' : '-'; -- printk(KERN_DEBUG "%c%s\n", flag, mask_flags[i].mask_name); -- } -- } -- -- return count; --} -- --/* Stuff to handle installation of file systems */ --struct file_system_to_install { -- struct file_system_type *fst; -- int installed; --}; -- --static struct file_system_to_install fs_to_install[] = { -- {&yaffs_fs_type, 0}, -- {&yaffs2_fs_type, 0}, -- {NULL, 0} --}; -- --static int __init init_yaffs_fs(void) --{ -- int error = 0; -- struct file_system_to_install *fsinst; -- -- T(YAFFS_TRACE_ALWAYS, -- ("yaffs " __DATE__ " " __TIME__ " Installing. \n")); -- -- /* Install the proc_fs entry */ -- my_proc_entry = create_proc_entry("yaffs", -- S_IRUGO | S_IFREG, -- YPROC_ROOT); -- -- if (my_proc_entry) { -- my_proc_entry->write_proc = yaffs_proc_write; -- my_proc_entry->read_proc = yaffs_proc_read; -- my_proc_entry->data = NULL; -- } else -- return -ENOMEM; -- -- /* Now add the file system entries */ -- -- fsinst = fs_to_install; -- -- while (fsinst->fst && !error) { -- error = register_filesystem(fsinst->fst); -- if (!error) -- fsinst->installed = 1; -- fsinst++; -- } -- -- /* Any errors? uninstall */ -- if (error) { -- fsinst = fs_to_install; -- -- while (fsinst->fst) { -- if (fsinst->installed) { -- unregister_filesystem(fsinst->fst); -- fsinst->installed = 0; -- } -- fsinst++; -- } -- } -- -- return error; --} -- --static void __exit exit_yaffs_fs(void) --{ -- -- struct file_system_to_install *fsinst; -- -- T(YAFFS_TRACE_ALWAYS, ("yaffs " __DATE__ " " __TIME__ -- " removing. \n")); -- -- remove_proc_entry("yaffs", YPROC_ROOT); -- -- fsinst = fs_to_install; -- -- while (fsinst->fst) { -- if (fsinst->installed) { -- unregister_filesystem(fsinst->fst); -- fsinst->installed = 0; -- } -- fsinst++; -- } --} -- --module_init(init_yaffs_fs) --module_exit(exit_yaffs_fs) -- --MODULE_DESCRIPTION("YAFFS2 - a NAND specific flash file system"); --MODULE_AUTHOR("Charles Manning, Aleph One Ltd., 2002-2006"); --MODULE_LICENSE("GPL"); ---- a/fs/yaffs2/yaffs_getblockinfo.h -+++ b/fs/yaffs2/yaffs_getblockinfo.h -@@ -1,7 +1,7 @@ - /* - * YAFFS: Yet another Flash File System . A NAND-flash specific file system. - * -- * Copyright (C) 2002-2007 Aleph One Ltd. -+ * Copyright (C) 2002-2010 Aleph One Ltd. - * for Toby Churchill Ltd and Brightstar Engineering - * - * Created by Charles Manning -@@ -17,18 +17,19 @@ - #define __YAFFS_GETBLOCKINFO_H__ - - #include "yaffs_guts.h" -+#include "yaffs_trace.h" - - /* Function to manipulate block info */ --static Y_INLINE yaffs_BlockInfo *yaffs_GetBlockInfo(yaffs_Device * dev, int blk) -+static Y_INLINE yaffs_block_info_t *yaffs_get_block_info(yaffs_dev_t * dev, int blk) - { -- if (blk < dev->internalStartBlock || blk > dev->internalEndBlock) { -+ if (blk < dev->internal_start_block || blk > dev->internal_end_block) { - T(YAFFS_TRACE_ERROR, - (TSTR - ("**>> yaffs: getBlockInfo block %d is not valid" TENDSTR), - blk)); - YBUG(); - } -- return &dev->blockInfo[blk - dev->internalStartBlock]; -+ return &dev->block_info[blk - dev->internal_start_block]; - } - - #endif ---- a/fs/yaffs2/yaffs_guts.c -+++ b/fs/yaffs2/yaffs_guts.c -@@ -1,7 +1,7 @@ - /* - * YAFFS: Yet Another Flash File System. A NAND-flash specific file system. - * -- * Copyright (C) 2002-2007 Aleph One Ltd. -+ * Copyright (C) 2002-2010 Aleph One Ltd. - * for Toby Churchill Ltd and Brightstar Engineering - * - * Created by Charles Manning -@@ -10,11 +10,8 @@ - * it under the terms of the GNU General Public License version 2 as - * published by the Free Software Foundation. - */ -- --const char *yaffs_guts_c_version = -- "$Id: yaffs_guts.c,v 1.82 2009-03-09 04:24:17 charles Exp $"; -- - #include "yportenv.h" -+#include "yaffs_trace.h" - - #include "yaffsinterface.h" - #include "yaffs_guts.h" -@@ -22,118 +19,109 @@ const char *yaffs_guts_c_version = - #include "yaffs_getblockinfo.h" - - #include "yaffs_tagscompat.h" --#ifndef CONFIG_YAFFS_USE_OWN_SORT --#include "yaffs_qsort.h" --#endif -+ - #include "yaffs_nand.h" - --#include "yaffs_checkptrw.h" -+#include "yaffs_yaffs1.h" -+#include "yaffs_yaffs2.h" -+#include "yaffs_bitmap.h" -+#include "yaffs_verify.h" - - #include "yaffs_nand.h" - #include "yaffs_packedtags2.h" - -+#include "yaffs_nameval.h" -+#include "yaffs_allocator.h" - --#define YAFFS_PASSIVE_GC_CHUNKS 2 -+/* Note YAFFS_GC_GOOD_ENOUGH must be <= YAFFS_GC_PASSIVE_THRESHOLD */ -+#define YAFFS_GC_GOOD_ENOUGH 2 -+#define YAFFS_GC_PASSIVE_THRESHOLD 4 - - #include "yaffs_ecc.h" - - -+ - /* Robustification (if it ever comes about...) */ --static void yaffs_RetireBlock(yaffs_Device *dev, int blockInNAND); --static void yaffs_HandleWriteChunkError(yaffs_Device *dev, int chunkInNAND, -+static void yaffs_retire_block(yaffs_dev_t *dev, int flash_block); -+static void yaffs_handle_chunk_wr_error(yaffs_dev_t *dev, int nand_chunk, - int erasedOk); --static void yaffs_HandleWriteChunkOk(yaffs_Device *dev, int chunkInNAND, -+static void yaffs_handle_chunk_wr_ok(yaffs_dev_t *dev, int nand_chunk, - const __u8 *data, -- const yaffs_ExtendedTags *tags); --static void yaffs_HandleUpdateChunk(yaffs_Device *dev, int chunkInNAND, -- const yaffs_ExtendedTags *tags); -+ const yaffs_ext_tags *tags); -+static void yaffs_handle_chunk_update(yaffs_dev_t *dev, int nand_chunk, -+ const yaffs_ext_tags *tags); - - /* Other local prototypes */ --static int yaffs_UnlinkObject(yaffs_Object *obj); --static int yaffs_ObjectHasCachedWriteData(yaffs_Object *obj); -- --static void yaffs_HardlinkFixup(yaffs_Device *dev, yaffs_Object *hardList); -+static void yaffs_update_parent(yaffs_obj_t *obj); -+static int yaffs_unlink_obj(yaffs_obj_t *obj); -+static int yaffs_obj_cache_dirty(yaffs_obj_t *obj); - --static int yaffs_WriteNewChunkWithTagsToNAND(yaffs_Device *dev, -+static int yaffs_write_new_chunk(yaffs_dev_t *dev, - const __u8 *buffer, -- yaffs_ExtendedTags *tags, -+ yaffs_ext_tags *tags, - int useReserve); --static int yaffs_PutChunkIntoFile(yaffs_Object *in, int chunkInInode, -- int chunkInNAND, int inScan); - --static yaffs_Object *yaffs_CreateNewObject(yaffs_Device *dev, int number, -- yaffs_ObjectType type); --static void yaffs_AddObjectToDirectory(yaffs_Object *directory, -- yaffs_Object *obj); --static int yaffs_UpdateObjectHeader(yaffs_Object *in, const YCHAR *name, -- int force, int isShrink, int shadows); --static void yaffs_RemoveObjectFromDirectory(yaffs_Object *obj); --static int yaffs_CheckStructures(void); --static int yaffs_DeleteWorker(yaffs_Object *in, yaffs_Tnode *tn, __u32 level, -- int chunkOffset, int *limit); --static int yaffs_DoGenericObjectDeletion(yaffs_Object *in); -- --static yaffs_BlockInfo *yaffs_GetBlockInfo(yaffs_Device *dev, int blockNo); - -+static yaffs_obj_t *yaffs_new_obj(yaffs_dev_t *dev, int number, -+ yaffs_obj_type type); - --static int yaffs_CheckChunkErased(struct yaffs_DeviceStruct *dev, -- int chunkInNAND); - --static int yaffs_UnlinkWorker(yaffs_Object *obj); -+static int yaffs_apply_xattrib_mod(yaffs_obj_t *obj, char *buffer, yaffs_xattr_mod *xmod); - --static int yaffs_TagsMatch(const yaffs_ExtendedTags *tags, int objectId, -- int chunkInObject); -+static void yaffs_remove_obj_from_dir(yaffs_obj_t *obj); -+static int yaffs_check_structures(void); -+static int yaffs_generic_obj_del(yaffs_obj_t *in); -+ -+static int yaffs_check_chunk_erased(struct yaffs_dev_s *dev, -+ int nand_chunk); - --static int yaffs_AllocateChunk(yaffs_Device *dev, int useReserve, -- yaffs_BlockInfo **blockUsedPtr); -+static int yaffs_unlink_worker(yaffs_obj_t *obj); - --static void yaffs_VerifyFreeChunks(yaffs_Device *dev); -+static int yaffs_tags_match(const yaffs_ext_tags *tags, int obj_id, -+ int chunkInObject); - --static void yaffs_CheckObjectDetailsLoaded(yaffs_Object *in); -+static int yaffs_alloc_chunk(yaffs_dev_t *dev, int useReserve, -+ yaffs_block_info_t **blockUsedPtr); - --static void yaffs_VerifyDirectory(yaffs_Object *directory); --#ifdef YAFFS_PARANOID --static int yaffs_CheckFileSanity(yaffs_Object *in); --#else --#define yaffs_CheckFileSanity(in) --#endif -+static void yaffs_check_obj_details_loaded(yaffs_obj_t *in); -+ -+static void yaffs_invalidate_whole_cache(yaffs_obj_t *in); -+static void yaffs_invalidate_chunk_cache(yaffs_obj_t *object, int chunk_id); - --static void yaffs_InvalidateWholeChunkCache(yaffs_Object *in); --static void yaffs_InvalidateChunkCache(yaffs_Object *object, int chunkId); -+static int yaffs_find_chunk_in_file(yaffs_obj_t *in, int inode_chunk, -+ yaffs_ext_tags *tags); - --static void yaffs_InvalidateCheckpoint(yaffs_Device *dev); -+static int yaffs_verify_chunk_written(yaffs_dev_t *dev, -+ int nand_chunk, -+ const __u8 *data, -+ yaffs_ext_tags *tags); - --static int yaffs_FindChunkInFile(yaffs_Object *in, int chunkInInode, -- yaffs_ExtendedTags *tags); - --static __u32 yaffs_GetChunkGroupBase(yaffs_Device *dev, yaffs_Tnode *tn, -- unsigned pos); --static yaffs_Tnode *yaffs_FindLevel0Tnode(yaffs_Device *dev, -- yaffs_FileStructure *fStruct, -- __u32 chunkId); -+static void yaffs_load_name_from_oh(yaffs_dev_t *dev,YCHAR *name, const YCHAR *ohName, int bufferSize); -+static void yaffs_load_oh_from_name(yaffs_dev_t *dev,YCHAR *ohName, const YCHAR *name); - - - /* Function to calculate chunk and offset */ - --static void yaffs_AddrToChunk(yaffs_Device *dev, loff_t addr, int *chunkOut, -+static void yaffs_addr_to_chunk(yaffs_dev_t *dev, loff_t addr, int *chunkOut, - __u32 *offsetOut) - { - int chunk; - __u32 offset; - -- chunk = (__u32)(addr >> dev->chunkShift); -+ chunk = (__u32)(addr >> dev->chunk_shift); - -- if (dev->chunkDiv == 1) { -+ if (dev->chunk_div == 1) { - /* easy power of 2 case */ -- offset = (__u32)(addr & dev->chunkMask); -+ offset = (__u32)(addr & dev->chunk_mask); - } else { - /* Non power-of-2 case */ - - loff_t chunkBase; - -- chunk /= dev->chunkDiv; -+ chunk /= dev->chunk_div; - -- chunkBase = ((loff_t)chunk) * dev->nDataBytesPerChunk; -+ chunkBase = ((loff_t)chunk) * dev->data_bytes_per_chunk; - offset = (__u32)(addr - chunkBase); - } - -@@ -172,7 +160,7 @@ static __u32 ShiftsGE(__u32 x) - - static __u32 Shifts(__u32 x) - { -- int nShifts; -+ __u32 nShifts; - - nShifts = 0; - -@@ -193,49 +181,49 @@ static __u32 Shifts(__u32 x) - * Temporary buffer manipulations. - */ - --static int yaffs_InitialiseTempBuffers(yaffs_Device *dev) -+static int yaffs_init_tmp_buffers(yaffs_dev_t *dev) - { - int i; - __u8 *buf = (__u8 *)1; - -- memset(dev->tempBuffer, 0, sizeof(dev->tempBuffer)); -+ memset(dev->temp_buffer, 0, sizeof(dev->temp_buffer)); - - for (i = 0; buf && i < YAFFS_N_TEMP_BUFFERS; i++) { -- dev->tempBuffer[i].line = 0; /* not in use */ -- dev->tempBuffer[i].buffer = buf = -- YMALLOC_DMA(dev->totalBytesPerChunk); -+ dev->temp_buffer[i].line = 0; /* not in use */ -+ dev->temp_buffer[i].buffer = buf = -+ YMALLOC_DMA(dev->param.total_bytes_per_chunk); - } - - return buf ? YAFFS_OK : YAFFS_FAIL; - } - --__u8 *yaffs_GetTempBuffer(yaffs_Device *dev, int lineNo) -+__u8 *yaffs_get_temp_buffer(yaffs_dev_t *dev, int line_no) - { - int i, j; - -- dev->tempInUse++; -- if (dev->tempInUse > dev->maxTemp) -- dev->maxTemp = dev->tempInUse; -+ dev->temp_in_use++; -+ if (dev->temp_in_use > dev->max_temp) -+ dev->max_temp = dev->temp_in_use; - - for (i = 0; i < YAFFS_N_TEMP_BUFFERS; i++) { -- if (dev->tempBuffer[i].line == 0) { -- dev->tempBuffer[i].line = lineNo; -- if ((i + 1) > dev->maxTemp) { -- dev->maxTemp = i + 1; -+ if (dev->temp_buffer[i].line == 0) { -+ dev->temp_buffer[i].line = line_no; -+ if ((i + 1) > dev->max_temp) { -+ dev->max_temp = i + 1; - for (j = 0; j <= i; j++) -- dev->tempBuffer[j].maxLine = -- dev->tempBuffer[j].line; -+ dev->temp_buffer[j].max_line = -+ dev->temp_buffer[j].line; - } - -- return dev->tempBuffer[i].buffer; -+ return dev->temp_buffer[i].buffer; - } - } - - T(YAFFS_TRACE_BUFFERS, - (TSTR("Out of temp buffers at line %d, other held by lines:"), -- lineNo)); -+ line_no)); - for (i = 0; i < YAFFS_N_TEMP_BUFFERS; i++) -- T(YAFFS_TRACE_BUFFERS, (TSTR(" %d "), dev->tempBuffer[i].line)); -+ T(YAFFS_TRACE_BUFFERS, (TSTR(" %d "), dev->temp_buffer[i].line)); - - T(YAFFS_TRACE_BUFFERS, (TSTR(" " TENDSTR))); - -@@ -244,21 +232,21 @@ __u8 *yaffs_GetTempBuffer(yaffs_Device * - * This is not good. - */ - -- dev->unmanagedTempAllocations++; -- return YMALLOC(dev->nDataBytesPerChunk); -+ dev->unmanaged_buffer_allocs++; -+ return YMALLOC(dev->data_bytes_per_chunk); - - } - --void yaffs_ReleaseTempBuffer(yaffs_Device *dev, __u8 *buffer, -- int lineNo) -+void yaffs_release_temp_buffer(yaffs_dev_t *dev, __u8 *buffer, -+ int line_no) - { - int i; - -- dev->tempInUse--; -+ dev->temp_in_use--; - - for (i = 0; i < YAFFS_N_TEMP_BUFFERS; i++) { -- if (dev->tempBuffer[i].buffer == buffer) { -- dev->tempBuffer[i].line = 0; -+ if (dev->temp_buffer[i].buffer == buffer) { -+ dev->temp_buffer[i].line = 0; - return; - } - } -@@ -267,9 +255,9 @@ void yaffs_ReleaseTempBuffer(yaffs_Devic - /* assume it is an unmanaged one. */ - T(YAFFS_TRACE_BUFFERS, - (TSTR("Releasing unmanaged temp buffer in line %d" TENDSTR), -- lineNo)); -+ line_no)); - YFREE(buffer); -- dev->unmanagedTempDeallocations++; -+ dev->unmanaged_buffer_deallocs++; - } - - } -@@ -277,21 +265,21 @@ void yaffs_ReleaseTempBuffer(yaffs_Devic - /* - * Determine if we have a managed buffer. - */ --int yaffs_IsManagedTempBuffer(yaffs_Device *dev, const __u8 *buffer) -+int yaffs_is_managed_tmp_buffer(yaffs_dev_t *dev, const __u8 *buffer) - { - int i; - - for (i = 0; i < YAFFS_N_TEMP_BUFFERS; i++) { -- if (dev->tempBuffer[i].buffer == buffer) -+ if (dev->temp_buffer[i].buffer == buffer) - return 1; - } - -- for (i = 0; i < dev->nShortOpCaches; i++) { -- if (dev->srCache[i].data == buffer) -+ for (i = 0; i < dev->param.n_caches; i++) { -+ if (dev->cache[i].data == buffer) - return 1; - } - -- if (buffer == dev->checkpointBuffer) -+ if (buffer == dev->checkpt_buffer) - return 1; - - T(YAFFS_TRACE_ALWAYS, -@@ -299,6397 +287,4205 @@ int yaffs_IsManagedTempBuffer(yaffs_Devi - return 0; - } - -- -- - /* -- * Chunk bitmap manipulations -+ * Verification code - */ - --static Y_INLINE __u8 *yaffs_BlockBits(yaffs_Device *dev, int blk) --{ -- if (blk < dev->internalStartBlock || blk > dev->internalEndBlock) { -- T(YAFFS_TRACE_ERROR, -- (TSTR("**>> yaffs: BlockBits block %d is not valid" TENDSTR), -- blk)); -- YBUG(); -- } -- return dev->chunkBits + -- (dev->chunkBitmapStride * (blk - dev->internalStartBlock)); --} - --static Y_INLINE void yaffs_VerifyChunkBitId(yaffs_Device *dev, int blk, int chunk) --{ -- if (blk < dev->internalStartBlock || blk > dev->internalEndBlock || -- chunk < 0 || chunk >= dev->nChunksPerBlock) { -- T(YAFFS_TRACE_ERROR, -- (TSTR("**>> yaffs: Chunk Id (%d:%d) invalid"TENDSTR), -- blk, chunk)); -- YBUG(); -- } --} - --static Y_INLINE void yaffs_ClearChunkBits(yaffs_Device *dev, int blk) --{ -- __u8 *blkBits = yaffs_BlockBits(dev, blk); - -- memset(blkBits, 0, dev->chunkBitmapStride); --} -+/* -+ * Simple hash function. Needs to have a reasonable spread -+ */ - --static Y_INLINE void yaffs_ClearChunkBit(yaffs_Device *dev, int blk, int chunk) -+static Y_INLINE int yaffs_hash_fn(int n) - { -- __u8 *blkBits = yaffs_BlockBits(dev, blk); -- -- yaffs_VerifyChunkBitId(dev, blk, chunk); -- -- blkBits[chunk / 8] &= ~(1 << (chunk & 7)); -+ n = abs(n); -+ return n % YAFFS_NOBJECT_BUCKETS; - } - --static Y_INLINE void yaffs_SetChunkBit(yaffs_Device *dev, int blk, int chunk) --{ -- __u8 *blkBits = yaffs_BlockBits(dev, blk); -- -- yaffs_VerifyChunkBitId(dev, blk, chunk); -- -- blkBits[chunk / 8] |= (1 << (chunk & 7)); --} -+/* -+ * Access functions to useful fake objects. -+ * Note that root might have a presence in NAND if permissions are set. -+ */ - --static Y_INLINE int yaffs_CheckChunkBit(yaffs_Device *dev, int blk, int chunk) -+yaffs_obj_t *yaffs_root(yaffs_dev_t *dev) - { -- __u8 *blkBits = yaffs_BlockBits(dev, blk); -- yaffs_VerifyChunkBitId(dev, blk, chunk); -- -- return (blkBits[chunk / 8] & (1 << (chunk & 7))) ? 1 : 0; -+ return dev->root_dir; - } - --static Y_INLINE int yaffs_StillSomeChunkBits(yaffs_Device *dev, int blk) -+yaffs_obj_t *yaffs_lost_n_found(yaffs_dev_t *dev) - { -- __u8 *blkBits = yaffs_BlockBits(dev, blk); -- int i; -- for (i = 0; i < dev->chunkBitmapStride; i++) { -- if (*blkBits) -- return 1; -- blkBits++; -- } -- return 0; -+ return dev->lost_n_found; - } - --static int yaffs_CountChunkBits(yaffs_Device *dev, int blk) --{ -- __u8 *blkBits = yaffs_BlockBits(dev, blk); -- int i; -- int n = 0; -- for (i = 0; i < dev->chunkBitmapStride; i++) { -- __u8 x = *blkBits; -- while (x) { -- if (x & 1) -- n++; -- x >>= 1; -- } -- -- blkBits++; -- } -- return n; --} - - /* -- * Verification code -+ * Erased NAND checking functions - */ - --static int yaffs_SkipVerification(yaffs_Device *dev) --{ -- return !(yaffs_traceMask & (YAFFS_TRACE_VERIFY | YAFFS_TRACE_VERIFY_FULL)); --} -- --static int yaffs_SkipFullVerification(yaffs_Device *dev) --{ -- return !(yaffs_traceMask & (YAFFS_TRACE_VERIFY_FULL)); --} -- --static int yaffs_SkipNANDVerification(yaffs_Device *dev) -+int yaffs_check_ff(__u8 *buffer, int n_bytes) - { -- return !(yaffs_traceMask & (YAFFS_TRACE_VERIFY_NAND)); -+ /* Horrible, slow implementation */ -+ while (n_bytes--) { -+ if (*buffer != 0xFF) -+ return 0; -+ buffer++; -+ } -+ return 1; - } - --static const char *blockStateName[] = { --"Unknown", --"Needs scanning", --"Scanning", --"Empty", --"Allocating", --"Full", --"Dirty", --"Checkpoint", --"Collecting", --"Dead" --}; -- --static void yaffs_VerifyBlock(yaffs_Device *dev, yaffs_BlockInfo *bi, int n) -+static int yaffs_check_chunk_erased(struct yaffs_dev_s *dev, -+ int nand_chunk) - { -- int actuallyUsed; -- int inUse; -+ int retval = YAFFS_OK; -+ __u8 *data = yaffs_get_temp_buffer(dev, __LINE__); -+ yaffs_ext_tags tags; -+ int result; - -- if (yaffs_SkipVerification(dev)) -- return; -+ result = yaffs_rd_chunk_tags_nand(dev, nand_chunk, data, &tags); - -- /* Report illegal runtime states */ -- if (bi->blockState >= YAFFS_NUMBER_OF_BLOCK_STATES) -- T(YAFFS_TRACE_VERIFY, (TSTR("Block %d has undefined state %d"TENDSTR), n, bi->blockState)); -+ if (tags.ecc_result > YAFFS_ECC_RESULT_NO_ERROR) -+ retval = YAFFS_FAIL; - -- switch (bi->blockState) { -- case YAFFS_BLOCK_STATE_UNKNOWN: -- case YAFFS_BLOCK_STATE_SCANNING: -- case YAFFS_BLOCK_STATE_NEEDS_SCANNING: -- T(YAFFS_TRACE_VERIFY, (TSTR("Block %d has bad run-state %s"TENDSTR), -- n, blockStateName[bi->blockState])); -+ if (!yaffs_check_ff(data, dev->data_bytes_per_chunk) || tags.chunk_used) { -+ T(YAFFS_TRACE_NANDACCESS, -+ (TSTR("Chunk %d not erased" TENDSTR), nand_chunk)); -+ retval = YAFFS_FAIL; - } - -- /* Check pages in use and soft deletions are legal */ -- -- actuallyUsed = bi->pagesInUse - bi->softDeletions; -- -- if (bi->pagesInUse < 0 || bi->pagesInUse > dev->nChunksPerBlock || -- bi->softDeletions < 0 || bi->softDeletions > dev->nChunksPerBlock || -- actuallyUsed < 0 || actuallyUsed > dev->nChunksPerBlock) -- T(YAFFS_TRACE_VERIFY, (TSTR("Block %d has illegal values pagesInUsed %d softDeletions %d"TENDSTR), -- n, bi->pagesInUse, bi->softDeletions)); -- -+ yaffs_release_temp_buffer(dev, data, __LINE__); - -- /* Check chunk bitmap legal */ -- inUse = yaffs_CountChunkBits(dev, n); -- if (inUse != bi->pagesInUse) -- T(YAFFS_TRACE_VERIFY, (TSTR("Block %d has inconsistent values pagesInUse %d counted chunk bits %d"TENDSTR), -- n, bi->pagesInUse, inUse)); -+ return retval; - -- /* Check that the sequence number is valid. -- * Ten million is legal, but is very unlikely -- */ -- if (dev->isYaffs2 && -- (bi->blockState == YAFFS_BLOCK_STATE_ALLOCATING || bi->blockState == YAFFS_BLOCK_STATE_FULL) && -- (bi->sequenceNumber < YAFFS_LOWEST_SEQUENCE_NUMBER || bi->sequenceNumber > 10000000)) -- T(YAFFS_TRACE_VERIFY, (TSTR("Block %d has suspect sequence number of %d"TENDSTR), -- n, bi->sequenceNumber)); - } - --static void yaffs_VerifyCollectedBlock(yaffs_Device *dev, yaffs_BlockInfo *bi, -- int n) -+ -+static int yaffs_verify_chunk_written(yaffs_dev_t *dev, -+ int nand_chunk, -+ const __u8 *data, -+ yaffs_ext_tags *tags) - { -- yaffs_VerifyBlock(dev, bi, n); -+ int retval = YAFFS_OK; -+ yaffs_ext_tags tempTags; -+ __u8 *buffer = yaffs_get_temp_buffer(dev,__LINE__); -+ int result; -+ -+ result = yaffs_rd_chunk_tags_nand(dev,nand_chunk,buffer,&tempTags); -+ if(memcmp(buffer,data,dev->data_bytes_per_chunk) || -+ tempTags.obj_id != tags->obj_id || -+ tempTags.chunk_id != tags->chunk_id || -+ tempTags.n_bytes != tags->n_bytes) -+ retval = YAFFS_FAIL; - -- /* After collection the block should be in the erased state */ -- /* This will need to change if we do partial gc */ -+ yaffs_release_temp_buffer(dev, buffer, __LINE__); - -- if (bi->blockState != YAFFS_BLOCK_STATE_COLLECTING && -- bi->blockState != YAFFS_BLOCK_STATE_EMPTY) { -- T(YAFFS_TRACE_ERROR, (TSTR("Block %d is in state %d after gc, should be erased"TENDSTR), -- n, bi->blockState)); -- } -+ return retval; - } - --static void yaffs_VerifyBlocks(yaffs_Device *dev) -+static int yaffs_write_new_chunk(struct yaffs_dev_s *dev, -+ const __u8 *data, -+ yaffs_ext_tags *tags, -+ int useReserve) - { -- int i; -- int nBlocksPerState[YAFFS_NUMBER_OF_BLOCK_STATES]; -- int nIllegalBlockStates = 0; -- -- if (yaffs_SkipVerification(dev)) -- return; -- -- memset(nBlocksPerState, 0, sizeof(nBlocksPerState)); -- -- for (i = dev->internalStartBlock; i <= dev->internalEndBlock; i++) { -- yaffs_BlockInfo *bi = yaffs_GetBlockInfo(dev, i); -- yaffs_VerifyBlock(dev, bi, i); -- -- if (bi->blockState < YAFFS_NUMBER_OF_BLOCK_STATES) -- nBlocksPerState[bi->blockState]++; -- else -- nIllegalBlockStates++; -- } -+ int attempts = 0; -+ int writeOk = 0; -+ int chunk; - -- T(YAFFS_TRACE_VERIFY, (TSTR(""TENDSTR))); -- T(YAFFS_TRACE_VERIFY, (TSTR("Block summary"TENDSTR))); -+ yaffs2_checkpt_invalidate(dev); - -- T(YAFFS_TRACE_VERIFY, (TSTR("%d blocks have illegal states"TENDSTR), nIllegalBlockStates)); -- if (nBlocksPerState[YAFFS_BLOCK_STATE_ALLOCATING] > 1) -- T(YAFFS_TRACE_VERIFY, (TSTR("Too many allocating blocks"TENDSTR))); -+ do { -+ yaffs_block_info_t *bi = 0; -+ int erasedOk = 0; - -- for (i = 0; i < YAFFS_NUMBER_OF_BLOCK_STATES; i++) -- T(YAFFS_TRACE_VERIFY, -- (TSTR("%s %d blocks"TENDSTR), -- blockStateName[i], nBlocksPerState[i])); -+ chunk = yaffs_alloc_chunk(dev, useReserve, &bi); -+ if (chunk < 0) { -+ /* no space */ -+ break; -+ } - -- if (dev->blocksInCheckpoint != nBlocksPerState[YAFFS_BLOCK_STATE_CHECKPOINT]) -- T(YAFFS_TRACE_VERIFY, -- (TSTR("Checkpoint block count wrong dev %d count %d"TENDSTR), -- dev->blocksInCheckpoint, nBlocksPerState[YAFFS_BLOCK_STATE_CHECKPOINT])); -+ /* First check this chunk is erased, if it needs -+ * checking. The checking policy (unless forced -+ * always on) is as follows: -+ * -+ * Check the first page we try to write in a block. -+ * If the check passes then we don't need to check any -+ * more. If the check fails, we check again... -+ * If the block has been erased, we don't need to check. -+ * -+ * However, if the block has been prioritised for gc, -+ * then we think there might be something odd about -+ * this block and stop using it. -+ * -+ * Rationale: We should only ever see chunks that have -+ * not been erased if there was a partially written -+ * chunk due to power loss. This checking policy should -+ * catch that case with very few checks and thus save a -+ * lot of checks that are most likely not needed. -+ * -+ * Mods to the above -+ * If an erase check fails or the write fails we skip the -+ * rest of the block. -+ */ - -- if (dev->nErasedBlocks != nBlocksPerState[YAFFS_BLOCK_STATE_EMPTY]) -- T(YAFFS_TRACE_VERIFY, -- (TSTR("Erased block count wrong dev %d count %d"TENDSTR), -- dev->nErasedBlocks, nBlocksPerState[YAFFS_BLOCK_STATE_EMPTY])); -+ /* let's give it a try */ -+ attempts++; - -- if (nBlocksPerState[YAFFS_BLOCK_STATE_COLLECTING] > 1) -- T(YAFFS_TRACE_VERIFY, -- (TSTR("Too many collecting blocks %d (max is 1)"TENDSTR), -- nBlocksPerState[YAFFS_BLOCK_STATE_COLLECTING])); -+ if(dev->param.always_check_erased) -+ bi->skip_erased_check = 0; - -- T(YAFFS_TRACE_VERIFY, (TSTR(""TENDSTR))); -+ if (!bi->skip_erased_check) { -+ erasedOk = yaffs_check_chunk_erased(dev, chunk); -+ if (erasedOk != YAFFS_OK) { -+ T(YAFFS_TRACE_ERROR, -+ (TSTR("**>> yaffs chunk %d was not erased" -+ TENDSTR), chunk)); - --} -+ /* If not erased, delete this one, -+ * skip rest of block and -+ * try another chunk */ -+ yaffs_chunk_del(dev,chunk,1,__LINE__); -+ yaffs_skip_rest_of_block(dev); -+ continue; -+ } -+ } - --/* -- * Verify the object header. oh must be valid, but obj and tags may be NULL in which -- * case those tests will not be performed. -- */ --static void yaffs_VerifyObjectHeader(yaffs_Object *obj, yaffs_ObjectHeader *oh, yaffs_ExtendedTags *tags, int parentCheck) --{ -- if (obj && yaffs_SkipVerification(obj->myDev)) -- return; -+ writeOk = yaffs_wr_chunk_tags_nand(dev, chunk, -+ data, tags); - -- if (!(tags && obj && oh)) { -- T(YAFFS_TRACE_VERIFY, -- (TSTR("Verifying object header tags %x obj %x oh %x"TENDSTR), -- (__u32)tags, (__u32)obj, (__u32)oh)); -- return; -- } -+ if(!bi->skip_erased_check) -+ writeOk = yaffs_verify_chunk_written(dev, chunk, data, tags); - -- if (oh->type <= YAFFS_OBJECT_TYPE_UNKNOWN || -- oh->type > YAFFS_OBJECT_TYPE_MAX) -- T(YAFFS_TRACE_VERIFY, -- (TSTR("Obj %d header type is illegal value 0x%x"TENDSTR), -- tags->objectId, oh->type)); -+ if (writeOk != YAFFS_OK) { -+ /* Clean up aborted write, skip to next block and -+ * try another chunk */ -+ yaffs_handle_chunk_wr_error(dev, chunk, erasedOk); -+ continue; -+ } - -- if (tags->objectId != obj->objectId) -- T(YAFFS_TRACE_VERIFY, -- (TSTR("Obj %d header mismatch objectId %d"TENDSTR), -- tags->objectId, obj->objectId)); -+ bi->skip_erased_check = 1; - -+ /* Copy the data into the robustification buffer */ -+ yaffs_handle_chunk_wr_ok(dev, chunk, data, tags); - -- /* -- * Check that the object's parent ids match if parentCheck requested. -- * -- * Tests do not apply to the root object. -- */ -+ } while (writeOk != YAFFS_OK && -+ (yaffs_wr_attempts <= 0 || attempts <= yaffs_wr_attempts)); - -- if (parentCheck && tags->objectId > 1 && !obj->parent) -- T(YAFFS_TRACE_VERIFY, -- (TSTR("Obj %d header mismatch parentId %d obj->parent is NULL"TENDSTR), -- tags->objectId, oh->parentObjectId)); -+ if (!writeOk) -+ chunk = -1; - -- if (parentCheck && obj->parent && -- oh->parentObjectId != obj->parent->objectId && -- (oh->parentObjectId != YAFFS_OBJECTID_UNLINKED || -- obj->parent->objectId != YAFFS_OBJECTID_DELETED)) -- T(YAFFS_TRACE_VERIFY, -- (TSTR("Obj %d header mismatch parentId %d parentObjectId %d"TENDSTR), -- tags->objectId, oh->parentObjectId, obj->parent->objectId)); -+ if (attempts > 1) { -+ T(YAFFS_TRACE_ERROR, -+ (TSTR("**>> yaffs write required %d attempts" TENDSTR), -+ attempts)); - -- if (tags->objectId > 1 && oh->name[0] == 0) /* Null name */ -- T(YAFFS_TRACE_VERIFY, -- (TSTR("Obj %d header name is NULL"TENDSTR), -- obj->objectId)); -+ dev->n_retired_writes += (attempts - 1); -+ } - -- if (tags->objectId > 1 && ((__u8)(oh->name[0])) == 0xff) /* Trashed name */ -- T(YAFFS_TRACE_VERIFY, -- (TSTR("Obj %d header name is 0xFF"TENDSTR), -- obj->objectId)); -+ return chunk; - } - - -+ -+/* -+ * Block retiring for handling a broken block. -+ */ - --static int yaffs_VerifyTnodeWorker(yaffs_Object *obj, yaffs_Tnode *tn, -- __u32 level, int chunkOffset) -+static void yaffs_retire_block(yaffs_dev_t *dev, int flash_block) - { -- int i; -- yaffs_Device *dev = obj->myDev; -- int ok = 1; -+ yaffs_block_info_t *bi = yaffs_get_block_info(dev, flash_block); - -- if (tn) { -- if (level > 0) { -+ yaffs2_checkpt_invalidate(dev); -+ -+ yaffs2_clear_oldest_dirty_seq(dev,bi); - -- for (i = 0; i < YAFFS_NTNODES_INTERNAL && ok; i++) { -- if (tn->internal[i]) { -- ok = yaffs_VerifyTnodeWorker(obj, -- tn->internal[i], -- level - 1, -- (chunkOffset<objectId; -+ if (yaffs_mark_bad(dev, flash_block) != YAFFS_OK) { -+ if (yaffs_erase_block(dev, flash_block) != YAFFS_OK) { -+ T(YAFFS_TRACE_ALWAYS, (TSTR( -+ "yaffs: Failed to mark bad and erase block %d" -+ TENDSTR), flash_block)); -+ } else { -+ yaffs_ext_tags tags; -+ int chunk_id = flash_block * dev->param.chunks_per_block; - -- chunkOffset <<= YAFFS_TNODES_LEVEL0_BITS; -+ __u8 *buffer = yaffs_get_temp_buffer(dev, __LINE__); - -- for (i = 0; i < YAFFS_NTNODES_LEVEL0; i++) { -- __u32 theChunk = yaffs_GetChunkGroupBase(dev, tn, i); -+ memset(buffer, 0xff, dev->data_bytes_per_chunk); -+ yaffs_init_tags(&tags); -+ tags.seq_number = YAFFS_SEQUENCE_BAD_BLOCK; -+ if (dev->param.write_chunk_tags_fn(dev, chunk_id - -+ dev->chunk_offset, buffer, &tags) != YAFFS_OK) -+ T(YAFFS_TRACE_ALWAYS, (TSTR("yaffs: Failed to " -+ TCONT("write bad block marker to block %d") -+ TENDSTR), flash_block)); - -- if (theChunk > 0) { -- /* T(~0,(TSTR("verifying (%d:%d) %d"TENDSTR),tags.objectId,tags.chunkId,theChunk)); */ -- yaffs_ReadChunkWithTagsFromNAND(dev, theChunk, NULL, &tags); -- if (tags.objectId != objectId || tags.chunkId != chunkOffset) { -- T(~0, (TSTR("Object %d chunkId %d NAND mismatch chunk %d tags (%d:%d)"TENDSTR), -- objectId, chunkOffset, theChunk, -- tags.objectId, tags.chunkId)); -- } -- } -- chunkOffset++; -- } -+ yaffs_release_temp_buffer(dev, buffer, __LINE__); - } - } - -- return ok; -+ bi->block_state = YAFFS_BLOCK_STATE_DEAD; -+ bi->gc_prioritise = 0; -+ bi->needs_retiring = 0; - -+ dev->n_retired_blocks++; - } - -+/* -+ * Functions for robustisizing TODO -+ * -+ */ - --static void yaffs_VerifyFile(yaffs_Object *obj) -+static void yaffs_handle_chunk_wr_ok(yaffs_dev_t *dev, int nand_chunk, -+ const __u8 *data, -+ const yaffs_ext_tags *tags) - { -- int requiredTallness; -- int actualTallness; -- __u32 lastChunk; -- __u32 x; -- __u32 i; -- yaffs_Device *dev; -- yaffs_ExtendedTags tags; -- yaffs_Tnode *tn; -- __u32 objectId; -+ dev=dev; -+ nand_chunk=nand_chunk; -+ data=data; -+ tags=tags; -+} - -- if (!obj) -- return; -+static void yaffs_handle_chunk_update(yaffs_dev_t *dev, int nand_chunk, -+ const yaffs_ext_tags *tags) -+{ -+ dev=dev; -+ nand_chunk=nand_chunk; -+ tags=tags; -+} - -- if (yaffs_SkipVerification(obj->myDev)) -- return; -+void yaffs_handle_chunk_error(yaffs_dev_t *dev, yaffs_block_info_t *bi) -+{ -+ if (!bi->gc_prioritise) { -+ bi->gc_prioritise = 1; -+ dev->has_pending_prioritised_gc = 1; -+ bi->chunk_error_strikes++; - -- dev = obj->myDev; -- objectId = obj->objectId; -+ if (bi->chunk_error_strikes > 3) { -+ bi->needs_retiring = 1; /* Too many stikes, so retire this */ -+ T(YAFFS_TRACE_ALWAYS, (TSTR("yaffs: Block struck out" TENDSTR))); - -- /* Check file size is consistent with tnode depth */ -- lastChunk = obj->variant.fileVariant.fileSize / dev->nDataBytesPerChunk + 1; -- x = lastChunk >> YAFFS_TNODES_LEVEL0_BITS; -- requiredTallness = 0; -- while (x > 0) { -- x >>= YAFFS_TNODES_INTERNAL_BITS; -- requiredTallness++; -+ } - } -+} - -- actualTallness = obj->variant.fileVariant.topLevel; -+static void yaffs_handle_chunk_wr_error(yaffs_dev_t *dev, int nand_chunk, -+ int erasedOk) -+{ -+ int flash_block = nand_chunk / dev->param.chunks_per_block; -+ yaffs_block_info_t *bi = yaffs_get_block_info(dev, flash_block); - -- if (requiredTallness > actualTallness) -- T(YAFFS_TRACE_VERIFY, -- (TSTR("Obj %d had tnode tallness %d, needs to be %d"TENDSTR), -- obj->objectId, actualTallness, requiredTallness)); -+ yaffs_handle_chunk_error(dev, bi); - -+ if (erasedOk) { -+ /* Was an actual write failure, so mark the block for retirement */ -+ bi->needs_retiring = 1; -+ T(YAFFS_TRACE_ERROR | YAFFS_TRACE_BAD_BLOCKS, -+ (TSTR("**>> Block %d needs retiring" TENDSTR), flash_block)); -+ } - -- /* Check that the chunks in the tnode tree are all correct. -- * We do this by scanning through the tnode tree and -- * checking the tags for every chunk match. -- */ -+ /* Delete the chunk */ -+ yaffs_chunk_del(dev, nand_chunk, 1, __LINE__); -+ yaffs_skip_rest_of_block(dev); -+} - -- if (yaffs_SkipNANDVerification(dev)) -- return; - -- for (i = 1; i <= lastChunk; i++) { -- tn = yaffs_FindLevel0Tnode(dev, &obj->variant.fileVariant, i); -+/*---------------- Name handling functions ------------*/ - -- if (tn) { -- __u32 theChunk = yaffs_GetChunkGroupBase(dev, tn, i); -- if (theChunk > 0) { -- /* T(~0,(TSTR("verifying (%d:%d) %d"TENDSTR),objectId,i,theChunk)); */ -- yaffs_ReadChunkWithTagsFromNAND(dev, theChunk, NULL, &tags); -- if (tags.objectId != objectId || tags.chunkId != i) { -- T(~0, (TSTR("Object %d chunkId %d NAND mismatch chunk %d tags (%d:%d)"TENDSTR), -- objectId, i, theChunk, -- tags.objectId, tags.chunkId)); -- } -- } -+static __u16 yaffs_calc_name_sum(const YCHAR *name) -+{ -+ __u16 sum = 0; -+ __u16 i = 1; -+ -+ const YUCHAR *bname = (const YUCHAR *) name; -+ if (bname) { -+ while ((*bname) && (i < (YAFFS_MAX_NAME_LENGTH/2))) { -+ -+#ifdef CONFIG_YAFFS_CASE_INSENSITIVE -+ sum += yaffs_toupper(*bname) * i; -+#else -+ sum += (*bname) * i; -+#endif -+ i++; -+ bname++; - } - } -+ return sum; - } - -- --static void yaffs_VerifyHardLink(yaffs_Object *obj) -+void yaffs_set_obj_name(yaffs_obj_t *obj, const YCHAR *name) - { -- if (obj && yaffs_SkipVerification(obj->myDev)) -- return; -- -- /* Verify sane equivalent object */ -+#ifdef CONFIG_YAFFS_SHORT_NAMES_IN_RAM -+ memset(obj->short_name, 0, sizeof(YCHAR) * (YAFFS_SHORT_NAME_LENGTH+1)); -+ if (name && yaffs_strnlen(name,YAFFS_SHORT_NAME_LENGTH+1) <= YAFFS_SHORT_NAME_LENGTH) -+ yaffs_strcpy(obj->short_name, name); -+ else -+ obj->short_name[0] = _Y('\0'); -+#endif -+ obj->sum = yaffs_calc_name_sum(name); - } - --static void yaffs_VerifySymlink(yaffs_Object *obj) -+void yaffs_set_obj_name_from_oh(yaffs_obj_t *obj, const yaffs_obj_header *oh) - { -- if (obj && yaffs_SkipVerification(obj->myDev)) -- return; -- -- /* Verify symlink string */ -+#ifdef CONFIG_YAFFS_AUTO_UNICODE -+ YCHAR tmpName[YAFFS_MAX_NAME_LENGTH+1]; -+ memset(tmpName,0,sizeof(tmpName)); -+ yaffs_load_name_from_oh(obj->my_dev,tmpName,oh->name,YAFFS_MAX_NAME_LENGTH+1); -+ yaffs_set_obj_name(obj,tmpName); -+#else -+ yaffs_set_obj_name(obj,oh->name); -+#endif - } - --static void yaffs_VerifySpecial(yaffs_Object *obj) --{ -- if (obj && yaffs_SkipVerification(obj->myDev)) -- return; --} -- --static void yaffs_VerifyObject(yaffs_Object *obj) --{ -- yaffs_Device *dev; -- -- __u32 chunkMin; -- __u32 chunkMax; -- -- __u32 chunkIdOk; -- __u32 chunkInRange; -- __u32 chunkShouldNotBeDeleted; -- __u32 chunkValid; -- -- if (!obj) -- return; -- -- if (obj->beingCreated) -- return; -+/*-------------------- TNODES ------------------- - -- dev = obj->myDev; -+ * List of spare tnodes -+ * The list is hooked together using the first pointer -+ * in the tnode. -+ */ - -- if (yaffs_SkipVerification(dev)) -- return; - -- /* Check sane object header chunk */ -+yaffs_tnode_t *yaffs_get_tnode(yaffs_dev_t *dev) -+{ -+ yaffs_tnode_t *tn = yaffs_alloc_raw_tnode(dev); -+ if (tn){ -+ memset(tn, 0, dev->tnode_size); -+ dev->n_tnodes++; -+ } - -- chunkMin = dev->internalStartBlock * dev->nChunksPerBlock; -- chunkMax = (dev->internalEndBlock+1) * dev->nChunksPerBlock - 1; -+ dev->checkpoint_blocks_required = 0; /* force recalculation*/ - -- chunkInRange = (((unsigned)(obj->hdrChunk)) >= chunkMin && ((unsigned)(obj->hdrChunk)) <= chunkMax); -- chunkIdOk = chunkInRange || obj->hdrChunk == 0; -- chunkValid = chunkInRange && -- yaffs_CheckChunkBit(dev, -- obj->hdrChunk / dev->nChunksPerBlock, -- obj->hdrChunk % dev->nChunksPerBlock); -- chunkShouldNotBeDeleted = chunkInRange && !chunkValid; -+ return tn; -+} - -- if (!obj->fake && -- (!chunkIdOk || chunkShouldNotBeDeleted)) { -- T(YAFFS_TRACE_VERIFY, -- (TSTR("Obj %d has chunkId %d %s %s"TENDSTR), -- obj->objectId, obj->hdrChunk, -- chunkIdOk ? "" : ",out of range", -- chunkShouldNotBeDeleted ? ",marked as deleted" : "")); -- } -+/* FreeTnode frees up a tnode and puts it back on the free list */ -+static void yaffs_free_tnode(yaffs_dev_t *dev, yaffs_tnode_t *tn) -+{ -+ yaffs_free_raw_tnode(dev,tn); -+ dev->n_tnodes--; -+ dev->checkpoint_blocks_required = 0; /* force recalculation*/ -+} - -- if (chunkValid && !yaffs_SkipNANDVerification(dev)) { -- yaffs_ExtendedTags tags; -- yaffs_ObjectHeader *oh; -- __u8 *buffer = yaffs_GetTempBuffer(dev, __LINE__); -+static void yaffs_deinit_tnodes_and_objs(yaffs_dev_t *dev) -+{ -+ yaffs_deinit_raw_tnodes_and_objs(dev); -+ dev->n_obj = 0; -+ dev->n_tnodes = 0; -+} - -- oh = (yaffs_ObjectHeader *)buffer; - -- yaffs_ReadChunkWithTagsFromNAND(dev, obj->hdrChunk, buffer, -- &tags); -+void yaffs_load_tnode_0(yaffs_dev_t *dev, yaffs_tnode_t *tn, unsigned pos, -+ unsigned val) -+{ -+ __u32 *map = (__u32 *)tn; -+ __u32 bitInMap; -+ __u32 bitInWord; -+ __u32 wordInMap; -+ __u32 mask; - -- yaffs_VerifyObjectHeader(obj, oh, &tags, 1); -+ pos &= YAFFS_TNODES_LEVEL0_MASK; -+ val >>= dev->chunk_grp_bits; - -- yaffs_ReleaseTempBuffer(dev, buffer, __LINE__); -- } -+ bitInMap = pos * dev->tnode_width; -+ wordInMap = bitInMap / 32; -+ bitInWord = bitInMap & (32 - 1); - -- /* Verify it has a parent */ -- if (obj && !obj->fake && -- (!obj->parent || obj->parent->myDev != dev)) { -- T(YAFFS_TRACE_VERIFY, -- (TSTR("Obj %d has parent pointer %p which does not look like an object"TENDSTR), -- obj->objectId, obj->parent)); -- } -+ mask = dev->tnode_mask << bitInWord; - -- /* Verify parent is a directory */ -- if (obj->parent && obj->parent->variantType != YAFFS_OBJECT_TYPE_DIRECTORY) { -- T(YAFFS_TRACE_VERIFY, -- (TSTR("Obj %d's parent is not a directory (type %d)"TENDSTR), -- obj->objectId, obj->parent->variantType)); -- } -+ map[wordInMap] &= ~mask; -+ map[wordInMap] |= (mask & (val << bitInWord)); - -- switch (obj->variantType) { -- case YAFFS_OBJECT_TYPE_FILE: -- yaffs_VerifyFile(obj); -- break; -- case YAFFS_OBJECT_TYPE_SYMLINK: -- yaffs_VerifySymlink(obj); -- break; -- case YAFFS_OBJECT_TYPE_DIRECTORY: -- yaffs_VerifyDirectory(obj); -- break; -- case YAFFS_OBJECT_TYPE_HARDLINK: -- yaffs_VerifyHardLink(obj); -- break; -- case YAFFS_OBJECT_TYPE_SPECIAL: -- yaffs_VerifySpecial(obj); -- break; -- case YAFFS_OBJECT_TYPE_UNKNOWN: -- default: -- T(YAFFS_TRACE_VERIFY, -- (TSTR("Obj %d has illegaltype %d"TENDSTR), -- obj->objectId, obj->variantType)); -- break; -+ if (dev->tnode_width > (32 - bitInWord)) { -+ bitInWord = (32 - bitInWord); -+ wordInMap++;; -+ mask = dev->tnode_mask >> (/*dev->tnode_width -*/ bitInWord); -+ map[wordInMap] &= ~mask; -+ map[wordInMap] |= (mask & (val >> bitInWord)); - } - } - --static void yaffs_VerifyObjects(yaffs_Device *dev) -+__u32 yaffs_get_group_base(yaffs_dev_t *dev, yaffs_tnode_t *tn, -+ unsigned pos) - { -- yaffs_Object *obj; -- int i; -- struct ylist_head *lh; -+ __u32 *map = (__u32 *)tn; -+ __u32 bitInMap; -+ __u32 bitInWord; -+ __u32 wordInMap; -+ __u32 val; - -- if (yaffs_SkipVerification(dev)) -- return; -+ pos &= YAFFS_TNODES_LEVEL0_MASK; - -- /* Iterate through the objects in each hash entry */ -+ bitInMap = pos * dev->tnode_width; -+ wordInMap = bitInMap / 32; -+ bitInWord = bitInMap & (32 - 1); - -- for (i = 0; i < YAFFS_NOBJECT_BUCKETS; i++) { -- ylist_for_each(lh, &dev->objectBucket[i].list) { -- if (lh) { -- obj = ylist_entry(lh, yaffs_Object, hashLink); -- yaffs_VerifyObject(obj); -- } -- } -- } --} -+ val = map[wordInMap] >> bitInWord; - -+ if (dev->tnode_width > (32 - bitInWord)) { -+ bitInWord = (32 - bitInWord); -+ wordInMap++;; -+ val |= (map[wordInMap] << bitInWord); -+ } - --/* -- * Simple hash function. Needs to have a reasonable spread -- */ -+ val &= dev->tnode_mask; -+ val <<= dev->chunk_grp_bits; - --static Y_INLINE int yaffs_HashFunction(int n) --{ -- n = abs(n); -- return n % YAFFS_NOBJECT_BUCKETS; -+ return val; - } - --/* -- * Access functions to useful fake objects. -- * Note that root might have a presence in NAND if permissions are set. -+/* ------------------- End of individual tnode manipulation -----------------*/ -+ -+/* ---------Functions to manipulate the look-up tree (made up of tnodes) ------ -+ * The look up tree is represented by the top tnode and the number of top_level -+ * in the tree. 0 means only the level 0 tnode is in the tree. - */ - --yaffs_Object *yaffs_Root(yaffs_Device *dev) -+/* FindLevel0Tnode finds the level 0 tnode, if one exists. */ -+yaffs_tnode_t *yaffs_find_tnode_0(yaffs_dev_t *dev, -+ yaffs_file_s *file_struct, -+ __u32 chunk_id) - { -- return dev->rootDir; --} -+ yaffs_tnode_t *tn = file_struct->top; -+ __u32 i; -+ int requiredTallness; -+ int level = file_struct->top_level; - --yaffs_Object *yaffs_LostNFound(yaffs_Device *dev) --{ -- return dev->lostNFoundDir; --} -+ dev=dev; - -+ /* Check sane level and chunk Id */ -+ if (level < 0 || level > YAFFS_TNODES_MAX_LEVEL) -+ return NULL; - --/* -- * Erased NAND checking functions -- */ -+ if (chunk_id > YAFFS_MAX_CHUNK_ID) -+ return NULL; - --int yaffs_CheckFF(__u8 *buffer, int nBytes) --{ -- /* Horrible, slow implementation */ -- while (nBytes--) { -- if (*buffer != 0xFF) -- return 0; -- buffer++; -+ /* First check we're tall enough (ie enough top_level) */ -+ -+ i = chunk_id >> YAFFS_TNODES_LEVEL0_BITS; -+ requiredTallness = 0; -+ while (i) { -+ i >>= YAFFS_TNODES_INTERNAL_BITS; -+ requiredTallness++; - } -- return 1; --} - --static int yaffs_CheckChunkErased(struct yaffs_DeviceStruct *dev, -- int chunkInNAND) --{ -- int retval = YAFFS_OK; -- __u8 *data = yaffs_GetTempBuffer(dev, __LINE__); -- yaffs_ExtendedTags tags; -- int result; -+ if (requiredTallness > file_struct->top_level) -+ return NULL; /* Not tall enough, so we can't find it */ -+ -+ /* Traverse down to level 0 */ -+ while (level > 0 && tn) { -+ tn = tn->internal[(chunk_id >> -+ (YAFFS_TNODES_LEVEL0_BITS + -+ (level - 1) * -+ YAFFS_TNODES_INTERNAL_BITS)) & -+ YAFFS_TNODES_INTERNAL_MASK]; -+ level--; -+ } - -- result = yaffs_ReadChunkWithTagsFromNAND(dev, chunkInNAND, data, &tags); -+ return tn; -+} - -- if (tags.eccResult > YAFFS_ECC_RESULT_NO_ERROR) -- retval = YAFFS_FAIL; -+/* AddOrFindLevel0Tnode finds the level 0 tnode if it exists, otherwise first expands the tree. -+ * This happens in two steps: -+ * 1. If the tree isn't tall enough, then make it taller. -+ * 2. Scan down the tree towards the level 0 tnode adding tnodes if required. -+ * -+ * Used when modifying the tree. -+ * -+ * If the tn argument is NULL, then a fresh tnode will be added otherwise the specified tn will -+ * be plugged into the ttree. -+ */ - -- if (!yaffs_CheckFF(data, dev->nDataBytesPerChunk) || tags.chunkUsed) { -- T(YAFFS_TRACE_NANDACCESS, -- (TSTR("Chunk %d not erased" TENDSTR), chunkInNAND)); -- retval = YAFFS_FAIL; -- } -+yaffs_tnode_t *yaffs_add_find_tnode_0(yaffs_dev_t *dev, -+ yaffs_file_s *file_struct, -+ __u32 chunk_id, -+ yaffs_tnode_t *passed_tn) -+{ -+ int requiredTallness; -+ int i; -+ int l; -+ yaffs_tnode_t *tn; - -- yaffs_ReleaseTempBuffer(dev, data, __LINE__); -+ __u32 x; - -- return retval; - --} -+ /* Check sane level and page Id */ -+ if (file_struct->top_level < 0 || file_struct->top_level > YAFFS_TNODES_MAX_LEVEL) -+ return NULL; - --static int yaffs_WriteNewChunkWithTagsToNAND(struct yaffs_DeviceStruct *dev, -- const __u8 *data, -- yaffs_ExtendedTags *tags, -- int useReserve) --{ -- int attempts = 0; -- int writeOk = 0; -- int chunk; -+ if (chunk_id > YAFFS_MAX_CHUNK_ID) -+ return NULL; - -- yaffs_InvalidateCheckpoint(dev); -+ /* First check we're tall enough (ie enough top_level) */ - -- do { -- yaffs_BlockInfo *bi = 0; -- int erasedOk = 0; -+ x = chunk_id >> YAFFS_TNODES_LEVEL0_BITS; -+ requiredTallness = 0; -+ while (x) { -+ x >>= YAFFS_TNODES_INTERNAL_BITS; -+ requiredTallness++; -+ } - -- chunk = yaffs_AllocateChunk(dev, useReserve, &bi); -- if (chunk < 0) { -- /* no space */ -- break; -- } - -- /* First check this chunk is erased, if it needs -- * checking. The checking policy (unless forced -- * always on) is as follows: -- * -- * Check the first page we try to write in a block. -- * If the check passes then we don't need to check any -- * more. If the check fails, we check again... -- * If the block has been erased, we don't need to check. -- * -- * However, if the block has been prioritised for gc, -- * then we think there might be something odd about -- * this block and stop using it. -- * -- * Rationale: We should only ever see chunks that have -- * not been erased if there was a partially written -- * chunk due to power loss. This checking policy should -- * catch that case with very few checks and thus save a -- * lot of checks that are most likely not needed. -- */ -- if (bi->gcPrioritise) { -- yaffs_DeleteChunk(dev, chunk, 1, __LINE__); -- /* try another chunk */ -- continue; -- } -+ if (requiredTallness > file_struct->top_level) { -+ /* Not tall enough, gotta make the tree taller */ -+ for (i = file_struct->top_level; i < requiredTallness; i++) { - -- /* let's give it a try */ -- attempts++; -+ tn = yaffs_get_tnode(dev); - --#ifdef CONFIG_YAFFS_ALWAYS_CHECK_CHUNK_ERASED -- bi->skipErasedCheck = 0; --#endif -- if (!bi->skipErasedCheck) { -- erasedOk = yaffs_CheckChunkErased(dev, chunk); -- if (erasedOk != YAFFS_OK) { -+ if (tn) { -+ tn->internal[0] = file_struct->top; -+ file_struct->top = tn; -+ file_struct->top_level++; -+ } else { - T(YAFFS_TRACE_ERROR, -- (TSTR("**>> yaffs chunk %d was not erased" -- TENDSTR), chunk)); -- -- /* try another chunk */ -- continue; -+ (TSTR("yaffs: no more tnodes" TENDSTR))); -+ return NULL; - } -- bi->skipErasedCheck = 1; - } -+ } - -- writeOk = yaffs_WriteChunkWithTagsToNAND(dev, chunk, -- data, tags); -- if (writeOk != YAFFS_OK) { -- yaffs_HandleWriteChunkError(dev, chunk, erasedOk); -- /* try another chunk */ -- continue; -- } -+ /* Traverse down to level 0, adding anything we need */ - -- /* Copy the data into the robustification buffer */ -- yaffs_HandleWriteChunkOk(dev, chunk, data, tags); -+ l = file_struct->top_level; -+ tn = file_struct->top; - -- } while (writeOk != YAFFS_OK && -- (yaffs_wr_attempts <= 0 || attempts <= yaffs_wr_attempts)); -+ if (l > 0) { -+ while (l > 0 && tn) { -+ x = (chunk_id >> -+ (YAFFS_TNODES_LEVEL0_BITS + -+ (l - 1) * YAFFS_TNODES_INTERNAL_BITS)) & -+ YAFFS_TNODES_INTERNAL_MASK; - -- if (!writeOk) -- chunk = -1; - -- if (attempts > 1) { -- T(YAFFS_TRACE_ERROR, -- (TSTR("**>> yaffs write required %d attempts" TENDSTR), -- attempts)); -+ if ((l > 1) && !tn->internal[x]) { -+ /* Add missing non-level-zero tnode */ -+ tn->internal[x] = yaffs_get_tnode(dev); -+ if(!tn->internal[x]) -+ return NULL; -+ } else if (l == 1) { -+ /* Looking from level 1 at level 0 */ -+ if (passed_tn) { -+ /* If we already have one, then release it.*/ -+ if (tn->internal[x]) -+ yaffs_free_tnode(dev, tn->internal[x]); -+ tn->internal[x] = passed_tn; -+ -+ } else if (!tn->internal[x]) { -+ /* Don't have one, none passed in */ -+ tn->internal[x] = yaffs_get_tnode(dev); -+ if(!tn->internal[x]) -+ return NULL; -+ } -+ } - -- dev->nRetriedWrites += (attempts - 1); -+ tn = tn->internal[x]; -+ l--; -+ } -+ } else { -+ /* top is level 0 */ -+ if (passed_tn) { -+ memcpy(tn, passed_tn, (dev->tnode_width * YAFFS_NTNODES_LEVEL0)/8); -+ yaffs_free_tnode(dev, passed_tn); -+ } - } - -- return chunk; -+ return tn; - } - --/* -- * Block retiring for handling a broken block. -- */ -- --static void yaffs_RetireBlock(yaffs_Device *dev, int blockInNAND) -+static int yaffs_find_chunk_in_group(yaffs_dev_t *dev, int theChunk, -+ yaffs_ext_tags *tags, int obj_id, -+ int inode_chunk) - { -- yaffs_BlockInfo *bi = yaffs_GetBlockInfo(dev, blockInNAND); -+ int j; - -- yaffs_InvalidateCheckpoint(dev); -+ for (j = 0; theChunk && j < dev->chunk_grp_size; j++) { -+ if (yaffs_check_chunk_bit(dev, theChunk / dev->param.chunks_per_block, -+ theChunk % dev->param.chunks_per_block)) { -+ -+ if(dev->chunk_grp_size == 1) -+ return theChunk; -+ else { -+ yaffs_rd_chunk_tags_nand(dev, theChunk, NULL, -+ tags); -+ if (yaffs_tags_match(tags, obj_id, inode_chunk)) { -+ /* found it; */ -+ return theChunk; -+ } -+ } -+ } -+ theChunk++; -+ } -+ return -1; -+} - -- if (yaffs_MarkBlockBad(dev, blockInNAND) != YAFFS_OK) { -- if (yaffs_EraseBlockInNAND(dev, blockInNAND) != YAFFS_OK) { -- T(YAFFS_TRACE_ALWAYS, (TSTR( -- "yaffs: Failed to mark bad and erase block %d" -- TENDSTR), blockInNAND)); -- } else { -- yaffs_ExtendedTags tags; -- int chunkId = blockInNAND * dev->nChunksPerBlock; -+#if 0 -+/* Experimental code not being used yet. Might speed up file deletion */ -+/* DeleteWorker scans backwards through the tnode tree and deletes all the -+ * chunks and tnodes in the file. -+ * Returns 1 if the tree was deleted. -+ * Returns 0 if it stopped early due to hitting the limit and the delete is incomplete. -+ */ - -- __u8 *buffer = yaffs_GetTempBuffer(dev, __LINE__); -+static int yaffs_del_worker(yaffs_obj_t *in, yaffs_tnode_t *tn, __u32 level, -+ int chunk_offset, int *limit) -+{ -+ int i; -+ int inode_chunk; -+ int theChunk; -+ yaffs_ext_tags tags; -+ int foundChunk; -+ yaffs_dev_t *dev = in->my_dev; - -- memset(buffer, 0xff, dev->nDataBytesPerChunk); -- yaffs_InitialiseTags(&tags); -- tags.sequenceNumber = YAFFS_SEQUENCE_BAD_BLOCK; -- if (dev->writeChunkWithTagsToNAND(dev, chunkId - -- dev->chunkOffset, buffer, &tags) != YAFFS_OK) -- T(YAFFS_TRACE_ALWAYS, (TSTR("yaffs: Failed to " -- TCONT("write bad block marker to block %d") -- TENDSTR), blockInNAND)); -+ int allDone = 1; - -- yaffs_ReleaseTempBuffer(dev, buffer, __LINE__); -- } -- } -+ if (tn) { -+ if (level > 0) { -+ for (i = YAFFS_NTNODES_INTERNAL - 1; allDone && i >= 0; -+ i--) { -+ if (tn->internal[i]) { -+ if (limit && (*limit) < 0) { -+ allDone = 0; -+ } else { -+ allDone = -+ yaffs_del_worker(in, -+ tn-> -+ internal -+ [i], -+ level - -+ 1, -+ (chunk_offset -+ << -+ YAFFS_TNODES_INTERNAL_BITS) -+ + i, -+ limit); -+ } -+ if (allDone) { -+ yaffs_free_tnode(dev, -+ tn-> -+ internal[i]); -+ tn->internal[i] = NULL; -+ } -+ } -+ } -+ return (allDone) ? 1 : 0; -+ } else if (level == 0) { -+ int hitLimit = 0; - -- bi->blockState = YAFFS_BLOCK_STATE_DEAD; -- bi->gcPrioritise = 0; -- bi->needsRetiring = 0; -+ for (i = YAFFS_NTNODES_LEVEL0 - 1; i >= 0 && !hitLimit; -+ i--) { -+ theChunk = yaffs_get_group_base(dev, tn, i); -+ if (theChunk) { - -- dev->nRetiredBlocks++; --} -+ inode_chunk = (chunk_offset << -+ YAFFS_TNODES_LEVEL0_BITS) + i; - --/* -- * Functions for robustisizing TODO -- * -- */ -+ foundChunk = -+ yaffs_find_chunk_in_group(dev, -+ theChunk, -+ &tags, -+ in->obj_id, -+ inode_chunk); - --static void yaffs_HandleWriteChunkOk(yaffs_Device *dev, int chunkInNAND, -- const __u8 *data, -- const yaffs_ExtendedTags *tags) --{ --} -+ if (foundChunk > 0) { -+ yaffs_chunk_del(dev, -+ foundChunk, 1, -+ __LINE__); -+ in->n_data_chunks--; -+ if (limit) { -+ *limit = *limit - 1; -+ if (*limit <= 0) -+ hitLimit = 1; -+ } - --static void yaffs_HandleUpdateChunk(yaffs_Device *dev, int chunkInNAND, -- const yaffs_ExtendedTags *tags) --{ --} -+ } - --void yaffs_HandleChunkError(yaffs_Device *dev, yaffs_BlockInfo *bi) --{ -- if (!bi->gcPrioritise) { -- bi->gcPrioritise = 1; -- dev->hasPendingPrioritisedGCs = 1; -- bi->chunkErrorStrikes++; -+ yaffs_load_tnode_0(dev, tn, i, 0); -+ } - -- if (bi->chunkErrorStrikes > 3) { -- bi->needsRetiring = 1; /* Too many stikes, so retire this */ -- T(YAFFS_TRACE_ALWAYS, (TSTR("yaffs: Block struck out" TENDSTR))); -+ } -+ return (i < 0) ? 1 : 0; - - } -+ - } -+ -+ return 1; -+ - } - --static void yaffs_HandleWriteChunkError(yaffs_Device *dev, int chunkInNAND, -- int erasedOk) -+#endif -+ -+static void yaffs_soft_del_chunk(yaffs_dev_t *dev, int chunk) - { -- int blockInNAND = chunkInNAND / dev->nChunksPerBlock; -- yaffs_BlockInfo *bi = yaffs_GetBlockInfo(dev, blockInNAND); -+ yaffs_block_info_t *theBlock; -+ unsigned block_no; - -- yaffs_HandleChunkError(dev, bi); -+ T(YAFFS_TRACE_DELETION, (TSTR("soft delete chunk %d" TENDSTR), chunk)); - -- if (erasedOk) { -- /* Was an actual write failure, so mark the block for retirement */ -- bi->needsRetiring = 1; -- T(YAFFS_TRACE_ERROR | YAFFS_TRACE_BAD_BLOCKS, -- (TSTR("**>> Block %d needs retiring" TENDSTR), blockInNAND)); -+ block_no = chunk / dev->param.chunks_per_block; -+ theBlock = yaffs_get_block_info(dev, block_no); -+ if (theBlock) { -+ theBlock->soft_del_pages++; -+ dev->n_free_chunks++; -+ yaffs2_update_oldest_dirty_seq(dev, block_no, theBlock); - } -- -- /* Delete the chunk */ -- yaffs_DeleteChunk(dev, chunkInNAND, 1, __LINE__); - } - -+/* SoftDeleteWorker scans backwards through the tnode tree and soft deletes all the chunks in the file. -+ * All soft deleting does is increment the block's softdelete count and pulls the chunk out -+ * of the tnode. -+ * Thus, essentially this is the same as DeleteWorker except that the chunks are soft deleted. -+ */ - --/*---------------- Name handling functions ------------*/ -- --static __u16 yaffs_CalcNameSum(const YCHAR *name) -+static int yaffs_soft_del_worker(yaffs_obj_t *in, yaffs_tnode_t *tn, -+ __u32 level, int chunk_offset) - { -- __u16 sum = 0; -- __u16 i = 1; -+ int i; -+ int theChunk; -+ int allDone = 1; -+ yaffs_dev_t *dev = in->my_dev; - -- const YUCHAR *bname = (const YUCHAR *) name; -- if (bname) { -- while ((*bname) && (i < (YAFFS_MAX_NAME_LENGTH/2))) { -+ if (tn) { -+ if (level > 0) { -+ -+ for (i = YAFFS_NTNODES_INTERNAL - 1; allDone && i >= 0; -+ i--) { -+ if (tn->internal[i]) { -+ allDone = -+ yaffs_soft_del_worker(in, -+ tn-> -+ internal[i], -+ level - 1, -+ (chunk_offset -+ << -+ YAFFS_TNODES_INTERNAL_BITS) -+ + i); -+ if (allDone) { -+ yaffs_free_tnode(dev, -+ tn-> -+ internal[i]); -+ tn->internal[i] = NULL; -+ } else { -+ /* Hoosterman... how could this happen? */ -+ } -+ } -+ } -+ return (allDone) ? 1 : 0; -+ } else if (level == 0) { -+ -+ for (i = YAFFS_NTNODES_LEVEL0 - 1; i >= 0; i--) { -+ theChunk = yaffs_get_group_base(dev, tn, i); -+ if (theChunk) { -+ /* Note this does not find the real chunk, only the chunk group. -+ * We make an assumption that a chunk group is not larger than -+ * a block. -+ */ -+ yaffs_soft_del_chunk(dev, theChunk); -+ yaffs_load_tnode_0(dev, tn, i, 0); -+ } -+ -+ } -+ return 1; - --#ifdef CONFIG_YAFFS_CASE_INSENSITIVE -- sum += yaffs_toupper(*bname) * i; --#else -- sum += (*bname) * i; --#endif -- i++; -- bname++; - } -+ - } -- return sum; -+ -+ return 1; -+ - } - --static void yaffs_SetObjectName(yaffs_Object *obj, const YCHAR *name) -+static void yaffs_soft_del_file(yaffs_obj_t *obj) - { --#ifdef CONFIG_YAFFS_SHORT_NAMES_IN_RAM -- memset(obj->shortName, 0, sizeof(YCHAR) * (YAFFS_SHORT_NAME_LENGTH+1)); -- if (name && yaffs_strlen(name) <= YAFFS_SHORT_NAME_LENGTH) -- yaffs_strcpy(obj->shortName, name); -- else -- obj->shortName[0] = _Y('\0'); --#endif -- obj->sum = yaffs_CalcNameSum(name); -+ if (obj->deleted && -+ obj->variant_type == YAFFS_OBJECT_TYPE_FILE && !obj->soft_del) { -+ if (obj->n_data_chunks <= 0) { -+ /* Empty file with no duplicate object headers, just delete it immediately */ -+ yaffs_free_tnode(obj->my_dev, -+ obj->variant.file_variant.top); -+ obj->variant.file_variant.top = NULL; -+ T(YAFFS_TRACE_TRACING, -+ (TSTR("yaffs: Deleting empty file %d" TENDSTR), -+ obj->obj_id)); -+ yaffs_generic_obj_del(obj); -+ } else { -+ yaffs_soft_del_worker(obj, -+ obj->variant.file_variant.top, -+ obj->variant.file_variant. -+ top_level, 0); -+ obj->soft_del = 1; -+ } -+ } - } - --/*-------------------- TNODES ------------------- -- -- * List of spare tnodes -- * The list is hooked together using the first pointer -- * in the tnode. -- */ -- --/* yaffs_CreateTnodes creates a bunch more tnodes and -- * adds them to the tnode free list. -- * Don't use this function directly -+/* Pruning removes any part of the file structure tree that is beyond the -+ * bounds of the file (ie that does not point to chunks). -+ * -+ * A file should only get pruned when its size is reduced. -+ * -+ * Before pruning, the chunks must be pulled from the tree and the -+ * level 0 tnode entries must be zeroed out. -+ * Could also use this for file deletion, but that's probably better handled -+ * by a special case. -+ * -+ * This function is recursive. For levels > 0 the function is called again on -+ * any sub-tree. For level == 0 we just check if the sub-tree has data. -+ * If there is no data in a subtree then it is pruned. - */ - --static int yaffs_CreateTnodes(yaffs_Device *dev, int nTnodes) -+static yaffs_tnode_t *yaffs_prune_worker(yaffs_dev_t *dev, yaffs_tnode_t *tn, -+ __u32 level, int del0) - { - int i; -- int tnodeSize; -- yaffs_Tnode *newTnodes; -- __u8 *mem; -- yaffs_Tnode *curr; -- yaffs_Tnode *next; -- yaffs_TnodeList *tnl; -+ int hasData; - -- if (nTnodes < 1) -- return YAFFS_OK; -+ if (tn) { -+ hasData = 0; - -- /* Calculate the tnode size in bytes for variable width tnode support. -- * Must be a multiple of 32-bits */ -- tnodeSize = (dev->tnodeWidth * YAFFS_NTNODES_LEVEL0)/8; -+ if(level > 0){ -+ for (i = 0; i < YAFFS_NTNODES_INTERNAL; i++) { -+ if (tn->internal[i]) { -+ tn->internal[i] = -+ yaffs_prune_worker(dev, tn->internal[i], -+ level - 1, -+ (i == 0) ? del0 : 1); -+ } - -- if (tnodeSize < sizeof(yaffs_Tnode)) -- tnodeSize = sizeof(yaffs_Tnode); -+ if (tn->internal[i]) -+ hasData++; -+ } -+ } else { -+ int tnode_size_u32 = dev->tnode_size/sizeof(__u32); -+ __u32 *map = (__u32 *)tn; - -- /* make these things */ -+ for(i = 0; !hasData && i < tnode_size_u32; i++){ -+ if(map[i]) -+ hasData++; -+ } -+ } - -- newTnodes = YMALLOC(nTnodes * tnodeSize); -- mem = (__u8 *)newTnodes; -+ if (hasData == 0 && del0) { -+ /* Free and return NULL */ - -- if (!newTnodes) { -- T(YAFFS_TRACE_ERROR, -- (TSTR("yaffs: Could not allocate Tnodes" TENDSTR))); -- return YAFFS_FAIL; -- } -+ yaffs_free_tnode(dev, tn); -+ tn = NULL; -+ } - -- /* Hook them into the free list */ --#if 0 -- for (i = 0; i < nTnodes - 1; i++) { -- newTnodes[i].internal[0] = &newTnodes[i + 1]; --#ifdef CONFIG_YAFFS_TNODE_LIST_DEBUG -- newTnodes[i].internal[YAFFS_NTNODES_INTERNAL] = (void *)1; --#endif - } - -- newTnodes[nTnodes - 1].internal[0] = dev->freeTnodes; --#ifdef CONFIG_YAFFS_TNODE_LIST_DEBUG -- newTnodes[nTnodes - 1].internal[YAFFS_NTNODES_INTERNAL] = (void *)1; --#endif -- dev->freeTnodes = newTnodes; --#else -- /* New hookup for wide tnodes */ -- for (i = 0; i < nTnodes - 1; i++) { -- curr = (yaffs_Tnode *) &mem[i * tnodeSize]; -- next = (yaffs_Tnode *) &mem[(i+1) * tnodeSize]; -- curr->internal[0] = next; -- } -+ return tn; - -- curr = (yaffs_Tnode *) &mem[(nTnodes - 1) * tnodeSize]; -- curr->internal[0] = dev->freeTnodes; -- dev->freeTnodes = (yaffs_Tnode *)mem; -+} - --#endif -+static int yaffs_prune_tree(yaffs_dev_t *dev, -+ yaffs_file_s *file_struct) -+{ -+ int i; -+ int hasData; -+ int done = 0; -+ yaffs_tnode_t *tn; - -+ if (file_struct->top_level > 0) { -+ file_struct->top = -+ yaffs_prune_worker(dev, file_struct->top, file_struct->top_level, 0); -+ -+ /* Now we have a tree with all the non-zero branches NULL but the height -+ * is the same as it was. -+ * Let's see if we can trim internal tnodes to shorten the tree. -+ * We can do this if only the 0th element in the tnode is in use -+ * (ie all the non-zero are NULL) -+ */ - -- dev->nFreeTnodes += nTnodes; -- dev->nTnodesCreated += nTnodes; -+ while (file_struct->top_level && !done) { -+ tn = file_struct->top; - -- /* Now add this bunch of tnodes to a list for freeing up. -- * NB If we can't add this to the management list it isn't fatal -- * but it just means we can't free this bunch of tnodes later. -- */ -+ hasData = 0; -+ for (i = 1; i < YAFFS_NTNODES_INTERNAL; i++) { -+ if (tn->internal[i]) -+ hasData++; -+ } - -- tnl = YMALLOC(sizeof(yaffs_TnodeList)); -- if (!tnl) { -- T(YAFFS_TRACE_ERROR, -- (TSTR -- ("yaffs: Could not add tnodes to management list" TENDSTR))); -- return YAFFS_FAIL; -- } else { -- tnl->tnodes = newTnodes; -- tnl->next = dev->allocatedTnodeList; -- dev->allocatedTnodeList = tnl; -+ if (!hasData) { -+ file_struct->top = tn->internal[0]; -+ file_struct->top_level--; -+ yaffs_free_tnode(dev, tn); -+ } else { -+ done = 1; -+ } -+ } - } - -- T(YAFFS_TRACE_ALLOCATE, (TSTR("yaffs: Tnodes added" TENDSTR))); -- - return YAFFS_OK; - } - --/* GetTnode gets us a clean tnode. Tries to make allocate more if we run out */ -+/*-------------------- End of File Structure functions.-------------------*/ -+ - --static yaffs_Tnode *yaffs_GetTnodeRaw(yaffs_Device *dev) -+/* AllocateEmptyObject gets us a clean Object. Tries to make allocate more if we run out */ -+static yaffs_obj_t *yaffs_alloc_empty_obj(yaffs_dev_t *dev) - { -- yaffs_Tnode *tn = NULL; -+ yaffs_obj_t *obj = yaffs_alloc_raw_obj(dev); - -- /* If there are none left make more */ -- if (!dev->freeTnodes) -- yaffs_CreateTnodes(dev, YAFFS_ALLOCATION_NTNODES); -- -- if (dev->freeTnodes) { -- tn = dev->freeTnodes; --#ifdef CONFIG_YAFFS_TNODE_LIST_DEBUG -- if (tn->internal[YAFFS_NTNODES_INTERNAL] != (void *)1) { -- /* Hoosterman, this thing looks like it isn't in the list */ -- T(YAFFS_TRACE_ALWAYS, -- (TSTR("yaffs: Tnode list bug 1" TENDSTR))); -- } --#endif -- dev->freeTnodes = dev->freeTnodes->internal[0]; -- dev->nFreeTnodes--; -- } -+ if (obj) { -+ dev->n_obj++; - -- dev->nCheckpointBlocksRequired = 0; /* force recalculation*/ -+ /* Now sweeten it up... */ - -- return tn; --} -+ memset(obj, 0, sizeof(yaffs_obj_t)); -+ obj->being_created = 1; - --static yaffs_Tnode *yaffs_GetTnode(yaffs_Device *dev) --{ -- yaffs_Tnode *tn = yaffs_GetTnodeRaw(dev); -- int tnodeSize = (dev->tnodeWidth * YAFFS_NTNODES_LEVEL0)/8; -+ obj->my_dev = dev; -+ obj->hdr_chunk = 0; -+ obj->variant_type = YAFFS_OBJECT_TYPE_UNKNOWN; -+ YINIT_LIST_HEAD(&(obj->hard_links)); -+ YINIT_LIST_HEAD(&(obj->hash_link)); -+ YINIT_LIST_HEAD(&obj->siblings); - -- if (tnodeSize < sizeof(yaffs_Tnode)) -- tnodeSize = sizeof(yaffs_Tnode); - -- if (tn) -- memset(tn, 0, tnodeSize); -+ /* Now make the directory sane */ -+ if (dev->root_dir) { -+ obj->parent = dev->root_dir; -+ ylist_add(&(obj->siblings), &dev->root_dir->variant.dir_variant.children); -+ } - -- return tn; -+ /* Add it to the lost and found directory. -+ * NB Can't put root or lostNFound in lostNFound so -+ * check if lostNFound exists first -+ */ -+ if (dev->lost_n_found) -+ yaffs_add_obj_to_dir(dev->lost_n_found, obj); -+ -+ obj->being_created = 0; -+ } -+ -+ dev->checkpoint_blocks_required = 0; /* force recalculation*/ -+ -+ return obj; - } - --/* FreeTnode frees up a tnode and puts it back on the free list */ --static void yaffs_FreeTnode(yaffs_Device *dev, yaffs_Tnode *tn) -+static yaffs_obj_t *yaffs_create_fake_dir(yaffs_dev_t *dev, int number, -+ __u32 mode) - { -- if (tn) { --#ifdef CONFIG_YAFFS_TNODE_LIST_DEBUG -- if (tn->internal[YAFFS_NTNODES_INTERNAL] != 0) { -- /* Hoosterman, this thing looks like it is already in the list */ -- T(YAFFS_TRACE_ALWAYS, -- (TSTR("yaffs: Tnode list bug 2" TENDSTR))); -- } -- tn->internal[YAFFS_NTNODES_INTERNAL] = (void *)1; --#endif -- tn->internal[0] = dev->freeTnodes; -- dev->freeTnodes = tn; -- dev->nFreeTnodes++; -+ -+ yaffs_obj_t *obj = -+ yaffs_new_obj(dev, number, YAFFS_OBJECT_TYPE_DIRECTORY); -+ if (obj) { -+ obj->fake = 1; /* it is fake so it might have no NAND presence... */ -+ obj->rename_allowed = 0; /* ... and we're not allowed to rename it... */ -+ obj->unlink_allowed = 0; /* ... or unlink it */ -+ obj->deleted = 0; -+ obj->unlinked = 0; -+ obj->yst_mode = mode; -+ obj->my_dev = dev; -+ obj->hdr_chunk = 0; /* Not a valid chunk. */ -+ } -+ -+ return obj; -+ -+} -+ -+static void yaffs_unhash_obj(yaffs_obj_t *obj) -+{ -+ int bucket; -+ yaffs_dev_t *dev = obj->my_dev; -+ -+ /* If it is still linked into the bucket list, free from the list */ -+ if (!ylist_empty(&obj->hash_link)) { -+ ylist_del_init(&obj->hash_link); -+ bucket = yaffs_hash_fn(obj->obj_id); -+ dev->obj_bucket[bucket].count--; - } -- dev->nCheckpointBlocksRequired = 0; /* force recalculation*/ - } - --static void yaffs_DeinitialiseTnodes(yaffs_Device *dev) -+/* FreeObject frees up a Object and puts it back on the free list */ -+static void yaffs_free_obj(yaffs_obj_t *obj) - { -- /* Free the list of allocated tnodes */ -- yaffs_TnodeList *tmp; -+ yaffs_dev_t *dev = obj->my_dev; -+ -+ T(YAFFS_TRACE_OS, (TSTR("FreeObject %p inode %p"TENDSTR), obj, obj->my_inode)); - -- while (dev->allocatedTnodeList) { -- tmp = dev->allocatedTnodeList->next; -+ if (!obj) -+ YBUG(); -+ if (obj->parent) -+ YBUG(); -+ if (!ylist_empty(&obj->siblings)) -+ YBUG(); - -- YFREE(dev->allocatedTnodeList->tnodes); -- YFREE(dev->allocatedTnodeList); -- dev->allocatedTnodeList = tmp; - -+ if (obj->my_inode) { -+ /* We're still hooked up to a cached inode. -+ * Don't delete now, but mark for later deletion -+ */ -+ obj->defered_free = 1; -+ return; - } - -- dev->freeTnodes = NULL; -- dev->nFreeTnodes = 0; --} -+ yaffs_unhash_obj(obj); - --static void yaffs_InitialiseTnodes(yaffs_Device *dev) --{ -- dev->allocatedTnodeList = NULL; -- dev->freeTnodes = NULL; -- dev->nFreeTnodes = 0; -- dev->nTnodesCreated = 0; -+ yaffs_free_raw_obj(dev,obj); -+ dev->n_obj--; -+ dev->checkpoint_blocks_required = 0; /* force recalculation*/ - } - - --void yaffs_PutLevel0Tnode(yaffs_Device *dev, yaffs_Tnode *tn, unsigned pos, -- unsigned val) -+void yaffs_handle_defered_free(yaffs_obj_t *obj) - { -- __u32 *map = (__u32 *)tn; -- __u32 bitInMap; -- __u32 bitInWord; -- __u32 wordInMap; -- __u32 mask; -- -- pos &= YAFFS_TNODES_LEVEL0_MASK; -- val >>= dev->chunkGroupBits; -+ if (obj->defered_free) -+ yaffs_free_obj(obj); -+} - -- bitInMap = pos * dev->tnodeWidth; -- wordInMap = bitInMap / 32; -- bitInWord = bitInMap & (32 - 1); -+static void yaffs_init_tnodes_and_objs(yaffs_dev_t *dev) -+{ -+ int i; - -- mask = dev->tnodeMask << bitInWord; -+ dev->n_obj = 0; -+ dev->n_tnodes = 0; - -- map[wordInMap] &= ~mask; -- map[wordInMap] |= (mask & (val << bitInWord)); -+ yaffs_init_raw_tnodes_and_objs(dev); - -- if (dev->tnodeWidth > (32 - bitInWord)) { -- bitInWord = (32 - bitInWord); -- wordInMap++;; -- mask = dev->tnodeMask >> (/*dev->tnodeWidth -*/ bitInWord); -- map[wordInMap] &= ~mask; -- map[wordInMap] |= (mask & (val >> bitInWord)); -+ for (i = 0; i < YAFFS_NOBJECT_BUCKETS; i++) { -+ YINIT_LIST_HEAD(&dev->obj_bucket[i].list); -+ dev->obj_bucket[i].count = 0; - } - } - --static __u32 yaffs_GetChunkGroupBase(yaffs_Device *dev, yaffs_Tnode *tn, -- unsigned pos) -+static int yaffs_find_nice_bucket(yaffs_dev_t *dev) - { -- __u32 *map = (__u32 *)tn; -- __u32 bitInMap; -- __u32 bitInWord; -- __u32 wordInMap; -- __u32 val; -+ int i; -+ int l = 999; -+ int lowest = 999999; - -- pos &= YAFFS_TNODES_LEVEL0_MASK; - -- bitInMap = pos * dev->tnodeWidth; -- wordInMap = bitInMap / 32; -- bitInWord = bitInMap & (32 - 1); -+ /* Search for the shortest list or one that -+ * isn't too long. -+ */ - -- val = map[wordInMap] >> bitInWord; -+ for (i = 0; i < 10 && lowest > 4; i++) { -+ dev->bucket_finder++; -+ dev->bucket_finder %= YAFFS_NOBJECT_BUCKETS; -+ if (dev->obj_bucket[dev->bucket_finder].count < lowest) { -+ lowest = dev->obj_bucket[dev->bucket_finder].count; -+ l = dev->bucket_finder; -+ } - -- if (dev->tnodeWidth > (32 - bitInWord)) { -- bitInWord = (32 - bitInWord); -- wordInMap++;; -- val |= (map[wordInMap] << bitInWord); - } - -- val &= dev->tnodeMask; -- val <<= dev->chunkGroupBits; -- -- return val; -+ return l; - } - --/* ------------------- End of individual tnode manipulation -----------------*/ -- --/* ---------Functions to manipulate the look-up tree (made up of tnodes) ------ -- * The look up tree is represented by the top tnode and the number of topLevel -- * in the tree. 0 means only the level 0 tnode is in the tree. -- */ -- --/* FindLevel0Tnode finds the level 0 tnode, if one exists. */ --static yaffs_Tnode *yaffs_FindLevel0Tnode(yaffs_Device *dev, -- yaffs_FileStructure *fStruct, -- __u32 chunkId) -+static int yaffs_new_obj_id(yaffs_dev_t *dev) - { -- yaffs_Tnode *tn = fStruct->top; -- __u32 i; -- int requiredTallness; -- int level = fStruct->topLevel; -- -- /* Check sane level and chunk Id */ -- if (level < 0 || level > YAFFS_TNODES_MAX_LEVEL) -- return NULL; -+ int bucket = yaffs_find_nice_bucket(dev); - -- if (chunkId > YAFFS_MAX_CHUNK_ID) -- return NULL; -+ /* Now find an object value that has not already been taken -+ * by scanning the list. -+ */ - -- /* First check we're tall enough (ie enough topLevel) */ -+ int found = 0; -+ struct ylist_head *i; - -- i = chunkId >> YAFFS_TNODES_LEVEL0_BITS; -- requiredTallness = 0; -- while (i) { -- i >>= YAFFS_TNODES_INTERNAL_BITS; -- requiredTallness++; -- } -+ __u32 n = (__u32) bucket; - -- if (requiredTallness > fStruct->topLevel) -- return NULL; /* Not tall enough, so we can't find it */ -+ /* yaffs_check_obj_hash_sane(); */ - -- /* Traverse down to level 0 */ -- while (level > 0 && tn) { -- tn = tn->internal[(chunkId >> -- (YAFFS_TNODES_LEVEL0_BITS + -- (level - 1) * -- YAFFS_TNODES_INTERNAL_BITS)) & -- YAFFS_TNODES_INTERNAL_MASK]; -- level--; -+ while (!found) { -+ found = 1; -+ n += YAFFS_NOBJECT_BUCKETS; -+ if (1 || dev->obj_bucket[bucket].count > 0) { -+ ylist_for_each(i, &dev->obj_bucket[bucket].list) { -+ /* If there is already one in the list */ -+ if (i && ylist_entry(i, yaffs_obj_t, -+ hash_link)->obj_id == n) { -+ found = 0; -+ } -+ } -+ } - } - -- return tn; -+ return n; - } - --/* AddOrFindLevel0Tnode finds the level 0 tnode if it exists, otherwise first expands the tree. -- * This happens in two steps: -- * 1. If the tree isn't tall enough, then make it taller. -- * 2. Scan down the tree towards the level 0 tnode adding tnodes if required. -- * -- * Used when modifying the tree. -- * -- * If the tn argument is NULL, then a fresh tnode will be added otherwise the specified tn will -- * be plugged into the ttree. -- */ -- --static yaffs_Tnode *yaffs_AddOrFindLevel0Tnode(yaffs_Device *dev, -- yaffs_FileStructure *fStruct, -- __u32 chunkId, -- yaffs_Tnode *passedTn) -+static void yaffs_hash_obj(yaffs_obj_t *in) - { -- int requiredTallness; -- int i; -- int l; -- yaffs_Tnode *tn; -- -- __u32 x; -+ int bucket = yaffs_hash_fn(in->obj_id); -+ yaffs_dev_t *dev = in->my_dev; - -+ ylist_add(&in->hash_link, &dev->obj_bucket[bucket].list); -+ dev->obj_bucket[bucket].count++; -+} - -- /* Check sane level and page Id */ -- if (fStruct->topLevel < 0 || fStruct->topLevel > YAFFS_TNODES_MAX_LEVEL) -- return NULL; -+yaffs_obj_t *yaffs_find_by_number(yaffs_dev_t *dev, __u32 number) -+{ -+ int bucket = yaffs_hash_fn(number); -+ struct ylist_head *i; -+ yaffs_obj_t *in; - -- if (chunkId > YAFFS_MAX_CHUNK_ID) -- return NULL; -+ ylist_for_each(i, &dev->obj_bucket[bucket].list) { -+ /* Look if it is in the list */ -+ if (i) { -+ in = ylist_entry(i, yaffs_obj_t, hash_link); -+ if (in->obj_id == number) { - -- /* First check we're tall enough (ie enough topLevel) */ -+ /* Don't tell the VFS about this one if it is defered free */ -+ if (in->defered_free) -+ return NULL; - -- x = chunkId >> YAFFS_TNODES_LEVEL0_BITS; -- requiredTallness = 0; -- while (x) { -- x >>= YAFFS_TNODES_INTERNAL_BITS; -- requiredTallness++; -+ return in; -+ } -+ } - } - -+ return NULL; -+} - -- if (requiredTallness > fStruct->topLevel) { -- /* Not tall enough, gotta make the tree taller */ -- for (i = fStruct->topLevel; i < requiredTallness; i++) { -+yaffs_obj_t *yaffs_new_obj(yaffs_dev_t *dev, int number, -+ yaffs_obj_type type) -+{ -+ yaffs_obj_t *theObject=NULL; -+ yaffs_tnode_t *tn = NULL; - -- tn = yaffs_GetTnode(dev); -+ if (number < 0) -+ number = yaffs_new_obj_id(dev); - -- if (tn) { -- tn->internal[0] = fStruct->top; -- fStruct->top = tn; -- } else { -- T(YAFFS_TRACE_ERROR, -- (TSTR("yaffs: no more tnodes" TENDSTR))); -- } -- } -+ if (type == YAFFS_OBJECT_TYPE_FILE) { -+ tn = yaffs_get_tnode(dev); -+ if (!tn) -+ return NULL; -+ } - -- fStruct->topLevel = requiredTallness; -+ theObject = yaffs_alloc_empty_obj(dev); -+ if (!theObject){ -+ if(tn) -+ yaffs_free_tnode(dev,tn); -+ return NULL; - } - -- /* Traverse down to level 0, adding anything we need */ - -- l = fStruct->topLevel; -- tn = fStruct->top; -+ if (theObject) { -+ theObject->fake = 0; -+ theObject->rename_allowed = 1; -+ theObject->unlink_allowed = 1; -+ theObject->obj_id = number; -+ yaffs_hash_obj(theObject); -+ theObject->variant_type = type; -+#ifdef CONFIG_YAFFS_WINCE -+ yfsd_win_file_time_now(theObject->win_atime); -+ theObject->win_ctime[0] = theObject->win_mtime[0] = -+ theObject->win_atime[0]; -+ theObject->win_ctime[1] = theObject->win_mtime[1] = -+ theObject->win_atime[1]; -+ -+#else - -- if (l > 0) { -- while (l > 0 && tn) { -- x = (chunkId >> -- (YAFFS_TNODES_LEVEL0_BITS + -- (l - 1) * YAFFS_TNODES_INTERNAL_BITS)) & -- YAFFS_TNODES_INTERNAL_MASK; -+ theObject->yst_atime = theObject->yst_mtime = -+ theObject->yst_ctime = Y_CURRENT_TIME; -+#endif -+ switch (type) { -+ case YAFFS_OBJECT_TYPE_FILE: -+ theObject->variant.file_variant.file_size = 0; -+ theObject->variant.file_variant.scanned_size = 0; -+ theObject->variant.file_variant.shrink_size = 0xFFFFFFFF; /* max __u32 */ -+ theObject->variant.file_variant.top_level = 0; -+ theObject->variant.file_variant.top = tn; -+ break; -+ case YAFFS_OBJECT_TYPE_DIRECTORY: -+ YINIT_LIST_HEAD(&theObject->variant.dir_variant. -+ children); -+ YINIT_LIST_HEAD(&theObject->variant.dir_variant. -+ dirty); -+ break; -+ case YAFFS_OBJECT_TYPE_SYMLINK: -+ case YAFFS_OBJECT_TYPE_HARDLINK: -+ case YAFFS_OBJECT_TYPE_SPECIAL: -+ /* No action required */ -+ break; -+ case YAFFS_OBJECT_TYPE_UNKNOWN: -+ /* todo this should not happen */ -+ break; -+ } -+ } - -+ return theObject; -+} - -- if ((l > 1) && !tn->internal[x]) { -- /* Add missing non-level-zero tnode */ -- tn->internal[x] = yaffs_GetTnode(dev); -+yaffs_obj_t *yaffs_find_or_create_by_number(yaffs_dev_t *dev, -+ int number, -+ yaffs_obj_type type) -+{ -+ yaffs_obj_t *theObject = NULL; - -- } else if (l == 1) { -- /* Looking from level 1 at level 0 */ -- if (passedTn) { -- /* If we already have one, then release it.*/ -- if (tn->internal[x]) -- yaffs_FreeTnode(dev, tn->internal[x]); -- tn->internal[x] = passedTn; -+ if (number > 0) -+ theObject = yaffs_find_by_number(dev, number); - -- } else if (!tn->internal[x]) { -- /* Don't have one, none passed in */ -- tn->internal[x] = yaffs_GetTnode(dev); -- } -- } -+ if (!theObject) -+ theObject = yaffs_new_obj(dev, number, type); - -- tn = tn->internal[x]; -- l--; -- } -- } else { -- /* top is level 0 */ -- if (passedTn) { -- memcpy(tn, passedTn, (dev->tnodeWidth * YAFFS_NTNODES_LEVEL0)/8); -- yaffs_FreeTnode(dev, passedTn); -- } -- } -+ return theObject; - -- return tn; - } - --static int yaffs_FindChunkInGroup(yaffs_Device *dev, int theChunk, -- yaffs_ExtendedTags *tags, int objectId, -- int chunkInInode) -+ -+YCHAR *yaffs_clone_str(const YCHAR *str) - { -- int j; -+ YCHAR *newStr = NULL; -+ int len; - -- for (j = 0; theChunk && j < dev->chunkGroupSize; j++) { -- if (yaffs_CheckChunkBit(dev, theChunk / dev->nChunksPerBlock, -- theChunk % dev->nChunksPerBlock)) { -- yaffs_ReadChunkWithTagsFromNAND(dev, theChunk, NULL, -- tags); -- if (yaffs_TagsMatch(tags, objectId, chunkInInode)) { -- /* found it; */ -- return theChunk; -- } -- } -- theChunk++; -+ if (!str) -+ str = _Y(""); -+ -+ len = yaffs_strnlen(str,YAFFS_MAX_ALIAS_LENGTH); -+ newStr = YMALLOC((len + 1) * sizeof(YCHAR)); -+ if (newStr){ -+ yaffs_strncpy(newStr, str,len); -+ newStr[len] = 0; - } -- return -1; --} -+ return newStr; - -+} - --/* DeleteWorker scans backwards through the tnode tree and deletes all the -- * chunks and tnodes in the file -- * Returns 1 if the tree was deleted. -- * Returns 0 if it stopped early due to hitting the limit and the delete is incomplete. -+/* -+ * Mknod (create) a new object. -+ * equiv_obj only has meaning for a hard link; -+ * aliasString only has meaning for a symlink. -+ * rdev only has meaning for devices (a subset of special objects) - */ - --static int yaffs_DeleteWorker(yaffs_Object *in, yaffs_Tnode *tn, __u32 level, -- int chunkOffset, int *limit) -+static yaffs_obj_t *yaffs_create_obj(yaffs_obj_type type, -+ yaffs_obj_t *parent, -+ const YCHAR *name, -+ __u32 mode, -+ __u32 uid, -+ __u32 gid, -+ yaffs_obj_t *equiv_obj, -+ const YCHAR *aliasString, __u32 rdev) - { -- int i; -- int chunkInInode; -- int theChunk; -- yaffs_ExtendedTags tags; -- int foundChunk; -- yaffs_Device *dev = in->myDev; -- -- int allDone = 1; -- -- if (tn) { -- if (level > 0) { -- for (i = YAFFS_NTNODES_INTERNAL - 1; allDone && i >= 0; -- i--) { -- if (tn->internal[i]) { -- if (limit && (*limit) < 0) { -- allDone = 0; -- } else { -- allDone = -- yaffs_DeleteWorker(in, -- tn-> -- internal -- [i], -- level - -- 1, -- (chunkOffset -- << -- YAFFS_TNODES_INTERNAL_BITS) -- + i, -- limit); -- } -- if (allDone) { -- yaffs_FreeTnode(dev, -- tn-> -- internal[i]); -- tn->internal[i] = NULL; -- } -- } -- } -- return (allDone) ? 1 : 0; -- } else if (level == 0) { -- int hitLimit = 0; -- -- for (i = YAFFS_NTNODES_LEVEL0 - 1; i >= 0 && !hitLimit; -- i--) { -- theChunk = yaffs_GetChunkGroupBase(dev, tn, i); -- if (theChunk) { -- -- chunkInInode = (chunkOffset << -- YAFFS_TNODES_LEVEL0_BITS) + i; -- -- foundChunk = -- yaffs_FindChunkInGroup(dev, -- theChunk, -- &tags, -- in->objectId, -- chunkInInode); -- -- if (foundChunk > 0) { -- yaffs_DeleteChunk(dev, -- foundChunk, 1, -- __LINE__); -- in->nDataChunks--; -- if (limit) { -- *limit = *limit - 1; -- if (*limit <= 0) -- hitLimit = 1; -- } -- -- } -- -- yaffs_PutLevel0Tnode(dev, tn, i, 0); -- } -- -- } -- return (i < 0) ? 1 : 0; -- -- } -- -- } -- -- return 1; -- --} -- --static void yaffs_SoftDeleteChunk(yaffs_Device *dev, int chunk) --{ -- yaffs_BlockInfo *theBlock; -- -- T(YAFFS_TRACE_DELETION, (TSTR("soft delete chunk %d" TENDSTR), chunk)); -- -- theBlock = yaffs_GetBlockInfo(dev, chunk / dev->nChunksPerBlock); -- if (theBlock) { -- theBlock->softDeletions++; -- dev->nFreeChunks++; -- } --} -- --/* SoftDeleteWorker scans backwards through the tnode tree and soft deletes all the chunks in the file. -- * All soft deleting does is increment the block's softdelete count and pulls the chunk out -- * of the tnode. -- * Thus, essentially this is the same as DeleteWorker except that the chunks are soft deleted. -- */ -- --static int yaffs_SoftDeleteWorker(yaffs_Object *in, yaffs_Tnode *tn, -- __u32 level, int chunkOffset) --{ -- int i; -- int theChunk; -- int allDone = 1; -- yaffs_Device *dev = in->myDev; -- -- if (tn) { -- if (level > 0) { -- -- for (i = YAFFS_NTNODES_INTERNAL - 1; allDone && i >= 0; -- i--) { -- if (tn->internal[i]) { -- allDone = -- yaffs_SoftDeleteWorker(in, -- tn-> -- internal[i], -- level - 1, -- (chunkOffset -- << -- YAFFS_TNODES_INTERNAL_BITS) -- + i); -- if (allDone) { -- yaffs_FreeTnode(dev, -- tn-> -- internal[i]); -- tn->internal[i] = NULL; -- } else { -- /* Hoosterman... how could this happen? */ -- } -- } -- } -- return (allDone) ? 1 : 0; -- } else if (level == 0) { -- -- for (i = YAFFS_NTNODES_LEVEL0 - 1; i >= 0; i--) { -- theChunk = yaffs_GetChunkGroupBase(dev, tn, i); -- if (theChunk) { -- /* Note this does not find the real chunk, only the chunk group. -- * We make an assumption that a chunk group is not larger than -- * a block. -- */ -- yaffs_SoftDeleteChunk(dev, theChunk); -- yaffs_PutLevel0Tnode(dev, tn, i, 0); -- } -- -- } -- return 1; -- -- } -- -- } -- -- return 1; -- --} -- --static void yaffs_SoftDeleteFile(yaffs_Object *obj) --{ -- if (obj->deleted && -- obj->variantType == YAFFS_OBJECT_TYPE_FILE && !obj->softDeleted) { -- if (obj->nDataChunks <= 0) { -- /* Empty file with no duplicate object headers, just delete it immediately */ -- yaffs_FreeTnode(obj->myDev, -- obj->variant.fileVariant.top); -- obj->variant.fileVariant.top = NULL; -- T(YAFFS_TRACE_TRACING, -- (TSTR("yaffs: Deleting empty file %d" TENDSTR), -- obj->objectId)); -- yaffs_DoGenericObjectDeletion(obj); -- } else { -- yaffs_SoftDeleteWorker(obj, -- obj->variant.fileVariant.top, -- obj->variant.fileVariant. -- topLevel, 0); -- obj->softDeleted = 1; -- } -- } --} -- --/* Pruning removes any part of the file structure tree that is beyond the -- * bounds of the file (ie that does not point to chunks). -- * -- * A file should only get pruned when its size is reduced. -- * -- * Before pruning, the chunks must be pulled from the tree and the -- * level 0 tnode entries must be zeroed out. -- * Could also use this for file deletion, but that's probably better handled -- * by a special case. -- */ -- --static yaffs_Tnode *yaffs_PruneWorker(yaffs_Device *dev, yaffs_Tnode *tn, -- __u32 level, int del0) --{ -- int i; -- int hasData; -- -- if (tn) { -- hasData = 0; -- -- for (i = 0; i < YAFFS_NTNODES_INTERNAL; i++) { -- if (tn->internal[i] && level > 0) { -- tn->internal[i] = -- yaffs_PruneWorker(dev, tn->internal[i], -- level - 1, -- (i == 0) ? del0 : 1); -- } -- -- if (tn->internal[i]) -- hasData++; -- } -- -- if (hasData == 0 && del0) { -- /* Free and return NULL */ -- -- yaffs_FreeTnode(dev, tn); -- tn = NULL; -- } -- -- } -- -- return tn; -- --} -- --static int yaffs_PruneFileStructure(yaffs_Device *dev, -- yaffs_FileStructure *fStruct) --{ -- int i; -- int hasData; -- int done = 0; -- yaffs_Tnode *tn; -- -- if (fStruct->topLevel > 0) { -- fStruct->top = -- yaffs_PruneWorker(dev, fStruct->top, fStruct->topLevel, 0); -- -- /* Now we have a tree with all the non-zero branches NULL but the height -- * is the same as it was. -- * Let's see if we can trim internal tnodes to shorten the tree. -- * We can do this if only the 0th element in the tnode is in use -- * (ie all the non-zero are NULL) -- */ -- -- while (fStruct->topLevel && !done) { -- tn = fStruct->top; -- -- hasData = 0; -- for (i = 1; i < YAFFS_NTNODES_INTERNAL; i++) { -- if (tn->internal[i]) -- hasData++; -- } -- -- if (!hasData) { -- fStruct->top = tn->internal[0]; -- fStruct->topLevel--; -- yaffs_FreeTnode(dev, tn); -- } else { -- done = 1; -- } -- } -- } -- -- return YAFFS_OK; --} -- --/*-------------------- End of File Structure functions.-------------------*/ -- --/* yaffs_CreateFreeObjects creates a bunch more objects and -- * adds them to the object free list. -- */ --static int yaffs_CreateFreeObjects(yaffs_Device *dev, int nObjects) --{ -- int i; -- yaffs_Object *newObjects; -- yaffs_ObjectList *list; -- -- if (nObjects < 1) -- return YAFFS_OK; -- -- /* make these things */ -- newObjects = YMALLOC(nObjects * sizeof(yaffs_Object)); -- list = YMALLOC(sizeof(yaffs_ObjectList)); -- -- if (!newObjects || !list) { -- if (newObjects) -- YFREE(newObjects); -- if (list) -- YFREE(list); -- T(YAFFS_TRACE_ALLOCATE, -- (TSTR("yaffs: Could not allocate more objects" TENDSTR))); -- return YAFFS_FAIL; -- } -- -- /* Hook them into the free list */ -- for (i = 0; i < nObjects - 1; i++) { -- newObjects[i].siblings.next = -- (struct ylist_head *)(&newObjects[i + 1]); -- } -- -- newObjects[nObjects - 1].siblings.next = (void *)dev->freeObjects; -- dev->freeObjects = newObjects; -- dev->nFreeObjects += nObjects; -- dev->nObjectsCreated += nObjects; -- -- /* Now add this bunch of Objects to a list for freeing up. */ -- -- list->objects = newObjects; -- list->next = dev->allocatedObjectList; -- dev->allocatedObjectList = list; -- -- return YAFFS_OK; --} -- -- --/* AllocateEmptyObject gets us a clean Object. Tries to make allocate more if we run out */ --static yaffs_Object *yaffs_AllocateEmptyObject(yaffs_Device *dev) --{ -- yaffs_Object *tn = NULL; -- --#ifdef VALGRIND_TEST -- tn = YMALLOC(sizeof(yaffs_Object)); --#else -- /* If there are none left make more */ -- if (!dev->freeObjects) -- yaffs_CreateFreeObjects(dev, YAFFS_ALLOCATION_NOBJECTS); -- -- if (dev->freeObjects) { -- tn = dev->freeObjects; -- dev->freeObjects = -- (yaffs_Object *) (dev->freeObjects->siblings.next); -- dev->nFreeObjects--; -- } --#endif -- if (tn) { -- /* Now sweeten it up... */ -- -- memset(tn, 0, sizeof(yaffs_Object)); -- tn->beingCreated = 1; -- -- tn->myDev = dev; -- tn->hdrChunk = 0; -- tn->variantType = YAFFS_OBJECT_TYPE_UNKNOWN; -- YINIT_LIST_HEAD(&(tn->hardLinks)); -- YINIT_LIST_HEAD(&(tn->hashLink)); -- YINIT_LIST_HEAD(&tn->siblings); -- -- -- /* Now make the directory sane */ -- if (dev->rootDir) { -- tn->parent = dev->rootDir; -- ylist_add(&(tn->siblings), &dev->rootDir->variant.directoryVariant.children); -- } -- -- /* Add it to the lost and found directory. -- * NB Can't put root or lostNFound in lostNFound so -- * check if lostNFound exists first -- */ -- if (dev->lostNFoundDir) -- yaffs_AddObjectToDirectory(dev->lostNFoundDir, tn); -- -- tn->beingCreated = 0; -- } -- -- dev->nCheckpointBlocksRequired = 0; /* force recalculation*/ -- -- return tn; --} -- --static yaffs_Object *yaffs_CreateFakeDirectory(yaffs_Device *dev, int number, -- __u32 mode) --{ -- -- yaffs_Object *obj = -- yaffs_CreateNewObject(dev, number, YAFFS_OBJECT_TYPE_DIRECTORY); -- if (obj) { -- obj->fake = 1; /* it is fake so it might have no NAND presence... */ -- obj->renameAllowed = 0; /* ... and we're not allowed to rename it... */ -- obj->unlinkAllowed = 0; /* ... or unlink it */ -- obj->deleted = 0; -- obj->unlinked = 0; -- obj->yst_mode = mode; -- obj->myDev = dev; -- obj->hdrChunk = 0; /* Not a valid chunk. */ -- } -- -- return obj; -- --} -- --static void yaffs_UnhashObject(yaffs_Object *tn) --{ -- int bucket; -- yaffs_Device *dev = tn->myDev; -- -- /* If it is still linked into the bucket list, free from the list */ -- if (!ylist_empty(&tn->hashLink)) { -- ylist_del_init(&tn->hashLink); -- bucket = yaffs_HashFunction(tn->objectId); -- dev->objectBucket[bucket].count--; -- } --} -- --/* FreeObject frees up a Object and puts it back on the free list */ --static void yaffs_FreeObject(yaffs_Object *tn) --{ -- yaffs_Device *dev = tn->myDev; -- --#ifdef __KERNEL__ -- T(YAFFS_TRACE_OS, (TSTR("FreeObject %p inode %p"TENDSTR), tn, tn->myInode)); --#endif -- -- if (tn->parent) -- YBUG(); -- if (!ylist_empty(&tn->siblings)) -- YBUG(); -- -- --#ifdef __KERNEL__ -- if (tn->myInode) { -- /* We're still hooked up to a cached inode. -- * Don't delete now, but mark for later deletion -- */ -- tn->deferedFree = 1; -- return; -- } --#endif -- -- yaffs_UnhashObject(tn); -- --#ifdef VALGRIND_TEST -- YFREE(tn); --#else -- /* Link into the free list. */ -- tn->siblings.next = (struct ylist_head *)(dev->freeObjects); -- dev->freeObjects = tn; -- dev->nFreeObjects++; --#endif -- dev->nCheckpointBlocksRequired = 0; /* force recalculation*/ --} -- --#ifdef __KERNEL__ -- --void yaffs_HandleDeferedFree(yaffs_Object *obj) --{ -- if (obj->deferedFree) -- yaffs_FreeObject(obj); --} -- --#endif -- --static void yaffs_DeinitialiseObjects(yaffs_Device *dev) --{ -- /* Free the list of allocated Objects */ -- -- yaffs_ObjectList *tmp; -- -- while (dev->allocatedObjectList) { -- tmp = dev->allocatedObjectList->next; -- YFREE(dev->allocatedObjectList->objects); -- YFREE(dev->allocatedObjectList); -- -- dev->allocatedObjectList = tmp; -- } -- -- dev->freeObjects = NULL; -- dev->nFreeObjects = 0; --} -- --static void yaffs_InitialiseObjects(yaffs_Device *dev) --{ -- int i; -- -- dev->allocatedObjectList = NULL; -- dev->freeObjects = NULL; -- dev->nFreeObjects = 0; -- -- for (i = 0; i < YAFFS_NOBJECT_BUCKETS; i++) { -- YINIT_LIST_HEAD(&dev->objectBucket[i].list); -- dev->objectBucket[i].count = 0; -- } --} -- --static int yaffs_FindNiceObjectBucket(yaffs_Device *dev) --{ -- static int x; -- int i; -- int l = 999; -- int lowest = 999999; -- -- /* First let's see if we can find one that's empty. */ -- -- for (i = 0; i < 10 && lowest > 0; i++) { -- x++; -- x %= YAFFS_NOBJECT_BUCKETS; -- if (dev->objectBucket[x].count < lowest) { -- lowest = dev->objectBucket[x].count; -- l = x; -- } -- -- } -- -- /* If we didn't find an empty list, then try -- * looking a bit further for a short one -- */ -- -- for (i = 0; i < 10 && lowest > 3; i++) { -- x++; -- x %= YAFFS_NOBJECT_BUCKETS; -- if (dev->objectBucket[x].count < lowest) { -- lowest = dev->objectBucket[x].count; -- l = x; -- } -- -- } -- -- return l; --} -- --static int yaffs_CreateNewObjectNumber(yaffs_Device *dev) --{ -- int bucket = yaffs_FindNiceObjectBucket(dev); -- -- /* Now find an object value that has not already been taken -- * by scanning the list. -- */ -- -- int found = 0; -- struct ylist_head *i; -- -- __u32 n = (__u32) bucket; -- -- /* yaffs_CheckObjectHashSanity(); */ -- -- while (!found) { -- found = 1; -- n += YAFFS_NOBJECT_BUCKETS; -- if (1 || dev->objectBucket[bucket].count > 0) { -- ylist_for_each(i, &dev->objectBucket[bucket].list) { -- /* If there is already one in the list */ -- if (i && ylist_entry(i, yaffs_Object, -- hashLink)->objectId == n) { -- found = 0; -- } -- } -- } -- } -- -- return n; --} -- --static void yaffs_HashObject(yaffs_Object *in) --{ -- int bucket = yaffs_HashFunction(in->objectId); -- yaffs_Device *dev = in->myDev; -- -- ylist_add(&in->hashLink, &dev->objectBucket[bucket].list); -- dev->objectBucket[bucket].count++; --} -- --yaffs_Object *yaffs_FindObjectByNumber(yaffs_Device *dev, __u32 number) --{ -- int bucket = yaffs_HashFunction(number); -- struct ylist_head *i; -- yaffs_Object *in; -- -- ylist_for_each(i, &dev->objectBucket[bucket].list) { -- /* Look if it is in the list */ -- if (i) { -- in = ylist_entry(i, yaffs_Object, hashLink); -- if (in->objectId == number) { --#ifdef __KERNEL__ -- /* Don't tell the VFS about this one if it is defered free */ -- if (in->deferedFree) -- return NULL; --#endif -- -- return in; -- } -- } -- } -- -- return NULL; --} -- --yaffs_Object *yaffs_CreateNewObject(yaffs_Device *dev, int number, -- yaffs_ObjectType type) --{ -- yaffs_Object *theObject; -- yaffs_Tnode *tn = NULL; -- -- if (number < 0) -- number = yaffs_CreateNewObjectNumber(dev); -- -- theObject = yaffs_AllocateEmptyObject(dev); -- if (!theObject) -- return NULL; -- -- if (type == YAFFS_OBJECT_TYPE_FILE) { -- tn = yaffs_GetTnode(dev); -- if (!tn) { -- yaffs_FreeObject(theObject); -- return NULL; -- } -- } -- -- if (theObject) { -- theObject->fake = 0; -- theObject->renameAllowed = 1; -- theObject->unlinkAllowed = 1; -- theObject->objectId = number; -- yaffs_HashObject(theObject); -- theObject->variantType = type; --#ifdef CONFIG_YAFFS_WINCE -- yfsd_WinFileTimeNow(theObject->win_atime); -- theObject->win_ctime[0] = theObject->win_mtime[0] = -- theObject->win_atime[0]; -- theObject->win_ctime[1] = theObject->win_mtime[1] = -- theObject->win_atime[1]; -- --#else -- -- theObject->yst_atime = theObject->yst_mtime = -- theObject->yst_ctime = Y_CURRENT_TIME; --#endif -- switch (type) { -- case YAFFS_OBJECT_TYPE_FILE: -- theObject->variant.fileVariant.fileSize = 0; -- theObject->variant.fileVariant.scannedFileSize = 0; -- theObject->variant.fileVariant.shrinkSize = 0xFFFFFFFF; /* max __u32 */ -- theObject->variant.fileVariant.topLevel = 0; -- theObject->variant.fileVariant.top = tn; -- break; -- case YAFFS_OBJECT_TYPE_DIRECTORY: -- YINIT_LIST_HEAD(&theObject->variant.directoryVariant. -- children); -- break; -- case YAFFS_OBJECT_TYPE_SYMLINK: -- case YAFFS_OBJECT_TYPE_HARDLINK: -- case YAFFS_OBJECT_TYPE_SPECIAL: -- /* No action required */ -- break; -- case YAFFS_OBJECT_TYPE_UNKNOWN: -- /* todo this should not happen */ -- break; -- } -- } -- -- return theObject; --} -- --static yaffs_Object *yaffs_FindOrCreateObjectByNumber(yaffs_Device *dev, -- int number, -- yaffs_ObjectType type) --{ -- yaffs_Object *theObject = NULL; -- -- if (number > 0) -- theObject = yaffs_FindObjectByNumber(dev, number); -- -- if (!theObject) -- theObject = yaffs_CreateNewObject(dev, number, type); -- -- return theObject; -- --} -- -- --static YCHAR *yaffs_CloneString(const YCHAR *str) --{ -- YCHAR *newStr = NULL; -- -- if (str && *str) { -- newStr = YMALLOC((yaffs_strlen(str) + 1) * sizeof(YCHAR)); -- if (newStr) -- yaffs_strcpy(newStr, str); -- } -- -- return newStr; -- --} -- --/* -- * Mknod (create) a new object. -- * equivalentObject only has meaning for a hard link; -- * aliasString only has meaning for a sumlink. -- * rdev only has meaning for devices (a subset of special objects) -- */ -- --static yaffs_Object *yaffs_MknodObject(yaffs_ObjectType type, -- yaffs_Object *parent, -- const YCHAR *name, -- __u32 mode, -- __u32 uid, -- __u32 gid, -- yaffs_Object *equivalentObject, -- const YCHAR *aliasString, __u32 rdev) --{ -- yaffs_Object *in; -- YCHAR *str = NULL; -- -- yaffs_Device *dev = parent->myDev; -- -- /* Check if the entry exists. If it does then fail the call since we don't want a dup.*/ -- if (yaffs_FindObjectByName(parent, name)) -- return NULL; -- -- in = yaffs_CreateNewObject(dev, -1, type); -- -- if (!in) -- return YAFFS_FAIL; -- -- if (type == YAFFS_OBJECT_TYPE_SYMLINK) { -- str = yaffs_CloneString(aliasString); -- if (!str) { -- yaffs_FreeObject(in); -- return NULL; -- } -- } -- -- -- -- if (in) { -- in->hdrChunk = 0; -- in->valid = 1; -- in->variantType = type; -- -- in->yst_mode = mode; -- --#ifdef CONFIG_YAFFS_WINCE -- yfsd_WinFileTimeNow(in->win_atime); -- in->win_ctime[0] = in->win_mtime[0] = in->win_atime[0]; -- in->win_ctime[1] = in->win_mtime[1] = in->win_atime[1]; -- --#else -- in->yst_atime = in->yst_mtime = in->yst_ctime = Y_CURRENT_TIME; -- -- in->yst_rdev = rdev; -- in->yst_uid = uid; -- in->yst_gid = gid; --#endif -- in->nDataChunks = 0; -- -- yaffs_SetObjectName(in, name); -- in->dirty = 1; -- -- yaffs_AddObjectToDirectory(parent, in); -- -- in->myDev = parent->myDev; -- -- switch (type) { -- case YAFFS_OBJECT_TYPE_SYMLINK: -- in->variant.symLinkVariant.alias = str; -- break; -- case YAFFS_OBJECT_TYPE_HARDLINK: -- in->variant.hardLinkVariant.equivalentObject = -- equivalentObject; -- in->variant.hardLinkVariant.equivalentObjectId = -- equivalentObject->objectId; -- ylist_add(&in->hardLinks, &equivalentObject->hardLinks); -- break; -- case YAFFS_OBJECT_TYPE_FILE: -- case YAFFS_OBJECT_TYPE_DIRECTORY: -- case YAFFS_OBJECT_TYPE_SPECIAL: -- case YAFFS_OBJECT_TYPE_UNKNOWN: -- /* do nothing */ -- break; -- } -- -- if (yaffs_UpdateObjectHeader(in, name, 0, 0, 0) < 0) { -- /* Could not create the object header, fail the creation */ -- yaffs_DeleteObject(in); -- in = NULL; -- } -- -- } -- -- return in; --} -- --yaffs_Object *yaffs_MknodFile(yaffs_Object *parent, const YCHAR *name, -- __u32 mode, __u32 uid, __u32 gid) --{ -- return yaffs_MknodObject(YAFFS_OBJECT_TYPE_FILE, parent, name, mode, -- uid, gid, NULL, NULL, 0); --} -- --yaffs_Object *yaffs_MknodDirectory(yaffs_Object *parent, const YCHAR *name, -- __u32 mode, __u32 uid, __u32 gid) --{ -- return yaffs_MknodObject(YAFFS_OBJECT_TYPE_DIRECTORY, parent, name, -- mode, uid, gid, NULL, NULL, 0); --} -- --yaffs_Object *yaffs_MknodSpecial(yaffs_Object *parent, const YCHAR *name, -- __u32 mode, __u32 uid, __u32 gid, __u32 rdev) --{ -- return yaffs_MknodObject(YAFFS_OBJECT_TYPE_SPECIAL, parent, name, mode, -- uid, gid, NULL, NULL, rdev); --} -- --yaffs_Object *yaffs_MknodSymLink(yaffs_Object *parent, const YCHAR *name, -- __u32 mode, __u32 uid, __u32 gid, -- const YCHAR *alias) --{ -- return yaffs_MknodObject(YAFFS_OBJECT_TYPE_SYMLINK, parent, name, mode, -- uid, gid, NULL, alias, 0); --} -- --/* yaffs_Link returns the object id of the equivalent object.*/ --yaffs_Object *yaffs_Link(yaffs_Object *parent, const YCHAR *name, -- yaffs_Object *equivalentObject) --{ -- /* Get the real object in case we were fed a hard link as an equivalent object */ -- equivalentObject = yaffs_GetEquivalentObject(equivalentObject); -- -- if (yaffs_MknodObject -- (YAFFS_OBJECT_TYPE_HARDLINK, parent, name, 0, 0, 0, -- equivalentObject, NULL, 0)) { -- return equivalentObject; -- } else { -- return NULL; -- } -- --} -- --static int yaffs_ChangeObjectName(yaffs_Object *obj, yaffs_Object *newDir, -- const YCHAR *newName, int force, int shadows) --{ -- int unlinkOp; -- int deleteOp; -- -- yaffs_Object *existingTarget; -- -- if (newDir == NULL) -- newDir = obj->parent; /* use the old directory */ -- -- if (newDir->variantType != YAFFS_OBJECT_TYPE_DIRECTORY) { -- T(YAFFS_TRACE_ALWAYS, -- (TSTR -- ("tragedy: yaffs_ChangeObjectName: newDir is not a directory" -- TENDSTR))); -- YBUG(); -- } -- -- /* TODO: Do we need this different handling for YAFFS2 and YAFFS1?? */ -- if (obj->myDev->isYaffs2) -- unlinkOp = (newDir == obj->myDev->unlinkedDir); -- else -- unlinkOp = (newDir == obj->myDev->unlinkedDir -- && obj->variantType == YAFFS_OBJECT_TYPE_FILE); -- -- deleteOp = (newDir == obj->myDev->deletedDir); -- -- existingTarget = yaffs_FindObjectByName(newDir, newName); -- -- /* If the object is a file going into the unlinked directory, -- * then it is OK to just stuff it in since duplicate names are allowed. -- * else only proceed if the new name does not exist and if we're putting -- * it into a directory. -- */ -- if ((unlinkOp || -- deleteOp || -- force || -- (shadows > 0) || -- !existingTarget) && -- newDir->variantType == YAFFS_OBJECT_TYPE_DIRECTORY) { -- yaffs_SetObjectName(obj, newName); -- obj->dirty = 1; -- -- yaffs_AddObjectToDirectory(newDir, obj); -- -- if (unlinkOp) -- obj->unlinked = 1; -- -- /* If it is a deletion then we mark it as a shrink for gc purposes. */ -- if (yaffs_UpdateObjectHeader(obj, newName, 0, deleteOp, shadows) >= 0) -- return YAFFS_OK; -- } -- -- return YAFFS_FAIL; --} -- --int yaffs_RenameObject(yaffs_Object *oldDir, const YCHAR *oldName, -- yaffs_Object *newDir, const YCHAR *newName) --{ -- yaffs_Object *obj = NULL; -- yaffs_Object *existingTarget = NULL; -- int force = 0; -- -- -- if (!oldDir || oldDir->variantType != YAFFS_OBJECT_TYPE_DIRECTORY) -- YBUG(); -- if (!newDir || newDir->variantType != YAFFS_OBJECT_TYPE_DIRECTORY) -- YBUG(); -- --#ifdef CONFIG_YAFFS_CASE_INSENSITIVE -- /* Special case for case insemsitive systems (eg. WinCE). -- * While look-up is case insensitive, the name isn't. -- * Therefore we might want to change x.txt to X.txt -- */ -- if (oldDir == newDir && yaffs_strcmp(oldName, newName) == 0) -- force = 1; --#endif -- -- else if (yaffs_strlen(newName) > YAFFS_MAX_NAME_LENGTH) -- /* ENAMETOOLONG */ -- return YAFFS_FAIL; -- -- obj = yaffs_FindObjectByName(oldDir, oldName); -- -- if (obj && obj->renameAllowed) { -- -- /* Now do the handling for an existing target, if there is one */ -- -- existingTarget = yaffs_FindObjectByName(newDir, newName); -- if (existingTarget && -- existingTarget->variantType == YAFFS_OBJECT_TYPE_DIRECTORY && -- !ylist_empty(&existingTarget->variant.directoryVariant.children)) { -- /* There is a target that is a non-empty directory, so we fail */ -- return YAFFS_FAIL; /* EEXIST or ENOTEMPTY */ -- } else if (existingTarget && existingTarget != obj) { -- /* Nuke the target first, using shadowing, -- * but only if it isn't the same object -- */ -- yaffs_ChangeObjectName(obj, newDir, newName, force, -- existingTarget->objectId); -- yaffs_UnlinkObject(existingTarget); -- } -- -- return yaffs_ChangeObjectName(obj, newDir, newName, 1, 0); -- } -- return YAFFS_FAIL; --} -- --/*------------------------- Block Management and Page Allocation ----------------*/ -- --static int yaffs_InitialiseBlocks(yaffs_Device *dev) --{ -- int nBlocks = dev->internalEndBlock - dev->internalStartBlock + 1; -- -- dev->blockInfo = NULL; -- dev->chunkBits = NULL; -- -- dev->allocationBlock = -1; /* force it to get a new one */ -- -- /* If the first allocation strategy fails, thry the alternate one */ -- dev->blockInfo = YMALLOC(nBlocks * sizeof(yaffs_BlockInfo)); -- if (!dev->blockInfo) { -- dev->blockInfo = YMALLOC_ALT(nBlocks * sizeof(yaffs_BlockInfo)); -- dev->blockInfoAlt = 1; -- } else -- dev->blockInfoAlt = 0; -- -- if (dev->blockInfo) { -- /* Set up dynamic blockinfo stuff. */ -- dev->chunkBitmapStride = (dev->nChunksPerBlock + 7) / 8; /* round up bytes */ -- dev->chunkBits = YMALLOC(dev->chunkBitmapStride * nBlocks); -- if (!dev->chunkBits) { -- dev->chunkBits = YMALLOC_ALT(dev->chunkBitmapStride * nBlocks); -- dev->chunkBitsAlt = 1; -- } else -- dev->chunkBitsAlt = 0; -- } -- -- if (dev->blockInfo && dev->chunkBits) { -- memset(dev->blockInfo, 0, nBlocks * sizeof(yaffs_BlockInfo)); -- memset(dev->chunkBits, 0, dev->chunkBitmapStride * nBlocks); -- return YAFFS_OK; -- } -- -- return YAFFS_FAIL; --} -- --static void yaffs_DeinitialiseBlocks(yaffs_Device *dev) --{ -- if (dev->blockInfoAlt && dev->blockInfo) -- YFREE_ALT(dev->blockInfo); -- else if (dev->blockInfo) -- YFREE(dev->blockInfo); -- -- dev->blockInfoAlt = 0; -- -- dev->blockInfo = NULL; -- -- if (dev->chunkBitsAlt && dev->chunkBits) -- YFREE_ALT(dev->chunkBits); -- else if (dev->chunkBits) -- YFREE(dev->chunkBits); -- dev->chunkBitsAlt = 0; -- dev->chunkBits = NULL; --} -- --static int yaffs_BlockNotDisqualifiedFromGC(yaffs_Device *dev, -- yaffs_BlockInfo *bi) --{ -- int i; -- __u32 seq; -- yaffs_BlockInfo *b; -- -- if (!dev->isYaffs2) -- return 1; /* disqualification only applies to yaffs2. */ -- -- if (!bi->hasShrinkHeader) -- return 1; /* can gc */ -- -- /* Find the oldest dirty sequence number if we don't know it and save it -- * so we don't have to keep recomputing it. -- */ -- if (!dev->oldestDirtySequence) { -- seq = dev->sequenceNumber; -- -- for (i = dev->internalStartBlock; i <= dev->internalEndBlock; -- i++) { -- b = yaffs_GetBlockInfo(dev, i); -- if (b->blockState == YAFFS_BLOCK_STATE_FULL && -- (b->pagesInUse - b->softDeletions) < -- dev->nChunksPerBlock && b->sequenceNumber < seq) { -- seq = b->sequenceNumber; -- } -- } -- dev->oldestDirtySequence = seq; -- } -- -- /* Can't do gc of this block if there are any blocks older than this one that have -- * discarded pages. -- */ -- return (bi->sequenceNumber <= dev->oldestDirtySequence); --} -- --/* FindDiretiestBlock is used to select the dirtiest block (or close enough) -- * for garbage collection. -- */ -- --static int yaffs_FindBlockForGarbageCollection(yaffs_Device *dev, -- int aggressive) --{ -- int b = dev->currentDirtyChecker; -- -- int i; -- int iterations; -- int dirtiest = -1; -- int pagesInUse = 0; -- int prioritised = 0; -- yaffs_BlockInfo *bi; -- int pendingPrioritisedExist = 0; -- -- /* First let's see if we need to grab a prioritised block */ -- if (dev->hasPendingPrioritisedGCs) { -- for (i = dev->internalStartBlock; i < dev->internalEndBlock && !prioritised; i++) { -- -- bi = yaffs_GetBlockInfo(dev, i); -- /* yaffs_VerifyBlock(dev,bi,i); */ -- -- if (bi->gcPrioritise) { -- pendingPrioritisedExist = 1; -- if (bi->blockState == YAFFS_BLOCK_STATE_FULL && -- yaffs_BlockNotDisqualifiedFromGC(dev, bi)) { -- pagesInUse = (bi->pagesInUse - bi->softDeletions); -- dirtiest = i; -- prioritised = 1; -- aggressive = 1; /* Fool the non-aggressive skip logiv below */ -- } -- } -- } -- -- if (!pendingPrioritisedExist) /* None found, so we can clear this */ -- dev->hasPendingPrioritisedGCs = 0; -- } -- -- /* If we're doing aggressive GC then we are happy to take a less-dirty block, and -- * search harder. -- * else (we're doing a leasurely gc), then we only bother to do this if the -- * block has only a few pages in use. -- */ -- -- dev->nonAggressiveSkip--; -- -- if (!aggressive && (dev->nonAggressiveSkip > 0)) -- return -1; -- -- if (!prioritised) -- pagesInUse = -- (aggressive) ? dev->nChunksPerBlock : YAFFS_PASSIVE_GC_CHUNKS + 1; -- -- if (aggressive) -- iterations = -- dev->internalEndBlock - dev->internalStartBlock + 1; -- else { -- iterations = -- dev->internalEndBlock - dev->internalStartBlock + 1; -- iterations = iterations / 16; -- if (iterations > 200) -- iterations = 200; -- } -- -- for (i = 0; i <= iterations && pagesInUse > 0 && !prioritised; i++) { -- b++; -- if (b < dev->internalStartBlock || b > dev->internalEndBlock) -- b = dev->internalStartBlock; -- -- if (b < dev->internalStartBlock || b > dev->internalEndBlock) { -- T(YAFFS_TRACE_ERROR, -- (TSTR("**>> Block %d is not valid" TENDSTR), b)); -- YBUG(); -- } -- -- bi = yaffs_GetBlockInfo(dev, b); -- -- if (bi->blockState == YAFFS_BLOCK_STATE_FULL && -- (bi->pagesInUse - bi->softDeletions) < pagesInUse && -- yaffs_BlockNotDisqualifiedFromGC(dev, bi)) { -- dirtiest = b; -- pagesInUse = (bi->pagesInUse - bi->softDeletions); -- } -- } -- -- dev->currentDirtyChecker = b; -- -- if (dirtiest > 0) { -- T(YAFFS_TRACE_GC, -- (TSTR("GC Selected block %d with %d free, prioritised:%d" TENDSTR), dirtiest, -- dev->nChunksPerBlock - pagesInUse, prioritised)); -- } -- -- dev->oldestDirtySequence = 0; -- -- if (dirtiest > 0) -- dev->nonAggressiveSkip = 4; -- -- return dirtiest; --} -- --static void yaffs_BlockBecameDirty(yaffs_Device *dev, int blockNo) --{ -- yaffs_BlockInfo *bi = yaffs_GetBlockInfo(dev, blockNo); -- -- int erasedOk = 0; -- -- /* If the block is still healthy erase it and mark as clean. -- * If the block has had a data failure, then retire it. -- */ -- -- T(YAFFS_TRACE_GC | YAFFS_TRACE_ERASE, -- (TSTR("yaffs_BlockBecameDirty block %d state %d %s"TENDSTR), -- blockNo, bi->blockState, (bi->needsRetiring) ? "needs retiring" : "")); -- -- bi->blockState = YAFFS_BLOCK_STATE_DIRTY; -- -- if (!bi->needsRetiring) { -- yaffs_InvalidateCheckpoint(dev); -- erasedOk = yaffs_EraseBlockInNAND(dev, blockNo); -- if (!erasedOk) { -- dev->nErasureFailures++; -- T(YAFFS_TRACE_ERROR | YAFFS_TRACE_BAD_BLOCKS, -- (TSTR("**>> Erasure failed %d" TENDSTR), blockNo)); -- } -- } -- -- if (erasedOk && -- ((yaffs_traceMask & YAFFS_TRACE_ERASE) || !yaffs_SkipVerification(dev))) { -- int i; -- for (i = 0; i < dev->nChunksPerBlock; i++) { -- if (!yaffs_CheckChunkErased -- (dev, blockNo * dev->nChunksPerBlock + i)) { -- T(YAFFS_TRACE_ERROR, -- (TSTR -- (">>Block %d erasure supposedly OK, but chunk %d not erased" -- TENDSTR), blockNo, i)); -- } -- } -- } -- -- if (erasedOk) { -- /* Clean it up... */ -- bi->blockState = YAFFS_BLOCK_STATE_EMPTY; -- dev->nErasedBlocks++; -- bi->pagesInUse = 0; -- bi->softDeletions = 0; -- bi->hasShrinkHeader = 0; -- bi->skipErasedCheck = 1; /* This is clean, so no need to check */ -- bi->gcPrioritise = 0; -- yaffs_ClearChunkBits(dev, blockNo); -- -- T(YAFFS_TRACE_ERASE, -- (TSTR("Erased block %d" TENDSTR), blockNo)); -- } else { -- dev->nFreeChunks -= dev->nChunksPerBlock; /* We lost a block of free space */ -- -- yaffs_RetireBlock(dev, blockNo); -- T(YAFFS_TRACE_ERROR | YAFFS_TRACE_BAD_BLOCKS, -- (TSTR("**>> Block %d retired" TENDSTR), blockNo)); -- } --} -- --static int yaffs_FindBlockForAllocation(yaffs_Device *dev) --{ -- int i; -- -- yaffs_BlockInfo *bi; -- -- if (dev->nErasedBlocks < 1) { -- /* Hoosterman we've got a problem. -- * Can't get space to gc -- */ -- T(YAFFS_TRACE_ERROR, -- (TSTR("yaffs tragedy: no more erased blocks" TENDSTR))); -- -- return -1; -- } -- -- /* Find an empty block. */ -- -- for (i = dev->internalStartBlock; i <= dev->internalEndBlock; i++) { -- dev->allocationBlockFinder++; -- if (dev->allocationBlockFinder < dev->internalStartBlock -- || dev->allocationBlockFinder > dev->internalEndBlock) { -- dev->allocationBlockFinder = dev->internalStartBlock; -- } -- -- bi = yaffs_GetBlockInfo(dev, dev->allocationBlockFinder); -- -- if (bi->blockState == YAFFS_BLOCK_STATE_EMPTY) { -- bi->blockState = YAFFS_BLOCK_STATE_ALLOCATING; -- dev->sequenceNumber++; -- bi->sequenceNumber = dev->sequenceNumber; -- dev->nErasedBlocks--; -- T(YAFFS_TRACE_ALLOCATE, -- (TSTR("Allocated block %d, seq %d, %d left" TENDSTR), -- dev->allocationBlockFinder, dev->sequenceNumber, -- dev->nErasedBlocks)); -- return dev->allocationBlockFinder; -- } -- } -- -- T(YAFFS_TRACE_ALWAYS, -- (TSTR -- ("yaffs tragedy: no more erased blocks, but there should have been %d" -- TENDSTR), dev->nErasedBlocks)); -- -- return -1; --} -- -- -- --static int yaffs_CalcCheckpointBlocksRequired(yaffs_Device *dev) --{ -- if (!dev->nCheckpointBlocksRequired && -- dev->isYaffs2) { -- /* Not a valid value so recalculate */ -- int nBytes = 0; -- int nBlocks; -- int devBlocks = (dev->endBlock - dev->startBlock + 1); -- int tnodeSize; -- -- tnodeSize = (dev->tnodeWidth * YAFFS_NTNODES_LEVEL0)/8; -- -- if (tnodeSize < sizeof(yaffs_Tnode)) -- tnodeSize = sizeof(yaffs_Tnode); -- -- nBytes += sizeof(yaffs_CheckpointValidity); -- nBytes += sizeof(yaffs_CheckpointDevice); -- nBytes += devBlocks * sizeof(yaffs_BlockInfo); -- nBytes += devBlocks * dev->chunkBitmapStride; -- nBytes += (sizeof(yaffs_CheckpointObject) + sizeof(__u32)) * (dev->nObjectsCreated - dev->nFreeObjects); -- nBytes += (tnodeSize + sizeof(__u32)) * (dev->nTnodesCreated - dev->nFreeTnodes); -- nBytes += sizeof(yaffs_CheckpointValidity); -- nBytes += sizeof(__u32); /* checksum*/ -- -- /* Round up and add 2 blocks to allow for some bad blocks, so add 3 */ -- -- nBlocks = (nBytes/(dev->nDataBytesPerChunk * dev->nChunksPerBlock)) + 3; -- -- dev->nCheckpointBlocksRequired = nBlocks; -- } -- -- return dev->nCheckpointBlocksRequired; --} -- --/* -- * Check if there's space to allocate... -- * Thinks.... do we need top make this ths same as yaffs_GetFreeChunks()? -- */ --static int yaffs_CheckSpaceForAllocation(yaffs_Device *dev) --{ -- int reservedChunks; -- int reservedBlocks = dev->nReservedBlocks; -- int checkpointBlocks; -- -- if (dev->isYaffs2) { -- checkpointBlocks = yaffs_CalcCheckpointBlocksRequired(dev) - -- dev->blocksInCheckpoint; -- if (checkpointBlocks < 0) -- checkpointBlocks = 0; -- } else { -- checkpointBlocks = 0; -- } -- -- reservedChunks = ((reservedBlocks + checkpointBlocks) * dev->nChunksPerBlock); -- -- return (dev->nFreeChunks > reservedChunks); --} -- --static int yaffs_AllocateChunk(yaffs_Device *dev, int useReserve, -- yaffs_BlockInfo **blockUsedPtr) --{ -- int retVal; -- yaffs_BlockInfo *bi; -- -- if (dev->allocationBlock < 0) { -- /* Get next block to allocate off */ -- dev->allocationBlock = yaffs_FindBlockForAllocation(dev); -- dev->allocationPage = 0; -- } -- -- if (!useReserve && !yaffs_CheckSpaceForAllocation(dev)) { -- /* Not enough space to allocate unless we're allowed to use the reserve. */ -- return -1; -- } -- -- if (dev->nErasedBlocks < dev->nReservedBlocks -- && dev->allocationPage == 0) { -- T(YAFFS_TRACE_ALLOCATE, (TSTR("Allocating reserve" TENDSTR))); -- } -- -- /* Next page please.... */ -- if (dev->allocationBlock >= 0) { -- bi = yaffs_GetBlockInfo(dev, dev->allocationBlock); -- -- retVal = (dev->allocationBlock * dev->nChunksPerBlock) + -- dev->allocationPage; -- bi->pagesInUse++; -- yaffs_SetChunkBit(dev, dev->allocationBlock, -- dev->allocationPage); -- -- dev->allocationPage++; -- -- dev->nFreeChunks--; -- -- /* If the block is full set the state to full */ -- if (dev->allocationPage >= dev->nChunksPerBlock) { -- bi->blockState = YAFFS_BLOCK_STATE_FULL; -- dev->allocationBlock = -1; -- } -- -- if (blockUsedPtr) -- *blockUsedPtr = bi; -- -- return retVal; -- } -- -- T(YAFFS_TRACE_ERROR, -- (TSTR("!!!!!!!!! Allocator out !!!!!!!!!!!!!!!!!" TENDSTR))); -- -- return -1; --} -- --static int yaffs_GetErasedChunks(yaffs_Device *dev) --{ -- int n; -- -- n = dev->nErasedBlocks * dev->nChunksPerBlock; -- -- if (dev->allocationBlock > 0) -- n += (dev->nChunksPerBlock - dev->allocationPage); -- -- return n; -- --} -- --static int yaffs_GarbageCollectBlock(yaffs_Device *dev, int block, -- int wholeBlock) --{ -- int oldChunk; -- int newChunk; -- int markNAND; -- int retVal = YAFFS_OK; -- int cleanups = 0; -- int i; -- int isCheckpointBlock; -- int matchingChunk; -- int maxCopies; -- -- int chunksBefore = yaffs_GetErasedChunks(dev); -- int chunksAfter; -- -- yaffs_ExtendedTags tags; -- -- yaffs_BlockInfo *bi = yaffs_GetBlockInfo(dev, block); -- -- yaffs_Object *object; -- -- isCheckpointBlock = (bi->blockState == YAFFS_BLOCK_STATE_CHECKPOINT); -- -- bi->blockState = YAFFS_BLOCK_STATE_COLLECTING; -- -- T(YAFFS_TRACE_TRACING, -- (TSTR("Collecting block %d, in use %d, shrink %d, wholeBlock %d" TENDSTR), -- block, -- bi->pagesInUse, -- bi->hasShrinkHeader, -- wholeBlock)); -- -- /*yaffs_VerifyFreeChunks(dev); */ -- -- bi->hasShrinkHeader = 0; /* clear the flag so that the block can erase */ -- -- /* Take off the number of soft deleted entries because -- * they're going to get really deleted during GC. -- */ -- dev->nFreeChunks -= bi->softDeletions; -- -- dev->isDoingGC = 1; -- -- if (isCheckpointBlock || -- !yaffs_StillSomeChunkBits(dev, block)) { -- T(YAFFS_TRACE_TRACING, -- (TSTR -- ("Collecting block %d that has no chunks in use" TENDSTR), -- block)); -- yaffs_BlockBecameDirty(dev, block); -- } else { -- -- __u8 *buffer = yaffs_GetTempBuffer(dev, __LINE__); -- -- yaffs_VerifyBlock(dev, bi, block); -- -- maxCopies = (wholeBlock) ? dev->nChunksPerBlock : 10; -- oldChunk = block * dev->nChunksPerBlock + dev->gcChunk; -- -- for (/* init already done */; -- retVal == YAFFS_OK && -- dev->gcChunk < dev->nChunksPerBlock && -- (bi->blockState == YAFFS_BLOCK_STATE_COLLECTING) && -- maxCopies > 0; -- dev->gcChunk++, oldChunk++) { -- if (yaffs_CheckChunkBit(dev, block, dev->gcChunk)) { -- -- /* This page is in use and might need to be copied off */ -- -- maxCopies--; -- -- markNAND = 1; -- -- yaffs_InitialiseTags(&tags); -- -- yaffs_ReadChunkWithTagsFromNAND(dev, oldChunk, -- buffer, &tags); -- -- object = -- yaffs_FindObjectByNumber(dev, -- tags.objectId); -- -- T(YAFFS_TRACE_GC_DETAIL, -- (TSTR -- ("Collecting chunk in block %d, %d %d %d " TENDSTR), -- dev->gcChunk, tags.objectId, tags.chunkId, -- tags.byteCount)); -- -- if (object && !yaffs_SkipVerification(dev)) { -- if (tags.chunkId == 0) -- matchingChunk = object->hdrChunk; -- else if (object->softDeleted) -- matchingChunk = oldChunk; /* Defeat the test */ -- else -- matchingChunk = yaffs_FindChunkInFile(object, tags.chunkId, NULL); -- -- if (oldChunk != matchingChunk) -- T(YAFFS_TRACE_ERROR, -- (TSTR("gc: page in gc mismatch: %d %d %d %d"TENDSTR), -- oldChunk, matchingChunk, tags.objectId, tags.chunkId)); -- -- } -- -- if (!object) { -- T(YAFFS_TRACE_ERROR, -- (TSTR -- ("page %d in gc has no object: %d %d %d " -- TENDSTR), oldChunk, -- tags.objectId, tags.chunkId, tags.byteCount)); -- } -- -- if (object && -- object->deleted && -- object->softDeleted && -- tags.chunkId != 0) { -- /* Data chunk in a soft deleted file, throw it away -- * It's a soft deleted data chunk, -- * No need to copy this, just forget about it and -- * fix up the object. -- */ -- -- object->nDataChunks--; -- -- if (object->nDataChunks <= 0) { -- /* remeber to clean up the object */ -- dev->gcCleanupList[cleanups] = -- tags.objectId; -- cleanups++; -- } -- markNAND = 0; -- } else if (0) { -- /* Todo object && object->deleted && object->nDataChunks == 0 */ -- /* Deleted object header with no data chunks. -- * Can be discarded and the file deleted. -- */ -- object->hdrChunk = 0; -- yaffs_FreeTnode(object->myDev, -- object->variant. -- fileVariant.top); -- object->variant.fileVariant.top = NULL; -- yaffs_DoGenericObjectDeletion(object); -- -- } else if (object) { -- /* It's either a data chunk in a live file or -- * an ObjectHeader, so we're interested in it. -- * NB Need to keep the ObjectHeaders of deleted files -- * until the whole file has been deleted off -- */ -- tags.serialNumber++; -- -- dev->nGCCopies++; -- -- if (tags.chunkId == 0) { -- /* It is an object Id, -- * We need to nuke the shrinkheader flags first -- * We no longer want the shrinkHeader flag since its work is done -- * and if it is left in place it will mess up scanning. -- */ -- -- yaffs_ObjectHeader *oh; -- oh = (yaffs_ObjectHeader *)buffer; -- oh->isShrink = 0; -- tags.extraIsShrinkHeader = 0; -- -- yaffs_VerifyObjectHeader(object, oh, &tags, 1); -- } -- -- newChunk = -- yaffs_WriteNewChunkWithTagsToNAND(dev, buffer, &tags, 1); -- -- if (newChunk < 0) { -- retVal = YAFFS_FAIL; -- } else { -- -- /* Ok, now fix up the Tnodes etc. */ -- -- if (tags.chunkId == 0) { -- /* It's a header */ -- object->hdrChunk = newChunk; -- object->serial = tags.serialNumber; -- } else { -- /* It's a data chunk */ -- yaffs_PutChunkIntoFile -- (object, -- tags.chunkId, -- newChunk, 0); -- } -- } -- } -- -- if (retVal == YAFFS_OK) -- yaffs_DeleteChunk(dev, oldChunk, markNAND, __LINE__); -- -- } -- } -- -- yaffs_ReleaseTempBuffer(dev, buffer, __LINE__); -- -- -- /* Do any required cleanups */ -- for (i = 0; i < cleanups; i++) { -- /* Time to delete the file too */ -- object = -- yaffs_FindObjectByNumber(dev, -- dev->gcCleanupList[i]); -- if (object) { -- yaffs_FreeTnode(dev, -- object->variant.fileVariant. -- top); -- object->variant.fileVariant.top = NULL; -- T(YAFFS_TRACE_GC, -- (TSTR -- ("yaffs: About to finally delete object %d" -- TENDSTR), object->objectId)); -- yaffs_DoGenericObjectDeletion(object); -- object->myDev->nDeletedFiles--; -- } -- -- } -- -- } -- -- yaffs_VerifyCollectedBlock(dev, bi, block); -- -- chunksAfter = yaffs_GetErasedChunks(dev); -- if (chunksBefore >= chunksAfter) { -- T(YAFFS_TRACE_GC, -- (TSTR -- ("gc did not increase free chunks before %d after %d" -- TENDSTR), chunksBefore, chunksAfter)); -- } -- -- /* If the gc completed then clear the current gcBlock so that we find another. */ -- if (bi->blockState != YAFFS_BLOCK_STATE_COLLECTING) { -- dev->gcBlock = -1; -- dev->gcChunk = 0; -- } -- -- dev->isDoingGC = 0; -- -- return retVal; --} -- --/* New garbage collector -- * If we're very low on erased blocks then we do aggressive garbage collection -- * otherwise we do "leasurely" garbage collection. -- * Aggressive gc looks further (whole array) and will accept less dirty blocks. -- * Passive gc only inspects smaller areas and will only accept more dirty blocks. -- * -- * The idea is to help clear out space in a more spread-out manner. -- * Dunno if it really does anything useful. -- */ --static int yaffs_CheckGarbageCollection(yaffs_Device *dev) --{ -- int block; -- int aggressive; -- int gcOk = YAFFS_OK; -- int maxTries = 0; -- -- int checkpointBlockAdjust; -- -- if (dev->isDoingGC) { -- /* Bail out so we don't get recursive gc */ -- return YAFFS_OK; -- } -- -- /* This loop should pass the first time. -- * We'll only see looping here if the erase of the collected block fails. -- */ -- -- do { -- maxTries++; -- -- checkpointBlockAdjust = yaffs_CalcCheckpointBlocksRequired(dev) - dev->blocksInCheckpoint; -- if (checkpointBlockAdjust < 0) -- checkpointBlockAdjust = 0; -- -- if (dev->nErasedBlocks < (dev->nReservedBlocks + checkpointBlockAdjust + 2)) { -- /* We need a block soon...*/ -- aggressive = 1; -- } else { -- /* We're in no hurry */ -- aggressive = 0; -- } -- -- if (dev->gcBlock <= 0) { -- dev->gcBlock = yaffs_FindBlockForGarbageCollection(dev, aggressive); -- dev->gcChunk = 0; -- } -- -- block = dev->gcBlock; -- -- if (block > 0) { -- dev->garbageCollections++; -- if (!aggressive) -- dev->passiveGarbageCollections++; -- -- T(YAFFS_TRACE_GC, -- (TSTR -- ("yaffs: GC erasedBlocks %d aggressive %d" TENDSTR), -- dev->nErasedBlocks, aggressive)); -- -- gcOk = yaffs_GarbageCollectBlock(dev, block, aggressive); -- } -- -- if (dev->nErasedBlocks < (dev->nReservedBlocks) && block > 0) { -- T(YAFFS_TRACE_GC, -- (TSTR -- ("yaffs: GC !!!no reclaim!!! erasedBlocks %d after try %d block %d" -- TENDSTR), dev->nErasedBlocks, maxTries, block)); -- } -- } while ((dev->nErasedBlocks < dev->nReservedBlocks) && -- (block > 0) && -- (maxTries < 2)); -- -- return aggressive ? gcOk : YAFFS_OK; --} -- --/*------------------------- TAGS --------------------------------*/ -- --static int yaffs_TagsMatch(const yaffs_ExtendedTags *tags, int objectId, -- int chunkInObject) --{ -- return (tags->chunkId == chunkInObject && -- tags->objectId == objectId && !tags->chunkDeleted) ? 1 : 0; -- --} -- -- --/*-------------------- Data file manipulation -----------------*/ -- --static int yaffs_FindChunkInFile(yaffs_Object *in, int chunkInInode, -- yaffs_ExtendedTags *tags) --{ -- /*Get the Tnode, then get the level 0 offset chunk offset */ -- yaffs_Tnode *tn; -- int theChunk = -1; -- yaffs_ExtendedTags localTags; -- int retVal = -1; -- -- yaffs_Device *dev = in->myDev; -- -- if (!tags) { -- /* Passed a NULL, so use our own tags space */ -- tags = &localTags; -- } -- -- tn = yaffs_FindLevel0Tnode(dev, &in->variant.fileVariant, chunkInInode); -- -- if (tn) { -- theChunk = yaffs_GetChunkGroupBase(dev, tn, chunkInInode); -- -- retVal = -- yaffs_FindChunkInGroup(dev, theChunk, tags, in->objectId, -- chunkInInode); -- } -- return retVal; --} -- --static int yaffs_FindAndDeleteChunkInFile(yaffs_Object *in, int chunkInInode, -- yaffs_ExtendedTags *tags) --{ -- /* Get the Tnode, then get the level 0 offset chunk offset */ -- yaffs_Tnode *tn; -- int theChunk = -1; -- yaffs_ExtendedTags localTags; -- -- yaffs_Device *dev = in->myDev; -- int retVal = -1; -- -- if (!tags) { -- /* Passed a NULL, so use our own tags space */ -- tags = &localTags; -- } -- -- tn = yaffs_FindLevel0Tnode(dev, &in->variant.fileVariant, chunkInInode); -- -- if (tn) { -- -- theChunk = yaffs_GetChunkGroupBase(dev, tn, chunkInInode); -- -- retVal = -- yaffs_FindChunkInGroup(dev, theChunk, tags, in->objectId, -- chunkInInode); -- -- /* Delete the entry in the filestructure (if found) */ -- if (retVal != -1) -- yaffs_PutLevel0Tnode(dev, tn, chunkInInode, 0); -- } -- -- return retVal; --} -- --#ifdef YAFFS_PARANOID -- --static int yaffs_CheckFileSanity(yaffs_Object *in) --{ -- int chunk; -- int nChunks; -- int fSize; -- int failed = 0; -- int objId; -- yaffs_Tnode *tn; -- yaffs_Tags localTags; -- yaffs_Tags *tags = &localTags; -- int theChunk; -- int chunkDeleted; -- -- if (in->variantType != YAFFS_OBJECT_TYPE_FILE) -- return YAFFS_FAIL; -- -- objId = in->objectId; -- fSize = in->variant.fileVariant.fileSize; -- nChunks = -- (fSize + in->myDev->nDataBytesPerChunk - 1) / in->myDev->nDataBytesPerChunk; -- -- for (chunk = 1; chunk <= nChunks; chunk++) { -- tn = yaffs_FindLevel0Tnode(in->myDev, &in->variant.fileVariant, -- chunk); -- -- if (tn) { -- -- theChunk = yaffs_GetChunkGroupBase(dev, tn, chunk); -- -- if (yaffs_CheckChunkBits -- (dev, theChunk / dev->nChunksPerBlock, -- theChunk % dev->nChunksPerBlock)) { -- -- yaffs_ReadChunkTagsFromNAND(in->myDev, theChunk, -- tags, -- &chunkDeleted); -- if (yaffs_TagsMatch -- (tags, in->objectId, chunk, chunkDeleted)) { -- /* found it; */ -- -- } -- } else { -- -- failed = 1; -- } -- -- } else { -- /* T(("No level 0 found for %d\n", chunk)); */ -- } -- } -- -- return failed ? YAFFS_FAIL : YAFFS_OK; --} -- --#endif -- --static int yaffs_PutChunkIntoFile(yaffs_Object *in, int chunkInInode, -- int chunkInNAND, int inScan) --{ -- /* NB inScan is zero unless scanning. -- * For forward scanning, inScan is > 0; -- * for backward scanning inScan is < 0 -- */ -- -- yaffs_Tnode *tn; -- yaffs_Device *dev = in->myDev; -- int existingChunk; -- yaffs_ExtendedTags existingTags; -- yaffs_ExtendedTags newTags; -- unsigned existingSerial, newSerial; -- -- if (in->variantType != YAFFS_OBJECT_TYPE_FILE) { -- /* Just ignore an attempt at putting a chunk into a non-file during scanning -- * If it is not during Scanning then something went wrong! -- */ -- if (!inScan) { -- T(YAFFS_TRACE_ERROR, -- (TSTR -- ("yaffs tragedy:attempt to put data chunk into a non-file" -- TENDSTR))); -- YBUG(); -- } -- -- yaffs_DeleteChunk(dev, chunkInNAND, 1, __LINE__); -- return YAFFS_OK; -- } -- -- tn = yaffs_AddOrFindLevel0Tnode(dev, -- &in->variant.fileVariant, -- chunkInInode, -- NULL); -- if (!tn) -- return YAFFS_FAIL; -- -- existingChunk = yaffs_GetChunkGroupBase(dev, tn, chunkInInode); -- -- if (inScan != 0) { -- /* If we're scanning then we need to test for duplicates -- * NB This does not need to be efficient since it should only ever -- * happen when the power fails during a write, then only one -- * chunk should ever be affected. -- * -- * Correction for YAFFS2: This could happen quite a lot and we need to think about efficiency! TODO -- * Update: For backward scanning we don't need to re-read tags so this is quite cheap. -- */ -- -- if (existingChunk > 0) { -- /* NB Right now existing chunk will not be real chunkId if the device >= 32MB -- * thus we have to do a FindChunkInFile to get the real chunk id. -- * -- * We have a duplicate now we need to decide which one to use: -- * -- * Backwards scanning YAFFS2: The old one is what we use, dump the new one. -- * Forward scanning YAFFS2: The new one is what we use, dump the old one. -- * YAFFS1: Get both sets of tags and compare serial numbers. -- */ -- -- if (inScan > 0) { -- /* Only do this for forward scanning */ -- yaffs_ReadChunkWithTagsFromNAND(dev, -- chunkInNAND, -- NULL, &newTags); -- -- /* Do a proper find */ -- existingChunk = -- yaffs_FindChunkInFile(in, chunkInInode, -- &existingTags); -- } -- -- if (existingChunk <= 0) { -- /*Hoosterman - how did this happen? */ -- -- T(YAFFS_TRACE_ERROR, -- (TSTR -- ("yaffs tragedy: existing chunk < 0 in scan" -- TENDSTR))); -- -- } -- -- /* NB The deleted flags should be false, otherwise the chunks will -- * not be loaded during a scan -- */ -- -- if (inScan > 0) { -- newSerial = newTags.serialNumber; -- existingSerial = existingTags.serialNumber; -- } -- -- if ((inScan > 0) && -- (in->myDev->isYaffs2 || -- existingChunk <= 0 || -- ((existingSerial + 1) & 3) == newSerial)) { -- /* Forward scanning. -- * Use new -- * Delete the old one and drop through to update the tnode -- */ -- yaffs_DeleteChunk(dev, existingChunk, 1, -- __LINE__); -- } else { -- /* Backward scanning or we want to use the existing one -- * Use existing. -- * Delete the new one and return early so that the tnode isn't changed -- */ -- yaffs_DeleteChunk(dev, chunkInNAND, 1, -- __LINE__); -- return YAFFS_OK; -- } -- } -- -- } -- -- if (existingChunk == 0) -- in->nDataChunks++; -- -- yaffs_PutLevel0Tnode(dev, tn, chunkInInode, chunkInNAND); -- -- return YAFFS_OK; --} -- --static int yaffs_ReadChunkDataFromObject(yaffs_Object *in, int chunkInInode, -- __u8 *buffer) --{ -- int chunkInNAND = yaffs_FindChunkInFile(in, chunkInInode, NULL); -- -- if (chunkInNAND >= 0) -- return yaffs_ReadChunkWithTagsFromNAND(in->myDev, chunkInNAND, -- buffer, NULL); -- else { -- T(YAFFS_TRACE_NANDACCESS, -- (TSTR("Chunk %d not found zero instead" TENDSTR), -- chunkInNAND)); -- /* get sane (zero) data if you read a hole */ -- memset(buffer, 0, in->myDev->nDataBytesPerChunk); -- return 0; -- } -- --} -- --void yaffs_DeleteChunk(yaffs_Device *dev, int chunkId, int markNAND, int lyn) --{ -- int block; -- int page; -- yaffs_ExtendedTags tags; -- yaffs_BlockInfo *bi; -- -- if (chunkId <= 0) -- return; -- -- dev->nDeletions++; -- block = chunkId / dev->nChunksPerBlock; -- page = chunkId % dev->nChunksPerBlock; -- -- -- if (!yaffs_CheckChunkBit(dev, block, page)) -- T(YAFFS_TRACE_VERIFY, -- (TSTR("Deleting invalid chunk %d"TENDSTR), -- chunkId)); -- -- bi = yaffs_GetBlockInfo(dev, block); -- -- T(YAFFS_TRACE_DELETION, -- (TSTR("line %d delete of chunk %d" TENDSTR), lyn, chunkId)); -- -- if (markNAND && -- bi->blockState != YAFFS_BLOCK_STATE_COLLECTING && !dev->isYaffs2) { -- -- yaffs_InitialiseTags(&tags); -- -- tags.chunkDeleted = 1; -- -- yaffs_WriteChunkWithTagsToNAND(dev, chunkId, NULL, &tags); -- yaffs_HandleUpdateChunk(dev, chunkId, &tags); -- } else { -- dev->nUnmarkedDeletions++; -- } -- -- /* Pull out of the management area. -- * If the whole block became dirty, this will kick off an erasure. -- */ -- if (bi->blockState == YAFFS_BLOCK_STATE_ALLOCATING || -- bi->blockState == YAFFS_BLOCK_STATE_FULL || -- bi->blockState == YAFFS_BLOCK_STATE_NEEDS_SCANNING || -- bi->blockState == YAFFS_BLOCK_STATE_COLLECTING) { -- dev->nFreeChunks++; -- -- yaffs_ClearChunkBit(dev, block, page); -- -- bi->pagesInUse--; -- -- if (bi->pagesInUse == 0 && -- !bi->hasShrinkHeader && -- bi->blockState != YAFFS_BLOCK_STATE_ALLOCATING && -- bi->blockState != YAFFS_BLOCK_STATE_NEEDS_SCANNING) { -- yaffs_BlockBecameDirty(dev, block); -- } -- -- } -- --} -- --static int yaffs_WriteChunkDataToObject(yaffs_Object *in, int chunkInInode, -- const __u8 *buffer, int nBytes, -- int useReserve) --{ -- /* Find old chunk Need to do this to get serial number -- * Write new one and patch into tree. -- * Invalidate old tags. -- */ -- -- int prevChunkId; -- yaffs_ExtendedTags prevTags; -- -- int newChunkId; -- yaffs_ExtendedTags newTags; -- -- yaffs_Device *dev = in->myDev; -- -- yaffs_CheckGarbageCollection(dev); -- -- /* Get the previous chunk at this location in the file if it exists */ -- prevChunkId = yaffs_FindChunkInFile(in, chunkInInode, &prevTags); -- -- /* Set up new tags */ -- yaffs_InitialiseTags(&newTags); -- -- newTags.chunkId = chunkInInode; -- newTags.objectId = in->objectId; -- newTags.serialNumber = -- (prevChunkId >= 0) ? prevTags.serialNumber + 1 : 1; -- newTags.byteCount = nBytes; -- -- if (nBytes < 1 || nBytes > dev->totalBytesPerChunk) { -- T(YAFFS_TRACE_ERROR, -- (TSTR("Writing %d bytes to chunk!!!!!!!!!" TENDSTR), nBytes)); -- YBUG(); -- } -- -- newChunkId = -- yaffs_WriteNewChunkWithTagsToNAND(dev, buffer, &newTags, -- useReserve); -- -- if (newChunkId >= 0) { -- yaffs_PutChunkIntoFile(in, chunkInInode, newChunkId, 0); -- -- if (prevChunkId >= 0) -- yaffs_DeleteChunk(dev, prevChunkId, 1, __LINE__); -- -- yaffs_CheckFileSanity(in); -- } -- return newChunkId; -- --} -- --/* UpdateObjectHeader updates the header on NAND for an object. -- * If name is not NULL, then that new name is used. -- */ --int yaffs_UpdateObjectHeader(yaffs_Object *in, const YCHAR *name, int force, -- int isShrink, int shadows) --{ -- -- yaffs_BlockInfo *bi; -- -- yaffs_Device *dev = in->myDev; -- -- int prevChunkId; -- int retVal = 0; -- int result = 0; -- -- int newChunkId; -- yaffs_ExtendedTags newTags; -- yaffs_ExtendedTags oldTags; -- -- __u8 *buffer = NULL; -- YCHAR oldName[YAFFS_MAX_NAME_LENGTH + 1]; -- -- yaffs_ObjectHeader *oh = NULL; -+ yaffs_obj_t *in; -+ YCHAR *str = NULL; - -- yaffs_strcpy(oldName, _Y("silly old name")); -+ yaffs_dev_t *dev = parent->my_dev; - -+ /* Check if the entry exists. If it does then fail the call since we don't want a dup.*/ -+ if (yaffs_find_by_name(parent, name)) -+ return NULL; - -- if (!in->fake || -- in == dev->rootDir || /* The rootDir should also be saved */ -- force) { -+ if (type == YAFFS_OBJECT_TYPE_SYMLINK) { -+ str = yaffs_clone_str(aliasString); -+ if (!str) -+ return NULL; -+ } - -- yaffs_CheckGarbageCollection(dev); -- yaffs_CheckObjectDetailsLoaded(in); -+ in = yaffs_new_obj(dev, -1, type); - -- buffer = yaffs_GetTempBuffer(in->myDev, __LINE__); -- oh = (yaffs_ObjectHeader *) buffer; -+ if (!in){ -+ if(str) -+ YFREE(str); -+ return NULL; -+ } - -- prevChunkId = in->hdrChunk; - -- if (prevChunkId > 0) { -- result = yaffs_ReadChunkWithTagsFromNAND(dev, prevChunkId, -- buffer, &oldTags); - -- yaffs_VerifyObjectHeader(in, oh, &oldTags, 0); - -- memcpy(oldName, oh->name, sizeof(oh->name)); -- } - -- memset(buffer, 0xFF, dev->nDataBytesPerChunk); -+ if (in) { -+ in->hdr_chunk = 0; -+ in->valid = 1; -+ in->variant_type = type; - -- oh->type = in->variantType; -- oh->yst_mode = in->yst_mode; -- oh->shadowsObject = oh->inbandShadowsObject = shadows; -+ in->yst_mode = mode; - - #ifdef CONFIG_YAFFS_WINCE -- oh->win_atime[0] = in->win_atime[0]; -- oh->win_ctime[0] = in->win_ctime[0]; -- oh->win_mtime[0] = in->win_mtime[0]; -- oh->win_atime[1] = in->win_atime[1]; -- oh->win_ctime[1] = in->win_ctime[1]; -- oh->win_mtime[1] = in->win_mtime[1]; -+ yfsd_win_file_time_now(in->win_atime); -+ in->win_ctime[0] = in->win_mtime[0] = in->win_atime[0]; -+ in->win_ctime[1] = in->win_mtime[1] = in->win_atime[1]; -+ - #else -- oh->yst_uid = in->yst_uid; -- oh->yst_gid = in->yst_gid; -- oh->yst_atime = in->yst_atime; -- oh->yst_mtime = in->yst_mtime; -- oh->yst_ctime = in->yst_ctime; -- oh->yst_rdev = in->yst_rdev; -+ in->yst_atime = in->yst_mtime = in->yst_ctime = Y_CURRENT_TIME; -+ -+ in->yst_rdev = rdev; -+ in->yst_uid = uid; -+ in->yst_gid = gid; - #endif -- if (in->parent) -- oh->parentObjectId = in->parent->objectId; -- else -- oh->parentObjectId = 0; -+ in->n_data_chunks = 0; - -- if (name && *name) { -- memset(oh->name, 0, sizeof(oh->name)); -- yaffs_strncpy(oh->name, name, YAFFS_MAX_NAME_LENGTH); -- } else if (prevChunkId >= 0) -- memcpy(oh->name, oldName, sizeof(oh->name)); -- else -- memset(oh->name, 0, sizeof(oh->name)); -+ yaffs_set_obj_name(in, name); -+ in->dirty = 1; - -- oh->isShrink = isShrink; -+ yaffs_add_obj_to_dir(parent, in); - -- switch (in->variantType) { -- case YAFFS_OBJECT_TYPE_UNKNOWN: -- /* Should not happen */ -- break; -- case YAFFS_OBJECT_TYPE_FILE: -- oh->fileSize = -- (oh->parentObjectId == YAFFS_OBJECTID_DELETED -- || oh->parentObjectId == -- YAFFS_OBJECTID_UNLINKED) ? 0 : in->variant. -- fileVariant.fileSize; -+ in->my_dev = parent->my_dev; -+ -+ switch (type) { -+ case YAFFS_OBJECT_TYPE_SYMLINK: -+ in->variant.symlink_variant.alias = str; - break; - case YAFFS_OBJECT_TYPE_HARDLINK: -- oh->equivalentObjectId = -- in->variant.hardLinkVariant.equivalentObjectId; -- break; -- case YAFFS_OBJECT_TYPE_SPECIAL: -- /* Do nothing */ -+ in->variant.hardlink_variant.equiv_obj = -+ equiv_obj; -+ in->variant.hardlink_variant.equiv_id = -+ equiv_obj->obj_id; -+ ylist_add(&in->hard_links, &equiv_obj->hard_links); - break; -+ case YAFFS_OBJECT_TYPE_FILE: - case YAFFS_OBJECT_TYPE_DIRECTORY: -- /* Do nothing */ -- break; -- case YAFFS_OBJECT_TYPE_SYMLINK: -- yaffs_strncpy(oh->alias, -- in->variant.symLinkVariant.alias, -- YAFFS_MAX_ALIAS_LENGTH); -- oh->alias[YAFFS_MAX_ALIAS_LENGTH] = 0; -+ case YAFFS_OBJECT_TYPE_SPECIAL: -+ case YAFFS_OBJECT_TYPE_UNKNOWN: -+ /* do nothing */ - break; - } - -- /* Tags */ -- yaffs_InitialiseTags(&newTags); -- in->serial++; -- newTags.chunkId = 0; -- newTags.objectId = in->objectId; -- newTags.serialNumber = in->serial; -- -- /* Add extra info for file header */ -- -- newTags.extraHeaderInfoAvailable = 1; -- newTags.extraParentObjectId = oh->parentObjectId; -- newTags.extraFileLength = oh->fileSize; -- newTags.extraIsShrinkHeader = oh->isShrink; -- newTags.extraEquivalentObjectId = oh->equivalentObjectId; -- newTags.extraShadows = (oh->shadowsObject > 0) ? 1 : 0; -- newTags.extraObjectType = in->variantType; -- -- yaffs_VerifyObjectHeader(in, oh, &newTags, 1); -- -- /* Create new chunk in NAND */ -- newChunkId = -- yaffs_WriteNewChunkWithTagsToNAND(dev, buffer, &newTags, -- (prevChunkId >= 0) ? 1 : 0); -- -- if (newChunkId >= 0) { -- -- in->hdrChunk = newChunkId; -- -- if (prevChunkId >= 0) { -- yaffs_DeleteChunk(dev, prevChunkId, 1, -- __LINE__); -- } -- -- if (!yaffs_ObjectHasCachedWriteData(in)) -- in->dirty = 0; -- -- /* If this was a shrink, then mark the block that the chunk lives on */ -- if (isShrink) { -- bi = yaffs_GetBlockInfo(in->myDev, -- newChunkId / in->myDev->nChunksPerBlock); -- bi->hasShrinkHeader = 1; -- } -- -+ if (yaffs_update_oh(in, name, 0, 0, 0, NULL) < 0) { -+ /* Could not create the object header, fail the creation */ -+ yaffs_del_obj(in); -+ in = NULL; - } - -- retVal = newChunkId; -- -+ yaffs_update_parent(parent); - } - -- if (buffer) -- yaffs_ReleaseTempBuffer(dev, buffer, __LINE__); -- -- return retVal; -+ return in; - } - --/*------------------------ Short Operations Cache ---------------------------------------- -- * In many situations where there is no high level buffering (eg WinCE) a lot of -- * reads might be short sequential reads, and a lot of writes may be short -- * sequential writes. eg. scanning/writing a jpeg file. -- * In these cases, a short read/write cache can provide a huge perfomance benefit -- * with dumb-as-a-rock code. -- * In Linux, the page cache provides read buffering aand the short op cache provides write -- * buffering. -- * -- * There are a limited number (~10) of cache chunks per device so that we don't -- * need a very intelligent search. -- */ -- --static int yaffs_ObjectHasCachedWriteData(yaffs_Object *obj) -+yaffs_obj_t *yaffs_create_file(yaffs_obj_t *parent, const YCHAR *name, -+ __u32 mode, __u32 uid, __u32 gid) - { -- yaffs_Device *dev = obj->myDev; -- int i; -- yaffs_ChunkCache *cache; -- int nCaches = obj->myDev->nShortOpCaches; -- -- for (i = 0; i < nCaches; i++) { -- cache = &dev->srCache[i]; -- if (cache->object == obj && -- cache->dirty) -- return 1; -- } -+ return yaffs_create_obj(YAFFS_OBJECT_TYPE_FILE, parent, name, mode, -+ uid, gid, NULL, NULL, 0); -+} - -- return 0; -+yaffs_obj_t *yaffs_create_dir(yaffs_obj_t *parent, const YCHAR *name, -+ __u32 mode, __u32 uid, __u32 gid) -+{ -+ return yaffs_create_obj(YAFFS_OBJECT_TYPE_DIRECTORY, parent, name, -+ mode, uid, gid, NULL, NULL, 0); - } - -+yaffs_obj_t *yaffs_create_special(yaffs_obj_t *parent, const YCHAR *name, -+ __u32 mode, __u32 uid, __u32 gid, __u32 rdev) -+{ -+ return yaffs_create_obj(YAFFS_OBJECT_TYPE_SPECIAL, parent, name, mode, -+ uid, gid, NULL, NULL, rdev); -+} - --static void yaffs_FlushFilesChunkCache(yaffs_Object *obj) -+yaffs_obj_t *yaffs_create_symlink(yaffs_obj_t *parent, const YCHAR *name, -+ __u32 mode, __u32 uid, __u32 gid, -+ const YCHAR *alias) - { -- yaffs_Device *dev = obj->myDev; -- int lowest = -99; /* Stop compiler whining. */ -- int i; -- yaffs_ChunkCache *cache; -- int chunkWritten = 0; -- int nCaches = obj->myDev->nShortOpCaches; -+ return yaffs_create_obj(YAFFS_OBJECT_TYPE_SYMLINK, parent, name, mode, -+ uid, gid, NULL, alias, 0); -+} - -- if (nCaches > 0) { -- do { -- cache = NULL; -+/* yaffs_link_obj returns the object id of the equivalent object.*/ -+yaffs_obj_t *yaffs_link_obj(yaffs_obj_t *parent, const YCHAR *name, -+ yaffs_obj_t *equiv_obj) -+{ -+ /* Get the real object in case we were fed a hard link as an equivalent object */ -+ equiv_obj = yaffs_get_equivalent_obj(equiv_obj); - -- /* Find the dirty cache for this object with the lowest chunk id. */ -- for (i = 0; i < nCaches; i++) { -- if (dev->srCache[i].object == obj && -- dev->srCache[i].dirty) { -- if (!cache -- || dev->srCache[i].chunkId < -- lowest) { -- cache = &dev->srCache[i]; -- lowest = cache->chunkId; -- } -- } -- } -+ if (yaffs_create_obj -+ (YAFFS_OBJECT_TYPE_HARDLINK, parent, name, 0, 0, 0, -+ equiv_obj, NULL, 0)) { -+ return equiv_obj; -+ } else { -+ return NULL; -+ } - -- if (cache && !cache->locked) { -- /* Write it out and free it up */ -+} - -- chunkWritten = -- yaffs_WriteChunkDataToObject(cache->object, -- cache->chunkId, -- cache->data, -- cache->nBytes, -- 1); -- cache->dirty = 0; -- cache->object = NULL; -- } -+static int yaffs_change_obj_name(yaffs_obj_t *obj, yaffs_obj_t *new_dir, -+ const YCHAR *new_name, int force, int shadows) -+{ -+ int unlinkOp; -+ int deleteOp; - -- } while (cache && chunkWritten > 0); -+ yaffs_obj_t *existingTarget; - -- if (cache) { -- /* Hoosterman, disk full while writing cache out. */ -- T(YAFFS_TRACE_ERROR, -- (TSTR("yaffs tragedy: no space during cache write" TENDSTR))); -+ if (new_dir == NULL) -+ new_dir = obj->parent; /* use the old directory */ - -- } -+ if (new_dir->variant_type != YAFFS_OBJECT_TYPE_DIRECTORY) { -+ T(YAFFS_TRACE_ALWAYS, -+ (TSTR -+ ("tragedy: yaffs_change_obj_name: new_dir is not a directory" -+ TENDSTR))); -+ YBUG(); - } - --} -+ /* TODO: Do we need this different handling for YAFFS2 and YAFFS1?? */ -+ if (obj->my_dev->param.is_yaffs2) -+ unlinkOp = (new_dir == obj->my_dev->unlinked_dir); -+ else -+ unlinkOp = (new_dir == obj->my_dev->unlinked_dir -+ && obj->variant_type == YAFFS_OBJECT_TYPE_FILE); - --/*yaffs_FlushEntireDeviceCache(dev) -- * -- * -- */ -+ deleteOp = (new_dir == obj->my_dev->del_dir); - --void yaffs_FlushEntireDeviceCache(yaffs_Device *dev) --{ -- yaffs_Object *obj; -- int nCaches = dev->nShortOpCaches; -- int i; -+ existingTarget = yaffs_find_by_name(new_dir, new_name); - -- /* Find a dirty object in the cache and flush it... -- * until there are no further dirty objects. -+ /* If the object is a file going into the unlinked directory, -+ * then it is OK to just stuff it in since duplicate names are allowed. -+ * else only proceed if the new name does not exist and if we're putting -+ * it into a directory. - */ -- do { -- obj = NULL; -- for (i = 0; i < nCaches && !obj; i++) { -- if (dev->srCache[i].object && -- dev->srCache[i].dirty) -- obj = dev->srCache[i].object; -- -- } -- if (obj) -- yaffs_FlushFilesChunkCache(obj); -- -- } while (obj); -- --} -+ if ((unlinkOp || -+ deleteOp || -+ force || -+ (shadows > 0) || -+ !existingTarget) && -+ new_dir->variant_type == YAFFS_OBJECT_TYPE_DIRECTORY) { -+ yaffs_set_obj_name(obj, new_name); -+ obj->dirty = 1; - -+ yaffs_add_obj_to_dir(new_dir, obj); - --/* Grab us a cache chunk for use. -- * First look for an empty one. -- * Then look for the least recently used non-dirty one. -- * Then look for the least recently used dirty one...., flush and look again. -- */ --static yaffs_ChunkCache *yaffs_GrabChunkCacheWorker(yaffs_Device *dev) --{ -- int i; -+ if (unlinkOp) -+ obj->unlinked = 1; - -- if (dev->nShortOpCaches > 0) { -- for (i = 0; i < dev->nShortOpCaches; i++) { -- if (!dev->srCache[i].object) -- return &dev->srCache[i]; -- } -+ /* If it is a deletion then we mark it as a shrink for gc purposes. */ -+ if (yaffs_update_oh(obj, new_name, 0, deleteOp, shadows, NULL) >= 0) -+ return YAFFS_OK; - } - -- return NULL; -+ return YAFFS_FAIL; - } - --static yaffs_ChunkCache *yaffs_GrabChunkCache(yaffs_Device *dev) -+int yaffs_rename_obj(yaffs_obj_t *old_dir, const YCHAR *old_name, -+ yaffs_obj_t *new_dir, const YCHAR *new_name) - { -- yaffs_ChunkCache *cache; -- yaffs_Object *theObj; -- int usage; -- int i; -- int pushout; -- -- if (dev->nShortOpCaches > 0) { -- /* Try find a non-dirty one... */ -- -- cache = yaffs_GrabChunkCacheWorker(dev); -+ yaffs_obj_t *obj = NULL; -+ yaffs_obj_t *existingTarget = NULL; -+ int force = 0; -+ int result; -+ yaffs_dev_t *dev; - -- if (!cache) { -- /* They were all dirty, find the last recently used object and flush -- * its cache, then find again. -- * NB what's here is not very accurate, we actually flush the object -- * the last recently used page. -- */ - -- /* With locking we can't assume we can use entry zero */ -+ if (!old_dir || old_dir->variant_type != YAFFS_OBJECT_TYPE_DIRECTORY) -+ YBUG(); -+ if (!new_dir || new_dir->variant_type != YAFFS_OBJECT_TYPE_DIRECTORY) -+ YBUG(); - -- theObj = NULL; -- usage = -1; -- cache = NULL; -- pushout = -1; -+ dev = old_dir->my_dev; - -- for (i = 0; i < dev->nShortOpCaches; i++) { -- if (dev->srCache[i].object && -- !dev->srCache[i].locked && -- (dev->srCache[i].lastUse < usage || !cache)) { -- usage = dev->srCache[i].lastUse; -- theObj = dev->srCache[i].object; -- cache = &dev->srCache[i]; -- pushout = i; -- } -- } -+#ifdef CONFIG_YAFFS_CASE_INSENSITIVE -+ /* Special case for case insemsitive systems (eg. WinCE). -+ * While look-up is case insensitive, the name isn't. -+ * Therefore we might want to change x.txt to X.txt -+ */ -+ if (old_dir == new_dir && yaffs_strcmp(old_name, new_name) == 0) -+ force = 1; -+#endif - -- if (!cache || cache->dirty) { -- /* Flush and try again */ -- yaffs_FlushFilesChunkCache(theObj); -- cache = yaffs_GrabChunkCacheWorker(dev); -- } -+ if(yaffs_strnlen(new_name,YAFFS_MAX_NAME_LENGTH+1) > YAFFS_MAX_NAME_LENGTH) -+ /* ENAMETOOLONG */ -+ return YAFFS_FAIL; - -- } -- return cache; -- } else -- return NULL; -+ obj = yaffs_find_by_name(old_dir, old_name); - --} -+ if (obj && obj->rename_allowed) { - --/* Find a cached chunk */ --static yaffs_ChunkCache *yaffs_FindChunkCache(const yaffs_Object *obj, -- int chunkId) --{ -- yaffs_Device *dev = obj->myDev; -- int i; -- if (dev->nShortOpCaches > 0) { -- for (i = 0; i < dev->nShortOpCaches; i++) { -- if (dev->srCache[i].object == obj && -- dev->srCache[i].chunkId == chunkId) { -- dev->cacheHits++; -+ /* Now do the handling for an existing target, if there is one */ - -- return &dev->srCache[i]; -- } -+ existingTarget = yaffs_find_by_name(new_dir, new_name); -+ if (existingTarget && -+ existingTarget->variant_type == YAFFS_OBJECT_TYPE_DIRECTORY && -+ !ylist_empty(&existingTarget->variant.dir_variant.children)) { -+ /* There is a target that is a non-empty directory, so we fail */ -+ return YAFFS_FAIL; /* EEXIST or ENOTEMPTY */ -+ } else if (existingTarget && existingTarget != obj) { -+ /* Nuke the target first, using shadowing, -+ * but only if it isn't the same object. -+ * -+ * Note we must disable gc otherwise it can mess up the shadowing. -+ * -+ */ -+ dev->gc_disable=1; -+ yaffs_change_obj_name(obj, new_dir, new_name, force, -+ existingTarget->obj_id); -+ existingTarget->is_shadowed = 1; -+ yaffs_unlink_obj(existingTarget); -+ dev->gc_disable=0; - } -+ -+ result = yaffs_change_obj_name(obj, new_dir, new_name, 1, 0); -+ -+ yaffs_update_parent(old_dir); -+ if(new_dir != old_dir) -+ yaffs_update_parent(new_dir); -+ -+ return result; - } -- return NULL; -+ return YAFFS_FAIL; - } - --/* Mark the chunk for the least recently used algorithym */ --static void yaffs_UseChunkCache(yaffs_Device *dev, yaffs_ChunkCache *cache, -- int isAWrite) -+/*------------------------- Block Management and Page Allocation ----------------*/ -+ -+static int yaffs_init_blocks(yaffs_dev_t *dev) - { -+ int nBlocks = dev->internal_end_block - dev->internal_start_block + 1; - -- if (dev->nShortOpCaches > 0) { -- if (dev->srLastUse < 0 || dev->srLastUse > 100000000) { -- /* Reset the cache usages */ -- int i; -- for (i = 1; i < dev->nShortOpCaches; i++) -- dev->srCache[i].lastUse = 0; -+ dev->block_info = NULL; -+ dev->chunk_bits = NULL; - -- dev->srLastUse = 0; -- } -+ dev->alloc_block = -1; /* force it to get a new one */ - -- dev->srLastUse++; -+ /* If the first allocation strategy fails, thry the alternate one */ -+ dev->block_info = YMALLOC(nBlocks * sizeof(yaffs_block_info_t)); -+ if (!dev->block_info) { -+ dev->block_info = YMALLOC_ALT(nBlocks * sizeof(yaffs_block_info_t)); -+ dev->block_info_alt = 1; -+ } else -+ dev->block_info_alt = 0; - -- cache->lastUse = dev->srLastUse; -+ if (dev->block_info) { -+ /* Set up dynamic blockinfo stuff. */ -+ dev->chunk_bit_stride = (dev->param.chunks_per_block + 7) / 8; /* round up bytes */ -+ dev->chunk_bits = YMALLOC(dev->chunk_bit_stride * nBlocks); -+ if (!dev->chunk_bits) { -+ dev->chunk_bits = YMALLOC_ALT(dev->chunk_bit_stride * nBlocks); -+ dev->chunk_bits_alt = 1; -+ } else -+ dev->chunk_bits_alt = 0; -+ } - -- if (isAWrite) -- cache->dirty = 1; -+ if (dev->block_info && dev->chunk_bits) { -+ memset(dev->block_info, 0, nBlocks * sizeof(yaffs_block_info_t)); -+ memset(dev->chunk_bits, 0, dev->chunk_bit_stride * nBlocks); -+ return YAFFS_OK; - } -+ -+ return YAFFS_FAIL; - } - --/* Invalidate a single cache page. -- * Do this when a whole page gets written, -- * ie the short cache for this page is no longer valid. -- */ --static void yaffs_InvalidateChunkCache(yaffs_Object *object, int chunkId) -+static void yaffs_deinit_blocks(yaffs_dev_t *dev) - { -- if (object->myDev->nShortOpCaches > 0) { -- yaffs_ChunkCache *cache = yaffs_FindChunkCache(object, chunkId); -+ if (dev->block_info_alt && dev->block_info) -+ YFREE_ALT(dev->block_info); -+ else if (dev->block_info) -+ YFREE(dev->block_info); - -- if (cache) -- cache->object = NULL; -- } --} -+ dev->block_info_alt = 0; - --/* Invalidate all the cache pages associated with this object -- * Do this whenever ther file is deleted or resized. -- */ --static void yaffs_InvalidateWholeChunkCache(yaffs_Object *in) --{ -- int i; -- yaffs_Device *dev = in->myDev; -+ dev->block_info = NULL; - -- if (dev->nShortOpCaches > 0) { -- /* Invalidate it. */ -- for (i = 0; i < dev->nShortOpCaches; i++) { -- if (dev->srCache[i].object == in) -- dev->srCache[i].object = NULL; -- } -- } -+ if (dev->chunk_bits_alt && dev->chunk_bits) -+ YFREE_ALT(dev->chunk_bits); -+ else if (dev->chunk_bits) -+ YFREE(dev->chunk_bits); -+ dev->chunk_bits_alt = 0; -+ dev->chunk_bits = NULL; - } - --/*--------------------- Checkpointing --------------------*/ -+void yaffs_block_became_dirty(yaffs_dev_t *dev, int block_no) -+{ -+ yaffs_block_info_t *bi = yaffs_get_block_info(dev, block_no); - -+ int erasedOk = 0; - --static int yaffs_WriteCheckpointValidityMarker(yaffs_Device *dev, int head) --{ -- yaffs_CheckpointValidity cp; -+ /* If the block is still healthy erase it and mark as clean. -+ * If the block has had a data failure, then retire it. -+ */ - -- memset(&cp, 0, sizeof(cp)); -+ T(YAFFS_TRACE_GC | YAFFS_TRACE_ERASE, -+ (TSTR("yaffs_block_became_dirty block %d state %d %s"TENDSTR), -+ block_no, bi->block_state, (bi->needs_retiring) ? "needs retiring" : "")); - -- cp.structType = sizeof(cp); -- cp.magic = YAFFS_MAGIC; -- cp.version = YAFFS_CHECKPOINT_VERSION; -- cp.head = (head) ? 1 : 0; -+ yaffs2_clear_oldest_dirty_seq(dev,bi); - -- return (yaffs_CheckpointWrite(dev, &cp, sizeof(cp)) == sizeof(cp)) ? -- 1 : 0; --} -+ bi->block_state = YAFFS_BLOCK_STATE_DIRTY; - --static int yaffs_ReadCheckpointValidityMarker(yaffs_Device *dev, int head) --{ -- yaffs_CheckpointValidity cp; -- int ok; -+ /* If this is the block being garbage collected then stop gc'ing this block */ -+ if(block_no == dev->gc_block) -+ dev->gc_block = 0; - -- ok = (yaffs_CheckpointRead(dev, &cp, sizeof(cp)) == sizeof(cp)); -+ /* If this block is currently the best candidate for gc then drop as a candidate */ -+ if(block_no == dev->gc_dirtiest){ -+ dev->gc_dirtiest = 0; -+ dev->gc_pages_in_use = 0; -+ } - -- if (ok) -- ok = (cp.structType == sizeof(cp)) && -- (cp.magic == YAFFS_MAGIC) && -- (cp.version == YAFFS_CHECKPOINT_VERSION) && -- (cp.head == ((head) ? 1 : 0)); -- return ok ? 1 : 0; --} -+ if (!bi->needs_retiring) { -+ yaffs2_checkpt_invalidate(dev); -+ erasedOk = yaffs_erase_block(dev, block_no); -+ if (!erasedOk) { -+ dev->n_erase_failures++; -+ T(YAFFS_TRACE_ERROR | YAFFS_TRACE_BAD_BLOCKS, -+ (TSTR("**>> Erasure failed %d" TENDSTR), block_no)); -+ } -+ } - --static void yaffs_DeviceToCheckpointDevice(yaffs_CheckpointDevice *cp, -- yaffs_Device *dev) --{ -- cp->nErasedBlocks = dev->nErasedBlocks; -- cp->allocationBlock = dev->allocationBlock; -- cp->allocationPage = dev->allocationPage; -- cp->nFreeChunks = dev->nFreeChunks; -+ if (erasedOk && -+ ((yaffs_trace_mask & YAFFS_TRACE_ERASE) || !yaffs_skip_verification(dev))) { -+ int i; -+ for (i = 0; i < dev->param.chunks_per_block; i++) { -+ if (!yaffs_check_chunk_erased -+ (dev, block_no * dev->param.chunks_per_block + i)) { -+ T(YAFFS_TRACE_ERROR, -+ (TSTR -+ (">>Block %d erasure supposedly OK, but chunk %d not erased" -+ TENDSTR), block_no, i)); -+ } -+ } -+ } -+ -+ if (erasedOk) { -+ /* Clean it up... */ -+ bi->block_state = YAFFS_BLOCK_STATE_EMPTY; -+ bi->seq_number = 0; -+ dev->n_erased_blocks++; -+ bi->pages_in_use = 0; -+ bi->soft_del_pages = 0; -+ bi->has_shrink_hdr = 0; -+ bi->skip_erased_check = 1; /* This is clean, so no need to check */ -+ bi->gc_prioritise = 0; -+ yaffs_clear_chunk_bits(dev, block_no); - -- cp->nDeletedFiles = dev->nDeletedFiles; -- cp->nUnlinkedFiles = dev->nUnlinkedFiles; -- cp->nBackgroundDeletions = dev->nBackgroundDeletions; -- cp->sequenceNumber = dev->sequenceNumber; -- cp->oldestDirtySequence = dev->oldestDirtySequence; -+ T(YAFFS_TRACE_ERASE, -+ (TSTR("Erased block %d" TENDSTR), block_no)); -+ } else { -+ dev->n_free_chunks -= dev->param.chunks_per_block; /* We lost a block of free space */ - -+ yaffs_retire_block(dev, block_no); -+ T(YAFFS_TRACE_ERROR | YAFFS_TRACE_BAD_BLOCKS, -+ (TSTR("**>> Block %d retired" TENDSTR), block_no)); -+ } - } - --static void yaffs_CheckpointDeviceToDevice(yaffs_Device *dev, -- yaffs_CheckpointDevice *cp) -+static int yaffs_find_alloc_block(yaffs_dev_t *dev) - { -- dev->nErasedBlocks = cp->nErasedBlocks; -- dev->allocationBlock = cp->allocationBlock; -- dev->allocationPage = cp->allocationPage; -- dev->nFreeChunks = cp->nFreeChunks; -- -- dev->nDeletedFiles = cp->nDeletedFiles; -- dev->nUnlinkedFiles = cp->nUnlinkedFiles; -- dev->nBackgroundDeletions = cp->nBackgroundDeletions; -- dev->sequenceNumber = cp->sequenceNumber; -- dev->oldestDirtySequence = cp->oldestDirtySequence; --} -+ int i; - -+ yaffs_block_info_t *bi; - --static int yaffs_WriteCheckpointDevice(yaffs_Device *dev) --{ -- yaffs_CheckpointDevice cp; -- __u32 nBytes; -- __u32 nBlocks = (dev->internalEndBlock - dev->internalStartBlock + 1); -+ if (dev->n_erased_blocks < 1) { -+ /* Hoosterman we've got a problem. -+ * Can't get space to gc -+ */ -+ T(YAFFS_TRACE_ERROR, -+ (TSTR("yaffs tragedy: no more erased blocks" TENDSTR))); - -- int ok; -+ return -1; -+ } - -- /* Write device runtime values*/ -- yaffs_DeviceToCheckpointDevice(&cp, dev); -- cp.structType = sizeof(cp); -+ /* Find an empty block. */ - -- ok = (yaffs_CheckpointWrite(dev, &cp, sizeof(cp)) == sizeof(cp)); -+ for (i = dev->internal_start_block; i <= dev->internal_end_block; i++) { -+ dev->alloc_block_finder++; -+ if (dev->alloc_block_finder < dev->internal_start_block -+ || dev->alloc_block_finder > dev->internal_end_block) { -+ dev->alloc_block_finder = dev->internal_start_block; -+ } - -- /* Write block info */ -- if (ok) { -- nBytes = nBlocks * sizeof(yaffs_BlockInfo); -- ok = (yaffs_CheckpointWrite(dev, dev->blockInfo, nBytes) == nBytes); -+ bi = yaffs_get_block_info(dev, dev->alloc_block_finder); -+ -+ if (bi->block_state == YAFFS_BLOCK_STATE_EMPTY) { -+ bi->block_state = YAFFS_BLOCK_STATE_ALLOCATING; -+ dev->seq_number++; -+ bi->seq_number = dev->seq_number; -+ dev->n_erased_blocks--; -+ T(YAFFS_TRACE_ALLOCATE, -+ (TSTR("Allocated block %d, seq %d, %d left" TENDSTR), -+ dev->alloc_block_finder, dev->seq_number, -+ dev->n_erased_blocks)); -+ return dev->alloc_block_finder; -+ } - } - -- /* Write chunk bits */ -- if (ok) { -- nBytes = nBlocks * dev->chunkBitmapStride; -- ok = (yaffs_CheckpointWrite(dev, dev->chunkBits, nBytes) == nBytes); -- } -- return ok ? 1 : 0; -+ T(YAFFS_TRACE_ALWAYS, -+ (TSTR -+ ("yaffs tragedy: no more erased blocks, but there should have been %d" -+ TENDSTR), dev->n_erased_blocks)); - -+ return -1; - } - --static int yaffs_ReadCheckpointDevice(yaffs_Device *dev) -+ -+/* -+ * Check if there's space to allocate... -+ * Thinks.... do we need top make this ths same as yaffs_get_free_chunks()? -+ */ -+int yaffs_check_alloc_available(yaffs_dev_t *dev, int n_chunks) - { -- yaffs_CheckpointDevice cp; -- __u32 nBytes; -- __u32 nBlocks = (dev->internalEndBlock - dev->internalStartBlock + 1); -+ int reservedChunks; -+ int reservedBlocks = dev->param.n_reserved_blocks; -+ int checkpointBlocks; - -- int ok; -+ checkpointBlocks = yaffs_calc_checkpt_blocks_required(dev); - -- ok = (yaffs_CheckpointRead(dev, &cp, sizeof(cp)) == sizeof(cp)); -- if (!ok) -- return 0; -+ reservedChunks = ((reservedBlocks + checkpointBlocks) * dev->param.chunks_per_block); - -- if (cp.structType != sizeof(cp)) -- return 0; -+ return (dev->n_free_chunks > (reservedChunks + n_chunks)); -+} -+ -+static int yaffs_alloc_chunk(yaffs_dev_t *dev, int useReserve, -+ yaffs_block_info_t **blockUsedPtr) -+{ -+ int retVal; -+ yaffs_block_info_t *bi; -+ -+ if (dev->alloc_block < 0) { -+ /* Get next block to allocate off */ -+ dev->alloc_block = yaffs_find_alloc_block(dev); -+ dev->alloc_page = 0; -+ } - -+ if (!useReserve && !yaffs_check_alloc_available(dev, 1)) { -+ /* Not enough space to allocate unless we're allowed to use the reserve. */ -+ return -1; -+ } - -- yaffs_CheckpointDeviceToDevice(dev, &cp); -+ if (dev->n_erased_blocks < dev->param.n_reserved_blocks -+ && dev->alloc_page == 0) { -+ T(YAFFS_TRACE_ALLOCATE, (TSTR("Allocating reserve" TENDSTR))); -+ } - -- nBytes = nBlocks * sizeof(yaffs_BlockInfo); -+ /* Next page please.... */ -+ if (dev->alloc_block >= 0) { -+ bi = yaffs_get_block_info(dev, dev->alloc_block); - -- ok = (yaffs_CheckpointRead(dev, dev->blockInfo, nBytes) == nBytes); -+ retVal = (dev->alloc_block * dev->param.chunks_per_block) + -+ dev->alloc_page; -+ bi->pages_in_use++; -+ yaffs_set_chunk_bit(dev, dev->alloc_block, -+ dev->alloc_page); - -- if (!ok) -- return 0; -- nBytes = nBlocks * dev->chunkBitmapStride; -+ dev->alloc_page++; - -- ok = (yaffs_CheckpointRead(dev, dev->chunkBits, nBytes) == nBytes); -+ dev->n_free_chunks--; - -- return ok ? 1 : 0; --} -+ /* If the block is full set the state to full */ -+ if (dev->alloc_page >= dev->param.chunks_per_block) { -+ bi->block_state = YAFFS_BLOCK_STATE_FULL; -+ dev->alloc_block = -1; -+ } - --static void yaffs_ObjectToCheckpointObject(yaffs_CheckpointObject *cp, -- yaffs_Object *obj) --{ -+ if (blockUsedPtr) -+ *blockUsedPtr = bi; -+ -+ return retVal; -+ } - -- cp->objectId = obj->objectId; -- cp->parentId = (obj->parent) ? obj->parent->objectId : 0; -- cp->hdrChunk = obj->hdrChunk; -- cp->variantType = obj->variantType; -- cp->deleted = obj->deleted; -- cp->softDeleted = obj->softDeleted; -- cp->unlinked = obj->unlinked; -- cp->fake = obj->fake; -- cp->renameAllowed = obj->renameAllowed; -- cp->unlinkAllowed = obj->unlinkAllowed; -- cp->serial = obj->serial; -- cp->nDataChunks = obj->nDataChunks; -+ T(YAFFS_TRACE_ERROR, -+ (TSTR("!!!!!!!!! Allocator out !!!!!!!!!!!!!!!!!" TENDSTR))); - -- if (obj->variantType == YAFFS_OBJECT_TYPE_FILE) -- cp->fileSizeOrEquivalentObjectId = obj->variant.fileVariant.fileSize; -- else if (obj->variantType == YAFFS_OBJECT_TYPE_HARDLINK) -- cp->fileSizeOrEquivalentObjectId = obj->variant.hardLinkVariant.equivalentObjectId; -+ return -1; - } - --static int yaffs_CheckpointObjectToObject(yaffs_Object *obj, yaffs_CheckpointObject *cp) -+static int yaffs_get_erased_chunks(yaffs_dev_t *dev) - { -+ int n; - -- yaffs_Object *parent; -+ n = dev->n_erased_blocks * dev->param.chunks_per_block; - -- if (obj->variantType != cp->variantType) { -- T(YAFFS_TRACE_ERROR, (TSTR("Checkpoint read object %d type %d " -- TCONT("chunk %d does not match existing object type %d") -- TENDSTR), cp->objectId, cp->variantType, cp->hdrChunk, -- obj->variantType)); -- return 0; -- } -+ if (dev->alloc_block > 0) -+ n += (dev->param.chunks_per_block - dev->alloc_page); - -- obj->objectId = cp->objectId; -+ return n; - -- if (cp->parentId) -- parent = yaffs_FindOrCreateObjectByNumber( -- obj->myDev, -- cp->parentId, -- YAFFS_OBJECT_TYPE_DIRECTORY); -- else -- parent = NULL; -+} - -- if (parent) { -- if (parent->variantType != YAFFS_OBJECT_TYPE_DIRECTORY) { -- T(YAFFS_TRACE_ALWAYS, (TSTR("Checkpoint read object %d parent %d type %d" -- TCONT(" chunk %d Parent type, %d, not directory") -- TENDSTR), -- cp->objectId, cp->parentId, cp->variantType, -- cp->hdrChunk, parent->variantType)); -- return 0; -+/* -+ * yaffs_skip_rest_of_block() skips over the rest of the allocation block -+ * if we don't want to write to it. -+ */ -+void yaffs_skip_rest_of_block(yaffs_dev_t *dev) -+{ -+ if(dev->alloc_block > 0){ -+ yaffs_block_info_t *bi = yaffs_get_block_info(dev, dev->alloc_block); -+ if(bi->block_state == YAFFS_BLOCK_STATE_ALLOCATING){ -+ bi->block_state = YAFFS_BLOCK_STATE_FULL; -+ dev->alloc_block = -1; - } -- yaffs_AddObjectToDirectory(parent, obj); - } -- -- obj->hdrChunk = cp->hdrChunk; -- obj->variantType = cp->variantType; -- obj->deleted = cp->deleted; -- obj->softDeleted = cp->softDeleted; -- obj->unlinked = cp->unlinked; -- obj->fake = cp->fake; -- obj->renameAllowed = cp->renameAllowed; -- obj->unlinkAllowed = cp->unlinkAllowed; -- obj->serial = cp->serial; -- obj->nDataChunks = cp->nDataChunks; -- -- if (obj->variantType == YAFFS_OBJECT_TYPE_FILE) -- obj->variant.fileVariant.fileSize = cp->fileSizeOrEquivalentObjectId; -- else if (obj->variantType == YAFFS_OBJECT_TYPE_HARDLINK) -- obj->variant.hardLinkVariant.equivalentObjectId = cp->fileSizeOrEquivalentObjectId; -- -- if (obj->hdrChunk > 0) -- obj->lazyLoaded = 1; -- return 1; - } - - -- --static int yaffs_CheckpointTnodeWorker(yaffs_Object *in, yaffs_Tnode *tn, -- __u32 level, int chunkOffset) -+static int yaffs_gc_block(yaffs_dev_t *dev, int block, -+ int wholeBlock) - { -+ int oldChunk; -+ int newChunk; -+ int mark_flash; -+ int retVal = YAFFS_OK; - int i; -- yaffs_Device *dev = in->myDev; -- int ok = 1; -- int tnodeSize = (dev->tnodeWidth * YAFFS_NTNODES_LEVEL0)/8; -- -- if (tnodeSize < sizeof(yaffs_Tnode)) -- tnodeSize = sizeof(yaffs_Tnode); -+ int isCheckpointBlock; -+ int matchingChunk; -+ int maxCopies; - -+ int chunksBefore = yaffs_get_erased_chunks(dev); -+ int chunksAfter; - -- if (tn) { -- if (level > 0) { -+ yaffs_ext_tags tags; - -- for (i = 0; i < YAFFS_NTNODES_INTERNAL && ok; i++) { -- if (tn->internal[i]) { -- ok = yaffs_CheckpointTnodeWorker(in, -- tn->internal[i], -- level - 1, -- (chunkOffset<block_state == YAFFS_BLOCK_STATE_CHECKPOINT); - --static int yaffs_WriteCheckpointTnodes(yaffs_Object *obj) --{ -- __u32 endMarker = ~0; -- int ok = 1; - -- if (obj->variantType == YAFFS_OBJECT_TYPE_FILE) { -- ok = yaffs_CheckpointTnodeWorker(obj, -- obj->variant.fileVariant.top, -- obj->variant.fileVariant.topLevel, -- 0); -- if (ok) -- ok = (yaffs_CheckpointWrite(obj->myDev, &endMarker, sizeof(endMarker)) == -- sizeof(endMarker)); -- } -+ T(YAFFS_TRACE_TRACING, -+ (TSTR("Collecting block %d, in use %d, shrink %d, wholeBlock %d" TENDSTR), -+ block, -+ bi->pages_in_use, -+ bi->has_shrink_hdr, -+ wholeBlock)); - -- return ok ? 1 : 0; --} -+ /*yaffs_verify_free_chunks(dev); */ - --static int yaffs_ReadCheckpointTnodes(yaffs_Object *obj) --{ -- __u32 baseChunk; -- int ok = 1; -- yaffs_Device *dev = obj->myDev; -- yaffs_FileStructure *fileStructPtr = &obj->variant.fileVariant; -- yaffs_Tnode *tn; -- int nread = 0; -- int tnodeSize = (dev->tnodeWidth * YAFFS_NTNODES_LEVEL0)/8; -+ if(bi->block_state == YAFFS_BLOCK_STATE_FULL) -+ bi->block_state = YAFFS_BLOCK_STATE_COLLECTING; -+ -+ bi->has_shrink_hdr = 0; /* clear the flag so that the block can erase */ - -- if (tnodeSize < sizeof(yaffs_Tnode)) -- tnodeSize = sizeof(yaffs_Tnode); -+ dev->gc_disable = 1; - -- ok = (yaffs_CheckpointRead(dev, &baseChunk, sizeof(baseChunk)) == sizeof(baseChunk)); -+ if (isCheckpointBlock || -+ !yaffs_still_some_chunks(dev, block)) { -+ T(YAFFS_TRACE_TRACING, -+ (TSTR -+ ("Collecting block %d that has no chunks in use" TENDSTR), -+ block)); -+ yaffs_block_became_dirty(dev, block); -+ } else { - -- while (ok && (~baseChunk)) { -- nread++; -- /* Read level 0 tnode */ -+ __u8 *buffer = yaffs_get_temp_buffer(dev, __LINE__); - -+ yaffs_verify_blk(dev, bi, block); - -- tn = yaffs_GetTnodeRaw(dev); -- if (tn) -- ok = (yaffs_CheckpointRead(dev, tn, tnodeSize) == tnodeSize); -- else -- ok = 0; -+ maxCopies = (wholeBlock) ? dev->param.chunks_per_block : 5; -+ oldChunk = block * dev->param.chunks_per_block + dev->gc_chunk; - -- if (tn && ok) -- ok = yaffs_AddOrFindLevel0Tnode(dev, -- fileStructPtr, -- baseChunk, -- tn) ? 1 : 0; -+ for (/* init already done */; -+ retVal == YAFFS_OK && -+ dev->gc_chunk < dev->param.chunks_per_block && -+ (bi->block_state == YAFFS_BLOCK_STATE_COLLECTING) && -+ maxCopies > 0; -+ dev->gc_chunk++, oldChunk++) { -+ if (yaffs_check_chunk_bit(dev, block, dev->gc_chunk)) { - -- if (ok) -- ok = (yaffs_CheckpointRead(dev, &baseChunk, sizeof(baseChunk)) == sizeof(baseChunk)); -+ /* This page is in use and might need to be copied off */ - -- } -+ maxCopies--; - -- T(YAFFS_TRACE_CHECKPOINT, ( -- TSTR("Checkpoint read tnodes %d records, last %d. ok %d" TENDSTR), -- nread, baseChunk, ok)); -+ mark_flash = 1; - -- return ok ? 1 : 0; --} -+ yaffs_init_tags(&tags); - -+ yaffs_rd_chunk_tags_nand(dev, oldChunk, -+ buffer, &tags); - --static int yaffs_WriteCheckpointObjects(yaffs_Device *dev) --{ -- yaffs_Object *obj; -- yaffs_CheckpointObject cp; -- int i; -- int ok = 1; -- struct ylist_head *lh; -+ object = -+ yaffs_find_by_number(dev, -+ tags.obj_id); - -+ T(YAFFS_TRACE_GC_DETAIL, -+ (TSTR -+ ("Collecting chunk in block %d, %d %d %d " TENDSTR), -+ dev->gc_chunk, tags.obj_id, tags.chunk_id, -+ tags.n_bytes)); - -- /* Iterate through the objects in each hash entry, -- * dumping them to the checkpointing stream. -- */ -+ if (object && !yaffs_skip_verification(dev)) { -+ if (tags.chunk_id == 0) -+ matchingChunk = object->hdr_chunk; -+ else if (object->soft_del) -+ matchingChunk = oldChunk; /* Defeat the test */ -+ else -+ matchingChunk = yaffs_find_chunk_in_file(object, tags.chunk_id, NULL); - -- for (i = 0; ok && i < YAFFS_NOBJECT_BUCKETS; i++) { -- ylist_for_each(lh, &dev->objectBucket[i].list) { -- if (lh) { -- obj = ylist_entry(lh, yaffs_Object, hashLink); -- if (!obj->deferedFree) { -- yaffs_ObjectToCheckpointObject(&cp, obj); -- cp.structType = sizeof(cp); -- -- T(YAFFS_TRACE_CHECKPOINT, ( -- TSTR("Checkpoint write object %d parent %d type %d chunk %d obj addr %x" TENDSTR), -- cp.objectId, cp.parentId, cp.variantType, cp.hdrChunk, (unsigned) obj)); -+ if (oldChunk != matchingChunk) -+ T(YAFFS_TRACE_ERROR, -+ (TSTR("gc: page in gc mismatch: %d %d %d %d"TENDSTR), -+ oldChunk, matchingChunk, tags.obj_id, tags.chunk_id)); - -- ok = (yaffs_CheckpointWrite(dev, &cp, sizeof(cp)) == sizeof(cp)); -+ } - -- if (ok && obj->variantType == YAFFS_OBJECT_TYPE_FILE) -- ok = yaffs_WriteCheckpointTnodes(obj); -+ if (!object) { -+ T(YAFFS_TRACE_ERROR, -+ (TSTR -+ ("page %d in gc has no object: %d %d %d " -+ TENDSTR), oldChunk, -+ tags.obj_id, tags.chunk_id, tags.n_bytes)); - } -- } -- } -- } - -- /* Dump end of list */ -- memset(&cp, 0xFF, sizeof(yaffs_CheckpointObject)); -- cp.structType = sizeof(cp); -+ if (object && -+ object->deleted && -+ object->soft_del && -+ tags.chunk_id != 0) { -+ /* Data chunk in a soft deleted file, throw it away -+ * It's a soft deleted data chunk, -+ * No need to copy this, just forget about it and -+ * fix up the object. -+ */ -+ -+ /* Free chunks already includes softdeleted chunks. -+ * How ever this chunk is going to soon be really deleted -+ * which will increment free chunks. -+ * We have to decrement free chunks so this works out properly. -+ */ -+ dev->n_free_chunks--; -+ bi->soft_del_pages--; -+ -+ object->n_data_chunks--; - -- if (ok) -- ok = (yaffs_CheckpointWrite(dev, &cp, sizeof(cp)) == sizeof(cp)); -+ if (object->n_data_chunks <= 0) { -+ /* remeber to clean up the object */ -+ dev->gc_cleanup_list[dev->n_clean_ups] = -+ tags.obj_id; -+ dev->n_clean_ups++; -+ } -+ mark_flash = 0; -+ } else if (0) { -+ /* Todo object && object->deleted && object->n_data_chunks == 0 */ -+ /* Deleted object header with no data chunks. -+ * Can be discarded and the file deleted. -+ */ -+ object->hdr_chunk = 0; -+ yaffs_free_tnode(object->my_dev, -+ object->variant. -+ file_variant.top); -+ object->variant.file_variant.top = NULL; -+ yaffs_generic_obj_del(object); - -- return ok ? 1 : 0; --} -+ } else if (object) { -+ /* It's either a data chunk in a live file or -+ * an ObjectHeader, so we're interested in it. -+ * NB Need to keep the ObjectHeaders of deleted files -+ * until the whole file has been deleted off -+ */ -+ tags.serial_number++; - --static int yaffs_ReadCheckpointObjects(yaffs_Device *dev) --{ -- yaffs_Object *obj; -- yaffs_CheckpointObject cp; -- int ok = 1; -- int done = 0; -- yaffs_Object *hardList = NULL; -+ dev->n_gc_copies++; - -- while (ok && !done) { -- ok = (yaffs_CheckpointRead(dev, &cp, sizeof(cp)) == sizeof(cp)); -- if (cp.structType != sizeof(cp)) { -- T(YAFFS_TRACE_CHECKPOINT, (TSTR("struct size %d instead of %d ok %d"TENDSTR), -- cp.structType, sizeof(cp), ok)); -- ok = 0; -- } -- -- T(YAFFS_TRACE_CHECKPOINT, (TSTR("Checkpoint read object %d parent %d type %d chunk %d " TENDSTR), -- cp.objectId, cp.parentId, cp.variantType, cp.hdrChunk)); -- -- if (ok && cp.objectId == ~0) -- done = 1; -- else if (ok) { -- obj = yaffs_FindOrCreateObjectByNumber(dev, cp.objectId, cp.variantType); -- if (obj) { -- ok = yaffs_CheckpointObjectToObject(obj, &cp); -- if (!ok) -- break; -- if (obj->variantType == YAFFS_OBJECT_TYPE_FILE) { -- ok = yaffs_ReadCheckpointTnodes(obj); -- } else if (obj->variantType == YAFFS_OBJECT_TYPE_HARDLINK) { -- obj->hardLinks.next = -- (struct ylist_head *) hardList; -- hardList = obj; -- } -- } else -- ok = 0; -- } -- } -+ if (tags.chunk_id == 0) { -+ /* It is an object Id, -+ * We need to nuke the shrinkheader flags first -+ * Also need to clean up shadowing. -+ * We no longer want the shrinkHeader flag since its work is done -+ * and if it is left in place it will mess up scanning. -+ */ - -- if (ok) -- yaffs_HardlinkFixup(dev, hardList); -+ yaffs_obj_header *oh; -+ oh = (yaffs_obj_header *)buffer; - -- return ok ? 1 : 0; --} -+ oh->is_shrink = 0; -+ tags.extra_is_shrink = 0; - --static int yaffs_WriteCheckpointSum(yaffs_Device *dev) --{ -- __u32 checkpointSum; -- int ok; -+ oh->shadows_obj = 0; -+ oh->inband_shadowed_obj_id = 0; -+ tags.extra_shadows = 0; -+ -+ /* Update file size */ -+ if(object->variant_type == YAFFS_OBJECT_TYPE_FILE){ -+ oh->file_size = object->variant.file_variant.file_size; -+ tags.extra_length = oh->file_size; -+ } -+ -+ yaffs_verify_oh(object, oh, &tags, 1); -+ newChunk = -+ yaffs_write_new_chunk(dev,(__u8 *) oh, &tags, 1); -+ } else -+ newChunk = -+ yaffs_write_new_chunk(dev, buffer, &tags, 1); -+ -+ if (newChunk < 0) { -+ retVal = YAFFS_FAIL; -+ } else { - -- yaffs_GetCheckpointSum(dev, &checkpointSum); -+ /* Ok, now fix up the Tnodes etc. */ - -- ok = (yaffs_CheckpointWrite(dev, &checkpointSum, sizeof(checkpointSum)) == sizeof(checkpointSum)); -+ if (tags.chunk_id == 0) { -+ /* It's a header */ -+ object->hdr_chunk = newChunk; -+ object->serial = tags.serial_number; -+ } else { -+ /* It's a data chunk */ -+ int ok; -+ ok = yaffs_put_chunk_in_file -+ (object, -+ tags.chunk_id, -+ newChunk, 0); -+ } -+ } -+ } - -- if (!ok) -- return 0; -+ if (retVal == YAFFS_OK) -+ yaffs_chunk_del(dev, oldChunk, mark_flash, __LINE__); - -- return 1; --} -+ } -+ } - --static int yaffs_ReadCheckpointSum(yaffs_Device *dev) --{ -- __u32 checkpointSum0; -- __u32 checkpointSum1; -- int ok; -+ yaffs_release_temp_buffer(dev, buffer, __LINE__); - -- yaffs_GetCheckpointSum(dev, &checkpointSum0); - -- ok = (yaffs_CheckpointRead(dev, &checkpointSum1, sizeof(checkpointSum1)) == sizeof(checkpointSum1)); - -- if (!ok) -- return 0; -+ } - -- if (checkpointSum0 != checkpointSum1) -- return 0; -+ yaffs_verify_collected_blk(dev, bi, block); - -- return 1; --} - - --static int yaffs_WriteCheckpointData(yaffs_Device *dev) --{ -- int ok = 1; -+ if (bi->block_state == YAFFS_BLOCK_STATE_COLLECTING) { -+ /* -+ * The gc did not complete. Set block state back to FULL -+ * because checkpointing does not restore gc. -+ */ -+ bi->block_state = YAFFS_BLOCK_STATE_FULL; -+ } else { -+ /* The gc completed. */ -+ /* Do any required cleanups */ -+ for (i = 0; i < dev->n_clean_ups; i++) { -+ /* Time to delete the file too */ -+ object = -+ yaffs_find_by_number(dev, -+ dev->gc_cleanup_list[i]); -+ if (object) { -+ yaffs_free_tnode(dev, -+ object->variant.file_variant. -+ top); -+ object->variant.file_variant.top = NULL; -+ T(YAFFS_TRACE_GC, -+ (TSTR -+ ("yaffs: About to finally delete object %d" -+ TENDSTR), object->obj_id)); -+ yaffs_generic_obj_del(object); -+ object->my_dev->n_deleted_files--; -+ } - -- if (dev->skipCheckpointWrite || !dev->isYaffs2) { -- T(YAFFS_TRACE_CHECKPOINT, (TSTR("skipping checkpoint write" TENDSTR))); -- ok = 0; -- } -+ } - -- if (ok) -- ok = yaffs_CheckpointOpen(dev, 1); - -- if (ok) { -- T(YAFFS_TRACE_CHECKPOINT, (TSTR("write checkpoint validity" TENDSTR))); -- ok = yaffs_WriteCheckpointValidityMarker(dev, 1); -- } -- if (ok) { -- T(YAFFS_TRACE_CHECKPOINT, (TSTR("write checkpoint device" TENDSTR))); -- ok = yaffs_WriteCheckpointDevice(dev); -- } -- if (ok) { -- T(YAFFS_TRACE_CHECKPOINT, (TSTR("write checkpoint objects" TENDSTR))); -- ok = yaffs_WriteCheckpointObjects(dev); -- } -- if (ok) { -- T(YAFFS_TRACE_CHECKPOINT, (TSTR("write checkpoint validity" TENDSTR))); -- ok = yaffs_WriteCheckpointValidityMarker(dev, 0); -+ chunksAfter = yaffs_get_erased_chunks(dev); -+ if (chunksBefore >= chunksAfter) { -+ T(YAFFS_TRACE_GC, -+ (TSTR -+ ("gc did not increase free chunks before %d after %d" -+ TENDSTR), chunksBefore, chunksAfter)); -+ } -+ dev->gc_block = 0; -+ dev->gc_chunk = 0; -+ dev->n_clean_ups = 0; - } - -- if (ok) -- ok = yaffs_WriteCheckpointSum(dev); -- -- if (!yaffs_CheckpointClose(dev)) -- ok = 0; -- -- if (ok) -- dev->isCheckpointed = 1; -- else -- dev->isCheckpointed = 0; -+ dev->gc_disable = 0; - -- return dev->isCheckpointed; -+ return retVal; - } - --static int yaffs_ReadCheckpointData(yaffs_Device *dev) -+/* -+ * FindBlockForgarbageCollection is used to select the dirtiest block (or close enough) -+ * for garbage collection. -+ */ -+ -+static unsigned yaffs_find_gc_block(yaffs_dev_t *dev, -+ int aggressive, -+ int background) - { -- int ok = 1; -+ int i; -+ int iterations; -+ unsigned selected = 0; -+ int prioritised = 0; -+ int prioritisedExists = 0; -+ yaffs_block_info_t *bi; -+ int threshold; - -- if (dev->skipCheckpointRead || !dev->isYaffs2) { -- T(YAFFS_TRACE_CHECKPOINT, (TSTR("skipping checkpoint read" TENDSTR))); -- ok = 0; -- } -+ /* First let's see if we need to grab a prioritised block */ -+ if (dev->has_pending_prioritised_gc && !aggressive) { -+ dev->gc_dirtiest = 0; -+ bi = dev->block_info; -+ for (i = dev->internal_start_block; -+ i <= dev->internal_end_block && !selected; -+ i++) { -+ -+ if (bi->gc_prioritise) { -+ prioritisedExists = 1; -+ if (bi->block_state == YAFFS_BLOCK_STATE_FULL && -+ yaffs_block_ok_for_gc(dev, bi)) { -+ selected = i; -+ prioritised = 1; -+ } -+ } -+ bi++; -+ } - -- if (ok) -- ok = yaffs_CheckpointOpen(dev, 0); /* open for read */ -+ /* -+ * If there is a prioritised block and none was selected then -+ * this happened because there is at least one old dirty block gumming -+ * up the works. Let's gc the oldest dirty block. -+ */ - -- if (ok) { -- T(YAFFS_TRACE_CHECKPOINT, (TSTR("read checkpoint validity" TENDSTR))); -- ok = yaffs_ReadCheckpointValidityMarker(dev, 1); -- } -- if (ok) { -- T(YAFFS_TRACE_CHECKPOINT, (TSTR("read checkpoint device" TENDSTR))); -- ok = yaffs_ReadCheckpointDevice(dev); -- } -- if (ok) { -- T(YAFFS_TRACE_CHECKPOINT, (TSTR("read checkpoint objects" TENDSTR))); -- ok = yaffs_ReadCheckpointObjects(dev); -- } -- if (ok) { -- T(YAFFS_TRACE_CHECKPOINT, (TSTR("read checkpoint validity" TENDSTR))); -- ok = yaffs_ReadCheckpointValidityMarker(dev, 0); -- } -+ if(prioritisedExists && -+ !selected && -+ dev->oldest_dirty_block > 0) -+ selected = dev->oldest_dirty_block; - -- if (ok) { -- ok = yaffs_ReadCheckpointSum(dev); -- T(YAFFS_TRACE_CHECKPOINT, (TSTR("read checkpoint checksum %d" TENDSTR), ok)); -+ if (!prioritisedExists) /* None found, so we can clear this */ -+ dev->has_pending_prioritised_gc = 0; - } - -- if (!yaffs_CheckpointClose(dev)) -- ok = 0; -- -- if (ok) -- dev->isCheckpointed = 1; -- else -- dev->isCheckpointed = 0; -- -- return ok ? 1 : 0; -+ /* If we're doing aggressive GC then we are happy to take a less-dirty block, and -+ * search harder. -+ * else (we're doing a leasurely gc), then we only bother to do this if the -+ * block has only a few pages in use. -+ */ - --} -+ if (!selected){ -+ int pagesUsed; -+ int nBlocks = dev->internal_end_block - dev->internal_start_block + 1; -+ if (aggressive){ -+ threshold = dev->param.chunks_per_block; -+ iterations = nBlocks; -+ } else { -+ int maxThreshold; - --static void yaffs_InvalidateCheckpoint(yaffs_Device *dev) --{ -- if (dev->isCheckpointed || -- dev->blocksInCheckpoint > 0) { -- dev->isCheckpointed = 0; -- yaffs_CheckpointInvalidateStream(dev); -- if (dev->superBlock && dev->markSuperBlockDirty) -- dev->markSuperBlockDirty(dev->superBlock); -- } --} -+ if(background) -+ maxThreshold = dev->param.chunks_per_block/2; -+ else -+ maxThreshold = dev->param.chunks_per_block/8; - -+ if(maxThreshold < YAFFS_GC_PASSIVE_THRESHOLD) -+ maxThreshold = YAFFS_GC_PASSIVE_THRESHOLD; - --int yaffs_CheckpointSave(yaffs_Device *dev) --{ -+ threshold = background ? -+ (dev->gc_not_done + 2) * 2 : 0; -+ if(threshold maxThreshold) -+ threshold = maxThreshold; - -- T(YAFFS_TRACE_CHECKPOINT, (TSTR("save entry: isCheckpointed %d"TENDSTR), dev->isCheckpointed)); -+ iterations = nBlocks / 16 + 1; -+ if (iterations > 100) -+ iterations = 100; -+ } - -- yaffs_VerifyObjects(dev); -- yaffs_VerifyBlocks(dev); -- yaffs_VerifyFreeChunks(dev); -+ for (i = 0; -+ i < iterations && -+ (dev->gc_dirtiest < 1 || -+ dev->gc_pages_in_use > YAFFS_GC_GOOD_ENOUGH); -+ i++) { -+ dev->gc_block_finder++; -+ if (dev->gc_block_finder < dev->internal_start_block || -+ dev->gc_block_finder > dev->internal_end_block) -+ dev->gc_block_finder = dev->internal_start_block; - -- if (!dev->isCheckpointed) { -- yaffs_InvalidateCheckpoint(dev); -- yaffs_WriteCheckpointData(dev); -- } -+ bi = yaffs_get_block_info(dev, dev->gc_block_finder); - -- T(YAFFS_TRACE_ALWAYS, (TSTR("save exit: isCheckpointed %d"TENDSTR), dev->isCheckpointed)); -+ pagesUsed = bi->pages_in_use - bi->soft_del_pages; - -- return dev->isCheckpointed; --} -+ if (bi->block_state == YAFFS_BLOCK_STATE_FULL && -+ pagesUsed < dev->param.chunks_per_block && -+ (dev->gc_dirtiest < 1 || pagesUsed < dev->gc_pages_in_use) && -+ yaffs_block_ok_for_gc(dev, bi)) { -+ dev->gc_dirtiest = dev->gc_block_finder; -+ dev->gc_pages_in_use = pagesUsed; -+ } -+ } - --int yaffs_CheckpointRestore(yaffs_Device *dev) --{ -- int retval; -- T(YAFFS_TRACE_CHECKPOINT, (TSTR("restore entry: isCheckpointed %d"TENDSTR), dev->isCheckpointed)); -+ if(dev->gc_dirtiest > 0 && dev->gc_pages_in_use <= threshold) -+ selected = dev->gc_dirtiest; -+ } - -- retval = yaffs_ReadCheckpointData(dev); -+ /* -+ * If nothing has been selected for a while, try selecting the oldest dirty -+ * because that's gumming up the works. -+ */ - -- if (dev->isCheckpointed) { -- yaffs_VerifyObjects(dev); -- yaffs_VerifyBlocks(dev); -- yaffs_VerifyFreeChunks(dev); -+ if(!selected && dev->param.is_yaffs2 && -+ dev->gc_not_done >= ( background ? 10 : 20)){ -+ yaffs2_find_oldest_dirty_seq(dev); -+ if(dev->oldest_dirty_block > 0) { -+ selected = dev->oldest_dirty_block; -+ dev->gc_dirtiest = selected; -+ dev->oldest_dirty_gc_count++; -+ bi = yaffs_get_block_info(dev, selected); -+ dev->gc_pages_in_use = bi->pages_in_use - bi->soft_del_pages; -+ } else -+ dev->gc_not_done = 0; - } - -- T(YAFFS_TRACE_CHECKPOINT, (TSTR("restore exit: isCheckpointed %d"TENDSTR), dev->isCheckpointed)); -+ if(selected){ -+ T(YAFFS_TRACE_GC, -+ (TSTR("GC Selected block %d with %d free, prioritised:%d" TENDSTR), -+ selected, -+ dev->param.chunks_per_block - dev->gc_pages_in_use, -+ prioritised)); -+ -+ dev->n_gc_blocks++; -+ if(background) -+ dev->bg_gcs++; -+ -+ dev->gc_dirtiest = 0; -+ dev->gc_pages_in_use = 0; -+ dev->gc_not_done = 0; -+ if(dev->refresh_skip > 0) -+ dev->refresh_skip--; -+ } else{ -+ dev->gc_not_done++; -+ T(YAFFS_TRACE_GC, -+ (TSTR("GC none: finder %d skip %d threshold %d dirtiest %d using %d oldest %d%s" TENDSTR), -+ dev->gc_block_finder, dev->gc_not_done, -+ threshold, -+ dev->gc_dirtiest, dev->gc_pages_in_use, -+ dev->oldest_dirty_block, -+ background ? " bg" : "")); -+ } - -- return retval; -+ return selected; - } - --/*--------------------- File read/write ------------------------ -- * Read and write have very similar structures. -- * In general the read/write has three parts to it -- * An incomplete chunk to start with (if the read/write is not chunk-aligned) -- * Some complete chunks -- * An incomplete chunk to end off with -+/* New garbage collector -+ * If we're very low on erased blocks then we do aggressive garbage collection -+ * otherwise we do "leasurely" garbage collection. -+ * Aggressive gc looks further (whole array) and will accept less dirty blocks. -+ * Passive gc only inspects smaller areas and will only accept more dirty blocks. - * -- * Curve-balls: the first chunk might also be the last chunk. -+ * The idea is to help clear out space in a more spread-out manner. -+ * Dunno if it really does anything useful. - */ -- --int yaffs_ReadDataFromFile(yaffs_Object *in, __u8 *buffer, loff_t offset, -- int nBytes) -+static int yaffs_check_gc(yaffs_dev_t *dev, int background) - { -+ int aggressive = 0; -+ int gcOk = YAFFS_OK; -+ int maxTries = 0; -+ int minErased; -+ int erasedChunks; -+ int checkpointBlockAdjust; - -- int chunk; -- __u32 start; -- int nToCopy; -- int n = nBytes; -- int nDone = 0; -- yaffs_ChunkCache *cache; -- -- yaffs_Device *dev; -- -- dev = in->myDev; -- -- while (n > 0) { -- /* chunk = offset / dev->nDataBytesPerChunk + 1; */ -- /* start = offset % dev->nDataBytesPerChunk; */ -- yaffs_AddrToChunk(dev, offset, &chunk, &start); -- chunk++; -- -- /* OK now check for the curveball where the start and end are in -- * the same chunk. -- */ -- if ((start + n) < dev->nDataBytesPerChunk) -- nToCopy = n; -- else -- nToCopy = dev->nDataBytesPerChunk - start; -- -- cache = yaffs_FindChunkCache(in, chunk); -- -- /* If the chunk is already in the cache or it is less than a whole chunk -- * or we're using inband tags then use the cache (if there is caching) -- * else bypass the cache. -- */ -- if (cache || nToCopy != dev->nDataBytesPerChunk || dev->inbandTags) { -- if (dev->nShortOpCaches > 0) { -- -- /* If we can't find the data in the cache, then load it up. */ -+ if(dev->param.gc_control && -+ (dev->param.gc_control(dev) & 1) == 0) -+ return YAFFS_OK; - -- if (!cache) { -- cache = yaffs_GrabChunkCache(in->myDev); -- cache->object = in; -- cache->chunkId = chunk; -- cache->dirty = 0; -- cache->locked = 0; -- yaffs_ReadChunkDataFromObject(in, chunk, -- cache-> -- data); -- cache->nBytes = 0; -- } -+ if (dev->gc_disable) { -+ /* Bail out so we don't get recursive gc */ -+ return YAFFS_OK; -+ } - -- yaffs_UseChunkCache(dev, cache, 0); -+ /* This loop should pass the first time. -+ * We'll only see looping here if the collection does not increase space. -+ */ - -- cache->locked = 1; -+ do { -+ maxTries++; - -+ checkpointBlockAdjust = yaffs_calc_checkpt_blocks_required(dev); - -- memcpy(buffer, &cache->data[start], nToCopy); -+ minErased = dev->param.n_reserved_blocks + checkpointBlockAdjust + 1; -+ erasedChunks = dev->n_erased_blocks * dev->param.chunks_per_block; - -- cache->locked = 0; -- } else { -- /* Read into the local buffer then copy..*/ -+ /* If we need a block soon then do aggressive gc.*/ -+ if (dev->n_erased_blocks < minErased) -+ aggressive = 1; -+ else { -+ if(!background && erasedChunks > (dev->n_free_chunks / 4)) -+ break; - -- __u8 *localBuffer = -- yaffs_GetTempBuffer(dev, __LINE__); -- yaffs_ReadChunkDataFromObject(in, chunk, -- localBuffer); -+ if(dev->gc_skip > 20) -+ dev->gc_skip = 20; -+ if(erasedChunks < dev->n_free_chunks/2 || -+ dev->gc_skip < 1 || -+ background) -+ aggressive = 0; -+ else { -+ dev->gc_skip--; -+ break; -+ } -+ } - -- memcpy(buffer, &localBuffer[start], nToCopy); -+ dev->gc_skip = 5; - -+ /* If we don't already have a block being gc'd then see if we should start another */ - -- yaffs_ReleaseTempBuffer(dev, localBuffer, -- __LINE__); -- } -+ if (dev->gc_block < 1 && !aggressive) { -+ dev->gc_block = yaffs2_find_refresh_block(dev); -+ dev->gc_chunk = 0; -+ dev->n_clean_ups=0; -+ } -+ if (dev->gc_block < 1) { -+ dev->gc_block = yaffs_find_gc_block(dev, aggressive, background); -+ dev->gc_chunk = 0; -+ dev->n_clean_ups=0; -+ } - -- } else { -+ if (dev->gc_block > 0) { -+ dev->all_gcs++; -+ if (!aggressive) -+ dev->passive_gc_count++; - -- /* A full chunk. Read directly into the supplied buffer. */ -- yaffs_ReadChunkDataFromObject(in, chunk, buffer); -+ T(YAFFS_TRACE_GC, -+ (TSTR -+ ("yaffs: GC erasedBlocks %d aggressive %d" TENDSTR), -+ dev->n_erased_blocks, aggressive)); - -+ gcOk = yaffs_gc_block(dev, dev->gc_block, aggressive); - } - -- n -= nToCopy; -- offset += nToCopy; -- buffer += nToCopy; -- nDone += nToCopy; -- -- } -+ if (dev->n_erased_blocks < (dev->param.n_reserved_blocks) && dev->gc_block > 0) { -+ T(YAFFS_TRACE_GC, -+ (TSTR -+ ("yaffs: GC !!!no reclaim!!! erasedBlocks %d after try %d block %d" -+ TENDSTR), dev->n_erased_blocks, maxTries, dev->gc_block)); -+ } -+ } while ((dev->n_erased_blocks < dev->param.n_reserved_blocks) && -+ (dev->gc_block > 0) && -+ (maxTries < 2)); - -- return nDone; -+ return aggressive ? gcOk : YAFFS_OK; - } - --int yaffs_WriteDataToFile(yaffs_Object *in, const __u8 *buffer, loff_t offset, -- int nBytes, int writeThrough) -+/* -+ * yaffs_bg_gc() -+ * Garbage collects. Intended to be called from a background thread. -+ * Returns non-zero if at least half the free chunks are erased. -+ */ -+int yaffs_bg_gc(yaffs_dev_t *dev, unsigned urgency) - { -+ int erasedChunks = dev->n_erased_blocks * dev->param.chunks_per_block; - -- int chunk; -- __u32 start; -- int nToCopy; -- int n = nBytes; -- int nDone = 0; -- int nToWriteBack; -- int startOfWrite = offset; -- int chunkWritten = 0; -- __u32 nBytesRead; -- __u32 chunkStart; -+ T(YAFFS_TRACE_BACKGROUND, (TSTR("Background gc %u" TENDSTR),urgency)); - -- yaffs_Device *dev; -+ yaffs_check_gc(dev, 1); -+ return erasedChunks > dev->n_free_chunks/2; -+} - -- dev = in->myDev; -+/*------------------------- TAGS --------------------------------*/ - -- while (n > 0 && chunkWritten >= 0) { -- /* chunk = offset / dev->nDataBytesPerChunk + 1; */ -- /* start = offset % dev->nDataBytesPerChunk; */ -- yaffs_AddrToChunk(dev, offset, &chunk, &start); -+static int yaffs_tags_match(const yaffs_ext_tags *tags, int obj_id, -+ int chunkInObject) -+{ -+ return (tags->chunk_id == chunkInObject && -+ tags->obj_id == obj_id && !tags->is_deleted) ? 1 : 0; - -- if (chunk * dev->nDataBytesPerChunk + start != offset || -- start >= dev->nDataBytesPerChunk) { -- T(YAFFS_TRACE_ERROR, ( -- TSTR("AddrToChunk of offset %d gives chunk %d start %d" -- TENDSTR), -- (int)offset, chunk, start)); -- } -- chunk++; -+} - -- /* OK now check for the curveball where the start and end are in -- * the same chunk. -- */ - -- if ((start + n) < dev->nDataBytesPerChunk) { -- nToCopy = n; -+/*-------------------- Data file manipulation -----------------*/ - -- /* Now folks, to calculate how many bytes to write back.... -- * If we're overwriting and not writing to then end of file then -- * we need to write back as much as was there before. -- */ -+static int yaffs_find_chunk_in_file(yaffs_obj_t *in, int inode_chunk, -+ yaffs_ext_tags *tags) -+{ -+ /*Get the Tnode, then get the level 0 offset chunk offset */ -+ yaffs_tnode_t *tn; -+ int theChunk = -1; -+ yaffs_ext_tags localTags; -+ int retVal = -1; - -- chunkStart = ((chunk - 1) * dev->nDataBytesPerChunk); -+ yaffs_dev_t *dev = in->my_dev; - -- if (chunkStart > in->variant.fileVariant.fileSize) -- nBytesRead = 0; /* Past end of file */ -- else -- nBytesRead = in->variant.fileVariant.fileSize - chunkStart; -+ if (!tags) { -+ /* Passed a NULL, so use our own tags space */ -+ tags = &localTags; -+ } - -- if (nBytesRead > dev->nDataBytesPerChunk) -- nBytesRead = dev->nDataBytesPerChunk; -+ tn = yaffs_find_tnode_0(dev, &in->variant.file_variant, inode_chunk); - -- nToWriteBack = -- (nBytesRead > -- (start + n)) ? nBytesRead : (start + n); -+ if (tn) { -+ theChunk = yaffs_get_group_base(dev, tn, inode_chunk); - -- if (nToWriteBack < 0 || nToWriteBack > dev->nDataBytesPerChunk) -- YBUG(); -+ retVal = -+ yaffs_find_chunk_in_group(dev, theChunk, tags, in->obj_id, -+ inode_chunk); -+ } -+ return retVal; -+} - -- } else { -- nToCopy = dev->nDataBytesPerChunk - start; -- nToWriteBack = dev->nDataBytesPerChunk; -- } -+static int yaffs_find_del_file_chunk(yaffs_obj_t *in, int inode_chunk, -+ yaffs_ext_tags *tags) -+{ -+ /* Get the Tnode, then get the level 0 offset chunk offset */ -+ yaffs_tnode_t *tn; -+ int theChunk = -1; -+ yaffs_ext_tags localTags; - -- if (nToCopy != dev->nDataBytesPerChunk || dev->inbandTags) { -- /* An incomplete start or end chunk (or maybe both start and end chunk), -- * or we're using inband tags, so we want to use the cache buffers. -- */ -- if (dev->nShortOpCaches > 0) { -- yaffs_ChunkCache *cache; -- /* If we can't find the data in the cache, then load the cache */ -- cache = yaffs_FindChunkCache(in, chunk); -+ yaffs_dev_t *dev = in->my_dev; -+ int retVal = -1; - -- if (!cache -- && yaffs_CheckSpaceForAllocation(in-> -- myDev)) { -- cache = yaffs_GrabChunkCache(in->myDev); -- cache->object = in; -- cache->chunkId = chunk; -- cache->dirty = 0; -- cache->locked = 0; -- yaffs_ReadChunkDataFromObject(in, chunk, -- cache-> -- data); -- } else if (cache && -- !cache->dirty && -- !yaffs_CheckSpaceForAllocation(in->myDev)) { -- /* Drop the cache if it was a read cache item and -- * no space check has been made for it. -- */ -- cache = NULL; -- } -+ if (!tags) { -+ /* Passed a NULL, so use our own tags space */ -+ tags = &localTags; -+ } - -- if (cache) { -- yaffs_UseChunkCache(dev, cache, 1); -- cache->locked = 1; -+ tn = yaffs_find_tnode_0(dev, &in->variant.file_variant, inode_chunk); - -+ if (tn) { - -- memcpy(&cache->data[start], buffer, -- nToCopy); -+ theChunk = yaffs_get_group_base(dev, tn, inode_chunk); - -+ retVal = -+ yaffs_find_chunk_in_group(dev, theChunk, tags, in->obj_id, -+ inode_chunk); - -- cache->locked = 0; -- cache->nBytes = nToWriteBack; -+ /* Delete the entry in the filestructure (if found) */ -+ if (retVal != -1) -+ yaffs_load_tnode_0(dev, tn, inode_chunk, 0); -+ } - -- if (writeThrough) { -- chunkWritten = -- yaffs_WriteChunkDataToObject -- (cache->object, -- cache->chunkId, -- cache->data, cache->nBytes, -- 1); -- cache->dirty = 0; -- } -+ return retVal; -+} - -- } else { -- chunkWritten = -1; /* fail the write */ -- } -- } else { -- /* An incomplete start or end chunk (or maybe both start and end chunk) -- * Read into the local buffer then copy, then copy over and write back. -- */ - -- __u8 *localBuffer = -- yaffs_GetTempBuffer(dev, __LINE__); -+int yaffs_put_chunk_in_file(yaffs_obj_t *in, int inode_chunk, -+ int nand_chunk, int in_scan) -+{ -+ /* NB in_scan is zero unless scanning. -+ * For forward scanning, in_scan is > 0; -+ * for backward scanning in_scan is < 0 -+ * -+ * nand_chunk = 0 is a dummy insert to make sure the tnodes are there. -+ */ - -- yaffs_ReadChunkDataFromObject(in, chunk, -- localBuffer); -+ yaffs_tnode_t *tn; -+ yaffs_dev_t *dev = in->my_dev; -+ int existingChunk; -+ yaffs_ext_tags existingTags; -+ yaffs_ext_tags newTags; -+ unsigned existingSerial, newSerial; - -+ if (in->variant_type != YAFFS_OBJECT_TYPE_FILE) { -+ /* Just ignore an attempt at putting a chunk into a non-file during scanning -+ * If it is not during Scanning then something went wrong! -+ */ -+ if (!in_scan) { -+ T(YAFFS_TRACE_ERROR, -+ (TSTR -+ ("yaffs tragedy:attempt to put data chunk into a non-file" -+ TENDSTR))); -+ YBUG(); -+ } - -+ yaffs_chunk_del(dev, nand_chunk, 1, __LINE__); -+ return YAFFS_OK; -+ } - -- memcpy(&localBuffer[start], buffer, nToCopy); -+ tn = yaffs_add_find_tnode_0(dev, -+ &in->variant.file_variant, -+ inode_chunk, -+ NULL); -+ if (!tn) -+ return YAFFS_FAIL; -+ -+ if(!nand_chunk) -+ /* Dummy insert, bail now */ -+ return YAFFS_OK; - -- chunkWritten = -- yaffs_WriteChunkDataToObject(in, chunk, -- localBuffer, -- nToWriteBack, -- 0); -+ existingChunk = yaffs_get_group_base(dev, tn, inode_chunk); - -- yaffs_ReleaseTempBuffer(dev, localBuffer, -- __LINE__); -+ if (in_scan != 0) { -+ /* If we're scanning then we need to test for duplicates -+ * NB This does not need to be efficient since it should only ever -+ * happen when the power fails during a write, then only one -+ * chunk should ever be affected. -+ * -+ * Correction for YAFFS2: This could happen quite a lot and we need to think about efficiency! TODO -+ * Update: For backward scanning we don't need to re-read tags so this is quite cheap. -+ */ -+ -+ if (existingChunk > 0) { -+ /* NB Right now existing chunk will not be real chunk_id if the chunk group size > 1 -+ * thus we have to do a FindChunkInFile to get the real chunk id. -+ * -+ * We have a duplicate now we need to decide which one to use: -+ * -+ * Backwards scanning YAFFS2: The old one is what we use, dump the new one. -+ * Forward scanning YAFFS2: The new one is what we use, dump the old one. -+ * YAFFS1: Get both sets of tags and compare serial numbers. -+ */ -+ -+ if (in_scan > 0) { -+ /* Only do this for forward scanning */ -+ yaffs_rd_chunk_tags_nand(dev, -+ nand_chunk, -+ NULL, &newTags); - -+ /* Do a proper find */ -+ existingChunk = -+ yaffs_find_chunk_in_file(in, inode_chunk, -+ &existingTags); - } - -- } else { -- /* A full chunk. Write directly from the supplied buffer. */ -+ if (existingChunk <= 0) { -+ /*Hoosterman - how did this happen? */ - -+ T(YAFFS_TRACE_ERROR, -+ (TSTR -+ ("yaffs tragedy: existing chunk < 0 in scan" -+ TENDSTR))); - -+ } - -- chunkWritten = -- yaffs_WriteChunkDataToObject(in, chunk, buffer, -- dev->nDataBytesPerChunk, -- 0); -+ /* NB The deleted flags should be false, otherwise the chunks will -+ * not be loaded during a scan -+ */ - -- /* Since we've overwritten the cached data, we better invalidate it. */ -- yaffs_InvalidateChunkCache(in, chunk); -- } -+ if (in_scan > 0) { -+ newSerial = newTags.serial_number; -+ existingSerial = existingTags.serial_number; -+ } - -- if (chunkWritten >= 0) { -- n -= nToCopy; -- offset += nToCopy; -- buffer += nToCopy; -- nDone += nToCopy; -+ if ((in_scan > 0) && -+ (existingChunk <= 0 || -+ ((existingSerial + 1) & 3) == newSerial)) { -+ /* Forward scanning. -+ * Use new -+ * Delete the old one and drop through to update the tnode -+ */ -+ yaffs_chunk_del(dev, existingChunk, 1, -+ __LINE__); -+ } else { -+ /* Backward scanning or we want to use the existing one -+ * Use existing. -+ * Delete the new one and return early so that the tnode isn't changed -+ */ -+ yaffs_chunk_del(dev, nand_chunk, 1, -+ __LINE__); -+ return YAFFS_OK; -+ } - } - - } - -- /* Update file object */ -- -- if ((startOfWrite + nDone) > in->variant.fileVariant.fileSize) -- in->variant.fileVariant.fileSize = (startOfWrite + nDone); -+ if (existingChunk == 0) -+ in->n_data_chunks++; - -- in->dirty = 1; -+ yaffs_load_tnode_0(dev, tn, inode_chunk, nand_chunk); - -- return nDone; -+ return YAFFS_OK; - } - -+static int yaffs_rd_data_obj(yaffs_obj_t *in, int inode_chunk, -+ __u8 *buffer) -+{ -+ int nand_chunk = yaffs_find_chunk_in_file(in, inode_chunk, NULL); - --/* ---------------------- File resizing stuff ------------------ */ -+ if (nand_chunk >= 0) -+ return yaffs_rd_chunk_tags_nand(in->my_dev, nand_chunk, -+ buffer, NULL); -+ else { -+ T(YAFFS_TRACE_NANDACCESS, -+ (TSTR("Chunk %d not found zero instead" TENDSTR), -+ nand_chunk)); -+ /* get sane (zero) data if you read a hole */ -+ memset(buffer, 0, in->my_dev->data_bytes_per_chunk); -+ return 0; -+ } -+ -+} - --static void yaffs_PruneResizedChunks(yaffs_Object *in, int newSize) -+void yaffs_chunk_del(yaffs_dev_t *dev, int chunk_id, int mark_flash, int lyn) - { -+ int block; -+ int page; -+ yaffs_ext_tags tags; -+ yaffs_block_info_t *bi; - -- yaffs_Device *dev = in->myDev; -- int oldFileSize = in->variant.fileVariant.fileSize; -+ if (chunk_id <= 0) -+ return; - -- int lastDel = 1 + (oldFileSize - 1) / dev->nDataBytesPerChunk; -+ dev->n_deletions++; -+ block = chunk_id / dev->param.chunks_per_block; -+ page = chunk_id % dev->param.chunks_per_block; - -- int startDel = 1 + (newSize + dev->nDataBytesPerChunk - 1) / -- dev->nDataBytesPerChunk; -- int i; -- int chunkId; - -- /* Delete backwards so that we don't end up with holes if -- * power is lost part-way through the operation. -+ if (!yaffs_check_chunk_bit(dev, block, page)) -+ T(YAFFS_TRACE_VERIFY, -+ (TSTR("Deleting invalid chunk %d"TENDSTR), -+ chunk_id)); -+ -+ bi = yaffs_get_block_info(dev, block); -+ -+ yaffs2_update_oldest_dirty_seq(dev, block, bi); -+ -+ T(YAFFS_TRACE_DELETION, -+ (TSTR("line %d delete of chunk %d" TENDSTR), lyn, chunk_id)); -+ -+ if (!dev->param.is_yaffs2 && mark_flash && -+ bi->block_state != YAFFS_BLOCK_STATE_COLLECTING) { -+ -+ yaffs_init_tags(&tags); -+ -+ tags.is_deleted = 1; -+ -+ yaffs_wr_chunk_tags_nand(dev, chunk_id, NULL, &tags); -+ yaffs_handle_chunk_update(dev, chunk_id, &tags); -+ } else { -+ dev->n_unmarked_deletions++; -+ } -+ -+ /* Pull out of the management area. -+ * If the whole block became dirty, this will kick off an erasure. - */ -- for (i = lastDel; i >= startDel; i--) { -- /* NB this could be optimised somewhat, -- * eg. could retrieve the tags and write them without -- * using yaffs_DeleteChunk -- */ -+ if (bi->block_state == YAFFS_BLOCK_STATE_ALLOCATING || -+ bi->block_state == YAFFS_BLOCK_STATE_FULL || -+ bi->block_state == YAFFS_BLOCK_STATE_NEEDS_SCANNING || -+ bi->block_state == YAFFS_BLOCK_STATE_COLLECTING) { -+ dev->n_free_chunks++; - -- chunkId = yaffs_FindAndDeleteChunkInFile(in, i, NULL); -- if (chunkId > 0) { -- if (chunkId < -- (dev->internalStartBlock * dev->nChunksPerBlock) -- || chunkId >= -- ((dev->internalEndBlock + -- 1) * dev->nChunksPerBlock)) { -- T(YAFFS_TRACE_ALWAYS, -- (TSTR("Found daft chunkId %d for %d" TENDSTR), -- chunkId, i)); -- } else { -- in->nDataChunks--; -- yaffs_DeleteChunk(dev, chunkId, 1, __LINE__); -- } -+ yaffs_clear_chunk_bit(dev, block, page); -+ -+ bi->pages_in_use--; -+ -+ if (bi->pages_in_use == 0 && -+ !bi->has_shrink_hdr && -+ bi->block_state != YAFFS_BLOCK_STATE_ALLOCATING && -+ bi->block_state != YAFFS_BLOCK_STATE_NEEDS_SCANNING) { -+ yaffs_block_became_dirty(dev, block); - } -+ - } - - } - --int yaffs_ResizeFile(yaffs_Object *in, loff_t newSize) -+static int yaffs_wr_data_obj(yaffs_obj_t *in, int inode_chunk, -+ const __u8 *buffer, int n_bytes, -+ int useReserve) - { -+ /* Find old chunk Need to do this to get serial number -+ * Write new one and patch into tree. -+ * Invalidate old tags. -+ */ - -- int oldFileSize = in->variant.fileVariant.fileSize; -- __u32 newSizeOfPartialChunk; -- int newFullChunks; -+ int prevChunkId; -+ yaffs_ext_tags prevTags; - -- yaffs_Device *dev = in->myDev; -+ int newChunkId; -+ yaffs_ext_tags newTags; - -- yaffs_AddrToChunk(dev, newSize, &newFullChunks, &newSizeOfPartialChunk); -+ yaffs_dev_t *dev = in->my_dev; - -- yaffs_FlushFilesChunkCache(in); -- yaffs_InvalidateWholeChunkCache(in); -+ yaffs_check_gc(dev,0); - -- yaffs_CheckGarbageCollection(dev); -+ /* Get the previous chunk at this location in the file if it exists. -+ * If it does not exist then put a zero into the tree. This creates -+ * the tnode now, rather than later when it is harder to clean up. -+ */ -+ prevChunkId = yaffs_find_chunk_in_file(in, inode_chunk, &prevTags); -+ if(prevChunkId < 1 && -+ !yaffs_put_chunk_in_file(in, inode_chunk, 0, 0)) -+ return 0; - -- if (in->variantType != YAFFS_OBJECT_TYPE_FILE) -- return YAFFS_FAIL; -+ /* Set up new tags */ -+ yaffs_init_tags(&newTags); - -- if (newSize == oldFileSize) -- return YAFFS_OK; -+ newTags.chunk_id = inode_chunk; -+ newTags.obj_id = in->obj_id; -+ newTags.serial_number = -+ (prevChunkId > 0) ? prevTags.serial_number + 1 : 1; -+ newTags.n_bytes = n_bytes; - -- if (newSize < oldFileSize) { -+ if (n_bytes < 1 || n_bytes > dev->param.total_bytes_per_chunk) { -+ T(YAFFS_TRACE_ERROR, -+ (TSTR("Writing %d bytes to chunk!!!!!!!!!" TENDSTR), n_bytes)); -+ YBUG(); -+ } -+ -+ -+ newChunkId = -+ yaffs_write_new_chunk(dev, buffer, &newTags, -+ useReserve); - -- yaffs_PruneResizedChunks(in, newSize); -+ if (newChunkId > 0) { -+ yaffs_put_chunk_in_file(in, inode_chunk, newChunkId, 0); - -- if (newSizeOfPartialChunk != 0) { -- int lastChunk = 1 + newFullChunks; -+ if (prevChunkId > 0) -+ yaffs_chunk_del(dev, prevChunkId, 1, __LINE__); - -- __u8 *localBuffer = yaffs_GetTempBuffer(dev, __LINE__); -+ yaffs_verify_file_sane(in); -+ } -+ return newChunkId; - -- /* Got to read and rewrite the last chunk with its new size and zero pad */ -- yaffs_ReadChunkDataFromObject(in, lastChunk, -- localBuffer); -+} - -- memset(localBuffer + newSizeOfPartialChunk, 0, -- dev->nDataBytesPerChunk - newSizeOfPartialChunk); -+/* UpdateObjectHeader updates the header on NAND for an object. -+ * If name is not NULL, then that new name is used. -+ */ -+int yaffs_update_oh(yaffs_obj_t *in, const YCHAR *name, int force, -+ int is_shrink, int shadows, yaffs_xattr_mod *xmod) -+{ - -- yaffs_WriteChunkDataToObject(in, lastChunk, localBuffer, -- newSizeOfPartialChunk, 1); -+ yaffs_block_info_t *bi; - -- yaffs_ReleaseTempBuffer(dev, localBuffer, __LINE__); -- } -+ yaffs_dev_t *dev = in->my_dev; - -- in->variant.fileVariant.fileSize = newSize; -+ int prevChunkId; -+ int retVal = 0; -+ int result = 0; - -- yaffs_PruneFileStructure(dev, &in->variant.fileVariant); -- } else { -- /* newsSize > oldFileSize */ -- in->variant.fileVariant.fileSize = newSize; -- } -+ int newChunkId; -+ yaffs_ext_tags newTags; -+ yaffs_ext_tags oldTags; -+ const YCHAR *alias = NULL; - -+ __u8 *buffer = NULL; -+ YCHAR old_name[YAFFS_MAX_NAME_LENGTH + 1]; - -- /* Write a new object header. -- * show we've shrunk the file, if need be -- * Do this only if the file is not in the deleted directories. -- */ -- if (in->parent && -- in->parent->objectId != YAFFS_OBJECTID_UNLINKED && -- in->parent->objectId != YAFFS_OBJECTID_DELETED) -- yaffs_UpdateObjectHeader(in, NULL, 0, -- (newSize < oldFileSize) ? 1 : 0, 0); -+ yaffs_obj_header *oh = NULL; - -- return YAFFS_OK; --} -+ yaffs_strcpy(old_name, _Y("silly old name")); - --loff_t yaffs_GetFileSize(yaffs_Object *obj) --{ -- obj = yaffs_GetEquivalentObject(obj); - -- switch (obj->variantType) { -- case YAFFS_OBJECT_TYPE_FILE: -- return obj->variant.fileVariant.fileSize; -- case YAFFS_OBJECT_TYPE_SYMLINK: -- return yaffs_strlen(obj->variant.symLinkVariant.alias); -- default: -- return 0; -- } --} -+ if (!in->fake || -+ in == dev->root_dir || /* The root_dir should also be saved */ -+ force || xmod) { - -+ yaffs_check_gc(dev,0); -+ yaffs_check_obj_details_loaded(in); - -+ buffer = yaffs_get_temp_buffer(in->my_dev, __LINE__); -+ oh = (yaffs_obj_header *) buffer; -+ -+ prevChunkId = in->hdr_chunk; -+ -+ if (prevChunkId > 0) { -+ result = yaffs_rd_chunk_tags_nand(dev, prevChunkId, -+ buffer, &oldTags); -+ -+ yaffs_verify_oh(in, oh, &oldTags, 0); -+ -+ memcpy(old_name, oh->name, sizeof(oh->name)); -+ memset(buffer, 0xFF, sizeof(yaffs_obj_header)); -+ } else -+ memset(buffer, 0xFF, dev->data_bytes_per_chunk); -+ -+ oh->type = in->variant_type; -+ oh->yst_mode = in->yst_mode; -+ oh->shadows_obj = oh->inband_shadowed_obj_id = shadows; - --int yaffs_FlushFile(yaffs_Object *in, int updateTime) --{ -- int retVal; -- if (in->dirty) { -- yaffs_FlushFilesChunkCache(in); -- if (updateTime) { - #ifdef CONFIG_YAFFS_WINCE -- yfsd_WinFileTimeNow(in->win_mtime); -+ oh->win_atime[0] = in->win_atime[0]; -+ oh->win_ctime[0] = in->win_ctime[0]; -+ oh->win_mtime[0] = in->win_mtime[0]; -+ oh->win_atime[1] = in->win_atime[1]; -+ oh->win_ctime[1] = in->win_ctime[1]; -+ oh->win_mtime[1] = in->win_mtime[1]; - #else -+ oh->yst_uid = in->yst_uid; -+ oh->yst_gid = in->yst_gid; -+ oh->yst_atime = in->yst_atime; -+ oh->yst_mtime = in->yst_mtime; -+ oh->yst_ctime = in->yst_ctime; -+ oh->yst_rdev = in->yst_rdev; -+#endif -+ if (in->parent) -+ oh->parent_obj_id = in->parent->obj_id; -+ else -+ oh->parent_obj_id = 0; -+ -+ if (name && *name) { -+ memset(oh->name, 0, sizeof(oh->name)); -+ yaffs_load_oh_from_name(dev,oh->name,name); -+ } else if (prevChunkId > 0) -+ memcpy(oh->name, old_name, sizeof(oh->name)); -+ else -+ memset(oh->name, 0, sizeof(oh->name)); - -- in->yst_mtime = Y_CURRENT_TIME; -+ oh->is_shrink = is_shrink; - --#endif -+ switch (in->variant_type) { -+ case YAFFS_OBJECT_TYPE_UNKNOWN: -+ /* Should not happen */ -+ break; -+ case YAFFS_OBJECT_TYPE_FILE: -+ oh->file_size = -+ (oh->parent_obj_id == YAFFS_OBJECTID_DELETED -+ || oh->parent_obj_id == -+ YAFFS_OBJECTID_UNLINKED) ? 0 : in->variant. -+ file_variant.file_size; -+ break; -+ case YAFFS_OBJECT_TYPE_HARDLINK: -+ oh->equiv_id = -+ in->variant.hardlink_variant.equiv_id; -+ break; -+ case YAFFS_OBJECT_TYPE_SPECIAL: -+ /* Do nothing */ -+ break; -+ case YAFFS_OBJECT_TYPE_DIRECTORY: -+ /* Do nothing */ -+ break; -+ case YAFFS_OBJECT_TYPE_SYMLINK: -+ alias = in->variant.symlink_variant.alias; -+ if(!alias) -+ alias = _Y("no alias"); -+ yaffs_strncpy(oh->alias, -+ alias, -+ YAFFS_MAX_ALIAS_LENGTH); -+ oh->alias[YAFFS_MAX_ALIAS_LENGTH] = 0; -+ break; - } - -- retVal = (yaffs_UpdateObjectHeader(in, NULL, 0, 0, 0) >= -- 0) ? YAFFS_OK : YAFFS_FAIL; -- } else { -- retVal = YAFFS_OK; -- } -+ /* process any xattrib modifications */ -+ if(xmod) -+ yaffs_apply_xattrib_mod(in, (char *)buffer, xmod); - -- return retVal; - --} -+ /* Tags */ -+ yaffs_init_tags(&newTags); -+ in->serial++; -+ newTags.chunk_id = 0; -+ newTags.obj_id = in->obj_id; -+ newTags.serial_number = in->serial; - --static int yaffs_DoGenericObjectDeletion(yaffs_Object *in) --{ -+ /* Add extra info for file header */ - -- /* First off, invalidate the file's data in the cache, without flushing. */ -- yaffs_InvalidateWholeChunkCache(in); -+ newTags.extra_available = 1; -+ newTags.extra_parent_id = oh->parent_obj_id; -+ newTags.extra_length = oh->file_size; -+ newTags.extra_is_shrink = oh->is_shrink; -+ newTags.extra_equiv_id = oh->equiv_id; -+ newTags.extra_shadows = (oh->shadows_obj > 0) ? 1 : 0; -+ newTags.extra_obj_type = in->variant_type; - -- if (in->myDev->isYaffs2 && (in->parent != in->myDev->deletedDir)) { -- /* Move to the unlinked directory so we have a record that it was deleted. */ -- yaffs_ChangeObjectName(in, in->myDev->deletedDir, _Y("deleted"), 0, 0); -+ yaffs_verify_oh(in, oh, &newTags, 1); - -- } -+ /* Create new chunk in NAND */ -+ newChunkId = -+ yaffs_write_new_chunk(dev, buffer, &newTags, -+ (prevChunkId > 0) ? 1 : 0); - -- yaffs_RemoveObjectFromDirectory(in); -- yaffs_DeleteChunk(in->myDev, in->hdrChunk, 1, __LINE__); -- in->hdrChunk = 0; -+ if (newChunkId >= 0) { - -- yaffs_FreeObject(in); -- return YAFFS_OK; -+ in->hdr_chunk = newChunkId; - --} -+ if (prevChunkId > 0) { -+ yaffs_chunk_del(dev, prevChunkId, 1, -+ __LINE__); -+ } - --/* yaffs_DeleteFile deletes the whole file data -- * and the inode associated with the file. -- * It does not delete the links associated with the file. -- */ --static int yaffs_UnlinkFileIfNeeded(yaffs_Object *in) --{ -+ if (!yaffs_obj_cache_dirty(in)) -+ in->dirty = 0; - -- int retVal; -- int immediateDeletion = 0; -+ /* If this was a shrink, then mark the block that the chunk lives on */ -+ if (is_shrink) { -+ bi = yaffs_get_block_info(in->my_dev, -+ newChunkId / in->my_dev->param.chunks_per_block); -+ bi->has_shrink_hdr = 1; -+ } - --#ifdef __KERNEL__ -- if (!in->myInode) -- immediateDeletion = 1; --#else -- if (in->inUse <= 0) -- immediateDeletion = 1; --#endif -+ } -+ -+ retVal = newChunkId; - -- if (immediateDeletion) { -- retVal = -- yaffs_ChangeObjectName(in, in->myDev->deletedDir, -- _Y("deleted"), 0, 0); -- T(YAFFS_TRACE_TRACING, -- (TSTR("yaffs: immediate deletion of file %d" TENDSTR), -- in->objectId)); -- in->deleted = 1; -- in->myDev->nDeletedFiles++; -- if (1 || in->myDev->isYaffs2) -- yaffs_ResizeFile(in, 0); -- yaffs_SoftDeleteFile(in); -- } else { -- retVal = -- yaffs_ChangeObjectName(in, in->myDev->unlinkedDir, -- _Y("unlinked"), 0, 0); - } - -+ if (buffer) -+ yaffs_release_temp_buffer(dev, buffer, __LINE__); - - return retVal; - } - --int yaffs_DeleteFile(yaffs_Object *in) --{ -- int retVal = YAFFS_OK; -- int deleted = in->deleted; -- -- yaffs_ResizeFile(in, 0); -- -- if (in->nDataChunks > 0) { -- /* Use soft deletion if there is data in the file. -- * That won't be the case if it has been resized to zero. -- */ -- if (!in->unlinked) -- retVal = yaffs_UnlinkFileIfNeeded(in); -- -- if (retVal == YAFFS_OK && in->unlinked && !in->deleted) { -- in->deleted = 1; -- deleted = 1; -- in->myDev->nDeletedFiles++; -- yaffs_SoftDeleteFile(in); -- } -- return deleted ? YAFFS_OK : YAFFS_FAIL; -- } else { -- /* The file has no data chunks so we toss it immediately */ -- yaffs_FreeTnode(in->myDev, in->variant.fileVariant.top); -- in->variant.fileVariant.top = NULL; -- yaffs_DoGenericObjectDeletion(in); -- -- return YAFFS_OK; -- } --} -+/*------------------------ Short Operations Cache ---------------------------------------- -+ * In many situations where there is no high level buffering (eg WinCE) a lot of -+ * reads might be short sequential reads, and a lot of writes may be short -+ * sequential writes. eg. scanning/writing a jpeg file. -+ * In these cases, a short read/write cache can provide a huge perfomance benefit -+ * with dumb-as-a-rock code. -+ * In Linux, the page cache provides read buffering aand the short op cache provides write -+ * buffering. -+ * -+ * There are a limited number (~10) of cache chunks per device so that we don't -+ * need a very intelligent search. -+ */ - --static int yaffs_DeleteDirectory(yaffs_Object *in) -+static int yaffs_obj_cache_dirty(yaffs_obj_t *obj) - { -- /* First check that the directory is empty. */ -- if (ylist_empty(&in->variant.directoryVariant.children)) -- return yaffs_DoGenericObjectDeletion(in); -+ yaffs_dev_t *dev = obj->my_dev; -+ int i; -+ yaffs_cache_t *cache; -+ int nCaches = obj->my_dev->param.n_caches; - -- return YAFFS_FAIL; -+ for (i = 0; i < nCaches; i++) { -+ cache = &dev->cache[i]; -+ if (cache->object == obj && -+ cache->dirty) -+ return 1; -+ } - -+ return 0; - } - --static int yaffs_DeleteSymLink(yaffs_Object *in) --{ -- YFREE(in->variant.symLinkVariant.alias); -- -- return yaffs_DoGenericObjectDeletion(in); --} - --static int yaffs_DeleteHardLink(yaffs_Object *in) -+static void yaffs_flush_file_cache(yaffs_obj_t *obj) - { -- /* remove this hardlink from the list assocaited with the equivalent -- * object -- */ -- ylist_del_init(&in->hardLinks); -- return yaffs_DoGenericObjectDeletion(in); --} -+ yaffs_dev_t *dev = obj->my_dev; -+ int lowest = -99; /* Stop compiler whining. */ -+ int i; -+ yaffs_cache_t *cache; -+ int chunkWritten = 0; -+ int nCaches = obj->my_dev->param.n_caches; - --int yaffs_DeleteObject(yaffs_Object *obj) --{ --int retVal = -1; -- switch (obj->variantType) { -- case YAFFS_OBJECT_TYPE_FILE: -- retVal = yaffs_DeleteFile(obj); -- break; -- case YAFFS_OBJECT_TYPE_DIRECTORY: -- return yaffs_DeleteDirectory(obj); -- break; -- case YAFFS_OBJECT_TYPE_SYMLINK: -- retVal = yaffs_DeleteSymLink(obj); -- break; -- case YAFFS_OBJECT_TYPE_HARDLINK: -- retVal = yaffs_DeleteHardLink(obj); -- break; -- case YAFFS_OBJECT_TYPE_SPECIAL: -- retVal = yaffs_DoGenericObjectDeletion(obj); -- break; -- case YAFFS_OBJECT_TYPE_UNKNOWN: -- retVal = 0; -- break; /* should not happen. */ -- } -+ if (nCaches > 0) { -+ do { -+ cache = NULL; - -- return retVal; --} -+ /* Find the dirty cache for this object with the lowest chunk id. */ -+ for (i = 0; i < nCaches; i++) { -+ if (dev->cache[i].object == obj && -+ dev->cache[i].dirty) { -+ if (!cache -+ || dev->cache[i].chunk_id < -+ lowest) { -+ cache = &dev->cache[i]; -+ lowest = cache->chunk_id; -+ } -+ } -+ } - --static int yaffs_UnlinkWorker(yaffs_Object *obj) --{ -+ if (cache && !cache->locked) { -+ /* Write it out and free it up */ - -- int immediateDeletion = 0; -+ chunkWritten = -+ yaffs_wr_data_obj(cache->object, -+ cache->chunk_id, -+ cache->data, -+ cache->n_bytes, -+ 1); -+ cache->dirty = 0; -+ cache->object = NULL; -+ } - --#ifdef __KERNEL__ -- if (!obj->myInode) -- immediateDeletion = 1; --#else -- if (obj->inUse <= 0) -- immediateDeletion = 1; --#endif -+ } while (cache && chunkWritten > 0); - -- if (obj->variantType == YAFFS_OBJECT_TYPE_HARDLINK) { -- return yaffs_DeleteHardLink(obj); -- } else if (!ylist_empty(&obj->hardLinks)) { -- /* Curve ball: We're unlinking an object that has a hardlink. -- * -- * This problem arises because we are not strictly following -- * The Linux link/inode model. -- * -- * We can't really delete the object. -- * Instead, we do the following: -- * - Select a hardlink. -- * - Unhook it from the hard links -- * - Unhook it from its parent directory (so that the rename can work) -- * - Rename the object to the hardlink's name. -- * - Delete the hardlink -- */ -+ if (cache) { -+ /* Hoosterman, disk full while writing cache out. */ -+ T(YAFFS_TRACE_ERROR, -+ (TSTR("yaffs tragedy: no space during cache write" TENDSTR))); - -- yaffs_Object *hl; -- int retVal; -- YCHAR name[YAFFS_MAX_NAME_LENGTH + 1]; -+ } -+ } - -- hl = ylist_entry(obj->hardLinks.next, yaffs_Object, hardLinks); -+} - -- ylist_del_init(&hl->hardLinks); -- ylist_del_init(&hl->siblings); -+/*yaffs_flush_whole_cache(dev) -+ * -+ * -+ */ - -- yaffs_GetObjectName(hl, name, YAFFS_MAX_NAME_LENGTH + 1); -+void yaffs_flush_whole_cache(yaffs_dev_t *dev) -+{ -+ yaffs_obj_t *obj; -+ int nCaches = dev->param.n_caches; -+ int i; - -- retVal = yaffs_ChangeObjectName(obj, hl->parent, name, 0, 0); -+ /* Find a dirty object in the cache and flush it... -+ * until there are no further dirty objects. -+ */ -+ do { -+ obj = NULL; -+ for (i = 0; i < nCaches && !obj; i++) { -+ if (dev->cache[i].object && -+ dev->cache[i].dirty) -+ obj = dev->cache[i].object; - -- if (retVal == YAFFS_OK) -- retVal = yaffs_DoGenericObjectDeletion(hl); -+ } -+ if (obj) -+ yaffs_flush_file_cache(obj); - -- return retVal; -+ } while (obj); - -- } else if (immediateDeletion) { -- switch (obj->variantType) { -- case YAFFS_OBJECT_TYPE_FILE: -- return yaffs_DeleteFile(obj); -- break; -- case YAFFS_OBJECT_TYPE_DIRECTORY: -- return yaffs_DeleteDirectory(obj); -- break; -- case YAFFS_OBJECT_TYPE_SYMLINK: -- return yaffs_DeleteSymLink(obj); -- break; -- case YAFFS_OBJECT_TYPE_SPECIAL: -- return yaffs_DoGenericObjectDeletion(obj); -- break; -- case YAFFS_OBJECT_TYPE_HARDLINK: -- case YAFFS_OBJECT_TYPE_UNKNOWN: -- default: -- return YAFFS_FAIL; -- } -- } else -- return yaffs_ChangeObjectName(obj, obj->myDev->unlinkedDir, -- _Y("unlinked"), 0, 0); - } - - --static int yaffs_UnlinkObject(yaffs_Object *obj) -+/* Grab us a cache chunk for use. -+ * First look for an empty one. -+ * Then look for the least recently used non-dirty one. -+ * Then look for the least recently used dirty one...., flush and look again. -+ */ -+static yaffs_cache_t *yaffs_grab_chunk_worker(yaffs_dev_t *dev) - { -+ int i; - -- if (obj && obj->unlinkAllowed) -- return yaffs_UnlinkWorker(obj); -- -- return YAFFS_FAIL; -- --} --int yaffs_Unlink(yaffs_Object *dir, const YCHAR *name) --{ -- yaffs_Object *obj; -+ if (dev->param.n_caches > 0) { -+ for (i = 0; i < dev->param.n_caches; i++) { -+ if (!dev->cache[i].object) -+ return &dev->cache[i]; -+ } -+ } - -- obj = yaffs_FindObjectByName(dir, name); -- return yaffs_UnlinkObject(obj); -+ return NULL; - } - --/*----------------------- Initialisation Scanning ---------------------- */ -- --static void yaffs_HandleShadowedObject(yaffs_Device *dev, int objId, -- int backwardScanning) -+static yaffs_cache_t *yaffs_grab_chunk_cache(yaffs_dev_t *dev) - { -- yaffs_Object *obj; -+ yaffs_cache_t *cache; -+ yaffs_obj_t *theObj; -+ int usage; -+ int i; -+ int pushout; - -- if (!backwardScanning) { -- /* Handle YAFFS1 forward scanning case -- * For YAFFS1 we always do the deletion -- */ -+ if (dev->param.n_caches > 0) { -+ /* Try find a non-dirty one... */ - -- } else { -- /* Handle YAFFS2 case (backward scanning) -- * If the shadowed object exists then ignore. -- */ -- if (yaffs_FindObjectByNumber(dev, objId)) -- return; -- } -+ cache = yaffs_grab_chunk_worker(dev); - -- /* Let's create it (if it does not exist) assuming it is a file so that it can do shrinking etc. -- * We put it in unlinked dir to be cleaned up after the scanning -- */ -- obj = -- yaffs_FindOrCreateObjectByNumber(dev, objId, -- YAFFS_OBJECT_TYPE_FILE); -- if (!obj) -- return; -- yaffs_AddObjectToDirectory(dev->unlinkedDir, obj); -- obj->variant.fileVariant.shrinkSize = 0; -- obj->valid = 1; /* So that we don't read any other info for this file */ -+ if (!cache) { -+ /* They were all dirty, find the last recently used object and flush -+ * its cache, then find again. -+ * NB what's here is not very accurate, we actually flush the object -+ * the last recently used page. -+ */ - --} -+ /* With locking we can't assume we can use entry zero */ - --typedef struct { -- int seq; -- int block; --} yaffs_BlockIndex; -+ theObj = NULL; -+ usage = -1; -+ cache = NULL; -+ pushout = -1; - -+ for (i = 0; i < dev->param.n_caches; i++) { -+ if (dev->cache[i].object && -+ !dev->cache[i].locked && -+ (dev->cache[i].last_use < usage || !cache)) { -+ usage = dev->cache[i].last_use; -+ theObj = dev->cache[i].object; -+ cache = &dev->cache[i]; -+ pushout = i; -+ } -+ } - --static void yaffs_HardlinkFixup(yaffs_Device *dev, yaffs_Object *hardList) --{ -- yaffs_Object *hl; -- yaffs_Object *in; -+ if (!cache || cache->dirty) { -+ /* Flush and try again */ -+ yaffs_flush_file_cache(theObj); -+ cache = yaffs_grab_chunk_worker(dev); -+ } - -- while (hardList) { -- hl = hardList; -- hardList = (yaffs_Object *) (hardList->hardLinks.next); -+ } -+ return cache; -+ } else -+ return NULL; - -- in = yaffs_FindObjectByNumber(dev, -- hl->variant.hardLinkVariant. -- equivalentObjectId); -+} - -- if (in) { -- /* Add the hardlink pointers */ -- hl->variant.hardLinkVariant.equivalentObject = in; -- ylist_add(&hl->hardLinks, &in->hardLinks); -- } else { -- /* Todo Need to report/handle this better. -- * Got a problem... hardlink to a non-existant object -- */ -- hl->variant.hardLinkVariant.equivalentObject = NULL; -- YINIT_LIST_HEAD(&hl->hardLinks); -+/* Find a cached chunk */ -+static yaffs_cache_t *yaffs_find_chunk_cache(const yaffs_obj_t *obj, -+ int chunk_id) -+{ -+ yaffs_dev_t *dev = obj->my_dev; -+ int i; -+ if (dev->param.n_caches > 0) { -+ for (i = 0; i < dev->param.n_caches; i++) { -+ if (dev->cache[i].object == obj && -+ dev->cache[i].chunk_id == chunk_id) { -+ dev->cache_hits++; - -+ return &dev->cache[i]; -+ } - } - } -+ return NULL; - } - -+/* Mark the chunk for the least recently used algorithym */ -+static void yaffs_use_cache(yaffs_dev_t *dev, yaffs_cache_t *cache, -+ int isAWrite) -+{ -+ -+ if (dev->param.n_caches > 0) { -+ if (dev->cache_last_use < 0 || dev->cache_last_use > 100000000) { -+ /* Reset the cache usages */ -+ int i; -+ for (i = 1; i < dev->param.n_caches; i++) -+ dev->cache[i].last_use = 0; - -+ dev->cache_last_use = 0; -+ } - -+ dev->cache_last_use++; - -+ cache->last_use = dev->cache_last_use; - --static int ybicmp(const void *a, const void *b) --{ -- register int aseq = ((yaffs_BlockIndex *)a)->seq; -- register int bseq = ((yaffs_BlockIndex *)b)->seq; -- register int ablock = ((yaffs_BlockIndex *)a)->block; -- register int bblock = ((yaffs_BlockIndex *)b)->block; -- if (aseq == bseq) -- return ablock - bblock; -- else -- return aseq - bseq; -+ if (isAWrite) -+ cache->dirty = 1; -+ } - } - -+/* Invalidate a single cache page. -+ * Do this when a whole page gets written, -+ * ie the short cache for this page is no longer valid. -+ */ -+static void yaffs_invalidate_chunk_cache(yaffs_obj_t *object, int chunk_id) -+{ -+ if (object->my_dev->param.n_caches > 0) { -+ yaffs_cache_t *cache = yaffs_find_chunk_cache(object, chunk_id); - --struct yaffs_ShadowFixerStruct { -- int objectId; -- int shadowedId; -- struct yaffs_ShadowFixerStruct *next; --}; -- -+ if (cache) -+ cache->object = NULL; -+ } -+} - --static void yaffs_StripDeletedObjects(yaffs_Device *dev) -+/* Invalidate all the cache pages associated with this object -+ * Do this whenever ther file is deleted or resized. -+ */ -+static void yaffs_invalidate_whole_cache(yaffs_obj_t *in) - { -- /* -- * Sort out state of unlinked and deleted objects after scanning. -- */ -- struct ylist_head *i; -- struct ylist_head *n; -- yaffs_Object *l; -+ int i; -+ yaffs_dev_t *dev = in->my_dev; - -- /* Soft delete all the unlinked files */ -- ylist_for_each_safe(i, n, -- &dev->unlinkedDir->variant.directoryVariant.children) { -- if (i) { -- l = ylist_entry(i, yaffs_Object, siblings); -- yaffs_DeleteObject(l); -+ if (dev->param.n_caches > 0) { -+ /* Invalidate it. */ -+ for (i = 0; i < dev->param.n_caches; i++) { -+ if (dev->cache[i].object == in) -+ dev->cache[i].object = NULL; - } - } -+} - -- ylist_for_each_safe(i, n, -- &dev->deletedDir->variant.directoryVariant.children) { -- if (i) { -- l = ylist_entry(i, yaffs_Object, siblings); -- yaffs_DeleteObject(l); -- } -- } - --} -+/*--------------------- File read/write ------------------------ -+ * Read and write have very similar structures. -+ * In general the read/write has three parts to it -+ * An incomplete chunk to start with (if the read/write is not chunk-aligned) -+ * Some complete chunks -+ * An incomplete chunk to end off with -+ * -+ * Curve-balls: the first chunk might also be the last chunk. -+ */ - --static int yaffs_Scan(yaffs_Device *dev) -+int yaffs_file_rd(yaffs_obj_t *in, __u8 *buffer, loff_t offset, -+ int n_bytes) - { -- yaffs_ExtendedTags tags; -- int blk; -- int blockIterator; -- int startIterator; -- int endIterator; -- int result; - - int chunk; -- int c; -- int deleted; -- yaffs_BlockState state; -- yaffs_Object *hardList = NULL; -- yaffs_BlockInfo *bi; -- __u32 sequenceNumber; -- yaffs_ObjectHeader *oh; -- yaffs_Object *in; -- yaffs_Object *parent; -+ __u32 start; -+ int nToCopy; -+ int n = n_bytes; -+ int nDone = 0; -+ yaffs_cache_t *cache; - -- int alloc_failed = 0; -+ yaffs_dev_t *dev; - -- struct yaffs_ShadowFixerStruct *shadowFixerList = NULL; -+ dev = in->my_dev; - -+ while (n > 0) { -+ /* chunk = offset / dev->data_bytes_per_chunk + 1; */ -+ /* start = offset % dev->data_bytes_per_chunk; */ -+ yaffs_addr_to_chunk(dev, offset, &chunk, &start); -+ chunk++; - -- __u8 *chunkData; -+ /* OK now check for the curveball where the start and end are in -+ * the same chunk. -+ */ -+ if ((start + n) < dev->data_bytes_per_chunk) -+ nToCopy = n; -+ else -+ nToCopy = dev->data_bytes_per_chunk - start; - -+ cache = yaffs_find_chunk_cache(in, chunk); - -+ /* If the chunk is already in the cache or it is less than a whole chunk -+ * or we're using inband tags then use the cache (if there is caching) -+ * else bypass the cache. -+ */ -+ if (cache || nToCopy != dev->data_bytes_per_chunk || dev->param.inband_tags) { -+ if (dev->param.n_caches > 0) { - -- T(YAFFS_TRACE_SCAN, -- (TSTR("yaffs_Scan starts intstartblk %d intendblk %d..." TENDSTR), -- dev->internalStartBlock, dev->internalEndBlock)); -+ /* If we can't find the data in the cache, then load it up. */ - -- chunkData = yaffs_GetTempBuffer(dev, __LINE__); -+ if (!cache) { -+ cache = yaffs_grab_chunk_cache(in->my_dev); -+ cache->object = in; -+ cache->chunk_id = chunk; -+ cache->dirty = 0; -+ cache->locked = 0; -+ yaffs_rd_data_obj(in, chunk, -+ cache-> -+ data); -+ cache->n_bytes = 0; -+ } - -- dev->sequenceNumber = YAFFS_LOWEST_SEQUENCE_NUMBER; -+ yaffs_use_cache(dev, cache, 0); - -- /* Scan all the blocks to determine their state */ -- for (blk = dev->internalStartBlock; blk <= dev->internalEndBlock; blk++) { -- bi = yaffs_GetBlockInfo(dev, blk); -- yaffs_ClearChunkBits(dev, blk); -- bi->pagesInUse = 0; -- bi->softDeletions = 0; -+ cache->locked = 1; - -- yaffs_QueryInitialBlockState(dev, blk, &state, &sequenceNumber); - -- bi->blockState = state; -- bi->sequenceNumber = sequenceNumber; -+ memcpy(buffer, &cache->data[start], nToCopy); - -- if (bi->sequenceNumber == YAFFS_SEQUENCE_BAD_BLOCK) -- bi->blockState = state = YAFFS_BLOCK_STATE_DEAD; -+ cache->locked = 0; -+ } else { -+ /* Read into the local buffer then copy..*/ - -- T(YAFFS_TRACE_SCAN_DEBUG, -- (TSTR("Block scanning block %d state %d seq %d" TENDSTR), blk, -- state, sequenceNumber)); -+ __u8 *localBuffer = -+ yaffs_get_temp_buffer(dev, __LINE__); -+ yaffs_rd_data_obj(in, chunk, -+ localBuffer); - -- if (state == YAFFS_BLOCK_STATE_DEAD) { -- T(YAFFS_TRACE_BAD_BLOCKS, -- (TSTR("block %d is bad" TENDSTR), blk)); -- } else if (state == YAFFS_BLOCK_STATE_EMPTY) { -- T(YAFFS_TRACE_SCAN_DEBUG, -- (TSTR("Block empty " TENDSTR))); -- dev->nErasedBlocks++; -- dev->nFreeChunks += dev->nChunksPerBlock; -- } -- } -+ memcpy(buffer, &localBuffer[start], nToCopy); - -- startIterator = dev->internalStartBlock; -- endIterator = dev->internalEndBlock; - -- /* For each block.... */ -- for (blockIterator = startIterator; !alloc_failed && blockIterator <= endIterator; -- blockIterator++) { -+ yaffs_release_temp_buffer(dev, localBuffer, -+ __LINE__); -+ } - -- YYIELD(); -+ } else { - -- YYIELD(); -+ /* A full chunk. Read directly into the supplied buffer. */ -+ yaffs_rd_data_obj(in, chunk, buffer); - -- blk = blockIterator; -+ } - -- bi = yaffs_GetBlockInfo(dev, blk); -- state = bi->blockState; -+ n -= nToCopy; -+ offset += nToCopy; -+ buffer += nToCopy; -+ nDone += nToCopy; - -- deleted = 0; -+ } - -- /* For each chunk in each block that needs scanning....*/ -- for (c = 0; !alloc_failed && c < dev->nChunksPerBlock && -- state == YAFFS_BLOCK_STATE_NEEDS_SCANNING; c++) { -- /* Read the tags and decide what to do */ -- chunk = blk * dev->nChunksPerBlock + c; -+ return nDone; -+} - -- result = yaffs_ReadChunkWithTagsFromNAND(dev, chunk, NULL, -- &tags); -+int yaffs_do_file_wr(yaffs_obj_t *in, const __u8 *buffer, loff_t offset, -+ int n_bytes, int write_trhrough) -+{ - -- /* Let's have a good look at this chunk... */ -+ int chunk; -+ __u32 start; -+ int nToCopy; -+ int n = n_bytes; -+ int nDone = 0; -+ int nToWriteBack; -+ int startOfWrite = offset; -+ int chunkWritten = 0; -+ __u32 n_bytesRead; -+ __u32 chunkStart; - -- if (tags.eccResult == YAFFS_ECC_RESULT_UNFIXED || tags.chunkDeleted) { -- /* YAFFS1 only... -- * A deleted chunk -- */ -- deleted++; -- dev->nFreeChunks++; -- /*T((" %d %d deleted\n",blk,c)); */ -- } else if (!tags.chunkUsed) { -- /* An unassigned chunk in the block -- * This means that either the block is empty or -- * this is the one being allocated from -- */ -+ yaffs_dev_t *dev; - -- if (c == 0) { -- /* We're looking at the first chunk in the block so the block is unused */ -- state = YAFFS_BLOCK_STATE_EMPTY; -- dev->nErasedBlocks++; -- } else { -- /* this is the block being allocated from */ -- T(YAFFS_TRACE_SCAN, -- (TSTR -- (" Allocating from %d %d" TENDSTR), -- blk, c)); -- state = YAFFS_BLOCK_STATE_ALLOCATING; -- dev->allocationBlock = blk; -- dev->allocationPage = c; -- dev->allocationBlockFinder = blk; -- /* Set it to here to encourage the allocator to go forth from here. */ -+ dev = in->my_dev; - -- } -+ while (n > 0 && chunkWritten >= 0) { -+ yaffs_addr_to_chunk(dev, offset, &chunk, &start); - -- dev->nFreeChunks += (dev->nChunksPerBlock - c); -- } else if (tags.chunkId > 0) { -- /* chunkId > 0 so it is a data chunk... */ -- unsigned int endpos; -- -- yaffs_SetChunkBit(dev, blk, c); -- bi->pagesInUse++; -- -- in = yaffs_FindOrCreateObjectByNumber(dev, -- tags. -- objectId, -- YAFFS_OBJECT_TYPE_FILE); -- /* PutChunkIntoFile checks for a clash (two data chunks with -- * the same chunkId). -- */ -+ if (chunk * dev->data_bytes_per_chunk + start != offset || -+ start >= dev->data_bytes_per_chunk) { -+ T(YAFFS_TRACE_ERROR, ( -+ TSTR("AddrToChunk of offset %d gives chunk %d start %d" -+ TENDSTR), -+ (int)offset, chunk, start)); -+ } -+ chunk++; /* File pos to chunk in file offset */ - -- if (!in) -- alloc_failed = 1; -+ /* OK now check for the curveball where the start and end are in -+ * the same chunk. -+ */ - -- if (in) { -- if (!yaffs_PutChunkIntoFile(in, tags.chunkId, chunk, 1)) -- alloc_failed = 1; -- } -+ if ((start + n) < dev->data_bytes_per_chunk) { -+ nToCopy = n; - -- endpos = -- (tags.chunkId - 1) * dev->nDataBytesPerChunk + -- tags.byteCount; -- if (in && -- in->variantType == YAFFS_OBJECT_TYPE_FILE -- && in->variant.fileVariant.scannedFileSize < -- endpos) { -- in->variant.fileVariant. -- scannedFileSize = endpos; -- if (!dev->useHeaderFileSize) { -- in->variant.fileVariant. -- fileSize = -- in->variant.fileVariant. -- scannedFileSize; -- } -+ /* Now folks, to calculate how many bytes to write back.... -+ * If we're overwriting and not writing to then end of file then -+ * we need to write back as much as was there before. -+ */ - -- } -- /* T((" %d %d data %d %d\n",blk,c,tags.objectId,tags.chunkId)); */ -- } else { -- /* chunkId == 0, so it is an ObjectHeader. -- * Thus, we read in the object header and make the object -- */ -- yaffs_SetChunkBit(dev, blk, c); -- bi->pagesInUse++; -+ chunkStart = ((chunk - 1) * dev->data_bytes_per_chunk); - -- result = yaffs_ReadChunkWithTagsFromNAND(dev, chunk, -- chunkData, -- NULL); -- -- oh = (yaffs_ObjectHeader *) chunkData; -- -- in = yaffs_FindObjectByNumber(dev, -- tags.objectId); -- if (in && in->variantType != oh->type) { -- /* This should not happen, but somehow -- * Wev'e ended up with an objectId that has been reused but not yet -- * deleted, and worse still it has changed type. Delete the old object. -- */ -+ if (chunkStart > in->variant.file_variant.file_size) -+ n_bytesRead = 0; /* Past end of file */ -+ else -+ n_bytesRead = in->variant.file_variant.file_size - chunkStart; - -- yaffs_DeleteObject(in); -+ if (n_bytesRead > dev->data_bytes_per_chunk) -+ n_bytesRead = dev->data_bytes_per_chunk; - -- in = 0; -- } -+ nToWriteBack = -+ (n_bytesRead > -+ (start + n)) ? n_bytesRead : (start + n); - -- in = yaffs_FindOrCreateObjectByNumber(dev, -- tags. -- objectId, -- oh->type); -- -- if (!in) -- alloc_failed = 1; -- -- if (in && oh->shadowsObject > 0) { -- -- struct yaffs_ShadowFixerStruct *fixer; -- fixer = YMALLOC(sizeof(struct yaffs_ShadowFixerStruct)); -- if (fixer) { -- fixer->next = shadowFixerList; -- shadowFixerList = fixer; -- fixer->objectId = tags.objectId; -- fixer->shadowedId = oh->shadowsObject; -- } -+ if (nToWriteBack < 0 || nToWriteBack > dev->data_bytes_per_chunk) -+ YBUG(); -+ -+ } else { -+ nToCopy = dev->data_bytes_per_chunk - start; -+ nToWriteBack = dev->data_bytes_per_chunk; -+ } -+ -+ if (nToCopy != dev->data_bytes_per_chunk || dev->param.inband_tags) { -+ /* An incomplete start or end chunk (or maybe both start and end chunk), -+ * or we're using inband tags, so we want to use the cache buffers. -+ */ -+ if (dev->param.n_caches > 0) { -+ yaffs_cache_t *cache; -+ /* If we can't find the data in the cache, then load the cache */ -+ cache = yaffs_find_chunk_cache(in, chunk); - -+ if (!cache -+ && yaffs_check_alloc_available(dev, 1)) { -+ cache = yaffs_grab_chunk_cache(dev); -+ cache->object = in; -+ cache->chunk_id = chunk; -+ cache->dirty = 0; -+ cache->locked = 0; -+ yaffs_rd_data_obj(in, chunk, -+ cache->data); -+ } else if (cache && -+ !cache->dirty && -+ !yaffs_check_alloc_available(dev, 1)) { -+ /* Drop the cache if it was a read cache item and -+ * no space check has been made for it. -+ */ -+ cache = NULL; - } - -- if (in && in->valid) { -- /* We have already filled this one. We have a duplicate and need to resolve it. */ -+ if (cache) { -+ yaffs_use_cache(dev, cache, 1); -+ cache->locked = 1; - -- unsigned existingSerial = in->serial; -- unsigned newSerial = tags.serialNumber; - -- if (((existingSerial + 1) & 3) == newSerial) { -- /* Use new one - destroy the exisiting one */ -- yaffs_DeleteChunk(dev, -- in->hdrChunk, -- 1, __LINE__); -- in->valid = 0; -- } else { -- /* Use existing - destroy this one. */ -- yaffs_DeleteChunk(dev, chunk, 1, -- __LINE__); -+ memcpy(&cache->data[start], buffer, -+ nToCopy); -+ -+ -+ cache->locked = 0; -+ cache->n_bytes = nToWriteBack; -+ -+ if (write_trhrough) { -+ chunkWritten = -+ yaffs_wr_data_obj -+ (cache->object, -+ cache->chunk_id, -+ cache->data, cache->n_bytes, -+ 1); -+ cache->dirty = 0; - } -+ -+ } else { -+ chunkWritten = -1; /* fail the write */ - } -+ } else { -+ /* An incomplete start or end chunk (or maybe both start and end chunk) -+ * Read into the local buffer then copy, then copy over and write back. -+ */ - -- if (in && !in->valid && -- (tags.objectId == YAFFS_OBJECTID_ROOT || -- tags.objectId == YAFFS_OBJECTID_LOSTNFOUND)) { -- /* We only load some info, don't fiddle with directory structure */ -- in->valid = 1; -- in->variantType = oh->type; -+ __u8 *localBuffer = -+ yaffs_get_temp_buffer(dev, __LINE__); - -- in->yst_mode = oh->yst_mode; --#ifdef CONFIG_YAFFS_WINCE -- in->win_atime[0] = oh->win_atime[0]; -- in->win_ctime[0] = oh->win_ctime[0]; -- in->win_mtime[0] = oh->win_mtime[0]; -- in->win_atime[1] = oh->win_atime[1]; -- in->win_ctime[1] = oh->win_ctime[1]; -- in->win_mtime[1] = oh->win_mtime[1]; --#else -- in->yst_uid = oh->yst_uid; -- in->yst_gid = oh->yst_gid; -- in->yst_atime = oh->yst_atime; -- in->yst_mtime = oh->yst_mtime; -- in->yst_ctime = oh->yst_ctime; -- in->yst_rdev = oh->yst_rdev; --#endif -- in->hdrChunk = chunk; -- in->serial = tags.serialNumber; -+ yaffs_rd_data_obj(in, chunk, -+ localBuffer); - -- } else if (in && !in->valid) { -- /* we need to load this info */ - -- in->valid = 1; -- in->variantType = oh->type; - -- in->yst_mode = oh->yst_mode; --#ifdef CONFIG_YAFFS_WINCE -- in->win_atime[0] = oh->win_atime[0]; -- in->win_ctime[0] = oh->win_ctime[0]; -- in->win_mtime[0] = oh->win_mtime[0]; -- in->win_atime[1] = oh->win_atime[1]; -- in->win_ctime[1] = oh->win_ctime[1]; -- in->win_mtime[1] = oh->win_mtime[1]; --#else -- in->yst_uid = oh->yst_uid; -- in->yst_gid = oh->yst_gid; -- in->yst_atime = oh->yst_atime; -- in->yst_mtime = oh->yst_mtime; -- in->yst_ctime = oh->yst_ctime; -- in->yst_rdev = oh->yst_rdev; --#endif -- in->hdrChunk = chunk; -- in->serial = tags.serialNumber; -+ memcpy(&localBuffer[start], buffer, nToCopy); - -- yaffs_SetObjectName(in, oh->name); -- in->dirty = 0; -+ chunkWritten = -+ yaffs_wr_data_obj(in, chunk, -+ localBuffer, -+ nToWriteBack, -+ 0); - -- /* directory stuff... -- * hook up to parent -- */ -+ yaffs_release_temp_buffer(dev, localBuffer, -+ __LINE__); - -- parent = -- yaffs_FindOrCreateObjectByNumber -- (dev, oh->parentObjectId, -- YAFFS_OBJECT_TYPE_DIRECTORY); -- if (!parent) -- alloc_failed = 1; -- if (parent && parent->variantType == -- YAFFS_OBJECT_TYPE_UNKNOWN) { -- /* Set up as a directory */ -- parent->variantType = -- YAFFS_OBJECT_TYPE_DIRECTORY; -- YINIT_LIST_HEAD(&parent->variant. -- directoryVariant. -- children); -- } else if (!parent || parent->variantType != -- YAFFS_OBJECT_TYPE_DIRECTORY) { -- /* Hoosterman, another problem.... -- * We're trying to use a non-directory as a directory -- */ -+ } - -- T(YAFFS_TRACE_ERROR, -- (TSTR -- ("yaffs tragedy: attempting to use non-directory as a directory in scan. Put in lost+found." -- TENDSTR))); -- parent = dev->lostNFoundDir; -- } -+ } else { -+ /* A full chunk. Write directly from the supplied buffer. */ - -- yaffs_AddObjectToDirectory(parent, in); - -- if (0 && (parent == dev->deletedDir || -- parent == dev->unlinkedDir)) { -- in->deleted = 1; /* If it is unlinked at start up then it wants deleting */ -- dev->nDeletedFiles++; -- } -- /* Note re hardlinks. -- * Since we might scan a hardlink before its equivalent object is scanned -- * we put them all in a list. -- * After scanning is complete, we should have all the objects, so we run through this -- * list and fix up all the chains. -- */ - -- switch (in->variantType) { -- case YAFFS_OBJECT_TYPE_UNKNOWN: -- /* Todo got a problem */ -- break; -- case YAFFS_OBJECT_TYPE_FILE: -- if (dev->useHeaderFileSize) -- -- in->variant.fileVariant. -- fileSize = -- oh->fileSize; -- -- break; -- case YAFFS_OBJECT_TYPE_HARDLINK: -- in->variant.hardLinkVariant. -- equivalentObjectId = -- oh->equivalentObjectId; -- in->hardLinks.next = -- (struct ylist_head *) -- hardList; -- hardList = in; -- break; -- case YAFFS_OBJECT_TYPE_DIRECTORY: -- /* Do nothing */ -- break; -- case YAFFS_OBJECT_TYPE_SPECIAL: -- /* Do nothing */ -- break; -- case YAFFS_OBJECT_TYPE_SYMLINK: -- in->variant.symLinkVariant.alias = -- yaffs_CloneString(oh->alias); -- if (!in->variant.symLinkVariant.alias) -- alloc_failed = 1; -- break; -- } -+ chunkWritten = -+ yaffs_wr_data_obj(in, chunk, buffer, -+ dev->data_bytes_per_chunk, -+ 0); - --/* -- if (parent == dev->deletedDir) { -- yaffs_DestroyObject(in); -- bi->hasShrinkHeader = 1; -- } --*/ -- } -- } -+ /* Since we've overwritten the cached data, we better invalidate it. */ -+ yaffs_invalidate_chunk_cache(in, chunk); - } - -- if (state == YAFFS_BLOCK_STATE_NEEDS_SCANNING) { -- /* If we got this far while scanning, then the block is fully allocated.*/ -- state = YAFFS_BLOCK_STATE_FULL; -+ if (chunkWritten >= 0) { -+ n -= nToCopy; -+ offset += nToCopy; -+ buffer += nToCopy; -+ nDone += nToCopy; - } - -- bi->blockState = state; -+ } - -- /* Now let's see if it was dirty */ -- if (bi->pagesInUse == 0 && -- !bi->hasShrinkHeader && -- bi->blockState == YAFFS_BLOCK_STATE_FULL) { -- yaffs_BlockBecameDirty(dev, blk); -- } -+ /* Update file object */ - -- } -+ if ((startOfWrite + nDone) > in->variant.file_variant.file_size) -+ in->variant.file_variant.file_size = (startOfWrite + nDone); - -+ in->dirty = 1; - -- /* Ok, we've done all the scanning. -- * Fix up the hard link chains. -- * We should now have scanned all the objects, now it's time to add these -- * hardlinks. -- */ -+ return nDone; -+} - -- yaffs_HardlinkFixup(dev, hardList); -+int yaffs_wr_file(yaffs_obj_t *in, const __u8 *buffer, loff_t offset, -+ int n_bytes, int write_trhrough) -+{ -+ yaffs2_handle_hole(in,offset); -+ return yaffs_do_file_wr(in,buffer,offset,n_bytes,write_trhrough); -+} - -- /* Fix up any shadowed objects */ -- { -- struct yaffs_ShadowFixerStruct *fixer; -- yaffs_Object *obj; -- -- while (shadowFixerList) { -- fixer = shadowFixerList; -- shadowFixerList = fixer->next; -- /* Complete the rename transaction by deleting the shadowed object -- * then setting the object header to unshadowed. -- */ -- obj = yaffs_FindObjectByNumber(dev, fixer->shadowedId); -- if (obj) -- yaffs_DeleteObject(obj); - -- obj = yaffs_FindObjectByNumber(dev, fixer->objectId); - -- if (obj) -- yaffs_UpdateObjectHeader(obj, NULL, 1, 0, 0); -+/* ---------------------- File resizing stuff ------------------ */ - -- YFREE(fixer); -- } -- } -+static void yaffs_prune_chunks(yaffs_obj_t *in, int new_size) -+{ - -- yaffs_ReleaseTempBuffer(dev, chunkData, __LINE__); -+ yaffs_dev_t *dev = in->my_dev; -+ int oldFileSize = in->variant.file_variant.file_size; - -- if (alloc_failed) -- return YAFFS_FAIL; -+ int lastDel = 1 + (oldFileSize - 1) / dev->data_bytes_per_chunk; -+ -+ int startDel = 1 + (new_size + dev->data_bytes_per_chunk - 1) / -+ dev->data_bytes_per_chunk; -+ int i; -+ int chunk_id; - -- T(YAFFS_TRACE_SCAN, (TSTR("yaffs_Scan ends" TENDSTR))); -+ /* Delete backwards so that we don't end up with holes if -+ * power is lost part-way through the operation. -+ */ -+ for (i = lastDel; i >= startDel; i--) { -+ /* NB this could be optimised somewhat, -+ * eg. could retrieve the tags and write them without -+ * using yaffs_chunk_del -+ */ - -+ chunk_id = yaffs_find_del_file_chunk(in, i, NULL); -+ if (chunk_id > 0) { -+ if (chunk_id < -+ (dev->internal_start_block * dev->param.chunks_per_block) -+ || chunk_id >= -+ ((dev->internal_end_block + -+ 1) * dev->param.chunks_per_block)) { -+ T(YAFFS_TRACE_ALWAYS, -+ (TSTR("Found daft chunk_id %d for %d" TENDSTR), -+ chunk_id, i)); -+ } else { -+ in->n_data_chunks--; -+ yaffs_chunk_del(dev, chunk_id, 1, __LINE__); -+ } -+ } -+ } - -- return YAFFS_OK; - } - --static void yaffs_CheckObjectDetailsLoaded(yaffs_Object *in) --{ -- __u8 *chunkData; -- yaffs_ObjectHeader *oh; -- yaffs_Device *dev; -- yaffs_ExtendedTags tags; -- int result; -- int alloc_failed = 0; - -- if (!in) -- return; -+void yaffs_resize_file_down( yaffs_obj_t *obj, loff_t new_size) -+{ -+ int newFullChunks; -+ __u32 new_sizeOfPartialChunk; -+ yaffs_dev_t *dev = obj->my_dev; - -- dev = in->myDev; -+ yaffs_addr_to_chunk(dev, new_size, &newFullChunks, &new_sizeOfPartialChunk); - --#if 0 -- T(YAFFS_TRACE_SCAN, (TSTR("details for object %d %s loaded" TENDSTR), -- in->objectId, -- in->lazyLoaded ? "not yet" : "already")); --#endif -+ yaffs_prune_chunks(obj, new_size); - -- if (in->lazyLoaded && in->hdrChunk > 0) { -- in->lazyLoaded = 0; -- chunkData = yaffs_GetTempBuffer(dev, __LINE__); -+ if (new_sizeOfPartialChunk != 0) { -+ int lastChunk = 1 + newFullChunks; -+ __u8 *localBuffer = yaffs_get_temp_buffer(dev, __LINE__); - -- result = yaffs_ReadChunkWithTagsFromNAND(dev, in->hdrChunk, chunkData, &tags); -- oh = (yaffs_ObjectHeader *) chunkData; -+ /* Got to read and rewrite the last chunk with its new size and zero pad */ -+ yaffs_rd_data_obj(obj, lastChunk, localBuffer); -+ memset(localBuffer + new_sizeOfPartialChunk, 0, -+ dev->data_bytes_per_chunk - new_sizeOfPartialChunk); - -- in->yst_mode = oh->yst_mode; --#ifdef CONFIG_YAFFS_WINCE -- in->win_atime[0] = oh->win_atime[0]; -- in->win_ctime[0] = oh->win_ctime[0]; -- in->win_mtime[0] = oh->win_mtime[0]; -- in->win_atime[1] = oh->win_atime[1]; -- in->win_ctime[1] = oh->win_ctime[1]; -- in->win_mtime[1] = oh->win_mtime[1]; --#else -- in->yst_uid = oh->yst_uid; -- in->yst_gid = oh->yst_gid; -- in->yst_atime = oh->yst_atime; -- in->yst_mtime = oh->yst_mtime; -- in->yst_ctime = oh->yst_ctime; -- in->yst_rdev = oh->yst_rdev; -+ yaffs_wr_data_obj(obj, lastChunk, localBuffer, -+ new_sizeOfPartialChunk, 1); - --#endif -- yaffs_SetObjectName(in, oh->name); -+ yaffs_release_temp_buffer(dev, localBuffer, __LINE__); -+ } - -- if (in->variantType == YAFFS_OBJECT_TYPE_SYMLINK) { -- in->variant.symLinkVariant.alias = -- yaffs_CloneString(oh->alias); -- if (!in->variant.symLinkVariant.alias) -- alloc_failed = 1; /* Not returned to caller */ -- } -+ obj->variant.file_variant.file_size = new_size; - -- yaffs_ReleaseTempBuffer(dev, chunkData, __LINE__); -- } -+ yaffs_prune_tree(dev, &obj->variant.file_variant); - } - --static int yaffs_ScanBackwards(yaffs_Device *dev) --{ -- yaffs_ExtendedTags tags; -- int blk; -- int blockIterator; -- int startIterator; -- int endIterator; -- int nBlocksToScan = 0; -- -- int chunk; -- int result; -- int c; -- int deleted; -- yaffs_BlockState state; -- yaffs_Object *hardList = NULL; -- yaffs_BlockInfo *bi; -- __u32 sequenceNumber; -- yaffs_ObjectHeader *oh; -- yaffs_Object *in; -- yaffs_Object *parent; -- int nBlocks = dev->internalEndBlock - dev->internalStartBlock + 1; -- int itsUnlinked; -- __u8 *chunkData; - -- int fileSize; -- int isShrink; -- int foundChunksInBlock; -- int equivalentObjectId; -- int alloc_failed = 0; -+int yaffs_resize_file(yaffs_obj_t *in, loff_t new_size) -+{ -+ yaffs_dev_t *dev = in->my_dev; -+ int oldFileSize = in->variant.file_variant.file_size; - -+ yaffs_flush_file_cache(in); -+ yaffs_invalidate_whole_cache(in); - -- yaffs_BlockIndex *blockIndex = NULL; -- int altBlockIndex = 0; -+ yaffs_check_gc(dev,0); - -- if (!dev->isYaffs2) { -- T(YAFFS_TRACE_SCAN, -- (TSTR("yaffs_ScanBackwards is only for YAFFS2!" TENDSTR))); -+ if (in->variant_type != YAFFS_OBJECT_TYPE_FILE) - return YAFFS_FAIL; -- } - -- T(YAFFS_TRACE_SCAN, -- (TSTR -- ("yaffs_ScanBackwards starts intstartblk %d intendblk %d..." -- TENDSTR), dev->internalStartBlock, dev->internalEndBlock)); -+ if (new_size == oldFileSize) -+ return YAFFS_OK; -+ -+ if(new_size > oldFileSize){ -+ yaffs2_handle_hole(in,new_size); -+ in->variant.file_variant.file_size = new_size; -+ } else { -+ /* new_size < oldFileSize */ -+ yaffs_resize_file_down(in, new_size); -+ } - -+ /* Write a new object header to reflect the resize. -+ * show we've shrunk the file, if need be -+ * Do this only if the file is not in the deleted directories -+ * and is not shadowed. -+ */ -+ if (in->parent && -+ !in->is_shadowed && -+ in->parent->obj_id != YAFFS_OBJECTID_UNLINKED && -+ in->parent->obj_id != YAFFS_OBJECTID_DELETED) -+ yaffs_update_oh(in, NULL, 0, 0, 0, NULL); - -- dev->sequenceNumber = YAFFS_LOWEST_SEQUENCE_NUMBER; - -- blockIndex = YMALLOC(nBlocks * sizeof(yaffs_BlockIndex)); -+ return YAFFS_OK; -+} - -- if (!blockIndex) { -- blockIndex = YMALLOC_ALT(nBlocks * sizeof(yaffs_BlockIndex)); -- altBlockIndex = 1; -- } -+loff_t yaffs_get_file_size(yaffs_obj_t *obj) -+{ -+ YCHAR *alias = NULL; -+ obj = yaffs_get_equivalent_obj(obj); - -- if (!blockIndex) { -- T(YAFFS_TRACE_SCAN, -- (TSTR("yaffs_Scan() could not allocate block index!" TENDSTR))); -- return YAFFS_FAIL; -+ switch (obj->variant_type) { -+ case YAFFS_OBJECT_TYPE_FILE: -+ return obj->variant.file_variant.file_size; -+ case YAFFS_OBJECT_TYPE_SYMLINK: -+ alias = obj->variant.symlink_variant.alias; -+ if(!alias) -+ return 0; -+ return yaffs_strnlen(alias,YAFFS_MAX_ALIAS_LENGTH); -+ default: -+ return 0; - } -+} - -- dev->blocksInCheckpoint = 0; -- -- chunkData = yaffs_GetTempBuffer(dev, __LINE__); -- -- /* Scan all the blocks to determine their state */ -- for (blk = dev->internalStartBlock; blk <= dev->internalEndBlock; blk++) { -- bi = yaffs_GetBlockInfo(dev, blk); -- yaffs_ClearChunkBits(dev, blk); -- bi->pagesInUse = 0; -- bi->softDeletions = 0; -- -- yaffs_QueryInitialBlockState(dev, blk, &state, &sequenceNumber); - -- bi->blockState = state; -- bi->sequenceNumber = sequenceNumber; - -- if (bi->sequenceNumber == YAFFS_SEQUENCE_CHECKPOINT_DATA) -- bi->blockState = state = YAFFS_BLOCK_STATE_CHECKPOINT; -- if (bi->sequenceNumber == YAFFS_SEQUENCE_BAD_BLOCK) -- bi->blockState = state = YAFFS_BLOCK_STATE_DEAD; -+int yaffs_flush_file(yaffs_obj_t *in, int update_time, int data_sync) -+{ -+ int retVal; -+ if (in->dirty) { -+ yaffs_flush_file_cache(in); -+ if(data_sync) /* Only sync data */ -+ retVal=YAFFS_OK; -+ else { -+ if (update_time) { -+#ifdef CONFIG_YAFFS_WINCE -+ yfsd_win_file_time_now(in->win_mtime); -+#else - -- T(YAFFS_TRACE_SCAN_DEBUG, -- (TSTR("Block scanning block %d state %d seq %d" TENDSTR), blk, -- state, sequenceNumber)); -+ in->yst_mtime = Y_CURRENT_TIME; - -+#endif -+ } - -- if (state == YAFFS_BLOCK_STATE_CHECKPOINT) { -- dev->blocksInCheckpoint++; -+ retVal = (yaffs_update_oh(in, NULL, 0, 0, 0, NULL) >= -+ 0) ? YAFFS_OK : YAFFS_FAIL; -+ } -+ } else { -+ retVal = YAFFS_OK; -+ } - -- } else if (state == YAFFS_BLOCK_STATE_DEAD) { -- T(YAFFS_TRACE_BAD_BLOCKS, -- (TSTR("block %d is bad" TENDSTR), blk)); -- } else if (state == YAFFS_BLOCK_STATE_EMPTY) { -- T(YAFFS_TRACE_SCAN_DEBUG, -- (TSTR("Block empty " TENDSTR))); -- dev->nErasedBlocks++; -- dev->nFreeChunks += dev->nChunksPerBlock; -- } else if (state == YAFFS_BLOCK_STATE_NEEDS_SCANNING) { -+ return retVal; - -- /* Determine the highest sequence number */ -- if (sequenceNumber >= YAFFS_LOWEST_SEQUENCE_NUMBER && -- sequenceNumber < YAFFS_HIGHEST_SEQUENCE_NUMBER) { -+} - -- blockIndex[nBlocksToScan].seq = sequenceNumber; -- blockIndex[nBlocksToScan].block = blk; -+static int yaffs_generic_obj_del(yaffs_obj_t *in) -+{ - -- nBlocksToScan++; -+ /* First off, invalidate the file's data in the cache, without flushing. */ -+ yaffs_invalidate_whole_cache(in); - -- if (sequenceNumber >= dev->sequenceNumber) -- dev->sequenceNumber = sequenceNumber; -- } else { -- /* TODO: Nasty sequence number! */ -- T(YAFFS_TRACE_SCAN, -- (TSTR -- ("Block scanning block %d has bad sequence number %d" -- TENDSTR), blk, sequenceNumber)); -+ if (in->my_dev->param.is_yaffs2 && (in->parent != in->my_dev->del_dir)) { -+ /* Move to the unlinked directory so we have a record that it was deleted. */ -+ yaffs_change_obj_name(in, in->my_dev->del_dir, _Y("deleted"), 0, 0); - -- } -- } - } - -- T(YAFFS_TRACE_SCAN, -- (TSTR("%d blocks to be sorted..." TENDSTR), nBlocksToScan)); -+ yaffs_remove_obj_from_dir(in); -+ yaffs_chunk_del(in->my_dev, in->hdr_chunk, 1, __LINE__); -+ in->hdr_chunk = 0; - -+ yaffs_free_obj(in); -+ return YAFFS_OK; - -+} - -- YYIELD(); -+/* yaffs_del_file deletes the whole file data -+ * and the inode associated with the file. -+ * It does not delete the links associated with the file. -+ */ -+static int yaffs_unlink_file_if_needed(yaffs_obj_t *in) -+{ - -- /* Sort the blocks */ --#ifndef CONFIG_YAFFS_USE_OWN_SORT -- { -- /* Use qsort now. */ -- yaffs_qsort(blockIndex, nBlocksToScan, sizeof(yaffs_BlockIndex), ybicmp); -- } --#else -- { -- /* Dungy old bubble sort... */ -+ int retVal; -+ int immediateDeletion = 0; -+ yaffs_dev_t *dev = in->my_dev; - -- yaffs_BlockIndex temp; -- int i; -- int j; -+ if (!in->my_inode) -+ immediateDeletion = 1; - -- for (i = 0; i < nBlocksToScan; i++) -- for (j = i + 1; j < nBlocksToScan; j++) -- if (blockIndex[i].seq > blockIndex[j].seq) { -- temp = blockIndex[j]; -- blockIndex[j] = blockIndex[i]; -- blockIndex[i] = temp; -- } -+ if (immediateDeletion) { -+ retVal = -+ yaffs_change_obj_name(in, in->my_dev->del_dir, -+ _Y("deleted"), 0, 0); -+ T(YAFFS_TRACE_TRACING, -+ (TSTR("yaffs: immediate deletion of file %d" TENDSTR), -+ in->obj_id)); -+ in->deleted = 1; -+ in->my_dev->n_deleted_files++; -+ if (dev->param.disable_soft_del || dev->param.is_yaffs2) -+ yaffs_resize_file(in, 0); -+ yaffs_soft_del_file(in); -+ } else { -+ retVal = -+ yaffs_change_obj_name(in, in->my_dev->unlinked_dir, -+ _Y("unlinked"), 0, 0); - } --#endif - -- YYIELD(); - -- T(YAFFS_TRACE_SCAN, (TSTR("...done" TENDSTR))); -+ return retVal; -+} - -- /* Now scan the blocks looking at the data. */ -- startIterator = 0; -- endIterator = nBlocksToScan - 1; -- T(YAFFS_TRACE_SCAN_DEBUG, -- (TSTR("%d blocks to be scanned" TENDSTR), nBlocksToScan)); -+int yaffs_del_file(yaffs_obj_t *in) -+{ -+ int retVal = YAFFS_OK; -+ int deleted; /* Need to cache value on stack if in is freed */ -+ yaffs_dev_t *dev = in->my_dev; - -- /* For each block.... backwards */ -- for (blockIterator = endIterator; !alloc_failed && blockIterator >= startIterator; -- blockIterator--) { -- /* Cooperative multitasking! This loop can run for so -- long that watchdog timers expire. */ -- YYIELD(); -+ if (dev->param.disable_soft_del || dev->param.is_yaffs2) -+ yaffs_resize_file(in, 0); - -- /* get the block to scan in the correct order */ -- blk = blockIndex[blockIterator].block; -+ if (in->n_data_chunks > 0) { -+ /* Use soft deletion if there is data in the file. -+ * That won't be the case if it has been resized to zero. -+ */ -+ if (!in->unlinked) -+ retVal = yaffs_unlink_file_if_needed(in); - -- bi = yaffs_GetBlockInfo(dev, blk); -+ deleted = in->deleted; - -+ if (retVal == YAFFS_OK && in->unlinked && !in->deleted) { -+ in->deleted = 1; -+ deleted = 1; -+ in->my_dev->n_deleted_files++; -+ yaffs_soft_del_file(in); -+ } -+ return deleted ? YAFFS_OK : YAFFS_FAIL; -+ } else { -+ /* The file has no data chunks so we toss it immediately */ -+ yaffs_free_tnode(in->my_dev, in->variant.file_variant.top); -+ in->variant.file_variant.top = NULL; -+ yaffs_generic_obj_del(in); - -- state = bi->blockState; -+ return YAFFS_OK; -+ } -+} - -- deleted = 0; -+static int yaffs_is_non_empty_dir(yaffs_obj_t *obj) -+{ -+ return (obj->variant_type == YAFFS_OBJECT_TYPE_DIRECTORY) && -+ !(ylist_empty(&obj->variant.dir_variant.children)); -+} - -- /* For each chunk in each block that needs scanning.... */ -- foundChunksInBlock = 0; -- for (c = dev->nChunksPerBlock - 1; -- !alloc_failed && c >= 0 && -- (state == YAFFS_BLOCK_STATE_NEEDS_SCANNING || -- state == YAFFS_BLOCK_STATE_ALLOCATING); c--) { -- /* Scan backwards... -- * Read the tags and decide what to do -- */ -+static int yaffs_del_dir(yaffs_obj_t *obj) -+{ -+ /* First check that the directory is empty. */ -+ if (yaffs_is_non_empty_dir(obj)) -+ return YAFFS_FAIL; - -- chunk = blk * dev->nChunksPerBlock + c; -+ return yaffs_generic_obj_del(obj); -+} - -- result = yaffs_ReadChunkWithTagsFromNAND(dev, chunk, NULL, -- &tags); -+static int yaffs_del_symlink(yaffs_obj_t *in) -+{ -+ if(in->variant.symlink_variant.alias) -+ YFREE(in->variant.symlink_variant.alias); -+ in->variant.symlink_variant.alias=NULL; - -- /* Let's have a good look at this chunk... */ -+ return yaffs_generic_obj_del(in); -+} - -- if (!tags.chunkUsed) { -- /* An unassigned chunk in the block. -- * If there are used chunks after this one, then -- * it is a chunk that was skipped due to failing the erased -- * check. Just skip it so that it can be deleted. -- * But, more typically, We get here when this is an unallocated -- * chunk and his means that either the block is empty or -- * this is the one being allocated from -- */ -+static int yaffs_del_link(yaffs_obj_t *in) -+{ -+ /* remove this hardlink from the list assocaited with the equivalent -+ * object -+ */ -+ ylist_del_init(&in->hard_links); -+ return yaffs_generic_obj_del(in); -+} - -- if (foundChunksInBlock) { -- /* This is a chunk that was skipped due to failing the erased check */ -- } else if (c == 0) { -- /* We're looking at the first chunk in the block so the block is unused */ -- state = YAFFS_BLOCK_STATE_EMPTY; -- dev->nErasedBlocks++; -- } else { -- if (state == YAFFS_BLOCK_STATE_NEEDS_SCANNING || -- state == YAFFS_BLOCK_STATE_ALLOCATING) { -- if (dev->sequenceNumber == bi->sequenceNumber) { -- /* this is the block being allocated from */ -- -- T(YAFFS_TRACE_SCAN, -- (TSTR -- (" Allocating from %d %d" -- TENDSTR), blk, c)); -- -- state = YAFFS_BLOCK_STATE_ALLOCATING; -- dev->allocationBlock = blk; -- dev->allocationPage = c; -- dev->allocationBlockFinder = blk; -- } else { -- /* This is a partially written block that is not -- * the current allocation block. This block must have -- * had a write failure, so set up for retirement. -- */ -- -- /* bi->needsRetiring = 1; ??? TODO */ -- bi->gcPrioritise = 1; -- -- T(YAFFS_TRACE_ALWAYS, -- (TSTR("Partially written block %d detected" TENDSTR), -- blk)); -- } -- } -- } -+int yaffs_del_obj(yaffs_obj_t *obj) -+{ -+int retVal = -1; -+ switch (obj->variant_type) { -+ case YAFFS_OBJECT_TYPE_FILE: -+ retVal = yaffs_del_file(obj); -+ break; -+ case YAFFS_OBJECT_TYPE_DIRECTORY: -+ if(!ylist_empty(&obj->variant.dir_variant.dirty)){ -+ T(YAFFS_TRACE_BACKGROUND, (TSTR("Remove object %d from dirty directories" TENDSTR),obj->obj_id)); -+ ylist_del_init(&obj->variant.dir_variant.dirty); -+ } -+ return yaffs_del_dir(obj); -+ break; -+ case YAFFS_OBJECT_TYPE_SYMLINK: -+ retVal = yaffs_del_symlink(obj); -+ break; -+ case YAFFS_OBJECT_TYPE_HARDLINK: -+ retVal = yaffs_del_link(obj); -+ break; -+ case YAFFS_OBJECT_TYPE_SPECIAL: -+ retVal = yaffs_generic_obj_del(obj); -+ break; -+ case YAFFS_OBJECT_TYPE_UNKNOWN: -+ retVal = 0; -+ break; /* should not happen. */ -+ } - -- dev->nFreeChunks++; -+ return retVal; -+} - -- } else if (tags.eccResult == YAFFS_ECC_RESULT_UNFIXED) { -- T(YAFFS_TRACE_SCAN, -- (TSTR(" Unfixed ECC in chunk(%d:%d), chunk ignored"TENDSTR), -- blk, c)); -- -- dev->nFreeChunks++; -- -- } else if (tags.chunkId > 0) { -- /* chunkId > 0 so it is a data chunk... */ -- unsigned int endpos; -- __u32 chunkBase = -- (tags.chunkId - 1) * dev->nDataBytesPerChunk; -- -- foundChunksInBlock = 1; -- -- -- yaffs_SetChunkBit(dev, blk, c); -- bi->pagesInUse++; -- -- in = yaffs_FindOrCreateObjectByNumber(dev, -- tags. -- objectId, -- YAFFS_OBJECT_TYPE_FILE); -- if (!in) { -- /* Out of memory */ -- alloc_failed = 1; -- } -+static int yaffs_unlink_worker(yaffs_obj_t *obj) -+{ - -- if (in && -- in->variantType == YAFFS_OBJECT_TYPE_FILE -- && chunkBase < -- in->variant.fileVariant.shrinkSize) { -- /* This has not been invalidated by a resize */ -- if (!yaffs_PutChunkIntoFile(in, tags.chunkId, -- chunk, -1)) { -- alloc_failed = 1; -- } -+ int immediateDeletion = 0; - -- /* File size is calculated by looking at the data chunks if we have not -- * seen an object header yet. Stop this practice once we find an object header. -- */ -- endpos = -- (tags.chunkId - -- 1) * dev->nDataBytesPerChunk + -- tags.byteCount; -- -- if (!in->valid && /* have not got an object header yet */ -- in->variant.fileVariant. -- scannedFileSize < endpos) { -- in->variant.fileVariant. -- scannedFileSize = endpos; -- in->variant.fileVariant. -- fileSize = -- in->variant.fileVariant. -- scannedFileSize; -- } -+ if (!obj->my_inode) -+ immediateDeletion = 1; - -- } else if (in) { -- /* This chunk has been invalidated by a resize, so delete */ -- yaffs_DeleteChunk(dev, chunk, 1, __LINE__); -+ if(obj) -+ yaffs_update_parent(obj->parent); - -- } -- } else { -- /* chunkId == 0, so it is an ObjectHeader. -- * Thus, we read in the object header and make the object -- */ -- foundChunksInBlock = 1; -+ if (obj->variant_type == YAFFS_OBJECT_TYPE_HARDLINK) { -+ return yaffs_del_link(obj); -+ } else if (!ylist_empty(&obj->hard_links)) { -+ /* Curve ball: We're unlinking an object that has a hardlink. -+ * -+ * This problem arises because we are not strictly following -+ * The Linux link/inode model. -+ * -+ * We can't really delete the object. -+ * Instead, we do the following: -+ * - Select a hardlink. -+ * - Unhook it from the hard links -+ * - Move it from its parent directory (so that the rename can work) -+ * - Rename the object to the hardlink's name. -+ * - Delete the hardlink -+ */ - -- yaffs_SetChunkBit(dev, blk, c); -- bi->pagesInUse++; -+ yaffs_obj_t *hl; -+ yaffs_obj_t *parent; -+ int retVal; -+ YCHAR name[YAFFS_MAX_NAME_LENGTH + 1]; - -- oh = NULL; -- in = NULL; -+ hl = ylist_entry(obj->hard_links.next, yaffs_obj_t, hard_links); - -- if (tags.extraHeaderInfoAvailable) { -- in = yaffs_FindOrCreateObjectByNumber -- (dev, tags.objectId, -- tags.extraObjectType); -- if (!in) -- alloc_failed = 1; -- } -+ yaffs_get_obj_name(hl, name, YAFFS_MAX_NAME_LENGTH + 1); -+ parent = hl->parent; - -- if (!in || --#ifdef CONFIG_YAFFS_DISABLE_LAZY_LOAD -- !in->valid || --#endif -- tags.extraShadows || -- (!in->valid && -- (tags.objectId == YAFFS_OBJECTID_ROOT || -- tags.objectId == YAFFS_OBJECTID_LOSTNFOUND))) { -- -- /* If we don't have valid info then we need to read the chunk -- * TODO In future we can probably defer reading the chunk and -- * living with invalid data until needed. -- */ -+ ylist_del_init(&hl->hard_links); - -- result = yaffs_ReadChunkWithTagsFromNAND(dev, -- chunk, -- chunkData, -- NULL); -- -- oh = (yaffs_ObjectHeader *) chunkData; -- -- if (dev->inbandTags) { -- /* Fix up the header if they got corrupted by inband tags */ -- oh->shadowsObject = oh->inbandShadowsObject; -- oh->isShrink = oh->inbandIsShrink; -- } -+ yaffs_add_obj_to_dir(obj->my_dev->unlinked_dir, hl); - -- if (!in) { -- in = yaffs_FindOrCreateObjectByNumber(dev, tags.objectId, oh->type); -- if (!in) -- alloc_failed = 1; -- } -+ retVal = yaffs_change_obj_name(obj,parent, name, 0, 0); - -- } -+ if (retVal == YAFFS_OK) -+ retVal = yaffs_generic_obj_del(hl); - -- if (!in) { -- /* TODO Hoosterman we have a problem! */ -- T(YAFFS_TRACE_ERROR, -- (TSTR -- ("yaffs tragedy: Could not make object for object %d at chunk %d during scan" -- TENDSTR), tags.objectId, chunk)); -- continue; -- } -+ return retVal; - -- if (in->valid) { -- /* We have already filled this one. -- * We have a duplicate that will be discarded, but -- * we first have to suck out resize info if it is a file. -- */ -+ } else if (immediateDeletion) { -+ switch (obj->variant_type) { -+ case YAFFS_OBJECT_TYPE_FILE: -+ return yaffs_del_file(obj); -+ break; -+ case YAFFS_OBJECT_TYPE_DIRECTORY: -+ ylist_del_init(&obj->variant.dir_variant.dirty); -+ return yaffs_del_dir(obj); -+ break; -+ case YAFFS_OBJECT_TYPE_SYMLINK: -+ return yaffs_del_symlink(obj); -+ break; -+ case YAFFS_OBJECT_TYPE_SPECIAL: -+ return yaffs_generic_obj_del(obj); -+ break; -+ case YAFFS_OBJECT_TYPE_HARDLINK: -+ case YAFFS_OBJECT_TYPE_UNKNOWN: -+ default: -+ return YAFFS_FAIL; -+ } -+ } else if(yaffs_is_non_empty_dir(obj)) -+ return YAFFS_FAIL; -+ else -+ return yaffs_change_obj_name(obj, obj->my_dev->unlinked_dir, -+ _Y("unlinked"), 0, 0); -+} - -- if ((in->variantType == YAFFS_OBJECT_TYPE_FILE) && -- ((oh && -- oh->type == YAFFS_OBJECT_TYPE_FILE) || -- (tags.extraHeaderInfoAvailable && -- tags.extraObjectType == YAFFS_OBJECT_TYPE_FILE))) { -- __u32 thisSize = -- (oh) ? oh->fileSize : tags. -- extraFileLength; -- __u32 parentObjectId = -- (oh) ? oh-> -- parentObjectId : tags. -- extraParentObjectId; -- -- -- isShrink = -- (oh) ? oh->isShrink : tags. -- extraIsShrinkHeader; - -- /* If it is deleted (unlinked at start also means deleted) -- * we treat the file size as being zeroed at this point. -- */ -- if (parentObjectId == -- YAFFS_OBJECTID_DELETED -- || parentObjectId == -- YAFFS_OBJECTID_UNLINKED) { -- thisSize = 0; -- isShrink = 1; -- } -+static int yaffs_unlink_obj(yaffs_obj_t *obj) -+{ - -- if (isShrink && -- in->variant.fileVariant. -- shrinkSize > thisSize) { -- in->variant.fileVariant. -- shrinkSize = -- thisSize; -- } -+ if (obj && obj->unlink_allowed) -+ return yaffs_unlink_worker(obj); - -- if (isShrink) -- bi->hasShrinkHeader = 1; -+ return YAFFS_FAIL; - -- } -- /* Use existing - destroy this one. */ -- yaffs_DeleteChunk(dev, chunk, 1, __LINE__); -+} -+int yaffs_unlinker(yaffs_obj_t *dir, const YCHAR *name) -+{ -+ yaffs_obj_t *obj; - -- } -+ obj = yaffs_find_by_name(dir, name); -+ return yaffs_unlink_obj(obj); -+} - -- if (!in->valid && in->variantType != -- (oh ? oh->type : tags.extraObjectType)) -- T(YAFFS_TRACE_ERROR, ( -- TSTR("yaffs tragedy: Bad object type, " -- TCONT("%d != %d, for object %d at chunk ") -- TCONT("%d during scan") -- TENDSTR), oh ? -- oh->type : tags.extraObjectType, -- in->variantType, tags.objectId, -- chunk)); -- -- if (!in->valid && -- (tags.objectId == YAFFS_OBJECTID_ROOT || -- tags.objectId == -- YAFFS_OBJECTID_LOSTNFOUND)) { -- /* We only load some info, don't fiddle with directory structure */ -- in->valid = 1; -+/*----------------------- Initialisation Scanning ---------------------- */ - -- if (oh) { -- in->variantType = oh->type; -+void yaffs_handle_shadowed_obj(yaffs_dev_t *dev, int obj_id, -+ int backward_scanning) -+{ -+ yaffs_obj_t *obj; - -- in->yst_mode = oh->yst_mode; --#ifdef CONFIG_YAFFS_WINCE -- in->win_atime[0] = oh->win_atime[0]; -- in->win_ctime[0] = oh->win_ctime[0]; -- in->win_mtime[0] = oh->win_mtime[0]; -- in->win_atime[1] = oh->win_atime[1]; -- in->win_ctime[1] = oh->win_ctime[1]; -- in->win_mtime[1] = oh->win_mtime[1]; --#else -- in->yst_uid = oh->yst_uid; -- in->yst_gid = oh->yst_gid; -- in->yst_atime = oh->yst_atime; -- in->yst_mtime = oh->yst_mtime; -- in->yst_ctime = oh->yst_ctime; -- in->yst_rdev = oh->yst_rdev; -+ if (!backward_scanning) { -+ /* Handle YAFFS1 forward scanning case -+ * For YAFFS1 we always do the deletion -+ */ - --#endif -- } else { -- in->variantType = tags.extraObjectType; -- in->lazyLoaded = 1; -- } -+ } else { -+ /* Handle YAFFS2 case (backward scanning) -+ * If the shadowed object exists then ignore. -+ */ -+ obj = yaffs_find_by_number(dev, obj_id); -+ if(obj) -+ return; -+ } - -- in->hdrChunk = chunk; -+ /* Let's create it (if it does not exist) assuming it is a file so that it can do shrinking etc. -+ * We put it in unlinked dir to be cleaned up after the scanning -+ */ -+ obj = -+ yaffs_find_or_create_by_number(dev, obj_id, -+ YAFFS_OBJECT_TYPE_FILE); -+ if (!obj) -+ return; -+ obj->is_shadowed = 1; -+ yaffs_add_obj_to_dir(dev->unlinked_dir, obj); -+ obj->variant.file_variant.shrink_size = 0; -+ obj->valid = 1; /* So that we don't read any other info for this file */ - -- } else if (!in->valid) { -- /* we need to load this info */ -+} - -- in->valid = 1; -- in->hdrChunk = chunk; - -- if (oh) { -- in->variantType = oh->type; -+void yaffs_link_fixup(yaffs_dev_t *dev, yaffs_obj_t *hard_list) -+{ -+ yaffs_obj_t *hl; -+ yaffs_obj_t *in; - -- in->yst_mode = oh->yst_mode; --#ifdef CONFIG_YAFFS_WINCE -- in->win_atime[0] = oh->win_atime[0]; -- in->win_ctime[0] = oh->win_ctime[0]; -- in->win_mtime[0] = oh->win_mtime[0]; -- in->win_atime[1] = oh->win_atime[1]; -- in->win_ctime[1] = oh->win_ctime[1]; -- in->win_mtime[1] = oh->win_mtime[1]; --#else -- in->yst_uid = oh->yst_uid; -- in->yst_gid = oh->yst_gid; -- in->yst_atime = oh->yst_atime; -- in->yst_mtime = oh->yst_mtime; -- in->yst_ctime = oh->yst_ctime; -- in->yst_rdev = oh->yst_rdev; --#endif -+ while (hard_list) { -+ hl = hard_list; -+ hard_list = (yaffs_obj_t *) (hard_list->hard_links.next); -+ -+ in = yaffs_find_by_number(dev, -+ hl->variant.hardlink_variant. -+ equiv_id); - -- if (oh->shadowsObject > 0) -- yaffs_HandleShadowedObject(dev, -- oh-> -- shadowsObject, -- 1); -- -- -- yaffs_SetObjectName(in, oh->name); -- parent = -- yaffs_FindOrCreateObjectByNumber -- (dev, oh->parentObjectId, -- YAFFS_OBJECT_TYPE_DIRECTORY); -- -- fileSize = oh->fileSize; -- isShrink = oh->isShrink; -- equivalentObjectId = oh->equivalentObjectId; -+ if (in) { -+ /* Add the hardlink pointers */ -+ hl->variant.hardlink_variant.equiv_obj = in; -+ ylist_add(&hl->hard_links, &in->hard_links); -+ } else { -+ /* Todo Need to report/handle this better. -+ * Got a problem... hardlink to a non-existant object -+ */ -+ hl->variant.hardlink_variant.equiv_obj = NULL; -+ YINIT_LIST_HEAD(&hl->hard_links); - -- } else { -- in->variantType = tags.extraObjectType; -- parent = -- yaffs_FindOrCreateObjectByNumber -- (dev, tags.extraParentObjectId, -- YAFFS_OBJECT_TYPE_DIRECTORY); -- fileSize = tags.extraFileLength; -- isShrink = tags.extraIsShrinkHeader; -- equivalentObjectId = tags.extraEquivalentObjectId; -- in->lazyLoaded = 1; -+ } -+ } -+} - -- } -- in->dirty = 0; - -- if (!parent) -- alloc_failed = 1; -+static void yaffs_strip_deleted_objs(yaffs_dev_t *dev) -+{ -+ /* -+ * Sort out state of unlinked and deleted objects after scanning. -+ */ -+ struct ylist_head *i; -+ struct ylist_head *n; -+ yaffs_obj_t *l; - -- /* directory stuff... -- * hook up to parent -- */ -+ if (dev->read_only) -+ return; - -- if (parent && parent->variantType == -- YAFFS_OBJECT_TYPE_UNKNOWN) { -- /* Set up as a directory */ -- parent->variantType = -- YAFFS_OBJECT_TYPE_DIRECTORY; -- YINIT_LIST_HEAD(&parent->variant. -- directoryVariant. -- children); -- } else if (!parent || parent->variantType != -- YAFFS_OBJECT_TYPE_DIRECTORY) { -- /* Hoosterman, another problem.... -- * We're trying to use a non-directory as a directory -- */ -+ /* Soft delete all the unlinked files */ -+ ylist_for_each_safe(i, n, -+ &dev->unlinked_dir->variant.dir_variant.children) { -+ if (i) { -+ l = ylist_entry(i, yaffs_obj_t, siblings); -+ yaffs_del_obj(l); -+ } -+ } - -- T(YAFFS_TRACE_ERROR, -- (TSTR -- ("yaffs tragedy: attempting to use non-directory as a directory in scan. Put in lost+found." -- TENDSTR))); -- parent = dev->lostNFoundDir; -- } -+ ylist_for_each_safe(i, n, -+ &dev->del_dir->variant.dir_variant.children) { -+ if (i) { -+ l = ylist_entry(i, yaffs_obj_t, siblings); -+ yaffs_del_obj(l); -+ } -+ } - -- yaffs_AddObjectToDirectory(parent, in); -+} - -- itsUnlinked = (parent == dev->deletedDir) || -- (parent == dev->unlinkedDir); -+/* -+ * This code iterates through all the objects making sure that they are rooted. -+ * Any unrooted objects are re-rooted in lost+found. -+ * An object needs to be in one of: -+ * - Directly under deleted, unlinked -+ * - Directly or indirectly under root. -+ * -+ * Note: -+ * This code assumes that we don't ever change the current relationships between -+ * directories: -+ * root_dir->parent == unlinked_dir->parent == del_dir->parent == NULL -+ * lostNfound->parent == root_dir -+ * -+ * This fixes the problem where directories might have inadvertently been deleted -+ * leaving the object "hanging" without being rooted in the directory tree. -+ */ -+ -+static int yaffs_has_null_parent(yaffs_dev_t *dev, yaffs_obj_t *obj) -+{ -+ return (obj == dev->del_dir || -+ obj == dev->unlinked_dir|| -+ obj == dev->root_dir); -+} - -- if (isShrink) { -- /* Mark the block as having a shrinkHeader */ -- bi->hasShrinkHeader = 1; -- } -+static void yaffs_fix_hanging_objs(yaffs_dev_t *dev) -+{ -+ yaffs_obj_t *obj; -+ yaffs_obj_t *parent; -+ int i; -+ struct ylist_head *lh; -+ struct ylist_head *n; -+ int depthLimit; -+ int hanging; - -- /* Note re hardlinks. -- * Since we might scan a hardlink before its equivalent object is scanned -- * we put them all in a list. -- * After scanning is complete, we should have all the objects, so we run -- * through this list and fix up all the chains. -- */ -+ if (dev->read_only) -+ return; - -- switch (in->variantType) { -- case YAFFS_OBJECT_TYPE_UNKNOWN: -- /* Todo got a problem */ -- break; -- case YAFFS_OBJECT_TYPE_FILE: -- -- if (in->variant.fileVariant. -- scannedFileSize < fileSize) { -- /* This covers the case where the file size is greater -- * than where the data is -- * This will happen if the file is resized to be larger -- * than its current data extents. -- */ -- in->variant.fileVariant.fileSize = fileSize; -- in->variant.fileVariant.scannedFileSize = -- in->variant.fileVariant.fileSize; -- } -+ /* Iterate through the objects in each hash entry, -+ * looking at each object. -+ * Make sure it is rooted. -+ */ - -- if (isShrink && -- in->variant.fileVariant.shrinkSize > fileSize) { -- in->variant.fileVariant.shrinkSize = fileSize; -- } -+ for (i = 0; i < YAFFS_NOBJECT_BUCKETS; i++) { -+ ylist_for_each_safe(lh, n, &dev->obj_bucket[i].list) { -+ if (lh) { -+ obj = ylist_entry(lh, yaffs_obj_t, hash_link); -+ parent= obj->parent; -+ -+ if(yaffs_has_null_parent(dev,obj)){ -+ /* These directories are not hanging */ -+ hanging = 0; -+ } -+ else if(!parent || parent->variant_type != YAFFS_OBJECT_TYPE_DIRECTORY) -+ hanging = 1; -+ else if(yaffs_has_null_parent(dev,parent)) -+ hanging = 0; -+ else { -+ /* -+ * Need to follow the parent chain to see if it is hanging. -+ */ -+ hanging = 0; -+ depthLimit=100; - -- break; -- case YAFFS_OBJECT_TYPE_HARDLINK: -- if (!itsUnlinked) { -- in->variant.hardLinkVariant.equivalentObjectId = -- equivalentObjectId; -- in->hardLinks.next = -- (struct ylist_head *) hardList; -- hardList = in; -- } -- break; -- case YAFFS_OBJECT_TYPE_DIRECTORY: -- /* Do nothing */ -- break; -- case YAFFS_OBJECT_TYPE_SPECIAL: -- /* Do nothing */ -- break; -- case YAFFS_OBJECT_TYPE_SYMLINK: -- if (oh) { -- in->variant.symLinkVariant.alias = -- yaffs_CloneString(oh->alias); -- if (!in->variant.symLinkVariant.alias) -- alloc_failed = 1; -- } -- break; -+ while(parent != dev->root_dir && -+ parent->parent && -+ parent->parent->variant_type == YAFFS_OBJECT_TYPE_DIRECTORY && -+ depthLimit > 0){ -+ parent = parent->parent; -+ depthLimit--; - } -- -+ if(parent != dev->root_dir) -+ hanging = 1; -+ } -+ if(hanging){ -+ T(YAFFS_TRACE_SCAN, -+ (TSTR("Hanging object %d moved to lost and found" TENDSTR), -+ obj->obj_id)); -+ yaffs_add_obj_to_dir(dev->lost_n_found,obj); - } -- - } -+ } -+ } -+} - -- } /* End of scanning for each chunk */ - -- if (state == YAFFS_BLOCK_STATE_NEEDS_SCANNING) { -- /* If we got this far while scanning, then the block is fully allocated. */ -- state = YAFFS_BLOCK_STATE_FULL; -- } -+/* -+ * Delete directory contents for cleaning up lost and found. -+ */ -+static void yaffs_del_dir_contents(yaffs_obj_t *dir) -+{ -+ yaffs_obj_t *obj; -+ struct ylist_head *lh; -+ struct ylist_head *n; - -- bi->blockState = state; -+ if(dir->variant_type != YAFFS_OBJECT_TYPE_DIRECTORY) -+ YBUG(); -+ -+ ylist_for_each_safe(lh, n, &dir->variant.dir_variant.children) { -+ if (lh) { -+ obj = ylist_entry(lh, yaffs_obj_t, siblings); -+ if(obj->variant_type == YAFFS_OBJECT_TYPE_DIRECTORY) -+ yaffs_del_dir_contents(obj); -+ -+ T(YAFFS_TRACE_SCAN, -+ (TSTR("Deleting lost_found object %d" TENDSTR), -+ obj->obj_id)); - -- /* Now let's see if it was dirty */ -- if (bi->pagesInUse == 0 && -- !bi->hasShrinkHeader && -- bi->blockState == YAFFS_BLOCK_STATE_FULL) { -- yaffs_BlockBecameDirty(dev, blk); -+ /* Need to use UnlinkObject since Delete would not handle -+ * hardlinked objects correctly. -+ */ -+ yaffs_unlink_obj(obj); - } -- - } -+ -+} - -- if (altBlockIndex) -- YFREE_ALT(blockIndex); -- else -- YFREE(blockIndex); -+static void yaffs_empty_l_n_f(yaffs_dev_t *dev) -+{ -+ yaffs_del_dir_contents(dev->lost_n_found); -+} - -- /* Ok, we've done all the scanning. -- * Fix up the hard link chains. -- * We should now have scanned all the objects, now it's time to add these -- * hardlinks. -- */ -- yaffs_HardlinkFixup(dev, hardList); -+static void yaffs_check_obj_details_loaded(yaffs_obj_t *in) -+{ -+ __u8 *chunkData; -+ yaffs_obj_header *oh; -+ yaffs_dev_t *dev; -+ yaffs_ext_tags tags; -+ int result; -+ int alloc_failed = 0; - -+ if (!in) -+ return; - -- yaffs_ReleaseTempBuffer(dev, chunkData, __LINE__); -+ dev = in->my_dev; - -- if (alloc_failed) -- return YAFFS_FAIL; -+#if 0 -+ T(YAFFS_TRACE_SCAN, (TSTR("details for object %d %s loaded" TENDSTR), -+ in->obj_id, -+ in->lazy_loaded ? "not yet" : "already")); -+#endif - -- T(YAFFS_TRACE_SCAN, (TSTR("yaffs_ScanBackwards ends" TENDSTR))); -+ if (in->lazy_loaded && in->hdr_chunk > 0) { -+ in->lazy_loaded = 0; -+ chunkData = yaffs_get_temp_buffer(dev, __LINE__); - -- return YAFFS_OK; --} -+ result = yaffs_rd_chunk_tags_nand(dev, in->hdr_chunk, chunkData, &tags); -+ oh = (yaffs_obj_header *) chunkData; - --/*------------------------------ Directory Functions ----------------------------- */ -+ in->yst_mode = oh->yst_mode; -+#ifdef CONFIG_YAFFS_WINCE -+ in->win_atime[0] = oh->win_atime[0]; -+ in->win_ctime[0] = oh->win_ctime[0]; -+ in->win_mtime[0] = oh->win_mtime[0]; -+ in->win_atime[1] = oh->win_atime[1]; -+ in->win_ctime[1] = oh->win_ctime[1]; -+ in->win_mtime[1] = oh->win_mtime[1]; -+#else -+ in->yst_uid = oh->yst_uid; -+ in->yst_gid = oh->yst_gid; -+ in->yst_atime = oh->yst_atime; -+ in->yst_mtime = oh->yst_mtime; -+ in->yst_ctime = oh->yst_ctime; -+ in->yst_rdev = oh->yst_rdev; - --static void yaffs_VerifyObjectInDirectory(yaffs_Object *obj) --{ -- struct ylist_head *lh; -- yaffs_Object *listObj; -+#endif -+ yaffs_set_obj_name_from_oh(in, oh); - -- int count = 0; -+ if (in->variant_type == YAFFS_OBJECT_TYPE_SYMLINK) { -+ in->variant.symlink_variant.alias = -+ yaffs_clone_str(oh->alias); -+ if (!in->variant.symlink_variant.alias) -+ alloc_failed = 1; /* Not returned to caller */ -+ } - -- if (!obj) { -- T(YAFFS_TRACE_ALWAYS, (TSTR("No object to verify" TENDSTR))); -- YBUG(); -- return; -+ yaffs_release_temp_buffer(dev, chunkData, __LINE__); - } -+} - -- if (yaffs_SkipVerification(obj->myDev)) -- return; -+/*------------------------------ Directory Functions ----------------------------- */ - -- if (!obj->parent) { -- T(YAFFS_TRACE_ALWAYS, (TSTR("Object does not have parent" TENDSTR))); -- YBUG(); -+/* -+ *yaffs_update_parent() handles fixing a directories mtime and ctime when a new -+ * link (ie. name) is created or deleted in the directory. -+ * -+ * ie. -+ * create dir/a : update dir's mtime/ctime -+ * rm dir/a: update dir's mtime/ctime -+ * modify dir/a: don't update dir's mtimme/ctime -+ * -+ * This can be handled immediately or defered. Defering helps reduce the number -+ * of updates when many files in a directory are changed within a brief period. -+ * -+ * If the directory updating is defered then yaffs_update_dirty_dirs must be -+ * called periodically. -+ */ -+ -+static void yaffs_update_parent(yaffs_obj_t *obj) -+{ -+ yaffs_dev_t *dev; -+ if(!obj) - return; -- } -- -- if (obj->parent->variantType != YAFFS_OBJECT_TYPE_DIRECTORY) { -- T(YAFFS_TRACE_ALWAYS, (TSTR("Parent is not directory" TENDSTR))); -- YBUG(); -- } -- -- /* Iterate through the objects in each hash entry */ -+#ifndef CONFIG_YAFFS_WINCE - -- ylist_for_each(lh, &obj->parent->variant.directoryVariant.children) { -- if (lh) { -- listObj = ylist_entry(lh, yaffs_Object, siblings); -- yaffs_VerifyObject(listObj); -- if (obj == listObj) -- count++; -+ dev = obj->my_dev; -+ obj->dirty = 1; -+ obj->yst_mtime = obj->yst_ctime = Y_CURRENT_TIME; -+ if(dev->param.defered_dir_update){ -+ struct ylist_head *link = &obj->variant.dir_variant.dirty; -+ -+ if(ylist_empty(link)){ -+ ylist_add(link,&dev->dirty_dirs); -+ T(YAFFS_TRACE_BACKGROUND, (TSTR("Added object %d to dirty directories" TENDSTR),obj->obj_id)); - } -- } - -- if (count != 1) { -- T(YAFFS_TRACE_ALWAYS, (TSTR("Object in directory %d times" TENDSTR), count)); -- YBUG(); -- } -+ } else -+ yaffs_update_oh(obj, NULL, 0, 0, 0, NULL); -+#endif - } - --static void yaffs_VerifyDirectory(yaffs_Object *directory) -+void yaffs_update_dirty_dirs(yaffs_dev_t *dev) - { -- struct ylist_head *lh; -- yaffs_Object *listObj; -- -- if (!directory) { -- YBUG(); -- return; -- } -+ struct ylist_head *link; -+ yaffs_obj_t *obj; -+ yaffs_dir_s *dS; -+ yaffs_obj_variant *oV; - -- if (yaffs_SkipFullVerification(directory->myDev)) -- return; -+ T(YAFFS_TRACE_BACKGROUND, (TSTR("Update dirty directories" TENDSTR))); - -- if (directory->variantType != YAFFS_OBJECT_TYPE_DIRECTORY) { -- T(YAFFS_TRACE_ALWAYS, (TSTR("Directory has wrong type: %d" TENDSTR), directory->variantType)); -- YBUG(); -- } -+ while(!ylist_empty(&dev->dirty_dirs)){ -+ link = dev->dirty_dirs.next; -+ ylist_del_init(link); -+ -+ dS=ylist_entry(link,yaffs_dir_s,dirty); -+ oV = ylist_entry(dS,yaffs_obj_variant,dir_variant); -+ obj = ylist_entry(oV,yaffs_obj_t,variant); - -- /* Iterate through the objects in each hash entry */ -+ T(YAFFS_TRACE_BACKGROUND, (TSTR("Update directory %d" TENDSTR), obj->obj_id)); - -- ylist_for_each(lh, &directory->variant.directoryVariant.children) { -- if (lh) { -- listObj = ylist_entry(lh, yaffs_Object, siblings); -- if (listObj->parent != directory) { -- T(YAFFS_TRACE_ALWAYS, (TSTR("Object in directory list has wrong parent %p" TENDSTR), listObj->parent)); -- YBUG(); -- } -- yaffs_VerifyObjectInDirectory(listObj); -- } -+ if(obj->dirty) -+ yaffs_update_oh(obj, NULL, 0, 0, 0, NULL); - } - } - -- --static void yaffs_RemoveObjectFromDirectory(yaffs_Object *obj) -+static void yaffs_remove_obj_from_dir(yaffs_obj_t *obj) - { -- yaffs_Device *dev = obj->myDev; -- yaffs_Object *parent; -+ yaffs_dev_t *dev = obj->my_dev; -+ yaffs_obj_t *parent; - -- yaffs_VerifyObjectInDirectory(obj); -+ yaffs_verify_obj_in_dir(obj); - parent = obj->parent; - -- yaffs_VerifyDirectory(parent); -+ yaffs_verify_dir(parent); - -- if (dev && dev->removeObjectCallback) -- dev->removeObjectCallback(obj); -+ if (dev && dev->param.remove_obj_fn) -+ dev->param.remove_obj_fn(obj); - - - ylist_del_init(&obj->siblings); - obj->parent = NULL; -- -- yaffs_VerifyDirectory(parent); -+ -+ yaffs_verify_dir(parent); - } - -- --static void yaffs_AddObjectToDirectory(yaffs_Object *directory, -- yaffs_Object *obj) -+void yaffs_add_obj_to_dir(yaffs_obj_t *directory, -+ yaffs_obj_t *obj) - { - if (!directory) { - T(YAFFS_TRACE_ALWAYS, -@@ -6699,7 +4495,7 @@ static void yaffs_AddObjectToDirectory(y - YBUG(); - return; - } -- if (directory->variantType != YAFFS_OBJECT_TYPE_DIRECTORY) { -+ if (directory->variant_type != YAFFS_OBJECT_TYPE_DIRECTORY) { - T(YAFFS_TRACE_ALWAYS, - (TSTR - ("tragedy: Trying to add an object to a non-directory" -@@ -6713,27 +4509,27 @@ static void yaffs_AddObjectToDirectory(y - } - - -- yaffs_VerifyDirectory(directory); -+ yaffs_verify_dir(directory); - -- yaffs_RemoveObjectFromDirectory(obj); -+ yaffs_remove_obj_from_dir(obj); - - - /* Now add it */ -- ylist_add(&obj->siblings, &directory->variant.directoryVariant.children); -+ ylist_add(&obj->siblings, &directory->variant.dir_variant.children); - obj->parent = directory; - -- if (directory == obj->myDev->unlinkedDir -- || directory == obj->myDev->deletedDir) { -+ if (directory == obj->my_dev->unlinked_dir -+ || directory == obj->my_dev->del_dir) { - obj->unlinked = 1; -- obj->myDev->nUnlinkedFiles++; -- obj->renameAllowed = 0; -+ obj->my_dev->n_unlinked_files++; -+ obj->rename_allowed = 0; - } - -- yaffs_VerifyDirectory(directory); -- yaffs_VerifyObjectInDirectory(obj); -+ yaffs_verify_dir(directory); -+ yaffs_verify_obj_in_dir(obj); - } - --yaffs_Object *yaffs_FindObjectByName(yaffs_Object *directory, -+yaffs_obj_t *yaffs_find_by_name(yaffs_obj_t *directory, - const YCHAR *name) - { - int sum; -@@ -6741,7 +4537,7 @@ yaffs_Object *yaffs_FindObjectByName(yaf - struct ylist_head *i; - YCHAR buffer[YAFFS_MAX_NAME_LENGTH + 1]; - -- yaffs_Object *l; -+ yaffs_obj_t *l; - - if (!name) - return NULL; -@@ -6749,39 +4545,39 @@ yaffs_Object *yaffs_FindObjectByName(yaf - if (!directory) { - T(YAFFS_TRACE_ALWAYS, - (TSTR -- ("tragedy: yaffs_FindObjectByName: null pointer directory" -+ ("tragedy: yaffs_find_by_name: null pointer directory" - TENDSTR))); - YBUG(); - return NULL; - } -- if (directory->variantType != YAFFS_OBJECT_TYPE_DIRECTORY) { -+ if (directory->variant_type != YAFFS_OBJECT_TYPE_DIRECTORY) { - T(YAFFS_TRACE_ALWAYS, - (TSTR -- ("tragedy: yaffs_FindObjectByName: non-directory" TENDSTR))); -+ ("tragedy: yaffs_find_by_name: non-directory" TENDSTR))); - YBUG(); - } - -- sum = yaffs_CalcNameSum(name); -+ sum = yaffs_calc_name_sum(name); - -- ylist_for_each(i, &directory->variant.directoryVariant.children) { -+ ylist_for_each(i, &directory->variant.dir_variant.children) { - if (i) { -- l = ylist_entry(i, yaffs_Object, siblings); -+ l = ylist_entry(i, yaffs_obj_t, siblings); - - if (l->parent != directory) - YBUG(); - -- yaffs_CheckObjectDetailsLoaded(l); -+ yaffs_check_obj_details_loaded(l); - - /* Special case for lost-n-found */ -- if (l->objectId == YAFFS_OBJECTID_LOSTNFOUND) { -+ if (l->obj_id == YAFFS_OBJECTID_LOSTNFOUND) { - if (yaffs_strcmp(name, YAFFS_LOSTNFOUND_NAME) == 0) - return l; -- } else if (yaffs_SumCompare(l->sum, sum) || l->hdrChunk <= 0) { -+ } else if (yaffs_sum_cmp(l->sum, sum) || l->hdr_chunk <= 0) { - /* LostnFound chunk called Objxxx - * Do a real check - */ -- yaffs_GetObjectName(l, buffer, -- YAFFS_MAX_NAME_LENGTH); -+ yaffs_get_obj_name(l, buffer, -+ YAFFS_MAX_NAME_LENGTH + 1); - if (yaffs_strncmp(name, buffer, YAFFS_MAX_NAME_LENGTH) == 0) - return l; - } -@@ -6793,31 +4589,31 @@ yaffs_Object *yaffs_FindObjectByName(yaf - - - #if 0 --int yaffs_ApplyToDirectoryChildren(yaffs_Object *theDir, -- int (*fn) (yaffs_Object *)) -+int yaffs_ApplyToDirectoryChildren(yaffs_obj_t *the_dir, -+ int (*fn) (yaffs_obj_t *)) - { - struct ylist_head *i; -- yaffs_Object *l; -+ yaffs_obj_t *l; - -- if (!theDir) { -+ if (!the_dir) { - T(YAFFS_TRACE_ALWAYS, - (TSTR -- ("tragedy: yaffs_FindObjectByName: null pointer directory" -+ ("tragedy: yaffs_find_by_name: null pointer directory" - TENDSTR))); - YBUG(); - return YAFFS_FAIL; - } -- if (theDir->variantType != YAFFS_OBJECT_TYPE_DIRECTORY) { -+ if (the_dir->variant_type != YAFFS_OBJECT_TYPE_DIRECTORY) { - T(YAFFS_TRACE_ALWAYS, - (TSTR -- ("tragedy: yaffs_FindObjectByName: non-directory" TENDSTR))); -+ ("tragedy: yaffs_find_by_name: non-directory" TENDSTR))); - YBUG(); - return YAFFS_FAIL; - } - -- ylist_for_each(i, &theDir->variant.directoryVariant.children) { -+ ylist_for_each(i, &the_dir->variant.dir_variant.children) { - if (i) { -- l = ylist_entry(i, yaffs_Object, siblings); -+ l = ylist_entry(i, yaffs_obj_t, siblings); - if (l && !fn(l)) - return YAFFS_FAIL; - } -@@ -6832,82 +4628,175 @@ int yaffs_ApplyToDirectoryChildren(yaffs - * actual object. - */ - --yaffs_Object *yaffs_GetEquivalentObject(yaffs_Object *obj) -+yaffs_obj_t *yaffs_get_equivalent_obj(yaffs_obj_t *obj) - { -- if (obj && obj->variantType == YAFFS_OBJECT_TYPE_HARDLINK) { -+ if (obj && obj->variant_type == YAFFS_OBJECT_TYPE_HARDLINK) { - /* We want the object id of the equivalent object, not this one */ -- obj = obj->variant.hardLinkVariant.equivalentObject; -- yaffs_CheckObjectDetailsLoaded(obj); -+ obj = obj->variant.hardlink_variant.equiv_obj; -+ yaffs_check_obj_details_loaded(obj); - } - return obj; - } - --int yaffs_GetObjectName(yaffs_Object *obj, YCHAR *name, int buffSize) --{ -- memset(name, 0, buffSize * sizeof(YCHAR)); -- -- yaffs_CheckObjectDetailsLoaded(obj); -+/* -+ * A note or two on object names. -+ * * If the object name is missing, we then make one up in the form objnnn -+ * -+ * * ASCII names are stored in the object header's name field from byte zero -+ * * Unicode names are historically stored starting from byte zero. -+ * -+ * Then there are automatic Unicode names... -+ * The purpose of these is to save names in a way that can be read as -+ * ASCII or Unicode names as appropriate, thus allowing a Unicode and ASCII -+ * system to share files. -+ * -+ * These automatic unicode are stored slightly differently... -+ * - If the name can fit in the ASCII character space then they are saved as -+ * ascii names as per above. -+ * - If the name needs Unicode then the name is saved in Unicode -+ * starting at oh->name[1]. - -- if (obj->objectId == YAFFS_OBJECTID_LOSTNFOUND) { -- yaffs_strncpy(name, YAFFS_LOSTNFOUND_NAME, buffSize - 1); -- } else if (obj->hdrChunk <= 0) { -+ */ -+static void yaffs_fix_null_name(yaffs_obj_t * obj,YCHAR * name, int buffer_size) -+{ -+ /* Create an object name if we could not find one. */ -+ if(yaffs_strnlen(name,YAFFS_MAX_NAME_LENGTH) == 0){ - YCHAR locName[20]; - YCHAR numString[20]; - YCHAR *x = &numString[19]; -- unsigned v = obj->objectId; -+ unsigned v = obj->obj_id; - numString[19] = 0; -- while (v > 0) { -+ while(v>0){ - x--; - *x = '0' + (v % 10); - v /= 10; - } - /* make up a name */ - yaffs_strcpy(locName, YAFFS_LOSTNFOUND_PREFIX); -- yaffs_strcat(locName, x); -- yaffs_strncpy(name, locName, buffSize - 1); -+ yaffs_strcat(locName,x); -+ yaffs_strncpy(name, locName, buffer_size - 1); -+ } -+} -+ -+static void yaffs_load_name_from_oh(yaffs_dev_t *dev,YCHAR *name, const YCHAR *ohName, int bufferSize) -+{ -+#ifdef CONFIG_YAFFS_AUTO_UNICODE -+ if(dev->param.auto_unicode){ -+ if(*ohName){ -+ /* It is an ASCII name, so do an ASCII to unicode conversion */ -+ const char *asciiOhName = (const char *)ohName; -+ int n = bufferSize - 1; -+ while(n > 0 && *asciiOhName){ -+ *name = *asciiOhName; -+ name++; -+ asciiOhName++; -+ n--; -+ } -+ } else -+ yaffs_strncpy(name,ohName+1, bufferSize -1); -+ } else -+#endif -+ yaffs_strncpy(name, ohName, bufferSize - 1); -+} -+ -+ -+static void yaffs_load_oh_from_name(yaffs_dev_t *dev, YCHAR *ohName, const YCHAR *name) -+{ -+#ifdef CONFIG_YAFFS_AUTO_UNICODE -+ -+ int isAscii; -+ YCHAR *w; -+ -+ if(dev->param.auto_unicode){ -+ -+ isAscii = 1; -+ w = name; -+ -+ /* Figure out if the name will fit in ascii character set */ -+ while(isAscii && *w){ -+ if((*w) & 0xff00) -+ isAscii = 0; -+ w++; -+ } - -+ if(isAscii){ -+ /* It is an ASCII name, so do a unicode to ascii conversion */ -+ char *asciiOhName = (char *)ohName; -+ int n = YAFFS_MAX_NAME_LENGTH - 1; -+ while(n > 0 && *name){ -+ *asciiOhName= *name; -+ name++; -+ asciiOhName++; -+ n--; -+ } -+ } else{ -+ /* It is a unicode name, so save starting at the second YCHAR */ -+ *ohName = 0; -+ yaffs_strncpy(ohName+1,name, YAFFS_MAX_NAME_LENGTH -2); -+ } - } -+ else -+#endif -+ yaffs_strncpy(ohName,name, YAFFS_MAX_NAME_LENGTH - 1); -+ -+} -+ -+int yaffs_get_obj_name(yaffs_obj_t * obj, YCHAR * name, int buffer_size) -+{ -+ memset(name, 0, buffer_size * sizeof(YCHAR)); -+ -+ yaffs_check_obj_details_loaded(obj); -+ -+ if (obj->obj_id == YAFFS_OBJECTID_LOSTNFOUND) { -+ yaffs_strncpy(name, YAFFS_LOSTNFOUND_NAME, buffer_size - 1); -+ } - #ifdef CONFIG_YAFFS_SHORT_NAMES_IN_RAM -- else if (obj->shortName[0]) -- yaffs_strcpy(name, obj->shortName); -+ else if (obj->short_name[0]) { -+ yaffs_strcpy(name, obj->short_name); -+ } - #endif -- else { -+ else if(obj->hdr_chunk > 0) { - int result; -- __u8 *buffer = yaffs_GetTempBuffer(obj->myDev, __LINE__); -+ __u8 *buffer = yaffs_get_temp_buffer(obj->my_dev, __LINE__); - -- yaffs_ObjectHeader *oh = (yaffs_ObjectHeader *) buffer; -+ yaffs_obj_header *oh = (yaffs_obj_header *) buffer; - -- memset(buffer, 0, obj->myDev->nDataBytesPerChunk); -+ memset(buffer, 0, obj->my_dev->data_bytes_per_chunk); - -- if (obj->hdrChunk > 0) { -- result = yaffs_ReadChunkWithTagsFromNAND(obj->myDev, -- obj->hdrChunk, buffer, -+ if (obj->hdr_chunk > 0) { -+ result = yaffs_rd_chunk_tags_nand(obj->my_dev, -+ obj->hdr_chunk, buffer, - NULL); - } -- yaffs_strncpy(name, oh->name, buffSize - 1); -+ yaffs_load_name_from_oh(obj->my_dev,name,oh->name,buffer_size); - -- yaffs_ReleaseTempBuffer(obj->myDev, buffer, __LINE__); -+ yaffs_release_temp_buffer(obj->my_dev, buffer, __LINE__); - } - -- return yaffs_strlen(name); -+ yaffs_fix_null_name(obj,name,buffer_size); -+ -+ return yaffs_strnlen(name,YAFFS_MAX_NAME_LENGTH); - } - --int yaffs_GetObjectFileLength(yaffs_Object *obj) -+ -+int yaffs_get_obj_length(yaffs_obj_t *obj) - { - /* Dereference any hard linking */ -- obj = yaffs_GetEquivalentObject(obj); -+ obj = yaffs_get_equivalent_obj(obj); - -- if (obj->variantType == YAFFS_OBJECT_TYPE_FILE) -- return obj->variant.fileVariant.fileSize; -- if (obj->variantType == YAFFS_OBJECT_TYPE_SYMLINK) -- return yaffs_strlen(obj->variant.symLinkVariant.alias); -- else { -+ if (obj->variant_type == YAFFS_OBJECT_TYPE_FILE) -+ return obj->variant.file_variant.file_size; -+ if (obj->variant_type == YAFFS_OBJECT_TYPE_SYMLINK){ -+ if(!obj->variant.symlink_variant.alias) -+ return 0; -+ return yaffs_strnlen(obj->variant.symlink_variant.alias,YAFFS_MAX_ALIAS_LENGTH); -+ } else { - /* Only a directory should drop through to here */ -- return obj->myDev->nDataBytesPerChunk; -+ return obj->my_dev->data_bytes_per_chunk; - } - } - --int yaffs_GetObjectLinkCount(yaffs_Object *obj) -+int yaffs_get_obj_link_count(yaffs_obj_t *obj) - { - int count = 0; - struct ylist_head *i; -@@ -6915,24 +4804,24 @@ int yaffs_GetObjectLinkCount(yaffs_Objec - if (!obj->unlinked) - count++; /* the object itself */ - -- ylist_for_each(i, &obj->hardLinks) -+ ylist_for_each(i, &obj->hard_links) - count++; /* add the hard links; */ - - return count; - } - --int yaffs_GetObjectInode(yaffs_Object *obj) -+int yaffs_get_obj_inode(yaffs_obj_t *obj) - { -- obj = yaffs_GetEquivalentObject(obj); -+ obj = yaffs_get_equivalent_obj(obj); - -- return obj->objectId; -+ return obj->obj_id; - } - --unsigned yaffs_GetObjectType(yaffs_Object *obj) -+unsigned yaffs_get_obj_type(yaffs_obj_t *obj) - { -- obj = yaffs_GetEquivalentObject(obj); -+ obj = yaffs_get_equivalent_obj(obj); - -- switch (obj->variantType) { -+ switch (obj->variant_type) { - case YAFFS_OBJECT_TYPE_FILE: - return DT_REG; - break; -@@ -6960,18 +4849,18 @@ unsigned yaffs_GetObjectType(yaffs_Objec - } - } - --YCHAR *yaffs_GetSymlinkAlias(yaffs_Object *obj) -+YCHAR *yaffs_get_symlink_alias(yaffs_obj_t *obj) - { -- obj = yaffs_GetEquivalentObject(obj); -- if (obj->variantType == YAFFS_OBJECT_TYPE_SYMLINK) -- return yaffs_CloneString(obj->variant.symLinkVariant.alias); -+ obj = yaffs_get_equivalent_obj(obj); -+ if (obj->variant_type == YAFFS_OBJECT_TYPE_SYMLINK) -+ return yaffs_clone_str(obj->variant.symlink_variant.alias); - else -- return yaffs_CloneString(_Y("")); -+ return yaffs_clone_str(_Y("")); - } - - #ifndef CONFIG_YAFFS_WINCE - --int yaffs_SetAttributes(yaffs_Object *obj, struct iattr *attr) -+int yaffs_set_attribs(yaffs_obj_t *obj, struct iattr *attr) - { - unsigned int valid = attr->ia_valid; - -@@ -6990,14 +4879,14 @@ int yaffs_SetAttributes(yaffs_Object *ob - obj->yst_mtime = Y_TIME_CONVERT(attr->ia_mtime); - - if (valid & ATTR_SIZE) -- yaffs_ResizeFile(obj, attr->ia_size); -+ yaffs_resize_file(obj, attr->ia_size); - -- yaffs_UpdateObjectHeader(obj, NULL, 1, 0, 0); -+ yaffs_update_oh(obj, NULL, 1, 0, 0, NULL); - - return YAFFS_OK; - - } --int yaffs_GetAttributes(yaffs_Object *obj, struct iattr *attr) -+int yaffs_get_attribs(yaffs_obj_t *obj, struct iattr *attr) - { - unsigned int valid = 0; - -@@ -7015,7 +4904,7 @@ int yaffs_GetAttributes(yaffs_Object *ob - Y_TIME_CONVERT(attr->ia_mtime) = obj->yst_mtime; - valid |= ATTR_MTIME; - -- attr->ia_size = yaffs_GetFileSize(obj); -+ attr->ia_size = yaffs_get_file_size(obj); - valid |= ATTR_SIZE; - - attr->ia_valid = valid; -@@ -7025,20 +4914,137 @@ int yaffs_GetAttributes(yaffs_Object *ob - - #endif - -+ -+static int yaffs_do_xattrib_mod(yaffs_obj_t *obj, int set, const YCHAR *name, const void *value, int size, int flags) -+{ -+ yaffs_xattr_mod xmod; -+ -+ int result; -+ -+ xmod.set = set; -+ xmod.name = name; -+ xmod.data = value; -+ xmod.size = size; -+ xmod.flags = flags; -+ xmod.result = -ENOSPC; -+ -+ result = yaffs_update_oh(obj, NULL, 0, 0, 0, &xmod); -+ -+ if(result > 0) -+ return xmod.result; -+ else -+ return -ENOSPC; -+} -+ -+static int yaffs_apply_xattrib_mod(yaffs_obj_t *obj, char *buffer, yaffs_xattr_mod *xmod) -+{ -+ int retval = 0; -+ int x_offs = sizeof(yaffs_obj_header); -+ yaffs_dev_t *dev = obj->my_dev; -+ int x_size = dev->data_bytes_per_chunk - sizeof(yaffs_obj_header); -+ -+ char * x_buffer = buffer + x_offs; -+ -+ if(xmod->set) -+ retval = nval_set(x_buffer, x_size, xmod->name, xmod->data, xmod->size, xmod->flags); -+ else -+ retval = nval_del(x_buffer, x_size, xmod->name); -+ -+ obj->has_xattr = nval_hasvalues(x_buffer, x_size); -+ obj->xattr_known = 1; -+ -+ xmod->result = retval; -+ -+ return retval; -+} -+ -+static int yaffs_do_xattrib_fetch(yaffs_obj_t *obj, const YCHAR *name, void *value, int size) -+{ -+ char *buffer = NULL; -+ int result; -+ yaffs_ext_tags tags; -+ yaffs_dev_t *dev = obj->my_dev; -+ int x_offs = sizeof(yaffs_obj_header); -+ int x_size = dev->data_bytes_per_chunk - sizeof(yaffs_obj_header); -+ -+ char * x_buffer; -+ -+ int retval = 0; -+ -+ if(obj->hdr_chunk < 1) -+ return -ENODATA; -+ -+ /* If we know that the object has no xattribs then don't do all the -+ * reading and parsing. -+ */ -+ if(obj->xattr_known && !obj->has_xattr){ -+ if(name) -+ return -ENODATA; -+ else -+ return 0; -+ } -+ -+ buffer = (char *) yaffs_get_temp_buffer(dev, __LINE__); -+ if(!buffer) -+ return -ENOMEM; -+ -+ result = yaffs_rd_chunk_tags_nand(dev,obj->hdr_chunk, (__u8 *)buffer, &tags); -+ -+ if(result != YAFFS_OK) -+ retval = -ENOENT; -+ else{ -+ x_buffer = buffer + x_offs; -+ -+ if (!obj->xattr_known){ -+ obj->has_xattr = nval_hasvalues(x_buffer, x_size); -+ obj->xattr_known = 1; -+ } -+ -+ if(name) -+ retval = nval_get(x_buffer, x_size, name, value, size); -+ else -+ retval = nval_list(x_buffer, x_size, value,size); -+ } -+ yaffs_release_temp_buffer(dev,(__u8 *)buffer,__LINE__); -+ return retval; -+} -+ -+int yaffs_set_xattrib(yaffs_obj_t *obj, const YCHAR *name, const void * value, int size, int flags) -+{ -+ return yaffs_do_xattrib_mod(obj, 1, name, value, size, flags); -+} -+ -+int yaffs_remove_xattrib(yaffs_obj_t *obj, const YCHAR *name) -+{ -+ return yaffs_do_xattrib_mod(obj, 0, name, NULL, 0, 0); -+} -+ -+int yaffs_get_xattrib(yaffs_obj_t *obj, const YCHAR *name, void *value, int size) -+{ -+ return yaffs_do_xattrib_fetch(obj, name, value, size); -+} -+ -+int yaffs_list_xattrib(yaffs_obj_t *obj, char *buffer, int size) -+{ -+ return yaffs_do_xattrib_fetch(obj, NULL, buffer,size); -+} -+ -+ -+ - #if 0 --int yaffs_DumpObject(yaffs_Object *obj) -+int yaffs_dump_obj(yaffs_obj_t *obj) - { - YCHAR name[257]; - -- yaffs_GetObjectName(obj, name, 256); -+ yaffs_get_obj_name(obj, name, YAFFS_MAX_NAME_LENGTH + 1); - - T(YAFFS_TRACE_ALWAYS, - (TSTR - ("Object %d, inode %d \"%s\"\n dirty %d valid %d serial %d sum %d" - " chunk %d type %d size %d\n" -- TENDSTR), obj->objectId, yaffs_GetObjectInode(obj), name, -- obj->dirty, obj->valid, obj->serial, obj->sum, obj->hdrChunk, -- yaffs_GetObjectType(obj), yaffs_GetObjectFileLength(obj))); -+ TENDSTR), obj->obj_id, yaffs_get_obj_inode(obj), name, -+ obj->dirty, obj->valid, obj->serial, obj->sum, obj->hdr_chunk, -+ yaffs_get_obj_type(obj), yaffs_get_obj_length(obj))); - - return YAFFS_OK; - } -@@ -7046,72 +5052,74 @@ int yaffs_DumpObject(yaffs_Object *obj) - - /*---------------------------- Initialisation code -------------------------------------- */ - --static int yaffs_CheckDevFunctions(const yaffs_Device *dev) -+static int yaffs_cehck_dev_fns(const yaffs_dev_t *dev) - { - - /* Common functions, gotta have */ -- if (!dev->eraseBlockInNAND || !dev->initialiseNAND) -+ if (!dev->param.erase_fn || !dev->param.initialise_flash_fn) - return 0; - - #ifdef CONFIG_YAFFS_YAFFS2 - - /* Can use the "with tags" style interface for yaffs1 or yaffs2 */ -- if (dev->writeChunkWithTagsToNAND && -- dev->readChunkWithTagsFromNAND && -- !dev->writeChunkToNAND && -- !dev->readChunkFromNAND && -- dev->markNANDBlockBad && dev->queryNANDBlock) -+ if (dev->param.write_chunk_tags_fn && -+ dev->param.read_chunk_tags_fn && -+ !dev->param.write_chunk_fn && -+ !dev->param.read_chunk_fn && -+ dev->param.bad_block_fn && -+ dev->param.query_block_fn) - return 1; - #endif - - /* Can use the "spare" style interface for yaffs1 */ -- if (!dev->isYaffs2 && -- !dev->writeChunkWithTagsToNAND && -- !dev->readChunkWithTagsFromNAND && -- dev->writeChunkToNAND && -- dev->readChunkFromNAND && -- !dev->markNANDBlockBad && !dev->queryNANDBlock) -+ if (!dev->param.is_yaffs2 && -+ !dev->param.write_chunk_tags_fn && -+ !dev->param.read_chunk_tags_fn && -+ dev->param.write_chunk_fn && -+ dev->param.read_chunk_fn && -+ !dev->param.bad_block_fn && -+ !dev->param.query_block_fn) - return 1; - -- return 0; /* bad */ -+ return 0; /* bad */ - } - - --static int yaffs_CreateInitialDirectories(yaffs_Device *dev) -+static int yaffs_create_initial_dir(yaffs_dev_t *dev) - { - /* Initialise the unlinked, deleted, root and lost and found directories */ - -- dev->lostNFoundDir = dev->rootDir = NULL; -- dev->unlinkedDir = dev->deletedDir = NULL; -+ dev->lost_n_found = dev->root_dir = NULL; -+ dev->unlinked_dir = dev->del_dir = NULL; - -- dev->unlinkedDir = -- yaffs_CreateFakeDirectory(dev, YAFFS_OBJECTID_UNLINKED, S_IFDIR); -+ dev->unlinked_dir = -+ yaffs_create_fake_dir(dev, YAFFS_OBJECTID_UNLINKED, S_IFDIR); - -- dev->deletedDir = -- yaffs_CreateFakeDirectory(dev, YAFFS_OBJECTID_DELETED, S_IFDIR); -+ dev->del_dir = -+ yaffs_create_fake_dir(dev, YAFFS_OBJECTID_DELETED, S_IFDIR); - -- dev->rootDir = -- yaffs_CreateFakeDirectory(dev, YAFFS_OBJECTID_ROOT, -+ dev->root_dir = -+ yaffs_create_fake_dir(dev, YAFFS_OBJECTID_ROOT, - YAFFS_ROOT_MODE | S_IFDIR); -- dev->lostNFoundDir = -- yaffs_CreateFakeDirectory(dev, YAFFS_OBJECTID_LOSTNFOUND, -+ dev->lost_n_found = -+ yaffs_create_fake_dir(dev, YAFFS_OBJECTID_LOSTNFOUND, - YAFFS_LOSTNFOUND_MODE | S_IFDIR); - -- if (dev->lostNFoundDir && dev->rootDir && dev->unlinkedDir && dev->deletedDir) { -- yaffs_AddObjectToDirectory(dev->rootDir, dev->lostNFoundDir); -+ if (dev->lost_n_found && dev->root_dir && dev->unlinked_dir && dev->del_dir) { -+ yaffs_add_obj_to_dir(dev->root_dir, dev->lost_n_found); - return YAFFS_OK; - } - - return YAFFS_FAIL; - } - --int yaffs_GutsInitialise(yaffs_Device *dev) -+int yaffs_guts_initialise(yaffs_dev_t *dev) - { - int init_failed = 0; - unsigned x; - int bits; - -- T(YAFFS_TRACE_TRACING, (TSTR("yaffs: yaffs_GutsInitialise()" TENDSTR))); -+ T(YAFFS_TRACE_TRACING, (TSTR("yaffs: yaffs_guts_initialise()" TENDSTR))); - - /* Check stuff that must be set */ - -@@ -7120,52 +5128,52 @@ int yaffs_GutsInitialise(yaffs_Device *d - return YAFFS_FAIL; - } - -- dev->internalStartBlock = dev->startBlock; -- dev->internalEndBlock = dev->endBlock; -- dev->blockOffset = 0; -- dev->chunkOffset = 0; -- dev->nFreeChunks = 0; -- -- dev->gcBlock = -1; -- -- if (dev->startBlock == 0) { -- dev->internalStartBlock = dev->startBlock + 1; -- dev->internalEndBlock = dev->endBlock + 1; -- dev->blockOffset = 1; -- dev->chunkOffset = dev->nChunksPerBlock; -+ dev->internal_start_block = dev->param.start_block; -+ dev->internal_end_block = dev->param.end_block; -+ dev->block_offset = 0; -+ dev->chunk_offset = 0; -+ dev->n_free_chunks = 0; -+ -+ dev->gc_block = 0; -+ -+ if (dev->param.start_block == 0) { -+ dev->internal_start_block = dev->param.start_block + 1; -+ dev->internal_end_block = dev->param.end_block + 1; -+ dev->block_offset = 1; -+ dev->chunk_offset = dev->param.chunks_per_block; - } - - /* Check geometry parameters. */ - -- if ((!dev->inbandTags && dev->isYaffs2 && dev->totalBytesPerChunk < 1024) || -- (!dev->isYaffs2 && dev->totalBytesPerChunk < 512) || -- (dev->inbandTags && !dev->isYaffs2) || -- dev->nChunksPerBlock < 2 || -- dev->nReservedBlocks < 2 || -- dev->internalStartBlock <= 0 || -- dev->internalEndBlock <= 0 || -- dev->internalEndBlock <= (dev->internalStartBlock + dev->nReservedBlocks + 2)) { /* otherwise it is too small */ -+ if ((!dev->param.inband_tags && dev->param.is_yaffs2 && dev->param.total_bytes_per_chunk < 1024) || -+ (!dev->param.is_yaffs2 && dev->param.total_bytes_per_chunk < 512) || -+ (dev->param.inband_tags && !dev->param.is_yaffs2) || -+ dev->param.chunks_per_block < 2 || -+ dev->param.n_reserved_blocks < 2 || -+ dev->internal_start_block <= 0 || -+ dev->internal_end_block <= 0 || -+ dev->internal_end_block <= (dev->internal_start_block + dev->param.n_reserved_blocks + 2)) { /* otherwise it is too small */ - T(YAFFS_TRACE_ALWAYS, - (TSTR -- ("yaffs: NAND geometry problems: chunk size %d, type is yaffs%s, inbandTags %d " -- TENDSTR), dev->totalBytesPerChunk, dev->isYaffs2 ? "2" : "", dev->inbandTags)); -+ ("yaffs: NAND geometry problems: chunk size %d, type is yaffs%s, inband_tags %d " -+ TENDSTR), dev->param.total_bytes_per_chunk, dev->param.is_yaffs2 ? "2" : "", dev->param.inband_tags)); - return YAFFS_FAIL; - } - -- if (yaffs_InitialiseNAND(dev) != YAFFS_OK) { -+ if (yaffs_init_nand(dev) != YAFFS_OK) { - T(YAFFS_TRACE_ALWAYS, - (TSTR("yaffs: InitialiseNAND failed" TENDSTR))); - return YAFFS_FAIL; - } - - /* Sort out space for inband tags, if required */ -- if (dev->inbandTags) -- dev->nDataBytesPerChunk = dev->totalBytesPerChunk - sizeof(yaffs_PackedTags2TagsPart); -+ if (dev->param.inband_tags) -+ dev->data_bytes_per_chunk = dev->param.total_bytes_per_chunk - sizeof(yaffs_PackedTags2TagsPart); - else -- dev->nDataBytesPerChunk = dev->totalBytesPerChunk; -+ dev->data_bytes_per_chunk = dev->param.total_bytes_per_chunk; - - /* Got the right mix of functions? */ -- if (!yaffs_CheckDevFunctions(dev)) { -+ if (!yaffs_cehck_dev_fns(dev)) { - /* Function missing */ - T(YAFFS_TRACE_ALWAYS, - (TSTR -@@ -7175,13 +5183,13 @@ int yaffs_GutsInitialise(yaffs_Device *d - } - - /* This is really a compilation check. */ -- if (!yaffs_CheckStructures()) { -+ if (!yaffs_check_structures()) { - T(YAFFS_TRACE_ALWAYS, -- (TSTR("yaffs_CheckStructures failed\n" TENDSTR))); -+ (TSTR("yaffs_check_structures failed\n" TENDSTR))); - return YAFFS_FAIL; - } - -- if (dev->isMounted) { -+ if (dev->is_mounted) { - T(YAFFS_TRACE_ALWAYS, - (TSTR("yaffs: device already mounted\n" TENDSTR))); - return YAFFS_FAIL; -@@ -7189,59 +5197,62 @@ int yaffs_GutsInitialise(yaffs_Device *d - - /* Finished with most checks. One or two more checks happen later on too. */ - -- dev->isMounted = 1; -+ dev->is_mounted = 1; - - /* OK now calculate a few things for the device */ - - /* - * Calculate all the chunk size manipulation numbers: - */ -- x = dev->nDataBytesPerChunk; -- /* We always use dev->chunkShift and dev->chunkDiv */ -- dev->chunkShift = Shifts(x); -- x >>= dev->chunkShift; -- dev->chunkDiv = x; -- /* We only use chunk mask if chunkDiv is 1 */ -- dev->chunkMask = (1<chunkShift) - 1; -+ x = dev->data_bytes_per_chunk; -+ /* We always use dev->chunk_shift and dev->chunk_div */ -+ dev->chunk_shift = Shifts(x); -+ x >>= dev->chunk_shift; -+ dev->chunk_div = x; -+ /* We only use chunk mask if chunk_div is 1 */ -+ dev->chunk_mask = (1<chunk_shift) - 1; - - /* -- * Calculate chunkGroupBits. -- * We need to find the next power of 2 > than internalEndBlock -+ * Calculate chunk_grp_bits. -+ * We need to find the next power of 2 > than internal_end_block - */ - -- x = dev->nChunksPerBlock * (dev->internalEndBlock + 1); -+ x = dev->param.chunks_per_block * (dev->internal_end_block + 1); - - bits = ShiftsGE(x); - - /* Set up tnode width if wide tnodes are enabled. */ -- if (!dev->wideTnodesDisabled) { -+ if (!dev->param.wide_tnodes_disabled) { - /* bits must be even so that we end up with 32-bit words */ - if (bits & 1) - bits++; - if (bits < 16) -- dev->tnodeWidth = 16; -+ dev->tnode_width = 16; - else -- dev->tnodeWidth = bits; -+ dev->tnode_width = bits; - } else -- dev->tnodeWidth = 16; -+ dev->tnode_width = 16; - -- dev->tnodeMask = (1<tnodeWidth)-1; -+ dev->tnode_mask = (1<tnode_width)-1; - - /* Level0 Tnodes are 16 bits or wider (if wide tnodes are enabled), - * so if the bitwidth of the - * chunk range we're using is greater than 16 we need -- * to figure out chunk shift and chunkGroupSize -+ * to figure out chunk shift and chunk_grp_size - */ - -- if (bits <= dev->tnodeWidth) -- dev->chunkGroupBits = 0; -+ if (bits <= dev->tnode_width) -+ dev->chunk_grp_bits = 0; - else -- dev->chunkGroupBits = bits - dev->tnodeWidth; -+ dev->chunk_grp_bits = bits - dev->tnode_width; - -+ dev->tnode_size = (dev->tnode_width * YAFFS_NTNODES_LEVEL0)/8; -+ if(dev->tnode_size < sizeof(yaffs_tnode_t)) -+ dev->tnode_size = sizeof(yaffs_tnode_t); - -- dev->chunkGroupSize = 1 << dev->chunkGroupBits; -+ dev->chunk_grp_size = 1 << dev->chunk_grp_bits; - -- if (dev->nChunksPerBlock < dev->chunkGroupSize) { -+ if (dev->param.chunks_per_block < dev->chunk_grp_size) { - /* We have a problem because the soft delete won't work if - * the chunk group size > chunks per block. - * This can be remedied by using larger "virtual blocks". -@@ -7255,85 +5266,89 @@ int yaffs_GutsInitialise(yaffs_Device *d - /* OK, we've finished verifying the device, lets continue with initialisation */ - - /* More device initialisation */ -- dev->garbageCollections = 0; -- dev->passiveGarbageCollections = 0; -- dev->currentDirtyChecker = 0; -- dev->bufferedBlock = -1; -- dev->doingBufferedBlockRewrite = 0; -- dev->nDeletedFiles = 0; -- dev->nBackgroundDeletions = 0; -- dev->nUnlinkedFiles = 0; -- dev->eccFixed = 0; -- dev->eccUnfixed = 0; -- dev->tagsEccFixed = 0; -- dev->tagsEccUnfixed = 0; -- dev->nErasureFailures = 0; -- dev->nErasedBlocks = 0; -- dev->isDoingGC = 0; -- dev->hasPendingPrioritisedGCs = 1; /* Assume the worst for now, will get fixed on first GC */ -+ dev->all_gcs = 0; -+ dev->passive_gc_count = 0; -+ dev->oldest_dirty_gc_count = 0; -+ dev->bg_gcs = 0; -+ dev->gc_block_finder = 0; -+ dev->buffered_block = -1; -+ dev->doing_buffered_block_rewrite = 0; -+ dev->n_deleted_files = 0; -+ dev->n_bg_deletions = 0; -+ dev->n_unlinked_files = 0; -+ dev->n_ecc_fixed = 0; -+ dev->n_ecc_unfixed = 0; -+ dev->n_tags_ecc_fixed = 0; -+ dev->n_tags_ecc_unfixed = 0; -+ dev->n_erase_failures = 0; -+ dev->n_erased_blocks = 0; -+ dev->gc_disable= 0; -+ dev->has_pending_prioritised_gc = 1; /* Assume the worst for now, will get fixed on first GC */ -+ YINIT_LIST_HEAD(&dev->dirty_dirs); -+ dev->oldest_dirty_seq = 0; -+ dev->oldest_dirty_block = 0; - - /* Initialise temporary buffers and caches. */ -- if (!yaffs_InitialiseTempBuffers(dev)) -+ if (!yaffs_init_tmp_buffers(dev)) - init_failed = 1; - -- dev->srCache = NULL; -- dev->gcCleanupList = NULL; -+ dev->cache = NULL; -+ dev->gc_cleanup_list = NULL; - - - if (!init_failed && -- dev->nShortOpCaches > 0) { -+ dev->param.n_caches > 0) { - int i; - void *buf; -- int srCacheBytes = dev->nShortOpCaches * sizeof(yaffs_ChunkCache); -+ int cacheBytes = dev->param.n_caches * sizeof(yaffs_cache_t); - -- if (dev->nShortOpCaches > YAFFS_MAX_SHORT_OP_CACHES) -- dev->nShortOpCaches = YAFFS_MAX_SHORT_OP_CACHES; -+ if (dev->param.n_caches > YAFFS_MAX_SHORT_OP_CACHES) -+ dev->param.n_caches = YAFFS_MAX_SHORT_OP_CACHES; - -- dev->srCache = YMALLOC(srCacheBytes); -+ dev->cache = YMALLOC(cacheBytes); - -- buf = (__u8 *) dev->srCache; -+ buf = (__u8 *) dev->cache; - -- if (dev->srCache) -- memset(dev->srCache, 0, srCacheBytes); -+ if (dev->cache) -+ memset(dev->cache, 0, cacheBytes); - -- for (i = 0; i < dev->nShortOpCaches && buf; i++) { -- dev->srCache[i].object = NULL; -- dev->srCache[i].lastUse = 0; -- dev->srCache[i].dirty = 0; -- dev->srCache[i].data = buf = YMALLOC_DMA(dev->totalBytesPerChunk); -+ for (i = 0; i < dev->param.n_caches && buf; i++) { -+ dev->cache[i].object = NULL; -+ dev->cache[i].last_use = 0; -+ dev->cache[i].dirty = 0; -+ dev->cache[i].data = buf = YMALLOC_DMA(dev->param.total_bytes_per_chunk); - } - if (!buf) - init_failed = 1; - -- dev->srLastUse = 0; -+ dev->cache_last_use = 0; - } - -- dev->cacheHits = 0; -+ dev->cache_hits = 0; - - if (!init_failed) { -- dev->gcCleanupList = YMALLOC(dev->nChunksPerBlock * sizeof(__u32)); -- if (!dev->gcCleanupList) -+ dev->gc_cleanup_list = YMALLOC(dev->param.chunks_per_block * sizeof(__u32)); -+ if (!dev->gc_cleanup_list) - init_failed = 1; - } - -- if (dev->isYaffs2) -- dev->useHeaderFileSize = 1; -+ if (dev->param.is_yaffs2) -+ dev->param.use_header_file_size = 1; - -- if (!init_failed && !yaffs_InitialiseBlocks(dev)) -+ if (!init_failed && !yaffs_init_blocks(dev)) - init_failed = 1; - -- yaffs_InitialiseTnodes(dev); -- yaffs_InitialiseObjects(dev); -+ yaffs_init_tnodes_and_objs(dev); - -- if (!init_failed && !yaffs_CreateInitialDirectories(dev)) -+ if (!init_failed && !yaffs_create_initial_dir(dev)) - init_failed = 1; - - - if (!init_failed) { - /* Now scan the flash. */ -- if (dev->isYaffs2) { -- if (yaffs_CheckpointRestore(dev)) { -- yaffs_CheckObjectDetailsLoaded(dev->rootDir); -+ if (dev->param.is_yaffs2) { -+ if (yaffs2_checkpt_restore(dev)) { -+ yaffs_check_obj_details_loaded(dev->root_dir); - T(YAFFS_TRACE_ALWAYS, - (TSTR("yaffs: restored from checkpoint" TENDSTR))); - } else { -@@ -7341,128 +5356,129 @@ int yaffs_GutsInitialise(yaffs_Device *d - /* Clean up the mess caused by an aborted checkpoint load - * and scan backwards. - */ -- yaffs_DeinitialiseBlocks(dev); -- yaffs_DeinitialiseTnodes(dev); -- yaffs_DeinitialiseObjects(dev); -+ yaffs_deinit_blocks(dev); - -+ yaffs_deinit_tnodes_and_objs(dev); - -- dev->nErasedBlocks = 0; -- dev->nFreeChunks = 0; -- dev->allocationBlock = -1; -- dev->allocationPage = -1; -- dev->nDeletedFiles = 0; -- dev->nUnlinkedFiles = 0; -- dev->nBackgroundDeletions = 0; -- dev->oldestDirtySequence = 0; -+ dev->n_erased_blocks = 0; -+ dev->n_free_chunks = 0; -+ dev->alloc_block = -1; -+ dev->alloc_page = -1; -+ dev->n_deleted_files = 0; -+ dev->n_unlinked_files = 0; -+ dev->n_bg_deletions = 0; - -- if (!init_failed && !yaffs_InitialiseBlocks(dev)) -+ if (!init_failed && !yaffs_init_blocks(dev)) - init_failed = 1; - -- yaffs_InitialiseTnodes(dev); -- yaffs_InitialiseObjects(dev); -+ yaffs_init_tnodes_and_objs(dev); - -- if (!init_failed && !yaffs_CreateInitialDirectories(dev)) -+ if (!init_failed && !yaffs_create_initial_dir(dev)) - init_failed = 1; - -- if (!init_failed && !yaffs_ScanBackwards(dev)) -+ if (!init_failed && !yaffs2_scan_backwards(dev)) - init_failed = 1; - } -- } else if (!yaffs_Scan(dev)) -+ } else if (!yaffs1_scan(dev)) - init_failed = 1; - -- yaffs_StripDeletedObjects(dev); -+ yaffs_strip_deleted_objs(dev); -+ yaffs_fix_hanging_objs(dev); -+ if(dev->param.empty_lost_n_found) -+ yaffs_empty_l_n_f(dev); - } - - if (init_failed) { - /* Clean up the mess */ - T(YAFFS_TRACE_TRACING, -- (TSTR("yaffs: yaffs_GutsInitialise() aborted.\n" TENDSTR))); -+ (TSTR("yaffs: yaffs_guts_initialise() aborted.\n" TENDSTR))); - -- yaffs_Deinitialise(dev); -+ yaffs_deinitialise(dev); - return YAFFS_FAIL; - } - - /* Zero out stats */ -- dev->nPageReads = 0; -- dev->nPageWrites = 0; -- dev->nBlockErasures = 0; -- dev->nGCCopies = 0; -- dev->nRetriedWrites = 0; -- -- dev->nRetiredBlocks = 0; -- -- yaffs_VerifyFreeChunks(dev); -- yaffs_VerifyBlocks(dev); -- -+ dev->n_page_reads = 0; -+ dev->n_page_writes = 0; -+ dev->n_erasures = 0; -+ dev->n_gc_copies = 0; -+ dev->n_retired_writes = 0; -+ -+ dev->n_retired_blocks = 0; -+ -+ yaffs_verify_free_chunks(dev); -+ yaffs_verify_blocks(dev); -+ -+ /* Clean up any aborted checkpoint data */ -+ if(!dev->is_checkpointed && dev->blocks_in_checkpt > 0) -+ yaffs2_checkpt_invalidate(dev); - - T(YAFFS_TRACE_TRACING, -- (TSTR("yaffs: yaffs_GutsInitialise() done.\n" TENDSTR))); -+ (TSTR("yaffs: yaffs_guts_initialise() done.\n" TENDSTR))); - return YAFFS_OK; - - } - --void yaffs_Deinitialise(yaffs_Device *dev) -+void yaffs_deinitialise(yaffs_dev_t *dev) - { -- if (dev->isMounted) { -+ if (dev->is_mounted) { - int i; - -- yaffs_DeinitialiseBlocks(dev); -- yaffs_DeinitialiseTnodes(dev); -- yaffs_DeinitialiseObjects(dev); -- if (dev->nShortOpCaches > 0 && -- dev->srCache) { -+ yaffs_deinit_blocks(dev); -+ yaffs_deinit_tnodes_and_objs(dev); -+ if (dev->param.n_caches > 0 && -+ dev->cache) { - -- for (i = 0; i < dev->nShortOpCaches; i++) { -- if (dev->srCache[i].data) -- YFREE(dev->srCache[i].data); -- dev->srCache[i].data = NULL; -+ for (i = 0; i < dev->param.n_caches; i++) { -+ if (dev->cache[i].data) -+ YFREE(dev->cache[i].data); -+ dev->cache[i].data = NULL; - } - -- YFREE(dev->srCache); -- dev->srCache = NULL; -+ YFREE(dev->cache); -+ dev->cache = NULL; - } - -- YFREE(dev->gcCleanupList); -+ YFREE(dev->gc_cleanup_list); - - for (i = 0; i < YAFFS_N_TEMP_BUFFERS; i++) -- YFREE(dev->tempBuffer[i].buffer); -+ YFREE(dev->temp_buffer[i].buffer); - -- dev->isMounted = 0; -+ dev->is_mounted = 0; - -- if (dev->deinitialiseNAND) -- dev->deinitialiseNAND(dev); -+ if (dev->param.deinitialise_flash_fn) -+ dev->param.deinitialise_flash_fn(dev); - } - } - --static int yaffs_CountFreeChunks(yaffs_Device *dev) -+int yaffs_count_free_chunks(yaffs_dev_t *dev) - { -- int nFree; -+ int nFree=0; - int b; - -- yaffs_BlockInfo *blk; -- -- for (nFree = 0, b = dev->internalStartBlock; b <= dev->internalEndBlock; -- b++) { -- blk = yaffs_GetBlockInfo(dev, b); -+ yaffs_block_info_t *blk; - -- switch (blk->blockState) { -+ blk = dev->block_info; -+ for (b = dev->internal_start_block; b <= dev->internal_end_block; b++) { -+ switch (blk->block_state) { - case YAFFS_BLOCK_STATE_EMPTY: - case YAFFS_BLOCK_STATE_ALLOCATING: - case YAFFS_BLOCK_STATE_COLLECTING: - case YAFFS_BLOCK_STATE_FULL: - nFree += -- (dev->nChunksPerBlock - blk->pagesInUse + -- blk->softDeletions); -+ (dev->param.chunks_per_block - blk->pages_in_use + -+ blk->soft_del_pages); - break; - default: - break; - } -+ blk++; - } - - return nFree; - } - --int yaffs_GetNumberOfFreeChunks(yaffs_Device *dev) -+int yaffs_get_n_free_chunks(yaffs_dev_t *dev) - { - /* This is what we report to the outside world */ - -@@ -7472,30 +5488,28 @@ int yaffs_GetNumberOfFreeChunks(yaffs_De - int i; - - #if 1 -- nFree = dev->nFreeChunks; -+ nFree = dev->n_free_chunks; - #else -- nFree = yaffs_CountFreeChunks(dev); -+ nFree = yaffs_count_free_chunks(dev); - #endif - -- nFree += dev->nDeletedFiles; -+ nFree += dev->n_deleted_files; - - /* Now count the number of dirty chunks in the cache and subtract those */ - -- for (nDirtyCacheChunks = 0, i = 0; i < dev->nShortOpCaches; i++) { -- if (dev->srCache[i].dirty) -+ for (nDirtyCacheChunks = 0, i = 0; i < dev->param.n_caches; i++) { -+ if (dev->cache[i].dirty) - nDirtyCacheChunks++; - } - - nFree -= nDirtyCacheChunks; - -- nFree -= ((dev->nReservedBlocks + 1) * dev->nChunksPerBlock); -+ nFree -= ((dev->param.n_reserved_blocks + 1) * dev->param.chunks_per_block); - - /* Now we figure out how much to reserve for the checkpoint and report that... */ -- blocksForCheckpoint = yaffs_CalcCheckpointBlocksRequired(dev) - dev->blocksInCheckpoint; -- if (blocksForCheckpoint < 0) -- blocksForCheckpoint = 0; -+ blocksForCheckpoint = yaffs_calc_checkpt_blocks_required(dev); - -- nFree -= (blocksForCheckpoint * dev->nChunksPerBlock); -+ nFree -= (blocksForCheckpoint * dev->param.chunks_per_block); - - if (nFree < 0) - nFree = 0; -@@ -7504,49 +5518,27 @@ int yaffs_GetNumberOfFreeChunks(yaffs_De - - } - --static int yaffs_freeVerificationFailures; -- --static void yaffs_VerifyFreeChunks(yaffs_Device *dev) --{ -- int counted; -- int difference; -- -- if (yaffs_SkipVerification(dev)) -- return; -- -- counted = yaffs_CountFreeChunks(dev); -- -- difference = dev->nFreeChunks - counted; -- -- if (difference) { -- T(YAFFS_TRACE_ALWAYS, -- (TSTR("Freechunks verification failure %d %d %d" TENDSTR), -- dev->nFreeChunks, counted, difference)); -- yaffs_freeVerificationFailures++; -- } --} - - /*---------------------------------------- YAFFS test code ----------------------*/ - --#define yaffs_CheckStruct(structure, syze, name) \ -+#define yaffs_check_struct(structure, syze, name) \ - do { \ - if (sizeof(structure) != syze) { \ - T(YAFFS_TRACE_ALWAYS, (TSTR("%s should be %d but is %d\n" TENDSTR),\ -- name, syze, sizeof(structure))); \ -+ name, syze, (int) sizeof(structure))); \ - return YAFFS_FAIL; \ - } \ - } while (0) - --static int yaffs_CheckStructures(void) -+static int yaffs_check_structures(void) - { --/* yaffs_CheckStruct(yaffs_Tags,8,"yaffs_Tags"); */ --/* yaffs_CheckStruct(yaffs_TagsUnion,8,"yaffs_TagsUnion"); */ --/* yaffs_CheckStruct(yaffs_Spare,16,"yaffs_Spare"); */ --#ifndef CONFIG_YAFFS_TNODE_LIST_DEBUG -- yaffs_CheckStruct(yaffs_Tnode, 2 * YAFFS_NTNODES_LEVEL0, "yaffs_Tnode"); --#endif -+/* yaffs_check_struct(yaffs_tags_t,8,"yaffs_tags_t"); */ -+/* yaffs_check_struct(yaffs_tags_union_t,8,"yaffs_tags_union_t"); */ -+/* yaffs_check_struct(yaffs_spare,16,"yaffs_spare"); */ -+/* yaffs_check_struct(yaffs_tnode_t, 2 * YAFFS_NTNODES_LEVEL0, "yaffs_tnode_t"); */ -+ - #ifndef CONFIG_YAFFS_WINCE -- yaffs_CheckStruct(yaffs_ObjectHeader, 512, "yaffs_ObjectHeader"); -+ yaffs_check_struct(yaffs_obj_header, 512, "yaffs_obj_header"); - #endif - return YAFFS_OK; - } ---- a/fs/yaffs2/yaffs_guts.h -+++ b/fs/yaffs2/yaffs_guts.h -@@ -1,7 +1,7 @@ - /* - * YAFFS: Yet another Flash File System . A NAND-flash specific file system. - * -- * Copyright (C) 2002-2007 Aleph One Ltd. -+ * Copyright (C) 2002-2010 Aleph One Ltd. - * for Toby Churchill Ltd and Brightstar Engineering - * - * Created by Charles Manning -@@ -16,8 +16,9 @@ - #ifndef __YAFFS_GUTS_H__ - #define __YAFFS_GUTS_H__ - --#include "devextras.h" - #include "yportenv.h" -+#include "devextras.h" -+#include "yaffs_list.h" - - #define YAFFS_OK 1 - #define YAFFS_FAIL 0 -@@ -52,7 +53,6 @@ - - #define YAFFS_MAX_CHUNK_ID 0x000FFFFF - --#define YAFFS_UNUSED_OBJECT_ID 0x0003FFFF - - #define YAFFS_ALLOCATION_NOBJECTS 100 - #define YAFFS_ALLOCATION_NTNODES 100 -@@ -62,8 +62,9 @@ - - - #define YAFFS_OBJECT_SPACE 0x40000 -+#define YAFFS_MAX_OBJECT_ID (YAFFS_OBJECT_SPACE -1) - --#define YAFFS_CHECKPOINT_VERSION 3 -+#define YAFFS_CHECKPOINT_VERSION 4 - - #ifdef CONFIG_YAFFS_UNICODE - #define YAFFS_MAX_NAME_LENGTH 127 -@@ -81,12 +82,11 @@ - #define YAFFS_OBJECTID_UNLINKED 3 - #define YAFFS_OBJECTID_DELETED 4 - --/* Sseudo object ids for checkpointing */ -+/* Pseudo object ids for checkpointing */ - #define YAFFS_OBJECTID_SB_HEADER 0x10 - #define YAFFS_OBJECTID_CHECKPOINT_DATA 0x20 - #define YAFFS_SEQUENCE_CHECKPOINT_DATA 0x21 - --/* */ - - #define YAFFS_MAX_SHORT_OP_CACHES 20 - -@@ -113,18 +113,14 @@ - - /* ChunkCache is used for short read/write operations.*/ - typedef struct { -- struct yaffs_ObjectStruct *object; -- int chunkId; -- int lastUse; -+ struct yaffs_obj_s *object; -+ int chunk_id; -+ int last_use; - int dirty; -- int nBytes; /* Only valid if the cache is dirty */ -+ int n_bytes; /* Only valid if the cache is dirty */ - int locked; /* Can't push out or flush while locked. */ --#ifdef CONFIG_YAFFS_YAFFS2 - __u8 *data; --#else -- __u8 data[YAFFS_BYTES_PER_CHUNK]; --#endif --} yaffs_ChunkCache; -+} yaffs_cache_t; - - - -@@ -135,18 +131,18 @@ typedef struct { - - #ifndef CONFIG_YAFFS_NO_YAFFS1 - typedef struct { -- unsigned chunkId:20; -- unsigned serialNumber:2; -- unsigned byteCountLSB:10; -- unsigned objectId:18; -+ unsigned chunk_id:20; -+ unsigned serial_number:2; -+ unsigned n_bytes_lsb:10; -+ unsigned obj_id:18; - unsigned ecc:12; -- unsigned byteCountMSB:2; --} yaffs_Tags; -+ unsigned n_bytes_msb:2; -+} yaffs_tags_t; - - typedef union { -- yaffs_Tags asTags; -- __u8 asBytes[8]; --} yaffs_TagsUnion; -+ yaffs_tags_t as_tags; -+ __u8 as_bytes[8]; -+} yaffs_tags_union_t; - - #endif - -@@ -157,7 +153,7 @@ typedef enum { - YAFFS_ECC_RESULT_NO_ERROR, - YAFFS_ECC_RESULT_FIXED, - YAFFS_ECC_RESULT_UNFIXED --} yaffs_ECCResult; -+} yaffs_ecc_result; - - typedef enum { - YAFFS_OBJECT_TYPE_UNKNOWN, -@@ -166,64 +162,64 @@ typedef enum { - YAFFS_OBJECT_TYPE_DIRECTORY, - YAFFS_OBJECT_TYPE_HARDLINK, - YAFFS_OBJECT_TYPE_SPECIAL --} yaffs_ObjectType; -+} yaffs_obj_type; - - #define YAFFS_OBJECT_TYPE_MAX YAFFS_OBJECT_TYPE_SPECIAL - - typedef struct { - -- unsigned validMarker0; -- unsigned chunkUsed; /* Status of the chunk: used or unused */ -- unsigned objectId; /* If 0 then this is not part of an object (unused) */ -- unsigned chunkId; /* If 0 then this is a header, else a data chunk */ -- unsigned byteCount; /* Only valid for data chunks */ -+ unsigned validity1; -+ unsigned chunk_used; /* Status of the chunk: used or unused */ -+ unsigned obj_id; /* If 0 then this is not part of an object (unused) */ -+ unsigned chunk_id; /* If 0 then this is a header, else a data chunk */ -+ unsigned n_bytes; /* Only valid for data chunks */ - - /* The following stuff only has meaning when we read */ -- yaffs_ECCResult eccResult; -- unsigned blockBad; -+ yaffs_ecc_result ecc_result; -+ unsigned block_bad; - - /* YAFFS 1 stuff */ -- unsigned chunkDeleted; /* The chunk is marked deleted */ -- unsigned serialNumber; /* Yaffs1 2-bit serial number */ -+ unsigned is_deleted; /* The chunk is marked deleted */ -+ unsigned serial_number; /* Yaffs1 2-bit serial number */ - - /* YAFFS2 stuff */ -- unsigned sequenceNumber; /* The sequence number of this block */ -+ unsigned seq_number; /* The sequence number of this block */ - - /* Extra info if this is an object header (YAFFS2 only) */ - -- unsigned extraHeaderInfoAvailable; /* There is extra info available if this is not zero */ -- unsigned extraParentObjectId; /* The parent object */ -- unsigned extraIsShrinkHeader; /* Is it a shrink header? */ -- unsigned extraShadows; /* Does this shadow another object? */ -+ unsigned extra_available; /* There is extra info available if this is not zero */ -+ unsigned extra_parent_id; /* The parent object */ -+ unsigned extra_is_shrink; /* Is it a shrink header? */ -+ unsigned extra_shadows; /* Does this shadow another object? */ - -- yaffs_ObjectType extraObjectType; /* What object type? */ -+ yaffs_obj_type extra_obj_type; /* What object type? */ - -- unsigned extraFileLength; /* Length if it is a file */ -- unsigned extraEquivalentObjectId; /* Equivalent object Id if it is a hard link */ -+ unsigned extra_length; /* Length if it is a file */ -+ unsigned extra_equiv_id; /* Equivalent object Id if it is a hard link */ - -- unsigned validMarker1; -+ unsigned validty1; - --} yaffs_ExtendedTags; -+} yaffs_ext_tags; - - /* Spare structure for YAFFS1 */ - typedef struct { -- __u8 tagByte0; -- __u8 tagByte1; -- __u8 tagByte2; -- __u8 tagByte3; -- __u8 pageStatus; /* set to 0 to delete the chunk */ -- __u8 blockStatus; -- __u8 tagByte4; -- __u8 tagByte5; -+ __u8 tb0; -+ __u8 tb1; -+ __u8 tb2; -+ __u8 tb3; -+ __u8 page_status; /* set to 0 to delete the chunk */ -+ __u8 block_status; -+ __u8 tb4; -+ __u8 tb5; - __u8 ecc1[3]; -- __u8 tagByte6; -- __u8 tagByte7; -+ __u8 tb6; -+ __u8 tb7; - __u8 ecc2[3]; --} yaffs_Spare; -+} yaffs_spare; - - /*Special structure for passing through to mtd */ --struct yaffs_NANDSpare { -- yaffs_Spare spare; -+struct yaffs_nand_spare { -+ yaffs_spare spare; - int eccres1; - int eccres2; - }; -@@ -234,6 +230,8 @@ typedef enum { - YAFFS_BLOCK_STATE_UNKNOWN = 0, - - YAFFS_BLOCK_STATE_SCANNING, -+ /* Being scanned */ -+ - YAFFS_BLOCK_STATE_NEEDS_SCANNING, - /* The block might have something on it (ie it is allocating or full, perhaps empty) - * but it needs to be scanned to determine its true state. -@@ -249,67 +247,69 @@ typedef enum { - /* This block is partially allocated. - * At least one page holds valid data. - * This is the one currently being used for page -- * allocation. Should never be more than one of these -+ * allocation. Should never be more than one of these. -+ * If a block is only partially allocated at mount it is treated as full. - */ - - YAFFS_BLOCK_STATE_FULL, - /* All the pages in this block have been allocated. -+ * If a block was only partially allocated when mounted we treat -+ * it as fully allocated. - */ - - YAFFS_BLOCK_STATE_DIRTY, -- /* All pages have been allocated and deleted. -+ /* The block was full and now all chunks have been deleted. - * Erase me, reuse me. - */ - - YAFFS_BLOCK_STATE_CHECKPOINT, -- /* This block is assigned to holding checkpoint data. -- */ -+ /* This block is assigned to holding checkpoint data. */ - - YAFFS_BLOCK_STATE_COLLECTING, - /* This block is being garbage collected */ - - YAFFS_BLOCK_STATE_DEAD - /* This block has failed and is not in use */ --} yaffs_BlockState; -+} yaffs_block_state_t; - - #define YAFFS_NUMBER_OF_BLOCK_STATES (YAFFS_BLOCK_STATE_DEAD + 1) - - - typedef struct { - -- int softDeletions:10; /* number of soft deleted pages */ -- int pagesInUse:10; /* number of pages in use */ -- unsigned blockState:4; /* One of the above block states. NB use unsigned because enum is sometimes an int */ -- __u32 needsRetiring:1; /* Data has failed on this block, need to get valid data off */ -+ int soft_del_pages:10; /* number of soft deleted pages */ -+ int pages_in_use:10; /* number of pages in use */ -+ unsigned block_state:4; /* One of the above block states. NB use unsigned because enum is sometimes an int */ -+ __u32 needs_retiring:1; /* Data has failed on this block, need to get valid data off */ - /* and retire the block. */ -- __u32 skipErasedCheck:1; /* If this is set we can skip the erased check on this block */ -- __u32 gcPrioritise:1; /* An ECC check or blank check has failed on this block. -+ __u32 skip_erased_check:1; /* If this is set we can skip the erased check on this block */ -+ __u32 gc_prioritise:1; /* An ECC check or blank check has failed on this block. - It should be prioritised for GC */ -- __u32 chunkErrorStrikes:3; /* How many times we've had ecc etc failures on this block and tried to reuse it */ -+ __u32 chunk_error_strikes:3; /* How many times we've had ecc etc failures on this block and tried to reuse it */ - - #ifdef CONFIG_YAFFS_YAFFS2 -- __u32 hasShrinkHeader:1; /* This block has at least one shrink object header */ -- __u32 sequenceNumber; /* block sequence number for yaffs2 */ -+ __u32 has_shrink_hdr:1; /* This block has at least one shrink object header */ -+ __u32 seq_number; /* block sequence number for yaffs2 */ - #endif - --} yaffs_BlockInfo; -+} yaffs_block_info_t; - - /* -------------------------- Object structure -------------------------------*/ - /* This is the object structure as stored on NAND */ - - typedef struct { -- yaffs_ObjectType type; -+ yaffs_obj_type type; - - /* Apply to everything */ -- int parentObjectId; -- __u16 sum__NoLongerUsed; /* checksum of name. No longer used */ -+ int parent_obj_id; -+ __u16 sum_no_longer_used; /* checksum of name. No longer used */ - YCHAR name[YAFFS_MAX_NAME_LENGTH + 1]; - - /* The following apply to directories, files, symlinks - not hard links */ - __u32 yst_mode; /* protection */ - - #ifdef CONFIG_YAFFS_WINCE -- __u32 notForWinCE[5]; -+ __u32 not_for_wince[5]; - #else - __u32 yst_uid; - __u32 yst_gid; -@@ -319,10 +319,10 @@ typedef struct { - #endif - - /* File size applies to files only */ -- int fileSize; -+ int file_size; - - /* Equivalent object id applies to hard links only. */ -- int equivalentObjectId; -+ int equiv_id; - - /* Alias is for symlinks only. */ - YCHAR alias[YAFFS_MAX_ALIAS_LENGTH + 1]; -@@ -334,40 +334,29 @@ typedef struct { - __u32 win_atime[2]; - __u32 win_mtime[2]; - #else -- __u32 roomToGrow[6]; -+ __u32 room_to_grow[6]; - - #endif -- __u32 inbandShadowsObject; -- __u32 inbandIsShrink; -+ __u32 inband_shadowed_obj_id; -+ __u32 inband_is_shrink; - -- __u32 reservedSpace[2]; -- int shadowsObject; /* This object header shadows the specified object if > 0 */ -+ __u32 reserved[2]; -+ int shadows_obj; /* This object header shadows the specified object if > 0 */ - -- /* isShrink applies to object headers written when we shrink the file (ie resize) */ -- __u32 isShrink; -+ /* is_shrink applies to object headers written when we shrink the file (ie resize) */ -+ __u32 is_shrink; - --} yaffs_ObjectHeader; -+} yaffs_obj_header; - - /*--------------------------- Tnode -------------------------- */ - --union yaffs_Tnode_union { --#ifdef CONFIG_YAFFS_TNODE_LIST_DEBUG -- union yaffs_Tnode_union *internal[YAFFS_NTNODES_INTERNAL + 1]; --#else -- union yaffs_Tnode_union *internal[YAFFS_NTNODES_INTERNAL]; --#endif --/* __u16 level0[YAFFS_NTNODES_LEVEL0]; */ -+union yaffs_tnode_union { -+ union yaffs_tnode_union *internal[YAFFS_NTNODES_INTERNAL]; - - }; - --typedef union yaffs_Tnode_union yaffs_Tnode; -+typedef union yaffs_tnode_union yaffs_tnode_t; - --struct yaffs_TnodeList_struct { -- struct yaffs_TnodeList_struct *next; -- yaffs_Tnode *tnodes; --}; -- --typedef struct yaffs_TnodeList_struct yaffs_TnodeList; - - /*------------------------ Object -----------------------------*/ - /* An object can be one of: -@@ -378,82 +367,85 @@ typedef struct yaffs_TnodeList_struct ya - */ - - typedef struct { -- __u32 fileSize; -- __u32 scannedFileSize; -- __u32 shrinkSize; -- int topLevel; -- yaffs_Tnode *top; --} yaffs_FileStructure; -+ __u32 file_size; -+ __u32 scanned_size; -+ __u32 shrink_size; -+ int top_level; -+ yaffs_tnode_t *top; -+} yaffs_file_s; - - typedef struct { - struct ylist_head children; /* list of child links */ --} yaffs_DirectoryStructure; -+ struct ylist_head dirty; /* Entry for list of dirty directories */ -+} yaffs_dir_s; - - typedef struct { - YCHAR *alias; --} yaffs_SymLinkStructure; -+} yaffs_symlink_t; - - typedef struct { -- struct yaffs_ObjectStruct *equivalentObject; -- __u32 equivalentObjectId; --} yaffs_HardLinkStructure; -+ struct yaffs_obj_s *equiv_obj; -+ __u32 equiv_id; -+} yaffs_hard_link_s; - - typedef union { -- yaffs_FileStructure fileVariant; -- yaffs_DirectoryStructure directoryVariant; -- yaffs_SymLinkStructure symLinkVariant; -- yaffs_HardLinkStructure hardLinkVariant; --} yaffs_ObjectVariant; -+ yaffs_file_s file_variant; -+ yaffs_dir_s dir_variant; -+ yaffs_symlink_t symlink_variant; -+ yaffs_hard_link_s hardlink_variant; -+} yaffs_obj_variant; -+ -+ - --struct yaffs_ObjectStruct { -+struct yaffs_obj_s { - __u8 deleted:1; /* This should only apply to unlinked files. */ -- __u8 softDeleted:1; /* it has also been soft deleted */ -+ __u8 soft_del:1; /* it has also been soft deleted */ - __u8 unlinked:1; /* An unlinked file. The file should be in the unlinked directory.*/ - __u8 fake:1; /* A fake object has no presence on NAND. */ -- __u8 renameAllowed:1; /* Some objects are not allowed to be renamed. */ -- __u8 unlinkAllowed:1; -+ __u8 rename_allowed:1; /* Some objects are not allowed to be renamed. */ -+ __u8 unlink_allowed:1; - __u8 dirty:1; /* the object needs to be written to flash */ - __u8 valid:1; /* When the file system is being loaded up, this - * object might be created before the data - * is available (ie. file data records appear before the header). - */ -- __u8 lazyLoaded:1; /* This object has been lazy loaded and is missing some detail */ -+ __u8 lazy_loaded:1; /* This object has been lazy loaded and is missing some detail */ - -- __u8 deferedFree:1; /* For Linux kernel. Object is removed from NAND, but is -+ __u8 defered_free:1; /* For Linux kernel. Object is removed from NAND, but is - * still in the inode cache. Free of object is defered. - * until the inode is released. - */ -- __u8 beingCreated:1; /* This object is still being created so skip some checks. */ -+ __u8 being_created:1; /* This object is still being created so skip some checks. */ -+ __u8 is_shadowed:1; /* This object is shadowed on the way to being renamed. */ -+ -+ __u8 xattr_known:1; /* We know if this has object has xattribs or not. */ -+ __u8 has_xattr:1; /* This object has xattribs. Valid if xattr_known. */ - - __u8 serial; /* serial number of chunk in NAND. Cached here */ - __u16 sum; /* sum of the name to speed searching */ - -- struct yaffs_DeviceStruct *myDev; /* The device I'm on */ -+ struct yaffs_dev_s *my_dev; /* The device I'm on */ - -- struct ylist_head hashLink; /* list of objects in this hash bucket */ -+ struct ylist_head hash_link; /* list of objects in this hash bucket */ - -- struct ylist_head hardLinks; /* all the equivalent hard linked objects */ -+ struct ylist_head hard_links; /* all the equivalent hard linked objects */ - - /* directory structure stuff */ - /* also used for linking up the free list */ -- struct yaffs_ObjectStruct *parent; -+ struct yaffs_obj_s *parent; - struct ylist_head siblings; - - /* Where's my object header in NAND? */ -- int hdrChunk; -+ int hdr_chunk; - -- int nDataChunks; /* Number of data chunks attached to the file. */ -+ int n_data_chunks; /* Number of data chunks attached to the file. */ - -- __u32 objectId; /* the object id value */ -+ __u32 obj_id; /* the object id value */ - - __u32 yst_mode; - - #ifdef CONFIG_YAFFS_SHORT_NAMES_IN_RAM -- YCHAR shortName[YAFFS_SHORT_NAME_LENGTH + 1]; --#endif -- --#ifndef __KERNEL__ -- __u32 inUse; -+ YCHAR short_name[YAFFS_SHORT_NAME_LENGTH + 1]; - #endif - - #ifdef CONFIG_YAFFS_WINCE -@@ -470,53 +462,43 @@ struct yaffs_ObjectStruct { - - __u32 yst_rdev; - --#ifdef __KERNEL__ -- struct inode *myInode; -+ void *my_inode; - --#endif -+ yaffs_obj_type variant_type; - -- yaffs_ObjectType variantType; -+ yaffs_obj_variant variant; - -- yaffs_ObjectVariant variant; -- --}; -- --typedef struct yaffs_ObjectStruct yaffs_Object; -- --struct yaffs_ObjectList_struct { -- yaffs_Object *objects; -- struct yaffs_ObjectList_struct *next; - }; - --typedef struct yaffs_ObjectList_struct yaffs_ObjectList; -+typedef struct yaffs_obj_s yaffs_obj_t; - - typedef struct { - struct ylist_head list; - int count; --} yaffs_ObjectBucket; -+} yaffs_obj_bucket; - - --/* yaffs_CheckpointObject holds the definition of an object as dumped -+/* yaffs_checkpt_obj_t holds the definition of an object as dumped - * by checkpointing. - */ - - typedef struct { -- int structType; -- __u32 objectId; -- __u32 parentId; -- int hdrChunk; -- yaffs_ObjectType variantType:3; -+ int struct_type; -+ __u32 obj_id; -+ __u32 parent_id; -+ int hdr_chunk; -+ yaffs_obj_type variant_type:3; - __u8 deleted:1; -- __u8 softDeleted:1; -+ __u8 soft_del:1; - __u8 unlinked:1; - __u8 fake:1; -- __u8 renameAllowed:1; -- __u8 unlinkAllowed:1; -+ __u8 rename_allowed:1; -+ __u8 unlink_allowed:1; - __u8 serial; - -- int nDataChunks; -- __u32 fileSizeOrEquivalentObjectId; --} yaffs_CheckpointObject; -+ int n_data_chunks; -+ __u32 size_or_equiv_obj; -+} yaffs_checkpt_obj_t; - - /*--------------------- Temporary buffers ---------------- - * -@@ -526,379 +508,462 @@ typedef struct { - typedef struct { - __u8 *buffer; - int line; /* track from whence this buffer was allocated */ -- int maxLine; --} yaffs_TempBuffer; -+ int max_line; -+} yaffs_buffer_t; - - /*----------------- Device ---------------------------------*/ - --struct yaffs_DeviceStruct { -- struct ylist_head devList; -- const char *name; -- -- /* Entry parameters set up way early. Yaffs sets up the rest.*/ -- int nDataBytesPerChunk; /* Should be a power of 2 >= 512 */ -- int nChunksPerBlock; /* does not need to be a power of 2 */ -- int spareBytesPerChunk; /* spare area size */ -- int startBlock; /* Start block we're allowed to use */ -- int endBlock; /* End block we're allowed to use */ -- int nReservedBlocks; /* We want this tuneable so that we can reduce */ -- /* reserved blocks on NOR and RAM. */ -- - -- /* Stuff used by the shared space checkpointing mechanism */ -- /* If this value is zero, then this mechanism is disabled */ -+struct yaffs_param_s { -+ const YCHAR *name; - --/* int nCheckpointReservedBlocks; */ /* Blocks to reserve for checkpoint data */ -+ /* -+ * Entry parameters set up way early. Yaffs sets up the rest. -+ * The structure should be zeroed out before use so that unused -+ * and defualt values are zero. -+ */ -+ -+ int inband_tags; /* Use unband tags */ -+ __u32 total_bytes_per_chunk; /* Should be >= 512, does not need to be a power of 2 */ -+ int chunks_per_block; /* does not need to be a power of 2 */ -+ int spare_bytes_per_chunk; /* spare area size */ -+ int start_block; /* Start block we're allowed to use */ -+ int end_block; /* End block we're allowed to use */ -+ int n_reserved_blocks; /* We want this tuneable so that we can reduce */ -+ /* reserved blocks on NOR and RAM. */ - - -- int nShortOpCaches; /* If <= 0, then short op caching is disabled, else -- * the number of short op caches (don't use too many) -+ int n_caches; /* If <= 0, then short op caching is disabled, else -+ * the number of short op caches (don't use too many). -+ * 10 to 20 is a good bet. - */ -+ int use_nand_ecc; /* Flag to decide whether or not to use NANDECC on data (yaffs1) */ -+ int no_tags_ecc; /* Flag to decide whether or not to do ECC on packed tags (yaffs2) */ - -- int useHeaderFileSize; /* Flag to determine if we should use file sizes from the header */ -+ int is_yaffs2; /* Use yaffs2 mode on this device */ - -- int useNANDECC; /* Flag to decide whether or not to use NANDECC */ -+ int empty_lost_n_found; /* Auto-empty lost+found directory on mount */ - -- void *genericDevice; /* Pointer to device context -- * On an mtd this holds the mtd pointer. -- */ -- void *superBlock; -+ int refresh_period; /* How often we should check to do a block refresh */ -+ -+ /* Checkpoint control. Can be set before or after initialisation */ -+ __u8 skip_checkpt_rd; -+ __u8 skip_checkpt_wr; -+ -+ int enable_xattr; /* Enable xattribs */ - - /* NAND access functions (Must be set before calling YAFFS)*/ - -- int (*writeChunkToNAND) (struct yaffs_DeviceStruct *dev, -- int chunkInNAND, const __u8 *data, -- const yaffs_Spare *spare); -- int (*readChunkFromNAND) (struct yaffs_DeviceStruct *dev, -- int chunkInNAND, __u8 *data, -- yaffs_Spare *spare); -- int (*eraseBlockInNAND) (struct yaffs_DeviceStruct *dev, -- int blockInNAND); -- int (*initialiseNAND) (struct yaffs_DeviceStruct *dev); -- int (*deinitialiseNAND) (struct yaffs_DeviceStruct *dev); -+ int (*write_chunk_fn) (struct yaffs_dev_s *dev, -+ int nand_chunk, const __u8 *data, -+ const yaffs_spare *spare); -+ int (*read_chunk_fn) (struct yaffs_dev_s *dev, -+ int nand_chunk, __u8 *data, -+ yaffs_spare *spare); -+ int (*erase_fn) (struct yaffs_dev_s *dev, -+ int flash_block); -+ int (*initialise_flash_fn) (struct yaffs_dev_s *dev); -+ int (*deinitialise_flash_fn) (struct yaffs_dev_s *dev); - - #ifdef CONFIG_YAFFS_YAFFS2 -- int (*writeChunkWithTagsToNAND) (struct yaffs_DeviceStruct *dev, -- int chunkInNAND, const __u8 *data, -- const yaffs_ExtendedTags *tags); -- int (*readChunkWithTagsFromNAND) (struct yaffs_DeviceStruct *dev, -- int chunkInNAND, __u8 *data, -- yaffs_ExtendedTags *tags); -- int (*markNANDBlockBad) (struct yaffs_DeviceStruct *dev, int blockNo); -- int (*queryNANDBlock) (struct yaffs_DeviceStruct *dev, int blockNo, -- yaffs_BlockState *state, __u32 *sequenceNumber); --#endif -- -- int isYaffs2; -- -- /* The removeObjectCallback function must be supplied by OS flavours that -- * need it. The Linux kernel does not use this, but yaffs direct does use -- * it to implement the faster readdir -+ int (*write_chunk_tags_fn) (struct yaffs_dev_s *dev, -+ int nand_chunk, const __u8 *data, -+ const yaffs_ext_tags *tags); -+ int (*read_chunk_tags_fn) (struct yaffs_dev_s *dev, -+ int nand_chunk, __u8 *data, -+ yaffs_ext_tags *tags); -+ int (*bad_block_fn) (struct yaffs_dev_s *dev, int block_no); -+ int (*query_block_fn) (struct yaffs_dev_s *dev, int block_no, -+ yaffs_block_state_t *state, __u32 *seq_number); -+#endif -+ -+ /* The remove_obj_fn function must be supplied by OS flavours that -+ * need it. -+ * yaffs direct uses it to implement the faster readdir. -+ * Linux uses it to protect the directory during unlocking. - */ -- void (*removeObjectCallback)(struct yaffs_ObjectStruct *obj); -+ void (*remove_obj_fn)(struct yaffs_obj_s *obj); - -- /* Callback to mark the superblock dirsty */ -- void (*markSuperBlockDirty)(void *superblock); -+ /* Callback to mark the superblock dirty */ -+ void (*sb_dirty_fn)(struct yaffs_dev_s *dev); -+ -+ /* Callback to control garbage collection. */ -+ unsigned (*gc_control)(struct yaffs_dev_s *dev); -+ -+ /* Debug control flags. Don't use unless you know what you're doing */ -+ int use_header_file_size; /* Flag to determine if we should use file sizes from the header */ -+ int disable_lazy_load; /* Disable lazy loading on this device */ -+ int wide_tnodes_disabled; /* Set to disable wide tnodes */ -+ int disable_soft_del; /* yaffs 1 only: Set to disable the use of softdeletion. */ -+ -+ int defered_dir_update; /* Set to defer directory updates */ - -- int wideTnodesDisabled; /* Set to disable wide tnodes */ -+#ifdef CONFIG_YAFFS_AUTO_UNICODE -+ int auto_unicode; -+#endif -+ int always_check_erased; /* Force chunk erased check always on */ -+}; - -- YCHAR *pathDividers; /* String of legal path dividers */ -+typedef struct yaffs_param_s yaffs_param_t; - -+struct yaffs_dev_s { -+ struct yaffs_param_s param; - -- /* End of stuff that must be set before initialisation. */ -+ /* Context storage. Holds extra OS specific data for this device */ - -- /* Checkpoint control. Can be set before or after initialisation */ -- __u8 skipCheckpointRead; -- __u8 skipCheckpointWrite; -+ void *os_context; -+ void *driver_context; -+ -+ struct ylist_head dev_list; - - /* Runtime parameters. Set up by YAFFS. */ -+ int data_bytes_per_chunk; - -- __u16 chunkGroupBits; /* 0 for devices <= 32MB. else log2(nchunks) - 16 */ -- __u16 chunkGroupSize; /* == 2^^chunkGroupBits */ -+ /* Non-wide tnode stuff */ -+ __u16 chunk_grp_bits; /* Number of bits that need to be resolved if -+ * the tnodes are not wide enough. -+ */ -+ __u16 chunk_grp_size; /* == 2^^chunk_grp_bits */ - - /* Stuff to support wide tnodes */ -- __u32 tnodeWidth; -- __u32 tnodeMask; -+ __u32 tnode_width; -+ __u32 tnode_mask; -+ __u32 tnode_size; - - /* Stuff for figuring out file offset to chunk conversions */ -- __u32 chunkShift; /* Shift value */ -- __u32 chunkDiv; /* Divisor after shifting: 1 for power-of-2 sizes */ -- __u32 chunkMask; /* Mask to use for power-of-2 case */ -- -- /* Stuff to handle inband tags */ -- int inbandTags; -- __u32 totalBytesPerChunk; -- --#ifdef __KERNEL__ -- -- struct semaphore sem; /* Semaphore for waiting on erasure.*/ -- struct semaphore grossLock; /* Gross locking semaphore */ -- __u8 *spareBuffer; /* For mtdif2 use. Don't know the size of the buffer -- * at compile time so we have to allocate it. -- */ -- void (*putSuperFunc) (struct super_block *sb); --#endif -+ __u32 chunk_shift; /* Shift value */ -+ __u32 chunk_div; /* Divisor after shifting: 1 for power-of-2 sizes */ -+ __u32 chunk_mask; /* Mask to use for power-of-2 case */ - -- int isMounted; - -- int isCheckpointed; -+ -+ int is_mounted; -+ int read_only; -+ int is_checkpointed; - - - /* Stuff to support block offsetting to support start block zero */ -- int internalStartBlock; -- int internalEndBlock; -- int blockOffset; -- int chunkOffset; -+ int internal_start_block; -+ int internal_end_block; -+ int block_offset; -+ int chunk_offset; - - - /* Runtime checkpointing stuff */ -- int checkpointPageSequence; /* running sequence number of checkpoint pages */ -- int checkpointByteCount; -- int checkpointByteOffset; -- __u8 *checkpointBuffer; -- int checkpointOpenForWrite; -- int blocksInCheckpoint; -- int checkpointCurrentChunk; -- int checkpointCurrentBlock; -- int checkpointNextBlock; -- int *checkpointBlockList; -- int checkpointMaxBlocks; -- __u32 checkpointSum; -- __u32 checkpointXor; -+ int checkpt_page_seq; /* running sequence number of checkpoint pages */ -+ int checkpt_byte_count; -+ int checkpt_byte_offs; -+ __u8 *checkpt_buffer; -+ int checkpt_open_write; -+ int blocks_in_checkpt; -+ int checkpt_cur_chunk; -+ int checkpt_cur_block; -+ int checkpt_next_block; -+ int *checkpt_block_list; -+ int checkpt_max_blocks; -+ __u32 checkpt_sum; -+ __u32 checkpt_xor; - -- int nCheckpointBlocksRequired; /* Number of blocks needed to store current checkpoint set */ -+ int checkpoint_blocks_required; /* Number of blocks needed to store current checkpoint set */ - - /* Block Info */ -- yaffs_BlockInfo *blockInfo; -- __u8 *chunkBits; /* bitmap of chunks in use */ -- unsigned blockInfoAlt:1; /* was allocated using alternative strategy */ -- unsigned chunkBitsAlt:1; /* was allocated using alternative strategy */ -- int chunkBitmapStride; /* Number of bytes of chunkBits per block. -- * Must be consistent with nChunksPerBlock. -+ yaffs_block_info_t *block_info; -+ __u8 *chunk_bits; /* bitmap of chunks in use */ -+ unsigned block_info_alt:1; /* was allocated using alternative strategy */ -+ unsigned chunk_bits_alt:1; /* was allocated using alternative strategy */ -+ int chunk_bit_stride; /* Number of bytes of chunk_bits per block. -+ * Must be consistent with chunks_per_block. - */ - -- int nErasedBlocks; -- int allocationBlock; /* Current block being allocated off */ -- __u32 allocationPage; -- int allocationBlockFinder; /* Used to search for next allocation block */ -- -- /* Runtime state */ -- int nTnodesCreated; -- yaffs_Tnode *freeTnodes; -- int nFreeTnodes; -- yaffs_TnodeList *allocatedTnodeList; -- -- int isDoingGC; -- int gcBlock; -- int gcChunk; -- -- int nObjectsCreated; -- yaffs_Object *freeObjects; -- int nFreeObjects; -- -- int nHardLinks; -- -- yaffs_ObjectList *allocatedObjectList; -- -- yaffs_ObjectBucket objectBucket[YAFFS_NOBJECT_BUCKETS]; -- -- int nFreeChunks; -- -- int currentDirtyChecker; /* Used to find current dirtiest block */ -- -- __u32 *gcCleanupList; /* objects to delete at the end of a GC. */ -- int nonAggressiveSkip; /* GC state/mode */ -- -- /* Statistcs */ -- int nPageWrites; -- int nPageReads; -- int nBlockErasures; -- int nErasureFailures; -- int nGCCopies; -- int garbageCollections; -- int passiveGarbageCollections; -- int nRetriedWrites; -- int nRetiredBlocks; -- int eccFixed; -- int eccUnfixed; -- int tagsEccFixed; -- int tagsEccUnfixed; -- int nDeletions; -- int nUnmarkedDeletions; -- -- int hasPendingPrioritisedGCs; /* We think this device might have pending prioritised gcs */ -+ int n_erased_blocks; -+ int alloc_block; /* Current block being allocated off */ -+ __u32 alloc_page; -+ int alloc_block_finder; /* Used to search for next allocation block */ -+ -+ /* Object and Tnode memory management */ -+ void *allocator; -+ int n_obj; -+ int n_tnodes; -+ -+ int n_hardlinks; -+ -+ yaffs_obj_bucket obj_bucket[YAFFS_NOBJECT_BUCKETS]; -+ __u32 bucket_finder; -+ -+ int n_free_chunks; -+ -+ /* Garbage collection control */ -+ __u32 *gc_cleanup_list; /* objects to delete at the end of a GC. */ -+ __u32 n_clean_ups; -+ -+ unsigned has_pending_prioritised_gc; /* We think this device might have pending prioritised gcs */ -+ unsigned gc_disable; -+ unsigned gc_block_finder; -+ unsigned gc_dirtiest; -+ unsigned gc_pages_in_use; -+ unsigned gc_not_done; -+ unsigned gc_block; -+ unsigned gc_chunk; -+ unsigned gc_skip; - - /* Special directories */ -- yaffs_Object *rootDir; -- yaffs_Object *lostNFoundDir; -+ yaffs_obj_t *root_dir; -+ yaffs_obj_t *lost_n_found; - - /* Buffer areas for storing data to recover from write failures TODO -- * __u8 bufferedData[YAFFS_CHUNKS_PER_BLOCK][YAFFS_BYTES_PER_CHUNK]; -- * yaffs_Spare bufferedSpare[YAFFS_CHUNKS_PER_BLOCK]; -+ * __u8 buffered_data[YAFFS_CHUNKS_PER_BLOCK][YAFFS_BYTES_PER_CHUNK]; -+ * yaffs_spare buffered_spare[YAFFS_CHUNKS_PER_BLOCK]; - */ - -- int bufferedBlock; /* Which block is buffered here? */ -- int doingBufferedBlockRewrite; -- -- yaffs_ChunkCache *srCache; -- int srLastUse; -+ int buffered_block; /* Which block is buffered here? */ -+ int doing_buffered_block_rewrite; - -- int cacheHits; -+ yaffs_cache_t *cache; -+ int cache_last_use; - - /* Stuff for background deletion and unlinked files.*/ -- yaffs_Object *unlinkedDir; /* Directory where unlinked and deleted files live. */ -- yaffs_Object *deletedDir; /* Directory where deleted objects are sent to disappear. */ -- yaffs_Object *unlinkedDeletion; /* Current file being background deleted.*/ -- int nDeletedFiles; /* Count of files awaiting deletion;*/ -- int nUnlinkedFiles; /* Count of unlinked files. */ -- int nBackgroundDeletions; /* Count of background deletions. */ -- -+ yaffs_obj_t *unlinked_dir; /* Directory where unlinked and deleted files live. */ -+ yaffs_obj_t *del_dir; /* Directory where deleted objects are sent to disappear. */ -+ yaffs_obj_t *unlinked_deletion; /* Current file being background deleted.*/ -+ int n_deleted_files; /* Count of files awaiting deletion;*/ -+ int n_unlinked_files; /* Count of unlinked files. */ -+ int n_bg_deletions; /* Count of background deletions. */ - - /* Temporary buffer management */ -- yaffs_TempBuffer tempBuffer[YAFFS_N_TEMP_BUFFERS]; -- int maxTemp; -- int tempInUse; -- int unmanagedTempAllocations; -- int unmanagedTempDeallocations; -+ yaffs_buffer_t temp_buffer[YAFFS_N_TEMP_BUFFERS]; -+ int max_temp; -+ int temp_in_use; -+ int unmanaged_buffer_allocs; -+ int unmanaged_buffer_deallocs; - - /* yaffs2 runtime stuff */ -- unsigned sequenceNumber; /* Sequence number of currently allocating block */ -- unsigned oldestDirtySequence; -+ unsigned seq_number; /* Sequence number of currently allocating block */ -+ unsigned oldest_dirty_seq; -+ unsigned oldest_dirty_block; -+ -+ /* Block refreshing */ -+ int refresh_skip; /* A skip down counter. Refresh happens when this gets to zero. */ -+ -+ /* Dirty directory handling */ -+ struct ylist_head dirty_dirs; /* List of dirty directories */ -+ -+ -+ /* Statistcs */ -+ __u32 n_page_writes; -+ __u32 n_page_reads; -+ __u32 n_erasures; -+ __u32 n_erase_failures; -+ __u32 n_gc_copies; -+ __u32 all_gcs; -+ __u32 passive_gc_count; -+ __u32 oldest_dirty_gc_count; -+ __u32 n_gc_blocks; -+ __u32 bg_gcs; -+ __u32 n_retired_writes; -+ __u32 n_retired_blocks; -+ __u32 n_ecc_fixed; -+ __u32 n_ecc_unfixed; -+ __u32 n_tags_ecc_fixed; -+ __u32 n_tags_ecc_unfixed; -+ __u32 n_deletions; -+ __u32 n_unmarked_deletions; -+ __u32 refresh_count; -+ __u32 cache_hits; - - }; - --typedef struct yaffs_DeviceStruct yaffs_Device; -+typedef struct yaffs_dev_s yaffs_dev_t; - - /* The static layout of block usage etc is stored in the super block header */ - typedef struct { - int StructType; - int version; -- int checkpointStartBlock; -- int checkpointEndBlock; -- int startBlock; -- int endBlock; -+ int checkpt_start_block; -+ int checkpt_end_block; -+ int start_block; -+ int end_block; - int rfu[100]; --} yaffs_SuperBlockHeader; -+} yaffs_sb_header; - - /* The CheckpointDevice structure holds the device information that changes at runtime and - * must be preserved over unmount/mount cycles. - */ - typedef struct { -- int structType; -- int nErasedBlocks; -- int allocationBlock; /* Current block being allocated off */ -- __u32 allocationPage; -- int nFreeChunks; -- -- int nDeletedFiles; /* Count of files awaiting deletion;*/ -- int nUnlinkedFiles; /* Count of unlinked files. */ -- int nBackgroundDeletions; /* Count of background deletions. */ -+ int struct_type; -+ int n_erased_blocks; -+ int alloc_block; /* Current block being allocated off */ -+ __u32 alloc_page; -+ int n_free_chunks; -+ -+ int n_deleted_files; /* Count of files awaiting deletion;*/ -+ int n_unlinked_files; /* Count of unlinked files. */ -+ int n_bg_deletions; /* Count of background deletions. */ - - /* yaffs2 runtime stuff */ -- unsigned sequenceNumber; /* Sequence number of currently allocating block */ -- unsigned oldestDirtySequence; -+ unsigned seq_number; /* Sequence number of currently allocating block */ - --} yaffs_CheckpointDevice; -+} yaffs_checkpt_dev_t; - - - typedef struct { -- int structType; -+ int struct_type; - __u32 magic; - __u32 version; - __u32 head; --} yaffs_CheckpointValidity; -+} yaffs_checkpt_validty_t; -+ -+ -+struct yaffs_shadow_fixer_s { -+ int obj_id; -+ int shadowed_id; -+ struct yaffs_shadow_fixer_s *next; -+}; -+ -+/* Structure for doing xattr modifications */ -+typedef struct { -+ int set; /* If 0 then this is a deletion */ -+ const YCHAR *name; -+ const void *data; -+ int size; -+ int flags; -+ int result; -+}yaffs_xattr_mod; - - - /*----------------------- YAFFS Functions -----------------------*/ - --int yaffs_GutsInitialise(yaffs_Device *dev); --void yaffs_Deinitialise(yaffs_Device *dev); -+int yaffs_guts_initialise(yaffs_dev_t *dev); -+void yaffs_deinitialise(yaffs_dev_t *dev); - --int yaffs_GetNumberOfFreeChunks(yaffs_Device *dev); -+int yaffs_get_n_free_chunks(yaffs_dev_t *dev); - --int yaffs_RenameObject(yaffs_Object *oldDir, const YCHAR *oldName, -- yaffs_Object *newDir, const YCHAR *newName); -+int yaffs_rename_obj(yaffs_obj_t *old_dir, const YCHAR *old_name, -+ yaffs_obj_t *new_dir, const YCHAR *new_name); - --int yaffs_Unlink(yaffs_Object *dir, const YCHAR *name); --int yaffs_DeleteObject(yaffs_Object *obj); -+int yaffs_unlinker(yaffs_obj_t *dir, const YCHAR *name); -+int yaffs_del_obj(yaffs_obj_t *obj); - --int yaffs_GetObjectName(yaffs_Object *obj, YCHAR *name, int buffSize); --int yaffs_GetObjectFileLength(yaffs_Object *obj); --int yaffs_GetObjectInode(yaffs_Object *obj); --unsigned yaffs_GetObjectType(yaffs_Object *obj); --int yaffs_GetObjectLinkCount(yaffs_Object *obj); -+int yaffs_get_obj_name(yaffs_obj_t *obj, YCHAR *name, int buffer_size); -+int yaffs_get_obj_length(yaffs_obj_t *obj); -+int yaffs_get_obj_inode(yaffs_obj_t *obj); -+unsigned yaffs_get_obj_type(yaffs_obj_t *obj); -+int yaffs_get_obj_link_count(yaffs_obj_t *obj); - --int yaffs_SetAttributes(yaffs_Object *obj, struct iattr *attr); --int yaffs_GetAttributes(yaffs_Object *obj, struct iattr *attr); -+int yaffs_set_attribs(yaffs_obj_t *obj, struct iattr *attr); -+int yaffs_get_attribs(yaffs_obj_t *obj, struct iattr *attr); - - /* File operations */ --int yaffs_ReadDataFromFile(yaffs_Object *obj, __u8 *buffer, loff_t offset, -- int nBytes); --int yaffs_WriteDataToFile(yaffs_Object *obj, const __u8 *buffer, loff_t offset, -- int nBytes, int writeThrough); --int yaffs_ResizeFile(yaffs_Object *obj, loff_t newSize); -+int yaffs_file_rd(yaffs_obj_t *obj, __u8 *buffer, loff_t offset, -+ int n_bytes); -+int yaffs_wr_file(yaffs_obj_t *obj, const __u8 *buffer, loff_t offset, -+ int n_bytes, int write_trhrough); -+int yaffs_resize_file(yaffs_obj_t *obj, loff_t new_size); - --yaffs_Object *yaffs_MknodFile(yaffs_Object *parent, const YCHAR *name, -+yaffs_obj_t *yaffs_create_file(yaffs_obj_t *parent, const YCHAR *name, - __u32 mode, __u32 uid, __u32 gid); --int yaffs_FlushFile(yaffs_Object *obj, int updateTime); -+ -+int yaffs_flush_file(yaffs_obj_t *obj, int update_time, int data_sync); - - /* Flushing and checkpointing */ --void yaffs_FlushEntireDeviceCache(yaffs_Device *dev); -+void yaffs_flush_whole_cache(yaffs_dev_t *dev); - --int yaffs_CheckpointSave(yaffs_Device *dev); --int yaffs_CheckpointRestore(yaffs_Device *dev); -+int yaffs_checkpoint_save(yaffs_dev_t *dev); -+int yaffs_checkpoint_restore(yaffs_dev_t *dev); - - /* Directory operations */ --yaffs_Object *yaffs_MknodDirectory(yaffs_Object *parent, const YCHAR *name, -+yaffs_obj_t *yaffs_create_dir(yaffs_obj_t *parent, const YCHAR *name, - __u32 mode, __u32 uid, __u32 gid); --yaffs_Object *yaffs_FindObjectByName(yaffs_Object *theDir, const YCHAR *name); --int yaffs_ApplyToDirectoryChildren(yaffs_Object *theDir, -- int (*fn) (yaffs_Object *)); -+yaffs_obj_t *yaffs_find_by_name(yaffs_obj_t *the_dir, const YCHAR *name); -+int yaffs_ApplyToDirectoryChildren(yaffs_obj_t *the_dir, -+ int (*fn) (yaffs_obj_t *)); - --yaffs_Object *yaffs_FindObjectByNumber(yaffs_Device *dev, __u32 number); -+yaffs_obj_t *yaffs_find_by_number(yaffs_dev_t *dev, __u32 number); - - /* Link operations */ --yaffs_Object *yaffs_Link(yaffs_Object *parent, const YCHAR *name, -- yaffs_Object *equivalentObject); -+yaffs_obj_t *yaffs_link_obj(yaffs_obj_t *parent, const YCHAR *name, -+ yaffs_obj_t *equiv_obj); - --yaffs_Object *yaffs_GetEquivalentObject(yaffs_Object *obj); -+yaffs_obj_t *yaffs_get_equivalent_obj(yaffs_obj_t *obj); - - /* Symlink operations */ --yaffs_Object *yaffs_MknodSymLink(yaffs_Object *parent, const YCHAR *name, -+yaffs_obj_t *yaffs_create_symlink(yaffs_obj_t *parent, const YCHAR *name, - __u32 mode, __u32 uid, __u32 gid, - const YCHAR *alias); --YCHAR *yaffs_GetSymlinkAlias(yaffs_Object *obj); -+YCHAR *yaffs_get_symlink_alias(yaffs_obj_t *obj); - - /* Special inodes (fifos, sockets and devices) */ --yaffs_Object *yaffs_MknodSpecial(yaffs_Object *parent, const YCHAR *name, -+yaffs_obj_t *yaffs_create_special(yaffs_obj_t *parent, const YCHAR *name, - __u32 mode, __u32 uid, __u32 gid, __u32 rdev); - -+ -+int yaffs_set_xattrib(yaffs_obj_t *obj, const YCHAR *name, const void * value, int size, int flags); -+int yaffs_get_xattrib(yaffs_obj_t *obj, const YCHAR *name, void *value, int size); -+int yaffs_list_xattrib(yaffs_obj_t *obj, char *buffer, int size); -+int yaffs_remove_xattrib(yaffs_obj_t *obj, const YCHAR *name); -+ - /* Special directories */ --yaffs_Object *yaffs_Root(yaffs_Device *dev); --yaffs_Object *yaffs_LostNFound(yaffs_Device *dev); -+yaffs_obj_t *yaffs_root(yaffs_dev_t *dev); -+yaffs_obj_t *yaffs_lost_n_found(yaffs_dev_t *dev); - - #ifdef CONFIG_YAFFS_WINCE - /* CONFIG_YAFFS_WINCE special stuff */ --void yfsd_WinFileTimeNow(__u32 target[2]); -+void yfsd_win_file_time_now(__u32 target[2]); - #endif - --#ifdef __KERNEL__ -+void yaffs_handle_defered_free(yaffs_obj_t *obj); - --void yaffs_HandleDeferedFree(yaffs_Object *obj); --#endif -+void yaffs_update_dirty_dirs(yaffs_dev_t *dev); -+ -+int yaffs_bg_gc(yaffs_dev_t *dev, unsigned urgency); - - /* Debug dump */ --int yaffs_DumpObject(yaffs_Object *obj); -+int yaffs_dump_obj(yaffs_obj_t *obj); - --void yaffs_GutsTest(yaffs_Device *dev); -+void yaffs_guts_test(yaffs_dev_t *dev); - --/* A few useful functions */ --void yaffs_InitialiseTags(yaffs_ExtendedTags *tags); --void yaffs_DeleteChunk(yaffs_Device *dev, int chunkId, int markNAND, int lyn); --int yaffs_CheckFF(__u8 *buffer, int nBytes); --void yaffs_HandleChunkError(yaffs_Device *dev, yaffs_BlockInfo *bi); -+/* A few useful functions to be used within the core files*/ -+void yaffs_chunk_del(yaffs_dev_t *dev, int chunk_id, int mark_flash, int lyn); -+int yaffs_check_ff(__u8 *buffer, int n_bytes); -+void yaffs_handle_chunk_error(yaffs_dev_t *dev, yaffs_block_info_t *bi); -+ -+__u8 *yaffs_get_temp_buffer(yaffs_dev_t *dev, int line_no); -+void yaffs_release_temp_buffer(yaffs_dev_t *dev, __u8 *buffer, int line_no); -+ -+yaffs_obj_t *yaffs_find_or_create_by_number(yaffs_dev_t *dev, -+ int number, -+ yaffs_obj_type type); -+int yaffs_put_chunk_in_file(yaffs_obj_t *in, int inode_chunk, -+ int nand_chunk, int in_scan); -+void yaffs_set_obj_name(yaffs_obj_t *obj, const YCHAR *name); -+void yaffs_set_obj_name_from_oh(yaffs_obj_t *obj, const yaffs_obj_header *oh); -+void yaffs_add_obj_to_dir(yaffs_obj_t *directory, -+ yaffs_obj_t *obj); -+YCHAR *yaffs_clone_str(const YCHAR *str); -+void yaffs_link_fixup(yaffs_dev_t *dev, yaffs_obj_t *hard_list); -+void yaffs_block_became_dirty(yaffs_dev_t *dev, int block_no); -+int yaffs_update_oh(yaffs_obj_t *in, const YCHAR *name, -+ int force, int is_shrink, int shadows, -+ yaffs_xattr_mod *xop); -+void yaffs_handle_shadowed_obj(yaffs_dev_t *dev, int obj_id, -+ int backward_scanning); -+int yaffs_check_alloc_available(yaffs_dev_t *dev, int n_chunks); -+yaffs_tnode_t *yaffs_get_tnode(yaffs_dev_t *dev); -+yaffs_tnode_t *yaffs_add_find_tnode_0(yaffs_dev_t *dev, -+ yaffs_file_s *file_struct, -+ __u32 chunk_id, -+ yaffs_tnode_t *passed_tn); -+ -+int yaffs_do_file_wr(yaffs_obj_t *in, const __u8 *buffer, loff_t offset, -+ int n_bytes, int write_trhrough); -+void yaffs_resize_file_down( yaffs_obj_t *obj, loff_t new_size); -+void yaffs_skip_rest_of_block(yaffs_dev_t *dev); -+ -+int yaffs_count_free_chunks(yaffs_dev_t *dev); -+ -+yaffs_tnode_t *yaffs_find_tnode_0(yaffs_dev_t *dev, -+ yaffs_file_s *file_struct, -+ __u32 chunk_id); - --__u8 *yaffs_GetTempBuffer(yaffs_Device *dev, int lineNo); --void yaffs_ReleaseTempBuffer(yaffs_Device *dev, __u8 *buffer, int lineNo); -+__u32 yaffs_get_group_base(yaffs_dev_t *dev, yaffs_tnode_t *tn, unsigned pos); - - #endif ---- a/fs/yaffs2/yaffsinterface.h -+++ b/fs/yaffs2/yaffsinterface.h -@@ -1,7 +1,7 @@ - /* - * YAFFS: Yet another Flash File System . A NAND-flash specific file system. - * -- * Copyright (C) 2002-2007 Aleph One Ltd. -+ * Copyright (C) 2002-2010 Aleph One Ltd. - * for Toby Churchill Ltd and Brightstar Engineering - * - * Created by Charles Manning -@@ -16,6 +16,6 @@ - #ifndef __YAFFSINTERFACE_H__ - #define __YAFFSINTERFACE_H__ - --int yaffs_Initialise(unsigned nBlocks); -+int yaffs_initialise(unsigned nBlocks); - - #endif ---- /dev/null -+++ b/fs/yaffs2/yaffs_linux_allocator.c -@@ -0,0 +1,200 @@ -+/* -+ * YAFFS: Yet another Flash File System . A NAND-flash specific file system. -+ * -+ * Copyright (C) 2002-2010 Aleph One Ltd. -+ * for Toby Churchill Ltd and Brightstar Engineering -+ * -+ * Created by Charles Manning -+ * -+ * This program is free software; you can redistribute it and/or modify -+ * it under the terms of the GNU Lesser General Public License version 2.1 as -+ * published by the Free Software Foundation. -+ * -+ * Note: Only YAFFS headers are LGPL, YAFFS C code is covered by GPL. -+ * -+ * Note: Tis code is currently unused. Being checked in in case it becomes useful. -+ */ -+ -+ -+#include "yaffs_allocator.h" -+#include "yaffs_guts.h" -+#include "yaffs_trace.h" -+#include "yportenv.h" -+#include "yaffs_linux.h" -+/* -+ * Start out with the same allocator as yaffs direct. -+ * Todo: Change to Linux slab allocator. -+ */ -+ -+ -+ -+#define NAMELEN 20 -+struct yaffs_AllocatorStruct { -+ char tnode_name[NAMELEN+1]; -+ char object_name[NAMELEN+1]; -+ struct kmem_cache *tnode_cache; -+ struct kmem_cache *object_cache; -+}; -+ -+typedef struct yaffs_AllocatorStruct yaffs_Allocator; -+ -+int mount_id; -+ -+void yaffs_deinit_raw_tnodes_and_objs(yaffs_dev_t *dev) -+{ -+ yaffs_Allocator *allocator = (yaffs_Allocator *)dev->allocator; -+ -+ T(YAFFS_TRACE_ALLOCATE,(TSTR("Deinitialising yaffs allocator\n"))); -+ -+ if(allocator){ -+ if(allocator->tnode_cache){ -+ kmem_cache_destroy(allocator->tnode_cache); -+ allocator->tnode_cache = NULL; -+ } else { -+ T(YAFFS_TRACE_ALWAYS, -+ (TSTR("NULL tnode cache\n"))); -+ YBUG(); -+ } -+ -+ if(allocator->object_cache){ -+ kmem_cache_destroy(allocator->object_cache); -+ allocator->object_cache = NULL; -+ } else { -+ T(YAFFS_TRACE_ALWAYS, -+ (TSTR("NULL object cache\n"))); -+ YBUG(); -+ } -+ -+ YFREE(allocator); -+ -+ } else { -+ T(YAFFS_TRACE_ALWAYS, -+ (TSTR("Deinitialising NULL allocator\n"))); -+ YBUG(); -+ } -+ dev->allocator = NULL; -+} -+ -+ -+static void fake_ctor0(void *data){data = data;} -+static void fake_ctor1(void *data){data = data;} -+static void fake_ctor2(void *data){data = data;} -+static void fake_ctor3(void *data){data = data;} -+static void fake_ctor4(void *data){data = data;} -+static void fake_ctor5(void *data){data = data;} -+static void fake_ctor6(void *data){data = data;} -+static void fake_ctor7(void *data){data = data;} -+static void fake_ctor8(void *data){data = data;} -+static void fake_ctor9(void *data){data = data;} -+ -+static void (*fake_ctor_list[10]) (void *) = { -+ fake_ctor0, -+ fake_ctor1, -+ fake_ctor2, -+ fake_ctor3, -+ fake_ctor4, -+ fake_ctor5, -+ fake_ctor6, -+ fake_ctor7, -+ fake_ctor8, -+ fake_ctor9, -+}; -+ -+void yaffs_init_raw_tnodes_and_objs(yaffs_dev_t *dev) -+{ -+ yaffs_Allocator *allocator; -+ unsigned mount_id = yaffs_dev_to_lc(dev)->mount_id; -+ -+ T(YAFFS_TRACE_ALLOCATE,(TSTR("Initialising yaffs allocator\n"))); -+ -+ if(dev->allocator) -+ YBUG(); -+ else if(mount_id >= 10){ -+ T(YAFFS_TRACE_ALWAYS,(TSTR("Bad mount_id %u\n"),mount_id)); -+ } else { -+ allocator = YMALLOC(sizeof(yaffs_Allocator)); -+ memset(allocator,0,sizeof(yaffs_Allocator)); -+ dev->allocator = allocator; -+ -+ if(!dev->allocator){ -+ T(YAFFS_TRACE_ALWAYS, -+ (TSTR("yaffs allocator creation failed\n"))); -+ YBUG(); -+ return; -+ -+ } -+ -+ sprintf(allocator->tnode_name,"yaffs_t_%u",mount_id); -+ sprintf(allocator->object_name,"yaffs_o_%u",mount_id); -+ -+ allocator->tnode_cache = -+ kmem_cache_create(allocator->tnode_name, -+ dev->tnode_size, -+ 0, 0, -+ fake_ctor_list[mount_id]); -+ if(allocator->tnode_cache) -+ T(YAFFS_TRACE_ALLOCATE, -+ (TSTR("tnode cache \"%s\" %p\n"), -+ allocator->tnode_name,allocator->tnode_cache)); -+ else { -+ T(YAFFS_TRACE_ALWAYS, -+ (TSTR("yaffs cache creation failed\n"))); -+ YBUG(); -+ } -+ -+ -+ allocator->object_cache = -+ kmem_cache_create(allocator->object_name, -+ sizeof(yaffs_obj_t), -+ 0, 0, -+ fake_ctor_list[mount_id]); -+ -+ if(allocator->object_cache) -+ T(YAFFS_TRACE_ALLOCATE, -+ (TSTR("object cache \"%s\" %p\n"), -+ allocator->object_name,allocator->object_cache)); -+ -+ else { -+ T(YAFFS_TRACE_ALWAYS, -+ (TSTR("yaffs cache creation failed\n"))); -+ YBUG(); -+ } -+ } -+} -+ -+ -+yaffs_tnode_t *yaffs_alloc_raw_tnode(yaffs_dev_t *dev) -+{ -+ yaffs_Allocator *allocator = dev->allocator; -+ if(!allocator || !allocator->tnode_cache){ -+ YBUG(); -+ return NULL; -+ } -+ return kmem_cache_alloc(allocator->tnode_cache, GFP_NOFS); -+} -+ -+void yaffs_free_raw_tnode(yaffs_dev_t *dev, yaffs_tnode_t *tn) -+{ -+ yaffs_Allocator *allocator = dev->allocator; -+ kmem_cache_free(allocator->tnode_cache,tn); -+} -+ -+yaffs_obj_t *yaffs_alloc_raw_obj(yaffs_dev_t *dev) -+{ -+ yaffs_Allocator *allocator = dev->allocator; -+ if(!allocator){ -+ YBUG(); -+ return NULL; -+ } -+ if(!allocator->object_cache){ -+ YBUG(); -+ return NULL; -+ } -+ return kmem_cache_alloc(allocator->object_cache, GFP_NOFS); -+} -+ -+void yaffs_free_raw_obj(yaffs_dev_t *dev, yaffs_obj_t *obj) -+{ -+ yaffs_Allocator *allocator = dev->allocator; -+ kmem_cache_free(allocator->object_cache,obj); -+} ---- /dev/null -+++ b/fs/yaffs2/yaffs_linux.h -@@ -0,0 +1,43 @@ -+/* -+ * YAFFS: Yet another Flash File System . A NAND-flash specific file system. -+ * -+ * Copyright (C) 2002-2010 Aleph One Ltd. -+ * for Toby Churchill Ltd and Brightstar Engineering -+ * -+ * Created by Charles Manning -+ * -+ * This program is free software; you can redistribute it and/or modify -+ * it under the terms of the GNU Lesser General Public License version 2.1 as -+ * published by the Free Software Foundation. -+ * -+ * Note: Only YAFFS headers are LGPL, YAFFS C code is covered by GPL. -+ */ -+ -+#ifndef __YAFFS_LINUX_H__ -+#define __YAFFS_LINUX_H__ -+ -+#include "devextras.h" -+#include "yportenv.h" -+ -+struct yaffs_LinuxContext { -+ struct ylist_head contextList; /* List of these we have mounted */ -+ struct yaffs_dev_s *dev; -+ struct super_block * superBlock; -+ struct task_struct *bgThread; /* Background thread for this device */ -+ int bgRunning; -+ struct semaphore grossLock; /* Gross locking semaphore */ -+ __u8 *spareBuffer; /* For mtdif2 use. Don't know the size of the buffer -+ * at compile time so we have to allocate it. -+ */ -+ struct ylist_head searchContexts; -+ void (*putSuperFunc)(struct super_block *sb); -+ -+ struct task_struct *readdirProcess; -+ unsigned mount_id; -+}; -+ -+#define yaffs_dev_to_lc(dev) ((struct yaffs_LinuxContext *)((dev)->os_context)) -+#define yaffs_dev_to_mtd(dev) ((struct mtd_info *)((dev)->driver_context)) -+ -+#endif -+ ---- /dev/null -+++ b/fs/yaffs2/yaffs_list.h -@@ -0,0 +1,127 @@ -+/* -+ * YAFFS: Yet another Flash File System . A NAND-flash specific file system. -+ * -+ * Copyright (C) 2002-2010 Aleph One Ltd. -+ * for Toby Churchill Ltd and Brightstar Engineering -+ * -+ * Created by Charles Manning -+ * -+ * This program is free software; you can redistribute it and/or modify -+ * it under the terms of the GNU Lesser General Public License version 2.1 as -+ * published by the Free Software Foundation. -+ * -+ * Note: Only YAFFS headers are LGPL, YAFFS C code is covered by GPL. -+ */ -+ -+/* -+ * This file is just holds extra declarations of macros that would normally -+ * be providesd in the Linux kernel. These macros have been written from -+ * scratch but are functionally equivalent to the Linux ones. -+ * -+ */ -+ -+#ifndef __YAFFS_LIST_H__ -+#define __YAFFS_LIST_H__ -+ -+ -+#include "yportenv.h" -+ -+/* -+ * This is a simple doubly linked list implementation that matches the -+ * way the Linux kernel doubly linked list implementation works. -+ */ -+ -+struct ylist_head { -+ struct ylist_head *next; /* next in chain */ -+ struct ylist_head *prev; /* previous in chain */ -+}; -+ -+ -+/* Initialise a static list */ -+#define YLIST_HEAD(name) \ -+struct ylist_head name = { &(name), &(name)} -+ -+ -+ -+/* Initialise a list head to an empty list */ -+#define YINIT_LIST_HEAD(p) \ -+do { \ -+ (p)->next = (p);\ -+ (p)->prev = (p); \ -+} while (0) -+ -+ -+/* Add an element to a list */ -+static Y_INLINE void ylist_add(struct ylist_head *newEntry, -+ struct ylist_head *list) -+{ -+ struct ylist_head *listNext = list->next; -+ -+ list->next = newEntry; -+ newEntry->prev = list; -+ newEntry->next = listNext; -+ listNext->prev = newEntry; -+ -+} -+ -+static Y_INLINE void ylist_add_tail(struct ylist_head *newEntry, -+ struct ylist_head *list) -+{ -+ struct ylist_head *listPrev = list->prev; -+ -+ list->prev = newEntry; -+ newEntry->next = list; -+ newEntry->prev = listPrev; -+ listPrev->next = newEntry; -+ -+} -+ -+ -+/* Take an element out of its current list, with or without -+ * reinitialising the links.of the entry*/ -+static Y_INLINE void ylist_del(struct ylist_head *entry) -+{ -+ struct ylist_head *listNext = entry->next; -+ struct ylist_head *listPrev = entry->prev; -+ -+ listNext->prev = listPrev; -+ listPrev->next = listNext; -+ -+} -+ -+static Y_INLINE void ylist_del_init(struct ylist_head *entry) -+{ -+ ylist_del(entry); -+ entry->next = entry->prev = entry; -+} -+ -+ -+/* Test if the list is empty */ -+static Y_INLINE int ylist_empty(struct ylist_head *entry) -+{ -+ return (entry->next == entry); -+} -+ -+ -+/* ylist_entry takes a pointer to a list entry and offsets it to that -+ * we can find a pointer to the object it is embedded in. -+ */ -+ -+ -+#define ylist_entry(entry, type, member) \ -+ ((type *)((char *)(entry)-(unsigned long)(&((type *)NULL)->member))) -+ -+ -+/* ylist_for_each and list_for_each_safe iterate over lists. -+ * ylist_for_each_safe uses temporary storage to make the list delete safe -+ */ -+ -+#define ylist_for_each(itervar, list) \ -+ for (itervar = (list)->next; itervar != (list); itervar = itervar->next) -+ -+#define ylist_for_each_safe(itervar, saveVar, list) \ -+ for (itervar = (list)->next, saveVar = (list)->next->next; \ -+ itervar != (list); itervar = saveVar, saveVar = saveVar->next) -+ -+ -+#endif ---- a/fs/yaffs2/yaffs_mtdif1.c -+++ b/fs/yaffs2/yaffs_mtdif1.c -@@ -2,7 +2,7 @@ - * YAFFS: Yet another FFS. A NAND-flash specific file system. - * yaffs_mtdif1.c NAND mtd interface functions for small-page NAND. - * -- * Copyright (C) 2002 Aleph One Ltd. -+ * Copyright (C) 2002-2010 Aleph One Ltd. - * for Toby Churchill Ltd and Brightstar Engineering - * - * This program is free software; you can redistribute it and/or modify -@@ -18,15 +18,17 @@ - * - * These functions are invoked via function pointers in yaffs_nand.c. - * This replaces functionality provided by functions in yaffs_mtdif.c -- * and the yaffs_TagsCompatability functions in yaffs_tagscompat.c that are -+ * and the yaffs_tags_tCompatability functions in yaffs_tagscompat.c that are - * called in yaffs_mtdif.c when the function pointers are NULL. -- * We assume the MTD layer is performing ECC (useNANDECC is true). -+ * We assume the MTD layer is performing ECC (use_nand_ecc is true). - */ - - #include "yportenv.h" -+#include "yaffs_trace.h" - #include "yaffs_guts.h" - #include "yaffs_packedtags1.h" --#include "yaffs_tagscompat.h" /* for yaffs_CalcTagsECC */ -+#include "yaffs_tagscompat.h" /* for yaffs_calc_tags_ecc */ -+#include "yaffs_linux.h" - - #include "linux/kernel.h" - #include "linux/version.h" -@@ -36,8 +38,6 @@ - /* Don't compile this module if we don't have MTD's mtd_oob_ops interface */ - #if (MTD_VERSION_CODE > MTD_VERSION(2, 6, 17)) - --const char *yaffs_mtdif1_c_version = "$Id: yaffs_mtdif1.c,v 1.10 2009-03-09 07:41:10 charles Exp $"; -- - #ifndef CONFIG_YAFFS_9BYTE_TAGS - # define YTAG1_SIZE 8 - #else -@@ -51,12 +51,12 @@ const char *yaffs_mtdif1_c_version = "$I - * adjust 'oobfree' to match your existing Yaffs data. - * - * This nand_ecclayout scatters/gathers to/from the old-yaffs layout with the -- * pageStatus byte (at NAND spare offset 4) scattered/gathered from/to -+ * page_status byte (at NAND spare offset 4) scattered/gathered from/to - * the 9th byte. - * - * Old-style on-NAND format: T0,T1,T2,T3,P,B,T4,T5,E0,E1,E2,T6,T7,E3,E4,E5 -- * We have/need PackedTags1 plus pageStatus: T0,T1,T2,T3,T4,T5,T6,T7,P -- * where Tn are the tag bytes, En are MTD's ECC bytes, P is the pageStatus -+ * We have/need PackedTags1 plus page_status: T0,T1,T2,T3,T4,T5,T6,T7,P -+ * where Tn are the tag bytes, En are MTD's ECC bytes, P is the page_status - * byte and B is the small-page bad-block indicator byte. - */ - static struct nand_ecclayout nand_oob_16 = { -@@ -88,42 +88,40 @@ static struct nand_ecclayout nand_oob_16 - * Any underlying MTD error results in YAFFS_FAIL. - * Returns YAFFS_OK or YAFFS_FAIL. - */ --int nandmtd1_WriteChunkWithTagsToNAND(yaffs_Device *dev, -- int chunkInNAND, const __u8 *data, const yaffs_ExtendedTags *etags) -+int nandmtd1_WriteChunkWithTagsToNAND(yaffs_dev_t *dev, -+ int nand_chunk, const __u8 *data, const yaffs_ext_tags *etags) - { -- struct mtd_info *mtd = dev->genericDevice; -- int chunkBytes = dev->nDataBytesPerChunk; -- loff_t addr = ((loff_t)chunkInNAND) * chunkBytes; -+ struct mtd_info *mtd = yaffs_dev_to_mtd(dev); -+ int chunkBytes = dev->data_bytes_per_chunk; -+ loff_t addr = ((loff_t)nand_chunk) * chunkBytes; - struct mtd_oob_ops ops; - yaffs_PackedTags1 pt1; - int retval; - -- /* we assume that PackedTags1 and yaffs_Tags are compatible */ -+ /* we assume that PackedTags1 and yaffs_tags_t are compatible */ - compile_time_assertion(sizeof(yaffs_PackedTags1) == 12); -- compile_time_assertion(sizeof(yaffs_Tags) == 8); -- -- dev->nPageWrites++; -+ compile_time_assertion(sizeof(yaffs_tags_t) == 8); - - yaffs_PackTags1(&pt1, etags); -- yaffs_CalcTagsECC((yaffs_Tags *)&pt1); -+ yaffs_calc_tags_ecc((yaffs_tags_t *)&pt1); - - /* When deleting a chunk, the upper layer provides only skeletal -- * etags, one with chunkDeleted set. However, we need to update the -+ * etags, one with is_deleted set. However, we need to update the - * tags, not erase them completely. So we use the NAND write property - * that only zeroed-bits stick and set tag bytes to all-ones and - * zero just the (not) deleted bit. - */ - #ifndef CONFIG_YAFFS_9BYTE_TAGS -- if (etags->chunkDeleted) { -+ if (etags->is_deleted) { - memset(&pt1, 0xff, 8); - /* clear delete status bit to indicate deleted */ - pt1.deleted = 0; - } - #else - ((__u8 *)&pt1)[8] = 0xff; -- if (etags->chunkDeleted) { -+ if (etags->is_deleted) { - memset(&pt1, 0xff, 8); -- /* zero pageStatus byte to indicate deleted */ -+ /* zero page_status byte to indicate deleted */ - ((__u8 *)&pt1)[8] = 0; - } - #endif -@@ -137,20 +135,20 @@ int nandmtd1_WriteChunkWithTagsToNAND(ya - - retval = mtd->write_oob(mtd, addr, &ops); - if (retval) { -- yaffs_trace(YAFFS_TRACE_MTD, -- "write_oob failed, chunk %d, mtd error %d\n", -- chunkInNAND, retval); -+ T(YAFFS_TRACE_MTD, -+ (TSTR("write_oob failed, chunk %d, mtd error %d"TENDSTR), -+ nand_chunk, retval)); - } - return retval ? YAFFS_FAIL : YAFFS_OK; - } - --/* Return with empty ExtendedTags but add eccResult. -+/* Return with empty ExtendedTags but add ecc_result. - */ --static int rettags(yaffs_ExtendedTags *etags, int eccResult, int retval) -+static int rettags(yaffs_ext_tags *etags, int ecc_result, int retval) - { - if (etags) { - memset(etags, 0, sizeof(*etags)); -- etags->eccResult = eccResult; -+ etags->ecc_result = ecc_result; - } - return retval; - } -@@ -158,30 +156,28 @@ static int rettags(yaffs_ExtendedTags *e - /* Read a chunk (page) from NAND. - * - * Caller expects ExtendedTags data to be usable even on error; that is, -- * all members except eccResult and blockBad are zeroed. -+ * all members except ecc_result and block_bad are zeroed. - * - * - Check ECC results for data (if applicable) - * - Check for blank/erased block (return empty ExtendedTags if blank) - * - Check the PackedTags1 mini-ECC (correct if necessary/possible) - * - Convert PackedTags1 to ExtendedTags -- * - Update eccResult and blockBad members to refect state. -+ * - Update ecc_result and block_bad members to refect state. - * - * Returns YAFFS_OK or YAFFS_FAIL. - */ --int nandmtd1_ReadChunkWithTagsFromNAND(yaffs_Device *dev, -- int chunkInNAND, __u8 *data, yaffs_ExtendedTags *etags) -+int nandmtd1_ReadChunkWithTagsFromNAND(yaffs_dev_t *dev, -+ int nand_chunk, __u8 *data, yaffs_ext_tags *etags) - { -- struct mtd_info *mtd = dev->genericDevice; -- int chunkBytes = dev->nDataBytesPerChunk; -- loff_t addr = ((loff_t)chunkInNAND) * chunkBytes; -+ struct mtd_info *mtd = yaffs_dev_to_mtd(dev); -+ int chunkBytes = dev->data_bytes_per_chunk; -+ loff_t addr = ((loff_t)nand_chunk) * chunkBytes; - int eccres = YAFFS_ECC_RESULT_NO_ERROR; - struct mtd_oob_ops ops; - yaffs_PackedTags1 pt1; - int retval; - int deleted; - -- dev->nPageReads++; -- - memset(&ops, 0, sizeof(ops)); - ops.mode = MTD_OOB_AUTO; - ops.len = (data) ? chunkBytes : 0; -@@ -200,9 +196,9 @@ int nandmtd1_ReadChunkWithTagsFromNAND(y - */ - retval = mtd->read_oob(mtd, addr, &ops); - if (retval) { -- yaffs_trace(YAFFS_TRACE_MTD, -- "read_oob failed, chunk %d, mtd error %d\n", -- chunkInNAND, retval); -+ T(YAFFS_TRACE_MTD, -+ (TSTR("read_oob failed, chunk %d, mtd error %d"TENDSTR), -+ nand_chunk, retval)); - } - - switch (retval) { -@@ -213,23 +209,23 @@ int nandmtd1_ReadChunkWithTagsFromNAND(y - case -EUCLEAN: - /* MTD's ECC fixed the data */ - eccres = YAFFS_ECC_RESULT_FIXED; -- dev->eccFixed++; -+ dev->n_ecc_fixed++; - break; - - case -EBADMSG: - /* MTD's ECC could not fix the data */ -- dev->eccUnfixed++; -+ dev->n_ecc_unfixed++; - /* fall into... */ - default: - rettags(etags, YAFFS_ECC_RESULT_UNFIXED, 0); -- etags->blockBad = (mtd->block_isbad)(mtd, addr); -+ etags->block_bad = (mtd->block_isbad)(mtd, addr); - return YAFFS_FAIL; - } - - /* Check for a blank/erased chunk. - */ -- if (yaffs_CheckFF((__u8 *)&pt1, 8)) { -- /* when blank, upper layers want eccResult to be <= NO_ERROR */ -+ if (yaffs_check_ff((__u8 *)&pt1, 8)) { -+ /* when blank, upper layers want ecc_result to be <= NO_ERROR */ - return rettags(etags, YAFFS_ECC_RESULT_NO_ERROR, YAFFS_OK); - } - -@@ -241,37 +237,37 @@ int nandmtd1_ReadChunkWithTagsFromNAND(y - deleted = !pt1.deleted; - pt1.deleted = 1; - #else -- deleted = (yaffs_CountBits(((__u8 *)&pt1)[8]) < 7); -+ deleted = (yaffs_count_bits(((__u8 *)&pt1)[8]) < 7); - #endif - - /* Check the packed tags mini-ECC and correct if necessary/possible. - */ -- retval = yaffs_CheckECCOnTags((yaffs_Tags *)&pt1); -+ retval = yaffs_check_tags_ecc((yaffs_tags_t *)&pt1); - switch (retval) { - case 0: - /* no tags error, use MTD result */ - break; - case 1: - /* recovered tags-ECC error */ -- dev->tagsEccFixed++; -+ dev->n_tags_ecc_fixed++; - if (eccres == YAFFS_ECC_RESULT_NO_ERROR) - eccres = YAFFS_ECC_RESULT_FIXED; - break; - default: - /* unrecovered tags-ECC error */ -- dev->tagsEccUnfixed++; -+ dev->n_tags_ecc_unfixed++; - return rettags(etags, YAFFS_ECC_RESULT_UNFIXED, YAFFS_FAIL); - } - - /* Unpack the tags to extended form and set ECC result. -- * [set shouldBeFF just to keep yaffs_UnpackTags1 happy] -+ * [set shouldBeFF just to keep yaffs_unpack_tags1 happy] - */ - pt1.shouldBeFF = 0xFFFFFFFF; -- yaffs_UnpackTags1(etags, &pt1); -- etags->eccResult = eccres; -+ yaffs_unpack_tags1(etags, &pt1); -+ etags->ecc_result = eccres; - - /* Set deleted state */ -- etags->chunkDeleted = deleted; -+ etags->is_deleted = deleted; - return YAFFS_OK; - } - -@@ -282,15 +278,15 @@ int nandmtd1_ReadChunkWithTagsFromNAND(y - * - * Returns YAFFS_OK or YAFFS_FAIL. - */ --int nandmtd1_MarkNANDBlockBad(struct yaffs_DeviceStruct *dev, int blockNo) -+int nandmtd1_MarkNANDBlockBad(struct yaffs_dev_s *dev, int block_no) - { -- struct mtd_info *mtd = dev->genericDevice; -- int blocksize = dev->nChunksPerBlock * dev->nDataBytesPerChunk; -+ struct mtd_info *mtd = yaffs_dev_to_mtd(dev); -+ int blocksize = dev->param.chunks_per_block * dev->data_bytes_per_chunk; - int retval; - -- yaffs_trace(YAFFS_TRACE_BAD_BLOCKS, "marking block %d bad\n", blockNo); -+ T(YAFFS_TRACE_BAD_BLOCKS,(TSTR("marking block %d bad"TENDSTR), block_no)); - -- retval = mtd->block_markbad(mtd, (loff_t)blocksize * blockNo); -+ retval = mtd->block_markbad(mtd, (loff_t)blocksize * block_no); - return (retval) ? YAFFS_FAIL : YAFFS_OK; - } - -@@ -305,9 +301,9 @@ static int nandmtd1_TestPrerequists(stru - int oobavail = mtd->ecclayout->oobavail; - - if (oobavail < YTAG1_SIZE) { -- yaffs_trace(YAFFS_TRACE_ERROR, -- "mtd device has only %d bytes for tags, need %d\n", -- oobavail, YTAG1_SIZE); -+ T(YAFFS_TRACE_ERROR, -+ (TSTR("mtd device has only %d bytes for tags, need %d"TENDSTR), -+ oobavail, YTAG1_SIZE)); - return YAFFS_FAIL; - } - return YAFFS_OK; -@@ -322,13 +318,13 @@ static int nandmtd1_TestPrerequists(stru - * - * Always returns YAFFS_OK. - */ --int nandmtd1_QueryNANDBlock(struct yaffs_DeviceStruct *dev, int blockNo, -- yaffs_BlockState *pState, __u32 *pSequenceNumber) -+int nandmtd1_QueryNANDBlock(struct yaffs_dev_s *dev, int block_no, -+ yaffs_block_state_t *pState, __u32 *pSequenceNumber) - { -- struct mtd_info *mtd = dev->genericDevice; -- int chunkNo = blockNo * dev->nChunksPerBlock; -- loff_t addr = (loff_t)chunkNo * dev->nDataBytesPerChunk; -- yaffs_ExtendedTags etags; -+ struct mtd_info *mtd = yaffs_dev_to_mtd(dev); -+ int chunkNo = block_no * dev->param.chunks_per_block; -+ loff_t addr = (loff_t)chunkNo * dev->data_bytes_per_chunk; -+ yaffs_ext_tags etags; - int state = YAFFS_BLOCK_STATE_DEAD; - int seqnum = 0; - int retval; -@@ -340,17 +336,17 @@ int nandmtd1_QueryNANDBlock(struct yaffs - return YAFFS_FAIL; - - retval = nandmtd1_ReadChunkWithTagsFromNAND(dev, chunkNo, NULL, &etags); -- etags.blockBad = (mtd->block_isbad)(mtd, addr); -- if (etags.blockBad) { -- yaffs_trace(YAFFS_TRACE_BAD_BLOCKS, -- "block %d is marked bad\n", blockNo); -+ etags.block_bad = (mtd->block_isbad)(mtd, addr); -+ if (etags.block_bad) { -+ T(YAFFS_TRACE_BAD_BLOCKS, -+ (TSTR("block %d is marked bad"TENDSTR), block_no)); - state = YAFFS_BLOCK_STATE_DEAD; -- } else if (etags.eccResult != YAFFS_ECC_RESULT_NO_ERROR) { -+ } else if (etags.ecc_result != YAFFS_ECC_RESULT_NO_ERROR) { - /* bad tags, need to look more closely */ - state = YAFFS_BLOCK_STATE_NEEDS_SCANNING; -- } else if (etags.chunkUsed) { -+ } else if (etags.chunk_used) { - state = YAFFS_BLOCK_STATE_NEEDS_SCANNING; -- seqnum = etags.sequenceNumber; -+ seqnum = etags.seq_number; - } else { - state = YAFFS_BLOCK_STATE_EMPTY; - } ---- a/fs/yaffs2/yaffs_mtdif1-compat.c -+++ /dev/null -@@ -1,434 +0,0 @@ --From ian@brightstareng.com Fri May 18 15:06:49 2007 --From ian@brightstareng.com Fri May 18 15:08:21 2007 --Received: from 206.173.66.57.ptr.us.xo.net ([206.173.66.57] helo=zebra.brightstareng.com) -- by apollo.linkchoose.co.uk with esmtp (Exim 4.60) -- (envelope-from ) -- id 1Hp380-00011e-T6 -- for david.goodenough@linkchoose.co.uk; Fri, 18 May 2007 15:08:21 +0100 --Received: from localhost (localhost.localdomain [127.0.0.1]) -- by zebra.brightstareng.com (Postfix) with ESMTP -- id 4819F28C004; Fri, 18 May 2007 10:07:49 -0400 (EDT) --Received: from zebra.brightstareng.com ([127.0.0.1]) -- by localhost (zebra [127.0.0.1]) (amavisd-new, port 10024) with ESMTP -- id 05328-06; Fri, 18 May 2007 10:07:16 -0400 (EDT) --Received: from pippin (unknown [192.168.1.25]) -- by zebra.brightstareng.com (Postfix) with ESMTP -- id 8BEF528C1BC; Fri, 18 May 2007 10:06:53 -0400 (EDT) --From: Ian McDonnell --To: David Goodenough --Subject: Re: something tested this time -- yaffs_mtdif1-compat.c --Date: Fri, 18 May 2007 10:06:49 -0400 --User-Agent: KMail/1.9.1 --References: <200705142207.06909.ian@brightstareng.com> <200705171131.53536.ian@brightstareng.com> <200705181334.32166.david.goodenough@linkchoose.co.uk> --In-Reply-To: <200705181334.32166.david.goodenough@linkchoose.co.uk> --Cc: Andrea Conti , -- Charles Manning --MIME-Version: 1.0 --Content-Type: Multipart/Mixed; -- boundary="Boundary-00=_5LbTGmt62YoutxM" --Message-Id: <200705181006.49860.ian@brightstareng.com> --X-Virus-Scanned: by amavisd-new at brightstareng.com --Status: R --X-Status: NT --X-KMail-EncryptionState: --X-KMail-SignatureState: --X-KMail-MDN-Sent: -- ----Boundary-00=_5LbTGmt62YoutxM --Content-Type: text/plain; -- charset="iso-8859-15" --Content-Transfer-Encoding: 7bit --Content-Disposition: inline -- --David, Andrea, -- --On Friday 18 May 2007 08:34, you wrote: --> Yea team. With this fix in place (I put it in the wrong place --> at first) I can now mount and ls the Yaffs partition without --> an error messages! -- --Good news! -- --Attached is a newer yaffs_mtdif1.c with a bandaid to help the --2.6.18 and 2.6.19 versions of MTD not trip on the oob read. --See the LINUX_VERSION_CODE conditional in --nandmtd1_ReadChunkWithTagsFromNAND. -- ---imcd -- ----Boundary-00=_5LbTGmt62YoutxM --Content-Type: text/x-csrc; -- charset="iso-8859-15"; -- name="yaffs_mtdif1.c" --Content-Transfer-Encoding: 7bit --Content-Disposition: attachment; -- filename="yaffs_mtdif1.c" -- --/* -- * YAFFS: Yet another FFS. A NAND-flash specific file system. -- * yaffs_mtdif1.c NAND mtd interface functions for small-page NAND. -- * -- * Copyright (C) 2002 Aleph One Ltd. -- * for Toby Churchill Ltd and Brightstar Engineering -- * -- * This program is free software; you can redistribute it and/or modify -- * it under the terms of the GNU General Public License version 2 as -- * published by the Free Software Foundation. -- */ -- --/* -- * This module provides the interface between yaffs_nand.c and the -- * MTD API. This version is used when the MTD interface supports the -- * 'mtd_oob_ops' style calls to read_oob and write_oob, circa 2.6.17, -- * and we have small-page NAND device. -- * -- * These functions are invoked via function pointers in yaffs_nand.c. -- * This replaces functionality provided by functions in yaffs_mtdif.c -- * and the yaffs_TagsCompatability functions in yaffs_tagscompat.c that are -- * called in yaffs_mtdif.c when the function pointers are NULL. -- * We assume the MTD layer is performing ECC (useNANDECC is true). -- */ -- --#include "yportenv.h" --#include "yaffs_guts.h" --#include "yaffs_packedtags1.h" --#include "yaffs_tagscompat.h" // for yaffs_CalcTagsECC -- --#include "linux/kernel.h" --#include "linux/version.h" --#include "linux/types.h" --#include "linux/mtd/mtd.h" -- --/* Don't compile this module if we don't have MTD's mtd_oob_ops interface */ --#if (LINUX_VERSION_CODE > KERNEL_VERSION(2,6,17)) -- --const char *yaffs_mtdif1_c_version = "$Id$"; -- --#ifndef CONFIG_YAFFS_9BYTE_TAGS --# define YTAG1_SIZE 8 --#else --# define YTAG1_SIZE 9 --#endif -- --#if 0 --/* Use the following nand_ecclayout with MTD when using -- * CONFIG_YAFFS_9BYTE_TAGS and the older on-NAND tags layout. -- * If you have existing Yaffs images and the byte order differs from this, -- * adjust 'oobfree' to match your existing Yaffs data. -- * -- * This nand_ecclayout scatters/gathers to/from the old-yaffs layout with the -- * pageStatus byte (at NAND spare offset 4) scattered/gathered from/to -- * the 9th byte. -- * -- * Old-style on-NAND format: T0,T1,T2,T3,P,B,T4,T5,E0,E1,E2,T6,T7,E3,E4,E5 -- * We have/need PackedTags1 plus pageStatus: T0,T1,T2,T3,T4,T5,T6,T7,P -- * where Tn are the tag bytes, En are MTD's ECC bytes, P is the pageStatus -- * byte and B is the small-page bad-block indicator byte. -- */ --static struct nand_ecclayout nand_oob_16 = { -- .eccbytes = 6, -- .eccpos = { 8, 9, 10, 13, 14, 15 }, -- .oobavail = 9, -- .oobfree = { { 0, 4 }, { 6, 2 }, { 11, 2 }, { 4, 1 } } --}; --#endif -- --/* Write a chunk (page) of data to NAND. -- * -- * Caller always provides ExtendedTags data which are converted to a more -- * compact (packed) form for storage in NAND. A mini-ECC runs over the -- * contents of the tags meta-data; used to valid the tags when read. -- * -- * - Pack ExtendedTags to PackedTags1 form -- * - Compute mini-ECC for PackedTags1 -- * - Write data and packed tags to NAND. -- * -- * Note: Due to the use of the PackedTags1 meta-data which does not include -- * a full sequence number (as found in the larger PackedTags2 form) it is -- * necessary for Yaffs to re-write a chunk/page (just once) to mark it as -- * discarded and dirty. This is not ideal: newer NAND parts are supposed -- * to be written just once. When Yaffs performs this operation, this -- * function is called with a NULL data pointer -- calling MTD write_oob -- * without data is valid usage (2.6.17). -- * -- * Any underlying MTD error results in YAFFS_FAIL. -- * Returns YAFFS_OK or YAFFS_FAIL. -- */ --int nandmtd1_WriteChunkWithTagsToNAND(yaffs_Device *dev, -- int chunkInNAND, const __u8 * data, const yaffs_ExtendedTags * etags) --{ -- struct mtd_info * mtd = dev->genericDevice; -- int chunkBytes = dev->nDataBytesPerChunk; -- loff_t addr = ((loff_t)chunkInNAND) * chunkBytes; -- struct mtd_oob_ops ops; -- yaffs_PackedTags1 pt1; -- int retval; -- -- /* we assume that PackedTags1 and yaffs_Tags are compatible */ -- compile_time_assertion(sizeof(yaffs_PackedTags1) == 12); -- compile_time_assertion(sizeof(yaffs_Tags) == 8); -- -- yaffs_PackTags1(&pt1, etags); -- yaffs_CalcTagsECC((yaffs_Tags *)&pt1); -- -- /* When deleting a chunk, the upper layer provides only skeletal -- * etags, one with chunkDeleted set. However, we need to update the -- * tags, not erase them completely. So we use the NAND write property -- * that only zeroed-bits stick and set tag bytes to all-ones and -- * zero just the (not) deleted bit. -- */ --#ifndef CONFIG_YAFFS_9BYTE_TAGS -- if (etags->chunkDeleted) { -- memset(&pt1, 0xff, 8); -- /* clear delete status bit to indicate deleted */ -- pt1.deleted = 0; -- } --#else -- ((__u8 *)&pt1)[8] = 0xff; -- if (etags->chunkDeleted) { -- memset(&pt1, 0xff, 8); -- /* zero pageStatus byte to indicate deleted */ -- ((__u8 *)&pt1)[8] = 0; -- } --#endif -- -- memset(&ops, 0, sizeof(ops)); -- ops.mode = MTD_OOB_AUTO; -- ops.len = (data) ? chunkBytes : 0; -- ops.ooblen = YTAG1_SIZE; -- ops.datbuf = (__u8 *)data; -- ops.oobbuf = (__u8 *)&pt1; -- -- retval = mtd->write_oob(mtd, addr, &ops); -- if (retval) { -- yaffs_trace(YAFFS_TRACE_MTD, -- "write_oob failed, chunk %d, mtd error %d\n", -- chunkInNAND, retval); -- } -- return retval ? YAFFS_FAIL : YAFFS_OK; --} -- --/* Return with empty ExtendedTags but add eccResult. -- */ --static int rettags(yaffs_ExtendedTags * etags, int eccResult, int retval) --{ -- if (etags) { -- memset(etags, 0, sizeof(*etags)); -- etags->eccResult = eccResult; -- } -- return retval; --} -- --/* Read a chunk (page) from NAND. -- * -- * Caller expects ExtendedTags data to be usable even on error; that is, -- * all members except eccResult and blockBad are zeroed. -- * -- * - Check ECC results for data (if applicable) -- * - Check for blank/erased block (return empty ExtendedTags if blank) -- * - Check the PackedTags1 mini-ECC (correct if necessary/possible) -- * - Convert PackedTags1 to ExtendedTags -- * - Update eccResult and blockBad members to refect state. -- * -- * Returns YAFFS_OK or YAFFS_FAIL. -- */ --int nandmtd1_ReadChunkWithTagsFromNAND(yaffs_Device *dev, -- int chunkInNAND, __u8 * data, yaffs_ExtendedTags * etags) --{ -- struct mtd_info * mtd = dev->genericDevice; -- int chunkBytes = dev->nDataBytesPerChunk; -- loff_t addr = ((loff_t)chunkInNAND) * chunkBytes; -- int eccres = YAFFS_ECC_RESULT_NO_ERROR; -- struct mtd_oob_ops ops; -- yaffs_PackedTags1 pt1; -- int retval; -- int deleted; -- -- memset(&ops, 0, sizeof(ops)); -- ops.mode = MTD_OOB_AUTO; -- ops.len = (data) ? chunkBytes : 0; -- ops.ooblen = YTAG1_SIZE; -- ops.datbuf = data; -- ops.oobbuf = (__u8 *)&pt1; -- --#if (LINUX_VERSION_CODE < KERNEL_VERSION(2,6,20)) -- /* In MTD 2.6.18 to 2.6.19 nand_base.c:nand_do_read_oob() has a bug; -- * help it out with ops.len = ops.ooblen when ops.datbuf == NULL. -- */ -- ops.len = (ops.datbuf) ? ops.len : ops.ooblen; --#endif -- /* Read page and oob using MTD. -- * Check status and determine ECC result. -- */ -- retval = mtd->read_oob(mtd, addr, &ops); -- if (retval) { -- yaffs_trace(YAFFS_TRACE_MTD, -- "read_oob failed, chunk %d, mtd error %d\n", -- chunkInNAND, retval); -- } -- -- switch (retval) { -- case 0: -- /* no error */ -- break; -- -- case -EUCLEAN: -- /* MTD's ECC fixed the data */ -- eccres = YAFFS_ECC_RESULT_FIXED; -- dev->eccFixed++; -- break; -- -- case -EBADMSG: -- /* MTD's ECC could not fix the data */ -- dev->eccUnfixed++; -- /* fall into... */ -- default: -- rettags(etags, YAFFS_ECC_RESULT_UNFIXED, 0); -- etags->blockBad = (mtd->block_isbad)(mtd, addr); -- return YAFFS_FAIL; -- } -- -- /* Check for a blank/erased chunk. -- */ -- if (yaffs_CheckFF((__u8 *)&pt1, 8)) { -- /* when blank, upper layers want eccResult to be <= NO_ERROR */ -- return rettags(etags, YAFFS_ECC_RESULT_NO_ERROR, YAFFS_OK); -- } -- --#ifndef CONFIG_YAFFS_9BYTE_TAGS -- /* Read deleted status (bit) then return it to it's non-deleted -- * state before performing tags mini-ECC check. pt1.deleted is -- * inverted. -- */ -- deleted = !pt1.deleted; -- pt1.deleted = 1; --#else -- (void) deleted; /* not used */ --#endif -- -- /* Check the packed tags mini-ECC and correct if necessary/possible. -- */ -- retval = yaffs_CheckECCOnTags((yaffs_Tags *)&pt1); -- switch (retval) { -- case 0: -- /* no tags error, use MTD result */ -- break; -- case 1: -- /* recovered tags-ECC error */ -- dev->tagsEccFixed++; -- eccres = YAFFS_ECC_RESULT_FIXED; -- break; -- default: -- /* unrecovered tags-ECC error */ -- dev->tagsEccUnfixed++; -- return rettags(etags, YAFFS_ECC_RESULT_UNFIXED, YAFFS_FAIL); -- } -- -- /* Unpack the tags to extended form and set ECC result. -- * [set shouldBeFF just to keep yaffs_UnpackTags1 happy] -- */ -- pt1.shouldBeFF = 0xFFFFFFFF; -- yaffs_UnpackTags1(etags, &pt1); -- etags->eccResult = eccres; -- -- /* Set deleted state. -- */ --#ifndef CONFIG_YAFFS_9BYTE_TAGS -- etags->chunkDeleted = deleted; --#else -- etags->chunkDeleted = (yaffs_CountBits(((__u8 *)&pt1)[8]) < 7); --#endif -- return YAFFS_OK; --} -- --/* Mark a block bad. -- * -- * This is a persistant state. -- * Use of this function should be rare. -- * -- * Returns YAFFS_OK or YAFFS_FAIL. -- */ --int nandmtd1_MarkNANDBlockBad(struct yaffs_DeviceStruct *dev, int blockNo) --{ -- struct mtd_info * mtd = dev->genericDevice; -- int blocksize = dev->nChunksPerBlock * dev->nDataBytesPerChunk; -- int retval; -- -- yaffs_trace(YAFFS_TRACE_BAD_BLOCKS, "marking block %d bad", blockNo); -- -- retval = mtd->block_markbad(mtd, (loff_t)blocksize * blockNo); -- return (retval) ? YAFFS_FAIL : YAFFS_OK; --} -- --/* Check any MTD prerequists. -- * -- * Returns YAFFS_OK or YAFFS_FAIL. -- */ --static int nandmtd1_TestPrerequists(struct mtd_info * mtd) --{ -- /* 2.6.18 has mtd->ecclayout->oobavail */ -- /* 2.6.21 has mtd->ecclayout->oobavail and mtd->oobavail */ -- int oobavail = mtd->ecclayout->oobavail; -- -- if (oobavail < YTAG1_SIZE) { -- yaffs_trace(YAFFS_TRACE_ERROR, -- "mtd device has only %d bytes for tags, need %d", -- oobavail, YTAG1_SIZE); -- return YAFFS_FAIL; -- } -- return YAFFS_OK; --} -- --/* Query for the current state of a specific block. -- * -- * Examine the tags of the first chunk of the block and return the state: -- * - YAFFS_BLOCK_STATE_DEAD, the block is marked bad -- * - YAFFS_BLOCK_STATE_NEEDS_SCANNING, the block is in use -- * - YAFFS_BLOCK_STATE_EMPTY, the block is clean -- * -- * Always returns YAFFS_OK. -- */ --int nandmtd1_QueryNANDBlock(struct yaffs_DeviceStruct *dev, int blockNo, -- yaffs_BlockState * pState, int *pSequenceNumber) --{ -- struct mtd_info * mtd = dev->genericDevice; -- int chunkNo = blockNo * dev->nChunksPerBlock; -- yaffs_ExtendedTags etags; -- int state = YAFFS_BLOCK_STATE_DEAD; -- int seqnum = 0; -- int retval; -- -- /* We don't yet have a good place to test for MTD config prerequists. -- * Do it here as we are called during the initial scan. -- */ -- if (nandmtd1_TestPrerequists(mtd) != YAFFS_OK) { -- return YAFFS_FAIL; -- } -- -- retval = nandmtd1_ReadChunkWithTagsFromNAND(dev, chunkNo, NULL, &etags); -- if (etags.blockBad) { -- yaffs_trace(YAFFS_TRACE_BAD_BLOCKS, -- "block %d is marked bad", blockNo); -- state = YAFFS_BLOCK_STATE_DEAD; -- } -- else if (etags.chunkUsed) { -- state = YAFFS_BLOCK_STATE_NEEDS_SCANNING; -- seqnum = etags.sequenceNumber; -- } -- else { -- state = YAFFS_BLOCK_STATE_EMPTY; -- } -- -- *pState = state; -- *pSequenceNumber = seqnum; -- -- /* query always succeeds */ -- return YAFFS_OK; --} -- --#endif /*KERNEL_VERSION*/ -- ----Boundary-00=_5LbTGmt62YoutxM-- -- -- -- ---- a/fs/yaffs2/yaffs_mtdif1.h -+++ b/fs/yaffs2/yaffs_mtdif1.h -@@ -1,7 +1,7 @@ - /* - * YAFFS: Yet another Flash File System. A NAND-flash specific file system. - * -- * Copyright (C) 2002-2007 Aleph One Ltd. -+ * Copyright (C) 2002-2010 Aleph One Ltd. - * for Toby Churchill Ltd and Brightstar Engineering - * - * This program is free software; you can redistribute it and/or modify -@@ -14,15 +14,15 @@ - #ifndef __YAFFS_MTDIF1_H__ - #define __YAFFS_MTDIF1_H__ - --int nandmtd1_WriteChunkWithTagsToNAND(yaffs_Device *dev, int chunkInNAND, -- const __u8 *data, const yaffs_ExtendedTags *tags); -+int nandmtd1_WriteChunkWithTagsToNAND(yaffs_dev_t *dev, int nand_chunk, -+ const __u8 *data, const yaffs_ext_tags *tags); - --int nandmtd1_ReadChunkWithTagsFromNAND(yaffs_Device *dev, int chunkInNAND, -- __u8 *data, yaffs_ExtendedTags *tags); -+int nandmtd1_ReadChunkWithTagsFromNAND(yaffs_dev_t *dev, int nand_chunk, -+ __u8 *data, yaffs_ext_tags *tags); - --int nandmtd1_MarkNANDBlockBad(struct yaffs_DeviceStruct *dev, int blockNo); -+int nandmtd1_MarkNANDBlockBad(struct yaffs_dev_s *dev, int block_no); - --int nandmtd1_QueryNANDBlock(struct yaffs_DeviceStruct *dev, int blockNo, -- yaffs_BlockState *state, __u32 *sequenceNumber); -+int nandmtd1_QueryNANDBlock(struct yaffs_dev_s *dev, int block_no, -+ yaffs_block_state_t *state, __u32 *seq_number); - - #endif ---- a/fs/yaffs2/yaffs_mtdif2.c -+++ b/fs/yaffs2/yaffs_mtdif2.c -@@ -1,7 +1,7 @@ - /* - * YAFFS: Yet Another Flash File System. A NAND-flash specific file system. - * -- * Copyright (C) 2002-2007 Aleph One Ltd. -+ * Copyright (C) 2002-2010 Aleph One Ltd. - * for Toby Churchill Ltd and Brightstar Engineering - * - * Created by Charles Manning -@@ -13,11 +13,8 @@ - - /* mtd interface for YAFFS2 */ - --const char *yaffs_mtdif2_c_version = -- "$Id: yaffs_mtdif2.c,v 1.23 2009-03-06 17:20:53 wookey Exp $"; -- - #include "yportenv.h" -- -+#include "yaffs_trace.h" - - #include "yaffs_mtdif2.h" - -@@ -27,15 +24,17 @@ const char *yaffs_mtdif2_c_version = - - #include "yaffs_packedtags2.h" - -+#include "yaffs_linux.h" -+ - /* NB For use with inband tags.... - * We assume that the data buffer is of size totalBytersPerChunk so that we can also - * use it to load the tags. - */ --int nandmtd2_WriteChunkWithTagsToNAND(yaffs_Device *dev, int chunkInNAND, -+int nandmtd2_WriteChunkWithTagsToNAND(yaffs_dev_t *dev, int nand_chunk, - const __u8 *data, -- const yaffs_ExtendedTags *tags) -+ const yaffs_ext_tags *tags) - { -- struct mtd_info *mtd = (struct mtd_info *)(dev->genericDevice); -+ struct mtd_info *mtd = yaffs_dev_to_mtd(dev); - #if (MTD_VERSION_CODE > MTD_VERSION(2, 6, 17)) - struct mtd_oob_ops ops; - #else -@@ -47,13 +46,16 @@ int nandmtd2_WriteChunkWithTagsToNAND(ya - - yaffs_PackedTags2 pt; - -+ int packed_tags_size = dev->param.no_tags_ecc ? sizeof(pt.t) : sizeof(pt); -+ void * packed_tags_ptr = dev->param.no_tags_ecc ? (void *) &pt.t : (void *)&pt; -+ - T(YAFFS_TRACE_MTD, - (TSTR - ("nandmtd2_WriteChunkWithTagsToNAND chunk %d data %p tags %p" -- TENDSTR), chunkInNAND, data, tags)); -+ TENDSTR), nand_chunk, data, tags)); - - -- addr = ((loff_t) chunkInNAND) * dev->totalBytesPerChunk; -+ addr = ((loff_t) nand_chunk) * dev->param.total_bytes_per_chunk; - - /* For yaffs2 writing there must be both data and tags. - * If we're using inband tags, then the tags are stuffed into -@@ -61,30 +63,30 @@ int nandmtd2_WriteChunkWithTagsToNAND(ya - */ - if (!data || !tags) - BUG(); -- else if (dev->inbandTags) { -+ else if (dev->param.inband_tags) { - yaffs_PackedTags2TagsPart *pt2tp; -- pt2tp = (yaffs_PackedTags2TagsPart *)(data + dev->nDataBytesPerChunk); -+ pt2tp = (yaffs_PackedTags2TagsPart *)(data + dev->data_bytes_per_chunk); - yaffs_PackTags2TagsPart(pt2tp, tags); - } else -- yaffs_PackTags2(&pt, tags); -+ yaffs_PackTags2(&pt, tags, !dev->param.no_tags_ecc); - - #if (LINUX_VERSION_CODE > KERNEL_VERSION(2, 6, 17)) - ops.mode = MTD_OOB_AUTO; -- ops.ooblen = (dev->inbandTags) ? 0 : sizeof(pt); -- ops.len = dev->totalBytesPerChunk; -+ ops.ooblen = (dev->param.inband_tags) ? 0 : packed_tags_size; -+ ops.len = dev->param.total_bytes_per_chunk; - ops.ooboffs = 0; - ops.datbuf = (__u8 *)data; -- ops.oobbuf = (dev->inbandTags) ? NULL : (void *)&pt; -+ ops.oobbuf = (dev->param.inband_tags) ? NULL : packed_tags_ptr; - retval = mtd->write_oob(mtd, addr, &ops); - - #else -- if (!dev->inbandTags) { -+ if (!dev->param.inband_tags) { - retval = -- mtd->write_ecc(mtd, addr, dev->nDataBytesPerChunk, -- &dummy, data, (__u8 *) &pt, NULL); -+ mtd->write_ecc(mtd, addr, dev->data_bytes_per_chunk, -+ &dummy, data, (__u8 *) packed_tags_ptr, NULL); - } else { - retval = -- mtd->write(mtd, addr, dev->totalBytesPerChunk, &dummy, -+ mtd->write(mtd, addr, dev->param.total_bytes_per_chunk, &dummy, - data); - } - #endif -@@ -95,10 +97,10 @@ int nandmtd2_WriteChunkWithTagsToNAND(ya - return YAFFS_FAIL; - } - --int nandmtd2_ReadChunkWithTagsFromNAND(yaffs_Device *dev, int chunkInNAND, -- __u8 *data, yaffs_ExtendedTags *tags) -+int nandmtd2_ReadChunkWithTagsFromNAND(yaffs_dev_t *dev, int nand_chunk, -+ __u8 *data, yaffs_ext_tags *tags) - { -- struct mtd_info *mtd = (struct mtd_info *)(dev->genericDevice); -+ struct mtd_info *mtd = yaffs_dev_to_mtd(dev); - #if (MTD_VERSION_CODE > MTD_VERSION(2, 6, 17)) - struct mtd_oob_ops ops; - #endif -@@ -106,20 +108,23 @@ int nandmtd2_ReadChunkWithTagsFromNAND(y - int retval = 0; - int localData = 0; - -- loff_t addr = ((loff_t) chunkInNAND) * dev->totalBytesPerChunk; -+ loff_t addr = ((loff_t) nand_chunk) * dev->param.total_bytes_per_chunk; - - yaffs_PackedTags2 pt; - -+ int packed_tags_size = dev->param.no_tags_ecc ? sizeof(pt.t) : sizeof(pt); -+ void * packed_tags_ptr = dev->param.no_tags_ecc ? (void *) &pt.t: (void *)&pt; -+ - T(YAFFS_TRACE_MTD, - (TSTR - ("nandmtd2_ReadChunkWithTagsFromNAND chunk %d data %p tags %p" -- TENDSTR), chunkInNAND, data, tags)); -+ TENDSTR), nand_chunk, data, tags)); - -- if (dev->inbandTags) { -+ if (dev->param.inband_tags) { - - if (!data) { - localData = 1; -- data = yaffs_GetTempBuffer(dev, __LINE__); -+ data = yaffs_get_temp_buffer(dev, __LINE__); - } - - -@@ -127,30 +132,30 @@ int nandmtd2_ReadChunkWithTagsFromNAND(y - - - #if (LINUX_VERSION_CODE > KERNEL_VERSION(2, 6, 17)) -- if (dev->inbandTags || (data && !tags)) -- retval = mtd->read(mtd, addr, dev->totalBytesPerChunk, -+ if (dev->param.inband_tags || (data && !tags)) -+ retval = mtd->read(mtd, addr, dev->param.total_bytes_per_chunk, - &dummy, data); - else if (tags) { - ops.mode = MTD_OOB_AUTO; -- ops.ooblen = sizeof(pt); -- ops.len = data ? dev->nDataBytesPerChunk : sizeof(pt); -+ ops.ooblen = packed_tags_size; -+ ops.len = data ? dev->data_bytes_per_chunk : packed_tags_size; - ops.ooboffs = 0; - ops.datbuf = data; -- ops.oobbuf = dev->spareBuffer; -+ ops.oobbuf = yaffs_dev_to_lc(dev)->spareBuffer; - retval = mtd->read_oob(mtd, addr, &ops); - } - #else -- if (!dev->inbandTags && data && tags) { -+ if (!dev->param.inband_tags && data && tags) { - -- retval = mtd->read_ecc(mtd, addr, dev->nDataBytesPerChunk, -+ retval = mtd->read_ecc(mtd, addr, dev->data_bytes_per_chunk, - &dummy, data, dev->spareBuffer, - NULL); - } else { - if (data) - retval = -- mtd->read(mtd, addr, dev->nDataBytesPerChunk, &dummy, -+ mtd->read(mtd, addr, dev->data_bytes_per_chunk, &dummy, - data); -- if (!dev->inbandTags && tags) -+ if (!dev->param.inband_tags && tags) - retval = - mtd->read_oob(mtd, addr, mtd->oobsize, &dummy, - dev->spareBuffer); -@@ -158,41 +163,47 @@ int nandmtd2_ReadChunkWithTagsFromNAND(y - #endif - - -- if (dev->inbandTags) { -+ if (dev->param.inband_tags) { - if (tags) { - yaffs_PackedTags2TagsPart *pt2tp; -- pt2tp = (yaffs_PackedTags2TagsPart *)&data[dev->nDataBytesPerChunk]; -- yaffs_UnpackTags2TagsPart(tags, pt2tp); -+ pt2tp = (yaffs_PackedTags2TagsPart *)&data[dev->data_bytes_per_chunk]; -+ yaffs_unpack_tags2tags_part(tags, pt2tp); - } - } else { - if (tags) { -- memcpy(&pt, dev->spareBuffer, sizeof(pt)); -- yaffs_UnpackTags2(tags, &pt); -+ memcpy(packed_tags_ptr, yaffs_dev_to_lc(dev)->spareBuffer, packed_tags_size); -+ yaffs_unpack_tags2(tags, &pt, !dev->param.no_tags_ecc); - } - } - - if (localData) -- yaffs_ReleaseTempBuffer(dev, data, __LINE__); -+ yaffs_release_temp_buffer(dev, data, __LINE__); - -- if (tags && retval == -EBADMSG && tags->eccResult == YAFFS_ECC_RESULT_NO_ERROR) -- tags->eccResult = YAFFS_ECC_RESULT_UNFIXED; -+ if (tags && retval == -EBADMSG && tags->ecc_result == YAFFS_ECC_RESULT_NO_ERROR) { -+ tags->ecc_result = YAFFS_ECC_RESULT_UNFIXED; -+ dev->n_ecc_unfixed++; -+ } -+ if(tags && retval == -EUCLEAN && tags->ecc_result == YAFFS_ECC_RESULT_NO_ERROR) { -+ tags->ecc_result = YAFFS_ECC_RESULT_FIXED; -+ dev->n_ecc_fixed++; -+ } - if (retval == 0) - return YAFFS_OK; - else - return YAFFS_FAIL; - } - --int nandmtd2_MarkNANDBlockBad(struct yaffs_DeviceStruct *dev, int blockNo) -+int nandmtd2_MarkNANDBlockBad(struct yaffs_dev_s *dev, int block_no) - { -- struct mtd_info *mtd = (struct mtd_info *)(dev->genericDevice); -+ struct mtd_info *mtd = yaffs_dev_to_mtd(dev); - int retval; - T(YAFFS_TRACE_MTD, -- (TSTR("nandmtd2_MarkNANDBlockBad %d" TENDSTR), blockNo)); -+ (TSTR("nandmtd2_MarkNANDBlockBad %d" TENDSTR), block_no)); - - retval = - mtd->block_markbad(mtd, -- blockNo * dev->nChunksPerBlock * -- dev->totalBytesPerChunk); -+ block_no * dev->param.chunks_per_block * -+ dev->param.total_bytes_per_chunk); - - if (retval == 0) - return YAFFS_OK; -@@ -201,41 +212,41 @@ int nandmtd2_MarkNANDBlockBad(struct yaf - - } - --int nandmtd2_QueryNANDBlock(struct yaffs_DeviceStruct *dev, int blockNo, -- yaffs_BlockState *state, __u32 *sequenceNumber) -+int nandmtd2_QueryNANDBlock(struct yaffs_dev_s *dev, int block_no, -+ yaffs_block_state_t *state, __u32 *seq_number) - { -- struct mtd_info *mtd = (struct mtd_info *)(dev->genericDevice); -+ struct mtd_info *mtd = yaffs_dev_to_mtd(dev); - int retval; - - T(YAFFS_TRACE_MTD, -- (TSTR("nandmtd2_QueryNANDBlock %d" TENDSTR), blockNo)); -+ (TSTR("nandmtd2_QueryNANDBlock %d" TENDSTR), block_no)); - retval = - mtd->block_isbad(mtd, -- blockNo * dev->nChunksPerBlock * -- dev->totalBytesPerChunk); -+ block_no * dev->param.chunks_per_block * -+ dev->param.total_bytes_per_chunk); - - if (retval) { - T(YAFFS_TRACE_MTD, (TSTR("block is bad" TENDSTR))); - - *state = YAFFS_BLOCK_STATE_DEAD; -- *sequenceNumber = 0; -+ *seq_number = 0; - } else { -- yaffs_ExtendedTags t; -+ yaffs_ext_tags t; - nandmtd2_ReadChunkWithTagsFromNAND(dev, -- blockNo * -- dev->nChunksPerBlock, NULL, -+ block_no * -+ dev->param.chunks_per_block, NULL, - &t); - -- if (t.chunkUsed) { -- *sequenceNumber = t.sequenceNumber; -+ if (t.chunk_used) { -+ *seq_number = t.seq_number; - *state = YAFFS_BLOCK_STATE_NEEDS_SCANNING; - } else { -- *sequenceNumber = 0; -+ *seq_number = 0; - *state = YAFFS_BLOCK_STATE_EMPTY; - } - } - T(YAFFS_TRACE_MTD, -- (TSTR("block is bad seq %d state %d" TENDSTR), *sequenceNumber, -+ (TSTR("block is bad seq %d state %d" TENDSTR), *seq_number, - *state)); - - if (retval == 0) ---- a/fs/yaffs2/yaffs_mtdif2.h -+++ b/fs/yaffs2/yaffs_mtdif2.h -@@ -1,7 +1,7 @@ - /* - * YAFFS: Yet another Flash File System . A NAND-flash specific file system. - * -- * Copyright (C) 2002-2007 Aleph One Ltd. -+ * Copyright (C) 2002-2010 Aleph One Ltd. - * for Toby Churchill Ltd and Brightstar Engineering - * - * Created by Charles Manning -@@ -17,13 +17,13 @@ - #define __YAFFS_MTDIF2_H__ - - #include "yaffs_guts.h" --int nandmtd2_WriteChunkWithTagsToNAND(yaffs_Device *dev, int chunkInNAND, -+int nandmtd2_WriteChunkWithTagsToNAND(yaffs_dev_t *dev, int nand_chunk, - const __u8 *data, -- const yaffs_ExtendedTags *tags); --int nandmtd2_ReadChunkWithTagsFromNAND(yaffs_Device *dev, int chunkInNAND, -- __u8 *data, yaffs_ExtendedTags *tags); --int nandmtd2_MarkNANDBlockBad(struct yaffs_DeviceStruct *dev, int blockNo); --int nandmtd2_QueryNANDBlock(struct yaffs_DeviceStruct *dev, int blockNo, -- yaffs_BlockState *state, __u32 *sequenceNumber); -+ const yaffs_ext_tags *tags); -+int nandmtd2_ReadChunkWithTagsFromNAND(yaffs_dev_t *dev, int nand_chunk, -+ __u8 *data, yaffs_ext_tags *tags); -+int nandmtd2_MarkNANDBlockBad(struct yaffs_dev_s *dev, int block_no); -+int nandmtd2_QueryNANDBlock(struct yaffs_dev_s *dev, int block_no, -+ yaffs_block_state_t *state, __u32 *seq_number); - - #endif ---- a/fs/yaffs2/yaffs_mtdif.c -+++ b/fs/yaffs2/yaffs_mtdif.c -@@ -1,7 +1,7 @@ - /* - * YAFFS: Yet Another Flash File System. A NAND-flash specific file system. - * -- * Copyright (C) 2002-2007 Aleph One Ltd. -+ * Copyright (C) 2002-2010 Aleph One Ltd. - * for Toby Churchill Ltd and Brightstar Engineering - * - * Created by Charles Manning -@@ -11,9 +11,6 @@ - * published by the Free Software Foundation. - */ - --const char *yaffs_mtdif_c_version = -- "$Id: yaffs_mtdif.c,v 1.22 2009-03-06 17:20:51 wookey Exp $"; -- - #include "yportenv.h" - - -@@ -24,208 +21,26 @@ const char *yaffs_mtdif_c_version = - #include "linux/time.h" - #include "linux/mtd/nand.h" - --#if (MTD_VERSION_CODE < MTD_VERSION(2, 6, 18)) --static struct nand_oobinfo yaffs_oobinfo = { -- .useecc = 1, -- .eccbytes = 6, -- .eccpos = {8, 9, 10, 13, 14, 15} --}; -- --static struct nand_oobinfo yaffs_noeccinfo = { -- .useecc = 0, --}; --#endif -- --#if (MTD_VERSION_CODE > MTD_VERSION(2, 6, 17)) --static inline void translate_spare2oob(const yaffs_Spare *spare, __u8 *oob) --{ -- oob[0] = spare->tagByte0; -- oob[1] = spare->tagByte1; -- oob[2] = spare->tagByte2; -- oob[3] = spare->tagByte3; -- oob[4] = spare->tagByte4; -- oob[5] = spare->tagByte5 & 0x3f; -- oob[5] |= spare->blockStatus == 'Y' ? 0 : 0x80; -- oob[5] |= spare->pageStatus == 0 ? 0 : 0x40; -- oob[6] = spare->tagByte6; -- oob[7] = spare->tagByte7; --} -- --static inline void translate_oob2spare(yaffs_Spare *spare, __u8 *oob) --{ -- struct yaffs_NANDSpare *nspare = (struct yaffs_NANDSpare *)spare; -- spare->tagByte0 = oob[0]; -- spare->tagByte1 = oob[1]; -- spare->tagByte2 = oob[2]; -- spare->tagByte3 = oob[3]; -- spare->tagByte4 = oob[4]; -- spare->tagByte5 = oob[5] == 0xff ? 0xff : oob[5] & 0x3f; -- spare->blockStatus = oob[5] & 0x80 ? 0xff : 'Y'; -- spare->pageStatus = oob[5] & 0x40 ? 0xff : 0; -- spare->ecc1[0] = spare->ecc1[1] = spare->ecc1[2] = 0xff; -- spare->tagByte6 = oob[6]; -- spare->tagByte7 = oob[7]; -- spare->ecc2[0] = spare->ecc2[1] = spare->ecc2[2] = 0xff; -- -- nspare->eccres1 = nspare->eccres2 = 0; /* FIXME */ --} --#endif -- --int nandmtd_WriteChunkToNAND(yaffs_Device *dev, int chunkInNAND, -- const __u8 *data, const yaffs_Spare *spare) --{ -- struct mtd_info *mtd = (struct mtd_info *)(dev->genericDevice); --#if (MTD_VERSION_CODE > MTD_VERSION(2, 6, 17)) -- struct mtd_oob_ops ops; --#endif -- size_t dummy; -- int retval = 0; -- -- loff_t addr = ((loff_t) chunkInNAND) * dev->nDataBytesPerChunk; --#if (MTD_VERSION_CODE > MTD_VERSION(2, 6, 17)) -- __u8 spareAsBytes[8]; /* OOB */ -- -- if (data && !spare) -- retval = mtd->write(mtd, addr, dev->nDataBytesPerChunk, -- &dummy, data); -- else if (spare) { -- if (dev->useNANDECC) { -- translate_spare2oob(spare, spareAsBytes); -- ops.mode = MTD_OOB_AUTO; -- ops.ooblen = 8; /* temp hack */ -- } else { -- ops.mode = MTD_OOB_RAW; -- ops.ooblen = YAFFS_BYTES_PER_SPARE; -- } -- ops.len = data ? dev->nDataBytesPerChunk : ops.ooblen; -- ops.datbuf = (u8 *)data; -- ops.ooboffs = 0; -- ops.oobbuf = spareAsBytes; -- retval = mtd->write_oob(mtd, addr, &ops); -- } --#else -- __u8 *spareAsBytes = (__u8 *) spare; -- -- if (data && spare) { -- if (dev->useNANDECC) -- retval = -- mtd->write_ecc(mtd, addr, dev->nDataBytesPerChunk, -- &dummy, data, spareAsBytes, -- &yaffs_oobinfo); -- else -- retval = -- mtd->write_ecc(mtd, addr, dev->nDataBytesPerChunk, -- &dummy, data, spareAsBytes, -- &yaffs_noeccinfo); -- } else { -- if (data) -- retval = -- mtd->write(mtd, addr, dev->nDataBytesPerChunk, &dummy, -- data); -- if (spare) -- retval = -- mtd->write_oob(mtd, addr, YAFFS_BYTES_PER_SPARE, -- &dummy, spareAsBytes); -- } --#endif -- -- if (retval == 0) -- return YAFFS_OK; -- else -- return YAFFS_FAIL; --} -- --int nandmtd_ReadChunkFromNAND(yaffs_Device *dev, int chunkInNAND, __u8 *data, -- yaffs_Spare *spare) --{ -- struct mtd_info *mtd = (struct mtd_info *)(dev->genericDevice); --#if (MTD_VERSION_CODE > MTD_VERSION(2, 6, 17)) -- struct mtd_oob_ops ops; --#endif -- size_t dummy; -- int retval = 0; -+#include "yaffs_linux.h" - -- loff_t addr = ((loff_t) chunkInNAND) * dev->nDataBytesPerChunk; --#if (MTD_VERSION_CODE > MTD_VERSION(2, 6, 17)) -- __u8 spareAsBytes[8]; /* OOB */ -- -- if (data && !spare) -- retval = mtd->read(mtd, addr, dev->nDataBytesPerChunk, -- &dummy, data); -- else if (spare) { -- if (dev->useNANDECC) { -- ops.mode = MTD_OOB_AUTO; -- ops.ooblen = 8; /* temp hack */ -- } else { -- ops.mode = MTD_OOB_RAW; -- ops.ooblen = YAFFS_BYTES_PER_SPARE; -- } -- ops.len = data ? dev->nDataBytesPerChunk : ops.ooblen; -- ops.datbuf = data; -- ops.ooboffs = 0; -- ops.oobbuf = spareAsBytes; -- retval = mtd->read_oob(mtd, addr, &ops); -- if (dev->useNANDECC) -- translate_oob2spare(spare, spareAsBytes); -- } --#else -- __u8 *spareAsBytes = (__u8 *) spare; -- -- if (data && spare) { -- if (dev->useNANDECC) { -- /* Careful, this call adds 2 ints */ -- /* to the end of the spare data. Calling function */ -- /* should allocate enough memory for spare, */ -- /* i.e. [YAFFS_BYTES_PER_SPARE+2*sizeof(int)]. */ -- retval = -- mtd->read_ecc(mtd, addr, dev->nDataBytesPerChunk, -- &dummy, data, spareAsBytes, -- &yaffs_oobinfo); -- } else { -- retval = -- mtd->read_ecc(mtd, addr, dev->nDataBytesPerChunk, -- &dummy, data, spareAsBytes, -- &yaffs_noeccinfo); -- } -- } else { -- if (data) -- retval = -- mtd->read(mtd, addr, dev->nDataBytesPerChunk, &dummy, -- data); -- if (spare) -- retval = -- mtd->read_oob(mtd, addr, YAFFS_BYTES_PER_SPARE, -- &dummy, spareAsBytes); -- } --#endif -- -- if (retval == 0) -- return YAFFS_OK; -- else -- return YAFFS_FAIL; --} -- --int nandmtd_EraseBlockInNAND(yaffs_Device *dev, int blockNumber) -+int nandmtd_EraseBlockInNAND(yaffs_dev_t *dev, int blockNumber) - { -- struct mtd_info *mtd = (struct mtd_info *)(dev->genericDevice); -+ struct mtd_info *mtd = yaffs_dev_to_mtd(dev); - __u32 addr = -- ((loff_t) blockNumber) * dev->nDataBytesPerChunk -- * dev->nChunksPerBlock; -+ ((loff_t) blockNumber) * dev->param.total_bytes_per_chunk -+ * dev->param.chunks_per_block; - struct erase_info ei; -+ - int retval = 0; - - ei.mtd = mtd; - ei.addr = addr; -- ei.len = dev->nDataBytesPerChunk * dev->nChunksPerBlock; -+ ei.len = dev->param.total_bytes_per_chunk * dev->param.chunks_per_block; - ei.time = 1000; - ei.retries = 2; - ei.callback = NULL; - ei.priv = (u_long) dev; - -- /* Todo finish off the ei if required */ -- -- sema_init(&dev->sem, 0); -- - retval = mtd->erase(mtd, &ei); - - if (retval == 0) -@@ -234,7 +49,7 @@ int nandmtd_EraseBlockInNAND(yaffs_Devic - return YAFFS_FAIL; - } - --int nandmtd_InitialiseNAND(yaffs_Device *dev) -+int nandmtd_InitialiseNAND(yaffs_dev_t *dev) - { - return YAFFS_OK; - } ---- a/fs/yaffs2/yaffs_mtdif.h -+++ b/fs/yaffs2/yaffs_mtdif.h -@@ -1,7 +1,7 @@ - /* - * YAFFS: Yet another Flash File System . A NAND-flash specific file system. - * -- * Copyright (C) 2002-2007 Aleph One Ltd. -+ * Copyright (C) 2002-2010 Aleph One Ltd. - * for Toby Churchill Ltd and Brightstar Engineering - * - * Created by Charles Manning -@@ -22,11 +22,6 @@ - extern struct nand_oobinfo yaffs_oobinfo; - extern struct nand_oobinfo yaffs_noeccinfo; - #endif -- --int nandmtd_WriteChunkToNAND(yaffs_Device *dev, int chunkInNAND, -- const __u8 *data, const yaffs_Spare *spare); --int nandmtd_ReadChunkFromNAND(yaffs_Device *dev, int chunkInNAND, __u8 *data, -- yaffs_Spare *spare); --int nandmtd_EraseBlockInNAND(yaffs_Device *dev, int blockNumber); --int nandmtd_InitialiseNAND(yaffs_Device *dev); -+int nandmtd_EraseBlockInNAND(yaffs_dev_t *dev, int blockNumber); -+int nandmtd_InitialiseNAND(yaffs_dev_t *dev); - #endif ---- /dev/null -+++ b/fs/yaffs2/yaffs_nameval.c -@@ -0,0 +1,197 @@ -+/* -+ * YAFFS: Yet Another Flash File System. A NAND-flash specific file system. -+ * -+ * Copyright (C) 2002-2010 Aleph One Ltd. -+ * for Toby Churchill Ltd and Brightstar Engineering -+ * -+ * Created by Charles Manning -+ * -+ * This program is free software; you can redistribute it and/or modify -+ * it under the terms of the GNU General Public License version 2 as -+ * published by the Free Software Foundation. -+ */ -+ -+/* -+ * This simple implementation of a name-value store assumes a small number of values and fits -+ * into a small finite buffer. -+ * -+ * Each attribute is stored as a record: -+ * sizeof(int) bytes record size. -+ * strnlen+1 bytes name null terminated. -+ * nbytes value. -+ * ---------- -+ * total size stored in record size -+ * -+ * This code has not been tested with unicode yet. -+ */ -+ -+ -+#include "yaffs_nameval.h" -+ -+#include "yportenv.h" -+ -+static int nval_find(const char *xb, int xb_size, const YCHAR *name, -+ int *exist_size) -+{ -+ int pos=0; -+ int size; -+ -+ memcpy(&size,xb,sizeof(int)); -+ while(size > 0 && (size < xb_size) && (pos + size < xb_size)){ -+ if(yaffs_strncmp((YCHAR *)(xb+pos+sizeof(int)),name,size) == 0){ -+ if(exist_size) -+ *exist_size = size; -+ return pos; -+ } -+ pos += size; -+ if(pos < xb_size -sizeof(int)) -+ memcpy(&size,xb + pos,sizeof(int)); -+ else -+ size = 0; -+ } -+ if(exist_size) -+ *exist_size = 0; -+ return -1; -+} -+ -+static int nval_used(const char *xb, int xb_size) -+{ -+ int pos=0; -+ int size; -+ -+ memcpy(&size,xb + pos,sizeof(int)); -+ while(size > 0 && (size < xb_size) && (pos + size < xb_size)){ -+ pos += size; -+ if(pos < xb_size -sizeof(int)) -+ memcpy(&size,xb + pos,sizeof(int)); -+ else -+ size = 0; -+ } -+ return pos; -+} -+ -+int nval_del(char *xb, int xb_size, const YCHAR *name) -+{ -+ int pos = nval_find(xb, xb_size, name, NULL); -+ int size; -+ -+ if(pos >= 0 && pos < xb_size){ -+ /* Find size, shift rest over this record, then zero out the rest of buffer */ -+ memcpy(&size,xb+pos,sizeof(int)); -+ memcpy(xb + pos, xb + pos + size, xb_size - (pos + size)); -+ memset(xb + (xb_size - size),0,size); -+ return 0; -+ } else -+ return -ENODATA; -+} -+ -+int nval_set(char *xb, int xb_size, const YCHAR *name, const char *buf, int bsize, int flags) -+{ -+ int pos; -+ int namelen = yaffs_strnlen(name,xb_size); -+ int reclen; -+ int size_exist = 0; -+ int space; -+ int start; -+ -+ pos = nval_find(xb,xb_size,name, &size_exist); -+ -+ if(flags & XATTR_CREATE && pos >= 0) -+ return -EEXIST; -+ if(flags & XATTR_REPLACE && pos < 0) -+ return -ENODATA; -+ -+ start = nval_used(xb,xb_size); -+ space = xb_size - start + size_exist; -+ -+ reclen = (sizeof(int) + namelen + 1 + bsize); -+ -+ if(reclen > space) -+ return -ENOSPC; -+ -+ if(pos >= 0){ -+ nval_del(xb,xb_size,name); -+ start = nval_used(xb, xb_size); -+ } -+ -+ pos = start; -+ -+ memcpy(xb + pos,&reclen,sizeof(int)); -+ pos +=sizeof(int); -+ yaffs_strncpy((YCHAR *)(xb + pos), name, reclen); -+ pos+= (namelen+1); -+ memcpy(xb + pos,buf,bsize); -+ return 0; -+} -+ -+int nval_get(const char *xb, int xb_size, const YCHAR *name, char *buf, int bsize) -+{ -+ int pos = nval_find(xb,xb_size,name,NULL); -+ int size; -+ -+ if(pos >= 0 && pos< xb_size){ -+ -+ memcpy(&size,xb +pos,sizeof(int)); -+ pos+=sizeof(int); /* advance past record length */ -+ size -= sizeof(int); -+ -+ /* Advance over name string */ -+ while(xb[pos] && size > 0 && pos < xb_size){ -+ pos++; -+ size--; -+ } -+ /*Advance over NUL */ -+ pos++; -+ size--; -+ -+ if(size <= bsize){ -+ memcpy(buf,xb + pos,size); -+ return size; -+ } -+ -+ } -+ if(pos >= 0) -+ return -ERANGE; -+ else -+ return -ENODATA; -+} -+ -+int nval_list(const char *xb, int xb_size, char *buf, int bsize) -+{ -+ int pos = 0; -+ int size; -+ int name_len; -+ int ncopied = 0; -+ int filled = 0; -+ -+ memcpy(&size,xb + pos,sizeof(int)); -+ while(size > sizeof(int) && size <= xb_size && (pos + size) < xb_size && !filled){ -+ pos+= sizeof(int); -+ size-=sizeof(int); -+ name_len = yaffs_strnlen((YCHAR *)(xb + pos), size); -+ if(ncopied + name_len + 1 < bsize){ -+ memcpy(buf,xb+pos,name_len * sizeof(YCHAR)); -+ buf+= name_len; -+ *buf = '\0'; -+ buf++; -+ if(sizeof(YCHAR) > 1){ -+ *buf = '\0'; -+ buf++; -+ } -+ ncopied += (name_len+1); -+ } else -+ filled = 1; -+ pos+=size; -+ if(pos < xb_size -sizeof(int)) -+ memcpy(&size,xb + pos,sizeof(int)); -+ else -+ size = 0; -+ } -+ return ncopied; -+} -+ -+ -+int nval_hasvalues(const char *xb, int xb_size) -+{ -+ return nval_used(xb, xb_size) > 0; -+} ---- /dev/null -+++ b/fs/yaffs2/yaffs_nameval.h -@@ -0,0 +1,25 @@ -+/* -+ * YAFFS: Yet another Flash File System . A NAND-flash specific file system. -+ * -+ * Copyright (C) 2002-2010 Aleph One Ltd. -+ * for Toby Churchill Ltd and Brightstar Engineering -+ * -+ * Created by Charles Manning -+ * -+ * This program is free software; you can redistribute it and/or modify -+ * it under the terms of the GNU Lesser General Public License version 2.1 as -+ * published by the Free Software Foundation. -+ * -+ * Note: Only YAFFS headers are LGPL, YAFFS C code is covered by GPL. -+ */ -+#ifndef __NAMEVAL_H__ -+#define __NAMEVAL_H__ -+ -+#include "yportenv.h" -+ -+int nval_del(char *xb, int xb_size, const YCHAR *name); -+int nval_set(char *xb, int xb_size, const YCHAR *name, const char *buf, int bsize, int flags); -+int nval_get(const char *xb, int xb_size, const YCHAR *name, char *buf, int bsize); -+int nval_list(const char *xb, int xb_size, char *buf, int bsize); -+int nval_hasvalues(const char *xb, int xb_size); -+#endif ---- a/fs/yaffs2/yaffs_nand.c -+++ b/fs/yaffs2/yaffs_nand.c -@@ -1,7 +1,7 @@ - /* - * YAFFS: Yet Another Flash File System. A NAND-flash specific file system. - * -- * Copyright (C) 2002-2007 Aleph One Ltd. -+ * Copyright (C) 2002-2010 Aleph One Ltd. - * for Toby Churchill Ltd and Brightstar Engineering - * - * Created by Charles Manning -@@ -11,124 +11,129 @@ - * published by the Free Software Foundation. - */ - --const char *yaffs_nand_c_version = -- "$Id: yaffs_nand.c,v 1.10 2009-03-06 17:20:54 wookey Exp $"; -- - #include "yaffs_nand.h" - #include "yaffs_tagscompat.h" - #include "yaffs_tagsvalidity.h" - - #include "yaffs_getblockinfo.h" - --int yaffs_ReadChunkWithTagsFromNAND(yaffs_Device *dev, int chunkInNAND, -+int yaffs_rd_chunk_tags_nand(yaffs_dev_t *dev, int nand_chunk, - __u8 *buffer, -- yaffs_ExtendedTags *tags) -+ yaffs_ext_tags *tags) - { - int result; -- yaffs_ExtendedTags localTags; -+ yaffs_ext_tags localTags; -+ -+ int realignedChunkInNAND = nand_chunk - dev->chunk_offset; - -- int realignedChunkInNAND = chunkInNAND - dev->chunkOffset; -+ dev->n_page_reads++; - - /* If there are no tags provided, use local tags to get prioritised gc working */ - if (!tags) - tags = &localTags; - -- if (dev->readChunkWithTagsFromNAND) -- result = dev->readChunkWithTagsFromNAND(dev, realignedChunkInNAND, buffer, -+ if (dev->param.read_chunk_tags_fn) -+ result = dev->param.read_chunk_tags_fn(dev, realignedChunkInNAND, buffer, - tags); - else -- result = yaffs_TagsCompatabilityReadChunkWithTagsFromNAND(dev, -+ result = yaffs_tags_compat_rd(dev, - realignedChunkInNAND, - buffer, - tags); - if (tags && -- tags->eccResult > YAFFS_ECC_RESULT_NO_ERROR) { -+ tags->ecc_result > YAFFS_ECC_RESULT_NO_ERROR) { - -- yaffs_BlockInfo *bi = yaffs_GetBlockInfo(dev, chunkInNAND/dev->nChunksPerBlock); -- yaffs_HandleChunkError(dev, bi); -+ yaffs_block_info_t *bi; -+ bi = yaffs_get_block_info(dev, nand_chunk/dev->param.chunks_per_block); -+ yaffs_handle_chunk_error(dev, bi); - } - - return result; - } - --int yaffs_WriteChunkWithTagsToNAND(yaffs_Device *dev, -- int chunkInNAND, -+int yaffs_wr_chunk_tags_nand(yaffs_dev_t *dev, -+ int nand_chunk, - const __u8 *buffer, -- yaffs_ExtendedTags *tags) -+ yaffs_ext_tags *tags) - { -- chunkInNAND -= dev->chunkOffset; -+ -+ dev->n_page_writes++; -+ -+ nand_chunk -= dev->chunk_offset; - - - if (tags) { -- tags->sequenceNumber = dev->sequenceNumber; -- tags->chunkUsed = 1; -- if (!yaffs_ValidateTags(tags)) { -+ tags->seq_number = dev->seq_number; -+ tags->chunk_used = 1; -+ if (!yaffs_validate_tags(tags)) { - T(YAFFS_TRACE_ERROR, - (TSTR("Writing uninitialised tags" TENDSTR))); - YBUG(); - } - T(YAFFS_TRACE_WRITE, -- (TSTR("Writing chunk %d tags %d %d" TENDSTR), chunkInNAND, -- tags->objectId, tags->chunkId)); -+ (TSTR("Writing chunk %d tags %d %d" TENDSTR), nand_chunk, -+ tags->obj_id, tags->chunk_id)); - } else { - T(YAFFS_TRACE_ERROR, (TSTR("Writing with no tags" TENDSTR))); - YBUG(); - } - -- if (dev->writeChunkWithTagsToNAND) -- return dev->writeChunkWithTagsToNAND(dev, chunkInNAND, buffer, -+ if (dev->param.write_chunk_tags_fn) -+ return dev->param.write_chunk_tags_fn(dev, nand_chunk, buffer, - tags); - else -- return yaffs_TagsCompatabilityWriteChunkWithTagsToNAND(dev, -- chunkInNAND, -+ return yaffs_tags_compat_wr(dev, -+ nand_chunk, - buffer, - tags); - } - --int yaffs_MarkBlockBad(yaffs_Device *dev, int blockNo) -+int yaffs_mark_bad(yaffs_dev_t *dev, int block_no) - { -- blockNo -= dev->blockOffset; -+ block_no -= dev->block_offset; -+ - --; -- if (dev->markNANDBlockBad) -- return dev->markNANDBlockBad(dev, blockNo); -+ if (dev->param.bad_block_fn) -+ return dev->param.bad_block_fn(dev, block_no); - else -- return yaffs_TagsCompatabilityMarkNANDBlockBad(dev, blockNo); -+ return yaffs_tags_compat_mark_bad(dev, block_no); - } - --int yaffs_QueryInitialBlockState(yaffs_Device *dev, -- int blockNo, -- yaffs_BlockState *state, -- __u32 *sequenceNumber) -+int yaffs_query_init_block_state(yaffs_dev_t *dev, -+ int block_no, -+ yaffs_block_state_t *state, -+ __u32 *seq_number) - { -- blockNo -= dev->blockOffset; -+ block_no -= dev->block_offset; - -- if (dev->queryNANDBlock) -- return dev->queryNANDBlock(dev, blockNo, state, sequenceNumber); -+ if (dev->param.query_block_fn) -+ return dev->param.query_block_fn(dev, block_no, state, seq_number); - else -- return yaffs_TagsCompatabilityQueryNANDBlock(dev, blockNo, -+ return yaffs_tags_compat_query_block(dev, block_no, - state, -- sequenceNumber); -+ seq_number); - } - - --int yaffs_EraseBlockInNAND(struct yaffs_DeviceStruct *dev, -- int blockInNAND) -+int yaffs_erase_block(struct yaffs_dev_s *dev, -+ int flash_block) - { - int result; - -- blockInNAND -= dev->blockOffset; -+ flash_block -= dev->block_offset; - -+ dev->n_erasures++; - -- dev->nBlockErasures++; -- result = dev->eraseBlockInNAND(dev, blockInNAND); -+ result = dev->param.erase_fn(dev, flash_block); - - return result; - } - --int yaffs_InitialiseNAND(struct yaffs_DeviceStruct *dev) -+int yaffs_init_nand(struct yaffs_dev_s *dev) - { -- return dev->initialiseNAND(dev); -+ if(dev->param.initialise_flash_fn) -+ return dev->param.initialise_flash_fn(dev); -+ return YAFFS_OK; - } - - ---- a/fs/yaffs2/yaffs_nandemul2k.h -+++ b/fs/yaffs2/yaffs_nandemul2k.h -@@ -1,7 +1,7 @@ - /* - * YAFFS: Yet another Flash File System . A NAND-flash specific file system. - * -- * Copyright (C) 2002-2007 Aleph One Ltd. -+ * Copyright (C) 2002-2010 Aleph One Ltd. - * for Toby Churchill Ltd and Brightstar Engineering - * - * Created by Charles Manning -@@ -20,18 +20,18 @@ - - #include "yaffs_guts.h" - --int nandemul2k_WriteChunkWithTagsToNAND(struct yaffs_DeviceStruct *dev, -- int chunkInNAND, const __u8 *data, -- const yaffs_ExtendedTags *tags); --int nandemul2k_ReadChunkWithTagsFromNAND(struct yaffs_DeviceStruct *dev, -- int chunkInNAND, __u8 *data, -- yaffs_ExtendedTags *tags); --int nandemul2k_MarkNANDBlockBad(struct yaffs_DeviceStruct *dev, int blockNo); --int nandemul2k_QueryNANDBlock(struct yaffs_DeviceStruct *dev, int blockNo, -- yaffs_BlockState *state, __u32 *sequenceNumber); --int nandemul2k_EraseBlockInNAND(struct yaffs_DeviceStruct *dev, -- int blockInNAND); --int nandemul2k_InitialiseNAND(struct yaffs_DeviceStruct *dev); -+int nandemul2k_WriteChunkWithTagsToNAND(struct yaffs_dev_s *dev, -+ int nand_chunk, const __u8 *data, -+ const yaffs_ext_tags *tags); -+int nandemul2k_ReadChunkWithTagsFromNAND(struct yaffs_dev_s *dev, -+ int nand_chunk, __u8 *data, -+ yaffs_ext_tags *tags); -+int nandemul2k_MarkNANDBlockBad(struct yaffs_dev_s *dev, int block_no); -+int nandemul2k_QueryNANDBlock(struct yaffs_dev_s *dev, int block_no, -+ yaffs_block_state_t *state, __u32 *seq_number); -+int nandemul2k_EraseBlockInNAND(struct yaffs_dev_s *dev, -+ int flash_block); -+int nandemul2k_InitialiseNAND(struct yaffs_dev_s *dev); - int nandemul2k_GetBytesPerChunk(void); - int nandemul2k_GetChunksPerBlock(void); - int nandemul2k_GetNumberOfBlocks(void); ---- a/fs/yaffs2/yaffs_nand.h -+++ b/fs/yaffs2/yaffs_nand.h -@@ -1,7 +1,7 @@ - /* - * YAFFS: Yet another Flash File System . A NAND-flash specific file system. - * -- * Copyright (C) 2002-2007 Aleph One Ltd. -+ * Copyright (C) 2002-2010 Aleph One Ltd. - * for Toby Churchill Ltd and Brightstar Engineering - * - * Created by Charles Manning -@@ -19,26 +19,26 @@ - - - --int yaffs_ReadChunkWithTagsFromNAND(yaffs_Device *dev, int chunkInNAND, -+int yaffs_rd_chunk_tags_nand(yaffs_dev_t *dev, int nand_chunk, - __u8 *buffer, -- yaffs_ExtendedTags *tags); -+ yaffs_ext_tags *tags); - --int yaffs_WriteChunkWithTagsToNAND(yaffs_Device *dev, -- int chunkInNAND, -+int yaffs_wr_chunk_tags_nand(yaffs_dev_t *dev, -+ int nand_chunk, - const __u8 *buffer, -- yaffs_ExtendedTags *tags); -+ yaffs_ext_tags *tags); - --int yaffs_MarkBlockBad(yaffs_Device *dev, int blockNo); -+int yaffs_mark_bad(yaffs_dev_t *dev, int block_no); - --int yaffs_QueryInitialBlockState(yaffs_Device *dev, -- int blockNo, -- yaffs_BlockState *state, -- unsigned *sequenceNumber); -+int yaffs_query_init_block_state(yaffs_dev_t *dev, -+ int block_no, -+ yaffs_block_state_t *state, -+ unsigned *seq_number); - --int yaffs_EraseBlockInNAND(struct yaffs_DeviceStruct *dev, -- int blockInNAND); -+int yaffs_erase_block(struct yaffs_dev_s *dev, -+ int flash_block); - --int yaffs_InitialiseNAND(struct yaffs_DeviceStruct *dev); -+int yaffs_init_nand(struct yaffs_dev_s *dev); - - #endif - ---- a/fs/yaffs2/yaffs_packedtags1.c -+++ b/fs/yaffs2/yaffs_packedtags1.c -@@ -1,7 +1,7 @@ - /* - * YAFFS: Yet Another Flash File System. A NAND-flash specific file system. - * -- * Copyright (C) 2002-2007 Aleph One Ltd. -+ * Copyright (C) 2002-2010 Aleph One Ltd. - * for Toby Churchill Ltd and Brightstar Engineering - * - * Created by Charles Manning -@@ -14,37 +14,37 @@ - #include "yaffs_packedtags1.h" - #include "yportenv.h" - --void yaffs_PackTags1(yaffs_PackedTags1 *pt, const yaffs_ExtendedTags *t) -+void yaffs_PackTags1(yaffs_PackedTags1 *pt, const yaffs_ext_tags *t) - { -- pt->chunkId = t->chunkId; -- pt->serialNumber = t->serialNumber; -- pt->byteCount = t->byteCount; -- pt->objectId = t->objectId; -+ pt->chunk_id = t->chunk_id; -+ pt->serial_number = t->serial_number; -+ pt->n_bytes = t->n_bytes; -+ pt->obj_id = t->obj_id; - pt->ecc = 0; -- pt->deleted = (t->chunkDeleted) ? 0 : 1; -+ pt->deleted = (t->is_deleted) ? 0 : 1; - pt->unusedStuff = 0; - pt->shouldBeFF = 0xFFFFFFFF; - - } - --void yaffs_UnpackTags1(yaffs_ExtendedTags *t, const yaffs_PackedTags1 *pt) -+void yaffs_unpack_tags1(yaffs_ext_tags *t, const yaffs_PackedTags1 *pt) - { - static const __u8 allFF[] = - { 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, - 0xff }; - - if (memcmp(allFF, pt, sizeof(yaffs_PackedTags1))) { -- t->blockBad = 0; -+ t->block_bad = 0; - if (pt->shouldBeFF != 0xFFFFFFFF) -- t->blockBad = 1; -- t->chunkUsed = 1; -- t->objectId = pt->objectId; -- t->chunkId = pt->chunkId; -- t->byteCount = pt->byteCount; -- t->eccResult = YAFFS_ECC_RESULT_NO_ERROR; -- t->chunkDeleted = (pt->deleted) ? 0 : 1; -- t->serialNumber = pt->serialNumber; -+ t->block_bad = 1; -+ t->chunk_used = 1; -+ t->obj_id = pt->obj_id; -+ t->chunk_id = pt->chunk_id; -+ t->n_bytes = pt->n_bytes; -+ t->ecc_result = YAFFS_ECC_RESULT_NO_ERROR; -+ t->is_deleted = (pt->deleted) ? 0 : 1; -+ t->serial_number = pt->serial_number; - } else { -- memset(t, 0, sizeof(yaffs_ExtendedTags)); -+ memset(t, 0, sizeof(yaffs_ext_tags)); - } - } ---- a/fs/yaffs2/yaffs_packedtags1.h -+++ b/fs/yaffs2/yaffs_packedtags1.h -@@ -1,7 +1,7 @@ - /* - * YAFFS: Yet another Flash File System . A NAND-flash specific file system. - * -- * Copyright (C) 2002-2007 Aleph One Ltd. -+ * Copyright (C) 2002-2010 Aleph One Ltd. - * for Toby Churchill Ltd and Brightstar Engineering - * - * Created by Charles Manning -@@ -21,10 +21,10 @@ - #include "yaffs_guts.h" - - typedef struct { -- unsigned chunkId:20; -- unsigned serialNumber:2; -- unsigned byteCount:10; -- unsigned objectId:18; -+ unsigned chunk_id:20; -+ unsigned serial_number:2; -+ unsigned n_bytes:10; -+ unsigned obj_id:18; - unsigned ecc:12; - unsigned deleted:1; - unsigned unusedStuff:1; -@@ -32,6 +32,6 @@ typedef struct { - - } yaffs_PackedTags1; - --void yaffs_PackTags1(yaffs_PackedTags1 *pt, const yaffs_ExtendedTags *t); --void yaffs_UnpackTags1(yaffs_ExtendedTags *t, const yaffs_PackedTags1 *pt); -+void yaffs_PackTags1(yaffs_PackedTags1 *pt, const yaffs_ext_tags *t); -+void yaffs_unpack_tags1(yaffs_ext_tags *t, const yaffs_PackedTags1 *pt); - #endif ---- a/fs/yaffs2/yaffs_packedtags2.c -+++ b/fs/yaffs2/yaffs_packedtags2.c -@@ -1,7 +1,7 @@ - /* - * YAFFS: Yet Another Flash File System. A NAND-flash specific file system. - * -- * Copyright (C) 2002-2007 Aleph One Ltd. -+ * Copyright (C) 2002-2010 Aleph One Ltd. - * for Toby Churchill Ltd and Brightstar Engineering - * - * Created by Charles Manning -@@ -13,6 +13,7 @@ - - #include "yaffs_packedtags2.h" - #include "yportenv.h" -+#include "yaffs_trace.h" - #include "yaffs_tagsvalidity.h" - - /* This code packs a set of extended tags into a binary structure for -@@ -24,7 +25,7 @@ - * This is defined by having the EXTRA_HEADER_INFO_FLAG set. - */ - --/* Extra flags applied to chunkId */ -+/* Extra flags applied to chunk_id */ - - #define EXTRA_HEADER_INFO_FLAG 0x80000000 - #define EXTRA_SHRINK_FLAG 0x40000000 -@@ -42,53 +43,53 @@ static void yaffs_DumpPackedTags2TagsPar - { - T(YAFFS_TRACE_MTD, - (TSTR("packed tags obj %d chunk %d byte %d seq %d" TENDSTR), -- ptt->objectId, ptt->chunkId, ptt->byteCount, -- ptt->sequenceNumber)); -+ ptt->obj_id, ptt->chunk_id, ptt->n_bytes, -+ ptt->seq_number)); - } - static void yaffs_DumpPackedTags2(const yaffs_PackedTags2 *pt) - { - yaffs_DumpPackedTags2TagsPart(&pt->t); - } - --static void yaffs_DumpTags2(const yaffs_ExtendedTags *t) -+static void yaffs_DumpTags2(const yaffs_ext_tags *t) - { - T(YAFFS_TRACE_MTD, - (TSTR - ("ext.tags eccres %d blkbad %d chused %d obj %d chunk%d byte %d del %d ser %d seq %d" -- TENDSTR), t->eccResult, t->blockBad, t->chunkUsed, t->objectId, -- t->chunkId, t->byteCount, t->chunkDeleted, t->serialNumber, -- t->sequenceNumber)); -+ TENDSTR), t->ecc_result, t->block_bad, t->chunk_used, t->obj_id, -+ t->chunk_id, t->n_bytes, t->is_deleted, t->serial_number, -+ t->seq_number)); - - } - - void yaffs_PackTags2TagsPart(yaffs_PackedTags2TagsPart *ptt, -- const yaffs_ExtendedTags *t) -+ const yaffs_ext_tags *t) - { -- ptt->chunkId = t->chunkId; -- ptt->sequenceNumber = t->sequenceNumber; -- ptt->byteCount = t->byteCount; -- ptt->objectId = t->objectId; -+ ptt->chunk_id = t->chunk_id; -+ ptt->seq_number = t->seq_number; -+ ptt->n_bytes = t->n_bytes; -+ ptt->obj_id = t->obj_id; - -- if (t->chunkId == 0 && t->extraHeaderInfoAvailable) { -+ if (t->chunk_id == 0 && t->extra_available) { - /* Store the extra header info instead */ -- /* We save the parent object in the chunkId */ -- ptt->chunkId = EXTRA_HEADER_INFO_FLAG -- | t->extraParentObjectId; -- if (t->extraIsShrinkHeader) -- ptt->chunkId |= EXTRA_SHRINK_FLAG; -- if (t->extraShadows) -- ptt->chunkId |= EXTRA_SHADOWS_FLAG; -- -- ptt->objectId &= ~EXTRA_OBJECT_TYPE_MASK; -- ptt->objectId |= -- (t->extraObjectType << EXTRA_OBJECT_TYPE_SHIFT); -- -- if (t->extraObjectType == YAFFS_OBJECT_TYPE_HARDLINK) -- ptt->byteCount = t->extraEquivalentObjectId; -- else if (t->extraObjectType == YAFFS_OBJECT_TYPE_FILE) -- ptt->byteCount = t->extraFileLength; -+ /* We save the parent object in the chunk_id */ -+ ptt->chunk_id = EXTRA_HEADER_INFO_FLAG -+ | t->extra_parent_id; -+ if (t->extra_is_shrink) -+ ptt->chunk_id |= EXTRA_SHRINK_FLAG; -+ if (t->extra_shadows) -+ ptt->chunk_id |= EXTRA_SHADOWS_FLAG; -+ -+ ptt->obj_id &= ~EXTRA_OBJECT_TYPE_MASK; -+ ptt->obj_id |= -+ (t->extra_obj_type << EXTRA_OBJECT_TYPE_SHIFT); -+ -+ if (t->extra_obj_type == YAFFS_OBJECT_TYPE_HARDLINK) -+ ptt->n_bytes = t->extra_equiv_id; -+ else if (t->extra_obj_type == YAFFS_OBJECT_TYPE_FILE) -+ ptt->n_bytes = t->extra_length; - else -- ptt->byteCount = 0; -+ ptt->n_bytes = 0; - } - - yaffs_DumpPackedTags2TagsPart(ptt); -@@ -96,59 +97,56 @@ void yaffs_PackTags2TagsPart(yaffs_Packe - } - - --void yaffs_PackTags2(yaffs_PackedTags2 *pt, const yaffs_ExtendedTags *t) -+void yaffs_PackTags2(yaffs_PackedTags2 *pt, const yaffs_ext_tags *t, int tagsECC) - { - yaffs_PackTags2TagsPart(&pt->t, t); - --#ifndef YAFFS_IGNORE_TAGS_ECC -- { -- yaffs_ECCCalculateOther((unsigned char *)&pt->t, -+ if(tagsECC) -+ yaffs_ecc_calc_other((unsigned char *)&pt->t, - sizeof(yaffs_PackedTags2TagsPart), - &pt->ecc); -- } --#endif - } - - --void yaffs_UnpackTags2TagsPart(yaffs_ExtendedTags *t, -+void yaffs_unpack_tags2tags_part(yaffs_ext_tags *t, - yaffs_PackedTags2TagsPart *ptt) - { - -- memset(t, 0, sizeof(yaffs_ExtendedTags)); -+ memset(t, 0, sizeof(yaffs_ext_tags)); - -- yaffs_InitialiseTags(t); -+ yaffs_init_tags(t); - -- if (ptt->sequenceNumber != 0xFFFFFFFF) { -- t->blockBad = 0; -- t->chunkUsed = 1; -- t->objectId = ptt->objectId; -- t->chunkId = ptt->chunkId; -- t->byteCount = ptt->byteCount; -- t->chunkDeleted = 0; -- t->serialNumber = 0; -- t->sequenceNumber = ptt->sequenceNumber; -+ if (ptt->seq_number != 0xFFFFFFFF) { -+ t->block_bad = 0; -+ t->chunk_used = 1; -+ t->obj_id = ptt->obj_id; -+ t->chunk_id = ptt->chunk_id; -+ t->n_bytes = ptt->n_bytes; -+ t->is_deleted = 0; -+ t->serial_number = 0; -+ t->seq_number = ptt->seq_number; - - /* Do extra header info stuff */ - -- if (ptt->chunkId & EXTRA_HEADER_INFO_FLAG) { -- t->chunkId = 0; -- t->byteCount = 0; -- -- t->extraHeaderInfoAvailable = 1; -- t->extraParentObjectId = -- ptt->chunkId & (~(ALL_EXTRA_FLAGS)); -- t->extraIsShrinkHeader = -- (ptt->chunkId & EXTRA_SHRINK_FLAG) ? 1 : 0; -- t->extraShadows = -- (ptt->chunkId & EXTRA_SHADOWS_FLAG) ? 1 : 0; -- t->extraObjectType = -- ptt->objectId >> EXTRA_OBJECT_TYPE_SHIFT; -- t->objectId &= ~EXTRA_OBJECT_TYPE_MASK; -+ if (ptt->chunk_id & EXTRA_HEADER_INFO_FLAG) { -+ t->chunk_id = 0; -+ t->n_bytes = 0; -+ -+ t->extra_available = 1; -+ t->extra_parent_id = -+ ptt->chunk_id & (~(ALL_EXTRA_FLAGS)); -+ t->extra_is_shrink = -+ (ptt->chunk_id & EXTRA_SHRINK_FLAG) ? 1 : 0; -+ t->extra_shadows = -+ (ptt->chunk_id & EXTRA_SHADOWS_FLAG) ? 1 : 0; -+ t->extra_obj_type = -+ ptt->obj_id >> EXTRA_OBJECT_TYPE_SHIFT; -+ t->obj_id &= ~EXTRA_OBJECT_TYPE_MASK; - -- if (t->extraObjectType == YAFFS_OBJECT_TYPE_HARDLINK) -- t->extraEquivalentObjectId = ptt->byteCount; -+ if (t->extra_obj_type == YAFFS_OBJECT_TYPE_HARDLINK) -+ t->extra_equiv_id = ptt->n_bytes; - else -- t->extraFileLength = ptt->byteCount; -+ t->extra_length = ptt->n_bytes; - } - } - -@@ -158,49 +156,43 @@ void yaffs_UnpackTags2TagsPart(yaffs_Ext - } - - --void yaffs_UnpackTags2(yaffs_ExtendedTags *t, yaffs_PackedTags2 *pt) -+void yaffs_unpack_tags2(yaffs_ext_tags *t, yaffs_PackedTags2 *pt, int tagsECC) - { - -- yaffs_ECCResult eccResult = YAFFS_ECC_RESULT_NO_ERROR; -+ yaffs_ecc_result ecc_result = YAFFS_ECC_RESULT_NO_ERROR; - -- if (pt->t.sequenceNumber != 0xFFFFFFFF) { -- /* Page is in use */ --#ifndef YAFFS_IGNORE_TAGS_ECC -- { -- yaffs_ECCOther ecc; -- int result; -- yaffs_ECCCalculateOther((unsigned char *)&pt->t, -- sizeof -- (yaffs_PackedTags2TagsPart), -- &ecc); -- result = -- yaffs_ECCCorrectOther((unsigned char *)&pt->t, -- sizeof -- (yaffs_PackedTags2TagsPart), -- &pt->ecc, &ecc); -- switch (result) { -+ if (pt->t.seq_number != 0xFFFFFFFF && -+ tagsECC){ -+ /* Chunk is in use and we need to do ECC */ -+ -+ yaffs_ECCOther ecc; -+ int result; -+ yaffs_ecc_calc_other((unsigned char *)&pt->t, -+ sizeof(yaffs_PackedTags2TagsPart), -+ &ecc); -+ result = yaffs_ecc_correct_other((unsigned char *)&pt->t, -+ sizeof(yaffs_PackedTags2TagsPart), -+ &pt->ecc, &ecc); -+ switch (result) { - case 0: -- eccResult = YAFFS_ECC_RESULT_NO_ERROR; -+ ecc_result = YAFFS_ECC_RESULT_NO_ERROR; - break; - case 1: -- eccResult = YAFFS_ECC_RESULT_FIXED; -+ ecc_result = YAFFS_ECC_RESULT_FIXED; - break; - case -1: -- eccResult = YAFFS_ECC_RESULT_UNFIXED; -+ ecc_result = YAFFS_ECC_RESULT_UNFIXED; - break; - default: -- eccResult = YAFFS_ECC_RESULT_UNKNOWN; -- } -+ ecc_result = YAFFS_ECC_RESULT_UNKNOWN; - } --#endif - } - -- yaffs_UnpackTags2TagsPart(t, &pt->t); -+ yaffs_unpack_tags2tags_part(t, &pt->t); - -- t->eccResult = eccResult; -+ t->ecc_result = ecc_result; - - yaffs_DumpPackedTags2(pt); - yaffs_DumpTags2(t); -- - } - ---- a/fs/yaffs2/yaffs_packedtags2.h -+++ b/fs/yaffs2/yaffs_packedtags2.h -@@ -1,7 +1,7 @@ - /* - * YAFFS: Yet another Flash File System . A NAND-flash specific file system. - * -- * Copyright (C) 2002-2007 Aleph One Ltd. -+ * Copyright (C) 2002-2010 Aleph One Ltd. - * for Toby Churchill Ltd and Brightstar Engineering - * - * Created by Charles Manning -@@ -22,10 +22,10 @@ - #include "yaffs_ecc.h" - - typedef struct { -- unsigned sequenceNumber; -- unsigned objectId; -- unsigned chunkId; -- unsigned byteCount; -+ unsigned seq_number; -+ unsigned obj_id; -+ unsigned chunk_id; -+ unsigned n_bytes; - } yaffs_PackedTags2TagsPart; - - typedef struct { -@@ -34,10 +34,10 @@ typedef struct { - } yaffs_PackedTags2; - - /* Full packed tags with ECC, used for oob tags */ --void yaffs_PackTags2(yaffs_PackedTags2 *pt, const yaffs_ExtendedTags *t); --void yaffs_UnpackTags2(yaffs_ExtendedTags *t, yaffs_PackedTags2 *pt); -+void yaffs_PackTags2(yaffs_PackedTags2 *pt, const yaffs_ext_tags *t, int tagsECC); -+void yaffs_unpack_tags2(yaffs_ext_tags *t, yaffs_PackedTags2 *pt, int tagsECC); - - /* Only the tags part (no ECC for use with inband tags */ --void yaffs_PackTags2TagsPart(yaffs_PackedTags2TagsPart *pt, const yaffs_ExtendedTags *t); --void yaffs_UnpackTags2TagsPart(yaffs_ExtendedTags *t, yaffs_PackedTags2TagsPart *pt); -+void yaffs_PackTags2TagsPart(yaffs_PackedTags2TagsPart *pt, const yaffs_ext_tags *t); -+void yaffs_unpack_tags2tags_part(yaffs_ext_tags *t, yaffs_PackedTags2TagsPart *pt); - #endif ---- a/fs/yaffs2/yaffs_qsort.h -+++ b/fs/yaffs2/yaffs_qsort.h -@@ -1,7 +1,7 @@ - /* - * YAFFS: Yet another Flash File System . A NAND-flash specific file system. - * -- * Copyright (C) 2002-2007 Aleph One Ltd. -+ * Copyright (C) 2002-2010 Aleph One Ltd. - * for Toby Churchill Ltd and Brightstar Engineering - * - * Created by Charles Manning -@@ -17,7 +17,18 @@ - #ifndef __YAFFS_QSORT_H__ - #define __YAFFS_QSORT_H__ - -+#ifdef __KERNEL__ -+#include -+ -+extern void yaffs_qsort(void *const base, size_t total_elems, size_t size, -+ int (*cmp)(const void *, const void *)){ -+ sort(base, total_elems, size, cmp, NULL); -+} -+ -+#else -+ - extern void yaffs_qsort(void *const base, size_t total_elems, size_t size, - int (*cmp)(const void *, const void *)); - - #endif -+#endif ---- a/fs/yaffs2/yaffs_tagscompat.c -+++ b/fs/yaffs2/yaffs_tagscompat.c -@@ -1,7 +1,7 @@ - /* - * YAFFS: Yet Another Flash File System. A NAND-flash specific file system. - * -- * Copyright (C) 2002-2007 Aleph One Ltd. -+ * Copyright (C) 2002-2010 Aleph One Ltd. - * for Toby Churchill Ltd and Brightstar Engineering - * - * Created by Charles Manning -@@ -15,19 +15,20 @@ - #include "yaffs_tagscompat.h" - #include "yaffs_ecc.h" - #include "yaffs_getblockinfo.h" -+#include "yaffs_trace.h" - --static void yaffs_HandleReadDataError(yaffs_Device *dev, int chunkInNAND); -+static void yaffs_handle_rd_data_error(yaffs_dev_t *dev, int nand_chunk); - #ifdef NOTYET --static void yaffs_CheckWrittenBlock(yaffs_Device *dev, int chunkInNAND); --static void yaffs_HandleWriteChunkOk(yaffs_Device *dev, int chunkInNAND, -+static void yaffs_check_written_block(yaffs_dev_t *dev, int nand_chunk); -+static void yaffs_handle_chunk_wr_ok(yaffs_dev_t *dev, int nand_chunk, - const __u8 *data, -- const yaffs_Spare *spare); --static void yaffs_HandleUpdateChunk(yaffs_Device *dev, int chunkInNAND, -- const yaffs_Spare *spare); --static void yaffs_HandleWriteChunkError(yaffs_Device *dev, int chunkInNAND); -+ const yaffs_spare *spare); -+static void yaffs_handle_chunk_update(yaffs_dev_t *dev, int nand_chunk, -+ const yaffs_spare *spare); -+static void yaffs_handle_chunk_wr_error(yaffs_dev_t *dev, int nand_chunk); - #endif - --static const char yaffs_countBitsTable[256] = { -+static const char yaffs_count_bits_table[256] = { - 0, 1, 1, 2, 1, 2, 2, 3, 1, 2, 2, 3, 2, 3, 3, 4, - 1, 2, 2, 3, 2, 3, 3, 4, 2, 3, 3, 4, 3, 4, 4, 5, - 1, 2, 2, 3, 2, 3, 3, 4, 2, 3, 3, 4, 3, 4, 4, 5, -@@ -46,26 +47,26 @@ static const char yaffs_countBitsTable[2 - 4, 5, 5, 6, 5, 6, 6, 7, 5, 6, 6, 7, 6, 7, 7, 8 - }; - --int yaffs_CountBits(__u8 x) -+int yaffs_count_bits(__u8 x) - { - int retVal; -- retVal = yaffs_countBitsTable[x]; -+ retVal = yaffs_count_bits_table[x]; - return retVal; - } - - /********** Tags ECC calculations *********/ - --void yaffs_CalcECC(const __u8 *data, yaffs_Spare *spare) -+void yaffs_calc_ecc(const __u8 *data, yaffs_spare *spare) - { -- yaffs_ECCCalculate(data, spare->ecc1); -- yaffs_ECCCalculate(&data[256], spare->ecc2); -+ yaffs_ecc_cacl(data, spare->ecc1); -+ yaffs_ecc_cacl(&data[256], spare->ecc2); - } - --void yaffs_CalcTagsECC(yaffs_Tags *tags) -+void yaffs_calc_tags_ecc(yaffs_tags_t *tags) - { - /* Calculate an ecc */ - -- unsigned char *b = ((yaffs_TagsUnion *) tags)->asBytes; -+ unsigned char *b = ((yaffs_tags_union_t *) tags)->as_bytes; - unsigned i, j; - unsigned ecc = 0; - unsigned bit = 0; -@@ -84,24 +85,24 @@ void yaffs_CalcTagsECC(yaffs_Tags *tags) - - } - --int yaffs_CheckECCOnTags(yaffs_Tags *tags) -+int yaffs_check_tags_ecc(yaffs_tags_t *tags) - { - unsigned ecc = tags->ecc; - -- yaffs_CalcTagsECC(tags); -+ yaffs_calc_tags_ecc(tags); - - ecc ^= tags->ecc; - - if (ecc && ecc <= 64) { - /* TODO: Handle the failure better. Retire? */ -- unsigned char *b = ((yaffs_TagsUnion *) tags)->asBytes; -+ unsigned char *b = ((yaffs_tags_union_t *) tags)->as_bytes; - - ecc--; - - b[ecc / 8] ^= (1 << (ecc & 7)); - - /* Now recvalc the ecc */ -- yaffs_CalcTagsECC(tags); -+ yaffs_calc_tags_ecc(tags); - - return 1; /* recovered error */ - } else if (ecc) { -@@ -115,76 +116,73 @@ int yaffs_CheckECCOnTags(yaffs_Tags *tag - - /********** Tags **********/ - --static void yaffs_LoadTagsIntoSpare(yaffs_Spare *sparePtr, -- yaffs_Tags *tagsPtr) -+static void yaffs_load_tags_to_spare(yaffs_spare *sparePtr, -+ yaffs_tags_t *tagsPtr) - { -- yaffs_TagsUnion *tu = (yaffs_TagsUnion *) tagsPtr; -+ yaffs_tags_union_t *tu = (yaffs_tags_union_t *) tagsPtr; - -- yaffs_CalcTagsECC(tagsPtr); -+ yaffs_calc_tags_ecc(tagsPtr); - -- sparePtr->tagByte0 = tu->asBytes[0]; -- sparePtr->tagByte1 = tu->asBytes[1]; -- sparePtr->tagByte2 = tu->asBytes[2]; -- sparePtr->tagByte3 = tu->asBytes[3]; -- sparePtr->tagByte4 = tu->asBytes[4]; -- sparePtr->tagByte5 = tu->asBytes[5]; -- sparePtr->tagByte6 = tu->asBytes[6]; -- sparePtr->tagByte7 = tu->asBytes[7]; -+ sparePtr->tb0 = tu->as_bytes[0]; -+ sparePtr->tb1 = tu->as_bytes[1]; -+ sparePtr->tb2 = tu->as_bytes[2]; -+ sparePtr->tb3 = tu->as_bytes[3]; -+ sparePtr->tb4 = tu->as_bytes[4]; -+ sparePtr->tb5 = tu->as_bytes[5]; -+ sparePtr->tb6 = tu->as_bytes[6]; -+ sparePtr->tb7 = tu->as_bytes[7]; - } - --static void yaffs_GetTagsFromSpare(yaffs_Device *dev, yaffs_Spare *sparePtr, -- yaffs_Tags *tagsPtr) -+static void yaffs_get_tags_from_spare(yaffs_dev_t *dev, yaffs_spare *sparePtr, -+ yaffs_tags_t *tagsPtr) - { -- yaffs_TagsUnion *tu = (yaffs_TagsUnion *) tagsPtr; -+ yaffs_tags_union_t *tu = (yaffs_tags_union_t *) tagsPtr; - int result; - -- tu->asBytes[0] = sparePtr->tagByte0; -- tu->asBytes[1] = sparePtr->tagByte1; -- tu->asBytes[2] = sparePtr->tagByte2; -- tu->asBytes[3] = sparePtr->tagByte3; -- tu->asBytes[4] = sparePtr->tagByte4; -- tu->asBytes[5] = sparePtr->tagByte5; -- tu->asBytes[6] = sparePtr->tagByte6; -- tu->asBytes[7] = sparePtr->tagByte7; -+ tu->as_bytes[0] = sparePtr->tb0; -+ tu->as_bytes[1] = sparePtr->tb1; -+ tu->as_bytes[2] = sparePtr->tb2; -+ tu->as_bytes[3] = sparePtr->tb3; -+ tu->as_bytes[4] = sparePtr->tb4; -+ tu->as_bytes[5] = sparePtr->tb5; -+ tu->as_bytes[6] = sparePtr->tb6; -+ tu->as_bytes[7] = sparePtr->tb7; - -- result = yaffs_CheckECCOnTags(tagsPtr); -+ result = yaffs_check_tags_ecc(tagsPtr); - if (result > 0) -- dev->tagsEccFixed++; -+ dev->n_tags_ecc_fixed++; - else if (result < 0) -- dev->tagsEccUnfixed++; -+ dev->n_tags_ecc_unfixed++; - } - --static void yaffs_SpareInitialise(yaffs_Spare *spare) -+static void yaffs_spare_init(yaffs_spare *spare) - { -- memset(spare, 0xFF, sizeof(yaffs_Spare)); -+ memset(spare, 0xFF, sizeof(yaffs_spare)); - } - --static int yaffs_WriteChunkToNAND(struct yaffs_DeviceStruct *dev, -- int chunkInNAND, const __u8 *data, -- yaffs_Spare *spare) -+static int yaffs_wr_nand(struct yaffs_dev_s *dev, -+ int nand_chunk, const __u8 *data, -+ yaffs_spare *spare) - { -- if (chunkInNAND < dev->startBlock * dev->nChunksPerBlock) { -+ if (nand_chunk < dev->param.start_block * dev->param.chunks_per_block) { - T(YAFFS_TRACE_ERROR, - (TSTR("**>> yaffs chunk %d is not valid" TENDSTR), -- chunkInNAND)); -+ nand_chunk)); - return YAFFS_FAIL; - } - -- dev->nPageWrites++; -- return dev->writeChunkToNAND(dev, chunkInNAND, data, spare); -+ return dev->param.write_chunk_fn(dev, nand_chunk, data, spare); - } - --static int yaffs_ReadChunkFromNAND(struct yaffs_DeviceStruct *dev, -- int chunkInNAND, -+static int yaffs_rd_chunk_nand(struct yaffs_dev_s *dev, -+ int nand_chunk, - __u8 *data, -- yaffs_Spare *spare, -- yaffs_ECCResult *eccResult, -+ yaffs_spare *spare, -+ yaffs_ecc_result *ecc_result, - int doErrorCorrection) - { - int retVal; -- yaffs_Spare localSpare; -- -- dev->nPageReads++; -+ yaffs_spare localSpare; - - if (!spare && data) { - /* If we don't have a real spare, then we use a local one. */ -@@ -192,107 +190,107 @@ static int yaffs_ReadChunkFromNAND(struc - spare = &localSpare; - } - -- if (!dev->useNANDECC) { -- retVal = dev->readChunkFromNAND(dev, chunkInNAND, data, spare); -+ if (!dev->param.use_nand_ecc) { -+ retVal = dev->param.read_chunk_fn(dev, nand_chunk, data, spare); - if (data && doErrorCorrection) { - /* Do ECC correction */ - /* Todo handle any errors */ -- int eccResult1, eccResult2; -+ int ecc_result1, ecc_result2; - __u8 calcEcc[3]; - -- yaffs_ECCCalculate(data, calcEcc); -- eccResult1 = -- yaffs_ECCCorrect(data, spare->ecc1, calcEcc); -- yaffs_ECCCalculate(&data[256], calcEcc); -- eccResult2 = -- yaffs_ECCCorrect(&data[256], spare->ecc2, calcEcc); -+ yaffs_ecc_cacl(data, calcEcc); -+ ecc_result1 = -+ yaffs_ecc_correct(data, spare->ecc1, calcEcc); -+ yaffs_ecc_cacl(&data[256], calcEcc); -+ ecc_result2 = -+ yaffs_ecc_correct(&data[256], spare->ecc2, calcEcc); - -- if (eccResult1 > 0) { -+ if (ecc_result1 > 0) { - T(YAFFS_TRACE_ERROR, - (TSTR - ("**>>yaffs ecc error fix performed on chunk %d:0" -- TENDSTR), chunkInNAND)); -- dev->eccFixed++; -- } else if (eccResult1 < 0) { -+ TENDSTR), nand_chunk)); -+ dev->n_ecc_fixed++; -+ } else if (ecc_result1 < 0) { - T(YAFFS_TRACE_ERROR, - (TSTR - ("**>>yaffs ecc error unfixed on chunk %d:0" -- TENDSTR), chunkInNAND)); -- dev->eccUnfixed++; -+ TENDSTR), nand_chunk)); -+ dev->n_ecc_unfixed++; - } - -- if (eccResult2 > 0) { -+ if (ecc_result2 > 0) { - T(YAFFS_TRACE_ERROR, - (TSTR - ("**>>yaffs ecc error fix performed on chunk %d:1" -- TENDSTR), chunkInNAND)); -- dev->eccFixed++; -- } else if (eccResult2 < 0) { -+ TENDSTR), nand_chunk)); -+ dev->n_ecc_fixed++; -+ } else if (ecc_result2 < 0) { - T(YAFFS_TRACE_ERROR, - (TSTR - ("**>>yaffs ecc error unfixed on chunk %d:1" -- TENDSTR), chunkInNAND)); -- dev->eccUnfixed++; -+ TENDSTR), nand_chunk)); -+ dev->n_ecc_unfixed++; - } - -- if (eccResult1 || eccResult2) { -+ if (ecc_result1 || ecc_result2) { - /* We had a data problem on this page */ -- yaffs_HandleReadDataError(dev, chunkInNAND); -+ yaffs_handle_rd_data_error(dev, nand_chunk); - } - -- if (eccResult1 < 0 || eccResult2 < 0) -- *eccResult = YAFFS_ECC_RESULT_UNFIXED; -- else if (eccResult1 > 0 || eccResult2 > 0) -- *eccResult = YAFFS_ECC_RESULT_FIXED; -+ if (ecc_result1 < 0 || ecc_result2 < 0) -+ *ecc_result = YAFFS_ECC_RESULT_UNFIXED; -+ else if (ecc_result1 > 0 || ecc_result2 > 0) -+ *ecc_result = YAFFS_ECC_RESULT_FIXED; - else -- *eccResult = YAFFS_ECC_RESULT_NO_ERROR; -+ *ecc_result = YAFFS_ECC_RESULT_NO_ERROR; - } - } else { - /* Must allocate enough memory for spare+2*sizeof(int) */ - /* for ecc results from device. */ -- struct yaffs_NANDSpare nspare; -+ struct yaffs_nand_spare nspare; - - memset(&nspare, 0, sizeof(nspare)); - -- retVal = dev->readChunkFromNAND(dev, chunkInNAND, data, -- (yaffs_Spare *) &nspare); -- memcpy(spare, &nspare, sizeof(yaffs_Spare)); -+ retVal = dev->param.read_chunk_fn(dev, nand_chunk, data, -+ (yaffs_spare *) &nspare); -+ memcpy(spare, &nspare, sizeof(yaffs_spare)); - if (data && doErrorCorrection) { - if (nspare.eccres1 > 0) { - T(YAFFS_TRACE_ERROR, - (TSTR - ("**>>mtd ecc error fix performed on chunk %d:0" -- TENDSTR), chunkInNAND)); -+ TENDSTR), nand_chunk)); - } else if (nspare.eccres1 < 0) { - T(YAFFS_TRACE_ERROR, - (TSTR - ("**>>mtd ecc error unfixed on chunk %d:0" -- TENDSTR), chunkInNAND)); -+ TENDSTR), nand_chunk)); - } - - if (nspare.eccres2 > 0) { - T(YAFFS_TRACE_ERROR, - (TSTR - ("**>>mtd ecc error fix performed on chunk %d:1" -- TENDSTR), chunkInNAND)); -+ TENDSTR), nand_chunk)); - } else if (nspare.eccres2 < 0) { - T(YAFFS_TRACE_ERROR, - (TSTR - ("**>>mtd ecc error unfixed on chunk %d:1" -- TENDSTR), chunkInNAND)); -+ TENDSTR), nand_chunk)); - } - - if (nspare.eccres1 || nspare.eccres2) { - /* We had a data problem on this page */ -- yaffs_HandleReadDataError(dev, chunkInNAND); -+ yaffs_handle_rd_data_error(dev, nand_chunk); - } - - if (nspare.eccres1 < 0 || nspare.eccres2 < 0) -- *eccResult = YAFFS_ECC_RESULT_UNFIXED; -+ *ecc_result = YAFFS_ECC_RESULT_UNFIXED; - else if (nspare.eccres1 > 0 || nspare.eccres2 > 0) -- *eccResult = YAFFS_ECC_RESULT_FIXED; -+ *ecc_result = YAFFS_ECC_RESULT_FIXED; - else -- *eccResult = YAFFS_ECC_RESULT_NO_ERROR; -+ *ecc_result = YAFFS_ECC_RESULT_NO_ERROR; - - } - } -@@ -300,17 +298,17 @@ static int yaffs_ReadChunkFromNAND(struc - } - - #ifdef NOTYET --static int yaffs_CheckChunkErased(struct yaffs_DeviceStruct *dev, -- int chunkInNAND) -+static int yaffs_check_chunk_erased(struct yaffs_dev_s *dev, -+ int nand_chunk) - { - static int init; - static __u8 cmpbuf[YAFFS_BYTES_PER_CHUNK]; - static __u8 data[YAFFS_BYTES_PER_CHUNK]; - /* Might as well always allocate the larger size for */ -- /* dev->useNANDECC == true; */ -- static __u8 spare[sizeof(struct yaffs_NANDSpare)]; -+ /* dev->param.use_nand_ecc == true; */ -+ static __u8 spare[sizeof(struct yaffs_nand_spare)]; - -- dev->readChunkFromNAND(dev, chunkInNAND, data, (yaffs_Spare *) spare); -+ dev->param.read_chunk_fn(dev, nand_chunk, data, (yaffs_spare *) spare); - - if (!init) { - memset(cmpbuf, 0xff, YAFFS_BYTES_PER_CHUNK); -@@ -331,14 +329,14 @@ static int yaffs_CheckChunkErased(struct - * Functions for robustisizing - */ - --static void yaffs_HandleReadDataError(yaffs_Device *dev, int chunkInNAND) -+static void yaffs_handle_rd_data_error(yaffs_dev_t *dev, int nand_chunk) - { -- int blockInNAND = chunkInNAND / dev->nChunksPerBlock; -+ int flash_block = nand_chunk / dev->param.chunks_per_block; - - /* Mark the block for retirement */ -- yaffs_GetBlockInfo(dev, blockInNAND + dev->blockOffset)->needsRetiring = 1; -+ yaffs_get_block_info(dev, flash_block + dev->block_offset)->needs_retiring = 1; - T(YAFFS_TRACE_ERROR | YAFFS_TRACE_BAD_BLOCKS, -- (TSTR("**>>Block %d marked for retirement" TENDSTR), blockInNAND)); -+ (TSTR("**>>Block %d marked for retirement" TENDSTR), flash_block)); - - /* TODO: - * Just do a garbage collection on the affected block -@@ -348,44 +346,44 @@ static void yaffs_HandleReadDataError(ya - } - - #ifdef NOTYET --static void yaffs_CheckWrittenBlock(yaffs_Device *dev, int chunkInNAND) -+static void yaffs_check_written_block(yaffs_dev_t *dev, int nand_chunk) - { - } - --static void yaffs_HandleWriteChunkOk(yaffs_Device *dev, int chunkInNAND, -+static void yaffs_handle_chunk_wr_ok(yaffs_dev_t *dev, int nand_chunk, - const __u8 *data, -- const yaffs_Spare *spare) -+ const yaffs_spare *spare) - { - } - --static void yaffs_HandleUpdateChunk(yaffs_Device *dev, int chunkInNAND, -- const yaffs_Spare *spare) -+static void yaffs_handle_chunk_update(yaffs_dev_t *dev, int nand_chunk, -+ const yaffs_spare *spare) - { - } - --static void yaffs_HandleWriteChunkError(yaffs_Device *dev, int chunkInNAND) -+static void yaffs_handle_chunk_wr_error(yaffs_dev_t *dev, int nand_chunk) - { -- int blockInNAND = chunkInNAND / dev->nChunksPerBlock; -+ int flash_block = nand_chunk / dev->param.chunks_per_block; - - /* Mark the block for retirement */ -- yaffs_GetBlockInfo(dev, blockInNAND)->needsRetiring = 1; -+ yaffs_get_block_info(dev, flash_block)->needs_retiring = 1; - /* Delete the chunk */ -- yaffs_DeleteChunk(dev, chunkInNAND, 1, __LINE__); -+ yaffs_chunk_del(dev, nand_chunk, 1, __LINE__); - } - --static int yaffs_VerifyCompare(const __u8 *d0, const __u8 *d1, -- const yaffs_Spare *s0, const yaffs_Spare *s1) -+static int yaffs_verify_cmp(const __u8 *d0, const __u8 *d1, -+ const yaffs_spare *s0, const yaffs_spare *s1) - { - - if (memcmp(d0, d1, YAFFS_BYTES_PER_CHUNK) != 0 || -- s0->tagByte0 != s1->tagByte0 || -- s0->tagByte1 != s1->tagByte1 || -- s0->tagByte2 != s1->tagByte2 || -- s0->tagByte3 != s1->tagByte3 || -- s0->tagByte4 != s1->tagByte4 || -- s0->tagByte5 != s1->tagByte5 || -- s0->tagByte6 != s1->tagByte6 || -- s0->tagByte7 != s1->tagByte7 || -+ s0->tb0 != s1->tb0 || -+ s0->tb1 != s1->tb1 || -+ s0->tb2 != s1->tb2 || -+ s0->tb3 != s1->tb3 || -+ s0->tb4 != s1->tb4 || -+ s0->tb5 != s1->tb5 || -+ s0->tb6 != s1->tb6 || -+ s0->tb7 != s1->tb7 || - s0->ecc1[0] != s1->ecc1[0] || - s0->ecc1[1] != s1->ecc1[1] || - s0->ecc1[2] != s1->ecc1[2] || -@@ -398,53 +396,53 @@ static int yaffs_VerifyCompare(const __u - } - #endif /* NOTYET */ - --int yaffs_TagsCompatabilityWriteChunkWithTagsToNAND(yaffs_Device *dev, -- int chunkInNAND, -+int yaffs_tags_compat_wr(yaffs_dev_t *dev, -+ int nand_chunk, - const __u8 *data, -- const yaffs_ExtendedTags *eTags) -+ const yaffs_ext_tags *eTags) - { -- yaffs_Spare spare; -- yaffs_Tags tags; -+ yaffs_spare spare; -+ yaffs_tags_t tags; - -- yaffs_SpareInitialise(&spare); -+ yaffs_spare_init(&spare); - -- if (eTags->chunkDeleted) -- spare.pageStatus = 0; -+ if (eTags->is_deleted) -+ spare.page_status = 0; - else { -- tags.objectId = eTags->objectId; -- tags.chunkId = eTags->chunkId; -+ tags.obj_id = eTags->obj_id; -+ tags.chunk_id = eTags->chunk_id; - -- tags.byteCountLSB = eTags->byteCount & 0x3ff; -+ tags.n_bytes_lsb = eTags->n_bytes & 0x3ff; - -- if (dev->nDataBytesPerChunk >= 1024) -- tags.byteCountMSB = (eTags->byteCount >> 10) & 3; -+ if (dev->data_bytes_per_chunk >= 1024) -+ tags.n_bytes_msb = (eTags->n_bytes >> 10) & 3; - else -- tags.byteCountMSB = 3; -+ tags.n_bytes_msb = 3; - - -- tags.serialNumber = eTags->serialNumber; -+ tags.serial_number = eTags->serial_number; - -- if (!dev->useNANDECC && data) -- yaffs_CalcECC(data, &spare); -+ if (!dev->param.use_nand_ecc && data) -+ yaffs_calc_ecc(data, &spare); - -- yaffs_LoadTagsIntoSpare(&spare, &tags); -+ yaffs_load_tags_to_spare(&spare, &tags); - - } - -- return yaffs_WriteChunkToNAND(dev, chunkInNAND, data, &spare); -+ return yaffs_wr_nand(dev, nand_chunk, data, &spare); - } - --int yaffs_TagsCompatabilityReadChunkWithTagsFromNAND(yaffs_Device *dev, -- int chunkInNAND, -+int yaffs_tags_compat_rd(yaffs_dev_t *dev, -+ int nand_chunk, - __u8 *data, -- yaffs_ExtendedTags *eTags) -+ yaffs_ext_tags *eTags) - { - -- yaffs_Spare spare; -- yaffs_Tags tags; -- yaffs_ECCResult eccResult = YAFFS_ECC_RESULT_UNKNOWN; -+ yaffs_spare spare; -+ yaffs_tags_t tags; -+ yaffs_ecc_result ecc_result = YAFFS_ECC_RESULT_UNKNOWN; - -- static yaffs_Spare spareFF; -+ static yaffs_spare spareFF; - static int init; - - if (!init) { -@@ -452,33 +450,33 @@ int yaffs_TagsCompatabilityReadChunkWith - init = 1; - } - -- if (yaffs_ReadChunkFromNAND -- (dev, chunkInNAND, data, &spare, &eccResult, 1)) { -+ if (yaffs_rd_chunk_nand -+ (dev, nand_chunk, data, &spare, &ecc_result, 1)) { - /* eTags may be NULL */ - if (eTags) { - - int deleted = -- (yaffs_CountBits(spare.pageStatus) < 7) ? 1 : 0; -+ (yaffs_count_bits(spare.page_status) < 7) ? 1 : 0; - -- eTags->chunkDeleted = deleted; -- eTags->eccResult = eccResult; -- eTags->blockBad = 0; /* We're reading it */ -+ eTags->is_deleted = deleted; -+ eTags->ecc_result = ecc_result; -+ eTags->block_bad = 0; /* We're reading it */ - /* therefore it is not a bad block */ -- eTags->chunkUsed = -+ eTags->chunk_used = - (memcmp(&spareFF, &spare, sizeof(spareFF)) != - 0) ? 1 : 0; - -- if (eTags->chunkUsed) { -- yaffs_GetTagsFromSpare(dev, &spare, &tags); -+ if (eTags->chunk_used) { -+ yaffs_get_tags_from_spare(dev, &spare, &tags); - -- eTags->objectId = tags.objectId; -- eTags->chunkId = tags.chunkId; -- eTags->byteCount = tags.byteCountLSB; -+ eTags->obj_id = tags.obj_id; -+ eTags->chunk_id = tags.chunk_id; -+ eTags->n_bytes = tags.n_bytes_lsb; - -- if (dev->nDataBytesPerChunk >= 1024) -- eTags->byteCount |= (((unsigned) tags.byteCountMSB) << 10); -+ if (dev->data_bytes_per_chunk >= 1024) -+ eTags->n_bytes |= (((unsigned) tags.n_bytes_msb) << 10); - -- eTags->serialNumber = tags.serialNumber; -+ eTags->serial_number = tags.serial_number; - } - } - -@@ -488,49 +486,49 @@ int yaffs_TagsCompatabilityReadChunkWith - } - } - --int yaffs_TagsCompatabilityMarkNANDBlockBad(struct yaffs_DeviceStruct *dev, -- int blockInNAND) -+int yaffs_tags_compat_mark_bad(struct yaffs_dev_s *dev, -+ int flash_block) - { - -- yaffs_Spare spare; -+ yaffs_spare spare; - -- memset(&spare, 0xff, sizeof(yaffs_Spare)); -+ memset(&spare, 0xff, sizeof(yaffs_spare)); - -- spare.blockStatus = 'Y'; -+ spare.block_status = 'Y'; - -- yaffs_WriteChunkToNAND(dev, blockInNAND * dev->nChunksPerBlock, NULL, -+ yaffs_wr_nand(dev, flash_block * dev->param.chunks_per_block, NULL, - &spare); -- yaffs_WriteChunkToNAND(dev, blockInNAND * dev->nChunksPerBlock + 1, -+ yaffs_wr_nand(dev, flash_block * dev->param.chunks_per_block + 1, - NULL, &spare); - - return YAFFS_OK; - - } - --int yaffs_TagsCompatabilityQueryNANDBlock(struct yaffs_DeviceStruct *dev, -- int blockNo, -- yaffs_BlockState *state, -- __u32 *sequenceNumber) -+int yaffs_tags_compat_query_block(struct yaffs_dev_s *dev, -+ int block_no, -+ yaffs_block_state_t *state, -+ __u32 *seq_number) - { - -- yaffs_Spare spare0, spare1; -- static yaffs_Spare spareFF; -+ yaffs_spare spare0, spare1; -+ static yaffs_spare spareFF; - static int init; -- yaffs_ECCResult dummy; -+ yaffs_ecc_result dummy; - - if (!init) { - memset(&spareFF, 0xFF, sizeof(spareFF)); - init = 1; - } - -- *sequenceNumber = 0; -+ *seq_number = 0; - -- yaffs_ReadChunkFromNAND(dev, blockNo * dev->nChunksPerBlock, NULL, -+ yaffs_rd_chunk_nand(dev, block_no * dev->param.chunks_per_block, NULL, - &spare0, &dummy, 1); -- yaffs_ReadChunkFromNAND(dev, blockNo * dev->nChunksPerBlock + 1, NULL, -+ yaffs_rd_chunk_nand(dev, block_no * dev->param.chunks_per_block + 1, NULL, - &spare1, &dummy, 1); - -- if (yaffs_CountBits(spare0.blockStatus & spare1.blockStatus) < 7) -+ if (yaffs_count_bits(spare0.block_status & spare1.block_status) < 7) - *state = YAFFS_BLOCK_STATE_DEAD; - else if (memcmp(&spareFF, &spare0, sizeof(spareFF)) == 0) - *state = YAFFS_BLOCK_STATE_EMPTY; ---- a/fs/yaffs2/yaffs_tagscompat.h -+++ b/fs/yaffs2/yaffs_tagscompat.h -@@ -1,7 +1,7 @@ - /* - * YAFFS: Yet another Flash File System . A NAND-flash specific file system. - * -- * Copyright (C) 2002-2007 Aleph One Ltd. -+ * Copyright (C) 2002-2010 Aleph One Ltd. - * for Toby Churchill Ltd and Brightstar Engineering - * - * Created by Charles Manning -@@ -17,23 +17,23 @@ - #define __YAFFS_TAGSCOMPAT_H__ - - #include "yaffs_guts.h" --int yaffs_TagsCompatabilityWriteChunkWithTagsToNAND(yaffs_Device *dev, -- int chunkInNAND, -+int yaffs_tags_compat_wr(yaffs_dev_t *dev, -+ int nand_chunk, - const __u8 *data, -- const yaffs_ExtendedTags *tags); --int yaffs_TagsCompatabilityReadChunkWithTagsFromNAND(yaffs_Device *dev, -- int chunkInNAND, -+ const yaffs_ext_tags *tags); -+int yaffs_tags_compat_rd(yaffs_dev_t *dev, -+ int nand_chunk, - __u8 *data, -- yaffs_ExtendedTags *tags); --int yaffs_TagsCompatabilityMarkNANDBlockBad(struct yaffs_DeviceStruct *dev, -- int blockNo); --int yaffs_TagsCompatabilityQueryNANDBlock(struct yaffs_DeviceStruct *dev, -- int blockNo, -- yaffs_BlockState *state, -- __u32 *sequenceNumber); -+ yaffs_ext_tags *tags); -+int yaffs_tags_compat_mark_bad(struct yaffs_dev_s *dev, -+ int block_no); -+int yaffs_tags_compat_query_block(struct yaffs_dev_s *dev, -+ int block_no, -+ yaffs_block_state_t *state, -+ __u32 *seq_number); - --void yaffs_CalcTagsECC(yaffs_Tags *tags); --int yaffs_CheckECCOnTags(yaffs_Tags *tags); --int yaffs_CountBits(__u8 byte); -+void yaffs_calc_tags_ecc(yaffs_tags_t *tags); -+int yaffs_check_tags_ecc(yaffs_tags_t *tags); -+int yaffs_count_bits(__u8 byte); - - #endif ---- a/fs/yaffs2/yaffs_tagsvalidity.c -+++ b/fs/yaffs2/yaffs_tagsvalidity.c -@@ -1,7 +1,7 @@ - /* - * YAFFS: Yet Another Flash File System. A NAND-flash specific file system. - * -- * Copyright (C) 2002-2007 Aleph One Ltd. -+ * Copyright (C) 2002-2010 Aleph One Ltd. - * for Toby Churchill Ltd and Brightstar Engineering - * - * Created by Charles Manning -@@ -13,16 +13,16 @@ - - #include "yaffs_tagsvalidity.h" - --void yaffs_InitialiseTags(yaffs_ExtendedTags *tags) -+void yaffs_init_tags(yaffs_ext_tags *tags) - { -- memset(tags, 0, sizeof(yaffs_ExtendedTags)); -- tags->validMarker0 = 0xAAAAAAAA; -- tags->validMarker1 = 0x55555555; -+ memset(tags, 0, sizeof(yaffs_ext_tags)); -+ tags->validity1 = 0xAAAAAAAA; -+ tags->validty1 = 0x55555555; - } - --int yaffs_ValidateTags(yaffs_ExtendedTags *tags) -+int yaffs_validate_tags(yaffs_ext_tags *tags) - { -- return (tags->validMarker0 == 0xAAAAAAAA && -- tags->validMarker1 == 0x55555555); -+ return (tags->validity1 == 0xAAAAAAAA && -+ tags->validty1 == 0x55555555); - - } ---- a/fs/yaffs2/yaffs_tagsvalidity.h -+++ b/fs/yaffs2/yaffs_tagsvalidity.h -@@ -1,7 +1,7 @@ - /* - * YAFFS: Yet another Flash File System . A NAND-flash specific file system. - * -- * Copyright (C) 2002-2007 Aleph One Ltd. -+ * Copyright (C) 2002-2010 Aleph One Ltd. - * for Toby Churchill Ltd and Brightstar Engineering - * - * Created by Charles Manning -@@ -19,6 +19,6 @@ - - #include "yaffs_guts.h" - --void yaffs_InitialiseTags(yaffs_ExtendedTags *tags); --int yaffs_ValidateTags(yaffs_ExtendedTags *tags); -+void yaffs_init_tags(yaffs_ext_tags *tags); -+int yaffs_validate_tags(yaffs_ext_tags *tags); - #endif ---- /dev/null -+++ b/fs/yaffs2/yaffs_trace.h -@@ -0,0 +1,60 @@ -+/* -+ * YAFFS: Yet another Flash File System . A NAND-flash specific file system. -+ * -+ * Copyright (C) 2002-2010 Aleph One Ltd. -+ * for Toby Churchill Ltd and Brightstar Engineering -+ * -+ * Created by Charles Manning -+ * -+ * This program is free software; you can redistribute it and/or modify -+ * it under the terms of the GNU Lesser General Public License version 2.1 as -+ * published by the Free Software Foundation. -+ * -+ * Note: Only YAFFS headers are LGPL, YAFFS C code is covered by GPL. -+ */ -+ -+ -+#ifndef __YTRACE_H__ -+#define __YTRACE_H__ -+ -+extern unsigned int yaffs_trace_mask; -+extern unsigned int yaffs_wr_attempts; -+ -+/* -+ * Tracing flags. -+ * The flags masked in YAFFS_TRACE_ALWAYS are always traced. -+ */ -+ -+#define YAFFS_TRACE_OS 0x00000002 -+#define YAFFS_TRACE_ALLOCATE 0x00000004 -+#define YAFFS_TRACE_SCAN 0x00000008 -+#define YAFFS_TRACE_BAD_BLOCKS 0x00000010 -+#define YAFFS_TRACE_ERASE 0x00000020 -+#define YAFFS_TRACE_GC 0x00000040 -+#define YAFFS_TRACE_WRITE 0x00000080 -+#define YAFFS_TRACE_TRACING 0x00000100 -+#define YAFFS_TRACE_DELETION 0x00000200 -+#define YAFFS_TRACE_BUFFERS 0x00000400 -+#define YAFFS_TRACE_NANDACCESS 0x00000800 -+#define YAFFS_TRACE_GC_DETAIL 0x00001000 -+#define YAFFS_TRACE_SCAN_DEBUG 0x00002000 -+#define YAFFS_TRACE_MTD 0x00004000 -+#define YAFFS_TRACE_CHECKPOINT 0x00008000 -+ -+#define YAFFS_TRACE_VERIFY 0x00010000 -+#define YAFFS_TRACE_VERIFY_NAND 0x00020000 -+#define YAFFS_TRACE_VERIFY_FULL 0x00040000 -+#define YAFFS_TRACE_VERIFY_ALL 0x000F0000 -+ -+#define YAFFS_TRACE_SYNC 0x00100000 -+#define YAFFS_TRACE_BACKGROUND 0x00200000 -+#define YAFFS_TRACE_LOCK 0x00400000 -+ -+#define YAFFS_TRACE_ERROR 0x40000000 -+#define YAFFS_TRACE_BUG 0x80000000 -+#define YAFFS_TRACE_ALWAYS 0xF0000000 -+ -+ -+#define T(mask, p) do { if ((mask) & (yaffs_trace_mask | YAFFS_TRACE_ALWAYS)) TOUT(p); } while (0) -+ -+#endif ---- /dev/null -+++ b/fs/yaffs2/yaffs_verify.c -@@ -0,0 +1,626 @@ -+/* -+ * YAFFS: Yet Another Flash File System. A NAND-flash specific file system. -+ * -+ * Copyright (C) 2002-2010 Aleph One Ltd. -+ * for Toby Churchill Ltd and Brightstar Engineering -+ * -+ * Created by Charles Manning -+ * -+ * This program is free software; you can redistribute it and/or modify -+ * it under the terms of the GNU General Public License version 2 as -+ * published by the Free Software Foundation. -+ */ -+ -+ -+#include "yaffs_verify.h" -+#include "yaffs_trace.h" -+#include "yaffs_bitmap.h" -+#include "yaffs_getblockinfo.h" -+#include "yaffs_nand.h" -+ -+int yaffs_skip_verification(yaffs_dev_t *dev) -+{ -+ dev=dev; -+ return !(yaffs_trace_mask & (YAFFS_TRACE_VERIFY | YAFFS_TRACE_VERIFY_FULL)); -+} -+ -+static int yaffs_skip_full_verification(yaffs_dev_t *dev) -+{ -+ dev=dev; -+ return !(yaffs_trace_mask & (YAFFS_TRACE_VERIFY_FULL)); -+} -+ -+static int yaffs_skip_nand_verification(yaffs_dev_t *dev) -+{ -+ dev=dev; -+ return !(yaffs_trace_mask & (YAFFS_TRACE_VERIFY_NAND)); -+} -+ -+ -+static const char *block_stateName[] = { -+"Unknown", -+"Needs scanning", -+"Scanning", -+"Empty", -+"Allocating", -+"Full", -+"Dirty", -+"Checkpoint", -+"Collecting", -+"Dead" -+}; -+ -+ -+void yaffs_verify_blk(yaffs_dev_t *dev, yaffs_block_info_t *bi, int n) -+{ -+ int actuallyUsed; -+ int inUse; -+ -+ if (yaffs_skip_verification(dev)) -+ return; -+ -+ /* Report illegal runtime states */ -+ if (bi->block_state >= YAFFS_NUMBER_OF_BLOCK_STATES) -+ T(YAFFS_TRACE_VERIFY, (TSTR("Block %d has undefined state %d"TENDSTR), n, bi->block_state)); -+ -+ switch (bi->block_state) { -+ case YAFFS_BLOCK_STATE_UNKNOWN: -+ case YAFFS_BLOCK_STATE_SCANNING: -+ case YAFFS_BLOCK_STATE_NEEDS_SCANNING: -+ T(YAFFS_TRACE_VERIFY, (TSTR("Block %d has bad run-state %s"TENDSTR), -+ n, block_stateName[bi->block_state])); -+ } -+ -+ /* Check pages in use and soft deletions are legal */ -+ -+ actuallyUsed = bi->pages_in_use - bi->soft_del_pages; -+ -+ if (bi->pages_in_use < 0 || bi->pages_in_use > dev->param.chunks_per_block || -+ bi->soft_del_pages < 0 || bi->soft_del_pages > dev->param.chunks_per_block || -+ actuallyUsed < 0 || actuallyUsed > dev->param.chunks_per_block) -+ T(YAFFS_TRACE_VERIFY, (TSTR("Block %d has illegal values pages_in_used %d soft_del_pages %d"TENDSTR), -+ n, bi->pages_in_use, bi->soft_del_pages)); -+ -+ -+ /* Check chunk bitmap legal */ -+ inUse = yaffs_count_chunk_bits(dev, n); -+ if (inUse != bi->pages_in_use) -+ T(YAFFS_TRACE_VERIFY, (TSTR("Block %d has inconsistent values pages_in_use %d counted chunk bits %d"TENDSTR), -+ n, bi->pages_in_use, inUse)); -+ -+} -+ -+ -+ -+void yaffs_verify_collected_blk(yaffs_dev_t *dev, yaffs_block_info_t *bi, int n) -+{ -+ yaffs_verify_blk(dev, bi, n); -+ -+ /* After collection the block should be in the erased state */ -+ -+ if (bi->block_state != YAFFS_BLOCK_STATE_COLLECTING && -+ bi->block_state != YAFFS_BLOCK_STATE_EMPTY) { -+ T(YAFFS_TRACE_ERROR, (TSTR("Block %d is in state %d after gc, should be erased"TENDSTR), -+ n, bi->block_state)); -+ } -+} -+ -+void yaffs_verify_blocks(yaffs_dev_t *dev) -+{ -+ int i; -+ int nBlocksPerState[YAFFS_NUMBER_OF_BLOCK_STATES]; -+ int nIllegalBlockStates = 0; -+ -+ if (yaffs_skip_verification(dev)) -+ return; -+ -+ memset(nBlocksPerState, 0, sizeof(nBlocksPerState)); -+ -+ for (i = dev->internal_start_block; i <= dev->internal_end_block; i++) { -+ yaffs_block_info_t *bi = yaffs_get_block_info(dev, i); -+ yaffs_verify_blk(dev, bi, i); -+ -+ if (bi->block_state < YAFFS_NUMBER_OF_BLOCK_STATES) -+ nBlocksPerState[bi->block_state]++; -+ else -+ nIllegalBlockStates++; -+ } -+ -+ T(YAFFS_TRACE_VERIFY, (TSTR(""TENDSTR))); -+ T(YAFFS_TRACE_VERIFY, (TSTR("Block summary"TENDSTR))); -+ -+ T(YAFFS_TRACE_VERIFY, (TSTR("%d blocks have illegal states"TENDSTR), nIllegalBlockStates)); -+ if (nBlocksPerState[YAFFS_BLOCK_STATE_ALLOCATING] > 1) -+ T(YAFFS_TRACE_VERIFY, (TSTR("Too many allocating blocks"TENDSTR))); -+ -+ for (i = 0; i < YAFFS_NUMBER_OF_BLOCK_STATES; i++) -+ T(YAFFS_TRACE_VERIFY, -+ (TSTR("%s %d blocks"TENDSTR), -+ block_stateName[i], nBlocksPerState[i])); -+ -+ if (dev->blocks_in_checkpt != nBlocksPerState[YAFFS_BLOCK_STATE_CHECKPOINT]) -+ T(YAFFS_TRACE_VERIFY, -+ (TSTR("Checkpoint block count wrong dev %d count %d"TENDSTR), -+ dev->blocks_in_checkpt, nBlocksPerState[YAFFS_BLOCK_STATE_CHECKPOINT])); -+ -+ if (dev->n_erased_blocks != nBlocksPerState[YAFFS_BLOCK_STATE_EMPTY]) -+ T(YAFFS_TRACE_VERIFY, -+ (TSTR("Erased block count wrong dev %d count %d"TENDSTR), -+ dev->n_erased_blocks, nBlocksPerState[YAFFS_BLOCK_STATE_EMPTY])); -+ -+ if (nBlocksPerState[YAFFS_BLOCK_STATE_COLLECTING] > 1) -+ T(YAFFS_TRACE_VERIFY, -+ (TSTR("Too many collecting blocks %d (max is 1)"TENDSTR), -+ nBlocksPerState[YAFFS_BLOCK_STATE_COLLECTING])); -+ -+ T(YAFFS_TRACE_VERIFY, (TSTR(""TENDSTR))); -+ -+} -+ -+/* -+ * Verify the object header. oh must be valid, but obj and tags may be NULL in which -+ * case those tests will not be performed. -+ */ -+void yaffs_verify_oh(yaffs_obj_t *obj, yaffs_obj_header *oh, yaffs_ext_tags *tags, int parentCheck) -+{ -+ if (obj && yaffs_skip_verification(obj->my_dev)) -+ return; -+ -+ if (!(tags && obj && oh)) { -+ T(YAFFS_TRACE_VERIFY, -+ (TSTR("Verifying object header tags %p obj %p oh %p"TENDSTR), -+ tags, obj, oh)); -+ return; -+ } -+ -+ if (oh->type <= YAFFS_OBJECT_TYPE_UNKNOWN || -+ oh->type > YAFFS_OBJECT_TYPE_MAX) -+ T(YAFFS_TRACE_VERIFY, -+ (TSTR("Obj %d header type is illegal value 0x%x"TENDSTR), -+ tags->obj_id, oh->type)); -+ -+ if (tags->obj_id != obj->obj_id) -+ T(YAFFS_TRACE_VERIFY, -+ (TSTR("Obj %d header mismatch obj_id %d"TENDSTR), -+ tags->obj_id, obj->obj_id)); -+ -+ -+ /* -+ * Check that the object's parent ids match if parentCheck requested. -+ * -+ * Tests do not apply to the root object. -+ */ -+ -+ if (parentCheck && tags->obj_id > 1 && !obj->parent) -+ T(YAFFS_TRACE_VERIFY, -+ (TSTR("Obj %d header mismatch parent_id %d obj->parent is NULL"TENDSTR), -+ tags->obj_id, oh->parent_obj_id)); -+ -+ if (parentCheck && obj->parent && -+ oh->parent_obj_id != obj->parent->obj_id && -+ (oh->parent_obj_id != YAFFS_OBJECTID_UNLINKED || -+ obj->parent->obj_id != YAFFS_OBJECTID_DELETED)) -+ T(YAFFS_TRACE_VERIFY, -+ (TSTR("Obj %d header mismatch parent_id %d parent_obj_id %d"TENDSTR), -+ tags->obj_id, oh->parent_obj_id, obj->parent->obj_id)); -+ -+ if (tags->obj_id > 1 && oh->name[0] == 0) /* Null name */ -+ T(YAFFS_TRACE_VERIFY, -+ (TSTR("Obj %d header name is NULL"TENDSTR), -+ obj->obj_id)); -+ -+ if (tags->obj_id > 1 && ((__u8)(oh->name[0])) == 0xff) /* Trashed name */ -+ T(YAFFS_TRACE_VERIFY, -+ (TSTR("Obj %d header name is 0xFF"TENDSTR), -+ obj->obj_id)); -+} -+ -+ -+#if 0 -+/* Not being used, but don't want to throw away yet */ -+int yaffs_verify_tnode_worker(yaffs_obj_t *obj, yaffs_tnode_t *tn, -+ __u32 level, int chunk_offset) -+{ -+ int i; -+ yaffs_dev_t *dev = obj->my_dev; -+ int ok = 1; -+ -+ if (tn) { -+ if (level > 0) { -+ -+ for (i = 0; i < YAFFS_NTNODES_INTERNAL && ok; i++) { -+ if (tn->internal[i]) { -+ ok = yaffs_verify_tnode_worker(obj, -+ tn->internal[i], -+ level - 1, -+ (chunk_offset<obj_id; -+ -+ chunk_offset <<= YAFFS_TNODES_LEVEL0_BITS; -+ -+ for (i = 0; i < YAFFS_NTNODES_LEVEL0; i++) { -+ __u32 theChunk = yaffs_get_group_base(dev, tn, i); -+ -+ if (theChunk > 0) { -+ /* T(~0,(TSTR("verifying (%d:%d) %d"TENDSTR),tags.obj_id,tags.chunk_id,theChunk)); */ -+ yaffs_rd_chunk_tags_nand(dev, theChunk, NULL, &tags); -+ if (tags.obj_id != obj_id || tags.chunk_id != chunk_offset) { -+ T(~0, (TSTR("Object %d chunk_id %d NAND mismatch chunk %d tags (%d:%d)"TENDSTR), -+ obj_id, chunk_offset, theChunk, -+ tags.obj_id, tags.chunk_id)); -+ } -+ } -+ chunk_offset++; -+ } -+ } -+ } -+ -+ return ok; -+ -+} -+ -+#endif -+ -+void yaffs_verify_file(yaffs_obj_t *obj) -+{ -+ int requiredTallness; -+ int actualTallness; -+ __u32 lastChunk; -+ __u32 x; -+ __u32 i; -+ yaffs_dev_t *dev; -+ yaffs_ext_tags tags; -+ yaffs_tnode_t *tn; -+ __u32 obj_id; -+ -+ if (!obj) -+ return; -+ -+ if (yaffs_skip_verification(obj->my_dev)) -+ return; -+ -+ dev = obj->my_dev; -+ obj_id = obj->obj_id; -+ -+ /* Check file size is consistent with tnode depth */ -+ lastChunk = obj->variant.file_variant.file_size / dev->data_bytes_per_chunk + 1; -+ x = lastChunk >> YAFFS_TNODES_LEVEL0_BITS; -+ requiredTallness = 0; -+ while (x > 0) { -+ x >>= YAFFS_TNODES_INTERNAL_BITS; -+ requiredTallness++; -+ } -+ -+ actualTallness = obj->variant.file_variant.top_level; -+ -+ /* Check that the chunks in the tnode tree are all correct. -+ * We do this by scanning through the tnode tree and -+ * checking the tags for every chunk match. -+ */ -+ -+ if (yaffs_skip_nand_verification(dev)) -+ return; -+ -+ for (i = 1; i <= lastChunk; i++) { -+ tn = yaffs_find_tnode_0(dev, &obj->variant.file_variant, i); -+ -+ if (tn) { -+ __u32 theChunk = yaffs_get_group_base(dev, tn, i); -+ if (theChunk > 0) { -+ /* T(~0,(TSTR("verifying (%d:%d) %d"TENDSTR),obj_id,i,theChunk)); */ -+ yaffs_rd_chunk_tags_nand(dev, theChunk, NULL, &tags); -+ if (tags.obj_id != obj_id || tags.chunk_id != i) { -+ T(~0, (TSTR("Object %d chunk_id %d NAND mismatch chunk %d tags (%d:%d)"TENDSTR), -+ obj_id, i, theChunk, -+ tags.obj_id, tags.chunk_id)); -+ } -+ } -+ } -+ } -+} -+ -+ -+void yaffs_verify_link(yaffs_obj_t *obj) -+{ -+ if (obj && yaffs_skip_verification(obj->my_dev)) -+ return; -+ -+ /* Verify sane equivalent object */ -+} -+ -+void yaffs_verify_symlink(yaffs_obj_t *obj) -+{ -+ if (obj && yaffs_skip_verification(obj->my_dev)) -+ return; -+ -+ /* Verify symlink string */ -+} -+ -+void yaffs_verify_special(yaffs_obj_t *obj) -+{ -+ if (obj && yaffs_skip_verification(obj->my_dev)) -+ return; -+} -+ -+void yaffs_verify_obj(yaffs_obj_t *obj) -+{ -+ yaffs_dev_t *dev; -+ -+ __u32 chunkMin; -+ __u32 chunkMax; -+ -+ __u32 chunk_idOk; -+ __u32 chunkInRange; -+ __u32 chunkShouldNotBeDeleted; -+ __u32 chunkValid; -+ -+ if (!obj) -+ return; -+ -+ if (obj->being_created) -+ return; -+ -+ dev = obj->my_dev; -+ -+ if (yaffs_skip_verification(dev)) -+ return; -+ -+ /* Check sane object header chunk */ -+ -+ chunkMin = dev->internal_start_block * dev->param.chunks_per_block; -+ chunkMax = (dev->internal_end_block+1) * dev->param.chunks_per_block - 1; -+ -+ chunkInRange = (((unsigned)(obj->hdr_chunk)) >= chunkMin && ((unsigned)(obj->hdr_chunk)) <= chunkMax); -+ chunk_idOk = chunkInRange || (obj->hdr_chunk == 0); -+ chunkValid = chunkInRange && -+ yaffs_check_chunk_bit(dev, -+ obj->hdr_chunk / dev->param.chunks_per_block, -+ obj->hdr_chunk % dev->param.chunks_per_block); -+ chunkShouldNotBeDeleted = chunkInRange && !chunkValid; -+ -+ if (!obj->fake && -+ (!chunk_idOk || chunkShouldNotBeDeleted)) { -+ T(YAFFS_TRACE_VERIFY, -+ (TSTR("Obj %d has chunk_id %d %s %s"TENDSTR), -+ obj->obj_id, obj->hdr_chunk, -+ chunk_idOk ? "" : ",out of range", -+ chunkShouldNotBeDeleted ? ",marked as deleted" : "")); -+ } -+ -+ if (chunkValid && !yaffs_skip_nand_verification(dev)) { -+ yaffs_ext_tags tags; -+ yaffs_obj_header *oh; -+ __u8 *buffer = yaffs_get_temp_buffer(dev, __LINE__); -+ -+ oh = (yaffs_obj_header *)buffer; -+ -+ yaffs_rd_chunk_tags_nand(dev, obj->hdr_chunk, buffer, -+ &tags); -+ -+ yaffs_verify_oh(obj, oh, &tags, 1); -+ -+ yaffs_release_temp_buffer(dev, buffer, __LINE__); -+ } -+ -+ /* Verify it has a parent */ -+ if (obj && !obj->fake && -+ (!obj->parent || obj->parent->my_dev != dev)) { -+ T(YAFFS_TRACE_VERIFY, -+ (TSTR("Obj %d has parent pointer %p which does not look like an object"TENDSTR), -+ obj->obj_id, obj->parent)); -+ } -+ -+ /* Verify parent is a directory */ -+ if (obj->parent && obj->parent->variant_type != YAFFS_OBJECT_TYPE_DIRECTORY) { -+ T(YAFFS_TRACE_VERIFY, -+ (TSTR("Obj %d's parent is not a directory (type %d)"TENDSTR), -+ obj->obj_id, obj->parent->variant_type)); -+ } -+ -+ switch (obj->variant_type) { -+ case YAFFS_OBJECT_TYPE_FILE: -+ yaffs_verify_file(obj); -+ break; -+ case YAFFS_OBJECT_TYPE_SYMLINK: -+ yaffs_verify_symlink(obj); -+ break; -+ case YAFFS_OBJECT_TYPE_DIRECTORY: -+ yaffs_verify_dir(obj); -+ break; -+ case YAFFS_OBJECT_TYPE_HARDLINK: -+ yaffs_verify_link(obj); -+ break; -+ case YAFFS_OBJECT_TYPE_SPECIAL: -+ yaffs_verify_special(obj); -+ break; -+ case YAFFS_OBJECT_TYPE_UNKNOWN: -+ default: -+ T(YAFFS_TRACE_VERIFY, -+ (TSTR("Obj %d has illegaltype %d"TENDSTR), -+ obj->obj_id, obj->variant_type)); -+ break; -+ } -+} -+ -+void yaffs_verify_objects(yaffs_dev_t *dev) -+{ -+ yaffs_obj_t *obj; -+ int i; -+ struct ylist_head *lh; -+ -+ if (yaffs_skip_verification(dev)) -+ return; -+ -+ /* Iterate through the objects in each hash entry */ -+ -+ for (i = 0; i < YAFFS_NOBJECT_BUCKETS; i++) { -+ ylist_for_each(lh, &dev->obj_bucket[i].list) { -+ if (lh) { -+ obj = ylist_entry(lh, yaffs_obj_t, hash_link); -+ yaffs_verify_obj(obj); -+ } -+ } -+ } -+} -+ -+ -+void yaffs_verify_obj_in_dir(yaffs_obj_t *obj) -+{ -+ struct ylist_head *lh; -+ yaffs_obj_t *listObj; -+ -+ int count = 0; -+ -+ if (!obj) { -+ T(YAFFS_TRACE_ALWAYS, (TSTR("No object to verify" TENDSTR))); -+ YBUG(); -+ return; -+ } -+ -+ if (yaffs_skip_verification(obj->my_dev)) -+ return; -+ -+ if (!obj->parent) { -+ T(YAFFS_TRACE_ALWAYS, (TSTR("Object does not have parent" TENDSTR))); -+ YBUG(); -+ return; -+ } -+ -+ if (obj->parent->variant_type != YAFFS_OBJECT_TYPE_DIRECTORY) { -+ T(YAFFS_TRACE_ALWAYS, (TSTR("Parent is not directory" TENDSTR))); -+ YBUG(); -+ } -+ -+ /* Iterate through the objects in each hash entry */ -+ -+ ylist_for_each(lh, &obj->parent->variant.dir_variant.children) { -+ if (lh) { -+ listObj = ylist_entry(lh, yaffs_obj_t, siblings); -+ yaffs_verify_obj(listObj); -+ if (obj == listObj) -+ count++; -+ } -+ } -+ -+ if (count != 1) { -+ T(YAFFS_TRACE_ALWAYS, (TSTR("Object in directory %d times" TENDSTR), count)); -+ YBUG(); -+ } -+} -+ -+void yaffs_verify_dir(yaffs_obj_t *directory) -+{ -+ struct ylist_head *lh; -+ yaffs_obj_t *listObj; -+ -+ if (!directory) { -+ YBUG(); -+ return; -+ } -+ -+ if (yaffs_skip_full_verification(directory->my_dev)) -+ return; -+ -+ if (directory->variant_type != YAFFS_OBJECT_TYPE_DIRECTORY) { -+ T(YAFFS_TRACE_ALWAYS, (TSTR("Directory has wrong type: %d" TENDSTR), directory->variant_type)); -+ YBUG(); -+ } -+ -+ /* Iterate through the objects in each hash entry */ -+ -+ ylist_for_each(lh, &directory->variant.dir_variant.children) { -+ if (lh) { -+ listObj = ylist_entry(lh, yaffs_obj_t, siblings); -+ if (listObj->parent != directory) { -+ T(YAFFS_TRACE_ALWAYS, (TSTR("Object in directory list has wrong parent %p" TENDSTR), listObj->parent)); -+ YBUG(); -+ } -+ yaffs_verify_obj_in_dir(listObj); -+ } -+ } -+} -+ -+static int yaffs_free_verification_failures; -+ -+void yaffs_verify_free_chunks(yaffs_dev_t *dev) -+{ -+ int counted; -+ int difference; -+ -+ if (yaffs_skip_verification(dev)) -+ return; -+ -+ counted = yaffs_count_free_chunks(dev); -+ -+ difference = dev->n_free_chunks - counted; -+ -+ if (difference) { -+ T(YAFFS_TRACE_ALWAYS, -+ (TSTR("Freechunks verification failure %d %d %d" TENDSTR), -+ dev->n_free_chunks, counted, difference)); -+ yaffs_free_verification_failures++; -+ } -+} -+ -+int yaffs_verify_file_sane(yaffs_obj_t *in) -+{ -+#if 0 -+ int chunk; -+ int n_chunks; -+ int fSize; -+ int failed = 0; -+ int obj_id; -+ yaffs_tnode_t *tn; -+ yaffs_tags_t localTags; -+ yaffs_tags_t *tags = &localTags; -+ int theChunk; -+ int is_deleted; -+ -+ if (in->variant_type != YAFFS_OBJECT_TYPE_FILE) -+ return YAFFS_FAIL; -+ -+ obj_id = in->obj_id; -+ fSize = in->variant.file_variant.file_size; -+ n_chunks = -+ (fSize + in->my_dev->data_bytes_per_chunk - 1) / in->my_dev->data_bytes_per_chunk; -+ -+ for (chunk = 1; chunk <= n_chunks; chunk++) { -+ tn = yaffs_find_tnode_0(in->my_dev, &in->variant.file_variant, -+ chunk); -+ -+ if (tn) { -+ -+ theChunk = yaffs_get_group_base(dev, tn, chunk); -+ -+ if (yaffs_check_chunk_bits -+ (dev, theChunk / dev->param.chunks_per_block, -+ theChunk % dev->param.chunks_per_block)) { -+ -+ yaffs_rd_chunk_tags_nand(in->my_dev, theChunk, -+ tags, -+ &is_deleted); -+ if (yaffs_tags_match -+ (tags, in->obj_id, chunk, is_deleted)) { -+ /* found it; */ -+ -+ } -+ } else { -+ -+ failed = 1; -+ } -+ -+ } else { -+ /* T(("No level 0 found for %d\n", chunk)); */ -+ } -+ } -+ -+ return failed ? YAFFS_FAIL : YAFFS_OK; -+#else -+ in=in; -+ return YAFFS_OK; -+#endif -+} ---- /dev/null -+++ b/fs/yaffs2/yaffs_verify.h -@@ -0,0 +1,39 @@ -+/* -+ * YAFFS: Yet Another Flash File System. A NAND-flash specific file system. -+ * -+ * Copyright (C) 2002-2010 Aleph One Ltd. -+ * for Toby Churchill Ltd and Brightstar Engineering -+ * -+ * Created by Charles Manning -+ * -+ * This program is free software; you can redistribute it and/or modify -+ * it under the terms of the GNU General Public License version 2 as -+ * published by the Free Software Foundation. -+ */ -+ -+#ifndef __YAFFS_VERIFY_H__ -+#define __YAFFS_VERIFY_H__ -+ -+#include "yaffs_guts.h" -+ -+void yaffs_verify_blk(yaffs_dev_t *dev, yaffs_block_info_t *bi, int n); -+void yaffs_verify_collected_blk(yaffs_dev_t *dev, yaffs_block_info_t *bi, int n); -+void yaffs_verify_blocks(yaffs_dev_t *dev); -+ -+void yaffs_verify_oh(yaffs_obj_t *obj, yaffs_obj_header *oh, yaffs_ext_tags *tags, int parentCheck); -+void yaffs_verify_file(yaffs_obj_t *obj); -+void yaffs_verify_link(yaffs_obj_t *obj); -+void yaffs_verify_symlink(yaffs_obj_t *obj); -+void yaffs_verify_special(yaffs_obj_t *obj); -+void yaffs_verify_obj(yaffs_obj_t *obj); -+void yaffs_verify_objects(yaffs_dev_t *dev); -+void yaffs_verify_obj_in_dir(yaffs_obj_t *obj); -+void yaffs_verify_dir(yaffs_obj_t *directory); -+void yaffs_verify_free_chunks(yaffs_dev_t *dev); -+ -+int yaffs_verify_file_sane(yaffs_obj_t *obj); -+ -+int yaffs_skip_verification(yaffs_dev_t *dev); -+ -+#endif -+ ---- /dev/null -+++ b/fs/yaffs2/yaffs_vfs_glue.c -@@ -0,0 +1,3576 @@ -+/* -+ * YAFFS: Yet Another Flash File System. A NAND-flash specific file system. -+ * -+ * Copyright (C) 2002-2010 Aleph One Ltd. -+ * for Toby Churchill Ltd and Brightstar Engineering -+ * -+ * Created by Charles Manning -+ * Acknowledgements: -+ * Luc van OostenRyck for numerous patches. -+ * Nick Bane for numerous patches. -+ * Nick Bane for 2.5/2.6 integration. -+ * Andras Toth for mknod rdev issue. -+ * Michael Fischer for finding the problem with inode inconsistency. -+ * Some code bodily lifted from JFFS -+ * -+ * This program is free software; you can redistribute it and/or modify -+ * it under the terms of the GNU General Public License version 2 as -+ * published by the Free Software Foundation. -+ */ -+ -+/* -+ * -+ * This is the file system front-end to YAFFS that hooks it up to -+ * the VFS. -+ * -+ * Special notes: -+ * >> 2.4: sb->u.generic_sbp points to the yaffs_dev_t associated with -+ * this superblock -+ * >> 2.6: sb->s_fs_info points to the yaffs_dev_t associated with this -+ * superblock -+ * >> inode->u.generic_ip points to the associated yaffs_obj_t. -+ */ -+ -+/* -+ * There are two variants of the VFS glue code. This variant should compile -+ * for any version of Linux. -+ */ -+#include -+ -+#if (LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 10)) -+#define YAFFS_COMPILE_BACKGROUND -+#if (LINUX_VERSION_CODE >= KERNEL_VERSION(2,6, 23)) -+#define YAFFS_COMPILE_FREEZER -+#endif -+#endif -+ -+#if (LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,28)) -+#define YAFFS_COMPILE_EXPORTFS -+#endif -+ -+#if (LINUX_VERSION_CODE > KERNEL_VERSION(2,6,35)) -+#define YAFFS_USE_SETATTR_COPY -+#define YAFFS_USE_TRUNCATE_SETSIZE -+#endif -+#if (LINUX_VERSION_CODE > KERNEL_VERSION(2,6,35)) -+#define YAFFS_HAS_EVICT_INODE -+#endif -+ -+#if (LINUX_VERSION_CODE > KERNEL_VERSION(2,6,13)) -+#define YAFFS_NEW_FOLLOW_LINK 1 -+#else -+#define YAFFS_NEW_FOLLOW_LINK 0 -+#endif -+ -+#if (LINUX_VERSION_CODE < KERNEL_VERSION(2, 6, 19)) -+#include -+#endif -+ -+#include -+#include -+#include -+#include -+#include -+#include -+#include -+#include -+#include -+#include -+#include -+#include -+ -+#if (YAFFS_NEW_FOLLOW_LINK == 1) -+#include -+#endif -+ -+#ifdef YAFFS_COMPILE_EXPORTFS -+#include -+#endif -+ -+#ifdef YAFFS_COMPILE_BACKGROUND -+#include -+#include -+#endif -+#ifdef YAFFS_COMPILE_FREEZER -+#include -+#endif -+ -+#include -+ -+#if (LINUX_VERSION_CODE > KERNEL_VERSION(2, 5, 0)) -+ -+#include -+ -+#define UnlockPage(p) unlock_page(p) -+#define Page_Uptodate(page) test_bit(PG_uptodate, &(page)->flags) -+ -+/* FIXME: use sb->s_id instead ? */ -+#define yaffs_devname(sb, buf) bdevname(sb->s_bdev, buf) -+ -+#else -+ -+#include -+#define BDEVNAME_SIZE 0 -+#define yaffs_devname(sb, buf) kdevname(sb->s_dev) -+ -+#if (LINUX_VERSION_CODE < KERNEL_VERSION(2, 5, 0)) -+/* added NCB 26/5/2006 for 2.4.25-vrs2-tcl1 kernel */ -+#define __user -+#endif -+ -+#endif -+ -+#if (LINUX_VERSION_CODE < KERNEL_VERSION(2, 6, 26)) -+#define YPROC_ROOT (&proc_root) -+#else -+#define YPROC_ROOT NULL -+#endif -+ -+#if (LINUX_VERSION_CODE < KERNEL_VERSION(2,6,26)) -+#define Y_INIT_TIMER(a) init_timer(a) -+#else -+#define Y_INIT_TIMER(a) init_timer_on_stack(a) -+#endif -+ -+#if (LINUX_VERSION_CODE > KERNEL_VERSION(2, 6, 17)) -+#define WRITE_SIZE_STR "writesize" -+#define WRITE_SIZE(mtd) ((mtd)->writesize) -+#else -+#define WRITE_SIZE_STR "oobblock" -+#define WRITE_SIZE(mtd) ((mtd)->oobblock) -+#endif -+ -+#if (LINUX_VERSION_CODE > KERNEL_VERSION(2, 6, 27)) -+#define YAFFS_USE_WRITE_BEGIN_END 1 -+#else -+#define YAFFS_USE_WRITE_BEGIN_END 0 -+#endif -+ -+#if (LINUX_VERSION_CODE > KERNEL_VERSION(2, 6, 28)) -+static uint32_t YCALCBLOCKS(uint64_t partition_size, uint32_t block_size) -+{ -+ uint64_t result = partition_size; -+ do_div(result, block_size); -+ return (uint32_t)result; -+} -+#else -+#define YCALCBLOCKS(s, b) ((s)/(b)) -+#endif -+ -+#include -+#include -+ -+#include "yportenv.h" -+#include "yaffs_trace.h" -+#include "yaffs_guts.h" -+ -+#include "yaffs_linux.h" -+ -+#include "yaffs_mtdif.h" -+#include "yaffs_mtdif1.h" -+#include "yaffs_mtdif2.h" -+ -+unsigned int yaffs_trace_mask = YAFFS_TRACE_BAD_BLOCKS | YAFFS_TRACE_ALWAYS; -+unsigned int yaffs_wr_attempts = YAFFS_WR_ATTEMPTS; -+unsigned int yaffs_auto_checkpoint = 1; -+unsigned int yaffs_gc_control = 1; -+unsigned int yaffs_bg_enable = 1; -+ -+/* Module Parameters */ -+#if (LINUX_VERSION_CODE > KERNEL_VERSION(2, 5, 0)) -+module_param(yaffs_trace_mask, uint, 0644); -+module_param(yaffs_wr_attempts, uint, 0644); -+module_param(yaffs_auto_checkpoint, uint, 0644); -+module_param(yaffs_gc_control, uint, 0644); -+module_param(yaffs_bg_enable, uint, 0644); -+#else -+MODULE_PARM(yaffs_trace_mask, "i"); -+MODULE_PARM(yaffs_wr_attempts, "i"); -+MODULE_PARM(yaffs_auto_checkpoint, "i"); -+MODULE_PARM(yaffs_gc_control, "i"); -+#endif -+ -+#if (LINUX_VERSION_CODE < KERNEL_VERSION(2, 6, 25)) -+/* use iget and read_inode */ -+#define Y_IGET(sb, inum) iget((sb), (inum)) -+static void yaffs_read_inode(struct inode *inode); -+ -+#else -+/* Call local equivalent */ -+#define YAFFS_USE_OWN_IGET -+#define Y_IGET(sb, inum) yaffs_iget((sb), (inum)) -+ -+static struct inode *yaffs_iget(struct super_block *sb, unsigned long ino); -+#endif -+ -+#if (LINUX_VERSION_CODE > KERNEL_VERSION(2, 6, 18)) -+#define yaffs_InodeToObjectLV(iptr) ((iptr)->i_private) -+#else -+#define yaffs_InodeToObjectLV(iptr) ((iptr)->u.generic_ip) -+#endif -+ -+#define yaffs_InodeToObject(iptr) ((yaffs_obj_t *)(yaffs_InodeToObjectLV(iptr))) -+#define yaffs_dentry_to_obj(dptr) yaffs_InodeToObject((dptr)->d_inode) -+ -+#if (LINUX_VERSION_CODE > KERNEL_VERSION(2, 5, 0)) -+#define yaffs_SuperToDevice(sb) ((yaffs_dev_t *)sb->s_fs_info) -+#else -+#define yaffs_SuperToDevice(sb) ((yaffs_dev_t *)sb->u.generic_sbp) -+#endif -+ -+ -+#define update_dir_time(dir) do {\ -+ (dir)->i_ctime = (dir)->i_mtime = CURRENT_TIME; \ -+ } while(0) -+ -+static void yaffs_put_super(struct super_block *sb); -+ -+static ssize_t yaffs_file_write(struct file *f, const char *buf, size_t n, -+ loff_t *pos); -+static ssize_t yaffs_hold_space(struct file *f); -+static void yaffs_release_space(struct file *f); -+ -+#if (LINUX_VERSION_CODE > KERNEL_VERSION(2, 6, 17)) -+static int yaffs_file_flush(struct file *file, fl_owner_t id); -+#else -+static int yaffs_file_flush(struct file *file); -+#endif -+ -+#if (LINUX_VERSION_CODE > KERNEL_VERSION(2, 6, 34)) -+static int yaffs_sync_object(struct file *file, int datasync); -+#else -+static int yaffs_sync_object(struct file *file, struct dentry *dentry, -+ int datasync); -+#endif -+ -+static int yaffs_readdir(struct file *f, void *dirent, filldir_t filldir); -+ -+#if (LINUX_VERSION_CODE > KERNEL_VERSION(2, 5, 0)) -+static int yaffs_create(struct inode *dir, struct dentry *dentry, int mode, -+ struct nameidata *n); -+static struct dentry *yaffs_lookup(struct inode *dir, struct dentry *dentry, -+ struct nameidata *n); -+#else -+static int yaffs_create(struct inode *dir, struct dentry *dentry, int mode); -+static struct dentry *yaffs_lookup(struct inode *dir, struct dentry *dentry); -+#endif -+static int yaffs_link(struct dentry *old_dentry, struct inode *dir, -+ struct dentry *dentry); -+static int yaffs_unlink(struct inode *dir, struct dentry *dentry); -+static int yaffs_symlink(struct inode *dir, struct dentry *dentry, -+ const char *symname); -+static int yaffs_mkdir(struct inode *dir, struct dentry *dentry, int mode); -+ -+#if (LINUX_VERSION_CODE > KERNEL_VERSION(2, 5, 0)) -+static int yaffs_mknod(struct inode *dir, struct dentry *dentry, int mode, -+ dev_t dev); -+#else -+static int yaffs_mknod(struct inode *dir, struct dentry *dentry, int mode, -+ int dev); -+#endif -+static int yaffs_rename(struct inode *old_dir, struct dentry *old_dentry, -+ struct inode *new_dir, struct dentry *new_dentry); -+static int yaffs_setattr(struct dentry *dentry, struct iattr *attr); -+ -+#if (LINUX_VERSION_CODE > KERNEL_VERSION(2, 6, 17)) -+static int yaffs_sync_fs(struct super_block *sb, int wait); -+static void yaffs_write_super(struct super_block *sb); -+#else -+static int yaffs_sync_fs(struct super_block *sb); -+static int yaffs_write_super(struct super_block *sb); -+#endif -+ -+#if (LINUX_VERSION_CODE > KERNEL_VERSION(2, 6, 17)) -+static int yaffs_statfs(struct dentry *dentry, struct kstatfs *buf); -+#elif (LINUX_VERSION_CODE > KERNEL_VERSION(2, 5, 0)) -+static int yaffs_statfs(struct super_block *sb, struct kstatfs *buf); -+#else -+static int yaffs_statfs(struct super_block *sb, struct statfs *buf); -+#endif -+ -+#ifdef YAFFS_HAS_PUT_INODE -+static void yaffs_put_inode(struct inode *inode); -+#endif -+ -+#ifdef YAFFS_HAS_EVICT_INODE -+static void yaffs_evict_inode(struct inode *); -+#else -+static void yaffs_delete_inode(struct inode *); -+static void yaffs_clear_inode(struct inode *); -+#endif -+ -+static int yaffs_readpage(struct file *file, struct page *page); -+#if (LINUX_VERSION_CODE > KERNEL_VERSION(2, 5, 0)) -+static int yaffs_writepage(struct page *page, struct writeback_control *wbc); -+#else -+static int yaffs_writepage(struct page *page); -+#endif -+ -+#ifdef CONFIG_YAFFS_XATTR -+int yaffs_setxattr(struct dentry *dentry, const char *name, -+ const void *value, size_t size, int flags); -+ssize_t yaffs_getxattr(struct dentry *dentry, const char *name, void *buff, -+ size_t size); -+int yaffs_removexattr(struct dentry *dentry, const char *name); -+ssize_t yaffs_listxattr(struct dentry *dentry, char *buff, size_t size); -+#endif -+ -+ -+#if (YAFFS_USE_WRITE_BEGIN_END != 0) -+static int yaffs_write_begin(struct file *filp, struct address_space *mapping, -+ loff_t pos, unsigned len, unsigned flags, -+ struct page **pagep, void **fsdata); -+static int yaffs_write_end(struct file *filp, struct address_space *mapping, -+ loff_t pos, unsigned len, unsigned copied, -+ struct page *pg, void *fsdadata); -+#else -+static int yaffs_prepare_write(struct file *f, struct page *pg, -+ unsigned offset, unsigned to); -+static int yaffs_commit_write(struct file *f, struct page *pg, unsigned offset, -+ unsigned to); -+ -+#endif -+ -+static int yaffs_readlink(struct dentry *dentry, char __user *buffer, -+ int buflen); -+#if (YAFFS_NEW_FOLLOW_LINK == 1) -+void yaffs_put_link(struct dentry *dentry, struct nameidata *nd, void *alias); -+static void *yaffs_follow_link(struct dentry *dentry, struct nameidata *nd); -+#else -+static int yaffs_follow_link(struct dentry *dentry, struct nameidata *nd); -+#endif -+ -+static void yaffs_touch_super(yaffs_dev_t *dev); -+ -+static loff_t yaffs_dir_llseek(struct file *file, loff_t offset, int origin); -+ -+static int yaffs_vfs_setattr(struct inode *, struct iattr *); -+ -+ -+static struct address_space_operations yaffs_file_address_operations = { -+ .readpage = yaffs_readpage, -+ .writepage = yaffs_writepage, -+#if (YAFFS_USE_WRITE_BEGIN_END > 0) -+ .write_begin = yaffs_write_begin, -+ .write_end = yaffs_write_end, -+#else -+ .prepare_write = yaffs_prepare_write, -+ .commit_write = yaffs_commit_write, -+#endif -+}; -+ -+ -+#if (LINUX_VERSION_CODE > KERNEL_VERSION(2, 6, 22)) -+static const struct file_operations yaffs_file_operations = { -+ .read = do_sync_read, -+ .write = do_sync_write, -+ .aio_read = generic_file_aio_read, -+ .aio_write = generic_file_aio_write, -+ .mmap = generic_file_mmap, -+ .flush = yaffs_file_flush, -+ .fsync = yaffs_sync_object, -+ .splice_read = generic_file_splice_read, -+ .splice_write = generic_file_splice_write, -+ .llseek = generic_file_llseek, -+}; -+ -+#elif (LINUX_VERSION_CODE > KERNEL_VERSION(2, 6, 18)) -+ -+static const struct file_operations yaffs_file_operations = { -+ .read = do_sync_read, -+ .write = do_sync_write, -+ .aio_read = generic_file_aio_read, -+ .aio_write = generic_file_aio_write, -+ .mmap = generic_file_mmap, -+ .flush = yaffs_file_flush, -+ .fsync = yaffs_sync_object, -+ .sendfile = generic_file_sendfile, -+}; -+ -+#else -+ -+static const struct file_operations yaffs_file_operations = { -+ .read = generic_file_read, -+ .write = generic_file_write, -+ .mmap = generic_file_mmap, -+ .flush = yaffs_file_flush, -+ .fsync = yaffs_sync_object, -+#if (LINUX_VERSION_CODE > KERNEL_VERSION(2, 5, 0)) -+ .sendfile = generic_file_sendfile, -+#endif -+}; -+#endif -+ -+#if (LINUX_VERSION_CODE < KERNEL_VERSION(2,6,25)) -+static void zero_user_segment(struct page *page, unsigned start, unsigned end) -+{ -+ void * kaddr = kmap_atomic(page, KM_USER0); -+ memset(kaddr + start, 0, end - start); -+ kunmap_atomic(kaddr, KM_USER0); -+ flush_dcache_page(page); -+} -+#endif -+ -+ -+static const struct inode_operations yaffs_file_inode_operations = { -+ .setattr = yaffs_setattr, -+#ifdef CONFIG_YAFFS_XATTR -+ .setxattr = yaffs_setxattr, -+ .getxattr = yaffs_getxattr, -+ .listxattr = yaffs_listxattr, -+ .removexattr = yaffs_removexattr, -+#endif -+}; -+ -+static const struct inode_operations yaffs_symlink_inode_operations = { -+ .readlink = yaffs_readlink, -+ .follow_link = yaffs_follow_link, -+#if (YAFFS_NEW_FOLLOW_LINK == 1) -+ .put_link = yaffs_put_link, -+#endif -+ .setattr = yaffs_setattr, -+#ifdef CONFIG_YAFFS_XATTR -+ .setxattr = yaffs_setxattr, -+ .getxattr = yaffs_getxattr, -+ .listxattr = yaffs_listxattr, -+ .removexattr = yaffs_removexattr, -+#endif -+}; -+ -+static const struct inode_operations yaffs_dir_inode_operations = { -+ .create = yaffs_create, -+ .lookup = yaffs_lookup, -+ .link = yaffs_link, -+ .unlink = yaffs_unlink, -+ .symlink = yaffs_symlink, -+ .mkdir = yaffs_mkdir, -+ .rmdir = yaffs_unlink, -+ .mknod = yaffs_mknod, -+ .rename = yaffs_rename, -+ .setattr = yaffs_setattr, -+#ifdef CONFIG_YAFFS_XATTR -+ .setxattr = yaffs_setxattr, -+ .getxattr = yaffs_getxattr, -+ .listxattr = yaffs_listxattr, -+ .removexattr = yaffs_removexattr, -+#endif -+}; -+ -+static const struct file_operations yaffs_dir_operations = { -+ .read = generic_read_dir, -+ .readdir = yaffs_readdir, -+ .fsync = yaffs_sync_object, -+ .llseek = yaffs_dir_llseek, -+}; -+ -+static const struct super_operations yaffs_super_ops = { -+ .statfs = yaffs_statfs, -+ -+#ifndef YAFFS_USE_OWN_IGET -+ .read_inode = yaffs_read_inode, -+#endif -+#ifdef YAFFS_HAS_PUT_INODE -+ .put_inode = yaffs_put_inode, -+#endif -+ .put_super = yaffs_put_super, -+#ifdef YAFFS_HAS_EVICT_INODE -+ .evict_inode = yaffs_evict_inode, -+#else -+ .delete_inode = yaffs_delete_inode, -+ .clear_inode = yaffs_clear_inode, -+#endif -+ .sync_fs = yaffs_sync_fs, -+ .write_super = yaffs_write_super, -+}; -+ -+ -+static int yaffs_vfs_setattr(struct inode *inode, struct iattr *attr) -+{ -+#ifdef YAFFS_USE_SETATTR_COPY -+ setattr_copy(inode,attr); -+ return 0; -+#else -+ return inode_setattr(inode, attr); -+#endif -+ -+} -+ -+static int yaffs_vfs_setsize(struct inode *inode, loff_t newsize) -+{ -+#ifdef YAFFS_USE_TRUNCATE_SETSIZE -+ truncate_setsize(inode,newsize); -+ return 0; -+#else -+ truncate_inode_pages(&inode->i_data,newsize); -+ return 0; -+#endif -+ -+} -+ -+static unsigned yaffs_gc_control_callback(yaffs_dev_t *dev) -+{ -+ return yaffs_gc_control; -+} -+ -+static void yaffs_gross_lock(yaffs_dev_t *dev) -+{ -+ T(YAFFS_TRACE_LOCK, (TSTR("yaffs locking %p\n"), current)); -+ down(&(yaffs_dev_to_lc(dev)->grossLock)); -+ T(YAFFS_TRACE_LOCK, (TSTR("yaffs locked %p\n"), current)); -+} -+ -+static void yaffs_gross_unlock(yaffs_dev_t *dev) -+{ -+ T(YAFFS_TRACE_LOCK, (TSTR("yaffs unlocking %p\n"), current)); -+ up(&(yaffs_dev_to_lc(dev)->grossLock)); -+} -+ -+#ifdef YAFFS_COMPILE_EXPORTFS -+ -+static struct inode * -+yaffs2_nfs_get_inode(struct super_block *sb, uint64_t ino, uint32_t generation) -+{ -+ return Y_IGET(sb, ino); -+} -+ -+static struct dentry * -+yaffs2_fh_to_dentry(struct super_block *sb, struct fid *fid, int fh_len, int fh_type) -+{ -+ return generic_fh_to_dentry(sb, fid, fh_len, fh_type, yaffs2_nfs_get_inode) ; -+} -+ -+static struct dentry * -+ yaffs2_fh_to_parent(struct super_block *sb, struct fid *fid, int fh_len, int fh_type) -+{ -+ return generic_fh_to_parent(sb, fid, fh_len, fh_type, yaffs2_nfs_get_inode); -+} -+ -+struct dentry *yaffs2_get_parent(struct dentry *dentry) -+{ -+ -+ struct super_block *sb = dentry->d_inode->i_sb; -+ struct dentry *parent = ERR_PTR(-ENOENT); -+ struct inode *inode; -+ unsigned long parent_ino; -+ yaffs_obj_t *d_obj; -+ yaffs_obj_t *parent_obj; -+ -+ d_obj = yaffs_InodeToObject(dentry->d_inode); -+ -+ if (d_obj) { -+ parent_obj = d_obj->parent; -+ if (parent_obj) { -+ parent_ino = yaffs_get_obj_inode(parent_obj); -+ inode = Y_IGET(sb, parent_ino); -+ -+ if (IS_ERR(inode)) { -+ parent = ERR_CAST(inode); -+ } else { -+ parent = d_obtain_alias(inode); -+ if (!IS_ERR(parent)) { -+ parent = ERR_PTR(-ENOMEM); -+ iput(inode); -+ } -+ } -+ } -+ } -+ -+ return parent; -+} -+ -+/* Just declare a zero structure as a NULL value implies -+ * using the default functions of exportfs. -+ */ -+ -+static struct export_operations yaffs_export_ops = -+{ -+ .fh_to_dentry = yaffs2_fh_to_dentry, -+ .fh_to_parent = yaffs2_fh_to_parent, -+ .get_parent = yaffs2_get_parent, -+} ; -+ -+#endif -+ -+/*-----------------------------------------------------------------*/ -+/* Directory search context allows us to unlock access to yaffs during -+ * filldir without causing problems with the directory being modified. -+ * This is similar to the tried and tested mechanism used in yaffs direct. -+ * -+ * A search context iterates along a doubly linked list of siblings in the -+ * directory. If the iterating object is deleted then this would corrupt -+ * the list iteration, likely causing a crash. The search context avoids -+ * this by using the remove_obj_fn to move the search context to the -+ * next object before the object is deleted. -+ * -+ * Many readdirs (and thus seach conexts) may be alive simulateously so -+ * each yaffs_dev_t has a list of these. -+ * -+ * A seach context lives for the duration of a readdir. -+ * -+ * All these functions must be called while yaffs is locked. -+ */ -+ -+struct yaffs_SearchContext { -+ yaffs_dev_t *dev; -+ yaffs_obj_t *dirObj; -+ yaffs_obj_t *nextReturn; -+ struct ylist_head others; -+}; -+ -+/* -+ * yaffs_NewSearch() creates a new search context, initialises it and -+ * adds it to the device's search context list. -+ * -+ * Called at start of readdir. -+ */ -+static struct yaffs_SearchContext * yaffs_NewSearch(yaffs_obj_t *dir) -+{ -+ yaffs_dev_t *dev = dir->my_dev; -+ struct yaffs_SearchContext *sc = YMALLOC(sizeof(struct yaffs_SearchContext)); -+ if(sc){ -+ sc->dirObj = dir; -+ sc->dev = dev; -+ if( ylist_empty(&sc->dirObj->variant.dir_variant.children)) -+ sc->nextReturn = NULL; -+ else -+ sc->nextReturn = ylist_entry( -+ dir->variant.dir_variant.children.next, -+ yaffs_obj_t,siblings); -+ YINIT_LIST_HEAD(&sc->others); -+ ylist_add(&sc->others,&(yaffs_dev_to_lc(dev)->searchContexts)); -+ } -+ return sc; -+} -+ -+/* -+ * yaffs_search_end() disposes of a search context and cleans up. -+ */ -+static void yaffs_search_end(struct yaffs_SearchContext * sc) -+{ -+ if(sc){ -+ ylist_del(&sc->others); -+ YFREE(sc); -+ } -+} -+ -+/* -+ * yaffs_search_advance() moves a search context to the next object. -+ * Called when the search iterates or when an object removal causes -+ * the search context to be moved to the next object. -+ */ -+static void yaffs_search_advance(struct yaffs_SearchContext *sc) -+{ -+ if(!sc) -+ return; -+ -+ if( sc->nextReturn == NULL || -+ ylist_empty(&sc->dirObj->variant.dir_variant.children)) -+ sc->nextReturn = NULL; -+ else { -+ struct ylist_head *next = sc->nextReturn->siblings.next; -+ -+ if( next == &sc->dirObj->variant.dir_variant.children) -+ sc->nextReturn = NULL; /* end of list */ -+ else -+ sc->nextReturn = ylist_entry(next,yaffs_obj_t,siblings); -+ } -+} -+ -+/* -+ * yaffs_remove_obj_callback() is called when an object is unlinked. -+ * We check open search contexts and advance any which are currently -+ * on the object being iterated. -+ */ -+static void yaffs_remove_obj_callback(yaffs_obj_t *obj) -+{ -+ -+ struct ylist_head *i; -+ struct yaffs_SearchContext *sc; -+ struct ylist_head *search_contexts = &(yaffs_dev_to_lc(obj->my_dev)->searchContexts); -+ -+ -+ /* Iterate through the directory search contexts. -+ * If any are currently on the object being removed, then advance -+ * the search context to the next object to prevent a hanging pointer. -+ */ -+ ylist_for_each(i, search_contexts) { -+ if (i) { -+ sc = ylist_entry(i, struct yaffs_SearchContext,others); -+ if(sc->nextReturn == obj) -+ yaffs_search_advance(sc); -+ } -+ } -+ -+} -+ -+ -+/*-----------------------------------------------------------------*/ -+ -+static int yaffs_readlink(struct dentry *dentry, char __user *buffer, -+ int buflen) -+{ -+ unsigned char *alias; -+ int ret; -+ -+ yaffs_dev_t *dev = yaffs_dentry_to_obj(dentry)->my_dev; -+ -+ yaffs_gross_lock(dev); -+ -+ alias = yaffs_get_symlink_alias(yaffs_dentry_to_obj(dentry)); -+ -+ yaffs_gross_unlock(dev); -+ -+ if (!alias) -+ return -ENOMEM; -+ -+ ret = vfs_readlink(dentry, buffer, buflen, alias); -+ kfree(alias); -+ return ret; -+} -+ -+#if (YAFFS_NEW_FOLLOW_LINK == 1) -+static void *yaffs_follow_link(struct dentry *dentry, struct nameidata *nd) -+#else -+static int yaffs_follow_link(struct dentry *dentry, struct nameidata *nd) -+#endif -+{ -+ unsigned char *alias; -+ int ret; -+ yaffs_dev_t *dev = yaffs_dentry_to_obj(dentry)->my_dev; -+ -+ yaffs_gross_lock(dev); -+ -+ alias = yaffs_get_symlink_alias(yaffs_dentry_to_obj(dentry)); -+ yaffs_gross_unlock(dev); -+ -+ if (!alias) { -+ ret = -ENOMEM; -+ goto out; -+ } -+ -+#if (YAFFS_NEW_FOLLOW_LINK == 1) -+ nd_set_link(nd, alias); -+ ret = (int)alias; -+out: -+ return ERR_PTR(ret); -+#else -+ ret = vfs_follow_link(nd, alias); -+ kfree(alias); -+out: -+ return ret; -+#endif -+} -+ -+#if (YAFFS_NEW_FOLLOW_LINK == 1) -+void yaffs_put_link(struct dentry *dentry, struct nameidata *nd, void *alias) { -+ kfree(alias); -+} -+#endif -+ -+struct inode *yaffs_get_inode(struct super_block *sb, int mode, int dev, -+ yaffs_obj_t *obj); -+ -+/* -+ * Lookup is used to find objects in the fs -+ */ -+#if (LINUX_VERSION_CODE > KERNEL_VERSION(2, 5, 0)) -+ -+static struct dentry *yaffs_lookup(struct inode *dir, struct dentry *dentry, -+ struct nameidata *n) -+#else -+static struct dentry *yaffs_lookup(struct inode *dir, struct dentry *dentry) -+#endif -+{ -+ yaffs_obj_t *obj; -+ struct inode *inode = NULL; /* NCB 2.5/2.6 needs NULL here */ -+ -+ yaffs_dev_t *dev = yaffs_InodeToObject(dir)->my_dev; -+ -+ if(current != yaffs_dev_to_lc(dev)->readdirProcess) -+ yaffs_gross_lock(dev); -+ -+ T(YAFFS_TRACE_OS, -+ (TSTR("yaffs_lookup for %d:%s\n"), -+ yaffs_InodeToObject(dir)->obj_id, dentry->d_name.name)); -+ -+ obj = yaffs_find_by_name(yaffs_InodeToObject(dir), -+ dentry->d_name.name); -+ -+ obj = yaffs_get_equivalent_obj(obj); /* in case it was a hardlink */ -+ -+ /* Can't hold gross lock when calling yaffs_get_inode() */ -+ if(current != yaffs_dev_to_lc(dev)->readdirProcess) -+ yaffs_gross_unlock(dev); -+ -+ if (obj) { -+ T(YAFFS_TRACE_OS, -+ (TSTR("yaffs_lookup found %d\n"), obj->obj_id)); -+ -+ inode = yaffs_get_inode(dir->i_sb, obj->yst_mode, 0, obj); -+ -+ if (inode) { -+ T(YAFFS_TRACE_OS, -+ (TSTR("yaffs_loookup dentry \n"))); -+/* #if 0 asserted by NCB for 2.5/6 compatability - falls through to -+ * d_add even if NULL inode */ -+#if 0 -+ /*dget(dentry); // try to solve directory bug */ -+ d_add(dentry, inode); -+ -+ /* return dentry; */ -+ return NULL; -+#endif -+ } -+ -+ } else { -+ T(YAFFS_TRACE_OS,(TSTR("yaffs_lookup not found\n"))); -+ -+ } -+ -+/* added NCB for 2.5/6 compatability - forces add even if inode is -+ * NULL which creates dentry hash */ -+ d_add(dentry, inode); -+ -+ return NULL; -+} -+ -+ -+#ifdef YAFFS_HAS_PUT_INODE -+ -+/* For now put inode is just for debugging -+ * Put inode is called when the inode **structure** is put. -+ */ -+static void yaffs_put_inode(struct inode *inode) -+{ -+ T(YAFFS_TRACE_OS, -+ (TSTR("yaffs_put_inode: ino %d, count %d\n"), (int)inode->i_ino, -+ atomic_read(&inode->i_count))); -+ -+} -+#endif -+ -+ -+static void yaffs_unstitch_obj(struct inode *inode, yaffs_obj_t *obj) -+{ -+ /* Clear the association between the inode and -+ * the yaffs_obj_t. -+ */ -+ obj->my_inode = NULL; -+ yaffs_InodeToObjectLV(inode) = NULL; -+ -+ /* If the object freeing was deferred, then the real -+ * free happens now. -+ * This should fix the inode inconsistency problem. -+ */ -+ yaffs_handle_defered_free(obj); -+} -+ -+#ifdef YAFFS_HAS_EVICT_INODE -+/* yaffs_evict_inode combines into one operation what was previously done in -+ * yaffs_clear_inode() and yaffs_delete_inode() -+ * -+ */ -+static void yaffs_evict_inode( struct inode *inode) -+{ -+ yaffs_obj_t *obj; -+ yaffs_dev_t *dev; -+ int deleteme = 0; -+ -+ obj = yaffs_InodeToObject(inode); -+ -+ T(YAFFS_TRACE_OS, -+ (TSTR("yaffs_evict_inode: ino %d, count %d %s\n"), (int)inode->i_ino, -+ atomic_read(&inode->i_count), -+ obj ? "object exists" : "null object")); -+ -+ if (!inode->i_nlink && !is_bad_inode(inode)) -+ deleteme = 1; -+ truncate_inode_pages(&inode->i_data,0); -+ end_writeback(inode); -+ -+ if(deleteme && obj){ -+ dev = obj->my_dev; -+ yaffs_gross_lock(dev); -+ yaffs_del_obj(obj); -+ yaffs_gross_unlock(dev); -+ } -+ if (obj) { -+ dev = obj->my_dev; -+ yaffs_gross_lock(dev); -+ yaffs_unstitch_obj(inode,obj); -+ yaffs_gross_unlock(dev); -+ } -+ -+ -+} -+#else -+ -+/* clear is called to tell the fs to release any per-inode data it holds. -+ * The object might still exist on disk and is just being thrown out of the cache -+ * or else the object has actually been deleted and we're being called via -+ * the chain -+ * yaffs_delete_inode() -> clear_inode()->yaffs_clear_inode() -+ */ -+ -+static void yaffs_clear_inode(struct inode *inode) -+{ -+ yaffs_obj_t *obj; -+ yaffs_dev_t *dev; -+ -+ obj = yaffs_InodeToObject(inode); -+ -+ T(YAFFS_TRACE_OS, -+ (TSTR("yaffs_clear_inode: ino %d, count %d %s\n"), (int)inode->i_ino, -+ atomic_read(&inode->i_count), -+ obj ? "object exists" : "null object")); -+ -+ if (obj) { -+ dev = obj->my_dev; -+ yaffs_gross_lock(dev); -+ yaffs_unstitch_obj(inode,obj); -+ yaffs_gross_unlock(dev); -+ } -+ -+} -+ -+/* delete is called when the link count is zero and the inode -+ * is put (ie. nobody wants to know about it anymore, time to -+ * delete the file). -+ * NB Must call clear_inode() -+ */ -+static void yaffs_delete_inode(struct inode *inode) -+{ -+ yaffs_obj_t *obj = yaffs_InodeToObject(inode); -+ yaffs_dev_t *dev; -+ -+ T(YAFFS_TRACE_OS, -+ (TSTR("yaffs_delete_inode: ino %d, count %d %s\n"), (int)inode->i_ino, -+ atomic_read(&inode->i_count), -+ obj ? "object exists" : "null object")); -+ -+ if (obj) { -+ dev = obj->my_dev; -+ yaffs_gross_lock(dev); -+ yaffs_del_obj(obj); -+ yaffs_gross_unlock(dev); -+ } -+#if (LINUX_VERSION_CODE > KERNEL_VERSION(2, 6, 13)) -+ truncate_inode_pages(&inode->i_data, 0); -+#endif -+ clear_inode(inode); -+} -+#endif -+ -+ -+#if (LINUX_VERSION_CODE > KERNEL_VERSION(2, 6, 17)) -+static int yaffs_file_flush(struct file *file, fl_owner_t id) -+#else -+static int yaffs_file_flush(struct file *file) -+#endif -+{ -+ yaffs_obj_t *obj = yaffs_dentry_to_obj(file->f_dentry); -+ -+ yaffs_dev_t *dev = obj->my_dev; -+ -+ T(YAFFS_TRACE_OS, -+ (TSTR("yaffs_file_flush object %d (%s)\n"), obj->obj_id, -+ obj->dirty ? "dirty" : "clean")); -+ -+ yaffs_gross_lock(dev); -+ -+ yaffs_flush_file(obj, 1, 0); -+ -+ yaffs_gross_unlock(dev); -+ -+ return 0; -+} -+ -+static int yaffs_readpage_nolock(struct file *f, struct page *pg) -+{ -+ /* Lifted from jffs2 */ -+ -+ yaffs_obj_t *obj; -+ unsigned char *pg_buf; -+ int ret; -+ -+ yaffs_dev_t *dev; -+ -+ T(YAFFS_TRACE_OS, -+ (TSTR("yaffs_readpage_nolock at %08x, size %08x\n"), -+ (unsigned)(pg->index << PAGE_CACHE_SHIFT), -+ (unsigned)PAGE_CACHE_SIZE)); -+ -+ obj = yaffs_dentry_to_obj(f->f_dentry); -+ -+ dev = obj->my_dev; -+ -+#if (LINUX_VERSION_CODE > KERNEL_VERSION(2, 5, 0)) -+ BUG_ON(!PageLocked(pg)); -+#else -+ if (!PageLocked(pg)) -+ PAGE_BUG(pg); -+#endif -+ -+ pg_buf = kmap(pg); -+ /* FIXME: Can kmap fail? */ -+ -+ yaffs_gross_lock(dev); -+ -+ ret = yaffs_file_rd(obj, pg_buf, -+ pg->index << PAGE_CACHE_SHIFT, -+ PAGE_CACHE_SIZE); -+ -+ yaffs_gross_unlock(dev); -+ -+ if (ret >= 0) -+ ret = 0; -+ -+ if (ret) { -+ ClearPageUptodate(pg); -+ SetPageError(pg); -+ } else { -+ SetPageUptodate(pg); -+ ClearPageError(pg); -+ } -+ -+ flush_dcache_page(pg); -+ kunmap(pg); -+ -+ T(YAFFS_TRACE_OS, (TSTR("yaffs_readpage_nolock done\n"))); -+ return ret; -+} -+ -+static int yaffs_readpage_unlock(struct file *f, struct page *pg) -+{ -+ int ret = yaffs_readpage_nolock(f, pg); -+ UnlockPage(pg); -+ return ret; -+} -+ -+static int yaffs_readpage(struct file *f, struct page *pg) -+{ -+ int ret; -+ -+ T(YAFFS_TRACE_OS, (TSTR("yaffs_readpage\n"))); -+ ret=yaffs_readpage_unlock(f, pg); -+ T(YAFFS_TRACE_OS, (TSTR("yaffs_readpage done\n"))); -+ return ret; -+} -+ -+/* writepage inspired by/stolen from smbfs */ -+ -+#if (LINUX_VERSION_CODE > KERNEL_VERSION(2, 5, 0)) -+static int yaffs_writepage(struct page *page, struct writeback_control *wbc) -+#else -+static int yaffs_writepage(struct page *page) -+#endif -+{ -+ yaffs_dev_t *dev; -+ struct address_space *mapping = page->mapping; -+ struct inode *inode; -+ unsigned long end_index; -+ char *buffer; -+ yaffs_obj_t *obj; -+ int nWritten = 0; -+ unsigned n_bytes; -+ loff_t i_size; -+ -+ if (!mapping) -+ BUG(); -+ inode = mapping->host; -+ if (!inode) -+ BUG(); -+ i_size = i_size_read(inode); -+ -+ end_index = i_size >> PAGE_CACHE_SHIFT; -+ -+ if(page->index < end_index) -+ n_bytes = PAGE_CACHE_SIZE; -+ else { -+ n_bytes = i_size & (PAGE_CACHE_SIZE -1); -+ -+ if (page->index > end_index || !n_bytes) { -+ T(YAFFS_TRACE_OS, -+ (TSTR("yaffs_writepage at %08x, inode size = %08x!!!\n"), -+ (unsigned)(page->index << PAGE_CACHE_SHIFT), -+ (unsigned)inode->i_size)); -+ T(YAFFS_TRACE_OS, -+ (TSTR(" -> don't care!!\n"))); -+ -+ zero_user_segment(page,0,PAGE_CACHE_SIZE); -+ set_page_writeback(page); -+ unlock_page(page); -+ end_page_writeback(page); -+ return 0; -+ } -+ } -+ -+ if(n_bytes != PAGE_CACHE_SIZE) -+ zero_user_segment(page,n_bytes,PAGE_CACHE_SIZE); -+ -+ get_page(page); -+ -+ buffer = kmap(page); -+ -+ obj = yaffs_InodeToObject(inode); -+ dev = obj->my_dev; -+ yaffs_gross_lock(dev); -+ -+ T(YAFFS_TRACE_OS, -+ (TSTR("yaffs_writepage at %08x, size %08x\n"), -+ (unsigned)(page->index << PAGE_CACHE_SHIFT), n_bytes)); -+ T(YAFFS_TRACE_OS, -+ (TSTR("writepag0: obj = %05x, ino = %05x\n"), -+ (int)obj->variant.file_variant.file_size, (int)inode->i_size)); -+ -+ nWritten = yaffs_wr_file(obj, buffer, -+ page->index << PAGE_CACHE_SHIFT, n_bytes, 0); -+ -+ yaffs_touch_super(dev); -+ -+ T(YAFFS_TRACE_OS, -+ (TSTR("writepag1: obj = %05x, ino = %05x\n"), -+ (int)obj->variant.file_variant.file_size, (int)inode->i_size)); -+ -+ yaffs_gross_unlock(dev); -+ -+ kunmap(page); -+ set_page_writeback(page); -+ unlock_page(page); -+ end_page_writeback(page); -+ put_page(page); -+ -+ return (nWritten == n_bytes) ? 0 : -ENOSPC; -+} -+ -+ -+#if (YAFFS_USE_WRITE_BEGIN_END > 0) -+static int yaffs_write_begin(struct file *filp, struct address_space *mapping, -+ loff_t pos, unsigned len, unsigned flags, -+ struct page **pagep, void **fsdata) -+{ -+ struct page *pg = NULL; -+ pgoff_t index = pos >> PAGE_CACHE_SHIFT; -+ -+ int ret = 0; -+ int space_held = 0; -+ -+ /* Get a page */ -+#if LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 28) -+ pg = grab_cache_page_write_begin(mapping, index, flags); -+#else -+ pg = __grab_cache_page(mapping, index); -+#endif -+ -+ *pagep = pg; -+ if (!pg) { -+ ret = -ENOMEM; -+ goto out; -+ } -+ T(YAFFS_TRACE_OS, -+ (TSTR("start yaffs_write_begin index %d(%x) uptodate %d\n"), -+ (int)index,(int)index,Page_Uptodate(pg) ? 1 : 0)); -+ -+ /* Get fs space */ -+ space_held = yaffs_hold_space(filp); -+ -+ if (!space_held) { -+ ret = -ENOSPC; -+ goto out; -+ } -+ -+ /* Update page if required */ -+ -+ if (!Page_Uptodate(pg)) -+ ret = yaffs_readpage_nolock(filp, pg); -+ -+ if (ret) -+ goto out; -+ -+ /* Happy path return */ -+ T(YAFFS_TRACE_OS, (TSTR("end yaffs_write_begin - ok\n"))); -+ -+ return 0; -+ -+out: -+ T(YAFFS_TRACE_OS, -+ (TSTR("end yaffs_write_begin fail returning %d\n"), ret)); -+ if (space_held) -+ yaffs_release_space(filp); -+ if (pg) { -+ unlock_page(pg); -+ page_cache_release(pg); -+ } -+ return ret; -+} -+ -+#else -+ -+static int yaffs_prepare_write(struct file *f, struct page *pg, -+ unsigned offset, unsigned to) -+{ -+ T(YAFFS_TRACE_OS, (TSTR("yaffs_prepair_write\n"))); -+ -+ if (!Page_Uptodate(pg)) -+ return yaffs_readpage_nolock(f, pg); -+ return 0; -+} -+#endif -+ -+#if (YAFFS_USE_WRITE_BEGIN_END > 0) -+static int yaffs_write_end(struct file *filp, struct address_space *mapping, -+ loff_t pos, unsigned len, unsigned copied, -+ struct page *pg, void *fsdadata) -+{ -+ int ret = 0; -+ void *addr, *kva; -+ uint32_t offset_into_page = pos & (PAGE_CACHE_SIZE - 1); -+ -+ kva = kmap(pg); -+ addr = kva + offset_into_page; -+ -+ T(YAFFS_TRACE_OS, -+ ("yaffs_write_end addr %p pos %x n_bytes %d\n", -+ addr,(unsigned)pos, copied)); -+ -+ ret = yaffs_file_write(filp, addr, copied, &pos); -+ -+ if (ret != copied) { -+ T(YAFFS_TRACE_OS, -+ (TSTR("yaffs_write_end not same size ret %d copied %d\n"), -+ ret, copied)); -+ SetPageError(pg); -+ } else { -+ /* Nothing */ -+ } -+ -+ kunmap(pg); -+ -+ yaffs_release_space(filp); -+ unlock_page(pg); -+ page_cache_release(pg); -+ return ret; -+} -+#else -+ -+static int yaffs_commit_write(struct file *f, struct page *pg, unsigned offset, -+ unsigned to) -+{ -+ void *addr, *kva; -+ -+ loff_t pos = (((loff_t) pg->index) << PAGE_CACHE_SHIFT) + offset; -+ int n_bytes = to - offset; -+ int nWritten; -+ -+ unsigned spos = pos; -+ unsigned saddr; -+ -+ kva = kmap(pg); -+ addr = kva + offset; -+ -+ saddr = (unsigned) addr; -+ -+ T(YAFFS_TRACE_OS, -+ (TSTR("yaffs_commit_write addr %x pos %x n_bytes %d\n"), -+ saddr, spos, n_bytes)); -+ -+ nWritten = yaffs_file_write(f, addr, n_bytes, &pos); -+ -+ if (nWritten != n_bytes) { -+ T(YAFFS_TRACE_OS, -+ (TSTR("yaffs_commit_write not same size nWritten %d n_bytes %d\n"), -+ nWritten, n_bytes)); -+ SetPageError(pg); -+ } else { -+ /* Nothing */ -+ } -+ -+ kunmap(pg); -+ -+ T(YAFFS_TRACE_OS, -+ (TSTR("yaffs_commit_write returning %d\n"), -+ nWritten == n_bytes ? 0 : nWritten)); -+ -+ return nWritten == n_bytes ? 0 : nWritten; -+} -+#endif -+ -+ -+static void yaffs_fill_inode_from_obj(struct inode *inode, yaffs_obj_t *obj) -+{ -+ if (inode && obj) { -+ -+ -+ /* Check mode against the variant type and attempt to repair if broken. */ -+ __u32 mode = obj->yst_mode; -+ switch (obj->variant_type) { -+ case YAFFS_OBJECT_TYPE_FILE: -+ if (!S_ISREG(mode)) { -+ obj->yst_mode &= ~S_IFMT; -+ obj->yst_mode |= S_IFREG; -+ } -+ -+ break; -+ case YAFFS_OBJECT_TYPE_SYMLINK: -+ if (!S_ISLNK(mode)) { -+ obj->yst_mode &= ~S_IFMT; -+ obj->yst_mode |= S_IFLNK; -+ } -+ -+ break; -+ case YAFFS_OBJECT_TYPE_DIRECTORY: -+ if (!S_ISDIR(mode)) { -+ obj->yst_mode &= ~S_IFMT; -+ obj->yst_mode |= S_IFDIR; -+ } -+ -+ break; -+ case YAFFS_OBJECT_TYPE_UNKNOWN: -+ case YAFFS_OBJECT_TYPE_HARDLINK: -+ case YAFFS_OBJECT_TYPE_SPECIAL: -+ default: -+ /* TODO? */ -+ break; -+ } -+ -+ inode->i_flags |= S_NOATIME; -+ -+ inode->i_ino = obj->obj_id; -+ inode->i_mode = obj->yst_mode; -+ inode->i_uid = obj->yst_uid; -+ inode->i_gid = obj->yst_gid; -+#if (LINUX_VERSION_CODE < KERNEL_VERSION(2, 6, 19)) -+ inode->i_blksize = inode->i_sb->s_blocksize; -+#endif -+#if (LINUX_VERSION_CODE > KERNEL_VERSION(2, 5, 0)) -+ -+ inode->i_rdev = old_decode_dev(obj->yst_rdev); -+ inode->i_atime.tv_sec = (time_t) (obj->yst_atime); -+ inode->i_atime.tv_nsec = 0; -+ inode->i_mtime.tv_sec = (time_t) obj->yst_mtime; -+ inode->i_mtime.tv_nsec = 0; -+ inode->i_ctime.tv_sec = (time_t) obj->yst_ctime; -+ inode->i_ctime.tv_nsec = 0; -+#else -+ inode->i_rdev = obj->yst_rdev; -+ inode->i_atime = obj->yst_atime; -+ inode->i_mtime = obj->yst_mtime; -+ inode->i_ctime = obj->yst_ctime; -+#endif -+ inode->i_size = yaffs_get_obj_length(obj); -+ inode->i_blocks = (inode->i_size + 511) >> 9; -+ -+ inode->i_nlink = yaffs_get_obj_link_count(obj); -+ -+ T(YAFFS_TRACE_OS, -+ (TSTR("yaffs_fill_inode mode %x uid %d gid %d size %d count %d\n"), -+ inode->i_mode, inode->i_uid, inode->i_gid, -+ (int)inode->i_size, atomic_read(&inode->i_count))); -+ -+ switch (obj->yst_mode & S_IFMT) { -+ default: /* fifo, device or socket */ -+#if (LINUX_VERSION_CODE > KERNEL_VERSION(2, 5, 0)) -+ init_special_inode(inode, obj->yst_mode, -+ old_decode_dev(obj->yst_rdev)); -+#else -+ init_special_inode(inode, obj->yst_mode, -+ (dev_t) (obj->yst_rdev)); -+#endif -+ break; -+ case S_IFREG: /* file */ -+ inode->i_op = &yaffs_file_inode_operations; -+ inode->i_fop = &yaffs_file_operations; -+ inode->i_mapping->a_ops = -+ &yaffs_file_address_operations; -+ break; -+ case S_IFDIR: /* directory */ -+ inode->i_op = &yaffs_dir_inode_operations; -+ inode->i_fop = &yaffs_dir_operations; -+ break; -+ case S_IFLNK: /* symlink */ -+ inode->i_op = &yaffs_symlink_inode_operations; -+ break; -+ } -+ -+ yaffs_InodeToObjectLV(inode) = obj; -+ -+ obj->my_inode = inode; -+ -+ } else { -+ T(YAFFS_TRACE_OS, -+ (TSTR("yaffs_FileInode invalid parameters\n"))); -+ } -+ -+} -+ -+struct inode *yaffs_get_inode(struct super_block *sb, int mode, int dev, -+ yaffs_obj_t *obj) -+{ -+ struct inode *inode; -+ -+ if (!sb) { -+ T(YAFFS_TRACE_OS, -+ (TSTR("yaffs_get_inode for NULL super_block!!\n"))); -+ return NULL; -+ -+ } -+ -+ if (!obj) { -+ T(YAFFS_TRACE_OS, -+ (TSTR("yaffs_get_inode for NULL object!!\n"))); -+ return NULL; -+ -+ } -+ -+ T(YAFFS_TRACE_OS, -+ (TSTR("yaffs_get_inode for object %d\n"), obj->obj_id)); -+ -+ inode = Y_IGET(sb, obj->obj_id); -+ if (IS_ERR(inode)) -+ return NULL; -+ -+ /* NB Side effect: iget calls back to yaffs_read_inode(). */ -+ /* iget also increments the inode's i_count */ -+ /* NB You can't be holding grossLock or deadlock will happen! */ -+ -+ return inode; -+} -+ -+static ssize_t yaffs_file_write(struct file *f, const char *buf, size_t n, -+ loff_t *pos) -+{ -+ yaffs_obj_t *obj; -+ int nWritten, ipos; -+ struct inode *inode; -+ yaffs_dev_t *dev; -+ -+ obj = yaffs_dentry_to_obj(f->f_dentry); -+ -+ dev = obj->my_dev; -+ -+ yaffs_gross_lock(dev); -+ -+ inode = f->f_dentry->d_inode; -+ -+ if (!S_ISBLK(inode->i_mode) && f->f_flags & O_APPEND) -+ ipos = inode->i_size; -+ else -+ ipos = *pos; -+ -+ if (!obj) -+ T(YAFFS_TRACE_OS, -+ (TSTR("yaffs_file_write: hey obj is null!\n"))); -+ else -+ T(YAFFS_TRACE_OS, -+ (TSTR("yaffs_file_write about to write writing %u(%x) bytes" -+ "to object %d at %d(%x)\n"), -+ (unsigned) n, (unsigned) n, obj->obj_id, ipos,ipos)); -+ -+ nWritten = yaffs_wr_file(obj, buf, ipos, n, 0); -+ -+ yaffs_touch_super(dev); -+ -+ T(YAFFS_TRACE_OS, -+ (TSTR("yaffs_file_write: %d(%x) bytes written\n"), -+ (unsigned )n,(unsigned)n)); -+ -+ if (nWritten > 0) { -+ ipos += nWritten; -+ *pos = ipos; -+ if (ipos > inode->i_size) { -+ inode->i_size = ipos; -+ inode->i_blocks = (ipos + 511) >> 9; -+ -+ T(YAFFS_TRACE_OS, -+ (TSTR("yaffs_file_write size updated to %d bytes, " -+ "%d blocks\n"), -+ ipos, (int)(inode->i_blocks))); -+ } -+ -+ } -+ yaffs_gross_unlock(dev); -+ return (nWritten == 0) && (n > 0) ? -ENOSPC : nWritten; -+} -+ -+/* Space holding and freeing is done to ensure we have space available for write_begin/end */ -+/* For now we just assume few parallel writes and check against a small number. */ -+/* Todo: need to do this with a counter to handle parallel reads better */ -+ -+static ssize_t yaffs_hold_space(struct file *f) -+{ -+ yaffs_obj_t *obj; -+ yaffs_dev_t *dev; -+ -+ int n_free_chunks; -+ -+ -+ obj = yaffs_dentry_to_obj(f->f_dentry); -+ -+ dev = obj->my_dev; -+ -+ yaffs_gross_lock(dev); -+ -+ n_free_chunks = yaffs_get_n_free_chunks(dev); -+ -+ yaffs_gross_unlock(dev); -+ -+ return (n_free_chunks > 20) ? 1 : 0; -+} -+ -+static void yaffs_release_space(struct file *f) -+{ -+ yaffs_obj_t *obj; -+ yaffs_dev_t *dev; -+ -+ -+ obj = yaffs_dentry_to_obj(f->f_dentry); -+ -+ dev = obj->my_dev; -+ -+ yaffs_gross_lock(dev); -+ -+ -+ yaffs_gross_unlock(dev); -+} -+ -+ -+static loff_t yaffs_dir_llseek(struct file *file, loff_t offset, int origin) -+{ -+ long long retval; -+ -+ lock_kernel(); -+ -+ switch (origin){ -+ case 2: -+ offset += i_size_read(file->f_path.dentry->d_inode); -+ break; -+ case 1: -+ offset += file->f_pos; -+ } -+ retval = -EINVAL; -+ -+ if (offset >= 0){ -+ if (offset != file->f_pos) -+ file->f_pos = offset; -+ -+ retval = offset; -+ } -+ unlock_kernel(); -+ return retval; -+} -+ -+ -+static int yaffs_readdir(struct file *f, void *dirent, filldir_t filldir) -+{ -+ yaffs_obj_t *obj; -+ yaffs_dev_t *dev; -+ struct yaffs_SearchContext *sc; -+ struct inode *inode = f->f_dentry->d_inode; -+ unsigned long offset, curoffs; -+ yaffs_obj_t *l; -+ int retVal = 0; -+ -+ char name[YAFFS_MAX_NAME_LENGTH + 1]; -+ -+ obj = yaffs_dentry_to_obj(f->f_dentry); -+ dev = obj->my_dev; -+ -+ yaffs_gross_lock(dev); -+ -+ yaffs_dev_to_lc(dev)->readdirProcess = current; -+ -+ offset = f->f_pos; -+ -+ sc = yaffs_NewSearch(obj); -+ if(!sc){ -+ retVal = -ENOMEM; -+ goto out; -+ } -+ -+ T(YAFFS_TRACE_OS, (TSTR("yaffs_readdir: starting at %d\n"), (int)offset)); -+ -+ if (offset == 0) { -+ T(YAFFS_TRACE_OS, -+ (TSTR("yaffs_readdir: entry . ino %d \n"), -+ (int)inode->i_ino)); -+ yaffs_gross_unlock(dev); -+ if (filldir(dirent, ".", 1, offset, inode->i_ino, DT_DIR) < 0){ -+ yaffs_gross_lock(dev); -+ goto out; -+ } -+ yaffs_gross_lock(dev); -+ offset++; -+ f->f_pos++; -+ } -+ if (offset == 1) { -+ T(YAFFS_TRACE_OS, -+ (TSTR("yaffs_readdir: entry .. ino %d \n"), -+ (int)f->f_dentry->d_parent->d_inode->i_ino)); -+ yaffs_gross_unlock(dev); -+ if (filldir(dirent, "..", 2, offset, -+ f->f_dentry->d_parent->d_inode->i_ino, DT_DIR) < 0){ -+ yaffs_gross_lock(dev); -+ goto out; -+ } -+ yaffs_gross_lock(dev); -+ offset++; -+ f->f_pos++; -+ } -+ -+ curoffs = 1; -+ -+ /* If the directory has changed since the open or last call to -+ readdir, rewind to after the 2 canned entries. */ -+ if (f->f_version != inode->i_version) { -+ offset = 2; -+ f->f_pos = offset; -+ f->f_version = inode->i_version; -+ } -+ -+ while(sc->nextReturn){ -+ curoffs++; -+ l = sc->nextReturn; -+ if (curoffs >= offset) { -+ int this_inode = yaffs_get_obj_inode(l); -+ int this_type = yaffs_get_obj_type(l); -+ -+ yaffs_get_obj_name(l, name, -+ YAFFS_MAX_NAME_LENGTH + 1); -+ T(YAFFS_TRACE_OS, -+ (TSTR("yaffs_readdir: %s inode %d\n"), -+ name, yaffs_get_obj_inode(l))); -+ -+ yaffs_gross_unlock(dev); -+ -+ if (filldir(dirent, -+ name, -+ strlen(name), -+ offset, -+ this_inode, -+ this_type) < 0){ -+ yaffs_gross_lock(dev); -+ goto out; -+ } -+ -+ yaffs_gross_lock(dev); -+ -+ offset++; -+ f->f_pos++; -+ } -+ yaffs_search_advance(sc); -+ } -+ -+out: -+ yaffs_search_end(sc); -+ yaffs_dev_to_lc(dev)->readdirProcess = NULL; -+ yaffs_gross_unlock(dev); -+ -+ return retVal; -+} -+ -+ -+ -+/* -+ * File creation. Allocate an inode, and we're done.. -+ */ -+ -+#if LINUX_VERSION_CODE < KERNEL_VERSION(2, 6, 29) -+#define YCRED(x) x -+#else -+#define YCRED(x) (x->cred) -+#endif -+ -+#if (LINUX_VERSION_CODE > KERNEL_VERSION(2, 5, 0)) -+static int yaffs_mknod(struct inode *dir, struct dentry *dentry, int mode, -+ dev_t rdev) -+#else -+static int yaffs_mknod(struct inode *dir, struct dentry *dentry, int mode, -+ int rdev) -+#endif -+{ -+ struct inode *inode; -+ -+ yaffs_obj_t *obj = NULL; -+ yaffs_dev_t *dev; -+ -+ yaffs_obj_t *parent = yaffs_InodeToObject(dir); -+ -+ int error = -ENOSPC; -+ uid_t uid = YCRED(current)->fsuid; -+ gid_t gid = (dir->i_mode & S_ISGID) ? dir->i_gid : YCRED(current)->fsgid; -+ -+ if ((dir->i_mode & S_ISGID) && S_ISDIR(mode)) -+ mode |= S_ISGID; -+ -+ if (parent) { -+ T(YAFFS_TRACE_OS, -+ (TSTR("yaffs_mknod: parent object %d type %d\n"), -+ parent->obj_id, parent->variant_type)); -+ } else { -+ T(YAFFS_TRACE_OS, -+ (TSTR("yaffs_mknod: could not get parent object\n"))); -+ return -EPERM; -+ } -+ -+ T(YAFFS_TRACE_OS, (TSTR("yaffs_mknod: making oject for %s, " -+ "mode %x dev %x\n"), -+ dentry->d_name.name, mode, rdev)); -+ -+ dev = parent->my_dev; -+ -+ yaffs_gross_lock(dev); -+ -+ switch (mode & S_IFMT) { -+ default: -+ /* Special (socket, fifo, device...) */ -+ T(YAFFS_TRACE_OS, (TSTR("yaffs_mknod: making special\n"))); -+#if (LINUX_VERSION_CODE > KERNEL_VERSION(2, 5, 0)) -+ obj = yaffs_create_special(parent, dentry->d_name.name, mode, uid, -+ gid, old_encode_dev(rdev)); -+#else -+ obj = yaffs_create_special(parent, dentry->d_name.name, mode, uid, -+ gid, rdev); -+#endif -+ break; -+ case S_IFREG: /* file */ -+ T(YAFFS_TRACE_OS, (TSTR("yaffs_mknod: making file\n"))); -+ obj = yaffs_create_file(parent, dentry->d_name.name, mode, uid, -+ gid); -+ break; -+ case S_IFDIR: /* directory */ -+ T(YAFFS_TRACE_OS, -+ (TSTR("yaffs_mknod: making directory\n"))); -+ obj = yaffs_create_dir(parent, dentry->d_name.name, mode, -+ uid, gid); -+ break; -+ case S_IFLNK: /* symlink */ -+ T(YAFFS_TRACE_OS, (TSTR("yaffs_mknod: making symlink\n"))); -+ obj = NULL; /* Do we ever get here? */ -+ break; -+ } -+ -+ /* Can not call yaffs_get_inode() with gross lock held */ -+ yaffs_gross_unlock(dev); -+ -+ if (obj) { -+ inode = yaffs_get_inode(dir->i_sb, mode, rdev, obj); -+ d_instantiate(dentry, inode); -+ update_dir_time(dir); -+ T(YAFFS_TRACE_OS, -+ (TSTR("yaffs_mknod created object %d count = %d\n"), -+ obj->obj_id, atomic_read(&inode->i_count))); -+ error = 0; -+ yaffs_fill_inode_from_obj(dir,parent); -+ } else { -+ T(YAFFS_TRACE_OS, -+ (TSTR("yaffs_mknod failed making object\n"))); -+ error = -ENOMEM; -+ } -+ -+ return error; -+} -+ -+static int yaffs_mkdir(struct inode *dir, struct dentry *dentry, int mode) -+{ -+ int retVal; -+ T(YAFFS_TRACE_OS, (TSTR("yaffs_mkdir\n"))); -+ retVal = yaffs_mknod(dir, dentry, mode | S_IFDIR, 0); -+ return retVal; -+} -+ -+#if (LINUX_VERSION_CODE > KERNEL_VERSION(2, 5, 0)) -+static int yaffs_create(struct inode *dir, struct dentry *dentry, int mode, -+ struct nameidata *n) -+#else -+static int yaffs_create(struct inode *dir, struct dentry *dentry, int mode) -+#endif -+{ -+ T(YAFFS_TRACE_OS,(TSTR("yaffs_create\n"))); -+ return yaffs_mknod(dir, dentry, mode | S_IFREG, 0); -+} -+ -+static int yaffs_unlink(struct inode *dir, struct dentry *dentry) -+{ -+ int retVal; -+ -+ yaffs_dev_t *dev; -+ yaffs_obj_t *obj; -+ -+ T(YAFFS_TRACE_OS, -+ (TSTR("yaffs_unlink %d:%s\n"), -+ (int)(dir->i_ino), -+ dentry->d_name.name)); -+ obj = yaffs_InodeToObject(dir); -+ dev = obj->my_dev; -+ -+ yaffs_gross_lock(dev); -+ -+ retVal = yaffs_unlinker(obj, dentry->d_name.name); -+ -+ if (retVal == YAFFS_OK) { -+ dentry->d_inode->i_nlink--; -+ dir->i_version++; -+ yaffs_gross_unlock(dev); -+ mark_inode_dirty(dentry->d_inode); -+ update_dir_time(dir); -+ return 0; -+ } -+ yaffs_gross_unlock(dev); -+ return -ENOTEMPTY; -+} -+ -+/* -+ * Create a link... -+ */ -+static int yaffs_link(struct dentry *old_dentry, struct inode *dir, -+ struct dentry *dentry) -+{ -+ struct inode *inode = old_dentry->d_inode; -+ yaffs_obj_t *obj = NULL; -+ yaffs_obj_t *link = NULL; -+ yaffs_dev_t *dev; -+ -+ T(YAFFS_TRACE_OS, (TSTR("yaffs_link\n"))); -+ -+ obj = yaffs_InodeToObject(inode); -+ dev = obj->my_dev; -+ -+ yaffs_gross_lock(dev); -+ -+ if (!S_ISDIR(inode->i_mode)) /* Don't link directories */ -+ link = yaffs_link_obj(yaffs_InodeToObject(dir), dentry->d_name.name, -+ obj); -+ -+ if (link) { -+ old_dentry->d_inode->i_nlink = yaffs_get_obj_link_count(obj); -+ d_instantiate(dentry, old_dentry->d_inode); -+ atomic_inc(&old_dentry->d_inode->i_count); -+ T(YAFFS_TRACE_OS, -+ (TSTR("yaffs_link link count %d i_count %d\n"), -+ old_dentry->d_inode->i_nlink, -+ atomic_read(&old_dentry->d_inode->i_count))); -+ } -+ -+ yaffs_gross_unlock(dev); -+ -+ if (link){ -+ update_dir_time(dir); -+ return 0; -+ } -+ -+ return -EPERM; -+} -+ -+static int yaffs_symlink(struct inode *dir, struct dentry *dentry, -+ const char *symname) -+{ -+ yaffs_obj_t *obj; -+ yaffs_dev_t *dev; -+ uid_t uid = YCRED(current)->fsuid; -+ gid_t gid = (dir->i_mode & S_ISGID) ? dir->i_gid : YCRED(current)->fsgid; -+ -+ T(YAFFS_TRACE_OS, (TSTR("yaffs_symlink\n"))); -+ -+ dev = yaffs_InodeToObject(dir)->my_dev; -+ yaffs_gross_lock(dev); -+ obj = yaffs_create_symlink(yaffs_InodeToObject(dir), dentry->d_name.name, -+ S_IFLNK | S_IRWXUGO, uid, gid, symname); -+ yaffs_gross_unlock(dev); -+ -+ if (obj) { -+ struct inode *inode; -+ -+ inode = yaffs_get_inode(dir->i_sb, obj->yst_mode, 0, obj); -+ d_instantiate(dentry, inode); -+ update_dir_time(dir); -+ T(YAFFS_TRACE_OS, (TSTR("symlink created OK\n"))); -+ return 0; -+ } else { -+ T(YAFFS_TRACE_OS, (TSTR("symlink not created\n"))); -+ } -+ -+ return -ENOMEM; -+} -+ -+#if (LINUX_VERSION_CODE > KERNEL_VERSION(2, 6, 34)) -+static int yaffs_sync_object(struct file *file, int datasync) -+#else -+static int yaffs_sync_object(struct file *file, struct dentry *dentry, -+ int datasync) -+#endif -+{ -+ -+ yaffs_obj_t *obj; -+ yaffs_dev_t *dev; -+#if (LINUX_VERSION_CODE > KERNEL_VERSION(2, 6, 34)) -+ struct dentry *dentry = file->f_path.dentry; -+#endif -+ -+ obj = yaffs_dentry_to_obj(dentry); -+ -+ dev = obj->my_dev; -+ -+ T(YAFFS_TRACE_OS | YAFFS_TRACE_SYNC, -+ (TSTR("yaffs_sync_object\n"))); -+ yaffs_gross_lock(dev); -+ yaffs_flush_file(obj, 1, datasync); -+ yaffs_gross_unlock(dev); -+ return 0; -+} -+ -+/* -+ * The VFS layer already does all the dentry stuff for rename. -+ * -+ * NB: POSIX says you can rename an object over an old object of the same name -+ */ -+static int yaffs_rename(struct inode *old_dir, struct dentry *old_dentry, -+ struct inode *new_dir, struct dentry *new_dentry) -+{ -+ yaffs_dev_t *dev; -+ int retVal = YAFFS_FAIL; -+ yaffs_obj_t *target; -+ -+ T(YAFFS_TRACE_OS, (TSTR("yaffs_rename\n"))); -+ dev = yaffs_InodeToObject(old_dir)->my_dev; -+ -+ yaffs_gross_lock(dev); -+ -+ /* Check if the target is an existing directory that is not empty. */ -+ target = yaffs_find_by_name(yaffs_InodeToObject(new_dir), -+ new_dentry->d_name.name); -+ -+ -+ -+ if (target && target->variant_type == YAFFS_OBJECT_TYPE_DIRECTORY && -+ !ylist_empty(&target->variant.dir_variant.children)) { -+ -+ T(YAFFS_TRACE_OS, (TSTR("target is non-empty dir\n"))); -+ -+ retVal = YAFFS_FAIL; -+ } else { -+ /* Now does unlinking internally using shadowing mechanism */ -+ T(YAFFS_TRACE_OS, (TSTR("calling yaffs_rename_obj\n"))); -+ -+ retVal = yaffs_rename_obj(yaffs_InodeToObject(old_dir), -+ old_dentry->d_name.name, -+ yaffs_InodeToObject(new_dir), -+ new_dentry->d_name.name); -+ } -+ yaffs_gross_unlock(dev); -+ -+ if (retVal == YAFFS_OK) { -+ if (target) { -+ new_dentry->d_inode->i_nlink--; -+ mark_inode_dirty(new_dentry->d_inode); -+ } -+ -+ update_dir_time(old_dir); -+ if(old_dir != new_dir) -+ update_dir_time(new_dir); -+ return 0; -+ } else { -+ return -ENOTEMPTY; -+ } -+} -+ -+static int yaffs_setattr(struct dentry *dentry, struct iattr *attr) -+{ -+ struct inode *inode = dentry->d_inode; -+ int error = 0; -+ yaffs_dev_t *dev; -+ -+ T(YAFFS_TRACE_OS, -+ (TSTR("yaffs_setattr of object %d\n"), -+ yaffs_InodeToObject(inode)->obj_id)); -+ -+ /* Fail if a requested resize >= 2GB */ -+ if (attr->ia_valid & ATTR_SIZE && -+ (attr->ia_size >> 31)) -+ error = -EINVAL; -+ -+ if (error == 0) -+ error = inode_change_ok(inode, attr); -+ if (error == 0) { -+ int result; -+ if (!error){ -+ error = yaffs_vfs_setattr(inode, attr); -+ T(YAFFS_TRACE_OS,(TSTR("inode_setattr called\n"))); -+ if (attr->ia_valid & ATTR_SIZE){ -+ yaffs_vfs_setsize(inode,attr->ia_size); -+ inode->i_blocks = (inode->i_size + 511) >> 9; -+ } -+ } -+ dev = yaffs_InodeToObject(inode)->my_dev; -+ if (attr->ia_valid & ATTR_SIZE){ -+ T(YAFFS_TRACE_OS,(TSTR("resize to %d(%x)\n"), -+ (int)(attr->ia_size),(int)(attr->ia_size))); -+ } -+ yaffs_gross_lock(dev); -+ result = yaffs_set_attribs(yaffs_InodeToObject(inode), attr); -+ if(result == YAFFS_OK) { -+ error = 0; -+ } else { -+ error = -EPERM; -+ } -+ yaffs_gross_unlock(dev); -+ -+ } -+ -+ T(YAFFS_TRACE_OS, -+ (TSTR("yaffs_setattr done returning %d\n"),error)); -+ -+ return error; -+} -+ -+#ifdef CONFIG_YAFFS_XATTR -+int yaffs_setxattr(struct dentry *dentry, const char *name, -+ const void *value, size_t size, int flags) -+{ -+ struct inode *inode = dentry->d_inode; -+ int error = 0; -+ yaffs_dev_t *dev; -+ yaffs_obj_t *obj = yaffs_InodeToObject(inode); -+ -+ T(YAFFS_TRACE_OS, -+ (TSTR("yaffs_setxattr of object %d\n"), -+ obj->obj_id)); -+ -+ -+ if (error == 0) { -+ int result; -+ dev = obj->my_dev; -+ yaffs_gross_lock(dev); -+ result = yaffs_set_xattrib(obj, name, value, size, flags); -+ if(result == YAFFS_OK) -+ error = 0; -+ else if(result < 0) -+ error = result; -+ yaffs_gross_unlock(dev); -+ -+ } -+ T(YAFFS_TRACE_OS, -+ (TSTR("yaffs_setxattr done returning %d\n"),error)); -+ -+ return error; -+} -+ -+ -+ssize_t yaffs_getxattr(struct dentry *dentry, const char *name, void *buff, -+ size_t size) -+{ -+ struct inode *inode = dentry->d_inode; -+ int error = 0; -+ yaffs_dev_t *dev; -+ yaffs_obj_t *obj = yaffs_InodeToObject(inode); -+ -+ T(YAFFS_TRACE_OS, -+ (TSTR("yaffs_getxattr \"%s\" from object %d\n"), -+ name, obj->obj_id)); -+ -+ if (error == 0) { -+ dev = obj->my_dev; -+ yaffs_gross_lock(dev); -+ error = yaffs_get_xattrib(obj, name, buff, size); -+ yaffs_gross_unlock(dev); -+ -+ } -+ T(YAFFS_TRACE_OS, -+ (TSTR("yaffs_getxattr done returning %d\n"),error)); -+ -+ return error; -+} -+ -+int yaffs_removexattr(struct dentry *dentry, const char *name) -+{ -+ struct inode *inode = dentry->d_inode; -+ int error = 0; -+ yaffs_dev_t *dev; -+ yaffs_obj_t *obj = yaffs_InodeToObject(inode); -+ -+ T(YAFFS_TRACE_OS, -+ (TSTR("yaffs_removexattr of object %d\n"), -+ obj->obj_id)); -+ -+ -+ if (error == 0) { -+ int result; -+ dev = obj->my_dev; -+ yaffs_gross_lock(dev); -+ result = yaffs_remove_xattrib(obj, name); -+ if(result == YAFFS_OK) -+ error = 0; -+ else if(result < 0) -+ error = result; -+ yaffs_gross_unlock(dev); -+ -+ } -+ T(YAFFS_TRACE_OS, -+ (TSTR("yaffs_removexattr done returning %d\n"),error)); -+ -+ return error; -+} -+ -+ssize_t yaffs_listxattr(struct dentry *dentry, char *buff, size_t size) -+{ -+ struct inode *inode = dentry->d_inode; -+ int error = 0; -+ yaffs_dev_t *dev; -+ yaffs_obj_t *obj = yaffs_InodeToObject(inode); -+ -+ T(YAFFS_TRACE_OS, -+ (TSTR("yaffs_listxattr of object %d\n"), -+ obj->obj_id)); -+ -+ -+ if (error == 0) { -+ dev = obj->my_dev; -+ yaffs_gross_lock(dev); -+ error = yaffs_list_xattrib(obj, buff, size); -+ yaffs_gross_unlock(dev); -+ -+ } -+ T(YAFFS_TRACE_OS, -+ (TSTR("yaffs_listxattr done returning %d\n"),error)); -+ -+ return error; -+} -+ -+#endif -+ -+ -+#if (LINUX_VERSION_CODE > KERNEL_VERSION(2, 6, 17)) -+static int yaffs_statfs(struct dentry *dentry, struct kstatfs *buf) -+{ -+ yaffs_dev_t *dev = yaffs_dentry_to_obj(dentry)->my_dev; -+ struct super_block *sb = dentry->d_sb; -+#elif (LINUX_VERSION_CODE > KERNEL_VERSION(2, 5, 0)) -+static int yaffs_statfs(struct super_block *sb, struct kstatfs *buf) -+{ -+ yaffs_dev_t *dev = yaffs_SuperToDevice(sb); -+#else -+static int yaffs_statfs(struct super_block *sb, struct statfs *buf) -+{ -+ yaffs_dev_t *dev = yaffs_SuperToDevice(sb); -+#endif -+ -+ T(YAFFS_TRACE_OS, (TSTR("yaffs_statfs\n"))); -+ -+ yaffs_gross_lock(dev); -+ -+ buf->f_type = YAFFS_MAGIC; -+ buf->f_bsize = sb->s_blocksize; -+ buf->f_namelen = 255; -+ -+ if (dev->data_bytes_per_chunk & (dev->data_bytes_per_chunk - 1)) { -+ /* Do this if chunk size is not a power of 2 */ -+ -+ uint64_t bytesInDev; -+ uint64_t bytesFree; -+ -+ bytesInDev = ((uint64_t)((dev->param.end_block - dev->param.start_block + 1))) * -+ ((uint64_t)(dev->param.chunks_per_block * dev->data_bytes_per_chunk)); -+ -+ do_div(bytesInDev, sb->s_blocksize); /* bytesInDev becomes the number of blocks */ -+ buf->f_blocks = bytesInDev; -+ -+ bytesFree = ((uint64_t)(yaffs_get_n_free_chunks(dev))) * -+ ((uint64_t)(dev->data_bytes_per_chunk)); -+ -+ do_div(bytesFree, sb->s_blocksize); -+ -+ buf->f_bfree = bytesFree; -+ -+ } else if (sb->s_blocksize > dev->data_bytes_per_chunk) { -+ -+ buf->f_blocks = -+ (dev->param.end_block - dev->param.start_block + 1) * -+ dev->param.chunks_per_block / -+ (sb->s_blocksize / dev->data_bytes_per_chunk); -+ buf->f_bfree = -+ yaffs_get_n_free_chunks(dev) / -+ (sb->s_blocksize / dev->data_bytes_per_chunk); -+ } else { -+ buf->f_blocks = -+ (dev->param.end_block - dev->param.start_block + 1) * -+ dev->param.chunks_per_block * -+ (dev->data_bytes_per_chunk / sb->s_blocksize); -+ -+ buf->f_bfree = -+ yaffs_get_n_free_chunks(dev) * -+ (dev->data_bytes_per_chunk / sb->s_blocksize); -+ } -+ -+ buf->f_files = 0; -+ buf->f_ffree = 0; -+ buf->f_bavail = buf->f_bfree; -+ -+ yaffs_gross_unlock(dev); -+ return 0; -+} -+ -+ -+ -+static void yaffs_flush_inodes(struct super_block *sb) -+{ -+ struct inode *iptr; -+ yaffs_obj_t *obj; -+ -+ list_for_each_entry(iptr,&sb->s_inodes, i_sb_list){ -+ obj = yaffs_InodeToObject(iptr); -+ if(obj){ -+ T(YAFFS_TRACE_OS, (TSTR("flushing obj %d\n"), -+ obj->obj_id)); -+ yaffs_flush_file(obj,1,0); -+ } -+ } -+} -+ -+ -+static void yaffs_flush_super(struct super_block *sb, int do_checkpoint) -+{ -+ yaffs_dev_t *dev = yaffs_SuperToDevice(sb); -+ if(!dev) -+ return; -+ -+ yaffs_flush_inodes(sb); -+ yaffs_update_dirty_dirs(dev); -+ yaffs_flush_whole_cache(dev); -+ if(do_checkpoint) -+ yaffs_checkpoint_save(dev); -+} -+ -+ -+static unsigned yaffs_bg_gc_urgency(yaffs_dev_t *dev) -+{ -+ unsigned erasedChunks = dev->n_erased_blocks * dev->param.chunks_per_block; -+ struct yaffs_LinuxContext *context = yaffs_dev_to_lc(dev); -+ unsigned scatteredFree = 0; /* Free chunks not in an erased block */ -+ -+ if(erasedChunks < dev->n_free_chunks) -+ scatteredFree = (dev->n_free_chunks - erasedChunks); -+ -+ if(!context->bgRunning) -+ return 0; -+ else if(scatteredFree < (dev->param.chunks_per_block * 2)) -+ return 0; -+ else if(erasedChunks > dev->n_free_chunks/2) -+ return 0; -+ else if(erasedChunks > dev->n_free_chunks/4) -+ return 1; -+ else -+ return 2; -+} -+ -+static int yaffs_do_sync_fs(struct super_block *sb, -+ int request_checkpoint) -+{ -+ -+ yaffs_dev_t *dev = yaffs_SuperToDevice(sb); -+ unsigned int oneshot_checkpoint = (yaffs_auto_checkpoint & 4); -+ unsigned gc_urgent = yaffs_bg_gc_urgency(dev); -+ int do_checkpoint; -+ -+ T(YAFFS_TRACE_OS | YAFFS_TRACE_SYNC | YAFFS_TRACE_BACKGROUND, -+ (TSTR("yaffs_do_sync_fs: gc-urgency %d %s %s%s\n"), -+ gc_urgent, -+ sb->s_dirt ? "dirty" : "clean", -+ request_checkpoint ? "checkpoint requested" : "no checkpoint", -+ oneshot_checkpoint ? " one-shot" : "" )); -+ -+ yaffs_gross_lock(dev); -+ do_checkpoint = ((request_checkpoint && !gc_urgent) || -+ oneshot_checkpoint) && -+ !dev->is_checkpointed; -+ -+ if (sb->s_dirt || do_checkpoint) { -+ yaffs_flush_super(sb, !dev->is_checkpointed && do_checkpoint); -+ sb->s_dirt = 0; -+ if(oneshot_checkpoint) -+ yaffs_auto_checkpoint &= ~4; -+ } -+ yaffs_gross_unlock(dev); -+ -+ return 0; -+} -+ -+/* -+ * yaffs background thread functions . -+ * yaffs_bg_thread_fn() the thread function -+ * yaffs_bg_start() launches the background thread. -+ * yaffs_bg_stop() cleans up the background thread. -+ * -+ * NB: -+ * The thread should only run after the yaffs is initialised -+ * The thread should be stopped before yaffs is unmounted. -+ * The thread should not do any writing while the fs is in read only. -+ */ -+ -+#ifdef YAFFS_COMPILE_BACKGROUND -+ -+void yaffs_background_waker(unsigned long data) -+{ -+ wake_up_process((struct task_struct *)data); -+} -+ -+static int yaffs_bg_thread_fn(void *data) -+{ -+ yaffs_dev_t *dev = (yaffs_dev_t *)data; -+ struct yaffs_LinuxContext *context = yaffs_dev_to_lc(dev); -+ unsigned long now = jiffies; -+ unsigned long next_dir_update = now; -+ unsigned long next_gc = now; -+ unsigned long expires; -+ unsigned int urgency; -+ -+ int gcResult; -+ struct timer_list timer; -+ -+ T(YAFFS_TRACE_BACKGROUND, -+ (TSTR("yaffs_background starting for dev %p\n"), -+ (void *)dev)); -+ -+#ifdef YAFFS_COMPILE_FREEZER -+ set_freezable(); -+#endif -+ while(context->bgRunning){ -+ T(YAFFS_TRACE_BACKGROUND, -+ (TSTR("yaffs_background\n"))); -+ -+ if(kthread_should_stop()) -+ break; -+ -+#ifdef YAFFS_COMPILE_FREEZER -+ if(try_to_freeze()) -+ continue; -+#endif -+ yaffs_gross_lock(dev); -+ -+ now = jiffies; -+ -+ if(time_after(now, next_dir_update) && yaffs_bg_enable){ -+ yaffs_update_dirty_dirs(dev); -+ next_dir_update = now + HZ; -+ } -+ -+ if(time_after(now,next_gc) && yaffs_bg_enable){ -+ if(!dev->is_checkpointed){ -+ urgency = yaffs_bg_gc_urgency(dev); -+ gcResult = yaffs_bg_gc(dev, urgency); -+ if(urgency > 1) -+ next_gc = now + HZ/20+1; -+ else if(urgency > 0) -+ next_gc = now + HZ/10+1; -+ else -+ next_gc = now + HZ * 2; -+ } else /* -+ * gc not running so set to next_dir_update -+ * to cut down on wake ups -+ */ -+ next_gc = next_dir_update; -+ } -+ yaffs_gross_unlock(dev); -+#if 1 -+ expires = next_dir_update; -+ if (time_before(next_gc,expires)) -+ expires = next_gc; -+ if(time_before(expires,now)) -+ expires = now + HZ; -+ -+ Y_INIT_TIMER(&timer); -+ timer.expires = expires+1; -+ timer.data = (unsigned long) current; -+ timer.function = yaffs_background_waker; -+ -+ set_current_state(TASK_INTERRUPTIBLE); -+ add_timer(&timer); -+ schedule(); -+ del_timer_sync(&timer); -+#else -+ msleep(10); -+#endif -+ } -+ -+ return 0; -+} -+ -+static int yaffs_bg_start(yaffs_dev_t *dev) -+{ -+ int retval = 0; -+ struct yaffs_LinuxContext *context = yaffs_dev_to_lc(dev); -+ -+ if(dev->read_only) -+ return -1; -+ -+ context->bgRunning = 1; -+ -+ context->bgThread = kthread_run(yaffs_bg_thread_fn, -+ (void *)dev,"yaffs-bg-%d",context->mount_id); -+ -+ if(IS_ERR(context->bgThread)){ -+ retval = PTR_ERR(context->bgThread); -+ context->bgThread = NULL; -+ context->bgRunning = 0; -+ } -+ return retval; -+} -+ -+static void yaffs_bg_stop(yaffs_dev_t *dev) -+{ -+ struct yaffs_LinuxContext *ctxt = yaffs_dev_to_lc(dev); -+ -+ ctxt->bgRunning = 0; -+ -+ if( ctxt->bgThread){ -+ kthread_stop(ctxt->bgThread); -+ ctxt->bgThread = NULL; -+ } -+} -+#else -+static int yaffs_bg_thread_fn(void *data) -+{ -+ return 0; -+} -+ -+static int yaffs_bg_start(yaffs_dev_t *dev) -+{ -+ return 0; -+} -+ -+static void yaffs_bg_stop(yaffs_dev_t *dev) -+{ -+} -+#endif -+ -+ -+#if (LINUX_VERSION_CODE > KERNEL_VERSION(2, 6, 17)) -+static void yaffs_write_super(struct super_block *sb) -+#else -+static int yaffs_write_super(struct super_block *sb) -+#endif -+{ -+ unsigned request_checkpoint = (yaffs_auto_checkpoint >= 2); -+ -+ T(YAFFS_TRACE_OS | YAFFS_TRACE_SYNC | YAFFS_TRACE_BACKGROUND, -+ (TSTR("yaffs_write_super%s\n"), -+ request_checkpoint ? " checkpt" : "")); -+ -+ yaffs_do_sync_fs(sb, request_checkpoint); -+ -+#if (LINUX_VERSION_CODE < KERNEL_VERSION(2, 6, 18)) -+ return 0; -+#endif -+} -+ -+ -+#if (LINUX_VERSION_CODE > KERNEL_VERSION(2, 6, 17)) -+static int yaffs_sync_fs(struct super_block *sb, int wait) -+#else -+static int yaffs_sync_fs(struct super_block *sb) -+#endif -+{ -+ unsigned request_checkpoint = (yaffs_auto_checkpoint >= 1); -+ -+ T(YAFFS_TRACE_OS | YAFFS_TRACE_SYNC, -+ (TSTR("yaffs_sync_fs%s\n"), -+ request_checkpoint ? " checkpt" : "")); -+ -+ yaffs_do_sync_fs(sb, request_checkpoint); -+ -+ return 0; -+} -+ -+#ifdef YAFFS_USE_OWN_IGET -+ -+static struct inode *yaffs_iget(struct super_block *sb, unsigned long ino) -+{ -+ struct inode *inode; -+ yaffs_obj_t *obj; -+ yaffs_dev_t *dev = yaffs_SuperToDevice(sb); -+ -+ T(YAFFS_TRACE_OS, -+ (TSTR("yaffs_iget for %lu\n"), ino)); -+ -+ inode = iget_locked(sb, ino); -+ if (!inode) -+ return ERR_PTR(-ENOMEM); -+ if (!(inode->i_state & I_NEW)) -+ return inode; -+ -+ /* NB This is called as a side effect of other functions, but -+ * we had to release the lock to prevent deadlocks, so -+ * need to lock again. -+ */ -+ -+ yaffs_gross_lock(dev); -+ -+ obj = yaffs_find_by_number(dev, inode->i_ino); -+ -+ yaffs_fill_inode_from_obj(inode, obj); -+ -+ yaffs_gross_unlock(dev); -+ -+ unlock_new_inode(inode); -+ return inode; -+} -+ -+#else -+ -+static void yaffs_read_inode(struct inode *inode) -+{ -+ /* NB This is called as a side effect of other functions, but -+ * we had to release the lock to prevent deadlocks, so -+ * need to lock again. -+ */ -+ -+ yaffs_obj_t *obj; -+ yaffs_dev_t *dev = yaffs_SuperToDevice(inode->i_sb); -+ -+ T(YAFFS_TRACE_OS, -+ (TSTR("yaffs_read_inode for %d\n"), (int)inode->i_ino)); -+ -+ if(current != yaffs_dev_to_lc(dev)->readdirProcess) -+ yaffs_gross_lock(dev); -+ -+ obj = yaffs_find_by_number(dev, inode->i_ino); -+ -+ yaffs_fill_inode_from_obj(inode, obj); -+ -+ if(current != yaffs_dev_to_lc(dev)->readdirProcess) -+ yaffs_gross_unlock(dev); -+} -+ -+#endif -+ -+static YLIST_HEAD(yaffs_context_list); -+struct semaphore yaffs_context_lock; -+ -+static void yaffs_put_super(struct super_block *sb) -+{ -+ yaffs_dev_t *dev = yaffs_SuperToDevice(sb); -+ -+ T(YAFFS_TRACE_OS, (TSTR("yaffs_put_super\n"))); -+ -+ T(YAFFS_TRACE_OS | YAFFS_TRACE_BACKGROUND, -+ (TSTR("Shutting down yaffs background thread\n"))); -+ yaffs_bg_stop(dev); -+ T(YAFFS_TRACE_OS | YAFFS_TRACE_BACKGROUND, -+ (TSTR("yaffs background thread shut down\n"))); -+ -+ yaffs_gross_lock(dev); -+ -+ yaffs_flush_super(sb,1); -+ -+ if (yaffs_dev_to_lc(dev)->putSuperFunc) -+ yaffs_dev_to_lc(dev)->putSuperFunc(sb); -+ -+ -+ yaffs_deinitialise(dev); -+ -+ yaffs_gross_unlock(dev); -+ -+ down(&yaffs_context_lock); -+ ylist_del_init(&(yaffs_dev_to_lc(dev)->contextList)); -+ up(&yaffs_context_lock); -+ -+ if (yaffs_dev_to_lc(dev)->spareBuffer) { -+ YFREE(yaffs_dev_to_lc(dev)->spareBuffer); -+ yaffs_dev_to_lc(dev)->spareBuffer = NULL; -+ } -+ -+ kfree(dev); -+} -+ -+ -+static void yaffs_MTDPutSuper(struct super_block *sb) -+{ -+ struct mtd_info *mtd = yaffs_dev_to_mtd(yaffs_SuperToDevice(sb)); -+ -+ if (mtd->sync) -+ mtd->sync(mtd); -+ -+ put_mtd_device(mtd); -+} -+ -+ -+static void yaffs_touch_super(yaffs_dev_t *dev) -+{ -+ struct super_block *sb = yaffs_dev_to_lc(dev)->superBlock; -+ -+ T(YAFFS_TRACE_OS, (TSTR("yaffs_touch_super() sb = %p\n"), sb)); -+ if (sb) -+ sb->s_dirt = 1; -+} -+ -+typedef struct { -+ int inband_tags; -+ int skip_checkpoint_read; -+ int skip_checkpoint_write; -+ int no_cache; -+ int tags_ecc_on; -+ int tags_ecc_overridden; -+ int lazy_loading_enabled; -+ int lazy_loading_overridden; -+ int empty_lost_and_found; -+ int empty_lost_and_found_overridden; -+} yaffs_options; -+ -+#define MAX_OPT_LEN 30 -+static int yaffs_parse_options(yaffs_options *options, const char *options_str) -+{ -+ char cur_opt[MAX_OPT_LEN + 1]; -+ int p; -+ int error = 0; -+ -+ /* Parse through the options which is a comma seperated list */ -+ -+ while (options_str && *options_str && !error) { -+ memset(cur_opt, 0, MAX_OPT_LEN + 1); -+ p = 0; -+ -+ while(*options_str == ',') -+ options_str++; -+ -+ while (*options_str && *options_str != ',') { -+ if (p < MAX_OPT_LEN) { -+ cur_opt[p] = *options_str; -+ p++; -+ } -+ options_str++; -+ } -+ -+ if (!strcmp(cur_opt, "inband-tags")) -+ options->inband_tags = 1; -+ else if (!strcmp(cur_opt, "tags-ecc-off")){ -+ options->tags_ecc_on = 0; -+ options->tags_ecc_overridden=1; -+ } else if (!strcmp(cur_opt, "tags-ecc-on")){ -+ options->tags_ecc_on = 1; -+ options->tags_ecc_overridden = 1; -+ } else if (!strcmp(cur_opt, "lazy-loading-off")){ -+ options->lazy_loading_enabled = 0; -+ options->lazy_loading_overridden=1; -+ } else if (!strcmp(cur_opt, "lazy-loading-on")){ -+ options->lazy_loading_enabled = 1; -+ options->lazy_loading_overridden = 1; -+ } else if (!strcmp(cur_opt, "empty-lost-and-found-off")){ -+ options->empty_lost_and_found = 0; -+ options->empty_lost_and_found_overridden=1; -+ } else if (!strcmp(cur_opt, "empty-lost-and-found-on")){ -+ options->empty_lost_and_found = 1; -+ options->empty_lost_and_found_overridden=1; -+ } else if (!strcmp(cur_opt, "no-cache")) -+ options->no_cache = 1; -+ else if (!strcmp(cur_opt, "no-checkpoint-read")) -+ options->skip_checkpoint_read = 1; -+ else if (!strcmp(cur_opt, "no-checkpoint-write")) -+ options->skip_checkpoint_write = 1; -+ else if (!strcmp(cur_opt, "no-checkpoint")) { -+ options->skip_checkpoint_read = 1; -+ options->skip_checkpoint_write = 1; -+ } else { -+ printk(KERN_INFO "yaffs: Bad mount option \"%s\"\n", -+ cur_opt); -+ error = 1; -+ } -+ } -+ -+ return error; -+} -+ -+static struct super_block *yaffs_internal_read_super(int yaffs_version, -+ struct super_block *sb, -+ void *data, int silent) -+{ -+ int nBlocks; -+ struct inode *inode = NULL; -+ struct dentry *root; -+ yaffs_dev_t *dev = 0; -+ char devname_buf[BDEVNAME_SIZE + 1]; -+ struct mtd_info *mtd; -+ int err; -+ char *data_str = (char *)data; -+ struct yaffs_LinuxContext *context = NULL; -+ yaffs_param_t *param; -+ -+ int read_only = 0; -+ -+ yaffs_options options; -+ -+ unsigned mount_id; -+ int found; -+ struct yaffs_LinuxContext *context_iterator; -+ struct ylist_head *l; -+ -+ sb->s_magic = YAFFS_MAGIC; -+ sb->s_op = &yaffs_super_ops; -+ sb->s_flags |= MS_NOATIME; -+ -+ read_only =((sb->s_flags & MS_RDONLY) != 0); -+ -+ -+#ifdef YAFFS_COMPILE_EXPORTFS -+ sb->s_export_op = &yaffs_export_ops; -+#endif -+ -+ if (!sb) -+ printk(KERN_INFO "yaffs: sb is NULL\n"); -+ else if (!sb->s_dev) -+ printk(KERN_INFO "yaffs: sb->s_dev is NULL\n"); -+ else if (!yaffs_devname(sb, devname_buf)) -+ printk(KERN_INFO "yaffs: devname is NULL\n"); -+ else -+ printk(KERN_INFO "yaffs: dev is %d name is \"%s\" %s\n", -+ sb->s_dev, -+ yaffs_devname(sb, devname_buf), -+ read_only ? "ro" : "rw"); -+ -+ if (!data_str) -+ data_str = ""; -+ -+ printk(KERN_INFO "yaffs: passed flags \"%s\"\n", data_str); -+ -+ memset(&options, 0, sizeof(options)); -+ -+ if (yaffs_parse_options(&options, data_str)) { -+ /* Option parsing failed */ -+ return NULL; -+ } -+ -+ -+ sb->s_blocksize = PAGE_CACHE_SIZE; -+ sb->s_blocksize_bits = PAGE_CACHE_SHIFT; -+ -+ T(YAFFS_TRACE_OS, -+ (TSTR("yaffs_read_super: Using yaffs%d\n"), yaffs_version)); -+ T(YAFFS_TRACE_OS, -+ (TSTR("yaffs_read_super: block size %d\n"), -+ (int)(sb->s_blocksize))); -+ -+ T(YAFFS_TRACE_ALWAYS, -+ (TSTR("yaffs: Attempting MTD mount of %u.%u,\"%s\"\n"), -+ MAJOR(sb->s_dev), MINOR(sb->s_dev), -+ yaffs_devname(sb, devname_buf))); -+ -+ /* Check it's an mtd device..... */ -+ if (MAJOR(sb->s_dev) != MTD_BLOCK_MAJOR) -+ return NULL; /* This isn't an mtd device */ -+ -+ /* Get the device */ -+ mtd = get_mtd_device(NULL, MINOR(sb->s_dev)); -+ if (!mtd) { -+ T(YAFFS_TRACE_ALWAYS, -+ (TSTR("yaffs: MTD device #%u doesn't appear to exist\n"), -+ MINOR(sb->s_dev))); -+ return NULL; -+ } -+ /* Check it's NAND */ -+ if (mtd->type != MTD_NANDFLASH) { -+ T(YAFFS_TRACE_ALWAYS, -+ (TSTR("yaffs: MTD device is not NAND it's type %d\n"), -+ mtd->type)); -+ return NULL; -+ } -+ -+ T(YAFFS_TRACE_OS, (TSTR(" erase %p\n"), mtd->erase)); -+ T(YAFFS_TRACE_OS, (TSTR(" read %p\n"), mtd->read)); -+ T(YAFFS_TRACE_OS, (TSTR(" write %p\n"), mtd->write)); -+ T(YAFFS_TRACE_OS, (TSTR(" readoob %p\n"), mtd->read_oob)); -+ T(YAFFS_TRACE_OS, (TSTR(" writeoob %p\n"), mtd->write_oob)); -+ T(YAFFS_TRACE_OS, (TSTR(" block_isbad %p\n"), mtd->block_isbad)); -+ T(YAFFS_TRACE_OS, (TSTR(" block_markbad %p\n"), mtd->block_markbad)); -+ T(YAFFS_TRACE_OS, (TSTR(" %s %d\n"), WRITE_SIZE_STR, WRITE_SIZE(mtd))); -+ T(YAFFS_TRACE_OS, (TSTR(" oobsize %d\n"), mtd->oobsize)); -+ T(YAFFS_TRACE_OS, (TSTR(" erasesize %d\n"), mtd->erasesize)); -+#if LINUX_VERSION_CODE < KERNEL_VERSION(2, 6, 29) -+ T(YAFFS_TRACE_OS, (TSTR(" size %u\n"), mtd->size)); -+#else -+ T(YAFFS_TRACE_OS, (TSTR(" size %lld\n"), mtd->size)); -+#endif -+ -+#ifdef CONFIG_YAFFS_AUTO_YAFFS2 -+ -+ if (yaffs_version == 1 && WRITE_SIZE(mtd) >= 2048) { -+ T(YAFFS_TRACE_ALWAYS, -+ (TSTR("yaffs: auto selecting yaffs2\n"))); -+ yaffs_version = 2; -+ } -+ -+ /* Added NCB 26/5/2006 for completeness */ -+ if (yaffs_version == 2 && !options.inband_tags && WRITE_SIZE(mtd) == 512) { -+ T(YAFFS_TRACE_ALWAYS, -+ (TSTR("yaffs: auto selecting yaffs1\n"))); -+ yaffs_version = 1; -+ } -+ -+#endif -+ -+ if (yaffs_version == 2) { -+ /* Check for version 2 style functions */ -+ if (!mtd->erase || -+ !mtd->block_isbad || -+ !mtd->block_markbad || -+ !mtd->read || -+ !mtd->write || -+#if (LINUX_VERSION_CODE > KERNEL_VERSION(2, 6, 17)) -+ !mtd->read_oob || !mtd->write_oob) { -+#else -+ !mtd->write_ecc || -+ !mtd->read_ecc || !mtd->read_oob || !mtd->write_oob) { -+#endif -+ T(YAFFS_TRACE_ALWAYS, -+ (TSTR("yaffs: MTD device does not support required " -+ "functions\n"))); -+ return NULL; -+ } -+ -+ if ((WRITE_SIZE(mtd) < YAFFS_MIN_YAFFS2_CHUNK_SIZE || -+ mtd->oobsize < YAFFS_MIN_YAFFS2_SPARE_SIZE) && -+ !options.inband_tags) { -+ T(YAFFS_TRACE_ALWAYS, -+ (TSTR("yaffs: MTD device does not have the " -+ "right page sizes\n"))); -+ return NULL; -+ } -+ } else { -+ /* Check for V1 style functions */ -+ if (!mtd->erase || -+ !mtd->read || -+ !mtd->write || -+#if (LINUX_VERSION_CODE > KERNEL_VERSION(2, 6, 17)) -+ !mtd->read_oob || !mtd->write_oob) { -+#else -+ !mtd->write_ecc || -+ !mtd->read_ecc || !mtd->read_oob || !mtd->write_oob) { -+#endif -+ T(YAFFS_TRACE_ALWAYS, -+ (TSTR("yaffs: MTD device does not support required " -+ "functions\n"))); -+ return NULL; -+ } -+ -+ if (WRITE_SIZE(mtd) < YAFFS_BYTES_PER_CHUNK || -+ mtd->oobsize != YAFFS_BYTES_PER_SPARE) { -+ T(YAFFS_TRACE_ALWAYS, -+ (TSTR("yaffs: MTD device does not support have the " -+ "right page sizes\n"))); -+ return NULL; -+ } -+ } -+ -+ /* OK, so if we got here, we have an MTD that's NAND and looks -+ * like it has the right capabilities -+ * Set the yaffs_dev_t up for mtd -+ */ -+ -+ if (!read_only && !(mtd->flags & MTD_WRITEABLE)){ -+ read_only = 1; -+ printk(KERN_INFO "yaffs: mtd is read only, setting superblock read only"); -+ sb->s_flags |= MS_RDONLY; -+ } -+ -+ dev = kmalloc(sizeof(yaffs_dev_t), GFP_KERNEL); -+ context = kmalloc(sizeof(struct yaffs_LinuxContext),GFP_KERNEL); -+ -+ if(!dev || !context ){ -+ if(dev) -+ kfree(dev); -+ if(context) -+ kfree(context); -+ dev = NULL; -+ context = NULL; -+ } -+ -+ if (!dev) { -+ /* Deep shit could not allocate device structure */ -+ T(YAFFS_TRACE_ALWAYS, -+ (TSTR("yaffs_read_super: Failed trying to allocate " -+ "yaffs_dev_t. \n"))); -+ return NULL; -+ } -+ memset(dev, 0, sizeof(yaffs_dev_t)); -+ param = &(dev->param); -+ -+ memset(context,0,sizeof(struct yaffs_LinuxContext)); -+ dev->os_context = context; -+ YINIT_LIST_HEAD(&(context->contextList)); -+ context->dev = dev; -+ context->superBlock = sb; -+ -+ dev->read_only = read_only; -+ -+#if (LINUX_VERSION_CODE > KERNEL_VERSION(2, 5, 0)) -+ sb->s_fs_info = dev; -+#else -+ sb->u.generic_sbp = dev; -+#endif -+ -+ dev->driver_context = mtd; -+ param->name = mtd->name; -+ -+ /* Set up the memory size parameters.... */ -+ -+ nBlocks = YCALCBLOCKS(mtd->size, (YAFFS_CHUNKS_PER_BLOCK * YAFFS_BYTES_PER_CHUNK)); -+ -+ param->start_block = 0; -+ param->end_block = nBlocks - 1; -+ param->chunks_per_block = YAFFS_CHUNKS_PER_BLOCK; -+ param->total_bytes_per_chunk = YAFFS_BYTES_PER_CHUNK; -+ param->n_reserved_blocks = 5; -+ param->n_caches = (options.no_cache) ? 0 : 10; -+ param->inband_tags = options.inband_tags; -+ -+#ifdef CONFIG_YAFFS_DISABLE_LAZY_LOAD -+ param->disable_lazy_load = 1; -+#endif -+#ifdef CONFIG_YAFFS_XATTR -+ param->enable_xattr = 1; -+#endif -+ if(options.lazy_loading_overridden) -+ param->disable_lazy_load = !options.lazy_loading_enabled; -+ -+#ifdef CONFIG_YAFFS_DISABLE_TAGS_ECC -+ param->no_tags_ecc = 1; -+#endif -+ -+#ifdef CONFIG_YAFFS_DISABLE_BACKGROUND -+#else -+ param->defered_dir_update = 1; -+#endif -+ -+ if(options.tags_ecc_overridden) -+ param->no_tags_ecc = !options.tags_ecc_on; -+ -+#ifdef CONFIG_YAFFS_EMPTY_LOST_AND_FOUND -+ param->empty_lost_n_found = 1; -+#endif -+ -+#ifdef CONFIG_YAFFS_DISABLE_BLOCK_REFRESHING -+ param->refresh_period = 0; -+#else -+ param->refresh_period = 500; -+#endif -+ -+#ifdef CONFIG_YAFFS__ALWAYS_CHECK_CHUNK_ERASED -+ param->always_check_erased = 1; -+#endif -+ -+ if(options.empty_lost_and_found_overridden) -+ param->empty_lost_n_found = options.empty_lost_and_found; -+ -+ /* ... and the functions. */ -+ if (yaffs_version == 2) { -+ param->write_chunk_tags_fn = -+ nandmtd2_WriteChunkWithTagsToNAND; -+ param->read_chunk_tags_fn = -+ nandmtd2_ReadChunkWithTagsFromNAND; -+ param->bad_block_fn = nandmtd2_MarkNANDBlockBad; -+ param->query_block_fn = nandmtd2_QueryNANDBlock; -+ yaffs_dev_to_lc(dev)->spareBuffer = YMALLOC(mtd->oobsize); -+ param->is_yaffs2 = 1; -+#if (LINUX_VERSION_CODE > KERNEL_VERSION(2, 6, 17)) -+ param->total_bytes_per_chunk = mtd->writesize; -+ param->chunks_per_block = mtd->erasesize / mtd->writesize; -+#else -+ param->total_bytes_per_chunk = mtd->oobblock; -+ param->chunks_per_block = mtd->erasesize / mtd->oobblock; -+#endif -+ nBlocks = YCALCBLOCKS(mtd->size, mtd->erasesize); -+ -+ param->start_block = 0; -+ param->end_block = nBlocks - 1; -+ } else { -+#if (LINUX_VERSION_CODE > KERNEL_VERSION(2, 6, 17)) -+ /* use the MTD interface in yaffs_mtdif1.c */ -+ param->write_chunk_tags_fn = -+ nandmtd1_WriteChunkWithTagsToNAND; -+ param->read_chunk_tags_fn = -+ nandmtd1_ReadChunkWithTagsFromNAND; -+ param->bad_block_fn = nandmtd1_MarkNANDBlockBad; -+ param->query_block_fn = nandmtd1_QueryNANDBlock; -+#else -+ param->write_chunk_fn = nandmtd_WriteChunkToNAND; -+ param->read_chunk_fn = nandmtd_ReadChunkFromNAND; -+#endif -+ param->is_yaffs2 = 0; -+ } -+ /* ... and common functions */ -+ param->erase_fn = nandmtd_EraseBlockInNAND; -+ param->initialise_flash_fn = nandmtd_InitialiseNAND; -+ -+ yaffs_dev_to_lc(dev)->putSuperFunc = yaffs_MTDPutSuper; -+ -+ param->sb_dirty_fn = yaffs_touch_super; -+ param->gc_control = yaffs_gc_control_callback; -+ -+ yaffs_dev_to_lc(dev)->superBlock= sb; -+ -+ -+#ifndef CONFIG_YAFFS_DOES_ECC -+ param->use_nand_ecc = 1; -+#endif -+ -+#ifdef CONFIG_YAFFS_DISABLE_WIDE_TNODES -+ param->wide_tnodes_disabled = 1; -+#endif -+ -+ param->skip_checkpt_rd = options.skip_checkpoint_read; -+ param->skip_checkpt_wr = options.skip_checkpoint_write; -+ -+ down(&yaffs_context_lock); -+ /* Get a mount id */ -+ found = 0; -+ for(mount_id=0; ! found; mount_id++){ -+ found = 1; -+ ylist_for_each(l,&yaffs_context_list){ -+ context_iterator = ylist_entry(l,struct yaffs_LinuxContext,contextList); -+ if(context_iterator->mount_id == mount_id) -+ found = 0; -+ } -+ } -+ context->mount_id = mount_id; -+ -+ ylist_add_tail(&(yaffs_dev_to_lc(dev)->contextList), &yaffs_context_list); -+ up(&yaffs_context_lock); -+ -+ /* Directory search handling...*/ -+ YINIT_LIST_HEAD(&(yaffs_dev_to_lc(dev)->searchContexts)); -+ param->remove_obj_fn = yaffs_remove_obj_callback; -+ -+ init_MUTEX(&(yaffs_dev_to_lc(dev)->grossLock)); -+ -+ yaffs_gross_lock(dev); -+ -+ err = yaffs_guts_initialise(dev); -+ -+ T(YAFFS_TRACE_OS, -+ (TSTR("yaffs_read_super: guts initialised %s\n"), -+ (err == YAFFS_OK) ? "OK" : "FAILED")); -+ -+ if(err == YAFFS_OK) -+ yaffs_bg_start(dev); -+ -+ if(!context->bgThread) -+ param->defered_dir_update = 0; -+ -+ -+ /* Release lock before yaffs_get_inode() */ -+ yaffs_gross_unlock(dev); -+ -+ /* Create root inode */ -+ if (err == YAFFS_OK) -+ inode = yaffs_get_inode(sb, S_IFDIR | 0755, 0, -+ yaffs_root(dev)); -+ -+ if (!inode) -+ return NULL; -+ -+ inode->i_op = &yaffs_dir_inode_operations; -+ inode->i_fop = &yaffs_dir_operations; -+ -+ T(YAFFS_TRACE_OS, (TSTR("yaffs_read_super: got root inode\n"))); -+ -+ root = d_alloc_root(inode); -+ -+ T(YAFFS_TRACE_OS, (TSTR("yaffs_read_super: d_alloc_root done\n"))); -+ -+ if (!root) { -+ iput(inode); -+ return NULL; -+ } -+ sb->s_root = root; -+ sb->s_dirt = !dev->is_checkpointed; -+ T(YAFFS_TRACE_ALWAYS, -+ (TSTR("yaffs_read_super: is_checkpointed %d\n"), -+ dev->is_checkpointed)); -+ -+ T(YAFFS_TRACE_OS, (TSTR("yaffs_read_super: done\n"))); -+ return sb; -+} -+ -+ -+#if (LINUX_VERSION_CODE > KERNEL_VERSION(2, 5, 0)) -+static int yaffs_internal_read_super_mtd(struct super_block *sb, void *data, -+ int silent) -+{ -+ return yaffs_internal_read_super(1, sb, data, silent) ? 0 : -EINVAL; -+} -+ -+#if (LINUX_VERSION_CODE > KERNEL_VERSION(2, 6, 17)) -+static int yaffs_read_super(struct file_system_type *fs, -+ int flags, const char *dev_name, -+ void *data, struct vfsmount *mnt) -+{ -+ -+ return get_sb_bdev(fs, flags, dev_name, data, -+ yaffs_internal_read_super_mtd, mnt); -+} -+#else -+static struct super_block *yaffs_read_super(struct file_system_type *fs, -+ int flags, const char *dev_name, -+ void *data) -+{ -+ -+ return get_sb_bdev(fs, flags, dev_name, data, -+ yaffs_internal_read_super_mtd); -+} -+#endif -+ -+static struct file_system_type yaffs_fs_type = { -+ .owner = THIS_MODULE, -+ .name = "yaffs", -+ .get_sb = yaffs_read_super, -+ .kill_sb = kill_block_super, -+ .fs_flags = FS_REQUIRES_DEV, -+}; -+#else -+static struct super_block *yaffs_read_super(struct super_block *sb, void *data, -+ int silent) -+{ -+ return yaffs_internal_read_super(1, sb, data, silent); -+} -+ -+static DECLARE_FSTYPE(yaffs_fs_type, "yaffs", yaffs_read_super, -+ FS_REQUIRES_DEV); -+#endif -+ -+ -+#ifdef CONFIG_YAFFS_YAFFS2 -+ -+#if (LINUX_VERSION_CODE > KERNEL_VERSION(2, 5, 0)) -+static int yaffs2_internal_read_super_mtd(struct super_block *sb, void *data, -+ int silent) -+{ -+ return yaffs_internal_read_super(2, sb, data, silent) ? 0 : -EINVAL; -+} -+ -+#if (LINUX_VERSION_CODE > KERNEL_VERSION(2, 6, 17)) -+static int yaffs2_read_super(struct file_system_type *fs, -+ int flags, const char *dev_name, void *data, -+ struct vfsmount *mnt) -+{ -+ return get_sb_bdev(fs, flags, dev_name, data, -+ yaffs2_internal_read_super_mtd, mnt); -+} -+#else -+static struct super_block *yaffs2_read_super(struct file_system_type *fs, -+ int flags, const char *dev_name, -+ void *data) -+{ -+ -+ return get_sb_bdev(fs, flags, dev_name, data, -+ yaffs2_internal_read_super_mtd); -+} -+#endif -+ -+static struct file_system_type yaffs2_fs_type = { -+ .owner = THIS_MODULE, -+ .name = "yaffs2", -+ .get_sb = yaffs2_read_super, -+ .kill_sb = kill_block_super, -+ .fs_flags = FS_REQUIRES_DEV, -+}; -+#else -+static struct super_block *yaffs2_read_super(struct super_block *sb, -+ void *data, int silent) -+{ -+ return yaffs_internal_read_super(2, sb, data, silent); -+} -+ -+static DECLARE_FSTYPE(yaffs2_fs_type, "yaffs2", yaffs2_read_super, -+ FS_REQUIRES_DEV); -+#endif -+ -+#endif /* CONFIG_YAFFS_YAFFS2 */ -+ -+static struct proc_dir_entry *my_proc_entry; -+static struct proc_dir_entry *debug_proc_entry; -+ -+static char *yaffs_dump_dev_part0(char *buf, yaffs_dev_t * dev) -+{ -+ buf += sprintf(buf, "start_block.......... %d\n", dev->param.start_block); -+ buf += sprintf(buf, "end_block............ %d\n", dev->param.end_block); -+ buf += sprintf(buf, "total_bytes_per_chunk %d\n", dev->param.total_bytes_per_chunk); -+ buf += sprintf(buf, "use_nand_ecc......... %d\n", dev->param.use_nand_ecc); -+ buf += sprintf(buf, "no_tags_ecc.......... %d\n", dev->param.no_tags_ecc); -+ buf += sprintf(buf, "is_yaffs2............ %d\n", dev->param.is_yaffs2); -+ buf += sprintf(buf, "inband_tags.......... %d\n", dev->param.inband_tags); -+ buf += sprintf(buf, "empty_lost_n_found... %d\n", dev->param.empty_lost_n_found); -+ buf += sprintf(buf, "disable_lazy_load.... %d\n", dev->param.disable_lazy_load); -+ buf += sprintf(buf, "refresh_period....... %d\n", dev->param.refresh_period); -+ buf += sprintf(buf, "n_caches............. %d\n", dev->param.n_caches); -+ buf += sprintf(buf, "n_reserved_blocks.... %d\n", dev->param.n_reserved_blocks); -+ buf += sprintf(buf, "always_check_erased.. %d\n", dev->param.always_check_erased); -+ -+ buf += sprintf(buf, "\n"); -+ -+ return buf; -+} -+ -+ -+static char *yaffs_dump_dev_part1(char *buf, yaffs_dev_t * dev) -+{ -+ buf += sprintf(buf, "data_bytes_per_chunk. %d\n", dev->data_bytes_per_chunk); -+ buf += sprintf(buf, "chunk_grp_bits....... %d\n", dev->chunk_grp_bits); -+ buf += sprintf(buf, "chunk_grp_size....... %d\n", dev->chunk_grp_size); -+ buf += sprintf(buf, "n_erased_blocks...... %d\n", dev->n_erased_blocks); -+ buf += sprintf(buf, "blocks_in_checkpt.... %d\n", dev->blocks_in_checkpt); -+ buf += sprintf(buf, "\n"); -+ buf += sprintf(buf, "n_tnodes............. %d\n", dev->n_tnodes); -+ buf += sprintf(buf, "n_obj................ %d\n", dev->n_obj); -+ buf += sprintf(buf, "n_free_chunks........ %d\n", dev->n_free_chunks); -+ buf += sprintf(buf, "\n"); -+ buf += sprintf(buf, "n_page_writes........ %u\n", dev->n_page_writes); -+ buf += sprintf(buf, "n_page_reads......... %u\n", dev->n_page_reads); -+ buf += sprintf(buf, "n_erasures........... %u\n", dev->n_erasures); -+ buf += sprintf(buf, "n_gc_copies.......... %u\n", dev->n_gc_copies); -+ buf += sprintf(buf, "all_gcs.............. %u\n", dev->all_gcs); -+ buf += sprintf(buf, "passive_gc_count..... %u\n", dev->passive_gc_count); -+ buf += sprintf(buf, "oldest_dirty_gc_count %u\n", dev->oldest_dirty_gc_count); -+ buf += sprintf(buf, "n_gc_blocks.......... %u\n", dev->n_gc_blocks); -+ buf += sprintf(buf, "bg_gcs............... %u\n", dev->bg_gcs); -+ buf += sprintf(buf, "n_retired_writes..... %u\n", dev->n_retired_writes); -+ buf += sprintf(buf, "nRetireBlocks........ %u\n", dev->n_retired_blocks); -+ buf += sprintf(buf, "n_ecc_fixed.......... %u\n", dev->n_ecc_fixed); -+ buf += sprintf(buf, "n_ecc_unfixed........ %u\n", dev->n_ecc_unfixed); -+ buf += sprintf(buf, "n_tags_ecc_fixed..... %u\n", dev->n_tags_ecc_fixed); -+ buf += sprintf(buf, "n_tags_ecc_unfixed... %u\n", dev->n_tags_ecc_unfixed); -+ buf += sprintf(buf, "cache_hits........... %u\n", dev->cache_hits); -+ buf += sprintf(buf, "n_deleted_files...... %u\n", dev->n_deleted_files); -+ buf += sprintf(buf, "n_unlinked_files..... %u\n", dev->n_unlinked_files); -+ buf += sprintf(buf, "refresh_count........ %u\n", dev->refresh_count); -+ buf += sprintf(buf, "n_bg_deletions....... %u\n", dev->n_bg_deletions); -+ -+ return buf; -+} -+ -+static int yaffs_proc_read(char *page, -+ char **start, -+ off_t offset, int count, int *eof, void *data) -+{ -+ struct ylist_head *item; -+ char *buf = page; -+ int step = offset; -+ int n = 0; -+ -+ /* Get proc_file_read() to step 'offset' by one on each sucessive call. -+ * We use 'offset' (*ppos) to indicate where we are in dev_list. -+ * This also assumes the user has posted a read buffer large -+ * enough to hold the complete output; but that's life in /proc. -+ */ -+ -+ *(int *)start = 1; -+ -+ /* Print header first */ -+ if (step == 0) -+ buf += sprintf(buf, "Multi-version YAFFS built:" __DATE__ " " __TIME__"\n"); -+ else if (step == 1) -+ buf += sprintf(buf,"\n"); -+ else { -+ step-=2; -+ -+ down(&yaffs_context_lock); -+ -+ /* Locate and print the Nth entry. Order N-squared but N is small. */ -+ ylist_for_each(item, &yaffs_context_list) { -+ struct yaffs_LinuxContext *dc = ylist_entry(item, struct yaffs_LinuxContext, contextList); -+ yaffs_dev_t *dev = dc->dev; -+ -+ if (n < (step & ~1)) { -+ n+=2; -+ continue; -+ } -+ if((step & 1)==0){ -+ buf += sprintf(buf, "\nDevice %d \"%s\"\n", n, dev->param.name); -+ buf = yaffs_dump_dev_part0(buf, dev); -+ } else -+ buf = yaffs_dump_dev_part1(buf, dev); -+ -+ break; -+ } -+ up(&yaffs_context_lock); -+ } -+ -+ return buf - page < count ? buf - page : count; -+} -+ -+static int yaffs_stats_proc_read(char *page, -+ char **start, -+ off_t offset, int count, int *eof, void *data) -+{ -+ struct ylist_head *item; -+ char *buf = page; -+ int n = 0; -+ -+ down(&yaffs_context_lock); -+ -+ /* Locate and print the Nth entry. Order N-squared but N is small. */ -+ ylist_for_each(item, &yaffs_context_list) { -+ struct yaffs_LinuxContext *dc = ylist_entry(item, struct yaffs_LinuxContext, contextList); -+ yaffs_dev_t *dev = dc->dev; -+ -+ int erasedChunks; -+ -+ erasedChunks = dev->n_erased_blocks * dev->param.chunks_per_block; -+ -+ buf += sprintf(buf,"%d, %d, %d, %u, %u, %u, %u\n", -+ n, dev->n_free_chunks, erasedChunks, -+ dev->bg_gcs, dev->oldest_dirty_gc_count, -+ dev->n_obj, dev->n_tnodes); -+ } -+ up(&yaffs_context_lock); -+ -+ -+ return buf - page < count ? buf - page : count; -+} -+ -+/** -+ * Set the verbosity of the warnings and error messages. -+ * -+ * Note that the names can only be a..z or _ with the current code. -+ */ -+ -+static struct { -+ char *mask_name; -+ unsigned mask_bitfield; -+} mask_flags[] = { -+ {"allocate", YAFFS_TRACE_ALLOCATE}, -+ {"always", YAFFS_TRACE_ALWAYS}, -+ {"background", YAFFS_TRACE_BACKGROUND}, -+ {"bad_blocks", YAFFS_TRACE_BAD_BLOCKS}, -+ {"buffers", YAFFS_TRACE_BUFFERS}, -+ {"bug", YAFFS_TRACE_BUG}, -+ {"checkpt", YAFFS_TRACE_CHECKPOINT}, -+ {"deletion", YAFFS_TRACE_DELETION}, -+ {"erase", YAFFS_TRACE_ERASE}, -+ {"error", YAFFS_TRACE_ERROR}, -+ {"gc_detail", YAFFS_TRACE_GC_DETAIL}, -+ {"gc", YAFFS_TRACE_GC}, -+ {"lock", YAFFS_TRACE_LOCK}, -+ {"mtd", YAFFS_TRACE_MTD}, -+ {"nandaccess", YAFFS_TRACE_NANDACCESS}, -+ {"os", YAFFS_TRACE_OS}, -+ {"scan_debug", YAFFS_TRACE_SCAN_DEBUG}, -+ {"scan", YAFFS_TRACE_SCAN}, -+ {"tracing", YAFFS_TRACE_TRACING}, -+ {"sync", YAFFS_TRACE_SYNC}, -+ {"write", YAFFS_TRACE_WRITE}, -+ -+ {"verify", YAFFS_TRACE_VERIFY}, -+ {"verify_nand", YAFFS_TRACE_VERIFY_NAND}, -+ {"verify_full", YAFFS_TRACE_VERIFY_FULL}, -+ {"verify_all", YAFFS_TRACE_VERIFY_ALL}, -+ -+ {"all", 0xffffffff}, -+ {"none", 0}, -+ {NULL, 0}, -+}; -+ -+#define MAX_MASK_NAME_LENGTH 40 -+static int yaffs_proc_write_trace_options(struct file *file, const char *buf, -+ unsigned long count, void *data) -+{ -+ unsigned rg = 0, mask_bitfield; -+ char *end; -+ char *mask_name; -+ const char *x; -+ char substring[MAX_MASK_NAME_LENGTH + 1]; -+ int i; -+ int done = 0; -+ int add, len = 0; -+ int pos = 0; -+ -+ rg = yaffs_trace_mask; -+ -+ while (!done && (pos < count)) { -+ done = 1; -+ while ((pos < count) && isspace(buf[pos])) -+ pos++; -+ -+ switch (buf[pos]) { -+ case '+': -+ case '-': -+ case '=': -+ add = buf[pos]; -+ pos++; -+ break; -+ -+ default: -+ add = ' '; -+ break; -+ } -+ mask_name = NULL; -+ -+ mask_bitfield = simple_strtoul(buf + pos, &end, 0); -+ -+ if (end > buf + pos) { -+ mask_name = "numeral"; -+ len = end - (buf + pos); -+ pos += len; -+ done = 0; -+ } else { -+ for (x = buf + pos, i = 0; -+ (*x == '_' || (*x >= 'a' && *x <= 'z')) && -+ i < MAX_MASK_NAME_LENGTH; x++, i++, pos++) -+ substring[i] = *x; -+ substring[i] = '\0'; -+ -+ for (i = 0; mask_flags[i].mask_name != NULL; i++) { -+ if (strcmp(substring, mask_flags[i].mask_name) == 0) { -+ mask_name = mask_flags[i].mask_name; -+ mask_bitfield = mask_flags[i].mask_bitfield; -+ done = 0; -+ break; -+ } -+ } -+ } -+ -+ if (mask_name != NULL) { -+ done = 0; -+ switch (add) { -+ case '-': -+ rg &= ~mask_bitfield; -+ break; -+ case '+': -+ rg |= mask_bitfield; -+ break; -+ case '=': -+ rg = mask_bitfield; -+ break; -+ default: -+ rg |= mask_bitfield; -+ break; -+ } -+ } -+ } -+ -+ yaffs_trace_mask = rg | YAFFS_TRACE_ALWAYS; -+ -+ printk(KERN_DEBUG "new trace = 0x%08X\n", yaffs_trace_mask); -+ -+ if (rg & YAFFS_TRACE_ALWAYS) { -+ for (i = 0; mask_flags[i].mask_name != NULL; i++) { -+ char flag; -+ flag = ((rg & mask_flags[i].mask_bitfield) == -+ mask_flags[i].mask_bitfield) ? '+' : '-'; -+ printk(KERN_DEBUG "%c%s\n", flag, mask_flags[i].mask_name); -+ } -+ } -+ -+ return count; -+} -+ -+ -+static int yaffs_proc_write(struct file *file, const char *buf, -+ unsigned long count, void *data) -+{ -+ return yaffs_proc_write_trace_options(file, buf, count, data); -+} -+ -+/* Stuff to handle installation of file systems */ -+struct file_system_to_install { -+ struct file_system_type *fst; -+ int installed; -+}; -+ -+static struct file_system_to_install fs_to_install[] = { -+ {&yaffs_fs_type, 0}, -+ {&yaffs2_fs_type, 0}, -+ {NULL, 0} -+}; -+ -+static int __init init_yaffs_fs(void) -+{ -+ int error = 0; -+ struct file_system_to_install *fsinst; -+ -+ T(YAFFS_TRACE_ALWAYS, -+ (TSTR("yaffs built " __DATE__ " " __TIME__ " Installing. \n"))); -+ -+#ifdef CONFIG_YAFFS_ALWAYS_CHECK_CHUNK_ERASED -+ T(YAFFS_TRACE_ALWAYS, -+ (TSTR(" \n\n\n\nYAFFS-WARNING CONFIG_YAFFS_ALWAYS_CHECK_CHUNK_ERASED selected.\n\n\n\n"))); -+#endif -+ -+ -+ -+ -+ init_MUTEX(&yaffs_context_lock); -+ -+ /* Install the proc_fs entries */ -+ my_proc_entry = create_proc_entry("yaffs", -+ S_IRUGO | S_IFREG, -+ YPROC_ROOT); -+ -+ if (my_proc_entry) { -+ my_proc_entry->write_proc = yaffs_proc_write; -+ my_proc_entry->read_proc = yaffs_proc_read; -+ my_proc_entry->data = NULL; -+ } else -+ return -ENOMEM; -+ -+ debug_proc_entry = create_proc_entry("yaffs_stats", -+ S_IRUGO | S_IFREG, -+ YPROC_ROOT); -+ -+ if (debug_proc_entry) { -+ debug_proc_entry->write_proc = NULL; -+ debug_proc_entry->read_proc = yaffs_stats_proc_read; -+ debug_proc_entry->data = NULL; -+ } else -+ return -ENOMEM; -+ -+ /* Now add the file system entries */ -+ -+ fsinst = fs_to_install; -+ -+ while (fsinst->fst && !error) { -+ error = register_filesystem(fsinst->fst); -+ if (!error) -+ fsinst->installed = 1; -+ fsinst++; -+ } -+ -+ /* Any errors? uninstall */ -+ if (error) { -+ fsinst = fs_to_install; -+ -+ while (fsinst->fst) { -+ if (fsinst->installed) { -+ unregister_filesystem(fsinst->fst); -+ fsinst->installed = 0; -+ } -+ fsinst++; -+ } -+ } -+ -+ return error; -+} -+ -+static void __exit exit_yaffs_fs(void) -+{ -+ -+ struct file_system_to_install *fsinst; -+ -+ T(YAFFS_TRACE_ALWAYS, -+ (TSTR("yaffs built " __DATE__ " " __TIME__ " removing. \n"))); -+ -+ remove_proc_entry("yaffs", YPROC_ROOT); -+ remove_proc_entry("yaffs_stats", YPROC_ROOT); -+ -+ fsinst = fs_to_install; -+ -+ while (fsinst->fst) { -+ if (fsinst->installed) { -+ unregister_filesystem(fsinst->fst); -+ fsinst->installed = 0; -+ } -+ fsinst++; -+ } -+} -+ -+module_init(init_yaffs_fs) -+module_exit(exit_yaffs_fs) -+ -+MODULE_DESCRIPTION("YAFFS2 - a NAND specific flash file system"); -+MODULE_AUTHOR("Charles Manning, Aleph One Ltd., 2002-2010"); -+MODULE_LICENSE("GPL"); ---- /dev/null -+++ b/fs/yaffs2/yaffs_yaffs1.c -@@ -0,0 +1,465 @@ -+/* -+ * YAFFS: Yet Another Flash File System. A NAND-flash specific file system. -+ * -+ * Copyright (C) 2002-2010 Aleph One Ltd. -+ * for Toby Churchill Ltd and Brightstar Engineering -+ * -+ * Created by Charles Manning -+ * -+ * This program is free software; you can redistribute it and/or modify -+ * it under the terms of the GNU General Public License version 2 as -+ * published by the Free Software Foundation. -+ */ -+#include "yaffs_yaffs1.h" -+#include "yportenv.h" -+#include "yaffs_trace.h" -+#include "yaffs_bitmap.h" -+#include "yaffs_getblockinfo.h" -+#include "yaffs_nand.h" -+ -+ -+int yaffs1_scan(yaffs_dev_t *dev) -+{ -+ yaffs_ext_tags tags; -+ int blk; -+ int blockIterator; -+ int startIterator; -+ int endIterator; -+ int result; -+ -+ int chunk; -+ int c; -+ int deleted; -+ yaffs_block_state_t state; -+ yaffs_obj_t *hard_list = NULL; -+ yaffs_block_info_t *bi; -+ __u32 seq_number; -+ yaffs_obj_header *oh; -+ yaffs_obj_t *in; -+ yaffs_obj_t *parent; -+ -+ int alloc_failed = 0; -+ -+ struct yaffs_shadow_fixer_s *shadowFixerList = NULL; -+ -+ -+ __u8 *chunkData; -+ -+ -+ -+ T(YAFFS_TRACE_SCAN, -+ (TSTR("yaffs1_scan starts intstartblk %d intendblk %d..." TENDSTR), -+ dev->internal_start_block, dev->internal_end_block)); -+ -+ chunkData = yaffs_get_temp_buffer(dev, __LINE__); -+ -+ dev->seq_number = YAFFS_LOWEST_SEQUENCE_NUMBER; -+ -+ /* Scan all the blocks to determine their state */ -+ bi = dev->block_info; -+ for (blk = dev->internal_start_block; blk <= dev->internal_end_block; blk++) { -+ yaffs_clear_chunk_bits(dev, blk); -+ bi->pages_in_use = 0; -+ bi->soft_del_pages = 0; -+ -+ yaffs_query_init_block_state(dev, blk, &state, &seq_number); -+ -+ bi->block_state = state; -+ bi->seq_number = seq_number; -+ -+ if (bi->seq_number == YAFFS_SEQUENCE_BAD_BLOCK) -+ bi->block_state = state = YAFFS_BLOCK_STATE_DEAD; -+ -+ T(YAFFS_TRACE_SCAN_DEBUG, -+ (TSTR("Block scanning block %d state %d seq %d" TENDSTR), blk, -+ state, seq_number)); -+ -+ if (state == YAFFS_BLOCK_STATE_DEAD) { -+ T(YAFFS_TRACE_BAD_BLOCKS, -+ (TSTR("block %d is bad" TENDSTR), blk)); -+ } else if (state == YAFFS_BLOCK_STATE_EMPTY) { -+ T(YAFFS_TRACE_SCAN_DEBUG, -+ (TSTR("Block empty " TENDSTR))); -+ dev->n_erased_blocks++; -+ dev->n_free_chunks += dev->param.chunks_per_block; -+ } -+ bi++; -+ } -+ -+ startIterator = dev->internal_start_block; -+ endIterator = dev->internal_end_block; -+ -+ /* For each block.... */ -+ for (blockIterator = startIterator; !alloc_failed && blockIterator <= endIterator; -+ blockIterator++) { -+ -+ YYIELD(); -+ -+ YYIELD(); -+ -+ blk = blockIterator; -+ -+ bi = yaffs_get_block_info(dev, blk); -+ state = bi->block_state; -+ -+ deleted = 0; -+ -+ /* For each chunk in each block that needs scanning....*/ -+ for (c = 0; !alloc_failed && c < dev->param.chunks_per_block && -+ state == YAFFS_BLOCK_STATE_NEEDS_SCANNING; c++) { -+ /* Read the tags and decide what to do */ -+ chunk = blk * dev->param.chunks_per_block + c; -+ -+ result = yaffs_rd_chunk_tags_nand(dev, chunk, NULL, -+ &tags); -+ -+ /* Let's have a good look at this chunk... */ -+ -+ if (tags.ecc_result == YAFFS_ECC_RESULT_UNFIXED || tags.is_deleted) { -+ /* YAFFS1 only... -+ * A deleted chunk -+ */ -+ deleted++; -+ dev->n_free_chunks++; -+ /*T((" %d %d deleted\n",blk,c)); */ -+ } else if (!tags.chunk_used) { -+ /* An unassigned chunk in the block -+ * This means that either the block is empty or -+ * this is the one being allocated from -+ */ -+ -+ if (c == 0) { -+ /* We're looking at the first chunk in the block so the block is unused */ -+ state = YAFFS_BLOCK_STATE_EMPTY; -+ dev->n_erased_blocks++; -+ } else { -+ /* this is the block being allocated from */ -+ T(YAFFS_TRACE_SCAN, -+ (TSTR -+ (" Allocating from %d %d" TENDSTR), -+ blk, c)); -+ state = YAFFS_BLOCK_STATE_ALLOCATING; -+ dev->alloc_block = blk; -+ dev->alloc_page = c; -+ dev->alloc_block_finder = blk; -+ /* Set block finder here to encourage the allocator to go forth from here. */ -+ -+ } -+ -+ dev->n_free_chunks += (dev->param.chunks_per_block - c); -+ } else if (tags.chunk_id > 0) { -+ /* chunk_id > 0 so it is a data chunk... */ -+ unsigned int endpos; -+ -+ yaffs_set_chunk_bit(dev, blk, c); -+ bi->pages_in_use++; -+ -+ in = yaffs_find_or_create_by_number(dev, -+ tags. -+ obj_id, -+ YAFFS_OBJECT_TYPE_FILE); -+ /* PutChunkIntoFile checks for a clash (two data chunks with -+ * the same chunk_id). -+ */ -+ -+ if (!in) -+ alloc_failed = 1; -+ -+ if (in) { -+ if (!yaffs_put_chunk_in_file(in, tags.chunk_id, chunk, 1)) -+ alloc_failed = 1; -+ } -+ -+ endpos = -+ (tags.chunk_id - 1) * dev->data_bytes_per_chunk + -+ tags.n_bytes; -+ if (in && -+ in->variant_type == YAFFS_OBJECT_TYPE_FILE -+ && in->variant.file_variant.scanned_size < -+ endpos) { -+ in->variant.file_variant. -+ scanned_size = endpos; -+ if (!dev->param.use_header_file_size) { -+ in->variant.file_variant. -+ file_size = -+ in->variant.file_variant. -+ scanned_size; -+ } -+ -+ } -+ /* T((" %d %d data %d %d\n",blk,c,tags.obj_id,tags.chunk_id)); */ -+ } else { -+ /* chunk_id == 0, so it is an ObjectHeader. -+ * Thus, we read in the object header and make the object -+ */ -+ yaffs_set_chunk_bit(dev, blk, c); -+ bi->pages_in_use++; -+ -+ result = yaffs_rd_chunk_tags_nand(dev, chunk, -+ chunkData, -+ NULL); -+ -+ oh = (yaffs_obj_header *) chunkData; -+ -+ in = yaffs_find_by_number(dev, -+ tags.obj_id); -+ if (in && in->variant_type != oh->type) { -+ /* This should not happen, but somehow -+ * Wev'e ended up with an obj_id that has been reused but not yet -+ * deleted, and worse still it has changed type. Delete the old object. -+ */ -+ -+ yaffs_del_obj(in); -+ -+ in = 0; -+ } -+ -+ in = yaffs_find_or_create_by_number(dev, -+ tags. -+ obj_id, -+ oh->type); -+ -+ if (!in) -+ alloc_failed = 1; -+ -+ if (in && oh->shadows_obj > 0) { -+ -+ struct yaffs_shadow_fixer_s *fixer; -+ fixer = YMALLOC(sizeof(struct yaffs_shadow_fixer_s)); -+ if (fixer) { -+ fixer->next = shadowFixerList; -+ shadowFixerList = fixer; -+ fixer->obj_id = tags.obj_id; -+ fixer->shadowed_id = oh->shadows_obj; -+ T(YAFFS_TRACE_SCAN, -+ (TSTR -+ (" Shadow fixer: %d shadows %d" TENDSTR), -+ fixer->obj_id, fixer->shadowed_id)); -+ -+ } -+ -+ } -+ -+ if (in && in->valid) { -+ /* We have already filled this one. We have a duplicate and need to resolve it. */ -+ -+ unsigned existingSerial = in->serial; -+ unsigned newSerial = tags.serial_number; -+ -+ if (((existingSerial + 1) & 3) == newSerial) { -+ /* Use new one - destroy the exisiting one */ -+ yaffs_chunk_del(dev, -+ in->hdr_chunk, -+ 1, __LINE__); -+ in->valid = 0; -+ } else { -+ /* Use existing - destroy this one. */ -+ yaffs_chunk_del(dev, chunk, 1, -+ __LINE__); -+ } -+ } -+ -+ if (in && !in->valid && -+ (tags.obj_id == YAFFS_OBJECTID_ROOT || -+ tags.obj_id == YAFFS_OBJECTID_LOSTNFOUND)) { -+ /* We only load some info, don't fiddle with directory structure */ -+ in->valid = 1; -+ in->variant_type = oh->type; -+ -+ in->yst_mode = oh->yst_mode; -+#ifdef CONFIG_YAFFS_WINCE -+ in->win_atime[0] = oh->win_atime[0]; -+ in->win_ctime[0] = oh->win_ctime[0]; -+ in->win_mtime[0] = oh->win_mtime[0]; -+ in->win_atime[1] = oh->win_atime[1]; -+ in->win_ctime[1] = oh->win_ctime[1]; -+ in->win_mtime[1] = oh->win_mtime[1]; -+#else -+ in->yst_uid = oh->yst_uid; -+ in->yst_gid = oh->yst_gid; -+ in->yst_atime = oh->yst_atime; -+ in->yst_mtime = oh->yst_mtime; -+ in->yst_ctime = oh->yst_ctime; -+ in->yst_rdev = oh->yst_rdev; -+#endif -+ in->hdr_chunk = chunk; -+ in->serial = tags.serial_number; -+ -+ } else if (in && !in->valid) { -+ /* we need to load this info */ -+ -+ in->valid = 1; -+ in->variant_type = oh->type; -+ -+ in->yst_mode = oh->yst_mode; -+#ifdef CONFIG_YAFFS_WINCE -+ in->win_atime[0] = oh->win_atime[0]; -+ in->win_ctime[0] = oh->win_ctime[0]; -+ in->win_mtime[0] = oh->win_mtime[0]; -+ in->win_atime[1] = oh->win_atime[1]; -+ in->win_ctime[1] = oh->win_ctime[1]; -+ in->win_mtime[1] = oh->win_mtime[1]; -+#else -+ in->yst_uid = oh->yst_uid; -+ in->yst_gid = oh->yst_gid; -+ in->yst_atime = oh->yst_atime; -+ in->yst_mtime = oh->yst_mtime; -+ in->yst_ctime = oh->yst_ctime; -+ in->yst_rdev = oh->yst_rdev; -+#endif -+ in->hdr_chunk = chunk; -+ in->serial = tags.serial_number; -+ -+ yaffs_set_obj_name_from_oh(in, oh); -+ in->dirty = 0; -+ -+ /* directory stuff... -+ * hook up to parent -+ */ -+ -+ parent = -+ yaffs_find_or_create_by_number -+ (dev, oh->parent_obj_id, -+ YAFFS_OBJECT_TYPE_DIRECTORY); -+ if (!parent) -+ alloc_failed = 1; -+ if (parent && parent->variant_type == -+ YAFFS_OBJECT_TYPE_UNKNOWN) { -+ /* Set up as a directory */ -+ parent->variant_type = -+ YAFFS_OBJECT_TYPE_DIRECTORY; -+ YINIT_LIST_HEAD(&parent->variant. -+ dir_variant. -+ children); -+ } else if (!parent || parent->variant_type != -+ YAFFS_OBJECT_TYPE_DIRECTORY) { -+ /* Hoosterman, another problem.... -+ * We're trying to use a non-directory as a directory -+ */ -+ -+ T(YAFFS_TRACE_ERROR, -+ (TSTR -+ ("yaffs tragedy: attempting to use non-directory as a directory in scan. Put in lost+found." -+ TENDSTR))); -+ parent = dev->lost_n_found; -+ } -+ -+ yaffs_add_obj_to_dir(parent, in); -+ -+ if (0 && (parent == dev->del_dir || -+ parent == dev->unlinked_dir)) { -+ in->deleted = 1; /* If it is unlinked at start up then it wants deleting */ -+ dev->n_deleted_files++; -+ } -+ /* Note re hardlinks. -+ * Since we might scan a hardlink before its equivalent object is scanned -+ * we put them all in a list. -+ * After scanning is complete, we should have all the objects, so we run through this -+ * list and fix up all the chains. -+ */ -+ -+ switch (in->variant_type) { -+ case YAFFS_OBJECT_TYPE_UNKNOWN: -+ /* Todo got a problem */ -+ break; -+ case YAFFS_OBJECT_TYPE_FILE: -+ if (dev->param.use_header_file_size) -+ -+ in->variant.file_variant. -+ file_size = -+ oh->file_size; -+ -+ break; -+ case YAFFS_OBJECT_TYPE_HARDLINK: -+ in->variant.hardlink_variant. -+ equiv_id = -+ oh->equiv_id; -+ in->hard_links.next = -+ (struct ylist_head *) -+ hard_list; -+ hard_list = in; -+ break; -+ case YAFFS_OBJECT_TYPE_DIRECTORY: -+ /* Do nothing */ -+ break; -+ case YAFFS_OBJECT_TYPE_SPECIAL: -+ /* Do nothing */ -+ break; -+ case YAFFS_OBJECT_TYPE_SYMLINK: -+ in->variant.symlink_variant.alias = -+ yaffs_clone_str(oh->alias); -+ if (!in->variant.symlink_variant.alias) -+ alloc_failed = 1; -+ break; -+ } -+ -+ } -+ } -+ } -+ -+ if (state == YAFFS_BLOCK_STATE_NEEDS_SCANNING) { -+ /* If we got this far while scanning, then the block is fully allocated.*/ -+ state = YAFFS_BLOCK_STATE_FULL; -+ } -+ -+ if (state == YAFFS_BLOCK_STATE_ALLOCATING) { -+ /* If the block was partially allocated then treat it as fully allocated.*/ -+ state = YAFFS_BLOCK_STATE_FULL; -+ dev->alloc_block = -1; -+ } -+ -+ bi->block_state = state; -+ -+ /* Now let's see if it was dirty */ -+ if (bi->pages_in_use == 0 && -+ !bi->has_shrink_hdr && -+ bi->block_state == YAFFS_BLOCK_STATE_FULL) { -+ yaffs_block_became_dirty(dev, blk); -+ } -+ -+ } -+ -+ -+ /* Ok, we've done all the scanning. -+ * Fix up the hard link chains. -+ * We should now have scanned all the objects, now it's time to add these -+ * hardlinks. -+ */ -+ -+ yaffs_link_fixup(dev, hard_list); -+ -+ /* Fix up any shadowed objects */ -+ { -+ struct yaffs_shadow_fixer_s *fixer; -+ yaffs_obj_t *obj; -+ -+ while (shadowFixerList) { -+ fixer = shadowFixerList; -+ shadowFixerList = fixer->next; -+ /* Complete the rename transaction by deleting the shadowed object -+ * then setting the object header to unshadowed. -+ */ -+ obj = yaffs_find_by_number(dev, fixer->shadowed_id); -+ if (obj) -+ yaffs_del_obj(obj); -+ -+ obj = yaffs_find_by_number(dev, fixer->obj_id); -+ -+ if (obj) -+ yaffs_update_oh(obj, NULL, 1, 0, 0, NULL); -+ -+ YFREE(fixer); -+ } -+ } -+ -+ yaffs_release_temp_buffer(dev, chunkData, __LINE__); -+ -+ if (alloc_failed) -+ return YAFFS_FAIL; -+ -+ T(YAFFS_TRACE_SCAN, (TSTR("yaffs1_scan ends" TENDSTR))); -+ -+ -+ return YAFFS_OK; -+} -+ ---- /dev/null -+++ b/fs/yaffs2/yaffs_yaffs1.h -@@ -0,0 +1,22 @@ -+/* -+ * YAFFS: Yet another Flash File System . A NAND-flash specific file system. -+ * -+ * Copyright (C) 2002-2010 Aleph One Ltd. -+ * for Toby Churchill Ltd and Brightstar Engineering -+ * -+ * Created by Charles Manning -+ * -+ * This program is free software; you can redistribute it and/or modify -+ * it under the terms of the GNU Lesser General Public License version 2.1 as -+ * published by the Free Software Foundation. -+ * -+ * Note: Only YAFFS headers are LGPL, YAFFS C code is covered by GPL. -+ */ -+ -+#ifndef __YAFFS_YAFFS1_H__ -+#define __YAFFS_YAFFS1_H__ -+ -+#include "yaffs_guts.h" -+int yaffs1_scan(yaffs_dev_t *dev); -+ -+#endif ---- /dev/null -+++ b/fs/yaffs2/yaffs_yaffs2.c -@@ -0,0 +1,1540 @@ -+/* -+ * YAFFS: Yet Another Flash File System. A NAND-flash specific file system. -+ * -+ * Copyright (C) 2002-2010 Aleph One Ltd. -+ * for Toby Churchill Ltd and Brightstar Engineering -+ * -+ * Created by Charles Manning -+ * -+ * This program is free software; you can redistribute it and/or modify -+ * it under the terms of the GNU General Public License version 2 as -+ * published by the Free Software Foundation. -+ */ -+ -+ -+#include "yaffs_guts.h" -+#include "yaffs_trace.h" -+#include "yaffs_yaffs2.h" -+#include "yaffs_checkptrw.h" -+#include "yaffs_bitmap.h" -+#include "yaffs_qsort.h" -+#include "yaffs_nand.h" -+#include "yaffs_getblockinfo.h" -+#include "yaffs_verify.h" -+ -+/* -+ * Checkpoints are really no benefit on very small partitions. -+ * -+ * To save space on small partitions don't bother with checkpoints unless -+ * the partition is at least this big. -+ */ -+#define YAFFS_CHECKPOINT_MIN_BLOCKS 60 -+ -+#define YAFFS_SMALL_HOLE_THRESHOLD 4 -+ -+ -+/* -+ * Oldest Dirty Sequence Number handling. -+ */ -+ -+/* yaffs_calc_oldest_dirty_seq() -+ * yaffs2_find_oldest_dirty_seq() -+ * Calculate the oldest dirty sequence number if we don't know it. -+ */ -+void yaffs_calc_oldest_dirty_seq(yaffs_dev_t *dev) -+{ -+ int i; -+ unsigned seq; -+ unsigned block_no = 0; -+ yaffs_block_info_t *b; -+ -+ if(!dev->param.is_yaffs2) -+ return; -+ -+ /* Find the oldest dirty sequence number. */ -+ seq = dev->seq_number + 1; -+ b = dev->block_info; -+ for (i = dev->internal_start_block; i <= dev->internal_end_block; i++) { -+ if (b->block_state == YAFFS_BLOCK_STATE_FULL && -+ (b->pages_in_use - b->soft_del_pages) < dev->param.chunks_per_block && -+ b->seq_number < seq) { -+ seq = b->seq_number; -+ block_no = i; -+ } -+ b++; -+ } -+ -+ if(block_no){ -+ dev->oldest_dirty_seq = seq; -+ dev->oldest_dirty_block = block_no; -+ } -+ -+} -+ -+ -+void yaffs2_find_oldest_dirty_seq(yaffs_dev_t *dev) -+{ -+ if(!dev->param.is_yaffs2) -+ return; -+ -+ if(!dev->oldest_dirty_seq) -+ yaffs_calc_oldest_dirty_seq(dev); -+} -+ -+/* -+ * yaffs_clear_oldest_dirty_seq() -+ * Called when a block is erased or marked bad. (ie. when its seq_number -+ * becomes invalid). If the value matches the oldest then we clear -+ * dev->oldest_dirty_seq to force its recomputation. -+ */ -+void yaffs2_clear_oldest_dirty_seq(yaffs_dev_t *dev, yaffs_block_info_t *bi) -+{ -+ -+ if(!dev->param.is_yaffs2) -+ return; -+ -+ if(!bi || bi->seq_number == dev->oldest_dirty_seq){ -+ dev->oldest_dirty_seq = 0; -+ dev->oldest_dirty_block = 0; -+ } -+} -+ -+/* -+ * yaffs2_update_oldest_dirty_seq() -+ * Update the oldest dirty sequence number whenever we dirty a block. -+ * Only do this if the oldest_dirty_seq is actually being tracked. -+ */ -+void yaffs2_update_oldest_dirty_seq(yaffs_dev_t *dev, unsigned block_no, yaffs_block_info_t *bi) -+{ -+ if(!dev->param.is_yaffs2) -+ return; -+ -+ if(dev->oldest_dirty_seq){ -+ if(dev->oldest_dirty_seq > bi->seq_number){ -+ dev->oldest_dirty_seq = bi->seq_number; -+ dev->oldest_dirty_block = block_no; -+ } -+ } -+} -+ -+int yaffs_block_ok_for_gc(yaffs_dev_t *dev, -+ yaffs_block_info_t *bi) -+{ -+ -+ if (!dev->param.is_yaffs2) -+ return 1; /* disqualification only applies to yaffs2. */ -+ -+ if (!bi->has_shrink_hdr) -+ return 1; /* can gc */ -+ -+ yaffs2_find_oldest_dirty_seq(dev); -+ -+ /* Can't do gc of this block if there are any blocks older than this one that have -+ * discarded pages. -+ */ -+ return (bi->seq_number <= dev->oldest_dirty_seq); -+} -+ -+/* -+ * yaffs2_find_refresh_block() -+ * periodically finds the oldest full block by sequence number for refreshing. -+ * Only for yaffs2. -+ */ -+__u32 yaffs2_find_refresh_block(yaffs_dev_t *dev) -+{ -+ __u32 b ; -+ -+ __u32 oldest = 0; -+ __u32 oldestSequence = 0; -+ -+ yaffs_block_info_t *bi; -+ -+ if(!dev->param.is_yaffs2) -+ return oldest; -+ -+ /* -+ * If refresh period < 10 then refreshing is disabled. -+ */ -+ if(dev->param.refresh_period < 10) -+ return oldest; -+ -+ /* -+ * Fix broken values. -+ */ -+ if(dev->refresh_skip > dev->param.refresh_period) -+ dev->refresh_skip = dev->param.refresh_period; -+ -+ if(dev->refresh_skip > 0) -+ return oldest; -+ -+ /* -+ * Refresh skip is now zero. -+ * We'll do a refresh this time around.... -+ * Update the refresh skip and find the oldest block. -+ */ -+ dev->refresh_skip = dev->param.refresh_period; -+ dev->refresh_count++; -+ bi = dev->block_info; -+ for (b = dev->internal_start_block; b <=dev->internal_end_block; b++){ -+ -+ if (bi->block_state == YAFFS_BLOCK_STATE_FULL){ -+ -+ if(oldest < 1 || -+ bi->seq_number < oldestSequence){ -+ oldest = b; -+ oldestSequence = bi->seq_number; -+ } -+ } -+ bi++; -+ } -+ -+ if (oldest > 0) { -+ T(YAFFS_TRACE_GC, -+ (TSTR("GC refresh count %d selected block %d with seq_number %d" TENDSTR), -+ dev->refresh_count, oldest, oldestSequence)); -+ } -+ -+ return oldest; -+} -+ -+int yaffs2_checkpt_required(yaffs_dev_t *dev) -+{ -+ int nblocks; -+ -+ if(!dev->param.is_yaffs2) -+ return 0; -+ -+ nblocks = dev->internal_end_block - dev->internal_start_block + 1 ; -+ -+ return !dev->param.skip_checkpt_wr && -+ !dev->read_only && -+ (nblocks >= YAFFS_CHECKPOINT_MIN_BLOCKS); -+} -+ -+int yaffs_calc_checkpt_blocks_required(yaffs_dev_t *dev) -+{ -+ int retval; -+ -+ if(!dev->param.is_yaffs2) -+ return 0; -+ -+ if (!dev->checkpoint_blocks_required && -+ yaffs2_checkpt_required(dev)){ -+ /* Not a valid value so recalculate */ -+ int n_bytes = 0; -+ int nBlocks; -+ int devBlocks = (dev->param.end_block - dev->param.start_block + 1); -+ -+ n_bytes += sizeof(yaffs_checkpt_validty_t); -+ n_bytes += sizeof(yaffs_checkpt_dev_t); -+ n_bytes += devBlocks * sizeof(yaffs_block_info_t); -+ n_bytes += devBlocks * dev->chunk_bit_stride; -+ n_bytes += (sizeof(yaffs_checkpt_obj_t) + sizeof(__u32)) * (dev->n_obj); -+ n_bytes += (dev->tnode_size + sizeof(__u32)) * (dev->n_tnodes); -+ n_bytes += sizeof(yaffs_checkpt_validty_t); -+ n_bytes += sizeof(__u32); /* checksum*/ -+ -+ /* Round up and add 2 blocks to allow for some bad blocks, so add 3 */ -+ -+ nBlocks = (n_bytes/(dev->data_bytes_per_chunk * dev->param.chunks_per_block)) + 3; -+ -+ dev->checkpoint_blocks_required = nBlocks; -+ } -+ -+ retval = dev->checkpoint_blocks_required - dev->blocks_in_checkpt; -+ if(retval < 0) -+ retval = 0; -+ return retval; -+} -+ -+/*--------------------- Checkpointing --------------------*/ -+ -+ -+static int yaffs2_wr_checkpt_validity_marker(yaffs_dev_t *dev, int head) -+{ -+ yaffs_checkpt_validty_t cp; -+ -+ memset(&cp, 0, sizeof(cp)); -+ -+ cp.struct_type = sizeof(cp); -+ cp.magic = YAFFS_MAGIC; -+ cp.version = YAFFS_CHECKPOINT_VERSION; -+ cp.head = (head) ? 1 : 0; -+ -+ return (yaffs2_checkpt_wr(dev, &cp, sizeof(cp)) == sizeof(cp)) ? -+ 1 : 0; -+} -+ -+static int yaffs2_rd_checkpt_validty_marker(yaffs_dev_t *dev, int head) -+{ -+ yaffs_checkpt_validty_t cp; -+ int ok; -+ -+ ok = (yaffs2_checkpt_rd(dev, &cp, sizeof(cp)) == sizeof(cp)); -+ -+ if (ok) -+ ok = (cp.struct_type == sizeof(cp)) && -+ (cp.magic == YAFFS_MAGIC) && -+ (cp.version == YAFFS_CHECKPOINT_VERSION) && -+ (cp.head == ((head) ? 1 : 0)); -+ return ok ? 1 : 0; -+} -+ -+static void yaffs2_dev_to_checkpt_dev(yaffs_checkpt_dev_t *cp, -+ yaffs_dev_t *dev) -+{ -+ cp->n_erased_blocks = dev->n_erased_blocks; -+ cp->alloc_block = dev->alloc_block; -+ cp->alloc_page = dev->alloc_page; -+ cp->n_free_chunks = dev->n_free_chunks; -+ -+ cp->n_deleted_files = dev->n_deleted_files; -+ cp->n_unlinked_files = dev->n_unlinked_files; -+ cp->n_bg_deletions = dev->n_bg_deletions; -+ cp->seq_number = dev->seq_number; -+ -+} -+ -+static void yaffs_checkpt_dev_to_dev(yaffs_dev_t *dev, -+ yaffs_checkpt_dev_t *cp) -+{ -+ dev->n_erased_blocks = cp->n_erased_blocks; -+ dev->alloc_block = cp->alloc_block; -+ dev->alloc_page = cp->alloc_page; -+ dev->n_free_chunks = cp->n_free_chunks; -+ -+ dev->n_deleted_files = cp->n_deleted_files; -+ dev->n_unlinked_files = cp->n_unlinked_files; -+ dev->n_bg_deletions = cp->n_bg_deletions; -+ dev->seq_number = cp->seq_number; -+} -+ -+ -+static int yaffs2_wr_checkpt_dev(yaffs_dev_t *dev) -+{ -+ yaffs_checkpt_dev_t cp; -+ __u32 n_bytes; -+ __u32 nBlocks = (dev->internal_end_block - dev->internal_start_block + 1); -+ -+ int ok; -+ -+ /* Write device runtime values*/ -+ yaffs2_dev_to_checkpt_dev(&cp, dev); -+ cp.struct_type = sizeof(cp); -+ -+ ok = (yaffs2_checkpt_wr(dev, &cp, sizeof(cp)) == sizeof(cp)); -+ -+ /* Write block info */ -+ if (ok) { -+ n_bytes = nBlocks * sizeof(yaffs_block_info_t); -+ ok = (yaffs2_checkpt_wr(dev, dev->block_info, n_bytes) == n_bytes); -+ } -+ -+ /* Write chunk bits */ -+ if (ok) { -+ n_bytes = nBlocks * dev->chunk_bit_stride; -+ ok = (yaffs2_checkpt_wr(dev, dev->chunk_bits, n_bytes) == n_bytes); -+ } -+ return ok ? 1 : 0; -+ -+} -+ -+static int yaffs2_rd_checkpt_dev(yaffs_dev_t *dev) -+{ -+ yaffs_checkpt_dev_t cp; -+ __u32 n_bytes; -+ __u32 nBlocks = (dev->internal_end_block - dev->internal_start_block + 1); -+ -+ int ok; -+ -+ ok = (yaffs2_checkpt_rd(dev, &cp, sizeof(cp)) == sizeof(cp)); -+ if (!ok) -+ return 0; -+ -+ if (cp.struct_type != sizeof(cp)) -+ return 0; -+ -+ -+ yaffs_checkpt_dev_to_dev(dev, &cp); -+ -+ n_bytes = nBlocks * sizeof(yaffs_block_info_t); -+ -+ ok = (yaffs2_checkpt_rd(dev, dev->block_info, n_bytes) == n_bytes); -+ -+ if (!ok) -+ return 0; -+ n_bytes = nBlocks * dev->chunk_bit_stride; -+ -+ ok = (yaffs2_checkpt_rd(dev, dev->chunk_bits, n_bytes) == n_bytes); -+ -+ return ok ? 1 : 0; -+} -+ -+static void yaffs2_obj_checkpt_obj(yaffs_checkpt_obj_t *cp, -+ yaffs_obj_t *obj) -+{ -+ -+ cp->obj_id = obj->obj_id; -+ cp->parent_id = (obj->parent) ? obj->parent->obj_id : 0; -+ cp->hdr_chunk = obj->hdr_chunk; -+ cp->variant_type = obj->variant_type; -+ cp->deleted = obj->deleted; -+ cp->soft_del = obj->soft_del; -+ cp->unlinked = obj->unlinked; -+ cp->fake = obj->fake; -+ cp->rename_allowed = obj->rename_allowed; -+ cp->unlink_allowed = obj->unlink_allowed; -+ cp->serial = obj->serial; -+ cp->n_data_chunks = obj->n_data_chunks; -+ -+ if (obj->variant_type == YAFFS_OBJECT_TYPE_FILE) -+ cp->size_or_equiv_obj = obj->variant.file_variant.file_size; -+ else if (obj->variant_type == YAFFS_OBJECT_TYPE_HARDLINK) -+ cp->size_or_equiv_obj = obj->variant.hardlink_variant.equiv_id; -+} -+ -+static int taffs2_checkpt_obj_to_obj(yaffs_obj_t *obj, yaffs_checkpt_obj_t *cp) -+{ -+ -+ yaffs_obj_t *parent; -+ -+ if (obj->variant_type != cp->variant_type) { -+ T(YAFFS_TRACE_ERROR, (TSTR("Checkpoint read object %d type %d " -+ TCONT("chunk %d does not match existing object type %d") -+ TENDSTR), cp->obj_id, cp->variant_type, cp->hdr_chunk, -+ obj->variant_type)); -+ return 0; -+ } -+ -+ obj->obj_id = cp->obj_id; -+ -+ if (cp->parent_id) -+ parent = yaffs_find_or_create_by_number( -+ obj->my_dev, -+ cp->parent_id, -+ YAFFS_OBJECT_TYPE_DIRECTORY); -+ else -+ parent = NULL; -+ -+ if (parent) { -+ if (parent->variant_type != YAFFS_OBJECT_TYPE_DIRECTORY) { -+ T(YAFFS_TRACE_ALWAYS, (TSTR("Checkpoint read object %d parent %d type %d" -+ TCONT(" chunk %d Parent type, %d, not directory") -+ TENDSTR), -+ cp->obj_id, cp->parent_id, cp->variant_type, -+ cp->hdr_chunk, parent->variant_type)); -+ return 0; -+ } -+ yaffs_add_obj_to_dir(parent, obj); -+ } -+ -+ obj->hdr_chunk = cp->hdr_chunk; -+ obj->variant_type = cp->variant_type; -+ obj->deleted = cp->deleted; -+ obj->soft_del = cp->soft_del; -+ obj->unlinked = cp->unlinked; -+ obj->fake = cp->fake; -+ obj->rename_allowed = cp->rename_allowed; -+ obj->unlink_allowed = cp->unlink_allowed; -+ obj->serial = cp->serial; -+ obj->n_data_chunks = cp->n_data_chunks; -+ -+ if (obj->variant_type == YAFFS_OBJECT_TYPE_FILE) -+ obj->variant.file_variant.file_size = cp->size_or_equiv_obj; -+ else if (obj->variant_type == YAFFS_OBJECT_TYPE_HARDLINK) -+ obj->variant.hardlink_variant.equiv_id = cp->size_or_equiv_obj; -+ -+ if (obj->hdr_chunk > 0) -+ obj->lazy_loaded = 1; -+ return 1; -+} -+ -+ -+ -+static int yaffs2_checkpt_tnode_worker(yaffs_obj_t *in, yaffs_tnode_t *tn, -+ __u32 level, int chunk_offset) -+{ -+ int i; -+ yaffs_dev_t *dev = in->my_dev; -+ int ok = 1; -+ -+ if (tn) { -+ if (level > 0) { -+ -+ for (i = 0; i < YAFFS_NTNODES_INTERNAL && ok; i++) { -+ if (tn->internal[i]) { -+ ok = yaffs2_checkpt_tnode_worker(in, -+ tn->internal[i], -+ level - 1, -+ (chunk_offset<tnode_size) == dev->tnode_size); -+ } -+ } -+ -+ return ok; -+ -+} -+ -+static int yaffs2_wr_checkpt_tnodes(yaffs_obj_t *obj) -+{ -+ __u32 endMarker = ~0; -+ int ok = 1; -+ -+ if (obj->variant_type == YAFFS_OBJECT_TYPE_FILE) { -+ ok = yaffs2_checkpt_tnode_worker(obj, -+ obj->variant.file_variant.top, -+ obj->variant.file_variant.top_level, -+ 0); -+ if (ok) -+ ok = (yaffs2_checkpt_wr(obj->my_dev, &endMarker, sizeof(endMarker)) == -+ sizeof(endMarker)); -+ } -+ -+ return ok ? 1 : 0; -+} -+ -+static int yaffs2_rd_checkpt_tnodes(yaffs_obj_t *obj) -+{ -+ __u32 baseChunk; -+ int ok = 1; -+ yaffs_dev_t *dev = obj->my_dev; -+ yaffs_file_s *fileStructPtr = &obj->variant.file_variant; -+ yaffs_tnode_t *tn; -+ int nread = 0; -+ -+ ok = (yaffs2_checkpt_rd(dev, &baseChunk, sizeof(baseChunk)) == sizeof(baseChunk)); -+ -+ while (ok && (~baseChunk)) { -+ nread++; -+ /* Read level 0 tnode */ -+ -+ -+ tn = yaffs_get_tnode(dev); -+ if (tn){ -+ ok = (yaffs2_checkpt_rd(dev, tn, dev->tnode_size) == dev->tnode_size); -+ } else -+ ok = 0; -+ -+ if (tn && ok) -+ ok = yaffs_add_find_tnode_0(dev, -+ fileStructPtr, -+ baseChunk, -+ tn) ? 1 : 0; -+ -+ if (ok) -+ ok = (yaffs2_checkpt_rd(dev, &baseChunk, sizeof(baseChunk)) == sizeof(baseChunk)); -+ -+ } -+ -+ T(YAFFS_TRACE_CHECKPOINT, ( -+ TSTR("Checkpoint read tnodes %d records, last %d. ok %d" TENDSTR), -+ nread, baseChunk, ok)); -+ -+ return ok ? 1 : 0; -+} -+ -+ -+static int yaffs2_wr_checkpt_objs(yaffs_dev_t *dev) -+{ -+ yaffs_obj_t *obj; -+ yaffs_checkpt_obj_t cp; -+ int i; -+ int ok = 1; -+ struct ylist_head *lh; -+ -+ -+ /* Iterate through the objects in each hash entry, -+ * dumping them to the checkpointing stream. -+ */ -+ -+ for (i = 0; ok && i < YAFFS_NOBJECT_BUCKETS; i++) { -+ ylist_for_each(lh, &dev->obj_bucket[i].list) { -+ if (lh) { -+ obj = ylist_entry(lh, yaffs_obj_t, hash_link); -+ if (!obj->defered_free) { -+ yaffs2_obj_checkpt_obj(&cp, obj); -+ cp.struct_type = sizeof(cp); -+ -+ T(YAFFS_TRACE_CHECKPOINT, ( -+ TSTR("Checkpoint write object %d parent %d type %d chunk %d obj addr %p" TENDSTR), -+ cp.obj_id, cp.parent_id, cp.variant_type, cp.hdr_chunk, obj)); -+ -+ ok = (yaffs2_checkpt_wr(dev, &cp, sizeof(cp)) == sizeof(cp)); -+ -+ if (ok && obj->variant_type == YAFFS_OBJECT_TYPE_FILE) -+ ok = yaffs2_wr_checkpt_tnodes(obj); -+ } -+ } -+ } -+ } -+ -+ /* Dump end of list */ -+ memset(&cp, 0xFF, sizeof(yaffs_checkpt_obj_t)); -+ cp.struct_type = sizeof(cp); -+ -+ if (ok) -+ ok = (yaffs2_checkpt_wr(dev, &cp, sizeof(cp)) == sizeof(cp)); -+ -+ return ok ? 1 : 0; -+} -+ -+static int yaffs2_rd_checkpt_objs(yaffs_dev_t *dev) -+{ -+ yaffs_obj_t *obj; -+ yaffs_checkpt_obj_t cp; -+ int ok = 1; -+ int done = 0; -+ yaffs_obj_t *hard_list = NULL; -+ -+ while (ok && !done) { -+ ok = (yaffs2_checkpt_rd(dev, &cp, sizeof(cp)) == sizeof(cp)); -+ if (cp.struct_type != sizeof(cp)) { -+ T(YAFFS_TRACE_CHECKPOINT, (TSTR("struct size %d instead of %d ok %d"TENDSTR), -+ cp.struct_type, (int)sizeof(cp), ok)); -+ ok = 0; -+ } -+ -+ T(YAFFS_TRACE_CHECKPOINT, (TSTR("Checkpoint read object %d parent %d type %d chunk %d " TENDSTR), -+ cp.obj_id, cp.parent_id, cp.variant_type, cp.hdr_chunk)); -+ -+ if (ok && cp.obj_id == ~0) -+ done = 1; -+ else if (ok) { -+ obj = yaffs_find_or_create_by_number(dev, cp.obj_id, cp.variant_type); -+ if (obj) { -+ ok = taffs2_checkpt_obj_to_obj(obj, &cp); -+ if (!ok) -+ break; -+ if (obj->variant_type == YAFFS_OBJECT_TYPE_FILE) { -+ ok = yaffs2_rd_checkpt_tnodes(obj); -+ } else if (obj->variant_type == YAFFS_OBJECT_TYPE_HARDLINK) { -+ obj->hard_links.next = -+ (struct ylist_head *) hard_list; -+ hard_list = obj; -+ } -+ } else -+ ok = 0; -+ } -+ } -+ -+ if (ok) -+ yaffs_link_fixup(dev, hard_list); -+ -+ return ok ? 1 : 0; -+} -+ -+static int yaffs2_wr_checkpt_sum(yaffs_dev_t *dev) -+{ -+ __u32 checkpt_sum; -+ int ok; -+ -+ yaffs2_get_checkpt_sum(dev, &checkpt_sum); -+ -+ ok = (yaffs2_checkpt_wr(dev, &checkpt_sum, sizeof(checkpt_sum)) == sizeof(checkpt_sum)); -+ -+ if (!ok) -+ return 0; -+ -+ return 1; -+} -+ -+static int yaffs2_rd_checkpt_sum(yaffs_dev_t *dev) -+{ -+ __u32 checkpt_sum0; -+ __u32 checkpt_sum1; -+ int ok; -+ -+ yaffs2_get_checkpt_sum(dev, &checkpt_sum0); -+ -+ ok = (yaffs2_checkpt_rd(dev, &checkpt_sum1, sizeof(checkpt_sum1)) == sizeof(checkpt_sum1)); -+ -+ if (!ok) -+ return 0; -+ -+ if (checkpt_sum0 != checkpt_sum1) -+ return 0; -+ -+ return 1; -+} -+ -+ -+static int yaffs2_wr_checkpt_data(yaffs_dev_t *dev) -+{ -+ int ok = 1; -+ -+ if (!yaffs2_checkpt_required(dev)) { -+ T(YAFFS_TRACE_CHECKPOINT, (TSTR("skipping checkpoint write" TENDSTR))); -+ ok = 0; -+ } -+ -+ if (ok) -+ ok = yaffs2_checkpt_open(dev, 1); -+ -+ if (ok) { -+ T(YAFFS_TRACE_CHECKPOINT, (TSTR("write checkpoint validity" TENDSTR))); -+ ok = yaffs2_wr_checkpt_validity_marker(dev, 1); -+ } -+ if (ok) { -+ T(YAFFS_TRACE_CHECKPOINT, (TSTR("write checkpoint device" TENDSTR))); -+ ok = yaffs2_wr_checkpt_dev(dev); -+ } -+ if (ok) { -+ T(YAFFS_TRACE_CHECKPOINT, (TSTR("write checkpoint objects" TENDSTR))); -+ ok = yaffs2_wr_checkpt_objs(dev); -+ } -+ if (ok) { -+ T(YAFFS_TRACE_CHECKPOINT, (TSTR("write checkpoint validity" TENDSTR))); -+ ok = yaffs2_wr_checkpt_validity_marker(dev, 0); -+ } -+ -+ if (ok) -+ ok = yaffs2_wr_checkpt_sum(dev); -+ -+ if (!yaffs_checkpt_close(dev)) -+ ok = 0; -+ -+ if (ok) -+ dev->is_checkpointed = 1; -+ else -+ dev->is_checkpointed = 0; -+ -+ return dev->is_checkpointed; -+} -+ -+static int yaffs2_rd_checkpt_data(yaffs_dev_t *dev) -+{ -+ int ok = 1; -+ -+ if(!dev->param.is_yaffs2) -+ ok = 0; -+ -+ if (ok && dev->param.skip_checkpt_rd) { -+ T(YAFFS_TRACE_CHECKPOINT, (TSTR("skipping checkpoint read" TENDSTR))); -+ ok = 0; -+ } -+ -+ if (ok) -+ ok = yaffs2_checkpt_open(dev, 0); /* open for read */ -+ -+ if (ok) { -+ T(YAFFS_TRACE_CHECKPOINT, (TSTR("read checkpoint validity" TENDSTR))); -+ ok = yaffs2_rd_checkpt_validty_marker(dev, 1); -+ } -+ if (ok) { -+ T(YAFFS_TRACE_CHECKPOINT, (TSTR("read checkpoint device" TENDSTR))); -+ ok = yaffs2_rd_checkpt_dev(dev); -+ } -+ if (ok) { -+ T(YAFFS_TRACE_CHECKPOINT, (TSTR("read checkpoint objects" TENDSTR))); -+ ok = yaffs2_rd_checkpt_objs(dev); -+ } -+ if (ok) { -+ T(YAFFS_TRACE_CHECKPOINT, (TSTR("read checkpoint validity" TENDSTR))); -+ ok = yaffs2_rd_checkpt_validty_marker(dev, 0); -+ } -+ -+ if (ok) { -+ ok = yaffs2_rd_checkpt_sum(dev); -+ T(YAFFS_TRACE_CHECKPOINT, (TSTR("read checkpoint checksum %d" TENDSTR), ok)); -+ } -+ -+ if (!yaffs_checkpt_close(dev)) -+ ok = 0; -+ -+ if (ok) -+ dev->is_checkpointed = 1; -+ else -+ dev->is_checkpointed = 0; -+ -+ return ok ? 1 : 0; -+ -+} -+ -+void yaffs2_checkpt_invalidate(yaffs_dev_t *dev) -+{ -+ if (dev->is_checkpointed || -+ dev->blocks_in_checkpt > 0) { -+ dev->is_checkpointed = 0; -+ yaffs2_checkpt_invalidate_stream(dev); -+ } -+ if (dev->param.sb_dirty_fn) -+ dev->param.sb_dirty_fn(dev); -+} -+ -+ -+int yaffs_checkpoint_save(yaffs_dev_t *dev) -+{ -+ -+ T(YAFFS_TRACE_CHECKPOINT, (TSTR("save entry: is_checkpointed %d"TENDSTR), dev->is_checkpointed)); -+ -+ yaffs_verify_objects(dev); -+ yaffs_verify_blocks(dev); -+ yaffs_verify_free_chunks(dev); -+ -+ if (!dev->is_checkpointed) { -+ yaffs2_checkpt_invalidate(dev); -+ yaffs2_wr_checkpt_data(dev); -+ } -+ -+ T(YAFFS_TRACE_ALWAYS, (TSTR("save exit: is_checkpointed %d"TENDSTR), dev->is_checkpointed)); -+ -+ return dev->is_checkpointed; -+} -+ -+int yaffs2_checkpt_restore(yaffs_dev_t *dev) -+{ -+ int retval; -+ T(YAFFS_TRACE_CHECKPOINT, (TSTR("restore entry: is_checkpointed %d"TENDSTR), dev->is_checkpointed)); -+ -+ retval = yaffs2_rd_checkpt_data(dev); -+ -+ if (dev->is_checkpointed) { -+ yaffs_verify_objects(dev); -+ yaffs_verify_blocks(dev); -+ yaffs_verify_free_chunks(dev); -+ } -+ -+ T(YAFFS_TRACE_CHECKPOINT, (TSTR("restore exit: is_checkpointed %d"TENDSTR), dev->is_checkpointed)); -+ -+ return retval; -+} -+ -+int yaffs2_handle_hole(yaffs_obj_t *obj, loff_t new_size) -+{ -+ /* if newsSize > oldFileSize. -+ * We're going to be writing a hole. -+ * If the hole is small then write zeros otherwise write a start of hole marker. -+ */ -+ -+ -+ loff_t oldFileSize; -+ int increase; -+ int smallHole ; -+ int result = YAFFS_OK; -+ yaffs_dev_t *dev = NULL; -+ -+ __u8 *localBuffer = NULL; -+ -+ int smallIncreaseOk = 0; -+ -+ if(!obj) -+ return YAFFS_FAIL; -+ -+ if(obj->variant_type != YAFFS_OBJECT_TYPE_FILE) -+ return YAFFS_FAIL; -+ -+ dev = obj->my_dev; -+ -+ /* Bail out if not yaffs2 mode */ -+ if(!dev->param.is_yaffs2) -+ return YAFFS_OK; -+ -+ oldFileSize = obj->variant.file_variant.file_size; -+ -+ if (new_size <= oldFileSize) -+ return YAFFS_OK; -+ -+ increase = new_size - oldFileSize; -+ -+ if(increase < YAFFS_SMALL_HOLE_THRESHOLD * dev->data_bytes_per_chunk && -+ yaffs_check_alloc_available(dev, YAFFS_SMALL_HOLE_THRESHOLD + 1)) -+ smallHole = 1; -+ else -+ smallHole = 0; -+ -+ if(smallHole) -+ localBuffer= yaffs_get_temp_buffer(dev, __LINE__); -+ -+ if(localBuffer){ -+ /* fill hole with zero bytes */ -+ int pos = oldFileSize; -+ int thisWrite; -+ int written; -+ memset(localBuffer,0,dev->data_bytes_per_chunk); -+ smallIncreaseOk = 1; -+ -+ while(increase > 0 && smallIncreaseOk){ -+ thisWrite = increase; -+ if(thisWrite > dev->data_bytes_per_chunk) -+ thisWrite = dev->data_bytes_per_chunk; -+ written = yaffs_do_file_wr(obj,localBuffer,pos,thisWrite,0); -+ if(written == thisWrite){ -+ pos += thisWrite; -+ increase -= thisWrite; -+ } else -+ smallIncreaseOk = 0; -+ } -+ -+ yaffs_release_temp_buffer(dev,localBuffer,__LINE__); -+ -+ /* If we were out of space then reverse any chunks we've added */ -+ if(!smallIncreaseOk) -+ yaffs_resize_file_down(obj, oldFileSize); -+ } -+ -+ if (!smallIncreaseOk && -+ obj->parent && -+ obj->parent->obj_id != YAFFS_OBJECTID_UNLINKED && -+ obj->parent->obj_id != YAFFS_OBJECTID_DELETED){ -+ /* Write a hole start header with the old file size */ -+ yaffs_update_oh(obj, NULL, 0, 1, 0, NULL); -+ } -+ -+ return result; -+ -+} -+ -+ -+typedef struct { -+ int seq; -+ int block; -+} yaffs_BlockIndex; -+ -+ -+static int yaffs2_ybicmp(const void *a, const void *b) -+{ -+ register int aseq = ((yaffs_BlockIndex *)a)->seq; -+ register int bseq = ((yaffs_BlockIndex *)b)->seq; -+ register int ablock = ((yaffs_BlockIndex *)a)->block; -+ register int bblock = ((yaffs_BlockIndex *)b)->block; -+ if (aseq == bseq) -+ return ablock - bblock; -+ else -+ return aseq - bseq; -+} -+ -+int yaffs2_scan_backwards(yaffs_dev_t *dev) -+{ -+ yaffs_ext_tags tags; -+ int blk; -+ int blockIterator; -+ int startIterator; -+ int endIterator; -+ int nBlocksToScan = 0; -+ -+ int chunk; -+ int result; -+ int c; -+ int deleted; -+ yaffs_block_state_t state; -+ yaffs_obj_t *hard_list = NULL; -+ yaffs_block_info_t *bi; -+ __u32 seq_number; -+ yaffs_obj_header *oh; -+ yaffs_obj_t *in; -+ yaffs_obj_t *parent; -+ int nBlocks = dev->internal_end_block - dev->internal_start_block + 1; -+ int itsUnlinked; -+ __u8 *chunkData; -+ -+ int file_size; -+ int is_shrink; -+ int foundChunksInBlock; -+ int equiv_id; -+ int alloc_failed = 0; -+ -+ -+ yaffs_BlockIndex *blockIndex = NULL; -+ int altBlockIndex = 0; -+ -+ T(YAFFS_TRACE_SCAN, -+ (TSTR -+ ("yaffs2_scan_backwards starts intstartblk %d intendblk %d..." -+ TENDSTR), dev->internal_start_block, dev->internal_end_block)); -+ -+ -+ dev->seq_number = YAFFS_LOWEST_SEQUENCE_NUMBER; -+ -+ blockIndex = YMALLOC(nBlocks * sizeof(yaffs_BlockIndex)); -+ -+ if (!blockIndex) { -+ blockIndex = YMALLOC_ALT(nBlocks * sizeof(yaffs_BlockIndex)); -+ altBlockIndex = 1; -+ } -+ -+ if (!blockIndex) { -+ T(YAFFS_TRACE_SCAN, -+ (TSTR("yaffs2_scan_backwards() could not allocate block index!" TENDSTR))); -+ return YAFFS_FAIL; -+ } -+ -+ dev->blocks_in_checkpt = 0; -+ -+ chunkData = yaffs_get_temp_buffer(dev, __LINE__); -+ -+ /* Scan all the blocks to determine their state */ -+ bi = dev->block_info; -+ for (blk = dev->internal_start_block; blk <= dev->internal_end_block; blk++) { -+ yaffs_clear_chunk_bits(dev, blk); -+ bi->pages_in_use = 0; -+ bi->soft_del_pages = 0; -+ -+ yaffs_query_init_block_state(dev, blk, &state, &seq_number); -+ -+ bi->block_state = state; -+ bi->seq_number = seq_number; -+ -+ if (bi->seq_number == YAFFS_SEQUENCE_CHECKPOINT_DATA) -+ bi->block_state = state = YAFFS_BLOCK_STATE_CHECKPOINT; -+ if (bi->seq_number == YAFFS_SEQUENCE_BAD_BLOCK) -+ bi->block_state = state = YAFFS_BLOCK_STATE_DEAD; -+ -+ T(YAFFS_TRACE_SCAN_DEBUG, -+ (TSTR("Block scanning block %d state %d seq %d" TENDSTR), blk, -+ state, seq_number)); -+ -+ -+ if (state == YAFFS_BLOCK_STATE_CHECKPOINT) { -+ dev->blocks_in_checkpt++; -+ -+ } else if (state == YAFFS_BLOCK_STATE_DEAD) { -+ T(YAFFS_TRACE_BAD_BLOCKS, -+ (TSTR("block %d is bad" TENDSTR), blk)); -+ } else if (state == YAFFS_BLOCK_STATE_EMPTY) { -+ T(YAFFS_TRACE_SCAN_DEBUG, -+ (TSTR("Block empty " TENDSTR))); -+ dev->n_erased_blocks++; -+ dev->n_free_chunks += dev->param.chunks_per_block; -+ } else if (state == YAFFS_BLOCK_STATE_NEEDS_SCANNING) { -+ -+ /* Determine the highest sequence number */ -+ if (seq_number >= YAFFS_LOWEST_SEQUENCE_NUMBER && -+ seq_number < YAFFS_HIGHEST_SEQUENCE_NUMBER) { -+ -+ blockIndex[nBlocksToScan].seq = seq_number; -+ blockIndex[nBlocksToScan].block = blk; -+ -+ nBlocksToScan++; -+ -+ if (seq_number >= dev->seq_number) -+ dev->seq_number = seq_number; -+ } else { -+ /* TODO: Nasty sequence number! */ -+ T(YAFFS_TRACE_SCAN, -+ (TSTR -+ ("Block scanning block %d has bad sequence number %d" -+ TENDSTR), blk, seq_number)); -+ -+ } -+ } -+ bi++; -+ } -+ -+ T(YAFFS_TRACE_SCAN, -+ (TSTR("%d blocks to be sorted..." TENDSTR), nBlocksToScan)); -+ -+ -+ -+ YYIELD(); -+ -+ /* Sort the blocks by sequence number*/ -+ yaffs_qsort(blockIndex, nBlocksToScan, sizeof(yaffs_BlockIndex), yaffs2_ybicmp); -+ -+ YYIELD(); -+ -+ T(YAFFS_TRACE_SCAN, (TSTR("...done" TENDSTR))); -+ -+ /* Now scan the blocks looking at the data. */ -+ startIterator = 0; -+ endIterator = nBlocksToScan - 1; -+ T(YAFFS_TRACE_SCAN_DEBUG, -+ (TSTR("%d blocks to be scanned" TENDSTR), nBlocksToScan)); -+ -+ /* For each block.... backwards */ -+ for (blockIterator = endIterator; !alloc_failed && blockIterator >= startIterator; -+ blockIterator--) { -+ /* Cooperative multitasking! This loop can run for so -+ long that watchdog timers expire. */ -+ YYIELD(); -+ -+ /* get the block to scan in the correct order */ -+ blk = blockIndex[blockIterator].block; -+ -+ bi = yaffs_get_block_info(dev, blk); -+ -+ -+ state = bi->block_state; -+ -+ deleted = 0; -+ -+ /* For each chunk in each block that needs scanning.... */ -+ foundChunksInBlock = 0; -+ for (c = dev->param.chunks_per_block - 1; -+ !alloc_failed && c >= 0 && -+ (state == YAFFS_BLOCK_STATE_NEEDS_SCANNING || -+ state == YAFFS_BLOCK_STATE_ALLOCATING); c--) { -+ /* Scan backwards... -+ * Read the tags and decide what to do -+ */ -+ -+ chunk = blk * dev->param.chunks_per_block + c; -+ -+ result = yaffs_rd_chunk_tags_nand(dev, chunk, NULL, -+ &tags); -+ -+ /* Let's have a good look at this chunk... */ -+ -+ if (!tags.chunk_used) { -+ /* An unassigned chunk in the block. -+ * If there are used chunks after this one, then -+ * it is a chunk that was skipped due to failing the erased -+ * check. Just skip it so that it can be deleted. -+ * But, more typically, We get here when this is an unallocated -+ * chunk and his means that either the block is empty or -+ * this is the one being allocated from -+ */ -+ -+ if (foundChunksInBlock) { -+ /* This is a chunk that was skipped due to failing the erased check */ -+ } else if (c == 0) { -+ /* We're looking at the first chunk in the block so the block is unused */ -+ state = YAFFS_BLOCK_STATE_EMPTY; -+ dev->n_erased_blocks++; -+ } else { -+ if (state == YAFFS_BLOCK_STATE_NEEDS_SCANNING || -+ state == YAFFS_BLOCK_STATE_ALLOCATING) { -+ if (dev->seq_number == bi->seq_number) { -+ /* this is the block being allocated from */ -+ -+ T(YAFFS_TRACE_SCAN, -+ (TSTR -+ (" Allocating from %d %d" -+ TENDSTR), blk, c)); -+ -+ state = YAFFS_BLOCK_STATE_ALLOCATING; -+ dev->alloc_block = blk; -+ dev->alloc_page = c; -+ dev->alloc_block_finder = blk; -+ } else { -+ /* This is a partially written block that is not -+ * the current allocation block. -+ */ -+ -+ T(YAFFS_TRACE_SCAN, -+ (TSTR("Partially written block %d detected" TENDSTR), -+ blk)); -+ } -+ } -+ } -+ -+ dev->n_free_chunks++; -+ -+ } else if (tags.ecc_result == YAFFS_ECC_RESULT_UNFIXED) { -+ T(YAFFS_TRACE_SCAN, -+ (TSTR(" Unfixed ECC in chunk(%d:%d), chunk ignored"TENDSTR), -+ blk, c)); -+ -+ dev->n_free_chunks++; -+ -+ } else if (tags.obj_id > YAFFS_MAX_OBJECT_ID || -+ tags.chunk_id > YAFFS_MAX_CHUNK_ID || -+ (tags.chunk_id > 0 && tags.n_bytes > dev->data_bytes_per_chunk) || -+ tags.seq_number != bi->seq_number ) { -+ T(YAFFS_TRACE_SCAN, -+ (TSTR("Chunk (%d:%d) with bad tags:obj = %d, chunk_id = %d, n_bytes = %d, ignored"TENDSTR), -+ blk, c,tags.obj_id, tags.chunk_id, tags.n_bytes)); -+ -+ dev->n_free_chunks++; -+ -+ } else if (tags.chunk_id > 0) { -+ /* chunk_id > 0 so it is a data chunk... */ -+ unsigned int endpos; -+ __u32 chunkBase = -+ (tags.chunk_id - 1) * dev->data_bytes_per_chunk; -+ -+ foundChunksInBlock = 1; -+ -+ -+ yaffs_set_chunk_bit(dev, blk, c); -+ bi->pages_in_use++; -+ -+ in = yaffs_find_or_create_by_number(dev, -+ tags. -+ obj_id, -+ YAFFS_OBJECT_TYPE_FILE); -+ if (!in) { -+ /* Out of memory */ -+ alloc_failed = 1; -+ } -+ -+ if (in && -+ in->variant_type == YAFFS_OBJECT_TYPE_FILE -+ && chunkBase < in->variant.file_variant.shrink_size) { -+ /* This has not been invalidated by a resize */ -+ if (!yaffs_put_chunk_in_file(in, tags.chunk_id, chunk, -1)) { -+ alloc_failed = 1; -+ } -+ -+ /* File size is calculated by looking at the data chunks if we have not -+ * seen an object header yet. Stop this practice once we find an object header. -+ */ -+ endpos = chunkBase + tags.n_bytes; -+ -+ if (!in->valid && /* have not got an object header yet */ -+ in->variant.file_variant.scanned_size < endpos) { -+ in->variant.file_variant.scanned_size = endpos; -+ in->variant.file_variant.file_size = endpos; -+ } -+ -+ } else if (in) { -+ /* This chunk has been invalidated by a resize, or a past file deletion -+ * so delete the chunk*/ -+ yaffs_chunk_del(dev, chunk, 1, __LINE__); -+ -+ } -+ } else { -+ /* chunk_id == 0, so it is an ObjectHeader. -+ * Thus, we read in the object header and make the object -+ */ -+ foundChunksInBlock = 1; -+ -+ yaffs_set_chunk_bit(dev, blk, c); -+ bi->pages_in_use++; -+ -+ oh = NULL; -+ in = NULL; -+ -+ if (tags.extra_available) { -+ in = yaffs_find_or_create_by_number(dev, -+ tags.obj_id, -+ tags.extra_obj_type); -+ if (!in) -+ alloc_failed = 1; -+ } -+ -+ if (!in || -+ (!in->valid && dev->param.disable_lazy_load) || -+ tags.extra_shadows || -+ (!in->valid && -+ (tags.obj_id == YAFFS_OBJECTID_ROOT || -+ tags.obj_id == YAFFS_OBJECTID_LOSTNFOUND))) { -+ -+ /* If we don't have valid info then we need to read the chunk -+ * TODO In future we can probably defer reading the chunk and -+ * living with invalid data until needed. -+ */ -+ -+ result = yaffs_rd_chunk_tags_nand(dev, -+ chunk, -+ chunkData, -+ NULL); -+ -+ oh = (yaffs_obj_header *) chunkData; -+ -+ if (dev->param.inband_tags) { -+ /* Fix up the header if they got corrupted by inband tags */ -+ oh->shadows_obj = oh->inband_shadowed_obj_id; -+ oh->is_shrink = oh->inband_is_shrink; -+ } -+ -+ if (!in) { -+ in = yaffs_find_or_create_by_number(dev, tags.obj_id, oh->type); -+ if (!in) -+ alloc_failed = 1; -+ } -+ -+ } -+ -+ if (!in) { -+ /* TODO Hoosterman we have a problem! */ -+ T(YAFFS_TRACE_ERROR, -+ (TSTR -+ ("yaffs tragedy: Could not make object for object %d at chunk %d during scan" -+ TENDSTR), tags.obj_id, chunk)); -+ continue; -+ } -+ -+ if (in->valid) { -+ /* We have already filled this one. -+ * We have a duplicate that will be discarded, but -+ * we first have to suck out resize info if it is a file. -+ */ -+ -+ if ((in->variant_type == YAFFS_OBJECT_TYPE_FILE) && -+ ((oh && -+ oh->type == YAFFS_OBJECT_TYPE_FILE) || -+ (tags.extra_available && -+ tags.extra_obj_type == YAFFS_OBJECT_TYPE_FILE))) { -+ __u32 thisSize = -+ (oh) ? oh->file_size : tags. -+ extra_length; -+ __u32 parent_obj_id = -+ (oh) ? oh-> -+ parent_obj_id : tags. -+ extra_parent_id; -+ -+ -+ is_shrink = -+ (oh) ? oh->is_shrink : tags. -+ extra_is_shrink; -+ -+ /* If it is deleted (unlinked at start also means deleted) -+ * we treat the file size as being zeroed at this point. -+ */ -+ if (parent_obj_id == -+ YAFFS_OBJECTID_DELETED -+ || parent_obj_id == -+ YAFFS_OBJECTID_UNLINKED) { -+ thisSize = 0; -+ is_shrink = 1; -+ } -+ -+ if (is_shrink && in->variant.file_variant.shrink_size > thisSize) -+ in->variant.file_variant.shrink_size = thisSize; -+ -+ if (is_shrink) -+ bi->has_shrink_hdr = 1; -+ -+ } -+ /* Use existing - destroy this one. */ -+ yaffs_chunk_del(dev, chunk, 1, __LINE__); -+ -+ } -+ -+ if (!in->valid && in->variant_type != -+ (oh ? oh->type : tags.extra_obj_type)) -+ T(YAFFS_TRACE_ERROR, ( -+ TSTR("yaffs tragedy: Bad object type, " -+ TCONT("%d != %d, for object %d at chunk ") -+ TCONT("%d during scan") -+ TENDSTR), oh ? -+ oh->type : tags.extra_obj_type, -+ in->variant_type, tags.obj_id, -+ chunk)); -+ -+ if (!in->valid && -+ (tags.obj_id == YAFFS_OBJECTID_ROOT || -+ tags.obj_id == -+ YAFFS_OBJECTID_LOSTNFOUND)) { -+ /* We only load some info, don't fiddle with directory structure */ -+ in->valid = 1; -+ -+ if (oh) { -+ -+ in->yst_mode = oh->yst_mode; -+#ifdef CONFIG_YAFFS_WINCE -+ in->win_atime[0] = oh->win_atime[0]; -+ in->win_ctime[0] = oh->win_ctime[0]; -+ in->win_mtime[0] = oh->win_mtime[0]; -+ in->win_atime[1] = oh->win_atime[1]; -+ in->win_ctime[1] = oh->win_ctime[1]; -+ in->win_mtime[1] = oh->win_mtime[1]; -+#else -+ in->yst_uid = oh->yst_uid; -+ in->yst_gid = oh->yst_gid; -+ in->yst_atime = oh->yst_atime; -+ in->yst_mtime = oh->yst_mtime; -+ in->yst_ctime = oh->yst_ctime; -+ in->yst_rdev = oh->yst_rdev; -+ -+ in->lazy_loaded = 0; -+ -+#endif -+ } else -+ in->lazy_loaded = 1; -+ -+ in->hdr_chunk = chunk; -+ -+ } else if (!in->valid) { -+ /* we need to load this info */ -+ -+ in->valid = 1; -+ in->hdr_chunk = chunk; -+ -+ if (oh) { -+ in->variant_type = oh->type; -+ -+ in->yst_mode = oh->yst_mode; -+#ifdef CONFIG_YAFFS_WINCE -+ in->win_atime[0] = oh->win_atime[0]; -+ in->win_ctime[0] = oh->win_ctime[0]; -+ in->win_mtime[0] = oh->win_mtime[0]; -+ in->win_atime[1] = oh->win_atime[1]; -+ in->win_ctime[1] = oh->win_ctime[1]; -+ in->win_mtime[1] = oh->win_mtime[1]; -+#else -+ in->yst_uid = oh->yst_uid; -+ in->yst_gid = oh->yst_gid; -+ in->yst_atime = oh->yst_atime; -+ in->yst_mtime = oh->yst_mtime; -+ in->yst_ctime = oh->yst_ctime; -+ in->yst_rdev = oh->yst_rdev; -+#endif -+ -+ if (oh->shadows_obj > 0) -+ yaffs_handle_shadowed_obj(dev, -+ oh-> -+ shadows_obj, -+ 1); -+ -+ -+ -+ yaffs_set_obj_name_from_oh(in, oh); -+ parent = -+ yaffs_find_or_create_by_number -+ (dev, oh->parent_obj_id, -+ YAFFS_OBJECT_TYPE_DIRECTORY); -+ -+ file_size = oh->file_size; -+ is_shrink = oh->is_shrink; -+ equiv_id = oh->equiv_id; -+ -+ } else { -+ in->variant_type = tags.extra_obj_type; -+ parent = -+ yaffs_find_or_create_by_number -+ (dev, tags.extra_parent_id, -+ YAFFS_OBJECT_TYPE_DIRECTORY); -+ file_size = tags.extra_length; -+ is_shrink = tags.extra_is_shrink; -+ equiv_id = tags.extra_equiv_id; -+ in->lazy_loaded = 1; -+ -+ } -+ in->dirty = 0; -+ -+ if (!parent) -+ alloc_failed = 1; -+ -+ /* directory stuff... -+ * hook up to parent -+ */ -+ -+ if (parent && parent->variant_type == -+ YAFFS_OBJECT_TYPE_UNKNOWN) { -+ /* Set up as a directory */ -+ parent->variant_type = -+ YAFFS_OBJECT_TYPE_DIRECTORY; -+ YINIT_LIST_HEAD(&parent->variant. -+ dir_variant. -+ children); -+ } else if (!parent || parent->variant_type != -+ YAFFS_OBJECT_TYPE_DIRECTORY) { -+ /* Hoosterman, another problem.... -+ * We're trying to use a non-directory as a directory -+ */ -+ -+ T(YAFFS_TRACE_ERROR, -+ (TSTR -+ ("yaffs tragedy: attempting to use non-directory as a directory in scan. Put in lost+found." -+ TENDSTR))); -+ parent = dev->lost_n_found; -+ } -+ -+ yaffs_add_obj_to_dir(parent, in); -+ -+ itsUnlinked = (parent == dev->del_dir) || -+ (parent == dev->unlinked_dir); -+ -+ if (is_shrink) { -+ /* Mark the block as having a shrinkHeader */ -+ bi->has_shrink_hdr = 1; -+ } -+ -+ /* Note re hardlinks. -+ * Since we might scan a hardlink before its equivalent object is scanned -+ * we put them all in a list. -+ * After scanning is complete, we should have all the objects, so we run -+ * through this list and fix up all the chains. -+ */ -+ -+ switch (in->variant_type) { -+ case YAFFS_OBJECT_TYPE_UNKNOWN: -+ /* Todo got a problem */ -+ break; -+ case YAFFS_OBJECT_TYPE_FILE: -+ -+ if (in->variant.file_variant. -+ scanned_size < file_size) { -+ /* This covers the case where the file size is greater -+ * than where the data is -+ * This will happen if the file is resized to be larger -+ * than its current data extents. -+ */ -+ in->variant.file_variant.file_size = file_size; -+ in->variant.file_variant.scanned_size = file_size; -+ } -+ -+ if (in->variant.file_variant.shrink_size > file_size) -+ in->variant.file_variant.shrink_size = file_size; -+ -+ -+ break; -+ case YAFFS_OBJECT_TYPE_HARDLINK: -+ if (!itsUnlinked) { -+ in->variant.hardlink_variant.equiv_id = -+ equiv_id; -+ in->hard_links.next = -+ (struct ylist_head *) hard_list; -+ hard_list = in; -+ } -+ break; -+ case YAFFS_OBJECT_TYPE_DIRECTORY: -+ /* Do nothing */ -+ break; -+ case YAFFS_OBJECT_TYPE_SPECIAL: -+ /* Do nothing */ -+ break; -+ case YAFFS_OBJECT_TYPE_SYMLINK: -+ if (oh) { -+ in->variant.symlink_variant.alias = -+ yaffs_clone_str(oh->alias); -+ if (!in->variant.symlink_variant.alias) -+ alloc_failed = 1; -+ } -+ break; -+ } -+ -+ } -+ -+ } -+ -+ } /* End of scanning for each chunk */ -+ -+ if (state == YAFFS_BLOCK_STATE_NEEDS_SCANNING) { -+ /* If we got this far while scanning, then the block is fully allocated. */ -+ state = YAFFS_BLOCK_STATE_FULL; -+ } -+ -+ -+ bi->block_state = state; -+ -+ /* Now let's see if it was dirty */ -+ if (bi->pages_in_use == 0 && -+ !bi->has_shrink_hdr && -+ bi->block_state == YAFFS_BLOCK_STATE_FULL) { -+ yaffs_block_became_dirty(dev, blk); -+ } -+ -+ } -+ -+ yaffs_skip_rest_of_block(dev); -+ -+ if (altBlockIndex) -+ YFREE_ALT(blockIndex); -+ else -+ YFREE(blockIndex); -+ -+ /* Ok, we've done all the scanning. -+ * Fix up the hard link chains. -+ * We should now have scanned all the objects, now it's time to add these -+ * hardlinks. -+ */ -+ yaffs_link_fixup(dev, hard_list); -+ -+ -+ yaffs_release_temp_buffer(dev, chunkData, __LINE__); -+ -+ if (alloc_failed) -+ return YAFFS_FAIL; -+ -+ T(YAFFS_TRACE_SCAN, (TSTR("yaffs2_scan_backwards ends" TENDSTR))); -+ -+ return YAFFS_OK; -+} ---- /dev/null -+++ b/fs/yaffs2/yaffs_yaffs2.h -@@ -0,0 +1,36 @@ -+/* -+ * YAFFS: Yet Another Flash File System. A NAND-flash specific file system. -+ * -+ * Copyright (C) 2002-2010 Aleph One Ltd. -+ * for Toby Churchill Ltd and Brightstar Engineering -+ * -+ * Created by Charles Manning -+ * -+ * This program is free software; you can redistribute it and/or modify -+ * it under the terms of the GNU General Public License version 2 as -+ * published by the Free Software Foundation. -+ */ -+ -+#ifndef __YAFFS_YAFFS2_H__ -+#define __YAFFS_YAFFS2_H__ -+ -+#include "yaffs_guts.h" -+ -+void yaffs_calc_oldest_dirty_seq(yaffs_dev_t *dev); -+void yaffs2_find_oldest_dirty_seq(yaffs_dev_t *dev); -+void yaffs2_clear_oldest_dirty_seq(yaffs_dev_t *dev, yaffs_block_info_t *bi); -+void yaffs2_update_oldest_dirty_seq(yaffs_dev_t *dev, unsigned block_no, yaffs_block_info_t *bi); -+int yaffs_block_ok_for_gc(yaffs_dev_t *dev, yaffs_block_info_t *bi); -+__u32 yaffs2_find_refresh_block(yaffs_dev_t *dev); -+int yaffs2_checkpt_required(yaffs_dev_t *dev); -+int yaffs_calc_checkpt_blocks_required(yaffs_dev_t *dev); -+ -+ -+void yaffs2_checkpt_invalidate(yaffs_dev_t *dev); -+int yaffs2_checkpt_save(yaffs_dev_t *dev); -+int yaffs2_checkpt_restore(yaffs_dev_t *dev); -+ -+int yaffs2_handle_hole(yaffs_obj_t *obj, loff_t new_size); -+int yaffs2_scan_backwards(yaffs_dev_t *dev); -+ -+#endif ---- a/fs/yaffs2/yportenv.h -+++ b/fs/yaffs2/yportenv.h -@@ -1,7 +1,7 @@ - /* - * YAFFS: Yet another Flash File System . A NAND-flash specific file system. - * -- * Copyright (C) 2002-2007 Aleph One Ltd. -+ * Copyright (C) 2002-2010 Aleph One Ltd. - * for Toby Churchill Ltd and Brightstar Engineering - * - * Created by Charles Manning -@@ -41,12 +41,14 @@ - #if (LINUX_VERSION_CODE < KERNEL_VERSION(2, 6, 19)) - #include - #endif -+ - #include - #include - #include - #include - #include - #include -+#include - - #define YCHAR char - #define YUCHAR unsigned char -@@ -55,11 +57,11 @@ - #define yaffs_strcpy(a, b) strcpy(a, b) - #define yaffs_strncpy(a, b, c) strncpy(a, b, c) - #define yaffs_strncmp(a, b, c) strncmp(a, b, c) --#define yaffs_strlen(s) strlen(s) -+#define yaffs_strnlen(s,m) strnlen(s,m) - #define yaffs_sprintf sprintf - #define yaffs_toupper(a) toupper(a) - --#define Y_INLINE inline -+#define Y_INLINE __inline__ - - #define YAFFS_LOSTNFOUND_NAME "lost+found" - #define YAFFS_LOSTNFOUND_PREFIX "obj" -@@ -71,11 +73,11 @@ - #define YFREE_ALT(x) vfree(x) - #define YMALLOC_DMA(x) YMALLOC(x) - --/* KR - added for use in scan so processes aren't blocked indefinitely. */ - #define YYIELD() schedule() -+#define Y_DUMP_STACK() dump_stack() - --#define YAFFS_ROOT_MODE 0666 --#define YAFFS_LOSTNFOUND_MODE 0666 -+#define YAFFS_ROOT_MODE 0755 -+#define YAFFS_LOSTNFOUND_MODE 0700 - - #if (LINUX_VERSION_CODE > KERNEL_VERSION(2, 5, 0)) - #define Y_CURRENT_TIME CURRENT_TIME.tv_sec -@@ -85,19 +87,14 @@ - #define Y_TIME_CONVERT(x) (x) - #endif - --#define yaffs_SumCompare(x, y) ((x) == (y)) -+#define yaffs_sum_cmp(x, y) ((x) == (y)) - #define yaffs_strcmp(a, b) strcmp(a, b) - - #define TENDSTR "\n" --#define TSTR(x) KERN_WARNING x -+#define TSTR(x) KERN_DEBUG x - #define TCONT(x) x - #define TOUT(p) printk p - --#define yaffs_trace(mask, fmt, args...) \ -- do { if ((mask) & (yaffs_traceMask|YAFFS_TRACE_ERROR)) \ -- printk(KERN_WARNING "yaffs: " fmt, ## args); \ -- } while (0) -- - #define compile_time_assertion(assertion) \ - ({ int x = __builtin_choose_expr(assertion, 0, (void)0); (void) x; }) - -@@ -116,7 +113,6 @@ - #include "stdio.h" - #include "string.h" - --#include "devextras.h" - - #define YMALLOC(x) malloc(x) - #define YFREE(x) free(x) -@@ -129,7 +125,7 @@ - #define yaffs_strcat(a, b) strcat(a, b) - #define yaffs_strcpy(a, b) strcpy(a, b) - #define yaffs_strncpy(a, b, c) strncpy(a, b, c) --#define yaffs_strlen(s) strlen(s) -+#define yaffs_strnlen(s,m) strnlen(s,m) - #define yaffs_sprintf sprintf - #define yaffs_toupper(a) toupper(a) - -@@ -146,10 +142,10 @@ - #define YAFFS_LOSTNFOUND_PREFIX "obj" - /* #define YPRINTF(x) printf x */ - --#define YAFFS_ROOT_MODE 0666 --#define YAFFS_LOSTNFOUND_MODE 0666 -+#define YAFFS_ROOT_MODE 0755 -+#define YAFFS_LOSTNFOUND_MODE 0700 - --#define yaffs_SumCompare(x, y) ((x) == (y)) -+#define yaffs_sum_cmp(x, y) ((x) == (y)) - #define yaffs_strcmp(a, b) strcmp(a, b) - - #else -@@ -158,46 +154,180 @@ - - #endif - --/* see yaffs_fs.c */ --extern unsigned int yaffs_traceMask; --extern unsigned int yaffs_wr_attempts; -+#if defined(CONFIG_YAFFS_DIRECT) || defined(CONFIG_YAFFS_WINCE) - --/* -- * Tracing flags. -- * The flags masked in YAFFS_TRACE_ALWAYS are always traced. -- */ -+#ifdef CONFIG_YAFFSFS_PROVIDE_VALUES -+ -+#ifndef O_RDONLY -+#define O_RDONLY 00 -+#endif -+ -+#ifndef O_WRONLY -+#define O_WRONLY 01 -+#endif -+ -+#ifndef O_RDWR -+#define O_RDWR 02 -+#endif -+ -+#ifndef O_CREAT -+#define O_CREAT 0100 -+#endif -+ -+#ifndef O_EXCL -+#define O_EXCL 0200 -+#endif -+ -+#ifndef O_TRUNC -+#define O_TRUNC 01000 -+#endif -+ -+#ifndef O_APPEND -+#define O_APPEND 02000 -+#endif -+ -+#ifndef SEEK_SET -+#define SEEK_SET 0 -+#endif -+ -+#ifndef SEEK_CUR -+#define SEEK_CUR 1 -+#endif -+ -+#ifndef SEEK_END -+#define SEEK_END 2 -+#endif -+ -+#ifndef EBUSY -+#define EBUSY 16 -+#endif -+ -+#ifndef ENODEV -+#define ENODEV 19 -+#endif -+ -+#ifndef EINVAL -+#define EINVAL 22 -+#endif -+ -+#ifndef EBADF -+#define EBADF 9 -+#endif -+ -+#ifndef EACCES -+#define EACCES 13 -+#endif -+ -+#ifndef EXDEV -+#define EXDEV 18 -+#endif -+ -+#ifndef ENOENT -+#define ENOENT 2 -+#endif -+ -+#ifndef ENOSPC -+#define ENOSPC 28 -+#endif -+ -+#ifndef ERANGE -+#define ERANGE 34 -+#endif -+ -+#ifndef ENODATA -+#define ENODATA 61 -+#endif -+ -+#ifndef ENOTEMPTY -+#define ENOTEMPTY 39 -+#endif -+ -+#ifndef ENAMETOOLONG -+#define ENAMETOOLONG 36 -+#endif -+ -+#ifndef ENOMEM -+#define ENOMEM 12 -+#endif -+ -+#ifndef EEXIST -+#define EEXIST 17 -+#endif -+ -+#ifndef ENOTDIR -+#define ENOTDIR 20 -+#endif -+ -+#ifndef EISDIR -+#define EISDIR 21 -+#endif -+ -+ -+// Mode flags -+ -+#ifndef S_IFMT -+#define S_IFMT 0170000 -+#endif -+ -+#ifndef S_IFLNK -+#define S_IFLNK 0120000 -+#endif - --#define YAFFS_TRACE_OS 0x00000002 --#define YAFFS_TRACE_ALLOCATE 0x00000004 --#define YAFFS_TRACE_SCAN 0x00000008 --#define YAFFS_TRACE_BAD_BLOCKS 0x00000010 --#define YAFFS_TRACE_ERASE 0x00000020 --#define YAFFS_TRACE_GC 0x00000040 --#define YAFFS_TRACE_WRITE 0x00000080 --#define YAFFS_TRACE_TRACING 0x00000100 --#define YAFFS_TRACE_DELETION 0x00000200 --#define YAFFS_TRACE_BUFFERS 0x00000400 --#define YAFFS_TRACE_NANDACCESS 0x00000800 --#define YAFFS_TRACE_GC_DETAIL 0x00001000 --#define YAFFS_TRACE_SCAN_DEBUG 0x00002000 --#define YAFFS_TRACE_MTD 0x00004000 --#define YAFFS_TRACE_CHECKPOINT 0x00008000 -- --#define YAFFS_TRACE_VERIFY 0x00010000 --#define YAFFS_TRACE_VERIFY_NAND 0x00020000 --#define YAFFS_TRACE_VERIFY_FULL 0x00040000 --#define YAFFS_TRACE_VERIFY_ALL 0x000F0000 -- -- --#define YAFFS_TRACE_ERROR 0x40000000 --#define YAFFS_TRACE_BUG 0x80000000 --#define YAFFS_TRACE_ALWAYS 0xF0000000 -+#ifndef S_IFDIR -+#define S_IFDIR 0040000 -+#endif -+ -+#ifndef S_IFREG -+#define S_IFREG 0100000 -+#endif - -+#ifndef S_IREAD -+#define S_IREAD 0000400 -+#endif -+ -+#ifndef S_IWRITE -+#define S_IWRITE 0000200 -+#endif - --#define T(mask, p) do { if ((mask) & (yaffs_traceMask | YAFFS_TRACE_ALWAYS)) TOUT(p); } while (0) -+#ifndef S_IEXEC -+#define S_IEXEC 0000100 -+#endif -+ -+#ifndef XATTR_CREATE -+#define XATTR_CREATE 1 -+#endif -+ -+#ifndef XATTR_REPLACE -+#define XATTR_REPLACE 2 -+#endif -+ -+#ifndef R_OK -+#define R_OK 4 -+#define W_OK 2 -+#define X_OK 1 -+#define F_OK 0 -+#endif -+ -+#else -+#include -+#include -+#include -+#endif -+ -+#endif -+ -+#ifndef Y_DUMP_STACK -+#define Y_DUMP_STACK() do { } while (0) -+#endif - - #ifndef YBUG --#define YBUG() do {T(YAFFS_TRACE_BUG, (TSTR("==>> yaffs bug: " __FILE__ " %d" TENDSTR), __LINE__)); } while (0) -+#define YBUG() do {\ -+ T(YAFFS_TRACE_BUG,\ -+ (TSTR("==>> yaffs bug: " __FILE__ " %d" TENDSTR),\ -+ __LINE__));\ -+ Y_DUMP_STACK();\ -+} while (0) - #endif - -+ - #endif diff --git a/target/linux/generic/patches-2.6.39/512-jffs2_eofdetect.patch b/target/linux/generic/patches-2.6.39/512-jffs2_eofdetect.patch new file mode 100644 index 00000000000..eaf9489d357 --- /dev/null +++ b/target/linux/generic/patches-2.6.39/512-jffs2_eofdetect.patch @@ -0,0 +1,132 @@ +--- a/fs/jffs2/build.c ++++ b/fs/jffs2/build.c +@@ -112,6 +112,17 @@ static int jffs2_build_filesystem(struct + dbg_fsbuild("scanned flash completely\n"); + jffs2_dbg_dump_block_lists_nolock(c); + ++ if (c->flags & (1 << 7)) { ++ printk("%s(): unlocking the mtd device... ", __func__); ++ if (c->mtd->unlock) ++ c->mtd->unlock(c->mtd, 0, c->mtd->size); ++ printk("done.\n"); ++ ++ printk("%s(): erasing all blocks after the end marker... ", __func__); ++ jffs2_erase_pending_blocks(c, -1); ++ printk("done.\n"); ++ } ++ + dbg_fsbuild("pass 1 starting\n"); + c->flags |= JFFS2_SB_FLAG_BUILDING; + /* Now scan the directory tree, increasing nlink according to every dirent found. */ +--- a/fs/jffs2/scan.c ++++ b/fs/jffs2/scan.c +@@ -72,7 +72,7 @@ static int file_dirty(struct jffs2_sb_in + return ret; + if ((ret = jffs2_scan_dirty_space(c, jeb, jeb->free_size))) + return ret; +- /* Turned wasted size into dirty, since we apparently ++ /* Turned wasted size into dirty, since we apparently + think it's recoverable now. */ + jeb->dirty_size += jeb->wasted_size; + c->dirty_size += jeb->wasted_size; +@@ -144,8 +144,11 @@ int jffs2_scan_medium(struct jffs2_sb_in + /* reset summary info for next eraseblock scan */ + jffs2_sum_reset_collected(s); + +- ret = jffs2_scan_eraseblock(c, jeb, buf_size?flashbuf:(flashbuf+jeb->offset), +- buf_size, s); ++ if (c->flags & (1 << 7)) ++ ret = BLK_STATE_ALLFF; ++ else ++ ret = jffs2_scan_eraseblock(c, jeb, buf_size?flashbuf:(flashbuf+jeb->offset), ++ buf_size, s); + + if (ret < 0) + goto out; +@@ -402,7 +405,7 @@ static int jffs2_scan_xref_node(struct j + if (!ref) + return -ENOMEM; + +- /* BEFORE jffs2_build_xattr_subsystem() called, ++ /* BEFORE jffs2_build_xattr_subsystem() called, + * and AFTER xattr_ref is marked as a dead xref, + * ref->xid is used to store 32bit xid, xd is not used + * ref->ino is used to store 32bit inode-number, ic is not used +@@ -475,7 +478,7 @@ static int jffs2_scan_eraseblock (struct + struct jffs2_sum_marker *sm; + void *sumptr = NULL; + uint32_t sumlen; +- ++ + if (!buf_size) { + /* XIP case. Just look, point at the summary if it's there */ + sm = (void *)buf + c->sector_size - sizeof(*sm); +@@ -491,9 +494,9 @@ static int jffs2_scan_eraseblock (struct + buf_len = sizeof(*sm); + + /* Read as much as we want into the _end_ of the preallocated buffer */ +- err = jffs2_fill_scan_buf(c, buf + buf_size - buf_len, ++ err = jffs2_fill_scan_buf(c, buf + buf_size - buf_len, + jeb->offset + c->sector_size - buf_len, +- buf_len); ++ buf_len); + if (err) + return err; + +@@ -512,9 +515,9 @@ static int jffs2_scan_eraseblock (struct + } + if (buf_len < sumlen) { + /* Need to read more so that the entire summary node is present */ +- err = jffs2_fill_scan_buf(c, sumptr, ++ err = jffs2_fill_scan_buf(c, sumptr, + jeb->offset + c->sector_size - sumlen, +- sumlen - buf_len); ++ sumlen - buf_len); + if (err) + return err; + } +@@ -527,7 +530,7 @@ static int jffs2_scan_eraseblock (struct + + if (buf_size && sumlen > buf_size) + kfree(sumptr); +- /* If it returns with a real error, bail. ++ /* If it returns with a real error, bail. + If it returns positive, that's a block classification + (i.e. BLK_STATE_xxx) so return that too. + If it returns zero, fall through to full scan. */ +@@ -548,6 +551,17 @@ static int jffs2_scan_eraseblock (struct + return err; + } + ++ if ((buf[0] == 0xde) && ++ (buf[1] == 0xad) && ++ (buf[2] == 0xc0) && ++ (buf[3] == 0xde)) { ++ /* end of filesystem. erase everything after this point */ ++ printk("%s(): End of filesystem marker found at 0x%x\n", __func__, jeb->offset); ++ c->flags |= (1 << 7); ++ ++ return BLK_STATE_ALLFF; ++ } ++ + /* We temporarily use 'ofs' as a pointer into the buffer/jeb */ + ofs = 0; + max_ofs = EMPTY_SCAN_SIZE(c->sector_size); +@@ -673,7 +687,7 @@ scan_more: + scan_end = buf_len; + goto more_empty; + } +- ++ + /* See how much more there is to read in this eraseblock... */ + buf_len = min_t(uint32_t, buf_size, jeb->offset + c->sector_size - ofs); + if (!buf_len) { +@@ -909,7 +923,7 @@ scan_more: + + D1(printk(KERN_DEBUG "Block at 0x%08x: free 0x%08x, dirty 0x%08x, unchecked 0x%08x, used 0x%08x, wasted 0x%08x\n", + jeb->offset,jeb->free_size, jeb->dirty_size, jeb->unchecked_size, jeb->used_size, jeb->wasted_size)); +- ++ + /* mark_node_obsolete can add to wasted !! */ + if (jeb->wasted_size) { + jeb->dirty_size += jeb->wasted_size; diff --git a/target/linux/generic/patches-2.6.39/512-yaffs_symlink_bug.patch b/target/linux/generic/patches-2.6.39/512-yaffs_symlink_bug.patch deleted file mode 100644 index dabf2871bf7..00000000000 --- a/target/linux/generic/patches-2.6.39/512-yaffs_symlink_bug.patch +++ /dev/null @@ -1,17 +0,0 @@ ---- a/fs/yaffs2/yaffs_guts.c -+++ b/fs/yaffs2/yaffs_guts.c -@@ -1709,11 +1709,11 @@ static int yaffs_change_obj_name(yaffs_o - } - - /* TODO: Do we need this different handling for YAFFS2 and YAFFS1?? */ -- if (obj->my_dev->param.is_yaffs2) -+ // if (obj->my_dev->param.is_yaffs2) - unlinkOp = (new_dir == obj->my_dev->unlinked_dir); -- else -+ /* else - unlinkOp = (new_dir == obj->my_dev->unlinked_dir -- && obj->variant_type == YAFFS_OBJECT_TYPE_FILE); -+ && obj->variant_type == YAFFS_OBJECT_TYPE_FILE); */ - - deleteOp = (new_dir == obj->my_dev->del_dir); - diff --git a/target/linux/generic/patches-2.6.39/513-yaffs_mutex_fix.patch b/target/linux/generic/patches-2.6.39/513-yaffs_mutex_fix.patch deleted file mode 100644 index b34b12f7858..00000000000 --- a/target/linux/generic/patches-2.6.39/513-yaffs_mutex_fix.patch +++ /dev/null @@ -1,20 +0,0 @@ ---- a/fs/yaffs2/yaffs_vfs_glue.c -+++ b/fs/yaffs2/yaffs_vfs_glue.c -@@ -3036,7 +3036,7 @@ static struct super_block *yaffs_interna - YINIT_LIST_HEAD(&(yaffs_dev_to_lc(dev)->searchContexts)); - param->remove_obj_fn = yaffs_remove_obj_callback; - -- init_MUTEX(&(yaffs_dev_to_lc(dev)->grossLock)); -+ sema_init(&(yaffs_dev_to_lc(dev)->grossLock), 1); - - yaffs_gross_lock(dev); - -@@ -3494,7 +3494,7 @@ static int __init init_yaffs_fs(void) - - - -- init_MUTEX(&yaffs_context_lock); -+ sema_init((&yaffs_context_lock), 1); - - /* Install the proc_fs entries */ - my_proc_entry = create_proc_entry("yaffs", diff --git a/target/linux/generic/patches-2.6.39/520-squashfs_update_xz_comp_opts.patch b/target/linux/generic/patches-2.6.39/520-squashfs_update_xz_comp_opts.patch new file mode 100644 index 00000000000..523b89f9acf --- /dev/null +++ b/target/linux/generic/patches-2.6.39/520-squashfs_update_xz_comp_opts.patch @@ -0,0 +1,25 @@ +From f31b7c0efa255dd17a5f584022a319387f09b0d8 Mon Sep 17 00:00:00 2001 +From: Jonas Gorski +Date: Tue, 12 Apr 2011 19:55:41 +0200 +Subject: [PATCH] squashfs: update xz compressor options struct. + +Update the xz compressor options struct to match the squashfs userspace +one. +--- + fs/squashfs/xz_wrapper.c | 4 +++- + 1 files changed, 3 insertions(+), 1 deletions(-) + +--- a/fs/squashfs/xz_wrapper.c ++++ b/fs/squashfs/xz_wrapper.c +@@ -39,8 +39,10 @@ struct squashfs_xz { + }; + + struct comp_opts { +- __le32 dictionary_size; + __le32 flags; ++ __le16 bit_opts; ++ __le16 fb; ++ __le32 dictionary_size; + }; + + static void *squashfs_xz_init(struct squashfs_sb_info *msblk, void *buff, diff --git a/target/linux/generic/patches-2.6.39/550-squashfs_update_xz_comp_opts.patch b/target/linux/generic/patches-2.6.39/550-squashfs_update_xz_comp_opts.patch deleted file mode 100644 index 523b89f9acf..00000000000 --- a/target/linux/generic/patches-2.6.39/550-squashfs_update_xz_comp_opts.patch +++ /dev/null @@ -1,25 +0,0 @@ -From f31b7c0efa255dd17a5f584022a319387f09b0d8 Mon Sep 17 00:00:00 2001 -From: Jonas Gorski -Date: Tue, 12 Apr 2011 19:55:41 +0200 -Subject: [PATCH] squashfs: update xz compressor options struct. - -Update the xz compressor options struct to match the squashfs userspace -one. ---- - fs/squashfs/xz_wrapper.c | 4 +++- - 1 files changed, 3 insertions(+), 1 deletions(-) - ---- a/fs/squashfs/xz_wrapper.c -+++ b/fs/squashfs/xz_wrapper.c -@@ -39,8 +39,10 @@ struct squashfs_xz { - }; - - struct comp_opts { -- __le32 dictionary_size; - __le32 flags; -+ __le16 bit_opts; -+ __le16 fb; -+ __le32 dictionary_size; - }; - - static void *squashfs_xz_init(struct squashfs_sb_info *msblk, void *buff, diff --git a/target/linux/generic/patches-2.6.39/600-netfilter_layer7_2.22.patch b/target/linux/generic/patches-2.6.39/600-netfilter_layer7_2.22.patch new file mode 100644 index 00000000000..710afc8c99f --- /dev/null +++ b/target/linux/generic/patches-2.6.39/600-netfilter_layer7_2.22.patch @@ -0,0 +1,2132 @@ +--- a/net/netfilter/Kconfig ++++ b/net/netfilter/Kconfig +@@ -1018,6 +1018,27 @@ config NETFILTER_XT_MATCH_STATE + + To compile it as a module, choose M here. If unsure, say N. + ++config NETFILTER_XT_MATCH_LAYER7 ++ tristate '"layer7" match support' ++ depends on NETFILTER_XTABLES ++ depends on EXPERIMENTAL && (IP_NF_CONNTRACK || NF_CONNTRACK) ++ depends on NETFILTER_ADVANCED ++ help ++ Say Y if you want to be able to classify connections (and their ++ packets) based on regular expression matching of their application ++ layer data. This is one way to classify applications such as ++ peer-to-peer filesharing systems that do not always use the same ++ port. ++ ++ To compile it as a module, choose M here. If unsure, say N. ++ ++config NETFILTER_XT_MATCH_LAYER7_DEBUG ++ bool 'Layer 7 debugging output' ++ depends on NETFILTER_XT_MATCH_LAYER7 ++ help ++ Say Y to get lots of debugging output. ++ ++ + config NETFILTER_XT_MATCH_STATISTIC + tristate '"statistic" match support' + depends on NETFILTER_ADVANCED +--- a/net/netfilter/Makefile ++++ b/net/netfilter/Makefile +@@ -102,6 +102,7 @@ obj-$(CONFIG_NETFILTER_XT_MATCH_RECENT) + obj-$(CONFIG_NETFILTER_XT_MATCH_SCTP) += xt_sctp.o + obj-$(CONFIG_NETFILTER_XT_MATCH_SOCKET) += xt_socket.o + obj-$(CONFIG_NETFILTER_XT_MATCH_STATE) += xt_state.o ++obj-$(CONFIG_NETFILTER_XT_MATCH_LAYER7) += xt_layer7.o + obj-$(CONFIG_NETFILTER_XT_MATCH_STATISTIC) += xt_statistic.o + obj-$(CONFIG_NETFILTER_XT_MATCH_STRING) += xt_string.o + obj-$(CONFIG_NETFILTER_XT_MATCH_TCPMSS) += xt_tcpmss.o +--- /dev/null ++++ b/net/netfilter/xt_layer7.c +@@ -0,0 +1,666 @@ ++/* ++ Kernel module to match application layer (OSI layer 7) data in connections. ++ ++ http://l7-filter.sf.net ++ ++ (C) 2003-2009 Matthew Strait and Ethan Sommer. ++ ++ This program is free software; you can redistribute it and/or ++ modify it under the terms of the GNU General Public License ++ as published by the Free Software Foundation; either version ++ 2 of the License, or (at your option) any later version. ++ http://www.gnu.org/licenses/gpl.txt ++ ++ Based on ipt_string.c (C) 2000 Emmanuel Roger , ++ xt_helper.c (C) 2002 Harald Welte and cls_layer7.c (C) 2003 Matthew Strait, ++ Ethan Sommer, Justin Levandoski. ++*/ ++ ++#include ++#include ++#include ++#include ++#include ++#include ++#include ++#include ++#include ++#if LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 27) ++#include ++#include ++#endif ++#include ++#include ++#include ++#include ++ ++#include "regexp/regexp.c" ++ ++MODULE_LICENSE("GPL"); ++MODULE_AUTHOR("Matthew Strait , Ethan Sommer "); ++MODULE_DESCRIPTION("iptables application layer match module"); ++MODULE_ALIAS("ipt_layer7"); ++MODULE_VERSION("2.21"); ++ ++static int maxdatalen = 2048; // this is the default ++module_param(maxdatalen, int, 0444); ++MODULE_PARM_DESC(maxdatalen, "maximum bytes of data looked at by l7-filter"); ++#ifdef CONFIG_NETFILTER_XT_MATCH_LAYER7_DEBUG ++ #define DPRINTK(format,args...) printk(format,##args) ++#else ++ #define DPRINTK(format,args...) ++#endif ++ ++/* Number of packets whose data we look at. ++This can be modified through /proc/net/layer7_numpackets */ ++static int num_packets = 10; ++ ++static struct pattern_cache { ++ char * regex_string; ++ regexp * pattern; ++ struct pattern_cache * next; ++} * first_pattern_cache = NULL; ++ ++DEFINE_SPINLOCK(l7_lock); ++ ++static int total_acct_packets(struct nf_conn *ct) ++{ ++#if LINUX_VERSION_CODE <= KERNEL_VERSION(2, 6, 26) ++ BUG_ON(ct == NULL); ++ return (ct->counters[IP_CT_DIR_ORIGINAL].packets + ct->counters[IP_CT_DIR_REPLY].packets); ++#else ++ struct nf_conn_counter *acct; ++ ++ BUG_ON(ct == NULL); ++ acct = nf_conn_acct_find(ct); ++ if (!acct) ++ return 0; ++ return (acct[IP_CT_DIR_ORIGINAL].packets + acct[IP_CT_DIR_REPLY].packets); ++#endif ++} ++ ++#ifdef CONFIG_IP_NF_MATCH_LAYER7_DEBUG ++/* Converts an unfriendly string into a friendly one by ++replacing unprintables with periods and all whitespace with " ". */ ++static char * friendly_print(unsigned char * s) ++{ ++ char * f = kmalloc(strlen(s) + 1, GFP_ATOMIC); ++ int i; ++ ++ if(!f) { ++ if (net_ratelimit()) ++ printk(KERN_ERR "layer7: out of memory in " ++ "friendly_print, bailing.\n"); ++ return NULL; ++ } ++ ++ for(i = 0; i < strlen(s); i++){ ++ if(isprint(s[i]) && s[i] < 128) f[i] = s[i]; ++ else if(isspace(s[i])) f[i] = ' '; ++ else f[i] = '.'; ++ } ++ f[i] = '\0'; ++ return f; ++} ++ ++static char dec2hex(int i) ++{ ++ switch (i) { ++ case 0 ... 9: ++ return (i + '0'); ++ break; ++ case 10 ... 15: ++ return (i - 10 + 'a'); ++ break; ++ default: ++ if (net_ratelimit()) ++ printk("layer7: Problem in dec2hex\n"); ++ return '\0'; ++ } ++} ++ ++static char * hex_print(unsigned char * s) ++{ ++ char * g = kmalloc(strlen(s)*3 + 1, GFP_ATOMIC); ++ int i; ++ ++ if(!g) { ++ if (net_ratelimit()) ++ printk(KERN_ERR "layer7: out of memory in hex_print, " ++ "bailing.\n"); ++ return NULL; ++ } ++ ++ for(i = 0; i < strlen(s); i++) { ++ g[i*3 ] = dec2hex(s[i]/16); ++ g[i*3 + 1] = dec2hex(s[i]%16); ++ g[i*3 + 2] = ' '; ++ } ++ g[i*3] = '\0'; ++ ++ return g; ++} ++#endif // DEBUG ++ ++/* Use instead of regcomp. As we expect to be seeing the same regexps over and ++over again, it make sense to cache the results. */ ++static regexp * compile_and_cache(const char * regex_string, ++ const char * protocol) ++{ ++ struct pattern_cache * node = first_pattern_cache; ++ struct pattern_cache * last_pattern_cache = first_pattern_cache; ++ struct pattern_cache * tmp; ++ unsigned int len; ++ ++ while (node != NULL) { ++ if (!strcmp(node->regex_string, regex_string)) ++ return node->pattern; ++ ++ last_pattern_cache = node;/* points at the last non-NULL node */ ++ node = node->next; ++ } ++ ++ /* If we reach the end of the list, then we have not yet cached ++ the pattern for this regex. Let's do that now. ++ Be paranoid about running out of memory to avoid list corruption. */ ++ tmp = kmalloc(sizeof(struct pattern_cache), GFP_ATOMIC); ++ ++ if(!tmp) { ++ if (net_ratelimit()) ++ printk(KERN_ERR "layer7: out of memory in " ++ "compile_and_cache, bailing.\n"); ++ return NULL; ++ } ++ ++ tmp->regex_string = kmalloc(strlen(regex_string) + 1, GFP_ATOMIC); ++ tmp->pattern = kmalloc(sizeof(struct regexp), GFP_ATOMIC); ++ tmp->next = NULL; ++ ++ if(!tmp->regex_string || !tmp->pattern) { ++ if (net_ratelimit()) ++ printk(KERN_ERR "layer7: out of memory in " ++ "compile_and_cache, bailing.\n"); ++ kfree(tmp->regex_string); ++ kfree(tmp->pattern); ++ kfree(tmp); ++ return NULL; ++ } ++ ++ /* Ok. The new node is all ready now. */ ++ node = tmp; ++ ++ if(first_pattern_cache == NULL) /* list is empty */ ++ first_pattern_cache = node; /* make node the beginning */ ++ else ++ last_pattern_cache->next = node; /* attach node to the end */ ++ ++ /* copy the string and compile the regex */ ++ len = strlen(regex_string); ++ DPRINTK("About to compile this: \"%s\"\n", regex_string); ++ node->pattern = regcomp((char *)regex_string, &len); ++ if ( !node->pattern ) { ++ if (net_ratelimit()) ++ printk(KERN_ERR "layer7: Error compiling regexp " ++ "\"%s\" (%s)\n", ++ regex_string, protocol); ++ /* pattern is now cached as NULL, so we won't try again. */ ++ } ++ ++ strcpy(node->regex_string, regex_string); ++ return node->pattern; ++} ++ ++static int can_handle(const struct sk_buff *skb) ++{ ++ if(!ip_hdr(skb)) /* not IP */ ++ return 0; ++ if(ip_hdr(skb)->protocol != IPPROTO_TCP && ++ ip_hdr(skb)->protocol != IPPROTO_UDP && ++ ip_hdr(skb)->protocol != IPPROTO_ICMP) ++ return 0; ++ return 1; ++} ++ ++/* Returns offset the into the skb->data that the application data starts */ ++static int app_data_offset(const struct sk_buff *skb) ++{ ++ /* In case we are ported somewhere (ebtables?) where ip_hdr(skb) ++ isn't set, this can be gotten from 4*(skb->data[0] & 0x0f) as well. */ ++ int ip_hl = 4*ip_hdr(skb)->ihl; ++ ++ if( ip_hdr(skb)->protocol == IPPROTO_TCP ) { ++ /* 12 == offset into TCP header for the header length field. ++ Can't get this with skb->h.th->doff because the tcphdr ++ struct doesn't get set when routing (this is confirmed to be ++ true in Netfilter as well as QoS.) */ ++ int tcp_hl = 4*(skb->data[ip_hl + 12] >> 4); ++ ++ return ip_hl + tcp_hl; ++ } else if( ip_hdr(skb)->protocol == IPPROTO_UDP ) { ++ return ip_hl + 8; /* UDP header is always 8 bytes */ ++ } else if( ip_hdr(skb)->protocol == IPPROTO_ICMP ) { ++ return ip_hl + 8; /* ICMP header is 8 bytes */ ++ } else { ++ if (net_ratelimit()) ++ printk(KERN_ERR "layer7: tried to handle unknown " ++ "protocol!\n"); ++ return ip_hl + 8; /* something reasonable */ ++ } ++} ++ ++/* handles whether there's a match when we aren't appending data anymore */ ++static int match_no_append(struct nf_conn * conntrack, ++ struct nf_conn * master_conntrack, ++ enum ip_conntrack_info ctinfo, ++ enum ip_conntrack_info master_ctinfo, ++ const struct xt_layer7_info * info) ++{ ++ /* If we're in here, throw the app data away */ ++ if(master_conntrack->layer7.app_data != NULL) { ++ ++ #ifdef CONFIG_IP_NF_MATCH_LAYER7_DEBUG ++ if(!master_conntrack->layer7.app_proto) { ++ char * f = ++ friendly_print(master_conntrack->layer7.app_data); ++ char * g = ++ hex_print(master_conntrack->layer7.app_data); ++ DPRINTK("\nl7-filter gave up after %d bytes " ++ "(%d packets):\n%s\n", ++ strlen(f), total_acct_packets(master_conntrack), f); ++ kfree(f); ++ DPRINTK("In hex: %s\n", g); ++ kfree(g); ++ } ++ #endif ++ ++ kfree(master_conntrack->layer7.app_data); ++ master_conntrack->layer7.app_data = NULL; /* don't free again */ ++ } ++ ++ if(master_conntrack->layer7.app_proto){ ++ /* Here child connections set their .app_proto (for /proc) */ ++ if(!conntrack->layer7.app_proto) { ++ conntrack->layer7.app_proto = ++ kmalloc(strlen(master_conntrack->layer7.app_proto)+1, ++ GFP_ATOMIC); ++ if(!conntrack->layer7.app_proto){ ++ if (net_ratelimit()) ++ printk(KERN_ERR "layer7: out of memory " ++ "in match_no_append, " ++ "bailing.\n"); ++ return 1; ++ } ++ strcpy(conntrack->layer7.app_proto, ++ master_conntrack->layer7.app_proto); ++ } ++ ++ return (!strcmp(master_conntrack->layer7.app_proto, ++ info->protocol)); ++ } ++ else { ++ /* If not classified, set to "unknown" to distinguish from ++ connections that are still being tested. */ ++ master_conntrack->layer7.app_proto = ++ kmalloc(strlen("unknown")+1, GFP_ATOMIC); ++ if(!master_conntrack->layer7.app_proto){ ++ if (net_ratelimit()) ++ printk(KERN_ERR "layer7: out of memory in " ++ "match_no_append, bailing.\n"); ++ return 1; ++ } ++ strcpy(master_conntrack->layer7.app_proto, "unknown"); ++ return 0; ++ } ++} ++ ++/* add the new app data to the conntrack. Return number of bytes added. */ ++static int add_data(struct nf_conn * master_conntrack, ++ char * app_data, int appdatalen) ++{ ++ int length = 0, i; ++ int oldlength = master_conntrack->layer7.app_data_len; ++ ++ /* This is a fix for a race condition by Deti Fliegl. However, I'm not ++ clear on whether the race condition exists or whether this really ++ fixes it. I might just be being dense... Anyway, if it's not really ++ a fix, all it does is waste a very small amount of time. */ ++ if(!master_conntrack->layer7.app_data) return 0; ++ ++ /* Strip nulls. Make everything lower case (our regex lib doesn't ++ do case insensitivity). Add it to the end of the current data. */ ++ for(i = 0; i < maxdatalen-oldlength-1 && ++ i < appdatalen; i++) { ++ if(app_data[i] != '\0') { ++ /* the kernel version of tolower mungs 'upper ascii' */ ++ master_conntrack->layer7.app_data[length+oldlength] = ++ isascii(app_data[i])? ++ tolower(app_data[i]) : app_data[i]; ++ length++; ++ } ++ } ++ ++ master_conntrack->layer7.app_data[length+oldlength] = '\0'; ++ master_conntrack->layer7.app_data_len = length + oldlength; ++ ++ return length; ++} ++ ++/* taken from drivers/video/modedb.c */ ++static int my_atoi(const char *s) ++{ ++ int val = 0; ++ ++ for (;; s++) { ++ switch (*s) { ++ case '0'...'9': ++ val = 10*val+(*s-'0'); ++ break; ++ default: ++ return val; ++ } ++ } ++} ++ ++/* write out num_packets to userland. */ ++static int layer7_read_proc(char* page, char ** start, off_t off, int count, ++ int* eof, void * data) ++{ ++ if(num_packets > 99 && net_ratelimit()) ++ printk(KERN_ERR "layer7: NOT REACHED. num_packets too big\n"); ++ ++ page[0] = num_packets/10 + '0'; ++ page[1] = num_packets%10 + '0'; ++ page[2] = '\n'; ++ page[3] = '\0'; ++ ++ *eof=1; ++ ++ return 3; ++} ++ ++/* Read in num_packets from userland */ ++static int layer7_write_proc(struct file* file, const char* buffer, ++ unsigned long count, void *data) ++{ ++ char * foo = kmalloc(count, GFP_ATOMIC); ++ ++ if(!foo){ ++ if (net_ratelimit()) ++ printk(KERN_ERR "layer7: out of memory, bailing. " ++ "num_packets unchanged.\n"); ++ return count; ++ } ++ ++ if(copy_from_user(foo, buffer, count)) { ++ return -EFAULT; ++ } ++ ++ ++ num_packets = my_atoi(foo); ++ kfree (foo); ++ ++ /* This has an arbitrary limit to make the math easier. I'm lazy. ++ But anyway, 99 is a LOT! If you want more, you're doing it wrong! */ ++ if(num_packets > 99) { ++ printk(KERN_WARNING "layer7: num_packets can't be > 99.\n"); ++ num_packets = 99; ++ } else if(num_packets < 1) { ++ printk(KERN_WARNING "layer7: num_packets can't be < 1.\n"); ++ num_packets = 1; ++ } ++ ++ return count; ++} ++ ++static bool ++#if LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 28) ++match(const struct sk_buff *skbin, const struct xt_match_param *par) ++#else ++match(const struct sk_buff *skbin, ++ const struct net_device *in, ++ const struct net_device *out, ++ const struct xt_match *match, ++ const void *matchinfo, ++ int offset, ++ unsigned int protoff, ++ bool *hotdrop) ++#endif ++{ ++ /* sidestep const without getting a compiler warning... */ ++ struct sk_buff * skb = (struct sk_buff *)skbin; ++ ++ const struct xt_layer7_info * info = ++ #if LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 28) ++ par->matchinfo; ++ #else ++ matchinfo; ++ #endif ++ ++ enum ip_conntrack_info master_ctinfo, ctinfo; ++ struct nf_conn *master_conntrack, *conntrack; ++ unsigned char * app_data; ++ unsigned int pattern_result, appdatalen; ++ regexp * comppattern; ++ ++ /* Be paranoid/incompetent - lock the entire match function. */ ++ spin_lock_bh(&l7_lock); ++ ++ if(!can_handle(skb)){ ++ DPRINTK("layer7: This is some protocol I can't handle.\n"); ++ spin_unlock_bh(&l7_lock); ++ return info->invert; ++ } ++ ++ /* Treat parent & all its children together as one connection, except ++ for the purpose of setting conntrack->layer7.app_proto in the actual ++ connection. This makes /proc/net/ip_conntrack more satisfying. */ ++ if(!(conntrack = nf_ct_get(skb, &ctinfo)) || ++ !(master_conntrack=nf_ct_get(skb,&master_ctinfo))){ ++ DPRINTK("layer7: couldn't get conntrack.\n"); ++ spin_unlock_bh(&l7_lock); ++ return info->invert; ++ } ++ ++ /* Try to get a master conntrack (and its master etc) for FTP, etc. */ ++ while (master_ct(master_conntrack) != NULL) ++ master_conntrack = master_ct(master_conntrack); ++ ++ /* if we've classified it or seen too many packets */ ++ if(total_acct_packets(master_conntrack) > num_packets || ++ master_conntrack->layer7.app_proto) { ++ ++ pattern_result = match_no_append(conntrack, master_conntrack, ++ ctinfo, master_ctinfo, info); ++ ++ /* skb->cb[0] == seen. Don't do things twice if there are ++ multiple l7 rules. I'm not sure that using cb for this purpose ++ is correct, even though it says "put your private variables ++ there". But it doesn't look like it is being used for anything ++ else in the skbs that make it here. */ ++ skb->cb[0] = 1; /* marking it seen here's probably irrelevant */ ++ ++ spin_unlock_bh(&l7_lock); ++ return (pattern_result ^ info->invert); ++ } ++ ++ if(skb_is_nonlinear(skb)){ ++ if(skb_linearize(skb) != 0){ ++ if (net_ratelimit()) ++ printk(KERN_ERR "layer7: failed to linearize " ++ "packet, bailing.\n"); ++ spin_unlock_bh(&l7_lock); ++ return info->invert; ++ } ++ } ++ ++ /* now that the skb is linearized, it's safe to set these. */ ++ app_data = skb->data + app_data_offset(skb); ++ appdatalen = skb_tail_pointer(skb) - app_data; ++ ++ /* the return value gets checked later, when we're ready to use it */ ++ comppattern = compile_and_cache(info->pattern, info->protocol); ++ ++ /* On the first packet of a connection, allocate space for app data */ ++ if(total_acct_packets(master_conntrack) == 1 && !skb->cb[0] && ++ !master_conntrack->layer7.app_data){ ++ master_conntrack->layer7.app_data = ++ kmalloc(maxdatalen, GFP_ATOMIC); ++ if(!master_conntrack->layer7.app_data){ ++ if (net_ratelimit()) ++ printk(KERN_ERR "layer7: out of memory in " ++ "match, bailing.\n"); ++ spin_unlock_bh(&l7_lock); ++ return info->invert; ++ } ++ ++ master_conntrack->layer7.app_data[0] = '\0'; ++ } ++ ++ /* Can be here, but unallocated, if numpackets is increased near ++ the beginning of a connection */ ++ if(master_conntrack->layer7.app_data == NULL){ ++ spin_unlock_bh(&l7_lock); ++ return info->invert; /* unmatched */ ++ } ++ ++ if(!skb->cb[0]){ ++ int newbytes; ++ newbytes = add_data(master_conntrack, app_data, appdatalen); ++ ++ if(newbytes == 0) { /* didn't add any data */ ++ skb->cb[0] = 1; ++ /* Didn't match before, not going to match now */ ++ spin_unlock_bh(&l7_lock); ++ return info->invert; ++ } ++ } ++ ++ /* If looking for "unknown", then never match. "Unknown" means that ++ we've given up; we're still trying with these packets. */ ++ if(!strcmp(info->protocol, "unknown")) { ++ pattern_result = 0; ++ /* If looking for "unset", then always match. "Unset" means that we ++ haven't yet classified the connection. */ ++ } else if(!strcmp(info->protocol, "unset")) { ++ pattern_result = 2; ++ DPRINTK("layer7: matched unset: not yet classified " ++ "(%d/%d packets)\n", ++ total_acct_packets(master_conntrack), num_packets); ++ /* If the regexp failed to compile, don't bother running it */ ++ } else if(comppattern && ++ regexec(comppattern, master_conntrack->layer7.app_data)){ ++ DPRINTK("layer7: matched %s\n", info->protocol); ++ pattern_result = 1; ++ } else pattern_result = 0; ++ ++ if(pattern_result == 1) { ++ master_conntrack->layer7.app_proto = ++ kmalloc(strlen(info->protocol)+1, GFP_ATOMIC); ++ if(!master_conntrack->layer7.app_proto){ ++ if (net_ratelimit()) ++ printk(KERN_ERR "layer7: out of memory in " ++ "match, bailing.\n"); ++ spin_unlock_bh(&l7_lock); ++ return (pattern_result ^ info->invert); ++ } ++ strcpy(master_conntrack->layer7.app_proto, info->protocol); ++ } else if(pattern_result > 1) { /* cleanup from "unset" */ ++ pattern_result = 1; ++ } ++ ++ /* mark the packet seen */ ++ skb->cb[0] = 1; ++ ++ spin_unlock_bh(&l7_lock); ++ return (pattern_result ^ info->invert); ++} ++ ++// load nf_conntrack_ipv4 ++#if LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 28) ++static bool check(const struct xt_mtchk_param *par) ++{ ++ if (nf_ct_l3proto_try_module_get(par->match->family) < 0) { ++ printk(KERN_WARNING "can't load conntrack support for " ++ "proto=%d\n", par->match->family); ++#else ++static bool check(const char *tablename, const void *inf, ++ const struct xt_match *match, void *matchinfo, ++ unsigned int hook_mask) ++{ ++ if (nf_ct_l3proto_try_module_get(match->family) < 0) { ++ printk(KERN_WARNING "can't load conntrack support for " ++ "proto=%d\n", match->family); ++#endif ++ return 0; ++ } ++ return 1; ++} ++ ++ ++#if LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 28) ++ static void destroy(const struct xt_mtdtor_param *par) ++ { ++ nf_ct_l3proto_module_put(par->match->family); ++ } ++#else ++ static void destroy(const struct xt_match *match, void *matchinfo) ++ { ++ nf_ct_l3proto_module_put(match->family); ++ } ++#endif ++ ++static struct xt_match xt_layer7_match[] __read_mostly = { ++{ ++ .name = "layer7", ++ .family = AF_INET, ++ .checkentry = check, ++ .match = match, ++ .destroy = destroy, ++ .matchsize = sizeof(struct xt_layer7_info), ++ .me = THIS_MODULE ++} ++}; ++ ++static void layer7_cleanup_proc(void) ++{ ++ remove_proc_entry("layer7_numpackets", init_net.proc_net); ++} ++ ++/* register the proc file */ ++static void layer7_init_proc(void) ++{ ++ struct proc_dir_entry* entry; ++ entry = create_proc_entry("layer7_numpackets", 0644, init_net.proc_net); ++ entry->read_proc = layer7_read_proc; ++ entry->write_proc = layer7_write_proc; ++} ++ ++static int __init xt_layer7_init(void) ++{ ++ need_conntrack(); ++ ++ layer7_init_proc(); ++ if(maxdatalen < 1) { ++ printk(KERN_WARNING "layer7: maxdatalen can't be < 1, " ++ "using 1\n"); ++ maxdatalen = 1; ++ } ++ /* This is not a hard limit. It's just here to prevent people from ++ bringing their slow machines to a grinding halt. */ ++ else if(maxdatalen > 65536) { ++ printk(KERN_WARNING "layer7: maxdatalen can't be > 65536, " ++ "using 65536\n"); ++ maxdatalen = 65536; ++ } ++ return xt_register_matches(xt_layer7_match, ++ ARRAY_SIZE(xt_layer7_match)); ++} ++ ++static void __exit xt_layer7_fini(void) ++{ ++ layer7_cleanup_proc(); ++ xt_unregister_matches(xt_layer7_match, ARRAY_SIZE(xt_layer7_match)); ++} ++ ++module_init(xt_layer7_init); ++module_exit(xt_layer7_fini); +--- /dev/null ++++ b/net/netfilter/regexp/regexp.c +@@ -0,0 +1,1197 @@ ++/* ++ * regcomp and regexec -- regsub and regerror are elsewhere ++ * @(#)regexp.c 1.3 of 18 April 87 ++ * ++ * Copyright (c) 1986 by University of Toronto. ++ * Written by Henry Spencer. Not derived from licensed software. ++ * ++ * Permission is granted to anyone to use this software for any ++ * purpose on any computer system, and to redistribute it freely, ++ * subject to the following restrictions: ++ * ++ * 1. The author is not responsible for the consequences of use of ++ * this software, no matter how awful, even if they arise ++ * from defects in it. ++ * ++ * 2. The origin of this software must not be misrepresented, either ++ * by explicit claim or by omission. ++ * ++ * 3. Altered versions must be plainly marked as such, and must not ++ * be misrepresented as being the original software. ++ * ++ * Beware that some of this code is subtly aware of the way operator ++ * precedence is structured in regular expressions. Serious changes in ++ * regular-expression syntax might require a total rethink. ++ * ++ * This code was modified by Ethan Sommer to work within the kernel ++ * (it now uses kmalloc etc..) ++ * ++ * Modified slightly by Matthew Strait to use more modern C. ++ */ ++ ++#include "regexp.h" ++#include "regmagic.h" ++ ++/* added by ethan and matt. Lets it work in both kernel and user space. ++(So iptables can use it, for instance.) Yea, it goes both ways... */ ++#if __KERNEL__ ++ #define malloc(foo) kmalloc(foo,GFP_ATOMIC) ++#else ++ #define printk(format,args...) printf(format,##args) ++#endif ++ ++void regerror(char * s) ++{ ++ printk("<3>Regexp: %s\n", s); ++ /* NOTREACHED */ ++} ++ ++/* ++ * The "internal use only" fields in regexp.h are present to pass info from ++ * compile to execute that permits the execute phase to run lots faster on ++ * simple cases. They are: ++ * ++ * regstart char that must begin a match; '\0' if none obvious ++ * reganch is the match anchored (at beginning-of-line only)? ++ * regmust string (pointer into program) that match must include, or NULL ++ * regmlen length of regmust string ++ * ++ * Regstart and reganch permit very fast decisions on suitable starting points ++ * for a match, cutting down the work a lot. Regmust permits fast rejection ++ * of lines that cannot possibly match. The regmust tests are costly enough ++ * that regcomp() supplies a regmust only if the r.e. contains something ++ * potentially expensive (at present, the only such thing detected is * or + ++ * at the start of the r.e., which can involve a lot of backup). Regmlen is ++ * supplied because the test in regexec() needs it and regcomp() is computing ++ * it anyway. ++ */ ++ ++/* ++ * Structure for regexp "program". This is essentially a linear encoding ++ * of a nondeterministic finite-state machine (aka syntax charts or ++ * "railroad normal form" in parsing technology). Each node is an opcode ++ * plus a "next" pointer, possibly plus an operand. "Next" pointers of ++ * all nodes except BRANCH implement concatenation; a "next" pointer with ++ * a BRANCH on both ends of it is connecting two alternatives. (Here we ++ * have one of the subtle syntax dependencies: an individual BRANCH (as ++ * opposed to a collection of them) is never concatenated with anything ++ * because of operator precedence.) The operand of some types of node is ++ * a literal string; for others, it is a node leading into a sub-FSM. In ++ * particular, the operand of a BRANCH node is the first node of the branch. ++ * (NB this is *not* a tree structure: the tail of the branch connects ++ * to the thing following the set of BRANCHes.) The opcodes are: ++ */ ++ ++/* definition number opnd? meaning */ ++#define END 0 /* no End of program. */ ++#define BOL 1 /* no Match "" at beginning of line. */ ++#define EOL 2 /* no Match "" at end of line. */ ++#define ANY 3 /* no Match any one character. */ ++#define ANYOF 4 /* str Match any character in this string. */ ++#define ANYBUT 5 /* str Match any character not in this string. */ ++#define BRANCH 6 /* node Match this alternative, or the next... */ ++#define BACK 7 /* no Match "", "next" ptr points backward. */ ++#define EXACTLY 8 /* str Match this string. */ ++#define NOTHING 9 /* no Match empty string. */ ++#define STAR 10 /* node Match this (simple) thing 0 or more times. */ ++#define PLUS 11 /* node Match this (simple) thing 1 or more times. */ ++#define OPEN 20 /* no Mark this point in input as start of #n. */ ++ /* OPEN+1 is number 1, etc. */ ++#define CLOSE 30 /* no Analogous to OPEN. */ ++ ++/* ++ * Opcode notes: ++ * ++ * BRANCH The set of branches constituting a single choice are hooked ++ * together with their "next" pointers, since precedence prevents ++ * anything being concatenated to any individual branch. The ++ * "next" pointer of the last BRANCH in a choice points to the ++ * thing following the whole choice. This is also where the ++ * final "next" pointer of each individual branch points; each ++ * branch starts with the operand node of a BRANCH node. ++ * ++ * BACK Normal "next" pointers all implicitly point forward; BACK ++ * exists to make loop structures possible. ++ * ++ * STAR,PLUS '?', and complex '*' and '+', are implemented as circular ++ * BRANCH structures using BACK. Simple cases (one character ++ * per match) are implemented with STAR and PLUS for speed ++ * and to minimize recursive plunges. ++ * ++ * OPEN,CLOSE ...are numbered at compile time. ++ */ ++ ++/* ++ * A node is one char of opcode followed by two chars of "next" pointer. ++ * "Next" pointers are stored as two 8-bit pieces, high order first. The ++ * value is a positive offset from the opcode of the node containing it. ++ * An operand, if any, simply follows the node. (Note that much of the ++ * code generation knows about this implicit relationship.) ++ * ++ * Using two bytes for the "next" pointer is vast overkill for most things, ++ * but allows patterns to get big without disasters. ++ */ ++#define OP(p) (*(p)) ++#define NEXT(p) (((*((p)+1)&0377)<<8) + (*((p)+2)&0377)) ++#define OPERAND(p) ((p) + 3) ++ ++/* ++ * See regmagic.h for one further detail of program structure. ++ */ ++ ++ ++/* ++ * Utility definitions. ++ */ ++#ifndef CHARBITS ++#define UCHARAT(p) ((int)*(unsigned char *)(p)) ++#else ++#define UCHARAT(p) ((int)*(p)&CHARBITS) ++#endif ++ ++#define FAIL(m) { regerror(m); return(NULL); } ++#define ISMULT(c) ((c) == '*' || (c) == '+' || (c) == '?') ++#define META "^$.[()|?+*\\" ++ ++/* ++ * Flags to be passed up and down. ++ */ ++#define HASWIDTH 01 /* Known never to match null string. */ ++#define SIMPLE 02 /* Simple enough to be STAR/PLUS operand. */ ++#define SPSTART 04 /* Starts with * or +. */ ++#define WORST 0 /* Worst case. */ ++ ++/* ++ * Global work variables for regcomp(). ++ */ ++struct match_globals { ++char *reginput; /* String-input pointer. */ ++char *regbol; /* Beginning of input, for ^ check. */ ++char **regstartp; /* Pointer to startp array. */ ++char **regendp; /* Ditto for endp. */ ++char *regparse; /* Input-scan pointer. */ ++int regnpar; /* () count. */ ++char regdummy; ++char *regcode; /* Code-emit pointer; ®dummy = don't. */ ++long regsize; /* Code size. */ ++}; ++ ++/* ++ * Forward declarations for regcomp()'s friends. ++ */ ++#ifndef STATIC ++#define STATIC static ++#endif ++STATIC char *reg(struct match_globals *g, int paren,int *flagp); ++STATIC char *regbranch(struct match_globals *g, int *flagp); ++STATIC char *regpiece(struct match_globals *g, int *flagp); ++STATIC char *regatom(struct match_globals *g, int *flagp); ++STATIC char *regnode(struct match_globals *g, char op); ++STATIC char *regnext(struct match_globals *g, char *p); ++STATIC void regc(struct match_globals *g, char b); ++STATIC void reginsert(struct match_globals *g, char op, char *opnd); ++STATIC void regtail(struct match_globals *g, char *p, char *val); ++STATIC void regoptail(struct match_globals *g, char *p, char *val); ++ ++ ++__kernel_size_t my_strcspn(const char *s1,const char *s2) ++{ ++ char *scan1; ++ char *scan2; ++ int count; ++ ++ count = 0; ++ for (scan1 = (char *)s1; *scan1 != '\0'; scan1++) { ++ for (scan2 = (char *)s2; *scan2 != '\0';) /* ++ moved down. */ ++ if (*scan1 == *scan2++) ++ return(count); ++ count++; ++ } ++ return(count); ++} ++ ++/* ++ - regcomp - compile a regular expression into internal code ++ * ++ * We can't allocate space until we know how big the compiled form will be, ++ * but we can't compile it (and thus know how big it is) until we've got a ++ * place to put the code. So we cheat: we compile it twice, once with code ++ * generation turned off and size counting turned on, and once "for real". ++ * This also means that we don't allocate space until we are sure that the ++ * thing really will compile successfully, and we never have to move the ++ * code and thus invalidate pointers into it. (Note that it has to be in ++ * one piece because free() must be able to free it all.) ++ * ++ * Beware that the optimization-preparation code in here knows about some ++ * of the structure of the compiled regexp. ++ */ ++regexp * ++regcomp(char *exp,int *patternsize) ++{ ++ register regexp *r; ++ register char *scan; ++ register char *longest; ++ register int len; ++ int flags; ++ struct match_globals g; ++ ++ /* commented out by ethan ++ extern char *malloc(); ++ */ ++ ++ if (exp == NULL) ++ FAIL("NULL argument"); ++ ++ /* First pass: determine size, legality. */ ++ g.regparse = exp; ++ g.regnpar = 1; ++ g.regsize = 0L; ++ g.regcode = &g.regdummy; ++ regc(&g, MAGIC); ++ if (reg(&g, 0, &flags) == NULL) ++ return(NULL); ++ ++ /* Small enough for pointer-storage convention? */ ++ if (g.regsize >= 32767L) /* Probably could be 65535L. */ ++ FAIL("regexp too big"); ++ ++ /* Allocate space. */ ++ *patternsize=sizeof(regexp) + (unsigned)g.regsize; ++ r = (regexp *)malloc(sizeof(regexp) + (unsigned)g.regsize); ++ if (r == NULL) ++ FAIL("out of space"); ++ ++ /* Second pass: emit code. */ ++ g.regparse = exp; ++ g.regnpar = 1; ++ g.regcode = r->program; ++ regc(&g, MAGIC); ++ if (reg(&g, 0, &flags) == NULL) ++ return(NULL); ++ ++ /* Dig out information for optimizations. */ ++ r->regstart = '\0'; /* Worst-case defaults. */ ++ r->reganch = 0; ++ r->regmust = NULL; ++ r->regmlen = 0; ++ scan = r->program+1; /* First BRANCH. */ ++ if (OP(regnext(&g, scan)) == END) { /* Only one top-level choice. */ ++ scan = OPERAND(scan); ++ ++ /* Starting-point info. */ ++ if (OP(scan) == EXACTLY) ++ r->regstart = *OPERAND(scan); ++ else if (OP(scan) == BOL) ++ r->reganch++; ++ ++ /* ++ * If there's something expensive in the r.e., find the ++ * longest literal string that must appear and make it the ++ * regmust. Resolve ties in favor of later strings, since ++ * the regstart check works with the beginning of the r.e. ++ * and avoiding duplication strengthens checking. Not a ++ * strong reason, but sufficient in the absence of others. ++ */ ++ if (flags&SPSTART) { ++ longest = NULL; ++ len = 0; ++ for (; scan != NULL; scan = regnext(&g, scan)) ++ if (OP(scan) == EXACTLY && strlen(OPERAND(scan)) >= len) { ++ longest = OPERAND(scan); ++ len = strlen(OPERAND(scan)); ++ } ++ r->regmust = longest; ++ r->regmlen = len; ++ } ++ } ++ ++ return(r); ++} ++ ++/* ++ - reg - regular expression, i.e. main body or parenthesized thing ++ * ++ * Caller must absorb opening parenthesis. ++ * ++ * Combining parenthesis handling with the base level of regular expression ++ * is a trifle forced, but the need to tie the tails of the branches to what ++ * follows makes it hard to avoid. ++ */ ++static char * ++reg(struct match_globals *g, int paren, int *flagp /* Parenthesized? */ ) ++{ ++ register char *ret; ++ register char *br; ++ register char *ender; ++ register int parno = 0; /* 0 makes gcc happy */ ++ int flags; ++ ++ *flagp = HASWIDTH; /* Tentatively. */ ++ ++ /* Make an OPEN node, if parenthesized. */ ++ if (paren) { ++ if (g->regnpar >= NSUBEXP) ++ FAIL("too many ()"); ++ parno = g->regnpar; ++ g->regnpar++; ++ ret = regnode(g, OPEN+parno); ++ } else ++ ret = NULL; ++ ++ /* Pick up the branches, linking them together. */ ++ br = regbranch(g, &flags); ++ if (br == NULL) ++ return(NULL); ++ if (ret != NULL) ++ regtail(g, ret, br); /* OPEN -> first. */ ++ else ++ ret = br; ++ if (!(flags&HASWIDTH)) ++ *flagp &= ~HASWIDTH; ++ *flagp |= flags&SPSTART; ++ while (*g->regparse == '|') { ++ g->regparse++; ++ br = regbranch(g, &flags); ++ if (br == NULL) ++ return(NULL); ++ regtail(g, ret, br); /* BRANCH -> BRANCH. */ ++ if (!(flags&HASWIDTH)) ++ *flagp &= ~HASWIDTH; ++ *flagp |= flags&SPSTART; ++ } ++ ++ /* Make a closing node, and hook it on the end. */ ++ ender = regnode(g, (paren) ? CLOSE+parno : END); ++ regtail(g, ret, ender); ++ ++ /* Hook the tails of the branches to the closing node. */ ++ for (br = ret; br != NULL; br = regnext(g, br)) ++ regoptail(g, br, ender); ++ ++ /* Check for proper termination. */ ++ if (paren && *g->regparse++ != ')') { ++ FAIL("unmatched ()"); ++ } else if (!paren && *g->regparse != '\0') { ++ if (*g->regparse == ')') { ++ FAIL("unmatched ()"); ++ } else ++ FAIL("junk on end"); /* "Can't happen". */ ++ /* NOTREACHED */ ++ } ++ ++ return(ret); ++} ++ ++/* ++ - regbranch - one alternative of an | operator ++ * ++ * Implements the concatenation operator. ++ */ ++static char * ++regbranch(struct match_globals *g, int *flagp) ++{ ++ register char *ret; ++ register char *chain; ++ register char *latest; ++ int flags; ++ ++ *flagp = WORST; /* Tentatively. */ ++ ++ ret = regnode(g, BRANCH); ++ chain = NULL; ++ while (*g->regparse != '\0' && *g->regparse != '|' && *g->regparse != ')') { ++ latest = regpiece(g, &flags); ++ if (latest == NULL) ++ return(NULL); ++ *flagp |= flags&HASWIDTH; ++ if (chain == NULL) /* First piece. */ ++ *flagp |= flags&SPSTART; ++ else ++ regtail(g, chain, latest); ++ chain = latest; ++ } ++ if (chain == NULL) /* Loop ran zero times. */ ++ (void) regnode(g, NOTHING); ++ ++ return(ret); ++} ++ ++/* ++ - regpiece - something followed by possible [*+?] ++ * ++ * Note that the branching code sequences used for ? and the general cases ++ * of * and + are somewhat optimized: they use the same NOTHING node as ++ * both the endmarker for their branch list and the body of the last branch. ++ * It might seem that this node could be dispensed with entirely, but the ++ * endmarker role is not redundant. ++ */ ++static char * ++regpiece(struct match_globals *g, int *flagp) ++{ ++ register char *ret; ++ register char op; ++ register char *next; ++ int flags; ++ ++ ret = regatom(g, &flags); ++ if (ret == NULL) ++ return(NULL); ++ ++ op = *g->regparse; ++ if (!ISMULT(op)) { ++ *flagp = flags; ++ return(ret); ++ } ++ ++ if (!(flags&HASWIDTH) && op != '?') ++ FAIL("*+ operand could be empty"); ++ *flagp = (op != '+') ? (WORST|SPSTART) : (WORST|HASWIDTH); ++ ++ if (op == '*' && (flags&SIMPLE)) ++ reginsert(g, STAR, ret); ++ else if (op == '*') { ++ /* Emit x* as (x&|), where & means "self". */ ++ reginsert(g, BRANCH, ret); /* Either x */ ++ regoptail(g, ret, regnode(g, BACK)); /* and loop */ ++ regoptail(g, ret, ret); /* back */ ++ regtail(g, ret, regnode(g, BRANCH)); /* or */ ++ regtail(g, ret, regnode(g, NOTHING)); /* null. */ ++ } else if (op == '+' && (flags&SIMPLE)) ++ reginsert(g, PLUS, ret); ++ else if (op == '+') { ++ /* Emit x+ as x(&|), where & means "self". */ ++ next = regnode(g, BRANCH); /* Either */ ++ regtail(g, ret, next); ++ regtail(g, regnode(g, BACK), ret); /* loop back */ ++ regtail(g, next, regnode(g, BRANCH)); /* or */ ++ regtail(g, ret, regnode(g, NOTHING)); /* null. */ ++ } else if (op == '?') { ++ /* Emit x? as (x|) */ ++ reginsert(g, BRANCH, ret); /* Either x */ ++ regtail(g, ret, regnode(g, BRANCH)); /* or */ ++ next = regnode(g, NOTHING); /* null. */ ++ regtail(g, ret, next); ++ regoptail(g, ret, next); ++ } ++ g->regparse++; ++ if (ISMULT(*g->regparse)) ++ FAIL("nested *?+"); ++ ++ return(ret); ++} ++ ++/* ++ - regatom - the lowest level ++ * ++ * Optimization: gobbles an entire sequence of ordinary characters so that ++ * it can turn them into a single node, which is smaller to store and ++ * faster to run. Backslashed characters are exceptions, each becoming a ++ * separate node; the code is simpler that way and it's not worth fixing. ++ */ ++static char * ++regatom(struct match_globals *g, int *flagp) ++{ ++ register char *ret; ++ int flags; ++ ++ *flagp = WORST; /* Tentatively. */ ++ ++ switch (*g->regparse++) { ++ case '^': ++ ret = regnode(g, BOL); ++ break; ++ case '$': ++ ret = regnode(g, EOL); ++ break; ++ case '.': ++ ret = regnode(g, ANY); ++ *flagp |= HASWIDTH|SIMPLE; ++ break; ++ case '[': { ++ register int class; ++ register int classend; ++ ++ if (*g->regparse == '^') { /* Complement of range. */ ++ ret = regnode(g, ANYBUT); ++ g->regparse++; ++ } else ++ ret = regnode(g, ANYOF); ++ if (*g->regparse == ']' || *g->regparse == '-') ++ regc(g, *g->regparse++); ++ while (*g->regparse != '\0' && *g->regparse != ']') { ++ if (*g->regparse == '-') { ++ g->regparse++; ++ if (*g->regparse == ']' || *g->regparse == '\0') ++ regc(g, '-'); ++ else { ++ class = UCHARAT(g->regparse-2)+1; ++ classend = UCHARAT(g->regparse); ++ if (class > classend+1) ++ FAIL("invalid [] range"); ++ for (; class <= classend; class++) ++ regc(g, class); ++ g->regparse++; ++ } ++ } else ++ regc(g, *g->regparse++); ++ } ++ regc(g, '\0'); ++ if (*g->regparse != ']') ++ FAIL("unmatched []"); ++ g->regparse++; ++ *flagp |= HASWIDTH|SIMPLE; ++ } ++ break; ++ case '(': ++ ret = reg(g, 1, &flags); ++ if (ret == NULL) ++ return(NULL); ++ *flagp |= flags&(HASWIDTH|SPSTART); ++ break; ++ case '\0': ++ case '|': ++ case ')': ++ FAIL("internal urp"); /* Supposed to be caught earlier. */ ++ break; ++ case '?': ++ case '+': ++ case '*': ++ FAIL("?+* follows nothing"); ++ break; ++ case '\\': ++ if (*g->regparse == '\0') ++ FAIL("trailing \\"); ++ ret = regnode(g, EXACTLY); ++ regc(g, *g->regparse++); ++ regc(g, '\0'); ++ *flagp |= HASWIDTH|SIMPLE; ++ break; ++ default: { ++ register int len; ++ register char ender; ++ ++ g->regparse--; ++ len = my_strcspn((const char *)g->regparse, (const char *)META); ++ if (len <= 0) ++ FAIL("internal disaster"); ++ ender = *(g->regparse+len); ++ if (len > 1 && ISMULT(ender)) ++ len--; /* Back off clear of ?+* operand. */ ++ *flagp |= HASWIDTH; ++ if (len == 1) ++ *flagp |= SIMPLE; ++ ret = regnode(g, EXACTLY); ++ while (len > 0) { ++ regc(g, *g->regparse++); ++ len--; ++ } ++ regc(g, '\0'); ++ } ++ break; ++ } ++ ++ return(ret); ++} ++ ++/* ++ - regnode - emit a node ++ */ ++static char * /* Location. */ ++regnode(struct match_globals *g, char op) ++{ ++ register char *ret; ++ register char *ptr; ++ ++ ret = g->regcode; ++ if (ret == &g->regdummy) { ++ g->regsize += 3; ++ return(ret); ++ } ++ ++ ptr = ret; ++ *ptr++ = op; ++ *ptr++ = '\0'; /* Null "next" pointer. */ ++ *ptr++ = '\0'; ++ g->regcode = ptr; ++ ++ return(ret); ++} ++ ++/* ++ - regc - emit (if appropriate) a byte of code ++ */ ++static void ++regc(struct match_globals *g, char b) ++{ ++ if (g->regcode != &g->regdummy) ++ *g->regcode++ = b; ++ else ++ g->regsize++; ++} ++ ++/* ++ - reginsert - insert an operator in front of already-emitted operand ++ * ++ * Means relocating the operand. ++ */ ++static void ++reginsert(struct match_globals *g, char op, char* opnd) ++{ ++ register char *src; ++ register char *dst; ++ register char *place; ++ ++ if (g->regcode == &g->regdummy) { ++ g->regsize += 3; ++ return; ++ } ++ ++ src = g->regcode; ++ g->regcode += 3; ++ dst = g->regcode; ++ while (src > opnd) ++ *--dst = *--src; ++ ++ place = opnd; /* Op node, where operand used to be. */ ++ *place++ = op; ++ *place++ = '\0'; ++ *place++ = '\0'; ++} ++ ++/* ++ - regtail - set the next-pointer at the end of a node chain ++ */ ++static void ++regtail(struct match_globals *g, char *p, char *val) ++{ ++ register char *scan; ++ register char *temp; ++ register int offset; ++ ++ if (p == &g->regdummy) ++ return; ++ ++ /* Find last node. */ ++ scan = p; ++ for (;;) { ++ temp = regnext(g, scan); ++ if (temp == NULL) ++ break; ++ scan = temp; ++ } ++ ++ if (OP(scan) == BACK) ++ offset = scan - val; ++ else ++ offset = val - scan; ++ *(scan+1) = (offset>>8)&0377; ++ *(scan+2) = offset&0377; ++} ++ ++/* ++ - regoptail - regtail on operand of first argument; nop if operandless ++ */ ++static void ++regoptail(struct match_globals *g, char *p, char *val) ++{ ++ /* "Operandless" and "op != BRANCH" are synonymous in practice. */ ++ if (p == NULL || p == &g->regdummy || OP(p) != BRANCH) ++ return; ++ regtail(g, OPERAND(p), val); ++} ++ ++/* ++ * regexec and friends ++ */ ++ ++ ++/* ++ * Forwards. ++ */ ++STATIC int regtry(struct match_globals *g, regexp *prog, char *string); ++STATIC int regmatch(struct match_globals *g, char *prog); ++STATIC int regrepeat(struct match_globals *g, char *p); ++ ++#ifdef DEBUG ++int regnarrate = 0; ++void regdump(); ++STATIC char *regprop(char *op); ++#endif ++ ++/* ++ - regexec - match a regexp against a string ++ */ ++int ++regexec(regexp *prog, char *string) ++{ ++ register char *s; ++ struct match_globals g; ++ ++ /* Be paranoid... */ ++ if (prog == NULL || string == NULL) { ++ printk("<3>Regexp: NULL parameter\n"); ++ return(0); ++ } ++ ++ /* Check validity of program. */ ++ if (UCHARAT(prog->program) != MAGIC) { ++ printk("<3>Regexp: corrupted program\n"); ++ return(0); ++ } ++ ++ /* If there is a "must appear" string, look for it. */ ++ if (prog->regmust != NULL) { ++ s = string; ++ while ((s = strchr(s, prog->regmust[0])) != NULL) { ++ if (strncmp(s, prog->regmust, prog->regmlen) == 0) ++ break; /* Found it. */ ++ s++; ++ } ++ if (s == NULL) /* Not present. */ ++ return(0); ++ } ++ ++ /* Mark beginning of line for ^ . */ ++ g.regbol = string; ++ ++ /* Simplest case: anchored match need be tried only once. */ ++ if (prog->reganch) ++ return(regtry(&g, prog, string)); ++ ++ /* Messy cases: unanchored match. */ ++ s = string; ++ if (prog->regstart != '\0') ++ /* We know what char it must start with. */ ++ while ((s = strchr(s, prog->regstart)) != NULL) { ++ if (regtry(&g, prog, s)) ++ return(1); ++ s++; ++ } ++ else ++ /* We don't -- general case. */ ++ do { ++ if (regtry(&g, prog, s)) ++ return(1); ++ } while (*s++ != '\0'); ++ ++ /* Failure. */ ++ return(0); ++} ++ ++/* ++ - regtry - try match at specific point ++ */ ++static int /* 0 failure, 1 success */ ++regtry(struct match_globals *g, regexp *prog, char *string) ++{ ++ register int i; ++ register char **sp; ++ register char **ep; ++ ++ g->reginput = string; ++ g->regstartp = prog->startp; ++ g->regendp = prog->endp; ++ ++ sp = prog->startp; ++ ep = prog->endp; ++ for (i = NSUBEXP; i > 0; i--) { ++ *sp++ = NULL; ++ *ep++ = NULL; ++ } ++ if (regmatch(g, prog->program + 1)) { ++ prog->startp[0] = string; ++ prog->endp[0] = g->reginput; ++ return(1); ++ } else ++ return(0); ++} ++ ++/* ++ - regmatch - main matching routine ++ * ++ * Conceptually the strategy is simple: check to see whether the current ++ * node matches, call self recursively to see whether the rest matches, ++ * and then act accordingly. In practice we make some effort to avoid ++ * recursion, in particular by going through "ordinary" nodes (that don't ++ * need to know whether the rest of the match failed) by a loop instead of ++ * by recursion. ++ */ ++static int /* 0 failure, 1 success */ ++regmatch(struct match_globals *g, char *prog) ++{ ++ register char *scan = prog; /* Current node. */ ++ char *next; /* Next node. */ ++ ++#ifdef DEBUG ++ if (scan != NULL && regnarrate) ++ fprintf(stderr, "%s(\n", regprop(scan)); ++#endif ++ while (scan != NULL) { ++#ifdef DEBUG ++ if (regnarrate) ++ fprintf(stderr, "%s...\n", regprop(scan)); ++#endif ++ next = regnext(g, scan); ++ ++ switch (OP(scan)) { ++ case BOL: ++ if (g->reginput != g->regbol) ++ return(0); ++ break; ++ case EOL: ++ if (*g->reginput != '\0') ++ return(0); ++ break; ++ case ANY: ++ if (*g->reginput == '\0') ++ return(0); ++ g->reginput++; ++ break; ++ case EXACTLY: { ++ register int len; ++ register char *opnd; ++ ++ opnd = OPERAND(scan); ++ /* Inline the first character, for speed. */ ++ if (*opnd != *g->reginput) ++ return(0); ++ len = strlen(opnd); ++ if (len > 1 && strncmp(opnd, g->reginput, len) != 0) ++ return(0); ++ g->reginput += len; ++ } ++ break; ++ case ANYOF: ++ if (*g->reginput == '\0' || strchr(OPERAND(scan), *g->reginput) == NULL) ++ return(0); ++ g->reginput++; ++ break; ++ case ANYBUT: ++ if (*g->reginput == '\0' || strchr(OPERAND(scan), *g->reginput) != NULL) ++ return(0); ++ g->reginput++; ++ break; ++ case NOTHING: ++ case BACK: ++ break; ++ case OPEN+1: ++ case OPEN+2: ++ case OPEN+3: ++ case OPEN+4: ++ case OPEN+5: ++ case OPEN+6: ++ case OPEN+7: ++ case OPEN+8: ++ case OPEN+9: { ++ register int no; ++ register char *save; ++ ++ no = OP(scan) - OPEN; ++ save = g->reginput; ++ ++ if (regmatch(g, next)) { ++ /* ++ * Don't set startp if some later ++ * invocation of the same parentheses ++ * already has. ++ */ ++ if (g->regstartp[no] == NULL) ++ g->regstartp[no] = save; ++ return(1); ++ } else ++ return(0); ++ } ++ break; ++ case CLOSE+1: ++ case CLOSE+2: ++ case CLOSE+3: ++ case CLOSE+4: ++ case CLOSE+5: ++ case CLOSE+6: ++ case CLOSE+7: ++ case CLOSE+8: ++ case CLOSE+9: ++ { ++ register int no; ++ register char *save; ++ ++ no = OP(scan) - CLOSE; ++ save = g->reginput; ++ ++ if (regmatch(g, next)) { ++ /* ++ * Don't set endp if some later ++ * invocation of the same parentheses ++ * already has. ++ */ ++ if (g->regendp[no] == NULL) ++ g->regendp[no] = save; ++ return(1); ++ } else ++ return(0); ++ } ++ break; ++ case BRANCH: { ++ register char *save; ++ ++ if (OP(next) != BRANCH) /* No choice. */ ++ next = OPERAND(scan); /* Avoid recursion. */ ++ else { ++ do { ++ save = g->reginput; ++ if (regmatch(g, OPERAND(scan))) ++ return(1); ++ g->reginput = save; ++ scan = regnext(g, scan); ++ } while (scan != NULL && OP(scan) == BRANCH); ++ return(0); ++ /* NOTREACHED */ ++ } ++ } ++ break; ++ case STAR: ++ case PLUS: { ++ register char nextch; ++ register int no; ++ register char *save; ++ register int min; ++ ++ /* ++ * Lookahead to avoid useless match attempts ++ * when we know what character comes next. ++ */ ++ nextch = '\0'; ++ if (OP(next) == EXACTLY) ++ nextch = *OPERAND(next); ++ min = (OP(scan) == STAR) ? 0 : 1; ++ save = g->reginput; ++ no = regrepeat(g, OPERAND(scan)); ++ while (no >= min) { ++ /* If it could work, try it. */ ++ if (nextch == '\0' || *g->reginput == nextch) ++ if (regmatch(g, next)) ++ return(1); ++ /* Couldn't or didn't -- back up. */ ++ no--; ++ g->reginput = save + no; ++ } ++ return(0); ++ } ++ break; ++ case END: ++ return(1); /* Success! */ ++ break; ++ default: ++ printk("<3>Regexp: memory corruption\n"); ++ return(0); ++ break; ++ } ++ ++ scan = next; ++ } ++ ++ /* ++ * We get here only if there's trouble -- normally "case END" is ++ * the terminating point. ++ */ ++ printk("<3>Regexp: corrupted pointers\n"); ++ return(0); ++} ++ ++/* ++ - regrepeat - repeatedly match something simple, report how many ++ */ ++static int ++regrepeat(struct match_globals *g, char *p) ++{ ++ register int count = 0; ++ register char *scan; ++ register char *opnd; ++ ++ scan = g->reginput; ++ opnd = OPERAND(p); ++ switch (OP(p)) { ++ case ANY: ++ count = strlen(scan); ++ scan += count; ++ break; ++ case EXACTLY: ++ while (*opnd == *scan) { ++ count++; ++ scan++; ++ } ++ break; ++ case ANYOF: ++ while (*scan != '\0' && strchr(opnd, *scan) != NULL) { ++ count++; ++ scan++; ++ } ++ break; ++ case ANYBUT: ++ while (*scan != '\0' && strchr(opnd, *scan) == NULL) { ++ count++; ++ scan++; ++ } ++ break; ++ default: /* Oh dear. Called inappropriately. */ ++ printk("<3>Regexp: internal foulup\n"); ++ count = 0; /* Best compromise. */ ++ break; ++ } ++ g->reginput = scan; ++ ++ return(count); ++} ++ ++/* ++ - regnext - dig the "next" pointer out of a node ++ */ ++static char* ++regnext(struct match_globals *g, char *p) ++{ ++ register int offset; ++ ++ if (p == &g->regdummy) ++ return(NULL); ++ ++ offset = NEXT(p); ++ if (offset == 0) ++ return(NULL); ++ ++ if (OP(p) == BACK) ++ return(p-offset); ++ else ++ return(p+offset); ++} ++ ++#ifdef DEBUG ++ ++STATIC char *regprop(); ++ ++/* ++ - regdump - dump a regexp onto stdout in vaguely comprehensible form ++ */ ++void ++regdump(regexp *r) ++{ ++ register char *s; ++ register char op = EXACTLY; /* Arbitrary non-END op. */ ++ register char *next; ++ /* extern char *strchr(); */ ++ ++ ++ s = r->program + 1; ++ while (op != END) { /* While that wasn't END last time... */ ++ op = OP(s); ++ printf("%2d%s", s-r->program, regprop(s)); /* Where, what. */ ++ next = regnext(s); ++ if (next == NULL) /* Next ptr. */ ++ printf("(0)"); ++ else ++ printf("(%d)", (s-r->program)+(next-s)); ++ s += 3; ++ if (op == ANYOF || op == ANYBUT || op == EXACTLY) { ++ /* Literal string, where present. */ ++ while (*s != '\0') { ++ putchar(*s); ++ s++; ++ } ++ s++; ++ } ++ putchar('\n'); ++ } ++ ++ /* Header fields of interest. */ ++ if (r->regstart != '\0') ++ printf("start `%c' ", r->regstart); ++ if (r->reganch) ++ printf("anchored "); ++ if (r->regmust != NULL) ++ printf("must have \"%s\"", r->regmust); ++ printf("\n"); ++} ++ ++/* ++ - regprop - printable representation of opcode ++ */ ++static char * ++regprop(char *op) ++{ ++#define BUFLEN 50 ++ register char *p; ++ static char buf[BUFLEN]; ++ ++ strcpy(buf, ":"); ++ ++ switch (OP(op)) { ++ case BOL: ++ p = "BOL"; ++ break; ++ case EOL: ++ p = "EOL"; ++ break; ++ case ANY: ++ p = "ANY"; ++ break; ++ case ANYOF: ++ p = "ANYOF"; ++ break; ++ case ANYBUT: ++ p = "ANYBUT"; ++ break; ++ case BRANCH: ++ p = "BRANCH"; ++ break; ++ case EXACTLY: ++ p = "EXACTLY"; ++ break; ++ case NOTHING: ++ p = "NOTHING"; ++ break; ++ case BACK: ++ p = "BACK"; ++ break; ++ case END: ++ p = "END"; ++ break; ++ case OPEN+1: ++ case OPEN+2: ++ case OPEN+3: ++ case OPEN+4: ++ case OPEN+5: ++ case OPEN+6: ++ case OPEN+7: ++ case OPEN+8: ++ case OPEN+9: ++ snprintf(buf+strlen(buf),BUFLEN-strlen(buf), "OPEN%d", OP(op)-OPEN); ++ p = NULL; ++ break; ++ case CLOSE+1: ++ case CLOSE+2: ++ case CLOSE+3: ++ case CLOSE+4: ++ case CLOSE+5: ++ case CLOSE+6: ++ case CLOSE+7: ++ case CLOSE+8: ++ case CLOSE+9: ++ snprintf(buf+strlen(buf),BUFLEN-strlen(buf), "CLOSE%d", OP(op)-CLOSE); ++ p = NULL; ++ break; ++ case STAR: ++ p = "STAR"; ++ break; ++ case PLUS: ++ p = "PLUS"; ++ break; ++ default: ++ printk("<3>Regexp: corrupted opcode\n"); ++ break; ++ } ++ if (p != NULL) ++ strncat(buf, p, BUFLEN-strlen(buf)); ++ return(buf); ++} ++#endif ++ ++ +--- /dev/null ++++ b/net/netfilter/regexp/regexp.h +@@ -0,0 +1,41 @@ ++/* ++ * Definitions etc. for regexp(3) routines. ++ * ++ * Caveat: this is V8 regexp(3) [actually, a reimplementation thereof], ++ * not the System V one. ++ */ ++ ++#ifndef REGEXP_H ++#define REGEXP_H ++ ++ ++/* ++http://www.opensource.apple.com/darwinsource/10.3/expect-1/expect/expect.h , ++which contains a version of this library, says: ++ ++ * ++ * NSUBEXP must be at least 10, and no greater than 117 or the parser ++ * will not work properly. ++ * ++ ++However, it looks rather like this library is limited to 10. If you think ++otherwise, let us know. ++*/ ++ ++#define NSUBEXP 10 ++typedef struct regexp { ++ char *startp[NSUBEXP]; ++ char *endp[NSUBEXP]; ++ char regstart; /* Internal use only. */ ++ char reganch; /* Internal use only. */ ++ char *regmust; /* Internal use only. */ ++ int regmlen; /* Internal use only. */ ++ char program[1]; /* Unwarranted chumminess with compiler. */ ++} regexp; ++ ++regexp * regcomp(char *exp, int *patternsize); ++int regexec(regexp *prog, char *string); ++void regsub(regexp *prog, char *source, char *dest); ++void regerror(char *s); ++ ++#endif +--- /dev/null ++++ b/net/netfilter/regexp/regmagic.h +@@ -0,0 +1,5 @@ ++/* ++ * The first byte of the regexp internal "program" is actually this magic ++ * number; the start node begins in the second byte. ++ */ ++#define MAGIC 0234 +--- /dev/null ++++ b/net/netfilter/regexp/regsub.c +@@ -0,0 +1,95 @@ ++/* ++ * regsub ++ * @(#)regsub.c 1.3 of 2 April 86 ++ * ++ * Copyright (c) 1986 by University of Toronto. ++ * Written by Henry Spencer. Not derived from licensed software. ++ * ++ * Permission is granted to anyone to use this software for any ++ * purpose on any computer system, and to redistribute it freely, ++ * subject to the following restrictions: ++ * ++ * 1. The author is not responsible for the consequences of use of ++ * this software, no matter how awful, even if they arise ++ * from defects in it. ++ * ++ * 2. The origin of this software must not be misrepresented, either ++ * by explicit claim or by omission. ++ * ++ * 3. Altered versions must be plainly marked as such, and must not ++ * be misrepresented as being the original software. ++ * ++ * ++ * This code was modified by Ethan Sommer to work within the kernel ++ * (it now uses kmalloc etc..) ++ * ++ */ ++#include "regexp.h" ++#include "regmagic.h" ++#include ++ ++ ++#ifndef CHARBITS ++#define UCHARAT(p) ((int)*(unsigned char *)(p)) ++#else ++#define UCHARAT(p) ((int)*(p)&CHARBITS) ++#endif ++ ++#if 0 ++//void regerror(char * s) ++//{ ++// printk("regexp(3): %s", s); ++// /* NOTREACHED */ ++//} ++#endif ++ ++/* ++ - regsub - perform substitutions after a regexp match ++ */ ++void ++regsub(regexp * prog, char * source, char * dest) ++{ ++ register char *src; ++ register char *dst; ++ register char c; ++ register int no; ++ register int len; ++ ++ /* Not necessary and gcc doesn't like it -MLS */ ++ /*extern char *strncpy();*/ ++ ++ if (prog == NULL || source == NULL || dest == NULL) { ++ regerror("NULL parm to regsub"); ++ return; ++ } ++ if (UCHARAT(prog->program) != MAGIC) { ++ regerror("damaged regexp fed to regsub"); ++ return; ++ } ++ ++ src = source; ++ dst = dest; ++ while ((c = *src++) != '\0') { ++ if (c == '&') ++ no = 0; ++ else if (c == '\\' && '0' <= *src && *src <= '9') ++ no = *src++ - '0'; ++ else ++ no = -1; ++ ++ if (no < 0) { /* Ordinary character. */ ++ if (c == '\\' && (*src == '\\' || *src == '&')) ++ c = *src++; ++ *dst++ = c; ++ } else if (prog->startp[no] != NULL && prog->endp[no] != NULL) { ++ len = prog->endp[no] - prog->startp[no]; ++ (void) strncpy(dst, prog->startp[no], len); ++ dst += len; ++ if (len != 0 && *(dst-1) == '\0') { /* strncpy hit NUL. */ ++ regerror("damaged match string"); ++ return; ++ } ++ } ++ } ++ *dst++ = '\0'; ++} +--- a/net/netfilter/nf_conntrack_core.c ++++ b/net/netfilter/nf_conntrack_core.c +@@ -213,6 +213,14 @@ destroy_conntrack(struct nf_conntrack *n + * too. */ + nf_ct_remove_expectations(ct); + ++ #if defined(CONFIG_NETFILTER_XT_MATCH_LAYER7) || defined(CONFIG_NETFILTER_XT_MATCH_LAYER7_MODULE) ++ if(ct->layer7.app_proto) ++ kfree(ct->layer7.app_proto); ++ if(ct->layer7.app_data) ++ kfree(ct->layer7.app_data); ++ #endif ++ ++ + /* We overload first tuple to link into unconfirmed list. */ + if (!nf_ct_is_confirmed(ct)) { + BUG_ON(hlist_nulls_unhashed(&ct->tuplehash[IP_CT_DIR_ORIGINAL].hnnode)); +--- a/net/netfilter/nf_conntrack_standalone.c ++++ b/net/netfilter/nf_conntrack_standalone.c +@@ -239,6 +239,12 @@ static int ct_seq_show(struct seq_file * + if (ct_show_delta_time(s, ct)) + goto release; + ++#if defined(CONFIG_NETFILTER_XT_MATCH_LAYER7) || defined(CONFIG_NETFILTER_XT_MATCH_LAYER7_MODULE) ++ if(ct->layer7.app_proto && ++ seq_printf(s, "l7proto=%s ", ct->layer7.app_proto)) ++ return -ENOSPC; ++#endif ++ + if (seq_printf(s, "use=%u\n", atomic_read(&ct->ct_general.use))) + goto release; + +--- a/include/net/netfilter/nf_conntrack.h ++++ b/include/net/netfilter/nf_conntrack.h +@@ -135,6 +135,22 @@ struct nf_conn { + struct net *ct_net; + #endif + ++#if defined(CONFIG_NETFILTER_XT_MATCH_LAYER7) || \ ++ defined(CONFIG_NETFILTER_XT_MATCH_LAYER7_MODULE) ++ struct { ++ /* ++ * e.g. "http". NULL before decision. "unknown" after decision ++ * if no match. ++ */ ++ char *app_proto; ++ /* ++ * application layer data so far. NULL after match decision. ++ */ ++ char *app_data; ++ unsigned int app_data_len; ++ } layer7; ++#endif ++ + /* Storage reserved for other modules, must be the last member */ + union nf_conntrack_proto proto; + }; +--- /dev/null ++++ b/include/linux/netfilter/xt_layer7.h +@@ -0,0 +1,13 @@ ++#ifndef _XT_LAYER7_H ++#define _XT_LAYER7_H ++ ++#define MAX_PATTERN_LEN 8192 ++#define MAX_PROTOCOL_LEN 256 ++ ++struct xt_layer7_info { ++ char protocol[MAX_PROTOCOL_LEN]; ++ char pattern[MAX_PATTERN_LEN]; ++ u_int8_t invert; ++}; ++ ++#endif /* _XT_LAYER7_H */ diff --git a/target/linux/generic/patches-2.6.39/600-phy_extension.patch b/target/linux/generic/patches-2.6.39/600-phy_extension.patch deleted file mode 100644 index b2d1665ceab..00000000000 --- a/target/linux/generic/patches-2.6.39/600-phy_extension.patch +++ /dev/null @@ -1,72 +0,0 @@ ---- a/drivers/net/phy/phy.c -+++ b/drivers/net/phy/phy.c -@@ -297,6 +297,50 @@ int phy_ethtool_gset(struct phy_device * - } - EXPORT_SYMBOL(phy_ethtool_gset); - -+int phy_ethtool_ioctl(struct phy_device *phydev, void *useraddr) -+{ -+ u32 cmd; -+ int tmp; -+ struct ethtool_cmd ecmd = { ETHTOOL_GSET }; -+ struct ethtool_value edata = { ETHTOOL_GLINK }; -+ -+ if (get_user(cmd, (u32 *) useraddr)) -+ return -EFAULT; -+ -+ switch (cmd) { -+ case ETHTOOL_GSET: -+ phy_ethtool_gset(phydev, &ecmd); -+ if (copy_to_user(useraddr, &ecmd, sizeof(ecmd))) -+ return -EFAULT; -+ return 0; -+ -+ case ETHTOOL_SSET: -+ if (copy_from_user(&ecmd, useraddr, sizeof(ecmd))) -+ return -EFAULT; -+ return phy_ethtool_sset(phydev, &ecmd); -+ -+ case ETHTOOL_NWAY_RST: -+ /* if autoneg is off, it's an error */ -+ tmp = phy_read(phydev, MII_BMCR); -+ if (tmp & BMCR_ANENABLE) { -+ tmp |= (BMCR_ANRESTART); -+ phy_write(phydev, MII_BMCR, tmp); -+ return 0; -+ } -+ return -EINVAL; -+ -+ case ETHTOOL_GLINK: -+ edata.data = (phy_read(phydev, -+ MII_BMSR) & BMSR_LSTATUS) ? 1 : 0; -+ if (copy_to_user(useraddr, &edata, sizeof(edata))) -+ return -EFAULT; -+ return 0; -+ } -+ -+ return -EOPNOTSUPP; -+} -+EXPORT_SYMBOL(phy_ethtool_ioctl); -+ - /** - * phy_mii_ioctl - generic PHY MII ioctl interface - * @phydev: the phy_device struct -@@ -472,7 +516,7 @@ static void phy_force_reduction(struct p - int idx; - - idx = phy_find_setting(phydev->speed, phydev->duplex); -- -+ - idx++; - - idx = phy_find_valid(idx, phydev->supported); ---- a/include/linux/phy.h -+++ b/include/linux/phy.h -@@ -508,6 +508,7 @@ void phy_start_machine(struct phy_device - void phy_stop_machine(struct phy_device *phydev); - int phy_ethtool_sset(struct phy_device *phydev, struct ethtool_cmd *cmd); - int phy_ethtool_gset(struct phy_device *phydev, struct ethtool_cmd *cmd); -+int phy_ethtool_ioctl(struct phy_device *phydev, void *useraddr); - int phy_mii_ioctl(struct phy_device *phydev, - struct ifreq *ifr, int cmd); - int phy_start_interrupts(struct phy_device *phydev); diff --git a/target/linux/generic/patches-2.6.39/601-netfilter_layer7_pktmatch.patch b/target/linux/generic/patches-2.6.39/601-netfilter_layer7_pktmatch.patch new file mode 100644 index 00000000000..f65e301fd1f --- /dev/null +++ b/target/linux/generic/patches-2.6.39/601-netfilter_layer7_pktmatch.patch @@ -0,0 +1,108 @@ +--- a/include/linux/netfilter/xt_layer7.h ++++ b/include/linux/netfilter/xt_layer7.h +@@ -8,6 +8,7 @@ struct xt_layer7_info { + char protocol[MAX_PROTOCOL_LEN]; + char pattern[MAX_PATTERN_LEN]; + u_int8_t invert; ++ u_int8_t pkt; + }; + + #endif /* _XT_LAYER7_H */ +--- a/net/netfilter/xt_layer7.c ++++ b/net/netfilter/xt_layer7.c +@@ -314,33 +314,35 @@ static int match_no_append(struct nf_con + } + + /* add the new app data to the conntrack. Return number of bytes added. */ +-static int add_data(struct nf_conn * master_conntrack, +- char * app_data, int appdatalen) ++static int add_datastr(char *target, int offset, char *app_data, int len) + { + int length = 0, i; +- int oldlength = master_conntrack->layer7.app_data_len; +- +- /* This is a fix for a race condition by Deti Fliegl. However, I'm not +- clear on whether the race condition exists or whether this really +- fixes it. I might just be being dense... Anyway, if it's not really +- a fix, all it does is waste a very small amount of time. */ +- if(!master_conntrack->layer7.app_data) return 0; ++ if (!target) return 0; + + /* Strip nulls. Make everything lower case (our regex lib doesn't + do case insensitivity). Add it to the end of the current data. */ +- for(i = 0; i < maxdatalen-oldlength-1 && +- i < appdatalen; i++) { ++ for(i = 0; i < maxdatalen-offset-1 && i < len; i++) { + if(app_data[i] != '\0') { + /* the kernel version of tolower mungs 'upper ascii' */ +- master_conntrack->layer7.app_data[length+oldlength] = ++ target[length+offset] = + isascii(app_data[i])? + tolower(app_data[i]) : app_data[i]; + length++; + } + } ++ target[length+offset] = '\0'; ++ ++ return length; ++} ++ ++/* add the new app data to the conntrack. Return number of bytes added. */ ++static int add_data(struct nf_conn * master_conntrack, ++ char * app_data, int appdatalen) ++{ ++ int length; + +- master_conntrack->layer7.app_data[length+oldlength] = '\0'; +- master_conntrack->layer7.app_data_len = length + oldlength; ++ length = add_datastr(master_conntrack->layer7.app_data, master_conntrack->layer7.app_data_len, app_data, appdatalen); ++ master_conntrack->layer7.app_data_len += length; + + return length; + } +@@ -438,7 +440,7 @@ match(const struct sk_buff *skbin, + + enum ip_conntrack_info master_ctinfo, ctinfo; + struct nf_conn *master_conntrack, *conntrack; +- unsigned char * app_data; ++ unsigned char *app_data, *tmp_data; + unsigned int pattern_result, appdatalen; + regexp * comppattern; + +@@ -466,8 +468,8 @@ match(const struct sk_buff *skbin, + master_conntrack = master_ct(master_conntrack); + + /* if we've classified it or seen too many packets */ +- if(total_acct_packets(master_conntrack) > num_packets || +- master_conntrack->layer7.app_proto) { ++ if(!info->pkt && (total_acct_packets(master_conntrack) > num_packets || ++ master_conntrack->layer7.app_proto)) { + + pattern_result = match_no_append(conntrack, master_conntrack, + ctinfo, master_ctinfo, info); +@@ -500,6 +502,25 @@ match(const struct sk_buff *skbin, + /* the return value gets checked later, when we're ready to use it */ + comppattern = compile_and_cache(info->pattern, info->protocol); + ++ if (info->pkt) { ++ tmp_data = kmalloc(maxdatalen, GFP_ATOMIC); ++ if(!tmp_data){ ++ if (net_ratelimit()) ++ printk(KERN_ERR "layer7: out of memory in match, bailing.\n"); ++ return info->invert; ++ } ++ ++ tmp_data[0] = '\0'; ++ add_datastr(tmp_data, 0, app_data, appdatalen); ++ pattern_result = ((comppattern && regexec(comppattern, tmp_data)) ? 1 : 0); ++ ++ kfree(tmp_data); ++ tmp_data = NULL; ++ spin_unlock_bh(&l7_lock); ++ ++ return (pattern_result ^ info->invert); ++ } ++ + /* On the first packet of a connection, allocate space for app data */ + if(total_acct_packets(master_conntrack) == 1 && !skb->cb[0] && + !master_conntrack->layer7.app_data){ diff --git a/target/linux/generic/patches-2.6.39/601-phy-add-aneg-done-function.patch b/target/linux/generic/patches-2.6.39/601-phy-add-aneg-done-function.patch deleted file mode 100644 index 776b768431e..00000000000 --- a/target/linux/generic/patches-2.6.39/601-phy-add-aneg-done-function.patch +++ /dev/null @@ -1,45 +0,0 @@ ---- a/include/linux/phy.h -+++ b/include/linux/phy.h -@@ -386,9 +386,18 @@ struct phy_driver { - */ - int (*config_aneg)(struct phy_device *phydev); - -+ /* Determine if autonegotiation is done */ -+ int (*aneg_done)(struct phy_device *phydev); -+ - /* Determines the negotiated speed and duplex */ - int (*read_status)(struct phy_device *phydev); - -+ /* -+ * Update the value in phydev->link to reflect the -+ * current link value -+ */ -+ int (*update_link)(struct phy_device *phydev); -+ - /* Clears any pending interrupts */ - int (*ack_interrupt)(struct phy_device *phydev); - ---- a/drivers/net/phy/phy_device.c -+++ b/drivers/net/phy/phy_device.c -@@ -719,6 +719,9 @@ int genphy_update_link(struct phy_device - { - int status; - -+ if (phydev->drv->update_link) -+ return phydev->drv->update_link(phydev); -+ - /* Do a fake read */ - status = phy_read(phydev, MII_BMSR); - ---- a/drivers/net/phy/phy.c -+++ b/drivers/net/phy/phy.c -@@ -106,6 +106,9 @@ static inline int phy_aneg_done(struct p - { - int retval; - -+ if (phydev->drv->aneg_done) -+ return phydev->drv->aneg_done(phydev); -+ - retval = phy_read(phydev, MII_BMSR); - - return (retval < 0) ? retval : (retval & BMSR_ANEGCOMPLETE); diff --git a/target/linux/generic/patches-2.6.39/602-netfilter_layer7_match.patch b/target/linux/generic/patches-2.6.39/602-netfilter_layer7_match.patch new file mode 100644 index 00000000000..b2e48c824f8 --- /dev/null +++ b/target/linux/generic/patches-2.6.39/602-netfilter_layer7_match.patch @@ -0,0 +1,51 @@ +--- a/net/netfilter/xt_layer7.c ++++ b/net/netfilter/xt_layer7.c +@@ -415,7 +415,9 @@ static int layer7_write_proc(struct file + } + + static bool +-#if LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 28) ++#if LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 35) ++match(const struct sk_buff *skbin, struct xt_action_param *par) ++#elif LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 28) + match(const struct sk_buff *skbin, const struct xt_match_param *par) + #else + match(const struct sk_buff *skbin, +@@ -597,14 +599,19 @@ match(const struct sk_buff *skbin, + } + + // load nf_conntrack_ipv4 ++#if LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 35) ++static int ++#else ++static bool ++#endif + #if LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 28) +-static bool check(const struct xt_mtchk_param *par) ++check(const struct xt_mtchk_param *par) + { + if (nf_ct_l3proto_try_module_get(par->match->family) < 0) { + printk(KERN_WARNING "can't load conntrack support for " + "proto=%d\n", par->match->family); + #else +-static bool check(const char *tablename, const void *inf, ++check(const char *tablename, const void *inf, + const struct xt_match *match, void *matchinfo, + unsigned int hook_mask) + { +@@ -612,9 +619,15 @@ static bool check(const char *tablename, + printk(KERN_WARNING "can't load conntrack support for " + "proto=%d\n", match->family); + #endif ++#if LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 35) ++ return -EINVAL; ++ } ++ return 0; ++#else + return 0; + } + return 1; ++#endif + } + + diff --git a/target/linux/generic/patches-2.6.39/603-netfilter_layer7_2.6.36_fix.patch b/target/linux/generic/patches-2.6.39/603-netfilter_layer7_2.6.36_fix.patch new file mode 100644 index 00000000000..9f4c310d7ea --- /dev/null +++ b/target/linux/generic/patches-2.6.39/603-netfilter_layer7_2.6.36_fix.patch @@ -0,0 +1,61 @@ +--- a/net/netfilter/Kconfig ++++ b/net/netfilter/Kconfig +@@ -832,6 +832,27 @@ config NETFILTER_XT_MATCH_IPVS + + If unsure, say N. + ++config NETFILTER_XT_MATCH_LAYER7 ++ tristate '"layer7" match support' ++ depends on EXPERIMENTAL ++ depends on NETFILTER_XTABLES ++ depends on NETFILTER_ADVANCED ++ depends on NF_CONNTRACK ++ help ++ Say Y if you want to be able to classify connections (and their ++ packets) based on regular expression matching of their application ++ layer data. This is one way to classify applications such as ++ peer-to-peer filesharing systems that do not always use the same ++ port. ++ ++ To compile it as a module, choose M here. If unsure, say N. ++ ++config NETFILTER_XT_MATCH_LAYER7_DEBUG ++ bool 'Layer 7 debugging output' ++ depends on NETFILTER_XT_MATCH_LAYER7 ++ help ++ Say Y to get lots of debugging output. ++ + config NETFILTER_XT_MATCH_LENGTH + tristate '"length" match support' + depends on NETFILTER_ADVANCED +@@ -1018,26 +1039,11 @@ config NETFILTER_XT_MATCH_STATE + + To compile it as a module, choose M here. If unsure, say N. + +-config NETFILTER_XT_MATCH_LAYER7 +- tristate '"layer7" match support' +- depends on NETFILTER_XTABLES +- depends on EXPERIMENTAL && (IP_NF_CONNTRACK || NF_CONNTRACK) +- depends on NETFILTER_ADVANCED +- help +- Say Y if you want to be able to classify connections (and their +- packets) based on regular expression matching of their application +- layer data. This is one way to classify applications such as +- peer-to-peer filesharing systems that do not always use the same +- port. +- +- To compile it as a module, choose M here. If unsure, say N. +- + config NETFILTER_XT_MATCH_LAYER7_DEBUG +- bool 'Layer 7 debugging output' +- depends on NETFILTER_XT_MATCH_LAYER7 +- help +- Say Y to get lots of debugging output. +- ++ bool 'Layer 7 debugging output' ++ depends on NETFILTER_XT_MATCH_LAYER7 ++ help ++ Say Y to get lots of debugging output. + + config NETFILTER_XT_MATCH_STATISTIC + tristate '"statistic" match support' diff --git a/target/linux/generic/patches-2.6.39/604-netfilter_cisco_794x_iphone.patch b/target/linux/generic/patches-2.6.39/604-netfilter_cisco_794x_iphone.patch new file mode 100644 index 00000000000..662a499d179 --- /dev/null +++ b/target/linux/generic/patches-2.6.39/604-netfilter_cisco_794x_iphone.patch @@ -0,0 +1,118 @@ +--- a/include/linux/netfilter/nf_conntrack_sip.h ++++ b/include/linux/netfilter/nf_conntrack_sip.h +@@ -2,12 +2,15 @@ + #define __NF_CONNTRACK_SIP_H__ + #ifdef __KERNEL__ + ++#include ++ + #define SIP_PORT 5060 + #define SIP_TIMEOUT 3600 + + struct nf_ct_sip_master { + unsigned int register_cseq; + unsigned int invite_cseq; ++ __be16 forced_dport; + }; + + enum sip_expectation_classes { +--- a/net/ipv4/netfilter/nf_nat_sip.c ++++ b/net/ipv4/netfilter/nf_nat_sip.c +@@ -73,6 +73,7 @@ static int map_addr(struct sk_buff *skb, + enum ip_conntrack_info ctinfo; + struct nf_conn *ct = nf_ct_get(skb, &ctinfo); + enum ip_conntrack_dir dir = CTINFO2DIR(ctinfo); ++ struct nf_conn_help *help = nfct_help(ct); + char buffer[sizeof("nnn.nnn.nnn.nnn:nnnnn")]; + unsigned int buflen; + __be32 newaddr; +@@ -85,7 +86,8 @@ static int map_addr(struct sk_buff *skb, + } else if (ct->tuplehash[dir].tuple.dst.u3.ip == addr->ip && + ct->tuplehash[dir].tuple.dst.u.udp.port == port) { + newaddr = ct->tuplehash[!dir].tuple.src.u3.ip; +- newport = ct->tuplehash[!dir].tuple.src.u.udp.port; ++ newport = help->help.ct_sip_info.forced_dport ? : ++ ct->tuplehash[!dir].tuple.src.u.udp.port; + } else + return 1; + +@@ -121,6 +123,7 @@ static unsigned int ip_nat_sip(struct sk + enum ip_conntrack_info ctinfo; + struct nf_conn *ct = nf_ct_get(skb, &ctinfo); + enum ip_conntrack_dir dir = CTINFO2DIR(ctinfo); ++ struct nf_conn_help *help = nfct_help(ct); + unsigned int coff, matchoff, matchlen; + enum sip_header_types hdr; + union nf_inet_addr addr; +@@ -229,6 +232,20 @@ next: + !map_sip_addr(skb, dataoff, dptr, datalen, SIP_HDR_TO)) + return NF_DROP; + ++ /* Mangle destination port for Cisco phones, then fix up checksums */ ++ if (dir == IP_CT_DIR_REPLY && help->help.ct_sip_info.forced_dport) { ++ struct udphdr *uh; ++ ++ if (!skb_make_writable(skb, skb->len)) ++ return NF_DROP; ++ ++ uh = (struct udphdr *)(skb->data + ip_hdrlen(skb)); ++ uh->dest = help->help.ct_sip_info.forced_dport; ++ ++ if (!nf_nat_mangle_udp_packet(skb, ct, ctinfo, 0, 0, NULL, 0)) ++ return NF_DROP; ++ } ++ + return NF_ACCEPT; + } + +@@ -280,8 +297,10 @@ static unsigned int ip_nat_sip_expect(st + enum ip_conntrack_info ctinfo; + struct nf_conn *ct = nf_ct_get(skb, &ctinfo); + enum ip_conntrack_dir dir = CTINFO2DIR(ctinfo); ++ struct nf_conn_help *help = nfct_help(ct); + __be32 newip; + u_int16_t port; ++ __be16 srcport; + char buffer[sizeof("nnn.nnn.nnn.nnn:nnnnn")]; + unsigned buflen; + +@@ -294,8 +313,9 @@ static unsigned int ip_nat_sip_expect(st + /* If the signalling port matches the connection's source port in the + * original direction, try to use the destination port in the opposite + * direction. */ +- if (exp->tuple.dst.u.udp.port == +- ct->tuplehash[dir].tuple.src.u.udp.port) ++ srcport = help->help.ct_sip_info.forced_dport ? : ++ ct->tuplehash[dir].tuple.src.u.udp.port; ++ if (exp->tuple.dst.u.udp.port == srcport) + port = ntohs(ct->tuplehash[!dir].tuple.dst.u.udp.port); + else + port = ntohs(exp->tuple.dst.u.udp.port); +--- a/net/netfilter/nf_conntrack_sip.c ++++ b/net/netfilter/nf_conntrack_sip.c +@@ -1363,8 +1363,25 @@ static int process_sip_request(struct sk + { + enum ip_conntrack_info ctinfo; + struct nf_conn *ct = nf_ct_get(skb, &ctinfo); ++ struct nf_conn_help *help = nfct_help(ct); ++ enum ip_conntrack_dir dir = CTINFO2DIR(ctinfo); + unsigned int matchoff, matchlen; + unsigned int cseq, i; ++ union nf_inet_addr addr; ++ __be16 port; ++ ++ /* Many Cisco IP phones use a high source port for SIP requests, but ++ * listen for the response on port 5060. If we are the local ++ * router for one of these phones, save the port number from the ++ * Via: header so that nf_nat_sip can redirect the responses to ++ * the correct port. ++ */ ++ if (ct_sip_parse_header_uri(ct, *dptr, NULL, *datalen, ++ SIP_HDR_VIA_UDP, NULL, &matchoff, ++ &matchlen, &addr, &port) > 0 && ++ port != ct->tuplehash[dir].tuple.src.u.udp.port && ++ nf_inet_addr_cmp(&addr, &ct->tuplehash[dir].tuple.src.u3)) ++ help->help.ct_sip_info.forced_dport = port; + + for (i = 0; i < ARRAY_SIZE(sip_handlers); i++) { + const struct sip_handler *handler; diff --git a/target/linux/generic/patches-2.6.39/605-netfilter_rtsp.patch b/target/linux/generic/patches-2.6.39/605-netfilter_rtsp.patch new file mode 100644 index 00000000000..ead213a4f9e --- /dev/null +++ b/target/linux/generic/patches-2.6.39/605-netfilter_rtsp.patch @@ -0,0 +1,1366 @@ +--- /dev/null ++++ b/include/linux/netfilter/nf_conntrack_rtsp.h +@@ -0,0 +1,63 @@ ++/* ++ * RTSP extension for IP connection tracking. ++ * (C) 2003 by Tom Marshall ++ * based on ip_conntrack_irc.h ++ * ++ * This program is free software; you can redistribute it and/or ++ * modify it under the terms of the GNU General Public License ++ * as published by the Free Software Foundation; either version ++ * 2 of the License, or (at your option) any later version. ++ */ ++#ifndef _IP_CONNTRACK_RTSP_H ++#define _IP_CONNTRACK_RTSP_H ++ ++//#define IP_NF_RTSP_DEBUG 1 ++#define IP_NF_RTSP_VERSION "0.6.21" ++ ++#ifdef __KERNEL__ ++/* port block types */ ++typedef enum { ++ pb_single, /* client_port=x */ ++ pb_range, /* client_port=x-y */ ++ pb_discon /* client_port=x/y (rtspbis) */ ++} portblock_t; ++ ++/* We record seq number and length of rtsp headers here, all in host order. */ ++ ++/* ++ * This structure is per expected connection. It is a member of struct ++ * ip_conntrack_expect. The TCP SEQ for the conntrack expect is stored ++ * there and we are expected to only store the length of the data which ++ * needs replaced. If a packet contains multiple RTSP messages, we create ++ * one expected connection per message. ++ * ++ * We use these variables to mark the entire header block. This may seem ++ * like overkill, but the nature of RTSP requires it. A header may appear ++ * multiple times in a message. We must treat two Transport headers the ++ * same as one Transport header with two entries. ++ */ ++struct ip_ct_rtsp_expect ++{ ++ u_int32_t len; /* length of header block */ ++ portblock_t pbtype; /* Type of port block that was requested */ ++ u_int16_t loport; /* Port that was requested, low or first */ ++ u_int16_t hiport; /* Port that was requested, high or second */ ++#if 0 ++ uint method; /* RTSP method */ ++ uint cseq; /* CSeq from request */ ++#endif ++}; ++ ++extern unsigned int (*nf_nat_rtsp_hook)(struct sk_buff *skb, ++ enum ip_conntrack_info ctinfo, ++ unsigned int matchoff, unsigned int matchlen, ++ struct ip_ct_rtsp_expect *prtspexp, ++ struct nf_conntrack_expect *exp); ++ ++extern void (*nf_nat_rtsp_hook_expectfn)(struct nf_conn *ct, struct nf_conntrack_expect *exp); ++ ++#define RTSP_PORT 554 ++ ++#endif /* __KERNEL__ */ ++ ++#endif /* _IP_CONNTRACK_RTSP_H */ +--- /dev/null ++++ b/include/linux/netfilter_helpers.h +@@ -0,0 +1,133 @@ ++/* ++ * Helpers for netfiler modules. This file provides implementations for basic ++ * functions such as strncasecmp(), etc. ++ * ++ * gcc will warn for defined but unused functions, so we only include the ++ * functions requested. The following macros are used: ++ * NF_NEED_STRNCASECMP nf_strncasecmp() ++ * NF_NEED_STRTOU16 nf_strtou16() ++ * NF_NEED_STRTOU32 nf_strtou32() ++ */ ++#ifndef _NETFILTER_HELPERS_H ++#define _NETFILTER_HELPERS_H ++ ++/* Only include these functions for kernel code. */ ++#ifdef __KERNEL__ ++ ++#include ++#define iseol(c) ( (c) == '\r' || (c) == '\n' ) ++ ++/* ++ * The standard strncasecmp() ++ */ ++#ifdef NF_NEED_STRNCASECMP ++static int ++nf_strncasecmp(const char* s1, const char* s2, u_int32_t len) ++{ ++ if (s1 == NULL || s2 == NULL) ++ { ++ if (s1 == NULL && s2 == NULL) ++ { ++ return 0; ++ } ++ return (s1 == NULL) ? -1 : 1; ++ } ++ while (len > 0 && tolower(*s1) == tolower(*s2)) ++ { ++ len--; ++ s1++; ++ s2++; ++ } ++ return ( (len == 0) ? 0 : (tolower(*s1) - tolower(*s2)) ); ++} ++#endif /* NF_NEED_STRNCASECMP */ ++ ++/* ++ * Parse a string containing a 16-bit unsigned integer. ++ * Returns the number of chars used, or zero if no number is found. ++ */ ++#ifdef NF_NEED_STRTOU16 ++static int ++nf_strtou16(const char* pbuf, u_int16_t* pval) ++{ ++ int n = 0; ++ ++ *pval = 0; ++ while (isdigit(pbuf[n])) ++ { ++ *pval = (*pval * 10) + (pbuf[n] - '0'); ++ n++; ++ } ++ ++ return n; ++} ++#endif /* NF_NEED_STRTOU16 */ ++ ++/* ++ * Parse a string containing a 32-bit unsigned integer. ++ * Returns the number of chars used, or zero if no number is found. ++ */ ++#ifdef NF_NEED_STRTOU32 ++static int ++nf_strtou32(const char* pbuf, u_int32_t* pval) ++{ ++ int n = 0; ++ ++ *pval = 0; ++ while (pbuf[n] >= '0' && pbuf[n] <= '9') ++ { ++ *pval = (*pval * 10) + (pbuf[n] - '0'); ++ n++; ++ } ++ ++ return n; ++} ++#endif /* NF_NEED_STRTOU32 */ ++ ++/* ++ * Given a buffer and length, advance to the next line and mark the current ++ * line. ++ */ ++#ifdef NF_NEED_NEXTLINE ++static int ++nf_nextline(char* p, uint len, uint* poff, uint* plineoff, uint* plinelen) ++{ ++ uint off = *poff; ++ uint physlen = 0; ++ ++ if (off >= len) ++ { ++ return 0; ++ } ++ ++ while (p[off] != '\n') ++ { ++ if (len-off <= 1) ++ { ++ return 0; ++ } ++ ++ physlen++; ++ off++; ++ } ++ ++ /* if we saw a crlf, physlen needs adjusted */ ++ if (physlen > 0 && p[off] == '\n' && p[off-1] == '\r') ++ { ++ physlen--; ++ } ++ ++ /* advance past the newline */ ++ off++; ++ ++ *plineoff = *poff; ++ *plinelen = physlen; ++ *poff = off; ++ ++ return 1; ++} ++#endif /* NF_NEED_NEXTLINE */ ++ ++#endif /* __KERNEL__ */ ++ ++#endif /* _NETFILTER_HELPERS_H */ +--- /dev/null ++++ b/include/linux/netfilter_mime.h +@@ -0,0 +1,89 @@ ++/* ++ * MIME functions for netfilter modules. This file provides implementations ++ * for basic MIME parsing. MIME headers are used in many protocols, such as ++ * HTTP, RTSP, SIP, etc. ++ * ++ * gcc will warn for defined but unused functions, so we only include the ++ * functions requested. The following macros are used: ++ * NF_NEED_MIME_NEXTLINE nf_mime_nextline() ++ */ ++#ifndef _NETFILTER_MIME_H ++#define _NETFILTER_MIME_H ++ ++/* Only include these functions for kernel code. */ ++#ifdef __KERNEL__ ++ ++#include ++ ++/* ++ * Given a buffer and length, advance to the next line and mark the current ++ * line. If the current line is empty, *plinelen will be set to zero. If ++ * not, it will be set to the actual line length (including CRLF). ++ * ++ * 'line' in this context means logical line (includes LWS continuations). ++ * Returns 1 on success, 0 on failure. ++ */ ++#ifdef NF_NEED_MIME_NEXTLINE ++static int ++nf_mime_nextline(char* p, uint len, uint* poff, uint* plineoff, uint* plinelen) ++{ ++ uint off = *poff; ++ uint physlen = 0; ++ int is_first_line = 1; ++ ++ if (off >= len) ++ { ++ return 0; ++ } ++ ++ do ++ { ++ while (p[off] != '\n') ++ { ++ if (len-off <= 1) ++ { ++ return 0; ++ } ++ ++ physlen++; ++ off++; ++ } ++ ++ /* if we saw a crlf, physlen needs adjusted */ ++ if (physlen > 0 && p[off] == '\n' && p[off-1] == '\r') ++ { ++ physlen--; ++ } ++ ++ /* advance past the newline */ ++ off++; ++ ++ /* check for an empty line */ ++ if (physlen == 0) ++ { ++ break; ++ } ++ ++ /* check for colon on the first physical line */ ++ if (is_first_line) ++ { ++ is_first_line = 0; ++ if (memchr(p+(*poff), ':', physlen) == NULL) ++ { ++ return 0; ++ } ++ } ++ } ++ while (p[off] == ' ' || p[off] == '\t'); ++ ++ *plineoff = *poff; ++ *plinelen = (physlen == 0) ? 0 : (off - *poff); ++ *poff = off; ++ ++ return 1; ++} ++#endif /* NF_NEED_MIME_NEXTLINE */ ++ ++#endif /* __KERNEL__ */ ++ ++#endif /* _NETFILTER_MIME_H */ +--- a/net/ipv4/netfilter/Makefile ++++ b/net/ipv4/netfilter/Makefile +@@ -26,6 +26,7 @@ obj-$(CONFIG_NF_NAT_AMANDA) += nf_nat_am + obj-$(CONFIG_NF_NAT_FTP) += nf_nat_ftp.o + obj-$(CONFIG_NF_NAT_H323) += nf_nat_h323.o + obj-$(CONFIG_NF_NAT_IRC) += nf_nat_irc.o ++obj-$(CONFIG_NF_NAT_RTSP) += nf_nat_rtsp.o + obj-$(CONFIG_NF_NAT_PPTP) += nf_nat_pptp.o + obj-$(CONFIG_NF_NAT_SIP) += nf_nat_sip.o + obj-$(CONFIG_NF_NAT_SNMP_BASIC) += nf_nat_snmp_basic.o +--- a/net/netfilter/Kconfig ++++ b/net/netfilter/Kconfig +@@ -289,6 +289,16 @@ config NF_CONNTRACK_TFTP + + To compile it as a module, choose M here. If unsure, say N. + ++config NF_CONNTRACK_RTSP ++ tristate "RTSP protocol support" ++ depends on NF_CONNTRACK ++ help ++ Support the RTSP protocol. This allows UDP transports to be setup ++ properly, including RTP and RDT. ++ ++ If you want to compile it as a module, say 'M' here and read ++ Documentation/modules.txt. If unsure, say 'Y'. ++ + config NF_CT_NETLINK + tristate 'Connection tracking netlink interface' + select NETFILTER_NETLINK +--- a/net/netfilter/Makefile ++++ b/net/netfilter/Makefile +@@ -36,6 +36,7 @@ obj-$(CONFIG_NF_CONNTRACK_PPTP) += nf_co + obj-$(CONFIG_NF_CONNTRACK_SANE) += nf_conntrack_sane.o + obj-$(CONFIG_NF_CONNTRACK_SIP) += nf_conntrack_sip.o + obj-$(CONFIG_NF_CONNTRACK_TFTP) += nf_conntrack_tftp.o ++obj-$(CONFIG_NF_CONNTRACK_RTSP) += nf_conntrack_rtsp.o + + # transparent proxy support + obj-$(CONFIG_NETFILTER_TPROXY) += nf_tproxy_core.o +--- a/net/ipv4/netfilter/Kconfig ++++ b/net/ipv4/netfilter/Kconfig +@@ -248,6 +248,11 @@ config NF_NAT_IRC + depends on NF_CONNTRACK && NF_NAT + default NF_NAT && NF_CONNTRACK_IRC + ++config NF_NAT_RTSP ++ tristate ++ depends on IP_NF_IPTABLES && NF_CONNTRACK && NF_NAT ++ default NF_NAT && NF_CONNTRACK_RTSP ++ + config NF_NAT_TFTP + tristate + depends on NF_CONNTRACK && NF_NAT +--- /dev/null ++++ b/net/netfilter/nf_conntrack_rtsp.c +@@ -0,0 +1,517 @@ ++/* ++ * RTSP extension for IP connection tracking ++ * (C) 2003 by Tom Marshall ++ * based on ip_conntrack_irc.c ++ * ++ * This program is free software; you can redistribute it and/or ++ * modify it under the terms of the GNU General Public License ++ * as published by the Free Software Foundation; either version ++ * 2 of the License, or (at your option) any later version. ++ * ++ * Module load syntax: ++ * insmod nf_conntrack_rtsp.o ports=port1,port2,...port ++ * max_outstanding=n setup_timeout=secs ++ * ++ * If no ports are specified, the default will be port 554. ++ * ++ * With max_outstanding you can define the maximum number of not yet ++ * answered SETUP requests per RTSP session (default 8). ++ * With setup_timeout you can specify how long the system waits for ++ * an expected data channel (default 300 seconds). ++ * ++ * 2005-02-13: Harald Welte ++ * - port to 2.6 ++ * - update to recent post-2.6.11 api changes ++ * 2006-09-14: Steven Van Acker ++ * - removed calls to NAT code from conntrack helper: NAT no longer needed to use rtsp-conntrack ++ * 2007-04-18: Michael Guntsche ++ * - Port to new NF API ++ */ ++ ++#include ++#include ++#include ++#include ++#include ++ ++#include ++#include ++#include ++#include ++ ++#define NF_NEED_STRNCASECMP ++#define NF_NEED_STRTOU16 ++#define NF_NEED_STRTOU32 ++#define NF_NEED_NEXTLINE ++#include ++#define NF_NEED_MIME_NEXTLINE ++#include ++ ++#include ++#define MAX_SIMUL_SETUP 8 /* XXX: use max_outstanding */ ++#define INFOP(fmt, args...) printk(KERN_INFO "%s: %s: " fmt, __FILE__, __FUNCTION__ , ## args) ++#if 0 ++#define DEBUGP(fmt, args...) printk(KERN_DEBUG "%s: %s: " fmt, __FILE__, __FUNCTION__ , ## args) ++#else ++#define DEBUGP(fmt, args...) ++#endif ++ ++#define MAX_PORTS 8 ++static int ports[MAX_PORTS]; ++static int num_ports = 0; ++static int max_outstanding = 8; ++static unsigned int setup_timeout = 300; ++ ++MODULE_AUTHOR("Tom Marshall "); ++MODULE_DESCRIPTION("RTSP connection tracking module"); ++MODULE_LICENSE("GPL"); ++module_param_array(ports, int, &num_ports, 0400); ++MODULE_PARM_DESC(ports, "port numbers of RTSP servers"); ++module_param(max_outstanding, int, 0400); ++MODULE_PARM_DESC(max_outstanding, "max number of outstanding SETUP requests per RTSP session"); ++module_param(setup_timeout, int, 0400); ++MODULE_PARM_DESC(setup_timeout, "timeout on for unestablished data channels"); ++ ++static char *rtsp_buffer; ++static DEFINE_SPINLOCK(rtsp_buffer_lock); ++ ++unsigned int (*nf_nat_rtsp_hook)(struct sk_buff *skb, ++ enum ip_conntrack_info ctinfo, ++ unsigned int matchoff, unsigned int matchlen,struct ip_ct_rtsp_expect* prtspexp, ++ struct nf_conntrack_expect *exp); ++void (*nf_nat_rtsp_hook_expectfn)(struct nf_conn *ct, struct nf_conntrack_expect *exp); ++ ++EXPORT_SYMBOL_GPL(nf_nat_rtsp_hook); ++ ++/* ++ * Max mappings we will allow for one RTSP connection (for RTP, the number ++ * of allocated ports is twice this value). Note that SMIL burns a lot of ++ * ports so keep this reasonably high. If this is too low, you will see a ++ * lot of "no free client map entries" messages. ++ */ ++#define MAX_PORT_MAPS 16 ++ ++/*** default port list was here in the masq code: 554, 3030, 4040 ***/ ++ ++#define SKIP_WSPACE(ptr,len,off) while(off < len && isspace(*(ptr+off))) { off++; } ++ ++/* ++ * Parse an RTSP packet. ++ * ++ * Returns zero if parsing failed. ++ * ++ * Parameters: ++ * IN ptcp tcp data pointer ++ * IN tcplen tcp data len ++ * IN/OUT ptcpoff points to current tcp offset ++ * OUT phdrsoff set to offset of rtsp headers ++ * OUT phdrslen set to length of rtsp headers ++ * OUT pcseqoff set to offset of CSeq header ++ * OUT pcseqlen set to length of CSeq header ++ */ ++static int ++rtsp_parse_message(char* ptcp, uint tcplen, uint* ptcpoff, ++ uint* phdrsoff, uint* phdrslen, ++ uint* pcseqoff, uint* pcseqlen, ++ uint* transoff, uint* translen) ++{ ++ uint entitylen = 0; ++ uint lineoff; ++ uint linelen; ++ ++ if (!nf_nextline(ptcp, tcplen, ptcpoff, &lineoff, &linelen)) ++ return 0; ++ ++ *phdrsoff = *ptcpoff; ++ while (nf_mime_nextline(ptcp, tcplen, ptcpoff, &lineoff, &linelen)) { ++ if (linelen == 0) { ++ if (entitylen > 0) ++ *ptcpoff += min(entitylen, tcplen - *ptcpoff); ++ break; ++ } ++ if (lineoff+linelen > tcplen) { ++ INFOP("!! overrun !!\n"); ++ break; ++ } ++ ++ if (nf_strncasecmp(ptcp+lineoff, "CSeq:", 5) == 0) { ++ *pcseqoff = lineoff; ++ *pcseqlen = linelen; ++ } ++ ++ if (nf_strncasecmp(ptcp+lineoff, "Transport:", 10) == 0) { ++ *transoff = lineoff; ++ *translen = linelen; ++ } ++ ++ if (nf_strncasecmp(ptcp+lineoff, "Content-Length:", 15) == 0) { ++ uint off = lineoff+15; ++ SKIP_WSPACE(ptcp+lineoff, linelen, off); ++ nf_strtou32(ptcp+off, &entitylen); ++ } ++ } ++ *phdrslen = (*ptcpoff) - (*phdrsoff); ++ ++ return 1; ++} ++ ++/* ++ * Find lo/hi client ports (if any) in transport header ++ * In: ++ * ptcp, tcplen = packet ++ * tranoff, tranlen = buffer to search ++ * ++ * Out: ++ * pport_lo, pport_hi = lo/hi ports (host endian) ++ * ++ * Returns nonzero if any client ports found ++ * ++ * Note: it is valid (and expected) for the client to request multiple ++ * transports, so we need to parse the entire line. ++ */ ++static int ++rtsp_parse_transport(char* ptran, uint tranlen, ++ struct ip_ct_rtsp_expect* prtspexp) ++{ ++ int rc = 0; ++ uint off = 0; ++ ++ if (tranlen < 10 || !iseol(ptran[tranlen-1]) || ++ nf_strncasecmp(ptran, "Transport:", 10) != 0) { ++ INFOP("sanity check failed\n"); ++ return 0; ++ } ++ ++ DEBUGP("tran='%.*s'\n", (int)tranlen, ptran); ++ off += 10; ++ SKIP_WSPACE(ptran, tranlen, off); ++ ++ /* Transport: tran;field;field=val,tran;field;field=val,... */ ++ while (off < tranlen) { ++ const char* pparamend; ++ uint nextparamoff; ++ ++ pparamend = memchr(ptran+off, ',', tranlen-off); ++ pparamend = (pparamend == NULL) ? ptran+tranlen : pparamend+1; ++ nextparamoff = pparamend-ptran; ++ ++ while (off < nextparamoff) { ++ const char* pfieldend; ++ uint nextfieldoff; ++ ++ pfieldend = memchr(ptran+off, ';', nextparamoff-off); ++ nextfieldoff = (pfieldend == NULL) ? nextparamoff : pfieldend-ptran+1; ++ ++ if (strncmp(ptran+off, "client_port=", 12) == 0) { ++ u_int16_t port; ++ uint numlen; ++ ++ off += 12; ++ numlen = nf_strtou16(ptran+off, &port); ++ off += numlen; ++ if (prtspexp->loport != 0 && prtspexp->loport != port) ++ DEBUGP("multiple ports found, port %hu ignored\n", port); ++ else { ++ DEBUGP("lo port found : %hu\n", port); ++ prtspexp->loport = prtspexp->hiport = port; ++ if (ptran[off] == '-') { ++ off++; ++ numlen = nf_strtou16(ptran+off, &port); ++ off += numlen; ++ prtspexp->pbtype = pb_range; ++ prtspexp->hiport = port; ++ ++ // If we have a range, assume rtp: ++ // loport must be even, hiport must be loport+1 ++ if ((prtspexp->loport & 0x0001) != 0 || ++ prtspexp->hiport != prtspexp->loport+1) { ++ DEBUGP("incorrect range: %hu-%hu, correcting\n", ++ prtspexp->loport, prtspexp->hiport); ++ prtspexp->loport &= 0xfffe; ++ prtspexp->hiport = prtspexp->loport+1; ++ } ++ } else if (ptran[off] == '/') { ++ off++; ++ numlen = nf_strtou16(ptran+off, &port); ++ off += numlen; ++ prtspexp->pbtype = pb_discon; ++ prtspexp->hiport = port; ++ } ++ rc = 1; ++ } ++ } ++ ++ /* ++ * Note we don't look for the destination parameter here. ++ * If we are using NAT, the NAT module will handle it. If not, ++ * and the client is sending packets elsewhere, the expectation ++ * will quietly time out. ++ */ ++ ++ off = nextfieldoff; ++ } ++ ++ off = nextparamoff; ++ } ++ ++ return rc; ++} ++ ++void expected(struct nf_conn *ct, struct nf_conntrack_expect *exp) ++{ ++ if(nf_nat_rtsp_hook_expectfn) { ++ nf_nat_rtsp_hook_expectfn(ct,exp); ++ } ++} ++ ++/*** conntrack functions ***/ ++ ++/* outbound packet: client->server */ ++ ++static inline int ++help_out(struct sk_buff *skb, unsigned char *rb_ptr, unsigned int datalen, ++ struct nf_conn *ct, enum ip_conntrack_info ctinfo) ++{ ++ struct ip_ct_rtsp_expect expinfo; ++ ++ int dir = CTINFO2DIR(ctinfo); /* = IP_CT_DIR_ORIGINAL */ ++ //struct tcphdr* tcph = (void*)iph + iph->ihl * 4; ++ //uint tcplen = pktlen - iph->ihl * 4; ++ char* pdata = rb_ptr; ++ //uint datalen = tcplen - tcph->doff * 4; ++ uint dataoff = 0; ++ int ret = NF_ACCEPT; ++ ++ struct nf_conntrack_expect *exp; ++ ++ __be16 be_loport; ++ ++ memset(&expinfo, 0, sizeof(expinfo)); ++ ++ while (dataoff < datalen) { ++ uint cmdoff = dataoff; ++ uint hdrsoff = 0; ++ uint hdrslen = 0; ++ uint cseqoff = 0; ++ uint cseqlen = 0; ++ uint transoff = 0; ++ uint translen = 0; ++ uint off; ++ ++ if (!rtsp_parse_message(pdata, datalen, &dataoff, ++ &hdrsoff, &hdrslen, ++ &cseqoff, &cseqlen, ++ &transoff, &translen)) ++ break; /* not a valid message */ ++ ++ if (strncmp(pdata+cmdoff, "SETUP ", 6) != 0) ++ continue; /* not a SETUP message */ ++ DEBUGP("found a setup message\n"); ++ ++ off = 0; ++ if(translen) { ++ rtsp_parse_transport(pdata+transoff, translen, &expinfo); ++ } ++ ++ if (expinfo.loport == 0) { ++ DEBUGP("no udp transports found\n"); ++ continue; /* no udp transports found */ ++ } ++ ++ DEBUGP("udp transport found, ports=(%d,%hu,%hu)\n", ++ (int)expinfo.pbtype, expinfo.loport, expinfo.hiport); ++ ++ exp = nf_ct_expect_alloc(ct); ++ if (!exp) { ++ ret = NF_DROP; ++ goto out; ++ } ++ ++ be_loport = htons(expinfo.loport); ++ ++ nf_ct_expect_init(exp, NF_CT_EXPECT_CLASS_DEFAULT, ++ ct->tuplehash[!dir].tuple.src.l3num, ++ &ct->tuplehash[!dir].tuple.src.u3, &ct->tuplehash[!dir].tuple.dst.u3, ++ IPPROTO_UDP, NULL, &be_loport); ++ ++ exp->master = ct; ++ ++ exp->expectfn = expected; ++ exp->flags = 0; ++ ++ if (expinfo.pbtype == pb_range) { ++ DEBUGP("Changing expectation mask to handle multiple ports\n"); ++ exp->mask.src.u.udp.port = 0xfffe; ++ } ++ ++ DEBUGP("expect_related %u.%u.%u.%u:%u-%u.%u.%u.%u:%u\n", ++ NIPQUAD(exp->tuple.src.u3.ip), ++ ntohs(exp->tuple.src.u.udp.port), ++ NIPQUAD(exp->tuple.dst.u3.ip), ++ ntohs(exp->tuple.dst.u.udp.port)); ++ ++ if (nf_nat_rtsp_hook) ++ /* pass the request off to the nat helper */ ++ ret = nf_nat_rtsp_hook(skb, ctinfo, hdrsoff, hdrslen, &expinfo, exp); ++ else if (nf_ct_expect_related(exp) != 0) { ++ INFOP("nf_ct_expect_related failed\n"); ++ ret = NF_DROP; ++ } ++ nf_ct_expect_put(exp); ++ goto out; ++ } ++out: ++ ++ return ret; ++} ++ ++ ++static inline int ++help_in(struct sk_buff *skb, size_t pktlen, ++ struct nf_conn* ct, enum ip_conntrack_info ctinfo) ++{ ++ return NF_ACCEPT; ++} ++ ++static int help(struct sk_buff *skb, unsigned int protoff, ++ struct nf_conn *ct, enum ip_conntrack_info ctinfo) ++{ ++ struct tcphdr _tcph, *th; ++ unsigned int dataoff, datalen; ++ char *rb_ptr; ++ int ret = NF_DROP; ++ ++ /* Until there's been traffic both ways, don't look in packets. */ ++ if (ctinfo != IP_CT_ESTABLISHED && ++ ctinfo != IP_CT_ESTABLISHED + IP_CT_IS_REPLY) { ++ DEBUGP("conntrackinfo = %u\n", ctinfo); ++ return NF_ACCEPT; ++ } ++ ++ /* Not whole TCP header? */ ++ th = skb_header_pointer(skb, protoff, sizeof(_tcph), &_tcph); ++ ++ if (!th) ++ return NF_ACCEPT; ++ ++ /* No data ? */ ++ dataoff = protoff + th->doff*4; ++ datalen = skb->len - dataoff; ++ if (dataoff >= skb->len) ++ return NF_ACCEPT; ++ ++ spin_lock_bh(&rtsp_buffer_lock); ++ rb_ptr = skb_header_pointer(skb, dataoff, ++ skb->len - dataoff, rtsp_buffer); ++ BUG_ON(rb_ptr == NULL); ++ ++#if 0 ++ /* Checksum invalid? Ignore. */ ++ /* FIXME: Source route IP option packets --RR */ ++ if (tcp_v4_check(tcph, tcplen, iph->saddr, iph->daddr, ++ csum_partial((char*)tcph, tcplen, 0))) ++ { ++ DEBUGP("bad csum: %p %u %u.%u.%u.%u %u.%u.%u.%u\n", ++ tcph, tcplen, NIPQUAD(iph->saddr), NIPQUAD(iph->daddr)); ++ return NF_ACCEPT; ++ } ++#endif ++ ++ switch (CTINFO2DIR(ctinfo)) { ++ case IP_CT_DIR_ORIGINAL: ++ ret = help_out(skb, rb_ptr, datalen, ct, ctinfo); ++ break; ++ case IP_CT_DIR_REPLY: ++ DEBUGP("IP_CT_DIR_REPLY\n"); ++ /* inbound packet: server->client */ ++ ret = NF_ACCEPT; ++ break; ++ } ++ ++ spin_unlock_bh(&rtsp_buffer_lock); ++ ++ return ret; ++} ++ ++static struct nf_conntrack_helper rtsp_helpers[MAX_PORTS]; ++static char rtsp_names[MAX_PORTS][10]; ++static struct nf_conntrack_expect_policy rtsp_expect_policy; ++ ++/* This function is intentionally _NOT_ defined as __exit */ ++static void ++fini(void) ++{ ++ int i; ++ for (i = 0; i < num_ports; i++) { ++ DEBUGP("unregistering port %d\n", ports[i]); ++ nf_conntrack_helper_unregister(&rtsp_helpers[i]); ++ } ++ kfree(rtsp_buffer); ++} ++ ++static int __init ++init(void) ++{ ++ int i, ret; ++ struct nf_conntrack_helper *hlpr; ++ char *tmpname; ++ ++ printk("nf_conntrack_rtsp v" IP_NF_RTSP_VERSION " loading\n"); ++ ++ if (max_outstanding < 1) { ++ printk("nf_conntrack_rtsp: max_outstanding must be a positive integer\n"); ++ return -EBUSY; ++ } ++ if (setup_timeout < 0) { ++ printk("nf_conntrack_rtsp: setup_timeout must be a positive integer\n"); ++ return -EBUSY; ++ } ++ ++ rtsp_expect_policy.max_expected = max_outstanding; ++ rtsp_expect_policy.timeout = setup_timeout; ++ ++ rtsp_buffer = kmalloc(65536, GFP_KERNEL); ++ if (!rtsp_buffer) ++ return -ENOMEM; ++ ++ /* If no port given, default to standard rtsp port */ ++ if (ports[0] == 0) { ++ ports[0] = RTSP_PORT; ++ } ++ ++ for (i = 0; (i < MAX_PORTS) && ports[i]; i++) { ++ hlpr = &rtsp_helpers[i]; ++ memset(hlpr, 0, sizeof(struct nf_conntrack_helper)); ++ hlpr->tuple.src.u.tcp.port = htons(ports[i]); ++ hlpr->tuple.dst.protonum = IPPROTO_TCP; ++ hlpr->expect_policy = &rtsp_expect_policy; ++ hlpr->me = THIS_MODULE; ++ hlpr->help = help; ++ ++ tmpname = &rtsp_names[i][0]; ++ if (ports[i] == RTSP_PORT) { ++ sprintf(tmpname, "rtsp"); ++ } else { ++ sprintf(tmpname, "rtsp-%d", i); ++ } ++ hlpr->name = tmpname; ++ ++ DEBUGP("port #%d: %d\n", i, ports[i]); ++ ++ ret = nf_conntrack_helper_register(hlpr); ++ ++ if (ret) { ++ printk("nf_conntrack_rtsp: ERROR registering port %d\n", ports[i]); ++ fini(); ++ return -EBUSY; ++ } ++ num_ports++; ++ } ++ return 0; ++} ++ ++module_init(init); ++module_exit(fini); ++ ++EXPORT_SYMBOL(nf_nat_rtsp_hook_expectfn); ++ +--- /dev/null ++++ b/net/ipv4/netfilter/nf_nat_rtsp.c +@@ -0,0 +1,496 @@ ++/* ++ * RTSP extension for TCP NAT alteration ++ * (C) 2003 by Tom Marshall ++ * based on ip_nat_irc.c ++ * ++ * This program is free software; you can redistribute it and/or ++ * modify it under the terms of the GNU General Public License ++ * as published by the Free Software Foundation; either version ++ * 2 of the License, or (at your option) any later version. ++ * ++ * Module load syntax: ++ * insmod nf_nat_rtsp.o ports=port1,port2,...port ++ * stunaddr=
++ * destaction=[auto|strip|none] ++ * ++ * If no ports are specified, the default will be port 554 only. ++ * ++ * stunaddr specifies the address used to detect that a client is using STUN. ++ * If this address is seen in the destination parameter, it is assumed that ++ * the client has already punched a UDP hole in the firewall, so we don't ++ * mangle the client_port. If none is specified, it is autodetected. It ++ * only needs to be set if you have multiple levels of NAT. It should be ++ * set to the external address that the STUN clients detect. Note that in ++ * this case, it will not be possible for clients to use UDP with servers ++ * between the NATs. ++ * ++ * If no destaction is specified, auto is used. ++ * destaction=auto: strip destination parameter if it is not stunaddr. ++ * destaction=strip: always strip destination parameter (not recommended). ++ * destaction=none: do not touch destination parameter (not recommended). ++ */ ++ ++#include ++#include ++#include ++#include ++#include ++#include ++ ++#include ++#include ++#define NF_NEED_STRNCASECMP ++#define NF_NEED_STRTOU16 ++#include ++#define NF_NEED_MIME_NEXTLINE ++#include ++ ++#define INFOP(fmt, args...) printk(KERN_INFO "%s: %s: " fmt, __FILE__, __FUNCTION__ , ## args) ++#if 0 ++#define DEBUGP(fmt, args...) printk(KERN_DEBUG "%s: %s: " fmt, __FILE__, __FUNCTION__ , ## args) ++#else ++#define DEBUGP(fmt, args...) ++#endif ++ ++#define MAX_PORTS 8 ++#define DSTACT_AUTO 0 ++#define DSTACT_STRIP 1 ++#define DSTACT_NONE 2 ++ ++static char* stunaddr = NULL; ++static char* destaction = NULL; ++ ++static u_int32_t extip = 0; ++static int dstact = 0; ++ ++MODULE_AUTHOR("Tom Marshall "); ++MODULE_DESCRIPTION("RTSP network address translation module"); ++MODULE_LICENSE("GPL"); ++module_param(stunaddr, charp, 0644); ++MODULE_PARM_DESC(stunaddr, "Address for detecting STUN"); ++module_param(destaction, charp, 0644); ++MODULE_PARM_DESC(destaction, "Action for destination parameter (auto/strip/none)"); ++ ++#define SKIP_WSPACE(ptr,len,off) while(off < len && isspace(*(ptr+off))) { off++; } ++ ++/*** helper functions ***/ ++ ++static void ++get_skb_tcpdata(struct sk_buff* skb, char** pptcpdata, uint* ptcpdatalen) ++{ ++ struct iphdr* iph = ip_hdr(skb); ++ struct tcphdr* tcph = (void *)iph + ip_hdrlen(skb); ++ ++ *pptcpdata = (char*)tcph + tcph->doff*4; ++ *ptcpdatalen = ((char*)skb_transport_header(skb) + skb->len) - *pptcpdata; ++} ++ ++/*** nat functions ***/ ++ ++/* ++ * Mangle the "Transport:" header: ++ * - Replace all occurences of "client_port=" ++ * - Handle destination parameter ++ * ++ * In: ++ * ct, ctinfo = conntrack context ++ * skb = packet ++ * tranoff = Transport header offset from TCP data ++ * tranlen = Transport header length (incl. CRLF) ++ * rport_lo = replacement low port (host endian) ++ * rport_hi = replacement high port (host endian) ++ * ++ * Returns packet size difference. ++ * ++ * Assumes that a complete transport header is present, ending with CR or LF ++ */ ++static int ++rtsp_mangle_tran(enum ip_conntrack_info ctinfo, ++ struct nf_conntrack_expect* exp, ++ struct ip_ct_rtsp_expect* prtspexp, ++ struct sk_buff* skb, uint tranoff, uint tranlen) ++{ ++ char* ptcp; ++ uint tcplen; ++ char* ptran; ++ char rbuf1[16]; /* Replacement buffer (one port) */ ++ uint rbuf1len; /* Replacement len (one port) */ ++ char rbufa[16]; /* Replacement buffer (all ports) */ ++ uint rbufalen; /* Replacement len (all ports) */ ++ u_int32_t newip; ++ u_int16_t loport, hiport; ++ uint off = 0; ++ uint diff; /* Number of bytes we removed */ ++ ++ struct nf_conn *ct = exp->master; ++ struct nf_conntrack_tuple *t; ++ ++ char szextaddr[15+1]; ++ uint extaddrlen; ++ int is_stun; ++ ++ get_skb_tcpdata(skb, &ptcp, &tcplen); ++ ptran = ptcp+tranoff; ++ ++ if (tranoff+tranlen > tcplen || tcplen-tranoff < tranlen || ++ tranlen < 10 || !iseol(ptran[tranlen-1]) || ++ nf_strncasecmp(ptran, "Transport:", 10) != 0) ++ { ++ INFOP("sanity check failed\n"); ++ return 0; ++ } ++ off += 10; ++ SKIP_WSPACE(ptcp+tranoff, tranlen, off); ++ ++ newip = ct->tuplehash[IP_CT_DIR_REPLY].tuple.dst.u3.ip; ++ t = &exp->tuple; ++ t->dst.u3.ip = newip; ++ ++ extaddrlen = extip ? sprintf(szextaddr, "%u.%u.%u.%u", &extip) ++ : sprintf(szextaddr, "%u.%u.%u.%u", &newip); ++ DEBUGP("stunaddr=%s (%s)\n", szextaddr, (extip?"forced":"auto")); ++ ++ rbuf1len = rbufalen = 0; ++ switch (prtspexp->pbtype) ++ { ++ case pb_single: ++ for (loport = prtspexp->loport; loport != 0; loport++) /* XXX: improper wrap? */ ++ { ++ t->dst.u.udp.port = htons(loport); ++ if (nf_ct_expect_related(exp) == 0) ++ { ++ DEBUGP("using port %hu\n", loport); ++ break; ++ } ++ } ++ if (loport != 0) ++ { ++ rbuf1len = sprintf(rbuf1, "%hu", loport); ++ rbufalen = sprintf(rbufa, "%hu", loport); ++ } ++ break; ++ case pb_range: ++ for (loport = prtspexp->loport; loport != 0; loport += 2) /* XXX: improper wrap? */ ++ { ++ t->dst.u.udp.port = htons(loport); ++ if (nf_ct_expect_related(exp) == 0) ++ { ++ hiport = loport + ~exp->mask.src.u.udp.port; ++ DEBUGP("using ports %hu-%hu\n", loport, hiport); ++ break; ++ } ++ } ++ if (loport != 0) ++ { ++ rbuf1len = sprintf(rbuf1, "%hu", loport); ++ rbufalen = sprintf(rbufa, "%hu-%hu", loport, loport+1); ++ } ++ break; ++ case pb_discon: ++ for (loport = prtspexp->loport; loport != 0; loport++) /* XXX: improper wrap? */ ++ { ++ t->dst.u.udp.port = htons(loport); ++ if (nf_ct_expect_related(exp) == 0) ++ { ++ DEBUGP("using port %hu (1 of 2)\n", loport); ++ break; ++ } ++ } ++ for (hiport = prtspexp->hiport; hiport != 0; hiport++) /* XXX: improper wrap? */ ++ { ++ t->dst.u.udp.port = htons(hiport); ++ if (nf_ct_expect_related(exp) == 0) ++ { ++ DEBUGP("using port %hu (2 of 2)\n", hiport); ++ break; ++ } ++ } ++ if (loport != 0 && hiport != 0) ++ { ++ rbuf1len = sprintf(rbuf1, "%hu", loport); ++ if (hiport == loport+1) ++ { ++ rbufalen = sprintf(rbufa, "%hu-%hu", loport, hiport); ++ } ++ else ++ { ++ rbufalen = sprintf(rbufa, "%hu/%hu", loport, hiport); ++ } ++ } ++ break; ++ } ++ ++ if (rbuf1len == 0) ++ { ++ return 0; /* cannot get replacement port(s) */ ++ } ++ ++ /* Transport: tran;field;field=val,tran;field;field=val,... */ ++ while (off < tranlen) ++ { ++ uint saveoff; ++ const char* pparamend; ++ uint nextparamoff; ++ ++ pparamend = memchr(ptran+off, ',', tranlen-off); ++ pparamend = (pparamend == NULL) ? ptran+tranlen : pparamend+1; ++ nextparamoff = pparamend-ptcp; ++ ++ /* ++ * We pass over each param twice. On the first pass, we look for a ++ * destination= field. It is handled by the security policy. If it ++ * is present, allowed, and equal to our external address, we assume ++ * that STUN is being used and we leave the client_port= field alone. ++ */ ++ is_stun = 0; ++ saveoff = off; ++ while (off < nextparamoff) ++ { ++ const char* pfieldend; ++ uint nextfieldoff; ++ ++ pfieldend = memchr(ptran+off, ';', nextparamoff-off); ++ nextfieldoff = (pfieldend == NULL) ? nextparamoff : pfieldend-ptran+1; ++ ++ if (dstact != DSTACT_NONE && strncmp(ptran+off, "destination=", 12) == 0) ++ { ++ if (strncmp(ptran+off+12, szextaddr, extaddrlen) == 0) ++ { ++ is_stun = 1; ++ } ++ if (dstact == DSTACT_STRIP || (dstact == DSTACT_AUTO && !is_stun)) ++ { ++ diff = nextfieldoff-off; ++ if (!nf_nat_mangle_tcp_packet(skb, ct, ctinfo, ++ off, diff, NULL, 0)) ++ { ++ /* mangle failed, all we can do is bail */ ++ nf_ct_unexpect_related(exp); ++ return 0; ++ } ++ get_skb_tcpdata(skb, &ptcp, &tcplen); ++ ptran = ptcp+tranoff; ++ tranlen -= diff; ++ nextparamoff -= diff; ++ nextfieldoff -= diff; ++ } ++ } ++ ++ off = nextfieldoff; ++ } ++ if (is_stun) ++ { ++ continue; ++ } ++ off = saveoff; ++ while (off < nextparamoff) ++ { ++ const char* pfieldend; ++ uint nextfieldoff; ++ ++ pfieldend = memchr(ptran+off, ';', nextparamoff-off); ++ nextfieldoff = (pfieldend == NULL) ? nextparamoff : pfieldend-ptran+1; ++ ++ if (strncmp(ptran+off, "client_port=", 12) == 0) ++ { ++ u_int16_t port; ++ uint numlen; ++ uint origoff; ++ uint origlen; ++ char* rbuf = rbuf1; ++ uint rbuflen = rbuf1len; ++ ++ off += 12; ++ origoff = (ptran-ptcp)+off; ++ origlen = 0; ++ numlen = nf_strtou16(ptran+off, &port); ++ off += numlen; ++ origlen += numlen; ++ if (port != prtspexp->loport) ++ { ++ DEBUGP("multiple ports found, port %hu ignored\n", port); ++ } ++ else ++ { ++ if (ptran[off] == '-' || ptran[off] == '/') ++ { ++ off++; ++ origlen++; ++ numlen = nf_strtou16(ptran+off, &port); ++ off += numlen; ++ origlen += numlen; ++ rbuf = rbufa; ++ rbuflen = rbufalen; ++ } ++ ++ /* ++ * note we cannot just memcpy() if the sizes are the same. ++ * the mangle function does skb resizing, checks for a ++ * cloned skb, and updates the checksums. ++ * ++ * parameter 4 below is offset from start of tcp data. ++ */ ++ diff = origlen-rbuflen; ++ if (!nf_nat_mangle_tcp_packet(skb, ct, ctinfo, ++ origoff, origlen, rbuf, rbuflen)) ++ { ++ /* mangle failed, all we can do is bail */ ++ nf_ct_unexpect_related(exp); ++ return 0; ++ } ++ get_skb_tcpdata(skb, &ptcp, &tcplen); ++ ptran = ptcp+tranoff; ++ tranlen -= diff; ++ nextparamoff -= diff; ++ nextfieldoff -= diff; ++ } ++ } ++ ++ off = nextfieldoff; ++ } ++ ++ off = nextparamoff; ++ } ++ ++ return 1; ++} ++ ++static uint ++help_out(struct sk_buff *skb, enum ip_conntrack_info ctinfo, ++ unsigned int matchoff, unsigned int matchlen, struct ip_ct_rtsp_expect* prtspexp, ++ struct nf_conntrack_expect* exp) ++{ ++ char* ptcp; ++ uint tcplen; ++ uint hdrsoff; ++ uint hdrslen; ++ uint lineoff; ++ uint linelen; ++ uint off; ++ ++ //struct iphdr* iph = (struct iphdr*)skb->nh.iph; ++ //struct tcphdr* tcph = (struct tcphdr*)((void*)iph + iph->ihl*4); ++ ++ get_skb_tcpdata(skb, &ptcp, &tcplen); ++ hdrsoff = matchoff;//exp->seq - ntohl(tcph->seq); ++ hdrslen = matchlen; ++ off = hdrsoff; ++ DEBUGP("NAT rtsp help_out\n"); ++ ++ while (nf_mime_nextline(ptcp, hdrsoff+hdrslen, &off, &lineoff, &linelen)) ++ { ++ if (linelen == 0) ++ { ++ break; ++ } ++ if (off > hdrsoff+hdrslen) ++ { ++ INFOP("!! overrun !!"); ++ break; ++ } ++ DEBUGP("hdr: len=%u, %.*s", linelen, (int)linelen, ptcp+lineoff); ++ ++ if (nf_strncasecmp(ptcp+lineoff, "Transport:", 10) == 0) ++ { ++ uint oldtcplen = tcplen; ++ DEBUGP("hdr: Transport\n"); ++ if (!rtsp_mangle_tran(ctinfo, exp, prtspexp, skb, lineoff, linelen)) ++ { ++ DEBUGP("hdr: Transport mangle failed"); ++ break; ++ } ++ get_skb_tcpdata(skb, &ptcp, &tcplen); ++ hdrslen -= (oldtcplen-tcplen); ++ off -= (oldtcplen-tcplen); ++ lineoff -= (oldtcplen-tcplen); ++ linelen -= (oldtcplen-tcplen); ++ DEBUGP("rep: len=%u, %.*s", linelen, (int)linelen, ptcp+lineoff); ++ } ++ } ++ ++ return NF_ACCEPT; ++} ++ ++static unsigned int ++help(struct sk_buff *skb, enum ip_conntrack_info ctinfo, ++ unsigned int matchoff, unsigned int matchlen, struct ip_ct_rtsp_expect* prtspexp, ++ struct nf_conntrack_expect* exp) ++{ ++ int dir = CTINFO2DIR(ctinfo); ++ int rc = NF_ACCEPT; ++ ++ switch (dir) ++ { ++ case IP_CT_DIR_ORIGINAL: ++ rc = help_out(skb, ctinfo, matchoff, matchlen, prtspexp, exp); ++ break; ++ case IP_CT_DIR_REPLY: ++ DEBUGP("unmangle ! %u\n", ctinfo); ++ /* XXX: unmangle */ ++ rc = NF_ACCEPT; ++ break; ++ } ++ //UNLOCK_BH(&ip_rtsp_lock); ++ ++ return rc; ++} ++ ++static void expected(struct nf_conn* ct, struct nf_conntrack_expect *exp) ++{ ++ struct nf_nat_multi_range_compat mr; ++ u_int32_t newdstip, newsrcip, newip; ++ ++ struct nf_conn *master = ct->master; ++ ++ newdstip = master->tuplehash[IP_CT_DIR_ORIGINAL].tuple.src.u3.ip; ++ newsrcip = ct->tuplehash[IP_CT_DIR_ORIGINAL].tuple.src.u3.ip; ++ //FIXME (how to port that ?) ++ //code from 2.4 : newip = (HOOK2MANIP(hooknum) == IP_NAT_MANIP_SRC) ? newsrcip : newdstip; ++ newip = newdstip; ++ ++ DEBUGP("newsrcip=%u.%u.%u.%u, newdstip=%u.%u.%u.%u, newip=%u.%u.%u.%u\n", ++ &newsrcip, &newdstip, &newip); ++ ++ mr.rangesize = 1; ++ // We don't want to manip the per-protocol, just the IPs. ++ mr.range[0].flags = IP_NAT_RANGE_MAP_IPS; ++ mr.range[0].min_ip = mr.range[0].max_ip = newip; ++ ++ nf_nat_setup_info(ct, &mr.range[0], IP_NAT_MANIP_DST); ++} ++ ++ ++static void __exit fini(void) ++{ ++ nf_nat_rtsp_hook = NULL; ++ nf_nat_rtsp_hook_expectfn = NULL; ++ synchronize_net(); ++} ++ ++static int __init init(void) ++{ ++ printk("nf_nat_rtsp v" IP_NF_RTSP_VERSION " loading\n"); ++ ++ BUG_ON(nf_nat_rtsp_hook); ++ nf_nat_rtsp_hook = help; ++ nf_nat_rtsp_hook_expectfn = &expected; ++ ++ if (stunaddr != NULL) ++ extip = in_aton(stunaddr); ++ ++ if (destaction != NULL) { ++ if (strcmp(destaction, "auto") == 0) ++ dstact = DSTACT_AUTO; ++ ++ if (strcmp(destaction, "strip") == 0) ++ dstact = DSTACT_STRIP; ++ ++ if (strcmp(destaction, "none") == 0) ++ dstact = DSTACT_NONE; ++ } ++ ++ return 0; ++} ++ ++module_init(init); ++module_exit(fini); diff --git a/target/linux/generic/patches-2.6.39/620-phy_adm6996.patch b/target/linux/generic/patches-2.6.39/620-phy_adm6996.patch deleted file mode 100644 index 614cfdfe1d8..00000000000 --- a/target/linux/generic/patches-2.6.39/620-phy_adm6996.patch +++ /dev/null @@ -1,24 +0,0 @@ ---- a/drivers/net/phy/Kconfig -+++ b/drivers/net/phy/Kconfig -@@ -91,6 +91,11 @@ config MICREL_PHY - ---help--- - Supports the KSZ9021, VSC8201, KS8001 PHYs. - -+config ADM6996_PHY -+ tristate "Driver for ADM6996 switches" -+ ---help--- -+ Currently supports the ADM6996F switch -+ - config FIXED_PHY - bool "Driver for MDIO Bus/PHY emulation with fixed speed/link PHYs" - depends on PHYLIB=y ---- a/drivers/net/phy/Makefile -+++ b/drivers/net/phy/Makefile -@@ -13,6 +13,7 @@ obj-$(CONFIG_VITESSE_PHY) += vitesse.o - obj-$(CONFIG_BROADCOM_PHY) += broadcom.o - obj-$(CONFIG_BCM63XX_PHY) += bcm63xx.o - obj-$(CONFIG_ICPLUS_PHY) += icplus.o -+obj-$(CONFIG_ADM6996_PHY) += adm6996.o - obj-$(CONFIG_REALTEK_PHY) += realtek.o - obj-$(CONFIG_LSI_ET1011C_PHY) += et1011c.o - obj-$(CONFIG_FIXED_PHY) += fixed.o diff --git a/target/linux/generic/patches-2.6.39/620-sched_esfq.patch b/target/linux/generic/patches-2.6.39/620-sched_esfq.patch new file mode 100644 index 00000000000..868f97b3396 --- /dev/null +++ b/target/linux/generic/patches-2.6.39/620-sched_esfq.patch @@ -0,0 +1,795 @@ +--- a/include/linux/pkt_sched.h ++++ b/include/linux/pkt_sched.h +@@ -173,8 +173,37 @@ struct tc_sfq_xstats { + * + * The only reason for this is efficiency, it is possible + * to change these parameters in compile time. ++ * ++ * If you need to play with these values, use esfq instead. + */ + ++/* ESFQ section */ ++ ++enum ++{ ++ /* traditional */ ++ TCA_SFQ_HASH_CLASSIC, ++ TCA_SFQ_HASH_DST, ++ TCA_SFQ_HASH_SRC, ++ TCA_SFQ_HASH_FWMARK, ++ /* conntrack */ ++ TCA_SFQ_HASH_CTORIGDST, ++ TCA_SFQ_HASH_CTORIGSRC, ++ TCA_SFQ_HASH_CTREPLDST, ++ TCA_SFQ_HASH_CTREPLSRC, ++ TCA_SFQ_HASH_CTNATCHG, ++}; ++ ++struct tc_esfq_qopt ++{ ++ unsigned quantum; /* Bytes per round allocated to flow */ ++ int perturb_period; /* Period of hash perturbation */ ++ __u32 limit; /* Maximal packets in queue */ ++ unsigned divisor; /* Hash divisor */ ++ unsigned flows; /* Maximal number of flows */ ++ unsigned hash_kind; /* Hash function to use for flow identification */ ++}; ++ + /* RED section */ + + enum { +--- a/net/sched/Kconfig ++++ b/net/sched/Kconfig +@@ -148,6 +148,37 @@ config NET_SCH_SFQ + To compile this code as a module, choose M here: the + module will be called sch_sfq. + ++config NET_SCH_ESFQ ++ tristate "Enhanced Stochastic Fairness Queueing (ESFQ)" ++ ---help--- ++ Say Y here if you want to use the Enhanced Stochastic Fairness ++ Queueing (ESFQ) packet scheduling algorithm for some of your network ++ devices or as a leaf discipline for a classful qdisc such as HTB or ++ CBQ (see the top of for details and ++ references to the SFQ algorithm). ++ ++ This is an enchanced SFQ version which allows you to control some ++ hardcoded values in the SFQ scheduler. ++ ++ ESFQ also adds control of the hash function used to identify packet ++ flows. The original SFQ discipline hashes by connection; ESFQ add ++ several other hashing methods, such as by src IP or by dst IP, which ++ can be more fair to users in some networking situations. ++ ++ To compile this code as a module, choose M here: the ++ module will be called sch_esfq. ++ ++config NET_SCH_ESFQ_NFCT ++ bool "Connection Tracking Hash Types" ++ depends on NET_SCH_ESFQ && NF_CONNTRACK ++ ---help--- ++ Say Y here to enable support for hashing based on netfilter connection ++ tracking information. This is useful for a router that is also using ++ NAT to connect privately-addressed hosts to the Internet. If you want ++ to provide fair distribution of upstream bandwidth, ESFQ must use ++ connection tracking information, since all outgoing packets will share ++ the same source address. ++ + config NET_SCH_TEQL + tristate "True Link Equalizer (TEQL)" + ---help--- +--- a/net/sched/Makefile ++++ b/net/sched/Makefile +@@ -26,6 +26,7 @@ obj-$(CONFIG_NET_SCH_INGRESS) += sch_ing + obj-$(CONFIG_NET_SCH_DSMARK) += sch_dsmark.o + obj-$(CONFIG_NET_SCH_SFB) += sch_sfb.o + obj-$(CONFIG_NET_SCH_SFQ) += sch_sfq.o ++obj-$(CONFIG_NET_SCH_ESFQ) += sch_esfq.o + obj-$(CONFIG_NET_SCH_TBF) += sch_tbf.o + obj-$(CONFIG_NET_SCH_TEQL) += sch_teql.o + obj-$(CONFIG_NET_SCH_PRIO) += sch_prio.o +--- /dev/null ++++ b/net/sched/sch_esfq.c +@@ -0,0 +1,702 @@ ++/* ++ * net/sched/sch_esfq.c Extended Stochastic Fairness Queueing discipline. ++ * ++ * This program is free software; you can redistribute it and/or ++ * modify it under the terms of the GNU General Public License ++ * as published by the Free Software Foundation; either version ++ * 2 of the License, or (at your option) any later version. ++ * ++ * Authors: Alexey Kuznetsov, ++ * ++ * Changes: Alexander Atanasov, ++ * Added dynamic depth,limit,divisor,hash_kind options. ++ * Added dst and src hashes. ++ * ++ * Alexander Clouter, ++ * Ported ESFQ to Linux 2.6. ++ * ++ * Corey Hickey, ++ * Maintenance of the Linux 2.6 port. ++ * Added fwmark hash (thanks to Robert Kurjata). ++ * Added usage of jhash. ++ * Added conntrack support. ++ * Added ctnatchg hash (thanks to Ben Pfountz). ++ */ ++ ++#include ++#include ++#include ++#include ++#include ++#include ++#include ++#include ++#include ++#include ++#include ++#include ++#include ++#include ++#include ++#include ++#include ++#include ++#include ++#include ++#include ++#include ++#include ++#include ++#include ++#include ++#include ++#include ++#ifdef CONFIG_NET_SCH_ESFQ_NFCT ++#include ++#endif ++ ++/* Stochastic Fairness Queuing algorithm. ++ For more comments look at sch_sfq.c. ++ The difference is that you can change limit, depth, ++ hash table size and choose alternate hash types. ++ ++ classic: same as in sch_sfq.c ++ dst: destination IP address ++ src: source IP address ++ fwmark: netfilter mark value ++ ctorigdst: original destination IP address ++ ctorigsrc: original source IP address ++ ctrepldst: reply destination IP address ++ ctreplsrc: reply source IP ++ ++*/ ++ ++#define ESFQ_HEAD 0 ++#define ESFQ_TAIL 1 ++ ++/* This type should contain at least SFQ_DEPTH*2 values */ ++typedef unsigned int esfq_index; ++ ++struct esfq_head ++{ ++ esfq_index next; ++ esfq_index prev; ++}; ++ ++struct esfq_sched_data ++{ ++/* Parameters */ ++ int perturb_period; ++ unsigned quantum; /* Allotment per round: MUST BE >= MTU */ ++ int limit; ++ unsigned depth; ++ unsigned hash_divisor; ++ unsigned hash_kind; ++/* Variables */ ++ struct timer_list perturb_timer; ++ int perturbation; ++ esfq_index tail; /* Index of current slot in round */ ++ esfq_index max_depth; /* Maximal depth */ ++ ++ esfq_index *ht; /* Hash table */ ++ esfq_index *next; /* Active slots link */ ++ short *allot; /* Current allotment per slot */ ++ unsigned short *hash; /* Hash value indexed by slots */ ++ struct sk_buff_head *qs; /* Slot queue */ ++ struct esfq_head *dep; /* Linked list of slots, indexed by depth */ ++}; ++ ++/* This contains the info we will hash. */ ++struct esfq_packet_info ++{ ++ u32 proto; /* protocol or port */ ++ u32 src; /* source from packet header */ ++ u32 dst; /* destination from packet header */ ++ u32 ctorigsrc; /* original source from conntrack */ ++ u32 ctorigdst; /* original destination from conntrack */ ++ u32 ctreplsrc; /* reply source from conntrack */ ++ u32 ctrepldst; /* reply destination from conntrack */ ++ u32 mark; /* netfilter mark (fwmark) */ ++}; ++ ++static __inline__ unsigned esfq_jhash_1word(struct esfq_sched_data *q,u32 a) ++{ ++ return jhash_1word(a, q->perturbation) & (q->hash_divisor-1); ++} ++ ++static __inline__ unsigned esfq_jhash_2words(struct esfq_sched_data *q, u32 a, u32 b) ++{ ++ return jhash_2words(a, b, q->perturbation) & (q->hash_divisor-1); ++} ++ ++static __inline__ unsigned esfq_jhash_3words(struct esfq_sched_data *q, u32 a, u32 b, u32 c) ++{ ++ return jhash_3words(a, b, c, q->perturbation) & (q->hash_divisor-1); ++} ++ ++static unsigned esfq_hash(struct esfq_sched_data *q, struct sk_buff *skb) ++{ ++ struct esfq_packet_info info; ++#ifdef CONFIG_NET_SCH_ESFQ_NFCT ++ enum ip_conntrack_info ctinfo; ++ struct nf_conn *ct = nf_ct_get(skb, &ctinfo); ++#endif ++ ++ switch (skb->protocol) { ++ case __constant_htons(ETH_P_IP): ++ { ++ struct iphdr *iph = ip_hdr(skb); ++ info.dst = iph->daddr; ++ info.src = iph->saddr; ++ if (!(iph->frag_off&htons(IP_MF|IP_OFFSET)) && ++ (iph->protocol == IPPROTO_TCP || ++ iph->protocol == IPPROTO_UDP || ++ iph->protocol == IPPROTO_SCTP || ++ iph->protocol == IPPROTO_DCCP || ++ iph->protocol == IPPROTO_ESP)) ++ info.proto = *(((u32*)iph) + iph->ihl); ++ else ++ info.proto = iph->protocol; ++ break; ++ } ++ case __constant_htons(ETH_P_IPV6): ++ { ++ struct ipv6hdr *iph = ipv6_hdr(skb); ++ /* Hash ipv6 addresses into a u32. This isn't ideal, ++ * but the code is simple. */ ++ info.dst = jhash2(iph->daddr.s6_addr32, 4, q->perturbation); ++ info.src = jhash2(iph->saddr.s6_addr32, 4, q->perturbation); ++ if (iph->nexthdr == IPPROTO_TCP || ++ iph->nexthdr == IPPROTO_UDP || ++ iph->nexthdr == IPPROTO_SCTP || ++ iph->nexthdr == IPPROTO_DCCP || ++ iph->nexthdr == IPPROTO_ESP) ++ info.proto = *(u32*)&iph[1]; ++ else ++ info.proto = iph->nexthdr; ++ break; ++ } ++ default: ++ info.dst = (u32)(unsigned long)skb_dst(skb); ++ info.src = (u32)(unsigned long)skb->sk; ++ info.proto = skb->protocol; ++ } ++ ++ info.mark = skb->mark; ++ ++#ifdef CONFIG_NET_SCH_ESFQ_NFCT ++ /* defaults if there is no conntrack info */ ++ info.ctorigsrc = info.src; ++ info.ctorigdst = info.dst; ++ info.ctreplsrc = info.dst; ++ info.ctrepldst = info.src; ++ /* collect conntrack info */ ++ if (ct && ct != &nf_conntrack_untracked) { ++ if (skb->protocol == __constant_htons(ETH_P_IP)) { ++ info.ctorigsrc = ct->tuplehash[IP_CT_DIR_ORIGINAL].tuple.src.u3.ip; ++ info.ctorigdst = ct->tuplehash[IP_CT_DIR_ORIGINAL].tuple.dst.u3.ip; ++ info.ctreplsrc = ct->tuplehash[IP_CT_DIR_REPLY].tuple.src.u3.ip; ++ info.ctrepldst = ct->tuplehash[IP_CT_DIR_REPLY].tuple.dst.u3.ip; ++ } ++ else if (skb->protocol == __constant_htons(ETH_P_IPV6)) { ++ /* Again, hash ipv6 addresses into a single u32. */ ++ info.ctorigsrc = jhash2(ct->tuplehash[IP_CT_DIR_ORIGINAL].tuple.src.u3.ip6, 4, q->perturbation); ++ info.ctorigdst = jhash2(ct->tuplehash[IP_CT_DIR_ORIGINAL].tuple.dst.u3.ip6, 4, q->perturbation); ++ info.ctreplsrc = jhash2(ct->tuplehash[IP_CT_DIR_REPLY].tuple.src.u3.ip6, 4, q->perturbation); ++ info.ctrepldst = jhash2(ct->tuplehash[IP_CT_DIR_REPLY].tuple.dst.u3.ip6, 4, q->perturbation); ++ } ++ ++ } ++#endif ++ ++ switch(q->hash_kind) { ++ case TCA_SFQ_HASH_CLASSIC: ++ return esfq_jhash_3words(q, info.dst, info.src, info.proto); ++ case TCA_SFQ_HASH_DST: ++ return esfq_jhash_1word(q, info.dst); ++ case TCA_SFQ_HASH_SRC: ++ return esfq_jhash_1word(q, info.src); ++ case TCA_SFQ_HASH_FWMARK: ++ return esfq_jhash_1word(q, info.mark); ++#ifdef CONFIG_NET_SCH_ESFQ_NFCT ++ case TCA_SFQ_HASH_CTORIGDST: ++ return esfq_jhash_1word(q, info.ctorigdst); ++ case TCA_SFQ_HASH_CTORIGSRC: ++ return esfq_jhash_1word(q, info.ctorigsrc); ++ case TCA_SFQ_HASH_CTREPLDST: ++ return esfq_jhash_1word(q, info.ctrepldst); ++ case TCA_SFQ_HASH_CTREPLSRC: ++ return esfq_jhash_1word(q, info.ctreplsrc); ++ case TCA_SFQ_HASH_CTNATCHG: ++ { ++ if (info.ctorigdst == info.ctreplsrc) ++ return esfq_jhash_1word(q, info.ctorigsrc); ++ return esfq_jhash_1word(q, info.ctreplsrc); ++ } ++#endif ++ default: ++ if (net_ratelimit()) ++ printk(KERN_WARNING "ESFQ: Unknown hash method. Falling back to classic.\n"); ++ } ++ return esfq_jhash_3words(q, info.dst, info.src, info.proto); ++} ++ ++static inline void esfq_link(struct esfq_sched_data *q, esfq_index x) ++{ ++ esfq_index p, n; ++ int d = q->qs[x].qlen + q->depth; ++ ++ p = d; ++ n = q->dep[d].next; ++ q->dep[x].next = n; ++ q->dep[x].prev = p; ++ q->dep[p].next = q->dep[n].prev = x; ++} ++ ++static inline void esfq_dec(struct esfq_sched_data *q, esfq_index x) ++{ ++ esfq_index p, n; ++ ++ n = q->dep[x].next; ++ p = q->dep[x].prev; ++ q->dep[p].next = n; ++ q->dep[n].prev = p; ++ ++ if (n == p && q->max_depth == q->qs[x].qlen + 1) ++ q->max_depth--; ++ ++ esfq_link(q, x); ++} ++ ++static inline void esfq_inc(struct esfq_sched_data *q, esfq_index x) ++{ ++ esfq_index p, n; ++ int d; ++ ++ n = q->dep[x].next; ++ p = q->dep[x].prev; ++ q->dep[p].next = n; ++ q->dep[n].prev = p; ++ d = q->qs[x].qlen; ++ if (q->max_depth < d) ++ q->max_depth = d; ++ ++ esfq_link(q, x); ++} ++ ++static unsigned int esfq_drop(struct Qdisc *sch) ++{ ++ struct esfq_sched_data *q = qdisc_priv(sch); ++ esfq_index d = q->max_depth; ++ struct sk_buff *skb; ++ unsigned int len; ++ ++ /* Queue is full! Find the longest slot and ++ drop a packet from it */ ++ ++ if (d > 1) { ++ esfq_index x = q->dep[d+q->depth].next; ++ skb = q->qs[x].prev; ++ len = skb->len; ++ __skb_unlink(skb, &q->qs[x]); ++ kfree_skb(skb); ++ esfq_dec(q, x); ++ sch->q.qlen--; ++ sch->qstats.drops++; ++ sch->qstats.backlog -= len; ++ return len; ++ } ++ ++ if (d == 1) { ++ /* It is difficult to believe, but ALL THE SLOTS HAVE LENGTH 1. */ ++ d = q->next[q->tail]; ++ q->next[q->tail] = q->next[d]; ++ q->allot[q->next[d]] += q->quantum; ++ skb = q->qs[d].prev; ++ len = skb->len; ++ __skb_unlink(skb, &q->qs[d]); ++ kfree_skb(skb); ++ esfq_dec(q, d); ++ sch->q.qlen--; ++ q->ht[q->hash[d]] = q->depth; ++ sch->qstats.drops++; ++ sch->qstats.backlog -= len; ++ return len; ++ } ++ ++ return 0; ++} ++ ++static void esfq_q_enqueue(struct sk_buff *skb, struct esfq_sched_data *q, unsigned int end) ++{ ++ unsigned hash = esfq_hash(q, skb); ++ unsigned depth = q->depth; ++ esfq_index x; ++ ++ x = q->ht[hash]; ++ if (x == depth) { ++ q->ht[hash] = x = q->dep[depth].next; ++ q->hash[x] = hash; ++ } ++ ++ if (end == ESFQ_TAIL) ++ __skb_queue_tail(&q->qs[x], skb); ++ else ++ __skb_queue_head(&q->qs[x], skb); ++ ++ esfq_inc(q, x); ++ if (q->qs[x].qlen == 1) { /* The flow is new */ ++ if (q->tail == depth) { /* It is the first flow */ ++ q->tail = x; ++ q->next[x] = x; ++ q->allot[x] = q->quantum; ++ } else { ++ q->next[x] = q->next[q->tail]; ++ q->next[q->tail] = x; ++ q->tail = x; ++ } ++ } ++} ++ ++static int esfq_enqueue(struct sk_buff *skb, struct Qdisc* sch) ++{ ++ struct esfq_sched_data *q = qdisc_priv(sch); ++ esfq_q_enqueue(skb, q, ESFQ_TAIL); ++ sch->qstats.backlog += skb->len; ++ if (++sch->q.qlen < q->limit-1) { ++ sch->bstats.bytes += skb->len; ++ sch->bstats.packets++; ++ return 0; ++ } ++ ++ sch->qstats.drops++; ++ esfq_drop(sch); ++ return NET_XMIT_CN; ++} ++ ++static struct sk_buff *esfq_peek(struct Qdisc* sch) ++{ ++ struct esfq_sched_data *q = qdisc_priv(sch); ++ esfq_index a; ++ ++ /* No active slots */ ++ if (q->tail == q->depth) ++ return NULL; ++ ++ a = q->next[q->tail]; ++ return skb_peek(&q->qs[a]); ++} ++ ++static struct sk_buff *esfq_q_dequeue(struct esfq_sched_data *q) ++{ ++ struct sk_buff *skb; ++ unsigned depth = q->depth; ++ esfq_index a, old_a; ++ ++ /* No active slots */ ++ if (q->tail == depth) ++ return NULL; ++ ++ a = old_a = q->next[q->tail]; ++ ++ /* Grab packet */ ++ skb = __skb_dequeue(&q->qs[a]); ++ esfq_dec(q, a); ++ ++ /* Is the slot empty? */ ++ if (q->qs[a].qlen == 0) { ++ q->ht[q->hash[a]] = depth; ++ a = q->next[a]; ++ if (a == old_a) { ++ q->tail = depth; ++ return skb; ++ } ++ q->next[q->tail] = a; ++ q->allot[a] += q->quantum; ++ } else if ((q->allot[a] -= skb->len) <= 0) { ++ q->tail = a; ++ a = q->next[a]; ++ q->allot[a] += q->quantum; ++ } ++ ++ return skb; ++} ++ ++static struct sk_buff *esfq_dequeue(struct Qdisc* sch) ++{ ++ struct esfq_sched_data *q = qdisc_priv(sch); ++ struct sk_buff *skb; ++ ++ skb = esfq_q_dequeue(q); ++ if (skb == NULL) ++ return NULL; ++ sch->q.qlen--; ++ sch->qstats.backlog -= skb->len; ++ return skb; ++} ++ ++static void esfq_q_destroy(struct esfq_sched_data *q) ++{ ++ del_timer(&q->perturb_timer); ++ if(q->ht) ++ kfree(q->ht); ++ if(q->dep) ++ kfree(q->dep); ++ if(q->next) ++ kfree(q->next); ++ if(q->allot) ++ kfree(q->allot); ++ if(q->hash) ++ kfree(q->hash); ++ if(q->qs) ++ kfree(q->qs); ++} ++ ++static void esfq_destroy(struct Qdisc *sch) ++{ ++ struct esfq_sched_data *q = qdisc_priv(sch); ++ esfq_q_destroy(q); ++} ++ ++ ++static void esfq_reset(struct Qdisc* sch) ++{ ++ struct sk_buff *skb; ++ ++ while ((skb = esfq_dequeue(sch)) != NULL) ++ kfree_skb(skb); ++} ++ ++static void esfq_perturbation(unsigned long arg) ++{ ++ struct Qdisc *sch = (struct Qdisc*)arg; ++ struct esfq_sched_data *q = qdisc_priv(sch); ++ ++ q->perturbation = net_random()&0x1F; ++ ++ if (q->perturb_period) { ++ q->perturb_timer.expires = jiffies + q->perturb_period; ++ add_timer(&q->perturb_timer); ++ } ++} ++ ++static unsigned int esfq_check_hash(unsigned int kind) ++{ ++ switch (kind) { ++ case TCA_SFQ_HASH_CTORIGDST: ++ case TCA_SFQ_HASH_CTORIGSRC: ++ case TCA_SFQ_HASH_CTREPLDST: ++ case TCA_SFQ_HASH_CTREPLSRC: ++ case TCA_SFQ_HASH_CTNATCHG: ++#ifndef CONFIG_NET_SCH_ESFQ_NFCT ++ { ++ if (net_ratelimit()) ++ printk(KERN_WARNING "ESFQ: Conntrack hash types disabled in kernel config. Falling back to classic.\n"); ++ return TCA_SFQ_HASH_CLASSIC; ++ } ++#endif ++ case TCA_SFQ_HASH_CLASSIC: ++ case TCA_SFQ_HASH_DST: ++ case TCA_SFQ_HASH_SRC: ++ case TCA_SFQ_HASH_FWMARK: ++ return kind; ++ default: ++ { ++ if (net_ratelimit()) ++ printk(KERN_WARNING "ESFQ: Unknown hash type. Falling back to classic.\n"); ++ return TCA_SFQ_HASH_CLASSIC; ++ } ++ } ++} ++ ++static int esfq_q_init(struct esfq_sched_data *q, struct nlattr *opt) ++{ ++ struct tc_esfq_qopt *ctl = nla_data(opt); ++ esfq_index p = ~0U/2; ++ int i; ++ ++ if (opt && opt->nla_len < nla_attr_size(sizeof(*ctl))) ++ return -EINVAL; ++ ++ q->perturbation = 0; ++ q->hash_kind = TCA_SFQ_HASH_CLASSIC; ++ q->max_depth = 0; ++ if (opt == NULL) { ++ q->perturb_period = 0; ++ q->hash_divisor = 1024; ++ q->tail = q->limit = q->depth = 128; ++ ++ } else { ++ struct tc_esfq_qopt *ctl = nla_data(opt); ++ if (ctl->quantum) ++ q->quantum = ctl->quantum; ++ q->perturb_period = ctl->perturb_period*HZ; ++ q->hash_divisor = ctl->divisor ? : 1024; ++ q->tail = q->limit = q->depth = ctl->flows ? : 128; ++ ++ if ( q->depth > p - 1 ) ++ return -EINVAL; ++ ++ if (ctl->limit) ++ q->limit = min_t(u32, ctl->limit, q->depth); ++ ++ if (ctl->hash_kind) { ++ q->hash_kind = esfq_check_hash(ctl->hash_kind); ++ } ++ } ++ ++ q->ht = kmalloc(q->hash_divisor*sizeof(esfq_index), GFP_KERNEL); ++ if (!q->ht) ++ goto err_case; ++ q->dep = kmalloc((1+q->depth*2)*sizeof(struct esfq_head), GFP_KERNEL); ++ if (!q->dep) ++ goto err_case; ++ q->next = kmalloc(q->depth*sizeof(esfq_index), GFP_KERNEL); ++ if (!q->next) ++ goto err_case; ++ q->allot = kmalloc(q->depth*sizeof(short), GFP_KERNEL); ++ if (!q->allot) ++ goto err_case; ++ q->hash = kmalloc(q->depth*sizeof(unsigned short), GFP_KERNEL); ++ if (!q->hash) ++ goto err_case; ++ q->qs = kmalloc(q->depth*sizeof(struct sk_buff_head), GFP_KERNEL); ++ if (!q->qs) ++ goto err_case; ++ ++ for (i=0; i< q->hash_divisor; i++) ++ q->ht[i] = q->depth; ++ for (i=0; idepth; i++) { ++ skb_queue_head_init(&q->qs[i]); ++ q->dep[i+q->depth].next = i+q->depth; ++ q->dep[i+q->depth].prev = i+q->depth; ++ } ++ ++ for (i=0; idepth; i++) ++ esfq_link(q, i); ++ return 0; ++err_case: ++ esfq_q_destroy(q); ++ return -ENOBUFS; ++} ++ ++static int esfq_init(struct Qdisc *sch, struct nlattr *opt) ++{ ++ struct esfq_sched_data *q = qdisc_priv(sch); ++ int err; ++ ++ q->quantum = psched_mtu(qdisc_dev(sch)); /* default */ ++ if ((err = esfq_q_init(q, opt))) ++ return err; ++ ++ init_timer(&q->perturb_timer); ++ q->perturb_timer.data = (unsigned long)sch; ++ q->perturb_timer.function = esfq_perturbation; ++ if (q->perturb_period) { ++ q->perturb_timer.expires = jiffies + q->perturb_period; ++ add_timer(&q->perturb_timer); ++ } ++ ++ return 0; ++} ++ ++static int esfq_change(struct Qdisc *sch, struct nlattr *opt) ++{ ++ struct esfq_sched_data *q = qdisc_priv(sch); ++ struct esfq_sched_data new; ++ struct sk_buff *skb; ++ int err; ++ ++ /* set up new queue */ ++ memset(&new, 0, sizeof(struct esfq_sched_data)); ++ new.quantum = psched_mtu(qdisc_dev(sch)); /* default */ ++ if ((err = esfq_q_init(&new, opt))) ++ return err; ++ ++ /* copy all packets from the old queue to the new queue */ ++ sch_tree_lock(sch); ++ while ((skb = esfq_q_dequeue(q)) != NULL) ++ esfq_q_enqueue(skb, &new, ESFQ_TAIL); ++ ++ /* clean up the old queue */ ++ esfq_q_destroy(q); ++ ++ /* copy elements of the new queue into the old queue */ ++ q->perturb_period = new.perturb_period; ++ q->quantum = new.quantum; ++ q->limit = new.limit; ++ q->depth = new.depth; ++ q->hash_divisor = new.hash_divisor; ++ q->hash_kind = new.hash_kind; ++ q->tail = new.tail; ++ q->max_depth = new.max_depth; ++ q->ht = new.ht; ++ q->dep = new.dep; ++ q->next = new.next; ++ q->allot = new.allot; ++ q->hash = new.hash; ++ q->qs = new.qs; ++ ++ /* finish up */ ++ if (q->perturb_period) { ++ q->perturb_timer.expires = jiffies + q->perturb_period; ++ add_timer(&q->perturb_timer); ++ } else { ++ q->perturbation = 0; ++ } ++ sch_tree_unlock(sch); ++ return 0; ++} ++ ++static int esfq_dump(struct Qdisc *sch, struct sk_buff *skb) ++{ ++ struct esfq_sched_data *q = qdisc_priv(sch); ++ unsigned char *b = skb_tail_pointer(skb); ++ struct tc_esfq_qopt opt; ++ ++ opt.quantum = q->quantum; ++ opt.perturb_period = q->perturb_period/HZ; ++ ++ opt.limit = q->limit; ++ opt.divisor = q->hash_divisor; ++ opt.flows = q->depth; ++ opt.hash_kind = q->hash_kind; ++ ++ NLA_PUT(skb, TCA_OPTIONS, sizeof(opt), &opt); ++ ++ return skb->len; ++ ++nla_put_failure: ++ nlmsg_trim(skb, b); ++ return -1; ++} ++ ++static struct Qdisc_ops esfq_qdisc_ops = ++{ ++ .next = NULL, ++ .cl_ops = NULL, ++ .id = "esfq", ++ .priv_size = sizeof(struct esfq_sched_data), ++ .enqueue = esfq_enqueue, ++ .dequeue = esfq_dequeue, ++ .peek = esfq_peek, ++ .drop = esfq_drop, ++ .init = esfq_init, ++ .reset = esfq_reset, ++ .destroy = esfq_destroy, ++ .change = esfq_change, ++ .dump = esfq_dump, ++ .owner = THIS_MODULE, ++}; ++ ++static int __init esfq_module_init(void) ++{ ++ return register_qdisc(&esfq_qdisc_ops); ++} ++static void __exit esfq_module_exit(void) ++{ ++ unregister_qdisc(&esfq_qdisc_ops); ++} ++module_init(esfq_module_init) ++module_exit(esfq_module_exit) ++MODULE_LICENSE("GPL"); diff --git a/target/linux/generic/patches-2.6.39/621-sched_act_connmark.patch b/target/linux/generic/patches-2.6.39/621-sched_act_connmark.patch new file mode 100644 index 00000000000..c8c9b232a53 --- /dev/null +++ b/target/linux/generic/patches-2.6.39/621-sched_act_connmark.patch @@ -0,0 +1,171 @@ +--- /dev/null ++++ b/net/sched/act_connmark.c +@@ -0,0 +1,137 @@ ++/* ++ * Copyright (c) 2011 Felix Fietkau ++ * ++ * This program is free software; you can redistribute it and/or modify it ++ * under the terms and conditions of the GNU General Public License, ++ * version 2, as published by the Free Software Foundation. ++ * ++ * This program is distributed in the hope it will be useful, but WITHOUT ++ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or ++ * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for ++ * more details. ++ * ++ * You should have received a copy of the GNU General Public License along with ++ * this program; if not, write to the Free Software Foundation, Inc., 59 Temple ++ * Place - Suite 330, Boston, MA 02111-1307 USA. ++ */ ++ ++#include ++#include ++#include ++#include ++#include ++#include ++#include ++#include ++#include ++#include ++#include ++ ++#include ++#include ++ ++#define TCA_ACT_CONNMARK 20 ++ ++#define CONNMARK_TAB_MASK 3 ++static struct tcf_common *tcf_connmark_ht[CONNMARK_TAB_MASK + 1]; ++static u32 connmark_idx_gen; ++static DEFINE_RWLOCK(connmark_lock); ++ ++static struct tcf_hashinfo connmark_hash_info = { ++ .htab = tcf_connmark_ht, ++ .hmask = CONNMARK_TAB_MASK, ++ .lock = &connmark_lock, ++}; ++ ++static int tcf_connmark(struct sk_buff *skb, struct tc_action *a, ++ struct tcf_result *res) ++{ ++ struct nf_conn *c; ++ enum ip_conntrack_info ctinfo; ++ int proto; ++ int r; ++ ++ if (skb->protocol == htons(ETH_P_IP)) { ++ if (skb->len < sizeof(struct iphdr)) ++ goto out; ++ proto = PF_INET; ++ } else if (skb->protocol == htons(ETH_P_IPV6)) { ++ if (skb->len < sizeof(struct ipv6hdr)) ++ goto out; ++ proto = PF_INET6; ++ } else ++ goto out; ++ ++ r = nf_conntrack_in(dev_net(skb->dev), proto, NF_INET_PRE_ROUTING, skb); ++ if (r != NF_ACCEPT) ++ goto out; ++ ++ c = nf_ct_get(skb, &ctinfo); ++ if (!c) ++ goto out; ++ ++ skb->mark = c->mark; ++ nf_conntrack_put(skb->nfct); ++ skb->nfct = NULL; ++ ++out: ++ return TC_ACT_PIPE; ++} ++ ++static int tcf_connmark_init(struct nlattr *nla, struct nlattr *est, ++ struct tc_action *a, int ovr, int bind) ++{ ++ struct tcf_common *pc; ++ ++ pc = tcf_hash_create(0, est, a, sizeof(*pc), bind, ++ &connmark_idx_gen, &connmark_hash_info); ++ if (IS_ERR(pc)) ++ return PTR_ERR(pc); ++ ++ tcf_hash_insert(pc, &connmark_hash_info); ++ ++ return ACT_P_CREATED; ++} ++ ++static inline int tcf_connmark_cleanup(struct tc_action *a, int bind) ++{ ++ if (a->priv) ++ return tcf_hash_release(a->priv, bind, &connmark_hash_info); ++ return 0; ++} ++ ++static inline int tcf_connmark_dump(struct sk_buff *skb, struct tc_action *a, ++ int bind, int ref) ++{ ++ return skb->len; ++} ++ ++static struct tc_action_ops act_connmark_ops = { ++ .kind = "connmark", ++ .hinfo = &connmark_hash_info, ++ .type = TCA_ACT_CONNMARK, ++ .capab = TCA_CAP_NONE, ++ .owner = THIS_MODULE, ++ .act = tcf_connmark, ++ .dump = tcf_connmark_dump, ++ .cleanup = tcf_connmark_cleanup, ++ .init = tcf_connmark_init, ++ .walk = tcf_generic_walker, ++}; ++ ++MODULE_AUTHOR("Felix Fietkau "); ++MODULE_DESCRIPTION("Connection tracking mark restoring"); ++MODULE_LICENSE("GPL"); ++ ++static int __init connmark_init_module(void) ++{ ++ return tcf_register_action(&act_connmark_ops); ++} ++ ++static void __exit connmark_cleanup_module(void) ++{ ++ tcf_unregister_action(&act_connmark_ops); ++} ++ ++module_init(connmark_init_module); ++module_exit(connmark_cleanup_module); +--- a/net/sched/Kconfig ++++ b/net/sched/Kconfig +@@ -590,6 +590,18 @@ config NET_ACT_CSUM + To compile this code as a module, choose M here: the + module will be called act_csum. + ++config NET_ACT_CONNMARK ++ tristate "Connection Tracking Marking" ++ depends on NET_CLS_ACT ++ depends on NF_CONNTRACK ++ ---help--- ++ Say Y here to restore the connmark from a scheduler action ++ ++ If unsure, say N. ++ ++ To compile this code as a module, choose M here: the ++ module will be called act_connmark. ++ + config NET_CLS_IND + bool "Incoming device classification" + depends on NET_CLS_U32 || NET_CLS_FW +--- a/net/sched/Makefile ++++ b/net/sched/Makefile +@@ -16,6 +16,7 @@ obj-$(CONFIG_NET_ACT_PEDIT) += act_pedit + obj-$(CONFIG_NET_ACT_SIMP) += act_simple.o + obj-$(CONFIG_NET_ACT_SKBEDIT) += act_skbedit.o + obj-$(CONFIG_NET_ACT_CSUM) += act_csum.o ++obj-$(CONFIG_NET_ACT_CONNMARK) += act_connmark.o + obj-$(CONFIG_NET_SCH_FIFO) += sch_fifo.o + obj-$(CONFIG_NET_SCH_CBQ) += sch_cbq.o + obj-$(CONFIG_NET_SCH_HTB) += sch_htb.o diff --git a/target/linux/generic/patches-2.6.39/630-packet_socket_type.patch b/target/linux/generic/patches-2.6.39/630-packet_socket_type.patch new file mode 100644 index 00000000000..75b61290c34 --- /dev/null +++ b/target/linux/generic/patches-2.6.39/630-packet_socket_type.patch @@ -0,0 +1,132 @@ +This patch allows the user to specify desired packet types (outgoing, +broadcast, unicast, etc.) on packet sockets via setsockopt. +This can reduce the load in situations where only a limited number +of packet types are necessary + +Signed-off-by: Felix Fietkau + +--- a/include/linux/if_packet.h ++++ b/include/linux/if_packet.h +@@ -29,6 +29,8 @@ struct sockaddr_ll { + /* These ones are invisible by user level */ + #define PACKET_LOOPBACK 5 /* MC/BRD frame looped back */ + #define PACKET_FASTROUTE 6 /* Fastrouted frame */ ++#define PACKET_MASK_ANY 0xffffffff /* mask for packet type bits */ ++ + + /* Packet socket options */ + +@@ -49,6 +51,7 @@ struct sockaddr_ll { + #define PACKET_VNET_HDR 15 + #define PACKET_TX_TIMESTAMP 16 + #define PACKET_TIMESTAMP 17 ++#define PACKET_RECV_TYPE 18 + + struct tpacket_stats { + unsigned int tp_packets; +--- a/net/packet/af_packet.c ++++ b/net/packet/af_packet.c +@@ -210,6 +210,7 @@ struct packet_sock { + unsigned int tp_loss:1; + unsigned int tp_tstamp; + struct packet_type prot_hook ____cacheline_aligned_in_smp; ++ unsigned int pkt_type; + }; + + struct packet_skb_cb { +@@ -354,6 +355,7 @@ static int packet_rcv_spkt(struct sk_buf + { + struct sock *sk; + struct sockaddr_pkt *spkt; ++ struct packet_sock *po; + + /* + * When we registered the protocol we saved the socket in the data +@@ -361,6 +363,7 @@ static int packet_rcv_spkt(struct sk_buf + */ + + sk = pt->af_packet_priv; ++ po = pkt_sk(sk); + + /* + * Yank back the headers [hope the device set this +@@ -373,7 +376,7 @@ static int packet_rcv_spkt(struct sk_buf + * so that this procedure is noop. + */ + +- if (skb->pkt_type == PACKET_LOOPBACK) ++ if (!(po->pkt_type & (1 << skb->pkt_type))) + goto out; + + if (!net_eq(dev_net(dev), sock_net(sk))) +@@ -566,12 +569,12 @@ static int packet_rcv(struct sk_buff *sk + int skb_len = skb->len; + unsigned int snaplen, res; + +- if (skb->pkt_type == PACKET_LOOPBACK) +- goto drop; +- + sk = pt->af_packet_priv; + po = pkt_sk(sk); + ++ if (!(po->pkt_type & (1 << skb->pkt_type))) ++ goto drop; ++ + if (!net_eq(dev_net(dev), sock_net(sk))) + goto drop; + +@@ -687,12 +690,12 @@ static int tpacket_rcv(struct sk_buff *s + struct timespec ts; + struct skb_shared_hwtstamps *shhwtstamps = skb_hwtstamps(skb); + +- if (skb->pkt_type == PACKET_LOOPBACK) +- goto drop; +- + sk = pt->af_packet_priv; + po = pkt_sk(sk); + ++ if (!(po->pkt_type & (1 << skb->pkt_type))) ++ goto drop; ++ + if (!net_eq(dev_net(dev), sock_net(sk))) + goto drop; + +@@ -1523,6 +1526,7 @@ static int packet_create(struct net *net + spin_lock_init(&po->bind_lock); + mutex_init(&po->pg_vec_lock); + po->prot_hook.func = packet_rcv; ++ po->pkt_type = PACKET_MASK_ANY & ~(1 << PACKET_LOOPBACK); + + if (sock->type == SOCK_PACKET) + po->prot_hook.func = packet_rcv_spkt; +@@ -2091,6 +2095,16 @@ packet_setsockopt(struct socket *sock, i + po->tp_tstamp = val; + return 0; + } ++ case PACKET_RECV_TYPE: ++ { ++ unsigned int val; ++ if (optlen != sizeof(val)) ++ return -EINVAL; ++ if (copy_from_user(&val, optval, sizeof(val))) ++ return -EFAULT; ++ po->pkt_type = val & ~PACKET_LOOPBACK; ++ return 0; ++ } + default: + return -ENOPROTOOPT; + } +@@ -2148,6 +2162,13 @@ static int packet_getsockopt(struct sock + + data = &val; + break; ++ case PACKET_RECV_TYPE: ++ if (len > sizeof(unsigned int)) ++ len = sizeof(unsigned int); ++ val = po->pkt_type; ++ ++ data = &val; ++ break; + case PACKET_VERSION: + if (len > sizeof(int)) + len = sizeof(int); diff --git a/target/linux/generic/patches-2.6.39/630-phy_packets.patch b/target/linux/generic/patches-2.6.39/630-phy_packets.patch deleted file mode 100644 index b8a76b0ce08..00000000000 --- a/target/linux/generic/patches-2.6.39/630-phy_packets.patch +++ /dev/null @@ -1,63 +0,0 @@ ---- a/drivers/net/phy/phy_device.c -+++ b/drivers/net/phy/phy_device.c -@@ -149,6 +149,18 @@ int phy_scan_fixups(struct phy_device *p - } - EXPORT_SYMBOL(phy_scan_fixups); - -+static int generic_receive_skb(struct sk_buff *skb) -+{ -+ skb->protocol = eth_type_trans(skb, skb->dev); -+ return netif_receive_skb(skb); -+} -+ -+static int generic_rx(struct sk_buff *skb) -+{ -+ skb->protocol = eth_type_trans(skb, skb->dev); -+ return netif_rx(skb); -+} -+ - static struct phy_device* phy_device_create(struct mii_bus *bus, - int addr, int phy_id) - { -@@ -180,6 +192,8 @@ static struct phy_device* phy_device_cre - dev_set_name(&dev->dev, PHY_ID_FMT, bus->id, addr); - - dev->state = PHY_DOWN; -+ dev->netif_receive_skb = &generic_receive_skb; -+ dev->netif_rx = &generic_rx; - - mutex_init(&dev->lock); - INIT_DELAYED_WORK(&dev->state_queue, phy_state_machine); ---- a/include/linux/phy.h -+++ b/include/linux/phy.h -@@ -332,6 +332,20 @@ struct phy_device { - void (*adjust_link)(struct net_device *dev); - - void (*adjust_state)(struct net_device *dev); -+ -+ /* -+ * By default these point to the original functions -+ * with the same name. adding them to the phy_device -+ * allows the phy driver to override them for packet -+ * mangling if the ethernet driver supports it -+ * This is required to support some really horrible -+ * switches such as the Marvell 88E6060 -+ */ -+ int (*netif_receive_skb)(struct sk_buff *skb); -+ int (*netif_rx)(struct sk_buff *skb); -+ -+ /* alignment offset for packets */ -+ int pkt_align; - }; - #define to_phy_device(d) container_of(d, struct phy_device, dev) - ---- a/include/linux/netdevice.h -+++ b/include/linux/netdevice.h -@@ -1182,6 +1182,7 @@ struct net_device { - void *ax25_ptr; /* AX.25 specific data */ - struct wireless_dev *ieee80211_ptr; /* IEEE 802.11 specific data, - assign before registering */ -+ void *phy_ptr; /* PHY device specific data */ - - /* - * Cache lines mostly used on receive path (including eth_type_trans()) diff --git a/target/linux/generic/patches-2.6.39/640-bridge_no_eap_forward.patch b/target/linux/generic/patches-2.6.39/640-bridge_no_eap_forward.patch new file mode 100644 index 00000000000..dac898276d3 --- /dev/null +++ b/target/linux/generic/patches-2.6.39/640-bridge_no_eap_forward.patch @@ -0,0 +1,15 @@ +--- a/net/bridge/br_input.c ++++ b/net/bridge/br_input.c +@@ -77,7 +77,11 @@ int br_handle_frame_finish(struct sk_buf + + dst = NULL; + +- if (is_multicast_ether_addr(dest)) { ++ if (skb->protocol == htons(ETH_P_PAE)) { ++ skb2 = skb; ++ /* Do not forward 802.1x/EAP frames */ ++ skb = NULL; ++ } else if (is_multicast_ether_addr(dest)) { + mdst = br_mdb_get(br, skb); + if (mdst || BR_INPUT_SKB_CB_MROUTERS_ONLY(skb)) { + if ((mdst && mdst->mglist) || diff --git a/target/linux/generic/patches-2.6.39/641-bridge_always_accept_eap.patch b/target/linux/generic/patches-2.6.39/641-bridge_always_accept_eap.patch new file mode 100644 index 00000000000..b3a793e49b1 --- /dev/null +++ b/target/linux/generic/patches-2.6.39/641-bridge_always_accept_eap.patch @@ -0,0 +1,11 @@ +--- a/net/bridge/br_input.c ++++ b/net/bridge/br_input.c +@@ -64,7 +64,7 @@ int br_handle_frame_finish(struct sk_buf + br_multicast_rcv(br, p, skb)) + goto drop; + +- if (p->state == BR_STATE_LEARNING) ++ if ((p->state == BR_STATE_LEARNING) && skb->protocol != htons(ETH_P_PAE)) + goto drop; + + BR_INPUT_SKB_CB(skb)->brdev = br->dev; diff --git a/target/linux/generic/patches-2.6.39/642-bridge_port_isolate.patch b/target/linux/generic/patches-2.6.39/642-bridge_port_isolate.patch new file mode 100644 index 00000000000..c051a29f2d2 --- /dev/null +++ b/target/linux/generic/patches-2.6.39/642-bridge_port_isolate.patch @@ -0,0 +1,103 @@ +--- a/net/bridge/br_private.h ++++ b/net/bridge/br_private.h +@@ -132,6 +132,7 @@ struct net_bridge_port + + unsigned long flags; + #define BR_HAIRPIN_MODE 0x00000001 ++#define BR_ISOLATE_MODE 0x00000002 + + #ifdef CONFIG_BRIDGE_IGMP_SNOOPING + u32 multicast_startup_queries_sent; +--- a/net/bridge/br_sysfs_if.c ++++ b/net/bridge/br_sysfs_if.c +@@ -159,6 +159,22 @@ static ssize_t store_hairpin_mode(struct + static BRPORT_ATTR(hairpin_mode, S_IRUGO | S_IWUSR, + show_hairpin_mode, store_hairpin_mode); + ++static ssize_t show_isolate_mode(struct net_bridge_port *p, char *buf) ++{ ++ int isolate_mode = (p->flags & BR_ISOLATE_MODE) ? 1 : 0; ++ return sprintf(buf, "%d\n", isolate_mode); ++} ++static ssize_t store_isolate_mode(struct net_bridge_port *p, unsigned long v) ++{ ++ if (v) ++ p->flags |= BR_ISOLATE_MODE; ++ else ++ p->flags &= ~BR_ISOLATE_MODE; ++ return 0; ++} ++static BRPORT_ATTR(isolate_mode, S_IRUGO | S_IWUSR, ++ show_isolate_mode, store_isolate_mode); ++ + #ifdef CONFIG_BRIDGE_IGMP_SNOOPING + static ssize_t show_multicast_router(struct net_bridge_port *p, char *buf) + { +@@ -191,6 +207,7 @@ static struct brport_attribute *brport_a + &brport_attr_hold_timer, + &brport_attr_flush, + &brport_attr_hairpin_mode, ++ &brport_attr_isolate_mode, + #ifdef CONFIG_BRIDGE_IGMP_SNOOPING + &brport_attr_multicast_router, + #endif +--- a/net/bridge/br_input.c ++++ b/net/bridge/br_input.c +@@ -95,7 +95,8 @@ int br_handle_frame_finish(struct sk_buf + skb2 = skb; + + br->dev->stats.multicast++; +- } else if ((dst = __br_fdb_get(br, dest)) && dst->is_local) { ++ } else if ((p->flags & BR_ISOLATE_MODE) || ++ ((dst = __br_fdb_get(br, dest)) && dst->is_local)) { + skb2 = skb; + /* Do not forward the packet since it's local. */ + skb = NULL; +--- a/net/bridge/br_forward.c ++++ b/net/bridge/br_forward.c +@@ -109,7 +109,7 @@ void br_deliver(const struct net_bridge_ + /* called with rcu_read_lock */ + void br_forward(const struct net_bridge_port *to, struct sk_buff *skb, struct sk_buff *skb0) + { +- if (should_deliver(to, skb)) { ++ if (should_deliver(to, skb) && !(to->flags & BR_ISOLATE_MODE)) { + if (skb0) + deliver_clone(to, skb, __br_forward); + else +@@ -164,7 +164,8 @@ out: + static void br_flood(struct net_bridge *br, struct sk_buff *skb, + struct sk_buff *skb0, + void (*__packet_hook)(const struct net_bridge_port *p, +- struct sk_buff *skb)) ++ struct sk_buff *skb), ++ bool forward) + { + struct net_bridge_port *p; + struct net_bridge_port *prev; +@@ -172,6 +173,9 @@ static void br_flood(struct net_bridge * + prev = NULL; + + list_for_each_entry_rcu(p, &br->port_list, list) { ++ if (forward && (p->flags & BR_ISOLATE_MODE)) ++ continue; ++ + prev = maybe_deliver(prev, p, skb, __packet_hook); + if (IS_ERR(prev)) + goto out; +@@ -195,14 +199,14 @@ out: + /* called with rcu_read_lock */ + void br_flood_deliver(struct net_bridge *br, struct sk_buff *skb) + { +- br_flood(br, skb, NULL, __br_deliver); ++ br_flood(br, skb, NULL, __br_deliver, false); + } + + /* called under bridge lock */ + void br_flood_forward(struct net_bridge *br, struct sk_buff *skb, + struct sk_buff *skb2) + { +- br_flood(br, skb, skb2, __br_forward); ++ br_flood(br, skb, skb2, __br_forward, true); + } + + #ifdef CONFIG_BRIDGE_IGMP_SNOOPING diff --git a/target/linux/generic/patches-2.6.39/650-pppoe_header_pad.patch b/target/linux/generic/patches-2.6.39/650-pppoe_header_pad.patch new file mode 100644 index 00000000000..4875d5f23f2 --- /dev/null +++ b/target/linux/generic/patches-2.6.39/650-pppoe_header_pad.patch @@ -0,0 +1,20 @@ +--- a/drivers/net/pppoe.c ++++ b/drivers/net/pppoe.c +@@ -855,7 +855,7 @@ static int pppoe_sendmsg(struct kiocb *i + goto end; + + +- skb = sock_wmalloc(sk, total_len + dev->hard_header_len + 32, ++ skb = sock_wmalloc(sk, total_len + dev->hard_header_len + 32 + NET_SKB_PAD, + 0, GFP_KERNEL); + if (!skb) { + error = -ENOMEM; +@@ -863,7 +863,7 @@ static int pppoe_sendmsg(struct kiocb *i + } + + /* Reserve space for headers. */ +- skb_reserve(skb, dev->hard_header_len); ++ skb_reserve(skb, dev->hard_header_len + NET_SKB_PAD); + skb_reset_network_header(skb); + + skb->dev = dev; diff --git a/target/linux/generic/patches-2.6.39/650-swconfig.patch b/target/linux/generic/patches-2.6.39/650-swconfig.patch deleted file mode 100644 index 6825037ce90..00000000000 --- a/target/linux/generic/patches-2.6.39/650-swconfig.patch +++ /dev/null @@ -1,25 +0,0 @@ ---- a/drivers/net/phy/Kconfig -+++ b/drivers/net/phy/Kconfig -@@ -13,6 +13,12 @@ menuconfig PHYLIB - - if PHYLIB - -+config SWCONFIG -+ tristate "Switch configuration API" -+ ---help--- -+ Switch configuration API using netlink. This allows -+ you to configure the VLAN features of certain switches. -+ - comment "MII PHY device drivers" - - config MARVELL_PHY ---- a/drivers/net/phy/Makefile -+++ b/drivers/net/phy/Makefile -@@ -3,6 +3,7 @@ - libphy-objs := phy.o phy_device.o mdio_bus.o - - obj-$(CONFIG_PHYLIB) += libphy.o -+obj-$(CONFIG_SWCONFIG) += swconfig.o - obj-$(CONFIG_MARVELL_PHY) += marvell.o - obj-$(CONFIG_DAVICOM_PHY) += davicom.o - obj-$(CONFIG_CICADA_PHY) += cicada.o diff --git a/target/linux/generic/patches-2.6.39/651-wireless_mesh_header.patch b/target/linux/generic/patches-2.6.39/651-wireless_mesh_header.patch new file mode 100644 index 00000000000..48c4c2a153e --- /dev/null +++ b/target/linux/generic/patches-2.6.39/651-wireless_mesh_header.patch @@ -0,0 +1,11 @@ +--- a/include/linux/netdevice.h ++++ b/include/linux/netdevice.h +@@ -148,7 +148,7 @@ static inline bool dev_xmit_complete(int + */ + + #if defined(CONFIG_WLAN) || defined(CONFIG_AX25) || defined(CONFIG_AX25_MODULE) +-# if defined(CONFIG_MAC80211_MESH) ++# if 1 || defined(CONFIG_MAC80211_MESH) + # define LL_MAX_HEADER 128 + # else + # define LL_MAX_HEADER 96 diff --git a/target/linux/generic/patches-2.6.39/660-phy_mvswitch.patch b/target/linux/generic/patches-2.6.39/660-phy_mvswitch.patch deleted file mode 100644 index b5fef7668e5..00000000000 --- a/target/linux/generic/patches-2.6.39/660-phy_mvswitch.patch +++ /dev/null @@ -1,22 +0,0 @@ ---- a/drivers/net/phy/Kconfig -+++ b/drivers/net/phy/Kconfig -@@ -102,6 +102,9 @@ config ADM6996_PHY - ---help--- - Currently supports the ADM6996F switch - -+config MVSWITCH_PHY -+ tristate "Driver for Marvell 88E6060 switches" -+ - config FIXED_PHY - bool "Driver for MDIO Bus/PHY emulation with fixed speed/link PHYs" - depends on PHYLIB=y ---- a/drivers/net/phy/Makefile -+++ b/drivers/net/phy/Makefile -@@ -15,6 +15,7 @@ obj-$(CONFIG_BROADCOM_PHY) += broadcom.o - obj-$(CONFIG_BCM63XX_PHY) += bcm63xx.o - obj-$(CONFIG_ICPLUS_PHY) += icplus.o - obj-$(CONFIG_ADM6996_PHY) += adm6996.o -+obj-$(CONFIG_MVSWITCH_PHY) += mvswitch.o - obj-$(CONFIG_REALTEK_PHY) += realtek.o - obj-$(CONFIG_LSI_ET1011C_PHY) += et1011c.o - obj-$(CONFIG_FIXED_PHY) += fixed.o diff --git a/target/linux/generic/patches-2.6.39/670-phy_ip175c.patch b/target/linux/generic/patches-2.6.39/670-phy_ip175c.patch deleted file mode 100644 index d99ca617997..00000000000 --- a/target/linux/generic/patches-2.6.39/670-phy_ip175c.patch +++ /dev/null @@ -1,23 +0,0 @@ ---- a/drivers/net/phy/Kconfig -+++ b/drivers/net/phy/Kconfig -@@ -105,6 +105,10 @@ config ADM6996_PHY - config MVSWITCH_PHY - tristate "Driver for Marvell 88E6060 switches" - -+config IP17XX_PHY -+ tristate "Driver for IC+ IP17xx switches" -+ select SWCONFIG -+ - config FIXED_PHY - bool "Driver for MDIO Bus/PHY emulation with fixed speed/link PHYs" - depends on PHYLIB=y ---- a/drivers/net/phy/Makefile -+++ b/drivers/net/phy/Makefile -@@ -16,6 +16,7 @@ obj-$(CONFIG_BCM63XX_PHY) += bcm63xx.o - obj-$(CONFIG_ICPLUS_PHY) += icplus.o - obj-$(CONFIG_ADM6996_PHY) += adm6996.o - obj-$(CONFIG_MVSWITCH_PHY) += mvswitch.o -+obj-$(CONFIG_IP17XX_PHY) += ip17xx.o - obj-$(CONFIG_REALTEK_PHY) += realtek.o - obj-$(CONFIG_LSI_ET1011C_PHY) += et1011c.o - obj-$(CONFIG_FIXED_PHY) += fixed.o diff --git a/target/linux/generic/patches-2.6.39/680-phy_ar8216.patch b/target/linux/generic/patches-2.6.39/680-phy_ar8216.patch deleted file mode 100644 index a7afdfd820e..00000000000 --- a/target/linux/generic/patches-2.6.39/680-phy_ar8216.patch +++ /dev/null @@ -1,23 +0,0 @@ ---- a/drivers/net/phy/Kconfig -+++ b/drivers/net/phy/Kconfig -@@ -109,6 +109,10 @@ config IP17XX_PHY - tristate "Driver for IC+ IP17xx switches" - select SWCONFIG - -+config AR8216_PHY -+ tristate "Driver for Atheros AR8216 switches" -+ select SWCONFIG -+ - config FIXED_PHY - bool "Driver for MDIO Bus/PHY emulation with fixed speed/link PHYs" - depends on PHYLIB=y ---- a/drivers/net/phy/Makefile -+++ b/drivers/net/phy/Makefile -@@ -18,6 +18,7 @@ obj-$(CONFIG_ADM6996_PHY) += adm6996.o - obj-$(CONFIG_MVSWITCH_PHY) += mvswitch.o - obj-$(CONFIG_IP17XX_PHY) += ip17xx.o - obj-$(CONFIG_REALTEK_PHY) += realtek.o -+obj-$(CONFIG_AR8216_PHY) += ar8216.o - obj-$(CONFIG_LSI_ET1011C_PHY) += et1011c.o - obj-$(CONFIG_FIXED_PHY) += fixed.o - obj-$(CONFIG_MDIO_BITBANG) += mdio-bitbang.o diff --git a/target/linux/generic/patches-2.6.39/690-phy_rtl8306.patch b/target/linux/generic/patches-2.6.39/690-phy_rtl8306.patch deleted file mode 100644 index cd5e1a88b23..00000000000 --- a/target/linux/generic/patches-2.6.39/690-phy_rtl8306.patch +++ /dev/null @@ -1,23 +0,0 @@ ---- a/drivers/net/phy/Kconfig -+++ b/drivers/net/phy/Kconfig -@@ -113,6 +113,10 @@ config AR8216_PHY - tristate "Driver for Atheros AR8216 switches" - select SWCONFIG - -+config RTL8306_PHY -+ tristate "Driver for Realtek RTL8306S switches" -+ select SWCONFIG -+ - config FIXED_PHY - bool "Driver for MDIO Bus/PHY emulation with fixed speed/link PHYs" - depends on PHYLIB=y ---- a/drivers/net/phy/Makefile -+++ b/drivers/net/phy/Makefile -@@ -19,6 +19,7 @@ obj-$(CONFIG_MVSWITCH_PHY) += mvswitch.o - obj-$(CONFIG_IP17XX_PHY) += ip17xx.o - obj-$(CONFIG_REALTEK_PHY) += realtek.o - obj-$(CONFIG_AR8216_PHY) += ar8216.o -+obj-$(CONFIG_RTL8306_PHY) += rtl8306.o - obj-$(CONFIG_LSI_ET1011C_PHY) += et1011c.o - obj-$(CONFIG_FIXED_PHY) += fixed.o - obj-$(CONFIG_MDIO_BITBANG) += mdio-bitbang.o diff --git a/target/linux/generic/patches-2.6.39/691-phy_rtl8366.patch b/target/linux/generic/patches-2.6.39/691-phy_rtl8366.patch deleted file mode 100644 index c4599969cbd..00000000000 --- a/target/linux/generic/patches-2.6.39/691-phy_rtl8366.patch +++ /dev/null @@ -1,44 +0,0 @@ ---- a/drivers/net/phy/Kconfig -+++ b/drivers/net/phy/Kconfig -@@ -155,4 +155,29 @@ config MDIO_OCTEON - - If in doubt, say Y. - -+config RTL8366_SMI -+ tristate "Driver for the RTL8366 SMI interface" -+ depends on GENERIC_GPIO -+ ---help--- -+ This module implements the SMI interface protocol which is used -+ by some RTL8366 ethernet switch devices via the generic GPIO API. -+ -+if RTL8366_SMI -+ -+config RTL8366S_PHY -+ tristate "Driver for the Realtek RTL8366S switch" -+ select SWCONFIG -+ -+config RTL8366RB_PHY -+ tristate "Driver for the Realtek RTL8366RB switch" -+ select SWCONFIG -+ -+config RTL8366S_PHY_DEBUG_FS -+ bool "RTL8366 switch driver DEBUG_FS support" -+ depends on RTL8366S_PHY || RTL8366RB_PHY -+ depends on DEBUG_FS -+ default n -+ -+endif # RTL8366_SMI -+ - endif # PHYLIB ---- a/drivers/net/phy/Makefile -+++ b/drivers/net/phy/Makefile -@@ -20,6 +20,9 @@ obj-$(CONFIG_IP17XX_PHY) += ip17xx.o - obj-$(CONFIG_REALTEK_PHY) += realtek.o - obj-$(CONFIG_AR8216_PHY) += ar8216.o - obj-$(CONFIG_RTL8306_PHY) += rtl8306.o -+obj-$(CONFIG_RTL8366_SMI) += rtl8366_smi.o -+obj-$(CONFIG_RTL8366S_PHY) += rtl8366s.o -+obj-$(CONFIG_RTL8366RB_PHY) += rtl8366rb.o - obj-$(CONFIG_LSI_ET1011C_PHY) += et1011c.o - obj-$(CONFIG_FIXED_PHY) += fixed.o - obj-$(CONFIG_MDIO_BITBANG) += mdio-bitbang.o diff --git a/target/linux/generic/patches-2.6.39/700-rtc7301.patch b/target/linux/generic/patches-2.6.39/700-rtc7301.patch deleted file mode 100644 index 75f71d76017..00000000000 --- a/target/linux/generic/patches-2.6.39/700-rtc7301.patch +++ /dev/null @@ -1,250 +0,0 @@ ---- a/drivers/rtc/Kconfig -+++ b/drivers/rtc/Kconfig -@@ -677,6 +677,15 @@ config RTC_DRV_NUC900 - If you say yes here you get support for the RTC subsystem of the - NUC910/NUC920 used in embedded systems. - -+config RTC_DRV_RTC7301 -+ tristate "Epson RTC-7301 SF/DG" -+ help -+ If you say Y here you will get support for the -+ Epson RTC-7301 SF/DG RTC chips. -+ -+ This driver can also be built as a module. If so, the module -+ will be called rtc-7301. -+ - comment "on-CPU RTC drivers" - - config RTC_DRV_DAVINCI ---- a/drivers/rtc/Makefile -+++ b/drivers/rtc/Makefile -@@ -81,6 +81,7 @@ obj-$(CONFIG_RTC_DRV_RP5C01) += rtc-rp5c - obj-$(CONFIG_RTC_DRV_RS5C313) += rtc-rs5c313.o - obj-$(CONFIG_RTC_DRV_RS5C348) += rtc-rs5c348.o - obj-$(CONFIG_RTC_DRV_RS5C372) += rtc-rs5c372.o -+obj-$(CONFIG_RTC_DRV_RTC7301) += rtc-rtc7301.o - obj-$(CONFIG_RTC_DRV_RX8025) += rtc-rx8025.o - obj-$(CONFIG_RTC_DRV_RX8581) += rtc-rx8581.o - obj-$(CONFIG_RTC_DRV_S35390A) += rtc-s35390a.o ---- /dev/null -+++ b/drivers/rtc/rtc-rtc7301.c -@@ -0,0 +1,219 @@ -+/* -+ * Driver for Epson RTC-7301SF/DG -+ * -+ * Copyright (C) 2009 Jose Vasconcellos -+ * -+ * This program is free software; you can redistribute it and/or modify -+ * it under the terms of the GNU General Public License version 2 as -+ * published by the Free Software Foundation. -+ */ -+ -+#include -+#include -+#include -+#include -+#include -+#include -+ -+#define RTC_NAME "rtc7301" -+#define RTC_VERSION "0.1" -+ -+/* Epson RTC-7301 register addresses */ -+#define RTC7301_SEC 0x00 -+#define RTC7301_SEC10 0x01 -+#define RTC7301_MIN 0x02 -+#define RTC7301_MIN10 0x03 -+#define RTC7301_HOUR 0x04 -+#define RTC7301_HOUR10 0x05 -+#define RTC7301_WEEKDAY 0x06 -+#define RTC7301_DAY 0x07 -+#define RTC7301_DAY10 0x08 -+#define RTC7301_MON 0x09 -+#define RTC7301_MON10 0x0A -+#define RTC7301_YEAR 0x0B -+#define RTC7301_YEAR10 0x0C -+#define RTC7301_YEAR100 0x0D -+#define RTC7301_YEAR1000 0x0E -+#define RTC7301_CTRLREG 0x0F -+ -+static uint8_t __iomem *rtc7301_base; -+ -+#define read_reg(offset) (readb(rtc7301_base + offset) & 0xf) -+#define write_reg(offset, data) writeb(data, rtc7301_base + (offset)) -+ -+#define rtc7301_isbusy() (read_reg(RTC7301_CTRLREG) & 1) -+ -+static void rtc7301_init_settings(void) -+{ -+ int i; -+ -+ write_reg(RTC7301_CTRLREG, 2); -+ write_reg(RTC7301_YEAR1000, 2); -+ udelay(122); -+ -+ /* bank 1 */ -+ write_reg(RTC7301_CTRLREG, 6); -+ for (i=0; i<15; i++) -+ write_reg(i, 0); -+ -+ /* bank 2 */ -+ write_reg(RTC7301_CTRLREG, 14); -+ for (i=0; i<15; i++) -+ write_reg(i, 0); -+ write_reg(RTC7301_CTRLREG, 0); -+} -+ -+static int rtc7301_get_datetime(struct device *dev, struct rtc_time *dt) -+{ -+ int cnt; -+ uint8_t buf[16]; -+ -+ cnt = 0; -+ while (rtc7301_isbusy()) { -+ udelay(244); -+ if (cnt++ > 100) { -+ dev_err(dev, "%s: timeout error %x\n", __func__, rtc7301_base[RTC7301_CTRLREG]); -+ return -EIO; -+ } -+ } -+ -+ for (cnt=0; cnt<16; cnt++) -+ buf[cnt] = read_reg(cnt); -+ -+ if (buf[RTC7301_SEC10] & 8) { -+ dev_err(dev, "%s: RTC not set\n", __func__); -+ return -EINVAL; -+ } -+ -+ memset(dt, 0, sizeof(*dt)); -+ -+ dt->tm_sec = buf[RTC7301_SEC] + buf[RTC7301_SEC10]*10; -+ dt->tm_min = buf[RTC7301_MIN] + buf[RTC7301_MIN10]*10; -+ dt->tm_hour = buf[RTC7301_HOUR] + buf[RTC7301_HOUR10]*10; -+ -+ dt->tm_mday = buf[RTC7301_DAY] + buf[RTC7301_DAY10]*10; -+ dt->tm_mon = buf[RTC7301_MON] + buf[RTC7301_MON10]*10 - 1; -+ dt->tm_year = buf[RTC7301_YEAR] + buf[RTC7301_YEAR10]*10 + -+ buf[RTC7301_YEAR100]*100 + -+ ((buf[RTC7301_YEAR1000] & 3)*1000) - 1900; -+ -+ /* the rtc device may contain illegal values on power up -+ * according to the data sheet. make sure they are valid. -+ */ -+ -+ return rtc_valid_tm(dt); -+} -+ -+static int rtc7301_set_datetime(struct device *dev, struct rtc_time *dt) -+{ -+ int data; -+ -+ data = dt->tm_year + 1900; -+ if (data >= 2100 || data < 1900) -+ return -EINVAL; -+ -+ write_reg(RTC7301_CTRLREG, 2); -+ udelay(122); -+ -+ data = bin2bcd(dt->tm_sec); -+ write_reg(RTC7301_SEC, data); -+ write_reg(RTC7301_SEC10, (data >> 4)); -+ -+ data = bin2bcd(dt->tm_min); -+ write_reg(RTC7301_MIN, data ); -+ write_reg(RTC7301_MIN10, (data >> 4)); -+ -+ data = bin2bcd(dt->tm_hour); -+ write_reg(RTC7301_HOUR, data); -+ write_reg(RTC7301_HOUR10, (data >> 4)); -+ -+ data = bin2bcd(dt->tm_mday); -+ write_reg(RTC7301_DAY, data); -+ write_reg(RTC7301_DAY10, (data>> 4)); -+ -+ data = bin2bcd(dt->tm_mon + 1); -+ write_reg(RTC7301_MON, data); -+ write_reg(RTC7301_MON10, (data >> 4)); -+ -+ data = bin2bcd(dt->tm_year % 100); -+ write_reg(RTC7301_YEAR, data); -+ write_reg(RTC7301_YEAR10, (data >> 4)); -+ data = bin2bcd((1900 + dt->tm_year) / 100); -+ write_reg(RTC7301_YEAR100, data); -+ -+ data = bin2bcd(dt->tm_wday); -+ write_reg(RTC7301_WEEKDAY, data); -+ -+ write_reg(RTC7301_CTRLREG, 0); -+ -+ return 0; -+} -+ -+static const struct rtc_class_ops rtc7301_rtc_ops = { -+ .read_time = rtc7301_get_datetime, -+ .set_time = rtc7301_set_datetime, -+}; -+ -+static int __devinit rtc7301_probe(struct platform_device *pdev) -+{ -+ struct rtc_device *rtc; -+ struct resource *res; -+ -+ res = platform_get_resource(pdev, IORESOURCE_MEM, 0); -+ if (!res) -+ return -ENOENT; -+ -+ rtc7301_base = ioremap_nocache(res->start, 0x1000 /*res->end - res->start + 1*/); -+ if (!rtc7301_base) -+ return -EINVAL; -+ -+ rtc = rtc_device_register(RTC_NAME, &pdev->dev, -+ &rtc7301_rtc_ops, THIS_MODULE); -+ if (IS_ERR(rtc)) { -+ iounmap(rtc7301_base); -+ return PTR_ERR(rtc); -+ } -+ -+ platform_set_drvdata(pdev, rtc); -+ -+ rtc7301_init_settings(); -+ return 0; -+} -+ -+static int __devexit rtc7301_remove(struct platform_device *pdev) -+{ -+ struct rtc_device *rtc = platform_get_drvdata(pdev); -+ -+ if (rtc) -+ rtc_device_unregister(rtc); -+ if (rtc7301_base) -+ iounmap(rtc7301_base); -+ return 0; -+} -+ -+static struct platform_driver rtc7301_driver = { -+ .driver = { -+ .name = RTC_NAME, -+ .owner = THIS_MODULE, -+ }, -+ .probe = rtc7301_probe, -+ .remove = __devexit_p(rtc7301_remove), -+}; -+ -+static __init int rtc7301_init(void) -+{ -+ return platform_driver_register(&rtc7301_driver); -+} -+module_init(rtc7301_init); -+ -+static __exit void rtc7301_exit(void) -+{ -+ platform_driver_unregister(&rtc7301_driver); -+} -+module_exit(rtc7301_exit); -+ -+MODULE_DESCRIPTION("Epson 7301 RTC driver"); -+MODULE_AUTHOR("Jose Vasconcellos "); -+MODULE_LICENSE("GPL"); -+MODULE_ALIAS("platform:" RTC_NAME); -+MODULE_VERSION(RTC_VERSION); diff --git a/target/linux/generic/patches-2.6.39/700-swconfig.patch b/target/linux/generic/patches-2.6.39/700-swconfig.patch new file mode 100644 index 00000000000..6825037ce90 --- /dev/null +++ b/target/linux/generic/patches-2.6.39/700-swconfig.patch @@ -0,0 +1,25 @@ +--- a/drivers/net/phy/Kconfig ++++ b/drivers/net/phy/Kconfig +@@ -13,6 +13,12 @@ menuconfig PHYLIB + + if PHYLIB + ++config SWCONFIG ++ tristate "Switch configuration API" ++ ---help--- ++ Switch configuration API using netlink. This allows ++ you to configure the VLAN features of certain switches. ++ + comment "MII PHY device drivers" + + config MARVELL_PHY +--- a/drivers/net/phy/Makefile ++++ b/drivers/net/phy/Makefile +@@ -3,6 +3,7 @@ + libphy-objs := phy.o phy_device.o mdio_bus.o + + obj-$(CONFIG_PHYLIB) += libphy.o ++obj-$(CONFIG_SWCONFIG) += swconfig.o + obj-$(CONFIG_MARVELL_PHY) += marvell.o + obj-$(CONFIG_DAVICOM_PHY) += davicom.o + obj-$(CONFIG_CICADA_PHY) += cicada.o diff --git a/target/linux/generic/patches-2.6.39/701-phy_extension.patch b/target/linux/generic/patches-2.6.39/701-phy_extension.patch new file mode 100644 index 00000000000..b2d1665ceab --- /dev/null +++ b/target/linux/generic/patches-2.6.39/701-phy_extension.patch @@ -0,0 +1,72 @@ +--- a/drivers/net/phy/phy.c ++++ b/drivers/net/phy/phy.c +@@ -297,6 +297,50 @@ int phy_ethtool_gset(struct phy_device * + } + EXPORT_SYMBOL(phy_ethtool_gset); + ++int phy_ethtool_ioctl(struct phy_device *phydev, void *useraddr) ++{ ++ u32 cmd; ++ int tmp; ++ struct ethtool_cmd ecmd = { ETHTOOL_GSET }; ++ struct ethtool_value edata = { ETHTOOL_GLINK }; ++ ++ if (get_user(cmd, (u32 *) useraddr)) ++ return -EFAULT; ++ ++ switch (cmd) { ++ case ETHTOOL_GSET: ++ phy_ethtool_gset(phydev, &ecmd); ++ if (copy_to_user(useraddr, &ecmd, sizeof(ecmd))) ++ return -EFAULT; ++ return 0; ++ ++ case ETHTOOL_SSET: ++ if (copy_from_user(&ecmd, useraddr, sizeof(ecmd))) ++ return -EFAULT; ++ return phy_ethtool_sset(phydev, &ecmd); ++ ++ case ETHTOOL_NWAY_RST: ++ /* if autoneg is off, it's an error */ ++ tmp = phy_read(phydev, MII_BMCR); ++ if (tmp & BMCR_ANENABLE) { ++ tmp |= (BMCR_ANRESTART); ++ phy_write(phydev, MII_BMCR, tmp); ++ return 0; ++ } ++ return -EINVAL; ++ ++ case ETHTOOL_GLINK: ++ edata.data = (phy_read(phydev, ++ MII_BMSR) & BMSR_LSTATUS) ? 1 : 0; ++ if (copy_to_user(useraddr, &edata, sizeof(edata))) ++ return -EFAULT; ++ return 0; ++ } ++ ++ return -EOPNOTSUPP; ++} ++EXPORT_SYMBOL(phy_ethtool_ioctl); ++ + /** + * phy_mii_ioctl - generic PHY MII ioctl interface + * @phydev: the phy_device struct +@@ -472,7 +516,7 @@ static void phy_force_reduction(struct p + int idx; + + idx = phy_find_setting(phydev->speed, phydev->duplex); +- ++ + idx++; + + idx = phy_find_valid(idx, phydev->supported); +--- a/include/linux/phy.h ++++ b/include/linux/phy.h +@@ -508,6 +508,7 @@ void phy_start_machine(struct phy_device + void phy_stop_machine(struct phy_device *phydev); + int phy_ethtool_sset(struct phy_device *phydev, struct ethtool_cmd *cmd); + int phy_ethtool_gset(struct phy_device *phydev, struct ethtool_cmd *cmd); ++int phy_ethtool_ioctl(struct phy_device *phydev, void *useraddr); + int phy_mii_ioctl(struct phy_device *phydev, + struct ifreq *ifr, int cmd); + int phy_start_interrupts(struct phy_device *phydev); diff --git a/target/linux/generic/patches-2.6.39/702-phy_add_aneg_done_function.patch b/target/linux/generic/patches-2.6.39/702-phy_add_aneg_done_function.patch new file mode 100644 index 00000000000..776b768431e --- /dev/null +++ b/target/linux/generic/patches-2.6.39/702-phy_add_aneg_done_function.patch @@ -0,0 +1,45 @@ +--- a/include/linux/phy.h ++++ b/include/linux/phy.h +@@ -386,9 +386,18 @@ struct phy_driver { + */ + int (*config_aneg)(struct phy_device *phydev); + ++ /* Determine if autonegotiation is done */ ++ int (*aneg_done)(struct phy_device *phydev); ++ + /* Determines the negotiated speed and duplex */ + int (*read_status)(struct phy_device *phydev); + ++ /* ++ * Update the value in phydev->link to reflect the ++ * current link value ++ */ ++ int (*update_link)(struct phy_device *phydev); ++ + /* Clears any pending interrupts */ + int (*ack_interrupt)(struct phy_device *phydev); + +--- a/drivers/net/phy/phy_device.c ++++ b/drivers/net/phy/phy_device.c +@@ -719,6 +719,9 @@ int genphy_update_link(struct phy_device + { + int status; + ++ if (phydev->drv->update_link) ++ return phydev->drv->update_link(phydev); ++ + /* Do a fake read */ + status = phy_read(phydev, MII_BMSR); + +--- a/drivers/net/phy/phy.c ++++ b/drivers/net/phy/phy.c +@@ -106,6 +106,9 @@ static inline int phy_aneg_done(struct p + { + int retval; + ++ if (phydev->drv->aneg_done) ++ return phydev->drv->aneg_done(phydev); ++ + retval = phy_read(phydev, MII_BMSR); + + return (retval < 0) ? retval : (retval & BMSR_ANEGCOMPLETE); diff --git a/target/linux/generic/patches-2.6.39/720-phy_adm6996.patch b/target/linux/generic/patches-2.6.39/720-phy_adm6996.patch new file mode 100644 index 00000000000..5b2218edf42 --- /dev/null +++ b/target/linux/generic/patches-2.6.39/720-phy_adm6996.patch @@ -0,0 +1,24 @@ +--- a/drivers/net/phy/Kconfig ++++ b/drivers/net/phy/Kconfig +@@ -97,6 +97,11 @@ config MICREL_PHY + ---help--- + Supports the KSZ9021, VSC8201, KS8001 PHYs. + ++config ADM6996_PHY ++ tristate "Driver for ADM6996 switches" ++ ---help--- ++ Currently supports the ADM6996F switch ++ + config FIXED_PHY + bool "Driver for MDIO Bus/PHY emulation with fixed speed/link PHYs" + depends on PHYLIB=y +--- a/drivers/net/phy/Makefile ++++ b/drivers/net/phy/Makefile +@@ -14,6 +14,7 @@ obj-$(CONFIG_VITESSE_PHY) += vitesse.o + obj-$(CONFIG_BROADCOM_PHY) += broadcom.o + obj-$(CONFIG_BCM63XX_PHY) += bcm63xx.o + obj-$(CONFIG_ICPLUS_PHY) += icplus.o ++obj-$(CONFIG_ADM6996_PHY) += adm6996.o + obj-$(CONFIG_REALTEK_PHY) += realtek.o + obj-$(CONFIG_LSI_ET1011C_PHY) += et1011c.o + obj-$(CONFIG_FIXED_PHY) += fixed.o diff --git a/target/linux/generic/patches-2.6.39/721-phy_packets.patch b/target/linux/generic/patches-2.6.39/721-phy_packets.patch new file mode 100644 index 00000000000..b8a76b0ce08 --- /dev/null +++ b/target/linux/generic/patches-2.6.39/721-phy_packets.patch @@ -0,0 +1,63 @@ +--- a/drivers/net/phy/phy_device.c ++++ b/drivers/net/phy/phy_device.c +@@ -149,6 +149,18 @@ int phy_scan_fixups(struct phy_device *p + } + EXPORT_SYMBOL(phy_scan_fixups); + ++static int generic_receive_skb(struct sk_buff *skb) ++{ ++ skb->protocol = eth_type_trans(skb, skb->dev); ++ return netif_receive_skb(skb); ++} ++ ++static int generic_rx(struct sk_buff *skb) ++{ ++ skb->protocol = eth_type_trans(skb, skb->dev); ++ return netif_rx(skb); ++} ++ + static struct phy_device* phy_device_create(struct mii_bus *bus, + int addr, int phy_id) + { +@@ -180,6 +192,8 @@ static struct phy_device* phy_device_cre + dev_set_name(&dev->dev, PHY_ID_FMT, bus->id, addr); + + dev->state = PHY_DOWN; ++ dev->netif_receive_skb = &generic_receive_skb; ++ dev->netif_rx = &generic_rx; + + mutex_init(&dev->lock); + INIT_DELAYED_WORK(&dev->state_queue, phy_state_machine); +--- a/include/linux/phy.h ++++ b/include/linux/phy.h +@@ -332,6 +332,20 @@ struct phy_device { + void (*adjust_link)(struct net_device *dev); + + void (*adjust_state)(struct net_device *dev); ++ ++ /* ++ * By default these point to the original functions ++ * with the same name. adding them to the phy_device ++ * allows the phy driver to override them for packet ++ * mangling if the ethernet driver supports it ++ * This is required to support some really horrible ++ * switches such as the Marvell 88E6060 ++ */ ++ int (*netif_receive_skb)(struct sk_buff *skb); ++ int (*netif_rx)(struct sk_buff *skb); ++ ++ /* alignment offset for packets */ ++ int pkt_align; + }; + #define to_phy_device(d) container_of(d, struct phy_device, dev) + +--- a/include/linux/netdevice.h ++++ b/include/linux/netdevice.h +@@ -1182,6 +1182,7 @@ struct net_device { + void *ax25_ptr; /* AX.25 specific data */ + struct wireless_dev *ieee80211_ptr; /* IEEE 802.11 specific data, + assign before registering */ ++ void *phy_ptr; /* PHY device specific data */ + + /* + * Cache lines mostly used on receive path (including eth_type_trans()) diff --git a/target/linux/generic/patches-2.6.39/722-phy_mvswitch.patch b/target/linux/generic/patches-2.6.39/722-phy_mvswitch.patch new file mode 100644 index 00000000000..b5fef7668e5 --- /dev/null +++ b/target/linux/generic/patches-2.6.39/722-phy_mvswitch.patch @@ -0,0 +1,22 @@ +--- a/drivers/net/phy/Kconfig ++++ b/drivers/net/phy/Kconfig +@@ -102,6 +102,9 @@ config ADM6996_PHY + ---help--- + Currently supports the ADM6996F switch + ++config MVSWITCH_PHY ++ tristate "Driver for Marvell 88E6060 switches" ++ + config FIXED_PHY + bool "Driver for MDIO Bus/PHY emulation with fixed speed/link PHYs" + depends on PHYLIB=y +--- a/drivers/net/phy/Makefile ++++ b/drivers/net/phy/Makefile +@@ -15,6 +15,7 @@ obj-$(CONFIG_BROADCOM_PHY) += broadcom.o + obj-$(CONFIG_BCM63XX_PHY) += bcm63xx.o + obj-$(CONFIG_ICPLUS_PHY) += icplus.o + obj-$(CONFIG_ADM6996_PHY) += adm6996.o ++obj-$(CONFIG_MVSWITCH_PHY) += mvswitch.o + obj-$(CONFIG_REALTEK_PHY) += realtek.o + obj-$(CONFIG_LSI_ET1011C_PHY) += et1011c.o + obj-$(CONFIG_FIXED_PHY) += fixed.o diff --git a/target/linux/generic/patches-2.6.39/723-phy_ip175c.patch b/target/linux/generic/patches-2.6.39/723-phy_ip175c.patch new file mode 100644 index 00000000000..d99ca617997 --- /dev/null +++ b/target/linux/generic/patches-2.6.39/723-phy_ip175c.patch @@ -0,0 +1,23 @@ +--- a/drivers/net/phy/Kconfig ++++ b/drivers/net/phy/Kconfig +@@ -105,6 +105,10 @@ config ADM6996_PHY + config MVSWITCH_PHY + tristate "Driver for Marvell 88E6060 switches" + ++config IP17XX_PHY ++ tristate "Driver for IC+ IP17xx switches" ++ select SWCONFIG ++ + config FIXED_PHY + bool "Driver for MDIO Bus/PHY emulation with fixed speed/link PHYs" + depends on PHYLIB=y +--- a/drivers/net/phy/Makefile ++++ b/drivers/net/phy/Makefile +@@ -16,6 +16,7 @@ obj-$(CONFIG_BCM63XX_PHY) += bcm63xx.o + obj-$(CONFIG_ICPLUS_PHY) += icplus.o + obj-$(CONFIG_ADM6996_PHY) += adm6996.o + obj-$(CONFIG_MVSWITCH_PHY) += mvswitch.o ++obj-$(CONFIG_IP17XX_PHY) += ip17xx.o + obj-$(CONFIG_REALTEK_PHY) += realtek.o + obj-$(CONFIG_LSI_ET1011C_PHY) += et1011c.o + obj-$(CONFIG_FIXED_PHY) += fixed.o diff --git a/target/linux/generic/patches-2.6.39/724-phy_ar8216.patch b/target/linux/generic/patches-2.6.39/724-phy_ar8216.patch new file mode 100644 index 00000000000..a7afdfd820e --- /dev/null +++ b/target/linux/generic/patches-2.6.39/724-phy_ar8216.patch @@ -0,0 +1,23 @@ +--- a/drivers/net/phy/Kconfig ++++ b/drivers/net/phy/Kconfig +@@ -109,6 +109,10 @@ config IP17XX_PHY + tristate "Driver for IC+ IP17xx switches" + select SWCONFIG + ++config AR8216_PHY ++ tristate "Driver for Atheros AR8216 switches" ++ select SWCONFIG ++ + config FIXED_PHY + bool "Driver for MDIO Bus/PHY emulation with fixed speed/link PHYs" + depends on PHYLIB=y +--- a/drivers/net/phy/Makefile ++++ b/drivers/net/phy/Makefile +@@ -18,6 +18,7 @@ obj-$(CONFIG_ADM6996_PHY) += adm6996.o + obj-$(CONFIG_MVSWITCH_PHY) += mvswitch.o + obj-$(CONFIG_IP17XX_PHY) += ip17xx.o + obj-$(CONFIG_REALTEK_PHY) += realtek.o ++obj-$(CONFIG_AR8216_PHY) += ar8216.o + obj-$(CONFIG_LSI_ET1011C_PHY) += et1011c.o + obj-$(CONFIG_FIXED_PHY) += fixed.o + obj-$(CONFIG_MDIO_BITBANG) += mdio-bitbang.o diff --git a/target/linux/generic/patches-2.6.39/725-phy_rtl8306.patch b/target/linux/generic/patches-2.6.39/725-phy_rtl8306.patch new file mode 100644 index 00000000000..cd5e1a88b23 --- /dev/null +++ b/target/linux/generic/patches-2.6.39/725-phy_rtl8306.patch @@ -0,0 +1,23 @@ +--- a/drivers/net/phy/Kconfig ++++ b/drivers/net/phy/Kconfig +@@ -113,6 +113,10 @@ config AR8216_PHY + tristate "Driver for Atheros AR8216 switches" + select SWCONFIG + ++config RTL8306_PHY ++ tristate "Driver for Realtek RTL8306S switches" ++ select SWCONFIG ++ + config FIXED_PHY + bool "Driver for MDIO Bus/PHY emulation with fixed speed/link PHYs" + depends on PHYLIB=y +--- a/drivers/net/phy/Makefile ++++ b/drivers/net/phy/Makefile +@@ -19,6 +19,7 @@ obj-$(CONFIG_MVSWITCH_PHY) += mvswitch.o + obj-$(CONFIG_IP17XX_PHY) += ip17xx.o + obj-$(CONFIG_REALTEK_PHY) += realtek.o + obj-$(CONFIG_AR8216_PHY) += ar8216.o ++obj-$(CONFIG_RTL8306_PHY) += rtl8306.o + obj-$(CONFIG_LSI_ET1011C_PHY) += et1011c.o + obj-$(CONFIG_FIXED_PHY) += fixed.o + obj-$(CONFIG_MDIO_BITBANG) += mdio-bitbang.o diff --git a/target/linux/generic/patches-2.6.39/726-phy_rtl8366.patch b/target/linux/generic/patches-2.6.39/726-phy_rtl8366.patch new file mode 100644 index 00000000000..c4599969cbd --- /dev/null +++ b/target/linux/generic/patches-2.6.39/726-phy_rtl8366.patch @@ -0,0 +1,44 @@ +--- a/drivers/net/phy/Kconfig ++++ b/drivers/net/phy/Kconfig +@@ -155,4 +155,29 @@ config MDIO_OCTEON + + If in doubt, say Y. + ++config RTL8366_SMI ++ tristate "Driver for the RTL8366 SMI interface" ++ depends on GENERIC_GPIO ++ ---help--- ++ This module implements the SMI interface protocol which is used ++ by some RTL8366 ethernet switch devices via the generic GPIO API. ++ ++if RTL8366_SMI ++ ++config RTL8366S_PHY ++ tristate "Driver for the Realtek RTL8366S switch" ++ select SWCONFIG ++ ++config RTL8366RB_PHY ++ tristate "Driver for the Realtek RTL8366RB switch" ++ select SWCONFIG ++ ++config RTL8366S_PHY_DEBUG_FS ++ bool "RTL8366 switch driver DEBUG_FS support" ++ depends on RTL8366S_PHY || RTL8366RB_PHY ++ depends on DEBUG_FS ++ default n ++ ++endif # RTL8366_SMI ++ + endif # PHYLIB +--- a/drivers/net/phy/Makefile ++++ b/drivers/net/phy/Makefile +@@ -20,6 +20,9 @@ obj-$(CONFIG_IP17XX_PHY) += ip17xx.o + obj-$(CONFIG_REALTEK_PHY) += realtek.o + obj-$(CONFIG_AR8216_PHY) += ar8216.o + obj-$(CONFIG_RTL8306_PHY) += rtl8306.o ++obj-$(CONFIG_RTL8366_SMI) += rtl8366_smi.o ++obj-$(CONFIG_RTL8366S_PHY) += rtl8366s.o ++obj-$(CONFIG_RTL8366RB_PHY) += rtl8366rb.o + obj-$(CONFIG_LSI_ET1011C_PHY) += et1011c.o + obj-$(CONFIG_FIXED_PHY) += fixed.o + obj-$(CONFIG_MDIO_BITBANG) += mdio-bitbang.o diff --git a/target/linux/generic/patches-2.6.39/750-glamo-headers.patch b/target/linux/generic/patches-2.6.39/750-glamo-headers.patch deleted file mode 100644 index f3cf973651c..00000000000 --- a/target/linux/generic/patches-2.6.39/750-glamo-headers.patch +++ /dev/null @@ -1,21 +0,0 @@ ---- a/include/linux/fb.h -+++ b/include/linux/fb.h -@@ -125,6 +125,7 @@ - #define FB_ACCEL_TRIDENT_BLADE3D 52 /* Trident Blade3D */ - #define FB_ACCEL_TRIDENT_BLADEXP 53 /* Trident BladeXP */ - #define FB_ACCEL_CIRRUS_ALPINE 53 /* Cirrus Logic 543x/544x/5480 */ -+#define FB_ACCEL_GLAMO 50 /* SMedia Glamo */ - #define FB_ACCEL_NEOMAGIC_NM2070 90 /* NeoMagic NM2070 */ - #define FB_ACCEL_NEOMAGIC_NM2090 91 /* NeoMagic NM2090 */ - #define FB_ACCEL_NEOMAGIC_NM2093 92 /* NeoMagic NM2093 */ ---- a/include/linux/Kbuild -+++ b/include/linux/Kbuild -@@ -142,6 +142,8 @@ header-y += generic_serial.h - header-y += genetlink.h - header-y += gfs2_ondisk.h - header-y += gigaset_dev.h -+header-y += glamofb.h -+header-y += glamo-engine.h - header-y += hdlc.h - header-y += hdlcdrv.h - header-y += hdreg.h diff --git a/target/linux/generic/patches-2.6.39/750-hostap_txpower.patch b/target/linux/generic/patches-2.6.39/750-hostap_txpower.patch new file mode 100644 index 00000000000..e4c1803ff54 --- /dev/null +++ b/target/linux/generic/patches-2.6.39/750-hostap_txpower.patch @@ -0,0 +1,154 @@ +--- a/drivers/net/wireless/hostap/hostap_ap.c ++++ b/drivers/net/wireless/hostap/hostap_ap.c +@@ -2338,13 +2338,13 @@ int prism2_ap_get_sta_qual(local_info_t + addr[count].sa_family = ARPHRD_ETHER; + memcpy(addr[count].sa_data, sta->addr, ETH_ALEN); + if (sta->last_rx_silence == 0) +- qual[count].qual = sta->last_rx_signal < 27 ? +- 0 : (sta->last_rx_signal - 27) * 92 / 127; ++ qual[count].qual = (sta->last_rx_signal - 156) == 0 ? ++ 0 : (sta->last_rx_signal - 156) * 92 / 64; + else +- qual[count].qual = sta->last_rx_signal - +- sta->last_rx_silence - 35; +- qual[count].level = HFA384X_LEVEL_TO_dBm(sta->last_rx_signal); +- qual[count].noise = HFA384X_LEVEL_TO_dBm(sta->last_rx_silence); ++ qual[count].qual = (sta->last_rx_signal - ++ sta->last_rx_silence) * 92 / 64; ++ qual[count].level = sta->last_rx_signal; ++ qual[count].noise = sta->last_rx_silence; + qual[count].updated = sta->last_rx_updated; + + sta->last_rx_updated = IW_QUAL_DBM; +@@ -2410,13 +2410,13 @@ int prism2_ap_translate_scan(struct net_ + memset(&iwe, 0, sizeof(iwe)); + iwe.cmd = IWEVQUAL; + if (sta->last_rx_silence == 0) +- iwe.u.qual.qual = sta->last_rx_signal < 27 ? +- 0 : (sta->last_rx_signal - 27) * 92 / 127; ++ iwe.u.qual.qual = (sta->last_rx_signal -156) == 0 ? ++ 0 : (sta->last_rx_signal - 156) * 92 / 64; + else +- iwe.u.qual.qual = sta->last_rx_signal - +- sta->last_rx_silence - 35; +- iwe.u.qual.level = HFA384X_LEVEL_TO_dBm(sta->last_rx_signal); +- iwe.u.qual.noise = HFA384X_LEVEL_TO_dBm(sta->last_rx_silence); ++ iwe.u.qual.qual = (sta->last_rx_signal - ++ sta->last_rx_silence) * 92 / 64; ++ iwe.u.qual.level = sta->last_rx_signal; ++ iwe.u.qual.noise = sta->last_rx_silence; + iwe.u.qual.updated = sta->last_rx_updated; + iwe.len = IW_EV_QUAL_LEN; + current_ev = iwe_stream_add_event(info, current_ev, end_buf, +--- a/drivers/net/wireless/hostap/hostap_config.h ++++ b/drivers/net/wireless/hostap/hostap_config.h +@@ -45,4 +45,9 @@ + */ + /* #define PRISM2_NO_STATION_MODES */ + ++/* Enable TX power Setting functions ++ * (min att = -128 , max att = 127) ++ */ ++#define RAW_TXPOWER_SETTING ++ + #endif /* HOSTAP_CONFIG_H */ +--- a/drivers/net/wireless/hostap/hostap.h ++++ b/drivers/net/wireless/hostap/hostap.h +@@ -90,6 +90,7 @@ extern const struct iw_handler_def hosta + extern const struct ethtool_ops prism2_ethtool_ops; + + int hostap_ioctl(struct net_device *dev, struct ifreq *ifr, int cmd); ++int hostap_restore_power(struct net_device *dev); + + + #endif /* HOSTAP_H */ +--- a/drivers/net/wireless/hostap/hostap_hw.c ++++ b/drivers/net/wireless/hostap/hostap_hw.c +@@ -932,6 +932,7 @@ static int hfa384x_set_rid(struct net_de + prism2_hw_reset(dev); + } + ++ hostap_restore_power(dev); + return res; + } + +--- a/drivers/net/wireless/hostap/hostap_info.c ++++ b/drivers/net/wireless/hostap/hostap_info.c +@@ -433,6 +433,11 @@ static void handle_info_queue_linkstatus + } + + /* Get BSSID if we have a valid AP address */ ++ ++ if ( val == HFA384X_LINKSTATUS_CONNECTED || ++ val == HFA384X_LINKSTATUS_DISCONNECTED ) ++ hostap_restore_power(local->dev); ++ + if (connected) { + netif_carrier_on(local->dev); + netif_carrier_on(local->ddev); +--- a/drivers/net/wireless/hostap/hostap_ioctl.c ++++ b/drivers/net/wireless/hostap/hostap_ioctl.c +@@ -1477,23 +1477,20 @@ static int prism2_txpower_hfa386x_to_dBm + val = 255; + + tmp = val; +- tmp >>= 2; + +- return -12 - tmp; ++ return tmp; + } + + static u16 prism2_txpower_dBm_to_hfa386x(int val) + { + signed char tmp; + +- if (val > 20) +- return 128; +- else if (val < -43) ++ if (val > 127) + return 127; ++ else if (val < -128) ++ return 128; + + tmp = val; +- tmp = -12 - tmp; +- tmp <<= 2; + + return (unsigned char) tmp; + } +@@ -4056,3 +4053,35 @@ int hostap_ioctl(struct net_device *dev, + + return ret; + } ++ ++/* BUG FIX: Restore power setting value when lost due to F/W bug */ ++ ++int hostap_restore_power(struct net_device *dev) ++{ ++ struct hostap_interface *iface = netdev_priv(dev); ++ local_info_t *local = iface->local; ++ ++ u16 val; ++ int ret = 0; ++ ++ if (local->txpower_type == PRISM2_TXPOWER_OFF) { ++ val = 0xff; /* use all standby and sleep modes */ ++ ret = local->func->cmd(dev, HFA384X_CMDCODE_WRITEMIF, ++ HFA386X_CR_A_D_TEST_MODES2, ++ &val, NULL); ++ } ++ ++#ifdef RAW_TXPOWER_SETTING ++ if (local->txpower_type == PRISM2_TXPOWER_FIXED) { ++ val = HFA384X_TEST_CFG_BIT_ALC; ++ local->func->cmd(dev, HFA384X_CMDCODE_TEST | ++ (HFA384X_TEST_CFG_BITS << 8), 0, &val, NULL); ++ val = prism2_txpower_dBm_to_hfa386x(local->txpower); ++ ret = (local->func->cmd(dev, HFA384X_CMDCODE_WRITEMIF, ++ HFA386X_CR_MANUAL_TX_POWER, &val, NULL)); ++ } ++#endif /* RAW_TXPOWER_SETTING */ ++ return (ret ? -EOPNOTSUPP : 0); ++} ++ ++EXPORT_SYMBOL(hostap_restore_power); diff --git a/target/linux/generic/patches-2.6.39/801-usb_serial_endpoint_size.patch b/target/linux/generic/patches-2.6.39/801-usb_serial_endpoint_size.patch deleted file mode 100644 index 3dd419f2aec..00000000000 --- a/target/linux/generic/patches-2.6.39/801-usb_serial_endpoint_size.patch +++ /dev/null @@ -1,26 +0,0 @@ ---- a/drivers/usb/serial/usb-serial.c -+++ b/drivers/usb/serial/usb-serial.c -@@ -61,6 +61,7 @@ static struct usb_driver usb_serial_driv - drivers depend on it. - */ - -+static ushort maxSize = 0; - static int debug; - /* initially all NULL */ - static struct usb_serial *serial_table[SERIAL_TTY_MINORS]; -@@ -912,7 +913,8 @@ int usb_serial_probe(struct usb_interfac - goto probe_error; - } - buffer_size = max_t(int, serial->type->bulk_in_size, -- le16_to_cpu(endpoint->wMaxPacketSize)); -+ min_t(int, le16_to_cpu(endpoint->wMaxPacketSize), -+ maxSize)); - port->bulk_in_size = buffer_size; - port->bulk_in_endpointAddress = endpoint->bEndpointAddress; - port->bulk_in_buffer = kmalloc(buffer_size, GFP_KERNEL); -@@ -1391,3 +1393,5 @@ MODULE_LICENSE("GPL"); - - module_param(debug, bool, S_IRUGO | S_IWUSR); - MODULE_PARM_DESC(debug, "Debug enabled or not"); -+module_param(maxSize, ushort,0); -+MODULE_PARM_DESC(maxSize,"User specified USB endpoint size"); diff --git a/target/linux/generic/patches-2.6.39/810-pci_disable_common_quirks.patch b/target/linux/generic/patches-2.6.39/810-pci_disable_common_quirks.patch new file mode 100644 index 00000000000..c9478361667 --- /dev/null +++ b/target/linux/generic/patches-2.6.39/810-pci_disable_common_quirks.patch @@ -0,0 +1,43 @@ +--- a/drivers/pci/Kconfig ++++ b/drivers/pci/Kconfig +@@ -62,6 +62,12 @@ config XEN_PCIDEV_FE_DEBUG + + When in doubt, say N. + ++config PCI_DISABLE_COMMON_QUIRKS ++ bool "PCI disable common quirks" ++ depends on PCI ++ help ++ If you don't know what to do here, say N. ++ + config HT_IRQ + bool "Interrupts on hypertransport devices" + default y +--- a/drivers/pci/quirks.c ++++ b/drivers/pci/quirks.c +@@ -104,6 +104,7 @@ static void __devinit quirk_mmio_always_ + } + DECLARE_PCI_FIXUP_EARLY(PCI_ANY_ID, PCI_ANY_ID, quirk_mmio_always_on); + ++#ifndef CONFIG_PCI_DISABLE_COMMON_QUIRKS + /* The Mellanox Tavor device gives false positive parity errors + * Mark this device with a broken_parity_status, to allow + * PCI scanning code to "skip" this now blacklisted device. +@@ -1989,7 +1990,9 @@ static void __devinit fixup_rev1_53c810( + } + } + DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_NCR, PCI_DEVICE_ID_NCR_53C810, fixup_rev1_53c810); ++#endif /* !CONFIG_PCI_DISABLE_COMMON_QUIRKS */ + ++#ifndef CONFIG_PCI_DISABLE_COMMON_QUIRKS + /* Enable 1k I/O space granularity on the Intel P64H2 */ + static void __devinit quirk_p64h2_1k_io(struct pci_dev *dev) + { +@@ -2662,6 +2665,7 @@ DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_AT + quirk_msi_intx_disable_bug); + + #endif /* CONFIG_PCI_MSI */ ++#endif /* !CONFIG_PCI_DISABLE_COMMON_QUIRKS */ + + /* Allow manual resource allocation for PCI hotplug bridges + * via pci=hpmemsize=nnM and pci=hpiosize=nnM parameters. For diff --git a/target/linux/generic/patches-2.6.39/811-pci_disable_usb_common_quirks.patch b/target/linux/generic/patches-2.6.39/811-pci_disable_usb_common_quirks.patch new file mode 100644 index 00000000000..47abdf27ca9 --- /dev/null +++ b/target/linux/generic/patches-2.6.39/811-pci_disable_usb_common_quirks.patch @@ -0,0 +1,18 @@ + +--- a/drivers/usb/host/pci-quirks.c ++++ b/drivers/usb/host/pci-quirks.c +@@ -392,6 +392,8 @@ reset_needed: + } + EXPORT_SYMBOL_GPL(uhci_check_and_reset_hc); + ++#ifndef CONFIG_PCI_DISABLE_COMMON_QUIRKS ++ + static inline int io_type_enabled(struct pci_dev *pdev, unsigned int mask) + { + u16 cmd; +@@ -736,3 +738,5 @@ static void __devinit quirk_usb_early_ha + quirk_usb_handoff_xhci(pdev); + } + DECLARE_PCI_FIXUP_FINAL(PCI_ANY_ID, PCI_ANY_ID, quirk_usb_early_handoff); ++ ++#endif diff --git a/target/linux/generic/patches-2.6.39/820-usb_add_usb_find_device_by_name.patch b/target/linux/generic/patches-2.6.39/820-usb_add_usb_find_device_by_name.patch new file mode 100644 index 00000000000..3aeda678fce --- /dev/null +++ b/target/linux/generic/patches-2.6.39/820-usb_add_usb_find_device_by_name.patch @@ -0,0 +1,84 @@ +--- a/drivers/usb/core/usb.c ++++ b/drivers/usb/core/usb.c +@@ -651,6 +651,71 @@ int __usb_get_extra_descriptor(char *buf + } + EXPORT_SYMBOL_GPL(__usb_get_extra_descriptor); + ++static struct usb_device *match_device_name(struct usb_device *dev, ++ const char *name) ++{ ++ struct usb_device *ret_dev = NULL; ++ int child; ++ ++ dev_dbg(&dev->dev, "check for name %s ...\n", name); ++ ++ /* see if this device matches */ ++ if (strcmp(dev_name(&dev->dev), name) == 0 ) { ++ dev_dbg(&dev->dev, "matched this device!\n"); ++ ret_dev = usb_get_dev(dev); ++ goto exit; ++ } ++ ++ /* look through all of the children of this device */ ++ for (child = 0; child < dev->maxchild; ++child) { ++ if (dev->children[child]) { ++ usb_lock_device(dev->children[child]); ++ ret_dev = match_device_name(dev->children[child], name); ++ usb_unlock_device(dev->children[child]); ++ if (ret_dev) ++ goto exit; ++ } ++ } ++exit: ++ return ret_dev; ++} ++ ++/** ++ * usb_find_device_by_name - find a specific usb device in the system ++ * @name: the name of the device to find ++ * ++ * Returns a pointer to a struct usb_device if such a specified usb ++ * device is present in the system currently. The usage count of the ++ * device will be incremented if a device is found. Make sure to call ++ * usb_put_dev() when the caller is finished with the device. ++ * ++ * If a device with the specified bus id is not found, NULL is returned. ++ */ ++struct usb_device *usb_find_device_by_name(const char *name) ++{ ++ struct list_head *buslist; ++ struct usb_bus *bus; ++ struct usb_device *dev = NULL; ++ ++ mutex_lock(&usb_bus_list_lock); ++ for (buslist = usb_bus_list.next; ++ buslist != &usb_bus_list; ++ buslist = buslist->next) { ++ bus = container_of(buslist, struct usb_bus, bus_list); ++ if (!bus->root_hub) ++ continue; ++ usb_lock_device(bus->root_hub); ++ dev = match_device_name(bus->root_hub, name); ++ usb_unlock_device(bus->root_hub); ++ if (dev) ++ goto exit; ++ } ++exit: ++ mutex_unlock(&usb_bus_list_lock); ++ return dev; ++} ++EXPORT_SYMBOL_GPL(usb_find_device_by_name); ++ + /** + * usb_alloc_coherent - allocate dma-consistent buffer for URB_NO_xxx_DMA_MAP + * @dev: device the buffer will be used with +--- a/include/linux/usb.h ++++ b/include/linux/usb.h +@@ -513,6 +513,7 @@ extern int usb_lock_device_for_reset(str + extern int usb_reset_device(struct usb_device *dev); + extern void usb_queue_reset_device(struct usb_interface *dev); + ++extern struct usb_device *usb_find_device_by_name(const char *name); + + /* USB autosuspend and autoresume */ + #ifdef CONFIG_USB_SUSPEND diff --git a/target/linux/generic/patches-2.6.39/821-usb_serial_endpoint_size.patch b/target/linux/generic/patches-2.6.39/821-usb_serial_endpoint_size.patch new file mode 100644 index 00000000000..3dd419f2aec --- /dev/null +++ b/target/linux/generic/patches-2.6.39/821-usb_serial_endpoint_size.patch @@ -0,0 +1,26 @@ +--- a/drivers/usb/serial/usb-serial.c ++++ b/drivers/usb/serial/usb-serial.c +@@ -61,6 +61,7 @@ static struct usb_driver usb_serial_driv + drivers depend on it. + */ + ++static ushort maxSize = 0; + static int debug; + /* initially all NULL */ + static struct usb_serial *serial_table[SERIAL_TTY_MINORS]; +@@ -912,7 +913,8 @@ int usb_serial_probe(struct usb_interfac + goto probe_error; + } + buffer_size = max_t(int, serial->type->bulk_in_size, +- le16_to_cpu(endpoint->wMaxPacketSize)); ++ min_t(int, le16_to_cpu(endpoint->wMaxPacketSize), ++ maxSize)); + port->bulk_in_size = buffer_size; + port->bulk_in_endpointAddress = endpoint->bEndpointAddress; + port->bulk_in_buffer = kmalloc(buffer_size, GFP_KERNEL); +@@ -1391,3 +1393,5 @@ MODULE_LICENSE("GPL"); + + module_param(debug, bool, S_IRUGO | S_IWUSR); + MODULE_PARM_DESC(debug, "Debug enabled or not"); ++module_param(maxSize, ushort,0); ++MODULE_PARM_DESC(maxSize,"User specified USB endpoint size"); diff --git a/target/linux/generic/patches-2.6.39/830-ledtrig_morse.patch b/target/linux/generic/patches-2.6.39/830-ledtrig_morse.patch new file mode 100644 index 00000000000..2edc4f33cb3 --- /dev/null +++ b/target/linux/generic/patches-2.6.39/830-ledtrig_morse.patch @@ -0,0 +1,18 @@ +--- a/drivers/leds/Kconfig ++++ b/drivers/leds/Kconfig +@@ -449,4 +449,8 @@ config LEDS_TRIGGER_DEFAULT_ON + comment "iptables trigger is under Netfilter config (LED target)" + depends on LEDS_TRIGGERS + ++config LEDS_TRIGGER_MORSE ++ tristate "LED Morse Trigger" ++ depends on LEDS_TRIGGERS ++ + endif # NEW_LEDS +--- a/drivers/leds/Makefile ++++ b/drivers/leds/Makefile +@@ -53,3 +53,4 @@ obj-$(CONFIG_LEDS_TRIGGER_HEARTBEAT) += + obj-$(CONFIG_LEDS_TRIGGER_BACKLIGHT) += ledtrig-backlight.o + obj-$(CONFIG_LEDS_TRIGGER_GPIO) += ledtrig-gpio.o + obj-$(CONFIG_LEDS_TRIGGER_DEFAULT_ON) += ledtrig-default-on.o ++obj-$(CONFIG_LEDS_TRIGGER_MORSE) += ledtrig-morse.o diff --git a/target/linux/generic/patches-2.6.39/831-ledtrig_netdev.patch b/target/linux/generic/patches-2.6.39/831-ledtrig_netdev.patch new file mode 100644 index 00000000000..413174006c9 --- /dev/null +++ b/target/linux/generic/patches-2.6.39/831-ledtrig_netdev.patch @@ -0,0 +1,43 @@ +--- a/drivers/leds/Kconfig ++++ b/drivers/leds/Kconfig +@@ -453,4 +453,11 @@ config LEDS_TRIGGER_MORSE + tristate "LED Morse Trigger" + depends on LEDS_TRIGGERS + ++config LEDS_TRIGGER_NETDEV ++ tristate "LED Netdev Trigger" ++ depends on NET && LEDS_TRIGGERS ++ help ++ This allows LEDs to be controlled by network device activity. ++ If unsure, say Y. ++ + endif # NEW_LEDS +--- a/drivers/leds/Makefile ++++ b/drivers/leds/Makefile +@@ -54,3 +54,4 @@ obj-$(CONFIG_LEDS_TRIGGER_BACKLIGHT) += + obj-$(CONFIG_LEDS_TRIGGER_GPIO) += ledtrig-gpio.o + obj-$(CONFIG_LEDS_TRIGGER_DEFAULT_ON) += ledtrig-default-on.o + obj-$(CONFIG_LEDS_TRIGGER_MORSE) += ledtrig-morse.o ++obj-$(CONFIG_LEDS_TRIGGER_NETDEV) += ledtrig-netdev.o +--- a/drivers/leds/ledtrig-netdev.c ++++ b/drivers/leds/ledtrig-netdev.c +@@ -307,8 +307,9 @@ done: + static void netdev_trig_timer(unsigned long arg) + { + struct led_netdev_data *trigger_data = (struct led_netdev_data *)arg; +- const struct net_device_stats *dev_stats; ++ struct rtnl_link_stats64 *dev_stats; + unsigned new_activity; ++ struct rtnl_link_stats64 temp; + + write_lock(&trigger_data->lock); + +@@ -318,7 +319,7 @@ static void netdev_trig_timer(unsigned l + goto no_restart; + } + +- dev_stats = dev_get_stats(trigger_data->net_dev); ++ dev_stats = dev_get_stats(trigger_data->net_dev, &temp); + new_activity = + ((trigger_data->mode & MODE_TX) ? dev_stats->tx_packets : 0) + + ((trigger_data->mode & MODE_RX) ? dev_stats->rx_packets : 0); diff --git a/target/linux/generic/patches-2.6.39/832-ledtrig_usbdev.patch b/target/linux/generic/patches-2.6.39/832-ledtrig_usbdev.patch new file mode 100644 index 00000000000..54c94a6650c --- /dev/null +++ b/target/linux/generic/patches-2.6.39/832-ledtrig_usbdev.patch @@ -0,0 +1,21 @@ +--- a/drivers/leds/Kconfig ++++ b/drivers/leds/Kconfig +@@ -460,4 +460,11 @@ config LEDS_TRIGGER_NETDEV + This allows LEDs to be controlled by network device activity. + If unsure, say Y. + ++config LEDS_TRIGGER_USBDEV ++ tristate "LED USB device Trigger" ++ depends on USB && LEDS_TRIGGERS ++ help ++ This allows LEDs to be controlled by the presence/activity of ++ an USB device. If unsure, say N. ++ + endif # NEW_LEDS +--- a/drivers/leds/Makefile ++++ b/drivers/leds/Makefile +@@ -55,3 +55,4 @@ obj-$(CONFIG_LEDS_TRIGGER_GPIO) += ledt + obj-$(CONFIG_LEDS_TRIGGER_DEFAULT_ON) += ledtrig-default-on.o + obj-$(CONFIG_LEDS_TRIGGER_MORSE) += ledtrig-morse.o + obj-$(CONFIG_LEDS_TRIGGER_NETDEV) += ledtrig-netdev.o ++obj-$(CONFIG_LEDS_TRIGGER_USBDEV) += ledtrig-usbdev.o diff --git a/target/linux/generic/patches-2.6.39/833-gpio_buttons.patch b/target/linux/generic/patches-2.6.39/833-gpio_buttons.patch new file mode 100644 index 00000000000..cfe00286d95 --- /dev/null +++ b/target/linux/generic/patches-2.6.39/833-gpio_buttons.patch @@ -0,0 +1,31 @@ +--- a/drivers/input/misc/Kconfig ++++ b/drivers/input/misc/Kconfig +@@ -467,4 +467,20 @@ config INPUT_XEN_KBDDEV_FRONTEND + To compile this driver as a module, choose M here: the + module will be called xen-kbdfront. + ++config INPUT_GPIO_BUTTONS ++ tristate "Polled GPIO buttons interface" ++ depends on GENERIC_GPIO ++ select INPUT_POLLDEV ++ help ++ This driver implements support for buttons connected ++ to GPIO pins of various CPUs (and some other chips). ++ ++ Say Y here if your device has buttons connected ++ directly to such GPIO pins. Your board-specific ++ setup logic must also provide a platform device, ++ with configuration data saying which GPIOs are used. ++ ++ To compile this driver as a module, choose M here: the ++ module will be called gpio-buttons. ++ + endif +--- a/drivers/input/misc/Makefile ++++ b/drivers/input/misc/Makefile +@@ -44,4 +44,5 @@ obj-$(CONFIG_INPUT_WISTRON_BTNS) += wist + obj-$(CONFIG_INPUT_WM831X_ON) += wm831x-on.o + obj-$(CONFIG_INPUT_XEN_KBDDEV_FRONTEND) += xen-kbdfront.o + obj-$(CONFIG_INPUT_YEALINK) += yealink.o ++obj-$(CONFIG_INPUT_GPIO_BUTTONS) += gpio_buttons.o + diff --git a/target/linux/generic/patches-2.6.39/834-gpio_ioctl.patch b/target/linux/generic/patches-2.6.39/834-gpio_ioctl.patch new file mode 100644 index 00000000000..6609a1670af --- /dev/null +++ b/target/linux/generic/patches-2.6.39/834-gpio_ioctl.patch @@ -0,0 +1,11 @@ +--- a/drivers/char/gpio_dev.c ++++ b/drivers/char/gpio_dev.c +@@ -114,7 +114,7 @@ gpio_close(struct inode * inode, struct + } + + struct file_operations gpio_fops = { +- ioctl: gpio_ioctl, ++ unlocked_ioctl: gpio_ioctl, + open: gpio_open, + release: gpio_close + }; diff --git a/target/linux/generic/patches-2.6.39/835-gpiodev.patch b/target/linux/generic/patches-2.6.39/835-gpiodev.patch new file mode 100644 index 00000000000..f41d5a68508 --- /dev/null +++ b/target/linux/generic/patches-2.6.39/835-gpiodev.patch @@ -0,0 +1,27 @@ +--- a/drivers/char/Kconfig ++++ b/drivers/char/Kconfig +@@ -511,6 +511,14 @@ config NSC_GPIO + pc8736x_gpio drivers. If those drivers are built as + modules, this one will be too, named nsc_gpio + ++config GPIO_DEVICE ++ tristate "GPIO device support" ++ depends on GENERIC_GPIO ++ help ++ Say Y to enable Linux GPIO device support. This allows control of ++ GPIO pins using a character device ++ ++ + config RAW_DRIVER + tristate "RAW driver (/dev/raw/rawN)" + depends on BLOCK +--- a/drivers/char/Makefile ++++ b/drivers/char/Makefile +@@ -47,6 +47,7 @@ obj-$(CONFIG_NWFLASH) += nwflash.o + obj-$(CONFIG_SCx200_GPIO) += scx200_gpio.o + obj-$(CONFIG_PC8736x_GPIO) += pc8736x_gpio.o + obj-$(CONFIG_NSC_GPIO) += nsc_gpio.o ++obj-$(CONFIG_GPIO_DEVICE) += gpio_dev.o + obj-$(CONFIG_GPIO_TB0219) += tb0219.o + obj-$(CONFIG_TELCLOCK) += tlclk.o + diff --git a/target/linux/generic/patches-2.6.39/840-rtc7301.patch b/target/linux/generic/patches-2.6.39/840-rtc7301.patch new file mode 100644 index 00000000000..75f71d76017 --- /dev/null +++ b/target/linux/generic/patches-2.6.39/840-rtc7301.patch @@ -0,0 +1,250 @@ +--- a/drivers/rtc/Kconfig ++++ b/drivers/rtc/Kconfig +@@ -677,6 +677,15 @@ config RTC_DRV_NUC900 + If you say yes here you get support for the RTC subsystem of the + NUC910/NUC920 used in embedded systems. + ++config RTC_DRV_RTC7301 ++ tristate "Epson RTC-7301 SF/DG" ++ help ++ If you say Y here you will get support for the ++ Epson RTC-7301 SF/DG RTC chips. ++ ++ This driver can also be built as a module. If so, the module ++ will be called rtc-7301. ++ + comment "on-CPU RTC drivers" + + config RTC_DRV_DAVINCI +--- a/drivers/rtc/Makefile ++++ b/drivers/rtc/Makefile +@@ -81,6 +81,7 @@ obj-$(CONFIG_RTC_DRV_RP5C01) += rtc-rp5c + obj-$(CONFIG_RTC_DRV_RS5C313) += rtc-rs5c313.o + obj-$(CONFIG_RTC_DRV_RS5C348) += rtc-rs5c348.o + obj-$(CONFIG_RTC_DRV_RS5C372) += rtc-rs5c372.o ++obj-$(CONFIG_RTC_DRV_RTC7301) += rtc-rtc7301.o + obj-$(CONFIG_RTC_DRV_RX8025) += rtc-rx8025.o + obj-$(CONFIG_RTC_DRV_RX8581) += rtc-rx8581.o + obj-$(CONFIG_RTC_DRV_S35390A) += rtc-s35390a.o +--- /dev/null ++++ b/drivers/rtc/rtc-rtc7301.c +@@ -0,0 +1,219 @@ ++/* ++ * Driver for Epson RTC-7301SF/DG ++ * ++ * Copyright (C) 2009 Jose Vasconcellos ++ * ++ * This program is free software; you can redistribute it and/or modify ++ * it under the terms of the GNU General Public License version 2 as ++ * published by the Free Software Foundation. ++ */ ++ ++#include ++#include ++#include ++#include ++#include ++#include ++ ++#define RTC_NAME "rtc7301" ++#define RTC_VERSION "0.1" ++ ++/* Epson RTC-7301 register addresses */ ++#define RTC7301_SEC 0x00 ++#define RTC7301_SEC10 0x01 ++#define RTC7301_MIN 0x02 ++#define RTC7301_MIN10 0x03 ++#define RTC7301_HOUR 0x04 ++#define RTC7301_HOUR10 0x05 ++#define RTC7301_WEEKDAY 0x06 ++#define RTC7301_DAY 0x07 ++#define RTC7301_DAY10 0x08 ++#define RTC7301_MON 0x09 ++#define RTC7301_MON10 0x0A ++#define RTC7301_YEAR 0x0B ++#define RTC7301_YEAR10 0x0C ++#define RTC7301_YEAR100 0x0D ++#define RTC7301_YEAR1000 0x0E ++#define RTC7301_CTRLREG 0x0F ++ ++static uint8_t __iomem *rtc7301_base; ++ ++#define read_reg(offset) (readb(rtc7301_base + offset) & 0xf) ++#define write_reg(offset, data) writeb(data, rtc7301_base + (offset)) ++ ++#define rtc7301_isbusy() (read_reg(RTC7301_CTRLREG) & 1) ++ ++static void rtc7301_init_settings(void) ++{ ++ int i; ++ ++ write_reg(RTC7301_CTRLREG, 2); ++ write_reg(RTC7301_YEAR1000, 2); ++ udelay(122); ++ ++ /* bank 1 */ ++ write_reg(RTC7301_CTRLREG, 6); ++ for (i=0; i<15; i++) ++ write_reg(i, 0); ++ ++ /* bank 2 */ ++ write_reg(RTC7301_CTRLREG, 14); ++ for (i=0; i<15; i++) ++ write_reg(i, 0); ++ write_reg(RTC7301_CTRLREG, 0); ++} ++ ++static int rtc7301_get_datetime(struct device *dev, struct rtc_time *dt) ++{ ++ int cnt; ++ uint8_t buf[16]; ++ ++ cnt = 0; ++ while (rtc7301_isbusy()) { ++ udelay(244); ++ if (cnt++ > 100) { ++ dev_err(dev, "%s: timeout error %x\n", __func__, rtc7301_base[RTC7301_CTRLREG]); ++ return -EIO; ++ } ++ } ++ ++ for (cnt=0; cnt<16; cnt++) ++ buf[cnt] = read_reg(cnt); ++ ++ if (buf[RTC7301_SEC10] & 8) { ++ dev_err(dev, "%s: RTC not set\n", __func__); ++ return -EINVAL; ++ } ++ ++ memset(dt, 0, sizeof(*dt)); ++ ++ dt->tm_sec = buf[RTC7301_SEC] + buf[RTC7301_SEC10]*10; ++ dt->tm_min = buf[RTC7301_MIN] + buf[RTC7301_MIN10]*10; ++ dt->tm_hour = buf[RTC7301_HOUR] + buf[RTC7301_HOUR10]*10; ++ ++ dt->tm_mday = buf[RTC7301_DAY] + buf[RTC7301_DAY10]*10; ++ dt->tm_mon = buf[RTC7301_MON] + buf[RTC7301_MON10]*10 - 1; ++ dt->tm_year = buf[RTC7301_YEAR] + buf[RTC7301_YEAR10]*10 + ++ buf[RTC7301_YEAR100]*100 + ++ ((buf[RTC7301_YEAR1000] & 3)*1000) - 1900; ++ ++ /* the rtc device may contain illegal values on power up ++ * according to the data sheet. make sure they are valid. ++ */ ++ ++ return rtc_valid_tm(dt); ++} ++ ++static int rtc7301_set_datetime(struct device *dev, struct rtc_time *dt) ++{ ++ int data; ++ ++ data = dt->tm_year + 1900; ++ if (data >= 2100 || data < 1900) ++ return -EINVAL; ++ ++ write_reg(RTC7301_CTRLREG, 2); ++ udelay(122); ++ ++ data = bin2bcd(dt->tm_sec); ++ write_reg(RTC7301_SEC, data); ++ write_reg(RTC7301_SEC10, (data >> 4)); ++ ++ data = bin2bcd(dt->tm_min); ++ write_reg(RTC7301_MIN, data ); ++ write_reg(RTC7301_MIN10, (data >> 4)); ++ ++ data = bin2bcd(dt->tm_hour); ++ write_reg(RTC7301_HOUR, data); ++ write_reg(RTC7301_HOUR10, (data >> 4)); ++ ++ data = bin2bcd(dt->tm_mday); ++ write_reg(RTC7301_DAY, data); ++ write_reg(RTC7301_DAY10, (data>> 4)); ++ ++ data = bin2bcd(dt->tm_mon + 1); ++ write_reg(RTC7301_MON, data); ++ write_reg(RTC7301_MON10, (data >> 4)); ++ ++ data = bin2bcd(dt->tm_year % 100); ++ write_reg(RTC7301_YEAR, data); ++ write_reg(RTC7301_YEAR10, (data >> 4)); ++ data = bin2bcd((1900 + dt->tm_year) / 100); ++ write_reg(RTC7301_YEAR100, data); ++ ++ data = bin2bcd(dt->tm_wday); ++ write_reg(RTC7301_WEEKDAY, data); ++ ++ write_reg(RTC7301_CTRLREG, 0); ++ ++ return 0; ++} ++ ++static const struct rtc_class_ops rtc7301_rtc_ops = { ++ .read_time = rtc7301_get_datetime, ++ .set_time = rtc7301_set_datetime, ++}; ++ ++static int __devinit rtc7301_probe(struct platform_device *pdev) ++{ ++ struct rtc_device *rtc; ++ struct resource *res; ++ ++ res = platform_get_resource(pdev, IORESOURCE_MEM, 0); ++ if (!res) ++ return -ENOENT; ++ ++ rtc7301_base = ioremap_nocache(res->start, 0x1000 /*res->end - res->start + 1*/); ++ if (!rtc7301_base) ++ return -EINVAL; ++ ++ rtc = rtc_device_register(RTC_NAME, &pdev->dev, ++ &rtc7301_rtc_ops, THIS_MODULE); ++ if (IS_ERR(rtc)) { ++ iounmap(rtc7301_base); ++ return PTR_ERR(rtc); ++ } ++ ++ platform_set_drvdata(pdev, rtc); ++ ++ rtc7301_init_settings(); ++ return 0; ++} ++ ++static int __devexit rtc7301_remove(struct platform_device *pdev) ++{ ++ struct rtc_device *rtc = platform_get_drvdata(pdev); ++ ++ if (rtc) ++ rtc_device_unregister(rtc); ++ if (rtc7301_base) ++ iounmap(rtc7301_base); ++ return 0; ++} ++ ++static struct platform_driver rtc7301_driver = { ++ .driver = { ++ .name = RTC_NAME, ++ .owner = THIS_MODULE, ++ }, ++ .probe = rtc7301_probe, ++ .remove = __devexit_p(rtc7301_remove), ++}; ++ ++static __init int rtc7301_init(void) ++{ ++ return platform_driver_register(&rtc7301_driver); ++} ++module_init(rtc7301_init); ++ ++static __exit void rtc7301_exit(void) ++{ ++ platform_driver_unregister(&rtc7301_driver); ++} ++module_exit(rtc7301_exit); ++ ++MODULE_DESCRIPTION("Epson 7301 RTC driver"); ++MODULE_AUTHOR("Jose Vasconcellos "); ++MODULE_LICENSE("GPL"); ++MODULE_ALIAS("platform:" RTC_NAME); ++MODULE_VERSION(RTC_VERSION); diff --git a/target/linux/generic/patches-2.6.39/840-unable_to_open_console.patch b/target/linux/generic/patches-2.6.39/840-unable_to_open_console.patch deleted file mode 100644 index 27b90029366..00000000000 --- a/target/linux/generic/patches-2.6.39/840-unable_to_open_console.patch +++ /dev/null @@ -1,11 +0,0 @@ ---- a/init/main.c -+++ b/init/main.c -@@ -802,7 +802,7 @@ static int __init kernel_init(void * unu - - /* Open the /dev/console on the rootfs, this should never fail */ - if (sys_open((const char __user *) "/dev/console", O_RDWR, 0) < 0) -- printk(KERN_WARNING "Warning: unable to open an initial console.\n"); -+ printk(KERN_WARNING "Please be patient, while OpenWrt loads ...\n"); - - (void) sys_dup(0); - (void) sys_dup(0); diff --git a/target/linux/generic/patches-2.6.39/850-glamo_headers.patch b/target/linux/generic/patches-2.6.39/850-glamo_headers.patch new file mode 100644 index 00000000000..f3cf973651c --- /dev/null +++ b/target/linux/generic/patches-2.6.39/850-glamo_headers.patch @@ -0,0 +1,21 @@ +--- a/include/linux/fb.h ++++ b/include/linux/fb.h +@@ -125,6 +125,7 @@ + #define FB_ACCEL_TRIDENT_BLADE3D 52 /* Trident Blade3D */ + #define FB_ACCEL_TRIDENT_BLADEXP 53 /* Trident BladeXP */ + #define FB_ACCEL_CIRRUS_ALPINE 53 /* Cirrus Logic 543x/544x/5480 */ ++#define FB_ACCEL_GLAMO 50 /* SMedia Glamo */ + #define FB_ACCEL_NEOMAGIC_NM2070 90 /* NeoMagic NM2070 */ + #define FB_ACCEL_NEOMAGIC_NM2090 91 /* NeoMagic NM2090 */ + #define FB_ACCEL_NEOMAGIC_NM2093 92 /* NeoMagic NM2093 */ +--- a/include/linux/Kbuild ++++ b/include/linux/Kbuild +@@ -142,6 +142,8 @@ header-y += generic_serial.h + header-y += genetlink.h + header-y += gfs2_ondisk.h + header-y += gigaset_dev.h ++header-y += glamofb.h ++header-y += glamo-engine.h + header-y += hdlc.h + header-y += hdlcdrv.h + header-y += hdreg.h diff --git a/target/linux/generic/patches-2.6.39/860-01_hotpluggable_spi_gpio.patch b/target/linux/generic/patches-2.6.39/860-01_hotpluggable_spi_gpio.patch new file mode 100644 index 00000000000..f8e6374fa76 --- /dev/null +++ b/target/linux/generic/patches-2.6.39/860-01_hotpluggable_spi_gpio.patch @@ -0,0 +1,60 @@ +Fix spi-gpio for hotplug. + +--mb + + + +--- a/drivers/spi/spi_gpio.c ++++ b/drivers/spi/spi_gpio.c +@@ -255,7 +255,7 @@ static void spi_gpio_cleanup(struct spi_ + spi_bitbang_cleanup(spi); + } + +-static int __init spi_gpio_alloc(unsigned pin, const char *label, bool is_in) ++static int __devinit spi_gpio_alloc(unsigned pin, const char *label, bool is_in) + { + int value; + +@@ -269,7 +269,7 @@ static int __init spi_gpio_alloc(unsigne + return value; + } + +-static int __init ++static int __devinit + spi_gpio_request(struct spi_gpio_platform_data *pdata, const char *label, + u16 *res_flags) + { +@@ -311,7 +311,7 @@ done: + return value; + } + +-static int __init spi_gpio_probe(struct platform_device *pdev) ++static int __devinit spi_gpio_probe(struct platform_device *pdev) + { + int status; + struct spi_master *master; +@@ -379,7 +379,7 @@ gpio_free: + return status; + } + +-static int __exit spi_gpio_remove(struct platform_device *pdev) ++static int __devexit spi_gpio_remove(struct platform_device *pdev) + { + struct spi_gpio *spi_gpio; + struct spi_gpio_platform_data *pdata; +@@ -408,12 +408,13 @@ MODULE_ALIAS("platform:" DRIVER_NAME); + static struct platform_driver spi_gpio_driver = { + .driver.name = DRIVER_NAME, + .driver.owner = THIS_MODULE, +- .remove = __exit_p(spi_gpio_remove), ++ .probe = spi_gpio_probe, ++ .remove = __devexit_p(spi_gpio_remove), + }; + + static int __init spi_gpio_init(void) + { +- return platform_driver_probe(&spi_gpio_driver, spi_gpio_probe); ++ return platform_driver_register(&spi_gpio_driver); + } + module_init(spi_gpio_init); + diff --git a/target/linux/generic/patches-2.6.39/861-04_spi_gpio_implement_spi_delay.patch b/target/linux/generic/patches-2.6.39/861-04_spi_gpio_implement_spi_delay.patch new file mode 100644 index 00000000000..4b145c27342 --- /dev/null +++ b/target/linux/generic/patches-2.6.39/861-04_spi_gpio_implement_spi_delay.patch @@ -0,0 +1,58 @@ +Implement the SPI-GPIO delay function for busses that need speed limitation. + +--mb + + + +--- a/drivers/spi/spi_gpio.c ++++ b/drivers/spi/spi_gpio.c +@@ -21,6 +21,7 @@ + #include + #include + #include ++#include + + #include + #include +@@ -69,6 +70,7 @@ struct spi_gpio { + * #define SPI_MOSI_GPIO 120 + * #define SPI_SCK_GPIO 121 + * #define SPI_N_CHIPSEL 4 ++ * #undef NEED_SPIDELAY + * #include "spi_gpio.c" + */ + +@@ -76,6 +78,7 @@ struct spi_gpio { + #define DRIVER_NAME "spi_gpio" + + #define GENERIC_BITBANG /* vs tight inlines */ ++#define NEED_SPIDELAY 1 + + /* all functions referencing these symbols must define pdata */ + #define SPI_MISO_GPIO ((pdata)->miso) +@@ -120,12 +123,20 @@ static inline int getmiso(const struct s + #undef pdata + + /* +- * NOTE: this clocks "as fast as we can". It "should" be a function of the +- * requested device clock. Software overhead means we usually have trouble +- * reaching even one Mbit/sec (except when we can inline bitops), so for now +- * we'll just assume we never need additional per-bit slowdowns. ++ * NOTE: to clock "as fast as we can", set spi_device.max_speed_hz ++ * and spi_transfer.speed_hz to 0. ++ * Otherwise this is a function of the requested device clock. ++ * Software overhead means we usually have trouble ++ * reaching even one Mbit/sec (except when we can inline bitops). So on small ++ * embedded devices with fast SPI slaves you usually don't need a delay. + */ +-#define spidelay(nsecs) do {} while (0) ++static inline void spidelay(unsigned nsecs) ++{ ++#ifdef NEED_SPIDELAY ++ if (unlikely(nsecs)) ++ ndelay(nsecs); ++#endif /* NEED_SPIDELAY */ ++} + + #include "spi_bitbang_txrx.h" + diff --git a/target/linux/generic/patches-2.6.39/862-gpio_spi_driver.patch b/target/linux/generic/patches-2.6.39/862-gpio_spi_driver.patch new file mode 100644 index 00000000000..3ea9f9091cc --- /dev/null +++ b/target/linux/generic/patches-2.6.39/862-gpio_spi_driver.patch @@ -0,0 +1,373 @@ +THIS CODE IS DEPRECATED. + +Please use the new mainline SPI-GPIO driver, as of 2.6.29. + +--mb + + + +--- + drivers/spi/Kconfig | 9 + + drivers/spi/Makefile | 1 + drivers/spi/spi_gpio_old.c | 251 +++++++++++++++++++++++++++++++++++++++ + include/linux/spi/spi_gpio_old.h | 73 +++++++++++ + 4 files changed, 334 insertions(+) + +--- /dev/null ++++ b/include/linux/spi/spi_gpio_old.h +@@ -0,0 +1,73 @@ ++/* ++ * spi_gpio interface to platform code ++ * ++ * Copyright (c) 2008 Piotr Skamruk ++ * Copyright (c) 2008 Michael Buesch ++ * ++ * This program is free software; you can redistribute it and/or modify ++ * it under the terms of the GNU General Public License version 2 as ++ * published by the Free Software Foundation. ++ */ ++#ifndef _LINUX_SPI_SPI_GPIO ++#define _LINUX_SPI_SPI_GPIO ++ ++#include ++#include ++ ++ ++/** ++ * struct spi_gpio_platform_data - Data definitions for a SPI-GPIO device. ++ * ++ * This structure holds information about a GPIO-based SPI device. ++ * ++ * @pin_clk: The GPIO pin number of the CLOCK pin. ++ * ++ * @pin_miso: The GPIO pin number of the MISO pin. ++ * ++ * @pin_mosi: The GPIO pin number of the MOSI pin. ++ * ++ * @pin_cs: The GPIO pin number of the CHIPSELECT pin. ++ * ++ * @cs_activelow: If true, the chip is selected when the CS line is low. ++ * ++ * @no_spi_delay: If true, no delay is done in the lowlevel bitbanging. ++ * Note that doing no delay is not standards compliant, ++ * but it might be needed to speed up transfers on some ++ * slow embedded machines. ++ * ++ * @boardinfo_setup: This callback is called after the ++ * SPI master device was registered, but before the ++ * device is registered. ++ * @boardinfo_setup_data: Data argument passed to boardinfo_setup(). ++ */ ++struct spi_gpio_platform_data { ++ unsigned int pin_clk; ++ unsigned int pin_miso; ++ unsigned int pin_mosi; ++ unsigned int pin_cs; ++ bool cs_activelow; ++ bool no_spi_delay; ++ int (*boardinfo_setup)(struct spi_board_info *bi, ++ struct spi_master *master, ++ void *data); ++ void *boardinfo_setup_data; ++}; ++ ++/** ++ * SPI_GPIO_PLATDEV_NAME - The platform device name string. ++ * ++ * The name string that has to be used for platform_device_alloc ++ * when allocating a spi-gpio device. ++ */ ++#define SPI_GPIO_PLATDEV_NAME "spi-gpio" ++ ++/** ++ * spi_gpio_next_id - Get another platform device ID number. ++ * ++ * This returns the next platform device ID number that has to be used ++ * for platform_device_alloc. The ID is opaque and should not be used for ++ * anything else. ++ */ ++int spi_gpio_next_id(void); ++ ++#endif /* _LINUX_SPI_SPI_GPIO */ +--- /dev/null ++++ b/drivers/spi/spi_gpio_old.c +@@ -0,0 +1,251 @@ ++/* ++ * Bitbanging SPI bus driver using GPIO API ++ * ++ * Copyright (c) 2008 Piotr Skamruk ++ * Copyright (c) 2008 Michael Buesch ++ * ++ * based on spi_s3c2410_gpio.c ++ * Copyright (c) 2006 Ben Dooks ++ * Copyright (c) 2006 Simtec Electronics ++ * and on i2c-gpio.c ++ * Copyright (C) 2007 Atmel Corporation ++ * ++ * This program is free software; you can redistribute it and/or modify ++ * it under the terms of the GNU General Public License version 2 as ++ * published by the Free Software Foundation. ++ */ ++ ++#include ++#include ++#include ++#include ++#include ++#include ++#include ++#include ++#include ++#include ++#include ++#include ++ ++ ++struct spi_gpio { ++ struct spi_bitbang bitbang; ++ struct spi_gpio_platform_data *info; ++ struct platform_device *pdev; ++ struct spi_board_info bi; ++}; ++ ++ ++static inline struct spi_gpio *spidev_to_sg(struct spi_device *dev) ++{ ++ return dev->controller_data; ++} ++ ++static inline void setsck(struct spi_device *dev, int val) ++{ ++ struct spi_gpio *sp = spidev_to_sg(dev); ++ gpio_set_value(sp->info->pin_clk, val ? 1 : 0); ++} ++ ++static inline void setmosi(struct spi_device *dev, int val) ++{ ++ struct spi_gpio *sp = spidev_to_sg(dev); ++ gpio_set_value(sp->info->pin_mosi, val ? 1 : 0); ++} ++ ++static inline u32 getmiso(struct spi_device *dev) ++{ ++ struct spi_gpio *sp = spidev_to_sg(dev); ++ return gpio_get_value(sp->info->pin_miso) ? 1 : 0; ++} ++ ++static inline void do_spidelay(struct spi_device *dev, unsigned nsecs) ++{ ++ struct spi_gpio *sp = spidev_to_sg(dev); ++ ++ if (!sp->info->no_spi_delay) ++ ndelay(nsecs); ++} ++ ++#define spidelay(nsecs) do { \ ++ /* Steal the spi_device pointer from our caller. \ ++ * The bitbang-API should probably get fixed here... */ \ ++ do_spidelay(spi, nsecs); \ ++ } while (0) ++ ++#define EXPAND_BITBANG_TXRX ++#include "spi_bitbang_txrx.h" ++ ++static u32 spi_gpio_txrx_mode0(struct spi_device *spi, ++ unsigned nsecs, u32 word, u8 bits) ++{ ++ return bitbang_txrx_be_cpha0(spi, nsecs, 0, 0, word, bits); ++} ++ ++static u32 spi_gpio_txrx_mode1(struct spi_device *spi, ++ unsigned nsecs, u32 word, u8 bits) ++{ ++ return bitbang_txrx_be_cpha1(spi, nsecs, 0, 0, word, bits); ++} ++ ++static u32 spi_gpio_txrx_mode2(struct spi_device *spi, ++ unsigned nsecs, u32 word, u8 bits) ++{ ++ return bitbang_txrx_be_cpha0(spi, nsecs, 1, 0, word, bits); ++} ++ ++static u32 spi_gpio_txrx_mode3(struct spi_device *spi, ++ unsigned nsecs, u32 word, u8 bits) ++{ ++ return bitbang_txrx_be_cpha1(spi, nsecs, 1, 0, word, bits); ++} ++ ++static void spi_gpio_chipselect(struct spi_device *dev, int on) ++{ ++ struct spi_gpio *sp = spidev_to_sg(dev); ++ ++ if (sp->info->cs_activelow) ++ on = !on; ++ gpio_set_value(sp->info->pin_cs, on ? 1 : 0); ++} ++ ++static int spi_gpio_probe(struct platform_device *pdev) ++{ ++ struct spi_master *master; ++ struct spi_gpio_platform_data *pdata; ++ struct spi_gpio *sp; ++ struct spi_device *spidev; ++ int err; ++ ++ pdata = pdev->dev.platform_data; ++ if (!pdata) ++ return -ENXIO; ++ ++ err = -ENOMEM; ++ master = spi_alloc_master(&pdev->dev, sizeof(struct spi_gpio)); ++ if (!master) ++ goto err_alloc_master; ++ ++ sp = spi_master_get_devdata(master); ++ platform_set_drvdata(pdev, sp); ++ sp->info = pdata; ++ ++ err = gpio_request(pdata->pin_clk, "spi_clock"); ++ if (err) ++ goto err_request_clk; ++ err = gpio_request(pdata->pin_mosi, "spi_mosi"); ++ if (err) ++ goto err_request_mosi; ++ err = gpio_request(pdata->pin_miso, "spi_miso"); ++ if (err) ++ goto err_request_miso; ++ err = gpio_request(pdata->pin_cs, "spi_cs"); ++ if (err) ++ goto err_request_cs; ++ ++ sp->bitbang.master = spi_master_get(master); ++ sp->bitbang.master->bus_num = -1; ++ sp->bitbang.master->num_chipselect = 1; ++ sp->bitbang.chipselect = spi_gpio_chipselect; ++ sp->bitbang.txrx_word[SPI_MODE_0] = spi_gpio_txrx_mode0; ++ sp->bitbang.txrx_word[SPI_MODE_1] = spi_gpio_txrx_mode1; ++ sp->bitbang.txrx_word[SPI_MODE_2] = spi_gpio_txrx_mode2; ++ sp->bitbang.txrx_word[SPI_MODE_3] = spi_gpio_txrx_mode3; ++ ++ gpio_direction_output(pdata->pin_clk, 0); ++ gpio_direction_output(pdata->pin_mosi, 0); ++ gpio_direction_output(pdata->pin_cs, ++ pdata->cs_activelow ? 1 : 0); ++ gpio_direction_input(pdata->pin_miso); ++ ++ err = spi_bitbang_start(&sp->bitbang); ++ if (err) ++ goto err_no_bitbang; ++ err = pdata->boardinfo_setup(&sp->bi, master, ++ pdata->boardinfo_setup_data); ++ if (err) ++ goto err_bi_setup; ++ sp->bi.controller_data = sp; ++ spidev = spi_new_device(master, &sp->bi); ++ if (!spidev) ++ goto err_new_dev; ++ ++ return 0; ++ ++err_new_dev: ++err_bi_setup: ++ spi_bitbang_stop(&sp->bitbang); ++err_no_bitbang: ++ spi_master_put(sp->bitbang.master); ++ gpio_free(pdata->pin_cs); ++err_request_cs: ++ gpio_free(pdata->pin_miso); ++err_request_miso: ++ gpio_free(pdata->pin_mosi); ++err_request_mosi: ++ gpio_free(pdata->pin_clk); ++err_request_clk: ++ kfree(master); ++ ++err_alloc_master: ++ return err; ++} ++ ++static int __devexit spi_gpio_remove(struct platform_device *pdev) ++{ ++ struct spi_gpio *sp; ++ struct spi_gpio_platform_data *pdata; ++ ++ pdata = pdev->dev.platform_data; ++ sp = platform_get_drvdata(pdev); ++ ++ gpio_free(pdata->pin_clk); ++ gpio_free(pdata->pin_mosi); ++ gpio_free(pdata->pin_miso); ++ gpio_free(pdata->pin_cs); ++ spi_bitbang_stop(&sp->bitbang); ++ spi_master_put(sp->bitbang.master); ++ ++ return 0; ++} ++ ++static struct platform_driver spi_gpio_driver = { ++ .driver = { ++ .name = SPI_GPIO_PLATDEV_NAME, ++ .owner = THIS_MODULE, ++ }, ++ .probe = spi_gpio_probe, ++ .remove = __devexit_p(spi_gpio_remove), ++}; ++ ++int spi_gpio_next_id(void) ++{ ++ static atomic_t counter = ATOMIC_INIT(-1); ++ ++ return atomic_inc_return(&counter); ++} ++EXPORT_SYMBOL(spi_gpio_next_id); ++ ++static int __init spi_gpio_init(void) ++{ ++ int err; ++ ++ err = platform_driver_register(&spi_gpio_driver); ++ if (err) ++ printk(KERN_ERR "spi-gpio: register failed: %d\n", err); ++ ++ return err; ++} ++module_init(spi_gpio_init); ++ ++static void __exit spi_gpio_exit(void) ++{ ++ platform_driver_unregister(&spi_gpio_driver); ++} ++module_exit(spi_gpio_exit); ++ ++MODULE_AUTHOR("Piot Skamruk "); ++MODULE_AUTHOR("Michael Buesch"); ++MODULE_DESCRIPTION("Platform independent GPIO bitbanging SPI driver"); ++MODULE_LICENSE("GPL v2"); +--- a/drivers/spi/Kconfig ++++ b/drivers/spi/Kconfig +@@ -175,6 +175,15 @@ config SPI_IMX_VER_0_7 + config SPI_IMX_VER_2_3 + def_bool y if SOC_IMX51 || SOC_IMX53 + ++config SPI_GPIO_OLD ++ tristate "Old GPIO API based bitbanging SPI controller (DEPRECATED)" ++ depends on SPI_MASTER && GENERIC_GPIO ++ select SPI_BITBANG ++ help ++ This code is deprecated. Please use the new mainline SPI-GPIO driver. ++ ++ If unsure, say N. ++ + config SPI_IMX + tristate "Freescale i.MX SPI controllers" + depends on ARCH_MXC +--- a/drivers/spi/Makefile ++++ b/drivers/spi/Makefile +@@ -24,6 +24,7 @@ dw_spi_midpci-objs := dw_spi_pci.o dw_ + obj-$(CONFIG_SPI_DW_MMIO) += dw_spi_mmio.o + obj-$(CONFIG_SPI_EP93XX) += ep93xx_spi.o + obj-$(CONFIG_SPI_GPIO) += spi_gpio.o ++obj-$(CONFIG_SPI_GPIO_OLD) += spi_gpio_old.o + obj-$(CONFIG_SPI_IMX) += spi_imx.o + obj-$(CONFIG_SPI_LM70_LLP) += spi_lm70llp.o + obj-$(CONFIG_SPI_PXA2XX) += pxa2xx_spi.o diff --git a/target/linux/generic/patches-2.6.39/863-gpiommc.patch b/target/linux/generic/patches-2.6.39/863-gpiommc.patch new file mode 100644 index 00000000000..c10eaeed257 --- /dev/null +++ b/target/linux/generic/patches-2.6.39/863-gpiommc.patch @@ -0,0 +1,843 @@ +--- /dev/null ++++ b/drivers/mmc/host/gpiommc.c +@@ -0,0 +1,608 @@ ++/* ++ * Driver an MMC/SD card on a bitbanging GPIO SPI bus. ++ * This module hooks up the mmc_spi and spi_gpio modules and also ++ * provides a configfs interface. ++ * ++ * Copyright 2008 Michael Buesch ++ * ++ * Licensed under the GNU/GPL. See COPYING for details. ++ */ ++ ++#include ++#include ++#include ++#include ++#include ++#include ++#include ++#include ++ ++ ++#define PFX "gpio-mmc: " ++ ++ ++struct gpiommc_device { ++ struct platform_device *pdev; ++ struct platform_device *spi_pdev; ++ struct spi_board_info boardinfo; ++}; ++ ++ ++MODULE_DESCRIPTION("GPIO based MMC driver"); ++MODULE_AUTHOR("Michael Buesch"); ++MODULE_LICENSE("GPL"); ++ ++ ++static int gpiommc_boardinfo_setup(struct spi_board_info *bi, ++ struct spi_master *master, ++ void *data) ++{ ++ struct gpiommc_device *d = data; ++ struct gpiommc_platform_data *pdata = d->pdev->dev.platform_data; ++ ++ /* Bind the SPI master to the MMC-SPI host driver. */ ++ strlcpy(bi->modalias, "mmc_spi", sizeof(bi->modalias)); ++ ++ bi->max_speed_hz = pdata->max_bus_speed; ++ bi->bus_num = master->bus_num; ++ bi->mode = pdata->mode; ++ ++ return 0; ++} ++ ++static int gpiommc_probe(struct platform_device *pdev) ++{ ++ struct gpiommc_platform_data *mmc_pdata = pdev->dev.platform_data; ++ struct spi_gpio_platform_data spi_pdata; ++ struct gpiommc_device *d; ++ int err; ++ ++ err = -ENXIO; ++ if (!mmc_pdata) ++ goto error; ++ ++#ifdef CONFIG_MMC_SPI_MODULE ++ err = request_module("mmc_spi"); ++ if (err) { ++ printk(KERN_WARNING PFX ++ "Failed to request mmc_spi module.\n"); ++ } ++#endif /* CONFIG_MMC_SPI_MODULE */ ++ ++ /* Allocate the GPIO-MMC device */ ++ err = -ENOMEM; ++ d = kzalloc(sizeof(*d), GFP_KERNEL); ++ if (!d) ++ goto error; ++ d->pdev = pdev; ++ ++ /* Create the SPI-GPIO device */ ++ d->spi_pdev = platform_device_alloc(SPI_GPIO_PLATDEV_NAME, ++ spi_gpio_next_id()); ++ if (!d->spi_pdev) ++ goto err_free_d; ++ ++ memset(&spi_pdata, 0, sizeof(spi_pdata)); ++ spi_pdata.pin_clk = mmc_pdata->pins.gpio_clk; ++ spi_pdata.pin_miso = mmc_pdata->pins.gpio_do; ++ spi_pdata.pin_mosi = mmc_pdata->pins.gpio_di; ++ spi_pdata.pin_cs = mmc_pdata->pins.gpio_cs; ++ spi_pdata.cs_activelow = mmc_pdata->pins.cs_activelow; ++ spi_pdata.no_spi_delay = mmc_pdata->no_spi_delay; ++ spi_pdata.boardinfo_setup = gpiommc_boardinfo_setup; ++ spi_pdata.boardinfo_setup_data = d; ++ ++ err = platform_device_add_data(d->spi_pdev, &spi_pdata, ++ sizeof(spi_pdata)); ++ if (err) ++ goto err_free_pdev; ++ err = platform_device_add(d->spi_pdev); ++ if (err) ++ goto err_free_pdata; ++ platform_set_drvdata(pdev, d); ++ ++ printk(KERN_INFO PFX "MMC-Card \"%s\" " ++ "attached to GPIO pins di=%u, do=%u, clk=%u, cs=%u\n", ++ mmc_pdata->name, mmc_pdata->pins.gpio_di, ++ mmc_pdata->pins.gpio_do, ++ mmc_pdata->pins.gpio_clk, ++ mmc_pdata->pins.gpio_cs); ++ ++ return 0; ++ ++err_free_pdata: ++ kfree(d->spi_pdev->dev.platform_data); ++ d->spi_pdev->dev.platform_data = NULL; ++err_free_pdev: ++ platform_device_put(d->spi_pdev); ++err_free_d: ++ kfree(d); ++error: ++ return err; ++} ++ ++static int gpiommc_remove(struct platform_device *pdev) ++{ ++ struct gpiommc_device *d = platform_get_drvdata(pdev); ++ struct gpiommc_platform_data *pdata = d->pdev->dev.platform_data; ++ ++ platform_device_unregister(d->spi_pdev); ++ printk(KERN_INFO PFX "GPIO based MMC-Card \"%s\" removed\n", ++ pdata->name); ++ platform_device_put(d->spi_pdev); ++ ++ return 0; ++} ++ ++#ifdef CONFIG_GPIOMMC_CONFIGFS ++ ++/* A device that was created through configfs */ ++struct gpiommc_configfs_device { ++ struct config_item item; ++ /* The platform device, after registration. */ ++ struct platform_device *pdev; ++ /* The configuration */ ++ struct gpiommc_platform_data pdata; ++}; ++ ++#define GPIO_INVALID -1 ++ ++static inline bool gpiommc_is_registered(struct gpiommc_configfs_device *dev) ++{ ++ return (dev->pdev != NULL); ++} ++ ++static inline struct gpiommc_configfs_device *ci_to_gpiommc(struct config_item *item) ++{ ++ return item ? container_of(item, struct gpiommc_configfs_device, item) : NULL; ++} ++ ++static struct configfs_attribute gpiommc_attr_DI = { ++ .ca_owner = THIS_MODULE, ++ .ca_name = "gpio_data_in", ++ .ca_mode = S_IRUGO | S_IWUSR, ++}; ++ ++static struct configfs_attribute gpiommc_attr_DO = { ++ .ca_owner = THIS_MODULE, ++ .ca_name = "gpio_data_out", ++ .ca_mode = S_IRUGO | S_IWUSR, ++}; ++ ++static struct configfs_attribute gpiommc_attr_CLK = { ++ .ca_owner = THIS_MODULE, ++ .ca_name = "gpio_clock", ++ .ca_mode = S_IRUGO | S_IWUSR, ++}; ++ ++static struct configfs_attribute gpiommc_attr_CS = { ++ .ca_owner = THIS_MODULE, ++ .ca_name = "gpio_chipselect", ++ .ca_mode = S_IRUGO | S_IWUSR, ++}; ++ ++static struct configfs_attribute gpiommc_attr_CS_activelow = { ++ .ca_owner = THIS_MODULE, ++ .ca_name = "gpio_chipselect_activelow", ++ .ca_mode = S_IRUGO | S_IWUSR, ++}; ++ ++static struct configfs_attribute gpiommc_attr_spimode = { ++ .ca_owner = THIS_MODULE, ++ .ca_name = "spi_mode", ++ .ca_mode = S_IRUGO | S_IWUSR, ++}; ++ ++static struct configfs_attribute gpiommc_attr_spidelay = { ++ .ca_owner = THIS_MODULE, ++ .ca_name = "spi_delay", ++ .ca_mode = S_IRUGO | S_IWUSR, ++}; ++ ++static struct configfs_attribute gpiommc_attr_max_bus_speed = { ++ .ca_owner = THIS_MODULE, ++ .ca_name = "max_bus_speed", ++ .ca_mode = S_IRUGO | S_IWUSR, ++}; ++ ++static struct configfs_attribute gpiommc_attr_register = { ++ .ca_owner = THIS_MODULE, ++ .ca_name = "register", ++ .ca_mode = S_IRUGO | S_IWUSR, ++}; ++ ++static struct configfs_attribute *gpiommc_config_attrs[] = { ++ &gpiommc_attr_DI, ++ &gpiommc_attr_DO, ++ &gpiommc_attr_CLK, ++ &gpiommc_attr_CS, ++ &gpiommc_attr_CS_activelow, ++ &gpiommc_attr_spimode, ++ &gpiommc_attr_spidelay, ++ &gpiommc_attr_max_bus_speed, ++ &gpiommc_attr_register, ++ NULL, ++}; ++ ++static ssize_t gpiommc_config_attr_show(struct config_item *item, ++ struct configfs_attribute *attr, ++ char *page) ++{ ++ struct gpiommc_configfs_device *dev = ci_to_gpiommc(item); ++ ssize_t count = 0; ++ unsigned int gpio; ++ int err = 0; ++ ++ if (attr == &gpiommc_attr_DI) { ++ gpio = dev->pdata.pins.gpio_di; ++ if (gpio == GPIO_INVALID) ++ count = snprintf(page, PAGE_SIZE, "not configured\n"); ++ else ++ count = snprintf(page, PAGE_SIZE, "%u\n", gpio); ++ goto out; ++ } ++ if (attr == &gpiommc_attr_DO) { ++ gpio = dev->pdata.pins.gpio_do; ++ if (gpio == GPIO_INVALID) ++ count = snprintf(page, PAGE_SIZE, "not configured\n"); ++ else ++ count = snprintf(page, PAGE_SIZE, "%u\n", gpio); ++ goto out; ++ } ++ if (attr == &gpiommc_attr_CLK) { ++ gpio = dev->pdata.pins.gpio_clk; ++ if (gpio == GPIO_INVALID) ++ count = snprintf(page, PAGE_SIZE, "not configured\n"); ++ else ++ count = snprintf(page, PAGE_SIZE, "%u\n", gpio); ++ goto out; ++ } ++ if (attr == &gpiommc_attr_CS) { ++ gpio = dev->pdata.pins.gpio_cs; ++ if (gpio == GPIO_INVALID) ++ count = snprintf(page, PAGE_SIZE, "not configured\n"); ++ else ++ count = snprintf(page, PAGE_SIZE, "%u\n", gpio); ++ goto out; ++ } ++ if (attr == &gpiommc_attr_CS_activelow) { ++ count = snprintf(page, PAGE_SIZE, "%u\n", ++ dev->pdata.pins.cs_activelow); ++ goto out; ++ } ++ if (attr == &gpiommc_attr_spimode) { ++ count = snprintf(page, PAGE_SIZE, "%u\n", ++ dev->pdata.mode); ++ goto out; ++ } ++ if (attr == &gpiommc_attr_spidelay) { ++ count = snprintf(page, PAGE_SIZE, "%u\n", ++ !dev->pdata.no_spi_delay); ++ goto out; ++ } ++ if (attr == &gpiommc_attr_max_bus_speed) { ++ count = snprintf(page, PAGE_SIZE, "%u\n", ++ dev->pdata.max_bus_speed); ++ goto out; ++ } ++ if (attr == &gpiommc_attr_register) { ++ count = snprintf(page, PAGE_SIZE, "%u\n", ++ gpiommc_is_registered(dev)); ++ goto out; ++ } ++ WARN_ON(1); ++ err = -ENOSYS; ++out: ++ return err ? err : count; ++} ++ ++static int gpiommc_do_register(struct gpiommc_configfs_device *dev, ++ const char *name) ++{ ++ int err; ++ ++ if (gpiommc_is_registered(dev)) ++ return 0; ++ ++ if (!gpio_is_valid(dev->pdata.pins.gpio_di) || ++ !gpio_is_valid(dev->pdata.pins.gpio_do) || ++ !gpio_is_valid(dev->pdata.pins.gpio_clk) || ++ !gpio_is_valid(dev->pdata.pins.gpio_cs)) { ++ printk(KERN_ERR PFX ++ "configfs: Invalid GPIO pin number(s)\n"); ++ return -EINVAL; ++ } ++ ++ strlcpy(dev->pdata.name, name, ++ sizeof(dev->pdata.name)); ++ ++ dev->pdev = platform_device_alloc(GPIOMMC_PLATDEV_NAME, ++ gpiommc_next_id()); ++ if (!dev->pdev) ++ return -ENOMEM; ++ err = platform_device_add_data(dev->pdev, &dev->pdata, ++ sizeof(dev->pdata)); ++ if (err) { ++ platform_device_put(dev->pdev); ++ return err; ++ } ++ err = platform_device_add(dev->pdev); ++ if (err) { ++ platform_device_put(dev->pdev); ++ return err; ++ } ++ ++ return 0; ++} ++ ++static void gpiommc_do_unregister(struct gpiommc_configfs_device *dev) ++{ ++ if (!gpiommc_is_registered(dev)) ++ return; ++ ++ platform_device_unregister(dev->pdev); ++ dev->pdev = NULL; ++} ++ ++static ssize_t gpiommc_config_attr_store(struct config_item *item, ++ struct configfs_attribute *attr, ++ const char *page, size_t count) ++{ ++ struct gpiommc_configfs_device *dev = ci_to_gpiommc(item); ++ int err = -EINVAL; ++ unsigned long data; ++ ++ if (attr == &gpiommc_attr_register) { ++ err = strict_strtoul(page, 10, &data); ++ if (err) ++ goto out; ++ err = -EINVAL; ++ if (data == 1) ++ err = gpiommc_do_register(dev, item->ci_name); ++ if (data == 0) { ++ gpiommc_do_unregister(dev); ++ err = 0; ++ } ++ goto out; ++ } ++ ++ if (gpiommc_is_registered(dev)) { ++ /* The rest of the config parameters can only be set ++ * as long as the device is not registered, yet. */ ++ err = -EBUSY; ++ goto out; ++ } ++ ++ if (attr == &gpiommc_attr_DI) { ++ err = strict_strtoul(page, 10, &data); ++ if (err) ++ goto out; ++ err = -EINVAL; ++ if (!gpio_is_valid(data)) ++ goto out; ++ dev->pdata.pins.gpio_di = data; ++ err = 0; ++ goto out; ++ } ++ if (attr == &gpiommc_attr_DO) { ++ err = strict_strtoul(page, 10, &data); ++ if (err) ++ goto out; ++ err = -EINVAL; ++ if (!gpio_is_valid(data)) ++ goto out; ++ dev->pdata.pins.gpio_do = data; ++ err = 0; ++ goto out; ++ } ++ if (attr == &gpiommc_attr_CLK) { ++ err = strict_strtoul(page, 10, &data); ++ if (err) ++ goto out; ++ err = -EINVAL; ++ if (!gpio_is_valid(data)) ++ goto out; ++ dev->pdata.pins.gpio_clk = data; ++ err = 0; ++ goto out; ++ } ++ if (attr == &gpiommc_attr_CS) { ++ err = strict_strtoul(page, 10, &data); ++ if (err) ++ goto out; ++ err = -EINVAL; ++ if (!gpio_is_valid(data)) ++ goto out; ++ dev->pdata.pins.gpio_cs = data; ++ err = 0; ++ goto out; ++ } ++ if (attr == &gpiommc_attr_CS_activelow) { ++ err = strict_strtoul(page, 10, &data); ++ if (err) ++ goto out; ++ err = -EINVAL; ++ if (data != 0 && data != 1) ++ goto out; ++ dev->pdata.pins.cs_activelow = data; ++ err = 0; ++ goto out; ++ } ++ if (attr == &gpiommc_attr_spimode) { ++ err = strict_strtoul(page, 10, &data); ++ if (err) ++ goto out; ++ err = -EINVAL; ++ switch (data) { ++ case 0: ++ dev->pdata.mode = SPI_MODE_0; ++ break; ++ case 1: ++ dev->pdata.mode = SPI_MODE_1; ++ break; ++ case 2: ++ dev->pdata.mode = SPI_MODE_2; ++ break; ++ case 3: ++ dev->pdata.mode = SPI_MODE_3; ++ break; ++ default: ++ goto out; ++ } ++ err = 0; ++ goto out; ++ } ++ if (attr == &gpiommc_attr_spidelay) { ++ err = strict_strtoul(page, 10, &data); ++ if (err) ++ goto out; ++ err = -EINVAL; ++ if (data != 0 && data != 1) ++ goto out; ++ dev->pdata.no_spi_delay = !data; ++ err = 0; ++ goto out; ++ } ++ if (attr == &gpiommc_attr_max_bus_speed) { ++ err = strict_strtoul(page, 10, &data); ++ if (err) ++ goto out; ++ err = -EINVAL; ++ if (data > UINT_MAX) ++ goto out; ++ dev->pdata.max_bus_speed = data; ++ err = 0; ++ goto out; ++ } ++ WARN_ON(1); ++ err = -ENOSYS; ++out: ++ return err ? err : count; ++} ++ ++static void gpiommc_config_item_release(struct config_item *item) ++{ ++ struct gpiommc_configfs_device *dev = ci_to_gpiommc(item); ++ ++ kfree(dev); ++} ++ ++static struct configfs_item_operations gpiommc_config_item_ops = { ++ .release = gpiommc_config_item_release, ++ .show_attribute = gpiommc_config_attr_show, ++ .store_attribute = gpiommc_config_attr_store, ++}; ++ ++static struct config_item_type gpiommc_dev_ci_type = { ++ .ct_item_ops = &gpiommc_config_item_ops, ++ .ct_attrs = gpiommc_config_attrs, ++ .ct_owner = THIS_MODULE, ++}; ++ ++static struct config_item *gpiommc_make_item(struct config_group *group, ++ const char *name) ++{ ++ struct gpiommc_configfs_device *dev; ++ ++ if (strlen(name) > GPIOMMC_MAX_NAMELEN) { ++ printk(KERN_ERR PFX "configfs: device name too long\n"); ++ return NULL; ++ } ++ ++ dev = kzalloc(sizeof(*dev), GFP_KERNEL); ++ if (!dev) ++ return NULL; ++ ++ config_item_init_type_name(&dev->item, name, ++ &gpiommc_dev_ci_type); ++ ++ /* Assign default configuration */ ++ dev->pdata.pins.gpio_di = GPIO_INVALID; ++ dev->pdata.pins.gpio_do = GPIO_INVALID; ++ dev->pdata.pins.gpio_clk = GPIO_INVALID; ++ dev->pdata.pins.gpio_cs = GPIO_INVALID; ++ dev->pdata.pins.cs_activelow = 1; ++ dev->pdata.mode = SPI_MODE_0; ++ dev->pdata.no_spi_delay = 0; ++ dev->pdata.max_bus_speed = 5000000; /* 5 MHz */ ++ ++ return &(dev->item); ++} ++ ++static void gpiommc_drop_item(struct config_group *group, ++ struct config_item *item) ++{ ++ struct gpiommc_configfs_device *dev = ci_to_gpiommc(item); ++ ++ gpiommc_do_unregister(dev); ++ kfree(dev); ++} ++ ++static struct configfs_group_operations gpiommc_ct_group_ops = { ++ .make_item = gpiommc_make_item, ++ .drop_item = gpiommc_drop_item, ++}; ++ ++static struct config_item_type gpiommc_ci_type = { ++ .ct_group_ops = &gpiommc_ct_group_ops, ++ .ct_owner = THIS_MODULE, ++}; ++ ++static struct configfs_subsystem gpiommc_subsys = { ++ .su_group = { ++ .cg_item = { ++ .ci_namebuf = GPIOMMC_PLATDEV_NAME, ++ .ci_type = &gpiommc_ci_type, ++ }, ++ }, ++ .su_mutex = __MUTEX_INITIALIZER(gpiommc_subsys.su_mutex), ++}; ++ ++#endif /* CONFIG_GPIOMMC_CONFIGFS */ ++ ++static struct platform_driver gpiommc_plat_driver = { ++ .probe = gpiommc_probe, ++ .remove = gpiommc_remove, ++ .driver = { ++ .name = GPIOMMC_PLATDEV_NAME, ++ .owner = THIS_MODULE, ++ }, ++}; ++ ++int gpiommc_next_id(void) ++{ ++ static atomic_t counter = ATOMIC_INIT(-1); ++ ++ return atomic_inc_return(&counter); ++} ++EXPORT_SYMBOL(gpiommc_next_id); ++ ++static int __init gpiommc_modinit(void) ++{ ++ int err; ++ ++ err = platform_driver_register(&gpiommc_plat_driver); ++ if (err) ++ return err; ++ ++#ifdef CONFIG_GPIOMMC_CONFIGFS ++ config_group_init(&gpiommc_subsys.su_group); ++ err = configfs_register_subsystem(&gpiommc_subsys); ++ if (err) { ++ platform_driver_unregister(&gpiommc_plat_driver); ++ return err; ++ } ++#endif /* CONFIG_GPIOMMC_CONFIGFS */ ++ ++ return 0; ++} ++module_init(gpiommc_modinit); ++ ++static void __exit gpiommc_modexit(void) ++{ ++#ifdef CONFIG_GPIOMMC_CONFIGFS ++ configfs_unregister_subsystem(&gpiommc_subsys); ++#endif ++ platform_driver_unregister(&gpiommc_plat_driver); ++} ++module_exit(gpiommc_modexit); +--- a/drivers/mmc/host/Kconfig ++++ b/drivers/mmc/host/Kconfig +@@ -458,6 +458,31 @@ config MMC_SDHI + This provides support for the SDHI SD/SDIO controller found in + SuperH and ARM SH-Mobile SoCs + ++config GPIOMMC ++ tristate "MMC/SD over GPIO-based SPI" ++ depends on MMC && MMC_SPI && SPI_GPIO_OLD ++ help ++ This driver hooks up the mmc_spi and spi_gpio modules so that ++ MMC/SD cards can be used on a GPIO based bus by bitbanging ++ the SPI protocol in software. ++ ++ This driver provides a configfs interface to dynamically create ++ and destroy GPIO-based MMC/SD card devices. It also provides ++ a platform device interface API. ++ See Documentation/gpiommc.txt for details. ++ ++ The module will be called gpiommc. ++ ++ If unsure, say N. ++ ++config GPIOMMC_CONFIGFS ++ bool ++ depends on GPIOMMC && CONFIGFS_FS ++ default y ++ help ++ This option automatically enables configfs support for gpiommc ++ if configfs is available. ++ + config MMC_CB710 + tristate "ENE CB710 MMC/SD Interface support" + depends on PCI +--- a/drivers/mmc/host/Makefile ++++ b/drivers/mmc/host/Makefile +@@ -37,6 +37,7 @@ endif + obj-$(CONFIG_MMC_SDHI) += sh_mobile_sdhi.o + obj-$(CONFIG_MMC_CB710) += cb710-mmc.o + obj-$(CONFIG_MMC_VIA_SDMMC) += via-sdmmc.o ++obj-$(CONFIG_GPIOMMC) += gpiommc.o + obj-$(CONFIG_SDH_BFIN) += bfin_sdh.o + obj-$(CONFIG_MMC_DW) += dw_mmc.o + obj-$(CONFIG_MMC_SH_MMCIF) += sh_mmcif.o +--- /dev/null ++++ b/include/linux/mmc/gpiommc.h +@@ -0,0 +1,71 @@ ++/* ++ * Device driver for MMC/SD cards driven over a GPIO bus. ++ * ++ * Copyright (c) 2008 Michael Buesch ++ * ++ * Licensed under the GNU/GPL version 2. ++ */ ++#ifndef LINUX_GPIOMMC_H_ ++#define LINUX_GPIOMMC_H_ ++ ++#include ++ ++ ++#define GPIOMMC_MAX_NAMELEN 15 ++#define GPIOMMC_MAX_NAMELEN_STR __stringify(GPIOMMC_MAX_NAMELEN) ++ ++/** ++ * struct gpiommc_pins - Hardware pin assignments ++ * ++ * @gpio_di: The GPIO number of the DATA IN pin ++ * @gpio_do: The GPIO number of the DATA OUT pin ++ * @gpio_clk: The GPIO number of the CLOCK pin ++ * @gpio_cs: The GPIO number of the CHIPSELECT pin ++ * @cs_activelow: If true, the chip is considered selected if @gpio_cs is low. ++ */ ++struct gpiommc_pins { ++ unsigned int gpio_di; ++ unsigned int gpio_do; ++ unsigned int gpio_clk; ++ unsigned int gpio_cs; ++ bool cs_activelow; ++}; ++ ++/** ++ * struct gpiommc_platform_data - Platform data for a MMC-over-SPI-GPIO device. ++ * ++ * @name: The unique name string of the device. ++ * @pins: The hardware pin assignments. ++ * @mode: The hardware mode. This is either SPI_MODE_0, ++ * SPI_MODE_1, SPI_MODE_2 or SPI_MODE_3. See the SPI documentation. ++ * @no_spi_delay: Do not use delays in the lowlevel SPI bitbanging code. ++ * This is not standards compliant, but may be required for some ++ * embedded machines to gain reasonable speed. ++ * @max_bus_speed: The maximum speed of the SPI bus, in Hertz. ++ */ ++struct gpiommc_platform_data { ++ char name[GPIOMMC_MAX_NAMELEN + 1]; ++ struct gpiommc_pins pins; ++ u8 mode; ++ bool no_spi_delay; ++ unsigned int max_bus_speed; ++}; ++ ++/** ++ * GPIOMMC_PLATDEV_NAME - The platform device name string. ++ * ++ * The name string that has to be used for platform_device_alloc ++ * when allocating a gpiommc device. ++ */ ++#define GPIOMMC_PLATDEV_NAME "gpiommc" ++ ++/** ++ * gpiommc_next_id - Get another platform device ID number. ++ * ++ * This returns the next platform device ID number that has to be used ++ * for platform_device_alloc. The ID is opaque and should not be used for ++ * anything else. ++ */ ++int gpiommc_next_id(void); ++ ++#endif /* LINUX_GPIOMMC_H_ */ +--- /dev/null ++++ b/Documentation/gpiommc.txt +@@ -0,0 +1,97 @@ ++GPIOMMC - Driver for an MMC/SD card on a bitbanging GPIO SPI bus ++================================================================ ++ ++The gpiommc module hooks up the mmc_spi and spi_gpio modules for running an ++MMC or SD card on GPIO pins. ++ ++Two interfaces for registering a new MMC/SD card device are provided: ++A static platform-device based mechanism and a dynamic configfs based interface. ++ ++ ++Registering devices via platform-device ++======================================= ++ ++The platform-device interface is used for registering MMC/SD devices that are ++part of the hardware platform. This is most useful only for embedded machines ++with MMC/SD devices statically connected to the platform GPIO bus. ++ ++The data structures are declared in . ++ ++To register a new device, define an instance of struct gpiommc_platform_data. ++This structure holds any information about how the device is hooked up to the ++GPIO pins and what hardware modes the device supports. See the docbook-style ++documentation in the header file for more information on the struct fields. ++ ++Then allocate a new instance of a platform device by doing: ++ ++ pdev = platform_device_alloc(GPIOMMC_PLATDEV_NAME, gpiommc_next_id()); ++ ++This will allocate the platform device data structures and hook it up to the ++gpiommc driver. ++Then add the gpiommc_platform_data to the platform device. ++ ++ err = platform_device_add_data(pdev, pdata, sizeof(struct gpiommc_platform_data)); ++ ++You may free the local instance of struct gpiommc_platform_data now. (So the ++struct may be allocated on the stack, too). ++Now simply register the platform device. ++ ++ err = platform_device_add(pdev); ++ ++Done. The gpiommc probe routine will be invoked now and you should see a kernel ++log message for the added device. ++ ++ ++Registering devices via configfs ++================================ ++ ++MMC/SD cards connected via GPIO often are a pretty dynamic thing, as for example ++selfmade hacks for soldering an MMC/SD card to standard GPIO pins on embedded ++hardware are a common situation. ++So we provide a dynamic interface to conveniently handle adding and removing ++devices from userspace, without the need to recompile the kernel. ++ ++The "gpiommc" subdirectory at the configfs mountpoint is used for handling ++the dynamic configuration. ++ ++To create a new device, it must first be allocated with mkdir. ++The following command will allocate a device named "my_mmc": ++ mkdir /config/gpiommc/my_mmc ++ ++There are several configuration files available in the new ++/config/gpiommc/my_mmc/ directory: ++ ++gpio_data_in = The SPI data-IN GPIO pin number. ++gpio_data_out = The SPI data-OUT GPIO pin number. ++gpio_clock = The SPI Clock GPIO pin number. ++gpio_chipselect = The SPI Chipselect GPIO pin number. ++gpio_chipselect_activelow = Boolean. If 0, Chipselect is active-HIGH. ++ If 1, Chipselect is active-LOW. ++spi_mode = The SPI data mode. Can be 0-3. ++spi_delay = Enable all delays in the lowlevel bitbanging. ++max_bus_speed = The maximum SPI bus speed. In Hertz. ++ ++register = Not a configuration parameter. ++ Used to register the configured card ++ with the kernel. ++ ++The device must first get configured and then registered by writing "1" to ++the "register" file. ++The configuration parameters "gpio_data_in", "gpio_data_out", "gpio_clock" ++and "gpio_chipselect" are essential and _must_ be configured before writing ++"1" to the "register" file. The registration will fail, otherwise. ++ ++The default values for the other parameters are: ++gpio_chipselect_activelow = 1 (CS active-LOW) ++spi_mode = 0 (SPI_MODE_0) ++spi_delay = 1 (enabled) ++max_bus_speed = 5000000 (5 Mhz) ++ ++Configuration values can not be changed after registration. To unregister ++the device, write a "0" to the "register" file. The configuration can be ++changed again after unregistering. ++ ++To completely remove the device, simply rmdir the directory ++(/config/gpiommc/my_mmc in this example). ++There's no need to first unregister the device before removing it. That will ++be done automatically. +--- a/MAINTAINERS ++++ b/MAINTAINERS +@@ -2888,6 +2888,11 @@ T: git git://git.kernel.org/pub/scm/linu + S: Maintained + F: drivers/media/video/gspca/ + ++GPIOMMC DRIVER ++P: Michael Buesch ++M: mb@bu3sch.de ++S: Maintained ++ + HARDWARE MONITORING + M: Jean Delvare + M: Guenter Roeck diff --git a/target/linux/generic/patches-2.6.39/864-gpiommc_configfs_locking.patch b/target/linux/generic/patches-2.6.39/864-gpiommc_configfs_locking.patch new file mode 100644 index 00000000000..2e4e820b2be --- /dev/null +++ b/target/linux/generic/patches-2.6.39/864-gpiommc_configfs_locking.patch @@ -0,0 +1,58 @@ +The gpiommc configfs context structure needs locking, as configfs +does not lock access between files. + +--- a/drivers/mmc/host/gpiommc.c ++++ b/drivers/mmc/host/gpiommc.c +@@ -143,6 +143,8 @@ struct gpiommc_configfs_device { + struct platform_device *pdev; + /* The configuration */ + struct gpiommc_platform_data pdata; ++ /* Mutex to protect this structure */ ++ struct mutex mutex; + }; + + #define GPIO_INVALID -1 +@@ -233,6 +235,8 @@ static ssize_t gpiommc_config_attr_show( + unsigned int gpio; + int err = 0; + ++ mutex_lock(&dev->mutex); ++ + if (attr == &gpiommc_attr_DI) { + gpio = dev->pdata.pins.gpio_di; + if (gpio == GPIO_INVALID) +@@ -293,6 +297,8 @@ static ssize_t gpiommc_config_attr_show( + WARN_ON(1); + err = -ENOSYS; + out: ++ mutex_unlock(&dev->mutex); ++ + return err ? err : count; + } + +@@ -352,6 +358,8 @@ static ssize_t gpiommc_config_attr_store + int err = -EINVAL; + unsigned long data; + ++ mutex_lock(&dev->mutex); ++ + if (attr == &gpiommc_attr_register) { + err = strict_strtoul(page, 10, &data); + if (err) +@@ -477,6 +485,8 @@ static ssize_t gpiommc_config_attr_store + WARN_ON(1); + err = -ENOSYS; + out: ++ mutex_unlock(&dev->mutex); ++ + return err ? err : count; + } + +@@ -513,6 +523,7 @@ static struct config_item *gpiommc_make_ + if (!dev) + return NULL; + ++ mutex_init(&dev->mutex); + config_item_init_type_name(&dev->item, name, + &gpiommc_dev_ci_type); + diff --git a/target/linux/generic/patches-2.6.39/870-hifn795x_byteswap.patch b/target/linux/generic/patches-2.6.39/870-hifn795x_byteswap.patch new file mode 100644 index 00000000000..3a37c951ec0 --- /dev/null +++ b/target/linux/generic/patches-2.6.39/870-hifn795x_byteswap.patch @@ -0,0 +1,17 @@ +--- a/drivers/crypto/hifn_795x.c ++++ b/drivers/crypto/hifn_795x.c +@@ -682,12 +682,12 @@ static inline u32 hifn_read_1(struct hif + + static inline void hifn_write_0(struct hifn_device *dev, u32 reg, u32 val) + { +- writel((__force u32)cpu_to_le32(val), dev->bar[0] + reg); ++ writel(val, dev->bar[0] + reg); + } + + static inline void hifn_write_1(struct hifn_device *dev, u32 reg, u32 val) + { +- writel((__force u32)cpu_to_le32(val), dev->bar[1] + reg); ++ writel(val, dev->bar[1] + reg); + } + + static void hifn_wait_puc(struct hifn_device *dev) diff --git a/target/linux/generic/patches-2.6.39/900-slab_maxsize.patch b/target/linux/generic/patches-2.6.39/900-slab_maxsize.patch new file mode 100644 index 00000000000..1c9569450ad --- /dev/null +++ b/target/linux/generic/patches-2.6.39/900-slab_maxsize.patch @@ -0,0 +1,13 @@ +--- a/include/linux/slab.h ++++ b/include/linux/slab.h +@@ -127,8 +127,8 @@ unsigned int kmem_cache_size(struct kmem + * to do various tricks to work around compiler limitations in order to + * ensure proper constant folding. + */ +-#define KMALLOC_SHIFT_HIGH ((MAX_ORDER + PAGE_SHIFT - 1) <= 25 ? \ +- (MAX_ORDER + PAGE_SHIFT - 1) : 25) ++#define KMALLOC_SHIFT_HIGH ((MAX_ORDER + PAGE_SHIFT - 1) <= 17 ? \ ++ (MAX_ORDER + PAGE_SHIFT - 1) : 17) + + #define KMALLOC_MAX_SIZE (1UL << KMALLOC_SHIFT_HIGH) + #define KMALLOC_MAX_ORDER (KMALLOC_SHIFT_HIGH - PAGE_SHIFT) diff --git a/target/linux/generic/patches-2.6.39/902-darwin_scripts_include.patch b/target/linux/generic/patches-2.6.39/902-darwin_scripts_include.patch deleted file mode 100644 index 0686a389735..00000000000 --- a/target/linux/generic/patches-2.6.39/902-darwin_scripts_include.patch +++ /dev/null @@ -1,78 +0,0 @@ ---- a/scripts/kallsyms.c -+++ b/scripts/kallsyms.c -@@ -22,6 +22,35 @@ - #include - #include - #include -+#ifdef __APPLE__ -+/* Darwin has no memmem implementation, this one is ripped of the uClibc-0.9.28 source */ -+void *memmem (const void *haystack, size_t haystack_len, -+ const void *needle, size_t needle_len) -+{ -+ const char *begin; -+ const char *const last_possible -+ = (const char *) haystack + haystack_len - needle_len; -+ -+ if (needle_len == 0) -+ /* The first occurrence of the empty string is deemed to occur at -+ the beginning of the string. */ -+ return (void *) haystack; -+ -+ /* Sanity check, otherwise the loop might search through the whole -+ memory. */ -+ if (__builtin_expect (haystack_len < needle_len, 0)) -+ return NULL; -+ -+ for (begin = (const char *) haystack; begin <= last_possible; ++begin) -+ if (begin[0] == ((const char *) needle)[0] && -+ !memcmp ((const void *) &begin[1], -+ (const void *) ((const char *) needle + 1), -+ needle_len - 1)) -+ return (void *) begin; -+ -+ return NULL; -+} -+#endif - - #ifndef ARRAY_SIZE - #define ARRAY_SIZE(arr) (sizeof(arr) / sizeof(arr[0])) ---- a/scripts/kconfig/Makefile -+++ b/scripts/kconfig/Makefile -@@ -147,6 +147,9 @@ check-lxdialog := $(srctree)/$(src)/lxd - # we really need to do so. (Do not call gcc as part of make mrproper) - HOST_EXTRACFLAGS += $(shell $(CONFIG_SHELL) $(check-lxdialog) -ccflags) \ - -DLOCALE -+ifeq ($(shell uname -s),Darwin) -+HOST_LOADLIBES += -lncurses -+endif - - # =========================================================================== - # Shared Makefile for the various kconfig executables: ---- a/scripts/mod/mk_elfconfig.c -+++ b/scripts/mod/mk_elfconfig.c -@@ -1,7 +1,11 @@ - #include - #include - #include -+#ifndef __APPLE__ - #include -+#else -+#include "../../../../../tools/sstrip/include/elf.h" -+#endif - - int - main(int argc, char **argv) ---- a/scripts/mod/modpost.h -+++ b/scripts/mod/modpost.h -@@ -7,7 +7,11 @@ - #include - #include - #include -+#if !(defined(__APPLE__) || defined(__CYGWIN__)) - #include -+#else -+#include "../../../../../tools/sstrip/include/elf.h" -+#endif - - #include "elfconfig.h" - diff --git a/target/linux/generic/patches-2.6.39/903-hostap_txpower.patch b/target/linux/generic/patches-2.6.39/903-hostap_txpower.patch deleted file mode 100644 index e4c1803ff54..00000000000 --- a/target/linux/generic/patches-2.6.39/903-hostap_txpower.patch +++ /dev/null @@ -1,154 +0,0 @@ ---- a/drivers/net/wireless/hostap/hostap_ap.c -+++ b/drivers/net/wireless/hostap/hostap_ap.c -@@ -2338,13 +2338,13 @@ int prism2_ap_get_sta_qual(local_info_t - addr[count].sa_family = ARPHRD_ETHER; - memcpy(addr[count].sa_data, sta->addr, ETH_ALEN); - if (sta->last_rx_silence == 0) -- qual[count].qual = sta->last_rx_signal < 27 ? -- 0 : (sta->last_rx_signal - 27) * 92 / 127; -+ qual[count].qual = (sta->last_rx_signal - 156) == 0 ? -+ 0 : (sta->last_rx_signal - 156) * 92 / 64; - else -- qual[count].qual = sta->last_rx_signal - -- sta->last_rx_silence - 35; -- qual[count].level = HFA384X_LEVEL_TO_dBm(sta->last_rx_signal); -- qual[count].noise = HFA384X_LEVEL_TO_dBm(sta->last_rx_silence); -+ qual[count].qual = (sta->last_rx_signal - -+ sta->last_rx_silence) * 92 / 64; -+ qual[count].level = sta->last_rx_signal; -+ qual[count].noise = sta->last_rx_silence; - qual[count].updated = sta->last_rx_updated; - - sta->last_rx_updated = IW_QUAL_DBM; -@@ -2410,13 +2410,13 @@ int prism2_ap_translate_scan(struct net_ - memset(&iwe, 0, sizeof(iwe)); - iwe.cmd = IWEVQUAL; - if (sta->last_rx_silence == 0) -- iwe.u.qual.qual = sta->last_rx_signal < 27 ? -- 0 : (sta->last_rx_signal - 27) * 92 / 127; -+ iwe.u.qual.qual = (sta->last_rx_signal -156) == 0 ? -+ 0 : (sta->last_rx_signal - 156) * 92 / 64; - else -- iwe.u.qual.qual = sta->last_rx_signal - -- sta->last_rx_silence - 35; -- iwe.u.qual.level = HFA384X_LEVEL_TO_dBm(sta->last_rx_signal); -- iwe.u.qual.noise = HFA384X_LEVEL_TO_dBm(sta->last_rx_silence); -+ iwe.u.qual.qual = (sta->last_rx_signal - -+ sta->last_rx_silence) * 92 / 64; -+ iwe.u.qual.level = sta->last_rx_signal; -+ iwe.u.qual.noise = sta->last_rx_silence; - iwe.u.qual.updated = sta->last_rx_updated; - iwe.len = IW_EV_QUAL_LEN; - current_ev = iwe_stream_add_event(info, current_ev, end_buf, ---- a/drivers/net/wireless/hostap/hostap_config.h -+++ b/drivers/net/wireless/hostap/hostap_config.h -@@ -45,4 +45,9 @@ - */ - /* #define PRISM2_NO_STATION_MODES */ - -+/* Enable TX power Setting functions -+ * (min att = -128 , max att = 127) -+ */ -+#define RAW_TXPOWER_SETTING -+ - #endif /* HOSTAP_CONFIG_H */ ---- a/drivers/net/wireless/hostap/hostap.h -+++ b/drivers/net/wireless/hostap/hostap.h -@@ -90,6 +90,7 @@ extern const struct iw_handler_def hosta - extern const struct ethtool_ops prism2_ethtool_ops; - - int hostap_ioctl(struct net_device *dev, struct ifreq *ifr, int cmd); -+int hostap_restore_power(struct net_device *dev); - - - #endif /* HOSTAP_H */ ---- a/drivers/net/wireless/hostap/hostap_hw.c -+++ b/drivers/net/wireless/hostap/hostap_hw.c -@@ -932,6 +932,7 @@ static int hfa384x_set_rid(struct net_de - prism2_hw_reset(dev); - } - -+ hostap_restore_power(dev); - return res; - } - ---- a/drivers/net/wireless/hostap/hostap_info.c -+++ b/drivers/net/wireless/hostap/hostap_info.c -@@ -433,6 +433,11 @@ static void handle_info_queue_linkstatus - } - - /* Get BSSID if we have a valid AP address */ -+ -+ if ( val == HFA384X_LINKSTATUS_CONNECTED || -+ val == HFA384X_LINKSTATUS_DISCONNECTED ) -+ hostap_restore_power(local->dev); -+ - if (connected) { - netif_carrier_on(local->dev); - netif_carrier_on(local->ddev); ---- a/drivers/net/wireless/hostap/hostap_ioctl.c -+++ b/drivers/net/wireless/hostap/hostap_ioctl.c -@@ -1477,23 +1477,20 @@ static int prism2_txpower_hfa386x_to_dBm - val = 255; - - tmp = val; -- tmp >>= 2; - -- return -12 - tmp; -+ return tmp; - } - - static u16 prism2_txpower_dBm_to_hfa386x(int val) - { - signed char tmp; - -- if (val > 20) -- return 128; -- else if (val < -43) -+ if (val > 127) - return 127; -+ else if (val < -128) -+ return 128; - - tmp = val; -- tmp = -12 - tmp; -- tmp <<= 2; - - return (unsigned char) tmp; - } -@@ -4056,3 +4053,35 @@ int hostap_ioctl(struct net_device *dev, - - return ret; - } -+ -+/* BUG FIX: Restore power setting value when lost due to F/W bug */ -+ -+int hostap_restore_power(struct net_device *dev) -+{ -+ struct hostap_interface *iface = netdev_priv(dev); -+ local_info_t *local = iface->local; -+ -+ u16 val; -+ int ret = 0; -+ -+ if (local->txpower_type == PRISM2_TXPOWER_OFF) { -+ val = 0xff; /* use all standby and sleep modes */ -+ ret = local->func->cmd(dev, HFA384X_CMDCODE_WRITEMIF, -+ HFA386X_CR_A_D_TEST_MODES2, -+ &val, NULL); -+ } -+ -+#ifdef RAW_TXPOWER_SETTING -+ if (local->txpower_type == PRISM2_TXPOWER_FIXED) { -+ val = HFA384X_TEST_CFG_BIT_ALC; -+ local->func->cmd(dev, HFA384X_CMDCODE_TEST | -+ (HFA384X_TEST_CFG_BITS << 8), 0, &val, NULL); -+ val = prism2_txpower_dBm_to_hfa386x(local->txpower); -+ ret = (local->func->cmd(dev, HFA384X_CMDCODE_WRITEMIF, -+ HFA386X_CR_MANUAL_TX_POWER, &val, NULL)); -+ } -+#endif /* RAW_TXPOWER_SETTING */ -+ return (ret ? -EOPNOTSUPP : 0); -+} -+ -+EXPORT_SYMBOL(hostap_restore_power); diff --git a/target/linux/generic/patches-2.6.39/903-stddef_include.patch b/target/linux/generic/patches-2.6.39/903-stddef_include.patch deleted file mode 100644 index 7fe248d8d33..00000000000 --- a/target/linux/generic/patches-2.6.39/903-stddef_include.patch +++ /dev/null @@ -1,17 +0,0 @@ ---- a/include/linux/stddef.h -+++ b/include/linux/stddef.h -@@ -16,6 +16,7 @@ enum { - false = 0, - true = 1 - }; -+#endif /* __KERNEL__ */ - - #undef offsetof - #ifdef __compiler_offsetof -@@ -23,6 +24,5 @@ enum { - #else - #define offsetof(TYPE, MEMBER) ((size_t) &((TYPE *)0)->MEMBER) - #endif --#endif /* __KERNEL__ */ - - #endif diff --git a/target/linux/generic/patches-2.6.39/910-kobject_uevent.patch b/target/linux/generic/patches-2.6.39/910-kobject_uevent.patch new file mode 100644 index 00000000000..f15749fa178 --- /dev/null +++ b/target/linux/generic/patches-2.6.39/910-kobject_uevent.patch @@ -0,0 +1,32 @@ +--- a/lib/kobject_uevent.c ++++ b/lib/kobject_uevent.c +@@ -49,6 +49,18 @@ static const char *kobject_actions[] = { + [KOBJ_OFFLINE] = "offline", + }; + ++u64 uevent_next_seqnum(void) ++{ ++ u64 seq; ++ ++ spin_lock(&sequence_lock); ++ seq = ++uevent_seqnum; ++ spin_unlock(&sequence_lock); ++ ++ return seq; ++} ++EXPORT_SYMBOL_GPL(uevent_next_seqnum); ++ + /** + * kobject_action_type - translate action string to numeric type + * +@@ -244,9 +256,7 @@ int kobject_uevent_env(struct kobject *k + kobj->state_remove_uevent_sent = 1; + + /* we will send an event, so request a new sequence number */ +- spin_lock(&sequence_lock); +- seq = ++uevent_seqnum; +- spin_unlock(&sequence_lock); ++ seq = uevent_next_seqnum(); + retval = add_uevent_var(env, "SEQNUM=%llu", (unsigned long long)seq); + if (retval) + goto exit; diff --git a/target/linux/generic/patches-2.6.39/911-kobject_add_broadcast_uevent.patch b/target/linux/generic/patches-2.6.39/911-kobject_add_broadcast_uevent.patch new file mode 100644 index 00000000000..a428ec5cd15 --- /dev/null +++ b/target/linux/generic/patches-2.6.39/911-kobject_add_broadcast_uevent.patch @@ -0,0 +1,85 @@ +--- a/include/linux/kobject.h ++++ b/include/linux/kobject.h +@@ -31,6 +31,8 @@ + #define UEVENT_NUM_ENVP 32 /* number of env pointers */ + #define UEVENT_BUFFER_SIZE 2048 /* buffer for the variables */ + ++struct sk_buff; ++ + /* path to the userspace helper executed on an event */ + extern char uevent_helper[]; + +@@ -217,6 +219,10 @@ int add_uevent_var(struct kobj_uevent_en + + int kobject_action_type(const char *buf, size_t count, + enum kobject_action *type); ++ ++int broadcast_uevent(struct sk_buff *skb, __u32 pid, __u32 group, ++ gfp_t allocation); ++ + #else + static inline int kobject_uevent(struct kobject *kobj, + enum kobject_action action) +@@ -233,6 +239,16 @@ int add_uevent_var(struct kobj_uevent_en + static inline int kobject_action_type(const char *buf, size_t count, + enum kobject_action *type) + { return -EINVAL; } ++ ++void kfree_skb(struct sk_buff *); ++ ++static inline int broadcast_uevent(struct sk_buff *skb, __u32 pid, __u32 group, ++ gfp_t allocation) ++{ ++ kfree_skb(skb); ++ return 0; ++} ++ + #endif + + #endif /* _KOBJECT_H_ */ +--- a/lib/kobject_uevent.c ++++ b/lib/kobject_uevent.c +@@ -377,6 +377,43 @@ int add_uevent_var(struct kobj_uevent_en + EXPORT_SYMBOL_GPL(add_uevent_var); + + #if defined(CONFIG_NET) ++int broadcast_uevent(struct sk_buff *skb, __u32 pid, __u32 group, ++ gfp_t allocation) ++{ ++ struct uevent_sock *ue_sk; ++ int err = 0; ++ ++ /* send netlink message */ ++ mutex_lock(&uevent_sock_mutex); ++ list_for_each_entry(ue_sk, &uevent_sock_list, list) { ++ struct sock *uevent_sock = ue_sk->sk; ++ struct sk_buff *skb2; ++ ++ skb2 = skb_clone(skb, allocation); ++ if (!skb2) ++ break; ++ ++ err = netlink_broadcast(uevent_sock, skb2, pid, group, ++ allocation); ++ if (err) ++ break; ++ } ++ mutex_unlock(&uevent_sock_mutex); ++ ++ kfree_skb(skb); ++ return err; ++} ++#else ++int broadcast_uevent(struct sk_buff *skb, __u32 pid, __u32 group, ++ gfp_t allocation) ++{ ++ kfree_skb(skb); ++ return 0; ++} ++#endif ++EXPORT_SYMBOL_GPL(broadcast_uevent); ++ ++#if defined(CONFIG_NET) + static int uevent_net_init(struct net *net) + { + struct uevent_sock *ue_sk; diff --git a/target/linux/generic/patches-2.6.39/920-01-hotpluggable-spi-gpio.patch b/target/linux/generic/patches-2.6.39/920-01-hotpluggable-spi-gpio.patch deleted file mode 100644 index f8e6374fa76..00000000000 --- a/target/linux/generic/patches-2.6.39/920-01-hotpluggable-spi-gpio.patch +++ /dev/null @@ -1,60 +0,0 @@ -Fix spi-gpio for hotplug. - ---mb - - - ---- a/drivers/spi/spi_gpio.c -+++ b/drivers/spi/spi_gpio.c -@@ -255,7 +255,7 @@ static void spi_gpio_cleanup(struct spi_ - spi_bitbang_cleanup(spi); - } - --static int __init spi_gpio_alloc(unsigned pin, const char *label, bool is_in) -+static int __devinit spi_gpio_alloc(unsigned pin, const char *label, bool is_in) - { - int value; - -@@ -269,7 +269,7 @@ static int __init spi_gpio_alloc(unsigne - return value; - } - --static int __init -+static int __devinit - spi_gpio_request(struct spi_gpio_platform_data *pdata, const char *label, - u16 *res_flags) - { -@@ -311,7 +311,7 @@ done: - return value; - } - --static int __init spi_gpio_probe(struct platform_device *pdev) -+static int __devinit spi_gpio_probe(struct platform_device *pdev) - { - int status; - struct spi_master *master; -@@ -379,7 +379,7 @@ gpio_free: - return status; - } - --static int __exit spi_gpio_remove(struct platform_device *pdev) -+static int __devexit spi_gpio_remove(struct platform_device *pdev) - { - struct spi_gpio *spi_gpio; - struct spi_gpio_platform_data *pdata; -@@ -408,12 +408,13 @@ MODULE_ALIAS("platform:" DRIVER_NAME); - static struct platform_driver spi_gpio_driver = { - .driver.name = DRIVER_NAME, - .driver.owner = THIS_MODULE, -- .remove = __exit_p(spi_gpio_remove), -+ .probe = spi_gpio_probe, -+ .remove = __devexit_p(spi_gpio_remove), - }; - - static int __init spi_gpio_init(void) - { -- return platform_driver_probe(&spi_gpio_driver, spi_gpio_probe); -+ return platform_driver_register(&spi_gpio_driver); - } - module_init(spi_gpio_init); - diff --git a/target/linux/generic/patches-2.6.39/920-04-spi-gpio-implement-spi-delay.patch b/target/linux/generic/patches-2.6.39/920-04-spi-gpio-implement-spi-delay.patch deleted file mode 100644 index 4b145c27342..00000000000 --- a/target/linux/generic/patches-2.6.39/920-04-spi-gpio-implement-spi-delay.patch +++ /dev/null @@ -1,58 +0,0 @@ -Implement the SPI-GPIO delay function for busses that need speed limitation. - ---mb - - - ---- a/drivers/spi/spi_gpio.c -+++ b/drivers/spi/spi_gpio.c -@@ -21,6 +21,7 @@ - #include - #include - #include -+#include - - #include - #include -@@ -69,6 +70,7 @@ struct spi_gpio { - * #define SPI_MOSI_GPIO 120 - * #define SPI_SCK_GPIO 121 - * #define SPI_N_CHIPSEL 4 -+ * #undef NEED_SPIDELAY - * #include "spi_gpio.c" - */ - -@@ -76,6 +78,7 @@ struct spi_gpio { - #define DRIVER_NAME "spi_gpio" - - #define GENERIC_BITBANG /* vs tight inlines */ -+#define NEED_SPIDELAY 1 - - /* all functions referencing these symbols must define pdata */ - #define SPI_MISO_GPIO ((pdata)->miso) -@@ -120,12 +123,20 @@ static inline int getmiso(const struct s - #undef pdata - - /* -- * NOTE: this clocks "as fast as we can". It "should" be a function of the -- * requested device clock. Software overhead means we usually have trouble -- * reaching even one Mbit/sec (except when we can inline bitops), so for now -- * we'll just assume we never need additional per-bit slowdowns. -+ * NOTE: to clock "as fast as we can", set spi_device.max_speed_hz -+ * and spi_transfer.speed_hz to 0. -+ * Otherwise this is a function of the requested device clock. -+ * Software overhead means we usually have trouble -+ * reaching even one Mbit/sec (except when we can inline bitops). So on small -+ * embedded devices with fast SPI slaves you usually don't need a delay. - */ --#define spidelay(nsecs) do {} while (0) -+static inline void spidelay(unsigned nsecs) -+{ -+#ifdef NEED_SPIDELAY -+ if (unlikely(nsecs)) -+ ndelay(nsecs); -+#endif /* NEED_SPIDELAY */ -+} - - #include "spi_bitbang_txrx.h" - diff --git a/target/linux/generic/patches-2.6.39/920-unable_to_open_console.patch b/target/linux/generic/patches-2.6.39/920-unable_to_open_console.patch new file mode 100644 index 00000000000..27b90029366 --- /dev/null +++ b/target/linux/generic/patches-2.6.39/920-unable_to_open_console.patch @@ -0,0 +1,11 @@ +--- a/init/main.c ++++ b/init/main.c +@@ -802,7 +802,7 @@ static int __init kernel_init(void * unu + + /* Open the /dev/console on the rootfs, this should never fail */ + if (sys_open((const char __user *) "/dev/console", O_RDWR, 0) < 0) +- printk(KERN_WARNING "Warning: unable to open an initial console.\n"); ++ printk(KERN_WARNING "Please be patient, while OpenWrt loads ...\n"); + + (void) sys_dup(0); + (void) sys_dup(0); diff --git a/target/linux/generic/patches-2.6.39/921-gpio_spi_driver.patch b/target/linux/generic/patches-2.6.39/921-gpio_spi_driver.patch deleted file mode 100644 index 3ea9f9091cc..00000000000 --- a/target/linux/generic/patches-2.6.39/921-gpio_spi_driver.patch +++ /dev/null @@ -1,373 +0,0 @@ -THIS CODE IS DEPRECATED. - -Please use the new mainline SPI-GPIO driver, as of 2.6.29. - ---mb - - - ---- - drivers/spi/Kconfig | 9 + - drivers/spi/Makefile | 1 - drivers/spi/spi_gpio_old.c | 251 +++++++++++++++++++++++++++++++++++++++ - include/linux/spi/spi_gpio_old.h | 73 +++++++++++ - 4 files changed, 334 insertions(+) - ---- /dev/null -+++ b/include/linux/spi/spi_gpio_old.h -@@ -0,0 +1,73 @@ -+/* -+ * spi_gpio interface to platform code -+ * -+ * Copyright (c) 2008 Piotr Skamruk -+ * Copyright (c) 2008 Michael Buesch -+ * -+ * This program is free software; you can redistribute it and/or modify -+ * it under the terms of the GNU General Public License version 2 as -+ * published by the Free Software Foundation. -+ */ -+#ifndef _LINUX_SPI_SPI_GPIO -+#define _LINUX_SPI_SPI_GPIO -+ -+#include -+#include -+ -+ -+/** -+ * struct spi_gpio_platform_data - Data definitions for a SPI-GPIO device. -+ * -+ * This structure holds information about a GPIO-based SPI device. -+ * -+ * @pin_clk: The GPIO pin number of the CLOCK pin. -+ * -+ * @pin_miso: The GPIO pin number of the MISO pin. -+ * -+ * @pin_mosi: The GPIO pin number of the MOSI pin. -+ * -+ * @pin_cs: The GPIO pin number of the CHIPSELECT pin. -+ * -+ * @cs_activelow: If true, the chip is selected when the CS line is low. -+ * -+ * @no_spi_delay: If true, no delay is done in the lowlevel bitbanging. -+ * Note that doing no delay is not standards compliant, -+ * but it might be needed to speed up transfers on some -+ * slow embedded machines. -+ * -+ * @boardinfo_setup: This callback is called after the -+ * SPI master device was registered, but before the -+ * device is registered. -+ * @boardinfo_setup_data: Data argument passed to boardinfo_setup(). -+ */ -+struct spi_gpio_platform_data { -+ unsigned int pin_clk; -+ unsigned int pin_miso; -+ unsigned int pin_mosi; -+ unsigned int pin_cs; -+ bool cs_activelow; -+ bool no_spi_delay; -+ int (*boardinfo_setup)(struct spi_board_info *bi, -+ struct spi_master *master, -+ void *data); -+ void *boardinfo_setup_data; -+}; -+ -+/** -+ * SPI_GPIO_PLATDEV_NAME - The platform device name string. -+ * -+ * The name string that has to be used for platform_device_alloc -+ * when allocating a spi-gpio device. -+ */ -+#define SPI_GPIO_PLATDEV_NAME "spi-gpio" -+ -+/** -+ * spi_gpio_next_id - Get another platform device ID number. -+ * -+ * This returns the next platform device ID number that has to be used -+ * for platform_device_alloc. The ID is opaque and should not be used for -+ * anything else. -+ */ -+int spi_gpio_next_id(void); -+ -+#endif /* _LINUX_SPI_SPI_GPIO */ ---- /dev/null -+++ b/drivers/spi/spi_gpio_old.c -@@ -0,0 +1,251 @@ -+/* -+ * Bitbanging SPI bus driver using GPIO API -+ * -+ * Copyright (c) 2008 Piotr Skamruk -+ * Copyright (c) 2008 Michael Buesch -+ * -+ * based on spi_s3c2410_gpio.c -+ * Copyright (c) 2006 Ben Dooks -+ * Copyright (c) 2006 Simtec Electronics -+ * and on i2c-gpio.c -+ * Copyright (C) 2007 Atmel Corporation -+ * -+ * This program is free software; you can redistribute it and/or modify -+ * it under the terms of the GNU General Public License version 2 as -+ * published by the Free Software Foundation. -+ */ -+ -+#include -+#include -+#include -+#include -+#include -+#include -+#include -+#include -+#include -+#include -+#include -+#include -+ -+ -+struct spi_gpio { -+ struct spi_bitbang bitbang; -+ struct spi_gpio_platform_data *info; -+ struct platform_device *pdev; -+ struct spi_board_info bi; -+}; -+ -+ -+static inline struct spi_gpio *spidev_to_sg(struct spi_device *dev) -+{ -+ return dev->controller_data; -+} -+ -+static inline void setsck(struct spi_device *dev, int val) -+{ -+ struct spi_gpio *sp = spidev_to_sg(dev); -+ gpio_set_value(sp->info->pin_clk, val ? 1 : 0); -+} -+ -+static inline void setmosi(struct spi_device *dev, int val) -+{ -+ struct spi_gpio *sp = spidev_to_sg(dev); -+ gpio_set_value(sp->info->pin_mosi, val ? 1 : 0); -+} -+ -+static inline u32 getmiso(struct spi_device *dev) -+{ -+ struct spi_gpio *sp = spidev_to_sg(dev); -+ return gpio_get_value(sp->info->pin_miso) ? 1 : 0; -+} -+ -+static inline void do_spidelay(struct spi_device *dev, unsigned nsecs) -+{ -+ struct spi_gpio *sp = spidev_to_sg(dev); -+ -+ if (!sp->info->no_spi_delay) -+ ndelay(nsecs); -+} -+ -+#define spidelay(nsecs) do { \ -+ /* Steal the spi_device pointer from our caller. \ -+ * The bitbang-API should probably get fixed here... */ \ -+ do_spidelay(spi, nsecs); \ -+ } while (0) -+ -+#define EXPAND_BITBANG_TXRX -+#include "spi_bitbang_txrx.h" -+ -+static u32 spi_gpio_txrx_mode0(struct spi_device *spi, -+ unsigned nsecs, u32 word, u8 bits) -+{ -+ return bitbang_txrx_be_cpha0(spi, nsecs, 0, 0, word, bits); -+} -+ -+static u32 spi_gpio_txrx_mode1(struct spi_device *spi, -+ unsigned nsecs, u32 word, u8 bits) -+{ -+ return bitbang_txrx_be_cpha1(spi, nsecs, 0, 0, word, bits); -+} -+ -+static u32 spi_gpio_txrx_mode2(struct spi_device *spi, -+ unsigned nsecs, u32 word, u8 bits) -+{ -+ return bitbang_txrx_be_cpha0(spi, nsecs, 1, 0, word, bits); -+} -+ -+static u32 spi_gpio_txrx_mode3(struct spi_device *spi, -+ unsigned nsecs, u32 word, u8 bits) -+{ -+ return bitbang_txrx_be_cpha1(spi, nsecs, 1, 0, word, bits); -+} -+ -+static void spi_gpio_chipselect(struct spi_device *dev, int on) -+{ -+ struct spi_gpio *sp = spidev_to_sg(dev); -+ -+ if (sp->info->cs_activelow) -+ on = !on; -+ gpio_set_value(sp->info->pin_cs, on ? 1 : 0); -+} -+ -+static int spi_gpio_probe(struct platform_device *pdev) -+{ -+ struct spi_master *master; -+ struct spi_gpio_platform_data *pdata; -+ struct spi_gpio *sp; -+ struct spi_device *spidev; -+ int err; -+ -+ pdata = pdev->dev.platform_data; -+ if (!pdata) -+ return -ENXIO; -+ -+ err = -ENOMEM; -+ master = spi_alloc_master(&pdev->dev, sizeof(struct spi_gpio)); -+ if (!master) -+ goto err_alloc_master; -+ -+ sp = spi_master_get_devdata(master); -+ platform_set_drvdata(pdev, sp); -+ sp->info = pdata; -+ -+ err = gpio_request(pdata->pin_clk, "spi_clock"); -+ if (err) -+ goto err_request_clk; -+ err = gpio_request(pdata->pin_mosi, "spi_mosi"); -+ if (err) -+ goto err_request_mosi; -+ err = gpio_request(pdata->pin_miso, "spi_miso"); -+ if (err) -+ goto err_request_miso; -+ err = gpio_request(pdata->pin_cs, "spi_cs"); -+ if (err) -+ goto err_request_cs; -+ -+ sp->bitbang.master = spi_master_get(master); -+ sp->bitbang.master->bus_num = -1; -+ sp->bitbang.master->num_chipselect = 1; -+ sp->bitbang.chipselect = spi_gpio_chipselect; -+ sp->bitbang.txrx_word[SPI_MODE_0] = spi_gpio_txrx_mode0; -+ sp->bitbang.txrx_word[SPI_MODE_1] = spi_gpio_txrx_mode1; -+ sp->bitbang.txrx_word[SPI_MODE_2] = spi_gpio_txrx_mode2; -+ sp->bitbang.txrx_word[SPI_MODE_3] = spi_gpio_txrx_mode3; -+ -+ gpio_direction_output(pdata->pin_clk, 0); -+ gpio_direction_output(pdata->pin_mosi, 0); -+ gpio_direction_output(pdata->pin_cs, -+ pdata->cs_activelow ? 1 : 0); -+ gpio_direction_input(pdata->pin_miso); -+ -+ err = spi_bitbang_start(&sp->bitbang); -+ if (err) -+ goto err_no_bitbang; -+ err = pdata->boardinfo_setup(&sp->bi, master, -+ pdata->boardinfo_setup_data); -+ if (err) -+ goto err_bi_setup; -+ sp->bi.controller_data = sp; -+ spidev = spi_new_device(master, &sp->bi); -+ if (!spidev) -+ goto err_new_dev; -+ -+ return 0; -+ -+err_new_dev: -+err_bi_setup: -+ spi_bitbang_stop(&sp->bitbang); -+err_no_bitbang: -+ spi_master_put(sp->bitbang.master); -+ gpio_free(pdata->pin_cs); -+err_request_cs: -+ gpio_free(pdata->pin_miso); -+err_request_miso: -+ gpio_free(pdata->pin_mosi); -+err_request_mosi: -+ gpio_free(pdata->pin_clk); -+err_request_clk: -+ kfree(master); -+ -+err_alloc_master: -+ return err; -+} -+ -+static int __devexit spi_gpio_remove(struct platform_device *pdev) -+{ -+ struct spi_gpio *sp; -+ struct spi_gpio_platform_data *pdata; -+ -+ pdata = pdev->dev.platform_data; -+ sp = platform_get_drvdata(pdev); -+ -+ gpio_free(pdata->pin_clk); -+ gpio_free(pdata->pin_mosi); -+ gpio_free(pdata->pin_miso); -+ gpio_free(pdata->pin_cs); -+ spi_bitbang_stop(&sp->bitbang); -+ spi_master_put(sp->bitbang.master); -+ -+ return 0; -+} -+ -+static struct platform_driver spi_gpio_driver = { -+ .driver = { -+ .name = SPI_GPIO_PLATDEV_NAME, -+ .owner = THIS_MODULE, -+ }, -+ .probe = spi_gpio_probe, -+ .remove = __devexit_p(spi_gpio_remove), -+}; -+ -+int spi_gpio_next_id(void) -+{ -+ static atomic_t counter = ATOMIC_INIT(-1); -+ -+ return atomic_inc_return(&counter); -+} -+EXPORT_SYMBOL(spi_gpio_next_id); -+ -+static int __init spi_gpio_init(void) -+{ -+ int err; -+ -+ err = platform_driver_register(&spi_gpio_driver); -+ if (err) -+ printk(KERN_ERR "spi-gpio: register failed: %d\n", err); -+ -+ return err; -+} -+module_init(spi_gpio_init); -+ -+static void __exit spi_gpio_exit(void) -+{ -+ platform_driver_unregister(&spi_gpio_driver); -+} -+module_exit(spi_gpio_exit); -+ -+MODULE_AUTHOR("Piot Skamruk "); -+MODULE_AUTHOR("Michael Buesch"); -+MODULE_DESCRIPTION("Platform independent GPIO bitbanging SPI driver"); -+MODULE_LICENSE("GPL v2"); ---- a/drivers/spi/Kconfig -+++ b/drivers/spi/Kconfig -@@ -175,6 +175,15 @@ config SPI_IMX_VER_0_7 - config SPI_IMX_VER_2_3 - def_bool y if SOC_IMX51 || SOC_IMX53 - -+config SPI_GPIO_OLD -+ tristate "Old GPIO API based bitbanging SPI controller (DEPRECATED)" -+ depends on SPI_MASTER && GENERIC_GPIO -+ select SPI_BITBANG -+ help -+ This code is deprecated. Please use the new mainline SPI-GPIO driver. -+ -+ If unsure, say N. -+ - config SPI_IMX - tristate "Freescale i.MX SPI controllers" - depends on ARCH_MXC ---- a/drivers/spi/Makefile -+++ b/drivers/spi/Makefile -@@ -24,6 +24,7 @@ dw_spi_midpci-objs := dw_spi_pci.o dw_ - obj-$(CONFIG_SPI_DW_MMIO) += dw_spi_mmio.o - obj-$(CONFIG_SPI_EP93XX) += ep93xx_spi.o - obj-$(CONFIG_SPI_GPIO) += spi_gpio.o -+obj-$(CONFIG_SPI_GPIO_OLD) += spi_gpio_old.o - obj-$(CONFIG_SPI_IMX) += spi_imx.o - obj-$(CONFIG_SPI_LM70_LLP) += spi_lm70llp.o - obj-$(CONFIG_SPI_PXA2XX) += pxa2xx_spi.o diff --git a/target/linux/generic/patches-2.6.39/921-use_preinit_as_init.patch b/target/linux/generic/patches-2.6.39/921-use_preinit_as_init.patch new file mode 100644 index 00000000000..c47779810df --- /dev/null +++ b/target/linux/generic/patches-2.6.39/921-use_preinit_as_init.patch @@ -0,0 +1,14 @@ +--- a/init/main.c ++++ b/init/main.c +@@ -764,10 +764,7 @@ static noinline int init_post(void) + printk(KERN_WARNING "Failed to execute %s. Attempting " + "defaults...\n", execute_command); + } +- run_init_process("/sbin/init"); +- run_init_process("/etc/init"); +- run_init_process("/bin/init"); +- run_init_process("/bin/sh"); ++ run_init_process("/etc/preinit"); + + panic("No init found. Try passing init= option to kernel. " + "See Linux Documentation/init.txt for guidance."); diff --git a/target/linux/generic/patches-2.6.39/922-gpiommc.patch b/target/linux/generic/patches-2.6.39/922-gpiommc.patch deleted file mode 100644 index c10eaeed257..00000000000 --- a/target/linux/generic/patches-2.6.39/922-gpiommc.patch +++ /dev/null @@ -1,843 +0,0 @@ ---- /dev/null -+++ b/drivers/mmc/host/gpiommc.c -@@ -0,0 +1,608 @@ -+/* -+ * Driver an MMC/SD card on a bitbanging GPIO SPI bus. -+ * This module hooks up the mmc_spi and spi_gpio modules and also -+ * provides a configfs interface. -+ * -+ * Copyright 2008 Michael Buesch -+ * -+ * Licensed under the GNU/GPL. See COPYING for details. -+ */ -+ -+#include -+#include -+#include -+#include -+#include -+#include -+#include -+#include -+ -+ -+#define PFX "gpio-mmc: " -+ -+ -+struct gpiommc_device { -+ struct platform_device *pdev; -+ struct platform_device *spi_pdev; -+ struct spi_board_info boardinfo; -+}; -+ -+ -+MODULE_DESCRIPTION("GPIO based MMC driver"); -+MODULE_AUTHOR("Michael Buesch"); -+MODULE_LICENSE("GPL"); -+ -+ -+static int gpiommc_boardinfo_setup(struct spi_board_info *bi, -+ struct spi_master *master, -+ void *data) -+{ -+ struct gpiommc_device *d = data; -+ struct gpiommc_platform_data *pdata = d->pdev->dev.platform_data; -+ -+ /* Bind the SPI master to the MMC-SPI host driver. */ -+ strlcpy(bi->modalias, "mmc_spi", sizeof(bi->modalias)); -+ -+ bi->max_speed_hz = pdata->max_bus_speed; -+ bi->bus_num = master->bus_num; -+ bi->mode = pdata->mode; -+ -+ return 0; -+} -+ -+static int gpiommc_probe(struct platform_device *pdev) -+{ -+ struct gpiommc_platform_data *mmc_pdata = pdev->dev.platform_data; -+ struct spi_gpio_platform_data spi_pdata; -+ struct gpiommc_device *d; -+ int err; -+ -+ err = -ENXIO; -+ if (!mmc_pdata) -+ goto error; -+ -+#ifdef CONFIG_MMC_SPI_MODULE -+ err = request_module("mmc_spi"); -+ if (err) { -+ printk(KERN_WARNING PFX -+ "Failed to request mmc_spi module.\n"); -+ } -+#endif /* CONFIG_MMC_SPI_MODULE */ -+ -+ /* Allocate the GPIO-MMC device */ -+ err = -ENOMEM; -+ d = kzalloc(sizeof(*d), GFP_KERNEL); -+ if (!d) -+ goto error; -+ d->pdev = pdev; -+ -+ /* Create the SPI-GPIO device */ -+ d->spi_pdev = platform_device_alloc(SPI_GPIO_PLATDEV_NAME, -+ spi_gpio_next_id()); -+ if (!d->spi_pdev) -+ goto err_free_d; -+ -+ memset(&spi_pdata, 0, sizeof(spi_pdata)); -+ spi_pdata.pin_clk = mmc_pdata->pins.gpio_clk; -+ spi_pdata.pin_miso = mmc_pdata->pins.gpio_do; -+ spi_pdata.pin_mosi = mmc_pdata->pins.gpio_di; -+ spi_pdata.pin_cs = mmc_pdata->pins.gpio_cs; -+ spi_pdata.cs_activelow = mmc_pdata->pins.cs_activelow; -+ spi_pdata.no_spi_delay = mmc_pdata->no_spi_delay; -+ spi_pdata.boardinfo_setup = gpiommc_boardinfo_setup; -+ spi_pdata.boardinfo_setup_data = d; -+ -+ err = platform_device_add_data(d->spi_pdev, &spi_pdata, -+ sizeof(spi_pdata)); -+ if (err) -+ goto err_free_pdev; -+ err = platform_device_add(d->spi_pdev); -+ if (err) -+ goto err_free_pdata; -+ platform_set_drvdata(pdev, d); -+ -+ printk(KERN_INFO PFX "MMC-Card \"%s\" " -+ "attached to GPIO pins di=%u, do=%u, clk=%u, cs=%u\n", -+ mmc_pdata->name, mmc_pdata->pins.gpio_di, -+ mmc_pdata->pins.gpio_do, -+ mmc_pdata->pins.gpio_clk, -+ mmc_pdata->pins.gpio_cs); -+ -+ return 0; -+ -+err_free_pdata: -+ kfree(d->spi_pdev->dev.platform_data); -+ d->spi_pdev->dev.platform_data = NULL; -+err_free_pdev: -+ platform_device_put(d->spi_pdev); -+err_free_d: -+ kfree(d); -+error: -+ return err; -+} -+ -+static int gpiommc_remove(struct platform_device *pdev) -+{ -+ struct gpiommc_device *d = platform_get_drvdata(pdev); -+ struct gpiommc_platform_data *pdata = d->pdev->dev.platform_data; -+ -+ platform_device_unregister(d->spi_pdev); -+ printk(KERN_INFO PFX "GPIO based MMC-Card \"%s\" removed\n", -+ pdata->name); -+ platform_device_put(d->spi_pdev); -+ -+ return 0; -+} -+ -+#ifdef CONFIG_GPIOMMC_CONFIGFS -+ -+/* A device that was created through configfs */ -+struct gpiommc_configfs_device { -+ struct config_item item; -+ /* The platform device, after registration. */ -+ struct platform_device *pdev; -+ /* The configuration */ -+ struct gpiommc_platform_data pdata; -+}; -+ -+#define GPIO_INVALID -1 -+ -+static inline bool gpiommc_is_registered(struct gpiommc_configfs_device *dev) -+{ -+ return (dev->pdev != NULL); -+} -+ -+static inline struct gpiommc_configfs_device *ci_to_gpiommc(struct config_item *item) -+{ -+ return item ? container_of(item, struct gpiommc_configfs_device, item) : NULL; -+} -+ -+static struct configfs_attribute gpiommc_attr_DI = { -+ .ca_owner = THIS_MODULE, -+ .ca_name = "gpio_data_in", -+ .ca_mode = S_IRUGO | S_IWUSR, -+}; -+ -+static struct configfs_attribute gpiommc_attr_DO = { -+ .ca_owner = THIS_MODULE, -+ .ca_name = "gpio_data_out", -+ .ca_mode = S_IRUGO | S_IWUSR, -+}; -+ -+static struct configfs_attribute gpiommc_attr_CLK = { -+ .ca_owner = THIS_MODULE, -+ .ca_name = "gpio_clock", -+ .ca_mode = S_IRUGO | S_IWUSR, -+}; -+ -+static struct configfs_attribute gpiommc_attr_CS = { -+ .ca_owner = THIS_MODULE, -+ .ca_name = "gpio_chipselect", -+ .ca_mode = S_IRUGO | S_IWUSR, -+}; -+ -+static struct configfs_attribute gpiommc_attr_CS_activelow = { -+ .ca_owner = THIS_MODULE, -+ .ca_name = "gpio_chipselect_activelow", -+ .ca_mode = S_IRUGO | S_IWUSR, -+}; -+ -+static struct configfs_attribute gpiommc_attr_spimode = { -+ .ca_owner = THIS_MODULE, -+ .ca_name = "spi_mode", -+ .ca_mode = S_IRUGO | S_IWUSR, -+}; -+ -+static struct configfs_attribute gpiommc_attr_spidelay = { -+ .ca_owner = THIS_MODULE, -+ .ca_name = "spi_delay", -+ .ca_mode = S_IRUGO | S_IWUSR, -+}; -+ -+static struct configfs_attribute gpiommc_attr_max_bus_speed = { -+ .ca_owner = THIS_MODULE, -+ .ca_name = "max_bus_speed", -+ .ca_mode = S_IRUGO | S_IWUSR, -+}; -+ -+static struct configfs_attribute gpiommc_attr_register = { -+ .ca_owner = THIS_MODULE, -+ .ca_name = "register", -+ .ca_mode = S_IRUGO | S_IWUSR, -+}; -+ -+static struct configfs_attribute *gpiommc_config_attrs[] = { -+ &gpiommc_attr_DI, -+ &gpiommc_attr_DO, -+ &gpiommc_attr_CLK, -+ &gpiommc_attr_CS, -+ &gpiommc_attr_CS_activelow, -+ &gpiommc_attr_spimode, -+ &gpiommc_attr_spidelay, -+ &gpiommc_attr_max_bus_speed, -+ &gpiommc_attr_register, -+ NULL, -+}; -+ -+static ssize_t gpiommc_config_attr_show(struct config_item *item, -+ struct configfs_attribute *attr, -+ char *page) -+{ -+ struct gpiommc_configfs_device *dev = ci_to_gpiommc(item); -+ ssize_t count = 0; -+ unsigned int gpio; -+ int err = 0; -+ -+ if (attr == &gpiommc_attr_DI) { -+ gpio = dev->pdata.pins.gpio_di; -+ if (gpio == GPIO_INVALID) -+ count = snprintf(page, PAGE_SIZE, "not configured\n"); -+ else -+ count = snprintf(page, PAGE_SIZE, "%u\n", gpio); -+ goto out; -+ } -+ if (attr == &gpiommc_attr_DO) { -+ gpio = dev->pdata.pins.gpio_do; -+ if (gpio == GPIO_INVALID) -+ count = snprintf(page, PAGE_SIZE, "not configured\n"); -+ else -+ count = snprintf(page, PAGE_SIZE, "%u\n", gpio); -+ goto out; -+ } -+ if (attr == &gpiommc_attr_CLK) { -+ gpio = dev->pdata.pins.gpio_clk; -+ if (gpio == GPIO_INVALID) -+ count = snprintf(page, PAGE_SIZE, "not configured\n"); -+ else -+ count = snprintf(page, PAGE_SIZE, "%u\n", gpio); -+ goto out; -+ } -+ if (attr == &gpiommc_attr_CS) { -+ gpio = dev->pdata.pins.gpio_cs; -+ if (gpio == GPIO_INVALID) -+ count = snprintf(page, PAGE_SIZE, "not configured\n"); -+ else -+ count = snprintf(page, PAGE_SIZE, "%u\n", gpio); -+ goto out; -+ } -+ if (attr == &gpiommc_attr_CS_activelow) { -+ count = snprintf(page, PAGE_SIZE, "%u\n", -+ dev->pdata.pins.cs_activelow); -+ goto out; -+ } -+ if (attr == &gpiommc_attr_spimode) { -+ count = snprintf(page, PAGE_SIZE, "%u\n", -+ dev->pdata.mode); -+ goto out; -+ } -+ if (attr == &gpiommc_attr_spidelay) { -+ count = snprintf(page, PAGE_SIZE, "%u\n", -+ !dev->pdata.no_spi_delay); -+ goto out; -+ } -+ if (attr == &gpiommc_attr_max_bus_speed) { -+ count = snprintf(page, PAGE_SIZE, "%u\n", -+ dev->pdata.max_bus_speed); -+ goto out; -+ } -+ if (attr == &gpiommc_attr_register) { -+ count = snprintf(page, PAGE_SIZE, "%u\n", -+ gpiommc_is_registered(dev)); -+ goto out; -+ } -+ WARN_ON(1); -+ err = -ENOSYS; -+out: -+ return err ? err : count; -+} -+ -+static int gpiommc_do_register(struct gpiommc_configfs_device *dev, -+ const char *name) -+{ -+ int err; -+ -+ if (gpiommc_is_registered(dev)) -+ return 0; -+ -+ if (!gpio_is_valid(dev->pdata.pins.gpio_di) || -+ !gpio_is_valid(dev->pdata.pins.gpio_do) || -+ !gpio_is_valid(dev->pdata.pins.gpio_clk) || -+ !gpio_is_valid(dev->pdata.pins.gpio_cs)) { -+ printk(KERN_ERR PFX -+ "configfs: Invalid GPIO pin number(s)\n"); -+ return -EINVAL; -+ } -+ -+ strlcpy(dev->pdata.name, name, -+ sizeof(dev->pdata.name)); -+ -+ dev->pdev = platform_device_alloc(GPIOMMC_PLATDEV_NAME, -+ gpiommc_next_id()); -+ if (!dev->pdev) -+ return -ENOMEM; -+ err = platform_device_add_data(dev->pdev, &dev->pdata, -+ sizeof(dev->pdata)); -+ if (err) { -+ platform_device_put(dev->pdev); -+ return err; -+ } -+ err = platform_device_add(dev->pdev); -+ if (err) { -+ platform_device_put(dev->pdev); -+ return err; -+ } -+ -+ return 0; -+} -+ -+static void gpiommc_do_unregister(struct gpiommc_configfs_device *dev) -+{ -+ if (!gpiommc_is_registered(dev)) -+ return; -+ -+ platform_device_unregister(dev->pdev); -+ dev->pdev = NULL; -+} -+ -+static ssize_t gpiommc_config_attr_store(struct config_item *item, -+ struct configfs_attribute *attr, -+ const char *page, size_t count) -+{ -+ struct gpiommc_configfs_device *dev = ci_to_gpiommc(item); -+ int err = -EINVAL; -+ unsigned long data; -+ -+ if (attr == &gpiommc_attr_register) { -+ err = strict_strtoul(page, 10, &data); -+ if (err) -+ goto out; -+ err = -EINVAL; -+ if (data == 1) -+ err = gpiommc_do_register(dev, item->ci_name); -+ if (data == 0) { -+ gpiommc_do_unregister(dev); -+ err = 0; -+ } -+ goto out; -+ } -+ -+ if (gpiommc_is_registered(dev)) { -+ /* The rest of the config parameters can only be set -+ * as long as the device is not registered, yet. */ -+ err = -EBUSY; -+ goto out; -+ } -+ -+ if (attr == &gpiommc_attr_DI) { -+ err = strict_strtoul(page, 10, &data); -+ if (err) -+ goto out; -+ err = -EINVAL; -+ if (!gpio_is_valid(data)) -+ goto out; -+ dev->pdata.pins.gpio_di = data; -+ err = 0; -+ goto out; -+ } -+ if (attr == &gpiommc_attr_DO) { -+ err = strict_strtoul(page, 10, &data); -+ if (err) -+ goto out; -+ err = -EINVAL; -+ if (!gpio_is_valid(data)) -+ goto out; -+ dev->pdata.pins.gpio_do = data; -+ err = 0; -+ goto out; -+ } -+ if (attr == &gpiommc_attr_CLK) { -+ err = strict_strtoul(page, 10, &data); -+ if (err) -+ goto out; -+ err = -EINVAL; -+ if (!gpio_is_valid(data)) -+ goto out; -+ dev->pdata.pins.gpio_clk = data; -+ err = 0; -+ goto out; -+ } -+ if (attr == &gpiommc_attr_CS) { -+ err = strict_strtoul(page, 10, &data); -+ if (err) -+ goto out; -+ err = -EINVAL; -+ if (!gpio_is_valid(data)) -+ goto out; -+ dev->pdata.pins.gpio_cs = data; -+ err = 0; -+ goto out; -+ } -+ if (attr == &gpiommc_attr_CS_activelow) { -+ err = strict_strtoul(page, 10, &data); -+ if (err) -+ goto out; -+ err = -EINVAL; -+ if (data != 0 && data != 1) -+ goto out; -+ dev->pdata.pins.cs_activelow = data; -+ err = 0; -+ goto out; -+ } -+ if (attr == &gpiommc_attr_spimode) { -+ err = strict_strtoul(page, 10, &data); -+ if (err) -+ goto out; -+ err = -EINVAL; -+ switch (data) { -+ case 0: -+ dev->pdata.mode = SPI_MODE_0; -+ break; -+ case 1: -+ dev->pdata.mode = SPI_MODE_1; -+ break; -+ case 2: -+ dev->pdata.mode = SPI_MODE_2; -+ break; -+ case 3: -+ dev->pdata.mode = SPI_MODE_3; -+ break; -+ default: -+ goto out; -+ } -+ err = 0; -+ goto out; -+ } -+ if (attr == &gpiommc_attr_spidelay) { -+ err = strict_strtoul(page, 10, &data); -+ if (err) -+ goto out; -+ err = -EINVAL; -+ if (data != 0 && data != 1) -+ goto out; -+ dev->pdata.no_spi_delay = !data; -+ err = 0; -+ goto out; -+ } -+ if (attr == &gpiommc_attr_max_bus_speed) { -+ err = strict_strtoul(page, 10, &data); -+ if (err) -+ goto out; -+ err = -EINVAL; -+ if (data > UINT_MAX) -+ goto out; -+ dev->pdata.max_bus_speed = data; -+ err = 0; -+ goto out; -+ } -+ WARN_ON(1); -+ err = -ENOSYS; -+out: -+ return err ? err : count; -+} -+ -+static void gpiommc_config_item_release(struct config_item *item) -+{ -+ struct gpiommc_configfs_device *dev = ci_to_gpiommc(item); -+ -+ kfree(dev); -+} -+ -+static struct configfs_item_operations gpiommc_config_item_ops = { -+ .release = gpiommc_config_item_release, -+ .show_attribute = gpiommc_config_attr_show, -+ .store_attribute = gpiommc_config_attr_store, -+}; -+ -+static struct config_item_type gpiommc_dev_ci_type = { -+ .ct_item_ops = &gpiommc_config_item_ops, -+ .ct_attrs = gpiommc_config_attrs, -+ .ct_owner = THIS_MODULE, -+}; -+ -+static struct config_item *gpiommc_make_item(struct config_group *group, -+ const char *name) -+{ -+ struct gpiommc_configfs_device *dev; -+ -+ if (strlen(name) > GPIOMMC_MAX_NAMELEN) { -+ printk(KERN_ERR PFX "configfs: device name too long\n"); -+ return NULL; -+ } -+ -+ dev = kzalloc(sizeof(*dev), GFP_KERNEL); -+ if (!dev) -+ return NULL; -+ -+ config_item_init_type_name(&dev->item, name, -+ &gpiommc_dev_ci_type); -+ -+ /* Assign default configuration */ -+ dev->pdata.pins.gpio_di = GPIO_INVALID; -+ dev->pdata.pins.gpio_do = GPIO_INVALID; -+ dev->pdata.pins.gpio_clk = GPIO_INVALID; -+ dev->pdata.pins.gpio_cs = GPIO_INVALID; -+ dev->pdata.pins.cs_activelow = 1; -+ dev->pdata.mode = SPI_MODE_0; -+ dev->pdata.no_spi_delay = 0; -+ dev->pdata.max_bus_speed = 5000000; /* 5 MHz */ -+ -+ return &(dev->item); -+} -+ -+static void gpiommc_drop_item(struct config_group *group, -+ struct config_item *item) -+{ -+ struct gpiommc_configfs_device *dev = ci_to_gpiommc(item); -+ -+ gpiommc_do_unregister(dev); -+ kfree(dev); -+} -+ -+static struct configfs_group_operations gpiommc_ct_group_ops = { -+ .make_item = gpiommc_make_item, -+ .drop_item = gpiommc_drop_item, -+}; -+ -+static struct config_item_type gpiommc_ci_type = { -+ .ct_group_ops = &gpiommc_ct_group_ops, -+ .ct_owner = THIS_MODULE, -+}; -+ -+static struct configfs_subsystem gpiommc_subsys = { -+ .su_group = { -+ .cg_item = { -+ .ci_namebuf = GPIOMMC_PLATDEV_NAME, -+ .ci_type = &gpiommc_ci_type, -+ }, -+ }, -+ .su_mutex = __MUTEX_INITIALIZER(gpiommc_subsys.su_mutex), -+}; -+ -+#endif /* CONFIG_GPIOMMC_CONFIGFS */ -+ -+static struct platform_driver gpiommc_plat_driver = { -+ .probe = gpiommc_probe, -+ .remove = gpiommc_remove, -+ .driver = { -+ .name = GPIOMMC_PLATDEV_NAME, -+ .owner = THIS_MODULE, -+ }, -+}; -+ -+int gpiommc_next_id(void) -+{ -+ static atomic_t counter = ATOMIC_INIT(-1); -+ -+ return atomic_inc_return(&counter); -+} -+EXPORT_SYMBOL(gpiommc_next_id); -+ -+static int __init gpiommc_modinit(void) -+{ -+ int err; -+ -+ err = platform_driver_register(&gpiommc_plat_driver); -+ if (err) -+ return err; -+ -+#ifdef CONFIG_GPIOMMC_CONFIGFS -+ config_group_init(&gpiommc_subsys.su_group); -+ err = configfs_register_subsystem(&gpiommc_subsys); -+ if (err) { -+ platform_driver_unregister(&gpiommc_plat_driver); -+ return err; -+ } -+#endif /* CONFIG_GPIOMMC_CONFIGFS */ -+ -+ return 0; -+} -+module_init(gpiommc_modinit); -+ -+static void __exit gpiommc_modexit(void) -+{ -+#ifdef CONFIG_GPIOMMC_CONFIGFS -+ configfs_unregister_subsystem(&gpiommc_subsys); -+#endif -+ platform_driver_unregister(&gpiommc_plat_driver); -+} -+module_exit(gpiommc_modexit); ---- a/drivers/mmc/host/Kconfig -+++ b/drivers/mmc/host/Kconfig -@@ -458,6 +458,31 @@ config MMC_SDHI - This provides support for the SDHI SD/SDIO controller found in - SuperH and ARM SH-Mobile SoCs - -+config GPIOMMC -+ tristate "MMC/SD over GPIO-based SPI" -+ depends on MMC && MMC_SPI && SPI_GPIO_OLD -+ help -+ This driver hooks up the mmc_spi and spi_gpio modules so that -+ MMC/SD cards can be used on a GPIO based bus by bitbanging -+ the SPI protocol in software. -+ -+ This driver provides a configfs interface to dynamically create -+ and destroy GPIO-based MMC/SD card devices. It also provides -+ a platform device interface API. -+ See Documentation/gpiommc.txt for details. -+ -+ The module will be called gpiommc. -+ -+ If unsure, say N. -+ -+config GPIOMMC_CONFIGFS -+ bool -+ depends on GPIOMMC && CONFIGFS_FS -+ default y -+ help -+ This option automatically enables configfs support for gpiommc -+ if configfs is available. -+ - config MMC_CB710 - tristate "ENE CB710 MMC/SD Interface support" - depends on PCI ---- a/drivers/mmc/host/Makefile -+++ b/drivers/mmc/host/Makefile -@@ -37,6 +37,7 @@ endif - obj-$(CONFIG_MMC_SDHI) += sh_mobile_sdhi.o - obj-$(CONFIG_MMC_CB710) += cb710-mmc.o - obj-$(CONFIG_MMC_VIA_SDMMC) += via-sdmmc.o -+obj-$(CONFIG_GPIOMMC) += gpiommc.o - obj-$(CONFIG_SDH_BFIN) += bfin_sdh.o - obj-$(CONFIG_MMC_DW) += dw_mmc.o - obj-$(CONFIG_MMC_SH_MMCIF) += sh_mmcif.o ---- /dev/null -+++ b/include/linux/mmc/gpiommc.h -@@ -0,0 +1,71 @@ -+/* -+ * Device driver for MMC/SD cards driven over a GPIO bus. -+ * -+ * Copyright (c) 2008 Michael Buesch -+ * -+ * Licensed under the GNU/GPL version 2. -+ */ -+#ifndef LINUX_GPIOMMC_H_ -+#define LINUX_GPIOMMC_H_ -+ -+#include -+ -+ -+#define GPIOMMC_MAX_NAMELEN 15 -+#define GPIOMMC_MAX_NAMELEN_STR __stringify(GPIOMMC_MAX_NAMELEN) -+ -+/** -+ * struct gpiommc_pins - Hardware pin assignments -+ * -+ * @gpio_di: The GPIO number of the DATA IN pin -+ * @gpio_do: The GPIO number of the DATA OUT pin -+ * @gpio_clk: The GPIO number of the CLOCK pin -+ * @gpio_cs: The GPIO number of the CHIPSELECT pin -+ * @cs_activelow: If true, the chip is considered selected if @gpio_cs is low. -+ */ -+struct gpiommc_pins { -+ unsigned int gpio_di; -+ unsigned int gpio_do; -+ unsigned int gpio_clk; -+ unsigned int gpio_cs; -+ bool cs_activelow; -+}; -+ -+/** -+ * struct gpiommc_platform_data - Platform data for a MMC-over-SPI-GPIO device. -+ * -+ * @name: The unique name string of the device. -+ * @pins: The hardware pin assignments. -+ * @mode: The hardware mode. This is either SPI_MODE_0, -+ * SPI_MODE_1, SPI_MODE_2 or SPI_MODE_3. See the SPI documentation. -+ * @no_spi_delay: Do not use delays in the lowlevel SPI bitbanging code. -+ * This is not standards compliant, but may be required for some -+ * embedded machines to gain reasonable speed. -+ * @max_bus_speed: The maximum speed of the SPI bus, in Hertz. -+ */ -+struct gpiommc_platform_data { -+ char name[GPIOMMC_MAX_NAMELEN + 1]; -+ struct gpiommc_pins pins; -+ u8 mode; -+ bool no_spi_delay; -+ unsigned int max_bus_speed; -+}; -+ -+/** -+ * GPIOMMC_PLATDEV_NAME - The platform device name string. -+ * -+ * The name string that has to be used for platform_device_alloc -+ * when allocating a gpiommc device. -+ */ -+#define GPIOMMC_PLATDEV_NAME "gpiommc" -+ -+/** -+ * gpiommc_next_id - Get another platform device ID number. -+ * -+ * This returns the next platform device ID number that has to be used -+ * for platform_device_alloc. The ID is opaque and should not be used for -+ * anything else. -+ */ -+int gpiommc_next_id(void); -+ -+#endif /* LINUX_GPIOMMC_H_ */ ---- /dev/null -+++ b/Documentation/gpiommc.txt -@@ -0,0 +1,97 @@ -+GPIOMMC - Driver for an MMC/SD card on a bitbanging GPIO SPI bus -+================================================================ -+ -+The gpiommc module hooks up the mmc_spi and spi_gpio modules for running an -+MMC or SD card on GPIO pins. -+ -+Two interfaces for registering a new MMC/SD card device are provided: -+A static platform-device based mechanism and a dynamic configfs based interface. -+ -+ -+Registering devices via platform-device -+======================================= -+ -+The platform-device interface is used for registering MMC/SD devices that are -+part of the hardware platform. This is most useful only for embedded machines -+with MMC/SD devices statically connected to the platform GPIO bus. -+ -+The data structures are declared in . -+ -+To register a new device, define an instance of struct gpiommc_platform_data. -+This structure holds any information about how the device is hooked up to the -+GPIO pins and what hardware modes the device supports. See the docbook-style -+documentation in the header file for more information on the struct fields. -+ -+Then allocate a new instance of a platform device by doing: -+ -+ pdev = platform_device_alloc(GPIOMMC_PLATDEV_NAME, gpiommc_next_id()); -+ -+This will allocate the platform device data structures and hook it up to the -+gpiommc driver. -+Then add the gpiommc_platform_data to the platform device. -+ -+ err = platform_device_add_data(pdev, pdata, sizeof(struct gpiommc_platform_data)); -+ -+You may free the local instance of struct gpiommc_platform_data now. (So the -+struct may be allocated on the stack, too). -+Now simply register the platform device. -+ -+ err = platform_device_add(pdev); -+ -+Done. The gpiommc probe routine will be invoked now and you should see a kernel -+log message for the added device. -+ -+ -+Registering devices via configfs -+================================ -+ -+MMC/SD cards connected via GPIO often are a pretty dynamic thing, as for example -+selfmade hacks for soldering an MMC/SD card to standard GPIO pins on embedded -+hardware are a common situation. -+So we provide a dynamic interface to conveniently handle adding and removing -+devices from userspace, without the need to recompile the kernel. -+ -+The "gpiommc" subdirectory at the configfs mountpoint is used for handling -+the dynamic configuration. -+ -+To create a new device, it must first be allocated with mkdir. -+The following command will allocate a device named "my_mmc": -+ mkdir /config/gpiommc/my_mmc -+ -+There are several configuration files available in the new -+/config/gpiommc/my_mmc/ directory: -+ -+gpio_data_in = The SPI data-IN GPIO pin number. -+gpio_data_out = The SPI data-OUT GPIO pin number. -+gpio_clock = The SPI Clock GPIO pin number. -+gpio_chipselect = The SPI Chipselect GPIO pin number. -+gpio_chipselect_activelow = Boolean. If 0, Chipselect is active-HIGH. -+ If 1, Chipselect is active-LOW. -+spi_mode = The SPI data mode. Can be 0-3. -+spi_delay = Enable all delays in the lowlevel bitbanging. -+max_bus_speed = The maximum SPI bus speed. In Hertz. -+ -+register = Not a configuration parameter. -+ Used to register the configured card -+ with the kernel. -+ -+The device must first get configured and then registered by writing "1" to -+the "register" file. -+The configuration parameters "gpio_data_in", "gpio_data_out", "gpio_clock" -+and "gpio_chipselect" are essential and _must_ be configured before writing -+"1" to the "register" file. The registration will fail, otherwise. -+ -+The default values for the other parameters are: -+gpio_chipselect_activelow = 1 (CS active-LOW) -+spi_mode = 0 (SPI_MODE_0) -+spi_delay = 1 (enabled) -+max_bus_speed = 5000000 (5 Mhz) -+ -+Configuration values can not be changed after registration. To unregister -+the device, write a "0" to the "register" file. The configuration can be -+changed again after unregistering. -+ -+To completely remove the device, simply rmdir the directory -+(/config/gpiommc/my_mmc in this example). -+There's no need to first unregister the device before removing it. That will -+be done automatically. ---- a/MAINTAINERS -+++ b/MAINTAINERS -@@ -2888,6 +2888,11 @@ T: git git://git.kernel.org/pub/scm/linu - S: Maintained - F: drivers/media/video/gspca/ - -+GPIOMMC DRIVER -+P: Michael Buesch -+M: mb@bu3sch.de -+S: Maintained -+ - HARDWARE MONITORING - M: Jean Delvare - M: Guenter Roeck diff --git a/target/linux/generic/patches-2.6.39/923-gpiommc-configfs-locking.patch b/target/linux/generic/patches-2.6.39/923-gpiommc-configfs-locking.patch deleted file mode 100644 index 2e4e820b2be..00000000000 --- a/target/linux/generic/patches-2.6.39/923-gpiommc-configfs-locking.patch +++ /dev/null @@ -1,58 +0,0 @@ -The gpiommc configfs context structure needs locking, as configfs -does not lock access between files. - ---- a/drivers/mmc/host/gpiommc.c -+++ b/drivers/mmc/host/gpiommc.c -@@ -143,6 +143,8 @@ struct gpiommc_configfs_device { - struct platform_device *pdev; - /* The configuration */ - struct gpiommc_platform_data pdata; -+ /* Mutex to protect this structure */ -+ struct mutex mutex; - }; - - #define GPIO_INVALID -1 -@@ -233,6 +235,8 @@ static ssize_t gpiommc_config_attr_show( - unsigned int gpio; - int err = 0; - -+ mutex_lock(&dev->mutex); -+ - if (attr == &gpiommc_attr_DI) { - gpio = dev->pdata.pins.gpio_di; - if (gpio == GPIO_INVALID) -@@ -293,6 +297,8 @@ static ssize_t gpiommc_config_attr_show( - WARN_ON(1); - err = -ENOSYS; - out: -+ mutex_unlock(&dev->mutex); -+ - return err ? err : count; - } - -@@ -352,6 +358,8 @@ static ssize_t gpiommc_config_attr_store - int err = -EINVAL; - unsigned long data; - -+ mutex_lock(&dev->mutex); -+ - if (attr == &gpiommc_attr_register) { - err = strict_strtoul(page, 10, &data); - if (err) -@@ -477,6 +485,8 @@ static ssize_t gpiommc_config_attr_store - WARN_ON(1); - err = -ENOSYS; - out: -+ mutex_unlock(&dev->mutex); -+ - return err ? err : count; - } - -@@ -513,6 +523,7 @@ static struct config_item *gpiommc_make_ - if (!dev) - return NULL; - -+ mutex_init(&dev->mutex); - config_item_init_type_name(&dev->item, name, - &gpiommc_dev_ci_type); - diff --git a/target/linux/generic/patches-2.6.39/940-ocf_kbuild_integration.patch b/target/linux/generic/patches-2.6.39/940-ocf_kbuild_integration.patch new file mode 100644 index 00000000000..3c322f3d140 --- /dev/null +++ b/target/linux/generic/patches-2.6.39/940-ocf_kbuild_integration.patch @@ -0,0 +1,20 @@ +--- a/crypto/Kconfig ++++ b/crypto/Kconfig +@@ -866,3 +866,6 @@ config CRYPTO_USER_API_SKCIPHER + source "drivers/crypto/Kconfig" + + endif # if CRYPTO ++ ++source "crypto/ocf/Kconfig" ++ +--- a/crypto/Makefile ++++ b/crypto/Makefile +@@ -89,6 +89,8 @@ obj-$(CONFIG_CRYPTO_USER_API) += af_alg. + obj-$(CONFIG_CRYPTO_USER_API_HASH) += algif_hash.o + obj-$(CONFIG_CRYPTO_USER_API_SKCIPHER) += algif_skcipher.o + ++obj-$(CONFIG_OCF_OCF) += ocf/ ++ + # + # generic algorithms and the async_tx api + # diff --git a/target/linux/generic/patches-2.6.39/940-wireless_mesh_header.patch b/target/linux/generic/patches-2.6.39/940-wireless_mesh_header.patch deleted file mode 100644 index 48c4c2a153e..00000000000 --- a/target/linux/generic/patches-2.6.39/940-wireless_mesh_header.patch +++ /dev/null @@ -1,11 +0,0 @@ ---- a/include/linux/netdevice.h -+++ b/include/linux/netdevice.h -@@ -148,7 +148,7 @@ static inline bool dev_xmit_complete(int - */ - - #if defined(CONFIG_WLAN) || defined(CONFIG_AX25) || defined(CONFIG_AX25_MODULE) --# if defined(CONFIG_MAC80211_MESH) -+# if 1 || defined(CONFIG_MAC80211_MESH) - # define LL_MAX_HEADER 128 - # else - # define LL_MAX_HEADER 96 diff --git a/target/linux/generic/patches-2.6.39/941-ocf_20100325.patch b/target/linux/generic/patches-2.6.39/941-ocf_20100325.patch new file mode 100644 index 00000000000..537f9ed3745 --- /dev/null +++ b/target/linux/generic/patches-2.6.39/941-ocf_20100325.patch @@ -0,0 +1,170 @@ +--- a/drivers/char/random.c ++++ b/drivers/char/random.c +@@ -130,6 +130,9 @@ + * void add_interrupt_randomness(int irq); + * void add_disk_randomness(struct gendisk *disk); + * ++ * void random_input_words(__u32 *buf, size_t wordcount, int ent_count) ++ * int random_input_wait(void); ++ * + * add_input_randomness() uses the input layer interrupt timing, as well as + * the event type information from the hardware. + * +@@ -147,6 +150,13 @@ + * seek times do not make for good sources of entropy, as their seek + * times are usually fairly consistent. + * ++ * random_input_words() just provides a raw block of entropy to the input ++ * pool, such as from a hardware entropy generator. ++ * ++ * random_input_wait() suspends the caller until such time as the ++ * entropy pool falls below the write threshold, and returns a count of how ++ * much entropy (in bits) is needed to sustain the pool. ++ * + * All of these routines try to estimate how many bits of randomness a + * particular randomness source. They do this by keeping track of the + * first and second order deltas of the event timings. +@@ -722,6 +732,61 @@ void add_disk_randomness(struct gendisk + } + #endif + ++/* ++ * random_input_words - add bulk entropy to pool ++ * ++ * @buf: buffer to add ++ * @wordcount: number of __u32 words to add ++ * @ent_count: total amount of entropy (in bits) to credit ++ * ++ * this provides bulk input of entropy to the input pool ++ * ++ */ ++void random_input_words(__u32 *buf, size_t wordcount, int ent_count) ++{ ++ mix_pool_bytes(&input_pool, buf, wordcount*4); ++ ++ credit_entropy_bits(&input_pool, ent_count); ++ ++ DEBUG_ENT("crediting %d bits => %d\n", ++ ent_count, input_pool.entropy_count); ++ /* ++ * Wake up waiting processes if we have enough ++ * entropy. ++ */ ++ if (input_pool.entropy_count >= random_read_wakeup_thresh) ++ wake_up_interruptible(&random_read_wait); ++} ++EXPORT_SYMBOL(random_input_words); ++ ++/* ++ * random_input_wait - wait until random needs entropy ++ * ++ * this function sleeps until the /dev/random subsystem actually ++ * needs more entropy, and then return the amount of entropy ++ * that it would be nice to have added to the system. ++ */ ++int random_input_wait(void) ++{ ++ int count; ++ ++ wait_event_interruptible(random_write_wait, ++ input_pool.entropy_count < random_write_wakeup_thresh); ++ ++ count = random_write_wakeup_thresh - input_pool.entropy_count; ++ ++ /* likely we got woken up due to a signal */ ++ if (count <= 0) count = random_read_wakeup_thresh; ++ ++ DEBUG_ENT("requesting %d bits from input_wait()er %d<%d\n", ++ count, ++ input_pool.entropy_count, random_write_wakeup_thresh); ++ ++ return count; ++} ++EXPORT_SYMBOL(random_input_wait); ++ ++ + /********************************************************************* + * + * Entropy extraction routines +--- a/fs/fcntl.c ++++ b/fs/fcntl.c +@@ -142,6 +142,7 @@ SYSCALL_DEFINE1(dup, unsigned int, filde + } + return ret; + } ++EXPORT_SYMBOL(sys_dup); + + #define SETFL_MASK (O_APPEND | O_NONBLOCK | O_NDELAY | O_DIRECT | O_NOATIME) + +--- a/include/linux/miscdevice.h ++++ b/include/linux/miscdevice.h +@@ -18,6 +18,7 @@ + #define APOLLO_MOUSE_MINOR 7 + #define PC110PAD_MINOR 9 + /*#define ADB_MOUSE_MINOR 10 FIXME OBSOLETE */ ++#define CRYPTODEV_MINOR 70 /* /dev/crypto */ + #define WATCHDOG_MINOR 130 /* Watchdog timer */ + #define TEMP_MINOR 131 /* Temperature Sensor */ + #define RTC_MINOR 135 +--- a/include/linux/random.h ++++ b/include/linux/random.h +@@ -9,6 +9,7 @@ + + #include + #include ++#include /* for __u32 in user space */ + #include + + /* ioctl()'s for the random number generator */ +@@ -34,6 +35,30 @@ + /* Clear the entropy pool and associated counters. (Superuser only.) */ + #define RNDCLEARPOOL _IO( 'R', 0x06 ) + ++#ifdef CONFIG_FIPS_RNG ++ ++/* Size of seed value - equal to AES blocksize */ ++#define AES_BLOCK_SIZE_BYTES 16 ++#define SEED_SIZE_BYTES AES_BLOCK_SIZE_BYTES ++/* Size of AES key */ ++#define KEY_SIZE_BYTES 16 ++ ++/* ioctl() structure used by FIPS 140-2 Tests */ ++struct rand_fips_test { ++ unsigned char key[KEY_SIZE_BYTES]; /* Input */ ++ unsigned char datetime[SEED_SIZE_BYTES]; /* Input */ ++ unsigned char seed[SEED_SIZE_BYTES]; /* Input */ ++ unsigned char result[SEED_SIZE_BYTES]; /* Output */ ++}; ++ ++/* FIPS 140-2 RNG Variable Seed Test. (Superuser only.) */ ++#define RNDFIPSVST _IOWR('R', 0x10, struct rand_fips_test) ++ ++/* FIPS 140-2 RNG Monte Carlo Test. (Superuser only.) */ ++#define RNDFIPSMCT _IOWR('R', 0x11, struct rand_fips_test) ++ ++#endif /* #ifdef CONFIG_FIPS_RNG */ ++ + struct rand_pool_info { + int entropy_count; + int buf_size; +@@ -54,6 +79,10 @@ extern void add_input_randomness(unsigne + unsigned int value); + extern void add_interrupt_randomness(int irq); + ++extern void random_input_words(__u32 *buf, size_t wordcount, int ent_count); ++extern int random_input_wait(void); ++#define HAS_RANDOM_INPUT_WAIT 1 ++ + extern void get_random_bytes(void *buf, int nbytes); + void generate_random_uuid(unsigned char uuid_out[16]); + +--- a/kernel/pid.c ++++ b/kernel/pid.c +@@ -424,6 +424,7 @@ struct task_struct *find_task_by_vpid(pi + { + return find_task_by_pid_ns(vnr, current->nsproxy->pid_ns); + } ++EXPORT_SYMBOL(find_task_by_vpid); + + struct pid *get_task_pid(struct task_struct *task, enum pid_type type) + { diff --git a/target/linux/generic/patches-2.6.39/950-powerpc_crtsavres_prereq.patch b/target/linux/generic/patches-2.6.39/950-powerpc_crtsavres_prereq.patch deleted file mode 100644 index e1a141b4fe2..00000000000 --- a/target/linux/generic/patches-2.6.39/950-powerpc_crtsavres_prereq.patch +++ /dev/null @@ -1,56 +0,0 @@ ---- a/Makefile -+++ b/Makefile -@@ -366,6 +366,7 @@ KBUILD_AFLAGS := -D__ASSEMBLY__ - KBUILD_AFLAGS_MODULE := -DMODULE - KBUILD_CFLAGS_MODULE := -DMODULE - KBUILD_LDFLAGS_MODULE := -T $(srctree)/scripts/module-common.lds -+KBUILD_LDFLAGS_MODULE_PREREQ := - - # Read KERNELRELEASE from include/config/kernel.release (if it exists) - KERNELRELEASE = $(shell cat include/config/kernel.release 2> /dev/null) -@@ -375,7 +376,7 @@ export VERSION PATCHLEVEL SUBLEVEL KERNE - export ARCH SRCARCH CONFIG_SHELL HOSTCC HOSTCFLAGS CROSS_COMPILE AS LD CC - export CPP AR NM STRIP OBJCOPY OBJDUMP - export MAKE AWK GENKSYMS INSTALLKERNEL PERL UTS_MACHINE --export HOSTCXX HOSTCXXFLAGS LDFLAGS_MODULE CHECK CHECKFLAGS -+export HOSTCXX HOSTCXXFLAGS LDFLAGS_MODULE KBUILD_LDFLAGS_MODULE_PREREQ CHECK CHECKFLAGS - - export KBUILD_CPPFLAGS NOSTDINC_FLAGS LINUXINCLUDE OBJCOPYFLAGS LDFLAGS - export KBUILD_CFLAGS CFLAGS_KERNEL CFLAGS_MODULE CFLAGS_GCOV ---- a/arch/powerpc/Makefile -+++ b/arch/powerpc/Makefile -@@ -94,7 +94,7 @@ else - endif - endif - --KBUILD_LDFLAGS_MODULE += arch/powerpc/lib/crtsavres.o -+KBUILD_LDFLAGS_MODULE_PREREQ += arch/powerpc/lib/crtsavres.o - - ifeq ($(CONFIG_TUNE_CELL),y) - KBUILD_CFLAGS += $(call cc-option,-mtune=cell) ---- a/scripts/Makefile.modpost -+++ b/scripts/Makefile.modpost -@@ -110,7 +110,14 @@ quiet_cmd_cc_o_c = CC $@ - cmd_cc_o_c = $(CC) $(c_flags) $(KBUILD_CFLAGS_MODULE) $(CFLAGS_MODULE) \ - -c -o $@ $< - --$(modules:.ko=.mod.o): %.mod.o: %.mod.c FORCE -+quiet_cmd_as_o_S = AS $(quiet_modtag) $@ -+cmd_as_o_S = $(CC) $(a_flags) $(AFLAGS_MODULE) -c -o $@ $< -+ -+$(KBUILD_LDFLAGS_MODULE_PREREQ): %.o: %.S FORCE -+ $(Q)mkdir -p $(dir $@) -+ $(call if_changed_dep,as_o_S) -+ -+$(modules:.ko=.mod.o): %.mod.o: %.mod.c $(KBUILD_LDFLAGS_MODULE_PREREQ) FORCE - $(call if_changed_dep,cc_o_c) - - targets += $(modules:.ko=.mod.o) -@@ -119,6 +126,7 @@ targets += $(modules:.ko=.mod.o) - quiet_cmd_ld_ko_o = LD [M] $@ - cmd_ld_ko_o = $(LD) -r $(LDFLAGS) \ - $(KBUILD_LDFLAGS_MODULE) $(LDFLAGS_MODULE) \ -+ $(KBUILD_LDFLAGS_MODULE_PREREQ) \ - -o $@ $(filter-out FORCE,$^) - - $(modules): %.ko :%.o %.mod.o FORCE diff --git a/target/linux/generic/patches-2.6.39/950-vm_exports.patch b/target/linux/generic/patches-2.6.39/950-vm_exports.patch new file mode 100644 index 00000000000..9fcaabc7916 --- /dev/null +++ b/target/linux/generic/patches-2.6.39/950-vm_exports.patch @@ -0,0 +1,116 @@ +--- a/mm/shmem.c ++++ b/mm/shmem.c +@@ -2711,6 +2711,16 @@ out: + + /* common code */ + ++void shmem_set_file(struct vm_area_struct *vma, struct file *file) ++{ ++ if (vma->vm_file) ++ fput(vma->vm_file); ++ vma->vm_file = file; ++ vma->vm_ops = &shmem_vm_ops; ++ vma->vm_flags |= VM_CAN_NONLINEAR; ++} ++EXPORT_SYMBOL_GPL(shmem_set_file); ++ + /** + * shmem_file_setup - get an unlinked file living in tmpfs + * @name: name for dentry (to be seen in /proc//maps +@@ -2788,10 +2798,7 @@ int shmem_zero_setup(struct vm_area_stru + if (IS_ERR(file)) + return PTR_ERR(file); + +- if (vma->vm_file) +- fput(vma->vm_file); +- vma->vm_file = file; +- vma->vm_ops = &shmem_vm_ops; +- vma->vm_flags |= VM_CAN_NONLINEAR; ++ shmem_set_file(vma, file); ++ + return 0; + } +--- a/fs/file.c ++++ b/fs/file.c +@@ -264,6 +264,7 @@ int expand_files(struct files_struct *fi + /* All good, so we try */ + return expand_fdtable(files, nr); + } ++EXPORT_SYMBOL_GPL(expand_files); + + static int count_open_files(struct fdtable *fdt) + { +--- a/kernel/exit.c ++++ b/kernel/exit.c +@@ -513,6 +513,7 @@ struct files_struct *get_files_struct(st + + return files; + } ++EXPORT_SYMBOL_GPL(get_files_struct); + + void put_files_struct(struct files_struct *files) + { +@@ -534,6 +535,7 @@ void put_files_struct(struct files_struc + rcu_read_unlock(); + } + } ++EXPORT_SYMBOL_GPL(put_files_struct); + + void reset_files_struct(struct files_struct *files) + { +--- a/kernel/sched.c ++++ b/kernel/sched.c +@@ -4781,6 +4781,7 @@ int can_nice(const struct task_struct *p + return (nice_rlim <= task_rlimit(p, RLIMIT_NICE) || + capable(CAP_SYS_NICE)); + } ++EXPORT_SYMBOL_GPL(can_nice); + + #ifdef __ARCH_WANT_SYS_NICE + +--- a/mm/memory.c ++++ b/mm/memory.c +@@ -1229,6 +1229,7 @@ unsigned long zap_page_range(struct vm_a + tlb_finish_mmu(tlb, address, end); + return end; + } ++EXPORT_SYMBOL_GPL(zap_page_range); + + /** + * zap_vma_ptes - remove ptes mapping the vma +@@ -2756,6 +2757,7 @@ int vmtruncate_range(struct inode *inode + + return 0; + } ++EXPORT_SYMBOL_GPL(vmtruncate_range); + + /* + * We enter with non-exclusive mmap_sem (to exclude vma changes, +--- a/mm/vmalloc.c ++++ b/mm/vmalloc.c +@@ -1245,6 +1245,7 @@ void unmap_kernel_range(unsigned long ad + vunmap_page_range(addr, end); + flush_tlb_kernel_range(addr, end); + } ++EXPORT_SYMBOL_GPL(unmap_kernel_range); + + int map_vm_area(struct vm_struct *area, pgprot_t prot, struct page ***pages) + { +@@ -1360,6 +1361,7 @@ struct vm_struct *get_vm_area(unsigned l + return __get_vm_area_node(size, 1, flags, VMALLOC_START, VMALLOC_END, + -1, GFP_KERNEL, __builtin_return_address(0)); + } ++EXPORT_SYMBOL_GPL(get_vm_area); + + struct vm_struct *get_vm_area_caller(unsigned long size, unsigned long flags, + void *caller) +--- a/include/linux/mm.h ++++ b/include/linux/mm.h +@@ -871,6 +871,7 @@ extern void __show_free_areas(unsigned i + + int shmem_lock(struct file *file, int lock, struct user_struct *user); + struct file *shmem_file_setup(const char *name, loff_t size, unsigned long flags); ++void shmem_set_file(struct vm_area_struct *vma, struct file *file); + int shmem_zero_setup(struct vm_area_struct *); + + #ifndef CONFIG_MMU diff --git a/target/linux/generic/patches-2.6.39/960-decompress_unlzo_fix.patch b/target/linux/generic/patches-2.6.39/960-decompress_unlzo_fix.patch new file mode 100644 index 00000000000..ee7c118ef06 --- /dev/null +++ b/target/linux/generic/patches-2.6.39/960-decompress_unlzo_fix.patch @@ -0,0 +1,23 @@ +--- /dev/null ++++ b/include/linux/decompress/unlzo_mm.h +@@ -0,0 +1,10 @@ ++#ifndef UNLZO_MM_H ++#define UNLZO_MM_H ++ ++#ifdef STATIC ++#define INIT ++#else ++#define INIT __init ++#endif ++ ++#endif +--- a/lib/decompress_unlzo.c ++++ b/lib/decompress_unlzo.c +@@ -38,6 +38,7 @@ + + #include + #include ++#include + #include + + #include diff --git a/target/linux/generic/patches-2.6.39/970-ocf_kbuild_integration.patch b/target/linux/generic/patches-2.6.39/970-ocf_kbuild_integration.patch deleted file mode 100644 index 3c322f3d140..00000000000 --- a/target/linux/generic/patches-2.6.39/970-ocf_kbuild_integration.patch +++ /dev/null @@ -1,20 +0,0 @@ ---- a/crypto/Kconfig -+++ b/crypto/Kconfig -@@ -866,3 +866,6 @@ config CRYPTO_USER_API_SKCIPHER - source "drivers/crypto/Kconfig" - - endif # if CRYPTO -+ -+source "crypto/ocf/Kconfig" -+ ---- a/crypto/Makefile -+++ b/crypto/Makefile -@@ -89,6 +89,8 @@ obj-$(CONFIG_CRYPTO_USER_API) += af_alg. - obj-$(CONFIG_CRYPTO_USER_API_HASH) += algif_hash.o - obj-$(CONFIG_CRYPTO_USER_API_SKCIPHER) += algif_skcipher.o - -+obj-$(CONFIG_OCF_OCF) += ocf/ -+ - # - # generic algorithms and the async_tx api - # diff --git a/target/linux/generic/patches-2.6.39/971-ocf_20100325.patch b/target/linux/generic/patches-2.6.39/971-ocf_20100325.patch deleted file mode 100644 index 537f9ed3745..00000000000 --- a/target/linux/generic/patches-2.6.39/971-ocf_20100325.patch +++ /dev/null @@ -1,170 +0,0 @@ ---- a/drivers/char/random.c -+++ b/drivers/char/random.c -@@ -130,6 +130,9 @@ - * void add_interrupt_randomness(int irq); - * void add_disk_randomness(struct gendisk *disk); - * -+ * void random_input_words(__u32 *buf, size_t wordcount, int ent_count) -+ * int random_input_wait(void); -+ * - * add_input_randomness() uses the input layer interrupt timing, as well as - * the event type information from the hardware. - * -@@ -147,6 +150,13 @@ - * seek times do not make for good sources of entropy, as their seek - * times are usually fairly consistent. - * -+ * random_input_words() just provides a raw block of entropy to the input -+ * pool, such as from a hardware entropy generator. -+ * -+ * random_input_wait() suspends the caller until such time as the -+ * entropy pool falls below the write threshold, and returns a count of how -+ * much entropy (in bits) is needed to sustain the pool. -+ * - * All of these routines try to estimate how many bits of randomness a - * particular randomness source. They do this by keeping track of the - * first and second order deltas of the event timings. -@@ -722,6 +732,61 @@ void add_disk_randomness(struct gendisk - } - #endif - -+/* -+ * random_input_words - add bulk entropy to pool -+ * -+ * @buf: buffer to add -+ * @wordcount: number of __u32 words to add -+ * @ent_count: total amount of entropy (in bits) to credit -+ * -+ * this provides bulk input of entropy to the input pool -+ * -+ */ -+void random_input_words(__u32 *buf, size_t wordcount, int ent_count) -+{ -+ mix_pool_bytes(&input_pool, buf, wordcount*4); -+ -+ credit_entropy_bits(&input_pool, ent_count); -+ -+ DEBUG_ENT("crediting %d bits => %d\n", -+ ent_count, input_pool.entropy_count); -+ /* -+ * Wake up waiting processes if we have enough -+ * entropy. -+ */ -+ if (input_pool.entropy_count >= random_read_wakeup_thresh) -+ wake_up_interruptible(&random_read_wait); -+} -+EXPORT_SYMBOL(random_input_words); -+ -+/* -+ * random_input_wait - wait until random needs entropy -+ * -+ * this function sleeps until the /dev/random subsystem actually -+ * needs more entropy, and then return the amount of entropy -+ * that it would be nice to have added to the system. -+ */ -+int random_input_wait(void) -+{ -+ int count; -+ -+ wait_event_interruptible(random_write_wait, -+ input_pool.entropy_count < random_write_wakeup_thresh); -+ -+ count = random_write_wakeup_thresh - input_pool.entropy_count; -+ -+ /* likely we got woken up due to a signal */ -+ if (count <= 0) count = random_read_wakeup_thresh; -+ -+ DEBUG_ENT("requesting %d bits from input_wait()er %d<%d\n", -+ count, -+ input_pool.entropy_count, random_write_wakeup_thresh); -+ -+ return count; -+} -+EXPORT_SYMBOL(random_input_wait); -+ -+ - /********************************************************************* - * - * Entropy extraction routines ---- a/fs/fcntl.c -+++ b/fs/fcntl.c -@@ -142,6 +142,7 @@ SYSCALL_DEFINE1(dup, unsigned int, filde - } - return ret; - } -+EXPORT_SYMBOL(sys_dup); - - #define SETFL_MASK (O_APPEND | O_NONBLOCK | O_NDELAY | O_DIRECT | O_NOATIME) - ---- a/include/linux/miscdevice.h -+++ b/include/linux/miscdevice.h -@@ -18,6 +18,7 @@ - #define APOLLO_MOUSE_MINOR 7 - #define PC110PAD_MINOR 9 - /*#define ADB_MOUSE_MINOR 10 FIXME OBSOLETE */ -+#define CRYPTODEV_MINOR 70 /* /dev/crypto */ - #define WATCHDOG_MINOR 130 /* Watchdog timer */ - #define TEMP_MINOR 131 /* Temperature Sensor */ - #define RTC_MINOR 135 ---- a/include/linux/random.h -+++ b/include/linux/random.h -@@ -9,6 +9,7 @@ - - #include - #include -+#include /* for __u32 in user space */ - #include - - /* ioctl()'s for the random number generator */ -@@ -34,6 +35,30 @@ - /* Clear the entropy pool and associated counters. (Superuser only.) */ - #define RNDCLEARPOOL _IO( 'R', 0x06 ) - -+#ifdef CONFIG_FIPS_RNG -+ -+/* Size of seed value - equal to AES blocksize */ -+#define AES_BLOCK_SIZE_BYTES 16 -+#define SEED_SIZE_BYTES AES_BLOCK_SIZE_BYTES -+/* Size of AES key */ -+#define KEY_SIZE_BYTES 16 -+ -+/* ioctl() structure used by FIPS 140-2 Tests */ -+struct rand_fips_test { -+ unsigned char key[KEY_SIZE_BYTES]; /* Input */ -+ unsigned char datetime[SEED_SIZE_BYTES]; /* Input */ -+ unsigned char seed[SEED_SIZE_BYTES]; /* Input */ -+ unsigned char result[SEED_SIZE_BYTES]; /* Output */ -+}; -+ -+/* FIPS 140-2 RNG Variable Seed Test. (Superuser only.) */ -+#define RNDFIPSVST _IOWR('R', 0x10, struct rand_fips_test) -+ -+/* FIPS 140-2 RNG Monte Carlo Test. (Superuser only.) */ -+#define RNDFIPSMCT _IOWR('R', 0x11, struct rand_fips_test) -+ -+#endif /* #ifdef CONFIG_FIPS_RNG */ -+ - struct rand_pool_info { - int entropy_count; - int buf_size; -@@ -54,6 +79,10 @@ extern void add_input_randomness(unsigne - unsigned int value); - extern void add_interrupt_randomness(int irq); - -+extern void random_input_words(__u32 *buf, size_t wordcount, int ent_count); -+extern int random_input_wait(void); -+#define HAS_RANDOM_INPUT_WAIT 1 -+ - extern void get_random_bytes(void *buf, int nbytes); - void generate_random_uuid(unsigned char uuid_out[16]); - ---- a/kernel/pid.c -+++ b/kernel/pid.c -@@ -424,6 +424,7 @@ struct task_struct *find_task_by_vpid(pi - { - return find_task_by_pid_ns(vnr, current->nsproxy->pid_ns); - } -+EXPORT_SYMBOL(find_task_by_vpid); - - struct pid *get_task_pid(struct task_struct *task, enum pid_type type) - { diff --git a/target/linux/generic/patches-2.6.39/972-mv_cesa_depends.patch b/target/linux/generic/patches-2.6.39/972-mv_cesa_depends.patch deleted file mode 100644 index 1fd2f6365a5..00000000000 --- a/target/linux/generic/patches-2.6.39/972-mv_cesa_depends.patch +++ /dev/null @@ -1,10 +0,0 @@ ---- a/drivers/crypto/Kconfig -+++ b/drivers/crypto/Kconfig -@@ -162,6 +162,7 @@ config CRYPTO_DEV_MV_CESA - depends on PLAT_ORION - select CRYPTO_ALGAPI - select CRYPTO_AES -+ select CRYPTO_HASH2 - select CRYPTO_BLKCIPHER2 - help - This driver allows you to utilize the Cryptographic Engines and diff --git a/target/linux/generic/patches-2.6.39/974-ssb_b43_default_on.patch b/target/linux/generic/patches-2.6.39/974-ssb_b43_default_on.patch deleted file mode 100644 index 3176dcb4d87..00000000000 --- a/target/linux/generic/patches-2.6.39/974-ssb_b43_default_on.patch +++ /dev/null @@ -1,19 +0,0 @@ ---- a/drivers/ssb/Kconfig -+++ b/drivers/ssb/Kconfig -@@ -29,6 +29,7 @@ config SSB_SPROM - config SSB_BLOCKIO - bool - depends on SSB -+ default y - - config SSB_PCIHOST_POSSIBLE - bool -@@ -49,7 +50,7 @@ config SSB_PCIHOST - config SSB_B43_PCI_BRIDGE - bool - depends on SSB_PCIHOST -- default n -+ default y - - config SSB_PCMCIAHOST_POSSIBLE - bool diff --git a/target/linux/generic/patches-2.6.39/975-hifn795x-byteswap.patch b/target/linux/generic/patches-2.6.39/975-hifn795x-byteswap.patch deleted file mode 100644 index 3a37c951ec0..00000000000 --- a/target/linux/generic/patches-2.6.39/975-hifn795x-byteswap.patch +++ /dev/null @@ -1,17 +0,0 @@ ---- a/drivers/crypto/hifn_795x.c -+++ b/drivers/crypto/hifn_795x.c -@@ -682,12 +682,12 @@ static inline u32 hifn_read_1(struct hif - - static inline void hifn_write_0(struct hifn_device *dev, u32 reg, u32 val) - { -- writel((__force u32)cpu_to_le32(val), dev->bar[0] + reg); -+ writel(val, dev->bar[0] + reg); - } - - static inline void hifn_write_1(struct hifn_device *dev, u32 reg, u32 val) - { -- writel((__force u32)cpu_to_le32(val), dev->bar[1] + reg); -+ writel(val, dev->bar[1] + reg); - } - - static void hifn_wait_puc(struct hifn_device *dev) diff --git a/target/linux/generic/patches-2.6.39/977-textsearch_kconfig_hacks.patch b/target/linux/generic/patches-2.6.39/977-textsearch_kconfig_hacks.patch deleted file mode 100644 index e4d1909ea39..00000000000 --- a/target/linux/generic/patches-2.6.39/977-textsearch_kconfig_hacks.patch +++ /dev/null @@ -1,23 +0,0 @@ ---- a/lib/Kconfig -+++ b/lib/Kconfig -@@ -206,16 +206,16 @@ config BCH_CONST_T - # Textsearch support is select'ed if needed - # - config TEXTSEARCH -- boolean -+ boolean "Textsearch support" - - config TEXTSEARCH_KMP -- tristate -+ tristate "Textsearch KMP" - - config TEXTSEARCH_BM -- tristate -+ tristate "Textsearch BM" - - config TEXTSEARCH_FSM -- tristate -+ tristate "Textsearch FSM" - - config BTREE - boolean diff --git a/target/linux/generic/patches-2.6.39/978-lib80211_kconfig_hacks.patch b/target/linux/generic/patches-2.6.39/978-lib80211_kconfig_hacks.patch deleted file mode 100644 index c044deac00e..00000000000 --- a/target/linux/generic/patches-2.6.39/978-lib80211_kconfig_hacks.patch +++ /dev/null @@ -1,19 +0,0 @@ ---- a/net/wireless/Kconfig -+++ b/net/wireless/Kconfig -@@ -142,13 +142,13 @@ config LIB80211 - you want this built into your kernel. - - config LIB80211_CRYPT_WEP -- tristate -+ tristate "LIB80211_CRYPT_WEP" - - config LIB80211_CRYPT_CCMP -- tristate -+ tristate "LIB80211_CRYPT_CCMP" - - config LIB80211_CRYPT_TKIP -- tristate -+ tristate "LIB80211_CRYPT_TKIP" - - config LIB80211_DEBUG - bool "lib80211 debugging messages" diff --git a/target/linux/generic/patches-2.6.39/979-crypto_add_kconfig_prompts.patch b/target/linux/generic/patches-2.6.39/979-crypto_add_kconfig_prompts.patch deleted file mode 100644 index 8462c711f02..00000000000 --- a/target/linux/generic/patches-2.6.39/979-crypto_add_kconfig_prompts.patch +++ /dev/null @@ -1,47 +0,0 @@ ---- a/crypto/Kconfig -+++ b/crypto/Kconfig -@@ -31,7 +31,7 @@ config CRYPTO_FIPS - this is. - - config CRYPTO_ALGAPI -- tristate -+ tristate "ALGAPI" - select CRYPTO_ALGAPI2 - help - This option provides the API for cryptographic algorithms. -@@ -40,7 +40,7 @@ config CRYPTO_ALGAPI2 - tristate - - config CRYPTO_AEAD -- tristate -+ tristate "AEAD" - select CRYPTO_AEAD2 - select CRYPTO_ALGAPI - -@@ -49,7 +49,7 @@ config CRYPTO_AEAD2 - select CRYPTO_ALGAPI2 - - config CRYPTO_BLKCIPHER -- tristate -+ tristate "BLKCIPHER" - select CRYPTO_BLKCIPHER2 - select CRYPTO_ALGAPI - -@@ -60,7 +60,7 @@ config CRYPTO_BLKCIPHER2 - select CRYPTO_WORKQUEUE - - config CRYPTO_HASH -- tristate -+ tristate "HASH" - select CRYPTO_HASH2 - select CRYPTO_ALGAPI - -@@ -69,7 +69,7 @@ config CRYPTO_HASH2 - select CRYPTO_ALGAPI2 - - config CRYPTO_RNG -- tristate -+ tristate "RNG" - select CRYPTO_RNG2 - select CRYPTO_ALGAPI - diff --git a/target/linux/generic/patches-2.6.39/980-vm_exports.patch b/target/linux/generic/patches-2.6.39/980-vm_exports.patch deleted file mode 100644 index 9fcaabc7916..00000000000 --- a/target/linux/generic/patches-2.6.39/980-vm_exports.patch +++ /dev/null @@ -1,116 +0,0 @@ ---- a/mm/shmem.c -+++ b/mm/shmem.c -@@ -2711,6 +2711,16 @@ out: - - /* common code */ - -+void shmem_set_file(struct vm_area_struct *vma, struct file *file) -+{ -+ if (vma->vm_file) -+ fput(vma->vm_file); -+ vma->vm_file = file; -+ vma->vm_ops = &shmem_vm_ops; -+ vma->vm_flags |= VM_CAN_NONLINEAR; -+} -+EXPORT_SYMBOL_GPL(shmem_set_file); -+ - /** - * shmem_file_setup - get an unlinked file living in tmpfs - * @name: name for dentry (to be seen in /proc//maps -@@ -2788,10 +2798,7 @@ int shmem_zero_setup(struct vm_area_stru - if (IS_ERR(file)) - return PTR_ERR(file); - -- if (vma->vm_file) -- fput(vma->vm_file); -- vma->vm_file = file; -- vma->vm_ops = &shmem_vm_ops; -- vma->vm_flags |= VM_CAN_NONLINEAR; -+ shmem_set_file(vma, file); -+ - return 0; - } ---- a/fs/file.c -+++ b/fs/file.c -@@ -264,6 +264,7 @@ int expand_files(struct files_struct *fi - /* All good, so we try */ - return expand_fdtable(files, nr); - } -+EXPORT_SYMBOL_GPL(expand_files); - - static int count_open_files(struct fdtable *fdt) - { ---- a/kernel/exit.c -+++ b/kernel/exit.c -@@ -513,6 +513,7 @@ struct files_struct *get_files_struct(st - - return files; - } -+EXPORT_SYMBOL_GPL(get_files_struct); - - void put_files_struct(struct files_struct *files) - { -@@ -534,6 +535,7 @@ void put_files_struct(struct files_struc - rcu_read_unlock(); - } - } -+EXPORT_SYMBOL_GPL(put_files_struct); - - void reset_files_struct(struct files_struct *files) - { ---- a/kernel/sched.c -+++ b/kernel/sched.c -@@ -4781,6 +4781,7 @@ int can_nice(const struct task_struct *p - return (nice_rlim <= task_rlimit(p, RLIMIT_NICE) || - capable(CAP_SYS_NICE)); - } -+EXPORT_SYMBOL_GPL(can_nice); - - #ifdef __ARCH_WANT_SYS_NICE - ---- a/mm/memory.c -+++ b/mm/memory.c -@@ -1229,6 +1229,7 @@ unsigned long zap_page_range(struct vm_a - tlb_finish_mmu(tlb, address, end); - return end; - } -+EXPORT_SYMBOL_GPL(zap_page_range); - - /** - * zap_vma_ptes - remove ptes mapping the vma -@@ -2756,6 +2757,7 @@ int vmtruncate_range(struct inode *inode - - return 0; - } -+EXPORT_SYMBOL_GPL(vmtruncate_range); - - /* - * We enter with non-exclusive mmap_sem (to exclude vma changes, ---- a/mm/vmalloc.c -+++ b/mm/vmalloc.c -@@ -1245,6 +1245,7 @@ void unmap_kernel_range(unsigned long ad - vunmap_page_range(addr, end); - flush_tlb_kernel_range(addr, end); - } -+EXPORT_SYMBOL_GPL(unmap_kernel_range); - - int map_vm_area(struct vm_struct *area, pgprot_t prot, struct page ***pages) - { -@@ -1360,6 +1361,7 @@ struct vm_struct *get_vm_area(unsigned l - return __get_vm_area_node(size, 1, flags, VMALLOC_START, VMALLOC_END, - -1, GFP_KERNEL, __builtin_return_address(0)); - } -+EXPORT_SYMBOL_GPL(get_vm_area); - - struct vm_struct *get_vm_area_caller(unsigned long size, unsigned long flags, - void *caller) ---- a/include/linux/mm.h -+++ b/include/linux/mm.h -@@ -871,6 +871,7 @@ extern void __show_free_areas(unsigned i - - int shmem_lock(struct file *file, int lock, struct user_struct *user); - struct file *shmem_file_setup(const char *name, loff_t size, unsigned long flags); -+void shmem_set_file(struct vm_area_struct *vma, struct file *file); - int shmem_zero_setup(struct vm_area_struct *); - - #ifndef CONFIG_MMU diff --git a/target/linux/generic/patches-2.6.39/981-wireless_ext_kconfig_hack.patch b/target/linux/generic/patches-2.6.39/981-wireless_ext_kconfig_hack.patch deleted file mode 100644 index daac5898aea..00000000000 --- a/target/linux/generic/patches-2.6.39/981-wireless_ext_kconfig_hack.patch +++ /dev/null @@ -1,22 +0,0 @@ ---- a/net/wireless/Kconfig -+++ b/net/wireless/Kconfig -@@ -1,5 +1,5 @@ - config WIRELESS_EXT -- bool -+ bool "Wireless extensions" - - config WEXT_CORE - def_bool y -@@ -11,10 +11,10 @@ config WEXT_PROC - depends on WEXT_CORE - - config WEXT_SPY -- bool -+ bool "WEXT_SPY" - - config WEXT_PRIV -- bool -+ bool "WEXT_PRIV" - - config CFG80211 - tristate "cfg80211 - wireless configuration API" diff --git a/target/linux/generic/patches-2.6.39/991-ppc4xx_optimization.patch b/target/linux/generic/patches-2.6.39/991-ppc4xx_optimization.patch deleted file mode 100644 index 49d36592861..00000000000 --- a/target/linux/generic/patches-2.6.39/991-ppc4xx_optimization.patch +++ /dev/null @@ -1,31 +0,0 @@ -Upstream doesn't optimize the kernel and bootwrappers for ppc44x because -they still want to support gcc 3.3 -- well, we don't. - ---- a/arch/powerpc/Makefile -+++ b/arch/powerpc/Makefile -@@ -130,7 +130,8 @@ ifeq ($(CONFIG_FUNCTION_TRACER),y) - KBUILD_CFLAGS += -mno-sched-epilog - endif - --cpu-as-$(CONFIG_4xx) += -Wa,-m405 -+cpu-as-$(CONFIG_40x) += -Wa,-m405 -+cpu-as-$(CONFIG_44x) += -Wa,-m440 - cpu-as-$(CONFIG_6xx) += -Wa,-maltivec - cpu-as-$(CONFIG_POWER4) += -Wa,-maltivec - cpu-as-$(CONFIG_E500) += -Wa,-me500 ---- a/arch/powerpc/boot/Makefile -+++ b/arch/powerpc/boot/Makefile -@@ -38,10 +38,10 @@ BOOTCFLAGS += -I$(obj) -I$(srctree)/$(ob - DTC_FLAGS ?= -p 1024 - - $(obj)/4xx.o: BOOTCFLAGS += -mcpu=405 --$(obj)/ebony.o: BOOTCFLAGS += -mcpu=405 -+$(obj)/ebony.o: BOOTCFLAGS += -mcpu=440 - $(obj)/cuboot-hotfoot.o: BOOTCFLAGS += -mcpu=405 --$(obj)/cuboot-taishan.o: BOOTCFLAGS += -mcpu=405 --$(obj)/cuboot-katmai.o: BOOTCFLAGS += -mcpu=405 -+$(obj)/cuboot-taishan.o: BOOTCFLAGS += -mcpu=440 -+$(obj)/cuboot-katmai.o: BOOTCFLAGS += -mcpu=440 - $(obj)/cuboot-acadia.o: BOOTCFLAGS += -mcpu=405 - $(obj)/treeboot-walnut.o: BOOTCFLAGS += -mcpu=405 - $(obj)/treeboot-iss4xx.o: BOOTCFLAGS += -mcpu=405 diff --git a/target/linux/generic/patches-2.6.39/998-openwrt_lzma_options.patch b/target/linux/generic/patches-2.6.39/998-openwrt_lzma_options.patch deleted file mode 100644 index 67e0ceefb08..00000000000 --- a/target/linux/generic/patches-2.6.39/998-openwrt_lzma_options.patch +++ /dev/null @@ -1,54 +0,0 @@ ---- a/scripts/Makefile.lib -+++ b/scripts/Makefile.lib -@@ -254,7 +254,7 @@ cmd_bzip2 = (cat $(filter-out FORCE,$^) - - quiet_cmd_lzma = LZMA $@ - cmd_lzma = (cat $(filter-out FORCE,$^) | \ -- lzma -9 && $(call size_append, $(filter-out FORCE,$^))) > $@ || \ -+ lzma e -d20 -lc1 -lp2 -pb2 -eos -si -so && $(call size_append, $(filter-out FORCE,$^))) > $@ || \ - (rm -f $@ ; false) - - quiet_cmd_lzo = LZO $@ ---- a/scripts/gen_initramfs_list.sh -+++ b/scripts/gen_initramfs_list.sh -@@ -226,7 +226,7 @@ cpio_list= - output="/dev/stdout" - output_file="" - is_cpio_compressed= --compr="gzip -9 -f" -+compr="gzip -9 -f -" - - arg="$1" - case "$arg" in -@@ -240,9 +240,9 @@ case "$arg" in - output_file="$1" - cpio_list="$(mktemp ${TMPDIR:-/tmp}/cpiolist.XXXXXX)" - output=${cpio_list} -- echo "$output_file" | grep -q "\.gz$" && compr="gzip -9 -f" -- echo "$output_file" | grep -q "\.bz2$" && compr="bzip2 -9 -f" -- echo "$output_file" | grep -q "\.lzma$" && compr="lzma -9 -f" -+ echo "$output_file" | grep -q "\.gz$" && compr="gzip -9 -f -" -+ echo "$output_file" | grep -q "\.bz2$" && compr="bzip2 -9 -f -" -+ echo "$output_file" | grep -q "\.lzma$" && compr="lzma e -d20 -lc1 -lp2 -pb2 -eos -si -so" - echo "$output_file" | grep -q "\.xz$" && \ - compr="xz --check=crc32 --lzma2=dict=1MiB" - echo "$output_file" | grep -q "\.lzo$" && compr="lzop -9 -f" -@@ -296,7 +296,7 @@ if [ ! -z ${output_file} ]; then - if [ "${is_cpio_compressed}" = "compressed" ]; then - cat ${cpio_tfile} > ${output_file} - else -- (cat ${cpio_tfile} | ${compr} - > ${output_file}) \ -+ (cat ${cpio_tfile} | ${compr} > ${output_file}) \ - || (rm -f ${output_file} ; false) - fi - [ -z ${cpio_file} ] && rm ${cpio_tfile} ---- a/lib/decompress.c -+++ b/lib/decompress.c -@@ -40,6 +40,7 @@ static const struct compress_format { - { {037, 0236}, "gzip", gunzip }, - { {0x42, 0x5a}, "bzip2", bunzip2 }, - { {0x5d, 0x00}, "lzma", unlzma }, -+ { {0x6d, 0x00}, "lzma-openwrt", unlzma }, - { {0xfd, 0x37}, "xz", unxz }, - { {0x89, 0x4c}, "lzo", unlzo }, - { {0, 0}, NULL, NULL } diff --git a/target/linux/generic/patches-2.6.39/999-use_preinit_as_init.patch b/target/linux/generic/patches-2.6.39/999-use_preinit_as_init.patch deleted file mode 100644 index c47779810df..00000000000 --- a/target/linux/generic/patches-2.6.39/999-use_preinit_as_init.patch +++ /dev/null @@ -1,14 +0,0 @@ ---- a/init/main.c -+++ b/init/main.c -@@ -764,10 +764,7 @@ static noinline int init_post(void) - printk(KERN_WARNING "Failed to execute %s. Attempting " - "defaults...\n", execute_command); - } -- run_init_process("/sbin/init"); -- run_init_process("/etc/init"); -- run_init_process("/bin/init"); -- run_init_process("/bin/sh"); -+ run_init_process("/etc/preinit"); - - panic("No init found. Try passing init= option to kernel. " - "See Linux Documentation/init.txt for guidance.");