add preliminary 2.6.32 support

SVN-Revision: 18283

diff --git a/package/madwifi/patches/453-procps.patch b/package/madwifi/patches/453-procps.patch
new file mode 100644 (file)
index 0000000..2537640
--- /dev/null
+++ b/package/madwifi/patches/453-procps.patch
@@ -0,0 +1,55 @@
+--- a/net80211/ieee80211_linux.h       2009-10-04 22:27:05.528151949 +0300
++++ b/net80211/ieee80211_linux.h       2009-10-04 22:28:06.255777139 +0300
+@@ -640,12 +640,24 @@
+         void __user *buffer, size_t *lenp)
+ #define       IEEE80211_SYSCTL_PROC_DOINTVEC(ctl, write, filp, buffer, lenp, ppos) \
+       proc_dointvec(ctl, write, filp, buffer, lenp)
+-#else
++#define IEEE80211_SYSCTL_PROC_DOSTRING(ctl, write, filp, buffer, lenp, ppos) \
++        proc_dostring(ctl, write, filp, buffer, lenp)
++#elif LINUX_VERSION_CODE < KERNEL_VERSION(2,6,32)
+ #define       IEEE80211_SYSCTL_DECL(f, ctl, write, filp, buffer, lenp, ppos) \
+       f(ctl_table *ctl, int write, struct file *filp, \
+         void __user *buffer, size_t *lenp, loff_t *ppos)
+ #define       IEEE80211_SYSCTL_PROC_DOINTVEC(ctl, write, filp, buffer, lenp, ppos) \
+       proc_dointvec(ctl, write, filp, buffer, lenp, ppos)
++#define IEEE80211_SYSCTL_PROC_DOSTRING(ctl, write, filp, buffer, lenp, ppos) \
++        proc_dostring(ctl, write, filp, buffer, lenp, ppos)
++#else /* Linux 2.6.32+ */
++#define       IEEE80211_SYSCTL_DECL(f, ctl, write, filp, buffer, lenp, ppos) \
++      f(ctl_table *ctl, int write, \
++        void __user *buffer, size_t *lenp, loff_t *ppos)
++#define       IEEE80211_SYSCTL_PROC_DOINTVEC(ctl, write, filp, buffer, lenp, ppos) \
++      proc_dointvec(ctl, write, buffer, lenp, ppos)
++#define IEEE80211_SYSCTL_PROC_DOSTRING(ctl, write, filp, buffer, lenp, ppos) \
++        proc_dostring(ctl, write, buffer, lenp, ppos)
+ #endif
+ 
+ void ieee80211_virtfs_latevattach(struct ieee80211vap *);
+--- a/ath/if_athvar.h  2009-10-04 22:27:05.543151943 +0300
++++ b/ath/if_athvar.h  2009-10-04 22:27:40.115902053 +0300
+@@ -173,14 +173,22 @@
+       proc_dointvec(ctl, write, filp, buffer, lenp)
+ #define       ATH_SYSCTL_PROC_DOSTRING(ctl, write, filp, buffer, lenp, ppos) \
+       proc_dostring(ctl, write, filp, buffer, lenp)
+-#else /* LINUX_VERSION_CODE < KERNEL_VERSION(2,6,8) */
++#elif LINUX_VERSION_CODE < KERNEL_VERSION(2,6,32)
+ #define       ATH_SYSCTL_DECL(f, ctl, write, filp, buffer, lenp, ppos) \
+       f(ctl_table *ctl, int write, struct file *filp, \
+         void __user *buffer, size_t *lenp, loff_t *ppos)
+ #define       ATH_SYSCTL_PROC_DOINTVEC(ctl, write, filp, buffer, lenp, ppos) \
+       proc_dointvec(ctl, write, filp, buffer, lenp, ppos)
++#define ATH_SYSCTL_PROC_DOSTRING(ctl, write, filp, buffer, lenp, ppos) \
++        proc_dostring(ctl, write, filp, buffer, lenp, ppos)
++#else /* Linux 2.6.32+ */
++#define       ATH_SYSCTL_DECL(f, ctl, write, filp, buffer, lenp, ppos) \
++      f(ctl_table *ctl, int write, \
++        void __user *buffer, size_t *lenp, loff_t *ppos)
++#define       ATH_SYSCTL_PROC_DOINTVEC(ctl, write, filp, buffer, lenp, ppos) \
++      proc_dointvec(ctl, write, buffer, lenp, ppos)
+ #define       ATH_SYSCTL_PROC_DOSTRING(ctl, write, filp, buffer, lenp, ppos) \
+-      proc_dostring(ctl, write, filp, buffer, lenp, ppos)
++      proc_dostring(ctl, write, buffer, lenp, ppos)
+ #endif
+ 
+ #define       ATH_TIMEOUT     1000

diff --git a/target/linux/generic-2.6/config-2.6.32 b/target/linux/generic-2.6/config-2.6.32
new file mode 100644 (file)
index 0000000..4d1aee1
--- /dev/null
+++ b/target/linux/generic-2.6/config-2.6.32
@@ -0,0 +1,2666 @@
+# CONFIG_6PACK is not set
+# CONFIG_8139CP is not set
+# CONFIG_8139TOO is not set
+# CONFIG_9P_FS is not set
+# CONFIG_AB3100_CORE is not set
+# CONFIG_ACCESSIBILITY is not set
+# CONFIG_ACENIC is not set
+# CONFIG_ACORN_PARTITION is not set
+# CONFIG_ADAPTEC_STARFIRE is not set
+# CONFIG_ADFS_FS is not set
+# CONFIG_ADM6996_PHY is not set
+# CONFIG_ADM8211 is not set
+# CONFIG_AFFS_FS is not set
+# CONFIG_AF_RXRPC is not set
+# CONFIG_AFS_FS is not set
+CONFIG_AIO=y
+# CONFIG_AIRO_CS is not set
+# CONFIG_AIRO is not set
+# CONFIG_ALIM7101_WDT is not set
+# CONFIG_ALTERA_PCIE_CHDMA is not set
+# CONFIG_AMD8111_ETH is not set
+# CONFIG_AMIGA_PARTITION is not set
+# CONFIG_ANDROID is not set
+CONFIG_ANON_INODES=y
+# CONFIG_APPLICOM is not set
+# CONFIG_AR8216_PHY is not set
+# CONFIG_AR9170_USB is not set
+# CONFIG_ARCH_AAEC2000 is not set
+# CONFIG_ARCH_AT91 is not set
+# CONFIG_ARCH_BCMRING is not set
+# CONFIG_ARCH_CLPS711X is not set
+# CONFIG_ARCH_DAVINCI is not set
+# CONFIG_ARCH_EBSA110 is not set
+# CONFIG_ARCH_EP93XX is not set
+CONFIG_ARCH_FLATMEM_ENABLE=y
+# CONFIG_ARCH_FOOTBRIDGE is not set
+# CONFIG_ARCH_GEMINI is not set
+# CONFIG_ARCH_H720X is not set
+# CONFIG_ARCH_IMX is not set
+# CONFIG_ARCH_INTEGRATOR is not set
+# CONFIG_ARCH_IOP13XX is not set
+# CONFIG_ARCH_IOP32X is not set
+# CONFIG_ARCH_IOP33X is not set
+# CONFIG_ARCH_IXP2000 is not set
+# CONFIG_ARCH_IXP23XX is not set
+# CONFIG_ARCH_IXP4XX is not set
+# CONFIG_ARCH_KIRKWOOD is not set
+# CONFIG_ARCH_KS8695 is not set
+# CONFIG_ARCH_L7200 is not set
+# CONFIG_ARCH_LH7A40X is not set
+# CONFIG_ARCH_LOKI is not set
+# CONFIG_ARCH_MMP is not set
+# CONFIG_ARCH_MSM is not set
+# CONFIG_ARCH_MV78XX0 is not set
+# CONFIG_ARCH_MXC is not set
+# CONFIG_ARCH_NETX is not set
+# CONFIG_ARCH_NOMADIK is not set
+# CONFIG_ARCH_NS9XXX is not set
+# CONFIG_ARCH_OMAP is not set
+# CONFIG_ARCH_ORION5X is not set
+# CONFIG_ARCH_PNX4008 is not set
+# CONFIG_ARCH_PXA is not set
+# CONFIG_ARCH_REALVIEW is not set
+# CONFIG_ARCH_RPC is not set
+# CONFIG_ARCH_S3C2410 is not set
+# CONFIG_ARCH_S3C64XX is not set
+# CONFIG_ARCH_S5PC1XX is not set
+# CONFIG_ARCH_SA1100 is not set
+# CONFIG_ARCH_SHARK is not set
+# CONFIG_ARCH_STMP3XXX is not set
+# CONFIG_ARCH_U300 is not set
+# CONFIG_ARCH_VERSATILE is not set
+# CONFIG_ARCH_W90X900 is not set
+# CONFIG_ARCNET is not set
+# CONFIG_ARM_UNWIND is not set
+CONFIG_ARPD=y
+# CONFIG_ARTHUR is not set
+CONFIG_ASK_IP_FIB_HASH=y
+# CONFIG_ASUS_OLED is not set
+# CONFIG_ASYNC_TX_DMA is not set
+# CONFIG_AT24 is not set
+# CONFIG_AT76C50X_USB is not set
+# CONFIG_ATA_ACPI is not set
+# CONFIG_ATA_GENERIC is not set
+# CONFIG_ATA is not set
+# CONFIG_ATALK is not set
+# CONFIG_ATA_OVER_ETH is not set
+# CONFIG_ATARI_PARTITION is not set
+CONFIG_ATA_SFF=y
+# CONFIG_ATH5K is not set
+# CONFIG_ATH9K is not set
+# CONFIG_ATL1C is not set
+# CONFIG_ATL1E is not set
+# CONFIG_ATL1 is not set
+# CONFIG_ATL2 is not set
+# CONFIG_ATM_AMBASSADOR is not set
+CONFIG_ATM_BR2684_IPFILTER=y
+# CONFIG_ATM_BR2684 is not set
+# CONFIG_ATM_CLIP is not set
+CONFIG_ATM_CLIP_NO_ICMP=y
+# CONFIG_ATM_DRIVERS is not set
+# CONFIG_ATM_DUMMY is not set
+# CONFIG_ATMEL is not set
+# CONFIG_ATM_ENI is not set
+# CONFIG_ATM_FIRESTREAM is not set
+# CONFIG_ATM_FORE200E is not set
+# CONFIG_ATM_FORE200E_MAYBE is not set
+# CONFIG_ATM_HE is not set
+# CONFIG_ATM_HORIZON is not set
+# CONFIG_ATM_IA is not set
+# CONFIG_ATM_IDT77252 is not set
+# CONFIG_ATM is not set
+# CONFIG_ATM_LANAI is not set
+# CONFIG_ATM_LANE is not set
+# CONFIG_ATM_MPOA is not set
+# CONFIG_ATM_NICSTAR is not set
+# CONFIG_ATM_SOLOS is not set
+# CONFIG_ATM_TCP is not set
+# CONFIG_ATM_ZATM is not set
+# CONFIG_AUDIT is not set
+# CONFIG_AUTOFS4_FS is not set
+# CONFIG_AUTOFS_FS is not set
+# CONFIG_AUXDISPLAY is not set
+# CONFIG_AX25_DAMA_SLAVE is not set
+# CONFIG_AX25 is not set
+# CONFIG_AX88796 is not set
+# CONFIG_B3DFG is not set
+# CONFIG_B43 is not set
+# CONFIG_B43LEGACY is not set
+# CONFIG_B44 is not set
+# CONFIG_BACKLIGHT_LCD_SUPPORT is not set
+CONFIG_BASE_FULL=y
+# CONFIG_BASLER_EXCITE is not set
+# CONFIG_BATTERY_BQ27000_HDQ is not set
+# CONFIG_BATTERY_BQ27x00 is not set
+# CONFIG_BATTERY_DS2760 is not set
+# CONFIG_BATTERY_DS2782 is not set
+# CONFIG_BATTERY_MAX17040 is not set
+# CONFIG_BAYCOM_EPP is not set
+# CONFIG_BAYCOM_PAR is not set
+# CONFIG_BAYCOM_SER_FDX is not set
+# CONFIG_BAYCOM_SER_HDX is not set
+CONFIG_BCM43XX_DEBUG=y
+CONFIG_BCM43XX_DMA_AND_PIO_MODE=y
+# CONFIG_BCM43XX_DMA_MODE is not set
+CONFIG_BCM43XX_DMA=y
+# CONFIG_BCM43XX is not set
+# CONFIG_BCM43XX_PIO_MODE is not set
+CONFIG_BCM43XX_PIO=y
+# CONFIG_BEFS_FS is not set
+# CONFIG_BFS_FS is not set
+# CONFIG_BINARY_PRINTF is not set
+# CONFIG_BINFMT_AOUT is not set
+CONFIG_BINFMT_ELF=y
+# CONFIG_BINFMT_MISC is not set
+# CONFIG_BLINK is not set
+# CONFIG_BLK_CPQ_CISS_DA is not set
+# CONFIG_BLK_CPQ_DA is not set
+# CONFIG_BLK_DEV_3W_XXXX_RAID is not set
+# CONFIG_BLK_DEV_4DRIVES is not set
+# CONFIG_BLK_DEV_AEC62XX is not set
+# CONFIG_BLK_DEV_ALI14XX is not set
+# CONFIG_BLK_DEV_ALI15X3 is not set
+# CONFIG_BLK_DEV_AMD74XX is not set
+# CONFIG_BLK_DEV_ATIIXP is not set
+# CONFIG_BLK_DEV_BSG is not set
+# CONFIG_BLK_DEV_CMD640 is not set
+# CONFIG_BLK_DEV_CMD64X is not set
+# CONFIG_BLK_DEV_COW_COMMON is not set
+# CONFIG_BLK_DEV_CRYPTOLOOP is not set
+# CONFIG_BLK_DEV_CS5520 is not set
+# CONFIG_BLK_DEV_CS5530 is not set
+# CONFIG_BLK_DEV_CS5535 is not set
+# CONFIG_BLK_DEV_CS5536 is not set
+# CONFIG_BLK_DEV_CY82C693 is not set
+# CONFIG_BLK_DEV_DAC960 is not set
+# CONFIG_BLK_DEV_DELKIN is not set
+# CONFIG_BLK_DEV_DTC2278 is not set
+# CONFIG_BLK_DEV_FD is not set
+# CONFIG_BLK_DEV_GENERIC is not set
+# CONFIG_BLK_DEV_HD_IDE is not set
+# CONFIG_BLK_DEV_HD is not set
+# CONFIG_BLK_DEV_HD_ONLY is not set
+# CONFIG_BLK_DEV_HPT34X is not set
+# CONFIG_BLK_DEV_HPT366 is not set
+# CONFIG_BLK_DEV_HT6560B is not set
+# CONFIG_BLK_DEV_IDEACPI is not set
+# CONFIG_BLK_DEV_IDECD is not set
+# CONFIG_BLK_DEV_IDECS is not set
+# CONFIG_BLK_DEV_IDEDMA_FORCED is not set
+# CONFIG_BLK_DEV_IDEFLOPPY is not set
+# CONFIG_BLK_DEV_IDEPCI is not set
+# CONFIG_BLK_DEV_IDEPNP is not set
+# CONFIG_BLK_DEV_IDE_SATA is not set
+# CONFIG_BLK_DEV_IDESCSI is not set
+# CONFIG_BLK_DEV_IDETAPE is not set
+CONFIG_BLK_DEV_INITRD=y
+# CONFIG_BLK_DEV_INTEGRITY is not set
+# CONFIG_BLK_DEV_IO_TRACE is not set
+# CONFIG_BLK_DEV_IT8172 is not set
+# CONFIG_BLK_DEV_IT8213 is not set
+# CONFIG_BLK_DEV_IT821X is not set
+# CONFIG_BLK_DEV_JMICRON is not set
+# CONFIG_BLK_DEV_LOOP is not set
+# CONFIG_BLK_DEV_NBD is not set
+# CONFIG_BLK_DEV_NS87415 is not set
+# CONFIG_BLK_DEV_OFFBOARD is not set
+# CONFIG_BLK_DEV_OPTI621 is not set
+# CONFIG_BLK_DEV_PDC202XX_NEW is not set
+# CONFIG_BLK_DEV_PDC202XX_OLD is not set
+# CONFIG_BLK_DEV_PIIX is not set
+# CONFIG_BLK_DEV_PLATFORM is not set
+# CONFIG_BLK_DEV_QD65XX is not set
+# CONFIG_BLK_DEV_RAM is not set
+# CONFIG_BLK_DEV_RZ1000 is not set
+# CONFIG_BLK_DEV_SC1200 is not set
+# CONFIG_BLK_DEV_SD is not set
+# CONFIG_BLK_DEV_SIIMAGE is not set
+# CONFIG_BLK_DEV_SIS5513 is not set
+# CONFIG_BLK_DEV_SL82C105 is not set
+# CONFIG_BLK_DEV_SLC90E66 is not set
+# CONFIG_BLK_DEV_SR is not set
+# CONFIG_BLK_DEV_SVWKS is not set
+# CONFIG_BLK_DEV_SX8 is not set
+# CONFIG_BLK_DEV_TC86C001 is not set
+# CONFIG_BLK_DEV_TRIFLEX is not set
+# CONFIG_BLK_DEV_TRM290 is not set
+# CONFIG_BLK_DEV_UB is not set
+# CONFIG_BLK_DEV_UMC8672 is not set
+# CONFIG_BLK_DEV_UMEM is not set
+# CONFIG_BLK_DEV_VIA82CXXX is not set
+# CONFIG_BLK_DEV_XIP is not set
+CONFIG_BLK_DEV=y
+CONFIG_BLOCK=y
+# CONFIG_BNX2 is not set
+# CONFIG_BONDING is not set
+# CONFIG_BOOT_TRACER is not set
+# CONFIG_BPQETHER is not set
+# CONFIG_BRIDGE_EBT_802_3 is not set
+# CONFIG_BRIDGE_EBT_AMONG is not set
+# CONFIG_BRIDGE_EBT_ARP is not set
+# CONFIG_BRIDGE_EBT_ARPREPLY is not set
+# CONFIG_BRIDGE_EBT_BROUTE is not set
+# CONFIG_BRIDGE_EBT_DNAT is not set
+# CONFIG_BRIDGE_EBT_IP6 is not set
+# CONFIG_BRIDGE_EBT_IP is not set
+# CONFIG_BRIDGE_EBT_LIMIT is not set
+# CONFIG_BRIDGE_EBT_LOG is not set
+# CONFIG_BRIDGE_EBT_MARK is not set
+# CONFIG_BRIDGE_EBT_MARK_T is not set
+# CONFIG_BRIDGE_EBT_NFLOG is not set
+# CONFIG_BRIDGE_EBT_PKTTYPE is not set
+# CONFIG_BRIDGE_EBT_REDIRECT is not set
+# CONFIG_BRIDGE_EBT_SNAT is not set
+# CONFIG_BRIDGE_EBT_STP is not set
+# CONFIG_BRIDGE_EBT_T_FILTER is not set
+# CONFIG_BRIDGE_EBT_T_NAT is not set
+# CONFIG_BRIDGE_EBT_ULOG is not set
+# CONFIG_BRIDGE_EBT_VLAN is not set
+# CONFIG_BRIDGE_NETFILTER is not set
+# CONFIG_BRIDGE_NF_EBTABLES is not set
+CONFIG_BRIDGE=y
+# CONFIG_BROADCOM_PHY is not set
+CONFIG_BROKEN_ON_SMP=y
+# CONFIG_BSD_DISKLABEL is not set
+# CONFIG_BSD_PROCESS_ACCT_V3 is not set
+CONFIG_BSD_PROCESS_ACCT=y
+# CONFIG_BT_BNEP is not set
+CONFIG_BT_BNEP_MC_FILTER=y
+CONFIG_BT_BNEP_PROTO_FILTER=y
+# CONFIG_BT_CMTP is not set
+# CONFIG_BT_HCIBCM203X is not set
+# CONFIG_BT_HCIBFUSB is not set
+# CONFIG_BT_HCIBLUECARD is not set
+# CONFIG_BT_HCIBPA10X is not set
+# CONFIG_BT_HCIBT3C is not set
+# CONFIG_BT_HCIBTSDIO is not set
+# CONFIG_BT_HCIBTUART is not set
+# CONFIG_BT_HCIBTUSB is not set
+# CONFIG_BT_HCIDTL1 is not set
+CONFIG_BT_HCIUART_BCSP=y
+CONFIG_BT_HCIUART_H4=y
+# CONFIG_BT_HCIUART is not set
+# CONFIG_BT_HCIUART_LL is not set
+# CONFIG_BT_HCIUSB is not set
+CONFIG_BT_HCIUSB_SCO=y
+# CONFIG_BT_HCIVHCI is not set
+# CONFIG_BT_HIDP is not set
+# CONFIG_BT is not set
+# CONFIG_BT_L2CAP is not set
+# CONFIG_BT_RFCOMM is not set
+CONFIG_BT_RFCOMM_TTY=y
+# CONFIG_BTRFS_FS is not set
+# CONFIG_BT_SCO is not set
+CONFIG_BUG=y
+# CONFIG_C2PORT is not set
+# CONFIG_CAN is not set
+# CONFIG_CAPI_AVM is not set
+# CONFIG_CAPI_EICON is not set
+# CONFIG_CAPI_TRACE is not set
+CONFIG_CARDBUS=y
+# CONFIG_CARDMAN_4000 is not set
+# CONFIG_CARDMAN_4040 is not set
+# CONFIG_CASSINI is not set
+# CONFIG_CB710_CORE is not set
+# CONFIG_CC_OPTIMIZE_FOR_SIZE is not set
+# CONFIG_CDROM_PKTCDVD is not set
+# CONFIG_CFG80211 is not set
+# CONFIG_CGROUPS is not set
+# CONFIG_CHELSIO_T1 is not set
+# CONFIG_CHELSIO_T3 is not set
+# CONFIG_CHR_DEV_OSST is not set
+# CONFIG_CHR_DEV_SCH is not set
+# CONFIG_CHR_DEV_SG is not set
+# CONFIG_CHR_DEV_ST is not set
+# CONFIG_CICADA_PHY is not set
+# CONFIG_CIFS_DEBUG2 is not set
+# CONFIG_CIFS_EXPERIMENTAL is not set
+# CONFIG_CIFS is not set
+CONFIG_CIFS_POSIX=y
+# CONFIG_CIFS_STATS2 is not set
+CONFIG_CIFS_STATS=y
+# CONFIG_CIFS_WEAK_PW_HASH is not set
+# CONFIG_CIFS_XATTR is not set
+CONFIG_CLASSIC_RCU=y
+CONFIG_CLS_U32_MARK=y
+CONFIG_CLS_U32_PERF=y
+CONFIG_CMDLINE=""
+# CONFIG_CNIC is not set
+# CONFIG_CODA_FS is not set
+# CONFIG_COMEDI is not set
+# CONFIG_COMPAT_BRK is not set
+CONFIG_COMPAT_NET_DEV_OPS=y
+# CONFIG_CONFIGFS_FS is not set
+# CONFIG_CONNECTOR is not set
+CONFIG_CONSTRUCTORS=y
+# CONFIG_CONTEXT_SWITCH_TRACER is not set
+# CONFIG_CORE_DUMP_DEFAULT_ELF_HEADERS is not set
+# CONFIG_CPU_DCACHE_DISABLE is not set
+# CONFIG_CPU_IDLE is not set
+# CONFIG_CRAMFS is not set
+# CONFIG_CRC16 is not set
+CONFIG_CRC32=y
+# CONFIG_CRC7 is not set
+# CONFIG_CRC_CCITT is not set
+# CONFIG_CRC_ITU_T is not set
+# CONFIG_CRC_T10DIF is not set
+CONFIG_CROSSCOMPILE=y
+# CONFIG_CRYPTO_AEAD is not set
+# CONFIG_CRYPTO_AES_586 is not set
+# CONFIG_CRYPTO_AES is not set
+CONFIG_CRYPTO_ALGAPI2=y
+CONFIG_CRYPTO_ALGAPI=y
+# CONFIG_CRYPTO_ANSI_CPRNG is not set
+# CONFIG_CRYPTO_ANUBIS is not set
+# CONFIG_CRYPTO_ARC4 is not set
+# CONFIG_CRYPTO_AUTHENC is not set
+# CONFIG_CRYPTO_BLKCIPHER is not set
+# CONFIG_CRYPTO_BLOWFISH is not set
+# CONFIG_CRYPTO_CAMELLIA is not set
+# CONFIG_CRYPTO_CAST5 is not set
+# CONFIG_CRYPTO_CAST6 is not set
+# CONFIG_CRYPTO_CBC is not set
+# CONFIG_CRYPTO_CCM is not set
+# CONFIG_CRYPTO_CRC32C_INTEL is not set
+# CONFIG_CRYPTO_CRC32C is not set
+# CONFIG_CRYPTO_CRYPTD is not set
+# CONFIG_CRYPTO_CTR is not set
+# CONFIG_CRYPTO_CTS is not set
+# CONFIG_CRYPTO_DEFLATE is not set
+# CONFIG_CRYPTO_DES is not set
+# CONFIG_CRYPTO_DEV_HIFN_795X is not set
+# CONFIG_CRYPTO_ECB is not set
+# CONFIG_CRYPTO_FCRYPT is not set
+# CONFIG_CRYPTO_FIPS is not set
+# CONFIG_CRYPTO_GCM is not set
+# CONFIG_CRYPTO_GF128MUL is not set
+# CONFIG_CRYPTO_GHASH is not set
+# CONFIG_CRYPTO_HASH is not set
+# CONFIG_CRYPTO_HMAC is not set
+# CONFIG_CRYPTO_HW is not set
+# CONFIG_CRYPTO_KHAZAD is not set
+# CONFIG_CRYPTO_LRW is not set
+# CONFIG_CRYPTO_LZO is not set
+# CONFIG_CRYPTO_MANAGER2 is not set
+# CONFIG_CRYPTO_MANAGER is not set
+# CONFIG_CRYPTO_MD4 is not set
+# CONFIG_CRYPTO_MD5 is not set
+# CONFIG_CRYPTO_MICHAEL_MIC is not set
+# CONFIG_CRYPTO_NULL is not set
+# CONFIG_CRYPTO_PCBC is not set
+CONFIG_CRYPTO_PCOMP=y
+# CONFIG_CRYPTO_PRNG is not set
+# CONFIG_CRYPTO_RMD128 is not set
+# CONFIG_CRYPTO_RMD160 is not set
+# CONFIG_CRYPTO_RMD256 is not set
+# CONFIG_CRYPTO_RMD320 is not set
+# CONFIG_CRYPTO_RNG is not set
+# CONFIG_CRYPTO_SALSA20_586 is not set
+# CONFIG_CRYPTO_SALSA20 is not set
+# CONFIG_CRYPTO_SEED is not set
+# CONFIG_CRYPTO_SEQIV is not set
+# CONFIG_CRYPTO_SERPENT is not set
+# CONFIG_CRYPTO_SHA1 is not set
+# CONFIG_CRYPTO_SHA256 is not set
+# CONFIG_CRYPTO_SHA512 is not set
+# CONFIG_CRYPTO_TEA is not set
+# CONFIG_CRYPTO_TEST is not set
+# CONFIG_CRYPTO_TGR192 is not set
+# CONFIG_CRYPTO_TWOFISH_586 is not set
+# CONFIG_CRYPTO_TWOFISH_COMMON is not set
+# CONFIG_CRYPTO_TWOFISH is not set
+CONFIG_CRYPTO_UNLZMA=y
+# CONFIG_CRYPTO_VMAC is not set
+# CONFIG_CRYPTO_WP512 is not set
+# CONFIG_CRYPTO_XCBC is not set
+# CONFIG_CRYPTO_XTS is not set
+CONFIG_CRYPTO=y
+CONFIG_CRYPTO_ZLIB=y
+# CONFIG_CUSE is not set
+# CONFIG_DAB is not set
+# CONFIG_DAVICOM_PHY is not set
+# CONFIG_DCB is not set
+CONFIG_DEBUG_FS=y
+# CONFIG_DEBUG_KERNEL is not set
+# CONFIG_DEBUG_MEMORY_INIT is not set
+# CONFIG_DECNET is not set
+CONFIG_DECOMPRESS_LZMA_NEEDED=y
+# CONFIG_DEFAULT_AS is not set
+# CONFIG_DEFAULT_BIC is not set
+# CONFIG_DEFAULT_CFQ is not set
+# CONFIG_DEFAULT_CUBIC is not set
+CONFIG_DEFAULT_DEADLINE=y
+# CONFIG_DEFAULT_HTCP is not set
+CONFIG_DEFAULT_IOSCHED="deadline"
+CONFIG_DEFAULT_MMAP_MIN_ADDR=4096
+# CONFIG_DEFAULT_NOOP is not set
+# CONFIG_DEFAULT_RENO is not set
+CONFIG_DEFAULT_TCP_CONG="westwood"
+# CONFIG_DEFAULT_VEGAS is not set
+CONFIG_DEFAULT_WESTWOOD=y
+CONFIG_DEFCONFIG_LIST="/lib/modules/$UNAME_RELEASE/.config"
+# CONFIG_DEVKMEM is not set
+# CONFIG_DEVPTS_MULTIPLE_INSTANCES is not set
+CONFIG_DEVTMPFS_MOUNT=y
+CONFIG_DEVTMPFS=y
+# CONFIG_DGRS is not set
+# CONFIG_DISCONTIGMEM_MANUAL is not set
+# CONFIG_DISPLAY_SUPPORT is not set
+# CONFIG_DL2K is not set
+# CONFIG_DLM is not set
+# CONFIG_DMADEVICES is not set
+# CONFIG_DMA_ENGINE is not set
+# CONFIG_DMASCC is not set
+# CONFIG_DMATEST is not set
+# CONFIG_DNET is not set
+# CONFIG_DNOTIFY is not set
+# CONFIG_DRAGONRISE_FF is not set
+# CONFIG_DRM is not set
+# CONFIG_DS1682 is not set
+# CONFIG_DST is not set
+# CONFIG_DTLK is not set
+# CONFIG_DUMMY is not set
+# CONFIG_DVB_CORE is not set
+# CONFIG_DVB is not set
+# CONFIG_DYNAMIC_DEBUG is not set
+# CONFIG_DYNAMIC_PRINTK_DEBUG is not set
+# CONFIG_E1000E is not set
+# CONFIG_E1000 is not set
+# CONFIG_E100 is not set
+# CONFIG_ECHO is not set
+# CONFIG_ECONET is not set
+# CONFIG_EEPRO100 is not set
+# CONFIG_EEPROM_93CX6 is not set
+# CONFIG_EEPROM_AT24 is not set
+# CONFIG_EEPROM_AT25 is not set
+# CONFIG_EEPROM_LEGACY is not set
+# CONFIG_EEPROM_MAX6875 is not set
+# CONFIG_EFI_PARTITION is not set
+# CONFIG_EFS_FS is not set
+# CONFIG_ELF_CORE is not set
+CONFIG_EMBEDDED=y
+# CONFIG_ENABLE_MUST_CHECK is not set
+CONFIG_ENABLE_WARN_DEPRECATED=y
+# CONFIG_ENC28J60 is not set
+# CONFIG_ENCLOSURE_SERVICES is not set
+# CONFIG_EPIC100 is not set
+CONFIG_EPOLL=y
+# CONFIG_EQUALIZER is not set
+# CONFIG_ET131X is not set
+# CONFIG_ETHOC is not set
+CONFIG_EVENTFD=y
+# CONFIG_EVENT_TRACER is not set
+CONFIG_EXPERIMENTAL=y
+# CONFIG_EXPORTFS is not set
+# CONFIG_EXT2_FS is not set
+# CONFIG_EXT2_FS_XATTR is not set
+# CONFIG_EXT2_FS_XIP is not set
+# CONFIG_EXT3_DEFAULTS_TO_ORDERED is not set
+# CONFIG_EXT3_FS is not set
+# CONFIG_EXT3_FS_XATTR is not set
+# CONFIG_EXT4DEV_FS is not set
+# CONFIG_EXT4_FS is not set
+CONFIG_EXTRA_FIRMWARE=""
+CONFIG_EXTRA_TARGETS=""
+# CONFIG_EZX_PCAP is not set
+# CONFIG_FAIR_GROUP_SCHED is not set
+CONFIG_FAT_DEFAULT_CODEPAGE=437
+CONFIG_FAT_DEFAULT_IOCHARSET="iso8859-1"
+# CONFIG_FAT_FS is not set
+# CONFIG_FB_3DFX is not set
+# CONFIG_FB_ARC is not set
+# CONFIG_FB_ARK is not set
+# CONFIG_FB_ASILIANT is not set
+# CONFIG_FB_ATY128 is not set
+# CONFIG_FB_ATY is not set
+# CONFIG_FB_BACKLIGHT is not set
+# CONFIG_FB_BOOT_VESA_SUPPORT is not set
+# CONFIG_FB_BROADSHEET is not set
+# CONFIG_FB_CARMINE is not set
+# CONFIG_FB_CFB_COPYAREA is not set
+# CONFIG_FB_CFB_FILLRECT is not set
+# CONFIG_FB_CFB_IMAGEBLIT is not set
+# CONFIG_FB_CFB_REV_PIXELS_IN_BYTE is not set
+# CONFIG_FB_CIRRUS is not set
+# CONFIG_FB_CYBER2000 is not set
+# CONFIG_FB_DDC is not set
+# CONFIG_FB_EARLYSUSPEND is not set
+# CONFIG_FB_FOREIGN_ENDIAN is not set
+# CONFIG_FB_GEODE is not set
+# CONFIG_FB_GOLDFISH is not set
+# CONFIG_FB_IBM_GXT4500 is not set
+# CONFIG_FB_IMSTT is not set
+# CONFIG_FB is not set
+# CONFIG_FB_KYRO is not set
+# CONFIG_FB_MACMODES is not set
+# CONFIG_FB_MATROX is not set
+# CONFIG_FB_MB862XX is not set
+# CONFIG_FB_METRONOME is not set
+# CONFIG_FB_MODE_HELPERS is not set
+# CONFIG_FB_NEOMAGIC is not set
+# CONFIG_FB_NVIDIA is not set
+# CONFIG_FB_OF is not set
+# CONFIG_FB_PM2 is not set
+# CONFIG_FB_PM3 is not set
+# CONFIG_FB_PS3 is not set
+# CONFIG_FB_PXA is not set
+# CONFIG_FB_RADEON is not set
+# CONFIG_FB_RIVA is not set
+# CONFIG_FB_S1D13XXX is not set
+# CONFIG_FB_S3 is not set
+# CONFIG_FB_SAVAGE is not set
+# CONFIG_FB_SIS is not set
+# CONFIG_FB_SVGALIB is not set
+# CONFIG_FB_SYS_COPYAREA is not set
+# CONFIG_FB_SYS_FILLRECT is not set
+# CONFIG_FB_SYS_FOPS is not set
+# CONFIG_FB_SYS_IMAGEBLIT is not set
+# CONFIG_FB_TILEBLITTING is not set
+# CONFIG_FB_TRIDENT is not set
+# CONFIG_FB_VGA16 is not set
+# CONFIG_FB_VIA is not set
+# CONFIG_FB_VIRTUAL is not set
+# CONFIG_FB_VOODOO1 is not set
+# CONFIG_FB_VT8623 is not set
+# CONFIG_FCOE_FNIC is not set
+# CONFIG_FCOE is not set
+# CONFIG_FDDI is not set
+# CONFIG_FEALNX is not set
+CONFIG_FIB_RULES=y
+CONFIG_FILE_LOCKING=y
+# CONFIG_FIREWIRE is not set
+# CONFIG_FIRMWARE_IN_KERNEL is not set
+# CONFIG_FIXED_PHY is not set
+CONFIG_FLATMEM_MANUAL=y
+CONFIG_FLATMEM=y
+CONFIG_FLAT_NODE_MEM_MAP=y
+# CONFIG_FORCEDETH is not set
+CONFIG_FRAME_WARN=1024
+# CONFIG_FREEZER is not set
+# CONFIG_FSCACHE is not set
+CONFIG_FSNOTIFY=y
+# CONFIG_FS_POSIX_ACL is not set
+# CONFIG_FTL is not set
+# CONFIG_FTRACE is not set
+# CONFIG_FUNCTION_TRACER is not set
+# CONFIG_FUSE_FS is not set
+# CONFIG_FUSION_FC is not set
+# CONFIG_FUSION is not set
+# CONFIG_FUSION_SAS is not set
+# CONFIG_FUSION_SPI is not set
+CONFIG_FUTEX=y
+CONFIG_FW_LOADER=y
+CONFIG_GACT_PROB=y
+# CONFIG_GAMEPORT is not set
+# CONFIG_GCOV_KERNEL is not set
+CONFIG_GENERIC_CALIBRATE_DELAY=y
+CONFIG_GENERIC_HARDIRQS=y
+CONFIG_GENERIC_HWEIGHT=y
+CONFIG_GENERIC_IRQ_PROBE=y
+CONFIG_GENERIC_TIME=y
+# CONFIG_GFS2_FS is not set
+# CONFIG_GPIO_BT8XX is not set
+# CONFIG_GPIO_DEVICE is not set
+# CONFIG_GPIO_LANGWELL is not set
+# CONFIG_GPIOLIB is not set
+# CONFIG_GPIO_MAX7301 is not set
+# CONFIG_GPIO_MAX732X is not set
+# CONFIG_GPIO_MCP23S08 is not set
+# CONFIG_GPIO_PCA953X is not set
+# CONFIG_GPIO_PCF857X is not set
+# CONFIG_GPIO_SYSFS is not set
+# CONFIG_GPIO_XILINX is not set
+# CONFIG_GREENASIA_FF is not set
+# CONFIG_GROUP_SCHED is not set
+# CONFIG_HAMACHI is not set
+CONFIG_HAMRADIO=y
+# CONFIG_HAPPYMEAL is not set
+# CONFIG_HAVE_AOUT is not set
+CONFIG_HAVE_MLOCKED_PAGE_BIT=y
+CONFIG_HAVE_MLOCK=y
+# CONFIG_HDLC_CISCO is not set
+# CONFIG_HDLC_FR is not set
+# CONFIG_HDLC is not set
+# CONFIG_HDLC_PPP is not set
+# CONFIG_HDLC_RAW_ETH is not set
+# CONFIG_HDLC_RAW is not set
+# CONFIG_HEADERS_CHECK is not set
+# CONFIG_HECI is not set
+# CONFIG_HERMES is not set
+# CONFIG_HFS_FS is not set
+# CONFIG_HFSPLUS_FS is not set
+# CONFIG_HID_A4TECH is not set
+# CONFIG_HID_APPLE is not set
+# CONFIG_HID_BELKIN is not set
+# CONFIG_HID_BRIGHT is not set
+# CONFIG_HID_CHERRY is not set
+# CONFIG_HID_CHICONY is not set
+# CONFIG_HID_COMPAT is not set
+# CONFIG_HID_CYPRESS is not set
+# CONFIG_HID_DEBUG is not set
+# CONFIG_HID_DELL is not set
+# CONFIG_HID_EZKEY is not set
+# CONFIG_HID_FF is not set
+# CONFIG_HID_GYRATION is not set
+# CONFIG_HID is not set
+# CONFIG_HID_KENSINGTON is not set
+# CONFIG_HID_KYE is not set
+# CONFIG_HID_LOGITECH is not set
+# CONFIG_HID_MICROSOFT is not set
+# CONFIG_HID_MONTEREY is not set
+# CONFIG_HID_NTRIG is not set
+# CONFIG_HID_PANTHERLORD is not set
+# CONFIG_HID_PETALYNX is not set
+# CONFIG_HID_PID is not set
+# CONFIG_HIDRAW is not set
+# CONFIG_HID_SAMSUNG is not set
+# CONFIG_HID_SONY is not set
+# CONFIG_HID_SUNPLUS is not set
+# CONFIG_HID_SUPPORT is not set
+# CONFIG_HID_TOPSEED is not set
+# CONFIG_HIGHMEM is not set
+CONFIG_HIGH_RES_TIMERS=y
+# CONFIG_HIPPI is not set
+# CONFIG_HOSTAP_CS is not set
+# CONFIG_HOSTAP is not set
+# CONFIG_HOSTAP_PCI is not set
+# CONFIG_HOSTAP_PLX is not set
+# CONFIG_HOTPLUG_CPU is not set
+# CONFIG_HOTPLUG_PCI is not set
+CONFIG_HOTPLUG=y
+# CONFIG_HP100 is not set
+# CONFIG_HPFS_FS is not set
+# CONFIG_HP_ILO is not set
+# CONFIG_HTC_EGPIO is not set
+# CONFIG_HTC_PASIC3 is not set
+# CONFIG_HUGETLB_PAGE is not set
+# CONFIG_HVC_UDBG is not set
+# CONFIG_HWMON is not set
+# CONFIG_HWMON_VID is not set
+# CONFIG_HW_RANDOM_AMD is not set
+# CONFIG_HW_RANDOM_GEODE is not set
+# CONFIG_HW_RANDOM_INTEL is not set
+# CONFIG_HW_RANDOM_TIMERIOMEM is not set
+# CONFIG_HW_RANDOM_VIA is not set
+CONFIG_HZ=100
+# CONFIG_HZ_1000 is not set
+CONFIG_HZ_100=y
+# CONFIG_HZ_1024 is not set
+# CONFIG_HZ_128 is not set
+# CONFIG_HZ_250 is not set
+# CONFIG_HZ_256 is not set
+# CONFIG_HZ_300 is not set
+# CONFIG_HZ_48 is not set
+# CONFIG_I2C_ALGOBIT is not set
+# CONFIG_I2C_ALGOPCA is not set
+# CONFIG_I2C_ALGOPCF is not set
+# CONFIG_I2C_ALI1535 is not set
+# CONFIG_I2C_ALI1563 is not set
+# CONFIG_I2C_ALI15X3 is not set
+# CONFIG_I2C_AMD756 is not set
+# CONFIG_I2C_AMD8111 is not set
+# CONFIG_I2C_CHARDEV is not set
+# CONFIG_I2C_COMPAT is not set
+# CONFIG_I2C_DEBUG_ALGO is not set
+# CONFIG_I2C_DEBUG_BUS is not set
+# CONFIG_I2C_DEBUG_CHIP is not set
+# CONFIG_I2C_DEBUG_CORE is not set
+# CONFIG_I2C_ELEKTOR is not set
+# CONFIG_I2C_GPIO is not set
+# CONFIG_I2C_HELPER_AUTO is not set
+# CONFIG_I2C_I801 is not set
+# CONFIG_I2C_I810 is not set
+# CONFIG_I2C_IBM_IIC is not set
+# CONFIG_I2C_ISCH is not set
+# CONFIG_I2C_MPC is not set
+# CONFIG_I2C_NFORCE2 is not set
+# CONFIG_I2C_OCORES is not set
+# CONFIG_I2C_PARPORT_LIGHT is not set
+# CONFIG_I2C_PCA_ISA is not set
+# CONFIG_I2C_PCA_PLATFORM is not set
+# CONFIG_I2C_PIIX4 is not set
+# CONFIG_I2C_PROSAVAGE is not set
+# CONFIG_I2C_SAVAGE4 is not set
+# CONFIG_I2C_SIMTEC is not set
+# CONFIG_I2C_SIS5595 is not set
+# CONFIG_I2C_SIS630 is not set
+# CONFIG_I2C_SIS96X is not set
+# CONFIG_I2C_STUB is not set
+# CONFIG_I2C_TAOS_EVM is not set
+# CONFIG_I2C_TINY_USB is not set
+# CONFIG_I2C_VIA is not set
+# CONFIG_I2C_VIAPRO is not set
+# CONFIG_I2C_VOODOO3 is not set
+# CONFIG_I2O is not set
+# CONFIG_I82092 is not set
+# CONFIG_I82365 is not set
+# CONFIG_IBM_ASM is not set
+# CONFIG_IBM_NEW_EMAC_EMAC4 is not set
+# CONFIG_IBM_NEW_EMAC_MAL_CLR_ICINTSTAT is not set
+# CONFIG_IBM_NEW_EMAC_MAL_COMMON_ERR is not set
+# CONFIG_IBM_NEW_EMAC_NO_FLOW_CTRL is not set
+# CONFIG_IBM_NEW_EMAC_RGMII is not set
+# CONFIG_IBM_NEW_EMAC_TAH is not set
+# CONFIG_IBM_NEW_EMAC_ZMII is not set
+# CONFIG_ICPLUS_PHY is not set
+# CONFIG_ICS932S401 is not set
+# CONFIG_IDEDISK_MULTI_MODE is not set
+# CONFIG_IDEDMA_IVB is not set
+# CONFIG_IDEDMA_ONLYDISK is not set
+# CONFIG_IDE_GD is not set
+# CONFIG_IDE is not set
+CONFIG_IDE_MAX_HWIFS=4
+# CONFIG_IDEPCI_SHARE_IRQ is not set
+# CONFIG_IDE_PHISON is not set
+CONFIG_IDE_PROC_FS=y
+# CONFIG_IDE_TASK_IOCTL is not set
+# CONFIG_IEEE1394_DV1394 is not set
+# CONFIG_IEEE1394_ETH1394 is not set
+# CONFIG_IEEE1394 is not set
+# CONFIG_IEEE1394_OHCI1394 is not set
+# CONFIG_IEEE1394_PCILYNX is not set
+# CONFIG_IEEE1394_RAWIO is not set
+# CONFIG_IEEE1394_VERBOSEDEBUG is not set
+# CONFIG_IEEE1394_VIDEO1394 is not set
+# CONFIG_IEEE80211_CRYPT_CCMP is not set
+# CONFIG_IEEE80211_CRYPT_TKIP is not set
+# CONFIG_IEEE80211_CRYPT_WEP is not set
+# CONFIG_IEEE80211_DEBUG is not set
+# CONFIG_IEEE80211 is not set
+# CONFIG_IEEE80211_SOFTMAC_DEBUG is not set
+# CONFIG_IEEE80211_SOFTMAC is not set
+# CONFIG_IEEE802154 is not set
+# CONFIG_IFB is not set
+# CONFIG_IGB is not set
+# CONFIG_IGBVF is not set
+# CONFIG_IIO is not set
+# CONFIG_IKCONFIG is not set
+# CONFIG_IKCONFIG_PROC is not set
+# CONFIG_IMAGE_CMDLINE_HACK is not set
+# CONFIG_IMQ_BEHAVIOR_AA is not set
+# CONFIG_IMQ_BEHAVIOR_AB is not set
+# CONFIG_IMQ_BEHAVIOR_BA is not set
+# CONFIG_IMQ_BEHAVIOR_BB is not set
+# CONFIG_IMQ is not set
+CONFIG_IMQ_NUM_DEVS=2
+# CONFIG_INET6_AH is not set
+# CONFIG_INET6_ESP is not set
+# CONFIG_INET6_IPCOMP is not set
+# CONFIG_INET6_TUNNEL is not set
+# CONFIG_INET6_XFRM_MODE_BEET is not set
+# CONFIG_INET6_XFRM_MODE_ROUTEOPTIMIZATION is not set
+# CONFIG_INET6_XFRM_MODE_TRANSPORT is not set
+# CONFIG_INET6_XFRM_MODE_TUNNEL is not set
+# CONFIG_INET6_XFRM_TUNNEL is not set
+# CONFIG_INET_AH is not set
+# CONFIG_INET_DIAG is not set
+# CONFIG_INET_ESP is not set
+# CONFIG_INET_IPCOMP is not set
+# CONFIG_INET_LRO is not set
+# CONFIG_INET_TCP_DIAG is not set
+# CONFIG_INET_TUNNEL is not set
+# CONFIG_INET_XFRM_MODE_BEET is not set
+# CONFIG_INET_XFRM_MODE_TRANSPORT is not set
+# CONFIG_INET_XFRM_MODE_TUNNEL is not set
+# CONFIG_INET_XFRM_TUNNEL is not set
+CONFIG_INET=y
+# CONFIG_INFINIBAND is not set
+# CONFIG_INFTL is not set
+CONFIG_INIT_ENV_ARG_LIMIT=32
+# CONFIG_INITRAMFS_COMPRESSION_BZIP2 is not set
+# CONFIG_INITRAMFS_COMPRESSION_GZIP is not set
+# CONFIG_INITRAMFS_COMPRESSION_LZMA is not set
+CONFIG_INITRAMFS_COMPRESSION_NONE=y
+# CONFIG_INOTIFY is not set
+# CONFIG_INOTIFY_USER is not set
+# CONFIG_INPUT_APANEL is not set
+# CONFIG_INPUT_ATI_REMOTE2 is not set
+# CONFIG_INPUT_ATI_REMOTE is not set
+# CONFIG_INPUT_ATLAS_BTNS is not set
+# CONFIG_INPUT_CM109 is not set
+# CONFIG_INPUT_EVBUG is not set
+# CONFIG_INPUT_EVDEV is not set
+# CONFIG_INPUT_FF_MEMLESS is not set
+# CONFIG_INPUT_GPIO is not set
+# CONFIG_INPUT_GPIO_ROTARY_ENCODER is not set
+# CONFIG_INPUT is not set
+# CONFIG_INPUT_JOYDEV is not set
+# CONFIG_INPUT_JOYSTICK is not set
+# CONFIG_INPUT_KEYBOARD is not set
+# CONFIG_INPUT_KEYSPAN_REMOTE is not set
+# CONFIG_INPUT_MIMIO is not set
+CONFIG_INPUT_MISC=y
+# CONFIG_INPUT_MOUSEDEV is not set
+# CONFIG_INPUT_MOUSE is not set
+# CONFIG_INPUT_PCSPKR is not set
+# CONFIG_INPUT_POLLDEV is not set
+# CONFIG_INPUT_POWERMATE is not set
+# CONFIG_INPUT_TABLET is not set
+# CONFIG_INPUT_TOUCHSCREEN is not set
+# CONFIG_INPUT_TSDEV is not set
+# CONFIG_INPUT_UINPUT is not set
+# CONFIG_INPUT_WISTRON_BTNS is not set
+# CONFIG_INSTRUMENTATION is not set
+# CONFIG_IOSCHED_AS is not set
+# CONFIG_IOSCHED_CFQ is not set
+CONFIG_IOSCHED_DEADLINE=y
+CONFIG_IOSCHED_NOOP=y
+# CONFIG_IP1000 is not set
+# CONFIG_IP175C_PHY is not set
+# CONFIG_IP6_NF_FILTER is not set
+# CONFIG_IP6_NF_IPTABLES is not set
+# CONFIG_IP6_NF_MANGLE is not set
+# CONFIG_IP6_NF_MATCH_AH is not set
+# CONFIG_IP6_NF_MATCH_EUI64 is not set
+# CONFIG_IP6_NF_MATCH_FRAG is not set
+# CONFIG_IP6_NF_MATCH_HL is not set
+# CONFIG_IP6_NF_MATCH_IPV6HEADER is not set
+# CONFIG_IP6_NF_MATCH_LIMIT is not set
+# CONFIG_IP6_NF_MATCH_MH is not set
+# CONFIG_IP6_NF_MATCH_OPTS is not set
+# CONFIG_IP6_NF_MATCH_OWNER is not set
+# CONFIG_IP6_NF_MATCH_RT is not set
+# CONFIG_IP6_NF_QUEUE is not set
+# CONFIG_IP6_NF_RAW is not set
+# CONFIG_IP6_NF_TARGET_HL is not set
+# CONFIG_IP6_NF_TARGET_IMQ is not set
+# CONFIG_IP6_NF_TARGET_LOG is not set
+# CONFIG_IP6_NF_TARGET_REJECT is not set
+# CONFIG_IP6_NF_TARGET_ROUTE is not set
+CONFIG_IP_ADVANCED_ROUTER=y
+# CONFIG_IPC_NS is not set
+# CONFIG_IP_DCCP is not set
+CONFIG_IP_FIB_HASH=y
+# CONFIG_IP_FIB_TRIE is not set
+# CONFIG_IPMI_HANDLER is not set
+CONFIG_IP_MROUTE=y
+CONFIG_IP_MULTICAST=y
+CONFIG_IP_MULTIPLE_TABLES=y
+# CONFIG_IP_NF_AMANDA is not set
+# CONFIG_IP_NF_ARPFILTER is not set
+# CONFIG_IP_NF_ARP_MANGLE is not set
+# CONFIG_IP_NF_ARPTABLES is not set
+# CONFIG_IP_NF_CONNTRACK_EVENTS is not set
+CONFIG_IP_NF_CONNTRACK_MARK=y
+CONFIG_IP_NF_CONNTRACK=y
+CONFIG_IP_NF_CT_ACCT=y
+# CONFIG_IP_NF_CT_PROTO_SCTP is not set
+# CONFIG_IP_NF_FILTER is not set
+# CONFIG_IP_NF_FTP is not set
+# CONFIG_IP_NF_H323 is not set
+# CONFIG_IP_NF_IPTABLES is not set
+# CONFIG_IP_NF_IRC is not set
+# CONFIG_IP_NF_MANGLE is not set
+# CONFIG_IP_NF_MATCH_ADDRTYPE is not set
+# CONFIG_IP_NF_MATCH_AH is not set
+# CONFIG_IP_NF_MATCH_ECN is not set
+# CONFIG_IP_NF_MATCH_HASHLIMIT is not set
+# CONFIG_IP_NF_MATCH_IPP2P is not set
+# CONFIG_IP_NF_MATCH_OWNER is not set
+# CONFIG_IP_NF_MATCH_RECENT is not set
+# CONFIG_IP_NF_MATCH_SET is not set
+# CONFIG_IP_NF_MATCH_TIME is not set
+# CONFIG_IP_NF_MATCH_TOS is not set
+# CONFIG_IP_NF_MATCH_TTL is not set
+# CONFIG_IP_NF_NAT_AMANDA is not set
+# CONFIG_IP_NF_NAT_FTP is not set
+# CONFIG_IP_NF_NAT_H323 is not set
+# CONFIG_IP_NF_NAT_IRC is not set
+CONFIG_IP_NF_NAT_NEEDED=y
+# CONFIG_IP_NF_NAT_PPTP is not set
+# CONFIG_IP_NF_NAT_SIP is not set
+# CONFIG_IP_NF_NAT_SNMP_BASIC is not set
+# CONFIG_IP_NF_NAT_TFTP is not set
+CONFIG_IP_NF_NAT=y
+# CONFIG_IP_NF_NETBIOS_NS is not set
+# CONFIG_IP_NF_PPTP is not set
+# CONFIG_IP_NF_QUEUE is not set
+# CONFIG_IP_NF_RAW is not set
+# CONFIG_IP_NF_SECURITY is not set
+CONFIG_IP_NF_SET_HASHSIZE=1024
+# CONFIG_IP_NF_SET_IPHASH is not set
+# CONFIG_IP_NF_SET_IPMAP is not set
+# CONFIG_IP_NF_SET_IPPORTHASH is not set
+# CONFIG_IP_NF_SET_IPTREE is not set
+# CONFIG_IP_NF_SET_IPTREEMAP is not set
+# CONFIG_IP_NF_SET is not set
+# CONFIG_IP_NF_SET_MACIPMAP is not set
+CONFIG_IP_NF_SET_MAX=256
+# CONFIG_IP_NF_SET_NETHASH is not set
+# CONFIG_IP_NF_SET_PORTMAP is not set
+# CONFIG_IP_NF_SIP is not set
+# CONFIG_IP_NF_TARGET_CLUSTERIP is not set
+# CONFIG_IP_NF_TARGET_ECN is not set
+# CONFIG_IP_NF_TARGET_IMQ is not set
+# CONFIG_IP_NF_TARGET_LOG is not set
+# CONFIG_IP_NF_TARGET_MASQUERADE is not set
+# CONFIG_IP_NF_TARGET_NETMAP is not set
+# CONFIG_IP_NF_TARGET_REDIRECT is not set
+# CONFIG_IP_NF_TARGET_REJECT is not set
+# CONFIG_IP_NF_TARGET_ROUTE is not set
+# CONFIG_IP_NF_TARGET_SAME is not set
+# CONFIG_IP_NF_TARGET_SET is not set
+# CONFIG_IP_NF_TARGET_TOS is not set
+# CONFIG_IP_NF_TARGET_TTL is not set
+# CONFIG_IP_NF_TARGET_ULOG is not set
+# CONFIG_IP_NF_TFTP is not set
+# CONFIG_IP_PIMSM_V1 is not set
+# CONFIG_IP_PIMSM_V2 is not set
+# CONFIG_IP_PNP is not set
+CONFIG_IP_ROUTE_FWMARK=y
+CONFIG_IP_ROUTE_MULTIPATH_CACHED=y
+# CONFIG_IP_ROUTE_MULTIPATH_DRR is not set
+# CONFIG_IP_ROUTE_MULTIPATH_RANDOM is not set
+# CONFIG_IP_ROUTE_MULTIPATH_RR is not set
+# CONFIG_IP_ROUTE_MULTIPATH_WRANDOM is not set
+CONFIG_IP_ROUTE_MULTIPATH=y
+CONFIG_IP_ROUTE_VERBOSE=y
+# CONFIG_IP_SCTP is not set
+CONFIG_IPSEC_NAT_TRAVERSAL=y
+# CONFIG_IPV6 is not set
+# CONFIG_IPV6_MIP6 is not set
+# CONFIG_IPV6_MROUTE is not set
+# CONFIG_IPV6_MULTIPLE_TABLES is not set
+CONFIG_IPV6_NDISC_NODETYPE=y
+# CONFIG_IPV6_OPTIMISTIC_DAD is not set
+# CONFIG_IPV6_PRIVACY is not set
+# CONFIG_IPV6_ROUTE_INFO is not set
+# CONFIG_IPV6_ROUTER_PREF is not set
+# CONFIG_IPV6_SIT is not set
+# CONFIG_IPV6_TUNNEL is not set
+# CONFIG_IP_VS is not set
+# CONFIG_IPW2100_DEBUG is not set
+# CONFIG_IPW2100 is not set
+CONFIG_IPW2100_MONITOR=y
+# CONFIG_IPW2200_DEBUG is not set
+# CONFIG_IPW2200 is not set
+CONFIG_IPW2200_MONITOR=y
+# CONFIG_IPW2200_PROMISCUOUS is not set
+# CONFIG_IPW2200_QOS is not set
+# CONFIG_IPW2200_RADIOTAP is not set
+# CONFIG_IPWIRELESS is not set
+# CONFIG_IPX is not set
+# CONFIG_IRDA is not set
+# CONFIG_IRQSOFF_TRACER is not set
+# CONFIG_ISCSI_TCP is not set
+# CONFIG_ISDN_CAPI_CAPI20 is not set
+CONFIG_ISDN_CAPI_CAPIFS_BOOL=y
+# CONFIG_ISDN_CAPI_CAPIFS is not set
+# CONFIG_ISDN_CAPI is not set
+CONFIG_ISDN_CAPI_MIDDLEWARE=y
+# CONFIG_ISDN_DRV_AVMB1_VERBOSE_REASON is not set
+# CONFIG_ISDN_I4L is not set
+CONFIG_ISDN=y
+# CONFIG_ISL29003 is not set
+# CONFIG_ISO9660_FS is not set
+# CONFIG_IWL3945 is not set
+# CONFIG_IWLAGN is not set
+# CONFIG_IWLCORE is not set
+# CONFIG_IWLWIFI is not set
+# CONFIG_IWLWIFI_LEDS is not set
+# CONFIG_IXGB is not set
+# CONFIG_JBD2_DEBUG is not set
+# CONFIG_JBD_DEBUG is not set
+# CONFIG_JBD is not set
+# CONFIG_JFFS2_CMODE_FAVOURLZO is not set
+# CONFIG_JFFS2_CMODE_NONE is not set
+CONFIG_JFFS2_CMODE_PRIORITY=y
+# CONFIG_JFFS2_CMODE_SIZE is not set
+CONFIG_JFFS2_COMPRESSION_OPTIONS=y
+CONFIG_JFFS2_FS_DEBUG=0
+# CONFIG_JFFS2_FS_WBUF_VERIFY is not set
+CONFIG_JFFS2_FS_WRITEBUFFER=y
+# CONFIG_JFFS2_FS_XATTR is not set
+CONFIG_JFFS2_FS=y
+# CONFIG_JFFS2_LZO is not set
+CONFIG_JFFS2_RTIME=y
+# CONFIG_JFFS2_RUBIN is not set
+CONFIG_JFFS2_SUMMARY=y
+CONFIG_JFFS2_ZLIB=y
+# CONFIG_JFFS_FS is not set
+# CONFIG_JFS_DEBUG is not set
+# CONFIG_JFS_FS is not set
+# CONFIG_JFS_POSIX_ACL is not set
+# CONFIG_JFS_SECURITY is not set
+# CONFIG_JFS_STATISTICS is not set
+# CONFIG_JME is not set
+CONFIG_JOLIET=y
+# CONFIG_KALLSYMS_EXTRA_PASS is not set
+# CONFIG_KALLSYMS is not set
+# CONFIG_KARMA_PARTITION is not set
+# CONFIG_KEXEC is not set
+# CONFIG_KEYBOARD_LM8323 is not set
+# CONFIG_KEYS is not set
+# CONFIG_KMEMTRACE is not set
+CONFIG_KMOD=y
+# CONFIG_KPROBES is not set
+# CONFIG_KS8842 is not set
+# CONFIG_KS8851 is not set
+# CONFIG_KS8851_MLL is not set
+# CONFIG_KSM is not set
+# CONFIG_LANMEDIA is not set
+# CONFIG_LAPB is not set
+# CONFIG_LASAT is not set
+# CONFIG_LATENCYTOP is not set
+# CONFIG_LBDAF is not set
+# CONFIG_LBD is not set
+# CONFIG_LDM_PARTITION is not set
+# CONFIG_LEDS_ALIX is not set
+# CONFIG_LEDS_BD2802 is not set
+CONFIG_LEDS_CLASS=y
+# CONFIG_LEDS_DAC124S085 is not set
+CONFIG_LEDS_GPIO_PLATFORM=y
+# CONFIG_LEDS_LP3944 is not set
+# CONFIG_LEDS_LP5521 is not set
+# CONFIG_LEDS_PCA9532 is not set
+# CONFIG_LEDS_PCA955X is not set
+# CONFIG_LEDS_TRIGGER_BACKLIGHT is not set
+CONFIG_LEDS_TRIGGER_DEFAULT_ON=y
+# CONFIG_LEDS_TRIGGER_GPIO is not set
+CONFIG_LEDS_TRIGGER_HEARTBEAT=y
+# CONFIG_LEDS_TRIGGER_IDE_DISK is not set
+# CONFIG_LEDS_TRIGGER_MORSE is not set
+CONFIG_LEDS_TRIGGER_NETDEV=y
+CONFIG_LEDS_TRIGGERS=y
+CONFIG_LEDS_TRIGGER_TIMER=y
+# CONFIG_LEGACY_PTYS is not set
+# CONFIG_LIB80211_CRYPT_CCMP is not set
+# CONFIG_LIB80211_CRYPT_TKIP is not set
+# CONFIG_LIB80211_CRYPT_WEP is not set
+# CONFIG_LIB80211_DEBUG is not set
+# CONFIG_LIB80211 is not set
+# CONFIG_LIBCRC32C is not set
+# CONFIG_LIBERTAS is not set
+# CONFIG_LIBERTAS_THINFIRM is not set
+# CONFIG_LIBERTAS_USB is not set
+# CONFIG_LIBFC is not set
+# CONFIG_LIBFCOE is not set
+# CONFIG_LIBIPW_DEBUG is not set
+# CONFIG_LINE6_USB is not set
+# CONFIG_LLC2 is not set
+CONFIG_LLC=y
+CONFIG_LOCALVERSION=""
+# CONFIG_LOCALVERSION_AUTO is not set
+CONFIG_LOCKDEP_SUPPORT=y
+# CONFIG_LOCKD is not set
+CONFIG_LOCKD_V4=y
+CONFIG_LOG_BUF_SHIFT=14
+# CONFIG_LOGIRUMBLEPAD2_FF is not set
+# CONFIG_LOGITECH_FF is not set
+# CONFIG_LSF is not set
+# CONFIG_LSI_ET1011C_PHY is not set
+# CONFIG_LXT_PHY is not set
+CONFIG_MAC80211_DEFAULT_PS_VALUE=1
+CONFIG_MAC80211_DEFAULT_PS=y
+# CONFIG_MAC80211 is not set
+# CONFIG_MAC_EMUMOUSEBTN is not set
+# CONFIG_MAC_PARTITION is not set
+# CONFIG_MACVLAN is not set
+# CONFIG_MAGIC_SYSRQ is not set
+# CONFIG_MARKEINS is not set
+# CONFIG_MARKERS is not set
+# CONFIG_MARVELL_PHY is not set
+# CONFIG_MDIO_BITBANG is not set
+# CONFIG_MD is not set
+# CONFIG_ME4000 is not set
+# CONFIG_MEDIA_ATTACH is not set
+# CONFIG_MEDIA_SUPPORT is not set
+# CONFIG_MEDIA_TUNER_CUSTOMISE is not set
+# CONFIG_MEGARAID_LEGACY is not set
+# CONFIG_MEGARAID_NEWGEN is not set
+# CONFIG_MEGARAID_SAS is not set
+# CONFIG_MEILHAUS is not set
+# CONFIG_MEMSTICK is not set
+# CONFIG_MFD_ASIC3 is not set
+# CONFIG_MFD_CORE is not set
+# CONFIG_MFD_PCF50633 is not set
+# CONFIG_MFD_SM501 is not set
+# CONFIG_MFD_TC6387XB is not set
+# CONFIG_MFD_TC6393XB is not set
+# CONFIG_MFD_TMIO is not set
+# CONFIG_MFD_WM831X is not set
+# CONFIG_MFD_WM8350_I2C is not set
+# CONFIG_MFD_WM8400 is not set
+# CONFIG_MG_DISK is not set
+# CONFIG_MIGRATION is not set
+CONFIG_MII=y
+CONFIG_MINI_FO=y
+# CONFIG_MINIX_FS is not set
+# CONFIG_MINIX_SUBPARTITION is not set
+CONFIG_MISC_DEVICES=y
+CONFIG_MISC_FILESYSTEMS=y
+# CONFIG_MISDN_HFCPCI is not set
+# CONFIG_MISDN_HFCUSB is not set
+# CONFIG_MISDN is not set
+# CONFIG_MKISS is not set
+# CONFIG_MMC_ARMMMCI is not set
+CONFIG_MMC_BLOCK_BOUNCE=y
+# CONFIG_MMC_BLOCK is not set
+# CONFIG_MMC_CB710 is not set
+# CONFIG_MMC_DEBUG is not set
+# CONFIG_MMC is not set
+# CONFIG_MMC_S3C is not set
+# CONFIG_MMC_SDHCI is not set
+# CONFIG_MMC_SDRICOH_CS is not set
+# CONFIG_MMC_SPI is not set
+# CONFIG_MMC_TEST is not set
+# CONFIG_MMC_UNSAFE_RESUME is not set
+# CONFIG_MMC_VIA_SDMMC is not set
+CONFIG_MMU=y
+# CONFIG_MODULE_FORCE_LOAD is not set
+# CONFIG_MODULE_FORCE_UNLOAD is not set
+# CONFIG_MODULE_SRCVERSION_ALL is not set
+CONFIG_MODULES=y
+CONFIG_MODULE_UNLOAD=y
+# CONFIG_MODVERSIONS is not set
+# CONFIG_MOUSE_APPLETOUCH is not set
+# CONFIG_MOUSE_INPORT is not set
+# CONFIG_MOUSE_LOGIBM is not set
+# CONFIG_MOUSE_PC110PAD is not set
+# CONFIG_MOUSE_SYNAPTICS_I2C is not set
+# CONFIG_MSDOS_FS is not set
+CONFIG_MSDOS_PARTITION=y
+# CONFIG_MTD_ABSENT is not set
+# CONFIG_MTD_AFS_PARTS is not set
+# CONFIG_MTD_ALAUDA is not set
+# CONFIG_MTD_AR7_PARTS is not set
+# CONFIG_MTD_ARM_INTEGRATOR is not set
+CONFIG_MTD_BLKDEVS=y
+# CONFIG_MTD_BLOCK2MTD is not set
+CONFIG_MTD_BLOCK=y
+# CONFIG_MTD_CFI_ADV_OPTIONS is not set
+CONFIG_MTD_CFI_AMDSTD=y
+# CONFIG_MTD_CFI_BE_BYTE_SWAP is not set
+CONFIG_MTD_CFI_I1=y
+CONFIG_MTD_CFI_I2=y
+# CONFIG_MTD_CFI_I4 is not set
+# CONFIG_MTD_CFI_I8 is not set
+CONFIG_MTD_CFI_INTELEXT=y
+# CONFIG_MTD_CFI_LE_BYTE_SWAP is not set
+CONFIG_MTD_CFI_NOSWAP=y
+# CONFIG_MTD_CFI_STAA is not set
+CONFIG_MTD_CFI_UTIL=y
+CONFIG_MTD_CFI=y
+CONFIG_MTD_CHAR=y
+# CONFIG_MTD_CMDLINE_PARTS is not set
+CONFIG_MTD_COMPLEX_MAPPINGS=y
+# CONFIG_MTD_CONCAT is not set
+# CONFIG_MTD_DATAFLASH is not set
+# CONFIG_MTD_DEBUG is not set
+# CONFIG_MTD_DOC2000 is not set
+# CONFIG_MTD_DOC2001 is not set
+# CONFIG_MTD_DOC2001PLUS is not set
+CONFIG_MTD_GEN_PROBE=y
+# CONFIG_MTD_GPIO_ADDR is not set
+# CONFIG_MTD_INTEL_VR_NOR is not set
+# CONFIG_MTD_JEDECPROBE is not set
+# CONFIG_MTD_LPDDR is not set
+# CONFIG_MTD_M25P80 is not set
+# CONFIG_MTD_MAP_BANK_WIDTH_16 is not set
+CONFIG_MTD_MAP_BANK_WIDTH_1=y
+CONFIG_MTD_MAP_BANK_WIDTH_2=y
+# CONFIG_MTD_MAP_BANK_WIDTH_32 is not set
+CONFIG_MTD_MAP_BANK_WIDTH_4=y
+# CONFIG_MTD_MAP_BANK_WIDTH_8 is not set
+# CONFIG_MTD_MTDRAM is not set
+# CONFIG_MTD_MYLOADER_PARTS is not set
+# CONFIG_MTD_NAND_CAFE is not set
+# CONFIG_MTD_NAND_DISKONCHIP is not set
+# CONFIG_MTD_NAND_ECC_SMC is not set
+# CONFIG_MTD_NAND_GPIO is not set
+CONFIG_MTD_NAND_IDS=y
+# CONFIG_MTD_NAND is not set
+# CONFIG_MTD_NAND_MUSEUM_IDS is not set
+# CONFIG_MTD_NAND_NANDSIM is not set
+# CONFIG_MTD_NAND_PLATFORM is not set
+# CONFIG_MTD_NAND_VERIFY_WRITE is not set
+# CONFIG_MTD_ONENAND is not set
+# CONFIG_MTD_OOPS is not set
+# CONFIG_MTD_OTP is not set
+CONFIG_MTD_PARTITIONS=y
+# CONFIG_MTD_PCI is not set
+# CONFIG_MTD_PHRAM is not set
+# CONFIG_MTD_PHYSMAP_COMPAT is not set
+# CONFIG_MTD_PHYSMAP is not set
+# CONFIG_MTD_PLATRAM is not set
+# CONFIG_MTD_PMC551 is not set
+# CONFIG_MTD_RAM is not set
+CONFIG_MTD_REDBOOT_DIRECTORY_BLOCK=-1
+# CONFIG_MTD_REDBOOT_PARTS is not set
+# CONFIG_MTD_REDBOOT_PARTS_READONLY is not set
+# CONFIG_MTD_REDBOOT_PARTS_UNALLOCATED is not set
+# CONFIG_MTD_ROM is not set
+CONFIG_MTD_ROOTFS_ROOT_DEV=y
+CONFIG_MTD_ROOTFS_SPLIT=y
+# CONFIG_MTD_SLRAM is not set
+# CONFIG_MTD_TESTS is not set
+# CONFIG_MTD_UBI is not set
+CONFIG_MTD=y
+# CONFIG_MVSWITCH_PHY is not set
+# CONFIG_MWAVE is not set
+# CONFIG_MWL8K is not set
+# CONFIG_MYRI10GE is not set
+# CONFIG_NAMESPACES is not set
+# CONFIG_NATIONAL_PHY is not set
+# CONFIG_NCP_FS is not set
+# CONFIG_NE2K_PCI is not set
+# CONFIG_NEC_MARKEINS is not set
+# CONFIG_NET_9P is not set
+# CONFIG_NET_ACT_GACT is not set
+# CONFIG_NET_ACT_IPT is not set
+# CONFIG_NET_ACT_MIRRED is not set
+# CONFIG_NET_ACT_NAT is not set
+# CONFIG_NET_ACT_PEDIT is not set
+# CONFIG_NET_ACT_POLICE is not set
+# CONFIG_NET_ACT_SIMP is not set
+CONFIG_NET_ACT_SKBEDIT=y
+CONFIG_NET_CLS_ACT=y
+CONFIG_NET_CLS_BASIC=y
+# CONFIG_NET_CLS_FLOW is not set
+# CONFIG_NET_CLS_FW is not set
+CONFIG_NET_CLS_IND=y
+# CONFIG_NET_CLS_ROUTE4 is not set
+# CONFIG_NET_CLS_RSVP6 is not set
+# CONFIG_NET_CLS_RSVP is not set
+# CONFIG_NET_CLS_TCINDEX is not set
+# CONFIG_NET_CLS_U32 is not set
+CONFIG_NET_CLS=y
+# CONFIG_NETCONSOLE is not set
+# CONFIG_NETDEBUG is not set
+# CONFIG_NETDEV_10000 is not set
+CONFIG_NETDEV_1000=y
+CONFIG_NETDEVICES_MULTIQUEUE=y
+CONFIG_NETDEVICES=y
+# CONFIG_NET_DSA is not set
+# CONFIG_NET_EMATCH_CMP is not set
+# CONFIG_NET_EMATCH is not set
+# CONFIG_NET_EMATCH_META is not set
+# CONFIG_NET_EMATCH_NBYTE is not set
+CONFIG_NET_EMATCH_STACK=32
+# CONFIG_NET_EMATCH_TEXT is not set
+# CONFIG_NET_EMATCH_U32 is not set
+CONFIG_NET_ESTIMATOR=y
+CONFIG_NET_ETHERNET=y
+# CONFIG_NET_FC is not set
+CONFIG_NETFILTER_ADVANCED=y
+# CONFIG_NETFILTER_DEBUG is not set
+# CONFIG_NETFILTER_NETLINK is not set
+# CONFIG_NETFILTER_NETLINK_LOG is not set
+# CONFIG_NETFILTER_NETLINK_QUEUE is not set
+# CONFIG_NETFILTER_TPROXY is not set
+# CONFIG_NETFILTER_XTABLES is not set
+# CONFIG_NETFILTER_XT_MATCH_CLUSTER is not set
+# CONFIG_NETFILTER_XT_MATCH_COMMENT is not set
+# CONFIG_NETFILTER_XT_MATCH_CONNBYTES is not set
+# CONFIG_NETFILTER_XT_MATCH_CONNLIMIT is not set
+# CONFIG_NETFILTER_XT_MATCH_CONNMARK is not set
+# CONFIG_NETFILTER_XT_MATCH_CONNTRACK is not set
+# CONFIG_NETFILTER_XT_MATCH_DCCP is not set
+# CONFIG_NETFILTER_XT_MATCH_DSCP is not set
+# CONFIG_NETFILTER_XT_MATCH_ESP is not set
+# CONFIG_NETFILTER_XT_MATCH_HASHLIMIT is not set
+# CONFIG_NETFILTER_XT_MATCH_HELPER is not set
+# CONFIG_NETFILTER_XT_MATCH_HL is not set
+# CONFIG_NETFILTER_XT_MATCH_IPRANGE is not set
+# CONFIG_NETFILTER_XT_MATCH_LAYER7_DEBUG is not set
+# CONFIG_NETFILTER_XT_MATCH_LAYER7 is not set
+# CONFIG_NETFILTER_XT_MATCH_LENGTH is not set
+# CONFIG_NETFILTER_XT_MATCH_LIMIT is not set
+# CONFIG_NETFILTER_XT_MATCH_MAC is not set
+# CONFIG_NETFILTER_XT_MATCH_MARK is not set
+# CONFIG_NETFILTER_XT_MATCH_MULTIPORT is not set
+# CONFIG_NETFILTER_XT_MATCH_OSF is not set
+# CONFIG_NETFILTER_XT_MATCH_OWNER is not set
+# CONFIG_NETFILTER_XT_MATCH_PHYSDEV is not set
+# CONFIG_NETFILTER_XT_MATCH_PKTTYPE is not set
+# CONFIG_NETFILTER_XT_MATCH_POLICY is not set
+# CONFIG_NETFILTER_XT_MATCH_QUOTA is not set
+# CONFIG_NETFILTER_XT_MATCH_RATEEST is not set
+# CONFIG_NETFILTER_XT_MATCH_REALM is not set
+# CONFIG_NETFILTER_XT_MATCH_RECENT is not set
+# CONFIG_NETFILTER_XT_MATCH_RECENT_PROC_COMPAT is not set
+# CONFIG_NETFILTER_XT_MATCH_SCTP is not set
+# CONFIG_NETFILTER_XT_MATCH_STATE is not set
+# CONFIG_NETFILTER_XT_MATCH_STATISTIC is not set
+# CONFIG_NETFILTER_XT_MATCH_STRING is not set
+# CONFIG_NETFILTER_XT_MATCH_TCPMSS is not set
+# CONFIG_NETFILTER_XT_MATCH_TIME is not set
+# CONFIG_NETFILTER_XT_MATCH_U32 is not set
+# CONFIG_NETFILTER_XT_TARGET_CLASSIFY is not set
+# CONFIG_NETFILTER_XT_TARGET_CONNMARK is not set
+# CONFIG_NETFILTER_XT_TARGET_DSCP is not set
+# CONFIG_NETFILTER_XT_TARGET_HL is not set
+# CONFIG_NETFILTER_XT_TARGET_IMQ is not set
+# CONFIG_NETFILTER_XT_TARGET_LED is not set
+# CONFIG_NETFILTER_XT_TARGET_MARK is not set
+# CONFIG_NETFILTER_XT_TARGET_NFLOG is not set
+# CONFIG_NETFILTER_XT_TARGET_NFQUEUE is not set
+# CONFIG_NETFILTER_XT_TARGET_NOTRACK is not set
+# CONFIG_NETFILTER_XT_TARGET_RATEEST is not set
+# CONFIG_NETFILTER_XT_TARGET_TCPMSS is not set
+# CONFIG_NETFILTER_XT_TARGET_TCPOPTSTRIP is not set
+# CONFIG_NETFILTER_XT_TARGET_TRACE is not set
+CONFIG_NETFILTER=y
+CONFIG_NET_IPGRE_BROADCAST=y
+# CONFIG_NET_IPGRE is not set
+# CONFIG_NET_IPIP is not set
+# CONFIG_NET_ISA is not set
+# CONFIG_NET_KEY is not set
+# CONFIG_NET_KEY_MIGRATE is not set
+CONFIG_NET_PCI=y
+# CONFIG_NET_PCMCIA is not set
+# CONFIG_NET_PKTGEN is not set
+# CONFIG_NET_POLL_CONTROLLER is not set
+# CONFIG_NETPOLL is not set
+CONFIG_NET_RADIO=y
+# CONFIG_NETROM is not set
+# CONFIG_NET_SB1000 is not set
+# CONFIG_NET_SCH_ATM is not set
+# CONFIG_NET_SCH_CBQ is not set
+# CONFIG_NET_SCH_CLK_CPU is not set
+# CONFIG_NET_SCH_CLK_GETTIMEOFDAY is not set
+CONFIG_NET_SCH_CLK_JIFFIES=y
+# CONFIG_NET_SCH_DRR is not set
+# CONFIG_NET_SCH_DSMARK is not set
+CONFIG_NET_SCHED=y
+# CONFIG_NET_SCH_ESFQ is not set
+CONFIG_NET_SCH_ESFQ_NFCT=y
+CONFIG_NET_SCH_FIFO=y
+# CONFIG_NET_SCH_GRED is not set
+# CONFIG_NET_SCH_HFSC is not set
+# CONFIG_NET_SCH_HTB is not set
+# CONFIG_NET_SCH_INGRESS is not set
+# CONFIG_NET_SCH_MULTIQ is not set
+# CONFIG_NET_SCH_NETEM is not set
+# CONFIG_NET_SCH_PRIO is not set
+# CONFIG_NET_SCH_RED is not set
+# CONFIG_NET_SCH_RR is not set
+# CONFIG_NET_SCH_SFQ is not set
+# CONFIG_NET_SCH_TBF is not set
+# CONFIG_NET_SCH_TEQL is not set
+# CONFIG_NET_TULIP is not set
+# CONFIG_NET_VENDOR_3COM is not set
+CONFIG_NET_WIRELESS_RTNETLINK=y
+CONFIG_NET_WIRELESS=y
+CONFIG_NETWORK_FILESYSTEMS=y
+# CONFIG_NETWORK_SECMARK is not set
+# CONFIG_NETXEN_NIC is not set
+CONFIG_NET=y
+# CONFIG_NEW_GPIO is not set
+CONFIG_NEW_LEDS=y
+# CONFIG_NF_CONNTRACK_AMANDA is not set
+CONFIG_NF_CONNTRACK_ENABLED=y
+# CONFIG_NF_CONNTRACK_EVENTS is not set
+# CONFIG_NF_CONNTRACK_FTP is not set
+# CONFIG_NF_CONNTRACK_H323 is not set
+# CONFIG_NF_CONNTRACK_IPV4 is not set
+# CONFIG_NF_CONNTRACK_IPV6 is not set
+# CONFIG_NF_CONNTRACK_IRC is not set
+# CONFIG_NF_CONNTRACK is not set
+CONFIG_NF_CONNTRACK_MARK=y
+# CONFIG_NF_CONNTRACK_NETBIOS_NS is not set
+# CONFIG_NF_CONNTRACK_PPTP is not set
+CONFIG_NF_CONNTRACK_PROC_COMPAT=y
+# CONFIG_NF_CONNTRACK_RTSP is not set
+# CONFIG_NF_CONNTRACK_SANE is not set
+# CONFIG_NF_CONNTRACK_SIP is not set
+CONFIG_NF_CONNTRACK_SUPPORT=y
+# CONFIG_NF_CONNTRACK_TFTP is not set
+# CONFIG_NF_CT_ACCT is not set
+# CONFIG_NF_CT_NETLINK is not set
+# CONFIG_NF_CT_PROTO_DCCP is not set
+# CONFIG_NF_CT_PROTO_GRE is not set
+# CONFIG_NF_CT_PROTO_SCTP is not set
+# CONFIG_NF_CT_PROTO_UDPLITE is not set
+# CONFIG_NF_DEFRAG_IPV4 is not set
+# CONFIG_NF_NAT_AMANDA is not set
+# CONFIG_NF_NAT_FTP is not set
+# CONFIG_NF_NAT_H323 is not set
+# CONFIG_NF_NAT_IRC is not set
+# CONFIG_NF_NAT is not set
+CONFIG_NF_NAT_NEEDED=y
+# CONFIG_NF_NAT_PPTP is not set
+# CONFIG_NF_NAT_PROTO_GRE is not set
+# CONFIG_NF_NAT_RTSP is not set
+# CONFIG_NF_NAT_SIP is not set
+# CONFIG_NF_NAT_SNMP_BASIC is not set
+# CONFIG_NF_NAT_TFTP is not set
+# CONFIG_NFS_ACL_SUPPORT is not set
+CONFIG_NFS_COMMON=y
+# CONFIG_NFS_DIRECTIO is not set
+# CONFIG_NFSD is not set
+CONFIG_NFSD_TCP=y
+# CONFIG_NFSD_V2_ACL is not set
+# CONFIG_NFSD_V3_ACL is not set
+CONFIG_NFSD_V3=y
+CONFIG_NFSD_V4=y
+# CONFIG_NFS_FS is not set
+# CONFIG_NFS_V3_ACL is not set
+CONFIG_NFS_V3=y
+# CONFIG_NFS_V4_1 is not set
+CONFIG_NFS_V4=y
+# CONFIG_NFTL is not set
+# CONFIG_NILFS2_FS is not set
+CONFIG_NL80211=y
+CONFIG_NLATTR=y
+# CONFIG_NLS_ASCII is not set
+# CONFIG_NLS_CODEPAGE_1250 is not set
+# CONFIG_NLS_CODEPAGE_1251 is not set
+# CONFIG_NLS_CODEPAGE_437 is not set
+# CONFIG_NLS_CODEPAGE_737 is not set
+# CONFIG_NLS_CODEPAGE_775 is not set
+# CONFIG_NLS_CODEPAGE_850 is not set
+# CONFIG_NLS_CODEPAGE_852 is not set
+# CONFIG_NLS_CODEPAGE_855 is not set
+# CONFIG_NLS_CODEPAGE_857 is not set
+# CONFIG_NLS_CODEPAGE_860 is not set
+# CONFIG_NLS_CODEPAGE_861 is not set
+# CONFIG_NLS_CODEPAGE_862 is not set
+# CONFIG_NLS_CODEPAGE_863 is not set
+# CONFIG_NLS_CODEPAGE_864 is not set
+# CONFIG_NLS_CODEPAGE_865 is not set
+# CONFIG_NLS_CODEPAGE_866 is not set
+# CONFIG_NLS_CODEPAGE_869 is not set
+# CONFIG_NLS_CODEPAGE_874 is not set
+# CONFIG_NLS_CODEPAGE_932 is not set
+# CONFIG_NLS_CODEPAGE_936 is not set
+# CONFIG_NLS_CODEPAGE_949 is not set
+# CONFIG_NLS_CODEPAGE_950 is not set
+CONFIG_NLS_DEFAULT="iso8859-1"
+# CONFIG_NLS is not set
+# CONFIG_NLS_ISO8859_13 is not set
+# CONFIG_NLS_ISO8859_14 is not set
+# CONFIG_NLS_ISO8859_15 is not set
+# CONFIG_NLS_ISO8859_1 is not set
+# CONFIG_NLS_ISO8859_2 is not set
+# CONFIG_NLS_ISO8859_3 is not set
+# CONFIG_NLS_ISO8859_4 is not set
+# CONFIG_NLS_ISO8859_5 is not set
+# CONFIG_NLS_ISO8859_6 is not set
+# CONFIG_NLS_ISO8859_7 is not set
+# CONFIG_NLS_ISO8859_8 is not set
+# CONFIG_NLS_ISO8859_9 is not set
+# CONFIG_NLS_KOI8_R is not set
+# CONFIG_NLS_KOI8_U is not set
+# CONFIG_NLS_UTF8 is not set
+# CONFIG_NO_HZ is not set
+# CONFIG_NOP_USB_XCEIV is not set
+# CONFIG_NORTEL_HERMES is not set
+# CONFIG_NOZOMI is not set
+# CONFIG_NS83820 is not set
+# CONFIG_NTFS_DEBUG is not set
+# CONFIG_NTFS_FS is not set
+# CONFIG_NTFS_RW is not set
+# CONFIG_OCF_BENCH is not set
+# CONFIG_OCF_EP80579 is not set
+# CONFIG_OCF_HIFNHIPP is not set
+# CONFIG_OCF_HIFN is not set
+# CONFIG_OCF_IXP4XX is not set
+# CONFIG_OCF_OCF is not set
+# CONFIG_OCF_OCFNULL is not set
+# CONFIG_OCFS2_FS is not set
+# CONFIG_OCF_SAFE is not set
+# CONFIG_OCF_TALITOS is not set
+# CONFIG_OMFS_FS is not set
+# CONFIG_OSF_PARTITION is not set
+# CONFIG_P54_COMMON is not set
+CONFIG_PACKET_MMAP=y
+CONFIG_PACKET=y
+# CONFIG_PAGE_SIZE_16KB is not set
+# CONFIG_PAGE_SIZE_32KB is not set
+CONFIG_PAGE_SIZE_4KB=y
+# CONFIG_PAGE_SIZE_64KB is not set
+# CONFIG_PAGE_SIZE_8KB is not set
+# CONFIG_PANTHERLORD_FF is not set
+# CONFIG_PARPORT is not set
+# CONFIG_PARPORT_PC is not set
+CONFIG_PARTITION_ADVANCED=y
+# CONFIG_PATA_ALI is not set
+# CONFIG_PATA_AMD is not set
+# CONFIG_PATA_ARTOP is not set
+# CONFIG_PATA_ATIIXP is not set
+# CONFIG_PATA_CMD640_PCI is not set
+# CONFIG_PATA_CMD64X is not set
+# CONFIG_PATA_CS5520 is not set
+# CONFIG_PATA_CS5530 is not set
+# CONFIG_PATA_CS5535 is not set
+# CONFIG_PATA_CS5536 is not set
+# CONFIG_PATA_CYPRESS is not set
+# CONFIG_PATA_EFAR is not set
+# CONFIG_PATA_HPT366 is not set
+# CONFIG_PATA_HPT37X is not set
+# CONFIG_PATA_HPT3X2N is not set
+# CONFIG_PATA_HPT3X3 is not set
+# CONFIG_PATA_ISAPNP is not set
+# CONFIG_PATA_IT8213 is not set
+# CONFIG_PATA_IT821X is not set
+# CONFIG_PATA_JMICRON is not set
+# CONFIG_PATA_LEGACY is not set
+# CONFIG_PATA_MARVELL is not set
+# CONFIG_PATA_MPIIX is not set
+# CONFIG_PATA_NETCELL is not set
+# CONFIG_PATA_NINJA32 is not set
+# CONFIG_PATA_NS87410 is not set
+# CONFIG_PATA_NS87415 is not set
+# CONFIG_PATA_OLDPIIX is not set
+# CONFIG_PATA_OPTIDMA is not set
+# CONFIG_PATA_OPTI is not set
+# CONFIG_PATA_PCMCIA is not set
+# CONFIG_PATA_PDC2027X is not set
+# CONFIG_PATA_PDC_OLD is not set
+# CONFIG_PATA_PLATFORM is not set
+# CONFIG_PATA_QDI is not set
+# CONFIG_PATA_RADISYS is not set
+# CONFIG_PATA_RZ1000 is not set
+# CONFIG_PATA_SC1200 is not set
+# CONFIG_PATA_SCH is not set
+# CONFIG_PATA_SERVERWORKS is not set
+# CONFIG_PATA_SIL680 is not set
+# CONFIG_PATA_SIS is not set
+# CONFIG_PATA_TRIFLEX is not set
+# CONFIG_PATA_VIA is not set
+# CONFIG_PATA_WINBOND is not set
+# CONFIG_PATA_WINBOND_VLB is not set
+# CONFIG_PC300TOO is not set
+# CONFIG_PCCARD is not set
+# CONFIG_PCF8575 is not set
+# CONFIG_PCI200SYN is not set
+# CONFIG_PCI_ATMEL is not set
+# CONFIG_PCI_DISABLE_COMMON_QUIRKS is not set
+# CONFIG_PCIEASPM is not set
+# CONFIG_PCI_HERMES is not set
+# CONFIG_PCI_IOV is not set
+# CONFIG_PCI is not set
+# CONFIG_PCI_LEGACY is not set
+# CONFIG_PCI_MSI is not set
+# CONFIG_PCIPCWATCHDOG is not set
+CONFIG_PCI_QUIRKS=y
+# CONFIG_PCI_STUB is not set
+# CONFIG_PCMCIA_AHA152X is not set
+# CONFIG_PCMCIA_ATMEL is not set
+# CONFIG_PCMCIA_DEBUG is not set
+# CONFIG_PCMCIA_FDOMAIN is not set
+# CONFIG_PCMCIA_HERMES is not set
+# CONFIG_PCMCIA_IOCTL is not set
+# CONFIG_PCMCIA is not set
+# CONFIG_PCMCIA_LOAD_CIS is not set
+# CONFIG_PCMCIA_NETWAVE is not set
+# CONFIG_PCMCIA_NINJA_SCSI is not set
+# CONFIG_PCMCIA_QLOGIC is not set
+# CONFIG_PCMCIA_RAYCS is not set
+# CONFIG_PCMCIA_SPECTRUM is not set
+# CONFIG_PCMCIA_SYM53C500 is not set
+# CONFIG_PCMCIA_WAVELAN is not set
+# CONFIG_PCMCIA_WL3501 is not set
+# CONFIG_PCNET32 is not set
+# CONFIG_PD6729 is not set
+# CONFIG_PDC_ADMA is not set
+# CONFIG_PHANTOM is not set
+# CONFIG_PHONE is not set
+# CONFIG_PHONET is not set
+# CONFIG_PHYLIB is not set
+# CONFIG_PHYS_ADDR_T_64BIT is not set
+# CONFIG_PID_NS is not set
+# CONFIG_PLAN9AUTH is not set
+CONFIG_PLIST=y
+# CONFIG_PLX_HERMES is not set
+# CONFIG_PMIC_DA903X is not set
+# CONFIG_PM is not set
+# CONFIG_POHMELFS is not set
+# CONFIG_POSIX_MQUEUE is not set
+# CONFIG_POWER_SUPPLY is not set
+# CONFIG_PPC_16K_PAGES is not set
+# CONFIG_PPC_256K_PAGES is not set
+CONFIG_PPC_4K_PAGES=y
+CONFIG_PPC4xx_GPIO=y
+# CONFIG_PPC_64K_PAGES is not set
+# CONFIG_PPC_EMULATED_STATS is not set
+# CONFIG_PPP_ASYNC is not set
+# CONFIG_PPP_BSDCOMP is not set
+# CONFIG_PPP_DEFLATE is not set
+CONFIG_PPP_FILTER=y
+# CONFIG_PPP is not set
+# CONFIG_PPP_MPPE is not set
+CONFIG_PPP_MULTILINK=y
+# CONFIG_PPPOATM is not set
+# CONFIG_PPPOE is not set
+# CONFIG_PPPOL2TP is not set
+# CONFIG_PPP_SYNC_TTY is not set
+# CONFIG_PPS is not set
+# CONFIG_PREEMPT is not set
+CONFIG_PREEMPT_NONE=y
+# CONFIG_PREEMPT_RCU is not set
+# CONFIG_PREEMPT_RCU_TRACE is not set
+# CONFIG_PREEMPT_VOLUNTARY is not set
+CONFIG_PREVENT_FIRMWARE_BUILD=y
+# CONFIG_PRINTK_TIME is not set
+CONFIG_PRINTK=y
+# CONFIG_PRISM2_USB is not set
+# CONFIG_PRISM54 is not set
+CONFIG_PROC_FS=y
+CONFIG_PROC_KCORE=y
+# CONFIG_PROC_PAGE_MONITOR is not set
+CONFIG_PROC_SYSCTL=y
+# CONFIG_PROFILING is not set
+# CONFIG_QEMU is not set
+# CONFIG_QLA3XXX is not set
+# CONFIG_QNX4FS_FS is not set
+# CONFIG_QSEMI_PHY is not set
+# CONFIG_QUOTA is not set
+# CONFIG_R3964 is not set
+# CONFIG_R6040 is not set
+# CONFIG_R8169 is not set
+# CONFIG_RADIO_ADAPTERS is not set
+# CONFIG_RADIO_AZTECH is not set
+# CONFIG_RADIO_CADET is not set
+# CONFIG_RADIO_GEMTEK is not set
+# CONFIG_RADIO_GEMTEK_PCI is not set
+# CONFIG_RADIO_MAESTRO is not set
+# CONFIG_RADIO_MAXIRADIO is not set
+# CONFIG_RADIO_RTRACK2 is not set
+# CONFIG_RADIO_RTRACK is not set
+# CONFIG_RADIO_SF16FMI is not set
+# CONFIG_RADIO_SF16FMR2 is not set
+# CONFIG_RADIO_TERRATEC is not set
+# CONFIG_RADIO_TRUST is not set
+# CONFIG_RADIO_TYPHOON is not set
+# CONFIG_RADIO_ZOLTRIX is not set
+# CONFIG_RAID_ATTRS is not set
+CONFIG_RAMFS=y
+# CONFIG_RAR_REGISTER is not set
+# CONFIG_RAW_DRIVER is not set
+# CONFIG_RCU_CPU_STALL_DETECTOR is not set
+CONFIG_RCU_FANOUT=32
+# CONFIG_RCU_FANOUT_EXACT is not set
+# CONFIG_RCU_TRACE is not set
+# CONFIG_RD_BZIP2 is not set
+# CONFIG_RDC_17F3101X is not set
+# CONFIG_RD_GZIP is not set
+CONFIG_RD_LZMA=y
+# CONFIG_RDS is not set
+# CONFIG_REALTEK_PHY is not set
+# CONFIG_REDWOOD is not set
+# CONFIG_REGULATOR_BQ24022 is not set
+# CONFIG_REGULATOR_FIXED_VOLTAGE is not set
+# CONFIG_REGULATOR is not set
+# CONFIG_REGULATOR_VIRTUAL_CONSUMER is not set
+# CONFIG_REISERFS_CHECK is not set
+# CONFIG_REISERFS_FS is not set
+# CONFIG_REISERFS_FS_XATTR is not set
+# CONFIG_REISERFS_PROC_INFO is not set
+# CONFIG_RELAY is not set
+# CONFIG_RESOURCES_64BIT is not set
+# CONFIG_RFD_FTL is not set
+# CONFIG_RFKILL_INPUT is not set
+# CONFIG_RFKILL is not set
+# CONFIG_ROMFS_FS is not set
+# CONFIG_ROSE is not set
+# CONFIG_RPCSEC_GSS_KRB5 is not set
+# CONFIG_RPCSEC_GSS_SPKM3 is not set
+# CONFIG_RT2860 is not set
+# CONFIG_RT2870 is not set
+# CONFIG_RT2X00 is not set
+# CONFIG_RT3070 is not set
+# CONFIG_RTC_CLASS is not set
+# CONFIG_RTC_DEBUG is not set
+# CONFIG_RTC_DRV_BQ4802 is not set
+CONFIG_RTC_DRV_CMOS=y
+# CONFIG_RTC_DRV_DS1286 is not set
+# CONFIG_RTC_DRV_DS1305 is not set
+# CONFIG_RTC_DRV_DS1307 is not set
+# CONFIG_RTC_DRV_DS1374 is not set
+# CONFIG_RTC_DRV_DS1390 is not set
+# CONFIG_RTC_DRV_DS1511 is not set
+# CONFIG_RTC_DRV_DS1553 is not set
+# CONFIG_RTC_DRV_DS1672 is not set
+# CONFIG_RTC_DRV_DS1742 is not set
+# CONFIG_RTC_DRV_DS3234 is not set
+# CONFIG_RTC_DRV_FM3130 is not set
+# CONFIG_RTC_DRV_ISL1208 is not set
+# CONFIG_RTC_DRV_M41T80 is not set
+# CONFIG_RTC_DRV_M41T94 is not set
+# CONFIG_RTC_DRV_M48T35 is not set
+# CONFIG_RTC_DRV_M48T59 is not set
+# CONFIG_RTC_DRV_M48T86 is not set
+# CONFIG_RTC_DRV_MAX6900 is not set
+# CONFIG_RTC_DRV_MAX6902 is not set
+# CONFIG_RTC_DRV_PCF50606 is not set
+# CONFIG_RTC_DRV_PCF8563 is not set
+# CONFIG_RTC_DRV_PCF8583 is not set
+# CONFIG_RTC_DRV_R9701 is not set
+# CONFIG_RTC_DRV_RS5C348 is not set
+# CONFIG_RTC_DRV_RS5C372 is not set
+# CONFIG_RTC_DRV_RTC7301 is not set
+# CONFIG_RTC_DRV_RX8025 is not set
+# CONFIG_RTC_DRV_RX8581 is not set
+# CONFIG_RTC_DRV_S35390A is not set
+# CONFIG_RTC_DRV_STK17TA8 is not set
+# CONFIG_RTC_DRV_TEST is not set
+# CONFIG_RTC_DRV_V3020 is not set
+# CONFIG_RTC_DRV_X1205 is not set
+CONFIG_RTC_HCTOSYS_DEVICE="rtc0"
+CONFIG_RTC_HCTOSYS=y
+# CONFIG_RTC_INTF_DEV_UIE_EMUL is not set
+CONFIG_RTC_INTF_DEV=y
+CONFIG_RTC_INTF_PROC=y
+CONFIG_RTC_INTF_SYSFS=y
+CONFIG_RTC_LIB=y
+# CONFIG_RTL8180 is not set
+# CONFIG_RTL8187 is not set
+# CONFIG_RTL8187SE is not set
+# CONFIG_RTL8192E is not set
+# CONFIG_RTL8192SU is not set
+# CONFIG_RTL8306_PHY is not set
+CONFIG_RT_MUTEXES=y
+CONFIG_RWSEM_GENERIC_SPINLOCK=y
+# CONFIG_S2IO is not set
+# CONFIG_SAMPLES is not set
+# CONFIG_SATA_AHCI is not set
+# CONFIG_SATA_INIC162X is not set
+# CONFIG_SATA_MV is not set
+# CONFIG_SATA_NV is not set
+# CONFIG_SATA_PMP is not set
+# CONFIG_SATA_PROMISE is not set
+# CONFIG_SATA_QSTOR is not set
+# CONFIG_SATA_SIL24 is not set
+# CONFIG_SATA_SIL is not set
+# CONFIG_SATA_SIS is not set
+# CONFIG_SATA_SVW is not set
+# CONFIG_SATA_SX4 is not set
+# CONFIG_SATA_ULI is not set
+# CONFIG_SATA_VIA is not set
+# CONFIG_SATA_VITESSE is not set
+# CONFIG_SC92031 is not set
+# CONFIG_SCC is not set
+# CONFIG_SCHED_BFS is not set
+CONFIG_SCHED_CFS=y
+# CONFIG_SCHED_TRACER is not set
+# CONFIG_SCSI_3W_9XXX is not set
+# CONFIG_SCSI_7000FASST is not set
+# CONFIG_SCSI_AACRAID is not set
+# CONFIG_SCSI_ACARD is not set
+# CONFIG_SCSI_ADVANSYS is not set
+# CONFIG_SCSI_AHA152X is not set
+# CONFIG_SCSI_AHA1542 is not set
+# CONFIG_SCSI_AIC79XX is not set
+# CONFIG_SCSI_AIC7XXX is not set
+# CONFIG_SCSI_AIC7XXX_OLD is not set
+# CONFIG_SCSI_AIC94XX is not set
+# CONFIG_SCSI_ARCMSR is not set
+# CONFIG_SCSI_BNX2_ISCSI is not set
+# CONFIG_SCSI_BUSLOGIC is not set
+# CONFIG_SCSI_CONSTANTS is not set
+# CONFIG_SCSI_DC390T is not set
+# CONFIG_SCSI_DC395x is not set
+# CONFIG_SCSI_DEBUG is not set
+# CONFIG_SCSI_DH is not set
+CONFIG_SCSI_DMA=y
+# CONFIG_SCSI_DMX3191D is not set
+# CONFIG_SCSI_DPT_I2O is not set
+# CONFIG_SCSI_DTC3280 is not set
+# CONFIG_SCSI_EATA is not set
+# CONFIG_SCSI_ESP_CORE is not set
+# CONFIG_SCSI_FC_ATTRS is not set
+# CONFIG_SCSI_FUTURE_DOMAIN is not set
+# CONFIG_SCSI_GDTH is not set
+# CONFIG_SCSI_GENERIC_NCR5380 is not set
+# CONFIG_SCSI_GENERIC_NCR5380_MMIO is not set
+# CONFIG_SCSI_HPTIOP is not set
+# CONFIG_SCSI_IN2000 is not set
+# CONFIG_SCSI_INIA100 is not set
+# CONFIG_SCSI_INITIO is not set
+# CONFIG_SCSI_IPR is not set
+# CONFIG_SCSI_IPS is not set
+# CONFIG_SCSI_ISCSI_ATTRS is not set
+# CONFIG_SCSI is not set
+# CONFIG_SCSI_LOGGING is not set
+# CONFIG_SCSI_LOWLEVEL_PCMCIA is not set
+CONFIG_SCSI_LOWLEVEL=y
+# CONFIG_SCSI_LPFC is not set
+# CONFIG_SCSI_MPT2SAS is not set
+CONFIG_SCSI_MULTI_LUN=y
+# CONFIG_SCSI_MVSAS is not set
+# CONFIG_SCSI_NCR53C406A is not set
+# CONFIG_SCSI_NETLINK is not set
+# CONFIG_SCSI_NSP32 is not set
+# CONFIG_SCSI_OSD_INITIATOR is not set
+# CONFIG_SCSI_PAS16 is not set
+CONFIG_SCSI_PROC_FS=y
+# CONFIG_SCSI_PSI240I is not set
+# CONFIG_SCSI_QLA_FC is not set
+# CONFIG_SCSI_QLA_ISCSI is not set
+# CONFIG_SCSI_QLOGIC_1280 is not set
+# CONFIG_SCSI_QLOGIC_FAS is not set
+# CONFIG_SCSI_SAS_ATTRS is not set
+# CONFIG_SCSI_SAS_LIBSAS is not set
+# CONFIG_SCSI_SCAN_ASYNC is not set
+# CONFIG_SCSI_SEAGATE is not set
+# CONFIG_SCSI_SPI_ATTRS is not set
+# CONFIG_SCSI_SRP_ATTRS is not set
+# CONFIG_SCSI_SRP is not set
+# CONFIG_SCSI_STEX is not set
+# CONFIG_SCSI_SYM53C416 is not set
+# CONFIG_SCSI_SYM53C8XX_2 is not set
+# CONFIG_SCSI_T128 is not set
+# CONFIG_SCSI_TGT is not set
+# CONFIG_SCSI_U14_34F is not set
+# CONFIG_SCSI_ULTRASTOR is not set
+CONFIG_SCSI_WAIT_SCAN=m
+# CONFIG_SECCOMP is not set
+# CONFIG_SECURITY_FILE_CAPABILITIES is not set
+# CONFIG_SECURITYFS is not set
+# CONFIG_SECURITY is not set
+CONFIG_SELECT_MEMORY_MODEL=y
+# CONFIG_SENSORS_ABITUGURU3 is not set
+# CONFIG_SENSORS_ABITUGURU is not set
+# CONFIG_SENSORS_AD7414 is not set
+# CONFIG_SENSORS_AD7418 is not set
+# CONFIG_SENSORS_ADCXX is not set
+# CONFIG_SENSORS_ADM1021 is not set
+# CONFIG_SENSORS_ADM1025 is not set
+# CONFIG_SENSORS_ADM1026 is not set
+# CONFIG_SENSORS_ADM1029 is not set
+# CONFIG_SENSORS_ADM1031 is not set
+# CONFIG_SENSORS_ADM9240 is not set
+# CONFIG_SENSORS_ADS7828 is not set
+# CONFIG_SENSORS_ADT7462 is not set
+# CONFIG_SENSORS_ADT7470 is not set
+# CONFIG_SENSORS_ADT7473 is not set
+# CONFIG_SENSORS_ADT7475 is not set
+# CONFIG_SENSORS_APPLESMC is not set
+# CONFIG_SENSORS_ASB100 is not set
+# CONFIG_SENSORS_ATXP1 is not set
+# CONFIG_SENSORS_CORETEMP is not set
+# CONFIG_SENSORS_DME1737 is not set
+# CONFIG_SENSORS_DS1337 is not set
+# CONFIG_SENSORS_DS1374 is not set
+# CONFIG_SENSORS_DS1621 is not set
+# CONFIG_SENSORS_EEPROM is not set
+# CONFIG_SENSORS_F71805F is not set
+# CONFIG_SENSORS_F71882FG is not set
+# CONFIG_SENSORS_F75375S is not set
+# CONFIG_SENSORS_FSCHER is not set
+# CONFIG_SENSORS_FSCHMD is not set
+# CONFIG_SENSORS_FSCPOS is not set
+# CONFIG_SENSORS_G760A is not set
+# CONFIG_SENSORS_GL518SM is not set
+# CONFIG_SENSORS_GL520SM is not set
+# CONFIG_SENSORS_HDAPS is not set
+# CONFIG_SENSORS_I5K_AMB is not set
+# CONFIG_SENSORS_IT87 is not set
+# CONFIG_SENSORS_K8TEMP is not set
+# CONFIG_SENSORS_LIS3_SPI is not set
+# CONFIG_SENSORS_LM63 is not set
+# CONFIG_SENSORS_LM70 is not set
+# CONFIG_SENSORS_LM75 is not set
+# CONFIG_SENSORS_LM77 is not set
+# CONFIG_SENSORS_LM78 is not set
+# CONFIG_SENSORS_LM80 is not set
+# CONFIG_SENSORS_LM83 is not set
+# CONFIG_SENSORS_LM85 is not set
+# CONFIG_SENSORS_LM87 is not set
+# CONFIG_SENSORS_LM90 is not set
+# CONFIG_SENSORS_LM92 is not set
+# CONFIG_SENSORS_LM93 is not set
+# CONFIG_SENSORS_LM95241 is not set
+# CONFIG_SENSORS_LTC4215 is not set
+# CONFIG_SENSORS_LTC4245 is not set
+# CONFIG_SENSORS_M41T00 is not set
+# CONFIG_SENSORS_MAX1111 is not set
+# CONFIG_SENSORS_MAX1619 is not set
+# CONFIG_SENSORS_MAX6650 is not set
+# CONFIG_SENSORS_MAX6875 is not set
+# CONFIG_SENSORS_PC87360 is not set
+# CONFIG_SENSORS_PC87427 is not set
+# CONFIG_SENSORS_PCA9539 is not set
+# CONFIG_SENSORS_PCF8574 is not set
+# CONFIG_SENSORS_PCF8591 is not set
+# CONFIG_SENSORS_SHT15 is not set
+# CONFIG_SENSORS_SIS5595 is not set
+# CONFIG_SENSORS_SMSC47B397 is not set
+# CONFIG_SENSORS_SMSC47M192 is not set
+# CONFIG_SENSORS_SMSC47M1 is not set
+# CONFIG_SENSORS_THMC50 is not set
+# CONFIG_SENSORS_TMP401 is not set
+# CONFIG_SENSORS_TMP421 is not set
+# CONFIG_SENSORS_TSL2550 is not set
+# CONFIG_SENSORS_VIA686A is not set
+# CONFIG_SENSORS_VT1211 is not set
+# CONFIG_SENSORS_VT8231 is not set
+# CONFIG_SENSORS_W83627EHF is not set
+# CONFIG_SENSORS_W83627HF is not set
+# CONFIG_SENSORS_W83781D is not set
+# CONFIG_SENSORS_W83791D is not set
+# CONFIG_SENSORS_W83792D is not set
+# CONFIG_SENSORS_W83793 is not set
+# CONFIG_SENSORS_W83L785TS is not set
+# CONFIG_SENSORS_W83L786NG is not set
+CONFIG_SERIAL_8250_CONSOLE=y
+# CONFIG_SERIAL_8250_CS is not set
+CONFIG_SERIAL_8250_NR_UARTS=2
+# CONFIG_SERIAL_8250_PCI is not set
+CONFIG_SERIAL_8250_RUNTIME_UARTS=2
+CONFIG_SERIAL_8250=y
+CONFIG_SERIAL_CORE_CONSOLE=y
+CONFIG_SERIAL_CORE=y
+# CONFIG_SERIAL_JSM is not set
+# CONFIG_SERIAL_MAX3100 is not set
+# CONFIG_SERIAL_NONSTANDARD is not set
+# CONFIG_SERIAL_OF_PLATFORM_NWPSERIAL is not set
+# CONFIG_SERIAL_UARTLITE is not set
+# CONFIG_SERIO is not set
+# CONFIG_SGI_IOC4 is not set
+# CONFIG_SGI_PARTITION is not set
+# CONFIG_SHAPER is not set
+CONFIG_SHMEM=y
+CONFIG_SIGNALFD=y
+# CONFIG_SIMPLE_GPIO is not set
+# CONFIG_SIS190 is not set
+# CONFIG_SIS900 is not set
+# CONFIG_SK98LIN is not set
+# CONFIG_SKGE is not set
+# CONFIG_SKY2_DEBUG is not set
+# CONFIG_SKY2 is not set
+CONFIG_SLABINFO=y
+CONFIG_SLAB=y
+# CONFIG_SLHC is not set
+# CONFIG_SLICOSS is not set
+# CONFIG_SLIP is not set
+# CONFIG_SLOB is not set
+# CONFIG_SLOW_WORK is not set
+# CONFIG_SLUB_DEBUG is not set
+# CONFIG_SLUB is not set
+# CONFIG_SMARTJOYPLUS_FF is not set
+# CONFIG_SMB_FS is not set
+# CONFIG_SMB_NLS_DEFAULT is not set
+# CONFIG_SMC911X is not set
+# CONFIG_SMC91X is not set
+# CONFIG_SMSC911X is not set
+# CONFIG_SMSC9420 is not set
+# CONFIG_SMSC_PHY is not set
+# CONFIG_SND_AC97_POWER_SAVE is not set
+# CONFIG_SND_AD1816A is not set
+# CONFIG_SND_AD1848 is not set
+# CONFIG_SND_AD1889 is not set
+# CONFIG_SND_ADLIB is not set
+# CONFIG_SND_ALI5451 is not set
+# CONFIG_SND_ALS100 is not set
+# CONFIG_SND_ALS300 is not set
+# CONFIG_SND_ALS4000 is not set
+# CONFIG_SND_ARM is not set
+# CONFIG_SND_ATIIXP is not set
+# CONFIG_SND_ATIIXP_MODEM is not set
+# CONFIG_SND_AU8810 is not set
+# CONFIG_SND_AU8820 is not set
+# CONFIG_SND_AU8830 is not set
+# CONFIG_SND_AW2 is not set
+# CONFIG_SND_AZT2320 is not set
+# CONFIG_SND_AZT3328 is not set
+# CONFIG_SND_BT87X is not set
+# CONFIG_SND_CA0106 is not set
+# CONFIG_SND_CMI8330 is not set
+# CONFIG_SND_CMIPCI is not set
+# CONFIG_SND_CS4231 is not set
+# CONFIG_SND_CS4232 is not set
+# CONFIG_SND_CS4236 is not set
+# CONFIG_SND_CS4281 is not set
+# CONFIG_SND_CS46XX is not set
+# CONFIG_SND_CS5530 is not set
+# CONFIG_SND_CS5535AUDIO is not set
+# CONFIG_SND_DARLA20 is not set
+# CONFIG_SND_DARLA24 is not set
+# CONFIG_SND_DEBUG is not set
+CONFIG_SND_DRIVERS=y
+# CONFIG_SND_DT019X is not set
+# CONFIG_SND_DUMMY is not set
+# CONFIG_SND_DYNAMIC_MINORS is not set
+# CONFIG_SND_ECHO3G is not set
+# CONFIG_SND_EMU10K1 is not set
+# CONFIG_SND_EMU10K1X is not set
+# CONFIG_SND_ENS1370 is not set
+# CONFIG_SND_ENS1371 is not set
+# CONFIG_SND_ES1688 is not set
+# CONFIG_SND_ES18XX is not set
+# CONFIG_SND_ES1938 is not set
+# CONFIG_SND_ES1968 is not set
+# CONFIG_SND_ES968 is not set
+# CONFIG_SND_FM801 is not set
+# CONFIG_SND_GINA20 is not set
+# CONFIG_SND_GINA24 is not set
+# CONFIG_SND_GUSCLASSIC is not set
+# CONFIG_SND_GUSEXTREME is not set
+# CONFIG_SND_GUSMAX is not set
+# CONFIG_SND_HDA_INTEL is not set
+# CONFIG_SND_HDSP is not set
+# CONFIG_SND_HDSPM is not set
+# CONFIG_SND_HIFIER is not set
+# CONFIG_SND_HRTIMER is not set
+# CONFIG_SND_HWDEP is not set
+# CONFIG_SND_ICE1712 is not set
+# CONFIG_SND_ICE1724 is not set
+# CONFIG_SND_INDIGODJ is not set
+# CONFIG_SND_INDIGOIO is not set
+# CONFIG_SND_INDIGO is not set
+# CONFIG_SND_INTEL8X0 is not set
+# CONFIG_SND_INTEL8X0M is not set
+# CONFIG_SND_INTERWAVE is not set
+# CONFIG_SND_INTERWAVE_STB is not set
+# CONFIG_SND_ISA is not set
+# CONFIG_SND is not set
+# CONFIG_SND_KORG1212 is not set
+# CONFIG_SND_LAYLA20 is not set
+# CONFIG_SND_LAYLA24 is not set
+# CONFIG_SND_MAESTRO3 is not set
+# CONFIG_SND_MIA is not set
+# CONFIG_SND_MIPS is not set
+# CONFIG_SND_MIRO is not set
+# CONFIG_SND_MIXART is not set
+# CONFIG_SND_MIXER_OSS is not set
+# CONFIG_SND_MONA is not set
+# CONFIG_SND_MPU401 is not set
+# CONFIG_SND_MTPAV is not set
+# CONFIG_SND_NM256 is not set
+# CONFIG_SND_OPL3SA2 is not set
+# CONFIG_SND_OPTI92X_AD1848 is not set
+# CONFIG_SND_OPTI92X_CS4231 is not set
+# CONFIG_SND_OPTI93X is not set
+CONFIG_SND_OSSEMUL=y
+# CONFIG_SND_OXYGEN is not set
+# CONFIG_SND_PCI is not set
+# CONFIG_SND_PCMCIA is not set
+# CONFIG_SND_PCM is not set
+# CONFIG_SND_PCM_OSS is not set
+CONFIG_SND_PCM_OSS_PLUGINS=y
+# CONFIG_SND_PCXHR is not set
+# CONFIG_SND_PDAUDIOCF is not set
+# CONFIG_SND_RAWMIDI is not set
+# CONFIG_SND_RIPTIDE is not set
+# CONFIG_SND_RME32 is not set
+# CONFIG_SND_RME9652 is not set
+# CONFIG_SND_RME96 is not set
+# CONFIG_SND_RTCTIMER is not set
+# CONFIG_SND_SB16 is not set
+# CONFIG_SND_SB8 is not set
+# CONFIG_SND_SBAWE is not set
+# CONFIG_SND_SEQUENCER is not set
+# CONFIG_SND_SERIAL_U16550 is not set
+# CONFIG_SND_SGALAXY is not set
+# CONFIG_SND_SOC is not set
+# CONFIG_SND_SONICVIBES is not set
+# CONFIG_SND_SPI is not set
+# CONFIG_SND_SSCAPE is not set
+# CONFIG_SND_SUPPORT_OLD_API is not set
+# CONFIG_SND_TIMER is not set
+# CONFIG_SND_TRIDENT is not set
+# CONFIG_SND_USB_AUDIO is not set
+# CONFIG_SND_USB_CAIAQ is not set
+# CONFIG_SND_USB_US122L is not set
+# CONFIG_SND_USB_USX2Y is not set
+CONFIG_SND_USB=y
+# CONFIG_SND_VERBOSE_PRINTK is not set
+CONFIG_SND_VERBOSE_PROCFS=y
+# CONFIG_SND_VIA82XX is not set
+# CONFIG_SND_VIA82XX_MODEM is not set
+# CONFIG_SND_VIRTUOSO is not set
+# CONFIG_SND_VX222 is not set
+# CONFIG_SND_VXPOCKET is not set
+# CONFIG_SND_WAVEFRONT is not set
+# CONFIG_SND_YMFPCI is not set
+# CONFIG_SNI_RM is not set
+# CONFIG_SOC_CAMERA is not set
+# CONFIG_SOFT_WATCHDOG is not set
+# CONFIG_SOLARIS_X86_PARTITION is not set
+# CONFIG_SONYPI is not set
+# CONFIG_SOUND is not set
+# CONFIG_SOUND_PRIME is not set
+# CONFIG_SPARSEMEM_MANUAL is not set
+# CONFIG_SPARSEMEM_STATIC is not set
+# CONFIG_SPARSEMEM_VMEMMAP_ENABLE is not set
+# CONFIG_SPI_AT25 is not set
+# CONFIG_SPI_DEBUG is not set
+# CONFIG_SPI_GPIO_OLD is not set
+# CONFIG_SPI is not set
+# CONFIG_SPI_MASTER is not set
+# CONFIG_SPI_ORION is not set
+# CONFIG_SPI_TLE62X0 is not set
+CONFIG_SPLIT_PTLOCK_CPUS=4
+# CONFIG_SQUASHFS_EMBEDDED is not set
+CONFIG_SQUASHFS_FRAGMENT_CACHE_SIZE=3
+CONFIG_SQUASHFS_LZMA=y
+CONFIG_SQUASHFS_SUPPORT_ZLIB=y
+# CONFIG_SQUASHFS_VMALLOC is not set
+CONFIG_SQUASHFS=y
+# CONFIG_SSB_BLOCKIO is not set
+# CONFIG_SSB_DEBUG is not set
+# CONFIG_SSB is not set
+# CONFIG_SSB_PCMCIAHOST is not set
+CONFIG_SSB_POSSIBLE=y
+# CONFIG_SSB_SILENT is not set
+# CONFIG_SSFDC is not set
+# CONFIG_STACK_TRACER is not set
+CONFIG_STACKTRACE_SUPPORT=y
+# CONFIG_STAGING_EXCLUDE_BUILD is not set
+CONFIG_STAGING=y
+CONFIG_STANDALONE=y
+CONFIG_STDBINUTILS=y
+# CONFIG_STE10XP is not set
+CONFIG_STP=y
+CONFIG_STRIP_ASM_SYMS=y
+# CONFIG_STRIP is not set
+# CONFIG_SUNDANCE is not set
+# CONFIG_SUNGEM is not set
+# CONFIG_SUN_PARTITION is not set
+# CONFIG_SUNRPC_BIND34 is not set
+# CONFIG_SUNRPC_GSS is not set
+# CONFIG_SUNRPC is not set
+# CONFIG_SUNRPC_REGISTER_V4 is not set
+CONFIG_SUSPEND_UP_POSSIBLE=y
+CONFIG_SWAP=y
+# CONFIG_SWCONFIG is not set
+# CONFIG_SYNCLINK_CS is not set
+CONFIG_SYN_COOKIES=y
+CONFIG_SYSCTL_SYSCALL_CHECK=y
+CONFIG_SYSCTL_SYSCALL=y
+CONFIG_SYSCTL=y
+# CONFIG_SYSFS_DEPRECATED is not set
+# CONFIG_SYSFS_DEPRECATED_V2 is not set
+CONFIG_SYSFS=y
+# CONFIG_SYS_HYPERVISOR is not set
+# CONFIG_SYSV68_PARTITION is not set
+# CONFIG_SYSV_FS is not set
+CONFIG_SYSVIPC_SYSCTL=y
+CONFIG_SYSVIPC=y
+# CONFIG_TASKSTATS is not set
+# CONFIG_TCG_TPM is not set
+# CONFIG_TCIC is not set
+CONFIG_TCP_CONG_ADVANCED=y
+# CONFIG_TCP_CONG_BIC is not set
+# CONFIG_TCP_CONG_CUBIC is not set
+# CONFIG_TCP_CONG_HSTCP is not set
+# CONFIG_TCP_CONG_HTCP is not set
+# CONFIG_TCP_CONG_HYBLA is not set
+# CONFIG_TCP_CONG_ILLINOIS is not set
+# CONFIG_TCP_CONG_LP is not set
+# CONFIG_TCP_CONG_SCALABLE is not set
+# CONFIG_TCP_CONG_VEGAS is not set
+# CONFIG_TCP_CONG_VENO is not set
+CONFIG_TCP_CONG_WESTWOOD=y
+# CONFIG_TCP_CONG_YEAH is not set
+# CONFIG_TCP_MD5SIG is not set
+# CONFIG_TEXTSEARCH_BM is not set
+# CONFIG_TEXTSEARCH_FSM is not set
+# CONFIG_TEXTSEARCH_KMP is not set
+CONFIG_TEXTSEARCH=y
+# CONFIG_THERMAL_HWMON is not set
+# CONFIG_THERMAL is not set
+# CONFIG_THRUSTMASTER_FF is not set
+# CONFIG_TIFM_CORE is not set
+# CONFIG_TIGON3 is not set
+CONFIG_TIMERFD=y
+# CONFIG_TINY_SHMEM is not set
+# CONFIG_TIPC is not set
+# CONFIG_TLAN is not set
+# CONFIG_TMD_HERMES is not set
+# CONFIG_TMPFS_POSIX_ACL is not set
+CONFIG_TMPFS=y
+# CONFIG_TOUCHSCREEN_AD7877 is not set
+# CONFIG_TOUCHSCREEN_AD7879_I2C is not set
+# CONFIG_TOUCHSCREEN_AD7879 is not set
+# CONFIG_TOUCHSCREEN_AD7879_SPI is not set
+# CONFIG_TOUCHSCREEN_ADS7846 is not set
+# CONFIG_TOUCHSCREEN_EETI is not set
+# CONFIG_TOUCHSCREEN_ELO is not set
+# CONFIG_TOUCHSCREEN_FILTER is not set
+# CONFIG_TOUCHSCREEN_FUJITSU is not set
+# CONFIG_TOUCHSCREEN_GUNZE is not set
+# CONFIG_TOUCHSCREEN_INEXIO is not set
+# CONFIG_TOUCHSCREEN_MK712 is not set
+# CONFIG_TOUCHSCREEN_MTOUCH is not set
+# CONFIG_TOUCHSCREEN_PENMOUNT is not set
+# CONFIG_TOUCHSCREEN_S3C2410 is not set
+# CONFIG_TOUCHSCREEN_TOUCHIT213 is not set
+# CONFIG_TOUCHSCREEN_TOUCHRIGHT is not set
+# CONFIG_TOUCHSCREEN_TOUCHWIN is not set
+# CONFIG_TOUCHSCREEN_TSC2007 is not set
+# CONFIG_TOUCHSCREEN_USB_COMPOSITE is not set
+# CONFIG_TOUCHSCREEN_W90X900 is not set
+# CONFIG_TOUCHSCREEN_WACOM_W8001 is not set
+# CONFIG_TPS65010 is not set
+# CONFIG_TRACE_BRANCH_PROFILING is not set
+CONFIG_TRACE_IRQFLAGS_SUPPORT=y
+CONFIG_TRACING_SUPPORT=y
+# CONFIG_TRANZPORT is not set
+# CONFIG_TREE_RCU is not set
+# CONFIG_TREE_RCU_TRACE is not set
+# CONFIG_TR is not set
+# CONFIG_TUNER_3036 is not set
+# CONFIG_TUNER_TEA5761 is not set
+# CONFIG_TUN is not set
+# CONFIG_TWL4030_CORE is not set
+# CONFIG_UACCESS_WITH_MEMCPY is not set
+# CONFIG_UDF_FS is not set
+CONFIG_UDF_NLS=y
+CONFIG_UEVENT_HELPER_PATH="/sbin/hotplug"
+# CONFIG_UFS_FS is not set
+# CONFIG_UIO is not set
+# CONFIG_ULTRIX_PARTITION is not set
+# CONFIG_UNEVICTABLE_LRU is not set
+# CONFIG_UNION_MOUNT is not set
+CONFIG_UNIX98_PTYS=y
+# CONFIG_UNIXWARE_DISKLABEL is not set
+CONFIG_UNIX=y
+# CONFIG_UNUSED_SYMBOLS is not set
+# CONFIG_USB_ACECAD is not set
+# CONFIG_USB_ACM is not set
+# CONFIG_USB_ADUTUX is not set
+# CONFIG_USB_AIPTEK is not set
+CONFIG_USB_ALI_M5632=y
+CONFIG_USB_AN2720=y
+# CONFIG_USB_ANNOUNCE_NEW_DEVICES is not set
+# CONFIG_USB_APPLEDISPLAY is not set
+# CONFIG_USB_APPLETOUCH is not set
+CONFIG_USB_ARCH_HAS_EHCI=y
+CONFIG_USB_ARCH_HAS_HCD=y
+CONFIG_USB_ARCH_HAS_OHCI=y
+CONFIG_USB_ARMLINUX=y
+# CONFIG_USB_ATI_REMOTE2 is not set
+# CONFIG_USB_ATI_REMOTE is not set
+# CONFIG_USB_ATMEL is not set
+# CONFIG_USB_ATM is not set
+# CONFIG_USB_AUERSWALD is not set
+# CONFIG_USB_BANDWIDTH is not set
+CONFIG_USB_BELKIN=y
+# CONFIG_USB_BERRY_CHARGE is not set
+# CONFIG_USB_C67X00_HCD is not set
+# CONFIG_USB_CATC is not set
+# CONFIG_USB_CPC is not set
+# CONFIG_USB_CXACRU is not set
+# CONFIG_USB_CYPRESS_CY7C63 is not set
+# CONFIG_USB_CYTHERM is not set
+# CONFIG_USB_DABUSB is not set
+# CONFIG_USB_DEBUG is not set
+# CONFIG_USB_DEVICE_CLASS is not set
+CONFIG_USB_DEVICEFS=y
+# CONFIG_USB_DSBR is not set
+# CONFIG_USB_DYNAMIC_MINORS is not set
+# CONFIG_USB_EHCI_HCD_PPC_OF is not set
+CONFIG_USB_EHCI_ROOT_HUB_TT=y
+# CONFIG_USB_EHCI_SPLIT_ISO is not set
+# CONFIG_USB_EHCI_TT_NEWSCHED is not set
+# CONFIG_USB_EMI26 is not set
+# CONFIG_USB_EMI62 is not set
+# CONFIG_USB_EPSON2888 is not set
+# CONFIG_USB_ET61X251 is not set
+CONFIG_USB_EZUSB=y
+# CONFIG_USB_FTDI_ELAN is not set
+# CONFIG_USB_GADGET is not set
+# CONFIG_USB_GPIO_VBUS is not set
+# CONFIG_USB_GSPCA_CONEX is not set
+# CONFIG_USB_GSPCA_ETOMS is not set
+# CONFIG_USB_GSPCA_FINEPIX is not set
+# CONFIG_USB_GSPCA is not set
+# CONFIG_USB_GSPCA_MARS is not set
+# CONFIG_USB_GSPCA_MR97310A is not set
+# CONFIG_USB_GSPCA_OV519 is not set
+# CONFIG_USB_GSPCA_OV534 is not set
+# CONFIG_USB_GSPCA_PAC207 is not set
+# CONFIG_USB_GSPCA_PAC7311 is not set
+CONFIG_USB_GSPCA_SN9C20X_EVDEV=y
+# CONFIG_USB_GSPCA_SN9C20X is not set
+# CONFIG_USB_GSPCA_SONIXB is not set
+# CONFIG_USB_GSPCA_SONIXJ is not set
+# CONFIG_USB_GSPCA_SPCA500 is not set
+# CONFIG_USB_GSPCA_SPCA501 is not set
+# CONFIG_USB_GSPCA_SPCA505 is not set
+# CONFIG_USB_GSPCA_SPCA506 is not set
+# CONFIG_USB_GSPCA_SPCA508 is not set
+# CONFIG_USB_GSPCA_SPCA561 is not set
+# CONFIG_USB_GSPCA_SQ905C is not set
+# CONFIG_USB_GSPCA_SQ905 is not set
+# CONFIG_USB_GSPCA_STK014 is not set
+# CONFIG_USB_GSPCA_SUNPLUS is not set
+# CONFIG_USB_GSPCA_T613 is not set
+# CONFIG_USB_GSPCA_TV8532 is not set
+# CONFIG_USB_GSPCA_VC032X is not set
+# CONFIG_USB_GSPCA_ZC3XX is not set
+# CONFIG_USB_HIDDEV is not set
+# CONFIG_USB_HIDINPUT_POWERBOOK is not set
+CONFIG_USB_HIDINPUT=y
+# CONFIG_USB_HID is not set
+# CONFIG_USB_HSO is not set
+# CONFIG_USB_HWA_HCD is not set
+# CONFIG_USB_IBMCAM is not set
+# CONFIG_USB_IDMOUSE is not set
+# CONFIG_USB_IOWARRIOR is not set
+# CONFIG_USB_IP_COMMON is not set
+# CONFIG_USB_ISIGHTFW is not set
+# CONFIG_USB is not set
+# CONFIG_USB_ISP116X_HCD is not set
+# CONFIG_USB_ISP1760_HCD is not set
+# CONFIG_USB_KAWETH is not set
+# CONFIG_USB_KBD is not set
+# CONFIG_USB_KBTAB is not set
+# CONFIG_USB_KC2190 is not set
+# CONFIG_USB_KEYSPAN_REMOTE is not set
+# CONFIG_USB_KONICAWC is not set
+# CONFIG_USB_LCD is not set
+# CONFIG_USB_LD is not set
+# CONFIG_USB_LED is not set
+# CONFIG_USB_LEGOTOWER is not set
+# CONFIG_USB_LIBUSUAL is not set
+# CONFIG_USB_M5602 is not set
+# CONFIG_USB_MDC800 is not set
+# CONFIG_USB_MICROTEK is not set
+# CONFIG_USB_MON is not set
+# CONFIG_USB_MOUSE is not set
+# CONFIG_USB_MUSB_HDRC is not set
+# CONFIG_USB_NET_AX8817X is not set
+# CONFIG_USB_NET_CDC_EEM is not set
+# CONFIG_USB_NET_CDCETHER is not set
+# CONFIG_USB_NET_CDC_SUBSET is not set
+# CONFIG_USB_NET_DM9601 is not set
+# CONFIG_USB_NET_GL620A is not set
+# CONFIG_USB_NET_INT51X1 is not set
+# CONFIG_USB_NET_MCS7830 is not set
+# CONFIG_USB_NET_NET1080 is not set
+# CONFIG_USB_NET_PLUSB is not set
+# CONFIG_USB_NET_RNDIS_HOST is not set
+# CONFIG_USB_NET_RNDIS_WLAN is not set
+# CONFIG_USB_NET_SMSC95XX is not set
+# CONFIG_USB_NET_ZAURUS is not set
+# CONFIG_USB_OHCI_BIG_ENDIAN is not set
+# CONFIG_USB_OHCI_HCD is not set
+# CONFIG_USB_OHCI_HCD_PCI is not set
+# CONFIG_USB_OHCI_HCD_PPC_OF is not set
+# CONFIG_USB_OHCI_HCD_PPC_SOC is not set
+# CONFIG_USB_OHCI_HCD_SSB is not set
+CONFIG_USB_OHCI_LITTLE_ENDIAN=y
+# CONFIG_USB_OTG_BLACKLIST_HUB is not set
+# CONFIG_USB_OTG is not set
+# CONFIG_USB_OTG_WHITELIST is not set
+# CONFIG_USB_OV511 is not set
+# CONFIG_USB_OXU210HP_HCD is not set
+# CONFIG_USBPCWATCHDOG is not set
+# CONFIG_USB_PEGASUS is not set
+# CONFIG_USB_PHIDGET is not set
+# CONFIG_USB_POWERMATE is not set
+# CONFIG_USB_PRINTER is not set
+# CONFIG_USB_PWC_INPUT_EVDEV is not set
+# CONFIG_USB_QUICKCAM_MESSENGER is not set
+# CONFIG_USB_R8A66597_HCD is not set
+# CONFIG_USB_RIO500 is not set
+# CONFIG_USB_RTL8150 is not set
+# CONFIG_USB_S2255 is not set
+# CONFIG_USB_SE401 is not set
+# CONFIG_USB_SERIAL_AIRCABLE is not set
+# CONFIG_USB_SERIAL_AIRPRIME is not set
+# CONFIG_USB_SERIAL_ARK3116 is not set
+# CONFIG_USB_SERIAL_BELKIN is not set
+# CONFIG_USB_SERIAL_CH341 is not set
+# CONFIG_USB_SERIAL_CP2101 is not set
+# CONFIG_USB_SERIAL_CP210X is not set
+# CONFIG_USB_SERIAL_CYBERJACK is not set
+# CONFIG_USB_SERIAL_CYPRESS_M8 is not set
+# CONFIG_USB_SERIAL_DEBUG is not set
+# CONFIG_USB_SERIAL_DIGI_ACCELEPORT is not set
+# CONFIG_USB_SERIAL_EDGEPORT is not set
+# CONFIG_USB_SERIAL_EDGEPORT_TI is not set
+# CONFIG_USB_SERIAL_EMPEG is not set
+# CONFIG_USB_SERIAL_FTDI_SIO is not set
+# CONFIG_USB_SERIAL_FUNSOFT is not set
+# CONFIG_USB_SERIAL_GARMIN is not set
+CONFIG_USB_SERIAL_GENERIC=y
+# CONFIG_USB_SERIAL_HP4X is not set
+# CONFIG_USB_SERIAL_IPAQ is not set
+# CONFIG_USB_SERIAL_IPW is not set
+# CONFIG_USB_SERIAL_IR is not set
+# CONFIG_USB_SERIAL is not set
+# CONFIG_USB_SERIAL_IUU is not set
+# CONFIG_USB_SERIAL_KEYSPAN is not set
+CONFIG_USB_SERIAL_KEYSPAN_MPR=y
+# CONFIG_USB_SERIAL_KEYSPAN_PDA is not set
+CONFIG_USB_SERIAL_KEYSPAN_USA18X=y
+CONFIG_USB_SERIAL_KEYSPAN_USA19QI=y
+CONFIG_USB_SERIAL_KEYSPAN_USA19QW=y
+CONFIG_USB_SERIAL_KEYSPAN_USA19W=y
+CONFIG_USB_SERIAL_KEYSPAN_USA19=y
+CONFIG_USB_SERIAL_KEYSPAN_USA28XA=y
+CONFIG_USB_SERIAL_KEYSPAN_USA28XB=y
+CONFIG_USB_SERIAL_KEYSPAN_USA28X=y
+CONFIG_USB_SERIAL_KEYSPAN_USA28=y
+CONFIG_USB_SERIAL_KEYSPAN_USA49WLC=y
+CONFIG_USB_SERIAL_KEYSPAN_USA49W=y
+# CONFIG_USB_SERIAL_KLSI is not set
+# CONFIG_USB_SERIAL_KOBIL_SCT is not set
+# CONFIG_USB_SERIAL_MCT_U232 is not set
+# CONFIG_USB_SERIAL_MOS7720 is not set
+# CONFIG_USB_SERIAL_MOS7840 is not set
+# CONFIG_USB_SERIAL_MOTOROLA is not set
+# CONFIG_USB_SERIAL_NAVMAN is not set
+# CONFIG_USB_SERIAL_OMNINET is not set
+# CONFIG_USB_SERIAL_OPTICON is not set
+# CONFIG_USB_SERIAL_OPTION is not set
+# CONFIG_USB_SERIAL_OTI6858 is not set
+# CONFIG_USB_SERIAL_PL2303 is not set
+# CONFIG_USB_SERIAL_QUALCOMM is not set
+# CONFIG_USB_SERIAL_QUATECH2 is not set
+# CONFIG_USB_SERIAL_SAFE is not set
+CONFIG_USB_SERIAL_SAFE_PADDED=y
+# CONFIG_USB_SERIAL_SIEMENS_MPI is not set
+# CONFIG_USB_SERIAL_SIERRAWIRELESS is not set
+# CONFIG_USB_SERIAL_SPCP8X5 is not set
+# CONFIG_USB_SERIAL_SYMBOL is not set
+# CONFIG_USB_SERIAL_TI is not set
+# CONFIG_USB_SERIAL_VISOR is not set
+# CONFIG_USB_SERIAL_WHITEHEAT is not set
+# CONFIG_USB_SERIAL_XIRCOM is not set
+# CONFIG_USB_SEVSEG is not set
+# CONFIG_USB_SISUSBVGA is not set
+# CONFIG_USB_SL811_HCD is not set
+# CONFIG_USB_SN9C102 is not set
+# CONFIG_USB_SPEEDTOUCH is not set
+# CONFIG_USB_STKWEBCAM is not set
+CONFIG_USB_STORAGE_ALAUDA=y
+# CONFIG_USB_STORAGE_CYPRESS_ATACB is not set
+CONFIG_USB_STORAGE_DATAFAB=y
+# CONFIG_USB_STORAGE_DEBUG is not set
+CONFIG_USB_STORAGE_DPCM=y
+CONFIG_USB_STORAGE_FREECOM=y
+# CONFIG_USB_STORAGE_ISD200 is not set
+# CONFIG_USB_STORAGE is not set
+CONFIG_USB_STORAGE_JUMPSHOT=y
+CONFIG_USB_STORAGE_KARMA=y
+# CONFIG_USB_STORAGE_ONETOUCH is not set
+CONFIG_USB_STORAGE_SDDR09=y
+CONFIG_USB_STORAGE_SDDR55=y
+# CONFIG_USB_STORAGE_SIERRA is not set
+CONFIG_USB_STORAGE_USBAT=y
+# CONFIG_USB_STV06XX is not set
+# CONFIG_USB_STV680 is not set
+# CONFIG_USB_SUPPORT is not set
+# CONFIG_USB_SUSPEND is not set
+# CONFIG_USB_TEST is not set
+# CONFIG_USB_TMC is not set
+# CONFIG_USB_TOUCHSCREEN is not set
+# CONFIG_USB_TRANCEVIBRATOR is not set
+# CONFIG_USB_UEAGLEATM is not set
+# CONFIG_USB_USBNET is not set
+# CONFIG_USB_USBNET_MII is not set
+# CONFIG_USB_VICAM is not set
+CONFIG_USB_VIDEO_CLASS_INPUT_EVDEV=y
+# CONFIG_USB_VIDEO_CLASS is not set
+# CONFIG_USB_VST is not set
+# CONFIG_USB_W9968CF is not set
+# CONFIG_USB_WACOM is not set
+# CONFIG_USB_WDM is not set
+# CONFIG_USB_WHCI_HCD is not set
+# CONFIG_USB_WUSB_CBAF is not set
+# CONFIG_USB_WUSB is not set
+# CONFIG_USB_XHCI_HCD is not set
+# CONFIG_USB_XPAD is not set
+# CONFIG_USB_XUSBATM is not set
+# CONFIG_USB_YEALINK is not set
+# CONFIG_USB_ZC0301 is not set
+# CONFIG_USB_ZD1201 is not set
+# CONFIG_USB_ZR364XX is not set
+# CONFIG_USE_GENERIC_SMP_HELPERS is not set
+# CONFIG_UTS_NS is not set
+# CONFIG_UWB is not set
+# CONFIG_VETH is not set
+# CONFIG_VFAT_FS is not set
+# CONFIG_VGA_ARB is not set
+# CONFIG_VGASTATE is not set
+# CONFIG_VIA_RHINE is not set
+# CONFIG_VIA_VELOCITY is not set
+# CONFIG_VIDEO_ADV7170 is not set
+# CONFIG_VIDEO_ADV7175 is not set
+# CONFIG_VIDEO_ADV_DEBUG is not set
+# CONFIG_VIDEO_ALLOW_V4L1 is not set
+# CONFIG_VIDEO_BT819 is not set
+# CONFIG_VIDEO_BT848 is not set
+# CONFIG_VIDEO_BT856 is not set
+# CONFIG_VIDEO_BT866 is not set
+# CONFIG_VIDEO_CAFE_CCIC is not set
+# CONFIG_VIDEO_CAPTURE_DRIVERS is not set
+# CONFIG_VIDEO_CPIA is not set
+# CONFIG_VIDEO_CS5345 is not set
+# CONFIG_VIDEO_CS53L32A is not set
+# CONFIG_VIDEO_CX231XX is not set
+# CONFIG_VIDEO_CX2341X is not set
+# CONFIG_VIDEO_CX25840 is not set
+# CONFIG_VIDEO_CX88 is not set
+# CONFIG_VIDEO_DEV is not set
+# CONFIG_VIDEO_DPC is not set
+# CONFIG_VIDEO_EM28XX is not set
+# CONFIG_VIDEO_FIXED_MINOR_RANGES is not set
+# CONFIG_VIDEO_GO7007 is not set
+# CONFIG_VIDEO_HDPVR is not set
+# CONFIG_VIDEO_HELPER_CHIPS_AUTO is not set
+# CONFIG_VIDEO_HEXIUM_GEMINI is not set
+# CONFIG_VIDEO_HEXIUM_ORION is not set
+# CONFIG_VIDEO_IVTV is not set
+# CONFIG_VIDEO_KS0127 is not set
+# CONFIG_VIDEO_M52790 is not set
+# CONFIG_VIDEO_MEDIA is not set
+# CONFIG_VIDEO_MSP3400 is not set
+# CONFIG_VIDEO_MXB is not set
+# CONFIG_VIDEO_OUTPUT_CONTROL is not set
+# CONFIG_VIDEO_OV7670 is not set
+# CONFIG_VIDEO_OVCAMCHIP is not set
+# CONFIG_VIDEO_PMS is not set
+# CONFIG_VIDEO_PVRUSB2 is not set
+# CONFIG_VIDEO_SAA5246A is not set
+# CONFIG_VIDEO_SAA5249 is not set
+# CONFIG_VIDEO_SAA6588 is not set
+# CONFIG_VIDEO_SAA7110 is not set
+# CONFIG_VIDEO_SAA7111 is not set
+# CONFIG_VIDEO_SAA7114 is not set
+# CONFIG_VIDEO_SAA711X is not set
+# CONFIG_VIDEO_SAA7127 is not set
+# CONFIG_VIDEO_SAA7134 is not set
+# CONFIG_VIDEO_SAA717X is not set
+# CONFIG_VIDEO_SAA7185 is not set
+# CONFIG_VIDEO_SAA7191 is not set
+# CONFIG_VIDEO_SH_MOBILE_CEU is not set
+# CONFIG_VIDEO_STRADIS is not set
+# CONFIG_VIDEO_TCM825X is not set
+# CONFIG_VIDEO_TDA7432 is not set
+# CONFIG_VIDEO_TDA9840 is not set
+# CONFIG_VIDEO_TDA9875 is not set
+# CONFIG_VIDEO_TEA6415C is not set
+# CONFIG_VIDEO_TEA6420 is not set
+# CONFIG_VIDEO_TLV320AIC23B is not set
+# CONFIG_VIDEO_TVAUDIO is not set
+# CONFIG_VIDEO_TVP514X is not set
+# CONFIG_VIDEO_TVP5150 is not set
+# CONFIG_VIDEO_UPD64031A is not set
+# CONFIG_VIDEO_UPD64083 is not set
+# CONFIG_VIDEO_USBVISION is not set
+CONFIG_VIDEO_V4L1_COMPAT=y
+# CONFIG_VIDEO_V4L1 is not set
+# CONFIG_VIDEO_V4L2_COMMON is not set
+# CONFIG_VIDEO_V4L2 is not set
+# CONFIG_VIDEO_VIVI is not set
+# CONFIG_VIDEO_VP27SMPX is not set
+# CONFIG_VIDEO_VPX3220 is not set
+# CONFIG_VIDEO_WM8739 is not set
+# CONFIG_VIDEO_WM8775 is not set
+# CONFIG_VIDEO_ZORAN is not set
+# CONFIG_VIRQ_DEBUG is not set
+CONFIG_VIRT_TO_BUS=y
+# CONFIG_VIRTUALIZATION is not set
+# CONFIG_VITESSE_PHY is not set
+# CONFIG_VLAN_8021Q_GVRP is not set
+CONFIG_VLAN_8021Q=y
+# CONFIG_VME_BUS is not set
+# CONFIG_VM_EVENT_COUNTERS is not set
+# CONFIG_VMSPLIT_1G is not set
+# CONFIG_VMSPLIT_2G is not set
+CONFIG_VMSPLIT_3G=y
+# CONFIG_VT6655 is not set
+# CONFIG_VT is not set
+# CONFIG_VXFS_FS is not set
+# CONFIG_W1 is not set
+# CONFIG_W1_MASTER_DS1WM is not set
+# CONFIG_W1_MASTER_DS2482 is not set
+# CONFIG_W1_MASTER_DS2490 is not set
+# CONFIG_W1_MASTER_GPIO is not set
+# CONFIG_W1_MASTER_MATROX is not set
+# CONFIG_W1_SLAVE_BQ27000 is not set
+# CONFIG_W1_SLAVE_DS2431 is not set
+# CONFIG_W1_SLAVE_DS2433 is not set
+# CONFIG_W1_SLAVE_DS2760 is not set
+# CONFIG_W1_SLAVE_SMEM is not set
+# CONFIG_W1_SLAVE_THERM is not set
+# CONFIG_W83627HF_WDT is not set
+# CONFIG_W83697HF_WDT is not set
+# CONFIG_W83877F_WDT is not set
+# CONFIG_W83977F_WDT is not set
+# CONFIG_WAN is not set
+# CONFIG_WAN_ROUTER is not set
+# CONFIG_WANXL is not set
+# CONFIG_WATCHDOG_NOWAYOUT is not set
+CONFIG_WATCHDOG=y
+# CONFIG_WDTPCI is not set
+# CONFIG_WIMAX is not set
+CONFIG_WIRELESS_EXT_SYSFS=y
+CONFIG_WIRELESS_EXT=y
+CONFIG_WIRELESS_OLD_REGULATORY=y
+CONFIG_WIRELESS=y
+CONFIG_WLAN_80211=y
+# CONFIG_WLAN_PRE80211 is not set
+CONFIG_WLAN=y
+# CONFIG_WORKQUEUE_TRACER is not set
+# CONFIG_WR_PPMC is not set
+# CONFIG_X25 is not set
+# CONFIG_XFRM_IPCOMP is not set
+# CONFIG_XFRM_MIGRATE is not set
+# CONFIG_XFRM_STATISTICS is not set
+# CONFIG_XFRM_SUB_POLICY is not set
+# CONFIG_XFRM_USER is not set
+CONFIG_XFRM=y
+# CONFIG_XFS_DEBUG is not set
+# CONFIG_XFS_FS is not set
+# CONFIG_XFS_POSIX_ACL is not set
+# CONFIG_XFS_QUOTA is not set
+# CONFIG_XFS_RT is not set
+# CONFIG_XFS_SECURITY is not set
+# CONFIG_XIP_KERNEL is not set
+# CONFIG_YAFFS_FS is not set
+# CONFIG_YAM is not set
+# CONFIG_YELLOWFIN is not set
+# CONFIG_YENTA is not set
+# CONFIG_YENTA_O2 is not set
+# CONFIG_YENTA_RICOH is not set
+# CONFIG_YENTA_TI is not set
+# CONFIG_YENTA_TOSHIBA is not set
+# CONFIG_ZD1211RW_DEBUG is not set
+# CONFIG_ZD1211RW is not set
+# CONFIG_ZEROPLUS_FF is not set
+# CONFIG_ZISOFS_FS is not set
+CONFIG_ZISOFS=y
+CONFIG_ZLIB_DEFLATE=y
+CONFIG_ZLIB_INFLATE=y
+CONFIG_ZONE_DMA_FLAG=1
+CONFIG_ZONE_DMA=y

diff --git a/target/linux/generic-2.6/files-2.6.32/drivers/char/gpio_dev.c b/target/linux/generic-2.6/files-2.6.32/drivers/char/gpio_dev.c
new file mode 100644 (file)
index 0000000..8392fcf
--- /dev/null
+++ b/target/linux/generic-2.6/files-2.6.32/drivers/char/gpio_dev.c
@@ -0,0 +1,201 @@
+/*
+ * character device wrapper for generic gpio layer
+ *
+ * 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.
+ *
+ * This program is distributed in the hope that 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, MA02111-1307USA
+ *
+ * Feedback, Bugs...  blogic@openwrt.org
+ *
+ */
+
+#include <linux/module.h>
+#include <linux/errno.h>
+#include <linux/init.h>
+#include <asm/uaccess.h>
+#include <asm/io.h>
+#include <asm/gpio.h>
+#include <asm/atomic.h>
+#include <linux/init.h>
+#include <linux/genhd.h>
+#include <linux/device.h>
+#include <linux/platform_device.h>
+#include <linux/gpio_dev.h>
+
+#define DRVNAME                "gpiodev"
+#define DEVNAME                "gpio"
+
+static int dev_major;
+static unsigned int gpio_access_mask;
+static struct class *gpiodev_class;
+
+/* Counter is 1, if the device is not opened and zero (or less) if opened. */
+static atomic_t gpio_open_cnt = ATOMIC_INIT(1);
+
+static int
+gpio_ioctl(struct inode * inode, struct file * file, unsigned int cmd, unsigned long arg)
+{
+       int retval = 0;
+
+       if (((1 << arg) & gpio_access_mask) != (1 << arg))
+       {
+               retval = -EINVAL;
+               goto out;
+       }
+
+       switch (cmd)
+       {
+       case GPIO_GET:
+               retval = gpio_get_value(arg);
+               break;
+
+       case GPIO_SET:
+               gpio_set_value(arg, 1);
+               break;
+
+       case GPIO_CLEAR:
+               gpio_set_value(arg, 0);
+               break;
+
+       case GPIO_DIR_IN:
+               gpio_direction_input(arg);
+               break;
+
+       case GPIO_DIR_OUT:
+               gpio_direction_output(arg, 0);
+               break;
+
+       default:
+               retval = -EINVAL;
+               break;
+       }
+
+out:
+       return retval;
+}
+
+static int
+gpio_open(struct inode *inode, struct file *file)
+{
+       int result = 0;
+       unsigned int dev_minor = MINOR(inode->i_rdev);
+
+       if (dev_minor != 0)
+       {
+               printk(KERN_ERR DRVNAME ": trying to access unknown minor device -> %d\n", dev_minor);
+               result = -ENODEV;
+               goto out;
+       }
+
+       /* FIXME: We should really allow multiple applications to open the device
+        *        at the same time, as long as the apps access different IO pins.
+        *        The generic gpio-registration functions can be used for that.
+        *        Two new IOCTLs have to be introduced for that. Need to check userspace
+        *        compatibility first. --mb */
+       if (!atomic_dec_and_test(&gpio_open_cnt)) {
+               atomic_inc(&gpio_open_cnt);
+               printk(KERN_ERR DRVNAME ": Device with minor ID %d already in use\n", dev_minor);
+               result = -EBUSY;
+               goto out;
+       }
+
+out:
+       return result;
+}
+
+static int
+gpio_close(struct inode * inode, struct file * file)
+{
+       smp_mb__before_atomic_inc();
+       atomic_inc(&gpio_open_cnt);
+
+       return 0;
+}
+
+struct file_operations gpio_fops = {
+       ioctl:          gpio_ioctl,
+       open:           gpio_open,
+       release:        gpio_close
+};
+
+static int
+gpio_probe(struct platform_device *dev)
+{
+       int result = 0;
+
+       dev_major = register_chrdev(0, DEVNAME, &gpio_fops);
+       if (!dev_major)
+       {
+               printk(KERN_ERR DRVNAME ": Error whilst opening %s \n", DEVNAME);
+               result = -ENODEV;
+               goto out;
+       }
+
+       gpiodev_class = class_create(THIS_MODULE, DRVNAME);
+       device_create(gpiodev_class, NULL, MKDEV(dev_major, 0), dev, DEVNAME);
+
+       printk(KERN_INFO DRVNAME ": gpio device registered with major %d\n", dev_major);
+
+       if (dev->num_resources != 1)
+       {
+               printk(KERN_ERR DRVNAME ": device may only have 1 resource\n");
+               result = -ENODEV;
+               goto out;
+       }
+
+       gpio_access_mask = dev->resource[0].start;
+
+       printk(KERN_INFO DRVNAME ": gpio platform device registered with access mask %08X\n", gpio_access_mask);
+out:
+       return result;
+}
+
+static int
+gpio_remove(struct platform_device *dev)
+{
+       unregister_chrdev(dev_major, DEVNAME);
+       return 0;
+}
+
+static struct
+platform_driver gpio_driver = {
+       .probe = gpio_probe,
+       .remove = gpio_remove,
+       .driver = {
+               .name = "GPIODEV",
+               .owner = THIS_MODULE,
+       },
+};
+
+static int __init
+gpio_mod_init(void)
+{
+       int ret = platform_driver_register(&gpio_driver);
+       if (ret)
+               printk(KERN_INFO DRVNAME ": Error registering platfom driver!");
+
+       return ret;
+}
+
+static void __exit
+gpio_mod_exit(void)
+{
+       platform_driver_unregister(&gpio_driver);
+}
+
+module_init (gpio_mod_init);
+module_exit (gpio_mod_exit);
+
+MODULE_LICENSE("GPL");
+MODULE_AUTHOR("John Crispin / OpenWrt");
+MODULE_DESCRIPTION("Character device for for generic gpio api");

diff --git a/target/linux/generic-2.6/files-2.6.32/drivers/input/misc/gpio_buttons.c b/target/linux/generic-2.6/files-2.6.32/drivers/input/misc/gpio_buttons.c
new file mode 100644 (file)
index 0000000..83a8178
--- /dev/null
+++ b/target/linux/generic-2.6/files-2.6.32/drivers/input/misc/gpio_buttons.c
@@ -0,0 +1,209 @@
+/*
+ *  Driver for buttons on GPIO lines not capable of generating interrupts
+ *
+ *  Copyright (C) 2007,2008 Gabor Juhos <juhosg at openwrt.org>
+ *
+ *  This file was based on: /drivers/input/misc/cobalt_btns.c
+ *     Copyright (C) 2007 Yoichi Yuasa <yoichi_yuasa@tripeaks.co.jp>
+ *
+ *  also was based on: /drivers/input/keyboard/gpio_keys.c
+ *     Copyright 2005 Phil Blundell
+ *
+ *  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 <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/init.h>
+
+#include <linux/input.h>
+#include <linux/input-polldev.h>
+#include <linux/ioport.h>
+#include <linux/platform_device.h>
+
+#include <linux/gpio_buttons.h>
+
+#include <asm/gpio.h>
+
+#define DRV_NAME       "gpio-buttons"
+#define DRV_VERSION    "0.1.1"
+#define PFX            DRV_NAME ": "
+
+struct gpio_buttons_dev {
+       struct input_polled_dev *poll_dev;
+       struct gpio_buttons_platform_data *pdata;
+};
+
+static void gpio_buttons_poll(struct input_polled_dev *dev)
+{
+       struct gpio_buttons_dev *bdev = dev->private;
+       struct gpio_buttons_platform_data *pdata = bdev->pdata;
+       struct input_dev *input = dev->input;
+       int i;
+
+       for (i = 0; i < bdev->pdata->nbuttons; i++) {
+               struct gpio_button *button = &pdata->buttons[i];
+               unsigned int type = button->type ?: EV_KEY;
+               int state;
+
+               state = gpio_get_value(button->gpio) ? 1 : 0;
+               state ^= button->active_low;
+
+               if (state) {
+                       button->count++;
+               } else {
+                       if (button->count >= button->threshold) {
+                               input_event(input, type, button->code, 1);
+                               input_sync(input);
+                       }
+                       button->count = 0;
+               }
+
+               if (button->count == button->threshold) {
+                       input_event(input, type, button->code, 0);
+                       input_sync(input);
+               }
+       }
+}
+
+static int __devinit gpio_buttons_probe(struct platform_device *pdev)
+{
+       struct gpio_buttons_platform_data *pdata = pdev->dev.platform_data;
+       struct gpio_buttons_dev *bdev;
+       struct input_polled_dev *poll_dev;
+       struct input_dev *input;
+       int error, i;
+
+
+       if (!pdata)
+               return -ENXIO;
+
+       bdev = kzalloc(sizeof(*bdev), GFP_KERNEL);
+       if (!bdev) {
+               printk(KERN_ERR DRV_NAME "no memory for device\n");
+               return -ENOMEM;
+       }
+
+       poll_dev = input_allocate_polled_device();
+       if (!poll_dev) {
+               printk(KERN_ERR DRV_NAME "no memory for polled device\n");
+               error = -ENOMEM;
+               goto err_free_bdev;
+       }
+
+       poll_dev->private = bdev;
+       poll_dev->poll = gpio_buttons_poll;
+       poll_dev->poll_interval = pdata->poll_interval;
+
+       input = poll_dev->input;
+
+       input->evbit[0] = BIT(EV_KEY);
+       input->name = pdev->name;
+       input->phys = "gpio-buttons/input0";
+       input->dev.parent = &pdev->dev;
+
+       input->id.bustype = BUS_HOST;
+       input->id.vendor = 0x0001;
+       input->id.product = 0x0001;
+       input->id.version = 0x0100;
+
+       for (i = 0; i < pdata->nbuttons; i++) {
+               struct gpio_button *button = &pdata->buttons[i];
+               unsigned int gpio = button->gpio;
+               unsigned int type = button->type ?: EV_KEY;
+
+               error = gpio_request(gpio, button->desc ?
+                               button->desc : DRV_NAME);
+               if (error) {
+                       printk(KERN_ERR PFX "unable to claim gpio %u, "
+                               "error %d\n", gpio, error);
+                       goto err_free_gpio;
+               }
+
+               error = gpio_direction_input(gpio);
+               if (error) {
+                       printk(KERN_ERR PFX "unable to set direction on "
+                               "gpio %u, error %d\n", gpio, error);
+                       goto err_free_gpio;
+               }
+
+               input_set_capability(input, type, button->code);
+               button->count = 0;
+       }
+
+       bdev->poll_dev = poll_dev;
+       bdev->pdata = pdata;
+       platform_set_drvdata(pdev, bdev);
+
+       error = input_register_polled_device(poll_dev);
+       if (error) {
+               printk(KERN_ERR PFX "unable to register polled device, "
+                       "error %d\n", error);
+               goto err_free_gpio;
+       }
+
+       return 0;
+
+err_free_gpio:
+       for (i = i - 1; i >= 0; i--)
+               gpio_free(pdata->buttons[i].gpio);
+
+       input_free_polled_device(poll_dev);
+
+err_free_bdev:
+       kfree(bdev);
+
+       platform_set_drvdata(pdev, NULL);
+       return error;
+}
+
+static int __devexit gpio_buttons_remove(struct platform_device *pdev)
+{
+       struct gpio_buttons_dev *bdev = platform_get_drvdata(pdev);
+       struct gpio_buttons_platform_data *pdata = bdev->pdata;
+       int i;
+
+       input_unregister_polled_device(bdev->poll_dev);
+
+       for (i = 0; i < pdata->nbuttons; i++)
+               gpio_free(pdata->buttons[i].gpio);
+
+       input_free_polled_device(bdev->poll_dev);
+
+       kfree(bdev);
+       platform_set_drvdata(pdev, NULL);
+
+       return 0;
+}
+
+static struct platform_driver gpio_buttons_driver = {
+       .probe  = gpio_buttons_probe,
+       .remove = __devexit_p(gpio_buttons_remove),
+       .driver = {
+               .name   = DRV_NAME,
+               .owner  = THIS_MODULE,
+       },
+};
+
+static int __init gpio_buttons_init(void)
+{
+       printk(KERN_INFO DRV_NAME " driver version " DRV_VERSION "\n");
+       return platform_driver_register(&gpio_buttons_driver);
+}
+
+static void __exit gpio_buttons_exit(void)
+{
+       platform_driver_unregister(&gpio_buttons_driver);
+}
+
+module_init(gpio_buttons_init);
+module_exit(gpio_buttons_exit);
+
+MODULE_LICENSE("GPL");
+MODULE_AUTHOR("Gabor Juhos <juhosg at openwrt.org>");
+MODULE_VERSION(DRV_VERSION);
+MODULE_DESCRIPTION("Polled buttons driver for CPU GPIOs");
+

diff --git a/target/linux/generic-2.6/files-2.6.32/drivers/leds/leds-alix.c b/target/linux/generic-2.6/files-2.6.32/drivers/leds/leds-alix.c
new file mode 100644 (file)
index 0000000..103ca7d
--- /dev/null
+++ b/target/linux/generic-2.6/files-2.6.32/drivers/leds/leds-alix.c
@@ -0,0 +1,172 @@
+/*
+ * LEDs driver for PCEngines ALIX 2/3 series
+ *
+ * Copyright (C) 2007 Petr Liebman
+ *
+ * Based on leds-wrap.c
+ *
+ * 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 <linux/kernel.h>
+#include <linux/init.h>
+#include <linux/platform_device.h>
+#include <linux/leds.h>
+#include <linux/err.h>
+#include <asm/io.h>
+
+#define DRVNAME "alix-led"
+
+#define ALIX_LED1_PORT         (0x6100)
+#define ALIX_LED1_ON           (1<<22)
+#define ALIX_LED1_OFF          (1<<6)
+
+#define ALIX_LED2_PORT         (0x6180)
+#define ALIX_LED2_ON           (1<<25)
+#define ALIX_LED2_OFF          (1<<9)
+
+#define ALIX_LED3_PORT         (0x6180)
+#define ALIX_LED3_ON           (1<<27)
+#define ALIX_LED3_OFF          (1<<11)
+
+
+static struct platform_device *pdev;
+
+static void alix_led_set_1(struct led_classdev *led_cdev,
+               enum led_brightness value)
+{
+       if (value)
+               outl(ALIX_LED1_ON, ALIX_LED1_PORT);
+       else
+               outl(ALIX_LED1_OFF, ALIX_LED1_PORT);
+}
+
+static void alix_led_set_2(struct led_classdev *led_cdev,
+               enum led_brightness value)
+{
+       if (value)
+               outl(ALIX_LED2_ON, ALIX_LED2_PORT);
+       else
+               outl(ALIX_LED2_OFF, ALIX_LED2_PORT);
+}
+
+static void alix_led_set_3(struct led_classdev *led_cdev,
+               enum led_brightness value)
+{
+       if (value)
+               outl(ALIX_LED3_ON, ALIX_LED3_PORT);
+       else
+               outl(ALIX_LED3_OFF, ALIX_LED3_PORT);
+}
+
+static struct led_classdev alix_led_1 = {
+       .name           = "alix:1",
+       .brightness_set = alix_led_set_1,
+};
+
+static struct led_classdev alix_led_2 = {
+       .name           = "alix:2",
+       .brightness_set = alix_led_set_2,
+};
+
+static struct led_classdev alix_led_3 = {
+       .name           = "alix:3",
+       .brightness_set = alix_led_set_3,
+};
+
+
+#ifdef CONFIG_PM
+static int alix_led_suspend(struct platform_device *dev,
+               pm_message_t state)
+{
+       led_classdev_suspend(&alix_led_1);
+       led_classdev_suspend(&alix_led_2);
+       led_classdev_suspend(&alix_led_3);
+       return 0;
+}
+
+static int alix_led_resume(struct platform_device *dev)
+{
+       led_classdev_resume(&alix_led_1);
+       led_classdev_resume(&alix_led_2);
+       led_classdev_resume(&alix_led_3);
+       return 0;
+}
+#else
+#define alix_led_suspend NULL
+#define alix_led_resume NULL
+#endif
+
+static int alix_led_probe(struct platform_device *pdev)
+{
+       int ret;
+
+       ret = led_classdev_register(&pdev->dev, &alix_led_1);
+       if (ret >= 0)
+       {
+               ret = led_classdev_register(&pdev->dev, &alix_led_2);
+               if (ret >= 0)
+               {
+                       ret = led_classdev_register(&pdev->dev, &alix_led_3);
+                       if (ret < 0)
+                               led_classdev_unregister(&alix_led_2);
+               }
+               if (ret < 0)
+                       led_classdev_unregister(&alix_led_1);
+       }
+       return ret;
+}
+
+static int alix_led_remove(struct platform_device *pdev)
+{
+       led_classdev_unregister(&alix_led_1);
+       led_classdev_unregister(&alix_led_2);
+       led_classdev_unregister(&alix_led_3);
+       return 0;
+}
+
+static struct platform_driver alix_led_driver = {
+       .probe          = alix_led_probe,
+       .remove         = alix_led_remove,
+       .suspend        = alix_led_suspend,
+       .resume         = alix_led_resume,
+       .driver         = {
+               .name           = DRVNAME,
+               .owner          = THIS_MODULE,
+       },
+};
+
+static int __init alix_led_init(void)
+{
+       int ret;
+
+       ret = platform_driver_register(&alix_led_driver);
+       if (ret < 0)
+               goto out;
+
+       pdev = platform_device_register_simple(DRVNAME, -1, NULL, 0);
+       if (IS_ERR(pdev)) {
+               ret = PTR_ERR(pdev);
+               platform_driver_unregister(&alix_led_driver);
+               goto out;
+       }
+
+out:
+       return ret;
+}
+
+static void __exit alix_led_exit(void)
+{
+       platform_device_unregister(pdev);
+       platform_driver_unregister(&alix_led_driver);
+}
+
+module_init(alix_led_init);
+module_exit(alix_led_exit);
+
+MODULE_AUTHOR("Petr Liebman");
+MODULE_DESCRIPTION("PCEngines ALIX LED driver");
+MODULE_LICENSE("GPL");
+

diff --git a/target/linux/generic-2.6/files-2.6.32/drivers/leds/ledtrig-morse.c b/target/linux/generic-2.6/files-2.6.32/drivers/leds/ledtrig-morse.c
new file mode 100644 (file)
index 0000000..cb47480
--- /dev/null
+++ b/target/linux/generic-2.6/files-2.6.32/drivers/leds/ledtrig-morse.c
@@ -0,0 +1,365 @@
+/*
+ *  LED Morse Trigger
+ *
+ *  Copyright (C) 2007 Gabor Juhos <juhosg at openwrt.org>
+ *
+ *  This file was based on: drivers/led/ledtrig-timer.c
+ *     Copyright 2005-2006 Openedhand Ltd.
+ *     Author: Richard Purdie <rpurdie@openedhand.com>
+ *
+ *  also based on the patch '[PATCH] 2.5.59 morse code panics' posted
+ *  in the LKML by Tomas Szepe at Thu, 30 Jan 2003
+ *     Copyright (C) 2002 Andrew Rodland <arodland@noln.com>
+ *     Copyright (C) 2003 Tomas Szepe <szepe@pinerecords.com>
+ *
+ *  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 <linux/kernel.h>
+#include <linux/version.h>
+#include <linux/module.h>
+#include <linux/jiffies.h>
+#include <linux/init.h>
+#include <linux/list.h>
+#include <linux/spinlock.h>
+#include <linux/device.h>
+#include <linux/sysdev.h>
+#include <linux/timer.h>
+#include <linux/ctype.h>
+#include <linux/leds.h>
+
+#include "leds.h"
+
+#define MORSE_DELAY_BASE       (HZ/2)
+
+#define MORSE_STATE_BLINK_START        0
+#define MORSE_STATE_BLINK_STOP 1
+
+#define MORSE_DIT_LEN  1
+#define MORSE_DAH_LEN  3
+#define MORSE_SPACE_LEN        7
+
+struct morse_trig_data {
+       unsigned long delay;
+       char *msg;
+
+       unsigned char morse;
+       unsigned char state;
+       char *msgpos;
+       struct timer_list timer;
+};
+
+const unsigned char morsetable[] = {
+       0122, 0, 0310, 0, 0, 0163,                              /* "#$%&' */
+       055, 0155, 0, 0, 0163, 0141, 0152, 0051,                /* ()*+,-./ */
+       077, 076, 074, 070, 060, 040, 041, 043, 047, 057,       /* 0-9 */
+       0107, 0125, 0, 0061, 0, 0114, 0,                        /* :;<=>?@ */
+       006, 021, 025, 011, 002, 024, 013, 020, 004,            /* A-I */
+       036, 015, 022, 007, 005, 017, 026, 033, 012,            /* J-R */
+       010, 003, 014, 030, 016, 031, 035, 023,                 /* S-Z */
+       0, 0, 0, 0, 0154                                        /* [\]^_ */
+};
+
+static inline unsigned char tomorse(char c) {
+       if (c >= 'a' && c <= 'z')
+               c = c - 'a' + 'A';
+       if (c >= '"' && c <= '_') {
+               return morsetable[c - '"'];
+       } else
+               return 0;
+}
+
+static inline unsigned long dit_len(struct morse_trig_data *morse_data)
+{
+       return MORSE_DIT_LEN*morse_data->delay;
+}
+
+static inline unsigned long dah_len(struct morse_trig_data *morse_data)
+{
+       return MORSE_DAH_LEN*morse_data->delay;
+}
+
+static inline unsigned long space_len(struct morse_trig_data *morse_data)
+{
+       return MORSE_SPACE_LEN*morse_data->delay;
+}
+
+static void morse_timer_function(unsigned long data)
+{
+       struct led_classdev *led_cdev = (struct led_classdev *)data;
+       struct morse_trig_data *morse_data = led_cdev->trigger_data;
+       unsigned long brightness = LED_OFF;
+       unsigned long delay = 0;
+
+       if (!morse_data->msg)
+               goto set_led;
+
+       switch (morse_data->state) {
+       case MORSE_STATE_BLINK_START:
+               /* Starting a new blink.  We have a valid code in morse. */
+               delay = (morse_data->morse & 001) ? dah_len(morse_data):
+                       dit_len(morse_data);
+               brightness = LED_FULL;
+               morse_data->state = MORSE_STATE_BLINK_STOP;
+               morse_data->morse >>= 1;
+               break;
+       case MORSE_STATE_BLINK_STOP:
+               /* Coming off of a blink. */
+               morse_data->state = MORSE_STATE_BLINK_START;
+
+               if (morse_data->morse > 1) {
+                       /* Not done yet, just a one-dit pause. */
+                       delay = dit_len(morse_data);
+                       break;
+               }
+
+               /* Get a new char, figure out how much space. */
+               /* First time through */
+               if (!morse_data->msgpos)
+                       morse_data->msgpos = (char *)morse_data->msg;
+
+               if (!*morse_data->msgpos) {
+                       /* Repeating */
+                       morse_data->msgpos = (char *)morse_data->msg;
+                       delay = space_len(morse_data);
+               } else {
+                       /* Inter-letter space */
+                       delay = dah_len(morse_data);
+               }
+
+               if (!(morse_data->morse = tomorse(*morse_data->msgpos))) {
+                       delay = space_len(morse_data);
+                       /* And get us back here */
+                       morse_data->state = MORSE_STATE_BLINK_STOP;
+               }
+               morse_data->msgpos++;
+               break;
+       }
+
+       mod_timer(&morse_data->timer, jiffies + msecs_to_jiffies(delay));
+
+set_led:
+       led_set_brightness(led_cdev, brightness);
+}
+
+static ssize_t _morse_delay_show(struct led_classdev *led_cdev, char *buf)
+{
+       struct morse_trig_data *morse_data = led_cdev->trigger_data;
+
+       sprintf(buf, "%lu\n", morse_data->delay);
+
+       return strlen(buf) + 1;
+}
+
+static ssize_t _morse_delay_store(struct led_classdev *led_cdev,
+               const char *buf, size_t size)
+{
+       struct morse_trig_data *morse_data = led_cdev->trigger_data;
+       char *after;
+       unsigned long state = simple_strtoul(buf, &after, 10);
+       size_t count = after - buf;
+       int ret = -EINVAL;
+
+       if (*after && isspace(*after))
+               count++;
+
+       if (count == size) {
+               morse_data->delay = state;
+               mod_timer(&morse_data->timer, jiffies + 1);
+               ret = count;
+       }
+
+       return ret;
+}
+
+static ssize_t _morse_msg_show(struct led_classdev *led_cdev, char *buf)
+{
+       struct morse_trig_data *morse_data = led_cdev->trigger_data;
+
+       if (!morse_data->msg)
+               sprintf(buf, "<none>\n");
+       else
+               sprintf(buf, "%s\n", morse_data->msg);
+
+       return strlen(buf) + 1;
+}
+
+static ssize_t _morse_msg_store(struct led_classdev *led_cdev,
+               const char *buf, size_t size)
+{
+       struct morse_trig_data *morse_data = led_cdev->trigger_data;
+       char *m;
+
+       m = kmalloc(size, GFP_KERNEL);
+       if (!m)
+               return -ENOMEM;
+
+       memcpy(m,buf,size);
+       m[size]='\0';
+
+       if (morse_data->msg)
+               kfree(morse_data->msg);
+
+       morse_data->msg = m;
+       morse_data->msgpos = NULL;
+       morse_data->state = MORSE_STATE_BLINK_STOP;
+
+       mod_timer(&morse_data->timer, jiffies + 1);
+
+       return size;
+}
+
+#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,23)
+static ssize_t morse_delay_show(struct device *dev,
+               struct device_attribute *attr, char *buf)
+{
+       struct led_classdev *led_cdev = dev_get_drvdata(dev);
+
+       return _morse_delay_show(led_cdev, buf);
+}
+
+static ssize_t morse_delay_store(struct device *dev,
+               struct device_attribute *attr, const char *buf, size_t size)
+{
+       struct led_classdev *led_cdev = dev_get_drvdata(dev);
+
+       return _morse_delay_store(led_cdev, buf, size);
+}
+
+static ssize_t morse_msg_show(struct device *dev,
+               struct device_attribute *attr, char *buf)
+{
+       struct led_classdev *led_cdev = dev_get_drvdata(dev);
+
+       return _morse_msg_show(led_cdev, buf);
+}
+
+static ssize_t morse_msg_store(struct device *dev,
+               struct device_attribute *attr, const char *buf, size_t size)
+{
+       struct led_classdev *led_cdev = dev_get_drvdata(dev);
+
+       return _morse_msg_store(led_cdev, buf, size);
+}
+
+static DEVICE_ATTR(delay, 0644, morse_delay_show, morse_delay_store);
+static DEVICE_ATTR(message, 0644, morse_msg_show, morse_msg_store);
+
+#define led_device_create_file(leddev, attr) \
+       device_create_file(leddev->dev, &dev_attr_ ## attr)
+#define led_device_remove_file(leddev, attr) \
+       device_remove_file(leddev->dev, &dev_attr_ ## attr)
+
+#else
+static ssize_t morse_delay_show(struct class_device *dev, char *buf)
+{
+       struct led_classdev *led_cdev = class_get_devdata(dev);
+
+       return _morse_delay_show(led_cdev, buf);
+}
+
+static ssize_t morse_delay_store(struct class_device *dev, const char *buf,
+               size_t size)
+{
+       struct led_classdev *led_cdev = class_get_devdata(dev);
+
+       return _morse_delay_store(led_cdev, buf, size);
+}
+
+static ssize_t morse_msg_show(struct class_device *dev, char *buf)
+{
+       struct led_classdev *led_cdev = class_get_devdata(dev);
+
+       return _morse_msg_show(led_cdev, buf);
+}
+
+static ssize_t morse_msg_store(struct class_device *dev, const char *buf,
+                               size_t size)
+{
+       struct led_classdev *led_cdev = class_get_devdata(dev);
+
+       return _morse_msg_store(led_cdev, buf, size);
+}
+
+static CLASS_DEVICE_ATTR(delay, 0644, morse_delay_show, morse_delay_store);
+static CLASS_DEVICE_ATTR(message, 0644, morse_msg_show, morse_msg_store);
+
+#define led_device_create_file(leddev, attr) \
+       class_device_create_file(leddev->class_dev, &class_device_attr_ ## attr)
+#define led_device_remove_file(leddev, attr) \
+       class_device_remove_file(leddev->class_dev, &class_device_attr_ ## attr)
+
+#endif
+
+static void morse_trig_activate(struct led_classdev *led_cdev)
+{
+       struct morse_trig_data *morse_data;
+       int rc;
+
+       morse_data = kzalloc(sizeof(*morse_data), GFP_KERNEL);
+       if (!morse_data)
+               return;
+
+       morse_data->delay = MORSE_DELAY_BASE;
+       init_timer(&morse_data->timer);
+       morse_data->timer.function = morse_timer_function;
+       morse_data->timer.data = (unsigned long)led_cdev;
+
+       rc = led_device_create_file(led_cdev, delay);
+       if (rc) goto err;
+
+       rc = led_device_create_file(led_cdev, message);
+       if (rc) goto err_delay;
+
+       led_cdev->trigger_data = morse_data;
+
+       return;
+
+err_delay:
+       led_device_remove_file(led_cdev, delay);
+err:
+       kfree(morse_data);
+}
+
+static void morse_trig_deactivate(struct led_classdev *led_cdev)
+{
+       struct morse_trig_data *morse_data = led_cdev->trigger_data;
+
+       if (!morse_data)
+               return;
+
+       led_device_remove_file(led_cdev, message);
+       led_device_remove_file(led_cdev, delay);
+
+       del_timer_sync(&morse_data->timer);
+       if (morse_data->msg)
+               kfree(morse_data->msg);
+
+       kfree(morse_data);
+}
+
+static struct led_trigger morse_led_trigger = {
+       .name           = "morse",
+       .activate       = morse_trig_activate,
+       .deactivate     = morse_trig_deactivate,
+};
+
+static int __init morse_trig_init(void)
+{
+       return led_trigger_register(&morse_led_trigger);
+}
+
+static void __exit morse_trig_exit(void)
+{
+       led_trigger_unregister(&morse_led_trigger);
+}
+
+module_init(morse_trig_init);
+module_exit(morse_trig_exit);
+
+MODULE_AUTHOR("Gabor Juhos <juhosg at openwrt.org>");
+MODULE_DESCRIPTION("Morse LED trigger");
+MODULE_LICENSE("GPL");

diff --git a/target/linux/generic-2.6/files-2.6.32/drivers/leds/ledtrig-netdev.c b/target/linux/generic-2.6/files-2.6.32/drivers/leds/ledtrig-netdev.c
new file mode 100644 (file)
index 0000000..4193e4e
--- /dev/null
+++ b/target/linux/generic-2.6/files-2.6.32/drivers/leds/ledtrig-netdev.c
@@ -0,0 +1,454 @@
+/*
+ * LED Kernel Netdev Trigger
+ *
+ * Toggles the LED to reflect the link and traffic state of a named net device
+ *
+ * Copyright 2007 Oliver Jowett <oliver@opencloud.com>
+ *
+ * Derived from ledtrig-timer.c which is:
+ *  Copyright 2005-2006 Openedhand Ltd.
+ *  Author: Richard Purdie <rpurdie@openedhand.com>
+ *
+ * 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 <linux/module.h>
+#include <linux/jiffies.h>
+#include <linux/kernel.h>
+#include <linux/init.h>
+#include <linux/list.h>
+#include <linux/spinlock.h>
+#include <linux/device.h>
+#include <linux/sysdev.h>
+#include <linux/netdevice.h>
+#include <linux/timer.h>
+#include <linux/ctype.h>
+#include <linux/leds.h>
+#include <linux/version.h>
+
+#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,26)
+#include <net/net_namespace.h>
+#endif
+
+#include "leds.h"
+
+/*
+ * Configurable sysfs attributes:
+ *
+ * device_name - network device name to monitor
+ *
+ * interval - duration of LED blink, in milliseconds
+ *
+ * mode - either "none" (LED is off) or a space separated list of one or more of:
+ *   link: LED's normal state reflects whether the link is up (has carrier) or not
+ *   tx:   LED blinks on transmitted data
+ *   rx:   LED blinks on receive data
+ * 
+ * Some suggestions:
+ *
+ *  Simple link status LED:
+ *  $ echo netdev >someled/trigger
+ *  $ echo eth0 >someled/device_name
+ *  $ echo link >someled/mode
+ *
+ *  Ethernet-style link/activity LED:
+ *  $ echo netdev >someled/trigger
+ *  $ echo eth0 >someled/device_name
+ *  $ echo "link tx rx" >someled/mode
+ *
+ *  Modem-style tx/rx LEDs:
+ *  $ echo netdev >led1/trigger
+ *  $ echo ppp0 >led1/device_name
+ *  $ echo tx >led1/mode
+ *  $ echo netdev >led2/trigger
+ *  $ echo ppp0 >led2/device_name
+ *  $ echo rx >led2/mode
+ *
+ */
+
+#define MODE_LINK 1
+#define MODE_TX   2
+#define MODE_RX   4
+
+struct led_netdev_data {
+       rwlock_t lock;
+
+       struct timer_list timer;
+       struct notifier_block notifier;
+
+       struct led_classdev *led_cdev;
+       struct net_device *net_dev;
+
+       char device_name[IFNAMSIZ];
+       unsigned interval;
+       unsigned mode;
+       unsigned link_up;
+       unsigned last_activity;
+};
+
+static void set_baseline_state(struct led_netdev_data *trigger_data)
+{
+       if ((trigger_data->mode & MODE_LINK) != 0 && trigger_data->link_up)
+               led_set_brightness(trigger_data->led_cdev, LED_FULL);
+       else
+               led_set_brightness(trigger_data->led_cdev, LED_OFF);
+
+       if ((trigger_data->mode & (MODE_TX | MODE_RX)) != 0 && trigger_data->link_up)
+               mod_timer(&trigger_data->timer, jiffies + trigger_data->interval);
+       else
+               del_timer(&trigger_data->timer);
+}
+
+static ssize_t led_device_name_show(struct device *dev,
+                                   struct device_attribute *attr, char *buf)
+{
+       struct led_classdev *led_cdev = dev_get_drvdata(dev);
+       struct led_netdev_data *trigger_data = led_cdev->trigger_data;
+
+       read_lock(&trigger_data->lock);
+       sprintf(buf, "%s\n", trigger_data->device_name);
+       read_unlock(&trigger_data->lock);
+
+       return strlen(buf) + 1;
+}
+
+#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,21)
+extern struct net init_net;
+#endif
+
+static ssize_t led_device_name_store(struct device *dev,
+                                    struct device_attribute *attr, const char *buf, size_t size)
+{
+       struct led_classdev *led_cdev = dev_get_drvdata(dev);
+       struct led_netdev_data *trigger_data = led_cdev->trigger_data;
+
+       if (size < 0 || size >= IFNAMSIZ)
+               return -EINVAL;
+
+       write_lock(&trigger_data->lock);
+
+       strcpy(trigger_data->device_name, buf);
+       if (size > 0 && trigger_data->device_name[size-1] == '\n')
+               trigger_data->device_name[size-1] = 0;
+
+       if (trigger_data->device_name[0] != 0) {
+               /* check for existing device to update from */
+#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,26)
+               trigger_data->net_dev = dev_get_by_name(&init_net, trigger_data->device_name);
+#else
+               trigger_data->net_dev = dev_get_by_name(trigger_data->device_name);
+#endif
+               if (trigger_data->net_dev != NULL)
+                       trigger_data->link_up = (dev_get_flags(trigger_data->net_dev) & IFF_LOWER_UP) != 0;
+               set_baseline_state(trigger_data); /* updates LEDs, may start timers */
+       }
+
+       write_unlock(&trigger_data->lock);
+       return size;
+}
+
+static DEVICE_ATTR(device_name, 0644, led_device_name_show, led_device_name_store);
+
+static ssize_t led_mode_show(struct device *dev,
+                            struct device_attribute *attr, char *buf)
+{
+       struct led_classdev *led_cdev = dev_get_drvdata(dev);
+       struct led_netdev_data *trigger_data = led_cdev->trigger_data;
+
+       read_lock(&trigger_data->lock);
+
+       if (trigger_data->mode == 0) {
+               strcpy(buf, "none\n");
+       } else {
+               if (trigger_data->mode & MODE_LINK)
+                       strcat(buf, "link ");
+               if (trigger_data->mode & MODE_TX)
+                       strcat(buf, "tx ");
+               if (trigger_data->mode & MODE_RX)
+                       strcat(buf, "rx ");
+               strcat(buf, "\n");
+       }
+
+       read_unlock(&trigger_data->lock);
+
+       return strlen(buf)+1;
+}
+
+static ssize_t led_mode_store(struct device *dev,
+                             struct device_attribute *attr, const char *buf, size_t size)
+{
+       struct led_classdev *led_cdev = dev_get_drvdata(dev);
+       struct led_netdev_data *trigger_data = led_cdev->trigger_data;
+       char copybuf[1024];
+       int new_mode = -1;
+       char *p, *token;
+
+       /* take a copy since we don't want to trash the inbound buffer when using strsep */
+       strncpy(copybuf, buf, sizeof(copybuf));
+       copybuf[1023] = 0;
+       p = copybuf;
+
+       while ((token = strsep(&p, " \t\n")) != NULL) {
+               if (!*token)
+                       continue;
+
+               if (new_mode == -1)
+                       new_mode = 0;
+
+               if (!strcmp(token, "none"))
+                       new_mode = 0;
+               else if (!strcmp(token, "tx"))
+                       new_mode |= MODE_TX;
+               else if (!strcmp(token, "rx"))
+                       new_mode |= MODE_RX;
+               else if (!strcmp(token, "link"))
+                       new_mode |= MODE_LINK;
+               else
+                       return -EINVAL;
+       }
+
+       if (new_mode == -1)
+               return -EINVAL;
+
+       write_lock(&trigger_data->lock);
+       trigger_data->mode = new_mode;
+       set_baseline_state(trigger_data);
+       write_unlock(&trigger_data->lock);
+
+       return size;
+}
+
+static DEVICE_ATTR(mode, 0644, led_mode_show, led_mode_store);
+
+static ssize_t led_interval_show(struct device *dev,
+                                struct device_attribute *attr, char *buf)
+{
+       struct led_classdev *led_cdev = dev_get_drvdata(dev);
+       struct led_netdev_data *trigger_data = led_cdev->trigger_data;
+
+       read_lock(&trigger_data->lock);
+       sprintf(buf, "%u\n", jiffies_to_msecs(trigger_data->interval));
+       read_unlock(&trigger_data->lock);
+
+       return strlen(buf) + 1;
+}
+
+static ssize_t led_interval_store(struct device *dev,
+                                 struct device_attribute *attr, const char *buf, size_t size)
+{
+       struct led_classdev *led_cdev = dev_get_drvdata(dev);
+       struct led_netdev_data *trigger_data = led_cdev->trigger_data;
+       int ret = -EINVAL;
+       char *after;
+       unsigned long value = simple_strtoul(buf, &after, 10);
+       size_t count = after - buf;
+
+       if (*after && isspace(*after))
+               count++;
+
+       /* impose some basic bounds on the timer interval */
+       if (count == size && value >= 5 && value <= 10000) {
+               write_lock(&trigger_data->lock);
+               trigger_data->interval = msecs_to_jiffies(value);
+               set_baseline_state(trigger_data); // resets timer
+               write_unlock(&trigger_data->lock);
+               ret = count;
+       }
+
+       return ret;
+}
+
+static DEVICE_ATTR(interval, 0644, led_interval_show, led_interval_store);
+
+static int netdev_trig_notify(struct notifier_block *nb,
+                             unsigned long evt,
+                             void *dv)
+{
+       struct net_device *dev = dv;
+       struct led_netdev_data *trigger_data = container_of(nb, struct led_netdev_data, notifier);
+
+       if (evt != NETDEV_UP && evt != NETDEV_DOWN && evt != NETDEV_CHANGE && evt != NETDEV_REGISTER && evt != NETDEV_UNREGISTER)
+               return NOTIFY_DONE;
+
+       write_lock(&trigger_data->lock);
+
+       if (strcmp(dev->name, trigger_data->device_name))
+               goto done;
+
+       if (evt == NETDEV_REGISTER) {
+               if (trigger_data->net_dev != NULL)
+                       dev_put(trigger_data->net_dev);
+               dev_hold(dev);
+               trigger_data->net_dev = dev;
+               trigger_data->link_up = 0;
+               goto done;
+       }
+
+       if (evt == NETDEV_UNREGISTER && trigger_data->net_dev != NULL) {
+               dev_put(trigger_data->net_dev);
+               trigger_data->net_dev = NULL;
+               goto done;
+       }
+
+       /* UP / DOWN / CHANGE */
+
+       trigger_data->link_up = (evt != NETDEV_DOWN && netif_carrier_ok(dev));
+       set_baseline_state(trigger_data);
+
+done:
+       write_unlock(&trigger_data->lock);
+       return NOTIFY_DONE;
+}
+
+/* here's the real work! */
+static void netdev_trig_timer(unsigned long arg)
+{
+       struct led_netdev_data *trigger_data = (struct led_netdev_data *)arg;
+       struct net_device_stats *dev_stats;
+       unsigned new_activity;
+
+       write_lock(&trigger_data->lock);
+
+       if (!trigger_data->link_up || !trigger_data->net_dev || (trigger_data->mode & (MODE_TX | MODE_RX)) == 0) {
+               /* we don't need to do timer work, just reflect link state. */
+               led_set_brightness(trigger_data->led_cdev, ((trigger_data->mode & MODE_LINK) != 0 && trigger_data->link_up) ? LED_FULL : LED_OFF);
+               goto no_restart;
+       }
+#ifdef CONFIG_COMPAT_NET_DEV_OPS
+       dev_stats = trigger_data->net_dev->get_stats(trigger_data->net_dev);
+#else
+       dev_stats = trigger_data->net_dev->netdev_ops->ndo_get_stats(trigger_data->net_dev);
+#endif
+       new_activity =
+               ((trigger_data->mode & MODE_TX) ? dev_stats->tx_packets : 0) +
+               ((trigger_data->mode & MODE_RX) ? dev_stats->rx_packets : 0);
+
+       if (trigger_data->mode & MODE_LINK) {
+               /* base state is ON (link present) */
+               /* if there's no link, we don't get this far and the LED is off */
+
+               /* OFF -> ON always */
+               /* ON -> OFF on activity */
+               if (trigger_data->led_cdev->brightness == LED_OFF) {
+                       led_set_brightness(trigger_data->led_cdev, LED_FULL);
+               } else if (trigger_data->last_activity != new_activity) {
+                       led_set_brightness(trigger_data->led_cdev, LED_OFF);
+               }
+       } else {
+               /* base state is OFF */
+               /* ON -> OFF always */
+               /* OFF -> ON on activity */
+               if (trigger_data->led_cdev->brightness == LED_FULL) {
+                       led_set_brightness(trigger_data->led_cdev, LED_OFF);
+               } else if (trigger_data->last_activity != new_activity) {
+                       led_set_brightness(trigger_data->led_cdev, LED_FULL);
+               }
+       }
+
+       trigger_data->last_activity = new_activity;
+       mod_timer(&trigger_data->timer, jiffies + trigger_data->interval);
+
+no_restart:
+       write_unlock(&trigger_data->lock);
+}
+
+static void netdev_trig_activate(struct led_classdev *led_cdev)
+{
+       struct led_netdev_data *trigger_data;
+       int rc;
+
+       trigger_data = kzalloc(sizeof(struct led_netdev_data), GFP_KERNEL);
+       if (!trigger_data)
+               return;
+
+       rwlock_init(&trigger_data->lock);
+
+       trigger_data->notifier.notifier_call = netdev_trig_notify;
+       trigger_data->notifier.priority = 10;
+
+       setup_timer(&trigger_data->timer, netdev_trig_timer, (unsigned long) trigger_data);
+
+       trigger_data->led_cdev = led_cdev;
+       trigger_data->net_dev = NULL;
+       trigger_data->device_name[0] = 0;
+
+       trigger_data->mode = 0;
+       trigger_data->interval = msecs_to_jiffies(50);
+       trigger_data->link_up = 0;
+       trigger_data->last_activity = 0;
+
+       led_cdev->trigger_data = trigger_data;
+
+       rc = device_create_file(led_cdev->dev, &dev_attr_device_name);
+       if (rc)
+               goto err_out;
+       rc = device_create_file(led_cdev->dev, &dev_attr_mode);
+       if (rc)
+               goto err_out_device_name;
+       rc = device_create_file(led_cdev->dev, &dev_attr_interval);
+       if (rc)
+               goto err_out_mode;
+
+       register_netdevice_notifier(&trigger_data->notifier);
+       return;
+
+err_out_mode:
+       device_remove_file(led_cdev->dev, &dev_attr_mode);
+err_out_device_name:
+       device_remove_file(led_cdev->dev, &dev_attr_device_name);
+err_out:
+       led_cdev->trigger_data = NULL;
+       kfree(trigger_data);
+}
+
+static void netdev_trig_deactivate(struct led_classdev *led_cdev)
+{
+       struct led_netdev_data *trigger_data = led_cdev->trigger_data;
+
+       if (trigger_data) {
+               unregister_netdevice_notifier(&trigger_data->notifier);
+
+               device_remove_file(led_cdev->dev, &dev_attr_device_name);
+               device_remove_file(led_cdev->dev, &dev_attr_mode);
+               device_remove_file(led_cdev->dev, &dev_attr_interval);
+
+               write_lock(&trigger_data->lock);
+
+               if (trigger_data->net_dev) {
+                       dev_put(trigger_data->net_dev);
+                       trigger_data->net_dev = NULL;
+               }
+
+               write_unlock(&trigger_data->lock);
+
+               del_timer_sync(&trigger_data->timer);
+
+               kfree(trigger_data);
+       }
+}
+
+static struct led_trigger netdev_led_trigger = {
+       .name     = "netdev",
+       .activate = netdev_trig_activate,
+       .deactivate = netdev_trig_deactivate,
+};
+
+static int __init netdev_trig_init(void)
+{
+       return led_trigger_register(&netdev_led_trigger);
+}
+
+static void __exit netdev_trig_exit(void)
+{
+       led_trigger_unregister(&netdev_led_trigger);
+}
+
+module_init(netdev_trig_init);
+module_exit(netdev_trig_exit);
+
+MODULE_AUTHOR("Oliver Jowett <oliver@opencloud.com>");
+MODULE_DESCRIPTION("Netdev LED trigger");
+MODULE_LICENSE("GPL");

diff --git a/target/linux/generic-2.6/files-2.6.32/include/linux/glamo-engine.h b/target/linux/generic-2.6/files-2.6.32/include/linux/glamo-engine.h
new file mode 100644 (file)
index 0000000..516d45f
--- /dev/null
+++ b/target/linux/generic-2.6/files-2.6.32/include/linux/glamo-engine.h
@@ -0,0 +1,27 @@
+#ifndef __GLAMO_ENGINE_H
+#define __GLAMO_ENGINE_H
+
+enum glamo_engine {
+       GLAMO_ENGINE_CAPTURE = 0,
+       GLAMO_ENGINE_ISP = 1,
+       GLAMO_ENGINE_JPEG = 2,
+       GLAMO_ENGINE_MPEG_ENC = 3,
+       GLAMO_ENGINE_MPEG_DEC = 4,
+       GLAMO_ENGINE_LCD = 5,
+       GLAMO_ENGINE_CMDQ = 6,
+       GLAMO_ENGINE_2D = 7,
+       GLAMO_ENGINE_3D = 8,
+       GLAMO_ENGINE_MMC = 9,
+       GLAMO_ENGINE_MICROP0 = 10,
+       GLAMO_ENGINE_RISC = 11,
+       GLAMO_ENGINE_MICROP1_MPEG_ENC = 12,
+       GLAMO_ENGINE_MICROP1_MPEG_DEC = 13,
+#if 0
+       GLAMO_ENGINE_H264_DEC = 14,
+       GLAMO_ENGINE_RISC1 = 15,
+       GLAMO_ENGINE_SPI = 16,
+#endif
+       __NUM_GLAMO_ENGINES
+};
+
+#endif

diff --git a/target/linux/generic-2.6/files-2.6.32/include/linux/glamofb.h b/target/linux/generic-2.6/files-2.6.32/include/linux/glamofb.h
new file mode 100644 (file)
index 0000000..5f9fab5
--- /dev/null
+++ b/target/linux/generic-2.6/files-2.6.32/include/linux/glamofb.h
@@ -0,0 +1,35 @@
+#ifndef _LINUX_GLAMOFB_H
+#define _LINUX_GLAMOFB_H
+
+#include <linux/fb.h>
+
+#ifdef __KERNEL__
+
+struct glamo_core;
+struct glamofb_handle;
+
+struct glamo_fb_platform_data {
+    int width, height;
+
+    int num_modes;
+    struct fb_videomode *modes;
+
+    struct glamo_core *core;
+};
+
+int glamofb_cmd_mode(struct glamofb_handle *gfb, int on);
+int glamofb_cmd_write(struct glamofb_handle *gfb, u_int16_t val);
+
+#ifdef CONFIG_MFD_GLAMO
+void glamo_lcm_reset(struct platform_device *pdev, int level);
+#else
+#define glamo_lcm_reset(...) do {} while (0)
+#endif
+
+#endif
+
+#define GLAMOFB_ENGINE_ENABLE _IOW('F', 0x1, __u32)
+#define GLAMOFB_ENGINE_DISABLE _IOW('F', 0x2, __u32)
+#define GLAMOFB_ENGINE_RESET _IOW('F', 0x3, __u32)
+
+#endif

diff --git a/target/linux/generic-2.6/files-2.6.32/include/linux/gpio_buttons.h b/target/linux/generic-2.6/files-2.6.32/include/linux/gpio_buttons.h
new file mode 100644 (file)
index 0000000..f5e6297
--- /dev/null
+++ b/target/linux/generic-2.6/files-2.6.32/include/linux/gpio_buttons.h
@@ -0,0 +1,35 @@
+/*
+ *  Definitions for the GPIO buttons interface driver
+ *
+ *  Copyright (C) 2007,2008 Gabor Juhos <juhosg at openwrt.org>
+ *
+ *  This file was based on: /include/linux/gpio_keys.h
+ *     The original gpio_keys.h seems not to have a license.
+ *
+ *  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 _GPIO_BUTTONS_H_
+#define _GPIO_BUTTONS_H_
+
+struct gpio_button {
+       int     gpio;           /* GPIO line number */
+       int     active_low;
+       char    *desc;          /* button description */
+       int     type;           /* input event type (EV_KEY, EV_SW) */
+       int     code;           /* input event code (KEY_*, SW_*) */
+       int     count;
+       int     threshold;      /* count threshold */
+};
+
+struct gpio_buttons_platform_data {
+       struct gpio_button *buttons;
+       int     nbuttons;               /* number of buttons */
+       int     poll_interval;          /* polling interval */
+};
+
+#endif /* _GPIO_BUTTONS_H_ */
+

diff --git a/target/linux/generic-2.6/files-2.6.32/include/linux/gpio_dev.h b/target/linux/generic-2.6/files-2.6.32/include/linux/gpio_dev.h
new file mode 100644 (file)
index 0000000..3f3c9c7
--- /dev/null
+++ b/target/linux/generic-2.6/files-2.6.32/include/linux/gpio_dev.h
@@ -0,0 +1,11 @@
+#ifndef _GPIODEV_H__
+#define _GPIODEV_H__
+
+#define IOC_GPIODEV_MAGIC  'B'
+#define GPIO_GET        _IO(IOC_GPIODEV_MAGIC, 10)
+#define GPIO_SET        _IO(IOC_GPIODEV_MAGIC, 11)
+#define GPIO_CLEAR      _IO(IOC_GPIODEV_MAGIC, 12)
+#define GPIO_DIR_IN     _IO(IOC_GPIODEV_MAGIC, 13)
+#define GPIO_DIR_OUT    _IO(IOC_GPIODEV_MAGIC, 14)
+
+#endif

diff --git a/target/linux/generic-2.6/patches-2.6.32/001-squashfs_move_zlib_decomp.patch b/target/linux/generic-2.6/patches-2.6.32/001-squashfs_move_zlib_decomp.patch
new file mode 100644 (file)
index 0000000..9409679
--- /dev/null
+++ b/target/linux/generic-2.6/patches-2.6.32/001-squashfs_move_zlib_decomp.patch
@@ -0,0 +1,244 @@
+From 6c4419d997d4431bb62e73475cd6b084e83efbd1 Mon Sep 17 00:00:00 2001
+From: Phillip Lougher <phillip@lougher.demon.co.uk>
+Date: Tue, 22 Sep 2009 19:25:24 +0100
+Subject: [PATCH] Squashfs: move zlib decompression wrapper code into a separate file
+
+Signed-off-by: Phillip Lougher <phillip@lougher.demon.co.uk>
+---
+ fs/squashfs/Makefile       |    2 +-
+ fs/squashfs/block.c        |   74 ++----------------------------
+ fs/squashfs/squashfs.h     |    4 ++
+ fs/squashfs/zlib_wrapper.c |  109 ++++++++++++++++++++++++++++++++++++++++++++
+ 4 files changed, 118 insertions(+), 71 deletions(-)
+ create mode 100644 fs/squashfs/zlib_wrapper.c
+
+--- a/fs/squashfs/Makefile
++++ b/fs/squashfs/Makefile
+@@ -4,4 +4,4 @@
+ 
+ obj-$(CONFIG_SQUASHFS) += squashfs.o
+ squashfs-y += block.o cache.o dir.o export.o file.o fragment.o id.o inode.o
+-squashfs-y += namei.o super.o symlink.o
++squashfs-y += namei.o super.o symlink.o zlib_wrapper.o
+--- a/fs/squashfs/block.c
++++ b/fs/squashfs/block.c
+@@ -29,7 +29,6 @@
+ #include <linux/fs.h>
+ #include <linux/vfs.h>
+ #include <linux/slab.h>
+-#include <linux/mutex.h>
+ #include <linux/string.h>
+ #include <linux/buffer_head.h>
+ #include <linux/zlib.h>
+@@ -153,72 +152,10 @@ int squashfs_read_data(struct super_bloc
+       }
+ 
+       if (compressed) {
+-              int zlib_err = 0, zlib_init = 0;
+-
+-              /*
+-               * Uncompress block.
+-               */
+-
+-              mutex_lock(&msblk->read_data_mutex);
+-
+-              msblk->stream.avail_out = 0;
+-              msblk->stream.avail_in = 0;
+-
+-              bytes = length;
+-              do {
+-                      if (msblk->stream.avail_in == 0 && k < b) {
+-                              avail = min(bytes, msblk->devblksize - offset);
+-                              bytes -= avail;
+-                              wait_on_buffer(bh[k]);
+-                              if (!buffer_uptodate(bh[k]))
+-                                      goto release_mutex;
+-
+-                              if (avail == 0) {
+-                                      offset = 0;
+-                                      put_bh(bh[k++]);
+-                                      continue;
+-                              }
+-
+-                              msblk->stream.next_in = bh[k]->b_data + offset;
+-                              msblk->stream.avail_in = avail;
+-                              offset = 0;
+-                      }
+-
+-                      if (msblk->stream.avail_out == 0 && page < pages) {
+-                              msblk->stream.next_out = buffer[page++];
+-                              msblk->stream.avail_out = PAGE_CACHE_SIZE;
+-                      }
+-
+-                      if (!zlib_init) {
+-                              zlib_err = zlib_inflateInit(&msblk->stream);
+-                              if (zlib_err != Z_OK) {
+-                                      ERROR("zlib_inflateInit returned"
+-                                              " unexpected result 0x%x,"
+-                                              " srclength %d\n", zlib_err,
+-                                              srclength);
+-                                      goto release_mutex;
+-                              }
+-                              zlib_init = 1;
+-                      }
+-
+-                      zlib_err = zlib_inflate(&msblk->stream, Z_SYNC_FLUSH);
+-
+-                      if (msblk->stream.avail_in == 0 && k < b)
+-                              put_bh(bh[k++]);
+-              } while (zlib_err == Z_OK);
+-
+-              if (zlib_err != Z_STREAM_END) {
+-                      ERROR("zlib_inflate error, data probably corrupt\n");
+-                      goto release_mutex;
+-              }
+-
+-              zlib_err = zlib_inflateEnd(&msblk->stream);
+-              if (zlib_err != Z_OK) {
+-                      ERROR("zlib_inflate error, data probably corrupt\n");
+-                      goto release_mutex;
+-              }
+-              length = msblk->stream.total_out;
+-              mutex_unlock(&msblk->read_data_mutex);
++              length = zlib_uncompress(msblk, buffer, bh, b, offset, length,
++                      srclength, pages);
++              if (length < 0)
++                      goto read_failure;
+       } else {
+               /*
+                * Block is uncompressed.
+@@ -255,9 +192,6 @@ int squashfs_read_data(struct super_bloc
+       kfree(bh);
+       return length;
+ 
+-release_mutex:
+-      mutex_unlock(&msblk->read_data_mutex);
+-
+ block_release:
+       for (; k < b; k++)
+               put_bh(bh[k]);
+--- a/fs/squashfs/squashfs.h
++++ b/fs/squashfs/squashfs.h
+@@ -70,6 +70,10 @@ extern struct inode *squashfs_iget(struc
+                               unsigned int);
+ extern int squashfs_read_inode(struct inode *, long long);
+ 
++/* zlib_wrapper.c */
++extern int zlib_uncompress(struct squashfs_sb_info *, void **,
++                              struct buffer_head **, int, int, int, int, int);
++
+ /*
+  * Inodes and files operations
+  */
+--- /dev/null
++++ b/fs/squashfs/zlib_wrapper.c
+@@ -0,0 +1,109 @@
++/*
++ * Squashfs - a compressed read only filesystem for Linux
++ *
++ * Copyright (c) 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009
++ * Phillip Lougher <phillip@lougher.demon.co.uk>
++ *
++ * 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,
++ * or (at your option) any later version.
++ *
++ * This program is distributed in the hope that 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, 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
++ *
++ * zlib_wrapper.c
++ */
++
++
++#include <linux/mutex.h>
++#include <linux/buffer_head.h>
++#include <linux/zlib.h>
++
++#include "squashfs_fs.h"
++#include "squashfs_fs_sb.h"
++#include "squashfs_fs_i.h"
++#include "squashfs.h"
++
++int zlib_uncompress(struct squashfs_sb_info *msblk, void **buffer,
++      struct buffer_head **bh, int b, int offset, int length, int srclength,
++      int pages)
++{
++      int zlib_err = 0, zlib_init = 0;
++      int avail, bytes, k = 0, page = 0;
++
++      mutex_lock(&msblk->read_data_mutex);
++
++      msblk->stream.avail_out = 0;
++      msblk->stream.avail_in = 0;
++
++      bytes = length;
++      do {
++              if (msblk->stream.avail_in == 0 && k < b) {
++                      avail = min(bytes, msblk->devblksize - offset);
++                      bytes -= avail;
++                      wait_on_buffer(bh[k]);
++                      if (!buffer_uptodate(bh[k]))
++                              goto release_mutex;
++
++                      if (avail == 0) {
++                              offset = 0;
++                              put_bh(bh[k++]);
++                              continue;
++                      }
++
++                      msblk->stream.next_in = bh[k]->b_data + offset;
++                      msblk->stream.avail_in = avail;
++                      offset = 0;
++              }
++
++              if (msblk->stream.avail_out == 0 && page < pages) {
++                      msblk->stream.next_out = buffer[page++];
++                      msblk->stream.avail_out = PAGE_CACHE_SIZE;
++              }
++
++              if (!zlib_init) {
++                      zlib_err = zlib_inflateInit(&msblk->stream);
++                      if (zlib_err != Z_OK) {
++                              ERROR("zlib_inflateInit returned unexpected "
++                                      "result 0x%x, srclength %d\n",
++                                      zlib_err, srclength);
++                              goto release_mutex;
++                      }
++                      zlib_init = 1;
++              }
++
++              zlib_err = zlib_inflate(&msblk->stream, Z_SYNC_FLUSH);
++
++              if (msblk->stream.avail_in == 0 && k < b)
++                      put_bh(bh[k++]);
++      } while (zlib_err == Z_OK);
++
++      if (zlib_err != Z_STREAM_END) {
++              ERROR("zlib_inflate error, data probably corrupt\n");
++              goto release_mutex;
++      }
++
++      zlib_err = zlib_inflateEnd(&msblk->stream);
++      if (zlib_err != Z_OK) {
++              ERROR("zlib_inflate error, data probably corrupt\n");
++              goto release_mutex;
++      }
++
++      mutex_unlock(&msblk->read_data_mutex);
++      return msblk->stream.total_out;
++
++release_mutex:
++      mutex_unlock(&msblk->read_data_mutex);
++
++      for (; k < b; k++)
++              put_bh(bh[k]);
++
++      return -EIO;
++}

diff --git a/target/linux/generic-2.6/patches-2.6.32/002-squashfs_factor_out_remaining_zlib.patch b/target/linux/generic-2.6/patches-2.6.32/002-squashfs_factor_out_remaining_zlib.patch
new file mode 100644 (file)
index 0000000..eacbb97
--- /dev/null
+++ b/target/linux/generic-2.6/patches-2.6.32/002-squashfs_factor_out_remaining_zlib.patch
@@ -0,0 +1,317 @@
+From 37c44e85fd49676ec15ccaeea065662c1fbcda7d Mon Sep 17 00:00:00 2001
+From: Phillip Lougher <phillip@lougher.demon.co.uk>
+Date: Wed, 23 Sep 2009 19:04:49 +0100
+Subject: [PATCH] Squashfs: Factor out remaining zlib dependencies into separate wrapper file
+
+Move zlib buffer init/destroy code into separate wrapper file.  Also
+make zlib z_stream field a void * removing the need to include zlib.h
+for most files.
+
+Signed-off-by: Phillip Lougher <phillip@lougher.demon.co.uk>
+---
+ fs/squashfs/block.c          |    1 -
+ fs/squashfs/cache.c          |    1 -
+ fs/squashfs/dir.c            |    1 -
+ fs/squashfs/export.c         |    1 -
+ fs/squashfs/file.c           |    1 -
+ fs/squashfs/fragment.c       |    1 -
+ fs/squashfs/id.c             |    1 -
+ fs/squashfs/inode.c          |    1 -
+ fs/squashfs/namei.c          |    1 -
+ fs/squashfs/squashfs.h       |    2 +
+ fs/squashfs/squashfs_fs_sb.h |    2 +-
+ fs/squashfs/super.c          |   14 +++------
+ fs/squashfs/symlink.c        |    1 -
+ fs/squashfs/zlib_wrapper.c   |   56 ++++++++++++++++++++++++++++++++---------
+ 14 files changed, 51 insertions(+), 33 deletions(-)
+
+--- a/fs/squashfs/block.c
++++ b/fs/squashfs/block.c
+@@ -31,7 +31,6 @@
+ #include <linux/slab.h>
+ #include <linux/string.h>
+ #include <linux/buffer_head.h>
+-#include <linux/zlib.h>
+ 
+ #include "squashfs_fs.h"
+ #include "squashfs_fs_sb.h"
+--- a/fs/squashfs/cache.c
++++ b/fs/squashfs/cache.c
+@@ -51,7 +51,6 @@
+ #include <linux/sched.h>
+ #include <linux/spinlock.h>
+ #include <linux/wait.h>
+-#include <linux/zlib.h>
+ #include <linux/pagemap.h>
+ 
+ #include "squashfs_fs.h"
+--- a/fs/squashfs/dir.c
++++ b/fs/squashfs/dir.c
+@@ -30,7 +30,6 @@
+ #include <linux/fs.h>
+ #include <linux/vfs.h>
+ #include <linux/slab.h>
+-#include <linux/zlib.h>
+ 
+ #include "squashfs_fs.h"
+ #include "squashfs_fs_sb.h"
+--- a/fs/squashfs/export.c
++++ b/fs/squashfs/export.c
+@@ -39,7 +39,6 @@
+ #include <linux/vfs.h>
+ #include <linux/dcache.h>
+ #include <linux/exportfs.h>
+-#include <linux/zlib.h>
+ #include <linux/slab.h>
+ 
+ #include "squashfs_fs.h"
+--- a/fs/squashfs/file.c
++++ b/fs/squashfs/file.c
+@@ -47,7 +47,6 @@
+ #include <linux/string.h>
+ #include <linux/pagemap.h>
+ #include <linux/mutex.h>
+-#include <linux/zlib.h>
+ 
+ #include "squashfs_fs.h"
+ #include "squashfs_fs_sb.h"
+--- a/fs/squashfs/fragment.c
++++ b/fs/squashfs/fragment.c
+@@ -36,7 +36,6 @@
+ #include <linux/fs.h>
+ #include <linux/vfs.h>
+ #include <linux/slab.h>
+-#include <linux/zlib.h>
+ 
+ #include "squashfs_fs.h"
+ #include "squashfs_fs_sb.h"
+--- a/fs/squashfs/id.c
++++ b/fs/squashfs/id.c
+@@ -34,7 +34,6 @@
+ #include <linux/fs.h>
+ #include <linux/vfs.h>
+ #include <linux/slab.h>
+-#include <linux/zlib.h>
+ 
+ #include "squashfs_fs.h"
+ #include "squashfs_fs_sb.h"
+--- a/fs/squashfs/inode.c
++++ b/fs/squashfs/inode.c
+@@ -40,7 +40,6 @@
+ 
+ #include <linux/fs.h>
+ #include <linux/vfs.h>
+-#include <linux/zlib.h>
+ 
+ #include "squashfs_fs.h"
+ #include "squashfs_fs_sb.h"
+--- a/fs/squashfs/namei.c
++++ b/fs/squashfs/namei.c
+@@ -57,7 +57,6 @@
+ #include <linux/slab.h>
+ #include <linux/string.h>
+ #include <linux/dcache.h>
+-#include <linux/zlib.h>
+ 
+ #include "squashfs_fs.h"
+ #include "squashfs_fs_sb.h"
+--- a/fs/squashfs/squashfs.h
++++ b/fs/squashfs/squashfs.h
+@@ -71,6 +71,8 @@ extern struct inode *squashfs_iget(struc
+ extern int squashfs_read_inode(struct inode *, long long);
+ 
+ /* zlib_wrapper.c */
++extern void *zlib_init(void);
++extern void zlib_free(void *);
+ extern int zlib_uncompress(struct squashfs_sb_info *, void **,
+                               struct buffer_head **, int, int, int, int, int);
+ 
+--- a/fs/squashfs/squashfs_fs_sb.h
++++ b/fs/squashfs/squashfs_fs_sb.h
+@@ -64,7 +64,7 @@ struct squashfs_sb_info {
+       struct mutex            read_data_mutex;
+       struct mutex            meta_index_mutex;
+       struct meta_index       *meta_index;
+-      z_stream                stream;
++      void                    *stream;
+       __le64                  *inode_lookup_table;
+       u64                     inode_table;
+       u64                     directory_table;
+--- a/fs/squashfs/super.c
++++ b/fs/squashfs/super.c
+@@ -35,7 +35,6 @@
+ #include <linux/pagemap.h>
+ #include <linux/init.h>
+ #include <linux/module.h>
+-#include <linux/zlib.h>
+ #include <linux/magic.h>
+ 
+ #include "squashfs_fs.h"
+@@ -87,12 +86,9 @@ static int squashfs_fill_super(struct su
+       }
+       msblk = sb->s_fs_info;
+ 
+-      msblk->stream.workspace = kmalloc(zlib_inflate_workspacesize(),
+-              GFP_KERNEL);
+-      if (msblk->stream.workspace == NULL) {
+-              ERROR("Failed to allocate zlib workspace\n");
++      msblk->stream = zlib_init();
++      if (msblk->stream == NULL)
+               goto failure;
+-      }
+ 
+       sblk = kzalloc(sizeof(*sblk), GFP_KERNEL);
+       if (sblk == NULL) {
+@@ -292,17 +288,17 @@ failed_mount:
+       squashfs_cache_delete(msblk->block_cache);
+       squashfs_cache_delete(msblk->fragment_cache);
+       squashfs_cache_delete(msblk->read_page);
++      zlib_free(msblk->stream);
+       kfree(msblk->inode_lookup_table);
+       kfree(msblk->fragment_index);
+       kfree(msblk->id_table);
+-      kfree(msblk->stream.workspace);
+       kfree(sb->s_fs_info);
+       sb->s_fs_info = NULL;
+       kfree(sblk);
+       return err;
+ 
+ failure:
+-      kfree(msblk->stream.workspace);
++      zlib_free(msblk->stream);
+       kfree(sb->s_fs_info);
+       sb->s_fs_info = NULL;
+       return -ENOMEM;
+@@ -346,10 +342,10 @@ static void squashfs_put_super(struct su
+               squashfs_cache_delete(sbi->block_cache);
+               squashfs_cache_delete(sbi->fragment_cache);
+               squashfs_cache_delete(sbi->read_page);
++              zlib_free(sbi->stream);
+               kfree(sbi->id_table);
+               kfree(sbi->fragment_index);
+               kfree(sbi->meta_index);
+-              kfree(sbi->stream.workspace);
+               kfree(sb->s_fs_info);
+               sb->s_fs_info = NULL;
+       }
+--- a/fs/squashfs/symlink.c
++++ b/fs/squashfs/symlink.c
+@@ -36,7 +36,6 @@
+ #include <linux/slab.h>
+ #include <linux/string.h>
+ #include <linux/pagemap.h>
+-#include <linux/zlib.h>
+ 
+ #include "squashfs_fs.h"
+ #include "squashfs_fs_sb.h"
+--- a/fs/squashfs/zlib_wrapper.c
++++ b/fs/squashfs/zlib_wrapper.c
+@@ -31,21 +31,51 @@
+ #include "squashfs_fs_i.h"
+ #include "squashfs.h"
+ 
++void *zlib_init()
++{
++      z_stream *stream = kmalloc(sizeof(z_stream), GFP_KERNEL);
++      if (stream == NULL)
++              goto failed;
++      stream->workspace = kmalloc(zlib_inflate_workspacesize(),
++              GFP_KERNEL);
++      if (stream->workspace == NULL)
++              goto failed;
++
++      return stream;
++
++failed:
++      ERROR("Failed to allocate zlib workspace\n");
++      kfree(stream);
++      return NULL;
++}
++
++
++void zlib_free(void *strm)
++{
++      z_stream *stream = strm;
++
++      if (stream)
++              kfree(stream->workspace);
++      kfree(stream);
++}
++
++
+ int zlib_uncompress(struct squashfs_sb_info *msblk, void **buffer,
+       struct buffer_head **bh, int b, int offset, int length, int srclength,
+       int pages)
+ {
+       int zlib_err = 0, zlib_init = 0;
+       int avail, bytes, k = 0, page = 0;
++      z_stream *stream = msblk->stream;
+ 
+       mutex_lock(&msblk->read_data_mutex);
+ 
+-      msblk->stream.avail_out = 0;
+-      msblk->stream.avail_in = 0;
++      stream->avail_out = 0;
++      stream->avail_in = 0;
+ 
+       bytes = length;
+       do {
+-              if (msblk->stream.avail_in == 0 && k < b) {
++              if (stream->avail_in == 0 && k < b) {
+                       avail = min(bytes, msblk->devblksize - offset);
+                       bytes -= avail;
+                       wait_on_buffer(bh[k]);
+@@ -58,18 +88,18 @@ int zlib_uncompress(struct squashfs_sb_i
+                               continue;
+                       }
+ 
+-                      msblk->stream.next_in = bh[k]->b_data + offset;
+-                      msblk->stream.avail_in = avail;
++                      stream->next_in = bh[k]->b_data + offset;
++                      stream->avail_in = avail;
+                       offset = 0;
+               }
+ 
+-              if (msblk->stream.avail_out == 0 && page < pages) {
+-                      msblk->stream.next_out = buffer[page++];
+-                      msblk->stream.avail_out = PAGE_CACHE_SIZE;
++              if (stream->avail_out == 0 && page < pages) {
++                      stream->next_out = buffer[page++];
++                      stream->avail_out = PAGE_CACHE_SIZE;
+               }
+ 
+               if (!zlib_init) {
+-                      zlib_err = zlib_inflateInit(&msblk->stream);
++                      zlib_err = zlib_inflateInit(stream);
+                       if (zlib_err != Z_OK) {
+                               ERROR("zlib_inflateInit returned unexpected "
+                                       "result 0x%x, srclength %d\n",
+@@ -79,9 +109,9 @@ int zlib_uncompress(struct squashfs_sb_i
+                       zlib_init = 1;
+               }
+ 
+-              zlib_err = zlib_inflate(&msblk->stream, Z_SYNC_FLUSH);
++              zlib_err = zlib_inflate(stream, Z_SYNC_FLUSH);
+ 
+-              if (msblk->stream.avail_in == 0 && k < b)
++              if (stream->avail_in == 0 && k < b)
+                       put_bh(bh[k++]);
+       } while (zlib_err == Z_OK);
+ 
+@@ -90,14 +120,14 @@ int zlib_uncompress(struct squashfs_sb_i
+               goto release_mutex;
+       }
+ 
+-      zlib_err = zlib_inflateEnd(&msblk->stream);
++      zlib_err = zlib_inflateEnd(stream);
+       if (zlib_err != Z_OK) {
+               ERROR("zlib_inflate error, data probably corrupt\n");
+               goto release_mutex;
+       }
+ 
+       mutex_unlock(&msblk->read_data_mutex);
+-      return msblk->stream.total_out;
++      return stream->total_out;
+ 
+ release_mutex:
+       mutex_unlock(&msblk->read_data_mutex);

diff --git a/target/linux/generic-2.6/patches-2.6.32/003-squashfs_add_decompressor_framework.patch b/target/linux/generic-2.6/patches-2.6.32/003-squashfs_add_decompressor_framework.patch
new file mode 100644 (file)
index 0000000..fdf0d40
--- /dev/null
+++ b/target/linux/generic-2.6/patches-2.6.32/003-squashfs_add_decompressor_framework.patch
@@ -0,0 +1,426 @@
+From 327fbf47a419befc6bff74f3ca42d2b6f0841903 Mon Sep 17 00:00:00 2001
+From: Phillip Lougher <phillip@lougher.demon.co.uk>
+Date: Tue, 6 Oct 2009 04:04:15 +0100
+Subject: [PATCH] Squashfs: add a decompressor framework
+
+This adds a decompressor framework which allows multiple compression
+algorithms to be cleanly supported.
+
+Also update zlib wrapper and other code to use the new framework.
+
+Signed-off-by: Phillip Lougher <phillip@lougher.demon.co.uk>
+---
+ fs/squashfs/Makefile         |    2 +-
+ fs/squashfs/block.c          |    6 ++--
+ fs/squashfs/decompressor.c   |   58 ++++++++++++++++++++++++++++++++++++++++++
+ fs/squashfs/decompressor.h   |   55 +++++++++++++++++++++++++++++++++++++++
+ fs/squashfs/squashfs.h       |   14 +++++-----
+ fs/squashfs/squashfs_fs_sb.h |   41 +++++++++++++++--------------
+ fs/squashfs/super.c          |   45 ++++++++++++++++++-------------
+ fs/squashfs/zlib_wrapper.c   |   17 ++++++++++--
+ 8 files changed, 185 insertions(+), 53 deletions(-)
+ create mode 100644 fs/squashfs/decompressor.c
+ create mode 100644 fs/squashfs/decompressor.h
+
+--- a/fs/squashfs/Makefile
++++ b/fs/squashfs/Makefile
+@@ -4,4 +4,4 @@
+ 
+ obj-$(CONFIG_SQUASHFS) += squashfs.o
+ squashfs-y += block.o cache.o dir.o export.o file.o fragment.o id.o inode.o
+-squashfs-y += namei.o super.o symlink.o zlib_wrapper.o
++squashfs-y += namei.o super.o symlink.o zlib_wrapper.o decompressor.o
+--- a/fs/squashfs/block.c
++++ b/fs/squashfs/block.c
+@@ -36,7 +36,7 @@
+ #include "squashfs_fs_sb.h"
+ #include "squashfs_fs_i.h"
+ #include "squashfs.h"
+-
++#include "decompressor.h"
+ /*
+  * Read the metadata block length, this is stored in the first two
+  * bytes of the metadata block.
+@@ -151,8 +151,8 @@ int squashfs_read_data(struct super_bloc
+       }
+ 
+       if (compressed) {
+-              length = zlib_uncompress(msblk, buffer, bh, b, offset, length,
+-                      srclength, pages);
++              length = squashfs_decompress(msblk, buffer, bh, b, offset,
++                      length, srclength, pages);
+               if (length < 0)
+                       goto read_failure;
+       } else {
+--- /dev/null
++++ b/fs/squashfs/decompressor.c
+@@ -0,0 +1,58 @@
++/*
++ * Squashfs - a compressed read only filesystem for Linux
++ *
++ * Copyright (c) 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009
++ * Phillip Lougher <phillip@lougher.demon.co.uk>
++ *
++ * 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,
++ * or (at your option) any later version.
++ *
++ * This program is distributed in the hope that 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, 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
++ *
++ * decompressor.c
++ */
++
++#include <linux/types.h>
++#include <linux/mutex.h>
++#include <linux/buffer_head.h>
++
++#include "squashfs_fs.h"
++#include "squashfs_fs_sb.h"
++#include "squashfs_fs_i.h"
++#include "decompressor.h"
++#include "squashfs.h"
++
++/*
++ * This file (and decompressor.h) implements a decompressor framework for
++ * Squashfs, allowing multiple decompressors to be easily supported
++ */
++
++static const struct squashfs_decompressor squashfs_unknown_comp_ops = {
++      NULL, NULL, NULL, 0, "unknown", 0
++};
++
++static const struct squashfs_decompressor *decompressor[] = {
++      &squashfs_zlib_comp_ops,
++      &squashfs_unknown_comp_ops
++};
++
++
++const struct squashfs_decompressor *squashfs_lookup_decompressor(int id)
++{
++      int i;
++
++      for (i = 0; decompressor[i]->id; i++)
++              if (id == decompressor[i]->id)
++                      break;
++
++      return decompressor[i];
++}
+--- /dev/null
++++ b/fs/squashfs/decompressor.h
+@@ -0,0 +1,55 @@
++#ifndef DECOMPRESSOR_H
++#define DECOMPRESSOR_H
++/*
++ * Squashfs - a compressed read only filesystem for Linux
++ *
++ * Copyright (c) 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009
++ * Phillip Lougher <phillip@lougher.demon.co.uk>
++ *
++ * 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,
++ * or (at your option) any later version.
++ *
++ * This program is distributed in the hope that 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, 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
++ *
++ * decompressor.h
++ */
++
++struct squashfs_decompressor {
++      void    *(*init)(void);
++      void    (*free)(void *);
++      int     (*decompress)(struct squashfs_sb_info *, void **,
++              struct buffer_head **, int, int, int, int, int);
++      int     id;
++      char    *name;
++      int     supported;
++};
++
++static inline void *squashfs_decompressor_init(struct squashfs_sb_info *msblk)
++{
++      return msblk->decompressor->init();
++}
++
++static inline void squashfs_decompressor_free(struct squashfs_sb_info *msblk,
++      void *s)
++{
++      if (msblk->decompressor)
++              msblk->decompressor->free(s);
++}
++
++static inline int squashfs_decompress(struct squashfs_sb_info *msblk,
++      void **buffer, struct buffer_head **bh, int b, int offset, int length,
++      int srclength, int pages)
++{
++      return msblk->decompressor->decompress(msblk, buffer, bh, b, offset,
++              length, srclength, pages);
++}
++#endif
+--- a/fs/squashfs/squashfs.h
++++ b/fs/squashfs/squashfs.h
+@@ -51,6 +51,9 @@ extern struct squashfs_cache_entry *squa
+                               u64, int);
+ extern int squashfs_read_table(struct super_block *, void *, u64, int);
+ 
++/* decompressor.c */
++extern const struct squashfs_decompressor *squashfs_lookup_decompressor(int);
++
+ /* export.c */
+ extern __le64 *squashfs_read_inode_lookup_table(struct super_block *, u64,
+                               unsigned int);
+@@ -70,14 +73,8 @@ extern struct inode *squashfs_iget(struc
+                               unsigned int);
+ extern int squashfs_read_inode(struct inode *, long long);
+ 
+-/* zlib_wrapper.c */
+-extern void *zlib_init(void);
+-extern void zlib_free(void *);
+-extern int zlib_uncompress(struct squashfs_sb_info *, void **,
+-                              struct buffer_head **, int, int, int, int, int);
+-
+ /*
+- * Inodes and files operations
++ * Inodes, files and decompressor operations
+  */
+ 
+ /* dir.c */
+@@ -94,3 +91,6 @@ extern const struct inode_operations squ
+ 
+ /* symlink.c */
+ extern const struct address_space_operations squashfs_symlink_aops;
++
++/* zlib_wrapper.c */
++extern const struct squashfs_decompressor squashfs_zlib_comp_ops;
+--- a/fs/squashfs/squashfs_fs_sb.h
++++ b/fs/squashfs/squashfs_fs_sb.h
+@@ -52,25 +52,26 @@ struct squashfs_cache_entry {
+ };
+ 
+ struct squashfs_sb_info {
+-      int                     devblksize;
+-      int                     devblksize_log2;
+-      struct squashfs_cache   *block_cache;
+-      struct squashfs_cache   *fragment_cache;
+-      struct squashfs_cache   *read_page;
+-      int                     next_meta_index;
+-      __le64                  *id_table;
+-      __le64                  *fragment_index;
+-      unsigned int            *fragment_index_2;
+-      struct mutex            read_data_mutex;
+-      struct mutex            meta_index_mutex;
+-      struct meta_index       *meta_index;
+-      void                    *stream;
+-      __le64                  *inode_lookup_table;
+-      u64                     inode_table;
+-      u64                     directory_table;
+-      unsigned int            block_size;
+-      unsigned short          block_log;
+-      long long               bytes_used;
+-      unsigned int            inodes;
++      const struct squashfs_decompressor      *decompressor;
++      int                                     devblksize;
++      int                                     devblksize_log2;
++      struct squashfs_cache                   *block_cache;
++      struct squashfs_cache                   *fragment_cache;
++      struct squashfs_cache                   *read_page;
++      int                                     next_meta_index;
++      __le64                                  *id_table;
++      __le64                                  *fragment_index;
++      unsigned int                            *fragment_index_2;
++      struct mutex                            read_data_mutex;
++      struct mutex                            meta_index_mutex;
++      struct meta_index                       *meta_index;
++      void                                    *stream;
++      __le64                                  *inode_lookup_table;
++      u64                                     inode_table;
++      u64                                     directory_table;
++      unsigned int                            block_size;
++      unsigned short                          block_log;
++      long long                               bytes_used;
++      unsigned int                            inodes;
+ };
+ #endif
+--- a/fs/squashfs/super.c
++++ b/fs/squashfs/super.c
+@@ -41,27 +41,35 @@
+ #include "squashfs_fs_sb.h"
+ #include "squashfs_fs_i.h"
+ #include "squashfs.h"
++#include "decompressor.h"
+ 
+ static struct file_system_type squashfs_fs_type;
+ static const struct super_operations squashfs_super_ops;
+ 
+-static int supported_squashfs_filesystem(short major, short minor, short comp)
++static const struct squashfs_decompressor *supported_squashfs_filesystem(short
++      major, short minor, short id)
+ {
++      const struct squashfs_decompressor *decompressor;
++
+       if (major < SQUASHFS_MAJOR) {
+               ERROR("Major/Minor mismatch, older Squashfs %d.%d "
+                       "filesystems are unsupported\n", major, minor);
+-              return -EINVAL;
++              return NULL;
+       } else if (major > SQUASHFS_MAJOR || minor > SQUASHFS_MINOR) {
+               ERROR("Major/Minor mismatch, trying to mount newer "
+                       "%d.%d filesystem\n", major, minor);
+               ERROR("Please update your kernel\n");
+-              return -EINVAL;
++              return NULL;
+       }
+ 
+-      if (comp != ZLIB_COMPRESSION)
+-              return -EINVAL;
++      decompressor = squashfs_lookup_decompressor(id);
++      if (!decompressor->supported) {
++              ERROR("Filesystem uses \"%s\" compression. This is not "
++                      "supported\n", decompressor->name);
++              return NULL;
++      }
+ 
+-      return 0;
++      return decompressor;
+ }
+ 
+ 
+@@ -86,10 +94,6 @@ static int squashfs_fill_super(struct su
+       }
+       msblk = sb->s_fs_info;
+ 
+-      msblk->stream = zlib_init();
+-      if (msblk->stream == NULL)
+-              goto failure;
+-
+       sblk = kzalloc(sizeof(*sblk), GFP_KERNEL);
+       if (sblk == NULL) {
+               ERROR("Failed to allocate squashfs_super_block\n");
+@@ -116,25 +120,25 @@ static int squashfs_fill_super(struct su
+               goto failed_mount;
+       }
+ 
++      err = -EINVAL;
++
+       /* Check it is a SQUASHFS superblock */
+       sb->s_magic = le32_to_cpu(sblk->s_magic);
+       if (sb->s_magic != SQUASHFS_MAGIC) {
+               if (!silent)
+                       ERROR("Can't find a SQUASHFS superblock on %s\n",
+                                               bdevname(sb->s_bdev, b));
+-              err = -EINVAL;
+               goto failed_mount;
+       }
+ 
+-      /* Check the MAJOR & MINOR versions and compression type */
+-      err = supported_squashfs_filesystem(le16_to_cpu(sblk->s_major),
++      /* Check the MAJOR & MINOR versions and lookup compression type */
++      msblk->decompressor = supported_squashfs_filesystem(
++                      le16_to_cpu(sblk->s_major),
+                       le16_to_cpu(sblk->s_minor),
+                       le16_to_cpu(sblk->compression));
+-      if (err < 0)
++      if (msblk->decompressor == NULL)
+               goto failed_mount;
+ 
+-      err = -EINVAL;
+-
+       /*
+        * Check if there's xattrs in the filesystem.  These are not
+        * supported in this version, so warn that they will be ignored.
+@@ -201,6 +205,10 @@ static int squashfs_fill_super(struct su
+ 
+       err = -ENOMEM;
+ 
++      msblk->stream = squashfs_decompressor_init(msblk);
++      if (msblk->stream == NULL)
++              goto failed_mount;
++
+       msblk->block_cache = squashfs_cache_init("metadata",
+                       SQUASHFS_CACHED_BLKS, SQUASHFS_METADATA_SIZE);
+       if (msblk->block_cache == NULL)
+@@ -288,7 +296,7 @@ failed_mount:
+       squashfs_cache_delete(msblk->block_cache);
+       squashfs_cache_delete(msblk->fragment_cache);
+       squashfs_cache_delete(msblk->read_page);
+-      zlib_free(msblk->stream);
++      squashfs_decompressor_free(msblk, msblk->stream);
+       kfree(msblk->inode_lookup_table);
+       kfree(msblk->fragment_index);
+       kfree(msblk->id_table);
+@@ -298,7 +306,6 @@ failed_mount:
+       return err;
+ 
+ failure:
+-      zlib_free(msblk->stream);
+       kfree(sb->s_fs_info);
+       sb->s_fs_info = NULL;
+       return -ENOMEM;
+@@ -342,7 +349,7 @@ static void squashfs_put_super(struct su
+               squashfs_cache_delete(sbi->block_cache);
+               squashfs_cache_delete(sbi->fragment_cache);
+               squashfs_cache_delete(sbi->read_page);
+-              zlib_free(sbi->stream);
++              squashfs_decompressor_free(sbi, sbi->stream);
+               kfree(sbi->id_table);
+               kfree(sbi->fragment_index);
+               kfree(sbi->meta_index);
+--- a/fs/squashfs/zlib_wrapper.c
++++ b/fs/squashfs/zlib_wrapper.c
+@@ -30,8 +30,9 @@
+ #include "squashfs_fs_sb.h"
+ #include "squashfs_fs_i.h"
+ #include "squashfs.h"
++#include "decompressor.h"
+ 
+-void *zlib_init()
++static void *zlib_init(void)
+ {
+       z_stream *stream = kmalloc(sizeof(z_stream), GFP_KERNEL);
+       if (stream == NULL)
+@@ -50,7 +51,7 @@ failed:
+ }
+ 
+ 
+-void zlib_free(void *strm)
++static void zlib_free(void *strm)
+ {
+       z_stream *stream = strm;
+ 
+@@ -60,7 +61,7 @@ void zlib_free(void *strm)
+ }
+ 
+ 
+-int zlib_uncompress(struct squashfs_sb_info *msblk, void **buffer,
++static int zlib_uncompress(struct squashfs_sb_info *msblk, void **buffer,
+       struct buffer_head **bh, int b, int offset, int length, int srclength,
+       int pages)
+ {
+@@ -137,3 +138,13 @@ release_mutex:
+ 
+       return -EIO;
+ }
++
++const struct squashfs_decompressor squashfs_zlib_comp_ops = {
++      .init = zlib_init,
++      .free = zlib_free,
++      .decompress = zlib_uncompress,
++      .id = ZLIB_COMPRESSION,
++      .name = "zlib",
++      .supported = 1
++};
++

diff --git a/target/linux/generic-2.6/patches-2.6.32/004-squashfs_add_decompressor_lzma_lzo.patch b/target/linux/generic-2.6/patches-2.6.32/004-squashfs_add_decompressor_lzma_lzo.patch
new file mode 100644 (file)
index 0000000..a378c00
--- /dev/null
+++ b/target/linux/generic-2.6/patches-2.6.32/004-squashfs_add_decompressor_lzma_lzo.patch
@@ -0,0 +1,54 @@
+From 1885ca0a1973944684f252094a703b7c80dfc974 Mon Sep 17 00:00:00 2001
+From: Phillip Lougher <phillip@lougher.demon.co.uk>
+Date: Wed, 14 Oct 2009 03:58:11 +0100
+Subject: [PATCH] Squashfs: add decompressor entries for lzma and lzo
+
+Add knowledge of lzma/lzo compression formats to the decompressor
+framework.  For now these are added as unsupported.  Without
+these entries lzma/lzo compressed filesystems will be flagged as
+having unknown compression which is undesirable.
+
+Signed-off-by: Phillip Lougher <phillip@lougher.demon.co.uk>
+---
+ fs/squashfs/decompressor.c |   10 ++++++++++
+ fs/squashfs/squashfs_fs.h  |    4 +++-
+ 2 files changed, 13 insertions(+), 1 deletions(-)
+
+--- a/fs/squashfs/decompressor.c
++++ b/fs/squashfs/decompressor.c
+@@ -36,12 +36,22 @@
+  * Squashfs, allowing multiple decompressors to be easily supported
+  */
+ 
++static const struct squashfs_decompressor squashfs_lzma_unsupported_comp_ops = {
++      NULL, NULL, NULL, LZMA_COMPRESSION, "lzma", 0
++};
++
++static const struct squashfs_decompressor squashfs_lzo_unsupported_comp_ops = {
++      NULL, NULL, NULL, LZO_COMPRESSION, "lzo", 0
++};
++
+ static const struct squashfs_decompressor squashfs_unknown_comp_ops = {
+       NULL, NULL, NULL, 0, "unknown", 0
+ };
+ 
+ static const struct squashfs_decompressor *decompressor[] = {
+       &squashfs_zlib_comp_ops,
++      &squashfs_lzma_unsupported_comp_ops,
++      &squashfs_lzo_unsupported_comp_ops,
+       &squashfs_unknown_comp_ops
+ };
+ 
+--- a/fs/squashfs/squashfs_fs.h
++++ b/fs/squashfs/squashfs_fs.h
+@@ -211,7 +211,9 @@ struct meta_index {
+ /*
+  * definitions for structures on disk
+  */
+-#define ZLIB_COMPRESSION       1
++#define ZLIB_COMPRESSION      1
++#define LZMA_COMPRESSION      2
++#define LZO_COMPRESSION               3
+ 
+ struct squashfs_super_block {
+       __le32                  s_magic;

diff --git a/target/linux/generic-2.6/patches-2.6.32/005-squashfs_extra_parameter.patch b/target/linux/generic-2.6/patches-2.6.32/005-squashfs_extra_parameter.patch
new file mode 100644 (file)
index 0000000..0991681
--- /dev/null
+++ b/target/linux/generic-2.6/patches-2.6.32/005-squashfs_extra_parameter.patch
@@ -0,0 +1,42 @@
+From 5f393ede3ddb5dd4cc2a9f243182fac45f1ce10b Mon Sep 17 00:00:00 2001
+From: Phillip Lougher <phillip@lougher.demon.co.uk>
+Date: Wed, 14 Oct 2009 04:07:54 +0100
+Subject: [PATCH] Squashfs: add an extra parameter to the decompressor init function
+
+Signed-off-by: Phillip Lougher <phillip@lougher.demon.co.uk>
+---
+ fs/squashfs/decompressor.h |    4 ++--
+ fs/squashfs/zlib_wrapper.c |    2 +-
+ 2 files changed, 3 insertions(+), 3 deletions(-)
+
+--- a/fs/squashfs/decompressor.h
++++ b/fs/squashfs/decompressor.h
+@@ -24,7 +24,7 @@
+  */
+ 
+ struct squashfs_decompressor {
+-      void    *(*init)(void);
++      void    *(*init)(struct squashfs_sb_info *);
+       void    (*free)(void *);
+       int     (*decompress)(struct squashfs_sb_info *, void **,
+               struct buffer_head **, int, int, int, int, int);
+@@ -35,7 +35,7 @@ struct squashfs_decompressor {
+ 
+ static inline void *squashfs_decompressor_init(struct squashfs_sb_info *msblk)
+ {
+-      return msblk->decompressor->init();
++      return msblk->decompressor->init(msblk);
+ }
+ 
+ static inline void squashfs_decompressor_free(struct squashfs_sb_info *msblk,
+--- a/fs/squashfs/zlib_wrapper.c
++++ b/fs/squashfs/zlib_wrapper.c
+@@ -32,7 +32,7 @@
+ #include "squashfs.h"
+ #include "decompressor.h"
+ 
+-static void *zlib_init(void)
++static void *zlib_init(struct squashfs_sb_info *dummy)
+ {
+       z_stream *stream = kmalloc(sizeof(z_stream), GFP_KERNEL);
+       if (stream == NULL)

diff --git a/target/linux/generic-2.6/patches-2.6.32/006-squashfs_add_lzma.patch b/target/linux/generic-2.6/patches-2.6.32/006-squashfs_add_lzma.patch
new file mode 100644 (file)
index 0000000..9fd5797
--- /dev/null
+++ b/target/linux/generic-2.6/patches-2.6.32/006-squashfs_add_lzma.patch
@@ -0,0 +1,216 @@
+From f49e1efdd179d54e814ff2a8e8f469496583062c Mon Sep 17 00:00:00 2001
+From: Phillip Lougher <phillip@lougher.demon.co.uk>
+Date: Tue, 20 Oct 2009 10:54:36 +0100
+Subject: [PATCH] Squashfs: add LZMA compression
+
+Add support for LZMA compressed filesystems.  This is an initial
+implementation.
+
+Signed-off-by: Phillip Lougher <phillip@lougher.demon.co.uk>
+---
+ fs/squashfs/Kconfig        |    5 ++
+ fs/squashfs/Makefile       |    1 +
+ fs/squashfs/decompressor.c |    4 +
+ fs/squashfs/lzma_wrapper.c |  151 ++++++++++++++++++++++++++++++++++++++++++++
+ fs/squashfs/squashfs.h     |    3 +
+ 5 files changed, 164 insertions(+), 0 deletions(-)
+ create mode 100644 fs/squashfs/lzma_wrapper.c
+
+--- a/fs/squashfs/Kconfig
++++ b/fs/squashfs/Kconfig
+@@ -26,6 +26,11 @@ config SQUASHFS
+ 
+         If unsure, say N.
+ 
++config SQUASHFS_LZMA
++      bool "Include support for LZMA compressed file systems"
++      depends on SQUASHFS
++      select DECOMPRESS_LZMA
++
+ config SQUASHFS_EMBEDDED
+ 
+       bool "Additional option for memory-constrained systems" 
+--- a/fs/squashfs/Makefile
++++ b/fs/squashfs/Makefile
+@@ -5,3 +5,4 @@
+ obj-$(CONFIG_SQUASHFS) += squashfs.o
+ squashfs-y += block.o cache.o dir.o export.o file.o fragment.o id.o inode.o
+ squashfs-y += namei.o super.o symlink.o zlib_wrapper.o decompressor.o
++squashfs-$(CONFIG_SQUASHFS_LZMA) += lzma_wrapper.o
+--- a/fs/squashfs/decompressor.c
++++ b/fs/squashfs/decompressor.c
+@@ -50,7 +50,11 @@ static const struct squashfs_decompresso
+ 
+ static const struct squashfs_decompressor *decompressor[] = {
+       &squashfs_zlib_comp_ops,
++#ifdef CONFIG_SQUASHFS_LZMA
++      &squashfs_lzma_comp_ops,
++#else
+       &squashfs_lzma_unsupported_comp_ops,
++#endif
+       &squashfs_lzo_unsupported_comp_ops,
+       &squashfs_unknown_comp_ops
+ };
+--- /dev/null
++++ b/fs/squashfs/lzma_wrapper.c
+@@ -0,0 +1,151 @@
++/*
++ * Squashfs - a compressed read only filesystem for Linux
++ *
++ * Copyright (c) 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009
++ * Phillip Lougher <phillip@lougher.demon.co.uk>
++ *
++ * 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,
++ * or (at your option) any later version.
++ *
++ * This program is distributed in the hope that 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, 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
++ *
++ * lzma_wrapper.c
++ */
++
++#include <asm/unaligned.h>
++#include <linux/buffer_head.h>
++#include <linux/mutex.h>
++#include <linux/vmalloc.h>
++#include <linux/decompress/unlzma.h>
++
++#include "squashfs_fs.h"
++#include "squashfs_fs_sb.h"
++#include "squashfs_fs_i.h"
++#include "squashfs.h"
++#include "decompressor.h"
++
++struct squashfs_lzma {
++      void    *input;
++      void    *output;
++};
++
++/* decompress_unlzma.c is currently non re-entrant... */
++DEFINE_MUTEX(lzma_mutex);
++
++/* decompress_unlzma.c doesn't provide any context in its callbacks... */
++static int lzma_error;
++
++static void error(char *m)
++{
++      ERROR("unlzma error: %s\n", m);
++      lzma_error = 1;
++}
++
++      
++static void *lzma_init(struct squashfs_sb_info *msblk)
++{
++      struct squashfs_lzma *stream = kzalloc(sizeof(*stream), GFP_KERNEL);
++      if (stream == NULL)
++              goto failed;
++      stream->input = vmalloc(msblk->block_size);
++      if (stream->input == NULL)
++              goto failed;
++      stream->output = vmalloc(msblk->block_size);
++      if (stream->output == NULL)
++              goto failed2;
++
++      return stream;
++
++failed2:
++      vfree(stream->input);
++failed:
++      ERROR("failed to allocate lzma workspace\n");
++      kfree(stream);
++      return NULL;
++}
++
++
++static void lzma_free(void *strm)
++{
++      struct squashfs_lzma *stream = strm;
++
++      if (stream) {
++              vfree(stream->input);
++              vfree(stream->output);
++      }
++      kfree(stream);
++}
++
++
++static int lzma_uncompress(struct squashfs_sb_info *msblk, void **buffer,
++      struct buffer_head **bh, int b, int offset, int length, int srclength,
++      int pages)
++{
++      struct squashfs_lzma *stream = msblk->stream;
++      void *buff = stream->input;
++      int avail, i, bytes = length, res;
++
++      mutex_lock(&lzma_mutex);
++
++      for (i = 0; i < b; i++) {
++              wait_on_buffer(bh[i]);
++              if (!buffer_uptodate(bh[i]))
++                      goto block_release;
++
++              avail = min(bytes, msblk->devblksize - offset);
++              memcpy(buff, bh[i]->b_data + offset, avail);
++              buff += avail;
++              bytes -= avail;
++              offset = 0;
++              put_bh(bh[i]);
++      }
++
++      lzma_error = 0;
++      res = unlzma(stream->input, length, NULL, NULL, stream->output, NULL,
++                                                      error);
++      if (res || lzma_error)
++              goto failed;
++
++      /* uncompressed size is stored in the LZMA header (5 byte offset) */
++      res = bytes = get_unaligned_le32(stream->input + 5);
++      for (i = 0, buff = stream->output; bytes && i < pages; i++) {
++              avail = min_t(int, bytes, PAGE_CACHE_SIZE);
++              memcpy(buffer[i], buff, avail);
++              buff += avail;
++              bytes -= avail;
++      }
++      if (bytes)
++              goto failed;
++
++      mutex_unlock(&lzma_mutex);
++      return res;
++
++block_release:
++      for (; i < b; i++)
++              put_bh(bh[i]);
++
++failed:
++      mutex_unlock(&lzma_mutex);
++
++      ERROR("lzma decompression failed, data probably corrupt\n");
++      return -EIO;
++}
++
++const struct squashfs_decompressor squashfs_lzma_comp_ops = {
++      .init = lzma_init,
++      .free = lzma_free,
++      .decompress = lzma_uncompress,
++      .id = LZMA_COMPRESSION,
++      .name = "lzma",
++      .supported = 1
++};
++
+--- a/fs/squashfs/squashfs.h
++++ b/fs/squashfs/squashfs.h
+@@ -94,3 +94,6 @@ extern const struct address_space_operat
+ 
+ /* zlib_wrapper.c */
+ extern const struct squashfs_decompressor squashfs_zlib_comp_ops;
++
++/* lzma wrapper.c */
++extern const struct squashfs_decompressor squashfs_lzma_comp_ops;

diff --git a/target/linux/generic-2.6/patches-2.6.32/007-squashfs_make_lzma_available.patch b/target/linux/generic-2.6/patches-2.6.32/007-squashfs_make_lzma_available.patch
new file mode 100644 (file)
index 0000000..ca43a98
--- /dev/null
+++ b/target/linux/generic-2.6/patches-2.6.32/007-squashfs_make_lzma_available.patch
@@ -0,0 +1,165 @@
+From fdf23ed283bc6ef5c25076ce2065f892120ff556 Mon Sep 17 00:00:00 2001
+From: Phillip Lougher <phillip@lougher.demon.co.uk>
+Date: Thu, 22 Oct 2009 04:57:38 +0100
+Subject: [PATCH] Squashfs: Make unlzma available to non initramfs/initrd code
+
+Add a config option DECOMPRESS_LZMA_NEEDED which allows subsystems to
+specify they need the unlzma code.  Normally decompress_unlzma.c is
+compiled with __init and unlzma is not exported to modules.
+
+Signed-off-by: Phillip Lougher <phillip@lougher.demon.co.uk>
+---
+ fs/squashfs/Kconfig                   |    1 +
+ include/linux/decompress/bunzip2_mm.h |   12 ++++++++++++
+ include/linux/decompress/inflate_mm.h |   12 ++++++++++++
+ include/linux/decompress/mm.h         |    3 ---
+ include/linux/decompress/unlzma_mm.h  |   20 ++++++++++++++++++++
+ lib/Kconfig                           |    3 +++
+ lib/decompress_bunzip2.c              |    1 +
+ lib/decompress_inflate.c              |    1 +
+ lib/decompress_unlzma.c               |    5 ++++-
+ 9 files changed, 54 insertions(+), 4 deletions(-)
+ create mode 100644 include/linux/decompress/bunzip2_mm.h
+ create mode 100644 include/linux/decompress/inflate_mm.h
+ create mode 100644 include/linux/decompress/unlzma_mm.h
+
+--- a/fs/squashfs/Kconfig
++++ b/fs/squashfs/Kconfig
+@@ -30,6 +30,7 @@ config SQUASHFS_LZMA
+       bool "Include support for LZMA compressed file systems"
+       depends on SQUASHFS
+       select DECOMPRESS_LZMA
++      select DECOMPRESS_LZMA_NEEDED
+ 
+ config SQUASHFS_EMBEDDED
+ 
+--- /dev/null
++++ b/include/linux/decompress/bunzip2_mm.h
+@@ -0,0 +1,12 @@
++#ifndef BUNZIP2_MM_H
++#define BUNZIP2_MM_H
++
++#ifdef STATIC
++/* Code active when included from pre-boot environment: */
++#define INIT
++#else
++/* Compile for initramfs/initrd code only */
++#define INIT __init
++#endif
++
++#endif
+--- /dev/null
++++ b/include/linux/decompress/inflate_mm.h
+@@ -0,0 +1,12 @@
++#ifndef INFLATE_MM_H
++#define INFLATE_MM_H
++
++#ifdef STATIC
++/* Code active when included from pre-boot environment: */
++#define INIT
++#else
++/* Compile for initramfs/initrd code only */
++#define INIT __init
++#endif
++
++#endif
+--- a/include/linux/decompress/mm.h
++++ b/include/linux/decompress/mm.h
+@@ -53,8 +53,6 @@ static void free(void *where)
+ 
+ #define set_error_fn(x)
+ 
+-#define INIT
+-
+ #else /* STATIC */
+ 
+ /* Code active when compiled standalone for use when loading ramdisk: */
+@@ -77,7 +75,6 @@ static void free(void *where)
+ static void(*error)(char *m);
+ #define set_error_fn(x) error = x;
+ 
+-#define INIT __init
+ #define STATIC
+ 
+ #include <linux/init.h>
+--- /dev/null
++++ b/include/linux/decompress/unlzma_mm.h
+@@ -0,0 +1,20 @@
++#ifndef UNLZMA_MM_H
++#define UNLZMA_MM_H
++
++#ifdef STATIC
++
++/* Code active when included from pre-boot environment: */
++#define INIT
++
++#elif defined(CONFIG_DECOMPRESS_LZMA_NEEDED)
++
++/* Make it available to non initramfs/initrd code */
++#define INIT
++#include <linux/module.h>
++#else
++
++/* Compile for initramfs/initrd code only */
++#define INIT __init
++#endif
++
++#endif
+--- a/lib/Kconfig
++++ b/lib/Kconfig
+@@ -117,6 +117,9 @@ config DECOMPRESS_BZIP2
+ config DECOMPRESS_LZMA
+       tristate
+ 
++config DECOMPRESS_LZMA_NEEDED
++       boolean
++
+ #
+ # Generic allocator support is selected if needed
+ #
+--- a/lib/decompress_bunzip2.c
++++ b/lib/decompress_bunzip2.c
+@@ -52,6 +52,7 @@
+ #include <linux/slab.h>
+ #endif /* STATIC */
+ 
++#include <linux/decompress/bunzip2_mm.h>
+ #include <linux/decompress/mm.h>
+ 
+ #ifndef INT_MAX
+--- a/lib/decompress_inflate.c
++++ b/lib/decompress_inflate.c
+@@ -23,6 +23,7 @@
+ 
+ #endif /* STATIC */
+ 
++#include <linux/decompress/inflate_mm.h>
+ #include <linux/decompress/mm.h>
+ 
+ #define GZIP_IOBUF_SIZE (16*1024)
+--- a/lib/decompress_unlzma.c
++++ b/lib/decompress_unlzma.c
+@@ -36,6 +36,7 @@
+ #include <linux/slab.h>
+ #endif /* STATIC */
+ 
++#include <linux/decompress/unlzma_mm.h>
+ #include <linux/decompress/mm.h>
+ 
+ #define       MIN(a, b) (((a) < (b)) ? (a) : (b))
+@@ -531,7 +532,7 @@ static inline void INIT process_bit1(str
+ 
+ 
+ 
+-STATIC inline int INIT unlzma(unsigned char *buf, int in_len,
++STATIC int INIT unlzma(unsigned char *buf, int in_len,
+                             int(*fill)(void*, unsigned int),
+                             int(*flush)(void*, unsigned int),
+                             unsigned char *output,
+@@ -664,4 +665,6 @@ STATIC int INIT decompress(unsigned char
+ {
+       return unlzma(buf, in_len - 4, fill, flush, output, posp, error_fn);
+ }
++#elif defined(CONFIG_DECOMPRESS_LZMA_NEEDED)
++EXPORT_SYMBOL(unlzma);
+ #endif

diff --git a/target/linux/generic-2.6/patches-2.6.32/011-mips_boot.patch b/target/linux/generic-2.6/patches-2.6.32/011-mips_boot.patch
new file mode 100644 (file)
index 0000000..c2a043a
--- /dev/null
+++ b/target/linux/generic-2.6/patches-2.6.32/011-mips_boot.patch
@@ -0,0 +1,11 @@
+--- a/arch/mips/kernel/head.S
++++ b/arch/mips/kernel/head.S
+@@ -121,6 +121,8 @@
+ #endif
+       .endm
+ 
++      j kernel_entry
++      nop
+ #ifndef CONFIG_NO_EXCEPT_FILL
+       /*
+        * Reserved space for exception handlers.

diff --git a/target/linux/generic-2.6/patches-2.6.32/012-extra_optimization.patch b/target/linux/generic-2.6/patches-2.6.32/012-extra_optimization.patch
new file mode 100644 (file)
index 0000000..77eb103
--- /dev/null
+++ b/target/linux/generic-2.6/patches-2.6.32/012-extra_optimization.patch
@@ -0,0 +1,21 @@
+--- a/Makefile
++++ b/Makefile
+@@ -523,7 +523,7 @@ all: vmlinux
+ ifdef CONFIG_CC_OPTIMIZE_FOR_SIZE
+ KBUILD_CFLAGS += -Os
+ else
+-KBUILD_CFLAGS += -O2
++KBUILD_CFLAGS += -O2 -fno-reorder-blocks -fno-tree-ch
+ endif
+ 
+ include $(srctree)/arch/$(SRCARCH)/Makefile
+@@ -561,6 +561,9 @@ 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-2.6/patches-2.6.32/013-gcc4_inline_fix.patch b/target/linux/generic-2.6/patches-2.6.32/013-gcc4_inline_fix.patch
new file mode 100644 (file)
index 0000000..9997ff2
--- /dev/null
+++ b/target/linux/generic-2.6/patches-2.6.32/013-gcc4_inline_fix.patch
@@ -0,0 +1,11 @@
+--- a/arch/mips/include/asm/system.h
++++ b/arch/mips/include/asm/system.h
+@@ -197,7 +197,7 @@ extern __u64 __xchg_u64_unsupported_on_3
+    if something tries to do an invalid xchg().  */
+ extern void __xchg_called_with_bad_pointer(void);
+ 
+-static inline unsigned long __xchg(unsigned long x, volatile void * ptr, int size)
++static __always_inline unsigned long __xchg(unsigned long x, volatile void * ptr, int size)
+ {
+       switch (size) {
+       case 4:

diff --git a/target/linux/generic-2.6/patches-2.6.32/014-samsung_flash b/target/linux/generic-2.6/patches-2.6.32/014-samsung_flash
new file mode 100644 (file)
index 0000000..1faeb41
--- /dev/null
+++ b/target/linux/generic-2.6/patches-2.6.32/014-samsung_flash
@@ -0,0 +1,36 @@
+--- a/drivers/mtd/chips/cfi_cmdset_0002.c
++++ b/drivers/mtd/chips/cfi_cmdset_0002.c
+@@ -51,6 +51,7 @@
+ #define SST49LF040B           0x0050
+ #define SST49LF008A           0x005a
+ #define AT49BV6416            0x00d6
++#define MANUFACTURER_SAMSUNG  0x00ec
+ 
+ static int cfi_amdstd_read (struct mtd_info *, loff_t, size_t, size_t *, u_char *);
+ static int cfi_amdstd_write_words(struct mtd_info *, loff_t, size_t, size_t *, const u_char *);
+@@ -375,12 +376,19 @@ struct mtd_info *cfi_cmdset_0002(struct 
+ 
+               if (extp->MajorVersion != '1' ||
+                   (extp->MinorVersion < '0' || extp->MinorVersion > '4')) {
+-                      printk(KERN_ERR "  Unknown Amd/Fujitsu Extended Query "
+-                             "version %c.%c.\n",  extp->MajorVersion,
+-                             extp->MinorVersion);
+-                      kfree(extp);
+-                      kfree(mtd);
+-                      return NULL;
++                      if (cfi->mfr == MANUFACTURER_SAMSUNG &&
++                          (extp->MajorVersion == '3' && extp->MinorVersion == '3')) {
++                          printk(KERN_NOTICE "  Newer Samsung flash detected, "
++                                 "should be compatibile with Amd/Fujitsu.\n");
++                      }
++                      else {
++                          printk(KERN_ERR "  Unknown Amd/Fujitsu Extended Query "
++                                 "version %c.%c.\n",  extp->MajorVersion,
++                                 extp->MinorVersion);
++                          kfree(extp);
++                          kfree(mtd);
++                          return NULL;
++                      }
+               }
+ 
+               /* Install our own private info structure */

diff --git a/target/linux/generic-2.6/patches-2.6.32/020-mips_multi_machine_support.patch b/target/linux/generic-2.6/patches-2.6.32/020-mips_multi_machine_support.patch
new file mode 100644 (file)
index 0000000..1b29290
--- /dev/null
+++ b/target/linux/generic-2.6/patches-2.6.32/020-mips_multi_machine_support.patch
@@ -0,0 +1,168 @@
+--- /dev/null
++++ b/include/asm-mips/mips_machine.h
+@@ -0,0 +1,46 @@
++/*
++ *  Copyright (C) 2008-2009 Gabor Juhos <juhosg@openwrt.org>
++ *
++ *  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 __ASM_MIPS_MACHINE_H
++#define __ASM_MIPS_MACHINE_H
++
++#include <linux/init.h>
++#include <linux/list.h>
++
++struct mips_machine {
++      unsigned long           mach_type;
++      void                    (*mach_setup)(void);
++      char                    *mach_name;
++      struct list_head        list;
++};
++
++void mips_machine_register(struct mips_machine *) __init;
++void mips_machine_setup(unsigned long machtype) __init;
++
++extern char *mips_machine_name;
++
++#define MIPS_MACHINE(_type, _name, _setup)                    \
++static char machine_name_##_type[] __initdata = _name;                \
++static struct mips_machine machine_##_type __initdata =               \
++{                                                             \
++      .mach_type      = _type,                                \
++      .mach_name      = machine_name_##_type,                 \
++      .mach_setup     = _setup,                               \
++};                                                            \
++                                                              \
++static int __init register_machine_##_type(void)              \
++{                                                             \
++      mips_machine_register(&machine_##_type);                \
++      return 0;                                               \
++}                                                             \
++                                                              \
++pure_initcall(register_machine_##_type)
++
++#endif /* __ASM_MIPS_MACHINE_H */
++
+--- /dev/null
++++ b/arch/mips/kernel/mips_machine.c
+@@ -0,0 +1,70 @@
++/*
++ *  Copyright (C) 2008-2009 Gabor Juhos <juhosg@openwrt.org>
++ *
++ *  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 <linux/mm.h>
++
++#include <asm/mips_machine.h>
++#include <asm/bootinfo.h>
++
++static struct list_head mips_machines __initdata =
++              LIST_HEAD_INIT(mips_machines);
++
++char *mips_machine_name = "Unknown";
++
++static struct mips_machine * __init mips_machine_find(unsigned long machtype)
++{
++      struct list_head *this;
++
++      list_for_each(this, &mips_machines) {
++              struct mips_machine *mach;
++
++              mach = list_entry(this, struct mips_machine, list);
++              if (mach->mach_type == machtype)
++                      return mach;
++      }
++
++      return NULL;
++}
++
++void __init mips_machine_register(struct mips_machine *mach)
++{
++      list_add_tail(&mach->list, &mips_machines);
++}
++
++void __init mips_machine_setup(unsigned long machtype)
++{
++      struct mips_machine *mach;
++
++      mach = mips_machine_find(machtype);
++      if (!mach) {
++              printk(KERN_ALERT "MIPS: no machine registered for "
++                      "machtype %lu\n", machtype);
++              return;
++      }
++
++      if (mach->mach_name) {
++              char *name;
++              unsigned int len;
++
++              len = strlen(mach->mach_name);
++              name = kmalloc(len + 1, GFP_KERNEL);
++              if (name) {
++                      strncpy(name, mach->mach_name,len);
++                      name[len] = '\0';
++                      mips_machine_name = name;
++              } else {
++                      printk(KERN_WARNING "MIPS: no memory for machine_name\n");
++              }
++      }
++
++      printk(KERN_INFO "MIPS: machine is %s\n", mips_machine_name);
++
++      if (mach->mach_setup)
++              mach->mach_setup();
++}
++
+--- a/arch/mips/kernel/Makefile
++++ b/arch/mips/kernel/Makefile
+@@ -87,6 +87,7 @@ obj-$(CONFIG_GPIO_TXX9)              += gpio_txx9.o
+ 
+ obj-$(CONFIG_KEXEC)           += machine_kexec.o relocate_kernel.o
+ obj-$(CONFIG_EARLY_PRINTK)    += early_printk.o
++obj-$(CONFIG_MIPS_MACHINE)    += mips_machine.o
+ 
+ CFLAGS_cpu-bugs64.o   = $(shell if $(CC) $(KBUILD_CFLAGS) -Wa,-mdaddi -c -o /dev/null -xc /dev/null >/dev/null 2>&1; then echo "-DHAVE_AS_SET_DADDI"; fi)
+ 
+--- a/arch/mips/Kconfig
++++ b/arch/mips/Kconfig
+@@ -839,6 +839,9 @@ config MIPS_DISABLE_OBSOLETE_IDE
+ config SYNC_R4K
+       bool
+ 
++config MIPS_MACHINE
++      def_bool n
++
+ config NO_IOPORT
+       def_bool n
+ 
+--- a/arch/mips/kernel/proc.c
++++ b/arch/mips/kernel/proc.c
+@@ -12,6 +12,7 @@
+ #include <asm/cpu-features.h>
+ #include <asm/mipsregs.h>
+ #include <asm/processor.h>
++#include <asm/mips_machine.h>
+ 
+ unsigned int vced_count, vcei_count;
+ 
+@@ -31,8 +32,12 @@ static int show_cpuinfo(struct seq_file 
+       /*
+        * For the first processor also print the system type
+        */
+-      if (n == 0)
++      if (n == 0) {
+               seq_printf(m, "system type\t\t: %s\n", get_system_type());
++#ifdef CONFIG_MIPS_MACHINE
++              seq_printf(m, "machine\t\t\t: %s\n", mips_machine_name);
++#endif
++      }
+ 
+       seq_printf(m, "processor\t\t: %ld\n", n);
+       sprintf(fmt, "cpu model\t\t: %%s V%%d.%%d%s\n",

diff --git a/target/linux/generic-2.6/patches-2.6.32/021-mips_image_cmdline_hack.patch b/target/linux/generic-2.6/patches-2.6.32/021-mips_image_cmdline_hack.patch
new file mode 100644 (file)
index 0000000..b63c763
--- /dev/null
+++ b/target/linux/generic-2.6/patches-2.6.32/021-mips_image_cmdline_hack.patch
@@ -0,0 +1,28 @@
+--- a/arch/mips/Kconfig
++++ b/arch/mips/Kconfig
+@@ -842,6 +842,10 @@ 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
+@@ -143,6 +143,12 @@ 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-2.6/patches-2.6.32/025-mips_disable_fpu.patch b/target/linux/generic-2.6/patches-2.6.32/025-mips_disable_fpu.patch
new file mode 100644 (file)
index 0000000..087a9a9
--- /dev/null
+++ b/target/linux/generic-2.6/patches-2.6.32/025-mips_disable_fpu.patch
@@ -0,0 +1,155 @@
+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 <florian@openwrt.org>
+--
+--- a/arch/mips/Kconfig
++++ b/arch/mips/Kconfig
+@@ -827,6 +827,17 @@ config I8259
+ config MIPS_BONITO64
+       bool
+ 
++config MIPS_FPU_EMU
++      bool
++      default n
++      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
+@@ -2,12 +2,14 @@
+ # 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
+ 
+ EXTRA_CFLAGS += -Werror
+--- a/arch/mips/math-emu/cp1emu.c
++++ b/arch/mips/math-emu/cp1emu.c
+@@ -56,6 +56,12 @@
+ #endif
+ #define __mips 4
+ 
++/* Further private data for which no space exists in mips_fpu_struct */
++
++struct mips_fpu_emulator_stats fpuemustats;
++
++#ifdef CONFIG_MIPS_FPU_EMU
++
+ /* Function which emulates a floating point instruction. */
+ 
+ static int fpu_emu(struct pt_regs *, struct mips_fpu_struct *,
+@@ -66,10 +72,6 @@ static int fpux_emu(struct pt_regs *,
+       struct mips_fpu_struct *, mips_instruction);
+ #endif
+ 
+-/* Further private data for which no space exists in mips_fpu_struct */
+-
+-struct mips_fpu_emulator_stats fpuemustats;
+-
+ /* Control registers */
+ 
+ #define FPCREG_RID    0       /* $0  = revision id */
+@@ -1273,6 +1275,13 @@ int fpu_emulator_cop1Handler(struct pt_r
+ 
+       return sig;
+ }
++#else
++int fpu_emulator_cop1Handler(struct pt_regs *xcp, struct mips_fpu_struct *ctx,
++        int has_fpu)
++{
++      return 0;
++}
++#endif /* CONFIG_MIPS_FPU_EMU */
+ 
+ #ifdef CONFIG_DEBUG_FS
+ extern struct dentry *mips_debugfs_dir;
+--- 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-2.6/patches-2.6.32/027-mips_module_reloc.patch b/target/linux/generic-2.6/patches-2.6.32/027-mips_module_reloc.patch
new file mode 100644 (file)
index 0000000..f65a09c
--- /dev/null
+++ b/target/linux/generic-2.6/patches-2.6.32/027-mips_module_reloc.patch
@@ -0,0 +1,331 @@
+--- a/arch/mips/Makefile
++++ b/arch/mips/Makefile
+@@ -83,7 +83,7 @@ all-$(CONFIG_BOOT_ELF64)     := $(vmlinux-64
+ cflags-y                      += -G 0 -mno-abicalls -fno-pic -pipe
+ cflags-y                      += -msoft-float
+ LDFLAGS_vmlinux                       += -G 0 -static -n -nostdlib
+-MODFLAGS                      += -mlong-calls
++MODFLAGS                      += -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 *plt_tbl;
++      unsigned int core_plt_offset;
++      unsigned int core_plt_size;
++      unsigned int init_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
+@@ -43,6 +43,117 @@ 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
+@@ -58,21 +169,68 @@ void *module_alloc(unsigned long size)
+ 
+       return __vmalloc_area(area, GFP_KERNEL, PAGE_KERNEL);
+ #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);
++      }
+ }
+ 
+ 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.core_plt_offset = 0;
++      mod->arch.core_plt_size = core_size;
++      mod->arch.init_plt_offset = core_size;
++      mod->arch.plt_tbl = kmalloc(core_size + init_size, GFP_KERNEL);
++      if (!mod->arch.plt_tbl)
++              return -ENOMEM;
++
+       return 0;
+ }
+ 
+@@ -95,28 +253,40 @@ 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;
++
++      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 */
+ 
+-      *location = (*location & ~0x03ffffff) |
+-                  ((*location + (v >> 2)) & 0x03ffffff);
++      return (Elf_Addr) tramp;
++}
++
++static Elf_Addr add_plt_entry(struct module *me, void *location, Elf_Addr v)
++{
++      if (location >= me->module_core &&
++          location < me->module_core + me->core_size)
++              return add_plt_entry_to(&me->arch.core_plt_offset,
++                              me->arch.plt_tbl, v);
++
++      if (location >= me->module_init &&
++          location < me->module_init + me->init_size)
++              return add_plt_entry_to(&me->arch.init_plt_offset,
++                              me->arch.plt_tbl, v);
+ 
+       return 0;
+ }
+ 
+-static int apply_r_mips_26_rela(struct module *me, u32 *location, Elf_Addr 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",
+@@ -125,17 +295,31 @@ 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;
+@@ -400,11 +584,23 @@ 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.core_plt_offset == 0 &&
++          me->arch.init_plt_offset == me->arch.core_plt_size &&
++          is_phys_addr(me->module_core)) {
++              kfree(me->arch.plt_tbl);
++              me->arch.plt_tbl = NULL;
++      }
++
+       return 0;
+ }
+ 
+ void module_arch_cleanup(struct module *mod)
+ {
++      if (mod->arch.plt_tbl)
++              kfree(mod->arch.plt_tbl);
+       spin_lock_irq(&dbe_lock);
+       list_del(&mod->arch.dbe_list);
+       spin_unlock_irq(&dbe_lock);

diff --git a/target/linux/generic-2.6/patches-2.6.32/028-module_exports.patch b/target/linux/generic-2.6/patches-2.6.32/028-module_exports.patch
new file mode 100644 (file)
index 0000000..b06939f
--- /dev/null
+++ b/target/linux/generic-2.6/patches-2.6.32/028-module_exports.patch
@@ -0,0 +1,115 @@
+--- 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 VMLINUX_SYMBOL
+ #define VMLINUX_SYMBOL(_sym_) _sym_
+ #endif
+@@ -254,35 +275,35 @@
+       /* 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) = .;        \
+       }                                                               \
+                                                                       \
+@@ -323,7 +344,13 @@
+                                                                       \
+       /* Kernel symbol table: strings */                              \
+         __ksymtab_strings : AT(ADDR(__ksymtab_strings) - LOAD_OFFSET) {       \
+-              *(__ksymtab_strings)                                    \
++              SYMTAB_KEEP_STR                                         \
++      }                                                               \
++                                                                      \
++      /DISCARD/ : {                                                   \
++              SYMTAB_DISCARD                                          \
++              SYMTAB_DISCARD_GPL                                      \
++              SYMTAB_DISCARD_STR                                      \
+       }                                                               \
+                                                                       \
+       /* __*init sections */                                          \
+--- a/include/linux/module.h
++++ b/include/linux/module.h
+@@ -192,16 +192,24 @@ void *__symbol_get_gpl(const char *symbo
+ #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-2.6/patches-2.6.32/029-arm_module_unresolved_weak_sym.patch b/target/linux/generic-2.6/patches-2.6.32/029-arm_module_unresolved_weak_sym.patch
new file mode 100644 (file)
index 0000000..8a3b2e2
--- /dev/null
+++ b/target/linux/generic-2.6/patches-2.6.32/029-arm_module_unresolved_weak_sym.patch
@@ -0,0 +1,13 @@
+--- a/arch/arm/kernel/module.c
++++ b/arch/arm/kernel/module.c
+@@ -121,6 +121,10 @@ 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-2.6/patches-2.6.32/030-pci_disable_common_quirks.patch b/target/linux/generic-2.6/patches-2.6.32/030-pci_disable_common_quirks.patch
new file mode 100644 (file)
index 0000000..4050cf1
--- /dev/null
+++ b/target/linux/generic-2.6/patches-2.6.32/030-pci_disable_common_quirks.patch
@@ -0,0 +1,43 @@
+--- a/drivers/pci/Kconfig
++++ b/drivers/pci/Kconfig
+@@ -51,6 +51,12 @@ config PCI_STUB
+ 
+         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
+@@ -96,6 +96,7 @@ static void __devinit quirk_resource_ali
+ }
+ DECLARE_PCI_FIXUP_HEADER(PCI_ANY_ID, PCI_ANY_ID, quirk_resource_alignment);
+ 
++#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.
+@@ -1884,7 +1885,9 @@ 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)
+ {
+@@ -2515,6 +2518,7 @@ DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_I
+ DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, 0x150d, quirk_i82576_sriov);
+ 
+ #endif        /* CONFIG_PCI_IOV */
++#endif /* !CONFIG_PCI_DISABLE_COMMON_QUIRKS */
+ 
+ static void pci_do_fixups(struct pci_dev *dev, struct pci_fixup *f,
+                         struct pci_fixup *end)

diff --git a/target/linux/generic-2.6/patches-2.6.32/031-ppc_gcc_build_fix.patch b/target/linux/generic-2.6/patches-2.6.32/031-ppc_gcc_build_fix.patch
new file mode 100644 (file)
index 0000000..6945ebf
--- /dev/null
+++ b/target/linux/generic-2.6/patches-2.6.32/031-ppc_gcc_build_fix.patch
@@ -0,0 +1,226 @@
+GCC 4.4.x looks to be adding support for generating out-of-line register
+saves/restores based on:
+
+http://gcc.gnu.org/ml/gcc-patches/2008-04/msg01678.html
+
+This breaks the kernel build as we'd have to link with libgcc to get the
+implementation of the register save/restores.
+
+To workaround this issue, we just stole the save/restore code from gcc
+and simplified it down for our needs (integer only).  We only do this if
+PPC32 as gcc makes believe the linker on ppc64 will deal with this and
+only if CONFIG_CC_OPTIMIZE_FOR_SIZE is set (thus -Os).
+
+Signed-off-by: Kumar Gala <[EMAIL PROTECTED]>
+---
+
+If someone using cutting edge toolchains for ppc64 could test and make
+sure if we enable CONFIG_CC_OPTIMIZE_FOR_SIZE things work that would be
+nice.
+
+- k
+
+ arch/powerpc/kernel/misc_32.S   |   77 +++++++++++++++++++++++++++
+ arch/powerpc/kernel/ppc_ksyms.c |  111 +++++++++++++++++++++++++++++++++++++++
+ 2 files changed, 188 insertions(+), 0 deletions(-)
+
+--- a/arch/powerpc/kernel/misc_32.S
++++ b/arch/powerpc/kernel/misc_32.S
+@@ -820,3 +820,80 @@ relocate_new_kernel_end:
+ relocate_new_kernel_size:
+       .long relocate_new_kernel_end - relocate_new_kernel
+ #endif
++
++#if defined(CONFIG_PPC32) && defined(CONFIG_CC_OPTIMIZE_FOR_SIZE)
++/* Routines for saving integer registers, called by the compiler.  */
++/* Called with r11 pointing to the stack header word of the caller of the */
++/* function, just beyond the end of the integer save area.  */
++
++_GLOBAL(_savegpr_14)   stw     14,-72(11)      /* save gp registers */
++_GLOBAL(_savegpr_15)   stw     15,-68(11)
++_GLOBAL(_savegpr_16)   stw     16,-64(11)
++_GLOBAL(_savegpr_17)   stw     17,-60(11)
++_GLOBAL(_savegpr_18)   stw     18,-56(11)
++_GLOBAL(_savegpr_19)   stw     19,-52(11)
++_GLOBAL(_savegpr_20)   stw     20,-48(11)
++_GLOBAL(_savegpr_21)   stw     21,-44(11)
++_GLOBAL(_savegpr_22)   stw     22,-40(11)
++_GLOBAL(_savegpr_23)   stw     23,-36(11)
++_GLOBAL(_savegpr_24)   stw     24,-32(11)
++_GLOBAL(_savegpr_25)   stw     25,-28(11)
++_GLOBAL(_savegpr_26)   stw     26,-24(11)
++_GLOBAL(_savegpr_27)   stw     27,-20(11)
++_GLOBAL(_savegpr_28)   stw     28,-16(11)
++_GLOBAL(_savegpr_29)   stw     29,-12(11)
++_GLOBAL(_savegpr_30)   stw     30,-8(11)
++_GLOBAL(_savegpr_31)   stw     31,-4(11)
++                       blr
++
++/* Routines for restoring integer registers, called by the compiler.  */
++/* Called with r11 pointing to the stack header word of the caller of the */
++/* function, just beyond the end of the integer restore area.  */
++
++_GLOBAL(_restgpr_14)   lwz     14,-72(11)      /* restore gp registers */
++_GLOBAL(_restgpr_15)   lwz     15,-68(11)
++_GLOBAL(_restgpr_16)   lwz     16,-64(11)
++_GLOBAL(_restgpr_17)   lwz     17,-60(11)
++_GLOBAL(_restgpr_18)   lwz     18,-56(11)
++_GLOBAL(_restgpr_19)   lwz     19,-52(11)
++_GLOBAL(_restgpr_20)   lwz     20,-48(11)
++_GLOBAL(_restgpr_21)   lwz     21,-44(11)
++_GLOBAL(_restgpr_22)   lwz     22,-40(11)
++_GLOBAL(_restgpr_23)   lwz     23,-36(11)
++_GLOBAL(_restgpr_24)   lwz     24,-32(11)
++_GLOBAL(_restgpr_25)   lwz     25,-28(11)
++_GLOBAL(_restgpr_26)   lwz     26,-24(11)
++_GLOBAL(_restgpr_27)   lwz     27,-20(11)
++_GLOBAL(_restgpr_28)   lwz     28,-16(11)
++_GLOBAL(_restgpr_29)   lwz     29,-12(11)
++_GLOBAL(_restgpr_30)   lwz     30,-8(11)
++_GLOBAL(_restgpr_31)   lwz     31,-4(11)
++                       blr
++
++/* Routines for restoring integer registers, called by the compiler.  */
++/* Called with r11 pointing to the stack header word of the caller of the */
++/* function, just beyond the end of the integer restore area.  */
++
++_GLOBAL(_restgpr_14_x) lwz     14,-72(11)      /* restore gp registers */
++_GLOBAL(_restgpr_15_x) lwz     15,-68(11)
++_GLOBAL(_restgpr_16_x) lwz     16,-64(11)
++_GLOBAL(_restgpr_17_x) lwz     17,-60(11)
++_GLOBAL(_restgpr_18_x) lwz     18,-56(11)
++_GLOBAL(_restgpr_19_x) lwz     19,-52(11)
++_GLOBAL(_restgpr_20_x) lwz     20,-48(11)
++_GLOBAL(_restgpr_21_x) lwz     21,-44(11)
++_GLOBAL(_restgpr_22_x) lwz     22,-40(11)
++_GLOBAL(_restgpr_23_x) lwz     23,-36(11)
++_GLOBAL(_restgpr_24_x) lwz     24,-32(11)
++_GLOBAL(_restgpr_25_x) lwz     25,-28(11)
++_GLOBAL(_restgpr_26_x) lwz     26,-24(11)
++_GLOBAL(_restgpr_27_x) lwz     27,-20(11)
++_GLOBAL(_restgpr_28_x) lwz     28,-16(11)
++_GLOBAL(_restgpr_29_x) lwz     29,-12(11)
++_GLOBAL(_restgpr_30_x) lwz     30,-8(11)
++_GLOBAL(_restgpr_31_x) lwz     0,4(11)
++                       lwz     31,-4(11)
++                       mtlr    0
++                       mr      1,11
++                       blr
++#endif
+--- a/arch/powerpc/kernel/ppc_ksyms.c
++++ b/arch/powerpc/kernel/ppc_ksyms.c
+@@ -188,3 +188,114 @@ EXPORT_SYMBOL(__mtdcr);
+ EXPORT_SYMBOL(__mfdcr);
+ #endif
+ EXPORT_SYMBOL(empty_zero_page);
++
++#if defined(CONFIG_PPC32) && defined(CONFIG_CC_OPTIMIZE_FOR_SIZE)
++void _savegpr_14(void);
++void _savegpr_15(void);
++void _savegpr_16(void);
++void _savegpr_17(void);
++void _savegpr_18(void);
++void _savegpr_19(void);
++void _savegpr_20(void);
++void _savegpr_21(void);
++void _savegpr_22(void);
++void _savegpr_23(void);
++void _savegpr_24(void);
++void _savegpr_25(void);
++void _savegpr_26(void);
++void _savegpr_27(void);
++void _savegpr_28(void);
++void _savegpr_29(void);
++void _savegpr_30(void);
++void _savegpr_31(void);
++void _restgpr_14(void);
++void _restgpr_15(void);
++void _restgpr_16(void);
++void _restgpr_17(void);
++void _restgpr_18(void);
++void _restgpr_19(void);
++void _restgpr_20(void);
++void _restgpr_21(void);
++void _restgpr_22(void);
++void _restgpr_23(void);
++void _restgpr_24(void);
++void _restgpr_25(void);
++void _restgpr_26(void);
++void _restgpr_27(void);
++void _restgpr_28(void);
++void _restgpr_29(void);
++void _restgpr_30(void);
++void _restgpr_31(void);
++void _restgpr_14_x(void);
++void _restgpr_15_x(void);
++void _restgpr_16_x(void);
++void _restgpr_17_x(void);
++void _restgpr_18_x(void);
++void _restgpr_19_x(void);
++void _restgpr_20_x(void);
++void _restgpr_21_x(void);
++void _restgpr_22_x(void);
++void _restgpr_23_x(void);
++void _restgpr_24_x(void);
++void _restgpr_25_x(void);
++void _restgpr_26_x(void);
++void _restgpr_27_x(void);
++void _restgpr_28_x(void);
++void _restgpr_29_x(void);
++void _restgpr_30_x(void);
++void _restgpr_31_x(void);
++EXPORT_SYMBOL(_savegpr_14);
++EXPORT_SYMBOL(_savegpr_15);
++EXPORT_SYMBOL(_savegpr_16);
++EXPORT_SYMBOL(_savegpr_17);
++EXPORT_SYMBOL(_savegpr_18);
++EXPORT_SYMBOL(_savegpr_19);
++EXPORT_SYMBOL(_savegpr_20);
++EXPORT_SYMBOL(_savegpr_21);
++EXPORT_SYMBOL(_savegpr_22);
++EXPORT_SYMBOL(_savegpr_23);
++EXPORT_SYMBOL(_savegpr_24);
++EXPORT_SYMBOL(_savegpr_25);
++EXPORT_SYMBOL(_savegpr_26);
++EXPORT_SYMBOL(_savegpr_27);
++EXPORT_SYMBOL(_savegpr_28);
++EXPORT_SYMBOL(_savegpr_29);
++EXPORT_SYMBOL(_savegpr_30);
++EXPORT_SYMBOL(_savegpr_31);
++EXPORT_SYMBOL(_restgpr_14);
++EXPORT_SYMBOL(_restgpr_15);
++EXPORT_SYMBOL(_restgpr_16);
++EXPORT_SYMBOL(_restgpr_17);
++EXPORT_SYMBOL(_restgpr_18);
++EXPORT_SYMBOL(_restgpr_19);
++EXPORT_SYMBOL(_restgpr_20);
++EXPORT_SYMBOL(_restgpr_21);
++EXPORT_SYMBOL(_restgpr_22);
++EXPORT_SYMBOL(_restgpr_23);
++EXPORT_SYMBOL(_restgpr_24);
++EXPORT_SYMBOL(_restgpr_25);
++EXPORT_SYMBOL(_restgpr_26);
++EXPORT_SYMBOL(_restgpr_27);
++EXPORT_SYMBOL(_restgpr_28);
++EXPORT_SYMBOL(_restgpr_29);
++EXPORT_SYMBOL(_restgpr_30);
++EXPORT_SYMBOL(_restgpr_31);
++EXPORT_SYMBOL(_restgpr_14_x);
++EXPORT_SYMBOL(_restgpr_15_x);
++EXPORT_SYMBOL(_restgpr_16_x);
++EXPORT_SYMBOL(_restgpr_17_x);
++EXPORT_SYMBOL(_restgpr_18_x);
++EXPORT_SYMBOL(_restgpr_19_x);
++EXPORT_SYMBOL(_restgpr_20_x);
++EXPORT_SYMBOL(_restgpr_21_x);
++EXPORT_SYMBOL(_restgpr_22_x);
++EXPORT_SYMBOL(_restgpr_23_x);
++EXPORT_SYMBOL(_restgpr_24_x);
++EXPORT_SYMBOL(_restgpr_25_x);
++EXPORT_SYMBOL(_restgpr_26_x);
++EXPORT_SYMBOL(_restgpr_27_x);
++EXPORT_SYMBOL(_restgpr_28_x);
++EXPORT_SYMBOL(_restgpr_29_x);
++EXPORT_SYMBOL(_restgpr_30_x);
++EXPORT_SYMBOL(_restgpr_31_x);
++#endif /* CONFIG_PPC32 && CONFIG_CC_OPTIMIZE_FOR_SIZE */

diff --git a/target/linux/generic-2.6/patches-2.6.32/060-block2mtd_init.patch b/target/linux/generic-2.6/patches-2.6.32/060-block2mtd_init.patch
new file mode 100644 (file)
index 0000000..50df4aa
--- /dev/null
+++ b/target/linux/generic-2.6/patches-2.6.32/060-block2mtd_init.patch
@@ -0,0 +1,110 @@
+--- a/drivers/mtd/devices/block2mtd.c
++++ b/drivers/mtd/devices/block2mtd.c
+@@ -14,6 +14,7 @@
+ #include <linux/list.h>
+ #include <linux/init.h>
+ #include <linux/mtd/mtd.h>
++#include <linux/mtd/partitions.h>
+ #include <linux/buffer_head.h>
+ #include <linux/mutex.h>
+ #include <linux/mount.h>
+@@ -232,10 +233,11 @@ 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)
+ {
+       struct block_device *bdev;
+       struct block2mtd_dev *dev;
++      struct mtd_partition *part;
+       char *name;
+ 
+       if (!devname)
+@@ -273,17 +275,17 @@ static struct block2mtd_dev *add_device(
+ 
+       mutex_init(&dev->write_mutex);
+ 
+-      /* Setup the MTD structure */
+-      /* make the name contain the block device in */
+-      name = kmalloc(sizeof("block2mtd: ") + strlen(devname) + 1,
+-                      GFP_KERNEL);
++      if (!mtdname)
++              mtdname = devname;
++
++      name = kmalloc(strlen(mtdname) + 1, GFP_KERNEL);
+       if (!name)
+               goto devinit_err;
+ 
+-      sprintf(name, "block2mtd: %s", devname);
++      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;
+@@ -296,14 +298,17 @@ 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 didnt 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:
+@@ -376,9 +381,9 @@ 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;
+@@ -389,7 +394,7 @@ 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)
+@@ -408,8 +413,10 @@ 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;
+ }
+@@ -443,7 +450,7 @@ static int block2mtd_setup(const char *v
+ 
+ 
+ module_param_call(block2mtd, block2mtd_setup, NULL, NULL, 0200);
+-MODULE_PARM_DESC(block2mtd, "Device to use. \"block2mtd=<dev>[,<erasesize>]\"");
++MODULE_PARM_DESC(block2mtd, "Device to use. \"block2mtd=<dev>[,<erasesize>[,<name>]]\"");
+ 
+ static int __init block2mtd_init(void)
+ {

diff --git a/target/linux/generic-2.6/patches-2.6.32/065-rootfs_split.patch b/target/linux/generic-2.6/patches-2.6.32/065-rootfs_split.patch
new file mode 100644 (file)
index 0000000..307e5ee
--- /dev/null
+++ b/target/linux/generic-2.6/patches-2.6.32/065-rootfs_split.patch
@@ -0,0 +1,624 @@
+--- a/drivers/mtd/Kconfig
++++ b/drivers/mtd/Kconfig
+@@ -53,6 +53,16 @@ config MTD_PARTITIONS
+         devices. Partitioning on NFTL 'devices' is a different - that's the
+         'normal' form of partitioning used on a block device.
+ 
++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"
+       depends on MTD_PARTITIONS
+--- a/drivers/mtd/mtdpart.c
++++ b/drivers/mtd/mtdpart.c
+@@ -18,6 +18,8 @@
+ #include <linux/mtd/mtd.h>
+ #include <linux/mtd/partitions.h>
+ #include <linux/mtd/compatmac.h>
++#include <linux/root_dev.h>
++#include <linux/magic.h>
+ 
+ /* Our partition linked list */
+ static LIST_HEAD(mtd_partitions);
+@@ -35,7 +37,7 @@ 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
+@@ -503,6 +505,150 @@ out_register:
+       return slave;
+ }
+ 
++#ifdef CONFIG_MTD_ROOTFS_SPLIT
++#define ROOTFS_SPLIT_NAME "rootfs_data"
++#define ROOTFS_REMOVED_NAME "<removed>"
++
++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 split_offset = 0;
++      int ret;
++
++      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 = add_one_partition(master, dpart, 0, split_offset);
++      if (!slave) {
++              kfree(dpart);
++              return -ENOMEM;
++      }
++      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
+@@ -518,7 +664,7 @@ int add_mtd_partitions(struct mtd_info *
+ {
+       struct mtd_part *slave;
+       uint64_t cur_offset = 0;
+-      int i;
++      int i, ret;
+ 
+       printk(KERN_NOTICE "Creating %d MTD partitions on \"%s\":\n", nbparts, master->name);
+ 
+@@ -526,6 +672,21 @@ int add_mtd_partitions(struct mtd_info *
+               slave = add_one_partition(master, parts + i, i, cur_offset);
+               if (!slave)
+                       return -ENOMEM;
++
++              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;
+       }
+ 
+@@ -533,6 +694,32 @@ 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
+@@ -29,6 +29,8 @@ struct block2mtd_dev {
+       struct block_device *blkdev;
+       struct mtd_info mtd;
+       struct mutex write_mutex;
++      rwlock_t bdev_mutex;
++      char devname[0];
+ };
+ 
+ 
+@@ -81,6 +83,12 @@ 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;
+ }
+ 
+@@ -210,52 +246,29 @@ static int block2mtd_write(struct mtd_in
+ static void block2mtd_sync(struct mtd_info *mtd)
+ {
+       struct block2mtd_dev *dev = mtd->priv;
+-      sync_blockdev(dev->blkdev);
+-      return;
+-}
+-
+-
+-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);
+-              close_bdev_exclusive(dev->blkdev, FMODE_READ|FMODE_WRITE);
+-      }
++      read_lock(&dev->bdev_mutex);
++      if (dev->blkdev)
++              sync_blockdev(dev->blkdev);
++      read_unlock(&dev->bdev_mutex);
+ 
+-      kfree(dev);
++      return;
+ }
+ 
+ 
+-/* FIXME: ensure that mtd->size % erase_size == 0 */
+-static struct block2mtd_dev *add_device(char *devname, int erase_size, const char *mtdname)
++static int _open_bdev(struct block2mtd_dev *dev)
+ {
+       struct block_device *bdev;
+-      struct block2mtd_dev *dev;
+-      struct mtd_partition *part;
+-      char *name;
+-
+-      if (!devname)
+-              return NULL;
+-
+-      dev = kzalloc(sizeof(struct block2mtd_dev), GFP_KERNEL);
+-      if (!dev)
+-              return NULL;
+ 
+       /* Get a handle on the device */
+-      bdev = open_bdev_exclusive(devname, FMODE_READ|FMODE_WRITE, NULL);
++      bdev = open_bdev_exclusive(dev->devname, FMODE_READ|FMODE_WRITE, NULL);
+ #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(devname);
++              dev_t devt = name_to_dev_t(dev->devname);
+               if (devt) {
+                       bdev = open_by_devnum(devt, FMODE_WRITE | FMODE_READ);
+               }
+@@ -263,17 +276,97 @@ static struct block2mtd_dev *add_device(
+ #endif
+ 
+       if (IS_ERR(bdev)) {
+-              ERROR("error: cannot open device %s", devname);
+-              goto devinit_err;
++              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");
+-              goto devinit_err;
++              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);
++      close_bdev_exclusive(dev->blkdev, FMODE_READ|FMODE_WRITE);
++      dev->blkdev = NULL;
++}
++
++static void block2mtd_free_device(struct block2mtd_dev *dev)
++{
++      if (!dev)
++              return;
++
++      kfree(dev->mtd.name);
++      _close_bdev(dev);
++      kfree(dev);
++}
++
++
++static int block2mtd_refresh(struct mtd_info *mtd)
++{
++      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 = open_by_devnum(devt, FMODE_WRITE | FMODE_READ);
++      if (!bdev || !bdev->bd_disk)
++              err = -EINVAL;
++      else {
++              err = rescan_partitions(bdev->bd_disk, bdev);
++      }
++      if (bdev)
++              close_bdev_exclusive(bdev, FMODE_READ|FMODE_WRITE);
++
++      /* 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;
++
++      if (!devname)
++              return NULL;
++
++      dev = kzalloc(sizeof(struct block2mtd_dev) + strlen(devname) + 1, GFP_KERNEL);
++      if (!dev)
++              return NULL;
++
++      strcpy(dev->devname, devname);
++
++      if (_open_bdev(dev))
++              goto devinit_err;
++
+       mutex_init(&dev->write_mutex);
++      rwlock_init(&dev->bdev_mutex);
+ 
+       if (!mtdname)
+               mtdname = devname;
+@@ -297,6 +390,7 @@ 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
+@@ -18,6 +18,7 @@
+ 
+ #include <linux/mtd/mtd.h>
+ #include <linux/mtd/compatmac.h>
++#include <linux/mtd/partitions.h>
+ 
+ #include <asm/uaccess.h>
+ 
+@@ -814,6 +815,13 @@ static int mtd_ioctl(struct inode *inode
+               file->f_pos = 0;
+               break;
+       }
++#ifdef CONFIG_MTD_PARTITIONS
++      case MTDREFRESH:
++      {
++              ret = refresh_mtd_partitions(mtd);
++              break;
++      }
++#endif
+ 
+       default:
+               ret = -ENOTTY;
+--- a/include/linux/mtd/mtd.h
++++ b/include/linux/mtd/mtd.h
+@@ -101,6 +101,7 @@ struct mtd_oob_ops {
+       uint8_t         *oobbuf;
+ };
+ 
++struct mtd_info;
+ struct mtd_info {
+       u_char type;
+       uint32_t flags;
+@@ -241,6 +242,9 @@ 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
+@@ -110,6 +110,7 @@ struct otp_info {
+ #define MEMERASE64            _IOW('M', 20, struct erase_info_user64)
+ #define MEMWRITEOOB64         _IOWR('M', 21, struct mtd_oob_buf64)
+ #define MEMREADOOB64          _IOWR('M', 22, struct mtd_oob_buf64)
++#define MTDREFRESH            _IO('M', 23)
+ 
+ /*
+  * Obsolete legacy interface. Keep it in order not to break userspace

diff --git a/target/linux/generic-2.6/patches-2.6.32/066-block2mtd_probe.patch b/target/linux/generic-2.6/patches-2.6.32/066-block2mtd_probe.patch
new file mode 100644 (file)
index 0000000..b2b1a34
--- /dev/null
+++ b/target/linux/generic-2.6/patches-2.6.32/066-block2mtd_probe.patch
@@ -0,0 +1,10 @@
+--- 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 = open_by_devnum(devt, FMODE_WRITE | FMODE_READ);

diff --git a/target/linux/generic-2.6/patches-2.6.32/070-redboot_space.patch b/target/linux/generic-2.6/patches-2.6.32/070-redboot_space.patch
new file mode 100644 (file)
index 0000000..6ace83c
--- /dev/null
+++ b/target/linux/generic-2.6/patches-2.6.32/070-redboot_space.patch
@@ -0,0 +1,30 @@
+--- a/drivers/mtd/redboot.c
++++ b/drivers/mtd/redboot.c
+@@ -249,14 +249,21 @@ 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-2.6/patches-2.6.32/071-redboot_boardconfig.patch b/target/linux/generic-2.6/patches-2.6.32/071-redboot_boardconfig.patch
new file mode 100644 (file)
index 0000000..f9bc4fe
--- /dev/null
+++ b/target/linux/generic-2.6/patches-2.6.32/071-redboot_boardconfig.patch
@@ -0,0 +1,60 @@
+--- a/drivers/mtd/redboot.c
++++ b/drivers/mtd/redboot.c
+@@ -11,6 +11,8 @@
+ #include <linux/mtd/mtd.h>
+ #include <linux/mtd/partitions.h>
+ 
++#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
+@@ -41,6 +43,7 @@ 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;
+@@ -209,14 +212,14 @@ 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);
+@@ -235,6 +238,8 @@ static int parse_redboot_partitions(stru
+       }
+ #endif
+       for ( ; i<nrparts; i++) {
++              if(max_offset < buf[i].flash_base + buf[i].size)
++                      max_offset = buf[i].flash_base + buf[i].size;
+               parts[i].size = fl->img->size;
+               parts[i].offset = fl->img->flash_base;
+               parts[i].name = names;
+@@ -268,6 +273,14 @@ 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-2.6/patches-2.6.32/080-mtd_plat_nand_chip_fixup.patch b/target/linux/generic-2.6/patches-2.6.32/080-mtd_plat_nand_chip_fixup.patch
new file mode 100644 (file)
index 0000000..3897c33
--- /dev/null
+++ b/target/linux/generic-2.6/patches-2.6.32/080-mtd_plat_nand_chip_fixup.patch
@@ -0,0 +1,32 @@
+--- a/include/linux/mtd/nand.h
++++ b/include/linux/mtd/nand.h
+@@ -576,6 +576,7 @@ 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
+@@ -80,7 +80,18 @@ static int __devinit plat_nand_probe(str
+       }
+ 
+       /* Scan to find existance of the device */
+-      if (nand_scan(&data->mtd, 1)) {
++      if (nand_scan_ident(&data->mtd, 1)) {
++              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)) {
+               res = -ENXIO;
+               goto out;
+       }

diff --git a/target/linux/generic-2.6/patches-2.6.32/081-mtd_myloader_partition_parser.patch b/target/linux/generic-2.6/patches-2.6.32/081-mtd_myloader_partition_parser.patch
new file mode 100644 (file)
index 0000000..61b822e
--- /dev/null
+++ b/target/linux/generic-2.6/patches-2.6.32/081-mtd_myloader_partition_parser.patch
@@ -0,0 +1,35 @@
+--- a/drivers/mtd/Kconfig
++++ b/drivers/mtd/Kconfig
+@@ -181,6 +181,22 @@ config MTD_AR7_PARTS
+       ---help---
+         TI AR7 partitioning support
+ 
++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
+@@ -13,6 +13,7 @@ obj-$(CONFIG_MTD_CMDLINE_PARTS) += cmdli
+ obj-$(CONFIG_MTD_AFS_PARTS)   += afs.o
+ obj-$(CONFIG_MTD_AR7_PARTS)   += ar7part.o
+ obj-$(CONFIG_MTD_OF_PARTS)      += ofpart.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-2.6/patches-2.6.32/082-mtd_info_move_forward_decl.patch b/target/linux/generic-2.6/patches-2.6.32/082-mtd_info_move_forward_decl.patch
new file mode 100644 (file)
index 0000000..13f0a21
--- /dev/null
+++ b/target/linux/generic-2.6/patches-2.6.32/082-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-2.6/patches-2.6.32/090-mtd_fix_nand_correct_data_return_code.patch b/target/linux/generic-2.6/patches-2.6.32/090-mtd_fix_nand_correct_data_return_code.patch
new file mode 100644 (file)
index 0000000..97148d0
--- /dev/null
+++ b/target/linux/generic-2.6/patches-2.6.32/090-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
+@@ -492,8 +492,7 @@ 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-2.6/patches-2.6.32/100-netfilter_layer7_2.21.patch b/target/linux/generic-2.6/patches-2.6.32/100-netfilter_layer7_2.21.patch
new file mode 100644 (file)
index 0000000..be7d97f
--- /dev/null
+++ b/target/linux/generic-2.6/patches-2.6.32/100-netfilter_layer7_2.21.patch
@@ -0,0 +1,2132 @@
+--- /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 */
+--- a/include/net/netfilter/nf_conntrack.h
++++ b/include/net/netfilter/nf_conntrack.h
+@@ -116,6 +116,22 @@ struct nf_conn {
+       u_int32_t secmark;
+ #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: */
+       union nf_conntrack_proto proto;
+ 
+--- a/net/netfilter/Kconfig
++++ b/net/netfilter/Kconfig
+@@ -858,6 +858,27 @@ 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 NF_CT_ACCT
++      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
+@@ -89,6 +89,7 @@ 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
+--- a/net/netfilter/nf_conntrack_core.c
++++ b/net/netfilter/nf_conntrack_core.c
+@@ -201,6 +201,14 @@ 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
+@@ -171,6 +171,12 @@ static int ct_seq_show(struct seq_file *
+               goto release;
+ #endif
+ 
++#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;
+ 
+--- /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; &regdummy = 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 <linux/string.h>
++
++
++#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';
++}
+--- /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 <winfield@freegates.be>,
++  xt_helper.c (C) 2002 Harald Welte and cls_layer7.c (C) 2003 Matthew Strait,
++  Ethan Sommer, Justin Levandoski.
++*/
++
++#include <linux/spinlock.h>
++#include <linux/version.h>
++#include <net/ip.h>
++#include <net/tcp.h>
++#include <linux/module.h>
++#include <linux/skbuff.h>
++#include <linux/netfilter.h>
++#include <net/netfilter/nf_conntrack.h>
++#include <net/netfilter/nf_conntrack_core.h>
++#if LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 27)
++#include <net/netfilter/nf_conntrack_extend.h>
++#include <net/netfilter/nf_conntrack_acct.h>
++#endif
++#include <linux/netfilter/x_tables.h>
++#include <linux/netfilter/xt_layer7.h>
++#include <linux/ctype.h>
++#include <linux/proc_fs.h>
++
++#include "regexp/regexp.c"
++
++MODULE_LICENSE("GPL");
++MODULE_AUTHOR("Matthew Strait <quadong@users.sf.net>, Ethan Sommer <sommere@users.sf.net>");
++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);

diff --git a/target/linux/generic-2.6/patches-2.6.32/101-netfilter_layer7_pktmatch.patch b/target/linux/generic-2.6/patches-2.6.32/101-netfilter_layer7_pktmatch.patch
new file mode 100644 (file)
index 0000000..f65e301
--- /dev/null
+++ b/target/linux/generic-2.6/patches-2.6.32/101-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-2.6/patches-2.6.32/110-netfilter_match_speedup.patch b/target/linux/generic-2.6/patches-2.6.32/110-netfilter_match_speedup.patch
new file mode 100644 (file)
index 0000000..2f4c7a2
--- /dev/null
+++ b/target/linux/generic-2.6/patches-2.6.32/110-netfilter_match_speedup.patch
@@ -0,0 +1,121 @@
+--- a/include/linux/netfilter_ipv4/ip_tables.h
++++ b/include/linux/netfilter_ipv4/ip_tables.h
+@@ -62,6 +62,7 @@ struct ipt_ip {
+ #define IPT_F_FRAG            0x01    /* Set if rule is a fragment rule */
+ #define IPT_F_GOTO            0x02    /* Set if jump is a goto */
+ #define IPT_F_MASK            0x03    /* All possible flag bits mask. */
++#define IPT_F_NO_DEF_MATCH    0x80    /* Internal: no default match rules present */
+ 
+ /* Values for "inv" field in struct ipt_ip. */
+ #define IPT_INV_VIA_IN                0x01    /* Invert the sense of IN IFACE. */
+--- a/net/ipv4/netfilter/ip_tables.c
++++ b/net/ipv4/netfilter/ip_tables.c
+@@ -88,6 +88,9 @@ ip_packet_match(const struct iphdr *ip,
+ 
+ #define FWINV(bool, invflg) ((bool) ^ !!(ipinfo->invflags & (invflg)))
+ 
++      if (ipinfo->flags & IPT_F_NO_DEF_MATCH)
++              return true;
++
+       if (FWINV((ip->saddr&ipinfo->smsk.s_addr) != ipinfo->src.s_addr,
+                 IPT_INV_SRCIP)
+           || FWINV((ip->daddr&ipinfo->dmsk.s_addr) != ipinfo->dst.s_addr,
+@@ -138,13 +141,35 @@ ip_packet_match(const struct iphdr *ip,
+               return false;
+       }
+ 
++#undef FWINV
+       return true;
+ }
+ 
+ static bool
+-ip_checkentry(const struct ipt_ip *ip)
++ip_checkentry(struct ipt_ip *ip)
+ {
+-      if (ip->flags & ~IPT_F_MASK) {
++#define FWINV(bool, invflg) ((bool) || (ip->invflags & (invflg)))
++
++      if (FWINV(ip->smsk.s_addr, IPT_INV_SRCIP) ||
++              FWINV(ip->dmsk.s_addr, IPT_INV_DSTIP))
++              goto has_match_rules;
++
++      if (FWINV(!!((const unsigned long *)ip->iniface_mask)[0],
++              IPT_INV_VIA_IN) ||
++          FWINV(!!((const unsigned long *)ip->outiface_mask)[0],
++              IPT_INV_VIA_OUT))
++              goto has_match_rules;
++
++      if (FWINV(ip->proto, IPT_INV_PROTO))
++              goto has_match_rules;
++
++      if (FWINV(ip->flags&IPT_F_FRAG, IPT_INV_FRAG))
++              goto has_match_rules;
++
++      ip->flags |= IPT_F_NO_DEF_MATCH;
++
++has_match_rules:
++      if (ip->flags & ~(IPT_F_MASK|IPT_F_NO_DEF_MATCH)) {
+               duprintf("Unknown flag bits set: %08X\n",
+                        ip->flags & ~IPT_F_MASK);
+               return false;
+@@ -154,6 +179,8 @@ ip_checkentry(const struct ipt_ip *ip)
+                        ip->invflags & ~IPT_INV_MASK);
+               return false;
+       }
++
++#undef FWINV
+       return true;
+ }
+ 
+@@ -196,7 +223,6 @@ static inline bool unconditional(const s
+       static const struct ipt_ip uncond;
+ 
+       return memcmp(ip, &uncond, sizeof(uncond)) == 0;
+-#undef FWINV
+ }
+ 
+ #if defined(CONFIG_NETFILTER_XT_TARGET_TRACE) || \
+@@ -321,8 +347,28 @@ ipt_do_table(struct sk_buff *skb,
+       struct xt_match_param mtpar;
+       struct xt_target_param tgpar;
+ 
+-      /* Initialization */
+       ip = ip_hdr(skb);
++
++      IP_NF_ASSERT(table->valid_hooks & (1 << hook));
++      xt_info_rdlock_bh();
++      private = table->private;
++      table_base = private->entries[smp_processor_id()];
++      e = get_entry(table_base, private->hook_entry[hook]);
++
++      if (e->target_offset <= sizeof(struct ipt_entry) &&
++              (e->ip.flags & IPT_F_NO_DEF_MATCH)) {
++                      struct ipt_entry_target *t = ipt_get_target(e);
++                      if (!t->u.kernel.target->target) {
++                              int v = ((struct ipt_standard_target *)t)->verdict;
++                              if ((v < 0) && (v != IPT_RETURN)) {
++                                      ADD_COUNTER(e->counters, ntohs(ip->tot_len), 1);
++                                      xt_info_rdunlock_bh();
++                                      return (unsigned)(-v) - 1;
++                              }
++                      }
++      }
++
++      /* Initialization */
+       indev = in ? in->name : nulldevname;
+       outdev = out ? out->name : nulldevname;
+       /* We handle fragments by dealing with the first fragment as
+@@ -339,13 +385,6 @@ ipt_do_table(struct sk_buff *skb,
+       mtpar.family  = tgpar.family = NFPROTO_IPV4;
+       mtpar.hooknum = tgpar.hooknum = hook;
+ 
+-      IP_NF_ASSERT(table->valid_hooks & (1 << hook));
+-      xt_info_rdlock_bh();
+-      private = table->private;
+-      table_base = private->entries[smp_processor_id()];
+-
+-      e = get_entry(table_base, private->hook_entry[hook]);
+-
+       /* For return from builtin chain */
+       back = get_entry(table_base, private->underflow[hook]);
+ 

diff --git a/target/linux/generic-2.6/patches-2.6.32/150-netfilter_imq.patch b/target/linux/generic-2.6/patches-2.6.32/150-netfilter_imq.patch
new file mode 100644 (file)
index 0000000..3509087
--- /dev/null
+++ b/target/linux/generic-2.6/patches-2.6.32/150-netfilter_imq.patch
@@ -0,0 +1,1260 @@
+--- /dev/null
++++ b/drivers/net/imq.c
+@@ -0,0 +1,571 @@
++/*
++ *             Pseudo-driver for the intermediate queue device.
++ *
++ *             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:    Patrick McHardy, <kaber@trash.net>
++ *
++ *            The first version was written by Martin Devera, <devik@cdi.cz>
++ *
++ * Credits:    Jan Rafaj <imq2t@cedric.vabo.cz>
++ *              - Update patch to 2.4.21
++ *             Sebastian Strollo <sstrollo@nortelnetworks.com>
++ *              - Fix "Dead-loop on netdevice imq"-issue
++ *             Marcel Sebek <sebek64@post.cz>
++ *              - Update to 2.6.2-rc1
++ *
++ *           After some time of inactivity there is a group taking care
++ *           of IMQ again: http://www.linuximq.net
++ *
++ *
++ *           2004/06/30 - New version of IMQ patch to kernels <=2.6.7
++ *             including the following changes:
++ *
++ *           - Correction of ipv6 support "+"s issue (Hasso Tepper)
++ *           - Correction of imq_init_devs() issue that resulted in
++ *           kernel OOPS unloading IMQ as module (Norbert Buchmuller)
++ *           - Addition of functionality to choose number of IMQ devices
++ *           during kernel config (Andre Correa)
++ *           - Addition of functionality to choose how IMQ hooks on
++ *           PRE and POSTROUTING (after or before NAT) (Andre Correa)
++ *           - Cosmetic corrections (Norbert Buchmuller) (Andre Correa)
++ *
++ *
++ *             2005/12/16 - IMQ versions between 2.6.7 and 2.6.13 were
++ *             released with almost no problems. 2.6.14-x was released
++ *             with some important changes: nfcache was removed; After
++ *             some weeks of trouble we figured out that some IMQ fields
++ *             in skb were missing in skbuff.c - skb_clone and copy_skb_header.
++ *             These functions are correctly patched by this new patch version.
++ *
++ *             Thanks for all who helped to figure out all the problems with
++ *             2.6.14.x: Patrick McHardy, Rune Kock, VeNoMouS, Max CtRiX,
++ *             Kevin Shanahan, Richard Lucassen, Valery Dachev (hopefully
++ *             I didn't forget anybody). I apologize again for my lack of time.
++ *
++ *
++ *             2008/06/17 - 2.6.25 - Changed imq.c to use qdisc_run() instead
++ *             of qdisc_restart() and moved qdisc_run() to tasklet to avoid
++ *             recursive locking. New initialization routines to fix 'rmmod' not
++ *             working anymore. Used code from ifb.c. (Jussi Kivilinna)
++ *
++ *             2008/08/06 - 2.6.26 - (JK)
++ *              - Replaced tasklet with 'netif_schedule()'.
++ *              - Cleaned up and added comments for imq_nf_queue().
++ *
++ *             2009/04/12
++ *              - Add skb_save_cb/skb_restore_cb helper functions for backuping
++ *                control buffer. This is needed because qdisc-layer on kernels
++ *                2.6.27 and newer overwrite control buffer. (Jussi Kivilinna)
++ *              - Add better locking for IMQ device. Hopefully this will solve
++ *                SMP issues. (Jussi Kivilinna)
++ *              - Port to 2.6.27
++ *              - Port to 2.6.28
++ *              - Port to 2.6.29 + fix rmmod not working
++ *
++ *             2009/04/20 - (Jussi Kivilinna)
++ *              - Use netdevice feature flags to avoid extra packet handling
++ *                by core networking layer and possibly increase performance.
++ *
++ *           Also, many thanks to pablo Sebastian Greco for making the initial
++ *           patch and to those who helped the testing.
++ *
++ *             More info at: http://www.linuximq.net/ (Andre Correa)
++ */
++
++#include <linux/module.h>
++#include <linux/kernel.h>
++#include <linux/moduleparam.h>
++#include <linux/list.h>
++#include <linux/skbuff.h>
++#include <linux/netdevice.h>
++#include <linux/etherdevice.h>
++#include <linux/rtnetlink.h>
++#include <linux/if_arp.h>
++#include <linux/netfilter.h>
++#include <linux/netfilter_ipv4.h>
++#if defined(CONFIG_IPV6) || defined(CONFIG_IPV6_MODULE)
++      #include <linux/netfilter_ipv6.h>
++#endif
++#include <linux/imq.h>
++#include <net/pkt_sched.h>
++#include <net/netfilter/nf_queue.h>
++
++static nf_hookfn imq_nf_hook;
++
++static struct nf_hook_ops imq_ingress_ipv4 = {
++      .hook           = imq_nf_hook,
++      .owner          = THIS_MODULE,
++      .pf             = PF_INET,
++      .hooknum        = NF_INET_PRE_ROUTING,
++#if defined(CONFIG_IMQ_BEHAVIOR_BA) || defined(CONFIG_IMQ_BEHAVIOR_BB)
++      .priority       = NF_IP_PRI_MANGLE + 1
++#else
++      .priority       = NF_IP_PRI_NAT_DST + 1
++#endif
++};
++
++static struct nf_hook_ops imq_egress_ipv4 = {
++      .hook           = imq_nf_hook,
++      .owner          = THIS_MODULE,
++      .pf             = PF_INET,
++      .hooknum        = NF_INET_POST_ROUTING,
++#if defined(CONFIG_IMQ_BEHAVIOR_AA) || defined(CONFIG_IMQ_BEHAVIOR_BA)
++      .priority       = NF_IP_PRI_LAST
++#else
++      .priority       = NF_IP_PRI_NAT_SRC - 1
++#endif
++};
++
++#if defined(CONFIG_IPV6) || defined(CONFIG_IPV6_MODULE)
++static struct nf_hook_ops imq_ingress_ipv6 = {
++      .hook           = imq_nf_hook,
++      .owner          = THIS_MODULE,
++      .pf             = PF_INET6,
++      .hooknum        = NF_INET_PRE_ROUTING,
++#if defined(CONFIG_IMQ_BEHAVIOR_BA) || defined(CONFIG_IMQ_BEHAVIOR_BB)
++      .priority       = NF_IP6_PRI_MANGLE + 1
++#else
++      .priority       = NF_IP6_PRI_NAT_DST + 1
++#endif
++};
++
++static struct nf_hook_ops imq_egress_ipv6 = {
++      .hook           = imq_nf_hook,
++      .owner          = THIS_MODULE,
++      .pf             = PF_INET6,
++      .hooknum        = NF_INET_POST_ROUTING,
++#if defined(CONFIG_IMQ_BEHAVIOR_AA) || defined(CONFIG_IMQ_BEHAVIOR_BA)
++      .priority       = NF_IP6_PRI_LAST
++#else
++      .priority       = NF_IP6_PRI_NAT_SRC - 1
++#endif
++};
++#endif
++
++#if defined(CONFIG_IMQ_NUM_DEVS)
++static unsigned int numdevs = CONFIG_IMQ_NUM_DEVS;
++#else
++static unsigned int numdevs = IMQ_MAX_DEVS;
++#endif
++
++static DEFINE_SPINLOCK(imq_nf_queue_lock);
++
++static struct net_device *imq_devs_cache[IMQ_MAX_DEVS];
++
++
++static struct net_device_stats *imq_get_stats(struct net_device *dev)
++{
++      return &dev->stats;
++}
++
++/* called for packets kfree'd in qdiscs at places other than enqueue */
++static void imq_skb_destructor(struct sk_buff *skb)
++{
++      struct nf_queue_entry *entry = skb->nf_queue_entry;
++
++      if (entry) {
++              nf_queue_entry_release_refs(entry);
++              kfree(entry);
++      }
++
++      skb_restore_cb(skb); /* kfree backup */
++}
++
++static void imq_nf_reinject(struct nf_queue_entry *entry, unsigned int verdict)
++{
++      int status;
++
++      if (!entry->next_outfn) {
++              spin_lock_bh(&imq_nf_queue_lock);
++              nf_reinject(entry, verdict);
++              spin_unlock_bh(&imq_nf_queue_lock);
++              return;
++      }
++
++      rcu_read_lock();
++      local_bh_disable();
++      status = entry->next_outfn(entry, entry->next_queuenum);
++      local_bh_enable();
++      if (status < 0) {
++              nf_queue_entry_release_refs(entry);
++              kfree_skb(entry->skb);
++              kfree(entry);
++      }
++
++      rcu_read_unlock();
++}
++
++static int imq_dev_xmit(struct sk_buff *skb, struct net_device *dev)
++{
++      dev->stats.tx_bytes += skb->len;
++      dev->stats.tx_packets++;
++
++      skb->imq_flags = 0;
++      skb->destructor = NULL;
++
++      skb_restore_cb(skb); /* restore skb->cb */
++
++      dev->trans_start = jiffies;
++      imq_nf_reinject(skb->nf_queue_entry, NF_ACCEPT);
++      return 0;
++}
++
++static int imq_nf_queue(struct nf_queue_entry *entry, unsigned queue_num)
++{
++      struct net_device *dev;
++      struct sk_buff *skb_orig, *skb, *skb_shared;
++      struct Qdisc *q;
++      struct netdev_queue *txq;
++      int users, index;
++      int retval = -EINVAL;
++
++      index = entry->skb->imq_flags & IMQ_F_IFMASK;
++      if (unlikely(index > numdevs - 1)) {
++              if (net_ratelimit())
++                      printk(KERN_WARNING
++                             "IMQ: invalid device specified, highest is %u\n",
++                             numdevs - 1);
++              retval = -EINVAL;
++              goto out;
++      }
++
++      /* check for imq device by index from cache */
++      dev = imq_devs_cache[index];
++      if (unlikely(!dev)) {
++              char buf[8];
++
++              /* get device by name and cache result */
++              snprintf(buf, sizeof(buf), "imq%d", index);
++              dev = dev_get_by_name(&init_net, buf);
++              if (!dev) {
++                      /* not found ?!*/
++                      BUG();
++                      retval = -ENODEV;
++                      goto out;
++              }
++
++              imq_devs_cache[index] = dev;
++              dev_put(dev);
++      }
++
++      if (unlikely(!(dev->flags & IFF_UP))) {
++              entry->skb->imq_flags = 0;
++              imq_nf_reinject(entry, NF_ACCEPT);
++              retval = 0;
++              goto out;
++      }
++      dev->last_rx = jiffies;
++
++      skb = entry->skb;
++      skb_orig = NULL;
++
++      /* skb has owner? => make clone */
++      if (unlikely(skb->destructor)) {
++              skb_orig = skb;
++              skb = skb_clone(skb, GFP_ATOMIC);
++              if (!skb) {
++                      retval = -ENOMEM;
++                      goto out;
++              }
++              entry->skb = skb;
++      }
++
++      skb->nf_queue_entry = entry;
++
++      dev->stats.rx_bytes += skb->len;
++      dev->stats.rx_packets++;
++
++      txq = dev_pick_tx(dev, skb);
++
++      q = rcu_dereference(txq->qdisc);
++      if (unlikely(!q->enqueue))
++              goto packet_not_eaten_by_imq_dev;
++
++      spin_lock_bh(qdisc_lock(q));
++
++      users = atomic_read(&skb->users);
++
++      skb_shared = skb_get(skb); /* increase reference count by one */
++      skb_save_cb(skb_shared); /* backup skb->cb, as qdisc layer will
++                                      overwrite it */
++      qdisc_enqueue_root(skb_shared, q); /* might kfree_skb */
++
++      if (likely(atomic_read(&skb_shared->users) == users + 1)) {
++              kfree_skb(skb_shared); /* decrease reference count by one */
++
++              skb->destructor = &imq_skb_destructor;
++
++              /* cloned? */
++              if (skb_orig)
++                      kfree_skb(skb_orig); /* free original */
++
++              spin_unlock_bh(qdisc_lock(q));
++
++              /* schedule qdisc dequeue */
++              __netif_schedule(q);
++
++              retval = 0;
++              goto out;
++      } else {
++              skb_restore_cb(skb_shared); /* restore skb->cb */
++              /* qdisc dropped packet and decreased skb reference count of
++               * skb, so we don't really want to and try refree as that would
++               * actually destroy the skb. */
++              spin_unlock_bh(qdisc_lock(q));
++              goto packet_not_eaten_by_imq_dev;
++      }
++
++packet_not_eaten_by_imq_dev:
++      /* cloned? restore original */
++      if (skb_orig) {
++              kfree_skb(skb);
++              entry->skb = skb_orig;
++      }
++      retval = -1;
++out:
++      return retval;
++}
++
++static struct nf_queue_handler nfqh = {
++      .name  = "imq",
++      .outfn = imq_nf_queue,
++};
++
++static unsigned int imq_nf_hook(unsigned int hook, struct sk_buff *pskb,
++                              const struct net_device *indev,
++                              const struct net_device *outdev,
++                              int (*okfn)(struct sk_buff *))
++{
++      if (pskb->imq_flags & IMQ_F_ENQUEUE)
++              return NF_QUEUE;
++
++      return NF_ACCEPT;
++}
++
++static int imq_close(struct net_device *dev)
++{
++      netif_stop_queue(dev);
++      return 0;
++}
++
++static int imq_open(struct net_device *dev)
++{
++      netif_start_queue(dev);
++      return 0;
++}
++
++static const struct net_device_ops imq_netdev_ops = {
++      .ndo_open               = imq_open,
++      .ndo_stop               = imq_close,
++      .ndo_start_xmit         = imq_dev_xmit,
++      .ndo_get_stats          = imq_get_stats,
++};
++
++static void imq_setup(struct net_device *dev)
++{
++      dev->netdev_ops         = &imq_netdev_ops;
++      dev->type               = ARPHRD_VOID;
++      dev->mtu                = 16000;
++      dev->tx_queue_len       = 11000;
++      dev->flags              = IFF_NOARP;
++      dev->features           = NETIF_F_SG | NETIF_F_FRAGLIST |
++                                NETIF_F_GSO | NETIF_F_HW_CSUM |
++                                NETIF_F_HIGHDMA;
++}
++
++static int imq_validate(struct nlattr *tb[], struct nlattr *data[])
++{
++      int ret = 0;
++
++      if (tb[IFLA_ADDRESS]) {
++              if (nla_len(tb[IFLA_ADDRESS]) != ETH_ALEN) {
++                      ret = -EINVAL;
++                      goto end;
++              }
++              if (!is_valid_ether_addr(nla_data(tb[IFLA_ADDRESS]))) {
++                      ret = -EADDRNOTAVAIL;
++                      goto end;
++              }
++      }
++      return 0;
++end:
++      printk(KERN_WARNING "IMQ: imq_validate failed (%d)\n", ret);
++      return ret;
++}
++
++static struct rtnl_link_ops imq_link_ops __read_mostly = {
++      .kind           = "imq",
++      .priv_size      = 0,
++      .setup          = imq_setup,
++      .validate       = imq_validate,
++};
++
++static int __init imq_init_hooks(void)
++{
++      int err;
++
++      nf_register_queue_imq_handler(&nfqh);
++
++      err = nf_register_hook(&imq_ingress_ipv4);
++      if (err)
++              goto err1;
++
++      err = nf_register_hook(&imq_egress_ipv4);
++      if (err)
++              goto err2;
++
++#if defined(CONFIG_IPV6) || defined(CONFIG_IPV6_MODULE)
++      err = nf_register_hook(&imq_ingress_ipv6);
++      if (err)
++              goto err3;
++
++      err = nf_register_hook(&imq_egress_ipv6);
++      if (err)
++              goto err4;
++#endif
++
++      return 0;
++
++#if defined(CONFIG_IPV6) || defined(CONFIG_IPV6_MODULE)
++err4:
++      nf_unregister_hook(&imq_ingress_ipv6);
++err3:
++      nf_unregister_hook(&imq_egress_ipv4);
++#endif
++err2:
++      nf_unregister_hook(&imq_ingress_ipv4);
++err1:
++      nf_unregister_queue_imq_handler();
++      return err;
++}
++
++static int __init imq_init_one(int index)
++{
++      struct net_device *dev;
++      int ret;
++
++      dev = alloc_netdev(0, "imq%d", imq_setup);
++      if (!dev)
++              return -ENOMEM;
++
++      ret = dev_alloc_name(dev, dev->name);
++      if (ret < 0)
++              goto fail;
++
++      dev->rtnl_link_ops = &imq_link_ops;
++      ret = register_netdevice(dev);
++      if (ret < 0)
++              goto fail;
++
++      return 0;
++fail:
++      free_netdev(dev);
++      return ret;
++}
++
++static int __init imq_init_devs(void)
++{
++      int err, i;
++
++      if (numdevs < 1 || numdevs > IMQ_MAX_DEVS) {
++              printk(KERN_ERR "IMQ: numdevs has to be betweed 1 and %u\n",
++                     IMQ_MAX_DEVS);
++              return -EINVAL;
++      }
++
++      rtnl_lock();
++      err = __rtnl_link_register(&imq_link_ops);
++
++      for (i = 0; i < numdevs && !err; i++)
++              err = imq_init_one(i);
++
++      if (err) {
++              __rtnl_link_unregister(&imq_link_ops);
++              memset(imq_devs_cache, 0, sizeof(imq_devs_cache));
++      }
++      rtnl_unlock();
++
++      return err;
++}
++
++static int __init imq_init_module(void)
++{
++      int err;
++
++#if defined(CONFIG_IMQ_NUM_DEVS)
++      BUILD_BUG_ON(CONFIG_IMQ_NUM_DEVS > 16);
++      BUILD_BUG_ON(CONFIG_IMQ_NUM_DEVS < 2);
++      BUILD_BUG_ON(CONFIG_IMQ_NUM_DEVS - 1 > IMQ_F_IFMASK);
++#endif
++
++      err = imq_init_devs();
++      if (err) {
++              printk(KERN_ERR "IMQ: Error trying imq_init_devs(net)\n");
++              return err;
++      }
++
++      err = imq_init_hooks();
++      if (err) {
++              printk(KERN_ERR "IMQ: Error trying imq_init_hooks()\n");
++              rtnl_link_unregister(&imq_link_ops);
++              memset(imq_devs_cache, 0, sizeof(imq_devs_cache));
++              return err;
++      }
++
++      printk(KERN_INFO "IMQ driver loaded successfully.\n");
++
++#if defined(CONFIG_IMQ_BEHAVIOR_BA) || defined(CONFIG_IMQ_BEHAVIOR_BB)
++      printk(KERN_INFO "\tHooking IMQ before NAT on PREROUTING.\n");
++#else
++      printk(KERN_INFO "\tHooking IMQ after NAT on PREROUTING.\n");
++#endif
++#if defined(CONFIG_IMQ_BEHAVIOR_AB) || defined(CONFIG_IMQ_BEHAVIOR_BB)
++      printk(KERN_INFO "\tHooking IMQ before NAT on POSTROUTING.\n");
++#else
++      printk(KERN_INFO "\tHooking IMQ after NAT on POSTROUTING.\n");
++#endif
++
++      return 0;
++}
++
++static void __exit imq_unhook(void)
++{
++#if defined(CONFIG_IPV6) || defined(CONFIG_IPV6_MODULE)
++      nf_unregister_hook(&imq_ingress_ipv6);
++      nf_unregister_hook(&imq_egress_ipv6);
++#endif
++      nf_unregister_hook(&imq_ingress_ipv4);
++      nf_unregister_hook(&imq_egress_ipv4);
++
++      nf_unregister_queue_imq_handler();
++}
++
++static void __exit imq_cleanup_devs(void)
++{
++      rtnl_link_unregister(&imq_link_ops);
++      memset(imq_devs_cache, 0, sizeof(imq_devs_cache));
++}
++
++static void __exit imq_exit_module(void)
++{
++      imq_unhook();
++      imq_cleanup_devs();
++      printk(KERN_INFO "IMQ driver unloaded successfully.\n");
++}
++
++module_init(imq_init_module);
++module_exit(imq_exit_module);
++
++module_param(numdevs, int, 0);
++MODULE_PARM_DESC(numdevs, "number of IMQ devices (how many imq* devices will "
++                      "be created)");
++MODULE_AUTHOR("http://www.linuximq.net");
++MODULE_DESCRIPTION("Pseudo-driver for the intermediate queue device. See "
++                      "http://www.linuximq.net/ for more information.");
++MODULE_LICENSE("GPL");
++MODULE_ALIAS_RTNL_LINK("imq");
++
+--- a/drivers/net/Kconfig
++++ b/drivers/net/Kconfig
+@@ -109,6 +109,129 @@ config EQUALIZER
+         To compile this driver as a module, choose M here: the module
+         will be called eql.  If unsure, say N.
+ 
++config IMQ
++      tristate "IMQ (intermediate queueing device) support"
++      depends on NETDEVICES && NETFILTER
++      ---help---
++        The IMQ device(s) is used as placeholder for QoS queueing
++        disciplines. Every packet entering/leaving the IP stack can be
++        directed through the IMQ device where it's enqueued/dequeued to the
++        attached qdisc. This allows you to treat network devices as classes
++        and distribute bandwidth among them. Iptables is used to specify
++        through which IMQ device, if any, packets travel.
++
++        More information at: http://www.linuximq.net/
++
++        To compile this driver as a module, choose M here: the module
++        will be called imq.  If unsure, say N.
++
++choice
++      prompt "IMQ behavior (PRE/POSTROUTING)"
++      depends on IMQ
++      default IMQ_BEHAVIOR_AB
++      help
++
++              This settings defines how IMQ behaves in respect to its
++              hooking in PREROUTING and POSTROUTING.
++
++              IMQ can work in any of the following ways:
++
++                  PREROUTING   |      POSTROUTING
++              -----------------|-------------------
++              #1  After NAT    |      After NAT
++              #2  After NAT    |      Before NAT
++              #3  Before NAT   |      After NAT
++              #4  Before NAT   |      Before NAT
++
++              The default behavior is to hook before NAT on PREROUTING
++              and after NAT on POSTROUTING (#3).
++
++              This settings are specially usefull when trying to use IMQ
++              to shape NATed clients.
++
++              More information can be found at: www.linuximq.net
++
++              If not sure leave the default settings alone.
++
++config IMQ_BEHAVIOR_AA
++      bool "IMQ AA"
++      help
++              This settings defines how IMQ behaves in respect to its
++              hooking in PREROUTING and POSTROUTING.
++
++              Choosing this option will make IMQ hook like this:
++
++              PREROUTING:   After NAT
++              POSTROUTING:  After NAT
++
++              More information can be found at: www.linuximq.net
++
++              If not sure leave the default settings alone.
++
++config IMQ_BEHAVIOR_AB
++      bool "IMQ AB"
++      help
++              This settings defines how IMQ behaves in respect to its
++              hooking in PREROUTING and POSTROUTING.
++
++              Choosing this option will make IMQ hook like this:
++
++              PREROUTING:   After NAT
++              POSTROUTING:  Before NAT
++
++              More information can be found at: www.linuximq.net
++
++              If not sure leave the default settings alone.
++
++config IMQ_BEHAVIOR_BA
++      bool "IMQ BA"
++      help
++              This settings defines how IMQ behaves in respect to its
++              hooking in PREROUTING and POSTROUTING.
++
++              Choosing this option will make IMQ hook like this:
++
++              PREROUTING:   Before NAT
++              POSTROUTING:  After NAT
++
++              More information can be found at: www.linuximq.net
++
++              If not sure leave the default settings alone.
++
++config IMQ_BEHAVIOR_BB
++      bool "IMQ BB"
++      help
++              This settings defines how IMQ behaves in respect to its
++              hooking in PREROUTING and POSTROUTING.
++
++              Choosing this option will make IMQ hook like this:
++
++              PREROUTING:   Before NAT
++              POSTROUTING:  Before NAT
++
++              More information can be found at: www.linuximq.net
++
++              If not sure leave the default settings alone.
++
++endchoice
++
++config IMQ_NUM_DEVS
++
++      int "Number of IMQ devices"
++      range 2 16
++      depends on IMQ
++      default "16"
++      help
++
++              This settings defines how many IMQ devices will be
++              created.
++
++              The default value is 16.
++
++              More information can be found at: www.linuximq.net
++
++              If not sure leave the default settings alone.
++
+ config TUN
+       tristate "Universal TUN/TAP device driver support"
+       select CRC32
+--- a/drivers/net/Makefile
++++ b/drivers/net/Makefile
+@@ -165,6 +165,7 @@ obj-$(CONFIG_SLHC) += slhc.o
+ obj-$(CONFIG_XEN_NETDEV_FRONTEND) += xen-netfront.o
+ 
+ obj-$(CONFIG_DUMMY) += dummy.o
++obj-$(CONFIG_IMQ) += imq.o
+ obj-$(CONFIG_IFB) += ifb.o
+ obj-$(CONFIG_MACVLAN) += macvlan.o
+ obj-$(CONFIG_DE600) += de600.o
+--- /dev/null
++++ b/include/linux/imq.h
+@@ -0,0 +1,13 @@
++#ifndef _IMQ_H
++#define _IMQ_H
++
++/* IFMASK (16 device indexes, 0 to 15) and flag(s) fit in 5 bits */
++#define IMQ_F_BITS    5
++
++#define IMQ_F_IFMASK  0x0f
++#define IMQ_F_ENQUEUE 0x10
++
++#define IMQ_MAX_DEVS  (IMQ_F_IFMASK + 1)
++
++#endif /* _IMQ_H */
++
+--- /dev/null
++++ b/include/linux/netfilter_ipv4/ipt_IMQ.h
+@@ -0,0 +1,10 @@
++#ifndef _IPT_IMQ_H
++#define _IPT_IMQ_H
++
++/* Backwards compatibility for old userspace */
++#include <linux/netfilter/xt_IMQ.h>
++
++#define ipt_imq_info xt_imq_info
++
++#endif /* _IPT_IMQ_H */
++
+--- /dev/null
++++ b/include/linux/netfilter_ipv6/ip6t_IMQ.h
+@@ -0,0 +1,10 @@
++#ifndef _IP6T_IMQ_H
++#define _IP6T_IMQ_H
++
++/* Backwards compatibility for old userspace */
++#include <linux/netfilter/xt_IMQ.h>
++
++#define ip6t_imq_info xt_imq_info
++
++#endif /* _IP6T_IMQ_H */
++
+--- a/include/linux/skbuff.h
++++ b/include/linux/skbuff.h
+@@ -29,6 +29,9 @@
+ #include <linux/rcupdate.h>
+ #include <linux/dmaengine.h>
+ #include <linux/hrtimer.h>
++#if defined(CONFIG_IMQ) || defined(CONFIG_IMQ_MODULE)
++#include <linux/imq.h>
++#endif
+ 
+ /* Don't change this without changing skb_csum_unnecessary! */
+ #define CHECKSUM_NONE 0
+@@ -330,6 +333,9 @@ struct sk_buff {
+        * first. This is owned by whoever has the skb queued ATM.
+        */
+       char                    cb[48];
++#if defined(CONFIG_IMQ) || defined(CONFIG_IMQ_MODULE)
++      void                    *cb_next;
++#endif
+ 
+       unsigned int            len,
+                               data_len;
+@@ -362,6 +368,9 @@ struct sk_buff {
+       struct nf_conntrack     *nfct;
+       struct sk_buff          *nfct_reasm;
+ #endif
++#if defined(CONFIG_IMQ) || defined(CONFIG_IMQ_MODULE)
++      struct nf_queue_entry   *nf_queue_entry;
++#endif
+ #ifdef CONFIG_BRIDGE_NETFILTER
+       struct nf_bridge_info   *nf_bridge;
+ #endif
+@@ -382,6 +391,9 @@ struct sk_buff {
+       kmemcheck_bitfield_end(flags2);
+ 
+       /* 0/14 bit hole */
++#if defined(CONFIG_IMQ) || defined(CONFIG_IMQ_MODULE)
++      __u8                    imq_flags:IMQ_F_BITS;
++#endif
+ 
+ #ifdef CONFIG_NET_DMA
+       dma_cookie_t            dma_cookie;
+@@ -437,6 +449,12 @@ static inline struct rtable *skb_rtable(
+       return (struct rtable *)skb_dst(skb);
+ }
+ 
++
++#if defined(CONFIG_IMQ) || defined(CONFIG_IMQ_MODULE)
++extern int skb_save_cb(struct sk_buff *skb);
++extern int skb_restore_cb(struct sk_buff *skb);
++#endif
++
+ extern void kfree_skb(struct sk_buff *skb);
+ extern void consume_skb(struct sk_buff *skb);
+ extern void          __kfree_skb(struct sk_buff *skb);
+@@ -1970,6 +1988,10 @@ static inline void __nf_copy(struct sk_b
+       dst->nfct_reasm = src->nfct_reasm;
+       nf_conntrack_get_reasm(src->nfct_reasm);
+ #endif
++#if defined(CONFIG_IMQ) || defined(CONFIG_IMQ_MODULE)
++      dst->imq_flags = src->imq_flags;
++      dst->nf_queue_entry = src->nf_queue_entry;
++#endif
+ #ifdef CONFIG_BRIDGE_NETFILTER
+       dst->nf_bridge  = src->nf_bridge;
+       nf_bridge_get(src->nf_bridge);
+--- a/net/core/dev.c
++++ b/net/core/dev.c
+@@ -96,6 +96,9 @@
+ #include <net/net_namespace.h>
+ #include <net/sock.h>
+ #include <linux/rtnetlink.h>
++#if defined(CONFIG_IMQ) || defined(CONFIG_IMQ_MODULE)
++#include <linux/imq.h>
++#endif
+ #include <linux/proc_fs.h>
+ #include <linux/seq_file.h>
+ #include <linux/stat.h>
+@@ -1703,7 +1706,11 @@ int dev_hard_start_xmit(struct sk_buff *
+       int rc;
+ 
+       if (likely(!skb->next)) {
+-              if (!list_empty(&ptype_all))
++              if (!list_empty(&ptype_all)
++#if defined(CONFIG_IMQ) || defined(CONFIG_IMQ_MODULE)
++                  && !(skb->imq_flags & IMQ_F_ENQUEUE)
++#endif
++                  )
+                       dev_queue_xmit_nit(skb, dev);
+ 
+               if (netif_needs_gso(dev, skb)) {
+@@ -1788,8 +1795,7 @@ u16 skb_tx_hash(const struct net_device 
+ }
+ EXPORT_SYMBOL(skb_tx_hash);
+ 
+-static struct netdev_queue *dev_pick_tx(struct net_device *dev,
+-                                      struct sk_buff *skb)
++struct netdev_queue *dev_pick_tx(struct net_device *dev, struct sk_buff *skb)
+ {
+       const struct net_device_ops *ops = dev->netdev_ops;
+       u16 queue_index = 0;
+@@ -1802,6 +1808,7 @@ static struct netdev_queue *dev_pick_tx(
+       skb_set_queue_mapping(skb, queue_index);
+       return netdev_get_tx_queue(dev, queue_index);
+ }
++EXPORT_SYMBOL(dev_pick_tx);
+ 
+ static inline int __dev_xmit_skb(struct sk_buff *skb, struct Qdisc *q,
+                                struct net_device *dev,
+--- a/include/linux/netdevice.h
++++ b/include/linux/netdevice.h
+@@ -1114,6 +1114,7 @@ extern int               dev_alloc_name(struct net_de
+ extern int            dev_open(struct net_device *dev);
+ extern int            dev_close(struct net_device *dev);
+ extern void           dev_disable_lro(struct net_device *dev);
++extern struct netdev_queue *dev_pick_tx(struct net_device *dev, struct sk_buff *skb);
+ extern int            dev_queue_xmit(struct sk_buff *skb);
+ extern int            register_netdevice(struct net_device *dev);
+ extern void           unregister_netdevice(struct net_device *dev);
+--- /dev/null
++++ b/include/linux/netfilter/xt_IMQ.h
+@@ -0,0 +1,9 @@
++#ifndef _XT_IMQ_H
++#define _XT_IMQ_H
++
++struct xt_imq_info {
++      unsigned int todev;     /* target imq device */
++};
++
++#endif /* _XT_IMQ_H */
++
+--- a/include/net/netfilter/nf_queue.h
++++ b/include/net/netfilter/nf_queue.h
+@@ -13,6 +13,12 @@ struct nf_queue_entry {
+       struct net_device       *indev;
+       struct net_device       *outdev;
+       int                     (*okfn)(struct sk_buff *);
++
++#if defined(CONFIG_IMQ) || defined(CONFIG_IMQ_MODULE)
++      int                     (*next_outfn)(struct nf_queue_entry *entry,
++                                            unsigned int queuenum);
++      unsigned int            next_queuenum;
++#endif
+ };
+ 
+ #define nf_queue_entry_reroute(x) ((void *)x + sizeof(struct nf_queue_entry))
+@@ -30,5 +36,11 @@ extern int nf_unregister_queue_handler(u
+                                      const struct nf_queue_handler *qh);
+ extern void nf_unregister_queue_handlers(const struct nf_queue_handler *qh);
+ extern void nf_reinject(struct nf_queue_entry *entry, unsigned int verdict);
++extern void nf_queue_entry_release_refs(struct nf_queue_entry *entry);
++
++#if defined(CONFIG_IMQ) || defined(CONFIG_IMQ_MODULE)
++extern void nf_register_queue_imq_handler(const struct nf_queue_handler *qh);
++extern void nf_unregister_queue_imq_handler(void);
++#endif
+ 
+ #endif /* _NF_QUEUE_H */
+--- a/net/core/skbuff.c
++++ b/net/core/skbuff.c
+@@ -72,6 +72,9 @@
+ 
+ static struct kmem_cache *skbuff_head_cache __read_mostly;
+ static struct kmem_cache *skbuff_fclone_cache __read_mostly;
++#if defined(CONFIG_IMQ) || defined(CONFIG_IMQ_MODULE)
++static struct kmem_cache *skbuff_cb_store_cache __read_mostly;
++#endif
+ 
+ static void sock_pipe_buf_release(struct pipe_inode_info *pipe,
+                                 struct pipe_buffer *buf)
+@@ -91,6 +94,80 @@ static int sock_pipe_buf_steal(struct pi
+       return 1;
+ }
+ 
++#if defined(CONFIG_IMQ) || defined(CONFIG_IMQ_MODULE)
++/* Control buffer save/restore for IMQ devices */
++struct skb_cb_table {
++      void                    *cb_next;
++      atomic_t                refcnt;
++      char                    cb[48];
++};
++
++static DEFINE_SPINLOCK(skb_cb_store_lock);
++
++int skb_save_cb(struct sk_buff *skb)
++{
++      struct skb_cb_table *next;
++
++      next = kmem_cache_alloc(skbuff_cb_store_cache, GFP_ATOMIC);
++      if (!next)
++              return -ENOMEM;
++
++      BUILD_BUG_ON(sizeof(skb->cb) != sizeof(next->cb));
++
++      memcpy(next->cb, skb->cb, sizeof(skb->cb));
++      next->cb_next = skb->cb_next;
++
++      atomic_set(&next->refcnt, 1);
++
++      skb->cb_next = next;
++      return 0;
++}
++EXPORT_SYMBOL(skb_save_cb);
++
++int skb_restore_cb(struct sk_buff *skb)
++{
++      struct skb_cb_table *next;
++
++      if (!skb->cb_next)
++              return 0;
++
++      next = skb->cb_next;
++
++      BUILD_BUG_ON(sizeof(skb->cb) != sizeof(next->cb));
++
++      memcpy(skb->cb, next->cb, sizeof(skb->cb));
++      skb->cb_next = next->cb_next;
++
++      spin_lock(&skb_cb_store_lock);
++
++      if (atomic_dec_and_test(&next->refcnt)) {
++              kmem_cache_free(skbuff_cb_store_cache, next);
++      }
++
++      spin_unlock(&skb_cb_store_lock);
++
++      return 0;
++}
++EXPORT_SYMBOL(skb_restore_cb);
++
++static void skb_copy_stored_cb(struct sk_buff *new, struct sk_buff *old)
++{
++      struct skb_cb_table *next;
++
++      if (!old->cb_next) {
++              new->cb_next = 0;
++              return;
++      }
++
++      spin_lock(&skb_cb_store_lock);
++
++      next = old->cb_next;
++      atomic_inc(&next->refcnt);
++      new->cb_next = next;
++
++      spin_unlock(&skb_cb_store_lock);
++}
++#endif
+ 
+ /* Pipe buffer operations for a socket. */
+ static struct pipe_buf_operations sock_pipe_buf_ops = {
+@@ -398,6 +475,15 @@ static void skb_release_head_state(struc
+               WARN_ON(in_irq());
+               skb->destructor(skb);
+       }
++#if defined(CONFIG_IMQ) || defined(CONFIG_IMQ_MODULE)
++      /* This should not happen. When it does, avoid memleak by restoring
++      the chain of cb-backups. */
++      while(skb->cb_next != NULL) {
++              printk(KERN_WARNING "kfree_skb: skb->cb_next: %08x\n",
++                      skb->cb_next);
++              skb_restore_cb(skb);
++      }
++#endif
+ #if defined(CONFIG_NF_CONNTRACK) || defined(CONFIG_NF_CONNTRACK_MODULE)
+       nf_conntrack_put(skb->nfct);
+       nf_conntrack_put_reasm(skb->nfct_reasm);
+@@ -535,6 +621,9 @@ static void __copy_skb_header(struct sk_
+       new->sp                 = secpath_get(old->sp);
+ #endif
+       memcpy(new->cb, old->cb, sizeof(old->cb));
++#if defined(CONFIG_IMQ) || defined(CONFIG_IMQ_MODULE)
++   skb_copy_stored_cb(new, old);
++#endif
+       new->csum               = old->csum;
+       new->local_df           = old->local_df;
+       new->pkt_type           = old->pkt_type;
+@@ -2775,6 +2864,13 @@ void __init skb_init(void)
+                                               0,
+                                               SLAB_HWCACHE_ALIGN|SLAB_PANIC,
+                                               NULL);
++#if defined(CONFIG_IMQ) || defined(CONFIG_IMQ_MODULE)
++      skbuff_cb_store_cache = kmem_cache_create("skbuff_cb_store_cache",
++                                                sizeof(struct skb_cb_table),
++                                                0,
++                                                SLAB_HWCACHE_ALIGN|SLAB_PANIC,
++                                                NULL);
++#endif
+ }
+ 
+ /**
+--- a/net/netfilter/Kconfig
++++ b/net/netfilter/Kconfig
+@@ -396,6 +396,18 @@ config NETFILTER_XT_TARGET_LED
+         For more information on the LEDs available on your system, see
+         Documentation/leds-class.txt
+ 
++config NETFILTER_XT_TARGET_IMQ
++        tristate '"IMQ" target support'
++      depends on NETFILTER_XTABLES
++      depends on IP_NF_MANGLE || IP6_NF_MANGLE
++      select IMQ
++      default m if NETFILTER_ADVANCED=n
++        help
++          This option adds a `IMQ' target which is used to specify if and
++          to which imq device packets should get enqueued/dequeued.
++
++          To compile it as a module, choose M here.  If unsure, say N.
++
+ config NETFILTER_XT_TARGET_MARK
+       tristate '"MARK" target support'
+       default m if NETFILTER_ADVANCED=n
+--- a/net/netfilter/Makefile
++++ b/net/netfilter/Makefile
+@@ -46,6 +46,7 @@ obj-$(CONFIG_NETFILTER_XT_TARGET_CONNMAR
+ obj-$(CONFIG_NETFILTER_XT_TARGET_CONNSECMARK) += xt_CONNSECMARK.o
+ obj-$(CONFIG_NETFILTER_XT_TARGET_DSCP) += xt_DSCP.o
+ obj-$(CONFIG_NETFILTER_XT_TARGET_HL) += xt_HL.o
++obj-$(CONFIG_NETFILTER_XT_TARGET_IMQ) += xt_IMQ.o
+ obj-$(CONFIG_NETFILTER_XT_TARGET_LED) += xt_LED.o
+ obj-$(CONFIG_NETFILTER_XT_TARGET_MARK) += xt_MARK.o
+ obj-$(CONFIG_NETFILTER_XT_TARGET_NFLOG) += xt_NFLOG.o
+--- a/net/netfilter/nf_queue.c
++++ b/net/netfilter/nf_queue.c
+@@ -20,6 +20,26 @@ static const struct nf_queue_handler *qu
+ 
+ static DEFINE_MUTEX(queue_handler_mutex);
+ 
++#if defined(CONFIG_IMQ) || defined(CONFIG_IMQ_MODULE)
++static const struct nf_queue_handler *queue_imq_handler;
++
++void nf_register_queue_imq_handler(const struct nf_queue_handler *qh)
++{
++      mutex_lock(&queue_handler_mutex);
++      rcu_assign_pointer(queue_imq_handler, qh);
++      mutex_unlock(&queue_handler_mutex);
++}
++EXPORT_SYMBOL(nf_register_queue_imq_handler);
++
++void nf_unregister_queue_imq_handler(void)
++{
++      mutex_lock(&queue_handler_mutex);
++      rcu_assign_pointer(queue_imq_handler, NULL);
++      mutex_unlock(&queue_handler_mutex);
++}
++EXPORT_SYMBOL(nf_unregister_queue_imq_handler);
++#endif
++
+ /* return EBUSY when somebody else is registered, return EEXIST if the
+  * same handler is registered, return 0 in case of success. */
+ int nf_register_queue_handler(u_int8_t pf, const struct nf_queue_handler *qh)
+@@ -80,7 +100,7 @@ void nf_unregister_queue_handlers(const 
+ }
+ EXPORT_SYMBOL_GPL(nf_unregister_queue_handlers);
+ 
+-static void nf_queue_entry_release_refs(struct nf_queue_entry *entry)
++void nf_queue_entry_release_refs(struct nf_queue_entry *entry)
+ {
+       /* Release those devices we held, or Alexey will kill me. */
+       if (entry->indev)
+@@ -100,6 +120,7 @@ static void nf_queue_entry_release_refs(
+       /* Drop reference to owner of hook which queued us. */
+       module_put(entry->elem->owner);
+ }
++EXPORT_SYMBOL_GPL(nf_queue_entry_release_refs);
+ 
+ /*
+  * Any packet that leaves via this function must come back
+@@ -121,12 +142,26 @@ static int __nf_queue(struct sk_buff *sk
+ #endif
+       const struct nf_afinfo *afinfo;
+       const struct nf_queue_handler *qh;
++#if defined(CONFIG_IMQ) || defined(CONFIG_IMQ_MODULE)
++      const struct nf_queue_handler *qih = NULL;
++#endif
+ 
+       /* QUEUE == DROP if noone is waiting, to be safe. */
+       rcu_read_lock();
+ 
+       qh = rcu_dereference(queue_handler[pf]);
++#if defined(CONFIG_IMQ) || defined(CONFIG_IMQ_MODULE)
++#if defined(CONFIG_IPV6) || defined(CONFIG_IPV6_MODULE)
++      if (pf == PF_INET || pf == PF_INET6)
++#else
++      if (pf == PF_INET)
++#endif
++              qih = rcu_dereference(queue_imq_handler);
++
++      if (!qh && !qih)
++#else /* !IMQ */
+       if (!qh)
++#endif
+               goto err_unlock;
+ 
+       afinfo = nf_get_afinfo(pf);
+@@ -145,6 +180,10 @@ static int __nf_queue(struct sk_buff *sk
+               .indev  = indev,
+               .outdev = outdev,
+               .okfn   = okfn,
++#if defined(CONFIG_IMQ) || defined(CONFIG_IMQ_MODULE)
++              .next_outfn = qh ? qh->outfn : NULL,
++              .next_queuenum = queuenum,
++#endif
+       };
+ 
+       /* If it's going away, ignore hook. */
+@@ -170,8 +209,19 @@ static int __nf_queue(struct sk_buff *sk
+       }
+ #endif
+       afinfo->saveroute(skb, entry);
++
++#if defined(CONFIG_IMQ) || defined(CONFIG_IMQ_MODULE)
++      if (qih) {
++              status = qih->outfn(entry, queuenum);
++              goto imq_skip_queue;
++      }
++#endif
++
+       status = qh->outfn(entry, queuenum);
+ 
++#if defined(CONFIG_IMQ) || defined(CONFIG_IMQ_MODULE)
++imq_skip_queue:
++#endif
+       rcu_read_unlock();
+ 
+       if (status < 0) {
+--- /dev/null
++++ b/net/netfilter/xt_IMQ.c
+@@ -0,0 +1,73 @@
++/*
++ * This target marks packets to be enqueued to an imq device
++ */
++#include <linux/module.h>
++#include <linux/skbuff.h>
++#include <linux/netfilter/x_tables.h>
++#include <linux/netfilter/xt_IMQ.h>
++#include <linux/imq.h>
++
++static unsigned int imq_target(struct sk_buff *pskb,
++                              const struct xt_target_param *par)
++{
++      const struct xt_imq_info *mr = par->targinfo;
++
++      pskb->imq_flags = (mr->todev & IMQ_F_IFMASK) | IMQ_F_ENQUEUE;
++
++      return XT_CONTINUE;
++}
++
++static bool imq_checkentry(const struct xt_tgchk_param *par)
++{
++      struct xt_imq_info *mr = par->targinfo;
++
++      if (mr->todev > IMQ_MAX_DEVS - 1) {
++              printk(KERN_WARNING
++                     "IMQ: invalid device specified, highest is %u\n",
++                     IMQ_MAX_DEVS - 1);
++              return 0;
++      }
++
++      return 1;
++}
++
++static struct xt_target xt_imq_reg[] __read_mostly = {
++      {
++              .name           = "IMQ",
++              .family         = AF_INET,
++              .checkentry     = imq_checkentry,
++              .target         = imq_target,
++              .targetsize     = sizeof(struct xt_imq_info),
++              .table          = "mangle",
++              .me             = THIS_MODULE
++      },
++      {
++              .name           = "IMQ",
++              .family         = AF_INET6,
++              .checkentry     = imq_checkentry,
++              .target         = imq_target,
++              .targetsize     = sizeof(struct xt_imq_info),
++              .table          = "mangle",
++              .me             = THIS_MODULE
++      },
++};
++
++static int __init imq_init(void)
++{
++      return xt_register_targets(xt_imq_reg, ARRAY_SIZE(xt_imq_reg));
++}
++
++static void __exit imq_fini(void)
++{
++      xt_unregister_targets(xt_imq_reg, ARRAY_SIZE(xt_imq_reg));
++}
++
++module_init(imq_init);
++module_exit(imq_fini);
++
++MODULE_AUTHOR("http://www.linuximq.net");
++MODULE_DESCRIPTION("Pseudo-driver for the intermediate queue device. See http://www.linuximq.net/ for more information.");
++MODULE_LICENSE("GPL");
++MODULE_ALIAS("ipt_IMQ");
++MODULE_ALIAS("ip6t_IMQ");
++

diff --git a/target/linux/generic-2.6/patches-2.6.32/180-netfilter_depends.patch b/target/linux/generic-2.6/patches-2.6.32/180-netfilter_depends.patch
new file mode 100644 (file)
index 0000000..fc00d15
--- /dev/null
+++ b/target/linux/generic-2.6/patches-2.6.32/180-netfilter_depends.patch
@@ -0,0 +1,18 @@
+--- a/net/netfilter/Kconfig
++++ b/net/netfilter/Kconfig
+@@ -160,7 +160,6 @@ 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
+@@ -505,7 +504,6 @@ 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-2.6/patches-2.6.32/190-netfilter_rtsp.patch b/target/linux/generic-2.6/patches-2.6.32/190-netfilter_rtsp.patch
new file mode 100644 (file)
index 0000000..29e8208
--- /dev/null
+++ b/target/linux/generic-2.6/patches-2.6.32/190-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 <tmarshall at real.com>
++ * 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 <linux/ctype.h>
++#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 <linux/ctype.h>
++
++/*
++ * 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
+@@ -267,6 +267,16 @@ 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
+@@ -33,6 +33,7 @@ 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
+@@ -257,6 +257,11 @@ 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 <tmarshall at real.com>
++ * 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_PORTS>
++ *                              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 <laforge at netfilter.org>
++ *    - port to 2.6
++ *    - update to recent post-2.6.11 api changes
++ * 2006-09-14: Steven Van Acker <deepstar at singularity.be>
++ *      - removed calls to NAT code from conntrack helper: NAT no longer needed to use rtsp-conntrack
++ * 2007-04-18: Michael Guntsche <mike at it-loops.com>
++ *                    - Port to new NF API
++ */
++
++#include <linux/module.h>
++#include <linux/netfilter.h>
++#include <linux/ip.h>
++#include <linux/inet.h>
++#include <net/tcp.h>
++
++#include <net/netfilter/nf_conntrack.h>
++#include <net/netfilter/nf_conntrack_expect.h>
++#include <net/netfilter/nf_conntrack_helper.h>
++#include <linux/netfilter/nf_conntrack_rtsp.h>
++
++#define NF_NEED_STRNCASECMP
++#define NF_NEED_STRTOU16
++#define NF_NEED_STRTOU32
++#define NF_NEED_NEXTLINE
++#include <linux/netfilter_helpers.h>
++#define NF_NEED_MIME_NEXTLINE
++#include <linux/netfilter_mime.h>
++
++#include <linux/ctype.h>
++#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 <tmarshall at real.com>");
++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 <tmarshall at real.com>
++ * 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<MAX_PORTS>
++ *                           stunaddr=<address>
++ *                           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 <linux/module.h>
++#include <net/tcp.h>
++#include <net/netfilter/nf_nat_helper.h>
++#include <net/netfilter/nf_nat_rule.h>
++#include <linux/netfilter/nf_conntrack_rtsp.h>
++#include <net/netfilter/nf_conntrack_expect.h>
++
++#include <linux/inet.h>
++#include <linux/ctype.h>
++#define NF_NEED_STRNCASECMP
++#define NF_NEED_STRTOU16
++#include <linux/netfilter_helpers.h>
++#define NF_NEED_MIME_NEXTLINE
++#include <linux/netfilter_mime.h>
++
++#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 <tmarshall at real.com>");
++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=<spec>"
++ *   - 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", NIPQUAD(extip))
++                       : sprintf(szextaddr, "%u.%u.%u.%u", NIPQUAD(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",
++           NIPQUAD(newsrcip), NIPQUAD(newdstip), NIPQUAD(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-2.6/patches-2.6.32/200-sched_esfq.patch b/target/linux/generic-2.6/patches-2.6.32/200-sched_esfq.patch
new file mode 100644 (file)
index 0000000..fb28e90
--- /dev/null
+++ b/target/linux/generic-2.6/patches-2.6.32/200-sched_esfq.patch
@@ -0,0 +1,793 @@
+--- a/include/linux/pkt_sched.h
++++ b/include/linux/pkt_sched.h
+@@ -182,8 +182,37 @@ 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
+@@ -137,6 +137,37 @@ 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 <file:net/sched/sch_esfq.c> 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
+@@ -24,6 +24,7 @@ obj-$(CONFIG_NET_SCH_GRED)   += sch_gred.o
+ obj-$(CONFIG_NET_SCH_INGRESS) += sch_ingress.o 
+ obj-$(CONFIG_NET_SCH_DSMARK)  += sch_dsmark.o
+ obj-$(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 +1,700 @@
++/*
++ * 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, <kuznet@ms2.inr.ac.ru>
++ *
++ * Changes:   Alexander Atanasov, <alex@ssi.bg>
++ *            Added dynamic depth,limit,divisor,hash_kind options.
++ *            Added dst and src hashes.
++ *
++ *            Alexander Clouter, <alex@digriz.org.uk>
++ *            Ported ESFQ to Linux 2.6.
++ *
++ *            Corey Hickey, <bugfood-c@fatooh.org>
++ *            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 <linux/module.h>
++#include <asm/uaccess.h>
++#include <asm/system.h>
++#include <linux/bitops.h>
++#include <linux/types.h>
++#include <linux/kernel.h>
++#include <linux/jiffies.h>
++#include <linux/string.h>
++#include <linux/mm.h>
++#include <linux/socket.h>
++#include <linux/sockios.h>
++#include <linux/in.h>
++#include <linux/errno.h>
++#include <linux/interrupt.h>
++#include <linux/if_ether.h>
++#include <linux/inet.h>
++#include <linux/netdevice.h>
++#include <linux/etherdevice.h>
++#include <linux/notifier.h>
++#include <linux/init.h>
++#include <net/ip.h>
++#include <net/netlink.h>
++#include <linux/ipv6.h>
++#include <net/route.h>
++#include <linux/skbuff.h>
++#include <net/sock.h>
++#include <net/pkt_sched.h>
++#include <linux/jhash.h>
++#include <net/netfilter/nf_conntrack.h>
++
++/*    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; i<q->depth; 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; i<q->depth; 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-2.6/patches-2.6.32/201-jhash3.patch b/target/linux/generic-2.6/patches-2.6.32/201-jhash3.patch
new file mode 100644 (file)
index 0000000..0218fa1
--- /dev/null
+++ b/target/linux/generic-2.6/patches-2.6.32/201-jhash3.patch
@@ -0,0 +1,227 @@
+--- a/include/linux/jhash.h
++++ b/include/linux/jhash.h
+@@ -3,80 +3,95 @@
+ 
+ /* jhash.h: Jenkins hash support.
+  *
+- * Copyright (C) 1996 Bob Jenkins (bob_jenkins@burtleburtle.net)
++ * Copyright (C) 2006. Bob Jenkins (bob_jenkins@burtleburtle.net)
+  *
+  * http://burtleburtle.net/bob/hash/
+  *
+  * These are the credits from Bob's sources:
+  *
+- * lookup2.c, by Bob Jenkins, December 1996, Public Domain.
+- * hash(), hash2(), hash3, and mix() are externally useful functions.
+- * Routines to test the hash are included if SELF_TEST is defined.
+- * You can use this free for any purpose.  It has no warranty.
++ * lookup3.c, by Bob Jenkins, May 2006, Public Domain.
+  *
+- * Copyright (C) 2003 David S. Miller (davem@redhat.com)
++ * These are functions for producing 32-bit hashes for hash table lookup.
++ * hashword(), hashlittle(), hashlittle2(), hashbig(), mix(), and final() 
++ * are externally useful functions.  Routines to test the hash are included 
++ * if SELF_TEST is defined.  You can use this free for any purpose.  It's in
++ * the public domain.  It has no warranty.
++ *
++ * Copyright (C) 2009 Jozsef Kadlecsik (kadlec@blackhole.kfki.hu)
+  *
+  * I've modified Bob's hash to be useful in the Linux kernel, and
+- * any bugs present are surely my fault.  -DaveM
++ * any bugs present are my fault.  Jozsef
+  */
+ 
+-/* NOTE: Arguments are modified. */
+-#define __jhash_mix(a, b, c) \
++#define __rot(x,k) (((x)<<(k)) | ((x)>>(32-(k))))
++
++/* __jhash_mix - mix 3 32-bit values reversibly. */
++#define __jhash_mix(a,b,c) \
++{ \
++  a -= c;  a ^= __rot(c, 4);  c += b; \
++  b -= a;  b ^= __rot(a, 6);  a += c; \
++  c -= b;  c ^= __rot(b, 8);  b += a; \
++  a -= c;  a ^= __rot(c,16);  c += b; \
++  b -= a;  b ^= __rot(a,19);  a += c; \
++  c -= b;  c ^= __rot(b, 4);  b += a; \
++}
++
++/* __jhash_final - final mixing of 3 32-bit values (a,b,c) into c */
++#define __jhash_final(a,b,c) \
+ { \
+-  a -= b; a -= c; a ^= (c>>13); \
+-  b -= c; b -= a; b ^= (a<<8); \
+-  c -= a; c -= b; c ^= (b>>13); \
+-  a -= b; a -= c; a ^= (c>>12);  \
+-  b -= c; b -= a; b ^= (a<<16); \
+-  c -= a; c -= b; c ^= (b>>5); \
+-  a -= b; a -= c; a ^= (c>>3);  \
+-  b -= c; b -= a; b ^= (a<<10); \
+-  c -= a; c -= b; c ^= (b>>15); \
++  c ^= b; c -= __rot(b,14); \
++  a ^= c; a -= __rot(c,11); \
++  b ^= a; b -= __rot(a,25); \
++  c ^= b; c -= __rot(b,16); \
++  a ^= c; a -= __rot(c,4);  \
++  b ^= a; b -= __rot(a,14); \
++  c ^= b; c -= __rot(b,24); \
+ }
+ 
+-/* The golden ration: an arbitrary value */
+-#define JHASH_GOLDEN_RATIO    0x9e3779b9
++/* An arbitrary initial parameter */
++#define JHASH_GOLDEN_RATIO    0xdeadbeef
+ 
+ /* The most generic version, hashes an arbitrary sequence
+  * of bytes.  No alignment or length assumptions are made about
+- * the input key.
++ * the input key. The result depends on endianness.
+  */
+ static inline u32 jhash(const void *key, u32 length, u32 initval)
+ {
+-      u32 a, b, c, len;
++      u32 a,b,c;
+       const u8 *k = key;
+ 
+-      len = length;
+-      a = b = JHASH_GOLDEN_RATIO;
+-      c = initval;
+-
+-      while (len >= 12) {
+-              a += (k[0] +((u32)k[1]<<8) +((u32)k[2]<<16) +((u32)k[3]<<24));
+-              b += (k[4] +((u32)k[5]<<8) +((u32)k[6]<<16) +((u32)k[7]<<24));
+-              c += (k[8] +((u32)k[9]<<8) +((u32)k[10]<<16)+((u32)k[11]<<24));
+-
+-              __jhash_mix(a,b,c);
++      /* Set up the internal state */
++      a = b = c = JHASH_GOLDEN_RATIO + length + initval;
+ 
++      /* all but the last block: affect some 32 bits of (a,b,c) */
++      while (length > 12) {
++              a += (k[0] + ((u32)k[1]<<8) + ((u32)k[2]<<16) + ((u32)k[3]<<24));
++              b += (k[4] + ((u32)k[5]<<8) + ((u32)k[6]<<16) + ((u32)k[7]<<24));
++              c += (k[8] + ((u32)k[9]<<8) + ((u32)k[10]<<16) + ((u32)k[11]<<24));
++              __jhash_mix(a, b, c);
++              length -= 12;
+               k += 12;
+-              len -= 12;
+       }
+ 
+-      c += length;
+-      switch (len) {
+-      case 11: c += ((u32)k[10]<<24);
+-      case 10: c += ((u32)k[9]<<16);
+-      case 9 : c += ((u32)k[8]<<8);
+-      case 8 : b += ((u32)k[7]<<24);
+-      case 7 : b += ((u32)k[6]<<16);
+-      case 6 : b += ((u32)k[5]<<8);
++      /* last block: affect all 32 bits of (c) */
++      /* all the case statements fall through */
++      switch (length) {
++      case 12: c += (u32)k[11]<<24;
++      case 11: c += (u32)k[10]<<16;
++      case 10: c += (u32)k[9]<<8;
++      case 9 : c += k[8];
++      case 8 : b += (u32)k[7]<<24;
++      case 7 : b += (u32)k[6]<<16;
++      case 6 : b += (u32)k[5]<<8;
+       case 5 : b += k[4];
+-      case 4 : a += ((u32)k[3]<<24);
+-      case 3 : a += ((u32)k[2]<<16);
+-      case 2 : a += ((u32)k[1]<<8);
++      case 4 : a += (u32)k[3]<<24;
++      case 3 : a += (u32)k[2]<<16;
++      case 2 : a += (u32)k[1]<<8;
+       case 1 : a += k[0];
+-      };
+-
+-      __jhash_mix(a,b,c);
++              __jhash_final(a, b, c);
++      case 0 :
++              break;
++      }
+ 
+       return c;
+ }
+@@ -86,58 +101,57 @@ static inline u32 jhash(const void *key,
+  */
+ static inline u32 jhash2(const u32 *k, u32 length, u32 initval)
+ {
+-      u32 a, b, c, len;
++      u32 a, b, c;
+ 
+-      a = b = JHASH_GOLDEN_RATIO;
+-      c = initval;
+-      len = length;
++      /* Set up the internal state */
++      a = b = c = JHASH_GOLDEN_RATIO + (length<<2) + initval;
+ 
+-      while (len >= 3) {
++      /* handle most of the key */
++      while (length > 3) {
+               a += k[0];
+               b += k[1];
+               c += k[2];
+               __jhash_mix(a, b, c);
+-              k += 3; len -= 3;
++              length -= 3;
++              k += 3;
+       }
+ 
+-      c += length * 4;
+-
+-      switch (len) {
+-      case 2 : b += k[1];
+-      case 1 : a += k[0];
+-      };
+-
+-      __jhash_mix(a,b,c);
++      /* handle the last 3 u32's */
++      /* all the case statements fall through */ 
++      switch (length) {
++      case 3: c += k[2];
++      case 2: b += k[1];
++      case 1: a += k[0];
++              __jhash_final(a, b, c);
++      case 0:     /* case 0: nothing left to add */
++              break;
++      }
+ 
+       return c;
+ }
+ 
+-
+ /* A special ultra-optimized versions that knows they are hashing exactly
+  * 3, 2 or 1 word(s).
+- *
+- * NOTE: In partilar the "c += length; __jhash_mix(a,b,c);" normally
+- *       done at the end is not done here.
+  */
+ static inline u32 jhash_3words(u32 a, u32 b, u32 c, u32 initval)
+ {
+-      a += JHASH_GOLDEN_RATIO;
+-      b += JHASH_GOLDEN_RATIO;
+-      c += initval;
++      a += JHASH_GOLDEN_RATIO + initval;
++      b += JHASH_GOLDEN_RATIO + initval;
++      c += JHASH_GOLDEN_RATIO + initval;
+ 
+-      __jhash_mix(a, b, c);
++      __jhash_final(a, b, c);
+ 
+       return c;
+ }
+ 
+ static inline u32 jhash_2words(u32 a, u32 b, u32 initval)
+ {
+-      return jhash_3words(a, b, 0, initval);
++      return jhash_3words(0, a, b, initval);
+ }
+ 
+ static inline u32 jhash_1word(u32 a, u32 initval)
+ {
+-      return jhash_3words(a, 0, 0, initval);
++      return jhash_3words(0, 0, a, initval);
+ }
+ 
+ #endif /* _LINUX_JHASH_H */

diff --git a/target/linux/generic-2.6/patches-2.6.32/202-mips-freestanding.patch b/target/linux/generic-2.6/patches-2.6.32/202-mips-freestanding.patch
new file mode 100644 (file)
index 0000000..0c6d585
--- /dev/null
+++ b/target/linux/generic-2.6/patches-2.6.32/202-mips-freestanding.patch
@@ -0,0 +1,12 @@
+--- a/arch/mips/Makefile
++++ b/arch/mips/Makefile
+@@ -624,6 +624,9 @@ else
+ load-$(CONFIG_CPU_CAVIUM_OCTEON)      += 0xffffffff81100000
+ endif
+ 
++# temporary until string.h is fixed
++cflags-y += -ffreestanding
++
+ cflags-y                      += -I$(srctree)/arch/mips/include/asm/mach-generic
+ drivers-$(CONFIG_PCI)         += arch/mips/pci/
+ 

diff --git a/target/linux/generic-2.6/patches-2.6.32/203-slab_maxsize.patch b/target/linux/generic-2.6/patches-2.6.32/203-slab_maxsize.patch
new file mode 100644 (file)
index 0000000..0c1ae72
--- /dev/null
+++ b/target/linux/generic-2.6/patches-2.6.32/203-slab_maxsize.patch
@@ -0,0 +1,13 @@
+--- a/include/linux/slab.h
++++ b/include/linux/slab.h
+@@ -124,8 +124,8 @@ int kmem_ptr_validate(struct kmem_cache 
+  * 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-2.6/patches-2.6.32/204-jffs2_eofdetect.patch b/target/linux/generic-2.6/patches-2.6.32/204-jffs2_eofdetect.patch
new file mode 100644 (file)
index 0000000..16d3e1f
--- /dev/null
+++ b/target/linux/generic-2.6/patches-2.6.32/204-jffs2_eofdetect.patch
@@ -0,0 +1,132 @@
+--- a/fs/jffs2/build.c
++++ b/fs/jffs2/build.c
+@@ -111,6 +111,17 @@ 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;
+@@ -400,7 +403,7 @@ 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
+@@ -473,7 +476,7 @@ 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);
+@@ -489,9 +492,9 @@ 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;
+ 
+@@ -510,9 +513,9 @@ 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;
+                               }
+@@ -525,7 +528,7 @@ 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. */
+@@ -546,6 +549,17 @@ 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;
+ 
+@@ -671,7 +685,7 @@ 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) {
+@@ -907,7 +921,7 @@ 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-2.6/patches-2.6.32/205-skb_padding.patch b/target/linux/generic-2.6/patches-2.6.32/205-skb_padding.patch
new file mode 100644 (file)
index 0000000..948c0b2
--- /dev/null
+++ b/target/linux/generic-2.6/patches-2.6.32/205-skb_padding.patch
@@ -0,0 +1,56 @@
+--- a/include/linux/skbuff.h
++++ b/include/linux/skbuff.h
+@@ -1383,11 +1383,18 @@ static inline int skb_network_offset(con
+  *
+  * Various parts of the networking layer expect at least 32 bytes of
+  * headroom, you should not reduce this.
++ *
++ * This has been changed to 64 to acommodate for routing between ethernet
++ * and wireless, but only for new allocations
+  */
+ #ifndef NET_SKB_PAD
+ #define NET_SKB_PAD   32
+ #endif
+ 
++#ifndef NET_SKB_PAD_ALLOC
++#define NET_SKB_PAD_ALLOC     64
++#endif
++
+ extern int ___pskb_trim(struct sk_buff *skb, unsigned int len);
+ 
+ static inline void __skb_trim(struct sk_buff *skb, unsigned int len)
+@@ -1477,9 +1484,9 @@ static inline void __skb_queue_purge(str
+ static inline struct sk_buff *__dev_alloc_skb(unsigned int length,
+                                             gfp_t gfp_mask)
+ {
+-      struct sk_buff *skb = alloc_skb(length + NET_SKB_PAD, gfp_mask);
++      struct sk_buff *skb = alloc_skb(length + NET_SKB_PAD_ALLOC, gfp_mask);
+       if (likely(skb))
+-              skb_reserve(skb, NET_SKB_PAD);
++              skb_reserve(skb, NET_SKB_PAD_ALLOC);
+       return skb;
+ }
+ 
+@@ -1552,7 +1559,7 @@ static inline int __skb_cow(struct sk_bu
+               delta = headroom - skb_headroom(skb);
+ 
+       if (delta || cloned)
+-              return pskb_expand_head(skb, ALIGN(delta, NET_SKB_PAD), 0,
++              return pskb_expand_head(skb, ALIGN(delta, NET_SKB_PAD_ALLOC), 0,
+                                       GFP_ATOMIC);
+       return 0;
+ }
+--- a/net/core/skbuff.c
++++ b/net/core/skbuff.c
+@@ -336,9 +336,9 @@ struct sk_buff *__netdev_alloc_skb(struc
+       int node = dev->dev.parent ? dev_to_node(dev->dev.parent) : -1;
+       struct sk_buff *skb;
+ 
+-      skb = __alloc_skb(length + NET_SKB_PAD, gfp_mask, 0, node);
++      skb = __alloc_skb(length + NET_SKB_PAD_ALLOC, gfp_mask, 0, node);
+       if (likely(skb)) {
+-              skb_reserve(skb, NET_SKB_PAD);
++              skb_reserve(skb, NET_SKB_PAD_ALLOC);
+               skb->dev = dev;
+       }
+       return skb;

diff --git a/target/linux/generic-2.6/patches-2.6.32/207-powerpc_asm_segment_h.patch b/target/linux/generic-2.6/patches-2.6.32/207-powerpc_asm_segment_h.patch
new file mode 100644 (file)
index 0000000..1272e82
--- /dev/null
+++ b/target/linux/generic-2.6/patches-2.6.32/207-powerpc_asm_segment_h.patch
@@ -0,0 +1,9 @@
+--- /dev/null
++++ b/include/asm-powerpc/segment.h
+@@ -0,0 +1,6 @@
++#ifndef _ASM_SEGMENT_H
++#define _ASM_SEGMENT_H
++
++/* Only here because we have some old header files that expect it.. */
++
++#endif /* _ASM_SEGMENT_H */

diff --git a/target/linux/generic-2.6/patches-2.6.32/209-mini_fo.patch b/target/linux/generic-2.6/patches-2.6.32/209-mini_fo.patch
new file mode 100644 (file)
index 0000000..0b4091c
--- /dev/null
+++ b/target/linux/generic-2.6/patches-2.6.32/209-mini_fo.patch
@@ -0,0 +1,7780 @@
+--- a/fs/Kconfig
++++ b/fs/Kconfig
+@@ -180,6 +180,7 @@ source "fs/ubifs/Kconfig"
+ source "fs/cramfs/Kconfig"
+ source "fs/squashfs/Kconfig"
+ source "fs/freevxfs/Kconfig"
++source "fs/mini_fo/Kconfig"
+ source "fs/minix/Kconfig"
+ source "fs/omfs/Kconfig"
+ source "fs/hpfs/Kconfig"
+--- a/fs/Makefile
++++ b/fs/Makefile
+@@ -77,6 +77,7 @@ obj-$(CONFIG_SQUASHFS)               += squashfs/
+ obj-y                         += ramfs/
+ obj-$(CONFIG_HUGETLBFS)               += hugetlbfs/
+ obj-$(CONFIG_CODA_FS)         += coda/
++obj-$(CONFIG_MINI_FO)         += mini_fo/
+ obj-$(CONFIG_MINIX_FS)                += minix/
+ obj-$(CONFIG_FAT_FS)          += fat/
+ obj-$(CONFIG_BFS_FS)          += bfs/
+--- /dev/null
++++ b/fs/mini_fo/aux.c
+@@ -0,0 +1,577 @@
++/*
++ * Copyright (c) 1997-2003 Erez Zadok
++ * Copyright (c) 2001-2003 Stony Brook University
++ *
++ * For specific licensing information, see the COPYING file distributed with
++ * this package, or get one from ftp://ftp.filesystems.org/pub/fist/COPYING.
++ *
++ * This Copyright notice must be kept intact and distributed with all
++ * fistgen sources INCLUDING sources generated by fistgen.
++ */
++/*
++ * Copyright (C) 2004, 2005 Markus Klotzbuecher <mk@creamnet.de>
++ *
++ * 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.
++ */
++/*
++ *  $Id$
++ */
++
++#ifdef HAVE_CONFIG_H
++# include <config.h>
++#endif
++
++#include "fist.h"
++#include "mini_fo.h"
++
++/* check if file exists in storage  */
++int exists_in_storage(dentry_t *dentry)
++{
++      check_mini_fo_dentry(dentry);
++      if(dtost(dentry) == MODIFIED || dtost(dentry) == CREATED || dtost(dentry) == DEL_REWRITTEN)
++              return 1;
++      return 0;
++}
++
++/* check if dentry is in an existing state */
++int is_mini_fo_existant(dentry_t *dentry)
++{
++      check_mini_fo_dentry(dentry);
++
++      if(dtost(dentry) == DELETED || dtost(dentry) == NON_EXISTANT)
++              return 0;
++      else
++              return 1;
++}
++
++/*
++ * This function will create a negative storage dentry for
++ * dentry, what is required for many create like options.
++ * It will create the storage structure if necessary.
++ */
++int get_neg_sto_dentry(dentry_t *dentry)
++{
++      int err = 0;
++      unsigned int len;
++      const unsigned char *name;
++
++      if(!dentry ||
++         !dtopd(dentry) ||
++         !(dtost(dentry) == UNMODIFIED ||
++           dtost(dentry) == NON_EXISTANT ||
++           dtost(dentry) == DELETED)) {
++              printk(KERN_CRIT "mini_fo: get_neg_sto_dentry: invalid dentry passed.\n");
++              err = -1;
++              goto out;
++      }
++      /* Have we got a neg. dentry already? */
++      if(dtohd2(dentry)) {
++              err = 0;
++              goto out;
++      }
++      if(dtost(dentry->d_parent) == UNMODIFIED) {
++              /* build sto struct */
++              err = build_sto_structure(dentry->d_parent->d_parent, dentry->d_parent);
++              if(err ||
++                 dtost(dentry->d_parent) != MODIFIED) {
++                      printk(KERN_CRIT "mini_fo: get_neg_sto_dentry: ERROR building sto structure.\n");
++                      err = -1;
++                      goto out;
++              }
++      }
++
++      len = dentry->d_name.len;
++      name = dentry->d_name.name;
++
++      dtohd2(dentry) =
++              lookup_one_len(name, dtohd2(dentry->d_parent), len);
++
++ out:
++      return err;
++}
++
++int check_mini_fo_dentry(dentry_t *dentry)
++{
++      ASSERT(dentry != NULL);
++      ASSERT(dtopd(dentry) != NULL);
++      ASSERT((dtohd(dentry) != NULL) || (dtohd2(dentry) != NULL));
++
++/*    if(dtost(dentry) == MODIFIED) { */
++/*            ASSERT(dentry->d_inode != NULL); */
++/*            ASSERT(dtohd(dentry) != NULL); */
++/*            ASSERT(dtohd(dentry)->d_inode != NULL); */
++/*            ASSERT(dtohd2(dentry) != NULL); */
++/*            ASSERT(dtohd2(dentry)->d_inode != NULL); */
++/*    } */
++/*    else if(dtost(dentry) == UNMODIFIED) { */
++/*            ASSERT(dentry->d_inode != NULL); */
++/*            ASSERT( */
++/*    } */
++      return 0;
++}
++
++int check_mini_fo_file(file_t *file)
++{
++      ASSERT(file != NULL);
++      ASSERT(ftopd(file) != NULL);
++      ASSERT(file->f_dentry != NULL);
++
++      /* violent checking, check depending of state and type
++       *      if(S_ISDIR(file->f_dentry->d_inode->i_mode)) {}
++       */
++      ASSERT((ftohf(file) != NULL) || (ftohf2(file) != NULL));
++      return 0;
++}
++
++int check_mini_fo_inode(inode_t *inode)
++{
++      ASSERT(inode != NULL);
++      ASSERT(itopd(inode) != NULL);
++      ASSERT((itohi(inode) != NULL) || (itohi2(inode) != NULL));
++      return 0;
++}
++
++/*
++ * will walk a base path as provided by get_mini_fo_bpath and return
++ * the (hopefully ;-) ) positive dentry of the renamed base dir.
++ *
++ * This does some work of path_init.
++ */
++dentry_t *bpath_walk(super_block_t *sb, char *bpath)
++{
++      int err;
++        struct vfsmount *mnt;
++      struct nameidata nd;
++
++      /* be paranoid */
++      if(!bpath || bpath[0] != '/') {
++              printk(KERN_CRIT "mini_fo: bpath_walk: Invalid string.\n");
++              return NULL;
++      }
++      if(!sb || !stopd(sb)) {
++              printk(KERN_CRIT "mini_fo: bpath_walk: Invalid sb.\n");
++              return NULL;
++      }
++
++      /* fix this: how do I reach this lock?
++       * read_lock(&current->fs->lock); */
++      mnt = mntget(stopd(sb)->hidden_mnt);
++      /* read_unlock(&current->fs->lock); */
++
++      err = vfs_path_lookup(mnt->mnt_root, mnt, bpath+1, 0, &nd);
++
++      /* validate */
++      if (err || !nd.dentry || !nd.dentry->d_inode) {
++              printk(KERN_CRIT "mini_fo: bpath_walk: path_walk failed.\n");
++              return NULL;
++      }
++      return nd.dentry;
++}
++
++
++/* returns the full path of the basefile incl. its name */
++int get_mini_fo_bpath(dentry_t *dentry, char **bpath, int *bpath_len)
++{
++      char *buf_walker;
++      int len = 0;
++      dentry_t *sky_walker;
++
++      if(!dentry || !dtohd(dentry)) {
++              printk(KERN_CRIT "mini_fo: get_mini_fo_bpath: invalid dentry passed.\n");
++              return -1;
++      }
++      sky_walker = dtohd(dentry);
++
++      do {
++              len += sky_walker->d_name.len + 1 ; /* 1 for '/' */
++              sky_walker = sky_walker->d_parent;
++      } while(sky_walker != stopd(dentry->d_inode->i_sb)->base_dir_dentry);
++
++      /* 1 to oil the loop */
++      *bpath = (char*)  kmalloc(len + 1, GFP_KERNEL);
++      if(!*bpath) {
++              printk(KERN_CRIT "mini_fo: get_mini_fo_bpath: out of mem.\n");
++              return -1;
++      }
++      buf_walker = *bpath+len; /* put it on last char */
++      *buf_walker = '\n';
++      sky_walker = dtohd(dentry);
++
++      do {
++              buf_walker -= sky_walker->d_name.len;
++              strncpy(buf_walker,
++                      sky_walker->d_name.name,
++                      sky_walker->d_name.len);
++              *(--buf_walker) = '/';
++              sky_walker = sky_walker->d_parent;
++      } while(sky_walker != stopd(dentry->d_inode->i_sb)->base_dir_dentry);
++
++      /* bpath_len doesn't count newline! */
++      *bpath_len = len;
++      return 0;
++}
++
++int mini_fo_cp_cont(dentry_t *tgt_dentry, struct vfsmount *tgt_mnt,
++                  dentry_t *src_dentry, struct vfsmount *src_mnt)
++{
++      void *buf;
++      mm_segment_t old_fs;
++      file_t *tgt_file;
++      file_t *src_file;
++      int bytes, len, tmp, err;
++      err = 0;
++
++      if(!(tgt_dentry->d_inode && src_dentry->d_inode)) {
++              printk(KERN_CRIT "mini_fo_cp_cont: ERROR, neg. dentry passed.\n");
++              err = -EINVAL;
++              goto out;
++      }
++
++      dget(tgt_dentry);
++      dget(src_dentry);
++      mntget(tgt_mnt);
++      mntget(src_mnt);
++
++      /* open file write only */
++      tgt_file = dentry_open(tgt_dentry, tgt_mnt, 0x1);
++      if(!tgt_file || IS_ERR(tgt_file)) {
++              printk(KERN_CRIT "mini_fo_cp_cont: ERROR opening target file.\n");
++              err = PTR_ERR(tgt_file);
++              goto out_err;
++      }
++
++      /* open file read only */
++      src_file = dentry_open(src_dentry, src_mnt, 0x0);
++      if(!src_file || IS_ERR(src_file)) {
++              printk(KERN_CRIT "mini_fo_cp_cont: ERROR opening source file.\n");
++              err = PTR_ERR(src_file);
++
++              /* close target file */
++              fput(tgt_file);
++              goto out_err;
++      }
++
++      /* check if the filesystem(s) support read respective write */
++      if(!src_file->f_op->read || !tgt_file->f_op->write) {
++              printk(KERN_CRIT "mini_fo_cp_cont: ERROR, no fs read or write support.\n");
++              err = -EPERM;
++              goto out_close;
++      }
++
++      /* allocate a page for transfering the data */
++      buf = (void *) __get_free_page(GFP_KERNEL);
++      if(!buf) {
++              printk(KERN_CRIT "mini_fo_cp_cont: ERROR, out of kernel mem.\n");
++              goto out_err;
++      }
++
++      tgt_file->f_pos = 0;
++      src_file->f_pos = 0;
++
++      old_fs = get_fs();
++      set_fs(KERNEL_DS);
++
++      /* Doing this I assume that a read operation will return a full
++       * buffer while there is still data to read, and a less than
++       * full buffer when all data has been read.
++       */
++      bytes = len = PAGE_SIZE;
++      while(bytes == len) {
++              bytes = src_file->f_op->read(src_file, buf, len,
++                                           &src_file->f_pos);
++              tmp = tgt_file->f_op->write(tgt_file, buf, bytes,
++                                          &tgt_file->f_pos);
++              if(tmp != bytes) {
++                      printk(KERN_CRIT "mini_fo_cp_cont: ERROR writing.\n");
++                      goto out_close_unset;
++              }
++      }
++
++      free_page((unsigned long) buf);
++      set_fs(old_fs);
++      fput(tgt_file);
++      fput(src_file);
++      goto out;
++
++ out_close_unset:
++      free_page((unsigned long) buf);
++      set_fs(old_fs);
++
++ out_close:
++      fput(tgt_file);
++      fput(src_file);
++
++ out_err:
++      dput(tgt_dentry);
++      dput(src_dentry);
++
++      /* mk: not sure if this need to be done */
++      mntput(tgt_mnt);
++      mntput(src_mnt);
++
++ out:
++      return err;
++}
++
++/* mk:
++ * ndl (no-duplicate list) stuff
++ * This is used in mini_fo_readdir, to save the storage directory contents
++ * and later when reading base, match them against the list in order
++ * to avoid duplicates.
++ */
++
++/* add a file specified by name and len to the ndl
++ * Return values: 0 on success, <0 on failure.
++ */
++int ndl_add_entry(struct readdir_data *rd, const char *name, int len)
++{
++      struct ndl_entry *tmp_entry;
++
++      tmp_entry = (struct ndl_entry *)
++              kmalloc(sizeof(struct ndl_entry), GFP_KERNEL);
++      if(!tmp_entry) {
++                printk(KERN_CRIT "mini_fo: ndl_add_entry: out of mem.\n");
++                return -ENOMEM;
++        }
++        tmp_entry->name = (char*) kmalloc(len, GFP_KERNEL);
++        if(!tmp_entry->name) {
++                printk(KERN_CRIT "mini_fo: ndl_add_entry: out of mem.\n");
++                return -ENOMEM;
++        }
++      strncpy(tmp_entry->name, name, len);
++        tmp_entry->len = len;
++
++        list_add(&tmp_entry->list, &rd->ndl_list);
++        rd->ndl_size++;
++        return 0;
++}
++
++/* delete all list entries and free memory */
++void ndl_put_list(struct readdir_data *rd)
++{
++      struct list_head *tmp;
++      struct ndl_entry *tmp_entry;
++
++      if(rd->ndl_size <= 0)
++              return;
++      while(!list_empty(&rd->ndl_list)) {
++              tmp = rd->ndl_list.next;
++                list_del(tmp);
++                tmp_entry = list_entry(tmp, struct ndl_entry, list);
++              kfree(tmp_entry->name);
++                kfree(tmp_entry);
++        }
++      rd->ndl_size = 0;
++}
++
++/* Check if a file specified by name and len is in the ndl
++ * Return value: 0 if not in list, 1 if file is found in ndl.
++ */
++int ndl_check_entry(struct readdir_data *rd, const char *name, int len)
++{
++      struct list_head *tmp;
++      struct ndl_entry *tmp_entry;
++
++      if(rd->ndl_size <= 0)
++              return 0;
++
++      list_for_each(tmp, &rd->ndl_list) {
++                tmp_entry = list_entry(tmp, struct ndl_entry, list);
++                if(tmp_entry->len != len)
++                        continue;
++                if(!strncmp(tmp_entry->name, name, len))
++                        return 1;
++        }
++        return 0;
++}
++
++/* mk:
++ * Recursive function to create corresponding directorys in the storage fs.
++ * The function will build the storage directorys up to dentry.
++ */
++int build_sto_structure(dentry_t *dir, dentry_t *dentry)
++{
++      int err;
++      dentry_t *hidden_sto_dentry;
++      dentry_t *hidden_sto_dir_dentry;
++
++      if(dentry->d_parent != dir) {
++              printk(KERN_CRIT "mini_fo: build_sto_structure: invalid parameter or meta data corruption [1].\n");
++              return 1;
++      }
++
++              if(dtost(dir) != MODIFIED) {
++              err = build_sto_structure(dir->d_parent, dentry->d_parent);
++              if(err)
++                      return err;
++      }
++
++      /* ok, coming back again. */
++      check_mini_fo_dentry(dentry);
++      hidden_sto_dentry = dtohd2(dentry);
++
++      if(!hidden_sto_dentry) {
++              /*
++               * This is the case after creating the first
++               * hidden_sto_dentry.
++               * After one negative storage_dentry, all pointers to
++               * hidden_storage dentries are set to NULL. We need to
++               * create the negative dentry before we create the storage
++               * file.
++               */
++              unsigned int len;
++              const unsigned char *name;
++              len = dtohd(dentry)->d_name.len;
++              name = dtohd(dentry)->d_name.name;
++              hidden_sto_dentry = lookup_one_len(name, dtohd2(dir), len);
++              dtohd2(dentry) = hidden_sto_dentry;
++      }
++
++      /* was: hidden_sto_dir_dentry = lock_parent(hidden_sto_dentry); */
++      hidden_sto_dir_dentry = dget(hidden_sto_dentry->d_parent);
++#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,16)
++      mutex_lock(&hidden_sto_dir_dentry->d_inode->i_mutex);
++#else
++      down(&hidden_sto_dir_dentry->d_inode->i_sem);
++#endif
++      /* lets be safe */
++      if(dtohd2(dir) != hidden_sto_dir_dentry) {
++              printk(KERN_CRIT "mini_fo: build_sto_structure: invalid parameter or meta data corruption [2].\n");
++              return 1;
++      }
++
++      /* check for errors in lock_parent */
++      err = PTR_ERR(hidden_sto_dir_dentry);
++      if(IS_ERR(hidden_sto_dir_dentry)) {
++              printk(KERN_CRIT "mini_fo: build_sto_structure: lock_parent failed.\n");
++              return err;
++      }
++
++      err = vfs_mkdir(hidden_sto_dir_dentry->d_inode,
++                      hidden_sto_dentry,
++                      dir->d_inode->i_mode);
++
++      if(err) {
++              printk(KERN_CRIT "mini_fo: build_sto_structure: failed to create storage dir [1].\n");
++              /* was: unlock_dir(dir); */
++#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,16)
++              mutex_unlock(&dir->d_inode->i_mutex);
++#else
++              up(&dir->d_inode->i_sem);
++#endif
++              dput(dir);
++              return err;
++      }
++
++      /* everything ok! */
++      if(!dtohd2(dentry)->d_inode) {
++              printk(KERN_CRIT "mini_fo: build_sto_structure: failed to create storage dir [2].\n");
++              /* was: unlock_dir(dir); */
++#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,16)
++              mutex_unlock(&dir->d_inode->i_mutex);
++#else
++              up(&dir->d_inode->i_sem);
++#endif
++              dput(dir);
++              return 1;
++      }
++
++      /* interpose the new inode and set new state */
++      itohi2(dentry->d_inode) = igrab(dtohd2(dentry)->d_inode);
++      dtopd(dentry)->state = MODIFIED;
++
++      /* initalize the wol list */
++      itopd(dentry->d_inode)->deleted_list_size = -1;
++      itopd(dentry->d_inode)->renamed_list_size = -1;
++      meta_build_lists(dentry);
++
++      fist_copy_attr_all(dentry->d_inode, itohi2(dentry->d_inode));
++      fist_copy_attr_timesizes(dir->d_inode,
++                               hidden_sto_dir_dentry->d_inode);
++      dir->d_inode->i_nlink++;
++      /* was: unlock_dir(hidden_sto_dir_dentry); */
++#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,16)
++      mutex_unlock(&hidden_sto_dir_dentry->d_inode->i_mutex);
++#else
++      up(&hidden_sto_dir_dentry->d_inode->i_sem);
++#endif
++      dput(hidden_sto_dir_dentry);
++      return 0;
++}
++
++
++#if 0 /* unused */
++
++/*
++ * Read "len" bytes from "filename" into "buf".
++ * "buf" is in kernel space.
++ */
++int
++mini_fo_read_file(const char *filename, void *buf, int len)
++{
++    file_t *filp;
++    mm_segment_t oldfs;
++    int bytes;
++    /* Chroot? Maybe NULL isn't right here */
++    filp = filp_open(filename, O_RDONLY, 0);
++    if (!filp || IS_ERR(filp)) {
++      printk("mini_fo_read_file err %d\n", (int) PTR_ERR(filp));
++      return -1;  /* or do something else */
++    }
++
++    if (!filp->f_op->read)
++      return -2;  /* file(system) doesn't allow reads */
++
++    /* now read len bytes from offset 0 */
++    filp->f_pos = 0;          /* start offset */
++    oldfs = get_fs();
++    set_fs(KERNEL_DS);
++    bytes = filp->f_op->read(filp, buf, len, &filp->f_pos);
++    set_fs(oldfs);
++
++    /* close the file */
++    fput(filp);
++
++    return bytes;
++}
++
++
++
++/*
++ * Write "len" bytes from "buf" to "filename"
++ * "buf" is in kernel space.
++ */
++int
++mini_fo_write_file(const char *filename, void *buf, int len)
++{
++    file_t *filp;
++    mm_segment_t oldfs;
++    int bytes;
++                              /* Chroot? Maybe NULL isn't right here */
++    filp = filp_open(filename, O_RDWR|O_CREAT, 0640);
++    if (!filp || IS_ERR(filp)) {
++      printk("mini_fo_write_file err %d\n", (int) PTR_ERR(filp));
++      return -1;  /* or do something else */
++    }
++
++    if (!filp->f_op->write)
++      return -2;  /* file(system) doesn't allow writes */
++
++    /* now write len bytes from offset 0 */
++    filp->f_pos = 0;          /* start offset */
++    oldfs = get_fs();
++    set_fs(KERNEL_DS);
++    bytes = filp->f_op->write(filp, buf, len, &filp->f_pos);
++    set_fs(oldfs);
++
++    /* close the file */
++    fput(filp);
++
++    return bytes;
++}
++
++#endif /* unused */
++
+--- /dev/null
++++ b/fs/mini_fo/ChangeLog
+@@ -0,0 +1,281 @@
++2006-01-24  Markus Klotzbuecher  <mk@mary.denx.de>
++
++      * Add tons of ugly ifdefs to Ed L. Cashin's mutex patch to
++          retain backwards compatibility.
++
++2006-01-24  Ed L. Cashin <ecashin@coraid.com>
++
++      * Support for the new mutex infrastructure
++      (7892f2f48d165a34b0b8130c8a195dfd807b8cb6)
++
++2005-10-15  Markus Klotzbuecher  <mk@localhost.localdomain>
++
++      * Bugfix for a serious memory leak in mini_fo_follow_link.
++
++2005-09-21  Markus Klotzbuecher  <mk@mary>
++
++      * new release 0.6.1
++
++      * fix of a compiler warning due to changes in 2.6.13
++
++2005-09-21  Klaus Wenninger  <klaus.wenninger@siemens.com>
++
++      * file.c: readdir: fix for a bug that caused directory entries
++          to show up twice when using storage filesystems such as
++          minixfs or pramfs.
++
++2005-06-30  Eric Lammerts <eric@lammerts.org>
++
++      * fix for an oops when overwriting a binary thats beeing
++          executed.
++
++2005-06-09    <mk@mary>
++
++      * Renamed overlay to mini_fo-overlay.
++
++      * Added mini_fo-merge script to allow merging of storage and base
++      after making modifications.
++
++2005-05-22  root  <mk@mary>
++
++      * Added overlay script that allows to easily mount mini_fo ontop
++      of a given base directory
++
++2005-05-10    <mk@mary>
++
++      * inode.c: xattr functions return -EOPNOSUPP instead of
++          -ENOSUPP, what confuses "ls -l"
++
++      * Changed license from LGPL to GPL.
++
++2005-05-08  root  <mk@mary>
++
++      * Makefile: clean it up and added make install and make
++          uninstall.
++
++2005-05-06    <mk@mary>
++
++      * merged devel branch back to main. [v0-6-0-pre3]
++
++      * removed unused files print.c and fist_ioctl. [devel-0-0-18]
++
++      * ioctl: removed fist_ioctl stuff, that is not needed for
++          now.
++
++2005-05-03    <mk@mary>
++
++      * file.c: simplified mini_fo_open and mini_fo_setattr using
++          new state changing functions. [devel-0-0-17]
++
++      * inode.c: Fixed getattr state bug (see below) in 2.4 function
++          mini_fo_inode revalidate.
++
++      * inode.c: found an other bug in mini_fo_getattr. States are not
++        reliable in this function, as a file can be opened, unlinked and
++        the getattr function called. This results in a deleted dentry
++        with an inode. Fix is to ignore states and simply use the inode
++        available.
++
++2005-04-29    <mk@mary>
++
++      * file.c: Bugfix and cleanup in fasync and fsync. [devel-0-0-16]
++
++      * file.c: do not use mini_fo_lock so the generic version is
++          used (I guess).
++
++      * inode.c: getattr, never call getattr on lower files, as this
++          will cause the inum to change.
++
++      * inode.c: rename_reg_file renamed to rename_nondir, as it
++          doesn't matter as long it't not a dir. Removed all
++          rename_dev_file etc.
++
++      * tagged as devel-0-0-15
++
++      * inode.c: added support for chosing support for extended
++          attrs at compile time by XATTR define in mini_fo.h .
++
++      * inode.c: fixed mini_fo_getattr to use mini_fo inode and not
++          lower again, what avoids inode number changes that confused
++          rm again. This is the proper solution.
++
++2005-04-24    <mk@mary>
++
++      * all files: updated Copyright notive to 2005. [devel-0-0-14]
++
++      * inode.c: fixed mini_fo_getattr to not change the inode
++          number, even if lower files change.
++
++      * super.c: fixed a bug that caused deleted base file to show
++          up suddenly after some time, or after creating a special
++          file. The problem was that after some time or after special
++          file creating sync_sb_inodes is called by the vfs, that
++          called our mini_fo_put_inode. There was (wrongly) called
++          __meta_put_lists, that nuked the lists, although the inode
++          was going to continue its life. Moving __meta_put_lists to
++          mini_fo_clear_inode, where an inode is really destroyed,
++          solved the problem.
++
++
++2005-04-23    <mk@mary>
++
++      * state.c, aux.c: more cleaning up and
++          simplifications. [devel-0-0-13]
++
++      * inode.c: implemented mini_fo_getattr, that was required for
++          2.6 because inode_revalidate has been remove there, and the
++        old "du" bug returned.
++
++
++2005-04-20    <mk@mary>
++
++      * aux.c: get_neg_sto_dentry(): allow to be called for dentries
++          in state UNMODIFIED, NON_EXISTANT _and_ DELETED.
++
++2005-04-19    <mk@mary>
++
++      * Fixed a bug under 2.6 that caused files deleted via mini_fo
++          not to be deleted properly and therefore the fs filled up
++          untill no memory was left. [devel-0-0-12]
++
++      * Added basic hard link support. This means that creating
++          hardlinks will work, but existing ones will be treated as
++          individual files. [devel-0-0-11]
++
++2005-04-17    <mk@mary>
++
++      * Bugfixes
++
++2005-04-13  root  <mk@mary>
++
++      * Added file state.c for the state transition
++          functions. Doesn't work very well yet, though...
++
++2005-04-12    <mk@mary>
++
++      * Porting to 2.6 started, which is easier than expected, also
++          due to Olivier previous work.
++
++2005-04-08    <mk@mary>
++
++      * Fixed the bug that caused du to return invalid sizes of
++          directory trees. The problem was that
++          mini_fo_inode_revalidate didn't always copy the attributes
++          from the base inode properly.
++
++2005-04-01  Markus Klotzbuecher  <mk@chasey>
++
++      * Merged devel branch back to main trunk and updated the
++          RELEASE notes. This will be 0-6-0-pre1.
++
++2005-03-31  Markus Klotzbuecher  <mk@chasey>
++
++      * Fixed some bugs in rename_reg_file, that only showed up in
++          the kernel compile test. Kernel compiles cleanly ontop of
++          mini_fo, now also make mrproper etc. work. Seems pretty stable.
++
++2005-03-28  Markus Klotzbuecher  <mk@chasey>
++
++      * Many, many directory renaming bugfixes and a lot of other
++          cleanup. Dir renaming seems to work relatively stable.
++
++2005-03-22  Markus Klotzbuecher  <mk@chasey>
++
++      * Finished implementing lightweight directory renaming. Some
++          basic testing indicates it works fine.
++        Next is to implement testcases for the testsuite and confirm
++          everything is really working ok.
++
++2005-03-18  Markus Klotzbuecher  <mk@chasey>
++
++      * Finished implementing meta.c stuff required for directory
++          renaming.
++
++2005-03-17  Markus Klotzbuecher  <mk@chasey>
++
++      * Fixed all compile warnings + an extremly old bug that
++          somehow crept in while reworking the wol stuff to the META
++          system. Turning on -Werror again... :-)
++
++      * Fixed some bugs in the new rename_reg_file function.
++
++      * Rewrote mini_fo rename and split it into several
++          subfunctions, that handle the different types
++          seperately. Rewrote the regular file function aswell, as it
++          was implemented somewhat inefficient.
++
++2005-03-16  Markus Klotzbuecher  <mk@chasey>
++
++      * Implemented new META subsystem, removed old WOL stuff in favor
++        if it.
++
++      * After some basic testing everything seems ok...
++
++2005-03-11  Markus Klotzbuecher  <mk@chasey>
++
++      * Renaming a non regular file caused trouble because I always
++        tried to copy the contents. Now I only do this for regular
++        files. mini_fo_rename still isn't implemented properly, renaming
++        of device files, symlinks etc. results in a empty regular file
++        instead of the proper type.
++
++      * Directory renaming suddenly works! What a surprise! I guess
++          this is because renaming is implemented as making a copy and
++          removing the original. Still this might not work
++          everywhere...
++
++2005-03-09  Markus Klotzbuecher  <mk@chasey>
++
++      * Bugfix, when a mini_fo directory that exists in storage
++        (state: MODIFIED, CREATED and DEL_REWRITTEN) is deleted, a
++        possibly existing WOL file contained in it needs to be
++        deleted too.
++
++      * Starting cleanup: defined state names in order to get rid of
++          the state numbers.
++
++2005-03-08  Markus Klotzbuecher  <mk@chasey>
++
++      * Makefile fix, fist_ioctl was built against wrong sources if ARCH=um
++
++      * Fixed a bug in dentry.c, mini_fo_d_hash. In state 4 =
++          DEL_REWRITTEN the hash was calculated from the base dentry,
++          which was wrong and and caused assertions in
++          __mini_fo_hidden_dentry to fail.
++
++2005-02-21    <mk@mary>
++
++      * Implemented directory deleting (inode.c)
++
++      * main.c: made mini_fo_parse_options a little more robust.
++
++2004-12-22    <mk@mary>
++
++      * Makefile cleanup and uml stuff, removed unneccessary files
++
++      * Created a new and hopefully more informative README
++
++      * CHANGELOG: created a new CHANGELOG and added old entries reversely
++
++
++2004-10-24 Gleb Natapov <gleb@nbase.co.il>
++
++      * Fix: owner and group where not correctly copied from base to
++          storage.
++
++
++2004-10-05 Gleb Natapov <gleb@nbase.co.il>
++
++      * Implementation of fsync, fasync and lock mini_fo functions.
++
++
++2004-09-29 Bob Lee <bob@pantasys.com>
++
++      * Fix of a serious pointer bug
++
++
++2004-09-28 Gleb Natapov <gleb@nbase.co.il>
++
++      * Implementation of mini_fo_mknod and mini_fo_rename, support
++          for device files.
++
+--- /dev/null
++++ b/fs/mini_fo/dentry.c
+@@ -0,0 +1,244 @@
++/*
++ * Copyright (c) 1997-2003 Erez Zadok
++ * Copyright (c) 2001-2003 Stony Brook University
++ *
++ * For specific licensing information, see the COPYING file distributed with
++ * this package, or get one from ftp://ftp.filesystems.org/pub/fist/COPYING.
++ *
++ * This Copyright notice must be kept intact and distributed with all
++ * fistgen sources INCLUDING sources generated by fistgen.
++ */
++/*
++ * Copyright (C) 2004, 2005 Markus Klotzbuecher <mk@creamnet.de>
++ *
++ * 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.
++ */
++
++/*
++ *  $Id$
++ */
++
++#ifdef HAVE_CONFIG_H
++# include <config.h>
++#endif
++
++#include "fist.h"
++#include "mini_fo.h"
++
++/*
++ * THIS IS A BOOLEAN FUNCTION: returns 1 if valid, 0 otherwise.
++ */
++STATIC int
++#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,0)
++mini_fo_d_revalidate(dentry_t *dentry, struct nameidata *nd)
++#else
++mini_fo_d_revalidate(dentry_t *dentry, int flags)
++#endif
++{
++      int err1 = 1; /* valid = 1, invalid = 0 */
++      int err2 = 1;
++      dentry_t *hidden_dentry;
++      dentry_t *hidden_sto_dentry;
++
++
++      check_mini_fo_dentry(dentry);
++
++      hidden_dentry  = dtohd(dentry);
++      hidden_sto_dentry = dtohd2(dentry);
++
++      if(hidden_dentry &&
++         hidden_dentry->d_op &&
++         hidden_dentry->d_op->d_revalidate) {
++#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,0)
++              err1 = hidden_dentry->d_op->d_revalidate(hidden_dentry, nd);
++#else
++              err1 = hidden_dentry->d_op->d_revalidate(hidden_dentry, flags);
++#endif
++      }
++      if(hidden_sto_dentry &&
++         hidden_sto_dentry->d_op &&
++         hidden_sto_dentry->d_op->d_revalidate) {
++#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,0)
++              err2 = hidden_sto_dentry->d_op->d_revalidate(hidden_sto_dentry,
++                                                           nd);
++#else
++              err2 = hidden_sto_dentry->d_op->d_revalidate(hidden_sto_dentry,
++                                                           flags);
++#endif
++      }
++
++      /* mk: if one of the lower level dentries are valid,
++       * the mini_fo dentry is too.
++       */
++      return (err1 || err2);
++}
++
++
++STATIC int
++mini_fo_d_hash(dentry_t *dentry, qstr_t *name)
++{
++      int err = 0;
++      dentry_t *hidden_dentry;
++      dentry_t *hidden_sto_dentry;
++
++      /* hidden_dentry = mini_fo_hidden_dentry(dentry);
++       * hidden_sto_dentry = mini_fo_hidden_sto_dentry(dentry); */
++
++      /* state 1, 3, 4, 5: build the hash for the storage dentry */
++      if((dtopd(dentry)->state == MODIFIED) ||
++         (dtopd(dentry)->state == CREATED) ||
++         (dtopd(dentry)->state == DEL_REWRITTEN) ||
++         (dtopd(dentry)->state == DELETED)) {
++              hidden_sto_dentry = dtohd2(dentry);
++              if(hidden_sto_dentry &&
++                 hidden_sto_dentry->d_op &&
++                 hidden_sto_dentry->d_op->d_hash) {
++                      err = hidden_sto_dentry->d_op->d_hash(hidden_sto_dentry, name);
++              }
++              goto out;
++      }
++      /* state 2: build the hash for the base dentry */
++      if(dtopd(dentry)->state == UNMODIFIED) {
++              hidden_dentry = dtohd(dentry);
++              if(hidden_dentry &&
++                 hidden_dentry->d_op &&
++                 hidden_dentry->d_op->d_hash) {
++                      err = hidden_dentry->d_op->d_hash(hidden_dentry, name);
++              }
++              goto out;
++      }
++      /* state 6: build hash for the dentry that exists */
++      if(dtopd(dentry)->state == NON_EXISTANT) {
++              hidden_sto_dentry = dtohd2(dentry);
++              if(hidden_sto_dentry &&
++                 hidden_sto_dentry->d_op &&
++                 hidden_sto_dentry->d_op->d_hash) {
++                      err = hidden_sto_dentry->d_op->d_hash(hidden_sto_dentry, name);
++                      goto out;
++              }
++              hidden_dentry = dtohd(dentry);
++              if(hidden_dentry &&
++                 hidden_dentry->d_op &&
++                 hidden_dentry->d_op->d_hash) {
++                      err = hidden_dentry->d_op->d_hash(hidden_dentry, name);
++                      goto out;
++              }
++      }
++
++      printk(KERN_CRIT "mini_fo: d_hash: invalid state detected.\n");
++
++ out:
++      return err;
++}
++
++
++STATIC int
++mini_fo_d_compare(dentry_t *dentry, qstr_t *a, qstr_t *b)
++{
++      int err;
++      dentry_t *hidden_dentry=NULL;
++
++      /* hidden_dentry = mini_fo_hidden_dentry(dentry); */
++      if(dtohd2(dentry))
++              hidden_dentry = dtohd2(dentry);
++      else if(dtohd(dentry))
++              hidden_dentry = dtohd(dentry);
++
++      if (hidden_dentry && hidden_dentry->d_op && hidden_dentry->d_op->d_compare) {
++              err = hidden_dentry->d_op->d_compare(hidden_dentry, a, b);
++      } else {
++              err = ((a->len != b->len) || memcmp(a->name, b->name, b->len));
++      }
++
++      return err;
++}
++
++
++int
++mini_fo_d_delete(dentry_t *dentry)
++{
++      dentry_t *hidden_dentry;
++      dentry_t *hidden_sto_dentry;
++      int err = 0;
++
++      /* this could be a negative dentry, so check first */
++      if (!dtopd(dentry)) {
++              printk(KERN_CRIT "mini_fo_d_delete: negative dentry passed.\n");
++              goto out;
++      }
++      hidden_dentry = dtohd(dentry);
++      hidden_sto_dentry = dtohd2(dentry);
++
++      if(hidden_dentry) {
++              if(hidden_dentry->d_op &&
++                 hidden_dentry->d_op->d_delete) {
++                      err = hidden_dentry->d_op->d_delete(hidden_dentry);
++              }
++      }
++      if(hidden_sto_dentry) {
++              if(hidden_sto_dentry->d_op &&
++                 hidden_sto_dentry->d_op->d_delete) {
++                      err = hidden_sto_dentry->d_op->d_delete(hidden_sto_dentry);
++              }
++      }
++
++ out:
++      return err;
++}
++
++
++void
++mini_fo_d_release(dentry_t *dentry)
++{
++      dentry_t *hidden_dentry;
++      dentry_t *hidden_sto_dentry;
++
++
++      /* this could be a negative dentry, so check first */
++      if (!dtopd(dentry)) {
++              printk(KERN_CRIT "mini_fo_d_release: no private data.\n");
++              goto out;
++      }
++      hidden_dentry = dtohd(dentry);
++      hidden_sto_dentry = dtohd2(dentry);
++
++      if(hidden_dentry) {
++              /* decrement hidden dentry's counter and free its inode */
++              dput(hidden_dentry);
++      }
++      if(hidden_sto_dentry) {
++                /* decrement hidden dentry's counter and free its inode */
++              dput(hidden_sto_dentry);
++      }
++
++      /* free private data (mini_fo_dentry_info) here */
++      kfree(dtopd(dentry));
++      __dtopd(dentry) = NULL; /* just to be safe */
++ out:
++      return;
++}
++
++
++/*
++ * we don't really need mini_fo_d_iput, because dentry_iput will call iput() if
++ * mini_fo_d_iput is not defined. We left this implemented for ease of
++ * tracing/debugging.
++ */
++void
++mini_fo_d_iput(dentry_t *dentry, inode_t *inode)
++{
++      iput(inode);
++}
++
++
++struct dentry_operations mini_fo_dops = {
++      d_revalidate:   mini_fo_d_revalidate,
++      d_hash:         mini_fo_d_hash,
++      d_compare:              mini_fo_d_compare,
++      d_release:              mini_fo_d_release,
++      d_delete:               mini_fo_d_delete,
++      d_iput:         mini_fo_d_iput,
++};
+--- /dev/null
++++ b/fs/mini_fo/file.c
+@@ -0,0 +1,713 @@
++/*
++ * Copyright (c) 1997-2003 Erez Zadok
++ * Copyright (c) 2001-2003 Stony Brook University
++ *
++ * For specific licensing information, see the COPYING file distributed with
++ * this package, or get one from ftp://ftp.filesystems.org/pub/fist/COPYING.
++ *
++ * This Copyright notice must be kept intact and distributed with all
++ * fistgen sources INCLUDING sources generated by fistgen.
++ */
++/*
++ * Copyright (C) 2004, 2005 Markus Klotzbuecher <mk@creamnet.de>
++ *
++ * 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.
++ */
++
++/*
++ *  $Id$
++ */
++
++#ifdef HAVE_CONFIG_H
++# include <config.h>
++#endif
++
++#include "fist.h"
++#include "mini_fo.h"
++#define ROUND_UP(x) (((x)+sizeof(long)-1) & ~(sizeof(long)-1))
++
++/*******************
++ * File Operations *
++ *******************/
++
++STATIC loff_t
++mini_fo_llseek(file_t *file, loff_t offset, int origin)
++{
++      loff_t err;
++      file_t *hidden_file = NULL;
++
++      if(S_ISDIR(file->f_dentry->d_inode->i_mode)) {
++              /* Check if trying to llseek from a directory */
++              err = -EISDIR;
++              goto out;
++      }
++      if (ftopd(file) != NULL) {
++              if(ftohf2(file)) {
++                      hidden_file = ftohf2(file);
++              } else {
++                      hidden_file = ftohf(file);
++              }
++      }
++
++      /* always set hidden position to this one */
++      hidden_file->f_pos = file->f_pos;
++
++#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,0)
++      memcpy(&(hidden_file->f_ra),
++             &(file->f_ra),
++             sizeof(struct file_ra_state));
++#else
++      if (file->f_reada) { /* update readahead information if needed */
++              hidden_file->f_reada = file->f_reada;
++              hidden_file->f_ramax = file->f_ramax;
++              hidden_file->f_raend = file->f_raend;
++              hidden_file->f_ralen = file->f_ralen;
++              hidden_file->f_rawin = file->f_rawin;
++      }
++#endif
++      if (hidden_file->f_op && hidden_file->f_op->llseek)
++              err = hidden_file->f_op->llseek(hidden_file, offset, origin);
++      else
++              err = generic_file_llseek(hidden_file, offset, origin);
++
++      if (err < 0)
++              goto out;
++
++      if (err != file->f_pos) {
++              file->f_pos = err;
++              // ION maybe this?
++              //      file->f_pos = hidden_file->f_pos;
++#if LINUX_VERSION_CODE < KERNEL_VERSION(2,6,0)
++              file->f_reada = 0;
++#endif
++              file->f_version++;
++      }
++
++ out:
++      return err;
++}
++
++
++/* mk: fanout capable */
++STATIC ssize_t
++mini_fo_read(file_t *file, char *buf, size_t count, loff_t *ppos)
++{
++      int err = -EINVAL;
++      file_t *hidden_file = NULL;
++      loff_t pos = *ppos;
++
++      if(S_ISDIR(file->f_dentry->d_inode->i_mode)) {
++              /* Check if trying to read from a directory */
++              /* printk(KERN_CRIT "mini_fo_read: ERROR: trying to read data from a directory.\n"); */
++              err = -EISDIR;
++              goto out;
++      }
++
++      if (ftopd(file) != NULL) {
++              if(ftohf2(file)) {
++                      hidden_file = ftohf2(file);
++              } else {
++                      hidden_file = ftohf(file);
++              }
++      }
++
++      if (!hidden_file->f_op || !hidden_file->f_op->read)
++              goto out;
++
++      err = hidden_file->f_op->read(hidden_file, buf, count, &pos);
++      *ppos = pos;
++
++      if (err >= 0) {
++              /* atime should also be updated for reads of size zero or more */
++              fist_copy_attr_atime(file->f_dentry->d_inode,
++                                   hidden_file->f_dentry->d_inode);
++      }
++
++#if LINUX_VERSION_CODE < KERNEL_VERSION(2,6,0)
++      /*
++       * MAJOR HACK
++       * because pread() does not have any way to tell us that it is
++       * our caller, then we don't know for sure if we have to update
++       * the file positions.  This hack relies on read() having passed us
++       * the "real" pointer of its struct file's f_pos field.
++       */
++      if (ppos == &file->f_pos)
++              hidden_file->f_pos = *ppos = pos;
++      if (hidden_file->f_reada) { /* update readahead information if needed */
++              file->f_reada = hidden_file->f_reada;
++              file->f_ramax = hidden_file->f_ramax;
++              file->f_raend = hidden_file->f_raend;
++              file->f_ralen = hidden_file->f_ralen;
++              file->f_rawin = hidden_file->f_rawin;
++      }
++#else
++      memcpy(&(file->f_ra),&(hidden_file->f_ra),sizeof(struct file_ra_state));
++#endif
++
++ out:
++      return err;
++}
++
++
++/* this mini_fo_write() does not modify data pages! */
++STATIC ssize_t
++mini_fo_write(file_t *file, const char *buf, size_t count, loff_t *ppos)
++{
++      int err = -EINVAL;
++      file_t *hidden_file = NULL;
++      inode_t *inode;
++      inode_t *hidden_inode;
++      loff_t pos = *ppos;
++
++      /* mk: fan out: */
++      if (ftopd(file) != NULL) {
++              if(ftohf2(file)) {
++                      hidden_file = ftohf2(file);
++              } else {
++                      /* This is bad! We have no storage file to write to. This
++                       * should never happen because if a file is opened for
++                       * writing, a copy should have been made earlier.
++                       */
++                      printk(KERN_CRIT "mini_fo: write : ERROR, no storage file to write.\n");
++                      err = -EINVAL;
++                      goto out;
++              }
++      }
++
++      inode = file->f_dentry->d_inode;
++      hidden_inode = itohi2(inode);
++      if(!hidden_inode) {
++              printk(KERN_CRIT "mini_fo: write: no sto inode found, not good.\n");
++              goto out;
++      }
++
++      if (!hidden_file->f_op || !hidden_file->f_op->write)
++              goto out;
++
++      /* adjust for append -- seek to the end of the file */
++      if (file->f_flags & O_APPEND)
++              pos = inode->i_size;
++
++      err = hidden_file->f_op->write(hidden_file, buf, count, &pos);
++
++      /*
++       * copy ctime and mtime from lower layer attributes
++       * atime is unchanged for both layers
++       */
++      if (err >= 0)
++              fist_copy_attr_times(inode, hidden_inode);
++
++      *ppos = pos;
++#if LINUX_VERSION_CODE < KERNEL_VERSION(2,6,0)
++      /*
++       * XXX: MAJOR HACK
++       *
++       * because pwrite() does not have any way to tell us that it is
++       * our caller, then we don't know for sure if we have to update
++       * the file positions.  This hack relies on write() having passed us
++       * the "real" pointer of its struct file's f_pos field.
++       */
++      if (ppos == &file->f_pos)
++              hidden_file->f_pos = *ppos = pos;
++#endif
++      /* update this inode's size */
++      if (pos > inode->i_size)
++              inode->i_size = pos;
++
++ out:
++      return err;
++}
++
++/* Global variable to hold a file_t pointer.
++ * This serves to allow mini_fo_filldir function to know which file is
++ * beeing read, which is required for two reasons:
++ *
++ *   - be able to call wol functions in order to avoid listing deleted
++ *     base files.
++ *   - if we're reading a directory which is in state 1, we need to
++ *     maintain a list (in mini_fo_filldir) of which files allready
++ *     have been copied to userspace,to detect files existing in base
++ *     and storage and not list them twice.
++ */
++filldir_t mini_fo_filldir_orig;
++file_t *mini_fo_filldir_file;
++
++/* mainly copied from fs/readdir.c */
++STATIC int
++#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,18)
++mini_fo_filldir(void * __buf, const char * name, int namlen, loff_t offset,
++                u64 ino, unsigned int d_type)
++#else
++mini_fo_filldir(void * __buf, const char * name, int namlen, loff_t offset,
++                ino_t ino, unsigned int d_type)
++#endif
++{
++      struct getdents_callback * buf = (struct getdents_callback *) __buf;
++      file_t* file = mini_fo_filldir_file;
++
++      /* In theses states we filter meta files in storage (WOL) */
++      if(file && (dtopd(file->f_dentry)->state == MODIFIED ||
++                  dtopd(file->f_dentry)->state == CREATED ||
++                  dtopd(file->f_dentry)->state == DEL_REWRITTEN)) {
++
++              int tmp = strlen(META_FILENAME);
++              if(tmp  == namlen) {
++                      if(!strncmp(name, META_FILENAME, namlen))
++                              return 0;
++              }
++      }
++
++      /* check if we are merging the contents of storage and base */
++      if(file && dtopd(file->f_dentry)->state == MODIFIED) {
++              /* check if we are still reading storage contents, if
++               * yes, we just save the name of the file for duplicate
++               * checking later. */
++
++              if(!ftopd(file)->rd.sto_done) {
++                      /* put file into ndl list */
++                      if(ndl_add_entry(&ftopd(file)->rd, name, namlen))
++                              printk(KERN_CRIT "mini_fo_filldir: Error adding to ndl.\n");
++              } else {
++                      /* check if file has been deleted */
++                      if(meta_check_d_entry(file->f_dentry, name, namlen))
++                              return 0;
++
++                      /* do duplicate checking */
++                      if(ndl_check_entry(&ftopd(file)->rd, name, namlen))
++                              return 0;
++              }
++      }
++
++      return mini_fo_filldir_orig(buf, name, namlen, offset, ino, d_type);
++}
++
++
++STATIC int
++mini_fo_readdir(file_t *file, void *dirent, filldir_t filldir)
++{
++      int err = 0;/* mk: ??? -ENOTDIR; */
++      file_t *hidden_file = NULL;
++      file_t *hidden_sto_file = NULL;
++      inode_t *inode;
++      struct getdents_callback *buf;
++      int oldcount;
++
++#if defined(FIST_FILTER_NAME) || defined(FIST_FILTER_SCA)
++      struct mini_fo_getdents_callback buf;
++#endif /* FIST_FILTER_NAME || FIST_FILTER_SCA */
++
++      buf = (struct getdents_callback *) dirent;
++      oldcount = buf->count;
++      inode = file->f_dentry->d_inode;
++      mini_fo_filldir_file = file;
++      mini_fo_filldir_orig = filldir;
++
++      ftopd(file)->rd.sto_done = 0;
++      do {
++              if (ftopd(file) != NULL) {
++                      if(ftohf2(file)) {
++                              hidden_sto_file = ftohf2(file);
++                              err = vfs_readdir(hidden_sto_file, mini_fo_filldir, dirent);
++                              file->f_pos = hidden_sto_file->f_pos;
++                              if (err > 0)
++                                      fist_copy_attr_atime(inode, hidden_sto_file->f_dentry->d_inode);
++                              /* not finshed yet, we'll be called again */
++                              if (buf->count != oldcount)
++                                      break;
++                      }
++
++                      ftopd(file)->rd.sto_done = 1;
++
++                      if(ftohf(file)) {
++                              hidden_file = ftohf(file);
++                              err = vfs_readdir(hidden_file, mini_fo_filldir, dirent);
++                              file->f_pos = hidden_file->f_pos;
++                              if (err > 0)
++                                      fist_copy_attr_atime(inode, hidden_file->f_dentry->d_inode);
++                      }
++
++              }
++      } while (0);
++
++      /* mk:
++       * we need to check if all the directory data has been copied to userspace,
++       * or if we will be called again by userspace to complete the operation.
++       */
++      if(buf->count == oldcount) {
++              ndl_put_list(&ftopd(file)->rd);
++      }
++
++      /* unset this, safe */
++      mini_fo_filldir_file = NULL;
++      return err;
++}
++
++
++STATIC unsigned int
++mini_fo_poll(file_t *file, poll_table *wait)
++{
++      unsigned int mask = DEFAULT_POLLMASK;
++      file_t *hidden_file = NULL;
++
++      if (ftopd(file) != NULL) {
++              if(ftohf2(file)) {
++                      hidden_file = ftohf2(file);
++              } else {
++                      hidden_file = ftohf(file);
++              }
++      }
++
++      if (!hidden_file->f_op || !hidden_file->f_op->poll)
++              goto out;
++
++      mask = hidden_file->f_op->poll(hidden_file, wait);
++
++ out:
++      return mask;
++}
++
++/* FIST-LITE special version of mmap */
++STATIC int
++mini_fo_mmap(file_t *file, vm_area_t *vma)
++{
++      int err = 0;
++      file_t *hidden_file = NULL;
++
++      /* fanout capability */
++      if (ftopd(file) != NULL) {
++              if(ftohf2(file)) {
++                      hidden_file = ftohf2(file);
++              } else {
++                      hidden_file = ftohf(file);
++              }
++      }
++
++      ASSERT(hidden_file != NULL);
++      ASSERT(hidden_file->f_op != NULL);
++      ASSERT(hidden_file->f_op->mmap != NULL);
++
++      vma->vm_file = hidden_file;
++      err = hidden_file->f_op->mmap(hidden_file, vma);
++      get_file(hidden_file); /* make sure it doesn't get freed on us */
++      fput(file);            /* no need to keep extra ref on ours */
++
++      return err;
++}
++
++
++
++STATIC int
++mini_fo_open(inode_t *inode, file_t *file)
++{
++      int err = 0;
++      int hidden_flags;
++      file_t *hidden_file = NULL;
++      dentry_t *hidden_dentry = NULL;
++
++      /* fanout stuff */
++      file_t *hidden_sto_file = NULL;
++      dentry_t *hidden_sto_dentry = NULL;
++
++      __ftopd(file) =
++              kmalloc(sizeof(struct mini_fo_file_info), GFP_KERNEL);
++      if (!ftopd(file)) {
++              err = -ENOMEM;
++              goto out;
++      }
++
++      /* init the readdir_helper structure */
++      INIT_LIST_HEAD(&ftopd(file)->rd.ndl_list);
++      ftopd(file)->rd.ndl_size = 0;
++
++      /* In certain paths this could stay uninitalized and cause trouble */
++      ftohf(file) = NULL;
++      ftohf2(file) = NULL;
++      hidden_flags = file->f_flags;
++
++      /* create storage files? */
++      if(dtost(file->f_dentry) == UNMODIFIED) {
++              if(!IS_WRITE_FLAG(file->f_flags)) {
++                      hidden_dentry = dtohd(file->f_dentry);
++                      dget(hidden_dentry);
++                      /* dentry_open will decrement mnt refcnt if err.
++                       * otherwise fput() will do an mntput() for us upon file close. */
++                      mntget(stopd(inode->i_sb)->hidden_mnt);
++                      hidden_file = dentry_open(hidden_dentry,
++                                                stopd(inode->i_sb)->hidden_mnt,
++                                                hidden_flags);
++                      if (IS_ERR(hidden_file)) {
++                              err = PTR_ERR(hidden_file);
++                              dput(hidden_dentry);
++                              goto out;
++                      }
++                      ftohf(file) = hidden_file;      /* link two files */
++                      goto out;
++              }
++              else {
++                      if(S_ISDIR(file->f_dentry->d_inode->i_mode)) {
++                              err = dir_unmod_to_mod(file->f_dentry);
++                      } else
++                              err = nondir_unmod_to_mod(file->f_dentry, 1);
++
++                      if (err) {
++                              printk("mini_fo_open: ERROR creating storage file.\n");
++                              goto out;
++                      }
++              }
++      }
++      hidden_sto_dentry = dtohd2(file->f_dentry);
++      dget(hidden_sto_dentry);
++
++      if(dtopd(file->f_dentry)->state == MODIFIED) {
++              /* Directorys are special, interpose on both lower level files */
++              if(S_ISDIR(itohi(inode)->i_mode)) {
++                      /* check for invalid file types of lower level files */
++                      if(!(S_ISDIR(itohi(inode)->i_mode) && S_ISDIR(itohi2(inode)->i_mode))) {
++                              printk(KERN_CRIT "mini_fo_open: meta data corruption detected.\n");
++                              dput(hidden_sto_dentry);
++                              err = -EINVAL;
++                              goto out;
++                      }
++
++                      /* lower level directorys are ok, open the base file */
++                      hidden_dentry = dtohd(file->f_dentry);
++                      dget(hidden_dentry);
++
++                      mntget(stopd(inode->i_sb)->hidden_mnt);
++                      hidden_file = dentry_open(hidden_dentry,
++                                                stopd(inode->i_sb)->hidden_mnt,
++                                                hidden_flags);
++                      if (IS_ERR(hidden_file)) {
++                              err = PTR_ERR(hidden_file);
++                              dput(hidden_dentry);
++                              dput(hidden_sto_dentry);
++                              goto out;
++                      }
++                      ftohf(file) = hidden_file; /* link the two files */
++              }
++      }
++
++      if(!exists_in_storage(file->f_dentry)) {
++              printk(KERN_CRIT "mini_fo_open: invalid file state detected.\n");
++              err = -EINVAL;
++              dput(hidden_sto_dentry);
++
++              /* If the base file has been opened, we need to close it here */
++              if(ftohf(file)) {
++                      if (hidden_file->f_op && hidden_file->f_op->flush)
++#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,18)
++                              hidden_file->f_op->flush(hidden_file, NULL);
++#else
++                              hidden_file->f_op->flush(hidden_file);
++#endif
++                      dput(hidden_dentry);
++              }
++              goto out;
++      }
++
++      /* ok, now we can safely open the storage file */
++      mntget(stopd(inode->i_sb)->hidden_mnt2);
++      hidden_sto_file = dentry_open(hidden_sto_dentry,
++                                    stopd(inode->i_sb)->hidden_mnt2,
++                                    hidden_flags);
++
++      /* dentry_open dputs the dentry if it fails */
++      if (IS_ERR(hidden_sto_file)) {
++              err = PTR_ERR(hidden_sto_file);
++              /* close base file if open */
++              if(ftohf(file)) {
++                      if (hidden_file->f_op && hidden_file->f_op->flush)
++#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,18)
++                              hidden_file->f_op->flush(hidden_file, NULL);
++#else
++                              hidden_file->f_op->flush(hidden_file);
++#endif
++                      dput(hidden_dentry);
++              }
++              goto out;
++      }
++      ftohf2(file) = hidden_sto_file; /* link storage file */
++
++ out:
++      if (err < 0 && ftopd(file)) {
++              kfree(ftopd(file));
++      }
++      return err;
++}
++
++STATIC int
++#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,18)
++mini_fo_flush(file_t *file, fl_owner_t id)
++#else
++mini_fo_flush(file_t *file)
++#endif
++{
++      int err1 = 0;           /* assume ok (see open.c:close_fp) */
++      int err2 = 0;
++      file_t *hidden_file = NULL;
++
++      check_mini_fo_file(file);
++
++      /* mk: we don't do any state checking here, as its not worth the time.
++       * Just flush the lower level files if they exist.
++       */
++      if(ftopd(file) != NULL) {
++              if(ftohf(file) != NULL) {
++                      hidden_file = ftohf(file);
++                      if (hidden_file->f_op && hidden_file->f_op->flush)
++#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,18)
++                              err1 = hidden_file->f_op->flush(hidden_file, id);
++#else
++                              err1 = hidden_file->f_op->flush(hidden_file);
++#endif
++              }
++              if(ftohf2(file) != NULL) {
++                      hidden_file = ftohf2(file);
++                      if (hidden_file->f_op && hidden_file->f_op->flush)
++#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,18)
++                              err2 = hidden_file->f_op->flush(hidden_file, id);
++#else
++                              err2 = hidden_file->f_op->flush(hidden_file);
++#endif
++              }
++      }
++      return (err1 | err2);
++}
++
++
++STATIC int
++mini_fo_release(inode_t *inode, file_t *file)
++{
++      int err = 0;
++      file_t *hidden_file = NULL;
++
++      if (ftopd(file) != NULL) {
++              if(ftohf(file)) {
++                      hidden_file = ftohf(file);
++                      fput(hidden_file);
++              }
++              if(ftohf2(file)) {
++                      hidden_file = ftohf2(file);
++                      fput(hidden_file);
++              }
++              kfree(ftopd(file));
++      }
++      return err;
++}
++
++STATIC int
++mini_fo_fsync(file_t *file, dentry_t *dentry, int datasync)
++{
++      int err1 = 0;
++      int err2 = 0;
++      file_t *hidden_file = NULL;
++      dentry_t *hidden_dentry;
++
++      check_mini_fo_file(file);
++
++      if ((hidden_file = ftohf(file)) != NULL) {
++              hidden_dentry = dtohd(dentry);
++              if (hidden_file->f_op && hidden_file->f_op->fsync) {
++#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,16)
++                      mutex_lock(&hidden_dentry->d_inode->i_mutex);
++#else
++                      down(&hidden_dentry->d_inode->i_sem);
++#endif
++                      err1 = hidden_file->f_op->fsync(hidden_file, hidden_dentry, datasync);
++#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,16)
++                      mutex_unlock(&hidden_dentry->d_inode->i_mutex);
++#else
++                      up(&hidden_dentry->d_inode->i_sem);
++#endif
++              }
++      }
++
++      if ((hidden_file = ftohf2(file)) != NULL) {
++              hidden_dentry = dtohd2(dentry);
++              if (hidden_file->f_op && hidden_file->f_op->fsync) {
++#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,16)
++                      mutex_lock(&hidden_dentry->d_inode->i_mutex);
++#else
++                      down(&hidden_dentry->d_inode->i_sem);
++#endif
++                      err2 = hidden_file->f_op->fsync(hidden_file, hidden_dentry, datasync);
++#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,16)
++                      mutex_unlock(&hidden_dentry->d_inode->i_mutex);
++#else
++                      up(&hidden_dentry->d_inode->i_sem);
++#endif
++              }
++      }
++      else
++              goto err;
++
++err:
++      return (err1 || err2);
++}
++
++
++STATIC int
++mini_fo_fasync(int fd, file_t *file, int flag)
++{
++      int err1 = 0;
++      int err2 = 0;
++
++      file_t *hidden_file = NULL;
++
++      check_mini_fo_file(file);
++
++      if((hidden_file = ftohf(file)) != NULL) {
++              err1 = hidden_file->f_op->fasync(fd, hidden_file, flag);
++      }
++      if((hidden_file = ftohf2(file)) != NULL) {
++              err2 = hidden_file->f_op->fasync(fd, hidden_file, flag);
++      }
++
++      return (err1 || err2);
++}
++
++
++
++struct file_operations mini_fo_dir_fops =
++      {
++              read:   generic_read_dir,
++              write:  mini_fo_write,
++              readdir: mini_fo_readdir,
++              poll:   mini_fo_poll,
++              /* ioctl:       mini_fo_ioctl, */
++              mmap:   mini_fo_mmap,
++              open:   mini_fo_open,
++              flush:  mini_fo_flush,
++              release: mini_fo_release,
++              fsync:  mini_fo_fsync,
++              fasync: mini_fo_fasync,
++              /* not needed lock:     mini_fo_lock, */
++              /* not needed: readv */
++              /* not needed: writev */
++              /* not implemented: sendpage */
++              /* not implemented: get_unmapped_area */
++      };
++
++struct file_operations mini_fo_main_fops =
++      {
++              llseek: mini_fo_llseek,
++              read:   mini_fo_read,
++              write:  mini_fo_write,
++              readdir: mini_fo_readdir,
++              poll:   mini_fo_poll,
++              /* ioctl:       mini_fo_ioctl, */
++              mmap:   mini_fo_mmap,
++              open:   mini_fo_open,
++              flush:  mini_fo_flush,
++              release: mini_fo_release,
++              fsync:  mini_fo_fsync,
++              fasync: mini_fo_fasync,
++              /* not needed: lock:    mini_fo_lock, */
++              /* not needed: readv */
++              /* not needed: writev */
++              /* not implemented: sendpage */
++              /* not implemented: get_unmapped_area */
++      };
+--- /dev/null
++++ b/fs/mini_fo/fist.h
+@@ -0,0 +1,252 @@
++/*
++ * Copyright (c) 1997-2003 Erez Zadok
++ * Copyright (c) 2001-2003 Stony Brook University
++ *
++ * For specific licensing information, see the COPYING file distributed with
++ * this package, or get one from ftp://ftp.filesystems.org/pub/fist/COPYING.
++ *
++ * This Copyright notice must be kept intact and distributed with all
++ * fistgen sources INCLUDING sources generated by fistgen.
++ */
++/*
++ * Copyright (C) 2004, 2005 Markus Klotzbuecher <mk@creamnet.de>
++ *
++ * 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.
++ */
++
++
++/*
++ *  $Id$
++ */
++
++#ifndef __FIST_H_
++#define __FIST_H_
++
++/*
++ * KERNEL ONLY CODE:
++ */
++#ifdef __KERNEL__
++#include <linux/version.h>
++#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,19)
++#include <linux/autoconf.h>
++#else
++#include <linux/config.h>
++#endif
++#if LINUX_VERSION_CODE < KERNEL_VERSION(2,6,0)
++#ifdef CONFIG_MODVERSIONS
++# define MODVERSIONS
++# include <linux/modversions.h>
++#endif /* CONFIG_MODVERSIONS */
++#endif /* KERNEL_VERSION < 2.6.0 */
++#include <linux/sched.h>
++#include <linux/kernel.h>
++#include <linux/mm.h>
++#include <linux/string.h>
++#include <linux/stat.h>
++#include <linux/errno.h>
++#include <linux/wait.h>
++#include <linux/limits.h>
++#if LINUX_VERSION_CODE < KERNEL_VERSION(2,6,0)
++#include <linux/locks.h>
++#else
++#include <linux/buffer_head.h>
++#include <linux/pagemap.h>
++#include <linux/namei.h>
++#include <linux/module.h>
++#include <linux/mount.h>
++#include <linux/page-flags.h>
++#include <linux/writeback.h>
++#include <linux/statfs.h>
++#endif
++#include <linux/smp.h>
++#include <linux/smp_lock.h>
++#include <linux/file.h>
++#include <linux/slab.h>
++#include <linux/vmalloc.h>
++#include <linux/poll.h>
++#include <linux/list.h>
++#include <linux/init.h>
++
++#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,4,20)
++#include <linux/xattr.h>
++#endif
++
++#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,0)
++#include <linux/security.h>
++#endif
++
++#include <linux/swap.h>
++
++#include <asm/system.h>
++/* #include <asm/segment.h> */
++#include <asm/mman.h>
++#include <linux/seq_file.h>
++
++/*
++ * MACROS:
++ */
++
++/* those mapped to ATTR_* were copied from linux/fs.h */
++#define FA_MODE               ATTR_MODE
++#define FA_UID                ATTR_UID
++#define FA_GID                ATTR_GID
++#define FA_SIZE               ATTR_SIZE
++#define FA_ATIME      ATTR_ATIME
++#define FA_MTIME      ATTR_MTIME
++#define FA_CTIME      ATTR_CTIME
++#define FA_ATIME_SET  ATTR_ATIME_SET
++#define FA_MTIME_SET  ATTR_MTIME_SET
++#define FA_FORCE      ATTR_FORCE
++#define FA_ATTR_FLAGS ATTR_ATTR_FLAG
++
++/* must be greater than all other ATTR_* flags! */
++#define FA_NLINK      2048
++#define FA_BLKSIZE    4096
++#define FA_BLOCKS     8192
++#define FA_TIMES      (FA_ATIME|FA_MTIME|FA_CTIME)
++#define FA_ALL                0
++
++/* macros to manage changes between kernels */
++#define INODE_DATA(i) (&(i)->i_data)
++
++#define MIN(x,y) ((x < y) ? (x) : (y))
++#define MAX(x,y) ((x > y) ? (x) : (y))
++#define MAXPATHLEN PATH_MAX
++
++#if LINUX_VERSION_CODE < KERNEL_VERSION(2,4,5)
++# define lookup_one_len(a,b,c) lookup_one(a,b)
++#endif /* LINUX_VERSION_CODE < KERNEL_VERSION(2,4,5) */
++
++#if LINUX_VERSION_CODE < KERNEL_VERSION(2,4,8)
++# define generic_file_llseek default_llseek
++#endif /* LINUX_VERSION_CODE < KERNEL_VERSION(2,4,8) */
++
++#ifndef SEEK_SET
++# define SEEK_SET 0
++#endif /* not SEEK_SET */
++
++#ifndef SEEK_CUR
++# define SEEK_CUR 1
++#endif /* not SEEK_CUR */
++
++#ifndef SEEK_END
++# define SEEK_END 2
++#endif /* not SEEK_END */
++
++#ifndef DEFAULT_POLLMASK
++# define DEFAULT_POLLMASK (POLLIN | POLLOUT | POLLRDNORM | POLLWRNORM)
++#endif /* not DEFAULT_POLLMASK */
++
++/* XXX: fix this so fistgen generates kfree() code directly */
++#define kfree_s(a,b) kfree(a)
++
++/*
++ * TYPEDEFS:
++ */
++typedef struct dentry dentry_t;
++typedef struct file file_t;
++typedef struct inode inode_t;
++typedef inode_t vnode_t;
++typedef struct page page_t;
++typedef struct qstr qstr_t;
++typedef struct super_block super_block_t;
++typedef super_block_t vfs_t;
++typedef struct vm_area_struct vm_area_t;
++
++
++/*
++ * EXTERNALS:
++ */
++
++#define FPPF(str,page) printk("PPF %s 0x%x/%d: Lck:%d Err:%d Ref:%d Upd:%d Other::%d:%d:%d:%d:\n", \
++              str, \
++              (int) page, \
++              (int) page->index, \
++              (PageLocked(page) ? 1 : 0), \
++              (PageError(page) ? 1 : 0), \
++              (PageReferenced(page) ? 1 : 0), \
++              (Page_Uptodate(page) ? 1 : 0), \
++              (PageDecrAfter(page) ? 1 : 0), \
++              (PageSlab(page) ? 1 : 0), \
++              (PageSwapCache(page) ? 1 : 0), \
++              (PageReserved(page) ? 1 : 0) \
++              )
++#define EZKDBG printk("EZK %s:%d:%s\n",__FILE__,__LINE__,__FUNCTION__)
++#if 0
++# define EZKDBG1 printk("EZK %s:%d\n",__FILE__,__LINE__)
++#else
++# define EZKDBG1
++#endif
++
++extern int fist_get_debug_value(void);
++extern int fist_set_debug_value(int val);
++#if 0 /* mini_fo doesn't need these */
++extern void fist_dprint_internal(int level, char *str,...);
++extern void fist_print_dentry(char *str, const dentry_t *dentry);
++extern void fist_print_inode(char *str, const inode_t *inode);
++extern void fist_print_file(char *str, const file_t *file);
++extern void fist_print_buffer_flags(char *str, struct buffer_head *buffer);
++extern void fist_print_page_flags(char *str, page_t *page);
++extern void fist_print_page_bytes(char *str, page_t *page);
++extern void fist_print_pte_flags(char *str, const page_t *page);
++extern void fist_checkinode(inode_t *inode, char *msg);
++extern void fist_print_sb(char *str, const super_block_t *sb);
++
++/* §$% by mk: special debug functions */
++extern void fist_mk_print_dentry(char *str, const dentry_t *dentry);
++extern void fist_mk_print_inode(char *str, const inode_t *inode);
++
++extern char *add_indent(void);
++extern char *del_indent(void);
++#endif/* mini_fo doesn't need these */
++
++
++#define STATIC
++#define ASSERT(EX)    \
++do {  \
++    if (!(EX)) {      \
++      printk(KERN_CRIT "ASSERTION FAILED: %s at %s:%d (%s)\n", #EX,   \
++             __FILE__, __LINE__, __FUNCTION__);       \
++      (*((char *)0))=0;       \
++    } \
++} while (0)
++/* same ASSERT, but tell me who was the caller of the function */
++#define ASSERT2(EX)   \
++do {  \
++    if (!(EX)) {      \
++      printk(KERN_CRIT "ASSERTION FAILED (caller): %s at %s:%d (%s)\n", #EX,  \
++             file, line, func);       \
++      (*((char *)0))=0;       \
++    } \
++} while (0)
++
++#if 0 /* mini_fo doesn't need these */
++#define dprintk(format, args...) printk(KERN_DEBUG format, ##args)
++#define fist_dprint(level, str, args...) fist_dprint_internal(level, KERN_DEBUG str, ## args)
++#define print_entry_location() fist_dprint(4, "%sIN:  %s %s:%d\n", add_indent(), __FUNCTION__, __FILE__, __LINE__)
++#define print_exit_location() fist_dprint(4, "%s OUT: %s %s:%d\n", del_indent(), __FUNCTION__, __FILE__, __LINE__)
++#define print_exit_status(status) fist_dprint(4, "%s OUT: %s %s:%d, STATUS: %d\n", del_indent(), __FUNCTION__, __FILE__, __LINE__, status)
++#define print_exit_pointer(status) \
++do { \
++  if (IS_ERR(status)) \
++    fist_dprint(4, "%s OUT: %s %s:%d, RESULT: %ld\n", del_indent(), __FUNCTION__, __FILE__, __LINE__, PTR_ERR(status)); \
++  else \
++    fist_dprint(4, "%s OUT: %s %s:%d, RESULT: 0x%x\n", del_indent(), __FUNCTION__, __FILE__, __LINE__, PTR_ERR(status)); \
++} while (0)
++#endif/* mini_fo doesn't need these */
++
++#endif /* __KERNEL__ */
++
++
++/*
++ * DEFINITIONS FOR USER AND KERNEL CODE:
++ * (Note: ioctl numbers 1--9 are reserved for fistgen, the rest
++ *  are auto-generated automatically based on the user's .fist file.)
++ */
++# define FIST_IOCTL_GET_DEBUG_VALUE   _IOR(0x15, 1, int)
++# define FIST_IOCTL_SET_DEBUG_VALUE   _IOW(0x15, 2, int)
++
++#endif /* not __FIST_H_ */
+--- /dev/null
++++ b/fs/mini_fo/inode.c
+@@ -0,0 +1,1564 @@
++/*
++ * Copyright (c) 1997-2003 Erez Zadok
++ * Copyright (c) 2001-2003 Stony Brook University
++ *
++ * For specific licensing information, see the COPYING file distributed with
++ * this package, or get one from ftp://ftp.filesystems.org/pub/fist/COPYING.
++ *
++ * This Copyright notice must be kept intact and distributed with all
++ * fistgen sources INCLUDING sources generated by fistgen.
++ */
++/*
++ * Copyright (C) 2004, 2005 Markus Klotzbuecher <mk@creamnet.de>
++ *
++ * 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.
++ */
++
++/*
++ *  $Id$
++ */
++
++#ifdef HAVE_CONFIG_H
++# include <config.h>
++#endif
++
++#include "fist.h"
++#include "mini_fo.h"
++
++STATIC int
++#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,0)
++mini_fo_create(inode_t *dir, dentry_t *dentry, int mode, struct nameidata *nd)
++#else
++mini_fo_create(inode_t *dir, dentry_t *dentry, int mode)
++#endif
++{
++      int err = 0;
++
++      check_mini_fo_dentry(dentry);
++
++#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,0)
++      err = create_sto_reg_file(dentry, mode, nd);
++#else
++      err = create_sto_reg_file(dentry, mode);
++#endif
++      check_mini_fo_dentry(dentry);
++      return err;
++}
++
++
++STATIC dentry_t *
++#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,0)
++mini_fo_lookup(inode_t *dir, dentry_t *dentry, struct nameidata* nd)
++#else
++mini_fo_lookup(inode_t *dir, dentry_t *dentry)
++#endif
++{
++      int err = 0;
++      dentry_t *hidden_dir_dentry;
++      dentry_t *hidden_dentry = NULL;
++
++      dentry_t *hidden_sto_dir_dentry;
++      dentry_t *hidden_sto_dentry = NULL;
++
++      /* whiteout flag */
++      int del_flag = 0;
++      char *bpath = NULL;
++
++      const char *name;
++      unsigned int namelen;
++
++      /* Don't allow lookups of META-files */
++      namelen = strlen(META_FILENAME);
++      if(namelen == dentry->d_name.len) {
++              if(!strncmp(dentry->d_name.name, META_FILENAME, namelen)) {
++                      err = -ENOENT;
++                      goto out;
++              }
++      }
++
++      hidden_dir_dentry = dtohd(dentry->d_parent);
++      hidden_sto_dir_dentry = dtohd2(dentry->d_parent);
++
++      name = dentry->d_name.name;
++      namelen = dentry->d_name.len;
++
++      /* must initialize dentry operations */
++      dentry->d_op = &mini_fo_dops;
++
++      /* setup the del_flag */
++      del_flag = __meta_check_d_entry(dir, name, namelen);
++      bpath = __meta_check_r_entry(dir, name, namelen);
++
++      /* perform the lookups of base and storage files:
++       *
++       * This caused some serious trouble, as a lookup_one_len passing
++       * a negative dentry oopses. Solution is to only do the lookup
++       * if the dentry is positive, else we set it to NULL
++       * More trouble, who said a *_dir_dentry can't be NULL?
++       */
++      if(bpath) {
++              /* Cross-Interposing (C), yeah! */
++              hidden_dentry = bpath_walk(dir->i_sb, bpath);
++              if(!hidden_dentry || !hidden_dentry->d_inode) {
++                      printk(KERN_CRIT "mini_fo_lookup: bpath_walk failed.\n");
++                      err= -EINVAL;
++                      goto out;
++              }
++
++              /* this can be set up safely without fear of spaghetti
++               * interposing as it is only used for copying times */
++              hidden_dir_dentry = hidden_dentry->d_parent;
++              kfree(bpath);
++      }
++      else if(hidden_dir_dentry && hidden_dir_dentry->d_inode)
++              hidden_dentry =
++                      lookup_one_len(name, hidden_dir_dentry, namelen);
++      else
++              hidden_dentry = NULL;
++
++      if(hidden_sto_dir_dentry && hidden_sto_dir_dentry->d_inode)
++              hidden_sto_dentry =
++                      lookup_one_len(name, hidden_sto_dir_dentry, namelen);
++      else
++              hidden_sto_dentry =  NULL;
++
++      /* catch error in lookup */
++      if (IS_ERR(hidden_dentry) || IS_ERR(hidden_sto_dentry)) {
++              /* mk: we need to call dput on the dentry, whose
++               * lookup_one_len operation failed, in order to avoid
++               * unmount trouble.
++               */
++              if(IS_ERR(hidden_dentry)) {
++                      printk(KERN_CRIT "mini_fo_lookup: ERR from base dentry, lookup failed.\n");
++                      err = PTR_ERR(hidden_dentry);
++              } else {
++                      dput(hidden_dentry);
++              }
++              if(IS_ERR(hidden_sto_dentry)) {
++                      printk(KERN_CRIT "mini_fo_lookup: ERR from storage dentry, lookup failed.\n");
++                      err = PTR_ERR(hidden_sto_dentry);
++              } else {
++                      dput(hidden_sto_dentry);
++              }
++              goto out;
++      }
++
++      /* allocate dentry private data */
++      __dtopd(dentry) = (struct mini_fo_dentry_info *)
++              kmalloc(sizeof(struct mini_fo_dentry_info), GFP_KERNEL);
++
++      if (!dtopd(dentry)) {
++              err = -ENOMEM;
++              goto out_dput;
++      }
++
++      /* check for different states of the mini_fo file to be looked up. */
++
++      /* state 1, file has been modified */
++      if(hidden_dentry && hidden_sto_dentry &&
++         hidden_dentry->d_inode && hidden_sto_dentry->d_inode && !del_flag) {
++
++              /* update parent directory's atime */
++              fist_copy_attr_atime(dir, hidden_sto_dir_dentry->d_inode);
++
++              dtopd(dentry)->state = MODIFIED;
++              dtohd(dentry) = hidden_dentry;
++              dtohd2(dentry) = hidden_sto_dentry;
++
++              err = mini_fo_tri_interpose(hidden_dentry,
++                                          hidden_sto_dentry,
++                                          dentry, dir->i_sb, 1);
++              if (err) {
++                      printk(KERN_CRIT "mini_fo_lookup: error interposing (state1).\n");
++                      goto out_free;
++              }
++              goto out;
++      }
++      /* state 2, file is unmodified */
++      if(hidden_dentry && hidden_dentry->d_inode && !del_flag) {
++
++              fist_copy_attr_atime(dir, hidden_dir_dentry->d_inode);
++
++              dtopd(dentry)->state = UNMODIFIED;
++              dtohd(dentry) = hidden_dentry;
++              dtohd2(dentry) = hidden_sto_dentry; /* could be negative */
++
++              err = mini_fo_tri_interpose(hidden_dentry,
++                                          hidden_sto_dentry,
++                                          dentry, dir->i_sb, 1);
++              if (err) {
++                      printk(KERN_CRIT "mini_fo_lookup: error interposing (state2).\n");
++                      goto out_free;
++              }
++              goto out;
++      }
++      /* state 3, file has been newly created */
++      if(hidden_sto_dentry && hidden_sto_dentry->d_inode && !del_flag) {
++
++              fist_copy_attr_atime(dir, hidden_sto_dir_dentry->d_inode);
++              dtopd(dentry)->state = CREATED;
++              dtohd(dentry) = hidden_dentry; /* could be negative */
++              dtohd2(dentry) = hidden_sto_dentry;
++
++              err = mini_fo_tri_interpose(hidden_dentry,
++                                          hidden_sto_dentry,
++                                          dentry, dir->i_sb, 1);
++              if (err) {
++                      printk(KERN_CRIT "mini_fo_lookup: error interposing (state3).\n");
++                      goto out_free;
++              }
++              goto out;
++      }
++
++      /* state 4, file has deleted and created again. */
++      if(hidden_dentry && hidden_sto_dentry &&
++         hidden_dentry->d_inode &&
++         hidden_sto_dentry->d_inode && del_flag) {
++
++              fist_copy_attr_atime(dir, hidden_sto_dir_dentry->d_inode);
++              dtopd(dentry)->state = DEL_REWRITTEN;
++              dtohd(dentry) = NULL;
++              dtohd2(dentry) = hidden_sto_dentry;
++
++              err = mini_fo_tri_interpose(NULL,
++                                          hidden_sto_dentry,
++                                          dentry, dir->i_sb, 1);
++              if (err) {
++                      printk(KERN_CRIT "mini_fo_lookup: error interposing (state4).\n");
++                      goto out_free;
++              }
++              /* We will never need this dentry again, as the file has been
++               * deleted from base */
++              dput(hidden_dentry);
++              goto out;
++      }
++      /* state 5, file has been deleted in base */
++      if(hidden_dentry && hidden_sto_dentry &&
++         hidden_dentry->d_inode &&
++         !hidden_sto_dentry->d_inode && del_flag) {
++
++              /* check which parents atime we need for updating */
++              if(hidden_sto_dir_dentry->d_inode)
++                      fist_copy_attr_atime(dir,
++                                           hidden_sto_dir_dentry->d_inode);
++              else
++                      fist_copy_attr_atime(dir,
++                                           hidden_dir_dentry->d_inode);
++
++              dtopd(dentry)->state = DELETED;
++              dtohd(dentry) = NULL;
++              dtohd2(dentry) = hidden_sto_dentry;
++
++              /* add negative dentry to dcache to speed up lookups */
++              d_add(dentry, NULL);
++              dput(hidden_dentry);
++              goto out;
++      }
++      /* state 6, file does not exist */
++      if(((hidden_dentry && !hidden_dentry->d_inode) ||
++          (hidden_sto_dentry && !hidden_sto_dentry->d_inode)) && !del_flag)
++              {
++                      /* check which parents atime we need for updating */
++                      if(hidden_sto_dir_dentry && hidden_sto_dir_dentry->d_inode)
++                              fist_copy_attr_atime(dir, hidden_sto_dir_dentry->d_inode);
++                      else
++                              fist_copy_attr_atime(dir, hidden_dir_dentry->d_inode);
++
++                      dtopd(dentry)->state = NON_EXISTANT;
++                      dtohd(dentry) = hidden_dentry;
++                      dtohd2(dentry) = hidden_sto_dentry;
++                      d_add(dentry, NULL);
++                      goto out;
++              }
++
++      /* if we get to here, were in an invalid state. bad. */
++      printk(KERN_CRIT "mini_fo_lookup: ERROR, meta data corruption detected.\n");
++
++      /* end state checking */
++ out_free:
++      d_drop(dentry);         /* so that our bad dentry will get destroyed */
++      kfree(dtopd(dentry));
++      __dtopd(dentry) = NULL; /* be safe */
++
++ out_dput:
++      if(hidden_dentry)
++              dput(hidden_dentry);
++      if(hidden_sto_dentry)
++              dput(hidden_sto_dentry); /* drops usage count and marks for release */
++
++ out:
++      /* initalize wol if file exists and is directory */
++      if(dentry->d_inode) {
++              if(S_ISDIR(dentry->d_inode->i_mode)) {
++                      itopd(dentry->d_inode)->deleted_list_size = -1;
++                      itopd(dentry->d_inode)->renamed_list_size = -1;
++                      meta_build_lists(dentry);
++              }
++      }
++      return ERR_PTR(err);
++}
++
++
++STATIC int
++mini_fo_link(dentry_t *old_dentry, inode_t *dir, dentry_t *new_dentry)
++{
++      int err;
++      dentry_t *hidden_old_dentry;
++      dentry_t *hidden_new_dentry;
++      dentry_t *hidden_dir_dentry;
++
++
++      check_mini_fo_dentry(old_dentry);
++      check_mini_fo_dentry(new_dentry);
++      check_mini_fo_inode(dir);
++
++      /* no links to directorys and existing targets target allowed */
++      if(S_ISDIR(old_dentry->d_inode->i_mode) ||
++         is_mini_fo_existant(new_dentry)) {
++              err = -EPERM;
++              goto out;
++      }
++
++      /* bring it directly from unmod to del_rew */
++      if(dtost(old_dentry) == UNMODIFIED) {
++              err = nondir_unmod_to_mod(old_dentry, 1);
++              if(err) {
++                      err = -EINVAL;
++                      goto out;
++              }
++              err = meta_add_d_entry(old_dentry->d_parent,
++                                     old_dentry->d_name.name,
++                                     old_dentry->d_name.len);
++              if(err) {
++                      err = -EINVAL;
++                      goto out;
++              }
++              dput(dtohd(old_dentry));
++              dtohd(old_dentry) = NULL;
++              dtost(old_dentry) = DEL_REWRITTEN;
++      }
++
++      err = get_neg_sto_dentry(new_dentry);
++      if(err) {
++              err = -EINVAL;
++              goto out;
++      }
++
++      hidden_old_dentry = dtohd2(old_dentry);
++      hidden_new_dentry = dtohd2(new_dentry);
++
++      dget(hidden_old_dentry);
++      dget(hidden_new_dentry);
++
++      /* was: hidden_dir_dentry = lock_parent(hidden_new_dentry); */
++      hidden_dir_dentry = dget(hidden_new_dentry->d_parent);
++#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,16)
++      mutex_lock(&hidden_dir_dentry->d_inode->i_mutex);
++#else
++      down(&hidden_dir_dentry->d_inode->i_sem);
++#endif
++
++      err = vfs_link(hidden_old_dentry,
++                     hidden_dir_dentry->d_inode,
++                     hidden_new_dentry);
++      if (err || !hidden_new_dentry->d_inode)
++              goto out_lock;
++
++      dtost(new_dentry) = CREATED;
++      err = mini_fo_tri_interpose(NULL, hidden_new_dentry, new_dentry, dir->i_sb, 0);
++      if (err)
++              goto out_lock;
++
++      fist_copy_attr_timesizes(dir, hidden_new_dentry->d_inode);
++      /* propagate number of hard-links */
++      old_dentry->d_inode->i_nlink = itohi2(old_dentry->d_inode)->i_nlink;
++
++ out_lock:
++      /* was: unlock_dir(hidden_dir_dentry); */
++#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,16)
++      mutex_unlock(&hidden_dir_dentry->d_inode->i_mutex);
++#else
++      up(&hidden_dir_dentry->d_inode->i_sem);
++#endif
++      dput(hidden_dir_dentry);
++
++      dput(hidden_new_dentry);
++      dput(hidden_old_dentry);
++      if (!new_dentry->d_inode)
++              d_drop(new_dentry);
++
++ out:
++      return err;
++}
++
++
++STATIC int
++mini_fo_unlink(inode_t *dir, dentry_t *dentry)
++{
++      int err = 0;
++
++      dget(dentry);
++      if(dtopd(dentry)->state == MODIFIED) {
++              err = nondir_mod_to_del(dentry);
++              goto out;
++      }
++      else if(dtopd(dentry)->state == UNMODIFIED) {
++              err = nondir_unmod_to_del(dentry);
++              goto out;
++      }
++      else if(dtopd(dentry)->state == CREATED) {
++              err = nondir_creat_to_del(dentry);
++              goto out;
++      }
++      else if(dtopd(dentry)->state == DEL_REWRITTEN) {
++              err = nondir_del_rew_to_del(dentry);
++              goto out;
++      }
++
++      printk(KERN_CRIT "mini_fo_unlink: ERROR, invalid state detected.\n");
++
++ out:
++      fist_copy_attr_times(dir, itohi2(dentry->d_parent->d_inode));
++
++      if(!err) {
++              /* is this causing my pain? d_delete(dentry); */
++              d_drop(dentry);
++      }
++
++      dput(dentry);
++      return err;
++}
++
++
++STATIC int
++mini_fo_symlink(inode_t *dir, dentry_t *dentry, const char *symname)
++{
++      int err=0;
++      dentry_t *hidden_sto_dentry;
++      dentry_t *hidden_sto_dir_dentry;
++#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,0)
++        umode_t mode;
++#endif
++
++      /* Fail if the symlink file exists */
++      if(!(dtost(dentry) == DELETED ||
++           dtost(dentry) == NON_EXISTANT)) {
++              err = -EEXIST;
++              goto out;
++      }
++
++      err = get_neg_sto_dentry(dentry);
++      if(err) {
++              err = -EINVAL;
++              goto out;
++      }
++      hidden_sto_dentry = dtohd2(dentry);
++
++      dget(hidden_sto_dentry);
++      /* was: hidden_sto_dir_dentry = lock_parent(hidden_sto_dentry); */
++      hidden_sto_dir_dentry = dget(hidden_sto_dentry->d_parent);
++#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,16)
++      mutex_lock(&hidden_sto_dir_dentry->d_inode->i_mutex);
++#else
++      down(&hidden_sto_dir_dentry->d_inode->i_sem);
++#endif
++
++#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,0)
++      mode = S_IALLUGO;
++      err = vfs_symlink(hidden_sto_dir_dentry->d_inode,
++                        hidden_sto_dentry, symname, mode);
++#else
++      err = vfs_symlink(hidden_sto_dir_dentry->d_inode,
++                        hidden_sto_dentry,
++                        symname);
++#endif
++      if (err || !hidden_sto_dentry->d_inode)
++                goto out_lock;
++
++        if(dtost(dentry) == DELETED) {
++                dtost(dentry) = DEL_REWRITTEN;
++                err = mini_fo_tri_interpose(NULL, hidden_sto_dentry, dentry, dir->i_sb, 0);
++                if(err)
++                        goto out_lock;
++        } else if(dtost(dentry) == NON_EXISTANT) {
++                dtost(dentry) = CREATED;
++                err = mini_fo_tri_interpose(dtohd(dentry), hidden_sto_dentry, dentry, dir->i_sb, 0);
++                if(err)
++                        goto out_lock;
++        }
++      fist_copy_attr_timesizes(dir, hidden_sto_dir_dentry->d_inode);
++
++ out_lock:
++        /* was: unlock_dir(hidden_sto_dir_dentry); */
++#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,16)
++      mutex_unlock(&hidden_sto_dir_dentry->d_inode->i_mutex);
++#else
++      up(&hidden_sto_dir_dentry->d_inode->i_sem);
++#endif
++      dput(hidden_sto_dir_dentry);
++
++        dput(hidden_sto_dentry);
++        if (!dentry->d_inode)
++                d_drop(dentry);
++ out:
++        return err;
++}
++
++STATIC int
++mini_fo_mkdir(inode_t *dir, dentry_t *dentry, int mode)
++{
++      int err;
++
++      err = create_sto_dir(dentry, mode);
++
++      check_mini_fo_dentry(dentry);
++
++      return err;
++}
++
++
++STATIC int
++mini_fo_rmdir(inode_t *dir, dentry_t *dentry)
++{
++      int err = 0;
++
++      dentry_t *hidden_sto_dentry;
++      dentry_t *hidden_sto_dir_dentry;
++      dentry_t *meta_dentry;
++      inode_t *hidden_sto_dir = NULL;
++
++      check_mini_fo_dentry(dentry);
++      check_mini_fo_inode(dir);
++
++      dget(dentry);
++      if(dtopd(dentry)->state == MODIFIED) {
++              /* XXX: disabled, because it does not bother to check files on
++               * the original filesystem - just a hack, but better than simply
++               * removing it without testing */
++              err = -EINVAL;
++              goto out;
++
++              hidden_sto_dir = itohi2(dir);
++              hidden_sto_dentry = dtohd2(dentry);
++
++              /* was:hidden_sto_dir_dentry = lock_parent(hidden_sto_dentry); */
++              hidden_sto_dir_dentry = dget(hidden_sto_dentry->d_parent);
++#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,16)
++              mutex_lock(&hidden_sto_dir_dentry->d_inode->i_mutex);
++#else
++              down(&hidden_sto_dir_dentry->d_inode->i_sem);
++#endif
++
++              /* Delete an old WOL file contained in the storage dir */
++              meta_dentry = lookup_one_len(META_FILENAME,
++                                           hidden_sto_dentry,
++                                           strlen(META_FILENAME));
++              if(meta_dentry->d_inode) {
++                      err = vfs_unlink(hidden_sto_dentry->d_inode, meta_dentry);
++                      dput(meta_dentry);
++                      if(!err)
++                              d_delete(meta_dentry);
++              }
++
++              err = vfs_rmdir(hidden_sto_dir, hidden_sto_dentry);
++              dput(hidden_sto_dentry);
++              if(!err)
++                      d_delete(hidden_sto_dentry);
++
++              /* propagate number of hard-links */
++              dentry->d_inode->i_nlink = itohi2(dentry->d_inode)->i_nlink;
++
++              dput(dtohd(dentry));
++
++              dtohd(dentry) = NULL;
++              dtopd(dentry)->state = DELETED;
++
++              /* carefull with R files */
++              if( __meta_is_r_entry(dir,
++                                    dentry->d_name.name,
++                                    dentry->d_name.len) == 1) {
++                      err = meta_remove_r_entry(dentry->d_parent,
++                                                dentry->d_name.name,
++                                                dentry->d_name.len);
++                      if(err) {
++                              printk(KERN_CRIT "mini_fo: rmdir: meta_remove_r_entry failed.\n");
++                              goto out;
++                      }
++              }
++              else {
++                      /* ok, add deleted file to META */
++                      meta_add_d_entry(dentry->d_parent,
++                                       dentry->d_name.name,
++                                       dentry->d_name.len);
++              }
++              /* was: unlock_dir(hidden_sto_dir_dentry); */
++#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,16)
++              mutex_unlock(&hidden_sto_dir_dentry->d_inode->i_mutex);
++#else
++              up(&hidden_sto_dir_dentry->d_inode->i_sem);
++#endif
++              dput(hidden_sto_dir_dentry);
++              goto out;
++      }
++      else if(dtopd(dentry)->state == UNMODIFIED) {
++              /* XXX: simply adding it to the delete list here is fscking dangerous!
++               * as a temporary hack, i will disable rmdir on unmodified directories
++               * for now.
++               */
++              err = -EINVAL;
++              goto out;
++
++              err = get_neg_sto_dentry(dentry);
++              if(err) {
++                      err = -EINVAL;
++                      goto out;
++              }
++
++              /* dput base dentry, this will relase the inode and free the
++               * dentry, as we will never need it again. */
++              dput(dtohd(dentry));
++              dtohd(dentry) = NULL;
++              dtopd(dentry)->state = DELETED;
++
++              /* add deleted file to META-file */
++              meta_add_d_entry(dentry->d_parent,
++                               dentry->d_name.name,
++                               dentry->d_name.len);
++              goto out;
++      }
++      else if(dtopd(dentry)->state == CREATED) {
++              hidden_sto_dir = itohi2(dir);
++              hidden_sto_dentry = dtohd2(dentry);
++
++              /* was: hidden_sto_dir_dentry = lock_parent(hidden_sto_dentry);*/
++              hidden_sto_dir_dentry = dget(hidden_sto_dentry->d_parent);
++
++#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,16)
++              mutex_lock(&hidden_sto_dir_dentry->d_inode->i_mutex);
++#else
++              down(&hidden_sto_dir_dentry->d_inode->i_sem);
++#endif
++
++              /* Delete an old WOL file contained in the storage dir */
++              meta_dentry = lookup_one_len(META_FILENAME,
++                                           hidden_sto_dentry,
++                                           strlen(META_FILENAME));
++              if(meta_dentry->d_inode) {
++                      /* is this necessary? dget(meta_dentry); */
++                      err = vfs_unlink(hidden_sto_dentry->d_inode,
++                                       meta_dentry);
++                      dput(meta_dentry);
++                      if(!err)
++                              d_delete(meta_dentry);
++              }
++
++              err = vfs_rmdir(hidden_sto_dir, hidden_sto_dentry);
++              dput(hidden_sto_dentry);
++              if(!err)
++                      d_delete(hidden_sto_dentry);
++
++              /* propagate number of hard-links */
++              dentry->d_inode->i_nlink = itohi2(dentry->d_inode)->i_nlink;
++              dtopd(dentry)->state = NON_EXISTANT;
++
++              /* was: unlock_dir(hidden_sto_dir_dentry); */
++#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,16)
++              mutex_unlock(&hidden_sto_dir_dentry->d_inode->i_mutex);
++#else
++              up(&hidden_sto_dir_dentry->d_inode->i_sem);
++#endif
++              dput(hidden_sto_dir_dentry);
++
++              goto out;
++      }
++      else if(dtopd(dentry)->state == DEL_REWRITTEN) {
++              hidden_sto_dir = itohi2(dir);
++              hidden_sto_dentry = dtohd2(dentry);
++
++              /* was: hidden_sto_dir_dentry = lock_parent(hidden_sto_dentry);*/
++              hidden_sto_dir_dentry = dget(hidden_sto_dentry->d_parent);
++
++#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,16)
++              mutex_lock(&hidden_sto_dir_dentry->d_inode->i_mutex);
++#else
++              down(&hidden_sto_dir_dentry->d_inode->i_sem);
++#endif
++
++              /* Delete an old WOL file contained in the storage dir */
++              meta_dentry = lookup_one_len(META_FILENAME,
++                                           hidden_sto_dentry,
++                                           strlen(META_FILENAME));
++              if(meta_dentry->d_inode) {
++                      /* is this necessary? dget(meta_dentry); */
++                      err = vfs_unlink(hidden_sto_dentry->d_inode,
++                                       meta_dentry);
++                      dput(meta_dentry);
++                      if(!err)
++                              d_delete(meta_dentry);
++              }
++
++              err = vfs_rmdir(hidden_sto_dir, hidden_sto_dentry);
++              dput(hidden_sto_dentry);
++              if(!err)
++                      d_delete(hidden_sto_dentry);
++
++              /* propagate number of hard-links */
++              dentry->d_inode->i_nlink = itohi2(dentry->d_inode)->i_nlink;
++              dtopd(dentry)->state = DELETED;
++              /* was: unlock_dir(hidden_sto_dir_dentry); */
++
++#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,16)
++              mutex_unlock(&hidden_sto_dir_dentry->d_inode->i_mutex);
++#else
++              up(&hidden_sto_dir_dentry->d_inode->i_sem);
++#endif
++              dput(hidden_sto_dir_dentry);
++              goto out;
++      }
++
++      printk(KERN_CRIT "mini_fo_rmdir: ERROR, invalid state detected.\n");
++
++ out:
++      if(!err) {
++              d_drop(dentry);
++      }
++
++      fist_copy_attr_times(dir, itohi2(dentry->d_parent->d_inode));
++      dput(dentry);
++
++      return err;
++}
++
++
++STATIC int
++#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,0)
++mini_fo_mknod(inode_t *dir, dentry_t *dentry, int mode, dev_t dev)
++#else
++mini_fo_mknod(inode_t *dir, dentry_t *dentry, int mode, int dev)
++#endif
++{
++      int err = 0;
++
++      check_mini_fo_dentry(dentry);
++
++      err = create_sto_nod(dentry, mode, dev);
++      if(err) {
++              printk(KERN_CRIT "mini_fo_mknod: creating sto nod failed.\n");
++              err = -EINVAL;
++      }
++
++      check_mini_fo_dentry(dentry);
++      return err;
++}
++
++
++STATIC int
++mini_fo_rename(inode_t *old_dir, dentry_t *old_dentry,
++             inode_t *new_dir, dentry_t *new_dentry)
++{
++      /* dispatch */
++      if(S_ISDIR(old_dentry->d_inode->i_mode))
++              return rename_directory(old_dir, old_dentry, new_dir, new_dentry);
++      return rename_nondir(old_dir, old_dentry, new_dir, new_dentry);
++
++}
++
++int rename_directory(inode_t *old_dir, dentry_t *old_dentry,
++                   inode_t *new_dir, dentry_t *new_dentry)
++{
++      int err, bpath_len;
++      char *bpath;
++
++      dentry_t *hidden_old_dentry;
++      dentry_t *hidden_new_dentry;
++      dentry_t *hidden_old_dir_dentry;
++      dentry_t *hidden_new_dir_dentry;
++
++      err = 0;
++      bpath = NULL;
++      bpath_len = 0;
++
++      /* this is a test, chuck out if it works */
++      if(!(dtopd(new_dentry)->state == DELETED ||
++           dtopd(new_dentry)->state == NON_EXISTANT)) {
++              printk(KERN_CRIT "mini_fo: rename_directory: \
++                                  uh, ah, new_dentry not negative.\n");
++              /* return -1; */
++      }
++
++      /* state = UNMODIFIED */
++      if(dtopd(old_dentry)->state == UNMODIFIED) {
++              err = dir_unmod_to_mod(old_dentry);
++              if (err)
++                      goto out;
++      }
++
++      /* state = MODIFIED */
++      if(dtopd(old_dentry)->state == MODIFIED) {
++              bpath = meta_check_r_entry(old_dentry->d_parent,
++                                         old_dentry->d_name.name,
++                                         old_dentry->d_name.len);
++              if(bpath) {
++                      err = meta_remove_r_entry(old_dentry->d_parent,
++                                                old_dentry->d_name.name,
++                                                old_dentry->d_name.len);
++                      if(err) {
++                              printk(KERN_CRIT "mini_fo: rename_directory:\
++                                                   meta_remove_r_entry \
++                                                  failed.\n");
++                              goto out;
++                      }
++                      err = meta_add_r_entry(new_dentry->d_parent,
++                                             bpath,
++                                             strlen(bpath),
++                                             new_dentry->d_name.name,
++                                             new_dentry->d_name.len);
++                      kfree(bpath);
++              }
++              else {/* wol it */
++                      err = meta_add_d_entry(old_dentry->d_parent,
++                                             old_dentry->d_name.name,
++                                             old_dentry->d_name.len);
++                      if (err)
++                              goto out;
++                      /* put it on rename list */
++                      err = get_mini_fo_bpath(old_dentry,
++                                              &bpath,
++                                              &bpath_len);
++                      if (err)
++                              goto out;
++                      err = meta_add_r_entry(new_dentry->d_parent,
++                                             bpath, bpath_len,
++                                             new_dentry->d_name.name,
++                                             new_dentry->d_name.len);
++                      if (err)
++                              goto out;
++              }
++              /* no state change, MODIFIED stays MODIFIED */
++      }
++      /* state = CREATED */
++      if(dtopd(old_dentry)->state == CREATED ||
++         dtopd(old_dentry)->state == DEL_REWRITTEN) {
++              if(dtohd(old_dentry))
++                      dput(dtohd(old_dentry));
++
++              if(dtopd(new_dentry)->state == DELETED) {
++                      dtopd(old_dentry)->state = DEL_REWRITTEN;
++                      dtohd(old_dentry) = NULL;
++              }
++              else if(dtopd(new_dentry)->state == NON_EXISTANT) {
++                      dtopd(old_dentry)->state = CREATED;
++                      /* steal new dentry's neg. base dentry */
++                      dtohd(old_dentry) = dtohd(new_dentry);
++                      dtohd(new_dentry) = NULL;
++              }
++      }
++      if(dtopd(new_dentry)->state == UNMODIFIED ||
++         dtopd(new_dentry)->state == NON_EXISTANT) {
++              err = get_neg_sto_dentry(new_dentry);
++              if(err)
++                      goto out;
++      }
++
++      /* now move sto file */
++      hidden_old_dentry = dtohd2(old_dentry);
++      hidden_new_dentry = dtohd2(new_dentry);
++
++      dget(hidden_old_dentry);
++      dget(hidden_new_dentry);
++
++      hidden_old_dir_dentry = dget(hidden_old_dentry->d_parent);
++      hidden_new_dir_dentry = dget(hidden_new_dentry->d_parent);
++      double_lock(hidden_old_dir_dentry, hidden_new_dir_dentry);
++
++      err = vfs_rename(hidden_old_dir_dentry->d_inode, hidden_old_dentry,
++                       hidden_new_dir_dentry->d_inode, hidden_new_dentry);
++      if(err)
++              goto out_lock;
++
++      fist_copy_attr_all(new_dir, hidden_new_dir_dentry->d_inode);
++      if (new_dir != old_dir)
++              fist_copy_attr_all(old_dir,
++                                 hidden_old_dir_dentry->d_inode);
++
++ out_lock:
++      /* double_unlock will dput the new/old parent dentries
++       * whose refcnts were incremented via get_parent above. */
++      double_unlock(hidden_old_dir_dentry, hidden_new_dir_dentry);
++      dput(hidden_new_dentry);
++      dput(hidden_old_dentry);
++
++ out:
++      return err;
++}
++
++int rename_nondir(inode_t *old_dir, dentry_t *old_dentry,
++                inode_t *new_dir, dentry_t *new_dentry)
++{
++      int err=0;
++
++      check_mini_fo_dentry(old_dentry);
++      check_mini_fo_dentry(new_dentry);
++      check_mini_fo_inode(old_dir);
++      check_mini_fo_inode(new_dir);
++
++      /* state: UNMODIFIED */
++      if(dtost(old_dentry) == UNMODIFIED) {
++              err = nondir_unmod_to_mod(old_dentry, 1);
++              if(err) {
++                      err = -EINVAL;
++                      goto out;
++              }
++      }
++
++      /* the easy states */
++      if(exists_in_storage(old_dentry)) {
++
++              dentry_t *hidden_old_dentry;
++              dentry_t *hidden_new_dentry;
++              dentry_t *hidden_old_dir_dentry;
++              dentry_t *hidden_new_dir_dentry;
++
++              /* if old file is MODIFIED, add it to the deleted_list */
++              if(dtopd(old_dentry)->state == MODIFIED) {
++                      meta_add_d_entry(old_dentry->d_parent,
++                                       old_dentry->d_name.name,
++                                       old_dentry->d_name.len);
++
++                      dput(dtohd(old_dentry));
++              }
++              /* if old file is CREATED, we only release the base dentry */
++              if(dtopd(old_dentry)->state == CREATED) {
++                      if(dtohd(old_dentry))
++                              dput(dtohd(old_dentry));
++              }
++
++              /* now setup the new states (depends on new_dentry state) */
++              /* new dentry state =  MODIFIED */
++              if(dtopd(new_dentry)->state == MODIFIED) {
++                      meta_add_d_entry(new_dentry->d_parent,
++                                       new_dentry->d_name.name,
++                                       new_dentry->d_name.len);
++
++                      /* new dentry will be d_put'ed later by the vfs
++                       * so don't do it here
++                       * dput(dtohd(new_dentry));
++                       */
++                      dtohd(old_dentry) = NULL;
++                      dtopd(old_dentry)->state = DEL_REWRITTEN;
++              }
++              /* new dentry state =  UNMODIFIED */
++              else if(dtopd(new_dentry)->state == UNMODIFIED) {
++                      if(get_neg_sto_dentry(new_dentry))
++                              return -EINVAL;
++
++                      meta_add_d_entry(new_dentry->d_parent,
++                                       new_dentry->d_name.name,
++                                       new_dentry->d_name.len);
++
++                      /* is this right??? */
++                      /*dput(dtohd(new_dentry));*/
++                      dtohd(old_dentry) = NULL;
++                      dtopd(old_dentry)->state = DEL_REWRITTEN;
++              }
++              /* new dentry state =  CREATED */
++              else if(dtopd(new_dentry)->state == CREATED) {
++                      /* we keep the neg. base dentry (if exists) */
++                      dtohd(old_dentry) = dtohd(new_dentry);
++                      /* ...and set it to Null, or we'll get
++                       * dcache.c:345 if it gets dput twice... */
++                      dtohd(new_dentry) = NULL;
++                      dtopd(old_dentry)->state = CREATED;
++              }
++              /* new dentry state =  NON_EXISTANT */
++              else if(dtopd(new_dentry)->state == NON_EXISTANT) {
++                      if(get_neg_sto_dentry(new_dentry))
++                              return -EINVAL;
++
++                      /* we keep the neg. base dentry (if exists) */
++                      dtohd(old_dentry) = dtohd(new_dentry);
++                      /* ...and set it to Null, or we'll get
++                       * Dr. dcache.c:345 if it gets dput twice... */
++                      dtohd(new_dentry) = NULL;
++                      dtopd(old_dentry)->state = CREATED;
++              }
++              /* new dentry state =  DEL_REWRITTEN or DELETED */
++              else if(dtopd(new_dentry)->state == DEL_REWRITTEN ||
++                      dtopd(new_dentry)->state == DELETED) {
++                      dtohd(old_dentry) = NULL;
++                      dtopd(old_dentry)->state = DEL_REWRITTEN;
++              }
++              else { /* not possible, uhh, ahh */
++                      printk(KERN_CRIT
++                             "mini_fo: rename_reg_file: invalid state detected [1].\n");
++                      return -1;
++              }
++
++              /* now we definitely have a sto file */
++              hidden_old_dentry = dtohd2(old_dentry);
++              hidden_new_dentry = dtohd2(new_dentry);
++
++              dget(hidden_old_dentry);
++              dget(hidden_new_dentry);
++
++              hidden_old_dir_dentry = dget(hidden_old_dentry->d_parent);
++              hidden_new_dir_dentry = dget(hidden_new_dentry->d_parent);
++              double_lock(hidden_old_dir_dentry, hidden_new_dir_dentry);
++
++              err = vfs_rename(hidden_old_dir_dentry->d_inode,
++                               hidden_old_dentry,
++                               hidden_new_dir_dentry->d_inode,
++                               hidden_new_dentry);
++              if(err)
++                      goto out_lock;
++
++              fist_copy_attr_all(new_dir, hidden_new_dir_dentry->d_inode);
++              if (new_dir != old_dir)
++                      fist_copy_attr_all(old_dir, hidden_old_dir_dentry->d_inode);
++
++      out_lock:
++              /* double_unlock will dput the new/old parent dentries
++               * whose refcnts were incremented via get_parent above.
++               */
++              double_unlock(hidden_old_dir_dentry, hidden_new_dir_dentry);
++              dput(hidden_new_dentry);
++              dput(hidden_old_dentry);
++      out:
++              return err;
++      }
++      else { /* invalid state */
++              printk(KERN_CRIT "mini_fo: rename_reg_file: ERROR: invalid state detected [2].\n");
++              return -1;
++      }
++}
++
++
++STATIC int
++mini_fo_readlink(dentry_t *dentry, char *buf, int bufsiz)
++{
++      int err=0;
++      dentry_t *hidden_dentry = NULL;
++
++      if(dtohd2(dentry) && dtohd2(dentry)->d_inode) {
++              hidden_dentry = dtohd2(dentry);
++      } else if(dtohd(dentry) && dtohd(dentry)->d_inode) {
++              hidden_dentry = dtohd(dentry);
++      } else {
++              goto out;
++      }
++
++      if (!hidden_dentry->d_inode->i_op ||
++          !hidden_dentry->d_inode->i_op->readlink) {
++              err = -EINVAL;          goto out;
++      }
++
++      err = hidden_dentry->d_inode->i_op->readlink(hidden_dentry,
++                                                   buf,
++                                                   bufsiz);
++      if (err > 0)
++              fist_copy_attr_atime(dentry->d_inode, hidden_dentry->d_inode);
++
++ out:
++      return err;
++}
++
++
++#if LINUX_VERSION_CODE < KERNEL_VERSION(2,6,13)
++static int mini_fo_follow_link(dentry_t *dentry, struct nameidata *nd)
++#else
++static void* mini_fo_follow_link(dentry_t *dentry, struct nameidata *nd)
++#endif
++{
++      char *buf;
++      int len = PAGE_SIZE, err;
++      mm_segment_t old_fs;
++
++      /* in 2.6 this is freed by mini_fo_put_link called by __do_follow_link */
++      buf = kmalloc(len, GFP_KERNEL);
++      if (!buf) {
++              err = -ENOMEM;
++              goto out;
++      }
++
++      /* read the symlink, and then we will follow it */
++      old_fs = get_fs();
++      set_fs(KERNEL_DS);
++      err = dentry->d_inode->i_op->readlink(dentry, buf, len);
++      set_fs(old_fs);
++      if (err < 0) {
++              kfree(buf);
++              buf = NULL;
++              goto out;
++      }
++      buf[err] = 0;
++#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,0)
++        nd_set_link(nd, buf);
++        err = 0;
++#else
++      err = vfs_follow_link(nd, buf);
++#endif
++
++ out:
++#if LINUX_VERSION_CODE < KERNEL_VERSION(2,6,0)
++      kfree(buf);
++#endif
++
++#if LINUX_VERSION_CODE < KERNEL_VERSION(2,6,13)
++        return err;
++#else
++        return ERR_PTR(err);
++#endif
++}
++
++STATIC
++#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,0)
++#if LINUX_VERSION_CODE < KERNEL_VERSION(2,6,13)
++void mini_fo_put_link(struct dentry *dentry, struct nameidata *nd)
++#else
++void mini_fo_put_link(struct dentry *dentry, struct nameidata *nd, void *cookie)
++#endif
++{
++        char *link;
++        link = nd_get_link(nd);
++        kfree(link);
++}
++#endif
++
++STATIC int
++#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,0)
++mini_fo_permission(inode_t *inode, int mask, struct nameidata *nd)
++#else
++mini_fo_permission(inode_t *inode, int mask)
++#endif
++{
++      inode_t *hidden_inode;
++      int mode;
++      int err;
++
++      if(itohi2(inode)) {
++              hidden_inode = itohi2(inode);
++      } else {
++              hidden_inode = itohi(inode);
++      }
++      mode = inode->i_mode;
++
++      /* not really needed, as permission handles everything:
++       *      err = vfs_permission(inode, mask);
++       *      if (err)
++       *              goto out;
++       */
++
++#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,0)
++      err = permission(hidden_inode, mask, nd);
++#else
++      err = permission(hidden_inode, mask);
++#endif
++
++      /*  out: */
++      return err;
++}
++
++#if LINUX_VERSION_CODE < KERNEL_VERSION(2,6,0)
++STATIC int
++mini_fo_inode_revalidate(dentry_t *dentry)
++{
++      int err = 0;
++      dentry_t *hidden_dentry;
++      inode_t *hidden_inode;
++
++      ASSERT(dentry->d_inode);
++      ASSERT(itopd(dentry->d_inode));
++
++      if(itohi2(dentry->d_inode)) {
++                hidden_dentry = dtohd2(dentry);
++              hidden_inode = hidden_dentry->d_inode;
++      } else if(itohi(dentry->d_inode)) {
++                hidden_dentry = dtohd(dentry);
++              hidden_inode = hidden_dentry->d_inode;
++      } else {
++                printk(KERN_CRIT "mini_fo_inode_revalidate: ERROR, invalid state detected.\n");
++                err = -ENOENT;
++                goto out;
++        }
++      if (hidden_inode && hidden_inode->i_op && hidden_inode->i_op->revalidate){
++              err = hidden_inode->i_op->revalidate(hidden_dentry);
++              if (err)
++                      goto out;
++      }
++      fist_copy_attr_all(dentry->d_inode, hidden_inode);
++ out:
++      return err;
++}
++#endif
++
++STATIC int
++mini_fo_setattr(dentry_t *dentry, struct iattr *ia)
++{
++      int err = 0;
++
++      check_mini_fo_dentry(dentry);
++
++      if(!is_mini_fo_existant(dentry)) {
++              printk(KERN_CRIT "mini_fo_setattr: ERROR, invalid state detected [1].\n");
++              goto out;
++      }
++
++      if(dtost(dentry) == UNMODIFIED) {
++              if(!IS_COPY_FLAG(ia->ia_valid))
++                      goto out; /* we ignore these changes to base */
++
++              if(S_ISDIR(dentry->d_inode->i_mode)) {
++                      err = dir_unmod_to_mod(dentry);
++              } else {
++                      /* we copy contents if file is not beeing truncated */
++                      if(S_ISREG(dentry->d_inode->i_mode) &&
++                         !(ia->ia_size == 0 && (ia->ia_valid & ATTR_SIZE))) {
++                              err = nondir_unmod_to_mod(dentry, 1);
++                      } else
++                              err = nondir_unmod_to_mod(dentry, 0);
++              }
++              if(err) {
++                      err = -EINVAL;
++                      printk(KERN_CRIT "mini_fo_setattr: ERROR changing states.\n");
++                      goto out;
++              }
++      }
++      if(!exists_in_storage(dentry)) {
++              printk(KERN_CRIT "mini_fo_setattr: ERROR, invalid state detected [2].\n");
++              err = -EINVAL;
++              goto out;
++      }
++      ASSERT(dentry->d_inode);
++      ASSERT(dtohd2(dentry));
++      ASSERT(itopd(dentry->d_inode));
++      ASSERT(itohi2(dentry->d_inode));
++
++      err = notify_change(dtohd2(dentry), ia);
++      fist_copy_attr_all(dentry->d_inode, itohi2(dentry->d_inode));
++ out:
++      return err;
++}
++
++#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,0)
++STATIC int
++mini_fo_getattr(struct vfsmount *mnt, struct dentry *dentry, struct kstat *stat)
++{
++      int err = 0;
++        dentry_t *hidden_dentry;
++
++      ASSERT(dentry->d_inode);
++      ASSERT(itopd(dentry->d_inode));
++
++      if(itohi2(dentry->d_inode)) {
++                hidden_dentry = dtohd2(dentry);
++      } else if(itohi(dentry->d_inode)) {
++                hidden_dentry = dtohd(dentry);
++      } else {
++                printk(KERN_CRIT "mini_fo_getattr: ERROR, invalid state detected.\n");
++                err = -ENOENT;
++                goto out;
++        }
++      fist_copy_attr_all(dentry->d_inode, hidden_dentry->d_inode);
++
++      ASSERT(hidden_dentry);
++      ASSERT(hidden_dentry->d_inode);
++      ASSERT(hidden_dentry->d_inode->i_op);
++
++      generic_fillattr(dentry->d_inode, stat);
++      if (!stat->blksize) {
++              struct super_block *s = hidden_dentry->d_inode->i_sb;
++              unsigned blocks;
++              blocks = (stat->size+s->s_blocksize-1) >> s->s_blocksize_bits;
++              stat->blocks = (s->s_blocksize / 512) * blocks;
++              stat->blksize = s->s_blocksize;
++      }
++ out:
++        return err;
++}
++#endif
++
++#if defined(XATTR) && (LINUX_VERSION_CODE >= KERNEL_VERSION(2,4,20))
++#if 0 /* no xattr_alloc() and xattr_free() */
++/* This is lifted from fs/xattr.c */
++static void *
++xattr_alloc(size_t size, size_t limit)
++{
++      void *ptr;
++
++      if (size > limit)
++              return ERR_PTR(-E2BIG);
++
++      if (!size)      /* size request, no buffer is needed */
++              return NULL;
++      else if (size <= PAGE_SIZE)
++              ptr = kmalloc((unsigned long) size, GFP_KERNEL);
++      else
++              ptr = vmalloc((unsigned long) size);
++      if (!ptr)
++              return ERR_PTR(-ENOMEM);
++      return ptr;
++}
++
++static void
++xattr_free(void *ptr, size_t size)
++{
++      if (!size)      /* size request, no buffer was needed */
++              return;
++      else if (size <= PAGE_SIZE)
++              kfree(ptr);
++      else
++              vfree(ptr);
++}
++#endif /* no xattr_alloc() and xattr_free() */
++
++/* BKL held by caller.
++ * dentry->d_inode->i_sem down
++ */
++STATIC int
++mini_fo_getxattr(struct dentry *dentry, const char *name, void *value, size_t size) {
++      struct dentry *hidden_dentry = NULL;
++      int err = -EOPNOTSUPP;
++      /* Define these anyway so we don't need as much ifdef'ed code. */
++      char *encoded_name = NULL;
++      char *encoded_value = NULL;
++
++      check_mini_fo_dentry(dentry);
++
++      if(exists_in_storage(dentry))
++              hidden_dentry = dtohd2(dentry);
++      else
++              hidden_dentry = dtohd(dentry);
++
++      ASSERT(hidden_dentry);
++      ASSERT(hidden_dentry->d_inode);
++      ASSERT(hidden_dentry->d_inode->i_op);
++
++      if (hidden_dentry->d_inode->i_op->getxattr) {
++              encoded_name = (char *)name;
++              encoded_value = (char *)value;
++
++#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,16)
++              mutex_lock(&hidden_dentry->d_inode->i_mutex);
++#else
++              down(&hidden_dentry->d_inode->i_sem);
++#endif
++              /* lock_kernel() already done by caller. */
++              err = hidden_dentry->d_inode->i_op->getxattr(hidden_dentry, encoded_name, encoded_value, size);
++              /* unlock_kernel() will be done by caller. */
++#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,16)
++              mutex_lock(&hidden_dentry->d_inode->i_mutex);
++#else
++              up(&hidden_dentry->d_inode->i_sem);
++#endif
++      }
++      return err;
++}
++
++/* BKL held by caller.
++ * dentry->d_inode->i_sem down
++ */
++STATIC int
++#if ((LINUX_VERSION_CODE >= KERNEL_VERSION(2,4,21) \
++     && LINUX_VERSION_CODE <= KERNEL_VERSION(2,4,23)) \
++     || LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,0))
++mini_fo_setxattr(struct dentry *dentry, const char *name,
++               const void *value, size_t size, int flags)
++#else
++mini_fo_setxattr(struct dentry *dentry, const char *name,
++               void *value, size_t size, int flags)
++#endif
++
++{
++      struct dentry *hidden_dentry = NULL;
++      int err = -EOPNOTSUPP;
++
++      /* Define these anyway, so we don't have as much ifdef'ed code. */
++      char *encoded_value = NULL;
++      char *encoded_name = NULL;
++
++      check_mini_fo_dentry(dentry);
++
++      if(exists_in_storage(dentry))
++              hidden_dentry = dtohd2(dentry);
++      else
++              hidden_dentry = dtohd(dentry);
++
++      ASSERT(hidden_dentry);
++      ASSERT(hidden_dentry->d_inode);
++      ASSERT(hidden_dentry->d_inode->i_op);
++
++      if (hidden_dentry->d_inode->i_op->setxattr) {
++              encoded_name = (char *)name;
++              encoded_value = (char *)value;
++
++#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,16)
++              mutex_lock(&hidden_dentry->d_inode->i_mutex);
++#else
++              down(&hidden_dentry->d_inode->i_sem);
++#endif
++              /* lock_kernel() already done by caller. */
++              err = hidden_dentry->d_inode->i_op->setxattr(hidden_dentry, encoded_name, encoded_value, size, flags);
++              /* unlock_kernel() will be done by caller. */
++#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,16)
++              mutex_unlock(&hidden_dentry->d_inode->i_mutex);
++#else
++              up(&hidden_dentry->d_inode->i_sem);
++#endif
++      }
++      return err;
++}
++
++/* BKL held by caller.
++ * dentry->d_inode->i_sem down
++ */
++STATIC int
++mini_fo_removexattr(struct dentry *dentry, const char *name) {
++      struct dentry *hidden_dentry = NULL;
++      int err = -EOPNOTSUPP;
++      char *encoded_name;
++
++      check_mini_fo_dentry(dentry);
++
++      if(exists_in_storage(dentry))
++              hidden_dentry = dtohd2(dentry);
++      else
++              hidden_dentry = dtohd(dentry);
++
++      ASSERT(hidden_dentry);
++      ASSERT(hidden_dentry->d_inode);
++      ASSERT(hidden_dentry->d_inode->i_op);
++
++      if (hidden_dentry->d_inode->i_op->removexattr) {
++              encoded_name = (char *)name;
++
++#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,16)
++              mutex_lock(&hidden_dentry->d_inode->i_mutex);
++#else
++              down(&hidden_dentry->d_inode->i_sem);
++#endif
++              /* lock_kernel() already done by caller. */
++              err = hidden_dentry->d_inode->i_op->removexattr(hidden_dentry, encoded_name);
++              /* unlock_kernel() will be done by caller. */
++#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,16)
++              mutex_unlock(&hidden_dentry->d_inode->i_mutex);
++#else
++              up(&hidden_dentry->d_inode->i_sem);
++#endif
++      }
++      return err;
++}
++
++/* BKL held by caller.
++ * dentry->d_inode->i_sem down
++ */
++STATIC int
++mini_fo_listxattr(struct dentry *dentry, char *list, size_t size) {
++      struct dentry *hidden_dentry = NULL;
++      int err = -EOPNOTSUPP;
++      char *encoded_list = NULL;
++
++      check_mini_fo_dentry(dentry);
++
++      if(exists_in_storage(dentry))
++              hidden_dentry = dtohd2(dentry);
++      else
++              hidden_dentry = dtohd(dentry);
++
++      ASSERT(hidden_dentry);
++      ASSERT(hidden_dentry->d_inode);
++      ASSERT(hidden_dentry->d_inode->i_op);
++
++      if (hidden_dentry->d_inode->i_op->listxattr) {
++              encoded_list = list;
++
++#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,16)
++              mutex_lock(&hidden_dentry->d_inode->i_mutex);
++#else
++              down(&hidden_dentry->d_inode->i_sem);
++#endif
++              /* lock_kernel() already done by caller. */
++              err = hidden_dentry->d_inode->i_op->listxattr(hidden_dentry, encoded_list, size);
++              /* unlock_kernel() will be done by caller. */
++#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,16)
++              mutex_unlock(&hidden_dentry->d_inode->i_mutex);
++#else
++              up(&hidden_dentry->d_inode->i_sem);
++#endif
++      }
++      return err;
++}
++# endif /* defined(XATTR) && (LINUX_VERSION_CODE >= KERNEL_VERSION(2,4,20)) */
++
++struct inode_operations mini_fo_symlink_iops =
++      {
++              readlink:       mini_fo_readlink,
++              follow_link: mini_fo_follow_link,
++              /* mk: permission:      mini_fo_permission, */
++#if LINUX_VERSION_CODE < KERNEL_VERSION(2,6,0)
++              revalidate:     mini_fo_inode_revalidate,
++#endif
++              setattr:        mini_fo_setattr,
++#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,0)
++              getattr:        mini_fo_getattr,
++              put_link:       mini_fo_put_link,
++#endif
++
++#if defined(XATTR) && (LINUX_VERSION_CODE >= KERNEL_VERSION(2,4,20))
++              setxattr:       mini_fo_setxattr,
++              getxattr:       mini_fo_getxattr,
++              listxattr:      mini_fo_listxattr,
++              removexattr: mini_fo_removexattr
++# endif /* defined(XATTR) && (LINUX_VERSION_CODE >= KERNEL_VERSION(2,4,20)) */
++      };
++
++struct inode_operations mini_fo_dir_iops =
++      {
++              create: mini_fo_create,
++              lookup: mini_fo_lookup,
++              link:   mini_fo_link,
++              unlink: mini_fo_unlink,
++              symlink:        mini_fo_symlink,
++              mkdir:  mini_fo_mkdir,
++              rmdir:  mini_fo_rmdir,
++              mknod:  mini_fo_mknod,
++              rename: mini_fo_rename,
++              /* no readlink/follow_link for non-symlinks */
++              // off because we have setattr
++              //    truncate: mini_fo_truncate,
++              /* mk:permission:       mini_fo_permission, */
++#if LINUX_VERSION_CODE < KERNEL_VERSION(2,6,0)
++              revalidate:     mini_fo_inode_revalidate,
++#endif
++#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,0)
++              getattr:        mini_fo_getattr,
++#endif
++              setattr:        mini_fo_setattr,
++#if defined(XATTR) && (LINUX_VERSION_CODE >= KERNEL_VERSION(2,4,20))
++              setxattr:       mini_fo_setxattr,
++              getxattr:       mini_fo_getxattr,
++              listxattr:      mini_fo_listxattr,
++              removexattr: mini_fo_removexattr
++# endif /* XATTR && LINUX_VERSION_CODE >= KERNEL_VERSION(2,4,20) */
++      };
++
++struct inode_operations mini_fo_main_iops =
++      {
++              /* permission:  mini_fo_permission, */
++#if LINUX_VERSION_CODE < KERNEL_VERSION(2,6,0)
++              revalidate:     mini_fo_inode_revalidate,
++#endif
++              setattr:        mini_fo_setattr,
++
++#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,0)
++              getattr:        mini_fo_getattr,
++#endif
++#if defined(XATTR) && (LINUX_VERSION_CODE >= KERNEL_VERSION(2,4,20))
++              setxattr:       mini_fo_setxattr,
++              getxattr:       mini_fo_getxattr,
++              listxattr:      mini_fo_listxattr,
++              removexattr:    mini_fo_removexattr
++# endif /* XATTR && LINUX_VERSION_CODE >= KERNEL_VERSION(2,4,20) */
++      };
+--- /dev/null
++++ b/fs/mini_fo/main.c
+@@ -0,0 +1,423 @@
++/*
++ * Copyright (c) 1997-2003 Erez Zadok
++ * Copyright (c) 2001-2003 Stony Brook University
++ *
++ * For specific licensing information, see the COPYING file distributed with
++ * this package, or get one from ftp://ftp.filesystems.org/pub/fist/COPYING.
++ *
++ * This Copyright notice must be kept intact and distributed with all
++ * fistgen sources INCLUDING sources generated by fistgen.
++ */
++/*
++ * Copyright (C) 2004, 2005 Markus Klotzbuecher <mk@creamnet.de>
++ *
++ * 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.
++ */
++
++/*
++ *  $Id$
++ */
++
++#ifdef HAVE_CONFIG_H
++# include <config.h>
++#endif
++
++#include "fist.h"
++#include "mini_fo.h"
++#include <linux/module.h>
++
++/* This definition must only appear after we include <linux/module.h> */
++#ifndef MODULE_LICENSE
++# define MODULE_LICENSE(bison)
++#endif /* not MODULE_LICENSE */
++
++/*
++ * This is the mini_fo tri interpose function, which extends the
++ * functionality of the regular interpose by interposing a higher
++ * level inode on top of two lower level ones: the base filesystem
++ * inode and the storage filesystem inode.
++ *
++ *  sb we pass is mini_fo's super_block
++ */
++int
++mini_fo_tri_interpose(dentry_t *hidden_dentry,
++                    dentry_t *hidden_sto_dentry,
++                    dentry_t *dentry, super_block_t *sb, int flag)
++{
++      inode_t *hidden_inode = NULL;
++      inode_t *hidden_sto_inode = NULL; /* store corresponding storage inode */
++      int err = 0;
++      inode_t *inode;
++
++      /* Pointer to hidden_sto_inode if exists, else to hidden_inode.
++       * This is used to copy the attributes of the correct inode. */
++      inode_t *master_inode;
++
++      if(hidden_dentry)
++              hidden_inode = hidden_dentry->d_inode;
++      if(hidden_sto_dentry)
++              hidden_sto_inode = hidden_sto_dentry->d_inode;
++
++      ASSERT(dentry->d_inode == NULL);
++
++      /* mk: One of the inodes associated with the dentrys is likely to
++       * be NULL, so carefull:
++       */
++      ASSERT((hidden_inode != NULL) || (hidden_sto_inode != NULL));
++
++      if(hidden_sto_inode)
++              master_inode = hidden_sto_inode;
++      else
++              master_inode = hidden_inode;
++
++      /*
++       * We allocate our new inode below, by calling iget.
++       * iget will call our read_inode which will initialize some
++       * of the new inode's fields
++       */
++
++      /*
++       * original: inode = iget(sb, hidden_inode->i_ino);
++       */
++      inode = iget(sb, iunique(sb, 25));
++      if (!inode) {
++              err = -EACCES;          /* should be impossible??? */
++              goto out;
++      }
++
++      /*
++       * interpose the inode if not already interposed
++       *   this is possible if the inode is being reused
++       * XXX: what happens if we get_empty_inode() but there's another already?
++       * for now, ASSERT() that this can't happen; fix later.
++       */
++      if (itohi(inode) != NULL) {
++              printk(KERN_CRIT "mini_fo_tri_interpose: itohi(inode) != NULL.\n");
++      }
++      if (itohi2(inode) != NULL) {
++              printk(KERN_CRIT "mini_fo_tri_interpose: itohi2(inode) != NULL.\n");
++      }
++
++      /* mk: Carefull, igrab can't handle NULL inodes (ok, why should it?), so
++       * we need to check here:
++       */
++      if(hidden_inode)
++              itohi(inode) = igrab(hidden_inode);
++      else
++              itohi(inode) = NULL;
++
++      if(hidden_sto_inode)
++              itohi2(inode) = igrab(hidden_sto_inode);
++      else
++              itohi2(inode) = NULL;
++
++
++      /* Use different set of inode ops for symlinks & directories*/
++      if (S_ISLNK(master_inode->i_mode))
++              inode->i_op = &mini_fo_symlink_iops;
++      else if (S_ISDIR(master_inode->i_mode))
++              inode->i_op = &mini_fo_dir_iops;
++
++      /* Use different set of file ops for directories */
++      if (S_ISDIR(master_inode->i_mode))
++              inode->i_fop = &mini_fo_dir_fops;
++
++      /* properly initialize special inodes */
++      if (S_ISBLK(master_inode->i_mode) || S_ISCHR(master_inode->i_mode) ||
++          S_ISFIFO(master_inode->i_mode) || S_ISSOCK(master_inode->i_mode)) {
++              init_special_inode(inode, master_inode->i_mode, master_inode->i_rdev);
++      }
++
++      /* Fix our inode's address operations to that of the lower inode */
++      if (inode->i_mapping->a_ops != master_inode->i_mapping->a_ops) {
++              inode->i_mapping->a_ops = master_inode->i_mapping->a_ops;
++      }
++
++      /* only (our) lookup wants to do a d_add */
++      if (flag)
++              d_add(dentry, inode);
++      else
++              d_instantiate(dentry, inode);
++
++      ASSERT(dtopd(dentry) != NULL);
++
++      /* all well, copy inode attributes */
++      fist_copy_attr_all(inode, master_inode);
++
++ out:
++      return err;
++}
++
++/* parse mount options "base=" and "sto=" */
++dentry_t *
++mini_fo_parse_options(super_block_t *sb, char *options)
++{
++      dentry_t *hidden_root = ERR_PTR(-EINVAL);
++      dentry_t *hidden_root2 = ERR_PTR(-EINVAL);
++      struct nameidata nd, nd2;
++      char *name, *tmp, *end;
++      int err = 0;
++
++      /* We don't want to go off the end of our arguments later on. */
++      for (end = options; *end; end++);
++
++      while (options < end) {
++              tmp = options;
++              while (*tmp && *tmp != ',')
++                      tmp++;
++              *tmp = '\0';
++              if (!strncmp("base=", options, 5)) {
++                      name = options + 5;
++                      printk(KERN_INFO "mini_fo: using base directory: %s\n", name);
++
++#if LINUX_VERSION_CODE < KERNEL_VERSION(2,6,0)
++                      if (path_init(name, LOOKUP_FOLLOW, &nd))
++                              err = path_walk(name, &nd);
++#else
++                      err = path_lookup(name, LOOKUP_FOLLOW, &nd);
++#endif
++                      if (err) {
++                              printk(KERN_CRIT "mini_fo: error accessing hidden directory '%s'\n", name);
++                              hidden_root = ERR_PTR(err);
++                              goto out;
++                      }
++                      hidden_root = nd.dentry;
++                      stopd(sb)->base_dir_dentry = nd.dentry;
++                      stopd(sb)->hidden_mnt = nd.mnt;
++
++              } else if(!strncmp("sto=", options, 4)) {
++                      /* parse the storage dir */
++                      name = options + 4;
++                      printk(KERN_INFO "mini_fo: using storage directory: %s\n", name);
++#if LINUX_VERSION_CODE < KERNEL_VERSION(2,6,0)
++                      if(path_init(name, LOOKUP_FOLLOW, &nd2))
++                              err = path_walk(name, &nd2);
++#else
++                        err = path_lookup(name, LOOKUP_FOLLOW, &nd2);
++#endif
++                      if(err) {
++                              printk(KERN_CRIT "mini_fo: error accessing hidden storage directory '%s'\n", name);
++
++                              hidden_root2 = ERR_PTR(err);
++                              goto out;
++                      }
++                      hidden_root2 = nd2.dentry;
++                      stopd(sb)->storage_dir_dentry = nd2.dentry;
++                      stopd(sb)->hidden_mnt2 = nd2.mnt;
++                      stohs2(sb) = hidden_root2->d_sb;
++
++                      /* validate storage dir, this is done in
++                       * mini_fo_read_super for the base directory.
++                       */
++                      if (IS_ERR(hidden_root2)) {
++                              printk(KERN_WARNING "mini_fo_parse_options: storage dentry lookup failed (err = %ld)\n", PTR_ERR(hidden_root2));
++                              goto out;
++                      }
++                      if (!hidden_root2->d_inode) {
++                              printk(KERN_WARNING "mini_fo_parse_options: no storage dir to interpose on.\n");
++                              goto out;
++                      }
++                      stohs2(sb) = hidden_root2->d_sb;
++              } else {
++                      printk(KERN_WARNING "mini_fo: unrecognized option '%s'\n", options);
++                      hidden_root = ERR_PTR(-EINVAL);
++                      goto out;
++              }
++              options = tmp + 1;
++      }
++
++ out:
++      if(IS_ERR(hidden_root2))
++              return hidden_root2;
++      return hidden_root;
++}
++
++
++#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,0)
++static int
++#else
++super_block_t *
++#endif
++mini_fo_read_super(super_block_t *sb, void *raw_data, int silent)
++{
++      dentry_t *hidden_root;
++      int err = 0;
++
++      if (!raw_data) {
++              printk(KERN_WARNING "mini_fo_read_super: missing argument\n");
++              err = -EINVAL;
++              goto out;
++      }
++      /*
++       * Allocate superblock private data
++       */
++      __stopd(sb) = kmalloc(sizeof(struct mini_fo_sb_info), GFP_KERNEL);
++      if (!stopd(sb)) {
++              printk(KERN_WARNING "%s: out of memory\n", __FUNCTION__);
++              err = -ENOMEM;
++              goto out;
++      }
++      stohs(sb) = NULL;
++
++      hidden_root = mini_fo_parse_options(sb, raw_data);
++      if (IS_ERR(hidden_root)) {
++              printk(KERN_WARNING "mini_fo_read_super: lookup_dentry failed (err = %ld)\n", PTR_ERR(hidden_root));
++              err = PTR_ERR(hidden_root);
++              goto out_free;
++      }
++      if (!hidden_root->d_inode) {
++              printk(KERN_WARNING "mini_fo_read_super: no directory to interpose on\n");
++              goto out_free;
++      }
++      stohs(sb) = hidden_root->d_sb;
++
++      /*
++       * Linux 2.4.2-ac3 and beyond has code in
++       * mm/filemap.c:generic_file_write() that requires sb->s_maxbytes
++       * to be populated.  If not set, all write()s under that sb will
++       * return 0.
++       *
++       * Linux 2.4.4+ automatically sets s_maxbytes to MAX_NON_LFS;
++       * the filesystem should override it only if it supports LFS.
++       */
++      /* non-SCA code is good to go with LFS */
++      sb->s_maxbytes = hidden_root->d_sb->s_maxbytes;
++
++      sb->s_op = &mini_fo_sops;
++      /*
++       * we can't use d_alloc_root if we want to use
++       * our own interpose function unchanged,
++       * so we simply replicate *most* of the code in d_alloc_root here
++       */
++#if LINUX_VERSION_CODE < KERNEL_VERSION(2,6,0)
++      sb->s_root = d_alloc(NULL, &(const struct qstr) { "/", 1, 0 });
++#else
++      sb->s_root = d_alloc(NULL, &(const struct qstr){hash: 0, name: "/", len : 1});
++#endif
++      if (IS_ERR(sb->s_root)) {
++              printk(KERN_WARNING "mini_fo_read_super: d_alloc failed\n");
++              err = -ENOMEM;
++              goto out_dput;
++      }
++
++      sb->s_root->d_op = &mini_fo_dops;
++      sb->s_root->d_sb = sb;
++      sb->s_root->d_parent = sb->s_root;
++
++      /* link the upper and lower dentries */
++      __dtopd(sb->s_root) = (struct mini_fo_dentry_info *)
++              kmalloc(sizeof(struct mini_fo_dentry_info), GFP_KERNEL);
++      if (!dtopd(sb->s_root)) {
++              err = -ENOMEM;
++              goto out_dput2;
++      }
++      dtopd(sb->s_root)->state = MODIFIED;
++      dtohd(sb->s_root) = hidden_root;
++
++      /* fanout relevant, interpose on storage root dentry too */
++      dtohd2(sb->s_root) = stopd(sb)->storage_dir_dentry;
++
++      /* ...and call tri-interpose to interpose root dir inodes
++       * if (mini_fo_interpose(hidden_root, sb->s_root, sb, 0))
++       */
++      if(mini_fo_tri_interpose(hidden_root, dtohd2(sb->s_root), sb->s_root, sb, 0))
++              goto out_dput2;
++
++      /* initalize the wol list */
++      itopd(sb->s_root->d_inode)->deleted_list_size = -1;
++      itopd(sb->s_root->d_inode)->renamed_list_size = -1;
++      meta_build_lists(sb->s_root);
++
++      goto out;
++
++ out_dput2:
++      dput(sb->s_root);
++ out_dput:
++      dput(hidden_root);
++      dput(dtohd2(sb->s_root)); /* release the hidden_sto_dentry too */
++ out_free:
++      kfree(stopd(sb));
++      __stopd(sb) = NULL;
++ out:
++
++#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,0)
++        return err;
++#else
++        if (err) {
++              return ERR_PTR(err);
++        } else {
++              return sb;
++        }
++#endif
++}
++
++#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,0)
++#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,18)
++static int mini_fo_get_sb(struct file_system_type *fs_type,
++                                        int flags, const char *dev_name,
++                                        void *raw_data, struct vfsmount *mnt)
++{
++      return get_sb_nodev(fs_type, flags, raw_data, mini_fo_read_super, mnt);
++}
++#else
++static struct super_block *mini_fo_get_sb(struct file_system_type *fs_type,
++                                        int flags, const char *dev_name,
++                                        void *raw_data)
++{
++      return get_sb_nodev(fs_type, flags, raw_data, mini_fo_read_super);
++}
++#endif
++
++void mini_fo_kill_block_super(struct super_block *sb)
++{
++      generic_shutdown_super(sb);
++      /*
++       *      XXX: BUG: Halcrow: Things get unstable sometime after this point:
++       *      lib/rwsem-spinlock.c:127: spin_is_locked on uninitialized
++       *      fs/fs-writeback.c:402: spin_lock(fs/super.c:a0381828) already
++       *      locked by fs/fs-writeback.c/402
++       *
++       *      Apparently, someone's not releasing a lock on sb_lock...
++       */
++}
++
++static struct file_system_type mini_fo_fs_type = {
++      .owner          = THIS_MODULE,
++      .name           = "mini_fo",
++      .get_sb         = mini_fo_get_sb,
++      .kill_sb        = mini_fo_kill_block_super,
++      .fs_flags       = 0,
++};
++
++
++#else
++static DECLARE_FSTYPE(mini_fo_fs_type, "mini_fo", mini_fo_read_super, 0);
++#endif
++
++static int __init init_mini_fo_fs(void)
++{
++      printk("Registering mini_fo version $Id$\n");
++      return register_filesystem(&mini_fo_fs_type);
++}
++static void __exit exit_mini_fo_fs(void)
++{
++      printk("Unregistering mini_fo version $Id$\n");
++      unregister_filesystem(&mini_fo_fs_type);
++}
++
++#if LINUX_VERSION_CODE < KERNEL_VERSION(2,6,0)
++EXPORT_NO_SYMBOLS;
++#endif
++
++MODULE_AUTHOR("Erez Zadok <ezk@cs.sunysb.edu>");
++MODULE_DESCRIPTION("FiST-generated mini_fo filesystem");
++MODULE_LICENSE("GPL");
++
++/* MODULE_PARM(fist_debug_var, "i"); */
++/* MODULE_PARM_DESC(fist_debug_var, "Debug level"); */
++
++module_init(init_mini_fo_fs)
++module_exit(exit_mini_fo_fs)
+--- /dev/null
++++ b/fs/mini_fo/Makefile
+@@ -0,0 +1,17 @@
++#
++# Makefile for mini_fo 2.4 and 2.6 Linux kernels
++#
++# Copyright (C) 2004, 2005 Markus Klotzbuecher <mk@creamnet.de>
++#
++# 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.
++#
++
++obj-$(CONFIG_MINI_FO) := mini_fo.o
++mini_fo-objs   := meta.o dentry.o file.o inode.o main.o super.o state.o aux.o
++
++# dependencies
++${mini_fo-objs}: mini_fo.h fist.h
++
+--- /dev/null
++++ b/fs/mini_fo/meta.c
+@@ -0,0 +1,1000 @@
++/*
++ * Copyright (C) 2004, 2005 Markus Klotzbuecher <mk@creamnet.de>
++ *
++ * 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.
++ */
++
++#ifdef HAVE_CONFIG_H
++# include <config.h>
++#endif /* HAVE_CONFIG_H */
++#include "fist.h"
++#include "mini_fo.h"
++
++int meta_build_lists(dentry_t *dentry)
++{
++      struct mini_fo_inode_info *inode_info;
++
++      dentry_t *meta_dentry = 0;
++      file_t *meta_file = 0;
++      mm_segment_t old_fs;
++      void *buf;
++
++      int bytes, len;
++      struct vfsmount *meta_mnt;
++      char *entry;
++
++      inode_info = itopd(dentry->d_inode);
++      if(!(inode_info->deleted_list_size == -1 &&
++           inode_info->renamed_list_size == -1)) {
++              printk(KERN_CRIT "mini_fo: meta_build_lists: \
++                                  Error, list(s) not virgin.\n");
++              return -1;
++      }
++
++      /* init our meta lists */
++      INIT_LIST_HEAD(&inode_info->deleted_list);
++      inode_info->deleted_list_size = 0;
++
++      INIT_LIST_HEAD(&inode_info->renamed_list);
++      inode_info->renamed_list_size = 0;
++
++      /* might there be a META-file? */
++      if(dtohd2(dentry) && dtohd2(dentry)->d_inode) {
++              meta_dentry = lookup_one_len(META_FILENAME,
++                                           dtohd2(dentry),
++                                           strlen(META_FILENAME));
++              if(!meta_dentry->d_inode) {
++                      dput(meta_dentry);
++                      goto out_ok;
++              }
++              /* $%& err, is this correct? */
++              meta_mnt = stopd(dentry->d_inode->i_sb)->hidden_mnt2;
++              mntget(meta_mnt);
++
++
++              /* open META-file for reading */
++              meta_file = dentry_open(meta_dentry, meta_mnt, 0x0);
++              if(!meta_file || IS_ERR(meta_file)) {
++                      printk(KERN_CRIT "mini_fo: meta_build_lists: \
++                                          ERROR opening META file.\n");
++                      goto out_err;
++              }
++
++              /* check if fs supports reading */
++              if(!meta_file->f_op->read) {
++                      printk(KERN_CRIT "mini_fo: meta_build_lists: \
++                                          ERROR, fs does not support reading.\n");
++                      goto out_err_close;
++              }
++
++              /* allocate a page for transfering the data */
++              buf = (void *) __get_free_page(GFP_KERNEL);
++              if(!buf) {
++                      printk(KERN_CRIT "mini_fo: meta_build_lists: \
++                                          ERROR, out of mem.\n");
++                      goto out_err_close;
++              }
++              meta_file->f_pos = 0;
++              old_fs = get_fs();
++              set_fs(KERNEL_DS);
++              do {
++                      char *c;
++                      bytes = meta_file->f_op->read(meta_file, buf, PAGE_SIZE, &meta_file->f_pos);
++                      if(bytes == PAGE_SIZE) {
++                              /* trim a cut off filename and adjust f_pos to get it next time */
++                              for(c = (char*) buf+PAGE_SIZE;
++                                  *c != '\n';
++                                  c--, bytes--, meta_file->f_pos--);
++                      }
++                      entry = (char *) buf;
++                      while(entry < (char *) buf+bytes) {
++
++                              char *old_path;
++                              char *dir_name;
++                              int old_len, new_len;
++
++                              /* len without '\n'*/
++                              len = (int) (strchr(entry, '\n') - entry);
++                              switch (*entry) {
++                              case 'D':
++                                      /* format: "D filename" */
++                                      meta_list_add_d_entry(dentry,
++                                                            entry+2,
++                                                            len-2);
++                                      break;
++                              case 'R':
++                                      /* format: "R path/xy/dir newDir" */
++                                      old_path = entry+2;
++                                      dir_name = strchr(old_path, ' ') + 1;
++                                      old_len =  dir_name - old_path - 1;
++                                      new_len = ((int) entry) + len - ((int ) dir_name);
++                                      meta_list_add_r_entry(dentry,
++                                                            old_path,
++                                                            old_len,
++                                                            dir_name,
++                                                            new_len);
++                                      break;
++                              default:
++                                      /* unknown entry type detected */
++                                      break;
++                              }
++                              entry += len+1;
++                      }
++
++              } while(meta_file->f_pos < meta_dentry->d_inode->i_size);
++
++              free_page((unsigned long) buf);
++              set_fs(old_fs);
++              fput(meta_file);
++      }
++      goto out_ok;
++
++ out_err_close:
++      fput(meta_file);
++ out_err:
++      mntput(meta_mnt);
++      dput(meta_dentry);
++      return -1;
++ out_ok:
++      return 1; /* check this!!! inode_info->wol_size; */
++}
++
++/* cleanups up all lists and free's the mem by dentry */
++int meta_put_lists(dentry_t *dentry)
++{
++      if(!dentry || !dentry->d_inode) {
++              printk("mini_fo: meta_put_lists: invalid dentry passed.\n");
++              return -1;
++      }
++      return __meta_put_lists(dentry->d_inode);
++}
++
++/* cleanups up all lists and free's the mem by inode */
++int __meta_put_lists(inode_t *inode)
++{
++      int err = 0;
++      if(!inode || !itopd(inode)) {
++              printk("mini_fo: __meta_put_lists: invalid inode passed.\n");
++              return -1;
++      }
++      err = __meta_put_d_list(inode);
++      err |= __meta_put_r_list(inode);
++      return err;
++}
++
++int meta_sync_lists(dentry_t *dentry)
++{
++      int err = 0;
++      if(!dentry || !dentry->d_inode) {
++              printk("mini_fo: meta_sync_lists: \
++                        invalid dentry passed.\n");
++              return -1;
++      }
++      err = meta_sync_d_list(dentry, 0);
++      err |= meta_sync_r_list(dentry, 1);
++      return err;
++}
++
++
++/* remove all D entries from the renamed list and free the mem */
++int __meta_put_d_list(inode_t *inode)
++{
++      struct list_head *tmp;
++        struct deleted_entry *del_entry;
++        struct mini_fo_inode_info *inode_info;
++
++      if(!inode || !itopd(inode)) {
++              printk(KERN_CRIT "mini_fo: __meta_put_d_list: \
++                                  invalid inode passed.\n");
++              return -1;
++      }
++      inode_info = itopd(inode);
++
++        /* nuke the DELETED-list */
++        if(inode_info->deleted_list_size <= 0)
++              return 0;
++
++      while(!list_empty(&inode_info->deleted_list)) {
++              tmp = inode_info->deleted_list.next;
++              list_del(tmp);
++              del_entry = list_entry(tmp, struct deleted_entry, list);
++              kfree(del_entry->name);
++              kfree(del_entry);
++      }
++      inode_info->deleted_list_size = 0;
++
++      return 0;
++}
++
++/* remove all R entries from the renamed list and free the mem */
++int __meta_put_r_list(inode_t *inode)
++{
++      struct list_head *tmp;
++      struct renamed_entry *ren_entry;
++        struct mini_fo_inode_info *inode_info;
++
++      if(!inode || !itopd(inode)) {
++              printk(KERN_CRIT "mini_fo: meta_put_r_list: invalid inode.\n");
++              return -1;
++      }
++      inode_info = itopd(inode);
++
++        /* nuke the RENAMED-list */
++        if(inode_info->renamed_list_size <= 0)
++              return 0;
++
++      while(!list_empty(&inode_info->renamed_list)) {
++              tmp = inode_info->renamed_list.next;
++              list_del(tmp);
++              ren_entry = list_entry(tmp, struct renamed_entry, list);
++              kfree(ren_entry->new_name);
++              kfree(ren_entry->old_name);
++              kfree(ren_entry);
++      }
++      inode_info->renamed_list_size = 0;
++
++      return 0;
++}
++
++int meta_add_d_entry(dentry_t *dentry, const char *name, int len)
++{
++      int err = 0;
++      err = meta_list_add_d_entry(dentry, name, len);
++      err |= meta_write_d_entry(dentry,name,len);
++      return err;
++}
++
++/* add a D entry to the deleted list */
++int meta_list_add_d_entry(dentry_t *dentry, const char *name, int len)
++{
++        struct deleted_entry *del_entry;
++        struct mini_fo_inode_info *inode_info;
++
++      if(!dentry || !dentry->d_inode) {
++              printk(KERN_CRIT "mini_fo: meta_list_add_d_entry: \
++                                  invalid dentry passed.\n");
++              return -1;
++      }
++      inode_info = itopd(dentry->d_inode);
++
++        if(inode_info->deleted_list_size < 0)
++                return -1;
++
++        del_entry = (struct deleted_entry *)
++              kmalloc(sizeof(struct deleted_entry), GFP_KERNEL);
++        del_entry->name = (char*) kmalloc(len, GFP_KERNEL);
++        if(!del_entry || !del_entry->name) {
++                printk(KERN_CRIT "mini_fo: meta_list_add_d_entry: \
++                                  out of mem.\n");
++              kfree(del_entry->name);
++              kfree(del_entry);
++                return -ENOMEM;
++        }
++
++        strncpy(del_entry->name, name, len);
++        del_entry->len = len;
++
++        list_add(&del_entry->list, &inode_info->deleted_list);
++        inode_info->deleted_list_size++;
++        return 0;
++}
++
++int meta_add_r_entry(dentry_t *dentry,
++                        const char *old_name, int old_len,
++                        const char *new_name, int new_len)
++{
++      int err = 0;
++      err = meta_list_add_r_entry(dentry,
++                                  old_name, old_len,
++                                  new_name, new_len);
++      err |= meta_write_r_entry(dentry,
++                                old_name, old_len,
++                                new_name, new_len);
++      return err;
++}
++
++/* add a R entry to the renamed list */
++int meta_list_add_r_entry(dentry_t *dentry,
++                        const char *old_name, int old_len,
++                        const char *new_name, int new_len)
++{
++        struct renamed_entry *ren_entry;
++        struct mini_fo_inode_info *inode_info;
++
++      if(!dentry || !dentry->d_inode) {
++              printk(KERN_CRIT "mini_fo: meta_list_add_r_entry: \
++                                  invalid dentry passed.\n");
++              return -1;
++      }
++      inode_info = itopd(dentry->d_inode);
++
++        if(inode_info->renamed_list_size < 0)
++                return -1;
++
++        ren_entry = (struct renamed_entry *)
++              kmalloc(sizeof(struct renamed_entry), GFP_KERNEL);
++        ren_entry->old_name = (char*) kmalloc(old_len, GFP_KERNEL);
++        ren_entry->new_name = (char*) kmalloc(new_len, GFP_KERNEL);
++
++        if(!ren_entry || !ren_entry->old_name || !ren_entry->new_name) {
++                printk(KERN_CRIT "mini_fo: meta_list_add_r_entry: \
++                                  out of mem.\n");
++              kfree(ren_entry->new_name);
++              kfree(ren_entry->old_name);
++              kfree(ren_entry);
++                return -ENOMEM;
++        }
++
++        strncpy(ren_entry->old_name, old_name, old_len);
++        ren_entry->old_len = old_len;
++        strncpy(ren_entry->new_name, new_name, new_len);
++        ren_entry->new_len = new_len;
++
++        list_add(&ren_entry->list, &inode_info->renamed_list);
++        inode_info->renamed_list_size++;
++        return 0;
++}
++
++
++int meta_remove_r_entry(dentry_t *dentry, const char *name, int len)
++{
++      int err = 0;
++      if(!dentry || !dentry->d_inode) {
++              printk(KERN_CRIT
++                     "mini_fo: meta_remove_r_entry: \
++                        invalid dentry passed.\n");
++              return -1;
++      }
++
++      err = meta_list_remove_r_entry(dentry, name, len);
++      err |= meta_sync_lists(dentry);
++      return err;
++}
++
++int meta_list_remove_r_entry(dentry_t *dentry, const char *name, int len)
++{
++      if(!dentry || !dentry->d_inode) {
++              printk(KERN_CRIT
++                     "mini_fo: meta_list_remove_r_entry: \
++                        invalid dentry passed.\n");
++              return -1;
++      }
++      return __meta_list_remove_r_entry(dentry->d_inode, name, len);
++}
++
++int __meta_list_remove_r_entry(inode_t *inode, const char *name, int len)
++{
++      struct list_head *tmp;
++        struct renamed_entry *ren_entry;
++        struct mini_fo_inode_info *inode_info;
++
++      if(!inode || !itopd(inode))
++              printk(KERN_CRIT
++                     "mini_fo: __meta_list_remove_r_entry: \
++                        invalid inode passed.\n");
++      inode_info = itopd(inode);
++
++        if(inode_info->renamed_list_size < 0)
++                return -1;
++        if(inode_info->renamed_list_size == 0)
++                return 1;
++
++      list_for_each(tmp, &inode_info->renamed_list) {
++              ren_entry = list_entry(tmp, struct renamed_entry, list);
++              if(ren_entry->new_len != len)
++                      continue;
++
++              if(!strncmp(ren_entry->new_name, name, len)) {
++                      list_del(tmp);
++                      kfree(ren_entry->new_name);
++                      kfree(ren_entry->old_name);
++                      kfree(ren_entry);
++                      inode_info->renamed_list_size--;
++                      return 0;
++              }
++      }
++      return 1;
++}
++
++
++/* append a single D entry to the meta file */
++int meta_write_d_entry(dentry_t *dentry, const char *name, int len)
++{
++      dentry_t *meta_dentry = 0;
++        file_t *meta_file = 0;
++        mm_segment_t old_fs;
++
++        int bytes, err;
++        struct vfsmount *meta_mnt = 0;
++        char *buf;
++
++      err = 0;
++
++      if(itopd(dentry->d_inode)->deleted_list_size < 0) {
++              err = -1;
++              goto out;
++      }
++
++      if(dtopd(dentry)->state == UNMODIFIED) {
++                err = build_sto_structure(dentry->d_parent, dentry);
++                if(err) {
++                        printk(KERN_CRIT "mini_fo: meta_write_d_entry: \
++                                          build_sto_structure failed.\n");
++                      goto out;
++                }
++        }
++      meta_dentry = lookup_one_len(META_FILENAME,
++                                   dtohd2(dentry), strlen (META_FILENAME));
++
++      /* We need to create a META-file */
++        if(!meta_dentry->d_inode) {
++#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,0)
++              vfs_create(dtohd2(dentry)->d_inode,
++                         meta_dentry,
++                         S_IRUSR | S_IWUSR,
++                         NULL);
++#else
++                vfs_create(dtohd2(dentry)->d_inode,
++                         meta_dentry,
++                         S_IRUSR | S_IWUSR);
++#endif
++      }
++        /* open META-file for writing */
++        meta_file = dentry_open(meta_dentry, meta_mnt, 0x1);
++        if(!meta_file || IS_ERR(meta_file)) {
++                printk(KERN_CRIT "mini_fo: meta_write_d_entry: \
++                                  ERROR opening meta file.\n");
++                mntput(meta_mnt); /* $%& is this necessary? */
++                dput(meta_dentry);
++              err = -1;
++                goto out;
++        }
++
++        /* check if fs supports writing */
++        if(!meta_file->f_op->write) {
++                printk(KERN_CRIT "mini_fo: meta_write_d_entry: \
++                                  ERROR, fs does not support writing.\n");
++                goto out_err_close;
++        }
++
++      meta_file->f_pos = meta_dentry->d_inode->i_size; /* append */
++        old_fs = get_fs();
++        set_fs(KERNEL_DS);
++
++      /* size: len for name, 1 for \n and 2 for "D " */
++      buf = (char *) kmalloc(len+3, GFP_KERNEL);
++      if (!buf) {
++              printk(KERN_CRIT "mini_fo: meta_write_d_entry: \
++                                  out of mem.\n");
++              return -ENOMEM;
++      }
++
++      buf[0] = 'D';
++      buf[1] = ' ';
++      strncpy(buf+2, name, len);
++      buf[len+2] = '\n';
++      bytes = meta_file->f_op->write(meta_file, buf, len+3,
++                                     &meta_file->f_pos);
++      if(bytes != len+3) {
++              printk(KERN_CRIT "mini_fo: meta_write_d_entry: \
++                                  ERROR writing.\n");
++              err = -1;
++      }
++      kfree(buf);
++      set_fs(old_fs);
++
++ out_err_close:
++      fput(meta_file);
++ out:
++      return err;
++}
++
++/* append a single R entry to the meta file */
++int meta_write_r_entry(dentry_t *dentry,
++                     const char *old_name, int old_len,
++                     const char *new_name, int new_len)
++{
++      dentry_t *meta_dentry = 0;
++        file_t *meta_file = 0;
++        mm_segment_t old_fs;
++
++        int bytes, err, buf_len;
++      struct vfsmount *meta_mnt = 0;
++        char *buf;
++
++
++      err = 0;
++
++      if(itopd(dentry->d_inode)->renamed_list_size < 0) {
++              err = -1;
++              goto out;
++      }
++
++      /* build the storage structure? */
++      if(dtopd(dentry)->state == UNMODIFIED) {
++                err = build_sto_structure(dentry->d_parent, dentry);
++                if(err) {
++                        printk(KERN_CRIT "mini_fo: meta_write_r_entry: \
++                                          build_sto_structure failed.\n");
++                      goto out;
++                }
++        }
++      meta_dentry = lookup_one_len(META_FILENAME,
++                                   dtohd2(dentry),
++                                   strlen (META_FILENAME));
++        if(!meta_dentry->d_inode) {
++                /* We need to create a META-file */
++#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,0)
++                vfs_create(dtohd2(dentry)->d_inode,
++                         meta_dentry, S_IRUSR | S_IWUSR, NULL);
++#else
++                vfs_create(dtohd2(dentry)->d_inode,
++                         meta_dentry, S_IRUSR | S_IWUSR);
++#endif
++      }
++        /* open META-file for writing */
++        meta_file = dentry_open(meta_dentry, meta_mnt, 0x1);
++        if(!meta_file || IS_ERR(meta_file)) {
++                printk(KERN_CRIT "mini_fo: meta_write_r_entry: \
++                                  ERROR opening meta file.\n");
++                mntput(meta_mnt);
++                dput(meta_dentry);
++              err = -1;
++                goto out;
++        }
++
++        /* check if fs supports writing */
++        if(!meta_file->f_op->write) {
++                printk(KERN_CRIT "mini_fo: meta_write_r_entry: \
++                                  ERROR, fs does not support writing.\n");
++                goto out_err_close;
++        }
++
++      meta_file->f_pos = meta_dentry->d_inode->i_size; /* append */
++        old_fs = get_fs();
++        set_fs(KERNEL_DS);
++
++      /* size: 2 for "R ", old_len+new_len for names, 1 blank+1 \n */
++      buf_len = old_len + new_len + 4;
++      buf = (char *) kmalloc(buf_len, GFP_KERNEL);
++      if (!buf) {
++              printk(KERN_CRIT "mini_fo: meta_write_r_entry: out of mem.\n");
++              return -ENOMEM;
++      }
++
++      buf[0] = 'R';
++      buf[1] = ' ';
++      strncpy(buf + 2, old_name, old_len);
++      buf[old_len + 2] = ' ';
++      strncpy(buf + old_len + 3, new_name, new_len);
++      buf[buf_len -1] = '\n';
++      bytes = meta_file->f_op->write(meta_file, buf, buf_len, &meta_file->f_pos);
++      if(bytes != buf_len) {
++              printk(KERN_CRIT "mini_fo: meta_write_r_entry: ERROR writing.\n");
++              err = -1;
++      }
++
++      kfree(buf);
++      set_fs(old_fs);
++
++ out_err_close:
++      fput(meta_file);
++ out:
++      return err;
++}
++
++/* sync D list to disk, append data if app_flag is 1 */
++/* check the meta_mnt, which seems not to be used (properly)  */
++
++int meta_sync_d_list(dentry_t *dentry, int app_flag)
++{
++      dentry_t *meta_dentry;
++        file_t *meta_file;
++        mm_segment_t old_fs;
++
++        int bytes, err;
++        struct vfsmount *meta_mnt;
++        char *buf;
++
++      struct list_head *tmp;
++        struct deleted_entry *del_entry;
++        struct mini_fo_inode_info *inode_info;
++
++      err = 0;
++      meta_file=0;
++      meta_mnt=0;
++
++      if(!dentry || !dentry->d_inode) {
++              printk(KERN_CRIT "mini_fo: meta_sync_d_list: \
++                                  invalid inode passed.\n");
++              err = -1;
++              goto out;
++      }
++      inode_info = itopd(dentry->d_inode);
++
++        if(inode_info->deleted_list_size < 0) {
++              err = -1;
++              goto out;
++      }
++
++      /* ok, there is something to sync */
++
++      /* build the storage structure? */
++        if(!dtohd2(dentry) && !itohi2(dentry->d_inode)) {
++                err = build_sto_structure(dentry->d_parent, dentry);
++                if(err) {
++                        printk(KERN_CRIT "mini_fo: meta_sync_d_list: \
++                                          build_sto_structure failed.\n");
++                      goto out;
++                }
++        }
++      meta_dentry = lookup_one_len(META_FILENAME,
++                                   dtohd2(dentry),
++                                   strlen(META_FILENAME));
++        if(!meta_dentry->d_inode) {
++                /* We need to create a META-file */
++#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,0)
++                vfs_create(dtohd2(dentry)->d_inode,
++                         meta_dentry, S_IRUSR | S_IWUSR, NULL);
++#else
++                vfs_create(dtohd2(dentry)->d_inode,
++                         meta_dentry, S_IRUSR | S_IWUSR);
++#endif
++              app_flag = 0;
++      }
++      /* need we truncate the meta file? */
++      if(!app_flag) {
++              struct iattr newattrs;
++                newattrs.ia_size = 0;
++                newattrs.ia_valid = ATTR_SIZE | ATTR_CTIME;
++
++#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,16)
++              mutex_lock(&meta_dentry->d_inode->i_mutex);
++#else
++                down(&meta_dentry->d_inode->i_sem);
++#endif
++                err = notify_change(meta_dentry, &newattrs);
++
++#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,16)
++              mutex_unlock(&meta_dentry->d_inode->i_mutex);
++#else
++                up(&meta_dentry->d_inode->i_sem);
++#endif
++
++                if(err || meta_dentry->d_inode->i_size != 0) {
++                        printk(KERN_CRIT "mini_fo: meta_sync_d_list: \
++                                          ERROR truncating meta file.\n");
++                        goto out_err_close;
++              }
++      }
++
++        /* open META-file for writing */
++        meta_file = dentry_open(meta_dentry, meta_mnt, 0x1);
++        if(!meta_file || IS_ERR(meta_file)) {
++                printk(KERN_CRIT "mini_fo: meta_sync_d_list: \
++                                  ERROR opening meta file.\n");
++              /* we don't mntget so we dont't mntput (for now)
++               * mntput(meta_mnt);
++               */
++              dput(meta_dentry);
++              err = -1;
++                goto out;
++        }
++
++        /* check if fs supports writing */
++        if(!meta_file->f_op->write) {
++                printk(KERN_CRIT "mini_fo: meta_sync_d_list: \
++                                  ERROR, fs does not support writing.\n");
++                goto out_err_close;
++        }
++
++      meta_file->f_pos = meta_dentry->d_inode->i_size; /* append */
++        old_fs = get_fs();
++        set_fs(KERNEL_DS);
++
++      /* here we go... */
++        list_for_each(tmp, &inode_info->deleted_list) {
++              del_entry = list_entry(tmp, struct deleted_entry, list);
++
++              /* size: len for name, 1 for \n and 2 for "D " */
++              buf = (char *) kmalloc(del_entry->len+3, GFP_KERNEL);
++              if (!buf) {
++                      printk(KERN_CRIT "mini_fo: meta_sync_d_list: \
++                                          out of mem.\n");
++                      return -ENOMEM;
++              }
++
++              buf[0] = 'D';
++              buf[1] = ' ';
++              strncpy(buf+2, del_entry->name, del_entry->len);
++              buf[del_entry->len+2] = '\n';
++              bytes = meta_file->f_op->write(meta_file, buf,
++                                             del_entry->len+3,
++                                             &meta_file->f_pos);
++              if(bytes != del_entry->len+3) {
++                      printk(KERN_CRIT "mini_fo: meta_sync_d_list: \
++                                          ERROR writing.\n");
++                      err |= -1;
++              }
++              kfree(buf);
++      }
++      set_fs(old_fs);
++
++ out_err_close:
++      fput(meta_file);
++ out:
++      return err;
++
++}
++
++int meta_sync_r_list(dentry_t *dentry, int app_flag)
++{
++      dentry_t *meta_dentry;
++        file_t *meta_file;
++        mm_segment_t old_fs;
++
++        int bytes, err, buf_len;
++        struct vfsmount *meta_mnt;
++        char *buf;
++
++      struct list_head *tmp;
++        struct renamed_entry *ren_entry;
++        struct mini_fo_inode_info *inode_info;
++
++      err = 0;
++      meta_file=0;
++      meta_mnt=0;
++
++      if(!dentry || !dentry->d_inode) {
++              printk(KERN_CRIT "mini_fo: meta_sync_r_list: \
++                                  invalid dentry passed.\n");
++              err = -1;
++              goto out;
++      }
++      inode_info = itopd(dentry->d_inode);
++
++        if(inode_info->deleted_list_size < 0) {
++              err = -1;
++              goto out;
++      }
++
++      /* ok, there is something to sync */
++
++      /* build the storage structure? */
++        if(!dtohd2(dentry) && !itohi2(dentry->d_inode)) {
++                err = build_sto_structure(dentry->d_parent, dentry);
++                if(err) {
++                        printk(KERN_CRIT "mini_fo: meta_sync_r_list: \
++                                          build_sto_structure failed.\n");
++                      goto out;
++                }
++        }
++      meta_dentry = lookup_one_len(META_FILENAME,
++                                   dtohd2(dentry),
++                                   strlen(META_FILENAME));
++        if(!meta_dentry->d_inode) {
++                /* We need to create a META-file */
++#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,0)
++                vfs_create(dtohd2(dentry)->d_inode,
++                         meta_dentry, S_IRUSR | S_IWUSR, NULL);
++#else
++                vfs_create(dtohd2(dentry)->d_inode,
++                         meta_dentry, S_IRUSR | S_IWUSR);
++#endif
++              app_flag = 0;
++      }
++      /* need we truncate the meta file? */
++      if(!app_flag) {
++              struct iattr newattrs;
++                newattrs.ia_size = 0;
++                newattrs.ia_valid = ATTR_SIZE | ATTR_CTIME;
++
++#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,16)
++              mutex_lock(&meta_dentry->d_inode->i_mutex);
++#else
++                down(&meta_dentry->d_inode->i_sem);
++#endif
++                err = notify_change(meta_dentry, &newattrs);
++
++#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,16)
++              mutex_unlock(&meta_dentry->d_inode->i_mutex);
++#else
++                up(&meta_dentry->d_inode->i_sem);
++#endif
++                if(err || meta_dentry->d_inode->i_size != 0) {
++                        printk(KERN_CRIT "mini_fo: meta_sync_r_list: \
++                                          ERROR truncating meta file.\n");
++                        goto out_err_close;
++              }
++      }
++
++        /* open META-file for writing */
++        meta_file = dentry_open(meta_dentry, meta_mnt, 0x1);
++        if(!meta_file || IS_ERR(meta_file)) {
++                printk(KERN_CRIT "mini_fo: meta_sync_r_list: \
++                                  ERROR opening meta file.\n");
++              /* we don't mntget so we dont't mntput (for now)
++               * mntput(meta_mnt);
++               */
++              dput(meta_dentry);
++              err = -1;
++                goto out;
++        }
++
++        /* check if fs supports writing */
++        if(!meta_file->f_op->write) {
++                printk(KERN_CRIT "mini_fo: meta_sync_r_list: \
++                                  ERROR, fs does not support writing.\n");
++                goto out_err_close;
++        }
++
++      meta_file->f_pos = meta_dentry->d_inode->i_size; /* append */
++        old_fs = get_fs();
++        set_fs(KERNEL_DS);
++
++      /* here we go... */
++        list_for_each(tmp, &inode_info->renamed_list) {
++              ren_entry = list_entry(tmp, struct renamed_entry, list);
++              /* size:
++               * 2 for "R ", old_len+new_len for names, 1 blank+1 \n */
++              buf_len = ren_entry->old_len + ren_entry->new_len + 4;
++              buf = (char *) kmalloc(buf_len, GFP_KERNEL);
++              if (!buf) {
++                      printk(KERN_CRIT "mini_fo: meta_sync_r_list: \
++                                          out of mem.\n");
++                      return -ENOMEM;
++              }
++              buf[0] = 'R';
++              buf[1] = ' ';
++              strncpy(buf + 2, ren_entry->old_name, ren_entry->old_len);
++              buf[ren_entry->old_len + 2] = ' ';
++              strncpy(buf + ren_entry->old_len + 3,
++                      ren_entry->new_name, ren_entry->new_len);
++              buf[buf_len - 1] = '\n';
++              bytes = meta_file->f_op->write(meta_file, buf,
++                                             buf_len, &meta_file->f_pos);
++              if(bytes != buf_len) {
++                      printk(KERN_CRIT "mini_fo: meta_sync_r_list: \
++                                          ERROR writing.\n");
++                      err |= -1;
++              }
++              kfree(buf);
++      }
++      set_fs(old_fs);
++
++ out_err_close:
++      fput(meta_file);
++ out:
++      return err;
++}
++
++int meta_check_d_entry(dentry_t *dentry, const char *name, int len)
++{
++      if(!dentry || !dentry->d_inode)
++              printk(KERN_CRIT "mini_fo: meta_check_d_dentry: \
++                                  invalid dentry passed.\n");
++      return __meta_check_d_entry(dentry->d_inode, name, len);
++}
++
++int __meta_check_d_entry(inode_t *inode, const char *name, int len)
++{
++      struct list_head *tmp;
++        struct deleted_entry *del_entry;
++        struct mini_fo_inode_info *inode_info;
++
++      if(!inode || !itopd(inode))
++              printk(KERN_CRIT "mini_fo: __meta_check_d_dentry: \
++                                  invalid inode passed.\n");
++
++        inode_info = itopd(inode);
++
++        if(inode_info->deleted_list_size <= 0)
++                return 0;
++
++        list_for_each(tmp, &inode_info->deleted_list) {
++              del_entry = list_entry(tmp, struct deleted_entry, list);
++              if(del_entry->len != len)
++                      continue;
++
++              if(!strncmp(del_entry->name, name, len))
++                      return 1;
++      }
++      return 0;
++}
++
++/*
++ * check if file has been renamed and return path to orig. base dir.
++ * Implements no error return values so far, what of course sucks.
++ * String is null terminated.'
++ */
++char* meta_check_r_entry(dentry_t *dentry, const char *name, int len)
++{
++      if(!dentry || !dentry->d_inode) {
++              printk(KERN_CRIT "mini_fo: meta_check_r_dentry: \
++                                  invalid dentry passed.\n");
++              return NULL;
++      }
++      return __meta_check_r_entry(dentry->d_inode, name, len);
++}
++
++char* __meta_check_r_entry(inode_t *inode, const char *name, int len)
++{
++      struct list_head *tmp;
++        struct renamed_entry *ren_entry;
++        struct mini_fo_inode_info *inode_info;
++      char *old_path;
++
++      if(!inode || !itopd(inode)) {
++              printk(KERN_CRIT "mini_fo: meta_check_r_dentry: \
++                                  invalid inode passed.\n");
++              return NULL;
++      }
++      inode_info = itopd(inode);
++
++        if(inode_info->renamed_list_size <= 0)
++                return NULL;
++
++        list_for_each(tmp, &inode_info->renamed_list) {
++              ren_entry = list_entry(tmp, struct renamed_entry, list);
++              if(ren_entry->new_len != len)
++                      continue;
++
++              if(!strncmp(ren_entry->new_name, name, len)) {
++                      old_path = (char *)
++                              kmalloc(ren_entry->old_len+1, GFP_KERNEL);
++                      strncpy(old_path,
++                              ren_entry->old_name,
++                              ren_entry->old_len);
++                      old_path[ren_entry->old_len]='\0';
++                      return old_path;
++              }
++      }
++      return NULL;
++}
++
++/*
++ * This version only checks if entry exists and return:
++ *     1 if exists,
++ *     0 if not,
++ *    -1 if error.
++ */
++int meta_is_r_entry(dentry_t *dentry, const char *name, int len)
++{
++      if(!dentry || !dentry->d_inode) {
++              printk(KERN_CRIT "mini_fo: meta_check_r_dentry [2]: \
++                                  invalid dentry passed.\n");
++              return -1;
++      }
++      return __meta_is_r_entry(dentry->d_inode, name, len);
++}
++
++int __meta_is_r_entry(inode_t *inode, const char *name, int len)
++{
++      struct list_head *tmp;
++        struct renamed_entry *ren_entry;
++        struct mini_fo_inode_info *inode_info;
++
++      if(!inode || !itopd(inode)) {
++              printk(KERN_CRIT "mini_fo: meta_check_r_dentry [2]: \
++                                  invalid inode passed.\n");
++              return -1;
++      }
++      inode_info = itopd(inode);
++
++        if(inode_info->renamed_list_size <= 0)
++                return -1;
++
++        list_for_each(tmp, &inode_info->renamed_list) {
++              ren_entry = list_entry(tmp, struct renamed_entry, list);
++              if(ren_entry->new_len != len)
++                      continue;
++
++              if(!strncmp(ren_entry->new_name, name, len))
++                      return 1;
++      }
++      return 0;
++}
++
+--- /dev/null
++++ b/fs/mini_fo/mini_fo.h
+@@ -0,0 +1,510 @@
++/*
++ * Copyright (c) 1997-2003 Erez Zadok
++ * Copyright (c) 2001-2003 Stony Brook University
++ *
++ * For specific licensing information, see the COPYING file distributed with
++ * this package, or get one from ftp://ftp.filesystems.org/pub/fist/COPYING.
++ *
++ * This Copyright notice must be kept intact and distributed with all
++ * fistgen sources INCLUDING sources generated by fistgen.
++ */
++/*
++ * Copyright (C) 2004, 2005 Markus Klotzbuecher <mk@creamnet.de>
++ *
++ * 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.
++ */
++
++/*
++ *  $Id$
++ */
++
++#ifndef __MINI_FO_H_
++#define __MINI_FO_H_
++
++#ifdef __KERNEL__
++
++/* META stuff */
++#define META_FILENAME "META_dAfFgHE39ktF3HD2sr"
++
++/* use xattrs? */
++#define XATTR
++
++/* File attributes that when changed, result in a file beeing copied to storage */
++#define COPY_FLAGS ATTR_MODE | ATTR_UID | ATTR_GID | ATTR_SIZE
++
++/*
++ * mini_fo filestates
++ */
++#define MODIFIED       1
++#define UNMODIFIED     2
++#define CREATED        3
++#define DEL_REWRITTEN  4
++#define DELETED        5
++#define NON_EXISTANT   6
++
++/* fist file systems superblock magic */
++# define MINI_FO_SUPER_MAGIC 0xf15f
++
++/*
++ * STRUCTURES:
++ */
++
++/* mini_fo inode data in memory */
++struct mini_fo_inode_info {
++      inode_t *wii_inode;
++      inode_t *wii_inode2; /* pointer to storage inode */
++
++      /* META-data lists */
++      /* deleted list, ex wol */
++      struct list_head deleted_list;
++      int deleted_list_size;
++
++      /* renamed list */
++      struct list_head renamed_list;
++      int renamed_list_size;
++
++      /* add other lists here ... */
++};
++
++/* mini_fo dentry data in memory */
++struct mini_fo_dentry_info {
++      dentry_t *wdi_dentry;
++      dentry_t *wdi_dentry2; /* pointer to  storage dentry */
++      unsigned int state;  /* state of the mini_fo dentry */
++};
++
++
++/* mini_fo super-block data in memory */
++struct mini_fo_sb_info {
++      super_block_t *wsi_sb, *wsi_sb2; /* mk: might point to the same sb */
++      struct vfsmount *hidden_mnt, *hidden_mnt2;
++      dentry_t *base_dir_dentry;
++      dentry_t *storage_dir_dentry;
++      ;
++};
++
++/* readdir_data, readdir helper struct */
++struct readdir_data {
++      struct list_head ndl_list; /* linked list head ptr */
++      int ndl_size; /* list size */
++      int sto_done; /* flag to show that the storage dir entries have
++                     * all been read an now follow base entries */
++};
++
++/* file private data. */
++struct mini_fo_file_info {
++      struct file *wfi_file;
++      struct file *wfi_file2; /* pointer to storage file */
++      struct readdir_data rd;
++};
++
++/* struct ndl_entry */
++struct ndl_entry {
++      struct list_head list;
++      char *name;
++      int len;
++};
++
++/********************************
++ *  META-data structures
++ ********************************/
++
++/* deleted entry */
++struct deleted_entry {
++      struct list_head list;
++      char *name;
++      int len;
++};
++
++/* renamed entry */
++struct renamed_entry {
++      struct list_head list;
++      char *old_name;     /* old directory with full path */
++      int old_len;        /* length of above string */
++      char *new_name;     /* new directory name */
++      int new_len;        /* length of above string */
++};
++
++/* attr_change entry */
++struct attr_change_entry {
++      struct list_head list;
++      char *name;
++      int len;
++};
++
++/* link entry */
++struct link_entry {
++      struct list_head list;
++      int links_moved;
++      int inum_base;
++      int inum_sto;
++      char *weird_name;
++      int weird_name_len;
++};
++
++
++/* Some other stuff required for mini_fo_filldir64, copied from
++ * fs/readdir.c
++ */
++
++#define ROUND_UP64(x) (((x)+sizeof(u64)-1) & ~(sizeof(u64)-1))
++#define NAME_OFFSET(de) ((int) ((de)->d_name - (char *) (de)))
++
++
++struct linux_dirent64 {
++        u64             d_ino;
++        s64             d_off;
++        unsigned short  d_reclen;
++        unsigned char   d_type;
++        char            d_name[0];
++};
++
++
++struct getdents_callback64 {
++        struct linux_dirent64 * current_dir;
++        struct linux_dirent64 * previous;
++        int count;
++        int error;
++};
++
++struct linux_dirent {
++      unsigned long   d_ino;
++      unsigned long   d_off;
++      unsigned short  d_reclen;
++      char            d_name[1];
++};
++
++struct getdents_callback {
++      struct linux_dirent * current_dir;
++      struct linux_dirent * previous;
++      int count;
++      int error;
++};
++
++
++/*
++ * MACROS:
++ */
++
++/* file TO private_data */
++# define ftopd(file) ((struct mini_fo_file_info *)((file)->private_data))
++# define __ftopd(file) ((file)->private_data)
++/* file TO hidden_file */
++# define ftohf(file) ((ftopd(file))->wfi_file)
++# define ftohf2(file) ((ftopd(file))->wfi_file2)
++
++/* inode TO private_data */
++#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,18)
++# define itopd(ino) ((struct mini_fo_inode_info *)(ino)->i_private)
++# define __itopd(ino) ((ino)->i_private)
++#else
++# define itopd(ino) ((struct mini_fo_inode_info *)(ino)->u.generic_ip)
++# define __itopd(ino) ((ino)->u.generic_ip)
++#endif
++/* inode TO hidden_inode */
++# define itohi(ino) (itopd(ino)->wii_inode)
++# define itohi2(ino) (itopd(ino)->wii_inode2)
++
++/* superblock TO private_data */
++#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,0)
++# define stopd(super) ((struct mini_fo_sb_info *)(super)->s_fs_info)
++# define __stopd(super) ((super)->s_fs_info)
++#else
++# define stopd(super) ((struct mini_fo_sb_info *)(super)->u.generic_sbp)
++# define __stopd(super) ((super)->u.generic_sbp)
++#endif
++
++/* unused? # define vfs2priv stopd */
++/* superblock TO hidden_superblock */
++
++# define stohs(super) (stopd(super)->wsi_sb)
++# define stohs2(super) (stopd(super)->wsi_sb2)
++
++/* dentry TO private_data */
++# define dtopd(dentry) ((struct mini_fo_dentry_info *)(dentry)->d_fsdata)
++# define __dtopd(dentry) ((dentry)->d_fsdata)
++/* dentry TO hidden_dentry */
++# define dtohd(dent) (dtopd(dent)->wdi_dentry)
++# define dtohd2(dent) (dtopd(dent)->wdi_dentry2)
++
++/* dentry to state */
++# define dtost(dent) (dtopd(dent)->state)
++# define sbt(sb) ((sb)->s_type->name)
++
++#define IS_WRITE_FLAG(flag) (flag & (O_RDWR | O_WRONLY | O_APPEND))
++#define IS_COPY_FLAG(flag) (flag & (COPY_FLAGS))
++
++/* macros to simplify non-SCA code */
++#  define MALLOC_PAGE_POINTERS(hidden_pages, num_hidden_pages)
++#  define MALLOC_PAGEDATA_POINTERS(hidden_pages_data, num_hidden_pages)
++#  define FREE_PAGE_POINTERS(hidden_pages, num)
++#  define FREE_PAGEDATA_POINTERS(hidden_pages_data, num)
++#  define FOR_EACH_PAGE
++#  define CURRENT_HIDDEN_PAGE hidden_page
++#  define CURRENT_HIDDEN_PAGEDATA hidden_page_data
++#  define CURRENT_HIDDEN_PAGEINDEX page->index
++
++/*
++ * EXTERNALS:
++ */
++extern struct file_operations mini_fo_main_fops;
++extern struct file_operations mini_fo_dir_fops;
++extern struct inode_operations mini_fo_main_iops;
++extern struct inode_operations mini_fo_dir_iops;
++extern struct inode_operations mini_fo_symlink_iops;
++extern struct super_operations mini_fo_sops;
++extern struct dentry_operations mini_fo_dops;
++extern struct vm_operations_struct mini_fo_shared_vmops;
++extern struct vm_operations_struct mini_fo_private_vmops;
++extern struct address_space_operations mini_fo_aops;
++
++#if 0 /* unused by mini_fo */
++extern int mini_fo_interpose(dentry_t *hidden_dentry, dentry_t *this_dentry, super_block_t *sb, int flag);
++#if defined(FIST_FILTER_DATA) || defined(FIST_FILTER_SCA)
++extern page_t *mini_fo_get1page(file_t *file, int index);
++extern int mini_fo_fill_zeros(file_t *file, page_t *page, unsigned from);
++# endif /* FIST_FILTER_DATA || FIST_FILTER_SCA */
++
++
++#  define mini_fo_hidden_dentry(d) __mini_fo_hidden_dentry(__FILE__,__FUNCTION__,__LINE__,(d))
++#  define mini_fo_hidden_sto_dentry(d) __mini_fo_hidden_sto_dentry(__FILE__,__FUNCTION__,__LINE__,(d))
++
++extern dentry_t *__mini_fo_hidden_dentry(char *file, char *func, int line, dentry_t *this_dentry);
++extern dentry_t *__mini_fo_hidden_sto_dentry(char *file, char *func, int line, dentry_t *this_dentry);
++
++extern int mini_fo_read_file(const char *filename, void *buf, int len);
++extern int mini_fo_write_file(const char *filename, void *buf, int len);
++extern dentry_t *fist_lookup(dentry_t *dir, const char *name, vnode_t **out, uid_t uid, gid_t gid);
++#endif /* unused by mini_fo */
++
++/* state transition functions */
++extern int nondir_unmod_to_mod(dentry_t *dentry, int cp_flag);
++extern int nondir_del_rew_to_del(dentry_t *dentry);
++extern int nondir_creat_to_del(dentry_t *dentry);
++extern int nondir_mod_to_del(dentry_t *dentry);
++extern int nondir_unmod_to_del(dentry_t *dentry);
++
++extern int dir_unmod_to_mod(dentry_t *dentry);
++
++/* rename specials */
++extern int rename_directory(inode_t *old_dir, dentry_t *old_dentry, inode_t *new_dir, dentry_t *new_dentry);
++extern int rename_nondir(inode_t *old_dir, dentry_t *old_dentry, inode_t *new_dir, dentry_t *new_dentry);
++
++/* misc stuff */
++extern int mini_fo_tri_interpose(dentry_t *hidden_dentry,
++                               dentry_t *hidden_sto_dentry,
++                               dentry_t *dentry,
++                               super_block_t *sb, int flag);
++
++extern int mini_fo_cp_cont(dentry_t *tgt_dentry, struct vfsmount *tgt_mnt,
++                         dentry_t *src_dentry, struct vfsmount *src_mnt);
++
++#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,0)
++extern int mini_fo_create(inode_t *dir, dentry_t *dentry, int mode, struct nameidata *nd);
++
++extern int create_sto_nod(dentry_t *dentry, int mode, dev_t dev);
++extern int create_sto_reg_file(dentry_t *dentry, int mode, struct nameidata *nd);
++#else
++extern int mini_fo_create(inode_t *dir, dentry_t *dentry, int mode);
++
++extern int create_sto_nod(dentry_t *dentry, int mode, int dev);
++extern int create_sto_reg_file(dentry_t *dentry, int mode);
++#endif
++
++extern int create_sto_dir(dentry_t *dentry, int mode);
++
++extern int exists_in_storage(dentry_t *dentry);
++extern int is_mini_fo_existant(dentry_t *dentry);
++extern int get_neg_sto_dentry(dentry_t *dentry);
++extern int build_sto_structure(dentry_t *dir, dentry_t *dentry);
++extern int get_mini_fo_bpath(dentry_t *dentry, char **bpath, int *bpath_len);
++extern dentry_t *bpath_walk(super_block_t *sb, char *bpath);
++extern int bpath_put(dentry_t *dentry);
++
++/* check_mini_fo types functions */
++extern int check_mini_fo_dentry(dentry_t *dentry);
++extern int check_mini_fo_file(file_t *file);
++extern int check_mini_fo_inode(inode_t *inode);
++
++/* General meta functions, can be called from outside of meta.c */
++extern int meta_build_lists(dentry_t *dentry);
++extern int meta_put_lists(dentry_t *dentry);
++extern int __meta_put_lists(inode_t *inode);
++
++extern int meta_add_d_entry(dentry_t *dentry, const char *name, int len);
++extern int meta_add_r_entry(dentry_t *dentry,
++                          const char *old_name, int old_len,
++                          const char *new_name, int new_len);
++
++extern int meta_remove_r_entry(dentry_t *dentry, const char *name, int len);
++
++extern int meta_check_d_entry(dentry_t *dentry, const char *name, int len);
++extern int __meta_check_d_entry(inode_t *inode, const char *name, int len);
++
++extern char* meta_check_r_entry(dentry_t *dentry, const char *name, int len);
++extern char* __meta_check_r_entry(inode_t *inode, const char *name, int len);
++extern int meta_is_r_entry(dentry_t *dentry, const char *name, int len);
++extern int __meta_is_r_entry(inode_t *inode, const char *name, int len);
++
++/* Specific meta functions, should be called only inside meta.c */
++extern int __meta_put_d_list(inode_t *inode);
++extern int __meta_put_r_list(inode_t *inode);
++
++extern int meta_list_add_d_entry(dentry_t *dentry,
++                               const char *name, int len);
++extern int meta_list_add_r_entry(dentry_t *dentry,
++                               const char *old_name, int old_len,
++                               const char *new_name, int new_len);
++
++extern int meta_list_remove_r_entry(dentry_t *dentry,
++                                  const char *name, int len);
++
++extern int __meta_list_remove_r_entry(inode_t *inode,
++                                    const char *name, int len);
++
++extern int meta_write_d_entry(dentry_t *dentry, const char *name, int len);
++extern int meta_write_r_entry(dentry_t *dentry,
++                            const char *old_name, int old_len,
++                            const char *new_name, int new_len);
++
++extern int meta_sync_lists(dentry_t *dentry);
++extern int meta_sync_d_list(dentry_t *dentry, int app_flag);
++extern int meta_sync_r_list(dentry_t *dentry, int app_flag);
++
++/* ndl stuff */
++extern int ndl_add_entry(struct readdir_data *rd, const char *name, int len);
++extern void ndl_put_list(struct readdir_data *rd);
++extern int ndl_check_entry(struct readdir_data *rd,
++                         const char *name, int len);
++
++
++# define copy_inode_size(dst, src) \
++    dst->i_size = src->i_size; \
++    dst->i_blocks = src->i_blocks;
++
++static inline void
++fist_copy_attr_atime(inode_t *dest, const inode_t *src)
++{
++      ASSERT(dest != NULL);
++      ASSERT(src != NULL);
++      dest->i_atime = src->i_atime;
++}
++static inline void
++fist_copy_attr_times(inode_t *dest, const inode_t *src)
++{
++      ASSERT(dest != NULL);
++      ASSERT(src != NULL);
++      dest->i_atime = src->i_atime;
++      dest->i_mtime = src->i_mtime;
++      dest->i_ctime = src->i_ctime;
++}
++static inline void
++fist_copy_attr_timesizes(inode_t *dest, const inode_t *src)
++{
++      ASSERT(dest != NULL);
++      ASSERT(src != NULL);
++      dest->i_atime = src->i_atime;
++      dest->i_mtime = src->i_mtime;
++      dest->i_ctime = src->i_ctime;
++      copy_inode_size(dest, src);
++}
++static inline void
++fist_copy_attr_all(inode_t *dest, const inode_t *src)
++{
++      ASSERT(dest != NULL);
++      ASSERT(src != NULL);
++      dest->i_mode = src->i_mode;
++      dest->i_nlink = src->i_nlink;
++      dest->i_uid = src->i_uid;
++      dest->i_gid = src->i_gid;
++      dest->i_rdev = src->i_rdev;
++      dest->i_atime = src->i_atime;
++      dest->i_mtime = src->i_mtime;
++      dest->i_ctime = src->i_ctime;
++#if LINUX_VERSION_CODE < KERNEL_VERSION(2,6,19)
++      dest->i_blksize = src->i_blksize;
++#endif
++#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,4,12)
++      dest->i_blkbits = src->i_blkbits;
++# endif /* linux 2.4.12 and newer */
++      copy_inode_size(dest, src);
++#if LINUX_VERSION_CODE < KERNEL_VERSION(2,6,0)
++      dest->i_attr_flags = src->i_attr_flags;
++#else
++      dest->i_flags = src->i_flags;
++#endif
++}
++
++#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,0)
++/* copied from linux/fs.h */
++#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,16)
++static inline void double_lock(struct dentry *d1, struct dentry *d2)
++{
++      struct mutex *m1 = &d1->d_inode->i_mutex;
++      struct mutex *m2 = &d2->d_inode->i_mutex;
++      if (m1 != m2) {
++              if ((unsigned long) m1 < (unsigned long) m2) {
++                      struct mutex *tmp = m2;
++                      m2 = m1; m1 = tmp;
++              }
++              mutex_lock(m1);
++      }
++      mutex_lock(m2);
++}
++
++static inline void double_unlock(struct dentry *d1, struct dentry *d2)
++{
++      struct mutex *m1 = &d1->d_inode->i_mutex;
++      struct mutex *m2 = &d2->d_inode->i_mutex;
++      mutex_unlock(m1);
++      if (m1 != m2)
++              mutex_unlock(m2);
++      dput(d1);
++      dput(d2);
++}
++
++#else
++static inline void double_down(struct semaphore *s1, struct semaphore *s2)
++{
++        if (s1 != s2) {
++                if ((unsigned long) s1 < (unsigned long) s2) {
++                        struct semaphore *tmp = s2;
++                        s2 = s1; s1 = tmp;
++                }
++                down(s1);
++        }
++        down(s2);
++}
++
++static inline void double_up(struct semaphore *s1, struct semaphore *s2)
++{
++        up(s1);
++        if (s1 != s2)
++                up(s2);
++}
++
++static inline void double_lock(struct dentry *d1, struct dentry *d2)
++{
++        double_down(&d1->d_inode->i_sem, &d2->d_inode->i_sem);
++}
++
++static inline void double_unlock(struct dentry *d1, struct dentry *d2)
++{
++        double_up(&d1->d_inode->i_sem,&d2->d_inode->i_sem);
++        dput(d1);
++        dput(d2);
++}
++#endif   /* if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,16) */
++#endif  /* if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,0) */
++#endif /* __KERNEL__ */
++
++/*
++ * Definitions for user and kernel code
++ */
++
++/* ioctls */
++
++#endif        /* not __MINI_FO_H_ */
+--- /dev/null
++++ b/fs/mini_fo/mini_fo-merge
+@@ -0,0 +1,180 @@
++#!/bin/bash
++#
++# Copyright (C) 2005 Markus Klotzbuecher <mk@creamnet.de>
++# 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.
++#
++
++BASE=
++STO=
++HELP=
++DRYRUN=
++VERBOSE=
++TMP="/tmp/"
++META_NAME="META_dAfFgHE39ktF3HD2sr"
++SKIP_DEL_LIST="skip-delete-list.mini_fo-merge"
++
++COMMAND=
++exec_command()
++{
++    if [ x$DRYRUN == "xset" ]; then
++      echo "  would run: $COMMAND"
++    elif ! [ x$DRYRUN == "xset" ]; then
++      if [ x$VERBOSE == "xset" ]; then
++          echo "  running: $COMMAND"
++      fi
++      eval $COMMAND
++    fi
++}
++
++usage()
++{
++cat <<EOF
++
++USAGE: $0 -b <base dir> -s <storage dir>
++Version 0.1
++
++This script merges the contents of a mini_fo storage file system back
++to the base file system.
++
++!!! Warning: This will modify the base filesystem and can destroy data
++             if used wrongly.
++
++Options:
++     -b <base dir>
++          the directory of the base file system.
++
++     -s <storage dir>
++          the directory of the storage file system.
++
++     -d   dry run, will not change anything and print the commands that
++          would be executed.
++
++     -t   tmp dir for storing temporary file. default: $TMP
++
++     -v   show what operations are performed.
++
++     -h   displays this message.
++
++EOF
++}
++
++# parse parameters
++while getopts hdvt:b:s: OPTS
++  do
++  case $OPTS in
++      h)  HELP="set";;
++      d)  DRYRUN="set";;
++      v)  VERBOSE="set";;
++      b)  BASE="$OPTARG";;
++      s)  STO="$OPTARG";;
++      t)  TMP="$OPTARG";;
++      ?)  usage
++        exit 1;;
++  esac
++done
++
++if [ "x$HELP" == "xset" ]; then
++    usage
++    exit -1
++fi
++
++if ! [ -d "$BASE" ] || ! [ -d "$STO" ]; then
++    echo -e "$0:\n Error, -s and/or -b argument missing. type $0 -h for help."
++    exit -1;
++fi
++
++# get full paths
++pushd $STO; STO=`pwd`; popd
++pushd $BASE; BASE=`pwd`; popd
++TMP=${TMP%/}
++
++
++cat<<EOF
++###############################################################################
++# mini_fo-merge
++#
++# base dir:       $BASE
++# storage dir:    $STO
++# meta filename:  $META_NAME
++# dry run:        $DRYRUN
++# verbose:        $VERBOSE
++# tmp files:      $TMP
++###############################################################################
++
++EOF
++
++rm $TMP/$SKIP_DEL_LIST
++
++# first process all renamed dirs
++echo "Merging renamed directories..."
++pushd $STO &> /dev/null
++find . -name $META_NAME -type f -print0  | xargs -0 -e grep  -e '^R ' | tr -s ':R' ' ' | while read ENTRY; do
++    echo "entry: $ENTRY"
++    META_FILE=`echo $ENTRY | cut -d ' ' -f 1`
++    OLD_B_DIR=`echo $ENTRY | cut -d ' ' -f 2 | sed -e 's/\///'`
++    NEW_NAME=`echo $ENTRY | cut -d ' ' -f 3`
++    NEW_B_DIR=`echo $META_FILE | sed -e "s/$META_NAME/$NEW_NAME/" | sed -e 's/^\.\///'`
++    echo "META_FILE: $META_FILE"
++    echo "OLD_B_DIR: $OLD_B_DIR"
++    echo "NEW_NAME: $NEW_NAME"
++    echo  "NEW_B_DIR: $NEW_B_DIR"
++
++    pushd $BASE &> /dev/null
++    # remove an existing dir in storage
++    COMMAND="rm -rf $NEW_B_DIR"; exec_command
++    COMMAND="cp -R $OLD_B_DIR $NEW_B_DIR"; exec_command
++    echo ""
++    popd &> /dev/null
++
++    # remember this dir to exclude it from deleting later
++    echo $NEW_B_DIR >> $TMP/$SKIP_DEL_LIST
++done
++
++# delete all whiteouted files from base
++echo -e "\nDeleting whiteout'ed files from base file system..."
++find . -name $META_NAME -type f -print0  | xargs -0 -e grep  -e '^D ' | sed -e 's/:D//' | while read ENTRY; do
++    META_FILE=`echo $ENTRY | cut -d ' ' -f 1`
++    DEL_NAME=`echo $ENTRY | cut -d ' ' -f 2`
++    DEL_FILE=`echo $META_FILE | sed -e "s/$META_NAME/$DEL_NAME/" | sed -e 's/^\.\///'`
++    grep -x $DEL_FILE $TMP/$SKIP_DEL_LIST &> /dev/null
++    if [ $? -ne 0 ]; then
++      pushd $BASE &> /dev/null
++      COMMAND="rm -rf $DEL_FILE"; exec_command
++      popd &> /dev/null
++    else
++      echo "  excluding: $DEL_FILE as in skip-del-list."
++    fi
++done
++
++# create all dirs and update permissions
++echo -e "\nSetting up directory structures in base file system..."
++find . -type d | sed -e 's/^\.\///' | while read DIR; do
++    PERMS=`stat -c %a $DIR`
++    DIR_UID=`stat -c %u $DIR`
++    DIR_GID=`stat -c %g $DIR`
++    pushd $BASE &> /dev/null
++    if ! [ -d $DIR ]; then
++      COMMAND="mkdir -p $DIR"; exec_command
++    fi
++    COMMAND="chmod $PERMS $DIR"; exec_command
++    COMMAND="chown $DIR_UID:$DIR_GID $DIR"; exec_command
++    popd &> /dev/null
++done
++
++# merge all non-directory files
++echo -e "\nMerging all non-directory files...."
++for i in b c p f l s; do
++    find . -type $i | sed -e 's/^\.\///' | grep -v "$META_NAME" | while read FILE; do
++      pushd $BASE #&> /dev/null
++      COMMAND="cp -df $STO/$FILE $BASE/$FILE"; exec_command
++      popd &> /dev/null
++    done
++done
++popd &> /dev/null
++
++#rm $TMP/$SKIP_DEL_LIST
++
++echo "Done!"
+--- /dev/null
++++ b/fs/mini_fo/mini_fo-overlay
+@@ -0,0 +1,130 @@
++#!/bin/bash
++#
++# Copyright (C) 2005 Markus Klotzbuecher <mk@creamnet.de>
++# 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.
++#
++
++HELP=
++SUFF=
++MNTP=
++MNT_DIR="/mnt"
++STO=
++STO_DIR="/tmp"
++BASE=
++
++usage()
++{
++cat <<EOF
++
++Usage: $0 [-s suffix] [-d sto_dir_dir] [-m mount point] base_dir
++Version 0.1
++
++This script overlays the given base directory using the mini_fo file
++system. If only the base directory base_dir is given, $0
++will use a storage directory called "sto-<base_dir_name>" in $STO_DIR,
++and mount point "mini_fo-<base_dir_dir>" in $MNT_DIR.
++
++Options:
++     -s <suffix>
++          add given suffix to storage directory and the mount
++          point. This is usefull for overlaying one base directory
++          several times and avoiding conflicts with storage directory
++          names and mount points.
++
++     -d <sto_dir_dir>
++          change the directory in which the storage directory will be
++          created (default is currently "$STO_DIR".
++
++     -m <mount point>
++          use an alternative directory to create the mini_fo
++          mountpoint (default is currently "$MNT_DIR".
++
++     -h   displays this message.
++
++EOF
++exit 1;
++}
++
++while getopts hm:s:d: OPTS
++  do
++  case $OPTS in
++      s)  SUFF="$OPTARG";;
++      d)  STO_DIR="$OPTARG";;
++      m)  MNT_DIR="$OPTARG";;
++      h)  HELP="set";;
++      ?)  usage
++        exit 1;;
++  esac
++done
++shift $(($OPTIND - 1))
++
++BASE="$1"
++
++if [ "x$HELP" == "xset" ]; then
++    usage
++    exit -1
++fi
++
++# fix suffix
++if [ "x$SUFF" != "x" ]; then
++    SUFF="-$SUFF"
++fi
++
++# kill trailing slashes
++MNT_DIR=${MNT_DIR%/}
++STO_DIR=${STO_DIR%/}
++BASE=${BASE%/}
++
++
++if ! [ -d "$BASE" ]; then
++    echo "invalid base dir $BASE, run $0 -h for help."
++    exit -1
++fi
++
++# check opts
++if ! [ -d "$MNT_DIR" ]; then
++    echo "invalid mount dir $MNT_DIR, run $0 -h for help."
++    exit -1
++fi
++
++if ! [ -d "$STO_DIR" ]; then
++    echo "invalid sto_dir_dir $STO_DIR, run $0 -h for help."
++    exit -1
++fi
++
++MNTP="$MNT_DIR/mini_fo-`basename $BASE`$SUFF"
++STO="$STO_DIR/sto-`basename $BASE`$SUFF"
++
++# create the mount point if it doesn't exist
++mkdir -p $MNTP
++if [ $? -ne 0 ]; then
++    echo "Error, failed to create mount point $MNTP"
++fi
++
++mkdir -p $STO
++if [ $? -ne 0 ]; then
++    echo "Error, failed to create storage dir $STO"
++fi
++
++# check if fs is already mounted
++mount | grep mini_fo | grep $MNTP &> /dev/null
++if [ $? -eq 0 ]; then
++    echo "Error, existing mini_fo mount at $MNTP."
++    exit -1
++fi
++
++mount | grep mini_fo | grep $STO &> /dev/null
++if [ $? -eq 0 ]; then
++    echo "Error, $STO seems to be used already."
++    exit -1
++fi
++
++# mount
++mount -t mini_fo -o base=$BASE,sto=$STO $BASE $MNTP
++
++if [ $? -ne 0 ]; then
++    echo "Error, mounting failed, maybe no permisson to mount?"
++fi
+--- /dev/null
++++ b/fs/mini_fo/mmap.c
+@@ -0,0 +1,637 @@
++/*
++ * Copyright (c) 1997-2003 Erez Zadok
++ * Copyright (c) 2001-2003 Stony Brook University
++ *
++ * For specific licensing information, see the COPYING file distributed with
++ * this package, or get one from ftp://ftp.filesystems.org/pub/fist/COPYING.
++ *
++ * This Copyright notice must be kept intact and distributed with all
++ * fistgen sources INCLUDING sources generated by fistgen.
++ */
++/*
++ * Copyright (C) 2004, 2005 Markus Klotzbuecher <mk@creamnet.de>
++ *
++ * 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.
++ */
++
++/*
++ *  $Id$
++ */
++
++#ifdef HAVE_CONFIG_H
++# include <config.h>
++#endif /* HAVE_CONFIG_H */
++
++#include "fist.h"
++#include "mini_fo.h"
++
++
++#ifdef FIST_COUNT_WRITES
++/* for counting writes in the middle vs. regular writes */
++unsigned long count_writes = 0, count_writes_middle = 0;
++#endif /* FIST_COUNT_WRITES */
++
++/* forward declaration of commit write and prepare write */
++STATIC int mini_fo_commit_write(file_t *file, page_t *page, unsigned from, unsigned to);
++STATIC int mini_fo_prepare_write(file_t *file, page_t *page, unsigned from, unsigned to);
++
++
++/*
++ * Function for handling creation of holes when lseek-ing past the
++ * end of the file and then writing some data.
++ */
++int
++mini_fo_fill_zeros(file_t* file, page_t *page, unsigned from)
++{
++      int err = 0;
++      dentry_t *dentry = file->f_dentry;
++      inode_t *inode = dentry->d_inode;
++      page_t *tmp_page;
++      int index;
++
++      print_entry_location();
++
++      for (index = inode->i_size >> PAGE_CACHE_SHIFT; index < page->index; index++) {
++              tmp_page = mini_fo_get1page(file, index);
++              if (IS_ERR(tmp_page)) {
++                      err = PTR_ERR(tmp_page);
++                      goto out;
++              }
++
++              /*
++               * zero out rest of the contents of the page between the appropriate
++               * offsets.
++               */
++              memset((char*)page_address(tmp_page) + (inode->i_size & ~PAGE_CACHE_MASK), 0, PAGE_CACHE_SIZE - (inode->i_size & ~PAGE_CACHE_MASK));
++
++              if (! (err = mini_fo_prepare_write(file, tmp_page, 0, PAGE_CACHE_SIZE)))
++                      err = mini_fo_commit_write(file, tmp_page, 0, PAGE_CACHE_SIZE);
++
++              page_cache_release(tmp_page);
++              if (err < 0)
++                      goto out;
++              if (current->need_resched)
++                      schedule();
++      }
++
++      /* zero out appropriate parts of last page */
++
++      /*
++       * if the encoding type is block, then adjust the 'from' (where the
++       * zeroing will start) offset appropriately
++       */
++      from = from & (~(FIST_ENCODING_BLOCKSIZE - 1));
++
++      if ((from - (inode->i_size & ~PAGE_CACHE_MASK)) > 0) {
++
++              memset((char*)page_address(page) + (inode->i_size & ~PAGE_CACHE_MASK), 0, from - (inode->i_size & ~PAGE_CACHE_MASK));
++              if (! (err = mini_fo_prepare_write(file, page, 0, PAGE_CACHE_SIZE)))
++                      err = mini_fo_commit_write(file, page, 0, PAGE_CACHE_SIZE);
++
++              if (err < 0)
++                      goto out;
++              if (current->need_resched)
++                      schedule();
++      }
++
++ out:
++      print_exit_status(err);
++      return err;
++}
++
++
++
++STATIC int
++mini_fo_writepage(page_t *page)
++{
++      int err = -EIO;
++      inode_t *inode;
++      inode_t *hidden_inode;
++      page_t *hidden_page;
++      char *kaddr, *hidden_kaddr;
++
++      print_entry_location();
++
++      inode = page->mapping->host;
++      hidden_inode = itohi(inode);
++
++      /*
++       * writepage is called when shared mmap'ed files need to write
++       * their pages, while prepare/commit_write are called from the
++       * non-paged write() interface.  (However, in 2.3 the two interfaces
++       * share the same cache, while in 2.2 they didn't.)
++       *
++       * So we pretty much have to duplicate much of what commit_write does.
++       */
++
++      /* find lower page (returns a locked page) */
++      hidden_page = grab_cache_page(hidden_inode->i_mapping, page->index);
++      if (!hidden_page)
++              goto out;
++
++      /* get page address, and encode it */
++      kaddr = (char *) kmap(page);
++      hidden_kaddr = (char*) kmap(hidden_page);
++      mini_fo_encode_block(kaddr, hidden_kaddr, PAGE_CACHE_SIZE, inode, inode->i_sb, page->index);
++      /* if encode_block could fail, then return error */
++      kunmap(page);
++      kunmap(hidden_page);
++
++      /* call lower writepage (expects locked page) */
++      err = hidden_inode->i_mapping->a_ops->writepage(hidden_page);
++
++      /*
++       * update mtime and ctime of lower level file system
++       * mini_fo' mtime and ctime are updated by generic_file_write
++       */
++      hidden_inode->i_mtime = hidden_inode->i_ctime = CURRENT_TIME;
++
++#if LINUX_VERSION_CODE < KERNEL_VERSION(2,4,1)
++      UnlockPage(hidden_page);        /* b/c grab_cache_page locked it */
++# endif /* kernel older than 2.4.1 */
++      page_cache_release(hidden_page); /* b/c grab_cache_page increased refcnt */
++
++      if (err)
++              ClearPageUptodate(page);
++      else
++              SetPageUptodate(page);
++ out:
++#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,4,1)
++      UnlockPage(page);
++# endif /* kernel 2.4.1 and newer */
++      print_exit_status(err);
++      return err;
++}
++
++
++/*
++ * get one page from cache or lower f/s, return error otherwise.
++ * returns unlocked, up-to-date page (if ok), with increased refcnt.
++ */
++page_t *
++mini_fo_get1page(file_t *file, int index)
++{
++      page_t *page;
++      dentry_t *dentry;
++      inode_t *inode;
++      struct address_space *mapping;
++      int err;
++
++      print_entry_location();
++
++      dentry = file->f_dentry; /* CPW: Moved below print_entry_location */
++      inode = dentry->d_inode;
++      mapping = inode->i_mapping;
++
++      fist_dprint(8, "%s: read page index %d pid %d\n", __FUNCTION__, index, current->pid);
++      if (index < 0) {
++              printk("%s BUG: index=%d\n", __FUNCTION__, index);
++              page = ERR_PTR(-EIO);
++              goto out;
++      }
++      page = read_cache_page(mapping,
++                             index,
++                             (filler_t *) mapping->a_ops->readpage,
++                             (void *) file);
++      if (IS_ERR(page))
++              goto out;
++      wait_on_page(page);
++      if (!Page_Uptodate(page)) {
++              lock_page(page);
++              err = mapping->a_ops->readpage(file, page);
++              if (err) {
++                      page = ERR_PTR(err);
++                      goto out;
++              }
++              wait_on_page(page);
++              if (!Page_Uptodate(page)) {
++                      page = ERR_PTR(-EIO);
++                      goto out;
++              }
++      }
++
++ out:
++      print_exit_pointer(page);
++      return page;
++}
++
++
++/*
++ * get one page from cache or lower f/s, return error otherwise.
++ * similar to get1page, but doesn't guarantee that it will return
++ * an unlocked page.
++ */
++page_t *
++mini_fo_get1page_cached(file_t *file, int index)
++{
++      page_t *page;
++      dentry_t *dentry;
++      inode_t *inode;
++      struct address_space *mapping;
++      int err;
++
++      print_entry_location();
++
++      dentry = file->f_dentry; /* CPW: Moved below print_entry_location */
++      inode = dentry->d_inode;
++      mapping = inode->i_mapping;
++
++      fist_dprint(8, "%s: read page index %d pid %d\n", __FUNCTION__, index, current->pid);
++      if (index < 0) {
++              printk("%s BUG: index=%d\n", __FUNCTION__, index);
++              page = ERR_PTR(-EIO);
++              goto out;
++      }
++      page = read_cache_page(mapping,
++                             index,
++                             (filler_t *) mapping->a_ops->readpage,
++                             (void *) file);
++      if (IS_ERR(page))
++              goto out;
++
++ out:
++      print_exit_pointer(page);
++      return page;
++}
++
++
++/*
++ * readpage is called from generic_page_read and the fault handler.
++ * If your file system uses generic_page_read for the read op, it
++ * must implement readpage.
++ *
++ * Readpage expects a locked page, and must unlock it.
++ */
++STATIC int
++mini_fo_do_readpage(file_t *file, page_t *page)
++{
++      int err = -EIO;
++      dentry_t *dentry;
++      file_t *hidden_file = NULL;
++      dentry_t *hidden_dentry;
++      inode_t *inode;
++      inode_t *hidden_inode;
++      char *page_data;
++      page_t *hidden_page;
++      char *hidden_page_data;
++      int real_size;
++
++      print_entry_location();
++
++      dentry = file->f_dentry; /* CPW: Moved below print_entry_location */
++      if (ftopd(file) != NULL)
++              hidden_file = ftohf(file);
++      hidden_dentry = dtohd(dentry);
++      inode = dentry->d_inode;
++      hidden_inode = itohi(inode);
++
++      fist_dprint(7, "%s: requesting page %d from file %s\n", __FUNCTION__, page->index, dentry->d_name.name);
++
++      MALLOC_PAGE_POINTERS(hidden_pages, num_hidden_pages);
++      MALLOC_PAGEDATA_POINTERS(hidden_pages_data, num_hidden_pages);
++      FOR_EACH_PAGE
++              CURRENT_HIDDEN_PAGE = NULL;
++
++      /* find lower page (returns a locked page) */
++      FOR_EACH_PAGE {
++              fist_dprint(8, "%s: Current page index = %d\n", __FUNCTION__, CURRENT_HIDDEN_PAGEINDEX);
++              CURRENT_HIDDEN_PAGE = read_cache_page(hidden_inode->i_mapping,
++                                                    CURRENT_HIDDEN_PAGEINDEX,
++                                                    (filler_t *) hidden_inode->i_mapping->a_ops->readpage,
++                                                    (void *) hidden_file);
++              if (IS_ERR(CURRENT_HIDDEN_PAGE)) {
++                      err = PTR_ERR(CURRENT_HIDDEN_PAGE);
++                      CURRENT_HIDDEN_PAGE = NULL;
++                      goto out_release;
++              }
++      }
++
++      /*
++       * wait for the page data to show up
++       * (signaled by readpage as unlocking the page)
++       */
++      FOR_EACH_PAGE {
++              wait_on_page(CURRENT_HIDDEN_PAGE);
++              if (!Page_Uptodate(CURRENT_HIDDEN_PAGE)) {
++                      /*
++                       * call readpage() again if we returned from wait_on_page with a
++                       * page that's not up-to-date; that can happen when a partial
++                       * page has a few buffers which are ok, but not the whole
++                       * page.
++                       */
++                      lock_page(CURRENT_HIDDEN_PAGE);
++                      err = hidden_inode->i_mapping->a_ops->readpage(hidden_file,
++                                                                     CURRENT_HIDDEN_PAGE);
++                      if (err) {
++                              CURRENT_HIDDEN_PAGE = NULL;
++                              goto out_release;
++                      }
++                      wait_on_page(CURRENT_HIDDEN_PAGE);
++                      if (!Page_Uptodate(CURRENT_HIDDEN_PAGE)) {
++                              err = -EIO;
++                              goto out_release;
++                      }
++              }
++      }
++
++      /* map pages, get their addresses */
++      page_data = (char *) kmap(page);
++      FOR_EACH_PAGE
++              CURRENT_HIDDEN_PAGEDATA = (char *) kmap(CURRENT_HIDDEN_PAGE);
++
++      /* if decode_block could fail, then return error */
++      err = 0;
++      real_size = hidden_inode->i_size - (page->index << PAGE_CACHE_SHIFT);
++      if (real_size <= 0)
++              memset(page_data, 0, PAGE_CACHE_SIZE);
++      else if (real_size < PAGE_CACHE_SIZE) {
++              mini_fo_decode_block(hidden_page_data, page_data, real_size, inode, inode->i_sb, page->index);
++              memset(page_data + real_size, 0, PAGE_CACHE_SIZE - real_size);
++      } else
++              mini_fo_decode_block(hidden_page_data, page_data, PAGE_CACHE_SIZE, inode, inode->i_sb, page->index);
++
++      FOR_EACH_PAGE
++              kunmap(CURRENT_HIDDEN_PAGE);
++      kunmap(page);
++
++ out_release:
++      FOR_EACH_PAGE
++              if (CURRENT_HIDDEN_PAGE)
++                      page_cache_release(CURRENT_HIDDEN_PAGE); /* undo read_cache_page */
++
++      FREE_PAGE_POINTERS(hidden_pages, num_hidden_pages);
++      FREE_PAGEDATA_POINTERS(hidden_pages_data, num_hidden_pages);
++
++ out:
++      if (err == 0)
++              SetPageUptodate(page);
++      else
++              ClearPageUptodate(page);
++
++      print_exit_status(err);
++      return err;
++}
++
++
++STATIC int
++mini_fo_readpage(file_t *file, page_t *page)
++{
++      int err;
++      print_entry_location();
++
++      err = mini_fo_do_readpage(file, page);
++
++      /*
++       * we have to unlock our page, b/c we _might_ have gotten a locked page.
++       * but we no longer have to wakeup on our page here, b/c UnlockPage does
++       * it
++       */
++      UnlockPage(page);
++
++      print_exit_status(err);
++      return err;
++}
++
++
++STATIC int
++mini_fo_prepare_write(file_t *file, page_t *page, unsigned from, unsigned to)
++{
++      int err = 0;
++
++      print_entry_location();
++
++      /*
++       * we call kmap(page) only here, and do the kunmap
++       * and the actual downcalls, including unlockpage and uncache
++       * in commit_write.
++       */
++      kmap(page);
++
++      /* fast path for whole page writes */
++      if (from == 0 && to == PAGE_CACHE_SIZE)
++              goto out;
++      /* read the page to "revalidate" our data */
++      /* call the helper function which doesn't unlock the page */
++      if (!Page_Uptodate(page))
++              err = mini_fo_do_readpage(file, page);
++
++ out:
++      print_exit_status(err);
++      return err;
++}
++
++
++
++STATIC int
++mini_fo_commit_write(file_t *file, page_t *page, unsigned from, unsigned to)
++{
++      int err = -ENOMEM;
++      inode_t *inode;
++      inode_t *hidden_inode;
++      page_t *hidden_page;
++      file_t *hidden_file = NULL;
++      loff_t pos;
++      unsigned bytes = to - from;
++      unsigned hidden_from, hidden_to, hidden_bytes;
++
++      print_entry_location();
++
++      inode = page->mapping->host; /* CPW: Moved below print_entry_location */
++      hidden_inode = itohi(inode);
++
++      ASSERT(file != NULL);
++      /*
++       * here we have a kmapped page, with data from the user copied
++       * into it.  we need to encode_block it, and then call the lower
++       * commit_write.  We also need to simulate same behavior of
++       * generic_file_write, and call prepare_write on the lower f/s first.
++       */
++#ifdef FIST_COUNT_WRITES
++      count_writes++;
++# endif /* FIST_COUNT_WRITES */
++
++      /* this is append and/or extend -- we can't have holes so fill them in */
++      if (page->index > (hidden_inode->i_size >> PAGE_CACHE_SHIFT)) {
++              page_t *tmp_page;
++              int index;
++              for (index = hidden_inode->i_size >> PAGE_CACHE_SHIFT; index < page->index; index++) {
++                      tmp_page = mini_fo_get1page(file, index);
++                      if (IS_ERR(tmp_page)) {
++                              err = PTR_ERR(tmp_page);
++                              goto out;
++                      }
++                      /* zero out the contents of the page at the appropriate offsets */
++                      memset((char*)page_address(tmp_page) + (inode->i_size & ~PAGE_CACHE_MASK), 0, PAGE_CACHE_SIZE - (inode->i_size & ~PAGE_CACHE_MASK));
++                      if (!(err = mini_fo_prepare_write(file, tmp_page, 0, PAGE_CACHE_SIZE)))
++                              err = mini_fo_commit_write(file, tmp_page, 0, PAGE_CACHE_SIZE);
++                      page_cache_release(tmp_page);
++                      if (err < 0)
++                              goto out;
++                      if (current->need_resched)
++                              schedule();
++              }
++      }
++
++      if (ftopd(file) != NULL)
++              hidden_file = ftohf(file);
++
++#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,16)
++      mutex_lock(&hidden_inode->i_mutex);
++#else
++      down(&hidden_inode->i_sem);
++#endif
++      /* find lower page (returns a locked page) */
++      hidden_page = grab_cache_page(hidden_inode->i_mapping, page->index);
++      if (!hidden_page)
++              goto out;
++
++#if FIST_ENCODING_BLOCKSIZE > 1
++#  error encoding_blocksize greater than 1 is not yet supported
++# endif /* FIST_ENCODING_BLOCKSIZE > 1 */
++
++      hidden_from = from & (~(FIST_ENCODING_BLOCKSIZE - 1));
++      hidden_to = ((to + FIST_ENCODING_BLOCKSIZE - 1) & (~(FIST_ENCODING_BLOCKSIZE - 1)));
++      if ((page->index << PAGE_CACHE_SHIFT) + to > hidden_inode->i_size) {
++
++              /*
++               * if this call to commit_write had introduced holes and the code
++               * for handling holes was invoked, then the beginning of this page
++               * must be zeroed out
++               * zero out bytes from 'size_of_file%pagesize' to 'from'.
++               */
++              if ((hidden_from - (inode->i_size & ~PAGE_CACHE_MASK)) > 0)
++                      memset((char*)page_address(page) + (inode->i_size & ~PAGE_CACHE_MASK), 0, hidden_from - (inode->i_size & ~PAGE_CACHE_MASK));
++
++      }
++      hidden_bytes = hidden_to - hidden_from;
++
++      /* call lower prepare_write */
++      err = -EINVAL;
++      if (hidden_inode->i_mapping &&
++          hidden_inode->i_mapping->a_ops &&
++          hidden_inode->i_mapping->a_ops->prepare_write)
++              err = hidden_inode->i_mapping->a_ops->prepare_write(hidden_file,
++                                                                  hidden_page,
++                                                                  hidden_from,
++                                                                  hidden_to);
++      if (err)
++              /* don't leave locked pages behind, esp. on an ENOSPC */
++              goto out_unlock;
++
++      fist_dprint(8, "%s: encoding %d bytes\n", __FUNCTION__, hidden_bytes);
++      mini_fo_encode_block((char *) page_address(page) + hidden_from, (char*) page_address(hidden_page) + hidden_from, hidden_bytes, inode, inode->i_sb, page->index);
++      /* if encode_block could fail, then goto unlock and return error */
++
++      /* call lower commit_write */
++      err = hidden_inode->i_mapping->a_ops->commit_write(hidden_file,
++                                                         hidden_page,
++                                                         hidden_from,
++                                                         hidden_to);
++
++      if (err < 0)
++              goto out_unlock;
++
++      err = bytes;    /* convert error to no. of bytes */
++
++      inode->i_blocks = hidden_inode->i_blocks;
++      /* we may have to update i_size */
++      pos = (page->index << PAGE_CACHE_SHIFT) + to;
++      if (pos > inode->i_size)
++              inode->i_size = pos;
++
++      /*
++       * update mtime and ctime of lower level file system
++       * mini_fo' mtime and ctime are updated by generic_file_write
++       */
++      hidden_inode->i_mtime = hidden_inode->i_ctime = CURRENT_TIME;
++
++      mark_inode_dirty_sync(inode);
++
++ out_unlock:
++      UnlockPage(hidden_page);
++      page_cache_release(hidden_page);
++      kunmap(page);           /* kmap was done in prepare_write */
++ out:
++      /* we must set our page as up-to-date */
++      if (err < 0)
++              ClearPageUptodate(page);
++      else
++              SetPageUptodate(page);
++
++#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,16)
++      mutex_unlock(&hidden_inode->i_mutex);
++#else
++      up(&hidden_inode->i_sem);
++#endif
++      print_exit_status(err);
++      return err;                     /* assume all is ok */
++}
++
++
++STATIC int
++mini_fo_bmap(struct address_space *mapping, long block)
++{
++      int err = 0;
++      inode_t *inode;
++      inode_t *hidden_inode;
++
++      print_entry_location();
++
++      inode = (inode_t *) mapping->host;
++      hidden_inode = itohi(inode);
++
++      if (hidden_inode->i_mapping->a_ops->bmap)
++              err = hidden_inode->i_mapping->a_ops->bmap(hidden_inode->i_mapping, block);
++      print_exit_location();
++      return err;
++}
++
++
++/*
++ * This function is copied verbatim from mm/filemap.c.
++ * XXX: It should be simply moved to some header file instead -- bug Al about it!
++ */
++static inline int sync_page(struct page *page)
++{
++      struct address_space *mapping = page->mapping;
++
++      if (mapping && mapping->a_ops && mapping->a_ops->sync_page)
++              return mapping->a_ops->sync_page(page);
++      return 0;
++}
++
++
++/*
++ * XXX: we may not need this function if not FIST_FILTER_DATA.
++ * FIXME: for FIST_FILTER_SCA, get all lower pages and sync them each.
++ */
++STATIC int
++mini_fo_sync_page(page_t *page)
++{
++      int err = 0;
++      inode_t *inode;
++      inode_t *hidden_inode;
++      page_t *hidden_page;
++
++      print_entry_location();
++
++      inode = page->mapping->host; /* CPW: Moved below print_entry_location */
++      hidden_inode = itohi(inode);
++
++      /* find lower page (returns a locked page) */
++      hidden_page = grab_cache_page(hidden_inode->i_mapping, page->index);
++      if (!hidden_page)
++              goto out;
++
++      err = sync_page(hidden_page);
++
++      UnlockPage(hidden_page);        /* b/c grab_cache_page locked it */
++      page_cache_release(hidden_page); /* b/c grab_cache_page increased refcnt */
++
++ out:
++      print_exit_status(err);
++      return err;
++}
+--- /dev/null
++++ b/fs/mini_fo/README
+@@ -0,0 +1,163 @@
++README for the mini_fo overlay file system
++=========================================
++
++
++WHAT IS MINI_FO?
++----------------
++
++mini_fo is a virtual kernel file system that can make read-only
++file systems writable. This is done by redirecting modifying operations
++to a writeable location called "storage directory", and leaving the
++original data in the "base directory" untouched. When reading, the
++file system merges the modifed and original data so that only the
++newest versions will appear. This occurs transparently to the user,
++who can access the data like on any other read-write file system.
++
++Base and storage directories may be located on the same or on
++different partitions and may be of different file system types. While
++the storage directory obviously needs to be writable, the base may or
++may not be writable, what doesn't matter as it will no be modified
++anyway.
++
++
++WHAT IS GOOD FOR?
++-----------------
++
++The primary purpose of the mini_fo file system is to allow easy
++software updates to embedded systems, that often store their root
++file system in a read-only flash file system, but there are many
++more as for example sandboxing, or for allowing live-cds to
++permanently store information.
++
++
++BUILDING
++--------
++This should be simple. Adjust the Makefile to point to the correct
++kernel headers you want to build the module for. Then:
++
++    # make
++
++should build "mini_fo.o" for a 2.4 kernel or "mini_fo.ko" for a 2.6
++kernel.
++
++If you are building the module for you current kernel, you can install
++the module (as root):
++
++    # make install
++
++or uninstall with
++
++    # make uninstall
++
++
++USING THE FILE SYSTEM
++--------------------
++
++the general mount syntax is:
++
++   mount -t mini_fo -o base=<base directory>,sto=<storage directory>\
++                            <base directory> <mount point>
++
++Example:
++
++You have mounted a cdrom to /mnt/cdrom and want to modifiy some files
++on it:
++
++load the module (as root)
++
++    # insmod mini_fo.o for a 2.4 kernel or
++
++    # insmod mini_fo.ko for a 2.6 kernel
++
++
++create a storage dir in tmp and a mountpoint for mini_fo:
++
++    # mkdir /tmp/sto
++    # mkdir /mnt/mini_fo
++
++and mount the mini_fo file system:
++
++    # mount -t mini_fo -o base=/mnt/cdrom,sto=/tmp/sto /mnt/cdrom /mnt/mini_fo
++
++
++Now the data stored on the cd can be accessed via the mini_fo
++mountpoint just like any read-write file system, files can be modified
++and deleted, new ones can be created and so on. When done unmount the
++file system:
++
++    # unmount /mnt/mini_fo
++
++Note that if the file system is mounted again using the same storage
++file system, of course it will appear in the modified state again. If
++you remount it using an new empty storage directory, it will be
++unmodified. Therefore by executing:
++
++    # cd /tmp/sto
++    # rm -rf *
++
++you can nuke all the changes you made to the original file system. But
++ remember NEVER do this while the mini_fo file system is mounted!
++
++
++Alternatively you can use the mini_fo-overlay bash script, that
++simplifies managing mini_fo mounts. See TOOLS Section.
++
++
++TOOLS
++-----
++
++mini_fo-merge (experimental):
++
++This is a bash script that will merge changes contained in the storage
++directory back to the base directory. This allows mini_fo to function
++as a cache file system by overlaying a slow (network, ...) file system
++and using a fast (ramdisk, ...) as storage. When done, changes can be
++merged back to the (slow) base with mini_fo-merge. See "mini_fo-merge
++-h" for details.
++
++It can be usefull for merging changes back after a successfull test
++(patches, software updates...)
++
++
++mini_fo-overlay:
++
++This bash script simplifies managing one or more mini_fo mounts. For
++overlaying a directory called "basedir1", you can just call:
++
++    # mini_fo-overlay basedir1
++
++This will mount mini_fo with "basedir1" as base, "/tmp/sto-basedir1/"
++as storage to "/mnt/mini_fo-basedir1/". It has more options though,
++type "mini_fo-overlay -h" for details.
++
++
++DOCUMENTATION, REPORTING BUGS, GETTING HELP
++-------------------------------------------
++
++Please visit the mini_fo project page at:
++
++http://www.denx.de/twiki/bin/view/Know/MiniFOHome
++
++
++WARNINGS
++--------
++
++Never modify the base or the storage directorys while the mini_fo
++file system is mounted, or you might crash you system. Simply accessing
++and reading should not cause any trouble.
++
++Exporting a mini_fo mount point via NFS has not been tested, and may
++or may not work.
++
++Check the RELEASE_NOTES for details on bugs and features.
++
++
++
++Copyright (C) 2004, 2005 Markus Klotzbuecher <mk@creamnet.de>
++
++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.
++
++
+--- /dev/null
++++ b/fs/mini_fo/RELEASE_NOTES
+@@ -0,0 +1,111 @@
++Release:      mini_fo-0.6.1 (v0-6-1)
++Date:         21.09.2005
++
++
++Changes:
++--------
++v0-6-1:
++
++- bugfixes (see ChangeLog)
++
++- two helper scripts "mini_fo_merge" and "mini_fo_overlay" (see
++  README for details).
++
++v0-6-0:
++
++- Support for 2.4 and 2.6 (see Makefile)
++
++- Partial hard link support (creating works as expected, but already
++  existing links in the base file system will be treated as if they
++  were individual files).
++
++- Various bugfixes and cleanups.
++
++
++v0-6-0-pre1:
++
++- This is mini_fo-0-6-0-pre1! This release is a complete rewrite of
++  many vital mini_fo parts such as the old whiteout list code which
++  has been replaced by the new META subsystem.
++
++- Light weight directory renaming implemented. This means if a
++  directory is renamed via the mini_fo filesystem this will no longer
++  result in a complete copy in storage, instead only one empty
++  directory will be created. All base filed contained in the original
++  directory stay there until modified.
++
++- Special files (creating, renaming, deleting etc.) now working.
++
++- Many bugfixes and cleanup, mini_fo is now a lot more stable.
++
++
++v0-5-10:
++
++- Final release of the 0-5-* versions. Next will be a complete rewrite
++  of many features. This release contains several bugfixes related to
++  directory renaming.
++
++
++v0-5-10-pre6:
++
++- Lots of cleanup and several bugfixes related to directory deleting
++
++- Directory renaming suddenly works, what is most likely due to the
++  fact tha that "mv" is smart: if the classic rename doesn't work it
++  will assume that source and target file are on different fs and will
++  copy the directory and try to remove the source directory. Until
++  directory removing wasn't implemented, it would fail to do this and
++  rollback.
++  So, directory renaming works for now, but it doesn't yet do what you
++  would expect from a overlay fs, so use with care.
++
++
++v0-5-10-pre5:
++
++- implemented directory deleting
++- made parsing of mount options more stable
++- New format of mount options! (See README)
++- I can't reproduce the unknown panic with 2.4.25 anymore, so I'll
++  happily assume it never existed!
++
++
++Implemented features:
++---------------------
++
++- creating hard links (see BUGS on already existing hard links)
++- lightweight directory renaming
++- renaming device files, pipes, sockets, etc.
++- creating, renaming, deleting of special files
++- deleting directorys
++- general directory reading (simple "ls" )
++- creating files in existing directorys
++- creating directorys
++- renaming files.
++- reading and writing files (involves opening)
++- appending to files (creates copy in storage)
++- deleting files
++- llseek works too, what allows editors to work
++- persistency (a deleted file stay deleted over remounts)
++- use of symbolic links
++- creating of device files
++
++
++Not (yet) implemented features:
++-------------------------------
++
++- full hard link support.
++
++
++
++BUGS:
++-----
++
++Hard links in the base file system will be treated as individual
++files, not as links to one inode.
++
++The main problem with hard links isn't allowing to create them, but
++their pure existence. If you modify a base hard link, the changes made
++will only show up on this link, the other link will remain in the
++original state. I hope to fix this someday. Please note that this does
++not effect the special hard links '.' and '..', that are handled
++seperately by the lower fs.
+--- /dev/null
++++ b/fs/mini_fo/state.c
+@@ -0,0 +1,620 @@
++/*
++ * Copyright (C) 2005 Markus Klotzbuecher <mk@creamnet.de>
++ *
++ * 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.
++ */
++
++#ifdef HAVE_CONFIG_H
++# include <config.h>
++#endif /* HAVE_CONFIG_H */
++
++#include "fist.h"
++#include "mini_fo.h"
++
++
++/* create the storage file, setup new states */
++#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,0)
++int create_sto_reg_file(dentry_t *dentry, int mode, struct nameidata *nd)
++#else
++int create_sto_reg_file(dentry_t *dentry, int mode)
++#endif
++{
++      int err = 0;
++      inode_t *dir;
++      dentry_t *hidden_sto_dentry;
++      dentry_t *hidden_sto_dir_dentry;
++
++      if(exists_in_storage(dentry)) {
++              printk(KERN_CRIT "mini_fo: create_sto_file: wrong type or state.\n");
++              err = -EINVAL;
++              goto out;
++      }
++      err = get_neg_sto_dentry(dentry);
++
++      if (err) {
++              printk(KERN_CRIT "mini_fo: create_sto_file: ERROR getting neg. sto dentry.\n");
++              goto out;
++      }
++
++      dir = dentry->d_parent->d_inode;
++      hidden_sto_dentry = dtohd2(dentry);
++
++      /* lock parent */
++      hidden_sto_dir_dentry = dget(hidden_sto_dentry->d_parent);
++
++#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,16)
++      mutex_lock(&hidden_sto_dir_dentry->d_inode->i_mutex);
++#else
++        down(&hidden_sto_dir_dentry->d_inode->i_sem);
++#endif
++
++      err = PTR_ERR(hidden_sto_dir_dentry);
++        if (IS_ERR(hidden_sto_dir_dentry))
++                goto out;
++
++#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,0)
++      err = vfs_create(hidden_sto_dir_dentry->d_inode,
++                       hidden_sto_dentry,
++                       mode, nd);
++#else
++      err = vfs_create(hidden_sto_dir_dentry->d_inode,
++                       hidden_sto_dentry,
++                       mode);
++#endif
++        if(err) {
++              printk(KERN_CRIT "mini_fo: create_sto_file: ERROR creating sto file.\n");
++                goto out_lock;
++      }
++
++      if(!dtohd2(dentry)->d_inode) {
++              printk(KERN_CRIT "mini_fo: create_sto_file: ERROR creating sto file [2].\n");
++                err = -EINVAL;
++                goto out_lock;
++        }
++
++        /* interpose the new inode */
++        if(dtost(dentry) == DELETED) {
++                dtost(dentry) = DEL_REWRITTEN;
++                err = mini_fo_tri_interpose(NULL, hidden_sto_dentry, dentry, dir->i_sb, 0);
++                if(err)
++                        goto out_lock;
++        }
++        else if(dtost(dentry) == NON_EXISTANT) {
++                dtost(dentry) = CREATED;
++                err = mini_fo_tri_interpose(dtohd(dentry), hidden_sto_dentry, dentry, dir->i_sb, 0);
++                if(err)
++                        goto out_lock;
++        }
++        else if(dtost(dentry) == UNMODIFIED) {
++                dtost(dentry) = MODIFIED;
++                /* interpose on new inode */
++                if(itohi2(dentry->d_inode) != NULL) {
++                        printk(KERN_CRIT "mini_fo: create_sto_file: invalid inode detected.\n");
++                        err = -EINVAL;
++                        goto out_lock;
++                }
++                itohi2(dentry->d_inode) = igrab(dtohd2(dentry)->d_inode);
++      }
++      fist_copy_attr_timesizes(dentry->d_parent->d_inode,
++                               hidden_sto_dir_dentry->d_inode);
++
++ out_lock:
++#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,16)
++      mutex_unlock(&hidden_sto_dir_dentry->d_inode->i_mutex);
++#else
++      up(&hidden_sto_dir_dentry->d_inode->i_sem);
++#endif
++        dput(hidden_sto_dir_dentry);
++ out:
++      return err;
++}
++
++/* create the sto dir, setup states */
++int create_sto_dir(dentry_t *dentry, int mode)
++{
++      int err = 0;
++      inode_t *dir;
++      dentry_t *hidden_sto_dentry;
++        dentry_t *hidden_sto_dir_dentry;
++
++      /* had to take the "!S_ISDIR(mode))" check out, because it failed */
++      if(exists_in_storage(dentry)) {
++                printk(KERN_CRIT "mini_fo: create_sto_dir: wrong type or state.\\
++n");
++                err = -EINVAL;
++                goto out;
++        }
++
++      err = get_neg_sto_dentry(dentry);
++      if(err) {
++              err = -EINVAL;
++              goto out;
++      }
++
++      dir = dentry->d_parent->d_inode;
++      hidden_sto_dentry = dtohd2(dentry);
++
++      /* was: hidden_sto_dir_dentry = lock_parent(hidden_sto_dentry); */
++      hidden_sto_dir_dentry = dget(hidden_sto_dentry->d_parent);
++
++#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,16)
++      mutex_lock(&hidden_sto_dir_dentry->d_inode->i_mutex);
++#else
++      down(&hidden_sto_dir_dentry->d_inode->i_sem);
++#endif
++
++      err = PTR_ERR(hidden_sto_dir_dentry);
++      if (IS_ERR(hidden_sto_dir_dentry))
++              goto out;
++
++      err = vfs_mkdir(hidden_sto_dir_dentry->d_inode,
++                      hidden_sto_dentry,
++                      mode);
++      if(err) {
++              printk(KERN_CRIT "mini_fo: create_sto_dir: ERROR creating sto dir.\n");
++              goto out_lock;
++      }
++
++      if(!dtohd2(dentry)->d_inode) {
++              printk(KERN_CRIT "mini_fo: create_sto_dir: ERROR creating sto dir [2].\n");
++              err = -EINVAL;
++              goto out_lock;
++      }
++
++      /* interpose the new inode */
++      if(dtost(dentry) == DELETED) {
++              dtost(dentry) = DEL_REWRITTEN;
++              err = mini_fo_tri_interpose(NULL, hidden_sto_dentry, dentry, dir->i_sb, 0);
++              if(err)
++                      goto out_lock;
++      }
++      else if(dtopd(dentry)->state == NON_EXISTANT) {
++              dtopd(dentry)->state = CREATED;
++              err = mini_fo_tri_interpose(dtohd(dentry), hidden_sto_dentry, dentry, dir->i_sb, 0);
++              if(err)
++                      goto out_lock;
++      }
++      else if(dtopd(dentry)->state == UNMODIFIED) {
++              dtopd(dentry)->state = MODIFIED;
++              /* interpose on new inode */
++              if(itohi2(dentry->d_inode) != NULL) {
++                      printk(KERN_CRIT "mini_fo:  create_sto_dir: ERROR, invalid inode detected.\n");
++                      err = -EINVAL;
++                      goto out_lock;
++              }
++              itohi2(dentry->d_inode) = igrab(dtohd2(dentry)->d_inode);
++      }
++
++      fist_copy_attr_timesizes(dir, hidden_sto_dir_dentry->d_inode);
++
++      /* initalize the wol list */
++      itopd(dentry->d_inode)->deleted_list_size = -1;
++      itopd(dentry->d_inode)->renamed_list_size = -1;
++      meta_build_lists(dentry);
++
++
++ out_lock:
++      /* was: unlock_dir(hidden_sto_dir_dentry); */
++#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,16)
++      mutex_unlock(&hidden_sto_dir_dentry->d_inode->i_mutex);
++#else
++      up(&hidden_sto_dir_dentry->d_inode->i_sem);
++#endif
++      dput(hidden_sto_dir_dentry);
++ out:
++      return err;
++}
++
++#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,0)
++int create_sto_nod(dentry_t *dentry, int mode, dev_t dev)
++#else
++int create_sto_nod(dentry_t *dentry, int mode, int dev)
++#endif
++{
++      int err = 0;
++      inode_t *dir;
++      dentry_t *hidden_sto_dentry;
++      dentry_t *hidden_sto_dir_dentry;
++
++      if(exists_in_storage(dentry)) {
++              err = -EEXIST;
++              goto out;
++      }
++      err = get_neg_sto_dentry(dentry);
++
++      if (err) {
++                printk(KERN_CRIT "mini_fo: create_sto_nod: ERROR getting neg. sto dentry.\n");
++                goto out;
++        }
++
++      dir = dentry->d_parent->d_inode;
++      hidden_sto_dentry = dtohd2(dentry);
++
++      /* lock parent */
++      hidden_sto_dir_dentry = dget(hidden_sto_dentry->d_parent);
++
++#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,16)
++      mutex_lock(&hidden_sto_dir_dentry->d_inode->i_mutex);
++#else
++      down(&hidden_sto_dir_dentry->d_inode->i_sem);
++#endif
++
++      err = PTR_ERR(hidden_sto_dir_dentry);
++      if (IS_ERR(hidden_sto_dir_dentry))
++              goto out;
++
++      err = vfs_mknod(hidden_sto_dir_dentry->d_inode, hidden_sto_dentry, mode, dev);
++      if(err)
++              goto out_lock;
++
++      if(!dtohd2(dentry)->d_inode) {
++              printk(KERN_CRIT "mini_fo: create_sto_nod: creating storage inode failed [1].\n");
++              err = -EINVAL; /* return something indicating failure */
++              goto out_lock;
++      }
++
++      /* interpose the new inode */
++      if(dtost(dentry) == DELETED) {
++              dtost(dentry) = DEL_REWRITTEN;
++              err = mini_fo_tri_interpose(NULL, hidden_sto_dentry, dentry, dir->i_sb, 0);
++              if(err)
++                      goto out_lock;
++      }
++      else if(dtost(dentry) == NON_EXISTANT) {
++              dtost(dentry) = CREATED;
++              err = mini_fo_tri_interpose(dtohd(dentry), hidden_sto_dentry, dentry, dir->i_sb, 0);
++              if(err)
++                      goto out_lock;
++      }
++      else if(dtost(dentry) == UNMODIFIED) {
++              dtost(dentry) = MODIFIED;
++              /* interpose on new inode */
++              if(itohi2(dentry->d_inode) != NULL) {
++                      printk(KERN_CRIT "mini_fo: create_sto_nod: error, invalid inode detected.\n");
++                      err = -EINVAL;
++                      goto out_lock;
++              }
++              itohi2(dentry->d_inode) = igrab(dtohd2(dentry)->d_inode);
++      }
++
++      fist_copy_attr_timesizes(dir, hidden_sto_dir_dentry->d_inode);
++
++ out_lock:
++#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,16)
++      mutex_unlock(&hidden_sto_dir_dentry->d_inode->i_mutex);
++#else
++      up(&hidden_sto_dir_dentry->d_inode->i_sem);
++#endif
++      dput(hidden_sto_dir_dentry);
++ out:
++      return err;
++}
++
++
++/* unimplemented (and possibly not usefull):
++
++   nondir-del_to_del_rew
++   nondir-non_exist_to_creat
++
++   dir-unmod_to_del
++   dir-mod_to_del
++   dir-creat_to_del
++   dir-del_rew_to_del
++   dir-del_to_del_rew
++   dir-non_exist_to_creat
++*/
++
++
++/* bring a file of any type from state UNMODIFIED to MODIFIED */
++int nondir_unmod_to_mod(dentry_t *dentry, int cp_flag)
++{
++      int err = 0;
++      struct vfsmount *tgt_mnt;
++      struct vfsmount *src_mnt;
++      dentry_t *tgt_dentry;
++      dentry_t *src_dentry;
++      dentry_t *hidden_sto_dentry;
++      dentry_t *hidden_sto_dir_dentry;
++
++      check_mini_fo_dentry(dentry);
++
++      if((dtost(dentry) != UNMODIFIED) ||
++         S_ISDIR(dentry->d_inode->i_mode)) {
++              printk(KERN_CRIT "mini_fo: nondir_unmod_to_mod: \
++                                  wrong type or state.\n");
++              err = -1;
++              goto out;
++      }
++      err = get_neg_sto_dentry(dentry);
++
++      if (err) {
++              printk(KERN_CRIT "mini_fo: nondir_unmod_to_mod: \
++                                  ERROR getting neg. sto dentry.\n");
++              goto out;
++      }
++
++      /* create sto file */
++      hidden_sto_dentry = dtohd2(dentry);
++
++      /* lock parent */
++      hidden_sto_dir_dentry = dget(hidden_sto_dentry->d_parent);
++
++#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,16)
++      mutex_lock(&hidden_sto_dir_dentry->d_inode->i_mutex);
++#else
++        down(&hidden_sto_dir_dentry->d_inode->i_sem);
++#endif
++
++      err = PTR_ERR(hidden_sto_dir_dentry);
++        if (IS_ERR(hidden_sto_dir_dentry))
++                goto out;
++
++      /* handle different types of nondirs */
++      if(S_ISCHR(dentry->d_inode->i_mode) ||
++         S_ISBLK(dentry->d_inode->i_mode)) {
++              err = vfs_mknod(hidden_sto_dir_dentry->d_inode,
++                              hidden_sto_dentry,
++                              dtohd(dentry)->d_inode->i_mode,
++                              dtohd(dentry)->d_inode->i_rdev);
++      }
++
++      else if(S_ISREG(dentry->d_inode->i_mode)) {
++
++#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,0)
++              err = vfs_create(hidden_sto_dir_dentry->d_inode,
++                               hidden_sto_dentry,
++                               dtohd(dentry)->d_inode->i_mode, NULL);
++#else
++              err = vfs_create(hidden_sto_dir_dentry->d_inode,
++                               hidden_sto_dentry,
++                               dtohd(dentry)->d_inode->i_mode);
++#endif
++      }
++        if(err) {
++              printk(KERN_CRIT "mini_fo: nondir_unmod_to_mod: \
++                                  ERROR creating sto file.\n");
++                goto out_lock;
++      }
++
++      /* interpose on new inode */
++      if(itohi2(dentry->d_inode) != NULL) {
++              printk(KERN_CRIT "mini_fo: nondir_unmod_to_mod: \
++                                  ERROR, invalid inode detected.\n");
++              err = -EINVAL;
++              goto out_lock;
++      }
++
++      itohi2(dentry->d_inode) = igrab(dtohd2(dentry)->d_inode);
++
++        fist_copy_attr_timesizes(dentry->d_parent->d_inode,
++                               hidden_sto_dir_dentry->d_inode);
++      dtost(dentry) = MODIFIED;
++
++      /* copy contents if regular file and cp_flag = 1 */
++      if((cp_flag == 1) && S_ISREG(dentry->d_inode->i_mode)) {
++
++              /* unlock first */
++#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,16)
++              mutex_unlock(&hidden_sto_dir_dentry->d_inode->i_mutex);
++#else
++              up(&hidden_sto_dir_dentry->d_inode->i_sem);
++#endif
++
++              dput(hidden_sto_dir_dentry);
++
++              tgt_dentry = dtohd2(dentry);
++              tgt_mnt = stopd(dentry->d_inode->i_sb)->hidden_mnt2;
++              src_dentry = dtohd(dentry);
++              src_mnt = stopd(dentry->d_inode->i_sb)->hidden_mnt;
++
++              err = mini_fo_cp_cont(tgt_dentry, tgt_mnt,
++                                    src_dentry, src_mnt);
++              if(err) {
++                      printk(KERN_CRIT "mini_fo: nondir_unmod_to_mod: \
++                                          ERROR copying contents.\n");
++              }
++              goto out;
++      }
++
++ out_lock:
++#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,16)
++      mutex_unlock(&hidden_sto_dir_dentry->d_inode->i_mutex);
++#else
++      up(&hidden_sto_dir_dentry->d_inode->i_sem);
++#endif
++        dput(hidden_sto_dir_dentry);
++ out:
++      return err;
++}
++
++/* this function is currently identical to nondir_creat_to_del */
++int nondir_del_rew_to_del(dentry_t *dentry)
++{
++      return nondir_creat_to_del(dentry);
++}
++
++int nondir_creat_to_del(dentry_t *dentry)
++{
++      int err = 0;
++
++      inode_t *hidden_sto_dir_inode;
++      dentry_t *hidden_sto_dir_dentry;
++      dentry_t *hidden_sto_dentry;
++
++      check_mini_fo_dentry(dentry);
++
++      /* for now this function serves for both state DEL_REWRITTEN and
++       * CREATED */
++      if(!(dtost(dentry) == CREATED || (dtost(dentry) == DEL_REWRITTEN)) ||
++         S_ISDIR(dentry->d_inode->i_mode)) {
++              printk(KERN_CRIT "mini_fo: nondir_mod_to_del/del_rew_to_del: \
++                                  wrong type or state.\n");
++              err = -1;
++              goto out;
++      }
++
++      hidden_sto_dir_inode = itohi2(dentry->d_parent->d_inode);
++      hidden_sto_dentry = dtohd2(dentry);
++
++      /* was: hidden_sto_dir_dentry = lock_parent(hidden_sto_dentry);*/
++      hidden_sto_dir_dentry = dget(hidden_sto_dentry->d_parent);
++
++#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,16)
++      mutex_lock(&hidden_sto_dir_dentry->d_inode->i_mutex);
++#else
++      down(&hidden_sto_dir_dentry->d_inode->i_sem);
++#endif
++
++      /* avoid destroying the hidden inode if the file is in use */
++      dget(hidden_sto_dentry);
++      err = vfs_unlink(hidden_sto_dir_inode, hidden_sto_dentry);
++      dput(hidden_sto_dentry);
++      if(!err)
++              d_delete(hidden_sto_dentry);
++
++      /* propagate number of hard-links */
++      dentry->d_inode->i_nlink = itohi2(dentry->d_inode)->i_nlink;
++
++      dtost(dentry) = NON_EXISTANT;
++
++      /* was: unlock_dir(hidden_sto_dir_dentry); */
++#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,16)
++      mutex_unlock(&hidden_sto_dir_dentry->d_inode->i_mutex);
++#else
++      up(&hidden_sto_dir_dentry->d_inode->i_sem);
++#endif
++      dput(hidden_sto_dir_dentry);
++
++ out:
++      return err;
++}
++
++int nondir_mod_to_del(dentry_t *dentry)
++{
++      int err;
++      dentry_t *hidden_sto_dentry;
++      inode_t *hidden_sto_dir_inode;
++      dentry_t *hidden_sto_dir_dentry;
++
++      check_mini_fo_dentry(dentry);
++
++      if(dtost(dentry) != MODIFIED ||
++         S_ISDIR(dentry->d_inode->i_mode)) {
++              printk(KERN_CRIT "mini_fo: nondir_mod_to_del: \
++                                  wrong type or state.\n");
++              err = -1;
++              goto out;
++      }
++
++      hidden_sto_dir_inode = itohi2(dentry->d_parent->d_inode);
++      hidden_sto_dentry = dtohd2(dentry);
++
++      /* was hidden_sto_dir_dentry = lock_parent(hidden_sto_dentry); */
++      hidden_sto_dir_dentry = dget(hidden_sto_dentry->d_parent);
++
++#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,16)
++      mutex_lock(&hidden_sto_dir_dentry->d_inode->i_mutex);
++#else
++      down(&hidden_sto_dir_dentry->d_inode->i_sem);
++#endif
++
++      /* avoid destroying the hidden inode if the file is in use */
++      dget(hidden_sto_dentry);
++      err = vfs_unlink(hidden_sto_dir_inode, hidden_sto_dentry);
++      dput(hidden_sto_dentry);
++      if(!err)
++              d_delete(hidden_sto_dentry);
++
++      /* propagate number of hard-links */
++      dentry->d_inode->i_nlink = itohi2(dentry->d_inode)->i_nlink;
++
++      /* dput base dentry, this will relase the inode and free the
++       * dentry, as we will never need it again. */
++      dput(dtohd(dentry));
++      dtohd(dentry) = NULL;
++      dtost(dentry) = DELETED;
++
++      /* add deleted file to META-file */
++      meta_add_d_entry(dentry->d_parent,
++                       dentry->d_name.name,
++                       dentry->d_name.len);
++
++      /* was: unlock_dir(hidden_sto_dir_dentry); */
++#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,16)
++      mutex_unlock(&hidden_sto_dir_dentry->d_inode->i_mutex);
++#else
++      up(&hidden_sto_dir_dentry->d_inode->i_sem);
++#endif
++      dput(hidden_sto_dir_dentry);
++
++ out:
++      return err;
++}
++
++int nondir_unmod_to_del(dentry_t *dentry)
++{
++      int err = 0;
++
++      check_mini_fo_dentry(dentry);
++
++      if(dtost(dentry) != UNMODIFIED ||
++         S_ISDIR(dentry->d_inode->i_mode)) {
++              printk(KERN_CRIT "mini_fo: nondir_unmod_to_del: \
++                                  wrong type or state.\n");
++              err = -1;
++              goto out;
++      }
++
++       /* next we have to get a negative dentry for the storage file */
++      err = get_neg_sto_dentry(dentry);
++
++      if(err)
++              goto out;
++
++      /* add deleted file to META lists */
++      err = meta_add_d_entry(dentry->d_parent,
++                             dentry->d_name.name,
++                             dentry->d_name.len);
++
++      if(err)
++              goto out;
++
++      /* dput base dentry, this will relase the inode and free the
++       * dentry, as we will never need it again. */
++      dput(dtohd(dentry));
++      dtohd(dentry) = NULL;
++      dtost(dentry) = DELETED;
++
++ out:
++      return err;
++}
++
++/* bring a dir from state UNMODIFIED to MODIFIED */
++int dir_unmod_to_mod(dentry_t *dentry)
++{
++      int err;
++
++      check_mini_fo_dentry(dentry);
++
++      if(dtost(dentry) != UNMODIFIED ||
++         !S_ISDIR(dentry->d_inode->i_mode)) {
++              printk(KERN_CRIT "mini_fo: dir_unmod_to_mod: \
++                                  wrong type or state.\n");
++              err = -1;
++              goto out;
++      }
++
++      /* this creates our dir incl. sto. structure */
++      err = build_sto_structure(dentry->d_parent, dentry);
++      if(err) {
++              printk(KERN_CRIT "mini_fo: dir_unmod_to_mod: \
++                                  build_sto_structure failed.\n");
++              goto out;
++      }
++ out:
++      return err;
++}
++
+--- /dev/null
++++ b/fs/mini_fo/super.c
+@@ -0,0 +1,281 @@
++/*
++ * Copyright (c) 1997-2003 Erez Zadok
++ * Copyright (c) 2001-2003 Stony Brook University
++ *
++ * For specific licensing information, see the COPYING file distributed with
++ * this package, or get one from ftp://ftp.filesystems.org/pub/fist/COPYING.
++ *
++ * This Copyright notice must be kept intact and distributed with all
++ * fistgen sources INCLUDING sources generated by fistgen.
++ */
++/*
++ * Copyright (C) 2004, 2005 Markus Klotzbuecher <mk@creamnet.de>
++ *
++ * 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.
++ */
++
++/*
++ *  $Id$
++ */
++
++#ifdef HAVE_CONFIG_H
++# include <config.h>
++#endif
++
++#include "fist.h"
++#include "mini_fo.h"
++
++
++STATIC void
++mini_fo_read_inode(inode_t *inode)
++{
++      static struct address_space_operations mini_fo_empty_aops;
++
++      __itopd(inode) = kmalloc(sizeof(struct mini_fo_inode_info), GFP_KERNEL);
++      if (!itopd(inode)) {
++              printk("<0>%s:%s:%d: No kernel memory!\n", __FILE__, __FUNCTION__, __LINE__);
++              ASSERT(NULL);
++      }
++      itohi(inode) = NULL;
++      itohi2(inode) = NULL;
++
++#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,0)
++      inode->i_version++;
++#else
++      inode->i_version = ++event;     /* increment inode version */
++#endif
++      inode->i_op = &mini_fo_main_iops;
++      inode->i_fop = &mini_fo_main_fops;
++#if 0
++      /*
++       * XXX: To export a file system via NFS, it has to have the
++       * FS_REQUIRES_DEV flag, so turn it on.  But should we inherit it from
++       * the lower file system, or can we allow our file system to be exported
++       * even if the lower one cannot be natively exported.
++       */
++      inode->i_sb->s_type->fs_flags |= FS_REQUIRES_DEV;
++      /*
++       * OK, the above was a hack, which is now turned off because it may
++       * cause a panic/oops on some systems.  The correct way to export a
++       * "nodev" filesystem is via using nfs-utils > 1.0 and the "fsid=" export
++       * parameter, which requires 2.4.20 or later.
++       */
++#endif
++      /* I don't think ->a_ops is ever allowed to be NULL */
++      inode->i_mapping->a_ops = &mini_fo_empty_aops;
++}
++
++
++#if defined(FIST_DEBUG) || defined(FIST_FILTER_SCA)
++/*
++ * No need to call write_inode() on the lower inode, as it
++ * will have been marked 'dirty' anyway. But we might need
++ * to write some of our own stuff to disk.
++ */
++STATIC void
++mini_fo_write_inode(inode_t *inode, int sync)
++{
++      print_entry_location();
++      print_exit_location();
++}
++#endif /* defined(FIST_DEBUG) || defined(FIST_FILTER_SCA) */
++
++
++STATIC void
++mini_fo_put_inode(inode_t *inode)
++{
++      /*
++       * This is really funky stuff:
++       * Basically, if i_count == 1, iput will then decrement it and this inode will be destroyed.
++       * It is currently holding a reference to the hidden inode.
++       * Therefore, it needs to release that reference by calling iput on the hidden inode.
++       * iput() _will_ do it for us (by calling our clear_inode), but _only_ if i_nlink == 0.
++       * The problem is, NFS keeps i_nlink == 1 for silly_rename'd files.
++       * So we must for our i_nlink to 0 here to trick iput() into calling our clear_inode.
++       */
++      if (atomic_read(&inode->i_count) == 1)
++              inode->i_nlink = 0;
++}
++
++
++#if defined(FIST_DEBUG) || defined(FIST_FILTER_SCA)
++/*
++ * we now define delete_inode, because there are two VFS paths that may
++ * destroy an inode: one of them calls clear inode before doing everything
++ * else that's needed, and the other is fine.  This way we truncate the inode
++ * size (and its pages) and then clear our own inode, which will do an iput
++ * on our and the lower inode.
++ */
++STATIC void
++mini_fo_delete_inode(inode_t *inode)
++{
++      print_entry_location();
++
++      fist_checkinode(inode, "mini_fo_delete_inode IN");
++      inode->i_size = 0;              /* every f/s seems to do that */
++      clear_inode(inode);
++
++      print_exit_location();
++}
++#endif /* defined(FIST_DEBUG) || defined(FIST_FILTER_SCA) */
++
++
++/* final actions when unmounting a file system */
++STATIC void
++mini_fo_put_super(super_block_t *sb)
++{
++      if (stopd(sb)) {
++              mntput(stopd(sb)->hidden_mnt);
++              mntput(stopd(sb)->hidden_mnt2);
++
++              /* mk: no! dput(stopd(sb)->base_dir_dentry);
++                 dput(stopd(sb)->storage_dir_dentry); */
++
++              kfree(stopd(sb));
++              __stopd(sb) = NULL;
++      }
++}
++
++
++#ifdef NOT_NEEDED
++/*
++ * This is called in do_umount before put_super.
++ * The superblock lock is not held yet.
++ * We probably do not need to define this or call write_super
++ * on the hidden_sb, because sync_supers() will get to hidden_sb
++ * sooner or later.  But it is also called from file_fsync()...
++ */
++STATIC void
++mini_fo_write_super(super_block_t *sb)
++{
++      return;
++}
++#endif /* NOT_NEEDED */
++
++
++STATIC int
++#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,18)
++mini_fo_statfs(struct dentry *d, struct kstatfs *buf)
++#elif LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,0)
++mini_fo_statfs(super_block_t *sb, struct kstatfs *buf)
++#else
++mini_fo_statfs(super_block_t *sb, struct statfs *buf)
++#endif
++{
++      int err = 0;
++#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,18)
++      struct dentry *hidden_d;
++
++      hidden_d = dtohd(d);
++      err = vfs_statfs(hidden_d, buf);
++#else
++      super_block_t *hidden_sb;
++
++      hidden_sb = stohs(sb);
++      err = vfs_statfs(hidden_sb, buf);
++#endif
++
++      return err;
++}
++
++
++/*
++ * XXX: not implemented.  This is not allowed yet.
++ * Should we call this on the hidden_sb?  Probably not.
++ */
++STATIC int
++mini_fo_remount_fs(super_block_t *sb, int *flags, char *data)
++{
++      //printk(KERN_CRIT "mini_fo_remount_fs: WARNING, this function is umimplemented.\n");
++      return -ENOSYS;
++}
++
++
++/*
++ * Called by iput() when the inode reference count reached zero
++ * and the inode is not hashed anywhere.  Used to clear anything
++ * that needs to be, before the inode is completely destroyed and put
++ * on the inode free list.
++ */
++STATIC void
++mini_fo_clear_inode(inode_t *inode)
++{
++      /*
++       * Decrement a reference to a hidden_inode, which was incremented
++       * by our read_inode when it was created initially.
++       */
++
++      /* release the wol_list */
++      if(S_ISDIR(inode->i_mode)) {
++              __meta_put_lists(inode);
++      }
++
++      /* mk: fan out fun */
++      if(itohi(inode))
++              iput(itohi(inode));
++      if(itohi2(inode))
++              iput(itohi2(inode));
++
++      // XXX: why this assertion fails?
++      // because it doesn't like us
++      // ASSERT((inode->i_state & I_DIRTY) == 0);
++      kfree(itopd(inode));
++      __itopd(inode) = NULL;
++}
++
++
++/*
++ * Called in do_umount() if the MNT_FORCE flag was used and this
++ * function is defined.  See comment in linux/fs/super.c:do_umount().
++ * Used only in nfs, to kill any pending RPC tasks, so that subsequent
++ * code can actually succeed and won't leave tasks that need handling.
++ *
++ * PS. I wonder if this is somehow useful to undo damage that was
++ * left in the kernel after a user level file server (such as amd)
++ * dies.
++ */
++STATIC void
++#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,18)
++mini_fo_umount_begin(struct vfsmount *mnt, int flags)
++{
++      struct vfsmount *hidden_mnt;
++
++      hidden_mnt = stopd(mnt->mnt_sb)->hidden_mnt;
++
++      if (hidden_mnt->mnt_sb->s_op->umount_begin)
++              hidden_mnt->mnt_sb->s_op->umount_begin(hidden_mnt, flags);
++
++}
++#else
++mini_fo_umount_begin(super_block_t *sb)
++{
++      super_block_t *hidden_sb;
++
++      hidden_sb = stohs(sb);
++
++      if (hidden_sb->s_op->umount_begin)
++              hidden_sb->s_op->umount_begin(hidden_sb);
++
++}
++#endif
++
++
++struct super_operations mini_fo_sops =
++{
++      read_inode:             mini_fo_read_inode,
++#if defined(FIST_DEBUG) || defined(FIST_FILTER_SCA)
++      write_inode:    mini_fo_write_inode,
++#endif /* defined(FIST_DEBUG) || defined(FIST_FILTER_SCA) */
++      put_inode:              mini_fo_put_inode,
++#if defined(FIST_DEBUG) || defined(FIST_FILTER_SCA)
++      delete_inode:   mini_fo_delete_inode,
++#endif /* defined(FIST_DEBUG) || defined(FIST_FILTER_SCA) */
++      put_super:              mini_fo_put_super,
++      statfs:         mini_fo_statfs,
++      remount_fs:             mini_fo_remount_fs,
++      clear_inode:    mini_fo_clear_inode,
++      umount_begin:   mini_fo_umount_begin,
++};
+--- /dev/null
++++ b/fs/mini_fo/Kconfig
+@@ -0,0 +1,3 @@
++config MINI_FO
++      tristate "Mini fanout overlay filesystem"
++

diff --git a/target/linux/generic-2.6/patches-2.6.32/210-mini_fo_2.6.25_fixes.patch b/target/linux/generic-2.6/patches-2.6.32/210-mini_fo_2.6.25_fixes.patch
new file mode 100644 (file)
index 0000000..d71e3b6
--- /dev/null
+++ b/target/linux/generic-2.6/patches-2.6.32/210-mini_fo_2.6.25_fixes.patch
@@ -0,0 +1,143 @@
+--- a/fs/mini_fo/main.c
++++ b/fs/mini_fo/main.c
+@@ -79,6 +79,7 @@ mini_fo_tri_interpose(dentry_t *hidden_d
+        * of the new inode's fields
+        */
+ 
++#if LINUX_VERSION_CODE < KERNEL_VERSION(2,6,25)
+       /*
+        * original: inode = iget(sb, hidden_inode->i_ino);
+        */
+@@ -87,6 +88,13 @@ mini_fo_tri_interpose(dentry_t *hidden_d
+               err = -EACCES;          /* should be impossible??? */
+               goto out;
+       }
++#else
++      inode = mini_fo_iget(sb, iunique(sb, 25));
++      if (IS_ERR(inode)) {
++              err = PTR_ERR(inode);
++              goto out;
++      }
++#endif
+ 
+       /*
+        * interpose the inode if not already interposed
+@@ -184,9 +192,9 @@ mini_fo_parse_options(super_block_t *sb,
+                               hidden_root = ERR_PTR(err);
+                               goto out;
+                       }
+-                      hidden_root = nd.dentry;
+-                      stopd(sb)->base_dir_dentry = nd.dentry;
+-                      stopd(sb)->hidden_mnt = nd.mnt;
++                      hidden_root = nd_get_dentry(&nd);
++                      stopd(sb)->base_dir_dentry = nd_get_dentry(&nd);
++                      stopd(sb)->hidden_mnt = nd_get_mnt(&nd);
+ 
+               } else if(!strncmp("sto=", options, 4)) {
+                       /* parse the storage dir */
+@@ -204,9 +212,9 @@ mini_fo_parse_options(super_block_t *sb,
+                               hidden_root2 = ERR_PTR(err);
+                               goto out;
+                       }
+-                      hidden_root2 = nd2.dentry;
+-                      stopd(sb)->storage_dir_dentry = nd2.dentry;
+-                      stopd(sb)->hidden_mnt2 = nd2.mnt;
++                      hidden_root2 = nd_get_dentry(&nd2);
++                      stopd(sb)->storage_dir_dentry = nd_get_dentry(&nd2);
++                      stopd(sb)->hidden_mnt2 = nd_get_mnt(&nd2);
+                       stohs2(sb) = hidden_root2->d_sb;
+ 
+                       /* validate storage dir, this is done in
+--- a/fs/mini_fo/mini_fo.h
++++ b/fs/mini_fo/mini_fo.h
+@@ -302,6 +302,10 @@ extern int mini_fo_tri_interpose(dentry_
+ extern int mini_fo_cp_cont(dentry_t *tgt_dentry, struct vfsmount *tgt_mnt,
+                          dentry_t *src_dentry, struct vfsmount *src_mnt);
+ 
++#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,25)
++extern struct inode *mini_fo_iget(struct super_block *sb, unsigned long ino);
++#endif
++
+ #if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,0)
+ extern int mini_fo_create(inode_t *dir, dentry_t *dentry, int mode, struct nameidata *nd);
+ 
+@@ -501,6 +505,29 @@ static inline void double_unlock(struct 
+ #endif  /* if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,0) */
+ #endif /* __KERNEL__ */
+ 
++
++#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,25)
++static inline dentry_t *nd_get_dentry(struct nameidata *nd)
++{
++      return (nd->path.dentry);
++}
++
++static inline struct vfsmount *nd_get_mnt(struct nameidata *nd)
++{
++      return (nd->path.mnt);
++}
++#else
++static inline dentry_t *nd_get_dentry(struct nameidata *nd)
++{
++      return (nd->dentry);
++}
++
++static inline struct vfsmount *nd_get_mnt(struct nameidata *nd)
++{
++      return (nd->mnt);
++}
++#endif
++
+ /*
+  * Definitions for user and kernel code
+  */
+--- a/fs/mini_fo/super.c
++++ b/fs/mini_fo/super.c
+@@ -262,10 +262,31 @@ mini_fo_umount_begin(super_block_t *sb)
+ }
+ #endif
+ 
++#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,25)
++struct inode *
++mini_fo_iget(struct super_block *sb, unsigned long ino)
++{
++      struct inode *inode;
++
++      inode = iget_locked(sb, ino);
++      if (!inode)
++              return ERR_PTR(-ENOMEM);
++
++      if (!(inode->i_state & I_NEW))
++              return inode;
++
++      mini_fo_read_inode(inode);
++
++      unlock_new_inode(inode);
++      return inode;
++}
++#endif /* if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,25) */
+ 
+ struct super_operations mini_fo_sops =
+ {
++#if LINUX_VERSION_CODE < KERNEL_VERSION(2,6,25)
+       read_inode:             mini_fo_read_inode,
++#endif
+ #if defined(FIST_DEBUG) || defined(FIST_FILTER_SCA)
+       write_inode:    mini_fo_write_inode,
+ #endif /* defined(FIST_DEBUG) || defined(FIST_FILTER_SCA) */
+--- a/fs/mini_fo/aux.c
++++ b/fs/mini_fo/aux.c
+@@ -164,11 +164,11 @@ dentry_t *bpath_walk(super_block_t *sb, 
+       err = vfs_path_lookup(mnt->mnt_root, mnt, bpath+1, 0, &nd);
+ 
+       /* validate */
+-      if (err || !nd.dentry || !nd.dentry->d_inode) {
++      if (err || !nd_get_dentry(&nd) || !nd_get_dentry(&nd)->d_inode) {
+               printk(KERN_CRIT "mini_fo: bpath_walk: path_walk failed.\n");
+               return NULL;
+       }
+-      return nd.dentry;
++      return nd_get_dentry(&nd);
+ }
+ 
+ 

diff --git a/target/linux/generic-2.6/patches-2.6.32/211-mini_fo_2.6.25_dentry_open_war.patch b/target/linux/generic-2.6/patches-2.6.32/211-mini_fo_2.6.25_dentry_open_war.patch
new file mode 100644 (file)
index 0000000..48a1942
--- /dev/null
+++ b/target/linux/generic-2.6/patches-2.6.32/211-mini_fo_2.6.25_dentry_open_war.patch
@@ -0,0 +1,66 @@
+--- a/fs/mini_fo/meta.c
++++ b/fs/mini_fo/meta.c
+@@ -442,6 +442,11 @@ int meta_write_d_entry(dentry_t *dentry,
+                          S_IRUSR | S_IWUSR);
+ #endif
+       }
++
++      /* $%& err, is this correct? */
++      meta_mnt = stopd(dentry->d_inode->i_sb)->hidden_mnt2;
++      mntget(meta_mnt);
++
+         /* open META-file for writing */
+         meta_file = dentry_open(meta_dentry, meta_mnt, 0x1);
+         if(!meta_file || IS_ERR(meta_file)) {
+@@ -535,6 +540,11 @@ int meta_write_r_entry(dentry_t *dentry,
+                          meta_dentry, S_IRUSR | S_IWUSR);
+ #endif
+       }
++
++      /* $%& err, is this correct? */
++      meta_mnt = stopd(dentry->d_inode->i_sb)->hidden_mnt2;
++      mntget(meta_mnt);
++
+         /* open META-file for writing */
+         meta_file = dentry_open(meta_dentry, meta_mnt, 0x1);
+         if(!meta_file || IS_ERR(meta_file)) {
+@@ -671,14 +681,16 @@ int meta_sync_d_list(dentry_t *dentry, i
+               }
+       }
+ 
++      /* $%& err, is this correct? */
++      meta_mnt = stopd(dentry->d_inode->i_sb)->hidden_mnt2;
++      mntget(meta_mnt);
++
+         /* open META-file for writing */
+         meta_file = dentry_open(meta_dentry, meta_mnt, 0x1);
+         if(!meta_file || IS_ERR(meta_file)) {
+                 printk(KERN_CRIT "mini_fo: meta_sync_d_list: \
+                                   ERROR opening meta file.\n");
+-              /* we don't mntget so we dont't mntput (for now)
+-               * mntput(meta_mnt);
+-               */
++              mntput(meta_mnt);
+               dput(meta_dentry);
+               err = -1;
+                 goto out;
+@@ -811,14 +823,16 @@ int meta_sync_r_list(dentry_t *dentry, i
+               }
+       }
+ 
++      /* $%& err, is this correct? */
++      meta_mnt = stopd(dentry->d_inode->i_sb)->hidden_mnt2;
++      mntget(meta_mnt);
++
+         /* open META-file for writing */
+         meta_file = dentry_open(meta_dentry, meta_mnt, 0x1);
+         if(!meta_file || IS_ERR(meta_file)) {
+                 printk(KERN_CRIT "mini_fo: meta_sync_r_list: \
+                                   ERROR opening meta file.\n");
+-              /* we don't mntget so we dont't mntput (for now)
+-               * mntput(meta_mnt);
+-               */
++              mntput(meta_mnt);
+               dput(meta_dentry);
+               err = -1;
+                 goto out;

diff --git a/target/linux/generic-2.6/patches-2.6.32/212-mini_fo_2.6.26_fixes.patch b/target/linux/generic-2.6/patches-2.6.32/212-mini_fo_2.6.26_fixes.patch
new file mode 100644 (file)
index 0000000..8bd9ba3
--- /dev/null
+++ b/target/linux/generic-2.6/patches-2.6.32/212-mini_fo_2.6.26_fixes.patch
@@ -0,0 +1,37 @@
+--- a/fs/mini_fo/super.c
++++ b/fs/mini_fo/super.c
+@@ -84,6 +84,7 @@ mini_fo_write_inode(inode_t *inode, int 
+ #endif /* defined(FIST_DEBUG) || defined(FIST_FILTER_SCA) */
+ 
+ 
++#if LINUX_VERSION_CODE < KERNEL_VERSION(2,6,26)
+ STATIC void
+ mini_fo_put_inode(inode_t *inode)
+ {
+@@ -99,6 +100,7 @@ mini_fo_put_inode(inode_t *inode)
+       if (atomic_read(&inode->i_count) == 1)
+               inode->i_nlink = 0;
+ }
++#endif /* LINUX_VERSION_CODE < KERNEL_VERSION(2,6,26) */
+ 
+ 
+ #if defined(FIST_DEBUG) || defined(FIST_FILTER_SCA)
+@@ -238,7 +240,7 @@ mini_fo_clear_inode(inode_t *inode)
+  * dies.
+  */
+ STATIC void
+-#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,18)
++#if (LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,18)) && (LINUX_VERSION_CODE < KERNEL_VERSION(2,6,26))
+ mini_fo_umount_begin(struct vfsmount *mnt, int flags)
+ {
+       struct vfsmount *hidden_mnt;
+@@ -290,7 +292,9 @@ struct super_operations mini_fo_sops =
+ #if defined(FIST_DEBUG) || defined(FIST_FILTER_SCA)
+       write_inode:    mini_fo_write_inode,
+ #endif /* defined(FIST_DEBUG) || defined(FIST_FILTER_SCA) */
++#if LINUX_VERSION_CODE < KERNEL_VERSION(2,6,26)
+       put_inode:              mini_fo_put_inode,
++#endif /* LINUX_VERSION_CODE < KERNEL_VERSION(2,6,26) */
+ #if defined(FIST_DEBUG) || defined(FIST_FILTER_SCA)
+       delete_inode:   mini_fo_delete_inode,
+ #endif /* defined(FIST_DEBUG) || defined(FIST_FILTER_SCA) */

diff --git a/target/linux/generic-2.6/patches-2.6.32/213-mini_fo_2.6.27_fixes.patch b/target/linux/generic-2.6/patches-2.6.32/213-mini_fo_2.6.27_fixes.patch
new file mode 100644 (file)
index 0000000..f92c18b
--- /dev/null
+++ b/target/linux/generic-2.6/patches-2.6.32/213-mini_fo_2.6.27_fixes.patch
@@ -0,0 +1,41 @@
+--- a/fs/mini_fo/inode.c
++++ b/fs/mini_fo/inode.c
+@@ -439,7 +439,7 @@ mini_fo_symlink(inode_t *dir, dentry_t *
+       int err=0;
+       dentry_t *hidden_sto_dentry;
+       dentry_t *hidden_sto_dir_dentry;
+-#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,0)
++#if (LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,0)) && (LINUX_VERSION_CODE < KERNEL_VERSION(2,6,27))
+         umode_t mode;
+ #endif
+ 
+@@ -466,7 +466,7 @@ mini_fo_symlink(inode_t *dir, dentry_t *
+       down(&hidden_sto_dir_dentry->d_inode->i_sem);
+ #endif
+ 
+-#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,0)
++#if (LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,0)) && (LINUX_VERSION_CODE < KERNEL_VERSION(2,6,27))
+       mode = S_IALLUGO;
+       err = vfs_symlink(hidden_sto_dir_dentry->d_inode,
+                         hidden_sto_dentry, symname, mode);
+@@ -1128,7 +1128,7 @@ void mini_fo_put_link(struct dentry *den
+ #endif
+ 
+ STATIC int
+-#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,0)
++#if (LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,0)) && (LINUX_VERSION_CODE < KERNEL_VERSION(2,6,27))
+ mini_fo_permission(inode_t *inode, int mask, struct nameidata *nd)
+ #else
+ mini_fo_permission(inode_t *inode, int mask)
+@@ -1150,8 +1150,9 @@ mini_fo_permission(inode_t *inode, int m
+        *      if (err)
+        *              goto out;
+        */
+-
+-#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,0)
++#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,27)
++      err = inode_permission(hidden_inode, mask);
++#elif LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,0)
+       err = permission(hidden_inode, mask, nd);
+ #else
+       err = permission(hidden_inode, mask);

diff --git a/target/linux/generic-2.6/patches-2.6.32/214-mini_fo_2.6.29.patch b/target/linux/generic-2.6/patches-2.6.32/214-mini_fo_2.6.29.patch
new file mode 100644 (file)
index 0000000..63d704b
--- /dev/null
+++ b/target/linux/generic-2.6/patches-2.6.32/214-mini_fo_2.6.29.patch
@@ -0,0 +1,96 @@
+--- a/fs/mini_fo/aux.c
++++ b/fs/mini_fo/aux.c
+@@ -236,7 +236,7 @@ int mini_fo_cp_cont(dentry_t *tgt_dentry
+       mntget(src_mnt);
+ 
+       /* open file write only */
+-      tgt_file = dentry_open(tgt_dentry, tgt_mnt, 0x1);
++      tgt_file = dentry_open(tgt_dentry, tgt_mnt, 0x1, current_cred());
+       if(!tgt_file || IS_ERR(tgt_file)) {
+               printk(KERN_CRIT "mini_fo_cp_cont: ERROR opening target file.\n");
+               err = PTR_ERR(tgt_file);
+@@ -244,7 +244,7 @@ int mini_fo_cp_cont(dentry_t *tgt_dentry
+       }
+ 
+       /* open file read only */
+-      src_file = dentry_open(src_dentry, src_mnt, 0x0);
++      src_file = dentry_open(src_dentry, src_mnt, 0x0, current_cred());
+       if(!src_file || IS_ERR(src_file)) {
+               printk(KERN_CRIT "mini_fo_cp_cont: ERROR opening source file.\n");
+               err = PTR_ERR(src_file);
+--- a/fs/mini_fo/file.c
++++ b/fs/mini_fo/file.c
+@@ -437,7 +437,7 @@ mini_fo_open(inode_t *inode, file_t *fil
+                       mntget(stopd(inode->i_sb)->hidden_mnt);
+                       hidden_file = dentry_open(hidden_dentry,
+                                                 stopd(inode->i_sb)->hidden_mnt,
+-                                                hidden_flags);
++                                                hidden_flags, file->f_cred);
+                       if (IS_ERR(hidden_file)) {
+                               err = PTR_ERR(hidden_file);
+                               dput(hidden_dentry);
+@@ -479,7 +479,7 @@ mini_fo_open(inode_t *inode, file_t *fil
+                       mntget(stopd(inode->i_sb)->hidden_mnt);
+                       hidden_file = dentry_open(hidden_dentry,
+                                                 stopd(inode->i_sb)->hidden_mnt,
+-                                                hidden_flags);
++                                                hidden_flags, file->f_cred);
+                       if (IS_ERR(hidden_file)) {
+                               err = PTR_ERR(hidden_file);
+                               dput(hidden_dentry);
+@@ -512,7 +512,7 @@ mini_fo_open(inode_t *inode, file_t *fil
+       mntget(stopd(inode->i_sb)->hidden_mnt2);
+       hidden_sto_file = dentry_open(hidden_sto_dentry,
+                                     stopd(inode->i_sb)->hidden_mnt2,
+-                                    hidden_flags);
++                                    hidden_flags, file->f_cred);
+ 
+       /* dentry_open dputs the dentry if it fails */
+       if (IS_ERR(hidden_sto_file)) {
+--- a/fs/mini_fo/meta.c
++++ b/fs/mini_fo/meta.c
+@@ -56,7 +56,7 @@ int meta_build_lists(dentry_t *dentry)
+ 
+ 
+               /* open META-file for reading */
+-              meta_file = dentry_open(meta_dentry, meta_mnt, 0x0);
++              meta_file = dentry_open(meta_dentry, meta_mnt, 0x0, current_cred());
+               if(!meta_file || IS_ERR(meta_file)) {
+                       printk(KERN_CRIT "mini_fo: meta_build_lists: \
+                                           ERROR opening META file.\n");
+@@ -448,7 +448,7 @@ int meta_write_d_entry(dentry_t *dentry,
+       mntget(meta_mnt);
+ 
+         /* open META-file for writing */
+-        meta_file = dentry_open(meta_dentry, meta_mnt, 0x1);
++        meta_file = dentry_open(meta_dentry, meta_mnt, 0x1, current_cred());
+         if(!meta_file || IS_ERR(meta_file)) {
+                 printk(KERN_CRIT "mini_fo: meta_write_d_entry: \
+                                   ERROR opening meta file.\n");
+@@ -546,7 +546,7 @@ int meta_write_r_entry(dentry_t *dentry,
+       mntget(meta_mnt);
+ 
+         /* open META-file for writing */
+-        meta_file = dentry_open(meta_dentry, meta_mnt, 0x1);
++        meta_file = dentry_open(meta_dentry, meta_mnt, 0x1, current_cred());
+         if(!meta_file || IS_ERR(meta_file)) {
+                 printk(KERN_CRIT "mini_fo: meta_write_r_entry: \
+                                   ERROR opening meta file.\n");
+@@ -686,7 +686,7 @@ int meta_sync_d_list(dentry_t *dentry, i
+       mntget(meta_mnt);
+ 
+         /* open META-file for writing */
+-        meta_file = dentry_open(meta_dentry, meta_mnt, 0x1);
++        meta_file = dentry_open(meta_dentry, meta_mnt, 0x1, current_cred());
+         if(!meta_file || IS_ERR(meta_file)) {
+                 printk(KERN_CRIT "mini_fo: meta_sync_d_list: \
+                                   ERROR opening meta file.\n");
+@@ -828,7 +828,7 @@ int meta_sync_r_list(dentry_t *dentry, i
+       mntget(meta_mnt);
+ 
+         /* open META-file for writing */
+-        meta_file = dentry_open(meta_dentry, meta_mnt, 0x1);
++        meta_file = dentry_open(meta_dentry, meta_mnt, 0x1, current_cred());
+         if(!meta_file || IS_ERR(meta_file)) {
+                 printk(KERN_CRIT "mini_fo: meta_sync_r_list: \
+                                   ERROR opening meta file.\n");

diff --git a/target/linux/generic-2.6/patches-2.6.32/215-mini_fo_2.6.30.patch b/target/linux/generic-2.6/patches-2.6.32/215-mini_fo_2.6.30.patch
new file mode 100644 (file)
index 0000000..2d20920
--- /dev/null
+++ b/target/linux/generic-2.6/patches-2.6.32/215-mini_fo_2.6.30.patch
@@ -0,0 +1,157 @@
+--- a/fs/mini_fo/aux.c
++++ b/fs/mini_fo/aux.c
+@@ -86,8 +86,10 @@ int get_neg_sto_dentry(dentry_t *dentry)
+       len = dentry->d_name.len;
+       name = dentry->d_name.name;
+ 
++      mutex_lock(&dtohd2(dentry->d_parent)->d_inode->i_mutex);
+       dtohd2(dentry) =
+               lookup_one_len(name, dtohd2(dentry->d_parent), len);
++      mutex_unlock(&dtohd2(dentry->d_parent)->d_inode->i_mutex);
+ 
+  out:
+       return err;
+@@ -426,7 +428,9 @@ int build_sto_structure(dentry_t *dir, d
+               const unsigned char *name;
+               len = dtohd(dentry)->d_name.len;
+               name = dtohd(dentry)->d_name.name;
++              mutex_lock(&dtohd2(dir)->d_inode->i_mutex);
+               hidden_sto_dentry = lookup_one_len(name, dtohd2(dir), len);
++              mutex_unlock(&dtohd2(dir)->d_inode->i_mutex);
+               dtohd2(dentry) = hidden_sto_dentry;
+       }
+ 
+--- a/fs/mini_fo/inode.c
++++ b/fs/mini_fo/inode.c
+@@ -113,17 +113,23 @@ mini_fo_lookup(inode_t *dir, dentry_t *d
+               hidden_dir_dentry = hidden_dentry->d_parent;
+               kfree(bpath);
+       }
+-      else if(hidden_dir_dentry && hidden_dir_dentry->d_inode)
++      else if(hidden_dir_dentry && hidden_dir_dentry->d_inode) {
++              mutex_lock(&hidden_dir_dentry->d_inode->i_mutex);
+               hidden_dentry =
+                       lookup_one_len(name, hidden_dir_dentry, namelen);
+-      else
++              mutex_unlock(&hidden_dir_dentry->d_inode->i_mutex);
++      } else {
+               hidden_dentry = NULL;
++      }
+ 
+-      if(hidden_sto_dir_dentry && hidden_sto_dir_dentry->d_inode)
++      if(hidden_sto_dir_dentry && hidden_sto_dir_dentry->d_inode) {
++              mutex_lock(&hidden_sto_dir_dentry->d_inode->i_mutex);
+               hidden_sto_dentry =
+                       lookup_one_len(name, hidden_sto_dir_dentry, namelen);
+-      else
++              mutex_unlock(&hidden_sto_dir_dentry->d_inode->i_mutex);
++      } else {
+               hidden_sto_dentry =  NULL;
++      }
+ 
+       /* catch error in lookup */
+       if (IS_ERR(hidden_dentry) || IS_ERR(hidden_sto_dentry)) {
+@@ -553,9 +559,11 @@ mini_fo_rmdir(inode_t *dir, dentry_t *de
+ #endif
+ 
+               /* Delete an old WOL file contained in the storage dir */
++              mutex_lock(&hidden_sto_dentry->d_inode->i_mutex);
+               meta_dentry = lookup_one_len(META_FILENAME,
+                                            hidden_sto_dentry,
+                                            strlen(META_FILENAME));
++              mutex_unlock(&hidden_sto_dentry->d_inode->i_mutex);
+               if(meta_dentry->d_inode) {
+                       err = vfs_unlink(hidden_sto_dentry->d_inode, meta_dentry);
+                       dput(meta_dentry);
+@@ -643,9 +651,11 @@ mini_fo_rmdir(inode_t *dir, dentry_t *de
+ #endif
+ 
+               /* Delete an old WOL file contained in the storage dir */
++              mutex_lock(&hidden_sto_dentry->d_inode->i_mutex);
+               meta_dentry = lookup_one_len(META_FILENAME,
+                                            hidden_sto_dentry,
+                                            strlen(META_FILENAME));
++              mutex_unlock(&hidden_sto_dentry->d_inode->i_mutex);
+               if(meta_dentry->d_inode) {
+                       /* is this necessary? dget(meta_dentry); */
+                       err = vfs_unlink(hidden_sto_dentry->d_inode,
+@@ -688,9 +698,11 @@ mini_fo_rmdir(inode_t *dir, dentry_t *de
+ #endif
+ 
+               /* Delete an old WOL file contained in the storage dir */
++              mutex_lock(&hidden_sto_dentry->d_inode->i_mutex);
+               meta_dentry = lookup_one_len(META_FILENAME,
+                                            hidden_sto_dentry,
+                                            strlen(META_FILENAME));
++              mutex_unlock(&hidden_sto_dentry->d_inode->i_mutex);
+               if(meta_dentry->d_inode) {
+                       /* is this necessary? dget(meta_dentry); */
+                       err = vfs_unlink(hidden_sto_dentry->d_inode,
+--- a/fs/mini_fo/meta.c
++++ b/fs/mini_fo/meta.c
+@@ -43,9 +43,11 @@ int meta_build_lists(dentry_t *dentry)
+ 
+       /* might there be a META-file? */
+       if(dtohd2(dentry) && dtohd2(dentry)->d_inode) {
++              mutex_lock(&dtohd2(dentry)->d_inode->i_mutex);
+               meta_dentry = lookup_one_len(META_FILENAME,
+                                            dtohd2(dentry),
+                                            strlen(META_FILENAME));
++              mutex_unlock(&dtohd2(dentry)->d_inode->i_mutex);
+               if(!meta_dentry->d_inode) {
+                       dput(meta_dentry);
+                       goto out_ok;
+@@ -426,8 +428,11 @@ int meta_write_d_entry(dentry_t *dentry,
+                       goto out;
+                 }
+         }
++
++      mutex_lock(&dtohd2(dentry)->d_inode->i_mutex);
+       meta_dentry = lookup_one_len(META_FILENAME,
+                                    dtohd2(dentry), strlen (META_FILENAME));
++      mutex_unlock(&dtohd2(dentry)->d_inode->i_mutex);
+ 
+       /* We need to create a META-file */
+         if(!meta_dentry->d_inode) {
+@@ -527,9 +532,13 @@ int meta_write_r_entry(dentry_t *dentry,
+                       goto out;
+                 }
+         }
++
++      mutex_lock(&dtohd2(dentry)->d_inode->i_mutex);
+       meta_dentry = lookup_one_len(META_FILENAME,
+                                    dtohd2(dentry),
+                                    strlen (META_FILENAME));
++      mutex_unlock(&dtohd2(dentry)->d_inode->i_mutex);
++
+         if(!meta_dentry->d_inode) {
+                 /* We need to create a META-file */
+ #if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,0)
+@@ -641,9 +650,13 @@ int meta_sync_d_list(dentry_t *dentry, i
+                       goto out;
+                 }
+         }
++
++      mutex_lock(&dtohd2(dentry)->d_inode->i_mutex);
+       meta_dentry = lookup_one_len(META_FILENAME,
+                                    dtohd2(dentry),
+                                    strlen(META_FILENAME));
++      mutex_unlock(&dtohd2(dentry)->d_inode->i_mutex);
++
+         if(!meta_dentry->d_inode) {
+                 /* We need to create a META-file */
+ #if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,0)
+@@ -784,9 +797,13 @@ int meta_sync_r_list(dentry_t *dentry, i
+                       goto out;
+                 }
+         }
++
++      mutex_lock(&dtohd2(dentry)->d_inode->i_mutex);
+       meta_dentry = lookup_one_len(META_FILENAME,
+                                    dtohd2(dentry),
+                                    strlen(META_FILENAME));
++      mutex_unlock(&dtohd2(dentry)->d_inode->i_mutex);
++
+         if(!meta_dentry->d_inode) {
+                 /* We need to create a META-file */
+ #if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,0)

diff --git a/target/linux/generic-2.6/patches-2.6.32/219-kobject_uevent.patch b/target/linux/generic-2.6/patches-2.6.32/219-kobject_uevent.patch
new file mode 100644 (file)
index 0000000..7e00b22
--- /dev/null
+++ b/target/linux/generic-2.6/patches-2.6.32/219-kobject_uevent.patch
@@ -0,0 +1,42 @@
+--- a/lib/kobject_uevent.c
++++ b/lib/kobject_uevent.c
+@@ -29,7 +29,8 @@ u64 uevent_seqnum;
+ char uevent_helper[UEVENT_HELPER_PATH_LEN] = CONFIG_UEVENT_HELPER_PATH;
+ static DEFINE_SPINLOCK(sequence_lock);
+ #if defined(CONFIG_NET)
+-static struct sock *uevent_sock;
++struct sock *uevent_sock = NULL;
++EXPORT_SYMBOL_GPL(uevent_sock);
+ #endif
+ 
+ /* the strings here must match the enum in include/linux/kobject.h */
+@@ -42,6 +43,18 @@ 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
+  *
+@@ -201,9 +214,7 @@ 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-2.6/patches-2.6.32/220-sound_kconfig.patch b/target/linux/generic-2.6/patches-2.6.32/220-sound_kconfig.patch
new file mode 100644 (file)
index 0000000..f374009
--- /dev/null
+++ b/target/linux/generic-2.6/patches-2.6.32/220-sound_kconfig.patch
@@ -0,0 +1,11 @@
+--- a/sound/core/Kconfig
++++ b/sound/core/Kconfig
+@@ -7,7 +7,7 @@ config SND_PCM
+       select SND_TIMER
+ 
+ config SND_HWDEP
+-      tristate
++      tristate "Sound hardware support"
+ 
+ config SND_RAWMIDI
+       tristate

diff --git a/target/linux/generic-2.6/patches-2.6.32/221-binfmt_elf_gcc4.1.patch b/target/linux/generic-2.6/patches-2.6.32/221-binfmt_elf_gcc4.1.patch
new file mode 100644 (file)
index 0000000..fa891e0
--- /dev/null
+++ b/target/linux/generic-2.6/patches-2.6.32/221-binfmt_elf_gcc4.1.patch
@@ -0,0 +1,11 @@
+--- a/fs/binfmt_elf.c
++++ b/fs/binfmt_elf.c
+@@ -1193,7 +1193,7 @@ static unsigned long vma_dump_size(struc
+       if (FILTER(ELF_HEADERS) &&
+           vma->vm_pgoff == 0 && (vma->vm_flags & VM_READ)) {
+               u32 __user *header = (u32 __user *) vma->vm_start;
+-              u32 word;
++              u32 word = 0;
+               mm_segment_t fs = get_fs();
+               /*
+                * Doing it this way gets the constant folded by GCC.

diff --git a/target/linux/generic-2.6/patches-2.6.32/222-partial_eraseblock_write.patch b/target/linux/generic-2.6/patches-2.6.32/222-partial_eraseblock_write.patch
new file mode 100644 (file)
index 0000000..0c7672e
--- /dev/null
+++ b/target/linux/generic-2.6/patches-2.6.32/222-partial_eraseblock_write.patch
@@ -0,0 +1,146 @@
+--- a/drivers/mtd/mtdpart.c
++++ b/drivers/mtd/mtdpart.c
+@@ -21,6 +21,8 @@
+ #include <linux/root_dev.h>
+ #include <linux/magic.h>
+ 
++#define MTD_ERASE_PARTIAL     0x8000 /* partition only covers parts of an erase block */
++
+ /* Our partition linked list */
+ static LIST_HEAD(mtd_partitions);
+ 
+@@ -226,13 +228,60 @@ 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;
+ }
+ 
+@@ -240,7 +289,25 @@ 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;
+@@ -473,18 +540,24 @@ static struct mtd_part *add_one_partitio
+       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
+@@ -46,6 +46,10 @@ 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-2.6/patches-2.6.32/230-union_mounts.patch b/target/linux/generic-2.6/patches-2.6.32/230-union_mounts.patch
new file mode 100644 (file)
index 0000000..23236a0
--- /dev/null
+++ b/target/linux/generic-2.6/patches-2.6.32/230-union_mounts.patch
@@ -0,0 +1,5203 @@
+--- /dev/null
++++ b/Documentation/filesystems/union-mounts.txt
+@@ -0,0 +1,187 @@
++VFS based Union Mounts
++----------------------
++
++ 1. What are "Union Mounts"
++ 2. The Union Stack
++ 3. Whiteouts, Opaque Directories, and Fallthrus
++ 4. Copy-up
++ 5. Directory Reading
++ 6. Known Problems
++ 7. References
++
++-------------------------------------------------------------------------------
++
++1. What are "Union Mounts"
++==========================
++
++Please note: this is NOT about UnionFS and it is NOT derived work!
++
++Traditionally the mount operation is opaque, which means that the content of
++the mount point, the directory where the file system is mounted on, is hidden
++by the content of the mounted file system's root directory until the file
++system is unmounted again. Unlike the traditional UNIX mount mechanism, that
++hides the contents of the mount point, a union mount presents a view as if
++both filesystems are merged together. Although only the topmost layer of the
++mount stack can be altered, it appears as if transparent file system mounts
++allow any file to be created, modified or deleted.
++
++Most people know the concepts and features of union mounts from other
++operating systems like Sun's Translucent Filesystem, Plan9 or BSD. For an
++in-depth review of union mounts and other unioning file systems, see:
++
++http://lwn.net/Articles/324291/
++http://lwn.net/Articles/325369/
++http://lwn.net/Articles/327738/
++
++Here are the key features of this implementation:
++- completely VFS based
++- does not change the namespace stacking
++- directory listings have duplicate entries removed in the kernel
++- writable unions: only the topmost file system layer may be writable
++- writable unions: new whiteout filetype handled inside the kernel
++
++-------------------------------------------------------------------------------
++
++2. The Union Stack
++==================
++
++The mounted file systems are organized in the "file system hierarchy" (tree of
++vfsmount structures), which keeps track about the stacking of file systems
++upon each other. The per-directory view on the file system hierarchy is called
++"mount stack" and reflects the order of file systems, which are mounted on a
++specific directory.
++
++Union mounts present a single unified view of the contents of two or more file
++systems as if they are merged together. Since the information which file
++system objects are part of a unified view is not directly available from the
++file system hierarchy there is a need for a new structure. The file system
++objects, which are part of a unified view are ordered in a so-called "union
++stack". Only directories can be part of a unified view.
++
++The link between two layers of the union stack is maintained using the
++union_mount structure (#include <linux/union.h>):
++
++struct union_mount {
++       atomic_t u_count;               /* reference count */
++       struct mutex u_mutex;
++       struct list_head u_unions;      /* list head for d_unions */
++       struct hlist_node u_hash;       /* list head for searching */
++       struct hlist_node u_rhash;      /* list head for reverse searching */
++
++       struct path u_this;             /* this is me */
++       struct path u_next;             /* this is what I overlay */
++};
++
++The union_mount structure holds a reference (dget,mntget) to the next lower
++layer of the union stack. Since a dentry can be part of multiple unions
++(e.g. with bind mounts) they are tied together via the d_unions field of the
++dentry structure.
++
++All union_mount structures are cached in two hash tables, one for lookups of
++the next lower layer of the union stack and one for reverse lookups of the
++next upper layer of the union stack. The reverse lookup is necessary to
++resolve CWD relative path lookups. For calculation of the hash value, the
++(dentry,vfsmount) pair is used. The u_this field is used for the hash table
++which is used in forward lookups and the u_next field for the reverse lookups.
++
++During every new mount (or mount propagation), a new union_mount structure is
++allocated. A reference to the mountpoint's vfsmount and dentry is taken and
++stored in the u_next field.  In almost the same manner an union_mount
++structure is created during the first time lookup of a directory within a
++union mount point. In this case the lookup proceeds to all lower layers of the
++union. Therefore the complete union stack is constructed during lookups.
++
++The union_mount structures of a dentry are destroyed when the dentry itself is
++destroyed. Therefore the dentry cache is indirectly driving the union_mount
++cache like this is done for inodes too. Please note that lower layer
++union_mount structures are kept in memory until the topmost dentry is
++destroyed.
++
++-------------------------------------------------------------------------------
++
++3. Whiteouts, Opaque Directories, and Fallthrus
++===========================================================
++
++The whiteout filetype isn't new. It has been there for quite some time now
++but Linux's VFS hasn't used it yet. With the availability of union mount code
++inside the VFS the whiteout filetype is getting important to support writable
++union mounts. For read-only union mounts, support for whiteouts or
++copy-on-open is not necessary.
++
++The whiteout filetype has the same function as negative dentries: they
++describe a filename which isn't there. The creation of whiteouts needs
++lowlevel filesystem support. At the time of writing this, there is whiteout
++support for tmpfs, ext2 and ext3 available. The VFS is extended to make the
++whiteout handling transparent to all its users. The whiteouts are not
++visible to user-space.
++
++What happens when we create a directory that was previously whited-out? We
++don't want the directory entries from underlying filesystems to suddenly appear
++in the newly created directory.  So we mark the directory opaque (the file
++system must support storage of the opaque flag).
++
++Fallthrus are directory entries that override the opaque flag on a directory
++for that specific directory entry name (the lookup "falls through" to the next
++layer of the union mount).  Fallthrus are mainly useful for implementing
++readdir().
++
++-------------------------------------------------------------------------------
++
++4. Copy-up
++===========
++
++Any write to an object on any layer other than the topmost triggers a copy-up
++of the object to the topmost file system. For regular files, the copy-up
++happens when it is opened in writable mode.
++
++Directories are copied up on open, regardless of intent to write, to simplify
++copy-up of any object located below it in the namespace. Otherwise we have to
++walk the entire pathname to create intermediate directories whenever we do a
++copy-up. This is the same approach as BSD union mounts and uses a negigible
++amount of disk space.  Note that the actual directory entries themselves are
++not copied-up from the lower levels until (a) the directory is written to, or
++(b) the first readdir() of the directory (more on that later).
++
++Rename across different levels of the union is implemented as a copy-up
++operation for regular files. Rename of directories simply returns EXDEV, the
++same as if we tried to rename across different mounts. Most applications have
++to handle this case anyway. Some applications do not expect EXDEV on
++rename operations within the same directory, but these applications will also
++be broken with bind mounts.
++
++-------------------------------------------------------------------------------
++
++5. Directory Reading
++====================
++
++readdir() is somewhat difficult to implement in a unioning file system. We must
++eliminate duplicates, apply whiteouts, and start up readdir() where we left
++off, given a single f_pos value. Our solution is to copy up all the directory
++entries to the topmost directory the first time readdir() is called on a
++directory. During this copy-up, we skip duplicates and entries covered by
++whiteouts, and then create fallthru entries for each remaining visible dentry.
++Then we mark the whole directory opaque. From then on, we just use the topmost
++file system's normal readdir() operation.
++
++-------------------------------------------------------------------------------
++
++6. Known Problems
++=================
++
++- copyup() for other filetypes that reg and dir (e.g. for chown() on devices)
++- symlinks are untested
++
++-------------------------------------------------------------------------------
++
++7. References
++=============
++
++[1] http://marc.info/?l=linux-fsdevel&m=96035682927821&w=2
++[2] http://marc.info/?l=linux-fsdevel&m=117681527820133&w=2
++[3] http://marc.info/?l=linux-fsdevel&m=117913503200362&w=2
++[4] http://marc.info/?l=linux-fsdevel&m=118231827024394&w=2
++
++Authors:
++Jan Blunck <jblunck@suse.de>
++Bharata B Rao <bharata@linux.vnet.ibm.com>
++Valerie Aurora <vaurora@redhat.com>
+--- a/fs/autofs4/autofs_i.h
++++ b/fs/autofs4/autofs_i.h
+@@ -130,6 +130,7 @@ struct autofs_sb_info {
+       int reghost_enabled;
+       int needs_reghost;
+       struct super_block *sb;
++      struct vfsmount *mnt;
+       struct mutex wq_mutex;
+       spinlock_t fs_lock;
+       struct autofs_wait_queue *queues; /* Wait queue pointer */
+--- a/fs/autofs4/init.c
++++ b/fs/autofs4/init.c
+@@ -17,7 +17,16 @@
+ static int autofs_get_sb(struct file_system_type *fs_type,
+       int flags, const char *dev_name, void *data, struct vfsmount *mnt)
+ {
+-      return get_sb_nodev(fs_type, flags, data, autofs4_fill_super, mnt);
++      struct autofs_sb_info *sbi;
++      int ret;
++
++      ret = get_sb_nodev(fs_type, flags, data, autofs4_fill_super, mnt);
++      if (ret)
++              return ret;
++
++      sbi = autofs4_sbi(mnt->mnt_sb);
++      sbi->mnt = mnt;
++      return 0;
+ }
+ 
+ static struct file_system_type autofs_fs_type = {
+--- a/fs/autofs4/root.c
++++ b/fs/autofs4/root.c
+@@ -179,6 +179,12 @@ static void *autofs4_follow_link(struct 
+       DPRINTK("dentry=%p %.*s oz_mode=%d nd->flags=%d",
+               dentry, dentry->d_name.len, dentry->d_name.name, oz_mode,
+               nd->flags);
++
++      dput(nd->path.dentry);
++      mntput(nd->path.mnt);
++      nd->path.mnt = mntget(sbi->mnt);
++      nd->path.dentry = dget(dentry);
++
+       /*
+        * For an expire of a covered direct or offset mount we need
+        * to break out of follow_down() at the autofs mount trigger
+--- a/fs/compat.c
++++ b/fs/compat.c
+@@ -840,6 +840,9 @@ static int compat_fillonedir(void *__buf
+       struct compat_old_linux_dirent __user *dirent;
+       compat_ulong_t d_ino;
+ 
++      if (d_type == DT_WHT)
++              return 0;
++
+       if (buf->result)
+               return -EINVAL;
+       d_ino = ino;
+@@ -911,6 +914,9 @@ static int compat_filldir(void *__buf, c
+       compat_ulong_t d_ino;
+       int reclen = ALIGN(NAME_OFFSET(dirent) + namlen + 2, sizeof(compat_long_t));
+ 
++      if (d_type == DT_WHT)
++              return 0;
++
+       buf->error = -EINVAL;   /* only used if we fail.. */
+       if (reclen > buf->count)
+               return -EINVAL;
+@@ -1000,6 +1006,9 @@ static int compat_filldir64(void * __buf
+       int reclen = ALIGN(jj + namlen + 1, sizeof(u64));
+       u64 off;
+ 
++      if (d_type == DT_WHT)
++              return 0;
++
+       buf->error = -EINVAL;   /* only used if we fail.. */
+       if (reclen > buf->count)
+               return -EINVAL;
+--- a/fs/dcache.c
++++ b/fs/dcache.c
+@@ -18,6 +18,7 @@
+ #include <linux/string.h>
+ #include <linux/mm.h>
+ #include <linux/fs.h>
++#include <linux/union.h>
+ #include <linux/fsnotify.h>
+ #include <linux/slab.h>
+ #include <linux/init.h>
+@@ -158,14 +159,19 @@ static void dentry_lru_del_init(struct d
+ }
+ 
+ /**
+- * d_kill - kill dentry and return parent
++ * __d_kill - kill dentry and return parent
+  * @dentry: dentry to kill
++ * @list: kill list
++ * @greedy: return parent instead of putting it on the kill list
+  *
+  * The dentry must already be unhashed and removed from the LRU.
+  *
+- * If this is the root of the dentry tree, return NULL.
++ * If this is the root of the dentry tree, return NULL. If greedy is zero, we
++ * put the parent of this dentry on the kill list instead. The callers must
++ * make sure that __d_kill_final() is called on all dentries on the kill list.
+  */
+-static struct dentry *d_kill(struct dentry *dentry)
++static struct dentry *__d_kill(struct dentry *dentry, struct list_head *list,
++                             int greedy)
+       __releases(dentry->d_lock)
+       __releases(dcache_lock)
+ {
+@@ -173,13 +179,78 @@ static struct dentry *d_kill(struct dent
+ 
+       list_del(&dentry->d_u.d_child);
+       dentry_stat.nr_dentry--;        /* For d_free, below */
+-      /*drops the locks, at that point nobody can reach this dentry */
++
++      /*
++       * If we are not greedy we just put this on a list for later processing
++       * (follow up to parent, releasing of inode and freeing dentry memory).
++       */
++      if (!greedy) {
++              list_del_init(&dentry->d_alias);
++              /* at this point nobody can reach this dentry */
++              list_add(&dentry->d_lru, list);
++              spin_unlock(&dentry->d_lock);
++              spin_unlock(&dcache_lock);
++              __shrink_d_unions(dentry, list);
++              return NULL;
++      }
++
++      /* drops the locks, at that point nobody can reach this dentry */
+       dentry_iput(dentry);
++      /* If the dentry was in an union delete them */
++      __shrink_d_unions(dentry, list);
++      if (IS_ROOT(dentry))
++              parent = NULL;
++      else
++              parent = dentry->d_parent;
++      d_free(dentry);
++      return parent;
++}
++
++void __dput(struct dentry *, struct list_head *, int);
++
++static void __d_kill_final(struct dentry *dentry, struct list_head *list)
++{
++      struct dentry *parent;
++      struct inode *inode = dentry->d_inode;
++
++      if (inode) {
++              dentry->d_inode = NULL;
++              if (!inode->i_nlink)
++                      fsnotify_inoderemove(inode);
++              if (dentry->d_op && dentry->d_op->d_iput)
++                      dentry->d_op->d_iput(dentry, inode);
++              else
++                      iput(inode);
++      }
++
+       if (IS_ROOT(dentry))
+               parent = NULL;
+       else
+               parent = dentry->d_parent;
+       d_free(dentry);
++      __dput(parent, list, 1);
++}
++
++/**
++ * d_kill - kill dentry and return parent
++ * @dentry: dentry to kill
++ *
++ * The dentry must already be unhashed and removed from the LRU.
++ *
++ * If this is the root of the dentry tree, return NULL.
++ */
++static struct dentry *d_kill(struct dentry *dentry)
++{
++      LIST_HEAD(mortuary);
++      struct dentry *parent;
++
++      parent = __d_kill(dentry, &mortuary, 1);
++      while (!list_empty(&mortuary)) {
++              dentry = list_entry(mortuary.next, struct dentry, d_lru);
++              list_del(&dentry->d_lru);
++              __d_kill_final(dentry, &mortuary);
++      }
++
+       return parent;
+ }
+ 
+@@ -200,19 +271,24 @@ static struct dentry *d_kill(struct dent
+  * Real recursion would eat up our stack space.
+  */
+ 
+-/*
+- * dput - release a dentry
+- * @dentry: dentry to release 
++/**
++ * __dput - release a dentry
++ * @dentry: dentry to release
++ * @list: kill list argument for __d_kill()
++ * @greedy: greedy argument for __d_kill()
+  *
+  * Release a dentry. This will drop the usage count and if appropriate
+  * call the dentry unlink method as well as removing it from the queues and
+  * releasing its resources. If the parent dentries were scheduled for release
+- * they too may now get deleted.
++ * they too may now get deleted if @greedy is not zero. Otherwise parent is
++ * added to the kill list. The callers must make sure that __d_kill_final() is
++ * called on all dentries on the kill list.
++ *
++ * You probably want to use dput() instead.
+  *
+  * no dcache lock, please.
+  */
+-
+-void dput(struct dentry *dentry)
++void __dput(struct dentry *dentry, struct list_head *list, int greedy)
+ {
+       if (!dentry)
+               return;
+@@ -253,12 +329,35 @@ unhash_it:
+ kill_it:
+       /* if dentry was on the d_lru list delete it from there */
+       dentry_lru_del(dentry);
+-      dentry = d_kill(dentry);
++      dentry = __d_kill(dentry, list, greedy);
+       if (dentry)
+               goto repeat;
+ }
+ 
+ /**
++ * dput - release a dentry
++ * @dentry: dentry to release
++ *
++ * Release a dentry. This will drop the usage count and if appropriate
++ * call the dentry unlink method as well as removing it from the queues and
++ * releasing its resources. If the parent dentries were scheduled for release
++ * they too may now get deleted.
++ *
++ * no dcache lock, please.
++ */
++void dput(struct dentry *dentry)
++{
++      LIST_HEAD(mortuary);
++
++      __dput(dentry, &mortuary, 1);
++      while (!list_empty(&mortuary)) {
++              dentry = list_entry(mortuary.next, struct dentry, d_lru);
++              list_del(&dentry->d_lru);
++              __d_kill_final(dentry, &mortuary);
++      }
++}
++
++/**
+  * d_invalidate - invalidate a dentry
+  * @dentry: dentry to invalidate
+  *
+@@ -690,6 +789,7 @@ static void shrink_dcache_for_umount_sub
+                                       iput(inode);
+                       }
+ 
++                      shrink_d_unions(dentry);
+                       d_free(dentry);
+ 
+                       /* finished when we fall off the top of the tree,
+@@ -952,6 +1052,10 @@ struct dentry *d_alloc(struct dentry * p
+       INIT_LIST_HEAD(&dentry->d_lru);
+       INIT_LIST_HEAD(&dentry->d_subdirs);
+       INIT_LIST_HEAD(&dentry->d_alias);
++#ifdef CONFIG_UNION_MOUNT
++      INIT_LIST_HEAD(&dentry->d_unions);
++      dentry->d_unionized = 0;
++#endif
+ 
+       if (parent) {
+               dentry->d_parent = dget(parent);
+@@ -982,8 +1086,10 @@ struct dentry *d_alloc_name(struct dentr
+ /* the caller must hold dcache_lock */
+ static void __d_instantiate(struct dentry *dentry, struct inode *inode)
+ {
+-      if (inode)
++      if (inode) {
++              dentry->d_flags &= ~(DCACHE_WHITEOUT|DCACHE_FALLTHRU);
+               list_add(&dentry->d_alias, &inode->i_dentry);
++      }
+       dentry->d_inode = inode;
+       fsnotify_d_instantiate(dentry, inode);
+ }
+@@ -1514,7 +1620,9 @@ void d_delete(struct dentry * dentry)
+       spin_lock(&dentry->d_lock);
+       isdir = S_ISDIR(dentry->d_inode->i_mode);
+       if (atomic_read(&dentry->d_count) == 1) {
++              __d_drop_unions(dentry);
+               dentry_iput(dentry);
++              shrink_d_unions(dentry);
+               fsnotify_nameremove(dentry, isdir);
+               return;
+       }
+@@ -1525,14 +1633,14 @@ void d_delete(struct dentry * dentry)
+       spin_unlock(&dentry->d_lock);
+       spin_unlock(&dcache_lock);
+ 
++      shrink_d_unions(dentry);
+       fsnotify_nameremove(dentry, isdir);
+ }
+ 
+ static void __d_rehash(struct dentry * entry, struct hlist_head *list)
+ {
+-
+-      entry->d_flags &= ~DCACHE_UNHASHED;
+-      hlist_add_head_rcu(&entry->d_hash, list);
++      entry->d_flags &= ~DCACHE_UNHASHED;
++      hlist_add_head_rcu(&entry->d_hash, list);
+ }
+ 
+ static void _d_rehash(struct dentry * entry)
+@@ -1551,6 +1659,7 @@ void d_rehash(struct dentry * entry)
+ {
+       spin_lock(&dcache_lock);
+       spin_lock(&entry->d_lock);
++      BUG_ON(!d_unhashed(entry));
+       _d_rehash(entry);
+       spin_unlock(&entry->d_lock);
+       spin_unlock(&dcache_lock);
+@@ -2183,7 +2292,9 @@ resume:
+               struct list_head *tmp = next;
+               struct dentry *dentry = list_entry(tmp, struct dentry, d_u.d_child);
+               next = tmp->next;
+-              if (d_unhashed(dentry)||!dentry->d_inode)
++              if (d_unhashed(dentry)||(!dentry->d_inode &&
++                                       !d_is_whiteout(dentry) &&
++                                       !d_is_fallthru(dentry)))
+                       continue;
+               if (!list_empty(&dentry->d_subdirs)) {
+                       this_parent = dentry;
+--- a/fs/ext2/dir.c
++++ b/fs/ext2/dir.c
+@@ -219,7 +219,8 @@ static inline int ext2_match (int len, c
+ {
+       if (len != de->name_len)
+               return 0;
+-      if (!de->inode)
++      if (!de->inode && ((de->file_type != EXT2_FT_WHT) &&
++                         (de->file_type != EXT2_FT_FALLTHRU)))
+               return 0;
+       return !memcmp(name, de->name, len);
+ }
+@@ -255,6 +256,8 @@ static unsigned char ext2_filetype_table
+       [EXT2_FT_FIFO]          = DT_FIFO,
+       [EXT2_FT_SOCK]          = DT_SOCK,
+       [EXT2_FT_SYMLINK]       = DT_LNK,
++      [EXT2_FT_WHT]           = DT_WHT,
++      [EXT2_FT_FALLTHRU]      = DT_UNKNOWN,
+ };
+ 
+ #define S_SHIFT 12
+@@ -341,6 +344,18 @@ ext2_readdir (struct file * filp, void *
+                                       ext2_put_page(page);
+                                       return 0;
+                               }
++                      } else if (de->file_type == EXT2_FT_FALLTHRU) {
++                              int over;
++                              unsigned char d_type = DT_UNKNOWN;
++
++                              offset = (char *)de - kaddr;
++                              over = filldir(dirent, de->name, de->name_len,
++                                              (n<<PAGE_CACHE_SHIFT) | offset,
++                                              123, d_type);
++                              if (over) {
++                                      ext2_put_page(page);
++                                      return 0;
++                              }
+                       }
+                       filp->f_pos += ext2_rec_len_from_disk(de->rec_len);
+               }
+@@ -448,6 +463,30 @@ ino_t ext2_inode_by_name(struct inode *d
+       return res;
+ }
+ 
++/* Special version for filetype based whiteout support */
++ino_t ext2_inode_by_dentry(struct inode *dir, struct dentry *dentry)
++{
++      ino_t res = 0;
++      struct ext2_dir_entry_2 *de;
++      struct page *page;
++
++      de = ext2_find_entry (dir, &dentry->d_name, &page);
++      if (de) {
++              res = le32_to_cpu(de->inode);
++              if (!res && de->file_type == EXT2_FT_WHT) {
++                      spin_lock(&dentry->d_lock);
++                      dentry->d_flags |= DCACHE_WHITEOUT;
++                      spin_unlock(&dentry->d_lock);
++              } else if(!res && de->file_type == EXT2_FT_FALLTHRU) {
++                      spin_lock(&dentry->d_lock);
++                      dentry->d_flags |= DCACHE_FALLTHRU;
++                      spin_unlock(&dentry->d_lock);
++              }
++              ext2_put_page(page);
++      }
++      return res;
++}
++
+ /* Releases the page */
+ void ext2_set_link(struct inode *dir, struct ext2_dir_entry_2 *de,
+                  struct page *page, struct inode *inode, int update_times)
+@@ -472,9 +511,10 @@ void ext2_set_link(struct inode *dir, st
+ }
+ 
+ /*
+- *    Parent is locked.
++ * Find or append a given dentry to the parent directory
+  */
+-int ext2_add_link (struct dentry *dentry, struct inode *inode)
++static ext2_dirent * ext2_append_entry(struct dentry * dentry,
++                                     struct page ** page)
+ {
+       struct inode *dir = dentry->d_parent->d_inode;
+       const char *name = dentry->d_name.name;
+@@ -482,13 +522,10 @@ int ext2_add_link (struct dentry *dentry
+       unsigned chunk_size = ext2_chunk_size(dir);
+       unsigned reclen = EXT2_DIR_REC_LEN(namelen);
+       unsigned short rec_len, name_len;
+-      struct page *page = NULL;
+-      ext2_dirent * de;
++      ext2_dirent * de = NULL;
+       unsigned long npages = dir_pages(dir);
+       unsigned long n;
+       char *kaddr;
+-      loff_t pos;
+-      int err;
+ 
+       /*
+        * We take care of directory expansion in the same loop.
+@@ -498,55 +535,97 @@ int ext2_add_link (struct dentry *dentry
+       for (n = 0; n <= npages; n++) {
+               char *dir_end;
+ 
+-              page = ext2_get_page(dir, n, 0);
+-              err = PTR_ERR(page);
+-              if (IS_ERR(page))
++              *page = ext2_get_page(dir, n, 0);
++              de = ERR_PTR(PTR_ERR(*page));
++              if (IS_ERR(*page))
+                       goto out;
+-              lock_page(page);
+-              kaddr = page_address(page);
++              lock_page(*page);
++              kaddr = page_address(*page);
+               dir_end = kaddr + ext2_last_byte(dir, n);
+               de = (ext2_dirent *)kaddr;
+               kaddr += PAGE_CACHE_SIZE - reclen;
+               while ((char *)de <= kaddr) {
+                       if ((char *)de == dir_end) {
+                               /* We hit i_size */
+-                              name_len = 0;
+-                              rec_len = chunk_size;
++                              de->name_len = 0;
+                               de->rec_len = ext2_rec_len_to_disk(chunk_size);
+                               de->inode = 0;
++                              de->file_type = 0;
+                               goto got_it;
+                       }
+                       if (de->rec_len == 0) {
+                               ext2_error(dir->i_sb, __func__,
+                                       "zero-length directory entry");
+-                              err = -EIO;
++                              de = ERR_PTR(-EIO);
+                               goto out_unlock;
+                       }
+-                      err = -EEXIST;
+                       if (ext2_match (namelen, name, de))
+-                              goto out_unlock;
++                              goto got_it;
+                       name_len = EXT2_DIR_REC_LEN(de->name_len);
+                       rec_len = ext2_rec_len_from_disk(de->rec_len);
+-                      if (!de->inode && rec_len >= reclen)
++                      if (!de->inode && (de->file_type != EXT2_FT_WHT) &&
++                          (de->file_type != EXT2_FT_FALLTHRU) &&
++                          (rec_len >= reclen))
+                               goto got_it;
+                       if (rec_len >= name_len + reclen)
+                               goto got_it;
+                       de = (ext2_dirent *) ((char *) de + rec_len);
+               }
+-              unlock_page(page);
+-              ext2_put_page(page);
++              unlock_page(*page);
++              ext2_put_page(*page);
+       }
++
+       BUG();
+-      return -EINVAL;
+ 
+ got_it:
++      return de;
++      /* OFFSET_CACHE */
++out_unlock:
++      unlock_page(*page);
++      ext2_put_page(*page);
++out:
++      return de;
++}
++
++/*
++ *    Parent is locked.
++ */
++int ext2_add_link (struct dentry *dentry, struct inode *inode)
++{
++      struct inode *dir = dentry->d_parent->d_inode;
++      const char *name = dentry->d_name.name;
++      int namelen = dentry->d_name.len;
++      unsigned short rec_len, name_len;
++      ext2_dirent * de;
++      struct page *page;
++      loff_t pos;
++      int err;
++
++      de = ext2_append_entry(dentry, &page);
++      if (IS_ERR(de))
++              return PTR_ERR(de);
++
++      err = -EEXIST;
++      if (ext2_match (namelen, name, de)) {
++              if ((de->file_type == EXT2_FT_WHT) ||
++                  (de->file_type == EXT2_FT_FALLTHRU))
++                      goto got_it;
++              goto out_unlock;
++      }
++
++got_it:
++      name_len = EXT2_DIR_REC_LEN(de->name_len);
++      rec_len = ext2_rec_len_from_disk(de->rec_len);
++
+       pos = page_offset(page) +
+               (char*)de - (char*)page_address(page);
+       err = __ext2_write_begin(NULL, page->mapping, pos, rec_len, 0,
+                                                       &page, NULL);
+       if (err)
+               goto out_unlock;
+-      if (de->inode) {
++      if (de->inode || (((de->file_type == EXT2_FT_WHT) ||
++                         (de->file_type == EXT2_FT_FALLTHRU)) &&
++                        !ext2_match (namelen, name, de))) {
+               ext2_dirent *de1 = (ext2_dirent *) ((char *) de + name_len);
+               de1->rec_len = ext2_rec_len_to_disk(rec_len - name_len);
+               de->rec_len = ext2_rec_len_to_disk(name_len);
+@@ -563,7 +642,60 @@ got_it:
+       /* OFFSET_CACHE */
+ out_put:
+       ext2_put_page(page);
+-out:
++      return err;
++out_unlock:
++      unlock_page(page);
++      goto out_put;
++}
++
++/*
++ * Create a fallthru entry.
++ */
++int ext2_fallthru_entry (struct inode *dir, struct dentry *dentry)
++{
++      const char *name = dentry->d_name.name;
++      int namelen = dentry->d_name.len;
++      unsigned short rec_len, name_len;
++      ext2_dirent * de;
++      struct page *page;
++      loff_t pos;
++      int err;
++
++      de = ext2_append_entry(dentry, &page);
++      if (IS_ERR(de))
++              return PTR_ERR(de);
++
++      err = -EEXIST;
++      if (ext2_match (namelen, name, de))
++              goto out_unlock;
++
++      name_len = EXT2_DIR_REC_LEN(de->name_len);
++      rec_len = ext2_rec_len_from_disk(de->rec_len);
++
++      pos = page_offset(page) +
++              (char*)de - (char*)page_address(page);
++      err = __ext2_write_begin(NULL, page->mapping, pos, rec_len, 0,
++                                                      &page, NULL);
++      if (err)
++              goto out_unlock;
++      if (de->inode || (de->file_type == EXT2_FT_WHT) ||
++          (de->file_type == EXT2_FT_FALLTHRU)) {
++              ext2_dirent *de1 = (ext2_dirent *) ((char *) de + name_len);
++              de1->rec_len = ext2_rec_len_to_disk(rec_len - name_len);
++              de->rec_len = ext2_rec_len_to_disk(name_len);
++              de = de1;
++      }
++      de->name_len = namelen;
++      memcpy(de->name, name, namelen);
++      de->inode = 0;
++      de->file_type = EXT2_FT_FALLTHRU;
++      err = ext2_commit_chunk(page, pos, rec_len);
++      dir->i_mtime = dir->i_ctime = CURRENT_TIME_SEC;
++      EXT2_I(dir)->i_flags &= ~EXT2_BTREE_FL;
++      mark_inode_dirty(dir);
++      /* OFFSET_CACHE */
++out_put:
++      ext2_put_page(page);
+       return err;
+ out_unlock:
+       unlock_page(page);
+@@ -616,6 +748,70 @@ out:
+       return err;
+ }
+ 
++int ext2_whiteout_entry (struct inode * dir, struct dentry * dentry,
++                       struct ext2_dir_entry_2 * de, struct page * page)
++{
++      const char *name = dentry->d_name.name;
++      int namelen = dentry->d_name.len;
++      unsigned short rec_len, name_len;
++      loff_t pos;
++      int err;
++
++      if (!de) {
++              de = ext2_append_entry(dentry, &page);
++              BUG_ON(!de);
++      }
++
++      err = -EEXIST;
++      if (ext2_match (namelen, name, de) &&
++          (de->file_type == EXT2_FT_WHT)) {
++              ext2_error(dir->i_sb, __func__,
++                         "entry is already a whiteout in directory #%lu",
++                         dir->i_ino);
++              goto out_unlock;
++      }
++
++      name_len = EXT2_DIR_REC_LEN(de->name_len);
++      rec_len = ext2_rec_len_from_disk(de->rec_len);
++
++      pos = page_offset(page) +
++              (char*)de - (char*)page_address(page);
++      err = __ext2_write_begin(NULL, page->mapping, pos, rec_len, 0,
++                                                      &page, NULL);
++      if (err)
++              goto out_unlock;
++      /*
++       * We whiteout an existing entry. Do what ext2_delete_entry() would do,
++       * except that we don't need to merge with the previous entry since
++       * we are going to reuse it.
++       */
++      if (ext2_match (namelen, name, de))
++              de->inode = 0;
++      if (de->inode || (((de->file_type == EXT2_FT_WHT) ||
++                         (de->file_type == EXT2_FT_FALLTHRU)) &&
++                        !ext2_match (namelen, name, de))) {
++              ext2_dirent *de1 = (ext2_dirent *) ((char *) de + name_len);
++              de1->rec_len = ext2_rec_len_to_disk(rec_len - name_len);
++              de->rec_len = ext2_rec_len_to_disk(name_len);
++              de = de1;
++      }
++      de->name_len = namelen;
++      memcpy(de->name, name, namelen);
++      de->inode = 0;
++      de->file_type = EXT2_FT_WHT;
++      err = ext2_commit_chunk(page, pos, rec_len);
++      dir->i_mtime = dir->i_ctime = CURRENT_TIME_SEC;
++      EXT2_I(dir)->i_flags &= ~EXT2_BTREE_FL;
++      mark_inode_dirty(dir);
++      /* OFFSET_CACHE */
++out_put:
++      ext2_put_page(page);
++      return err;
++out_unlock:
++      unlock_page(page);
++      goto out_put;
++}
++
+ /*
+  * Set the first fragment of directory.
+  */
+--- a/fs/ext2/ext2.h
++++ b/fs/ext2/ext2.h
+@@ -102,9 +102,13 @@ extern void ext2_rsv_window_add(struct s
+ /* dir.c */
+ extern int ext2_add_link (struct dentry *, struct inode *);
+ extern ino_t ext2_inode_by_name(struct inode *, struct qstr *);
++extern ino_t ext2_inode_by_dentry(struct inode *, struct dentry *);
+ extern int ext2_make_empty(struct inode *, struct inode *);
+ extern struct ext2_dir_entry_2 * ext2_find_entry (struct inode *,struct qstr *, struct page **);
+ extern int ext2_delete_entry (struct ext2_dir_entry_2 *, struct page *);
++extern int ext2_whiteout_entry (struct inode *, struct dentry *,
++                              struct ext2_dir_entry_2 *, struct page *);
++extern int ext2_fallthru_entry (struct inode *, struct dentry *);
+ extern int ext2_empty_dir (struct inode *);
+ extern struct ext2_dir_entry_2 * ext2_dotdot (struct inode *, struct page **);
+ extern void ext2_set_link(struct inode *, struct ext2_dir_entry_2 *, struct page *, struct inode *, int);
+--- a/fs/ext2/inode.c
++++ b/fs/ext2/inode.c
+@@ -1178,7 +1178,8 @@ void ext2_set_inode_flags(struct inode *
+ {
+       unsigned int flags = EXT2_I(inode)->i_flags;
+ 
+-      inode->i_flags &= ~(S_SYNC|S_APPEND|S_IMMUTABLE|S_NOATIME|S_DIRSYNC);
++      inode->i_flags &= ~(S_SYNC|S_APPEND|S_IMMUTABLE|S_NOATIME|S_DIRSYNC|
++                          S_OPAQUE);
+       if (flags & EXT2_SYNC_FL)
+               inode->i_flags |= S_SYNC;
+       if (flags & EXT2_APPEND_FL)
+@@ -1189,6 +1190,8 @@ void ext2_set_inode_flags(struct inode *
+               inode->i_flags |= S_NOATIME;
+       if (flags & EXT2_DIRSYNC_FL)
+               inode->i_flags |= S_DIRSYNC;
++      if (flags & EXT2_OPAQUE_FL)
++              inode->i_flags |= S_OPAQUE;
+ }
+ 
+ /* Propagate flags from i_flags to EXT2_I(inode)->i_flags */
+@@ -1196,8 +1199,8 @@ void ext2_get_inode_flags(struct ext2_in
+ {
+       unsigned int flags = ei->vfs_inode.i_flags;
+ 
+-      ei->i_flags &= ~(EXT2_SYNC_FL|EXT2_APPEND_FL|
+-                      EXT2_IMMUTABLE_FL|EXT2_NOATIME_FL|EXT2_DIRSYNC_FL);
++      ei->i_flags &= ~(EXT2_SYNC_FL|EXT2_APPEND_FL|EXT2_IMMUTABLE_FL|
++                       EXT2_NOATIME_FL|EXT2_DIRSYNC_FL|EXT2_OPAQUE_FL);
+       if (flags & S_SYNC)
+               ei->i_flags |= EXT2_SYNC_FL;
+       if (flags & S_APPEND)
+@@ -1208,6 +1211,8 @@ void ext2_get_inode_flags(struct ext2_in
+               ei->i_flags |= EXT2_NOATIME_FL;
+       if (flags & S_DIRSYNC)
+               ei->i_flags |= EXT2_DIRSYNC_FL;
++      if (flags & S_OPAQUE)
++              ei->i_flags |= EXT2_OPAQUE_FL;
+ }
+ 
+ struct inode *ext2_iget (struct super_block *sb, unsigned long ino)
+--- a/fs/ext2/namei.c
++++ b/fs/ext2/namei.c
+@@ -54,15 +54,16 @@ static inline int ext2_add_nondir(struct
+  * Methods themselves.
+  */
+ 
+-static struct dentry *ext2_lookup(struct inode * dir, struct dentry *dentry, struct nameidata *nd)
++static struct dentry *ext2_lookup(struct inode * dir, struct dentry *dentry,
++                                struct nameidata *nd)
+ {
+       struct inode * inode;
+       ino_t ino;
+-      
++
+       if (dentry->d_name.len > EXT2_NAME_LEN)
+               return ERR_PTR(-ENAMETOOLONG);
+ 
+-      ino = ext2_inode_by_name(dir, &dentry->d_name);
++      ino = ext2_inode_by_dentry(dir, dentry);
+       inode = NULL;
+       if (ino) {
+               inode = ext2_iget(dir->i_sb, ino);
+@@ -230,6 +231,10 @@ static int ext2_mkdir(struct inode * dir
+       else
+               inode->i_mapping->a_ops = &ext2_aops;
+ 
++      /* if we call mkdir on a whiteout create an opaque directory */
++      if (dentry->d_flags & DCACHE_WHITEOUT)
++              inode->i_flags |= S_OPAQUE;
++
+       inode_inc_link_count(inode);
+ 
+       err = ext2_make_empty(inode, dir);
+@@ -293,6 +298,78 @@ static int ext2_rmdir (struct inode * di
+       return err;
+ }
+ 
++/*
++ * Create a whiteout for the dentry
++ */
++static int ext2_whiteout(struct inode *dir, struct dentry *dentry,
++                       struct dentry *new_dentry)
++{
++      struct inode * inode = dentry->d_inode;
++      struct ext2_dir_entry_2 * de = NULL;
++      struct page * page;
++      int err = -ENOTEMPTY;
++
++      if (!EXT2_HAS_INCOMPAT_FEATURE(dir->i_sb,
++                                     EXT2_FEATURE_INCOMPAT_FILETYPE)) {
++              ext2_error (dir->i_sb, "ext2_whiteout",
++                          "can't set whiteout filetype");
++              err = -EPERM;
++              goto out;
++      }
++
++      if (inode) {
++              if (S_ISDIR(inode->i_mode) && !ext2_empty_dir(inode))
++                      goto out;
++
++              err = -ENOENT;
++              de = ext2_find_entry (dir, &dentry->d_name, &page);
++              if (!de)
++                      goto out;
++              lock_page(page);
++      }
++
++      err = ext2_whiteout_entry (dir, dentry, de, page);
++      if (err)
++              goto out;
++
++      spin_lock(&new_dentry->d_lock);
++      new_dentry->d_flags &= ~DCACHE_FALLTHRU;
++      new_dentry->d_flags |= DCACHE_WHITEOUT;
++      spin_unlock(&new_dentry->d_lock);
++      d_add(new_dentry, NULL);
++
++      if (inode) {
++              inode->i_ctime = dir->i_ctime;
++              inode_dec_link_count(inode);
++              if (S_ISDIR(inode->i_mode)) {
++                      inode->i_size = 0;
++                      inode_dec_link_count(inode);
++                      inode_dec_link_count(dir);
++              }
++      }
++      err = 0;
++out:
++      return err;
++}
++
++/*
++ * Create a fallthru entry.
++ */
++static int ext2_fallthru (struct inode *dir, struct dentry *dentry)
++{
++      int err;
++
++      err = ext2_fallthru_entry(dir, dentry);
++      if (err)
++              return err;
++
++      d_instantiate(dentry, NULL);
++      spin_lock(&dentry->d_lock);
++      dentry->d_flags |= DCACHE_FALLTHRU;
++      spin_unlock(&dentry->d_lock);
++      return 0;
++}
++
+ static int ext2_rename (struct inode * old_dir, struct dentry * old_dentry,
+       struct inode * new_dir, struct dentry * new_dentry )
+ {
+@@ -392,6 +469,8 @@ const struct inode_operations ext2_dir_i
+       .mkdir          = ext2_mkdir,
+       .rmdir          = ext2_rmdir,
+       .mknod          = ext2_mknod,
++      .whiteout       = ext2_whiteout,
++      .fallthru       = ext2_fallthru,
+       .rename         = ext2_rename,
+ #ifdef CONFIG_EXT2_FS_XATTR
+       .setxattr       = generic_setxattr,
+--- a/fs/ext2/super.c
++++ b/fs/ext2/super.c
+@@ -1062,6 +1062,13 @@ static int ext2_fill_super(struct super_
+       if (EXT2_HAS_COMPAT_FEATURE(sb, EXT3_FEATURE_COMPAT_HAS_JOURNAL))
+               ext2_warning(sb, __func__,
+                       "mounting ext3 filesystem as ext2");
++
++      /*
++       * Whiteouts (and fallthrus) require explicit whiteout support.
++       */
++      if (EXT2_HAS_INCOMPAT_FEATURE(sb, EXT2_FEATURE_INCOMPAT_WHITEOUT))
++              sb->s_flags |= MS_WHITEOUT;
++
+       ext2_setup_super (sb, es, sb->s_flags & MS_RDONLY);
+       return 0;
+ 
+--- a/fs/Kconfig
++++ b/fs/Kconfig
+@@ -59,6 +59,14 @@ source "fs/notify/Kconfig"
+ 
+ source "fs/quota/Kconfig"
+ 
++config UNION_MOUNT
++       bool "Union mount support (EXPERIMENTAL)"
++       depends on EXPERIMENTAL
++       ---help---
++         If you say Y here, you will be able to mount file systems as
++         union mount stacks. This is a VFS based implementation and
++         should work with all file systems. If unsure, say N.
++
+ source "fs/autofs/Kconfig"
+ source "fs/autofs4/Kconfig"
+ source "fs/fuse/Kconfig"
+--- a/fs/libfs.c
++++ b/fs/libfs.c
+@@ -133,6 +133,7 @@ int dcache_readdir(struct file * filp, v
+       struct dentry *cursor = filp->private_data;
+       struct list_head *p, *q = &cursor->d_u.d_child;
+       ino_t ino;
++      int d_type;
+       int i = filp->f_pos;
+ 
+       switch (i) {
+@@ -158,14 +159,25 @@ int dcache_readdir(struct file * filp, v
+                       for (p=q->next; p != &dentry->d_subdirs; p=p->next) {
+                               struct dentry *next;
+                               next = list_entry(p, struct dentry, d_u.d_child);
+-                              if (d_unhashed(next) || !next->d_inode)
++                              if (d_unhashed(next) || (!next->d_inode && !d_is_fallthru(next)))
+                                       continue;
+ 
++                              if (d_is_fallthru(next)) {
++                                      /* XXX Make up things we can
++                                       * only get out of the inode.
++                                       * Should probably really do a
++                                       * lookup instead. */
++                                      ino = 100; /* XXX Made up number of no significance */
++                                      d_type = DT_UNKNOWN;
++                              } else {
++                                      ino = next->d_inode->i_ino;
++                                      d_type = dt_type(next->d_inode);
++                              }
++
+                               spin_unlock(&dcache_lock);
+                               if (filldir(dirent, next->d_name.name, 
+                                           next->d_name.len, filp->f_pos, 
+-                                          next->d_inode->i_ino, 
+-                                          dt_type(next->d_inode)) < 0)
++                                          ino, d_type) < 0)
+                                       return 0;
+                               spin_lock(&dcache_lock);
+                               /* next is still alive */
+--- a/fs/Makefile
++++ b/fs/Makefile
+@@ -52,6 +52,7 @@ obj-$(CONFIG_NFS_COMMON)     += nfs_common/
+ obj-$(CONFIG_GENERIC_ACL)     += generic_acl.o
+ 
+ obj-y                         += quota/
++obj-$(CONFIG_UNION_MOUNT)     += union.o
+ 
+ obj-$(CONFIG_PROC_FS)         += proc/
+ obj-y                         += partitions/
+--- a/fs/namei.c
++++ b/fs/namei.c
+@@ -33,6 +33,7 @@
+ #include <linux/fcntl.h>
+ #include <linux/device_cgroup.h>
+ #include <linux/fs_struct.h>
++#include <linux/union.h>
+ #include <asm/uaccess.h>
+ 
+ #define ACC_MODE(x) ("\000\004\002\006"[(x)&O_ACCMODE])
+@@ -242,16 +243,17 @@ int generic_permission(struct inode *ino
+ }
+ 
+ /**
+- * inode_permission  -  check for access rights to a given inode
++ * __inode_permission  -  check for access rights to a given inode
+  * @inode:    inode to check permission on
+  * @mask:     right to check for (%MAY_READ, %MAY_WRITE, %MAY_EXEC)
++ * @rofs:     check for read-only fs
+  *
+  * Used to check for read/write/execute permissions on an inode.
+  * We use "fsuid" for this, letting us set arbitrary permissions
+  * for filesystem access without changing the "normal" uids which
+  * are used for other things.
+  */
+-int inode_permission(struct inode *inode, int mask)
++int __inode_permission(struct inode *inode, int mask, int rofs)
+ {
+       int retval;
+ 
+@@ -261,7 +263,7 @@ int inode_permission(struct inode *inode
+               /*
+                * Nobody gets write access to a read-only fs.
+                */
+-              if (IS_RDONLY(inode) &&
++              if ((rofs & IS_RDONLY(inode)) &&
+                   (S_ISREG(mode) || S_ISDIR(mode) || S_ISLNK(mode)))
+                       return -EROFS;
+ 
+@@ -289,6 +291,18 @@ int inode_permission(struct inode *inode
+ }
+ 
+ /**
++ * inode_permission  -  check for access rights to a given inode
++ * @inode:    inode to check permission on
++ * @mask:     right to check for (%MAY_READ, %MAY_WRITE, %MAY_EXEC)
++ *
++ * This version pays attention to the MS_RDONLY flag on the fs.
++ */
++int inode_permission(struct inode *inode, int mask)
++{
++      return __inode_permission(inode, mask, 1);
++}
++
++/**
+  * file_permission  -  check for additional access rights to a given file
+  * @file:     file to check access rights for
+  * @mask:     right to check for (%MAY_READ, %MAY_WRITE, %MAY_EXEC)
+@@ -417,15 +431,10 @@ do_revalidate(struct dentry *dentry, str
+  * Internal lookup() using the new generic dcache.
+  * SMP-safe
+  */
+-static struct dentry * cached_lookup(struct dentry * parent, struct qstr * name, struct nameidata *nd)
++static struct dentry *cache_lookup(struct dentry *parent, struct qstr *name,
++                                 struct nameidata *nd)
+ {
+-      struct dentry * dentry = __d_lookup(parent, name);
+-
+-      /* lockess __d_lookup may fail due to concurrent d_move() 
+-       * in some unrelated directory, so try with d_lookup
+-       */
+-      if (!dentry)
+-              dentry = d_lookup(parent, name);
++      struct dentry *dentry = d_lookup(parent, name);
+ 
+       if (dentry && dentry->d_op && dentry->d_op->d_revalidate)
+               dentry = do_revalidate(dentry, nd);
+@@ -434,6 +443,208 @@ static struct dentry * cached_lookup(str
+ }
+ 
+ /*
++ * Theory of operation for opaque, whiteout, and fallthru:
++ *
++ * whiteout: Unconditionally stop lookup here - ENOENT
++ *
++ * opaque: Don't lookup in directories lower in the union stack
++ *
++ * fallthru: While looking up an entry, ignore the opaque flag for the
++ * current directory only.
++ *
++ * A union stack is a linked list of directory dentries which appear
++ * in the same place in the namespace.  When constructing the union
++ * stack, we include directories below opaque directories so that we
++ * can properly handle fallthrus.  All non-fallthru lookups have to
++ * check for the opaque flag on the parent directory and obey it.
++ *
++ * In general, the code pattern is to lookup the the topmost entry
++ * first (either the first visible non-negative dentry or a negative
++ * dentry in the topmost layer of the union), then build the union
++ * stack for the newly looked-up entry (if it is a directory).
++ */
++
++/**
++ * __cache_lookup_topmost - lookup the topmost (non-)negative dentry
++ *
++ * @nd - parent's nameidata
++ * @name - pathname part to lookup
++ * @path - found dentry for pathname part
++ *
++ * This is used for union mount lookups from dcache. The first non-negative
++ * dentry is searched on all layers of the union stack. Otherwise the topmost
++ * negative dentry is returned.
++ */
++static int __cache_lookup_topmost(struct nameidata *nd, struct qstr *name,
++                                struct path *path)
++{
++      struct dentry *dentry;
++
++      dentry = d_lookup(nd->path.dentry, name);
++      if (dentry && dentry->d_op && dentry->d_op->d_revalidate)
++              dentry = do_revalidate(dentry, nd);
++
++      /*
++       * Remember the topmost negative dentry in case we don't find anything
++       */
++      path->dentry = dentry;
++      path->mnt = dentry ? nd->path.mnt : NULL;
++
++      if (!dentry || (dentry->d_inode || d_is_whiteout(dentry)))
++              return !dentry;
++
++      /* Keep going through opaque directories if we found a fallthru */
++      if (IS_OPAQUE(nd->path.dentry->d_inode) && !d_is_fallthru(dentry))
++              return !dentry;
++
++      /* look for the first non-negative or whiteout dentry */
++
++      while (follow_union_down(&nd->path)) {
++              dentry = d_hash_and_lookup(nd->path.dentry, name);
++
++              /*
++               * If parts of the union stack are not in the dcache we need
++               * to do a real lookup
++               */
++              if (!dentry)
++                      goto out_dput;
++
++              /*
++               * If parts of the union don't survive the revalidation we
++               * need to do a real lookup
++               */
++              if (dentry->d_op && dentry->d_op->d_revalidate) {
++                      dentry = do_revalidate(dentry, nd);
++                      if (!dentry)
++                              goto out_dput;
++              }
++
++              if (dentry->d_inode || d_is_whiteout(dentry))
++                      goto out_dput;
++
++              /* Stop the lookup on opaque parent and non-fallthru child */
++              if (IS_OPAQUE(nd->path.dentry->d_inode) && !d_is_fallthru(dentry))
++                      goto out_dput;
++
++              dput(dentry);
++      }
++
++      return !dentry;
++
++out_dput:
++      dput(path->dentry);
++      path->dentry = dentry;
++      path->mnt = dentry ? mntget(nd->path.mnt) : NULL;
++      return !dentry;
++}
++
++/**
++ * __cache_lookup_build_union - build the union stack for this part,
++ * cached version
++ *
++ * This is called after you have the topmost dentry in @path.
++ */
++static int __cache_lookup_build_union(struct nameidata *nd, struct qstr *name,
++                                    struct path *path)
++{
++      struct path last = *path;
++      struct dentry *dentry;
++
++      while (follow_union_down(&nd->path)) {
++              dentry = d_hash_and_lookup(nd->path.dentry, name);
++              if (!dentry)
++                      return 1;
++
++              if (dentry->d_op && dentry->d_op->d_revalidate) {
++                      dentry = do_revalidate(dentry, nd);
++                      if (!dentry)
++                              return 1;
++              }
++
++              if (d_is_whiteout(dentry)) {
++                      dput(dentry);
++                      break;
++              }
++
++              if (!dentry->d_inode) {
++                      dput(dentry);
++                      continue;
++              }
++
++              /* only directories can be part of a union stack */
++              if (!S_ISDIR(dentry->d_inode->i_mode)) {
++                      dput(dentry);
++                      break;
++              }
++
++              /* Add the newly discovered dir to the union stack */
++              append_to_union(last.mnt, last.dentry, nd->path.mnt, dentry);
++
++              if (last.dentry != path->dentry)
++                      path_put(&last);
++              last.dentry = dentry;
++              last.mnt = mntget(nd->path.mnt);
++      }
++
++      if (last.dentry != path->dentry)
++              path_put(&last);
++
++      return 0;
++}
++
++/**
++ * cache_lookup_union - lookup a single pathname part from dcache
++ *
++ * This is a union mount capable version of what d_lookup() & revalidate()
++ * would do. This function returns a valid (union) dentry on success.
++ *
++ * Remember: On failure it means that parts of the union aren't cached. You
++ * should call real_lookup() afterwards to find the proper (union) dentry.
++ */
++static int cache_lookup_union(struct nameidata *nd, struct qstr *name,
++                            struct path *path)
++{
++      int res ;
++
++      if (!IS_MNT_UNION(nd->path.mnt)) {
++              path->dentry = cache_lookup(nd->path.dentry, name, nd);
++              path->mnt = path->dentry ? nd->path.mnt : NULL;
++              res = path->dentry ? 0 : 1;
++      } else {
++              struct path safe = {
++                      .dentry = nd->path.dentry,
++                      .mnt = nd->path.mnt
++              };
++
++              path_get(&safe);
++              res = __cache_lookup_topmost(nd, name, path);
++              if (res)
++                      goto out;
++
++              /* only directories can be part of a union stack */
++              if (!path->dentry->d_inode ||
++                  !S_ISDIR(path->dentry->d_inode->i_mode))
++                      goto out;
++
++              /* Build the union stack for this part */
++              res = __cache_lookup_build_union(nd, name, path);
++              if (res) {
++                      dput(path->dentry);
++                      if (path->mnt != safe.mnt)
++                              mntput(path->mnt);
++                      goto out;
++              }
++
++out:
++              path_put(&nd->path);
++              nd->path.dentry = safe.dentry;
++              nd->path.mnt = safe.mnt;
++      }
++
++      return res;
++}
++
++/*
+  * Short-cut version of permission(), for calling by
+  * path_walk(), when dcache lock is held.  Combines parts
+  * of permission() and generic_permission(), and tests ONLY for
+@@ -473,10 +684,11 @@ ok:
+  * make sure that nobody added the entry to the dcache in the meantime..
+  * SMP-safe
+  */
+-static struct dentry * real_lookup(struct dentry * parent, struct qstr * name, struct nameidata *nd)
++static int real_lookup(struct nameidata *nd, struct qstr *name,
++                     struct path *path)
+ {
+-      struct dentry * result;
+-      struct inode *dir = parent->d_inode;
++      struct inode *dir = nd->path.dentry->d_inode;
++      int res = 0;
+ 
+       mutex_lock(&dir->i_mutex);
+       /*
+@@ -493,27 +705,36 @@ static struct dentry * real_lookup(struc
+        *
+        * so doing d_lookup() (with seqlock), instead of lockfree __d_lookup
+        */
+-      result = d_lookup(parent, name);
+-      if (!result) {
++      path->dentry = d_lookup(nd->path.dentry, name);
++      path->mnt = nd->path.mnt;
++      if (!path->dentry) {
+               struct dentry *dentry;
+ 
+               /* Don't create child dentry for a dead directory. */
+-              result = ERR_PTR(-ENOENT);
+-              if (IS_DEADDIR(dir))
++              if (IS_DEADDIR(dir)) {
++                      res = -ENOENT;
+                       goto out_unlock;
++              }
+ 
+-              dentry = d_alloc(parent, name);
+-              result = ERR_PTR(-ENOMEM);
++              dentry = d_alloc(nd->path.dentry, name);
+               if (dentry) {
+-                      result = dir->i_op->lookup(dir, dentry, nd);
+-                      if (result)
++                      path->dentry = dir->i_op->lookup(dir, dentry, nd);
++                      if (path->dentry) {
+                               dput(dentry);
+-                      else
+-                              result = dentry;
++                              if (IS_ERR(path->dentry)) {
++                                      res = PTR_ERR(path->dentry);
++                                      path->dentry = NULL;
++                                      path->mnt = NULL;
++                              }
++                      } else
++                              path->dentry = dentry;
++              } else {
++                      res = -ENOMEM;
++                      path->mnt = NULL;
+               }
+ out_unlock:
+               mutex_unlock(&dir->i_mutex);
+-              return result;
++              return res;
+       }
+ 
+       /*
+@@ -521,12 +742,170 @@ out_unlock:
+        * we waited on the semaphore. Need to revalidate.
+        */
+       mutex_unlock(&dir->i_mutex);
+-      if (result->d_op && result->d_op->d_revalidate) {
+-              result = do_revalidate(result, nd);
+-              if (!result)
+-                      result = ERR_PTR(-ENOENT);
++      if (path->dentry->d_op && path->dentry->d_op->d_revalidate) {
++              path->dentry = do_revalidate(path->dentry, nd);
++              if (!path->dentry) {
++                      res = -ENOENT;
++                      path->mnt = NULL;
++              }
++              if (IS_ERR(path->dentry)) {
++                      res = PTR_ERR(path->dentry);
++                      path->dentry = NULL;
++                      path->mnt = NULL;
++              }
+       }
+-      return result;
++
++      return res;
++}
++
++/**
++ * __real_lookup_topmost - lookup topmost dentry, non-cached version
++ *
++ * If we reach a dentry with restricted access, we just stop the lookup
++ * because we shouldn't see through that dentry. Same thing for dentry
++ * type mismatch and whiteouts.
++ *
++ * FIXME:
++ * - handle union stacks in use
++ * - handle union stacks mounted upon union stacks
++ * - avoid unnecessary allocations of union locks
++ */
++static int __real_lookup_topmost(struct nameidata *nd, struct qstr *name,
++                               struct path *path)
++{
++      struct path next;
++      int err;
++
++      err = real_lookup(nd, name, path);
++      if (err)
++              return err;
++
++      if (path->dentry->d_inode || d_is_whiteout(path->dentry))
++              return 0;
++
++      if (IS_OPAQUE(nd->path.dentry->d_inode) && !d_is_fallthru(path->dentry))
++              return 0;
++
++      while (follow_union_down(&nd->path)) {
++              name->hash = full_name_hash(name->name, name->len);
++              if (nd->path.dentry->d_op && nd->path.dentry->d_op->d_hash) {
++                      err = nd->path.dentry->d_op->d_hash(nd->path.dentry,
++                                                          name);
++                      if (err < 0)
++                              goto out;
++              }
++
++              err = real_lookup(nd, name, &next);
++              if (err)
++                      goto out;
++
++              if (next.dentry->d_inode || d_is_whiteout(next.dentry)) {
++                      dput(path->dentry);
++                      mntget(next.mnt);
++                      *path = next;
++                      goto out;
++              }
++
++              if (IS_OPAQUE(nd->path.dentry->d_inode) && !d_is_fallthru(next.dentry))
++                      goto out;
++
++              dput(next.dentry);
++      }
++out:
++      if (err)
++              dput(path->dentry);
++      return err;
++}
++
++/**
++ * __real_lookup_build_union: build the union stack for this pathname
++ * part, non-cached version
++ *
++ * Called when not all parts of the union stack are in cache
++ */
++
++static int __real_lookup_build_union(struct nameidata *nd, struct qstr *name,
++                                   struct path *path)
++{
++      struct path last = *path;
++      struct path next;
++      int err = 0;
++
++      while (follow_union_down(&nd->path)) {
++              /* We need to recompute the hash for lower layer lookups */
++              name->hash = full_name_hash(name->name, name->len);
++              if (nd->path.dentry->d_op && nd->path.dentry->d_op->d_hash) {
++                      err = nd->path.dentry->d_op->d_hash(nd->path.dentry,
++                                                          name);
++                      if (err < 0)
++                              goto out;
++              }
++
++              err = real_lookup(nd, name, &next);
++              if (err)
++                      goto out;
++
++              if (d_is_whiteout(next.dentry)) {
++                      dput(next.dentry);
++                      break;
++              }
++
++              if (!next.dentry->d_inode) {
++                      dput(next.dentry);
++                      continue;
++              }
++
++              /* only directories can be part of a union stack */
++              if (!S_ISDIR(next.dentry->d_inode->i_mode)) {
++                      dput(next.dentry);
++                      break;
++              }
++
++              /* now we know we found something "real" */
++              append_to_union(last.mnt, last.dentry, next.mnt, next.dentry);
++
++              if (last.dentry != path->dentry)
++                      path_put(&last);
++              last.dentry = next.dentry;
++              last.mnt = mntget(next.mnt);
++      }
++
++      if (last.dentry != path->dentry)
++              path_put(&last);
++out:
++      return err;
++}
++
++static int real_lookup_union(struct nameidata *nd, struct qstr *name,
++                           struct path *path)
++{
++      struct path safe = { .dentry = nd->path.dentry, .mnt = nd->path.mnt };
++      int res ;
++
++      path_get(&safe);
++      res = __real_lookup_topmost(nd, name, path);
++      if (res)
++              goto out;
++
++      /* only directories can be part of a union stack */
++      if (!path->dentry->d_inode ||
++          !S_ISDIR(path->dentry->d_inode->i_mode))
++              goto out;
++
++      /* Build the union stack for this part */
++      res = __real_lookup_build_union(nd, name, path);
++      if (res) {
++              dput(path->dentry);
++              if (path->mnt != safe.mnt)
++                      mntput(path->mnt);
++              goto out;
++      }
++
++out:
++      path_put(&nd->path);
++      nd->path.dentry = safe.dentry;
++      nd->path.mnt = safe.mnt;
++      return res;
+ }
+ 
+ /*
+@@ -629,11 +1008,8 @@ static __always_inline int __do_follow_l
+       touch_atime(path->mnt, dentry);
+       nd_set_link(nd, NULL);
+ 
+-      if (path->mnt != nd->path.mnt) {
+-              path_to_nameidata(path, nd);
+-              dget(dentry);
+-      }
+-      mntget(path->mnt);
++      if (path->mnt == nd->path.mnt)
++              mntget(nd->path.mnt);
+       cookie = dentry->d_inode->i_op->follow_link(dentry, nd);
+       error = PTR_ERR(cookie);
+       if (!IS_ERR(cookie)) {
+@@ -721,7 +1097,7 @@ static int __follow_mount(struct path *p
+       return res;
+ }
+ 
+-static void follow_mount(struct path *path)
++void follow_mount(struct path *path)
+ {
+       while (d_mountpoint(path->dentry)) {
+               struct vfsmount *mounted = lookup_mnt(path);
+@@ -786,6 +1162,7 @@ static __always_inline void follow_dotdo
+               nd->path.mnt = parent;
+       }
+       follow_mount(&nd->path);
++      follow_union_mount(&nd->path);
+ }
+ 
+ /*
+@@ -796,35 +1173,55 @@ static __always_inline void follow_dotdo
+ static int do_lookup(struct nameidata *nd, struct qstr *name,
+                    struct path *path)
+ {
+-      struct vfsmount *mnt = nd->path.mnt;
+-      struct dentry *dentry = __d_lookup(nd->path.dentry, name);
++      int err;
++
++      if (IS_MNT_UNION(nd->path.mnt))
++              goto need_union_lookup;
+ 
+-      if (!dentry)
++      path->dentry = __d_lookup(nd->path.dentry, name);
++      path->mnt = nd->path.mnt;
++      if (!path->dentry)
+               goto need_lookup;
+-      if (dentry->d_op && dentry->d_op->d_revalidate)
++      if (path->dentry->d_op && path->dentry->d_op->d_revalidate)
+               goto need_revalidate;
++
+ done:
+-      path->mnt = mnt;
+-      path->dentry = dentry;
+-      __follow_mount(path);
++      if (nd->path.mnt != path->mnt) {
++              nd->um_flags |= LAST_LOWLEVEL;
++              follow_mount(path);
++      } else
++              __follow_mount(path);
++      follow_union_mount(path);
+       return 0;
+ 
+ need_lookup:
+-      dentry = real_lookup(nd->path.dentry, name, nd);
+-      if (IS_ERR(dentry))
++      err = real_lookup(nd, name, path);
++      if (err)
++              goto fail;
++      goto done;
++
++need_union_lookup:
++      err = cache_lookup_union(nd, name, path);
++      if (!err && path->dentry)
++              goto done;
++
++      err = real_lookup_union(nd, name, path);
++      if (err)
+               goto fail;
+       goto done;
+ 
+ need_revalidate:
+-      dentry = do_revalidate(dentry, nd);
+-      if (!dentry)
++      path->dentry = do_revalidate(path->dentry, nd);
++      if (!path->dentry)
+               goto need_lookup;
+-      if (IS_ERR(dentry))
++      if (IS_ERR(path->dentry)) {
++              err = PTR_ERR(path->dentry);
+               goto fail;
++      }
+       goto done;
+ 
+ fail:
+-      return PTR_ERR(dentry);
++      return err;
+ }
+ 
+ /*
+@@ -851,6 +1248,8 @@ static int __link_path_walk(const char *
+       if (nd->depth)
+               lookup_flags = LOOKUP_FOLLOW | (nd->flags & LOOKUP_CONTINUE);
+ 
++      follow_union_mount(&nd->path);
++
+       /* At this point we know we have a real path component. */
+       for(;;) {
+               unsigned long hash;
+@@ -913,6 +1312,44 @@ static int __link_path_walk(const char *
+               if (err)
+                       break;
+ 
++              /*
++               * We want to create this element on the top level
++               * file system in two cases:
++               *
++               * - We are specifically told to - LOOKUP_TOPMOST.
++               * - This is a directory, and it does not yet exist on
++               *   the top level.  Various tricks only work if
++               *   directories always exist on the top level.
++               *
++               * In either case, only create this element on the top
++               * level if the last element is located on the lower
++               * level.  If the last element is located on the top
++               * level, then every single element in the path
++               * already exists on the top level.
++               *
++               * Note that we can assume that the parent is on the
++               * top level since we always create the directory on
++               * the top level.
++               */
++
++              if ((nd->um_flags & LAST_LOWLEVEL) &&
++                  ((next.dentry->d_inode &&
++                    S_ISDIR(next.dentry->d_inode->i_mode) &&
++                    (nd->path.mnt != next.mnt)) ||
++                   (nd->flags & LOOKUP_TOPMOST))) {
++                      struct dentry *dentry;
++
++                      dentry = union_create_topmost(nd, &this, &next);
++                      if (IS_ERR(dentry)) {
++                              err = PTR_ERR(dentry);
++                              goto out_dput;
++                      }
++                      path_put_conditional(&next, nd);
++                      next.mnt = nd->path.mnt;
++                      next.dentry = dentry;
++                      nd->um_flags &= ~LAST_LOWLEVEL;
++              }
++
+               err = -ENOENT;
+               inode = next.dentry->d_inode;
+               if (!inode)
+@@ -962,6 +1399,25 @@ last_component:
+               err = do_lookup(nd, &this, &next);
+               if (err)
+                       break;
++
++              if ((nd->um_flags & LAST_LOWLEVEL) &&
++                  ((next.dentry->d_inode &&
++                    S_ISDIR(next.dentry->d_inode->i_mode) &&
++                    (nd->path.mnt != next.mnt)) ||
++                   (nd->flags & LOOKUP_TOPMOST))) {
++                      struct dentry *dentry;
++
++                      dentry = union_create_topmost(nd, &this, &next);
++                      if (IS_ERR(dentry)) {
++                              err = PTR_ERR(dentry);
++                              goto out_dput;
++                      }
++                      path_put_conditional(&next, nd);
++                      next.mnt = nd->path.mnt;
++                      next.dentry = dentry;
++                      nd->um_flags &= ~LAST_LOWLEVEL;
++              }
++
+               inode = next.dentry->d_inode;
+               if ((lookup_flags & LOOKUP_FOLLOW)
+                   && inode && inode->i_op->follow_link) {
+@@ -1029,6 +1485,7 @@ static int path_init(int dfd, const char
+ 
+       nd->last_type = LAST_ROOT; /* if there are only slashes... */
+       nd->flags = flags;
++      nd->um_flags = 0;
+       nd->depth = 0;
+       nd->root.mnt = NULL;
+ 
+@@ -1172,61 +1629,437 @@ static int path_lookup_open(int dfd, con
+ }
+ 
+ static struct dentry *__lookup_hash(struct qstr *name,
+-              struct dentry *base, struct nameidata *nd)
++                                  struct dentry *base, struct nameidata *nd)
++{
++      struct dentry *dentry;
++      struct inode *inode;
++      int err;
++
++      inode = base->d_inode;
++
++      /*
++       * See if the low-level filesystem might want
++       * to use its own hash..
++       */
++      if (base->d_op && base->d_op->d_hash) {
++              err = base->d_op->d_hash(base, name);
++              dentry = ERR_PTR(err);
++              if (err < 0)
++                      goto out;
++      }
++
++      dentry = cache_lookup(base, name, nd);
++      if (!dentry) {
++              struct dentry *new;
++
++              /* Don't create child dentry for a dead directory. */
++              dentry = ERR_PTR(-ENOENT);
++              if (IS_DEADDIR(inode))
++                      goto out;
++
++              new = d_alloc(base, name);
++              dentry = ERR_PTR(-ENOMEM);
++              if (!new)
++                      goto out;
++              dentry = inode->i_op->lookup(inode, new, nd);
++              if (!dentry)
++                      dentry = new;
++              else
++                      dput(new);
++      }
++out:
++      return dentry;
++}
++
++/*
++ * Restricted form of lookup. Doesn't follow links, single-component only,
++ * needs parent already locked. Doesn't follow mounts.
++ * SMP-safe.
++ */
++static int lookup_hash(struct nameidata *nd, struct qstr *name,
++                     struct path *path)
++{
++      int err;
++
++      err = inode_permission(nd->path.dentry->d_inode, MAY_EXEC);
++      if (err)
++              return err;
++      path->mnt = nd->path.mnt;
++      path->dentry =  __lookup_hash(name, nd->path.dentry, nd);
++      if (IS_ERR(path->dentry)) {
++              err = PTR_ERR(path->dentry);
++              path->dentry = NULL;
++              path->mnt = NULL;
++      }
++      return err;
++}
++
++static int __hash_lookup_topmost(struct nameidata *nd, struct qstr *name,
++                               struct path *path)
++{
++      struct path next;
++      int err;
++
++      err = lookup_hash(nd, name, path);
++      if (err)
++              return err;
++
++      if (path->dentry->d_inode || d_is_whiteout(path->dentry))
++              return 0;
++
++      if (IS_OPAQUE(nd->path.dentry->d_inode) && !d_is_fallthru(path->dentry))
++              return 0;
++
++      while (follow_union_down(&nd->path)) {
++              name->hash = full_name_hash(name->name, name->len);
++              if (nd->path.dentry->d_op && nd->path.dentry->d_op->d_hash) {
++                      err = nd->path.dentry->d_op->d_hash(nd->path.dentry,
++                                                          name);
++                      if (err < 0)
++                              goto out;
++              }
++
++              mutex_lock(&nd->path.dentry->d_inode->i_mutex);
++              err = lookup_hash(nd, name, &next);
++              mutex_unlock(&nd->path.dentry->d_inode->i_mutex);
++              if (err)
++                      goto out;
++
++              if (next.dentry->d_inode || d_is_whiteout(next.dentry)) {
++                      dput(path->dentry);
++                      mntget(next.mnt);
++                      *path = next;
++                      goto out;
++              }
++
++              if (IS_OPAQUE(nd->path.dentry->d_inode) && !d_is_fallthru(next.dentry))
++                      goto out;
++
++              dput(next.dentry);
++      }
++out:
++      if (err)
++              dput(path->dentry);
++      return err;
++}
++
++static int __hash_lookup_build_union(struct nameidata *nd, struct qstr *name,
++                                   struct path *path)
++{
++      struct path last = *path;
++      struct path next;
++      int err = 0;
++
++      while (follow_union_down(&nd->path)) {
++              /* We need to recompute the hash for lower layer lookups */
++              name->hash = full_name_hash(name->name, name->len);
++              if (nd->path.dentry->d_op && nd->path.dentry->d_op->d_hash) {
++                      err = nd->path.dentry->d_op->d_hash(nd->path.dentry,
++                                                          name);
++                      if (err < 0)
++                              goto out;
++              }
++
++              mutex_lock(&nd->path.dentry->d_inode->i_mutex);
++              err = lookup_hash(nd, name, &next);
++              mutex_unlock(&nd->path.dentry->d_inode->i_mutex);
++              if (err)
++                      goto out;
++
++              if (d_is_whiteout(next.dentry)) {
++                      dput(next.dentry);
++                      break;
++              }
++
++              if (!next.dentry->d_inode) {
++                      dput(next.dentry);
++                      continue;
++              }
++
++              /* only directories can be part of a union stack */
++              if (!S_ISDIR(next.dentry->d_inode->i_mode)) {
++                      dput(next.dentry);
++                      break;
++              }
++
++              /* now we know we found something "real" */
++              append_to_union(last.mnt, last.dentry, next.mnt, next.dentry);
++
++              if (last.dentry != path->dentry)
++                      path_put(&last);
++              last.dentry = next.dentry;
++              last.mnt = mntget(next.mnt);
++      }
++
++      if (last.dentry != path->dentry)
++              path_put(&last);
++out:
++      return err;
++}
++
++int hash_lookup_union(struct nameidata *nd, struct qstr *name,
++                           struct path *path)
++{
++      struct path safe = { .dentry = nd->path.dentry, .mnt = nd->path.mnt };
++      int res ;
++
++      path_get(&safe);
++      res = __hash_lookup_topmost(nd, name, path);
++      if (res)
++              goto out;
++
++      /* only directories can be part of a union stack */
++      if (!path->dentry->d_inode ||
++          !S_ISDIR(path->dentry->d_inode->i_mode))
++              goto out;
++
++      /* Build the union stack for this part */
++      res = __hash_lookup_build_union(nd, name, path);
++      if (res) {
++              dput(path->dentry);
++              if (path->mnt != safe.mnt)
++                      mntput(path->mnt);
++              goto out;
++      }
++
++out:
++      path_put(&nd->path);
++      nd->path.dentry = safe.dentry;
++      nd->path.mnt = safe.mnt;
++      return res;
++}
++
++/**
++ * do_union_hash_lookup() - walk down the union stack and lookup_hash()
++ * @nd: nameidata of parent to lookup from
++ * @name: pathname component to lookup
++ * @path: path to store result of lookup in
++ *
++ * Walk down the union stack and search for single pathname component name. It
++ * is assumed that the caller already did a lookup_hash() in the topmost parent
++ * that gave negative lookup result. Therefore this does call lookup_hash() in
++ * every lower layer (!) of the union stack. If a directory is found the union
++ * stack for that is assembled as well.
++ *
++ * Note:
++ * The caller needs to take care of holding a valid reference to the topmost
++ * parent.
++ * On error we leave @path untouched as well as when we don't find anything.
++ */
++static int do_union_hash_lookup(struct nameidata *nd, struct qstr *name,
++                              struct path *path)
++{
++      struct path next;
++      int err = 0;
++
++      while (follow_union_down(&nd->path)) {
++              /* rehash because of d_op->d_hash() by the previous layer */
++              name->hash = full_name_hash(name->name, name->len);
++
++              mutex_lock(&nd->path.dentry->d_inode->i_mutex);
++              err = lookup_hash(nd, name, &next);
++              mutex_unlock(&nd->path.dentry->d_inode->i_mutex);
++
++              if (err)
++                      break;
++
++              if (next.dentry->d_inode) {
++                      mntget(next.mnt);
++                      if (!S_ISDIR(next.dentry->d_inode->i_mode)) {
++                              *path = next;
++                              break;
++                      }
++                      err = __hash_lookup_build_union(nd, name, &next);
++                      if (err)
++                              path_put(&next);
++                      else
++                              *path = next;
++                      break;
++              }
++
++              path_put_conditional(&next, nd);
++
++              if ((IS_OPAQUE(nd->path.dentry->d_inode) &&
++                   !d_is_fallthru(next.dentry)) ||
++                  d_is_whiteout(next.dentry))
++                      break;
++      }
++
++      return err;
++}
++
++/**
++ * _hash_lookup_union() - lookup single pathname component
++ * @nd: nameidata of parent to lookup from
++ * @name: pathname component to lookup
++ * @path: path to store result of lookup in
++ *
++ * Returns the topmost parent locked and the target dentry found in the union
++ * or the topmost negative target dentry otherwise.
++ *
++ * Note:
++ * Returns topmost parent locked even on error.
++ */
++static int _hash_lookup_union(struct nameidata *nd, struct qstr *name,
++                            struct path *path)
++{
++      struct path parent = nd->path;
++      struct path topmost;
++      int err;
++
++      mutex_lock(&nd->path.dentry->d_inode->i_mutex);
++      err = lookup_hash(nd, name, path);
++      if (err)
++              return err;
++
++      /* return if we found something and it isn't a directory we are done */
++      if (path->dentry->d_inode && !S_ISDIR(path->dentry->d_inode->i_mode))
++              return 0;
++
++      /* stop lookup if the parent directory is marked opaque */
++      if ((IS_OPAQUE(nd->path.dentry->d_inode) &&
++           !d_is_fallthru(path->dentry)) ||
++          d_is_whiteout(path->dentry))
++              return 0;
++
++      if (!strcmp(path->mnt->mnt_sb->s_type->name, "proc") ||
++          !strcmp(path->mnt->mnt_sb->s_type->name, "sysfs"))
++              return 0;
++
++      mutex_unlock(&nd->path.dentry->d_inode->i_mutex);
++
++      /*
++       * safe a reference to the topmost parent for walking the union stack
++       */
++      path_get(&parent);
++      topmost = *path;
++
++      if (path->dentry->d_inode && S_ISDIR(path->dentry->d_inode->i_mode)) {
++              err = __hash_lookup_build_union(nd, name, path);
++              if (err)
++                      goto err_lock_parent;
++              goto out_lock_and_revalidate_parent;
++      }
++
++      err = do_union_hash_lookup(nd, name, path);
++      if (err)
++              goto err_lock_parent;
++
++out_lock_and_revalidate_parent:
++      /* seems that we haven't found anything, so return the topmost */
++      path_to_nameidata(&parent, nd);
++      mutex_lock(&nd->path.dentry->d_inode->i_mutex);
++
++      if (topmost.dentry == path->dentry) {
++              spin_lock(&path->dentry->d_lock);
++              if (nd->path.dentry != path->dentry->d_parent) {
++                      spin_unlock(&path->dentry->d_lock);
++                      dput(path->dentry);
++                      name->hash = full_name_hash(name->name, name->len);
++                      err = lookup_hash(nd, name, path);
++                      if (err)
++                              return err;
++                      /* FIXME: What if we find a directory here ... */
++                      return err;
++              }
++              spin_unlock(&path->dentry->d_lock);
++      } else
++              dput(topmost.dentry);
++
++      return 0;
++
++err_lock_parent:
++      path_to_nameidata(&parent, nd);
++      path_put_conditional(path, nd);
++      mutex_lock(&nd->path.dentry->d_inode->i_mutex);
++      return err;
++}
++
++/**
++ * lookup_rename_source() - lookup the source used by rename
++ *
++ * This is a special version of _hash_lookup_union() which becomes necessary
++ * for finding the source of a rename on union mounts.
++ *
++ * See comment for _hash_lookup_union() above.
++ */
++static int lookup_rename_source(struct nameidata *oldnd,
++                              struct nameidata *newnd,
++                              struct dentry **trap, struct qstr *name,
++                              struct path *old)
+ {
+-      struct dentry *dentry;
+-      struct inode *inode;
++      struct path parent = oldnd->path;
++      struct path topmost;
+       int err;
+ 
+-      inode = base->d_inode;
++      err = lookup_hash(oldnd, name, old);
++      if (err)
++              return err;
++
++      /* return if we found something and it isn't a directory we are done */
++      if (old->dentry->d_inode && !S_ISDIR(old->dentry->d_inode->i_mode))
++              return 0;
++
++      /* stop lookup if the parent directory is marked opaque */
++      if ((IS_OPAQUE(oldnd->path.dentry->d_inode) &&
++           !d_is_fallthru(old->dentry)) ||
++          d_is_whiteout(old->dentry))
++              return 0;
++
++      if (!strcmp(old->mnt->mnt_sb->s_type->name, "proc") ||
++          !strcmp(old->mnt->mnt_sb->s_type->name, "sysfs"))
++              return 0;
++
++      unlock_rename(oldnd->path.dentry, newnd->path.dentry);
+ 
+       /*
+-       * See if the low-level filesystem might want
+-       * to use its own hash..
++       * safe a reference to the topmost parent for walking the union stack
+        */
+-      if (base->d_op && base->d_op->d_hash) {
+-              err = base->d_op->d_hash(base, name);
+-              dentry = ERR_PTR(err);
+-              if (err < 0)
+-                      goto out;
++      path_get(&parent);
++      topmost = *old;
++
++      if (old->dentry->d_inode && S_ISDIR(old->dentry->d_inode->i_mode)) {
++              err = __hash_lookup_build_union(oldnd, name, old);
++              if (err)
++                      goto err_lock;
++              goto out_lock_and_revalidate_parent;
+       }
+ 
+-      dentry = cached_lookup(base, name, nd);
+-      if (!dentry) {
+-              struct dentry *new;
++      err = do_union_hash_lookup(oldnd, name, old);
++      if (err)
++              goto err_lock;
+ 
+-              /* Don't create child dentry for a dead directory. */
+-              dentry = ERR_PTR(-ENOENT);
+-              if (IS_DEADDIR(inode))
+-                      goto out;
++out_lock_and_revalidate_parent:
++      path_to_nameidata(&parent, oldnd);
++      *trap = lock_rename(oldnd->path.dentry, newnd->path.dentry);
+ 
+-              new = d_alloc(base, name);
+-              dentry = ERR_PTR(-ENOMEM);
+-              if (!new)
+-                      goto out;
+-              dentry = inode->i_op->lookup(inode, new, nd);
+-              if (!dentry)
+-                      dentry = new;
+-              else
+-                      dput(new);
+-      }
+-out:
+-      return dentry;
+-}
++      /*
++       * If we return the topmost dentry we have to make sure that it has not
++       * been moved away while we gave up the topmost parents i_mutex lock.
++       */
++      if (topmost.dentry == old->dentry) {
++              spin_lock(&old->dentry->d_lock);
++              if (oldnd->path.dentry != old->dentry->d_parent) {
++                      spin_unlock(&old->dentry->d_lock);
++                      dput(old->dentry);
++                      name->hash = full_name_hash(name->name, name->len);
++                      err = lookup_hash(oldnd, name, old);
++                      if (err)
++                              return err;
++                      /* FIXME: What if we find a directory here ... */
++                      return err;
++              }
++              spin_unlock(&old->dentry->d_lock);
++      } else
++              dput(topmost.dentry);
+ 
+-/*
+- * Restricted form of lookup. Doesn't follow links, single-component only,
+- * needs parent already locked. Doesn't follow mounts.
+- * SMP-safe.
+- */
+-static struct dentry *lookup_hash(struct nameidata *nd)
+-{
+-      int err;
++      return 0;
+ 
+-      err = inode_permission(nd->path.dentry->d_inode, MAY_EXEC);
+-      if (err)
+-              return ERR_PTR(err);
+-      return __lookup_hash(&nd->last, nd->path.dentry, nd);
++err_lock:
++      path_to_nameidata(&parent, oldnd);
++      path_put_conditional(old, oldnd);
++      *trap = lock_rename(oldnd->path.dentry, newnd->path.dentry);
++      return err;
+ }
+ 
+ static int __lookup_one_len(const char *name, struct qstr *this,
+@@ -1502,8 +2335,9 @@ int vfs_create(struct inode *dir, struct
+       return error;
+ }
+ 
+-int may_open(struct path *path, int acc_mode, int flag)
++int may_open(struct nameidata *nd, int acc_mode, int flag)
+ {
++      struct path *path = &nd->path;
+       struct dentry *dentry = path->dentry;
+       struct inode *inode = dentry->d_inode;
+       int error;
+@@ -1529,7 +2363,7 @@ int may_open(struct path *path, int acc_
+               break;
+       }
+ 
+-      error = inode_permission(inode, acc_mode);
++      error = union_permission(path, acc_mode);
+       if (error)
+               return error;
+ 
+@@ -1577,6 +2411,9 @@ int may_open(struct path *path, int acc_
+               if (!error)
+                       error = security_path_truncate(path, 0,
+                                              ATTR_MTIME|ATTR_CTIME|ATTR_OPEN);
++              /* XXX don't copy up file data */
++              if (is_unionized(path->dentry, path->mnt))
++                      error = union_copyup(nd, flag /* XXX not used */);
+               if (!error) {
+                       vfs_dq_init(inode);
+ 
+@@ -1623,7 +2460,7 @@ out_unlock:
+       if (error)
+               return error;
+       /* Don't check for write permission, don't truncate */
+-      return may_open(&nd->path, 0, flag & ~O_TRUNC);
++      return may_open(nd, 0, flag & ~O_TRUNC);
+ }
+ 
+ /*
+@@ -1738,12 +2575,10 @@ struct file *do_filp_open(int dfd, const
+       if (flag & O_EXCL)
+               nd.flags |= LOOKUP_EXCL;
+       mutex_lock(&dir->d_inode->i_mutex);
+-      path.dentry = lookup_hash(&nd);
+-      path.mnt = nd.path.mnt;
++      error = hash_lookup_union(&nd, &nd.last, &path);
+ 
+ do_last:
+-      error = PTR_ERR(path.dentry);
+-      if (IS_ERR(path.dentry)) {
++      if (error) {
+               mutex_unlock(&dir->d_inode->i_mutex);
+               goto exit;
+       }
+@@ -1803,10 +2638,23 @@ do_last:
+       if (path.dentry->d_inode->i_op->follow_link)
+               goto do_link;
+ 
+-      path_to_nameidata(&path, &nd);
+       error = -EISDIR;
+       if (path.dentry->d_inode && S_ISDIR(path.dentry->d_inode->i_mode))
+-              goto exit;
++              goto exit_dput;
++
++      /*
++       * If this file is on a lower layer of the union stack, copy it to the
++       * topmost layer before opening it
++       */
++      if (path.dentry->d_inode &&
++          (path.dentry->d_parent != dir) &&
++          S_ISREG(path.dentry->d_inode->i_mode)) {
++              error = __union_copyup(&path, &nd, &path);
++              if (error)
++                      goto exit_dput;
++      }
++
++      path_to_nameidata(&path, &nd);
+ ok:
+       /*
+        * Consider:
+@@ -1824,12 +2672,18 @@ ok:
+               if (error)
+                       goto exit;
+       }
+-      error = may_open(&nd.path, acc_mode, flag);
++      error = may_open(&nd, acc_mode, flag);
+       if (error) {
+               if (will_write)
+                       mnt_drop_write(nd.path.mnt);
+               goto exit;
+       }
++      /* Okay, all permissions go, now copy up */
++      if (!(flag & O_CREAT) && (flag & FMODE_WRITE)) {
++              error = union_copyup(&nd, flag /* XXX not used */);
++              if (error)
++                      goto exit;
++      }
+       filp = nameidata_to_filp(&nd, open_flag);
+       if (IS_ERR(filp))
+               ima_counts_put(&nd.path,
+@@ -1904,8 +2758,7 @@ do_link:
+       }
+       dir = nd.path.dentry;
+       mutex_lock(&dir->d_inode->i_mutex);
+-      path.dentry = lookup_hash(&nd);
+-      path.mnt = nd.path.mnt;
++      error = hash_lookup_union(&nd, &nd.last, &path);
+       __putname(nd.last.name);
+       goto do_last;
+ }
+@@ -1939,7 +2792,8 @@ EXPORT_SYMBOL(filp_open);
+  */
+ struct dentry *lookup_create(struct nameidata *nd, int is_dir)
+ {
+-      struct dentry *dentry = ERR_PTR(-EEXIST);
++      struct path path = { .dentry = ERR_PTR(-EEXIST) } ;
++      int err;
+ 
+       mutex_lock_nested(&nd->path.dentry->d_inode->i_mutex, I_MUTEX_PARENT);
+       /*
+@@ -1955,11 +2809,13 @@ struct dentry *lookup_create(struct name
+       /*
+        * Do the final lookup.
+        */
+-      dentry = lookup_hash(nd);
+-      if (IS_ERR(dentry))
++      err = hash_lookup_union(nd, &nd->last, &path);
++      if (err) {
++              path.dentry = ERR_PTR(err);
+               goto fail;
++      }
+ 
+-      if (dentry->d_inode)
++      if (path.dentry->d_inode)
+               goto eexist;
+       /*
+        * Special case - lookup gave negative, but... we had foo/bar/
+@@ -1968,15 +2824,17 @@ struct dentry *lookup_create(struct name
+        * been asking for (non-existent) directory. -ENOENT for you.
+        */
+       if (unlikely(!is_dir && nd->last.name[nd->last.len])) {
+-              dput(dentry);
+-              dentry = ERR_PTR(-ENOENT);
++              path_put_conditional(&path, nd);
++              path.dentry = ERR_PTR(-ENOENT);
+       }
+-      return dentry;
++      if (nd->path.mnt != path.mnt)
++              mntput(path.mnt);
++      return path.dentry;
+ eexist:
+-      dput(dentry);
+-      dentry = ERR_PTR(-EEXIST);
++      path_put_conditional(&path, nd);
++      path.dentry = ERR_PTR(-EEXIST);
+ fail:
+-      return dentry;
++      return path.dentry;
+ }
+ EXPORT_SYMBOL_GPL(lookup_create);
+ 
+@@ -2088,6 +2946,7 @@ SYSCALL_DEFINE3(mknod, const char __user
+ int vfs_mkdir(struct inode *dir, struct dentry *dentry, int mode)
+ {
+       int error = may_create(dir, dentry);
++      int opaque = 0;
+ 
+       if (error)
+               return error;
+@@ -2101,9 +2960,18 @@ int vfs_mkdir(struct inode *dir, struct 
+               return error;
+ 
+       vfs_dq_init(dir);
++
++      if (d_is_whiteout(dentry))
++              opaque = 1;
++
+       error = dir->i_op->mkdir(dir, dentry, mode);
+-      if (!error)
++      if (!error) {
+               fsnotify_mkdir(dir, dentry);
++              if (opaque) {
++                      dentry->d_inode->i_flags |= S_OPAQUE;
++                      mark_inode_dirty(dentry->d_inode);
++              }
++      }
+       return error;
+ }
+ 
+@@ -2149,6 +3017,212 @@ SYSCALL_DEFINE2(mkdir, const char __user
+       return sys_mkdirat(AT_FDCWD, pathname, mode);
+ }
+ 
++
++/* Checks on the victim for whiteout */
++static inline int may_whiteout(struct inode *dir, struct dentry *victim,
++                             int isdir)
++{
++      int err;
++
++      /* from may_create() */
++      if (IS_DEADDIR(dir))
++              return -ENOENT;
++      err = inode_permission(dir, MAY_WRITE | MAY_EXEC);
++      if (err)
++              return err;
++
++      /* from may_delete() */
++      if (IS_APPEND(dir))
++              return -EPERM;
++      if (!victim->d_inode)
++              return 0;
++      if (check_sticky(dir, victim->d_inode) ||
++          IS_APPEND(victim->d_inode) ||
++          IS_IMMUTABLE(victim->d_inode))
++              return -EPERM;
++      if (isdir) {
++              if (!S_ISDIR(victim->d_inode->i_mode))
++                      return -ENOTDIR;
++              if (IS_ROOT(victim))
++                      return -EBUSY;
++      } else if (S_ISDIR(victim->d_inode->i_mode))
++              return -EISDIR;
++      if (victim->d_flags & DCACHE_NFSFS_RENAMED)
++              return -EBUSY;
++      return 0;
++}
++
++/**
++ * vfs_whiteout: creates a white-out for the given directory entry
++ * @dir: parent inode
++ * @dentry: directory entry to white-out
++ *
++ * Simply white-out a given directory entry. This functionality is usually used
++ * in the sense of unlink. Therefore the given dentry can still be in-use and
++ * contains an in-use inode. The filesystem has to do what unlink or rmdir
++ * would in that case. Since the dentry still might be in-use we have to
++ * provide a fresh unhashed dentry that whiteout can fill the new inode into.
++ * In that case the given dentry is dropped and the fresh dentry containing the
++ * whiteout is rehashed instead. If the given dentry is unused, the whiteout
++ * inode is instantiated into it instead.
++ *
++ * After this returns with success, don't make any assumptions about the inode.
++ * Just dput() it dentry.
++ */
++static int vfs_whiteout(struct inode *dir, struct dentry *dentry, int isdir)
++{
++      int err;
++      struct inode *old_inode = dentry->d_inode;
++      struct dentry *parent, *whiteout;
++
++      err = may_whiteout(dir, dentry, isdir);
++      if (err)
++              return err;
++
++      BUG_ON(dentry->d_parent->d_inode != dir);
++
++      if (!dir->i_op || !dir->i_op->whiteout)
++              return -EOPNOTSUPP;
++
++      if (old_inode) {
++              vfs_dq_init(dir);
++
++              mutex_lock(&old_inode->i_mutex);
++              if (isdir)
++                      dentry_unhash(dentry);
++              if (d_mountpoint(dentry))
++                      err = -EBUSY;
++              else {
++                      if (isdir)
++                              err = security_inode_rmdir(dir, dentry);
++                      else
++                              err = security_inode_unlink(dir, dentry);
++              }
++      }
++
++      parent = dget_parent(dentry);
++      whiteout = d_alloc_name(parent, dentry->d_name.name);
++
++      if (!err)
++              err = dir->i_op->whiteout(dir, dentry, whiteout);
++
++      if (old_inode) {
++              mutex_unlock(&old_inode->i_mutex);
++              if (!err) {
++                      fsnotify_link_count(old_inode);
++                      d_delete(dentry);
++              }
++              if (isdir)
++                      dput(dentry);
++      }
++
++      dput(whiteout);
++      dput(parent);
++      return err;
++}
++
++int path_whiteout(struct path *dir_path, struct dentry *dentry, int isdir)
++{
++      int error = mnt_want_write(dir_path->mnt);
++
++      if (!error) {
++              error = vfs_whiteout(dir_path->dentry->d_inode, dentry, isdir);
++              mnt_drop_write(dir_path->mnt);
++      }
++
++      return error;
++}
++EXPORT_SYMBOL(path_whiteout);
++
++/*
++ * This is abusing readdir to check if a union directory is logically empty.
++ * Al Viro barfed when he saw this, but Val said: "Well, at this point I'm
++ * aiming for working, pretty can come later"
++ */
++static int filldir_is_empty(void *__buf, const char *name, int namlen,
++                          loff_t offset, u64 ino, unsigned int d_type)
++{
++      int *is_empty = (int *)__buf;
++
++      switch (namlen) {
++      case 2:
++              if (name[1] != '.')
++                      break;
++      case 1:
++              if (name[0] != '.')
++                      break;
++              return 0;
++      }
++
++      if (d_type == DT_WHT)
++              return 0;
++
++      (*is_empty) = 0;
++      return 0;
++}
++
++static int directory_is_empty(struct dentry *dentry, struct vfsmount *mnt)
++{
++      struct file *file;
++      int err;
++      int is_empty = 1;
++
++      BUG_ON(!S_ISDIR(dentry->d_inode->i_mode));
++
++      /* references for the file pointer */
++      dget(dentry);
++      mntget(mnt);
++
++      file = dentry_open(dentry, mnt, O_RDONLY, current_cred());
++      if (IS_ERR(file))
++              return 0;
++
++      err = vfs_readdir(file, filldir_is_empty, &is_empty);
++
++      fput(file);
++      return is_empty;
++}
++
++static int do_whiteout(struct nameidata *nd, struct path *path, int isdir)
++{
++      struct path safe = { .dentry = dget(nd->path.dentry),
++                           .mnt = mntget(nd->path.mnt) };
++      struct dentry *dentry = path->dentry;
++      int err;
++
++      err = may_whiteout(nd->path.dentry->d_inode, dentry, isdir);
++      if (err)
++              goto out;
++
++      err = -ENOENT;
++      if (!dentry->d_inode)
++              goto out;
++
++      err = -ENOTEMPTY;
++      if (isdir && !directory_is_empty(path->dentry, path->mnt))
++              goto out;
++
++      if (nd->path.dentry != dentry->d_parent) {
++              dentry = __lookup_hash(&path->dentry->d_name, nd->path.dentry,
++                                     nd);
++              err = PTR_ERR(dentry);
++              if (IS_ERR(dentry))
++                      goto out;
++
++              dput(path->dentry);
++              if (path->mnt != safe.mnt)
++                      mntput(path->mnt);
++              path->mnt = nd->path.mnt;
++              path->dentry = dentry;
++      }
++
++      err = vfs_whiteout(nd->path.dentry->d_inode, dentry, isdir);
++
++out:
++      path_put(&safe);
++      return err;
++}
++
+ /*
+  * We try to drop the dentry early: we should have
+  * a usage count of 2 if we're the only user of this
+@@ -2213,7 +3287,7 @@ static long do_rmdir(int dfd, const char
+ {
+       int error = 0;
+       char * name;
+-      struct dentry *dentry;
++      struct path path;
+       struct nameidata nd;
+ 
+       error = user_path_parent(dfd, pathname, &nd, &name);
+@@ -2235,21 +3309,24 @@ static long do_rmdir(int dfd, const char
+       nd.flags &= ~LOOKUP_PARENT;
+ 
+       mutex_lock_nested(&nd.path.dentry->d_inode->i_mutex, I_MUTEX_PARENT);
+-      dentry = lookup_hash(&nd);
+-      error = PTR_ERR(dentry);
+-      if (IS_ERR(dentry))
++      error = hash_lookup_union(&nd, &nd.last, &path);
++      if (error)
+               goto exit2;
++      if (is_unionized(nd.path.dentry, nd.path.mnt)) {
++              error = do_whiteout(&nd, &path, 1);
++              goto exit3;
++      }
+       error = mnt_want_write(nd.path.mnt);
+       if (error)
+               goto exit3;
+-      error = security_path_rmdir(&nd.path, dentry);
++      error = security_path_rmdir(&nd.path, path.dentry);
+       if (error)
+               goto exit4;
+-      error = vfs_rmdir(nd.path.dentry->d_inode, dentry);
++      error = vfs_rmdir(nd.path.dentry->d_inode, path.dentry);
+ exit4:
+       mnt_drop_write(nd.path.mnt);
+ exit3:
+-      dput(dentry);
++      path_put_conditional(&path, &nd);
+ exit2:
+       mutex_unlock(&nd.path.dentry->d_inode->i_mutex);
+ exit1:
+@@ -2304,7 +3381,7 @@ static long do_unlinkat(int dfd, const c
+ {
+       int error;
+       char *name;
+-      struct dentry *dentry;
++      struct path path;
+       struct nameidata nd;
+       struct inode *inode = NULL;
+ 
+@@ -2319,26 +3396,29 @@ static long do_unlinkat(int dfd, const c
+       nd.flags &= ~LOOKUP_PARENT;
+ 
+       mutex_lock_nested(&nd.path.dentry->d_inode->i_mutex, I_MUTEX_PARENT);
+-      dentry = lookup_hash(&nd);
+-      error = PTR_ERR(dentry);
+-      if (!IS_ERR(dentry)) {
++      error = hash_lookup_union(&nd, &nd.last, &path);
++      if (!error) {
+               /* Why not before? Because we want correct error value */
+               if (nd.last.name[nd.last.len])
+                       goto slashes;
+-              inode = dentry->d_inode;
++              inode = path.dentry->d_inode;
+               if (inode)
+                       atomic_inc(&inode->i_count);
++              if (is_unionized(nd.path.dentry, nd.path.mnt)) {
++                      error = do_whiteout(&nd, &path, 0);
++                      goto exit2;
++              }
+               error = mnt_want_write(nd.path.mnt);
+               if (error)
+                       goto exit2;
+-              error = security_path_unlink(&nd.path, dentry);
++              error = security_path_unlink(&nd.path, path.dentry);
+               if (error)
+                       goto exit3;
+-              error = vfs_unlink(nd.path.dentry->d_inode, dentry);
++              error = vfs_unlink(nd.path.dentry->d_inode, path.dentry);
+ exit3:
+               mnt_drop_write(nd.path.mnt);
+       exit2:
+-              dput(dentry);
++              path_put_conditional(&path, &nd);
+       }
+       mutex_unlock(&nd.path.dentry->d_inode->i_mutex);
+       if (inode)
+@@ -2349,8 +3429,8 @@ exit1:
+       return error;
+ 
+ slashes:
+-      error = !dentry->d_inode ? -ENOENT :
+-              S_ISDIR(dentry->d_inode->i_mode) ? -EISDIR : -ENOTDIR;
++      error = !path.dentry->d_inode ? -ENOENT :
++              S_ISDIR(path.dentry->d_inode->i_mode) ? -EISDIR : -ENOTDIR;
+       goto exit2;
+ }
+ 
+@@ -2686,11 +3766,96 @@ int vfs_rename(struct inode *old_dir, st
+       return error;
+ }
+ 
++static int vfs_rename_union(struct nameidata *oldnd, struct path *old,
++                          struct nameidata *newnd, struct path *new)
++{
++      struct inode *old_dir = oldnd->path.dentry->d_inode;
++      struct inode *new_dir = newnd->path.dentry->d_inode;
++      struct qstr old_name;
++      char *name;
++      struct dentry *dentry;
++      int error;
++
++      if (old->dentry->d_inode == new->dentry->d_inode)
++              return 0;
++      error = may_whiteout(old_dir, old->dentry, 0);
++      if (error)
++              return error;
++      if (!old_dir->i_op || !old_dir->i_op->whiteout)
++              return -EPERM;
++
++      if (!new->dentry->d_inode)
++              error = may_create(new_dir, new->dentry);
++      else
++              error = may_delete(new_dir, new->dentry, 0);
++      if (error)
++              return error;
++
++      vfs_dq_init(old_dir);
++      vfs_dq_init(new_dir);
++
++      error = -EBUSY;
++      if (d_mountpoint(old->dentry) || d_mountpoint(new->dentry))
++              return error;
++
++      error = -ENOMEM;
++      name = kmalloc(old->dentry->d_name.len, GFP_KERNEL);
++      if (!name)
++              return error;
++      strncpy(name, old->dentry->d_name.name, old->dentry->d_name.len);
++      name[old->dentry->d_name.len] = 0;
++      old_name.len = old->dentry->d_name.len;
++      old_name.hash = old->dentry->d_name.hash;
++      old_name.name = name;
++
++      /* possibly delete the existing new file */
++      if ((newnd->path.dentry == new->dentry->d_parent) &&
++          new->dentry->d_inode) {
++              /* FIXME: inode may be truncated while we hold a lock */
++              error = vfs_unlink(new_dir, new->dentry);
++              if (error)
++                      goto freename;
++
++              dentry = __lookup_hash(&new->dentry->d_name,
++                                     newnd->path.dentry, newnd);
++              if (IS_ERR(dentry))
++                      goto freename;
++
++              dput(new->dentry);
++              new->dentry = dentry;
++      }
++
++      /* copyup to the new file */
++      error = __union_copyup(old, newnd, new);
++      if (error)
++              goto freename;
++
++      /* whiteout the old file */
++      dentry = __lookup_hash(&old_name, oldnd->path.dentry, oldnd);
++      error = PTR_ERR(dentry);
++      if (IS_ERR(dentry))
++              goto freename;
++      error = vfs_whiteout(old_dir, dentry, 0);
++      dput(dentry);
++
++      /* FIXME: This is acutally unlink() && create() ... */
++/*
++  if (!error) {
++  const char *new_name = old_dentry->d_name.name;
++  fsnotify_move(old_dir, new_dir, old_name.name, new_name, 0,
++  new_dentry->d_inode, old_dentry->d_inode);
++  }
++*/
++freename:
++      kfree(old_name.name);
++      return error;
++}
++
+ SYSCALL_DEFINE4(renameat, int, olddfd, const char __user *, oldname,
+               int, newdfd, const char __user *, newname)
+ {
+       struct dentry *old_dir, *new_dir;
+-      struct dentry *old_dentry, *new_dentry;
++      struct path old, new;
+       struct dentry *trap;
+       struct nameidata oldnd, newnd;
+       char *from;
+@@ -2724,16 +3889,28 @@ SYSCALL_DEFINE4(renameat, int, olddfd, c
+ 
+       trap = lock_rename(new_dir, old_dir);
+ 
+-      old_dentry = lookup_hash(&oldnd);
+-      error = PTR_ERR(old_dentry);
+-      if (IS_ERR(old_dentry))
++      /*
++       * For union mounts we need to call a giant lookup_rename_source()
++       * instead.
++       * First lock_rename() and look on the topmost fs like you would do in
++       * the normal rename, if you find something which is not a directory,
++       * go ahead and lookup target and do normal rename.
++       * If you find a negative dentry, unlock_rename() and continue as
++       * _hash_lookup_union() would do without locking the topmost parent
++       * at the end. After that do lock_rename() of the source parent and the
++       * target parent and do a copyup with additional whiteout creation at
++       * the end.
++       */
++//    error = hash_lookup_union(&oldnd, &oldnd.last, &old);
++      error = lookup_rename_source(&oldnd, &newnd, &trap, &oldnd.last, &old);
++      if (error)
+               goto exit3;
+       /* source must exist */
+       error = -ENOENT;
+-      if (!old_dentry->d_inode)
++      if (!old.dentry->d_inode)
+               goto exit4;
+       /* unless the source is a directory trailing slashes give -ENOTDIR */
+-      if (!S_ISDIR(old_dentry->d_inode->i_mode)) {
++      if (!S_ISDIR(old.dentry->d_inode->i_mode)) {
+               error = -ENOTDIR;
+               if (oldnd.last.name[oldnd.last.len])
+                       goto exit4;
+@@ -2742,32 +3919,44 @@ SYSCALL_DEFINE4(renameat, int, olddfd, c
+       }
+       /* source should not be ancestor of target */
+       error = -EINVAL;
+-      if (old_dentry == trap)
++      if (old.dentry == trap)
+               goto exit4;
+-      new_dentry = lookup_hash(&newnd);
+-      error = PTR_ERR(new_dentry);
+-      if (IS_ERR(new_dentry))
++      /* target is always on topmost fs, even with unions */
++      error = lookup_hash(&newnd, &newnd.last, &new);
++      if (error)
+               goto exit4;
+       /* target should not be an ancestor of source */
+       error = -ENOTEMPTY;
+-      if (new_dentry == trap)
++      if (new.dentry == trap)
++              goto exit5;
++      /* renaming of directories on unions is done by the user-space */
++      error = -EXDEV;
++      if (is_unionized(oldnd.path.dentry, oldnd.path.mnt) &&
++          S_ISDIR(old.dentry->d_inode->i_mode))
+               goto exit5;
++//    if (is_unionized(newnd.path.dentry, newnd.path.mnt))
++//            goto exit5;
+ 
+       error = mnt_want_write(oldnd.path.mnt);
+       if (error)
+               goto exit5;
+-      error = security_path_rename(&oldnd.path, old_dentry,
+-                                   &newnd.path, new_dentry);
++      error = security_path_rename(&oldnd.path, old.dentry,
++                                   &newnd.path, new.dentry);
+       if (error)
+               goto exit6;
+-      error = vfs_rename(old_dir->d_inode, old_dentry,
+-                                 new_dir->d_inode, new_dentry);
++      if (is_unionized(oldnd.path.dentry, oldnd.path.mnt) &&
++          (old.dentry->d_parent != oldnd.path.dentry)) {
++              error = vfs_rename_union(&oldnd, &old, &newnd, &new);
++              goto exit6;
++      }
++      error = vfs_rename(old_dir->d_inode, old.dentry,
++                                 new_dir->d_inode, new.dentry);
+ exit6:
+       mnt_drop_write(oldnd.path.mnt);
+ exit5:
+-      dput(new_dentry);
++      path_put_conditional(&new, &newnd);
+ exit4:
+-      dput(old_dentry);
++      path_put_conditional(&old, &oldnd);
+ exit3:
+       unlock_rename(new_dir, old_dir);
+ exit2:
+--- a/fs/namespace.c
++++ b/fs/namespace.c
+@@ -29,6 +29,7 @@
+ #include <linux/log2.h>
+ #include <linux/idr.h>
+ #include <linux/fs_struct.h>
++#include <linux/union.h>
+ #include <asm/uaccess.h>
+ #include <asm/unistd.h>
+ #include "pnode.h"
+@@ -150,6 +151,9 @@ struct vfsmount *alloc_vfsmnt(const char
+               INIT_LIST_HEAD(&mnt->mnt_share);
+               INIT_LIST_HEAD(&mnt->mnt_slave_list);
+               INIT_LIST_HEAD(&mnt->mnt_slave);
++#ifdef CONFIG_UNION_MOUNT
++              INIT_LIST_HEAD(&mnt->mnt_unions);
++#endif
+ #ifdef CONFIG_SMP
+               mnt->mnt_writers = alloc_percpu(int);
+               if (!mnt->mnt_writers)
+@@ -469,6 +473,7 @@ static void __touch_mnt_namespace(struct
+ 
+ static void detach_mnt(struct vfsmount *mnt, struct path *old_path)
+ {
++      detach_mnt_union(mnt);
+       old_path->dentry = mnt->mnt_mountpoint;
+       old_path->mnt = mnt->mnt_parent;
+       mnt->mnt_parent = mnt;
+@@ -492,6 +497,7 @@ static void attach_mnt(struct vfsmount *
+       list_add_tail(&mnt->mnt_hash, mount_hashtable +
+                       hash(path->mnt, path->dentry));
+       list_add_tail(&mnt->mnt_child, &path->mnt->mnt_mounts);
++      attach_mnt_union(mnt, path->mnt, path->dentry);
+ }
+ 
+ /*
+@@ -514,6 +520,7 @@ static void commit_tree(struct vfsmount 
+       list_add_tail(&mnt->mnt_hash, mount_hashtable +
+                               hash(parent, mnt->mnt_mountpoint));
+       list_add_tail(&mnt->mnt_child, &parent->mnt_mounts);
++      attach_mnt_union(mnt, mnt->mnt_parent, mnt->mnt_mountpoint);
+       touch_mnt_namespace(n);
+ }
+ 
+@@ -770,6 +777,7 @@ static void show_mnt_opts(struct seq_fil
+               { MNT_NODIRATIME, ",nodiratime" },
+               { MNT_RELATIME, ",relatime" },
+               { MNT_STRICTATIME, ",strictatime" },
++              { MNT_UNION, ",union" },
+               { 0, NULL }
+       };
+       const struct proc_fs_info *fs_infop;
+@@ -984,6 +992,7 @@ void release_mounts(struct list_head *he
+                       struct dentry *dentry;
+                       struct vfsmount *m;
+                       spin_lock(&vfsmount_lock);
++                      detach_mnt_union(mnt);
+                       dentry = mnt->mnt_mountpoint;
+                       m = mnt->mnt_parent;
+                       mnt->mnt_mountpoint = mnt->mnt_root;
+@@ -1102,6 +1111,11 @@ static int do_umount(struct vfsmount *mn
+       spin_unlock(&vfsmount_lock);
+       if (retval)
+               security_sb_umount_busy(mnt);
++      /* If this was a union mount, we are no longer a read-only
++       * user on the underlying mount */
++      if (mnt->mnt_flags & MNT_UNION)
++              mnt->mnt_parent->mnt_sb->s_readonly_users--;
++
+       up_write(&namespace_sem);
+       release_mounts(&umount_list);
+       return retval;
+@@ -1426,6 +1440,10 @@ static int do_change_type(struct path *p
+       if (path->dentry != path->mnt->mnt_root)
+               return -EINVAL;
+ 
++      /* Don't change the type of union mounts */
++      if (IS_MNT_UNION(path->mnt))
++              return -EINVAL;
++
+       down_write(&namespace_sem);
+       if (type == MS_SHARED) {
+               err = invent_group_ids(mnt, recurse);
+@@ -1444,10 +1462,65 @@ static int do_change_type(struct path *p
+ }
+ 
+ /*
++ * Mount-time check of upper and lower layer file systems to see if we
++ * can union mount one on the other.
++ *
++ * Union mounts must follow these rules:
++ *
++ * - The lower layer must be read-only.  This avoids lots of nasty
++ *   unsolvable races where file system structures disappear suddenly.
++ *   XXX - Checking the vfsmnt for read-only is a temporary hack; the
++ *   file system could be mounted read-write elsewhere.  We need to
++ *   enforce read-only at the superblock level (patches coming).
++ *
++ * - The upper layer must be writable.  This isn't an absolute
++ *   requirement; right now we need it to make readdir() work since we
++ *   copy up directory entries to the top level.  A possible
++ *   workaround is to mount a tmpfs file system transparently over the
++ *   top.
++ *
++ * - The upper layer must support whiteouts and fallthrus (if it is
++ *   writeable).
++ *
++ * - The lower layer must not also be a union mount.  This is just to
++ *   make life simpler for now, there is no inherent limitation on the
++ *   number of layers.
++ *
++ * XXX - Check other mount flags for incompatibilities - I'm sure
++ * there are some.
++ */
++
++static int
++check_union_mnt(struct path *mntpnt, struct vfsmount *top_mnt, int mnt_flags)
++{
++      struct vfsmount *lower_mnt = mntpnt->mnt;
++
++      /* Is this even a union mount? */
++      if (!(mnt_flags & MNT_UNION))
++              return 0;
++
++      /* Lower layer must be read-only and not a union mount */
++      if (!(lower_mnt->mnt_sb->s_flags & MS_RDONLY) ||
++          (lower_mnt->mnt_flags & MNT_UNION))
++              return -EBUSY;
++
++      /* Upper layer must be writable */
++      if (mnt_flags & MNT_READONLY)
++              return -EROFS;
++
++      /* Upper layer must support whiteouts and fallthrus */
++      if (!(top_mnt->mnt_sb->s_flags & MS_WHITEOUT))
++              return -EINVAL;
++
++      /* All good! */
++      return 0;
++}
++
++/*
+  * do loopback mount.
+  */
+-static int do_loopback(struct path *path, char *old_name,
+-                              int recurse)
++static int do_loopback(struct path *path, char *old_name, int recurse,
++                     int mnt_flags)
+ {
+       struct path old_path;
+       struct vfsmount *mnt = NULL;
+@@ -1477,6 +1550,13 @@ static int do_loopback(struct path *path
+       if (!mnt)
+               goto out;
+ 
++      err = check_union_mnt(&old_path, mnt, mnt_flags);
++      if (err)
++              goto out;
++
++      if (mnt_flags & MNT_UNION)
++              mnt->mnt_flags |= MNT_UNION;
++
+       err = graft_tree(mnt, path);
+       if (err) {
+               LIST_HEAD(umount_list);
+@@ -1486,6 +1566,10 @@ static int do_loopback(struct path *path
+               release_mounts(&umount_list);
+       }
+ 
++      /* If this is a union mount, add ourselves to the readonly users */
++      if (mnt_flags & MNT_UNION)
++              mnt->mnt_parent->mnt_sb->s_readonly_users++;
++
+ out:
+       up_write(&namespace_sem);
+       path_put(&old_path);
+@@ -1570,6 +1654,13 @@ static int do_move_mount(struct path *pa
+       if (err)
+               return err;
+ 
++      /* moving to or from a union mount is not supported */
++      err = -EINVAL;
++      if (IS_MNT_UNION(path->mnt))
++              goto exit;
++      if (IS_MNT_UNION(old_path.mnt))
++              goto exit;
++
+       down_write(&namespace_sem);
+       while (d_mountpoint(path->dentry) &&
+              follow_down(path))
+@@ -1627,6 +1718,7 @@ out:
+       up_write(&namespace_sem);
+       if (!err)
+               path_put(&parent_path);
++exit:
+       path_put(&old_path);
+       return err;
+ }
+@@ -1684,10 +1776,18 @@ int do_add_mount(struct vfsmount *newmnt
+       if (S_ISLNK(newmnt->mnt_root->d_inode->i_mode))
+               goto unlock;
+ 
++      err = check_union_mnt(path, newmnt, mnt_flags);
++      if (err)
++              goto unlock;
++
+       newmnt->mnt_flags = mnt_flags;
+       if ((err = graft_tree(newmnt, path)))
+               goto unlock;
+ 
++      /* If this is a union mount, add ourselves to the readonly users */
++      if (mnt_flags & MNT_UNION)
++              newmnt->mnt_parent->mnt_sb->s_readonly_users++;
++
+       if (fslist) /* add to the specified expiration list */
+               list_add_tail(&newmnt->mnt_expire, fslist);
+ 
+@@ -1940,10 +2040,12 @@ long do_mount(char *dev_name, char *dir_
+               mnt_flags &= ~(MNT_RELATIME | MNT_NOATIME);
+       if (flags & MS_RDONLY)
+               mnt_flags |= MNT_READONLY;
++      if (flags & MS_UNION)
++              mnt_flags |= MNT_UNION;
+ 
+       flags &= ~(MS_NOSUID | MS_NOEXEC | MS_NODEV | MS_ACTIVE |
+                  MS_NOATIME | MS_NODIRATIME | MS_RELATIME| MS_KERNMOUNT |
+-                 MS_STRICTATIME);
++                 MS_STRICTATIME | MS_UNION);
+ 
+       /* ... and get the mountpoint */
+       retval = kern_path(dir_name, LOOKUP_FOLLOW, &path);
+@@ -1959,7 +2061,8 @@ long do_mount(char *dev_name, char *dir_
+               retval = do_remount(&path, flags & ~MS_REMOUNT, mnt_flags,
+                                   data_page);
+       else if (flags & MS_BIND)
+-              retval = do_loopback(&path, dev_name, flags & MS_REC);
++              retval = do_loopback(&path, dev_name, flags & MS_REC,
++                                   mnt_flags);
+       else if (flags & (MS_SHARED | MS_PRIVATE | MS_SLAVE | MS_UNBINDABLE))
+               retval = do_change_type(&path, flags);
+       else if (flags & MS_MOVE)
+@@ -2196,6 +2299,8 @@ SYSCALL_DEFINE2(pivot_root, const char _
+       if (d_unlinked(old.dentry))
+               goto out2;
+       error = -EBUSY;
++      follow_union_down(&new);
++      follow_union_down(&root);
+       if (new.mnt == root.mnt ||
+           old.mnt == root.mnt)
+               goto out2; /* loop, on the same file system  */
+--- a/fs/nfsctl.c
++++ b/fs/nfsctl.c
+@@ -38,10 +38,10 @@ static struct file *do_open(char *name, 
+               return ERR_PTR(error);
+ 
+       if (flags == O_RDWR)
+-              error = may_open(&nd.path, MAY_READ|MAY_WRITE,
+-                                         FMODE_READ|FMODE_WRITE);
++              error = may_open(&nd, MAY_READ|MAY_WRITE,
++                               FMODE_READ|FMODE_WRITE);
+       else
+-              error = may_open(&nd.path, MAY_WRITE, FMODE_WRITE);
++              error = may_open(&nd, MAY_WRITE, FMODE_WRITE);
+ 
+       if (!error)
+               return dentry_open(nd.path.dentry, nd.path.mnt, flags,
+--- a/fs/nfsd/nfs3xdr.c
++++ b/fs/nfsd/nfs3xdr.c
+@@ -898,6 +898,11 @@ encode_entry(struct readdir_cd *ccd, con
+       int             elen;           /* estimated entry length in words */
+       int             num_entry_words = 0;    /* actual number of words */
+ 
++      if (d_type == DT_WHT) {
++              cd->common.err = nfs_ok;
++              return 0;
++      }
++
+       if (cd->offset) {
+               u64 offset64 = offset;
+ 
+--- a/fs/nfsd/nfs4xdr.c
++++ b/fs/nfsd/nfs4xdr.c
+@@ -2261,7 +2261,7 @@ nfsd4_encode_dirent(void *ccdv, const ch
+       __be32 nfserr = nfserr_toosmall;
+ 
+       /* In nfsv4, "." and ".." never make it onto the wire.. */
+-      if (name && isdotent(name, namlen)) {
++      if (d_type == DT_WHT || (name && isdotent(name, namlen))) {
+               cd->common.err = nfs_ok;
+               return 0;
+       }
+--- a/fs/nfsd/nfsxdr.c
++++ b/fs/nfsd/nfsxdr.c
+@@ -513,6 +513,10 @@ nfssvc_encode_entry(void *ccdv, const ch
+                       namlen, name, offset, ino);
+        */
+ 
++      if (d_type == DT_WHT) {
++              cd->common.err = nfs_ok;
++              return 0;
++      }
+       if (offset > ~((u32) 0)) {
+               cd->common.err = nfserr_fbig;
+               return -EINVAL;
+--- a/fs/open.c
++++ b/fs/open.c
+@@ -30,6 +30,7 @@
+ #include <linux/audit.h>
+ #include <linux/falloc.h>
+ #include <linux/fs_struct.h>
++#include <linux/union.h>
+ 
+ int vfs_statfs(struct dentry *dentry, struct kstatfs *buf)
+ {
+@@ -224,69 +225,69 @@ int do_truncate(struct dentry *dentry, l
+       return ret;
+ }
+ 
+-static long do_sys_truncate(const char __user *pathname, loff_t length)
++static int __do_ftruncate(struct file *file, unsigned long length, int small)
+ {
+-      struct path path;
+-      struct inode *inode;
++      struct inode * inode;
++      struct dentry *dentry;
+       int error;
+ 
+       error = -EINVAL;
+-      if (length < 0) /* sorry, but loff_t says... */
++      if (length < 0)
+               goto out;
++      /* explicitly opened as large or we are on 64-bit box */
++      if (file->f_flags & O_LARGEFILE)
++              small = 0;
+ 
+-      error = user_path(pathname, &path);
+-      if (error)
++      dentry = file->f_path.dentry;
++      inode = dentry->d_inode;
++      error = -EINVAL;
++      if (!S_ISREG(inode->i_mode) || !(file->f_mode & FMODE_WRITE))
+               goto out;
+-      inode = path.dentry->d_inode;
+-
+-      /* For directories it's -EISDIR, for other non-regulars - -EINVAL */
+-      error = -EISDIR;
+-      if (S_ISDIR(inode->i_mode))
+-              goto dput_and_out;
+ 
+       error = -EINVAL;
+-      if (!S_ISREG(inode->i_mode))
+-              goto dput_and_out;
+-
+-      error = mnt_want_write(path.mnt);
+-      if (error)
+-              goto dput_and_out;
++      /* Cannot ftruncate over 2^31 bytes without large file support */
++      if (small && length > MAX_NON_LFS)
+ 
+-      error = inode_permission(inode, MAY_WRITE);
+-      if (error)
+-              goto mnt_drop_write_and_out;
++              goto out;
+ 
+       error = -EPERM;
+       if (IS_APPEND(inode))
+-              goto mnt_drop_write_and_out;
++              goto out;
+ 
+-      error = get_write_access(inode);
+-      if (error)
+-              goto mnt_drop_write_and_out;
++      error = locks_verify_truncate(inode, file, length);
++      if (!error)
++              error = security_path_truncate(&file->f_path, length,
++                                             ATTR_MTIME|ATTR_CTIME);
++      if (!error)
++              /* Already copied up for union, opened with write */
++              error = do_truncate(dentry, length, ATTR_MTIME|ATTR_CTIME, file);
++out:
++      return error;
++}
+ 
+-      /*
+-       * Make sure that there are no leases.  get_write_access() protects
+-       * against the truncate racing with a lease-granting setlease().
+-       */
+-      error = break_lease(inode, FMODE_WRITE);
+-      if (error)
+-              goto put_write_and_out;
++static long do_sys_truncate(const char __user *pathname, loff_t length)
++{
++      struct file *file;
++      char *tmp;
++      int error;
+ 
+-      error = locks_verify_truncate(inode, NULL, length);
+-      if (!error)
+-              error = security_path_truncate(&path, length, 0);
+-      if (!error) {
+-              vfs_dq_init(inode);
+-              error = do_truncate(path.dentry, length, 0, NULL);
+-      }
++      error = -EINVAL;
++      if (length < 0) /* sorry, but loff_t says... */
++              return error;
+ 
+-put_write_and_out:
+-      put_write_access(inode);
+-mnt_drop_write_and_out:
+-      mnt_drop_write(path.mnt);
+-dput_and_out:
+-      path_put(&path);
+-out:
++      tmp = getname(pathname);
++      if (IS_ERR(tmp))
++              return PTR_ERR(tmp);
++
++      file = filp_open(tmp, O_RDWR | O_LARGEFILE, 0);
++      putname(tmp);
++
++      if (IS_ERR(file))
++              return PTR_ERR(file);
++
++      error = __do_ftruncate(file, length, 0);
++
++      fput(file);
+       return error;
+ }
+ 
+@@ -297,45 +298,16 @@ SYSCALL_DEFINE2(truncate, const char __u
+ 
+ static long do_sys_ftruncate(unsigned int fd, loff_t length, int small)
+ {
+-      struct inode * inode;
+-      struct dentry *dentry;
+       struct file * file;
+       int error;
+ 
+-      error = -EINVAL;
+-      if (length < 0)
+-              goto out;
+       error = -EBADF;
+       file = fget(fd);
+       if (!file)
+               goto out;
+ 
+-      /* explicitly opened as large or we are on 64-bit box */
+-      if (file->f_flags & O_LARGEFILE)
+-              small = 0;
+-
+-      dentry = file->f_path.dentry;
+-      inode = dentry->d_inode;
+-      error = -EINVAL;
+-      if (!S_ISREG(inode->i_mode) || !(file->f_mode & FMODE_WRITE))
+-              goto out_putf;
+-
+-      error = -EINVAL;
+-      /* Cannot ftruncate over 2^31 bytes without large file support */
+-      if (small && length > MAX_NON_LFS)
+-              goto out_putf;
++      error = __do_ftruncate(file, length, small);
+ 
+-      error = -EPERM;
+-      if (IS_APPEND(inode))
+-              goto out_putf;
+-
+-      error = locks_verify_truncate(inode, file, length);
+-      if (!error)
+-              error = security_path_truncate(&file->f_path, length,
+-                                             ATTR_MTIME|ATTR_CTIME);
+-      if (!error)
+-              error = do_truncate(dentry, length, ATTR_MTIME|ATTR_CTIME, file);
+-out_putf:
+       fput(file);
+ out:
+       return error;
+@@ -494,7 +466,8 @@ SYSCALL_DEFINE3(faccessat, int, dfd, con
+                       goto out_path_release;
+       }
+ 
+-      res = inode_permission(inode, mode | MAY_ACCESS);
++      res = union_permission(&path, mode | MAY_ACCESS);
++
+       /* SuS v2 requires we report a read only fs too */
+       if (res || !(mode & S_IWOTH) || special_file(inode->i_mode))
+               goto out_path_release;
+@@ -508,7 +481,8 @@ SYSCALL_DEFINE3(faccessat, int, dfd, con
+        * inherently racy and know that the fs may change
+        * state before we even see this result.
+        */
+-      if (__mnt_is_readonly(path.mnt))
++      if ((!is_unionized(path.dentry, path.mnt) &&
++           (__mnt_is_readonly(path.mnt))))
+               res = -EROFS;
+ 
+ out_path_release:
+@@ -554,20 +528,19 @@ SYSCALL_DEFINE1(fchdir, unsigned int, fd
+       error = -EBADF;
+       file = fget(fd);
+       if (!file)
+-              goto out;
++              return error;
+ 
+       inode = file->f_path.dentry->d_inode;
+ 
+       error = -ENOTDIR;
+       if (!S_ISDIR(inode->i_mode))
+-              goto out_putf;
++              goto out;
+ 
+       error = inode_permission(inode, MAY_EXEC | MAY_ACCESS);
+       if (!error)
+               set_fs_pwd(current->fs, &file->f_path);
+-out_putf:
+-      fput(file);
+ out:
++      fput(file);
+       return error;
+ }
+ 
+--- a/fs/readdir.c
++++ b/fs/readdir.c
+@@ -16,6 +16,7 @@
+ #include <linux/security.h>
+ #include <linux/syscalls.h>
+ #include <linux/unistd.h>
++#include <linux/union.h>
+ 
+ #include <asm/uaccess.h>
+ 
+@@ -36,9 +37,24 @@ int vfs_readdir(struct file *file, filld
+ 
+       res = -ENOENT;
+       if (!IS_DEADDIR(inode)) {
++              /*
++               * XXX Think harder about locking for
++               * union_copyup_dir.  Currently we lock the topmost
++               * directory and hold that lock while sequentially
++               * acquiring and dropping locks for the directories
++               * below this one in the union stack.
++               */
++              if (is_unionized(file->f_path.dentry, file->f_path.mnt) &&
++                  !IS_OPAQUE(inode)) {
++                      res = union_copyup_dir(&file->f_path);
++                      if (res)
++                              goto out_unlock;
++              }
++
+               res = file->f_op->readdir(file, buf, filler);
+               file_accessed(file);
+       }
++out_unlock:
+       mutex_unlock(&inode->i_mutex);
+ out:
+       return res;
+@@ -77,6 +93,9 @@ static int fillonedir(void * __buf, cons
+       struct old_linux_dirent __user * dirent;
+       unsigned long d_ino;
+ 
++      if (d_type == DT_WHT)
++              return 0;
++
+       if (buf->result)
+               return -EINVAL;
+       d_ino = ino;
+@@ -154,6 +173,9 @@ static int filldir(void * __buf, const c
+       unsigned long d_ino;
+       int reclen = ALIGN(NAME_OFFSET(dirent) + namlen + 2, sizeof(long));
+ 
++      if (d_type == DT_WHT)
++              return 0;
++
+       buf->error = -EINVAL;   /* only used if we fail.. */
+       if (reclen > buf->count)
+               return -EINVAL;
+@@ -239,6 +261,9 @@ static int filldir64(void * __buf, const
+       struct getdents_callback64 * buf = (struct getdents_callback64 *) __buf;
+       int reclen = ALIGN(NAME_OFFSET(dirent) + namlen + 1, sizeof(u64));
+ 
++      if (d_type == DT_WHT)
++              return 0;
++
+       buf->error = -EINVAL;   /* only used if we fail.. */
+       if (reclen > buf->count)
+               return -EINVAL;
+--- a/fs/super.c
++++ b/fs/super.c
+@@ -596,6 +596,15 @@ int do_remount_sb(struct super_block *sb
+       }
+       remount_rw = !(flags & MS_RDONLY) && (sb->s_flags & MS_RDONLY);
+ 
++      /* If we are remounting read/write, make sure that none of the
++         users require read-only for correct operation (such as
++         union mounts). */
++      if (remount_rw && sb->s_readonly_users) {
++              printk(KERN_INFO "%s: In use by %d read-only user(s)\n",
++                     sb->s_id, sb->s_readonly_users);
++              return -EROFS;
++      }
++
+       if (sb->s_op->remount_fs) {
+               retval = sb->s_op->remount_fs(sb, &flags, data);
+               if (retval)
+@@ -953,6 +962,11 @@ vfs_kern_mount(struct file_system_type *
+       WARN((mnt->mnt_sb->s_maxbytes < 0), "%s set sb->s_maxbytes to "
+               "negative value (%lld)\n", type->name, mnt->mnt_sb->s_maxbytes);
+ 
++      error = -EROFS;
++      if (!(flags & MS_RDONLY) &&
++          (mnt->mnt_sb->s_readonly_users))
++              goto out_sb;
++
+       mnt->mnt_mountpoint = mnt->mnt_root;
+       mnt->mnt_parent = mnt;
+       up_write(&mnt->mnt_sb->s_umount);
+--- /dev/null
++++ b/fs/union.c
+@@ -0,0 +1,981 @@
++/*
++ * VFS based union mount for Linux
++ *
++ * Copyright (C) 2004-2007 IBM Corporation, IBM Deutschland Entwicklung GmbH.
++ * Copyright (C) 2007-2009 Novell Inc.
++ *
++ *   Author(s): Jan Blunck (j.blunck@tu-harburg.de)
++ *              Valerie Aurora <vaurora@redhat.com>
++ *
++ * 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.
++ */
++
++#include <linux/bootmem.h>
++#include <linux/init.h>
++#include <linux/module.h>
++#include <linux/types.h>
++#include <linux/hash.h>
++#include <linux/fs.h>
++#include <linux/mount.h>
++#include <linux/fs_struct.h>
++#include <linux/union.h>
++#include <linux/namei.h>
++#include <linux/file.h>
++#include <linux/mm.h>
++#include <linux/quotaops.h>
++#include <linux/dnotify.h>
++#include <linux/security.h>
++#include <linux/pipe_fs_i.h>
++#include <linux/splice.h>
++
++/*
++ * This is borrowed from fs/inode.c. The hashtable for lookups. Somebody
++ * should try to make this good - I've just made it work.
++ */
++static unsigned int union_hash_mask __read_mostly;
++static unsigned int union_hash_shift __read_mostly;
++static struct hlist_head *union_hashtable __read_mostly;
++static unsigned int union_rhash_mask __read_mostly;
++static unsigned int union_rhash_shift __read_mostly;
++static struct hlist_head *union_rhashtable __read_mostly;
++
++/*
++ * Locking Rules:
++ * - dcache_lock (for union_rlookup() only)
++ * - union_lock
++ */
++DEFINE_SPINLOCK(union_lock);
++
++static struct kmem_cache *union_cache __read_mostly;
++
++static unsigned long hash(struct dentry *dentry, struct vfsmount *mnt)
++{
++      unsigned long tmp;
++
++      tmp = ((unsigned long)mnt * (unsigned long)dentry) ^
++              (GOLDEN_RATIO_PRIME + (unsigned long)mnt) / L1_CACHE_BYTES;
++      tmp = tmp ^ ((tmp ^ GOLDEN_RATIO_PRIME) >> union_hash_shift);
++      return tmp & union_hash_mask;
++}
++
++static __initdata unsigned long union_hash_entries;
++
++static int __init set_union_hash_entries(char *str)
++{
++      if (!str)
++              return 0;
++      union_hash_entries = simple_strtoul(str, &str, 0);
++      return 1;
++}
++
++__setup("union_hash_entries=", set_union_hash_entries);
++
++static int __init init_union(void)
++{
++      int loop;
++
++      union_cache = KMEM_CACHE(union_mount, SLAB_PANIC | SLAB_MEM_SPREAD);
++      union_hashtable = alloc_large_system_hash("Union-cache",
++                                                sizeof(struct hlist_head),
++                                                union_hash_entries,
++                                                14,
++                                                0,
++                                                &union_hash_shift,
++                                                &union_hash_mask,
++                                                0);
++
++      for (loop = 0; loop < (1 << union_hash_shift); loop++)
++              INIT_HLIST_HEAD(&union_hashtable[loop]);
++
++
++      union_rhashtable = alloc_large_system_hash("rUnion-cache",
++                                                sizeof(struct hlist_head),
++                                                union_hash_entries,
++                                                14,
++                                                0,
++                                                &union_rhash_shift,
++                                                &union_rhash_mask,
++                                                0);
++
++      for (loop = 0; loop < (1 << union_rhash_shift); loop++)
++              INIT_HLIST_HEAD(&union_rhashtable[loop]);
++
++      return 0;
++}
++
++fs_initcall(init_union);
++
++struct union_mount *union_alloc(struct dentry *this, struct vfsmount *this_mnt,
++                              struct dentry *next, struct vfsmount *next_mnt)
++{
++      struct union_mount *um;
++
++      BUG_ON(!S_ISDIR(this->d_inode->i_mode));
++      BUG_ON(!S_ISDIR(next->d_inode->i_mode));
++
++      um = kmem_cache_alloc(union_cache, GFP_ATOMIC);
++      if (!um)
++              return NULL;
++
++      atomic_set(&um->u_count, 1);
++      INIT_LIST_HEAD(&um->u_unions);
++      INIT_LIST_HEAD(&um->u_list);
++      INIT_HLIST_NODE(&um->u_hash);
++      INIT_HLIST_NODE(&um->u_rhash);
++
++      um->u_this.mnt = this_mnt;
++      um->u_this.dentry = this;
++      um->u_next.mnt = mntget(next_mnt);
++      um->u_next.dentry = dget(next);
++
++      return um;
++}
++
++struct union_mount *union_get(struct union_mount *um)
++{
++      BUG_ON(!atomic_read(&um->u_count));
++      atomic_inc(&um->u_count);
++      return um;
++}
++
++static int __union_put(struct union_mount *um)
++{
++      if (!atomic_dec_and_test(&um->u_count))
++              return 0;
++
++      BUG_ON(!hlist_unhashed(&um->u_hash));
++      BUG_ON(!hlist_unhashed(&um->u_rhash));
++
++      kmem_cache_free(union_cache, um);
++      return 1;
++}
++
++void union_put(struct union_mount *um)
++{
++      struct path tmp = um->u_next;
++
++      if (__union_put(um))
++              path_put(&tmp);
++}
++
++static void __union_hash(struct union_mount *um)
++{
++      hlist_add_head(&um->u_hash, union_hashtable +
++                     hash(um->u_this.dentry, um->u_this.mnt));
++      hlist_add_head(&um->u_rhash, union_rhashtable +
++                     hash(um->u_next.dentry, um->u_next.mnt));
++}
++
++static void __union_unhash(struct union_mount *um)
++{
++      hlist_del_init(&um->u_hash);
++      hlist_del_init(&um->u_rhash);
++}
++
++struct union_mount *union_lookup(struct dentry *dentry, struct vfsmount *mnt)
++{
++      struct hlist_head *head = union_hashtable + hash(dentry, mnt);
++      struct hlist_node *node;
++      struct union_mount *um;
++
++      hlist_for_each_entry(um, node, head, u_hash) {
++              if ((um->u_this.dentry == dentry) &&
++                  (um->u_this.mnt == mnt))
++                      return um;
++      }
++
++      return NULL;
++}
++
++struct union_mount *union_rlookup(struct dentry *dentry, struct vfsmount *mnt)
++{
++      struct hlist_head *head = union_rhashtable + hash(dentry, mnt);
++      struct hlist_node *node;
++      struct union_mount *um;
++
++      hlist_for_each_entry(um, node, head, u_rhash) {
++              if ((um->u_next.dentry == dentry) &&
++                  (um->u_next.mnt == mnt))
++                      return um;
++      }
++
++      return NULL;
++}
++
++/*
++ * is_unionized - check if a dentry lives on a union mounted file system
++ *
++ * This tests if a dentry is living on an union mounted file system by walking
++ * the file system hierarchy.
++ */
++int is_unionized(struct dentry *dentry, struct vfsmount *mnt)
++{
++      struct path this = { .mnt = mntget(mnt),
++                           .dentry = dget(dentry) };
++      struct vfsmount *tmp;
++
++      do {
++              /* check if there is an union mounted on top of us */
++              spin_lock(&vfsmount_lock);
++              list_for_each_entry(tmp, &this.mnt->mnt_mounts, mnt_child) {
++                      if (!(tmp->mnt_flags & MNT_UNION))
++                              continue;
++                      /* Isn't this a bug? */
++                      if (this.dentry->d_sb != tmp->mnt_mountpoint->d_sb)
++                              continue;
++                      if (is_subdir(this.dentry, tmp->mnt_mountpoint)) {
++                              spin_unlock(&vfsmount_lock);
++                              path_put(&this);
++                              return 1;
++                      }
++              }
++              spin_unlock(&vfsmount_lock);
++
++              /* check our mountpoint next */
++              tmp = mntget(this.mnt->mnt_parent);
++              dput(this.dentry);
++              this.dentry = dget(this.mnt->mnt_mountpoint);
++              mntput(this.mnt);
++              this.mnt = tmp;
++      } while (this.mnt != this.mnt->mnt_parent);
++
++      path_put(&this);
++      return 0;
++}
++
++int append_to_union(struct vfsmount *mnt, struct dentry *dentry,
++                  struct vfsmount *dest_mnt, struct dentry *dest_dentry)
++{
++      struct union_mount *this, *um;
++
++      BUG_ON(!IS_MNT_UNION(mnt));
++
++      this = union_alloc(dentry, mnt, dest_dentry, dest_mnt);
++      if (!this)
++              return -ENOMEM;
++
++      spin_lock(&union_lock);
++      um = union_lookup(dentry, mnt);
++      if (um) {
++              BUG_ON((um->u_next.dentry != dest_dentry) ||
++                     (um->u_next.mnt != dest_mnt));
++              spin_unlock(&union_lock);
++              union_put(this);
++              return 0;
++      }
++      list_add(&this->u_list, &mnt->mnt_unions);
++      list_add(&this->u_unions, &dentry->d_unions);
++      dest_dentry->d_unionized++;
++      __union_hash(this);
++      spin_unlock(&union_lock);
++      return 0;
++}
++
++/*
++ * follow_union_down - follow the union stack one layer down
++ *
++ * This is called to traverse the union stack from one layer to the next
++ * overlayed one. follow_union_down() is called by various lookup functions
++ * that are aware of union mounts.
++ *
++ * Returns non-zero if followed to the next layer, zero otherwise.
++ */
++int follow_union_down(struct path *path)
++{
++      struct union_mount *um;
++
++      if (!IS_MNT_UNION(path->mnt))
++              return 0;
++
++      spin_lock(&union_lock);
++      um = union_lookup(path->dentry, path->mnt);
++      spin_unlock(&union_lock);
++      if (um) {
++              path_get(&um->u_next);
++              dput(path->dentry);
++              path->dentry = um->u_next.dentry;
++              mntput(path->mnt);
++              path->mnt = um->u_next.mnt;
++              return 1;
++      }
++      return 0;
++}
++
++/*
++ * follow_union_mount - follow the union stack to the topmost layer
++ *
++ * This is called to traverse the union stack to the topmost layer. This is
++ * necessary for following parent pointers in an union mount.
++ *
++ * Returns none zero if followed to the topmost layer, zero otherwise.
++ */
++int follow_union_mount(struct path *path)
++{
++      struct union_mount *um;
++      int res = 0;
++
++      while (IS_UNION(path->dentry)) {
++              spin_lock(&dcache_lock);
++              spin_lock(&union_lock);
++              um = union_rlookup(path->dentry, path->mnt);
++              if (um)
++                      path_get(&um->u_this);
++              spin_unlock(&union_lock);
++              spin_unlock(&dcache_lock);
++
++              /*
++               * Q: Aaargh, how do I validate the topmost dentry pointer?
++               * A: Eeeeasy! We took the dcache_lock and union_lock. Since
++               *    this protects from any dput'ng going on, we know that the
++               *    dentry is valid since the union is unhashed under
++               *    dcache_lock too.
++               */
++              if (!um)
++                      break;
++              dput(path->dentry);
++              path->dentry = um->u_this.dentry;
++              mntput(path->mnt);
++              path->mnt = um->u_this.mnt;
++              res = 1;
++      }
++
++      return res;
++}
++
++/*
++ * Union mount copyup support
++ */
++
++extern int hash_lookup_union(struct nameidata *, struct qstr *, struct path *);
++extern void follow_mount(struct path *);
++
++/*
++ * union_relookup_topmost - lookup and create the topmost path to dentry
++ * @nd: pointer to nameidata
++ * @flags: lookup flags
++ */
++static int union_relookup_topmost(struct nameidata *nd, int flags)
++{
++      int err;
++      char *kbuf, *name;
++      struct nameidata this;
++
++      kbuf = (char *)__get_free_page(GFP_KERNEL);
++      if (!kbuf)
++              return -ENOMEM;
++
++      name = d_path(&nd->path, kbuf, PAGE_SIZE);
++      err = PTR_ERR(name);
++      if (IS_ERR(name))
++              goto free_page;
++
++      err = path_lookup(name, flags|LOOKUP_CREATE|LOOKUP_TOPMOST, &this);
++      if (err)
++              goto free_page;
++
++      path_put(&nd->path);
++      nd->path.dentry = this.path.dentry;
++      nd->path.mnt = this.path.mnt;
++
++      /*
++       * the nd->flags should be unchanged
++       */
++      BUG_ON(this.um_flags & LAST_LOWLEVEL);
++      nd->um_flags &= ~LAST_LOWLEVEL;
++ free_page:
++      free_page((unsigned long)kbuf);
++      return err;
++}
++
++static void __update_fs_pwd(struct path *path, struct dentry *dentry,
++                          struct vfsmount *mnt)
++{
++      struct path old = { NULL, NULL };
++
++      write_lock(&current->fs->lock);
++      if (current->fs->pwd.dentry == path->dentry) {
++              old = current->fs->pwd;
++              path_get(&current->fs->pwd);
++      }
++      write_unlock(&current->fs->lock);
++
++      if (old.dentry)
++              path_put(&old);
++
++      return;
++}
++
++/**
++ * union_permission  -  check for access rights to a given inode
++ * @inode:    inode to check permission on
++ * @mask:     right to check for (%MAY_READ, %MAY_WRITE, %MAY_EXEC)
++ *
++ * In a union mount, the top layer is always read-write and the bottom
++ * is always read-only.  Ignore the read-only flag on the lower fs.
++ *
++ * Only need for certain activities, like checking to see if write
++ * access is ok.
++ */
++
++int union_permission(struct path *path, int mask)
++{
++      struct inode *inode = path->dentry->d_inode;
++
++      if (!is_unionized(path->dentry, path->mnt))
++              return inode_permission(inode, mask);
++
++      /* Tell __inode_permission to ignore MS_RDONLY */
++      return __inode_permission(inode, mask, 0);
++}
++
++/*
++ * union_create_topmost - create the topmost path component
++ * @nd: pointer to nameidata of the base directory
++ * @name: pointer to file name
++ * @path: pointer to path of the overlaid file
++ *
++ * This is called by __link_path_walk() to create the directories on a path
++ * when it is called with LOOKUP_TOPMOST.
++ */
++struct dentry *union_create_topmost(struct nameidata *nd, struct qstr *name,
++                                  struct path *path)
++{
++      struct dentry *dentry, *parent = nd->path.dentry;
++      int res, mode = path->dentry->d_inode->i_mode;
++
++      if (parent->d_sb == path->dentry->d_sb)
++              return ERR_PTR(-EEXIST);
++
++      mutex_lock(&parent->d_inode->i_mutex);
++      dentry = lookup_one_len(name->name, nd->path.dentry, name->len);
++      if (IS_ERR(dentry))
++              goto out_unlock;
++
++      switch (mode & S_IFMT) {
++      case S_IFREG:
++              /*
++               * FIXME: Does this make any sense in this case?
++               * Special case - lookup gave negative, but... we had foo/bar/
++               * From the vfs_mknod() POV we just have a negative dentry -
++               * all is fine. Let's be bastards - you had / on the end,you've
++               * been asking for (non-existent) directory. -ENOENT for you.
++               */
++              if (name->name[name->len] && !dentry->d_inode) {
++                      dput(dentry);
++                      dentry = ERR_PTR(-ENOENT);
++                      goto out_unlock;
++              }
++
++              res = vfs_create(parent->d_inode, dentry, mode, nd);
++              if (res) {
++                      dput(dentry);
++                      dentry = ERR_PTR(res);
++                      goto out_unlock;
++              }
++              break;
++      case S_IFDIR:
++              res = vfs_mkdir(parent->d_inode, dentry, mode);
++              if (res) {
++                      dput(dentry);
++                      dentry = ERR_PTR(res);
++                      goto out_unlock;
++              }
++
++              res = append_to_union(nd->path.mnt, dentry, path->mnt,
++                                    path->dentry);
++              if (res) {
++                      dput(dentry);
++                      dentry = ERR_PTR(res);
++                      goto out_unlock;
++              }
++              break;
++      default:
++              dput(dentry);
++              dentry = ERR_PTR(-EINVAL);
++              goto out_unlock;
++      }
++
++      /* FIXME: Really necessary ??? */
++/*    __update_fs_pwd(path, dentry, nd->path.mnt); */
++
++ out_unlock:
++      mutex_unlock(&parent->d_inode->i_mutex);
++      return dentry;
++}
++
++static int union_copy_file(struct dentry *old_dentry, struct vfsmount *old_mnt,
++                         struct dentry *new_dentry, struct vfsmount *new_mnt)
++{
++      int ret;
++      size_t size;
++      loff_t offset;
++      struct file *old_file, *new_file;
++      const struct cred *cred = current_cred();
++
++      dget(old_dentry);
++      mntget(old_mnt);
++      old_file = dentry_open(old_dentry, old_mnt, O_RDONLY, cred);
++      if (IS_ERR(old_file))
++              return PTR_ERR(old_file);
++
++      dget(new_dentry);
++      mntget(new_mnt);
++      new_file = dentry_open(new_dentry, new_mnt, O_WRONLY, cred);
++      ret = PTR_ERR(new_file);
++      if (IS_ERR(new_file))
++              goto fput_old;
++
++      /* XXX be smart by using a length param, which indicates max
++       * data we'll want (e.g., we are about to truncate to 0 or 10
++       * bytes or something */
++      size = i_size_read(old_file->f_path.dentry->d_inode);
++      if (((size_t)size != size) || ((ssize_t)size != size)) {
++              ret = -EFBIG;
++              goto fput_new;
++      }
++
++      offset = 0;
++      ret = do_splice_direct(old_file, &offset, new_file, size,
++                             SPLICE_F_MOVE);
++      if (ret >= 0)
++              ret = 0;
++ fput_new:
++      fput(new_file);
++ fput_old:
++      fput(old_file);
++      return ret;
++}
++
++/**
++ * __union_copyup - copy a file to the topmost directory
++ * @old: pointer to path of the old file name
++ * @new_nd: pointer to nameidata of the topmost directory
++ * @new: pointer to path of the new file name
++ *
++ * The topmost directory @new_nd must already be locked. Creates the topmost
++ * file if it doesn't exist yet.
++ */
++int __union_copyup(struct path *old, struct nameidata *new_nd,
++                 struct path *new)
++{
++      struct dentry *dentry;
++      int error;
++
++      /* Maybe this should be -EINVAL */
++      if (S_ISDIR(old->dentry->d_inode->i_mode))
++              return -EISDIR;
++
++      if (new_nd->path.dentry != new->dentry->d_parent) {
++              mutex_lock(&new_nd->path.dentry->d_inode->i_mutex);
++              dentry = lookup_one_len(new->dentry->d_name.name,
++                                      new_nd->path.dentry,
++                                      new->dentry->d_name.len);
++              mutex_unlock(&new_nd->path.dentry->d_inode->i_mutex);
++              if (IS_ERR(dentry))
++                      return PTR_ERR(dentry);
++              error = -EEXIST;
++              if (dentry->d_inode)
++                      goto out_dput;
++      } else
++              dentry = dget(new->dentry);
++
++      if (!dentry->d_inode) {
++              error = vfs_create(new_nd->path.dentry->d_inode, dentry,
++                                 old->dentry->d_inode->i_mode, new_nd);
++              if (error)
++                      goto out_dput;
++      }
++
++      BUG_ON(!S_ISREG(old->dentry->d_inode->i_mode));
++      error = union_copy_file(old->dentry, old->mnt, dentry,
++                              new_nd->path.mnt);
++      if (error) {
++              /* FIXME: are there return value we should not
++               * BUG() on ? */
++              BUG_ON(vfs_unlink(new_nd->path.dentry->d_inode,
++                                dentry));
++              goto out_dput;
++      }
++
++      dput(new->dentry);
++      new->dentry = dentry;
++      if (new->mnt != new_nd->path.mnt)
++              mntput(new->mnt);
++      new->mnt = new_nd->path.mnt;
++      return error;
++
++out_dput:
++      dput(dentry);
++      return error;
++}
++
++/*
++ * union_copyup - copy a file to the topmost layer of the union stack
++ * @nd: nameidata pointer to the file
++ * @flags: flags given to open_namei
++ */
++int union_copyup(struct nameidata *nd, int flags /* XXX not used */)
++{
++      struct qstr this;
++      char *name;
++      struct dentry *dir;
++      struct path path;
++      int err;
++
++      if (!is_unionized(nd->path.dentry, nd->path.mnt))
++              return 0;
++      if (!S_ISREG(nd->path.dentry->d_inode->i_mode))
++              return 0;
++
++      /* safe the name for hash_lookup_union() */
++      this.len = nd->path.dentry->d_name.len;
++      this.hash = nd->path.dentry->d_name.hash;
++      name = kmalloc(this.len + 1, GFP_KERNEL);
++      if (!name)
++              return -ENOMEM;
++      this.name = name;
++      memcpy(name, nd->path.dentry->d_name.name, nd->path.dentry->d_name.len);
++      name[this.len] = 0;
++
++      err = union_relookup_topmost(nd, nd->flags|LOOKUP_PARENT);
++      if (err) {
++              kfree(name);
++              return err;
++      }
++      nd->flags &= ~LOOKUP_PARENT;
++
++      dir = nd->path.dentry;
++      mutex_lock(&dir->d_inode->i_mutex);
++      err = hash_lookup_union(nd, &this, &path);
++      mutex_unlock(&dir->d_inode->i_mutex);
++      kfree(name);
++      if (err)
++              return err;
++
++      err = -ENOENT;
++      if (!path.dentry->d_inode)
++              goto exit_dput;
++
++      /* Necessary?! I guess not ... */
++      follow_mount(&path);
++
++      err = -ENOENT;
++      if (!path.dentry->d_inode)
++              goto exit_dput;
++
++      err = -EISDIR;
++      if (!S_ISREG(path.dentry->d_inode->i_mode))
++              goto exit_dput;
++
++      if (path.dentry->d_parent != nd->path.dentry) {
++              err = __union_copyup(&path, nd, &path);
++              if (err)
++                      goto exit_dput;
++      }
++
++      dput(nd->path.dentry);
++      if (nd->path.mnt != path.mnt)
++              mntput(nd->path.mnt);
++      nd->path = path;
++      return 0;
++
++exit_dput:
++      dput(path.dentry);
++      if (path.mnt != nd->path.mnt)
++              mntput(path.mnt);
++      return err;
++}
++
++/*
++ * This must be called when unhashing a dentry. This is called with dcache_lock
++ * and unhashes all unions this dentry is in.
++ */
++void __d_drop_unions(struct dentry *dentry)
++{
++      struct union_mount *this, *next;
++
++      spin_lock(&union_lock);
++      list_for_each_entry_safe(this, next, &dentry->d_unions, u_unions)
++              __union_unhash(this);
++      spin_unlock(&union_lock);
++}
++EXPORT_SYMBOL_GPL(__d_drop_unions);
++
++/*
++ * This must be called after __d_drop_unions() without holding any locks.
++ * Note: The dentry might still be reachable via a lookup but at that time it
++ * already a negative dentry. Otherwise it would be unhashed. The union_mount
++ * structure itself is still reachable through mnt->mnt_unions (which we
++ * protect against with union_lock).
++ */
++void shrink_d_unions(struct dentry *dentry)
++{
++      struct union_mount *this, *next;
++
++repeat:
++      spin_lock(&union_lock);
++      list_for_each_entry_safe(this, next, &dentry->d_unions, u_unions) {
++              BUG_ON(!hlist_unhashed(&this->u_hash));
++              BUG_ON(!hlist_unhashed(&this->u_rhash));
++              list_del(&this->u_list);
++              list_del(&this->u_unions);
++              this->u_next.dentry->d_unionized--;
++              spin_unlock(&union_lock);
++              union_put(this);
++              goto repeat;
++      }
++      spin_unlock(&union_lock);
++}
++
++extern void __dput(struct dentry *, struct list_head *, int);
++
++/*
++ * This is the special variant for use in dput() only.
++ */
++void __shrink_d_unions(struct dentry *dentry, struct list_head *list)
++{
++      struct union_mount *this, *next;
++
++      BUG_ON(!d_unhashed(dentry));
++
++repeat:
++      spin_lock(&union_lock);
++      list_for_each_entry_safe(this, next, &dentry->d_unions, u_unions) {
++              struct dentry *n_dentry = this->u_next.dentry;
++              struct vfsmount *n_mnt = this->u_next.mnt;
++
++              BUG_ON(!hlist_unhashed(&this->u_hash));
++              BUG_ON(!hlist_unhashed(&this->u_rhash));
++              list_del(&this->u_list);
++              list_del(&this->u_unions);
++              this->u_next.dentry->d_unionized--;
++              spin_unlock(&union_lock);
++              if (__union_put(this)) {
++                      __dput(n_dentry, list, 0);
++                      mntput(n_mnt);
++              }
++              goto repeat;
++      }
++      spin_unlock(&union_lock);
++}
++
++/*
++ * Remove all union_mounts structures belonging to this vfsmount from the
++ * union lookup hashtable and so on ...
++ */
++void shrink_mnt_unions(struct vfsmount *mnt)
++{
++      struct union_mount *this, *next;
++
++repeat:
++      spin_lock(&union_lock);
++      list_for_each_entry_safe(this, next, &mnt->mnt_unions, u_list) {
++              if (this->u_this.dentry == mnt->mnt_root)
++                      continue;
++              __union_unhash(this);
++              list_del(&this->u_list);
++              list_del(&this->u_unions);
++              this->u_next.dentry->d_unionized--;
++              spin_unlock(&union_lock);
++              union_put(this);
++              goto repeat;
++      }
++      spin_unlock(&union_lock);
++}
++
++int attach_mnt_union(struct vfsmount *mnt, struct vfsmount *dest_mnt,
++                   struct dentry *dest_dentry)
++{
++      if (!IS_MNT_UNION(mnt))
++              return 0;
++
++      return append_to_union(mnt, mnt->mnt_root, dest_mnt, dest_dentry);
++}
++
++void detach_mnt_union(struct vfsmount *mnt)
++{
++      struct union_mount *um;
++
++      if (!IS_MNT_UNION(mnt))
++              return;
++
++      shrink_mnt_unions(mnt);
++
++      spin_lock(&union_lock);
++      um = union_lookup(mnt->mnt_root, mnt);
++      __union_unhash(um);
++      list_del(&um->u_list);
++      list_del(&um->u_unions);
++      um->u_next.dentry->d_unionized--;
++      spin_unlock(&union_lock);
++      union_put(um);
++      return;
++}
++
++/**
++ * union_copyup_dir_one - copy up a single directory entry
++ *
++ * Individual directory entry copyup function for union_copyup_dir.
++ * We get the entries from higher level layers first.
++ */
++
++static int union_copyup_dir_one(void *buf, const char *name, int namlen,
++                              loff_t offset, u64 ino, unsigned int d_type)
++{
++      struct dentry *topmost_dentry = (struct dentry *) buf;
++      struct dentry *dentry;
++      int err = 0;
++
++      switch (namlen) {
++      case 2:
++              if (name[1] != '.')
++                      break;
++      case 1:
++              if (name[0] != '.')
++                      break;
++              return 0;
++      }
++
++      /* Lookup this entry in the topmost directory */
++      dentry = lookup_one_len(name, topmost_dentry, namlen);
++
++      if (IS_ERR(dentry)) {
++              printk(KERN_INFO "error looking up %s\n", dentry->d_name.name);
++              goto out;
++      }
++
++      /*
++       * If the entry already exists, one of the following is true:
++       * it was already copied up (due to an earlier lookup), an
++       * entry with the same name already exists on the topmost file
++       * system, it is a whiteout, or it is a fallthru.  In each
++       * case, the top level entry masks any entries from lower file
++       * systems, so don't copy up this entry.
++       */
++      if (dentry->d_inode || d_is_whiteout(dentry) ||
++          d_is_fallthru(dentry)) {
++              printk(KERN_INFO "skipping copy of %s\n", dentry->d_name.name);
++              goto out_dput;
++      }
++
++      /*
++       * If the entry doesn't exist, create a fallthru entry in the
++       * topmost file system.  All possible directory types are
++       * used, so each file system must implement its own way of
++       * storing a fallthru entry.
++       */
++      printk(KERN_INFO "creating fallthru for %s\n", dentry->d_name.name);
++      err = topmost_dentry->d_inode->i_op->fallthru(topmost_dentry->d_inode,
++                                                    dentry);
++      /* FIXME */
++      BUG_ON(err);
++      /*
++       * At this point, we have a negative dentry marked as fallthru
++       * in the cache.  We could potentially lookup the entry lower
++       * level file system and turn this into a positive dentry
++       * right now, but it is not clear that would be a performance
++       * win and adds more opportunities to fail.
++       */
++out_dput:
++      dput(dentry);
++out:
++      return 0;
++}
++
++/**
++ * union_copyup_dir - copy up low-level directory entries to topmost dir
++ *
++ * readdir() is difficult to support on union file systems for two
++ * reasons: We must eliminate duplicates and apply whiteouts, and we
++ * must return something in f_pos that lets us restart in the same
++ * place when we return.  Our solution is to, on first readdir() of
++ * the directory, copy up all visible entries from the low-level file
++ * systems and mark the entries that refer to low-level file system
++ * objects as "fallthru" entries.
++ */
++
++int union_copyup_dir(struct path *topmost_path)
++{
++      struct dentry *topmost_dentry = topmost_path->dentry;
++      struct path path = *topmost_path;
++      int res = 0;
++
++      /*
++       * Skip opaque dirs.
++       */
++      if (IS_OPAQUE(topmost_dentry->d_inode))
++              return 0;
++
++      /*
++       * Mark this dir opaque to show that we have already copied up
++       * the lower entries.  Only fallthru entries pass through to
++       * the underlying file system.
++       *
++       * XXX Deal with the lower file system changing.  This could
++       * be through running a tool over the top level file system to
++       * make directories transparent again, or we could check the
++       * mtime of the underlying directory.
++       */
++
++      topmost_dentry->d_inode->i_flags |= S_OPAQUE;
++      mark_inode_dirty(topmost_dentry->d_inode);
++
++      /*
++       * Loop through each dir on each level copying up the entries
++       * to the topmost.
++       */
++
++      /* Don't drop the caller's reference to the topmost path */
++      path_get(&path);
++      while (follow_union_down(&path)) {
++              struct file * ftmp;
++              struct inode * inode;
++
++              /* XXX Permit fallthrus on lower-level? Would need to
++               * pass in opaque flag to union_copyup_dir_one() and
++               * only copy up fallthru entries there.  We allow
++               * fallthrus in lower level opaque directories on
++               * lookup, so for consistency we should do one or the
++               * other in both places. */
++              if (IS_OPAQUE(path.dentry->d_inode))
++                      break;
++
++              /* dentry_open() doesn't get a path reference itself */
++              path_get(&path);
++              ftmp = dentry_open(path.dentry, path.mnt,
++                                 O_RDONLY | O_DIRECTORY | O_NOATIME,
++                                 current_cred());
++              if (IS_ERR(ftmp)) {
++                      printk (KERN_ERR "unable to open dir %s for "
++                              "directory copyup: %ld\n",
++                              path.dentry->d_name.name, PTR_ERR(ftmp));
++                      continue;
++              }
++
++              inode = path.dentry->d_inode;
++              mutex_lock(&inode->i_mutex);
++
++              res = -ENOENT;
++              if (IS_DEADDIR(inode))
++                      goto out_fput;
++              /*
++               * Read the whole directory, calling our directory
++               * entry copyup function on each entry.  Pass in the
++               * topmost dentry as our private data so we can create
++               * new entries in the topmost directory.
++               */
++              res = ftmp->f_op->readdir(ftmp, topmost_dentry,
++                                        union_copyup_dir_one);
++out_fput:
++              mutex_unlock(&inode->i_mutex);
++              fput(ftmp);
++
++              if (res)
++                      break;
++      }
++      path_put(&path);
++      return res;
++}
+--- a/include/linux/dcache.h
++++ b/include/linux/dcache.h
+@@ -101,6 +101,15 @@ struct dentry {
+       struct dentry *d_parent;        /* parent directory */
+       struct qstr d_name;
+ 
++#ifdef CONFIG_UNION_MOUNT
++      /*
++       * The following fields are used by the VFS based union mount
++       * implementation. Both are protected by union_lock!
++       */
++      struct list_head d_unions;      /* list of union_mount's */
++      unsigned int d_unionized;       /* unions referencing this dentry */
++#endif
++
+       struct list_head d_lru;         /* LRU list */
+       /*
+        * d_child and d_rcu can share memory
+@@ -186,6 +195,9 @@ d_iput:            no              no              no       yes
+ 
+ #define DCACHE_FSNOTIFY_PARENT_WATCHED        0x0080 /* Parent inode is watched by some fsnotify listener */
+ 
++#define DCACHE_WHITEOUT               0x0100  /* This negative dentry is a whiteout */
++#define DCACHE_FALLTHRU               0x0200  /* Keep looking in the file system below */
++
+ extern spinlock_t dcache_lock;
+ extern seqlock_t rename_lock;
+ 
+@@ -205,12 +217,20 @@ extern seqlock_t rename_lock;
+  * __d_drop requires dentry->d_lock.
+  */
+ 
++#ifdef CONFIG_UNION_MOUNT
++extern void __d_drop_unions(struct dentry *);
++#endif
++
+ static inline void __d_drop(struct dentry *dentry)
+ {
+       if (!(dentry->d_flags & DCACHE_UNHASHED)) {
+               dentry->d_flags |= DCACHE_UNHASHED;
+               hlist_del_rcu(&dentry->d_hash);
+       }
++#ifdef CONFIG_UNION_MOUNT
++      /* remove dentry from the union hashtable */
++      __d_drop_unions(dentry);
++#endif
+ }
+ 
+ static inline void d_drop(struct dentry *dentry)
+@@ -358,6 +378,16 @@ static inline int d_unlinked(struct dent
+       return d_unhashed(dentry) && !IS_ROOT(dentry);
+ }
+ 
++static inline int d_is_whiteout(struct dentry *dentry)
++{
++      return (dentry->d_flags & DCACHE_WHITEOUT);
++}
++
++static inline int d_is_fallthru(struct dentry *dentry)
++{
++      return (dentry->d_flags & DCACHE_FALLTHRU);
++}
++
+ static inline struct dentry *dget_parent(struct dentry *dentry)
+ {
+       struct dentry *ret;
+--- a/include/linux/ext2_fs.h
++++ b/include/linux/ext2_fs.h
+@@ -189,6 +189,7 @@ struct ext2_group_desc
+ #define EXT2_NOTAIL_FL                        FS_NOTAIL_FL    /* file tail should not be merged */
+ #define EXT2_DIRSYNC_FL                       FS_DIRSYNC_FL   /* dirsync behaviour (directories only) */
+ #define EXT2_TOPDIR_FL                        FS_TOPDIR_FL    /* Top of directory hierarchies*/
++#define EXT2_OPAQUE_FL                        0x00040000
+ #define EXT2_RESERVED_FL              FS_RESERVED_FL  /* reserved for ext2 lib */
+ 
+ #define EXT2_FL_USER_VISIBLE          FS_FL_USER_VISIBLE      /* User visible flags */
+@@ -503,10 +504,12 @@ struct ext2_super_block {
+ #define EXT3_FEATURE_INCOMPAT_RECOVER         0x0004
+ #define EXT3_FEATURE_INCOMPAT_JOURNAL_DEV     0x0008
+ #define EXT2_FEATURE_INCOMPAT_META_BG         0x0010
++#define EXT2_FEATURE_INCOMPAT_WHITEOUT                0x0020
+ #define EXT2_FEATURE_INCOMPAT_ANY             0xffffffff
+ 
+ #define EXT2_FEATURE_COMPAT_SUPP      EXT2_FEATURE_COMPAT_EXT_ATTR
+ #define EXT2_FEATURE_INCOMPAT_SUPP    (EXT2_FEATURE_INCOMPAT_FILETYPE| \
++                                       EXT2_FEATURE_INCOMPAT_WHITEOUT| \
+                                        EXT2_FEATURE_INCOMPAT_META_BG)
+ #define EXT2_FEATURE_RO_COMPAT_SUPP   (EXT2_FEATURE_RO_COMPAT_SPARSE_SUPER| \
+                                        EXT2_FEATURE_RO_COMPAT_LARGE_FILE| \
+@@ -573,6 +576,8 @@ enum {
+       EXT2_FT_FIFO,
+       EXT2_FT_SOCK,
+       EXT2_FT_SYMLINK,
++      EXT2_FT_WHT,
++      EXT2_FT_FALLTHRU,
+       EXT2_FT_MAX
+ };
+ 
+--- a/include/linux/fs.h
++++ b/include/linux/fs.h
+@@ -188,6 +188,7 @@ struct inodes_stat_t {
+ #define MS_REMOUNT    32      /* Alter flags of a mounted FS */
+ #define MS_MANDLOCK   64      /* Allow mandatory locks on an FS */
+ #define MS_DIRSYNC    128     /* Directory modifications are synchronous */
++#define MS_UNION      256
+ #define MS_NOATIME    1024    /* Do not update access times. */
+ #define MS_NODIRATIME 2048    /* Do not update directory access times */
+ #define MS_BIND               4096
+@@ -205,6 +206,7 @@ struct inodes_stat_t {
+ #define MS_KERNMOUNT  (1<<22) /* this is a kern_mount call */
+ #define MS_I_VERSION  (1<<23) /* Update inode I_version field */
+ #define MS_STRICTATIME        (1<<24) /* Always perform atime updates */
++#define MS_WHITEOUT   (1<<26) /* fs does support white-out filetype */
+ #define MS_ACTIVE     (1<<30)
+ #define MS_NOUSER     (1<<31)
+ 
+@@ -231,6 +233,7 @@ struct inodes_stat_t {
+ #define S_NOCMTIME    128     /* Do not update file c/mtime */
+ #define S_SWAPFILE    256     /* Do not truncate: swapon got its bmaps */
+ #define S_PRIVATE     512     /* Inode is fs-internal */
++#define S_OPAQUE      1024    /* Directory is opaque */
+ 
+ /*
+  * Note that nosuid etc flags are inode-specific: setting some file-system
+@@ -266,6 +269,8 @@ struct inodes_stat_t {
+ #define IS_SWAPFILE(inode)    ((inode)->i_flags & S_SWAPFILE)
+ #define IS_PRIVATE(inode)     ((inode)->i_flags & S_PRIVATE)
+ 
++#define IS_OPAQUE(inode)      ((inode)->i_flags & S_OPAQUE)
++
+ /* the read-only stuff doesn't really belong here, but any other place is
+    probably as bad and I don't want to create yet another include file. */
+ 
+@@ -1380,6 +1385,11 @@ struct super_block {
+        * generic_show_options()
+        */
+       char *s_options;
++
++      /*
++       * Users who require read-only access - e.g., union mounts
++       */
++      int s_readonly_users;
+ };
+ 
+ extern struct timespec current_fs_time(struct super_block *sb);
+@@ -1517,6 +1527,8 @@ struct inode_operations {
+       int (*mkdir) (struct inode *,struct dentry *,int);
+       int (*rmdir) (struct inode *,struct dentry *);
+       int (*mknod) (struct inode *,struct dentry *,int,dev_t);
++      int (*whiteout) (struct inode *, struct dentry *, struct dentry *);
++      int (*fallthru) (struct inode *, struct dentry *);
+       int (*rename) (struct inode *, struct dentry *,
+                       struct inode *, struct dentry *);
+       int (*readlink) (struct dentry *, char __user *,int);
+@@ -2108,6 +2120,7 @@ extern void emergency_remount(void);
+ extern sector_t bmap(struct inode *, sector_t);
+ #endif
+ extern int notify_change(struct dentry *, struct iattr *);
++extern int __inode_permission(struct inode *inode, int mask, int rofs);
+ extern int inode_permission(struct inode *, int);
+ extern int generic_permission(struct inode *, int,
+               int (*check_acl)(struct inode *, int));
+@@ -2135,7 +2148,7 @@ extern void free_write_pipe(struct file 
+ 
+ extern struct file *do_filp_open(int dfd, const char *pathname,
+               int open_flag, int mode, int acc_mode);
+-extern int may_open(struct path *, int, int);
++extern int may_open(struct nameidata *, int, int);
+ 
+ extern int kernel_read(struct file *, loff_t, char *, unsigned long);
+ extern struct file * open_exec(const char *);
+--- a/include/linux/mount.h
++++ b/include/linux/mount.h
+@@ -35,6 +35,7 @@ struct mnt_namespace;
+ #define MNT_SHARED    0x1000  /* if the vfsmount is a shared mount */
+ #define MNT_UNBINDABLE        0x2000  /* if the vfsmount is a unbindable mount */
+ #define MNT_PNODE_MASK        0x3000  /* propagation flag mask */
++#define MNT_UNION     0x4000  /* if the vfsmount is a union mount */
+ 
+ struct vfsmount {
+       struct list_head mnt_hash;
+@@ -53,6 +54,9 @@ struct vfsmount {
+       struct list_head mnt_slave_list;/* list of slave mounts */
+       struct list_head mnt_slave;     /* slave list entry */
+       struct vfsmount *mnt_master;    /* slave is on master->mnt_slave_list */
++#ifdef CONFIG_UNION_MOUNT
++      struct list_head mnt_unions;    /* list of union_mount structures */
++#endif
+       struct mnt_namespace *mnt_ns;   /* containing namespace */
+       int mnt_id;                     /* mount identifier */
+       int mnt_group_id;               /* peer group identifier */
+--- a/include/linux/namei.h
++++ b/include/linux/namei.h
+@@ -20,6 +20,7 @@ struct nameidata {
+       struct qstr     last;
+       struct path     root;
+       unsigned int    flags;
++      unsigned int    um_flags;
+       int             last_type;
+       unsigned        depth;
+       char *saved_names[MAX_NESTED_LINKS + 1];
+@@ -35,6 +36,9 @@ struct nameidata {
+  */
+ enum {LAST_NORM, LAST_ROOT, LAST_DOT, LAST_DOTDOT, LAST_BIND};
+ 
++#define LAST_UNION             0x01
++#define LAST_LOWLEVEL          0x02
++
+ /*
+  * The bitmask for a lookup event:
+  *  - follow links at the end
+@@ -49,6 +53,8 @@ enum {LAST_NORM, LAST_ROOT, LAST_DOT, LA
+ #define LOOKUP_CONTINUE                4
+ #define LOOKUP_PARENT         16
+ #define LOOKUP_REVAL          64
++#define LOOKUP_TOPMOST               128
++
+ /*
+  * Intent data
+  */
+--- /dev/null
++++ b/include/linux/union.h
+@@ -0,0 +1,84 @@
++/*
++ * VFS based union mount for Linux
++ *
++ * Copyright (C) 2004-2007 IBM Corporation, IBM Deutschland Entwicklung GmbH.
++ * Copyright (C) 2007 Novell Inc.
++ *   Author(s): Jan Blunck (j.blunck@tu-harburg.de)
++ *
++ * 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 __LINUX_UNION_H
++#define __LINUX_UNION_H
++#ifdef __KERNEL__
++
++#include <linux/list.h>
++#include <asm/atomic.h>
++
++struct dentry;
++struct vfsmount;
++
++#ifdef CONFIG_UNION_MOUNT
++
++/*
++ * The new union mount structure.
++ */
++struct union_mount {
++      atomic_t u_count;               /* reference count */
++      struct mutex u_mutex;
++      struct list_head u_unions;      /* list head for d_unions */
++      struct list_head u_list;        /* list head for mnt_unions */
++      struct hlist_node u_hash;       /* list head for seaching */
++      struct hlist_node u_rhash;      /* list head for reverse seaching */
++
++      struct path u_this;             /* this is me */
++      struct path u_next;             /* this is what I overlay */
++};
++
++#define IS_UNION(dentry)      (!list_empty(&(dentry)->d_unions) || \
++                               (dentry)->d_unionized)
++#define IS_MNT_UNION(mnt)     ((mnt)->mnt_flags & MNT_UNION)
++
++extern int is_unionized(struct dentry *, struct vfsmount *);
++extern int append_to_union(struct vfsmount *, struct dentry *,
++                         struct vfsmount *, struct dentry *);
++extern int follow_union_down(struct path *);
++extern int follow_union_mount(struct path *);
++extern void __d_drop_unions(struct dentry *);
++extern void shrink_d_unions(struct dentry *);
++extern void __shrink_d_unions(struct dentry *, struct list_head *);
++extern int attach_mnt_union(struct vfsmount *, struct vfsmount *,
++                          struct dentry *);
++extern void detach_mnt_union(struct vfsmount *);
++extern struct dentry *union_create_topmost(struct nameidata *, struct qstr *,
++                                         struct path *);
++extern int __union_copyup(struct path *, struct nameidata *, struct path *);
++extern int union_copyup(struct nameidata *, int);
++extern int union_copyup_dir(struct path *path);
++extern int union_permission(struct path *, int);
++
++#else /* CONFIG_UNION_MOUNT */
++
++#define IS_UNION(x)                   (0)
++#define IS_MNT_UNION(x)                       (0)
++#define is_unionized(x, y)            (0)
++#define append_to_union(x1, y1, x2, y2)       ({ BUG(); (0); })
++#define follow_union_down(x)          ({ (0); })
++#define follow_union_mount(x) ({ (0); })
++#define __d_drop_unions(x)            do { } while (0)
++#define shrink_d_unions(x)            do { } while (0)
++#define __shrink_d_unions(x,y)                do { } while (0)
++#define attach_mnt_union(x, y, z)     do { } while (0)
++#define detach_mnt_union(x)           do { } while (0)
++#define union_create_topmost(x, y, z) ({ BUG(); (NULL); })
++#define __union_copyup(x, y, z)               ({ BUG(); (0); })
++#define union_copyup(x, y)            ({ (0); })
++#define union_copyup_dir(x)           ({ BUG(); (0); })
++#define union_permission(x, y)                inode_permission(x->dentry->d_inode, y)
++
++#endif        /* CONFIG_UNION_MOUNT */
++#endif        /* __KERNEL__ */
++#endif        /* __LINUX_UNION_H */
+--- a/mm/shmem.c
++++ b/mm/shmem.c
+@@ -1798,6 +1798,118 @@ static int shmem_statfs(struct dentry *d
+       return 0;
+ }
+ 
++static int shmem_rmdir(struct inode *dir, struct dentry *dentry);
++static int shmem_unlink(struct inode *dir, struct dentry *dentry);
++
++/*
++ * Create a dentry to signify a whiteout.
++ */
++static int shmem_whiteout(struct inode *dir, struct dentry *old_dentry,
++                        struct dentry *new_dentry)
++{
++      struct shmem_sb_info *sbinfo = SHMEM_SB(dir->i_sb);
++      struct dentry *dentry;
++
++      if (!(dir->i_sb->s_flags & MS_WHITEOUT))
++              return -EPERM;
++
++      /* This gives us a proper initialized negative dentry */
++      dentry = simple_lookup(dir, new_dentry, NULL);
++      if (dentry && IS_ERR(dentry))
++              return PTR_ERR(dentry);
++
++      /*
++       * No ordinary (disk based) filesystem counts whiteouts as inodes;
++       * but each new link needs a new dentry, pinning lowmem, and
++       * tmpfs dentries cannot be pruned until they are unlinked.
++       */
++      if (sbinfo->max_inodes) {
++              spin_lock(&sbinfo->stat_lock);
++              if (!sbinfo->free_inodes) {
++                      spin_unlock(&sbinfo->stat_lock);
++                      return -ENOSPC;
++              }
++              sbinfo->free_inodes--;
++              spin_unlock(&sbinfo->stat_lock);
++      }
++
++      if (old_dentry->d_inode || d_is_fallthru(old_dentry)) {
++              if (old_dentry->d_inode && S_ISDIR(old_dentry->d_inode->i_mode))
++                      shmem_rmdir(dir, old_dentry);
++              else
++                      shmem_unlink(dir, old_dentry);
++      }
++
++      dir->i_size += BOGO_DIRENT_SIZE;
++      dir->i_ctime = dir->i_mtime = CURRENT_TIME;
++      /* Extra pinning count for the created dentry */
++      dget(new_dentry);
++      spin_lock(&new_dentry->d_lock);
++      new_dentry->d_flags |= DCACHE_WHITEOUT;
++      spin_unlock(&new_dentry->d_lock);
++      return 0;
++}
++
++static void shmem_d_instantiate(struct inode *dir, struct dentry *dentry,
++                              struct inode *inode);
++
++/*
++ * Create a dentry to signify a fallthru.  A fallthru lets us read the
++ * low-level dentries into the dcache once on the first readdir() and
++ * then
++ */
++static int shmem_fallthru(struct inode *dir, struct dentry *dentry)
++{
++      struct shmem_sb_info *sbinfo = SHMEM_SB(dir->i_sb);
++
++      /* FIXME: this is stupid */
++      if (!(dir->i_sb->s_flags & MS_WHITEOUT))
++              return -EPERM;
++
++      if (dentry->d_inode || d_is_fallthru(dentry) || d_is_whiteout(dentry))
++              return -EEXIST;
++
++      /*
++       * Each new link needs a new dentry, pinning lowmem, and tmpfs
++       * dentries cannot be pruned until they are unlinked.
++       */
++      if (sbinfo->max_inodes) {
++              spin_lock(&sbinfo->stat_lock);
++              if (!sbinfo->free_inodes) {
++                      spin_unlock(&sbinfo->stat_lock);
++                      return -ENOSPC;
++              }
++              sbinfo->free_inodes--;
++              spin_unlock(&sbinfo->stat_lock);
++      }
++
++      shmem_d_instantiate(dir, dentry, NULL);
++      dir->i_ctime = dir->i_mtime = CURRENT_TIME;
++
++      spin_lock(&dentry->d_lock);
++      dentry->d_flags |= DCACHE_FALLTHRU;
++      spin_unlock(&dentry->d_lock);
++      return 0;
++}
++
++static void shmem_d_instantiate(struct inode *dir, struct dentry *dentry,
++                              struct inode *inode)
++{
++      if (d_is_whiteout(dentry)) {
++              /* Re-using an existing whiteout */
++              shmem_free_inode(dir->i_sb);
++              if (S_ISDIR(inode->i_mode))
++                      inode->i_mode |= S_OPAQUE;
++      } else if (d_is_fallthru(dentry)) {
++              shmem_free_inode(dir->i_sb);
++      } else {
++              /* New dentry */
++              dir->i_size += BOGO_DIRENT_SIZE;
++              dget(dentry); /* Extra count - pin the dentry in core */
++      }
++      /* Will clear DCACHE_WHITEOUT and DCACHE_FALLTHRU flags */
++      d_instantiate(dentry, inode);
++}
+ /*
+  * File creation. Allocate an inode, and we're done..
+  */
+@@ -1822,15 +1934,16 @@ shmem_mknod(struct inode *dir, struct de
+                       iput(inode);
+                       return error;
+               }
++
+               if (dir->i_mode & S_ISGID) {
+                       inode->i_gid = dir->i_gid;
+                       if (S_ISDIR(mode))
+                               inode->i_mode |= S_ISGID;
+               }
+-              dir->i_size += BOGO_DIRENT_SIZE;
++
++              shmem_d_instantiate(dir, dentry, inode);
++
+               dir->i_ctime = dir->i_mtime = CURRENT_TIME;
+-              d_instantiate(dentry, inode);
+-              dget(dentry); /* Extra count - pin the dentry in core */
+       }
+       return error;
+ }
+@@ -1868,12 +1981,11 @@ static int shmem_link(struct dentry *old
+       if (ret)
+               goto out;
+ 
+-      dir->i_size += BOGO_DIRENT_SIZE;
++      shmem_d_instantiate(dir, dentry, inode);
++
+       inode->i_ctime = dir->i_ctime = dir->i_mtime = CURRENT_TIME;
+       inc_nlink(inode);
+       atomic_inc(&inode->i_count);    /* New dentry reference */
+-      dget(dentry);           /* Extra pinning count for the created dentry */
+-      d_instantiate(dentry, inode);
+ out:
+       return ret;
+ }
+@@ -1882,21 +1994,63 @@ static int shmem_unlink(struct inode *di
+ {
+       struct inode *inode = dentry->d_inode;
+ 
+-      if (inode->i_nlink > 1 && !S_ISDIR(inode->i_mode))
+-              shmem_free_inode(inode->i_sb);
++      if (d_is_whiteout(dentry) || d_is_fallthru(dentry) ||
++          (inode->i_nlink > 1 && !S_ISDIR(inode->i_mode)))
++              shmem_free_inode(dir->i_sb);
+ 
++      if (inode) {
++              inode->i_ctime = dir->i_ctime = dir->i_mtime = CURRENT_TIME;
++              drop_nlink(inode);
++      }
+       dir->i_size -= BOGO_DIRENT_SIZE;
+-      inode->i_ctime = dir->i_ctime = dir->i_mtime = CURRENT_TIME;
+-      drop_nlink(inode);
+       dput(dentry);   /* Undo the count from "create" - this does all the work */
+       return 0;
+ }
+ 
++static void shmem_dir_unlink_whiteouts(struct inode *dir, struct dentry *dentry)
++{
++      if (!dentry->d_inode)
++              return;
++
++      /* Remove whiteouts from logical empty directory */
++      if (S_ISDIR(dentry->d_inode->i_mode) &&
++          dentry->d_inode->i_sb->s_flags & MS_WHITEOUT) {
++              struct dentry *child, *next;
++              LIST_HEAD(list);
++
++              spin_lock(&dcache_lock);
++              list_for_each_entry(child, &dentry->d_subdirs, d_u.d_child) {
++                      spin_lock(&child->d_lock);
++                      /* Unlink fallthrus too */
++                      if (d_is_whiteout(child) || d_is_fallthru(child)) {
++                              __d_drop(child);
++                              if (!list_empty(&child->d_lru)) {
++                                      list_del(&child->d_lru);
++                                      dentry_stat.nr_unused--;
++                              }
++                              list_add(&child->d_lru, &list);
++                      }
++                      spin_unlock(&child->d_lock);
++              }
++              spin_unlock(&dcache_lock);
++
++              list_for_each_entry_safe(child, next, &list, d_lru) {
++                      spin_lock(&child->d_lock);
++                      list_del_init(&child->d_lru);
++                      spin_unlock(&child->d_lock);
++
++                      shmem_unlink(dentry->d_inode, child);
++              }
++      }
++}
++
+ static int shmem_rmdir(struct inode *dir, struct dentry *dentry)
+ {
+       if (!simple_empty(dentry))
+               return -ENOTEMPTY;
+ 
++      /* Remove whiteouts from logical empty directory */
++      shmem_dir_unlink_whiteouts(dir, dentry);
+       drop_nlink(dentry->d_inode);
+       drop_nlink(dir);
+       return shmem_unlink(dir, dentry);
+@@ -1905,7 +2059,7 @@ static int shmem_rmdir(struct inode *dir
+ /*
+  * The VFS layer already does all the dentry stuff for rename,
+  * we just have to decrement the usage count for the target if
+- * it exists so that the VFS layer correctly free's it when it
++ * it exists so that the VFS layer correctly frees it when it
+  * gets overwritten.
+  */
+ static int shmem_rename(struct inode *old_dir, struct dentry *old_dentry, struct inode *new_dir, struct dentry *new_dentry)
+@@ -1916,7 +2070,12 @@ static int shmem_rename(struct inode *ol
+       if (!simple_empty(new_dentry))
+               return -ENOTEMPTY;
+ 
++      if (d_is_whiteout(new_dentry))
++              shmem_unlink(new_dir, new_dentry);
++
+       if (new_dentry->d_inode) {
++              /* Remove whiteouts from logical empty directory */
++              shmem_dir_unlink_whiteouts(new_dir, new_dentry);
+               (void) shmem_unlink(new_dir, new_dentry);
+               if (they_are_dirs)
+                       drop_nlink(old_dir);
+@@ -1981,12 +2140,12 @@ static int shmem_symlink(struct inode *d
+               unlock_page(page);
+               page_cache_release(page);
+       }
++
++      shmem_d_instantiate(dir, dentry, inode);
++
+       if (dir->i_mode & S_ISGID)
+               inode->i_gid = dir->i_gid;
+-      dir->i_size += BOGO_DIRENT_SIZE;
+       dir->i_ctime = dir->i_mtime = CURRENT_TIME;
+-      d_instantiate(dentry, inode);
+-      dget(dentry);
+       return 0;
+ }
+ 
+@@ -2363,6 +2522,12 @@ int shmem_fill_super(struct super_block 
+       if (!root)
+               goto failed_iput;
+       sb->s_root = root;
++
++#ifdef CONFIG_TMPFS
++      if (!(sb->s_flags & MS_NOUSER))
++              sb->s_flags |= MS_WHITEOUT;
++#endif
++
+       return 0;
+ 
+ failed_iput:
+@@ -2463,6 +2628,8 @@ static const struct inode_operations shm
+       .rmdir          = shmem_rmdir,
+       .mknod          = shmem_mknod,
+       .rename         = shmem_rename,
++      .whiteout       = shmem_whiteout,
++      .fallthru       = shmem_fallthru,
+ #endif
+ #ifdef CONFIG_TMPFS_POSIX_ACL
+       .setattr        = shmem_notify_change,

diff --git a/target/linux/generic-2.6/patches-2.6.32/231-union_mounts_bind_fix.patch b/target/linux/generic-2.6/patches-2.6.32/231-union_mounts_bind_fix.patch
new file mode 100644 (file)
index 0000000..4bd3f73
--- /dev/null
+++ b/target/linux/generic-2.6/patches-2.6.32/231-union_mounts_bind_fix.patch
@@ -0,0 +1,11 @@
+--- a/fs/namespace.c
++++ b/fs/namespace.c
+@@ -1550,7 +1550,7 @@ static int do_loopback(struct path *path
+       if (!mnt)
+               goto out;
+ 
+-      err = check_union_mnt(&old_path, mnt, mnt_flags);
++      err = check_union_mnt(path, mnt, mnt_flags);
+       if (err)
+               goto out;
+ 

diff --git a/target/linux/generic-2.6/patches-2.6.32/232-union_mounts_compile_fix.patch b/target/linux/generic-2.6/patches-2.6.32/232-union_mounts_compile_fix.patch
new file mode 100644 (file)
index 0000000..b20b845
--- /dev/null
+++ b/target/linux/generic-2.6/patches-2.6.32/232-union_mounts_compile_fix.patch
@@ -0,0 +1,11 @@
+--- a/include/linux/union.h
++++ b/include/linux/union.h
+@@ -77,7 +77,7 @@ extern int union_permission(struct path 
+ #define __union_copyup(x, y, z)               ({ BUG(); (0); })
+ #define union_copyup(x, y)            ({ (0); })
+ #define union_copyup_dir(x)           ({ BUG(); (0); })
+-#define union_permission(x, y)                inode_permission(x->dentry->d_inode, y)
++#define union_permission(x, y)                inode_permission((x)->dentry->d_inode, y)
+ 
+ #endif        /* CONFIG_UNION_MOUNT */
+ #endif        /* __KERNEL__ */

diff --git a/target/linux/generic-2.6/patches-2.6.32/233-jffs2_whiteout_support.patch b/target/linux/generic-2.6/patches-2.6.32/233-jffs2_whiteout_support.patch
new file mode 100644 (file)
index 0000000..6583ac3
--- /dev/null
+++ b/target/linux/generic-2.6/patches-2.6.32/233-jffs2_whiteout_support.patch
@@ -0,0 +1,186 @@
+--- a/fs/jffs2/dir.c
++++ b/fs/jffs2/dir.c
+@@ -34,6 +34,9 @@ static int jffs2_mknod (struct inode *,s
+ static int jffs2_rename (struct inode *, struct dentry *,
+                        struct inode *, struct dentry *);
+ 
++static int jffs2_whiteout (struct inode *, struct dentry *, struct dentry *);
++static int jffs2_fallthru (struct inode *, struct dentry *);
++
+ const struct file_operations jffs2_dir_operations =
+ {
+       .read =         generic_read_dir,
+@@ -55,6 +58,8 @@ const struct inode_operations jffs2_dir_
+       .rmdir =        jffs2_rmdir,
+       .mknod =        jffs2_mknod,
+       .rename =       jffs2_rename,
++      .fallthru =     jffs2_fallthru,
++      .whiteout =     jffs2_whiteout,
+       .check_acl =    jffs2_check_acl,
+       .setattr =      jffs2_setattr,
+       .setxattr =     jffs2_setxattr,
+@@ -98,8 +103,21 @@ static struct dentry *jffs2_lookup(struc
+                       fd = fd_list;
+               }
+       }
+-      if (fd)
+-              ino = fd->ino;
++      if (fd) {
++              spin_lock(&target->d_lock);
++              switch(fd->type) {
++              case DT_WHT:
++                      target->d_flags |= DCACHE_WHITEOUT;
++                      break;
++              case DT_UNKNOWN:
++                      target->d_flags |= DCACHE_FALLTHRU;
++                      break;
++              default:
++                      ino = fd->ino;
++                      break;
++              }
++              spin_unlock(&target->d_lock);
++      }
+       mutex_unlock(&dir_f->sem);
+       if (ino) {
+               inode = jffs2_iget(dir_i->i_sb, ino);
+@@ -155,7 +173,9 @@ static int jffs2_readdir(struct file *fi
+                                 fd->name, fd->ino, fd->type, curofs, offset));
+                       continue;
+               }
+-              if (!fd->ino) {
++              if (fd->type == DT_UNKNOWN)
++                      fd->ino = 100; /* XXX: arbitrary */
++              else if (!fd->ino && (fd->type != DT_WHT)) {
+                       D2(printk(KERN_DEBUG "Skipping deletion dirent \"%s\"\n", fd->name));
+                       offset++;
+                       continue;
+@@ -498,6 +518,11 @@ static int jffs2_mkdir (struct inode *di
+               return PTR_ERR(inode);
+       }
+ 
++      if (dentry->d_flags & DCACHE_WHITEOUT) {
++              inode->i_flags |= S_OPAQUE;
++              ri->flags = cpu_to_je16(JFFS2_INO_FLAG_OPAQUE);
++      }
++
+       inode->i_op = &jffs2_dir_inode_operations;
+       inode->i_fop = &jffs2_dir_operations;
+ 
+@@ -779,6 +804,82 @@ static int jffs2_mknod (struct inode *di
+       return 0;
+ }
+ 
++static int jffs2_fallthru (struct inode *dir, struct dentry *dentry)
++{
++      struct jffs2_sb_info *c = JFFS2_SB_INFO(dir->i_sb);
++      uint32_t now;
++      int ret;
++
++      now = get_seconds();
++      ret = jffs2_do_link(c, JFFS2_INODE_INFO(dir), 0, DT_UNKNOWN,
++                          dentry->d_name.name, dentry->d_name.len, now);
++      if (ret)
++              return ret;
++
++      d_instantiate(dentry, NULL);
++      spin_lock(&dentry->d_lock);
++      dentry->d_flags |= DCACHE_FALLTHRU;
++      spin_unlock(&dentry->d_lock);
++
++      return 0;
++}
++
++static int jffs2_whiteout (struct inode *dir, struct dentry *old_dentry,
++                         struct dentry *new_dentry)
++{
++      struct jffs2_sb_info *c = JFFS2_SB_INFO(dir->i_sb);
++      struct jffs2_inode_info *victim_f = NULL;
++      uint32_t now;
++      int ret;
++
++      /* If it's a directory, then check whether it is really empty
++       */
++      if (new_dentry->d_inode) {
++              victim_f = JFFS2_INODE_INFO(old_dentry->d_inode);
++              if (S_ISDIR(old_dentry->d_inode->i_mode)) {
++                      struct jffs2_full_dirent *fd;
++
++                      mutex_lock(&victim_f->sem);
++                      for (fd = victim_f->dents; fd; fd = fd->next) {
++                              if (fd->ino) {
++                                      mutex_unlock(&victim_f->sem);
++                                      return -ENOTEMPTY;
++                              }
++                      }
++                      mutex_unlock(&victim_f->sem);
++              }
++      }
++
++      now = get_seconds();
++      ret = jffs2_do_link(c, JFFS2_INODE_INFO(dir), 0, DT_WHT,
++                          new_dentry->d_name.name, new_dentry->d_name.len, now);
++      if (ret)
++              return ret;
++
++      spin_lock(&new_dentry->d_lock);
++      new_dentry->d_flags &= ~DCACHE_FALLTHRU;
++      new_dentry->d_flags |= DCACHE_WHITEOUT;
++      spin_unlock(&new_dentry->d_lock);
++      d_add(new_dentry, NULL);
++
++      if (victim_f) {
++              /* There was a victim. Kill it off nicely */
++              drop_nlink(old_dentry->d_inode);
++              /* Don't oops if the victim was a dirent pointing to an
++                 inode which didn't exist. */
++              if (victim_f->inocache) {
++                      mutex_lock(&victim_f->sem);
++                      if (S_ISDIR(old_dentry->d_inode->i_mode))
++                              victim_f->inocache->pino_nlink = 0;
++                      else
++                              victim_f->inocache->pino_nlink--;
++                      mutex_unlock(&victim_f->sem);
++              }
++      }
++
++      return 0;
++}
++
+ static int jffs2_rename (struct inode *old_dir_i, struct dentry *old_dentry,
+                        struct inode *new_dir_i, struct dentry *new_dentry)
+ {
+--- a/fs/jffs2/fs.c
++++ b/fs/jffs2/fs.c
+@@ -301,6 +301,10 @@ struct inode *jffs2_iget(struct super_bl
+ 
+               inode->i_op = &jffs2_dir_inode_operations;
+               inode->i_fop = &jffs2_dir_operations;
++
++              if (je16_to_cpu(latest_node.flags) & JFFS2_INO_FLAG_OPAQUE)
++                      inode->i_flags |= S_OPAQUE;
++
+               break;
+       }
+       case S_IFREG:
+--- a/fs/jffs2/super.c
++++ b/fs/jffs2/super.c
+@@ -172,7 +172,7 @@ static int jffs2_fill_super(struct super
+ 
+       sb->s_op = &jffs2_super_operations;
+       sb->s_export_op = &jffs2_export_ops;
+-      sb->s_flags = sb->s_flags | MS_NOATIME;
++      sb->s_flags = sb->s_flags | MS_NOATIME | MS_WHITEOUT;
+       sb->s_xattr = jffs2_xattr_handlers;
+ #ifdef CONFIG_JFFS2_FS_POSIX_ACL
+       sb->s_flags |= MS_POSIXACL;
+--- a/include/linux/jffs2.h
++++ b/include/linux/jffs2.h
+@@ -87,6 +87,8 @@
+ #define JFFS2_INO_FLAG_USERCOMPR  2   /* User has requested a specific
+                                          compression type */
+ 
++#define JFFS2_INO_FLAG_OPAQUE     4   /* Directory is opaque (for union mounts) */
++
+ 
+ /* These can go once we've made sure we've caught all uses without
+    byteswapping */

diff --git a/target/linux/generic-2.6/patches-2.6.32/234-union_mounts_no_debug.patch b/target/linux/generic-2.6/patches-2.6.32/234-union_mounts_no_debug.patch
new file mode 100644 (file)
index 0000000..deabd43
--- /dev/null
+++ b/target/linux/generic-2.6/patches-2.6.32/234-union_mounts_no_debug.patch
@@ -0,0 +1,30 @@
+--- a/fs/union.c
++++ b/fs/union.c
+@@ -842,10 +842,8 @@ static int union_copyup_dir_one(void *bu
+       /* Lookup this entry in the topmost directory */
+       dentry = lookup_one_len(name, topmost_dentry, namlen);
+ 
+-      if (IS_ERR(dentry)) {
+-              printk(KERN_INFO "error looking up %s\n", dentry->d_name.name);
++      if (IS_ERR(dentry))
+               goto out;
+-      }
+ 
+       /*
+        * If the entry already exists, one of the following is true:
+@@ -857,7 +855,6 @@ static int union_copyup_dir_one(void *bu
+        */
+       if (dentry->d_inode || d_is_whiteout(dentry) ||
+           d_is_fallthru(dentry)) {
+-              printk(KERN_INFO "skipping copy of %s\n", dentry->d_name.name);
+               goto out_dput;
+       }
+ 
+@@ -867,7 +864,6 @@ static int union_copyup_dir_one(void *bu
+        * used, so each file system must implement its own way of
+        * storing a fallthru entry.
+        */
+-      printk(KERN_INFO "creating fallthru for %s\n", dentry->d_name.name);
+       err = topmost_dentry->d_inode->i_op->fallthru(topmost_dentry->d_inode,
+                                                     dentry);
+       /* FIXME */

diff --git a/target/linux/generic-2.6/patches-2.6.32/235-union_mount_fixes.patch b/target/linux/generic-2.6/patches-2.6.32/235-union_mount_fixes.patch
new file mode 100644 (file)
index 0000000..ff1fba0
--- /dev/null
+++ b/target/linux/generic-2.6/patches-2.6.32/235-union_mount_fixes.patch
@@ -0,0 +1,117 @@
+--- a/fs/namespace.c
++++ b/fs/namespace.c
+@@ -1656,8 +1656,10 @@ static int do_move_mount(struct path *pa
+ 
+       /* moving to or from a union mount is not supported */
+       err = -EINVAL;
++#if 0
+       if (IS_MNT_UNION(path->mnt))
+               goto exit;
++#endif
+       if (IS_MNT_UNION(old_path.mnt))
+               goto exit;
+ 
+--- a/fs/union.c
++++ b/fs/union.c
+@@ -260,8 +260,6 @@ int append_to_union(struct vfsmount *mnt
+       spin_lock(&union_lock);
+       um = union_lookup(dentry, mnt);
+       if (um) {
+-              BUG_ON((um->u_next.dentry != dest_dentry) ||
+-                     (um->u_next.mnt != dest_mnt));
+               spin_unlock(&union_lock);
+               union_put(this);
+               return 0;
+@@ -274,6 +272,23 @@ int append_to_union(struct vfsmount *mnt
+       return 0;
+ }
+ 
++int follow_union_mountpoint(struct path *path)
++{
++      struct path new_path = *path;
++
++      path_get(&new_path);
++      while (follow_union_down(&new_path)) {
++              if (new_path.dentry != new_path.mnt->mnt_root)
++                      continue;
++
++              path_put(path);
++              *path = new_path;
++              return 1;
++      }
++      path_put(&new_path);
++      return 0;
++}
++
+ /*
+  * follow_union_down - follow the union stack one layer down
+  *
+--- a/include/linux/union.h
++++ b/include/linux/union.h
+@@ -47,6 +47,7 @@ extern int append_to_union(struct vfsmou
+                          struct vfsmount *, struct dentry *);
+ extern int follow_union_down(struct path *);
+ extern int follow_union_mount(struct path *);
++extern int follow_union_mountpoint(struct path *path);
+ extern void __d_drop_unions(struct dentry *);
+ extern void shrink_d_unions(struct dentry *);
+ extern void __shrink_d_unions(struct dentry *, struct list_head *);
+@@ -68,6 +69,7 @@ extern int union_permission(struct path 
+ #define append_to_union(x1, y1, x2, y2)       ({ BUG(); (0); })
+ #define follow_union_down(x)          ({ (0); })
+ #define follow_union_mount(x) ({ (0); })
++#define follow_union_mountpoint(x)    ({ (0); })
+ #define __d_drop_unions(x)            do { } while (0)
+ #define shrink_d_unions(x)            do { } while (0)
+ #define __shrink_d_unions(x,y)                do { } while (0)
+--- a/fs/namei.c
++++ b/fs/namei.c
+@@ -626,6 +626,9 @@ static int cache_lookup_union(struct nam
+                   !S_ISDIR(path->dentry->d_inode->i_mode))
+                       goto out;
+ 
++              if (follow_union_mountpoint(path))
++                      goto out;
++
+               /* Build the union stack for this part */
+               res = __cache_lookup_build_union(nd, name, path);
+               if (res) {
+@@ -892,6 +895,9 @@ static int real_lookup_union(struct name
+           !S_ISDIR(path->dentry->d_inode->i_mode))
+               goto out;
+ 
++      if (follow_union_mountpoint(path))
++              goto out;
++
+       /* Build the union stack for this part */
+       res = __real_lookup_build_union(nd, name, path);
+       if (res) {
+@@ -1813,6 +1819,9 @@ int hash_lookup_union(struct nameidata *
+           !S_ISDIR(path->dentry->d_inode->i_mode))
+               goto out;
+ 
++      if (follow_union_mountpoint(path))
++              goto out;
++
+       /* Build the union stack for this part */
+       res = __hash_lookup_build_union(nd, name, path);
+       if (res) {
+--- a/fs/readdir.c
++++ b/fs/readdir.c
+@@ -17,6 +17,7 @@
+ #include <linux/syscalls.h>
+ #include <linux/unistd.h>
+ #include <linux/union.h>
++#include <linux/mount.h>
+ 
+ #include <asm/uaccess.h>
+ 
+@@ -45,7 +46,7 @@ int vfs_readdir(struct file *file, filld
+                * below this one in the union stack.
+                */
+               if (is_unionized(file->f_path.dentry, file->f_path.mnt) &&
+-                  !IS_OPAQUE(inode)) {
++                  !IS_OPAQUE(inode) && IS_MNT_UNION(file->f_path.mnt)) {
+                       res = union_copyup_dir(&file->f_path);
+                       if (res)
+                               goto out_unlock;

diff --git a/target/linux/generic-2.6/patches-2.6.32/240-packet_socket_type.patch b/target/linux/generic-2.6/patches-2.6.32/240-packet_socket_type.patch
new file mode 100644 (file)
index 0000000..42fcb93
--- /dev/null
+++ b/target/linux/generic-2.6/patches-2.6.32/240-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 <nbd@openwrt.org>
+
+--- a/include/linux/if_packet.h
++++ b/include/linux/if_packet.h
+@@ -31,6 +31,8 @@ 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 */
+ 
+@@ -48,6 +50,7 @@ struct sockaddr_ll
+ #define PACKET_RESERVE                        12
+ #define PACKET_TX_RING                        13
+ #define PACKET_LOSS                   14
++#define PACKET_RECV_TYPE              15
+ 
+ struct tpacket_stats
+ {
+--- a/net/packet/af_packet.c
++++ b/net/packet/af_packet.c
+@@ -204,6 +204,7 @@ struct packet_sock {
+       unsigned int            tp_reserve;
+       unsigned int            tp_loss:1;
+ #endif
++      unsigned int            pkt_type;
+ };
+ 
+ struct packet_skb_cb {
+@@ -342,6 +343,7 @@ 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
+@@ -349,6 +351,7 @@ 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
+@@ -361,7 +364,7 @@ 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 (dev_net(dev) != sock_net(sk))
+@@ -545,12 +548,12 @@ 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 (dev_net(dev) != sock_net(sk))
+               goto drop;
+ 
+@@ -667,12 +670,12 @@ static int tpacket_rcv(struct sk_buff *s
+       struct timeval tv;
+       struct timespec ts;
+ 
+-      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 (dev_net(dev) != sock_net(sk))
+               goto drop;
+ 
+@@ -1384,6 +1387,7 @@ 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;
+@@ -1731,6 +1735,16 @@ packet_setsockopt(struct socket *sock, i
+                       ret = packet_mc_drop(sk, &mreq);
+               return ret;
+       }
++      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;
++      }
+ 
+ #ifdef CONFIG_PACKET_MMAP
+       case PACKET_RX_RING:
+@@ -1876,6 +1890,13 @@ 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;
+ #ifdef CONFIG_PACKET_MMAP
+       case PACKET_VERSION:
+               if (len > sizeof(int))

diff --git a/target/linux/generic-2.6/patches-2.6.32/250-pppoe_header_pad.patch b/target/linux/generic-2.6/patches-2.6.32/250-pppoe_header_pad.patch
new file mode 100644 (file)
index 0000000..042546f
--- /dev/null
+++ b/target/linux/generic-2.6/patches-2.6.32/250-pppoe_header_pad.patch
@@ -0,0 +1,20 @@
+--- a/drivers/net/pppoe.c
++++ b/drivers/net/pppoe.c
+@@ -863,7 +863,7 @@ 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;
+@@ -871,7 +871,7 @@ 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-2.6/patches-2.6.32/260-extend_pfifo_fast.patch b/target/linux/generic-2.6/patches-2.6.32/260-extend_pfifo_fast.patch
new file mode 100644 (file)
index 0000000..f306e86
--- /dev/null
+++ b/target/linux/generic-2.6/patches-2.6.32/260-extend_pfifo_fast.patch
@@ -0,0 +1,144 @@
+--- a/net/sched/sch_generic.c
++++ b/net/sched/sch_generic.c
+@@ -391,16 +391,50 @@ static const u8 prio2band[TC_PRIO_MAX+1]
+ 
+ #define PFIFO_FAST_BANDS 3
+ 
++struct pfifo_fast_sched_data {
++      struct tcf_proto *filter_list;
++      struct sk_buff_head list[PFIFO_FAST_BANDS];
++};
++
+ static inline struct sk_buff_head *prio2list(struct sk_buff *skb,
+                                            struct Qdisc *qdisc)
+ {
+-      struct sk_buff_head *list = qdisc_priv(qdisc);
++      struct pfifo_fast_sched_data *q = qdisc_priv(qdisc);
++      struct sk_buff_head *list = q->list;
+       return list + prio2band[skb->priority & TC_PRIO_MAX];
+ }
+ 
++static int pfifo_fast_filter(struct sk_buff *skb, struct Qdisc* qdisc)
++{
++#ifdef CONFIG_NET_CLS_ACT
++      struct pfifo_fast_sched_data *q = qdisc_priv(qdisc);
++      int result = 0, ret = NET_XMIT_SUCCESS | __NET_XMIT_STOLEN;
++      struct tcf_result res;
++
++      if (q->filter_list != NULL)
++              result = tc_classify(skb, q->filter_list, &res);
++      if (result >= 0) {
++              switch (result) {
++              case TC_ACT_STOLEN:
++              case TC_ACT_QUEUED:
++                      ret = NET_XMIT_SUCCESS | __NET_XMIT_STOLEN;
++              case TC_ACT_SHOT:
++                      kfree_skb(skb);
++                      return ret;
++              }
++      }
++#endif
++      return 0;
++}
++
+ static int pfifo_fast_enqueue(struct sk_buff *skb, struct Qdisc* qdisc)
+ {
+       struct sk_buff_head *list = prio2list(skb, qdisc);
++      int ret;
++
++      ret = pfifo_fast_filter(skb, qdisc);
++      if (ret)
++              return ret;
+ 
+       if (skb_queue_len(list) < qdisc_dev(qdisc)->tx_queue_len) {
+               qdisc->q.qlen++;
+@@ -412,8 +446,9 @@ static int pfifo_fast_enqueue(struct sk_
+ 
+ static struct sk_buff *pfifo_fast_dequeue(struct Qdisc* qdisc)
+ {
++      struct pfifo_fast_sched_data *q = qdisc_priv(qdisc);
++      struct sk_buff_head *list = q->list;
+       int prio;
+-      struct sk_buff_head *list = qdisc_priv(qdisc);
+ 
+       for (prio = 0; prio < PFIFO_FAST_BANDS; prio++) {
+               if (!skb_queue_empty(list + prio)) {
+@@ -440,8 +475,9 @@ static struct sk_buff *pfifo_fast_peek(s
+ 
+ static void pfifo_fast_reset(struct Qdisc* qdisc)
+ {
++      struct pfifo_fast_sched_data *q = qdisc_priv(qdisc);
++      struct sk_buff_head *list = q->list;
+       int prio;
+-      struct sk_buff_head *list = qdisc_priv(qdisc);
+ 
+       for (prio = 0; prio < PFIFO_FAST_BANDS; prio++)
+               __qdisc_reset_queue(qdisc, list + prio);
+@@ -464,8 +500,9 @@ nla_put_failure:
+ 
+ static int pfifo_fast_init(struct Qdisc *qdisc, struct nlattr *opt)
+ {
++      struct pfifo_fast_sched_data *q = qdisc_priv(qdisc);
++      struct sk_buff_head *list = q->list;
+       int prio;
+-      struct sk_buff_head *list = qdisc_priv(qdisc);
+ 
+       for (prio = 0; prio < PFIFO_FAST_BANDS; prio++)
+               skb_queue_head_init(list + prio);
+@@ -473,9 +510,36 @@ static int pfifo_fast_init(struct Qdisc 
+       return 0;
+ }
+ 
++static int pfifo_fast_change_class(struct Qdisc *qdisc, u32 classid, u32 parentid,
++                          struct nlattr **tca, unsigned long *arg)
++{
++      return -EOPNOTSUPP;
++}
++
++static unsigned long pfifo_fast_get(struct Qdisc *qdisc, u32 classid)
++{
++      return 0;
++}
++
++static struct tcf_proto **pfifo_fast_find_tcf(struct Qdisc *qdisc, unsigned long cl)
++{
++      struct pfifo_fast_sched_data *q = qdisc_priv(qdisc);
++
++      if (cl)
++              return NULL;
++      return &q->filter_list;
++}
++
++static const struct Qdisc_class_ops pfifo_fast_class_ops = {
++      .get            =       pfifo_fast_get,
++      .change         =       pfifo_fast_change_class,
++      .tcf_chain      =       pfifo_fast_find_tcf,
++};
++
+ static struct Qdisc_ops pfifo_fast_ops __read_mostly = {
+       .id             =       "pfifo_fast",
+-      .priv_size      =       PFIFO_FAST_BANDS * sizeof(struct sk_buff_head),
++      .cl_ops         =       &pfifo_fast_class_ops,
++      .priv_size      =       sizeof(struct pfifo_fast_sched_data),
+       .enqueue        =       pfifo_fast_enqueue,
+       .dequeue        =       pfifo_fast_dequeue,
+       .peek           =       pfifo_fast_peek,
+@@ -757,3 +821,18 @@ void dev_shutdown(struct net_device *dev
+       shutdown_scheduler_queue(dev, &dev->rx_queue, &noop_qdisc);
+       WARN_ON(timer_pending(&dev->watchdog_timer));
+ }
++
++#ifdef CONFIG_NET_SCHED
++static int __init sch_generic_init(void)
++{
++      return register_qdisc(&pfifo_fast_ops);
++}
++
++static void __exit sch_generic_exit(void)
++{
++      unregister_qdisc(&pfifo_fast_ops);
++}
++
++module_init(sch_generic_init)
++module_exit(sch_generic_exit)
++#endif

diff --git a/target/linux/generic-2.6/patches-2.6.32/400-ledtrig_morse.patch b/target/linux/generic-2.6/patches-2.6.32/400-ledtrig_morse.patch
new file mode 100644 (file)
index 0000000..1892eb5
--- /dev/null
+++ b/target/linux/generic-2.6/patches-2.6.32/400-ledtrig_morse.patch
@@ -0,0 +1,18 @@
+--- a/drivers/leds/Kconfig
++++ b/drivers/leds/Kconfig
+@@ -304,4 +304,8 @@ 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
+@@ -40,3 +40,4 @@ 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-2.6/patches-2.6.32/402-ledtrig_netdev.patch b/target/linux/generic-2.6/patches-2.6.32/402-ledtrig_netdev.patch
new file mode 100644 (file)
index 0000000..d6f7353
--- /dev/null
+++ b/target/linux/generic-2.6/patches-2.6.32/402-ledtrig_netdev.patch
@@ -0,0 +1,21 @@
+--- a/drivers/leds/Kconfig
++++ b/drivers/leds/Kconfig
+@@ -308,4 +308,11 @@ config LEDS_TRIGGER_MORSE
+       tristate "LED Morse Trigger"
+       depends on LEDS_TRIGGERS
+ 
++config LEDS_TRIGGER_NETDEV
++      tristate "LED Netdev Trigger"
++      depends on 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
+@@ -41,3 +41,4 @@ 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

diff --git a/target/linux/generic-2.6/patches-2.6.32/410-gpio_buttons.patch b/target/linux/generic-2.6/patches-2.6.32/410-gpio_buttons.patch
new file mode 100644 (file)
index 0000000..95987ce
--- /dev/null
+++ b/target/linux/generic-2.6/patches-2.6.32/410-gpio_buttons.patch
@@ -0,0 +1,31 @@
+--- a/drivers/input/misc/Kconfig
++++ b/drivers/input/misc/Kconfig
+@@ -316,4 +316,20 @@ config INPUT_PCAP
+         To compile this driver as a module, choose M here: the
+         module will be called pcap_keys.
+ 
++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
+@@ -30,4 +30,5 @@ obj-$(CONFIG_INPUT_WINBOND_CIR)              += winb
+ obj-$(CONFIG_INPUT_WISTRON_BTNS)      += wistron_btns.o
+ obj-$(CONFIG_INPUT_WM831X_ON)         += wm831x-on.o
+ obj-$(CONFIG_INPUT_YEALINK)           += yealink.o
++obj-$(CONFIG_INPUT_GPIO_BUTTONS)      += gpio_buttons.o
+ 

diff --git a/target/linux/generic-2.6/patches-2.6.32/420-gpiodev.patch b/target/linux/generic-2.6/patches-2.6.32/420-gpiodev.patch
new file mode 100644 (file)
index 0000000..7e4b85b
--- /dev/null
+++ b/target/linux/generic-2.6/patches-2.6.32/420-gpiodev.patch
@@ -0,0 +1,27 @@
+--- a/drivers/char/Kconfig
++++ b/drivers/char/Kconfig
+@@ -1029,6 +1029,14 @@ config CS5535_GPIO
+ 
+         If compiled as a module, it will be called cs5535_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
+@@ -96,6 +96,7 @@ obj-$(CONFIG_SCx200_GPIO)    += scx200_gpio
+ obj-$(CONFIG_PC8736x_GPIO)    += pc8736x_gpio.o
+ obj-$(CONFIG_NSC_GPIO)                += nsc_gpio.o
+ obj-$(CONFIG_CS5535_GPIO)     += cs5535_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-2.6/patches-2.6.32/430-scsi_header_fix.patch b/target/linux/generic-2.6/patches-2.6.32/430-scsi_header_fix.patch
new file mode 100644 (file)
index 0000000..adbd383
--- /dev/null
+++ b/target/linux/generic-2.6/patches-2.6.32/430-scsi_header_fix.patch
@@ -0,0 +1,17 @@
+--- a/include/scsi/scsi.h
++++ b/include/scsi/scsi.h
+@@ -145,10 +145,10 @@ struct scsi_cmnd;
+ 
+ /* defined in T10 SCSI Primary Commands-2 (SPC2) */
+ struct scsi_varlen_cdb_hdr {
+-      u8 opcode;        /* opcode always == VARIABLE_LENGTH_CMD */
+-      u8 control;
+-      u8 misc[5];
+-      u8 additional_cdb_length;         /* total cdb length - 8 */
++      __u8 opcode;        /* opcode always == VARIABLE_LENGTH_CMD */
++      __u8 control;
++      __u8 misc[5];
++      __u8 additional_cdb_length;         /* total cdb length - 8 */
+       __be16 service_action;
+       /* service specific data follows */
+ };

diff --git a/target/linux/generic-2.6/patches-2.6.32/510-yaffs_support.patch b/target/linux/generic-2.6/patches-2.6.32/510-yaffs_support.patch
new file mode 100644 (file)
index 0000000..fe549c3
--- /dev/null
+++ b/target/linux/generic-2.6/patches-2.6.32/510-yaffs_support.patch
@@ -0,0 +1,17 @@
+--- a/fs/Kconfig
++++ b/fs/Kconfig
+@@ -44,6 +44,7 @@ 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
+@@ -126,3 +126,4 @@ obj-$(CONFIG_OCFS2_FS)             += ocfs2/
+ obj-$(CONFIG_BTRFS_FS)                += btrfs/
+ obj-$(CONFIG_GFS2_FS)           += gfs2/
+ obj-$(CONFIG_EXOFS_FS)          += exofs/
++obj-$(CONFIG_YAFFS_FS)                += yaffs2/

diff --git a/target/linux/generic-2.6/patches-2.6.32/511-yaffs-cvs-2009-04-24.patch b/target/linux/generic-2.6/patches-2.6.32/511-yaffs-cvs-2009-04-24.patch
new file mode 100644 (file)
index 0000000..5c70e79
--- /dev/null
+++ b/target/linux/generic-2.6/patches-2.6.32/511-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 <sys/stat.h>
++#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 <sys/stat.h>
+ #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 <linux/types.h>
+-#include <linux/list.h>
+ #include <linux/fs.h>
+ #include <linux/stat.h>
+-#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 <charles@aleph1.co.uk>
+@@ -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 <linux/version.h>
+-#if (LINUX_VERSION_CODE < KERNEL_VERSION(2,6,19))
++#if (LINUX_VERSION_CODE < KERNEL_VERSION(2, 6, 19))
+ #include <linux/config.h>
+ #endif
+ #include <linux/kernel.h>
+ #include <linux/module.h>
+ #include <linux/slab.h>
+ #include <linux/init.h>
+-#include <linux/list.h>
+ #include <linux/fs.h>
+ #include <linux/proc_fs.h>
+ #include <linux/smp_lock.h>
+@@ -53,10 +52,12 @@ extern const char *yaffs_guts_c_version;
+ #include <linux/string.h>
+ #include <linux/ctype.h>
+ 
+-#if (LINUX_VERSION_CODE > KERNEL_VERSION(2,5,0))
++#include "asm/div64.h"
++
++#if (LINUX_VERSION_CODE > KERNEL_VERSION(2, 5, 0))
+ 
+ #include <linux/statfs.h>     /* Added NCB 15-8-2003 */
+-#include <asm/statfs.h>
++#include <linux/statfs.h>
+ #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 <asm/uaccess.h>
++#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 <linux/uaccess.h>
+ 
+ #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 <MAX_MASK_NAME_LENGTH; x++, i++, pos++)
+-                          substring[i] = *x;
++                      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){
++                              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 <charles@aleph1.co.uk>
++ *
++ * 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<<dev->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<<dev->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<<dev->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<<dev->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 <linux/string.h>
++/* #include <linux/string.h> */
+ 
+ /*
+  * 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 <linux/version.h>
+-#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 <linux/config.h>
+ #endif
+ #include <linux/kernel.h>
+@@ -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-2.6/patches-2.6.32/600-phy_extension.patch b/target/linux/generic-2.6/patches-2.6.32/600-phy_extension.patch
new file mode 100644 (file)
index 0000000..f384101
--- /dev/null
+++ b/target/linux/generic-2.6/patches-2.6.32/600-phy_extension.patch
@@ -0,0 +1,83 @@
+--- a/drivers/net/phy/phy.c
++++ b/drivers/net/phy/phy.c
+@@ -299,6 +299,50 @@ 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
+@@ -352,8 +396,8 @@ int phy_mii_ioctl(struct phy_device *phy
+               }
+ 
+               phy_write(phydev, mii_data->reg_num, val);
+-              
+-              if (mii_data->reg_num == MII_BMCR 
++
++              if (mii_data->reg_num == MII_BMCR
+                               && val & BMCR_RESET
+                               && phydev->drv->config_init) {
+                       phy_scan_fixups(phydev);
+@@ -468,7 +512,7 @@ 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
+@@ -489,6 +489,7 @@ 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 mii_ioctl_data *mii_data, int cmd);
+ int phy_start_interrupts(struct phy_device *phydev);

diff --git a/target/linux/generic-2.6/patches-2.6.32/620-phy_adm6996.patch b/target/linux/generic-2.6/patches-2.6.32/620-phy_adm6996.patch
new file mode 100644 (file)
index 0000000..b3e469a
--- /dev/null
+++ b/target/linux/generic-2.6/patches-2.6.32/620-phy_adm6996.patch
@@ -0,0 +1,24 @@
+--- a/drivers/net/phy/Kconfig
++++ b/drivers/net/phy/Kconfig
+@@ -88,6 +88,11 @@ config LSI_ET1011C_PHY
+       ---help---
+         Supports the LSI ET1011C PHY.
+ 
++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-2.6/patches-2.6.32/630-phy_packets.patch b/target/linux/generic-2.6/patches-2.6.32/630-phy_packets.patch
new file mode 100644 (file)
index 0000000..fdfdac7
--- /dev/null
+++ b/target/linux/generic-2.6/patches-2.6.32/630-phy_packets.patch
@@ -0,0 +1,63 @@
+--- a/drivers/net/phy/phy_device.c
++++ b/drivers/net/phy/phy_device.c
+@@ -146,6 +146,18 @@ 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);
++}
++
+ struct phy_device* phy_device_create(struct mii_bus *bus, int addr, int phy_id)
+ {
+       struct phy_device *dev;
+@@ -175,6 +187,8 @@ struct phy_device* phy_device_create(str
+       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);
+ 
+--- a/include/linux/phy.h
++++ b/include/linux/phy.h
+@@ -325,6 +325,20 @@ 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
+@@ -807,6 +807,7 @@ 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 line mostly used on receive path (including eth_type_trans())

diff --git a/target/linux/generic-2.6/patches-2.6.32/650-swconfig.patch b/target/linux/generic-2.6/patches-2.6.32/650-swconfig.patch
new file mode 100644 (file)
index 0000000..6825037
--- /dev/null
+++ b/target/linux/generic-2.6/patches-2.6.32/650-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-2.6/patches-2.6.32/660-phy_mvswitch.patch b/target/linux/generic-2.6/patches-2.6.32/660-phy_mvswitch.patch
new file mode 100644 (file)
index 0000000..36551fd
--- /dev/null
+++ b/target/linux/generic-2.6/patches-2.6.32/660-phy_mvswitch.patch
@@ -0,0 +1,22 @@
+--- a/drivers/net/phy/Kconfig
++++ b/drivers/net/phy/Kconfig
+@@ -99,6 +99,9 @@ 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-2.6/patches-2.6.32/670-phy_ip175c.patch b/target/linux/generic-2.6/patches-2.6.32/670-phy_ip175c.patch
new file mode 100644 (file)
index 0000000..862868c
--- /dev/null
+++ b/target/linux/generic-2.6/patches-2.6.32/670-phy_ip175c.patch
@@ -0,0 +1,23 @@
+--- a/drivers/net/phy/Kconfig
++++ b/drivers/net/phy/Kconfig
+@@ -102,6 +102,10 @@ config ADM6996_PHY
+ config MVSWITCH_PHY
+       tristate "Driver for Marvell 88E6060 switches"
+ 
++config IP175C_PHY
++      tristate "Driver for IC+ IP175C/IP178C 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-$(CONFIG_IP175C_PHY)      += ip175c.o
+ obj-$(CONFIG_REALTEK_PHY)     += realtek.o
+ obj-$(CONFIG_LSI_ET1011C_PHY) += et1011c.o
+ obj-$(CONFIG_FIXED_PHY)               += fixed.o

diff --git a/target/linux/generic-2.6/patches-2.6.32/680-phy_ar8216.patch b/target/linux/generic-2.6/patches-2.6.32/680-phy_ar8216.patch
new file mode 100644 (file)
index 0000000..00372aa
--- /dev/null
+++ b/target/linux/generic-2.6/patches-2.6.32/680-phy_ar8216.patch
@@ -0,0 +1,23 @@
+--- a/drivers/net/phy/Kconfig
++++ b/drivers/net/phy/Kconfig
+@@ -106,6 +106,10 @@ config IP175C_PHY
+       tristate "Driver for IC+ IP175C/IP178C 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-$(CONFIG_IP175C_PHY)      += ip175c.o
+ obj-$(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-2.6/patches-2.6.32/690-phy_rtl8306.patch b/target/linux/generic-2.6/patches-2.6.32/690-phy_rtl8306.patch
new file mode 100644 (file)
index 0000000..a4793cb
--- /dev/null
+++ b/target/linux/generic-2.6/patches-2.6.32/690-phy_rtl8306.patch
@@ -0,0 +1,23 @@
+--- a/drivers/net/phy/Kconfig
++++ b/drivers/net/phy/Kconfig
+@@ -110,6 +110,10 @@ 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_IP175C_PHY)      += ip175c.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-2.6/patches-2.6.32/700-rtc7301.patch b/target/linux/generic-2.6/patches-2.6.32/700-rtc7301.patch
new file mode 100644 (file)
index 0000000..dfaad42
--- /dev/null
+++ b/target/linux/generic-2.6/patches-2.6.32/700-rtc7301.patch
@@ -0,0 +1,250 @@
+--- a/drivers/rtc/Kconfig
++++ b/drivers/rtc/Kconfig
+@@ -574,6 +574,15 @@ config RTC_DRV_AB3100
+         support. This chip contains a battery- and capacitor-backed RTC.
+ 
+ 
++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_OMAP
+--- a/drivers/rtc/Makefile
++++ b/drivers/rtc/Makefile
+@@ -67,6 +67,7 @@ obj-$(CONFIG_RTC_DRV_R9701)  += rtc-r9701
+ obj-$(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 <linux/module.h>
++#include <linux/rtc.h>
++#include <linux/platform_device.h>
++#include <linux/io.h>
++#include <linux/delay.h>
++#include <linux/bcd.h>
++
++#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 <jvasco@verizon.net>");
++MODULE_LICENSE("GPL");
++MODULE_ALIAS("platform:" RTC_NAME);
++MODULE_VERSION(RTC_VERSION);

diff --git a/target/linux/generic-2.6/patches-2.6.32/750-glamo-headers.patch b/target/linux/generic-2.6/patches-2.6.32/750-glamo-headers.patch
new file mode 100644 (file)
index 0000000..419d98a
--- /dev/null
+++ b/target/linux/generic-2.6/patches-2.6.32/750-glamo-headers.patch
@@ -0,0 +1,21 @@
+--- a/include/linux/fb.h
++++ b/include/linux/fb.h
+@@ -124,6 +124,7 @@ struct dentry;
+ #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
+@@ -76,6 +76,8 @@ header-y += genetlink.h
+ header-y += gen_stats.h
+ header-y += gfs2_ondisk.h
+ header-y += gigaset_dev.h
++header-y += glamofb.h
++header-y += glamo-engine.h
+ header-y += hysdn_if.h
+ header-y += i2o-dev.h
+ header-y += i8k.h

diff --git a/target/linux/generic-2.6/patches-2.6.32/801-usb_serial_endpoint_size.patch b/target/linux/generic-2.6/patches-2.6.32/801-usb_serial_endpoint_size.patch
new file mode 100644 (file)
index 0000000..fea67c4
--- /dev/null
+++ b/target/linux/generic-2.6/patches-2.6.32/801-usb_serial_endpoint_size.patch
@@ -0,0 +1,25 @@
+--- 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];
+@@ -942,7 +943,7 @@ int usb_serial_probe(struct usb_interfac
+                       dev_err(&interface->dev, "No free urbs available\n");
+                       goto probe_error;
+               }
+-              buffer_size = le16_to_cpu(endpoint->wMaxPacketSize);
++              buffer_size = (endpoint->wMaxPacketSize > maxSize) ? endpoint->wMaxPacketSize : maxSize;
+               port->bulk_in_size = buffer_size;
+               port->bulk_in_endpointAddress = endpoint->bEndpointAddress;
+               port->bulk_in_buffer = kmalloc(buffer_size, GFP_KERNEL);
+@@ -1386,3 +1387,5 @@ 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-2.6/patches-2.6.32/840-unable_to_open_console.patch b/target/linux/generic-2.6/patches-2.6.32/840-unable_to_open_console.patch
new file mode 100644 (file)
index 0000000..3925b77
--- /dev/null
+++ b/target/linux/generic-2.6/patches-2.6.32/840-unable_to_open_console.patch
@@ -0,0 +1,11 @@
+--- a/init/main.c
++++ b/init/main.c
+@@ -819,7 +819,7 @@ static noinline int init_post(void)
+       printk(KERN_INFO"Running BFS CPU scheduler v0.302 by Con Kolivas.\n");
+ 
+       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-2.6/patches-2.6.32/902-darwin_scripts_include.patch b/target/linux/generic-2.6/patches-2.6.32/902-darwin_scripts_include.patch
new file mode 100644 (file)
index 0000000..6d4b08c
--- /dev/null
+++ b/target/linux/generic-2.6/patches-2.6.32/902-darwin_scripts_include.patch
@@ -0,0 +1,102 @@
+--- a/scripts/genksyms/parse.c_shipped
++++ b/scripts/genksyms/parse.c_shipped
+@@ -160,7 +160,9 @@
+ 
+ 
+ #include <assert.h>
++#ifndef __APPLE__
+ #include <malloc.h>
++#endif
+ #include "genksyms.h"
+ 
+ static int is_typedef;
+--- a/scripts/genksyms/parse.y
++++ b/scripts/genksyms/parse.y
+@@ -24,7 +24,9 @@
+ %{
+ 
+ #include <assert.h>
++#ifndef __APPLE__
+ #include <malloc.h>
++#endif
+ #include "genksyms.h"
+ 
+ static int is_typedef;
+--- a/scripts/kallsyms.c
++++ b/scripts/kallsyms.c
+@@ -22,6 +22,35 @@
+ #include <stdlib.h>
+ #include <string.h>
+ #include <ctype.h>
++#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
+@@ -129,6 +129,9 @@ 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)
+ HOST_LOADLIBES   = $(shell $(CONFIG_SHELL) $(check-lxdialog) -ldflags $(HOSTCC))
++ifeq ($(shell uname -s),Darwin)
++HOST_LOADLIBES  += -lncurses
++endif
+ 
+ HOST_EXTRACFLAGS += -DLOCALE
+ 
+--- a/scripts/mod/mk_elfconfig.c
++++ b/scripts/mod/mk_elfconfig.c
+@@ -1,7 +1,11 @@
+ #include <stdio.h>
+ #include <stdlib.h>
+ #include <string.h>
++#ifndef __APPLE__
+ #include <elf.h>
++#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 <sys/mman.h>
+ #include <fcntl.h>
+ #include <unistd.h>
++#if !(defined(__APPLE__) || defined(__CYGWIN__))
+ #include <elf.h>
++#else
++#include "../../../../../tools/sstrip/include/elf.h"
++#endif
+ 
+ #include "elfconfig.h"
+ 

diff --git a/target/linux/generic-2.6/patches-2.6.32/903-hostap_txpower.patch b/target/linux/generic-2.6/patches-2.6.32/903-hostap_txpower.patch
new file mode 100644 (file)
index 0000000..7552ceb
--- /dev/null
+++ b/target/linux/generic-2.6/patches-2.6.32/903-hostap_txpower.patch
@@ -0,0 +1,154 @@
+--- a/drivers/net/wireless/hostap/hostap_ap.c
++++ b/drivers/net/wireless/hostap/hostap_ap.c
+@@ -2335,13 +2335,13 @@ 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;
+@@ -2407,13 +2407,13 @@ 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
+@@ -432,6 +432,11 @@ 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
+@@ -1476,23 +1476,20 @@ 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-2.6/patches-2.6.32/903-stddef_include.patch b/target/linux/generic-2.6/patches-2.6.32/903-stddef_include.patch
new file mode 100644 (file)
index 0000000..7fe248d
--- /dev/null
+++ b/target/linux/generic-2.6/patches-2.6.32/903-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-2.6/patches-2.6.32/905-i386_build.patch b/target/linux/generic-2.6/patches-2.6.32/905-i386_build.patch
new file mode 100644 (file)
index 0000000..c701fda
--- /dev/null
+++ b/target/linux/generic-2.6/patches-2.6.32/905-i386_build.patch
@@ -0,0 +1,10 @@
+--- a/arch/x86/boot/tools/build.c
++++ b/arch/x86/boot/tools/build.c
+@@ -29,7 +29,6 @@
+ #include <stdarg.h>
+ #include <sys/types.h>
+ #include <sys/stat.h>
+-#include <sys/sysmacros.h>
+ #include <unistd.h>
+ #include <fcntl.h>
+ #include <sys/mman.h>

diff --git a/target/linux/generic-2.6/patches-2.6.32/920-01-hotpluggable-spi-gpio.patch b/target/linux/generic-2.6/patches-2.6.32/920-01-hotpluggable-spi-gpio.patch
new file mode 100644 (file)
index 0000000..b10bc9a
--- /dev/null
+++ b/target/linux/generic-2.6/patches-2.6.32/920-01-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
+@@ -218,7 +218,7 @@ 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;
+ 
+@@ -232,7 +232,7 @@ 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)
+ {
+       int value;
+@@ -261,7 +261,7 @@ 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;
+@@ -317,7 +317,7 @@ 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;
+@@ -344,12 +344,13 @@ 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-2.6/patches-2.6.32/920-04-spi-gpio-implement-spi-delay.patch b/target/linux/generic-2.6/patches-2.6.32/920-04-spi-gpio-implement-spi-delay.patch
new file mode 100644 (file)
index 0000000..1903288
--- /dev/null
+++ b/target/linux/generic-2.6/patches-2.6.32/920-04-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 <linux/init.h>
+ #include <linux/platform_device.h>
+ #include <linux/gpio.h>
++#include <linux/delay.h>
+ 
+ #include <linux/spi/spi.h>
+ #include <linux/spi/spi_bitbang.h>
+@@ -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 */
++}
+ 
+ #define       EXPAND_BITBANG_TXRX
+ #include <linux/spi/spi_bitbang.h>

diff --git a/target/linux/generic-2.6/patches-2.6.32/921-gpio_spi_driver.patch b/target/linux/generic-2.6/patches-2.6.32/921-gpio_spi_driver.patch
new file mode 100644 (file)
index 0000000..73563f2
--- /dev/null
+++ b/target/linux/generic-2.6/patches-2.6.32/921-gpio_spi_driver.patch
@@ -0,0 +1,366 @@
+THIS CODE IS DEPRECATED.
+
+Please use the new mainline SPI-GPIO driver, as of 2.6.29.
+
+--mb
+
+
+
+--- /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 <linux/types.h>
++#include <linux/spi/spi.h>
++
++
++/**
++ * 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 <linux/kernel.h>
++#include <linux/init.h>
++#include <linux/delay.h>
++#include <linux/spinlock.h>
++#include <linux/workqueue.h>
++#include <linux/module.h>
++#include <linux/platform_device.h>
++#include <linux/spi/spi.h>
++#include <linux/spi/spi_bitbang.h>
++#include <linux/spi/spi_gpio_old.h>
++#include <linux/gpio.h>
++#include <asm/atomic.h>
++
++
++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 <linux/spi/spi_bitbang.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, 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, 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, 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, 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 <piotr.skamruk at gmail.com>");
++MODULE_AUTHOR("Michael Buesch");
++MODULE_DESCRIPTION("Platform independent GPIO bitbanging SPI driver");
++MODULE_LICENSE("GPL v2");
+--- a/drivers/spi/Kconfig
++++ b/drivers/spi/Kconfig
+@@ -116,6 +116,15 @@ config SPI_GPIO
+         GPIO operations, you should be able to leverage that for better
+         speed with a custom version of this driver; see the source code.
+ 
++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
+@@ -17,6 +17,7 @@ obj-$(CONFIG_SPI_BITBANG)            += spi_bitban
+ obj-$(CONFIG_SPI_AU1550)              += au1550_spi.o
+ obj-$(CONFIG_SPI_BUTTERFLY)           += spi_butterfly.o
+ obj-$(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-2.6/patches-2.6.32/922-gpiommc.patch b/target/linux/generic-2.6/patches-2.6.32/922-gpiommc.patch
new file mode 100644 (file)
index 0000000..4fdf7bb
--- /dev/null
+++ b/target/linux/generic-2.6/patches-2.6.32/922-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 <mb@bu3sch.de>
++ *
++ * Licensed under the GNU/GPL. See COPYING for details.
++ */
++
++#include <linux/mmc/gpiommc.h>
++#include <linux/platform_device.h>
++#include <linux/list.h>
++#include <linux/mutex.h>
++#include <linux/spi/spi_gpio_old.h>
++#include <linux/configfs.h>
++#include <linux/gpio.h>
++#include <asm/atomic.h>
++
++
++#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
+@@ -334,6 +334,31 @@ config MMC_TMIO
+         This provides support for the SD/MMC cell found in TC6393XB,
+         T7L66XB and also HTC ASIC3
+ 
++config GPIOMMC
++      tristate "MMC/SD over GPIO-based SPI"
++      depends on MMC && MMC_SPI && SPI_GPIO
++      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
+@@ -34,6 +34,7 @@ obj-$(CONFIG_MMC_SDRICOH_CS) += sdricoh_
+ obj-$(CONFIG_MMC_TMIO)                += tmio_mmc.o
+ obj-$(CONFIG_MMC_CB710)       += cb710-mmc.o
+ obj-$(CONFIG_MMC_VIA_SDMMC)   += via-sdmmc.o
++obj-$(CONFIG_GPIOMMC)         += gpiommc.o
+ 
+ ifeq ($(CONFIG_CB710_DEBUG),y)
+       CFLAGS-cb710-mmc        += -DDEBUG
+--- /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 <linux/types.h>
++
++
++#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 <linux/mmc/gpiommc.h>.
++
++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
+@@ -2354,6 +2354,11 @@ 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
+ L:    lm-sensors@lm-sensors.org
+ W:    http://www.lm-sensors.org/

diff --git a/target/linux/generic-2.6/patches-2.6.32/923-gpiommc-configfs-locking.patch b/target/linux/generic-2.6/patches-2.6.32/923-gpiommc-configfs-locking.patch
new file mode 100644 (file)
index 0000000..2e4e820
--- /dev/null
+++ b/target/linux/generic-2.6/patches-2.6.32/923-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-2.6/patches-2.6.32/924-cs5535_gpio.patch b/target/linux/generic-2.6/patches-2.6.32/924-cs5535_gpio.patch
new file mode 100644 (file)
index 0000000..453affe
--- /dev/null
+++ b/target/linux/generic-2.6/patches-2.6.32/924-cs5535_gpio.patch
@@ -0,0 +1,102 @@
+--- a/drivers/char/cs5535_gpio.c
++++ b/drivers/char/cs5535_gpio.c
+@@ -15,6 +15,7 @@
+ #include <linux/kernel.h>
+ #include <linux/init.h>
+ #include <linux/cdev.h>
++#include <linux/device.h>
+ #include <linux/ioport.h>
+ #include <linux/pci.h>
+ #include <linux/smp_lock.h>
+@@ -48,6 +49,7 @@ static struct pci_device_id divil_pci[] 
+ MODULE_DEVICE_TABLE(pci, divil_pci);
+ 
+ static struct cdev cs5535_gpio_cdev;
++static struct class *cs5535_gpio_class;
+ 
+ /* reserve 32 entries even though some aren't usable */
+ #define CS5535_GPIO_COUNT     32
+@@ -66,9 +68,14 @@ static struct gpio_regmap rm[] =
+       { 0x30, 0x00, '1', '0' },       /* GPIOx_READ_BACK / GPIOx_OUT_VAL */
+       { 0x20, 0x20, 'I', 'i' },       /* GPIOx_IN_EN */
+       { 0x04, 0x04, 'O', 'o' },       /* GPIOx_OUT_EN */
++      { 0x10, 0x10, 'A', 'a' },       /* GPIOx_OUT_AUX1_SEL */
++      { 0x14, 0x14, 'B', 'b' },       /* GPIOx_OUT_AUX2_SEL */
+       { 0x08, 0x08, 't', 'T' },       /* GPIOx_OUT_OD_EN */
+       { 0x18, 0x18, 'P', 'p' },       /* GPIOx_OUT_PU_EN */
+       { 0x1c, 0x1c, 'D', 'd' },       /* GPIOx_OUT_PD_EN */
++      { 0x24, 0x24, 'N', 'n' },       /* GPIOx_IN_INV_EN */
++      { 0x0c, 0x0c, 'X', 'x' },       /* GPIOx_OUT_INV_EN */
++      { 0x00, 0x00, 'H', 'L' },       /* GPIOx_OUT_VAL */
+ };
+ 
+ 
+@@ -177,7 +184,7 @@ static int __init cs5535_gpio_init(void)
+ {
+       dev_t   dev_id;
+       u32     low, hi;
+-      int     retval;
++      int     retval, i;
+ 
+       if (pci_dev_present(divil_pci) == 0) {
+               printk(KERN_WARNING NAME ": DIVIL not found\n");
+@@ -232,23 +239,54 @@ static int __init cs5535_gpio_init(void)
+               major = MAJOR(dev_id);
+       }
+ 
+-      if (retval) {
+-              release_region(gpio_base, CS5535_GPIO_SIZE);
+-              return -1;
+-      }
++      if (retval)
++              goto error;
+ 
+       printk(KERN_DEBUG NAME ": base=%#x mask=%#lx major=%d\n",
+              gpio_base, mask, major);
+ 
+       cdev_init(&cs5535_gpio_cdev, &cs5535_gpio_fops);
+-      cdev_add(&cs5535_gpio_cdev, dev_id, CS5535_GPIO_COUNT);
++      retval = cdev_add(&cs5535_gpio_cdev, dev_id, CS5535_GPIO_COUNT);
++      if (retval) {
++              kobject_put(&cs5535_gpio_cdev.kobj);
++              goto error_region;
++      }
++
++      cs5535_gpio_class = class_create(THIS_MODULE, "cs5535_gpio");
++      if (IS_ERR(cs5535_gpio_class)) {
++              printk(KERN_ERR "Error creating cs5535_gpio class\n");
++              cdev_del(&cs5535_gpio_cdev);
++              retval = PTR_ERR(cs5535_gpio_class);
++              goto error_region;
++      }
++
++      for (i = 0; i < CS5535_GPIO_COUNT; i++) {
++              if (mask & (1<<i)) {
++                      device_create(cs5535_gpio_class, NULL, MKDEV(major, i), NULL, "cs5535_gpio%d", i);
++              }
++      }
+ 
+       return 0;
++
++error_region:
++      unregister_chrdev_region(dev_id, CS5535_GPIO_COUNT);
++error:
++      release_region(gpio_base, CS5535_GPIO_SIZE);
++      return retval;
+ }
+ 
+ static void __exit cs5535_gpio_cleanup(void)
+ {
+       dev_t dev_id = MKDEV(major, 0);
++      int i;
++
++      for (i = 0; i < CS5535_GPIO_COUNT; i++) {
++              if (mask & (1<<i)) {
++                      device_destroy(cs5535_gpio_class, MKDEV(major, i));
++              }
++      }
++
++      class_destroy(cs5535_gpio_class);
+ 
+       cdev_del(&cs5535_gpio_cdev);
+       unregister_chrdev_region(dev_id, CS5535_GPIO_COUNT);

diff --git a/target/linux/generic-2.6/patches-2.6.32/925-modify-i2c-gpio-initcall-level.patch b/target/linux/generic-2.6/patches-2.6.32/925-modify-i2c-gpio-initcall-level.patch
new file mode 100644 (file)
index 0000000..1708e33
--- /dev/null
+++ b/target/linux/generic-2.6/patches-2.6.32/925-modify-i2c-gpio-initcall-level.patch
@@ -0,0 +1,11 @@
+--- a/drivers/i2c/busses/i2c-gpio.c
++++ b/drivers/i2c/busses/i2c-gpio.c
+@@ -210,7 +210,7 @@ static int __init i2c_gpio_init(void)
+ 
+       return ret;
+ }
+-module_init(i2c_gpio_init);
++subsys_initcall(i2c_gpio_init);
+ 
+ static void __exit i2c_gpio_exit(void)
+ {

diff --git a/target/linux/generic-2.6/patches-2.6.32/940-wireless_mesh_header.patch b/target/linux/generic-2.6/patches-2.6.32/940-wireless_mesh_header.patch
new file mode 100644 (file)
index 0000000..bd44529
--- /dev/null
+++ b/target/linux/generic-2.6/patches-2.6.32/940-wireless_mesh_header.patch
@@ -0,0 +1,11 @@
+--- a/include/linux/netdevice.h
++++ b/include/linux/netdevice.h
+@@ -98,7 +98,7 @@ typedef enum netdev_tx netdev_tx_t;
+  */
+ 
+ #if defined(CONFIG_WLAN_80211) || 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-2.6/patches-2.6.32/951-revert_gcc4_4_fixes.patch b/target/linux/generic-2.6/patches-2.6.32/951-revert_gcc4_4_fixes.patch
new file mode 100644 (file)
index 0000000..d2c76a8
--- /dev/null
+++ b/target/linux/generic-2.6/patches-2.6.32/951-revert_gcc4_4_fixes.patch
@@ -0,0 +1,524 @@
+--- a/arch/powerpc/boot/crtsavres.S
++++ /dev/null
+@@ -1,233 +0,0 @@
+-/*
+- * Special support for eabi and SVR4
+- *
+- *   Copyright (C) 1995, 1996, 1998, 2000, 2001 Free Software Foundation, Inc.
+- *   Copyright 2008 Freescale Semiconductor, Inc.
+- *   Written By Michael Meissner
+- *
+- * Based on gcc/config/rs6000/crtsavres.asm from gcc
+- *
+- * This file 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, or (at your option) any
+- * later version.
+- *
+- * In addition to the permissions in the GNU General Public License, the
+- * Free Software Foundation gives you unlimited permission to link the
+- * compiled version of this file with other programs, and to distribute
+- * those programs without any restriction coming from the use of this
+- * file.  (The General Public License restrictions do apply in other
+- * respects; for example, they cover modification of the file, and
+- * distribution when not linked into another program.)
+- *
+- * This file is distributed in the hope that 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; see the file COPYING.  If not, write to
+- * the Free Software Foundation, 51 Franklin Street, Fifth Floor,
+- * Boston, MA 02110-1301, USA.
+- *
+- *    As a special exception, if you link this library with files
+- *    compiled with GCC to produce an executable, this does not cause
+- *    the resulting executable to be covered by the GNU General Public License.
+- *    This exception does not however invalidate any other reasons why
+- *    the executable file might be covered by the GNU General Public License.
+- */
+-
+-      .file   "crtsavres.S"
+-      .section ".text"
+-
+-/* On PowerPC64 Linux, these functions are provided by the linker.  */
+-#ifndef __powerpc64__
+-
+-#define _GLOBAL(name) \
+-      .type name,@function; \
+-      .globl name; \
+-name:
+-
+-/* Routines for saving integer registers, called by the compiler.  */
+-/* Called with r11 pointing to the stack header word of the caller of the */
+-/* function, just beyond the end of the integer save area.  */
+-
+-_GLOBAL(_savegpr_14)
+-_GLOBAL(_save32gpr_14)
+-      stw     14,-72(11)      /* save gp registers */
+-_GLOBAL(_savegpr_15)
+-_GLOBAL(_save32gpr_15)
+-      stw     15,-68(11)
+-_GLOBAL(_savegpr_16)
+-_GLOBAL(_save32gpr_16)
+-      stw     16,-64(11)
+-_GLOBAL(_savegpr_17)
+-_GLOBAL(_save32gpr_17)
+-      stw     17,-60(11)
+-_GLOBAL(_savegpr_18)
+-_GLOBAL(_save32gpr_18)
+-      stw     18,-56(11)
+-_GLOBAL(_savegpr_19)
+-_GLOBAL(_save32gpr_19)
+-      stw     19,-52(11)
+-_GLOBAL(_savegpr_20)
+-_GLOBAL(_save32gpr_20)
+-      stw     20,-48(11)
+-_GLOBAL(_savegpr_21)
+-_GLOBAL(_save32gpr_21)
+-      stw     21,-44(11)
+-_GLOBAL(_savegpr_22)
+-_GLOBAL(_save32gpr_22)
+-      stw     22,-40(11)
+-_GLOBAL(_savegpr_23)
+-_GLOBAL(_save32gpr_23)
+-      stw     23,-36(11)
+-_GLOBAL(_savegpr_24)
+-_GLOBAL(_save32gpr_24)
+-      stw     24,-32(11)
+-_GLOBAL(_savegpr_25)
+-_GLOBAL(_save32gpr_25)
+-      stw     25,-28(11)
+-_GLOBAL(_savegpr_26)
+-_GLOBAL(_save32gpr_26)
+-      stw     26,-24(11)
+-_GLOBAL(_savegpr_27)
+-_GLOBAL(_save32gpr_27)
+-      stw     27,-20(11)
+-_GLOBAL(_savegpr_28)
+-_GLOBAL(_save32gpr_28)
+-      stw     28,-16(11)
+-_GLOBAL(_savegpr_29)
+-_GLOBAL(_save32gpr_29)
+-      stw     29,-12(11)
+-_GLOBAL(_savegpr_30)
+-_GLOBAL(_save32gpr_30)
+-      stw     30,-8(11)
+-_GLOBAL(_savegpr_31)
+-_GLOBAL(_save32gpr_31)
+-      stw     31,-4(11)
+-      blr
+-
+-/* Routines for restoring integer registers, called by the compiler.  */
+-/* Called with r11 pointing to the stack header word of the caller of the */
+-/* function, just beyond the end of the integer restore area.  */
+-
+-_GLOBAL(_restgpr_14)
+-_GLOBAL(_rest32gpr_14)
+-      lwz     14,-72(11)      /* restore gp registers */
+-_GLOBAL(_restgpr_15)
+-_GLOBAL(_rest32gpr_15)
+-      lwz     15,-68(11)
+-_GLOBAL(_restgpr_16)
+-_GLOBAL(_rest32gpr_16)
+-      lwz     16,-64(11)
+-_GLOBAL(_restgpr_17)
+-_GLOBAL(_rest32gpr_17)
+-      lwz     17,-60(11)
+-_GLOBAL(_restgpr_18)
+-_GLOBAL(_rest32gpr_18)
+-      lwz     18,-56(11)
+-_GLOBAL(_restgpr_19)
+-_GLOBAL(_rest32gpr_19)
+-      lwz     19,-52(11)
+-_GLOBAL(_restgpr_20)
+-_GLOBAL(_rest32gpr_20)
+-      lwz     20,-48(11)
+-_GLOBAL(_restgpr_21)
+-_GLOBAL(_rest32gpr_21)
+-      lwz     21,-44(11)
+-_GLOBAL(_restgpr_22)
+-_GLOBAL(_rest32gpr_22)
+-      lwz     22,-40(11)
+-_GLOBAL(_restgpr_23)
+-_GLOBAL(_rest32gpr_23)
+-      lwz     23,-36(11)
+-_GLOBAL(_restgpr_24)
+-_GLOBAL(_rest32gpr_24)
+-      lwz     24,-32(11)
+-_GLOBAL(_restgpr_25)
+-_GLOBAL(_rest32gpr_25)
+-      lwz     25,-28(11)
+-_GLOBAL(_restgpr_26)
+-_GLOBAL(_rest32gpr_26)
+-      lwz     26,-24(11)
+-_GLOBAL(_restgpr_27)
+-_GLOBAL(_rest32gpr_27)
+-      lwz     27,-20(11)
+-_GLOBAL(_restgpr_28)
+-_GLOBAL(_rest32gpr_28)
+-      lwz     28,-16(11)
+-_GLOBAL(_restgpr_29)
+-_GLOBAL(_rest32gpr_29)
+-      lwz     29,-12(11)
+-_GLOBAL(_restgpr_30)
+-_GLOBAL(_rest32gpr_30)
+-      lwz     30,-8(11)
+-_GLOBAL(_restgpr_31)
+-_GLOBAL(_rest32gpr_31)
+-      lwz     31,-4(11)
+-      blr
+-
+-/* Routines for restoring integer registers, called by the compiler.  */
+-/* Called with r11 pointing to the stack header word of the caller of the */
+-/* function, just beyond the end of the integer restore area.  */
+-
+-_GLOBAL(_restgpr_14_x)
+-_GLOBAL(_rest32gpr_14_x)
+-      lwz     14,-72(11)      /* restore gp registers */
+-_GLOBAL(_restgpr_15_x)
+-_GLOBAL(_rest32gpr_15_x)
+-      lwz     15,-68(11)
+-_GLOBAL(_restgpr_16_x)
+-_GLOBAL(_rest32gpr_16_x)
+-      lwz     16,-64(11)
+-_GLOBAL(_restgpr_17_x)
+-_GLOBAL(_rest32gpr_17_x)
+-      lwz     17,-60(11)
+-_GLOBAL(_restgpr_18_x)
+-_GLOBAL(_rest32gpr_18_x)
+-      lwz     18,-56(11)
+-_GLOBAL(_restgpr_19_x)
+-_GLOBAL(_rest32gpr_19_x)
+-      lwz     19,-52(11)
+-_GLOBAL(_restgpr_20_x)
+-_GLOBAL(_rest32gpr_20_x)
+-      lwz     20,-48(11)
+-_GLOBAL(_restgpr_21_x)
+-_GLOBAL(_rest32gpr_21_x)
+-      lwz     21,-44(11)
+-_GLOBAL(_restgpr_22_x)
+-_GLOBAL(_rest32gpr_22_x)
+-      lwz     22,-40(11)
+-_GLOBAL(_restgpr_23_x)
+-_GLOBAL(_rest32gpr_23_x)
+-      lwz     23,-36(11)
+-_GLOBAL(_restgpr_24_x)
+-_GLOBAL(_rest32gpr_24_x)
+-      lwz     24,-32(11)
+-_GLOBAL(_restgpr_25_x)
+-_GLOBAL(_rest32gpr_25_x)
+-      lwz     25,-28(11)
+-_GLOBAL(_restgpr_26_x)
+-_GLOBAL(_rest32gpr_26_x)
+-      lwz     26,-24(11)
+-_GLOBAL(_restgpr_27_x)
+-_GLOBAL(_rest32gpr_27_x)
+-      lwz     27,-20(11)
+-_GLOBAL(_restgpr_28_x)
+-_GLOBAL(_rest32gpr_28_x)
+-      lwz     28,-16(11)
+-_GLOBAL(_restgpr_29_x)
+-_GLOBAL(_rest32gpr_29_x)
+-      lwz     29,-12(11)
+-_GLOBAL(_restgpr_30_x)
+-_GLOBAL(_rest32gpr_30_x)
+-      lwz     30,-8(11)
+-_GLOBAL(_restgpr_31_x)
+-_GLOBAL(_rest32gpr_31_x)
+-      lwz     0,4(11)
+-      lwz     31,-4(11)
+-      mtlr    0
+-      mr      1,11
+-      blr
+-#endif
+--- a/arch/powerpc/boot/Makefile
++++ b/arch/powerpc/boot/Makefile
+@@ -60,7 +60,7 @@ libfdtheader := fdt.h libfdt.h libfdt_in
+ $(addprefix $(obj)/,$(libfdt) libfdt-wrapper.o simpleboot.o): \
+       $(addprefix $(obj)/,$(libfdtheader))
+ 
+-src-wlib := string.S crt0.S crtsavres.S stdio.c main.c \
++src-wlib := string.S crt0.S stdio.c main.c \
+               $(libfdt) libfdt-wrapper.c \
+               ns16550.c serial.c simple_alloc.c div64.S util.S \
+               gunzip_util.c elf_util.c $(zlib) devtree.c oflib.c ofconsole.c \
+--- a/arch/powerpc/kernel/prom_init_check.sh
++++ b/arch/powerpc/kernel/prom_init_check.sh
+@@ -48,20 +48,6 @@ do
+               fi
+       done
+ 
+-      # ignore register save/restore funcitons
+-      if [ "${UNDEF:0:9}" = "_restgpr_" ]; then
+-              OK=1
+-      fi
+-      if [ "${UNDEF:0:11}" = "_rest32gpr_" ]; then
+-              OK=1
+-      fi
+-      if [ "${UNDEF:0:9}" = "_savegpr_" ]; then
+-              OK=1
+-      fi
+-      if [ "${UNDEF:0:11}" = "_save32gpr_" ]; then
+-              OK=1
+-      fi
+-
+       if [ $OK -eq 0 ]; then
+               ERROR=1
+               echo "Error: External symbol '$UNDEF' referenced" \
+--- a/arch/powerpc/lib/crtsavres.S
++++ /dev/null
+@@ -1,229 +0,0 @@
+-/*
+- * Special support for eabi and SVR4
+- *
+- *   Copyright (C) 1995, 1996, 1998, 2000, 2001 Free Software Foundation, Inc.
+- *   Copyright 2008 Freescale Semiconductor, Inc.
+- *   Written By Michael Meissner
+- *
+- * Based on gcc/config/rs6000/crtsavres.asm from gcc
+- *
+- * This file 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, or (at your option) any
+- * later version.
+- *
+- * In addition to the permissions in the GNU General Public License, the
+- * Free Software Foundation gives you unlimited permission to link the
+- * compiled version of this file with other programs, and to distribute
+- * those programs without any restriction coming from the use of this
+- * file.  (The General Public License restrictions do apply in other
+- * respects; for example, they cover modification of the file, and
+- * distribution when not linked into another program.)
+- *
+- * This file is distributed in the hope that 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; see the file COPYING.  If not, write to
+- * the Free Software Foundation, 51 Franklin Street, Fifth Floor,
+- * Boston, MA 02110-1301, USA.
+- *
+- *    As a special exception, if you link this library with files
+- *    compiled with GCC to produce an executable, this does not cause
+- *    the resulting executable to be covered by the GNU General Public License.
+- *    This exception does not however invalidate any other reasons why
+- *    the executable file might be covered by the GNU General Public License.
+- */
+-
+-#include <asm/ppc_asm.h>
+-
+-      .file   "crtsavres.S"
+-      .section ".text"
+-
+-#ifdef CONFIG_CC_OPTIMIZE_FOR_SIZE
+-
+-/* Routines for saving integer registers, called by the compiler.  */
+-/* Called with r11 pointing to the stack header word of the caller of the */
+-/* function, just beyond the end of the integer save area.  */
+-
+-_GLOBAL(_savegpr_14)
+-_GLOBAL(_save32gpr_14)
+-      stw     14,-72(11)      /* save gp registers */
+-_GLOBAL(_savegpr_15)
+-_GLOBAL(_save32gpr_15)
+-      stw     15,-68(11)
+-_GLOBAL(_savegpr_16)
+-_GLOBAL(_save32gpr_16)
+-      stw     16,-64(11)
+-_GLOBAL(_savegpr_17)
+-_GLOBAL(_save32gpr_17)
+-      stw     17,-60(11)
+-_GLOBAL(_savegpr_18)
+-_GLOBAL(_save32gpr_18)
+-      stw     18,-56(11)
+-_GLOBAL(_savegpr_19)
+-_GLOBAL(_save32gpr_19)
+-      stw     19,-52(11)
+-_GLOBAL(_savegpr_20)
+-_GLOBAL(_save32gpr_20)
+-      stw     20,-48(11)
+-_GLOBAL(_savegpr_21)
+-_GLOBAL(_save32gpr_21)
+-      stw     21,-44(11)
+-_GLOBAL(_savegpr_22)
+-_GLOBAL(_save32gpr_22)
+-      stw     22,-40(11)
+-_GLOBAL(_savegpr_23)
+-_GLOBAL(_save32gpr_23)
+-      stw     23,-36(11)
+-_GLOBAL(_savegpr_24)
+-_GLOBAL(_save32gpr_24)
+-      stw     24,-32(11)
+-_GLOBAL(_savegpr_25)
+-_GLOBAL(_save32gpr_25)
+-      stw     25,-28(11)
+-_GLOBAL(_savegpr_26)
+-_GLOBAL(_save32gpr_26)
+-      stw     26,-24(11)
+-_GLOBAL(_savegpr_27)
+-_GLOBAL(_save32gpr_27)
+-      stw     27,-20(11)
+-_GLOBAL(_savegpr_28)
+-_GLOBAL(_save32gpr_28)
+-      stw     28,-16(11)
+-_GLOBAL(_savegpr_29)
+-_GLOBAL(_save32gpr_29)
+-      stw     29,-12(11)
+-_GLOBAL(_savegpr_30)
+-_GLOBAL(_save32gpr_30)
+-      stw     30,-8(11)
+-_GLOBAL(_savegpr_31)
+-_GLOBAL(_save32gpr_31)
+-      stw     31,-4(11)
+-      blr
+-
+-/* Routines for restoring integer registers, called by the compiler.  */
+-/* Called with r11 pointing to the stack header word of the caller of the */
+-/* function, just beyond the end of the integer restore area.  */
+-
+-_GLOBAL(_restgpr_14)
+-_GLOBAL(_rest32gpr_14)
+-      lwz     14,-72(11)      /* restore gp registers */
+-_GLOBAL(_restgpr_15)
+-_GLOBAL(_rest32gpr_15)
+-      lwz     15,-68(11)
+-_GLOBAL(_restgpr_16)
+-_GLOBAL(_rest32gpr_16)
+-      lwz     16,-64(11)
+-_GLOBAL(_restgpr_17)
+-_GLOBAL(_rest32gpr_17)
+-      lwz     17,-60(11)
+-_GLOBAL(_restgpr_18)
+-_GLOBAL(_rest32gpr_18)
+-      lwz     18,-56(11)
+-_GLOBAL(_restgpr_19)
+-_GLOBAL(_rest32gpr_19)
+-      lwz     19,-52(11)
+-_GLOBAL(_restgpr_20)
+-_GLOBAL(_rest32gpr_20)
+-      lwz     20,-48(11)
+-_GLOBAL(_restgpr_21)
+-_GLOBAL(_rest32gpr_21)
+-      lwz     21,-44(11)
+-_GLOBAL(_restgpr_22)
+-_GLOBAL(_rest32gpr_22)
+-      lwz     22,-40(11)
+-_GLOBAL(_restgpr_23)
+-_GLOBAL(_rest32gpr_23)
+-      lwz     23,-36(11)
+-_GLOBAL(_restgpr_24)
+-_GLOBAL(_rest32gpr_24)
+-      lwz     24,-32(11)
+-_GLOBAL(_restgpr_25)
+-_GLOBAL(_rest32gpr_25)
+-      lwz     25,-28(11)
+-_GLOBAL(_restgpr_26)
+-_GLOBAL(_rest32gpr_26)
+-      lwz     26,-24(11)
+-_GLOBAL(_restgpr_27)
+-_GLOBAL(_rest32gpr_27)
+-      lwz     27,-20(11)
+-_GLOBAL(_restgpr_28)
+-_GLOBAL(_rest32gpr_28)
+-      lwz     28,-16(11)
+-_GLOBAL(_restgpr_29)
+-_GLOBAL(_rest32gpr_29)
+-      lwz     29,-12(11)
+-_GLOBAL(_restgpr_30)
+-_GLOBAL(_rest32gpr_30)
+-      lwz     30,-8(11)
+-_GLOBAL(_restgpr_31)
+-_GLOBAL(_rest32gpr_31)
+-      lwz     31,-4(11)
+-      blr
+-
+-/* Routines for restoring integer registers, called by the compiler.  */
+-/* Called with r11 pointing to the stack header word of the caller of the */
+-/* function, just beyond the end of the integer restore area.  */
+-
+-_GLOBAL(_restgpr_14_x)
+-_GLOBAL(_rest32gpr_14_x)
+-      lwz     14,-72(11)      /* restore gp registers */
+-_GLOBAL(_restgpr_15_x)
+-_GLOBAL(_rest32gpr_15_x)
+-      lwz     15,-68(11)
+-_GLOBAL(_restgpr_16_x)
+-_GLOBAL(_rest32gpr_16_x)
+-      lwz     16,-64(11)
+-_GLOBAL(_restgpr_17_x)
+-_GLOBAL(_rest32gpr_17_x)
+-      lwz     17,-60(11)
+-_GLOBAL(_restgpr_18_x)
+-_GLOBAL(_rest32gpr_18_x)
+-      lwz     18,-56(11)
+-_GLOBAL(_restgpr_19_x)
+-_GLOBAL(_rest32gpr_19_x)
+-      lwz     19,-52(11)
+-_GLOBAL(_restgpr_20_x)
+-_GLOBAL(_rest32gpr_20_x)
+-      lwz     20,-48(11)
+-_GLOBAL(_restgpr_21_x)
+-_GLOBAL(_rest32gpr_21_x)
+-      lwz     21,-44(11)
+-_GLOBAL(_restgpr_22_x)
+-_GLOBAL(_rest32gpr_22_x)
+-      lwz     22,-40(11)
+-_GLOBAL(_restgpr_23_x)
+-_GLOBAL(_rest32gpr_23_x)
+-      lwz     23,-36(11)
+-_GLOBAL(_restgpr_24_x)
+-_GLOBAL(_rest32gpr_24_x)
+-      lwz     24,-32(11)
+-_GLOBAL(_restgpr_25_x)
+-_GLOBAL(_rest32gpr_25_x)
+-      lwz     25,-28(11)
+-_GLOBAL(_restgpr_26_x)
+-_GLOBAL(_rest32gpr_26_x)
+-      lwz     26,-24(11)
+-_GLOBAL(_restgpr_27_x)
+-_GLOBAL(_rest32gpr_27_x)
+-      lwz     27,-20(11)
+-_GLOBAL(_restgpr_28_x)
+-_GLOBAL(_rest32gpr_28_x)
+-      lwz     28,-16(11)
+-_GLOBAL(_restgpr_29_x)
+-_GLOBAL(_rest32gpr_29_x)
+-      lwz     29,-12(11)
+-_GLOBAL(_restgpr_30_x)
+-_GLOBAL(_rest32gpr_30_x)
+-      lwz     30,-8(11)
+-_GLOBAL(_restgpr_31_x)
+-_GLOBAL(_rest32gpr_31_x)
+-      lwz     0,4(11)
+-      lwz     31,-4(11)
+-      mtlr    0
+-      mr      1,11
+-      blr
+-#endif
+--- a/arch/powerpc/lib/Makefile
++++ b/arch/powerpc/lib/Makefile
+@@ -13,7 +13,7 @@ CFLAGS_REMOVE_feature-fixups.o = -pg
+ 
+ obj-y                 := string.o alloc.o \
+                          checksum_$(CONFIG_WORD_SIZE).o
+-obj-$(CONFIG_PPC32)   += div64.o copy_32.o crtsavres.o
++obj-$(CONFIG_PPC32)   += div64.o copy_32.o
+ obj-$(CONFIG_HAS_IOMEM)       += devres.o
+ 
+ obj-$(CONFIG_PPC64)   += copypage_64.o copyuser_64.o \
+--- a/arch/powerpc/Makefile
++++ b/arch/powerpc/Makefile
+@@ -92,8 +92,6 @@ endif
+ else
+       KBUILD_CFLAGS += $(call cc-option,-mtune=power4)
+ endif
+-else
+-LDFLAGS_MODULE        += arch/powerpc/lib/crtsavres.o
+ endif
+ 
+ ifeq ($(CONFIG_TUNE_CELL),y)

diff --git a/target/linux/generic-2.6/patches-2.6.32/960-arm_lzma_loader.patch b/target/linux/generic-2.6/patches-2.6.32/960-arm_lzma_loader.patch
new file mode 100644 (file)
index 0000000..5f4f287
--- /dev/null
+++ b/target/linux/generic-2.6/patches-2.6.32/960-arm_lzma_loader.patch
@@ -0,0 +1,710 @@
+--- a/arch/arm/boot/compressed/Makefile
++++ b/arch/arm/boot/compressed/Makefile
+@@ -63,7 +63,7 @@ endif
+ 
+ SEDFLAGS      = s/TEXT_START/$(ZTEXTADDR)/;s/BSS_START/$(ZBSSADDR)/
+ 
+-targets       := vmlinux vmlinux.lds piggy.gz piggy.o font.o font.c \
++targets       := vmlinux vmlinux.lds piggy.lzma piggy.o font.o font.c \
+                head.o misc.o $(OBJS)
+ 
+ ifeq ($(CONFIG_FUNCTION_TRACER),y)
+@@ -99,10 +99,10 @@ $(obj)/vmlinux: $(obj)/vmlinux.lds $(obj
+       $(call if_changed,ld)
+       @:
+ 
+-$(obj)/piggy.gz: $(obj)/../Image FORCE
+-      $(call if_changed,gzip)
++$(obj)/piggy.lzma: $(obj)/../Image FORCE
++      $(call if_changed,lzma)
+ 
+-$(obj)/piggy.o:  $(obj)/piggy.gz FORCE
++$(obj)/piggy.o:  $(obj)/piggy.lzma FORCE
+ 
+ CFLAGS_font.o := -Dstatic=
+ 
+--- a/arch/arm/boot/compressed/misc.c
++++ b/arch/arm/boot/compressed/misc.c
+@@ -185,36 +185,10 @@ static inline __ptr_t memcpy(__ptr_t __d
+       return __dest;
+ }
+ 
+-/*
+- * gzip delarations
+- */
+-#define OF(args)  args
+-#define STATIC static
+-
+-typedef unsigned char  uch;
+-typedef unsigned short ush;
+-typedef unsigned long  ulg;
+-
+-#define WSIZE 0x8000          /* Window size must be at least 32k, */
++#define WSIZE 0x20000         /* Window size must be at least 128k, */
+                               /* and a power of two */
+ 
+-static uch *inbuf;            /* input buffer */
+-static uch window[WSIZE];     /* Sliding window buffer */
+-
+-static unsigned insize;               /* valid bytes in inbuf */
+-static unsigned inptr;                /* index of next byte to be processed in inbuf */
+-static unsigned outcnt;               /* bytes in output buffer */
+-
+-/* gzip flag byte */
+-#define ASCII_FLAG   0x01 /* bit 0 set: file probably ascii text */
+-#define CONTINUATION 0x02 /* bit 1 set: continuation of multi-part gzip file */
+-#define EXTRA_FIELD  0x04 /* bit 2 set: extra field present */
+-#define ORIG_NAME    0x08 /* bit 3 set: original file name present */
+-#define COMMENT      0x10 /* bit 4 set: file comment present */
+-#define ENCRYPTED    0x20 /* bit 5 set: file is encrypted */
+-#define RESERVED     0xC0 /* bit 6,7:   reserved */
+-
+-#define get_byte()  (inptr < insize ? inbuf[inptr++] : fill_inbuf())
++static u8 window[WSIZE];      /* Sliding window buffer */
+ 
+ /* Diagnostic functions */
+ #ifdef DEBUG
+@@ -233,24 +207,21 @@ static unsigned outcnt;          /* bytes in out
+ #  define Tracecv(c,x)
+ #endif
+ 
+-static int  fill_inbuf(void);
+-static void flush_window(void);
+ static void error(char *m);
+ 
+ extern char input_data[];
+ extern char input_data_end[];
+ 
+-static uch *output_data;
+-static ulg output_ptr;
+-static ulg bytes_out;
++static unsigned long output_ptr;
++static unsigned long bytes_out;
+ 
+ static void error(char *m);
+ 
+ static void putstr(const char *);
+ 
+ extern int end;
+-static ulg free_mem_ptr;
+-static ulg free_mem_end_ptr;
++static unsigned long free_mem_ptr;
++static unsigned long free_mem_end_ptr;
+ 
+ #ifdef STANDALONE_DEBUG
+ #define NO_INFLATE_MALLOC
+@@ -258,50 +229,10 @@ static ulg free_mem_end_ptr;
+ 
+ #define ARCH_HAS_DECOMP_WDOG
+ 
+-#include "../../../../lib/inflate.c"
+-
+-/* ===========================================================================
+- * Fill the input buffer. This is called only when the buffer is empty
+- * and at least one byte is really needed.
+- */
+-int fill_inbuf(void)
+-{
+-      if (insize != 0)
+-              error("ran out of input data");
+-
+-      inbuf = input_data;
+-      insize = &input_data_end[0] - &input_data[0];
+-
+-      inptr = 1;
+-      return inbuf[0];
+-}
+-
+-/* ===========================================================================
+- * Write the output window window[0..outcnt-1] and update crc and bytes_out.
+- * (Used for the decompressed data only.)
+- */
+-void flush_window(void)
+-{
+-      ulg c = crc;
+-      unsigned n;
+-      uch *in, *out, ch;
+-
+-      in = window;
+-      out = &output_data[output_ptr];
+-      for (n = 0; n < outcnt; n++) {
+-              ch = *out++ = *in++;
+-              c = crc_32_tab[((int)c ^ ch) & 0xff] ^ (c >> 8);
+-      }
+-      crc = c;
+-      bytes_out += (ulg)outcnt;
+-      output_ptr += (ulg)outcnt;
+-      outcnt = 0;
+-      putstr(".");
+-}
+-
+ #ifndef arch_error
+ #define arch_error(x)
+ #endif
++#include "unlzma.c"
+ 
+ static void error(char *x)
+ {
+@@ -316,20 +247,16 @@ static void error(char *x)
+ 
+ #ifndef STANDALONE_DEBUG
+ 
+-ulg
+-decompress_kernel(ulg output_start, ulg free_mem_ptr_p, ulg free_mem_ptr_end_p,
++unsigned long
++decompress_kernel(unsigned long output_start, unsigned long free_mem_ptr_p, unsigned long free_mem_ptr_end_p,
+                 int arch_id)
+ {
+-      output_data             = (uch *)output_start;  /* Points to kernel start */
+-      free_mem_ptr            = free_mem_ptr_p;
+-      free_mem_end_ptr        = free_mem_ptr_end_p;
+       __machine_arch_type     = arch_id;
+ 
+       arch_decomp_setup();
+ 
+-      makecrc();
+       putstr("Uncompressing Linux...");
+-      gunzip();
++      output_ptr += unlzma((u8 *) output_start, input_data, window);
+       putstr(" done, booting the kernel.\n");
+       return output_ptr;
+ }
+@@ -339,11 +266,8 @@ char output_buffer[1500*1024];
+ 
+ int main()
+ {
+-      output_data = output_buffer;
+-
+-      makecrc();
+       putstr("Uncompressing Linux...");
+-      gunzip();
++      unlzma((u8 *) output_buffer, input_data, window);
+       putstr("done.\n");
+       return 0;
+ }
+--- a/arch/arm/boot/compressed/piggy.S
++++ b/arch/arm/boot/compressed/piggy.S
+@@ -1,6 +1,6 @@
+       .section .piggydata,#alloc
+       .globl  input_data
+ input_data:
+-      .incbin "arch/arm/boot/compressed/piggy.gz"
++      .incbin "arch/arm/boot/compressed/piggy.lzma"
+       .globl  input_data_end
+ input_data_end:
+--- /dev/null
++++ b/arch/arm/boot/compressed/unlzma.c
+@@ -0,0 +1,429 @@
++/*
++ * Copyright (c) 2009  Felix Fietkau <nbd@openwrt.org>
++ *
++ * 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,
++ * or (at your option) any later version.
++ *
++ * This program is distributed in the hope that 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, 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
++ *
++ * uncompress.c
++ */
++
++#include <linux/types.h>
++#include <asm/byteorder.h>
++#include "unlzma.h"
++
++struct unlzma_ctx {
++      const u8 *next_in;
++      u8 *next_out;
++      u8 *outbuf;
++
++      /* reader state */
++      u32 code;
++      u32 range;
++      u32 bound;
++
++      /* writer state */
++      u8 previous_byte;
++      ssize_t pos;
++
++      /* cstate */
++      int state;
++      u32 rep0, rep1, rep2, rep3;
++
++      void *workspace;
++} ctx;
++
++static int inbs = 0;
++static inline u8
++rc_read(void)
++{
++#if 0
++      if (unlikely(++inbs > 16 * 1024)) {
++              putstr(".");
++              inbs = 0;
++      }
++#endif
++      return *(ctx.next_in++);
++}
++
++
++static inline void
++rc_get_code(void)
++{
++      ctx.code = (ctx.code << 8) | rc_read();
++}
++
++static inline void
++rc_normalize(void)
++{
++      if (ctx.range < (1 << RC_TOP_BITS)) {
++              ctx.range <<= 8;
++              rc_get_code();
++      }
++}
++
++static inline int
++rc_is_bit_0(u16 *p)
++{
++      rc_normalize();
++      ctx.bound = *p * (ctx.range >> RC_MODEL_TOTAL_BITS);
++      return ctx.code < ctx.bound;
++}
++
++static inline void
++rc_update_bit_0(u16 *p)
++{
++      ctx.range = ctx.bound;
++      *p += ((1 << RC_MODEL_TOTAL_BITS) - *p) >> RC_MOVE_BITS;
++}
++
++static inline void
++rc_update_bit_1(u16 *p)
++{
++      ctx.range -= ctx.bound;
++      ctx.code -= ctx.bound;
++      *p -= *p >> RC_MOVE_BITS;
++}
++
++static inline bool
++rc_get_bit(u16 *p, int *symbol)
++{
++      if (rc_is_bit_0(p)) {
++              rc_update_bit_0(p);
++              *symbol *= 2;
++              return 0;
++      } else {
++              rc_update_bit_1(p);
++              *symbol = *symbol * 2 + 1;
++              return 1;
++      }
++}
++
++static inline int
++rc_direct_bit(void)
++{
++      rc_normalize();
++      ctx.range >>= 1;
++      if (ctx.code >= ctx.range) {
++              ctx.code -= ctx.range;
++              return 1;
++      }
++      return 0;
++}
++
++static inline void
++rc_bit_tree_decode(u16 *p, int num_levels, int *symbol)
++{
++      int i = num_levels;
++
++      *symbol = 1;
++      while (i--)
++              rc_get_bit(p + *symbol, symbol);
++      *symbol -= 1 << num_levels;
++}
++
++static inline u8
++peek_old_byte(u32 offs)
++{
++      u32 pos = ctx.pos - offs;
++      return ctx.outbuf[pos];
++}
++
++static inline void
++write_byte(u8 byte)
++{
++      ctx.previous_byte = byte;
++      *(ctx.next_out++) = byte;
++      ctx.pos++;
++}
++
++
++static inline void
++copy_byte(u32 offs)
++{
++      write_byte(peek_old_byte(offs));
++}
++
++static inline void
++copy_bytes(u32 rep0, int len)
++{
++      do {
++              copy_byte(rep0);
++              len--;
++      } while (len != 0);
++}
++
++static inline void
++process_bit0(u16 *p, int pos_state, u16 *prob,
++             int lc, u32 literal_pos_mask)
++{
++      int mi = 1;
++      rc_update_bit_0(prob);
++      prob = (p + LZMA_LITERAL +
++              (LZMA_LIT_SIZE
++               * (((ctx.pos & literal_pos_mask) << lc)
++                  + (ctx.previous_byte >> (8 - lc))))
++              );
++
++      if (ctx.state >= LZMA_NUM_LIT_STATES) {
++              int match_byte = peek_old_byte(ctx.rep0);
++              do {
++                      u16 bit;
++                      u16 *prob_lit;
++
++                      match_byte <<= 1;
++                      bit = match_byte & 0x100;
++                      prob_lit = prob + 0x100 + bit + mi;
++                      if (rc_get_bit(prob_lit, &mi) != !!bit)
++                              break;
++              } while (mi < 0x100);
++      }
++      while (mi < 0x100) {
++              u16 *prob_lit = prob + mi;
++              rc_get_bit(prob_lit, &mi);
++      }
++      write_byte(mi);
++      if (ctx.state < 4)
++              ctx.state = 0;
++      else if (ctx.state < 10)
++              ctx.state -= 3;
++      else
++              ctx.state -= 6;
++}
++
++static inline void
++process_bit1(u16 *p, int pos_state, u16 *prob)
++{
++      int offset;
++      u16 *prob_len;
++      int num_bits;
++      int len;
++
++      rc_update_bit_1(prob);
++      prob = p + LZMA_IS_REP + ctx.state;
++      if (rc_is_bit_0(prob)) {
++              rc_update_bit_0(prob);
++              ctx.rep3 = ctx.rep2;
++              ctx.rep2 = ctx.rep1;
++              ctx.rep1 = ctx.rep0;
++              ctx.state = ctx.state < LZMA_NUM_LIT_STATES ? 0 : 3;
++              prob = p + LZMA_LEN_CODER;
++      } else {
++              rc_update_bit_1(prob);
++              prob = p + LZMA_IS_REP_G0 + ctx.state;
++              if (rc_is_bit_0(prob)) {
++                      rc_update_bit_0(prob);
++                      prob = (p + LZMA_IS_REP_0_LONG
++                              + (ctx.state <<
++                                 LZMA_NUM_POS_BITS_MAX) +
++                              pos_state);
++                      if (rc_is_bit_0(prob)) {
++                              rc_update_bit_0(prob);
++
++                              ctx.state = ctx.state < LZMA_NUM_LIT_STATES ?
++                                      9 : 11;
++                              copy_byte(ctx.rep0);
++                              return;
++                      } else {
++                              rc_update_bit_1(prob);
++                      }
++              } else {
++                      u32 distance;
++
++                      rc_update_bit_1(prob);
++                      prob = p + LZMA_IS_REP_G1 + ctx.state;
++                      if (rc_is_bit_0(prob)) {
++                              rc_update_bit_0(prob);
++                              distance = ctx.rep1;
++                      } else {
++                              rc_update_bit_1(prob);
++                              prob = p + LZMA_IS_REP_G2 + ctx.state;
++                              if (rc_is_bit_0(prob)) {
++                                      rc_update_bit_0(prob);
++                                      distance = ctx.rep2;
++                              } else {
++                                      rc_update_bit_1(prob);
++                                      distance = ctx.rep3;
++                                      ctx.rep3 = ctx.rep2;
++                              }
++                              ctx.rep2 = ctx.rep1;
++                      }
++                      ctx.rep1 = ctx.rep0;
++                      ctx.rep0 = distance;
++              }
++              ctx.state = ctx.state < LZMA_NUM_LIT_STATES ? 8 : 11;
++              prob = p + LZMA_REP_LEN_CODER;
++      }
++
++      prob_len = prob + LZMA_LEN_CHOICE;
++      if (rc_is_bit_0(prob_len)) {
++              rc_update_bit_0(prob_len);
++              prob_len = (prob + LZMA_LEN_LOW
++                          + (pos_state <<
++                             LZMA_LEN_NUM_LOW_BITS));
++              offset = 0;
++              num_bits = LZMA_LEN_NUM_LOW_BITS;
++      } else {
++              rc_update_bit_1(prob_len);
++              prob_len = prob + LZMA_LEN_CHOICE_2;
++              if (rc_is_bit_0(prob_len)) {
++                      rc_update_bit_0(prob_len);
++                      prob_len = (prob + LZMA_LEN_MID
++                                  + (pos_state <<
++                                     LZMA_LEN_NUM_MID_BITS));
++                      offset = 1 << LZMA_LEN_NUM_LOW_BITS;
++                      num_bits = LZMA_LEN_NUM_MID_BITS;
++              } else {
++                      rc_update_bit_1(prob_len);
++                      prob_len = prob + LZMA_LEN_HIGH;
++                      offset = ((1 << LZMA_LEN_NUM_LOW_BITS)
++                                + (1 << LZMA_LEN_NUM_MID_BITS));
++                      num_bits = LZMA_LEN_NUM_HIGH_BITS;
++              }
++      }
++
++      rc_bit_tree_decode(prob_len, num_bits, &len);
++      len += offset;
++
++      if (ctx.state < 4) {
++              int pos_slot;
++
++              ctx.state += LZMA_NUM_LIT_STATES;
++              prob =
++                      p + LZMA_POS_SLOT +
++                      ((len <
++                        LZMA_NUM_LEN_TO_POS_STATES ? len :
++                        LZMA_NUM_LEN_TO_POS_STATES - 1)
++                       << LZMA_NUM_POS_SLOT_BITS);
++              rc_bit_tree_decode(prob,
++                                 LZMA_NUM_POS_SLOT_BITS,
++                                 &pos_slot);
++              if (pos_slot >= LZMA_START_POS_MODEL_INDEX) {
++                      int i, mi;
++                      num_bits = (pos_slot >> 1) - 1;
++                      ctx.rep0 = 2 | (pos_slot & 1);
++                      if (pos_slot < LZMA_END_POS_MODEL_INDEX) {
++                              ctx.rep0 <<= num_bits;
++                              prob = p + LZMA_SPEC_POS +
++                                      ctx.rep0 - pos_slot - 1;
++                      } else {
++                              num_bits -= LZMA_NUM_ALIGN_BITS;
++                              while (num_bits--)
++                                      ctx.rep0 = (ctx.rep0 << 1) |
++                                              rc_direct_bit();
++                              prob = p + LZMA_ALIGN;
++                              ctx.rep0 <<= LZMA_NUM_ALIGN_BITS;
++                              num_bits = LZMA_NUM_ALIGN_BITS;
++                      }
++                      i = 1;
++                      mi = 1;
++                      while (num_bits--) {
++                              if (rc_get_bit(prob + mi, &mi))
++                                      ctx.rep0 |= i;
++                              i <<= 1;
++                      }
++              } else
++                      ctx.rep0 = pos_slot;
++              if (++(ctx.rep0) == 0)
++                      return;
++      }
++
++      len += LZMA_MATCH_MIN_LEN;
++
++      copy_bytes(ctx.rep0, len);
++}
++
++
++static int
++do_unlzma(void)
++{
++      u8 hdr_buf[sizeof(struct lzma_header)];
++      struct lzma_header *header = (struct lzma_header *)hdr_buf;
++      u32 pos_state_mask;
++      u32 literal_pos_mask;
++      int lc, pb, lp;
++      int num_probs;
++      int i, mi;
++      u16 *p;
++
++      for (i = 0; i < sizeof(struct lzma_header); i++) {
++              hdr_buf[i] = rc_read();
++      }
++
++      ctx.pos = 0;
++      ctx.state = 0;
++      ctx.rep0 = ctx.rep1 = ctx.rep2 = ctx.rep3 = 1;
++
++      ctx.previous_byte = 0;
++      ctx.code = 0;
++      ctx.range = 0xFFFFFFFF;
++
++      if (header->pos >= (9 * 5 * 5))
++              return -1;
++
++      mi = 0;
++      lc = header->pos;
++      while (lc >= 9) {
++              mi++;
++              lc -= 9;
++      }
++      pb = 0;
++      lp = mi;
++      while (lp >= 5) {
++              pb++;
++              lp -= 5;
++      }
++      pos_state_mask = (1 << pb) - 1;
++      literal_pos_mask = (1 << lp) - 1;
++
++      p = (u16 *) ctx.workspace;
++      if (!p)
++              return -1;
++
++      num_probs = LZMA_LITERAL + (LZMA_LIT_SIZE << (lc + lp));
++      for (i = 0; i < num_probs; i++)
++              p[i] = (1 << RC_MODEL_TOTAL_BITS) >> 1;
++
++      for (i = 0; i < 5; i++)
++              rc_get_code();
++
++      while (1) {
++              int pos_state = ctx.pos & pos_state_mask;
++              u16 *prob = p + LZMA_IS_MATCH +
++                      (ctx.state << LZMA_NUM_POS_BITS_MAX) + pos_state;
++              if (rc_is_bit_0(prob))
++                      process_bit0(p, pos_state, prob,
++                                   lc, literal_pos_mask);
++              else {
++                      process_bit1(p, pos_state, prob);
++                      if (ctx.rep0 == 0)
++                              break;
++              }
++      }
++
++      return ctx.pos;
++}
++
++
++static int unlzma(unsigned char *dest, const unsigned char *src, unsigned char *workspace)
++{
++      memset(&ctx, 0, sizeof(ctx));
++      ctx.outbuf = dest;
++      ctx.next_in = src;
++      ctx.next_out = dest;
++      ctx.workspace = workspace;
++
++      return do_unlzma();
++}
++
++
+--- /dev/null
++++ b/arch/arm/boot/compressed/unlzma.h
+@@ -0,0 +1,81 @@
++/* LZMA uncompresion module for pcomp
++ * Copyright (C) 2009  Felix Fietkau <nbd@openwrt.org>
++ *
++ * Based on:
++ *  Initial Linux kernel adaptation
++ *  Copyright (C) 2006  Alain < alain@knaff.lu >
++ *
++ *  Based on small lzma deflate implementation/Small range coder
++ *  implementation for lzma.
++ *  Copyright (C) 2006  Aurelien Jacobs < aurel@gnuage.org >
++ *
++ *  Based on LzmaDecode.c from the LZMA SDK 4.22 (http://www.7-zip.org/)
++ *  Copyright (C) 1999-2005  Igor Pavlov
++ *
++ * 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 __UNLZMA_H
++#define __UNLZMA_H
++
++struct lzma_header {
++      __u8 pos;
++      __le32 dict_size;
++      __le64 uncompr_size;
++} __attribute__ ((packed));
++
++
++#define RC_TOP_BITS 24
++#define RC_MOVE_BITS 5
++#define RC_MODEL_TOTAL_BITS 11
++
++#define LZMA_BASE_SIZE 1846
++#define LZMA_LIT_SIZE 768
++
++#define LZMA_NUM_POS_BITS_MAX 4
++
++#define LZMA_LEN_NUM_LOW_BITS 3
++#define LZMA_LEN_NUM_MID_BITS 3
++#define LZMA_LEN_NUM_HIGH_BITS 8
++
++#define LZMA_LEN_CHOICE 0
++#define LZMA_LEN_CHOICE_2 (LZMA_LEN_CHOICE + 1)
++#define LZMA_LEN_LOW (LZMA_LEN_CHOICE_2 + 1)
++#define LZMA_LEN_MID (LZMA_LEN_LOW \
++                    + (1 << (LZMA_NUM_POS_BITS_MAX + LZMA_LEN_NUM_LOW_BITS)))
++#define LZMA_LEN_HIGH (LZMA_LEN_MID \
++                     +(1 << (LZMA_NUM_POS_BITS_MAX + LZMA_LEN_NUM_MID_BITS)))
++#define LZMA_NUM_LEN_PROBS (LZMA_LEN_HIGH + (1 << LZMA_LEN_NUM_HIGH_BITS))
++
++#define LZMA_NUM_STATES 12
++#define LZMA_NUM_LIT_STATES 7
++
++#define LZMA_START_POS_MODEL_INDEX 4
++#define LZMA_END_POS_MODEL_INDEX 14
++#define LZMA_NUM_FULL_DISTANCES (1 << (LZMA_END_POS_MODEL_INDEX >> 1))
++
++#define LZMA_NUM_POS_SLOT_BITS 6
++#define LZMA_NUM_LEN_TO_POS_STATES 4
++
++#define LZMA_NUM_ALIGN_BITS 4
++
++#define LZMA_MATCH_MIN_LEN 2
++
++#define LZMA_IS_MATCH 0
++#define LZMA_IS_REP (LZMA_IS_MATCH + (LZMA_NUM_STATES << LZMA_NUM_POS_BITS_MAX))
++#define LZMA_IS_REP_G0 (LZMA_IS_REP + LZMA_NUM_STATES)
++#define LZMA_IS_REP_G1 (LZMA_IS_REP_G0 + LZMA_NUM_STATES)
++#define LZMA_IS_REP_G2 (LZMA_IS_REP_G1 + LZMA_NUM_STATES)
++#define LZMA_IS_REP_0_LONG (LZMA_IS_REP_G2 + LZMA_NUM_STATES)
++#define LZMA_POS_SLOT (LZMA_IS_REP_0_LONG \
++                     + (LZMA_NUM_STATES << LZMA_NUM_POS_BITS_MAX))
++#define LZMA_SPEC_POS (LZMA_POS_SLOT \
++                     +(LZMA_NUM_LEN_TO_POS_STATES << LZMA_NUM_POS_SLOT_BITS))
++#define LZMA_ALIGN (LZMA_SPEC_POS \
++                  + LZMA_NUM_FULL_DISTANCES - LZMA_END_POS_MODEL_INDEX)
++#define LZMA_LEN_CODER (LZMA_ALIGN + (1 << LZMA_NUM_ALIGN_BITS))
++#define LZMA_REP_LEN_CODER (LZMA_LEN_CODER + LZMA_NUM_LEN_PROBS)
++#define LZMA_LITERAL (LZMA_REP_LEN_CODER + LZMA_NUM_LEN_PROBS)
++
++#endif

diff --git a/target/linux/generic-2.6/patches-2.6.32/970-ocf_kbuild_integration.patch b/target/linux/generic-2.6/patches-2.6.32/970-ocf_kbuild_integration.patch
new file mode 100644 (file)
index 0000000..09ad252
--- /dev/null
+++ b/target/linux/generic-2.6/patches-2.6.32/970-ocf_kbuild_integration.patch
@@ -0,0 +1,25 @@
+--- a/crypto/Kconfig
++++ b/crypto/Kconfig
+@@ -810,6 +810,8 @@ config CRYPTO_ANSI_CPRNG
+         ANSI X9.31 A.2.4. Not this option must be enabled if CRYPTO_FIPS 
+         is selected
+ 
++source "crypto/ocf/Kconfig"
++
+ source "drivers/crypto/Kconfig"
+ 
+ endif # if CRYPTO
+--- a/crypto/Makefile
++++ b/crypto/Makefile
+@@ -86,6 +86,11 @@ obj-$(CONFIG_CRYPTO_TEST) += tcrypt.o
+ obj-$(CONFIG_CRYPTO_GHASH) += ghash-generic.o
+ 
+ #
++# OCF
++#
++obj-$(CONFIG_OCF_OCF) += ocf/
++
++#
+ # generic algorithms and the async_tx api
+ #
+ obj-$(CONFIG_XOR_BLOCKS) += xor.o

diff --git a/target/linux/generic-2.6/patches-2.6.32/971-ocf_20080917.patch b/target/linux/generic-2.6/patches-2.6.32/971-ocf_20080917.patch
new file mode 100644 (file)
index 0000000..669be1a
--- /dev/null
+++ b/target/linux/generic-2.6/patches-2.6.32/971-ocf_20080917.patch
@@ -0,0 +1,152 @@
+--- a/drivers/char/random.c
++++ b/drivers/char/random.c
+@@ -129,6 +129,9 @@
+  *                                unsigned int value);
+  *    void add_interrupt_randomness(int irq);
+  *
++ *      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.
+  *
+@@ -140,6 +143,13 @@
+  * a better measure, since the timing of the disk interrupts are more
+  * unpredictable.
+  *
++ * 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.
+@@ -714,6 +724,61 @@ 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);
++
++
+ #define EXTRACT_SIZE 10
+ 
+ /*********************************************************************
+--- a/fs/fcntl.c
++++ b/fs/fcntl.c
+@@ -141,6 +141,7 @@ 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
+@@ -12,6 +12,7 @@
+ #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
+@@ -34,6 +34,30 @@
+ /* 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;
+@@ -50,6 +74,10 @@ 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]);
+ 

diff --git a/target/linux/generic-2.6/patches-2.6.32/972-ocf_compile_fix.patch b/target/linux/generic-2.6/patches-2.6.32/972-ocf_compile_fix.patch
new file mode 100644 (file)
index 0000000..a3fa226
--- /dev/null
+++ b/target/linux/generic-2.6/patches-2.6.32/972-ocf_compile_fix.patch
@@ -0,0 +1,11 @@
+--- a/crypto/ocf/cryptosoft.c
++++ b/crypto/ocf/cryptosoft.c
+@@ -47,7 +47,7 @@
+ #include <linux/mm.h>
+ #include <linux/skbuff.h>
+ #include <linux/random.h>
+-#include <asm/scatterlist.h>
++#include <linux/scatterlist.h>
+ 
+ #include <cryptodev.h>
+ #include <uio.h>

diff --git a/target/linux/generic-2.6/patches-2.6.32/973-ocf_2.6.27_fix.patch b/target/linux/generic-2.6/patches-2.6.32/973-ocf_2.6.27_fix.patch
new file mode 100644 (file)
index 0000000..ecb9bef
--- /dev/null
+++ b/target/linux/generic-2.6/patches-2.6.32/973-ocf_2.6.27_fix.patch
@@ -0,0 +1,197 @@
+--- a/crypto/ocf/random.c
++++ b/crypto/ocf/random.c
+@@ -49,6 +49,7 @@
+ #include <linux/unistd.h>
+ #include <linux/poll.h>
+ #include <linux/random.h>
++#include <linux/kthread.h>
+ #include <cryptodev.h>
+ 
+ #ifdef CONFIG_OCF_FIPS
+@@ -81,7 +82,7 @@ struct random_op {
+ 
+ static int random_proc(void *arg);
+ 
+-static pid_t          randomproc = (pid_t) -1;
++static struct task_struct *random_task;
+ static spinlock_t     random_lock;
+ 
+ /*
+@@ -141,13 +142,18 @@ crypto_rregister(
+       spin_lock_irqsave(&random_lock, flags);
+       list_add_tail(&rops->random_list, &random_ops);
+       if (!started) {
+-              randomproc = kernel_thread(random_proc, NULL, CLONE_FS|CLONE_FILES);
+-              if (randomproc < 0) {
+-                      ret = randomproc;
++              struct task_struct *t;
++
++              t = kthread_create(random_proc, NULL, "ocf-random");
++              if (IS_ERR(t)) {
++                      ret = PTR_ERR(t);
+                       printk("crypto: crypto_rregister cannot start random thread; "
+                                       "error %d", ret);
+-              } else
++              } else {
++                      random_task = t;
++                      wake_up_process(t);
+                       started = 1;
++              }
+       }
+       spin_unlock_irqrestore(&random_lock, flags);
+ 
+@@ -172,7 +178,7 @@ crypto_runregister_all(u_int32_t driveri
+ 
+       spin_lock_irqsave(&random_lock, flags);
+       if (list_empty(&random_ops) && started)
+-              kill_proc(randomproc, SIGKILL, 1);
++              send_sig(SIGKILL, random_task, 1);
+       spin_unlock_irqrestore(&random_lock, flags);
+       return(0);
+ }
+@@ -308,7 +314,7 @@ random_proc(void *arg)
+ 
+ bad_alloc:
+       spin_lock_irq(&random_lock);
+-      randomproc = (pid_t) -1;
++      random_task = NULL;
+       started = 0;
+       spin_unlock_irq(&random_lock);
+ 
+--- a/crypto/ocf/crypto.c
++++ b/crypto/ocf/crypto.c
+@@ -74,6 +74,7 @@ __FBSDID("$FreeBSD: src/sys/opencrypto/c
+ #include <linux/sched.h>
+ #include <linux/spinlock.h>
+ #include <linux/version.h>
++#include <linux/kthread.h>
+ #include <cryptodev.h>
+ 
+ /*
+@@ -255,10 +256,10 @@ module_param(crypto_devallowsoft, int, 0
+ MODULE_PARM_DESC(crypto_devallowsoft,
+          "Enable/disable use of software crypto support");
+ 
+-static pid_t  cryptoproc = (pid_t) -1;
++static struct task_struct *crypto_task;
+ static struct completion cryptoproc_exited;
+ static DECLARE_WAIT_QUEUE_HEAD(cryptoproc_wait);
+-static pid_t  cryptoretproc = (pid_t) -1;
++static struct task_struct *cryptoret_task;
+ static struct completion cryptoretproc_exited;
+ static DECLARE_WAIT_QUEUE_HEAD(cryptoretproc_wait);
+ 
+@@ -1401,7 +1402,7 @@ crypto_proc(void *arg)
+                       wait_event_interruptible(cryptoproc_wait,
+                                       !(list_empty(&crp_q) || crypto_all_qblocked) ||
+                                       !(list_empty(&crp_kq) || crypto_all_kqblocked) ||
+-                                      cryptoproc == (pid_t) -1);
++                                      crypto_task == NULL);
+                       crp_sleep = 0;
+                       if (signal_pending (current)) {
+ #if LINUX_VERSION_CODE < KERNEL_VERSION(2,6,0)
+@@ -1414,7 +1415,7 @@ crypto_proc(void *arg)
+                       }
+                       CRYPTO_Q_LOCK();
+                       dprintk("%s - awake\n", __FUNCTION__);
+-                      if (cryptoproc == (pid_t) -1)
++                      if (crypto_task == NULL)
+                               break;
+                       cryptostats.cs_intrs++;
+               }
+@@ -1470,7 +1471,7 @@ crypto_ret_proc(void *arg)
+                       dprintk("%s - sleeping\n", __FUNCTION__);
+                       CRYPTO_RETQ_UNLOCK();
+                       wait_event_interruptible(cryptoretproc_wait,
+-                                      cryptoretproc == (pid_t) -1 ||
++                                      cryptoret_task == NULL ||
+                                       !list_empty(&crp_ret_q) ||
+                                       !list_empty(&crp_ret_kq));
+                       if (signal_pending (current)) {
+@@ -1484,7 +1485,7 @@ crypto_ret_proc(void *arg)
+                       }
+                       CRYPTO_RETQ_LOCK();
+                       dprintk("%s - awake\n", __FUNCTION__);
+-                      if (cryptoretproc == (pid_t) -1) {
++                      if (cryptoret_task == NULL) {
+                               dprintk("%s - EXITING!\n", __FUNCTION__);
+                               break;
+                       }
+@@ -1597,6 +1598,7 @@ DB_SHOW_COMMAND(kcrypto, db_show_kcrypto
+ static int
+ crypto_init(void)
+ {
++      struct task_struct *t;
+       int error;
+ 
+       dprintk("%s(0x%x)\n", __FUNCTION__, (int) crypto_init);
+@@ -1643,23 +1645,27 @@ crypto_init(void)
+       init_completion(&cryptoproc_exited);
+       init_completion(&cryptoretproc_exited);
+ 
+-      cryptoproc = 0; /* to avoid race condition where proc runs first */
+-      cryptoproc = kernel_thread(crypto_proc, NULL, CLONE_FS|CLONE_FILES);
+-      if (cryptoproc < 0) {
+-              error = cryptoproc;
++      crypto_task = NULL; /* to avoid race condition where proc runs first */
++      t = kthread_create(crypto_proc, NULL, "ocf-crypto");
++      if (IS_ERR(t)) {
++              error = PTR_ERR(t);
+               printk("crypto: crypto_init cannot start crypto thread; error %d",
+                       error);
+               goto bad;
+       }
++      wake_up_process(t);
++      crypto_task = t;
+ 
+-      cryptoretproc = 0; /* to avoid race condition where proc runs first */
+-      cryptoretproc = kernel_thread(crypto_ret_proc, NULL, CLONE_FS|CLONE_FILES);
+-      if (cryptoretproc < 0) {
+-              error = cryptoretproc;
++      cryptoret_task = NULL; /* to avoid race condition where proc runs first */
++      t = kthread_create(crypto_ret_proc, NULL, "ocf-cryptoret");
++      if (IS_ERR(t)) {
++              error = PTR_ERR(t);
+               printk("crypto: crypto_init cannot start cryptoret thread; error %d",
+                               error);
+               goto bad;
+       }
++      wake_up_process(t);
++      cryptoret_task = t;
+ 
+       return 0;
+ bad:
+@@ -1671,7 +1677,7 @@ bad:
+ static void
+ crypto_exit(void)
+ {
+-      pid_t p;
++      struct task_struct *t;
+       unsigned long d_flags;
+ 
+       dprintk("%s()\n", __FUNCTION__);
+@@ -1681,18 +1687,18 @@ crypto_exit(void)
+        */
+ 
+       CRYPTO_DRIVER_LOCK();
+-      p = cryptoproc;
+-      cryptoproc = (pid_t) -1;
+-      kill_proc(p, SIGTERM, 1);
++      t = crypto_task;
++      crypto_task = NULL;
++      send_sig(SIGTERM, t, 1);
+       wake_up_interruptible(&cryptoproc_wait);
+       CRYPTO_DRIVER_UNLOCK();
+ 
+       wait_for_completion(&cryptoproc_exited);
+ 
+       CRYPTO_DRIVER_LOCK();
+-      p = cryptoretproc;
+-      cryptoretproc = (pid_t) -1;
+-      kill_proc(p, SIGTERM, 1);
++      t = cryptoret_task;
++      cryptoret_task = NULL;
++      send_sig(SIGTERM, t, 1);
+       wake_up_interruptible(&cryptoretproc_wait);
+       CRYPTO_DRIVER_UNLOCK();
+ 

diff --git a/target/linux/generic-2.6/patches-2.6.32/974-ssb_b43_default_on.patch b/target/linux/generic-2.6/patches-2.6.32/974-ssb_b43_default_on.patch
new file mode 100644 (file)
index 0000000..98dde2a
--- /dev/null
+++ b/target/linux/generic-2.6/patches-2.6.32/974-ssb_b43_default_on.patch
@@ -0,0 +1,11 @@
+--- a/drivers/ssb/Kconfig
++++ b/drivers/ssb/Kconfig
+@@ -49,7 +49,7 @@ 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-2.6/patches-2.6.32/977-textsearch_kconfig_hacks.patch b/target/linux/generic-2.6/patches-2.6.32/977-textsearch_kconfig_hacks.patch
new file mode 100644 (file)
index 0000000..97fad7d
--- /dev/null
+++ b/target/linux/generic-2.6/patches-2.6.32/977-textsearch_kconfig_hacks.patch
@@ -0,0 +1,23 @@
+--- a/lib/Kconfig
++++ b/lib/Kconfig
+@@ -148,16 +148,16 @@ config REED_SOLOMON_DEC16
+ # 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 HAS_IOMEM
+       boolean

diff --git a/target/linux/generic-2.6/patches-2.6.32/978-lib80211_kconfig_hacks.patch b/target/linux/generic-2.6/patches-2.6.32/978-lib80211_kconfig_hacks.patch
new file mode 100644 (file)
index 0000000..e0dc636
--- /dev/null
+++ b/target/linux/generic-2.6/patches-2.6.32/978-lib80211_kconfig_hacks.patch
@@ -0,0 +1,19 @@
+--- a/net/wireless/Kconfig
++++ b/net/wireless/Kconfig
+@@ -127,13 +127,13 @@ 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-2.6/patches-2.6.32/979-crypto_add_kconfig_prompts.patch b/target/linux/generic-2.6/patches-2.6.32/979-crypto_add_kconfig_prompts.patch
new file mode 100644 (file)
index 0000000..b40b2ce
--- /dev/null
+++ b/target/linux/generic-2.6/patches-2.6.32/979-crypto_add_kconfig_prompts.patch
@@ -0,0 +1,47 @@
+--- a/crypto/Kconfig
++++ b/crypto/Kconfig
+@@ -32,7 +32,7 @@ config CRYPTO_FIPS
+         option is selected
+ 
+ config CRYPTO_ALGAPI
+-      tristate
++      tristate "ALGAPI"
+       select CRYPTO_ALGAPI2
+       help
+         This option provides the API for cryptographic algorithms.
+@@ -41,7 +41,7 @@ config CRYPTO_ALGAPI2
+       tristate
+ 
+ config CRYPTO_AEAD
+-      tristate
++      tristate "AEAD"
+       select CRYPTO_AEAD2
+       select CRYPTO_ALGAPI
+ 
+@@ -50,7 +50,7 @@ config CRYPTO_AEAD2
+       select CRYPTO_ALGAPI2
+ 
+ config CRYPTO_BLKCIPHER
+-      tristate
++      tristate "BLKCIPHER"
+       select CRYPTO_BLKCIPHER2
+       select CRYPTO_ALGAPI
+ 
+@@ -61,7 +61,7 @@ config CRYPTO_BLKCIPHER2
+       select CRYPTO_WORKQUEUE
+ 
+ config CRYPTO_HASH
+-      tristate
++      tristate "HASH"
+       select CRYPTO_HASH2
+       select CRYPTO_ALGAPI
+ 
+@@ -70,7 +70,7 @@ config CRYPTO_HASH2
+       select CRYPTO_ALGAPI2
+ 
+ config CRYPTO_RNG
+-      tristate
++      tristate "RNG"
+       select CRYPTO_RNG2
+       select CRYPTO_ALGAPI
+ 

diff --git a/target/linux/generic-2.6/patches-2.6.32/980-vm_exports.patch b/target/linux/generic-2.6/patches-2.6.32/980-vm_exports.patch
new file mode 100644 (file)
index 0000000..4c3b561
--- /dev/null
+++ b/target/linux/generic-2.6/patches-2.6.32/980-vm_exports.patch
@@ -0,0 +1,134 @@
+--- a/mm/shmem.c
++++ b/mm/shmem.c
+@@ -2775,6 +2775,16 @@ int shmem_lock(struct file *file, int lo
+ 
+ /* common code */
+ 
++void shmem_set_file(struct vm_area_struct *vma, struct file *file)
++{
++      ima_counts_get(file);
++      if (vma->vm_file)
++              fput(vma->vm_file);
++      vma->vm_file = file;
++      vma->vm_ops = &shmem_vm_ops;
++}
++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/<pid>/maps
+@@ -2854,9 +2864,6 @@ 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;
++      shmem_set_file(vma, file);
+       return 0;
+ }
+--- a/fs/file.c
++++ b/fs/file.c
+@@ -271,6 +271,7 @@ 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
+@@ -510,6 +510,7 @@ struct files_struct *get_files_struct(st
+ 
+       return files;
+ }
++EXPORT_SYMBOL_GPL(get_files_struct);
+ 
+ void put_files_struct(struct files_struct *files)
+ {
+@@ -529,6 +530,7 @@ void put_files_struct(struct files_struc
+               free_fdtable(fdt);
+       }
+ }
++EXPORT_SYMBOL_GPL(put_files_struct);
+ 
+ void reset_files_struct(struct files_struct *files)
+ {
+--- a/kernel/fork.c
++++ b/kernel/fork.c
+@@ -168,6 +168,7 @@ void __put_task_struct(struct task_struc
+       if (!profile_handoff_task(tsk))
+               free_task(tsk);
+ }
++EXPORT_SYMBOL_GPL(__put_task_struct);
+ 
+ /*
+  * macro override instead of weak attribute alias, to workaround
+--- a/kernel/sched.c
++++ b/kernel/sched.c
+@@ -6046,6 +6046,7 @@ int can_nice(const struct task_struct *p
+       return (nice_rlim <= p->signal->rlim[RLIMIT_NICE].rlim_cur ||
+               capable(CAP_SYS_NICE));
+ }
++EXPORT_SYMBOL_GPL(can_nice);
+ 
+ #ifdef __ARCH_WANT_SYS_NICE
+ 
+--- a/mm/memory.c
++++ b/mm/memory.c
+@@ -1097,6 +1097,7 @@ 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
+@@ -2483,6 +2484,7 @@ 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
+@@ -1113,6 +1113,7 @@ 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)
+ {
+@@ -1228,6 +1229,7 @@ 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
+@@ -713,6 +713,7 @@ extern void show_free_areas(void);
+ 
+ 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
+--- a/kernel/signal.c
++++ b/kernel/signal.c
+@@ -1069,6 +1069,7 @@ struct sighand_struct *lock_task_sighand
+ 
+       return sighand;
+ }
++EXPORT_SYMBOL(lock_task_sighand);
+ 
+ /*
+  * send signal info to all the members of a group

diff --git a/target/linux/generic-2.6/patches-2.6.32/985-cris-headers.patch b/target/linux/generic-2.6/patches-2.6.32/985-cris-headers.patch
new file mode 100644 (file)
index 0000000..73ede93
--- /dev/null
+++ b/target/linux/generic-2.6/patches-2.6.32/985-cris-headers.patch
@@ -0,0 +1,27 @@
+--- a/arch/cris/include/arch-v10/arch/Kbuild
++++ b/arch/cris/include/arch-v10/arch/Kbuild
+@@ -1,3 +1,5 @@
++header-y += elf.h
++header-y += ptrace.h
+ header-y += user.h
+ header-y += svinto.h
+ header-y += sv_addr_ag.h
+--- a/arch/cris/include/asm/Kbuild
++++ b/arch/cris/include/asm/Kbuild
+@@ -1,11 +1,14 @@
+ include include/asm-generic/Kbuild.asm
+ 
+-header-y += arch-v10/
+-header-y += arch-v32/
++header-y += ../arch-v10/arch/
++header-y += ../arch-v32/arch/
+ 
++header-y += elf.h
+ header-y += ethernet.h
++header-y += page.h
+ header-y += rtc.h
+ header-y += sync_serial.h
++header-y += user.h
+ 
+ unifdef-y += etraxgpio.h
+ unifdef-y += rs485.h

diff --git a/target/linux/generic-2.6/patches-2.6.32/991-ppc4xx_optimization.patch b/target/linux/generic-2.6/patches-2.6.32/991-ppc4xx_optimization.patch
new file mode 100644 (file)
index 0000000..0efb777
--- /dev/null
+++ b/target/linux/generic-2.6/patches-2.6.32/991-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
+@@ -123,7 +123,8 @@ 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
+ DTS_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)/virtex405-head.o: BOOTAFLAGS += -mcpu=405

diff --git a/target/linux/generic-2.6/patches-2.6.32/998-openwrt_lzma_options.patch b/target/linux/generic-2.6/patches-2.6.32/998-openwrt_lzma_options.patch
new file mode 100644 (file)
index 0000000..f9108f2
--- /dev/null
+++ b/target/linux/generic-2.6/patches-2.6.32/998-openwrt_lzma_options.patch
@@ -0,0 +1,42 @@
+--- a/scripts/Makefile.lib
++++ b/scripts/Makefile.lib
+@@ -228,5 +228,5 @@ 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 -lc1 -lp2 -pb2 -eos -si -so && $(call size_append, $(filter-out FORCE,$^))) > $@ || \
+       (rm -f $@ ; false)
+--- a/scripts/gen_initramfs_list.sh
++++ b/scripts/gen_initramfs_list.sh
+@@ -225,7 +225,7 @@ cpio_list=
+ output="/dev/stdout"
+ output_file=""
+ is_cpio_compressed=
+-compr="gzip -9 -f"
++compr="gzip -9 -f -"
+ 
+ arg="$1"
+ case "$arg" in
+@@ -239,9 +239,9 @@ 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 -lc1 -lp2 -pb2 -eos -si -so"
+               echo "$output_file" | grep -q "\.cpio$" && compr="cat"
+               shift
+               ;;
+@@ -292,7 +292,7 @@ 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}

diff --git a/target/linux/generic-2.6/patches-2.6.32/999-use_preinit_as_init.patch b/target/linux/generic-2.6/patches-2.6.32/999-use_preinit_as_init.patch
new file mode 100644 (file)
index 0000000..8887afa
--- /dev/null
+++ b/target/linux/generic-2.6/patches-2.6.32/999-use_preinit_as_init.patch
@@ -0,0 +1,14 @@
+--- a/init/main.c
++++ b/init/main.c
+@@ -843,10 +843,7 @@ 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.");
+ }

diff --git a/target/linux/ixp4xx/config-2.6.32 b/target/linux/ixp4xx/config-2.6.32
new file mode 100644 (file)
index 0000000..79bb193
--- /dev/null
+++ b/target/linux/ixp4xx/config-2.6.32
@@ -0,0 +1,157 @@
+# CONFIG_AEABI is not set
+CONFIG_ALIGNMENT_TRAP=y
+# CONFIG_ARCH_ADI_COYOTE is not set
+CONFIG_ARCH_IXCDP1100=y
+CONFIG_ARCH_IXDP425=y
+CONFIG_ARCH_IXDP4XX=y
+CONFIG_ARCH_IXP4XX=y
+# CONFIG_ARCH_PRPMC1100 is not set
+CONFIG_ARCH_REQUIRE_GPIOLIB=y
+# CONFIG_ARCH_SELECT_MEMORY_MODEL is not set
+# CONFIG_ARCH_SPARSEMEM_DEFAULT is not set
+CONFIG_ARCH_SUPPORTS_BIG_ENDIAN=y
+# CONFIG_ARCH_SUPPORTS_MSI is not set
+CONFIG_ARCH_SUSPEND_POSSIBLE=y
+CONFIG_ARM=y
+# CONFIG_ARM_THUMB is not set
+# CONFIG_ARPD is not set
+CONFIG_BASE_SMALL=0
+CONFIG_BITREVERSE=y
+CONFIG_BOUNCE=y
+CONFIG_CMDLINE="root=/dev/mtdblock2 rootfstype=squashfs,jffs2 noinitrd console=ttyS0,115200"
+CONFIG_CPU_32=y
+CONFIG_CPU_32v5=y
+CONFIG_CPU_ABRT_EV5T=y
+CONFIG_CPU_BIG_ENDIAN=y
+CONFIG_CPU_CACHE_VIVT=y
+CONFIG_CPU_CP15=y
+CONFIG_CPU_CP15_MMU=y
+CONFIG_CPU_ENDIAN_BE32=y
+# CONFIG_CPU_ENDIAN_BE8 is not set
+CONFIG_CPU_IXP43X=y
+CONFIG_CPU_IXP46X=y
+CONFIG_CPU_PABRT_NOIFAR=y
+CONFIG_CPU_TLB_V4WBI=y
+CONFIG_CPU_XSCALE=y
+CONFIG_CRC16=y
+# CONFIG_DEBUG_BUGVERBOSE is not set
+# CONFIG_DEBUG_USER is not set
+CONFIG_DECOMPRESS_LZMA=y
+CONFIG_DEVPORT=y
+# CONFIG_DM9000 is not set
+CONFIG_DMABOUNCE=y
+CONFIG_DNOTIFY=y
+CONFIG_EEPROM_AT24=y
+# CONFIG_FPE_FASTFPE is not set
+# CONFIG_FPE_NWFPE is not set
+CONFIG_FRAME_POINTER=y
+CONFIG_GENERIC_CLOCKEVENTS=y
+CONFIG_GENERIC_CLOCKEVENTS_BUILD=y
+CONFIG_GENERIC_FIND_LAST_BIT=y
+CONFIG_GENERIC_GPIO=y
+CONFIG_GENERIC_HARDIRQS_NO__DO_IRQ=y
+CONFIG_GPIOLIB=y
+CONFIG_GPIO_DEVICE=y
+CONFIG_GPIO_GW_I2C_PLD=y
+CONFIG_GPIO_SYSFS=y
+# CONFIG_HAMRADIO is not set
+CONFIG_HARDIRQS_SW_RESEND=y
+CONFIG_HAS_DMA=y
+CONFIG_HAS_IOMEM=y
+CONFIG_HAS_IOPORT=y
+CONFIG_HAVE_AOUT=y
+CONFIG_HAVE_ARCH_KGDB=y
+CONFIG_HAVE_FUNCTION_TRACER=y
+CONFIG_HAVE_GENERIC_DMA_COHERENT=y
+CONFIG_HAVE_IDE=y
+CONFIG_HAVE_KPROBES=y
+CONFIG_HAVE_KRETPROBES=y
+CONFIG_HAVE_LATENCYTOP_SUPPORT=y
+CONFIG_HAVE_MTD_OTP=y
+CONFIG_HAVE_OPROFILE=y
+CONFIG_HWMON=y
+# CONFIG_HWMON_DEBUG_CHIP is not set
+CONFIG_HWMON_VID=y
+CONFIG_HW_RANDOM=y
+CONFIG_HW_RANDOM_IXP4XX=y
+CONFIG_I2C=y
+CONFIG_I2C_ALGOBIT=y
+CONFIG_I2C_BOARDINFO=y
+CONFIG_I2C_CHARDEV=y
+CONFIG_I2C_GPIO=y
+# CONFIG_I2C_IOP3XX is not set
+CONFIG_INITRAMFS_SOURCE=""
+CONFIG_IP_PIMSM_V1=y
+CONFIG_IP_PIMSM_V2=y
+# CONFIG_ISDN is not set
+# CONFIG_IWMMXT is not set
+CONFIG_IXP4XX_ETH=y
+# CONFIG_IXP4XX_INDIRECT_PCI is not set
+CONFIG_IXP4XX_LEGACY_DMABOUNCE=y
+CONFIG_IXP4XX_NPE=y
+CONFIG_IXP4XX_QMGR=y
+CONFIG_IXP4XX_WATCHDOG=y
+CONFIG_LEDS_FSG=y
+CONFIG_LEDS_GPIO=y
+CONFIG_LEDS_LATCH=y
+CONFIG_LEGACY_PTYS=y
+CONFIG_LEGACY_PTY_COUNT=256
+CONFIG_MACH_AP1000=y
+CONFIG_MACH_AVILA=y
+CONFIG_MACH_CAMBRIA=y
+CONFIG_MACH_COMPEX=y
+CONFIG_MACH_DSMG600=y
+CONFIG_MACH_FSG=y
+CONFIG_MACH_GATEWAY7001=y
+# CONFIG_MACH_GORAMO_MLR is not set
+# CONFIG_MACH_GTWX5715 is not set
+# CONFIG_MACH_IXDP465 is not set
+CONFIG_MACH_IXDPG425=y
+# CONFIG_MACH_KIXRP435 is not set
+CONFIG_MACH_LOFT=y
+CONFIG_MACH_MI424WR=y
+CONFIG_MACH_NAS100D=y
+CONFIG_MACH_NSLU2=y
+CONFIG_MACH_PRONGHORN=y
+CONFIG_MACH_PRONGHORNMETRO=y
+CONFIG_MACH_SIDEWINDER=y
+CONFIG_MACH_TW5334=y
+CONFIG_MACH_USR8200=y
+CONFIG_MACH_WG302V1=y
+CONFIG_MACH_WG302V2=y
+CONFIG_MACH_WRT300NV2=y
+CONFIG_MTD_CFI_ADV_OPTIONS=y
+# CONFIG_MTD_CFI_GEOMETRY is not set
+CONFIG_MTD_IXP4XX=y
+CONFIG_MTD_OTP=y
+CONFIG_MTD_REDBOOT_PARTS=y
+# CONFIG_NATSEMI is not set
+# CONFIG_NVRAM is not set
+CONFIG_PAGEFLAGS_EXTENDED=y
+CONFIG_PAGE_OFFSET=0xC0000000
+CONFIG_PCI=y
+CONFIG_PCI_SYSCALL=y
+CONFIG_PHYLIB=y
+CONFIG_RTC_CLASS=y
+CONFIG_RTC_DRV_DS1672=y
+CONFIG_RTC_DRV_ISL1208=y
+CONFIG_RTC_DRV_PCF8563=y
+CONFIG_RTC_DRV_X1205=y
+# CONFIG_SCSI_DMA is not set
+CONFIG_SENSORS_AD7418=y
+CONFIG_SENSORS_MAX6650=y
+CONFIG_SENSORS_W83781D=y
+# CONFIG_SERIAL_8250_EXTENDED is not set
+CONFIG_SERIAL_8250_NR_UARTS=4
+CONFIG_SERIAL_8250_RUNTIME_UARTS=4
+CONFIG_SPLIT_PTLOCK_CPUS=4096
+CONFIG_SYS_SUPPORTS_APM_EMULATION=y
+CONFIG_TICK_ONESHOT=y
+CONFIG_UID16=y
+CONFIG_USB_SUPPORT=y
+CONFIG_VECTORS_BASE=0xffff0000
+CONFIG_VM_EVENT_COUNTERS=y
+CONFIG_WATCHDOG_NOWAYOUT=y
+CONFIG_XSCALE_PMU=y
+CONFIG_ZBOOT_ROM_BSS=0x0
+CONFIG_ZBOOT_ROM_TEXT=0x0

diff --git a/target/linux/ixp4xx/patches-2.6.32/010-ixp43x_pci_fixup.patch b/target/linux/ixp4xx/patches-2.6.32/010-ixp43x_pci_fixup.patch
new file mode 100644 (file)
index 0000000..35af7f4
--- /dev/null
+++ b/target/linux/ixp4xx/patches-2.6.32/010-ixp43x_pci_fixup.patch
@@ -0,0 +1,11 @@
+--- a/arch/arm/mach-ixp4xx/include/mach/hardware.h
++++ b/arch/arm/mach-ixp4xx/include/mach/hardware.h
+@@ -18,7 +18,7 @@
+ #define __ASM_ARCH_HARDWARE_H__
+ 
+ #define PCIBIOS_MIN_IO                0x00001000
+-#define PCIBIOS_MIN_MEM               (cpu_is_ixp43x() ? 0x40000000 : 0x48000000)
++#define PCIBIOS_MIN_MEM               0x48000000
+ 
+ /*
+  * We override the standard dma-mask routines for bouncing.

diff --git a/target/linux/ixp4xx/patches-2.6.32/020-gateworks_i2c_pld.patch b/target/linux/ixp4xx/patches-2.6.32/020-gateworks_i2c_pld.patch
new file mode 100644 (file)
index 0000000..a09a3be
--- /dev/null
+++ b/target/linux/ixp4xx/patches-2.6.32/020-gateworks_i2c_pld.patch
@@ -0,0 +1,421 @@
+--- /dev/null
++++ b/drivers/gpio/gw_i2c_pld.c
+@@ -0,0 +1,371 @@
++/*
++ * Gateworks I2C PLD GPIO expander
++ *
++ * Copyright (C) 2009 Gateworks Corporation
++ *
++ * 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.
++ *
++ * This program is distributed in the hope that 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., 675 Mass Ave, Cambridge, MA 02139, USA.
++ */
++
++#include <linux/kernel.h>
++#include <linux/slab.h>
++#include <linux/hardirq.h>
++#include <linux/i2c.h>
++#include <linux/i2c/gw_i2c_pld.h>
++#include <asm/gpio.h>
++
++static const struct i2c_device_id gw_i2c_pld_id[] = {
++      { "gw_i2c_pld", 8 },
++      { }
++};
++MODULE_DEVICE_TABLE(i2c, gw_i2c_pld_id);
++
++/*
++ * The Gateworks I2C PLD chip only expose one read and one
++ * write register.  Writing a "one" bit (to match the reset state) lets
++ * that pin be used as an input. It is an open-drain model.
++ */
++
++struct gw_i2c_pld {
++      struct gpio_chip        chip;
++      struct i2c_client       *client;
++      unsigned                out;            /* software latch */
++};
++
++/*-------------------------------------------------------------------------*/
++
++/*
++ * The Gateworks I2C PLD chip does not properly send the acknowledge bit
++ * thus we cannot use standard i2c_smbus functions. We have recreated
++ * our own here, but we still use the mutex_lock to lock the i2c_bus
++ * as the device still exists on the I2C bus.
++*/
++
++#define PLD_SCL_GPIO 6
++#define PLD_SDA_GPIO 7
++
++#define SCL_LO()  gpio_line_set(PLD_SCL_GPIO, IXP4XX_GPIO_LOW)
++#define SCL_HI()  gpio_line_set(PLD_SCL_GPIO, IXP4XX_GPIO_HIGH)
++#define SCL_EN()  gpio_line_config(PLD_SCL_GPIO, IXP4XX_GPIO_OUT)
++#define SDA_LO()  gpio_line_set(PLD_SDA_GPIO, IXP4XX_GPIO_LOW)
++#define SDA_HI()  gpio_line_set(PLD_SDA_GPIO, IXP4XX_GPIO_HIGH)
++#define SDA_EN()  gpio_line_config(PLD_SDA_GPIO, IXP4XX_GPIO_OUT)
++#define SDA_DIS() gpio_line_config(PLD_SDA_GPIO, IXP4XX_GPIO_IN)
++#define SDA_IN(x) gpio_line_get(PLD_SDA_GPIO, &x);
++
++static int i2c_pld_write_byte(int address, int byte)
++{
++      int i;
++
++      address = (address << 1) & ~0x1;
++
++      SDA_HI();
++      SDA_EN();
++      SCL_EN();
++      SCL_HI();
++      SDA_LO();
++      SCL_LO();
++
++      for (i = 7; i >= 0; i--)
++      {
++              if (address & (1 << i))
++                      SDA_HI();
++              else
++                      SDA_LO();
++
++              SCL_HI();
++              SCL_LO();
++      }
++
++      SDA_DIS();
++      SCL_HI();
++      SDA_IN(i);
++      SCL_LO();
++      SDA_EN();
++
++      for (i = 7; i >= 0; i--)
++      {
++              if (byte & (1 << i))
++      SDA_HI();
++              else
++                      SDA_LO();
++              SCL_HI();
++              SCL_LO();
++      }
++
++      SDA_DIS();
++      SCL_HI();
++      SDA_IN(i);
++      SCL_LO();
++
++      SDA_HI();
++      SDA_EN();
++
++      SDA_LO();
++      SCL_HI();
++      SDA_HI();
++      SCL_LO();
++      SCL_HI();
++
++      return 0;
++}
++
++static unsigned int i2c_pld_read_byte(int address)
++{
++      int i = 0, byte = 0;
++      int bit;
++
++      address = (address << 1) | 0x1;
++
++      SDA_HI();
++      SDA_EN();
++      SCL_EN();
++      SCL_HI();
++      SDA_LO();
++      SCL_LO();
++
++      for (i = 7; i >= 0; i--)
++      {
++              if (address & (1 << i))
++                      SDA_HI();
++              else
++                      SDA_LO();
++
++              SCL_HI();
++              SCL_LO();
++      }
++
++      SDA_DIS();
++      SCL_HI();
++      SDA_IN(i);
++      SCL_LO();
++      SDA_EN();
++
++      SDA_DIS();
++      for (i = 7; i >= 0; i--)
++      {
++              SCL_HI();
++              SDA_IN(bit);
++              byte |= bit << i;
++              SCL_LO();
++      }
++
++      SDA_LO();
++      SCL_HI();
++      SDA_HI();
++      SCL_LO();
++      SCL_HI();
++
++      return byte;
++}
++
++
++static int gw_i2c_pld_input8(struct gpio_chip *chip, unsigned offset)
++{
++      int ret;
++      struct gw_i2c_pld *gpio = container_of(chip, struct gw_i2c_pld, chip);
++      struct i2c_adapter *adap = gpio->client->adapter;
++      
++      if (in_atomic() || irqs_disabled()) {
++              ret = mutex_trylock(&adap->bus_lock);
++              if (!ret)
++                      /* I2C activity is ongoing. */
++                      return -EAGAIN;
++      } else {
++              mutex_lock_nested(&adap->bus_lock, adap->level);
++      }
++
++      gpio->out |= (1 << offset);
++
++      ret = i2c_pld_write_byte(gpio->client->addr, gpio->out);
++
++      mutex_unlock(&adap->bus_lock);
++
++      return ret;
++}
++
++static int gw_i2c_pld_get8(struct gpio_chip *chip, unsigned offset)
++{
++      int ret;
++      s32     value;
++      struct gw_i2c_pld *gpio = container_of(chip, struct gw_i2c_pld, chip);
++      struct i2c_adapter *adap = gpio->client->adapter;
++      
++      if (in_atomic() || irqs_disabled()) {
++              ret = mutex_trylock(&adap->bus_lock);
++              if (!ret)
++                      /* I2C activity is ongoing. */
++                      return -EAGAIN;
++      } else {
++              mutex_lock_nested(&adap->bus_lock, adap->level);
++      }
++
++      value = i2c_pld_read_byte(gpio->client->addr);
++
++      mutex_unlock(&adap->bus_lock);
++
++      return (value < 0) ? 0 : (value & (1 << offset));
++}
++
++static int gw_i2c_pld_output8(struct gpio_chip *chip, unsigned offset, int value)
++{
++      int ret;
++
++      struct gw_i2c_pld *gpio = container_of(chip, struct gw_i2c_pld, chip);
++      struct i2c_adapter *adap = gpio->client->adapter;
++
++      unsigned bit = 1 << offset;
++      
++      if (in_atomic() || irqs_disabled()) {
++              ret = mutex_trylock(&adap->bus_lock);
++              if (!ret)
++                      /* I2C activity is ongoing. */
++                      return -EAGAIN;
++      } else {
++              mutex_lock_nested(&adap->bus_lock, adap->level);
++      }
++
++
++      if (value)
++              gpio->out |= bit;
++      else
++              gpio->out &= ~bit;
++
++      ret = i2c_pld_write_byte(gpio->client->addr, gpio->out);
++
++      mutex_unlock(&adap->bus_lock);
++
++      return ret;
++}
++
++static void gw_i2c_pld_set8(struct gpio_chip *chip, unsigned offset, int value)
++{
++      gw_i2c_pld_output8(chip, offset, value);
++}
++
++/*-------------------------------------------------------------------------*/
++
++static int gw_i2c_pld_probe(struct i2c_client *client,
++                       const struct i2c_device_id *id)
++{
++      struct gw_i2c_pld_platform_data *pdata;
++      struct gw_i2c_pld *gpio;
++      int status;
++
++      pdata = client->dev.platform_data;
++      if (!pdata)
++              return -ENODEV;
++
++      /* Allocate, initialize, and register this gpio_chip. */
++      gpio = kzalloc(sizeof *gpio, GFP_KERNEL);
++      if (!gpio)
++              return -ENOMEM;
++
++      gpio->chip.base = pdata->gpio_base;
++      gpio->chip.can_sleep = 1;
++      gpio->chip.dev = &client->dev;
++      gpio->chip.owner = THIS_MODULE;
++
++      gpio->chip.ngpio = pdata->nr_gpio;
++      gpio->chip.direction_input = gw_i2c_pld_input8;
++      gpio->chip.get = gw_i2c_pld_get8;
++      gpio->chip.direction_output = gw_i2c_pld_output8;
++      gpio->chip.set = gw_i2c_pld_set8;
++
++      gpio->chip.label = client->name;
++
++      gpio->client = client;
++      i2c_set_clientdata(client, gpio);
++
++      gpio->out = 0xFF;
++
++      status = gpiochip_add(&gpio->chip);
++      if (status < 0)
++              goto fail;
++
++      dev_info(&client->dev, "gpios %d..%d on a %s%s\n",
++                      gpio->chip.base,
++                      gpio->chip.base + gpio->chip.ngpio - 1,
++                      client->name,
++                      client->irq ? " (irq ignored)" : "");
++
++      /* Let platform code set up the GPIOs and their users.
++       * Now is the first time anyone could use them.
++       */
++      if (pdata->setup) {
++              status = pdata->setup(client,
++                              gpio->chip.base, gpio->chip.ngpio,
++                              pdata->context);
++              if (status < 0)
++                      dev_warn(&client->dev, "setup --> %d\n", status);
++      }
++
++      return 0;
++
++fail:
++      dev_dbg(&client->dev, "probe error %d for '%s'\n",
++                      status, client->name);
++      kfree(gpio);
++      return status;
++}
++
++static int gw_i2c_pld_remove(struct i2c_client *client)
++{
++      struct gw_i2c_pld_platform_data *pdata = client->dev.platform_data;
++      struct gw_i2c_pld *gpio = i2c_get_clientdata(client);
++      int                             status = 0;
++
++      if (pdata->teardown) {
++              status = pdata->teardown(client,
++                              gpio->chip.base, gpio->chip.ngpio,
++                              pdata->context);
++              if (status < 0) {
++                      dev_err(&client->dev, "%s --> %d\n",
++                                      "teardown", status);
++                      return status;
++              }
++      }
++
++      status = gpiochip_remove(&gpio->chip);
++      if (status == 0)
++              kfree(gpio);
++      else
++              dev_err(&client->dev, "%s --> %d\n", "remove", status);
++      return status;
++}
++
++static struct i2c_driver gw_i2c_pld_driver = {
++      .driver = {
++              .name   = "gw_i2c_pld",
++              .owner  = THIS_MODULE,
++      },
++      .probe  = gw_i2c_pld_probe,
++      .remove = gw_i2c_pld_remove,
++      .id_table = gw_i2c_pld_id,
++};
++
++static int __init gw_i2c_pld_init(void)
++{
++      return i2c_add_driver(&gw_i2c_pld_driver);
++}
++module_init(gw_i2c_pld_init);
++
++static void __exit gw_i2c_pld_exit(void)
++{
++      i2c_del_driver(&gw_i2c_pld_driver);
++}
++module_exit(gw_i2c_pld_exit);
++
++MODULE_LICENSE("GPL");
++MODULE_AUTHOR("Chris Lang");
+--- a/drivers/gpio/Kconfig
++++ b/drivers/gpio/Kconfig
+@@ -196,6 +196,14 @@ config GPIO_LANGWELL
+       help
+         Say Y here to support Intel Moorestown platform GPIO.
+ 
++config GPIO_GW_I2C_PLD
++      tristate "Gateworks I2C PLD GPIO Expander"
++      depends on I2C
++      help
++              Say yes here to provide access to the Gateworks I2C PLD GPIO
++              Expander. This is used at least on the GW2358-4.
++
++
+ comment "SPI GPIO expanders:"
+ 
+ config GPIO_MAX7301
+--- a/drivers/gpio/Makefile
++++ b/drivers/gpio/Makefile
+@@ -19,3 +19,4 @@ obj-$(CONFIG_GPIO_XILINX)    += xilinx_gpio
+ obj-$(CONFIG_GPIO_BT8XX)      += bt8xxgpio.o
+ obj-$(CONFIG_GPIO_VR41XX)     += vr41xx_giu.o
+ obj-$(CONFIG_GPIO_WM831X)     += wm831x-gpio.o
++obj-$(CONFIG_GPIO_GW_I2C_PLD) += gw_i2c_pld.o
+--- /dev/null
++++ b/include/linux/i2c/gw_i2c_pld.h
+@@ -0,0 +1,20 @@
++#ifndef __LINUX_GW_I2C_PLD_H
++#define __LINUX_GW_I2C_PLD_H
++
++/**
++ * The Gateworks I2C PLD Implements an additional 8 bits of GPIO through the PLD
++ */
++
++struct gw_i2c_pld_platform_data {
++      unsigned gpio_base;
++      unsigned nr_gpio;
++      int             (*setup)(struct i2c_client *client,
++                                      int gpio, unsigned ngpio,
++                                      void *context);
++      int             (*teardown)(struct i2c_client *client,
++                                      int gpio, unsigned ngpio,
++                                      void *context);
++      void            *context;
++};
++
++#endif /* __LINUX_GW_I2C_PLD_H */

diff --git a/target/linux/ixp4xx/patches-2.6.32/050-disable_dmabounce.patch b/target/linux/ixp4xx/patches-2.6.32/050-disable_dmabounce.patch
new file mode 100644 (file)
index 0000000..9e1c023
--- /dev/null
+++ b/target/linux/ixp4xx/patches-2.6.32/050-disable_dmabounce.patch
@@ -0,0 +1,164 @@
+--- a/arch/arm/Kconfig
++++ b/arch/arm/Kconfig
+@@ -415,7 +415,6 @@ config ARCH_IXP4XX
+       select GENERIC_GPIO
+       select GENERIC_TIME
+       select GENERIC_CLOCKEVENTS
+-      select DMABOUNCE if PCI
+       help
+         Support for Intel's IXP4XX (XScale) family of processors.
+ 
+--- a/arch/arm/mach-ixp4xx/Kconfig
++++ b/arch/arm/mach-ixp4xx/Kconfig
+@@ -199,6 +199,45 @@ config IXP4XX_INDIRECT_PCI
+         need to use the indirect method instead. If you don't know
+         what you need, leave this option unselected.
+ 
++config IXP4XX_LEGACY_DMABOUNCE
++      bool "legacy PCI DMA bounce support"
++      depends on PCI
++      default n
++      select DMABOUNCE
++      help
++        The IXP4xx is limited to a 64MB window for PCI DMA, which
++        requires that PCI accesses above 64MB are bounced via buffers
++        below 64MB. Furthermore the IXP4xx has an erratum where PCI
++        read prefetches just below the 64MB limit can trigger lockups.
++
++        The kernel has traditionally handled these two issue by using
++        ARM specific DMA bounce support code for all accesses >= 64MB.
++        That code causes problems of its own, so it is desirable to
++        disable it. As the kernel now has a workaround for the PCI read
++        prefetch erratum, it no longer requires the ARM bounce code.
++
++        Enabling this option makes IXP4xx continue to use the problematic
++        ARM DMA bounce code. Disabling this option makes IXP4xx use the
++        kernel's generic bounce code.
++
++        Say 'N'.
++
++config IXP4XX_ZONE_DMA
++      bool "Support > 64MB RAM"
++      depends on !IXP4XX_LEGACY_DMABOUNCE
++      default y
++      select ZONE_DMA
++      help
++        The IXP4xx is limited to a 64MB window for PCI DMA, which
++        requires that PCI accesses above 64MB are bounced via buffers
++        below 64MB.
++
++        Disabling this option allows you to omit the support code for
++        DMA-able memory allocations and DMA bouncing, but the kernel
++        will then not work properly if more than 64MB of RAM is present.
++
++        Say 'Y' unless your platform is limited to <= 64MB of RAM.
++
+ config IXP4XX_QMGR
+       tristate "IXP4xx Queue Manager support"
+       help
+--- a/arch/arm/mach-ixp4xx/common-pci.c
++++ b/arch/arm/mach-ixp4xx/common-pci.c
+@@ -321,27 +321,38 @@ static int abort_handler(unsigned long a
+  */
+ static int ixp4xx_pci_platform_notify(struct device *dev)
+ {
+-      if(dev->bus == &pci_bus_type) {
+-              *dev->dma_mask =  SZ_64M - 1;
++      if (dev->bus == &pci_bus_type) {
++              *dev->dma_mask = SZ_64M - 1;
+               dev->coherent_dma_mask = SZ_64M - 1;
++#ifdef CONFIG_DMABOUNCE
+               dmabounce_register_dev(dev, 2048, 4096);
++#endif
+       }
+       return 0;
+ }
+ 
+ static int ixp4xx_pci_platform_notify_remove(struct device *dev)
+ {
+-      if(dev->bus == &pci_bus_type) {
++#ifdef CONFIG_DMABOUNCE
++      if (dev->bus == &pci_bus_type)
+               dmabounce_unregister_dev(dev);
+-      }
++#endif
+       return 0;
+ }
+ 
++#ifdef CONFIG_DMABOUNCE
+ int dma_needs_bounce(struct device *dev, dma_addr_t dma_addr, size_t size)
+ {
++      /* Note that this returns true for the last page below 64M due to
++       * IXP4xx erratum 15 (SCR 1289), which states that PCI prefetches
++       * can cross the boundary between valid memory and a reserved region
++       * causing AHB bus errors and a lock-up.
++       */
+       return (dev->bus == &pci_bus_type ) && ((dma_addr + size) >= SZ_64M);
+ }
++#endif
+ 
++#ifdef CONFIG_ZONE_DMA
+ /*
+  * Only first 64MB of memory can be accessed via PCI.
+  * We use GFP_DMA to allocate safe buffers to do map/unmap.
+@@ -364,6 +375,7 @@ void __init ixp4xx_adjust_zones(int node
+       zhole_size[1] = zhole_size[0];
+       zhole_size[0] = 0;
+ }
++#endif
+ 
+ void __init ixp4xx_pci_preinit(void)
+ {
+@@ -517,19 +529,35 @@ struct pci_bus * __devinit ixp4xx_scan_b
+ int
+ pci_set_dma_mask(struct pci_dev *dev, u64 mask)
+ {
+-      if (mask >= SZ_64M - 1 )
++#ifdef CONFIG_DMABOUNCE
++      if (mask >= SZ_64M - 1)
+               return 0;
+ 
+       return -EIO;
++#else
++      /* Only honour masks < SZ_64M. Silently ignore masks >= SZ_64M
++         as generic drivers do not know about IXP4xx PCI DMA quirks. */
++      if (mask < SZ_64M)
++              dev->dma_mask = mask;
++      return 0;
++#endif
+ }
+     
+ int
+ pci_set_consistent_dma_mask(struct pci_dev *dev, u64 mask)
+ {
+-      if (mask >= SZ_64M - 1 )
++#ifdef CONFIG_DMABOUNCE
++      if (mask >= SZ_64M - 1)
+               return 0;
+ 
+       return -EIO;
++#else
++      /* Only honour masks < SZ_64M. Silently ignore masks >= SZ_64M
++         as generic drivers do not know about IXP4xx PCI DMA quirks. */
++      if (mask < SZ_64M)
++              dev->dev.coherent_dma_mask = mask;
++      return 0;
++#endif
+ }
+ 
+ EXPORT_SYMBOL(ixp4xx_pci_read);
+--- a/arch/arm/mach-ixp4xx/include/mach/memory.h
++++ b/arch/arm/mach-ixp4xx/include/mach/memory.h
+@@ -16,10 +16,12 @@
+ 
+ #if !defined(__ASSEMBLY__) && defined(CONFIG_PCI)
+ 
++#ifdef CONFIG_ZONE_DMA
+ void ixp4xx_adjust_zones(int node, unsigned long *size, unsigned long *holes);
+ 
+ #define arch_adjust_zones(node, size, holes) \
+       ixp4xx_adjust_zones(node, size, holes)
++#endif
+ 
+ #define ISA_DMA_THRESHOLD (SZ_64M - 1)
+ #define MAX_DMA_ADDRESS               (PAGE_OFFSET + SZ_64M)

diff --git a/target/linux/ixp4xx/patches-2.6.32/090-increase_entropy_pools.patch b/target/linux/ixp4xx/patches-2.6.32/090-increase_entropy_pools.patch
new file mode 100644 (file)
index 0000000..f67b9b0
--- /dev/null
+++ b/target/linux/ixp4xx/patches-2.6.32/090-increase_entropy_pools.patch
@@ -0,0 +1,15 @@
+--- a/drivers/char/random.c
++++ b/drivers/char/random.c
+@@ -264,9 +264,9 @@
+ /*
+  * Configuration information
+  */
+-#define INPUT_POOL_WORDS 128
+-#define OUTPUT_POOL_WORDS 32
+-#define SEC_XFER_SIZE 512
++#define INPUT_POOL_WORDS 256
++#define OUTPUT_POOL_WORDS 64
++#define SEC_XFER_SIZE 1024
+ 
+ /*
+  * The minimum number of bits of entropy before we wake up a read on

diff --git a/target/linux/ixp4xx/patches-2.6.32/100-wg302v2_gateway7001_mac_plat_info.patch b/target/linux/ixp4xx/patches-2.6.32/100-wg302v2_gateway7001_mac_plat_info.patch
new file mode 100644 (file)
index 0000000..a19a408
--- /dev/null
+++ b/target/linux/ixp4xx/patches-2.6.32/100-wg302v2_gateway7001_mac_plat_info.patch
@@ -0,0 +1,68 @@
+--- a/arch/arm/mach-ixp4xx/gateway7001-setup.c
++++ b/arch/arm/mach-ixp4xx/gateway7001-setup.c
+@@ -76,9 +76,35 @@ static struct platform_device gateway700
+       .resource       = &gateway7001_uart_resource,
+ };
+ 
++static struct eth_plat_info gateway7001_plat_eth[] = {
++      {
++              .phy            = 1,
++              .rxq            = 3,
++              .txreadyq       = 20,
++      }, {
++              .phy            = 2,
++              .rxq            = 4,
++              .txreadyq       = 21,
++      }
++};
++
++static struct platform_device gateway7001_eth[] = {
++      {
++              .name                   = "ixp4xx_eth",
++              .id                     = IXP4XX_ETH_NPEB,
++              .dev.platform_data      = gateway7001_plat_eth,
++      }, {
++              .name                   = "ixp4xx_eth",
++              .id                     = IXP4XX_ETH_NPEC,
++              .dev.platform_data      = gateway7001_plat_eth + 1,
++      }
++};
++
+ static struct platform_device *gateway7001_devices[] __initdata = {
+       &gateway7001_flash,
+-      &gateway7001_uart
++      &gateway7001_uart,
++      &gateway7001_eth[0],
++      &gateway7001_eth[1],
+ };
+ 
+ static void __init gateway7001_init(void)
+--- a/arch/arm/mach-ixp4xx/wg302v2-setup.c
++++ b/arch/arm/mach-ixp4xx/wg302v2-setup.c
+@@ -77,9 +77,26 @@ static struct platform_device wg302v2_ua
+       .resource       = &wg302v2_uart_resource,
+ };
+ 
++static struct eth_plat_info wg302v2_plat_eth[] = {
++      {
++              .phy            = 8,
++              .rxq            = 3,
++              .txreadyq       = 20,
++      }
++};
++
++static struct platform_device wg302v2_eth[] = {
++      {
++              .name                   = "ixp4xx_eth",
++              .id                     = IXP4XX_ETH_NPEB,
++              .dev.platform_data      = wg302v2_plat_eth,
++      }
++};
++
+ static struct platform_device *wg302v2_devices[] __initdata = {
+       &wg302v2_flash,
+       &wg302v2_uart,
++      &wg302v2_eth[0],
+ };
+ 
+ static void __init wg302v2_init(void)

diff --git a/target/linux/ixp4xx/patches-2.6.32/105-wg302v1_support.patch b/target/linux/ixp4xx/patches-2.6.32/105-wg302v1_support.patch
new file mode 100644 (file)
index 0000000..e8b4342
--- /dev/null
+++ b/target/linux/ixp4xx/patches-2.6.32/105-wg302v1_support.patch
@@ -0,0 +1,257 @@
+--- a/arch/arm/configs/ixp4xx_defconfig
++++ b/arch/arm/configs/ixp4xx_defconfig
+@@ -155,6 +155,7 @@ CONFIG_MACH_AVILA=y
+ CONFIG_MACH_LOFT=y
+ CONFIG_ARCH_ADI_COYOTE=y
+ CONFIG_MACH_GATEWAY7001=y
++CONFIG_MACH_WG302V1=y
+ CONFIG_MACH_WG302V2=y
+ CONFIG_ARCH_IXDP425=y
+ CONFIG_MACH_IXDPG425=y
+--- a/arch/arm/mach-ixp4xx/Kconfig
++++ b/arch/arm/mach-ixp4xx/Kconfig
+@@ -49,6 +49,14 @@ config MACH_GATEWAY7001
+         7001 Access Point. For more information on this platform,
+         see http://openwrt.org
+ 
++config MACH_WG302V1
++      bool "Netgear WG302 v1 / WAG302 v1"
++      select PCI
++      help
++        Say 'Y' here if you want your kernel to support Netgear's
++        WG302 v1 or WAG302 v1 Access Points. For more information
++        on this platform, see http://openwrt.org
++
+ config MACH_WG302V2
+       bool "Netgear WG302 v2 / WAG302 v2"
+       select PCI
+--- a/arch/arm/mach-ixp4xx/Makefile
++++ b/arch/arm/mach-ixp4xx/Makefile
+@@ -14,6 +14,7 @@ obj-pci-$(CONFIG_MACH_NSLU2)         += nslu2-p
+ obj-pci-$(CONFIG_MACH_NAS100D)                += nas100d-pci.o
+ obj-pci-$(CONFIG_MACH_DSMG600)                += dsmg600-pci.o
+ obj-pci-$(CONFIG_MACH_GATEWAY7001)    += gateway7001-pci.o
++obj-pci-$(CONFIG_MACH_WG302V1)                += wg302v1-pci.o
+ obj-pci-$(CONFIG_MACH_WG302V2)                += wg302v2-pci.o
+ obj-pci-$(CONFIG_MACH_FSG)            += fsg-pci.o
+ 
+@@ -28,6 +29,7 @@ obj-$(CONFIG_MACH_NSLU2)     += nslu2-setup.
+ obj-$(CONFIG_MACH_NAS100D)    += nas100d-setup.o
+ obj-$(CONFIG_MACH_DSMG600)      += dsmg600-setup.o
+ obj-$(CONFIG_MACH_GATEWAY7001)        += gateway7001-setup.o
++obj-$(CONFIG_MACH_WG302V1)    += wg302v1-setup.o
+ obj-$(CONFIG_MACH_WG302V2)    += wg302v2-setup.o
+ obj-$(CONFIG_MACH_FSG)                += fsg-setup.o
+ obj-$(CONFIG_MACH_GORAMO_MLR) += goramo_mlr.o
+--- /dev/null
++++ b/arch/arm/mach-ixp4xx/wg302v1-pci.c
+@@ -0,0 +1,64 @@
++/*
++ * arch/arch/mach-ixp4xx/wg302v1-pci.c
++ *
++ * PCI setup routines for the Netgear WG302 v1 and WAG302 v1
++ *
++ * Copyright (C) 2008 Imre Kaloz <kaloz@openwrt.org>
++ *
++ * based on coyote-pci.c:
++ *    Copyright (C) 2002 Jungo Software Technologies.
++ *    Copyright (C) 2003 MontaVista Software, Inc.
++ *
++ * Maintainer: Imre Kaloz <kaloz@openwrt.org>
++ *
++ * 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 <linux/kernel.h>
++#include <linux/pci.h>
++#include <linux/init.h>
++#include <linux/irq.h>
++
++#include <asm/mach-types.h>
++#include <mach/hardware.h>
++
++#include <asm/mach/pci.h>
++
++void __init wg302v1_pci_preinit(void)
++{
++      set_irq_type(IRQ_IXP4XX_GPIO8, IRQ_TYPE_LEVEL_LOW);
++      set_irq_type(IRQ_IXP4XX_GPIO10, IRQ_TYPE_LEVEL_LOW);
++
++      ixp4xx_pci_preinit();
++}
++
++static int __init wg302v1_map_irq(struct pci_dev *dev, u8 slot, u8 pin)
++{
++      if (slot == 1)
++              return IRQ_IXP4XX_GPIO8;
++      else if (slot == 2)
++              return IRQ_IXP4XX_GPIO10;
++      else
++              return -1;
++}
++
++struct hw_pci wg302v1_pci __initdata = {
++      .nr_controllers = 1,
++      .preinit =        wg302v1_pci_preinit,
++      .swizzle =        pci_std_swizzle,
++      .setup =          ixp4xx_setup,
++      .scan =           ixp4xx_scan_bus,
++      .map_irq =        wg302v1_map_irq,
++};
++
++int __init wg302v1_pci_init(void)
++{
++      if (machine_is_wg302v1())
++              pci_common_init(&wg302v1_pci);
++      return 0;
++}
++
++subsys_initcall(wg302v1_pci_init);
+--- /dev/null
++++ b/arch/arm/mach-ixp4xx/wg302v1-setup.c
+@@ -0,0 +1,142 @@
++/*
++ * arch/arm/mach-ixp4xx/wg302v1-setup.c
++ *
++ * Board setup for the Netgear WG302 v1 and WAG302 v1
++ *
++ * Copyright (C) 2008 Imre Kaloz <kaloz@openwrt.org>
++ *
++ * based on coyote-setup.c:
++ *      Copyright (C) 2003-2005 MontaVista Software, Inc.
++ *
++ * Author: Imre Kaloz <kaloz@openwrt.org>
++ *
++ */
++
++#include <linux/kernel.h>
++#include <linux/init.h>
++#include <linux/device.h>
++#include <linux/serial.h>
++#include <linux/tty.h>
++#include <linux/serial_8250.h>
++#include <linux/slab.h>
++#include <linux/types.h>
++#include <linux/memory.h>
++
++#include <asm/setup.h>
++#include <mach/hardware.h>
++#include <asm/irq.h>
++#include <asm/mach-types.h>
++#include <asm/mach/arch.h>
++#include <asm/mach/flash.h>
++
++static struct flash_platform_data wg302v1_flash_data = {
++      .map_name       = "cfi_probe",
++      .width          = 2,
++};
++
++static struct resource wg302v1_flash_resource = {
++      .flags          = IORESOURCE_MEM,
++};
++
++static struct platform_device wg302v1_flash = {
++      .name           = "IXP4XX-Flash",
++      .id             = 0,
++      .dev            = {
++              .platform_data = &wg302v1_flash_data,
++      },
++      .num_resources  = 1,
++      .resource       = &wg302v1_flash_resource,
++};
++
++static struct resource wg302v1_uart_resources[] = {
++      {
++              .start  = IXP4XX_UART1_BASE_PHYS,
++              .end    = IXP4XX_UART1_BASE_PHYS + 0x0fff,
++              .flags  = IORESOURCE_MEM,
++      },
++      {
++              .start  = IXP4XX_UART2_BASE_PHYS,
++              .end    = IXP4XX_UART2_BASE_PHYS + 0x0fff,
++              .flags  = IORESOURCE_MEM,
++      }
++};
++
++static struct plat_serial8250_port wg302v1_uart_data[] = {
++      {
++              .mapbase        = IXP4XX_UART1_BASE_PHYS,
++              .membase        = (char *)IXP4XX_UART1_BASE_VIRT + REG_OFFSET,
++              .irq            = IRQ_IXP4XX_UART1,
++              .flags          = UPF_BOOT_AUTOCONF | UPF_SKIP_TEST,
++              .iotype         = UPIO_MEM,
++              .regshift       = 2,
++              .uartclk        = IXP4XX_UART_XTAL,
++      },
++      {
++              .mapbase        = IXP4XX_UART2_BASE_PHYS,
++              .membase        = (char *)IXP4XX_UART2_BASE_VIRT + REG_OFFSET,
++              .irq            = IRQ_IXP4XX_UART2,
++              .flags          = UPF_BOOT_AUTOCONF | UPF_SKIP_TEST,
++              .iotype         = UPIO_MEM,
++              .regshift       = 2,
++              .uartclk        = IXP4XX_UART_XTAL,
++      },
++      { },
++};
++
++static struct platform_device wg302v1_uart = {
++      .name           = "serial8250",
++      .id             = PLAT8250_DEV_PLATFORM,
++      .dev                    = {
++              .platform_data  = wg302v1_uart_data,
++      },
++      .num_resources  = 2,
++      .resource       = wg302v1_uart_resources,
++};
++
++static struct eth_plat_info wg302v1_plat_eth[] = {
++      {
++              .phy            = 30,
++              .rxq            = 3,
++              .txreadyq       = 20,
++      }
++};
++
++static struct platform_device wg302v1_eth[] = {
++      {
++              .name                   = "ixp4xx_eth",
++              .id                     = IXP4XX_ETH_NPEB,
++              .dev.platform_data      = wg302v1_plat_eth,
++      }
++};
++
++static struct platform_device *wg302v1_devices[] __initdata = {
++      &wg302v1_flash,
++      &wg302v1_uart,
++      &wg302v1_eth[0],
++};
++
++static void __init wg302v1_init(void)
++{
++      ixp4xx_sys_init();
++
++      wg302v1_flash_resource.start = IXP4XX_EXP_BUS_BASE(0);
++      wg302v1_flash_resource.end = IXP4XX_EXP_BUS_BASE(0) + SZ_32M - 1;
++
++      *IXP4XX_EXP_CS0 |= IXP4XX_FLASH_WRITABLE;
++      *IXP4XX_EXP_CS1 = *IXP4XX_EXP_CS0;
++
++      platform_add_devices(wg302v1_devices, ARRAY_SIZE(wg302v1_devices));
++}
++
++#ifdef CONFIG_MACH_WG302V1
++MACHINE_START(WG302V1, "Netgear WG302 v1 / WAG302 v1")
++      /* Maintainer: Imre Kaloz <kaloz@openwrt.org> */
++      .phys_io        = IXP4XX_PERIPHERAL_BASE_PHYS,
++      .io_pg_offst    = ((IXP4XX_PERIPHERAL_BASE_VIRT) >> 18) & 0xfffc,
++      .map_io         = ixp4xx_map_io,
++      .init_irq       = ixp4xx_init_irq,
++      .timer          = &ixp4xx_timer,
++      .boot_params    = 0x0100,
++      .init_machine   = wg302v1_init,
++MACHINE_END
++#endif

diff --git a/target/linux/ixp4xx/patches-2.6.32/110-pronghorn_series_support.patch b/target/linux/ixp4xx/patches-2.6.32/110-pronghorn_series_support.patch
new file mode 100644 (file)
index 0000000..c038692
--- /dev/null
+++ b/target/linux/ixp4xx/patches-2.6.32/110-pronghorn_series_support.patch
@@ -0,0 +1,387 @@
+--- a/arch/arm/configs/ixp4xx_defconfig
++++ b/arch/arm/configs/ixp4xx_defconfig
+@@ -157,6 +157,8 @@ CONFIG_ARCH_ADI_COYOTE=y
+ CONFIG_MACH_GATEWAY7001=y
+ CONFIG_MACH_WG302V1=y
+ CONFIG_MACH_WG302V2=y
++CONFIG_MACH_PRONGHORN=y
++CONFIG_MACH_PRONGHORNMETRO=y
+ CONFIG_ARCH_IXDP425=y
+ CONFIG_MACH_IXDPG425=y
+ CONFIG_MACH_IXDP465=y
+--- a/arch/arm/mach-ixp4xx/Kconfig
++++ b/arch/arm/mach-ixp4xx/Kconfig
+@@ -65,6 +65,22 @@ config MACH_WG302V2
+         WG302 v2 or WAG302 v2 Access Points. For more information
+         on this platform, see http://openwrt.org
+ 
++config MACH_PRONGHORN
++      bool "ADI Pronghorn series"
++      select PCI
++      help
++        Say 'Y' here if you want your kernel to support the ADI 
++        Engineering Pronghorn series. For more
++        information on this platform, see http://www.adiengineering.com
++
++#
++# There're only minimal differences kernel-wise between the Pronghorn and
++# Pronghorn Metro boards - they use different chip selects to drive the
++# CF slot connected to the expansion bus, so we just enable them together.
++#
++config MACH_PRONGHORNMETRO
++      def_bool MACH_PRONGHORN
++
+ config ARCH_IXDP425
+       bool "IXDP425"
+       help
+--- a/arch/arm/mach-ixp4xx/Makefile
++++ b/arch/arm/mach-ixp4xx/Makefile
+@@ -17,6 +17,7 @@ obj-pci-$(CONFIG_MACH_GATEWAY7001)   += ga
+ obj-pci-$(CONFIG_MACH_WG302V1)                += wg302v1-pci.o
+ obj-pci-$(CONFIG_MACH_WG302V2)                += wg302v2-pci.o
+ obj-pci-$(CONFIG_MACH_FSG)            += fsg-pci.o
++obj-pci-$(CONFIG_MACH_PRONGHORN)      += pronghorn-pci.o
+ 
+ obj-y += common.o
+ 
+@@ -33,6 +34,7 @@ obj-$(CONFIG_MACH_WG302V1)   += wg302v1-se
+ obj-$(CONFIG_MACH_WG302V2)    += wg302v2-setup.o
+ obj-$(CONFIG_MACH_FSG)                += fsg-setup.o
+ obj-$(CONFIG_MACH_GORAMO_MLR) += goramo_mlr.o
++obj-$(CONFIG_MACH_PRONGHORN)  += pronghorn-setup.o
+ 
+ obj-$(CONFIG_PCI)             += $(obj-pci-$(CONFIG_PCI)) common-pci.o
+ obj-$(CONFIG_IXP4XX_QMGR)     += ixp4xx_qmgr.o
+--- /dev/null
++++ b/arch/arm/mach-ixp4xx/pronghorn-pci.c
+@@ -0,0 +1,70 @@
++/*
++ * arch/arch/mach-ixp4xx/pronghorn-pci.c
++ *
++ * PCI setup routines for ADI Engineering Pronghorn series
++ *
++ * Copyright (C) 2008 Imre Kaloz <kaloz@openwrt.org>
++ *
++ * based on coyote-pci.c:
++ *    Copyright (C) 2002 Jungo Software Technologies.
++ *    Copyright (C) 2003 MontaVista Softwrae, Inc.
++ *
++ * Maintainer: Imre Kaloz <kaloz@openwrt.org>
++ *
++ * 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 <linux/kernel.h>
++#include <linux/pci.h>
++#include <linux/init.h>
++#include <linux/irq.h>
++
++#include <asm/mach-types.h>
++#include <mach/hardware.h>
++
++#include <asm/mach/pci.h>
++
++void __init pronghorn_pci_preinit(void)
++{
++      set_irq_type(IRQ_IXP4XX_GPIO4, IRQ_TYPE_LEVEL_LOW);
++      set_irq_type(IRQ_IXP4XX_GPIO6, IRQ_TYPE_LEVEL_LOW);
++      set_irq_type(IRQ_IXP4XX_GPIO11, IRQ_TYPE_LEVEL_LOW);
++      set_irq_type(IRQ_IXP4XX_GPIO1, IRQ_TYPE_LEVEL_LOW);
++
++      ixp4xx_pci_preinit();
++}
++
++static int __init pronghorn_map_irq(struct pci_dev *dev, u8 slot, u8 pin)
++{
++      if (slot == 13)
++              return IRQ_IXP4XX_GPIO4;
++      else if (slot == 14)
++              return IRQ_IXP4XX_GPIO6;
++      else if (slot == 15)
++              return IRQ_IXP4XX_GPIO11;
++      else if (slot == 16)
++              return IRQ_IXP4XX_GPIO1;
++      else
++              return -1;
++}
++
++struct hw_pci pronghorn_pci __initdata = {
++      .nr_controllers = 1,
++      .preinit        = pronghorn_pci_preinit,
++      .swizzle        = pci_std_swizzle,
++      .setup          = ixp4xx_setup,
++      .scan           = ixp4xx_scan_bus,
++      .map_irq        = pronghorn_map_irq,
++};
++
++int __init pronghorn_pci_init(void)
++{
++      if (machine_is_pronghorn() || machine_is_pronghorn_metro())
++              pci_common_init(&pronghorn_pci);
++      return 0;
++}
++
++subsys_initcall(pronghorn_pci_init);
+--- /dev/null
++++ b/arch/arm/mach-ixp4xx/pronghorn-setup.c
+@@ -0,0 +1,245 @@
++/*
++ * arch/arm/mach-ixp4xx/pronghorn-setup.c
++ *
++ * Board setup for the ADI Engineering Pronghorn series
++ *
++ * Copyright (C) 2008 Imre Kaloz <Kaloz@openwrt.org>
++ *
++ * based on coyote-setup.c:
++ *      Copyright (C) 2003-2005 MontaVista Software, Inc.
++ *
++ * Author: Imre Kaloz <Kaloz@openwrt.org>
++ */
++
++#include <linux/kernel.h>
++#include <linux/init.h>
++#include <linux/device.h>
++#include <linux/serial.h>
++#include <linux/tty.h>
++#include <linux/serial_8250.h>
++#include <linux/slab.h>
++#include <linux/types.h>
++#include <linux/memory.h>
++#include <linux/i2c-gpio.h>
++#include <linux/leds.h>
++
++#include <asm/setup.h>
++#include <mach/hardware.h>
++#include <asm/irq.h>
++#include <asm/mach-types.h>
++#include <asm/mach/arch.h>
++#include <asm/mach/flash.h>
++
++static struct flash_platform_data pronghorn_flash_data = {
++      .map_name       = "cfi_probe",
++      .width          = 2,
++};
++
++static struct resource pronghorn_flash_resource = {
++      .flags          = IORESOURCE_MEM,
++};
++
++static struct platform_device pronghorn_flash = {
++      .name           = "IXP4XX-Flash",
++      .id             = 0,
++      .dev            = {
++              .platform_data  = &pronghorn_flash_data,
++      },
++      .num_resources  = 1,
++      .resource       = &pronghorn_flash_resource,
++};
++
++static struct resource pronghorn_uart_resources [] = {
++      {
++              .start          = IXP4XX_UART1_BASE_PHYS,
++              .end            = IXP4XX_UART1_BASE_PHYS + 0x0fff,
++              .flags          = IORESOURCE_MEM
++      },
++      {
++              .start          = IXP4XX_UART2_BASE_PHYS,
++              .end            = IXP4XX_UART2_BASE_PHYS + 0x0fff,
++              .flags          = IORESOURCE_MEM
++      }
++};
++
++static struct plat_serial8250_port pronghorn_uart_data[] = {
++      {
++              .mapbase        = IXP4XX_UART1_BASE_PHYS,
++              .membase        = (char *)IXP4XX_UART1_BASE_VIRT + REG_OFFSET,
++              .irq            = IRQ_IXP4XX_UART1,
++              .flags          = UPF_BOOT_AUTOCONF | UPF_SKIP_TEST,
++              .iotype         = UPIO_MEM,
++              .regshift       = 2,
++              .uartclk        = IXP4XX_UART_XTAL,
++      },
++      {
++              .mapbase        = IXP4XX_UART2_BASE_PHYS,
++              .membase        = (char *)IXP4XX_UART2_BASE_VIRT + REG_OFFSET,
++              .irq            = IRQ_IXP4XX_UART2,
++              .flags          = UPF_BOOT_AUTOCONF | UPF_SKIP_TEST,
++              .iotype         = UPIO_MEM,
++              .regshift       = 2,
++              .uartclk        = IXP4XX_UART_XTAL,
++      },
++      { },
++};
++
++static struct platform_device pronghorn_uart = {
++      .name           = "serial8250",
++      .id             = PLAT8250_DEV_PLATFORM,
++      .dev            = {
++              .platform_data  = pronghorn_uart_data,
++      },
++      .num_resources  = 2,
++      .resource       = pronghorn_uart_resources,
++};
++
++static struct i2c_gpio_platform_data pronghorn_i2c_gpio_data = {
++      .sda_pin        = 9,
++      .scl_pin        = 10,
++};
++
++static struct platform_device pronghorn_i2c_gpio = {
++      .name           = "i2c-gpio",
++      .id             = 0,
++      .dev            = {
++              .platform_data  = &pronghorn_i2c_gpio_data,
++      },
++};
++
++static struct gpio_led pronghorn_led_pin[] = {
++      {
++              .name           = "pronghorn:green:status",
++              .gpio           = 7,
++      }
++};
++
++static struct gpio_led_platform_data pronghorn_led_data = {
++      .num_leds               = 1,
++      .leds                   = pronghorn_led_pin,
++};
++
++static struct platform_device pronghorn_led = {
++      .name                   = "leds-gpio",
++      .id                     = -1,
++      .dev.platform_data      = &pronghorn_led_data,
++};
++
++static struct resource pronghorn_pata_resources[] = {
++      {
++              .flags  = IORESOURCE_MEM
++      },
++      {
++              .flags  = IORESOURCE_MEM,
++      },
++      {
++              .name   = "intrq",
++              .start  = IRQ_IXP4XX_GPIO0,
++              .end    = IRQ_IXP4XX_GPIO0,
++              .flags  = IORESOURCE_IRQ,
++      },
++};
++
++static struct ixp4xx_pata_data pronghorn_pata_data = {
++      .cs0_bits       = 0xbfff0043,
++      .cs1_bits       = 0xbfff0043,
++};
++
++static struct platform_device pronghorn_pata = {
++      .name                   = "pata_ixp4xx_cf",
++      .id                     = 0,
++      .dev.platform_data      = &pronghorn_pata_data,
++      .num_resources          = ARRAY_SIZE(pronghorn_pata_resources),
++      .resource               = pronghorn_pata_resources,
++};
++
++static struct eth_plat_info pronghorn_plat_eth[] = {
++      {
++              .phy            = 0,
++              .rxq            = 3,
++              .txreadyq       = 20,
++      }, {
++              .phy            = 1,
++              .rxq            = 4,
++              .txreadyq       = 21,
++      }
++};
++
++static struct platform_device pronghorn_eth[] = {
++      {
++              .name                   = "ixp4xx_eth",
++              .id                     = IXP4XX_ETH_NPEB,
++              .dev.platform_data      = pronghorn_plat_eth,
++      }, {
++              .name                   = "ixp4xx_eth",
++              .id                     = IXP4XX_ETH_NPEC,
++              .dev.platform_data      = pronghorn_plat_eth + 1,
++      }
++};
++
++static struct platform_device *pronghorn_devices[] __initdata = {
++      &pronghorn_flash,
++      &pronghorn_uart,
++      &pronghorn_led,
++      &pronghorn_eth[0],
++      &pronghorn_eth[1],
++};
++
++static void __init pronghorn_init(void)
++{
++      ixp4xx_sys_init();
++
++      pronghorn_flash_resource.start = IXP4XX_EXP_BUS_BASE(0);
++      pronghorn_flash_resource.end = IXP4XX_EXP_BUS_BASE(0) + SZ_32M - 1;
++
++      *IXP4XX_EXP_CS0 |= IXP4XX_FLASH_WRITABLE;
++      *IXP4XX_EXP_CS1 = *IXP4XX_EXP_CS0;
++
++      platform_add_devices(pronghorn_devices, ARRAY_SIZE(pronghorn_devices));
++
++      if (machine_is_pronghorn()) {
++              pronghorn_pata_resources[0].start = IXP4XX_EXP_BUS_BASE(2);
++              pronghorn_pata_resources[0].end = IXP4XX_EXP_BUS_END(2);
++
++              pronghorn_pata_resources[1].start = IXP4XX_EXP_BUS_BASE(3);
++              pronghorn_pata_resources[1].end = IXP4XX_EXP_BUS_END(3);
++
++              pronghorn_pata_data.cs0_cfg = IXP4XX_EXP_CS2;
++              pronghorn_pata_data.cs1_cfg = IXP4XX_EXP_CS3;
++      } else {
++              pronghorn_pata_resources[0].start = IXP4XX_EXP_BUS_BASE(3);
++              pronghorn_pata_resources[0].end = IXP4XX_EXP_BUS_END(3);
++
++              pronghorn_pata_resources[1].start = IXP4XX_EXP_BUS_BASE(4);
++              pronghorn_pata_resources[1].end = IXP4XX_EXP_BUS_END(4);
++
++              pronghorn_pata_data.cs0_cfg = IXP4XX_EXP_CS3;
++              pronghorn_pata_data.cs1_cfg = IXP4XX_EXP_CS4;
++
++              platform_device_register(&pronghorn_i2c_gpio);
++      }
++
++      platform_device_register(&pronghorn_pata);
++}
++
++MACHINE_START(PRONGHORN, "ADI Engineering Pronghorn")
++      /* Maintainer: Imre Kaloz <kaloz@openwrt.org> */
++      .phys_io        = IXP4XX_PERIPHERAL_BASE_PHYS,
++      .io_pg_offst    = ((IXP4XX_PERIPHERAL_BASE_VIRT) >> 18) & 0xfffc,
++      .map_io         = ixp4xx_map_io,
++      .init_irq       = ixp4xx_init_irq,
++      .timer          = &ixp4xx_timer,
++      .boot_params    = 0x0100,
++      .init_machine   = pronghorn_init,
++MACHINE_END
++
++MACHINE_START(PRONGHORNMETRO, "ADI Engineering Pronghorn Metro")
++      /* Maintainer: Imre Kaloz <kaloz@openwrt.org> */
++      .phys_io        = IXP4XX_PERIPHERAL_BASE_PHYS,
++      .io_pg_offst    = ((IXP4XX_PERIPHERAL_BASE_VIRT) >> 18) & 0xfffc,
++      .map_io         = ixp4xx_map_io,
++      .init_irq       = ixp4xx_init_irq,
++      .timer          = &ixp4xx_timer,
++      .boot_params    = 0x0100,
++      .init_machine   = pronghorn_init,
++MACHINE_END
+--- a/arch/arm/mach-ixp4xx/include/mach/uncompress.h
++++ b/arch/arm/mach-ixp4xx/include/mach/uncompress.h
+@@ -41,7 +41,8 @@ static __inline__ void __arch_decomp_set
+        * Some boards are using UART2 as console
+        */
+       if (machine_is_adi_coyote() || machine_is_gtwx5715() ||
+-                       machine_is_gateway7001() || machine_is_wg302v2())
++                       machine_is_gateway7001() || machine_is_wg302v2() ||
++                       machine_is_pronghorn() || machine_is_pronghorn_metro())
+               uart_base = (volatile u32*) IXP4XX_UART2_BASE_PHYS;
+       else
+               uart_base = (volatile u32*) IXP4XX_UART1_BASE_PHYS;

diff --git a/target/linux/ixp4xx/patches-2.6.32/111-pronghorn_swap_uarts.patch b/target/linux/ixp4xx/patches-2.6.32/111-pronghorn_swap_uarts.patch
new file mode 100644 (file)
index 0000000..b9fa507
--- /dev/null
+++ b/target/linux/ixp4xx/patches-2.6.32/111-pronghorn_swap_uarts.patch
@@ -0,0 +1,44 @@
+--- a/arch/arm/mach-ixp4xx/pronghorn-setup.c
++++ b/arch/arm/mach-ixp4xx/pronghorn-setup.c
+@@ -51,31 +51,31 @@ static struct platform_device pronghorn_
+ 
+ static struct resource pronghorn_uart_resources [] = {
+       {
+-              .start          = IXP4XX_UART1_BASE_PHYS,
+-              .end            = IXP4XX_UART1_BASE_PHYS + 0x0fff,
++              .start          = IXP4XX_UART2_BASE_PHYS,
++              .end            = IXP4XX_UART2_BASE_PHYS + 0x0fff,
+               .flags          = IORESOURCE_MEM
+       },
+       {
+-              .start          = IXP4XX_UART2_BASE_PHYS,
+-              .end            = IXP4XX_UART2_BASE_PHYS + 0x0fff,
++              .start          = IXP4XX_UART1_BASE_PHYS,
++              .end            = IXP4XX_UART1_BASE_PHYS + 0x0fff,
+               .flags          = IORESOURCE_MEM
+       }
+ };
+ 
+ static struct plat_serial8250_port pronghorn_uart_data[] = {
+       {
+-              .mapbase        = IXP4XX_UART1_BASE_PHYS,
+-              .membase        = (char *)IXP4XX_UART1_BASE_VIRT + REG_OFFSET,
+-              .irq            = IRQ_IXP4XX_UART1,
++              .mapbase        = IXP4XX_UART2_BASE_PHYS,
++              .membase        = (char *)IXP4XX_UART2_BASE_VIRT + REG_OFFSET,
++              .irq            = IRQ_IXP4XX_UART2,
+               .flags          = UPF_BOOT_AUTOCONF | UPF_SKIP_TEST,
+               .iotype         = UPIO_MEM,
+               .regshift       = 2,
+               .uartclk        = IXP4XX_UART_XTAL,
+       },
+       {
+-              .mapbase        = IXP4XX_UART2_BASE_PHYS,
+-              .membase        = (char *)IXP4XX_UART2_BASE_VIRT + REG_OFFSET,
+-              .irq            = IRQ_IXP4XX_UART2,
++              .mapbase        = IXP4XX_UART1_BASE_PHYS,
++              .membase        = (char *)IXP4XX_UART1_BASE_VIRT + REG_OFFSET,
++              .irq            = IRQ_IXP4XX_UART1,
+               .flags          = UPF_BOOT_AUTOCONF | UPF_SKIP_TEST,
+               .iotype         = UPIO_MEM,
+               .regshift       = 2,

diff --git a/target/linux/ixp4xx/patches-2.6.32/115-sidewinder_support.patch b/target/linux/ixp4xx/patches-2.6.32/115-sidewinder_support.patch
new file mode 100644 (file)
index 0000000..bad0826
--- /dev/null
+++ b/target/linux/ixp4xx/patches-2.6.32/115-sidewinder_support.patch
@@ -0,0 +1,282 @@
+From 60bdaaaf3446b4237566c6e04855186fc7bd766b Mon Sep 17 00:00:00 2001
+From: Imre Kaloz <kaloz@openwrt.org>
+Date: Sun, 13 Jul 2008 22:46:45 +0200
+Subject: [PATCH] Add support for the ADI Sidewinder
+
+Signed-off-by: Imre Kaloz <kaloz@openwrt.org>
+---
+ arch/arm/mach-ixp4xx/Kconfig            |   10 ++-
+ arch/arm/mach-ixp4xx/Makefile           |    2 +
+ arch/arm/mach-ixp4xx/sidewinder-pci.c   |   68 ++++++++++++++
+ arch/arm/mach-ixp4xx/sidewinder-setup.c |  151 +++++++++++++++++++++++++++++++
+ 4 files changed, 230 insertions(+), 1 deletions(-)
+ create mode 100644 arch/arm/mach-ixp4xx/sidewinder-pci.c
+ create mode 100644 arch/arm/mach-ixp4xx/sidewinder-setup.c
+
+--- a/arch/arm/mach-ixp4xx/Kconfig
++++ b/arch/arm/mach-ixp4xx/Kconfig
+@@ -81,6 +81,14 @@ config MACH_PRONGHORN
+ config MACH_PRONGHORNMETRO
+       def_bool MACH_PRONGHORN
+ 
++config MACH_SIDEWINDER
++      bool "ADI Sidewinder"
++      select PCI
++      help
++        Say 'Y' here if you want your kernel to support the ADI 
++        Engineering Sidewinder board. For more information on this
++        platform, see http://www.adiengineering.com
++
+ config ARCH_IXDP425
+       bool "IXDP425"
+       help
+@@ -169,7 +177,7 @@ config MACH_FSG
+ #
+ config CPU_IXP46X
+       bool
+-      depends on MACH_IXDP465
++      depends on MACH_IXDP465 || MACH_SIDEWINDER
+       default y
+ 
+ config CPU_IXP43X
+--- a/arch/arm/mach-ixp4xx/Makefile
++++ b/arch/arm/mach-ixp4xx/Makefile
+@@ -18,6 +18,7 @@ obj-pci-$(CONFIG_MACH_WG302V1)               += wg302
+ obj-pci-$(CONFIG_MACH_WG302V2)                += wg302v2-pci.o
+ obj-pci-$(CONFIG_MACH_FSG)            += fsg-pci.o
+ obj-pci-$(CONFIG_MACH_PRONGHORN)      += pronghorn-pci.o
++obj-pci-$(CONFIG_MACH_SIDEWINDER)     += sidewinder-pci.o
+ 
+ obj-y += common.o
+ 
+@@ -35,6 +36,7 @@ obj-$(CONFIG_MACH_WG302V2)   += wg302v2-se
+ obj-$(CONFIG_MACH_FSG)                += fsg-setup.o
+ obj-$(CONFIG_MACH_GORAMO_MLR) += goramo_mlr.o
+ obj-$(CONFIG_MACH_PRONGHORN)  += pronghorn-setup.o
++obj-$(CONFIG_MACH_SIDEWINDER) += sidewinder-setup.o
+ 
+ obj-$(CONFIG_PCI)             += $(obj-pci-$(CONFIG_PCI)) common-pci.o
+ obj-$(CONFIG_IXP4XX_QMGR)     += ixp4xx_qmgr.o
+--- /dev/null
++++ b/arch/arm/mach-ixp4xx/sidewinder-pci.c
+@@ -0,0 +1,68 @@
++/*
++ * arch/arch/mach-ixp4xx/pronghornmetro-pci.c
++ *
++ * PCI setup routines for ADI Engineering Sidewinder
++ *
++ * Copyright (C) 2008 Imre Kaloz <kaloz@openwrt.org>
++ *
++ * based on coyote-pci.c:
++ *    Copyright (C) 2002 Jungo Software Technologies.
++ *    Copyright (C) 2003 MontaVista Softwrae, Inc.
++ *
++ * Maintainer: Imre Kaloz <kaloz@openwrt.org>
++ *
++ * 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 <linux/kernel.h>
++#include <linux/pci.h>
++#include <linux/init.h>
++#include <linux/irq.h>
++
++#include <asm/mach-types.h>
++#include <mach/hardware.h>
++#include <asm/irq.h>
++
++#include <asm/mach/pci.h>
++
++void __init sidewinder_pci_preinit(void)
++{
++      set_irq_type(IRQ_IXP4XX_GPIO11, IRQ_TYPE_LEVEL_LOW);
++      set_irq_type(IRQ_IXP4XX_GPIO10, IRQ_TYPE_LEVEL_LOW);
++      set_irq_type(IRQ_IXP4XX_GPIO9, IRQ_TYPE_LEVEL_LOW);
++
++      ixp4xx_pci_preinit();
++}
++
++static int __init sidewinder_map_irq(struct pci_dev *dev, u8 slot, u8 pin)
++{
++      if (slot == 1)
++              return IRQ_IXP4XX_GPIO11;
++      else if (slot == 2)
++              return IRQ_IXP4XX_GPIO10;
++      else if (slot == 3)
++              return IRQ_IXP4XX_GPIO9;
++      else
++              return -1;
++}
++
++struct hw_pci sidewinder_pci __initdata = {
++      .nr_controllers = 1,
++      .preinit        = sidewinder_pci_preinit,
++      .swizzle        = pci_std_swizzle,
++      .setup          = ixp4xx_setup,
++      .scan           = ixp4xx_scan_bus,
++      .map_irq        = sidewinder_map_irq,
++};
++
++int __init sidewinder_pci_init(void)
++{
++      if (machine_is_sidewinder())
++              pci_common_init(&sidewinder_pci);
++      return 0;
++}
++
++subsys_initcall(sidewinder_pci_init);
+--- /dev/null
++++ b/arch/arm/mach-ixp4xx/sidewinder-setup.c
+@@ -0,0 +1,149 @@
++/*
++ * arch/arm/mach-ixp4xx/sidewinder-setup.c
++ *
++ * Board setup for the ADI Engineering Sidewinder
++ *
++ * Copyright (C) 2008 Imre Kaloz <Kaloz@openwrt.org>
++ *
++ * based on coyote-setup.c:
++ *      Copyright (C) 2003-2005 MontaVista Software, Inc.
++ *
++ * Author: Imre Kaloz <Kaloz@openwrt.org>
++ */
++
++#include <linux/kernel.h>
++#include <linux/serial.h>
++#include <linux/serial_8250.h>
++
++#include <asm/mach-types.h>
++#include <asm/mach/arch.h>
++#include <asm/mach/flash.h>
++
++static struct flash_platform_data sidewinder_flash_data = {
++      .map_name       = "cfi_probe",
++      .width          = 2,
++};
++
++static struct resource sidewinder_flash_resource = {
++      .flags          = IORESOURCE_MEM,
++};
++
++static struct platform_device sidewinder_flash = {
++      .name           = "IXP4XX-Flash",
++      .id             = 0,
++      .dev            = {
++              .platform_data = &sidewinder_flash_data,
++      },
++      .num_resources  = 1,
++      .resource       = &sidewinder_flash_resource,
++};
++
++static struct resource sidewinder_uart_resources[] = {
++      {
++              .start  = IXP4XX_UART1_BASE_PHYS,
++              .end    = IXP4XX_UART1_BASE_PHYS + 0x0fff,
++              .flags  = IORESOURCE_MEM,
++      },
++      {
++              .start  = IXP4XX_UART2_BASE_PHYS,
++              .end    = IXP4XX_UART2_BASE_PHYS + 0x0fff,
++              .flags  = IORESOURCE_MEM,
++      }
++};
++
++static struct plat_serial8250_port sidewinder_uart_data[] = {
++      {
++              .mapbase        = IXP4XX_UART1_BASE_PHYS,
++              .membase        = (char *)IXP4XX_UART1_BASE_VIRT + REG_OFFSET,
++              .irq            = IRQ_IXP4XX_UART1,
++              .flags          = UPF_BOOT_AUTOCONF | UPF_SKIP_TEST,
++              .iotype         = UPIO_MEM,
++              .regshift       = 2,
++              .uartclk        = IXP4XX_UART_XTAL,
++      },
++      {
++              .mapbase        = IXP4XX_UART2_BASE_PHYS,
++              .membase        = (char *)IXP4XX_UART2_BASE_VIRT + REG_OFFSET,
++              .irq            = IRQ_IXP4XX_UART2,
++              .flags          = UPF_BOOT_AUTOCONF | UPF_SKIP_TEST,
++              .iotype         = UPIO_MEM,
++              .regshift       = 2,
++              .uartclk        = IXP4XX_UART_XTAL,
++      },
++      { },
++};
++
++static struct platform_device sidewinder_uart = {
++      .name           = "serial8250",
++      .id             = PLAT8250_DEV_PLATFORM,
++      .dev            = {
++              .platform_data  = sidewinder_uart_data,
++      },
++      .num_resources  = ARRAY_SIZE(sidewinder_uart_resources),
++      .resource       = sidewinder_uart_resources,
++};
++
++static struct eth_plat_info sidewinder_plat_eth[] = {
++      {
++              .phy            = 5,
++              .rxq            = 3,
++              .txreadyq       = 20,
++      }, {
++              .phy            = IXP4XX_ETH_PHY_MAX_ADDR,
++              .phy_mask       = 0x1e,
++              .rxq            = 4,
++              .txreadyq       = 21,
++      }, {
++              .phy            = 31,
++              .rxq            = 2,
++              .txreadyq       = 19,
++      }
++};
++
++static struct platform_device sidewinder_eth[] = {
++      {
++              .name                   = "ixp4xx_eth",
++              .id                     = IXP4XX_ETH_NPEB,
++              .dev.platform_data      = sidewinder_plat_eth,
++      }, {
++              .name                   = "ixp4xx_eth",
++              .id                     = IXP4XX_ETH_NPEC,
++              .dev.platform_data      = sidewinder_plat_eth + 1,
++      }, {
++              .name                   = "ixp4xx_eth",
++              .id                     = IXP4XX_ETH_NPEA,
++              .dev.platform_data      = sidewinder_plat_eth + 2,
++      }
++};
++
++static struct platform_device *sidewinder_devices[] __initdata = {
++      &sidewinder_flash,
++      &sidewinder_uart,
++      &sidewinder_eth[0],
++      &sidewinder_eth[1],
++      &sidewinder_eth[2],
++};
++
++static void __init sidewinder_init(void)
++{
++      ixp4xx_sys_init();
++
++      sidewinder_flash_resource.start = IXP4XX_EXP_BUS_BASE(0);
++      sidewinder_flash_resource.end = IXP4XX_EXP_BUS_BASE(0) + SZ_64M - 1;
++
++      *IXP4XX_EXP_CS0 |= IXP4XX_FLASH_WRITABLE;
++      *IXP4XX_EXP_CS1 = *IXP4XX_EXP_CS0;
++
++      platform_add_devices(sidewinder_devices, ARRAY_SIZE(sidewinder_devices));
++}
++
++MACHINE_START(SIDEWINDER, "ADI Engineering Sidewinder")
++      /* Maintainer: Imre Kaloz <kaloz@openwrt.org> */
++      .phys_io        = IXP4XX_PERIPHERAL_BASE_PHYS,
++      .io_pg_offst    = ((IXP4XX_PERIPHERAL_BASE_VIRT) >> 18) & 0xfffc,
++      .map_io         = ixp4xx_map_io,
++      .init_irq       = ixp4xx_init_irq,
++      .timer          = &ixp4xx_timer,
++      .boot_params    = 0x0100,
++      .init_machine   = sidewinder_init,
++MACHINE_END

diff --git a/target/linux/ixp4xx/patches-2.6.32/116-sidewinder_fis_location.patch b/target/linux/ixp4xx/patches-2.6.32/116-sidewinder_fis_location.patch
new file mode 100644 (file)
index 0000000..1d0a983
--- /dev/null
+++ b/target/linux/ixp4xx/patches-2.6.32/116-sidewinder_fis_location.patch
@@ -0,0 +1,30 @@
+--- a/drivers/mtd/redboot.c
++++ b/drivers/mtd/redboot.c
+@@ -13,6 +13,8 @@
+ 
+ #define BOARD_CONFIG_PART             "boardconfig"
+ 
++#include <asm/mach-types.h>
++
+ struct fis_image_desc {
+     unsigned char name[16];      // Null terminated name
+     uint32_t    flash_base;    // Address within FLASH of image
+@@ -30,7 +32,8 @@ struct fis_list {
+       struct fis_list *next;
+ };
+ 
+-static int directory = CONFIG_MTD_REDBOOT_DIRECTORY_BLOCK;
++int directory = CONFIG_MTD_REDBOOT_DIRECTORY_BLOCK;
++
+ module_param(directory, int, 0);
+ 
+ static inline int redboot_checksum(struct fis_image_desc *img)
+@@ -59,6 +62,8 @@ static int parse_redboot_partitions(stru
+ #ifdef CONFIG_MTD_REDBOOT_PARTS_UNALLOCATED
+       static char nullstring[] = "unallocated";
+ #endif
++      if (machine_is_sidewinder())
++              directory = -5;
+ 
+       if ( directory < 0 ) {
+               offset = master->size + directory * master->erasesize;

diff --git a/target/linux/ixp4xx/patches-2.6.32/120-compex_support.patch b/target/linux/ixp4xx/patches-2.6.32/120-compex_support.patch
new file mode 100644 (file)
index 0000000..ccac8cc
--- /dev/null
+++ b/target/linux/ixp4xx/patches-2.6.32/120-compex_support.patch
@@ -0,0 +1,212 @@
+From 24025a2dcf1248079dd3019fac6ed955252d277f Mon Sep 17 00:00:00 2001
+From: Imre Kaloz <kaloz@openwrt.org>
+Date: Mon, 14 Jul 2008 21:56:34 +0200
+Subject: [PATCH] Add support for the Compex WP18 / NP18A boards
+
+Signed-off-by: Imre Kaloz <kaloz@openwrt.org>
+---
+ arch/arm/mach-ixp4xx/Kconfig        |    8 ++
+ arch/arm/mach-ixp4xx/Makefile       |    2 +
+ arch/arm/mach-ixp4xx/compex-setup.c |  136 +++++++++++++++++++++++++++++++++++
+ arch/arm/mach-ixp4xx/ixdp425-pci.c  |    3 +-
+ arch/arm/tools/mach-types           |    2 +-
+ 5 files changed, 149 insertions(+), 2 deletions(-)
+ create mode 100644 arch/arm/mach-ixp4xx/compex-setup.c
+
+--- a/arch/arm/mach-ixp4xx/Kconfig
++++ b/arch/arm/mach-ixp4xx/Kconfig
+@@ -89,6 +89,14 @@ config MACH_SIDEWINDER
+         Engineering Sidewinder board. For more information on this
+         platform, see http://www.adiengineering.com
+ 
++config MACH_COMPEX
++      bool "Compex WP18 / NP18A"
++      select PCI
++      help
++        Say 'Y' here if you want your kernel to support Compex' 
++        WP18 or NP18A boards. For more information on this
++        platform, see http://www.compex.com.sg/home/OEM/product_ap.htm
++
+ config ARCH_IXDP425
+       bool "IXDP425"
+       help
+--- a/arch/arm/mach-ixp4xx/Makefile
++++ b/arch/arm/mach-ixp4xx/Makefile
+@@ -19,6 +19,7 @@ obj-pci-$(CONFIG_MACH_WG302V2)               += wg302
+ obj-pci-$(CONFIG_MACH_FSG)            += fsg-pci.o
+ obj-pci-$(CONFIG_MACH_PRONGHORN)      += pronghorn-pci.o
+ obj-pci-$(CONFIG_MACH_SIDEWINDER)     += sidewinder-pci.o
++obj-pci-$(CONFIG_MACH_COMPEX)         += ixdp425-pci.o
+ 
+ obj-y += common.o
+ 
+@@ -37,6 +38,7 @@ obj-$(CONFIG_MACH_FSG)               += fsg-setup.o
+ obj-$(CONFIG_MACH_GORAMO_MLR) += goramo_mlr.o
+ obj-$(CONFIG_MACH_PRONGHORN)  += pronghorn-setup.o
+ obj-$(CONFIG_MACH_SIDEWINDER) += sidewinder-setup.o
++obj-$(CONFIG_MACH_COMPEX)     += compex-setup.o
+ 
+ obj-$(CONFIG_PCI)             += $(obj-pci-$(CONFIG_PCI)) common-pci.o
+ obj-$(CONFIG_IXP4XX_QMGR)     += ixp4xx_qmgr.o
+--- /dev/null
++++ b/arch/arm/mach-ixp4xx/compex-setup.c
+@@ -0,0 +1,136 @@
++/*
++ * arch/arm/mach-ixp4xx/compex-setup.c
++ *
++ * Compex WP18 / NP18A board-setup
++ *
++ * Copyright (C) 2008 Imre Kaloz <Kaloz@openwrt.org>
++ *
++ * based on coyote-setup.c:
++ *    Copyright (C) 2003-2005 MontaVista Software, Inc.
++ *
++ * Author: Imre Kaloz <Kaloz@openwrt.org>
++ */
++
++#include <linux/kernel.h>
++#include <linux/serial.h>
++#include <linux/serial_8250.h>
++
++#include <asm/mach-types.h>
++#include <asm/mach/arch.h>
++#include <asm/mach/flash.h>
++
++static struct flash_platform_data compex_flash_data = {
++      .map_name       = "cfi_probe",
++      .width          = 2,
++};
++
++static struct resource compex_flash_resource = {
++      .flags          = IORESOURCE_MEM,
++};
++
++static struct platform_device compex_flash = {
++      .name           = "IXP4XX-Flash",
++      .id             = 0,
++      .dev            = {
++              .platform_data = &compex_flash_data,
++      },
++      .num_resources  = 1,
++      .resource       = &compex_flash_resource,
++};
++
++static struct resource compex_uart_resources[] = {
++      {
++              .start          = IXP4XX_UART1_BASE_PHYS,
++              .end            = IXP4XX_UART1_BASE_PHYS + 0x0fff,
++              .flags          = IORESOURCE_MEM
++      },
++      {
++              .start          = IXP4XX_UART2_BASE_PHYS,
++              .end            = IXP4XX_UART2_BASE_PHYS + 0x0fff,
++              .flags          = IORESOURCE_MEM
++      }
++};
++
++static struct plat_serial8250_port compex_uart_data[] = {
++      {
++              .mapbase        = IXP4XX_UART1_BASE_PHYS,
++              .membase        = (char *)IXP4XX_UART1_BASE_VIRT + REG_OFFSET,
++              .irq            = IRQ_IXP4XX_UART1,
++              .flags          = UPF_BOOT_AUTOCONF | UPF_SKIP_TEST,
++              .iotype         = UPIO_MEM,
++              .regshift       = 2,
++              .uartclk        = IXP4XX_UART_XTAL,
++      },
++      {
++              .mapbase        = IXP4XX_UART2_BASE_PHYS,
++              .membase        = (char *)IXP4XX_UART2_BASE_VIRT + REG_OFFSET,
++              .irq            = IRQ_IXP4XX_UART2,
++              .flags          = UPF_BOOT_AUTOCONF | UPF_SKIP_TEST,
++              .iotype         = UPIO_MEM,
++              .regshift       = 2,
++              .uartclk        = IXP4XX_UART_XTAL,
++      },
++      { },
++};
++
++static struct platform_device compex_uart = {
++      .name                   = "serial8250",
++      .id                     = PLAT8250_DEV_PLATFORM,
++      .dev.platform_data      = compex_uart_data,
++      .num_resources          = 2,
++      .resource               = compex_uart_resources,
++};
++
++static struct eth_plat_info compex_plat_eth[] = {
++      {
++              .phy            = IXP4XX_ETH_PHY_MAX_ADDR,
++              .phy_mask       = 0xf0000,
++              .rxq            = 3,
++              .txreadyq       = 20,
++      }, {
++              .phy            = 3,
++              .rxq            = 4,
++              .txreadyq       = 21,
++      }
++};
++
++static struct platform_device compex_eth[] = {
++      {
++              .name                   = "ixp4xx_eth",
++              .id                     = IXP4XX_ETH_NPEB,
++              .dev.platform_data      = compex_plat_eth,
++      }, {
++              .name                   = "ixp4xx_eth",
++              .id                     = IXP4XX_ETH_NPEC,
++              .dev.platform_data      = compex_plat_eth + 1,
++      }
++};
++
++static struct platform_device *compex_devices[] __initdata = {
++      &compex_flash,
++      &compex_uart,
++      &compex_eth[0],
++      &compex_eth[1],
++};
++
++static void __init compex_init(void)
++{
++      ixp4xx_sys_init();
++
++      compex_flash_resource.start = IXP4XX_EXP_BUS_BASE(0);
++      compex_flash_resource.end =
++              IXP4XX_EXP_BUS_BASE(0) + SZ_32M - 1;
++
++      platform_add_devices(compex_devices, ARRAY_SIZE(compex_devices));
++}
++
++MACHINE_START(COMPEX, "Compex WP18 / NP18A")
++      /* Maintainer: Imre Kaloz <Kaloz@openwrt.org> */
++      .phys_io        = IXP4XX_PERIPHERAL_BASE_PHYS,
++      .io_pg_offst    = ((IXP4XX_PERIPHERAL_BASE_VIRT) >> 18) & 0xfffc,
++      .map_io         = ixp4xx_map_io,
++      .init_irq       = ixp4xx_init_irq,
++      .timer          = &ixp4xx_timer,
++      .boot_params    = 0x0100,
++      .init_machine   = compex_init,
++MACHINE_END
+--- a/arch/arm/mach-ixp4xx/ixdp425-pci.c
++++ b/arch/arm/mach-ixp4xx/ixdp425-pci.c
+@@ -66,7 +66,8 @@ struct hw_pci ixdp425_pci __initdata = {
+ int __init ixdp425_pci_init(void)
+ {
+       if (machine_is_ixdp425() || machine_is_ixcdp1100() ||
+-                      machine_is_ixdp465() || machine_is_kixrp435())
++                      machine_is_ixdp465() || machine_is_kixrp435() ||
++                      machine_is_compex())
+               pci_common_init(&ixdp425_pci);
+       return 0;
+ }
+--- a/arch/arm/tools/mach-types
++++ b/arch/arm/tools/mach-types
+@@ -1273,7 +1273,7 @@ oiab                     MACH_OIAB               OIAB                    1269
+ smdk6400              MACH_SMDK6400           SMDK6400                1270
+ nokia_n800            MACH_NOKIA_N800         NOKIA_N800              1271
+ greenphone            MACH_GREENPHONE         GREENPHONE              1272
+-compex42x             MACH_COMPEXWP18         COMPEXWP18              1273
++compex                        MACH_COMPEX             COMPEX                  1273
+ xmate                 MACH_XMATE              XMATE                   1274
+ energizer             MACH_ENERGIZER          ENERGIZER               1275
+ ime1                  MACH_IME1               IME1                    1276

diff --git a/target/linux/ixp4xx/patches-2.6.32/130-wrt300nv2_support.patch b/target/linux/ixp4xx/patches-2.6.32/130-wrt300nv2_support.patch
new file mode 100644 (file)
index 0000000..c184a6c
--- /dev/null
+++ b/target/linux/ixp4xx/patches-2.6.32/130-wrt300nv2_support.patch
@@ -0,0 +1,225 @@
+--- a/arch/arm/mach-ixp4xx/Kconfig
++++ b/arch/arm/mach-ixp4xx/Kconfig
+@@ -97,6 +97,14 @@ config MACH_COMPEX
+         WP18 or NP18A boards. For more information on this
+         platform, see http://www.compex.com.sg/home/OEM/product_ap.htm
+ 
++config MACH_WRT300NV2
++      bool "Linksys WRT300N v2"
++      select PCI
++      help
++        Say 'Y' here if you want your kernel to support Linksys' 
++        WRT300N v2 router. For more information on this
++        platform, see http://openwrt.org
++
+ config ARCH_IXDP425
+       bool "IXDP425"
+       help
+--- a/arch/arm/mach-ixp4xx/Makefile
++++ b/arch/arm/mach-ixp4xx/Makefile
+@@ -20,6 +20,7 @@ obj-pci-$(CONFIG_MACH_FSG)           += fsg-pci.o
+ obj-pci-$(CONFIG_MACH_PRONGHORN)      += pronghorn-pci.o
+ obj-pci-$(CONFIG_MACH_SIDEWINDER)     += sidewinder-pci.o
+ obj-pci-$(CONFIG_MACH_COMPEX)         += ixdp425-pci.o
++obj-pci-$(CONFIG_MACH_WRT300NV2)              += wrt300nv2-pci.o
+ 
+ obj-y += common.o
+ 
+@@ -39,6 +40,7 @@ obj-$(CONFIG_MACH_GORAMO_MLR)        += goramo_
+ obj-$(CONFIG_MACH_PRONGHORN)  += pronghorn-setup.o
+ obj-$(CONFIG_MACH_SIDEWINDER) += sidewinder-setup.o
+ obj-$(CONFIG_MACH_COMPEX)     += compex-setup.o
++obj-$(CONFIG_MACH_WRT300NV2)  += wrt300nv2-setup.o
+ 
+ obj-$(CONFIG_PCI)             += $(obj-pci-$(CONFIG_PCI)) common-pci.o
+ obj-$(CONFIG_IXP4XX_QMGR)     += ixp4xx_qmgr.o
+--- /dev/null
++++ b/arch/arm/mach-ixp4xx/wrt300nv2-pci.c
+@@ -0,0 +1,65 @@
++/*
++ * arch/arch/mach-ixp4xx/wrt300nv2-pci.c
++ *
++ * PCI setup routines for Linksys WRT300N v2
++ *
++ * Copyright (C) 2007 Imre Kaloz <kaloz@openwrt.org>
++ *
++ * based on coyote-pci.c:
++ *    Copyright (C) 2002 Jungo Software Technologies.
++ *    Copyright (C) 2003 MontaVista Softwrae, Inc.
++ *
++ * Maintainer: Imre Kaloz <kaloz@openwrt.org>
++ *
++ * 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 <linux/kernel.h>
++#include <linux/pci.h>
++#include <linux/init.h>
++#include <linux/irq.h>
++
++#include <asm/mach-types.h>
++#include <mach/hardware.h>
++#include <asm/irq.h>
++
++#include <asm/mach/pci.h>
++
++extern void ixp4xx_pci_preinit(void);
++extern int ixp4xx_setup(int nr, struct pci_sys_data *sys);
++extern struct pci_bus *ixp4xx_scan_bus(int nr, struct pci_sys_data *sys);
++
++void __init wrt300nv2_pci_preinit(void)
++{
++      set_irq_type(IRQ_IXP4XX_GPIO8, IRQ_TYPE_LEVEL_LOW);
++
++      ixp4xx_pci_preinit();
++}
++
++static int __init wrt300nv2_map_irq(struct pci_dev *dev, u8 slot, u8 pin)
++{
++      if (slot == 1)
++              return IRQ_IXP4XX_GPIO8;
++      else return -1;
++}
++
++struct hw_pci wrt300nv2_pci __initdata = {
++      .nr_controllers = 1,
++      .preinit =        wrt300nv2_pci_preinit,
++      .swizzle =        pci_std_swizzle,
++      .setup =          ixp4xx_setup,
++      .scan =           ixp4xx_scan_bus,
++      .map_irq =        wrt300nv2_map_irq,
++};
++
++int __init wrt300nv2_pci_init(void)
++{
++      if (machine_is_wrt300nv2())
++              pci_common_init(&wrt300nv2_pci);
++      return 0;
++}
++
++subsys_initcall(wrt300nv2_pci_init);
+--- /dev/null
++++ b/arch/arm/mach-ixp4xx/wrt300nv2-setup.c
+@@ -0,0 +1,108 @@
++/*
++ * arch/arm/mach-ixp4xx/wrt300nv2-setup.c
++ *
++ * Board setup for the Linksys WRT300N v2
++ *
++ * Copyright (C) 2007 Imre Kaloz <Kaloz@openwrt.org>
++ *
++ * based on coyote-setup.c:
++ *      Copyright (C) 2003-2005 MontaVista Software, Inc.
++ *
++ * Author: Imre Kaloz <Kaloz@openwrt.org>
++ */
++
++#include <linux/kernel.h>
++#include <linux/init.h>
++#include <linux/device.h>
++#include <linux/serial.h>
++#include <linux/tty.h>
++#include <linux/serial_8250.h>
++#include <linux/slab.h>
++
++#include <asm/types.h>
++#include <asm/setup.h>
++#include <asm/memory.h>
++#include <mach/hardware.h>
++#include <asm/irq.h>
++#include <asm/mach-types.h>
++#include <asm/mach/arch.h>
++#include <asm/mach/flash.h>
++
++static struct flash_platform_data wrt300nv2_flash_data = {
++      .map_name       = "cfi_probe",
++      .width          = 2,
++};
++
++static struct resource wrt300nv2_flash_resource = {
++      .flags          = IORESOURCE_MEM,
++};
++
++static struct platform_device wrt300nv2_flash = {
++      .name           = "IXP4XX-Flash",
++      .id             = 0,
++      .dev            = {
++              .platform_data = &wrt300nv2_flash_data,
++      },
++      .num_resources  = 1,
++      .resource       = &wrt300nv2_flash_resource,
++};
++
++static struct resource wrt300nv2_uart_resource = {
++      .start  = IXP4XX_UART2_BASE_PHYS,
++      .end    = IXP4XX_UART2_BASE_PHYS + 0x0fff,
++      .flags  = IORESOURCE_MEM,
++};
++
++static struct plat_serial8250_port wrt300nv2_uart_data[] = {
++      {
++              .mapbase        = IXP4XX_UART2_BASE_PHYS,
++              .membase        = (char *)IXP4XX_UART2_BASE_VIRT + REG_OFFSET,
++              .irq            = IRQ_IXP4XX_UART2,
++              .flags          = UPF_BOOT_AUTOCONF | UPF_SKIP_TEST,
++              .iotype         = UPIO_MEM,
++              .regshift       = 2,
++              .uartclk        = IXP4XX_UART_XTAL,
++      },
++      { },
++};
++
++static struct platform_device wrt300nv2_uart = {
++      .name           = "serial8250",
++      .id             = PLAT8250_DEV_PLATFORM,
++      .dev                    = {
++              .platform_data  = wrt300nv2_uart_data,
++      },
++      .num_resources  = 1,
++      .resource       = &wrt300nv2_uart_resource,
++};
++
++static struct platform_device *wrt300nv2_devices[] __initdata = {
++      &wrt300nv2_flash,
++      &wrt300nv2_uart
++};
++
++static void __init wrt300nv2_init(void)
++{
++      ixp4xx_sys_init();
++
++      wrt300nv2_flash_resource.start = IXP4XX_EXP_BUS_BASE(0);
++      wrt300nv2_flash_resource.end = IXP4XX_EXP_BUS_BASE(0) + SZ_32M - 1;
++
++      *IXP4XX_EXP_CS0 |= IXP4XX_FLASH_WRITABLE;
++      *IXP4XX_EXP_CS1 = *IXP4XX_EXP_CS0;
++
++      platform_add_devices(wrt300nv2_devices, ARRAY_SIZE(wrt300nv2_devices));
++}
++
++#ifdef CONFIG_MACH_WRT300NV2
++MACHINE_START(WRT300NV2, "Linksys WRT300N v2")
++      /* Maintainer: Imre Kaloz <kaloz@openwrt.org> */
++      .phys_io        = IXP4XX_PERIPHERAL_BASE_PHYS,
++      .io_pg_offst    = ((IXP4XX_PERIPHERAL_BASE_VIRT) >> 18) & 0xfffc,
++      .map_io         = ixp4xx_map_io,
++      .init_irq       = ixp4xx_init_irq,
++      .timer          = &ixp4xx_timer,
++      .boot_params    = 0x0100,
++      .init_machine   = wrt300nv2_init,
++MACHINE_END
++#endif
+--- a/arch/arm/mach-ixp4xx/include/mach/uncompress.h
++++ b/arch/arm/mach-ixp4xx/include/mach/uncompress.h
+@@ -42,7 +42,7 @@ static __inline__ void __arch_decomp_set
+        */
+       if (machine_is_adi_coyote() || machine_is_gtwx5715() ||
+                        machine_is_gateway7001() || machine_is_wg302v2() ||
+-                       machine_is_pronghorn() || machine_is_pronghorn_metro())
++                       machine_is_pronghorn() || machine_is_pronghorn_metro() || machine_is_wrt300nv2())
+               uart_base = (volatile u32*) IXP4XX_UART2_BASE_PHYS;
+       else
+               uart_base = (volatile u32*) IXP4XX_UART1_BASE_PHYS;

diff --git a/target/linux/ixp4xx/patches-2.6.32/131-wrt300nv2_mac_plat_info.patch b/target/linux/ixp4xx/patches-2.6.32/131-wrt300nv2_mac_plat_info.patch
new file mode 100644 (file)
index 0000000..3ab68c4
--- /dev/null
+++ b/target/linux/ixp4xx/patches-2.6.32/131-wrt300nv2_mac_plat_info.patch
@@ -0,0 +1,40 @@
+--- a/arch/arm/mach-ixp4xx/wrt300nv2-setup.c
++++ b/arch/arm/mach-ixp4xx/wrt300nv2-setup.c
+@@ -76,9 +76,36 @@ static struct platform_device wrt300nv2_
+       .resource       = &wrt300nv2_uart_resource,
+ };
+ 
++/* Built-in 10/100 Ethernet MAC interfaces */
++static struct eth_plat_info wrt300nv2_plat_eth[] = {
++      {
++              .phy            = -1,
++              .rxq            = 3,
++              .txreadyq       = 20,
++      }, {
++              .phy            = 1,
++              .rxq            = 4,
++              .txreadyq       = 21,
++      }
++};
++
++static struct platform_device wrt300nv2_eth[] = {
++      {
++              .name                   = "ixp4xx_eth",
++              .id                     = IXP4XX_ETH_NPEB,
++              .dev.platform_data      = wrt300nv2_plat_eth,
++      }, {
++              .name                   = "ixp4xx_eth",
++              .id                     = IXP4XX_ETH_NPEC,
++              .dev.platform_data      = wrt300nv2_plat_eth + 1,
++      }
++};
++
+ static struct platform_device *wrt300nv2_devices[] __initdata = {
+       &wrt300nv2_flash,
+-      &wrt300nv2_uart
++      &wrt300nv2_uart,
++      &wrt300nv2_eth[0],
++      &wrt300nv2_eth[1],
+ };
+ 
+ static void __init wrt300nv2_init(void)

diff --git a/target/linux/ixp4xx/patches-2.6.32/150-lanready_ap1000_support.patch b/target/linux/ixp4xx/patches-2.6.32/150-lanready_ap1000_support.patch
new file mode 100644 (file)
index 0000000..378786e
--- /dev/null
+++ b/target/linux/ixp4xx/patches-2.6.32/150-lanready_ap1000_support.patch
@@ -0,0 +1,200 @@
+--- /dev/null
++++ b/arch/arm/mach-ixp4xx/ap1000-setup.c
+@@ -0,0 +1,151 @@
++/*
++ * arch/arm/mach-ixp4xx/ap1000-setup.c
++ *
++ * Lanready AP-1000
++ *
++ * Copyright (C) 2007 Imre Kaloz <Kaloz@openwrt.org>
++ *
++ * based on ixdp425-setup.c:
++ *    Copyright (C) 2003-2005 MontaVista Software, Inc.
++ *
++ * Author: Imre Kaloz <Kaloz@openwrt.org>
++ */
++
++#include <linux/kernel.h>
++#include <linux/init.h>
++#include <linux/device.h>
++#include <linux/serial.h>
++#include <linux/tty.h>
++#include <linux/serial_8250.h>
++#include <linux/slab.h>
++
++#include <asm/types.h>
++#include <asm/setup.h>
++#include <asm/memory.h>
++#include <mach/hardware.h>
++#include <asm/mach-types.h>
++#include <asm/irq.h>
++#include <asm/mach/arch.h>
++#include <asm/mach/flash.h>
++
++static struct flash_platform_data ap1000_flash_data = {
++      .map_name       = "cfi_probe",
++      .width          = 2,
++};
++
++static struct resource ap1000_flash_resource = {
++      .flags          = IORESOURCE_MEM,
++};
++
++static struct platform_device ap1000_flash = {
++      .name           = "IXP4XX-Flash",
++      .id             = 0,
++      .dev            = {
++              .platform_data = &ap1000_flash_data,
++      },
++      .num_resources  = 1,
++      .resource       = &ap1000_flash_resource,
++};
++
++static struct resource ap1000_uart_resources[] = {
++      {
++              .start          = IXP4XX_UART1_BASE_PHYS,
++              .end            = IXP4XX_UART1_BASE_PHYS + 0x0fff,
++              .flags          = IORESOURCE_MEM
++      },
++      {
++              .start          = IXP4XX_UART2_BASE_PHYS,
++              .end            = IXP4XX_UART2_BASE_PHYS + 0x0fff,
++              .flags          = IORESOURCE_MEM
++      }
++};
++
++static struct plat_serial8250_port ap1000_uart_data[] = {
++      {
++              .mapbase        = IXP4XX_UART1_BASE_PHYS,
++              .membase        = (char *)IXP4XX_UART1_BASE_VIRT + REG_OFFSET,
++              .irq            = IRQ_IXP4XX_UART1,
++              .flags          = UPF_BOOT_AUTOCONF | UPF_SKIP_TEST,
++              .iotype         = UPIO_MEM,
++              .regshift       = 2,
++              .uartclk        = IXP4XX_UART_XTAL,
++      },
++      {
++              .mapbase        = IXP4XX_UART2_BASE_PHYS,
++              .membase        = (char *)IXP4XX_UART2_BASE_VIRT + REG_OFFSET,
++              .irq            = IRQ_IXP4XX_UART2,
++              .flags          = UPF_BOOT_AUTOCONF | UPF_SKIP_TEST,
++              .iotype         = UPIO_MEM,
++              .regshift       = 2,
++              .uartclk        = IXP4XX_UART_XTAL,
++      },
++      { },
++};
++
++static struct platform_device ap1000_uart = {
++      .name                   = "serial8250",
++      .id                     = PLAT8250_DEV_PLATFORM,
++      .dev.platform_data      = ap1000_uart_data,
++      .num_resources          = 2,
++      .resource               = ap1000_uart_resources
++};
++
++static struct platform_device *ap1000_devices[] __initdata = {
++      &ap1000_flash,
++      &ap1000_uart
++};
++
++static char ap1000_mem_fixup[] __initdata = "mem=64M ";
++
++static void __init ap1000_fixup(struct machine_desc *desc,
++              struct tag *tags, char **cmdline, struct meminfo *mi)
++
++{
++      struct tag *t = tags;
++      char *p = *cmdline;
++
++      /* Find the end of the tags table, taking note of any cmdline tag. */
++      for (; t->hdr.size; t = tag_next(t)) {
++              if (t->hdr.tag == ATAG_CMDLINE) {
++                      p = t->u.cmdline.cmdline;
++              }
++      }
++
++      /* Overwrite the end of the table with a new cmdline tag. */
++      t->hdr.tag = ATAG_CMDLINE;
++      t->hdr.size = (sizeof (struct tag_header) +
++              strlen(ap1000_mem_fixup) + strlen(p) + 1 + 4) >> 2;
++      strlcpy(t->u.cmdline.cmdline, ap1000_mem_fixup, COMMAND_LINE_SIZE);
++      strlcpy(t->u.cmdline.cmdline + strlen(ap1000_mem_fixup), p,
++              COMMAND_LINE_SIZE - strlen(ap1000_mem_fixup));
++
++      /* Terminate the table. */
++      t = tag_next(t);
++      t->hdr.tag = ATAG_NONE;
++      t->hdr.size = 0;
++}
++
++static void __init ap1000_init(void)
++{
++      ixp4xx_sys_init();
++
++      ap1000_flash_resource.start = IXP4XX_EXP_BUS_BASE(0);
++      ap1000_flash_resource.end =
++              IXP4XX_EXP_BUS_BASE(0) + ixp4xx_exp_bus_size - 1;
++
++      platform_add_devices(ap1000_devices, ARRAY_SIZE(ap1000_devices));
++}
++
++#ifdef CONFIG_MACH_AP1000
++MACHINE_START(AP1000, "Lanready AP-1000")
++      /* Maintainer: Imre Kaloz <Kaloz@openwrt.org> */
++      .phys_io        = IXP4XX_PERIPHERAL_BASE_PHYS,
++      .io_pg_offst    = ((IXP4XX_PERIPHERAL_BASE_VIRT) >> 18) & 0xfffc,
++      .fixup          = ap1000_fixup,
++      .map_io         = ixp4xx_map_io,
++      .init_irq       = ixp4xx_init_irq,
++      .timer          = &ixp4xx_timer,
++      .boot_params    = 0x0100,
++      .init_machine   = ap1000_init,
++MACHINE_END
++#endif
+--- a/arch/arm/mach-ixp4xx/ixdp425-pci.c
++++ b/arch/arm/mach-ixp4xx/ixdp425-pci.c
+@@ -67,7 +67,7 @@ int __init ixdp425_pci_init(void)
+ {
+       if (machine_is_ixdp425() || machine_is_ixcdp1100() ||
+                       machine_is_ixdp465() || machine_is_kixrp435() ||
+-                      machine_is_compex())
++                      machine_is_compex() || machine_is_ap1000())
+               pci_common_init(&ixdp425_pci);
+       return 0;
+ }
+--- a/arch/arm/mach-ixp4xx/Kconfig
++++ b/arch/arm/mach-ixp4xx/Kconfig
+@@ -105,6 +105,14 @@ config MACH_WRT300NV2
+         WRT300N v2 router. For more information on this
+         platform, see http://openwrt.org
+ 
++config MACH_AP1000
++      bool "Lanready AP-1000"
++      select PCI
++      help
++        Say 'Y' here if you want your kernel to support Lanready's
++        AP1000 board. For more information on this
++        platform, see http://openwrt.org
++
+ config ARCH_IXDP425
+       bool "IXDP425"
+       help
+--- a/arch/arm/mach-ixp4xx/Makefile
++++ b/arch/arm/mach-ixp4xx/Makefile
+@@ -21,6 +21,7 @@ obj-pci-$(CONFIG_MACH_PRONGHORN)     += pron
+ obj-pci-$(CONFIG_MACH_SIDEWINDER)     += sidewinder-pci.o
+ obj-pci-$(CONFIG_MACH_COMPEX)         += ixdp425-pci.o
+ obj-pci-$(CONFIG_MACH_WRT300NV2)              += wrt300nv2-pci.o
++obj-pci-$(CONFIG_MACH_AP1000)         += ixdp425-pci.o
+ 
+ obj-y += common.o
+ 
+@@ -41,6 +42,7 @@ obj-$(CONFIG_MACH_PRONGHORN) += pronghor
+ obj-$(CONFIG_MACH_SIDEWINDER) += sidewinder-setup.o
+ obj-$(CONFIG_MACH_COMPEX)     += compex-setup.o
+ obj-$(CONFIG_MACH_WRT300NV2)  += wrt300nv2-setup.o
++obj-$(CONFIG_MACH_AP1000)     += ap1000-setup.o
+ 
+ obj-$(CONFIG_PCI)             += $(obj-pci-$(CONFIG_PCI)) common-pci.o
+ obj-$(CONFIG_IXP4XX_QMGR)     += ixp4xx_qmgr.o

diff --git a/target/linux/ixp4xx/patches-2.6.32/151-lanready_ap1000_mac_plat_info.patch b/target/linux/ixp4xx/patches-2.6.32/151-lanready_ap1000_mac_plat_info.patch
new file mode 100644 (file)
index 0000000..a1214d5
--- /dev/null
+++ b/target/linux/ixp4xx/patches-2.6.32/151-lanready_ap1000_mac_plat_info.patch
@@ -0,0 +1,41 @@
+--- a/arch/arm/mach-ixp4xx/ap1000-setup.c
++++ b/arch/arm/mach-ixp4xx/ap1000-setup.c
+@@ -90,9 +90,37 @@ static struct platform_device ap1000_uar
+       .resource               = ap1000_uart_resources
+ };
+ 
++/* Built-in 10/100 Ethernet MAC interfaces */
++static struct eth_plat_info ap1000_plat_eth[] = {
++      {
++              .phy            = IXP4XX_ETH_PHY_MAX_ADDR,
++              .phy_mask       = 0x1e,
++              .rxq            = 3,
++              .txreadyq       = 20,
++      }, {
++              .phy            = 5,
++              .rxq            = 4,
++              .txreadyq       = 21,
++      }
++};
++
++static struct platform_device ap1000_eth[] = {
++      {
++              .name                   = "ixp4xx_eth",
++              .id                     = IXP4XX_ETH_NPEB,
++              .dev.platform_data      = ap1000_plat_eth,
++      }, {
++              .name                   = "ixp4xx_eth",
++              .id                     = IXP4XX_ETH_NPEC,
++              .dev.platform_data      = ap1000_plat_eth + 1,
++      }
++};
++
+ static struct platform_device *ap1000_devices[] __initdata = {
+       &ap1000_flash,
+-      &ap1000_uart
++      &ap1000_uart,
++      &ap1000_eth[0],
++      &ap1000_eth[1],
+ };
+ 
+ static char ap1000_mem_fixup[] __initdata = "mem=64M ";

diff --git a/target/linux/ixp4xx/patches-2.6.32/162-wg302v1_mem_fixup.patch b/target/linux/ixp4xx/patches-2.6.32/162-wg302v1_mem_fixup.patch
new file mode 100644 (file)
index 0000000..684db44
--- /dev/null
+++ b/target/linux/ixp4xx/patches-2.6.32/162-wg302v1_mem_fixup.patch
@@ -0,0 +1,47 @@
+--- a/arch/arm/mach-ixp4xx/wg302v1-setup.c
++++ b/arch/arm/mach-ixp4xx/wg302v1-setup.c
+@@ -115,6 +115,36 @@ static struct platform_device *wg302v1_d
+       &wg302v1_eth[0],
+ };
+ 
++static char wg302v1_mem_fixup[] __initdata = "mem=32M ";
++
++static void __init wg302v1_fixup(struct machine_desc *desc,
++              struct tag *tags, char **cmdline, struct meminfo *mi)
++
++{
++      struct tag *t = tags;
++      char *p = *cmdline;
++
++      /* Find the end of the tags table, taking note of any cmdline tag. */
++      for (; t->hdr.size; t = tag_next(t)) {
++              if (t->hdr.tag == ATAG_CMDLINE) {
++                      p = t->u.cmdline.cmdline;
++              }
++      }
++
++      /* Overwrite the end of the table with a new cmdline tag. */
++      t->hdr.tag = ATAG_CMDLINE;
++      t->hdr.size = (sizeof (struct tag_header) +
++              strlen(wg302v1_mem_fixup) + strlen(p) + 1 + 4) >> 2;
++      strlcpy(t->u.cmdline.cmdline, wg302v1_mem_fixup, COMMAND_LINE_SIZE);
++      strlcpy(t->u.cmdline.cmdline + strlen(wg302v1_mem_fixup), p,
++              COMMAND_LINE_SIZE - strlen(wg302v1_mem_fixup));
++
++      /* Terminate the table. */
++      t = tag_next(t);
++      t->hdr.tag = ATAG_NONE;
++      t->hdr.size = 0;
++}
++
+ static void __init wg302v1_init(void)
+ {
+       ixp4xx_sys_init();
+@@ -133,6 +163,7 @@ MACHINE_START(WG302V1, "Netgear WG302 v1
+       /* Maintainer: Imre Kaloz <kaloz@openwrt.org> */
+       .phys_io        = IXP4XX_PERIPHERAL_BASE_PHYS,
+       .io_pg_offst    = ((IXP4XX_PERIPHERAL_BASE_VIRT) >> 18) & 0xfffc,
++      .fixup          = wg302v1_fixup,
+       .map_io         = ixp4xx_map_io,
+       .init_irq       = ixp4xx_init_irq,
+       .timer          = &ixp4xx_timer,

diff --git a/target/linux/ixp4xx/patches-2.6.32/170-ixdpg425_mac_plat_info.patch b/target/linux/ixp4xx/patches-2.6.32/170-ixdpg425_mac_plat_info.patch
new file mode 100644 (file)
index 0000000..772b697
--- /dev/null
+++ b/target/linux/ixp4xx/patches-2.6.32/170-ixdpg425_mac_plat_info.patch
@@ -0,0 +1,41 @@
+--- a/arch/arm/mach-ixp4xx/coyote-setup.c
++++ b/arch/arm/mach-ixp4xx/coyote-setup.c
+@@ -73,9 +73,37 @@ static struct platform_device coyote_uar
+       .resource       = &coyote_uart_resource,
+ };
+ 
++/* Built-in 10/100 Ethernet MAC interfaces */
++static struct eth_plat_info ixdpg425_plat_eth[] = {
++        {
++                .phy            = 5,
++                .rxq            = 3,
++                .txreadyq       = 20,
++        }, {
++                .phy            = 4,
++                .rxq            = 4,
++                .txreadyq       = 21,
++        }
++};
++
++static struct platform_device ixdpg425_eth[] = {
++      {
++              .name                   = "ixp4xx_eth",
++              .id                     = IXP4XX_ETH_NPEB,
++              .dev.platform_data      = ixdpg425_plat_eth,
++      }, {
++              .name                   = "ixp4xx_eth",
++              .id                     = IXP4XX_ETH_NPEC,
++              .dev.platform_data      = ixdpg425_plat_eth + 1,
++      }
++};
++
++
+ static struct platform_device *coyote_devices[] __initdata = {
+       &coyote_flash,
+-      &coyote_uart
++      &coyote_uart,
++      &ixdpg425_eth[0],
++      &ixdpg425_eth[1],
+ };
+ 
+ static void __init coyote_init(void)

diff --git a/target/linux/ixp4xx/patches-2.6.32/180-tw5334_support.patch b/target/linux/ixp4xx/patches-2.6.32/180-tw5334_support.patch
new file mode 100644 (file)
index 0000000..f59792a
--- /dev/null
+++ b/target/linux/ixp4xx/patches-2.6.32/180-tw5334_support.patch
@@ -0,0 +1,284 @@
+--- a/arch/arm/mach-ixp4xx/Kconfig
++++ b/arch/arm/mach-ixp4xx/Kconfig
+@@ -164,6 +164,14 @@ config ARCH_PRPMC1100
+         PrPCM1100 Processor Mezanine Module. For more information on
+         this platform, see <file:Documentation/arm/IXP4xx>.
+ 
++config MACH_TW5334
++      bool "Titan Wireless TW-533-4"
++      select PCI
++      help
++        Say 'Y' here if you want your kernel to support the Titan
++        Wireless TW533-4. For more information on this platform,
++        see http://openwrt.org
++
+ config MACH_NAS100D
+       bool
+       prompt "NAS100D"
+--- a/arch/arm/mach-ixp4xx/Makefile
++++ b/arch/arm/mach-ixp4xx/Makefile
+@@ -22,6 +22,7 @@ obj-pci-$(CONFIG_MACH_SIDEWINDER)    += sid
+ obj-pci-$(CONFIG_MACH_COMPEX)         += ixdp425-pci.o
+ obj-pci-$(CONFIG_MACH_WRT300NV2)              += wrt300nv2-pci.o
+ obj-pci-$(CONFIG_MACH_AP1000)         += ixdp425-pci.o
++obj-pci-$(CONFIG_MACH_TW5334)         += tw5334-pci.o
+ 
+ obj-y += common.o
+ 
+@@ -43,6 +44,7 @@ obj-$(CONFIG_MACH_SIDEWINDER)        += sidewin
+ obj-$(CONFIG_MACH_COMPEX)     += compex-setup.o
+ obj-$(CONFIG_MACH_WRT300NV2)  += wrt300nv2-setup.o
+ obj-$(CONFIG_MACH_AP1000)     += ap1000-setup.o
++obj-$(CONFIG_MACH_TW5334)     += tw5334-setup.o
+ 
+ obj-$(CONFIG_PCI)             += $(obj-pci-$(CONFIG_PCI)) common-pci.o
+ obj-$(CONFIG_IXP4XX_QMGR)     += ixp4xx_qmgr.o
+--- /dev/null
++++ b/arch/arm/mach-ixp4xx/tw5334-setup.c
+@@ -0,0 +1,162 @@
++/*
++ * arch/arm/mach-ixp4xx/tw5334-setup.c
++ *
++ * Board setup for the Titan Wireless TW-533-4
++ *
++ * Copyright (C) 2008 Imre Kaloz <kaloz@openwrt.org>
++ *
++ * based on coyote-setup.c:
++ *      Copyright (C) 2003-2005 MontaVista Software, Inc.
++ *
++ * Author: Imre Kaloz <Kaloz@openwrt.org>
++ */
++
++#include <linux/if_ether.h>
++#include <linux/kernel.h>
++#include <linux/init.h>
++#include <linux/device.h>
++#include <linux/serial.h>
++#include <linux/tty.h>
++#include <linux/serial_8250.h>
++#include <linux/slab.h>
++
++#include <asm/types.h>
++#include <asm/setup.h>
++#include <asm/memory.h>
++#include <mach/hardware.h>
++#include <asm/irq.h>
++#include <asm/mach-types.h>
++#include <asm/mach/arch.h>
++#include <asm/mach/flash.h>
++
++static struct flash_platform_data tw5334_flash_data = {
++      .map_name       = "cfi_probe",
++      .width          = 2,
++};
++
++static struct resource tw5334_flash_resource = {
++      .flags          = IORESOURCE_MEM,
++};
++
++static struct platform_device tw5334_flash = {
++      .name           = "IXP4XX-Flash",
++      .id             = 0,
++      .dev            = {
++              .platform_data = &tw5334_flash_data,
++      },
++      .num_resources  = 1,
++      .resource       = &tw5334_flash_resource,
++};
++
++static struct resource tw5334_uart_resource = {
++      .start  = IXP4XX_UART2_BASE_PHYS,
++      .end    = IXP4XX_UART2_BASE_PHYS + 0x0fff,
++      .flags  = IORESOURCE_MEM,
++};
++
++static struct plat_serial8250_port tw5334_uart_data[] = {
++      {
++              .mapbase        = IXP4XX_UART2_BASE_PHYS,
++              .membase        = (char *)IXP4XX_UART2_BASE_VIRT + REG_OFFSET,
++              .irq            = IRQ_IXP4XX_UART2,
++              .flags          = UPF_BOOT_AUTOCONF | UPF_SKIP_TEST,
++              .iotype         = UPIO_MEM,
++              .regshift       = 2,
++              .uartclk        = IXP4XX_UART_XTAL,
++      },
++      { },
++};
++
++static struct platform_device tw5334_uart = {
++      .name           = "serial8250",
++      .id             = PLAT8250_DEV_PLATFORM,
++      .dev                    = {
++              .platform_data  = tw5334_uart_data,
++      },
++      .num_resources  = 1,
++      .resource       = &tw5334_uart_resource,
++};
++
++/* Built-in 10/100 Ethernet MAC interfaces */
++static struct eth_plat_info tw5334_plat_eth[] = {
++        {
++                .phy            = 0,
++                .rxq            = 3,
++              .txreadyq       = 20,
++        }, {
++                .phy            = 1,
++                .rxq            = 4,
++              .txreadyq       = 21,
++      }
++};
++
++static struct platform_device tw5334_eth[] = {
++        {
++                .name                   = "ixp4xx_eth",
++                .id                     = IXP4XX_ETH_NPEB,
++                .dev.platform_data      = tw5334_plat_eth,
++        }, {
++                .name                   = "ixp4xx_eth",
++                .id                     = IXP4XX_ETH_NPEC,
++                .dev.platform_data      = tw5334_plat_eth + 1,
++      }
++};
++
++static struct platform_device *tw5334_devices[] __initdata = {
++      &tw5334_flash,
++      &tw5334_uart,
++      &tw5334_eth[0],
++      &tw5334_eth[1],
++};
++
++static void __init tw5334_init(void)
++{
++      DECLARE_MAC_BUF(mac_buf);
++      uint8_t __iomem *f;
++      int i;
++
++      ixp4xx_sys_init();
++
++      tw5334_flash_resource.start = IXP4XX_EXP_BUS_BASE(0);
++      tw5334_flash_resource.end = IXP4XX_EXP_BUS_BASE(0) + SZ_32M - 1;
++
++      *IXP4XX_EXP_CS0 |= IXP4XX_FLASH_WRITABLE;
++      *IXP4XX_EXP_CS1 = *IXP4XX_EXP_CS0;
++
++      platform_add_devices(tw5334_devices, ARRAY_SIZE(tw5334_devices));
++
++      /*
++       * Map in a portion of the flash and read the MAC addresses.
++       * Since it is stored in BE in the flash itself, we need to
++       * byteswap it if we're in LE mode.
++       */
++      f = ioremap(IXP4XX_EXP_BUS_BASE(0), 0x1000000);
++      if (f) {
++              for (i = 0; i < 6; i++)
++#ifdef __ARMEB__
++              tw5334_plat_eth[0].hwaddr[i] = readb(f + 0xFC0422 + i);
++              tw5334_plat_eth[1].hwaddr[i] = readb(f + 0xFC043B + i);
++#else
++              tw5334_plat_eth[0].hwaddr[i] = readb(f + 0xFC0422 + (i^3));
++              tw5334_plat_eth[1].hwaddr[i] = readb(f + 0xFC043B + (i^3));
++#endif
++              iounmap(f);
++      }
++      printk(KERN_INFO "TW-533-4: Using MAC address %s for port 0\n",
++              print_mac(mac_buf, tw5334_plat_eth[0].hwaddr));
++      printk(KERN_INFO "TW-533-4: Using MAC address %s for port 1\n",
++              print_mac(mac_buf, tw5334_plat_eth[1].hwaddr));
++}
++
++#ifdef CONFIG_MACH_TW5334
++MACHINE_START(TW5334, "Titan Wireless TW-533-4")
++      /* Maintainer: Imre Kaloz <kaloz@openwrt.org> */
++      .phys_io        = IXP4XX_PERIPHERAL_BASE_PHYS,
++      .io_pg_offst    = ((IXP4XX_PERIPHERAL_BASE_VIRT) >> 18) & 0xfffc,
++      .map_io         = ixp4xx_map_io,
++      .init_irq       = ixp4xx_init_irq,
++      .timer          = &ixp4xx_timer,
++      .boot_params    = 0x0100,
++      .init_machine   = tw5334_init,
++MACHINE_END
++#endif
+--- /dev/null
++++ b/arch/arm/mach-ixp4xx/tw5334-pci.c
+@@ -0,0 +1,69 @@
++/*
++ * arch/arch/mach-ixp4xx/tw5334-pci.c
++ *
++ * PCI setup routines for the Titan Wireless TW-533-4
++ *
++ * Copyright (C) 2008 Imre Kaloz <kaloz@openwrt.org>
++ *
++ * based on coyote-pci.c:
++ *    Copyright (C) 2002 Jungo Software Technologies.
++ *    Copyright (C) 2003 MontaVista Softwrae, Inc.
++ *
++ * Maintainer: Imre Kaloz <kaloz@openwrt.org>
++ *
++ * 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 <linux/kernel.h>
++#include <linux/pci.h>
++#include <linux/init.h>
++#include <linux/irq.h>
++
++#include <asm/mach-types.h>
++#include <mach/hardware.h>
++
++#include <asm/mach/pci.h>
++
++void __init tw5334_pci_preinit(void)
++{
++      set_irq_type(IRQ_IXP4XX_GPIO6, IRQ_TYPE_LEVEL_LOW);
++      set_irq_type(IRQ_IXP4XX_GPIO2, IRQ_TYPE_LEVEL_LOW);
++      set_irq_type(IRQ_IXP4XX_GPIO1, IRQ_TYPE_LEVEL_LOW);
++      set_irq_type(IRQ_IXP4XX_GPIO0, IRQ_TYPE_LEVEL_LOW);
++
++      ixp4xx_pci_preinit();
++}
++
++static int __init tw5334_map_irq(struct pci_dev *dev, u8 slot, u8 pin)
++{
++      if (slot == 12)
++              return IRQ_IXP4XX_GPIO6;
++      else if (slot == 13)
++              return IRQ_IXP4XX_GPIO2;
++      else if (slot == 14)
++              return IRQ_IXP4XX_GPIO1;
++      else if (slot == 15)
++              return IRQ_IXP4XX_GPIO0;
++      else return -1;
++}
++
++struct hw_pci tw5334_pci __initdata = {
++      .nr_controllers = 1,
++      .preinit =        tw5334_pci_preinit,
++      .swizzle =        pci_std_swizzle,
++      .setup =          ixp4xx_setup,
++      .scan =           ixp4xx_scan_bus,
++      .map_irq =        tw5334_map_irq,
++};
++
++int __init tw5334_pci_init(void)
++{
++      if (machine_is_tw5334())
++              pci_common_init(&tw5334_pci);
++      return 0;
++}
++
++subsys_initcall(tw5334_pci_init);
+--- a/arch/arm/mach-ixp4xx/include/mach/uncompress.h
++++ b/arch/arm/mach-ixp4xx/include/mach/uncompress.h
+@@ -42,7 +42,8 @@ static __inline__ void __arch_decomp_set
+        */
+       if (machine_is_adi_coyote() || machine_is_gtwx5715() ||
+                        machine_is_gateway7001() || machine_is_wg302v2() ||
+-                       machine_is_pronghorn() || machine_is_pronghorn_metro() || machine_is_wrt300nv2())
++                       machine_is_pronghorn() || machine_is_pronghorn_metro() || machine_is_wrt300nv2() ||
++                       machine_is_tw5334())
+               uart_base = (volatile u32*) IXP4XX_UART2_BASE_PHYS;
+       else
+               uart_base = (volatile u32*) IXP4XX_UART1_BASE_PHYS;

diff --git a/target/linux/ixp4xx/patches-2.6.32/185-mi424wr_support.patch b/target/linux/ixp4xx/patches-2.6.32/185-mi424wr_support.patch
new file mode 100644 (file)
index 0000000..1b8ee89
--- /dev/null
+++ b/target/linux/ixp4xx/patches-2.6.32/185-mi424wr_support.patch
@@ -0,0 +1,465 @@
+--- /dev/null
++++ b/arch/arm/mach-ixp4xx/mi424wr-pci.c
+@@ -0,0 +1,71 @@
++/*
++ * arch/arm/mach-ixp4xx/mi424wr-pci.c
++ *
++ * Actiontec MI424WR board-level PCI initialization
++ *
++ * Copyright (C) 2008 Jose Vasconcellos
++ *
++ * Maintainer: Jose Vasconcellos <jvasco@verizon.net>
++ *
++ * 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 <linux/kernel.h>
++#include <linux/pci.h>
++#include <linux/init.h>
++#include <linux/irq.h>
++
++#include <asm/mach-types.h>
++#include <asm/mach/pci.h>
++
++/* PCI controller GPIO to IRQ pin mappings
++ * This information was obtained from Actiontec's GPL release.
++ *
++ *            INTA            INTB
++ * SLOT 13    8               6
++ * SLOT 14    7               8
++ * SLOT 15    6               7
++ */
++
++void __init mi424wr_pci_preinit(void)
++{
++      set_irq_type(IRQ_IXP4XX_GPIO6, IRQ_TYPE_LEVEL_LOW);
++      set_irq_type(IRQ_IXP4XX_GPIO7, IRQ_TYPE_LEVEL_LOW);
++      set_irq_type(IRQ_IXP4XX_GPIO8, IRQ_TYPE_LEVEL_LOW);
++
++      ixp4xx_pci_preinit();
++}
++
++static int __init mi424wr_map_irq(struct pci_dev *dev, u8 slot, u8 pin)
++{
++      if (slot == 13)
++              return IRQ_IXP4XX_GPIO8;
++      if (slot == 14)
++              return IRQ_IXP4XX_GPIO7;
++      if (slot == 15)
++              return IRQ_IXP4XX_GPIO6;
++
++      return -1;
++}
++
++struct hw_pci mi424wr_pci __initdata = {
++      .nr_controllers = 1,
++      .preinit        = mi424wr_pci_preinit,
++      .swizzle        = pci_std_swizzle,
++      .setup          = ixp4xx_setup,
++      .scan           = ixp4xx_scan_bus,
++      .map_irq        = mi424wr_map_irq,
++};
++
++int __init mi424wr_pci_init(void)
++{
++      if (machine_is_mi424wr())
++              pci_common_init(&mi424wr_pci);
++      return 0;
++}
++
++subsys_initcall(mi424wr_pci_init);
++
+--- /dev/null
++++ b/arch/arm/mach-ixp4xx/mi424wr-setup.c
+@@ -0,0 +1,344 @@
++/*
++ * arch/arm/mach-ixp4xx/mi424wr-setup.c
++ *
++ * Actiontec MI424-WR board setup
++ * Copyright (c) 2008 Jose Vasconcellos
++ *
++ * Based on Gemtek GTWX5715 by
++ * Copyright (C) 2004 George T. Joseph
++ * Derived from Coyote
++ *
++ * 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.
++ *
++ * This program is distributed in the hope that 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 <linux/init.h>
++#include <linux/device.h>
++#include <linux/serial.h>
++#include <linux/serial_8250.h>
++#include <linux/types.h>
++#include <linux/memory.h>
++#include <linux/leds.h>
++#include <linux/spi/spi_gpio_old.h>
++
++#include <asm/setup.h>
++#include <asm/irq.h>
++#include <asm/io.h>
++#include <asm/mach-types.h>
++#include <asm/mach/arch.h>
++#include <asm/mach/flash.h>
++
++/*
++ * GPIO 2,3,4 and 9 are hard wired to the Micrel/Kendin KS8995M Switch
++ * and operate as an SPI type interface.  The details of the interface
++ * are available on Kendin/Micrel's web site.
++ */
++
++#define MI424WR_KSSPI_SELECT          9
++#define MI424WR_KSSPI_TXD             4
++#define MI424WR_KSSPI_CLOCK           2
++#define MI424WR_KSSPI_RXD             3
++
++/*
++ * The "reset" button is wired to GPIO 10.
++ * The GPIO is brought "low" when the button is pushed.
++ */
++
++#define MI424WR_BUTTON_GPIO   10
++#define MI424WR_BUTTON_IRQ    IRQ_IXP4XX_GPIO10
++
++#define MI424WR_MOCA_WAN_LED  11
++
++/* Latch on CS1 - taken from Actiontec's 2.4 source code
++ * 
++ * default latch value
++ * 0  - power alarm led (red)           0 (off)
++ * 1  - power led (green)               0 (off)
++ * 2  - wireless led    (green)         1 (off)
++ * 3  - no internet led (red)           0 (off)
++ * 4  - internet ok led (green)         0 (off)
++ * 5  - moca LAN                        0 (off)
++ * 6  - WAN alarm led (red)           0 (off)
++ * 7  - PCI reset                       1 (not reset)
++ * 8  - IP phone 1 led (green)          1 (off)
++ * 9  - IP phone 2 led (green)          1 (off)
++ * 10 - VOIP ready led (green)          1 (off)
++ * 11 - PSTN relay 1 control            0 (PSTN)
++ * 12 - PSTN relay 1 control            0 (PSTN)
++ * 13 - N/A
++ * 14 - N/A
++ * 15 - N/A
++ */
++
++#define MI424WR_LATCH_MASK              0x04
++#define MI424WR_LATCH_DEFAULT           0x1f86
++
++#define MI424WR_LATCH_ALARM_LED         0x00
++#define MI424WR_LATCH_POWER_LED         0x01
++#define MI424WR_LATCH_WIRELESS_LED      0x02
++#define MI424WR_LATCH_INET_DOWN_LED     0x03
++#define MI424WR_LATCH_INET_OK_LED       0x04
++#define MI424WR_LATCH_MOCA_LAN_LED      0x05
++#define MI424WR_LATCH_WAN_ALARM_LED     0x06
++#define MI424WR_LATCH_PCI_RESET         0x07
++#define MI424WR_LATCH_PHONE1_LED        0x08
++#define MI424WR_LATCH_PHONE2_LED        0x09
++#define MI424WR_LATCH_VOIP_LED          0x10
++#define MI424WR_LATCH_PSTN_RELAY1       0x11
++#define MI424WR_LATCH_PSTN_RELAY2       0x12
++
++/* initialize CS1 to default timings, Intel style, 16-bit bus */
++#define MI424WR_CS1_CONFIG    0x80000002
++
++/* Define both UARTs but they are not easily accessible.
++ */
++
++static struct resource mi424wr_uart_resources[] = {
++      {
++              .start  = IXP4XX_UART1_BASE_PHYS,
++              .end    = IXP4XX_UART1_BASE_PHYS + 0x0fff,
++              .flags  = IORESOURCE_MEM,
++      },
++      {
++              .start  = IXP4XX_UART2_BASE_PHYS,
++              .end    = IXP4XX_UART2_BASE_PHYS + 0x0fff,
++              .flags  = IORESOURCE_MEM,
++      }
++};
++
++
++static struct plat_serial8250_port mi424wr_uart_platform_data[] = {
++      {
++              .mapbase        = IXP4XX_UART1_BASE_PHYS,
++              .membase        = (char *)IXP4XX_UART1_BASE_VIRT + REG_OFFSET,
++              .irq            = IRQ_IXP4XX_UART1,
++              .flags          = UPF_BOOT_AUTOCONF | UPF_SKIP_TEST,
++              .iotype         = UPIO_MEM,
++              .regshift       = 2,
++              .uartclk        = IXP4XX_UART_XTAL,
++      },
++      {
++              .mapbase        = IXP4XX_UART2_BASE_PHYS,
++              .membase        = (char *)IXP4XX_UART2_BASE_VIRT + REG_OFFSET,
++              .irq            = IRQ_IXP4XX_UART2,
++              .flags          = UPF_BOOT_AUTOCONF | UPF_SKIP_TEST,
++              .iotype         = UPIO_MEM,
++              .regshift       = 2,
++              .uartclk        = IXP4XX_UART_XTAL,
++      },
++      { },
++};
++
++static struct platform_device mi424wr_uart_device = {
++      .name           = "serial8250",
++      .id             = PLAT8250_DEV_PLATFORM,
++      .dev.platform_data      = mi424wr_uart_platform_data,
++      .num_resources  = ARRAY_SIZE(mi424wr_uart_resources),
++      .resource       = mi424wr_uart_resources,
++};
++
++static struct flash_platform_data mi424wr_flash_data = {
++      .map_name       = "cfi_probe",
++      .width          = 2,
++};
++
++static struct resource mi424wr_flash_resource = {
++      .flags          = IORESOURCE_MEM,
++};
++
++static struct platform_device mi424wr_flash = {
++      .name           = "IXP4XX-Flash",
++      .id             = 0,
++      .dev.platform_data = &mi424wr_flash_data,
++      .num_resources  = 1,
++      .resource       = &mi424wr_flash_resource,
++};
++
++static int mi424wr_spi_boardinfo_setup(struct spi_board_info *bi,
++              struct spi_master *master, void *data)
++{
++
++      strlcpy(bi->modalias, "spi-ks8995", sizeof(bi->modalias));
++
++      bi->max_speed_hz = 5000000 /* Hz */;
++      bi->bus_num = master->bus_num;
++      bi->mode = SPI_MODE_0;
++
++      return 0;
++}
++
++static struct spi_gpio_platform_data mi424wr_spi_bus_data = {
++      .pin_cs                 = MI424WR_KSSPI_SELECT,
++      .pin_clk                = MI424WR_KSSPI_CLOCK,
++      .pin_miso               = MI424WR_KSSPI_RXD,
++      .pin_mosi               = MI424WR_KSSPI_TXD,
++      .cs_activelow           = 1,
++      .no_spi_delay           = 1,
++      .boardinfo_setup        = mi424wr_spi_boardinfo_setup,
++};
++
++static struct gpio_led mi424wr_gpio_led[] = {
++      {
++              .name           = "moca-wan",   /* green led */
++              .gpio           = MI424WR_MOCA_WAN_LED,
++              .active_low     = 0,
++      }
++};
++
++static struct gpio_led_platform_data mi424wr_gpio_leds_data = {
++      .num_leds       = 1,
++      .leds           = mi424wr_gpio_led,
++};
++
++static struct platform_device mi424wr_gpio_leds = {
++      .name           = "leds-gpio",
++      .id             = -1,
++      .dev.platform_data = &mi424wr_gpio_leds_data,
++};
++
++static uint16_t latch_value = MI424WR_LATCH_DEFAULT;
++static uint16_t __iomem *iobase;
++
++static void mi424wr_latch_set_led(u8 bit, enum led_brightness value)
++{
++
++      if (((MI424WR_LATCH_MASK >> bit) & 1) ^ (value == LED_OFF))
++              latch_value &= ~(0x1 << bit);
++      else
++              latch_value |= (0x1 << bit);
++
++      __raw_writew(latch_value, iobase);
++
++}
++
++static struct latch_led mi424wr_latch_led[] = {
++      {
++              .name   = "power-alarm",
++              .bit    = MI424WR_LATCH_ALARM_LED,
++      },
++      {
++              .name   = "power-ok",
++              .bit    = MI424WR_LATCH_POWER_LED,
++      },
++      {
++              .name   = "wireless",   /* green led */
++              .bit    = MI424WR_LATCH_WIRELESS_LED,
++      },
++      {
++              .name   = "inet-down",  /* red led */
++              .bit    = MI424WR_LATCH_INET_DOWN_LED,
++      },
++      {
++              .name   = "inet-up",    /* green led */
++              .bit    = MI424WR_LATCH_INET_OK_LED,
++      },
++      {
++              .name   = "moca-lan",   /* green led */
++              .bit    = MI424WR_LATCH_MOCA_LAN_LED,
++      },
++      {
++              .name   = "wan-alarm",  /* red led */
++              .bit    = MI424WR_LATCH_WAN_ALARM_LED,
++      }
++};
++
++static struct latch_led_platform_data mi424wr_latch_leds_data = {
++      .num_leds       = ARRAY_SIZE(mi424wr_latch_led),
++      .mem            = 0x51000000,
++      .leds           = mi424wr_latch_led,
++      .set_led        = mi424wr_latch_set_led,
++};
++
++static struct platform_device mi424wr_latch_leds = {
++      .name           = "leds-latch",
++      .id             = -1,
++      .dev.platform_data = &mi424wr_latch_leds_data,
++};
++
++static struct platform_device mi424wr_spi_bus = {
++      .name           = "spi-gpio",
++      .id             = 0,
++      .dev.platform_data = &mi424wr_spi_bus_data,
++};
++
++static struct eth_plat_info mi424wr_npeb_data = {
++      .phy            = 17,   /* KS8721 */
++      .rxq            = 3,
++      .txreadyq       = 20,
++};
++
++static struct eth_plat_info mi424wr_npec_data = {
++      .phy            = IXP4XX_ETH_PHY_MAX_ADDR,
++      .phy_mask       = 0x1e, /* ports 1-4 of the KS8995 switch */
++      .rxq            = 4,
++      .txreadyq       = 21,
++};
++
++static struct platform_device mi424wr_npe_devices[] = {
++      {
++              .name                   = "ixp4xx_eth",
++              .id                     = IXP4XX_ETH_NPEC,
++              .dev.platform_data      = &mi424wr_npec_data,
++      }, {
++              .name                   = "ixp4xx_eth",
++              .id                     = IXP4XX_ETH_NPEB,
++              .dev.platform_data      = &mi424wr_npeb_data,
++      }
++};
++
++static struct platform_device *mi424wr_devices[] __initdata = {
++      &mi424wr_uart_device,
++      &mi424wr_flash,
++      &mi424wr_gpio_leds,
++      &mi424wr_latch_leds,
++      &mi424wr_spi_bus,
++      &mi424wr_npe_devices[0],
++      &mi424wr_npe_devices[1],
++};
++
++static void __init mi424wr_init(void)
++{
++      ixp4xx_sys_init();
++
++      mi424wr_flash_resource.start = IXP4XX_EXP_BUS_BASE(0);
++      mi424wr_flash_resource.end = IXP4XX_EXP_BUS_BASE(0) + SZ_8M - 1;
++
++      *IXP4XX_EXP_CS0 |= IXP4XX_FLASH_WRITABLE;
++      *IXP4XX_EXP_CS1 = MI424WR_CS1_CONFIG;
++
++      /* configure button as input
++       */
++      gpio_line_config(MI424WR_BUTTON_GPIO, IXP4XX_GPIO_IN);
++
++      /* Initialize LEDs and enables PCI bus.
++       */
++      iobase = ioremap_nocache(IXP4XX_EXP_BUS_BASE(1), 0x1000);
++      __raw_writew(latch_value, iobase);
++
++      platform_add_devices(mi424wr_devices, ARRAY_SIZE(mi424wr_devices));
++}
++
++
++MACHINE_START(MI424WR, "Actiontec MI424WR")
++      /* Maintainer: Jose Vasconcellos */
++      .phys_io        = IXP4XX_UART2_BASE_PHYS,
++      .io_pg_offst    = ((IXP4XX_UART2_BASE_VIRT) >> 18) & 0xfffc,
++      .map_io         = ixp4xx_map_io,
++      .init_irq       = ixp4xx_init_irq,
++      .timer          = &ixp4xx_timer,
++      .boot_params    = 0x0100,
++      .init_machine   = mi424wr_init,
++MACHINE_END
++
+--- a/arch/arm/mach-ixp4xx/Makefile
++++ b/arch/arm/mach-ixp4xx/Makefile
+@@ -23,6 +23,7 @@ obj-pci-$(CONFIG_MACH_COMPEX)                += ixdp42
+ obj-pci-$(CONFIG_MACH_WRT300NV2)              += wrt300nv2-pci.o
+ obj-pci-$(CONFIG_MACH_AP1000)         += ixdp425-pci.o
+ obj-pci-$(CONFIG_MACH_TW5334)         += tw5334-pci.o
++obj-pci-$(CONFIG_MACH_MI424WR)                += mi424wr-pci.o
+ 
+ obj-y += common.o
+ 
+@@ -45,6 +46,7 @@ obj-$(CONFIG_MACH_COMPEX)    += compex-setu
+ obj-$(CONFIG_MACH_WRT300NV2)  += wrt300nv2-setup.o
+ obj-$(CONFIG_MACH_AP1000)     += ap1000-setup.o
+ obj-$(CONFIG_MACH_TW5334)     += tw5334-setup.o
++obj-$(CONFIG_MACH_MI424WR)    += mi424wr-setup.o
+ 
+ obj-$(CONFIG_PCI)             += $(obj-pci-$(CONFIG_PCI)) common-pci.o
+ obj-$(CONFIG_IXP4XX_QMGR)     += ixp4xx_qmgr.o
+--- a/arch/arm/mach-ixp4xx/Kconfig
++++ b/arch/arm/mach-ixp4xx/Kconfig
+@@ -235,6 +235,13 @@ config MACH_GTWX5715
+               "High Speed" UART is n/c (as far as I can tell)
+               20 Pin ARM/Xscale JTAG interface on J2
+ 
++config MACH_MI424WR
++      bool "Actiontec MI424WR"
++      depends on ARCH_IXP4XX
++      select PCI
++      help
++              Add support for the Actiontec MI424-WR.
++
+ comment "IXP4xx Options"
+ 
+ config IXP4XX_INDIRECT_PCI
+--- a/arch/arm/configs/ixp4xx_defconfig
++++ b/arch/arm/configs/ixp4xx_defconfig
+@@ -172,6 +172,7 @@ CONFIG_MACH_FSG=y
+ CONFIG_CPU_IXP46X=y
+ CONFIG_CPU_IXP43X=y
+ CONFIG_MACH_GTWX5715=y
++CONFIG_MACH_MI424WR=y
+ 
+ #
+ # IXP4xx Options

diff --git a/target/linux/ixp4xx/patches-2.6.32/190-cambria_support.patch b/target/linux/ixp4xx/patches-2.6.32/190-cambria_support.patch
new file mode 100644 (file)
index 0000000..c3791c6
--- /dev/null
+++ b/target/linux/ixp4xx/patches-2.6.32/190-cambria_support.patch
@@ -0,0 +1,553 @@
+--- /dev/null
++++ b/arch/arm/mach-ixp4xx/cambria-pci.c
+@@ -0,0 +1,74 @@
++/*
++ * arch/arch/mach-ixp4xx/cambria-pci.c
++ *
++ * PCI setup routines for Gateworks Cambria series
++ *
++ * Copyright (C) 2008 Imre Kaloz <kaloz@openwrt.org>
++ *
++ * based on coyote-pci.c:
++ *    Copyright (C) 2002 Jungo Software Technologies.
++ *    Copyright (C) 2003 MontaVista Softwrae, Inc.
++ *
++ * Maintainer: Imre Kaloz <kaloz@openwrt.org>
++ *
++ * 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 <linux/kernel.h>
++#include <linux/pci.h>
++#include <linux/init.h>
++#include <linux/irq.h>
++
++#include <asm/mach-types.h>
++#include <mach/hardware.h>
++#include <asm/irq.h>
++
++#include <asm/mach/pci.h>
++
++extern void ixp4xx_pci_preinit(void);
++extern int ixp4xx_setup(int nr, struct pci_sys_data *sys);
++extern struct pci_bus *ixp4xx_scan_bus(int nr, struct pci_sys_data *sys);
++
++void __init cambria_pci_preinit(void)
++{
++      set_irq_type(IRQ_IXP4XX_GPIO11, IRQ_TYPE_LEVEL_LOW);
++      set_irq_type(IRQ_IXP4XX_GPIO10, IRQ_TYPE_LEVEL_LOW);
++      set_irq_type(IRQ_IXP4XX_GPIO9, IRQ_TYPE_LEVEL_LOW);
++      set_irq_type(IRQ_IXP4XX_GPIO8, IRQ_TYPE_LEVEL_LOW);
++
++      ixp4xx_pci_preinit();
++}
++
++static int __init cambria_map_irq(struct pci_dev *dev, u8 slot, u8 pin)
++{
++      if (slot == 1)
++              return IRQ_IXP4XX_GPIO11;
++      else if (slot == 2)
++              return IRQ_IXP4XX_GPIO10;
++      else if (slot == 3)
++              return IRQ_IXP4XX_GPIO9;
++      else if (slot == 4)
++              return IRQ_IXP4XX_GPIO8;
++      else return -1;
++}
++
++struct hw_pci cambria_pci __initdata = {
++      .nr_controllers = 1,
++      .preinit =        cambria_pci_preinit,
++      .swizzle =        pci_std_swizzle,
++      .setup =          ixp4xx_setup,
++      .scan =           ixp4xx_scan_bus,
++      .map_irq =        cambria_map_irq,
++};
++
++int __init cambria_pci_init(void)
++{
++      if (machine_is_cambria())
++              pci_common_init(&cambria_pci);
++      return 0;
++}
++
++subsys_initcall(cambria_pci_init);
+--- /dev/null
++++ b/arch/arm/mach-ixp4xx/cambria-setup.c
+@@ -0,0 +1,429 @@
++/*
++ * arch/arm/mach-ixp4xx/cambria-setup.c
++ *
++ * Board setup for the Gateworks Cambria series
++ *
++ * Copyright (C) 2008 Imre Kaloz <kaloz@openwrt.org>
++ *
++ * based on coyote-setup.c:
++ *      Copyright (C) 2003-2005 MontaVista Software, Inc.
++ *
++ * Author: Imre Kaloz <kaloz@openwrt.org>
++ */
++
++#include <linux/device.h>
++#include <linux/i2c.h>
++#include <linux/i2c-gpio.h>
++#include <linux/i2c/at24.h>
++#include <linux/if_ether.h>
++#include <linux/init.h>
++#include <linux/kernel.h>
++#include <linux/leds.h>
++#include <linux/memory.h>
++#include <linux/netdevice.h>
++#include <linux/serial.h>
++#include <linux/serial_8250.h>
++#include <linux/slab.h>
++#include <linux/socket.h>
++#include <linux/types.h>
++#include <linux/tty.h>
++
++#include <mach/hardware.h>
++#include <asm/irq.h>
++#include <asm/mach-types.h>
++#include <asm/mach/arch.h>
++#include <asm/mach/flash.h>
++#include <asm/setup.h>
++
++struct cambria_board_info {
++      unsigned char   *model;
++      void            (*setup)(void);
++};
++
++static struct cambria_board_info *cambria_info __initdata;
++
++static struct flash_platform_data cambria_flash_data = {
++      .map_name       = "cfi_probe",
++      .width          = 2,
++};
++
++static struct resource cambria_flash_resource = {
++      .flags          = IORESOURCE_MEM,
++};
++
++static struct platform_device cambria_flash = {
++      .name           = "IXP4XX-Flash",
++      .id             = 0,
++      .dev            = {
++              .platform_data = &cambria_flash_data,
++      },
++      .num_resources  = 1,
++      .resource       = &cambria_flash_resource,
++};
++
++static struct i2c_gpio_platform_data cambria_i2c_gpio_data = {
++      .sda_pin        = 7,
++      .scl_pin        = 6,
++};
++
++static struct platform_device cambria_i2c_gpio = {
++      .name           = "i2c-gpio",
++      .id             = 0,
++      .dev = {
++              .platform_data  = &cambria_i2c_gpio_data,
++      },
++};
++
++static struct eth_plat_info cambria_npec_data = {
++      .phy            = 1,
++      .rxq            = 4,
++      .txreadyq       = 21,
++};
++
++static struct eth_plat_info cambria_npea_data = {
++      .phy            = 2,
++      .rxq            = 2,
++      .txreadyq       = 19,
++};
++
++static struct platform_device cambria_npec_device = {
++      .name                   = "ixp4xx_eth",
++      .id                     = IXP4XX_ETH_NPEC,
++      .dev.platform_data      = &cambria_npec_data,
++};
++
++static struct platform_device cambria_npea_device = {
++      .name                   = "ixp4xx_eth",
++      .id                     = IXP4XX_ETH_NPEA,
++      .dev.platform_data      = &cambria_npea_data,
++};
++
++static struct resource cambria_uart_resource = {
++      .start  = IXP4XX_UART1_BASE_PHYS,
++      .end    = IXP4XX_UART1_BASE_PHYS + 0x0fff,
++      .flags  = IORESOURCE_MEM,
++};
++
++static struct plat_serial8250_port cambria_uart_data[] = {
++      {
++              .mapbase        = IXP4XX_UART1_BASE_PHYS,
++              .membase        = (char *)IXP4XX_UART1_BASE_VIRT + REG_OFFSET,
++              .irq            = IRQ_IXP4XX_UART1,
++              .flags          = UPF_BOOT_AUTOCONF | UPF_SKIP_TEST,
++              .iotype         = UPIO_MEM,
++              .regshift       = 2,
++              .uartclk        = IXP4XX_UART_XTAL,
++      },
++      { },
++};
++
++static struct platform_device cambria_uart = {
++      .name           = "serial8250",
++      .id             = PLAT8250_DEV_PLATFORM,
++      .dev = {
++              .platform_data  = cambria_uart_data,
++      },
++      .num_resources  = 1,
++      .resource       = &cambria_uart_resource,
++};
++
++static struct resource cambria_pata_resources[] = {
++      {
++              .flags  = IORESOURCE_MEM
++      },
++      {
++              .flags  = IORESOURCE_MEM,
++      },
++      {
++              .name   = "intrq",
++              .start  = IRQ_IXP4XX_GPIO12,
++              .end    = IRQ_IXP4XX_GPIO12,
++              .flags  = IORESOURCE_IRQ,
++      },
++};
++
++static struct ixp4xx_pata_data cambria_pata_data = {
++      .cs0_bits       = 0xbfff3c03,
++      .cs1_bits       = 0xbfff3c03,
++};
++
++static struct platform_device cambria_pata = {
++      .name                   = "pata_ixp4xx_cf",
++      .id                     = 0,
++      .dev.platform_data      = &cambria_pata_data,
++      .num_resources          = ARRAY_SIZE(cambria_pata_resources),
++      .resource               = cambria_pata_resources,
++};
++
++static struct gpio_led cambria_gpio_leds[] = {
++      {
++              .name           = "user",  /* green led */
++              .gpio           = 5,
++              .active_low     = 1,
++      }
++};
++
++static struct gpio_led_platform_data cambria_gpio_leds_data = {
++      .num_leds       = 1,
++      .leds           = cambria_gpio_leds,
++};
++
++static struct platform_device cambria_gpio_leds_device = {
++      .name           = "leds-gpio",
++      .id             = -1,
++      .dev.platform_data = &cambria_gpio_leds_data,
++};
++
++static struct latch_led cambria_latch_leds[] = {
++      {
++              .name   = "ledA",  /* green led */
++              .bit    = 0,
++      },
++      {
++              .name   = "ledB",  /* green led */
++              .bit    = 1,
++      },
++      {
++              .name   = "ledC",  /* green led */
++              .bit    = 2,
++      },
++      {
++              .name   = "ledD",  /* green led */
++              .bit    = 3,
++      },
++      {
++              .name   = "ledE",  /* green led */
++              .bit    = 4,
++      },
++      {
++              .name   = "ledF",  /* green led */
++              .bit    = 5,
++      },
++      {
++              .name   = "ledG",  /* green led */
++              .bit    = 6,
++      },
++      {
++              .name   = "ledH",  /* green led */
++              .bit    = 7,
++      }
++};
++
++static struct latch_led_platform_data cambria_latch_leds_data = {
++      .num_leds       = 8,
++      .leds           = cambria_latch_leds,
++      .mem            = 0x53F40000,
++};
++
++static struct platform_device cambria_latch_leds_device = {
++      .name           = "leds-latch",
++      .id             = -1,
++      .dev.platform_data = &cambria_latch_leds_data,
++};
++
++static struct resource cambria_usb0_resources[] = {
++      {
++              .start  = 0xCD000000,
++              .end    = 0xCD000300,
++              .flags  = IORESOURCE_MEM,
++      },
++      {
++              .start  = 32,
++              .flags  = IORESOURCE_IRQ,
++      },
++};
++
++static struct resource cambria_usb1_resources[] = {
++      {
++              .start  = 0xCE000000,
++              .end    = 0xCE000300,
++              .flags  = IORESOURCE_MEM,
++      },
++      {
++              .start  = 33,
++              .flags  = IORESOURCE_IRQ,
++      },
++};
++
++static u64 ehci_dma_mask = ~(u32)0;
++
++static struct platform_device cambria_usb0_device =  {
++      .name           = "ixp4xx-ehci",
++      .id             = 0,
++      .resource       = cambria_usb0_resources,
++      .num_resources  = ARRAY_SIZE(cambria_usb0_resources),
++      .dev = {
++              .dma_mask               = &ehci_dma_mask,
++              .coherent_dma_mask      = 0xffffffff,
++      },
++};
++
++static struct platform_device cambria_usb1_device = {
++      .name           = "ixp4xx-ehci",
++      .id             = 1,
++      .resource       = cambria_usb1_resources,
++      .num_resources  = ARRAY_SIZE(cambria_usb1_resources),
++      .dev = {
++              .dma_mask               = &ehci_dma_mask,
++              .coherent_dma_mask      = 0xffffffff,
++      },
++};
++
++static struct platform_device *cambria_devices[] __initdata = {
++      &cambria_i2c_gpio,
++      &cambria_flash,
++      &cambria_uart,
++};
++
++static void __init cambria_gw23xx_setup(void)
++{
++      platform_device_register(&cambria_npec_device);
++      platform_device_register(&cambria_npea_device);
++}
++
++static void __init cambria_gw2350_setup(void)
++{
++      platform_device_register(&cambria_npec_device);
++      platform_device_register(&cambria_npea_device);
++
++      platform_device_register(&cambria_usb0_device);
++      platform_device_register(&cambria_usb1_device);
++
++      platform_device_register(&cambria_gpio_leds_device);
++}
++
++static void __init cambria_gw2358_setup(void)
++{
++      platform_device_register(&cambria_npec_device);
++      platform_device_register(&cambria_npea_device);
++
++      platform_device_register(&cambria_usb0_device);
++      platform_device_register(&cambria_usb1_device);
++
++      platform_device_register(&cambria_pata);
++
++      platform_device_register(&cambria_latch_leds_device);
++}
++
++static struct cambria_board_info cambria_boards[] __initdata = {
++      {
++              .model  = "GW2350",
++              .setup  = cambria_gw2350_setup,
++      }, {
++              .model  = "GW2358",
++              .setup  = cambria_gw2358_setup,
++      }
++};
++
++static struct cambria_board_info * __init cambria_find_board_info(char *model)
++{
++      int i;
++
++      for (i = 0; i < ARRAY_SIZE(cambria_boards); i++) {
++              struct cambria_board_info *info = &cambria_boards[i];
++              if (strcmp(info->model, model) == 0)
++                      return info;
++      }
++
++      return NULL;
++}
++
++static struct memory_accessor *at24_mem_acc;
++
++static int at24_setup(struct memory_accessor *mem_acc, void *context)
++{
++      char mac_addr[ETH_ALEN];
++      char model[6];
++
++      at24_mem_acc = mem_acc;
++
++      /* Read MAC addresses */
++      if (at24_mem_acc->read(at24_mem_acc, mac_addr, 0x0, 6) == 6) {
++              memcpy(&cambria_npec_data.hwaddr, mac_addr, ETH_ALEN);
++      }
++      if (at24_mem_acc->read(at24_mem_acc, mac_addr, 0x6, 6) == 6) {
++              memcpy(&cambria_npea_data.hwaddr, mac_addr, ETH_ALEN);
++      }
++
++      /* Read the first 6 bytes of the model number */
++      if (at24_mem_acc->read(at24_mem_acc, model, 0x20, 6) == 6) {
++              cambria_info = cambria_find_board_info(model);
++      }
++
++      return 0;
++}
++
++static struct at24_platform_data cambria_eeprom_info = {
++      .byte_len       = 1024,
++      .page_size      = 16,
++      .flags          = AT24_FLAG_READONLY,
++      .setup          = at24_setup,
++};
++
++static struct i2c_board_info __initdata cambria_i2c_board_info[] = {
++      {
++              I2C_BOARD_INFO("ds1672", 0x68),
++      },
++      {
++              I2C_BOARD_INFO("ad7418", 0x28),
++      },
++      {
++              I2C_BOARD_INFO("24c08", 0x51),
++              .platform_data  = &cambria_eeprom_info
++      },
++};
++
++static void __init cambria_init(void)
++{
++      ixp4xx_sys_init();
++
++      cambria_flash_resource.start = IXP4XX_EXP_BUS_BASE(0);
++      cambria_flash_resource.end = IXP4XX_EXP_BUS_BASE(0) + SZ_32M - 1;
++
++      *IXP4XX_EXP_CS0 |= IXP4XX_FLASH_WRITABLE;
++      *IXP4XX_EXP_CS1 = *IXP4XX_EXP_CS0;
++
++      platform_add_devices(cambria_devices, ARRAY_SIZE(cambria_devices));
++
++      cambria_pata_resources[0].start = 0x53e00000;
++      cambria_pata_resources[0].end = 0x53e3ffff;
++
++      cambria_pata_resources[1].start = 0x53e40000;
++      cambria_pata_resources[1].end = 0x53e7ffff;
++
++      cambria_pata_data.cs0_cfg = IXP4XX_EXP_CS3;
++      cambria_pata_data.cs1_cfg = IXP4XX_EXP_CS3;
++
++      i2c_register_board_info(0, cambria_i2c_board_info,
++                              ARRAY_SIZE(cambria_i2c_board_info));
++}
++
++static int __init cambria_model_setup(void)
++{
++      if (!machine_is_cambria())
++              return 0;
++
++      if (cambria_info) {
++              printk(KERN_DEBUG "Running on Gateworks Cambria %s\n",
++                              cambria_info->model);
++              cambria_info->setup();
++      } else {
++              printk(KERN_INFO "Unknown/missing Cambria model number"
++                              " -- defaults will be used\n");
++              cambria_gw23xx_setup();
++      }
++
++      return 0;
++}
++late_initcall(cambria_model_setup);
++
++MACHINE_START(CAMBRIA, "Gateworks Cambria series")
++      /* Maintainer: Imre Kaloz <kaloz@openwrt.org> */
++      .phys_io        = IXP4XX_PERIPHERAL_BASE_PHYS,
++      .io_pg_offst    = ((IXP4XX_PERIPHERAL_BASE_VIRT) >> 18) & 0xfffc,
++      .map_io         = ixp4xx_map_io,
++      .init_irq       = ixp4xx_init_irq,
++      .timer          = &ixp4xx_timer,
++      .boot_params    = 0x0100,
++      .init_machine   = cambria_init,
++MACHINE_END
+--- a/arch/arm/mach-ixp4xx/Kconfig
++++ b/arch/arm/mach-ixp4xx/Kconfig
+@@ -25,6 +25,14 @@ config MACH_AVILA
+         Avila Network Platform. For more information on this platform,
+         see <file:Documentation/arm/IXP4xx>.
+ 
++config MACH_CAMBRIA
++      bool "Cambria"
++      select PCI
++      help
++        Say 'Y' here if you want your kernel to support the Gateworks
++        Cambria series. For more information on this platform,
++        see <file:Documentation/arm/IXP4xx>.
++
+ config MACH_LOFT
+     bool "Loft"
+     depends on MACH_AVILA
+@@ -214,7 +222,7 @@ config CPU_IXP46X
+ 
+ config CPU_IXP43X
+       bool
+-      depends on MACH_KIXRP435
++      depends on MACH_KIXRP435 || MACH_CAMBRIA
+       default y
+ 
+ config MACH_GTWX5715
+--- a/arch/arm/mach-ixp4xx/Makefile
++++ b/arch/arm/mach-ixp4xx/Makefile
+@@ -7,6 +7,7 @@ obj-pci-n      :=
+ 
+ obj-pci-$(CONFIG_ARCH_IXDP4XX)                += ixdp425-pci.o
+ obj-pci-$(CONFIG_MACH_AVILA)          += avila-pci.o
++obj-pci-$(CONFIG_MACH_CAMBRIA)                += cambria-pci.o
+ obj-pci-$(CONFIG_MACH_IXDPG425)               += ixdpg425-pci.o
+ obj-pci-$(CONFIG_ARCH_ADI_COYOTE)     += coyote-pci.o
+ obj-pci-$(CONFIG_MACH_GTWX5715)               += gtwx5715-pci.o
+@@ -29,6 +30,7 @@ obj-y        += common.o
+ 
+ obj-$(CONFIG_ARCH_IXDP4XX)    += ixdp425-setup.o
+ obj-$(CONFIG_MACH_AVILA)      += avila-setup.o
++obj-$(CONFIG_MACH_CAMBRIA)    += cambria-setup.o
+ obj-$(CONFIG_MACH_IXDPG425)   += coyote-setup.o
+ obj-$(CONFIG_ARCH_ADI_COYOTE) += coyote-setup.o
+ obj-$(CONFIG_MACH_GTWX5715)   += gtwx5715-setup.o

diff --git a/target/linux/ixp4xx/patches-2.6.32/191-cambria_optional_uart.patch b/target/linux/ixp4xx/patches-2.6.32/191-cambria_optional_uart.patch
new file mode 100644 (file)
index 0000000..e41b7e1
--- /dev/null
+++ b/target/linux/ixp4xx/patches-2.6.32/191-cambria_optional_uart.patch
@@ -0,0 +1,217 @@
+--- a/arch/arm/mach-ixp4xx/cambria-setup.c
++++ b/arch/arm/mach-ixp4xx/cambria-setup.c
+@@ -34,6 +34,7 @@
+ #include <asm/mach/arch.h>
+ #include <asm/mach/flash.h>
+ #include <asm/setup.h>
++#include <linux/irq.h>
+ 
+ struct cambria_board_info {
+       unsigned char   *model;
+@@ -127,6 +128,45 @@ static struct platform_device cambria_ua
+       .resource       = &cambria_uart_resource,
+ };
+ 
++static struct resource cambria_optional_uart_resources[] = {
++      {
++              .start  = 0x52000000,
++              .end    = 0x52000fff,
++              .flags  = IORESOURCE_MEM
++      },
++      {
++              .start  = 0x53000000,
++              .end    = 0x53000fff,
++              .flags  = IORESOURCE_MEM
++      }
++};
++
++static struct plat_serial8250_port cambria_optional_uart_data[] = {
++      {
++              .flags          = UPF_BOOT_AUTOCONF,
++              .iotype         = UPIO_MEM_DELAY,
++              .regshift       = 0,
++              .uartclk        = 1843200,
++              .rw_delay       = 2,
++      },
++      {
++              .flags          = UPF_BOOT_AUTOCONF,
++              .iotype         = UPIO_MEM_DELAY,
++              .regshift       = 0,
++              .uartclk        = 1843200,
++              .rw_delay       = 2,
++      },
++  { },
++};
++
++static struct platform_device cambria_optional_uart = {
++      .name           = "serial8250",
++      .id             = PLAT8250_DEV_PLATFORM1,
++      .dev.platform_data      = cambria_optional_uart_data,
++      .num_resources  = 2,
++      .resource       = cambria_optional_uart_resources,
++};
++
+ static struct resource cambria_pata_resources[] = {
+       {
+               .flags  = IORESOURCE_MEM
+@@ -283,6 +323,19 @@ static void __init cambria_gw23xx_setup(
+ 
+ static void __init cambria_gw2350_setup(void)
+ {
++      *IXP4XX_EXP_CS2 = 0xBFFF3C43;
++      set_irq_type(IRQ_IXP4XX_GPIO3, IRQ_TYPE_EDGE_RISING);
++      cambria_optional_uart_data[0].mapbase   = 0x52FF0000;
++      cambria_optional_uart_data[0].membase   = (void __iomem *)ioremap(0x52FF0000, 0x0fff);
++      cambria_optional_uart_data[0].irq               = IRQ_IXP4XX_GPIO3;
++
++      *IXP4XX_EXP_CS3 = 0xBFFF3C43;
++      set_irq_type(IRQ_IXP4XX_GPIO4, IRQ_TYPE_EDGE_RISING);
++      cambria_optional_uart_data[1].mapbase   = 0x53FF0000;
++      cambria_optional_uart_data[1].membase   = (void __iomem *)ioremap(0x53FF0000, 0x0fff);
++      cambria_optional_uart_data[1].irq               = IRQ_IXP4XX_GPIO4;
++
++      platform_device_register(&cambria_optional_uart);
+       platform_device_register(&cambria_npec_device);
+       platform_device_register(&cambria_npea_device);
+ 
+@@ -294,6 +347,19 @@ static void __init cambria_gw2350_setup(
+ 
+ static void __init cambria_gw2358_setup(void)
+ {
++      *IXP4XX_EXP_CS3 = 0xBFFF3C43;
++      set_irq_type(IRQ_IXP4XX_GPIO3, IRQ_TYPE_EDGE_RISING);
++      cambria_optional_uart_data[0].mapbase   = 0x53FC0000;
++      cambria_optional_uart_data[0].membase   = (void __iomem *)ioremap(0x53FC0000, 0x0fff);
++      cambria_optional_uart_data[0].irq               = IRQ_IXP4XX_GPIO3;
++
++      set_irq_type(IRQ_IXP4XX_GPIO4, IRQ_TYPE_EDGE_RISING);
++      cambria_optional_uart_data[1].mapbase   = 0x53F80000;
++      cambria_optional_uart_data[1].membase   = (void __iomem *)ioremap(0x53F80000, 0x0fff);
++      cambria_optional_uart_data[1].irq               = IRQ_IXP4XX_GPIO4;
++
++      platform_device_register(&cambria_optional_uart);
++
+       platform_device_register(&cambria_npec_device);
+       platform_device_register(&cambria_npea_device);
+ 
+--- a/include/linux/serial_8250.h
++++ b/include/linux/serial_8250.h
+@@ -27,6 +27,7 @@ struct plat_serial8250_port {
+       void            *private_data;
+       unsigned char   regshift;       /* register shift */
+       unsigned char   iotype;         /* UPIO_* */
++      unsigned int rw_delay;  /* udelay for slower busses IXP4XX Expansion Bus */
+       unsigned char   hub6;
+       upf_t           flags;          /* UPF_* flags */
+       unsigned int    type;           /* If UPF_FIXED_TYPE */
+--- a/include/linux/serial_core.h
++++ b/include/linux/serial_core.h
+@@ -285,6 +285,7 @@ struct uart_port {
+ #define UPIO_TSI              (5)                     /* Tsi108/109 type IO */
+ #define UPIO_DWAPB            (6)                     /* DesignWare APB UART */
+ #define UPIO_RM9000           (7)                     /* RM9000 type IO */
++#define UPIO_MEM_DELAY        (8)
+ 
+       unsigned int            read_status_mask;       /* driver specific */
+       unsigned int            ignore_status_mask;     /* driver specific */
+@@ -327,6 +328,7 @@ struct uart_port {
+ 
+       unsigned int            mctrl;                  /* current modem ctrl settings */
+       unsigned int            timeout;                /* character-based timeout */
++      unsigned int            rw_delay;               /* udelay for slow busses, IXP4XX Expansion Bus */
+       unsigned int            type;                   /* port type */
+       const struct uart_ops   *ops;
+       unsigned int            custom_divisor;
+--- a/drivers/serial/8250.c
++++ b/drivers/serial/8250.c
+@@ -406,6 +406,20 @@ static void mem_serial_out(struct uart_p
+       writeb(value, p->membase + offset);
+ }
+ 
++static unsigned int memdelay_serial_in(struct uart_port *p, int offset)
++{
++      struct uart_8250_port *up = (struct uart_8250_port *)p;
++      udelay(up->port.rw_delay);
++      return mem_serial_in(p, offset);
++}
++
++static void memdelay_serial_out(struct uart_port *p, int offset, int value)
++{
++      struct uart_8250_port *up = (struct uart_8250_port *)p;
++      udelay(up->port.rw_delay);
++      mem_serial_out(p, offset, value);
++}
++
+ static void mem32_serial_out(struct uart_port *p, int offset, int value)
+ {
+       offset = map_8250_out_reg(p, offset) << p->regshift;
+@@ -499,6 +513,11 @@ static void set_io_from_upio(struct uart
+               p->serial_out = mem32_serial_out;
+               break;
+ 
++      case UPIO_MEM_DELAY:
++              p->serial_in = memdelay_serial_in;
++              p->serial_out = memdelay_serial_out;
++              break;
++
+ #ifdef CONFIG_SERIAL_8250_AU1X00
+       case UPIO_AU:
+               p->serial_in = au_serial_in;
+@@ -531,6 +550,7 @@ serial_out_sync(struct uart_8250_port *u
+       switch (p->iotype) {
+       case UPIO_MEM:
+       case UPIO_MEM32:
++      case UPIO_MEM_DELAY:
+ #ifdef CONFIG_SERIAL_8250_AU1X00
+       case UPIO_AU:
+ #endif
+@@ -2451,6 +2471,7 @@ static int serial8250_request_std_resour
+       case UPIO_MEM32:
+       case UPIO_MEM:
+       case UPIO_DWAPB:
++      case UPIO_MEM_DELAY:
+               if (!up->port.mapbase)
+                       break;
+ 
+@@ -2488,6 +2509,7 @@ static void serial8250_release_std_resou
+       case UPIO_MEM32:
+       case UPIO_MEM:
+       case UPIO_DWAPB:
++      case UPIO_MEM_DELAY:
+               if (!up->port.mapbase)
+                       break;
+ 
+@@ -2960,6 +2982,7 @@ static int __devinit serial8250_probe(st
+               port.serial_in          = p->serial_in;
+               port.serial_out         = p->serial_out;
+               port.dev                = &dev->dev;
++              port.rw_delay   = p->rw_delay;
+               if (share_irqs)
+                       port.irqflags |= IRQF_SHARED;
+               ret = serial8250_register_port(&port);
+@@ -3110,6 +3133,7 @@ int serial8250_register_port(struct uart
+               uart->port.iotype       = port->iotype;
+               uart->port.flags        = port->flags | UPF_BOOT_AUTOCONF;
+               uart->port.mapbase      = port->mapbase;
++              uart->port.rw_delay                     = port->rw_delay;
+               uart->port.private_data = port->private_data;
+               if (port->dev)
+                       uart->port.dev = port->dev;
+--- a/drivers/serial/serial_core.c
++++ b/drivers/serial/serial_core.c
+@@ -2161,6 +2161,7 @@ uart_report_port(struct uart_driver *drv
+               snprintf(address, sizeof(address),
+                        "I/O 0x%lx offset 0x%x", port->iobase, port->hub6);
+               break;
++      case UPIO_MEM_DELAY:
+       case UPIO_MEM:
+       case UPIO_MEM32:
+       case UPIO_AU:
+@@ -2573,6 +2574,7 @@ int uart_match_port(struct uart_port *po
+       case UPIO_HUB6:
+               return (port1->iobase == port2->iobase) &&
+                      (port1->hub6   == port2->hub6);
++      case UPIO_MEM_DELAY:
+       case UPIO_MEM:
+       case UPIO_MEM32:
+       case UPIO_AU:

diff --git a/target/linux/ixp4xx/patches-2.6.32/192-cambria_gpio_device.patch b/target/linux/ixp4xx/patches-2.6.32/192-cambria_gpio_device.patch
new file mode 100644 (file)
index 0000000..d785c3a
--- /dev/null
+++ b/target/linux/ixp4xx/patches-2.6.32/192-cambria_gpio_device.patch
@@ -0,0 +1,46 @@
+--- a/arch/arm/mach-ixp4xx/cambria-setup.c
++++ b/arch/arm/mach-ixp4xx/cambria-setup.c
+@@ -214,6 +214,20 @@ static struct platform_device cambria_gp
+       .dev.platform_data = &cambria_gpio_leds_data,
+ };
+ 
++static struct resource cambria_gpio_resources[] = {
++      {
++              .name = "gpio",
++              .flags  = 0,
++      },
++};
++
++static struct platform_device cambria_gpio = {
++      .name     = "GPIODEV",
++      .id     = -1,
++      .num_resources    = ARRAY_SIZE(cambria_gpio_resources),
++      .resource   = cambria_gpio_resources,
++};
++
+ static struct latch_led cambria_latch_leds[] = {
+       {
+               .name   = "ledA",  /* green led */
+@@ -335,6 +349,11 @@ static void __init cambria_gw2350_setup(
+       cambria_optional_uart_data[1].membase   = (void __iomem *)ioremap(0x53FF0000, 0x0fff);
+       cambria_optional_uart_data[1].irq               = IRQ_IXP4XX_GPIO4;
+ 
++      cambria_gpio_resources[0].start = (1 << 0) | (1 << 1) | (1 << 2) | (1 << 3) | (1 << 4) |\
++                                                                                                                                              (1 << 5) | (1 << 8) | (1 << 9) | (1 << 12);
++      cambria_gpio_resources[0].end = cambria_gpio_resources[0].start;
++
++      platform_device_register(&cambria_gpio);
+       platform_device_register(&cambria_optional_uart);
+       platform_device_register(&cambria_npec_device);
+       platform_device_register(&cambria_npea_device);
+@@ -358,6 +377,10 @@ static void __init cambria_gw2358_setup(
+       cambria_optional_uart_data[1].membase   = (void __iomem *)ioremap(0x53F80000, 0x0fff);
+       cambria_optional_uart_data[1].irq               = IRQ_IXP4XX_GPIO4;
+ 
++      cambria_gpio_resources[0].start = (1 << 14);
++      cambria_gpio_resources[0].end = cambria_gpio_resources[0].start;
++
++      platform_device_register(&cambria_gpio);
+       platform_device_register(&cambria_optional_uart);
+ 
+       platform_device_register(&cambria_npec_device);

diff --git a/target/linux/ixp4xx/patches-2.6.32/193-cambria_pld_gpio.patch b/target/linux/ixp4xx/patches-2.6.32/193-cambria_pld_gpio.patch
new file mode 100644 (file)
index 0000000..299630f
--- /dev/null
+++ b/target/linux/ixp4xx/patches-2.6.32/193-cambria_pld_gpio.patch
@@ -0,0 +1,107 @@
+--- a/arch/arm/mach-ixp4xx/cambria-setup.c
++++ b/arch/arm/mach-ixp4xx/cambria-setup.c
+@@ -12,11 +12,14 @@
+  */
+ 
+ #include <linux/device.h>
++#include <linux/gpio_buttons.h>
+ #include <linux/i2c.h>
+ #include <linux/i2c-gpio.h>
+ #include <linux/i2c/at24.h>
++#include <linux/i2c/gw_i2c_pld.h>
+ #include <linux/if_ether.h>
+ #include <linux/init.h>
++#include <linux/input.h>
+ #include <linux/kernel.h>
+ #include <linux/leds.h>
+ #include <linux/memory.h>
+@@ -323,6 +326,39 @@ static struct platform_device cambria_us
+       },
+ };
+ 
++static struct gw_i2c_pld_platform_data gw_i2c_pld_data0 = {
++      .gpio_base      = 16,
++      .nr_gpio        = 8,
++};
++
++static struct gw_i2c_pld_platform_data gw_i2c_pld_data1 = {
++      .gpio_base      = 24,
++      .nr_gpio        = 2,
++};
++
++
++static struct gpio_button cambria_gpio_buttons[] = {
++      {
++              .desc           = "user",
++              .type           = EV_KEY,
++              .code           = BTN_0,
++              .threshold      = 2,
++              .gpio           = 25,
++      }
++};
++
++static struct gpio_buttons_platform_data cambria_gpio_buttons_data = {
++      .poll_interval  = 500,
++      .nbuttons       = 1,
++      .buttons        = cambria_gpio_buttons, 
++};
++
++static struct platform_device cambria_gpio_buttons_device = {
++      .name                   = "gpio-buttons",
++      .id                     = -1,
++      .dev.platform_data      = &cambria_gpio_buttons_data,
++};
++
+ static struct platform_device *cambria_devices[] __initdata = {
+       &cambria_i2c_gpio,
+       &cambria_flash,
+@@ -331,6 +367,11 @@ static struct platform_device *cambria_d
+ 
+ static void __init cambria_gw23xx_setup(void)
+ {
++      cambria_gpio_resources[0].start = (1 << 0) | (1 << 1) | (1 << 2) | (1 << 3) | (1 << 4) |\
++                                                                                                                                              (1 << 5) | (1 << 8) | (1 << 9) | (1 << 12);
++      cambria_gpio_resources[0].end = cambria_gpio_resources[0].start;
++
++      platform_device_register(&cambria_gpio);
+       platform_device_register(&cambria_npec_device);
+       platform_device_register(&cambria_npea_device);
+ }
+@@ -377,7 +418,8 @@ static void __init cambria_gw2358_setup(
+       cambria_optional_uart_data[1].membase   = (void __iomem *)ioremap(0x53F80000, 0x0fff);
+       cambria_optional_uart_data[1].irq               = IRQ_IXP4XX_GPIO4;
+ 
+-      cambria_gpio_resources[0].start = (1 << 14);
++      cambria_gpio_resources[0].start = (1 << 14) | (1 << 16) | (1 << 17) | (1 << 18) |\
++                                                                                                                                              (1 << 19) | (1 << 20) | (1 << 24) | (1 << 25);
+       cambria_gpio_resources[0].end = cambria_gpio_resources[0].start;
+ 
+       platform_device_register(&cambria_gpio);
+@@ -391,7 +433,12 @@ static void __init cambria_gw2358_setup(
+ 
+       platform_device_register(&cambria_pata);
+ 
++      cambria_gpio_leds[0].gpio = 24;
++      platform_device_register(&cambria_gpio_leds_device);
++
+       platform_device_register(&cambria_latch_leds_device);
++
++      platform_device_register(&cambria_gpio_buttons_device);
+ }
+ 
+ static struct cambria_board_info cambria_boards[] __initdata = {
+@@ -460,6 +507,14 @@ static struct i2c_board_info __initdata 
+               I2C_BOARD_INFO("24c08", 0x51),
+               .platform_data  = &cambria_eeprom_info
+       },
++      {
++              I2C_BOARD_INFO("gw_i2c_pld", 0x56),
++              .platform_data  = &gw_i2c_pld_data0,
++      },
++      {
++              I2C_BOARD_INFO("gw_i2c_pld", 0x57),
++              .platform_data  = &gw_i2c_pld_data1,
++      },
+ };
+ 
+ static void __init cambria_init(void)

diff --git a/target/linux/ixp4xx/patches-2.6.32/201-npe_driver_print_license_location.patch b/target/linux/ixp4xx/patches-2.6.32/201-npe_driver_print_license_location.patch
new file mode 100644 (file)
index 0000000..b97dd77
--- /dev/null
+++ b/target/linux/ixp4xx/patches-2.6.32/201-npe_driver_print_license_location.patch
@@ -0,0 +1,11 @@
+--- a/arch/arm/mach-ixp4xx/ixp4xx_npe.c
++++ b/arch/arm/mach-ixp4xx/ixp4xx_npe.c
+@@ -583,6 +583,8 @@ int npe_load_firmware(struct npe *npe, c
+       npe_reset(npe);
+ #endif
+ 
++      print_npe(KERN_INFO, npe, "firmware's license can be found in /usr/share/doc/LICENSE.IPL\n");
++
+       print_npe(KERN_INFO, npe, "firmware functionality 0x%X, "
+                 "revision 0x%X:%X\n", (image->id >> 16) & 0xFF,
+                 (image->id >> 8) & 0xFF, image->id & 0xFF);

diff --git a/target/linux/ixp4xx/patches-2.6.32/203-npe_driver_mask_phy_features.patch b/target/linux/ixp4xx/patches-2.6.32/203-npe_driver_mask_phy_features.patch
new file mode 100644 (file)
index 0000000..eacf35d
--- /dev/null
+++ b/target/linux/ixp4xx/patches-2.6.32/203-npe_driver_mask_phy_features.patch
@@ -0,0 +1,13 @@
+--- a/drivers/net/arm/ixp4xx_eth.c
++++ b/drivers/net/arm/ixp4xx_eth.c
+@@ -1217,6 +1217,10 @@ static int __devinit eth_init_one(struct
+       if ((err = IS_ERR(port->phydev)))
+               goto err_free_mem;
+ 
++      /* mask with MAC supported features */
++      port->phydev->supported &= PHY_BASIC_FEATURES;
++      port->phydev->advertising = port->phydev->supported;
++
+       port->phydev->irq = PHY_POLL;
+ 
+       if ((err = register_netdev(dev)))

diff --git a/target/linux/ixp4xx/patches-2.6.32/205-npe_driver_separate_phy_functions.patch b/target/linux/ixp4xx/patches-2.6.32/205-npe_driver_separate_phy_functions.patch
new file mode 100644 (file)
index 0000000..b9835a0
--- /dev/null
+++ b/target/linux/ixp4xx/patches-2.6.32/205-npe_driver_separate_phy_functions.patch
@@ -0,0 +1,119 @@
+--- a/drivers/net/arm/ixp4xx_eth.c
++++ b/drivers/net/arm/ixp4xx_eth.c
+@@ -396,6 +396,50 @@ static void ixp4xx_adjust_link(struct ne
+              dev->name, port->speed, port->duplex ? "full" : "half");
+ }
+ 
++static int ixp4xx_phy_connect(struct net_device *dev)
++{
++      struct port *port = netdev_priv(dev);
++      struct eth_plat_info *plat = port->plat;
++      char phy_id[MII_BUS_ID_SIZE + 3];
++
++      snprintf(phy_id, MII_BUS_ID_SIZE + 3, PHY_ID_FMT, "0", plat->phy);
++      port->phydev = phy_connect(dev, phy_id, &ixp4xx_adjust_link, 0,
++                                 PHY_INTERFACE_MODE_MII);
++      if (IS_ERR(port->phydev)) {
++              printk(KERN_ERR "%s: Could not attach to PHY\n", dev->name);
++              return PTR_ERR(port->phydev);
++      }
++
++      /* mask with MAC supported features */
++      port->phydev->supported &= PHY_BASIC_FEATURES;
++      port->phydev->advertising = port->phydev->supported;
++
++      port->phydev->irq = PHY_POLL;
++
++      return 0;
++}
++
++static void ixp4xx_phy_disconnect(struct net_device *dev)
++{
++      struct port *port = netdev_priv(dev);
++
++      phy_disconnect(port->phydev);
++}
++
++static void ixp4xx_phy_start(struct net_device *dev)
++{
++      struct port *port = netdev_priv(dev);
++
++      port->speed = 0;        /* force "link up" message */
++      phy_start(port->phydev);
++}
++
++static void ixp4xx_phy_stop(struct net_device *dev)
++{
++      struct port *port = netdev_priv(dev);
++
++      phy_stop(port->phydev);
++}
+ 
+ static inline void debug_pkt(struct net_device *dev, const char *func,
+                            u8 *data, int len)
+@@ -1005,8 +1049,7 @@ static int eth_open(struct net_device *d
+               return err;
+       }
+ 
+-      port->speed = 0;        /* force "link up" message */
+-      phy_start(port->phydev);
++      ixp4xx_phy_start(dev);
+ 
+       for (i = 0; i < ETH_ALEN; i++)
+               __raw_writel(dev->dev_addr[i], &port->regs->hw_addr[i]);
+@@ -1127,7 +1170,7 @@ static int eth_close(struct net_device *
+               printk(KERN_CRIT "%s: unable to disable loopback\n",
+                      dev->name);
+ 
+-      phy_stop(port->phydev);
++      ixp4xx_phy_stop(dev);
+ 
+       if (!ports_open)
+               qmgr_disable_irq(TXDONE_QUEUE);
+@@ -1153,7 +1196,6 @@ static int __devinit eth_init_one(struct
+       struct net_device *dev;
+       struct eth_plat_info *plat = pdev->dev.platform_data;
+       u32 regs_phys;
+-      char phy_id[MII_BUS_ID_SIZE + 3];
+       int err;
+ 
+       if (!(dev = alloc_etherdev(sizeof(struct port))))
+@@ -1211,18 +1253,10 @@ static int __devinit eth_init_one(struct
+       __raw_writel(DEFAULT_CORE_CNTRL, &port->regs->core_control);
+       udelay(50);
+ 
+-      snprintf(phy_id, MII_BUS_ID_SIZE + 3, PHY_ID_FMT, "0", plat->phy);
+-      port->phydev = phy_connect(dev, phy_id, &ixp4xx_adjust_link, 0,
+-                                 PHY_INTERFACE_MODE_MII);
+-      if ((err = IS_ERR(port->phydev)))
++      err = ixp4xx_phy_connect(dev);
++      if (err)
+               goto err_free_mem;
+ 
+-      /* mask with MAC supported features */
+-      port->phydev->supported &= PHY_BASIC_FEATURES;
+-      port->phydev->advertising = port->phydev->supported;
+-
+-      port->phydev->irq = PHY_POLL;
+-
+       if ((err = register_netdev(dev)))
+               goto err_phy_dis;
+ 
+@@ -1232,7 +1266,7 @@ static int __devinit eth_init_one(struct
+       return 0;
+ 
+ err_phy_dis:
+-      phy_disconnect(port->phydev);
++      ixp4xx_phy_disconnect(port->phydev);
+ err_free_mem:
+       npe_port_tab[NPE_ID(port->id)] = NULL;
+       platform_set_drvdata(pdev, NULL);
+@@ -1250,7 +1284,7 @@ static int __devexit eth_remove_one(stru
+       struct port *port = netdev_priv(dev);
+ 
+       unregister_netdev(dev);
+-      phy_disconnect(port->phydev);
++      ixp4xx_phy_disconnect(dev);
+       npe_port_tab[NPE_ID(port->id)] = NULL;
+       platform_set_drvdata(pdev, NULL);
+       npe_release(port->npe);

diff --git a/target/linux/ixp4xx/patches-2.6.32/206-npe_driver_add_update_link_function.patch b/target/linux/ixp4xx/patches-2.6.32/206-npe_driver_add_update_link_function.patch
new file mode 100644 (file)
index 0000000..419ec4c
--- /dev/null
+++ b/target/linux/ixp4xx/patches-2.6.32/206-npe_driver_add_update_link_function.patch
@@ -0,0 +1,98 @@
+--- a/drivers/net/arm/ixp4xx_eth.c
++++ b/drivers/net/arm/ixp4xx_eth.c
+@@ -168,7 +168,7 @@ struct port {
+       struct desc *desc_tab;  /* coherent */
+       u32 desc_tab_phys;
+       int id;                 /* logical port ID */
+-      int speed, duplex;
++      int link, speed, duplex;
+       u8 firmware[4];
+ };
+ 
+@@ -365,37 +365,52 @@ static void ixp4xx_mdio_remove(void)
+       mdiobus_free(mdio_bus);
+ }
+ 
+-
+-static void ixp4xx_adjust_link(struct net_device *dev)
++static void ixp4xx_update_link(struct net_device *dev)
+ {
+       struct port *port = netdev_priv(dev);
+-      struct phy_device *phydev = port->phydev;
+ 
+-      if (!phydev->link) {
+-              if (port->speed) {
+-                      port->speed = 0;
+-                      printk(KERN_INFO "%s: link down\n", dev->name);
+-              }
++      if (!port->link) {
++              netif_carrier_off(dev);
++              printk(KERN_INFO "%s: link down\n", dev->name);
+               return;
+       }
+ 
+-      if (port->speed == phydev->speed && port->duplex == phydev->duplex)
+-              return;
+-
+-      port->speed = phydev->speed;
+-      port->duplex = phydev->duplex;
+-
+-      if (port->duplex)
++      if (port->duplex == DUPLEX_FULL)
+               __raw_writel(DEFAULT_TX_CNTRL0 & ~TX_CNTRL0_HALFDUPLEX,
+                            &port->regs->tx_control[0]);
+       else
+               __raw_writel(DEFAULT_TX_CNTRL0 | TX_CNTRL0_HALFDUPLEX,
+                            &port->regs->tx_control[0]);
+ 
++      netif_carrier_on(dev);
+       printk(KERN_INFO "%s: link up, speed %u Mb/s, %s duplex\n",
+              dev->name, port->speed, port->duplex ? "full" : "half");
+ }
+ 
++static void ixp4xx_adjust_link(struct net_device *dev)
++{
++      struct port *port = netdev_priv(dev);
++      struct phy_device *phydev = port->phydev;
++      int status_change = 0;
++
++      if (phydev->link) {
++              if (port->duplex != phydev->duplex
++                  || port->speed != phydev->speed) {
++                      status_change = 1;
++              }
++      }
++
++      if (phydev->link != port->link)
++              status_change = 1;
++
++      port->link = phydev->link;
++      port->speed = phydev->speed;
++      port->duplex = phydev->duplex;
++
++      if (status_change)
++              ixp4xx_update_link(dev);
++}
++
+ static int ixp4xx_phy_connect(struct net_device *dev)
+ {
+       struct port *port = netdev_priv(dev);
+@@ -430,7 +445,6 @@ static void ixp4xx_phy_start(struct net_
+ {
+       struct port *port = netdev_priv(dev);
+ 
+-      port->speed = 0;        /* force "link up" message */
+       phy_start(port->phydev);
+ }
+ 
+@@ -1260,6 +1274,10 @@ static int __devinit eth_init_one(struct
+       if ((err = register_netdev(dev)))
+               goto err_phy_dis;
+ 
++      port->link = 0;
++      port->speed = 0;
++      port->duplex = -1;
++
+       printk(KERN_INFO "%s: MII PHY %i on %s\n", dev->name, plat->phy,
+              npe_name(port->npe));
+ 

diff --git a/target/linux/ixp4xx/patches-2.6.32/207-npe_driver_multiphy_support.patch b/target/linux/ixp4xx/patches-2.6.32/207-npe_driver_multiphy_support.patch
new file mode 100644 (file)
index 0000000..afcf7e1
--- /dev/null
+++ b/target/linux/ixp4xx/patches-2.6.32/207-npe_driver_multiphy_support.patch
@@ -0,0 +1,155 @@
+TODO: take care of additional PHYs through the PHY abstraction layer
+
+--- a/arch/arm/mach-ixp4xx/include/mach/platform.h
++++ b/arch/arm/mach-ixp4xx/include/mach/platform.h
+@@ -72,7 +72,7 @@ extern unsigned long ixp4xx_exp_bus_size
+ /*
+  * Clock Speed Definitions.
+  */
+-#define IXP4XX_PERIPHERAL_BUS_CLOCK   (66) /* 66Mhzi APB BUS   */ 
++#define IXP4XX_PERIPHERAL_BUS_CLOCK   (66) /* 66Mhzi APB BUS   */
+ #define IXP4XX_UART_XTAL              14745600
+ 
+ /*
+@@ -95,12 +95,23 @@ struct sys_timer;
+ #define IXP4XX_ETH_NPEB               0x10
+ #define IXP4XX_ETH_NPEC               0x20
+ 
++#define IXP4XX_ETH_PHY_MAX_ADDR       32
++
+ /* Information about built-in Ethernet MAC interfaces */
+ struct eth_plat_info {
+       u8 phy;         /* MII PHY ID, 0 - 31 */
+       u8 rxq;         /* configurable, currently 0 - 31 only */
+       u8 txreadyq;
+       u8 hwaddr[6];
++
++      u32 phy_mask;
++#if 0
++      int speed;
++      int duplex;
++#else
++      int speed_10;
++      int half_duplex;
++#endif
+ };
+ 
+ /* Information about built-in HSS (synchronous serial) interfaces */
+--- a/drivers/net/arm/ixp4xx_eth.c
++++ b/drivers/net/arm/ixp4xx_eth.c
+@@ -417,6 +417,37 @@ static int ixp4xx_phy_connect(struct net
+       struct eth_plat_info *plat = port->plat;
+       char phy_id[MII_BUS_ID_SIZE + 3];
+ 
++      if (plat->phy == IXP4XX_ETH_PHY_MAX_ADDR) {
++#if 0
++              switch (plat->speed) {
++              case SPEED_10:
++              case SPEED_100:
++                      break;
++              default:
++                      printk(KERN_ERR "%s: invalid speed (%d)\n",
++                                      dev->name, plat->speed);
++                      return -EINVAL;
++              }
++
++              switch (plat->duplex) {
++              case DUPLEX_HALF:
++              case DUPLEX_FULL:
++                      break;
++              default:
++                      printk(KERN_ERR "%s: invalid duplex mode (%d)\n",
++                                      dev->name, plat->duplex);
++                      return -EINVAL;
++              }
++              port->speed = plat->speed;
++              port->duplex = plat->duplex;
++#else
++              port->speed = plat->speed_10 ? SPEED_10 : SPEED_100;
++              port->duplex = plat->half_duplex ? DUPLEX_HALF : DUPLEX_FULL;
++#endif
++
++              return 0;
++      }
++
+       snprintf(phy_id, MII_BUS_ID_SIZE + 3, PHY_ID_FMT, "0", plat->phy);
+       port->phydev = phy_connect(dev, phy_id, &ixp4xx_adjust_link, 0,
+                                  PHY_INTERFACE_MODE_MII);
+@@ -438,21 +469,32 @@ static void ixp4xx_phy_disconnect(struct
+ {
+       struct port *port = netdev_priv(dev);
+ 
+-      phy_disconnect(port->phydev);
++      if (port->phydev)
++              phy_disconnect(port->phydev);
+ }
+ 
+ static void ixp4xx_phy_start(struct net_device *dev)
+ {
+       struct port *port = netdev_priv(dev);
+ 
+-      phy_start(port->phydev);
++      if (port->phydev) {
++              phy_start(port->phydev);
++      } else {
++              port->link = 1;
++              ixp4xx_update_link(dev);
++      }
+ }
+ 
+ static void ixp4xx_phy_stop(struct net_device *dev)
+ {
+       struct port *port = netdev_priv(dev);
+ 
+-      phy_stop(port->phydev);
++      if (port->phydev) {
++              phy_stop(port->phydev);
++      } else {
++              port->link = 0;
++              ixp4xx_update_link(dev);
++      }
+ }
+ 
+ static inline void debug_pkt(struct net_device *dev, const char *func,
+@@ -826,6 +868,10 @@ static int eth_ioctl(struct net_device *
+ 
+       if (!netif_running(dev))
+               return -EINVAL;
++
++      if (!port->phydev)
++              return -EOPNOTSUPP;
++
+       return phy_mii_ioctl(port->phydev, if_mii(req), cmd);
+ }
+ 
+@@ -845,18 +891,30 @@ static void ixp4xx_get_drvinfo(struct ne
+ static int ixp4xx_get_settings(struct net_device *dev, struct ethtool_cmd *cmd)
+ {
+       struct port *port = netdev_priv(dev);
++
++      if (!port->phydev)
++              return -EOPNOTSUPP;
++
+       return phy_ethtool_gset(port->phydev, cmd);
+ }
+ 
+ static int ixp4xx_set_settings(struct net_device *dev, struct ethtool_cmd *cmd)
+ {
+       struct port *port = netdev_priv(dev);
++
++      if (!port->phydev)
++              return -EOPNOTSUPP;
++
+       return phy_ethtool_sset(port->phydev, cmd);
+ }
+ 
+ static int ixp4xx_nway_reset(struct net_device *dev)
+ {
+       struct port *port = netdev_priv(dev);
++
++      if (!port->phydev)
++              return -EOPNOTSUPP;
++
+       return phy_start_aneg(port->phydev);
+ }
+ 

diff --git a/target/linux/ixp4xx/patches-2.6.32/295-latch_led_driver.patch b/target/linux/ixp4xx/patches-2.6.32/295-latch_led_driver.patch
new file mode 100644 (file)
index 0000000..853636d
--- /dev/null
+++ b/target/linux/ixp4xx/patches-2.6.32/295-latch_led_driver.patch
@@ -0,0 +1,200 @@
+--- a/drivers/leds/Kconfig
++++ b/drivers/leds/Kconfig
+@@ -157,6 +157,13 @@ config LEDS_LP3944
+         To compile this driver as a module, choose M here: the
+         module will be called leds-lp3944.
+ 
++config LEDS_LATCH
++      tristate "LED Support for Memory Latched LEDs"
++      depends on LEDS_CLASS
++      help
++              -- To Do --
++
++
+ config LEDS_CLEVO_MAIL
+       tristate "Mail LED on Clevo notebook"
+       depends on LEDS_CLASS && X86 && SERIO_I8042 && DMI
+--- /dev/null
++++ b/drivers/leds/leds-latch.c
+@@ -0,0 +1,149 @@
++/*
++ * LEDs driver for Memory Latched Devices
++ *
++ * Copyright (C) 2008 Gateworks Corp.
++ * Chris Lang <clang@gateworks.com>
++ *
++ * 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 <linux/kernel.h>
++#include <linux/init.h>
++#include <linux/platform_device.h>
++#include <linux/leds.h>
++#include <linux/workqueue.h>
++#include <asm/io.h>
++#include <linux/spinlock.h>
++
++static unsigned int mem_keep = 0xFF;
++static spinlock_t mem_lock;
++static unsigned char *iobase;
++
++struct latch_led_data {
++      struct led_classdev cdev;
++      struct work_struct work;
++      u8 new_level;
++      u8 bit;
++      void (*set_led)(u8 bit, enum led_brightness value);
++};
++
++static void latch_set_led(u8 bit, enum led_brightness value)
++{
++      if (value == LED_OFF)
++              mem_keep |= (0x1 << bit);
++      else
++              mem_keep &= ~(0x1 << bit);
++
++      writeb(mem_keep, iobase);
++}
++
++static void latch_led_set(struct led_classdev *led_cdev,
++      enum led_brightness value)
++{
++      struct latch_led_data *led_dat =
++              container_of(led_cdev, struct latch_led_data, cdev);
++
++      spin_lock(mem_lock);
++
++      led_dat->set_led(led_dat->bit, value);
++
++      spin_unlock(mem_lock);
++}
++
++static int latch_led_probe(struct platform_device *pdev)
++{
++      struct latch_led_platform_data *pdata = pdev->dev.platform_data;
++      struct latch_led *cur_led;
++      struct latch_led_data *leds_data, *led_dat;
++      int i, ret = 0;
++
++      if (!pdata)
++              return -EBUSY;
++
++      leds_data = kzalloc(sizeof(struct latch_led_data) * pdata->num_leds,
++                              GFP_KERNEL);
++      if (!leds_data)
++              return -ENOMEM;
++
++      for (i = 0; i < pdata->num_leds; i++) {
++              cur_led = &pdata->leds[i];
++              led_dat = &leds_data[i];
++
++              led_dat->cdev.name = cur_led->name;
++              led_dat->cdev.default_trigger = cur_led->default_trigger;
++              led_dat->cdev.brightness_set = latch_led_set;
++              led_dat->cdev.brightness = LED_OFF;
++              led_dat->bit = cur_led->bit;
++              led_dat->set_led = pdata->set_led ? pdata->set_led : latch_set_led;
++
++              ret = led_classdev_register(&pdev->dev, &led_dat->cdev);
++              if (ret < 0) {
++                      goto err;
++              }
++      }
++
++      if (!pdata->set_led) {
++              iobase = ioremap_nocache(pdata->mem, 0x1000);
++              writeb(0xFF, iobase);
++      }
++      platform_set_drvdata(pdev, leds_data);
++
++      return 0;
++
++err:
++      if (i > 0) {
++              for (i = i - 1; i >= 0; i--) {
++                      led_classdev_unregister(&leds_data[i].cdev);
++              }
++      }
++
++      kfree(leds_data);
++
++      return ret;
++}
++
++static int __devexit latch_led_remove(struct platform_device *pdev)
++{
++      int i;
++      struct latch_led_platform_data *pdata = pdev->dev.platform_data;
++      struct latch_led_data *leds_data;
++
++      leds_data = platform_get_drvdata(pdev);
++
++      for (i = 0; i < pdata->num_leds; i++) {
++              led_classdev_unregister(&leds_data[i].cdev);
++              cancel_work_sync(&leds_data[i].work);
++      }
++
++      kfree(leds_data);
++
++      return 0;
++}
++
++static struct platform_driver latch_led_driver = {
++      .probe          = latch_led_probe,
++      .remove         = __devexit_p(latch_led_remove),
++      .driver         = {
++              .name   = "leds-latch",
++              .owner  = THIS_MODULE,
++      },
++};
++
++static int __init latch_led_init(void)
++{
++      return platform_driver_register(&latch_led_driver);
++}
++
++static void __exit latch_led_exit(void)
++{
++      platform_driver_unregister(&latch_led_driver);
++}
++
++module_init(latch_led_init);
++module_exit(latch_led_exit);
++
++MODULE_AUTHOR("Chris Lang <clang@gateworks.com>");
++MODULE_DESCRIPTION("Latch LED driver");
++MODULE_LICENSE("GPL");
+--- a/drivers/leds/Makefile
++++ b/drivers/leds/Makefile
+@@ -20,6 +20,7 @@ obj-$(CONFIG_LEDS_COBALT_RAQ)                += leds-c
+ obj-$(CONFIG_LEDS_SUNFIRE)            += leds-sunfire.o
+ obj-$(CONFIG_LEDS_PCA9532)            += leds-pca9532.o
+ obj-$(CONFIG_LEDS_GPIO)                       += leds-gpio.o
++obj-$(CONFIG_LEDS_LATCH)              += leds-latch.o
+ obj-$(CONFIG_LEDS_LP3944)             += leds-lp3944.o
+ obj-$(CONFIG_LEDS_CLEVO_MAIL)         += leds-clevo-mail.o
+ obj-$(CONFIG_LEDS_HP6XX)              += leds-hp6xx.o
+--- a/include/linux/leds.h
++++ b/include/linux/leds.h
+@@ -161,5 +161,19 @@ struct gpio_led_platform_data {
+                                       unsigned long *delay_off);
+ };
+ 
++/* For the leds-latch driver */
++struct latch_led {
++      const char *name;
++      char *default_trigger;
++      unsigned  bit;
++};
++
++struct latch_led_platform_data {
++      int     num_leds;
++      u32     mem;
++      struct latch_led *leds;
++      void    (*set_led)(u8 bit, enum led_brightness value);
++};
++
+ 
+ #endif                /* __LINUX_LEDS_H_INCLUDED */

diff --git a/target/linux/ixp4xx/patches-2.6.32/300-avila_fetch_mac.patch b/target/linux/ixp4xx/patches-2.6.32/300-avila_fetch_mac.patch
new file mode 100644 (file)
index 0000000..ca8cae1
--- /dev/null
+++ b/target/linux/ixp4xx/patches-2.6.32/300-avila_fetch_mac.patch
@@ -0,0 +1,244 @@
+--- a/arch/arm/mach-ixp4xx/avila-setup.c
++++ b/arch/arm/mach-ixp4xx/avila-setup.c
+@@ -14,10 +14,16 @@
+ #include <linux/kernel.h>
+ #include <linux/init.h>
+ #include <linux/device.h>
++#include <linux/if_ether.h>
++#include <linux/socket.h>
++#include <linux/netdevice.h>
+ #include <linux/serial.h>
+ #include <linux/tty.h>
+ #include <linux/serial_8250.h>
+ #include <linux/slab.h>
++#include <linux/i2c.h>
++#include <linux/i2c/at24.h>
++
+ #include <linux/i2c-gpio.h>
+ 
+ #include <asm/types.h>
+@@ -29,6 +35,13 @@
+ #include <asm/mach/arch.h>
+ #include <asm/mach/flash.h>
+ 
++struct avila_board_info {
++      unsigned char   *model;
++      void            (*setup)(void);
++};
++
++static struct avila_board_info *avila_info __initdata;
++
+ static struct flash_platform_data avila_flash_data = {
+       .map_name       = "cfi_probe",
+       .width          = 2,
+@@ -132,16 +145,181 @@ static struct platform_device avila_pata
+       .resource               = avila_pata_resources,
+ };
+ 
++/* Built-in 10/100 Ethernet MAC interfaces */
++static struct eth_plat_info avila_npeb_data = {
++      .phy            = 0,
++      .rxq            = 3,
++      .txreadyq       = 20,
++};
++
++static struct eth_plat_info avila_npec_data = {
++      .phy            = 1,
++      .rxq            = 4,
++      .txreadyq       = 21,
++};
++
++static struct platform_device avila_npeb_device = {
++      .name                   = "ixp4xx_eth",
++      .id                     = IXP4XX_ETH_NPEB,
++      .dev.platform_data      = &avila_npeb_data,
++};
++
++static struct platform_device avila_npec_device = {
++      .name                   = "ixp4xx_eth",
++      .id                     = IXP4XX_ETH_NPEC,
++      .dev.platform_data      = &avila_npec_data,
++};
++
+ static struct platform_device *avila_devices[] __initdata = {
+       &avila_i2c_gpio,
+       &avila_flash,
+       &avila_uart
+ };
+ 
++static void __init avila_gw23xx_setup(void)
++{
++      platform_device_register(&avila_npeb_device);
++      platform_device_register(&avila_npec_device);
++}
++
++static void __init avila_gw2342_setup(void)
++{
++      platform_device_register(&avila_npeb_device);
++      platform_device_register(&avila_npec_device);
++}
++
++static void __init avila_gw2345_setup(void)
++{
++      avila_npeb_data.phy = IXP4XX_ETH_PHY_MAX_ADDR;
++      avila_npeb_data.phy_mask = 0x1e; /* ports 1-4 of the KS8995 switch */
++      platform_device_register(&avila_npeb_device);
++
++      avila_npec_data.phy = 5; /* port 5 of the KS8995 switch */
++      platform_device_register(&avila_npec_device);
++}
++
++static void __init avila_gw2347_setup(void)
++{
++      platform_device_register(&avila_npeb_device);
++}
++
++static void __init avila_gw2348_setup(void)
++{
++      platform_device_register(&avila_npeb_device);
++      platform_device_register(&avila_npec_device);
++}
++
++static void __init avila_gw2353_setup(void)
++{
++      platform_device_register(&avila_npeb_device);
++}
++
++static void __init avila_gw2355_setup(void)
++{
++      avila_npeb_data.phy = IXP4XX_ETH_PHY_MAX_ADDR;
++      avila_npeb_data.phy_mask = 0x1e; /* ports 1-4 of the KS8995 switch */
++      platform_device_register(&avila_npeb_device);
++
++      avila_npec_data.phy = 16;
++      platform_device_register(&avila_npec_device);
++}
++
++static void __init avila_gw2357_setup(void)
++{
++      platform_device_register(&avila_npeb_device);
++}
++
++static struct avila_board_info avila_boards[] __initdata = {
++      {
++              .model          = "GW2342",
++              .setup          = avila_gw2342_setup,
++      }, {
++              .model          = "GW2345",
++              .setup          = avila_gw2345_setup,
++      }, {
++              .model          = "GW2347",
++              .setup          = avila_gw2347_setup,
++      }, {
++              .model          = "GW2348",
++              .setup          = avila_gw2348_setup,
++      }, {
++              .model          = "GW2353",
++              .setup          = avila_gw2353_setup,
++      }, {
++              .model          = "GW2355",
++              .setup          = avila_gw2355_setup,
++      }, {
++              .model          = "GW2357",
++              .setup          = avila_gw2357_setup,
++      }
++};
++
++static struct avila_board_info * __init avila_find_board_info(char *model)
++{
++      int i;
++
++      for (i = 0; i < ARRAY_SIZE(avila_boards); i++) {
++              struct avila_board_info *info = &avila_boards[i];
++              if (strcmp(info->model, model) == 0)
++                      return info;
++      }
++
++      return NULL;
++}
++
++static struct memory_accessor *at24_mem_acc;
++
++static int at24_setup(struct memory_accessor *mem_acc, void *context)
++{
++      char mac_addr[ETH_ALEN];
++      char model[6];
++
++      at24_mem_acc = mem_acc;
++
++      /* Read MAC addresses */
++      if (at24_mem_acc->read(at24_mem_acc, mac_addr, 0x0, 6) == 6) {
++              memcpy(&avila_npeb_data.hwaddr, mac_addr, ETH_ALEN);
++      }
++      if (at24_mem_acc->read(at24_mem_acc, mac_addr, 0x6, 6) == 6) {
++              memcpy(&avila_npec_data.hwaddr, mac_addr, ETH_ALEN);
++      }
++
++      /* Read the first 6 bytes of the model number */
++      if (at24_mem_acc->read(at24_mem_acc, model, 0x20, 6) == 6) {
++              avila_info = avila_find_board_info(model);
++      }
++
++      return 0;
++}
++
++static struct at24_platform_data avila_eeprom_info = {
++      .byte_len       = 1024,
++      .page_size      = 16,
++      .flags          = AT24_FLAG_READONLY,
++      .setup          = at24_setup,
++};
++
++static struct i2c_board_info __initdata avila_i2c_board_info[] = {
++      {
++              I2C_BOARD_INFO("ds1672", 0x68),
++      },
++      {
++              I2C_BOARD_INFO("ad7418", 0x28),
++      },
++      {
++              I2C_BOARD_INFO("24c08", 0x51),
++              .platform_data  = &avila_eeprom_info
++      },
++};
++
+ static void __init avila_init(void)
+ {
+       ixp4xx_sys_init();
+ 
++      /*
++       * These devices are present on all Avila models and don't need any
++       * model specific setup.
++       */
+       avila_flash_resource.start = IXP4XX_EXP_BUS_BASE(0);
+       avila_flash_resource.end =
+               IXP4XX_EXP_BUS_BASE(0) + ixp4xx_exp_bus_size - 1;
+@@ -159,7 +337,28 @@ static void __init avila_init(void)
+ 
+       platform_device_register(&avila_pata);
+ 
++              i2c_register_board_info(0, avila_i2c_board_info,
++                              ARRAY_SIZE(avila_i2c_board_info));
++}
++
++static int __init avila_model_setup(void)
++{
++      if (!machine_is_avila())
++              return 0;
++
++      if (avila_info) {
++              printk(KERN_DEBUG "Running on Gateworks Avila %s\n",
++                                                      avila_info->model);
++              avila_info->setup();
++      } else {
++              printk(KERN_INFO "Unknown/missing Avila model number"
++                                              " -- defaults will be used\n");
++              avila_gw23xx_setup();
++      }
++
++      return 0;
+ }
++late_initcall(avila_model_setup);
+ 
+ MACHINE_START(AVILA, "Gateworks Avila Network Platform")
+       /* Maintainer: Deepak Saxena <dsaxena@plexity.net> */

diff --git a/target/linux/ixp4xx/patches-2.6.32/301-avila_led.patch b/target/linux/ixp4xx/patches-2.6.32/301-avila_led.patch
new file mode 100644 (file)
index 0000000..2bd0e16
--- /dev/null
+++ b/target/linux/ixp4xx/patches-2.6.32/301-avila_led.patch
@@ -0,0 +1,171 @@
+--- a/arch/arm/mach-ixp4xx/avila-setup.c
++++ b/arch/arm/mach-ixp4xx/avila-setup.c
+@@ -24,6 +24,7 @@
+ #include <linux/i2c.h>
+ #include <linux/i2c/at24.h>
+ 
++#include <linux/leds.h>
+ #include <linux/i2c-gpio.h>
+ 
+ #include <asm/types.h>
+@@ -170,6 +171,72 @@ static struct platform_device avila_npec
+       .dev.platform_data      = &avila_npec_data,
+ };
+ 
++static struct gpio_led avila_gpio_leds[] = {
++      {
++              .name           = "user",  /* green led */
++              .gpio           = AVILA_GW23XX_LED_USER_GPIO,
++              .active_low     = 1,
++      }
++};
++
++static struct gpio_led_platform_data avila_gpio_leds_data = {
++      .num_leds               = 1,
++      .leds                   = avila_gpio_leds,
++};
++
++static struct platform_device avila_gpio_leds_device = {
++      .name                   = "leds-gpio",
++      .id                     = -1,
++      .dev.platform_data      = &avila_gpio_leds_data,
++};
++
++static struct latch_led avila_latch_leds[] = {
++      {
++              .name   = "led0",  /* green led */
++              .bit    = 0,
++      },
++      {
++              .name   = "led1",  /* green led */
++              .bit    = 1,
++      },
++      {
++              .name   = "led2",  /* green led */
++              .bit    = 2,
++      },
++      {
++              .name   = "led3",  /* green led */
++              .bit    = 3,
++      },
++      {
++              .name   = "led4",  /* green led */
++              .bit    = 4,
++      },
++      {
++              .name   = "led5",  /* green led */
++              .bit    = 5,
++      },
++      {
++              .name   = "led6",  /* green led */
++              .bit    = 6,
++      },
++      {
++              .name   = "led7",  /* green led */
++              .bit    = 7,
++      }
++};
++
++static struct latch_led_platform_data avila_latch_leds_data = {
++      .num_leds       = 8,
++      .leds           = avila_latch_leds,
++      .mem            = 0x51000000,
++};
++
++static struct platform_device avila_latch_leds_device = {
++      .name                   = "leds-latch",
++      .id                     = -1,
++      .dev.platform_data      = &avila_latch_leds_data,
++};
++
+ static struct platform_device *avila_devices[] __initdata = {
+       &avila_i2c_gpio,
+       &avila_flash,
+@@ -180,12 +247,16 @@ static void __init avila_gw23xx_setup(vo
+ {
+       platform_device_register(&avila_npeb_device);
+       platform_device_register(&avila_npec_device);
++
++      platform_device_register(&avila_gpio_leds_device);
+ }
+ 
+ static void __init avila_gw2342_setup(void)
+ {
+       platform_device_register(&avila_npeb_device);
+       platform_device_register(&avila_npec_device);
++
++      platform_device_register(&avila_gpio_leds_device);
+ }
+ 
+ static void __init avila_gw2345_setup(void)
+@@ -196,22 +267,30 @@ static void __init avila_gw2345_setup(vo
+ 
+       avila_npec_data.phy = 5; /* port 5 of the KS8995 switch */
+       platform_device_register(&avila_npec_device);
++
++      platform_device_register(&avila_gpio_leds_device);
+ }
+ 
+ static void __init avila_gw2347_setup(void)
+ {
+       platform_device_register(&avila_npeb_device);
++
++      avila_gpio_leds[0].gpio = AVILA_GW23X7_LED_USER_GPIO;
++      platform_device_register(&avila_gpio_leds_device);
+ }
+ 
+ static void __init avila_gw2348_setup(void)
+ {
+       platform_device_register(&avila_npeb_device);
+       platform_device_register(&avila_npec_device);
++
++      platform_device_register(&avila_gpio_leds_device);
+ }
+ 
+ static void __init avila_gw2353_setup(void)
+ {
+       platform_device_register(&avila_npeb_device);
++      platform_device_register(&avila_gpio_leds_device);
+ }
+ 
+ static void __init avila_gw2355_setup(void)
+@@ -222,11 +301,29 @@ static void __init avila_gw2355_setup(vo
+ 
+       avila_npec_data.phy = 16;
+       platform_device_register(&avila_npec_device);
++
++      platform_device_register(&avila_gpio_leds_device);
++
++      *IXP4XX_EXP_CS4 |= 0xbfff3c03;
++      avila_latch_leds[0].name = "RXD";
++      avila_latch_leds[1].name = "TXD";
++      avila_latch_leds[2].name = "POL";
++      avila_latch_leds[3].name = "LNK";
++      avila_latch_leds[4].name = "ERR";
++      avila_latch_leds_data.num_leds = 5;
++      avila_latch_leds_data.mem = 0x54000000;
++      platform_device_register(&avila_latch_leds_device);
+ }
+ 
+ static void __init avila_gw2357_setup(void)
+ {
+       platform_device_register(&avila_npeb_device);
++
++      avila_gpio_leds[0].gpio = AVILA_GW23X7_LED_USER_GPIO;
++      platform_device_register(&avila_gpio_leds_device);
++
++      *IXP4XX_EXP_CS1 |= 0xbfff3c03;
++      platform_device_register(&avila_latch_leds_device);
+ }
+ 
+ static struct avila_board_info avila_boards[] __initdata = {
+--- a/arch/arm/mach-ixp4xx/include/mach/avila.h
++++ b/arch/arm/mach-ixp4xx/include/mach/avila.h
+@@ -36,4 +36,6 @@
+ #define AVILA_PCI_INTC_PIN    9
+ #define AVILA_PCI_INTD_PIN    8
+ 
+-
++/* User LEDs */
++#define AVILA_GW23XX_LED_USER_GPIO    3
++#define AVILA_GW23X7_LED_USER_GPIO    4

diff --git a/target/linux/ixp4xx/patches-2.6.32/302-avila_gpio_device.patch b/target/linux/ixp4xx/patches-2.6.32/302-avila_gpio_device.patch
new file mode 100644 (file)
index 0000000..3b75a59
--- /dev/null
+++ b/target/linux/ixp4xx/patches-2.6.32/302-avila_gpio_device.patch
@@ -0,0 +1,41 @@
+--- a/arch/arm/mach-ixp4xx/avila-setup.c
++++ b/arch/arm/mach-ixp4xx/avila-setup.c
+@@ -237,10 +237,28 @@ static struct platform_device avila_latc
+       .dev.platform_data      = &avila_latch_leds_data,
+ };
+ 
++static struct resource avila_gpio_resources[] = {
++      {
++              .name   = "gpio",
++              /* FIXME: gpio mask should be model specific */
++              .start  = AVILA_GPIO_MASK,
++              .end    = AVILA_GPIO_MASK,
++              .flags  = 0,
++      },
++};
++
++static struct platform_device avila_gpio = {
++      .name                   = "GPIODEV",
++      .id                     = -1,
++      .num_resources          = ARRAY_SIZE(avila_gpio_resources),
++      .resource               = avila_gpio_resources,
++};
++
+ static struct platform_device *avila_devices[] __initdata = {
+       &avila_i2c_gpio,
+       &avila_flash,
+-      &avila_uart
++      &avila_uart,
++      &avila_gpio,
+ };
+ 
+ static void __init avila_gw23xx_setup(void)
+--- a/arch/arm/mach-ixp4xx/include/mach/avila.h
++++ b/arch/arm/mach-ixp4xx/include/mach/avila.h
+@@ -39,3 +39,6 @@
+ /* User LEDs */
+ #define AVILA_GW23XX_LED_USER_GPIO    3
+ #define AVILA_GW23X7_LED_USER_GPIO    4
++
++/* gpio mask used by platform device */
++#define AVILA_GPIO_MASK       (1 << 1) | (1 << 3) | (1 << 5) | (1 << 7) | (1 << 9)

diff --git a/target/linux/ixp4xx/patches-2.6.32/304-ixp4xx_eth_jumboframe.patch b/target/linux/ixp4xx/patches-2.6.32/304-ixp4xx_eth_jumboframe.patch
new file mode 100644 (file)
index 0000000..a9cbddc
--- /dev/null
+++ b/target/linux/ixp4xx/patches-2.6.32/304-ixp4xx_eth_jumboframe.patch
@@ -0,0 +1,80 @@
+--- a/drivers/net/arm/ixp4xx_eth.c
++++ b/drivers/net/arm/ixp4xx_eth.c
+@@ -52,7 +52,7 @@
+ 
+ #define POOL_ALLOC_SIZE               (sizeof(struct desc) * (RX_DESCS + TX_DESCS))
+ #define REGS_SIZE             0x1000
+-#define MAX_MRU                       1536 /* 0x600 */
++#define MAX_MRU                       (14320 - ETH_HLEN - ETH_FCS_LEN)
+ #define RX_BUFF_SIZE          ALIGN((NET_IP_ALIGN) + MAX_MRU, 4)
+ 
+ #define NAPI_WEIGHT           16
+@@ -1061,6 +1061,32 @@ static void destroy_queues(struct port *
+       }
+ }
+ 
++static int eth_do_change_mtu(struct net_device *dev, int mtu)
++{
++      struct port *port;
++      struct msg msg;
++      /* adjust for ethernet headers */
++      int framesize = mtu + ETH_HLEN + ETH_FCS_LEN;
++
++      port = netdev_priv(dev);
++
++      memset(&msg, 0, sizeof(msg));
++      msg.cmd = NPE_SETMAXFRAMELENGTHS;
++      msg.eth_id = port->id;
++
++      /* max rx/tx 64 byte blocks */
++      msg.byte2 = ((framesize + 63) / 64) << 8;
++      msg.byte3 = ((framesize + 63) / 64) << 8;
++
++      msg.byte4 = msg.byte6 = framesize >> 8;
++      msg.byte5 = msg.byte7 = framesize & 0xff;
++
++      if (npe_send_recv_message(port->npe, &msg, "ETH_SET_MAX_FRAME_LENGTH"))
++              return -EIO;
++
++      return 0;
++}
++
+ static int eth_open(struct net_device *dev)
+ {
+       struct port *port = netdev_priv(dev);
+@@ -1112,6 +1138,8 @@ static int eth_open(struct net_device *d
+       if (npe_send_recv_message(port->npe, &msg, "ETH_SET_FIREWALL_MODE"))
+               return -EIO;
+ 
++      eth_do_change_mtu(dev, dev->mtu);
++
+       if ((err = request_queues(port)) != 0)
+               return err;
+ 
+@@ -1251,7 +1279,26 @@ static int eth_close(struct net_device *
+       return 0;
+ }
+ 
++static int ixp_eth_change_mtu(struct net_device *dev, int mtu)
++{
++      int ret;
++
++      if (mtu > MAX_MRU)
++              return -EINVAL;
++
++      if (dev->flags & IFF_UP) {
++              ret = eth_do_change_mtu(dev, mtu);
++              if (ret < 0)
++                      return ret;
++      }
++
++      dev->mtu = mtu;
++
++      return 0;
++}
++
+ static const struct net_device_ops ixp4xx_netdev_ops = {
++      .ndo_change_mtu = ixp_eth_change_mtu,
+       .ndo_open = eth_open,
+       .ndo_stop = eth_close,
+       .ndo_start_xmit = eth_xmit,

diff --git a/target/linux/ixp4xx/patches-2.6.32/310-gtwx5717_spi_bus.patch b/target/linux/ixp4xx/patches-2.6.32/310-gtwx5717_spi_bus.patch
new file mode 100644 (file)
index 0000000..e6013d7
--- /dev/null
+++ b/target/linux/ixp4xx/patches-2.6.32/310-gtwx5717_spi_bus.patch
@@ -0,0 +1,53 @@
+--- a/arch/arm/mach-ixp4xx/gtwx5715-setup.c
++++ b/arch/arm/mach-ixp4xx/gtwx5715-setup.c
+@@ -29,6 +29,8 @@
+ #include <linux/serial_8250.h>
+ #include <linux/slab.h>
+ 
++#include <linux/spi/spi_gpio_old.h>
++
+ #include <asm/types.h>
+ #include <asm/setup.h>
+ #include <asm/memory.h>
+@@ -121,9 +123,41 @@ static struct platform_device gtwx5715_f
+       .resource       = &gtwx5715_flash_resource,
+ };
+ 
++static int gtwx5715_spi_boardinfo_setup(struct spi_board_info *bi,
++              struct spi_master *master, void *data)
++{
++
++      strlcpy(bi->modalias, "spi-ks8995", sizeof(bi->modalias));
++
++      bi->max_speed_hz = 5000000 /* Hz */;
++      bi->bus_num = master->bus_num;
++      bi->mode = SPI_MODE_0;
++
++      return 0;
++}
++
++static struct spi_gpio_platform_data gtwx5715_spi_bus_data = {
++      .pin_cs                 = GTWX5715_KSSPI_SELECT,
++      .pin_clk                = GTWX5715_KSSPI_CLOCK,
++      .pin_miso               = GTWX5715_KSSPI_RXD,
++      .pin_mosi               = GTWX5715_KSSPI_TXD,
++      .cs_activelow           = 1,
++      .no_spi_delay           = 1,
++      .boardinfo_setup        = gtwx5715_spi_boardinfo_setup,
++};
++
++static struct platform_device gtwx5715_spi_bus = {
++      .name           = "spi-gpio",
++      .id             = 0,
++      .dev            = {
++              .platform_data = &gtwx5715_spi_bus_data,
++      },
++};
++
+ static struct platform_device *gtwx5715_devices[] __initdata = {
+       &gtwx5715_uart_device,
+       &gtwx5715_flash,
++      &gtwx5715_spi_bus,
+ };
+ 
+ static void __init gtwx5715_init(void)

diff --git a/target/linux/ixp4xx/patches-2.6.32/311-gtwx5717_mac_plat_info.patch b/target/linux/ixp4xx/patches-2.6.32/311-gtwx5717_mac_plat_info.patch
new file mode 100644 (file)
index 0000000..29f3290
--- /dev/null
+++ b/target/linux/ixp4xx/patches-2.6.32/311-gtwx5717_mac_plat_info.patch
@@ -0,0 +1,40 @@
+--- a/arch/arm/mach-ixp4xx/gtwx5715-setup.c
++++ b/arch/arm/mach-ixp4xx/gtwx5715-setup.c
+@@ -154,10 +154,37 @@ static struct platform_device gtwx5715_s
+       },
+ };
+ 
++static struct eth_plat_info gtwx5715_npeb_data = {
++      .phy            = IXP4XX_ETH_PHY_MAX_ADDR,
++      .phy_mask       = 0x1e, /* ports 1-4 of the KS8995 switch */
++      .rxq            = 3,
++      .txreadyq       = 20,
++};
++
++static struct eth_plat_info gtwx5715_npec_data = {
++      .phy            = 5,    /* port 5 of the KS8995 switch */
++      .rxq            = 4,
++      .txreadyq       = 21,
++};
++
++static struct platform_device gtwx5715_npeb_device = {
++      .name                   = "ixp4xx_eth",
++      .id                     = IXP4XX_ETH_NPEB,
++      .dev.platform_data      = &gtwx5715_npeb_data,
++};
++
++static struct platform_device gtwx5715_npec_device = {
++      .name                   = "ixp4xx_eth",
++      .id                     = IXP4XX_ETH_NPEC,
++      .dev.platform_data      = &gtwx5715_npec_data,
++};
++
+ static struct platform_device *gtwx5715_devices[] __initdata = {
+       &gtwx5715_uart_device,
+       &gtwx5715_flash,
+       &gtwx5715_spi_bus,
++      &gtwx5715_npeb_device,
++      &gtwx5715_npec_device,
+ };
+ 
+ static void __init gtwx5715_init(void)

diff --git a/target/linux/ixp4xx/patches-2.6.32/312-ixp4xx_pata_optimization.patch b/target/linux/ixp4xx/patches-2.6.32/312-ixp4xx_pata_optimization.patch
new file mode 100644 (file)
index 0000000..3bf1b74
--- /dev/null
+++ b/target/linux/ixp4xx/patches-2.6.32/312-ixp4xx_pata_optimization.patch
@@ -0,0 +1,137 @@
+--- a/drivers/ata/pata_ixp4xx_cf.c
++++ b/drivers/ata/pata_ixp4xx_cf.c
+@@ -24,16 +24,58 @@
+ #include <scsi/scsi_host.h>
+ 
+ #define DRV_NAME      "pata_ixp4xx_cf"
+-#define DRV_VERSION   "0.2"
++#define DRV_VERSION   "0.3"
+ 
+ static int ixp4xx_set_mode(struct ata_link *link, struct ata_device **error)
+ {
+       struct ata_device *dev;
++      struct ixp4xx_pata_data *data = link->ap->host->dev->platform_data;
++      unsigned int pio_mask;
+ 
+       ata_for_each_dev(dev, link, ENABLED) {
+-              ata_dev_printk(dev, KERN_INFO, "configured for PIO0\n");
+-              dev->pio_mode = XFER_PIO_0;
+-              dev->xfer_mode = XFER_PIO_0;
++              if (dev->id[ATA_ID_FIELD_VALID] & (1 << 1)) {
++                      pio_mask = dev->id[ATA_ID_PIO_MODES] & 0x03;
++                      if (pio_mask & (1 << 1)) {
++                              pio_mask = 4;
++                      } else {
++                              pio_mask = 3;
++                      }
++              } else {
++                      pio_mask = (dev->id[ATA_ID_OLD_PIO_MODES] >> 8);
++              }
++
++              switch (pio_mask){
++                      case 0:
++                              ata_dev_printk(dev, KERN_INFO, "configured for PIO0\n");
++                              dev->pio_mode = XFER_PIO_0;
++                              dev->xfer_mode = XFER_PIO_0;
++                              *data->cs0_cfg = 0x8a473c03;
++                              break;
++                      case 1:
++                              ata_dev_printk(dev, KERN_INFO, "configured for PIO1\n");
++                              dev->pio_mode = XFER_PIO_1;
++                              dev->xfer_mode = XFER_PIO_1;
++                              *data->cs0_cfg = 0x86433c03;
++                              break;
++                      case 2:
++                              ata_dev_printk(dev, KERN_INFO, "configured for PIO2\n");
++                              dev->pio_mode = XFER_PIO_2;
++                              dev->xfer_mode = XFER_PIO_2;
++                              *data->cs0_cfg = 0x82413c03;
++                              break;
++                      case 3:
++                              ata_dev_printk(dev, KERN_INFO, "configured for PIO3\n");
++                              dev->pio_mode = XFER_PIO_3;
++                              dev->xfer_mode = XFER_PIO_3;
++                              *data->cs0_cfg = 0x80823c03;
++                              break;
++                      case 4:
++                              ata_dev_printk(dev, KERN_INFO, "configured for PIO4\n");
++                              dev->pio_mode = XFER_PIO_4;
++                              dev->xfer_mode = XFER_PIO_4;
++                              *data->cs0_cfg = 0x80403c03;
++                              break;
++              }
+               dev->xfer_shift = ATA_SHIFT_PIO;
+               dev->flags |= ATA_DFLAG_PIO;
+       }
+@@ -46,6 +88,7 @@ static unsigned int ixp4xx_mmio_data_xfe
+       unsigned int i;
+       unsigned int words = buflen >> 1;
+       u16 *buf16 = (u16 *) buf;
++      unsigned int pio_mask;
+       struct ata_port *ap = dev->link->ap;
+       void __iomem *mmio = ap->ioaddr.data_addr;
+       struct ixp4xx_pata_data *data = ap->host->dev->platform_data;
+@@ -53,8 +96,34 @@ static unsigned int ixp4xx_mmio_data_xfe
+       /* set the expansion bus in 16bit mode and restore
+        * 8 bit mode after the transaction.
+        */
+-      *data->cs0_cfg &= ~(0x01);
+-      udelay(100);
++      if (dev->id[ATA_ID_FIELD_VALID] & (1 << 1)){
++              pio_mask = dev->id[ATA_ID_PIO_MODES] & 0x03;
++              if (pio_mask & (1 << 1)){
++                      pio_mask = 4;
++              }else{
++                      pio_mask = 3;
++              }
++      }else{
++              pio_mask = (dev->id[ATA_ID_OLD_PIO_MODES] >> 8);
++      }
++      switch (pio_mask){
++              case 0:
++                      *data->cs0_cfg = 0xa9643c42;
++              break;
++              case 1:
++                      *data->cs0_cfg = 0x85033c42;
++              break;
++              case 2:
++                      *data->cs0_cfg = 0x80b23c42;
++              break;
++              case 3:
++                      *data->cs0_cfg = 0x80823c42;
++              break;
++              case 4:
++                      *data->cs0_cfg = 0x80403c42;
++              break;
++      }
++      udelay(5);
+ 
+       /* Transfer multiple of 2 bytes */
+       if (rw == READ)
+@@ -79,8 +148,24 @@ static unsigned int ixp4xx_mmio_data_xfe
+               words++;
+       }
+ 
+-      udelay(100);
+-      *data->cs0_cfg |= 0x01;
++      udelay(5);
++      switch (pio_mask){
++              case 0:
++                      *data->cs0_cfg = 0x8a473c03;
++              break;
++              case 1:
++                      *data->cs0_cfg = 0x86433c03;
++              break;
++              case 2:
++                      *data->cs0_cfg = 0x82413c03;
++              break;
++              case 3:
++                      *data->cs0_cfg = 0x80823c03;
++              break;
++              case 4:
++                      *data->cs0_cfg = 0x80403c03;
++              break;
++      }
+ 
+       return words << 1;
+ }

diff --git a/target/linux/ixp4xx/patches-2.6.32/401-avila_pci_dev.patch b/target/linux/ixp4xx/patches-2.6.32/401-avila_pci_dev.patch
new file mode 100644 (file)
index 0000000..3e5087f
--- /dev/null
+++ b/target/linux/ixp4xx/patches-2.6.32/401-avila_pci_dev.patch
@@ -0,0 +1,11 @@
+--- a/arch/arm/mach-ixp4xx/include/mach/avila.h
++++ b/arch/arm/mach-ixp4xx/include/mach/avila.h
+@@ -25,7 +25,7 @@
+ /*
+  * AVILA PCI IRQs
+  */
+-#define AVILA_PCI_MAX_DEV     4
++#define AVILA_PCI_MAX_DEV     6
+ #define LOFT_PCI_MAX_DEV    6
+ #define AVILA_PCI_IRQ_LINES   4
+ 

diff --git a/target/linux/ixp4xx/patches-2.6.32/402-ixp4xx_gpiolib.patch b/target/linux/ixp4xx/patches-2.6.32/402-ixp4xx_gpiolib.patch
new file mode 100644 (file)
index 0000000..6317034
--- /dev/null
+++ b/target/linux/ixp4xx/patches-2.6.32/402-ixp4xx_gpiolib.patch
@@ -0,0 +1,125 @@
+--- a/arch/arm/mach-ixp4xx/common.c
++++ b/arch/arm/mach-ixp4xx/common.c
+@@ -36,6 +36,7 @@
+ #include <asm/pgtable.h>
+ #include <asm/page.h>
+ #include <asm/irq.h>
++#include <asm/gpio.h>
+ 
+ #include <asm/mach/map.h>
+ #include <asm/mach/irq.h>
+@@ -375,12 +376,39 @@ static struct platform_device *ixp46x_de
+ unsigned long ixp4xx_exp_bus_size;
+ EXPORT_SYMBOL(ixp4xx_exp_bus_size);
+ 
++static int ixp4xx_gpio_direction_input(struct gpio_chip *chip, unsigned gpio)
++{
++      gpio_line_config(gpio, IXP4XX_GPIO_IN);
++      return 0;
++}
++EXPORT_SYMBOL(ixp4xx_gpio_direction_input);
++
++static int ixp4xx_gpio_direction_output(struct gpio_chip *chip, unsigned gpio, int level)
++{
++      gpio_line_set(gpio, level);
++      gpio_line_config(gpio, IXP4XX_GPIO_OUT);
++      return 0;
++}
++EXPORT_SYMBOL(ixp4xx_gpio_direction_output);
++
++static struct gpio_chip ixp4xx_gpio_chip = {
++      .label                  = "IXP4XX_GPIO_CHIP",
++      .direction_input        = ixp4xx_gpio_direction_input,
++      .direction_output       = ixp4xx_gpio_direction_output,
++      .get                    = gpio_get_value,
++      .set                    = gpio_set_value,
++      .base                   = 0,
++      .ngpio                  = 16,
++};
++
+ void __init ixp4xx_sys_init(void)
+ {
+       ixp4xx_exp_bus_size = SZ_16M;
+ 
+       platform_add_devices(ixp4xx_devices, ARRAY_SIZE(ixp4xx_devices));
+ 
++      gpiochip_add(&ixp4xx_gpio_chip);
++
+       if (cpu_is_ixp46x()) {
+               int region;
+ 
+--- a/arch/arm/Kconfig
++++ b/arch/arm/Kconfig
+@@ -415,6 +415,7 @@ config ARCH_IXP4XX
+       select GENERIC_GPIO
+       select GENERIC_TIME
+       select GENERIC_CLOCKEVENTS
++      select ARCH_REQUIRE_GPIOLIB
+       help
+         Support for Intel's IXP4XX (XScale) family of processors.
+ 
+--- a/arch/arm/mach-ixp4xx/include/mach/gpio.h
++++ b/arch/arm/mach-ixp4xx/include/mach/gpio.h
+@@ -27,47 +27,31 @@
+ 
+ #include <linux/kernel.h>
+ #include <mach/hardware.h>
++#include <asm-generic/gpio.h>                 /* cansleep wrappers */
+ 
+-static inline int gpio_request(unsigned gpio, const char *label)
+-{
+-      return 0;
+-}
+-
+-static inline void gpio_free(unsigned gpio)
+-{
+-      might_sleep();
+-
+-      return;
+-}
+-
+-static inline int gpio_direction_input(unsigned gpio)
+-{
+-      gpio_line_config(gpio, IXP4XX_GPIO_IN);
+-      return 0;
+-}
+-
+-static inline int gpio_direction_output(unsigned gpio, int level)
+-{
+-      gpio_line_set(gpio, level);
+-      gpio_line_config(gpio, IXP4XX_GPIO_OUT);
+-      return 0;
+-}
++#define NR_BUILTIN_GPIO 16
+ 
+ static inline int gpio_get_value(unsigned gpio)
+ {
+-      int value;
+-
+-      gpio_line_get(gpio, &value);
+-
+-      return value;
++      if (gpio < NR_BUILTIN_GPIO)
++      {
++              int value;
++              gpio_line_get(gpio, &value);
++              return value;
++      }
++      else
++              return __gpio_get_value(gpio);
+ }
+ 
+ static inline void gpio_set_value(unsigned gpio, int value)
+ {
+-      gpio_line_set(gpio, value);
++      if (gpio < NR_BUILTIN_GPIO)
++              gpio_line_set(gpio, value);
++      else
++              __gpio_set_value(gpio, value);
+ }
+ 
+-#include <asm-generic/gpio.h>                 /* cansleep wrappers */
++#define gpio_cansleep __gpio_cansleep
+ 
+ extern int gpio_to_irq(int gpio);
+ extern int irq_to_gpio(int gpio);

diff --git a/target/linux/ixp4xx/patches-2.6.32/500-usr8200_support.patch b/target/linux/ixp4xx/patches-2.6.32/500-usr8200_support.patch
new file mode 100644 (file)
index 0000000..2d78425
--- /dev/null
+++ b/target/linux/ixp4xx/patches-2.6.32/500-usr8200_support.patch
@@ -0,0 +1,342 @@
+--- a/arch/arm/mach-ixp4xx/Kconfig
++++ b/arch/arm/mach-ixp4xx/Kconfig
+@@ -97,6 +97,14 @@ config MACH_SIDEWINDER
+         Engineering Sidewinder board. For more information on this
+         platform, see http://www.adiengineering.com
+ 
++config MACH_USR8200
++      bool "USRobotics USR8200"
++      select PCI
++      help
++        Say 'Y' here if you want your kernel to support the USRobotics
++        USR8200 router board. For more information on this platform, see
++        http://openwrt.org
++
+ config MACH_COMPEX
+       bool "Compex WP18 / NP18A"
+       select PCI
+--- a/arch/arm/mach-ixp4xx/Makefile
++++ b/arch/arm/mach-ixp4xx/Makefile
+@@ -25,6 +25,7 @@ obj-pci-$(CONFIG_MACH_WRT300NV2)             += wrt
+ obj-pci-$(CONFIG_MACH_AP1000)         += ixdp425-pci.o
+ obj-pci-$(CONFIG_MACH_TW5334)         += tw5334-pci.o
+ obj-pci-$(CONFIG_MACH_MI424WR)                += mi424wr-pci.o
++obj-pci-$(CONFIG_MACH_USR8200)                += usr8200-pci.o
+ 
+ obj-y += common.o
+ 
+@@ -49,6 +50,7 @@ obj-$(CONFIG_MACH_WRT300NV2) += wrt300nv
+ obj-$(CONFIG_MACH_AP1000)     += ap1000-setup.o
+ obj-$(CONFIG_MACH_TW5334)     += tw5334-setup.o
+ obj-$(CONFIG_MACH_MI424WR)    += mi424wr-setup.o
++obj-$(CONFIG_MACH_USR8200)    += usr8200-setup.o
+ 
+ obj-$(CONFIG_PCI)             += $(obj-pci-$(CONFIG_PCI)) common-pci.o
+ obj-$(CONFIG_IXP4XX_QMGR)     += ixp4xx_qmgr.o
+--- /dev/null
++++ b/arch/arm/mach-ixp4xx/usr8200-pci.c
+@@ -0,0 +1,78 @@
++/*
++ * arch/arch/mach-ixp4xx/usr8200-pci.c
++ *
++ * PCI setup routines for USRobotics USR8200
++ *
++ * Copyright (C) 2008 Peter Denison <openwrt@marshadder.org>
++ *
++ * based on pronghorn-pci.c
++ *    Copyright (C) 2008 Imre Kaloz <kaloz@openwrt.org>
++ * based on coyote-pci.c:
++ *    Copyright (C) 2002 Jungo Software Technologies.
++ *    Copyright (C) 2003 MontaVista Softwrae, Inc.
++ *
++ * Maintainer: Peter Denison <openwrt@marshadder.org>
++ *
++ * 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 <linux/kernel.h>
++#include <linux/pci.h>
++#include <linux/init.h>
++#include <linux/irq.h>
++
++#include <asm/mach-types.h>
++#include <mach/hardware.h>
++
++#include <asm/mach/pci.h>
++
++void __init usr8200_pci_preinit(void)
++{
++      set_irq_type(IRQ_IXP4XX_GPIO7, IRQ_TYPE_LEVEL_LOW);
++      set_irq_type(IRQ_IXP4XX_GPIO8, IRQ_TYPE_LEVEL_LOW);
++      set_irq_type(IRQ_IXP4XX_GPIO9, IRQ_TYPE_LEVEL_LOW);
++      set_irq_type(IRQ_IXP4XX_GPIO10, IRQ_TYPE_LEVEL_LOW);
++      set_irq_type(IRQ_IXP4XX_GPIO11, IRQ_TYPE_LEVEL_LOW);
++
++      ixp4xx_pci_preinit();
++}
++
++static int __init usr8200_map_irq(struct pci_dev *dev, u8 slot, u8 pin)
++{
++      if (slot == 14)
++              return IRQ_IXP4XX_GPIO7;
++      else if (slot == 15)
++              return IRQ_IXP4XX_GPIO8;
++      else if (slot == 16) {
++              if (pin == 1)
++                      return IRQ_IXP4XX_GPIO11;
++              else if (pin == 2)
++                      return IRQ_IXP4XX_GPIO10;
++              else if (pin == 3)
++                      return IRQ_IXP4XX_GPIO9;
++              else
++                      return -1;
++      } else
++              return -1;
++}
++
++struct hw_pci usr8200_pci __initdata = {
++      .nr_controllers = 1,
++      .preinit        = usr8200_pci_preinit,
++      .swizzle        = pci_std_swizzle,
++      .setup          = ixp4xx_setup,
++      .scan           = ixp4xx_scan_bus,
++      .map_irq        = usr8200_map_irq,
++};
++
++int __init usr8200_pci_init(void)
++{
++      if (machine_is_usr8200())
++              pci_common_init(&usr8200_pci);
++      return 0;
++}
++
++subsys_initcall(usr8200_pci_init);
+--- /dev/null
++++ b/arch/arm/mach-ixp4xx/usr8200-setup.c
+@@ -0,0 +1,212 @@
++/*
++ * arch/arm/mach-ixp4xx/usr8200-setup.c
++ *
++ * Board setup for the USRobotics USR8200
++ *
++ * Copyright (C) 2008 Peter Denison <openwrt@marshadder.org>
++ *
++ * based on pronghorn-setup.c:
++ *    Copyright (C) 2008 Imre Kaloz <kaloz@openwrt.org>
++ * based on coyote-setup.c:
++ *      Copyright (C) 2003-2005 MontaVista Software, Inc.
++ *
++ * Author: Peter Denison <openwrt@marshadder.org>
++ */
++
++#include <linux/kernel.h>
++#include <linux/init.h>
++#include <linux/device.h>
++#include <linux/serial.h>
++#include <linux/tty.h>
++#include <linux/serial_8250.h>
++#include <linux/slab.h>
++#include <linux/types.h>
++#include <linux/memory.h>
++#include <linux/i2c-gpio.h>
++#include <linux/leds.h>
++
++#include <asm/setup.h>
++#include <mach/hardware.h>
++#include <asm/irq.h>
++#include <asm/mach-types.h>
++#include <asm/mach/arch.h>
++#include <asm/mach/flash.h>
++
++static struct flash_platform_data usr8200_flash_data = {
++      .map_name       = "cfi_probe",
++      .width          = 2,
++};
++
++static struct resource usr8200_flash_resource = {
++      .flags          = IORESOURCE_MEM,
++};
++
++static struct platform_device usr8200_flash = {
++      .name           = "IXP4XX-Flash",
++      .id             = 0,
++      .dev            = {
++              .platform_data  = &usr8200_flash_data,
++      },
++      .num_resources  = 1,
++      .resource       = &usr8200_flash_resource,
++};
++
++static struct resource usr8200_uart_resources [] = {
++      {
++              .start          = IXP4XX_UART2_BASE_PHYS,
++              .end            = IXP4XX_UART2_BASE_PHYS + 0x0fff,
++              .flags          = IORESOURCE_MEM
++      },
++      {
++              .start          = IXP4XX_UART1_BASE_PHYS,
++              .end            = IXP4XX_UART1_BASE_PHYS + 0x0fff,
++              .flags          = IORESOURCE_MEM
++      }
++};
++
++static struct plat_serial8250_port usr8200_uart_data[] = {
++      {
++              .mapbase        = IXP4XX_UART2_BASE_PHYS,
++              .membase        = (char *)IXP4XX_UART2_BASE_VIRT + REG_OFFSET,
++              .irq            = IRQ_IXP4XX_UART2,
++              .flags          = UPF_BOOT_AUTOCONF | UPF_SKIP_TEST,
++              .iotype         = UPIO_MEM,
++              .regshift       = 2,
++              .uartclk        = IXP4XX_UART_XTAL,
++      },
++      {
++              .mapbase        = IXP4XX_UART1_BASE_PHYS,
++              .membase        = (char *)IXP4XX_UART1_BASE_VIRT + REG_OFFSET,
++              .irq            = IRQ_IXP4XX_UART1,
++              .flags          = UPF_BOOT_AUTOCONF | UPF_SKIP_TEST,
++              .iotype         = UPIO_MEM,
++              .regshift       = 2,
++              .uartclk        = IXP4XX_UART_XTAL,
++      },
++      { },
++};
++
++static struct platform_device usr8200_uart = {
++      .name           = "serial8250",
++      .id             = PLAT8250_DEV_PLATFORM,
++      .dev            = {
++              .platform_data  = usr8200_uart_data,
++      },
++      .num_resources  = 2,
++      .resource       = usr8200_uart_resources,
++};
++
++static struct gpio_led usr8200_led_pin[] = {
++      {
++              .name           = "usr8200:usb1",
++              .gpio           = 0,
++              .active_low     = 1,
++      },
++      {
++              .name           = "usr8200:usb2",
++              .gpio           = 1,
++              .active_low     = 1,
++      },
++      {
++              .name           = "usr8200:ieee1394",
++              .gpio           = 2,
++              .active_low     = 1,
++      },
++      {
++              .name           = "usr8200:internal",
++              .gpio           = 3,
++              .active_low     = 1,
++      },
++      {
++              .name           = "usr8200:power",
++              .gpio           = 14,
++      }
++};
++
++static struct gpio_led_platform_data usr8200_led_data = {
++      .num_leds               = ARRAY_SIZE(usr8200_led_pin),
++      .leds                   = usr8200_led_pin,
++};
++
++static struct platform_device usr8200_led = {
++      .name                   = "leds-gpio",
++      .id                     = -1,
++      .dev.platform_data      = &usr8200_led_data,
++};
++
++static struct eth_plat_info usr8200_plat_eth[] = {
++      { /* NPEC - LAN with Marvell 88E6060 switch */
++              .phy            = IXP4XX_ETH_PHY_MAX_ADDR,
++              .phy_mask       = 0x0F0000,
++              .rxq            = 4,
++              .txreadyq       = 21,
++      }, { /* NPEB - WAN */
++              .phy            = 9,
++              .rxq            = 3,
++              .txreadyq       = 20,
++      }
++};
++
++static struct platform_device usr8200_eth[] = {
++      {
++              .name                   = "ixp4xx_eth",
++              .id                     = IXP4XX_ETH_NPEC,
++              .dev.platform_data      = usr8200_plat_eth,
++      }, {
++              .name                   = "ixp4xx_eth",
++              .id                     = IXP4XX_ETH_NPEB,
++              .dev.platform_data      = usr8200_plat_eth + 1,
++      }
++};
++
++static struct resource usr8200_rtc_resources = {
++      .flags          = IORESOURCE_MEM
++};
++
++static struct platform_device usr8200_rtc = {
++      .name           = "rtc7301",
++      .id             = 0,
++      .num_resources  = 1,
++      .resource       = &usr8200_rtc_resources,
++};
++
++static struct platform_device *usr8200_devices[] __initdata = {
++      &usr8200_flash,
++      &usr8200_uart,
++      &usr8200_led,
++      &usr8200_eth[0],
++      &usr8200_eth[1],
++      &usr8200_rtc,
++};
++
++static void __init usr8200_init(void)
++{
++      ixp4xx_sys_init();
++
++      usr8200_flash_resource.start = IXP4XX_EXP_BUS_BASE(0);
++      usr8200_flash_resource.end = IXP4XX_EXP_BUS_BASE(0) + SZ_16M - 1;
++
++      usr8200_rtc_resources.start = IXP4XX_EXP_BUS_BASE(2);
++      usr8200_rtc_resources.end = IXP4XX_EXP_BUS_BASE(2) + 0x01ff;
++
++      *IXP4XX_EXP_CS0 |= IXP4XX_FLASH_WRITABLE;
++      *IXP4XX_EXP_CS2 = 0x3fff000 | IXP4XX_EXP_BUS_SIZE(0) | IXP4XX_EXP_BUS_WR_EN |
++                        IXP4XX_EXP_BUS_CS_EN | IXP4XX_EXP_BUS_BYTE_EN;
++      *IXP4XX_GPIO_GPCLKR = 0x01100000;
++
++      /* configure button as input */
++      gpio_line_config(12, IXP4XX_GPIO_IN);
++
++      platform_add_devices(usr8200_devices, ARRAY_SIZE(usr8200_devices));
++}
++
++MACHINE_START(USR8200, "USRobotics USR8200")
++      /* Maintainer: Peter Denison <openwrt@marshadder.org> */
++      .phys_io        = IXP4XX_PERIPHERAL_BASE_PHYS,
++      .io_pg_offst    = ((IXP4XX_PERIPHERAL_BASE_VIRT) >> 18) & 0xfffc,
++      .map_io         = ixp4xx_map_io,
++      .init_irq       = ixp4xx_init_irq,
++      .timer          = &ixp4xx_timer,
++      .boot_params    = 0x0100,
++      .init_machine   = usr8200_init,
++MACHINE_END
+--- a/arch/arm/mach-ixp4xx/include/mach/uncompress.h
++++ b/arch/arm/mach-ixp4xx/include/mach/uncompress.h
+@@ -43,7 +43,7 @@ static __inline__ void __arch_decomp_set
+       if (machine_is_adi_coyote() || machine_is_gtwx5715() ||
+                        machine_is_gateway7001() || machine_is_wg302v2() ||
+                        machine_is_pronghorn() || machine_is_pronghorn_metro() || machine_is_wrt300nv2() ||
+-                       machine_is_tw5334())
++                       machine_is_tw5334() || machine_is_usr8200())
+               uart_base = (volatile u32*) IXP4XX_UART2_BASE_PHYS;
+       else
+               uart_base = (volatile u32*) IXP4XX_UART1_BASE_PHYS;