From 537c6017cca753b1714009795af5f7122cac80e2 Mon Sep 17 00:00:00 2001 From: Hauke Mehrtens Date: Sun, 13 Mar 2011 19:25:24 +0000 Subject: [PATCH] brcm47xx: add workaround for fuse again. This closes #4754 SVN-Revision: 26141 --- .../301-kmod-fuse-dcache-bug-r4k.patch | 6 +-- .../302-kmod-fuse-dcache-bug-fuse.patch | 46 +++++++++++++++++++ .../301-kmod-fuse-dcache-bug-r4k.patch | 6 +-- .../302-kmod-fuse-dcache-bug-fuse.patch | 46 +++++++++++++++++++ 4 files changed, 94 insertions(+), 10 deletions(-) create mode 100644 target/linux/brcm47xx/patches-2.6.36/302-kmod-fuse-dcache-bug-fuse.patch create mode 100644 target/linux/brcm47xx/patches-2.6.37/302-kmod-fuse-dcache-bug-fuse.patch diff --git a/target/linux/brcm47xx/patches-2.6.36/301-kmod-fuse-dcache-bug-r4k.patch b/target/linux/brcm47xx/patches-2.6.36/301-kmod-fuse-dcache-bug-r4k.patch index 62f699298c2..70b379c617a 100644 --- a/target/linux/brcm47xx/patches-2.6.36/301-kmod-fuse-dcache-bug-r4k.patch +++ b/target/linux/brcm47xx/patches-2.6.36/301-kmod-fuse-dcache-bug-r4k.patch @@ -18,7 +18,7 @@ unsigned long addr, unsigned long pfn) { struct flush_cache_page_args args; -@@ -1469,3 +1469,11 @@ void __cpuinit r4k_cache_init(void) +@@ -1469,3 +1469,7 @@ void __cpuinit r4k_cache_init(void) coherency_setup(); #endif } @@ -26,7 +26,3 @@ +/* fuse package DCACHE BUG patch exports */ +void (*fuse_flush_cache_all)(void) = r4k___flush_cache_all; +EXPORT_SYMBOL(fuse_flush_cache_all); -+ -+void (*fuse_flush_cache_page)(struct vm_area_struct *vma, unsigned long page, -+ unsigned long pfn) = r4k_flush_cache_page; -+EXPORT_SYMBOL(fuse_flush_cache_page); diff --git a/target/linux/brcm47xx/patches-2.6.36/302-kmod-fuse-dcache-bug-fuse.patch b/target/linux/brcm47xx/patches-2.6.36/302-kmod-fuse-dcache-bug-fuse.patch new file mode 100644 index 00000000000..a546b1bc24b --- /dev/null +++ b/target/linux/brcm47xx/patches-2.6.36/302-kmod-fuse-dcache-bug-fuse.patch @@ -0,0 +1,46 @@ +--- a/fs/fuse/dev.c ++++ b/fs/fuse/dev.c +@@ -639,11 +639,20 @@ static int fuse_copy_fill(struct fuse_co + return lock_request(cs->fc, cs->req); + } + ++#ifdef DCACHE_BUG ++extern void (*fuse_flush_cache_all)(void); ++#endif ++ + /* Do as much copy to/from userspace buffer as we can */ + static int fuse_copy_do(struct fuse_copy_state *cs, void **val, unsigned *size) + { + unsigned ncpy = min(*size, cs->len); + if (val) { ++#ifdef DCACHE_BUG ++ // patch from mailing list, it is very important, otherwise, ++ // can't mount, or ls mount point will hang ++ fuse_flush_cache_all(); ++#endif + if (cs->write) + memcpy(cs->buf, *val, ncpy); + else +--- a/fs/fuse/fuse_i.h ++++ b/fs/fuse/fuse_i.h +@@ -8,6 +8,7 @@ + + #ifndef _FS_FUSE_I_H + #define _FS_FUSE_I_H ++#define DCACHE_BUG + + #include + #include +--- a/fs/fuse/inode.c ++++ b/fs/fuse/inode.c +@@ -1203,6 +1203,10 @@ static int __init fuse_init(void) + printk(KERN_INFO "fuse init (API version %i.%i)\n", + FUSE_KERNEL_VERSION, FUSE_KERNEL_MINOR_VERSION); + ++#ifdef DCACHE_BUG ++ printk("fuse init DCACHE_BUG workaround enabled\n"); ++#endif ++ + INIT_LIST_HEAD(&fuse_conn_list); + res = fuse_fs_init(); + if (res) diff --git a/target/linux/brcm47xx/patches-2.6.37/301-kmod-fuse-dcache-bug-r4k.patch b/target/linux/brcm47xx/patches-2.6.37/301-kmod-fuse-dcache-bug-r4k.patch index d16460ca355..919a2091ca3 100644 --- a/target/linux/brcm47xx/patches-2.6.37/301-kmod-fuse-dcache-bug-r4k.patch +++ b/target/linux/brcm47xx/patches-2.6.37/301-kmod-fuse-dcache-bug-r4k.patch @@ -18,7 +18,7 @@ unsigned long addr, unsigned long pfn) { struct flush_cache_page_args args; -@@ -1468,3 +1468,11 @@ void __cpuinit r4k_cache_init(void) +@@ -1468,3 +1468,7 @@ void __cpuinit r4k_cache_init(void) coherency_setup(); #endif } @@ -26,7 +26,3 @@ +/* fuse package DCACHE BUG patch exports */ +void (*fuse_flush_cache_all)(void) = r4k___flush_cache_all; +EXPORT_SYMBOL(fuse_flush_cache_all); -+ -+void (*fuse_flush_cache_page)(struct vm_area_struct *vma, unsigned long page, -+ unsigned long pfn) = r4k_flush_cache_page; -+EXPORT_SYMBOL(fuse_flush_cache_page); diff --git a/target/linux/brcm47xx/patches-2.6.37/302-kmod-fuse-dcache-bug-fuse.patch b/target/linux/brcm47xx/patches-2.6.37/302-kmod-fuse-dcache-bug-fuse.patch new file mode 100644 index 00000000000..5c3839f2b6a --- /dev/null +++ b/target/linux/brcm47xx/patches-2.6.37/302-kmod-fuse-dcache-bug-fuse.patch @@ -0,0 +1,46 @@ +--- a/fs/fuse/dev.c ++++ b/fs/fuse/dev.c +@@ -639,11 +639,20 @@ static int fuse_copy_fill(struct fuse_co + return lock_request(cs->fc, cs->req); + } + ++#ifdef DCACHE_BUG ++extern void (*fuse_flush_cache_all)(void); ++#endif ++ + /* Do as much copy to/from userspace buffer as we can */ + static int fuse_copy_do(struct fuse_copy_state *cs, void **val, unsigned *size) + { + unsigned ncpy = min(*size, cs->len); + if (val) { ++#ifdef DCACHE_BUG ++ // patch from mailing list, it is very important, otherwise, ++ // can't mount, or ls mount point will hang ++ fuse_flush_cache_all(); ++#endif + if (cs->write) + memcpy(cs->buf, *val, ncpy); + else +--- a/fs/fuse/fuse_i.h ++++ b/fs/fuse/fuse_i.h +@@ -8,6 +8,7 @@ + + #ifndef _FS_FUSE_I_H + #define _FS_FUSE_I_H ++#define DCACHE_BUG + + #include + #include +--- a/fs/fuse/inode.c ++++ b/fs/fuse/inode.c +@@ -1202,6 +1202,10 @@ static int __init fuse_init(void) + printk(KERN_INFO "fuse init (API version %i.%i)\n", + FUSE_KERNEL_VERSION, FUSE_KERNEL_MINOR_VERSION); + ++#ifdef DCACHE_BUG ++ printk("fuse init DCACHE_BUG workaround enabled\n"); ++#endif ++ + INIT_LIST_HEAD(&fuse_conn_list); + res = fuse_fs_init(); + if (res) -- 2.30.2