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authorHauke Mehrtens <hauke@hauke-m.de>2011-03-13 19:25:24 +0000
committerHauke Mehrtens <hauke@hauke-m.de>2011-03-13 19:25:24 +0000
commit537c6017cca753b1714009795af5f7122cac80e2 (patch)
treed3086f1467ce103ab6b1e8be236f33edc492ab5b /target/linux/brcm47xx/patches-2.6.37
parentc33f2efbb277ae2881df98f3556ba8e5b3df8e32 (diff)
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brcm47xx: add workaround for fuse again.
This closes #4754 SVN-Revision: 26141
Diffstat (limited to 'target/linux/brcm47xx/patches-2.6.37')
-rw-r--r--target/linux/brcm47xx/patches-2.6.37/301-kmod-fuse-dcache-bug-r4k.patch6
-rw-r--r--target/linux/brcm47xx/patches-2.6.37/302-kmod-fuse-dcache-bug-fuse.patch46
2 files changed, 47 insertions, 5 deletions
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 d16460ca35..919a2091ca 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 0000000000..5c3839f2b6
--- /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 <linux/fuse.h>
+ #include <linux/fs.h>
+--- 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)