remove 2.6.34 support

[openwrt.git] / target / linux / brcm47xx / patches-2.6.34 / 302-kmod-fuse-dcache-bug-fuse.patch

diff --git a/target/linux/brcm47xx/patches-2.6.34/302-kmod-fuse-dcache-bug-fuse.patch b/target/linux/brcm47xx/patches-2.6.34/302-kmod-fuse-dcache-bug-fuse.patch
deleted file mode 100644 (file)
index d6c0b3a..0000000
--- a/target/linux/brcm47xx/patches-2.6.34/302-kmod-fuse-dcache-bug-fuse.patch
+++ /dev/null
@@ -1,82 +0,0 @@
---- a/fs/fuse/dev.c
-+++ b/fs/fuse/dev.c
-@@ -533,6 +533,11 @@ static void fuse_copy_finish(struct fuse
-       }
- }
- 
-+#ifdef DCACHE_BUG
-+extern void (*fuse_flush_cache_all)(void);
-+extern void (*fuse_flush_cache_page)(struct vm_area_struct *vma, unsigned long page, unsigned long pfn);
-+#endif
-+
- /*
-  * Get another pagefull of userspace buffer, and map it to kernel
-  * address space, and lock request
-@@ -541,6 +546,9 @@ static int fuse_copy_fill(struct fuse_co
- {
-       unsigned long offset;
-       int err;
-+#ifdef DCACHE_BUG
-+      struct vm_area_struct *vma;
-+#endif
- 
-       unlock_request(cs->fc, cs->req);
-       fuse_copy_finish(cs);
-@@ -552,14 +560,22 @@ static int fuse_copy_fill(struct fuse_co
-               cs->nr_segs--;
-       }
-       down_read(&current->mm->mmap_sem);
-+#ifndef DCACHE_BUG
-       err = get_user_pages(current, current->mm, cs->addr, 1, cs->write, 0,
-                            &cs->pg, NULL);
-+#else
-+      err = get_user_pages(current, current->mm, cs->addr, 1, cs->write, 0,
-+                           &cs->pg, &vma);
-+#endif
-       up_read(&current->mm->mmap_sem);
-       if (err < 0)
-               return err;
-       BUG_ON(err != 1);
-       offset = cs->addr % PAGE_SIZE;
-       cs->mapaddr = kmap_atomic(cs->pg, KM_USER0);
-+#ifdef DCACHE_BUG
-+      fuse_flush_cache_page(vma, cs->addr, page_to_pfn(cs->pg));
-+#endif
-       cs->buf = cs->mapaddr + offset;
-       cs->len = min(PAGE_SIZE - offset, cs->seglen);
-       cs->seglen -= cs->len;
-@@ -573,6 +589,11 @@ static int fuse_copy_do(struct fuse_copy
- {
-       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
-@@ -1201,6 +1201,10 @@ 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 enabled\n");
-+#endif
-+
-       INIT_LIST_HEAD(&fuse_conn_list);
-       res = fuse_fs_init();
-       if (res)