target/linux/brcm47xx/patches-3.0/302-kmod-fuse-dcache-bug-fuse.patch

   1 --- a/fs/fuse/dev.c
   2 +++ b/fs/fuse/dev.c
   3 @@ -647,11 +647,20 @@ static int fuse_copy_fill(struct fuse_co
   4         return lock_request(cs->fc, cs->req);
   5  }
   6
   7 +#ifdef DCACHE_BUG
   8 +extern void (*fuse_flush_cache_all)(void);
   9 +#endif
  10 +
  11  /* Do as much copy to/from userspace buffer as we can */
  12  static int fuse_copy_do(struct fuse_copy_state *cs, void **val, unsigned *size)
  13  {
  14         unsigned ncpy = min(*size, cs->len);
  15         if (val) {
  16 +#ifdef DCACHE_BUG
  17 +               // patch from mailing list, it is very important, otherwise,
  18 +               // can't mount, or ls mount point will hang
  19 +               fuse_flush_cache_all();
  20 +#endif
  21                 if (cs->write)
  22                         memcpy(cs->buf, *val, ncpy);
  23                 else
  24 --- a/fs/fuse/fuse_i.h
  25 +++ b/fs/fuse/fuse_i.h
  26 @@ -8,6 +8,7 @@
  27
  28  #ifndef _FS_FUSE_I_H
  29  #define _FS_FUSE_I_H
  30 +#define DCACHE_BUG
  31
  32  #include <linux/fuse.h>
  33  #include <linux/fs.h>
  34 --- a/fs/fuse/inode.c
  35 +++ b/fs/fuse/inode.c
  36 @@ -1202,6 +1202,10 @@ static int __init fuse_init(void)
  37         printk(KERN_INFO "fuse init (API version %i.%i)\n",
  38                FUSE_KERNEL_VERSION, FUSE_KERNEL_MINOR_VERSION);
  39
  40 +#ifdef DCACHE_BUG
  41 +       printk("fuse init DCACHE_BUG workaround enabled\n");
  42 +#endif
  43 +
  44         INIT_LIST_HEAD(&fuse_conn_list);
  45         res = fuse_fs_init();
  46         if (res)