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--- a/fs/fuse/dev.c
+++ b/fs/fuse/dev.c
@@ -647,11 +647,20 @@ 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
@@ -1199,6 +1199,10 @@ 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)
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