From: Andrew Morton <akpm@osdl.org>
Cc: Kirill Korotaev <dev@sw.ru>
Signed-off-by: Andrew Morton <akpm@osdl.org>
---
fs/dcache.c | 6 +++++-
1 files changed, 5 insertions(+), 1 deletion(-)
diff -puN fs/dcache.c~fix-of-dcache-race-leading-to-busy-inodes-on-umount-fix fs/dcache.c
--- 25/fs/dcache.c~fix-of-dcache-race-leading-to-busy-inodes-on-umount-fix 2005-05-11 19:34:13.000000000 -0700
+++ 25-akpm/fs/dcache.c 2005-05-11 19:34:13.000000000 -0700
@@ -269,8 +269,12 @@ kill_it: {
/*drops the locks, at that point nobody can reach this dentry */
dentry_iput(dentry);
d_free(dentry);
- if (dentry == parent)
+ if (unlikely(dentry == parent)) {
+ spin_lock(&dcache_lock);
+ dcache_shrinker_del(&lds);
+ spin_unlock(&dcache_lock);
return;
+ }
dentry = parent;
spin_lock(&dcache_lock);
dcache_shrinker_del(&lds);
_