[PATCH] dcookies.c: use proper refcounting functions

Dcookies shouldn't play with the internals of dentry and vfsmnt
refcounting.  It defeats grepping, and is prone to break if implementation
details change.

In addition the function doesn't even seem to be performance critical: it
calls kmem_cache_alloc().

Signed-off-by: Miklos Szeredi <miklos@szeredi.hu>
Acked-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

1 files changed, 2 insertions, 4 deletions

diff --git a/fs/dcookies.c b/fs/dcookies.c
index 581aac959cd3..02aa0ddc582a 100644
--- a/fs/dcookies.c
+++ b/fs/dcookies.c
@@ -94,12 +94,10 @@ static struct dcookie_struct * alloc_dcookie(struct dentry * dentry,
         if (!dcs)
                 return NULL;
 
-        atomic_inc(&dentry->d_count);
-        atomic_inc(&vfsmnt->mnt_count);
         dentry->d_cookie = dcs;
 
-        dcs->dentry = dentry;
-        dcs->vfsmnt = vfsmnt;
+        dcs->dentry = dget(dentry);
+        dcs->vfsmnt = mntget(vfsmnt);
         hash_dcookie(dcs);
 
         return dcs;