From: Vasily Averin <vvs@sw.ru>
Date: Thu, 7 Dec 2006 04:37:07 +0000 (-0800)
Subject: [PATCH] VFS: extra check inside dentry_unhash()
X-Git-Tag: v2.6.20-rc1~145^2^2~176
X-Git-Url: https://err.no/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=dc168427e6250a5a24c59f34afed6538092dab42;p=linux-2.6

[PATCH] VFS: extra check inside dentry_unhash()

d_count check after dget() is always true.

Signed-off-by:	Vasily Averin <vvs@sw.ru>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
---

diff --git a/fs/namei.c b/fs/namei.c
index 61f99c1967..db1bca26d8 100644
--- a/fs/namei.c
+++ b/fs/namei.c
@@ -1998,8 +1998,7 @@ asmlinkage long sys_mkdir(const char __user *pathname, int mode)
 void dentry_unhash(struct dentry *dentry)
 {
 	dget(dentry);
-	if (atomic_read(&dentry->d_count))
-		shrink_dcache_parent(dentry);
+	shrink_dcache_parent(dentry);
 	spin_lock(&dcache_lock);
 	spin_lock(&dentry->d_lock);
 	if (atomic_read(&dentry->d_count) == 2)