[Devel] [PATCH 2.6.19-rc3] VFS: extra check inside dentry_unhash()

Vasily Averin vvs at sw.ru
Wed Nov 1 02:37:33 PST 2006


From:	Vasily Averin <vvs at sw.ru>

d_count check after dget() is always true

Signed-off-by:	Vasily Averin <vvs at sw.ru>

--- linux-2.6.19-rc3-mm1/fs/namei.c.duhsh	2006-10-30 14:20:19.000000000 +0300
+++ linux-2.6.19-rc3-mm1/fs/namei.c	2006-11-01 13:17:17.000000000 +0300
@@ -1993,8 +1993,7 @@ asmlinkage long sys_mkdir(const char __u
 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)





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