[PATCH] eCryptfs: Fix handling of lower d_count

Fix the use of dget/dput calls to balance out on the lower filesystem.

Signed-off-by: Michael Halcrow <mhalcrow@us.ibm.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

1 files changed, 7 insertions, 1 deletions

diff --git a/fs/ecryptfs/dentry.c b/fs/ecryptfs/dentry.c
index f0d2a433242b..0b9992ab990f 100644
--- a/fs/ecryptfs/dentry.c
+++ b/fs/ecryptfs/dentry.c
@@ -24,6 +24,7 @@
 
 #include <linux/dcache.h>
 #include <linux/namei.h>
+#include <linux/mount.h>
 #include "ecryptfs_kernel.h"
 
 /**
@@ -76,8 +77,13 @@ static void ecryptfs_d_release(struct dentry *dentry)
         if (ecryptfs_dentry_to_private(dentry))
                 kmem_cache_free(ecryptfs_dentry_info_cache,
                                 ecryptfs_dentry_to_private(dentry));
-        if (lower_dentry)
+        if (lower_dentry) {
+                struct vfsmount *lower_mnt =
+                        ecryptfs_dentry_to_lower_mnt(dentry);
+
+                mntput(lower_mnt);
                 dput(lower_dentry);
+        }
         return;
 }