mnt: Use hlist_move_list in namespace_unlock

Small cleanup to make the code more readable and maintainable.

Signed-off-by: Eric Biederman <ebiederm@xmission.com>

1 files changed, 5 insertions, 7 deletions

diff --git a/fs/namespace.c b/fs/namespace.c
index 82ef1405260e..e1ee57206eef 100644
--- a/fs/namespace.c
+++ b/fs/namespace.c
@@ -1298,17 +1298,15 @@ static HLIST_HEAD(unmounted);	/* protected by namespace_sem */
 
 static void namespace_unlock(void)
 {
-        struct hlist_head head = unmounted;
+        struct hlist_head head;
 
-        if (likely(hlist_empty(&head))) {
-                up_write(&namespace_sem);
-                return;
-        }
+        hlist_move_list(&unmounted, &head);
 
-        head.first->pprev = &head.first;
-        INIT_HLIST_HEAD(&unmounted);
         up_write(&namespace_sem);
 
+        if (likely(hlist_empty(&head)))
+                return;
+
         synchronize_rcu();
 
         group_pin_kill(&head);