audit_tree,rcu: Convert call_rcu(__put_tree) to kfree_rcu()

The rcu callback __put_tree() just calls a kfree(),
so we use kfree_rcu() instead of the call_rcu(__put_tree).

Signed-off-by: Lai Jiangshan <laijs@cn.fujitsu.com>
Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
Cc: Al Viro <viro@zeniv.linux.org.uk>
Cc: Eric Paris <eparis@redhat.com>
Reviewed-by: Josh Triplett <josh@joshtriplett.org>

1 files changed, 1 insertions, 7 deletions

diff --git a/kernel/audit_tree.c b/kernel/audit_tree.c
index e99dda04b126..5bf0790497e7 100644
--- a/kernel/audit_tree.c
+++ b/kernel/audit_tree.c
@@ -93,16 +93,10 @@ static inline void get_tree(struct audit_tree *tree)
         atomic_inc(&tree->count);
 }
 
-static void __put_tree(struct rcu_head *rcu)
-{
-        struct audit_tree *tree = container_of(rcu, struct audit_tree, head);
-        kfree(tree);
-}
-
 static inline void put_tree(struct audit_tree *tree)
 {
         if (atomic_dec_and_test(&tree->count))
-                call_rcu(&tree->head, __put_tree);
+                kfree_rcu(tree, head);
 }
 
 /* to avoid bringing the entire thing in audit.h */