[PATCH 14/17] security,rcu: convert call_rcu(whitelist_item_free) to kfree_rcu()

[Lai Jiangshan]

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

Signed-off-by: Lai Jiangshan <laijs at cn.fujitsu.com>
---
 security/device_cgroup.c |   10 +---------
 1 files changed, 1 insertions(+), 9 deletions(-)

diff --git a/security/device_cgroup.c b/security/device_cgroup.c
index 8d9c48f..e886ab5 100644
--- a/security/device_cgroup.c
+++ b/security/device_cgroup.c
@@ -126,14 +126,6 @@ static int dev_whitelist_add(struct dev_cgroup *dev_cgroup,
 	return 0;
 }
 
-static void whitelist_item_free(struct rcu_head *rcu)
-{
-	struct dev_whitelist_item *item;
-
-	item = container_of(rcu, struct dev_whitelist_item, rcu);
-	kfree(item);
-}
-
 /*
  * called under devcgroup_mutex
  */
@@ -156,7 +148,7 @@ remove:
 		walk->access &= ~wh->access;
 		if (!walk->access) {
 			list_del_rcu(&walk->list);
-			call_rcu(&walk->rcu, whitelist_item_free);
+			kfree_rcu(walk, rcu);
 		}
 	}
 }
-- 
1.7.4