From: Wei Yongjun <yongjun_wei@trendmicro.com.cn>
Date: Fri, 16 Aug 2013 23:32:09 +0000 (+0800)
Subject: vxlan: using kfree_rcu() to simplify the code
X-Git-Tag: accepted/tizen/common/20141203.182822~1569^2~261
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=dcdc7a5929842ca0df91eb50de9edebbb5e4e7d1;p=platform%2Fkernel%2Flinux-arm64.git

vxlan: using kfree_rcu() to simplify the code

The callback function of call_rcu() just calls a kfree(), so we
can use kfree_rcu() instead of call_rcu() + callback function.

Signed-off-by: Wei Yongjun <yongjun_wei@trendmicro.com.cn>
Acked-by: Stephen Hemminger <stephen@networkplumber.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
---

diff --git a/drivers/net/vxlan.c b/drivers/net/vxlan.c
index b9401b5..3b21aca 100644
--- a/drivers/net/vxlan.c
+++ b/drivers/net/vxlan.c
@@ -542,12 +542,6 @@ static int vxlan_fdb_create(struct vxlan_dev *vxlan,
 	return 0;
 }
 
-static void vxlan_fdb_free_rdst(struct rcu_head *head)
-{
-	struct vxlan_rdst *rd = container_of(head, struct vxlan_rdst, rcu);
-	kfree(rd);
-}
-
 static void vxlan_fdb_free(struct rcu_head *head)
 {
 	struct vxlan_fdb *f = container_of(head, struct vxlan_fdb, rcu);
@@ -687,7 +681,7 @@ static int vxlan_fdb_delete(struct ndmsg *ndm, struct nlattr *tb[],
 	 */
 	if (rd && !list_is_singular(&f->remotes)) {
 		list_del_rcu(&rd->list);
-		call_rcu(&rd->rcu, vxlan_fdb_free_rdst);
+		kfree_rcu(rd, rcu);
 		goto out;
 	}