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 (file)
--- 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;
        }