net,rcu: convert call_rcu(ipv6_mc_socklist_reclaim) to kfree_rcu()

The rcu callback ipv6_mc_socklist_reclaim() just calls a kfree(),
so we use kfree_rcu() instead of the call_rcu(ipv6_mc_socklist_reclaim).

Signed-off-by: Lai Jiangshan <laijs@cn.fujitsu.com>
Acked-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
Reviewed-by: Josh Triplett <josh@joshtriplett.org>

diff --git a/net/ipv6/mcast.c b/net/ipv6/mcast.c
index 76b8937..f2d98ca 100644 (file)
--- a/net/ipv6/mcast.c
+++ b/net/ipv6/mcast.c
@@ -201,10 +201,6 @@ int ipv6_sock_mc_join(struct sock *sk, int ifindex, const struct in6_addr *addr)
        return 0;
 }
 
-static void ipv6_mc_socklist_reclaim(struct rcu_head *head)
-{
-       kfree(container_of(head, struct ipv6_mc_socklist, rcu));
-}
 /*
  *     socket leave on multicast group
  */
@@ -239,7 +235,7 @@ int ipv6_sock_mc_drop(struct sock *sk, int ifindex, const struct in6_addr *addr)
                                (void) ip6_mc_leave_src(sk, mc_lst, NULL);
                        rcu_read_unlock();
                        atomic_sub(sizeof(*mc_lst), &sk->sk_omem_alloc);
-                       call_rcu(&mc_lst->rcu, ipv6_mc_socklist_reclaim);
+                       kfree_rcu(mc_lst, rcu);
                        return 0;
                }
        }
@@ -307,7 +303,7 @@ void ipv6_sock_mc_close(struct sock *sk)
                rcu_read_unlock();
 
                atomic_sub(sizeof(*mc_lst), &sk->sk_omem_alloc);
-               call_rcu(&mc_lst->rcu, ipv6_mc_socklist_reclaim);
+               kfree_rcu(mc_lst, rcu);
 
                spin_lock(&ipv6_sk_mc_lock);
        }