From: Lai Jiangshan <laijs@cn.fujitsu.com>
Date: Fri, 18 Mar 2011 04:00:50 +0000 (+0800)
Subject: net,rcu: convert call_rcu(ipv6_mc_socklist_reclaim) to kfree_rcu()
X-Git-Url: http://git.lede-project.org./?a=commitdiff_plain;h=e3cbf28fa61456bd2f0ba39846ffd905257eb4b0;p=openwrt%2Fstaging%2Fblogic.git

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 76b893771e6e..f2d98ca7588a 100644
--- 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);
 	}