linux-kernel - [PATCH tip/core/rcu 4/7] batman,rcu: convert call_rcu(neigh_node_free

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Date:	Mon,  2 May 2011 09:13:41 -0700
From:	"Paul E. McKenney" <paulmck@...ux.vnet.ibm.com>
To:	linux-kernel@...r.kernel.org
Cc:	mingo@...e.hu, laijs@...fujitsu.com, dipankar@...ibm.com,
	akpm@...ux-foundation.org, mathieu.desnoyers@...ymtl.ca,
	josh@...htriplett.org, niv@...ibm.com, tglx@...utronix.de,
	peterz@...radead.org, rostedt@...dmis.org, Valdis.Kletnieks@...edu,
	dhowells@...hat.com, eric.dumazet@...il.com, darren@...art.com,
	patches@...aro.org,
	"Paul E. McKenney" <paulmck@...ux.vnet.ibm.com>,
	Marek Lindner <lindner_marek@...oo.de>,
	Simon Wunderlich <siwu@....tu-chemnitz.de>,
	Sven Eckelmann <sven@...fation.org>
Subject: [PATCH tip/core/rcu 4/7] batman,rcu: convert call_rcu(neigh_node_free_rcu) to kfree()

The RCU callback neigh_node_free_rcu() just calls kfree(), so we can use
kfree_rcu() instead of call_rcu().

Signed-off-by: Paul E. McKenney <paulmck@...ux.vnet.ibm.com>
Cc: Marek Lindner <lindner_marek@...oo.de>
Cc: Simon Wunderlich <siwu@....tu-chemnitz.de>
Cc: Sven Eckelmann <sven@...fation.org>
---
 net/batman-adv/originator.c |   10 +---------
 1 files changed, 1 insertions(+), 9 deletions(-)

diff --git a/net/batman-adv/originator.c b/net/batman-adv/originator.c
index 0b91330..ed23a589 100644
--- a/net/batman-adv/originator.c
+++ b/net/batman-adv/originator.c
@@ -56,18 +56,10 @@ err:
 	return 0;
 }
 
-static void neigh_node_free_rcu(struct rcu_head *rcu)
-{
-	struct neigh_node *neigh_node;
-
-	neigh_node = container_of(rcu, struct neigh_node, rcu);
-	kfree(neigh_node);
-}
-
 void neigh_node_free_ref(struct neigh_node *neigh_node)
 {
 	if (atomic_dec_and_test(&neigh_node->refcount))
-		call_rcu(&neigh_node->rcu, neigh_node_free_rcu);
+		kfree_rcu(neigh_node, rcu);
 }
 
 struct neigh_node *create_neighbor(struct orig_node *orig_node,
-- 
1.7.3.2

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