linux-kernel - [PATCH tip/core/rcu 49/86] net,rcu: convert call_rcu(__gen_kill_estimator) to kfree

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Date:	Sun,  1 May 2011 06:21:29 -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>
Subject: [PATCH tip/core/rcu 49/86] net,rcu: convert call_rcu(__gen_kill_estimator) to kfree_rcu()

From: Lai Jiangshan <laijs@...fujitsu.com>

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

Signed-off-by: Lai Jiangshan <laijs@...fujitsu.com>
Acked-by: David S. Miller <davem@...emloft.net>
Signed-off-by: Paul E. McKenney <paulmck@...ux.vnet.ibm.com>
---
 net/core/gen_estimator.c |    9 +--------
 1 files changed, 1 insertions(+), 8 deletions(-)

diff --git a/net/core/gen_estimator.c b/net/core/gen_estimator.c
index 7c23733..43b03dd 100644
--- a/net/core/gen_estimator.c
+++ b/net/core/gen_estimator.c
@@ -249,13 +249,6 @@ int gen_new_estimator(struct gnet_stats_basic_packed *bstats,
 }
 EXPORT_SYMBOL(gen_new_estimator);
 
-static void __gen_kill_estimator(struct rcu_head *head)
-{
-	struct gen_estimator *e = container_of(head,
-					struct gen_estimator, e_rcu);
-	kfree(e);
-}
-
 /**
  * gen_kill_estimator - remove a rate estimator
  * @bstats: basic statistics
@@ -279,7 +272,7 @@ void gen_kill_estimator(struct gnet_stats_basic_packed *bstats,
 		write_unlock(&est_lock);
 
 		list_del_rcu(&e->list);
-		call_rcu(&e->e_rcu, __gen_kill_estimator);
+		kfree_rcu(e, e_rcu);
 	}
 	spin_unlock_bh(&est_tree_lock);
 }
-- 
1.7.3.2

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