linux-kernel - [PATCH tip/core/rcu 69/86] net/mac80211,rcu: convert call_rcu(work_free_rcu) to kfree

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Message-Id: <1304256126-26015-69-git-send-email-paulmck@linux.vnet.ibm.com>
Date:	Sun,  1 May 2011 06:21:49 -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 69/86] net/mac80211,rcu: convert call_rcu(work_free_rcu) to kfree_rcu()

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

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

Signed-off-by: Lai Jiangshan <laijs@...fujitsu.com>
Acked-by: "John W. Linville" <linville@...driver.com>
Signed-off-by: Paul E. McKenney <paulmck@...ux.vnet.ibm.com>
---
 net/mac80211/work.c |   10 +---------
 1 files changed, 1 insertions(+), 9 deletions(-)

diff --git a/net/mac80211/work.c b/net/mac80211/work.c
index e73c8ca..ac35496 100644
--- a/net/mac80211/work.c
+++ b/net/mac80211/work.c
@@ -65,17 +65,9 @@ static void run_again(struct ieee80211_local *local,
 		mod_timer(&local->work_timer, timeout);
 }
 
-static void work_free_rcu(struct rcu_head *head)
-{
-	struct ieee80211_work *wk =
-		container_of(head, struct ieee80211_work, rcu_head);
-
-	kfree(wk);
-}
-
 void free_work(struct ieee80211_work *wk)
 {
-	call_rcu(&wk->rcu_head, work_free_rcu);
+	kfree_rcu(wk, rcu_head);
 }
 
 static int ieee80211_compatible_rates(const u8 *supp_rates, int supp_rates_len,
-- 
1.7.3.2

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