linux-kernel - [PATCH tip/core/rcu 08/47] tcm_fc: Convert call_rcu() to kfree_rcu(), drop ft_tport_rcu

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Date:	Fri,  3 Feb 2012 17:44:43 -0800
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,
	fweisbec@...il.com, patches@...aro.org,
	"Paul E. McKenney" <paul.mckenney@...aro.org>,
	"Paul E. McKenney" <paulmck@...ux.vnet.ibm.com>,
	"Nicholas A. Bellinger" <nab@...ux-iscsi.org>,
	Jiri Kosina <jkosina@...e.cz>, Jesper Juhl <jj@...osbits.net>,
	linux-scsi@...r.kernel.org, target-devel@...r.kernel.org
Subject: [PATCH tip/core/rcu 08/47] tcm_fc: Convert call_rcu() to kfree_rcu(), drop ft_tport_rcu_free()

From: "Paul E. McKenney" <paul.mckenney@...aro.org>

The call_rcu() in ft_tport_delete() invokes ft_tport_rcu_free(),
which just does a kfree().  So convert the call_rcu() to kfree_rcu(),
allowing ft_tport_rcu_free() to be eliminated.

Signed-off-by: Paul E. McKenney <paul.mckenney@...aro.org>
Signed-off-by: Paul E. McKenney <paulmck@...ux.vnet.ibm.com>
Cc: "Nicholas A. Bellinger" <nab@...ux-iscsi.org>
Cc: Jiri Kosina <jkosina@...e.cz>
Cc: Jesper Juhl <jj@...osbits.net>
Cc: linux-scsi@...r.kernel.org
Cc: target-devel@...r.kernel.org
---
 drivers/target/tcm_fc/tfc_sess.c |   12 +-----------
 1 files changed, 1 insertions(+), 11 deletions(-)

diff --git a/drivers/target/tcm_fc/tfc_sess.c b/drivers/target/tcm_fc/tfc_sess.c
index 4c0507c..eff512b 100644
--- a/drivers/target/tcm_fc/tfc_sess.c
+++ b/drivers/target/tcm_fc/tfc_sess.c
@@ -86,16 +86,6 @@ static struct ft_tport *ft_tport_create(struct fc_lport *lport)
 }
 
 /*
- * Free tport via RCU.
- */
-static void ft_tport_rcu_free(struct rcu_head *rcu)
-{
-	struct ft_tport *tport = container_of(rcu, struct ft_tport, rcu);
-
-	kfree(tport);
-}
-
-/*
  * Delete a target local port.
  * Caller holds ft_lport_lock.
  */
@@ -114,7 +104,7 @@ static void ft_tport_delete(struct ft_tport *tport)
 		tpg->tport = NULL;
 		tport->tpg = NULL;
 	}
-	call_rcu(&tport->rcu, ft_tport_rcu_free);
+	kfree_rcu(tport, rcu);
 }
 
 /*
-- 
1.7.8

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