linux-kernel - [PATCH tip/core/rcu 68/86] net,rcu: convert call_rcu(wq_free_rcu) to kfree

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Date:	Sun,  1 May 2011 06:21:48 -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 68/86] net,rcu: convert call_rcu(wq_free_rcu) to kfree_rcu()

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

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

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/socket.c |   11 +----------
 1 files changed, 1 insertions(+), 10 deletions(-)

diff --git a/net/socket.c b/net/socket.c
index 310d16b..c2ed7c9 100644
--- a/net/socket.c
+++ b/net/socket.c
@@ -263,15 +263,6 @@ static struct inode *sock_alloc_inode(struct super_block *sb)
 	return &ei->vfs_inode;
 }
 
-
-
-static void wq_free_rcu(struct rcu_head *head)
-{
-	struct socket_wq *wq = container_of(head, struct socket_wq, rcu);
-
-	kfree(wq);
-}
-
 static void sock_destroy_inode(struct inode *inode)
 {
 	struct socket_alloc *ei;
@@ -279,7 +270,7 @@ static void sock_destroy_inode(struct inode *inode)
 
 	ei = container_of(inode, struct socket_alloc, vfs_inode);
 	wq = rcu_dereference_protected(ei->socket.wq, 1);
-	call_rcu(&wq->rcu, wq_free_rcu);
+	kfree_rcu(wq, rcu);
 	kmem_cache_free(sock_inode_cachep, ei);
 }
 
-- 
1.7.3.2

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