linux-kernel - [PATCH 5/5] ipc: remove unnecessary work pending test

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Message-ID: <5229B779.4000704@huawei.com>
Date:	Fri, 6 Sep 2013 19:07:37 +0800
From:	Xie XiuQi <xiexiuqi@...wei.com>
To:	Jonathan Cameron <jic23@....ac.uk>,
	Dmitry Torokhov <dmitry.torokhov@...il.com>,
	Dmitry Torokhov <dtor@...l.ru>,
	Thomas Gleixner <tglx@...utronix.de>,
	Andres Salomon <dilinger@...ued.net>,
	Chris Ball <cjb@...top.org>,
	Jon Nettleton <jon.nettleton@...il.com>,
	Andrew Morton <akpm@...ux-foundation.org>,
	Nadia Derbey <Nadia.Derbey@...l.net>
CC:	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	Li Bin <huawei.libin@...wei.com>, Tejun Heo <tj@...nel.org>
Subject: [PATCH 5/5] ipc: remove unnecessary work pending test

Remove unnecessary work pending test before calling schedule_work().
It has been tested in queue_work_on() already. No functional changed.

Signed-off-by: Xie XiuQi <xiexiuqi@...wei.com>
Cc: Nadia Derbey <Nadia.Derbey@...l.net>
Cc: Tejun Heo <tj@...nel.org>
---
 ipc/util.c | 4 +---
 1 file changed, 1 insertion(+), 3 deletions(-)

diff --git a/ipc/util.c b/ipc/util.c
index 4704223..f9105ed 100644
--- a/ipc/util.c
+++ b/ipc/util.c
@@ -67,10 +67,8 @@ static int ipc_memory_callback(struct notifier_block *self,
 		 * In order not to keep the lock on the hotplug memory chain
 		 * for too long, queue a work item that will, when waken up,
 		 * activate the ipcns notification chain.
-		 * No need to keep several ipc work items on the queue.
 		 */
-		if (!work_pending(&ipc_memory_wq))
-			schedule_work(&ipc_memory_wq);
+		schedule_work(&ipc_memory_wq);
 		break;
 	case MEM_GOING_ONLINE:
 	case MEM_GOING_OFFLINE:
-- 
1.8.2.2



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