linux-kernel - [PATCH 1/2] workqueue: move WORKER_REBIND clearing in rebind

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Message-ID: <20120905061233.GA3195@dhcp-172-17-108-109.mtv.corp.google.com>
Date:	Tue, 4 Sep 2012 23:12:33 -0700
From:	Tejun Heo <tj@...nel.org>
To:	Lai Jiangshan <laijs@...fujitsu.com>, linux-kernel@...r.kernel.org
Subject: [PATCH 1/2] workqueue: move WORKER_REBIND clearing in
 rebind_workers() to the end of the function

This doesn't make any functional difference and is purely to help the
next patch to be simpler.

Signed-off-by: Tejun Heo <tj@...nel.org>
Cc: Lai Jiangshan <laijs@...fujitsu.com>
---
Here are the split patches.  Will push these through wq/for-3.6-fixes.

Thanks.

 kernel/workqueue.c |   26 +++++++++++++-------------
 1 file changed, 13 insertions(+), 13 deletions(-)

--- a/kernel/workqueue.c
+++ b/kernel/workqueue.c
@@ -1422,19 +1422,7 @@ retry:
 		goto retry;
 	}
 
-	/*
-	 * All idle workers are rebound and waiting for %WORKER_REBIND to
-	 * be cleared inside idle_worker_rebind().  Clear and release.
-	 * Clearing %WORKER_REBIND from this foreign context is safe
-	 * because these workers are still guaranteed to be idle.
-	 */
-	for_each_worker_pool(pool, gcwq)
-		list_for_each_entry(worker, &pool->idle_list, entry)
-			worker->flags &= ~WORKER_REBIND;
-
-	wake_up_all(&gcwq->rebind_hold);
-
-	/* rebind busy workers */
+	/* all idle workers are rebound, rebind busy workers */
 	for_each_busy_worker(worker, i, pos, gcwq) {
 		struct work_struct *rebind_work = &worker->rebind_work;
 		unsigned long worker_flags = worker->flags;
@@ -1454,6 +1442,18 @@ retry:
 			    worker->scheduled.next,
 			    work_color_to_flags(WORK_NO_COLOR));
 	}
+
+	/*
+	 * All idle workers are rebound and waiting for %WORKER_REBIND to
+	 * be cleared inside idle_worker_rebind().  Clear and release.
+	 * Clearing %WORKER_REBIND from this foreign context is safe
+	 * because these workers are still guaranteed to be idle.
+	 */
+	for_each_worker_pool(pool, gcwq)
+		list_for_each_entry(worker, &pool->idle_list, entry)
+			worker->flags &= ~WORKER_REBIND;
+
+	wake_up_all(&gcwq->rebind_hold);
 }
 
 static struct worker *alloc_worker(void)
--
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