linux-kernel - [GIT PULL UPDATED] workqueue for v2.6.37-rc4

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Date:	Tue, 14 Dec 2010 14:56:02 +0100
From:	Tejun Heo <tj@...nel.org>
To:	Linus Torvalds <torvalds@...ux-foundation.org>,
	lkml <linux-kernel@...r.kernel.org>
CC:	Hitoshi Mitake <mitake@....info.waseda.ac.jp>, rostedt@...dmis.org
Subject: [GIT PULL UPDATED] workqueue for v2.6.37-rc4

Hello, Linus.

I made the following changes to the tree since the original pull
request.

* Added the tree info to the MAINTAINERS entry.

* Applied Steven Rostedt's patch to drop the reversed [un]likely() on
  WORK_NOT_RUNNING tests.

  git://git.kernel.org/pub/scm/linux/kernel/git/tj/wq.git for-linus

Thanks.
---
Hitoshi Mitake (1):
      workqueue: check the allocation of system_unbound_wq

Steven Rostedt (1):
      workqueue: It is likely that WORKER_NOT_RUNNING is true

Tejun Heo (1):
      MAINTAINERS: Add workqueue entry

 MAINTAINERS        |    9 +++++++++
 kernel/workqueue.c |    7 ++++---
 2 files changed, 13 insertions(+), 3 deletions(-)

diff --git a/MAINTAINERS b/MAINTAINERS
index b3be8b3..374eecc 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -6585,6 +6585,15 @@ F:	include/linux/mfd/wm8400*
 F:	include/sound/wm????.h
 F:	sound/soc/codecs/wm*

+WORKQUEUE
+M:	Tejun Heo <tj@...nel.org>
+L:	linux-kernel@...r.kernel.org
+T:	git://git.kernel.org/pub/scm/linux/kernel/git/tj/wq.git
+S:	Maintained
+F:	include/linux/workqueue.h
+F:	kernel/workqueue.c
+F:	Documentation/workqueue.txt
+
 X.25 NETWORK LAYER
 M:	Andrew Hendry <andrew.hendry@...il.com>
 L:	linux-x25@...r.kernel.org
diff --git a/kernel/workqueue.c b/kernel/workqueue.c
index 90db1bd..e785b0f 100644
--- a/kernel/workqueue.c
+++ b/kernel/workqueue.c
@@ -661,7 +661,7 @@ void wq_worker_waking_up(struct task_struct *task, unsigned int cpu)
 {
 	struct worker *worker = kthread_data(task);

-	if (likely(!(worker->flags & WORKER_NOT_RUNNING)))
+	if (!(worker->flags & WORKER_NOT_RUNNING))
 		atomic_inc(get_gcwq_nr_running(cpu));
 }

@@ -687,7 +687,7 @@ struct task_struct *wq_worker_sleeping(struct task_struct *task,
 	struct global_cwq *gcwq = get_gcwq(cpu);
 	atomic_t *nr_running = get_gcwq_nr_running(cpu);

-	if (unlikely(worker->flags & WORKER_NOT_RUNNING))
+	if (worker->flags & WORKER_NOT_RUNNING)
 		return NULL;

 	/* this can only happen on the local cpu */
@@ -3692,7 +3692,8 @@ static int __init init_workqueues(void)
 	system_nrt_wq = alloc_workqueue("events_nrt", WQ_NON_REENTRANT, 0);
 	system_unbound_wq = alloc_workqueue("events_unbound", WQ_UNBOUND,
 					    WQ_UNBOUND_MAX_ACTIVE);
-	BUG_ON(!system_wq || !system_long_wq || !system_nrt_wq);
+	BUG_ON(!system_wq || !system_long_wq || !system_nrt_wq ||
+	       !system_unbound_wq);
 	return 0;
 }
 early_initcall(init_workqueues);
--
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