linux-kernel - [PATCH] workqueue: declare system_highpri

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Date:	Thu, 22 May 2014 16:42:41 +0800
From:	Lai Jiangshan <laijs@...fujitsu.com>
To:	<linux-kernel@...r.kernel.org>
CC:	Tejun Heo <tj@...nel.org>, Lai Jiangshan <laijs@...fujitsu.com>
Subject: [PATCH] workqueue: declare system_highpri_wq

system_highpri_wq is exported to modules via EXPORT_SYMBOL_GPL(),
but it was forgotten to be declared in workqueue.h. So we add the declaration
and a short description for it.

Signed-off-by: Lai Jiangshan <laijs@...fujitsu.com>
---
 include/linux/workqueue.h |    4 ++++
 1 files changed, 4 insertions(+), 0 deletions(-)

diff --git a/include/linux/workqueue.h b/include/linux/workqueue.h
index d93d28b..7a8800c 100644
--- a/include/linux/workqueue.h
+++ b/include/linux/workqueue.h
@@ -340,6 +340,9 @@ enum {
  * short queue flush time.  Don't queue works which can run for too
  * long.
  *
+ * system_highpri_wq is similar to system_wq but services for work items
+ * which need to be processed with high priority.
+ *
  * system_long_wq is similar to system_wq but may host long running
  * works.  Queue flushing might take relatively long.
  *
@@ -358,6 +361,7 @@ enum {
  * 'wq_power_efficient' is disabled.  See WQ_POWER_EFFICIENT for more info.
  */
 extern struct workqueue_struct *system_wq;
+extern struct workqueue_struct *system_highpri_wq;
 extern struct workqueue_struct *system_long_wq;
 extern struct workqueue_struct *system_unbound_wq;
 extern struct workqueue_struct *system_freezable_wq;
-- 
1.7.4.4

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