linux-kernel - [PATCH 1/3] workqueue: define mod_scheduled_delayed_work[

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Date:	Wed, 27 Feb 2013 16:59:10 +0530
From:	Viresh Kumar <viresh.kumar@...aro.org>
To:	rjw@...k.pl
Cc:	cpufreq@...r.kernel.org, linux-pm@...r.kernel.org,
	linux-kernel@...r.kernel.org, linaro-kernel@...ts.linaro.org,
	robin.randhawa@....com, Steve.Bannister@....com,
	Liviu.Dudau@....com, charles.garcia-tobin@....com,
	rickard.andersson@...ricsson.com, fabio.baltieri@...aro.org,
	Viresh Kumar <viresh.kumar@...aro.org>,
	Tejun Heo <tj@...nel.org>
Subject: [PATCH 1/3] workqueue: define mod_scheduled_delayed_work[_on]() helpers

The only difference between schedule_delayed_work[_on]() and
queue_delayed_work[_on]() is the workqueue, work is scheduled on. We may need to
modify the delay for works queued with schedule_delayed_work[_on]() calls and
thus adding these helpers.

First users of these new helpers is cpufreq governors which need to modify the
delay for its works.

Cc: Tejun Heo <tj@...nel.org>
Signed-off-by: Viresh Kumar <viresh.kumar@...aro.org>
---
 include/linux/workqueue.h | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/include/linux/workqueue.h b/include/linux/workqueue.h
index 2b58905..864c2b3 100644
--- a/include/linux/workqueue.h
+++ b/include/linux/workqueue.h
@@ -412,6 +412,7 @@ extern bool schedule_delayed_work_on(int cpu, struct delayed_work *work,
 extern bool schedule_delayed_work(struct delayed_work *work,
 				  unsigned long delay);
 extern int schedule_on_each_cpu(work_func_t func);
+
 extern int keventd_up(void);
 
 int execute_in_process_context(work_func_t fn, struct execute_work *);
@@ -465,6 +466,11 @@ static inline long work_on_cpu(unsigned int cpu, long (*fn)(void *), void *arg)
 long work_on_cpu(unsigned int cpu, long (*fn)(void *), void *arg);
 #endif /* CONFIG_SMP */
 
+#define mod_scheduled_delayed_work_on(cpu, dwork, delay)	\
+	mod_delayed_work_on(cpu, system_wq, dwork, delay)
+#define mod_scheduled_delayed_work(dwork, delay)		\
+	mod_delayed_work(system_wq, dwork, delay)
+
 #ifdef CONFIG_FREEZER
 extern void freeze_workqueues_begin(void);
 extern bool freeze_workqueues_busy(void);
-- 
1.7.12.rc2.18.g61b472e


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