linux-kernel - [PATCH V2] workqueue: Implement delayed_work

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Date:   Wed, 24 May 2017 22:06:25 +0200
From:   Alex Naidis <alex.naidis@...ux.com>
To:     Tejun Heo <tj@...nel.org>
Cc:     Alex Naidis <alex.naidis@...ux.com>, linux-kernel@...r.kernel.org
Subject: [PATCH V2] workqueue: Implement delayed_work_busy()

work_busy() was available for regular work only,
however it is useful for delayed work too.

This implements a variant of work_busy() for
delayed work.

CC: linux-kernel@...r.kernel.org
Signed-off-by: Alex Naidis <alex.naidis@...ux.com>
---
 include/linux/workqueue.h | 9 +++++++++
 1 file changed, 9 insertions(+)

diff --git a/include/linux/workqueue.h b/include/linux/workqueue.h
index c102ef6..b7ae6ac 100644
--- a/include/linux/workqueue.h
+++ b/include/linux/workqueue.h
@@ -603,6 +603,15 @@ static inline bool schedule_delayed_work(struct delayed_work *dwork,
 	return queue_delayed_work(system_wq, dwork, delay);
 }
 
+/**
+ * delayed_work_busy - See work_busy()
+ * @work: the delayed work to be tested
+ */
+static inline unsigned int delayed_work_busy(struct delayed_work *dwork)
+{
+	return work_busy(&dwork->work);
+}
+
 #ifndef CONFIG_SMP
 static inline long work_on_cpu(int cpu, long (*fn)(void *), void *arg)
 {
-- 
2.7.4