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-rw-r--r--kernel/workqueue.c12
1 files changed, 7 insertions, 5 deletions
diff --git a/kernel/workqueue.c b/kernel/workqueue.c
index ce60bb5d12fb..6cbdc22f8ec7 100644
--- a/kernel/workqueue.c
+++ b/kernel/workqueue.c
@@ -1125,7 +1125,9 @@ EXPORT_SYMBOL_GPL(delayed_work_timer_fn);
* @dwork: work to queue
* @delay: number of jiffies to wait before queueing
*
- * Returns %false if @work was already on a queue, %true otherwise.
+ * Returns %false if @work was already on a queue, %true otherwise. If
+ * @delay is zero and @dwork is idle, it will be scheduled for immediate
+ * execution.
*/
bool queue_delayed_work_on(int cpu, struct workqueue_struct *wq,
struct delayed_work *dwork, unsigned long delay)
@@ -1135,6 +1137,9 @@ bool queue_delayed_work_on(int cpu, struct workqueue_struct *wq,
bool ret = false;
unsigned long flags;
+ if (!delay)
+ return queue_work_on(cpu, wq, &dwork->work);
+
/* read the comment in __queue_work() */
local_irq_save(flags);
@@ -1185,14 +1190,11 @@ EXPORT_SYMBOL_GPL(queue_delayed_work_on);
* @dwork: delayable work to queue
* @delay: number of jiffies to wait before queueing
*
- * Returns %false if @work was already on a queue, %true otherwise.
+ * Equivalent to queue_delayed_work_on() but tries to use the local CPU.
*/
bool queue_delayed_work(struct workqueue_struct *wq,
struct delayed_work *dwork, unsigned long delay)
{
- if (delay == 0)
- return queue_work(wq, &dwork->work);
-
return queue_delayed_work_on(WORK_CPU_UNBOUND, wq, dwork, delay);
}
EXPORT_SYMBOL_GPL(queue_delayed_work);