workqueue: make queueing functions return bool
All queueing functions return 1 on success, 0 if the work item was
already pending. Update them to return bool instead. This signifies
better that they don't return 0 / -errno.
This is cleanup and doesn't cause any functional difference.
While at it, fix comment opening for schedule_work_on().
Signed-off-by: Tejun Heo <tj@kernel.org>
diff --git a/include/linux/workqueue.h b/include/linux/workqueue.h
index 5970342..278dc5d 100644
--- a/include/linux/workqueue.h
+++ b/include/linux/workqueue.h
@@ -365,24 +365,24 @@
extern void destroy_workqueue(struct workqueue_struct *wq);
-extern int queue_work_on(int cpu, struct workqueue_struct *wq,
+extern bool queue_work_on(int cpu, struct workqueue_struct *wq,
struct work_struct *work);
-extern int queue_work(struct workqueue_struct *wq, struct work_struct *work);
-extern int queue_delayed_work_on(int cpu, struct workqueue_struct *wq,
+extern bool queue_work(struct workqueue_struct *wq, struct work_struct *work);
+extern bool queue_delayed_work_on(int cpu, struct workqueue_struct *wq,
struct delayed_work *work, unsigned long delay);
-extern int queue_delayed_work(struct workqueue_struct *wq,
+extern bool queue_delayed_work(struct workqueue_struct *wq,
struct delayed_work *work, unsigned long delay);
extern void flush_workqueue(struct workqueue_struct *wq);
extern void drain_workqueue(struct workqueue_struct *wq);
extern void flush_scheduled_work(void);
-extern int schedule_work_on(int cpu, struct work_struct *work);
-extern int schedule_work(struct work_struct *work);
-extern int schedule_delayed_work_on(int cpu, struct delayed_work *work,
- unsigned long delay);
-extern int schedule_delayed_work(struct delayed_work *work,
- unsigned long delay);
+extern bool schedule_work_on(int cpu, struct work_struct *work);
+extern bool schedule_work(struct work_struct *work);
+extern bool schedule_delayed_work_on(int cpu, struct delayed_work *work,
+ unsigned long delay);
+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);