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| author | Andrew Liu <shengping.liu@windriver.com> | 2008-05-01 15:35:14 +0400 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2008-05-01 19:04:02 +0400 |
| commit | 8a3e77cc212f3bc8eccc95e0d046405cf2a02764 (patch) | |
| tree | a5812f9b077d7faf00f82969a9bd766e97ecfd97 /kernel/workqueue.c | |
| parent | 55e462b05b5df4fd113c4a304c4f487d44b0898e (diff) | |
| download | linux-8a3e77cc212f3bc8eccc95e0d046405cf2a02764.tar.xz | |
workqueue: remove redundant function invocation
timer_stats_timer_set_start_info is invoked twice, additionally, the
invocation of this function can be moved to where it is only called when a
delay is really required.
Signed-off-by: Andrew Liu <shengping.liu@windriver.com>
Cc: Pavel Machek <pavel@ucw.cz>
Cc: Ingo Molnar <mingo@elte.hu>
Cc: Oleg Nesterov <oleg@tv-sign.ru>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'kernel/workqueue.c')
| -rw-r--r-- | kernel/workqueue.c | 6 |
1 files changed, 2 insertions, 4 deletions
diff --git a/kernel/workqueue.c b/kernel/workqueue.c index 721093a22561..29fc39f1029c 100644 --- a/kernel/workqueue.c +++ b/kernel/workqueue.c @@ -195,7 +195,6 @@ static void delayed_work_timer_fn(unsigned long __data) int queue_delayed_work(struct workqueue_struct *wq, struct delayed_work *dwork, unsigned long delay) { - timer_stats_timer_set_start_info(&dwork->timer); if (delay == 0) return queue_work(wq, &dwork->work); @@ -219,11 +218,12 @@ int queue_delayed_work_on(int cpu, struct workqueue_struct *wq, struct timer_list *timer = &dwork->timer; struct work_struct *work = &dwork->work; - timer_stats_timer_set_start_info(&dwork->timer); if (!test_and_set_bit(WORK_STRUCT_PENDING, work_data_bits(work))) { BUG_ON(timer_pending(timer)); BUG_ON(!list_empty(&work->entry)); + timer_stats_timer_set_start_info(&dwork->timer); + /* This stores cwq for the moment, for the timer_fn */ set_wq_data(work, wq_per_cpu(wq, raw_smp_processor_id())); timer->expires = jiffies + delay; @@ -564,7 +564,6 @@ EXPORT_SYMBOL(schedule_work); int schedule_delayed_work(struct delayed_work *dwork, unsigned long delay) { - timer_stats_timer_set_start_info(&dwork->timer); return queue_delayed_work(keventd_wq, dwork, delay); } EXPORT_SYMBOL(schedule_delayed_work); @@ -581,7 +580,6 @@ EXPORT_SYMBOL(schedule_delayed_work); int schedule_delayed_work_on(int cpu, struct delayed_work *dwork, unsigned long delay) { - timer_stats_timer_set_start_info(&dwork->timer); return queue_delayed_work_on(cpu, keventd_wq, dwork, delay); } EXPORT_SYMBOL(schedule_delayed_work_on); |