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workqueue: Use TASK_IDLE

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Workqueues don't use signals, it (ab)uses TASK_INTERRUPTIBLE to avoid
increasing the loadavg numbers. We've 'recently' introduced TASK_IDLE
for this case:

  80ed87c8a9ca ("sched/wait: Introduce TASK_NOLOAD and TASK_IDLE")

use it.

Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Signed-off-by: Tejun Heo <tj@kernel.org>
This commit is contained in:
Peter Zijlstra 2017-08-23 13:58:44 +02:00 committed by Tejun Heo
parent 9a2614916a
commit c5a94a618e
1 changed files with 2 additions and 2 deletions
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4
kernel/workqueue.c
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@ -2247,7 +2247,7 @@ sleep:
* event. * event.
*/ */
worker_enter_idle(worker); worker_enter_idle(worker);
__set_current_state(TASK_INTERRUPTIBLE); __set_current_state(TASK_IDLE);
spin_unlock_irq(&pool->lock); spin_unlock_irq(&pool->lock);
schedule(); schedule();
goto woke_up; goto woke_up;
@ -2289,7 +2289,7 @@ static int rescuer_thread(void *__rescuer)
*/ */
rescuer->task->flags |= PF_WQ_WORKER; rescuer->task->flags |= PF_WQ_WORKER;
repeat: repeat:
set_current_state(TASK_INTERRUPTIBLE); set_current_state(TASK_IDLE);
/* /*
* By the time the rescuer is requested to stop, the workqueue * By the time the rescuer is requested to stop, the workqueue