From: Zqiang <[email protected]>
If the rescuer worker belong to freezable wq, when this wq is
frozen, the rescuer also need to be frozen.
Signed-off-by: Zqiang <[email protected]>
---
kernel/workqueue.c | 6 ++++++
1 file changed, 6 insertions(+)
diff --git a/kernel/workqueue.c b/kernel/workqueue.c
index 104e3ef04e33..ccd6ee8f3dc6 100644
--- a/kernel/workqueue.c
+++ b/kernel/workqueue.c
@@ -2476,6 +2476,9 @@ static int rescuer_thread(void *__rescuer)
* doesn't participate in concurrency management.
*/
set_pf_worker(true);
+
+ if (wq->flags & WQ_FREEZABLE)
+ set_freezable();
repeat:
set_current_state(TASK_IDLE);
@@ -2504,6 +2507,9 @@ static int rescuer_thread(void *__rescuer)
raw_spin_unlock_irq(&wq_mayday_lock);
+ if (!kthread_should_stop())
+ try_to_freeze();
+
worker_attach_to_pool(rescuer, pool);
raw_spin_lock_irq(&pool->lock);
--
2.17.1