Skip updating workqueues with __WQ_DESTROYING bit set when updating
global unbound cpumask to avoid unnecessary work and other complications.

Signed-off-by: Waiman Long <longman@redhat.com>
---
 kernel/workqueue.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/kernel/workqueue.c b/kernel/workqueue.c
index ffb625db9771..7ef393f4012e 100644
--- a/kernel/workqueue.c
+++ b/kernel/workqueue.c
@@ -6313,7 +6313,7 @@ static int workqueue_apply_unbound_cpumask(const cpumask_var_t unbound_cpumask)
 	lockdep_assert_held(&wq_pool_mutex);
 
 	list_for_each_entry(wq, &workqueues, list) {
-		if (!(wq->flags & WQ_UNBOUND))
+		if (!(wq->flags & WQ_UNBOUND) || (wq->flags & __WQ_DESTROYING))
 			continue;
 
 		/* creating multiple pwqs breaks ordering guarantee */
-- 
2.39.3

Hello,

On Sat, Feb 03, 2024 at 10:43:30AM -0500, Waiman Long wrote:
> Skip updating workqueues with __WQ_DESTROYING bit set when updating
> global unbound cpumask to avoid unnecessary work and other complications.
> 
> Signed-off-by: Waiman Long <longman@redhat.com>

Applied to wq/for-6.9.

Thanks.

-- 
tejun