From: Lai Jiangshan <jiangshan.ljs@antgroup.com>
If the pwq does not need rescue (normal workers have been created or
become available), the rescuer can immediately move on to other stalled
pwqs.
Signed-off-by: Lai Jiangshan <jiangshan.ljs@antgroup.com>
---
kernel/workqueue.c | 4 ++++
1 file changed, 4 insertions(+)
diff --git a/kernel/workqueue.c b/kernel/workqueue.c
index c60584a39fc9..932581d93edb 100644
--- a/kernel/workqueue.c
+++ b/kernel/workqueue.c
@@ -3444,6 +3444,10 @@ static bool assign_rescuer_work(struct pool_workqueue *pwq, struct worker *rescu
struct worker_pool *pool = pwq->pool;
struct work_struct *work, *n;
+ /* need rescue? */
+ if (!pwq->nr_active || !need_to_create_worker(pool))
+ return false;
+
/*
* Slurp in all works issued via this workqueue and
* process'em.
--
2.19.1.6.gb485710b