If we can find a valid worker that is serving the specified work at
the moment then the worker itself is enough to ensure reentrance and
workqueue doesn't matter here because it is permitted for a work to
requeue itself either on different cpu or numa node or even on another
workqueue.
Fixes: c9178087acd7 ("workqueue: perform non-reentrancy test when queueing to unbound workqueues too")
Fixes: 18aa9effad4a ("workqueue: implement WQ_NON_REENTRANT")
Signed-off-by: Hillf Danton <hdanton@xxxxxxxx>
---
--- f/kernel/workqueue.c
+++ g/kernel/workqueue.c
@@ -1433,7 +1433,7 @@ retry:
worker = find_worker_executing_work(last_pool, work);
- if (worker && worker->current_pwq->wq == wq) {
+ if (worker) {
pwq = worker->current_pwq;
} else {
/* meh... not running there, queue here */
