From: Jens Axboe <axboe@fb.com>
Date: Mon, 7 Dec 2015 17:43:45 +0000 (-0700)
Subject: workqueue: grab sw->lock for flag manipulation
X-Git-Tag: fio-2.2.13~42
X-Git-Url: https://git.kernel.dk/?p=fio.git;a=commitdiff_plain;h=b7d0bbf11651b03d1fb97f664e12c430d7a43def

workqueue: grab sw->lock for flag manipulation

For consistency, should not matter in the shutdown path.

Signed-off-by: Jens Axboe <axboe@fb.com>
---

diff --git a/workqueue.c b/workqueue.c
index 7cd83bfd..27570b2a 100644
--- a/workqueue.c
+++ b/workqueue.c
@@ -388,7 +388,9 @@ void workqueue_exit(struct workqueue *wq)
 			sw = &wq->workers[i];
 			if (sw->flags & SW_F_ACCOUNTED)
 				continue;
+			pthread_mutex_lock(&sw->lock);
 			sw->flags |= SW_F_ACCOUNTED;
+			pthread_mutex_unlock(&sw->lock);
 			shutdown_worker(sw, &sum_cnt);
 			shutdown++;
 		}