workqueue: Move the position of debug_work_activate() in __queue_work()
authorZqiang <qiang.zhang@windriver.com>
Thu, 18 Feb 2021 03:16:49 +0000 (11:16 +0800)
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Wed, 14 Apr 2021 06:42:10 +0000 (08:42 +0200)
[ Upstream commit 0687c66b5f666b5ad433f4e94251590d9bc9d10e ]

The debug_work_activate() is called on the premise that
the work can be inserted, because if wq be in WQ_DRAINING
status, insert work may be failed.

Fixes: e41e704bc4f4 ("workqueue: improve destroy_workqueue() debuggability")
Signed-off-by: Zqiang <qiang.zhang@windriver.com>
Reviewed-by: Lai Jiangshan <jiangshanlai@gmail.com>
Signed-off-by: Tejun Heo <tj@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
kernel/workqueue.c

index 1d99c52..1e2ca74 100644 (file)
@@ -1409,7 +1409,6 @@ static void __queue_work(int cpu, struct workqueue_struct *wq,
         */
        lockdep_assert_irqs_disabled();
 
-       debug_work_activate(work);
 
        /* if draining, only works from the same workqueue are allowed */
        if (unlikely(wq->flags & __WQ_DRAINING) &&
@@ -1491,6 +1490,7 @@ retry:
                worklist = &pwq->delayed_works;
        }
 
+       debug_work_activate(work);
        insert_work(pwq, work, worklist, work_flags);
 
 out: