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List: linux-kernel
Subject: Re: Wireless regression in workqueue: use mod_delayed_work() instead of __cancel + queue
From: Tejun Heo <tj () kernel ! org>
Date: 2012-11-30 22:56:19
Message-ID: 20121130225619.GD6021 () htj ! dyndns ! org
[Download RAW message or body]
Hey, again.
Can you please test whether the following patch makes any difference?
Thanks!
diff --git a/kernel/workqueue.c b/kernel/workqueue.c
index 042d221..26368ef 100644
--- a/kernel/workqueue.c
+++ b/kernel/workqueue.c
@@ -1477,7 +1477,10 @@ bool mod_delayed_work_on(int cpu, struct workqueue_struct *wq,
} while (unlikely(ret == -EAGAIN));
if (likely(ret >= 0)) {
- __queue_delayed_work(cpu, wq, dwork, delay);
+ if (!delay)
+ __queue_work(cpu, wq, &dwork->work);
+ else
+ __queue_delayed_work(cpu, wq, dwork, delay);
local_irq_restore(flags);
}
--
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