Commit b8f06b04 authored by Lai Jiangshan's avatar Lai Jiangshan Committed by Tejun Heo
Browse files

workqueue: remove useless unlock() and lock() in series 



This is no point to unlock() and then lock() the same mutex
back to back.

Signed-off-by: default avatarLai Jiangshan <laijs@linux.alibaba.com>
Signed-off-by: default avatarTejun Heo <tj@kernel.org>
parent 4f3f4cf3

kernel/workqueue.c

+0 −2
Original line number Diff line number Diff line
@@ -4403,13 +4403,11 @@ void destroy_workqueue(struct workqueue_struct *wq) 
		raw_spin_unlock_irq(&pwq->pool->lock);

	}

	mutex_unlock(&wq->mutex);

	mutex_unlock(&wq_pool_mutex);



	/*

	 * wq list is used to freeze wq, remove from list after

	 * flushing is complete in case freeze races us.

	 */

	mutex_lock(&wq_pool_mutex);

	list_del_rcu(&wq->list);

	mutex_unlock(&wq_pool_mutex);

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