Messages in this thread Patch in this message | | | From | Lai Jiangshan <> | Subject | [PATCH 4/4] workqueue: remove useless unlock() and lock() in series | Date | Fri, 29 May 2020 06:59:02 +0000 |
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This is no point to unlock() and then lock() the same mutex back to back.
Signed-off-by: Lai Jiangshan <laijs@linux.alibaba.com> --- kernel/workqueue.c | 2 -- 1 file changed, 2 deletions(-)
diff --git a/kernel/workqueue.c b/kernel/workqueue.c index c0cbe0de95d0..415893cfb074 100644 --- a/kernel/workqueue.c +++ b/kernel/workqueue.c @@ -4383,13 +4383,11 @@ void destroy_workqueue(struct workqueue_struct *wq) 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); -- 2.20.1
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