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| author |   Lai Jiangshan <laijs@linux.alibaba.com> | 2020-05-29 06:59:02 +0000 |
|---|---|---|
| committer |   Tejun Heo <tj@kernel.org> | 2020-05-29 10:25:23 -0400 |
| commit | b8f06b0444ec146e3ae98caac8039c77e5308ce2 (patch) | |
| tree | 2b0337a366ac25868dc4043f1955fc32dc51e9a8 /kernel/workqueue.c | |
| parent | workqueue: void unneeded requeuing the pwq in rescuer thread (diff) | |
| download | linux-dev-b8f06b0444ec146e3ae98caac8039c77e5308ce2.tar.xz linux-dev-b8f06b0444ec146e3ae98caac8039c77e5308ce2.zip | |
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: Lai Jiangshan <laijs@linux.alibaba.com>
Signed-off-by: Tejun Heo <tj@kernel.org>
Diffstat (limited to 'kernel/workqueue.c')
| -rw-r--r-- | kernel/workqueue.c | 2 |
1 files changed, 0 insertions, 2 deletions
diff --git a/kernel/workqueue.c b/kernel/workqueue.c index 6feefc65d332..c667ca5aed61 100644 --- a/kernel/workqueue.c +++ b/kernel/workqueue.c @@ -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); |