Commit fd5081f4 authored by Zqiang's avatar Zqiang Committed by Tejun Heo
Browse files

workqueue: Remove redundant rcu_read_lock/unlock() in workqueue_congested() 



The preempt_disable/enable() has already formed RCU read crtical
section, this commit therefore remove rcu_read_lock/unlock() in
workqueue_congested().

Signed-off-by: default avatarZqiang <qiang.zhang@linux.dev>
Signed-off-by: default avatarTejun Heo <tj@kernel.org>
parent b19a97d5

kernel/workqueue.c

+0 −2
Original line number Diff line number Diff line
@@ -6046,7 +6046,6 @@ bool workqueue_congested(int cpu, struct workqueue_struct *wq) 
	struct pool_workqueue *pwq;

	bool ret;



	rcu_read_lock();

	preempt_disable();



	if (cpu == WORK_CPU_UNBOUND)
@@ -6056,7 +6055,6 @@ bool workqueue_congested(int cpu, struct workqueue_struct *wq) 
	ret = !list_empty(&pwq->inactive_works);



	preempt_enable();

	rcu_read_unlock();



	return ret;

}