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

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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: Zqiang <qiang.zhang@linux.dev>
Signed-off-by: Tejun Heo <tj@kernel.org>
This commit is contained in:
Zqiang
2025-09-04 19:31:32 +08:00
committed by Tejun Heo
parent b19a97d57c
commit fd5081f4ef
1 changed files with 0 additions and 2 deletions
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2
kernel/workqueue.c
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@@ -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;
}