Commit 92b69f50 authored Jun 03, 2014 by Lai Jiangshan Committed by Tejun Heo Jun 19, 2014

workqueue: sanity check pool->cpu in wq_worker_sleeping()



In theory, pool->cpu is equals to @cpu in wq_worker_sleeping() after
worker->flags is checked.

And "pool->cpu != cpu" sanity check will help us if something wrong.

Signed-off-by: Lai Jiangshan <laijs@cn.fujitsu.com>
Signed-off-by: Tejun Heo <tj@kernel.org>

parent b62c0751

kernel/workqueue.c

+1 −1

Original line number	Diff line number	Diff line
		@@ -843,7 +843,7 @@ struct task_struct wq_worker_sleeping(struct task_struct task, int cpu)
		pool = worker->pool;

		/* this can only happen on the local cpu */
		if (WARN_ON_ONCE(cpu != raw_smp_processor_id()))
		if (WARN_ON_ONCE(cpu != raw_smp_processor_id() \|\| pool->cpu != cpu))
		return NULL;

		/*

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