Commit 8e8eb730 authored Nov 06, 2017 by Frederic Weisbecker Committed by Ingo Molnar Nov 08, 2017

workqueue: Use lockdep to assert IRQs are disabled/enabled



Use lockdep to check that IRQs are enabled or disabled as expected. This
way the sanity check only shows overhead when concurrency correctness
debug code is enabled.

Signed-off-by: Frederic Weisbecker <frederic@kernel.org>
Acked-by: Thomas Gleixner <tglx@linutronix.de>
Acked-by: Tejun Heo <tj@kernel.org>
Cc: David S . Miller <davem@davemloft.net>
Cc: Lai Jiangshan <jiangshanlai@gmail.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Link: http://lkml.kernel.org/r/1509980490-4285-4-git-send-email-frederic@kernel.org


Signed-off-by: Ingo Molnar <mingo@kernel.org>

parent f71b74bc

kernel/workqueue.c

+1 −1

Original line number	Diff line number	Diff line
		@@ -1376,7 +1376,7 @@ static void __queue_work(int cpu, struct workqueue_struct *wq,
		* queued or lose PENDING. Grabbing PENDING and queueing should
		* happen with IRQ disabled.
		*/
		WARN_ON_ONCE(!irqs_disabled());
		lockdep_assert_irqs_disabled();

		debug_work_activate(work);

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