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authorFrederic Weisbecker <frederic@kernel.org>2017-11-06 18:01:26 +0300
committerIngo Molnar <mingo@kernel.org>2017-11-08 13:13:52 +0300
commit3c7169a3bf8216a56761a8edf775072dd36a00a0 (patch)
tree740c2f1915d340e03357ec889014c325f9b7a4d4 /kernel/irq_work.c
parenta934d4d15f040cdd254350e7270b35cc7521e12e (diff)
downloadlinux-3c7169a3bf8216a56761a8edf775072dd36a00a0.tar.xz
irq_work: 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> 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> Cc: Tejun Heo <tj@kernel.org> Link: http://lkml.kernel.org/r/1509980490-4285-11-git-send-email-frederic@kernel.org Signed-off-by: Ingo Molnar <mingo@kernel.org>
Diffstat (limited to 'kernel/irq_work.c')
-rw-r--r--kernel/irq_work.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/kernel/irq_work.c b/kernel/irq_work.c
index bcf107ce0854..899579657a0a 100644
--- a/kernel/irq_work.c
+++ b/kernel/irq_work.c
@@ -188,7 +188,7 @@ void irq_work_tick(void)
*/
void irq_work_sync(struct irq_work *work)
{
- WARN_ON_ONCE(irqs_disabled());
+ lockdep_assert_irqs_enabled();
while (work->flags & IRQ_WORK_BUSY)
cpu_relax();