[PATCH 12/14] posix-cpu-timers: Use lockdep to assert IRQs are disabled/enabled

[Frederic Weisbecker]

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 <frede...@kernel.org>
Cc: Peter Zijlstra <pet...@infradead.org>
Cc: Ingo Molnar <mi...@kernel.org>
Cc: Thomas Gleixner <t...@linutronix.de>
Cc: Paul E. McKenney <paul...@linux.vnet.ibm.com>
---
 kernel/time/posix-cpu-timers.c | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/kernel/time/posix-cpu-timers.c b/kernel/time/posix-cpu-timers.c
index 8585ad6..8fafb87 100644
--- a/kernel/time/posix-cpu-timers.c
+++ b/kernel/time/posix-cpu-timers.c
@@ -602,7 +602,7 @@ static int posix_cpu_timer_set(struct k_itimer *timer, int 
timer_flags,
        /*
         * Disarm any old timer after extracting its expiry time.
         */
-       WARN_ON_ONCE(!irqs_disabled());
+       lockdep_assert_irqs_disabled();
 
        ret = 0;
        old_incr = timer->it.cpu.incr;
@@ -1033,7 +1033,7 @@ static void posix_cpu_timer_rearm(struct k_itimer *timer)
        /*
         * Now re-arm for the new expiry time.
         */
-       WARN_ON_ONCE(!irqs_disabled());
+       lockdep_assert_irqs_disabled();
        arm_timer(timer);
 unlock:
        unlock_task_sighand(p, &flags);
@@ -1124,7 +1124,7 @@ void run_posix_cpu_timers(struct task_struct *tsk)
        struct k_itimer *timer, *next;
        unsigned long flags;
 
-       WARN_ON_ONCE(!irqs_disabled());
+       lockdep_assert_irqs_disabled();
 
        /*
         * The fast path checks that there are no expired thread or thread
-- 
2.7.4