clockevents: Convert to raw_spinlock

Convert locks which cannot be sleeping locks in preempt-rt to
raw_spinlocks.

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Acked-by: Peter Zijlstra <peterz@infradead.org>
Acked-by: Ingo Molnar <mingo@elte.hu>

1 files changed, 7 insertions, 7 deletions

diff --git a/kernel/time/clockevents.c b/kernel/time/clockevents.c
index 20a8920029ee..3d5fc0fd1cca 100644
--- a/kernel/time/clockevents.c
+++ b/kernel/time/clockevents.c
@@ -30,7 +30,7 @@ static LIST_HEAD(clockevents_released);
 static RAW_NOTIFIER_HEAD(clockevents_chain);
 
 /* Protection for the above */
-static DEFINE_SPINLOCK(clockevents_lock);
+static DEFINE_RAW_SPINLOCK(clockevents_lock);
 
 /**
  * clockevents_delta2ns - Convert a latch value (device ticks) to nanoseconds
@@ -141,9 +141,9 @@ int clockevents_register_notifier(struct notifier_block *nb)
         unsigned long flags;
         int ret;
 
-        spin_lock_irqsave(&clockevents_lock, flags);
+        raw_spin_lock_irqsave(&clockevents_lock, flags);
         ret = raw_notifier_chain_register(&clockevents_chain, nb);
-        spin_unlock_irqrestore(&clockevents_lock, flags);
+        raw_spin_unlock_irqrestore(&clockevents_lock, flags);
 
         return ret;
 }
@@ -185,13 +185,13 @@ void clockevents_register_device(struct clock_event_device *dev)
         BUG_ON(dev->mode != CLOCK_EVT_MODE_UNUSED);
         BUG_ON(!dev->cpumask);
 
-        spin_lock_irqsave(&clockevents_lock, flags);
+        raw_spin_lock_irqsave(&clockevents_lock, flags);
 
         list_add(&dev->list, &clockevent_devices);
         clockevents_do_notify(CLOCK_EVT_NOTIFY_ADD, dev);
         clockevents_notify_released();
 
-        spin_unlock_irqrestore(&clockevents_lock, flags);
+        raw_spin_unlock_irqrestore(&clockevents_lock, flags);
 }
 EXPORT_SYMBOL_GPL(clockevents_register_device);
 
@@ -241,7 +241,7 @@ void clockevents_notify(unsigned long reason, void *arg)
         struct list_head *node, *tmp;
         unsigned long flags;
 
-        spin_lock_irqsave(&clockevents_lock, flags);
+        raw_spin_lock_irqsave(&clockevents_lock, flags);
         clockevents_do_notify(reason, arg);
 
         switch (reason) {
@@ -256,7 +256,7 @@ void clockevents_notify(unsigned long reason, void *arg)
         default:
                 break;
         }
-        spin_unlock_irqrestore(&clockevents_lock, flags);
+        raw_spin_unlock_irqrestore(&clockevents_lock, flags);
 }
 EXPORT_SYMBOL_GPL(clockevents_notify);
 #endif