Merge branch 'timers-nohz-for-linus' of git://git.kernel.org/pub/scm/linux/kernel...

[karo-tx-linux.git] / kernel / timer.c

diff --git a/kernel/timer.c b/kernel/timer.c
index 09bca8ce97718c4f21b6b90cbf6785467416c055..a860bba34412c0d8047ff4d81c54fb500fa5de9f 100644 (file)
--- a/kernel/timer.c
+++ b/kernel/timer.c
@@ -739,7 +739,7 @@ __mod_timer(struct timer_list *timer, unsigned long expires,
 
        cpu = smp_processor_id();
 
-#if defined(CONFIG_NO_HZ) && defined(CONFIG_SMP)
+#if defined(CONFIG_NO_HZ_COMMON) && defined(CONFIG_SMP)
        if (!pinned && get_sysctl_timer_migration() && idle_cpu(cpu))
                cpu = get_nohz_timer_target();
 #endif
@@ -931,14 +931,14 @@ void add_timer_on(struct timer_list *timer, int cpu)
        debug_activate(timer, timer->expires);
        internal_add_timer(base, timer);
        /*
-        * Check whether the other CPU is idle and needs to be
-        * triggered to reevaluate the timer wheel when nohz is
-        * active. We are protected against the other CPU fiddling
+        * Check whether the other CPU is in dynticks mode and needs
+        * to be triggered to reevaluate the timer wheel.
+        * We are protected against the other CPU fiddling
         * with the timer by holding the timer base lock. This also
-        * makes sure that a CPU on the way to idle can not evaluate
-        * the timer wheel.
+        * makes sure that a CPU on the way to stop its tick can not
+        * evaluate the timer wheel.
         */
-       wake_up_idle_cpu(cpu);
+       wake_up_nohz_cpu(cpu);
        spin_unlock_irqrestore(&base->lock, flags);
 }
 EXPORT_SYMBOL_GPL(add_timer_on);
@@ -1189,7 +1189,7 @@ static inline void __run_timers(struct tvec_base *base)
        spin_unlock_irq(&base->lock);
 }
 
-#ifdef CONFIG_NO_HZ
+#ifdef CONFIG_NO_HZ_COMMON
 /*
  * Find out when the next timer event is due to happen. This
  * is used on S/390 to stop all activity when a CPU is idle.