hrtimer: fixup comments
Clean up the comments Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl> Signed-off-by: Ingo Molnar <mingo@elte.hu>
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@ -1143,9 +1143,9 @@ static void __run_hrtimer(struct hrtimer *timer)
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spin_lock(&cpu_base->lock);
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spin_lock(&cpu_base->lock);
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/*
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/*
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* Note: We clear the CALLBACK bit after enqueue_hrtimer to avoid
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* Note: We clear the CALLBACK bit after enqueue_hrtimer and
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* reprogramming of the event hardware. This happens at the end of this
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* we do not reprogramm the event hardware. Happens either in
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* function anyway.
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* hrtimer_start_range_ns() or in hrtimer_interrupt()
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*/
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*/
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if (restart != HRTIMER_NORESTART) {
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if (restart != HRTIMER_NORESTART) {
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BUG_ON(timer->state != HRTIMER_STATE_CALLBACK);
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BUG_ON(timer->state != HRTIMER_STATE_CALLBACK);
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@ -1514,14 +1514,12 @@ static void migrate_hrtimer_list(struct hrtimer_clock_base *old_base,
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__remove_hrtimer(timer, old_base, HRTIMER_STATE_MIGRATE, 0);
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__remove_hrtimer(timer, old_base, HRTIMER_STATE_MIGRATE, 0);
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timer->base = new_base;
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timer->base = new_base;
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/*
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/*
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* Enqueue the timers on the new cpu, but do not reprogram
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* Enqueue the timers on the new cpu. This does not
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* the timer as that would enable a deadlock between
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* reprogram the event device in case the timer
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* hrtimer_enqueue_reprogramm() running the timer and us still
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* expires before the earliest on this CPU, but we run
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* holding a nested base lock.
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* hrtimer_interrupt after we migrated everything to
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*
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* sort out already expired timers and reprogram the
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* Instead we tickle the hrtimer interrupt after the migration
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* event device.
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* is done, which will run all expired timers and re-programm
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* the timer device.
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*/
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*/
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enqueue_hrtimer(timer, new_base);
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enqueue_hrtimer(timer, new_base);
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