diff options
Diffstat (limited to 'kernel/hrtimer.c')
| -rw-r--r-- | kernel/hrtimer.c | 25 |
1 files changed, 10 insertions, 15 deletions
diff --git a/kernel/hrtimer.c b/kernel/hrtimer.c index 9c2bfa841281..8010a67cead0 100644 --- a/kernel/hrtimer.c +++ b/kernel/hrtimer.c @@ -1504,11 +1504,6 @@ static void __cpuinit init_hrtimers_cpu(int cpu) #ifdef CONFIG_HOTPLUG_CPU -static void tickle_timers(void *arg) -{ - hrtimer_peek_ahead_timers(); -} - static void migrate_hrtimer_list(struct hrtimer_clock_base *old_base, struct hrtimer_clock_base *new_base) { @@ -1547,20 +1542,19 @@ static void migrate_hrtimer_list(struct hrtimer_clock_base *old_base, static void migrate_hrtimers(int scpu) { struct hrtimer_cpu_base *old_base, *new_base; - int dcpu, i; + int i; BUG_ON(cpu_online(scpu)); - old_base = &per_cpu(hrtimer_bases, scpu); - new_base = &get_cpu_var(hrtimer_bases); - - dcpu = smp_processor_id(); - tick_cancel_sched_timer(scpu); + + local_irq_disable(); + old_base = &per_cpu(hrtimer_bases, scpu); + new_base = &__get_cpu_var(hrtimer_bases); /* * The caller is globally serialized and nobody else * takes two locks at once, deadlock is not possible. */ - spin_lock_irq(&new_base->lock); + spin_lock(&new_base->lock); spin_lock_nested(&old_base->lock, SINGLE_DEPTH_NESTING); for (i = 0; i < HRTIMER_MAX_CLOCK_BASES; i++) { @@ -1569,10 +1563,11 @@ static void migrate_hrtimers(int scpu) } spin_unlock(&old_base->lock); - spin_unlock_irq(&new_base->lock); - put_cpu_var(hrtimer_bases); + spin_unlock(&new_base->lock); - smp_call_function_single(dcpu, tickle_timers, NULL, 0); + /* Check, if we got expired work to do */ + __hrtimer_peek_ahead_timers(); + local_irq_enable(); } #endif /* CONFIG_HOTPLUG_CPU */ |