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-rw-r--r--kernel/hrtimer.c15
1 files changed, 7 insertions, 8 deletions
diff --git a/kernel/hrtimer.c b/kernel/hrtimer.c
index cdec83e..95978f4 100644
--- a/kernel/hrtimer.c
+++ b/kernel/hrtimer.c
@@ -1403,9 +1403,7 @@ void hrtimer_run_queues(void)
if (!base->first)
continue;
- if (base->get_softirq_time)
- base->softirq_time = base->get_softirq_time();
- else if (gettime) {
+ if (gettime) {
hrtimer_get_softirq_time(cpu_base);
gettime = 0;
}
@@ -1688,9 +1686,11 @@ static void migrate_hrtimers(int cpu)
new_base = &get_cpu_var(hrtimer_bases);
tick_cancel_sched_timer(cpu);
-
- local_irq_disable();
- spin_lock(&new_base->lock);
+ /*
+ * 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_nested(&old_base->lock, SINGLE_DEPTH_NESTING);
for (i = 0; i < HRTIMER_MAX_CLOCK_BASES; i++) {
@@ -1703,8 +1703,7 @@ static void migrate_hrtimers(int cpu)
raise = 1;
spin_unlock(&old_base->lock);
- spin_unlock(&new_base->lock);
- local_irq_enable();
+ spin_unlock_irq(&new_base->lock);
put_cpu_var(hrtimer_bases);
if (raise)
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