diff options
| -rw-r--r-- | lib/percpu_counter.c | 5 |
1 files changed, 3 insertions, 2 deletions
diff --git a/lib/percpu_counter.c b/lib/percpu_counter.c index 9659eabffc31..393a0e915c23 100644 --- a/lib/percpu_counter.c +++ b/lib/percpu_counter.c @@ -124,12 +124,13 @@ static int __cpuinit percpu_counter_hotcpu_callback(struct notifier_block *nb, mutex_lock(&percpu_counters_lock); list_for_each_entry(fbc, &percpu_counters, list) { s32 *pcount; + unsigned long flags; - spin_lock(&fbc->lock); + spin_lock_irqsave(&fbc->lock, flags); pcount = per_cpu_ptr(fbc->counters, cpu); fbc->count += *pcount; *pcount = 0; - spin_unlock(&fbc->lock); + spin_unlock_irqrestore(&fbc->lock, flags); } mutex_unlock(&percpu_counters_lock); return NOTIFY_OK; |