author: Gautham R Shenoy <ego@in.ibm.com> 2007-10-18 23:40:47 -0700
committer: Linus Torvalds <torvalds@woody.linux-foundation.org> 2007-10-19 11:53:44 -0700
commit: d2b20b11547cefc89d6c81937e81afaf3c62808b
parent: 73e753a50dcac7d6d4fa8b9552203ef544a70d77
Commit Summary:
Diffstat:
1 file 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;