cfq-iosched: no need to save interrupts in cfq_kick_queue()
Jens Axboe [Wed, 15 Apr 2009 10:11:10 +0000 (12:11 +0200)]
It's called from the workqueue handlers from process context, so
we always have irqs enabled when entered.

Signed-off-by: Jens Axboe <jens.axboe@oracle.com>

block/cfq-iosched.c

index 56e9d85..e59f210 100644 (file)
@@ -2157,11 +2157,10 @@ static void cfq_kick_queue(struct work_struct *work)
        struct cfq_data *cfqd =
                container_of(work, struct cfq_data, unplug_work);
        struct request_queue *q = cfqd->queue;
-       unsigned long flags;
 
-       spin_lock_irqsave(q->queue_lock, flags);
+       spin_lock_irq(q->queue_lock);
        blk_start_queueing(q);
-       spin_unlock_irqrestore(q->queue_lock, flags);
+       spin_unlock_irq(q->queue_lock);
 }
 
 /*