cfq-iosched: no need to save interrupts in cfq_kick_queue()

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>

diff --git a/block/cfq-iosched.c b/block/cfq-iosched.c
index 56e9d8503cf1ddc5d67113820b9ac1c069b701e7..e59f2108272fd1f450297eae347b2e5dbae4a6f1 100644 (file)
--- a/block/cfq-iosched.c
+++ b/block/cfq-iosched.c
@@ -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);
 }
 
 /*