[BLOCK] elevator: run queue in elevator_switch

elevator_dispatch needs to run queue after forced dispatching; otherwise, the queue might stall. Signed-off-by: Tejun Heo <htejun@gmail.com> Signed-off-by: Jens Axboe <axboe@suse.de>
git-mirror · Nov 12, 2005 · 407df2a · 407df2a
1 parent 47a0041
commit 407df2a
Showing 1 changed file with 2 additions and 0 deletions.
diff --git a/block/elevator.c b/block/elevator.c
@@ -696,6 +696,8 @@ static void elevator_switch(request_queue_t *q, struct elevator_type *new_e)
 		;
 
 	while (q->rq.elvpriv) {
+		blk_remove_plug(q);
+		q->request_fn(q);
 		spin_unlock_irq(q->queue_lock);
 		msleep(10);
 		spin_lock_irq(q->queue_lock);