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Commit cf82c798 authored by Jens Axboe's avatar Jens Axboe
Browse files

block: kill queue_sync_plugs() 



The original use for this dates back to when we had to track write
requests for serializing around barriers. That's not needed anymore,
so kill it.

Signed-off-by: default avatarJens Axboe <jaxboe@fusionio.com>
parent dc6d36c9

block/blk-core.c

+0 −14
Original line number Original line Diff line number Diff line
@@ -198,19 +198,6 @@ void blk_dump_rq_flags(struct request *rq, char *msg) 
}

}

EXPORT_SYMBOL(blk_dump_rq_flags);

EXPORT_SYMBOL(blk_dump_rq_flags);





/*

 * Make sure that plugs that were pending when this function was entered,

 * are now complete and requests pushed to the queue.

*/

static inline void queue_sync_plugs(struct request_queue *q)

{

	/*

	 * If the current process is plugged and has barriers submitted,

	 * we will livelock if we don't unplug first.

	 */

	blk_flush_plug(current);

}



static void blk_delay_work(struct work_struct *work)

static void blk_delay_work(struct work_struct *work)

{

{

	struct request_queue *q;

	struct request_queue *q;
@@ -298,7 +285,6 @@ void blk_sync_queue(struct request_queue *q) 
{

{

	del_timer_sync(&q->timeout);

	del_timer_sync(&q->timeout);

	cancel_delayed_work_sync(&q->delay_work);

	cancel_delayed_work_sync(&q->delay_work);

	queue_sync_plugs(q);

}

}

EXPORT_SYMBOL(blk_sync_queue);

EXPORT_SYMBOL(blk_sync_queue);