dm rq: remove unused arguments from rq_completed()

 * the md may be freed in dm_put() at the end of this function.

 * Or do dm_get() before calling this function and dm_put() later.

 */

static void rq_completed(struct mapped_device *md, int rw, bool run_queue)

static void rq_completed(struct mapped_device *md)

{

	/* nudge anyone waiting on suspend queue */

	if (unlikely(waitqueue_active(&md->wait)))

 */

static void dm_end_request(struct request *clone, blk_status_t error)

{

	int rw = rq_data_dir(clone);

	struct dm_rq_target_io *tio = clone->end_io_data;

	struct mapped_device *md = tio->md;

	struct request *rq = tio->orig;

	rq_end_stats(md, rq);

	blk_mq_end_request(rq, error);

	rq_completed(md, rw, true);

	rq_completed(md);

}

static void __dm_mq_kick_requeue_list(struct request_queue *q, unsigned long msecs)

{

	struct mapped_device *md = tio->md;

	struct request *rq = tio->orig;

	int rw = rq_data_dir(rq);

	unsigned long delay_ms = delay_requeue ? 100 : 0;

	rq_end_stats(md, rq);

	}

	dm_mq_delay_requeue_request(rq, delay_ms);

	rq_completed(md, rw, false);

	rq_completed(md);

}

static void dm_done(struct request *clone, blk_status_t error, bool mapped)

	bool mapped = true;

	struct dm_rq_target_io *tio = tio_from_request(rq);

	struct request *clone = tio->clone;

	int rw;

	if (!clone) {

		struct mapped_device *md = tio->md;

		rq_end_stats(md, rq);

		rw = rq_data_dir(rq);

		blk_mq_end_request(rq, tio->error);

		rq_completed(md, rw, false);

		rq_completed(md);

		return;

	}

	if (map_request(tio) == DM_MAPIO_REQUEUE) {

		/* Undo dm_start_request() before requeuing */

		rq_end_stats(md, rq);

		rq_completed(md, rq_data_dir(rq), false);

		rq_completed(md);

		return BLK_STS_RESOURCE;

	}