Donate to e Foundation | Murena handsets with /e/OS | Own a part of Murena! Learn more

Commit 5b5e20f4 authored by Ming Lei's avatar Ming Lei Committed by Jens Axboe
Browse files

block: loop: set QUEUE_FLAG_NOMERGES for request queue of loop 



It doesn't make sense to enable merge because the I/O
submitted to backing file is handled page by page.

Signed-off-by: default avatarMing Lei <ming.lei@canonical.com>
Reviewed-by: default avatarChristoph Hellwig <hch@lst.de>
Signed-off-by: default avatarJens Axboe <axboe@fb.com>
parent 53cbf3b1

drivers/block/loop.c

+6 −0
Original line number Diff line number Diff line
@@ -1595,6 +1595,12 @@ static int loop_add(struct loop_device **l, int i) 
	}

	lo->lo_queue->queuedata = lo;



	/*

	 * It doesn't make sense to enable merge because the I/O

	 * submitted to backing file is handled page by page.

	 */

	queue_flag_set_unlocked(QUEUE_FLAG_NOMERGES, lo->lo_queue);



	INIT_LIST_HEAD(&lo->write_cmd_head);

	INIT_WORK(&lo->write_work, loop_queue_write_work);