Commit d8a2c89c authored Mar 24, 2015 by Ilya Dryomov

rbd: mark block queue as non-rotational



Set QUEUE_FLAG_NONROT.  Following commit b277da0a ("block: disable
entropy contributions for nonrot devices") we should also clear
QUEUE_FLAG_ADD_RANDOM, but it's off by default for blk-mq drivers, so
just note it in the comment.

Also remove physical block size assignment - no sense in repeating
defaults that are not going to change.

Signed-off-by: Ilya Dryomov <idryomov@gmail.com>

parent 67c64eb7

drivers/block/rbd.c

+2 −2

Original line number	Diff line number	Diff line
		@@ -3762,8 +3762,8 @@ static int rbd_init_disk(struct rbd_device *rbd_dev)
		goto out_tag_set;
		}

		/* We use the default size, but let's be explicit about it. */
		blk_queue_physical_block_size(q, SECTOR_SIZE);
		queue_flag_set_unlocked(QUEUE_FLAG_NONROT, q);
		/* QUEUE_FLAG_ADD_RANDOM is off by default for blk-mq */

		/* set io sizes to object size */
		segment_size = rbd_obj_bytes(&rbd_dev->header);