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rbd: mark block queue as non-rotational 

Set QUEUE_FLAG_NONROT.  Following commit b277da0a8a ("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>
This commit is contained in:
Ilya Dryomov 2015-03-24 16:15:17 +03:00
parent 67c64eb742
commit d8a2c89c86
1 changed files with 2 additions and 2 deletions
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4
drivers/block/rbd.c
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@ -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);