Commit 474ef7ce authored by Josh Durgin's avatar Josh Durgin Committed by Sage Weil
Browse files

rbd: only reset capacity when pointing to head 



Snapshots cannot be resized, and the new capacity of head should not
be reflected by the snapshot.

Signed-off-by: default avatarJosh Durgin <josh.durgin@inktank.com>
Reviewed-by: default avatarAlex Elder <elder@inktank.com>
parent e88a36ec

drivers/block/rbd.c

+6 −1
Original line number Diff line number Diff line
@@ -1725,7 +1725,12 @@ static int __rbd_refresh_header(struct rbd_device *rbd_dev) 
		return ret;



	/* resized? */

	set_capacity(rbd_dev->disk, h.image_size / SECTOR_SIZE);

	if (rbd_dev->snap_id == CEPH_NOSNAP) {

		sector_t size = (sector_t) h.image_size / SECTOR_SIZE;



		dout("setting size to %llu sectors", (unsigned long long) size);

		set_capacity(rbd_dev->disk, size);

	}



	down_write(&rbd_dev->header_rwsem);