rbd: handle online resize of underlying rbd image



If we get a notification that the image header has changed, check for
a change in the image size.

Signed-off-by: Sage Weil <sage@newdream.net>

parent 45e3d3ee

drivers/block/rbd.c

+3 −0

Original line number	Diff line number	Diff line
		@@ -1664,6 +1664,9 @@ static int __rbd_update_snaps(struct rbd_device *rbd_dev)
		if (ret < 0)
		return ret;

		/* resized? */
		set_capacity(rbd_dev->disk, h.image_size / 512ULL);

		down_write(&rbd_dev->header.snap_rwsem);

		snap_seq = rbd_dev->header.snapc->seq;