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>
mariux64 · May 24, 2011 · 9db4b3e · 9db4b3e
1 parent 45e3d3e
commit 9db4b3e
Showing 1 changed file with 3 additions and 0 deletions.
diff --git a/drivers/block/rbd.c b/drivers/block/rbd.c
@@ -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;