From: Sage Weil <sage@newdream.net>
Date: Wed, 20 Apr 2011 05:49:06 +0000 (-0700)
Subject: rbd: handle online resize of underlying rbd image
X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=9db4b3e32778400555d5cc6fb61d4058902d37f7;p=GitHub%2Fmoto-9609%2Fandroid_kernel_motorola_exynos9610.git

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>
---

diff --git a/drivers/block/rbd.c b/drivers/block/rbd.c
index d833d02b321f..1278098624e6 100644
--- 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;