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rbd: handle online resize of underlying rbd image

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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>
This commit is contained in:
Sage Weil 2011-04-19 22:49:06 -07:00
parent 45e3d3eeb6
commit 9db4b3e327
1 changed files with 3 additions and 0 deletions
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3
drivers/block/rbd.c
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@ -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;