Snapshots cannot be resized, and the new capacity of head should not
be reflected by the snapshot.
Signed-off-by: Josh Durgin <josh.durgin@xxxxxxxxxxx>
Reviewed-by: Alex Elder <elder@xxxxxxxxxxx>
---
drivers/block/rbd.c | 7 ++++++-
1 files changed, 6 insertions(+), 1 deletions(-)
diff --git a/drivers/block/rbd.c b/drivers/block/rbd.c
index 730d0ce..f171ceb 100644
--- a/drivers/block/rbd.c
+++ b/drivers/block/rbd.c
@@ -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);
--
1.7.5.4
--
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