#!/bin/sh
set -e

# http://tracker.ceph.com/issues/3964

[ -d /sys/bus/rbd ] || sudo modprobe rbd
sudo chown ubuntu /sys/bus/rbd/add
sudo chown ubuntu /sys/bus/rbd/remove

rbd create image -s 100
rbd map image
udevadm settle  # note: newer versions of rbd do this for you.
dd if=/dev/zero of=/dev/rbd/rbd/image oflag=direct count=10
rbd snap create image@s1
dd if=/dev/zero of=/dev/rbd/rbd/image oflag=direct count=10   # used to fail
rbd snap rm image@s1
dd if=/dev/zero of=/dev/rbd/rbd/image oflag=direct count=10

udevadm settle  # udev is does blkid on device close; yeesh!  see #4183

rbd unmap /dev/rbd/rbd/image
rbd rm image

# wait a few seconds for the async kernel bits to clean themselves up
sleep 4
rbd rm image || :

echo OK