Just demonstrate one of x-blockdev-reopen usecases. We can't simply
remove persistent bitmap from RO node (for example from backing file),
as we need to remove it from the image too. So, we should reopen the
node first.
Signed-off-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>
Message-Id: <20210401161522.8001-1-vsementsov@virtuozzo.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
