Comment 1 for bug 1185851

Ok how about this for a workaround. When image is deleted in Glance, if the image has clone(s) it will fail (but Glance delete succeed). In this case we could create a flag (object?) to indicate that the image is no longer needed by Glance. Then each time glance performs a delete (and/or other ops?) it can check these 'flags' and attempt to delete the volume if clones/children no longer exist.