'Roll back volume status to \'in-use\'.'

@wsgi.action('os-roll_detaching')
def _roll_detaching(self, req, id, body):

    context = req.environ['cinder.context']
    volume = self.volume_api.get(context, id)
    self.volume_api.roll_detaching(context, volume)
    return webob.Response(status_int=http_client.ACCEPTED)
