'Update the values for Cinder specific quotas
This method returns HTTP 204 (no content) on success.'

@rest_utils.ajax(data_required=True)
def patch(self, request):

    if api.cinder.is_volume_service_enabled(request):
        cinder_data = {key: request.DATA[key] for key in quotas.CINDER_QUOTA_FIELDS}
        api.cinder.default_quota_update(request, **cinder_data)
    else:
        raise rest_utils.AjaxError(501, _('Service    Cinder    is    disabled.'))
