RTRS_PERMIT_WAIT
err = send_msg_sess_info(sess, RTRS_PERMIT_WAIT);
iu = rnbd_get_iu(sess, RTRS_ADMIN_CON, RTRS_PERMIT_WAIT);
msg_open_conf, &errno, RTRS_PERMIT_WAIT);
send_msg_close(dev, dev->device_id, RTRS_PERMIT_WAIT);
send_msg_close(dev, dev->device_id, RTRS_PERMIT_WAIT);
err = send_msg_open(dev, RTRS_PERMIT_WAIT);
iu = rnbd_get_iu(sess, RTRS_ADMIN_CON, RTRS_PERMIT_WAIT);
iu = rnbd_get_iu(sess, RTRS_ADMIN_CON, RTRS_PERMIT_WAIT);
iu = rnbd_get_iu(sess, RTRS_ADMIN_CON, RTRS_PERMIT_WAIT);