SD_WANT_RESERVE
(SD_LOST_RESERVE | SD_WANT_RESERVE);
~(SD_RESERVE | SD_LOST_RESERVE | SD_WANT_RESERVE);
(SD_LOST_RESERVE | SD_WANT_RESERVE);
if (un->un_resvd_status & SD_WANT_RESERVE) {
un->un_resvd_status &= ~SD_WANT_RESERVE;
(SD_LOST_RESERVE | SD_WANT_RESERVE);
if (un->un_resvd_status & SD_WANT_RESERVE) {
un->un_resvd_status |= (SD_LOST_RESERVE | SD_WANT_RESERVE);
~(SD_LOST_RESERVE | SD_WANT_RESERVE | SD_RESERVATION_CONFLICT);
un->un_resvd_status &= ~(SD_LOST_RESERVE | SD_WANT_RESERVE);
(SD_RESERVE | SD_WANT_RESERVE | SD_LOST_RESERVE)) {
(SD_RESERVE | SD_WANT_RESERVE | SD_LOST_RESERVE))) {
(SD_LOST_RESERVE | SD_WANT_RESERVE); \