ADMIN_SIG_REQUEUE
atomic_set_int(&queue->sc->admin_signal, ADMIN_SIG_REQUEUE);
#define ADMIN_SIG_RUN_MASK (ADMIN_SIG_STOP | ADMIN_SIG_REQUEUE)
if (sc->admin_signal & ADMIN_SIG_REQUEUE) {
atomic_clear_int(&sc->admin_signal, ADMIN_SIG_REQUEUE);
atomic_set_int(&subq->sc->admin_signal, ADMIN_SIG_REQUEUE);