Lines Matching defs:sentinel

388 #define QUEUE_SENTINEL	4	/* not an queue index, but mark for sentinel */
3576 	struct buf *sentinel;
3588 	sentinel = malloc(sizeof(struct buf), M_TEMP, M_WAITOK | M_ZERO);
3589 	sentinel->b_qindex = QUEUE_SENTINEL;
3591 	TAILQ_INSERT_HEAD(&bq->bq_queue, sentinel, b_freelist);
3596 		bp = TAILQ_NEXT(sentinel, b_freelist);
3598 			TAILQ_REMOVE(&bq->bq_queue, sentinel, b_freelist);
3599 			TAILQ_INSERT_AFTER(&bq->bq_queue, bp, sentinel,
3699 	TAILQ_REMOVE(&bq->bq_queue, sentinel, b_freelist);
3701 	free(sentinel, M_TEMP);