CQ_MASK 1370 kernel/locking/lockdep.c return ((cq->rear + 1) & CQ_MASK) == cq->front; CQ_MASK 1379 kernel/locking/lockdep.c cq->rear = (cq->rear + 1) & CQ_MASK; CQ_MASK 1395 kernel/locking/lockdep.c cq->front = (cq->front + 1) & CQ_MASK; CQ_MASK 1402 kernel/locking/lockdep.c return (cq->rear - cq->front) & CQ_MASK;