QUEUE_FLAG_SAME_COMP
!test_bit(QUEUE_FLAG_SAME_COMP, &rq->q->queue_flags))
bool set = test_bit(QUEUE_FLAG_SAME_COMP, &disk->queue->queue_flags);
blk_queue_flag_set(QUEUE_FLAG_SAME_COMP, q);
blk_queue_flag_set(QUEUE_FLAG_SAME_COMP, q);
blk_queue_flag_clear(QUEUE_FLAG_SAME_COMP, q);
#define QUEUE_FLAG_MQ_DEFAULT (1UL << QUEUE_FLAG_SAME_COMP)