blk_mq_debugfs_unregister_sched 30 block/blk-mq-debugfs.h void blk_mq_debugfs_unregister_sched(struct request_queue *q); blk_mq_debugfs_unregister_sched 606 block/blk-mq-sched.c blk_mq_debugfs_unregister_sched(q);