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blk-mq-debugfs: remove blk_mq_debugfs_unregister_rqos()

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Because this helper is only used by iocost and iolatency, while they
don't have debugfs entries.

Signed-off-by: Yu Kuai <yukuai@fnnas.com>
Reviewed-by: Nilay Shroff <nilay@linux.ibm.com>
Reviewed-by: Ming Lei <ming.lei@redhat.com>
Reviewed-by: Hannes Reinecke <hare@suse.de>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
This commit is contained in:
Yu Kuai 2026-02-02 16:05:21 +08:00 • committed by Jens Axboe
parent 70bafa5e31
commit 5ae4b12ee6
3 changed files with 0 additions and 18 deletions
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10
block/blk-mq-debugfs.c
View file

@ -734,16 +734,6 @@ static const char *rq_qos_id_to_name(enum rq_qos_id id)
return "unknown";
}
void blk_mq_debugfs_unregister_rqos(struct rq_qos *rqos)
{
lockdep_assert_held(&rqos->disk->queue->debugfs_mutex);
if (!rqos->disk->queue->debugfs_dir)
return;
debugfs_remove_recursive(rqos->debugfs_dir);
rqos->debugfs_dir = NULL;
}
static void blk_mq_debugfs_register_rqos(struct rq_qos *rqos)
{
struct request_queue *q = rqos->disk->queue;

4
block/blk-mq-debugfs.h
View file

@ -34,7 +34,6 @@ void blk_mq_debugfs_register_sched_hctx(struct request_queue *q,
void blk_mq_debugfs_unregister_sched_hctx(struct blk_mq_hw_ctx *hctx);
void blk_mq_debugfs_register_rq_qos(struct request_queue *q);
void blk_mq_debugfs_unregister_rqos(struct rq_qos *rqos);
#else
static inline void blk_mq_debugfs_register(struct request_queue *q)
{
@ -78,9 +77,6 @@ static inline void blk_mq_debugfs_register_rq_qos(struct request_queue *q)
{
}
static inline void blk_mq_debugfs_unregister_rqos(struct rq_qos *rqos)
{
}
#endif
#if defined(CONFIG_BLK_DEV_ZONED) && defined(CONFIG_BLK_DEBUG_FS)

4
block/blk-rq-qos.c
View file

@ -371,8 +371,4 @@ void rq_qos_del(struct rq_qos *rqos)
if (!q->rq_qos)
blk_queue_flag_clear(QUEUE_FLAG_QOS_ENABLED, q);
blk_mq_unfreeze_queue(q, memflags);
mutex_lock(&q->debugfs_mutex);
blk_mq_debugfs_unregister_rqos(rqos);
mutex_unlock(&q->debugfs_mutex);
}