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Subject[PATCH -next 1/3] block, bfq: remove unused functions
Date
From: Yu Kuai <yukuai3@huawei.com>

While doing code coverage testing(CONFIG_BFQ_CGROUP_DEBUG is disabled), we
found that some functions doesn't have caller, thus remove them.

Signed-off-by: Yu Kuai <yukuai3@huawei.com>
---
block/bfq-cgroup.c | 5 -----
block/bfq-iosched.h | 13 ++++++++-----
2 files changed, 8 insertions(+), 10 deletions(-)

diff --git a/block/bfq-cgroup.c b/block/bfq-cgroup.c
index 30b15a9a47c4..144bca006463 100644
--- a/block/bfq-cgroup.c
+++ b/block/bfq-cgroup.c
@@ -254,17 +254,12 @@ void bfqg_stats_update_completion(struct bfq_group *bfqg, u64 start_time_ns,

#else /* CONFIG_BFQ_CGROUP_DEBUG */

-void bfqg_stats_update_io_add(struct bfq_group *bfqg, struct bfq_queue *bfqq,
- blk_opf_t opf) { }
void bfqg_stats_update_io_remove(struct bfq_group *bfqg, blk_opf_t opf) { }
void bfqg_stats_update_io_merged(struct bfq_group *bfqg, blk_opf_t opf) { }
void bfqg_stats_update_completion(struct bfq_group *bfqg, u64 start_time_ns,
u64 io_start_time_ns, blk_opf_t opf) { }
void bfqg_stats_update_dequeue(struct bfq_group *bfqg) { }
-void bfqg_stats_set_start_empty_time(struct bfq_group *bfqg) { }
-void bfqg_stats_update_idle_time(struct bfq_group *bfqg) { }
void bfqg_stats_set_start_idle_time(struct bfq_group *bfqg) { }
-void bfqg_stats_update_avg_queue_size(struct bfq_group *bfqg) { }

#endif /* CONFIG_BFQ_CGROUP_DEBUG */

diff --git a/block/bfq-iosched.h b/block/bfq-iosched.h
index ad8e513d7e87..f81ab3c8fa3c 100644
--- a/block/bfq-iosched.h
+++ b/block/bfq-iosched.h
@@ -993,20 +993,23 @@ void bfq_put_async_queues(struct bfq_data *bfqd, struct bfq_group *bfqg);
/* ---------------- cgroups-support interface ---------------- */

void bfqg_stats_update_legacy_io(struct request_queue *q, struct request *rq);
-void bfqg_stats_update_io_add(struct bfq_group *bfqg, struct bfq_queue *bfqq,
- blk_opf_t opf);
void bfqg_stats_update_io_remove(struct bfq_group *bfqg, blk_opf_t opf);
void bfqg_stats_update_io_merged(struct bfq_group *bfqg, blk_opf_t opf);
void bfqg_stats_update_completion(struct bfq_group *bfqg, u64 start_time_ns,
u64 io_start_time_ns, blk_opf_t opf);
void bfqg_stats_update_dequeue(struct bfq_group *bfqg);
-void bfqg_stats_set_start_empty_time(struct bfq_group *bfqg);
-void bfqg_stats_update_idle_time(struct bfq_group *bfqg);
void bfqg_stats_set_start_idle_time(struct bfq_group *bfqg);
-void bfqg_stats_update_avg_queue_size(struct bfq_group *bfqg);
void bfq_bfqq_move(struct bfq_data *bfqd, struct bfq_queue *bfqq,
struct bfq_group *bfqg);

+#ifdef CONFIG_BFQ_CGROUP_DEBUG
+void bfqg_stats_update_io_add(struct bfq_group *bfqg, struct bfq_queue *bfqq,
+ blk_opf_t opf);
+void bfqg_stats_set_start_empty_time(struct bfq_group *bfqg);
+void bfqg_stats_update_idle_time(struct bfq_group *bfqg);
+void bfqg_stats_update_avg_queue_size(struct bfq_group *bfqg);
+#endif
+
void bfq_init_entity(struct bfq_entity *entity, struct bfq_group *bfqg);
void bfq_bic_update_cgroup(struct bfq_io_cq *bic, struct bio *bio);
void bfq_end_wr_async(struct bfq_data *bfqd);
--
2.31.1
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