[PATCH 1/8] blk-mq: Remove some unused function arguments

Hannes Reinecke
2019-11-26T09:14:27Z

From: John Garry <john.garry@huawei.com>

The struct blk_mq_hw_ctx * argument in blk_mq_put_tag(),
blk_mq_poll_nsecs(), and blk_mq_poll_hybrid_sleep() is unused, so remove
it.

Reviewed-by: Hannes Reinecke <hare@suse.de>
Signed-off-by: John Garry <john.garry@huawei.com>
---
block/blk-mq-tag.c | 4 ++--
block/blk-mq-tag.h | 4 ++--
block/blk-mq.c | 10 ++++------
block/blk-mq.h | 2 +-
4 files changed, 9 insertions(+), 11 deletions(-)

diff --git a/block/blk-mq-tag.c b/block/blk-mq-tag.c
index 008388e82b5c..53b4a9414fbd 100644
--- a/block/blk-mq-tag.c
+++ b/block/blk-mq-tag.c
@@ -191,8 +191,8 @@ unsigned int blk_mq_get_tag(struct blk_mq_alloc_data *data)
return tag + tag_offset;
}

-void blk_mq_put_tag(struct blk_mq_hw_ctx *hctx, struct blk_mq_tags *tags,
- struct blk_mq_ctx *ctx, unsigned int tag)
+void blk_mq_put_tag(struct blk_mq_tags *tags, struct blk_mq_ctx *ctx,
+ unsigned int tag)
{
if (!blk_mq_tag_is_reserved(tags, tag)) {
const int real_tag = tag - tags->nr_reserved_tags;
diff --git a/block/blk-mq-tag.h b/block/blk-mq-tag.h
index 61deab0b5a5a..66d04dea0bdb 100644
--- a/block/blk-mq-tag.h
+++ b/block/blk-mq-tag.h
@@ -26,8 +26,8 @@ extern struct blk_mq_tags *blk_mq_init_tags(unsigned int nr_tags, unsigned int r
extern void blk_mq_free_tags(struct blk_mq_tags *tags);

extern unsigned int blk_mq_get_tag(struct blk_mq_alloc_data *data);
-extern void blk_mq_put_tag(struct blk_mq_hw_ctx *hctx, struct blk_mq_tags *tags,
- struct blk_mq_ctx *ctx, unsigned int tag);
+extern void blk_mq_put_tag(struct blk_mq_tags *tags, struct blk_mq_ctx *ctx,
+ unsigned int tag);
extern bool blk_mq_has_free_tags(struct blk_mq_tags *tags);
extern int blk_mq_tag_update_depth(struct blk_mq_hw_ctx *hctx,
struct blk_mq_tags **tags,
diff --git a/block/blk-mq.c b/block/blk-mq.c
index 6e3b15f70cd7..16aa20d23b67 100644
--- a/block/blk-mq.c
+++ b/block/blk-mq.c
@@ -499,9 +499,9 @@ static void __blk_mq_free_request(struct request *rq)
blk_pm_mark_last_busy(rq);
rq->mq_hctx = NULL;
if (rq->tag != -1)
- blk_mq_put_tag(hctx, hctx->tags, ctx, rq->tag);
+ blk_mq_put_tag(hctx->tags, ctx, rq->tag);
if (sched_tag != -1)
- blk_mq_put_tag(hctx, hctx->sched_tags, ctx, sched_tag);
+ blk_mq_put_tag(hctx->sched_tags, ctx, sched_tag);
blk_mq_sched_restart(hctx);
blk_queue_exit(q);
}
@@ -3354,7 +3354,6 @@ static void blk_mq_poll_stats_fn(struct blk_stat_callback *cb)
}

static unsigned long blk_mq_poll_nsecs(struct request_queue *q,
- struct blk_mq_hw_ctx *hctx,
struct request *rq)
{
unsigned long ret = 0;
@@ -3387,7 +3386,6 @@ static unsigned long blk_mq_poll_nsecs(struct request_queue *q,
}

static bool blk_mq_poll_hybrid_sleep(struct request_queue *q,
- struct blk_mq_hw_ctx *hctx,
struct request *rq)
{
struct hrtimer_sleeper hs;
@@ -3407,7 +3405,7 @@ static bool blk_mq_poll_hybrid_sleep(struct request_queue *q,
if (q->poll_nsec > 0)
nsecs = q->poll_nsec;
else
- nsecs = blk_mq_poll_nsecs(q, hctx, rq);
+ nsecs = blk_mq_poll_nsecs(q, rq);

if (!nsecs)
return false;
@@ -3462,7 +3460,7 @@ static bool blk_mq_poll_hybrid(struct request_queue *q,
return false;
}

- return blk_mq_poll_hybrid_sleep(q, hctx, rq);
+ return blk_mq_poll_hybrid_sleep(q, rq);
}

/**
diff --git a/block/blk-mq.h b/block/blk-mq.h
index 32c62c64e6c2..78d38b5f2793 100644
--- a/block/blk-mq.h
+++ b/block/blk-mq.h
@@ -208,7 +208,7 @@ static inline bool blk_mq_get_dispatch_budget(struct blk_mq_hw_ctx *hctx)
static inline void __blk_mq_put_driver_tag(struct blk_mq_hw_ctx *hctx,
struct request *rq)
{
- blk_mq_put_tag(hctx, hctx->tags, rq->mq_ctx, rq->tag);
+ blk_mq_put_tag(hctx->tags, rq->mq_ctx, rq->tag);
rq->tag = -1;

if (rq->rq_flags & RQF_MQ_INFLIGHT) {
--
2.16.4