[PATCH 1/3] blk-mq: Cleanup blk_mq_tag_busy() and blk_mq_tag_idle()

From: Alexander Gordeev
Date: Wed Sep 03 2014 - 16:33:55 EST


Signed-off-by: Alexander Gordeev <agordeev@xxxxxxxxxx>
Cc: Jens Axboe <axboe@xxxxxxxxx>
---
block/blk-mq-tag.c | 4 +---
block/blk-mq-tag.h | 17 ++++++++---------
2 files changed, 9 insertions(+), 12 deletions(-)

diff --git a/block/blk-mq-tag.c b/block/blk-mq-tag.c
index c1b9242..4953b64 100644
--- a/block/blk-mq-tag.c
+++ b/block/blk-mq-tag.c
@@ -58,13 +58,11 @@ static inline void bt_index_atomic_inc(atomic_t *index)
/*
* If a previously inactive queue goes active, bump the active user count.
*/
-bool __blk_mq_tag_busy(struct blk_mq_hw_ctx *hctx)
+void __blk_mq_tag_busy(struct blk_mq_hw_ctx *hctx)
{
if (!test_bit(BLK_MQ_S_TAG_ACTIVE, &hctx->state) &&
!test_and_set_bit(BLK_MQ_S_TAG_ACTIVE, &hctx->state))
atomic_inc(&hctx->tags->active_queues);
-
- return true;
}

/*
diff --git a/block/blk-mq-tag.h b/block/blk-mq-tag.h
index 6206ed1..795ec3f 100644
--- a/block/blk-mq-tag.h
+++ b/block/blk-mq-tag.h
@@ -66,23 +66,22 @@ enum {
BLK_MQ_TAG_MAX = BLK_MQ_TAG_FAIL - 1,
};

-extern bool __blk_mq_tag_busy(struct blk_mq_hw_ctx *);
+extern void __blk_mq_tag_busy(struct blk_mq_hw_ctx *);
extern void __blk_mq_tag_idle(struct blk_mq_hw_ctx *);

static inline bool blk_mq_tag_busy(struct blk_mq_hw_ctx *hctx)
{
- if (!(hctx->flags & BLK_MQ_F_TAG_SHARED))
- return false;
-
- return __blk_mq_tag_busy(hctx);
+ if (hctx->flags & BLK_MQ_F_TAG_SHARED) {
+ __blk_mq_tag_busy(hctx);
+ return true;
+ }
+ return false;
}

static inline void blk_mq_tag_idle(struct blk_mq_hw_ctx *hctx)
{
- if (!(hctx->flags & BLK_MQ_F_TAG_SHARED))
- return;
-
- __blk_mq_tag_idle(hctx);
+ if (hctx->flags & BLK_MQ_F_TAG_SHARED)
+ __blk_mq_tag_idle(hctx);
}

#endif
--
1.9.3

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