diff options
| author | Liu Song <liusong@linux.alibaba.com> | 2022-06-25 23:15:21 +0800 |
|---|---|---|
| committer | Jens Axboe <axboe@kernel.dk> | 2022-06-27 06:29:12 -0600 |
| commit | ee78ec1077d37d1a4a0860589a65df8ae6d2255c (patch) | |
| tree | 63c069d3020b173b26d3ec70df9dabac0e1c4648 | |
| parent | a78418e6a04c93b9ffd3f0f601c5cb10612acb7f (diff) | |
blk-mq: blk_mq_tag_busy is no need to return a value
Currently "blk_mq_tag_busy" return value has no effect, so adjust it.
Some code implementations have also been adjusted to enhance
readability.
Signed-off-by: Liu Song <liusong@linux.alibaba.com>
Link: https://lore.kernel.org/r/1656170121-1619-1-git-send-email-liusong@linux.alibaba.com
Signed-off-by: Jens Axboe <axboe@kernel.dk>
| -rw-r--r-- | block/blk-mq-tag.c | 18 | ||||
| -rw-r--r-- | block/blk-mq-tag.h | 10 |
2 files changed, 11 insertions, 17 deletions
diff --git a/block/blk-mq-tag.c b/block/blk-mq-tag.c index 2dcd738c6952..3cfffef1feb3 100644 --- a/block/blk-mq-tag.c +++ b/block/blk-mq-tag.c @@ -37,29 +37,25 @@ static void blk_mq_update_wake_batch(struct blk_mq_tags *tags, * to get tag when first time, the other shared-tag users could reserve * budget for it. */ -bool __blk_mq_tag_busy(struct blk_mq_hw_ctx *hctx) +void __blk_mq_tag_busy(struct blk_mq_hw_ctx *hctx) { unsigned int users; if (blk_mq_is_shared_tags(hctx->flags)) { struct request_queue *q = hctx->queue; - if (test_bit(QUEUE_FLAG_HCTX_ACTIVE, &q->queue_flags) || - test_and_set_bit(QUEUE_FLAG_HCTX_ACTIVE, &q->queue_flags)) { - return true; - } + if (test_bit(QUEUE_FLAG_HCTX_ACTIVE, &q->queue_flags)) + return; + set_bit(QUEUE_FLAG_HCTX_ACTIVE, &q->queue_flags); } else { - if (test_bit(BLK_MQ_S_TAG_ACTIVE, &hctx->state) || - test_and_set_bit(BLK_MQ_S_TAG_ACTIVE, &hctx->state)) { - return true; - } + if (test_bit(BLK_MQ_S_TAG_ACTIVE, &hctx->state)) + return; + set_bit(BLK_MQ_S_TAG_ACTIVE, &hctx->state); } users = atomic_inc_return(&hctx->tags->active_queues); blk_mq_update_wake_batch(hctx->tags, users); - - return true; } /* diff --git a/block/blk-mq-tag.h b/block/blk-mq-tag.h index 5668e28be0b7..91ff37e3b43d 100644 --- a/block/blk-mq-tag.h +++ b/block/blk-mq-tag.h @@ -47,15 +47,13 @@ enum { BLK_MQ_TAG_MAX = BLK_MQ_NO_TAG - 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) +static inline void blk_mq_tag_busy(struct blk_mq_hw_ctx *hctx) { - if (!(hctx->flags & BLK_MQ_F_TAG_QUEUE_SHARED)) - return false; - - return __blk_mq_tag_busy(hctx); + if (hctx->flags & BLK_MQ_F_TAG_QUEUE_SHARED) + __blk_mq_tag_busy(hctx); } static inline void blk_mq_tag_idle(struct blk_mq_hw_ctx *hctx) |