Messages in this thread Patch in this message | | | From | Xianting Tian <> | Subject | [PATCH] blk-mq: add helper function to test hctx inactive | Date | Wed, 14 Oct 2020 20:56:48 +0800 |
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Introduce helper function blk_mq_hctx_inactive() to test BLK_MQ_S_INACTIVE as we already done for BLK_MQ_S_STOPPED.
Signed-off-by: Xianting Tian <tian.xianting@h3c.com> --- block/blk-mq-tag.c | 2 +- block/blk-mq.h | 5 +++++ 2 files changed, 6 insertions(+), 1 deletion(-)
diff --git a/block/blk-mq-tag.c b/block/blk-mq-tag.c index 32d82e23b..3119572bc 100644 --- a/block/blk-mq-tag.c +++ b/block/blk-mq-tag.c @@ -153,7 +153,7 @@ unsigned int blk_mq_get_tag(struct blk_mq_alloc_data *data) * Give up this allocation if the hctx is inactive. The caller will * retry on an active hctx. */ - if (unlikely(test_bit(BLK_MQ_S_INACTIVE, &data->hctx->state))) { + if (unlikely(blk_mq_hctx_inactive(data->hctx))) { blk_mq_put_tag(tags, data->ctx, tag + tag_offset); return BLK_MQ_NO_TAG; } diff --git a/block/blk-mq.h b/block/blk-mq.h index 863a2f334..9813269c2 100644 --- a/block/blk-mq.h +++ b/block/blk-mq.h @@ -171,6 +171,11 @@ static inline bool blk_mq_hctx_stopped(struct blk_mq_hw_ctx *hctx) return test_bit(BLK_MQ_S_STOPPED, &hctx->state); } +static inline bool blk_mq_hctx_inactive(struct blk_mq_hw_ctx *hctx) +{ + return test_bit(BLK_MQ_S_INACTIVE, &hctx->state); +} + static inline bool blk_mq_hw_queue_mapped(struct blk_mq_hw_ctx *hctx) { return hctx->nr_ctx && hctx->tags; -- 2.17.1
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