From: Jeffle Xu <jefflexu@linux.alibaba.com> To: snitzer@redhat.com, axboe@kernel.dk Cc: hch@lst.de, ming.lei@redhat.com, linux-block@vger.kernel.org, dm-devel@redhat.com, io-uring@vger.kernel.org, joseph.qi@linux.alibaba.com, caspar@linux.alibaba.com Subject: [PATCH v4 05/12] blk-mq: extract one helper function polling hw queue Date: Sat, 20 Feb 2021 19:06:30 +0800 [thread overview] Message-ID: <20210220110637.50305-6-jefflexu@linux.alibaba.com> (raw) In-Reply-To: <20210220110637.50305-1-jefflexu@linux.alibaba.com> Extract the logic of polling one hw queue and related statistics handling out as the helper function. Signed-off-by: Jeffle Xu <jefflexu@linux.alibaba.com> --- block/blk-mq.c | 5 +---- include/linux/blk-mq.h | 13 +++++++++++++ 2 files changed, 14 insertions(+), 4 deletions(-) diff --git a/block/blk-mq.c b/block/blk-mq.c index c18bc23834a0..b4de2b37b826 100644 --- a/block/blk-mq.c +++ b/block/blk-mq.c @@ -3850,11 +3850,8 @@ int blk_mq_poll(struct request_queue *q, blk_qc_t cookie, bool spin) do { int ret; - hctx->poll_invoked++; - - ret = q->mq_ops->poll(hctx); + ret = blk_mq_poll_hctx(q, hctx); if (ret > 0) { - hctx->poll_success++; __set_current_state(TASK_RUNNING); return ret; } diff --git a/include/linux/blk-mq.h b/include/linux/blk-mq.h index adc789d5888e..cf1910c6d5ae 100644 --- a/include/linux/blk-mq.h +++ b/include/linux/blk-mq.h @@ -606,6 +606,19 @@ static inline void blk_rq_bio_prep(struct request *rq, struct bio *bio, rq->rq_disk = bio->bi_disk; } +static inline int blk_mq_poll_hctx(struct request_queue *q, + struct blk_mq_hw_ctx *hctx) +{ + int ret; + + hctx->poll_invoked++; + ret = q->mq_ops->poll(hctx); + if (ret > 0) + hctx->poll_success++; + + return ret; +} + blk_qc_t blk_mq_submit_bio(struct bio *bio); int blk_mq_poll(struct request_queue *q, blk_qc_t cookie, bool spin); void blk_mq_hctx_set_fq_lock_class(struct blk_mq_hw_ctx *hctx, -- 2.27.0
WARNING: multiple messages have this Message-ID (diff)
From: Jeffle Xu <jefflexu@linux.alibaba.com> To: snitzer@redhat.com, axboe@kernel.dk Cc: caspar@linux.alibaba.com, io-uring@vger.kernel.org, linux-block@vger.kernel.org, joseph.qi@linux.alibaba.com, dm-devel@redhat.com, ming.lei@redhat.com, hch@lst.de Subject: [dm-devel] [PATCH v4 05/12] blk-mq: extract one helper function polling hw queue Date: Sat, 20 Feb 2021 19:06:30 +0800 [thread overview] Message-ID: <20210220110637.50305-6-jefflexu@linux.alibaba.com> (raw) In-Reply-To: <20210220110637.50305-1-jefflexu@linux.alibaba.com> Extract the logic of polling one hw queue and related statistics handling out as the helper function. Signed-off-by: Jeffle Xu <jefflexu@linux.alibaba.com> --- block/blk-mq.c | 5 +---- include/linux/blk-mq.h | 13 +++++++++++++ 2 files changed, 14 insertions(+), 4 deletions(-) diff --git a/block/blk-mq.c b/block/blk-mq.c index c18bc23834a0..b4de2b37b826 100644 --- a/block/blk-mq.c +++ b/block/blk-mq.c @@ -3850,11 +3850,8 @@ int blk_mq_poll(struct request_queue *q, blk_qc_t cookie, bool spin) do { int ret; - hctx->poll_invoked++; - - ret = q->mq_ops->poll(hctx); + ret = blk_mq_poll_hctx(q, hctx); if (ret > 0) { - hctx->poll_success++; __set_current_state(TASK_RUNNING); return ret; } diff --git a/include/linux/blk-mq.h b/include/linux/blk-mq.h index adc789d5888e..cf1910c6d5ae 100644 --- a/include/linux/blk-mq.h +++ b/include/linux/blk-mq.h @@ -606,6 +606,19 @@ static inline void blk_rq_bio_prep(struct request *rq, struct bio *bio, rq->rq_disk = bio->bi_disk; } +static inline int blk_mq_poll_hctx(struct request_queue *q, + struct blk_mq_hw_ctx *hctx) +{ + int ret; + + hctx->poll_invoked++; + ret = q->mq_ops->poll(hctx); + if (ret > 0) + hctx->poll_success++; + + return ret; +} + blk_qc_t blk_mq_submit_bio(struct bio *bio); int blk_mq_poll(struct request_queue *q, blk_qc_t cookie, bool spin); void blk_mq_hctx_set_fq_lock_class(struct blk_mq_hw_ctx *hctx, -- 2.27.0 -- dm-devel mailing list dm-devel@redhat.com https://listman.redhat.com/mailman/listinfo/dm-devel
next prev parent reply other threads:[~2021-02-20 11:09 UTC|newest] Thread overview: 32+ messages / expand[flat|nested] mbox.gz Atom feed top 2021-02-20 11:06 [PATCH v4 00/12] dm: support IO polling Jeffle Xu 2021-02-20 11:06 ` [dm-devel] " Jeffle Xu 2021-02-20 11:06 ` [PATCH v4 01/12] block: move definition of blk_qc_t to types.h Jeffle Xu 2021-02-20 11:06 ` [dm-devel] " Jeffle Xu 2021-02-20 11:06 ` [PATCH v4 02/12] block: add queue_to_disk() to get gendisk from request_queue Jeffle Xu 2021-02-20 11:06 ` [dm-devel] " Jeffle Xu 2021-02-20 11:06 ` [PATCH v4 03/12] block: add poll method to support bio-based IO polling Jeffle Xu 2021-02-20 11:06 ` [dm-devel] " Jeffle Xu 2021-02-20 11:06 ` [PATCH v4 04/12] block: add poll_capable " Jeffle Xu 2021-02-20 11:06 ` [dm-devel] " Jeffle Xu 2021-02-20 11:06 ` Jeffle Xu [this message] 2021-02-20 11:06 ` [dm-devel] [PATCH v4 05/12] blk-mq: extract one helper function polling hw queue Jeffle Xu 2021-02-20 11:06 ` [PATCH v4 06/12] blk-mq: add iterator for polling hw queues Jeffle Xu 2021-02-20 11:06 ` [dm-devel] " Jeffle Xu 2021-02-20 11:06 ` [PATCH v4 07/12] blk-mq: add one helper function getting hw queue Jeffle Xu 2021-02-20 11:06 ` [dm-devel] " Jeffle Xu 2021-02-20 11:06 ` [PATCH v4 08/12] dm: always return BLK_QC_T_NONE for bio-based device Jeffle Xu 2021-02-20 11:06 ` [dm-devel] " Jeffle Xu 2021-02-20 11:06 ` [PATCH v4 09/12] nvme/pci: don't wait for locked polling queue Jeffle Xu 2021-02-20 11:06 ` [dm-devel] " Jeffle Xu 2021-02-20 11:06 ` [PATCH v4 10/12] block: fastpath for bio-based polling Jeffle Xu 2021-02-20 11:06 ` [dm-devel] " Jeffle Xu 2021-02-20 11:06 ` [PATCH v4 11/12] block: sub-fastpath " Jeffle Xu 2021-02-20 11:06 ` [dm-devel] " Jeffle Xu 2021-02-20 11:06 ` [PATCH v4 12/12] dm: support IO polling for bio-based dm device Jeffle Xu 2021-02-20 11:06 ` [dm-devel] " Jeffle Xu 2021-02-23 3:55 ` [PATCH v4 00/12] dm: support IO polling JeffleXu 2021-02-23 3:55 ` [dm-devel] " JeffleXu 2021-02-23 20:54 ` Mike Snitzer 2021-02-23 20:54 ` [dm-devel] " Mike Snitzer 2021-02-24 1:44 ` JeffleXu 2021-02-24 1:44 ` [dm-devel] " JeffleXu
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