Extract the logic of polling one hw queue and related statistics handling out as the helper function.
Signed-off-by: Jeffle Xu <[email protected]> --- 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 214fa30b460a..6ef9f0b038c2 100644 --- a/block/blk-mq.c +++ b/block/blk-mq.c @@ -3876,11 +3876,8 @@ 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 6a7b693b9917..b406cab347d6 100644 --- a/include/linux/blk-mq.h +++ b/include/linux/blk-mq.h @@ -614,6 +614,19 @@ static inline void blk_rq_bio_prep(struct request *rq, struct bio *bio, rq->rq_disk = bio->bi_bdev->bd_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 [email protected] https://listman.redhat.com/mailman/listinfo/dm-devel
