diff options
| author | Kundan Kumar <kundan.kumar@samsung.com> | 2023-11-23 20:03:31 +0100 |
|---|---|---|
| committer | Jens Axboe <axboe@kernel.dk> | 2023-12-02 02:29:18 +0100 |
| commit | 847c5bcdfb41704e52930783b028302f415a3209 (patch) | |
| tree | 5d4f1b58567dfda825648d621c88be920555693d /block/blk-rq-qos.h | |
| parent | io_uring: remove uring_cmd cookie (diff) | |
| download | linux-847c5bcdfb41704e52930783b028302f415a3209.tar.xz linux-847c5bcdfb41704e52930783b028302f415a3209.zip | |
block: skip QUEUE_FLAG_STATS and rq-qos for passthrough io
Write-back throttling (WBT) enables QUEUE_FLAG_STATS on the request
queue. But WBT does not make sense for passthrough io, so skip
QUEUE_FLAG_STATS processing.
Also skip rq_qos_issue/done for passthrough io.
Overall, the change gives ~11% hike in peak performance.
Signed-off-by: Kundan Kumar <kundan.kumar@samsung.com>
Signed-off-by: Kanchan Joshi <joshi.k@samsung.com>
Link: https://lore.kernel.org/r/20231123190331.7934-1-kundan.kumar@samsung.com
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Diffstat (limited to '')
| -rw-r--r-- | block/blk-rq-qos.h | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/block/blk-rq-qos.h b/block/blk-rq-qos.h index f48ee150d667..37245c97ee61 100644 --- a/block/blk-rq-qos.h +++ b/block/blk-rq-qos.h @@ -118,7 +118,7 @@ static inline void rq_qos_cleanup(struct request_queue *q, struct bio *bio) static inline void rq_qos_done(struct request_queue *q, struct request *rq) { - if (q->rq_qos) + if (q->rq_qos && !blk_rq_is_passthrough(rq)) __rq_qos_done(q->rq_qos, rq); } |