linux-kernel - [PATCH 0/2] blk-mq: small optimization for accessing of queue map

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Message-Id: <1545876041-16076-1-git-send-email-jianchao.w.wang@oracle.com>
Date:   Thu, 27 Dec 2018 10:00:39 +0800
From:   Jianchao Wang <jianchao.w.wang@...cle.com>
To:     axboe@...nel.dk
Cc:     ming.lei@...hat.com, linux-block@...r.kernel.org,
        linux-kernel@...r.kernel.org
Subject: [PATCH 0/2] blk-mq: small optimization for accessing of queue map

Hi Jens

These two patches are small optimization for accessing the queue mapping
in hot path. It saves the queue mapping results into blk_mq_ctx directly,
then we needn't do the complicated bounce on queue_hw_ctx[] map[] and
mq_map[].

Jianchao Wang(2)
  blk-mq: save queue mapping result into ctx directly
  blk-mq: save default hctx into ctx->hctxs for not-supported type

block/blk-mq-sched.c |  2 +-
block/blk-mq-tag.c   |  2 +-
block/blk-mq.c       | 13 ++++++++++---
block/blk-mq.h       | 20 +++++++++-----------
block/blk.h          |  2 +-
5 files changed, 22 insertions(+), 17 deletions(-)

Thanks
Jianchao