linux-kernel - [PATCH 0/2] small optimization for accessing queue map

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Message-Id: <1548325533-1695-1-git-send-email-jianchao.w.wang@oracle.com>
Date:   Thu, 24 Jan 2019 18:25:31 +0800
From:   Jianchao Wang <jianchao.w.wang@...cle.com>
To:     axboe@...nel.dk
Cc:     linux-block@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: [PATCH 0/2] small optimization for accessing 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

 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