linux-kernel - Re: blk-mq: check on cpu id when there is only one ctx mapping

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Message-ID: <bb0cbd67-12ff-476c-628c-0e6dfd2cd482@acm.org>
Date:   Sun, 11 Jun 2023 08:21:59 -0700
From:   Bart Van Assche <bvanassche@....org>
To:     Ed Tsai <ed.tsai@...iatek.com>, axboe@...nel.dk
Cc:     kbusch@...nel.org, liusong@...ux.alibaba.com,
        linux-block@...r.kernel.org, linux-kernel@...r.kernel.org,
        linux-arm-kernel@...ts.infradead.org,
        linux-mediatek@...ts.infradead.org, wsd_upstream@...iatek.com,
        peter.wang@...iatek.com, stanley.chu@...iatek.com,
        powen.kao@...iatek.com, alice.chao@...iatek.com,
        naomi.chu@...iatek.com
Subject: Re: blk-mq: check on cpu id when there is only one ctx mapping

On 5/31/23 01:38, Ed Tsai wrote:
> commit f168420 ("blk-mq: don't redirect completion for hctx withs only
> one ctx mapping") When nvme applies a 1:1 mapping of hctx and ctx, there
> will be no remote request.

The above sentence is incomprehensible. Please make it comprehensible.

> Signed-off-by: Ed Tsai <ed.tsai@...iatek.com>
> Signed-off-by: Po-Wen Kao <powen.kao@...iatek.com>

This patch comes from Keith Busch. Why has his name not been mentioned? 
See also 
https://lore.kernel.org/linux-block/ZHY2TUrKVBj2xGE2@kbusch-mbp.dhcp.thefacebook.com/.

Bart.