linux-kernel - Re: [PATCH] block: fix comments about choosing request list

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Date:   Tue, 16 Oct 2018 17:59:06 +0300
From:   Konstantin Khlebnikov <khlebnikov@...dex-team.ru>
To:     Jens Axboe <axboe@...nel.dk>, linux-kernel@...r.kernel.org
Subject: Re: [PATCH] block: fix comments about choosing request list

On 16.10.2018 17:45, Jens Axboe wrote:
> On 10/16/18 2:53 AM, Konstantin Khlebnikov wrote:
>> Request list is determined by blk_get_rl() and without queue_lock.
> 
> This code is going away shortly, so let's just leave the comment
> alone.
> 

Ok, I see some patches in flight for 420

Probably they also fixes linking non-bio based request with cgroups?
I've found that old stack calls blk_rq_set_rl() for all request
while MQ do this only in blk_mq_bio_to_request,
in blk_mq_get_request() request gets only io-context.