linux-kernel - Re: [PATCH 10/15] blkcg: remove bio->bi_css and instead use bio->bi

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Message-ID: <20180831154620.ivdpptlo7o6ipebu@destiny>
Date:   Fri, 31 Aug 2018 11:46:21 -0400
From:   Josef Bacik <josef@...icpanda.com>
To:     Dennis Zhou <dennisszhou@...il.com>
Cc:     Jens Axboe <axboe@...nel.dk>, Tejun Heo <tj@...nel.org>,
        Johannes Weiner <hannes@...xchg.org>,
        Josef Bacik <josef@...icpanda.com>, kernel-team@...com,
        linux-block@...r.kernel.org, cgroups@...r.kernel.org,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH 10/15] blkcg: remove bio->bi_css and instead use
 bio->bi_blkg

On Thu, Aug 30, 2018 at 09:53:51PM -0400, Dennis Zhou wrote:
> From: "Dennis Zhou (Facebook)" <dennisszhou@...il.com>
> 
> Prior patches ensured that all bios are now associated with some blkg.
> This now makes bio->bi_css unnecessary as blkg maintains a reference to
> the blkcg already.
> 
> This patch removes the field bi_css and transfers corresponding uses to
> access via bi_blkg.
> 
> Signed-off-by: Dennis Zhou <dennisszhou@...il.com>

Reviewed-by: Josef Bacik <josef@...icpanda.com>

Thanks,

Josef