linux-kernel - Re: [PATCH] memcg: remove unused mem_cgroup_from

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Message-ID: <ZHGAcaqOx/e8lqwV@casper.infradead.org>
Date:   Sat, 27 May 2023 05:00:49 +0100
From:   Matthew Wilcox <willy@...radead.org>
To:     Miaohe Lin <linmiaohe@...wei.com>
Cc:     Vasily Averin <vasily.averin@...ux.dev>, hannes@...xchg.org,
        mhocko@...nel.org, roman.gushchin@...ux.dev, shakeelb@...gle.com,
        akpm@...ux-foundation.org, muchun.song@...ux.dev,
        cgroups@...r.kernel.org, linux-mm@...ck.org,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH] memcg: remove unused mem_cgroup_from_obj()

On Sat, May 27, 2023 at 06:31:26PM +0800, Miaohe Lin wrote:
> The function mem_cgroup_from_obj() is not used anymore. Remove it and
> clean up relevant comments.

You should have looked at the git history to see why it was created
and who used it.

Shakeel, Vasily, are you going to retry adding commit 1d0403d20f6c?