linux-kernel - Re: [PATCH v5 00/11] Use obj_cgroup APIs to charge the LRU pages

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Message-Id: <20220530141711.6cf70dcf200e28aa40407f6e@linux-foundation.org>
Date:   Mon, 30 May 2022 14:17:11 -0700
From:   Andrew Morton <akpm@...ux-foundation.org>
To:     Muchun Song <songmuchun@...edance.com>
Cc:     hannes@...xchg.org, mhocko@...nel.org, roman.gushchin@...ux.dev,
        shakeelb@...gle.com, cgroups@...r.kernel.org, linux-mm@...ck.org,
        linux-kernel@...r.kernel.org, duanxiongchun@...edance.com,
        longman@...hat.com
Subject: Re: [PATCH v5 00/11] Use obj_cgroup APIs to charge the LRU pages

On Mon, 30 May 2022 15:49:08 +0800 Muchun Song <songmuchun@...edance.com> wrote:

> This version is rebased on v5.18.

Not a great choice of base, really.  mm-stable or mm-unstable or
linux-next or even linus-of-the-day are all much more up to date.

Although the memcg reviewer tags are pretty thin, I was going to give
it a run.  But after fixing a bunch of conflicts I got about halfway
through then gave up on a big snarl in get_obj_cgroup_from_current().

> RFC v1: https://lore.kernel.org/all/20210330101531.82752-1-songmuchun@bytedance.com/

Surprising, that was over a year ago.  Why has is taken so long?