linux-kernel - Re: [PATCH 7/8] mm: memcontrol: consolidate lruvec stat flushing

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Message-ID: <CALvZod4ex5V2Xs_6YHmmLJw91rjKTSZ9XobXiRx4ftj=L=A6MA@mail.gmail.com>
Date:   Sun, 7 Feb 2021 18:28:37 -0800
From:   Shakeel Butt <shakeelb@...gle.com>
To:     Johannes Weiner <hannes@...xchg.org>
Cc:     Andrew Morton <akpm@...ux-foundation.org>,
        Tejun Heo <tj@...nel.org>, Michal Hocko <mhocko@...e.com>,
        Roman Gushchin <guro@...com>, Linux MM <linux-mm@...ck.org>,
        Cgroups <cgroups@...r.kernel.org>,
        LKML <linux-kernel@...r.kernel.org>,
        Kernel Team <kernel-team@...com>
Subject: Re: [PATCH 7/8] mm: memcontrol: consolidate lruvec stat flushing

On Fri, Feb 5, 2021 at 10:28 AM Johannes Weiner <hannes@...xchg.org> wrote:
>
> There are two functions to flush the per-cpu data of an lruvec into
> the rest of the cgroup tree: when the cgroup is being freed, and when
> a CPU disappears during hotplug. The difference is whether all CPUs or
> just one is being collected, but the rest of the flushing code is the
> same. Merge them into one function and share the common code.
>
> Signed-off-by: Johannes Weiner <hannes@...xchg.org>

Reviewed-by: Shakeel Butt <shakeelb@...gle.com>

BTW what about the lruvec stats? Why not convert them to rstat as well?