linux-kernel - Re: [PATCH v5 1/7] mm: memcontrol: fix NR_ANON

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Message-ID: <CALvZod7WqYEVOD0o7y+JVcTjdF8N=cbZHEeXa3VvkMsJDQjeKg@mail.gmail.com>
Date:   Wed, 23 Dec 2020 13:01:07 -0800
From:   Shakeel Butt <shakeelb@...gle.com>
To:     Muchun Song <songmuchun@...edance.com>
Cc:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>, rafael@...nel.org,
        Alexey Dobriyan <adobriyan@...il.com>,
        Andrew Morton <akpm@...ux-foundation.org>,
        Johannes Weiner <hannes@...xchg.org>,
        Michal Hocko <mhocko@...nel.org>,
        Vladimir Davydov <vdavydov.dev@...il.com>,
        Hugh Dickins <hughd@...gle.com>, Roman Gushchin <guro@...com>,
        Sami Tolvanen <samitolvanen@...gle.com>,
        Feng Tang <feng.tang@...el.com>, Neil Brown <neilb@...e.de>,
        Joonsoo Kim <iamjoonsoo.kim@....com>,
        Randy Dunlap <rdunlap@...radead.org>,
        LKML <linux-kernel@...r.kernel.org>,
        linux-fsdevel <linux-fsdevel@...r.kernel.org>,
        Linux MM <linux-mm@...ck.org>,
        Cgroups <cgroups@...r.kernel.org>,
        Michal Hocko <mhocko@...e.com>,
        Pankaj Gupta <pankaj.gupta@...ud.ionos.com>
Subject: Re: [PATCH v5 1/7] mm: memcontrol: fix NR_ANON_THPS accounting in
 charge moving

On Wed, Dec 16, 2020 at 7:45 PM Muchun Song <songmuchun@...edance.com> wrote:
>
> The unit of NR_ANON_THPS is HPAGE_PMD_NR already. So it should inc/dec
> by one rather than nr_pages.
>
> Fixes: 468c398233da ("mm: memcontrol: switch to native NR_ANON_THPS counter")
> Signed-off-by: Muchun Song <songmuchun@...edance.com>
> Acked-by: Michal Hocko <mhocko@...e.com>
> Acked-by: Johannes Weiner <hannes@...xchg.org>
> Acked-by: Pankaj Gupta <pankaj.gupta@...ud.ionos.com>
> Reviewed-by: Roman Gushchin <guro@...com>

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