linux-kernel - Re: [PATCH v2 1/4] mm: thp: replace folio_memcg() with folio_memcg

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Message-ID: <7ia4plbg6wsw.fsf@castle.c.googlers.com>
Date: Wed, 24 Sep 2025 09:10:07 +0000
From: Roman Gushchin <roman.gushchin@...ux.dev>
To: Qi Zheng <zhengqi.arch@...edance.com>
Cc: hannes@...xchg.org,  hughd@...gle.com,  mhocko@...e.com,
  shakeel.butt@...ux.dev,  muchun.song@...ux.dev,  david@...hat.com,
  lorenzo.stoakes@...cle.com,  ziy@...dia.com,  harry.yoo@...cle.com,
  baolin.wang@...ux.alibaba.com,  Liam.Howlett@...cle.com,
  npache@...hat.com,  ryan.roberts@....com,  dev.jain@....com,
  baohua@...nel.org,  lance.yang@...ux.dev,  akpm@...ux-foundation.org,
  linux-mm@...ck.org,  linux-kernel@...r.kernel.org,
  cgroups@...r.kernel.org,  Muchun Song <songmuchun@...edance.com>
Subject: Re: [PATCH v2 1/4] mm: thp: replace folio_memcg() with
 folio_memcg_charged()

Qi Zheng <zhengqi.arch@...edance.com> writes:

> From: Muchun Song <songmuchun@...edance.com>
>
> folio_memcg_charged() is intended for use when the user is unconcerned
> about the returned memcg pointer. It is more efficient than folio_memcg().
> Therefore, replace folio_memcg() with folio_memcg_charged().
>
> Signed-off-by: Muchun Song <songmuchun@...edance.com>
> Acked-by: Johannes Weiner <hannes@...xchg.org>
> Acked-by: Shakeel Butt <shakeel.butt@...ux.dev>
> Acked-by: David Hildenbrand <david@...hat.com>
> Signed-off-by: Qi Zheng <zhengqi.arch@...edance.com>

Reviewed-by: Roman Gushchin <roman.gushchin@...ux.dev>