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

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Message-ID: <yi5eghzjegjvu7tq5b3os6cxt6lcgfpu2xv7m3yiywppq2xcl6@lneq7zbtm6kl>
Date: Fri, 19 Sep 2025 14:30:49 -0700
From: Shakeel Butt <shakeel.butt@...ux.dev>
To: Qi Zheng <zhengqi.arch@...edance.com>
Cc: hannes@...xchg.org, hughd@...gle.com, mhocko@...e.com, 
	roman.gushchin@...ux.dev, muchun.song@...ux.dev, david@...hat.com, 
	lorenzo.stoakes@...cle.com, ziy@...dia.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 1/4] mm: thp: replace folio_memcg() with
 folio_memcg_charged()

On Fri, Sep 19, 2025 at 11:46:32AM +0800, Qi Zheng wrote:
> 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>
> Signed-off-by: Qi Zheng <zhengqi.arch@...edance.com>

Acked-by: Shakeel Butt <shakeel.butt@...ux.dev>