linux-kernel - Re: [RFC PATCH -next 2/2] mm/mglru: remove memcg lru

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Message-ID: <20251204183437.GB481418@cmpxchg.org>
Date: Thu, 4 Dec 2025 13:34:37 -0500
From: Johannes Weiner <hannes@...xchg.org>
To: Chen Ridong <chenridong@...weicloud.com>
Cc: akpm@...ux-foundation.org, axelrasmussen@...gle.com, yuanchu@...gle.com,
	weixugc@...gle.com, david@...nel.org, lorenzo.stoakes@...cle.com,
	Liam.Howlett@...cle.com, vbabka@...e.cz, rppt@...nel.org,
	surenb@...gle.com, mhocko@...e.com, corbet@....net,
	roman.gushchin@...ux.dev, shakeel.butt@...ux.dev,
	muchun.song@...ux.dev, yuzhao@...gle.com,
	zhengqi.arch@...edance.com, linux-mm@...ck.org,
	linux-doc@...r.kernel.org, linux-kernel@...r.kernel.org,
	cgroups@...r.kernel.org, lujialin4@...wei.com,
	chenridong@...wei.com
Subject: Re: [RFC PATCH -next 2/2] mm/mglru: remove memcg lru

On Thu, Dec 04, 2025 at 12:31:24PM +0000, Chen Ridong wrote:
> From: Chen Ridong <chenridong@...wei.com>
> 
> Now that the previous patch has switched global reclaim to use
> mem_cgroup_iter, the specialized memcg LRU infrastructure is no longer
> needed. This patch removes all related code:
> 
> Signed-off-by: Chen Ridong <chenridong@...wei.com>

Looks good to me!

Acked-by: Johannes Weiner <hannes@...xchg.org>

> ---
>  Documentation/mm/multigen_lru.rst |  30 ------
>  include/linux/mmzone.h            |  89 -----------------
>  mm/memcontrol-v1.c                |   6 --
>  mm/memcontrol.c                   |   4 -
>  mm/mm_init.c                      |   1 -
>  mm/vmscan.c                       | 153 +-----------------------------
>  6 files changed, 1 insertion(+), 282 deletions(-)