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Date: Wed, 25 Mar 2026 19:05:47 -0700
From: Andrew Morton <akpm@linux-foundation.org>
To: Shakeel Butt <shakeel.butt@linux.dev>
Cc: lsf-pc@lists.linux-foundation.org, Johannes Weiner <hannes@cmpxchg.org>,
 David Hildenbrand <david@kernel.org>, Michal Hocko <mhocko@kernel.org>, Qi
 Zheng <zhengqi.arch@bytedance.com>, Lorenzo Stoakes <ljs@kernel.org>, Chen
 Ridong <chenridong@huaweicloud.com>, Emil Tsalapatis
 <emil@etsalapatis.com>, Alexei Starovoitov <ast@kernel.org>, Axel Rasmussen
 <axelrasmussen@google.com>, Yuanchu Xie <yuanchu@google.com>, Wei Xu
 <weixugc@google.com>, Kairui Song <ryncsn@gmail.com>, Matthew Wilcox
 <willy@infradead.org>, Nhat Pham <nphamcs@gmail.com>, Gregory Price
 <gourry@gourry.net>, Barry Song <21cnbao@gmail.com>, David Stevens
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 <rientjes@google.com>, Kalesh Singh <kaleshsingh@google.com>, wangzicheng
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 Wang <baolin.wang@linux.alibaba.com>, Suren Baghdasaryan
 <surenb@google.com>, Meta kernel team <kernel-team@meta.com>,
 bpf@vger.kernel.org, linux-mm@kvack.org, linux-kernel@vger.kernel.org
Subject: Re: [LSF/MM/BPF TOPIC] Towards Unified and Extensible Memory
 Reclaim (reclaim_ext)
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On Wed, 25 Mar 2026 14:06:37 -0700 Shakeel Butt <shakeel.butt@linux.dev> wrote:

> We should unify both algorithms into a single code path. 

I'm here to ask the questions which others fear will sound dumb.

Is it indeed the plan to maintain both implementations?  I thought the
long-term ambition was to knock MGLRU into shape and to drop the legacy LRU?

And that Linus has expressed such a desire, but my googling fails me.