linux-kernel - Re: [RFC PATCH 0/2] mm: improve folio refcount scalability

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Message-ID: <aWTfduyPXjhymyzW@thinkstation>
Date: Mon, 12 Jan 2026 11:49:45 +0000
From: Kiryl Shutsemau <kirill@...temov.name>
To: Gladyshev Ilya <gladyshev.ilya1@...artners.com>
Cc: guohanjun@...wei.com, wangkefeng.wang@...wei.com, 
	weiyongjun1@...wei.com, yusongping@...wei.com, leijitang@...wei.com, 
	artem.kuzin@...wei.com, stepanov.anatoly@...wei.com, alexander.grubnikov@...wei.com, 
	gorbunov.ivan@...artners.com, akpm@...ux-foundation.org, david@...nel.org, 
	lorenzo.stoakes@...cle.com, Liam.Howlett@...cle.com, vbabka@...e.cz, rppt@...nel.org, 
	surenb@...gle.com, mhocko@...e.com, ziy@...dia.com, harry.yoo@...cle.com, 
	willy@...radead.org, yuzhao@...gle.com, baolin.wang@...ux.alibaba.com, 
	muchun.song@...ux.dev, linux-mm@...ck.org, linux-kernel@...r.kernel.org
Subject: Re: [RFC PATCH 0/2] mm: improve folio refcount scalability

On Mon, Jan 12, 2026 at 11:30:38AM +0300, Gladyshev Ilya wrote:
> Gentle ping on this proposal

I generally like the idea, but I would like to hear from folks who
actually understand serialization.

Also, do you have number for "a full CAS loop when the counter is
approaching overflow" thing?

-- 
  Kiryl Shutsemau / Kirill A. Shutemov