linux-kernel - Re: [PATCH v4 0/2] mm: add per-order mTHP alloc and swpout counters

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Date: Fri, 5 Apr 2024 13:11:40 -0700
From: Andrew Morton <akpm@...ux-foundation.org>
To: Barry Song <21cnbao@...il.com>
Cc: david@...hat.com, linux-mm@...ck.org, ryan.roberts@....com,
 cerasuolodomenico@...il.com, chrisl@...nel.org, kasong@...cent.com,
 peterx@...hat.com, surenb@...gle.com, v-songbaohua@...o.com,
 willy@...radead.org, yosryahmed@...gle.com, yuzhao@...gle.com,
 linux-kernel@...r.kernel.org
Subject: Re: [PATCH v4 0/2] mm: add per-order mTHP alloc and swpout counters

On Fri,  5 Apr 2024 23:27:02 +1300 Barry Song <21cnbao@...il.com> wrote:

> The patchset introduces a framework to facilitate mTHP counters, starting
> with the allocation and swap-out counters. Currently, only four new nodes
> are appended to the stats directory for each mTHP size.
> 
> /sys/kernel/mm/transparent_hugepage/hugepages-<size>/stats
> 	anon_alloc
> 	anon_alloc_fallback
> 	anon_swpout
> 	anon_swpout_fallback

Please let's get these documented? 
Documentation/admin-guide/mm/transhuge.rst seems to be the place, and
under Documentation/ABI.