linux-kernel - Re: [PATCH v7 12/12] Documentation: mm: update the admin guide for mTHP collapse

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Message-ID: <CAA1CXcDOEdJRvZMu2Fyy4wsdy8k8nj4c45s4JanO9HzyJgyXOw@mail.gmail.com>
Date: Sat, 7 Jun 2025 06:57:36 -0600
From: Nico Pache <npache@...hat.com>
To: Dev Jain <dev.jain@....com>
Cc: linux-mm@...ck.org, linux-doc@...r.kernel.org, 
	linux-kernel@...r.kernel.org, linux-trace-kernel@...r.kernel.org, 
	david@...hat.com, ziy@...dia.com, baolin.wang@...ux.alibaba.com, 
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	rientjes@...gle.com, mhocko@...e.com, rdunlap@...radead.org, 
	Bagas Sanjaya <bagasdotme@...il.com>
Subject: Re: [PATCH v7 12/12] Documentation: mm: update the admin guide for
 mTHP collapse

On Sat, Jun 7, 2025 at 12:45 AM Dev Jain <dev.jain@....com> wrote:
>
>
> On 15/05/25 8:52 am, Nico Pache wrote:
>
> Now that we can collapse to mTHPs lets update the admin guide to
> reflect these changes and provide proper guidence on how to utilize it.
>
> Reviewed-by: Bagas Sanjaya <bagasdotme@...il.com>
> Signed-off-by: Nico Pache <npache@...hat.com>
> ---
>  Documentation/admin-guide/mm/transhuge.rst | 14 +++++++++++++-
>  1 file changed, 13 insertions(+), 1 deletion(-)
>
> diff --git a/Documentation/admin-guide/mm/transhuge.rst b/Documentation/admin-guide/mm/transhuge.rst
> index dff8d5985f0f..5c63fe51b3ad 100644
> --- a/Documentation/admin-guide/mm/transhuge.rst
> +++ b/Documentation/admin-guide/mm/transhuge.rst
>
>
> We need to modify/remove the following paragraph:
>
> khugepaged currently only searches for opportunities to collapse to
> PMD-sized THP and no attempt is made to collapse to other THP
> sizes.
On this version this is currently still true, but once I add Baolin's
patch it will not be true. Thanks for the reminder :)

-- Nico