linux-kernel - Re: [PATCH mm-unstable v14 03/16] introduce collapse_single_pmd to unify khugepaged and madvise

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Message-ID: <97dae79c-1ee4-4a7a-9587-f97c0a1720f3@lucifer.local>
Date: Mon, 26 Jan 2026 15:18:48 +0000
From: Lorenzo Stoakes <lorenzo.stoakes@...cle.com>
To: Andrew Morton <akpm@...ux-foundation.org>
Cc: Lance Yang <lance.yang@...ux.dev>, Nico Pache <npache@...hat.com>,
        david@...nel.org, ziy@...dia.com, baolin.wang@...ux.alibaba.com,
        Liam.Howlett@...cle.com, ryan.roberts@....com, dev.jain@....com,
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        richard.weiyang@...il.com, David Hildenbrand <david@...hat.com>,
        linux-mm@...ck.org
Subject: Re: [PATCH mm-unstable v14 03/16] introduce collapse_single_pmd to
 unify khugepaged and madvise_collapse

On Mon, Jan 26, 2026 at 07:09:18AM -0800, Andrew Morton wrote:
> On Mon, 26 Jan 2026 11:40:21 +0000 Lorenzo Stoakes <lorenzo.stoakes@...cle.com> wrote:
>
> > Andrew - when this goes into mm-new if there isn't a respin between, please
> > drop all tags except any obviously sent re: the fix-patch.
> >
>
> I've been believing this is next -rc1 material.  Was that mistaken?

Yeah this isn't ready yet sorry. I did hope we could get this in this cycle but
there's too much to check (esp. given this change for isntance0 and we need more
time to stabilise it, so please keep this out of mm-(un)stable for now.

It's a really huge change to THP so we need to take our time with it.

So we're aiming for 6.21-rc1 / 7.1-rc1 or whatever deems it to be :)
i.e. next+1-rc1.

Cheers, Lorenzo