linux-kernel - Re: [PATCH mm-unstable] mm: Fix uffd-wp bit loss when batching file folio unmapping

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Message-Id: <20260117094638.c570cfffb999f0952ca7ab36@linux-foundation.org>
Date: Sat, 17 Jan 2026 09:46:38 -0800
From: Andrew Morton <akpm@...ux-foundation.org>
To: "David Hildenbrand (Red Hat)" <david@...nel.org>
Cc: Dev Jain <dev.jain@....com>, Lorenzo Stoakes
 <lorenzo.stoakes@...cle.com>, axelrasmussen@...gle.com, yuanchu@...gle.com,
 weixugc@...gle.com, Liam.Howlett@...cle.com, vbabka@...e.cz,
 rppt@...nel.org, surenb@...gle.com, mhocko@...e.com, riel@...riel.com,
 harry.yoo@...cle.com, jannh@...gle.com, ryan.roberts@....com,
 baohua@...nel.org, baolin.wang@...ux.alibaba.com, linux-mm@...ck.org,
 linux-kernel@...r.kernel.org
Subject: Re: [PATCH mm-unstable] mm: Fix uffd-wp bit loss when batching file
 folio unmapping

On Fri, 16 Jan 2026 11:51:17 +0100 "David Hildenbrand (Red Hat)" <david@...nel.org> wrote:

> > I saw that the last comment on that series was more than a week back, so best
> > thought to just do a folded fix on top of it - and I had formed the impression
> > (from the conversations on list) that akpm prefers fixes over respins : )
> 
> That series is still on my TODO list and I hope Andrew will keep it out 
> of stable until I get to it.

No probs, I added a note against this series.

> Hope is all I got ;)

There's also "tell Andrew stuff".  It's very helpful!

In the ordinary course of things I expect I'd have judged this series
to be adequately tested and sufficiently well reviewed by sufficiently
familiar names so I'd have moved it into mm-stable.

But after learning of your concerns I've added a note and I moved the
series to tail of mm-unstable where it will be easier to drop or defer
should the need arise.

If drop-or-defer is to be the decision then please let's make that as
early as possible - we don't want non-merge-window material in there
perturbing testing or causing integration issues.