linux-kernel - Re: [PATCHv2 1/2] mm/memory: Do not populate page table entries beyond i

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Message-Id: <20251025215416.dbe01a36382fdd1a6d6a8e5b@linux-foundation.org>
Date: Sat, 25 Oct 2025 21:54:16 -0700
From: Andrew Morton <akpm@...ux-foundation.org>
To: Kiryl Shutsemau <kirill@...temov.name>
Cc: David Hildenbrand <david@...hat.com>, Hugh Dickins <hughd@...gle.com>,
 Matthew Wilcox <willy@...radead.org>, Alexander Viro
 <viro@...iv.linux.org.uk>, Christian Brauner <brauner@...nel.org>, Lorenzo
 Stoakes <lorenzo.stoakes@...cle.com>, "Liam R. Howlett"
 <Liam.Howlett@...cle.com>, Vlastimil Babka <vbabka@...e.cz>, Mike Rapoport
 <rppt@...nel.org>, Suren Baghdasaryan <surenb@...gle.com>, Michal Hocko
 <mhocko@...e.com>, Rik van Riel <riel@...riel.com>, Harry Yoo
 <harry.yoo@...cle.com>, Johannes Weiner <hannes@...xchg.org>, Shakeel Butt
 <shakeel.butt@...ux.dev>, Baolin Wang <baolin.wang@...ux.alibaba.com>,
 "Darrick J. Wong" <djwong@...nel.org>, Dave Chinner <david@...morbit.com>,
 linux-mm@...ck.org, linux-fsdevel@...r.kernel.org,
 linux-kernel@...r.kernel.org
Subject: Re: [PATCHv2 1/2] mm/memory: Do not populate page table entries
 beyond i_size

On Fri, 24 Oct 2025 10:26:05 +0100 Kiryl Shutsemau <kirill@...temov.name> wrote:

> > Because the Sep 28 2025 Fixes: totally fooled me and because this
> > doesn't apply to 6.17, let alone to 6.ancient.
> > 
> > > It sure is a fix for that. We can indicate to which stable 
> > > versions we want to have ti backported.
> > > 
> > > And yes, it might be all stable kernels.
> > 
> > No probs, thanks for clarifying.  I'll restore the
> > 
> > 	Fixes: 800d8c63b2e9 ("shmem: add huge pages support")
> > 	Cc; <stable@...r.kernel.org>
> > 
> > and shall let others sort out the backporting issues.
> 
> One possible way to relax backporting requirements is only to backport
> to kernels where we can have writable file mapping to filesystem with a
> backing storage (non-shmem).
> 
> Maybe
> 
> Fixes: 01c70267053d ("fs: add a filesystem flag for THPs")

OK, thanks, I changed it to

Link: https://lkml.kernel.org/r/20251023093251.54146-2-kirill@shutemov.name
Fixes: 01c70267053d ("fs: add a filesystem flag for THPs")
Signed-off-by: Kiryl Shutsemau <kas@...nel.org>
...
Cc: <stable@...r.kernel.org>