linux-kernel - Re: [PATCH v2 1/2] mm: mmap: map MAP_STACK to VM

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Message-Id: <20250506164310.ff91ff53bb8295921d19cd19@linux-foundation.org>
Date: Tue, 6 May 2025 16:43:10 -0700
From: Andrew Morton <akpm@...ux-foundation.org>
To: Ignacio.MorenoGonzalez@...a.com
Cc: Ignacio Moreno Gonzalez via B4 Relay
 <devnull+Ignacio.MorenoGonzalez.kuka.com@...nel.org>,
 lorenzo.stoakes@...cle.com, Liam.Howlett@...cle.com,
 yang@...amperecomputing.com, linux-mm@...ck.org,
 linux-kernel@...r.kernel.org, stable@...r.kernel.org
Subject: Re: [PATCH v2 1/2] mm: mmap: map MAP_STACK to VM_NOHUGEPAGE only if
 THP is enabled

On Tue, 06 May 2025 15:44:32 +0200 Ignacio Moreno Gonzalez via B4 Relay <devnull+Ignacio.MorenoGonzalez.kuka.com@...nel.org> wrote:

> commit c4608d1bf7c6 ("mm: mmap: map MAP_STACK to VM_NOHUGEPAGE") maps
> the mmap option MAP_STACK to VM_NOHUGEPAGE. This is also done if
> CONFIG_TRANSPARENT_HUGETABLES is not defined. But in that case, the
> VM_NOHUGEPAGE does not make sense.
> 
> Fixes: c4608d1bf7c6 ("mm: mmap: map MAP_STACK to VM_NOHUGEPAGE")
> Cc: stable@...r.kernel.org

Mixing -stable and non-stable patches in a single series is
troublesome, because the timing and targeting of these patches are
quite different.  I usually have to split them apart, munge around the
changelogging and generally do things which I'd prefer you had done in
the original!

So please consider presenting these as two standalone patches.