linux-kernel - Re: [PATCH v2 1/3] mm/ksm: Fix incorrect KSM counter handling in mm

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Message-Id: <20250915195439.fa6d52c3f3bbe6380ad65660@linux-foundation.org>
Date: Mon, 15 Sep 2025 19:54:39 -0700
From: Andrew Morton <akpm@...ux-foundation.org>
To: Joe Perches <joe@...ches.com>
Cc: Donet Tom <donettom@...ux.ibm.com>, David Hildenbrand
 <david@...hat.com>, Ritesh Harjani <ritesh.list@...il.com>, Xu Xin
 <xu.xin16@....com.cn>, Chengming Zhou <chengming.zhou@...ux.dev>, Wei Yang
 <richard.weiyang@...il.com>, Aboorva Devarajan <aboorvad@...ux.ibm.com>,
 linux-mm@...ck.org, linux-kernel@...r.kernel.org, Giorgi Tchankvetadze
 <giorgitchankvetadze1997@...il.com>, stable@...r.kernel.org
Subject: Re: [PATCH v2 1/3] mm/ksm: Fix incorrect KSM counter handling in
 mm_struct during fork

On Mon, 15 Sep 2025 19:14:47 -0700 Joe Perches <joe@...ches.com> wrote:

> On Mon, 2025-09-15 at 16:42 -0700, Andrew Morton wrote:
> > On Mon, 15 Sep 2025 20:33:04 +0530 Donet Tom <donettom@...ux.ibm.com> wrote:
> []
> > > Fixes: 7609385337a4 ("ksm: count ksm merging pages for each process")
> > 
> > Linux-v5.19
> > 
> > > Fixes: cb4df4cae4f2 ("ksm: count allocated ksm rmap_items for each process")
> > 
> > Linux-v6.1
> > 
> > > Fixes: e2942062e01d ("ksm: count all zero pages placed by KSM")
> > 
> > Linux-v6.10
> > 
> > > cc: stable@...r.kernel.org # v6.6
> > 
> > So how was Linux-v6.6 arrived at?
> []
> > (Cc Joe.  Should checkpatch say something about this)?
> 
> Probably not. Parsing variants of versions seems, umm, difficult.

I was thinking simpler.  If the Fixes: count exceeds one, ask
"wtf are you asking of the -stable maintainers"?