Re: [PATCH v2 1/3] mm/ksm: Fix incorrect KSM counter handling in mm_struct during fork

From: Sasha Levin
Date: Tue Sep 16 2025 - 08:46:11 EST


On Mon, Sep 15, 2025 at 09:41:17PM -0700, Andrew Morton wrote:
On Tue, 16 Sep 2025 00:33:09 -0400 Sasha Levin <sashal@xxxxxxxxxx> wrote:
On Mon, Sep 15, 2025 at 04:42:48PM -0700, Andrew Morton wrote:
>I think the most important use for Fixes: is to tell the -stable
>maintainers which kernel version(s) we believe should receive the
>patch. So listing multiple Fixes: targets just causes confusion.

Right - there's no way of communicating if all the commits listed in multiple
Fixes tags should exist in the tree, or any one of them, for the new fix to be
applicable.

So what should we do in this situation?

For us, ideally point to the oldest commit fixed by the new commit with a
Fixes: tag, and then a note along with the stable tag if this is a more complex
scenario that we need to consider.

--
Thanks,
Sasha