linux-kernel - Re: Linux 6.18-rc6

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Message-ID: <aR3lZHAJJKZg8LRG@arm.com>
Date: Wed, 19 Nov 2025 15:42:28 +0000
From: Catalin Marinas <catalin.marinas@....com>
To: Linus Torvalds <torvalds@...ux-foundation.org>
Cc: "David Hildenbrand (Red Hat)" <david@...nel.org>,
	David Wang <00107082@....com>, lance.yang@...ux.dev, b-padhi@...com,
	akpm@...ux-foundation.org, linux-kernel@...r.kernel.org,
	Jan Polensky <japo@...ux.ibm.com>
Subject: Re: Linux 6.18-rc6

On Tue, Nov 18, 2025 at 08:49:42AM -0800, Linus Torvalds wrote:
> On Mon, 17 Nov 2025 at 23:28, David Hildenbrand (Red Hat)
> <david@...nel.org> wrote:
> >
> > Do you want to quickly send that patch with linux-mm on CC or do you
> > just want to commit it? If you're busy I can quickly send it around.
> 
> I applied it (with your fix for the silly inverted assignment to
> 'init') directly, since I wanted to get this fixed quickly as we're
> fairly late in the release cycle.
> 
> But if there is some thread on linux-mm that should be notified that
> you know of - this is the only one I'm personally aware of - please do
> give people there a heads-up.

Thanks Linus, David for the quick fix and upstreaming. I tested it as
well on arm64 and works fine both with MTE enabled and disabled. I had a
somewhat similar proposal here:

https://lore.kernel.org/r/aRIEkLw7BofLjOWs@arm.com

though dealing with all pages in tag_clear_highpages() is better, it
gives us some room for (small) optimisation later on (e.g. only flag the
head of a compound page like we do for hugetlb).

-- 
Catalin