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Date: Wed, 29 Jul 2026 17:55:25 -0700
From: Andrew Morton <akpm@linux-foundation.org>
To: "Lorenzo Stoakes (ARM)" <ljs@kernel.org>
Cc: "David Hildenbrand (Arm)" <david@kernel.org>, Zi Yan <ziy@nvidia.com>,
 Baolin Wang <baolin.wang@linux.alibaba.com>, "Liam R. Howlett"
 <liam@infradead.org>, Nico Pache <npache@redhat.com>, Ryan Roberts
 <ryan.roberts@arm.com>, Dev Jain <dev.jain@arm.com>, Barry Song
 <baohua@kernel.org>, Lance Yang <lance.yang@linux.dev>, Usama Arif
 <usama.arif@linux.dev>, Pankaj Raghav <p.raghav@samsung.com>, Hannes
 Reinecke <hare@suse.de>, Hugh Dickins <hughd@google.com>, Yang Shi
 <shy828301@gmail.com>, Kiryl Shutsemau <kas@kernel.org>,
 linux-mm@kvack.org, linux-kernel@vger.kernel.org, Hengbin Zhang
 <uqbarz@gmail.com>, stable@vger.kernel.org
Subject: Re: [PATCH mm-hotfixes 0/2] mm/huge_memory: fix huge_zero_pfn race
Message-Id: <20260729175525.5e80051b8b21f723766142d6@linux-foundation.org>
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References: <20260728-fix-refcounted-huge-zero-v1-0-3f261f5447b4@kernel.org>
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On Wed, 29 Jul 2026 09:15:08 +0100 "Lorenzo Stoakes (ARM)" <ljs@kernel.org> wrote:

> (It'd be good to get some review on the actual changes also :)

Indeed it would.

I'll add these to mm-new as there's presumably no rush to fix a 2018
bug.  And add my little "acks?" note to remind that review is pending.



To simplify the dependency things I added

  Fixes: 3b77e8c8cde5 ("mm/thp: make is_huge_zero_pmd() safe and quicker")

to both, as Greg applauded yesterday.



Should I be worried about
https://sashiko.dev/#/patchset/20260728-fix-refcounted-huge-zero-v1-0-3f261f5447b4@kernel.org
?