linux-kernel - Re: [PATCH v1 1/4] mm/hugetlb: fix hugetlb_pmd

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Message-ID: <414f56e94f641aff9bb3db2c4feac70997580d45.camel@surriel.com>
Date: Fri, 05 Dec 2025 21:18:04 -0500
From: Rik van Riel <riel@...riel.com>
To: "David Hildenbrand (Red Hat)" <david@...nel.org>, 
	linux-kernel@...r.kernel.org
Cc: linux-arch@...r.kernel.org, linux-mm@...ck.org, Will Deacon
 <will@...nel.org>,  "Aneesh Kumar K.V" <aneesh.kumar@...nel.org>, Andrew
 Morton <akpm@...ux-foundation.org>, Nick Piggin <npiggin@...il.com>,  Peter
 Zijlstra <peterz@...radead.org>, Arnd Bergmann <arnd@...db.de>, Muchun Song
 <muchun.song@...ux.dev>,  Oscar Salvador <osalvador@...e.de>, "Liam R.
 Howlett" <Liam.Howlett@...cle.com>, Lorenzo Stoakes	
 <lorenzo.stoakes@...cle.com>, Vlastimil Babka <vbabka@...e.cz>, Jann Horn	
 <jannh@...gle.com>, Pedro Falcato <pfalcato@...e.de>, Harry Yoo	
 <harry.yoo@...cle.com>, Laurence Oberman <loberman@...hat.com>, Prakash
 Sangappa <prakash.sangappa@...cle.com>, Nadav Amit <nadav.amit@...il.com>,
 stable@...r.kernel.org,  Liu Shixin <liushixin2@...wei.com>
Subject: Re: [PATCH v1 1/4] mm/hugetlb: fix hugetlb_pmd_shared()

On Fri, 2025-12-05 at 22:35 +0100, David Hildenbrand (Red Hat) wrote:
> 
> Fix it by properly using ptdesc_pmd_is_shared() in
> hugetlb_pmd_shared().
> 
> Fixes: 59d9094df3d7 ("mm: hugetlb: independent PMD page table shared
> count")
> Cc: <stable@...r.kernel.org>
> Cc: Liu Shixin <liushixin2@...wei.com>
> Signed-off-by: David Hildenbrand (Red Hat) <david@...nel.org>
> 
Reviewed-by: Rik van Riel <riel@...riel.com>


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