From: Rik van Riel <riel@surriel.com>
To: "David Hildenbrand (Red Hat)" <david@kernel.org>,
linux-kernel@vger.kernel.org
Cc: linux-arch@vger.kernel.org, linux-mm@kvack.org,
Will Deacon <will@kernel.org>,
"Aneesh Kumar K.V" <aneesh.kumar@kernel.org>,
Andrew Morton <akpm@linux-foundation.org>,
Nick Piggin <npiggin@gmail.com>,
Peter Zijlstra <peterz@infradead.org>,
Arnd Bergmann <arnd@arndb.de>,
Muchun Song <muchun.song@linux.dev>,
Oscar Salvador <osalvador@suse.de>,
"Liam R. Howlett" <Liam.Howlett@oracle.com>,
Lorenzo Stoakes <lorenzo.stoakes@oracle.com>,
Vlastimil Babka <vbabka@suse.cz>, Jann Horn <jannh@google.com>,
Pedro Falcato <pfalcato@suse.de>,
Harry Yoo <harry.yoo@oracle.com>,
Laurence Oberman <loberman@redhat.com>,
Prakash Sangappa <prakash.sangappa@oracle.com>,
Nadav Amit <nadav.amit@gmail.com>,
stable@vger.kernel.org, Liu Shixin <liushixin2@huawei.com>
Subject: Re: [PATCH v1 1/4] mm/hugetlb: fix hugetlb_pmd_shared()
Date: Fri, 05 Dec 2025 21:18:04 -0500 [thread overview]
Message-ID: <414f56e94f641aff9bb3db2c4feac70997580d45.camel@surriel.com> (raw)
In-Reply-To: <20251205213558.2980480-2-david@kernel.org>
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@vger.kernel.org>
> Cc: Liu Shixin <liushixin2@huawei.com>
> Signed-off-by: David Hildenbrand (Red Hat) <david@kernel.org>
>
Reviewed-by: Rik van Riel <riel@surriel.com>
--
All Rights Reversed.
next prev parent reply other threads:[~2025-12-06 2:19 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
2025-12-05 21:35 [PATCH v1 0/4] mm/hugetlb: fixes for PMD table sharing (incl. using mmu_gather) David Hildenbrand (Red Hat)
2025-12-05 21:35 ` [PATCH v1 1/4] mm/hugetlb: fix hugetlb_pmd_shared() David Hildenbrand (Red Hat)
2025-12-06 2:18 ` Rik van Riel [this message]
2025-12-06 5:55 ` Lance Yang
2025-12-06 6:24 ` Lance Yang
2025-12-05 21:35 ` [PATCH v1 2/4] mm/hugetlb: fix two comments related to huge_pmd_unshare() David Hildenbrand (Red Hat)
2025-12-06 2:26 ` Rik van Riel
2025-12-05 21:35 ` [PATCH v1 3/4] mm/rmap: " David Hildenbrand (Red Hat)
2025-12-06 2:50 ` Rik van Riel
2025-12-05 21:35 ` [PATCH v1 4/4] mm/hugetlb: fix excessive IPI broadcasts when unsharing PMD tables using mmu_gather David Hildenbrand (Red Hat)
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