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b=Bk9S8whDQdEnqW8ivoY5HX7nZMwZc0L9+aRbd+FeNHoZjTq+j8OGcarcdrT1AG40R nrrLY+QC/TTcjOUasLpldywlhcZfBWmtht15G8LlwCB1WxLv9OxwvdpkbqX+76nI1I sjvnlEzt04Qkv3r0ZYl8hjOEgyqvC6kkELiiNLPbY6SLuXv+CRpoEZR+raUtV3KMhR Znw5eCXl0BfAnswB60wy+5Uz6imrsnGy/LwDqJ8f8LzRBAESWl09x1ti+wwAfQymsm jiLUPufNOanffV04CImNSB8s8lrBQUPEk8IeHdtQzKWkUwe3ttFiz+MU8LxWna40I/ wUcm3gK29qIWQ== Message-ID: <488499f2-3e3f-4377-bc28-40ff7f5166ec@kernel.org> Date: Mon, 16 Mar 2026 17:31:42 +0100 MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [PATCHv7 06/18] LoongArch/mm: Align vmemmap to maximal folio size To: "Kiryl Shutsemau (Meta)" , Andrew Morton , Muchun Song , Matthew Wilcox , Usama Arif , Frank van der Linden Cc: Oscar Salvador , Mike Rapoport , Vlastimil Babka , Lorenzo Stoakes , Zi Yan , Baoquan He , Michal Hocko , Johannes Weiner , Jonathan Corbet , Huacai Chen , WANG Xuerui , Palmer Dabbelt , Paul Walmsley , Albert Ou , Alexandre Ghiti , kernel-team@meta.com, linux-mm@kvack.org, linux-kernel@vger.kernel.org, linux-doc@vger.kernel.org, loongarch@lists.linux.dev, linux-riscv@lists.infradead.org References: <20260227194302.274384-1-kas@kernel.org> <20260227194302.274384-7-kas@kernel.org> From: "David Hildenbrand (Arm)" Content-Language: en-US Autocrypt: addr=david@kernel.org; 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charset=UTF-8 Content-Transfer-Encoding: 7bit X-Rspamd-Server: rspam02 X-Rspamd-Queue-Id: EE6EDC000F X-Stat-Signature: 8zquxhbonrf6ntj9tcf7rgtb75nx8zur X-Rspam-User: X-HE-Tag: 1773678711-308686 X-HE-Meta: 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 G/QTcbea 6c9/GLYPeL9L51faOcXrAqyufOyfK7uH6lzf9YxohWuZ/zyL/XRt/Cfq6Mx41RInEqFxJpFmxLjYwfL78cyC3peYhkocdbU7y40ER+M39nhE7qp+/KfH53cNlLOHe75q47axaXu8d3KlyRqHSFkxrXKfwvSSA5AwNtSvrDBiVzH0E+XQgNJnkyNLykHPxex2G4QbrAwh1Fdeqb76hKihy0AXH5vXHNp/tXiTuHn5uidsTqeiVg0GYqlXIq8Cawn2eEKvPqeuGAp0UOJbHlonMxinjZ5l7tGE3+lfH Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: List-Subscribe: List-Unsubscribe: On 2/27/26 20:42, Kiryl Shutsemau (Meta) wrote: > From: Kiryl Shutsemau > > The upcoming change to the HugeTLB vmemmap optimization (HVO) requires > struct pages of the head page to be naturally aligned with regard to the > folio size. > > Align vmemmap to MAX_FOLIO_VMEMMAP_ALIGN. > > Signed-off-by: Kiryl Shutsemau > --- Acked-by: David Hildenbrand (Arm) -- Cheers, David