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From: Muchun Song In-Reply-To: <20260202155634.650837-10-kas@kernel.org> Date: Tue, 3 Feb 2026 11:35:24 +0800 Cc: Andrew Morton , David Hildenbrand , Matthew Wilcox , Usama Arif , Frank van der Linden , 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 Content-Transfer-Encoding: 7bit Message-Id: References: <20260202155634.650837-1-kas@kernel.org> <20260202155634.650837-10-kas@kernel.org> To: Kiryl Shutsemau X-Migadu-Flow: FLOW_OUT X-Rspamd-Server: rspam03 X-Rspamd-Queue-Id: 1115940006 X-Stat-Signature: 9smy9syxbjpspndz7q1io9sza9a1upeo X-Rspam-User: X-HE-Tag: 1770089768-857732 X-HE-Meta: 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 G93cBTIP Cf9le+DmSwlMkw1lXu1yULvoaNL7Pli5okZthxWCnXIPen6a90JHO1FyMHGHOdeRyhi8n34ZuSkT3FCzTe37v2VxGTM8vdqJP/gJbpaRvhjds8rW04iyFHTFMogujs2JvvynLWBtmOt8msbclyfYPWApemXiYk6U/tz7kOnkzNPKlHqe+Zkb2inhr0S3hLT64Ahij7fjxlos8cq5vLoFEeFqy2oCFCGCUnv+2A/zciRsU96DRy3kjqhJGI2UCkaFryLmwuK4H+sLoaHA/A4QXQan44FdP16XJDtBXMu85As3/+B36Quc3sRWyrzisOHrewLsqBeNYxBpMh5k= X-Bogosity: Ham, tests=bogofilter, spamicity=0.000000, version=1.2.4 Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: List-Subscribe: List-Unsubscribe: > On Feb 2, 2026, at 23:56, Kiryl Shutsemau wrote: > > If page->compound_info encodes a mask, it is expected that vmemmap to be > naturally aligned to the maximum folio size. > > Add a VM_BUG_ON() to check the alignment. > > Signed-off-by: Kiryl Shutsemau > Acked-by: Zi Yan Reviewed-by: Muchun Song