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Howlett" , Vlastimil Babka , Mike Rapoport , Suren Baghdasaryan , Michal Hocko , linux-mm@kvack.org, linux-kernel@vger.kernel.org Subject: Re: [PATCH] mm: Add AnonZero accounting for zero-filled anonymous pages Message-ID: References: <20260214084514.2842745-1-haowenchao22@gmail.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20260214084514.2842745-1-haowenchao22@gmail.com> X-Rspamd-Server: rspam11 X-Stat-Signature: zd7znc394wqgd95db37ggkbz4phcuqrk X-Rspam-User: X-Rspamd-Queue-Id: 1CF5D18000F X-HE-Tag: 1771261440-67904 X-HE-Meta: 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 EaGsTjhx Ob7TEyloi4sHnnwbLMcwOTnjCvKkHGRejmMzaYZnAHX9oP+OIn0t3EDJvR+4KulSJS93aDeRHowIPAUSSA3ALXPBFpBOFI6aTxYAs4MdsHELcEedxo5dyGnBDVKFRAvXSjuDn0OK7kzuZOyzi675ZjRz3QhVSsmXdaG2x/Wi3ZnoFv+QluWSX/FMGs1SqQRXqD76xAkihSyTu7iQCPzb4B0VI6Kca7THY9BNPkE1CWGBXRkT03hkqLdKZNQ== 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 Sat, Feb 14, 2026 at 04:45:14PM +0800, Wenchao Hao wrote: > + if (count_zero_page && pages_identical(page, ZERO_PAGE(0))) Pretty sure you want memchr_inv() here?