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Thu, 26 Mar 2026 09:14:04 -0700 (PDT) Date: Thu, 26 Mar 2026 16:14:03 +0000 In-Reply-To: <20260320-page_alloc-unmapped-v2-5-28bf1bd54f41@google.com> Mime-Version: 1.0 References: <20260320-page_alloc-unmapped-v2-0-28bf1bd54f41@google.com> <20260320-page_alloc-unmapped-v2-5-28bf1bd54f41@google.com> X-Mailer: aerc 0.21.0 Message-ID: Subject: Re: [PATCH v2 05/22] mm: Add more flags for __apply_to_page_range() From: Brendan Jackman To: Brendan Jackman , Borislav Petkov , Dave Hansen , Peter Zijlstra , Andrew Morton , David Hildenbrand , Vlastimil Babka , Wei Xu , Johannes Weiner , Zi Yan , Lorenzo Stoakes Cc: , , , , Sumit Garg , , , Will Deacon , , "Kalyazin, Nikita" , , "Itazuri, Takahiro" , Andy Lutomirski , David Kaplan , Thomas Gleixner , Yosry Ahmed Content-Type: text/plain; charset="UTF-8" X-Rspamd-Queue-Id: 36347140010 X-Stat-Signature: k5kg716zcwrxg38aikdnjgfmeiwa1iwk X-Rspam-User: X-Rspamd-Server: rspam07 X-HE-Tag: 1774541645-966185 X-HE-Meta: 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 cTEVFRfi 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 Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: List-Subscribe: List-Unsubscribe: Looking at the next AI review from [0]... [0] https://sashiko.dev/#/patchset/20260320-page_alloc-unmapped-v2-0-28bf1bd54f41%40google.com I'll keep it short this time: the patch is complete rubbish. In case anyone is reading this please skip it for now. The details of how this is implemented are orthogonal to the rest of the patchset anyway.