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a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1768499146; bh=NKP/tku6cMDuVGoK2diSQ2fB/LmycsGoKdg789sJ9Os=; h=Date:Subject:To:Cc:References:From:In-Reply-To:From; b=nYJy6A9T9kR4JzP3jLbFrMuhD5QSni458tPEJNyZe9FnKgyjHYih4jU0WRXNUw0LH pTfMZriffkXiZFrvSAmt26mME740xZvARzVdizcMhnRc89em6g58j90U8fliJfpYwe tFUU+KlCvMBpPF+bLn4w7s4XRCwgC+B0vm1IyFUZ42QTOICVZNSrT62YkoTsI7DamE HNrdZNKrSI9J3wtjVhk5Cy8AK8PvjrHFv7Gj/IjQYvxCF8FCRMmYqGKlP59yLokCVg 2HALZ1mRoGMKbke+ujLSlpAU0HvbyypzJsd/AG/kSOirOW1Lhoj2+gs5groxWjFcit Tz2O0IjV/zg0Q== Message-ID: Date: Thu, 15 Jan 2026 18:45:40 +0100 MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [PATCHv3 02/15] mm: Move MAX_FOLIO_ORDER definition to mmzone.h To: Kiryl Shutsemau Cc: Andrew Morton , Muchun Song , 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 , kernel-team@meta.com, linux-mm@kvack.org, linux-kernel@vger.kernel.org, linux-doc@vger.kernel.org References: <20260115144604.822702-1-kas@kernel.org> <20260115144604.822702-3-kas@kernel.org> From: "David Hildenbrand (Red Hat)" Content-Language: en-US Autocrypt: addr=david@kernel.org; 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charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit X-Rspamd-Server: rspam12 X-Rspamd-Queue-Id: A6F8C180004 X-Stat-Signature: 1d8dd4fnz3o16rhmdanytwp4unhr1h7i X-Rspam-User: X-HE-Tag: 1768499147-256820 X-HE-Meta: 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 Mr+oefRu quhFe8mFuTnxAneXZsoisNu6CMIJbD6HGxwDZPCMMn8Fxs/e8RbTKEqWHbV14nHMCko2m+LmoA8GhIF2mlGBMBiH0fBIweRn3UgH8zNR+c4sGpvXE0hbdoZL7ruOfiyUnlRHf1qLwoxWIdSpba9kqfJl+KhctjllZf5TMyNqTvW1FlzFK2lNBWxiyhDEJfBvQH/IB9O49e/Ak4Ybf3Q4RTetR3q7ARQOicrPWZNj2RG+sS4ki4WOldTTopUciS2SKV0Jtg2kZ0Y/NB94mQSc/EjjXdwHvFOOAjbNEX7gxpbuSmrX/4mNoeIJuCg== 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 1/15/26 18:26, Kiryl Shutsemau wrote: > On Thu, Jan 15, 2026 at 05:48:20PM +0100, David Hildenbrand (Red Hat) wrote: >> On 1/15/26 17:35, David Hildenbrand (Red Hat) wrote: >>> On 1/15/26 15:45, Kiryl Shutsemau wrote: >>>> Move MAX_FOLIO_ORDER definition from mm.h to mmzone.h. >>> >>> Why should that belong to mmzone.h ? Semantically doesn't make sense, no? >> >> To clarify, I would have moved it to something more folio-type specific, not >> something buddy/zone specific. >> >> I guess page-flags.h + mm.h are our dumping ground for folio handling. I >> would have moved it to the former. > > I moved it next to MAX_PAGE_ORDER definition which seemed to be logical. MAX_PAGE_ORDER is a buddy concept. MAX_FOLIO_ORDER is not a buddy concept. -- Cheers David