From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 7CC8C231A21; Wed, 4 Mar 2026 02:28:49 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=10.30.226.201 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1772591329; cv=none; b=Nvt/dnmGxtSrA0EG/Rlhok2LXwYKmucBF7RMPWLMJvrMz06g5qI8d9hfF+66GnoFNvJep+48+FM9sd3GbmEo3exFMp2Ye/aHw8e3hQLGoronvWyyr/0QPLnPPbPNJu61qoS1iPL3+2S6a6GirS3RHb8ZRx6+SNCvFa3Py25ZAcQ= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1772591329; c=relaxed/simple; bh=w0enNDJ6vj/GjKs1g6Qapybf69Y+ysKOpkctiG5RrpQ=; h=Date:From:To:Cc:Subject:Message-ID:In-Reply-To:References: MIME-Version:Content-Type; b=MQRAn0h3laXENu/bzGpGkiLJS7Dod+JVQu/ZL2zCdR9iPu6YW0WHP+KDWox8fPx5rzDLrFt/eqA0BNtuvkosiP9S8Y2U7LqQt4ClJ7y055E7lTi0f3v6F4NExcrcuw/0/bbWsfQnEz2yZ5lPsHiBuof/HmLqorwz9fLC0+IekyI= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=spjB+qe8; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="spjB+qe8" Received: by smtp.kernel.org (Postfix) with ESMTPSA id DB983C116C6; Wed, 4 Mar 2026 02:28:45 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1772591329; bh=w0enNDJ6vj/GjKs1g6Qapybf69Y+ysKOpkctiG5RrpQ=; h=Date:From:To:Cc:Subject:In-Reply-To:References:From; b=spjB+qe83UoElqhhSNfGwtYNBZK6rgflA8nN48IzNFPIWPeUr3QRcXVdCtF1NJKnf z5EksqVKhftC9MLC9j/7nGeIaaTR87yGm5Rwd8MxIRtsUMKdsilMMJ3Cd9iakxj8Bd EH9ATACpJVqsf4PLZG7kLZaviIgPJnXRNiYRro7z9N/ZFYixQx9IlT7mTSxw717b7C FtZrlDgcd81FIPR+0JhvBn0boDgv6oQAtRyqPocimgjFVPbqTR/7W2RrWO0jyc8Sw9 QZEusDhvc5/gFZA6KC6+NigNLVm6yl1rbhBl2iBivGRlsjsn6q5oZHNnRRI6Qq4pAT NJF9zxNmgNh2w== Date: Tue, 3 Mar 2026 18:28:45 -0800 From: Jakub Kicinski To: Yury Norov Cc: Andrew Morton , "David S. Miller" , "Michael S. Tsirkin" , "Theodore Ts'o" , Albert Ou , Alexander Duyck , Alexander Gordeev , Alexander Viro , Alexandra Winter , Andreas Dilger , Andrew Lunn , Anna Schumaker , Anton Yakovlev , Arnaldo Carvalho de Melo , Aswin Karuvally , Borislav Petkov , Carlos Maiolino , Catalin Marinas , Chao Yu , Christian Borntraeger , Christian Brauner , Claudio Imbrenda , Dave Hansen , David Airlie , Dominique Martinet , Dongsheng Yang , Eric Dumazet , Eric Van Hensbergen , Heiko Carstens , Herbert Xu , Ingo Molnar , Jaegeuk Kim , Jani Nikula , Janosch Frank , Jaroslav Kysela , Jens Axboe , Joonas Lahtinen , Latchesar Ionkov , Linus Walleij , Madhavan Srinivasan , Mark Brown , Michael Ellerman , Miklos Szeredi , Namhyung Kim , Palmer Dabbelt , Paolo Abeni , Paolo Bonzini , Paul Walmsley , Peter Zijlstra , Rodrigo Vivi , Sean Christopherson , Simona Vetter , Takashi Iwai , Thomas Gleixner , Trond Myklebust , Tvrtko Ursulin , Vasily Gorbik , Will Deacon , Yury Norov , Zheng Gu , linux-kernel@vger.kernel.org, x86@kernel.org, linux-arm-kernel@lists.infradead.org, linuxppc-dev@lists.ozlabs.org, linux-riscv@lists.infradead.org, kvm@vger.kernel.org, linux-s390@vger.kernel.org, linux-block@vger.kernel.org, intel-gfx@lists.freedesktop.org, dri-devel@lists.freedesktop.org, dm-devel@lists.linux.dev, netdev@vger.kernel.org, linux-spi@vger.kernel.org, linux-ext4@vger.kernel.org, linux-f2fs-devel@lists.sourceforge.net, linux-fsdevel@vger.kernel.org, linux-xfs@vger.kernel.org, linux-nfs@vger.kernel.org, linux-crypto@vger.kernel.org, linux-mm@kvack.org, linux-perf-users@vger.kernel.org, v9fs@lists.linux.dev, virtualization@lists.linux.dev, linux-sound@vger.kernel.org Subject: Re: [PATCH 0/8] mm: globalize rest_of_page() macro Message-ID: <20260303182845.250bb2de@kernel.org> In-Reply-To: <20260304012717.201797-1-ynorov@nvidia.com> References: <20260304012717.201797-1-ynorov@nvidia.com> Precedence: bulk X-Mailing-List: virtualization@lists.linux.dev List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit On Tue, 3 Mar 2026 20:27:08 -0500 Yury Norov wrote: > The net/9p networking driver has a handy macro to calculate the > amount of bytes from a given pointer to the end of page. Move it > to core/mm, and apply tree-wide. No functional changes intended. > > This series was originally introduced as a single patch #07/12 in: > > https://lore.kernel.org/all/20260219181407.290201-1-ynorov@nvidia.com/ > > Split it for better granularity and submit separately. I don't get what the motivation is here. Another helper developers and readers of the code will need to know about just to replace obvious and easy to comprehend math.