From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from kanga.kvack.org (kanga.kvack.org [205.233.56.17]) (using TLSv1 with cipher DHE-RSA-AES256-SHA (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 03BADEDEC04 for ; Wed, 4 Mar 2026 02:28:53 +0000 (UTC) Received: by kanga.kvack.org (Postfix) id 4151C6B0088; Tue, 3 Mar 2026 21:28:53 -0500 (EST) Received: by kanga.kvack.org (Postfix, from userid 40) id 3C2EE6B0089; Tue, 3 Mar 2026 21:28:53 -0500 (EST) X-Delivered-To: int-list-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix, from userid 63042) id 2D4716B008A; Tue, 3 Mar 2026 21:28:53 -0500 (EST) X-Delivered-To: linux-mm@kvack.org Received: from relay.hostedemail.com (smtprelay0017.hostedemail.com [216.40.44.17]) by kanga.kvack.org (Postfix) with ESMTP id 193136B0088 for ; Tue, 3 Mar 2026 21:28:53 -0500 (EST) Received: from smtpin08.hostedemail.com (a10.router.float.18 [10.200.18.1]) by unirelay01.hostedemail.com (Postfix) with ESMTP id 99C2D1C3EA for ; Wed, 4 Mar 2026 02:28:52 +0000 (UTC) X-FDA: 84506797704.08.0939735 Received: from sea.source.kernel.org (sea.source.kernel.org [172.234.252.31]) by imf12.hostedemail.com (Postfix) with ESMTP id 083874000A for ; Wed, 4 Mar 2026 02:28:50 +0000 (UTC) Authentication-Results: imf12.hostedemail.com; dkim=pass header.d=kernel.org header.s=k20201202 header.b=spjB+qe8; spf=pass (imf12.hostedemail.com: domain of kuba@kernel.org designates 172.234.252.31 as permitted sender) smtp.mailfrom=kuba@kernel.org; dmarc=pass (policy=quarantine) header.from=kernel.org ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=hostedemail.com; s=arc-20220608; t=1772591331; h=from:from:sender:reply-to:subject:subject:date:date: message-id:message-id:to:to:cc:cc:mime-version:mime-version: content-type:content-type: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references:dkim-signature; bh=wKj0ybLQ7OTEX7VYO4UYrqVGHCViOoCZ3KGzAf4cs5s=; b=SQv4aEdpRmTPitof5fGHl5dFNzIcCOvhnKnxCVPshjEvNxiNwYgUD5dZ6VcRHoHkzccXVP DECSEXD9/yH6Kx+m9MDRqSYx22JxMXbI5pIHKbh64bFjzILEq1xWsY5N2XftXv5BdHoIFA fePQxUwMutvg4dtdc9S/qTmz7TQ3LLU= ARC-Authentication-Results: i=1; imf12.hostedemail.com; dkim=pass header.d=kernel.org header.s=k20201202 header.b=spjB+qe8; spf=pass (imf12.hostedemail.com: domain of kuba@kernel.org designates 172.234.252.31 as permitted sender) smtp.mailfrom=kuba@kernel.org; dmarc=pass (policy=quarantine) header.from=kernel.org ARC-Seal: i=1; s=arc-20220608; d=hostedemail.com; t=1772591331; a=rsa-sha256; cv=none; b=28bIvWdTe2oTG/SGWM1aFAW3oJx+jHyfnKuiPAUGLdvnZra9UI4ku8Hq5ik7y/BDhxNxSr ipQ+O+Nj8+tRHkNE+4beJlN57zInWW2tjvR/OIYhdQVIgA+BFW5GCg/xByURDTIKUCDb3d RapRtt1DIgVtk2jK2eO/RapT7Vs3GN0= Received: from smtp.kernel.org (transwarp.subspace.kernel.org [100.75.92.58]) by sea.source.kernel.org (Postfix) with ESMTP id 41CFF43A1B; Wed, 4 Mar 2026 02:28:49 +0000 (UTC) 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> MIME-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit X-Stat-Signature: u46y8q784hi9g8koetmzkuncsnhr9tp8 X-Rspamd-Server: rspam09 X-Rspam-User: X-Rspamd-Queue-Id: 083874000A X-HE-Tag: 1772591330-906600 X-HE-Meta: U2FsdGVkX19DFwlz2KKeqlYqoPl+Nw+P8dKfLWypLocUyXJtKEhljVER5Fmyqal3z9MOUpUbhIuszM7wBKkO6jc4qL7KXlGRUYZ/baZDcBS6Pj4Cu3WBH0lsJmfnhx/7mYecxR8esnJ9wHqm7x9KL0gbhRfrSHlDNg2i5dt9HpV4CbToZrH9WBacMQmVwwn72E1OlsBg8dcQtRRHyC9EeZcRJx2HkIj4R62T8hQKx0Wm9alg8ir29pptLHYzn08KuPUSSnfl9JI0Io1xvH+031rsBi2mTAY52PIk7BQbUKb4G9ImjbSzVTF/whx/VS325olt6i+XSyOokFFiKahoTkxNxPb1XyH2RNEouzh+9NMIq8/9D50oFvMzSYNv4jLlqCpoZ1EmRVTGF0aXikQFY13EcBG1MfAsiqQ+oUQyWrFFqWkxZVnx0IgZNzx1Ut6U+RAAfjO0eg4AHabI99R+JHAydroTsPiZOXQ5yYgP+/iZ6+oRW6jyEbQolNoo0fT1b7LE60LzZvI55ueDiwLVALortkBDaCAYXVbMlh0Oi/6LKypCcxfALAvVthKaFD/7RyyZkUZDeWGXfSgjrykbBncsIj/9Z4wVzMdjhgit+v628M0wgCdpEV97SOJK7f8jD2JPiIAddBYpJRf6vXEzqRg7ww5ZfgKjJaurLPtwgHjOBpL+rzJ8BhJLJ9GH3wy8Ore1u9SrKK7H2hZmdmx/yQXwoUG5RW6aPyNB/PIOw2U/pKv8ZMPIEpSZoQx3t9Fr7jDt/wXP6fEj9Iaibc/+Jx+kGMAyuej5TSjkxVBYzuPcYXaTHr1JTY0pefV28Z3wvlNwgQTKI3dGIUmuqIOFpYoQfnxHe6nS0L+K4q8Tz+/EloTF9jhXpZ8RCjNU3rNxfwQ4f418yMNBtaP+JaAZmkgENf/xnmzUmQEpkyw2RyoIaDFS0cderuWQXWpX6p0V5YCx1W2B6R2+u9P/A0D wwR/zFQm dqWVoY4/GokYmu4z5c+7ZmJPeyb3npzGlbimtmnju+t0jW0XAD+9Dm9T5+Yd7g7cc4127olxSu5xpMFVP81ONXoqW8w== Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: List-Subscribe: List-Unsubscribe: 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.