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]) by smtp.lore.kernel.org (Postfix) with ESMTP id E4B49C7115B for ; Thu, 19 Jun 2025 08:37:29 +0000 (UTC) Received: by kanga.kvack.org (Postfix) id 7829B6B007B; Thu, 19 Jun 2025 04:37:29 -0400 (EDT) Received: by kanga.kvack.org (Postfix, from userid 40) id 733466B0088; Thu, 19 Jun 2025 04:37:29 -0400 (EDT) X-Delivered-To: int-list-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix, from userid 63042) id 6495F6B0089; Thu, 19 Jun 2025 04:37:29 -0400 (EDT) X-Delivered-To: linux-mm@kvack.org Received: from relay.hostedemail.com (smtprelay0010.hostedemail.com [216.40.44.10]) by kanga.kvack.org (Postfix) with ESMTP id 550776B007B for ; Thu, 19 Jun 2025 04:37:29 -0400 (EDT) Received: from smtpin29.hostedemail.com (a10.router.float.18 [10.200.18.1]) by unirelay07.hostedemail.com (Postfix) with ESMTP id EE61A160677 for ; Thu, 19 Jun 2025 08:37:28 +0000 (UTC) X-FDA: 83571496176.29.64823C9 Received: from sea.source.kernel.org (sea.source.kernel.org [172.234.252.31]) by imf02.hostedemail.com (Postfix) with ESMTP id 31EC280006 for ; Thu, 19 Jun 2025 08:37:26 +0000 (UTC) Authentication-Results: imf02.hostedemail.com; dkim=pass header.d=kernel.org header.s=k20201202 header.b=R6yj1M0O; dmarc=pass (policy=quarantine) header.from=kernel.org; spf=pass (imf02.hostedemail.com: domain of brauner@kernel.org designates 172.234.252.31 as permitted sender) smtp.mailfrom=brauner@kernel.org ARC-Seal: i=1; s=arc-20220608; d=hostedemail.com; t=1750322247; a=rsa-sha256; cv=none; b=WGTAK/6sZQt70JX++Y1mwvqtDwW7EoKcC0Vd+a+ILAmJQtlrTXSQ64ve0sC333DLNojfXd 10ao49tn3ifZvlQRN/NGj0YlVJtboVeeq7P54fBRUl82cG8h80O7A43xcSZJL83iKU4H2P 1iQNOTiEJsarRIxQZPf8S4Nj3YMsRmw= ARC-Authentication-Results: i=1; imf02.hostedemail.com; dkim=pass header.d=kernel.org header.s=k20201202 header.b=R6yj1M0O; dmarc=pass (policy=quarantine) header.from=kernel.org; spf=pass (imf02.hostedemail.com: domain of brauner@kernel.org designates 172.234.252.31 as permitted sender) smtp.mailfrom=brauner@kernel.org ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=hostedemail.com; s=arc-20220608; t=1750322247; 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: in-reply-to:in-reply-to:references:references:dkim-signature; bh=04tdDVATYNWSCwFejXuiaBEVGEOf2V4o6Epu+NVZlRs=; b=UabDSIE+2DJ3M1CYaHM7yEHmzXZixlJfHS3DI2b+aRxUbiP0Z7uSgkjFsU68M5BUDuKxU8 V8QdaxODY9oy464UUYQuPsHqXtyP1fPAXKq1ZYZAP5fCPdGJkAePPsE86uzTI4vupFm+qP D4WkGdgjXl6wJn4pHgwCp2IuYTWmmB8= Received: from smtp.kernel.org (transwarp.subspace.kernel.org [100.75.92.58]) by sea.source.kernel.org (Postfix) with ESMTP id A825E4AB3A; Thu, 19 Jun 2025 08:37:25 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id BF58CC4CEEA; Thu, 19 Jun 2025 08:37:12 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1750322245; bh=KLuXxcXXthjBdqrsgWNOCjHVsFbWRkn/d0K+J95dPpg=; h=Date:From:To:Cc:Subject:References:In-Reply-To:From; b=R6yj1M0OkpFxO0SerjjhxBJlpExLKNruhn8PvIp0m8K+chuK//1kiny+q+oSzoZTM ZUkvpHsDUKNRDxnhaWFDynJPEOcQ50ZiAW5ZiyfrNo7zYcBux0MrO0PS3fzfxojDFU +cU7n8lklK9cWGX3u1ynoZQ1ggHpXiPgy0DNCKKkFoVKSGc/GwGWPXXZl2pyh6HRmZ 86l3IHBmly0NUlRIh0qBJKKPsgPaBSkxHiILq3ccMeZBFVNZZ7kVTSiUs7N7Ah6ZV7 VkISVRM5UjQNRigCAYrrpzRKvaF3Wm4jJnpmMLgHQZ9BH1FO4w3ufulwkEEwE/l+8Q W+fFs8U6UHmSQ== Date: Thu, 19 Jun 2025 10:37:08 +0200 From: Christian Brauner To: Lorenzo Stoakes Cc: Andrew Morton , Russell King , Catalin Marinas , Will Deacon , Madhavan Srinivasan , Michael Ellerman , Nicholas Piggin , Christophe Leroy , "David S . Miller" , Andreas Larsson , Jarkko Sakkinen , Dave Hansen , Thomas Gleixner , Ingo Molnar , Borislav Petkov , "H . Peter Anvin" , Andy Lutomirski , Peter Zijlstra , Alexander Viro , Jan Kara , Kees Cook , Peter Xu , David Hildenbrand , Zi Yan , Baolin Wang , "Liam R . Howlett" , Nico Pache , Ryan Roberts , Dev Jain , Barry Song , Xu Xin , Chengming Zhou , Hugh Dickins , Vlastimil Babka , Mike Rapoport , Suren Baghdasaryan , Michal Hocko , Rik van Riel , Harry Yoo , Dan Williams , Matthew Wilcox , Steven Rostedt , Masami Hiramatsu , Mathieu Desnoyers , Jason Gunthorpe , John Hubbard , Muchun Song , Oscar Salvador , Jann Horn , Pedro Falcato , Johannes Weiner , Qi Zheng , Shakeel Butt , linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, linuxppc-dev@lists.ozlabs.org, kvm@vger.kernel.org, sparclinux@vger.kernel.org, linux-sgx@vger.kernel.org, linux-fsdevel@vger.kernel.org, linux-mm@kvack.org, nvdimm@lists.linux.dev, linux-trace-kernel@vger.kernel.org Subject: Re: [PATCH 2/3] mm: update core kernel code to use vm_flags_t consistently Message-ID: <20250619-vormund-ungeachtet-8a9093d475e8@brauner> References: MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Disposition: inline In-Reply-To: X-Rspamd-Server: rspam08 X-Rspamd-Queue-Id: 31EC280006 X-Stat-Signature: 31injits8g75x13c8ifncmmabm1zy5dd X-Rspam-User: X-HE-Tag: 1750322246-413300 X-HE-Meta: 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 Ds6jicCQ JWFbWh41MSWsIcIkjMyHYJrDG+tpj4uQj9jYrPU2D+W3iP4TAxjOmbzVTn1vWGdXGA4p2c/+ThM+G30FsoJ+EOhakHoy9Z+d3k3tcHhXExSo89RMq8zqc8fu58ugHfgAhNtbSVlHDZG1t9nJNctFx4qOWyKBeiJB4lSBNTVB3vfz0DmkPu4qZRIN2+cinZINepxSX1bGudpXbYuR4QKYhVICQJ+G6ikNETxdiskv+KDIBenkVIH5n/Gj210PSrzEPrTnuBJbdjjgCeqYSySC6cIBhntPFLht1QPGylUYP1et0UDMjSn69qRGh8m49S7FxqTz/V0HFvXt86FFmUsunKXOJM2B48NLaw5M0jYAZvnAm+JdxKl8nFc/x8CkjQQvKLpE8xyDSymDBwQCzC+zygMYR5dTCuACcxfQxIyMlTYcfyBs= 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 Wed, Jun 18, 2025 at 08:42:53PM +0100, Lorenzo Stoakes wrote: > The core kernel code is currently very inconsistent in its use of > vm_flags_t vs. unsigned long. This prevents us from changing the type of > vm_flags_t in the future and is simply not correct, so correct this. > > While this results in rather a lot of churn, it is a critical pre-requisite > for a future planned change to VMA flag type. > > Additionally, update VMA userland tests to account for the changes. > > To make review easier and to break things into smaller parts, driver and > architecture-specific changes is left for a subsequent commit. > > The code has been adjusted to cascade the changes across all calling code > as far as is needed. > > We will adjust architecture-specific and driver code in a subsequent patch. > > Overall, this patch does not introduce any functional change. > > Signed-off-by: Lorenzo Stoakes > --- Acked-by: Christian Brauner