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Fri, 20 Jun 2025 18:49:40 +0000 (UTC) Received: from dovecot-director2.suse.de ([2a07:de40:b281:106:10:150:64:167]) by imap1.dmz-prg2.suse.org with ESMTPSA id QRKIIkStVWinFwAAD6G6ig (envelope-from ); Fri, 20 Jun 2025 18:49:40 +0000 Date: Fri, 20 Jun 2025 19:49:34 +0100 From: Pedro Falcato 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 , Christian Brauner , 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 , 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: References: MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: X-Rspamd-Action: no action X-Rspamd-Queue-Id: A92FC160008 X-Stat-Signature: kud8idxfonsugdztofaa995fni4dbwfr X-Rspam-User: X-Rspamd-Server: rspam04 X-HE-Tag: 1750445386-405247 X-HE-Meta: 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 1kyAJcOs aSwN89eSPF/wKaR7EpXbHmnZq/BD7X0B0STUfyeirCzq2ndlUstl3DhSfwdyj89UzCLsxyeyXNXdsSpwROS3oNgxRVL+upy1lOMcZfLdilo1fWKm/eQkDVpK7WUe/pd6RYs/HpcLj/hCJw9OfHS5WiN4COTJpHISfj+5yI2fRBhHf84odB+4oIk/n1z3kVbkSwqTL6AvMStvfl0LOWcm434zylhrsTVW2uU0J3DB3vV8UPKuJqvg2cdbgti3Hz1tIF9j6K4rpEwm8U7ufZvVTpHS75Z1dXK6HHEhgBzgqMnCHdDkejsFQAPBuOlsMiqJpKbgB3qpeVVch8Mq/Yir6A/BDSpjZBZtUITdae3G1xygDRE8G3iESimijPf0qtQSFjARoXCuxPfEY+2ZzvIw1Y+biVw== 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 Reviewed-by: Pedro Falcato -- Pedro