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Wed, 17 Sep 2025 11:12:18 +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 MRcsO5KXymghRQAAD6G6ig (envelope-from ); Wed, 17 Sep 2025 11:12:18 +0000 Date: Wed, 17 Sep 2025 12:12:17 +0100 From: Pedro Falcato To: Lorenzo Stoakes Cc: Andrew Morton , Jonathan Corbet , Matthew Wilcox , Guo Ren , Thomas Bogendoerfer , Heiko Carstens , Vasily Gorbik , Alexander Gordeev , Christian Borntraeger , Sven Schnelle , "David S . Miller" , Andreas Larsson , Arnd Bergmann , Greg Kroah-Hartman , Dan Williams , Vishal Verma , Dave Jiang , Nicolas Pitre , Muchun Song , Oscar Salvador , David Hildenbrand , Konstantin Komarov , Baoquan He , Vivek Goyal , Dave Young , Tony Luck , Reinette Chatre , Dave Martin , James Morse , Alexander Viro , Christian Brauner , Jan Kara , "Liam R . Howlett" , Vlastimil Babka , Mike Rapoport , Suren Baghdasaryan , Michal Hocko , Hugh Dickins , Baolin Wang , Uladzislau Rezki , Dmitry Vyukov , Andrey Konovalov , Jann Horn , linux-doc@vger.kernel.org, linux-kernel@vger.kernel.org, linux-fsdevel@vger.kernel.org, linux-csky@vger.kernel.org, linux-mips@vger.kernel.org, linux-s390@vger.kernel.org, sparclinux@vger.kernel.org, nvdimm@lists.linux.dev, linux-cxl@vger.kernel.org, linux-mm@kvack.org, ntfs3@lists.linux.dev, kexec@lists.infradead.org, kasan-dev@googlegroups.com, Jason Gunthorpe , iommu@lists.linux.dev, Kevin Tian , Will Deacon , Robin Murphy Subject: Re: [PATCH v3 07/13] mm: introduce io_remap_pfn_range_[prepare, complete]() Message-ID: References: <3d8f72ece78c1b470382b6a1f12eef0eacd4c068.1758031792.git.lorenzo.stoakes@oracle.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <3d8f72ece78c1b470382b6a1f12eef0eacd4c068.1758031792.git.lorenzo.stoakes@oracle.com> X-Rspamd-Queue-Id: 47F3C40013 X-Rspamd-Server: rspam05 X-Stat-Signature: ettxijzfukmwncdxw6sep9f7w9qf7dxq X-Rspam-User: X-HE-Tag: 1758107544-412688 X-HE-Meta: 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 CZ6LDrh3 cPx0W3qtK94BO9jZ9Vj5Vuk1Ooaqndu2pS+4LVl9HRJEum20jQU9WLPl85OpVt9lTdxjLiSc+Kabh+aHgFnVwCfV49GALT64LeO+NlpKHtRiH9C7SqK5zK6UlD62UPcDVw8wm5PNgbnMEERaJFhYsuZpoW6fQaQYrOhjSRZzQcvmYH7a7i88r1oMPwEjNeeq8b2E7+GY38nEB7/bMnxE5t7Iq82gNSj4hOFW82ydHpOOA7bOsSJd8gO5kssRyKBKY2kZ0Tirv7DNKipNv1kkR1Jf8RFe3FRrEWrNSVOiDELWuLsDLtvlNDLhnG5LaNz4Bx2c9qvlf7gEzmdbrSHfZZKjMn8qx43qjm8U5QD4it4fb0SK5sLkG5jR/nKhxvwTM56k3GlJLXMd332GDqCmQCUauYnJDmVeL+jHd 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 Tue, Sep 16, 2025 at 03:11:53PM +0100, Lorenzo Stoakes wrote: > We introduce the io_remap*() equivalents of remap_pfn_range_prepare() and > remap_pfn_range_complete() to allow for I/O remapping via mmap_prepare. > > We have to make some architecture-specific changes for those architectures > which define customised handlers. > > It doesn't really make sense to make this internal-only as arches specify > their version of these functions so we declare these in mm.h. Similar question to the remap_pfn_range patch. > > Signed-off-by: Lorenzo Stoakes Looks ok, but again, i'm no expert on this. Acked-by: Pedro Falcato -- Pedro