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(p200300d82f250700d84615f36ca08029.dip0.t-ipconnect.de. [2003:d8:2f25:700:d846:15f3:6ca0:8029]) by smtp.gmail.com with ESMTPSA id ffacd0b85a97d-3e115c4f755sm17147156f8f.39.2025.09.08.08.03.54 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Mon, 08 Sep 2025 08:03:56 -0700 (PDT) Message-ID: Date: Mon, 8 Sep 2025 17:03:54 +0200 MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [PATCH 02/16] device/dax: update devdax to use mmap_prepare To: Lorenzo Stoakes , Andrew Morton Cc: 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 , 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 , Pedro Falcato , 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 References: <85681b9c085ee723f6ad228543c300b029d49cbc.1757329751.git.lorenzo.stoakes@oracle.com> From: David Hildenbrand Autocrypt: addr=david@redhat.com; keydata= xsFNBFXLn5EBEAC+zYvAFJxCBY9Tr1xZgcESmxVNI/0ffzE/ZQOiHJl6mGkmA1R7/uUpiCjJ dBrn+lhhOYjjNefFQou6478faXE6o2AhmebqT4KiQoUQFV4R7y1KMEKoSyy8hQaK1umALTdL QZLQMzNE74ap+GDK0wnacPQFpcG1AE9RMq3aeErY5tujekBS32jfC/7AnH7I0v1v1TbbK3Gp XNeiN4QroO+5qaSr0ID2sz5jtBLRb15RMre27E1ImpaIv2Jw8NJgW0k/D1RyKCwaTsgRdwuK Kx/Y91XuSBdz0uOyU/S8kM1+ag0wvsGlpBVxRR/xw/E8M7TEwuCZQArqqTCmkG6HGcXFT0V9 PXFNNgV5jXMQRwU0O/ztJIQqsE5LsUomE//bLwzj9IVsaQpKDqW6TAPjcdBDPLHvriq7kGjt WhVhdl0qEYB8lkBEU7V2Yb+SYhmhpDrti9Fq1EsmhiHSkxJcGREoMK/63r9WLZYI3+4W2rAc UucZa4OT27U5ZISjNg3Ev0rxU5UH2/pT4wJCfxwocmqaRr6UYmrtZmND89X0KigoFD/XSeVv jwBRNjPAubK9/k5NoRrYqztM9W6sJqrH8+UWZ1Idd/DdmogJh0gNC0+N42Za9yBRURfIdKSb B3JfpUqcWwE7vUaYrHG1nw54pLUoPG6sAA7Mehl3nd4pZUALHwARAQABzSREYXZpZCBIaWxk ZW5icmFuZCA8ZGF2aWRAcmVkaGF0LmNvbT7CwZoEEwEIAEQCGwMCF4ACGQEFCwkIBwICIgIG FQoJCAsCBBYCAwECHgcWIQQb2cqtc1xMOkYN/MpN3hD3AP+DWgUCaJzangUJJlgIpAAKCRBN 3hD3AP+DWhAxD/9wcL0A+2rtaAmutaKTfxhTP0b4AAp1r/eLxjrbfbCCmh4pqzBhmSX/4z11 opn2KqcOsueRF1t2ENLOWzQu3Roiny2HOU7DajqB4dm1BVMaXQya5ae2ghzlJN9SIoopTWlR 0Af3hPj5E2PYvQhlcqeoehKlBo9rROJv/rjmr2x0yOM8qeTroH/ZzNlCtJ56AsE6Tvl+r7cW 3x7/Jq5WvWeudKrhFh7/yQ7eRvHCjd9bBrZTlgAfiHmX9AnCCPRPpNGNedV9Yty2Jnxhfmbv Pw37LA/jef8zlCDyUh2KCU1xVEOWqg15o1RtTyGV1nXV2O/mfuQJud5vIgzBvHhypc3p6VZJ lEf8YmT+Ol5P7SfCs5/uGdWUYQEMqOlg6w9R4Pe8d+mk8KGvfE9/zTwGg0nRgKqlQXrWRERv cuEwQbridlPAoQHrFWtwpgYMXx2TaZ3sihcIPo9uU5eBs0rf4mOERY75SK+Ekayv2ucTfjxr Kf014py2aoRJHuvy85ee/zIyLmve5hngZTTe3Wg3TInT9UTFzTPhItam6dZ1xqdTGHZYGU0O otRHcwLGt470grdiob6PfVTXoHlBvkWRadMhSuG4RORCDpq89vu5QralFNIf3EysNohoFy2A LYg2/D53xbU/aa4DDzBb5b1Rkg/udO1gZocVQWrDh6I2K3+cCs7BTQRVy5+RARAA59fefSDR 9nMGCb9LbMX+TFAoIQo/wgP5XPyzLYakO+94GrgfZjfhdaxPXMsl2+o8jhp/hlIzG56taNdt VZtPp3ih1AgbR8rHgXw1xwOpuAd5lE1qNd54ndHuADO9a9A0vPimIes78Hi1/yy+ZEEvRkHk /kDa6F3AtTc1m4rbbOk2fiKzzsE9YXweFjQvl9p+AMw6qd/iC4lUk9g0+FQXNdRs+o4o6Qvy iOQJfGQ4UcBuOy1IrkJrd8qq5jet1fcM2j4QvsW8CLDWZS1L7kZ5gT5EycMKxUWb8LuRjxzZ 3QY1aQH2kkzn6acigU3HLtgFyV1gBNV44ehjgvJpRY2cC8VhanTx0dZ9mj1YKIky5N+C0f21 zvntBqcxV0+3p8MrxRRcgEtDZNav+xAoT3G0W4SahAaUTWXpsZoOecwtxi74CyneQNPTDjNg azHmvpdBVEfj7k3p4dmJp5i0U66Onmf6mMFpArvBRSMOKU9DlAzMi4IvhiNWjKVaIE2Se9BY FdKVAJaZq85P2y20ZBd08ILnKcj7XKZkLU5FkoA0udEBvQ0f9QLNyyy3DZMCQWcwRuj1m73D sq8DEFBdZ5eEkj1dCyx+t/ga6x2rHyc8Sl86oK1tvAkwBNsfKou3v+jP/l14a7DGBvrmlYjO 59o3t6inu6H7pt7OL6u6BQj7DoMAEQEAAcLBfAQYAQgAJgIbDBYhBBvZyq1zXEw6Rg38yk3e EPcA/4NaBQJonNqrBQkmWAihAAoJEE3eEPcA/4NaKtMQALAJ8PzprBEXbXcEXwDKQu+P/vts IfUb1UNMfMV76BicGa5NCZnJNQASDP/+bFg6O3gx5NbhHHPeaWz/VxlOmYHokHodOvtL0WCC 8A5PEP8tOk6029Z+J+xUcMrJClNVFpzVvOpb1lCbhjwAV465Hy+NUSbbUiRxdzNQtLtgZzOV Zw7jxUCs4UUZLQTCuBpFgb15bBxYZ/BL9MbzxPxvfUQIPbnzQMcqtpUs21CMK2PdfCh5c4gS sDci6D5/ZIBw94UQWmGpM/O1ilGXde2ZzzGYl64glmccD8e87OnEgKnH3FbnJnT4iJchtSvx yJNi1+t0+qDti4m88+/9IuPqCKb6Stl+s2dnLtJNrjXBGJtsQG/sRpqsJz5x1/2nPJSRMsx9 5YfqbdrJSOFXDzZ8/r82HgQEtUvlSXNaXCa95ez0UkOG7+bDm2b3s0XahBQeLVCH0mw3RAQg r7xDAYKIrAwfHHmMTnBQDPJwVqxJjVNr7yBic4yfzVWGCGNE4DnOW0vcIeoyhy9vnIa3w1uZ 3iyY2Nsd7JxfKu1PRhCGwXzRw5TlfEsoRI7V9A8isUCoqE2Dzh3FvYHVeX4Us+bRL/oqareJ CIFqgYMyvHj7Q06kTKmauOe4Nf0l0qEkIuIzfoLJ3qr5UyXc2hLtWyT9Ir+lYlX9efqh7mOY qIws/H2t In-Reply-To: <85681b9c085ee723f6ad228543c300b029d49cbc.1757329751.git.lorenzo.stoakes@oracle.com> X-Mimecast-Spam-Score: 0 X-Mimecast-MFC-PROC-ID: XaqqlC4LPGU4k7nUA8ShOBJfwq_GL8jGr4EWKQnoHIg_1757343838 X-Mimecast-Originator: redhat.com Content-Language: en-US Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit X-Rspamd-Queue-Id: 09FF28000E X-Stat-Signature: fi5asrcxb858z9sm965me7nc4gy9cdu7 X-Rspam-User: X-Rspamd-Server: rspam01 X-HE-Tag: 1757343840-739729 X-HE-Meta: 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 mp8Q9/n1 LEK6S6WOtkzskIqIg5u7/x5CPrE9mxxqCzfzLgbcIqTgLbKrRL5vjopURTDkXF3mVl4jbzg1CIHOTIdEsLRWjm9UTVrhkUTyKgCNAHf4lGRYLn5k7gofsuJobaILeHh6c3Kky 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 08.09.25 13:10, Lorenzo Stoakes wrote: > The devdax driver does nothing special in its f_op->mmap hook, so > straightforwardly update it to use the mmap_prepare hook instead. > > Signed-off-by: Lorenzo Stoakes > --- > drivers/dax/device.c | 32 +++++++++++++++++++++----------- > 1 file changed, 21 insertions(+), 11 deletions(-) > > diff --git a/drivers/dax/device.c b/drivers/dax/device.c > index 2bb40a6060af..c2181439f925 100644 > --- a/drivers/dax/device.c > +++ b/drivers/dax/device.c > @@ -13,8 +13,9 @@ > #include "dax-private.h" > #include "bus.h" > > -static int check_vma(struct dev_dax *dev_dax, struct vm_area_struct *vma, > - const char *func) > +static int __check_vma(struct dev_dax *dev_dax, vm_flags_t vm_flags, > + unsigned long start, unsigned long end, struct file *file, > + const char *func) In general Acked-by: David Hildenbrand The only thing that bugs me is __check_vma() that does not check a vma. Maybe something along the lines of "check_vma_properties" Not sure. -- Cheers David / dhildenb