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[87.161.174.152]) by smtp.gmail.com with ESMTPSA id ffacd0b85a97d-3e740369f1esm6798834f8f.11.2025.09.08.01.00.06 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Mon, 08 Sep 2025 01:00:08 -0700 (PDT) Message-ID: <28fc8fb3-f16b-4efb-b8e3-24081f035c73@redhat.com> Date: Mon, 8 Sep 2025 10:00:05 +0200 MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [PATCH v2 19/37] mm/gup: remove record_subpages() To: John Hubbard , linux-kernel@vger.kernel.org Cc: Alexander Potapenko , Andrew Morton , Brendan Jackman , Christoph Lameter , Dennis Zhou , Dmitry Vyukov , dri-devel@lists.freedesktop.org, intel-gfx@lists.freedesktop.org, iommu@lists.linux.dev, io-uring@vger.kernel.org, Jason Gunthorpe , Jens Axboe , Johannes Weiner , kasan-dev@googlegroups.com, kvm@vger.kernel.org, "Liam R. Howlett" , Linus Torvalds , linux-arm-kernel@axis.com, linux-arm-kernel@lists.infradead.org, linux-crypto@vger.kernel.org, linux-ide@vger.kernel.org, linux-kselftest@vger.kernel.org, linux-mips@vger.kernel.org, linux-mmc@vger.kernel.org, linux-mm@kvack.org, linux-riscv@lists.infradead.org, linux-s390@vger.kernel.org, linux-scsi@vger.kernel.org, Lorenzo Stoakes , Marco Elver , Marek Szyprowski , Michal Hocko , Mike Rapoport , Muchun Song , netdev@vger.kernel.org, Oscar Salvador , Peter Xu , Robin Murphy , Suren Baghdasaryan , Tejun Heo , virtualization@lists.linux.dev, Vlastimil Babka , wireguard@lists.zx2c4.com, x86@kernel.org, Zi Yan , Aristeu Rozanski References: <20250901150359.867252-1-david@redhat.com> <20250901150359.867252-20-david@redhat.com> <016307ba-427d-4646-8e4d-1ffefd2c1968@nvidia.com> <85e760cf-b994-40db-8d13-221feee55c60@redhat.com> <0a28adde-acaf-4d55-96ba-c32d6113285f@nvidia.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: <0a28adde-acaf-4d55-96ba-c32d6113285f@nvidia.com> X-Mimecast-Spam-Score: 0 X-Mimecast-MFC-PROC-ID: rwKisvtqfRTgUA_N44t6BJRgId1TSSHm3wTCILAJeGA_1757318409 X-Mimecast-Originator: redhat.com Content-Language: en-US Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit X-Rspamd-Server: rspam07 X-Rspamd-Queue-Id: 4B7E0A0005 X-Stat-Signature: cpns3bt1euz57fkupd55iywmx9rmzpyn X-Rspam-User: X-HE-Tag: 1757318420-203971 X-HE-Meta: U2FsdGVkX19OSNL2cIE/jLbb4UfOhWwscyGR3ePZvAivFXEpR9/FwhR4xzwt6azjJ5zHmJtKI1MXExF9CW110UbKu9E5a/aB/rgz3dTroHmVgzCs/YBeYu9zPbM/jiKBAMU9fXkXxFC/APLLRP1EsvkPveloBBNq9EXNf+Fr22HGuD0tcMAn/6O6Jnfek9I2KEMvWVzXsuh0et0blwL5NemVpOddij9oj2X3thviCNRcF/3wR/0IESCS/LFEcqRDx6f9pZps4aYFA6WZy7zHM2uinf0Lt863wZEZqdrGN+YzK5dyftxCdkmmL/xqlCgSLOkC0/J8ADf3g8VwwHuw5JwIcdxzel/NKGoLgl12kg0ZdmDuG6XdwhHyhTTHXKwLJKUIAA4LrliyyCoppKKAaXRHZ+Vy6uR7rccWdlKTHgNyowSPHAqufa0U2tspWMtbJqoxK/jOqT4Und3BO+ASLuiQu5mQpPEegjlYWeslA4EsNv2CpBL5DDLg8xAdAg0pqLBbxaomsTTT2cep5f76duzTZkirT914mx133G5SMaAM59T8d1cviT5gYgIIw/7QCtRun922CIka3dr671kF28kEheGLqv0WlDm7bIcpwBWtQx9KSnY2lmqlagiKAI5OlWAwYEtw5h1QuchkhgKapJvN0WOiQXj2oKg+NC5OwJEug4y9B1hBswdcL1z7PhnE08czRi0wym8bxGqEw6wOQCO1+NHqpkKLFLaYajeuPUBTRx5gpx9wMKqdWbhjDy3VsSJBSje1oh6cZr2pregR02LX/yBxQ0VNTCsf4EiX9+ye3uNZNTPeTnnpbRraNyn6CA7SAKpTgbvJ9btmyocE4DLwWuVMUmF/s7KfSabIHhbzx3zvXcWq+Fh6Hxm2dZRPyc6V3UEP3rhFAaN4YqtgFVpTdg+88bRIZzrB4uv6aTvefPxDkzLgT5acux7hE7JQ8YAd4F4gzPGhaDOIaHI dcZOY/z0 GdZUxJ9phXVm3RHlW3y/9/BIEED/6+utuAnbQf5Ht5N/PmGCVtM2OouO+Au5BoHWx2JaNp6Tt4/yzMG21bVta8axdzAMX7G8B/NX+v1SJ3acgiJXs/X2mfITUTLiQ0v/qcp2qjWubV8EMy53fn6tY1/JXr3x7Z8ZRAFGbIt8PwlQtF+tRndptFsb0CBYSnaDpqG2uoqZ+iEpFSWiTCP4BLGfck5QMGJReBkrswPrKSJ7pKhKnurtlakSbVLXRmHYfc605yb3VXfxgafnRLdXKBSp4h6fvVQpZO9AI7DIQB1lV62RIjjRGgrdXPlHU2C9S0qVMbpDKNwUSmsBGykqRjQSknXb0r16OnB/OghJ3qdHrESh5+Li1iBfPKzJP7dgPvCoM0ZutlPlgyAs= 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: >> Roughly, what I am thinking (limiting it to pte+pmd case) about is the >> following: > > The code below looks much cleaner, that's great! Great, I (or Aristeu if he has capacity) will clean this all up soon. -- Cheers David / dhildenb