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migrate_pfn_from_page() helper To: "David Hildenbrand (Arm)" , linux-mm@kvack.org Cc: balbirs@nvidia.com, matthew.brost@intel.com, akpm@linux-foundation.org, linux-kernel@vger.kernel.org, dri-devel@lists.freedesktop.org, ziy@nvidia.com, apopple@nvidia.com, lorenzo.stoakes@oracle.com, lyude@redhat.com, dakr@kernel.org, airlied@gmail.com, simona@ffwll.ch, rcampbell@nvidia.com, mpenttil@redhat.com, jgg@nvidia.com, willy@infradead.org, linuxppc-dev@lists.ozlabs.org, intel-xe@lists.freedesktop.org, jgg@ziepe.ca, Felix.Kuehling@amd.com, jhubbard@nvidia.com, maddy@linux.ibm.com, mpe@ellerman.id.au, ying.huang@linux.alibaba.com References: <20260202113642.59295-1-jniethe@nvidia.com> <20260202113642.59295-2-jniethe@nvidia.com> <9ee22635-a219-47bb-a397-bc4e141b408d@kernel.org> Content-Language: en-US From: Jordan Niethe In-Reply-To: <9ee22635-a219-47bb-a397-bc4e141b408d@kernel.org> Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit X-ClientProxiedBy: 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U2FsdGVkX1851hBRxcTB3qsMo8i/6Y1E0U53mTrKEnLlb2m+SFr1FRyB/PrzUU4pFt5/Krx+ze4ysAq1en4yeSlfJNv6Eni9/3h4j2XkmvGtdPfrrybrwRcYX1KqGoZLT8BqEjwL7lSa6XA8lgVMBGUp9kwpMsMOGzgmDJv9WEf+dNHZxpnPY5v8MSz7TihPI327MH2NiqE84FvLFkhpeDqh+RIPfkj3wPFIKwIJWlxdyaXwfM6fwtPUJcGuZZQAx9w629uj4eRqTVj0kpFr21Y9/FVMqa9z4cwgmq5C6yqNLyV0XNhBNcwJhOuTs8AFSG9OHSUR5S6loGWPhbGryCknmLza0jdYGeNHFR7maT2QxYDqCbm8CIxCkD7DeOHNxUSLzaToAefB9bF4w8WyPIMxNTtq4P6U2PhRUd034aVJVZFakBOnmc7LYFEMjSCIdPandEMv7oyNMElRrPaPN/3Bshppp0v9itpFc5QIqEYh70HCgBnjXWBig7bOWovIalgmFz5fIdo8Qm+NkkIUUABmq5dPWFdhCk2a+B50uRF/RQaft1EpA/mp2diDEY4fFjKyP/WMjN2r8ixkXdtcWPQ0m/yxSBSt6n8fp7+K1/O0E+kR7Twrrc678mqIjqEFvJhlx0109Appmm32VYiAux11BzgM29O4T5fUBALOJ3Ud0rgnD9h2Yz1hD3/GKdpZvXhN15vdNhXoc13tJLxRJMz5qDbsPxaRkxtIprVrEgxgMB8tCZjylZ6vaxrPNyejmzaj3T6LG3SWrHM6C8vEyBAnTr+yXmQUdmUAGnDRVxYDKx8t1s83xNTqs/ct6c7/kgVwtE0hG/gOli5Z8jGpWgHy9IiE5inK2btLx+BPX5FyIMZi+hdIOCx3vKTi6qlCacrxytbCfqi3zYb+EFFcEz6akO2rV9PZu/5L8yugclZPG4DjU3nmJjm5jYB7MIjhs142dPVO0QrZsQvJ1Mr BDBtgnZP 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This will mean that device private pages no longer have a >> pfn and must be handled separately. >> >> Prepare for this with a new helper: >> >> - migrate_pfn_from_page() >> >> This helper takes a struct page as parameter instead of a pfn. This will >> allow more flexibility for handling the mpfn differently for device >> private pages. >> >> Reviewed-by: Balbir Singh >> Acked-by: Felix Kuehling >> Signed-off-by: Jordan Niethe >> --- > > Acked-by: David Hildenbrand (Arm) Thanks David, Jordan. >