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Sun, 1 Mar 2026 23:38:39 +0000 Received: from DM4PR12MB9072.namprd12.prod.outlook.com ([fe80::32dc:be07:3859:b4e3]) by DM4PR12MB9072.namprd12.prod.outlook.com ([fe80::32dc:be07:3859:b4e3%4]) with mapi id 15.20.9654.015; Sun, 1 Mar 2026 23:38:38 +0000 Message-ID: Date: Mon, 2 Mar 2026 10:38:24 +1100 User-Agent: Mozilla Thunderbird Subject: Re: [PATCH v6 01/13] mm/migrate_device: Introduce 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; 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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. >