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([2a01:599:904:96e0:a245:aa9f:6c57:eb41]) by smtp.gmail.com with ESMTPSA id 5b1f17b1804b1-438dcc2c4ddsm51016365e9.17.2025.01.30.01.04.13 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Thu, 30 Jan 2025 01:04:15 -0800 (PST) Message-ID: Date: Thu, 30 Jan 2025 10:04:13 +0100 MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [PATCH v1 03/12] mm/rmap: convert make_device_exclusive_range() to make_device_exclusive() To: Alistair Popple Cc: linux-kernel@vger.kernel.org, linux-doc@vger.kernel.org, dri-devel@lists.freedesktop.org, linux-mm@kvack.org, nouveau@lists.freedesktop.org, Andrew Morton , =?UTF-8?B?SsOpcsO0bWUgR2xpc3Nl?= , Jonathan Corbet , Alex Shi , Yanteng Si , Karol Herbst , Lyude Paul , Danilo Krummrich , David Airlie , Simona Vetter , "Liam R. Howlett" , Lorenzo Stoakes , Vlastimil Babka , Jann Horn , Pasha Tatashin , Peter Xu , Jason Gunthorpe References: <20250129115411.2077152-1-david@redhat.com> <20250129115411.2077152-4-david@redhat.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 ZW5icmFuZCA8ZGF2aWRAcmVkaGF0LmNvbT7CwZgEEwEIAEICGwMGCwkIBwMCBhUIAgkKCwQW AgMBAh4BAheAAhkBFiEEG9nKrXNcTDpGDfzKTd4Q9wD/g1oFAl8Ox4kFCRKpKXgACgkQTd4Q 9wD/g1oHcA//a6Tj7SBNjFNM1iNhWUo1lxAja0lpSodSnB2g4FCZ4R61SBR4l/psBL73xktp rDHrx4aSpwkRP6Epu6mLvhlfjmkRG4OynJ5HG1gfv7RJJfnUdUM1z5kdS8JBrOhMJS2c/gPf wv1TGRq2XdMPnfY2o0CxRqpcLkx4vBODvJGl2mQyJF/gPepdDfcT8/PY9BJ7FL6Hrq1gnAo4 3Iv9qV0JiT2wmZciNyYQhmA1V6dyTRiQ4YAc31zOo2IM+xisPzeSHgw3ONY/XhYvfZ9r7W1l pNQdc2G+o4Di9NPFHQQhDw3YTRR1opJaTlRDzxYxzU6ZnUUBghxt9cwUWTpfCktkMZiPSDGd KgQBjnweV2jw9UOTxjb4LXqDjmSNkjDdQUOU69jGMUXgihvo4zhYcMX8F5gWdRtMR7DzW/YE BgVcyxNkMIXoY1aYj6npHYiNQesQlqjU6azjbH70/SXKM5tNRplgW8TNprMDuntdvV9wNkFs 9TyM02V5aWxFfI42+aivc4KEw69SE9KXwC7FSf5wXzuTot97N9Phj/Z3+jx443jo2NR34XgF 89cct7wJMjOF7bBefo0fPPZQuIma0Zym71cP61OP/i11ahNye6HGKfxGCOcs5wW9kRQEk8P9 M/k2wt3mt/fCQnuP/mWutNPt95w9wSsUyATLmtNrwccz63XOwU0EVcufkQEQAOfX3n0g0fZz Bgm/S2zF/kxQKCEKP8ID+Vz8sy2GpDvveBq4H2Y34XWsT1zLJdvqPI4af4ZSMxuerWjXbVWb T6d4odQIG0fKx4F8NccDqbgHeZRNajXeeJ3R7gAzvWvQNLz4piHrO/B4tf8svmRBL0ZB5P5A 2uhdwLU3NZuK22zpNn4is87BPWF8HhY0L5fafgDMOqnf4guJVJPYNPhUFzXUbPqOKOkL8ojk CXxkOFHAbjstSK5Ca3fKquY3rdX3DNo+EL7FvAiw1mUtS+5GeYE+RMnDCsVFm/C7kY8c2d0G NWkB9pJM5+mnIoFNxy7YBcldYATVeOHoY4LyaUWNnAvFYWp08dHWfZo9WCiJMuTfgtH9tc75 7QanMVdPt6fDK8UUXIBLQ2TWr/sQKE9xtFuEmoQGlE1l6bGaDnnMLcYu+Asp3kDT0w4zYGsx 5r6XQVRH4+5N6eHZiaeYtFOujp5n+pjBaQK7wUUjDilPQ5QMzIuCL4YjVoylWiBNknvQWBXS lQCWmavOT9sttGQXdPCC5ynI+1ymZC1ORZKANLnRAb0NH/UCzcsstw2TAkFnMEbo9Zu9w7Kv AxBQXWeXhJI9XQssfrf4Gusdqx8nPEpfOqCtbbwJMATbHyqLt7/oz/5deGuwxgb65pWIzufa N7eop7uh+6bezi+rugUI+w6DABEBAAHCwXwEGAEIACYCGwwWIQQb2cqtc1xMOkYN/MpN3hD3 AP+DWgUCXw7HsgUJEqkpoQAKCRBN3hD3AP+DWrrpD/4qS3dyVRxDcDHIlmguXjC1Q5tZTwNB boaBTPHSy/Nksu0eY7x6HfQJ3xajVH32Ms6t1trDQmPx2iP5+7iDsb7OKAb5eOS8h+BEBDeq 3ecsQDv0fFJOA9ag5O3LLNk+3x3q7e0uo06XMaY7UHS341ozXUUI7wC7iKfoUTv03iO9El5f XpNMx/YrIMduZ2+nd9Di7o5+KIwlb2mAB9sTNHdMrXesX8eBL6T9b+MZJk+mZuPxKNVfEQMQ a5SxUEADIPQTPNvBewdeI80yeOCrN+Zzwy/Mrx9EPeu59Y5vSJOx/z6OUImD/GhX7Xvkt3kq Er5KTrJz3++B6SH9pum9PuoE/k+nntJkNMmQpR4MCBaV/J9gIOPGodDKnjdng+mXliF3Ptu6 3oxc2RCyGzTlxyMwuc2U5Q7KtUNTdDe8T0uE+9b8BLMVQDDfJjqY0VVqSUwImzTDLX9S4g/8 kC4HRcclk8hpyhY2jKGluZO0awwTIMgVEzmTyBphDg/Gx7dZU1Xf8HFuE+UZ5UDHDTnwgv7E th6RC9+WrhDNspZ9fJjKWRbveQgUFCpe1sa77LAw+XFrKmBHXp9ZVIe90RMe2tRL06BGiRZr jPrnvUsUUsjRoRNJjKKA/REq+sAnhkNPPZ/NNMjaZ5b8Tovi8C0tmxiCHaQYqj7G2rgnT0kt WNyWQQ== Organization: Red Hat In-Reply-To: X-Mimecast-Spam-Score: 0 X-Mimecast-MFC-PROC-ID: YGrL_b-KMI_WJIed7MqAONDdq2gfvsUaohtSLJQLT_s_1738227856 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: 9014D40008 X-Stat-Signature: zijudizyydw1uerh8sy4m418bp1zcjps X-Rspam-User: X-Rspamd-Server: rspam12 X-HE-Tag: 1738227860-874173 X-HE-Meta: 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 6odCweXl 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 X-Bogosity: Ham, tests=bogofilter, spamicity=0.003432, version=1.2.4 Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: List-Subscribe: List-Unsubscribe: >> diff --git a/mm/rmap.c b/mm/rmap.c >> index 17fbfa61f7ef..676df4fba5b0 100644 >> --- a/mm/rmap.c >> +++ b/mm/rmap.c >> @@ -2495,70 +2495,78 @@ static bool folio_make_device_exclusive(struct folio *folio, >> .arg = &args, >> }; >> >> - /* >> - * Restrict to anonymous folios for now to avoid potential writeback >> - * issues. >> - */ >> - if (!folio_test_anon(folio) || folio_test_hugetlb(folio)) >> - return false; > > A bit of churn with the previous patch but I suppose it makes a stable backport > of the previous patch easier. Yes, that's the idea. Thanks! -- Cheers, David / dhildenb