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[2003:cb:c71b:7e00:9339:4017:7111:82d0]) by smtp.gmail.com with ESMTPSA id j8-20020a05600c190800b004140c161e8dsm9202436wmq.43.2024.03.22.08.04.52 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Fri, 22 Mar 2024 08:04:53 -0700 (PDT) Message-ID: Date: Fri, 22 Mar 2024 16:04:52 +0100 MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [PATCH 4/9] mm: Support page_mapcount() on page_has_type() pages To: "Matthew Wilcox (Oracle)" , Andrew Morton Cc: linux-mm@kvack.org, Vlastimil Babka , Miaohe Lin , Muchun Song , Oscar Salvador References: <20240321142448.1645400-1-willy@infradead.org> <20240321142448.1645400-5-willy@infradead.org> 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: <20240321142448.1645400-5-willy@infradead.org> X-Mimecast-Spam-Score: 0 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: B24968002C X-Rspam-User: X-Rspamd-Server: rspam02 X-Stat-Signature: aak1kkuxinrujmy35fey15qn33t8xxhd X-HE-Tag: 1711119897-827793 X-HE-Meta: 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 TtWzcbhM 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 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 21.03.24 15:24, Matthew Wilcox (Oracle) wrote: > Return 0 for pages which can't be mapped. This matches how page_mapped() > works. It is more convenient for users to not have to filter out > these pages. > > Signed-off-by: Matthew Wilcox (Oracle) > --- Reviewed-by: David Hildenbrand -- Cheers, David / dhildenb