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[2003:cb:c705:4300:16d5:c5b:8388:a734]) by smtp.gmail.com with ESMTPSA id 5b1f17b1804b1-42ab87f26c0sm56818535e9.1.2024.08.21.14.06.07 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Wed, 21 Aug 2024 14:06:07 -0700 (PDT) Message-ID: <307557a0-a980-44a2-9250-290b4304b0bd@redhat.com> Date: Wed, 21 Aug 2024 23:06:06 +0200 MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [PATCH 4/4] zsmalloc: Use all available 24 bits of page_type To: "Matthew Wilcox (Oracle)" , Andrew Morton Cc: Hyeonggon Yoo <42.hyeyoo@gmail.com>, linux-mm@kvack.org, Kent Overstreet References: <20240821173914.2270383-1-willy@infradead.org> <20240821173914.2270383-5-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: <20240821173914.2270383-5-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-Server: rspam12 X-Rspamd-Queue-Id: 03387120019 X-Stat-Signature: oy86ow9akraursmn6xjg5pjqt97cqtwt X-Rspam-User: X-HE-Tag: 1724274371-127510 X-HE-Meta: U2FsdGVkX18oor4DCiXf0kb/fx9O6MTuiWHbtwfbvbhSvXCtPUASJzYfNCTyw6hAxIn7Pq9L8s49J7zU/ukFQTv43DYTYIuvpZbMXMWXEl52/PjN1PCrAEsJYQ2tWzbBker/wGUTHc/OIuFsv9n+047SYccbjC1BrjKeZA5Nij2FnxjOxU2n2d6fj55L9mNJrLCOweEjTb5FZS6I5dxZnRC9/zNDvpHgBcExFv4Ftl5PsMXVY3XwJ8xcZHpwDfMCqU+x9bmiqsqMDE9qOR0bdKGEyegyaTAeMSuJFiydqt7rmzkXXpCDgYNIpQ4fNvWXOszjzfbEqtbZGeBGhNjWUxWmNktt9BM8IrOukJwYD9XuQ8o4TPC0gJTl0KbqNibFEpx0wZ1sKxIR5tbsNH+Sh27wbdOaJc+XqlYHbxTIRDGtWWoMExFTfPWnVgRepHQvFQ3E1Mu+EUn9zuG8rLggTQfP3LRxtKSv6jo6KKGhRIhhUD5fDE23uPIkLO+eCNZobLIz1T2SssM5WtTZOUHANMvMYRwhFEnzcXaKq964fmHFztWHgA33pgEbegPcG6axyaMLnmJTstDJJc2XhGnlTzMC7L1ZDHlSp7lC1YY7dh4wPMWOx3QL4Ow41zyyrpdbBeyOU3tOfcXMnfhcny72qcy/hhbRswqyKbqOgi0l6nS1ODissjtC4lhLLa7cCET0gK1ybBmtLUAI3+77qIVKSbg2RajQmQUrJUxberPnDqI0BQrqWn5GaI0/6xYUJcunKR1nsZ9aJaCHvA3v+kH65Iey00diCINUWz4ZuI2p4Mv2SF+wX/uj6YhztolROlHX6idPRfKinQJQeo/N9a4JJEsLNB9Reoq0Df0XNWHXowVe30tDp7syemUfpsQB6Z1AlKfjkgT5UPvG/c6k+UMqgmfQDMBbWAD+0EIoKIZC433I3rHMDvcSoxm1jLtCXNQkXub2THlpTpjCKvJDJC5 HhC1mTr/ 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 X-Bogosity: Ham, tests=bogofilter, spamicity=0.000002, 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 21.08.24 19:39, Matthew Wilcox (Oracle) wrote: > Now that we have an extra 8 bits, we don't need to limit ourselves to > supporting a 64KiB page size. I'm sure both Hexagon users are grateful, > but it does reduce complexity a little. We can also remove > reset_first_obj_offset() as calling __ClearPageZsmalloc() will now reset > all 32 bits of page_type. Acked-by: David Hildenbrand -- Cheers, David / dhildenb