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[87.161.167.7]) by smtp.gmail.com with ESMTPSA id ffacd0b85a97d-3a35ca4d258sm11744785f8f.20.2025.05.19.00.44.19 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Mon, 19 May 2025 00:44:20 -0700 (PDT) Message-ID: <55f41277-f686-455c-a6ac-86c7e952beb0@redhat.com> Date: Mon, 19 May 2025 09:44:19 +0200 MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [PATCH v4 0/4] Make MIGRATE_ISOLATE a standalone bit To: Zi Yan , Oscar Salvador , Johannes Weiner , linux-mm@kvack.org Cc: Andrew Morton , Vlastimil Babka , Baolin Wang , "Kirill A . Shutemov" , Mel Gorman , Suren Baghdasaryan , Michal Hocko , Brendan Jackman , Richard Chang , linux-kernel@vger.kernel.org References: <20250509200111.3372279-1-ziy@nvidia.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: <20250509200111.3372279-1-ziy@nvidia.com> X-Mimecast-Spam-Score: 0 X-Mimecast-MFC-PROC-ID: rz8xb73DB-178BDgCns6m8Od4h-qYgCxO_ps6yckPI4_1747640661 X-Mimecast-Originator: redhat.com Content-Language: en-US Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit X-Rspam-User: X-Rspamd-Queue-Id: 8D92A180006 X-Rspamd-Server: rspam09 X-Stat-Signature: iwnueo9qgopypm6c7qkmn1fykh7t1orz X-HE-Tag: 1747640664-5921 X-HE-Meta: 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 BlM+EG/r NYnmMCiZIvl0/lqoAgQ4t0VDVfL3o5ihJobkvdxsjSYXrR+R9HCo7y8HfJoLAmjbVbGCgbI7CGZVv3lbvPfm3DUhf9b07eWsqJZBtBrISMraTQ6T2Go18y8jnYar4cOvaAl3YGMDPG3Ro3M19ORIUPOCgQ4npVfXJ1YLAQ0Xau+CZHZsVCKXEpdc8QslJbeKkhSMTer1+Gbsvxb6scf5egF528T6VT5j1j2d5VPe3hHjDszjVu5cqFTeWhO/CkTWcYnvXokwWRri/lMYopHoBrJOHP+2Ttj6YKCy5++3uWRudpEH/87NJ5oBhlzNEhcsQ78wZ6aZmSrKkSVle3jJJcNdn+4rjaofdYh7j/nIF7NE52xVAzdXTW9GNlTGsjQS2QBhD4XuVbWSiCHebA1RLbvEFd7AnQPz3EXAtHenG0Aii1dWGNpEP8mVIb6Y8F3Mw65HnAVjNH9RxljMrVu3y1oxHWA== 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 09.05.25 22:01, Zi Yan wrote: > Hi David and Oscar, Hi, > > Can you take a look at Patch 2, which changes how online_pages() set > online pageblock migratetypes? Sorry, now looking :) > It used to first set all pageblocks to > MIGRATE_ISOLATE, then let undo_isolate_page_range() move the pageblocks > to MIGRATE_MOVABLE. After MIGRATE_ISOLATE becomes a standalone bit, all > online pageblocks need to have a migratetype other than MIGRATE_ISOLATE. > Let me know if there is any issue with my changes. Conceptually, we should start with MIGRATE_MOVABLE + isolated, to then clear the isolated bit. Let me take a look. -- Cheers, David / dhildenb