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[2003:d8:2f25:bd00:949:b5a9:e02a:f265]) by smtp.gmail.com with ESMTPSA id ffacd0b85a97d-3a568a800d9sm11122212f8f.45.2025.06.16.07.31.02 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Mon, 16 Jun 2025 07:31:03 -0700 (PDT) Message-ID: Date: Mon, 16 Jun 2025 16:31:01 +0200 MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [PATCH v7 03/11] mm,memory_hotplug: Implement numa node notifier To: Oscar Salvador , Andrew Morton Cc: Vlastimil Babka , Jonathan Cameron , Harry Yoo , Rakie Kim , Hyeonggon Yoo <42.hyeyoo@gmail.com>, linux-mm@kvack.org, linux-kernel@vger.kernel.org References: <20250616135158.450136-1-osalvador@suse.de> <20250616135158.450136-4-osalvador@suse.de> 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: <20250616135158.450136-4-osalvador@suse.de> X-Mimecast-Spam-Score: 0 X-Mimecast-MFC-PROC-ID: C572AuL6YNPBFqMKEzCVsMga72UClwYoPwo0mE9xAM0_1750084264 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: rspam05 X-Rspamd-Queue-Id: B9E1B10000F X-Stat-Signature: 183dbny9tytbhi1ccwxt3j4c7xkrypxt X-Rspam-User: X-HE-Tag: 1750084269-796680 X-HE-Meta: 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 sETMH4WN 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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 16.06.25 15:51, Oscar Salvador wrote: > There are at least six consumers of hotplug_memory_notifier that what they > really are interested in is whether any numa node changed its state, e.g: going > from having memory to not having memory and vice versa. > > Implement a specific notifier for numa nodes when their state gets changed, > which will later be used by those consumers that are only interested > in numa node state changes. > > Add documentation as well. > > Signed-off-by: Oscar Salvador > Reviewed-by: Jonathan Cameron > Reviewed-by: Harry Yoo > Reviewed-by: Vlastimil Babka > --- Thanks Oscar! Acked-by: David Hildenbrand -- Cheers, David / dhildenb