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([2a09:80c0:192:0:5dac:bf3d:c41:c3e7]) by smtp.gmail.com with ESMTPSA id 5b1f17b1804b1-4215c1aa2f7sm133235285e9.14.2024.06.10.01.56.18 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Mon, 10 Jun 2024 01:56:19 -0700 (PDT) Message-ID: Date: Mon, 10 Jun 2024 10:56:18 +0200 MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [PATCH v1 3/3] mm/memory_hotplug: skip adjust_managed_page_count() for PageOffline() pages when offlining To: Oscar Salvador Cc: linux-kernel@vger.kernel.org, linux-mm@kvack.org, linux-hyperv@vger.kernel.org, virtualization@lists.linux.dev, xen-devel@lists.xenproject.org, kasan-dev@googlegroups.com, Andrew Morton , Mike Rapoport , "K. Y. Srinivasan" , Haiyang Zhang , Wei Liu , Dexuan Cui , "Michael S. Tsirkin" , Jason Wang , Xuan Zhuo , =?UTF-8?Q?Eugenio_P=C3=A9rez?= , Juergen Gross , Stefano Stabellini , Oleksandr Tyshchenko , Alexander Potapenko , Marco Elver , Dmitry Vyukov References: <20240607090939.89524-1-david@redhat.com> <20240607090939.89524-4-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-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-Server: rspam09 X-Rspamd-Queue-Id: 7035340003 X-Stat-Signature: 4ib9xqqrn1poys9wf69bco9sbgfz49k3 X-HE-Tag: 1718009783-20956 X-HE-Meta: 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 eM0Er2lQ 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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 10.06.24 06:29, Oscar Salvador wrote: > On Fri, Jun 07, 2024 at 11:09:38AM +0200, David Hildenbrand wrote: >> We currently have a hack for virtio-mem in place to handle memory >> offlining with PageOffline pages for which we already adjusted the >> managed page count. >> >> Let's enlighten memory offlining code so we can get rid of that hack, >> and document the situation. >> >> Signed-off-by: David Hildenbrand > > Acked-by: Oscar Salvador > Thanks for the review! -- Cheers, David / dhildenb