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(p200300cbc73f8500f83c3602530088af.dip0.t-ipconnect.de. [2003:cb:c73f:8500:f83c:3602:5300:88af]) by smtp.gmail.com with ESMTPSA id 5b1f17b1804b1-428fe24a82fsm23957265e9.0.2024.08.06.06.18.20 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Tue, 06 Aug 2024 06:18:22 -0700 (PDT) Message-ID: <454177d0-d315-42dd-bec4-4dd0d2b7868d@redhat.com> Date: Tue, 6 Aug 2024 15:18:19 +0200 MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [PATCH v3 19/26] mm: introduce numa_emulation To: Dan Williams , Mike Rapoport , linux-kernel@vger.kernel.org Cc: Alexander Gordeev , Andreas Larsson , Andrew Morton , Arnd Bergmann , Borislav Petkov , Catalin Marinas , Christophe Leroy , Dave Hansen , "David S. Miller" , Davidlohr Bueso , Greg Kroah-Hartman , Heiko Carstens , Huacai Chen , Ingo Molnar , Jiaxun Yang , John Paul Adrian Glaubitz , Jonathan Cameron , Jonathan Corbet , Michael Ellerman , Palmer Dabbelt , "Rafael J. Wysocki" , Rob Herring , Samuel Holland , Thomas Bogendoerfer , Thomas Gleixner , Vasily Gorbik , Will Deacon , Zi Yan , devicetree@vger.kernel.org, linux-acpi@vger.kernel.org, linux-arch@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-cxl@vger.kernel.org, linux-doc@vger.kernel.org, linux-mips@vger.kernel.org, linux-mm@kvack.org, linux-riscv@lists.infradead.org, linux-s390@vger.kernel.org, linux-sh@vger.kernel.org, linuxppc-dev@lists.ozlabs.org, loongarch@lists.linux.dev, nvdimm@lists.linux.dev, sparclinux@vger.kernel.org, x86@kernel.org References: <20240801060826.559858-1-rppt@kernel.org> <20240801060826.559858-20-rppt@kernel.org> <66b1318ec02a0_c14482949@dwillia2-xfh.jf.intel.com.notmuch> 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: <66b1318ec02a0_c14482949@dwillia2-xfh.jf.intel.com.notmuch> 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: 5E5FE10002F X-Rspam-User: X-Rspamd-Server: rspam05 X-Stat-Signature: rs5p38pdye316yi8h75usqhsrxxrnpx5 X-HE-Tag: 1722950307-638828 X-HE-Meta: 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 D4ZrW/WY L+z5T4iw6Jd/ZVGnQLcnJ4XI6yrTggSxMQbZoE7PXhLdrwCRz+s7K/Aq3ExWsp/pbotvYfE1n8I3ObapeGNmAuTFSNi7W01DNZtrjKh6vlYl0eETsgbDQ891PUldgaLdeW9+Xdd3sTn9GObXsxV18RAwNbmjdg0I6SBzUr9ibKhN75RC6sucTWBpl9Fz0wDkfEpP/78WI65/KoT/C78bpdEFIl+SU2iA5Bs+c/yc5witZPoPPHGNWbZggFILC/57Wt2Y4+ooHr7wyueD31T/xFejB6Z2tcKEJr3bttPHNhcPoJMUld2RrLH8noWN+DunYYub1EbcYWidaY78qnLrBEvCEnfR4SJzR9XZpHvvYSGW7PbtV5H9WRrpsx+ggX4ujDfxU3DEHT29Ytwp7QGjBAXzj4FRH9DUCu0euKtfiTgCeXCYhnitqWpIGbfcosd7qmelgr2opyFj0irl6RUjY75UyVhRe/8xEMcEp 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 05.08.24 22:09, Dan Williams wrote: > Mike Rapoport wrote: >> From: "Mike Rapoport (Microsoft)" >> >> Move numa_emulation codfrom arch/x86 to mm/numa_emulation.c > > s/codfrom/code from/ > > I am surprised that numa-emulation stayed x86 only for so long. I think > it is useful facility for debugging NUMA scaling and heterogenous memory > topologies. So, glad to see it upleveled. I recall that s390x had NUMA emulation at some point (primarily to have multiple kthreads be responsible for different physical memory ranges), but it got removed a while ago. -- Cheers, David / dhildenb