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(p200300cbc716c800ed2f91bf8c467078.dip0.t-ipconnect.de. [2003:cb:c716:c800:ed2f:91bf:8c46:7078]) by smtp.gmail.com with ESMTPSA id k24-20020a5d5258000000b00332d04514b9sm2005552wrc.95.2023.11.23.08.05.38 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Thu, 23 Nov 2023 08:05:39 -0800 (PST) Message-ID: <7f76ee6c-f0e6-443b-bcff-3637895dec66@redhat.com> Date: Thu, 23 Nov 2023 17:05:37 +0100 MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [RESEND PATCH v7 00/10] Small-sized THP for anonymous memory To: Matthew Wilcox , Ryan Roberts Cc: Andrew Morton , Yin Fengwei , Yu Zhao , Catalin Marinas , Anshuman Khandual , Yang Shi , "Huang, Ying" , Zi Yan , Luis Chamberlain , Itaru Kitayama , "Kirill A. Shutemov" , John Hubbard , David Rientjes , Vlastimil Babka , Hugh Dickins , Kefeng Wang , linux-mm@kvack.org, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org References: <20231122162950.3854897-1-ryan.roberts@arm.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-Rspamd-Queue-Id: 70ECC120019 X-Rspam-User: X-Stat-Signature: c5jopdhy7d3iygziqsnsj58ag6ph1zgw X-Rspamd-Server: rspam03 X-HE-Tag: 1700755543-628893 X-HE-Meta: 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 7edidiUX 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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 23.11.23 16:59, Matthew Wilcox wrote: > On Wed, Nov 22, 2023 at 04:29:40PM +0000, Ryan Roberts wrote: >> Note: I'm resending this at Andrew's suggestion due to having originally sent >> it during LPC. I'm hoping its in a position where the feedback is minor enough >> that I can rework in time for v6.8, but so far haven't had any. >> >> Hi All, >> >> This is v7 of a series to implement small-sized THP for anonymous memory >> (previously called "large anonymous folios"). The objective of this is to > > I'm still against small-sized THP. We've now got people asking whether > the THP counters should be updated when dealing with large folios that > are smaller than PMD sized. It's sowing confusion, and we should go > back to large anon folios as a name. > I disagree. https://lore.kernel.org/all/65dbdf2a-9281-a3c3-b7e3-a79c5b60b357@redhat.com/ -- Cheers, David / dhildenb