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b=j2p0Z7imKkOx58SPCs+B0b+lPNx8j+8mItLEBK0ZZJVQMzsF6MpcAfjdtrUMCn+tl IXUp+JiYAwJcxDjo0JxFUg3rHc9shz6F9AHFyJvjsx6rlMe3mkfQoCw6B9erOZX8vI hlAPlQUaGmZcUPSWNQQorXbHanYHUcHyRsroaQiX8BhKmyCAR54+HjI+3UDk67WMoC 6CdxAolg4NqZv7u2tsA7esv4eAeiiZU/Pdc+b/oTKGW+t4H91tqiW11UnKAFdINvUq bhZj3TPvSioqeBqp7ISxkOzloL25CTdqAiBAf4aHFuhdco7os8BVx1zNB6hcEo1sM6 al/EgJpQZdUuw== Message-ID: <949cd60d-fed6-44f9-bdf2-59533ab61836@kernel.org> Date: Mon, 1 Jun 2026 18:00:01 +0200 MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: Process (was Re: [PATCH mm-hotfixes-unstable v18 00/14] khugepaged: add mTHP) collapse support To: Lorenzo Stoakes Cc: "Vlastimil Babka (SUSE)" , Nico Pache , akpm@linux-foundation.org, linux-kernel@vger.kernel.org, linux-mm@kvack.org, liam@infradead.org, mhocko@suse.com, rppt@kernel.org, vbabka@suse.cz, willy@infradead.org References: <20260522150009.121603-1-npache@redhat.com> From: "David Hildenbrand (Arm)" Content-Language: en-US Autocrypt: addr=david@kernel.org; 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 B3JfpUqcWwE7vUaYrHG1nw54pLUoPG6sAA7Mehl3nd4pZUALHwARAQABzS5EYXZpZCBIaWxk ZW5icmFuZCAoQ3VycmVudCkgPGRhdmlkQGtlcm5lbC5vcmc+wsGQBBMBCAA6AhsDBQkmWAik AgsJBBUKCQgCFgICHgUCF4AWIQQb2cqtc1xMOkYN/MpN3hD3AP+DWgUCaYJt/AIZAQAKCRBN 3hD3AP+DWriiD/9BLGEKG+N8L2AXhikJg6YmXom9ytRwPqDgpHpVg2xdhopoWdMRXjzOrIKD g4LSnFaKneQD0hZhoArEeamG5tyo32xoRsPwkbpIzL0OKSZ8G6mVbFGpjmyDLQCAxteXCLXz ZI0VbsuJKelYnKcXWOIndOrNRvE5eoOfTt2XfBnAapxMYY2IsV+qaUXlO63GgfIOg8RBaj7x 3NxkI3rV0SHhI4GU9K6jCvGghxeS1QX6L/XI9mfAYaIwGy5B68kF26piAVYv/QZDEVIpo3t7 /fjSpxKT8plJH6rhhR0epy8dWRHk3qT5tk2P85twasdloWtkMZ7FsCJRKWscm1BLpsDn6EQ4 jeMHECiY9kGKKi8dQpv3FRyo2QApZ49NNDbwcR0ZndK0XFo15iH708H5Qja/8TuXCwnPWAcJ DQoNIDFyaxe26Rx3ZwUkRALa3iPcVjE0//TrQ4KnFf+lMBSrS33xDDBfevW9+Dk6IISmDH1R HFq2jpkN+FX/PE8eVhV68B2DsAPZ5rUwyCKUXPTJ/irrCCmAAb5Jpv11S7hUSpqtM/6oVESC 3z/7CzrVtRODzLtNgV4r5EI+wAv/3PgJLlMwgJM90Fb3CB2IgbxhjvmB1WNdvXACVydx55V7 LPPKodSTF29rlnQAf9HLgCphuuSrrPn5VQDaYZl4N/7zc2wcWM7BTQRVy5+RARAA59fefSDR 9nMGCb9LbMX+TFAoIQo/wgP5XPyzLYakO+94GrgfZjfhdaxPXMsl2+o8jhp/hlIzG56taNdt VZtPp3ih1AgbR8rHgXw1xwOpuAd5lE1qNd54ndHuADO9a9A0vPimIes78Hi1/yy+ZEEvRkHk /kDa6F3AtTc1m4rbbOk2fiKzzsE9YXweFjQvl9p+AMw6qd/iC4lUk9g0+FQXNdRs+o4o6Qvy iOQJfGQ4UcBuOy1IrkJrd8qq5jet1fcM2j4QvsW8CLDWZS1L7kZ5gT5EycMKxUWb8LuRjxzZ 3QY1aQH2kkzn6acigU3HLtgFyV1gBNV44ehjgvJpRY2cC8VhanTx0dZ9mj1YKIky5N+C0f21 zvntBqcxV0+3p8MrxRRcgEtDZNav+xAoT3G0W4SahAaUTWXpsZoOecwtxi74CyneQNPTDjNg azHmvpdBVEfj7k3p4dmJp5i0U66Onmf6mMFpArvBRSMOKU9DlAzMi4IvhiNWjKVaIE2Se9BY FdKVAJaZq85P2y20ZBd08ILnKcj7XKZkLU5FkoA0udEBvQ0f9QLNyyy3DZMCQWcwRuj1m73D sq8DEFBdZ5eEkj1dCyx+t/ga6x2rHyc8Sl86oK1tvAkwBNsfKou3v+jP/l14a7DGBvrmlYjO 59o3t6inu6H7pt7OL6u6BQj7DoMAEQEAAcLBfAQYAQgAJgIbDBYhBBvZyq1zXEw6Rg38yk3e EPcA/4NaBQJonNqrBQkmWAihAAoJEE3eEPcA/4NaKtMQALAJ8PzprBEXbXcEXwDKQu+P/vts IfUb1UNMfMV76BicGa5NCZnJNQASDP/+bFg6O3gx5NbhHHPeaWz/VxlOmYHokHodOvtL0WCC 8A5PEP8tOk6029Z+J+xUcMrJClNVFpzVvOpb1lCbhjwAV465Hy+NUSbbUiRxdzNQtLtgZzOV Zw7jxUCs4UUZLQTCuBpFgb15bBxYZ/BL9MbzxPxvfUQIPbnzQMcqtpUs21CMK2PdfCh5c4gS sDci6D5/ZIBw94UQWmGpM/O1ilGXde2ZzzGYl64glmccD8e87OnEgKnH3FbnJnT4iJchtSvx yJNi1+t0+qDti4m88+/9IuPqCKb6Stl+s2dnLtJNrjXBGJtsQG/sRpqsJz5x1/2nPJSRMsx9 5YfqbdrJSOFXDzZ8/r82HgQEtUvlSXNaXCa95ez0UkOG7+bDm2b3s0XahBQeLVCH0mw3RAQg r7xDAYKIrAwfHHmMTnBQDPJwVqxJjVNr7yBic4yfzVWGCGNE4DnOW0vcIeoyhy9vnIa3w1uZ 3iyY2Nsd7JxfKu1PRhCGwXzRw5TlfEsoRI7V9A8isUCoqE2Dzh3FvYHVeX4Us+bRL/oqareJ CIFqgYMyvHj7Q06kTKmauOe4Nf0l0qEkIuIzfoLJ3qr5UyXc2hLtWyT9Ir+lYlX9efqh7mOY qIws/H2t In-Reply-To: Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit X-Rspamd-Queue-Id: A1A9040006 X-Stat-Signature: mmdo9gw5887kyypjqskueb1wxm4e6ph1 X-Rspam-User: X-Rspamd-Server: rspam12 X-HE-Tag: 1780329606-429793 X-HE-Meta: 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 71gE1ADj EF3o60pNiPX5CgDNghcLwQGVZXI8N4dAGu0nArM41MOioPRS2dCCdvBI44+R54GmqbbPbgJ8TKX1OeRvdZ2dCbZMV3pKgUin635MW1aid8MBdcDwBIHR6Wg41FRhzIrv1hw/FxsHUpYhuabg4OcAaSteoHzjkh7Wn9PNm7qtsoBeUxsFfVRLMVNEUJkxVaWvx7ZbyLjKPF4h9WnQHwuuw+1QXM9BQJ9O/pxu9dm49eOyX6EhZzftr3ap9MftAuFhQB4du Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: List-Subscribe: List-Unsubscribe: On 6/1/26 17:47, Lorenzo Stoakes wrote: > On Mon, Jun 01, 2026 at 05:43:11PM +0200, David Hildenbrand (Arm) wrote: >>> >>> I feel like it could get hairy pretty quick, but I guess the key thing here is - >>> maintainers resolve merge conflicts. >>> >>> As long as we have a specific _solid_ basis for work. >>> >>> I think actually this speaks to it being sensible for each submaintainer with a >>> separate tree to maintain their own repos rather than branches. >>> >>> We need to determine what this baseline would be for each tree though. >>> >>> So perhaps each submaintainer tree has for-mm-next that's the stable branch from >>> mm-next + any stabliised local changes. >>> >>> And each week this gets merged to mm-next, and everybody resets to mm-next >>> stable branch? >> >> I think it gets way more complicated than that once we involve hotfix branches, >> and dependencies between hotfixes, topic branches and all of that. And in >> particular, if we have to drop a topic branch in some circumstances. >> >> My first step will be to understand "how would it look like without >> submaintainers" when only having topic branches. >> >> Then, add a complexity level on top with subcomonent maintainers :) >> >> I'll probably schedule a session in 2 weeks. >> >> Whom to invite? > > I guess can look at the list of current, active, involved submaintainers? > > Can also send a general mail to linux-mm about it too? Yes, let me do that. -- Cheers, David