From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from kanga.kvack.org (kanga.kvack.org [205.233.56.17]) by smtp.lore.kernel.org (Postfix) with ESMTP id 094AEC61D97 for ; Fri, 24 Nov 2023 19:37:01 +0000 (UTC) Received: by kanga.kvack.org (Postfix) id 639998D00A7; Fri, 24 Nov 2023 14:37:00 -0500 (EST) Received: by kanga.kvack.org (Postfix, from userid 40) id 5C2628D0096; Fri, 24 Nov 2023 14:37:00 -0500 (EST) X-Delivered-To: int-list-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix, from userid 63042) id 3EFC48D00A7; Fri, 24 Nov 2023 14:37:00 -0500 (EST) X-Delivered-To: linux-mm@kvack.org Received: from relay.hostedemail.com (smtprelay0010.hostedemail.com [216.40.44.10]) by kanga.kvack.org (Postfix) with ESMTP id 299C48D0096 for ; Fri, 24 Nov 2023 14:37:00 -0500 (EST) Received: from smtpin18.hostedemail.com (a10.router.float.18 [10.200.18.1]) by unirelay09.hostedemail.com (Postfix) with ESMTP id E047A80295 for ; Fri, 24 Nov 2023 19:36:59 +0000 (UTC) X-FDA: 81493855758.18.C657E95 Received: from us-smtp-delivery-124.mimecast.com (us-smtp-delivery-124.mimecast.com [170.10.129.124]) by imf17.hostedemail.com (Postfix) with ESMTP id 9F0B640015 for ; Fri, 24 Nov 2023 19:36:57 +0000 (UTC) Authentication-Results: imf17.hostedemail.com; dkim=pass header.d=redhat.com header.s=mimecast20190719 header.b=E7HQOsiC; spf=pass (imf17.hostedemail.com: domain of david@redhat.com designates 170.10.129.124 as permitted sender) smtp.mailfrom=david@redhat.com; dmarc=pass (policy=none) header.from=redhat.com ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=hostedemail.com; s=arc-20220608; t=1700854617; h=from:from:sender:reply-to:subject:subject:date:date: message-id:message-id:to:to:cc:cc:mime-version:mime-version: content-type:content-type: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references:dkim-signature; bh=yhz7X34rtir/QI6I24qRvGRWw3KId1ROlCi2joxVTvo=; b=Wcl4IOR6I9ijcrM++6GXyVviAWLp5dyGrH5Vb2vdwgTY+pnkvB6I6bjXkyJ7guMv/HfDik yBIA3LJVpHbkscs1gq00TdY1WEkqfpUNRgb1vgaaVSW7pkQCI7b5Ie9GYd7qjj2BeDrXlH BxMsI764jg4o3r6J+Rz119bhZGtD8j0= ARC-Seal: i=1; s=arc-20220608; d=hostedemail.com; t=1700854617; a=rsa-sha256; cv=none; b=NGfrsgAp7/AUd+215McACtf2htcCyCeWS1TdKr3gDxeWk1l659jIv1puE2jZRFHN0CMI/F 3YtfpSgkz0Eg3hcYEnvfyaDXwyW3LDHb2B5FGiY0uIwtmlt97pqMR5di1Fv7ggeQesKmMs iSvgvMQh4G4vou1jn0ZmfQaOx0Tabpg= ARC-Authentication-Results: i=1; imf17.hostedemail.com; dkim=pass header.d=redhat.com header.s=mimecast20190719 header.b=E7HQOsiC; spf=pass (imf17.hostedemail.com: domain of david@redhat.com designates 170.10.129.124 as permitted sender) smtp.mailfrom=david@redhat.com; dmarc=pass (policy=none) header.from=redhat.com DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1700854616; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references:autocrypt:autocrypt; bh=yhz7X34rtir/QI6I24qRvGRWw3KId1ROlCi2joxVTvo=; b=E7HQOsiCfixZLmXewFJGUrBeD3gHW2OSjAQGy5dFD0uNOYaWqZ9EKorLT8S9PS8b0xyI8x ijTuh86cUwzjYnR3z/tSYSdK9zK8w0tgWdpVBetHLcnfhFq+1OmxRK+KwZCRByAI6NleNR ed1CVG3iPg4JDmPNjOTJ8KMALfH0fgc= Received: from mail-wr1-f72.google.com (mail-wr1-f72.google.com [209.85.221.72]) by relay.mimecast.com with ESMTP with STARTTLS (version=TLSv1.3, cipher=TLS_AES_256_GCM_SHA384) id us-mta-179-uSphPUrMPP2t8Lm3sCEy4A-1; Fri, 24 Nov 2023 14:36:55 -0500 X-MC-Unique: uSphPUrMPP2t8Lm3sCEy4A-1 Received: by mail-wr1-f72.google.com with SMTP id ffacd0b85a97d-332e344cb3bso1097281f8f.3 for ; Fri, 24 Nov 2023 11:36:55 -0800 (PST) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1700854614; x=1701459414; h=content-transfer-encoding:in-reply-to:organization:autocrypt:from :references:cc:to:content-language:subject:user-agent:mime-version :date:message-id:x-gm-message-state:from:to:cc:subject:date :message-id:reply-to; bh=yhz7X34rtir/QI6I24qRvGRWw3KId1ROlCi2joxVTvo=; b=QrihRZrMGXgMCudlRkVKOlzgoEE3aEo6ymM4i0ITGpu05sNUJ5vVb5xVhJ0DB5Vyux UvnbX/BX3L+Zt7ZXR716LBMygf/F+m4t+TfRe9OMJxsmyhQFLnCyjRZ5XbbdVP8mPrQJ 3zuAnWn/cTe6DmC2+Ma+0yRFmpp3RfSy9HLUzJGAnzCB0B8nXt+0UjqO+8ihZzAgz6K5 ncPw2vTc8atnVIyY/EANhhyrZYLHqgjSu8mYgj8cr45l+F0ZzUHaL7xjmPuQHuecbQLi KiKOODUCVLWcAAQYFL8u4KK8B26RIjv420P4xGmbacoU6bhaHs3rKQD//ORmJzDCQR94 qqDQ== X-Gm-Message-State: AOJu0YyPUaKX5hMBR/O5rSjgSfGYX3Lh3Ppa1xff14hOWAu8wmuq3m3s XdfJW5R6BNVjdB1ax6WKA9JFO4DcE1qHYlLDI3n2bW8DY7pR4r3tfMOqvJlVRw9yoC2flo9V+Bn cGsrt0iHbYU0= X-Received: by 2002:a05:6000:b8b:b0:332:c699:f7b0 with SMTP id dl11-20020a0560000b8b00b00332c699f7b0mr3529173wrb.31.1700854614556; Fri, 24 Nov 2023 11:36:54 -0800 (PST) X-Google-Smtp-Source: AGHT+IEtWiibCD3+vrVp4mDgf1cyQncOLRSHqFl89/CuHG7jW1X5In5uJNqN36gsj25aPlrpopXgNQ== X-Received: by 2002:a05:6000:b8b:b0:332:c699:f7b0 with SMTP id dl11-20020a0560000b8b00b00332c699f7b0mr3529146wrb.31.1700854614204; Fri, 24 Nov 2023 11:36:54 -0800 (PST) Received: from ?IPV6:2003:cb:c721:a000:7426:f6b4:82a3:c6ab? (p200300cbc721a0007426f6b482a3c6ab.dip0.t-ipconnect.de. [2003:cb:c721:a000:7426:f6b4:82a3:c6ab]) by smtp.gmail.com with ESMTPSA id r5-20020a5d4985000000b00332d3b89561sm1764366wrq.97.2023.11.24.11.36.52 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Fri, 24 Nov 2023 11:36:53 -0800 (PST) Message-ID: <45466b05-d620-41e5-8a2b-05c420b8fa7b@redhat.com> Date: Fri, 24 Nov 2023 20:36:52 +0100 MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [PATCH RFC v2 06/27] mm: page_alloc: Allow an arch to hook early into free_pages_prepare() To: Alexandru Elisei , catalin.marinas@arm.com, will@kernel.org, oliver.upton@linux.dev, maz@kernel.org, james.morse@arm.com, suzuki.poulose@arm.com, yuzenghui@huawei.com, arnd@arndb.de, akpm@linux-foundation.org, mingo@redhat.com, peterz@infradead.org, juri.lelli@redhat.com, vincent.guittot@linaro.org, dietmar.eggemann@arm.com, rostedt@goodmis.org, bsegall@google.com, mgorman@suse.de, bristot@redhat.com, vschneid@redhat.com, mhiramat@kernel.org, rppt@kernel.org, hughd@google.com Cc: pcc@google.com, steven.price@arm.com, anshuman.khandual@arm.com, vincenzo.frascino@arm.com, eugenis@google.com, kcc@google.com, hyesoo.yu@samsung.com, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, kvmarm@lists.linux.dev, linux-fsdevel@vger.kernel.org, linux-arch@vger.kernel.org, linux-mm@kvack.org, linux-trace-kernel@vger.kernel.org References: <20231119165721.9849-1-alexandru.elisei@arm.com> <20231119165721.9849-7-alexandru.elisei@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: <20231119165721.9849-7-alexandru.elisei@arm.com> 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: 9F0B640015 X-Rspam-User: X-Stat-Signature: c7so4oydbem6knhw9bd8mb4whfr6ydut X-Rspamd-Server: rspam03 X-HE-Tag: 1700854617-491554 X-HE-Meta: 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 66zO0D/8 ybGGyDThkpDX1qkcYnkTOolpcyedd3Oyr7FjhNRDzC8XItCLtf7fP3v2CZDdhA0xX+O4ctKUJOmC4G2mIVJ4o3EQynkzDJhjSXntev8hOvZA6Iwn99iXjZ5iWBu6A+Sp8ptQ5e3xPFFp7xufFRBNq3JJmMxZSLq23FdDemMRCk8ADQhRCClOijkZSr3oOWCTkuA43ewpwc4DunUDbJsWesRyDHCnec44tuLdf3v211hzjYj0uRcZpjUL7WX9CVAkua9VolPi10qhb1RX1Wqn7jWFOUOcbTqdLknaZ8tp9HmNMBRdSajyKx0hSwDmDDRKc6dZFh5j7TQqefNqxvuG0Kn3+4wf5zaaZHzCA2VwdIf4flpvjEPKW6jWs6ykxHvL4ndPXEn560+yQswtvb7KAn7g7GrXWTv0xnHrqL+y/KVaLdxQuOe0+jJH6XmoaECOD6EehxyoG0gRhliiIfKwkwfJ29Q== X-Bogosity: Ham, tests=bogofilter, spamicity=0.000001, 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 19.11.23 17:57, Alexandru Elisei wrote: > Add arch_free_pages_prepare() hook that is called before that page flags > are cleared. This will be used by arm64 when explicit management of tag > storage pages is enabled. Can you elaborate a bit what exactly will be done by that code with that information? -- Cheers, David / dhildenb