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 252EDD12663 for ; Tue, 5 Nov 2024 08:24:22 +0000 (UTC) Received: by kanga.kvack.org (Postfix) id 8C4886B0088; Tue, 5 Nov 2024 03:24:21 -0500 (EST) Received: by kanga.kvack.org (Postfix, from userid 40) id 871B36B008C; Tue, 5 Nov 2024 03:24:21 -0500 (EST) X-Delivered-To: int-list-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix, from userid 63042) id 712756B0092; Tue, 5 Nov 2024 03:24:21 -0500 (EST) X-Delivered-To: linux-mm@kvack.org Received: from relay.hostedemail.com (smtprelay0015.hostedemail.com [216.40.44.15]) by kanga.kvack.org (Postfix) with ESMTP id 53FE66B0088 for ; Tue, 5 Nov 2024 03:24:21 -0500 (EST) Received: from smtpin26.hostedemail.com (a10.router.float.18 [10.200.18.1]) by unirelay09.hostedemail.com (Postfix) with ESMTP id DFDA3810E3 for ; Tue, 5 Nov 2024 08:24:20 +0000 (UTC) X-FDA: 82751353272.26.5614152 Received: from us-smtp-delivery-124.mimecast.com (us-smtp-delivery-124.mimecast.com [170.10.133.124]) by imf29.hostedemail.com (Postfix) with ESMTP id 3929512000E for ; Tue, 5 Nov 2024 08:23:34 +0000 (UTC) Authentication-Results: imf29.hostedemail.com; dkim=pass header.d=redhat.com header.s=mimecast20190719 header.b=Ywj8lJAL; spf=pass (imf29.hostedemail.com: domain of david@redhat.com designates 170.10.133.124 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=1730794893; 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=dQUFO2XUW50DORC+SNwdJKqHhIbV1k4dr1/SWsv+/60=; b=MyvN4n7ifRHE7s1KUmIm5tX0du0kUDYJn77JuSerVe3PadAgVAMoRc/DA0TNephZ8ZSo8n hzojvwbBnHk92cn0vw1cQ09hj7TDnD7o7HwmFzRqRiy9s9YQccp4xOhfmt70RcNNAZ+irB cHWJo8RCUicp5FCnKariBxhOZpaM5Pw= ARC-Authentication-Results: i=1; imf29.hostedemail.com; dkim=pass header.d=redhat.com header.s=mimecast20190719 header.b=Ywj8lJAL; spf=pass (imf29.hostedemail.com: domain of david@redhat.com designates 170.10.133.124 as permitted sender) smtp.mailfrom=david@redhat.com; dmarc=pass (policy=none) header.from=redhat.com ARC-Seal: i=1; s=arc-20220608; d=hostedemail.com; t=1730794893; a=rsa-sha256; cv=none; b=5kcfgfZJKtAK6pLU4vm30oN1R8zObtsYDOiWZLC3TW4wwJkSr6fdjWNFWisDLt04+dj3hx 96w3KHFGT8sCj9l3rmmZgvqRR6YLaPgZ0YunZSzMoSnmWgY3X3zXcFMv7ZtiszAoN55FF0 ogqSgt7g8CdYpQK00yV7xmZ4jOZSaAY= DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1730795058; 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=dQUFO2XUW50DORC+SNwdJKqHhIbV1k4dr1/SWsv+/60=; b=Ywj8lJALTqfp+zgMWM2MNqEmFqYkfkTq5G7Q0kecMxHO4PViKarGjDTKhHoKkTDLKNRPZv K+1a+ZY9L67Ef9VhKXZlVcg2infYMKBIjVGc+ptrafePaVcdowYRuXagxqrwzn6WZvY/S2 ZapyizWpbbWAsvcZmG+Ah/ycAQfshgk= Received: from mail-wm1-f69.google.com (mail-wm1-f69.google.com [209.85.128.69]) by relay.mimecast.com with ESMTP with STARTTLS (version=TLSv1.3, cipher=TLS_AES_256_GCM_SHA384) id us-mta-456-NdVweQplNIyaDfy3nU2IwQ-1; Tue, 05 Nov 2024 03:24:16 -0500 X-MC-Unique: NdVweQplNIyaDfy3nU2IwQ-1 Received: by mail-wm1-f69.google.com with SMTP id 5b1f17b1804b1-4315dd8fe7fso43687965e9.3 for ; Tue, 05 Nov 2024 00:24:16 -0800 (PST) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1730795055; x=1731399855; h=content-transfer-encoding:in-reply-to:organization:autocrypt :content-language:references:cc:to:from:subject:user-agent :mime-version:date:message-id:x-gm-message-state:from:to:cc:subject :date:message-id:reply-to; bh=dQUFO2XUW50DORC+SNwdJKqHhIbV1k4dr1/SWsv+/60=; b=QbWlOnb3ZkIsd015zVq36o8nPypH4gyH+Zes4E8HOmXL7bS6eWQjyxO6wUPywaq8Wt wq3BCAC7b2xxIz7WBssk6gaQYaGNl3f2ywNjMARtK1aD6NQjs3HaTnixRoaX5vxAT52a Y3tIVlSdEnZluCwtb9EBOk6M5i/d3/Ea79ebgAWMTBjKzEznHa/QfCvEWpdcosU/QRuy fjztBeAsjLLN8W/vdm3xGjHqCa4x3aB/Uo6IZn+sJK/3cFndy0qxuxPRxxMIC87AbRCw yGatCx8aLZTYJIt7V/RmsmPTYBsXnen6k9Pouw6IQmVVAS1bSjW+2EaWwNMCFFj39Ch8 F7tQ== X-Forwarded-Encrypted: i=1; AJvYcCUGOQ73Ug4YkFvECuEue88SI509KMb+W839mt8vfINKNzATT6a6TsOS9MBqn+f5z5f1rymKbW5T0A==@kvack.org X-Gm-Message-State: AOJu0Yw/RgTgYME20rijMPQVXTUOP0eikXqkiwNQwMR2QfQKNi6umMH7 nxFVwGnEdAk08qKxr7WH0jEll4zxKHKWLhy1TWWs8oPlvCClXJfXxVDxcO47z/G9J7zCSaCauIb v/IVRflNMN/5ZYmnhm0JhJDNWiLzrvcSfsY91gO7IjVhDXbjT X-Received: by 2002:a05:600c:4f03:b0:431:4847:47c0 with SMTP id 5b1f17b1804b1-43283242c79mr150365665e9.7.1730795055508; Tue, 05 Nov 2024 00:24:15 -0800 (PST) X-Google-Smtp-Source: AGHT+IGAHD9ZvRUyVdWRYj1zjt8UvHSRmmBipeQuJqR1A99WMPUQHDDStfowGETKywBG2QXUpxJPGQ== X-Received: by 2002:a05:600c:4f03:b0:431:4847:47c0 with SMTP id 5b1f17b1804b1-43283242c79mr150365435e9.7.1730795055166; Tue, 05 Nov 2024 00:24:15 -0800 (PST) Received: from ?IPV6:2003:cb:c73b:db00:b0d7:66ca:e3e9:6528? (p200300cbc73bdb00b0d766cae3e96528.dip0.t-ipconnect.de. [2003:cb:c73b:db00:b0d7:66ca:e3e9:6528]) by smtp.gmail.com with ESMTPSA id 5b1f17b1804b1-4327d5ab305sm179407195e9.7.2024.11.05.00.24.13 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Tue, 05 Nov 2024 00:24:14 -0800 (PST) Message-ID: <91c683e7-58dc-4518-94bb-884b11683895@redhat.com> Date: Tue, 5 Nov 2024 09:24:12 +0100 MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [PATCH v2] mm: count zeromap read and set for swapout and swapin From: David Hildenbrand To: Andrew Morton Cc: Barry Song <21cnbao@gmail.com>, Usama Arif , linux-mm@kvack.org, linux-kernel@vger.kernel.org, Barry Song , Chengming Zhou , Yosry Ahmed , Nhat Pham , Johannes Weiner , Hugh Dickins , Matthew Wilcox , Shakeel Butt , Andi Kleen , Baolin Wang , Chris Li , "Huang, Ying" , Kairui Song , Ryan Roberts References: <20241102101240.35072-1-21cnbao@gmail.com> <6c14ab2c-7917-489b-b51e-401d208067f3@gmail.com> <3f943f72-59d6-4124-96b2-e0bb8d7a5ebd@redhat.com> <20241104194024.0284288a28a71a70a3eab9b0@linux-foundation.org> <942f8355-4b23-4fd9-b00e-1121552d89ee@redhat.com> 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: <942f8355-4b23-4fd9-b00e-1121552d89ee@redhat.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-Server: rspam09 X-Rspamd-Queue-Id: 3929512000E X-Stat-Signature: hfb7z6wq9e4pnd6c7n8dxws9gcakwtqj X-Rspam-User: X-HE-Tag: 1730795014-560159 X-HE-Meta: U2FsdGVkX180XElM7w+U0w4yKG+4J+nwTbYTKyi3pXsjHXUzd8ES3Icsj61q8j4Z999KZVD0XJ2SACm2GvLi15b5zfFEVZjCPhlN2Vqa+45TM8UUA5bRyG3KWd6ABQDJEGEeLHMRxKbgUeaBCvrOWHudbe3SXVImLK02Cquk2K3ER5EhQ6nUz4wXXrjL5+MLeVkmYi9kjQyqrfufzubjUSMhLo3yPj1p8OUTttvbJ2SnWjV0burO8Ecpc30lfJTrRVZz0ecN+97WHWq8bUkZQyNTdP1FaUWc/0y+F/ZekyqGrNLqbr7MmUuReOT0jrtjRAWSAzXVDKphF7cB9OpKOPB54AhD6ePPFcsHi6L2Cyiow1xh1ZAJvfCi6c25oDYbx4yqiXZT/U3CqyF30z6m5sqJWIq+oLqBiN6J2fgPedSxRVmd28QE3dOSO3FZPvAyqk8tWCsb87Z37mujqaYSaRTaL9//AROAPo3sKZf/w3wqSORBHLaN6Sv+pOBJSclCvdvowMWZdte/uFRLKFUQW+P+XY/+Z431hnAyIhvr6gSGcT7fpnlBzOYnPxXiU8CFjRKbQyRLmoPdHrMJCUFDwROnSIWMExdKlUasZVX3eSg6p7Lnwo8njHYQ84pDqZF/Si5wfuaaSTLji32/yoFXXyPsRimsrqZ0ie2BsQCUX0aTVVGqPkakeqM+ud2KBsaEKLONRSbqlreRHm82yhuu5S5aTNe89GItDw/am68RQQdcmXJqr5tj0RY7QZo52EeP4KpuMwZkoLX857XM7DTRm0+e/cnMfDM4V58sV9S2UgDrXyXSU8ld8krXcfuKIVoJ32ABkC71wm3M96LZ4wMrznWxr5twV+VjYENAgxVEPl6zyktXxSq4dzyYuU1IgUVy1fhXmNfa6OkEcUrMXLAuWrkl0lNmYhVSOKOzzqRDrLIao6HAVboukDZ1h+m5vIMhzOsVV+hWM4iYbzt3eur NAvHJWHe 9Uk00UkZEpP/Qq2ooXlwdObaSEZAaUo6XDynWvqbV3pF1Mlwu5II9EtGbex8U9vqznBeaUQgnDBKQ7jC/LVayDheVjUXtEBYJqkGzBJ/htLbb+0HE1NrsZz4eNqLIQ7JC5/czkuqpo7UdvrF3hgWQHFaGA+x2ZTePqdO5onRkd5M9scIJofQ3OyXiqxYXE669FwZUyZRtzN1qvJbuqdap/bc/JF6MkdB+ykPuT1eo47G1FvTMRNyCemXjm5GYuychElOxqO53L3A7BGVymJO2S8XLyjf+2XqA2sJbE8JKyuwj66s+z9+7uc4NgkGkBYvXEe1kbi3tCIFGtyUYe+E3VemoscQlC9yk7US9FvacqW2tu82r02av9bMH+fqyf8lWEdIlIgjovwN6cHbI557eaOt5AWGrIw3ZqxWeBv24Zl19KZc= 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 05.11.24 09:23, David Hildenbrand wrote: > On 05.11.24 04:40, Andrew Morton wrote: >> On Mon, 4 Nov 2024 13:32:55 +0100 David Hildenbrand wrote: >> >>>> As mentioned above, this isn't about fixing a bug; it's simply to ensure >>>> that swap-related metrics don't disappear. >>> >>> Documentation/process/submitting-patches.rst: >>> >>> "A Fixes: tag indicates that the patch fixes an issue in a previous >>> commit. It is used to make it easy to determine where a bug originated, >>> which can help review a bug fix." >>> >>> If there is no BUG, I'm afraid you are abusing that tag. >> >> I think the abuse is reasonable. We have no Should-be-included-with:. > > A "Belongs-to:" might make sense, for this kind of stuff that is still > only in an RFC. s/RFC/RC/ -- Cheers, David / dhildenb