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 76808C0219B for ; Tue, 11 Feb 2025 15:10:12 +0000 (UTC) Received: by kanga.kvack.org (Postfix) id B6F4A6B0083; Tue, 11 Feb 2025 10:10:11 -0500 (EST) Received: by kanga.kvack.org (Postfix, from userid 40) id B1F99280001; Tue, 11 Feb 2025 10:10:11 -0500 (EST) X-Delivered-To: int-list-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix, from userid 63042) id 9C1A46B0089; Tue, 11 Feb 2025 10:10:11 -0500 (EST) X-Delivered-To: linux-mm@kvack.org Received: from relay.hostedemail.com (smtprelay0012.hostedemail.com [216.40.44.12]) by kanga.kvack.org (Postfix) with ESMTP id 83A2E6B0083 for ; Tue, 11 Feb 2025 10:10:11 -0500 (EST) Received: from smtpin28.hostedemail.com (a10.router.float.18 [10.200.18.1]) by unirelay02.hostedemail.com (Postfix) with ESMTP id DCE88120247 for ; Tue, 11 Feb 2025 15:10:09 +0000 (UTC) X-FDA: 83107999338.28.DC27C3C Received: from us-smtp-delivery-124.mimecast.com (us-smtp-delivery-124.mimecast.com [170.10.133.124]) by imf11.hostedemail.com (Postfix) with ESMTP id 64BDE40014 for ; Tue, 11 Feb 2025 15:10:07 +0000 (UTC) Authentication-Results: imf11.hostedemail.com; dkim=pass header.d=redhat.com header.s=mimecast20190719 header.b=a2jcS3DZ; spf=pass (imf11.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=1739286607; 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=YaIPhTTmrklH/04lzj/qTEZwP1yJfzcjlD2dlCCUNKM=; b=1BCPrnDDFl2h9qN3hcdmtwLRCI3nZci0GctC1wYghnt7JGT8hik5F+hmQLWmfWiSF86DBZ 0inCWkflG4c4iC9Wk+aYLY47YifQHGuiks77F5FWfXKL8f4QufR36qx1BZskAHNb/Fy9iX h6W/WEPJ2bQ2HuuLllKW85eEnq9rsQY= ARC-Authentication-Results: i=1; imf11.hostedemail.com; dkim=pass header.d=redhat.com header.s=mimecast20190719 header.b=a2jcS3DZ; spf=pass (imf11.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=1739286607; a=rsa-sha256; cv=none; b=VWheljxIa7244Jv/QmTa6FKD74AHP3MmMAsQ0cwqDzPuFMw+DQUsZ3bWF92/1WE4mkouRd qUM8Kr8HbKhU8lI5aUg7E6NMiyd/gpvlKMQGR/TwfKwIcsKKwLjDPjxJNZep9xapaOfASj cwkB5NdCbXANfrBPUgYwCTsMAHa8rOo= DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1739286606; 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=YaIPhTTmrklH/04lzj/qTEZwP1yJfzcjlD2dlCCUNKM=; b=a2jcS3DZmwiIB3ON/BW89BYP8M37D+v1u6tiuIXsQp9WM1esLYCSuxCqv4fX7HD9nXIcU1 /8i1+VECnE/nsJ/yQVGqCmWU1+XtC/6OlYyP8bWb4H9Ef7dpEHjv7QPIGtl174amhpWhIU LCueXnCfFSjwqMMX15q2oHJrPx8nHTk= 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-658-Qq-VIt0aNOCVeyQAr0P02g-1; Tue, 11 Feb 2025 10:10:05 -0500 X-MC-Unique: Qq-VIt0aNOCVeyQAr0P02g-1 X-Mimecast-MFC-AGG-ID: Qq-VIt0aNOCVeyQAr0P02g Received: by mail-wm1-f69.google.com with SMTP id 5b1f17b1804b1-43945f32e2dso16768535e9.2 for ; Tue, 11 Feb 2025 07:10:05 -0800 (PST) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1739286604; x=1739891404; h=content-transfer-encoding:in-reply-to:organization:autocrypt :content-language:from:references:cc:to:subject:user-agent :mime-version:date:message-id:x-gm-message-state:from:to:cc:subject :date:message-id:reply-to; bh=YaIPhTTmrklH/04lzj/qTEZwP1yJfzcjlD2dlCCUNKM=; b=A5ZksBkKDZ+wAuhCkBVD9avBVIynME6yNig5bzvzEY2s1KORGJN6G1JT5Eg9yUyCtc wWBGGrNbPWbhpAV97BpZTzucO7XUudYlBWLSpiPDblv8zjeetN8il/O0STYSbOLGoOZZ vSKsuvRd/AJgvHCRo7dgb4bLRmpRxTJlSpXOZuNdBCMRqKtg9Gm6fK4OOPF8/fYjjwow 5PKPorsm5XMy3I8mwiXDW0K+v9kXgAUgWYYv+cqfLj5EIcVDw0fPaT87NqQLaa/ArWQ0 GYla+F0XGooYbZFDPeCCFSOODW6JKhgfV0vUclbwTStT57xrSwWSddrVitt2T8wIyS0R Ctig== X-Forwarded-Encrypted: i=1; AJvYcCVtMBq+wLTv8KgqU/AaAm5oP8y/SSKsZO9UGdUEi4sKbbe2ZMxzEscmFndsdKNGWqRfCppYLphZ6w==@kvack.org X-Gm-Message-State: AOJu0Yxj7j+Y9rUh7XMM7gIu64HxzAbAV6l5BCscWgI21eidNl5EKPKr duH5PAJ/XyVl18s+noQXC53+XFRxu18N17X7ztAvdixNiwaqupsXameqCQljEG1in2qHfW/SCG3 h+NwJJTui1zIVpDe6sqpjX2jYaIg8ccW0JlKT91Gsg9eGDcTy X-Gm-Gg: ASbGncu7vipUwin47ME63Fyt52M0DP2ztZRT9Tjob0Mjg2/a0vNIInarFaXc8A6b79D yiE8dVEZ4NDKP7b4c9w5xYNji92I+EuLnLyY+qD+GhTkWgV6nGmPXTzYvvd72b29ewUUpzaLYpl fXKtvkxxVkiAZqdOkeRup/YKC/jR9iQEfTzW067xwPKygsPV+GomfMQZ54dADtJvEDjZ1mMkLtn GFm6D7/1vnS80+SW9Oy40yBc75P3XOgtjeNq8qxYXD8th9tLLguwClla7MmjFoQEvBq6HH7FB9V u38J8kLsxOjdNagCCO7fbBt6gBJ+OXSC/q+lNOJnWDYujg== X-Received: by 2002:a05:600c:1f0f:b0:439:553c:2a34 with SMTP id 5b1f17b1804b1-439553c2b7dmr27035355e9.4.1739286604224; Tue, 11 Feb 2025 07:10:04 -0800 (PST) X-Google-Smtp-Source: AGHT+IF3vHRdsPYmIcwDAftHc/ANy5L0ScO29Pz99rNLpUIXl+J91GxugIdJBmcLTGbuxmSRiL8qvA== X-Received: by 2002:a05:600c:1f0f:b0:439:553c:2a34 with SMTP id 5b1f17b1804b1-439553c2b7dmr27034745e9.4.1739286603870; Tue, 11 Feb 2025 07:10:03 -0800 (PST) Received: from ?IPV6:2a01:599:929:885b:12c0:a824:1abd:41c4? ([2a01:599:929:885b:12c0:a824:1abd:41c4]) by smtp.gmail.com with ESMTPSA id ffacd0b85a97d-38dc3a10fffsm14215767f8f.12.2025.02.11.07.10.01 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Tue, 11 Feb 2025 07:10:03 -0800 (PST) Message-ID: <829c4d81-7693-4f41-b518-aafd6dcb4984@redhat.com> Date: Tue, 11 Feb 2025 16:09:58 +0100 MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [RFC 3/4] mm: page_table_check: use new iteration API To: Luiz Capitulino , linux-kernel@vger.kernel.org, linux-mm@kvack.org, yuzhao@google.com Cc: akpm@linux-foundation.org, hannes@cmpxchg.org, muchun.song@linux.dev, lcapitulino@gmail.com References: <1a661d3c94890df06dc82583f883ee5cc6346d75.1737754625.git.luizcap@redhat.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: <1a661d3c94890df06dc82583f883ee5cc6346d75.1737754625.git.luizcap@redhat.com> X-Mimecast-Spam-Score: 0 X-Mimecast-MFC-PROC-ID: 1uXjjDGmLPUyWdY02GbXRRtuADhHzpq0L5HHKTyJqho_1739286604 X-Mimecast-Originator: redhat.com Content-Language: en-US Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit X-Rspam-User: X-Rspamd-Server: rspam11 X-Rspamd-Queue-Id: 64BDE40014 X-Stat-Signature: 7hktae6aiaaz89rtfarao5myw54d88bp X-HE-Tag: 1739286607-678879 X-HE-Meta: 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 gm/Zjjf4 AuNNjVJcgL3LjSQELxEyGi+MBgCSL+DmqJutv8CK8TJT1kY41ILHwOmwXwl/CcTPUqcOPPLaVvK13X5qoPLJHqbq+/u+9eVEYyRsY4gnkrqT6smG+2dVgld7A5dpfh/rNJlzMQvF4vrMQPuhmJcwh6SrFjO/9bKN3ozgTaXuYiWhcj67IlDviJeeEsutvpDQL7o7uIFi6CoZnqHbDtIhQL5b+9lKbNCR1XfroSNBP5QU+WQpJy808ya1u7mVBI6ixs7aXuiGWKKshJ35tE4D3Er8KGtjaLzfr+dsAY3nHA6tcMJM+/dQTFXpxZTsX9XnofwTmkJcmauTOV+I/Gb/5O+I/4nT66Ie6IQ2GV1Aixyu79jh0Ng2c1Q91lGGXbOjdGBTF+4zrSQdaRGJwcXC3JaCA2+FwF3WV9cH08gFXwkRV91trIjWB4vcnmKIbF2iImkBz4v1bSmUyt0SRvliGvmjuTKuazT3RZeGY5U4VjscOghQ= X-Bogosity: Ham, tests=bogofilter, spamicity=0.000002, 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 24.01.25 22:37, Luiz Capitulino wrote: > The page_ext_next() function assumes that page extension objects for a > page order allocation always reside in the same memory section, which > may not be true and could lead to crashes. Use the page_ext_iter API > instead. > > Fixes: e98337d11bbd ("mm/contig_alloc: support __GFP_COMP") > Signed-off-by: Luiz Capitulino > --- The usage of the new API here looks straight forward here. The page_owner one is a bit more involved :) -- Cheers, David / dhildenb