From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from kanga.kvack.org (kanga.kvack.org [205.233.56.17]) by smtp.subspace.kernel.org (Postfix) with ESMTP id 731D6606A326 for ; Sat, 7 Nov 2026 18:18:09 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.a=rsa-sha256 header.s=k20260515 header.b=Ia/97teJ Received: by kanga.kvack.org (Postfix) id 673126B05BC; Sat, 7 Nov 2026 13:18:08 -0500 (EST) Received: by kanga.kvack.org (Postfix, from userid 40) id 623DE6B05BD; Sat, 7 Nov 2026 13:18:08 -0500 (EST) X-Delivered-To: int-list-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix, from userid 63042) id 4C5D96B05BE; Sat, 7 Nov 2026 13:18:08 -0500 (EST) X-Delivered-To: linux-mm@kvack.org Received: from relay.hostedemail.com (smtprelay0017.hostedemail.com [216.40.44.17]) by kanga.kvack.org (Postfix) with ESMTP id 16D226B05BC for ; Sat, 7 Nov 2026 13:18:08 -0500 (EST) Received: from smtpin26.hostedemail.com (lb01a-stub [10.200.18.249]) by unirelay01.hostedemail.com (Postfix) with ESMTP id 73F481C2CF5 for ; Sat, 7 Nov 2026 18:18:07 +0000 (UTC) X-FDA: 85409132214.26.37129D4 Received: from tor.source.kernel.org (tor.source.kernel.org [172.105.4.254]) by imf23.hostedemail.com (Postfix) with ESMTP id AD328140005 for ; Sat, 7 Nov 2026 18:18:05 +0000 (UTC) Authentication-Results: imf23.hostedemail.com; dkim=pass header.d=kernel.org header.s=k20260515 header.b="Ia/97teJ"; spf=pass (imf23.hostedemail.com: domain of david@kernel.org designates 172.105.4.254 as permitted sender) smtp.mailfrom=david@kernel.org; dmarc=pass (policy=quarantine) header.from=kernel.org ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=hostedemail.com; s=arc-20220608; t=1794075485; 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=B5u0enV7WoY07iAM02G7yLnfFPYOwhEAg3fls+YTM3Q=; b=WV3SucfdItyV6LhIA/mPRyBGASq4ys5WK5MRc0aSFVsa4NWr4rdcprraAFdfJMU237OYSJ MK1QaZWDttqIR40zjCVq/sUpNBQncFosW+NKBtZ3ZFfnonNNJnC32ryqfpqDSBJxVuWROB ClzJ5JQ6BZCsHgf81TUorB0/RFSpvEc= ARC-Seal: i=1; a=rsa-sha256; d=hostedemail.com; s=arc-20220608; cv=none; t=1794075485; b=NDK24NuTH0jIeyFs1NW0y2a8amZ1wYyweHuA/BHm6Cl4OZBIb9d/QUzWs6tvIYlgpyUqhw kSqFiMaiv8DU533mGDaeWAYp7w2CVB3gi7nPvUUcvCdAT84FZVglvpwoRPm9yzexUr1uC/ +xCYqhuKYZJIbrZH0zGQpwajbXcBEGA= ARC-Authentication-Results: i=1; imf23.hostedemail.com; dkim=pass header.d=kernel.org header.s=k20260515 header.b="Ia/97teJ"; spf=pass (imf23.hostedemail.com: domain of david@kernel.org designates 172.105.4.254 as permitted sender) smtp.mailfrom=david@kernel.org; dmarc=pass (policy=quarantine) header.from=kernel.org Received: from smtp.kernel.org (quasi.space.kernel.org [100.103.45.18]) by tor.source.kernel.org (Postfix) with ESMTP id 260F9605C9; Sat, 7 Nov 2026 18:18:05 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 4E86B1F0089F; Sat, 7 Nov 2026 18:17:59 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=kernel.org; s=k20260515; t=1794075484; bh=B5u0enV7WoY07iAM02G7yLnfFPYOwhEAg3fls+YTM3Q=; h=Date:Subject:To:Cc:References:From:In-Reply-To; b=Ia/97teJ0XCMUaRoAAy30IBpByoJl4qBHWJ3UqCdkytmgjdZqbBOCdL0qHFAnCBQB UBr98J1NAwENhxg0gCf/5ltFls2WkCzYA1rjZ2NyNCdZVh/+93pM1eiKdO+kgWEG43 QI1OevbPXT0AyxCVi/xnpkQGDX7gaYdjfcYi8xNRKGsE7NZgHRGlGP3dJBpZdK5MNg kW8ZIjtY5nCi65dLWDu+CnNSiCHevJ+3/zkrR81Z8huD4LtS8IKMI0WL9H4F1n+nlg 08U8i0J0COg0GRabwDlnsWvg/R/n+EUEAbdw4OXZk3j5yVSPGpwtOBGO0ufy/v/x7I W7MRFj7Z1Mbqw== Message-ID: <8cd50b75-0845-4e82-a8ed-acfd3a261a3e@kernel.org> Date: Sat, 7 Nov 2026 19:17:52 +0100 X-Archived-By: MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [PATCH] mm/memory: refuse to map page cache folios that are not uptodate To: sashiko-reviews@lists.linux.dev, Kiryl Shutsemau , Andrew Morton Cc: "Kiryl Shutsemau (Meta)" , Lorenzo Stoakes , "Liam R. Howlett" , Vlastimil Babka , Mike Rapoport , Suren Baghdasaryan , Michal Hocko , "Matthew Wilcox (Oracle)" , Hugh Dickins , Chris Mason , Pedro Falcato , linux-mm@kvack.org, kernel-team@meta.com References: <20261106144323.3634477-1-kirill@shutemov.name> 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-Spam-Status: No, score=-7.3 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI,SPF_HELO_PASS,SPF_PASS,USER_AGENT_SANE_1 autolearn=no autolearn_force=no version=4.0.1 X-Rspamd-Server: rspam09 X-Stat-Signature: oi11ru9ghzqio1jj9q8mpwyojsmx9eph X-Rspamd-Queue-Id: AD328140005 X-Rspam-User: X-HE-Tag: 1794075485-801355 X-HE-Meta: U2FsdGVkX1+esyocObvp0Y6zLZAOD0cHHnAfPQ1P9INSF4ujHXY1cK8zjzpKCPxTjR8VdolhgOfyQuQKFQMNMX+8bgpgK6vxuB8cPpe7PE3Mm9+UE/SJ3A1ZZtm+vvPR6YhK4YhSIVYNIkPWLMPjYihuXkVHMEkfaFTQfYV97k6GkmkOo7njK8am03edpZ1Y4HKK41W+vq5rwSNn16VC9H4eMG1UDVPbDJbSNImH9fiyOlwigHDEiesmquEAb7p2SaTkzqXzmhtI5srLlWclYnhGS+ZbUUsWSdZUMU7h3GaET6luvedSmK4s5SKtCdYjOBFVIYtVpzZ1BAj5djJRFRU/ET3z2Gn//U6yCQmfQLlUAfvU7N5efb3chUmywr5/60lJFwJ1XOjascHlGutuSwMihR0vZeqDss8tWlbKieOlEdZfogjJOvhyLZMrJxOv0vkwmDCuFU/ciX5/j4qKjlR2cbktTggPnVDJkDfI7UW6h2YhR3hD6Zc0lyEi8/TdXxEbCt6J4Qu5eJXfLMO+BDO0i6jwliOfrGLaLPJFUnv6FuiZA3cUFGMBzqKLRDLmuK6RpnQfMxthekQ1hNTn8pibre0jynTCD6lRFMjMjGQWV/UOQXIYBg1gFJpdSc0sFAGiF7W4tNuAXgitk97plPIM9P8lXOqpm7ad9yQJDGzHkn8TgMUVEVoaaebKYZeSqHgs99hD2aOzXjX9D0YIKcifxu8CuSpnEmhF2N/WWM7X+2cvKrWb+DGrO+IWbQNIJI4dBcV/AD+W68zaXFJpTvZmDQVz7hw4tRTnCxudcpaYHOEICFAOSAe6oSoaVwzVtNQIPwj47Dg2T4ZY99F8jajf0pFSY+EQvF6zMFfz6ogZ55UeTTymWaOCslRPnIb0ru6MByAXmmxu7G0CzzWNIp8HlVglTeIVgTF6wlGE4GzLMD+YqKxWf7rbjGwHg3tcXwZESlWmKfrYYj/UiDy e5+4dIU/ vxFnr8YCEAK+2B1dqa36ljo053yVRSdDoEJ4tHxPMc376bmY3nd4IXDsmKKo7P0ZniEvGz5P04cr3TfRrzd2BLS4DW3K/TcTyDrbumuyIs4pX5APZF4EHElKd7gUede+bXMB5Oyjfi47hlhHvPVsEBq0dmEDSz0vdBIVzeZmjbRVeL+GyX451sQ7cJBr5lnpjOOEfsAgZXh1rQgRGigkfihvQKkGcKoJEhgbegLlAjVC3pwptfBfJ8a4gA3cJY9JCjcrCUVSfKpTL201ucqVMZ1gzUw== Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: List-Subscribe: X-Spam-Checker-Version: SpamAssassin 4.0.1 (2024-03-26) on aws-us-west-2-korg-listserv-alma10-1 On 11/7/26 15:43, sashiko-bot@kernel.org wrote: > Thank you for your contribution! Sashiko AI review found 2 potential > issues to consider: > - [Medium] mm: user-triggerable WARN_ONCE in do_set_pmd() via > MADV_COLLAPSE on fallocated shmem THP ... which we are fixing already. > - [Medium] mm: missing folio_test_uptodate() recheck in > do_shared_fault() mkwrite path Kiryl, can you look into that? > It also noticed 1 related pre-existing issue this patch does not > introduce: > - [High] mm/khugepaged: leak of vmf.prealloc_pte in set_huge_pmd() on > fallback [1] ... which we are fixing already. -- Cheers, David