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]) (using TLSv1 with cipher DHE-RSA-AES256-SHA (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 963C4CC6B34 for ; Thu, 15 Oct 2026 13:34:05 +0000 (UTC) Received: by kanga.kvack.org (Postfix) id 83B726B008C; Thu, 15 Oct 2026 09:34:04 -0400 (EDT) Received: by kanga.kvack.org (Postfix, from userid 40) id 7EC1E6B0092; Thu, 15 Oct 2026 09:34:04 -0400 (EDT) X-Delivered-To: int-list-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix, from userid 63042) id 6DB2C6B0095; Thu, 15 Oct 2026 09:34:04 -0400 (EDT) X-Delivered-To: linux-mm@kvack.org Received: from relay.hostedemail.com (smtprelay0016.hostedemail.com [216.40.44.16]) by kanga.kvack.org (Postfix) with ESMTP id 46F796B008C for ; Thu, 15 Oct 2026 09:34:04 -0400 (EDT) Received: from smtpin21.hostedemail.com (lb01a-stub [10.200.18.249]) by unirelay06.hostedemail.com (Postfix) with ESMTP id D0EFFA87F9 for ; Thu, 15 Oct 2026 13:34:03 +0000 (UTC) X-FDA: 85324953966.21.524B71F Received: from tor.source.kernel.org (tor.source.kernel.org [172.105.4.254]) by imf27.hostedemail.com (Postfix) with ESMTP id 189774000E for ; Thu, 15 Oct 2026 13:34:01 +0000 (UTC) Authentication-Results: imf27.hostedemail.com; dkim=pass header.d=kernel.org header.s=k20260515 header.b=F0LxgPhN; spf=pass (imf27.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=1792071242; 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=W2OTIlY3rqRxCOqXm2QKJNxsoQo8QQJBqBmwh6+SUNk=; b=kEqPYFAj1pXaVSrY+AEC/rS5iWUzaRD73ol+sj47fFJ3fqPiW9ONYLJyalFzzTSpTkRvE1 r089n1AKpJrbnTccAC4wSIan8BxfV7BumWIezgjcmMQwL5EcEFZ+IsLw04+OsXa3DHzOcx p52Qi0kg0XYZ0LmbIA9drzZHHDV+etw= ARC-Authentication-Results: i=1; imf27.hostedemail.com; dkim=pass header.d=kernel.org header.s=k20260515 header.b=F0LxgPhN; spf=pass (imf27.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-Seal: i=1; a=rsa-sha256; d=hostedemail.com; s=arc-20220608; cv=none; t=1792071242; b=TCZVso8A8Dnw7wjtdEqwS+zm13CafaEmsL0+VYwrA/R6DvQkqkFDdGzk0xDoPubUS5DjLI qx1iCq366zjyZHphZlgSL6qT4sB6YP+1KGfeexAO52CUptDTR53FKzMqzOpT16DUGpg79m s84QF6zr0MUjpHEnqn80bNQC1Uv5JmI= Received: from smtp.kernel.org (quasi.space.kernel.org [100.103.45.18]) by tor.source.kernel.org (Postfix) with ESMTP id D001760120; Thu, 15 Oct 2026 13:34:00 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 32EF11F000C4; Thu, 15 Oct 2026 13:33:55 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=kernel.org; s=k20260515; t=1792071240; bh=W2OTIlY3rqRxCOqXm2QKJNxsoQo8QQJBqBmwh6+SUNk=; h=Date:Subject:To:Cc:References:From:In-Reply-To; b=F0LxgPhNni919ThpzPj+Foc7LijuWTjbpuiYcHqGuGR+xJBN5S3ix0aHVf1w6XOEB fG+hVID8BtLEFfnZAr73LGYSs3eF7hXFd6mJIqtuXQfYnGRSaKkq0NvARLXJeqr5Aq onyu5SWoGIe0dKDILgDoYbVNo1qBLRQjfB52i68WeIk9G7kZcSAaF4MoXG+6zVij+e TCyM9ZmqAkethyp0D07IODzTeXU6b0m9apO+RfbqqZ2bJdco/N0TdYNbV1ZmNUQfMA OODykASHKZGTT3c+5ySYx1m6kn/e/SkPQT7OseMBM09lJVa6NSDs3SOI/QrqeiKXKm kqyoe21v9Cozw== Message-ID: Date: Thu, 15 Oct 2026 15:33:52 +0200 MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [PATCH v2] khugepaged: hold invalidate_lock across collapse_file() readahead To: Lance Yang , "Lorenzo Stoakes (ARM)" , Andrew Morton Cc: Nguyen Ngoc Thang , Zi Yan , Baolin Wang , "Liam R . Howlett" , Nico Pache , Ryan Roberts , Dev Jain , Barry Song , Usama Arif , Matthew Wilcox , linux-mm@kvack.org, linux-kernel@vger.kernel.org, stable@vger.kernel.org, Jan Kara , Hugh Dickins References: <20260913163644.122133-1-ngocthang2710.1999@gmail.com> <20260913111700.6de78b5834842f7dd3f12d07@linux-foundation.org> <1fe4027a-6ad8-42a1-9943-cb3b8aad3fb6@kernel.org> 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-Server: rspam10 X-Rspamd-Queue-Id: 189774000E X-Rspam-User: X-Stat-Signature: ybdfh35436yfhnhs614ixtz44zmn5kfm X-HE-Tag: 1792071241-186265 X-HE-Meta: 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 nRmoDtjV hCV2ex0o+qYGNrbvEvp89/vfVi7G6uANA7DIAfLy71DuTbOxF3KCRrD1eTfAIYXkNtwcaQLfBxlSDCM2rsW1d+5kQfra2AhdSmCdlgixX2S/0VvFvr6uKoOLeVWhwcZYRYuMXAx47O9wkbJ2gWv095s7L1waIdxEhVfaX9q3LVxMJfzonD5guYhjsPMPdY+09CwPEZ/mO1ZVPjs2cPBx9GGZRNzg1c+mXL/blWqTAB+HAlxSHD6dxvGwb4Odq+Xfq2n+5AL+q5mMfsaEd0hSiFKJsxAOIlFVCnW1fnEy9ky3BVPMXF+8cWyNLadN8nv7JuSxcBVd8LmnGOfYrCBqAC6CvQon3C9BiTGNkS1eLHI5HEaLJcbryLQKA5v989Gggn9iTOTt8a+EibzJR0uF68Q4BWA== Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: List-Subscribe: List-Unsubscribe: On 10/15/26 15:17, Lance Yang wrote: > > > On 2026/10/15 20:26, David Hildenbrand (Arm) wrote: >> On 9/13/26 20:48, Lorenzo Stoakes (ARM) wrote: >>> (Nguyen - do not send v2 in reply to v1, look across mm and see how things are >>> done here). >>> >>> somebody who has a >>> >>> >>> Also a change log, and that mm doesn't like sending a respin in-reply-to a >>> previous version. Which is all consistent with somebody using e.g. openclaw to >>> pepper generated patches across the kernel... >>> >>> >>> See https://lore.kernel.org/linux-mm/aqbtfms0_2ULBIT7@gremlin/ >>> >>> I am not really entirely happy with somebody who has sent a flurry of patches >>> across disparate subsystems with no previous track record being in charge of a >>> potentially backported fix. >>> >>> It's David's decision but I think this fix should be taken over by somebody >>> else. >> >> So what's the status of this? Any volunteers? Otherwise I'll polish this up. > > I can take this over if no one else volunteers :D > Thanks! -- Cheers, David