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 AAD88C5AD5A for ; Wed, 12 Aug 2026 07:45:51 +0000 (UTC) Received: by kanga.kvack.org (Postfix) id 97F756B009E; Wed, 12 Aug 2026 03:45:50 -0400 (EDT) Received: by kanga.kvack.org (Postfix, from userid 40) id 957826B00A0; Wed, 12 Aug 2026 03:45:50 -0400 (EDT) X-Delivered-To: int-list-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix, from userid 63042) id 8700D6B00A1; Wed, 12 Aug 2026 03:45:50 -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 65AB36B009E for ; Wed, 12 Aug 2026 03:45:50 -0400 (EDT) Received: from smtpin26.hostedemail.com (lb01a-stub [10.200.18.249]) by unirelay08.hostedemail.com (Postfix) with ESMTP id 066721402E5 for ; Wed, 12 Aug 2026 07:45:50 +0000 (UTC) X-FDA: 85091833260.26.9605632 Received: from sea.source.kernel.org (sea.source.kernel.org [172.234.252.31]) by imf16.hostedemail.com (Postfix) with ESMTP id 3D23D180005 for ; Wed, 12 Aug 2026 07:45:48 +0000 (UTC) Authentication-Results: imf16.hostedemail.com; dkim=pass header.d=kernel.org header.s=k20260515 header.b=H2AjGeld; spf=pass (imf16.hostedemail.com: domain of david@kernel.org designates 172.234.252.31 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=1786520748; b=DSXFinPimNXfQ1QDPvwDzchvpiK6Pht2cQP4Y07YJdLH72h900pf0dQELaj1cLbJ8obJE2 ZAfj0uhnA26V/p4fWO6MlBaPmtTL7REzieVmINmQBCJbjh+oFAlIrKf1zsr1v+9kK9zjU5 bWb6FrkSyN4YAssw2OZfHneUT+RzzGE= ARC-Authentication-Results: i=1; imf16.hostedemail.com; dkim=pass header.d=kernel.org header.s=k20260515 header.b=H2AjGeld; spf=pass (imf16.hostedemail.com: domain of david@kernel.org designates 172.234.252.31 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=1786520748; 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=Owe0SwLfEcUy2J2+BGOCc0FMltSAhdeyT7ok848pM7g=; b=X4Kk4V36xRx80uHnUJNElMDlajDOd/L+Nmeddl2NyuWEEqvo5MPQd/LPMq461tpDLO0EWS pcIJ274MnP9MhLly0yUdihjeSAvPw0fFR7gJjwCTq5aePNaBD3SgL0I7F5oEXqhPA9IRb6 wJZyLe9JEsMbYpr0Cnp3mptp3um99sI= Received: from smtp.kernel.org (quasi.space.kernel.org [100.103.45.18]) by sea.source.kernel.org (Postfix) with ESMTP id 80E6F4121E; Wed, 12 Aug 2026 07:45:47 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id C44331F000E9; Wed, 12 Aug 2026 07:45:43 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=kernel.org; s=k20260515; t=1786520747; bh=Owe0SwLfEcUy2J2+BGOCc0FMltSAhdeyT7ok848pM7g=; h=Date:Subject:To:Cc:References:From:In-Reply-To; b=H2AjGeldjS9tQXKTQNsf9qRK87gfVdBp+DqH77DoqccviEyI+Kr2Cy6kz44h77Idv Y/PNSL4HB+kB387pWllkyjUz5OWgA5UWMmX0xvxm+km7FsVCB6XLxfgJnM7BdIFs1i WOcMjEeUmU0a8HUwTTGLq6zJg/ByTNdciEDA486KVv3XzI6MJJBz5GLohyW4fOSydL 4FRTMgGdVUfZ57YQ0qTe/BTKGrmB1YcAseiz2MWUtW4N18KGXi5j+tnzrDZECgBdHj q3GBXCccG8XJUaV6Z1P1xwLD0qF/MvpaA2iazSr3Q+zmzWSem0dkurAYFV8UUxP0Kl nDmK4XDLqr3WA== Message-ID: <2e6382b4-8a0f-4e38-bc7d-3e3bac3a3f59@kernel.org> Date: Wed, 12 Aug 2026 09:45:42 +0200 MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [PATCH 2/2] mm/page_alloc: replace custom bad page ratelimiting logic To: Pedro Falcato , Andrew Morton Cc: Lorenzo Stoakes , "Liam R. Howlett" , Vlastimil Babka , Mike Rapoport , Suren Baghdasaryan , Michal Hocko , Brendan Jackman , Johannes Weiner , Zi Yan , linux-mm@kvack.org, linux-kernel@vger.kernel.org References: <20260811172156.356053-1-pfalcato@suse.de> <20260811172156.356053-3-pfalcato@suse.de> 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: <20260811172156.356053-3-pfalcato@suse.de> Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit X-Rspam-User: X-Rspamd-Server: rspam04 X-Rspamd-Queue-Id: 3D23D180005 X-Stat-Signature: 1j53489bniqa9qct5s4aidapxs9hbkot X-HE-Tag: 1786520748-315352 X-HE-Meta: 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 BXrEsFGw ZmyOqEX58akQs8GXyTiFkAkf2/mjrysPxhFM/rOOZbB0E0ipQajQ9lO/qBko81Fp7VKzy8ZxypwEBqruqIlnuoWO5HiyLUTBC19zeu/xaEjnklZiYPpLh/4L9euZt5Ldec0vGyebKSbWAEo6uT11xkQySXMRVgcMgxJ30xSu7brIqgQf5Cg63mT1jPSZ6fKQ2qAh1znNlH+iFXnGuqrHliTrAthmsnuAdALpYKTTNaAYG5A7fHOUKSESf1PUMy9D5i8QnhEd0hn7+X0K2mWeC9tFjl0x7IXTlFqyacDJvu93tfGKG/wojU3uSy6XMrg/uDk8EU4qWK62kRO0= Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: List-Subscribe: List-Unsubscribe: On 8/11/26 19:21, Pedro Falcato wrote: > The current logic (allow up to $BURST prints per minute) can be entirely > replaced by the generic version in lib/ratelimit.c, used around the kernel. > > Do so. The only functional difference should be that the new logs will > read something like: > > KERN_WARNING "bad_page: %d callbacks suppressed\n", ... > > But that should be fine enough. > > Signed-off-by: Pedro Falcato > --- Nice :) Acked-by: David Hildenbrand (Arm) -- Cheers, David