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 605E0CD8CB2 for ; Wed, 10 Jun 2026 15:17:35 +0000 (UTC) Received: by kanga.kvack.org (Postfix) id 981EE6B0005; Wed, 10 Jun 2026 11:17:34 -0400 (EDT) Received: by kanga.kvack.org (Postfix, from userid 40) id 90C146B0088; Wed, 10 Jun 2026 11:17:34 -0400 (EDT) X-Delivered-To: int-list-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix, from userid 63042) id 7AC596B008C; Wed, 10 Jun 2026 11:17:34 -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 657366B0005 for ; Wed, 10 Jun 2026 11:17:34 -0400 (EDT) Received: from smtpin12.hostedemail.com (lb01a-stub [10.200.18.249]) by unirelay09.hostedemail.com (Postfix) with ESMTP id 14A4B8B135 for ; Wed, 10 Jun 2026 15:17:34 +0000 (UTC) X-FDA: 84864357228.12.3E850AA Received: from sea.source.kernel.org (sea.source.kernel.org [172.234.252.31]) by imf14.hostedemail.com (Postfix) with ESMTP id 1DC48100011 for ; Wed, 10 Jun 2026 15:17:31 +0000 (UTC) Authentication-Results: imf14.hostedemail.com; dkim=pass header.d=kernel.org header.s=k20260515 header.b=gPjjXUGF; spf=pass (imf14.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=1781104652; 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=L+CmaXpY2ajvSuZ9t2P3t7zTOGpfnPXbfrWpFlrAdnE=; b=P2HndY80Mzc/mIPjOk80Bp2nF7WFu7rNe9Zmsi+ZvnsKES/DDOjT3tEHntrQmueF1nWnK/ 2PlyMnGkMpgoyC8Ipj+4Vi0o/qMfPXrAkcc5h0dAQgdz+x1jjET8eY30McT9WKY/8bLLre 7Djzg/cazEzrxC7QRnhGxXGDVoQP/54= ARC-Seal: i=1; a=rsa-sha256; d=hostedemail.com; s=arc-20220608; cv=none; t=1781104652; b=timjEz8175+24gRfiyb1d3PuVjxZZU/TX43kD3kR9gtSZ697r+5clCtENZGlAo3vU5HmdY NXuWLqr9+WUPYyxXxWJ2mc5k1VcD2aqUm7mtzQ1Z6+TFEC4VJPtRQm4BtdBLGD+UWs/aiV TzczW1Yw8EIifXLy5MXzcAJd88Kfz5M= ARC-Authentication-Results: i=1; imf14.hostedemail.com; dkim=pass header.d=kernel.org header.s=k20260515 header.b=gPjjXUGF; spf=pass (imf14.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 Received: from smtp.kernel.org (quasi.space.kernel.org [100.103.45.18]) by sea.source.kernel.org (Postfix) with ESMTP id 3957D40E00; Wed, 10 Jun 2026 15:17:31 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 891531F00898; Wed, 10 Jun 2026 15:17:18 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=kernel.org; s=k20260515; t=1781104651; bh=L+CmaXpY2ajvSuZ9t2P3t7zTOGpfnPXbfrWpFlrAdnE=; h=Date:Subject:To:Cc:References:From:In-Reply-To; b=gPjjXUGFSNeUYyudX6lCtjPBgwDJ6k9eLq3DUm0ABtfmSBt23nCpt8TouCnR3xVzS xBh2GJs+f3hGdOFZhfh2vOCC6LJhvKYYZ+zox36bu4f64lmIov6tSZTMLywkIR3nxS jXUj4R0oSapk/2I7Z70oY+5m+DglYcFKs451+tM1MtV4SE9g40oLKfvc5+a4FhcEqQ tetToQw7miolHmyZTjN6hcQclQYaG/4pC2iQbBZvs7aGegJ/fkU9pKrEt4UzUSBB9z gQzN6hlXwrGe5giagcoZD74tE5sCSk97foQNhdSqeqM+q+kwD8frml06pDsrmi9OyD ydTYouwynuqIA== Message-ID: Date: Wed, 10 Jun 2026 17:17:15 +0200 MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [PATCH v2] mm: page_reporting: allow driver to set batch capacity To: "Michael S. Tsirkin" , linux-kernel@vger.kernel.org Cc: Miaohe Lin , Jason Wang , Xuan Zhuo , Eugenio Perez , Muchun Song , Oscar Salvador , Andrew Morton , Lorenzo Stoakes , "Liam R. Howlett" , Vlastimil Babka , Mike Rapoport , Suren Baghdasaryan , Michal Hocko , Brendan Jackman , Johannes Weiner , Zi Yan , Baolin Wang , Nico Pache , Ryan Roberts , Dev Jain , Barry Song , Lance Yang , Hugh Dickins , Matthew Brost , Joshua Hahn , Rakie Kim , Byungchul Park , Gregory Price , Ying Huang , Alistair Popple , Christoph Lameter , David Rientjes , Roman Gushchin , Harry Yoo , Axel Rasmussen , Yuanchu Xie , Wei Xu , Chris Li , Kairui Song , Kemeng Shi , Nhat Pham , Baoquan He , virtualization@lists.linux.dev, linux-mm@kvack.org, Andrea Arcangeli , Naoya Horiguchi , Alexander Duyck References: 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-Queue-Id: 1DC48100011 X-Rspam-User: X-Stat-Signature: enfi9o7b3hszbsd7rge7cgzxmfgre7wg X-Rspamd-Server: rspam08 X-HE-Tag: 1781104651-50943 X-HE-Meta: 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 PClQqYGh ma84r77k0ZeknoOzDgm2xqfdBj4E5oo76No6VA1aa0VLv3nIY88eF7aXvli5y7ylo8VfoSlxudb4XbuKlMXQbqvj7T9sojGtN7xo17sJn18ilTM3ho6KIHuSZyTPiYVGfSXt66CrtS/g1FiMpmvbzoaUZnsvqW7kf1rldD7XTvuycw5qEz0dKNMzkh+WvpsNma0N2cUwPby1YKyx0DDxARmvzi8RPHbYAlFXfwl0hPFXU9WDvDcscs40nAeGwtaXfLkH7GLCxo9PwxumhEThoyeZKONmP+T6zSghmnDjpcu4AarxFjSC6I+uKSdTV5yROFYOpduPhm7rLe/VD3/kSN8B8GB9ThLyuTlvm4HW3NhBD2yXAePXLdLAcdRC/D7OF4vMW5Ti3JFpDQnhALb7r9/1WvA== Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: List-Subscribe: List-Unsubscribe: > --- a/include/linux/page_reporting.h > +++ b/include/linux/page_reporting.h > @@ -22,6 +22,9 @@ struct page_reporting_dev_info { > > /* Minimal order of page reporting */ > unsigned int order; > + > + /* Max pages per report batch; 0 (default) means PAGE_REPORTING_CAPACITY */ > + unsigned int capacity; > }; I think PAGE_REPORTING_CAPACITY still documents "This value should always be a power of 2, see page_reporting_cycle()" With that: Acked-by: David Hildenbrand (Arm) -- Cheers, David