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 B6C3AC79FB7 for ; Wed, 9 Sep 2026 14:23:27 +0000 (UTC) Received: by kanga.kvack.org (Postfix) id ABB1C6B0092; Wed, 9 Sep 2026 10:23:26 -0400 (EDT) Received: by kanga.kvack.org (Postfix, from userid 40) id A92116B0093; Wed, 9 Sep 2026 10:23:26 -0400 (EDT) X-Delivered-To: int-list-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix, from userid 63042) id 95A466B0095; Wed, 9 Sep 2026 10:23:26 -0400 (EDT) X-Delivered-To: linux-mm@kvack.org Received: from relay.hostedemail.com (smtprelay0015.hostedemail.com [216.40.44.15]) by kanga.kvack.org (Postfix) with ESMTP id 6EE196B0092 for ; Wed, 9 Sep 2026 10:23:26 -0400 (EDT) Received: from smtpin01.hostedemail.com (lb01a-stub [10.200.18.249]) by unirelay02.hostedemail.com (Postfix) with ESMTP id 12973120223 for ; Wed, 9 Sep 2026 14:23:25 +0000 (UTC) X-FDA: 85194441570.01.ADCBA91 Received: from sea.source.kernel.org (sea.source.kernel.org [172.234.252.31]) by imf07.hostedemail.com (Postfix) with ESMTP id 488CF40007 for ; Wed, 9 Sep 2026 14:23:23 +0000 (UTC) Authentication-Results: imf07.hostedemail.com; dkim=pass header.d=kernel.org header.s=k20260515 header.b=IQiuCrQG; spf=pass (imf07.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=1788963803; 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=i6W2FGwXgxwv6NRv5ZRSdh10FfBE7WUHV7rXrybSwJ8=; b=O0ii5JnXdUzN/hfkZl3071cfiQh82pCUAjHMMRZiTFnPgc5Beayc2yXRUNrs/m0m/W7Fzb 0hp3LV9YvkarFoDJp868zBRaMP1qBa81WAoRk/VhHv6+ITSCAFEHhjiIlDWPjTItZPl82n Q6ZfZ05TSbitUDtTvM25p8+WU99+iVA= ARC-Seal: i=1; a=rsa-sha256; d=hostedemail.com; s=arc-20220608; cv=none; t=1788963803; b=v71Hjr2quajTYpNhwXjYLuGKoBmr16snuyet17e6hxxFNLRdVJRTehZJrjbBEEkWrDr7IL 4VZG99nz+g2rL2uIDchZybjuTBmTt7v5DfaRSzcBZ7HSUNOGdfGuYgDV8vWcxlt0k/4EAX gFAKaK6G8EUSomWDqzDCU3CAfnBNHt8= ARC-Authentication-Results: i=1; imf07.hostedemail.com; dkim=pass header.d=kernel.org header.s=k20260515 header.b=IQiuCrQG; spf=pass (imf07.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 60DA94359A; Wed, 9 Sep 2026 14:23:22 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id D312F1F00A3A; Wed, 9 Sep 2026 14:23:14 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=kernel.org; s=k20260515; t=1788963802; bh=i6W2FGwXgxwv6NRv5ZRSdh10FfBE7WUHV7rXrybSwJ8=; h=Date:Subject:From:To:Cc:References:In-Reply-To; b=IQiuCrQGfz/BNM0KjlCtC6onVCVz8KRUfEkYfYaus7vqqG27w98ZjrAnsKsKOzPHt 4fH96H8AwHsQOjwGzabUEx27K1X7KBLc4EqiSufWnxQ46vitgzJfGTBy28c7C4WAjv i9byds1do2aeLwOEdHAyfRQyKVWihBqcTTdDplc+OYOi9U7UlUaRe7tayrhF5DOS8W 563z85pdqkMIzG9Mv0VEn2tXd6vjaelbCchqReVT/whqJRFnb23yL6aBQ9Sk1FahoC D3RCMc6ohPHre8ZPzLd+XuEb8mhS4HWwD7CVFSHJO7Yn6OsdQJPwWo5EIAGHMLllkJ bM9QojvCuIZvA== Message-ID: Date: Wed, 9 Sep 2026 16:23:13 +0200 MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [PATCH v3 12/14] treewide: replace PagePrivate() with page_private() From: "David Hildenbrand (Arm)" To: Zi Yan , "Matthew Wilcox (Oracle)" , Andrew Morton , Muchun Song , Lorenzo Stoakes , "Liam R. Howlett" , Vlastimil Babka , Mike Rapoport , Suren Baghdasaryan , Michal Hocko , Baolin Wang , Nico Pache , Ryan Roberts , Dev Jain , Barry Song , Lance Yang , Usama Arif , Gregory Price , Ying Huang , Alistair Popple , Johannes Weiner , Qi Zheng , Shakeel Butt , Kairui Song Cc: linux-mm@kvack.org, linux-kernel@vger.kernel.org, Song Liu , Yu Kuai , Ilya Dryomov , Alex Markuze , Viacheslav Dubeyko , Li Nan , Xiao Ni , linux-raid@vger.kernel.org, ceph-devel@vger.kernel.org References: <20260907-remove-pg_private-v3-0-6ae22f9d9272@nvidia.com> <20260907-remove-pg_private-v3-12-6ae22f9d9272@nvidia.com> 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-Stat-Signature: d5h5uyhejq6psuwzpf1nhqq4ta4k14m6 X-Rspam-User: X-Rspamd-Queue-Id: 488CF40007 X-Rspamd-Server: rspam03 X-HE-Tag: 1788963803-765770 X-HE-Meta: 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 gTDNsOTe Har6BOqh201O6F0LvI8XBEc9jU4lQiYmZ+J016Qi7T8YBrtP7LilUUw6TPf7ivVgE+FUNZUI7JigXFan3CcuazHr9biMNwrZVbeoFFsaKHhCxag7ohovkCwTCyZEJ9LaJzGydiawrPJ/z24aLcl8Ft2fIqAGkaQjqHBLl2Ed1NBgcW1XM9cksd6Zce2UZYnDv2/XQsjHzrWGPD+6he2IXq8zhrnUB1lUZkKajSZAULtYlM5n5HkXxrGC39JJVUa3NS97siz1OU6hNRFBxYwzjeroiQoeLEmLXNfKhY28osaIJRd2WuMkSA4C3udjzLeas1dal50c78+GfL8M= Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: List-Subscribe: List-Unsubscribe: On 9/9/26 16:18, David Hildenbrand (Arm) wrote: > On 9/8/26 04:56, Zi Yan wrote: >> PG_private is going to be removed and its check is replaced by checking >> page->private != NULL. >> > > You should likely clarify here that, for these users (the pages they deal with), > PG_private is set if and only if page->private != NULL. Consequently, there is > no functional change. Ah, in previous patch: +static __always_inline int PagePrivate(const struct page *page) +{ + return !!page->private; +} So this is not about PG_private *at all* :) Best to clarify that. -- Cheers, David