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 9B5B5EEA845 for ; Thu, 12 Feb 2026 19:45:56 +0000 (UTC) Received: by kanga.kvack.org (Postfix) id 0EFA66B0089; Thu, 12 Feb 2026 14:45:56 -0500 (EST) Received: by kanga.kvack.org (Postfix, from userid 40) id 09A0D6B008A; Thu, 12 Feb 2026 14:45:56 -0500 (EST) X-Delivered-To: int-list-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix, from userid 63042) id EB4086B008C; Thu, 12 Feb 2026 14:45:55 -0500 (EST) X-Delivered-To: linux-mm@kvack.org Received: from relay.hostedemail.com (smtprelay0010.hostedemail.com [216.40.44.10]) by kanga.kvack.org (Postfix) with ESMTP id DC3DB6B0089 for ; Thu, 12 Feb 2026 14:45:55 -0500 (EST) Received: from smtpin23.hostedemail.com (a10.router.float.18 [10.200.18.1]) by unirelay03.hostedemail.com (Postfix) with ESMTP id 8DC95B749E for ; Thu, 12 Feb 2026 19:45:55 +0000 (UTC) X-FDA: 84436835070.23.57C4183 Received: from sea.source.kernel.org (sea.source.kernel.org [172.234.252.31]) by imf23.hostedemail.com (Postfix) with ESMTP id B3155140004 for ; Thu, 12 Feb 2026 19:45:53 +0000 (UTC) Authentication-Results: imf23.hostedemail.com; dkim=pass header.d=kernel.org header.s=k20201202 header.b=XJ59lTq8; spf=pass (imf23.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=1770925553; 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=3sqyKvzr0YAFEebxYbHEeScYgp6FLkzBHlQXM1pkWA0=; b=gpFWPj/yetc0wrpgBpXFjDWichlUFMi6vhUkXdndXzpy4mwjOa3fFWeY3rxNNcu+B+D8Om FDYzj0BX1qpgM1A40K2zW8ppClw3WpVbJNW+pIjTh9ZPFMJIxK4oql3R1453dspra3KwlC e6SUYEPj/+eXb/9DO/NAuHPLcTOhhoI= ARC-Authentication-Results: i=1; imf23.hostedemail.com; dkim=pass header.d=kernel.org header.s=k20201202 header.b=XJ59lTq8; spf=pass (imf23.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; s=arc-20220608; d=hostedemail.com; t=1770925553; a=rsa-sha256; cv=none; b=8jlaBfO+bFDQrSZZC+bkCzaG5Ja31mh8m/I5tDnthrlSvWnNVCs4oqBwvYrkDU3CGkXvux gnrAS/jyy6R0fk9qdtdjkUzqEVzpQmuj80JyXc+uL2RhYDh7uelPYNz+QT07tcFzK5rNt4 7Ah+0PSAikzWL8N60Dd66etiCOwvukU= Received: from smtp.kernel.org (transwarp.subspace.kernel.org [100.75.92.58]) by sea.source.kernel.org (Postfix) with ESMTP id 23BE14075F; Thu, 12 Feb 2026 19:45:52 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id C0D94C4CEF7; Thu, 12 Feb 2026 19:45:36 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1770925552; bh=Ic65mngQtaJXVx3RmUW7BxomzrEKSbMbTTCrwVeU+JQ=; h=Date:Subject:To:Cc:References:From:In-Reply-To:From; b=XJ59lTq8UZ2u+Lh0XzobGED46KgmSHT058g4YXfjiYOFUYR0kHIa/J/A0+ZQvPEiO iLqL3/5TrFz+hX1F6sRsBpJYPD9DaAn1aHkNmX9FQpixCQlPz4foedvzlw59yi8COP yWiWie+4oNN18w+pLSFhL4mRxRPW8GZnl1PjsJwULgOrJuz5zM60d6z/h7gUjf6Ru3 5TR8adl9ofiry4MBq9nKc1ddLP0Nu34EOBKwrhhXjoAG0l4nqACaNGTfy43LXi09DD DuO62fidnN3Yf0F6h6HMH+azgd1TCDe7V/fSDGkI9gK1QVykkt/xQxReE1JZIDQo// t1f+/bmObxBqg== Message-ID: <1d67ddd1-8549-4c49-bac9-29e49b540bd3@kernel.org> Date: Thu, 12 Feb 2026 20:45:34 +0100 MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [PATCH mm-unstable v1 2/5] mm: introduce is_pmd_order helper To: Nico Pache , linux-kernel@vger.kernel.org, linux-mm@kvack.org Cc: aarcange@redhat.com, akpm@linux-foundation.org, anshuman.khandual@arm.com, apopple@nvidia.com, baohua@kernel.org, baolin.wang@linux.alibaba.com, byungchul@sk.com, catalin.marinas@arm.com, cl@gentwo.org, corbet@lwn.net, dave.hansen@linux.intel.com, dev.jain@arm.com, gourry@gourry.net, hannes@cmpxchg.org, hughd@google.com, jackmanb@google.com, jack@suse.cz, jannh@google.com, jglisse@google.com, joshua.hahnjy@gmail.com, kas@kernel.org, lance.yang@linux.dev, Liam.Howlett@oracle.com, lorenzo.stoakes@oracle.com, mathieu.desnoyers@efficios.com, matthew.brost@intel.com, mhiramat@kernel.org, mhocko@suse.com, peterx@redhat.com, pfalcato@suse.de, rakie.kim@sk.com, raquini@redhat.com, rdunlap@infradead.org, richard.weiyang@gmail.com, rientjes@google.com, rostedt@goodmis.org, rppt@kernel.org, ryan.roberts@arm.com, shivankg@amd.com, sunnanyong@huawei.com, surenb@google.com, thomas.hellstrom@linux.intel.com, tiwai@suse.de, usamaarif642@gmail.com, vbabka@suse.cz, vishal.moola@gmail.com, wangkefeng.wang@huawei.com, will@kernel.org, willy@infradead.org, yang@os.amperecomputing.com, ying.huang@linux.alibaba.com, ziy@nvidia.com, zokeefe@google.com References: <20260212021835.17755-1-npache@redhat.com> <20260212021835.17755-3-npache@redhat.com> 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: <20260212021835.17755-3-npache@redhat.com> Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit X-Rspam-User: X-Rspamd-Queue-Id: B3155140004 X-Rspamd-Server: rspam07 X-Stat-Signature: 8u9dyj91t8a6fyifinccibddd4fxc3fk X-HE-Tag: 1770925553-933164 X-HE-Meta: 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 yy/0FI1Y szBoMaZkZmd5iavp8TmPdG9t8XZsCvqo10DTKoHB+3lvAv49khuS1ucZRCmdQ2gctqbNcgPmS9jE780jttm+CtTx6uH+7MO+9JpjirzeYISq9q6G173ARBOi2L0Kw1/8CSvg/w/TpikQS1HYuXUba81oh97C9NwNWGB447IaZLtiz4hSvgx1FlW+jjS9FiWpftKn+ioQ0yepSWvEnrjnSnFTQwTefSoWaMPaScfALPrd9gAMjZnuXC3JJvSXvwlb7hD6aG6KxcTMnokUNFsUoUho8cu66pbqElVmVLRoohZFKVBgcoTH1EpOq/VVtg928Etch+28taYoMzFEhIPfPgGlAZG7kqjdXdiXQDIBT6HSqetE/6X5YuFPLGUMPohjE7wZrrhRmieSQIH7kvRMq8PXP8AoanwuCDYMx6gQ8ej/j19X7pyYJdk2OhHXNvVtlv64lf9TK5gm9u4Rg0paFiv6ldw== X-Bogosity: Ham, tests=bogofilter, spamicity=0.000000, version=1.2.4 Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: List-Subscribe: List-Unsubscribe: On 2/12/26 03:18, Nico Pache wrote: > In order to add mTHP support to khugepaged, we will often be checking if a > given order is (or is not) a PMD order. Some places in the kernel already > use this check, so lets create a simple helper function to keep the code > clean and readable. > > Reviewed-by: Lorenzo Stoakes > Suggested-by: Lorenzo Stoakes > Signed-off-by: Nico Pache > > arches# pick b3ace8be204f # mm/khugepaged: rename hpage_collapse_* to collapse_* > --- Acked-by: David Hildenbrand (Arm) -- Cheers, David