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]) by smtp.lore.kernel.org (Postfix) with ESMTP id 904D9C30658 for ; Fri, 5 Jul 2024 10:14:25 +0000 (UTC) Received: by kanga.kvack.org (Postfix) id 270C46B008A; Fri, 5 Jul 2024 06:14:25 -0400 (EDT) Received: by kanga.kvack.org (Postfix, from userid 40) id 21F826B0096; Fri, 5 Jul 2024 06:14:25 -0400 (EDT) X-Delivered-To: int-list-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix, from userid 63042) id 0C10E6B0098; Fri, 5 Jul 2024 06:14:25 -0400 (EDT) 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 E0B176B008A for ; Fri, 5 Jul 2024 06:14:24 -0400 (EDT) Received: from smtpin07.hostedemail.com (a10.router.float.18 [10.200.18.1]) by unirelay04.hostedemail.com (Postfix) with ESMTP id 157011A0557 for ; Fri, 5 Jul 2024 10:14:24 +0000 (UTC) X-FDA: 82305289248.07.0E4F005 Received: from us-smtp-delivery-124.mimecast.com (us-smtp-delivery-124.mimecast.com [170.10.129.124]) by imf11.hostedemail.com (Postfix) with ESMTP id C792E40021 for ; Fri, 5 Jul 2024 10:14:21 +0000 (UTC) Authentication-Results: imf11.hostedemail.com; dkim=pass header.d=redhat.com header.s=mimecast20190719 header.b=McFvS1M8; spf=pass (imf11.hostedemail.com: domain of david@redhat.com designates 170.10.129.124 as permitted sender) smtp.mailfrom=david@redhat.com; dmarc=pass (policy=none) header.from=redhat.com ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=hostedemail.com; s=arc-20220608; t=1720174448; 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=66SEsZ3Y+YdmjAOiXUK8UPRFf6SUysBbZ0tEFkW2+Oc=; b=hTrOWfU0/Mlg9UrJXk7EQmNwDaVP/SxKodxLbmHw315/itdutlkM8X0HTtaBIG23JKOov8 Ll57dMGISNmpHCO+C6eeo8VC1H3jCEorg+Zy3J7ZIUaSc6Usjr6nQeaWtkh7o53t3Sxg6z 0kfsgfzMu4rdqvvNvGSH6bNWl/JteVc= ARC-Authentication-Results: i=1; imf11.hostedemail.com; dkim=pass header.d=redhat.com header.s=mimecast20190719 header.b=McFvS1M8; spf=pass (imf11.hostedemail.com: domain of david@redhat.com designates 170.10.129.124 as permitted sender) smtp.mailfrom=david@redhat.com; dmarc=pass (policy=none) header.from=redhat.com ARC-Seal: i=1; s=arc-20220608; d=hostedemail.com; t=1720174448; a=rsa-sha256; cv=none; b=Oc7Fo/8x0LbN3JylqlJTsWReo6DYTJUQ0zZ74KmoVvUmGGAuEYe9oCznYcdNePGFilJjQl 5Z0q4oSaYk36zYYXQE9hOqFfxPH1VzRM8KCiDgiOhFsfxLddrpQJpBfi4q+/1W2hliYm4E wFI7HdG225Nt3kBSZaIODkV+w7yi5nE= DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1720174461; h=from:from: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:autocrypt:autocrypt; bh=66SEsZ3Y+YdmjAOiXUK8UPRFf6SUysBbZ0tEFkW2+Oc=; b=McFvS1M8b0DLO/+HB7M6iXoYOkBpl4XizXyPmc+Sq3qJwDLx4PxtUlKeDtN4vEZM1NQPmZ Srx44ZcSENCvaXoKKFOwXFk4h1WO8NsKTBb/2zO37xmaVyUjSJJht3Xt1zUTPVQ9wFvYKQ 5B137oKEOXKAu6lwthg0UiPbdFTqygA= Received: from mail-wm1-f71.google.com (mail-wm1-f71.google.com [209.85.128.71]) by relay.mimecast.com with ESMTP with STARTTLS (version=TLSv1.3, cipher=TLS_AES_256_GCM_SHA384) id us-mta-643-5uadahSoNC2MTgNbb5p3LQ-1; Fri, 05 Jul 2024 06:14:19 -0400 X-MC-Unique: 5uadahSoNC2MTgNbb5p3LQ-1 Received: by mail-wm1-f71.google.com with SMTP id 5b1f17b1804b1-4256849a9f4so10974425e9.3 for ; Fri, 05 Jul 2024 03:14:19 -0700 (PDT) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1720174458; x=1720779258; h=content-transfer-encoding:in-reply-to:organization:autocrypt :content-language:from:references:cc:to:subject:user-agent :mime-version:date:message-id:x-gm-message-state:from:to:cc:subject :date:message-id:reply-to; bh=66SEsZ3Y+YdmjAOiXUK8UPRFf6SUysBbZ0tEFkW2+Oc=; b=n16EtfhMQcSFeyJ1re7DoZOTmQwia9cNqnUsMLBX/iDPoGztPEipYd0rLvDNLnJkK5 Te6vasHQ5mo+4JXE39cWOJmF2D9VMUKJ7Y9Es/LGpNDXzMEHzDFGoCFtUQ2E2KZnznMU 2dXMqzACLHkHHSlqTURmHhNgCaEgr8vdGsQqgKXxUCDa5goRgn3Lgu2MGI59d0PGFdY6 u1QDbppcmEnttt6r0t9BOScUxD04Q08nkEXH+6ywk3UXoCjAq5sf9Klce8hgjK7w8ZbU 7XZmQvdbbazbal7g2Sb+ZuRuIrb2EfPBu8Hzq/EmLMFlVP80sf3boeF99DWFwBIiryWr L03A== X-Forwarded-Encrypted: i=1; AJvYcCXN5FSh9XpQ5f4jZ4rkU7ygw9KSr+YsUkFOU0NBM38QOgxSk7ecmG9/kyCcNXNAyDV+oLtJK3aYU2bGjjJ3OVXQLaU= X-Gm-Message-State: AOJu0YzhsB1MJauhj5nG1K7Epo1OcNsM4NsDxlSH3Sdnr/llnC1+QbaD ltgBdQasG9bqTfzVrXj53BTKnqeAp3h2JAypYdHUxWs46KCo/nNYJZwmWKSHxe+GNw6tTaihoSI LBu3dAN4nAt6ZWa8zyEBqF6SlpFSryd+7+JxpRU4lUAqLQBBT X-Received: by 2002:a05:600c:470e:b0:425:7c5f:1bac with SMTP id 5b1f17b1804b1-4264a3e7a16mr32967465e9.21.1720174458572; Fri, 05 Jul 2024 03:14:18 -0700 (PDT) X-Google-Smtp-Source: AGHT+IHS9P+4VPsangZuGXQQyfG17BAtjT3oNKwGbT6Z9mVJH2NwP5/TCq7FLuzKdIZIZAnR58Qpwg== X-Received: by 2002:a05:600c:470e:b0:425:7c5f:1bac with SMTP id 5b1f17b1804b1-4264a3e7a16mr32967205e9.21.1720174458189; Fri, 05 Jul 2024 03:14:18 -0700 (PDT) Received: from ?IPV6:2003:cb:c702:b500:3ed7:a1c7:447e:2279? (p200300cbc702b5003ed7a1c7447e2279.dip0.t-ipconnect.de. [2003:cb:c702:b500:3ed7:a1c7:447e:2279]) by smtp.gmail.com with ESMTPSA id 5b1f17b1804b1-4265476ce75sm8401445e9.1.2024.07.05.03.14.17 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Fri, 05 Jul 2024 03:14:17 -0700 (PDT) Message-ID: <3aef2bc6-c889-4a9a-b35d-f10ca8a5796a@redhat.com> Date: Fri, 5 Jul 2024 12:14:16 +0200 MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [PATCH v3 1/2] mm: add per-order mTHP split counters To: Barry Song <21cnbao@gmail.com> Cc: Lance Yang , akpm@linux-foundation.org, dj456119@gmail.com, ryan.roberts@arm.com, shy828301@gmail.com, ziy@nvidia.com, libang.li@antgroup.com, baolin.wang@linux.alibaba.com, linux-kernel@vger.kernel.org, linux-mm@kvack.org, Mingzhe Yang References: <20240704012905.42971-1-ioworker0@gmail.com> <20240704012905.42971-2-ioworker0@gmail.com> <677fc803-0bb9-48dc-a1ff-3ca1fb0dea15@redhat.com> From: David Hildenbrand Autocrypt: addr=david@redhat.com; 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 B3JfpUqcWwE7vUaYrHG1nw54pLUoPG6sAA7Mehl3nd4pZUALHwARAQABzSREYXZpZCBIaWxk ZW5icmFuZCA8ZGF2aWRAcmVkaGF0LmNvbT7CwZgEEwEIAEICGwMGCwkIBwMCBhUIAgkKCwQW AgMBAh4BAheAAhkBFiEEG9nKrXNcTDpGDfzKTd4Q9wD/g1oFAl8Ox4kFCRKpKXgACgkQTd4Q 9wD/g1oHcA//a6Tj7SBNjFNM1iNhWUo1lxAja0lpSodSnB2g4FCZ4R61SBR4l/psBL73xktp rDHrx4aSpwkRP6Epu6mLvhlfjmkRG4OynJ5HG1gfv7RJJfnUdUM1z5kdS8JBrOhMJS2c/gPf wv1TGRq2XdMPnfY2o0CxRqpcLkx4vBODvJGl2mQyJF/gPepdDfcT8/PY9BJ7FL6Hrq1gnAo4 3Iv9qV0JiT2wmZciNyYQhmA1V6dyTRiQ4YAc31zOo2IM+xisPzeSHgw3ONY/XhYvfZ9r7W1l pNQdc2G+o4Di9NPFHQQhDw3YTRR1opJaTlRDzxYxzU6ZnUUBghxt9cwUWTpfCktkMZiPSDGd KgQBjnweV2jw9UOTxjb4LXqDjmSNkjDdQUOU69jGMUXgihvo4zhYcMX8F5gWdRtMR7DzW/YE BgVcyxNkMIXoY1aYj6npHYiNQesQlqjU6azjbH70/SXKM5tNRplgW8TNprMDuntdvV9wNkFs 9TyM02V5aWxFfI42+aivc4KEw69SE9KXwC7FSf5wXzuTot97N9Phj/Z3+jx443jo2NR34XgF 89cct7wJMjOF7bBefo0fPPZQuIma0Zym71cP61OP/i11ahNye6HGKfxGCOcs5wW9kRQEk8P9 M/k2wt3mt/fCQnuP/mWutNPt95w9wSsUyATLmtNrwccz63XOwU0EVcufkQEQAOfX3n0g0fZz Bgm/S2zF/kxQKCEKP8ID+Vz8sy2GpDvveBq4H2Y34XWsT1zLJdvqPI4af4ZSMxuerWjXbVWb T6d4odQIG0fKx4F8NccDqbgHeZRNajXeeJ3R7gAzvWvQNLz4piHrO/B4tf8svmRBL0ZB5P5A 2uhdwLU3NZuK22zpNn4is87BPWF8HhY0L5fafgDMOqnf4guJVJPYNPhUFzXUbPqOKOkL8ojk CXxkOFHAbjstSK5Ca3fKquY3rdX3DNo+EL7FvAiw1mUtS+5GeYE+RMnDCsVFm/C7kY8c2d0G NWkB9pJM5+mnIoFNxy7YBcldYATVeOHoY4LyaUWNnAvFYWp08dHWfZo9WCiJMuTfgtH9tc75 7QanMVdPt6fDK8UUXIBLQ2TWr/sQKE9xtFuEmoQGlE1l6bGaDnnMLcYu+Asp3kDT0w4zYGsx 5r6XQVRH4+5N6eHZiaeYtFOujp5n+pjBaQK7wUUjDilPQ5QMzIuCL4YjVoylWiBNknvQWBXS lQCWmavOT9sttGQXdPCC5ynI+1ymZC1ORZKANLnRAb0NH/UCzcsstw2TAkFnMEbo9Zu9w7Kv AxBQXWeXhJI9XQssfrf4Gusdqx8nPEpfOqCtbbwJMATbHyqLt7/oz/5deGuwxgb65pWIzufa N7eop7uh+6bezi+rugUI+w6DABEBAAHCwXwEGAEIACYCGwwWIQQb2cqtc1xMOkYN/MpN3hD3 AP+DWgUCXw7HsgUJEqkpoQAKCRBN3hD3AP+DWrrpD/4qS3dyVRxDcDHIlmguXjC1Q5tZTwNB boaBTPHSy/Nksu0eY7x6HfQJ3xajVH32Ms6t1trDQmPx2iP5+7iDsb7OKAb5eOS8h+BEBDeq 3ecsQDv0fFJOA9ag5O3LLNk+3x3q7e0uo06XMaY7UHS341ozXUUI7wC7iKfoUTv03iO9El5f XpNMx/YrIMduZ2+nd9Di7o5+KIwlb2mAB9sTNHdMrXesX8eBL6T9b+MZJk+mZuPxKNVfEQMQ a5SxUEADIPQTPNvBewdeI80yeOCrN+Zzwy/Mrx9EPeu59Y5vSJOx/z6OUImD/GhX7Xvkt3kq Er5KTrJz3++B6SH9pum9PuoE/k+nntJkNMmQpR4MCBaV/J9gIOPGodDKnjdng+mXliF3Ptu6 3oxc2RCyGzTlxyMwuc2U5Q7KtUNTdDe8T0uE+9b8BLMVQDDfJjqY0VVqSUwImzTDLX9S4g/8 kC4HRcclk8hpyhY2jKGluZO0awwTIMgVEzmTyBphDg/Gx7dZU1Xf8HFuE+UZ5UDHDTnwgv7E th6RC9+WrhDNspZ9fJjKWRbveQgUFCpe1sa77LAw+XFrKmBHXp9ZVIe90RMe2tRL06BGiRZr jPrnvUsUUsjRoRNJjKKA/REq+sAnhkNPPZ/NNMjaZ5b8Tovi8C0tmxiCHaQYqj7G2rgnT0kt WNyWQQ== Organization: Red Hat In-Reply-To: X-Mimecast-Spam-Score: 0 X-Mimecast-Originator: redhat.com Content-Language: en-US Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 8bit X-Rspamd-Server: rspam11 X-Rspamd-Queue-Id: C792E40021 X-Stat-Signature: bt8ibns9fdzhnt69njesbwnjc5x81kyz X-Rspam-User: X-HE-Tag: 1720174461-555350 X-HE-Meta: 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 R6A2/Wq/ dkVHIgHQTPAoHRCLHlfAkfEb36A69rGMEOqu9YmNZ3lO03QUlYH8c2TWe1HybahgCH88MQGd4GyatQI6rxHkzXzhFXTlsdEUOlU2c4lOMiTtqVqJ00OJyoW8X9x+mLKVjEpr/yadFgxj7LndRSJRbvr4db15ZeYziROssO5Faxj4cAcfvUBA90g1tB3JQxMdukC31qm5+To7cjbOi2q2UMiL4K4VALDo2fEagAUcmmxLQwSp6SkqyzEPG+iwSTJHd1y0S/r8BCLJsTNKHjWy+H+dD1zeBXdUwNioH+aVevHLiw3FSW08Xd42SS5WMqHRAJU4Gn/RMq/YnBjHOM/KT1lMj7q/iBmt3SUPBO7nkx/FgSaRS6DSk2tuFHQ== X-Bogosity: Ham, tests=bogofilter, spamicity=0.000002, 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 05.07.24 12:12, Barry Song wrote: > On Fri, Jul 5, 2024 at 9:08 PM David Hildenbrand wrote: >> >>> @@ -3253,8 +3259,9 @@ int split_huge_page_to_list_to_order(struct page *page, struct list_head *list, >>> i_mmap_unlock_read(mapping); >>> out: >>> xas_destroy(&xas); >>> - if (is_thp) >>> + if (order >= HPAGE_PMD_ORDER) >> >> We likely should be using "== HPAGE_PMD_ORDER" here, to be safe for the >> future. > > I feel this might need to be separate since all other places are using > folio_test_pmd_mappable() ? Likely, but as you are moving away from this ... this counter here does and will always only care about HPAGE_PMD_ORDER. -- Cheers, David / dhildenb