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 26B60D44165 for ; Tue, 19 Nov 2024 14:35:41 +0000 (UTC) Received: by kanga.kvack.org (Postfix) id B1B686B0096; Tue, 19 Nov 2024 09:35:40 -0500 (EST) Received: by kanga.kvack.org (Postfix, from userid 40) id ACBA96B00A1; Tue, 19 Nov 2024 09:35:40 -0500 (EST) X-Delivered-To: int-list-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix, from userid 63042) id 9454F6B00A2; Tue, 19 Nov 2024 09:35:40 -0500 (EST) 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 6B6F66B0096 for ; Tue, 19 Nov 2024 09:35:40 -0500 (EST) Received: from smtpin04.hostedemail.com (a10.router.float.18 [10.200.18.1]) by unirelay03.hostedemail.com (Postfix) with ESMTP id 22F63A0514 for ; Tue, 19 Nov 2024 14:35:40 +0000 (UTC) X-FDA: 82803092232.04.CDC7B8E Received: from us-smtp-delivery-124.mimecast.com (us-smtp-delivery-124.mimecast.com [170.10.129.124]) by imf21.hostedemail.com (Postfix) with ESMTP id 14C101C001A for ; Tue, 19 Nov 2024 14:34:01 +0000 (UTC) Authentication-Results: imf21.hostedemail.com; dkim=pass header.d=redhat.com header.s=mimecast20190719 header.b=UxxdH3Hc; spf=pass (imf21.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=1732026693; 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=JKx890WpfnsU0/gagsqAu/7bg4tMVV8GUtdV3TL7xsM=; b=Jep9V/ppHB+8ox4dfag1J3/E/6IrWsuxOdMW04eJgq9jdISKkky09a1dvdyHc2hbjTQy0Q rSreF5uIeLUGw9N8r488rxnz/xRAAeecooe3xs03phzrGzH431vvSumbu00DA5nJgVH7lg TPnvtUfGXqd7ZQhjFO4T1+Uc6lrqinA= ARC-Authentication-Results: i=1; imf21.hostedemail.com; dkim=pass header.d=redhat.com header.s=mimecast20190719 header.b=UxxdH3Hc; spf=pass (imf21.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=1732026693; a=rsa-sha256; cv=none; b=jjo6vqnfhUqfxN+7r7yPC7KQ0n+DxItjdvhQcRaU/4QBTtuFUiCQwGWsOQCv/PXIx310Oh ItWZXdug4ozJqqY4rRmEtL2PdXliacjythIOA3xYVA3GUwxuO9vm84xHoQNEjP2PZ3knjK yPAFy36RBFlAoILbzilx1BKnrfmY8mQ= DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1732026936; 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=JKx890WpfnsU0/gagsqAu/7bg4tMVV8GUtdV3TL7xsM=; b=UxxdH3Hc3xxHGVkKbPSchB0vztmPosD97VhIDHDqHVXarC/0h9H49NOP/0OFHg3a8+u9ty Vyq7ZcylmRcPVgCtWq+3oyr0AA+RxELHUywJrzcjog6iFM3FGYTVJPXgKRA/P+90V5/iMS V+1Tz51CovcItTC3pvDfB7y1u7uMB7Y= Received: from mail-wm1-f69.google.com (mail-wm1-f69.google.com [209.85.128.69]) by relay.mimecast.com with ESMTP with STARTTLS (version=TLSv1.3, cipher=TLS_AES_256_GCM_SHA384) id us-mta-31-ldg-6KN5P8-ADSBCURh2cg-1; Tue, 19 Nov 2024 09:35:35 -0500 X-MC-Unique: ldg-6KN5P8-ADSBCURh2cg-1 X-Mimecast-MFC-AGG-ID: ldg-6KN5P8-ADSBCURh2cg Received: by mail-wm1-f69.google.com with SMTP id 5b1f17b1804b1-43151e4ef43so28982005e9.3 for ; Tue, 19 Nov 2024 06:35:35 -0800 (PST) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1732026934; x=1732631734; 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=JKx890WpfnsU0/gagsqAu/7bg4tMVV8GUtdV3TL7xsM=; b=cvzk5nnqUu+ep+i3RrPMBDt4IrA+3szR/8usN3TAqfXWr32nott4Wob7PTXdaP4AcQ CGO2y+j/rQWe+hSuxAlcnVUo8oGrukI3jVFQtn3VtKLRyM+2UtFQy28Npy4Mi9bjKtWf EJsZKOGzcI9YrVU4yO0te7G9/HMcRpQttsRy81Br0B9JQl9uSCrLwZq+QS96+NJqlwtf lMzUEuzayvuEZw2WfzPovWjx+emu2jZTIKKnZQsxL+6FRBeDA7SZxnn9PXHoTHG+E5Hf 4Gr1wX5iaulEG+frHfDBZ6JVKlX5XsgziEKutVRt1An6WmVHhOV1ZyUOdFhC3PfBxpeM IqYQ== X-Forwarded-Encrypted: i=1; AJvYcCUvfc8wTL4334NlvyFkYkIitKvhCUCntIlqacMqQt86+ChOKALzOOGcI5ifpm2LAoIIYFbmZeftHw==@kvack.org X-Gm-Message-State: AOJu0YxmOFlFEBKYTfCeVMunTPt5E6VbKVNMN/0Rra/h8rbTQQwpoKOl w4B8LYuJZ2zkWw9jt/dON012eBIRX2gtKC12RqdnJeMoMsIJEFoJ14ZaKT9HDHeiR2kXYPr342t /SlqCyeA30ZqsJKQSWbQuHGhfbA2046YjPHhJPVYd7jdE8WN1 X-Received: by 2002:a05:600c:5492:b0:431:5d89:646e with SMTP id 5b1f17b1804b1-432df792df0mr123888945e9.32.1732026934045; Tue, 19 Nov 2024 06:35:34 -0800 (PST) X-Google-Smtp-Source: AGHT+IGWNHgoarbx3hUcQezjymarz8pGO7PL0597K0482rDOTfSC0yJPFVaW9DwAPbLFRBl1lqybvA== X-Received: by 2002:a05:600c:5492:b0:431:5d89:646e with SMTP id 5b1f17b1804b1-432df792df0mr123888685e9.32.1732026933695; Tue, 19 Nov 2024 06:35:33 -0800 (PST) Received: from ?IPV6:2003:cb:c74b:d000:3a9:de5c:9ae6:ccb3? (p200300cbc74bd00003a9de5c9ae6ccb3.dip0.t-ipconnect.de. [2003:cb:c74b:d000:3a9:de5c:9ae6:ccb3]) by smtp.gmail.com with ESMTPSA id 5b1f17b1804b1-432dab80582sm195595185e9.19.2024.11.19.06.35.31 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Tue, 19 Nov 2024 06:35:33 -0800 (PST) Message-ID: Date: Tue, 19 Nov 2024 15:35:31 +0100 MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [PATCH v2] mm: Respect mmap hint address when aligning for THP To: Kalesh Singh Cc: kernel-team@android.com, android-mm@google.com, Andrew Morton , Vlastimil Babka , Yang Shi , Rik van Riel , Ryan Roberts , Suren Baghdasaryan , Minchan Kim , Hans Boehm , Lokesh Gidra , stable@vger.kernel.org, "Liam R. Howlett" , Lorenzo Stoakes , Jann Horn , Yang Shi , linux-mm@kvack.org, linux-kernel@vger.kernel.org References: <20241118214650.3667577-1-kaleshsingh@google.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: <20241118214650.3667577-1-kaleshsingh@google.com> X-Mimecast-Spam-Score: 0 X-Mimecast-MFC-PROC-ID: 7KycuaczKVc_QsOCvm-i8XXOog4UYnHEtIUBLMCD4HU_1732026934 X-Mimecast-Originator: redhat.com Content-Language: en-US Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit X-Rspamd-Server: rspam06 X-Rspamd-Queue-Id: 14C101C001A X-Stat-Signature: 94jrs9i7s9sxqyssnztne165prbgacnd X-Rspam-User: X-HE-Tag: 1732026841-845188 X-HE-Meta: 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 MINAqL73 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 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 18.11.24 22:46, Kalesh Singh wrote: > Commit efa7df3e3bb5 ("mm: align larger anonymous mappings on THP > boundaries") updated __get_unmapped_area() to align the start address > for the VMA to a PMD boundary if CONFIG_TRANSPARENT_HUGEPAGE=y. > > It does this by effectively looking up a region that is of size, > request_size + PMD_SIZE, and aligning up the start to a PMD boundary. > > Commit 4ef9ad19e176 ("mm: huge_memory: don't force huge page alignment > on 32 bit") opted out of this for 32bit due to regressions in mmap base > randomization. > > Commit d4148aeab412 ("mm, mmap: limit THP alignment of anonymous > mappings to PMD-aligned sizes") restricted this to only mmap sizes that > are multiples of the PMD_SIZE due to reported regressions in some > performance benchmarks -- which seemed mostly due to the reduced spatial > locality of related mappings due to the forced PMD-alignment. > > Another unintended side effect has emerged: When a user specifies an mmap > hint address, the THP alignment logic modifies the behavior, potentially > ignoring the hint even if a sufficiently large gap exists at the requested > hint location. > > Example Scenario: > > Consider the following simplified virtual address (VA) space: > > ... > > 0x200000-0x400000 --- VMA A > 0x400000-0x600000 --- Hole > 0x600000-0x800000 --- VMA B > > ... > > A call to mmap() with hint=0x400000 and len=0x200000 behaves differently: > > - Before THP alignment: The requested region (size 0x200000) fits into > the gap at 0x400000, so the hint is respected. > > - After alignment: The logic searches for a region of size > 0x400000 (len + PMD_SIZE) starting at 0x400000. > This search fails due to the mapping at 0x600000 (VMA B), and the hint > is ignored, falling back to arch_get_unmapped_area[_topdown](). > > In general the hint is effectively ignored, if there is any > existing mapping in the below range: > > [mmap_hint + mmap_size, mmap_hint + mmap_size + PMD_SIZE) > > This changes the semantics of mmap hint; from ""Respect the hint if a > sufficiently large gap exists at the requested location" to "Respect the > hint only if an additional PMD-sized gap exists beyond the requested size". > > This has performance implications for allocators that allocate their heap > using mmap but try to keep it "as contiguous as possible" by using the > end of the exisiting heap as the address hint. With the new behavior > it's more likely to get a much less contiguous heap, adding extra > fragmentation and performance overhead. > > To restore the expected behavior; don't use thp_get_unmapped_area_vmflags() > when the user provided a hint address, for anonymous mappings. > > Note: As, Yang Shi, pointed out: the issue still remains for filesystems > which are using thp_get_unmapped_area() for their get_unmapped_area() op. > It is unclear what worklaods will regress for if we ignore THP alignment > when the hint address is provided for such file backed mappings -- so this > fix will be handled separately. > > Cc: Andrew Morton > Cc: Vlastimil Babka > Cc: Yang Shi > Cc: Rik van Riel > Cc: Ryan Roberts > Cc: Suren Baghdasaryan > Cc: Minchan Kim > Cc: Hans Boehm > Cc: Lokesh Gidra > Cc: > Fixes: efa7df3e3bb5 ("mm: align larger anonymous mappings on THP boundaries") > Signed-off-by: Kalesh Singh > Reviewed-by: Rik van Riel > Reviewed-by: Vlastimil Babka > --- LGTM. Hopefully that's the end of this story :) Reviewed-by: David Hildenbrand -- Cheers, David / dhildenb