From patchwork Wed Jul 5 19:43:34 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Sidhartha Kumar X-Patchwork-Id: 116402 Return-Path: Delivered-To: ouuuleilei@gmail.com Received: by 2002:a59:9f45:0:b0:3ea:f831:8777 with SMTP id v5csp2098815vqx; Wed, 5 Jul 2023 12:47:34 -0700 (PDT) X-Google-Smtp-Source: APBJJlGFHEEz8YzUu47NcP8w7ESTrIdJBuK0VakEvEFLoAgdbtVpYvBIwv1FGF1QWv39Zi65eXAE X-Received: by 2002:a17:902:d2cd:b0:1b8:1c4f:4f8e with SMTP id n13-20020a170902d2cd00b001b81c4f4f8emr20884493plc.53.1688586454576; Wed, 05 Jul 2023 12:47:34 -0700 (PDT) ARC-Seal: i=2; a=rsa-sha256; t=1688586454; cv=pass; d=google.com; s=arc-20160816; b=K788sn0yU7moTG9Bcq5cNggJvvLTrohfahBN9Rnp4J2/2zlukU2NV9dEBoCgmUb4wx RkCUPr5+hdeffl7NXsZl7RzomKG3oKuf1P7D7H8/QongTD6rmH+TfCSpaHYPxnH+YetO YRAxcDW4s7lHRHeQT6LKWkm1PLo2MM++zf+nYtiGnq0P1RldFSkiRZQFSDzWApLn0BKg KzqgflLxAt9SgBpfUwRRkQKGw2Lsb9Oo0eBh6ZeZ47GfhkFCvCoGOoD0QEoAXpK/OCsf nn+tckX6q0Cp1rYXMexRJGiQG+ACp0QhE0etY2qqZP3P5AMVsx9zJELAjh/V9I8fGSNO kHaQ== ARC-Message-Signature: i=2; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=list-id:precedence:mime-version:content-transfer-encoding :references:in-reply-to:message-id:date:subject:cc:to:from :dkim-signature:dkim-signature; bh=kLaVdzqwzCfX6zaRLf4aFStQzSFEnzVid3+UmntP8l0=; fh=/9bfJsMG+/3rgG7nJ9LKdUdSJTmdx8OfkQbVdkOHqG4=; b=VWoKNnj6ANCrHJF/DmeOLtY3TM5wwMaBg+awVP15NMzbCyutfr3cnzOgMo+SAIbbt/ VMQOJpplwsq28EYbKEYZG5qmcgLURd3B79Kq8bKbWQ0a5J88brjJOL37LzzIjr6n/wCr 7ts2vXDsVb4+pzT9rdFwo6Hy4zsV9pQ3yshYVY6g3vyLJKkot/XjKphcccuuQ0XK/fou 3ZBXvHXej9ZO/XuhWuyVqwegNfX8G8BYqC8XVOHSyjdzkNvNkas5nzrZWWt2BrKJz0Vj pYLNOqs2OMkSMUzYrZmTyMspAzGmIKTiaZ/2Q/jGJgTYtorIlMvpqFJC61dIqr0iNf6J W65Q== ARC-Authentication-Results: i=2; mx.google.com; dkim=pass header.i=@oracle.com header.s=corp-2023-03-30 header.b=x2MzM4Jl; dkim=pass header.i=@oracle.onmicrosoft.com header.s=selector2-oracle-onmicrosoft-com header.b=ZoOzrdxs; arc=pass (i=1 spf=pass spfdomain=oracle.com dkim=pass dkdomain=oracle.com dmarc=pass fromdomain=oracle.com); spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 2620:137:e000::1:20 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org; dmarc=pass (p=NONE sp=NONE dis=NONE) header.from=oracle.com Received: from out1.vger.email (out1.vger.email. [2620:137:e000::1:20]) by mx.google.com with ESMTP id s7-20020a170902b18700b001b69bc74fd7si21814441plr.157.2023.07.05.12.47.19; Wed, 05 Jul 2023 12:47:34 -0700 (PDT) Received-SPF: pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 2620:137:e000::1:20 as permitted sender) client-ip=2620:137:e000::1:20; Authentication-Results: mx.google.com; dkim=pass header.i=@oracle.com header.s=corp-2023-03-30 header.b=x2MzM4Jl; dkim=pass header.i=@oracle.onmicrosoft.com header.s=selector2-oracle-onmicrosoft-com header.b=ZoOzrdxs; arc=pass (i=1 spf=pass spfdomain=oracle.com dkim=pass dkdomain=oracle.com dmarc=pass fromdomain=oracle.com); spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 2620:137:e000::1:20 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org; dmarc=pass (p=NONE sp=NONE dis=NONE) header.from=oracle.com Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S233588AbjGEToj (ORCPT + 99 others); Wed, 5 Jul 2023 15:44:39 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:49556 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229645AbjGEToh (ORCPT ); Wed, 5 Jul 2023 15:44:37 -0400 Received: from mx0a-00069f02.pphosted.com (mx0a-00069f02.pphosted.com [205.220.165.32]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 4DB231732 for ; Wed, 5 Jul 2023 12:44:26 -0700 (PDT) Received: from pps.filterd (m0246617.ppops.net [127.0.0.1]) by mx0b-00069f02.pphosted.com (8.17.1.19/8.17.1.19) with ESMTP id 365J9tk4026780; Wed, 5 Jul 2023 19:44:19 GMT DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=oracle.com; h=from : to : cc : subject : date : message-id : in-reply-to : references : content-transfer-encoding : content-type : mime-version; s=corp-2023-03-30; bh=kLaVdzqwzCfX6zaRLf4aFStQzSFEnzVid3+UmntP8l0=; b=x2MzM4JlbMZ3e0n44T8TgkSzrzLnEMmtVHITBFZ5UED/3IEf4pBfNZwFf/5aHvIUDORV 0q+00paOgBRWo27Cvr2rzPQw9ziTDCJcCuD2qh81YmOUn0naLXjRnIZfBc/YtvJ/Q1Fo Yldm8Zysm2hBCBSsJbgb+1zpuJ18YKcqrqCj4Ela2GSl3ZQpWEtWgzTWZoRDmhZtQ0OE 25yZpajLOajIr8XOZH7dG/ukEWYPGTJIYj/hK1F1vjh1N5vhnhl5ckVPZwiSSWX2VBaH 7L0IdsG1d6yyiuvsdBrjkROmTPhawuYvyWvpH4V9ZQpPBp8FwVXSpDFxB9X6/mQ41Xld LA== Received: from phxpaimrmta03.imrmtpd1.prodappphxaev1.oraclevcn.com (phxpaimrmta03.appoci.oracle.com [138.1.37.129]) by mx0b-00069f02.pphosted.com (PPS) with ESMTPS id 3rjcpuf8rb-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=OK); Wed, 05 Jul 2023 19:44:18 +0000 Received: from pps.filterd (phxpaimrmta03.imrmtpd1.prodappphxaev1.oraclevcn.com [127.0.0.1]) by phxpaimrmta03.imrmtpd1.prodappphxaev1.oraclevcn.com (8.17.1.19/8.17.1.19) with ESMTP id 365IlhXt025202; Wed, 5 Jul 2023 19:44:18 GMT Received: from nam11-co1-obe.outbound.protection.outlook.com (mail-co1nam11lp2177.outbound.protection.outlook.com [104.47.56.177]) by phxpaimrmta03.imrmtpd1.prodappphxaev1.oraclevcn.com (PPS) with ESMTPS id 3rjak6hbcj-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=OK); Wed, 05 Jul 2023 19:44:17 +0000 ARC-Seal: i=1; a=rsa-sha256; s=arcselector9901; d=microsoft.com; cv=none; b=GWBoPySkGpZ8revh/mOSdm+RFBoO0gRWl8BYPv0lU1MG9kOrqGXzkFQ+9zNpQrBLCgc4THm5hlApxz+jyxoGJilE7U2MfwAEj166X/TMlNsFV3gAJamtfPbZQAxfoWYOd+TXHF+DIOvYthDmc09Lx68qtSbRdKW6ssvrjKcGz/h1CcEZI3fc7aM34HtlMRLvXeLawbZW/YLoReVcFyxwhib/4BH706iIrmQ/rWII3oswvJhYzWm2iWq9tDiCH0sJafiriZYOmf/+o0aWR16K1d61G4B5WIHgO3D40C4wOnyHnZ2GCZulYh6NclBG/q0hZE+6HlrB+S4i/q1hOMnLGA== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=microsoft.com; s=arcselector9901; h=From:Date:Subject:Message-ID:Content-Type:MIME-Version:X-MS-Exchange-AntiSpam-MessageData-ChunkCount:X-MS-Exchange-AntiSpam-MessageData-0:X-MS-Exchange-AntiSpam-MessageData-1; bh=kLaVdzqwzCfX6zaRLf4aFStQzSFEnzVid3+UmntP8l0=; b=aJxbo2d6jWXxKHY+Q1B82OFzKK/We+PPmfFlOLTpPf3vNrzjtSGVbcU/QIZNbO+kgLSNt2ICUkL07EVjKnAF07GtdVvQrjEV4vUrzrtvUQc/ibbW9v+HaD4LHt3jlVyYyIGsEoRC5e1nlsZpVCQdKldn706zDidO6w6PXyAh2YPNsdcl3cvS/KqLQVWtVcs3qKHe2UanbYN1i8wf2NzcZ/fu4x69SHtr9jVMekL+7bFj9KSXjVX6wgHO56KQj0S/h3uD22tSH4OGBWlz53GE1mU+A91MNzH8nkPc+a6j8IcmKWzxh5ObR/C/fu8NlmlfiALZWrGAPZxdvBXlI9neUg== ARC-Authentication-Results: i=1; mx.microsoft.com 1; spf=pass smtp.mailfrom=oracle.com; dmarc=pass action=none header.from=oracle.com; dkim=pass header.d=oracle.com; arc=none DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=oracle.onmicrosoft.com; s=selector2-oracle-onmicrosoft-com; h=From:Date:Subject:Message-ID:Content-Type:MIME-Version:X-MS-Exchange-SenderADCheck; bh=kLaVdzqwzCfX6zaRLf4aFStQzSFEnzVid3+UmntP8l0=; b=ZoOzrdxsxKhhQ4QuY+kZskTFBCw2Y1yIzuSLko5AAPb+ifZd9RsYYn4CWf0YZnHuj8IL9a1Tn1EpVg1Hd8bN5R4SaWhAgfCM4xcjaWhJpM+EiOhcRMof6Rxsk2gnRnJmgmGGOtPL0VSVk8Cx8m9D4qlp8g2gWm3YbBCu6WcU4P0= Received: from CH0PR10MB5113.namprd10.prod.outlook.com (2603:10b6:610:c9::8) by PH0PR10MB4533.namprd10.prod.outlook.com (2603:10b6:510:39::24) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.6565.17; Wed, 5 Jul 2023 19:43:57 +0000 Received: from CH0PR10MB5113.namprd10.prod.outlook.com ([fe80::d9c0:689a:147b:ced5]) by CH0PR10MB5113.namprd10.prod.outlook.com ([fe80::d9c0:689a:147b:ced5%5]) with mapi id 15.20.6565.016; Wed, 5 Jul 2023 19:43:57 +0000 From: Sidhartha Kumar To: linux-kernel@vger.kernel.org, linux-mm@kvack.org Cc: akpm@linux-foundation.org, willy@infradead.org, Sidhartha Kumar Subject: [PATCH v2 3/4] mm/memory: convert do_shared_fault() to folios Date: Wed, 5 Jul 2023 12:43:34 -0700 Message-ID: <20230705194335.273790-3-sidhartha.kumar@oracle.com> X-Mailer: git-send-email 2.41.0 In-Reply-To: <20230705194335.273790-1-sidhartha.kumar@oracle.com> References: <20230705194335.273790-1-sidhartha.kumar@oracle.com> X-ClientProxiedBy: BYAPR07CA0103.namprd07.prod.outlook.com (2603:10b6:a03:12b::44) To CH0PR10MB5113.namprd10.prod.outlook.com (2603:10b6:610:c9::8) MIME-Version: 1.0 X-MS-PublicTrafficType: Email X-MS-TrafficTypeDiagnostic: CH0PR10MB5113:EE_|PH0PR10MB4533:EE_ X-MS-Office365-Filtering-Correlation-Id: 8c08156a-b109-4c87-ba1e-08db7d902c17 X-MS-Exchange-SenderADCheck: 1 X-MS-Exchange-AntiSpam-Relay: 0 X-Microsoft-Antispam: BCL:0; X-Microsoft-Antispam-Message-Info: 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 X-Forefront-Antispam-Report: CIP:255.255.255.255;CTRY:;LANG:en;SCL:1;SRV:;IPV:NLI;SFV:NSPM;H:CH0PR10MB5113.namprd10.prod.outlook.com;PTR:;CAT:NONE;SFS:(13230028)(346002)(39860400002)(376002)(366004)(396003)(136003)(451199021)(41300700001)(2906002)(5660300002)(44832011)(8676002)(8936002)(36756003)(86362001)(2616005)(6666004)(478600001)(107886003)(6506007)(1076003)(6512007)(186003)(6486002)(66476007)(4326008)(66946007)(66556008)(316002)(38100700002)(83380400001);DIR:OUT;SFP:1101; X-MS-Exchange-AntiSpam-MessageData-ChunkCount: 1 X-MS-Exchange-AntiSpam-MessageData-0: 2WA5FjZfQeAbPXVALK7BXG+quyKaKu54u5rEXIDAn10DRiWn5DBX5vIgKhm3o5zFYntzut9weUMSsoFfS15/LLCTXsi5VQJBAl/Tk2qk/BPO7oyPs1XgoTTW//t/S0bGQPKmiwkaQOh1jH924k3PPqDDCIo3dne3CMb2MskxwNbavZlAL/TtkE2vXy2vLvgtIt/wmyd/I9imhtuv3d0uzYNLe29tQ8j/E7rdHRqbydVPn/EFuznt/pHsFAwqcjsuGvWJVdZJ8p4gak3M4ysb/l8yg3376CkGGzKAAucW/jMKS1y14ZL1tH+VuJkNjRytUVZZfm/t2OZplfl5CmnrXeUCNf4OIrURKbF32MXrd2TLGenyMTupPv7+WZZUpYjKAR8e9yJYvT3CD9JRAVjRZ5eOKMcqQwJFuQx2eH7FwGbgyujUh/3v9JKo3nHpWHAvzlp0CDYlCdsaKa2HdnqUFg7/eVdf1SBNu44pUcOEbwVDIRabI7WplaAmWu+5maoKRxX82mP1dZhHi3+6KTkUHBTDoxnxI6fra/4IZOawpS7QjbjYZPBnLYLVfokS5IFLSMqXIwcRjlxRJwvCtY609TiF+qYTPV10CcUmw08PYbeza3qggXuh3MqdYr53egRfN/F9U/TJbxpzXYRQ73XnLJ41ktIBbXTtexyTXMFnRBxIjuJy8DDiQ3eYrKRtdGnUkG6/RyF6jNqe1yBx1bmkVZO/QCtgW3/ZcAlCug18weBoLvnIWqvjPzUTBbA7SBgR8YcjDRwnREjUfYbLD+3+vROtEgw0qoz863sMcIr+vCbA9XoZKGLQsY30fUH/xPM8yYeLLrHhQ6+D2gQDEJYGEwuxpEM8Xm/1+m01g860ttwrB2+2RdFLX73TlNFvEPCIjj795AxnJ0jqvCRSQb6h6m4b0sn1jh9pXklVucaR+sEyUstGG4rMXm2cKFTr1+0/e9ssCDo315o4w0T/CEqFUOsRmULlZalqjtBlpbV3YMGgU5MdVBCbdLcKqfhYsOfrGAxYhrBbcVWrx/OAqBA3xkfLQbrxfyWaoffDZACmFJFTPfKHSGWO00k9+ZBJqqr4gXfZL4uBrHyO6X7Xm7T4c7Kx8uNqYgcKUSC8k4V7ouANaV2MnLh96s7d8dJxINmrKdicUwiOCpPja9xVrCsMRSubOPEun9uEfR3siraos0ZIHblxwRmmQsPEf6TVB9sPg6ma6UHfeu5oDqR9E2RA4mzhqYr39pAUc/OaO7RBQRzrpu5qK4ekqDchMIK9W8SZTvA6Z0LKNYNrGHHMRM1y7jCS+Dl8Sdtnk+ZmjTTIhCQ771n6TJB10er8nofzENwLy4YBVs1NsGdsp3JE9whwviYJw2D8QKLMJEbgHTOuC/uSCxfB2f6lJQ7oLbliS7EjQwXZug4TuqwD62FFI4neVI8HENrEqz8NosS2mPGyLoFTF81GqfZnU/7VJ1wEhvunLtKpKa+tv+La4648ogQaufSYNaRHb+bqSxnLPpAQT5TVqlrR9rRpcQ5Iqod85payPov345tTTNAAMAnnp/8z8A1lV81vBN1xni63Ksco1+zrDl0HttpM0xnTj1jWSCSX6goJy8A9vUKliFVcacwDmZI8Ern53zhOD52PNxsTuuw= X-MS-Exchange-AntiSpam-ExternalHop-MessageData-ChunkCount: 1 X-MS-Exchange-AntiSpam-ExternalHop-MessageData-0: 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 X-OriginatorOrg: oracle.com X-MS-Exchange-CrossTenant-Network-Message-Id: 8c08156a-b109-4c87-ba1e-08db7d902c17 X-MS-Exchange-CrossTenant-AuthSource: CH0PR10MB5113.namprd10.prod.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Internal X-MS-Exchange-CrossTenant-OriginalArrivalTime: 05 Jul 2023 19:43:57.3394 (UTC) X-MS-Exchange-CrossTenant-FromEntityHeader: Hosted X-MS-Exchange-CrossTenant-Id: 4e2c6054-71cb-48f1-bd6c-3a9705aca71b X-MS-Exchange-CrossTenant-MailboxType: HOSTED X-MS-Exchange-CrossTenant-UserPrincipalName: TBTQOV3I2JZB7KSkaLLS89HVu2L17r3/k3kd/D7bRLd8VabKWZYc18B36OjuRH2Kup009mqaLjdFK3PLmmd7dbH9TDkktcARWHVq75dA3x8= X-MS-Exchange-Transport-CrossTenantHeadersStamped: PH0PR10MB4533 X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.254,Aquarius:18.0.957,Hydra:6.0.591,FMLib:17.11.176.26 definitions=2023-07-05_11,2023-07-05_01,2023-05-22_02 X-Proofpoint-Spam-Details: rule=notspam policy=default score=0 mlxscore=0 mlxlogscore=999 phishscore=0 malwarescore=0 spamscore=0 bulkscore=0 suspectscore=0 adultscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.12.0-2305260000 definitions=main-2307050180 X-Proofpoint-ORIG-GUID: M9-XHpMHVJl8IMCMoywoSL_mP6h9dm9h X-Proofpoint-GUID: M9-XHpMHVJl8IMCMoywoSL_mP6h9dm9h X-Spam-Status: No, score=-2.8 required=5.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,DKIM_VALID_EF,RCVD_IN_DNSWL_LOW, RCVD_IN_MSPIKE_H5,RCVD_IN_MSPIKE_WL,SPF_HELO_NONE,SPF_NONE, T_SCC_BODY_TEXT_LINE autolearn=ham autolearn_force=no version=3.4.6 X-Spam-Checker-Version: SpamAssassin 3.4.6 (2021-04-09) on lindbergh.monkeyblade.net Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org X-getmail-retrieved-from-mailbox: =?utf-8?q?INBOX?= X-GMAIL-THRID: =?utf-8?q?1770611230643930621?= X-GMAIL-MSGID: =?utf-8?q?1770611230643930621?= Saves three implicit calls to compound_head(). Signed-off-by: Sidhartha Kumar Signed-off-by: Matthew Wilcox (Oracle) --- v2: - move folio initialization after __do_fault() mm/memory.c | 11 +++++++---- 1 file changed, 7 insertions(+), 4 deletions(-) diff --git a/mm/memory.c b/mm/memory.c index fba33fb55a010..ce7826d3f6200 100644 --- a/mm/memory.c +++ b/mm/memory.c @@ -4593,21 +4593,24 @@ static vm_fault_t do_shared_fault(struct vm_fault *vmf) { struct vm_area_struct *vma = vmf->vma; vm_fault_t ret, tmp; + struct folio *folio; ret = __do_fault(vmf); if (unlikely(ret & (VM_FAULT_ERROR | VM_FAULT_NOPAGE | VM_FAULT_RETRY))) return ret; + folio = page_folio(vmf->page); + /* * Check if the backing address space wants to know that the page is * about to become writable */ if (vma->vm_ops->page_mkwrite) { - unlock_page(vmf->page); + folio_unlock(folio); tmp = do_page_mkwrite(vmf); if (unlikely(!tmp || (tmp & (VM_FAULT_ERROR | VM_FAULT_NOPAGE)))) { - put_page(vmf->page); + folio_put(folio); return tmp; } } @@ -4615,8 +4618,8 @@ static vm_fault_t do_shared_fault(struct vm_fault *vmf) ret |= finish_fault(vmf); if (unlikely(ret & (VM_FAULT_ERROR | VM_FAULT_NOPAGE | VM_FAULT_RETRY))) { - unlock_page(vmf->page); - put_page(vmf->page); + folio_unlock(folio); + folio_put(folio); return ret; }