From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mx0a-00069f02.pphosted.com (mx0a-00069f02.pphosted.com [205.220.165.32]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 684FA34BA56; Wed, 17 Dec 2025 14:24:47 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=fail smtp.client-ip=205.220.165.32 ARC-Seal:i=2; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1765981490; cv=fail; b=sX6DaYJsA/cU8cJ3DwLUNg1ymu1afSKPdVi5O2z09Ah5iUrE8rLnFRP3Yq3geqmvap60V+ZHUP46KXajoiXNaB93bu90z2cICHX014FLaouLFqqo2qh+w6OCKIi7fpamlmAWS7tiepfz1AQEGXMWN5RKV3eXyG/MjPTRe9Cxd10= ARC-Message-Signature:i=2; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1765981490; c=relaxed/simple; bh=ahLgNxyK/YX1Hp7iANcLGdPUq4uRjxeyOtw3YPvI4E0=; h=Message-ID:Date:Subject:To:Cc:References:From:In-Reply-To: Content-Type:MIME-Version; b=OX2YMlsH0PnFQl7gDNJaPgbj2EnR/PODTSPqXflhFv3AbWftn/fbTilHaQkBX+V5wLGp9WLBmeCb2COKDV5aLMbese4IU5+Z7EzMlM8/+2C6z6P+ZI1SabjqtIiCspJI3B2lhxLyYVSrlGL9tW+H5kisnpWrDwM3ZY51kXWfqOM= ARC-Authentication-Results:i=2; smtp.subspace.kernel.org; dmarc=pass (p=reject dis=none) header.from=oracle.com; spf=pass smtp.mailfrom=oracle.com; dkim=pass (2048-bit key) header.d=oracle.com header.i=@oracle.com header.b=J8oCJVQ+; dkim=pass (1024-bit key) header.d=oracle.onmicrosoft.com header.i=@oracle.onmicrosoft.com header.b=hJzXWtdE; arc=fail smtp.client-ip=205.220.165.32 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=reject dis=none) header.from=oracle.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=oracle.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=oracle.com header.i=@oracle.com header.b="J8oCJVQ+"; dkim=pass (1024-bit key) header.d=oracle.onmicrosoft.com header.i=@oracle.onmicrosoft.com header.b="hJzXWtdE" Received: from pps.filterd (m0246629.ppops.net [127.0.0.1]) by mx0b-00069f02.pphosted.com (8.18.1.11/8.18.1.11) with ESMTP id 5BH6O9vC2184117; Wed, 17 Dec 2025 14:24:23 GMT DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=oracle.com; h=cc :content-transfer-encoding:content-type:date:from:in-reply-to :message-id:mime-version:references:subject:to; s= corp-2025-04-25; bh=dBxmcHb/R/2AZZvasTxMjMf9jKhD+2uE/GBIuxf9tQU=; b= J8oCJVQ+TyUuq6TL4oQ7WFrK+6szANqEDaxqEk/wif+7yVJ5mr0lr6dqNPAeoBcO NjY2tPK13FZu14moPkn8hzd0QL9VugSbd5JpOQx5QaAxjQiL297dgQMavsAMlegn NcY4062SEFXrMkklmrwHeisW2Cm4ahAFNdnAvsYjVFjvkJ2oqFh3BqcOdXk0sMwf pcWF3Ol8WUSMou/cy8+f3Jt899Uz2XxameS+qjpU/2mHWLqiwjWGTfxKnE3aRjc2 sXp5etyHNzeGrbA1HJX4LQqKx7bBdX1k1lCzuTAi6gNIO3UR+YsbaDUgPe9y3fZc O5mWUN0hnSOwVt2gnQ1vXA== Received: from iadpaimrmta01.imrmtpd1.prodappiadaev1.oraclevcn.com (iadpaimrmta01.appoci.oracle.com [130.35.100.223]) by mx0b-00069f02.pphosted.com (PPS) with ESMTPS id 4b1015wxbs-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=OK); Wed, 17 Dec 2025 14:24:23 +0000 (GMT) Received: from pps.filterd (iadpaimrmta01.imrmtpd1.prodappiadaev1.oraclevcn.com [127.0.0.1]) by iadpaimrmta01.imrmtpd1.prodappiadaev1.oraclevcn.com (8.18.1.2/8.18.1.2) with ESMTP id 5BHDZSNu005928; Wed, 17 Dec 2025 14:24:22 GMT Received: from sn4pr0501cu005.outbound.protection.outlook.com (mail-southcentralusazon11011007.outbound.protection.outlook.com [40.93.194.7]) by iadpaimrmta01.imrmtpd1.prodappiadaev1.oraclevcn.com (PPS) with ESMTPS id 4b0xkeku1k-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=OK); Wed, 17 Dec 2025 14:24:22 +0000 ARC-Seal: i=1; a=rsa-sha256; s=arcselector10001; d=microsoft.com; cv=none; b=P1XGcgl4rXmLCvWmpNSvFmeIcfGXuThKxPiTb0B8joSu3evtN10clVj19NaS/zF5RmmleEiwh5wQ/yNPHFUk4XG3tzED61sqGt+4Hvv5ea/ozDtqEF188Nt5qqzHdo8E//hm0R7U0VyxirTGanzDi4PvYP4JMaIHAJUQDxph1nffRIs/4U7UIimf4ix5ou3hBqH2WCsmdFRzlJJmtT0vm1GKmWAxLKGBoxcPrG0mmPcZrzyAGl3tsuImoMyxHHvb8c0dsMatj75cSMG1ummbHM1+5us7RYcjLdBAM54iouIwUlM7YophH4FCCke5DGt724fKMLlYK1ycrxYXNY/sWA== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=microsoft.com; s=arcselector10001; 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=dBxmcHb/R/2AZZvasTxMjMf9jKhD+2uE/GBIuxf9tQU=; b=pP2AuNbl6AdQp2WYV6iLqhARMG04WocQ3nGazb2J0NMt09rPFjwzrRUoVg97N0oYEKhqB2zj8X4OVjekAPEv73r/rARri01ZHfsld6eKI0OBN31G5aRsImCjujqZU8vpfDa9KWLu0rjXz5HkpiMjPs25CrloKYv9aiai4+ak+gJnJM4sPnUC2f1JYDNm6pMRO/91juYe29YsgksNOnBn0vpFAoipkDEohne2CdlFZfdlK1iHV7U6z9t+TPL7sQMKOedRV90XjURLSan/0tmfZiuNgOSMJdQJtVII+SfuDZSNKdzO9r9hmFf5rk4jSddbGdcl2f9/umDcS2oqolkPqA== 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=dBxmcHb/R/2AZZvasTxMjMf9jKhD+2uE/GBIuxf9tQU=; b=hJzXWtdEbQ1yAi4sS9LQZx93HJjHyL6KRA2Tf78LSuL4OCfXgLZyOvgXlvBcQSZw7ycBU7QuS+Y6FhKETH5JPmJPCOiOSHqO505dqXLmK/Nw/V2yhrYq73X+wNoWKMvQ5v3YuUviPdJnbjz6NifCn1Zi9kMv6UnzttsUVRMxV78= Received: from DS7PR10MB4847.namprd10.prod.outlook.com (2603:10b6:5:3aa::5) by DS7PR10MB4959.namprd10.prod.outlook.com (2603:10b6:5:3a0::22) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.9434.6; Wed, 17 Dec 2025 14:24:19 +0000 Received: from DS7PR10MB4847.namprd10.prod.outlook.com ([fe80::f8b0:7eee:d29e:35ed]) by DS7PR10MB4847.namprd10.prod.outlook.com ([fe80::f8b0:7eee:d29e:35ed%7]) with mapi id 15.20.9434.001; Wed, 17 Dec 2025 14:24:19 +0000 Message-ID: Date: Wed, 17 Dec 2025 09:23:27 -0500 User-Agent: Mozilla Thunderbird Subject: Re: [External] : Re: NFS dentry caching regression? was Re: [GIT PULL] Please pull NFS client updates for Linux 6.19 To: Christoph Hellwig , Trond Myklebust Cc: Linus Torvalds , linux-nfs@vger.kernel.org, linux-kernel@vger.kernel.org, Alexander Viro , Christian Brauner , linux-fsdevel@vger.kernel.org References: <36d449e22bf28df97c7717ab4dfb30f100f159a4.camel@kernel.org> Content-Language: en-US From: Anna Schumaker Organization: Oracle Corporation In-Reply-To: Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit X-ClientProxiedBy: CH0PR03CA0191.namprd03.prod.outlook.com (2603:10b6:610:e4::16) To DS7PR10MB4847.namprd10.prod.outlook.com (2603:10b6:5:3aa::5) Precedence: bulk X-Mailing-List: linux-nfs@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-MS-PublicTrafficType: Email X-MS-TrafficTypeDiagnostic: DS7PR10MB4847:EE_|DS7PR10MB4959:EE_ X-MS-Office365-Filtering-Correlation-Id: 37a689f9-3eae-4277-6de8-08de3d77f71b X-MS-Exchange-SenderADCheck: 1 X-MS-Exchange-AntiSpam-Relay: 0 X-Microsoft-Antispam: BCL:0;ARA:13230040|366016|376014|1800799024; X-Microsoft-Antispam-Message-Info: =?utf-8?B?THBTRERKT2NUbVc2cEJXblhkWkV6VGpPTTZ5NDJBY3lFbnlpSVRwamJIWmlr?= =?utf-8?B?TjRqZlBkdHllMVJkREg0TmVVMks5RGkwTUpEdXB4MHRSWUdqQ0FBbFUwNytx?= =?utf-8?B?Wm1jVTV4UEg3ZWxGWG5yRkJ1M1J6b0FnY3M1WFhyemN3QXNUNGdER0FnM0Ri?= =?utf-8?B?SDRmU1B6bDdTT3M1V3h1UGdibWduS0xLNlI4K0Uyek03LzdldHhnei9UZFBk?= =?utf-8?B?VWpTOWVwZGlIc0UvNi9YdlVrVlMrb2JEZnI1VFJxSStGUXE2MTFpbGtuZ1NO?= =?utf-8?B?L3lRKy9pNndzZEI3RkZkdkRvWjlHbk01NnN2SHVCTmJLQjdtblhWMDdLOWJq?= =?utf-8?B?aGVtNUpvY2NUdlhaMSs4UFBGeHRhK1VVRHRZMExHOG4zRU1GeXBiaFZyM1F3?= =?utf-8?B?T3Z2dFZjRmJVQ3pFRkl2QlBqdjNFTGFsQ01uVEY5VzFsTlRZcnE4Z1pOL1o1?= =?utf-8?B?eUw4U0tTemNTMmwvODhGSWVOVlBONHcrK1RKVG1XZmhUYldMOVZoUUJob2o0?= =?utf-8?B?M1FYNEtlSTN6V1hJZVg5QTNjaW9BdDQwQThYQmJtNXhRZlQwWVhmb3FUbzVZ?= =?utf-8?B?b3BMTVZqMmlvNHQ2ajNBR2NmbHZsNCt3RUN3WFo4dVhmM3FPVGRpZ2c3NmdI?= =?utf-8?B?SFp2REFIRGxJaGY3UU9ra29iTWRtTGdSZCt1c0xNWlEwbXpUaGxjZmtEZHZh?= =?utf-8?B?RlZwYXlvY3dOKzFkS1RFU0RYK2FuOWFJWXpGUG9rOVlCbmhtQnJYQjRpOGFh?= =?utf-8?B?UXVwVGJRalhpSkZNVkRIbE9yY21zb1BPdmVtelVRRlBJSTd3WTQyNFpjUG1N?= =?utf-8?B?RXFYelMzbDhNWlBtMUpOcm85RkpCZlp2Mzd1VGZOdS9raUt3UjJEeGhpOTg3?= =?utf-8?B?VmlaZ1pwZGJ2SVRJU3hwcUoxRFNCR2QyWGJxL21WQlcwSExpSk11eUd3UU4z?= =?utf-8?B?RlhveXpBSGo5K3VSazJ5dHZUUDhUa3RsZkhmNEsyNTB4bzROa2lEUFl5S3lw?= =?utf-8?B?ekYwRXgzbUs0Nk9sVTlWbjljVmptazJjSzh3MW5qWFhUZ0IyemlwdlR6RnQr?= =?utf-8?B?cjgvSVhnMmpmWUliZDhpQjRSTy9nbSsxRUdlU2dwNXp2a3BHUmYvLzFUL2dN?= =?utf-8?B?alJEY2NhUXF1NnN1WTRsYzFQeVNsRGVXMnNBY1FlREJjWEJ1MFpnamNBY2NR?= =?utf-8?B?OVBLNmhjUE81Qll4WkZsU1lsUXMxK0FIK3oweGFodjBBTnpXYUlESWtlcTBH?= =?utf-8?B?TERURW9ONUtFQjYvR3dxSHdRcXdJcE1JeU9mOHd5d3hsTFYyU1VYZVpWdEZs?= =?utf-8?B?SWRVMHZoYTM1RGpRMW9rSGg3QkRRcmVlZjRsWmRabzZZVjE1R3k1OUx3TFBV?= =?utf-8?B?bzNoTnlTVFpOOW9rREZjSFVYVlMzQTlXRWh2aFJJcWRBcU5uclNEL3prL0NP?= =?utf-8?B?WTBmOHg0akdxQnljMUNoVWNDbUVyc3lTdmNhNWFITVA0ZElOWHZkZTUyK2wz?= =?utf-8?B?N0M2TDJjaGRjb1ovRmUrcFdRaEoyaW40ZnRUalEwN1lRRW5QdFpwTkdzOFhM?= =?utf-8?B?ZXRiKy9JMnVVMkt1RGYwSGlZbUM4amN3NWtId29HbGo4b1JkaUlkVkV6VWYr?= =?utf-8?B?UDRuOXZjNTVBZzQrejZpS2ZyNjlOSU9TdjgxT3FQWWwzeDdqUlMvZHl5WEhr?= =?utf-8?B?eFc4TGNTdWYwbVpVd0tSRWkrL1ZESmk0MGw4aW02Z1A1eWlnUEpQRUloVVlH?= =?utf-8?B?ME1oY0RHdVcxSUxSVTdNVUtIMEE3bGpFdVEvZlFtSHJaOWpZUkZ3bGlZT2wx?= =?utf-8?B?TDdYL3RTV0Myb3QzcVVlR1UrZUJYWlFGdjA2SW1xYS82ZTJ1WEJ1SjVGbzBP?= =?utf-8?B?cmVFV1RzUG9uUDhhRnRPYldtQUdTc1dkdTZFMUNPN29OQmpKY0Yzdkk0REZu?= =?utf-8?Q?P2TNTNulOZoWsdtjlvKxMbUfcbhhDv7F?= X-Forefront-Antispam-Report: CIP:255.255.255.255;CTRY:;LANG:en;SCL:1;SRV:;IPV:NLI;SFV:NSPM;H:DS7PR10MB4847.namprd10.prod.outlook.com;PTR:;CAT:NONE;SFS:(13230040)(366016)(376014)(1800799024);DIR:OUT;SFP:1101; X-MS-Exchange-AntiSpam-MessageData-ChunkCount: 1 X-MS-Exchange-AntiSpam-MessageData-0: =?utf-8?B?OS9PT1ZOM0hTQnRlOU94TVVmMmhrYm5iajI1ejBTZ09yM0lUeEI4Q0h0V1dK?= =?utf-8?B?TDRBUzFCWWVzR0V6dXZqZ09uREFPdUg1dGwyOFBFNDRSeTJNSElJQ3l6eDlu?= =?utf-8?B?NjRUeHhUNlY3aEFvT1c0RmpjWTZJcnZuaXdhaDVLUDF0dm5UMU9hQVRoMHhJ?= =?utf-8?B?ZkR5K3VlWlZnSTNBNFFlQ3I1NW1GKzlaUUFCT0IrcFYzOUw4ZzVJU1FHaFlu?= =?utf-8?B?K1J2eE1GUS8ydHVrZ1Fmc1hOQVlQajcyRVArWjdWVDFQOVR5TitvMm1TeUxJ?= =?utf-8?B?Uno3ejQ0OEJzTkc2NG1KY1Zqb0k1WnU2OHVOUDk2M3JlVGJ5aVIwejZPMFBS?= =?utf-8?B?ZHhKK09INGpWT255N2ZBNGFUcG1ZREllL1dVdld5VDNXRm1wNm5sSDk1dlZv?= =?utf-8?B?VVlkZ1BMRkhhbDVwdHQ4REZDNDJSUmNBZ0N2UGhUS1gvTEVjVkxIanFlUm5N?= =?utf-8?B?TDlQd1M5UWgrb3RqQms4T1JNSGZqUmFWdGRKSWxTa1lULzdwL0kwREk0clYw?= =?utf-8?B?bjI2MFNIQmc0TkNia2FPOXRjbkYwNCt3K0hIS05CVXlJakIwMmFDNTJXc2Fq?= =?utf-8?B?TlU0MUFlZTNqOW1HSStteUhUN0ZURXFqSGMzNTZyaEpDZ3RlKzAzZGkxdnJm?= =?utf-8?B?K3E4RjhadEh2Y3EvTk9lcmZPNWFNekcxWkViSEk2OENTUVkycEtQQmZJb2kx?= =?utf-8?B?aXNSVXpMdXNidnpsdi9hRzdmLzRJNHVWTG5BQmV2c05neVkyc01ZaCtITW5H?= =?utf-8?B?Rk1QM0ozbnRTTHlBblprLzNyT3ZZdHlBK0dFcS83bGk5NUpvaGRCUkxVQkM3?= =?utf-8?B?MHlqYitLSU1sVW4yWGsxRDlJSXpFOW9qbnVURkVsY3MxMkFPYkUzQzZuWkRC?= =?utf-8?B?TWhYUjZRRlVGS0N5aXRQVFlhanQxWVBhU1oxY2dMSjdjVEx6VzlsbTlKNU5B?= =?utf-8?B?ZElRajIxcitLRlRRUDFkcGp2Syt6TUNNMkRkVkJUY3NFZlVDTXIwK1JTUEhG?= =?utf-8?B?OXZuN1RwdTdOdmFHWXU1ampwdzNrc2VoTEtkREZ1L2ZMRlgxbG44aC84NDVD?= =?utf-8?B?ZE1DM1laS1pTcmdDM002YTVVa0U5aFVjV2NGZmNXdGdJc2Y1czRxZ2FjYVl6?= =?utf-8?B?VGJtTWlXck9Rb3drWkxGUUVFaC9ZOUlDa1c2dlRwQ2ROTHVPenkwdWxSbUVz?= =?utf-8?B?Q2IvdnRuSU5kbFlvaTJjVDlnTUpHc2NWeWtGSEYrcXNUV0pPcTFwdHZ0d1E0?= =?utf-8?B?Q2lrRjE4ZFRvS3hlK0k0Y2p0VzR3U1FUVWxwcHkxMXE4YnZ4M3h2L2hXbmRx?= =?utf-8?B?bk9oM0JPRm5jSWNJSHhzNUx1OFljdCtDR2tMdHRpMEpmQ2E0THA2b0R0TTRI?= =?utf-8?B?YnAwV09WZnF5bzdiaTF6Qittck4zbzlmTVVmT1l6RURLazJua1FsU0srZ294?= =?utf-8?B?NEZXNGk1SkdURUNzK1FOV3RoRHZBOHN2UXd3VlJNTVlaRmlRNHJXWWVZSjFX?= =?utf-8?B?S3FrdVBnb21STjBLL2dRc3RjQ3RvNnIzMlRvcHpMSmc1Qkw3eTR1Z0Q3RDdr?= =?utf-8?B?cmNHQzF4VWV1UGlORDJKZ0dibUp2WE01RE5nbDh2Z25qeFRFTksvVW1ENU5X?= =?utf-8?B?RmMxenBPWjJ3UHN6UlY3SDh2aWhhdW1IM2FGYkNReUJUYUVBYS8rNy91OG1J?= =?utf-8?B?c01BSHpac21IbkN3ZEVRdzF2TmlpYnA4SzI4NWtXbmZveGdvb2lyazVmVlpU?= =?utf-8?B?b29xYnkzekE1K3pDSW9tdGdkK2lPNUQxbjBhWVJPTDJyd3JlWklUNWZPT1FM?= =?utf-8?B?ckk0Zk1Xb0Urd2NlQTlNQW41Yk9ycFlXSmoreTJMYXJnMk1hRVlmdUxXZ3Ri?= =?utf-8?B?eXVMbkJSQ0k5TjR2elFEK3g3YjZNcW8yQ0oxdGlVZU0rb2FRVGk2anpUREVO?= =?utf-8?B?UGxmcTFtb3pYWHFMdzlHSk9YeWlhK0pBRE5mdnhIdm5Ld2VES0NOazNuOVpE?= =?utf-8?B?UDVMMGpRcy9DTTBQYldwRWlYQ1lUanB1Zk5WWnE2UnZqTkhXaUI0VHFoSGZj?= =?utf-8?B?dG5MRzE2YjZJUEhiK3hpQ1IyMmU0QmpiazBZUllhdHlpcVZtQVBEVHVEWVBC?= =?utf-8?B?WHFHYkxoSXM4S0QrYWtoR3AySzNNOHpnTVVWNzJscmRvcERvOFYzMDZoSkhY?= =?utf-8?B?QUE9PQ==?= 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: 37a689f9-3eae-4277-6de8-08de3d77f71b X-MS-Exchange-CrossTenant-AuthSource: DS7PR10MB4847.namprd10.prod.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Internal X-MS-Exchange-CrossTenant-OriginalArrivalTime: 17 Dec 2025 14:24:19.1295 (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: kbo/Cop06x9JyK0wb9t6mpqnJZTOso8XPtl2hClt0DiSX53I2h3ewGe6jC4cELxEZBX2OkGsaWwGBw7j/MrWusL6vlDEww38GKaCLr8rOUI= X-MS-Exchange-Transport-CrossTenantHeadersStamped: DS7PR10MB4959 X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.293,Aquarius:18.0.1121,Hydra:6.1.9,FMLib:17.12.100.49 definitions=2025-12-17_01,2025-12-16_05,2025-10-01_01 X-Proofpoint-Spam-Details: rule=notspam policy=default score=0 phishscore=0 bulkscore=0 malwarescore=0 adultscore=0 mlxlogscore=999 mlxscore=0 spamscore=0 suspectscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.12.0-2510240000 definitions=main-2512170112 X-Proofpoint-GUID: vFHNGkzNuUGsnxW2Vrq4zjdzTqvOdS-c X-Proofpoint-Spam-Details-Enc: AW1haW4tMjUxMjE3MDExMiBTYWx0ZWRfX9mNK6wabncPl nZ2eLMD039LO69WlmI8tbm7w2K2rtXslXFGZmPPGd0qUy1ivUbsVRLSuGYQSMHlIihPLwICu8bq +tQAnBH3mUoQLutrndkkhEbM9kQ2ySLYJ3jCC7n6TxvDQWWLtIOPWcL8Ex8eKhuua5uQKQDky8C 39LbTTxApDuXqKngERS8plUch02R6Vmzezs95U2hlk7EV9qYIkvJu3jHLVlVl4drVee985zWM5j EcWp/gaTyrjBaU/XkSNYDX1+HZosd4YfYaS5YgDsA0d15B1NfyMO7Zs8A5OLU0Vm5i1CYUzjr2i fI+E+oxFZ+2S6G+ZpRclOE4Eg1zU9jFOoc3DL79JOzOqhOsGilEE4DzUVaZSJXlWtQLX5HsYkWy eb7t3aqBlBsTB4/MfQKVRLoWaOgWDs5tf1kyNOuCxJRISxoL4sk= X-Authority-Analysis: v=2.4 cv=GbUaXAXL c=1 sm=1 tr=0 ts=6942bd17 b=1 cx=c_pps a=zPCbziy225d3KhSqZt3L1A==:117 a=zPCbziy225d3KhSqZt3L1A==:17 a=6eWqkTHjU83fiwn7nKZWdM+Sl24=:19 a=z/mQ4Ysz8XfWz/Q5cLBRGdckG28=:19 a=lCpzRmAYbLLaTzLvsPZ7Mbvzbb8=:19 a=dSKWXZCsGpzTyduC:21 a=xqWC_Br6kY4A:10 a=IkcTkHD0fZMA:10 a=wP3pNCr1ah4A:10 a=GoEa3M9JfhUA:10 a=VkNPw1HP01LnGYTKEx00:22 a=L_Lz2tcOO-TRAkzKAYYA:9 a=QEXdDO2ut3YA:10 cc=ntf awl=host:12109 X-Proofpoint-ORIG-GUID: vFHNGkzNuUGsnxW2Vrq4zjdzTqvOdS-c Hi Christoph, On 12/17/25 4:53 AM, Christoph Hellwig wrote: > On Wed, Dec 17, 2025 at 01:32:30AM -0800, Christoph Hellwig wrote: >> Hi all, >> >> the merge of this branch causes NFS lookup operation to shoot up a lot >> for me. And with merge I mean merge - both parent of the merge on their >> own are fine. >> >> With the script below that simulates running python scripts with lots >> of imports that was created to benchmark delegation performance, the >> number of lookups in the measurement period shoots up from 4 to about >> 410000, which is a bit suboptimal. I have no idea how this could >> happen, but it must be related to some sort of pathname lookup changes >> I guess. Other operations looks roughly the same. > > To further pin this down, I rebased the patches from the NFS pull request > on top of the baseline (d358e5254674b70f34c847715ca509e46eb81e6f) and > bisected that. This ends up in: Thanks for reporting this, and for the reproducer script. I'll dig into this today and try to fix what I broke! Anna > > NFS: Shortcut lookup revalidations if we have a directory delegation >