Received: by 2002:a05:6a10:2785:0:0:0:0 with SMTP id ia5csp2928356pxb; Tue, 12 Jan 2021 01:59:15 -0800 (PST) X-Google-Smtp-Source: ABdhPJyU0UJkXzi2GoSvcHmHVprLoGEQ+x9VA81Q002SnLriL+IaWwZTrwakdisizBTgunM9yt/t X-Received: by 2002:a05:6402:2066:: with SMTP id bd6mr2719053edb.211.1610445555013; Tue, 12 Jan 2021 01:59:15 -0800 (PST) ARC-Seal: i=2; a=rsa-sha256; t=1610445555; cv=pass; d=google.com; s=arc-20160816; b=Oh/hXTejp3Qm++ld54c2TQ9cE/sqNbdAdE1S+C5hcsIOWrM98tN1qzxejgGO9tW735 bIQyiv/5P6WIN4hk1vq/23uOYXYuP/dpp/niYRJkwQ+nhIXnA2ZdrVGq2cPfaVQByIx1 RW+8Snurfu0ytDJOIxyqM2JHLSWQze894fiK9sG5V4juIdvj/fM37IZkzQVDiL3bLf8R v67+Q9L1tIl6s4WsUddnPFg9BK7/Pwx8FP3tp1IbnJVsWCB2QfQEy+dNEmGaCIUkO511 Wa9Bnz+YFsD7v7+Rg+3uIMaHArGNcw3DRqVRBw/ifK0jw1eiCqOcgswmac1idF0thwXd xZ3g== 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 :content-id:content-language:accept-language:in-reply-to:references :message-id:date:thread-index:thread-topic:subject:cc:to:from :dkim-signature:dkim-signature; bh=zFMRE4e3YXtmxVV+kv7RMcq0Bj1T3cKBLCLEhJouEUg=; b=hRAzMNWP2vY0YR0y5ic2y7BdPOFGMWhnaTw9UqmzrC+ANJ2wfy2Xs0lLK5J6U1rmeu sLuf0EZTicmv6M/HHK8RdP+AEkrc5THOkktK+WKTcuJPeIm5hEPkZ2bYC8XxAkequCTt GyIrcoxTB4cZ5LmjuVCsRUNstMH6mRj/deionxwlsQshxZpztRi+TUxf/sG2R8jLPD6n pUwLBw5JtObcDoTVAZMJr5kOa7oPMzHxy9VDCkAlvtW3MqlR13WABp5leSj2/cf4P1rz Rt9lHYtIVgBE3W6Qw3jOMeN39GUsly6rY2FHPFlS+MEoYS5PNqz5u/GPUnb0vI3eKG5l cG0A== ARC-Authentication-Results: i=2; mx.google.com; dkim=pass header.i=@fb.com header.s=facebook header.b="CtAL/EOi"; dkim=pass header.i=@fb.onmicrosoft.com header.s=selector2-fb-onmicrosoft-com header.b=jVbVE6kb; arc=pass (i=1 spf=pass spfdomain=fb.com dkim=pass dkdomain=fb.com dmarc=pass fromdomain=fb.com); spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org; dmarc=pass (p=REJECT sp=REJECT dis=NONE) header.from=fb.com Return-Path: Received: from vger.kernel.org (vger.kernel.org. [23.128.96.18]) by mx.google.com with ESMTP id ca9si885496ejb.353.2021.01.12.01.58.51; Tue, 12 Jan 2021 01:59:14 -0800 (PST) Received-SPF: pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) client-ip=23.128.96.18; Authentication-Results: mx.google.com; dkim=pass header.i=@fb.com header.s=facebook header.b="CtAL/EOi"; dkim=pass header.i=@fb.onmicrosoft.com header.s=selector2-fb-onmicrosoft-com header.b=jVbVE6kb; arc=pass (i=1 spf=pass spfdomain=fb.com dkim=pass dkdomain=fb.com dmarc=pass fromdomain=fb.com); spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org; dmarc=pass (p=REJECT sp=REJECT dis=NONE) header.from=fb.com Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S2390964AbhALAYk (ORCPT + 99 others); Mon, 11 Jan 2021 19:24:40 -0500 Received: from mx0a-00082601.pphosted.com ([67.231.145.42]:29630 "EHLO mx0a-00082601.pphosted.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S2390777AbhAKWvL (ORCPT ); Mon, 11 Jan 2021 17:51:11 -0500 Received: from pps.filterd (m0044010.ppops.net [127.0.0.1]) by mx0a-00082601.pphosted.com (8.16.0.43/8.16.0.43) with SMTP id 10BMijwB023274; Mon, 11 Jan 2021 14:50:08 -0800 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=fb.com; h=from : to : cc : subject : date : message-id : references : in-reply-to : content-type : content-id : content-transfer-encoding : mime-version; s=facebook; bh=zFMRE4e3YXtmxVV+kv7RMcq0Bj1T3cKBLCLEhJouEUg=; b=CtAL/EOiZr71Uk312QzD0vjH0Ujaf4dC4awtuLPa/C2clQtBMKBO9GTzSMGX7AZxGSB6 IDRVBAiXL04F1U4TsEJ4l32Gu6bbviD945VVIDl10eastvIgcBmkmqdBdvB+IqvD+gr8 jcO/WG4IdbntSl4d4kHV8+iyuH7vp3erXrk= Received: from mail.thefacebook.com ([163.114.132.120]) by mx0a-00082601.pphosted.com with ESMTP id 35ywduqgve-4 (version=TLSv1.2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128 verify=NOT); Mon, 11 Jan 2021 14:50:08 -0800 Received: from NAM11-CO1-obe.outbound.protection.outlook.com (100.104.98.9) by o365-in.thefacebook.com (100.104.94.198) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.1.1979.3; Mon, 11 Jan 2021 14:50:07 -0800 ARC-Seal: i=1; a=rsa-sha256; s=arcselector9901; d=microsoft.com; cv=none; b=kZLDOi5oZhVw6Nq/Fz8fjpxXa0U4Ifjgs7D6fCRZ1IeQ3TEZXJC+I3XfD3N4R9jp0pA/Ljc7boHNfJ0e5YUAGio2B/0NO61ducfBr1+lO64QhBWncnFkvI43GoGkRma9cDodykffD84SvWaNYEIXYa3MIPUnKHAhFL+2OcS4j5c2YXE2T2HCdzf8XBPGyoOKFKAI1SQ7O0x3Zz3ylMbKJGY2HZoI31M/xRZI54Fgnyillm46V6wMu/BSHfoh1AvlqpUXQh/3n6PlqXxQOT0yvqLoQAZlyHifwyzB85X5zJwYJ7SODKBR7b4OO2HNmp2LSOW/4ApNHI5zQXEI+qa+eQ== 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-SenderADCheck; bh=zFMRE4e3YXtmxVV+kv7RMcq0Bj1T3cKBLCLEhJouEUg=; b=XpjCO+3cuMikyRxFfjkA8xoa2bRM4FT9+7F1IXD094QJGR5embxly/sk0t+Whbzvdj4SloHd07WeZzKSH7voot5FsdRum0VxzjtQd2AuK9w4Q1yBtcDhZfpPBvU2o/SAFy5pwaWDyk/0y+RP2z+d65voU9TsElmsn3FSaL/IcrY72E8KRBPShVm+Wj11NOhxUdVOm5RVfjdT3ljZI+OVefc9+b6WJ2F2rOU1GPV5AqPV5rHDEaUH8Y0T6VpsuUXsjSptSrse3KWBqIEidyZZs/hYSSO5KFtMHbd5lMDYItG+egNIKAZemBcuCM5Wf4JZlr4PM3E3uI8zYrf4940gRg== ARC-Authentication-Results: i=1; mx.microsoft.com 1; spf=pass smtp.mailfrom=fb.com; dmarc=pass action=none header.from=fb.com; dkim=pass header.d=fb.com; arc=none DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=fb.onmicrosoft.com; s=selector2-fb-onmicrosoft-com; h=From:Date:Subject:Message-ID:Content-Type:MIME-Version:X-MS-Exchange-SenderADCheck; bh=zFMRE4e3YXtmxVV+kv7RMcq0Bj1T3cKBLCLEhJouEUg=; b=jVbVE6kbHrl8EMxkKNAM5vvmkUAFjMo0ipFktcLEi754D6rOjJa+xxTUU8Pjb30ANY/eWIm6vJiSFqV7HdNyUmXt7C9gjGfIdMZgTxAPQIjmSuJFVs1OQ/cltIjroSz0maQPPfAsD8MyXUfYqJnTVKlPSnF7wXLJt3l1mRL6CEA= Received: from BYAPR15MB2999.namprd15.prod.outlook.com (2603:10b6:a03:fa::12) by SJ0PR15MB4204.namprd15.prod.outlook.com (2603:10b6:a03:2c8::9) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.3742.6; Mon, 11 Jan 2021 22:50:06 +0000 Received: from BYAPR15MB2999.namprd15.prod.outlook.com ([fe80::c97:58e4:ee9:1dc0]) by BYAPR15MB2999.namprd15.prod.outlook.com ([fe80::c97:58e4:ee9:1dc0%7]) with mapi id 15.20.3742.012; Mon, 11 Jan 2021 22:50:06 +0000 From: Song Liu To: KP Singh CC: Yonghong Song , bpf , Networking , open list , "mingo@redhat.com" , Peter Zijlstra , Alexei Starovoitov , Daniel Borkmann , Andrii Nakryiko , John Fastabend , Kernel Team , Hao Luo Subject: Re: [PATCH bpf-next 2/4] selftests/bpf: add non-BPF_LSM test for task local storage Thread-Topic: [PATCH bpf-next 2/4] selftests/bpf: add non-BPF_LSM test for task local storage Thread-Index: AQHW5hZK9xMR4omnHkq1KgYEe27pC6oistUAgAAD0gCAAFVhgA== Date: Mon, 11 Jan 2021 22:50:06 +0000 Message-ID: <9D7ECABD-4964-431E-AF33-AB34F3F35183@fb.com> References: <20210108231950.3844417-1-songliubraving@fb.com> <20210108231950.3844417-3-songliubraving@fb.com> <4eac4156-9c81-ff4d-46f5-d45d9d575a16@fb.com> In-Reply-To: Accept-Language: en-US Content-Language: en-US X-MS-Has-Attach: X-MS-TNEF-Correlator: x-mailer: Apple Mail (2.3654.40.0.2.32) authentication-results: kernel.org; dkim=none (message not signed) header.d=none;kernel.org; dmarc=none action=none header.from=fb.com; x-originating-ip: [2620:10d:c090:400::5:f14a] x-ms-publictraffictype: Email x-ms-office365-filtering-correlation-id: 40b56f84-2795-41ac-8b3b-08d8b6833d99 x-ms-traffictypediagnostic: SJ0PR15MB4204: x-ms-exchange-transport-forked: True x-microsoft-antispam-prvs: x-fb-source: Internal x-ms-oob-tlc-oobclassifiers: OLM:5516; x-ms-exchange-senderadcheck: 1 x-microsoft-antispam: BCL:0; x-microsoft-antispam-message-info: 5CBZ20NJqAd3YZ4PWBIBbgnYwGpOx5poGcfX4jq4CIp/hNgQpwwE+WUwbxYdSsIa/O079YlqmfYFJFcBHyV8u568XBVvNsNomYP7TrhZ2I62XJjbmtWYPB5obB7l3JpZFngGgS8v19rLMsSozrPF22f5dPFxqnEcfee68FX+Pr7YoIGi9htl+YRChdxORSw915uBnZ1yVvouHxVh5CyWiK/pcZeyshu1xWAt7X064IstH5uCkEwUBiP88a31rQs7fHwJ5PHbycm7kmWxTC/6ejqXxSXoKBEYWCngowjNTzZBPdi8J1XprN/lF//WtIRvIiJHGCJjz5rio+GAAl/8LY2yqlkf3HBSgFQn6TQyxhD19pLBwNOQ3dbZiLO9O3kuLFMHK8Wv/G6yzZzBRo8pGHb0VcjHkCfZyxPZpDrUqx0agIvUFtnhs7DvtI4u/LmE x-forefront-antispam-report: CIP:255.255.255.255;CTRY:;LANG:en;SCL:1;SRV:;IPV:NLI;SFV:NSPM;H:BYAPR15MB2999.namprd15.prod.outlook.com;PTR:;CAT:NONE;SFS:(366004)(39860400002)(346002)(376002)(396003)(136003)(316002)(66556008)(64756008)(71200400001)(66446008)(66476007)(76116006)(86362001)(91956017)(54906003)(6916009)(4744005)(2616005)(4326008)(186003)(5660300002)(66946007)(2906002)(6506007)(53546011)(478600001)(8676002)(6486002)(7416002)(6512007)(33656002)(8936002)(36756003)(45980500001);DIR:OUT;SFP:1102; x-ms-exchange-antispam-messagedata: =?us-ascii?Q?KhEeAjV8jFSXbM09XsoTtp1TS25DFkMlxUmZXt7CjTC2K0tUu2XloJAJW6U1?= =?us-ascii?Q?2Xia3bQpa8RnqksQzunEvRXvvxxVXR/9EkrrSFE+nMObCFkuXN9LzHSE71iy?= =?us-ascii?Q?oncYt+fiCAoeauk9a42y8KbRmGO8WfRHIEMiiM4vIGZ8eNNP4HGpPEHSCWKz?= =?us-ascii?Q?9Vazvim+vWewMTDytUct1lNIabWGCJYw7SWluuhTdNq++dyS3Fkf/Jqd1E+7?= =?us-ascii?Q?9PFmEJWgSZ8p0XOlT2NPl1ZpMzVY0DiK0NtkFoUTbrID3Dcv6EHNvaODoTl2?= =?us-ascii?Q?ztwJjo9GychyIU0uPUAJrxII2Cxkcwrqa3bihzF7BR6fy1fvokK5DVIgjZ/e?= =?us-ascii?Q?IYsTRltBIoJrePiJgjLgmSMbqP78jxeJKaetAuKjT05LcyE5mYP6qipYEP+y?= =?us-ascii?Q?qanJLxhS17ITAJgDG4fSzvSqAYpinc5bGw3LwPMcIu5YDi3y4QK2ToBusEXY?= =?us-ascii?Q?5alw+cDyuAaLAW+gaNf87orvqHEbaAfKVanLppCfCDHVU1Lwo/uLGkfkMm0X?= =?us-ascii?Q?OX4jIJmGzfB2TRm2FuPIJbWaTgLRDgo8HBuh9mIC26+UAU8BEh7pSPE5YWMe?= =?us-ascii?Q?0HfCM3HKvgrZuYPKSCA/ylOGlRz0mgIqNDEse8FBReiJ6B2Dszo+aOb2vSe2?= =?us-ascii?Q?zbD7Tq1mjimQ7HA2WJCpNZE/X9hTIs7Izpw+lA7m2adoVUEm4LnuQIHQJ0I/?= =?us-ascii?Q?Ds007pkYjQe79qnvPgJ5toSYSNm5yI0YYdkoWealDMPNsS+hSpOoUdr1B53M?= =?us-ascii?Q?TpbZl2y29ddimzAg4ew1J0IvVlnRlli49gAIccEi0s9kpHrsMZ7llxLnckQY?= =?us-ascii?Q?PjRnrc97dxDFzA0voOBLzueyC3rYPRMaTbhd6/OAYqTqKMwPbZle/U5PoMwN?= =?us-ascii?Q?yiCHOCaz5XifsPAo5lilMis5jbhZzVLFPGH47G6T1+h+wW8dI80wuoKql2X/?= =?us-ascii?Q?5vIJVX1wTY1OByo/yD7yHhv+7YnGxkXSFrTZzsTSQ4H8Ct/jMiMS4R/FwRwB?= =?us-ascii?Q?QCyYFdpDDy2AzKEzTMi6RgUV3tGBPT74p5deF/JAkBHifg0=3D?= Content-Type: text/plain; charset="us-ascii" Content-ID: Content-Transfer-Encoding: quoted-printable MIME-Version: 1.0 X-MS-Exchange-CrossTenant-AuthAs: Internal X-MS-Exchange-CrossTenant-AuthSource: BYAPR15MB2999.namprd15.prod.outlook.com X-MS-Exchange-CrossTenant-Network-Message-Id: 40b56f84-2795-41ac-8b3b-08d8b6833d99 X-MS-Exchange-CrossTenant-originalarrivaltime: 11 Jan 2021 22:50:06.2329 (UTC) X-MS-Exchange-CrossTenant-fromentityheader: Hosted X-MS-Exchange-CrossTenant-id: 8ae927fe-1255-47a7-a2af-5f3a069daaa2 X-MS-Exchange-CrossTenant-mailboxtype: HOSTED X-MS-Exchange-CrossTenant-userprincipalname: Unzp7iFC9oyoq+la704ccDA/9KbcOBgUlmGGwJiWfzrSWaNsqQk4c9O44FGmqTKeZSqOBe41x9lzmg1xpFsv1Q== X-MS-Exchange-Transport-CrossTenantHeadersStamped: SJ0PR15MB4204 X-OriginatorOrg: fb.com X-Proofpoint-Virus-Version: vendor=fsecure engine=2.50.10434:6.0.343,18.0.737 definitions=2021-01-11_34:2021-01-11,2021-01-11 signatures=0 X-Proofpoint-Spam-Details: rule=fb_default_notspam policy=fb_default score=0 mlxlogscore=999 malwarescore=0 lowpriorityscore=0 bulkscore=0 suspectscore=0 adultscore=0 impostorscore=0 clxscore=1015 mlxscore=0 priorityscore=1501 spamscore=0 phishscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.12.0-2009150000 definitions=main-2101110128 X-FB-Internal: deliver Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org > On Jan 11, 2021, at 9:44 AM, KP Singh wrote: >=20 > On Mon, Jan 11, 2021 at 6:31 PM Yonghong Song wrote: >>=20 >>=20 >>=20 >> On 1/8/21 3:19 PM, Song Liu wrote: >>> Task local storage is enabled for tracing programs. Add a test for it >>> without CONFIG_BPF_LSM. >=20 > Can you also explain what the test does in the commit log? >=20 > It would also be nicer to have a somewhat more realistic selftest which > represents a simple tracing + task local storage use case. Let me try to make this more realistic.=20 Thanks, Song [...]