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 X-Spam-Level: X-Spam-Status: No, score=-1.1 required=3.0 tests=DKIM_SIGNED,DKIM_VALID, DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SPF_HELO_NONE, SPF_PASS autolearn=no autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id EA400C48BD5 for ; Sat, 6 Jul 2019 17:24:40 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id C624420836 for ; Sat, 6 Jul 2019 17:24:40 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (1024-bit key) header.d=fb.com header.i=@fb.com header.b="D2wUijhS"; dkim=pass (1024-bit key) header.d=fb.onmicrosoft.com header.i=@fb.onmicrosoft.com header.b="VIJu4OZz" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727054AbfGFRYk (ORCPT ); Sat, 6 Jul 2019 13:24:40 -0400 Received: from mx0a-00082601.pphosted.com ([67.231.145.42]:44970 "EHLO mx0a-00082601.pphosted.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726915AbfGFRYj (ORCPT ); Sat, 6 Jul 2019 13:24:39 -0400 Received: from pps.filterd (m0044010.ppops.net [127.0.0.1]) by mx0a-00082601.pphosted.com (8.16.0.27/8.16.0.27) with SMTP id x66HJe4w021781; Sat, 6 Jul 2019 10:24:19 -0700 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=fb.com; h=from : to : subject : date : message-id : references : in-reply-to : content-type : content-id : content-transfer-encoding : mime-version; s=facebook; bh=Ldte9sXV6mtCtLQ+o7ONf3LStBbbHU2ezaoiX3M6f80=; b=D2wUijhSsp/TgQbfq834Lj8OdpQMtHU+gSYQyGQ6zbTb061ymhrRwgf7zlnx1Ic9bjMz bPGUU7zTvYkVEPs7hyMVa1AV2kxSdTFWxEkAz4wqb87VrLJ0uZiVQxm2iYeWKGw76GP+ C7ehnhNtwm0H9j+/r03xhkDow8jWHrSjwws= Received: from mail.thefacebook.com (mailout.thefacebook.com [199.201.64.23]) by mx0a-00082601.pphosted.com with ESMTP id 2tjpy7hae7-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-SHA384 bits=256 verify=NOT); Sat, 06 Jul 2019 10:24:19 -0700 Received: from prn-mbx05.TheFacebook.com (2620:10d:c081:6::19) by prn-hub02.TheFacebook.com (2620:10d:c081:35::126) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA384) id 15.1.1713.5; Sat, 6 Jul 2019 10:24:19 -0700 Received: from prn-hub03.TheFacebook.com (2620:10d:c081:35::127) by prn-mbx05.TheFacebook.com (2620:10d:c081:6::19) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA384) id 15.1.1713.5; Sat, 6 Jul 2019 10:24:18 -0700 Received: from NAM05-CO1-obe.outbound.protection.outlook.com (192.168.54.28) by o365-in.thefacebook.com (192.168.16.27) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA384) id 15.1.1713.5 via Frontend Transport; Sat, 6 Jul 2019 10:24:18 -0700 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=fb.onmicrosoft.com; s=selector1-fb-onmicrosoft-com; h=From:Date:Subject:Message-ID:Content-Type:MIME-Version:X-MS-Exchange-SenderADCheck; bh=Ldte9sXV6mtCtLQ+o7ONf3LStBbbHU2ezaoiX3M6f80=; b=VIJu4OZzn9fpBX6mbkMzq5+JQckgcqKwOVq4bNFDuBqE9N11H9cNS4VMVrb1IzCu4QW7JZDLtAZziD8zmBKiiNsxGeSsQP1PCUloSa0mW5cmpAaOVYDMvFZZv4nSD31GfOSu4uLCjzLG76uzhd7ekgo6P1rCaGziA7mrW9G+9Sc= Received: from BYAPR15MB3384.namprd15.prod.outlook.com (20.179.59.17) by BYAPR15MB2392.namprd15.prod.outlook.com (52.135.198.139) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.2032.18; Sat, 6 Jul 2019 17:24:17 +0000 Received: from BYAPR15MB3384.namprd15.prod.outlook.com ([fe80::e499:ecba:ec04:abac]) by BYAPR15MB3384.namprd15.prod.outlook.com ([fe80::e499:ecba:ec04:abac%5]) with mapi id 15.20.2052.019; Sat, 6 Jul 2019 17:24:17 +0000 From: Yonghong Song To: Andrii Nakryiko , "andrii.nakryiko@gmail.com" , "bpf@vger.kernel.org" , "netdev@vger.kernel.org" , Alexei Starovoitov , "daniel@iogearbox.net" , Kernel Team Subject: Re: [PATCH v6 bpf-next 0/5] libbpf: add perf buffer abstraction and API Thread-Topic: [PATCH v6 bpf-next 0/5] libbpf: add perf buffer abstraction and API Thread-Index: AQHVM8BniIv3Up8LBE+vvAUcvPhlbqa918GA Date: Sat, 6 Jul 2019 17:24:16 +0000 Message-ID: <9a79b554-d0fb-5b27-4af3-23ba33d96bdd@fb.com> References: <20190706060220.1801632-1-andriin@fb.com> In-Reply-To: <20190706060220.1801632-1-andriin@fb.com> Accept-Language: en-US Content-Language: en-US X-MS-Has-Attach: X-MS-TNEF-Correlator: x-clientproxiedby: MWHPR03CA0018.namprd03.prod.outlook.com (2603:10b6:300:117::28) To BYAPR15MB3384.namprd15.prod.outlook.com (2603:10b6:a03:10e::17) x-ms-exchange-messagesentrepresentingtype: 1 x-originating-ip: [2620:10d:c090:180::1:c7d4] x-ms-publictraffictype: Email x-ms-office365-filtering-correlation-id: 7d4a1216-cba6-47cf-4964-08d70236c5db x-microsoft-antispam: BCL:0;PCL:0;RULEID:(2390118)(7020095)(4652040)(8989299)(4534185)(4627221)(201703031133081)(201702281549075)(8990200)(5600148)(711020)(4605104)(1401327)(2017052603328)(7193020);SRVR:BYAPR15MB2392; x-ms-traffictypediagnostic: BYAPR15MB2392: x-microsoft-antispam-prvs: x-ms-oob-tlc-oobclassifiers: OLM:425; x-forefront-prvs: 00909363D5 x-forefront-antispam-report: SFV:NSPM;SFS:(10019020)(346002)(396003)(376002)(136003)(366004)(39860400002)(199004)(189003)(46003)(11346002)(476003)(446003)(486006)(186003)(316002)(102836004)(2906002)(66476007)(6506007)(36756003)(5660300002)(66556008)(64756008)(81156014)(73956011)(66446008)(110136005)(99286004)(6116002)(66946007)(478600001)(76176011)(52116002)(14454004)(2616005)(53546011)(386003)(86362001)(6246003)(256004)(25786009)(31696002)(7736002)(2501003)(31686004)(2201001)(6636002)(6512007)(81166006)(229853002)(53936002)(71190400001)(6436002)(71200400001)(8676002)(305945005)(68736007)(8936002)(6486002);DIR:OUT;SFP:1102;SCL:1;SRVR:BYAPR15MB2392;H:BYAPR15MB3384.namprd15.prod.outlook.com;FPR:;SPF:None;LANG:en;PTR:InfoNoRecords;A:1;MX:1; received-spf: None (protection.outlook.com: fb.com does not designate permitted sender hosts) x-ms-exchange-senderadcheck: 1 x-microsoft-antispam-message-info: PchGA4X2Obp0KPgvyRENvU0LRefXt9YM7q3HqKjO+kq4tbzsOwFzVMZg9us8gQMO3DZrd9vEAXGMMV8CCvmD9a+iN746yRjtwa60WT/JE9EbP6+M4jmdinYLJQjE5X7cOhk2YThsNEXSweQ59FkYrEiTTn3XJYAergKRvrjVWMT6mJlZxdyW13fAKNrlNvH376W7uiptEIoRLg9V122CfvLyfAr8d/TFQ3Rcyn+mkBuCDv+AvU4Bgl89vI44xe1FcuCDNsa/4DaHYfQhXTt5rp/aOlE3kzMhBxIv6mz2Z3BOMU6RImljy3sHe0cB9lx6mNpt9ezL8Nbn4y3dk75UabUQ/MfM27ie8lXJgd+AtlY0TszuEGbGKM5a98ZXxZyYV6kdoTPKCLKYuu1JZLkfCv0NJpnKwOHgOtTzpNqGolE= Content-Type: text/plain; charset="utf-8" Content-ID: <5004B6BE92DB294AB6162C2BC688D726@namprd15.prod.outlook.com> Content-Transfer-Encoding: base64 MIME-Version: 1.0 X-MS-Exchange-CrossTenant-Network-Message-Id: 7d4a1216-cba6-47cf-4964-08d70236c5db X-MS-Exchange-CrossTenant-originalarrivaltime: 06 Jul 2019 17:24:16.8975 (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: yhs@fb.com X-MS-Exchange-Transport-CrossTenantHeadersStamped: BYAPR15MB2392 X-OriginatorOrg: fb.com X-Proofpoint-Virus-Version: vendor=fsecure engine=2.50.10434:,, definitions=2019-07-06_05:,, signatures=0 X-Proofpoint-Spam-Details: rule=fb_default_notspam policy=fb_default score=0 priorityscore=1501 malwarescore=0 suspectscore=0 phishscore=0 bulkscore=0 spamscore=0 clxscore=1015 lowpriorityscore=0 mlxscore=0 impostorscore=0 mlxlogscore=999 adultscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.0.1-1810050000 definitions=main-1907060230 X-FB-Internal: deliver Sender: netdev-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: netdev@vger.kernel.org DQoNCk9uIDcvNS8xOSAxMTowMiBQTSwgQW5kcmlpIE5ha3J5aWtvIHdyb3RlOg0KPiBUaGlzIHBh dGNoc2V0IGFkZHMgYSBoaWdoLWxldmVsIEFQSSBmb3Igc2V0dGluZyB1cCBhbmQgcG9sbGluZyBw ZXJmIGJ1ZmZlcnMNCj4gYXNzb2NpYXRlZCB3aXRoIEJQRl9NQVBfVFlQRV9QRVJGX0VWRU5UX0FS UkFZIG1hcC4gRGV0YWlscyBvZiBBUElzIGFyZQ0KPiBkZXNjcmliZWQgaW4gY29ycmVzcG9uZGlu ZyBjb21taXQuDQo+IA0KPiBQYXRjaCAjMSBhZGRzIGEgc2V0IG9mIEFQSXMgdG8gc2V0IHVwIGFu ZCB3b3JrIHdpdGggcGVyZiBidWZmZXIuDQo+IFBhdGNoICMyIGVuaGFuY2VzIGxpYmJwZiB0byBz dXBwb3J0IGF1dG8tc2V0dGluZyBQRVJGX0VWRU5UX0FSUkFZIG1hcCBzaXplLg0KPiBQYXRjaCAj MyBhZGRzIHRlc3QuDQo+IFBhdGNoICM0IGNvbnZlcnRzIGJwZnRvb2wgbWFwIGV2ZW50X3BpcGUg dG8gbmV3IEFQSS4NCj4gUGF0Y2ggIzUgdXBkYXRlcyBSRUFETUUgdG8gbWVudGlvbiBwZXJmX2J1 ZmZlcl8gcHJlZml4Lg0KPiANCj4gdjUtPnY2Og0KPiAtIGZpeCBDOTkgZm9yIGxvb3AgdmFyaWFi bGUgaW5pdGlhbGl6YXRpb24gdXNhZ2UgKFlvbmdob25nKTsNCj4gdjQtPnY1Og0KPiAtIGluaXRp YWxpemUgcGVyZl9idWZmZXJfcmF3X29wdHMgaW4gYnBmdG9vbCBtYXAgZXZlbnRfcGlwZSAoSmFr dWIpOw0KPiAtIGFkZCBwZXJmX2J1ZmZlcl8gdG8gUkVBRE1FOw0KPiB2My0+djQ6DQo+IC0gZml4 ZWQgYnBmdG9vbCBldmVudF9waXBlIGNtZCBlcnJvciBoYW5kbGluZyAoSmFrdWIpOw0KPiB2Mi0+ djM6DQo+IC0gYWRkZWQgcGVyZl9idWZmZXJfX25ld19yYXcgZm9yIG1vcmUgbG93LWxldmVsIGNv bnRyb2w7DQo+IC0gY29udmVydGVkIGJwZnRvb2wgbWFwIGV2ZW50X3BpcGUgdG8gbmV3IEFQSSAo RGFuaWVsKTsNCj4gLSBmaXhlZCBidWcgd2l0aCBlcnJvciBoYW5kbGluZyBpbiBjcmVhdGVfbWFw cyAoU29uZyk7DQo+IHYxLT52MjoNCj4gLSBhZGQgYXV0by1zaXppbmcgb2YgUEVSRl9FVkVOVF9B UlJBWSBtYXBzOw0KPiANCj4gQW5kcmlpIE5ha3J5aWtvICg1KToNCj4gICAgbGliYnBmOiBhZGQg cGVyZiBidWZmZXIgQVBJDQo+ICAgIGxpYmJwZjogYXV0by1zZXQgUEVSRl9FVkVOVF9BUlJBWSBz aXplIHRvIG51bWJlciBvZiBDUFVzDQo+ICAgIHNlbGZ0ZXN0cy9icGY6IHRlc3QgcGVyZiBidWZm ZXIgQVBJDQo+ICAgIHRvb2xzL2JwZnRvb2w6IHN3aXRjaCBtYXAgZXZlbnRfcGlwZSB0byBsaWJi cGYncyBwZXJmX2J1ZmZlcg0KPiAgICBsaWJicGY6IGFkZCBwZXJmX2J1ZmZlcl8gcHJlZml4IHRv IFJFQURNRQ0KPiANCj4gICB0b29scy9icGYvYnBmdG9vbC9tYXBfcGVyZl9yaW5nLmMgICAgICAg ICAgICAgfCAyMDEgKysrLS0tLS0tDQo+ICAgdG9vbHMvbGliL2JwZi9SRUFETUUucnN0ICAgICAg ICAgICAgICAgICAgICAgIHwgICAzICstDQo+ICAgdG9vbHMvbGliL2JwZi9saWJicGYuYyAgICAg ICAgICAgICAgICAgICAgICAgIHwgMzk3ICsrKysrKysrKysrKysrKysrLQ0KPiAgIHRvb2xzL2xp Yi9icGYvbGliYnBmLmggICAgICAgICAgICAgICAgICAgICAgICB8ICA0OSArKysNCj4gICB0b29s cy9saWIvYnBmL2xpYmJwZi5tYXAgICAgICAgICAgICAgICAgICAgICAgfCAgIDQgKw0KPiAgIC4u Li9zZWxmdGVzdHMvYnBmL3Byb2dfdGVzdHMvcGVyZl9idWZmZXIuYyAgICB8ICA5NCArKysrKw0K PiAgIC4uLi9zZWxmdGVzdHMvYnBmL3Byb2dzL3Rlc3RfcGVyZl9idWZmZXIuYyAgICB8ICAyNSAr Kw0KPiAgIDcgZmlsZXMgY2hhbmdlZCwgNjI4IGluc2VydGlvbnMoKyksIDE0NSBkZWxldGlvbnMo LSkNCj4gICBjcmVhdGUgbW9kZSAxMDA2NDQgdG9vbHMvdGVzdGluZy9zZWxmdGVzdHMvYnBmL3By b2dfdGVzdHMvcGVyZl9idWZmZXIuYw0KPiAgIGNyZWF0ZSBtb2RlIDEwMDY0NCB0b29scy90ZXN0 aW5nL3NlbGZ0ZXN0cy9icGYvcHJvZ3MvdGVzdF9wZXJmX2J1ZmZlci5jDQoNCldpdGggYSBtaW5v ciBjb21tZW50IG9uIHBhdGNoIDMvNSBpbiBhIGRpZmZlcmVudCB0aHJlYWQsDQpMR1RNLiBBY2sg Zm9yIHRoZSB3aG9sZSBzZXJpZXMuDQpBY2tlZC1ieTogWW9uZ2hvbmcgU29uZyA8eWhzQGZiLmNv bT4NCg0K