Received: by 2002:ad5:474a:0:0:0:0:0 with SMTP id i10csp2516955imu; Tue, 6 Nov 2018 16:27:46 -0800 (PST) X-Google-Smtp-Source: AJdET5fRIQDmO3XwkrCODe9ECZbOQDQ9sF8MFdUKXThiMYTnenU7pLEbTCjdfHIzz9nPmwSmJiDt X-Received: by 2002:a65:50c3:: with SMTP id s3-v6mr25109136pgp.355.1541550466711; Tue, 06 Nov 2018 16:27:46 -0800 (PST) ARC-Seal: i=1; a=rsa-sha256; t=1541550466; cv=none; d=google.com; s=arc-20160816; b=tH4zP5Ke0gXc5+ykZsQMmGIWoWbX9EVxnZWO2spNkAdNlnEap8QoCPH1lUzK76JuWP dun09ePRg5XKspfF5IKYLDN7GQk/CZLgz3UQ+9OqP7ZrxxEueEqwpRuf9wEuSNHT7gUy +LCWt17nW4gbaxsdSwH42DqnPIuhKYbtnYjoCCGXEzKGP+UcPK7VY3Khk7IEQZV++4Jy 33Zj2DLhJ54nLQvzq/vrcE9hejmgWCxl6ha5u/W26V2UAOwFEXqW+3ccZMLwl4/QDcXe V+rVkgIWB4phTewEsuhZgrn2KTerxZLPMLmUg5hHMXGQq0Fqj2QP91jyz6zUiPNjAiTv V60Q== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=list-id:precedence:sender:mime-version:content-transfer-encoding :content-id:spamdiagnosticmetadata:spamdiagnosticoutput :content-language:accept-language:in-reply-to:references:message-id :date:thread-index:thread-topic:subject:cc:to:from:dkim-signature :dkim-signature; bh=RRcUyhvfvRmwOQ/jRFLt1W6ixHubOesnnRBYEnU7hfc=; b=krCSszKY2orqpm5HVRx9JI4TOj3JYGzQMFpxD/hVwodbapvkNxBzol5xbdjiMLovnO RCYDDGQtW0OJl782VYhYMVPoWQOqY6L9F26KT8OxQCUKSrKdTqfI9TS6dSMJ/kCrP+eH zB8d0XhUXlJ5j1vyu4vdCrJfAyQBRmy3D+XAnDKrDNpaGYDp1zw4ArmOMXk3pQuYinMm lyOIsJ6QwJprmDhU5/eijUx0moBtooxhSlV9eVjfPuuCaylUy6P+GB8ks5nbdUKt+frf GK/oERlRR4duVtO7sXHfGeYBS0ZvYNFMhzgdF1Znzl8lX9fE0P0ugS7/qYx8EnC4P8SL uKkg== ARC-Authentication-Results: i=1; mx.google.com; dkim=pass header.i=@fb.com header.s=facebook header.b="HOMPB/Mg"; dkim=pass header.i=@fb.onmicrosoft.com header.s=selector1-fb-com header.b=Vlm3ngnJ; spf=pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org; dmarc=pass (p=NONE sp=NONE dis=NONE) header.from=fb.com Return-Path: Received: from vger.kernel.org (vger.kernel.org. [209.132.180.67]) by mx.google.com with ESMTP id 91-v6si29950477plc.409.2018.11.06.16.27.30; Tue, 06 Nov 2018 16:27:46 -0800 (PST) Received-SPF: pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) client-ip=209.132.180.67; Authentication-Results: mx.google.com; dkim=pass header.i=@fb.com header.s=facebook header.b="HOMPB/Mg"; dkim=pass header.i=@fb.onmicrosoft.com header.s=selector1-fb-com header.b=Vlm3ngnJ; spf=pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org; dmarc=pass (p=NONE sp=NONE dis=NONE) header.from=fb.com Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S2388662AbeKGJyt (ORCPT + 99 others); Wed, 7 Nov 2018 04:54:49 -0500 Received: from mx0a-00082601.pphosted.com ([67.231.145.42]:39562 "EHLO mx0a-00082601.pphosted.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S2387612AbeKGJyt (ORCPT ); Wed, 7 Nov 2018 04:54:49 -0500 Received: from pps.filterd (m0109333.ppops.net [127.0.0.1]) by mx0a-00082601.pphosted.com (8.16.0.22/8.16.0.22) with SMTP id wA70OKd4023894; Tue, 6 Nov 2018 16:26:19 -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=RRcUyhvfvRmwOQ/jRFLt1W6ixHubOesnnRBYEnU7hfc=; b=HOMPB/MgnKNoUU6pdhfkKp9nyHx+AAxtXm6BPM05lRr23L9yT487NS5HDg1gIILmnUKB koafLe+qbkpJjNFR13FGtiDjJ+4ANS26MNH/+BhQF9FGTW8TnArsp6iq/Y4AWO6CDH2n iGpx394aC/1svxAYJpqHLgwOmG5dAaSs+u8= Received: from mail.thefacebook.com ([199.201.64.23]) by mx0a-00082601.pphosted.com with ESMTP id 2nkmypg328-4 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-SHA384 bits=256 verify=NOT); Tue, 06 Nov 2018 16:26:19 -0800 Received: from prn-hub05.TheFacebook.com (2620:10d:c081:35::129) by prn-hub05.TheFacebook.com (2620:10d:c081:35::129) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA384) id 15.1.1531.3; Tue, 6 Nov 2018 16:26:18 -0800 Received: from PRN-CHUB11.TheFacebook.com (2620:10d:c081:35::20) by prn-hub05.TheFacebook.com (2620:10d:c081:35::129) with Microsoft SMTP Server (version=TLS1_0, cipher=TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA) id 15.1.1531.3 via Frontend Transport; Tue, 6 Nov 2018 16:26:18 -0800 Received: from NAM04-CO1-obe.outbound.protection.outlook.com (192.168.54.28) by o365-in.thefacebook.com (192.168.16.21) with Microsoft SMTP Server (TLS) id 14.3.319.2; Tue, 6 Nov 2018 16:26:18 -0800 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=fb.onmicrosoft.com; s=selector1-fb-com; h=From:Date:Subject:Message-ID:Content-Type:MIME-Version:X-MS-Exchange-SenderADCheck; bh=RRcUyhvfvRmwOQ/jRFLt1W6ixHubOesnnRBYEnU7hfc=; b=Vlm3ngnJfVpddxaRwxZBc/VYbPvTLa/7iIyXPEh1FGMV0di2ZhHwzaAkChsz2WaoHxANbg93OKHyy9BI8kvNKMC0BFhFY7rtNZftgYj+YMPA5DqBQ3dFnxmmtH2rOyIxte961e94u1xFKvTMbC53CHHyV6IAHuID/liULQfVqOE= Received: from BYAPR15MB2501.namprd15.prod.outlook.com (52.135.196.11) by BYAPR15MB2261.namprd15.prod.outlook.com (52.135.197.15) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.1294.26; Wed, 7 Nov 2018 00:26:16 +0000 Received: from BYAPR15MB2501.namprd15.prod.outlook.com ([fe80::ed40:7ac9:3043:5bc1]) by BYAPR15MB2501.namprd15.prod.outlook.com ([fe80::ed40:7ac9:3043:5bc1%2]) with mapi id 15.20.1294.034; Wed, 7 Nov 2018 00:26:16 +0000 From: Alexei Starovoitov To: David Ahern , David Miller CC: Song Liu , "netdev@vger.kernel.org" , "linux-kernel@vger.kernel.org" , Kernel Team , "ast@kernel.org" , "daniel@iogearbox.net" , "peterz@infradead.org" , "acme@kernel.org" Subject: Re: [RFC perf,bpf 5/5] perf util: generate bpf_prog_info_event for short living bpf programs Thread-Topic: [RFC perf,bpf 5/5] perf util: generate bpf_prog_info_event for short living bpf programs Thread-Index: AQHUdhL1gT1g6kXc4U+H9DJqSIZu3qVDSleAgAAXY4CAAAMiAIAAAiiAgAAKXoCAAAKqgIAAAMIA Date: Wed, 7 Nov 2018 00:26:16 +0000 Message-ID: <82745121-339e-2751-c9db-d1fca02d0b33@fb.com> References: <6C5A9FBD-F50D-444C-9038-E9557EC850D2@fb.com> <27fc8327-3390-ba5a-6063-89c9e7165e7b@fb.com> <20181106.153647.1701013551426767213.davem@davemloft.net> <39fe6abc-5c3e-bac3-0c0b-cf68bea23ab0@fb.com> <0a05a14c-3a79-e894-ae48-cbe1df4feb91@gmail.com> In-Reply-To: <0a05a14c-3a79-e894-ae48-cbe1df4feb91@gmail.com> Accept-Language: en-US Content-Language: en-US X-MS-Has-Attach: X-MS-TNEF-Correlator: x-clientproxiedby: MWHPR04CA0095.namprd04.prod.outlook.com (2603:10b6:301:3a::36) To BYAPR15MB2501.namprd15.prod.outlook.com (2603:10b6:a02:88::11) x-ms-exchange-messagesentrepresentingtype: 1 x-originating-ip: [2620:10d:c090:200::7:62d8] x-ms-publictraffictype: Email x-microsoft-exchange-diagnostics: 1;BYAPR15MB2261;20:c20TcaFaJyacK5mp+IoUykOplmZduRzQAYWcbflE6C/IpZcw+vtTFu69J5zNeXpg2NAdosoLaBdcr4D8BfQPqAw4blAHJWFdZnJ0fhhvvq7AFoDIa7PkaWIQ5Aq5hAB5SQ3hVXMZpTRSMQTpwVNU12fGB9a8sdniKdt7xkPrwnk= x-ms-office365-filtering-correlation-id: 66d1bc90-e081-4110-bde4-08d64447a155 x-microsoft-antispam: BCL:0;PCL:0;RULEID:(7020095)(4652040)(8989299)(5600074)(711020)(4534185)(4627221)(201703031133081)(201702281549075)(8990200)(2017052603328)(7153060)(7193020);SRVR:BYAPR15MB2261; x-ms-traffictypediagnostic: BYAPR15MB2261: x-microsoft-antispam-prvs: x-exchange-antispam-report-test: UriScan:(67672495146484); x-ms-exchange-senderadcheck: 1 x-exchange-antispam-report-cfa-test: BCL:0;PCL:0;RULEID:(8211001083)(6040522)(2401047)(5005006)(8121501046)(823302103)(3231382)(11241501184)(944501410)(52105095)(93006095)(93001095)(3002001)(10201501046)(148016)(149066)(150057)(6041310)(20161123560045)(20161123564045)(20161123558120)(20161123562045)(201703131423095)(201702281528075)(20161123555045)(201703061421075)(201703061406153)(201708071742011)(7699051)(76991095);SRVR:BYAPR15MB2261;BCL:0;PCL:0;RULEID:;SRVR:BYAPR15MB2261; x-forefront-prvs: 08497C3D99 x-forefront-antispam-report: SFV:NSPM;SFS:(10019020)(396003)(39860400002)(376002)(366004)(136003)(346002)(199004)(189003)(229853002)(46003)(86362001)(256004)(81166006)(8936002)(478600001)(81156014)(99286004)(102836004)(14454004)(76176011)(52116002)(6506007)(386003)(53546011)(2900100001)(106356001)(6436002)(53936002)(6116002)(6486002)(6246003)(5660300001)(2906002)(36756003)(8676002)(6512007)(68736007)(105586002)(31686004)(486006)(7736002)(476003)(71190400001)(71200400001)(305945005)(39060400002)(54906003)(110136005)(97736004)(31696002)(186003)(93886005)(25786009)(4326008)(11346002)(316002)(2616005)(446003)(142933001)(42262002);DIR:OUT;SFP:1102;SCL:1;SRVR:BYAPR15MB2261;H:BYAPR15MB2501.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-microsoft-antispam-message-info: KUINSkU3mAX/0kdOwV54QCSsgP11DacXtjTlfyiIO2Ky5U/yuu6ujg2WhsXcGGhRzvHwPF3aVVDjl7vQokXts9Kty7wGSM+oCr2CVIZQ7jQbJKUoWtKmZO2gDVBIH2cDT+DAzhshygsg6ip5YO6DDkQkSaWRs/6ZVnPlx8Q4G93Dx3lIw1xYsoV66AeBLdWlPzI4/mUn41LT8kdylPUcvPjeLmfS3wPUf42AQVQdAijaMpPO6o3dDbCCW1CiWQdhYePg4zGr0ML7Gkw5di13MAY1prgXsErYMWzM7NFj2SWfqSD9rTkBOd6GkVd2o8PcidtXp/j2a/Sq+6Q3weXNJuyoDVztuAAfrLkqLbfD+CE= spamdiagnosticoutput: 1:99 spamdiagnosticmetadata: NSPM Content-Type: text/plain; charset="utf-8" Content-ID: Content-Transfer-Encoding: base64 MIME-Version: 1.0 X-MS-Exchange-CrossTenant-Network-Message-Id: 66d1bc90-e081-4110-bde4-08d64447a155 X-MS-Exchange-CrossTenant-originalarrivaltime: 07 Nov 2018 00:26:16.4575 (UTC) X-MS-Exchange-CrossTenant-fromentityheader: Hosted X-MS-Exchange-CrossTenant-id: 8ae927fe-1255-47a7-a2af-5f3a069daaa2 X-MS-Exchange-Transport-CrossTenantHeadersStamped: BYAPR15MB2261 X-OriginatorOrg: fb.com X-Proofpoint-Virus-Version: vendor=fsecure engine=2.50.10434:,, definitions=2018-11-06_13:,, signatures=0 X-Proofpoint-Spam-Reason: safe X-FB-Internal: Safe Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org T24gMTEvNi8xOCA0OjIzIFBNLCBEYXZpZCBBaGVybiB3cm90ZToNCj4gT24gMTEvNi8xOCA1OjEz IFBNLCBBbGV4ZWkgU3Rhcm92b2l0b3Ygd3JvdGU6DQo+PiBPbiAxMS82LzE4IDM6MzYgUE0sIERh dmlkIE1pbGxlciB3cm90ZToNCj4+PiBGcm9tOiBBbGV4ZWkgU3Rhcm92b2l0b3YgPGFzdEBmYi5j b20+DQo+Pj4gRGF0ZTogVHVlLCA2IE5vdiAyMDE4IDIzOjI5OjA3ICswMDAwDQo+Pj4NCj4+Pj4g SSB0aGluayBjb25jZXJucyB3aXRoIHBlcmYgb3ZlcmhlYWQgZnJvbSBjb2xsZWN0aW5nIGJwZiBl dmVudHMNCj4+Pj4gYXJlIHVuZm91bmRlZC4NCj4+Pj4gSSB3b3VsZCBwcmVmZXIgZm9yIHRoaXMg ZmxhZyB0byBiZSBvbiBieSBkZWZhdWx0Lg0KPj4+DQo+Pj4gSSB3aWxsIHNpdCBpbiB1c2Vyc3Bh Y2UgbG9vcGluZyBvdmVyIGJwZiBsb2FkL3VubG9hZCBhbmQgc2VlIGhvdyB0aGUNCj4+PiBwZXJz b24gdHJ5aW5nIHRvIG1vbml0b3Igc29tZXRoaW5nIGVsc2Ugd2l0aCBwZXJmIGZlZWxzIGFib3V0 IHRoYXQuDQo+Pj4NCj4+PiBSZWFsbHksIGl0IGlzIGluYXBwcm9wcmlhdGUgdG8gdHVybiB0aGlz IG9uIGJ5IGRlZmF1bHQsIEkgY29tcGxldGVseQ0KPj4+IGFncmVlIHdpdGggRGF2aWQgQWhlcm4u DQo+Pj4NCj4+PiBJdCdzIGhhcmQgZW5vdWdoLCBfQVMgSVNfLCBmb3IgbWUgdG8gZmlnaHQgYmFj ayBhbGwgb2YgdGhlIGJsb2F0IHRoYXQNCj4+PiBpcyBpbiBwZXJmIHJpZ2h0IG5vdyBhbmQgZ2V0 IGl0IGJhY2sgdG8gYmVpbmcgYWJsZSB0byBoYW5kbGUgc2ltcGxlDQo+Pj4gZnVsbCB3b3JrbG9h ZHMgd2l0aG91dCBkcm9wcGluZyBldmVudHMuLg0KPj4NCj4+IEl0J3MgYSBzZXBhcmF0ZSBwZXJm IHRocmVhZCBhbmQgc2VwYXJhdGUgZXZlbnQgd2l0aCBpdHMgb3duIGVwb2xsLg0KPj4gSSBkb24n dCBzZWUgaG93IGl0IGNhbiBhZmZlY3QgbWFpbiBldmVudCBjb2xsZWN0aW9uLg0KPj4gTGV0J3Mg cHV0IGl0IHRoaXMgd2F5LiBJZiBpdCBkb2VzIGFmZmVjdCBzb21laG93LCB0aGVuIHllcywNCj4+ IGl0IHNob3VsZCBub3QgYmUgb24uIElmIGl0IGlzIG5vdCwgdGhlcmUgaXMgbm8gZG93bnNpZGUg dG8ga2VlcCBpdCBvbi4NCj4+IFR5cGljYWwgdXNlciBleHBlY3RzIHRvIHR5cGUgJ3BlcmYgcmVj b3JkJyBhbmQgc2VlIGV2ZXJ5dGhpbmcgdGhhdA0KPj4gaXMgaGFwcGVuaW5nIG9uIHRoZSBzeXN0 ZW0uIFJpZ2h0IG5vdyBzaG9ydCBsaXZlZCBicGYgcHJvZ3JhbXMNCj4+IHdpbGwgbm90IGJlIHNl ZW4uIEhvdyB1c2VyIHN1cHBvc2UgdG8gZXZlbiBrbm93IHdoZW4gdG8gdXNlIHRoZSBmbGFnPw0K PiANCj4gVGhlIGRlZmF1bHQgaXMgcHJvZmlsaW5nIHdoZXJlIHBlcmYgcmVjb3JkIGNvbGxlY3Rz IHRhc2sgZXZlbnRzIGFuZA0KPiBwZXJpb2RpYyBzYW1wbGVzLiBTbyBmb3IgdGhlIGRlZmF1bHQg cmVjb3JkL3JlcG9ydCwgdGhlIGJwZiBsb2FkIC8NCj4gdW5sb2FkIGV2ZW50cyBhcmUgbm90IHJl bGV2YW50Lg0KDQpFeGFjdGx5IHRoZSBvcHBvc2l0ZS4NCkl0J3MgZm9yIGRlZmF1bHQgJ3BlcmYg cmVjb3JkJyBjb2xsZWN0aW9uIG9mIHBlcmlvZGljIHNhbXBsZXMuDQpJdCBjYW4gYmUgb2ZmIGZv ciAtZSBjb2xsZWN0aW9uLiBUaGF0J3MgZWFzeS4NCg==