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=-0.8 required=3.0 tests=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 7D432C433E0 for ; Wed, 3 Jun 2020 04:51:39 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 58890206C3 for ; Wed, 3 Jun 2020 04:51:39 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1725780AbgFCEvi (ORCPT ); Wed, 3 Jun 2020 00:51:38 -0400 Received: from szxga01-in.huawei.com ([45.249.212.187]:2156 "EHLO huawei.com" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1725275AbgFCEvi (ORCPT ); Wed, 3 Jun 2020 00:51:38 -0400 Received: from DGGEMM402-HUB.china.huawei.com (unknown [172.30.72.56]) by Forcepoint Email with ESMTP id CD7BA67876921A873E0A; Wed, 3 Jun 2020 12:51:35 +0800 (CST) Received: from dggema755-chm.china.huawei.com (10.1.198.197) by DGGEMM402-HUB.china.huawei.com (10.3.20.210) with Microsoft SMTP Server (TLS) id 14.3.487.0; Wed, 3 Jun 2020 12:51:35 +0800 Received: from dggema758-chm.china.huawei.com (10.1.198.200) by dggema755-chm.china.huawei.com (10.1.198.197) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256_P256) id 15.1.1913.5; Wed, 3 Jun 2020 12:51:35 +0800 Received: from dggema758-chm.china.huawei.com ([10.9.48.193]) by dggema758-chm.china.huawei.com ([10.9.48.193]) with mapi id 15.01.1913.007; Wed, 3 Jun 2020 12:51:35 +0800 From: "zhujianwei (C)" To: Kees Cook CC: Alexei Starovoitov , "bpf@vger.kernel.org" , "linux-security-module@vger.kernel.org" , Hehuazhen , Lennart Poettering , Christian Ehrhardt , =?utf-8?B?WmJpZ25pZXcgSsSZZHJ6ZWpld3NraS1Tem1law==?= Subject: =?utf-8?B?562U5aSNOiDnrZTlpI06IOetlOWkjTogbmV3IHNlY2NvbXAgbW9kZSBhaW1z?= =?utf-8?Q?_to_improve_performance?= Thread-Topic: =?utf-8?B?562U5aSNOiDnrZTlpI06IG5ldyBzZWNjb21wIG1vZGUgYWltcyB0byBpbXBy?= =?utf-8?Q?ove_performance?= Thread-Index: AdY1q17j91IY6CMiRsq40mFg/pmPz///wxIAgAAHIgCAADc1gP/7503AgAfEWYD//fXnAIADmuoA//74EOD//e1ysP/75+mA//aekTA= Date: Wed, 3 Jun 2020 04:51:35 +0000 Message-ID: <8fb6782a829a4d79b73c189756086630@huawei.com> References: <202005290903.11E67AB0FD@keescook> <202005291043.A63D910A8@keescook> <7dacac003a9949ea8163fca5125a2cae@huawei.com> <20200602032446.7sn2fmzsea2v2wbs@ast-mbp.dhcp.thefacebook.com> <07ce4c1273054955a350e67f2dc35812@huawei.com> <202006021111.947830EC@keescook> In-Reply-To: <202006021111.947830EC@keescook> Accept-Language: en-US Content-Language: zh-CN X-MS-Has-Attach: X-MS-TNEF-Correlator: x-originating-ip: [10.166.215.96] Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: base64 MIME-Version: 1.0 X-CFilter-Loop: Reflected Sender: bpf-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: bpf@vger.kernel.org PiBHaXZlbiB0aGF0IHlvdSdyZSBzdGlsbCBkb2luZyB0aGlzIGluIHN5c2NhbGxfdHJhY2VfZW50 ZXIoKSwgSSBpbWFnaW5lDQo+IGl0IGNvdWxkIGxpdmUgaW4gc2VjdXJlX2NvbXB1dGluZygpLg0K DQpJbmRlZWQsIFdlIGFncmVlIHdpdGggdGhhdCBhZGRpbmcgbGlnaHRfc3lzY2FsbF9maWx0ZXIg aW4gc2VjY29tcF9jb21wdXRpbmcoKS4gDQoNCj4gSSB3b25kZXIgaWYgYWFyY2g2NCBoYXMgaGln aGVyIG92ZXJoZWFkIGZvciBjYWxsaW5nIGludG8gdGhlIFRJRl9XT1JLDQo+IHRyYWNlIHN0dWZm PyAoT3IgaWYgYWFyY2g2NCdzIEJQRiBKSVQgaXMgbm90IGFzIGVmZmljaWVudCBhcyB4ODY/KQ0K DQpXZSBhbHNvIGd1ZXNzIHRoYXQgdGhlcmUgYXJlIG1hbnkgcG9zc2libGUgcmVhc29ucy4NCkFu ZCB3ZSB0aGluayB0aGF0IHBsYWNpbmcgdGhlIGJpdG1hcCBmaWx0ZXIgdGhlIGZ1cnRoZXIgZm9y d2FyZCB0aGUgYmV0dGVyLiBPdXIgdGVzdCByZXN1bHRzIHNob3cgdGhhdCBwbGFjaW5nIHRoZSBi aXRtYXAgZmlsdGVyIGZvcndhcmQgY2FuIHNvbHZlIHNpbmdsZSBmaWx0ZXIgdG90YWwgb3Zlcmhl YWQuIFdoYXQgaXMgeW91ciBvcGluaW9uIGFib3V0IHRoYXQ/DQoNCj4gQW55d2F5LCB0aGUgZnVu Y3Rpb25hbGl0eSBoZXJlIGlzIHNpbWlsYXIgdG8gd2hhdCBJJ3ZlIGJlZW4gd29ya2luZw0KPiBv biBmb3IgYml0bWFwcyAoaGF2aW5nIGEgZ2xvYmFsIHByZWFsbG9jYXRlZCBiaXRtYXAgaXNuJ3Qg Z29pbmcgdG8gYmUNCj4gdXBzdHJlYW1hYmxlLCBidXQgaXQncyBnb29kIGZvciBQb0MpLiBUaGUg Y29tcGxpY2F0aW9ucyBhcmUgd2l0aCBoYW5kbGluZw0KPiBkaWZmZXJpbmcgYXJjaGl0ZWN0dXJl IChmb3IgY29tcGF0IHN5c3RlbXMpLCB0cmFja2luZy9jaG9vc2luZyBiZXR3ZWVuDQo+IHRoZSB2 YXJpb3VzIGJhc2ljIFNFQ0NPTVBfUkVUXyogYmVoYXZpb3JzLCBldGMuDQoNCkZpcnN0bHksIHRo YW5rIHlvdSBmb3IgY29ycmVjdGlvbiBpbiBjb2RlLCB5ZXMsIGl0IGlzIGp1c3QgYSBQb0MgZm9y IHBlcmZvcm1hbmNlIHRlc3QuDQpJbmRlZWQsIHlvdXIgYml0bWFwIGlkZWEgaXMgYmFzaWNseSBz YW1lIHdpdGggdXMuIEFuZCwgd2UgYXJlIHRyeWluZyB0byBmaW5kIGEgc29sdXRpb24gdG8gaW1w cm92ZSB0aGUgc2VjY29tcCBwZXJmb3JtYW5jZSBmb3IgcHJvZHVjdCB1c2UuIA0KU28gV2hhdCBp cyB5b3VyIHBsYW4gdG8gaGF2ZSBpdCBkb25lPyANCkNvdWxkIHdlIGRvIHNvbWV0aGluZyB0byBo ZWxwIHlvdSBwcm9jZWVkIGl0Pw0K