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=-4.0 required=3.0 tests=BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS, URIBL_BLOCKED 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 1167DC433DF for ; Sun, 16 Aug 2020 02:02:38 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id D592B206C0 for ; Sun, 16 Aug 2020 02:02:37 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1729338AbgHPCCg (ORCPT ); Sat, 15 Aug 2020 22:02:36 -0400 Received: from szxga03-in.huawei.com ([45.249.212.189]:3478 "EHLO huawei.com" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1727824AbgHPCCg (ORCPT ); Sat, 15 Aug 2020 22:02:36 -0400 Received: from dggeme752-chm.china.huawei.com (unknown [172.30.72.56]) by Forcepoint Email with ESMTP id B36A2BC88270589DE43A; Sat, 15 Aug 2020 10:02:18 +0800 (CST) Received: from dggeme753-chm.china.huawei.com (10.3.19.99) by dggeme752-chm.china.huawei.com (10.3.19.98) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256_P256) id 15.1.1913.5; Sat, 15 Aug 2020 10:02:18 +0800 Received: from dggeme753-chm.china.huawei.com ([10.7.64.70]) by dggeme753-chm.china.huawei.com ([10.7.64.70]) with mapi id 15.01.1913.007; Sat, 15 Aug 2020 10:02:18 +0800 From: linmiaohe To: Willem de Bruijn CC: David Miller , Alexey Kuznetsov , Hideaki YOSHIFUJI , "Jakub Kicinski" , Network Development , linux-kernel Subject: Re: [PATCH] net: correct zerocopy refcnt with newly allocated UDP or RAW uarg Thread-Topic: [PATCH] net: correct zerocopy refcnt with newly allocated UDP or RAW uarg Thread-Index: AdZyp1tkhsmk8znDTaCFo8WdLFJE0Q== Date: Sat, 15 Aug 2020 02:02:18 +0000 Message-ID: <0627950da21443c2b422d9861e81bf3a@huawei.com> Accept-Language: zh-CN, en-US Content-Language: zh-CN X-MS-Has-Attach: X-MS-TNEF-Correlator: x-originating-ip: [10.174.176.252] Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: base64 MIME-Version: 1.0 X-CFilter-Loop: Reflected Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org V2lsbGVtIGRlIEJydWlqbiA8d2lsbGVtZGVicnVpam4ua2VybmVsQGdtYWlsLmNvbT4gd3JvdGU6 DQo+T24gRnJpLCBBdWcgMTQsIDIwMjAgYXQgMTA6MTcgQU0gbGlubWlhb2hlIDxsaW5taWFvaGVA aHVhd2VpLmNvbT4gd3JvdGU6DQo+Pg0KPg0KPkkgZG9uJ3QgdGhpbmsgdGhhdCBjYW4gaGFwcGVu Lg0KPg0KPlRoZSBxdWVzdGlvbiBpcyB3aGVuIHRoaXMgYnJhbmNoIGlzIGZhbHNlDQo+DQo+ICAg ICAgICAgICAgICAgIG5leHQgPSAodTMyKWF0b21pY19yZWFkKCZzay0+c2tfemNrZXkpOw0KPiAg ICAgICAgICAgICAgICBpZiAoKHUzMikodWFyZy0+aWQgKyB1YXJnLT5sZW4pID09IG5leHQpIHsN Cj4NCj5JIGNhbm5vdCBjb21lIHVwIHdpdGggYSBjYXNlLiBJIHRoaW5rIGl0IG1pZ2h0IGJlIHZl c3RpZ2lhbC4gVGhlIGdvYWwgaXMgdG8gZW5zdXJlIHRvIGFwcGVuZCBvbmx5IGEgY29uc2VjdXRp dmUgcmFuZ2Ugb2Ygbm90aWZpY2F0aW9uIElEcy4NCj5FYWNoIG5vdGlmaWNhdGlvbiBJRCBjb3Jy ZXNwb25kcyB0byBhIHNlbmRtc2cgaW52b2NhdGlvbiB3aXRoIE1TR19aRVJPQ09QWS4gSW4gYm90 aCBUQ1AgYW5kIFVEUCB3aXRoIGNvcmtpbmcsIGRhdGEgaXMgb3JkZXJlZCBhbmQgYWNjZXNzIHRv IGNoYW5nZXMgdG8gdGhlc2UgZmllbGRzIGhhcHBlbiB0b2dldGhlciBhcyBhIHRyYW5zYWN0aW9u Og0KPg0KPiAgICAgICAgICAgICAgICAvKiByZWFsbG9jIG9ubHkgd2hlbiBzb2NrZXQgaXMgbG9j a2VkIChUQ1AsIFVEUCBjb3JrKSwNCj4gICAgICAgICAgICAgICAgICogc28gdWFyZy0+bGVuIGFu ZCBza196Y2tleSBhY2Nlc3MgaXMgc2VyaWFsaXplZA0KPiAgICAgICAgICAgICAgICAgKi8NCg0K U28gd2hhdCBJIGNvbmNlcm5lZCBpcyBqdXN0IGEgdGhlb3JldGljYWxseSBwcm9ibGVtcy4gSWYg d2UgY2FuIGFsd2F5cyBndWFyYW50ZWUgc29ja196ZXJvY29weV9yZWFsbG9jIG9ubHkgcmV0dXJu cyB0aGUgZXhpc3RpbmcgdWFyZyBvciBOVUxMIHdoZW4gb24gc2tiX3pjb3B5KHNrYiksDQpiYWQg dGhpbmdzIHdvbid0IGhhcHBlbi4NCg0KTWFueSB0aGFua3MgZm9yIHlvdXIgZGV0YWlsZWQgZXhw bGFpbmF0aW9uLg0KDQo=