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=-6.8 required=3.0 tests=BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SIGNED_OFF_BY,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 B8B33C433E2 for ; Wed, 16 Sep 2020 01:40:05 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 74EEC20936 for ; Wed, 16 Sep 2020 01:40:05 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726291AbgIPBkE (ORCPT ); Tue, 15 Sep 2020 21:40:04 -0400 Received: from szxga02-in.huawei.com ([45.249.212.188]:3101 "EHLO huawei.com" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1726159AbgIPBkD (ORCPT ); Tue, 15 Sep 2020 21:40:03 -0400 Received: from dggeme751-chm.china.huawei.com (unknown [172.30.72.53]) by Forcepoint Email with ESMTP id 3C33AF7914ACF9FF1D5E; Wed, 16 Sep 2020 09:39:56 +0800 (CST) Received: from dggeme753-chm.china.huawei.com (10.3.19.99) by dggeme751-chm.china.huawei.com (10.3.19.97) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256_P256) id 15.1.1913.5; Wed, 16 Sep 2020 09:39:55 +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; Wed, 16 Sep 2020 09:39:55 +0800 From: linmiaohe To: Christian Brauner CC: "akpm@linux-foundation.org" , "peterz@infradead.org" , "mingo@kernel.org" , "ebiederm@xmission.com" , "christian@kellner.me" , "surenb@google.com" , "areber@redhat.com" , "shakeelb@google.com" , "cyphar@cyphar.com" , "tglx@linutronix.de" , "linux-kernel@vger.kernel.org" Subject: Re: [PATCH] fork: Use helper function mapping_allow_writable() in dup_mmap() Thread-Topic: [PATCH] fork: Use helper function mapping_allow_writable() in dup_mmap() Thread-Index: AdaLyeXS7QxoEIqgoESUKoVD51FRKg== Date: Wed, 16 Sep 2020 01:39:55 +0000 Message-ID: <3eaffcde4b28478483cd24154fc04836@huawei.com> Accept-Language: zh-CN, en-US Content-Language: zh-CN X-MS-Has-Attach: X-MS-TNEF-Correlator: x-originating-ip: [10.174.176.109] 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 Q2hyaXN0aWFuIEJyYXVuZXIgPGNocmlzdGlhbi5icmF1bmVyQHVidW50dS5jb20+IHdyb3RlOg0K PiBPbiBTdW4sIFNlcCAxMywgMjAyMCBhdCAwNToyNDoxNUFNIC0wNDAwLCBNaWFvaGUgTGluIHdy b3RlOg0KPj4gVXNlIGhlbHBlciBmdW5jdGlvbiBtYXBwaW5nX2FsbG93X3dyaXRhYmxlKCkgdG8g YXRvbWljX2luYyBpX21tYXBfd3JpdGFibGUuDQo+PiANCj4+IFNpZ25lZC1vZmYtYnk6IE1pYW9o ZSBMaW4gPGxpbm1pYW9oZUBodWF3ZWkuY29tPg0KPj4gLS0tDQo+DQo+SGV5IE1pYW9oZSwNCj4N Cj5UaGFua3MgZm9yIHRoZSBwYXRjaCENCj5QZXIgc2UgdGhlcmUncyBub3RoaW5nIGFnYWluc3Qg dXNpbmcgYSBwcm9wZXIgaGVscGVyIHdoZW4gaXQgZXhpc3RzLg0KPkJ1dCBpdCBoYXMgYWxyZWFk eSBiZWVuIHBvaW50ZWQgb3V0IHRoYXQgdGhpcyBuZWVkcyBhIHByb3BlciBjb21taXQgbWVzc2Fn ZSB3aXRoIG1vcmUgcmF0aW9uYWxlLiBCdXQgSSdtIG90aGVyd2lzZSBoYXBweSB0byB0YWtlIHRo aXMuDQo+DQoNCk1hbnkgdGhhbmtzIGZvciB5b3VyIHJlcGx5Lg0KRXJpYyBoYXZlIGtpbmRseSBw b2ludGVkIHRoaXMgb3V0LiBJIHRoaW5rIEkgc2hvdWxkIHByb3ZpZGUgYSBwcm9wZXIgY29tbWl0 IG1lc3NhZ2Ugd2l0aCBtb3JlIHJhdGlvbmFsZSBpbiB2Mi4NClRoYW5rcyBhZ2Fpbi4NCg0KPlRo YW5rcyENCj5DaHJpc3RpYW4NCg==