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,SPF_HELO_NONE,SPF_PASS, USER_AGENT_GIT 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 61022C433FE for ; Fri, 4 Dec 2020 02:30:42 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 0876E22512 for ; Fri, 4 Dec 2020 02:30:41 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726535AbgLDCal (ORCPT ); Thu, 3 Dec 2020 21:30:41 -0500 Received: from szxga04-in.huawei.com ([45.249.212.190]:8245 "EHLO szxga04-in.huawei.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726057AbgLDCal (ORCPT ); Thu, 3 Dec 2020 21:30:41 -0500 Received: from DGGEMS412-HUB.china.huawei.com (unknown [172.30.72.58]) by szxga04-in.huawei.com (SkyGuard) with ESMTP id 4CnGql6kHqzkl5H; Fri, 4 Dec 2020 10:29:23 +0800 (CST) Received: from huawei.com (10.174.176.134) by DGGEMS412-HUB.china.huawei.com (10.3.19.212) with Microsoft SMTP Server id 14.3.487.0; Fri, 4 Dec 2020 10:29:51 +0800 From: Liu Zixian To: CC: , , , , , , , Subject: Re: Re: [PATCH v2] fix mmap return value when vma is merged after call_mmap() Date: Fri, 4 Dec 2020 10:29:50 +0800 Message-ID: <20201204022950.1696-1-liuzixian4@huawei.com> X-Mailer: git-send-email 2.21.0.windows.1 In-Reply-To: <20201203142537.c69ab696573e63d54becff07@linux-foundation.org> References: <20201203142537.c69ab696573e63d54becff07@linux-foundation.org> MIME-Version: 1.0 Content-Transfer-Encoding: 7BIT Content-Type: text/plain; charset=US-ASCII X-Originating-IP: [10.174.176.134] X-CFilter-Loop: Reflected Precedence: bulk List-ID: X-Mailing-List: stable@vger.kernel.org > Has this bug actually been observed at runtime, or is it a theoretical > from-code-inspection thing? We have a driver which changes vm_flags, and this bug is found by our testcases. Thanks to everyone for your review and email instructions, I will do better next time.