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 A9021C3F2CD for ; Fri, 6 Mar 2020 04:34:19 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 88CF420728 for ; Fri, 6 Mar 2020 04:34:19 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726891AbgCFEeS (ORCPT ); Thu, 5 Mar 2020 23:34:18 -0500 Received: from outgoing-auth-1.mit.edu ([18.9.28.11]:48037 "EHLO outgoing.mit.edu" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1726251AbgCFEeS (ORCPT ); Thu, 5 Mar 2020 23:34:18 -0500 Received: from callcc.thunk.org (pool-72-93-95-157.bstnma.fios.verizon.net [72.93.95.157]) (authenticated bits=0) (User authenticated as tytso@ATHENA.MIT.EDU) by outgoing.mit.edu (8.14.7/8.12.4) with ESMTP id 0264YCcg025240 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Thu, 5 Mar 2020 23:34:12 -0500 Received: by callcc.thunk.org (Postfix, from userid 15806) id 0A1C542045B; Thu, 5 Mar 2020 23:34:12 -0500 (EST) Date: Thu, 5 Mar 2020 23:34:12 -0500 From: "Theodore Y. Ts'o" To: Qiujun Huang Cc: adilger.kernel@dilger.ca, linux-ext4@vger.kernel.org, linux-kernel@vger.kernel.org Subject: Re: [PATCH] ext4: fix a data race at inode->i_disksize Message-ID: <20200306043412.GN20967@mit.edu> References: <1582556566-3909-1-git-send-email-hqjagain@gmail.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <1582556566-3909-1-git-send-email-hqjagain@gmail.com> Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Mon, Feb 24, 2020 at 11:02:46PM +0800, Qiujun Huang wrote: > KCSAN find inode->i_disksize could be accessed concurrently. > > BUG: KCSAN: data-race in ext4_mark_iloc_dirty / ext4_write_end > ... Thanks, applied. - Ted