From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from relay.sgi.com (relay2.corp.sgi.com [137.38.102.29]) by oss.sgi.com (Postfix) with ESMTP id 8429D7CB1 for ; Tue, 22 Mar 2016 10:57:17 -0500 (CDT) Received: from cuda.sgi.com (cuda2.sgi.com [192.48.176.25]) by relay2.corp.sgi.com (Postfix) with ESMTP id 563173040E9 for ; Tue, 22 Mar 2016 08:57:17 -0700 (PDT) Received: from mx2.suse.de (mx2.suse.de [195.135.220.15]) by cuda.sgi.com with ESMTP id q2zOrGKXh5NmLpG2 (version=TLSv1 cipher=ECDHE-RSA-AES256-SHA bits=256 verify=NO) for ; Tue, 22 Mar 2016 08:57:14 -0700 (PDT) Date: Tue, 22 Mar 2016 16:57:40 +0100 From: Jan Kara Subject: XFS hole punch races Message-ID: <20160322155740.GB28772@quack.suse.cz> MIME-Version: 1.0 Content-Disposition: inline List-Id: XFS Filesystem from SGI List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Errors-To: xfs-bounces@oss.sgi.com Sender: xfs-bounces@oss.sgi.com To: stable@vger.kernel.org Cc: xfs@oss.sgi.com Hi, similarly to ext4 also XFS had races between hole punching and page faults which could result in data corruption. The fixes were merged in 4.1-rc1 but it might make sense to backport them to older stable releases given the nature of the issue. Relevant fixes are: de0e8c20ba3a65b0f15040aabbefdc1999876e6b 075a924d45cc69c75a35f20b4912b85aa98b180a e8e9ad42c1f1e1bfbe0e8c32c8cac02e9ebfb7ef 0f9160b444e4de33b65dfcd3b901358a3129461a 723cac48473358939759885a18e8df113ea96138 ec56b1f1fdc69599963574ce94cc5693d535dd64 Honza -- Jan Kara SUSE Labs, CR _______________________________________________ xfs mailing list xfs@oss.sgi.com http://oss.sgi.com/mailman/listinfo/xfs From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mx2.suse.de ([195.135.220.15]:41042 "EHLO mx2.suse.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751548AbcCVP5O (ORCPT ); Tue, 22 Mar 2016 11:57:14 -0400 Date: Tue, 22 Mar 2016 16:57:40 +0100 From: Jan Kara To: stable@vger.kernel.org Cc: xfs@oss.sgi.com, Dave Chinner Subject: XFS hole punch races Message-ID: <20160322155740.GB28772@quack.suse.cz> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline Sender: stable-owner@vger.kernel.org List-ID: Hi, similarly to ext4 also XFS had races between hole punching and page faults which could result in data corruption. The fixes were merged in 4.1-rc1 but it might make sense to backport them to older stable releases given the nature of the issue. Relevant fixes are: de0e8c20ba3a65b0f15040aabbefdc1999876e6b 075a924d45cc69c75a35f20b4912b85aa98b180a e8e9ad42c1f1e1bfbe0e8c32c8cac02e9ebfb7ef 0f9160b444e4de33b65dfcd3b901358a3129461a 723cac48473358939759885a18e8df113ea96138 ec56b1f1fdc69599963574ce94cc5693d535dd64 Honza -- Jan Kara SUSE Labs, CR