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 F19C07F50 for ; Mon, 6 Jul 2015 19:29:56 -0500 (CDT) Received: from cuda.sgi.com (cuda2.sgi.com [192.48.176.25]) by relay2.corp.sgi.com (Postfix) with ESMTP id D12AE304053 for ; Mon, 6 Jul 2015 17:29:53 -0700 (PDT) Received: from ipmail06.adl6.internode.on.net (ipmail06.adl6.internode.on.net [150.101.137.145]) by cuda.sgi.com with ESMTP id NjrHlKkdkvUMBpbl for ; Mon, 06 Jul 2015 17:29:51 -0700 (PDT) Date: Tue, 7 Jul 2015 10:24:30 +1000 From: Dave Chinner Subject: Re: regarding journaling mode Message-ID: <20150707002430.GV7943@dastard> References: MIME-Version: 1.0 Content-Disposition: inline In-Reply-To: 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: Rakesh Patel Cc: xfs@oss.sgi.com On Mon, Jul 06, 2015 at 11:38:32AM +0530, Rakesh Patel wrote: > Hi, > > I come to know XFS is using writeback journaling mode. Can you explain how you came to that conclusion? > As per the > journaling guide, writeback is unsafe which does not preserve data and > metadata write synchronization. What journalling guide would that be? Please quote your sources when asking questions. > I really want to know reason behind to choose writeback mode for journaling > in XFS. Metadata updates after data IO completion are used instead of ordering data writeback operations through the journal. Cheers, Dave. -- Dave Chinner david@fromorbit.com _______________________________________________ xfs mailing list xfs@oss.sgi.com http://oss.sgi.com/mailman/listinfo/xfs