From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from cuda.sgi.com (cuda3.sgi.com [192.48.176.15]) by oss.sgi.com (8.14.3/8.14.3/SuSE Linux 0.8) with SMTP id p2EAXTRv065406 for ; Mon, 14 Mar 2011 05:33:40 -0500 Received: from bombadil.infradead.org (localhost [127.0.0.1]) by cuda.sgi.com (Spam Firewall) with ESMTP id F02CB138EB3B for ; Mon, 14 Mar 2011 03:36:23 -0700 (PDT) Received: from bombadil.infradead.org (bombadil.infradead.org [18.85.46.34]) by cuda.sgi.com with ESMTP id nABEVASdtcggEIIl for ; Mon, 14 Mar 2011 03:36:23 -0700 (PDT) Date: Mon, 14 Mar 2011 06:36:22 -0400 From: Christoph Hellwig Subject: Re: Does XFS ever relocate extents after they are on disk? Message-ID: <20110314103622.GA715@infradead.org> References: <903E14DC-D9EA-4BDC-8D43-FBB9AB4127BC@cs.ucsd.edu> <20110311100936.GA11879@infradead.org> 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 Sender: xfs-bounces@oss.sgi.com Errors-To: xfs-bounces@oss.sgi.com To: Steven Swanson Cc: xfs@oss.sgi.com On Fri, Mar 11, 2011 at 02:29:30PM -0800, Steven Swanson wrote: > Christoph, > > Thanks for the quick reply. > > Here's another question: If I write data to an extent that already exists, am I also guaranteed that the new data will overwrite the same location? For instance, will XFS ever relocate an extent on a write in order to expand the extent? Right now it won't. I wouldn't call that a guaranteed though - e.g. if we're ever going to finish off storig file data in the inode for small files we'll have to migrate them out of the inode once we create the first extent. _______________________________________________ xfs mailing list xfs@oss.sgi.com http://oss.sgi.com/mailman/listinfo/xfs