From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: with ECARTIS (v1.0.0; list xfs); Fri, 01 Aug 2008 05:32:11 -0700 (PDT) Received: from cuda.sgi.com (cuda2.sgi.com [192.48.168.29]) by oss.sgi.com (8.12.11.20060308/8.12.11/SuSE Linux 0.7) with ESMTP id m71CVik8013327 for ; Fri, 1 Aug 2008 05:31:44 -0700 Received: from ipmail01.adl6.internode.on.net (localhost [127.0.0.1]) by cuda.sgi.com (Spam Firewall) with ESMTP id BF7C434EA5E for ; Fri, 1 Aug 2008 05:32:56 -0700 (PDT) Received: from ipmail01.adl6.internode.on.net (ipmail01.adl6.internode.on.net [203.16.214.146]) by cuda.sgi.com with ESMTP id ZGkFRW4HSHMJf3oq for ; Fri, 01 Aug 2008 05:32:56 -0700 (PDT) Date: Fri, 1 Aug 2008 22:32:53 +1000 From: Dave Chinner Subject: Re: Question about extended attributes... Message-ID: <20080801123253.GG6201@disturbed> References: <48925495.7040804@tlinx.org> <4892B361.9030900@sgi.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <4892B361.9030900@sgi.com> Sender: xfs-bounce@oss.sgi.com Errors-to: xfs-bounce@oss.sgi.com List-Id: xfs To: Timothy Shimmin Cc: "Linda A. Walsh" , xfs-oss On Fri, Aug 01, 2008 at 04:55:29PM +1000, Timothy Shimmin wrote: > Hi Linda, > > Linda A. Walsh wrote: > > my man page says extended xfs attributes can have 256-byte names > > with up to 64K of data. > > > > Is there a limit on the number of extended attributes max data size or > > name size? > > > > I.e. could I have 1000 attributes with 64K of data each? > > > Yep. > > > Is there a strong reason why the file and data sizes were limited to > > 256/64K? .... > I'm not sure why 64K was chosen for a value size limit. Because changes to EAs are journalled. Hence there must be a bound size limit because log space is limited. Cheers, Dave. -- Dave Chinner david@fromorbit.com