From: Jeremy Allison Subject: Re: [PATCH 02/18] xstat: Add a pair of system calls to make extended file stats available [ver #6] Date: Thu, 22 Jul 2010 11:07:09 -0700 Message-ID: <20100722180709.GB32008@samba1> References: <30448.1279800887@redhat.com> <20100722162712.GB10352@jeremy-laptop> <1279817930.3621.14.camel@heimdal.trondhjem.org> <20100722180204.GA32008@samba1> Reply-To: Jeremy Allison Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Cc: Jeremy Allison , Trond Myklebust , Linus Torvalds , Volker.Lendecke-3ekOc4rQMZmzQB+pC5nmwQ@public.gmane.org, David Howells , linux-cifs@vger.kernel.org, linux-nfs@vger.kernel.org, samba-technical@lists.samba.org, linux-kernel@vger.kernel.org, viro@zeniv.linux.org.uk, linux-fsdevel@vger.kernel.org, linux-ext4@vger.kernel.org To: Jan Engelhardt Return-path: Received: from fn.samba.org ([216.83.154.106]:34032 "EHLO lists.samba.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752421Ab0GVSHL (ORCPT ); Thu, 22 Jul 2010 14:07:11 -0400 In-Reply-To: Sender: linux-nfs-owner@vger.kernel.org List-ID: On Thu, Jul 22, 2010 at 08:05:00PM +0200, Jan Engelhardt wrote: > > On Thursday 2010-07-22 20:02, Jeremy Allison wrote: > >On Thu, Jul 22, 2010 at 12:58:50PM -0400, Trond Myklebust wrote: > >> > >> That would make it impossible to export the filesystem with NFSv2 and > >> v3. They do rely on ctime checking for certain operations (e.g. deciding > >> when to invalidate access and acl caches). NFSv4 needs this too if the > >> filesystem has no dedicated change attribute. > >> > >> Still, I suppose the market for exporting the same filesystem with both > >> NFS and Samba is limited... > > > >Ask NetApp about that :-). They have built a rather large > >business on just that fact :-). > > What would ZFS do? :p Get sued out of existence by software patent trolls who have lost the ability to write code, apparently :-).