Return-Path: Received: from fieldses.org ([174.143.236.118]:34605 "EHLO fieldses.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1756697Ab1CXRvK (ORCPT ); Thu, 24 Mar 2011 13:51:10 -0400 Date: Thu, 24 Mar 2011 13:51:06 -0400 From: "J. Bruce Fields" To: Christoph Hellwig Cc: Adam Lackorzynski , linux-nfs@vger.kernel.org, xfs@oss.sgi.com Subject: Re: 2.6.38: Quota over NFS4 Message-ID: <20110324175106.GB1886@fieldses.org> References: <20110320213111.GO11929@os.inf.tu-dresden.de> <20110320214316.GB26036@fieldses.org> <20110321184043.GC4992@os.inf.tu-dresden.de> <20110321222301.GB472@fieldses.org> <20110322221305.GA5857@os.inf.tu-dresden.de> <20110323150328.GD23418@fieldses.org> <20110323174052.GE5005@os.inf.tu-dresden.de> <20110323190632.GA26306@fieldses.org> <20110323223017.GA5177@os.inf.tu-dresden.de> <20110324171704.GA1784@infradead.org> Content-Type: text/plain; charset=us-ascii In-Reply-To: <20110324171704.GA1784@infradead.org> Sender: linux-nfs-owner@vger.kernel.org List-ID: MIME-Version: 1.0 On Thu, Mar 24, 2011 at 01:17:05PM -0400, Christoph Hellwig wrote: > On Wed, Mar 23, 2011 at 11:30:17PM +0100, Adam Lackorzynski wrote: > > I probably mistyped something and thus bisected again: > > maybe this is just a symptom. When was the nfs4 code converted > to just use a single open struct file, and what are the lifetime > rules for it? It would easily be that a long alive file might > make XFS keep persistent preallocations longer or similar issues. Definitely, the commit he's bisect to there seems much more likely to be a culprit. I'll take a closer look.... > Adam, can you create a loop filesystem with ext3 or something else > on it and see if the problem is XFS-specific? Originally it sounded like he was able to reproduce this only on one specific filesystem so I wondered whether there was something particular to that filesystem. --b.