Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752467AbXIDHvv (ORCPT ); Tue, 4 Sep 2007 03:51:51 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1751319AbXIDHvo (ORCPT ); Tue, 4 Sep 2007 03:51:44 -0400 Received: from mx1.redhat.com ([66.187.233.31]:35481 "EHLO mx1.redhat.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751300AbXIDHvn (ORCPT ); Tue, 4 Sep 2007 03:51:43 -0400 Organization: Red Hat UK Ltd. Registered Address: Red Hat UK Ltd, Amberley Place, 107-111 Peascod Street, Windsor, Berkshire, SI4 1TE, United Kingdom. Registered in England and Wales under Company Registration No. 3798903 From: David Howells In-Reply-To: <1188562298.6649.39.camel@heimdal.trondhjem.org> References: <1188562298.6649.39.camel@heimdal.trondhjem.org> <000701c7eb49$cff701c0$6fe50540$@com> <1188513433.6626.24.camel@heimdal.trondhjem.org> <1188535485.6626.85.camel@heimdal.trondhjem.org> <1188536658.6626.98.camel@heimdal.trondhjem.org> <20070831074028.GR21979@unthought.net> To: Trond Myklebust Cc: dhowells@redhat.com, Linus Torvalds , Jakob Oestergaard , Frank van Maarseveen , Hua Zhong , "'Linux Kernel Mailing List'" , akpm@linux-foundation.org Subject: Re: recent nfs change causes autofs regression X-Mailer: MH-E 8.0.3; nmh 1.2-20070115cvs; GNU Emacs 22.1.50 Date: Tue, 04 Sep 2007 08:51:13 +0100 Message-ID: <5739.1188892273@redhat.com> Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 762 Lines: 17 Trond Myklebust wrote: > - the NFSv4 delegation model breaks: the client will be using > OPEN when it could use cached opens. More importantly, when > performing an operation that requires it to return the > delegation on the aliased file, it won't know until the server > sends it a callback. Perhaps sharing could be the default on NFSv4 and non-sharing for 2 & 3? After all, NFSv4 is supposed to be able to handle local caching on disk. David - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/