From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S964942AbWIDNrB (ORCPT ); Mon, 4 Sep 2006 09:47:01 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S964940AbWIDNrA (ORCPT ); Mon, 4 Sep 2006 09:47:00 -0400 Received: from mx1.redhat.com ([66.187.233.31]:60825 "EHLO mx1.redhat.com") by vger.kernel.org with ESMTP id S964939AbWIDNq6 (ORCPT ); Mon, 4 Sep 2006 09:46:58 -0400 From: David Howells In-Reply-To: <1157376295.3240.13.camel@raven.themaw.net> References: <1157376295.3240.13.camel@raven.themaw.net> <20060901195009.187af603.akpm@osdl.org> <20060831102127.8fb9a24b.akpm@osdl.org> <20060830135503.98f57ff3.akpm@osdl.org> <20060830125239.6504d71a.akpm@osdl.org> <20060830193153.12446.24095.stgit@warthog.cambridge.redhat.com> <27414.1156970238@warthog.cambridge.redhat.com> <9849.1157018310@warthog.cambridge.redhat.com> <9534.1157116114@warthog.cambridge.redhat.com> <20060901093451.87aa486d.akpm@osdl.org> <1157130044.5632.87.camel@localhost> <28945.1157370732@warthog.cambridge.redhat.com> To: Ian Kent Cc: David Howells , Andrew Morton , Trond Myklebust , torvalds@osdl.org, steved@redhat.com, linux-fsdevel@vger.kernel.org, linux-cachefs@redhat.com, nfsv4@linux-nfs.org, linux-kernel@vger.kernel.org Subject: Re: [PATCH 0/7] Permit filesystem local caching and NFS superblock sharing [try #13] X-Mailer: MH-E 8.0; nmh 1.1; GNU Emacs 22.0.50 Date: Mon, 04 Sep 2006 14:46:41 +0100 Message-ID: <32013.1157377601@warthog.cambridge.redhat.com> Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Ian Kent wrote: > This is the point I'm trying to make. > I'm able to reproduce this with exports that don't have "nohide". > The mkdir used to return EEXIST, possibly before getting to the EACCES > test. It appears to be a change in semantic behavior and I can't see > where it is coming from. autofs expects an EEXIST but not an EACCES and > so doesn't perform the mount. I could ignore the EACCES but that would > be cheating. Here's something you can try: Look in fs/nfs/dir.c. Find nfs_lookup(). In there, find the following lines: /* If we're doing an exclusive create, optimize away the lookup */ if (nfs_is_exclusive_create(dir, nd)) goto no_entry; Comment that bit out and see what the effect it. David