Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1756894Ab3EJO2E (ORCPT ); Fri, 10 May 2013 10:28:04 -0400 Received: from mx1.redhat.com ([209.132.183.28]:23111 "EHLO mx1.redhat.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1755289Ab3EJO2B (ORCPT ); Fri, 10 May 2013 10:28:01 -0400 Date: Fri, 10 May 2013 10:27:54 -0400 From: Jeff Layton To: Miklos Szeredi Cc: linux-cifs@vger.kernel.org, Steve French , Kernel Mailing List , sjayaraman@novell.com Subject: Re: Mount failure due to restricted access to a point along the mount path Message-ID: <20130510102754.184cd90d@corrin.poochiereds.net> In-Reply-To: References: Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1578 Lines: 42 On Fri, 10 May 2013 16:13:30 +0200 Miklos Szeredi wrote: > Hi, > > A while ago this was discussed: > > http://thread.gmane.org/gmane.linux.kernel.cifs/7779 > > This is essentially a regression introduced by the shared superblock > changes in 3.0 and several SUSE customers are complaining about it. > I've created a temporary fix which reverts 29 commits related to the > shared superblock changes. It works, but it's obviously not a > permanent fix, especially since we definitely don't want to diverge > from mainline. > > Is this issue being worked on? Don't other distros have similar reports? > > Thanks, > Miklos I don't know of anyone currently working on it. There are a couple of possible approaches to fixing it, I think: 1) if the dentries to get down to the root of the mount don't already exist, then attach some sort of "placeholder" inode that can be fleshed out later if and when the dentry is accessed via other means. 2) do something like what NFS does (see commit 54ceac45). This becomes a bit more complicated due to the fact that the server may not hand out real inode numbers and we sometimes have to fake them up. #1 is probably simpler to implement, but I'll confess that I haven't thought through all of the potential problems with it. -- Jeff Layton -- 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/