Subject: Re: recent nfs change causes autofs regression
From: Trond Myklebust <trond.myklebust@fys.uio.no>
To: Ian Kent <raven@themaw.net>
Cc: David Howells <dhowells@redhat.com>, Bill Davidsen <davidsen@tmr.com>,
       Linus Torvalds <torvalds@linux-foundation.org>,
       Frank van Maarseveen <frankvm@frankvm.com>,
       Hua Zhong <hzhong@gmail.com>,
       "'Linux Kernel Mailing List'" <linux-kernel@vger.kernel.org>,
       akpm@linux-foundation.org
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Date: Wed, 05 Sep 2007 17:26:32 +0100
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On Wed, 2007-09-05 at 20:44 +0800, Ian Kent wrote:
> On Tue, 2007-09-04 at 08:54 +0100, David Howells wrote:
> > Bill Davidsen <davidsen@tmr.com> wrote:
> > 
> > > mount /base on point1 - rw	[ hopefully really r/w ]
> > > mount /base on point2 - ro	[ hopefully r/o ]
> > 
> > I think Al Viro probably has the right idea as to how to fix this: Move the
> > R/O R/W flag into vfsmount and count the number of R/W vfsmounts in the
> > superblock.  I never quite finished implementing the patch to do this, but I
> > can go back and revisit it.
> 
> But what about mounting with different protocol, tcp vs udp for example.
> 
> Ian

With the patch that Linus merged, we will fork off a new superblock.

Trond

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