Re: Bug#443591: nfs-kernel-server: Unexporting directories no longer working

[Neil Brown <neilb@suse.de>]

On Sunday September 23, sgunderson@bigfoot.com wrote:
> On Sat, Sep 22, 2007 at 10:42:31AM -0700, David Liontooth wrote:
> > Package: nfs-kernel-server
> > Version: 1:1.1.0-13
> > Severity: normal
> > 
> > 
> > The command to unexport a directory appears to no longer have any effect.
> > 
> > I issue "exportfs -u :/tv01" and "exportfs" shows /tv01 still exported; consequently, I cannot unmount it.
> > In contrast, removing /tv01 from /etc/exports and then running exportfs -ra successfully removes the export.
> > 
> > This used to work fine.
> 
> Sending this on to upstream, as I cannot see any good reason offhand why it
> should not work.

Some simple testing and code review suggests that this works as
expected.  However it is possible that I am expecting something
different to you, or testing something different.

You say you:
    exportfs -u :/tv01

What exactly is in your /etc/exports that this is expected to revert?
The obvious answer would be

    /tv01  (some,flags,here)

however "exportfs" will complain about that, so I suspect not.

Maybe you have:

    /tv01 somehost(someflags)  otherhost(otherflags)

and you expect
    exportfs -u :/tv01

to unexport /tv01 to all hosts?  I would agree that doesn't work.  Did
it ever?  What version?

As an aside, you can always:
   exportfs -f
and then unmount filesystems.  They will be free to be unmounted until
the next NFS access request arrives.  Maybe that will server your
needs?

NeilBrown

-------------------------------------------------------------------------
This SF.net email is sponsored by: Microsoft
Defy all challenges. Microsoft(R) Visual Studio 2005.
http://clk.atdmt.com/MRT/go/vse0120000070mrt/direct/01/
_______________________________________________
NFS maillist  -  NFS@lists.sourceforge.net
https://lists.sourceforge.net/lists/listinfo/nfs