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Date:	Fri, 25 Feb 2011 17:45:05 -0700
From:	Eric Blake <eblake AT redhat DOT com>
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Subject:	Re: Please test latest developer snapshot
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On 02/25/2011 05:24 PM, Vorfeed Canal wrote:
> On Mon, Feb 21, 2011 at 6:20 PM, Thomas Wolff <towo AT towo DOT net> wrote:
>> And this is not an artificial limitation but there is no way that this
>> could conceivably work.
>=20
> What do you mean "there is no way that this could conceivably work"?
>=20
> It worked in Linux till it was explicitly forbidden...

Well, there's other strange effects with operating on "." and "..".  At
one point, the Hurd operating system tried to honor
rename("subdir/..","other") (similar to this discussion about
rmdir(".")), with the net result of deadlocking the filesystem and
making all subsequent syscalls fail with EIEIO ("the computer bought the
farm").  There's a reason that POSIX forbids some operations on these
names, because they are too prone to bad implementations royally
screwing up your system.

--=20
Eric Blake   eblake AT redhat DOT com    +1-801-349-2682
Libvirt virtualization library http://libvirt.org


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