[Unionfs] NFS export unionfs-2.5 and kernel 2.6.26.5

Josef 'Jeff' Sipek jeffpc at josefsipek.net
Sun Nov 2 15:35:06 EST 2008


On Fri, Oct 03, 2008 at 08:32:26AM -0500, Steven Hein wrote:
...
> If NFS exports aren't currently working, is this
> something that is in the works?   (Based on what
> I've read, it appears that this worked sometime
> in the past.....).     If there is work going on, are
> there any git trees that contain the work?

The "worked sometime in the past" is more of a...there was a horrible hack
that used dentry pointers as the NFS cookie. Then, when it received the
cookie from the client, it just blindly dereferenced the extracted pointers.
Lovely, isn't it?  :)

This was back in the days of unionfs 1.x. The major rewrite, versions 2.x,
_never_ had this problem as they never had export ops.

As Erez pointed out, there was some work to do things the right way (ODF). I
have no idea what the current status of that is.

Josef 'Jeff' Sipek.

-- 
UNIX is user-friendly ... it's just selective about who its friends are


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