XFS source before porting to linux

[<crossfs@xxxxxxxxxxx>]

Hi,

How can I get the reference XFS source before it was ported to Linux, i.e I 
want the vanilla XFS source that used VFS & buf interface instead of these 
linux pagebuf stuff. That way it would be lot easier to port since I 
already have FreeBSD VFS & buf interface in NT.

If it is already in CVS please let me know what release tag to specify for 
checkout.

thanks