export nullfs via NFS

[Andrey V. Elsukov]

Hi, All!

I want to export folder with very long pathname via NFS. This is
inconvenient. I try to mount this folder into other folder with shorter
pathname through nullfs. But nullfs can not be exported via NFS. I have
made the small patch for mountd and nullfs that allow export nullfs.
But i have one problem :)
When i mount the remote file system, i can't work with it, i get the
input/output error.
What i can do for export nullfs via NFS?
Patch can be found here: http://butcher.heavennet.ru/nullfs_export/

-- 
WBR, Andrey V. Elsukov