lsof and open files from the nfs-server

[Jesper Krogh <jesper@krogh.cc>]

Hi.

Quite often when you have to umount a fileshare you get the
message "Device or resource busy". Typically I traverse through
the output of lsof | grep mountpoint and stop processes or kill
until I can safely umount.

But the nfs-kernel-server does not register its open files, so
seen from userspace is it extremely hard to find out that is actually
is the nfs-server that prevents you from being able to umount
the filesystems.

Would it be possible to register the open files the same place
so administrators can see them?

... basically just a feature-request from one who just spend an hour on 
that.

-- 
Jesper