vnode to device name in SUN OS 4.0.3

[Christopher M Songer]

Hi,
     I'm poking around in kmem looking for amount of memory swapped
by disk. I get the symbol _swapinfo which will give me a vode of
the device. How do I get the name of the drive from the vnode. I've
traced it as far as I can and can't figure it out. It is however,
driving me batty. I can get a vfs, and an rnode as well, but none of
these seem to help. Any sort of clue or advice would be wonderful.

Chris Songer
songer at ecn.purdue.edu