VFS MFC testers wanted

[Jeff Roberson]

I plan to MFC all of this lovely stuff for 6.1:

http://www.chesapeake.net/~jroberson/vfsmfc.diff

I'm looking for people who are willing to patch their stable boxes and 
test this.  This has the following changes in it:

1)  Improved debugging with DEBUG_LOCKS via the new stack(9) api.
2)  Fixed an INACTIVE leak.
3)  Fixed several unmount races.
4)  Fixed several nullfs unmount issues.
5)  Some more Giant related VFS fixes and asserts.
6)  Fixed the quota deadlock.

These problems should be rare enough that most of you have not seen them. 
So just let me know if this introduces any new problems etc.  I will be 
MFCing within a week.

Thanks,
Jeff