 - Lock Giant if needed around the call to vnode_create_vobject().  This is    only important if devfs is not mpsafe.
 - Lock Giant if needed around the call to vnode_create_vobject().  This is
   only important if devfs is not mpsafe.

Sponsored by:	Isilon Systems, Inc.
Found by:	kris

jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase