read-only checking must be done by the filesystem layers

add proper locking and lookup routines; document other needed actions

add null_lock to check VXLOCK and cancel the interlock before bypassing

check for null vp before dereferrencing it (from donn@bsdi.com)

update to use LIST hash structures

4.4BSD snapshot (revision 8.1); add 1993 to copyright

move to rev 7; new include location; misc syntax niggles

cleanup

Working, with vnode caching.

No refcount problems, but no caching.

a working version: it does nothing, correctly

first draft

the great variable renaming

date and time created 92/07/07 13:54:46 by johnh