pjd 9123873999 - Use wait-free method to manage ui_sbsize and ui_proccnt fields in the
uidinfo structure. This entirely removes contention observed on the
  ui_mtxp mutex (as it is now gone).
- Convert the uihashtbl_mtx mutex to a rwlock, as most of the time we just
  need to read-lock it.

Reviewed by:	jhb, jeff, kris & others
Tested by:	kris
2008-03-16 21:29:02 +00:00
..
2008-03-13 17:54:21 +00:00