K 10 svn:author V 7 rodrigc K 8 svn:date V 27 2005-08-12T02:38:20.000000Z K 7 svn:log V 199 Add NATM_LOCK() and NATM_UNLOCK() in places where npcb_add() and npcb_free() are called, in order to eliminate witness panics. This was overlooked in removal of GIANT from ATM. Reviewed by: rwatson END