K 10 svn:author V 7 rwatson K 8 svn:date V 27 2009-06-25T16:35:28.362520Z K 7 svn:log V 348 Add address list locking for in6_ifaddrhead/ia_link: as with locking for in_ifaddrhead, we stick with an rwlock for the time being, which we will revisit in the future with a possible move to rmlocks. Some pieces of code require significant further reworking to be safe from all classes of writer-writer races. Reviewed by: bz MFC after: 6 weeks END