K 10 svn:author V 2 kp K 8 svn:date V 27 2018-02-01T07:52:06.647381Z K 7 svn:log V 265 pf: Avoid warning without INVARIANTS When INVARIANTS is not set the 'last' variable is not used, which can generate compiler warnings. If this invariant is ever violated it'd result in a KASSERT failure in refcount_release(), so this one is not strictly required. END