commit d0bc889a8aa8cd80ec5a048b5825c82bd34edefb
from: rsc <devnull@localhost>
date: Wed Dec 17 04:35:09 2003 UTC

add Lock to struct Ref.

commit - 49588d5d9089589ccda28c41aae90c29d6f72787
commit + d0bc889a8aa8cd80ec5a048b5825c82bd34edefb
blob - 0eb02b5291e09555a3a08f92682fa97b74a4cc1c
blob + b4a1c946f74aa68258cbd3add57a77a8942c96f4
--- include/thread.h
+++ include/thread.h
@@ -60,6 +60,7 @@ struct Alt {
 };
 
 struct Ref {
+	Lock lk;
 	long ref;
 };