tadd Lock to struct Ref. - plan9port - [fork] Plan 9 from user space
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       ---
   DIR commit d0bc889a8aa8cd80ec5a048b5825c82bd34edefb
   DIR parent 49588d5d9089589ccda28c41aae90c29d6f72787
  HTML Author: rsc <devnull@localhost>
       Date:   Wed, 17 Dec 2003 04:35:09 +0000
       
       add Lock to struct Ref.
       
       Diffstat:
         M include/thread.h                    |       1 +
       
       1 file changed, 1 insertion(+), 0 deletions(-)
       ---
   DIR diff --git a/include/thread.h b/include/thread.h
       t@@ -60,6 +60,7 @@ struct Alt {
        };
        
        struct Ref {
       +        Lock lk;
                long ref;
        };