--- systemd-204-patched/src/core/service.c.orig	2013-09-26 23:27:25.765405876 +1000
+++ systemd-204-patched/src/core/service.c	2013-09-26 23:41:49.011428993 +1000
@@ -2642,6 +2642,9 @@ static int service_serialize(Unit *u, FI
         if (s->exec_context.var_tmp_dir)
                 unit_serialize_item(u, f, "var-tmp-dir", s->exec_context.var_tmp_dir);
 
+        if (s->forbid_restart) 
+                unit_serialize_item(u, f, "forbid_restart", yes_no(s->forbid_restart));
+
         return 0;
 }
 
@@ -2776,7 +2779,15 @@ static int service_deserialize_item(Unit
                         return log_oom();
 
                 s->exec_context.var_tmp_dir = t;
-        } else
+        } else if (streq(key, "forbid_restart")) {
+                int b;
+
+                b = parse_boolean(value);
+                if (b < 0)
+                        log_debug_unit(u->id, "Failed to parse forbid_restart value %s", value);
+                else
+                        s->forbid_restart = b;
+        } else 
                 log_debug_unit(u->id, "Unknown serialization key '%s'", key);
 
         return 0;