1 files changed, 5 insertions, 2 deletions

diff --git a/include/litmus/rt_param.h b/include/litmus/rt_param.h
index a767e52882f4..5411f1251e57 100644
--- a/include/litmus/rt_param.h
+++ b/include/litmus/rt_param.h
@@ -129,8 +129,11 @@ struct pgm_consume
 struct rt_pgm {
         struct pgm_produce *produce;    /* output and current state */
         struct pgm_consume *consume;    /* input constraints and current state */ 
-        struct task_struct *root;               /* root node of the PGM */
-//      struct task_struct *src;                /* only not NULL if task is sink */
+        struct task_struct *src;                /* root node of the PGM */
+
+        /* only valid for source nodes */
+        struct completion       children_ready;
+        atomic_t                        nr_children_pending;
 };
 
 #endif /* end PGM */