score: Introduce scheduler nodes

Rename scheduler per-thread information into scheduler nodes using
Scheduler_Node as the base type.  Use inheritance for specialized
schedulers.

Move the scheduler specific states from the thread control block into
the scheduler node structure.

Validate the SMP scheduler node state transitions in case RTEMS_DEBUG is
defined.

1 files changed, 3 insertions, 6 deletions

diff --git a/cpukit/score/src/scheduleredfyield.c b/cpukit/score/src/scheduleredfyield.c
index 8f8786ad1d..9eb07825fe 100644
--- a/cpukit/score/src/scheduleredfyield.c
+++ b/cpukit/score/src/scheduleredfyield.c
@@ -28,20 +28,17 @@ void _Scheduler_EDF_Yield(
 {
   Scheduler_EDF_Context *context =
     _Scheduler_EDF_Get_context( scheduler );
+  Scheduler_EDF_Node    *node = _Scheduler_EDF_Node_get( the_thread );
   ISR_Level              level;
 
-  Scheduler_EDF_Per_thread *thread_info =
-    (Scheduler_EDF_Per_thread *) the_thread->scheduler_info;
-  RBTree_Node *thread_node = &(thread_info->Node);
-
   _ISR_Disable( level );
 
   /*
    * The RBTree has more than one node, enqueue behind the tasks
    * with the same priority in case there are such ones.
    */
-  _RBTree_Extract( &context->Ready, thread_node );
-  _RBTree_Insert( &context->Ready, thread_node );
+  _RBTree_Extract( &context->Ready, &node->Node );
+  _RBTree_Insert( &context->Ready, &node->Node );
 
   _ISR_Flash( level );