Core LITMUS^RT infrastructure.

to be merged:
- SRP (sched.c)
- feather-trace implementation (to be fixed)
- sync support (KConfig)

litmus_sched_class implements 3 new methods:
.prio_changed:
  void
.switched_to:
  void
.get_rr_interval:
  return infinity (i.e., 0)

1 files changed, 7 insertions, 0 deletions

diff --git a/include/linux/sched.h b/include/linux/sched.h
index 75e6e60bf583..bb046c0adf99 100644
--- a/include/linux/sched.h
+++ b/include/linux/sched.h
@@ -38,6 +38,7 @@
 #define SCHED_BATCH             3
 /* SCHED_ISO: reserved but not implemented yet */
 #define SCHED_IDLE              5
+#define SCHED_LITMUS            6
 /* Can be ORed in to make sure the process is reverted back to SCHED_NORMAL on fork */
 #define SCHED_RESET_ON_FORK     0x40000000
 
@@ -94,6 +95,8 @@ struct sched_param {
 
 #include <asm/processor.h>
 
+#include <litmus/rt_param.h>
+
 struct exec_domain;
 struct futex_pi_state;
 struct robust_list_head;
@@ -1505,6 +1508,10 @@ struct task_struct {
         int make_it_fail;
 #endif
         struct prop_local_single dirties;
+
+        /* LITMUS RT parameters and state */
+        struct rt_param rt_param;
+
 #ifdef CONFIG_LATENCYTOP
         int latency_record_count;
         struct latency_record latency_record[LT_SAVECOUNT];