Implementation of EDZL

This patch implements the global EDZL scheduler.  It is based
heavily on the GSN-EDF implementation.  Timers are used to detect
zero-laxity points and issue the proper rescheduling operations.

1 files changed, 24 insertions, 0 deletions

diff --git a/include/litmus/edzl_common.h b/include/litmus/edzl_common.h
new file mode 100644
index 000000000000..d9ecfa1a70f9
--- /dev/null
+++ b/include/litmus/edzl_common.h
@@ -0,0 +1,24 @@
+/*
+ * EDZL common data structures and utility functions shared by all EDZL
+ * based scheduler plugins
+ */
+
+/* CLEANUP: Add comments and make it less messy.
+ *
+ */
+
+#ifndef __UNC_EDZL_COMMON_H__
+#define __UNC_EDZL_COMMON_H__
+
+#include <litmus/rt_domain.h>
+
+void edzl_domain_init(rt_domain_t* rt, check_resched_needed_t resched,
+                     release_jobs_t release);
+
+int edzl_higher_prio(struct task_struct* first,
+                    struct task_struct* second);
+
+int edzl_ready_order(struct bheap_node* a, struct bheap_node* b);
+
+int edzl_preemption_needed(rt_domain_t* rt, struct task_struct *t);
+#endif