break deadlines in EDF schemes by PID

Adds the new priority comparison function edf_higher_prio(). By the use of
PIDs priorities are now unique. The edf_common.c code uses the new
function. Does not handle priority inheritance yet.

1 files changed, 3 insertions, 0 deletions

diff --git a/include/linux/edf_common.h b/include/linux/edf_common.h
index 7a222d419c..3b6a1de457 100644
--- a/include/linux/edf_common.h
+++ b/include/linux/edf_common.h
@@ -26,6 +26,9 @@ typedef struct _edf_domain {
 
 void edf_domain_init(edf_domain_t *edf, edf_check_resched_needed_t f);
 
+int edf_higher_prio(struct task_struct* first, 
+                    struct task_struct* second);
+
 void __add_ready(edf_domain_t* edf, struct task_struct *new);
 void __add_release(edf_domain_t* edf, struct task_struct *task);