[EDF-fm] Add required extensions to rt_task and rt_job

- rt_task: for each task, add fraction (num/denom) of execution cost
  that should be handled by each processor (for EDF-fm max 2
  processors).

- rt_job: add number of jobs already managed by the CPUs (for migrating
  tasks this is needed to determine on which CPU the next job should
  execute).

1 files changed, 13 insertions, 0 deletions

diff --git a/include/litmus/rt_param.h b/include/litmus/rt_param.h
index 9d17fd3863d9..1c63b006f50e 100644
--- a/include/litmus/rt_param.h
+++ b/include/litmus/rt_param.h
@@ -50,6 +50,14 @@ struct rt_task {
          * so that one can use: cpus[nr_cpus]
          */
         unsigned int    nr_cpus;
+        /* EDF-fm migrating tasks, fraction of this task exec_cost
+         * that the processors should handle.
+         * We keep the fraction divided in num/denom : a matrix of
+         * NR_CPUS_SEMI rows * 2 columns; first column is the numerator
+         * of the fraction, second column is the denominator
+         * (in EDF-fm this is a 2*2 matrix)
+         */
+        lt_t            fraction[2][NR_CPUS_SEMI];
 };
 
 /* The definition of the data that is shared between the kernel and real-time
@@ -100,6 +108,11 @@ struct rt_job {
          * Increase this sequence number when a job is released.
          */
         unsigned int    job_no;
+
+        /* EDF-fm: number of jobs handled by this cpu
+         * (to determine next cpu for a migrating task)
+         */
+        unsigned int    cpu_job_no[NR_CPUS_SEMI];
 };
 
 struct pfair_param;