sched_plgn: Add fn. for reporting CPU/cluster maps

This patch adds the plugin interface "get_domain_proc_info()".
Plugins use this function to report their cpu/clustering configuration
to the user via /proc/litmus/domains and /proc/litmus/cpus.

1 files changed, 6 insertions, 0 deletions

diff --git a/include/litmus/sched_plugin.h b/include/litmus/sched_plugin.h
index 0f2fe90123db..f173dca7cd65 100644
--- a/include/litmus/sched_plugin.h
+++ b/include/litmus/sched_plugin.h
@@ -16,6 +16,8 @@
 typedef long (*activate_plugin_t) (void);
 typedef long (*deactivate_plugin_t) (void);
 
+struct domain_proc_info;
+typedef long (*get_domain_proc_info_t) (struct domain_proc_info **info);
 
 
 /********************* scheduler invocation ******************/
@@ -69,6 +71,9 @@ typedef long (*admit_task_t)(struct task_struct* tsk);
 
 typedef void (*release_at_t)(struct task_struct *t, lt_t start);
 
+/************************ misc routines ***********************/
+
+
 struct sched_plugin {
         struct list_head        list;
         /*      basic info              */
@@ -77,6 +82,7 @@ struct sched_plugin {
         /*      setup                   */
         activate_plugin_t       activate_plugin;
         deactivate_plugin_t     deactivate_plugin;
+        get_domain_proc_info_t  get_domain_proc_info;
 
         /*      scheduler invocation    */
         scheduler_tick_t        tick;