Generalizd architecture for GEDF-style scheduelrs to reduce code redundancy.wip-refactored-gedf

This patch hoists nearly all of the non-GEDF specific code (decision
making (GEDF) vs. carrying out decisions (non-specific)) out of
sched_gsn_edf.c and into a new generic sched_global_plugin architecture.
A new struct, sched_global_plugin, provides the needed hooks for other
GEDF-style schedulers to reuse the non-scheduler-specific code.

You may conceptualize this new architecture (in OO-terms) as:
* sched_plugin is the parent of sched_global_plugin.
* sched_global_plugin is the parent of gsn_edf_plugin.
* Both sched_plugin and sched_global_plugin are "pure virtual"

This patch drastically reduces the amount of code needed to support
G-EDF, EDZL, (Adaptive) EDZL, etc.

1 files changed, 1 insertions, 1 deletions

diff --git a/litmus/litmus.c b/litmus/litmus.c
index 8efd3f9ef7ee..744880c90eb5 100644
--- a/litmus/litmus.c
+++ b/litmus/litmus.c
@@ -416,7 +416,7 @@ int switch_sched_plugin(struct sched_plugin* plugin)
                 ret = litmus->deactivate_plugin();
                 if (0 != ret)
                         goto out;
-                ret = plugin->activate_plugin();
+                ret = plugin->activate_plugin(plugin);
                 if (0 != ret) {
                         printk(KERN_INFO "Can't activate %s (%d).\n",
                                plugin->plugin_name, ret);