1 files changed, 13 insertions, 1 deletions

diff --git a/litmus/sched_gsn_edf.c b/litmus/sched_gsn_edf.c
index 9f256be86cf7..2a0ee50d26a2 100644
--- a/litmus/sched_gsn_edf.c
+++ b/litmus/sched_gsn_edf.c
@@ -118,6 +118,11 @@ static rt_domain_t gsnedf;
 #define gsnedf_lock (gsnedf.ready_lock)
 
 
+/* Uncomment this if you want to see all scheduling decisions in the
+ * TRACE() log.
+#define WANT_ALL_SCHED_EVENTS
+ */
+
 static int cpu_lower_prio(struct bheap_node *_a, struct bheap_node *_b)
 {
         cpu_entry_t *a, *b;
@@ -196,10 +201,12 @@ static noinline void link_task_to_cpu(struct task_struct* linked,
                         linked->rt_param.linked_on = entry->cpu;
         }
         entry->linked = linked;
+#ifdef WANT_ALL_SCHED_EVENTS
         if (linked)
                 TRACE_TASK(linked, "linked to %d.\n", entry->cpu);
         else
                 TRACE("NULL linked to %d.\n", entry->cpu);
+#endif
         update_cpu_position(entry);
 }
 
@@ -415,7 +422,9 @@ static struct task_struct* gsnedf_schedule(struct task_struct * prev)
         sleep       = exists && get_rt_flags(entry->scheduled) == RT_F_SLEEP;
         preempt     = entry->scheduled != entry->linked;
 
+#ifdef WANT_ALL_SCHED_EVENTS
         TRACE_TASK(prev, "invoked gsnedf_schedule.\n");
+#endif
 
         if (exists)
                 TRACE_TASK(prev,
@@ -480,13 +489,14 @@ static struct task_struct* gsnedf_schedule(struct task_struct * prev)
 
         spin_unlock(&gsnedf_lock);
 
+#ifdef WANT_ALL_SCHED_EVENTS
         TRACE("gsnedf_lock released, next=0x%p\n", next);
 
-
         if (next)
                 TRACE_TASK(next, "scheduled at %llu\n", litmus_clock());
         else if (exists && !next)
                 TRACE("becomes idle at %llu.\n", litmus_clock());
+#endif
 
 
         return next;
@@ -500,7 +510,9 @@ static void gsnedf_finish_switch(struct task_struct *prev)
         cpu_entry_t*    entry = &__get_cpu_var(gsnedf_cpu_entries);
 
         entry->scheduled = is_realtime(current) ? current : NULL;
+#ifdef WANT_ALL_SCHED_EVENTS
         TRACE_TASK(prev, "switched away from\n");
+#endif
 }