remove perf overflow handler

kernel/sched/perf_error_detection.c

@@ -61,25 +61,25 @@ u64 terminate_perf_event(struct perf_event *pevent)
 }
 
 
-/*
- *	handle the perf overflow event -> task needed more instructions than planed
- */
-void overflow_handler(
-		struct perf_event *event,
-		struct perf_sample_data *data,
-		struct pt_regs *regs)
-{
-	struct pb_rq *pb_rq;
-	int cpu;
-
-	cpu = smp_processor_id();
-	pb_rq = &cpu_rq(cpu)->pb;
-
-	// if(pb_rq->is_initialized)
-	// 	printk(KERN_WARNING "OH: PB TASK %llu RAN TOO LONG\n",pb_rq->plan[pb_rq->c_entry].task_id);
-	// else
-	// 	printk(KERN_WARNING "OH: PB TASK RAN TOO LONG\n");
-}
+// /*
+//  *	handle the perf overflow event -> task needed more instructions than planed
+//  */
+// void overflow_handler(
+// 		struct perf_event *event,
+// 		struct perf_sample_data *data,
+// 		struct pt_regs *regs)
+// {
+// 	struct pb_rq *pb_rq;
+// 	int cpu;
+
+// 	cpu = smp_processor_id();
+// 	pb_rq = &cpu_rq(cpu)->pb;
+
+// 	if(pb_rq->is_initialized)
+// 		printk(KERN_WARNING "OH: PB TASK %llu RAN TOO LONG\n",pb_rq->plan[pb_rq->c_entry].task_id);
+// 	else
+// 		printk(KERN_WARNING "OH: PB TASK RAN TOO LONG\n");
+// }
 
 struct perf_event* perf_event_create(struct perf_event_attr *hw_event_uptr, int cpu, struct task_struct *task_struct)
 {
@@ -87,6 +87,6 @@ struct perf_event* perf_event_create(struct perf_event_attr *hw_event_uptr, int
 			hw_event_uptr,
 			cpu,
 			task_struct,
-			&overflow_handler,
-			NULL /* What's meant by context? 'oprofile' uses NULL */);
+			NULL, /* &overflow_handler disabled, because we count within the scheduler */
+			NULL);
 }