perf report: Handle all known event types

We have munmap, throttle/unthrottle and period events as well,
process them - otherwise they are considered broke events and
we mis-parse the next few events.

Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Mike Galbraith <efault@gmx.de>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Corey Ashford <cjashfor@linux.vnet.ibm.com>
Cc: Marcelo Tosatti <mtosatti@redhat.com>
Cc: Arnaldo Carvalho de Melo <acme@redhat.com>
Cc: Thomas Gleixner <tglx@linutronix.de>
LKML-Reference: <new-submission>
Signed-off-by: NIngo Molnar <mingo@elte.hu>

Documentation/perf_counter/builtin-report.c

@@ -893,6 +893,15 @@ process_event(event_t *event, unsigned long offset, unsigned long head)
 	case PERF_EVENT_COMM:
 		return process_comm_event(event, offset, head);
 
+	/*
+	 * We dont process them right now but they are fine:
+	 */
+	case PERF_EVENT_MUNMAP:
+	case PERF_EVENT_PERIOD:
+	case PERF_EVENT_THROTTLE:
+	case PERF_EVENT_UNTHROTTLE:
+		return 0;
+
 	default:
 		return -1;
 	}