1 files changed, 4 insertions, 0 deletions
diff --git a/trace2.h b/trace2.h
index f5c5a9e6ba..1890de3436 100644
--- a/trace2.h
+++ b/trace2.h
@@ -552,6 +552,10 @@ enum trace2_counter_id {
 	TRACE2_COUNTER_ID_TEST1 = 0, /* emits summary event only */
 	TRACE2_COUNTER_ID_TEST2,     /* emits summary and thread events */
 
+	/* counts number of fsyncs */
+	TRACE2_COUNTER_ID_FSYNC_WRITEOUT_ONLY,
+	TRACE2_COUNTER_ID_FSYNC_HARDWARE_FLUSH,
+
 	/* Add additional counter definitions before here. */
 	TRACE2_NUMBER_OF_COUNTERS
 };