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-rw-r--r--include/trace/events/block.h15
1 files changed, 15 insertions, 0 deletions
diff --git a/include/trace/events/block.h b/include/trace/events/block.h
index 93b114226af8..34d64ca306b1 100644
--- a/include/trace/events/block.h
+++ b/include/trace/events/block.h
@@ -212,6 +212,21 @@ DEFINE_EVENT(block_rq, block_rq_issue,
);
/**
+ * block_rq_merge - merge request with another one in the elevator
+ * @q: queue holding operation
+ * @rq: block IO operation operation request
+ *
+ * Called when block operation request @rq from queue @q is merged to another
+ * request queued in the elevator.
+ */
+DEFINE_EVENT(block_rq, block_rq_merge,
+
+ TP_PROTO(struct request_queue *q, struct request *rq),
+
+ TP_ARGS(q, rq)
+);
+
+/**
* block_bio_bounce - used bounce buffer when processing block operation
* @q: queue holding the block operation
* @bio: block operation