[PATCH] bcache: print written and keys in trace_bcache_btree_write

[Guoju Fang <fangguoju@xxxxxxxxx>]

It's useful to dump written block and keys on btree write, this patch
add them into trace_bcache_btree_write.

Signed-off-by: Guoju Fang <fangguoju@xxxxxxxxx>
---
 include/trace/events/bcache.h | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/include/trace/events/bcache.h b/include/trace/events/bcache.h
index e4526f8..0bddea6 100644
--- a/include/trace/events/bcache.h
+++ b/include/trace/events/bcache.h
@@ -275,7 +275,8 @@
 		__entry->keys	= b->keys.set[b->keys.nsets].data->keys;
 	),
 
-	TP_printk("bucket %zu", __entry->bucket)
+	TP_printk("bucket %zu written block %u + %u",
+		__entry->bucket, __entry->block, __entry->keys)
 );
 
 DEFINE_EVENT(btree_node, bcache_btree_node_alloc,
-- 
1.8.3.1