[PATCH 13/17] bcache: print written and keys in trace_bcache_btree_write

colyli
2020-01-23T17:03:05Z

From: Guoju Fang <fangguoju@gmail.com>

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@gmail.com>
Signed-off-by: Coly Li <colyli@suse.de>
---
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 e4526f85c19d..0bddea663b3b 100644
--- a/include/trace/events/bcache.h
+++ b/include/trace/events/bcache.h
@@ -275,7 +275,8 @@ TRACE_EVENT(bcache_btree_write,
__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,
--
2.16.4