From d44330b7f13e7f243f7d0e0426741219708ff7de Mon Sep 17 00:00:00 2001
From: Guoju Fang <fangguoju@gmail.com>
Date: Fri, 24 Jan 2020 01:01:38 +0800
Subject: [PATCH] bcache: print written and keys in trace_bcache_btree_write
Git-commit: d44330b7f13e7f243f7d0e0426741219708ff7de
Patch-mainline: v5.6-rc1
References: bsc#1163762
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>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
---
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