[PATCH for-6.18/block 05/16] blk-crypto: fix missing blktrace bio split events

Yu Kuai
2025-09-05T07:15:57Z

From: Yu Kuai <yukuai3@huawei.com>

trace_block_split() is missing, resulting in blktrace inability to catch
BIO split events and making it harder to analyze the BIO sequence.

Cc: stable@vger.kernel.org
Fixes: 488f6682c832 ("block: blk-crypto-fallback for Inline Encryption")
Signed-off-by: Yu Kuai <yukuai3@huawei.com>
---
block/blk-crypto-fallback.c | 3 +++
1 file changed, 3 insertions(+)

diff --git a/block/blk-crypto-fallback.c b/block/blk-crypto-fallback.c
index 005c9157ffb3..1f9a4c33d2bd 100644
--- a/block/blk-crypto-fallback.c
+++ b/block/blk-crypto-fallback.c
@@ -18,6 +18,7 @@
#include <linux/module.h>
#include <linux/random.h>
#include <linux/scatterlist.h>
+#include <trace/events/block.h>

#include "blk-cgroup.h"
#include "blk-crypto-internal.h"
@@ -231,7 +232,9 @@ static bool blk_crypto_fallback_split_bio_if_needed(struct bio **bio_ptr)
bio->bi_status = BLK_STS_RESOURCE;
return false;
}
+
bio_chain(split_bio, bio);
+ trace_block_split(split_bio, bio->bi_iter.bi_sector);
submit_bio_noacct(bio);
*bio_ptr = split_bio;
}
--
2.39.2