[PATCH for-6.18/block 13/16] blk-crypto: convert to use bio_submit_split_bioset()

Yu Kuai
2025-09-05T07:16:04Z

From: Yu Kuai <yukuai3@huawei.com>

Unify bio split code, prepare to fix reordered split IO.

Signed-off-by: Yu Kuai <yukuai3@huawei.com>
---
block/blk-crypto-fallback.c | 17 +++++------------
1 file changed, 5 insertions(+), 12 deletions(-)

diff --git a/block/blk-crypto-fallback.c b/block/blk-crypto-fallback.c
index 1f9a4c33d2bd..88539e058bf0 100644
--- a/block/blk-crypto-fallback.c
+++ b/block/blk-crypto-fallback.c
@@ -18,7 +18,6 @@
#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"
@@ -223,20 +222,14 @@ static bool blk_crypto_fallback_split_bio_if_needed(struct bio **bio_ptr)
if (++i == BIO_MAX_VECS)
break;
}
- if (num_sectors < bio_sectors(bio)) {
- struct bio *split_bio;

- split_bio = bio_split(bio, num_sectors, GFP_NOIO,
- &crypto_bio_split);
- if (IS_ERR(split_bio)) {
- bio->bi_status = BLK_STS_RESOURCE;
+ if (num_sectors < bio_sectors(bio)) {
+ bio = bio_submit_split_bioset(bio, num_sectors,
+ &crypto_bio_split);
+ if (!bio)
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;
+ *bio_ptr = bio;
}

return true;
--
2.39.2