# \[PATCH V2 2/6\] block: don't pass BIOSET\_NEED\_BVECS for q-\>bio\_split

- From: Ming Lei \<hidden\>
- Date: 2021-01-05 12:43:54 
- List: linux-block
- Page: https://ratatoskr.run/linux-block/2021/01/6400042
- Thread: https://ratatoskr.run/linux-block/2021/01/6400041/t.md

```text
q->bio_split is only used by bio_split() for fast cloning bio, and no
need to allocate bvecs, so remove this flag.

Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Ming Lei <redacted>
---
 block/blk-core.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/block/blk-core.c b/block/blk-core.c
index 7663a9b94b80..00d415be74e6 100644
--- a/block/blk-core.c
+++ b/block/blk-core.c
@@ -531,7 +531,7 @@ struct request_queue *blk_alloc_queue(int node_id)
 	if (q->id < 0)
 		goto fail_q;
 
-	ret = bioset_init(&q->bio_split, BIO_POOL_SIZE, 0, BIOSET_NEED_BVECS);
+	ret = bioset_init(&q->bio_split, BIO_POOL_SIZE, 0, 0);
 	if (ret)
 		goto fail_id;
 
-- 
2.28.0

```