From: Shida Zhang <zhangshida@kylinos.cn>

Export the bio_chain_and_submit function to make it available as a
common utility. This will allow replacing repetitive bio chaining
patterns found in multiple locations throughout the codebase.

Signed-off-by: Shida Zhang <zhangshida@kylinos.cn>
---
 block/bio.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/block/bio.c b/block/bio.c
index 2473a2c0d2f..6102e2577cb 100644
--- a/block/bio.c
+++ b/block/bio.c
@@ -371,6 +371,7 @@ struct bio *bio_chain_and_submit(struct bio *prev, struct bio *new)
 	}
 	return new;
 }
+EXPORT_SYMBOL_GPL(bio_chain_and_submit);
 
 struct bio *blk_next_bio(struct bio *bio, struct block_device *bdev,
 		unsigned int nr_pages, blk_opf_t opf, gfp_t gfp)
-- 
2.34.1