From 6fa747550e35f0a74e649b19d97055988a25b2e4 Mon Sep 17 00:00:00 2001 From: Christoph Hellwig Date: Tue, 7 Apr 2026 16:05:26 +0200 Subject: block: factor out a bio_await helper Add a new helper to wait for a bio and anything chained off it to complete synchronously after submitting it. This factors common code out of submit_bio_wait and bio_await_chain and will also be useful for file system code and thus is exported. Note that this will now set REQ_SYNC also for the bio_await case for consistency. Nothing should look at the flag in the end_io handler, but if something does having the flag set makes more sense. Signed-off-by: Christoph Hellwig Reviewed-by: Damien Le Moal Link: https://patch.msgid.link/20260407140538.633364-4-hch@lst.de Signed-off-by: Jens Axboe --- include/linux/bio.h | 2 ++ 1 file changed, 2 insertions(+) (limited to 'include') diff --git a/include/linux/bio.h b/include/linux/bio.h index 984844d2870b..97d747320b35 100644 --- a/include/linux/bio.h +++ b/include/linux/bio.h @@ -432,6 +432,8 @@ extern void bio_uninit(struct bio *); void bio_reset(struct bio *bio, struct block_device *bdev, blk_opf_t opf); void bio_reuse(struct bio *bio, blk_opf_t opf); void bio_chain(struct bio *, struct bio *); +void bio_await(struct bio *bio, void *priv, + void (*submit)(struct bio *bio, void *priv)); int __must_check bio_add_page(struct bio *bio, struct page *page, unsigned len, unsigned off); -- cgit v1.2.3