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authorChristoph Hellwig <hch@lst.de>2026-04-07 16:05:26 +0200
committerJens Axboe <axboe@kernel.dk>2026-04-07 08:22:24 -0600
commit6fa747550e35f0a74e649b19d97055988a25b2e4 (patch)
tree6a09feb5565fad13def838ad33bae139b6881bff /include/linux
parent65565ca5f99b42fe62b9a10117cca04f4311dc66 (diff)
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 <hch@lst.de> Reviewed-by: Damien Le Moal <dlemoal@kernel.org> Link: https://patch.msgid.link/20260407140538.633364-4-hch@lst.de Signed-off-by: Jens Axboe <axboe@kernel.dk>
Diffstat (limited to 'include/linux')
-rw-r--r--include/linux/bio.h2
1 files changed, 2 insertions, 0 deletions
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);