diff options
| author | Ming Lei <tom.leiming@gmail.com> | 2016-11-22 08:57:21 -0700 |
|---|---|---|
| committer | Jens Axboe <axboe@fb.com> | 2016-11-22 08:57:21 -0700 |
| commit | 3a83f4677539bce8eaa2bca9ee9c20e172d7ab04 (patch) | |
| tree | edb5ffeed2c07c342bd6d9adb0180fab472c1666 /include | |
| parent | 9a794fb9bddeda0b8c8c13858038318f3cbd4b7e (diff) | |
block: bio: pass bvec table to bio_init()
Some drivers often use external bvec table, so introduce
this helper for this case. It is always safe to access the
bio->bi_io_vec in this way for this case.
After converting to this usage, it will becomes a bit easier
to evaluate the remaining direct access to bio->bi_io_vec,
so it can help to prepare for the following multipage bvec
support.
Signed-off-by: Ming Lei <tom.leiming@gmail.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Fixed up the new O_DIRECT cases.
Signed-off-by: Jens Axboe <axboe@fb.com>
Diffstat (limited to 'include')
| -rw-r--r-- | include/linux/bio.h | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/include/linux/bio.h b/include/linux/bio.h index d367cd37a7f7..70a7244f08a7 100644 --- a/include/linux/bio.h +++ b/include/linux/bio.h @@ -420,7 +420,8 @@ extern int bio_phys_segments(struct request_queue *, struct bio *); extern int submit_bio_wait(struct bio *bio); extern void bio_advance(struct bio *, unsigned); -extern void bio_init(struct bio *); +extern void bio_init(struct bio *bio, struct bio_vec *table, + unsigned short max_vecs); extern void bio_reset(struct bio *); void bio_chain(struct bio *, struct bio *); |