diff options
Diffstat (limited to 'include/linux/bio.h')
| -rw-r--r-- | include/linux/bio.h | 24 |
1 files changed, 23 insertions, 1 deletions
diff --git a/include/linux/bio.h b/include/linux/bio.h index 23d29b39f71e..d0eb659fa733 100644 --- a/include/linux/bio.h +++ b/include/linux/bio.h @@ -300,6 +300,29 @@ static inline void bio_get_last_bvec(struct bio *bio, struct bio_vec *bv) bv->bv_len = iter.bi_bvec_done; } +static inline unsigned bio_pages_all(struct bio *bio) +{ + WARN_ON_ONCE(bio_flagged(bio, BIO_CLONED)); + return bio->bi_vcnt; +} + +static inline struct bio_vec *bio_first_bvec_all(struct bio *bio) +{ + WARN_ON_ONCE(bio_flagged(bio, BIO_CLONED)); + return bio->bi_io_vec; +} + +static inline struct page *bio_first_page_all(struct bio *bio) +{ + return bio_first_bvec_all(bio)->bv_page; +} + +static inline struct bio_vec *bio_last_bvec_all(struct bio *bio) +{ + WARN_ON_ONCE(bio_flagged(bio, BIO_CLONED)); + return &bio->bi_io_vec[bio->bi_vcnt - 1]; +} + enum bip_flags { BIP_BLOCK_INTEGRITY = 1 << 0, /* block layer owns integrity data */ BIP_MAPPED_INTEGRITY = 1 << 1, /* ref tag has been remapped */ @@ -477,7 +500,6 @@ static inline void bio_flush_dcache_pages(struct bio *bi) #endif extern void bio_copy_data(struct bio *dst, struct bio *src); -extern int bio_alloc_pages(struct bio *bio, gfp_t gfp); extern void bio_free_pages(struct bio *bio); extern struct bio *bio_copy_user_iov(struct request_queue *, |