diff options
| -rw-r--r-- | block/bio.c | 16 | ||||
| -rw-r--r-- | include/linux/bio.h | 2 |
2 files changed, 18 insertions, 0 deletions
diff --git a/block/bio.c b/block/bio.c index 1e42aefc7377..bd3d048d0a72 100644 --- a/block/bio.c +++ b/block/bio.c @@ -992,6 +992,22 @@ void __bio_add_page(struct bio *bio, struct page *page, EXPORT_SYMBOL_GPL(__bio_add_page); /** + * bio_add_virt_nofail - add data in the direct kernel mapping to a bio + * @bio: destination bio + * @vaddr: data to add + * @len: length of the data to add, may cross pages + * + * Add the data at @vaddr to @bio. The caller must have ensure a segment + * is available for the added data. No merging into an existing segment + * will be performed. + */ +void bio_add_virt_nofail(struct bio *bio, void *vaddr, unsigned len) +{ + __bio_add_page(bio, virt_to_page(vaddr), len, offset_in_page(vaddr)); +} +EXPORT_SYMBOL_GPL(bio_add_virt_nofail); + +/** * bio_add_page - attempt to add page(s) to bio * @bio: destination bio * @page: start page to add diff --git a/include/linux/bio.h b/include/linux/bio.h index cafc7c215de8..acca7464080c 100644 --- a/include/linux/bio.h +++ b/include/linux/bio.h @@ -417,6 +417,8 @@ void __bio_add_page(struct bio *bio, struct page *page, unsigned int len, unsigned int off); void bio_add_folio_nofail(struct bio *bio, struct folio *folio, size_t len, size_t off); +void bio_add_virt_nofail(struct bio *bio, void *vaddr, unsigned len); + int bio_iov_iter_get_pages(struct bio *bio, struct iov_iter *iter); void bio_iov_bvec_set(struct bio *bio, const struct iov_iter *iter); void __bio_release_pages(struct bio *bio, bool mark_dirty); |