163 void bvec_free(mempool_t *pool, struct bio_vec *bv, unsigned short nr_vecs)  in bvec_free()  argument
168 		mempool_free(bv, pool);  in bvec_free()
170 		kmem_cache_free(biovec_slab(nr_vecs)->slab, bv);  in bvec_free()
611 	struct bio_vec bv;  in zero_fill_bio_iter()  local
614 	__bio_for_each_segment(bv, bio, iter, start)  in zero_fill_bio_iter()
615 		memzero_bvec(&bv);  in zero_fill_bio_iter()
631 	struct bio_vec bv;  in bio_truncate()  local
642 	bio_for_each_segment(bv, bio, iter) {  in bio_truncate()
643 		if (done + bv.bv_len > new_size) {  in bio_truncate()
650 			zero_user(bv.bv_page, bv.bv_offset + offset,  in bio_truncate()
651 				  bv.bv_len - offset);  in bio_truncate()
654 		done += bv.bv_len;  in bio_truncate()
906 static bool bvec_try_merge_page(struct bio_vec *bv, struct page *page,  in bvec_try_merge_page()  argument
909 	size_t bv_end = bv->bv_offset + bv->bv_len;  in bvec_try_merge_page()
910 	phys_addr_t vec_end_addr = page_to_phys(bv->bv_page) + bv_end - 1;  in bvec_try_merge_page()
915 	if (xen_domain() && !xen_biovec_phys_mergeable(bv, page))  in bvec_try_merge_page()
917 	if (!zone_device_pages_have_same_pgmap(bv->bv_page, page))  in bvec_try_merge_page()
924 		if (bv->bv_page + bv_end / PAGE_SIZE != page + off / PAGE_SIZE)  in bvec_try_merge_page()
928 	bv->bv_len += len;  in bvec_try_merge_page()
937 bool bvec_try_merge_hw_page(struct request_queue *q, struct bio_vec *bv,  in bvec_try_merge_hw_page()  argument
942 	phys_addr_t addr1 = page_to_phys(bv->bv_page) + bv->bv_offset;  in bvec_try_merge_hw_page()
947 	if (len > queue_max_segment_size(q) - bv->bv_len)  in bvec_try_merge_hw_page()
949 	return bvec_try_merge_page(bv, page, len, offset, same_page);  in bvec_try_merge_hw_page()
976 		struct bio_vec *bv = &bio->bi_io_vec[bio->bi_vcnt - 1];  in bio_add_hw_page()  local
978 		if (bvec_try_merge_hw_page(q, bv, page, len, offset,  in bio_add_hw_page()
992 		if (bvec_gap_to_prev(&q->limits, bv, offset))  in bio_add_hw_page()
1240 	struct bio_vec *bv = bio->bi_io_vec + bio->bi_vcnt;  in __bio_iov_iter_get_pages()  local
1241 	struct page **pages = (struct page **)bv;  in __bio_iov_iter_get_pages()