include/linux/bvec.h

21  * @bv_page:   First page associated with the address range.
23  * @bv_offset: Start of the address range relative to the start of @bv_page.
27  *   nth_page(@bv_page, n) == @bv_page + n
32 	struct page	*bv_page;
47 	bv->bv_page = page;
102 	(__bvec_iter_bvec((bvec), (iter))->bv_page)
116 	.bv_page	= mp_bvec_iter_page((bvec), (iter)),	\
135 	.bv_page	= bvec_iter_page((bvec), (iter)),	\
210 		bv->bv_page++;
213 		bv->bv_page = bvec->bv_page + (bvec->bv_offset >> PAGE_SHIFT);
235 	return kmap_local_page(bvec->bv_page) + bvec->bv_offset;
246 	memcpy_from_page(to, bvec->bv_page, bvec->bv_offset, bvec->bv_len);
257 	memcpy_to_page(bvec->bv_page, bvec->bv_offset, from, bvec->bv_len);
268 	memzero_page(bvec->bv_page, bvec->bv_offset, bvec->bv_len);
275  * Note: the caller must ensure that @bvec->bv_page is not a highmem page.
279 	WARN_ON_ONCE(PageHighMem(bvec->bv_page));
280 	return page_address(bvec->bv_page) + bvec->bv_offset;