linux_page_address
void *linux_page_address(const struct page *);
#define page_address(page) linux_page_address(page)
#define page_to_virt(page) linux_page_address(page)
(uintmax_t)(uintptr_t)linux_page_address(page), (uintmax_t)offset,
(uint8_t *)linux_page_address(shinfo->frags[i].page) +
pfc->va = linux_page_address(pages);
frag, i, frag->page, linux_page_address(frag->page),