get_user_pages
ret = get_user_pages(src, 1, 0, &src_page);
r = get_user_pages(userptr, num_pages, write ? FOLL_WRITE : 0,
if (get_user_pages(vaddr, 1, write ? FOLL_WRITE : 0, &page) <= 0)
long get_user_pages(unsigned long start, unsigned long nr_pages,
result = get_user_pages(vaddr, 1, FOLL_FORCE, &page);
EXPORT_SYMBOL(get_user_pages);
nr = get_user_pages(addr, nr, gup->gup_flags, pages + i);
nr = get_user_pages(addr, nr, gup->gup_flags,