check_huge_file
return check_huge_file(addr, nr_hpages, hpage_pmd_size);
if (!check_huge_file(*addr, fd_size / pmd_pagesize, pmd_pagesize)) {
if (!check_huge_file(addr, 0, pmd_pagesize)) {
bool check_huge_file(void *addr, int nr_hpages, uint64_t hpage_size);