pgd_allocation_order
free_pages((unsigned long)image->arch.pgd, pgd_allocation_order());
pgd_allocation_order());
return __pgd_alloc(mm, pgd_allocation_order());
free_pages((unsigned long)efi_pgd, pgd_allocation_order());
efi_pgd = (pgd_t *)__get_free_pages(gfp_mask, pgd_allocation_order());