zap_page_range_single
zap_page_range_single(vma, vmaddr, min(end, vma->vm_end) - vmaddr, NULL);
zap_page_range_single(vma, page_addr, PAGE_SIZE, NULL);
void zap_page_range_single(struct vm_area_struct *vma, unsigned long address,
zap_page_range_single(vma, vma->vm_start,
zap_page_range_single(vml->vma, uaddr,
zap_page_range_single(vma, vma->vm_start, nr_pages * PAGE_SIZE, NULL);
zap_page_range_single(vma, range->start,
zap_page_range_single(vma, address, size, NULL);
zap_page_range_single(vma, addr, size, NULL);
zap_page_range_single(vma, start_addr, end_addr - start_addr, details);
zap_page_range_single(vma, *address, maybe_zap_len, NULL);
zap_page_range_single(vma, address, total_bytes_to_map,