range_in_vma
if (range_in_vma(prev_vma, ip, ip)) {
range_in_vma(vma, ALIGN_DOWN(address, HPAGE_PMD_SIZE),
!range_in_vma(svma, sbase, s_end) ||
if (!range_in_vma(vma, start, end))
!range_in_vma(vma, haddr, haddr + HPAGE_PMD_SIZE))
if (!range_in_vma(vma, address, address + size) ||
VM_BUG_ON_VMA(!range_in_vma(vma, start, end), vma);