pte_offset_map_rw_nolock
pte = pte_offset_map_rw_nolock(vma->vm_mm, pmd, address, &pmdval, &ptl);
ptep = pte_offset_map_rw_nolock(mm, pmdp, vmaddr, &pmdval, &ptl);
pte_t *pte_offset_map_rw_nolock(struct mm_struct *mm, pmd_t *pmd,
start_pte = pte_offset_map_rw_nolock(mm, pmd, haddr, &pgt_pmd, &ptl);
src_pte = pte_offset_map_rw_nolock(src_mm, src_pmd, addr, &dummy_pmdval,
start_pte = pte_offset_map_rw_nolock(mm, pmd, addr, pmdval, &ptl);
vmf->pte = pte_offset_map_rw_nolock(vmf->vma->vm_mm, vmf->pmd,
new_ptep = pte_offset_map_rw_nolock(mm, new_pmd, new_addr, &dummy_pmdval,
pvmw->pte = pte_offset_map_rw_nolock(pvmw->vma->vm_mm, pvmw->pmd,
dst_pte = pte_offset_map_rw_nolock(mm, dst_pmd, dst_addr, &dst_pmdval,
src_pte = pte_offset_map_rw_nolock(mm, src_pmd, src_addr, &dummy_pmdval,
pte = pte_offset_map_rw_nolock(args->mm, pmd, start & PMD_MASK, &pmdval, &ptl);