ptep_get_and_clear_full
pte = ptep_get_and_clear_full(mm, addr, ptep, full);
tmp_pte = ptep_get_and_clear_full(mm, addr, ptep, full);
ptep_get_and_clear_full(mm, addr, ptep, full);
ptep_get_and_clear_full(args->mm, args->vaddr, args->ptep, 1);
ptep_get_and_clear_full(args->mm, args->vaddr, args->ptep, 1);
ptep_get_and_clear_full(mm, addr, pte, tlb->fullmm);