ptep_xchg_commit  281 arch/s390/mm/pgtable.c 	old = ptep_xchg_commit(mm, addr, ptep, pgste, old, new);
ptep_xchg_commit  298 arch/s390/mm/pgtable.c 	old = ptep_xchg_commit(mm, addr, ptep, pgste, old, new);