NFS_NO_PREEPOCH_TIME_T_OK
NFS_PREEPOCH_TIME_T_OK(tt) : NFS_NO_PREEPOCH_TIME_T_OK(tt))
(NFS_NO_PREEPOCH_TIME_T_OK((vap)->va_atime.tv_sec) && \
NFS_NO_PREEPOCH_TIME_T_OK((vap)->va_mtime.tv_sec) && \
NFS_NO_PREEPOCH_TIME_T_OK((vap)->va_ctime.tv_sec)))