INOACC
{ "NOACC", INOACC, INOACC },
if ((ip->i_flag & (IACC | INOACC)) == 0) {
ip->i_flag |= INOACC;
ip->i_flag &= ~(INOACC | ISYNC);
ip->i_flag &= ~(INOACC | ISYNC);
if ((ip->i_flag & (IACC | INOACC)) == 0) {
ip->i_flag |= INOACC; /* don't update ref time in getpage */