JFS_NOATIME_FL
{JFS_NOATIME_FL, FS_NOATIME_FL},
if (flags & JFS_NOATIME_FL)
JFS_IP(inode)->mode2 |= JFS_NOATIME_FL | JFS_IMMUTABLE_FL;
JFS_IP(inode)->mode2 &= ~(JFS_NOATIME_FL | JFS_IMMUTABLE_FL);