compat_ushort_t
compat_ushort_t st_nlink;
compat_ushort_t shm_atime_high;
compat_ushort_t shm_dtime_high;
compat_ushort_t shm_ctime_high;
compat_ushort_t __unused2;
compat_ushort_t seq;
compat_ushort_t __pad2;