tn_gid
((va->va_gid == dir->tn_gid) || groupmember(va->va_gid, cred) ||
tp->tn_gid = va->va_gid;
tp->tn_gid = dir->tn_gid;
tp->tn_gid = crgetgid(cred);
secpolicy_vnode_setids_setgids(cred, tp->tn_gid) != 0)
if (groupmember(tp->tn_gid, cred) == 0)
t->tn_gid = vap->va_gid;
t->tn_gid = crgetgid(cred);
tp->tn_gid = rattr.va_gid;
if (tp->tn_uid == UID_NOBODY || tp->tn_gid == GID_NOBODY) {
tp->tn_gid = va.va_gid;
vap->va_gid = tp->tn_gid;