SESS_LEADER
if (SESS_LEADER(p) && !(p->p_flag & P_CONTROLT)) {
SESS_LEADER(p))
if (SESS_LEADER(p)) {
if (SESS_LEADER(p))
KASSERT(!SESS_LEADER(p),
if (SESS_LEADER(p)) {
if (SESS_LEADER(targp)) {
if (!SESS_LEADER(p)) {
if (!SESS_LEADER(p)) {