linux-master/kernel/sys.c

1076 	struct task_struct *group_leader = current->group_leader;
1081 		pid = task_pid_vnr(group_leader);
1102 	if (same_thread_group(p->real_parent, group_leader)) {
1104 		if (task_session(p) != task_session(group_leader))
1111 		if (p != group_leader)
1125 		if (!g || task_session(g) != task_session(group_leader))
1216 	struct task_struct *curr = current->group_leader;
1227 	struct task_struct *group_leader = current->group_leader;
1228 	struct pid *sid = task_pid(group_leader);
1234 	if (group_leader->signal->leader)
1243 	group_leader->signal->leader = 1;
1246 	proc_clear_tty(group_leader);
1252 		proc_sid_connector(group_leader);
1253 		sched_autogroup_create_attach(group_leader);
1475 	task_lock(tsk->group_leader);
1493 	task_unlock(tsk->group_leader);
1508 		 * The group_leader is the last task to be released, so if we
1512 		update_rlimit_cpu(tsk->group_leader, new_rlim->rlim_cur);
1591 	task_lock(current->group_leader);
1593 	task_unlock(current->group_leader);
1611 	task_lock(current->group_leader);
1613 	task_unlock(current->group_leader);