922 	struct task_struct *group_leader = current->group_leader;  in SYSCALL_DEFINE2()  local
927 		pid = task_pid_vnr(group_leader);  in SYSCALL_DEFINE2()
948 	if (same_thread_group(p->real_parent, group_leader)) {  in SYSCALL_DEFINE2()
950 		if (task_session(p) != task_session(group_leader))  in SYSCALL_DEFINE2()
957 		if (p != group_leader)  in SYSCALL_DEFINE2()
971 		if (!g || task_session(g) != task_session(group_leader))  in SYSCALL_DEFINE2()
1057 	struct task_struct *curr = current->group_leader;  in set_special_pids()
1068 	struct task_struct *group_leader = current->group_leader;  in SYSCALL_DEFINE0()  local
1069 	struct pid *sid = task_pid(group_leader);  in SYSCALL_DEFINE0()
1075 	if (group_leader->signal->leader)  in SYSCALL_DEFINE0()
1084 	group_leader->signal->leader = 1;  in SYSCALL_DEFINE0()
1087 	proc_clear_tty(group_leader);  in SYSCALL_DEFINE0()
1093 		proc_sid_connector(group_leader);  in SYSCALL_DEFINE0()
1094 		sched_autogroup_create_attach(group_leader);  in SYSCALL_DEFINE0()
1314 	task_lock(current->group_leader);  in SYSCALL_DEFINE2()
1316 	task_unlock(current->group_leader);  in SYSCALL_DEFINE2()
1384 	task_lock(tsk->group_leader);  in do_prlimit()
1392 			retval = security_task_setrlimit(tsk->group_leader,  in do_prlimit()
1410 	task_unlock(tsk->group_leader);  in do_prlimit()