1071 	struct task_struct *group_leader = current->group_leader;  in SYSCALL_DEFINE2()  local
1076 		pid = task_pid_vnr(group_leader);  in SYSCALL_DEFINE2()
1097 	if (same_thread_group(p->real_parent, group_leader)) {  in SYSCALL_DEFINE2()
1099 		if (task_session(p) != task_session(group_leader))  in SYSCALL_DEFINE2()
1106 		if (p != group_leader)  in SYSCALL_DEFINE2()
1120 		if (!g || task_session(g) != task_session(group_leader))  in SYSCALL_DEFINE2()
1211 	struct task_struct *curr = current->group_leader;  in set_special_pids()
1222 	struct task_struct *group_leader = current->group_leader;  in ksys_setsid()  local
1223 	struct pid *sid = task_pid(group_leader);  in ksys_setsid()
1229 	if (group_leader->signal->leader)  in ksys_setsid()
1238 	group_leader->signal->leader = 1;  in ksys_setsid()
1241 	proc_clear_tty(group_leader);  in ksys_setsid()
1247 		proc_sid_connector(group_leader);  in ksys_setsid()
1248 		sched_autogroup_create_attach(group_leader);  in ksys_setsid()
1470 	task_lock(tsk->group_leader);  in do_prlimit()
1488 	task_unlock(tsk->group_leader);  in do_prlimit()
1507 		update_rlimit_cpu(tsk->group_leader, new_rlim->rlim_cur);  in do_prlimit()
1586 	task_lock(current->group_leader);  in SYSCALL_DEFINE2()
1588 	task_unlock(current->group_leader);  in SYSCALL_DEFINE2()
1606 	task_lock(current->group_leader);  in COMPAT_SYSCALL_DEFINE2()
1608 	task_unlock(current->group_leader);  in COMPAT_SYSCALL_DEFINE2()