839 	struct task_struct *tsk;  in exec_mmap()  local
843 	tsk = current;  in exec_mmap()
845 	mm_release(tsk, old_mm);  in exec_mmap()
861 	task_lock(tsk);  in exec_mmap()
862 	active_mm = tsk->active_mm;  in exec_mmap()
863 	tsk->mm = mm;  in exec_mmap()
864 	tsk->active_mm = mm;  in exec_mmap()
866 	tsk->mm->vmacache_seqnum = 0;  in exec_mmap()
867 	vmacache_flush(tsk);  in exec_mmap()
868 	task_unlock(tsk);  in exec_mmap()
872 		setmax_mm_hiwater_rss(&tsk->signal->maxrss, old_mm);  in exec_mmap()
887 static int de_thread(struct task_struct *tsk)  in de_thread()  argument
889 	struct signal_struct *sig = tsk->signal;  in de_thread()
890 	struct sighand_struct *oldsighand = tsk->sighand;  in de_thread()
893 	if (thread_group_empty(tsk))  in de_thread()
909 	sig->group_exit_task = tsk;  in de_thread()
910 	sig->notify_count = zap_other_threads(tsk);  in de_thread()
911 	if (!thread_group_leader(tsk))  in de_thread()
918 		if (unlikely(__fatal_signal_pending(tsk)))  in de_thread()
929 	if (!thread_group_leader(tsk)) {  in de_thread()
930 		struct task_struct *leader = tsk->group_leader;  in de_thread()
933 			threadgroup_change_begin(tsk);  in de_thread()
944 			threadgroup_change_end(tsk);  in de_thread()
946 			if (unlikely(__fatal_signal_pending(tsk)))  in de_thread()
960 		tsk->start_time = leader->start_time;  in de_thread()
961 		tsk->real_start_time = leader->real_start_time;  in de_thread()
963 		BUG_ON(!same_thread_group(leader, tsk));  in de_thread()
964 		BUG_ON(has_group_leader_pid(tsk));  in de_thread()
977 		tsk->pid = leader->pid;  in de_thread()
978 		change_pid(tsk, PIDTYPE_PID, task_pid(leader));  in de_thread()
979 		transfer_pid(leader, tsk, PIDTYPE_PGID);  in de_thread()
980 		transfer_pid(leader, tsk, PIDTYPE_SID);  in de_thread()
982 		list_replace_rcu(&leader->tasks, &tsk->tasks);  in de_thread()
983 		list_replace_init(&leader->sibling, &tsk->sibling);  in de_thread()
985 		tsk->group_leader = tsk;  in de_thread()
986 		leader->group_leader = tsk;  in de_thread()
988 		tsk->exit_signal = SIGCHLD;  in de_thread()
1002 		threadgroup_change_end(tsk);  in de_thread()
1012 	tsk->exit_signal = SIGCHLD;  in de_thread()
1033 		rcu_assign_pointer(tsk->sighand, newsighand);  in de_thread()
1040 	BUG_ON(!thread_group_leader(tsk));  in de_thread()
1052 char *get_task_comm(char *buf, struct task_struct *tsk)  in get_task_comm()  argument
1055 	task_lock(tsk);  in get_task_comm()
1056 	strncpy(buf, tsk->comm, sizeof(tsk->comm));  in get_task_comm()
1057 	task_unlock(tsk);  in get_task_comm()
1067 void __set_task_comm(struct task_struct *tsk, const char *buf, bool exec)  in __set_task_comm()  argument
1069 	task_lock(tsk);  in __set_task_comm()
1070 	trace_task_rename(tsk, buf);  in __set_task_comm()
1071 	strlcpy(tsk->comm, buf, sizeof(tsk->comm));  in __set_task_comm()
1072 	task_unlock(tsk);  in __set_task_comm()
1073 	perf_event_comm(tsk, exec);  in __set_task_comm()