845 	struct task_struct *tsk;  in exec_mmap()  local
849 	tsk = current;  in exec_mmap()
851 	mm_release(tsk, old_mm);  in exec_mmap()
867 	task_lock(tsk);  in exec_mmap()
868 	active_mm = tsk->active_mm;  in exec_mmap()
869 	tsk->mm = mm;  in exec_mmap()
870 	tsk->active_mm = mm;  in exec_mmap()
872 	tsk->mm->vmacache_seqnum = 0;  in exec_mmap()
873 	vmacache_flush(tsk);  in exec_mmap()
874 	task_unlock(tsk);  in exec_mmap()
878 		setmax_mm_hiwater_rss(&tsk->signal->maxrss, old_mm);  in exec_mmap()
893 static int de_thread(struct task_struct *tsk)  in de_thread()  argument
895 	struct signal_struct *sig = tsk->signal;  in de_thread()
896 	struct sighand_struct *oldsighand = tsk->sighand;  in de_thread()
899 	if (thread_group_empty(tsk))  in de_thread()
915 	sig->group_exit_task = tsk;  in de_thread()
916 	sig->notify_count = zap_other_threads(tsk);  in de_thread()
917 	if (!thread_group_leader(tsk))  in de_thread()
924 		if (unlikely(__fatal_signal_pending(tsk)))  in de_thread()
935 	if (!thread_group_leader(tsk)) {  in de_thread()
936 		struct task_struct *leader = tsk->group_leader;  in de_thread()
939 			threadgroup_change_begin(tsk);  in de_thread()
950 			threadgroup_change_end(tsk);  in de_thread()
952 			if (unlikely(__fatal_signal_pending(tsk)))  in de_thread()
966 		tsk->start_time = leader->start_time;  in de_thread()
967 		tsk->real_start_time = leader->real_start_time;  in de_thread()
969 		BUG_ON(!same_thread_group(leader, tsk));  in de_thread()
970 		BUG_ON(has_group_leader_pid(tsk));  in de_thread()
983 		tsk->pid = leader->pid;  in de_thread()
984 		change_pid(tsk, PIDTYPE_PID, task_pid(leader));  in de_thread()
985 		transfer_pid(leader, tsk, PIDTYPE_PGID);  in de_thread()
986 		transfer_pid(leader, tsk, PIDTYPE_SID);  in de_thread()
988 		list_replace_rcu(&leader->tasks, &tsk->tasks);  in de_thread()
989 		list_replace_init(&leader->sibling, &tsk->sibling);  in de_thread()
991 		tsk->group_leader = tsk;  in de_thread()
992 		leader->group_leader = tsk;  in de_thread()
994 		tsk->exit_signal = SIGCHLD;  in de_thread()
1008 		threadgroup_change_end(tsk);  in de_thread()
1018 	tsk->exit_signal = SIGCHLD;  in de_thread()
1039 		rcu_assign_pointer(tsk->sighand, newsighand);  in de_thread()
1046 	BUG_ON(!thread_group_leader(tsk));  in de_thread()
1058 char *get_task_comm(char *buf, struct task_struct *tsk)  in get_task_comm()  argument
1061 	task_lock(tsk);  in get_task_comm()
1062 	strncpy(buf, tsk->comm, sizeof(tsk->comm));  in get_task_comm()
1063 	task_unlock(tsk);  in get_task_comm()
1073 void __set_task_comm(struct task_struct *tsk, const char *buf, bool exec)  in __set_task_comm()  argument
1075 	task_lock(tsk);  in __set_task_comm()
1076 	trace_task_rename(tsk, buf);  in __set_task_comm()
1077 	strlcpy(tsk->comm, buf, sizeof(tsk->comm));  in __set_task_comm()
1078 	task_unlock(tsk);  in __set_task_comm()
1079 	perf_event_comm(tsk, exec);  in __set_task_comm()