[PATCH 1/3] utrace_do_stop: don't set ->stopped when ->exit_state

[Roland McGrath]

> The logic is correct. Just I think it would be tidier to avoid setting
> utrace->stopped when the task is dead. It doesn't hurt, but it is not
> needed (and _looks_ confusing imho).
> 
> We can just return true, this is enough for the caller.

The 

> In fact, it seems to me "if (exit_state)" case is not needed at all,
> see "[PATCH 3/3]".
> 
> Signed-off-by: Oleg Nesterov <oleg at redhat.com>
> 
> --- __UTRACE/kernel/utrace.c~5_EXIT_STATE_STOPPED	2009-08-26 14:55:51.000000000 +0200
> +++ __UTRACE/kernel/utrace.c	2009-08-26 16:53:49.000000000 +0200
> @@ -668,7 +668,7 @@ static bool utrace_do_stop(struct task_s
>  		 * utrace_report_death(), or never will.
>  		 */
>  		if (!(target->utrace_flags & _UTRACE_DEATH_EVENTS))
> -			utrace->stopped = stopped = true;
> +			stopped = true;
>  	} else if (task_is_stopped(target)) {
>  		/*
>  		 * Stopped is considered quiescent; when it wakes up, it will
>