linux-kernel - Re: [PATCH 7/8] taskstats: fix stats->ac_exitcode to work on threads and use group_exit

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Message-ID: <46FAC57A.3090309@tiscali.nl>
Date:	Wed, 26 Sep 2007 22:47:54 +0200
From:	roel <12o3l@...cali.nl>
To:	Guillaume Chazarain <guichaz@...oo.fr>
CC:	Andrew Morton <akpm@...ux-foundation.org>,
	Linux Kernel Mailing List <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH 7/8] taskstats: fix stats->ac_exitcode to work on threads
 and	use group_exit_code

Guillaume Chazarain wrote:

[...]

> @@ -65,13 +65,15 @@ void bacct_add_tsk(struct taskstats *stats, struct task_struct *tsk)
>  void bacct_fill_threadgroup(struct taskstats *stats, struct task_struct *tsk,
>  			    bool tg_stats)
>  {
> +	int group_exit_code;
> +
>  	fill_wall_times(stats, tsk);
>  
> -	if (thread_group_leader(tsk)) {
> -		stats->ac_exitcode = tsk->exit_code;
> -		if (tsk->flags & PF_FORKNOEXEC)
> -			stats->ac_flag |= AFORK;
> -	}
> +	if (thread_group_leader(tsk) && ((tsk->flags & PF_FORKNOEXEC)))

	if (thread_group_leader(tsk) && (tsk->flags & PF_FORKNOEXEC))

> +		stats->ac_flag |= AFORK;
> +
> +	group_exit_code = tg_stats ? tsk->signal->group_exit_code : 0;
> +	stats->ac_exitcode = group_exit_code ? : tsk->exit_code;

Isn't this just confusing? why not

	if (tg_stats) {
		group_exit_code = tsk->signal->group_exit_code;
		stats->ac_exitcode = group_exit_code;
		
	} else {
		group_exit_code = 0;
		stats->ac_exitcode = tsk->exit_code;
	}
-
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