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Date: Tue, 17 Jan 2017 11:39:06 -0300
From: Arnaldo Carvalho de Melo <acme@kernel.org>
To: Namhyung Kim <namhyung@kernel.org>
Cc: Ingo Molnar <mingo@kernel.org>, Peter Zijlstra <peterz@infradead.org>,
        Jiri Olsa <jolsa@kernel.org>, LKML <linux-kernel@vger.kernel.org>,
        Minchan Kim <minchan@kernel.org>, David Ahern <dsahern@gmail.com>
Subject: Re: [PATCH 1/3] perf sched timehist: Account thread wait time
 separately
Message-ID: <20170117143906.GD14872@kernel.org>
References: <20170113104523.31212-1-namhyung@kernel.org>
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Em Fri, Jan 13, 2017 at 07:45:21PM +0900, Namhyung Kim escreveu:
> @@ -1943,8 +1968,16 @@ static void timehist_update_runtime_stats(struct thread_runtime *r,
>  
>  		if (r->last_time > tprev)
>  			pr_debug("time travel: last sched out time for task > previous sched_switch event\n");
> -		else if (r->last_time)
> -			r->dt_wait = tprev - r->last_time;
> +		else if (r->last_time) {
> +			u64 wait = tprev - r->last_time;
> +
> +			if (r->last_state == TASK_RUNNING)
> +				r->dt_preempt = wait;
> +			else if (r->last_state == TASK_UNINTERRUPTIBLE)
> +				r->dt_iowait = wait;
> +			else
> +				r->dt_sleep = wait;
> +		}

s/wait/dt_wait/g to fix the build on older distros where 'wait' shadows
a global declaration.

- Arnaldo