linux-kernel - Re: [PATCH 2/7] perf: Generalize task_function

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Message-ID: <87d1u3bxs9.fsf@ashishki-desk.ger.corp.intel.com>
Date:	Fri, 18 Dec 2015 17:07:34 +0200
From:	Alexander Shishkin <alexander.shishkin@...ux.intel.com>
To:	Peter Zijlstra <peterz@...radead.org>
Cc:	Ingo Molnar <mingo@...hat.com>, linux-kernel@...r.kernel.org,
	vince@...ter.net, eranian@...gle.com, johannes@...solutions.net,
	Arnaldo Carvalho de Melo <acme@...radead.org>
Subject: Re: [PATCH 2/7] perf: Generalize task_function_call()ers

Peter Zijlstra <peterz@...radead.org> writes:

> @@ -2774,9 +2696,6 @@ static void perf_event_context_sched_in(
>  	 */
>  	cpu_ctx_sched_out(cpuctx, EVENT_FLEXIBLE);
>  
> -	if (ctx->nr_events)
> -		cpuctx->task_ctx = ctx;
> -
>  	perf_event_sched_in(cpuctx, cpuctx->task_ctx, task);

This then should probably become

  	perf_event_sched_in(cpuctx, ctx, task);

otherwise task contexts just don't get scheduled any more.

Regards,
--
Alex
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