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Message-ID: <20151218164704.GQ6344@twins.programming.kicks-ass.net>
Date: Fri, 18 Dec 2015 17:47:04 +0100
From: Peter Zijlstra <peterz@...radead.org>
To: Alexander Shishkin <alexander.shishkin@...ux.intel.com>
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
On Fri, Dec 18, 2015 at 05:07:34PM +0200, Alexander Shishkin wrote:
> 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.
Very good, thanks!
Running with that triggers another WARN, I'll have a look at that later
tonight.
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