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Date: Tue, 5 Apr 2016 16:48:03 +0200 From: Peter Zijlstra <peterz@...radead.org> To: Luca Abeni <luca.abeni@...tn.it> Cc: linux-kernel@...r.kernel.org, Ingo Molnar <mingo@...hat.com>, Juri Lelli <juri.lelli@....com> Subject: Re: [RFC v2 3/7] Improve the tracking of active utilisation On Fri, Apr 01, 2016 at 05:12:29PM +0200, Luca Abeni wrote: > + /* > + * We cannot use inactive_task_timer() to invoke sub_running_bw() > + * at the 0-lag time, because the task could have been migrated > + * while SCHED_OTHER in the meanwhile. > + */ > + if (hrtimer_active(&p->dl.inactive_timer) && > + !hrtimer_callback_running(&p->dl.inactive_timer)) > sub_running_bw(&p->dl, &rq->dl); hrtimer_is_queued() ?
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