linux-kernel - Re: [PATCH 5/5] sched: Avoid throttle_cfs_rq racing with period

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Date:	Thu, 17 Oct 2013 00:06:09 +0200
From:	Peter Zijlstra <peterz@...radead.org>
To:	Ben Segall <bsegall@...gle.com>
Cc:	mingo@...hat.com, pjt@...gle.com, linux-kernel@...r.kernel.org
Subject: Re: [PATCH 5/5] sched: Avoid throttle_cfs_rq racing with
 period_timer stopping

On Wed, Oct 16, 2013 at 11:16:32AM -0700, Ben Segall wrote:
> +#ifdef CONFIG_CFS_BANDWIDTH
> +	SEQ_printf(m, "  .%-30s: %d\n", "tg->cfs_bandwidth.timer_active",
> +			cfs_rq->tg->cfs_bandwidth.timer_active);
> +	SEQ_printf(m, "  .%-30s: %d\n", "throttled",
> +			cfs_rq->throttled);
> +	SEQ_printf(m, "  .%-30s: %d\n", "throttle_count",
> +			cfs_rq->throttle_count);
> +#endif

Not really your fault; but that function just cries for something like:

#define SEQ_cfs_rq(m, member)		\
	SEQ_printf(m, "  .%-30s: %ld\n", #member, (long)cfs_rq->member)

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