linux-kernel - Re: [PATCH v2 05/12] perf/x86: add cross-HT counter exclusion infrastructure

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Message-ID: <20141021111719.GW23531@worktop.programming.kicks-ass.net>
Date:	Tue, 21 Oct 2014 13:17:19 +0200
From:	Peter Zijlstra <peterz@...radead.org>
To:	Stephane Eranian <eranian@...gle.com>
Cc:	linux-kernel@...r.kernel.org, mingo@...e.hu, ak@...ux.intel.com,
	jolsa@...hat.com, kan.liang@...el.com, bp@...en8.de,
	maria.n.dimakopoulou@...il.com
Subject: Re: [PATCH v2 05/12] perf/x86: add cross-HT counter exclusion
 infrastructure

On Thu, Oct 09, 2014 at 06:34:39PM +0200, Stephane Eranian wrote:
> +struct intel_excl_cntrs {
> +	spinlock_t	lock;
> +
> +	struct intel_excl_states states[2];
> +
> +	int		refcnt;		/* per-core: #HT threads */
> +	unsigned	core_id;	/* per-core: core id */
> +};

lkml.kernel.org/r/20140605074753.GG3213@...ns.programming.kicks-ass.net

lkml.kernel.org/r/CABPqkBR=+xf-yT7+ouNzVp_TdBYpjeNYpCYc+H7fOMFxPuzyog@...l.gmail.com
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