linux-kernel - Re: [PATCH V4 02/16] perf, core: introduce pmu context switch callback

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Message-ID: <20140702101216.GV6758@twins.programming.kicks-ass.net>
Date:	Wed, 2 Jul 2014 12:12:16 +0200
From:	Peter Zijlstra <peterz@...radead.org>
To:	"Yan, Zheng" <zheng.z.yan@...el.com>
Cc:	linux-kernel@...r.kernel.org, mingo@...nel.org, acme@...radead.org,
	eranian@...gle.com, andi@...stfloor.org
Subject: Re: [PATCH V4 02/16] perf, core: introduce pmu context switch
 callback

On Mon, Jun 30, 2014 at 04:50:39PM +0800, Yan, Zheng wrote:
> @@ -2362,6 +2363,58 @@ unlock:
>  	}
>  }
>  
> +void perf_sched_cb_disable(struct pmu *pmu)
> +{
> +	__get_cpu_var(perf_sched_cb_usages)--;
> +}
> +
> +void perf_sched_cb_enable(struct pmu *pmu)
> +{
> +	__get_cpu_var(perf_sched_cb_usages)++;
> +}

Those should not be called {dis,en}able, they don't as such do that.
Also we have: this_cpu_{inc,dec} for this.

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