linux-kernel - Re: [PATCH V3 2/2] x86/perf/intel/uncore: Make Intel rapl modular

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Date:	Sun, 20 Mar 2016 13:04:05 +0100 (CET)
From:	Thomas Gleixner <tglx@...utronix.de>
To:	Kan Liang <kan.liang@...el.com>
cc:	peterz@...radead.org, ak@...ux.intel.com, eranian@...gle.com,
	mingo@...hat.com, linux-kernel@...r.kernel.org
Subject: Re: [PATCH V3 2/2] x86/perf/intel/uncore: Make Intel rapl modular

On Sat, 19 Mar 2016, kan.liang@...el.com wrote:
>  
> +static struct notifier_block rapl_cpu_nb = {
> +	.notifier_call	= rapl_cpu_notifier,

Hmm. Missed that in the first round. That lacks

     .priority       = CPU_PRI_PERF + 1,

because the driver needs to migrate its stuff away before the core code gets
notified about the cpu going down.

Thanks,

	tglx