linux-kernel - Re: [PATCH 06/32] x86/intel_rdt: Hot cpu support for Cache Allocation

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Message-ID: <alpine.DEB.2.10.1607211245270.7355@vshiva-Udesk>
Date:	Thu, 21 Jul 2016 12:46:17 -0700 (PDT)
From:	Shivappa Vikas <vikas.shivappa@...ux.intel.com>
To:	Thomas Gleixner <tglx@...utronix.de>
cc:	Fenghua Yu <fenghua.yu@...el.com>, Ingo Molnar <mingo@...e.hu>,
	"H. Peter Anvin" <h.peter.anvin@...el.com>,
	Tony Luck <tony.luck@...el.com>, Tejun Heo <tj@...nel.org>,
	Borislav Petkov <bp@...e.de>,
	Stephane Eranian <eranian@...gle.com>,
	Peter Zijlstra <peterz@...radead.org>,
	Marcelo Tosatti <mtosatti@...hat.com>,
	David Carrillo-Cisneros <davidcc@...gle.com>,
	Ravi V Shankar <ravi.v.shankar@...el.com>,
	Vikas Shivappa <vikas.shivappa@...ux.intel.com>,
	Sai Prakhya <sai.praneeth.prakhya@...el.com>,
	linux-kernel <linux-kernel@...r.kernel.org>, x86 <x86@...nel.org>
Subject: Re: [PATCH 06/32] x86/intel_rdt: Hot cpu support for Cache
 Allocation



On Wed, 13 Jul 2016, Thomas Gleixner wrote:

> On Tue, 12 Jul 2016, Fenghua Yu wrote:
>>  static int __init intel_rdt_late_init(void)
>>  {
>>  	struct cpuinfo_x86 *c = &boot_cpu_data;
>> @@ -261,9 +331,15 @@ static int __init intel_rdt_late_init(void)
>>  		goto out_err;
>>  	}
>>
>> +	cpu_notifier_register_begin();
>> +
>>  	for_each_online_cpu(i)
>>  		rdt_cpumask_update(i);
>>
>> +	__hotcpu_notifier(intel_rdt_cpu_notifier, 0);
>
> CPU hotplug notifiers are phased out. Please use the new state machine
> interfaces.

Ok, I just see the patch for cqm with the new state machine. Also would need to 
remove the usage of the static tmp cpumask like we did in cqm.

Thanks,
Vikas

>
> Thanks,
>
> 	tglx
>