linux-kernel - Re: [PATCH 4/9] perf: Generic intel uncore support

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Date:	Fri, 04 May 2012 19:57:06 +0200
From:	Peter Zijlstra <a.p.zijlstra@...llo.nl>
To:	"Yan, Zheng" <zheng.z.yan@...el.com>
Cc:	mingo@...e.hu, andi@...stfloor.org, eranian@...gle.com,
	jolsa@...hat.com, ming.m.lin@...el.com,
	linux-kernel@...r.kernel.org
Subject: Re: [PATCH 4/9] perf: Generic intel uncore support

On Fri, 2012-05-04 at 15:33 +0800, Yan, Zheng wrote:
> Thank you for your suggestion. One reason I choose hash table is that I'm uncertain
> the system behavior when hot-plug a CPU, the PCI uncore device is probed first or
> the CPU data is initialized first? If the PCI device is probed first, I think your
> code won't work because topology_physical_package_id may return incorrect id.

It had better first initialize the cpu data before it starts probing its
devices. Doing it the other way around just doesn't make any sense.
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