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Subject: Re: [PATCH] perf_events: fix bug in AMD per-cpu initialization
From: Peter Zijlstra <peterz@infradead.org>
To: Stephane Eranian <eranian@google.com>
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Date: Tue, 23 Mar 2010 16:07:48 +0100
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On Tue, 2010-03-23 at 15:55 +0100, Stephane Eranian wrote:
> What's the point of CPU_ONLINE vs. CPU_STARTING if you're saying the
> former is never right? Why not move CPU_ONLINE to the right place and
> drop CPU_STARTING?

Its right for a lot of things, just not for perf, we need to be ready
and done by the time the cpu starts scheduling.