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Date: Mon, 11 Nov 2013 16:59:05 +0100
From: Peter Zijlstra <peterz@...radead.org>
To: Stephane Eranian <eranian@...gle.com>
Cc: linux-kernel@...r.kernel.org, mingo@...e.hu, ak@...ux.intel.com,
acme@...hat.com, jolsa@...hat.com, zheng.z.yan@...el.com,
bp@...en8.de, maria.n.dimakopoulou@...il.com
Subject: Re: [PATCH v6 3/4] perf,x86: add Intel RAPL PMU support
On Fri, Nov 08, 2013 at 08:46:02PM +0100, Stephane Eranian wrote:
> +static DEFINE_SPINLOCK(rapl_hotplug_lock);
What is this thing protecting?
Like last time it appears to be used only from hotplug notifier
callbacks and those are already fully serialized.
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