From: Peter Zijlstra <peterz@infradead.org>
To: Stephane Eranian <eranian@google.com>
Cc: linux-kernel@vger.kernel.org, mingo@elte.hu, ak@linux.intel.com,
acme@redhat.com, jolsa@redhat.com, zheng.z.yan@intel.com,
bp@alien8.de, maria.n.dimakopoulou@gmail.com
Subject: Re: [PATCH v6 3/4] perf,x86: add Intel RAPL PMU support
Date: Mon, 11 Nov 2013 16:59:05 +0100 [thread overview]
Message-ID: <20131111155905.GM19203@twins.programming.kicks-ass.net> (raw)
In-Reply-To: <1383939963-7750-4-git-send-email-eranian@google.com>
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.
next prev parent reply other threads:[~2013-11-11 15:59 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-11-08 19:45 [PATCH v6 0/4] perf/x86: " Stephane Eranian
2013-11-08 19:46 ` [PATCH v6 1/4] perf: add active_entry list head to struct perf_event Stephane Eranian
2013-11-08 19:46 ` [PATCH v6 2/4] perf stat: add event unit and scale support Stephane Eranian
2013-11-08 19:46 ` [PATCH v6 3/4] perf,x86: add Intel RAPL PMU support Stephane Eranian
2013-11-11 15:59 ` Peter Zijlstra [this message]
2013-11-11 16:07 ` Stephane Eranian
2013-11-11 16:16 ` Peter Zijlstra
2013-11-12 14:14 ` Stephane Eranian
2013-11-12 15:02 ` Andi Kleen
2013-11-08 19:46 ` [PATCH v6 4/4] perf,x86: add RAPL hrtimer support Stephane Eranian
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