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Date: Fri, 11 Jun 2010 23:04:06 +0200
From: Frederic Weisbecker <fweisbec@gmail.com>
To: Peter Zijlstra <peterz@infradead.org>
Cc: paulus <paulus@samba.org>, stephane eranian <eranian@googlemail.com>,
       Robert Richter <robert.richter@amd.com>,
       Will Deacon <will.deacon@arm.com>, Paul Mundt <lethal@linux-sh.org>,
       LKML <linux-kernel@vger.kernel.org>
Subject: Re: perf_disable()
Message-ID: <20100611210405.GC5234@nowhere>
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On Fri, Jun 11, 2010 at 06:29:44PM +0200, Peter Zijlstra wrote:
> There is a fun little recursion issue with perf_adjust_period(), where
> if we fully removed perf_disable() we could end up calling pmu::stop()
> twice and such.


We can have a local_t made nesting level on the stop/start that could easily
deal with this.

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