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Message-ID: <18969.56962.588194.319564@cargo.ozlabs.ibm.com>
Date: Mon, 25 May 2009 09:55:46 +1000
From: Paul Mackerras <paulus@samba.org>
To: Ingo Molnar <mingo@elte.hu>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>, linux-kernel@vger.kernel.org,
       Corey Ashford <cjashfor@linux.vnet.ibm.com>,
       Thomas Gleixner <tglx@linutronix.de>
Subject: Re: [PATCH 2/2] perf_counter: optimize context switch between
	identical inherited contexts
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Ingo Molnar writes:

> OTOH, enabling/disabling counters in specific functions of a library 
> might be a valid use-case.

If that's the use case, wouldn't we wouldn't the "enable" to restore
the previous state, rather than enabling all counters?

Paul.