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Message-Id: <1253878957.26976.1.camel@twins> Date: Fri, 25 Sep 2009 13:42:37 +0200 From: Peter Zijlstra <peterz@...radead.org> To: Arjan van de Ven <arjan@...radead.org> Cc: linux-kernel@...r.kernel.org, mingo@...e.hu, Frederic Weisbecker <fweisbec@...il.com> Subject: Re: [RFC PATCH] perf_core: provide a kernel-internal interface to get to performance counters On Fri, 2009-09-25 at 12:25 +0200, Arjan van de Ven wrote: > From 5db5cd76f3c16c9f6093f54d1ccfb97d04b9a1ca Mon Sep 17 00:00:00 2001 > From: Arjan van de Ven <arjan@...ux.intel.com> > Date: Fri, 25 Sep 2009 12:20:57 +0200 > Subject: [PATCH] perf_core: provide a kernel-internal interface to get to performance counters > > There are reasons for kernel code to ask for, and use, performance counters. > For example, in CPU freq governors this tends to be a good idea, but there > are other examples possible as well of course. > > This patch adds the needed bits to do enable this functionality; they have been > tested in an experimental cpufreq driver that I'm working on, and the changes > are all that I needed to access counters properly. > > Signed-off-by: Arjan van de Ven <arjan@...ux.intel.com> Looks fine to me, can go in when we acquire a user. -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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