linux-kernel - Re: [PATCH V2 3/4] oprofile: Abstract the perf-events backend

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Date:	Fri, 27 Aug 2010 14:59:56 +0200
From:	Robert Richter <robert.richter@....com>
To:	Matt Fleming <matt@...sole-pimps.org>
CC:	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	Will Deacon <will.deacon@....com>,
	Paul Mundt <lethal@...ux-sh.org>,
	Russell King <linux@....linux.org.uk>,
	"linux-arm-kernel@...ts.infradead.org" 
	<linux-arm-kernel@...ts.infradead.org>,
	"linux-sh@...r.kernel.org" <linux-sh@...r.kernel.org>,
	Peter Zijlstra <peterz@...radead.org>,
	Ingo Molnar <mingo@...e.hu>,
	Frederic Weisbecker <fweisbec@...il.com>,
	Arnaldo Carvalho de Melo <acme@...hat.com>,
	"linux-arch@...r.kernel.org" <linux-arch@...r.kernel.org>
Subject: Re: [PATCH V2 3/4] oprofile: Abstract the perf-events backend

On 26.08.10 15:09:18, Matt Fleming wrote:
> Move the perf-events backend from arch/arm/oprofile into
> drivers/oprofile so that the code can be shared between architectures.
> 
> This allows each architecture to maintain only a single copy of the
> PMU accessor functions instead of one for both perf and OProfile. It
> also becomes possible for other architectures to delete much of their
> OProfile code in favour of the common code now available in
> drivers/oprofile/oprofile_perf.c.
> 
> Signed-off-by: Matt Fleming <matt@...sole-pimps.org>
> ---
>  arch/arm/oprofile/Makefile       |    4 +
>  arch/arm/oprofile/common.c       |  215 +++-----------------------------------
>  drivers/oprofile/oprofile_perf.c |  209 ++++++++++++++++++++++++++++++++++++
>  include/linux/oprofile.h         |   12 ++
>  4 files changed, 242 insertions(+), 198 deletions(-)
>  create mode 100644 drivers/oprofile/oprofile_perf.c

Could we split this patch in 2 for better review? One that only moves
the code and a 2nd that changes it.

-Robert

-- 
Advanced Micro Devices, Inc.
Operating System Research Center

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