linux-kernel - Re: [PATCH 5/7] oprofile: Abstract the perf-events backend

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Message-ID: <20101006183422.GV13563@erda.amd.com>
Date:	Wed, 6 Oct 2010 20:34:22 +0200
From:	Robert Richter <robert.richter@....com>
To:	Matt Fleming <matt@...sole-pimps.org>
CC:	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>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	Deng-Cheng Zhu <dengcheng.zhu@...il.com>,
	Grant Likely <grant.likely@...retlab.ca>
Subject: Re: [PATCH 5/7] oprofile: Abstract the perf-events backend

On 04.10.10 16:44:23, 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>
> Tested-by: Will Deacon <will.deacon@....com>
> ---
>  arch/arm/oprofile/Makefile       |    4 +
>  arch/arm/oprofile/common.c       |  319 -------------------------------------
>  drivers/oprofile/oprofile_perf.c |  326 ++++++++++++++++++++++++++++++++++++++
>  include/linux/oprofile.h         |    6 +
>  4 files changed, 336 insertions(+), 319 deletions(-)
>  create mode 100644 drivers/oprofile/oprofile_perf.c

This patch looks good.

-Robert

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

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