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    SubjectRe: [PATCH 1/2] perf bench: port memcpy_64.S to perf bench
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    On Sat, 2010-10-30 at 01:01 +0900, Hitoshi Mitake wrote:
    > This patch ports arch/x86/lib/memcpy_64.S to "perf bench mem".
    > When PERF_BENCH is defined at preprocessor level,
    > memcpy_64.S is preprocessed to includable form from the sources
    > under tools/perf for benchmarking programs.
    >
    > Signed-off-by: Hitoshi Mitake <mitake@dcl.info.waseda.ac.jp>
    > Cc: Ma Ling: <ling.ma@intel.com>
    > Cc: Zhao Yakui <yakui.zhao@intel.com>
    > Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
    > Cc: Arnaldo Carvalho de Melo <acme@redhat.com>
    > Cc: Paul Mackerras <paulus@samba.org>
    > Cc: Frederic Weisbecker <fweisbec@gmail.com>
    > Cc: Steven Rostedt <rostedt@goodmis.org>
    > Cc: Thomas Gleixner <tglx@linutronix.de>
    > Cc: H. Peter Anvin <hpa@zytor.com>
    > ---
    > arch/x86/lib/memcpy_64.S | 30 ++++++++++++++++++++++++++++++
    > 1 files changed, 30 insertions(+), 0 deletions(-)
    >
    > diff --git a/arch/x86/lib/memcpy_64.S b/arch/x86/lib/memcpy_64.S
    > index 75ef61e..72c6dfe 100644
    > --- a/arch/x86/lib/memcpy_64.S
    > +++ b/arch/x86/lib/memcpy_64.S
    > @@ -1,10 +1,23 @@
    > /* Copyright 2002 Andi Kleen */
    >
    > +/*
    > + * perf bench adoption by Hitoshi Mitake
    > + * PERF_BENCH means that this file is included from
    > + * the source files under tools/perf/ for benchmark programs.
    > + *
    > + * You don't have to care about PERF_BENCH when
    > + * you are working on the kernel.
    > + */
    > +
    > +#ifndef PERF_BENCH

    I don't like littering the actual kernel code with tools/perf/
    ifdeffery..


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