linux-kernel - Re: [PATCH] [RFC] perf: robustify proc and debugfs file recording

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Message-ID: <CAPz6YkWU-CtUP-dNVKjp8qw87gBoLjJ5fCQ5g+OzKa5yhLcn=g@mail.gmail.com>
Date:	Tue, 12 Jul 2011 14:19:09 -0700
From:	Sonny Rao <sonnyrao@...omium.org>
To:	acme@...hat.com
Cc:	anton@...ba.org, rostedt@...dmis.org,
	Sonny Rao <sonnyrao@...omium.org>,
	Peter Zijlstra <a.p.zijlstra@...llo.nl>,
	Paul Mackerras <paulus@...ba.org>, Ingo Molnar <mingo@...e.hu>,
	Arnaldo Carvalho de Melo <acme@...stprotocols.net>,
	linux-kernel@...r.kernel.org
Subject: Re: [PATCH] [RFC] perf: robustify proc and debugfs file recording

On Tue, Jul 12, 2011 at 2:15 PM, Sonny Rao <sonnyrao@...omium.org> wrote:
> While attempting to create a timechart of boot up I found
> perf didn't tolerate modules being loaded/unloaded.  This patch
> fixes this by reading the file once and then writing the size
> read at the correct point in the file.  It also simplifies the
> code somewhat.
>
> Signed-off-by: Sonny Rao <sonnyrao@...omium.org>
> ---

Anton or Paul, I cc'ed you hoping you could give this a try on a
big-endian box.  There's some IMO less than pleasant code to
make sure it handles big-endian correctly, that I wasn't able to test.

Thanks
Sonny
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