linux-kernel - Re: [PATCH 5/6] tools lib traceevent: Add page

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Date:	Sat, 13 Apr 2013 10:17:26 +0900
From:	Namhyung Kim <namhyung@...nel.org>
To:	Steven Rostedt <rostedt@...dmis.org>
Cc:	Arnaldo Carvalho de Melo <acme@...stprotocols.net>,
	Frederic Weisbecker <fweisbec@...il.com>,
	Peter Zijlstra <a.p.zijlstra@...llo.nl>,
	Ingo Molnar <mingo@...nel.org>,
	Namhyung Kim <namhyung.kim@....com>,
	LKML <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH 5/6] tools lib traceevent: Add page_size field to pevent

Hi Steve,

2013-04-11 (목), 10:40 -0400, Steven Rostedt:
> On Thu, 2013-04-11 at 10:39 -0400, Steven Rostedt wrote:
> > On Thu, 2013-04-11 at 21:04 +0900, Namhyung Kim wrote:
> > > From: Namhyung Kim <namhyung.kim@....com>
> > > 
> > > It's for saving the page size of traced system.
> > 
> > Can you add a bit more detail in the change log about why this patch is
> > necessary.
> 
> For now, you can add my
> 
> Acked-by: Steven Rostedt <rostedt@...dmis.org>
> 
> for all but this patch.

Thanks!

> 
> I just want to know more about this patch before I ack it.

The page size of traced system can be different than current system's
because the recorded data file might be analyzed in a different machine.
In this case we should use original page size of traced system when
accessing the data file, so this information needs to be saved.

Thanks,
Namhyung


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