linux-kernel - Re: [PATCH 6/7] perf data: Fix duplicate field names and avoid reserved keywords

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Message-ID: <20150418204536.GB26943@krava.redhat.com>
Date:	Sat, 18 Apr 2015 22:45:36 +0200
From:	Jiri Olsa <jolsa@...hat.com>
To:	Jérémie Galarneau 
	<jeremie.galarneau@...icios.com>
Cc:	Jiri Olsa <jolsa@...nel.org>,
	Arnaldo Carvalho de Melo <acme@...nel.org>,
	David Ahern <dsahern@...il.com>,
	Frederic Weisbecker <fweisbec@...il.com>,
	He Kuang <hekuang@...wei.com>, Ingo Molnar <mingo@...nel.org>,
	Jeremie Galarneau <jgalar@...icios.com>,
	Namhyung Kim <namhyung@...nel.org>,
	Paul Mackerras <paulus@...ba.org>,
	Peter Zijlstra <a.p.zijlstra@...llo.nl>,
	Sebastian Andrzej Siewior <bigeasy@...utronix.de>,
	Tom Zanussi <tzanussi@...il.com>,
	Wang Nan <wangnan0@...wei.com>,
	lkml <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH 6/7] perf data: Fix duplicate field names and avoid
 reserved keywords

On Sat, Apr 18, 2015 at 02:56:00PM -0400, Jérémie Galarneau wrote:
> On Sat, Apr 18, 2015 at 11:50 AM, Jiri Olsa <jolsa@...nel.org> wrote:
> > From: Wang Nan <wangnan0@...wei.com>
> >
> > Some parameters of syscall tracepoints named as 'nr', 'event', etc.
> > When dealing with them, perf convert to ctf meets some problem:
> >
> >  1. If a parameter with name 'nr', it will duplicate syscall's
> >     common field 'nr'. One such syscall is io_submit().
> >
> >  2. If a parameter with name 'event', it is denied to be inserted
> >     because 'event' is a babeltrace keywork. One such syscall is
> >     epoll_ctl.
> 
> Minor nitpick: "event" is a reserved keyword in the CTF specification
> [1], the rule is only enforced by Babeltrace. Also, keywork ->
> keyword.

thanks,

Arnaldo, any chance you could change it? (with ack from
He Kuang of course), or do you need a respin..

jirka
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