From: Arnaldo Carvalho de Melo <acme@kernel.org>
To: Peter Zijlstra <peterz@infradead.org>
Cc: Steven Rostedt <rostedt@goodmis.org>,
Ingo Molnar <mingo@kernel.org>,
Taeung Song <treeze.taeung@gmail.com>,
linux-kernel@vger.kernel.org, Jiri Olsa <jolsa@kernel.org>,
Namhyung Kim <namhyung@kernel.org>,
Thomas Gleixner <tglx@linutronix.de>,
Lai Jiangshan <jiangshanlai@gmail.com>
Subject: Re: [RFC] Re: [PATCH v3 1/2] tracing/syscalls: Rename variable 'nr' to '__syscall_nr'
Date: Mon, 29 Feb 2016 11:21:11 -0300 [thread overview]
Message-ID: <20160229142111.GG8720@kernel.org> (raw)
In-Reply-To: <20160227151357.GE6356@twins.programming.kicks-ass.net>
Em Sat, Feb 27, 2016 at 04:13:57PM +0100, Peter Zijlstra escreveu:
> On Fri, Feb 26, 2016 at 10:57:13AM -0300, Arnaldo Carvalho de Melo wrote:
>
> > Ingo, Peter, have you guys followed this case?
> >
> > Summary: Some tracepoint have multiple fields with the same name, 'nr',
> > the first one is a unique syscall ID, the other is a syscall
> > argument:
>
> I'm all for pushing the limits on tracepoint ABI. I'm all for making it
> less rigid. So if we can get away with changing this under the promise
> of helping fixup fallout, I'm all for it.
>
> That means we can always just change tracepoints, and they're not really
> ABI at all.
I'll take that as an Acked-by, and will apply Taeung/Steven's patch for
the kernel + the builtin-trace.c change, Ok everybody?
- Arnaldo
prev parent reply other threads:[~2016-02-29 14:21 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-02-26 13:14 [PATCH v3 1/2] tracing/syscalls: Rename variable 'nr' to '__syscall_nr' Taeung Song
2016-02-26 13:57 ` [RFC] " Arnaldo Carvalho de Melo
2016-02-26 18:23 ` Steven Rostedt
2016-02-26 19:03 ` Arnaldo Carvalho de Melo
2016-02-27 16:10 ` Taeung Song
2016-02-27 18:34 ` Steven Rostedt
2016-02-28 7:43 ` Taeung Song
2016-03-05 8:13 ` [tip:perf/core] tracing/syscalls: Rename "/format" tracepoint field name "nr" to "__syscall_nr: tip-bot for Taeung Song
2016-02-27 15:13 ` [RFC] Re: [PATCH v3 1/2] tracing/syscalls: Rename variable 'nr' to '__syscall_nr' Peter Zijlstra
2016-02-29 14:21 ` Arnaldo Carvalho de Melo [this message]
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