linux-kernel - Re: [PATCH v3 linux-trace 1/8] tracing: attach eBPF programs to tracepoints and syscalls

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Message-ID: <20150210072745.09ce84f4@grimm.local.home>
Date:	Tue, 10 Feb 2015 07:27:45 -0500
From:	Steven Rostedt <rostedt@...dmis.org>
To:	Alexei Starovoitov <ast@...mgrid.com>
Cc:	Ingo Molnar <mingo@...nel.org>, Namhyung Kim <namhyung@...nel.org>,
	Arnaldo Carvalho de Melo <acme@...radead.org>,
	Jiri Olsa <jolsa@...hat.com>,
	Masami Hiramatsu <masami.hiramatsu.pt@...achi.com>,
	Linux API <linux-api@...r.kernel.org>,
	Network Development <netdev@...r.kernel.org>,
	LKML <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH v3 linux-trace 1/8] tracing: attach eBPF programs to
 tracepoints and syscalls

On Mon, 9 Feb 2015 21:51:05 -0800
Alexei Starovoitov <ast@...mgrid.com> wrote:

> On Mon, Feb 9, 2015 at 8:46 PM, Steven Rostedt <rostedt@...dmis.org> wrote:
> >
> > Looks like this is entirely perf based and does not interact with
> > ftrace at all. In other words, it's perf not tracing.
> >
> > It makes more sense to go through tip than the tracing tree.
> 
> well, all of earlier series were based on ftrace only,
> but I was given convincing enough arguments that
> perf_even_open+ioctl is a better interface :)
> Ok. will rebase on tip in the next version.

That's fine. If this proves useful, I'll probably add the interface
back to ftrace as well.

-- Steve
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