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

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Message-ID: <CAMEtUuzuu9T1eHyh27tdyj1+BnFta9-dzK8q7P9Y7x4iQrk+Xw@mail.gmail.com>
Date:	Mon, 9 Feb 2015 21:51:05 -0800
From:	Alexei Starovoitov <ast@...mgrid.com>
To:	Steven Rostedt <rostedt@...dmis.org>
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, 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.
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