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SubjectRe: [RFC PATCH -tip 0/9]ftrace, kprobes: Ftrace-based kprobe optimization
(2012/06/04 21:07), Steven Rostedt wrote:
> On Mon, 2012-06-04 at 20:45 +0900, Masami Hiramatsu wrote:
>> I think if I just register kprobe's ftrace_ops without start
>> tracing, I think we can just do tracing without "notrace".
>
> You should be able to register the filter first, and then register
> function tracer. If you register without setting the filter, you will
> start tracing all functions.
>
> I think that may be the problem you are seeing. You want to register the
> filter first and then the ftrace_ops.

Ah, that's all what I need to know! :)
OK, I'll do that for avoiding recursion problem.

Thanks!


--
Masami HIRAMATSU
Software Platform Research Dept. Linux Technology Center
Hitachi, Ltd., Yokohama Research Laboratory
E-mail: masami.hiramatsu.pt@hitachi.com


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