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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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