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Re: [PATCH 0/4] ftrace: Add 'function-fork' trace option (v1)

From Namhyung Kim <namhyung@kernel.org>
Newsgroups linux.kernel
Subject Re: [PATCH 0/4] ftrace: Add 'function-fork' trace option (v1)
Date 2017-03-30 03:50 +0200
Message-ID <tqxnP-7bX-7@gated-at.bofh.it> (permalink)
References <tqaUh-87F-3@gated-at.bofh.it> <tqwBr-6DQ-11@gated-at.bofh.it>
Organization linux.* mail to news gateway

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Hi Masami,

On Thu, Mar 30, 2017 at 9:54 AM, Masami Hiramatsu <mhiramat@kernel.org> wrote:
> On Wed, 29 Mar 2017 10:46:21 +0900
> Namhyung Kim <namhyung@kernel.org> wrote:
>
>> Hello,
>>
>> This patchset add 'function-fork' option to function tracer which
>> makes pid filter to be inherited like 'event-fork' does.  During the
>> test, I found a bug of pid filter on an instance directory.  The patch
>> 1 fixes it and maybe it should go to the stable tree.
>>
>> The function-fork option is disabled by default as event-fork does,
>> but we might consider changing the default since it seems to be more
>> natural from an user's perspective IMHO.
>
> By the way, I thought that event-fork option also effected to
> function tracer. Is there any reason we should separate those?
> I mean, we can add "trace-fork" option instead of "function-fork"
> for setting both pid filters at once.
>
> Thank you,

I'm ok with combining two options.

Thanks
Namhyung

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Thread

[PATCH 0/4] ftrace: Add 'function-fork' trace option (v1) Namhyung Kim <namhyung@kernel.org> - 2017-03-29 03:50 +0200
  [PATCH 3/4] selftests: ftrace: Add -l/--logdir option Namhyung Kim <namhyung@kernel.org> - 2017-03-29 03:50 +0200
    Re: [PATCH 3/4] selftests: ftrace: Add -l/--logdir option Masami Hiramatsu <mhiramat@kernel.org> - 2017-03-29 10:40 +0200
  [PATCH 4/4] selftests: ftrace: Add a testcase for function PID filter Namhyung Kim <namhyung@kernel.org> - 2017-03-29 03:50 +0200
  [PATCH 2/4] ftrace: Add 'function-fork' trace option Namhyung Kim <namhyung@kernel.org> - 2017-03-29 03:50 +0200
    Re: [PATCH 2/4] ftrace: Add 'function-fork' trace option Steven Rostedt <rostedt@goodmis.org> - 2017-03-29 04:20 +0200
      Re: [PATCH 2/4] ftrace: Add 'function-fork' trace option Steven Rostedt <rostedt@goodmis.org> - 2017-03-29 04:30 +0200
  Re: [PATCH 0/4] ftrace: Add 'function-fork' trace option (v1) Steven Rostedt <rostedt@goodmis.org> - 2017-03-29 04:00 +0200
  Re: [PATCH 0/4] ftrace: Add 'function-fork' trace option (v1) Masami Hiramatsu <mhiramat@kernel.org> - 2017-03-30 03:00 +0200
    Re: [PATCH 0/4] ftrace: Add 'function-fork' trace option (v1) Namhyung Kim <namhyung@kernel.org> - 2017-03-30 03:50 +0200
      Re: [PATCH 0/4] ftrace: Add 'function-fork' trace option (v1) Steven Rostedt <rostedt@goodmis.org> - 2017-03-30 15:50 +0200
        Re: [PATCH 0/4] ftrace: Add 'function-fork' trace option (v1) Masami Hiramatsu <mhiramat@kernel.org> - 2017-03-31 00:30 +0200
          Re: [PATCH 0/4] ftrace: Add 'function-fork' trace option (v1) Steven Rostedt <rostedt@goodmis.org> - 2017-03-31 00:30 +0200

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