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From: Masami Hiramatsu on 25 Dec 2009 23:10
KOSAKI Motohiro wrote:
> Latest kprobetrace can remove probe points selectively. thus
> documentation should be updated too.

Ah, right.

>
> Signed-off-by: KOSAKI Motohiro <kosaki.motohiro(a)jp.fujitsu.com>

Acked-by: Masami Hiramatsu <mhiramat(a)redhat.com>

Thank you very much!

> Cc: Masami Hiramatsu <mhiramat(a)redhat.com>
> ---
> Documentation/trace/kprobetrace.txt | 7 +++++++
> 1 files changed, 7 insertions(+), 0 deletions(-)
>
> diff --git a/Documentation/trace/kprobetrace.txt b/Documentation/trace/kprobetrace.txt
> index 2be6e19..8c88930 100644
> --- a/Documentation/trace/kprobetrace.txt
> +++ b/Documentation/trace/kprobetrace.txt
> @@ -24,6 +24,7 @@ Synopsis of kprobe_events
> -------------------------
> p[:[GRP/]EVENT] SYMBOL[+offs]|MEMADDR [FETCHARGS] : Set a probe
> r[:[GRP/]EVENT] SYMBOL[+0] [FETCHARGS] : Set a return probe
> + -:[GRP/]EVENT : Clear a probe
>
> GRP : Group name. If omitted, use "kprobes" for it.
> EVENT : Event name. If omitted, the event name is generated
> @@ -121,6 +122,12 @@ print fmt: "(%lx) dfd=%lx filename=%lx flags=%lx mode=%lx", REC->ip, REC->dfd, R
>
> This clears all probe points.
>
> + Or,
> +
> + echo -:myprobe >> kprobe_events
> +
> + This clears probe points selectively.
> +
> Right after definition, each event is disabled by default. For tracing these
> events, you need to enable it.
>

--
Masami Hiramatsu

Software Engineer
Hitachi Computer Products (America), Inc.
Software Solutions Division

e-mail: mhiramat(a)redhat.com

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