Messages in this thread | | | Date | Thu, 8 Oct 2020 09:38:28 +0900 | From | Masami Hiramatsu <> | Subject | Re: [PATCH v4 5/7] tracing: Add README information for synthetic_events file |
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Hi Tom,
On Sun, 4 Oct 2020 17:14:07 -0500 Tom Zanussi <zanussi@kernel.org> wrote:
> Add an entry with a basic description of events/synthetic_events along > with a simple example. > > Signed-off-by: Tom Zanussi <zanussi@kernel.org>
This looks good to me.
Reviewed-by: Masami Hiramatsu <mhiramat@kernel.org>
Thank you,
> --- > kernel/trace/trace.c | 7 ++++++- > 1 file changed, 6 insertions(+), 1 deletion(-) > > diff --git a/kernel/trace/trace.c b/kernel/trace/trace.c > index 3f2533adae72..73fd0e0c0f39 100644 > --- a/kernel/trace/trace.c > +++ b/kernel/trace/trace.c > @@ -5249,7 +5249,12 @@ static const char readme_msg[] = > "\t trace(<synthetic_event>,param list) - generate synthetic event\n" > "\t save(field,...) - save current event fields\n" > #ifdef CONFIG_TRACER_SNAPSHOT > - "\t snapshot() - snapshot the trace buffer\n" > + "\t snapshot() - snapshot the trace buffer\n\n" > +#endif > +#ifdef CONFIG_SYNTH_EVENTS > + " events/synthetic_events\t- Create/append/remove/show synthetic events\n" > + "\t Write into this file to define/undefine new synthetic events.\n" > + "\t example: echo 'myevent u64 lat; char name[]' >> synthetic_events\n" > #endif > #endif > ; > -- > 2.17.1 >
-- Masami Hiramatsu <mhiramat@kernel.org>
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