lkml.org 
[lkml]   [2020]   [Oct]   [7]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
Date
From
SubjectRe: [PATCH v4 5/7] tracing: Add README information for synthetic_events file
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>

\
 
 \ /
  Last update: 2020-10-08 02:38    [W:0.069 / U:0.772 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site