Re: [Bug 210643] libtracefs: Add ways to set the filtering of function tracing

[Steven Rostedt <rostedt@goodmis.org>]

On Wed, 24 Feb 2021 09:39:49 +0200
Tzvetomir Stoyanov <tz.stoyanov@gmail.com> wrote:

> > --- Comment #7 from Steven Rostedt (rostedt@goodmis.org) ---
> > After some discussions on the mailing lists, I found that it is important to
> > establish the requirements that I expect of this API. I'm doing it in the
> > bugzilla instead of the mailing list (but will also forward this to the
> > mailing list), as this is more about the feature request and not about the
> > development of it.
> >
> > The prototype should be:
> >
> >  int tracefs_function_filter(struct tracefs_instance *instance,
> >                              const char * const *filters,
> >                              const char *module,
> >                              boolean reset);  
> 
> I think there should be a complementary API for deleting the filters,
> may be something like
>   int tracefs_function_filter_remove(struct tracefs_instance *instance,
>                                                         const char *
> const *filters,
>                                                         const char *module)
> It should be able to remove the filters, configured by the first API
> with the same "filters, module" input parameters.

Yes, I was going to even mention this, but figured my requirements were
long enough ;-)


-- Steve