linux-kernel - Re: [PATCH v2 05/15] perf ftrace: factor out function write_tracing_file

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Date:   Tue, 7 Jul 2020 12:10:41 -0400
From:   Steven Rostedt <rostedt@...dmis.org>
To:     Changbin Du <changbin.du@...il.com>
Cc:     Jiri Olsa <jolsa@...hat.com>,
        Arnaldo Carvalho de Melo <acme@...nel.org>,
        Peter Zijlstra <peterz@...radead.org>,
        Ingo Molnar <mingo@...hat.com>,
        Namhyung Kim <namhyung@...nel.org>,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH v2 05/15] perf ftrace: factor out function
 write_tracing_file_int()

On Tue, 7 Jul 2020 12:09:23 -0400
Steven Rostedt <rostedt@...dmis.org> wrote:

> On Sat, 27 Jun 2020 21:36:44 +0800
> Changbin Du <changbin.du@...il.com> wrote:
> 
> > We will reuse this function later.
> >   
> 
> BTW, trace-cmd.git now has a libtracefs.so library, which I'm hoping
> within a month to have as a stand alone (probably along with
> libtraceevent and even a libtracecmd).
> 
>   https://git.kernel.org/pub/scm/utils/trace-cmd/trace-cmd.git/tree/lib/tracefs

And the API is defined in this header:

 https://git.kernel.org/pub/scm/utils/trace-cmd/trace-cmd.git/tree/include/tracefs/tracefs.h

-- Steve

> 
> This is a library made to interact with the tracefs directory to remove
> reimplementing it all over the place.