linux-kernel - Re: [PATCH v2 00/40] tracing: Inter-event (e.g. latency) support

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Date:   Thu, 21 Sep 2017 16:11:25 -0500
From:   Tom Zanussi <tom.zanussi@...ux.intel.com>
To:     Steven Rostedt <rostedt@...dmis.org>
Cc:     tglx@...utronix.de, mhiramat@...nel.org, namhyung@...nel.org,
        vedang.patel@...el.com, bigeasy@...utronix.de,
        joel.opensrc@...il.com, joelaf@...gle.com,
        mathieu.desnoyers@...icios.com, baohong.liu@...el.com,
        linux-kernel@...r.kernel.org, linux-rt-users@...r.kernel.org
Subject: Re: [PATCH v2 00/40] tracing: Inter-event (e.g. latency) support

Hi Steve,

On Thu, 2017-09-21 at 16:20 -0400, Steven Rostedt wrote:
> On Tue, 19 Sep 2017 13:44:28 -0500
> Tom Zanussi <tom.zanussi@...ux.intel.com> wrote:
> 
> > Yeah, it's almost ready.  At this point, I've addressed all the comments
> > except for:
> > 
> >  - PATCH v2 25/40] tracing: Add support for dynamic tracepoints
> > 
> >  which I need to do a little bit of research on to figure out what
> > exactly I need to do there.
> 
> Let me know if you need any help.
> 

OK, thanks.

> > 
> > I was also kind of looking for a couple patches from you to fold in
> > which you had mentioned you were going to send for:
> > 
> >  -  [PATCH v2 35/40] tracing: Reverse the order event_mutex/trace_types_lock are taken
> 
> OK, I have a stand alone patch that you don't need to fold in that does
> this properly. I tested the crap out of it (missed a few places), but
> should be good. I'll send that netx.
> 
> 
> >  -  [PATCH v2 40/40] tracing: Add trace_event_buffer_reserve() variant that allows recursion
> 
> I have this working too, but want to test it a little more before
> sending. Once I do, you can add both patches ahead of your series. I
> may just apply them to my tree now and start running them through my
> formal tests.
> 

Thanks for these patches - testing now with the mutex patch you just
sent and the old trace_recursive_lock() patch, hope to have a v3 out
soon.

Tom