Re: [RFC] btf: Some structs are doubled because of struct ring_buffer

Steven Rostedt
2019-12-18T16:22:27Z

On Wed, 18 Dec 2019 17:14:01 +0100
Jiri Olsa <jolsa@redhat.com> wrote:

> On Sat, Dec 14, 2019 at 12:35:10PM +0100, Jiri Olsa wrote:
> > On Fri, Dec 13, 2019 at 02:05:31PM -0500, Steven Rostedt wrote:
> >
> > SNIP
> >
> > > struct trace_array *tr = filp->private_data;
> > > - struct ring_buffer *buffer = tr->trace_buffer.buffer;
> > > + struct trace_buffer *buffer = tr->trace_buffer.buffer;
> > > unsigned long val;
> > > int ret;
> > >
> > > diff --git a/kernel/trace/trace.h b/kernel/trace/trace.h
> > > index 63bf60f79398..308fcd673102 100644
> > > --- a/kernel/trace/trace.h
> > > +++ b/kernel/trace/trace.h
> > > @@ -178,7 +178,7 @@ struct trace_option_dentry;
> > >
> > > struct trace_buffer {
> > > struct trace_array *tr;
> > > - struct ring_buffer *buffer;
> > > + struct trace_buffer *buffer;
> >
> > perf change is fine, but 'trace_buffer' won't work because
> > we already have 'struct trace_buffer' defined in here
> >
> > maybe we could change this name to trace_buffer_array?
>
> ..like in patch below? it's independent of your previous changes
>
>

Actually, I would prefer to call it either trace_array_buffer, or just
array_buffer.

-- Steve