Re: [PATCH v7 6/6] perf-probe: Add user memory access attribute support

From: Masami Hiramatsu
Date: Thu May 09 2019 - 10:43:02 EST


On Thu, 9 May 2019 11:17:35 +0200
Ingo Molnar <mingo@xxxxxxxxxx> wrote:

>
> * Masami Hiramatsu <mhiramat@xxxxxxxxxx> wrote:
>
> > --- a/tools/perf/util/probe-event.h
> > +++ b/tools/perf/util/probe-event.h
> > @@ -37,6 +37,7 @@ struct probe_trace_point {
> > struct probe_trace_arg_ref {
> > struct probe_trace_arg_ref *next; /* Next reference */
> > long offset; /* Offset value */
> > + bool user; /* User-memory access */
> > };
> >
> > /* kprobe-tracer and uprobe-tracer tracing argument */
> > @@ -82,6 +83,7 @@ struct perf_probe_arg {
> > char *var; /* Variable name */
> > char *type; /* Type name */
> > struct perf_probe_arg_field *field; /* Structure fields */
> > + bool user; /* User-memory */
>
> Why did the 'access' qualifier get dropped from the second comment?

Ah, it's my typo.

> Also, please name it and related parameters and local variables
> 'user_access' - in that case no comments are needed and it's all super
> clear. Only 'user' is ambiguous really.

Yes, that's a good idea! OK. I'll change it.

Thank you!

>
> Thanks,
>
> ngo


--
Masami Hiramatsu <mhiramat@xxxxxxxxxx>