Re: [PATCH 3/3] tracing/ksym_tracer: support quick clear for ksym_trace_filter

K.Prasad
2009-07-22T05:08:48Z

On Wed, Jul 22, 2009 at 11:25:14AM +0800, Xiao Guangrong wrote:
> It's rather bored to clear symbol one by one in ksym_trace_filter
> file, so, this patch can let ksym_trace_filter file support quick
> clear, we can write "0" to this file, it can clear all symbols
>
> for example:
> # cat ksym_trace_filter
> ksym_filter_head:rw-
> global_trace:rw-
> # echo 0 > ksym_trace_filter
> # cat ksym_trace_filter
> #
>

It's nice to have this feature added and the other patches fix issues in
ksym tracer. Can you have this patch add the capability to clear all
breakpoints in one-shot through wild-cards?

Ingo wanted something like "echo "*:---" > ksym_trace_filter". The patch
I sent here: http://lkml.org/lkml/2009/6/20/73 implements the same. You
may want to implement something on those lines.

Thanks,
K.Prasad