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Date: Tue, 20 Oct 2009 08:54:26 +0200
From: Ingo Molnar <mingo@elte.hu>
To: Masami Hiramatsu <mhiramat@redhat.com>
Cc: Frederic Weisbecker <fweisbec@gmail.com>,
       Steven Rostedt <rostedt@goodmis.org>,
       lkml <linux-kernel@vger.kernel.org>,
       Thomas Gleixner <tglx@linutronix.de>,
       Arnaldo Carvalho de Melo <acme@redhat.com>,
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       systemtap <systemtap@sources.redhat.com>,
       DLE <dle-develop@lists.sourceforge.net>
Subject: Re: [PATCH -tip tracing/kprobes 0/9] tracing/kprobes, perf: perf
	probe and kprobe-tracer bugfixes
Message-ID: <20091020065426.GN8550@elte.hu>
References: <20091017000711.16556.69935.stgit@dhcp-100-2-132.bos.redhat.com> <20091017080203.GA4155@elte.hu> <20091017103427.GA31238@elte.hu> <4ADAAF50.9040604@redhat.com> <20091019075103.GF17960@elte.hu> <4ADCB655.2020101@redhat.com>
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* Masami Hiramatsu <mhiramat@redhat.com> wrote:

> How about the following syntax?
> <adding>
> perf probe schedule
> perf probe --add schedule
> 
> <deleting>
> perf probe --del schedule
> perf probe --del all	/* delete all probepoints */
> 
> So, this doesn't symmetric, but provides simple way to add a probe.

agreed. For deletion, eventually this:

  perf probe --del "*"

should also work - as should other regexp (or glob) matches on a range 
of existing probes.

plus there should be a perf probe call to output all current probes as 
perf probe commands - so that it can be saved (and restored).

	Ingo
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