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Date: Mon, 28 Jan 2013 17:04:25 +0100
From: Oleg Nesterov <oleg@redhat.com>
To: Srikar Dronamraju <srikar@linux.vnet.ibm.com>
Cc: Steven Rostedt <rostedt@goodmis.org>, Ingo Molnar <mingo@kernel.org>,
        Ingo Molnar <mingo@elte.hu>, Anton Arapov <anton@redhat.com>,
        Christoph Hellwig <hch@infradead.org>, Josh Stone <jistone@redhat.com>,
        linux-kernel@vger.kernel.org,
        Masami Hiramatsu <masami.hiramatsu.pt@hitachi.com>,
        Suzuki Poulose <suzuki@in.ibm.com>,
        Ananth N Mavinakayanahalli <ananth@in.ibm.com>
Subject: Re: [GIT PULL] uprobes: pre-filtering
Message-ID: <20130128160425.GA16586@redhat.com>
References: <20130113185916.GA25831@redhat.com> <20130124121720.GA3104@gmail.com> <20130124154018.GA8580@redhat.com> <20130124154159.GB32071@gmail.com> <20130124170612.GA14823@redhat.com> <20130125064629.GD23723@linux.vnet.ibm.com> <20130125075437.GB21036@gmail.com> <20130125161728.GA11630@redhat.com> <20130128121943.GD29865@linux.vnet.ibm.com>
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On 01/28, Srikar Dronamraju wrote:
>
> * Oleg Nesterov <oleg@redhat.com> [2013-01-25 17:17:28]:
>
> > This is what I am going to (try to) do, but I am not sure if this makes
> > sense...
> >
> > For the start, can't we teach 'uprobe_events' file to accept, say,
> >
> > 	'p file:0x1234 pid=1 other-opts'
>
>
> I think this would be a very good start

Good.

So will you agree with 3/4 and 3/4 ?

> The only downside, I see is we would have add and remove to change the
> filter. Something like perf record will not be able to dynamically
> change the filter parameter.

Yes, this is only the first step.

Oleg.