linux-kernel - Re: [GIT PULL] uprobes: pre-filtering

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Message-ID: <20130128160425.GA16586@redhat.com>
Date:	Mon, 28 Jan 2013 17:04:25 +0100
From:	Oleg Nesterov <oleg@...hat.com>
To:	Srikar Dronamraju <srikar@...ux.vnet.ibm.com>
Cc:	Steven Rostedt <rostedt@...dmis.org>,
	Ingo Molnar <mingo@...nel.org>, Ingo Molnar <mingo@...e.hu>,
	Anton Arapov <anton@...hat.com>,
	Christoph Hellwig <hch@...radead.org>,
	Josh Stone <jistone@...hat.com>, linux-kernel@...r.kernel.org,
	Masami Hiramatsu <masami.hiramatsu.pt@...achi.com>,
	Suzuki Poulose <suzuki@...ibm.com>,
	Ananth N Mavinakayanahalli <ananth@...ibm.com>
Subject: Re: [GIT PULL] uprobes: pre-filtering

On 01/28, Srikar Dronamraju wrote:
>
> * Oleg Nesterov <oleg@...hat.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.

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