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

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Date:	Fri, 25 Jan 2013 20:23:53 +0900
From:	Masami Hiramatsu <masami.hiramatsu.pt@...achi.com>
To:	Srikar Dronamraju <srikar@...ux.vnet.ibm.com>
Cc:	Oleg Nesterov <oleg@...hat.com>, 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,
	Steven Rostedt <rostedt@...dmis.org>,
	Suzuki Poulose <suzuki@...ibm.com>,
	Ananth N Mavinakayanahalli <ananth@...ibm.com>,
	"yrl.pp-manager.tt@...achi.com" <yrl.pp-manager.tt@...achi.com>
Subject: Re: Re: [GIT PULL] uprobes: pre-filtering

(2013/01/25 15:46), Srikar Dronamraju wrote:
> The other alternative is to extend the current abi and pass the
> prefilter option. Should we extend the abi for userspace tracing is
> obviously debatable.

Hmm, afaik, ftrace has set_ftrace_pid and perf record
also has --pid option. I think you can hook those
to set pre-filter option at first. Of course, since
those are universal options, we may need other per-event
pid filter.

Thank you,

-- 
Masami HIRAMATSU
IT Management Research Dept. Linux Technology Center
Hitachi, Ltd., Yokohama Research Laboratory
E-mail: masami.hiramatsu.pt@...achi.com


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