linux-kernel - Re: [PATCH 4/6] perf_counter: Add PERF_COUNTER_IOC_SET

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Message-ID: <20090907164852.GA6485@elte.hu>
Date:	Mon, 7 Sep 2009 18:48:52 +0200
From:	Ingo Molnar <mingo@...e.hu>
To:	Peter Zijlstra <peterz@...radead.org>
Cc:	Li Zefan <lizf@...fujitsu.com>,
	Steven Rostedt <rostedt@...dmis.org>,
	Frederic Weisbecker <fweisbec@...il.com>,
	Tom Zanussi <tzanussi@...il.com>,
	Jason Baron <jbaron@...hat.com>,
	LKML <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH 4/6] perf_counter: Add PERF_COUNTER_IOC_SET_FILTER ioctl


* Peter Zijlstra <peterz@...radead.org> wrote:

> On Mon, 2009-09-07 at 16:13 +0800, Li Zefan wrote:
> > Allow to set profile filter via ioctl.
> 
> Hrm,.. not at all sure about this.. what are the ABI implications?

I think the ABI should be fine if it's always a sub-set of C syntax. 
That would be C expressions initially. Hm?

	Ingo
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