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Date: Wed, 19 Aug 2009 22:41:48 +1000
From: Paul Mackerras <paulus@samba.org>
To: Ingo Molnar <mingo@elte.hu>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>,
       Arnaldo Carvalho de Melo <acme@redhat.com>,
       Frederic Weisbecker <fweisbec@gmail.com>,
       Mike Galbraith <efault@gmx.de>, linux-kernel@vger.kernel.org,
       stephane eranian <eranian@googlemail.com>
Subject: Re: [PATCH 4/4][RFC] perf_counter: Allow sharing of output channels
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Ingo Molnar writes:

> Time to add a new sys_perf_counter_chattr() syscall and deprecate 
> the ioctls?

Hmmm... if 2.6.31 goes out with the ioctls, I think we should leave
them in for a long time.  I've never seen what the problem with ioctl
is anyway.  At least, I don't see how a new multi-function syscall
would be any better.

Paul.