Subject: Re: [RFC][PATCH] Add prctl to set sibling thread names
From: john stultz <johnstul@us.ibm.com>
To: Andi Kleen <andi@firstfloor.org>
Cc: lkml <linux-kernel@vger.kernel.org>, Mike Fulton <fultonm@ca.ibm.com>,
       Sean Foley <Sean_Foley@ca.ibm.com>, Darren Hart <dvhltc@us.ibm.com>
In-Reply-To: <20091022002853.GP32470@one.firstfloor.org>
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	 <20091022002853.GP32470@one.firstfloor.org>
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Date: Wed, 21 Oct 2009 17:42:15 -0700
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On Thu, 2009-10-22 at 02:28 +0200, Andi Kleen wrote:
> On Wed, Oct 21, 2009 at 04:21:37PM -0700, john stultz wrote:
> > 
> > Taking a very raw attempt at this, I scratched out the following simple
> > implementation. I'd appreciate any review or suggestions for
> > improvements. I'm not at all certain the passing of the thread pid_t
> > through the unsigned long is valid, for instance, or if
> > same_thread_group() is the right check to make sure we only change
> > siblings and not tid from other processes. So any advice on better
> > approaches would be great.
> 
> First though that comes to mind is that this should not be in prctl()

So it deserves a new syscall? Any other thoughts?

thanks
-john

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