Subject: Re: [RFC/RFT PATCH v3] sched: automated per tty task groups
From: Mike Galbraith <efault@gmx.de>
To: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Markus Trippelsdorf <markus@trippelsdorf.de>,
        Oleg Nesterov <oleg@redhat.com>,
        Peter Zijlstra <a.p.zijlstra@chello.nl>,
        Mathieu Desnoyers <mathieu.desnoyers@efficios.com>,
        Ingo Molnar <mingo@elte.hu>, LKML <linux-kernel@vger.kernel.org>
In-Reply-To: <AANLkTikjSCbcRnKOU=nd4os1sdW-GJkD6QVj=U5zPyu8@mail.gmail.com>
References: <20101021162924.GA3225@redhat.com>
	 <1288076838.11930.1.camel@marge.simson.net>
	 <1288078144.7478.9.camel@marge.simson.net>
	 <AANLkTimOJAv2uRfq4bW_QPngkGCmJDjNX5n_izpX=eB8@mail.gmail.com>
	 <1289489200.11397.21.camel@maggy.simson.net>
	 <20101111202703.GA16282@redhat.com>
	 <1289514000.21413.204.camel@maggy.simson.net>
	 <20101112181240.GB8659@redhat.com>
	 <1289648524.22764.149.camel@maggy.simson.net>
	 <1289755150.3228.44.camel@maggy.simson.net>
	 <20101114174921.GA1569@arch.trippelsdorf.de>
	 <1289758238.17491.12.camel@maggy.simson.net>
	 <AANLkTimy5DdF8qwGuk09iT3wHfXMjkiwRKxo-LuvEJzW@mail.gmail.com>
	 <AANLkTikjSCbcRnKOU=nd4os1sdW-GJkD6QVj=U5zPyu8@mail.gmail.com>
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Date: Sun, 14 Nov 2010 17:02:17 -0700
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On Sun, 2010-11-14 at 12:20 -0800, Linus Torvalds wrote:
> On Sun, Nov 14, 2010 at 11:28 AM, Linus Torvalds
> <torvalds@linux-foundation.org> wrote:
> >
> > This catless version looks very good to me
> 
> Oh, btw, maybe one comment: is CONFIG_SCHED_AUTOGROUP_DEBUG even worth
> having as a config option? The only thing it enables is the small
> /proc interface, and I don't see any downside to just always having
> that if you have AUTOGROUP enabled in the first place.

If the on/off is available, you can silently strand pinned tasks forever
in an autogroup.  So, I tied the on/off switch to the global move so the
user won't be surprised.

	-Mike

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