linux-kernel - Re: [PATCH 20/40] autonuma: alloc/free/init mm

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Message-ID: <20120712181738.GA1349@cmpxchg.org>
Date:	Thu, 12 Jul 2012 20:17:38 +0200
From:	Johannes Weiner <hannes@...xchg.org>
To:	Andrea Arcangeli <aarcange@...hat.com>
Cc:	Konrad Rzeszutek Wilk <konrad@...nok.org>,
	linux-kernel@...r.kernel.org, linux-mm@...ck.org,
	Hillf Danton <dhillf@...il.com>, Dan Smith <danms@...ibm.com>,
	Peter Zijlstra <a.p.zijlstra@...llo.nl>,
	Linus Torvalds <torvalds@...ux-foundation.org>,
	Andrew Morton <akpm@...ux-foundation.org>,
	Thomas Gleixner <tglx@...utronix.de>,
	Ingo Molnar <mingo@...e.hu>, Paul Turner <pjt@...gle.com>,
	Suresh Siddha <suresh.b.siddha@...el.com>,
	Mike Galbraith <efault@....de>,
	"Paul E. McKenney" <paulmck@...ux.vnet.ibm.com>,
	Lai Jiangshan <laijs@...fujitsu.com>,
	Bharata B Rao <bharata.rao@...il.com>,
	Lee Schermerhorn <Lee.Schermerhorn@...com>,
	Rik van Riel <riel@...hat.com>,
	Srivatsa Vaddagiri <vatsa@...ux.vnet.ibm.com>,
	Christoph Lameter <cl@...ux.com>,
	Alex Shi <alex.shi@...el.com>,
	Mauricio Faria de Oliveira <mauricfo@...ux.vnet.ibm.com>,
	Konrad Rzeszutek Wilk <konrad.wilk@...cle.com>,
	Don Morris <don.morris@...com>,
	Benjamin Herrenschmidt <benh@...nel.crashing.org>
Subject: Re: [PATCH 20/40] autonuma: alloc/free/init mm_autonuma

On Thu, Jul 12, 2012 at 08:08:28PM +0200, Andrea Arcangeli wrote:
> On Sat, Jun 30, 2012 at 01:12:18AM -0400, Konrad Rzeszutek Wilk wrote:
> > On Thu, Jun 28, 2012 at 02:56:00PM +0200, Andrea Arcangeli wrote:
> > > This is where the mm_autonuma structure is being handled. Just like
> > > sched_autonuma, this is only allocated at runtime if the hardware the
> > > kernel is running on has been detected as NUMA. On not NUMA hardware
> > 
> > I think the correct wording is "non-NUMA", not "not NUMA".
> 
> That sounds far too easy to me, but I've no idea what's the right is here.

UMA?

Single-node hardware?
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