linux-kernel - Re: [PATCH 13/40] autonuma: CPU follow memory algorithm

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Message-ID: <1340895238.28750.49.camel@twins>
Date:	Thu, 28 Jun 2012 16:53:58 +0200
From:	Peter Zijlstra <a.p.zijlstra@...llo.nl>
To:	Andrea Arcangeli <aarcange@...hat.com>
Cc:	linux-kernel@...r.kernel.org, linux-mm@...ck.org,
	Hillf Danton <dhillf@...il.com>, Dan Smith <danms@...ibm.com>,
	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>,
	Johannes Weiner <hannes@...xchg.org>,
	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 13/40] autonuma: CPU follow memory algorithm

On Thu, 2012-06-28 at 14:55 +0200, Andrea Arcangeli wrote:
> +#ifdef __ia64__
> +#error "NOTE: tlb_migrate_finish won't run here"
> +#endif 

https://lkml.org/lkml/2012/5/29/359

Its an optional thing, not running it isn't fatal at all.

Also, ia64 has CONFIG_NUMA so all this code had better run on it.

That said, I've also already told you to stop using such forceful
migration, that simply doesn't make any sense, numa balancing isn't that
critical.

Unless you're going to listen to feedback I give you, I'm going to
completely stop reading your patches, I don't give a rats arse you work
for the same company anymore.

You're impossible to work with.
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