linux-kernel - Re: [PATCH v2 6/6] slub: only preallocate cpus_with

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Message-ID: <alpine.DEB.2.00.1111020351350.23788@router.home>
Date:	Wed, 2 Nov 2011 03:52:04 -0500 (CDT)
From:	Christoph Lameter <cl@...two.org>
To:	Gilad Ben-Yossef <gilad@...yossef.com>
cc:	linux-kernel@...r.kernel.org,
	Peter Zijlstra <a.p.zijlstra@...llo.nl>,
	Frederic Weisbecker <fweisbec@...il.com>,
	Russell King <linux@....linux.org.uk>, linux-mm@...ck.org,
	Pekka Enberg <penberg@...nel.org>,
	Matt Mackall <mpm@...enic.com>,
	Sasha Levin <levinsasha928@...il.com>
Subject: Re: [PATCH v2 6/6] slub: only preallocate cpus_with_slabs if
 offstack

On Fri, 28 Oct 2011, Gilad Ben-Yossef wrote:

> I think if it is up to me, I recommend going the simpler  route that
> does the allocation in flush_all using GFP_ATOMIC for
> CPUMASK_OFFSTACK=y and sends an IPI to all CPUs if it fails, because
> it is simpler code and in the end I believe it is also correct.

I support that. Pekka?

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