linux-kernel - Re: [PATCH] mm-slab: allocate kmem_cache with __GFP

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Message-ID: <alpine.DEB.2.00.1107202040240.2847@tiger>
Date:	Wed, 20 Jul 2011 20:41:12 +0300 (EEST)
From:	Pekka Enberg <penberg@...nel.org>
To:	Christoph Lameter <cl@...ux.com>
cc:	Eric Dumazet <eric.dumazet@...il.com>,
	Mel Gorman <mgorman@...e.de>,
	Konstantin Khlebnikov <khlebnikov@...nvz.org>,
	Andrew Morton <akpm@...ux-foundation.org>, linux-mm@...ck.org,
	linux-kernel@...r.kernel.org, Matt Mackall <mpm@...enic.com>
Subject: Re: [PATCH] mm-slab: allocate kmem_cache with __GFP_REPEAT

On Wed, 20 Jul 2011, Pekka Enberg wrote:
>> On Wed, 20 Jul 2011, Eric Dumazet wrote:
>>>> [PATCH v2] slab: shrinks sizeof(struct kmem_cache)
>>
>> On Wed, 20 Jul 2011, Christoph Lameter wrote:
>>> This will solve the issue for small nr_cpu_ids but those with 4k cpus will
>>> still have the issue.
>>>
>>> Acked-by: Christoph Lameter <cl@...ux.com>
>>
>> Applied, thanks! Do we still want the __GFP_REPEAT patch from Konstantin
>> though?

On Wed, 20 Jul 2011, Christoph Lameter wrote:
> Those with 4k cpus will be thankful I guess.

OTOH, I'm slightly worried that it might mask a real problem 
with GFP_KERNEL not being aggressive enough. Mel?

 			Pekka
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