linux-kernel - Re: [PATCH v3] mm: make expand_downwards symmetrical to expand

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Message-ID: <alpine.DEB.2.00.1104211517150.20201@chino.kir.corp.google.com>
Date:	Thu, 21 Apr 2011 15:19:01 -0700 (PDT)
From:	David Rientjes <rientjes@...gle.com>
To:	James Bottomley <James.Bottomley@...senpartnership.com>
cc:	Christoph Lameter <cl@...ux.com>,
	Pekka Enberg <penberg@...nel.org>,
	Matthew Wilcox <matthew@....cx>,
	KOSAKI Motohiro <kosaki.motohiro@...fujitsu.com>,
	Michal Hocko <mhocko@...e.cz>,
	Andrew Morton <akpm@...ux-foundation.org>,
	Hugh Dickins <hughd@...gle.com>, linux-mm@...ck.org,
	LKML <linux-kernel@...r.kernel.org>,
	linux-parisc@...r.kernel.org, Ingo Molnar <mingo@...e.hu>,
	x86 maintainers <x86@...nel.org>, linux-arch@...r.kernel.org,
	Mel Gorman <mel@....ul.ie>
Subject: Re: [PATCH v3] mm: make expand_downwards symmetrical to
 expand_upwards

On Thu, 21 Apr 2011, James Bottomley wrote:

> diff --git a/mm/slub.c b/mm/slub.c
> index 94d2a33..243bd9c 100644
> --- a/mm/slub.c
> +++ b/mm/slub.c
> @@ -235,7 +235,11 @@ int slab_is_available(void)
>  
>  static inline struct kmem_cache_node *get_node(struct kmem_cache *s, int node)
>  {
> +#ifdef CONFIG_NUMA
>  	return s->node[node];
> +#else
> +	return s->node[0];
> +#endif
>  }
>  
>  /* Verify that a pointer has an address that is valid within a slab page */

Looks like parisc may have been just fine before 7340cc84141d (slub: 
reduce differences between SMP and NUMA), which was merged into 2.6.37?
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