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From: Tabi Timur-B04825 <B04825@freescale.com>
To: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Subject: Re: [PATCH] powerpc/mm: add ZONE_NORMAL zone for 64 bit kernel
Date: Tue, 24 Jul 2012 04:04:04 +0000
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Cc: Wood Scott-B07421 <B07421@freescale.com>,
 Hu Mingkai-B21284 <B21284@freescale.com>,
 "linuxppc-dev@lists.ozlabs.org" <linuxppc-dev@lists.ozlabs.org>,
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Benjamin Herrenschmidt wrote:
> Sure but I don't want to create the zones in the first place (and thus
> introduce the added pressure on the memory management) on machines that
> don't need it.

One thing that does confuse me -- by default, we don't create a=20
ZONE_NORMAL.  We only create a ZONE_DMA.  Why is that?  Shouldn't it be=20
the other way around?

--=20
Timur Tabi
Linux kernel developer at Freescale=