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Date:	Sun, 02 Aug 2009 20:21:35 -0700 (PDT)
From:	David Miller <davem@...emloft.net>
To:	mingo@...e.hu
Cc:	a.p.zijlstra@...llo.nl, joerg.roedel@....com,
	fujita.tomonori@....ntt.co.jp, reif@...thlink.net,
	sparclinux@...r.kernel.org, linux-kernel@...r.kernel.org,
	x86@...nel.org, tony.luck@...el.com, akpm@...ux-foundation.org
Subject: Re: [PATCH v2 0/8] sparc: use asm-generic/dma-mapping-common.h and
 pci-dma-compat.h

From: Ingo Molnar <mingo@...e.hu>
Date: Sat, 18 Jul 2009 13:06:20 +0200

> I'm wondering why sparc32 frees from the middle of the kernel image. 
> The way architectures generally do it is to put freeable pages into 
> a separate section. That way it does not get mingled with the kernel 
> core image area (which stays nicely continuous).

It's conditionally free'able, we actually use the pages
if the system is SMP and has more than cpu 0 installed.
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