linux-kernel - Re: [rfc][patch 0/3] bootmem2: a memory block-oriented boot time allocator

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Date:	Mon, 05 May 2008 20:58:37 +0200
From:	Andi Kleen <andi@...stfloor.org>
To:	Johannes Weiner <hannes@...urebad.de>
CC:	linux-kernel@...r.kernel.org, linux-mm@...ck.org,
	Ingo Molnar <mingo@...e.hu>,
	Yinghai Lu <yhlu.kernel@...il.com>,
	Andrew Morton <akpm@...ux-foundation.org>,
	Linus Torvalds <torvalds@...ux-foundation.org>,
	Yasunori Goto <y-goto@...fujitsu.com>
Subject: Re: [rfc][patch 0/3] bootmem2: a memory block-oriented boot time
 allocator

> (because a PFN is not unique anymore)

That doesn't make sense. If a PFN is not uniquely mapping to a single
memory page anymore the VM and lots of other code in the kernel will
just not work. And each memory page can be only in a single node.

-Andi
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