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

[Johannes Weiner]

Hi,

Andi Kleen <andi@xxxxxxxxxxxxxx> writes:

>> (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.

I meant it is not unique to the bootmem allocator because two bitmaps
might partially represent the same page range.

	Hannes
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