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

Johannes Weiner
2008-05-06T08:57:12Z

Hi,

Andi Kleen <andi@firstfloor.org> 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