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4) An ordered zone list is probably the more natural mapping.

See my comments above about per zone/memblk.  And you reemphasize my point, how do we order the zone lists in such a way that a user of the API can easily know/find out what zone #5 is?

Could you explain how that problem is different from finding out
what memblk #5 is ... I don't see the difference?

Errm...  __memblk_to_node(5)

As opposed to creating __zone_to_node(5) ?
 

I"m not saying that we couldn't add a similar interface for zones... something along the lines of:
	__memblk_and_zone_to_flat_zone_number(5, DMA)
or some such.  It just isn't there now...

Surely this would dispose of the need for memblks? If not, then
I'd agree it's probably just adding more complication.

M.

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