> I was wondering yesterday if it would be feasible to enforce
quoted text
> contiguousness for nodes.

And lose the memory? That would make people not happy.

  So that arch-code does not create one pgdat
quoted text
> for each node but one for each contiguous block.  I have not yet looked
> deeper into it, but I suspect that other mm code has similar problems
> with nodes spanning other nodes.

I wouldn't think so. At least sparse memory with large holes is not that
uncommon in the non x86 world.

-Andi

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