Re: [PATCH 08/10] x86, xen, mm: fix mapping_pagetable_reserve logic

[H. Peter Anvin]

On 10/09/2012 08:22 PM, Stefano Stabellini wrote:
> 
> I can give some hints: find_early_table_space allocates more memory than
> needed for pagetable pages, the allocated range is
> pgt_buf_start-pgt_buf_top.
> 

This is why I keep telling you that we should *get rid of*
find_early_table_space and instead build the page tables incrementally.
 There simply is no sane way to make find_early_table_space or anything
else that requires pre-calculating the page table sizes to work and be
robust.

	-hpa

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