Re: [PATCH] x86: fix PAE pmd_bad bootup warning

[Hans Rosenfeld]

On Thu, May 08, 2008 at 09:33:52AM -0700, Nishanth Aravamudan wrote:
> So this seems to lend credence to Dave's hypothesis. Without, as you
> were trying before, teaching pagemap all about hugepages, what are our
> options?
> 
> Can we just skip over the current iteration of the PMD loop (would we
> need something similar for the PTE loop for power?) if pmd_huge(pmd)?

Allowing huge pages in the page walker would affect both walk_pmd_range
and walk_pud_range. Then either the users of the page walker need to
know how to handle huge pages themselves (in the pmd_entry and pud_entry
callback functions), or the page walker treats huge pages as any other
pages (calling the pte_entry callback function).


-- 
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