Sorry, I was only thinking about the type of the index initially, not 
the type of the data being passed into the macro.  Yes, the macro does 
take an address, so it should be more like addr_to_pfn_index or somesuch.  
I still think pte_index isn't clear, though.

It's not a pfn index though - pfns are physical, this is virtual still.

It's the index into the pte page ... vaddr_to_pte_page_index I guess,
but pte_index seems easier ;-)

akpm
pfn = pageframe number.

Right, yes ... but that's still really just a physical address (>> PAGE_SHIFT).
I was trying to emphasize phys vs virt. But I was being needlessly obtuse ;-) 

M.

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