"Martin J. Bligh" <Martin.Bligh@us.ibm.com> writes:
>
> Note that there are two possible ways to define a pfn, in my mind.
> One would be page_phys_addr >> PAGE_SHIFT. The other would be the
> offset of the struct page for that page within the mythical mem_map
> array. I prefer the former, though it probably contradicts everyone
> else ;-) It's useful to have some way to pass around a 36 bit address
> inside a 32 bit field.
A page frame number (pfn) is definitely the former
(page_phys_addr >> PAGE_SHIFT).
Eric
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This archive was generated by hypermail 2b29 : Tue Apr 23 2002 - 22:00:25 EST