On Jul 31, 2008, at 1:48 PM, Kumar Gala wrote:
Implement _PAGE_SPECIAL and pte_special() for 32-bit powerpc. This
bit will
be used by the fast get_user_pages() to differenciate PTEs that
correspond
to a valid struct page from special mappings that don't such as IO
mappings
obtained via io_remap_pfn_ranges().
We currently only implement this on sub-arch that support SMP or
will so
in the future (6xx, 44x, FSL-BookE) and not (8xx, 40x).
Signed-off-by: Kumar Gala <[EMAIL PROTECTED]>
---
Nick, do you forsee using _PAGE_SPECIAL for other applications that
would
be of interested to non-SMP hw?
We can look at adding it into 8xx and 40x, but was being lazy as I
assume
there is no point.
- k
Josh,
Can you test this on 44x for me.
thanks
- k
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