From: Chris Metcalf <cmetcalf@tilera.com>
Date: Sun, 1 Apr 2012 18:01:34 +0000 (-0400)
Subject: mm: add new arch_make_huge_pte() method for tile support
X-Git-Tag: v3.5-rc1~76^2~8
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=d9ed9faac283a3be73f0e11a2ef49ee55aece4db;p=pandora-kernel.git

mm: add new arch_make_huge_pte() method for tile support

The tile support for multiple-size huge pages requires tagging
the hugetlb PTE with a "super" bit for PTEs that are multiples of
the basic size of a pagetable span.  To set that bit properly
we need to tweak the PTe in make_huge_pte() based on the vma.

This change provides the API for a subsequent tile-specific
change to use.

Reviewed-by: Hillf Danton <dhillf@gmail.com>
Signed-off-by: Chris Metcalf <cmetcalf@tilera.com>
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