From: David S. Miller <davem@davemloft.net>
Date: Wed, 13 Feb 2013 20:21:06 +0000 (-0800)
Subject: sparc64: Fix get_user_pages_fast() wrt. THP.
X-Git-Tag: v3.8~5^2~1
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=89a77915e0f56dc7b9f9082ba787895b6a83f809;p=pandora-kernel.git

sparc64: Fix get_user_pages_fast() wrt. THP.

Mostly mirrors the s390 logic, as unlike x86 we don't need the
SetPageReferenced() bits.

On sparc64 we also lack a user/privileged bit in the huge PMDs.

In order to make this work for THP and non-THP builds, some header
file adjustments were necessary.  Namely, provide the PMD_HUGE_* bit
defines and the pmd_large() inline unconditionally rather than
protected by TRANSPARENT_HUGEPAGE.

Reported-by: Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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