From: Johannes Weiner <hannes@cmpxchg.org>
Date: Thu, 13 Jan 2011 23:47:04 +0000 (-0800)
Subject: thp: mprotect: transparent huge page support
X-Git-Tag: v2.6.38-rc1~124
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=cd7548ab360c462118568eebb8c6da3bc303b02e;p=pandora-kernel.git

thp: mprotect: transparent huge page support

Natively handle huge pmds when changing page tables on behalf of
mprotect().

I left out update_mmu_cache() because we do not need it on x86 anyway but
more importantly the interface works on ptes, not pmds.

Signed-off-by: Johannes Weiner <hannes@cmpxchg.org>
Signed-off-by: Andrea Arcangeli <aarcange@redhat.com>
Reviewed-by: Rik van Riel <riel@redhat.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---

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