From: Kirill A. Shutemov <kirill.shutemov@linux.intel.com>
Date: Wed, 12 Dec 2012 21:50:51 +0000 (-0800)
Subject: thp: copy_huge_pmd(): copy huge zero page
X-Git-Tag: omap-for-v3.8/fixes-for-merge-window-v4-signed~33^2~49
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=fc9fe822f7112db23e51e2be3b886f5d8f0afdb6;p=pandora-kernel.git

thp: copy_huge_pmd(): copy huge zero page

It's easy to copy huge zero page. Just set destination pmd to huge zero
page.

It's safe to copy huge zero page since we have none yet :-p

[rientjes@google.com: fix comment]
Signed-off-by: Kirill A. Shutemov <kirill.shutemov@linux.intel.com>
Cc: Andrea Arcangeli <aarcange@redhat.com>
Cc: Andi Kleen <ak@linux.intel.com>
Cc: "H. Peter Anvin" <hpa@linux.intel.com>
Cc: Mel Gorman <mel@csn.ul.ie>
Signed-off-by: David Rientjes <rientjes@google.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---

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