From: Hillf Danton <dhillf@gmail.com>
Date: Tue, 27 Nov 2012 14:40:32 +0000 (+0000)
Subject: mm: numa: split_huge_page: Transfer last_nid on tail page
X-Git-Url: http://git.lede-project.org./?a=commitdiff_plain;h=5aa80374a10567f8e25de0615d3d40f3aa3a4298;p=openwrt%2Fstaging%2Fblogic.git

mm: numa: split_huge_page: Transfer last_nid on tail page

Pass last_nid from head page to tail page.

Signed-off-by: Hillf Danton <dhillf@gmail.com>
Signed-off-by: Mel Gorman <mgorman@suse.de>
---

diff --git a/mm/huge_memory.c b/mm/huge_memory.c
index f3a477fffd09..79b96064f8fc 100644
--- a/mm/huge_memory.c
+++ b/mm/huge_memory.c
@@ -1362,6 +1362,7 @@ static void __split_huge_page_refcount(struct page *page)
 		page_tail->mapping = page->mapping;
 
 		page_tail->index = page->index + i;
+		page_xchg_last_nid(page_tail, page_last_nid(page));
 
 		BUG_ON(!PageAnon(page_tail));
 		BUG_ON(!PageUptodate(page_tail));