[PATCH 37/49] mm: numa: split_huge_page: Transfer last_nid on tail page

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From: Hillf Danton <dhillf@xxxxxxxxx>

Pass last_nid from head page to tail page.

Signed-off-by: Hillf Danton <dhillf@xxxxxxxxx>
Signed-off-by: Mel Gorman <mgorman@xxxxxxx>
---
 mm/huge_memory.c |    1 +
 1 file changed, 1 insertion(+)

diff --git a/mm/huge_memory.c b/mm/huge_memory.c
index 66e73cc..4c6efa8 100644
--- a/mm/huge_memory.c
+++ b/mm/huge_memory.c
@@ -1361,6 +1361,7 @@ 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));
-- 
1.7.9.2

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