mm: numa: split_huge_page: transfer the NUMA type from the pmd to the…

… pte When we split a transparent hugepage, transfer the NUMA type from the pmd to the pte if needed. Signed-off-by: Andrea Arcangeli <[email protected]> Signed-off-by: Mel Gorman <[email protected]> Reviewed-by: Rik van Riel <[email protected]>
cbmeeks · Dec 11, 2012 · 1ba6e0b · 1ba6e0b
1 parent 0b9d705
commit 1ba6e0b
Showing 1 changed file with 2 additions and 0 deletions.
diff --git a/mm/huge_memory.c b/mm/huge_memory.c
@@ -1364,6 +1364,8 @@ static int __split_huge_page_map(struct page *page,
 				BUG_ON(page_mapcount(page) != 1);
 			if (!pmd_young(*pmd))
 				entry = pte_mkold(entry);
+			if (pmd_numa(*pmd))
+				entry = pte_mknuma(entry);
 			pte = pte_offset_map(&_pmd, haddr);
 			BUG_ON(!pte_none(*pte));
 			set_pte_at(mm, haddr, pte, entry);