[PATCH 14/49] mm: numa: split_huge_page: transfer the NUMA type from the pmd to the pte
From: Mel Gorman <mgorman@suse.de>
Date: 2012-12-07 10:24:27
Also in:
lkml
Subsystem:
memory management, memory management - thp (transparent huge page), the rest · Maintainers:
Andrew Morton, David Hildenbrand, Lorenzo Stoakes, Linus Torvalds
From: Andrea Arcangeli <redacted> When we split a transparent hugepage, transfer the NUMA type from the pmd to the pte if needed. Signed-off-by: Andrea Arcangeli <redacted> Signed-off-by: Mel Gorman <mgorman@suse.de> Reviewed-by: Rik van Riel <redacted> --- mm/huge_memory.c | 2 ++ 1 file changed, 2 insertions(+)
diff --git a/mm/huge_memory.c b/mm/huge_memory.c
index 40f17c3..3aaf242 100644
--- a/mm/huge_memory.c
+++ b/mm/huge_memory.c@@ -1363,6 +1363,8 @@ 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);
--
1.7.9.2
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