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 f3a477fffd09b54fad0eb5b3381a58960d76e9d1..79b96064f8fc7a3c63b300d5c5516397e2454122 100644 (file)
--- 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));