[MIPS] Use reset_page_mapcount to initialize empty_zero_page usage counter.
    
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
diff --git a/arch/mips/mm/init.c b/arch/mips/mm/init.c
index f75ab74..3a49036 100644
--- a/arch/mips/mm/init.c
+++ b/arch/mips/mm/init.c
@@ -68,7 +68,7 @@
 	page = virt_to_page(empty_zero_page);
 	while (page < virt_to_page(empty_zero_page + (PAGE_SIZE << order))) {
 		set_bit(PG_reserved, &page->flags);
-		set_page_count(page, 0);
+		reset_page_mapcount(page);
 		page++;
 	}