[PATCH] mm,vmstat: correct pagetypeinfo statistics when show

[Bruce ZHANG <bo.zhang@nxp.com>]

The "Free pages count per migrate type at order" are shown with the
order from 0 ~ (MAX_ORDER-1), while "Page block order" just print
pageblock_order. If the macro CONFIG_HUGETLB_PAGE is defined, the
pageblock_order may not be equal to (MAX_ORDER-1).

Signed-off-by: Zhang Bo <bo.zhang@nxp.com>
---
 mm/vmstat.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/mm/vmstat.c b/mm/vmstat.c
index 6389e87..b0089cf 100644
--- a/mm/vmstat.c
+++ b/mm/vmstat.c
@@ -1430,8 +1430,8 @@ static int pagetypeinfo_show(struct seq_file *m, void *arg)
 	if (!node_state(pgdat->node_id, N_MEMORY))
 		return 0;
 
-	seq_printf(m, "Page block order: %d\n", pageblock_order);
-	seq_printf(m, "Pages per block:  %lu\n", pageblock_nr_pages);
+	seq_printf(m, "Page block order: %d\n", MAX_ORDER - 1);
+	seq_printf(m, "Pages per block:  %lu\n", MAX_ORDER_NR_PAGES);
 	seq_putc(m, '\n');
 	pagetypeinfo_showfree(m, pgdat);
 	pagetypeinfo_showblockcount(m, pgdat);
-- 
1.9.1