MAX_ORDER is not inclusive: the maximum allocation order buddy allocator
can deliver is MAX_ORDER-1.
Fix MAX_ORDER usage in page_reporting_register().
Signed-off-by: Kirill A. Shutemov <kirill.shutemov@xxxxxxxxxxxxxxx>
Cc: Alexander Duyck <alexander.h.duyck@xxxxxxxxxxxxxxx>
---
mm/page_reporting.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/mm/page_reporting.c b/mm/page_reporting.c
index c65813a9dc78..275b466de37b 100644
--- a/mm/page_reporting.c
+++ b/mm/page_reporting.c
@@ -370,7 +370,7 @@ int page_reporting_register(struct page_reporting_dev_info *prdev)
*/
if (page_reporting_order == -1) {
- if (prdev->order > 0 && prdev->order <= MAX_ORDER)
+ if (prdev->order > 0 && prdev->order < MAX_ORDER)
page_reporting_order = prdev->order;
else
page_reporting_order = pageblock_order;
--
2.39.2
