From: Zhang Yanfei <zhangyan...@cn.fujitsu.com>
Since we have an unlikely for the "current_order >= pageblock_order / 2"
test above, adding an unlikely for this "current_order >= pageblock_order"
test seems more appropriate.
Signed-off-by: Zhang Yanfei <zhangyan...@cn.fujitsu.com>
---
mm/page_alloc.c | 2 +-
1 files changed, 1 insertions(+), 1 deletions(-)
diff --git a/mm/page_alloc.c b/mm/page_alloc.c
index c3edb62..1b6d7de 100644
--- a/mm/page_alloc.c
+++ b/mm/page_alloc.c
@@ -1071,7 +1071,7 @@ __rmqueue_fallback(struct zone *zone, int order, int
start_migratetype)
rmv_page_order(page);
/* Take ownership for orders >= pageblock_order */
- if (current_order >= pageblock_order &&
+ if (unlikely(current_order >= pageblock_order) &&
!is_migrate_cma(migratetype))
change_pageblock_range(page, current_order,
start_migratetype);
--
1.7.1
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