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Diffstat (limited to 'mm')
-rw-r--r--mm/page_alloc.c15
1 files changed, 5 insertions, 10 deletions
diff --git a/mm/page_alloc.c b/mm/page_alloc.c
index 442f1298f9a7..cb17e8b800d6 100644
--- a/mm/page_alloc.c
+++ b/mm/page_alloc.c
@@ -1027,6 +1027,10 @@ static int try_to_steal_freepages(struct zone *zone, struct page *page,
{
int current_order = page_order(page);
+ /*
+ * When borrowing from MIGRATE_CMA, we need to release the excess
+ * buddy pages to CMA itself.
+ */
if (is_migrate_cma(fallback_type))
return fallback_type;
@@ -1091,17 +1095,8 @@ __rmqueue_fallback(struct zone *zone, int order, int start_migratetype)
list_del(&page->lru);
rmv_page_order(page);
- /*
- * Borrow the excess buddy pages as well, irrespective
- * of whether we stole freepages, or took ownership of
- * the pageblock or not.
- *
- * Exception: When borrowing from MIGRATE_CMA, release
- * the excess buddy pages to CMA itself.
- */
expand(zone, page, order, current_order, area,
- is_migrate_cma(migratetype)
- ? migratetype : start_migratetype);
+ new_type);
trace_mm_page_alloc_extfrag(page, order, current_order,
start_migratetype, migratetype, new_type);