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-rw-r--r--mm/page_alloc.c18
1 files changed, 9 insertions, 9 deletions
diff --git a/mm/page_alloc.c b/mm/page_alloc.c
index 370b64d03e3f..7ca668e946e5 100644
--- a/mm/page_alloc.c
+++ b/mm/page_alloc.c
@@ -2350,16 +2350,16 @@ static int rmqueue_bulk(struct zone *zone, unsigned int order,
continue;
/*
- * Split buddy pages returned by expand() are received here
- * in physical page order. The page is added to the callers and
- * list and the list head then moves forward. From the callers
- * perspective, the linked list is ordered by page number in
- * some conditions. This is useful for IO devices that can
- * merge IO requests if the physical pages are ordered
- * properly.
+ * Split buddy pages returned by expand() are received here in
+ * physical page order. The page is added to the tail of
+ * caller's list. From the callers perspective, the linked list
+ * is ordered by page number under some conditions. This is
+ * useful for IO devices that can forward direction from the
+ * head, thus also in the physical page order. This is useful
+ * for IO devices that can merge IO requests if the physical
+ * pages are ordered properly.
*/
- list_add(&page->lru, list);
- list = &page->lru;
+ list_add_tail(&page->lru, list);
alloced++;
if (is_migrate_cma(get_pcppage_migratetype(page)))
__mod_zone_page_state(zone, NR_FREE_CMA_PAGES,