Re: [PATCH] mm: page_alloc: use the correct type of list for free pages

From: David Hildenbrand
Date: Wed Jun 21 2023 - 07:17:04 EST


On 21.06.23 10:14, Baolin Wang wrote:
Commit bf75f200569d ("mm/page_alloc: add page->buddy_list and page->pcp_list")
introduces page->buddy_list and page->pcp_list as a union with page->lru, but
missed to change get_page_from_free_area() to use page->buddy_list to clarify
the correct type of list for a free page.

Signed-off-by: Baolin Wang <baolin.wang@xxxxxxxxxxxxxxxxx>
---
mm/page_alloc.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/mm/page_alloc.c b/mm/page_alloc.c
index 5c691426822a..c1839a53326c 100644
--- a/mm/page_alloc.c
+++ b/mm/page_alloc.c
@@ -727,7 +727,7 @@ static inline struct page *get_page_from_free_area(struct free_area *area,
int migratetype)
{
return list_first_entry_or_null(&area->free_list[migratetype],
- struct page, lru);
+ struct page, buddy_list);
}
/*

Reviewed-by: David Hildenbrand <david@xxxxxxxxxx>

--
Cheers,

David / dhildenb