[PATCH 1/8] mm: page_alloc: use get_pfnblock_migratetype where pfn available

[Johannes Weiner]

Save a pfn_to_page() lookup when the pfn is right there already.

Signed-off-by: Johannes Weiner <hannes@xxxxxxxxxxx>
---
 mm/page_alloc.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/mm/page_alloc.c b/mm/page_alloc.c
index 977bb4d5e8e1..e430ac45df7c 100644
--- a/mm/page_alloc.c
+++ b/mm/page_alloc.c
@@ -824,7 +824,7 @@ static inline void __free_one_page(struct page *page,
 			 * pageblock isolation could cause incorrect freepage or CMA
 			 * accounting or HIGHATOMIC accounting.
 			 */
-			int buddy_mt = get_pageblock_migratetype(buddy);
+			int buddy_mt = get_pfnblock_migratetype(buddy, buddy_pfn);
 
 			if (migratetype != buddy_mt
 					&& (!migratetype_is_mergeable(migratetype) ||
@@ -900,7 +900,7 @@ int split_free_page(struct page *free_page,
 		goto out;
 	}
 
-	mt = get_pageblock_migratetype(free_page);
+	mt = get_pfnblock_migratetype(free_page, free_page_pfn);
 	if (likely(!is_migrate_isolate(mt)))
 		__mod_zone_freepage_state(zone, -(1UL << order), mt);
 
-- 
2.41.0