The quilt patch titled
Subject: mm/page_alloc: use get_pfnblock_migratetype to avoid extra page_to_pfn
has been removed from the -mm tree. Its filename was
mm-page_alloc-use-get_pfnblock_migratetype-to-avoid-extra-page_to_pfn.patch
This patch was dropped because it was merged into the mm-stable branch
of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm
------------------------------------------------------
From: Kemeng Shi <shikemeng@xxxxxxxxxxxxxxx>
Subject: mm/page_alloc: use get_pfnblock_migratetype to avoid extra page_to_pfn
Date: Fri, 11 Aug 2023 19:59:45 +0800
We have get_pageblock_migratetype and get_pfnblock_migratetype to get
migratetype of page. get_pfnblock_migratetype accepts both page and pfn
from caller while get_pageblock_migratetype only accept page and get pfn
with page_to_pfn from page.
In case we already record pfn of page, we can simply call
get_pfnblock_migratetype to avoid a page_to_pfn.
Link: https://lkml.kernel.org/r/20230811115945.3423894-3-shikemeng@xxxxxxxxxxxxxxx
Signed-off-by: Kemeng Shi <shikemeng@xxxxxxxxxxxxxxx>
Acked-by: Mel Gorman <mgorman@xxxxxxxxxxxxxxxxxxx>
Cc: Baolin Wang <baolin.wang@xxxxxxxxxxxxxxxxx>
Cc: David Hildenbrand <david@xxxxxxxxxx>
Cc: Matthew Wilcox (Oracle) <willy@xxxxxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
mm/page_alloc.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
--- a/mm/page_alloc.c~mm-page_alloc-use-get_pfnblock_migratetype-to-avoid-extra-page_to_pfn
+++ a/mm/page_alloc.c
@@ -813,7 +813,7 @@ static inline void __free_one_page(struc
* 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) ||
@@ -889,7 +889,7 @@ int split_free_page(struct page *free_pa
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);
_
Patches currently in -mm which might be from shikemeng@xxxxxxxxxxxxxxx are
