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* [merged mm-stable] mm-page_alloc-use-get_pfnblock_migratetype-to-avoid-extra-page_to_pfn.patch removed from -mm tree
@ 2023-08-21 20:41 Andrew Morton
  0 siblings, 0 replies; only message in thread
From: Andrew Morton @ 2023-08-21 20:41 UTC (permalink / raw)
  To: mm-commits, willy, mgorman, david, baolin.wang, shikemeng, akpm


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@huaweicloud.com>
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@huaweicloud.com
Signed-off-by: Kemeng Shi <shikemeng@huaweicloud.com>
Acked-by: Mel Gorman <mgorman@techsingularity.net>
Cc: Baolin Wang <baolin.wang@linux.alibaba.com>
Cc: David Hildenbrand <david@redhat.com>
Cc: Matthew Wilcox (Oracle) <willy@infradead.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
---

 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@huaweicloud.com are



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2023-08-21 20:41 [merged mm-stable] mm-page_alloc-use-get_pfnblock_migratetype-to-avoid-extra-page_to_pfn.patch removed from -mm tree Andrew Morton

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