The quilt patch titled
Subject: mm/page_alloc: reword the comment of buddy_merge_likely()
has been removed from the -mm tree. Its filename was
mm-page_alloc-reword-the-comment-of-buddy_merge_likely.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: Wei Yang <richard.weiyang@xxxxxxxxx>
Subject: mm/page_alloc: reword the comment of buddy_merge_likely()
Date: Wed, 19 Jun 2024 01:06:12 +0000
For page with order O, we are checking its order (O + 1)'s buddy. If it
is free, we would like to put it to the tail and expect it would be merged
to a page with order (O + 2).
Reword the comment to reflect it.
Link: https://lkml.kernel.org/r/20240619010612.20740-4-richard.weiyang@xxxxxxxxx
Signed-off-by: Wei Yang <richard.weiyang@xxxxxxxxx>
Cc: Mike Rapoport (IBM) <rppt@xxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
mm/page_alloc.c | 6 +++---
1 file changed, 3 insertions(+), 3 deletions(-)
--- a/mm/page_alloc.c~mm-page_alloc-reword-the-comment-of-buddy_merge_likely
+++ a/mm/page_alloc.c
@@ -712,12 +712,12 @@ static inline struct page *get_page_from
}
/*
- * If this is not the largest possible page, check if the buddy
- * of the next-highest order is free. If it is, it's possible
+ * If this is less than the 2nd largest possible page, check if the buddy
+ * of the next-higher order is free. If it is, it's possible
* that pages are being freed that will coalesce soon. In case,
* that is happening, add the free page to the tail of the list
* so it's less likely to be used soon and more likely to be merged
- * as a higher order page
+ * as a 2-level higher order page
*/
static inline bool
buddy_merge_likely(unsigned long pfn, unsigned long buddy_pfn,
_
Patches currently in -mm which might be from richard.weiyang@xxxxxxxxx are
