The quilt patch titled
Subject: mm/hugetlb: use folio->lru int demote_free_hugetlb_folios()
has been removed from the -mm tree. Its filename was
mm-hugetlb-use-folio-lru-int-demote_free_hugetlb_folios.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: David Hildenbrand <david@xxxxxxxxxx>
Subject: mm/hugetlb: use folio->lru int demote_free_hugetlb_folios()
Date: Mon, 13 Jan 2025 14:16:11 +0100
We are demoting hugetlb folios to smaller hugetlb folios; let's avoid
messing with pages where avoidable and handle it more similar to
__split_huge_page_tail().
Link: https://lkml.kernel.org/r/20250113131611.2554758-7-david@xxxxxxxxxx
Signed-off-by: David Hildenbrand <david@xxxxxxxxxx>
Reviewed-by: Sidhartha Kumar <sidhartha.kumar@xxxxxxxxxx>
Cc: Baolin Wang <baolin.wang@xxxxxxxxxxxxxxxxx>
Cc: Matthew Wilcox (Oracle) <willy@xxxxxxxxxxxxx>
Cc: Muchun Song <muchun.song@xxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
mm/hugetlb.c | 8 +++++---
1 file changed, 5 insertions(+), 3 deletions(-)
--- a/mm/hugetlb.c~mm-hugetlb-use-folio-lru-int-demote_free_hugetlb_folios
+++ a/mm/hugetlb.c
@@ -3826,13 +3826,15 @@ static long demote_free_hugetlb_folios(s
for (i = 0; i < pages_per_huge_page(src); i += pages_per_huge_page(dst)) {
struct page *page = folio_page(folio, i);
+ /* Careful: see __split_huge_page_tail() */
+ struct folio *new_folio = (struct folio *)page;
- page->mapping = NULL;
clear_compound_head(page);
prep_compound_page(page, dst->order);
- init_new_hugetlb_folio(dst, page_folio(page));
- list_add(&page->lru, &dst_list);
+ new_folio->mapping = NULL;
+ init_new_hugetlb_folio(dst, new_folio);
+ list_add(&new_folio->lru, &dst_list);
}
}
_
Patches currently in -mm which might be from david@xxxxxxxxxx are
