[merged mm-stable] md-use-folio-apis-in-free_page.patch removed from -mm tree

[merged mm-stable] md-use-folio-apis-in-free_page.patch removed from -mm tree

[Andrew Morton]

The quilt patch titled
     Subject: md: use folio APIs in free_page()
has been removed from the -mm tree.  Its filename was
     md-use-folio-apis-in-free_page.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: "Matthew Wilcox (Oracle)" <willy@infradead.org>
Subject: md: use folio APIs in free_page()
Date: Sun, 20 Sep 2026 22:28:10 -0400

Convert the page to a folio.  This removes some of the last uses of a few
page APIs (detach_page_private(), page_buffers()).  Replaces two calls to
compound_head() with one.

Remove the early return in free_buffers() to avoid memory leak and
uninitialized file bitmap pages.[1][2]

[ziy@nvidia.com: drop early return]
Link: https://lore.kernel.org/20260920-remove-pg_private-v5-14-bb68b6a21869@nvidia.com
Link: https://sashiko.dev/#/patchset/20260913-remove-pg_private-v4-0-848550f7574e%40nvidia.com?part=2 [1]
Link: https://lore.kernel.org/all/aqgfA0QFi98gXYG2@casper.infradead.org/ [2]
Signed-off-by: Matthew Wilcox (Oracle) <willy@infradead.org>
Signed-off-by: Zi Yan <ziy@nvidia.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Reviewed-by: David Hildenbrand (Arm) <david@kernel.org>
---

 drivers/md/md-bitmap.c |   10 +++-------
 1 file changed, 3 insertions(+), 7 deletions(-)

--- a/drivers/md/md-bitmap.c~md-use-folio-apis-in-free_page
+++ a/drivers/md/md-bitmap.c
@@ -533,19 +533,15 @@ static void write_file_page(struct bitma
 
 static void free_buffers(struct page *page)
 {
-	struct buffer_head *bh;
+	struct folio *folio = page_folio(page);
+	struct buffer_head *bh = folio_detach_private(folio);
 
-	if (!PagePrivate(page))
-		return;
-
-	bh = page_buffers(page);
 	while (bh) {
 		struct buffer_head *next = bh->b_this_page;
 		free_buffer_head(bh);
 		bh = next;
 	}
-	detach_page_private(page);
-	put_page(page);
+	folio_put(folio);
 }
 
 /* read a page from a file.
_

Patches currently in -mm which might be from willy@infradead.org are