[to-be-updated] buffer-replace-page_buffer-with-page_private-and-delete-it.patch removed from -mm tree

[to-be-updated] buffer-replace-page_buffer-with-page_private-and-delete-it.patch removed from -mm tree

[Andrew Morton]

The quilt patch titled
     Subject: buffer: replace page_buffer() with page_private() and delete it
has been removed from the -mm tree.  Its filename was
     buffer-replace-page_buffer-with-page_private-and-delete-it.patch

This patch was dropped because an updated version will be issued

------------------------------------------------------
From: Zi Yan <ziy@nvidia.com>
Subject: buffer: replace page_buffer() with page_private() and delete it
Date: Sun, 13 Sep 2026 22:24:12 -0400

Only two users (in md-bitmap) use page_buffer() and both can be converted
to use page_private().  Convert both and remove page_buffer().

Assisted-by: LLM
Link: https://lore.kernel.org/20260913-remove-pg_private-v4-14-848550f7574e@nvidia.com
Signed-off-by: Zi Yan <ziy@nvidia.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Cc: Song Liu <song@kernel.org>
Cc: Yu Kuai <yukuai@fygo.io>
Cc: Jan Kara <jack@suse.cz>
Cc: "Matthew Wilcox (Oracle)" <willy@infradead.org>
Cc: Li Nan <magiclinan@didiglobal.com>
Cc: Xiao Ni <xiao@kernel.org>
---

 drivers/md/md-bitmap.c      |    7 +++----
 include/linux/buffer_head.h |    6 ------
 2 files changed, 3 insertions(+), 10 deletions(-)

--- a/drivers/md/md-bitmap.c~buffer-replace-page_buffer-with-page_private-and-delete-it
+++ a/drivers/md/md-bitmap.c
@@ -516,7 +516,7 @@ static void end_bitmap_write(struct bio
 
 static void write_file_page(struct bitmap *bitmap, struct page *page, int wait)
 {
-	struct buffer_head *bh = page_buffers(page);
+	struct buffer_head *bh = (struct buffer_head *)page_private(page);
 
 	while (bh && bh->b_blocknr) {
 		atomic_inc(&bitmap->pending_writes);
@@ -533,12 +533,11 @@ static void write_file_page(struct bitma
 
 static void free_buffers(struct page *page)
 {
-	struct buffer_head *bh;
+	struct buffer_head *bh = (struct buffer_head *)page_private(page);
 
-	if (!page_private(page))
+	if (!bh)
 		return;
 
-	bh = page_buffers(page);
 	while (bh) {
 		struct buffer_head *next = bh->b_this_page;
 		free_buffer_head(bh);
--- a/include/linux/buffer_head.h~buffer-replace-page_buffer-with-page_private-and-delete-it
+++ a/include/linux/buffer_head.h
@@ -175,12 +175,6 @@ static inline unsigned long bh_offset(co
 	return (unsigned long)(bh)->b_data & (page_size(bh->b_page) - 1);
 }
 
-/* If we *know* page->private refers to buffer_heads */
-#define page_buffers(page)					\
-	({							\
-		BUG_ON(!PagePrivate(page));			\
-		((struct buffer_head *)page_private(page));	\
-	})
 #define folio_buffers(folio)		folio_get_private(folio)
 
 void buffer_check_dirty_writeback(struct folio *folio,
_

Patches currently in -mm which might be from ziy@nvidia.com are

treewide-remove-pageprivate-and-pg_private-from-comments-and-docs.patch
mm-page-flags-remove-pg_private.patch
usb-gadgetfs-do-not-warn-about-excessively-large-memory-allocations.patch