+ m68k-remove-use-of-page-index.patch added to mm-new branch

+ m68k-remove-use-of-page-index.patch added to mm-new branch

[Andrew Morton]

The patch titled
     Subject: m68k: remove use of page->index
has been added to the -mm mm-new branch.  Its filename is
     m68k-remove-use-of-page-index.patch

This patch will shortly appear at
     https://git.kernel.org/pub/scm/linux/kernel/git/akpm/25-new.git/tree/patches/m68k-remove-use-of-page-index.patch

This patch will later appear in the mm-new branch at
    git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm

Note, mm-new is a provisional staging ground for work-in-progress
patches, and acceptance into mm-new is a notification for others take
notice and to finish up reviews.  Please do not hesitate to respond to
review feedback and post updated versions to replace or incrementally
fixup patches in mm-new.

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------------------------------------------------------
From: "Matthew Wilcox (Oracle)" <willy@infradead.org>
Subject: m68k: remove use of page->index
Date: Fri, 16 May 2025 16:13:29 +0100

Switch to using struct ptdesc to store the markbits which will allow us to
remove index from struct page.

Link: https://lkml.kernel.org/r/20250516151332.3705351-1-willy@infradead.org
Signed-off-by: Matthew Wilcox (Oracle) <willy@infradead.org>
Cc: Geert Uytterhoeven <geert@linux-m68k.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
---

 arch/m68k/mm/motorola.c |    3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

--- a/arch/m68k/mm/motorola.c~m68k-remove-use-of-page-index
+++ a/arch/m68k/mm/motorola.c
@@ -105,7 +105,8 @@ static struct list_head ptable_list[3] =
 
 #define PD_PTABLE(page) ((ptable_desc *)&(virt_to_page((void *)(page))->lru))
 #define PD_PAGE(ptable) (list_entry(ptable, struct page, lru))
-#define PD_MARKBITS(dp) (*(unsigned int *)&PD_PAGE(dp)->index)
+#define PD_PTDESC(ptable) (list_entry(ptable, struct ptdesc, pt_list))
+#define PD_MARKBITS(dp) (*(unsigned int *)&PD_PTDESC(dp)->pt_index)
 
 static const int ptable_shift[3] = {
 	7+2, /* PGD */
_

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

highmem-add-folio_test_partial_kmap.patch
m68k-remove-use-of-page-index.patch
mm-rename-page-index-to-page-__folio_index.patch
ntfs3-use-folios-more-in-ntfs_compress_write.patch
iov-remove-copy_page_from_iter_atomic.patch