| 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 */ |
| _ |
