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m68k: mm: Convert pointer table macros to use ptdescs

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Motorola uses its pointer tables for page tables, so its macros should be
using struct ptdesc, not struct page. This removes a user of page->lru.

Signed-off-by: "Vishal Moola (Oracle)" <vishal.moola@gmail.com>
Reviewed-by: Geert Uytterhoeven <geert@linux-m68k.org>
Link: https://lore.kernel.org/20250611001255.527952-5-vishal.moola@gmail.com
Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
This commit is contained in:
Vishal Moola (Oracle) 2025-06-10 17:12:55 -07:00 • committed by Geert Uytterhoeven
parent 66aebe56de
commit 8135422ae0
1 changed files with 2 additions and 3 deletions
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5
arch/m68k/mm/motorola.c
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@ -92,7 +92,7 @@ void mmu_page_dtor(void *page)
}
/* ++andreas: {get,free}_pointer_table rewritten to use unused fields from
struct page instead of separately kmalloced struct. Stolen from
struct ptdesc instead of separately kmalloced struct. Stolen from
arch/sparc/mm/srmmu.c ... */
typedef struct list_head ptable_desc;
@ -103,8 +103,7 @@ static struct list_head ptable_list[3] = {
LIST_HEAD_INIT(ptable_list[2]),
};
#define PD_PTABLE(page) ((ptable_desc *)&(virt_to_page((void *)(page))->lru))
#define PD_PAGE(ptable) (list_entry(ptable, struct page, lru))
#define PD_PTABLE(ptdesc) ((ptable_desc *)&(virt_to_ptdesc((void *)(ptdesc))->pt_list))
#define PD_PTDESC(ptable) (list_entry(ptable, struct ptdesc, pt_list))
#define PD_MARKBITS(dp) (*(unsigned int *)&PD_PTDESC(dp)->pt_index)