Commit 8135422a authored by Vishal Moola (Oracle)'s avatar Vishal Moola (Oracle) Committed by Geert Uytterhoeven
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m68k: mm: Convert pointer table macros to use ptdescs 



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: default avatar"Vishal Moola (Oracle)" <vishal.moola@gmail.com>
Reviewed-by: default avatarGeert Uytterhoeven <geert@linux-m68k.org>
Link: https://lore.kernel.org/20250611001255.527952-5-vishal.moola@gmail.com


Signed-off-by: default avatarGeert Uytterhoeven <geert@linux-m68k.org>
parent 66aebe56

arch/m68k/mm/motorola.c

+2 −3
Original line number Diff line number Diff line
@@ -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)