On Mon, Jun 12, 2023 at 02:04:07PM -0700, Vishal Moola (Oracle) wrote:
> The page table members are now split out into their own ptdesc struct.
> Remove them from struct page.
>
> Signed-off-by: Vishal Moola (Oracle) <vishal.moola@xxxxxxxxx>
Acked-by: Mike Rapoport (IBM) <rppt@xxxxxxxxxx>
> ---
> include/linux/mm_types.h | 14 --------------
> include/linux/pgtable.h | 3 ---
> 2 files changed, 17 deletions(-)
>
> diff --git a/include/linux/mm_types.h b/include/linux/mm_types.h
> index 6161fe1ae5b8..31ffa1be21d0 100644
> --- a/include/linux/mm_types.h
> +++ b/include/linux/mm_types.h
> @@ -141,20 +141,6 @@ struct page {
> struct { /* Tail pages of compound page */
> unsigned long compound_head; /* Bit zero is set */
> };
> - struct { /* Page table pages */
> - unsigned long _pt_pad_1; /* compound_head */
> - pgtable_t pmd_huge_pte; /* protected by page->ptl */
> - unsigned long _pt_s390_gaddr; /* mapping */
> - union {
> - struct mm_struct *pt_mm; /* x86 pgds only */
> - atomic_t pt_frag_refcount; /* powerpc */
> - };
> -#if ALLOC_SPLIT_PTLOCKS
> - spinlock_t *ptl;
> -#else
> - spinlock_t ptl;
> -#endif
> - };
> struct { /* ZONE_DEVICE pages */
> /** @pgmap: Points to the hosting device page map. */
> struct dev_pagemap *pgmap;
> diff --git a/include/linux/pgtable.h b/include/linux/pgtable.h
> index c405f74d3875..33cc19d752b3 100644
> --- a/include/linux/pgtable.h
> +++ b/include/linux/pgtable.h
> @@ -1019,10 +1019,7 @@ struct ptdesc {
> TABLE_MATCH(flags, __page_flags);
> TABLE_MATCH(compound_head, pt_list);
> TABLE_MATCH(compound_head, _pt_pad_1);
> -TABLE_MATCH(pmd_huge_pte, pmd_huge_pte);
> TABLE_MATCH(mapping, _pt_s390_gaddr);
> -TABLE_MATCH(pt_mm, pt_mm);
> -TABLE_MATCH(ptl, ptl);
> #undef TABLE_MATCH
> static_assert(sizeof(struct ptdesc) <= sizeof(struct page));
>
> --
> 2.40.1
>
>
--
Sincerely yours,
Mike.
