Re: [PATCH v2 07/11] powerpc/mm: remove a couple of #ifdef CONFIG_PPC_64K_PAGES in mm/slice.c

Aneesh Kumar K.V
2019-04-26T06:46:02Z

Christophe Leroy <christophe.leroy@c-s.fr> writes:

> This patch replaces a couple of #ifdef CONFIG_PPC_64K_PAGES
> by IS_ENABLED(CONFIG_PPC_64K_PAGES) to improve code maintainability.
>

Reviewed-by: Aneesh Kumar K.V <aneesh.kumar@linux.ibm.com>

> Signed-off-by: Christophe Leroy <christophe.leroy@c-s.fr>
> ---
> arch/powerpc/mm/slice.c | 10 ++++------
> 1 file changed, 4 insertions(+), 6 deletions(-)
>
> diff --git a/arch/powerpc/mm/slice.c b/arch/powerpc/mm/slice.c
> index 840c4118a185..ace97d953040 100644
> --- a/arch/powerpc/mm/slice.c
> +++ b/arch/powerpc/mm/slice.c
> @@ -606,14 +606,13 @@ unsigned long slice_get_unmapped_area(unsigned long addr, unsigned long len,
> newaddr = slice_find_area(mm, len, &potential_mask,
> psize, topdown, high_limit);
>
> -#ifdef CONFIG_PPC_64K_PAGES
> - if (newaddr == -ENOMEM && psize == MMU_PAGE_64K) {
> + if (IS_ENABLED(CONFIG_PPC_64K_PAGES) && newaddr == -ENOMEM &&
> + psize == MMU_PAGE_64K) {
> /* retry the search with 4k-page slices included */
> slice_or_mask(&potential_mask, &potential_mask, compat_maskp);
> newaddr = slice_find_area(mm, len, &potential_mask,
> psize, topdown, high_limit);
> }
> -#endif
>
> if (newaddr == -ENOMEM)
> return -ENOMEM;
> @@ -784,9 +783,9 @@ int slice_is_hugepage_only_range(struct mm_struct *mm, unsigned long addr,
> VM_BUG_ON(radix_enabled());
>
> maskp = slice_mask_for_size(&mm->context, psize);
> -#ifdef CONFIG_PPC_64K_PAGES
> +
> /* We need to account for 4k slices too */
> - if (psize == MMU_PAGE_64K) {
> + if (IS_ENABLED(CONFIG_PPC_64K_PAGES) && psize == MMU_PAGE_64K) {
> const struct slice_mask *compat_maskp;
> struct slice_mask available;
>
> @@ -794,7 +793,6 @@ int slice_is_hugepage_only_range(struct mm_struct *mm, unsigned long addr,
> slice_or_mask(&available, maskp, compat_maskp);
> return !slice_check_range_fits(mm, &available, addr, len);
> }
> -#endif
>
> return !slice_check_range_fits(mm, maskp, addr, len);
> }
> --
> 2.13.3