Re: [PATCH 4/4] mm/hugetlb: use already exist interface huge_page_shift

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On Wed 22-05-13 17:29:30, Wanpeng Li wrote:
> Use already exist interface huge_page_shift instead of h->order + PAGE_SHIFT.

alloc_bootmem_huge_page in powerpc uses the same construct so maybe you
want to udpate that one as well.

> 
> Signed-off-by: Wanpeng Li <liwanp@xxxxxxxxxxxxxxxxxx>

Reviewed-by: Michal Hocko <mhocko@xxxxxxx>

> ---
>  mm/hugetlb.c | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
> 
> diff --git a/mm/hugetlb.c b/mm/hugetlb.c
> index f8feeec..b6ff0ee 100644
> --- a/mm/hugetlb.c
> +++ b/mm/hugetlb.c
> @@ -319,7 +319,7 @@ unsigned long vma_kernel_pagesize(struct vm_area_struct *vma)
>  
>  	hstate = hstate_vma(vma);
>  
> -	return 1UL << (hstate->order + PAGE_SHIFT);
> +	return 1UL << huge_page_shift(hstate);
>  }
>  EXPORT_SYMBOL_GPL(vma_kernel_pagesize);
>  
> -- 
> 1.8.1.2
> 
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-- 
Michal Hocko
SUSE Labs

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