Re: [PATCH] mm/hugetlb: remove duplicate codes of setting compound_nr

[Xu, Yanfei]

Sorry. Please ignore this patch, it's incorrect.

Thanks,
Yanfei

On 2/3/21 12:40 PM, yanfei.xu@xxxxxxxxxxxxx wrote:
> From: Yanfei Xu <yanfei.xu@xxxxxxxxxxxxx>
>
> set_compound_order() set both of page's compound_order and
> compound_nr. It's no need to assign to compound_nr again, so
> remove it.
>
> Signed-off-by: Yanfei Xu <yanfei.xu@xxxxxxxxxxxxx>
> ---
>   mm/hugetlb.c | 1 -
>   1 file changed, 1 deletion(-)
>
> diff --git a/mm/hugetlb.c b/mm/hugetlb.c
> index a3e4fa2c5e94..ac249b1583de 100644
> --- a/mm/hugetlb.c
> +++ b/mm/hugetlb.c
> @@ -1228,7 +1228,6 @@ static void destroy_compound_gigantic_page(struct page *page,
>   	}
>   
>   	set_compound_order(page, 0);
> -	page[1].compound_nr = 0;
>   	__ClearPageHead(page);
>   }
>