Re: [PATCH 03/19] x86/efi: get rid of superfluous __GFP_REPEAT

From: Matt Fleming
Date: Tue Apr 12 2016 - 11:54:16 EST


On Mon, 11 Apr, at 01:07:56PM, Michal Hocko wrote:
> From: Michal Hocko <mhocko@xxxxxxxx>
>
> __GFP_REPEAT has a rather weak semantic but since it has been introduced
> around 2.6.12 it has been ignored for low order allocations.
>
> efi_alloc_page_tables uses __GFP_REPEAT but it allocates an order-0
> page. This means that this flag has never been actually useful here
> because it has always been used only for PAGE_ALLOC_COSTLY requests.
>
> Cc: Matt Fleming <matt@xxxxxxxxxxxxxxxxxxx>
> Cc: linux-arch@xxxxxxxxxxxxxxx
> Signed-off-by: Michal Hocko <mhocko@xxxxxxxx>
> ---
> arch/x86/platform/efi/efi_64.c | 2 +-
> 1 file changed, 1 insertion(+), 1 deletion(-)

Looks fine. I suspect I copied it from other pgtable creation code,

Reviewed-by: Matt Fleming <matt@xxxxxxxxxxxxxxxxxxx>