Re: [PATCH 1/4] s390: get rid of superfluous __GFP_REPEAT

From: Michal Hocko
Date: Wed Mar 08 2017 - 09:12:16 EST


On Wed 08-03-17 09:23:40, Heiko Carstens wrote:
> On Tue, Mar 07, 2017 at 04:48:40PM +0100, 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.
> >
> > page_table_alloc then uses the flag for a single page allocation. This
> > means that this flag has never been actually useful here because it has
> > always been used only for PAGE_ALLOC_COSTLY requests.
> >
> > An earlier attempt to remove the flag 10d58bf297e2 ("s390: get rid of
> > superfluous __GFP_REPEAT") has missed this one but the situation is very
> > same here.
> >
> > Cc: Heiko Carstens <heiko.carstens@xxxxxxxxxx>
> > Signed-off-by: Michal Hocko <mhocko@xxxxxxxx>
> > ---
> > arch/s390/mm/pgalloc.c | 2 +-
> > 1 file changed, 1 insertion(+), 1 deletion(-)
>
> FWIW:
> Acked-by: Heiko Carstens <heiko.carstens@xxxxxxxxxx>

Thanks

> If you want, this can be routed via the s390 tree, whatever you prefer.

Yes, that would be great. I suspect the rest will take longer to get
merged or land to a conclusion.

--
Michal Hocko
SUSE Labs