linux-kernel - Re: [PATCH 1/4] s390: get rid of superfluous __GFP

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Date:   Thu, 9 Mar 2017 09:27:19 +0100
From:   Heiko Carstens <heiko.carstens@...ibm.com>
To:     Michal Hocko <mhocko@...nel.org>
Cc:     linux-mm@...ck.org, Vlastimil Babka <vbabka@...e.cz>,
        Johannes Weiner <hannes@...xchg.org>,
        Mel Gorman <mgorman@...e.de>,
        Andrew Morton <akpm@...ux-foundation.org>,
        LKML <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH 1/4] s390: get rid of superfluous __GFP_REPEAT

On Wed, Mar 08, 2017 at 03:11:10PM +0100, Michal Hocko wrote:
> 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@...e.com>
> > > 
> > > __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@...ibm.com>
> > > Signed-off-by: Michal Hocko <mhocko@...e.com>
> > > ---
> > >  arch/s390/mm/pgalloc.c | 2 +-
> > >  1 file changed, 1 insertion(+), 1 deletion(-)
> > 
> > FWIW:
> > Acked-by: Heiko Carstens <heiko.carstens@...ibm.com>
> 
> 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.

Ok, applied. Thanks! :)