[ovs-dev] [patch v2 1/3] mm: remove GFP_THISNODE
David Rientjes
rientjes at google.com
Mon Mar 2 20:40:24 UTC 2015
On Mon, 2 Mar 2015, Vlastimil Babka wrote:
> > > > You are thinking about an opportunistic allocation attempt in SLAB?
> > > >
> > > > AFAICT SLAB allocations should trigger reclaim.
> > > >
> > >
> > > Well, let me quote your commit 952f3b51beb5:
> >
> > This was about global reclaim. Local reclaim is good and that can be
> > done via zone_reclaim.
>
> Right, so the patch is a functional change for zone_reclaim_mode == 1, where
> !__GFP_WAIT will prevent it.
>
My patch is not a functional change, get_page_from_freelist() handles
zone_reclaim_mode == 1 properly in the page allocator fastpath. This
patch only touches the slowpath.
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