On Mon, May 30, 2016 at 07:37:39PM +0200, Geert Uytterhoeven wrote:
> > diff --git a/mm/page_alloc.c b/mm/page_alloc.c
> > index dba8cfd0b2d6..f2c1e47adc11 100644
> > --- a/mm/page_alloc.c
> > +++ b/mm/page_alloc.c
> > @@ -3232,6 +3232,9 @@ __alloc_pages_slowpath(gfp_t gfp_mask, unsigned int
> > order,
> > * allocations are system rather than user orientated
> > */
> > ac->zonelist = node_zonelist(numa_node_id(), gfp_mask);
> > + ac->preferred_zoneref = first_zones_zonelist(ac->zonelist,
> > + ac->high_zoneidx, ac->nodemask);
> > + ac->classzone_idx =
> > zonelist_zone_idx(ac->preferred_zoneref);
> > page = get_page_from_freelist(gfp_mask, order,
> > ALLOC_NO_WATERMARKS, ac);
> > if (page)
>
> Thanks, but unfortunately it doesn't help.
>
Thanks. Please try the following instead
diff --git a/mm/page_alloc.c b/mm/page_alloc.c
index bb320cde4d6d..557549c81083 100644
--- a/mm/page_alloc.c
+++ b/mm/page_alloc.c
@@ -3024,6 +3024,7 @@ get_page_from_freelist(gfp_t gfp_mask, unsigned int
order, int alloc_flags,
apply_fair = false;
fair_skipped = false;
reset_alloc_batches(ac->preferred_zoneref->zone);
+ z = ac->preferred_zoneref;
goto zonelist_scan;
}
--
Mel Gorman
SUSE Labs
