Messages in this thread |  | | Date | Fri, 14 Feb 2014 11:04:46 +0000 | From | Mel Gorman <> | Subject | Re: [PATCH V2 2/2] mm/vmscan: not check compaction_ready on promoted zones |
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On Fri, Feb 14, 2014 at 02:42:34PM +0800, Weijie Yang wrote: > We abort direct reclaim if find the zone is ready for compaction. > Sometimes the zone is just a promoted highmem zone to force scan > pinning highmem, which is not the intended zone the caller want to > alloc page from. In this situation, setting aborted_reclaim to > indicate the caller turn back to retry allocation is waste of time > and could cause a loop in __alloc_pages_slowpath(). > > This patch do not check compaction_ready() on promoted zones to avoid > the above situation, only set aborted_reclaim if the caller intended > zone is ready to compaction. > > Acked-by: Rik van Riel <riel@redhat.com> > Signed-off-by: Weijie Yang <weijie.yang@samsung.com>
Acked-by: Mel Gorman <mgorman@suse.de>
-- Mel Gorman SUSE Labs
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