On 29.03.22 03:09, Wei Yang wrote: > wakeup_kswapd() only wake up kswapd when the zone is managed. > > For two callers of wakeup_kswapd(), they are node perspective. > > * wake_all_kswapds > * numamigrate_isolate_page > > If we picked up a !managed zone, this is not we expected. > > This patch makes sure we pick up a managed zone for wakeup_kswapd(). And > it also use managed_zone in migrate_balanced_pgdat() to get the proper > zone. > > Signed-off-by: Wei Yang <richard.weiyang@xxxxxxxxx> > Cc: Miaohe Lin <linmiaohe@xxxxxxxxxx> > Cc: David Hildenbrand <david@xxxxxxxxxx> > Cc: "Huang, Ying" <ying.huang@xxxxxxxxx> > Cc: Mel Gorman <mgorman@xxxxxxxxxxxxxxxxxxx> > Cc: Oscar Salvador <osalvador@xxxxxxx> > Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx> ^ I'm not so sure about that SOB, actually Andrew should add that. But maybe there is good reason for it that I'm not aware of. Reviewed-by: David Hildenbrand <david@xxxxxxxxxx> -- Thanks, David / dhildenb
