From: Huang Shijie <sjhuang@xxxxxxxxxxx> Subject: mm/page_alloc.c: change the order of MIGRATE_RECLAIMABLE/MIGRATE_MOVABLE in fallbacks In the enum migratetype definition, MIGRATE_MOVABLE is before MIGRATE_RECLAIMABLE. Change the order of them to match the enumeration's order. Link: http://lkml.kernel.org/r/20181121085821.3442-1-sjhuang@xxxxxxxxxxx Signed-off-by: Huang Shijie <sjhuang@xxxxxxxxxxx> Reviewed-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx> Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx> --- --- a/mm/page_alloc.c~mm-change-the-order-of-migrate_reclaimable-migrate_movable-in-fallbacks +++ a/mm/page_alloc.c @@ -1981,8 +1981,8 @@ struct page *__rmqueue_smallest(struct z */ static int fallbacks[MIGRATE_TYPES][4] = { [MIGRATE_UNMOVABLE] = { MIGRATE_RECLAIMABLE, MIGRATE_MOVABLE, MIGRATE_TYPES }, - [MIGRATE_RECLAIMABLE] = { MIGRATE_UNMOVABLE, MIGRATE_MOVABLE, MIGRATE_TYPES }, [MIGRATE_MOVABLE] = { MIGRATE_RECLAIMABLE, MIGRATE_UNMOVABLE, MIGRATE_TYPES }, + [MIGRATE_RECLAIMABLE] = { MIGRATE_UNMOVABLE, MIGRATE_MOVABLE, MIGRATE_TYPES }, #ifdef CONFIG_CMA [MIGRATE_CMA] = { MIGRATE_TYPES }, /* Never used */ #endif _
