diff options
Diffstat (limited to 'mm/compaction.c')
| -rw-r--r-- | mm/compaction.c | 15 |
1 files changed, 13 insertions, 2 deletions
diff --git a/mm/compaction.c b/mm/compaction.c index 8c0d9459b54a..a18201a8124e 100644 --- a/mm/compaction.c +++ b/mm/compaction.c @@ -1174,13 +1174,24 @@ static int __compact_finished(struct zone *zone, struct compact_control *cc, /* Direct compactor: Is a suitable page free? */ for (order = cc->order; order < MAX_ORDER; order++) { struct free_area *area = &zone->free_area[order]; + bool can_steal; /* Job done if page is free of the right migratetype */ if (!list_empty(&area->free_list[migratetype])) return COMPACT_PARTIAL; - /* Job done if allocation would set block type */ - if (order >= pageblock_order && area->nr_free) +#ifdef CONFIG_CMA + /* MIGRATE_MOVABLE can fallback on MIGRATE_CMA */ + if (migratetype == MIGRATE_MOVABLE && + !list_empty(&area->free_list[MIGRATE_CMA])) + return COMPACT_PARTIAL; +#endif + /* + * Job done if allocation would steal freepages from + * other migratetype buddy lists. + */ + if (find_suitable_fallback(area, order, migratetype, + true, &can_steal) != -1) return COMPACT_PARTIAL; } |