diff --git a/mm/compaction.c b/mm/compaction.c index 021a2960ef9e18d061c972590f7651a35e7652ce..94bdbe1f7caf85ca6e48cccc57b30e9253501fc6 100644 --- a/mm/compaction.c +++ b/mm/compaction.c @@ -420,13 +420,6 @@ static int compact_finished(struct zone *zone, if (cc->free_pfn <= cc->migrate_pfn) return COMPACT_COMPLETE; - /* Compaction run is not finished if the watermark is not met */ - watermark = low_wmark_pages(zone); - watermark += (1 << cc->order); - - if (!zone_watermark_ok(zone, cc->order, watermark, 0, 0)) - return COMPACT_CONTINUE; - /* * order == -1 is expected when compacting via * /proc/sys/vm/compact_memory @@ -434,6 +427,13 @@ static int compact_finished(struct zone *zone, if (cc->order == -1) return COMPACT_CONTINUE; + /* Compaction run is not finished if the watermark is not met */ + watermark = low_wmark_pages(zone); + watermark += (1 << cc->order); + + if (!zone_watermark_ok(zone, cc->order, watermark, 0, 0)) + return COMPACT_CONTINUE; + /* Direct compactor: Is a suitable page free? */ for (order = cc->order; order < MAX_ORDER; order++) { /* Job done if page is free of the right migratetype */ @@ -460,6 +460,13 @@ unsigned long compaction_suitable(struct zone *zone, int order) int fragindex; unsigned long watermark; + /* + * order == -1 is expected when compacting via + * /proc/sys/vm/compact_memory + */ + if (order == -1) + return COMPACT_CONTINUE; + /* * Watermarks for order-0 must be met for compaction. Note the 2UL. * This is because during migration, copies of pages need to be @@ -469,13 +476,6 @@ unsigned long compaction_suitable(struct zone *zone, int order) if (!zone_watermark_ok(zone, 0, watermark, 0, 0)) return COMPACT_SKIPPED; - /* - * order == -1 is expected when compacting via - * /proc/sys/vm/compact_memory - */ - if (order == -1) - return COMPACT_CONTINUE; - /* * fragmentation index determines if allocation failures are due to * low memory or external fragmentation