diff options
| -rw-r--r-- | include/linux/compaction.h | 26 |
1 files changed, 16 insertions, 10 deletions
diff --git a/include/linux/compaction.h b/include/linux/compaction.h index 9b37f9d3f7a8..ff39fa0a1ede 100644 --- a/include/linux/compaction.h +++ b/include/linux/compaction.h @@ -4,6 +4,8 @@ /* Return values for compact_zone() and try_to_compact_pages() */ /* When adding new states, please adjust include/trace/events/compaction.h */ enum compact_result { + /* For more detailed tracepoint output - internal to compaction */ + COMPACT_NOT_SUITABLE_ZONE, /* * compaction didn't start as it was not possible or direct reclaim * was more suitable @@ -11,30 +13,34 @@ enum compact_result { COMPACT_SKIPPED, /* compaction didn't start as it was deferred due to past failures */ COMPACT_DEFERRED, + /* compaction not active last round */ COMPACT_INACTIVE = COMPACT_DEFERRED, + /* For more detailed tracepoint output - internal to compaction */ + COMPACT_NO_SUITABLE_PAGE, /* compaction should continue to another pageblock */ COMPACT_CONTINUE, + /* - * direct compaction partially compacted a zone and there are suitable - * pages + * The full zone was compacted scanned but wasn't successfull to compact + * suitable pages. */ - COMPACT_PARTIAL, + COMPACT_COMPLETE, /* * direct compaction has scanned part of the zone but wasn't successfull * to compact suitable pages. */ COMPACT_PARTIAL_SKIPPED, + + /* compaction terminated prematurely due to lock contentions */ + COMPACT_CONTENDED, + /* - * The full zone was compacted scanned but wasn't successfull to compact - * suitable pages. + * direct compaction partially compacted a zone and there might be + * suitable pages */ - COMPACT_COMPLETE, - /* For more detailed tracepoint output */ - COMPACT_NO_SUITABLE_PAGE, - COMPACT_NOT_SUITABLE_ZONE, - COMPACT_CONTENDED, + COMPACT_PARTIAL, }; /* Used to signal whether compaction detected need_sched() or lock contention */ |