diff options
Diffstat (limited to 'src/librbd/object_map/Types.h')
| -rw-r--r-- | src/librbd/object_map/Types.h | 15 |
1 files changed, 11 insertions, 4 deletions
diff --git a/src/librbd/object_map/Types.h b/src/librbd/object_map/Types.h index 0ce91bd96..576ea0e4b 100644 --- a/src/librbd/object_map/Types.h +++ b/src/librbd/object_map/Types.h @@ -8,10 +8,17 @@ namespace librbd { namespace object_map { enum DiffState { - DIFF_STATE_HOLE = 0, /* unchanged hole */ - DIFF_STATE_DATA = 1, /* unchanged data */ - DIFF_STATE_HOLE_UPDATED = 2, /* new hole */ - DIFF_STATE_DATA_UPDATED = 3 /* new data */ + // diff-iterate: hole with or without data captured in intermediate snapshot + // deep-copy: hole without data captured in intermediate snapshot + DIFF_STATE_HOLE = 0, + // diff-iterate, deep-copy: unchanged data + DIFF_STATE_DATA = 1, + // diff-iterate: new hole (data -> hole) + // deep-copy: new hole (data -> hole) or hole with data captured in + // intermediate snapshot + DIFF_STATE_HOLE_UPDATED = 2, + // diff-iterate, deep-copy: new data (hole -> data) or changed data + DIFF_STATE_DATA_UPDATED = 3 }; } // namespace object_map |