1 files changed, 1 insertions, 0 deletions

diff --git a/fs/btrfs/disk-io.c b/fs/btrfs/disk-io.c
index c67c129fe99a..ca78bf2ed287 100644
--- a/fs/btrfs/disk-io.c
+++ b/fs/btrfs/disk-io.c
@@ -176,6 +176,7 @@ static struct btrfs_lockdep_keyset {
         { .id = BTRFS_TREE_RELOC_OBJECTID,      .name_stem = "treloc"   },
         { .id = BTRFS_DATA_RELOC_TREE_OBJECTID, .name_stem = "dreloc"   },
         { .id = BTRFS_UUID_TREE_OBJECTID,       .name_stem = "uuid"     },
+        { .id = BTRFS_FREE_SPACE_TREE_OBJECTID, .name_stem = "free-space" },
         { .id = 0,                              .name_stem = "tree"     },
 };