1 files changed, 7 insertions, 1 deletions

diff --git a/fs/btrfs/qgroup.c b/fs/btrfs/qgroup.c
index 2f708f2c4e67..3e6ffbbd8b0a 100644
--- a/fs/btrfs/qgroup.c
+++ b/fs/btrfs/qgroup.c
@@ -3830,7 +3830,13 @@ int btrfs_qgroup_add_swapped_blocks(struct btrfs_trans_handle *trans,
                                                             subvol_slot);
         block->last_snapshot = last_snapshot;
         block->level = level;
-        if (bg->flags & BTRFS_BLOCK_GROUP_DATA)
+
+        /*
+         * If we have bg == NULL, we're called from btrfs_recover_relocation(),
+         * no one else can modify tree blocks thus we qgroup will not change
+         * no matter the value of trace_leaf.
+         */
+        if (bg && bg->flags & BTRFS_BLOCK_GROUP_DATA)
                 block->trace_leaf = true;
         else
                 block->trace_leaf = false;