diff --git a/fs/btrfs/transaction.c b/fs/btrfs/transaction.c
index 7bb58c3ddcd1aac65bc8fb8d8f5f448457a577be..dbbd4641753476aa1d29afaab1b81a343325ddd4 100644
--- a/fs/btrfs/transaction.c
+++ b/fs/btrfs/transaction.c
@@ -1432,6 +1432,23 @@ static int qgroup_account_snapshot(struct btrfs_trans_handle *trans,
 	 */
 	record_root_in_trans(trans, src, 1);
 
+	/*
+	 * btrfs_qgroup_inherit relies on a consistent view of the usage for the
+	 * src root, so we must run the delayed refs here.
+	 *
+	 * However this isn't particularly fool proof, because there's no
+	 * synchronization keeping us from changing the tree after this point
+	 * before we do the qgroup_inherit, or even from making changes while
+	 * we're doing the qgroup_inherit.  But that's a problem for the future,
+	 * for now flush the delayed refs to narrow the race window where the
+	 * qgroup counters could end up wrong.
+	 */
+	ret = btrfs_run_delayed_refs(trans, (unsigned long)-1);
+	if (ret) {
+		btrfs_abort_transaction(trans, ret);
+		goto out;
+	}
+
 	/*
 	 * We are going to commit transaction, see btrfs_commit_transaction()
 	 * comment for reason locking tree_log_mutex
@@ -1685,12 +1702,6 @@ static noinline int create_pending_snapshot(struct btrfs_trans_handle *trans,
 		goto fail;
 	}
 
-	ret = btrfs_run_delayed_refs(trans, (unsigned long)-1);
-	if (ret) {
-		btrfs_abort_transaction(trans, ret);
-		goto fail;
-	}
-
 	/*
 	 * Do special qgroup accounting for snapshot, as we do some qgroup
 	 * snapshot hack to do fast snapshot.