btrfs: handle record_root_in_trans failure in qgroup_account_snapshot

record_root_in_trans can fail currently, so handle this failure
properly.

Reviewed-by: Qu Wenruo <wqu@suse.com>
Signed-off-by: Josef Bacik <josef@toxicpanda.com>
Reviewed-by: David Sterba <dsterba@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>

diff --git a/fs/btrfs/transaction.c b/fs/btrfs/transaction.c
index deb18646a1f0cf9ec8afcc151871a64aeace8ffe..63625497c90e6a5229a19f2354913db487cc410e 100644 (file)
--- a/fs/btrfs/transaction.c
+++ b/fs/btrfs/transaction.c
@@ -1454,7 +1454,9 @@ static int qgroup_account_snapshot(struct btrfs_trans_handle *trans,
         * recorded root will never be updated again, causing an outdated root
         * item.
         */
-       record_root_in_trans(trans, src, 1);
+       ret = record_root_in_trans(trans, src, 1);
+       if (ret)
+               return ret;
 
        /*
         * btrfs_qgroup_inherit relies on a consistent view of the usage for the
@@ -1523,7 +1525,7 @@ out:
         * insert_dir_item()
         */
        if (!ret)
-               record_root_in_trans(trans, parent, 1);
+               ret = record_root_in_trans(trans, parent, 1);
        return ret;
 }