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Commit 1149ab6b authored by Wang Shilong's avatar Wang Shilong Committed by Josef Bacik
Browse files

Btrfs: remove some BUG_ONs() when walking backref tree 



The only error return value of __add_prelim_ref() is -ENOMEM,
just return errors rather than trigger BUG_ON().

Signed-off-by: default avatarWang Shilong <wangsl-fnst@cn.fujitsu.com>
Reviewed-by: default avatarDavid Sterba <dsterba@suse.cz>
Signed-off-by: default avatarJosef Bacik <jbacik@fusionio.com>
parent 92f183aa

fs/btrfs/backref.c

+7 −3
Original line number Diff line number Diff line
@@ -582,7 +582,8 @@ static int __add_delayed_refs(struct btrfs_delayed_ref_head *head, u64 seq, 
		default:

			WARN_ON(1);

		}

		BUG_ON(ret);

		if (ret)

			return ret;

	}



	return 0;
@@ -680,7 +681,8 @@ static int __add_inline_refs(struct btrfs_fs_info *fs_info, 
		default:

			WARN_ON(1);

		}

		BUG_ON(ret);

		if (ret)

			return ret;

		ptr += btrfs_extent_inline_ref_size(type);

	}
@@ -762,7 +764,9 @@ static int __add_keyed_refs(struct btrfs_fs_info *fs_info, 
		default:

			WARN_ON(1);

		}

		BUG_ON(ret);

		if (ret)

			return ret;



	}



	return ret;