btrfs: handle btrfs_update_reloc_root failure in prepare_to_merge

btrfs_update_reloc_root will will return errors in the future, so handle
an error properly in prepare_to_merge.

Signed-off-by: Josef Bacik <josef@toxicpanda.com>
Reviewed-by: David Sterba <dsterba@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>
This commit is contained in:
Josef Bacik 2021-03-12 15:25:19 -05:00 • committed by David Sterba
commit bbae13f8ab