| e726138676f8 ("btrfs: Factor out loop processing all refs of a head") | |
| b1cdbcb53a6e ("btrfs: Factor out ref head locking code in __btrfs_run_delayed_refs") | |
| 194ab0bc21cc ("btrfs: breakout empty head cleanup to a helper") | |
| b00e62507ec6 ("btrfs: move extent_op cleanup to a helper") | |
| 2eadaa22c17a ("btrfs: add a helper to return a head ref") |