| 873f258becca ("dm thin metadata: do not write metadata if no changes occurred") | |
| 6a1b1ddc6a2c ("dm thin metadata: add wrappers for managing write locking of metadata") | |
| 3ab918281668 ("dm thin metadata: try to avoid ever aborting transactions") | |
| a685557fbbc3 ("dm thin: handle running out of data space vs concurrent discard") |