[dm-devel] [PATCHv2] dm-verity: Add error handling modes for corrupted blocks

[Alasdair G Kergon]

On Tue, Mar 17, 2015 at 04:37:07PM +0000, Sami Tolvanen wrote:
> +<mode>
> +    Optional. 

The format needs to remain easily extendable.

Two alternatives:

  Document this as a required field going forward, but say that if
  it is missing the default will be assumed.

  eio|logging|restart  (but those names are confusing)


Or (my preference) use a 'features' approach like most other targets do:

<number of feature> <feature arguments>

"error" is the existing default, so doesn't need stating.

The other two could be:
  restart_on_corruption
  ignore_corruption

Logging and events would happen in all cases, but if they did need
controlling independently, additional feature arguments could do that.

Alasdair