On Jul 5, 2006, at 11:48 AM, Manuel Bouyer wrote:

> If I mount a filesystem read-only I don't want anything to write to
> disk, dammit ! not even journal recovery.
>
>> You need a way to replay in-core with an on-disk
>> journal and on-disk-inconsistent metadata...
>
> I'm not sure, as long as we keep the property that metadata writes
> are done in an ordered way.

You absolutely MUST do this!  How else do you mount the root fs read- 
only at start-up?

-- thorpej