Re: ext4 features

Krzysztof Halasa
2006-07-07T17:41:09Z

Valdis.Kletnieks@vt.edu writes:

> Backup programs want it stored with the file.

Not necessarily - backup may want to store the hashes in some central
place as well. I'm using such solution and it has only positives.

> If the filesystem stored a "guaranteed trustable current hash", Tripwire
> *could* use it to compare against its database rather than having to re-read
> the file and recompute it. Unfortunately, a useful trustable hash is
> basically incompatible with any sort of incremental updating (except for
> the special case of appending to the file).

Block hashes + master hash could allow something like that. Not sure
if we want it in the fs, though.
--
Krzysztof Halasa