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33 MB overhead with ext3

Posted Aug 26, 2004 15:11 UTC (Thu) by meuh (subscriber, #22042)
In reply to: 33 MB overhead with ext3 by dmantione
Parent article: Looking at reiser4

Reiserfs is not a journalised filesystem.
It's an atomic one, so there's no need for a journal.

Or I don't understand Hans posts :)

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Posted Oct 22, 2004 15:43 UTC (Fri) by pont (guest, #25575) [Link]

>Reiserfs is not a journalised filesystem.
>It's an atomic one, so there's no need for a journal.
>
>Or I don't understand Hans posts :)

An atomic filesystem means a transaction is completed or not completed, not half completed 3/4 completed, etc. etc, To make a filesystem atomic we use logs meta-data logging as in Reiser3 or wandering logs as in Reiser4.