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Re: Journaling patches

On Tue, Apr 22, 2008 at 11:32:09PM +1000, Simon Burge wrote:
> Folks,
> Unfortunately none of the outstanding issues have been solved yet with
> the journaling support.  However, I'd like to commit the patches to the
> source tree in the new few days - this will hopefully make it easier for
> more people to test and look at these issues.
> In summary, the issues are:
>  - Can't log the root filesystem (or any FS if /dev isn't an ffs).
>  - Log must currently live at end of partition.
>  - Some heavy workload performance issues on SMP machines.
>  - Some stability issues on SMP machines.
> There is one other behavioural change.  You now need to use the "-f"
> option to mount a dirty filesystem.  I'm not sure of the original reason
> for this, and am not sure if this behaviour is desirable or not.  Any
> comments?

Why? The whole idea with journaling is that once you play the journal, the 
file system is consistent. So why need -f?

Yes, things can happen, which is why we still have fsck. But I think we 
shouldn't need -f with a journal.

Take care,


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