Hello,
Sorry for replying a bit late...
> This is my first post to the list. I want to add online defrag support
> to ext2/3/4 just to scratch an itch.
>
> I've searched the archives and googled around, and I've come to the
> following conclusions:
> *An offline defrag tool is available but dangerous.
For original e2defrag - yes. But me (and several other people
independently as I've learnt recently) have written some tools which
should result in something useful. If you're interested, you can join
[EMAIL PROTECTED] - it's led by one guy who is doing
defrag and stuff as his google summer of code project.
> *Some patches exist that provide preliminary support for online defrag
> in the ext3 driver, but interest in improving/integrating these patches
> is low.
The code itself for ext3 is not a big deal. Main problem are kernel
interfaces and I hope to find some time soon to put together some
reasonable proposal for reasonably generic calls...
> *An implementation of an ext* filesystem driver can work with any
> ext2/3/4 filesystem as long as it supports the necessary revision
> (GOOD_OLD_REV or DYNAMIC_REV) and feature flags set in the filesystem.
Not sure what you mean here...
Honza
--
Jan Kara <[EMAIL PROTECTED]>
SuSE CR Labs
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