Re: Ext4 devel interlock meeting minutes (March 7, 2007)

Aneesh Kumar
2007-03-11T08:55:45Z

On 3/9/07, Andreas Dilger <adilger@clusterfs.com> wrote:
> On Mar 08, 2007 10:06 -0800, Avantika Mathur wrote:
> >
>
> > - Aneesh Veetil has been working on a migration tool from block based to
> > extents allocation. He is looking at two options.
> >
> > - Offline Migration: Modify e2fsprogs code to actually be able to create
> > extents. This involves a lot of duplication of ext4 code (btree).
> > e2fsprogs has code for interpreting extents, but code for creating them
> > would have to be duplicated.
> >
> > - Online Migration: Use existing filesystem code to convert to extents -
> > similar to online defragmentation.
>
> I would prefer to implement this using the same code as the online defrag.
> To be useful, the online defrag has to work with block-mapped files anyways.

Is there a tree (git or hg ) which i can use to get a working online defrag ?

-aneesh