[sheepdog] [PATCH] Convert config file - the free disk space is now stored in the config file

[Christoph Hellwig]

On Sun, Aug 05, 2012 at 09:46:53PM +0200, Jens Weber wrote:
> To use this new feature (commit 5e39f98abf32faa340afc9b535a56391359b5234) do as follow
> 
>   - first shutdown cluster
>   - convert all config files with 'vnodes2autoconfig /path/to/store/config'
>   - update to new version and start cluster again

Can we please avoid incmpatible config file changes entirely?  The new
versions should simply have a magic that it can be detected and the C
code should handle both.