[Libguestfs] [PATCH] Add tune2fs support to libguestfs.

[Richard W.M. Jones]

At the moment OpenStack uses kpartx and nbd to resize filesystems and
inject files to guests.  I sincerely hope they don't allow untrusted
users to upload guest images / AMIs :-(

To fix this I'm looking into adding libguestfs support as an optional
backend in OpenStack.

The only missing feature in libguestfs is the ability to call tune2fs
on a filesystem.  This patch series adds tune2fs support.  This also
reveals a few bugs in the generator when you start to have calls with
lots of required and optional parameters.

Rich.