Quotas for VFS plugins

Hello Genodians

We have a VFS component that provides a RAM file system to an untrusted component. If this component writes a file too large the VFS issues a resource request and is blocked.

We would like to add file system quotas to in order for the VFS to be able to limit the size components can write.

The idea is to add this to all plugins for which it makes sense.

Has there already somebody started some work in this direction and what are the general thoughts about it?

Regards, Pirmin