[Virtio-fs] [virtiofsd-rs] Issue closed: Implement xattr name mappings

[virtiofs-bot at sinrega.org]

This is present in the C implementation, and allows the user of virtiofsd to define a fairly flexible mapping from the view of the xattr names the host fs has and the ones that the guest sees.

https://www.redhat.com/archives/virtio-fs/2020-August/msg00112.html
---
https://gitlab.com/virtio-fs/virtiofsd-rs/-/issues/3