Re: [RFC v2 PATCH 0/8] VFS:userns: support portable root filesystems

From: Josh Triplett
Date: Wed May 04 2016 - 12:35:18 EST

On Wed, May 04, 2016 at 04:26:46PM +0200, Djalal Harouni wrote:
> This is version 2 of the VFS:userns support portable root filesystems
> RFC. Changes since version 1:
> * Update documentation and remove some ambiguity about the feature.
> Based on Josh Triplett comments.

Thanks for the clarifications.

> 3) The existing user namespace interface is the one used to do the
> translation from virtual to on-disk mapping.

This makes sense. Even if in the future we had a way to supply an
arbitrary VFS UID/GID mapping for a mount, independent of the userns,
what you've proposed would still make sense as a shorthand for the
common case of using the same mapping for both userns and VFS.

- Josh Triplett