Miklos Szeredi <miklos@xxxxxxxxxx> wrote:
> On Tue, 14 Jan 2025 at 16:15, David Howells <dhowells@xxxxxxxxxx> wrote:
>
> > What's the best way for a network filesystem to make a native
> > directory-is-opaque flag available to the system? Is it best to catch
> > setxattr/getxattr/removexattr("overlay.opaque") and translate these into the
> > RPCs to wrangle the flag?
>
> I don't know. Out of curiosity, which filesystem is it?
One of the varieties of AFS. Unfortunately, xattrs aren't a thing and can't
easily be added because of the volume transfer and backup protocols and
formats.
> There's "trusted.overlay.opaque" and "user.overlay.opaque" and are
> used in different scenarios. There was also talk of making the
> "trusted." namespace nest inside user namespaces, but apparently it's
> not so important.
>
> Which one would you like to emulate?
Um - I don't know the difference to answer that question.
David
