ZFS NFSv4 ACLs Support

[grarpamp]

> I've noticed that rsync does not currently support ZFS NFSv4 ACLs. If I were
> to create a patch to enable support, would rsync accept it or should I
> submit the patch to IllumOS? Either way, I'll be creating a patch. I just
> want to know if upstream would like the patch.

Surely many ZFS users would be interested in this, as would I.
Feel free to post it widely :)
Including to FreeBSD, if that an OS you use.