On Tue, Feb 23, 2016 at 11:58 AM, Michael Kerrisk (man-pages)
[off-list ref] wrote:

So, in terms of actually testing this stuff, is it just a matter of
applying your patch series to the kernel, building the kernel, pulling
the RichACL user-space tools from Git, and mount(8)ing a filesystem with
the right option?

You'd create a test filesystem with the appropriate feature flag set
(mkfs.ext4 -O richacl2 / mkfs.xfs -m richacl=1), RichACLs are not
enabled by mount options anymore. This will obviously require versions
of e2fsprogs / xfsprogs that understand the feature. If you want
coreutils support which isn't strictly necessary, you'll need the
patched version too. Other than that, it's really simple.

Andreas