Hello Tejun (and Roman and Serge),

There are some older features, as well as new features in 
cgroups v2 that have not so far been documented in the cgroups(7)
manual page. I have been working on patches to add documentation
for these features, and the man-pages branch containing these
patches can be found at:
https://git.kernel.org/pub/scm/docs/man-pages/man-pages.git/log/?h=draft_cgroup_updates

I will send the updates as a series of plain text messages,
and CC relevant people on the various patches. Would it be
possible for you to review these patches please.

Thank you,

Michael

-- 
Michael Kerrisk
Linux man-pages maintainer; http://www.kernel.org/doc/man-pages/
Linux/UNIX System Programming Training: http://man7.org/training/