Hi!
> Support of extended attributes in cgroups was added in Linux 3.7.

I've tried to run the test on my machine where cgroups are allready
mounted to /sys/fs/cgroup (which seems to be the case for modern
distributions). In such situation the mount in the test fails with
EBUSY. I looks like the root hierarchy can be mounted only once. Now we
cannot unmout the /sys/fs/cgroup as this one is used by the system.

But it looks like we can mount each of the controllers, i.e.

for each controller:
        mkdir /path/type
        mount -t cgroup -o type type /path/type

So the options are either to use the /sys/fs/cgroup directory or mount
each controller one by one.

What do you think?

-- 
Cyril Hrubis
[email protected]

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