Re: [PATCH v4] control groups: documentation improvements

From: Tejun Heo
Date: Thu Apr 17 2014 - 09:16:31 EST


Hello, Glyn.

On Thu, Apr 17, 2014 at 11:46:13AM +0100, Glyn Normington wrote:
> +There may be zero or more active hierarchies. Each hierarchy has an
> +instance of the cgroup virtual filesystem associated with it. The tree
> +of cgroups is represented by the directory tree in the cgroup virtual
> +filesystem.
> +
> +The sets of subsystems participating in distinct hierarchies are either
> +identical or disjoint. If the sets are identical, the virtual filesystems
> +associated with the hierarchies have identical content and a change in
> +one is automatically reflected in all the others.

I can't say I'm a big fan of these definitions in mathematical terms.
They're so precise and useless at the same time. That said, I don't
really understand the last paragraph. Is it trying to talk about
multiple mounts of a single hierarchy?

Thanks.

--
tejun
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