Hello, Daniel.

On Thu, Sep 13, 2012 at 01:16:29PM +0100, Daniel P. Berrange wrote:

If you want application developers / users to understand this, then
you really need to update the Documentation/cgroups/cgroups.txt file
to provide suitable recommendations on use of hierarchies. As it
stands today it arguably encourages apps to make use of arbitrary
hierarchies. While some of the other docs (blkio-controller.txt) do
describe the limitations of their implementation, they don't ever
go as far as recommending against usage of hierarchies, which is
what you seem to be saying.

Just printing warning messages in the logs with no docs to explain
the issues which cause the warnings is not friendly to users, and
IMHO will just lead people to ignore the warnings.

Oh yeah, we definitely need to update the docs.  No doubt about it.
Will do.

Thanks.

-- 
tejun