Hello,

On Fri, May 19, 2017 at 03:33:14PM -0400, Waiman Long wrote:

On 05/19/2017 03:21 PM, Tejun Heo wrote:

quoted

Yeah but it also shows up as an integral part of stable interface
rather than e.g. /sys/kernel/debug.  This isn't of any interest to
people who aren't developing cgroup core code.  There is no reason to
risk growing dependencies on it.

The debug controller is used to show information relevant to the cgroup
its css'es are attached to. So it will be very hard to use if we
relocate to /sys/kernel/debug, for example. Currently, nothing in the
debug controller other than debug_cgrp_subsys are exported. I don't see
any risk of having dependency on that controller from other parts of the
kernel.

Oh, sure, I wasn't suggesting moving it under /sys/kernel/debug but
that we'd want to take extra precautions as we can't.

Thanks.

-- 
tejun

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