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Message-ID: <20140519203811.GF27506@mtj.dyndns.org> Date: Mon, 19 May 2014 16:38:11 -0400 From: Tejun Heo <tj@...nel.org> To: Li Zefan <lizefan@...wei.com> Cc: cgroups@...r.kernel.org, linux-kernel@...r.kernel.org Subject: Re: [PATCH cgroup/for-3.16] cgroup: disallow debug controller on the default hierarchy On Wed, May 14, 2014 at 07:33:07PM -0400, Tejun Heo wrote: > The debug controller, as its name suggests, exposes cgroup core > internals to userland to aid debugging. Unfortunately, except for the > name, there's no provision to prevent its usage in production > configurations and the controller is widely enabled and mounted > leaking internal details to userland. Like most other debug > information, the information exposed by debug isn't interesting even > for debugging itself once the related parts are working reliably. > > This controller has no reason for existing. This patch implements > cgrp_dfl_root_inhibit_ss_mask which can suppress specific subsystems > on the default hierarchy and adds the debug subsystem to it so that it > can be gradually deprecated as usages move towards the unified > hierarchy. > > Signed-off-by: Tejun Heo <tj@...nel.org> Applied to cgroup/for-3.16. Thanks. -- tejun -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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