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SubjectRe: [PATCH v4 0/4] cgroups: support for module-loadable subsystems
KAMEZAWA Hiroyuki wrote:
> On Wed, 6 Jan 2010 20:26:06 -0500
> Ben Blum <bblum@andrew.cmu.edu> wrote:
>
>> On Wed, Jan 06, 2010 at 04:04:14PM -0800, Andrew Morton wrote:
>>> On Thu, 31 Dec 2009 00:10:50 -0500
>>> Ben Blum <bblum@andrew.cmu.edu> wrote:
>>>
>>>> This patch series implements support for building, loading, and
>>>> unloading subsystems as modules, both within and outside the kernel
>>>> source tree. It provides an interface cgroup_load_subsys() and
>>>> cgroup_unload_subsys() which modular subsystems can use to register and
>>>> depart during runtime. The net_cls classifier subsystem serves as the
>>>> example for a subsystem which can be converted into a module using these
>>>> changes.
>>> What is the value in this? What are the usage scenarios? Why does the
>>> benefit of this change exceed the cost/risk/etc of merging it?
>> As discussed in the first posting of these patches, this provides the
>> ability for arbitrary subsystems to be used with cgroups.. cls_cgroup
>> would have already been a module except for a lack of support from
>> cgroups, and the change also allows other module-loadable classifiers
>> to add subsystems of their own.
>
> Hmm, do you have your own module in plan ?
>

Maybe the new blkio_cgroup can also be made module-able.



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