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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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