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    Subject[RFC][PATCH 0/3] cgroups: support for module-loadable subsystems
    This patch series implements simple support for building and loading
    subsystems as modules, both within and outside the kernel source tree.
    Module unloading is as yet unimplemented - it will require more advanced
    reference counting in the mount/unmount code, and I plan to work on this

    Patch #1 sets up the subsys[] array so its contents can be dynamic as
    modules appear and (eventually) disappear. I introduce an rwsem called
    subsys_mutex to protect against concurrent loads/unloads/reads, and
    modify iterations over the array to handle when subsystems are absent.

    Patch #2 implements an interface for modules to load subsystems, called
    cgroup_load_subsys, similar to cgroup_init_subsys, and adds a module
    pointer in struct cgroup_subsys.

    Patch #3 modifies the net_cls subsystem, which already had some module
    declarations, to be configurable as a module, which also serves as a
    simple proof-of-concept.

    -- bblum

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      Last update: 2009-11-02 22:45    [W:0.024 / U:16.084 seconds]
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