Comment 1 for bug 480739

Hi Stéphane,

It's likely these were not enabled because they are experimental:

config CGROUP_DEVICE
        bool "Device controller for cgroups"
        depends on CGROUPS && EXPERIMENTAL
        help
          Provides a cgroup implementing whitelists for devices which
          a process in the cgroup can mknod or open.

config CGROUP_MEM_RES_CTLR_SWAP
        bool "Memory Resource Controller Swap Extension(EXPERIMENTAL)"
        depends on CGROUP_MEM_RES_CTLR && SWAP && EXPERIMENTAL
        help
          Add swap management feature to memory resource controller. When you
          enable this, you can limit mem+swap usage per cgroup. In other words,
          when you disable this, memory resource controller has no cares to
          usage of swap...a process can exhaust all of the swap. This extension
          is useful when you want to avoid exhaustion swap but this itself
          adds more overheads and consumes memory for remembering information.
          Especially if you use 32bit system or small memory system, please
          be careful about enabling this. When memory resource controller
          is disabled by boot option, this will be automatically disabled and
          there will be no overhead from this. Even when you set this config=y,
          if boot option "noswapaccount" is set, swap will not be accounted.
          Now, memory usage of swap_cgroup is 2 bytes per entry. If swap page
          size is 4096bytes, 512k per 1Gbytes of swap.