No cpu.cfs_period_us & cpu.cfs_quota_us controller found in Linuxkernel 3.5.1

[Dennis Chen]

HI,

I build a 3.5.1 kernel with below configuration snippet:

...
CONFIG_CGROUPS=y
# CONFIG_CGROUP_DEBUG is not set
CONFIG_CGROUP_FREEZER=y
CONFIG_CGROUP_DEVICE=y
CONFIG_CPUSETS=y
CONFIG_PROC_PID_CPUSET=y
CONFIG_CGROUP_CPUACCT=y
CONFIG_RESOURCE_COUNTERS=y
CONFIG_CGROUP_MEM_RES_CTLR=y
CONFIG_CGROUP_MEM_RES_CTLR_SWAP=y
CONFIG_CGROUP_MEM_RES_CTLR_SWAP_ENABLED=y
CONFIG_CGROUP_PERF=y
CONFIG_CGROUP_SCHED=y
CONFIG_FAIR_GROUP_SCHED=y
CONFIG_BLK_CGROUP=y
...

But when I start to use this new build kernel with ubuntu 12.10
distribution, and install the cgroup with #apt-get install cgroup-bin,
after that, I can't find cpu.cfs_period_us and cpu.cfs_quota_us in the
/sys/fs/cgroup/cpu folder.

Is there some one encounter the similar scenario as mine or some hints
about this?

Thanks
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