[PATCH 0/1, v5] cgroup/freezer: add per freezer duty ratio control

[jacob . jun . pan]

From: Jacob Pan <jacob.jun.pan@xxxxxxxxxxxxxxx>

Fixing subject in cover letter, should be v4 instead of v3

Changelog:
v5:	- improve error handling in duty ratio/ period writes
	- fix the logic to avoid kthread creation when ratio and
	  period are invalid.
	- 100% frozen is not permitted in duty ratio set up

v4:	- limit kthread creation only when valid duty ratio
	  parameters are given.
	- changed period back to milisecond
	- consolidated paramter write functions

v3:	- added documentation

v2:
	- use read_u64/write_u64 instead of string read/write
	- use period in second instead of ms
	- renamed duty_ratio to duty_ratio_pct, be more specific
	- removed locking around period and duty_ratio reads


Jacob Pan (1):
  cgroup/freezer: add per freezer duty ratio control

 Documentation/cgroups/freezer-subsystem.txt |   23 ++++++
 kernel/cgroup_freezer.c                     |  109 ++++++++++++++++++++++++++-
 2 files changed, 130 insertions(+), 2 deletions(-)

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