This patchset provides three patches for the basis to integrate cpuidle with the scheduler.
The first patch is a cleanup. The second one adds the sched balance option as requested by Ingo. The third one stores the idle state a cpu is and adds a rcu_barrier() to prevent races when using the pointed object.
This patchset is based on top of v3.15-rc2.
This patchset does not modify the behavior of the scheduler.
Taking into account the cpuidle information from the scheduler will be posted in a separate patchset in order to keep focused on the right decisions the scheduler should take regarding the policy vs idle parameters.
Daniel Lezcano (3): sched: idle: Encapsulate the code to compile it out sched: idle: Add sched balance option sched: idle: Store the idle state the cpu is
drivers/cpuidle/cpuidle.c | 6 ++ include/linux/sched/sysctl.h | 14 ++++ kernel/sched/fair.c | 92 ++++++++++++++++++++++- kernel/sched/idle.c | 169 +++++++++++++++++++++++------------------- kernel/sched/sched.h | 5 ++ kernel/sysctl.c | 11 +++ 6 files changed, 220 insertions(+), 77 deletions(-)