[RFC 0/3] sched: fix nr_busy_cpus

The nr_busy_cpus field of the sched_group_power is sometime different from 0 whereas the platform is fully idle. This serie fixes 3 use cases: - when the SCHED softirq is raised on an idle core for idle load balance but the platform doesn't go out of the cpuidle state - when some CPUs enter idle state while booting all CPUs - when a CPU is unplug and/or replug

Vincent Guittot (3): sched: fix nr_busy_cpus with coupled cpuidle sched: fix init NOHZ_IDLE flag sched: fix update NOHZ_IDLE flag

kernel/sched/core.c | 1 + kernel/sched/fair.c | 2 +- kernel/time/tick-sched.c | 2 ++ 3 files changed, 4 insertions(+), 1 deletion(-)