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 some CPUs enter idle state while booting all CPUs - when a CPU is unplug and/or replug
Change since V2: - change the initialization to idle state instead of busy state so a CPU that enters idle during the build of the sched_domain will not corrupt the initialization state
Change since V1: - remove the patch for SCHED softirq on an idle core use case as it was a side effect of the other use cases.
Vincent Guittot (2): sched: fix init NOHZ_IDLE flag sched: fix update NOHZ_IDLE flag
kernel/sched/core.c | 4 +++- kernel/sched/fair.c | 2 +- 2 files changed, 4 insertions(+), 2 deletions(-)