psi_enable 150 kernel/sched/psi.c static bool psi_enable; psi_enable 152 kernel/sched/psi.c static bool psi_enable = true; psi_enable 156 kernel/sched/psi.c return kstrtobool(str, &psi_enable) == 0; psi_enable 207 kernel/sched/psi.c if (!psi_enable) {