+// SPDX-License-Identifier: GPL-2.0
/*
* Detect hard and soft lockups on a system
*
#include <linux/workqueue.h>
#include <linux/sched/clock.h>
#include <linux/sched/debug.h>
+#include <linux/sched/isolation.h>
#include <asm/irq_regs.h>
#include <linux/kvm_para.h>
void __init lockup_detector_init(void)
{
-#ifdef CONFIG_NO_HZ_FULL
- if (tick_nohz_full_enabled()) {
+ if (tick_nohz_full_enabled())
pr_info("Disabling watchdog on nohz_full cores by default\n");
- cpumask_copy(&watchdog_cpumask, housekeeping_mask);
- } else
- cpumask_copy(&watchdog_cpumask, cpu_possible_mask);
-#else
- cpumask_copy(&watchdog_cpumask, cpu_possible_mask);
-#endif
+
+ cpumask_copy(&watchdog_cpumask,
+ housekeeping_cpumask(HK_FLAG_TIMER));
if (!watchdog_nmi_probe())
nmi_watchdog_available = true;