diff options
Diffstat (limited to 'arch/x86/kernel/apic/hw_nmi.c')
| -rw-r--r-- | arch/x86/kernel/apic/hw_nmi.c | 19 |
1 files changed, 13 insertions, 6 deletions
diff --git a/arch/x86/kernel/apic/hw_nmi.c b/arch/x86/kernel/apic/hw_nmi.c index 3e25afe..93da91d 100644 --- a/arch/x86/kernel/apic/hw_nmi.c +++ b/arch/x86/kernel/apic/hw_nmi.c @@ -17,9 +17,7 @@ #include <linux/nmi.h> #include <linux/module.h> -/* For reliability, we're prepared to waste bits here. */ -static DECLARE_BITMAP(backtrace_mask, NR_CPUS) __read_mostly; - +#ifdef ARCH_HAS_NMI_WATCHDOG #ifdef CONFIG_HARDLOCKUP_DETECTOR u64 hw_nmi_get_sample_period(void) { @@ -27,7 +25,19 @@ u64 hw_nmi_get_sample_period(void) } #endif +#ifndef CONFIG_HARDLOCKUP_DETECTOR +void touch_nmi_watchdog(void) +{ + touch_softlockup_watchdog(); +} +EXPORT_SYMBOL(touch_nmi_watchdog); +#endif +#endif + #ifdef arch_trigger_all_cpu_backtrace +/* For reliability, we're prepared to waste bits here. */ +static DECLARE_BITMAP(backtrace_mask, NR_CPUS) __read_mostly; + void arch_trigger_all_cpu_backtrace(void) { int i; @@ -92,6 +102,3 @@ static int __init register_trigger_all_cpu_backtrace(void) } early_initcall(register_trigger_all_cpu_backtrace); #endif - -/* STUB calls to mimic old nmi_watchdog behaviour */ -int unknown_nmi_panic; |