|  | /* | 
|  | *  linux/include/linux/nmi.h | 
|  | */ | 
|  | #ifndef LINUX_NMI_H | 
|  | #define LINUX_NMI_H | 
|  |  | 
|  | #include <linux/sched.h> | 
|  | #include <asm/irq.h> | 
|  |  | 
|  | /** | 
|  | * touch_nmi_watchdog - restart NMI watchdog timeout. | 
|  | * | 
|  | * If the architecture supports the NMI watchdog, touch_nmi_watchdog() | 
|  | * may be used to reset the timeout - for code which intentionally | 
|  | * disables interrupts for a long time. This call is stateless. | 
|  | */ | 
|  | #ifdef ARCH_HAS_NMI_WATCHDOG | 
|  | #include <asm/nmi.h> | 
|  | extern void touch_nmi_watchdog(void); | 
|  | #else | 
|  | # define touch_nmi_watchdog() touch_softlockup_watchdog() | 
|  | #endif | 
|  |  | 
|  | #ifndef trigger_all_cpu_backtrace | 
|  | #define trigger_all_cpu_backtrace() do { } while (0) | 
|  | #endif | 
|  |  | 
|  | #endif |