include/linux/ftrace_irq.h

   1 #ifndef _LINUX_FTRACE_IRQ_H
   2 #define _LINUX_FTRACE_IRQ_H
   3
   4
   5 #ifdef CONFIG_FTRACE_NMI_ENTER
   6 extern void arch_ftrace_nmi_enter(void);
   7 extern void arch_ftrace_nmi_exit(void);
   8 #else
   9 static inline void arch_ftrace_nmi_enter(void) { }
  10 static inline void arch_ftrace_nmi_exit(void) { }
  11 #endif
  12
  13 #ifdef CONFIG_HWLAT_TRACER
  14 extern bool trace_hwlat_callback_enabled;
  15 extern void trace_hwlat_callback(bool enter);
  16 #endif
  17
  18 static inline void ftrace_nmi_enter(void)
  19 {
  20 #ifdef CONFIG_HWLAT_TRACER
  21         if (trace_hwlat_callback_enabled)
  22                 trace_hwlat_callback(true);
  23 #endif
  24         arch_ftrace_nmi_enter();
  25 }
  26
  27 static inline void ftrace_nmi_exit(void)
  28 {
  29         arch_ftrace_nmi_exit();
  30 #ifdef CONFIG_HWLAT_TRACER
  31         if (trace_hwlat_callback_enabled)
  32                 trace_hwlat_callback(false);
  33 #endif
  34 }
  35
  36 #endif /* _LINUX_FTRACE_IRQ_H */