Release 4.9 include/linux/ftrace_irq.h

#ifndef _LINUX_FTRACE_IRQ_H

#define _LINUX_FTRACE_IRQ_H


#ifdef CONFIG_FTRACE_NMI_ENTER
extern void arch_ftrace_nmi_enter(void);
extern void arch_ftrace_nmi_exit(void);
#else


static inline void arch_ftrace_nmi_enter(void) { }
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static inline void arch_ftrace_nmi_exit(void) { }
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#endif

#ifdef CONFIG_HWLAT_TRACER
extern bool trace_hwlat_callback_enabled;
extern void trace_hwlat_callback(bool enter);
#endif



static inline void ftrace_nmi_enter(void)
{
#ifdef CONFIG_HWLAT_TRACER
	if (trace_hwlat_callback_enabled)
		trace_hwlat_callback(true);
#endif
	arch_ftrace_nmi_enter();
}

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static inline void ftrace_nmi_exit(void)
{
	arch_ftrace_nmi_exit();
#ifdef CONFIG_HWLAT_TRACER
	if (trace_hwlat_callback_enabled)
		trace_hwlat_callback(false);
#endif
}

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#endif /* _LINUX_FTRACE_IRQ_H */
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Directory: include/linux