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kernel add
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#ifndef __UM_IRQFLAGS_H
#define __UM_IRQFLAGS_H
extern int get_signals(void);
extern int set_signals(int enable);
extern void block_signals(void);
extern void unblock_signals(void);
static inline unsigned long arch_local_save_flags(void)
{
return get_signals();
}
static inline void arch_local_irq_restore(unsigned long flags)
{
set_signals(flags);
}
static inline void arch_local_irq_enable(void)
{
unblock_signals();
}
static inline void arch_local_irq_disable(void)
{
block_signals();
}
static inline unsigned long arch_local_irq_save(void)
{
unsigned long flags;
flags = arch_local_save_flags();
arch_local_irq_disable();
return flags;
}
static inline bool arch_irqs_disabled(void)
{
return arch_local_save_flags() == 0;
}
#endif
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