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#ifndef __BARRIER_H
#define __BARRIER_H
#include <asm/compiler.h>
#define mb() \
__asm__ __volatile__("mb": : :"memory")
#define rmb() \
__asm__ __volatile__("mb": : :"memory")
#define wmb() \
__asm__ __volatile__("wmb": : :"memory")
#define read_barrier_depends() \
__asm__ __volatile__("mb": : :"memory")
#ifdef CONFIG_SMP
#define __ASM_SMP_MB "\tmb\n"
#define smp_mb() mb()
#define smp_rmb() rmb()
#define smp_wmb() wmb()
#define smp_read_barrier_depends() read_barrier_depends()
#else
#define __ASM_SMP_MB
#define smp_mb() barrier()
#define smp_rmb() barrier()
#define smp_wmb() barrier()
#define smp_read_barrier_depends() do { } while (0)
#endif
#define set_mb(var, value) \
do { var = value; mb(); } while (0)
#endif /* __BARRIER_H */