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- #ifndef _ASM_BARRIER_H_
- #define _ASM_BARRIER_H_
- /*
- * asm-generic/barrier.h
- *
- * Copyright (C) 2016, Red Hat Inc, Alexander Gordeev <agordeev@redhat.com>
- *
- * This work is licensed under the terms of the GNU LGPL, version 2.
- */
- #ifndef mb
- #define mb() asm volatile("":::"memory")
- #endif
- #ifndef rmb
- #define rmb() asm volatile("":::"memory")
- #endif
- #ifndef wmb
- #define wmb() asm volatile("":::"memory")
- #endif
- #ifndef smp_mb
- #define smp_mb() mb()
- #endif
- #ifndef smp_rmb
- #define smp_rmb() rmb()
- #endif
- #ifndef smp_wmb
- #define smp_wmb() wmb()
- #endif
- #ifndef cpu_relax
- #define cpu_relax() asm volatile ("":::"memory")
- #endif
- #endif /* _ASM_BARRIER_H_ */
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