1 #ifndef _ASM_BARRIER_H_ 2 #define _ASM_BARRIER_H_ 3 /* 4 * asm-generic/barrier.h 5 * 6 * Copyright (C) 2016, Red Hat Inc, Alexander Gordeev <agordeev@redhat.com> 7 * 8 * This work is licensed under the terms of the GNU LGPL, version 2. 9 */ 10 11 #ifndef mb 12 #define mb() asm volatile("":::"memory") 13 #endif 14 #ifndef rmb 15 #define rmb() asm volatile("":::"memory") 16 #endif 17 #ifndef wmb 18 #define wmb() asm volatile("":::"memory") 19 #endif 20 21 #endif /* _ASM_BARRIER_H_ */ 22