| #ifndef __BACKPORT_ASM_BARRIER_H | |
| #define __BACKPORT_ASM_BARRIER_H | |
| #include <linux/version.h> | |
| #if LINUX_VERSION_CODE >= KERNEL_VERSION(3,4,0) | |
| #include_next <asm/barrier.h> | |
| #endif /* >= 3.4 */ | |
| #ifndef dma_rmb | |
| #define dma_rmb() rmb() | |
| #endif | |
| #ifndef smp_mb__after_atomic | |
| #define smp_mb__after_atomic smp_mb__after_clear_bit | |
| #endif | |
| #endif /* __BACKPORT_ASM_BARRIER_H */ |