diff options
Diffstat (limited to 'include/asm-x86/system_64.h')
| -rw-r--r-- | include/asm-x86/system_64.h | 10 |
1 files changed, 3 insertions, 7 deletions
diff --git a/include/asm-x86/system_64.h b/include/asm-x86/system_64.h index 02175aa1d16..5022aecc333 100644 --- a/include/asm-x86/system_64.h +++ b/include/asm-x86/system_64.h @@ -141,8 +141,8 @@ static inline void write_cr8(unsigned long val) #ifdef CONFIG_SMP #define smp_mb() mb() -#define smp_rmb() rmb() -#define smp_wmb() wmb() +#define smp_rmb() barrier() +#define smp_wmb() barrier() #define smp_read_barrier_depends() do {} while(0) #else #define smp_mb() barrier() @@ -159,12 +159,8 @@ static inline void write_cr8(unsigned long val) */ #define mb() asm volatile("mfence":::"memory") #define rmb() asm volatile("lfence":::"memory") - -#ifdef CONFIG_UNORDERED_IO #define wmb() asm volatile("sfence" ::: "memory") -#else -#define wmb() asm volatile("" ::: "memory") -#endif + #define read_barrier_depends() do {} while(0) #define set_mb(var, value) do { (void) xchg(&var, value); } while (0) |