diff options
Diffstat (limited to 'arch/x86/um/asm/barrier.h')
-rw-r--r-- | arch/x86/um/asm/barrier.h | 11 |
1 files changed, 0 insertions, 11 deletions
diff --git a/arch/x86/um/asm/barrier.h b/arch/x86/um/asm/barrier.h index 8ffd2146fa6a..7e8a1a650435 100644 --- a/arch/x86/um/asm/barrier.h +++ b/arch/x86/um/asm/barrier.h | |||
@@ -36,22 +36,11 @@ | |||
36 | #endif /* CONFIG_X86_PPRO_FENCE */ | 36 | #endif /* CONFIG_X86_PPRO_FENCE */ |
37 | #define dma_wmb() barrier() | 37 | #define dma_wmb() barrier() |
38 | 38 | ||
39 | #ifdef CONFIG_SMP | ||
40 | |||
41 | #define smp_mb() mb() | ||
42 | #define smp_rmb() dma_rmb() | ||
43 | #define smp_wmb() barrier() | ||
44 | #define set_mb(var, value) do { (void)xchg(&var, value); } while (0) | ||
45 | |||
46 | #else /* CONFIG_SMP */ | ||
47 | |||
48 | #define smp_mb() barrier() | 39 | #define smp_mb() barrier() |
49 | #define smp_rmb() barrier() | 40 | #define smp_rmb() barrier() |
50 | #define smp_wmb() barrier() | 41 | #define smp_wmb() barrier() |
51 | #define set_mb(var, value) do { var = value; barrier(); } while (0) | 42 | #define set_mb(var, value) do { var = value; barrier(); } while (0) |
52 | 43 | ||
53 | #endif /* CONFIG_SMP */ | ||
54 | |||
55 | #define read_barrier_depends() do { } while (0) | 44 | #define read_barrier_depends() do { } while (0) |
56 | #define smp_read_barrier_depends() do { } while (0) | 45 | #define smp_read_barrier_depends() do { } while (0) |
57 | 46 | ||