diff options
Diffstat (limited to 'arch/x86/include/asm/cmpxchg_32.h')
| -rw-r--r-- | arch/x86/include/asm/cmpxchg_32.h | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/arch/x86/include/asm/cmpxchg_32.h b/arch/x86/include/asm/cmpxchg_32.h index ffb9bb6b6c3..8859e12dd3c 100644 --- a/arch/x86/include/asm/cmpxchg_32.h +++ b/arch/x86/include/asm/cmpxchg_32.h | |||
| @@ -271,7 +271,8 @@ extern unsigned long long cmpxchg_486_u64(volatile void *, u64, u64); | |||
| 271 | __typeof__(*(ptr)) __ret; \ | 271 | __typeof__(*(ptr)) __ret; \ |
| 272 | __typeof__(*(ptr)) __old = (o); \ | 272 | __typeof__(*(ptr)) __old = (o); \ |
| 273 | __typeof__(*(ptr)) __new = (n); \ | 273 | __typeof__(*(ptr)) __new = (n); \ |
| 274 | alternative_io("call cmpxchg8b_emu", \ | 274 | alternative_io(LOCK_PREFIX_HERE \ |
| 275 | "call cmpxchg8b_emu", \ | ||
| 275 | "lock; cmpxchg8b (%%esi)" , \ | 276 | "lock; cmpxchg8b (%%esi)" , \ |
| 276 | X86_FEATURE_CX8, \ | 277 | X86_FEATURE_CX8, \ |
| 277 | "=A" (__ret), \ | 278 | "=A" (__ret), \ |