diff options
Diffstat (limited to 'arch/x86/include/asm/cmpxchg_64.h')
| -rw-r--r-- | arch/x86/include/asm/cmpxchg_64.h | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/arch/x86/include/asm/cmpxchg_64.h b/arch/x86/include/asm/cmpxchg_64.h index 072e5459fe2f..250187ac8248 100644 --- a/arch/x86/include/asm/cmpxchg_64.h +++ b/arch/x86/include/asm/cmpxchg_64.h @@ -19,6 +19,12 @@ static inline void set_64bit(volatile u64 *ptr, u64 val) arch_cmpxchg_local((ptr), (o), (n)); \ }) +#define arch_try_cmpxchg64(ptr, po, n) \ +({ \ + BUILD_BUG_ON(sizeof(*(ptr)) != 8); \ + arch_try_cmpxchg((ptr), (po), (n)); \ +}) + #define system_has_cmpxchg_double() boot_cpu_has(X86_FEATURE_CX16) #endif /* _ASM_X86_CMPXCHG_64_H */ |