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Diffstat (limited to '')
| -rw-r--r-- | arch/x86/include/asm/cmpxchg.h | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/arch/x86/include/asm/cmpxchg.h b/arch/x86/include/asm/cmpxchg.h index d536365061..5612648b02 100644 --- a/arch/x86/include/asm/cmpxchg.h +++ b/arch/x86/include/asm/cmpxchg.h @@ -221,12 +221,18 @@ extern void __add_wrong_size(void) #define __try_cmpxchg(ptr, pold, new, size) \ __raw_try_cmpxchg((ptr), (pold), (new), (size), LOCK_PREFIX) +#define __sync_try_cmpxchg(ptr, pold, new, size) \ + __raw_try_cmpxchg((ptr), (pold), (new), (size), "lock; ") + #define __try_cmpxchg_local(ptr, pold, new, size) \ __raw_try_cmpxchg((ptr), (pold), (new), (size), "") #define arch_try_cmpxchg(ptr, pold, new) \ __try_cmpxchg((ptr), (pold), (new), sizeof(*(ptr))) +#define arch_sync_try_cmpxchg(ptr, pold, new) \ + __sync_try_cmpxchg((ptr), (pold), (new), sizeof(*(ptr))) + #define arch_try_cmpxchg_local(ptr, pold, new) \ __try_cmpxchg_local((ptr), (pold), (new), sizeof(*(ptr))) |