diff options
Diffstat (limited to 'libc/sysdeps/linux/alpha/bits/atomic.h')
| -rw-r--r-- | libc/sysdeps/linux/alpha/bits/atomic.h | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/libc/sysdeps/linux/alpha/bits/atomic.h b/libc/sysdeps/linux/alpha/bits/atomic.h index bbfd201b5..5ef091dc0 100644 --- a/libc/sysdeps/linux/alpha/bits/atomic.h +++ b/libc/sysdeps/linux/alpha/bits/atomic.h @@ -348,7 +348,7 @@ typedef uintmax_t uatomic_max_t; : "memory"); \ __ret; }) -/* ??? Barrier semantics for atomic_exchange_and_add appear to be +/* ??? Barrier semantics for atomic_exchange_and_add appear to be undefined. Use full barrier for now, as that's safe. */ #define atomic_exchange_and_add(mem, value) \ __atomic_val_bysize (__arch_exchange_and_add, int, mem, value, __MB, __MB) |