diff --git a/arch/alpha/include/asm/atomic.h b/arch/alpha/include/asm/atomic.h
index e756d04..7e9434e 100644
--- a/arch/alpha/include/asm/atomic.h
+++ b/arch/alpha/include/asm/atomic.h

@@ -200,6 +200,7 @@ static __inline__ int atomic_add_unless(atomic_t *v, int a, int u)

?}

?#define atomic_inc_not_zero(v) atomic_add_unless((v), 1, 0)
+#define atomic_dec_not_zero(v) atomic_add_unless((v), -1, 0)

?/**
?* atomic64_add_unless - add unless the number is a given value

@@ -226,6 +227,7 @@ static __inline__ int atomic64_add_unless(atomic64_t *v, long a, long u)

?}

?#define atomic64_inc_not_zero(v) atomic64_add_unless((v), 1, 0)
+#define atomic64_dec_not_zero(v) atomic64_add_unless((v), -1, 0)

?#define atomic_add_negative(a, v) (atomic_add_return((a), (v)) < 0)
?#define atomic64_add_negative(a, v) (atomic64_add_return((a), (v)) < 0)

diff --git a/arch/alpha/include/asm/local.h b/arch/alpha/include/asm/local.h
index b9e3e33..09fb327 100644
--- a/arch/alpha/include/asm/local.h
+++ b/arch/alpha/include/asm/local.h

@@ -79,6 +79,7 @@ static __inline__ long local_sub_return(long i, local_t * l)

? ? ? ?c != (u); ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? \
?})
?#define local_inc_not_zero(l) local_add_unless((l), 1, 0)
+#define local_dec_not_zero(l) local_add_unless((l), -1, 0)

?#define local_add_negative(a, l) (local_add_return((a), (l)) < 0)