diff options
Diffstat (limited to 'arch/ia64/include/asm/atomic.h')
| -rw-r--r-- | arch/ia64/include/asm/atomic.h | 30 |
1 files changed, 11 insertions, 19 deletions
diff --git a/arch/ia64/include/asm/atomic.h b/arch/ia64/include/asm/atomic.h index 88405cb0832..0f8bf48dadf 100644 --- a/arch/ia64/include/asm/atomic.h +++ b/arch/ia64/include/asm/atomic.h @@ -15,14 +15,14 @@ #include <linux/types.h> #include <asm/intrinsics.h> -#include <asm/system.h> +#include <asm/barrier.h> -#define ATOMIC_INIT(i) ((atomic_t) { (i) }) -#define ATOMIC64_INIT(i) ((atomic64_t) { (i) }) +#define ATOMIC_INIT(i) { (i) } +#define ATOMIC64_INIT(i) { (i) } -#define atomic_read(v) ((v)->counter) -#define atomic64_read(v) ((v)->counter) +#define atomic_read(v) (*(volatile int *)&(v)->counter) +#define atomic64_read(v) (*(volatile long *)&(v)->counter) #define atomic_set(v,i) (((v)->counter) = (i)) #define atomic64_set(v,i) (((v)->counter) = (i)) @@ -41,7 +41,7 @@ ia64_atomic_add (int i, atomic_t *v) return new; } -static __inline__ int +static __inline__ long ia64_atomic64_add (__s64 i, atomic64_t *v) { __s64 old, new; @@ -69,7 +69,7 @@ ia64_atomic_sub (int i, atomic_t *v) return new; } -static __inline__ int +static __inline__ long ia64_atomic64_sub (__s64 i, atomic64_t *v) { __s64 old, new; @@ -90,7 +90,7 @@ ia64_atomic64_sub (__s64 i, atomic64_t *v) (cmpxchg(&((v)->counter), old, new)) #define atomic64_xchg(v, new) (xchg(&((v)->counter), new)) -static __inline__ int atomic_add_unless(atomic_t *v, int a, int u) +static __inline__ int __atomic_add_unless(atomic_t *v, int a, int u) { int c, old; c = atomic_read(v); @@ -102,12 +102,11 @@ static __inline__ int atomic_add_unless(atomic_t *v, int a, int u) break; c = old; } - return c != (u); + return c; } -#define atomic_inc_not_zero(v) atomic_add_unless((v), 1, 0) -static __inline__ int atomic64_add_unless(atomic64_t *v, long a, long u) +static __inline__ long atomic64_add_unless(atomic64_t *v, long a, long u) { long c, old; c = atomic64_read(v); @@ -158,7 +157,7 @@ atomic_add_negative (int i, atomic_t *v) return atomic_add_return(i, v) < 0; } -static __inline__ int +static __inline__ long atomic64_add_negative (__s64 i, atomic64_t *v) { return atomic64_add_return(i, v) < 0; @@ -210,11 +209,4 @@ atomic64_add_negative (__s64 i, atomic64_t *v) #define atomic64_inc(v) atomic64_add(1, (v)) #define atomic64_dec(v) atomic64_sub(1, (v)) -/* Atomic operations are already serializing */ -#define smp_mb__before_atomic_dec() barrier() -#define smp_mb__after_atomic_dec() barrier() -#define smp_mb__before_atomic_inc() barrier() -#define smp_mb__after_atomic_inc() barrier() - -#include <asm-generic/atomic-long.h> #endif /* _ASM_IA64_ATOMIC_H */ |