diff options
| -rw-r--r-- | arch/s390/include/asm/atomic.h | 23 |
1 files changed, 2 insertions, 21 deletions
diff --git a/arch/s390/include/asm/atomic.h b/arch/s390/include/asm/atomic.h index c797832daa5f..fea2c8887da5 100644 --- a/arch/s390/include/asm/atomic.h +++ b/arch/s390/include/asm/atomic.h @@ -60,11 +60,7 @@ static inline int atomic_add_return(int i, atomic_t *v) #define atomic_inc(_v) atomic_add_return(1, _v) #define atomic_inc_return(_v) atomic_add_return(1, _v) #define atomic_inc_and_test(_v) (atomic_add_return(1, _v) == 0) - -static inline int atomic_sub_return(int i, atomic_t *v) -{ - return __CS_LOOP(v, i, "sr"); -} +#define atomic_sub_return(_i, _v) atomic_add_return(-(int)(_i), _v) #define atomic_sub(_i, _v) atomic_sub_return(_i, _v) #define atomic_sub_and_test(_i, _v) (atomic_sub_return(_i, _v) == 0) #define atomic_dec(_v) atomic_sub_return(1, _v) @@ -152,11 +148,6 @@ static inline long long atomic64_add_return(long long i, atomic64_t *v) return __CSG_LOOP(v, i, "agr"); } -static inline long long atomic64_sub_return(long long i, atomic64_t *v) -{ - return __CSG_LOOP(v, i, "sgr"); -} - static inline void atomic64_clear_mask(unsigned long mask, atomic64_t *v) { __CSG_LOOP(v, ~mask, "ngr"); @@ -248,17 +239,6 @@ static inline long long atomic64_add_return(long long i, atomic64_t *v) return new; } -static inline long long atomic64_sub_return(long long i, atomic64_t *v) -{ - long long old, new; - - do { - old = atomic64_read(v); - new = old - i; - } while (atomic64_cmpxchg(v, old, new) != old); - return new; -} - static inline void atomic64_set_mask(unsigned long long mask, atomic64_t *v) { long long old, new; @@ -319,6 +299,7 @@ static inline long long atomic64_dec_if_positive(atomic64_t *v) #define atomic64_inc(_v) atomic64_add_return(1, _v) #define atomic64_inc_return(_v) atomic64_add_return(1, _v) #define atomic64_inc_and_test(_v) (atomic64_add_return(1, _v) == 0) +#define atomic64_sub_return(_i, _v) atomic64_add_return(-(long long)(_i), _v) #define atomic64_sub(_i, _v) atomic64_sub_return(_i, _v) #define atomic64_sub_and_test(_i, _v) (atomic64_sub_return(_i, _v) == 0) #define atomic64_dec(_v) atomic64_sub_return(1, _v) |