diff options
Diffstat (limited to 'arch/sparc/lib/atomic32.c')
| -rw-r--r-- | arch/sparc/lib/atomic32.c | 22 |
1 files changed, 19 insertions, 3 deletions
diff --git a/arch/sparc/lib/atomic32.c b/arch/sparc/lib/atomic32.c index 71cd65ab200c..b9d63c0a7aab 100644 --- a/arch/sparc/lib/atomic32.c +++ b/arch/sparc/lib/atomic32.c @@ -27,22 +27,38 @@ static DEFINE_SPINLOCK(dummy); #endif /* SMP */ -#define ATOMIC_OP(op, cop) \ +#define ATOMIC_OP_RETURN(op, c_op) \ int atomic_##op##_return(int i, atomic_t *v) \ { \ int ret; \ unsigned long flags; \ spin_lock_irqsave(ATOMIC_HASH(v), flags); \ \ - ret = (v->counter cop i); \ + ret = (v->counter c_op i); \ \ spin_unlock_irqrestore(ATOMIC_HASH(v), flags); \ return ret; \ } \ EXPORT_SYMBOL(atomic_##op##_return); -ATOMIC_OP(add, +=) +#define ATOMIC_OP(op, c_op) \ +void atomic_##op(int i, atomic_t *v) \ +{ \ + unsigned long flags; \ + spin_lock_irqsave(ATOMIC_HASH(v), flags); \ + \ + v->counter c_op i; \ + \ + spin_unlock_irqrestore(ATOMIC_HASH(v), flags); \ +} \ +EXPORT_SYMBOL(atomic_##op); + +ATOMIC_OP_RETURN(add, +=) +ATOMIC_OP(and, &=) +ATOMIC_OP(or, |=) +ATOMIC_OP(xor, ^=) +#undef ATOMIC_OP_RETURN #undef ATOMIC_OP int atomic_xchg(atomic_t *v, int new) |
