16 #define atomic_read(v)		(*(volatile int *)&(v)->counter)  argument
17 #define atomic_set(v,i)		((v)->counter = (i))  argument
27 #define atomic_add_negative(a, v)	(atomic_add_return((a), (v)) < 0)  argument
28 #define atomic_dec_return(v)		atomic_sub_return(1, (v))  argument
29 #define atomic_inc_return(v)		atomic_add_return(1, (v))  argument
30 #define atomic_inc_and_test(v)		(atomic_inc_return(v) == 0)  argument
31 #define atomic_sub_and_test(i,v)	(atomic_sub_return((i), (v)) == 0)  argument
32 #define atomic_dec_and_test(v)		(atomic_sub_return(1, (v)) == 0)  argument
34 #define atomic_inc(v)			atomic_add(1, (v))  argument
35 #define atomic_dec(v)			atomic_sub(1, (v))  argument
37 #define atomic_xchg(v, new)		(xchg(&((v)->counter), new))  argument
38 #define atomic_cmpxchg(v, o, n)		(cmpxchg(&((v)->counter), (o), (n)))  argument
49 static inline int __atomic_add_unless(atomic_t *v, int a, int u)  in __atomic_add_unless()