18  * atomic_read - read atomic variable
19  * @v: pointer of type atomic_t
21  * Atomically reads the value of @v.
23 static inline int atomic_read(const atomic_t *v)  in atomic_read()  argument
25 	return ACCESS_ONCE((v)->counter);  in atomic_read()
29  * atomic_set - set atomic variable
30  * @v: pointer of type atomic_t
33  * Atomically sets the value of @v to @i.
35 static inline void atomic_set(atomic_t *v, int i)  in atomic_set()  argument
37 	v->counter = i;  in atomic_set()
41  * atomic_add - add integer to atomic variable
43  * @v: pointer of type atomic_t
45  * Atomically adds @i to @v.
47 static inline void atomic_add(int i, atomic_t *v)  in atomic_add()  argument
50 		     : "+m" (v->counter)  in atomic_add()
55  * atomic_sub - subtract integer from atomic variable
57  * @v: pointer of type atomic_t
59  * Atomically subtracts @i from @v.
61 static inline void atomic_sub(int i, atomic_t *v)  in atomic_sub()  argument
64 		     : "+m" (v->counter)  in atomic_sub()
69  * atomic_inc - increment atomic variable
70  * @v: pointer of type atomic_t
72  * Atomically increments @v by 1.
74 static inline void atomic_inc(atomic_t *v)  in atomic_inc()  argument
77 		     : "+m" (v->counter));  in atomic_inc()
81  * atomic_dec - decrement atomic variable
82  * @v: pointer of type atomic_t
84  * Atomically decrements @v by 1.
86 static inline void atomic_dec(atomic_t *v)  in atomic_dec()  argument
89 		     : "+m" (v->counter));  in atomic_dec()
93  * atomic_inc_short - increment of a short integer
94  * @v: pointer to type int
96  * Atomically adds 1 to @v
99 static inline short int atomic_inc_short(short int *v)  in atomic_inc_short()  argument
101 	asm(LOCK_PREFIX "addw $1, %0" : "+m" (*v));  in atomic_inc_short()
102 	return *v;  in atomic_inc_short()
105 /* These are x86-specific, used by some header files */