30  * value of @a target equals @a old_value, @a target is set to @a new_value.
31  * If the current value of @a target does not equal @a old_value, @a target
35  * @param old_value Original value to compare against.
36  * @param new_value New value to store.
54  * @param value Value to add.
56  * @return Previous value of @a target.
58 static inline atomic_val_t atomic_add(atomic_t *target, atomic_val_t value)  in atomic_add()  argument
60     return __atomic_fetch_add(target, value, __ATOMIC_SEQ_CST);  in atomic_add()
70  * @param value Value to subtract.
72  * @return Previous value of @a target.
75 static inline atomic_val_t atomic_sub(atomic_t *target, atomic_val_t value)  in atomic_sub()  argument
77     return __atomic_fetch_sub(target, value, __ATOMIC_SEQ_CST);  in atomic_sub()
88  * @return Previous value of @a target.
104  * @return Previous value of @a target.
120  * @return Value of @a target.
132  * This routine atomically sets @a target to @a value and returns
133  * the previous value of @a target.
136  * @param value Value to write to @a target.
138  * @return Previous value of @a target.
141 static inline atomic_val_t atomic_set(atomic_t *target, atomic_val_t value)  in atomic_set()  argument
145      * writes value into *ptr, and returns the previous contents of *ptr.  in atomic_set()
147     return __atomic_exchange_n(target, value, __ATOMIC_SEQ_CST);  in atomic_set()
155  * value. (Hence, it is equivalent to atomic_set(target, 0).)
159  * @return Previous value of @a target.
172  * @a target and @a value.
175  * @param value Value to OR.
177  * @return Previous value of @a target.
180 static inline atomic_val_t atomic_or(atomic_t *target, atomic_val_t value)  in atomic_or()  argument
182     return __atomic_fetch_or(target, value, __ATOMIC_SEQ_CST);  in atomic_or()
190  * @a target and @a value.
193  * @param value Value to XOR
195  * @return Previous value of @a target.
198 static inline atomic_val_t atomic_xor(atomic_t *target, atomic_val_t value)  in atomic_xor()  argument
200     return __atomic_fetch_xor(target, value, __ATOMIC_SEQ_CST);  in atomic_xor()
208  * and @a value.
211  * @param value Value to AND.
213  * @return Previous value of @a target.
216 static inline atomic_val_t atomic_and(atomic_t *target, atomic_val_t value)  in atomic_and()  argument
218     return __atomic_fetch_and(target, value, __ATOMIC_SEQ_CST);  in atomic_and()
226  * and @a value. (This operation is equivalent to target = ~(target & value).)
229  * @param value Value to NAND.
231  * @return Previous value of @a target.
234 static inline atomic_val_t atomic_nand(atomic_t *target, atomic_val_t value)  in atomic_nand()  argument
236     return __atomic_fetch_nand(target, value, __ATOMIC_SEQ_CST);  in atomic_nand()
245      * @param i Value to assign to atomic variable.
299      * Atomically clear bit number @a bit of @a target and return its old value.
321      * Atomically set bit number @a bit of @a target and return its old value.