1 /* SPDX-License-Identifier: GPL-2.0 */
14 #define local_read(l)	atomic_long_read(&(l)->a)  argument
15 #define local_set(l,i)	atomic_long_set(&(l)->a, (i))  argument
16 #define local_inc(l)	atomic_long_inc(&(l)->a)  argument
17 #define local_dec(l)	atomic_long_dec(&(l)->a)  argument
18 #define local_add(i,l)	atomic_long_add((i),(&(l)->a))  argument
19 #define local_sub(i,l)	atomic_long_sub((i),(&(l)->a))  argument
21 static __inline__ long local_add_return(long i, local_t * l)  in local_add_return()  argument
33 	:"=&r" (temp), "=m" (l->a.counter), "=&r" (result)  in local_add_return()
34 	:"Ir" (i), "m" (l->a.counter) : "memory");  in local_add_return()
38 static __inline__ long local_sub_return(long i, local_t * l)  in local_sub_return()  argument
50 	:"=&r" (temp), "=m" (l->a.counter), "=&r" (result)  in local_sub_return()
51 	:"Ir" (i), "m" (l->a.counter) : "memory");  in local_sub_return()
55 static __inline__ long local_cmpxchg(local_t *l, long old, long new)  in local_cmpxchg()  argument
57 	return cmpxchg_local(&l->a.counter, old, new);  in local_cmpxchg()
60 static __inline__ bool local_try_cmpxchg(local_t *l, long *old, long new)  in local_try_cmpxchg()  argument
62 	return try_cmpxchg_local(&l->a.counter, (s64 *)old, new);  in local_try_cmpxchg()
65 #define local_xchg(l, n) (xchg_local(&((l)->a.counter), (n)))  argument
68  * local_add_unless - add unless the number is already a given value
69  * @l: pointer of type local_t
70  * @a: the amount to add to l...
71  * @u: ...unless l is equal to u.
73  * Atomically adds @a to @l, if @v was not already @u.
77 local_add_unless(local_t *l, long a, long u)  in local_add_unless()  argument
79 	long c = local_read(l);  in local_add_unless()
84 	} while (!local_try_cmpxchg(l, &c, c + a));  in local_add_unless()
89 #define local_inc_not_zero(l) local_add_unless((l), 1, 0)  argument
91 #define local_add_negative(a, l) (local_add_return((a), (l)) < 0)  argument
93 #define local_dec_return(l) local_sub_return(1,(l))  argument
95 #define local_inc_return(l) local_add_return(1,(l))  argument
97 #define local_sub_and_test(i,l) (local_sub_return((i), (l)) == 0)  argument
99 #define local_inc_and_test(l) (local_add_return(1, (l)) == 0)  argument
101 #define local_dec_and_test(l) (local_sub_return(1, (l)) == 0)  argument
104 #define __local_inc(l)		((l)->a.counter++)  argument
105 #define __local_dec(l)		((l)->a.counter++)  argument
106 #define __local_add(i,l)	((l)->a.counter+=(i))  argument
107 #define __local_sub(i,l)	((l)->a.counter-=(i))  argument