1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
|
#ifndef _ASM_LOCAL_H
#define _ASM_LOCAL_H
#include <linux/config.h>
#include <linux/percpu.h>
#include <asm/atomic.h>
#ifdef CONFIG_32BIT
typedef atomic_t local_t;
#define LOCAL_INIT(i) ATOMIC_INIT(i)
#define local_read(v) atomic_read(v)
#define local_set(v,i) atomic_set(v,i)
#define local_inc(v) atomic_inc(v)
#define local_dec(v) atomic_dec(v)
#define local_add(i, v) atomic_add(i, v)
#define local_sub(i, v) atomic_sub(i, v)
#endif
#ifdef CONFIG_64BIT
typedef atomic64_t local_t;
#define LOCAL_INIT(i) ATOMIC64_INIT(i)
#define local_read(v) atomic64_read(v)
#define local_set(v,i) atomic64_set(v,i)
#define local_inc(v) atomic64_inc(v)
#define local_dec(v) atomic64_dec(v)
#define local_add(i, v) atomic64_add(i, v)
#define local_sub(i, v) atomic64_sub(i, v)
#endif
#define __local_inc(v) ((v)->counter++)
#define __local_dec(v) ((v)->counter--)
#define __local_add(i,v) ((v)->counter+=(i))
#define __local_sub(i,v) ((v)->counter-=(i))
/*
* Use these for per-cpu local_t variables: on some archs they are
* much more efficient than these naive implementations. Note they take
* a variable, not an address.
*/
#define cpu_local_read(v) local_read(&__get_cpu_var(v))
#define cpu_local_set(v, i) local_set(&__get_cpu_var(v), (i))
#define cpu_local_inc(v) local_inc(&__get_cpu_var(v))
#define cpu_local_dec(v) local_dec(&__get_cpu_var(v))
#define cpu_local_add(i, v) local_add((i), &__get_cpu_var(v))
#define cpu_local_sub(i, v) local_sub((i), &__get_cpu_var(v))
#define __cpu_local_inc(v) __local_inc(&__get_cpu_var(v))
#define __cpu_local_dec(v) __local_dec(&__get_cpu_var(v))
#define __cpu_local_add(i, v) __local_add((i), &__get_cpu_var(v))
#define __cpu_local_sub(i, v) __local_sub((i), &__get_cpu_var(v))
#endif /* _ASM_LOCAL_H */
|
