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
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
|
/*
* sysfs.h - sysfs support declarations.
*
* Copyright (C) 2005-2014 Nippon Telegraph and Telephone Corporation.
* Copyright (C) 2014 HGST, Inc., a Western Digital Company.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* Written by Vyacheslav Dubeyko <Vyacheslav.Dubeyko@hgst.com>
*/
#ifndef _NILFS_SYSFS_H
#define _NILFS_SYSFS_H
#include <linux/sysfs.h>
#define NILFS_ROOT_GROUP_NAME "nilfs2"
/*
* struct nilfs_sysfs_dev_subgroups - device subgroup kernel objects
* @sg_superblock_kobj: /sys/fs/<nilfs>/<device>/superblock
* @sg_superblock_kobj_unregister: completion state
* @sg_segctor_kobj: /sys/fs/<nilfs>/<device>/segctor
* @sg_segctor_kobj_unregister: completion state
* @sg_segments_kobj: /sys/fs/<nilfs>/<device>/segments
* @sg_segments_kobj_unregister: completion state
*/
struct nilfs_sysfs_dev_subgroups {
/* /sys/fs/<nilfs>/<device>/superblock */
struct kobject sg_superblock_kobj;
struct completion sg_superblock_kobj_unregister;
/* /sys/fs/<nilfs>/<device>/segctor */
struct kobject sg_segctor_kobj;
struct completion sg_segctor_kobj_unregister;
/* /sys/fs/<nilfs>/<device>/segments */
struct kobject sg_segments_kobj;
struct completion sg_segments_kobj_unregister;
};
#define NILFS_COMMON_ATTR_STRUCT(name) \
struct nilfs_##name##_attr { \
struct attribute attr; \
ssize_t (*show)(struct kobject *, struct attribute *, \
char *); \
ssize_t (*store)(struct kobject *, struct attribute *, \
const char *, size_t); \
};
NILFS_COMMON_ATTR_STRUCT(feature);
#define NILFS_DEV_ATTR_STRUCT(name) \
struct nilfs_##name##_attr { \
struct attribute attr; \
ssize_t (*show)(struct nilfs_##name##_attr *, struct the_nilfs *, \
char *); \
ssize_t (*store)(struct nilfs_##name##_attr *, struct the_nilfs *, \
const char *, size_t); \
};
NILFS_DEV_ATTR_STRUCT(dev);
NILFS_DEV_ATTR_STRUCT(segments);
NILFS_DEV_ATTR_STRUCT(superblock);
NILFS_DEV_ATTR_STRUCT(segctor);
#define NILFS_ATTR(type, name, mode, show, store) \
static struct nilfs_##type##_attr nilfs_##type##_attr_##name = \
__ATTR(name, mode, show, store)
#define NILFS_INFO_ATTR(type, name) \
NILFS_ATTR(type, name, 0444, NULL, NULL)
#define NILFS_RO_ATTR(type, name) \
NILFS_ATTR(type, name, 0444, nilfs_##type##_##name##_show, NULL)
#define NILFS_RW_ATTR(type, name) \
NILFS_ATTR(type, name, 0644, \
nilfs_##type##_##name##_show, \
nilfs_##type##_##name##_store)
#define NILFS_FEATURE_INFO_ATTR(name) \
NILFS_INFO_ATTR(feature, name)
#define NILFS_FEATURE_RO_ATTR(name) \
NILFS_RO_ATTR(feature, name)
#define NILFS_FEATURE_RW_ATTR(name) \
NILFS_RW_ATTR(feature, name)
#define NILFS_DEV_INFO_ATTR(name) \
NILFS_INFO_ATTR(dev, name)
#define NILFS_DEV_RO_ATTR(name) \
NILFS_RO_ATTR(dev, name)
#define NILFS_DEV_RW_ATTR(name) \
NILFS_RW_ATTR(dev, name)
#define NILFS_SEGMENTS_RO_ATTR(name) \
NILFS_RO_ATTR(segments, name)
#define NILFS_SEGMENTS_RW_ATTR(name) \
NILFS_RW_ATTR(segs_info, name)
#define NILFS_SUPERBLOCK_RO_ATTR(name) \
NILFS_RO_ATTR(superblock, name)
#define NILFS_SUPERBLOCK_RW_ATTR(name) \
NILFS_RW_ATTR(superblock, name)
#define NILFS_SEGCTOR_INFO_ATTR(name) \
NILFS_INFO_ATTR(segctor, name)
#define NILFS_SEGCTOR_RO_ATTR(name) \
NILFS_RO_ATTR(segctor, name)
#define NILFS_SEGCTOR_RW_ATTR(name) \
NILFS_RW_ATTR(segctor, name)
#define NILFS_FEATURE_ATTR_LIST(name) \
(&nilfs_feature_attr_##name.attr)
#define NILFS_DEV_ATTR_LIST(name) \
(&nilfs_dev_attr_##name.attr)
#define NILFS_SEGMENTS_ATTR_LIST(name) \
(&nilfs_segments_attr_##name.attr)
#define NILFS_SUPERBLOCK_ATTR_LIST(name) \
(&nilfs_superblock_attr_##name.attr)
#define NILFS_SEGCTOR_ATTR_LIST(name) \
(&nilfs_segctor_attr_##name.attr)
#endif /* _NILFS_SYSFS_H */
|
