projects / mirror_ubuntu-artful-kernel.git / blame
| Commit | Line | Data |
|---|---|---|
| aebe17f6 VD |
1 | /* |
| 2 | * sysfs.h - sysfs support declarations. | |
| 3 | * | |
| 4 | * Copyright (C) 2005-2014 Nippon Telegraph and Telephone Corporation. | |
| 5 | * Copyright (C) 2014 HGST, Inc., a Western Digital Company. | |
| 6 | * | |
| 7 | * This program is free software; you can redistribute it and/or modify | |
| 8 | * it under the terms of the GNU General Public License as published by | |
| 9 | * the Free Software Foundation; either version 2 of the License, or | |
| 10 | * (at your option) any later version. | |
| 11 | * | |
| 12 | * This program is distributed in the hope that it will be useful, | |
| 13 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
| 14 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
| 15 | * GNU General Public License for more details. | |
| 16 | * | |
| 17 | * Written by Vyacheslav Dubeyko <Vyacheslav.Dubeyko@hgst.com> | |
| 18 | */ | |
| 19 | ||
| 20 | #ifndef _NILFS_SYSFS_H | |
| 21 | #define _NILFS_SYSFS_H | |
| 22 | ||
| 23 | #include <linux/sysfs.h> | |
| 24 | ||
| 25 | #define NILFS_ROOT_GROUP_NAME "nilfs2" | |
| 26 | ||
| 27 | #define NILFS_COMMON_ATTR_STRUCT(name) \ | |
| 28 | struct nilfs_##name##_attr { \ | |
| 29 | struct attribute attr; \ | |
| 30 | ssize_t (*show)(struct kobject *, struct attribute *, \ | |
| 31 | char *); \ | |
| 32 | ssize_t (*store)(struct kobject *, struct attribute *, \ | |
| 33 | const char *, size_t); \ | |
| 34 | }; | |
| 35 | ||
| 36 | NILFS_COMMON_ATTR_STRUCT(feature); | |
| 37 | ||
| 38 | #define NILFS_ATTR(type, name, mode, show, store) \ | |
| 39 | static struct nilfs_##type##_attr nilfs_##type##_attr_##name = \ | |
| 40 | __ATTR(name, mode, show, store) | |
| 41 | ||
| 42 | #define NILFS_INFO_ATTR(type, name) \ | |
| 43 | NILFS_ATTR(type, name, 0444, NULL, NULL) | |
| 44 | #define NILFS_RO_ATTR(type, name) \ | |
| 45 | NILFS_ATTR(type, name, 0444, nilfs_##type##_##name##_show, NULL) | |
| 46 | #define NILFS_RW_ATTR(type, name) \ | |
| 47 | NILFS_ATTR(type, name, 0644, \ | |
| 48 | nilfs_##type##_##name##_show, \ | |
| 49 | nilfs_##type##_##name##_store) | |
| 50 | ||
| 51 | #define NILFS_FEATURE_INFO_ATTR(name) \ | |
| 52 | NILFS_INFO_ATTR(feature, name) | |
| 53 | #define NILFS_FEATURE_RO_ATTR(name) \ | |
| 54 | NILFS_RO_ATTR(feature, name) | |
| 55 | #define NILFS_FEATURE_RW_ATTR(name) \ | |
| 56 | NILFS_RW_ATTR(feature, name) | |
| 57 | ||
| 58 | #define NILFS_FEATURE_ATTR_LIST(name) \ | |
| 59 | (&nilfs_feature_attr_##name.attr) | |
| 60 | ||
| 61 | #endif /* _NILFS_SYSFS_H */ |