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linux-next/fs/nilfs2/sysfs.h
Ryusuke Konishi ae98043f5f nilfs2: convert to SPDX license tags
Remove the verbose license text from NILFS2 files and replace them with
SPDX tags.  This does not change the license of any of the code.

Link: http://lkml.kernel.org/r/1535624528-5982-1-git-send-email-konishi.ryusuke@lab.ntt.co.jp
Signed-off-by: Ryusuke Konishi <konishi.ryusuke@lab.ntt.co.jp>
Reviewed-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2018-09-04 16:45:02 -07:00

168 lines
5.2 KiB
C

/* SPDX-License-Identifier: GPL-2.0+ */
/*
* sysfs.h - sysfs support declarations.
*
* Copyright (C) 2005-2014 Nippon Telegraph and Telephone Corporation.
* Copyright (C) 2014 HGST, Inc., a Western Digital Company.
*
* 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_mounted_snapshots_kobj: /sys/fs/<nilfs>/<device>/mounted_snapshots
* @sg_mounted_snapshots_kobj_unregister: completion state
* @sg_checkpoints_kobj: /sys/fs/<nilfs>/<device>/checkpoints
* @sg_checkpoints_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>/mounted_snapshots */
struct kobject sg_mounted_snapshots_kobj;
struct completion sg_mounted_snapshots_kobj_unregister;
/* /sys/fs/<nilfs>/<device>/checkpoints */
struct kobject sg_checkpoints_kobj;
struct completion sg_checkpoints_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(mounted_snapshots);
NILFS_DEV_ATTR_STRUCT(checkpoints);
NILFS_DEV_ATTR_STRUCT(superblock);
NILFS_DEV_ATTR_STRUCT(segctor);
#define NILFS_CP_ATTR_STRUCT(name) \
struct nilfs_##name##_attr { \
struct attribute attr; \
ssize_t (*show)(struct nilfs_##name##_attr *, struct nilfs_root *, \
char *); \
ssize_t (*store)(struct nilfs_##name##_attr *, struct nilfs_root *, \
const char *, size_t); \
}
NILFS_CP_ATTR_STRUCT(snapshot);
#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_MOUNTED_SNAPSHOTS_RO_ATTR(name) \
NILFS_RO_ATTR(mounted_snapshots, name)
#define NILFS_CHECKPOINTS_RO_ATTR(name) \
NILFS_RO_ATTR(checkpoints, name)
#define NILFS_CHECKPOINTS_RW_ATTR(name) \
NILFS_RW_ATTR(checkpoints, name)
#define NILFS_SNAPSHOT_INFO_ATTR(name) \
NILFS_INFO_ATTR(snapshot, name)
#define NILFS_SNAPSHOT_RO_ATTR(name) \
NILFS_RO_ATTR(snapshot, name)
#define NILFS_SNAPSHOT_RW_ATTR(name) \
NILFS_RW_ATTR(snapshot, 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_MOUNTED_SNAPSHOTS_ATTR_LIST(name) \
(&nilfs_mounted_snapshots_attr_##name.attr)
#define NILFS_CHECKPOINTS_ATTR_LIST(name) \
(&nilfs_checkpoints_attr_##name.attr)
#define NILFS_SNAPSHOT_ATTR_LIST(name) \
(&nilfs_snapshot_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 */