diff options
| author | Vyacheslav Dubeyko | 2014-08-08 23:20:39 +0200 |
|---|---|---|
| committer | Linus Torvalds | 2014-08-09 00:57:20 +0200 |
| commit | da7141fb78db915680616e15677539fc8140cf53 (patch) | |
| tree | fcec7b80ddf5bf6ff0b98b1ca7fa7610bf309432 /fs/nilfs2/sysfs.h | |
| parent | nilfs2: add /sys/fs/nilfs2/features group (diff) | |
| download | kernel-qcow2-linux-da7141fb78db915680616e15677539fc8140cf53.tar.gz kernel-qcow2-linux-da7141fb78db915680616e15677539fc8140cf53.tar.xz kernel-qcow2-linux-da7141fb78db915680616e15677539fc8140cf53.zip | |
nilfs2: add /sys/fs/nilfs2/<device> group
This patch adds creation of /sys/fs/nilfs2/<device> group.
The <device> group contains attributes that describe file
system partition's details:
(1) revision - show NILFS file system revision.
(2) blocksize - show volume block size in bytes.
(3) device_size - show volume size in bytes.
(4) free_blocks - show count of free blocks on volume.
(5) uuid - show volume's UUID.
(6) volume_name - show volume's name.
Signed-off-by: Vyacheslav Dubeyko <Vyacheslav.Dubeyko@hgst.com>
Cc: Vyacheslav Dubeyko <slava@dubeyko.com>
Cc: Ryusuke Konishi <konishi.ryusuke@lab.ntt.co.jp>
Cc: Michael L. Semon <mlsemon35@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'fs/nilfs2/sysfs.h')
| -rw-r--r-- | fs/nilfs2/sysfs.h | 20 |
1 files changed, 20 insertions, 0 deletions
diff --git a/fs/nilfs2/sysfs.h b/fs/nilfs2/sysfs.h index 0aed24661052..2353b28c2796 100644 --- a/fs/nilfs2/sysfs.h +++ b/fs/nilfs2/sysfs.h @@ -35,6 +35,17 @@ struct nilfs_##name##_attr { \ 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); + #define NILFS_ATTR(type, name, mode, show, store) \ static struct nilfs_##type##_attr nilfs_##type##_attr_##name = \ __ATTR(name, mode, show, store) @@ -55,7 +66,16 @@ NILFS_COMMON_ATTR_STRUCT(feature); #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_FEATURE_ATTR_LIST(name) \ (&nilfs_feature_attr_##name.attr) +#define NILFS_DEV_ATTR_LIST(name) \ + (&nilfs_dev_attr_##name.attr) #endif /* _NILFS_SYSFS_H */ |