diff options
Diffstat (limited to 'fs/nilfs2/sysfs.c')
| -rw-r--r-- | fs/nilfs2/sysfs.c | 36 |
1 files changed, 35 insertions, 1 deletions
diff --git a/fs/nilfs2/sysfs.c b/fs/nilfs2/sysfs.c index 5cc735fcc1d5..fc0c961d486a 100644 --- a/fs/nilfs2/sysfs.c +++ b/fs/nilfs2/sysfs.c @@ -112,6 +112,32 @@ void nilfs_sysfs_delete_##name##_group(struct the_nilfs *nilfs) \ } /************************************************************************ + * NILFS mounted snapshots attrs * + ************************************************************************/ + +static const char mounted_snapshots_readme_str[] = + "The mounted_snapshots group contains group for\n" + "every mounted snapshot.\n"; + +static ssize_t +nilfs_mounted_snapshots_README_show(struct nilfs_mounted_snapshots_attr *attr, + struct the_nilfs *nilfs, char *buf) +{ + return snprintf(buf, PAGE_SIZE, mounted_snapshots_readme_str); +} + +NILFS_MOUNTED_SNAPSHOTS_RO_ATTR(README); + +static struct attribute *nilfs_mounted_snapshots_attrs[] = { + NILFS_MOUNTED_SNAPSHOTS_ATTR_LIST(README), + NULL, +}; + +NILFS_DEV_INT_GROUP_OPS(mounted_snapshots, dev); +NILFS_DEV_INT_GROUP_TYPE(mounted_snapshots, dev); +NILFS_DEV_INT_GROUP_FNS(mounted_snapshots, dev); + +/************************************************************************ * NILFS checkpoints attrs * ************************************************************************/ @@ -866,10 +892,14 @@ int nilfs_sysfs_create_device_group(struct super_block *sb) if (err) goto free_dev_subgroups; - err = nilfs_sysfs_create_checkpoints_group(nilfs); + err = nilfs_sysfs_create_mounted_snapshots_group(nilfs); if (err) goto cleanup_dev_kobject; + err = nilfs_sysfs_create_checkpoints_group(nilfs); + if (err) + goto delete_mounted_snapshots_group; + err = nilfs_sysfs_create_segments_group(nilfs); if (err) goto delete_checkpoints_group; @@ -893,6 +923,9 @@ delete_segments_group: delete_checkpoints_group: nilfs_sysfs_delete_checkpoints_group(nilfs); +delete_mounted_snapshots_group: + nilfs_sysfs_delete_mounted_snapshots_group(nilfs); + cleanup_dev_kobject: kobject_del(&nilfs->ns_dev_kobj); @@ -905,6 +938,7 @@ failed_create_device_group: void nilfs_sysfs_delete_device_group(struct the_nilfs *nilfs) { + nilfs_sysfs_delete_mounted_snapshots_group(nilfs); nilfs_sysfs_delete_checkpoints_group(nilfs); nilfs_sysfs_delete_segments_group(nilfs); nilfs_sysfs_delete_superblock_group(nilfs); |