diff options
| -rw-r--r-- | fs/btrfs/sysfs.c | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/fs/btrfs/sysfs.c b/fs/btrfs/sysfs.c index 279d9262b676..8424f5d0e5ed 100644 --- a/fs/btrfs/sysfs.c +++ b/fs/btrfs/sysfs.c @@ -854,6 +854,15 @@ static ssize_t btrfs_exclusive_operation_show(struct kobject *kobj, } BTRFS_ATTR(, exclusive_operation, btrfs_exclusive_operation_show); +static ssize_t btrfs_generation_show(struct kobject *kobj, + struct kobj_attribute *a, char *buf) +{ + struct btrfs_fs_info *fs_info = to_fs_info(kobj); + + return scnprintf(buf, PAGE_SIZE, "%llu\n", fs_info->generation); +} +BTRFS_ATTR(, generation, btrfs_generation_show); + static const struct attribute *btrfs_attrs[] = { BTRFS_ATTR_PTR(, label), BTRFS_ATTR_PTR(, nodesize), @@ -863,6 +872,7 @@ static const struct attribute *btrfs_attrs[] = { BTRFS_ATTR_PTR(, metadata_uuid), BTRFS_ATTR_PTR(, checksum), BTRFS_ATTR_PTR(, exclusive_operation), + BTRFS_ATTR_PTR(, generation), NULL, }; |