diff options
Diffstat (limited to 'fs/btrfs/sysfs.c')
| -rw-r--r-- | fs/btrfs/sysfs.c | 15 |
1 files changed, 15 insertions, 0 deletions
diff --git a/fs/btrfs/sysfs.c b/fs/btrfs/sysfs.c index 6eb1c50fa98c..a99d1f415a7f 100644 --- a/fs/btrfs/sysfs.c +++ b/fs/btrfs/sysfs.c @@ -360,11 +360,26 @@ static ssize_t supported_rescue_options_show(struct kobject *kobj, BTRFS_ATTR(static_feature, supported_rescue_options, supported_rescue_options_show); +static ssize_t supported_sectorsizes_show(struct kobject *kobj, + struct kobj_attribute *a, + char *buf) +{ + ssize_t ret = 0; + + /* Only sectorsize == PAGE_SIZE is now supported */ + ret += scnprintf(buf + ret, PAGE_SIZE - ret, "%lu\n", PAGE_SIZE); + + return ret; +} +BTRFS_ATTR(static_feature, supported_sectorsizes, + supported_sectorsizes_show); + static struct attribute *btrfs_supported_static_feature_attrs[] = { BTRFS_ATTR_PTR(static_feature, rmdir_subvol), BTRFS_ATTR_PTR(static_feature, supported_checksums), BTRFS_ATTR_PTR(static_feature, send_stream_version), BTRFS_ATTR_PTR(static_feature, supported_rescue_options), + BTRFS_ATTR_PTR(static_feature, supported_sectorsizes), NULL }; |