fs/btrfs/sysfs.c

769 	if (!fs_info->fs_devices)
788 	val = min(mult_perc(fs_info->fs_devices->total_rw_bytes, 10), val);
1150 	return sysfs_emit(buf, "%pU\n", fs_info->fs_devices->metadata_uuid);
1221 	return sysfs_emit(buf, "%d\n", fs_info->fs_devices->temp_fsid);
1230 	struct btrfs_fs_devices *fs_devices = to_fs_devs(kobj);
1231 	const enum btrfs_read_policy policy = READ_ONCE(fs_devices->read_policy);
1255 	struct btrfs_fs_devices *fs_devices = to_fs_devs(kobj);
1260 			if (i != READ_ONCE(fs_devices->read_policy)) {
1261 				WRITE_ONCE(fs_devices->read_policy, i);
1262 				btrfs_info(fs_devices->fs_info,
1314 	struct btrfs_fs_devices *fs_devices = to_fs_devs(kobj);
1316 	switch (READ_ONCE(fs_devices->offload_csum_mode)) {
1333 	struct btrfs_fs_devices *fs_devices = to_fs_devs(kobj);
1339 		WRITE_ONCE(fs_devices->offload_csum_mode,
1342 		WRITE_ONCE(fs_devices->offload_csum_mode, BTRFS_OFFLOAD_CSUM_AUTO);
1457 				ret = sysfs_merge_group(&fs_info->fs_devices->fsid_kobj,
1462 				sysfs_unmerge_group(&fs_info->fs_devices->fsid_kobj,
1506 static void btrfs_sysfs_remove_fs_devices(struct btrfs_fs_devices *fs_devices)
1511 	list_for_each_entry(device, &fs_devices->devices, dev_list)
1514 	list_for_each_entry(seed, &fs_devices->seed_list, seed_list) {
1522 	struct kobject *fsid_kobj = &fs_info->fs_devices->fsid_kobj;
1546 	btrfs_sysfs_remove_fs_devices(fs_info->fs_devices);
1754 	 * Seed fs_devices devices_kobj aren't used, fetch kobject from the
1755 	 * fs_info::fs_devices.
1757 	devices_kobj = device->fs_info->fs_devices->devices_kobj;
1860 	return sysfs_emit(buf, "%pU\n", device->fs_devices->fsid);
1932 	 * Make sure we use the fs_info::fs_devices to fetch the kobjects even
1933 	 * for the seed fs_devices
1935 	devices_kobj = device->fs_info->fs_devices->devices_kobj;
1936 	devinfo_kobj = device->fs_info->fs_devices->devinfo_kobj;
1969 static int btrfs_sysfs_add_fs_devices(struct btrfs_fs_devices *fs_devices)
1975 	list_for_each_entry(device, &fs_devices->devices, dev_list) {
1981 	list_for_each_entry(seed, &fs_devices->seed_list, seed_list) {
1992 	btrfs_sysfs_remove_fs_devices(fs_devices);
2007 void btrfs_sysfs_update_sprout_fsid(struct btrfs_fs_devices *fs_devices)
2016 	snprintf(fsid_buf, BTRFS_UUID_UNPARSED_SIZE, "%pU", fs_devices->fsid);
2017 	if (kobject_rename(&fs_devices->fsid_kobj, fsid_buf))
2018 		btrfs_warn(fs_devices->fs_info,
2029 		btrfs_warn(device->fs_devices->fs_info,
2080 	struct btrfs_fs_devices *fs_devs = fs_info->fs_devices;
2379 	struct kobject *fsid_kobj = &fs_info->fs_devices->fsid_kobj;
2437 	fsid_kobj = &fs_info->fs_devices->fsid_kobj;
2445 			   fs_info->fs_devices->fsid, ret);