1992 	struct btrfs_super_block *disk_super = fs_info->super_copy;  in btrfs_replay_log()  local
1993 	u64 bytenr = btrfs_super_log_root(disk_super);  in btrfs_replay_log()
1994 	int level = btrfs_super_log_root_level(disk_super);  in btrfs_replay_log()
3183 	struct btrfs_super_block *disk_super = fs_info->super_copy;  in btrfs_check_features()  local
3184 	u64 incompat = btrfs_super_incompat_flags(disk_super);  in btrfs_check_features()
3185 	const u64 compat_ro = btrfs_super_compat_ro_flags(disk_super);  in btrfs_check_features()
3217 	if (btrfs_super_nodesize(disk_super) > PAGE_SIZE)  in btrfs_check_features()
3232 	if (compat_ro_unsupp && btrfs_super_log_root(disk_super) &&  in btrfs_check_features()
3268 	btrfs_set_super_incompat_flags(disk_super, incompat);  in btrfs_check_features()
3290 	struct btrfs_super_block *disk_super;  in open_ctree()  local
3323 	disk_super = btrfs_read_disk_super(fs_devices->latest_dev->bdev, 0, false);  in open_ctree()
3324 	if (IS_ERR(disk_super)) {  in open_ctree()
3325 		ret = PTR_ERR(disk_super);  in open_ctree()
3329 	btrfs_info(fs_info, "first mount of filesystem %pU", disk_super->fsid);  in open_ctree()
3334 	csum_type = btrfs_super_csum_type(disk_super);  in open_ctree()
3339 		btrfs_release_disk_super(disk_super);  in open_ctree()
3343 	fs_info->csum_size = btrfs_super_csum_size(disk_super);  in open_ctree()
3352 	if (btrfs_check_super_csum(fs_info, disk_super)) {  in open_ctree()
3355 		btrfs_release_disk_super(disk_super);  in open_ctree()
3364 	memcpy(fs_info->super_copy, disk_super, sizeof(*fs_info->super_copy));  in open_ctree()
3365 	btrfs_release_disk_super(disk_super);  in open_ctree()
3367 	disk_super = fs_info->super_copy;  in open_ctree()
3379 	if (!btrfs_super_root(disk_super)) {  in open_ctree()
3386 	if (btrfs_super_flags(disk_super) & BTRFS_SUPER_FLAG_ERROR)  in open_ctree()
3394 	nodesize = btrfs_super_nodesize(disk_super);  in open_ctree()
3395 	sectorsize = btrfs_super_sectorsize(disk_super);  in open_ctree()
3429 	if (btrfs_super_incompat_flags(disk_super) & BTRFS_FEATURE_INCOMPAT_REMAP_TREE) {  in open_ctree()
3452 	sb->s_bdi->ra_pages *= btrfs_super_num_devices(disk_super);  in open_ctree()
3468 	generation = btrfs_super_chunk_root_generation(disk_super);  in open_ctree()
3469 	level = btrfs_super_chunk_root_level(disk_super);  in open_ctree()
3470 	ret = load_super_root(chunk_root, btrfs_super_chunk_root(disk_super),  in open_ctree()
3526 	    fs_info->generation == btrfs_super_uuid_tree_generation(disk_super))  in open_ctree()
3634 	if (btrfs_super_log_root(disk_super) != 0 &&  in open_ctree()
3662 	     fs_info->generation != btrfs_super_uuid_tree_generation(disk_super))) {  in open_ctree()
3778 		struct btrfs_super_block *disk_super;  in write_dev_supers()  local
3813 		disk_super = folio_address(folio) + offset;  in write_dev_supers()
3814 		memcpy(disk_super, sb, BTRFS_SUPER_INFO_SIZE);  in write_dev_supers()