2041 	struct btrfs_super_block *disk_super = fs_info->super_copy;  in btrfs_replay_log()  local
2042 	u64 bytenr = btrfs_super_log_root(disk_super);  in btrfs_replay_log()
2043 	int level = btrfs_super_log_root_level(disk_super);  in btrfs_replay_log()
3062 	struct btrfs_super_block *disk_super = fs_info->super_copy;  in btrfs_check_features()  local
3063 	u64 incompat = btrfs_super_incompat_flags(disk_super);  in btrfs_check_features()
3064 	const u64 compat_ro = btrfs_super_compat_ro_flags(disk_super);  in btrfs_check_features()
3096 	if (btrfs_super_nodesize(disk_super) > PAGE_SIZE)  in btrfs_check_features()
3111 	if (compat_ro_unsupp && btrfs_super_log_root(disk_super) &&  in btrfs_check_features()
3147 	btrfs_set_super_incompat_flags(disk_super, incompat);  in btrfs_check_features()
3162 	struct btrfs_super_block *disk_super;  in open_ctree()  local
3194 	disk_super = btrfs_read_dev_super(fs_devices->latest_dev->bdev);  in open_ctree()
3195 	if (IS_ERR(disk_super)) {  in open_ctree()
3196 		ret = PTR_ERR(disk_super);  in open_ctree()
3204 	csum_type = btrfs_super_csum_type(disk_super);  in open_ctree()
3209 		btrfs_release_disk_super(disk_super);  in open_ctree()
3213 	fs_info->csum_size = btrfs_super_csum_size(disk_super);  in open_ctree()
3217 		btrfs_release_disk_super(disk_super);  in open_ctree()
3225 	if (btrfs_check_super_csum(fs_info, disk_super)) {  in open_ctree()
3228 		btrfs_release_disk_super(disk_super);  in open_ctree()
3237 	memcpy(fs_info->super_copy, disk_super, sizeof(*fs_info->super_copy));  in open_ctree()
3238 	btrfs_release_disk_super(disk_super);  in open_ctree()
3240 	disk_super = fs_info->super_copy;  in open_ctree()
3243 	features = btrfs_super_flags(disk_super);  in open_ctree()
3246 		btrfs_set_super_flags(disk_super, features);  in open_ctree()
3261 	if (!btrfs_super_root(disk_super)) {  in open_ctree()
3268 	if (btrfs_super_flags(disk_super) & BTRFS_SUPER_FLAG_ERROR)  in open_ctree()
3279 	nodesize = btrfs_super_nodesize(disk_super);  in open_ctree()
3280 	sectorsize = btrfs_super_sectorsize(disk_super);  in open_ctree()
3329 	sb->s_bdi->ra_pages *= btrfs_super_num_devices(disk_super);  in open_ctree()
3344 	generation = btrfs_super_chunk_root_generation(disk_super);  in open_ctree()
3345 	level = btrfs_super_chunk_root_level(disk_super);  in open_ctree()
3346 	ret = load_super_root(chunk_root, btrfs_super_chunk_root(disk_super),  in open_ctree()
3402 	    fs_info->generation == btrfs_super_uuid_tree_generation(disk_super))  in open_ctree()
3532 	if (btrfs_super_log_root(disk_super) != 0 &&  in open_ctree()
3560 	     fs_info->generation != btrfs_super_uuid_tree_generation(disk_super))) {  in open_ctree()
3763 		struct btrfs_super_block *disk_super;  in write_dev_supers()  local
3799 		disk_super = page_address(page);  in write_dev_supers()
3800 		memcpy(disk_super, sb, BTRFS_SUPER_INFO_SIZE);  in write_dev_supers()