788 	struct btrfs_super_block *disk_super;  in btrfs_open_one_device()  local
802 	disk_super = (struct btrfs_super_block *)bh->b_data;  in btrfs_open_one_device()
803 	devid = btrfs_stack_device_id(&disk_super->dev_item);  in btrfs_open_one_device()
807 	if (memcmp(device->uuid, disk_super->dev_item.uuid, BTRFS_UUID_SIZE))  in btrfs_open_one_device()
810 	device->generation = btrfs_super_generation(disk_super);  in btrfs_open_one_device()
812 	if (btrfs_super_flags(disk_super) & BTRFS_SUPER_FLAG_SEEDING) {  in btrfs_open_one_device()
813 		if (btrfs_super_incompat_flags(disk_super) &  in btrfs_open_one_device()
859 					struct btrfs_super_block *disk_super)  in find_fsid_inprogress()  argument
866 		    memcmp(fs_devices->metadata_uuid, disk_super->fsid,  in find_fsid_inprogress()
877 					struct btrfs_super_block *disk_super)  in find_fsid_changed()  argument
889 		    memcmp(fs_devices->metadata_uuid, disk_super->metadata_uuid,  in find_fsid_changed()
891 		    memcmp(fs_devices->fsid, disk_super->fsid,  in find_fsid_changed()
907 			   struct btrfs_super_block *disk_super,  in device_list_add()  argument
913 	u64 found_transid = btrfs_super_generation(disk_super);  in device_list_add()
914 	u64 devid = btrfs_stack_device_id(&disk_super->dev_item);  in device_list_add()
915 	bool has_metadata_uuid = (btrfs_super_incompat_flags(disk_super) &  in device_list_add()
917 	bool fsid_change_in_progress = (btrfs_super_flags(disk_super) &  in device_list_add()
928 			fs_devices = find_fsid_inprogress(disk_super);  in device_list_add()
930 				fs_devices = find_fsid(disk_super->fsid, NULL);  in device_list_add()
932 			fs_devices = find_fsid_changed(disk_super);  in device_list_add()
935 		fs_devices = find_fsid(disk_super->fsid,  in device_list_add()
936 				       disk_super->metadata_uuid);  in device_list_add()
938 		fs_devices = find_fsid(disk_super->fsid, NULL);  in device_list_add()
944 			fs_devices = alloc_fs_devices(disk_super->fsid,  in device_list_add()
945 						      disk_super->metadata_uuid);  in device_list_add()
947 			fs_devices = alloc_fs_devices(disk_super->fsid, NULL);  in device_list_add()
961 				disk_super->dev_item.uuid, NULL, false);  in device_list_add()
970 			memcpy(fs_devices->fsid, disk_super->fsid,  in device_list_add()
973 					disk_super->metadata_uuid, BTRFS_FSID_SIZE);  in device_list_add()
986 					    disk_super->dev_item.uuid);  in device_list_add()
1007 		if (disk_super->label[0])  in device_list_add()
1009 				disk_super->label, devid, found_transid, path);  in device_list_add()
1012 				disk_super->fsid, devid, found_transid, path);  in device_list_add()
1071 					disk_super->fsid, devid,  in device_list_add()
1078 				disk_super->fsid, devid,  in device_list_add()
1107 	fs_devices->total_devices = btrfs_super_num_devices(disk_super);  in device_list_add()
1396 				 struct btrfs_super_block **disk_super)  in btrfs_read_disk_super()  argument
1406 	if (sizeof(**disk_super) > PAGE_SIZE)  in btrfs_read_disk_super()
1411 	if ((bytenr + sizeof(**disk_super) - 1) >> PAGE_SHIFT != index)  in btrfs_read_disk_super()
1424 	*disk_super = p + offset_in_page(bytenr);  in btrfs_read_disk_super()
1426 	if (btrfs_super_bytenr(*disk_super) != bytenr ||  in btrfs_read_disk_super()
1427 	    btrfs_super_magic(*disk_super) != BTRFS_MAGIC) {  in btrfs_read_disk_super()
1432 	if ((*disk_super)->label[0] &&  in btrfs_read_disk_super()
1433 		(*disk_super)->label[BTRFS_LABEL_SIZE - 1])  in btrfs_read_disk_super()
1434 		(*disk_super)->label[BTRFS_LABEL_SIZE - 1] = '\0';  in btrfs_read_disk_super()
1458 	struct btrfs_super_block *disk_super;  in btrfs_scan_one_device()  local
1480 	if (btrfs_read_disk_super(bdev, bytenr, &page, &disk_super)) {  in btrfs_scan_one_device()
1485 	device = device_list_add(path, disk_super, &new_device_added);  in btrfs_scan_one_device()
2347 	struct btrfs_super_block *disk_super;  in btrfs_find_device_by_path()  local
2358 	disk_super = (struct btrfs_super_block *)bh->b_data;  in btrfs_find_device_by_path()
2359 	devid = btrfs_stack_device_id(&disk_super->dev_item);  in btrfs_find_device_by_path()
2360 	dev_uuid = disk_super->dev_item.uuid;  in btrfs_find_device_by_path()
2363 					   disk_super->metadata_uuid, true);  in btrfs_find_device_by_path()
2366 					   disk_super->fsid, true);  in btrfs_find_device_by_path()
2417 	struct btrfs_super_block *disk_super = fs_info->super_copy;  in btrfs_prepare_sprout()  local
2462 	memcpy(disk_super->fsid, fs_devices->fsid, BTRFS_FSID_SIZE);  in btrfs_prepare_sprout()
2465 	super_flags = btrfs_super_flags(disk_super) &  in btrfs_prepare_sprout()
2467 	btrfs_set_super_flags(disk_super, super_flags);  in btrfs_prepare_sprout()
7566 	struct btrfs_super_block *disk_super;  in btrfs_scratch_superblocks()  local
7578 		disk_super = (struct btrfs_super_block *)bh->b_data;  in btrfs_scratch_superblocks()
7580 		memset(&disk_super->magic, 0, sizeof(disk_super->magic));  in btrfs_scratch_superblocks()