454 			   struct btrfs_super_block *disk_super,  in device_list_add()  argument
461 	u64 found_transid = btrfs_super_generation(disk_super);  in device_list_add()
463 	fs_devices = find_fsid(disk_super->fsid);  in device_list_add()
465 		fs_devices = alloc_fs_devices(disk_super->fsid);  in device_list_add()
474 				       disk_super->dev_item.uuid);  in device_list_add()
482 					    disk_super->dev_item.uuid);  in device_list_add()
782 	struct btrfs_super_block *disk_super;  in __btrfs_open_devices()  local
800 		disk_super = (struct btrfs_super_block *)bh->b_data;  in __btrfs_open_devices()
801 		devid = btrfs_stack_device_id(&disk_super->dev_item);  in __btrfs_open_devices()
805 		if (memcmp(device->uuid, disk_super->dev_item.uuid,  in __btrfs_open_devices()
809 		device->generation = btrfs_super_generation(disk_super);  in __btrfs_open_devices()
814 		if (btrfs_super_flags(disk_super) & BTRFS_SUPER_FLAG_SEEDING) {  in __btrfs_open_devices()
883 	struct btrfs_super_block *disk_super;  in btrfs_scan_one_device()  local
916 	if (sizeof(*disk_super) > PAGE_CACHE_SIZE)  in btrfs_scan_one_device()
921 	if ((bytenr + sizeof(*disk_super) - 1) >> PAGE_CACHE_SHIFT != index)  in btrfs_scan_one_device()
934 	disk_super = p + (bytenr & ~PAGE_CACHE_MASK);  in btrfs_scan_one_device()
936 	if (btrfs_super_bytenr(disk_super) != bytenr ||  in btrfs_scan_one_device()
937 	    btrfs_super_magic(disk_super) != BTRFS_MAGIC)  in btrfs_scan_one_device()
940 	devid = btrfs_stack_device_id(&disk_super->dev_item);  in btrfs_scan_one_device()
941 	transid = btrfs_super_generation(disk_super);  in btrfs_scan_one_device()
942 	total_devices = btrfs_super_num_devices(disk_super);  in btrfs_scan_one_device()
944 	ret = device_list_add(path, disk_super, devid, fs_devices_ret);  in btrfs_scan_one_device()
946 		if (disk_super->label[0]) {  in btrfs_scan_one_device()
947 			if (disk_super->label[BTRFS_LABEL_SIZE - 1])  in btrfs_scan_one_device()
948 				disk_super->label[BTRFS_LABEL_SIZE - 1] = '\0';  in btrfs_scan_one_device()
949 			printk(KERN_INFO "BTRFS: device label %s ", disk_super->label);  in btrfs_scan_one_device()
951 			printk(KERN_INFO "BTRFS: device fsid %pU ", disk_super->fsid);  in btrfs_scan_one_device()
1552 	struct btrfs_super_block *disk_super;  in btrfs_rm_device()  local
1621 		disk_super = NULL;  in btrfs_rm_device()
1633 		disk_super = (struct btrfs_super_block *)bh->b_data;  in btrfs_rm_device()
1634 		devid = btrfs_stack_device_id(&disk_super->dev_item);  in btrfs_rm_device()
1635 		dev_uuid = disk_super->dev_item.uuid;  in btrfs_rm_device()
1637 					   disk_super->fsid);  in btrfs_rm_device()
1741 	if (clear_super && disk_super) {  in btrfs_rm_device()
1748 		memset(&disk_super->magic, 0, sizeof(disk_super->magic));  in btrfs_rm_device()
1768 			disk_super = (struct btrfs_super_block *)bh->b_data;  in btrfs_rm_device()
1770 			if (btrfs_super_bytenr(disk_super) != bytenr ||  in btrfs_rm_device()
1771 				btrfs_super_magic(disk_super) != BTRFS_MAGIC) {  in btrfs_rm_device()
1774 			memset(&disk_super->magic, 0,  in btrfs_rm_device()
1775 						sizeof(disk_super->magic));  in btrfs_rm_device()
1903 	struct btrfs_super_block *disk_super;  in btrfs_find_device_by_path()  local
1914 	disk_super = (struct btrfs_super_block *)bh->b_data;  in btrfs_find_device_by_path()
1915 	devid = btrfs_stack_device_id(&disk_super->dev_item);  in btrfs_find_device_by_path()
1916 	dev_uuid = disk_super->dev_item.uuid;  in btrfs_find_device_by_path()
1918 				    disk_super->fsid);  in btrfs_find_device_by_path()
1966 	struct btrfs_super_block *disk_super = root->fs_info->super_copy;  in btrfs_prepare_sprout()  local
2011 	memcpy(disk_super->fsid, fs_devices->fsid, BTRFS_FSID_SIZE);  in btrfs_prepare_sprout()
2014 	super_flags = btrfs_super_flags(disk_super) &  in btrfs_prepare_sprout()
2016 	btrfs_set_super_flags(disk_super, super_flags);  in btrfs_prepare_sprout()
6678 	struct btrfs_super_block *disk_super;  in btrfs_scratch_superblock()  local
6683 	disk_super = (struct btrfs_super_block *)bh->b_data;  in btrfs_scratch_superblock()
6685 	memset(&disk_super->magic, 0, sizeof(disk_super->magic));  in btrfs_scratch_superblock()