81 	struct btrfs_fs_info *fs_info = kzalloc(sizeof(struct btrfs_fs_info),  in btrfs_alloc_dummy_fs_info()  local
84 	if (!fs_info)  in btrfs_alloc_dummy_fs_info()
85 		return fs_info;  in btrfs_alloc_dummy_fs_info()
86 	fs_info->fs_devices = kzalloc(sizeof(struct btrfs_fs_devices),  in btrfs_alloc_dummy_fs_info()
88 	if (!fs_info->fs_devices) {  in btrfs_alloc_dummy_fs_info()
89 		kfree(fs_info);  in btrfs_alloc_dummy_fs_info()
92 	fs_info->super_copy = kzalloc(sizeof(struct btrfs_super_block),  in btrfs_alloc_dummy_fs_info()
94 	if (!fs_info->super_copy) {  in btrfs_alloc_dummy_fs_info()
95 		kfree(fs_info->fs_devices);  in btrfs_alloc_dummy_fs_info()
96 		kfree(fs_info);  in btrfs_alloc_dummy_fs_info()
100 	if (init_srcu_struct(&fs_info->subvol_srcu)) {  in btrfs_alloc_dummy_fs_info()
101 		kfree(fs_info->fs_devices);  in btrfs_alloc_dummy_fs_info()
102 		kfree(fs_info->super_copy);  in btrfs_alloc_dummy_fs_info()
103 		kfree(fs_info);  in btrfs_alloc_dummy_fs_info()
107 	spin_lock_init(&fs_info->buffer_lock);  in btrfs_alloc_dummy_fs_info()
108 	spin_lock_init(&fs_info->qgroup_lock);  in btrfs_alloc_dummy_fs_info()
109 	spin_lock_init(&fs_info->qgroup_op_lock);  in btrfs_alloc_dummy_fs_info()
110 	spin_lock_init(&fs_info->super_lock);  in btrfs_alloc_dummy_fs_info()
111 	spin_lock_init(&fs_info->fs_roots_radix_lock);  in btrfs_alloc_dummy_fs_info()
112 	spin_lock_init(&fs_info->tree_mod_seq_lock);  in btrfs_alloc_dummy_fs_info()
113 	mutex_init(&fs_info->qgroup_ioctl_lock);  in btrfs_alloc_dummy_fs_info()
114 	mutex_init(&fs_info->qgroup_rescan_lock);  in btrfs_alloc_dummy_fs_info()
115 	rwlock_init(&fs_info->tree_mod_log_lock);  in btrfs_alloc_dummy_fs_info()
116 	fs_info->running_transaction = NULL;  in btrfs_alloc_dummy_fs_info()
117 	fs_info->qgroup_tree = RB_ROOT;  in btrfs_alloc_dummy_fs_info()
118 	fs_info->qgroup_ulist = NULL;  in btrfs_alloc_dummy_fs_info()
119 	atomic64_set(&fs_info->tree_mod_seq, 0);  in btrfs_alloc_dummy_fs_info()
120 	INIT_LIST_HEAD(&fs_info->dirty_qgroups);  in btrfs_alloc_dummy_fs_info()
121 	INIT_LIST_HEAD(&fs_info->dead_roots);  in btrfs_alloc_dummy_fs_info()
122 	INIT_LIST_HEAD(&fs_info->tree_mod_seq_list);  in btrfs_alloc_dummy_fs_info()
123 	INIT_RADIX_TREE(&fs_info->buffer_radix, GFP_ATOMIC);  in btrfs_alloc_dummy_fs_info()
124 	INIT_RADIX_TREE(&fs_info->fs_roots_radix, GFP_ATOMIC);  in btrfs_alloc_dummy_fs_info()
125 	return fs_info;  in btrfs_alloc_dummy_fs_info()
128 static void btrfs_free_dummy_fs_info(struct btrfs_fs_info *fs_info)  in btrfs_free_dummy_fs_info()  argument
133 	spin_lock(&fs_info->buffer_lock);  in btrfs_free_dummy_fs_info()
135 	radix_tree_for_each_slot(slot, &fs_info->buffer_radix, &iter, 0) {  in btrfs_free_dummy_fs_info()
138 		eb = radix_tree_deref_slot_protected(slot, &fs_info->buffer_lock);  in btrfs_free_dummy_fs_info()
147 		spin_unlock(&fs_info->buffer_lock);  in btrfs_free_dummy_fs_info()
149 		spin_lock(&fs_info->buffer_lock);  in btrfs_free_dummy_fs_info()
151 	spin_unlock(&fs_info->buffer_lock);  in btrfs_free_dummy_fs_info()
153 	btrfs_free_qgroup_config(fs_info);  in btrfs_free_dummy_fs_info()
154 	btrfs_free_fs_roots(fs_info);  in btrfs_free_dummy_fs_info()
155 	cleanup_srcu_struct(&fs_info->subvol_srcu);  in btrfs_free_dummy_fs_info()
156 	kfree(fs_info->super_copy);  in btrfs_free_dummy_fs_info()
157 	kfree(fs_info->fs_devices);  in btrfs_free_dummy_fs_info()
158 	kfree(fs_info);  in btrfs_free_dummy_fs_info()
167 	if (root->fs_info)  in btrfs_free_dummy_root()
168 		btrfs_free_dummy_fs_info(root->fs_info);  in btrfs_free_dummy_root()