+static void btrfs_close_bdev(struct btrfs_device *device)
+{
+ if (device->bdev && device->writeable) {
+ sync_blockdev(device->bdev);
+ invalidate_bdev(device->bdev);
+ }
+
+ if (device->bdev)
+ blkdev_put(device->bdev, device->mode);
+}
+
+static void btrfs_close_one_device(struct btrfs_device *device)
+{
+ struct btrfs_fs_devices *fs_devices = device->fs_devices;
+ struct btrfs_device *new_device;
+ struct rcu_string *name;
+
+ if (device->bdev)
+ fs_devices->open_devices--;
+
+ if (device->writeable &&
+ device->devid != BTRFS_DEV_REPLACE_DEVID) {
+ list_del_init(&device->dev_alloc_list);
+ fs_devices->rw_devices--;
+ }
+
+ if (device->missing)
+ fs_devices->missing_devices--;
+
+ btrfs_close_bdev(device);
+
+ new_device = btrfs_alloc_device(NULL, &device->devid,
+ device->uuid);
+ BUG_ON(IS_ERR(new_device)); /* -ENOMEM */
+
+ /* Safe because we are under uuid_mutex */
+ if (device->name) {
+ name = rcu_string_strdup(device->name->str, GFP_NOFS);
+ BUG_ON(!name); /* -ENOMEM */
+ rcu_assign_pointer(new_device->name, name);
+ }
+
+ list_replace_rcu(&device->dev_list, &new_device->dev_list);
+ new_device->fs_devices = device->fs_devices;
+
+ call_rcu(&device->rcu, free_device);
+}
+