int btrfs_reflink(int infd, int outfd);
int btrfs_clone_range(int infd, uint64_t in_offset, int ofd, uint64_t out_offset, uint64_t sz);
+int btrfs_get_block_device_fd(int fd, dev_t *dev);
int btrfs_get_block_device(const char *path, dev_t *dev);
int btrfs_defrag_fd(int fd);
int btrfs_quota_limit_fd(int fd, uint64_t referred_max);
int btrfs_quota_limit(const char *path, uint64_t referred_max);
+
+int btrfs_resize_loopback_fd(int fd, uint64_t size);
+int btrfs_resize_loopback(const char *path, uint64_t size);