Function btrfsutil_sys::btrfs_util_subvolume_path_fd

pub unsafe extern "C" fn btrfs_util_subvolume_path_fd(
    fd: c_int, 
    id: u64, 
    path_ret: *mut *mut c_char
) -> btrfs_util_error

btrfs_util_subvolume_path_fd() - See btrfs_util_subvolume_path().