btrfs_find_hole_in_pending_extents
found = btrfs_find_hole_in_pending_extents(device, &hole_start, &hole_len,
found = btrfs_find_hole_in_pending_extents(device, hole_start, hole_size, num_bytes);
bool btrfs_find_hole_in_pending_extents(struct btrfs_device *device,