btrfs_find_delalloc_in_range
delalloc = btrfs_find_delalloc_in_range(inode, cur_offset, end,
delalloc = btrfs_find_delalloc_in_range(inode,
delalloc = btrfs_find_delalloc_in_range(inode, start, end, cached_state,
bool btrfs_find_delalloc_in_range(struct btrfs_inode *inode, u64 start, u64 end,