tree_search_offset
entry = tree_search_offset(ctl, offset_to_bitmap(ctl, *offset),
bitmap_info = tree_search_offset(ctl, offset_to_bitmap(ctl, offset),
right_info = tree_search_offset(ctl, offset + bytes, 0, 0);
left_info = tree_search_offset(ctl, offset - 1, 0, 0);
bitmap = tree_search_offset(ctl, bitmap_offset, 1, 0);
bitmap = tree_search_offset(ctl, bitmap_offset, 1, 0);
info = tree_search_offset(ctl, offset, 0, 0);
info = tree_search_offset(ctl, offset_to_bitmap(ctl, offset),
entry = tree_search_offset(ctl, offset, 0, 1);
entry = tree_search_offset(ctl, bitmap_offset, 1, 0);
entry = tree_search_offset(ctl, start, 0, 1);
entry = tree_search_offset(ctl, offset, 1, 0);
entry = tree_search_offset(ctl, offset, 1, 0);
bitmap_info = tree_search_offset(ctl, offset_to_bitmap(ctl, offset),
info = tree_search_offset(ctl, offset, 0, 0);
info = tree_search_offset(ctl, offset_to_bitmap(ctl, offset),