ext2_htree_get_block
if (ext2_blkatoff(vp, ext2_htree_get_block(level->h_entry) *
ext2_htree_get_block(found) * m_fs->e2fs_bsize,
blk = ext2_htree_get_block(leaf_node);
static uint32_t ext2_htree_get_block(struct ext2fs_htree_entry *ep);
blknum = ext2_htree_get_block(leaf_node);