hpfs_ea_remove
hpfs_ea_remove(s, le32_to_cpu(btree->u.internal[j].down), 1, 0);
hpfs_ea_remove(s, ea_sec(ea), ea_in_anode(ea), ea_len(ea));
hpfs_ea_remove(s, ea_sec(ea), ea_in_anode(ea), ea_len(ea));
void hpfs_ea_remove(struct super_block *, secno, int, unsigned);