ROMFS_I
offset += ROMFS_I(inode)->i_dataoffset;
pos = ROMFS_I(inode)->i_dataoffset + offset;
inode = ROMFS_I(i);
i->i_size = ROMFS_I(i)->i_metasize;
kmem_cache_free(romfs_inode_cachep, ROMFS_I(inode));