CRAMFS_MAXPATHLEN
buf->f_namelen = CRAMFS_MAXPATHLEN;
buf = kmalloc(CRAMFS_MAXPATHLEN, GFP_KERNEL);
de = cramfs_read(sb, OFFSET(inode) + offset, sizeof(*de)+CRAMFS_MAXPATHLEN);
de = cramfs_read(dir->i_sb, dir_off, sizeof(*de)+CRAMFS_MAXPATHLEN);