gfs2_dir_check
error = gfs2_dir_check(dir, name, ip);
int gfs2_dir_check(struct inode *dir, const struct qstr *filename,
error = gfs2_dir_check(dir, &dentry->d_name, NULL);
return gfs2_dir_check(&dip->i_inode, name, ip);
error = gfs2_dir_check(ndir, &ndentry->d_name, NULL);
error = gfs2_dir_check(sdp->sd_jindex, &name, NULL);