ocfs2_modify_bh
status = ocfs2_modify_bh(lqinode, chunk->qc_headerbh, olq_alloc_dquot,
status = ocfs2_modify_bh(lqinode, bh, olq_update_info, info);
status = ocfs2_modify_bh(sb_dqopt(sb)->files[type], bh, olq_update_info,
status = ocfs2_modify_bh(sb_dqopt(sb)->files[type],
status = ocfs2_modify_bh(lqinode, bh, olq_set_dquot, od);