OCFS2_OSB_HARD_RO
osb->osb_flags &= ~(OCFS2_OSB_SOFT_RO|OCFS2_OSB_HARD_RO);
osb->osb_flags |= OCFS2_OSB_HARD_RO;
ret = osb->osb_flags & OCFS2_OSB_HARD_RO;
ret = osb->osb_flags & (OCFS2_OSB_SOFT_RO | OCFS2_OSB_HARD_RO);
if (osb->osb_flags & OCFS2_OSB_HARD_RO) {