umapm_flags
flags = MOUNTTOUMAPMOUNT(vp0->v_mount)->umapm_flags;
flags = MOUNTTOUMAPMOUNT(mp)->umapm_flags;
flags = MOUNTTOUMAPMOUNT(ap->a_vp->v_mount)->umapm_flags;
flags = MOUNTTOUMAPMOUNT(vp->v_mount)->umapm_flags;