XFS_AGSTATE_PREFERS_METADATA
clear_bit(XFS_AGSTATE_PREFERS_METADATA, &pag->pag_opstate);
clear_bit(XFS_AGSTATE_PREFERS_METADATA, &pag->pag_opstate);
set_bit(XFS_AGSTATE_PREFERS_METADATA, &pag->pag_opstate);
clear_bit(XFS_AGSTATE_PREFERS_METADATA, &pag->pag_opstate);