179 static struct dirty_throttle_control *mdtc_gdtc(struct dirty_throttle_control *mdtc)  in mdtc_gdtc()  argument
181 	return mdtc->gdtc;  in mdtc_gdtc()
233 static struct dirty_throttle_control *mdtc_gdtc(struct dirty_throttle_control *mdtc)  in mdtc_gdtc()  argument
732 static void mdtc_calc_avail(struct dirty_throttle_control *mdtc,  in mdtc_calc_avail()  argument
735 	struct dirty_throttle_control *gdtc = mdtc_gdtc(mdtc);  in mdtc_calc_avail()
736 	unsigned long clean = filepages - min(filepages, mdtc->dirty);  in mdtc_calc_avail()
740 	mdtc->avail = filepages + min(headroom, other_clean);  in mdtc_calc_avail()
1346 				  struct dirty_throttle_control *mdtc,  in __wb_update_bandwidth()  argument
1382 		if (IS_ENABLED(CONFIG_CGROUP_WRITEBACK) && mdtc) {  in __wb_update_bandwidth()
1383 			domain_update_bandwidth(mdtc, now);  in __wb_update_bandwidth()
1384 			wb_update_dirty_ratelimit(mdtc, dirtied, elapsed);  in __wb_update_bandwidth()
1567 	struct dirty_throttle_control * const mdtc = mdtc_valid(&mdtc_stor) ?  in balance_dirty_pages()  local
1615 		if (mdtc) {  in balance_dirty_pages()
1623 					    &mdtc->dirty, &writeback);  in balance_dirty_pages()
1624 			mdtc->dirty += writeback;  in balance_dirty_pages()
1625 			mdtc_calc_avail(mdtc, filepages, headroom);  in balance_dirty_pages()
1627 			domain_dirty_limits(mdtc);  in balance_dirty_pages()
1630 				wb_dirty_limits(mdtc);  in balance_dirty_pages()
1631 				m_dirty = mdtc->wb_dirty;  in balance_dirty_pages()
1632 				m_thresh = mdtc->wb_thresh;  in balance_dirty_pages()
1633 				m_bg_thresh = mdtc->wb_bg_thresh;  in balance_dirty_pages()
1635 				m_dirty = mdtc->dirty;  in balance_dirty_pages()
1636 				m_thresh = mdtc->thresh;  in balance_dirty_pages()
1637 				m_bg_thresh = mdtc->bg_thresh;  in balance_dirty_pages()
1654 		    (!mdtc ||  in balance_dirty_pages()
1661 			if (mdtc)  in balance_dirty_pages()
1685 		if (mdtc) {  in balance_dirty_pages()
1693 				wb_dirty_limits(mdtc);  in balance_dirty_pages()
1695 			dirty_exceeded |= (mdtc->wb_dirty > mdtc->wb_thresh) &&  in balance_dirty_pages()
1696 				((mdtc->dirty > mdtc->thresh) || strictlimit);  in balance_dirty_pages()
1698 			wb_position_ratio(mdtc);  in balance_dirty_pages()
1699 			if (mdtc->pos_ratio < gdtc->pos_ratio)  in balance_dirty_pages()
1700 				sdtc = mdtc;  in balance_dirty_pages()
1709 			__wb_update_bandwidth(gdtc, mdtc, start_time, true);  in balance_dirty_pages()
1933 	struct dirty_throttle_control * const mdtc = mdtc_valid(&mdtc_stor) ?  in wb_over_bg_thresh()  local
1952 	if (mdtc) {  in wb_over_bg_thresh()
1955 		mem_cgroup_wb_stats(wb, &filepages, &headroom, &mdtc->dirty,  in wb_over_bg_thresh()
1957 		mdtc_calc_avail(mdtc, filepages, headroom);  in wb_over_bg_thresh()
1958 		domain_dirty_limits(mdtc);	/* ditto, ignore writeback */  in wb_over_bg_thresh()
1960 		if (mdtc->dirty > mdtc->bg_thresh)  in wb_over_bg_thresh()
1964 		    wb_calc_thresh(mdtc->wb, mdtc->bg_thresh))  in wb_over_bg_thresh()