137 	unsigned long		dirty;		/* file_dirty + write + nfs */  member
441 	unsigned long dirty;  in zone_dirty_limit()  local
444 		dirty = DIV_ROUND_UP(vm_dirty_bytes, PAGE_SIZE) *  in zone_dirty_limit()
447 		dirty = vm_dirty_ratio * zone_memory / 100;  in zone_dirty_limit()
450 		dirty += dirty / 4;  in zone_dirty_limit()
452 	return dirty;  in zone_dirty_limit()
695 	unsigned long clean = filepages - min(filepages, mdtc->dirty);  in mdtc_calc_avail()
696 	unsigned long global_clean = gdtc->avail - min(gdtc->avail, gdtc->dirty);  in mdtc_calc_avail()
772 					  unsigned long dirty,  in pos_ratio_polynom()  argument
778 	x = div64_s64(((s64)setpoint - (s64)dirty) << RATELIMIT_CALC_SHIFT,  in pos_ratio_polynom()
879 	if (unlikely(dtc->dirty >= limit))  in wb_position_ratio()
888 	pos_ratio = pos_ratio_polynom(setpoint, dtc->dirty, limit);  in wb_position_ratio()
1001 	wb_thresh = max(wb_thresh, (limit - dtc->dirty) / 8);  in wb_position_ratio()
1111 	thresh = max(thresh, dtc->dirty);  in update_dirty_limit()
1151 	unsigned long dirty = dtc->dirty;  in wb_update_dirty_ratelimit()  local
1262 		dirty = dtc->wb_dirty;  in wb_update_dirty_ratelimit()
1269 	if (dirty < setpoint) {  in wb_update_dirty_ratelimit()
1368 static unsigned long dirty_poll_interval(unsigned long dirty,  in dirty_poll_interval()  argument
1371 	if (thresh > dirty)  in dirty_poll_interval()
1372 		return 1UL << (ilog2(thresh - dirty) >> 1);  in dirty_poll_interval()
1544 		unsigned long dirty, thresh, bg_thresh;  in balance_dirty_pages()  local
1558 		gdtc->dirty = nr_reclaimable + global_page_state(NR_WRITEBACK);  in balance_dirty_pages()
1565 			dirty = gdtc->wb_dirty;  in balance_dirty_pages()
1569 			dirty = gdtc->dirty;  in balance_dirty_pages()
1582 					    &mdtc->dirty, &writeback);  in balance_dirty_pages()
1583 			mdtc->dirty += writeback;  in balance_dirty_pages()
1594 				m_dirty = mdtc->dirty;  in balance_dirty_pages()
1612 		if (dirty <= dirty_freerun_ceiling(thresh, bg_thresh) &&  in balance_dirty_pages()
1615 			unsigned long intv = dirty_poll_interval(dirty, thresh);  in balance_dirty_pages()
1637 			((gdtc->dirty > gdtc->thresh) || strictlimit);  in balance_dirty_pages()
1653 				((mdtc->dirty > mdtc->thresh) || strictlimit);  in balance_dirty_pages()
1699 						  sdtc->dirty,  in balance_dirty_pages()
1728 					  sdtc->dirty,  in balance_dirty_pages()
1895 	gdtc->dirty = global_page_state(NR_FILE_DIRTY) +  in wb_over_bg_thresh()
1899 	if (gdtc->dirty > gdtc->bg_thresh)  in wb_over_bg_thresh()
1909 		mem_cgroup_wb_stats(wb, &filepages, &headroom, &mdtc->dirty,  in wb_over_bg_thresh()
1914 		if (mdtc->dirty > mdtc->bg_thresh)  in wb_over_bg_thresh()