4707 	struct memcg_cgwb_frn *frn;  in mem_cgroup_track_foreign_dirty_slowpath()  local
4721 		frn = &memcg->cgwb_frn[i];  in mem_cgroup_track_foreign_dirty_slowpath()
4722 		if (frn->bdi_id == wb->bdi->id &&  in mem_cgroup_track_foreign_dirty_slowpath()
4723 		    frn->memcg_id == wb->memcg_css->id)  in mem_cgroup_track_foreign_dirty_slowpath()
4725 		if (time_before64(frn->at, oldest_at) &&  in mem_cgroup_track_foreign_dirty_slowpath()
4726 		    atomic_read(&frn->done.cnt) == 1) {  in mem_cgroup_track_foreign_dirty_slowpath()
4728 			oldest_at = frn->at;  in mem_cgroup_track_foreign_dirty_slowpath()
4744 		if (time_before64(frn->at, now - update_intv))  in mem_cgroup_track_foreign_dirty_slowpath()
4745 			frn->at = now;  in mem_cgroup_track_foreign_dirty_slowpath()
4748 		frn = &memcg->cgwb_frn[oldest];  in mem_cgroup_track_foreign_dirty_slowpath()
4749 		frn->bdi_id = wb->bdi->id;  in mem_cgroup_track_foreign_dirty_slowpath()
4750 		frn->memcg_id = wb->memcg_css->id;  in mem_cgroup_track_foreign_dirty_slowpath()
4751 		frn->at = now;  in mem_cgroup_track_foreign_dirty_slowpath()
4764 		struct memcg_cgwb_frn *frn = &memcg->cgwb_frn[i];  in mem_cgroup_flush_foreign()  local
4772 		if (time_after64(frn->at, now - intv) &&  in mem_cgroup_flush_foreign()
4773 		    atomic_read(&frn->done.cnt) == 1) {  in mem_cgroup_flush_foreign()
4774 			frn->at = 0;  in mem_cgroup_flush_foreign()
4775 			trace_flush_foreign(wb, frn->bdi_id, frn->memcg_id);  in mem_cgroup_flush_foreign()
4776 			cgroup_writeback_by_id(frn->bdi_id, frn->memcg_id, 0,  in mem_cgroup_flush_foreign()
4778 					       &frn->done);  in mem_cgroup_flush_foreign()