4640 	struct memcg_cgwb_frn *frn;  in mem_cgroup_track_foreign_dirty_slowpath()  local
4654 		frn = &memcg->cgwb_frn[i];  in mem_cgroup_track_foreign_dirty_slowpath()
4655 		if (frn->bdi_id == wb->bdi->id &&  in mem_cgroup_track_foreign_dirty_slowpath()
4656 		    frn->memcg_id == wb->memcg_css->id)  in mem_cgroup_track_foreign_dirty_slowpath()
4658 		if (time_before64(frn->at, oldest_at) &&  in mem_cgroup_track_foreign_dirty_slowpath()
4659 		    atomic_read(&frn->done.cnt) == 1) {  in mem_cgroup_track_foreign_dirty_slowpath()
4661 			oldest_at = frn->at;  in mem_cgroup_track_foreign_dirty_slowpath()
4677 		if (time_before64(frn->at, now - update_intv))  in mem_cgroup_track_foreign_dirty_slowpath()
4678 			frn->at = now;  in mem_cgroup_track_foreign_dirty_slowpath()
4681 		frn = &memcg->cgwb_frn[oldest];  in mem_cgroup_track_foreign_dirty_slowpath()
4682 		frn->bdi_id = wb->bdi->id;  in mem_cgroup_track_foreign_dirty_slowpath()
4683 		frn->memcg_id = wb->memcg_css->id;  in mem_cgroup_track_foreign_dirty_slowpath()
4684 		frn->at = now;  in mem_cgroup_track_foreign_dirty_slowpath()
4697 		struct memcg_cgwb_frn *frn = &memcg->cgwb_frn[i];  in mem_cgroup_flush_foreign()  local
4705 		if (time_after64(frn->at, now - intv) &&  in mem_cgroup_flush_foreign()
4706 		    atomic_read(&frn->done.cnt) == 1) {  in mem_cgroup_flush_foreign()
4707 			frn->at = 0;  in mem_cgroup_flush_foreign()
4708 			trace_flush_foreign(wb, frn->bdi_id, frn->memcg_id);  in mem_cgroup_flush_foreign()
4709 			cgroup_writeback_by_id(frn->bdi_id, frn->memcg_id,  in mem_cgroup_flush_foreign()
4711 					       &frn->done);  in mem_cgroup_flush_foreign()