4671 	struct memcg_cgwb_frn *frn;  in mem_cgroup_track_foreign_dirty_slowpath()  local
4685 		frn = &memcg->cgwb_frn[i];  in mem_cgroup_track_foreign_dirty_slowpath()
4686 		if (frn->bdi_id == wb->bdi->id &&  in mem_cgroup_track_foreign_dirty_slowpath()
4687 		    frn->memcg_id == wb->memcg_css->id)  in mem_cgroup_track_foreign_dirty_slowpath()
4689 		if (time_before64(frn->at, oldest_at) &&  in mem_cgroup_track_foreign_dirty_slowpath()
4690 		    atomic_read(&frn->done.cnt) == 1) {  in mem_cgroup_track_foreign_dirty_slowpath()
4692 			oldest_at = frn->at;  in mem_cgroup_track_foreign_dirty_slowpath()
4708 		if (time_before64(frn->at, now - update_intv))  in mem_cgroup_track_foreign_dirty_slowpath()
4709 			frn->at = now;  in mem_cgroup_track_foreign_dirty_slowpath()
4712 		frn = &memcg->cgwb_frn[oldest];  in mem_cgroup_track_foreign_dirty_slowpath()
4713 		frn->bdi_id = wb->bdi->id;  in mem_cgroup_track_foreign_dirty_slowpath()
4714 		frn->memcg_id = wb->memcg_css->id;  in mem_cgroup_track_foreign_dirty_slowpath()
4715 		frn->at = now;  in mem_cgroup_track_foreign_dirty_slowpath()
4728 		struct memcg_cgwb_frn *frn = &memcg->cgwb_frn[i];  in mem_cgroup_flush_foreign()  local
4736 		if (time_after64(frn->at, now - intv) &&  in mem_cgroup_flush_foreign()
4737 		    atomic_read(&frn->done.cnt) == 1) {  in mem_cgroup_flush_foreign()
4738 			frn->at = 0;  in mem_cgroup_flush_foreign()
4739 			trace_flush_foreign(wb, frn->bdi_id, frn->memcg_id);  in mem_cgroup_flush_foreign()
4740 			cgroup_writeback_by_id(frn->bdi_id, frn->memcg_id,  in mem_cgroup_flush_foreign()
4742 					       &frn->done);  in mem_cgroup_flush_foreign()