494 	for (rw = READ; rw <= WRITE; rw++) {  in throtl_pd_alloc()
500 	tg->bps[READ][LIMIT_MAX] = U64_MAX;  in throtl_pd_alloc()
502 	tg->iops[READ][LIMIT_MAX] = UINT_MAX;  in throtl_pd_alloc()
504 	tg->bps_conf[READ][LIMIT_MAX] = U64_MAX;  in throtl_pd_alloc()
506 	tg->iops_conf[READ][LIMIT_MAX] = UINT_MAX;  in throtl_pd_alloc()
555 	for (rw = READ; rw <= WRITE; rw++)  in tg_update_has_rules()
582 		if (tg->bps[READ][LIMIT_LOW] || tg->bps[WRITE][LIMIT_LOW] ||  in blk_throtl_update_limit_valid()
583 		    tg->iops[READ][LIMIT_LOW] || tg->iops[WRITE][LIMIT_LOW]) {  in blk_throtl_update_limit_valid()
598 	tg->bps[READ][LIMIT_LOW] = 0;  in throtl_pd_offline()
600 	tg->iops[READ][LIMIT_LOW] = 0;  in throtl_pd_offline()
777 		   rw == READ ? 'R' : 'W', tg->slice_start[rw],  in throtl_start_new_slice_with_credit()
789 		   rw == READ ? 'R' : 'W', tg->slice_start[rw],  in throtl_start_new_slice()
805 		   rw == READ ? 'R' : 'W', tg->slice_start[rw],  in throtl_extend_slice()
874 		   rw == READ ? 'R' : 'W', nr_slices, bytes_trim, io_trim,  in throtl_trim_slice()
1084 	bio = throtl_peek_queued(&sq->queued[READ]);  in tg_update_disptime()
1166 	while ((bio = throtl_peek_queued(&sq->queued[READ])) &&  in throtl_dispatch_tg()
1255 			   sq->nr_queued[READ] + sq->nr_queued[WRITE],  in throtl_pending_timer_fn()
1256 			   sq->nr_queued[READ], sq->nr_queued[WRITE]);  in throtl_pending_timer_fn()
1317 	for (rw = READ; rw <= WRITE; rw++)  in blk_throtl_dispatch_work_fn()
1374 		   tg_bps_limit(tg, READ), tg_bps_limit(tg, WRITE),  in tg_conf_updated()
1375 		   tg_iops_limit(tg, READ), tg_iops_limit(tg, WRITE));  in tg_conf_updated()
1470 		.private = offsetof(struct throtl_grp, bps[READ][LIMIT_MAX]),
1482 		.private = offsetof(struct throtl_grp, iops[READ][LIMIT_MAX]),
1537 	if (tg->bps_conf[READ][off] == bps_dft &&  in tg_prfill_limit()
1539 	    tg->iops_conf[READ][off] == iops_dft &&  in tg_prfill_limit()
1546 	if (tg->bps_conf[READ][off] != U64_MAX)  in tg_prfill_limit()
1548 			tg->bps_conf[READ][off]);  in tg_prfill_limit()
1552 	if (tg->iops_conf[READ][off] != UINT_MAX)  in tg_prfill_limit()
1554 			tg->iops_conf[READ][off]);  in tg_prfill_limit()
1603 	v[0] = tg->bps_conf[READ][index];  in tg_set_limit()
1605 	v[2] = tg->iops_conf[READ][index];  in tg_set_limit()
1649 	tg->bps_conf[READ][index] = v[0];  in tg_set_limit()
1651 	tg->iops_conf[READ][index] = v[2];  in tg_set_limit()
1655 		tg->bps[READ][index] = v[0];  in tg_set_limit()
1657 		tg->iops[READ][index] = v[2];  in tg_set_limit()
1660 	tg->bps[READ][LIMIT_LOW] = min(tg->bps_conf[READ][LIMIT_LOW],  in tg_set_limit()
1661 		tg->bps_conf[READ][LIMIT_MAX]);  in tg_set_limit()
1664 	tg->iops[READ][LIMIT_LOW] = min(tg->iops_conf[READ][LIMIT_LOW],  in tg_set_limit()
1665 		tg->iops_conf[READ][LIMIT_MAX]);  in tg_set_limit()
1672 	if (!(tg->bps[READ][LIMIT_LOW] || tg->iops[READ][LIMIT_LOW] ||  in tg_set_limit()
1676 		tg->bps[READ][LIMIT_LOW] = 0;  in tg_set_limit()
1678 		tg->iops[READ][LIMIT_LOW] = 0;  in tg_set_limit()
1743 	if (tg->bps[READ][LIMIT_LOW] || tg->iops[READ][LIMIT_LOW])  in __tg_last_low_overflow_time()
1744 		rtime = tg->last_low_overflow_time[READ];  in __tg_last_low_overflow_time()
1767 		if (!parent->bps[READ][LIMIT_LOW] &&  in tg_last_low_overflow_time()
1768 		    !parent->iops[READ][LIMIT_LOW] &&  in tg_last_low_overflow_time()
1813 	read_limit = tg->bps[READ][LIMIT_LOW] || tg->iops[READ][LIMIT_LOW];  in throtl_tg_can_upgrade()
1817 	if (read_limit && sq->nr_queued[READ] &&  in throtl_tg_can_upgrade()
1821 	    (!read_limit || sq->nr_queued[READ]))  in throtl_tg_can_upgrade()
1982 	if (tg->bps[READ][LIMIT_LOW]) {  in throtl_downgrade_check()
1983 		bps = tg->last_bytes_disp[READ] * HZ;  in throtl_downgrade_check()
1985 		if (bps >= tg->bps[READ][LIMIT_LOW])  in throtl_downgrade_check()
1986 			tg->last_low_overflow_time[READ] = now;  in throtl_downgrade_check()
1996 	if (tg->iops[READ][LIMIT_LOW]) {  in throtl_downgrade_check()
1997 		iops = tg->last_io_disp[READ] * HZ / elapsed_time;  in throtl_downgrade_check()
1998 		if (iops >= tg->iops[READ][LIMIT_LOW])  in throtl_downgrade_check()
1999 			tg->last_low_overflow_time[READ] = now;  in throtl_downgrade_check()
2015 	tg->last_bytes_disp[READ] = 0;  in throtl_downgrade_check()
2017 	tg->last_io_disp[READ] = 0;  in throtl_downgrade_check()
2049 	for (rw = READ; rw <= WRITE; rw++) {  in throtl_update_latency_buckets()
2080 	for (rw = READ; rw <= WRITE; rw++) {  in throtl_update_latency_buckets()
2106 			td->avg_buckets[READ][i].latency,  in throtl_update_latency_buckets()
2107 			td->avg_buckets[READ][i].valid,  in throtl_update_latency_buckets()
2191 		   rw == READ ? 'R' : 'W',  in blk_throtl_bio()
2195 		   sq->nr_queued[READ], sq->nr_queued[WRITE]);  in blk_throtl_bio()
2323 		while ((bio = throtl_peek_queued(&sq->queued[READ])))  in tg_drain_bios()
2363 	for (rw = READ; rw <= WRITE; rw++)  in blk_throtl_drain()
2379 	td->latency_buckets[READ] = __alloc_percpu(sizeof(struct latency_bucket) *  in blk_throtl_init()
2381 	if (!td->latency_buckets[READ]) {  in blk_throtl_init()
2388 		free_percpu(td->latency_buckets[READ]);  in blk_throtl_init()
2407 		free_percpu(td->latency_buckets[READ]);  in blk_throtl_init()
2419 	free_percpu(q->td->latency_buckets[READ]);  in blk_throtl_exit()
2439 			td->avg_buckets[READ][i].latency = DFL_HD_BASELINE_LATENCY;  in blk_throtl_register_queue()