506 	for (rw = READ; rw <= WRITE; rw++) {  in throtl_pd_alloc()
512 	tg->bps[READ][LIMIT_MAX] = U64_MAX;  in throtl_pd_alloc()
514 	tg->iops[READ][LIMIT_MAX] = UINT_MAX;  in throtl_pd_alloc()
516 	tg->bps_conf[READ][LIMIT_MAX] = U64_MAX;  in throtl_pd_alloc()
518 	tg->iops_conf[READ][LIMIT_MAX] = UINT_MAX;  in throtl_pd_alloc()
573 	for (rw = READ; rw <= WRITE; rw++)  in tg_update_has_rules()
600 		if (tg->bps[READ][LIMIT_LOW] || tg->bps[WRITE][LIMIT_LOW] ||  in blk_throtl_update_limit_valid()
601 		    tg->iops[READ][LIMIT_LOW] || tg->iops[WRITE][LIMIT_LOW]) {  in blk_throtl_update_limit_valid()
616 	tg->bps[READ][LIMIT_LOW] = 0;  in throtl_pd_offline()
618 	tg->iops[READ][LIMIT_LOW] = 0;  in throtl_pd_offline()
786 		   rw == READ ? 'R' : 'W', tg->slice_start[rw],  in throtl_start_new_slice_with_credit()
798 		   rw == READ ? 'R' : 'W', tg->slice_start[rw],  in throtl_start_new_slice()
814 		   rw == READ ? 'R' : 'W', tg->slice_start[rw],  in throtl_extend_slice()
883 		   rw == READ ? 'R' : 'W', nr_slices, bytes_trim, io_trim,  in throtl_trim_slice()
1106 	bio = throtl_peek_queued(&sq->queued[READ]);  in tg_update_disptime()
1188 	while ((bio = throtl_peek_queued(&sq->queued[READ])) &&  in throtl_dispatch_tg()
1281 			   sq->nr_queued[READ] + sq->nr_queued[WRITE],  in throtl_pending_timer_fn()
1282 			   sq->nr_queued[READ], sq->nr_queued[WRITE]);  in throtl_pending_timer_fn()
1343 	for (rw = READ; rw <= WRITE; rw++)  in blk_throtl_dispatch_work_fn()
1400 		   tg_bps_limit(tg, READ), tg_bps_limit(tg, WRITE),  in tg_conf_updated()
1401 		   tg_iops_limit(tg, READ), tg_iops_limit(tg, WRITE));  in tg_conf_updated()
1439 	throtl_start_new_slice(tg, READ);  in tg_conf_updated()
1522 		.private = offsetof(struct throtl_grp, bps[READ][LIMIT_MAX]),
1534 		.private = offsetof(struct throtl_grp, iops[READ][LIMIT_MAX]),
1589 	if (tg->bps_conf[READ][off] == bps_dft &&  in tg_prfill_limit()
1591 	    tg->iops_conf[READ][off] == iops_dft &&  in tg_prfill_limit()
1598 	if (tg->bps_conf[READ][off] != U64_MAX)  in tg_prfill_limit()
1600 			tg->bps_conf[READ][off]);  in tg_prfill_limit()
1604 	if (tg->iops_conf[READ][off] != UINT_MAX)  in tg_prfill_limit()
1606 			tg->iops_conf[READ][off]);  in tg_prfill_limit()
1655 	v[0] = tg->bps_conf[READ][index];  in tg_set_limit()
1657 	v[2] = tg->iops_conf[READ][index];  in tg_set_limit()
1701 	tg->bps_conf[READ][index] = v[0];  in tg_set_limit()
1703 	tg->iops_conf[READ][index] = v[2];  in tg_set_limit()
1707 		tg->bps[READ][index] = v[0];  in tg_set_limit()
1709 		tg->iops[READ][index] = v[2];  in tg_set_limit()
1712 	tg->bps[READ][LIMIT_LOW] = min(tg->bps_conf[READ][LIMIT_LOW],  in tg_set_limit()
1713 		tg->bps_conf[READ][LIMIT_MAX]);  in tg_set_limit()
1716 	tg->iops[READ][LIMIT_LOW] = min(tg->iops_conf[READ][LIMIT_LOW],  in tg_set_limit()
1717 		tg->iops_conf[READ][LIMIT_MAX]);  in tg_set_limit()
1724 	if (!(tg->bps[READ][LIMIT_LOW] || tg->iops[READ][LIMIT_LOW] ||  in tg_set_limit()
1728 		tg->bps[READ][LIMIT_LOW] = 0;  in tg_set_limit()
1730 		tg->iops[READ][LIMIT_LOW] = 0;  in tg_set_limit()
1795 	if (tg->bps[READ][LIMIT_LOW] || tg->iops[READ][LIMIT_LOW])  in __tg_last_low_overflow_time()
1796 		rtime = tg->last_low_overflow_time[READ];  in __tg_last_low_overflow_time()
1819 		if (!parent->bps[READ][LIMIT_LOW] &&  in tg_last_low_overflow_time()
1820 		    !parent->iops[READ][LIMIT_LOW] &&  in tg_last_low_overflow_time()
1865 	read_limit = tg->bps[READ][LIMIT_LOW] || tg->iops[READ][LIMIT_LOW];  in throtl_tg_can_upgrade()
1869 	if (read_limit && sq->nr_queued[READ] &&  in throtl_tg_can_upgrade()
1873 	    (!read_limit || sq->nr_queued[READ]))  in throtl_tg_can_upgrade()
2034 	if (tg->bps[READ][LIMIT_LOW]) {  in throtl_downgrade_check()
2035 		bps = tg->last_bytes_disp[READ] * HZ;  in throtl_downgrade_check()
2037 		if (bps >= tg->bps[READ][LIMIT_LOW])  in throtl_downgrade_check()
2038 			tg->last_low_overflow_time[READ] = now;  in throtl_downgrade_check()
2048 	if (tg->iops[READ][LIMIT_LOW]) {  in throtl_downgrade_check()
2049 		iops = tg->last_io_disp[READ] * HZ / elapsed_time;  in throtl_downgrade_check()
2050 		if (iops >= tg->iops[READ][LIMIT_LOW])  in throtl_downgrade_check()
2051 			tg->last_low_overflow_time[READ] = now;  in throtl_downgrade_check()
2067 	tg->last_bytes_disp[READ] = 0;  in throtl_downgrade_check()
2069 	tg->last_io_disp[READ] = 0;  in throtl_downgrade_check()
2105 	for (rw = READ; rw <= WRITE; rw++) {  in throtl_update_latency_buckets()
2136 	for (rw = READ; rw <= WRITE; rw++) {  in throtl_update_latency_buckets()
2162 			td->avg_buckets[READ][i].latency,  in throtl_update_latency_buckets()
2163 			td->avg_buckets[READ][i].valid,  in throtl_update_latency_buckets()
2257 		   rw == READ ? 'R' : 'W',  in blk_throtl_bio()
2261 		   sq->nr_queued[READ], sq->nr_queued[WRITE]);  in blk_throtl_bio()
2385 	td->latency_buckets[READ] = __alloc_percpu(sizeof(struct latency_bucket) *  in blk_throtl_init()
2387 	if (!td->latency_buckets[READ]) {  in blk_throtl_init()
2394 		free_percpu(td->latency_buckets[READ]);  in blk_throtl_init()
2413 		free_percpu(td->latency_buckets[READ]);  in blk_throtl_init()
2425 	free_percpu(q->td->latency_buckets[READ]);  in blk_throtl_exit()
2445 			td->avg_buckets[READ][i].latency = DFL_HD_BASELINE_LATENCY;  in blk_throtl_register_queue()