35 				       struct nullb_zone *zone)  in null_init_zone_lock()  argument
38 		spin_lock_init(&zone->spinlock);  in null_init_zone_lock()
40 		mutex_init(&zone->mutex);  in null_init_zone_lock()
44 				  struct nullb_zone *zone)  in null_lock_zone()  argument
47 		spin_lock_irq(&zone->spinlock);  in null_lock_zone()
49 		mutex_lock(&zone->mutex);  in null_lock_zone()
53 				    struct nullb_zone *zone)  in null_unlock_zone()  argument
56 		spin_unlock_irq(&zone->spinlock);  in null_unlock_zone()
58 		mutex_unlock(&zone->mutex);  in null_unlock_zone()
64 	struct nullb_zone *zone;  in null_init_zoned_dev()  local
124 		zone = &dev->zones[i];  in null_init_zoned_dev()
126 		null_init_zone_lock(dev, zone);  in null_init_zoned_dev()
127 		zone->start = sector;  in null_init_zoned_dev()
128 		zone->len = dev->zone_size_sects;  in null_init_zoned_dev()
129 		zone->capacity = zone->len;  in null_init_zoned_dev()
130 		zone->wp = zone->start + zone->len;  in null_init_zoned_dev()
131 		zone->type = BLK_ZONE_TYPE_CONVENTIONAL;  in null_init_zoned_dev()
132 		zone->cond = BLK_ZONE_COND_NOT_WP;  in null_init_zoned_dev()
138 		zone = &dev->zones[i];  in null_init_zoned_dev()
140 		null_init_zone_lock(dev, zone);  in null_init_zoned_dev()
141 		zone->start = zone->wp = sector;  in null_init_zoned_dev()
142 		if (zone->start + dev->zone_size_sects > dev_capacity_sects)  in null_init_zoned_dev()
143 			zone->len = dev_capacity_sects - zone->start;  in null_init_zoned_dev()
145 			zone->len = dev->zone_size_sects;  in null_init_zoned_dev()
146 		zone->capacity =  in null_init_zoned_dev()
147 			min_t(sector_t, zone->len, zone_capacity_sects);  in null_init_zoned_dev()
148 		zone->type = BLK_ZONE_TYPE_SEQWRITE_REQ;  in null_init_zoned_dev()
149 		zone->cond = BLK_ZONE_COND_EMPTY;  in null_init_zoned_dev()
189 	struct nullb_zone *zone;  in null_report_zones()  local
201 	zone = &dev->zones[first_zone];  in null_report_zones()
202 	for (i = 0; i < nr_zones; i++, zone++) {  in null_report_zones()
209 		null_lock_zone(dev, zone);  in null_report_zones()
210 		blkz.start = zone->start;  in null_report_zones()
211 		blkz.len = zone->len;  in null_report_zones()
212 		blkz.wp = zone->wp;  in null_report_zones()
213 		blkz.type = zone->type;  in null_report_zones()
214 		blkz.cond = zone->cond;  in null_report_zones()
215 		blkz.capacity = zone->capacity;  in null_report_zones()
216 		null_unlock_zone(dev, zone);  in null_report_zones()
234 	struct nullb_zone *zone = &dev->zones[null_zone_no(dev, sector)];  in null_zone_valid_read_len()  local
238 	if (zone->type == BLK_ZONE_TYPE_CONVENTIONAL ||  in null_zone_valid_read_len()
239 	    sector + nr_sectors <= zone->wp)  in null_zone_valid_read_len()
242 	if (sector > zone->wp)  in null_zone_valid_read_len()
245 	return (zone->wp - sector) << SECTOR_SHIFT;  in null_zone_valid_read_len()
249 				      struct nullb_zone *zone)  in __null_close_zone()  argument
251 	switch (zone->cond) {  in __null_close_zone()
267 	if (zone->wp == zone->start) {  in __null_close_zone()
268 		zone->cond = BLK_ZONE_COND_EMPTY;  in __null_close_zone()
270 		zone->cond = BLK_ZONE_COND_CLOSED;  in __null_close_zone()
279 	struct nullb_zone *zone;  in null_close_imp_open_zone()  local
287 		zone = &dev->zones[zno];  in null_close_imp_open_zone()
292 		if (zone->cond == BLK_ZONE_COND_IMP_OPEN) {  in null_close_imp_open_zone()
293 			__null_close_zone(dev, zone);  in null_close_imp_open_zone()
344 					      struct nullb_zone *zone)  in null_check_zone_resources()  argument
348 	switch (zone->cond) {  in null_check_zone_resources()
368 	struct nullb_zone *zone = &dev->zones[zno];  in null_zone_write()  local
371 	trace_nullb_zone_op(cmd, zno, zone->cond);  in null_zone_write()
373 	if (zone->type == BLK_ZONE_TYPE_CONVENTIONAL) {  in null_zone_write()
379 	null_lock_zone(dev, zone);  in null_zone_write()
381 	if (zone->cond == BLK_ZONE_COND_FULL ||  in null_zone_write()
382 	    zone->cond == BLK_ZONE_COND_READONLY ||  in null_zone_write()
383 	    zone->cond == BLK_ZONE_COND_OFFLINE) {  in null_zone_write()
396 		sector = zone->wp;  in null_zone_write()
401 	} else if (sector != zone->wp) {  in null_zone_write()
406 	if (zone->wp + nr_sectors > zone->start + zone->capacity) {  in null_zone_write()
411 	if (zone->cond == BLK_ZONE_COND_CLOSED ||  in null_zone_write()
412 	    zone->cond == BLK_ZONE_COND_EMPTY) {  in null_zone_write()
415 		ret = null_check_zone_resources(dev, zone);  in null_zone_write()
420 		if (zone->cond == BLK_ZONE_COND_CLOSED) {  in null_zone_write()
423 		} else if (zone->cond == BLK_ZONE_COND_EMPTY) {  in null_zone_write()
427 		if (zone->cond != BLK_ZONE_COND_EXP_OPEN)  in null_zone_write()
428 			zone->cond = BLK_ZONE_COND_IMP_OPEN;  in null_zone_write()
437 	zone->wp += nr_sectors;  in null_zone_write()
438 	if (zone->wp == zone->start + zone->capacity) {  in null_zone_write()
440 		if (zone->cond == BLK_ZONE_COND_EXP_OPEN)  in null_zone_write()
442 		else if (zone->cond == BLK_ZONE_COND_IMP_OPEN)  in null_zone_write()
444 		zone->cond = BLK_ZONE_COND_FULL;  in null_zone_write()
451 	null_unlock_zone(dev, zone);  in null_zone_write()
457 				   struct nullb_zone *zone)  in null_open_zone()  argument
461 	if (zone->type == BLK_ZONE_TYPE_CONVENTIONAL)  in null_open_zone()
466 	switch (zone->cond) {  in null_open_zone()
471 		ret = null_check_zone_resources(dev, zone);  in null_open_zone()
479 		ret = null_check_zone_resources(dev, zone);  in null_open_zone()
490 	zone->cond = BLK_ZONE_COND_EXP_OPEN;  in null_open_zone()
500 				    struct nullb_zone *zone)  in null_close_zone()  argument
504 	if (zone->type == BLK_ZONE_TYPE_CONVENTIONAL)  in null_close_zone()
508 	ret = __null_close_zone(dev, zone);  in null_close_zone()
515 				     struct nullb_zone *zone)  in null_finish_zone()  argument
519 	if (zone->type == BLK_ZONE_TYPE_CONVENTIONAL)  in null_finish_zone()
524 	switch (zone->cond) {  in null_finish_zone()
529 		ret = null_check_zone_resources(dev, zone);  in null_finish_zone()
540 		ret = null_check_zone_resources(dev, zone);  in null_finish_zone()
550 	zone->cond = BLK_ZONE_COND_FULL;  in null_finish_zone()
551 	zone->wp = zone->start + zone->len;  in null_finish_zone()
560 				    struct nullb_zone *zone)  in null_reset_zone()  argument
562 	if (zone->type == BLK_ZONE_TYPE_CONVENTIONAL)  in null_reset_zone()
567 	switch (zone->cond) {  in null_reset_zone()
588 	zone->cond = BLK_ZONE_COND_EMPTY;  in null_reset_zone()
589 	zone->wp = zone->start;  in null_reset_zone()
594 		return null_handle_discard(dev, zone->start, zone->len);  in null_reset_zone()
604 	struct nullb_zone *zone;  in null_zone_mgmt()  local
610 			zone = &dev->zones[i];  in null_zone_mgmt()
611 			null_lock_zone(dev, zone);  in null_zone_mgmt()
612 			if (zone->cond != BLK_ZONE_COND_EMPTY &&  in null_zone_mgmt()
613 			    zone->cond != BLK_ZONE_COND_READONLY &&  in null_zone_mgmt()
614 			    zone->cond != BLK_ZONE_COND_OFFLINE) {  in null_zone_mgmt()
615 				null_reset_zone(dev, zone);  in null_zone_mgmt()
616 				trace_nullb_zone_op(cmd, i, zone->cond);  in null_zone_mgmt()
618 			null_unlock_zone(dev, zone);  in null_zone_mgmt()
624 	zone = &dev->zones[zone_no];  in null_zone_mgmt()
626 	null_lock_zone(dev, zone);  in null_zone_mgmt()
628 	if (zone->cond == BLK_ZONE_COND_READONLY ||  in null_zone_mgmt()
629 	    zone->cond == BLK_ZONE_COND_OFFLINE) {  in null_zone_mgmt()
636 		ret = null_reset_zone(dev, zone);  in null_zone_mgmt()
639 		ret = null_open_zone(dev, zone);  in null_zone_mgmt()
642 		ret = null_close_zone(dev, zone);  in null_zone_mgmt()
645 		ret = null_finish_zone(dev, zone);  in null_zone_mgmt()
653 		trace_nullb_zone_op(cmd, zone_no, zone->cond);  in null_zone_mgmt()
656 	null_unlock_zone(dev, zone);  in null_zone_mgmt()
665 	struct nullb_zone *zone;  in null_process_zoned_cmd()  local
681 		zone = &dev->zones[null_zone_no(dev, sector)];  in null_process_zoned_cmd()
682 		if (zone->cond == BLK_ZONE_COND_OFFLINE)  in null_process_zoned_cmd()
685 		null_lock_zone(dev, zone);  in null_process_zoned_cmd()
687 		null_unlock_zone(dev, zone);  in null_process_zoned_cmd()
696 			       struct nullb_zone *zone, enum blk_zone_cond cond)  in null_set_zone_cond()  argument
702 	null_lock_zone(dev, zone);  in null_set_zone_cond()
711 	if (zone->cond == cond) {  in null_set_zone_cond()
712 		zone->cond = BLK_ZONE_COND_EMPTY;  in null_set_zone_cond()
713 		zone->wp = zone->start;  in null_set_zone_cond()
715 			null_handle_discard(dev, zone->start, zone->len);  in null_set_zone_cond()
717 		if (zone->cond != BLK_ZONE_COND_READONLY &&  in null_set_zone_cond()
718 		    zone->cond != BLK_ZONE_COND_OFFLINE)  in null_set_zone_cond()
719 			null_finish_zone(dev, zone);  in null_set_zone_cond()
720 		zone->cond = cond;  in null_set_zone_cond()
721 		zone->wp = (sector_t)-1;  in null_set_zone_cond()
724 	null_unlock_zone(dev, zone);  in null_set_zone_cond()