1686 	struct dm_zone *dzone, *bzone;  in dmz_load_mapping()  local
1751 		bzone = dmz_get(zmd, bzone_id);  in dmz_load_mapping()
1752 		if (!bzone) {  in dmz_load_mapping()
1757 		if (!dmz_is_rnd(bzone) && !dmz_is_cache(bzone)) {  in dmz_load_mapping()
1763 		set_bit(DMZ_DATA, &bzone->flags);  in dmz_load_mapping()
1764 		set_bit(DMZ_BUF, &bzone->flags);  in dmz_load_mapping()
1765 		bzone->chunk = chunk;  in dmz_load_mapping()
1766 		bzone->bzone = dzone;  in dmz_load_mapping()
1767 		dzone->bzone = bzone;  in dmz_load_mapping()
1768 		dmz_get_zone_weight(zmd, bzone);  in dmz_load_mapping()
1769 		if (dmz_is_cache(bzone))  in dmz_load_mapping()
1770 			list_add_tail(&bzone->link, &zmd->map_cache_list);  in dmz_load_mapping()
1772 			list_add_tail(&bzone->link, &bzone->dev->map_rnd_list);  in dmz_load_mapping()
1875 	if (zone->bzone)  in dmz_lru_zone()
1876 		__dmz_lru_zone(zmd, zone->bzone);  in dmz_lru_zone()
1963 			dzone = zone->bzone;  in dmz_get_rnd_zone_for_reclaim()
1985 			dzone = zone->bzone;  in dmz_get_rnd_zone_for_reclaim()
2006 		if (!zone->bzone)  in dmz_get_seq_zone_for_reclaim()
2131 	struct dm_zone *bzone;  in dmz_put_chunk_mapping()  local
2135 	bzone = dzone->bzone;  in dmz_put_chunk_mapping()
2136 	if (bzone) {  in dmz_put_chunk_mapping()
2137 		if (dmz_weight(bzone))  in dmz_put_chunk_mapping()
2138 			dmz_lru_zone(zmd, bzone);  in dmz_put_chunk_mapping()
2141 			dmz_unmap_zone(zmd, bzone);  in dmz_put_chunk_mapping()
2142 			dmz_free_zone(zmd, bzone);  in dmz_put_chunk_mapping()
2143 			bzone = NULL;  in dmz_put_chunk_mapping()
2149 	if (dmz_is_active(dzone) || bzone || dmz_weight(dzone))  in dmz_put_chunk_mapping()
2167 	struct dm_zone *bzone;  in dmz_get_chunk_buffer()  local
2172 	bzone = dzone->bzone;  in dmz_get_chunk_buffer()
2173 	if (bzone)  in dmz_get_chunk_buffer()
2177 	bzone = dmz_alloc_zone(zmd, 0, alloc_flags);  in dmz_get_chunk_buffer()
2178 	if (!bzone) {  in dmz_get_chunk_buffer()
2180 			bzone = ERR_PTR(-EIO);  in dmz_get_chunk_buffer()
2188 	dmz_set_chunk_mapping(zmd, dzone->chunk, dzone->id, bzone->id);  in dmz_get_chunk_buffer()
2190 	set_bit(DMZ_BUF, &bzone->flags);  in dmz_get_chunk_buffer()
2191 	bzone->chunk = dzone->chunk;  in dmz_get_chunk_buffer()
2192 	bzone->bzone = dzone;  in dmz_get_chunk_buffer()
2193 	dzone->bzone = bzone;  in dmz_get_chunk_buffer()
2194 	if (dmz_is_cache(bzone))  in dmz_get_chunk_buffer()
2195 		list_add_tail(&bzone->link, &zmd->map_cache_list);  in dmz_get_chunk_buffer()
2197 		list_add_tail(&bzone->link, &bzone->dev->map_rnd_list);  in dmz_get_chunk_buffer()
2201 	return bzone;  in dmz_get_chunk_buffer()
2346 		dzone_id = zone->bzone->id;  in dmz_unmap_zone()
2347 		zone->bzone->bzone = NULL;  in dmz_unmap_zone()
2348 		zone->bzone = NULL;  in dmz_unmap_zone()
2355 		if (WARN_ON(zone->bzone)) {  in dmz_unmap_zone()
2356 			zone->bzone->bzone = NULL;  in dmz_unmap_zone()
2357 			zone->bzone = NULL;  in dmz_unmap_zone()