block: pass a gendisk to blk_queue_free_zone_bitmaps

Switch to a gendisk based API in preparation for moving all zone related
fields from the request_queue to the gendisk.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Chaitanya Kulkarni <kch@nvidia.com>
Reviewed-by: Damien Le Moal <damien.lemoal@opensource.wdc.com>
Reviewed-by: Johannes Thumshirn <johannes.thumshirn@wdc.com>
Link: https://lore.kernel.org/r/20220706070350.1703384-9-hch@lst.deSigned-off-by: Jens Axboe <axboe@kernel.dk>

block/blk-zoned.c

@@ -449,8 +449,10 @@ int blkdev_zone_mgmt_ioctl(struct block_device *bdev, fmode_t mode,
 	return ret;
 }
 
-void blk_queue_free_zone_bitmaps(struct request_queue *q)
+void disk_free_zone_bitmaps(struct gendisk *disk)
 {
+	struct request_queue *q = disk->queue;
+
 	kfree(q->conv_zones_bitmap);
 	q->conv_zones_bitmap = NULL;
 	kfree(q->seq_zones_wlock);
@@ -612,7 +614,7 @@ int blk_revalidate_disk_zones(struct gendisk *disk,
 		ret = 0;
 	} else {
 		pr_warn("%s: failed to revalidate zones\n", disk->disk_name);
-		blk_queue_free_zone_bitmaps(q);
+		disk_free_zone_bitmaps(disk);
 	}
 	blk_mq_unfreeze_queue(q);
 
@@ -628,7 +630,7 @@ void disk_clear_zone_settings(struct gendisk *disk)
 
 	blk_mq_freeze_queue(q);
 
-	blk_queue_free_zone_bitmaps(q);
+	disk_free_zone_bitmaps(disk);
 	blk_queue_flag_clear(QUEUE_FLAG_ZONE_RESETALL, q);
 	q->required_elevator_features &= ~ELEVATOR_F_ZBD_SEQ_WRITE;
 	q->nr_zones = 0;

block/blk.h

@@ -405,10 +405,10 @@ static inline int blk_iolatency_init(struct request_queue *q) { return 0; }
 #endif
 
 #ifdef CONFIG_BLK_DEV_ZONED
-void blk_queue_free_zone_bitmaps(struct request_queue *q);
+void disk_free_zone_bitmaps(struct gendisk *disk);
 void disk_clear_zone_settings(struct gendisk *disk);
 #else
-static inline void blk_queue_free_zone_bitmaps(struct request_queue *q) {}
+static inline void disk_free_zone_bitmaps(struct gendisk *disk) {}
 static inline void disk_clear_zone_settings(struct gendisk *disk) {}
 #endif
 

block/genhd.c

@@ -1165,7 +1165,7 @@ static void disk_release(struct device *dev)
 
 	disk_release_events(disk);
 	kfree(disk->random);
-	blk_queue_free_zone_bitmaps(disk->queue);
+	disk_free_zone_bitmaps(disk);
 	xa_destroy(&disk->part_tbl);
 
 	disk->queue->disk = NULL;