block: Inline blk_queue_nr_zones()

Since the implementation of blk_queue_nr_zones() is trivial and since
it only has a single caller, inline this function.
Signed-off-by: Bart Van Assche <bart.vanassche@wdc.com>
Reviewed-by: Damien Le Moal <damien.lemoal@wdc.com>
Cc: Matias Bjorling <mb@lightnvm.io>
Cc: Christoph Hellwig <hch@lst.de>
Signed-off-by: Jens Axboe <axboe@kernel.dk>

block/blk-mq-debugfs.c

@@ -214,7 +214,7 @@ static int queue_zone_wlock_show(void *data, struct seq_file *m)
 	if (!q->seq_zones_wlock)
 		return 0;
 
-	for (i = 0; i < blk_queue_nr_zones(q); i++)
+	for (i = 0; i < q->nr_zones; i++)
 		if (test_bit(i, q->seq_zones_wlock))
 			seq_printf(m, "%u\n", i);
 

include/linux/blkdev.h

@@ -800,11 +800,6 @@ static inline unsigned int blk_queue_zone_sectors(struct request_queue *q)
 	return blk_queue_is_zoned(q) ? q->limits.chunk_sectors : 0;
 }
 
-static inline unsigned int blk_queue_nr_zones(struct request_queue *q)
-{
-	return q->nr_zones;
-}
-
 static inline unsigned int blk_queue_zone_no(struct request_queue *q,
 					     sector_t sector)
 {