nvme: rename bdev operations

Remane block device operations in preparation to add char device file
operations.
Signed-off-by: NJavier González <javier.gonz@samsung.com>
Reviewed-by: NMinwoo Im <minwoo.im.dev@gmail.com>
Signed-off-by: NChristoph Hellwig <hch@lst.de>

drivers/nvme/host/core.c

@@ -2334,7 +2334,7 @@ int nvme_sec_submit(void *data, u16 spsp, u8 secp, void *buffer, size_t len,
 EXPORT_SYMBOL_GPL(nvme_sec_submit);
 #endif /* CONFIG_BLK_SED_OPAL */
 
-static const struct block_device_operations nvme_fops = {
+static const struct block_device_operations nvme_bdev_ops = {
 	.owner		= THIS_MODULE,
 	.ioctl		= nvme_ioctl,
 	.compat_ioctl	= nvme_compat_ioctl,
@@ -3342,7 +3342,7 @@ static inline struct nvme_ns_head *dev_to_ns_head(struct device *dev)
 {
 	struct gendisk *disk = dev_to_disk(dev);
 
-	if (disk->fops == &nvme_fops)
+	if (disk->fops == &nvme_bdev_ops)
 		return nvme_get_ns_from_dev(dev)->head;
 	else
 		return disk->private_data;
@@ -3451,7 +3451,7 @@ static umode_t nvme_ns_id_attrs_are_visible(struct kobject *kobj,
 	}
 #ifdef CONFIG_NVME_MULTIPATH
 	if (a == &dev_attr_ana_grpid.attr || a == &dev_attr_ana_state.attr) {
-		if (dev_to_disk(dev)->fops != &nvme_fops) /* per-path attr */
+		if (dev_to_disk(dev)->fops != &nvme_bdev_ops) /* per-path attr */
 			return 0;
 		if (!nvme_ctrl_use_ana(nvme_get_ns_from_dev(dev)->ctrl))
 			return 0;
@@ -3904,7 +3904,7 @@ static void nvme_alloc_ns(struct nvme_ctrl *ctrl, unsigned nsid,
 	if (!disk)
 		goto out_unlink_ns;
 
-	disk->fops = &nvme_fops;
+	disk->fops = &nvme_bdev_ops;
 	disk->private_data = ns;
 	disk->queue = ns->queue;
 	disk->flags = flags;