This patch updates the vbd_sz() macro with newly introduced helper
function to read the nr_sects from block device's hd_parts with the
help of part_nr_sects_read().

Acked-by: Roger Pau Monné <roger.pau@xxxxxxxxxx>
Signed-off-by: Chaitanya Kulkarni <chaitanya.kulkarni@wdc.com>
---
 drivers/block/xen-blkback/common.h | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/block/xen-blkback/common.h b/drivers/block/xen-blkback/common.h
index 1d3002d773f7..f96cb8d1cb99 100644
--- a/drivers/block/xen-blkback/common.h
+++ b/drivers/block/xen-blkback/common.h
@@ -359,7 +359,7 @@ struct pending_req {
 
 
 #define vbd_sz(_v)	((_v)->bdev->bd_part ? \
-			 (_v)->bdev->bd_part->nr_sects : \
+			  bdev_nr_sects((_v)->bdev) : \
 			  get_capacity((_v)->bdev->bd_disk))
 
 #define xen_blkif_get(_b) (atomic_inc(&(_b)->refcnt))
-- 
2.17.0


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