[PATCH v3 5/7] block: dasd_genhd: convert to blkdev_reread_part

[Ming Lei]

Also remove the obsolete comment.

Reviewed-by: Christoph Hellwig <hch@xxxxxx>
Tested-by: Jarod Wilson <jarod@xxxxxxxxxx>
Acked-by: Jarod Wilson <jarod@xxxxxxxxxx>
Acked-by: Sebastian Ott <sebott@xxxxxxxxxxxxxxxxxx>
Signed-off-by: Ming Lei <ming.lei@xxxxxxxxxxxxx>
---
 drivers/s390/block/dasd_genhd.c | 9 +++------
 1 file changed, 3 insertions(+), 6 deletions(-)

diff --git a/drivers/s390/block/dasd_genhd.c b/drivers/s390/block/dasd_genhd.c
index 90f39f7..2af4619 100644
--- a/drivers/s390/block/dasd_genhd.c
+++ b/drivers/s390/block/dasd_genhd.c
@@ -116,14 +116,11 @@ int dasd_scan_partitions(struct dasd_block *block)
 			      rc);
 		return -ENODEV;
 	}
-	/*
-	 * See fs/partition/check.c:register_disk,rescan_partitions
-	 * Can't call rescan_partitions directly. Use ioctl.
-	 */
-	rc = ioctl_by_bdev(bdev, BLKRRPART, 0);
+
+	rc = blkdev_reread_part(bdev);
 	while (rc == -EBUSY && retry > 0) {
 		schedule();
-		rc = ioctl_by_bdev(bdev, BLKRRPART, 0);
+		rc = blkdev_reread_part(bdev);
 		retry--;
 		DBF_DEV_EVENT(DBF_ERR, block->base,
 			      "scan partitions error, retry %d rc %d",
-- 
1.9.1

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