linux-kernel - [PATCH 5/6] block: dasd_genhd: convert to blkdev_reread

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Date:	Sun,  5 Apr 2015 15:24:47 +0800
From:	Ming Lei <ming.lei@...onical.com>
To:	Jens Axboe <axboe@...nel.dk>, linux-kernel@...r.kernel.org,
	Christoph Hellwig <hch@...radead.org>,
	Tejun Heo <tj@...nel.org>
Cc:	Andrew Morton <akpm@...ux-foundation.org>,
	Alexander Viro <viro@...iv.linux.org.uk>,
	Jarod Wilson <jarod@...hat.com>,
	David Herrmann <dh.herrmann@...il.com>,
	Markus Pargmann <mpa@...gutronix.de>,
	nbd-general@...ts.sourceforge.net,
	Stefan Haberland <stefan.haberland@...ibm.com>,
	Sebastian Ott <sebott@...ux.vnet.ibm.com>,
	Fabian Frederick <fabf@...net.be>, linux-s390@...r.kernel.org,
	Ming Lei <ming.lei@...onical.com>
Subject: [PATCH 5/6] block: dasd_genhd: convert to blkdev_reread_part

Also remove the obsolete comment.

Signed-off-by: Ming Lei <ming.lei@...onical.com>
---
 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",
-- 
1.7.9.5

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