From fbe6365bb4732199a36e0fe6da89086936505e07 Mon Sep 17 00:00:00 2001
From: Heinz Mauelshagen <heinzm@redhat.com>
Date: Fri, 24 Jun 2016 00:36:08 +0200
Subject: [PATCH] dm raid: fix raid10 device size error on out-of-place reshape
Signed-off-by: Heinz Mauelshagen <heinzm@redhat.com>
Signed-off-by: Mike Snitzer <snitzer@redhat.com>
---
drivers/md/dm-raid.c | 8 ++++++++
1 file changed, 8 insertions(+)
diff --git a/drivers/md/dm-raid.c b/drivers/md/dm-raid.c
index 6dc494055267..8118f1e0218b 100644
--- a/drivers/md/dm-raid.c
+++ b/drivers/md/dm-raid.c
@@ -622,8 +622,16 @@ static struct raid_type *get_raid_type_by_ll(const int level, const int layout)
static void rs_set_capacity(struct raid_set *rs)
{
struct mddev *mddev = &rs->md;
+ struct md_rdev *rdev;
struct gendisk *gendisk = dm_disk(dm_table_get_md(rs->ti->table));
+ /*
+ * raid10 sets rdev->sector to the device size, which
+ * is unintended in case of out-of-place reshaping
+ */
+ rdev_for_each(rdev, mddev)
+ rdev->sectors = mddev->dev_sectors;
+
set_capacity(gendisk, mddev->array_sectors);
revalidate_disk(gendisk);
}
--
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