[PATCH 4.9 17/25] md: fix super_offset endianness in super_1_rdev_size_change

[Greg Kroah-Hartman]

4.9-stable review patch.  If anyone has any objections, please let me know.

------------------

From: Jason Yan <yanai...@huawei.com>

commit 3fb632e40d7667d8bedfabc28850ac06d5493f54 upstream.

The sb->super_offset should be big-endian, but the rdev->sb_start is in
host byte order, so fix this by adding cpu_to_le64.

Signed-off-by: Jason Yan <yanai...@huawei.com>
Signed-off-by: Shaohua Li <s...@fb.com>
Signed-off-by: Greg Kroah-Hartman <gre...@linuxfoundation.org>

---
 drivers/md/md.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

--- a/drivers/md/md.c
+++ b/drivers/md/md.c
@@ -1861,7 +1861,7 @@ super_1_rdev_size_change(struct md_rdev
        }
        sb = page_address(rdev->sb_page);
        sb->data_size = cpu_to_le64(num_sectors);
-       sb->super_offset = rdev->sb_start;
+       sb->super_offset = cpu_to_le64(rdev->sb_start);
        sb->sb_csum = calc_sb_1_csum(sb);
        md_super_write(rdev->mddev, rdev, rdev->sb_start, rdev->sb_size,
                       rdev->sb_page);