Patch "md: fix super_offset endianness in super_1_rdev_size_change" has been added to the 4.9-stable tree

Patch "md: fix super_offset endianness in super_1_rdev_size_change" has been added to the 4.9-stable tree

[gregkh]

This is a note to let you know that I've just added the patch titled

    md: fix super_offset endianness in super_1_rdev_size_change

to the 4.9-stable tree which can be found at:
    http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary

The filename of the patch is:
     md-fix-super_offset-endianness-in-super_1_rdev_size_change.patch
and it can be found in the queue-4.9 subdirectory.

If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@vger.kernel.org> know about it.


>From 3fb632e40d7667d8bedfabc28850ac06d5493f54 Mon Sep 17 00:00:00 2001
From: Jason Yan <yanaijie@huawei.com>
Date: Fri, 10 Mar 2017 11:27:23 +0800
Subject: md: fix super_offset endianness in super_1_rdev_size_change

From: Jason Yan <yanaijie@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 <yanaijie@huawei.com>
Signed-off-by: Shaohua Li <shli@fb.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@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);


Patches currently in stable-queue which might be from yanaijie@huawei.com are

queue-4.9/md-fix-incorrect-use-of-lexx_to_cpu-in-does_sb_need_changing.patch
queue-4.9/md-fix-super_offset-endianness-in-super_1_rdev_size_change.patch