Commit 3953403c authored Mar 10, 2017 by Jason Yan Committed by Greg Kroah-Hartman Jul 15, 2017

md: fix super_offset endianness in super_1_rdev_size_change



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>

parent 9a37d02c

drivers/md/md.c

+1 −1

Original line number	Diff line number	Diff line
		@@ -1861,7 +1861,7 @@ super_1_rdev_size_change(struct md_rdev *rdev, sector_t num_sectors)
		}
		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);