From 3953403ca660817a33e7f7ad65a265facc0e59c7 Mon Sep 17 00:00:00 2001 From: Jason Yan Date: Fri, 10 Mar 2017 11:27:23 +0800 Subject: [PATCH] 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 Signed-off-by: Shaohua Li Signed-off-by: Greg Kroah-Hartman --- drivers/md/md.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/md/md.c b/drivers/md/md.c index 1d90307a16c4..8ebf1b97e1d2 100644 --- a/drivers/md/md.c +++ b/drivers/md/md.c @@ -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); -- 2.20.1