lkml.org 
[lkml]   [2017]   [Jul]   [13]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
    Patch in this message
    /
    From
    Subject[PATCH 4.4 51/57] md: fix super_offset endianness in super_1_rdev_size_change
    Date
    4.4-stable review patch.  If anyone has any objections, please let me know.

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

    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
    @@ -1866,7 +1866,7 @@ 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);

    \
     
     \ /
      Last update: 2017-07-13 17:47    [W:4.969 / U:0.088 seconds]
    ©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site