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    Subject[patch 25/30] block: Fix bad data direction in SG_IO
    -stable review patch.  If anyone has any objections, please let us know.
    ------------------
    From: Jens Axboe <jens.axboe@oracle.com>

    Contrary to what the name misleads you to believe, SG_DXFER_TO_FROM_DEV
    is really just a normal read seen from the device side.

    This patch fixes http://lkml.org/lkml/2006/10/13/100

    Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
    Signed-off-by: Linus Torvalds <torvalds@osdl.org>
    Signed-off-by: Chris Wright <chrisw@sous-sol.org>
    ---
    block/scsi_ioctl.c | 2 +-
    1 file changed, 1 insertion(+), 1 deletion(-)
    --- linux-2.6.18.2.orig/block/scsi_ioctl.c
    +++ linux-2.6.18.2/block/scsi_ioctl.c
    @@ -246,10 +246,10 @@ static int sg_io(struct file *file, requ
    switch (hdr->dxfer_direction) {
    default:
    return -EINVAL;
    - case SG_DXFER_TO_FROM_DEV:
    case SG_DXFER_TO_DEV:
    writing = 1;
    break;
    + case SG_DXFER_TO_FROM_DEV:
    case SG_DXFER_FROM_DEV:
    break;
    }
    --
    -
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