On Tue, 18 Jun 2019 22:23:49 +0200 Eric Farman <farman@xxxxxxxxxxxxx> wrote: > We already pinned/copied/unpinned 2K (256 CCWs) of guest memory > to the host space anchored off vfio_ccw_private. There's no need > to do that again once we have the length calculated, when we could > just copy the section we need to the "permanent" space for the I/O. > > Signed-off-by: Eric Farman <farman@xxxxxxxxxxxxx> > --- > drivers/s390/cio/vfio_ccw_cp.c | 10 +++------- > 1 file changed, 3 insertions(+), 7 deletions(-) Reviewed-by: Cornelia Huck <cohuck@xxxxxxxxxx>
