The SCROLL_MOVE method has been optimized such that it is significantly faster
than SCROLL_REDRAW.  Adjust flags to indicate that blitting is preferred over
rendering.
Signed-off-by: NAntonino Daplas <adaplas@gmail.com>
Signed-off-by: NAndrew Morton <akpm@linux-foundation.org>
Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>