drm/i915: Rework __i915_gem_shrink

In order to do this for all VMs, it's convenient to rework the logic a
bit. This should have no functional impact.

Signed-off-by: Ben Widawsky <ben@bwidawsk.net>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
1 file changed