commit b39df63b16b64a3af42695acb9bc567aad144776 upstream. Since switching to HMM we always need that because we no longer grab references to the pages. Signed-off-by: Christian König <christian.koenig@amd.com> Reviewed-by: Alex Deucher <alexander.deucher@amd.com> Acked-by: Felix Kuehling <Felix.Kuehling@amd.com> CC: stable@vger.kernel.org Signed-off-by: Alex Deucher <alexander.deucher@amd.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>