Use __ratelimit() instead of its own private rate limit implementation.
Signed-off-by: NAkinobu Mita <akinobu.mita@gmail.com>
Cc: Jeff Garzik <jgarzik@pobox.com>
Cc: linux-ide@vger.kernel.org
Signed-off-by: NJeff Garzik <jgarzik@redhat.com>