XXXX introduce drv_sectohz

*** 3920,3930 ****
                   * every mod_uninstall_interval seconds.  Periodic uninstall can
                   * be disabled by setting mod_uninstall_interval to 0 which is
                   * the default for a non-DEBUG kernel.
                   */
                  if (mod_uninstall_interval) {
!                         ticks = drv_usectohz(mod_uninstall_interval * 1000000);
                          (void) cv_reltimedwait(&mod_uninstall_cv,
                              &mod_uninstall_lock, ticks, TR_CLOCK_TICK);
                  } else {
                          cv_wait(&mod_uninstall_cv, &mod_uninstall_lock);
                  }
--- 3920,3930 ----
                   * every mod_uninstall_interval seconds.  Periodic uninstall can
                   * be disabled by setting mod_uninstall_interval to 0 which is
                   * the default for a non-DEBUG kernel.
                   */
                  if (mod_uninstall_interval) {
!                         ticks = drv_sectohz(mod_uninstall_interval);
                          (void) cv_reltimedwait(&mod_uninstall_cv,
                              &mod_uninstall_lock, ticks, TR_CLOCK_TICK);
                  } else {
                          cv_wait(&mod_uninstall_cv, &mod_uninstall_lock);
                  }