XXXX introduce drv_sectohz

@@ -108,20 +108,20 @@
 int
 sdev_wait4lookup(struct sdev_node *dv, int cmd)
 {
         clock_t expire;
         clock_t rv;
-        clock_t wakeup = drv_usectohz(2 * 1000000);
+        clock_t wakeup = drv_sectohz(2);
         int rval = ENOENT;
         int is_lookup = (cmd == SDEV_LOOKUP);
 
         ASSERT(cmd == SDEV_LOOKUP || cmd == SDEV_READDIR);
         ASSERT(MUTEX_HELD(&dv->sdev_lookup_lock));
 
         /* tick value at which wait expires */
         expire = ddi_get_lbolt() +
-            drv_usectohz(dev_node_wait_timeout * 1000000);
+            drv_sectohz(dev_node_wait_timeout);
 
         sdcmn_err6(("wait4lookup %s %s, %ld %d\n",
             is_lookup ? "lookup" : "readdir",
             dv->sdev_name, expire - ddi_get_lbolt(), dv->sdev_state));
 

@@ -232,11 +232,11 @@
         clock_t expire;
 
         ASSERT(sdev_upcall_door == NULL);
 
         /* timeout expires this many ticks in the future */
-        expire = ddi_get_lbolt() + drv_usectohz(dev_devfsadm_startup * 1000000);
+        expire = ddi_get_lbolt() + drv_sectohz(dev_devfsadm_startup);
 
         if (sdev_door_upcall_filename == NULL) {
                 if ((error = sdev_start_devfsadmd()) != 0) {
                         return (error);
                 }