Send zone's rootvp to untraverse()

*** 971,999 ****
          /*
           * If dotdotting, then need to check whether it's above the
           * root of a filesystem, or above an export point.
           */
          if (dotdot) {
!                 ASSERT3U(exi->exi_zoneid, ==, curzone->zone_id);
                  /*
                   * If dotdotting at the root of a filesystem, then
                   * need to traverse back to the mounted-on filesystem
                   * and do the dotdot lookup there.
                   */
!                 if ((dvp->v_flag & VROOT) || VN_IS_CURZONEROOT(dvp)) {
  
                          /*
                           * If at the system root, then can
                           * go up no further.
                           */
!                         if (VN_CMP(dvp, ZONE_ROOTVP()))
                                  return (puterrno4(ENOENT));
  
                          /*
                           * Traverse back to the mounted-on filesystem
                           */
!                         dvp = untraverse(dvp);
  
                          /*
                           * Set the different_export flag so we remember
                           * to pick up a new exportinfo entry for
                           * this new filesystem.
--- 971,1001 ----
          /*
           * If dotdotting, then need to check whether it's above the
           * root of a filesystem, or above an export point.
           */
          if (dotdot) {
!                 vnode_t *zone_rootvp = ne->exi_root->exi_vp;
! 
!                 ASSERT3U(exi->exi_zoneid, ==, ne->exi_root->exi_zoneid);
                  /*
                   * If dotdotting at the root of a filesystem, then
                   * need to traverse back to the mounted-on filesystem
                   * and do the dotdot lookup there.
                   */
!                 if ((dvp->v_flag & VROOT) || VN_CMP(dvp, zone_rootvp)) {
  
                          /*
                           * If at the system root, then can
                           * go up no further.
                           */
!                         if (VN_CMP(dvp, zone_rootvp))
                                  return (puterrno4(ENOENT));
  
                          /*
                           * Traverse back to the mounted-on filesystem
                           */
!                         dvp = untraverse(dvp, zone_rootvp);
  
                          /*
                           * Set the different_export flag so we remember
                           * to pick up a new exportinfo entry for
                           * this new filesystem.
*** 2717,2746 ****
           * If dotdotting, then need to check whether it's
           * above the root of a filesystem, or above an
           * export point.
           */
          if (dotdot) {
                  ASSERT(cs->exi != NULL);
!                 ASSERT3U(cs->exi->exi_zoneid, ==, curzone->zone_id);
                  /*
                   * If dotdotting at the root of a filesystem, then
                   * need to traverse back to the mounted-on filesystem
                   * and do the dotdot lookup there.
                   */
!                 if ((cs->vp->v_flag & VROOT) || VN_IS_CURZONEROOT(cs->vp)) {
  
                          /*
                           * If at the system root, then can
                           * go up no further.
                           */
!                         if (VN_CMP(cs->vp, ZONE_ROOTVP()))
                                  return (puterrno4(ENOENT));
  
                          /*
                           * Traverse back to the mounted-on filesystem
                           */
!                         cs->vp = untraverse(cs->vp);
  
                          /*
                           * Set the different_export flag so we remember
                           * to pick up a new exportinfo entry for
                           * this new filesystem.
--- 2719,2750 ----
           * If dotdotting, then need to check whether it's
           * above the root of a filesystem, or above an
           * export point.
           */
          if (dotdot) {
+                 vnode_t *zone_rootvp;
+ 
                  ASSERT(cs->exi != NULL);
!                 zone_rootvp = cs->exi->exi_ne->exi_root->exi_vp;
                  /*
                   * If dotdotting at the root of a filesystem, then
                   * need to traverse back to the mounted-on filesystem
                   * and do the dotdot lookup there.
                   */
!                 if ((cs->vp->v_flag & VROOT) || VN_CMP(cs->vp, zone_rootvp)) {
  
                          /*
                           * If at the system root, then can
                           * go up no further.
                           */
!                         if (VN_CMP(cs->vp, zone_rootvp))
                                  return (puterrno4(ENOENT));
  
                          /*
                           * Traverse back to the mounted-on filesystem
                           */
!                         cs->vp = untraverse(cs->vp, zone_rootvp);
  
                          /*
                           * Set the different_export flag so we remember
                           * to pick up a new exportinfo entry for
                           * this new filesystem.