7378 exported_lock held during nfs4 compound processing

*** 2715,2725 ****
          fbva.va_mask = AT_ALL;
          fbvap = VOP_GETATTR(fvp, &fbva, 0, cr, NULL) ? NULL : &fbva;
          favap = fbvap;
  
          fh3 = &args->to.dir;
!         to_exi = checkexport(&fh3->fh3_fsid, FH3TOXFIDP(fh3));
          if (to_exi == NULL) {
                  resp->status = NFS3ERR_ACCES;
                  goto err1;
          }
          exi_rele(to_exi);
--- 2715,2725 ----
          fbva.va_mask = AT_ALL;
          fbvap = VOP_GETATTR(fvp, &fbva, 0, cr, NULL) ? NULL : &fbva;
          favap = fbvap;
  
          fh3 = &args->to.dir;
!         to_exi = checkexport(&fh3->fh3_fsid, FH3TOXFIDP(fh3), NULL);
          if (to_exi == NULL) {
                  resp->status = NFS3ERR_ACCES;
                  goto err1;
          }
          exi_rele(to_exi);
*** 2925,2935 ****
  
          va.va_mask = AT_ALL;
          vap = VOP_GETATTR(vp, &va, 0, cr, NULL) ? NULL : &va;
  
          fh3 = &args->link.dir;
!         to_exi = checkexport(&fh3->fh3_fsid, FH3TOXFIDP(fh3));
          if (to_exi == NULL) {
                  resp->status = NFS3ERR_ACCES;
                  goto out1;
          }
          exi_rele(to_exi);
--- 2925,2935 ----
  
          va.va_mask = AT_ALL;
          vap = VOP_GETATTR(vp, &va, 0, cr, NULL) ? NULL : &va;
  
          fh3 = &args->link.dir;
!         to_exi = checkexport(&fh3->fh3_fsid, FH3TOXFIDP(fh3), NULL);
          if (to_exi == NULL) {
                  resp->status = NFS3ERR_ACCES;
                  goto out1;
          }
          exi_rele(to_exi);