7378 exported_lock held during nfs4 compound processing

*** 2048,2058 ****
                  *status = NFSERR_STALE;
                  return;
          }
  
          fh = args->rna_to.da_fhandle;
!         to_exi = checkexport(&fh->fh_fsid, (fid_t *)&fh->fh_xlen);
          if (to_exi == NULL) {
                  VN_RELE(fromvp);
                  *status = NFSERR_ACCES;
                  return;
          }
--- 2048,2058 ----
                  *status = NFSERR_STALE;
                  return;
          }
  
          fh = args->rna_to.da_fhandle;
!         to_exi = checkexport(&fh->fh_fsid, (fid_t *)&fh->fh_xlen, NULL);
          if (to_exi == NULL) {
                  VN_RELE(fromvp);
                  *status = NFSERR_ACCES;
                  return;
          }
*** 2194,2204 ****
                  *status = NFSERR_STALE;
                  return;
          }
  
          fh = args->la_to.da_fhandle;
!         to_exi = checkexport(&fh->fh_fsid, (fid_t *)&fh->fh_xlen);
          if (to_exi == NULL) {
                  VN_RELE(fromvp);
                  *status = NFSERR_ACCES;
                  return;
          }
--- 2194,2204 ----
                  *status = NFSERR_STALE;
                  return;
          }
  
          fh = args->la_to.da_fhandle;
!         to_exi = checkexport(&fh->fh_fsid, (fid_t *)&fh->fh_xlen, NULL);
          if (to_exi == NULL) {
                  VN_RELE(fromvp);
                  *status = NFSERR_ACCES;
                  return;
          }