7378 exported_lock held during nfs4 compound processing

@@ -1643,11 +1643,11 @@
                         cr = crget();
                         xprt->xp_cred = cr;
                 }
 #endif
 
-                exi = checkexport(fsid, xfid);
+                exi = checkexport(fsid, xfid, NULL);
 
                 if (exi != NULL) {
                         publicfh_ok = PUBLICFH_CHECK(disp, exi, fsid, xfid);
 
                         /*