count connection once per request
diff --git a/src/http/ngx_http_request.h b/src/http/ngx_http_request.h
index 25f07b1..5cdcb94 100644
--- a/src/http/ngx_http_request.h
+++ b/src/http/ngx_http_request.h
@@ -430,6 +430,12 @@
 
 #endif
 
+    /*
+     * instead of using the request context data in ngx_http_limit_zone_module
+     * we use the single bit in the request structure
+     */
+    unsigned                          limit_zone_set:1;
+
 #if 0
     unsigned                          cachable:1;
 #endif