ngx_http_upstream_cleanup   69 http/ngx_http_upstream.c static void ngx_http_upstream_cleanup(void *data);
ngx_http_upstream_cleanup  379 http/ngx_http_upstream.c         ngx_http_upstream_cleanup(r);
ngx_http_upstream_cleanup  533 http/ngx_http_upstream.c     cln->handler = ngx_http_upstream_cleanup;