From 1788ec0c48105b1744fb8c22adcaafb90d46eba1 Mon Sep 17 00:00:00 2001
From: Igor Sysoev <igor@sysoev.ru>
Date: Wed, 1 Jun 2011 08:02:34 +0000
Subject: [PATCH] fix "stalled cache updating" alert, when non-cachable HEAD
 response did not not free an expired cache node

---
 src/http/ngx_http_upstream.c | 9 +++++++++
 1 file changed, 9 insertions(+)

diff --git a/src/http/ngx_http_upstream.c b/src/http/ngx_http_upstream.c
index 8f1ee42c3..22187a5e6 100644
--- a/src/http/ngx_http_upstream.c
+++ b/src/http/ngx_http_upstream.c
@@ -2031,6 +2031,15 @@ ngx_http_upstream_send_response(ngx_http_request_t *r, ngx_http_upstream_t *u)
             c->error = 1;
 
         } else {
+
+#if (NGX_HTTP_CACHE)
+
+            if (r->cache) {
+                ngx_http_file_cache_free(r->cache, u->pipe->temp_file);
+            }
+
+#endif
+
             ngx_http_upstream_finalize_request(r, u, rc);
             return;
         }