From add85d5506189171c0cf579f2266ab62bf1381e1 Mon Sep 17 00:00:00 2001
From: Igor Sysoev <igor@sysoev.ru>
Date: Fri, 4 Sep 2009 09:57:38 +0000
Subject: [PATCH] clean cache updating state if a response has uncacheable code
 or cache prohibitive headers

---
 src/http/ngx_http_upstream.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/src/http/ngx_http_upstream.c b/src/http/ngx_http_upstream.c
index 9aa797ac0..6f15c044d 100644
--- a/src/http/ngx_http_upstream.c
+++ b/src/http/ngx_http_upstream.c
@@ -2113,6 +2113,10 @@ ngx_http_upstream_send_response(ngx_http_request_t *r, ngx_http_upstream_t *u)
     ngx_log_debug1(NGX_LOG_DEBUG_HTTP, c->log, 0,
                    "http cacheable: %d", u->cacheable);
 
+    if (u->cacheable == 0 && r->cache) {
+        ngx_http_file_cache_free(r, u->pipe->temp_file);
+    }
+
 #endif
 
     p = u->pipe;