From 27c7ed683bc28e537f39d7717cce4ec111068dca Mon Sep 17 00:00:00 2001
From: Valentin Bartenev <vbart@nginx.com>
Date: Sat, 10 Dec 2016 13:23:38 +0300
Subject: [PATCH] HTTP/2: prevented creating temp files for requests without
 body.

The problem was introduced by 52bd8cc17f34.
---
 src/http/v2/ngx_http_v2.c | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/src/http/v2/ngx_http_v2.c b/src/http/v2/ngx_http_v2.c
index b9ebcd8ce..f3050f1db 100644
--- a/src/http/v2/ngx_http_v2.c
+++ b/src/http/v2/ngx_http_v2.c
@@ -3552,8 +3552,10 @@ ngx_http_v2_read_request_body(ngx_http_request_t *r,
         rb->buf = ngx_create_temp_buf(r->pool, (size_t) len);
 
     } else {
-        /* enforce writing body to file */
-        r->request_body_in_file_only = 1;
+        if (stream->preread) {
+            /* enforce writing preread buffer to file */
+            r->request_body_in_file_only = 1;
+        }
 
         rb->buf = ngx_calloc_buf(r->pool);