From: Willy Tarreau <w@1wt.eu>
Date: Mon, 9 Jul 2018 09:43:36 +0000 (+0200)
Subject: MINOR: buffer: b_set_data() doesn't truncate output data anymore
X-Git-Tag: v1.9-dev1~86
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=f6dfd88a92388823258efbf858fc3a2db7fa7bd3;p=thirdparty%2Fhaproxy.git

MINOR: buffer: b_set_data() doesn't truncate output data anymore

b_set_data() is used :
  - in proto_http and hlua to trim input data (b_set_data(co_data()))
  - in SPOE to append data to a buffer while building a message

In no case will this truncate a buffer so we can safely remove the
test for len < b->output.
---

diff --git a/include/common/buf.h b/include/common/buf.h
index 6eec422929..b223b21fa0 100644
--- a/include/common/buf.h
+++ b/include/common/buf.h
@@ -385,8 +385,6 @@ static inline void b_add(struct buffer *b, size_t count)
 /* b_set_data() : sets the buffer's length */
 static inline void b_set_data(struct buffer *b, size_t len)
 {
-	if (len < b->output)
-		b->output = len;
 	b->len = len;
 }