From 8964d77f806291bfbbad6a2e2b530c1838dec29c Mon Sep 17 00:00:00 2001
From: Yousong Zhou <yszhou4tech@gmail.com>
Date: Thu, 4 Jun 2015 21:41:42 +0800
Subject: [PATCH] ustream-fd: stop trying to read when s->read_blocked is set.

User's s->notify_read is called in ustream_fill_read().  If
s->read_blocked is set there, then stop reading more.

Signed-off-by: Yousong Zhou <yszhou4tech@gmail.com>
---
 ustream-fd.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/ustream-fd.c b/ustream-fd.c
index daef499..5ffca53 100644
--- a/ustream-fd.c
+++ b/ustream-fd.c
@@ -50,6 +50,9 @@ static void ustream_fd_read_pending(struct ustream_fd *sf, bool *more)
 	char *buf;
 
 	do {
+		if (s->read_blocked)
+			break;
+
 		buf = ustream_reserve(s, 1, &buflen);
 		if (!buf)
 			break;