From: Lennart Poettering <lennart@poettering.net>
Date: Mon, 19 Feb 2018 17:37:50 +0000 (+0100)
Subject: io-util: add an unlikely decorator for a test that should never hold
X-Git-Url: http://www.chiark.greenend.org.uk/ucgi/~ianmdlvl/git?a=commitdiff_plain;h=76c35addb83f46fdb054feb968b3f1d7f1f7dae4;p=elogind.git

io-util: add an unlikely decorator for a test that should never hold
---

diff --git a/src/basic/io-util.c b/src/basic/io-util.c
index 08ad42ed9..a6e34cb76 100644
--- a/src/basic/io-util.c
+++ b/src/basic/io-util.c
@@ -137,7 +137,7 @@ int loop_write(int fd, const void *buf, size_t nbytes, bool do_poll) {
         assert(fd >= 0);
         assert(buf);
 
-        if (nbytes > (size_t) SSIZE_MAX)
+        if (_unlikely_(nbytes > (size_t) SSIZE_MAX))
                 return -EINVAL;
 
         do {