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

2018-02-20 15:39:31 +01:00
parent 8ac2f74fb6
commit 7f7210c210
1 changed files with 1 additions and 1 deletions
@@ -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 {