[src/trunk]: src/sys/sys Enable QUEUEDEBUG under DIAGNOSTIC. It has never bee...

[maxv <maxv%NetBSD.org@localhost>]

details:   https://anonhg.NetBSD.org/src/rev/83eda5c96839
branches:  trunk
changeset: 449786:83eda5c96839
user:      maxv <maxv%NetBSD.org@localhost>
date:      Sat Mar 23 12:01:18 2019 +0000

description:
Enable QUEUEDEBUG under DIAGNOSTIC. It has never been documented and used,
but it's very useful and costs basically nothing. I even think we could
enable it by default in the kernel (if we added __predict_false's and
removed some crap).

diffstat:

 sys/sys/queue.h |  9 ++++++++-
 1 files changed, 8 insertions(+), 1 deletions(-)

diffs (23 lines):

diff -r 96a916ab2765 -r 83eda5c96839 sys/sys/queue.h
--- a/sys/sys/queue.h   Sat Mar 23 10:02:05 2019 +0000
+++ b/sys/sys/queue.h   Sat Mar 23 12:01:18 2019 +0000
@@ -1,4 +1,4 @@
-/*     $NetBSD: queue.h,v 1.73 2019/03/08 08:12:39 msaitoh Exp $       */
+/*     $NetBSD: queue.h,v 1.74 2019/03/23 12:01:18 maxv Exp $  */
 
 /*
  * Copyright (c) 1991, 1993
@@ -91,6 +91,13 @@
 #include <sys/null.h>
 #endif
 
+#if defined(_KERNEL) && defined(_KERNEL_OPT)
+#include "opt_diagnostic.h"
+#ifdef DIAGNOSTIC
+#define QUEUEDEBUG     1
+#endif
+#endif
+
 #if defined(QUEUEDEBUG)
 # if defined(_KERNEL)
 #  define QUEUEDEBUG_ABORT(...) panic(__VA_ARGS__)