From 2fb0334ca1c63dafcbe85f1c33349da49a8ad06c Mon Sep 17 00:00:00 2001
From: yamt <yamt@NetBSD.org>
Date: Sat, 25 Oct 2008 14:18:18 +0000
Subject: [PATCH] add assertions.

---
 sys/kern/vfs_cache.c | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/sys/kern/vfs_cache.c b/sys/kern/vfs_cache.c
index 4d75599609ae..43ed181266ca 100644
--- a/sys/kern/vfs_cache.c
+++ b/sys/kern/vfs_cache.c
@@ -1,4 +1,4 @@
-/*	$NetBSD: vfs_cache.c,v 1.78 2008/08/20 15:34:59 pooka Exp $	*/
+/*	$NetBSD: vfs_cache.c,v 1.79 2008/10/25 14:18:18 yamt Exp $	*/
 
 /*-
  * Copyright (c) 2008 The NetBSD Foundation, Inc.
@@ -58,7 +58,7 @@
  */
 
 #include <sys/cdefs.h>
-__KERNEL_RCSID(0, "$NetBSD: vfs_cache.c,v 1.78 2008/08/20 15:34:59 pooka Exp $");
+__KERNEL_RCSID(0, "$NetBSD: vfs_cache.c,v 1.79 2008/10/25 14:18:18 yamt Exp $");
 
 #include "opt_ddb.h"
 #include "opt_revcache.h"
@@ -341,6 +341,7 @@ cache_lookup(struct vnode *dvp, struct vnode **vpp, struct componentname *cnp)
 		/*
 		 * Restore the ISWHITEOUT flag saved earlier.
 		 */
+		KASSERT((ncp->nc_flags & ~ISWHITEOUT) == 0);
 		cnp->cn_flags |= ncp->nc_flags;
 		if (__predict_true(cnp->cn_nameiop != CREATE ||
 		    (cnp->cn_flags & ISLASTCN) == 0)) {
@@ -456,6 +457,7 @@ cache_lookup_raw(struct vnode *dvp, struct vnode **vpp,
 		/*
 		 * Restore the ISWHITEOUT flag saved earlier.
 		 */
+		KASSERT((ncp->nc_flags & ~ISWHITEOUT) == 0);
 		cnp->cn_flags |= ncp->nc_flags;
 		COUNT(cpup->cpu_stats, ncs_neghits);
 		mutex_exit(&ncp->nc_lock);