From 067115e050bdd1560bddbfa4e4648ef180f6948a Mon Sep 17 00:00:00 2001
From: Mateusz Guzik <mjg@FreeBSD.org>
Date: Sat, 21 Jan 2017 16:59:50 +0000
Subject: [PATCH] vfs: hide the getvnode NULL mp message behind DIAGNOSTIC

Since crossmp vnode changes the message was being printed on each boot.

Reported by:	trasz
Discussed with:	kib
---
 sys/kern/vfs_subr.c | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/sys/kern/vfs_subr.c b/sys/kern/vfs_subr.c
index d9c380c10023..6120045b768a 100644
--- a/sys/kern/vfs_subr.c
+++ b/sys/kern/vfs_subr.c
@@ -1489,12 +1489,14 @@ getnewvnode(const char *tag, struct mount *mp, struct vop_vector *vops,
 	vp->v_op = vops;
 	v_init_counters(vp);
 	vp->v_bufobj.bo_ops = &buf_ops_bio;
+#ifdef DIAGNOSTIC
+	if (mp == NULL && vops != &dead_vnodeops)
+		printf("NULL mp in getnewvnode()\n");
+#endif
 #ifdef MAC
 	mac_vnode_init(vp);
 	if (mp != NULL && (mp->mnt_flag & MNT_MULTILABEL) == 0)
 		mac_vnode_associate_singlelabel(mp, vp);
-	else if (mp == NULL && vops != &dead_vnodeops)
-		printf("NULL mp in getnewvnode()\n");
 #endif
 	if (mp != NULL) {
 		vp->v_bufobj.bo_bsize = mp->mnt_stat.f_iosize;