From a66c38928305566ab81042d4242432a649ec767f Mon Sep 17 00:00:00 2001
From: kib <kib@FreeBSD.org>
Date: Sat, 4 Apr 2015 08:06:13 +0000
Subject: [PATCH] MFC r280797: Make debug.vmem_check a tunable.  It is useful
 to set it early.

---
 sys/kern/subr_vmem.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/sys/kern/subr_vmem.c b/sys/kern/subr_vmem.c
index 3b70738389bb..20070fcdffd1 100644
--- a/sys/kern/subr_vmem.c
+++ b/sys/kern/subr_vmem.c
@@ -172,7 +172,7 @@ struct vmem_btag {
 
 #if defined(DIAGNOSTIC)
 static int enable_vmem_check = 1;
-SYSCTL_INT(_debug, OID_AUTO, vmem_check, CTLFLAG_RW,
+SYSCTL_INT(_debug, OID_AUTO, vmem_check, CTLFLAG_RWTUN,
     &enable_vmem_check, 0, "Enable vmem check");
 static void vmem_check(vmem_t *);
 #endif