[src/trunk]: src/sys/arch/landisk/landisk Lock vnode across VOP_OPEN/VOP_IOCT...

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

details:   https://anonhg.NetBSD.org/src/rev/5eb62733ab10
branches:  trunk
changeset: 364367:5eb62733ab10
user:      hannken <hannken%NetBSD.org@localhost>
date:      Sat Mar 19 13:49:21 2022 +0000

description:
Lock vnode across VOP_OPEN/VOP_IOCTL/VOP_CLOSE.

diffstat:

 sys/arch/landisk/landisk/autoconf.c |  5 +++--
 1 files changed, 3 insertions(+), 2 deletions(-)

diffs (26 lines):

diff -r cb81e43804c0 -r 5eb62733ab10 sys/arch/landisk/landisk/autoconf.c
--- a/sys/arch/landisk/landisk/autoconf.c       Sat Mar 19 13:48:42 2022 +0000
+++ b/sys/arch/landisk/landisk/autoconf.c       Sat Mar 19 13:49:21 2022 +0000
@@ -1,4 +1,4 @@
-/*     $NetBSD: autoconf.c,v 1.8 2019/04/06 00:09:09 uwe Exp $ */
+/*     $NetBSD: autoconf.c,v 1.9 2022/03/19 13:49:21 hannken Exp $     */
 
 /*-
  * Copyright (c) 2002 The NetBSD Foundation, Inc.
@@ -27,7 +27,7 @@
  */
 
 #include <sys/cdefs.h>
-__KERNEL_RCSID(0, "$NetBSD: autoconf.c,v 1.8 2019/04/06 00:09:09 uwe Exp $");
+__KERNEL_RCSID(0, "$NetBSD: autoconf.c,v 1.9 2022/03/19 13:49:21 hannken Exp $");
 
 #include <sys/param.h>
 #include <sys/systm.h>
@@ -107,6 +107,7 @@
         */
        if (bdevvp(MAKEDISKDEV(bmajor, device_unit(dv), RAW_PART), &tmpvn))
                panic("match_bootdisk: can't alloc vnode");
+       vn_lock(tmpvn, LK_EXCLUSIVE | LK_RETRY);
        error = VOP_OPEN(tmpvn, FREAD, NOCRED);
        if (error) {
 #ifndef DEBUG