Module Name: src
Committed By: hannken
Date: Wed Feb 20 10:02:52 UTC 2019
Modified Files:
src/sys/kern: subr_disk_open.c
Log Message:
Fix vnode locking for opendisk(), must lock for VOP_OPEN().
To generate a diff of this commit:
cvs rdiff -u -r1.13 -r1.14 src/sys/kern/subr_disk_open.c
Please note that diffs are not public domain; they are subject to the
copyright notices on the relevant files.
Modified files:
Index: src/sys/kern/subr_disk_open.c
diff -u src/sys/kern/subr_disk_open.c:1.13 src/sys/kern/subr_disk_open.c:1.14
--- src/sys/kern/subr_disk_open.c:1.13 Tue Dec 8 20:36:15 2015
+++ src/sys/kern/subr_disk_open.c Wed Feb 20 10:02:51 2019
@@ -1,4 +1,4 @@
-/* $NetBSD: subr_disk_open.c,v 1.13 2015/12/08 20:36:15 christos Exp $ */
+/* $NetBSD: subr_disk_open.c,v 1.14 2019/02/20 10:02:51 hannken Exp $ */
/*-
* Copyright (c) 2006 The NetBSD Foundation, Inc.
@@ -27,7 +27,7 @@
*/
#include <sys/cdefs.h>
-__KERNEL_RCSID(0, "$NetBSD: subr_disk_open.c,v 1.13 2015/12/08 20:36:15 christos Exp $");
+__KERNEL_RCSID(0, "$NetBSD: subr_disk_open.c,v 1.14 2019/02/20 10:02:51 hannken Exp $");
#include <sys/param.h>
#include <sys/conf.h>
@@ -65,6 +65,7 @@ opendisk(device_t dv)
if (bdevvp(dev, &tmpvn))
panic("%s: can't alloc vnode for %s", __func__,
device_xname(dv));
+ vn_lock(tmpvn, LK_EXCLUSIVE | LK_RETRY);
error = VOP_OPEN(tmpvn, FREAD | FSILENT, NOCRED);
if (error) {
/*
