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authorriastradh <riastradh@NetBSD.org>2023-04-21 18:44:18 +0000
committerriastradh <riastradh@NetBSD.org>2023-04-21 18:44:18 +0000
commit6048a439523fe9fb016c5c228dec66f2e3bbc996 (patch)
treecc9d757ed5c0f19a8444bde669876be8de70db4c /sys/dev/dkwedge/dk.c
parentd3751672828dd22efa27294b9a5f71d6e0cf2ab1 (diff)
dk(4): Take a read-lock on dkwedges_lock if we're only reading.
- dkwedge_find_by_name - dkwedge_find_by_parent - dkwedge_print_wnames
Diffstat (limited to 'sys/dev/dkwedge/dk.c')
-rw-r--r--sys/dev/dkwedge/dk.c10
1 files changed, 5 insertions, 5 deletions
diff --git a/sys/dev/dkwedge/dk.c b/sys/dev/dkwedge/dk.c
index 0c91531a826..2e40b0f16c2 100644
--- a/sys/dev/dkwedge/dk.c
+++ b/sys/dev/dkwedge/dk.c
@@ -1,4 +1,4 @@
-/* $NetBSD: dk.c,v 1.144 2023/04/21 18:31:00 riastradh Exp $ */
+/* $NetBSD: dk.c,v 1.145 2023/04/21 18:44:18 riastradh Exp $ */
/*-
* Copyright (c) 2004, 2005, 2006, 2007 The NetBSD Foundation, Inc.
@@ -30,7 +30,7 @@
*/
#include <sys/cdefs.h>
-__KERNEL_RCSID(0, "$NetBSD: dk.c,v 1.144 2023/04/21 18:31:00 riastradh Exp $");
+__KERNEL_RCSID(0, "$NetBSD: dk.c,v 1.145 2023/04/21 18:44:18 riastradh Exp $");
#ifdef _KERNEL_OPT
#include "opt_dkwedge.h"
@@ -877,7 +877,7 @@ dkwedge_find_by_wname(const char *wname)
struct dkwedge_softc *sc;
int i;
- rw_enter(&dkwedges_lock, RW_WRITER);
+ rw_enter(&dkwedges_lock, RW_READER);
for (i = 0; i < ndkwedges; i++) {
if ((sc = dkwedges[i]) == NULL)
continue;
@@ -900,7 +900,7 @@ device_t
dkwedge_find_by_parent(const char *name, size_t *i)
{
- rw_enter(&dkwedges_lock, RW_WRITER);
+ rw_enter(&dkwedges_lock, RW_READER);
for (; *i < (size_t)ndkwedges; (*i)++) {
struct dkwedge_softc *sc;
if ((sc = dkwedges[*i]) == NULL)
@@ -920,7 +920,7 @@ dkwedge_print_wnames(void)
struct dkwedge_softc *sc;
int i;
- rw_enter(&dkwedges_lock, RW_WRITER);
+ rw_enter(&dkwedges_lock, RW_READER);
for (i = 0; i < ndkwedges; i++) {
if ((sc = dkwedges[i]) == NULL)
continue;