Module Name: src
Committed By: riastradh
Date: Mon May 22 14:58:51 UTC 2023
Modified Files:
src/sys/dev/dkwedge: dk.c
Log Message:
dk(4): Use device_lookup_private for dkwedge_lookup.
No longer necessary to go through the dkwedges array.
Currently device_lookup_private still involves touching other global
locks, but that will change eventually to a lockless pserialized fast
path.
To generate a diff of this commit:
cvs rdiff -u -r1.160 -r1.161 src/sys/dev/dkwedge/dk.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/dev/dkwedge/dk.c
diff -u src/sys/dev/dkwedge/dk.c:1.160 src/sys/dev/dkwedge/dk.c:1.161
--- src/sys/dev/dkwedge/dk.c:1.160 Mon May 22 14:58:41 2023
+++ src/sys/dev/dkwedge/dk.c Mon May 22 14:58:50 2023
@@ -1,4 +1,4 @@
-/* $NetBSD: dk.c,v 1.160 2023/05/22 14:58:41 riastradh Exp $ */
+/* $NetBSD: dk.c,v 1.161 2023/05/22 14:58:50 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 1.160 2023/05/22 14:58:41 riastradh Exp $");
+__KERNEL_RCSID(0, "$NetBSD: dk.c,v 1.161 2023/05/22 14:58:50 riastradh Exp $");
#ifdef _KERNEL_OPT
#include "opt_dkwedge.h"
@@ -1164,17 +1164,8 @@ dkwedge_read(struct disk *pdk, struct vn
static struct dkwedge_softc *
dkwedge_lookup(dev_t dev)
{
- const int unit = minor(dev);
- struct dkwedge_softc *sc;
-
- rw_enter(&dkwedges_lock, RW_READER);
- if (unit < 0 || unit >= ndkwedges)
- sc = NULL;
- else
- sc = dkwedges[unit];
- rw_exit(&dkwedges_lock);
- return sc;
+ return device_lookup_private(&dk_cd, minor(dev));
}
static int
