From aff92fcbb9389c891329e3508fc718f5599823c0 Mon Sep 17 00:00:00 2001
From: Doug Barton <dougb@FreeBSD.org>
Date: Sat, 18 Jun 2011 19:41:05 +0000
Subject: [PATCH] Add rc.d/kld to load kernel modules after local disks are up.
 This method is many times faster than doing it in /boot/loader.conf.

---
 etc/defaults/rc.conf     |  1 +
 etc/rc.d/Makefile        |  2 +-
 etc/rc.d/kld             | 53 ++++++++++++++++++++++++++++++++++++++++
 etc/rc.d/var             |  2 +-
 share/man/man5/rc.conf.5 | 10 +++++++-
 5 files changed, 65 insertions(+), 3 deletions(-)
 create mode 100755 etc/rc.d/kld

diff --git a/etc/defaults/rc.conf b/etc/defaults/rc.conf
index 2faf7fb59bcd..8dfd5e128789 100644
--- a/etc/defaults/rc.conf
+++ b/etc/defaults/rc.conf
@@ -38,6 +38,7 @@ ddb_enable="NO"		# Set to YES to load ddb scripts at boot.
 ddb_config="/etc/ddb.conf"	# ddb(8) config file.
 devd_enable="YES" 	# Run devd, to trigger programs on device tree changes.
 devd_flags=""		# Additional flags for devd(8).
+#kld_list="" 		# Kernel modules to load after local disks are mounted
 kldxref_enable="NO"	# Build linker.hints files with kldxref(8).
 kldxref_clobber="NO"	# Overwrite old linker.hints at boot.
 kldxref_module_path=""	# Override kern.module_path. A ';'-delimited list.
diff --git a/etc/rc.d/Makefile b/etc/rc.d/Makefile
index 887db41c891a..ada10f8f388c 100644
--- a/etc/rc.d/Makefile
+++ b/etc/rc.d/Makefile
@@ -18,7 +18,7 @@ FILES=	DAEMON FILESYSTEMS LOGIN NETWORKING SERVERS \
 	ip6addrctl ipfilter ipfs ipfw ipmon \
 	ipnat ipsec ipxrouted \
 	jail \
-	kadmind kerberos keyserv kldxref kpasswdd \
+	kadmind kerberos keyserv kld kldxref kpasswdd \
 	ldconfig local localpkg lockd lpd \
 	mixer motd mountcritlocal mountcritremote mountlate \
 	mdconfig mdconfig2 mountd moused mroute6d mrouted msgs \
diff --git a/etc/rc.d/kld b/etc/rc.d/kld
new file mode 100755
index 000000000000..946ec6951ce1
--- /dev/null
+++ b/etc/rc.d/kld
@@ -0,0 +1,53 @@
+#!/bin/sh
+
+# Copyright (c) 2011 Douglas Barton
+# All rights reserved.
+#
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions
+# are met:
+# 1. Redistributions of source code must retain the above copyright
+#    notice, this list of conditions and the following disclaimer.
+# 2. Redistributions in binary form must reproduce the above copyright
+#    notice, this list of conditions and the following disclaimer in the
+#    documentation and/or other materials provided with the distribution.
+#
+# THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
+# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+# ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
+# FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+# DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+# OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+# HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+# LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+# OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+# SUCH DAMAGE.
+#
+# $FreeBSD$
+#
+# PROVIDE: kld
+# REQUIRE: FILESYSTEMS
+# KEYWORD: nojail
+
+. /etc/rc.subr
+
+name="kld"
+
+start_cmd="${name}_start"
+stop_cmd=':'
+
+kld_start()
+{
+	[ -n "$kld_list" ] || return
+
+	local _kld
+
+	echo 'Loading kernel modules:'
+	for _kld in $kld_list ; do
+		load_kld -e ${_kld}.ko $_kld
+	done
+}
+
+load_rc_config $name
+run_rc_command "$1"
diff --git a/etc/rc.d/var b/etc/rc.d/var
index 8e5bddefb84e..0655658bd967 100755
--- a/etc/rc.d/var
+++ b/etc/rc.d/var
@@ -28,7 +28,7 @@
 #
 
 # PROVIDE: var
-# REQUIRE: FILESYSTEMS
+# REQUIRE: FILESYSTEMS kld
 
 . /etc/rc.subr
 
diff --git a/share/man/man5/rc.conf.5 b/share/man/man5/rc.conf.5
index cf062c57c3be..fddb4f5e9301 100644
--- a/share/man/man5/rc.conf.5
+++ b/share/man/man5/rc.conf.5
@@ -24,7 +24,7 @@
 .\"
 .\" $FreeBSD$
 .\"
-.Dd April 27, 2011
+.Dd June 18, 2011
 .Dt RC.CONF 5
 .Os
 .Sh NAME
@@ -196,6 +196,14 @@ Configuration file for
 .Xr ddb 8 .
 Default
 .Pa /etc/ddb.conf .
+.It Va kld_list
+.Pq Vt str
+A list of kernel modules to load right after the local
+disks are mounted.
+Loading modules at this point in the boot process is
+much faster than doing it via
+.Pa /boot/loader.conf
+for those modules not necessary for mounting local disk.
 .It Va kldxref_enable
 .Pq Vt bool
 Set to