Add support for mounting zfs filesystems to mountall script. ZFS configuration

is stored in /etc/zpool.cache and it is automatically loaded to kernel from
filesystem. Filesystems are then configured accordingly to their properties
loaded from cache file.

etc/rc.d/mountall

@@ -1,6 +1,6 @@
 #!/bin/sh
 #
-# $NetBSD: mountall,v 1.6 2008/12/01 14:47:14 tsutsui Exp $
+# $NetBSD: mountall,v 1.7 2009/10/05 22:39:27 haad Exp $
 #
 
 # REQUIRE: mountcritremote named ypbind
@@ -9,8 +9,40 @@
 $_rc_subr_loaded . /etc/rc.subr
 
 name="mountall"
-start_cmd="echo 'Mounting all filesystems...'; mount -a"
+start_cmd="mountall_start"
-stop_cmd="echo 'Unmounting all filesystems...'; umount -a"
+stop_cmd="mountall_stop"
+
+mountall_start()
+{
+	echo 'Mounting all filesystems...'
+	if [ -f /etc/zfs/zpool.cache ]; then
+		# Get ZFS module loaded (and thereby, zvols created).
+		zfs list > /dev/null 2>&1
+		# Mount file systems noted in fstab.
+		mount -a
+		# Mount ZFS file systems.
+		zfs mount -a
+	else
+		# Mount file systems noted in fstab.
+		mount -a
+	fi
+}
+
+mountall_stop()
+{
+	echo 'Unmounting all filesystems...'
+	if [ -f /etc/zfs/zpool.cache ]; then
+		# Unmount ZFS file systems.
+		zfs unmount -a
+		# Unmount file systems noted in fstab.
+		umount -a
+		# Unload ZFS module, so disk devices are closed.
+		modunload zfs
+	else
+		# Otherwise, just deal with fstab.
+		umount -a
+	fi
+}
 
 load_rc_config $name
 run_rc_command "$1"