saving uncommitted changes in /etc prior to emerge run

init.d/swapfiles

@@ -0,0 +1,39 @@
+#!/sbin/runscript
+# Copyright (c) 2007-2009 Roy Marples <roy@marples.name>
+# Released under the 2-clause BSD license.
+
+depend()
+{
+	need localmount
+	keyword -jail -openvz -prefix -vserver -lxc
+}
+
+start()
+{
+	ebegin "Activating additional swap space"
+	case "$RC_UNAME" in
+		NetBSD|OpenBSD) swapctl -A -t noblk >/dev/null;;
+		*)		swapon -a >/dev/null;;
+	esac
+	eend 0 # If swapon has nothing todo it errors, so always return 0
+}
+
+stop()
+{
+	ebegin "Deactivating additional swap space"
+	case "$RC_UNAME" in
+		Linux)
+			if [ -e /proc/swaps ]; then
+				while read filename type rest; do
+					case "$type" in
+						file) swapoff $filename >/dev/null;;
+					esac
+					case "$filename" in
+						/dev/loop*) swapoff $filename >/dev/null;;
+					esac
+				done < /proc/swaps
+			fi
+			;;
+	esac
+	eend 0
+}