base-files: Added support for swap configuration in /etc/config/fstab

git-svn-id: svn://svn.openwrt.org/openwrt/trunk@8947 3c298f89-4303-0410-b956-a3cf2f4a3e73

2 files changed, 26 insertions, 0 deletions

diff --git a/package/base-files/files/etc/config/fstab b/package/base-files/files/etc/config/fstab
index 28bb705a49..eccf0ce69b 100644
--- a/package/base-files/files/etc/config/fstab
+++ b/package/base-files/files/etc/config/fstab
@@ -4,3 +4,7 @@ config mount
 	option fstype	ext3
 	option options	rw,sync
 	option enabled	0
+
+config swap
+	option device	/dev/sda2
+	option enabled	0
diff --git a/package/base-files/files/etc/init.d/fstab b/package/base-files/files/etc/init.d/fstab
index 2a63a5b1bf..b96e0c8a54 100755
--- a/package/base-files/files/etc/init.d/fstab
+++ b/package/base-files/files/etc/init.d/fstab
@@ -20,6 +20,16 @@ do_mount() {
 	}
 }
 
+do_swapon() {
+	local cfg="$1"
+	config_get device "$cfg" device
+	[ -n "device" ] || return 0
+	config_get_bool enabled "$cfg" "enabled" '1'
+	[ "$enabled" -gt 0 ] && [ -x /usr/sbin/swapon ] && {
+	  /usr/sbin/swapon $device
+	}
+}
+
 do_unmount() {
 	local cfg="$1"
 	config_get target "$cfg" target
@@ -30,13 +40,25 @@ do_unmount() {
 	}
 }
 	
+do_swapoff() {
+	local cfg="$1"
+	config_get device "$cfg" device
+	[ -n "device" ] || return 0
+	config_get_bool enabled "$cfg" "enabled" '1'
+	[ "$enabled" -gt 0 ] && [ -x /usr/sbin/swapoff ] && {
+	  /usr/sbin/swapoff $device
+	}
+}
+
 start() {
 	config_load fstab
 	config_foreach do_mount mount
+	config_foreach do_swapon swap
 }
 
 stop() {
 	config_load fstab
 	config_foreach do_unmount mount
+	config_foreach do_swapoff swap
 }