IS_BCMHND=`nvram get rc_support|grep -i bcmhnd`
SWAP_THRESHOLD=`nvram get apps_swap_threshold`
SWAP_FILE=`nvram get apps_swap_file`
SWAP_SIZE=`nvram get apps_swap_size`
USB_NAME=`nvram get usb_path1_act`
USB_PATH=/tmp/mnt/$USB_NAME
if [ -z "$1" ]; then
USB_PATH=/tmp/mnt/$USB_NAME
else
USB_PATH=$1
fi
if [ -z "$2" ]; then
SWAP_ENABLE=`nvram get apps_swap_enable`
else
SWAP_ENABLE=$2
fi
echo "USB_PATH :" $USB_PATH
echo "SWAP_ENABLE :" $SWAP_ENABLE
echo "SWAP_THRESHOLD :" $SWAP_THRESHOLD
echo "SWAP_SIZE :" $SWAP_SIZE
if [ "$SWAP_ENABLE" != "1" ]; then
echo "Disable to swap!"
if [ -e "$USB_PATH/$SWAP_FILE" ]; then
swapoff $USB_PATH/$SWAP_FILE
rm -rf $USB_PATH/$SWAP_FILE
if [ -z "$IS_BCMHND" ]; then
echo 1 > /proc/sys/vm/drop_caches
fi
fi
else
mem_size=`free |sed '1,3d' |awk '{print $4}'`
if [ "$SWAP_THRESHOLD" == "" ] || [ $mem_size -lt $SWAP_THRESHOLD ]; then
pool_size=`df /dev/$APPS_DEV |sed '1d' |awk '{print $4}'`
if [ $pool_size -gt $SWAP_SIZE ]; then
if [ -e "$USB_PATH/$SWAP_FILE" ]; then
swapoff $USB_PATH/$SWAP_FILE
rm -rf $USB_PATH/$SWAP_FILE
fi
swap_count=`expr $SWAP_SIZE / 1000 - 1`
echo "dd if=/dev/zero of=$USB_PATH/$SWAP_FILE bs=1M count=$swap_count"
dd if=/dev/zero of=$USB_PATH/$SWAP_FILE bs=1M count=$swap_count
echo "mkswap $USB_PATH/$SWAP_FILE"
mkswap $USB_PATH/$SWAP_FILE
echo "swapon $USB_PATH/$SWAP_FILE"
swapon $USB_PATH/$SWAP_FILE
else
SWAP_SIZE=$(($pool_size -$pool_size % 10000))
echo "pool_size is " $pool_size
echo "No enough partition size! Change SWAP_SIZE to" $SWAP_SIZE
if [ $pool_size -gt $SWAP_SIZE ]; then
if [ -e "$USB_PATH/$SWAP_FILE" ]; then
swapoff $USB_PATH/$SWAP_FILE
rm -rf $USB_PATH/$SWAP_FILE
fi
swap_count=`expr $SWAP_SIZE / 1000 - 1`
echo "dd if=/dev/zero of=$USB_PATH/$SWAP_FILE bs=1M count=$swap_count"
dd if=/dev/zero of=$USB_PATH/$SWAP_FILE bs=1M count=$swap_count
echo "mkswap $USB_PATH/$SWAP_FILE"
mkswap $USB_PATH/$SWAP_FILE
echo "swapon $USB_PATH/$SWAP_FILE"
swapon $USB_PATH/$SWAP_FILE
else
echo "No enough partition size! Can't crate swap!"
exit 1
fi
fi
if [ -z "$IS_BCMHND" ]; then
echo 1 > /proc/sys/vm/drop_caches
fi
fi
fi
