From 42fb9d8fc5e1bc0591a279a23f166f460bcc8c90 Mon Sep 17 00:00:00 2001
From: Steve Kondik <shade@chemlab.org>
Date: Sat, 4 Jan 2014 16:58:59 -0800
Subject: [PATCH] cm: Remove legacy compcache stuff

 * Remove all this stuff.  If a device wants ZRAM, it should be
   enabled by the maintainer and properly configured and tuned.
 * This stuff currently causes a conflict with the ZRAM support
   added in Kitkat. Kill it.

Change-Id: Ib2488ea4463e32ec44b65fe786f732145b5b6e23
---
 config/common.mk                     |  5 ---
 prebuilt/common/bin/compcache        | 53 ----------------------------
 prebuilt/common/bin/handle_compcache | 31 ----------------
 prebuilt/common/etc/init.local.rc    |  7 ----
 4 files changed, 96 deletions(-)
 delete mode 100644 prebuilt/common/bin/compcache
 delete mode 100644 prebuilt/common/bin/handle_compcache

diff --git a/config/common.mk b/config/common.mk
index 53b321ad..64e0d3c4 100644
--- a/config/common.mk
+++ b/config/common.mk
@@ -97,11 +97,6 @@ PRODUCT_COPY_FILES += \
 PRODUCT_COPY_FILES += \
     vendor/cm/prebuilt/common/etc/init.local.rc:root/init.cm.rc
 
-# Compcache/Zram support
-PRODUCT_COPY_FILES += \
-    vendor/cm/prebuilt/common/bin/compcache:system/bin/compcache \
-    vendor/cm/prebuilt/common/bin/handle_compcache:system/bin/handle_compcache
-
 # Bring in camera effects
 PRODUCT_COPY_FILES +=  \
     vendor/cm/prebuilt/common/media/LMprec_508.emd:system/media/LMprec_508.emd \
diff --git a/prebuilt/common/bin/compcache b/prebuilt/common/bin/compcache
deleted file mode 100644
index bb3a3495..00000000
--- a/prebuilt/common/bin/compcache
+++ /dev/null
@@ -1,53 +0,0 @@
-#!/system/bin/sh
-#
-# Compcache manager
-# shade@chemlab.org (cyanogen)
-#
-
-isramzswap="$(find /system/lib/modules/ -name ramzswap.ko 2>/dev/null)"
-isramzswapbuiltin="$(ls -l /dev/block/ramzswap0 2>/dev/null)"
-
-if [ -n "$isramzswap$isramzswapbuiltin" ] ; then
-    MODULE=ramzswap
-    DEV=/dev/block/ramzswap0
-else
-    DEV=/dev/block/zram0
-    MODULE=zram
-    SYSFS_PATH=/sys/block/zram0
-fi
-
-case "$1" in
-   start)
-      echo 3 > /proc/sys/vm/drop_caches
-      echo 30 > /proc/sys/vm/swappiness
-      modprobe $MODULE
-      if [ $MODULE = ramzswap ]; then
-          rzscontrol $DEV --disksize_kb=$2 --init
-      else
-          echo "$(($2 * 1024))" > $SYSFS_PATH/disksize
-          mkswap $DEV >/dev/null
-      fi
-      swapon $DEV
-   ;;
-
-   stop)
-      swapoff $DEV >/dev/null 2>&1
-      rmmod $MODULE >/dev/null 2>&1
-   ;;
-   stats)
-     if [ $MODULE = ramzswap ]; then
-         rzscontrol $DEV --stats
-     else
-         cd $SYSFS_PATH && for i in * ; do
-             echo -n "$i:" 
-             cat $i
-         done
-     fi
-   ;;
-   *)
-      echo "Usage: $0 {start <size>|stop|stats}"
-      exit 1
-esac
-
-exit 0
-
diff --git a/prebuilt/common/bin/handle_compcache b/prebuilt/common/bin/handle_compcache
deleted file mode 100644
index 21822d0f..00000000
--- a/prebuilt/common/bin/handle_compcache
+++ /dev/null
@@ -1,31 +0,0 @@
-#!/system/bin/sh
-#
-# Compcache handler
-# Decides whether or not Compcache is enabled
-#
-MEMTOTAL=$( awk '{ if ($1 eq "MemTotal:") print $2 ;exit }' </proc/meminfo )
-
-if [ `getprop persist.service.zram` == 1 ];
-then
-  PROP=`getprop ro.zram.default`
-  setprop persist.service.zram $PROP
-fi
-
-if [ -e /data/property/persist.service.zram ];
-then
-  PROP=`getprop persist.service.zram`
-else
-  PROP=`getprop ro.zram.default`
-  setprop persist.service.zram $PROP
-fi
-
-if [ $PROP != 0 ]
-then
-  CCSIZE=$(($(($MEMTOTAL * $PROP)) / 100))
-  `dirname $0`/compcache start $CCSIZE
-else
-  `dirname $0`/compcache stop
-fi
-
-exit 0
-
diff --git a/prebuilt/common/etc/init.local.rc b/prebuilt/common/etc/init.local.rc
index 5b1db3b5..2ce5121c 100644
--- a/prebuilt/common/etc/init.local.rc
+++ b/prebuilt/common/etc/init.local.rc
@@ -101,13 +101,6 @@ on property:service.adb.tcp.port=-1
     stop adbd
     start adbd
 
-# Compcache - handle at boot
-service compcache /system/bin/handle_compcache
-    class main
-    user root
-    group root
-    oneshot
-
 # sysinit (/system/etc/init.d)
 service sysinit /system/bin/sysinit
     user root