branch Attitude Adjustment

git-svn-id: svn://svn.openwrt.org/openwrt/branches/attitude_adjustment@33625 3c298f89-4303-0410-b956-a3cf2f4a3e73

8 files changed, 1025 insertions, 0 deletions

diff --git a/package/compcache/Config.in b/package/compcache/Config.in
new file mode 100644
index 000000000..b5f75d00d
--- /dev/null
+++ b/package/compcache/Config.in
@@ -0,0 +1,29 @@
+menu "Configuration"
+	depends on PACKAGE_compcache
+
+config COMPCACHE_ENABLE
+	bool "enabled on boot"
+	default n
+	help
+	  Enables compressed ram swap devices.
+
+config COMPCACHE_RAM_REPORTED
+	string "swap space reported to kernel in kb"
+	default "2048"
+	help
+	  This is the amount of memory that will be reported 
+	  to the kernel as swap. The real ram in use will differ, 
+	  because of lzo compression.
+	  Example:
+	    16 MB = 2048 KB 
+	    32 MB = 4098 KB
+
+config COMPCACHE_BACKUP_DEV
+	string "Backup device for compcache"
+	default ""
+	help
+	  Compcache will use this as a backup device for swap.
+	  Example:
+	         /dev/sda5
+
+endmenu
diff --git a/package/compcache/Makefile b/package/compcache/Makefile
new file mode 100644
index 000000000..5106293e8
--- /dev/null
+++ b/package/compcache/Makefile
@@ -0,0 +1,75 @@
+#
+# Copyright (C) 2009-2010 OpenWrt.org
+#
+# This is free software, licensed under the GNU General Public License v2.
+# See /LICENSE for more information.
+#
+
+include $(TOPDIR)/rules.mk
+include $(INCLUDE_DIR)/kernel.mk
+
+PKG_NAME:=compcache
+PKG_VERSION:=0.6.2
+PKG_RELEASE:=2
+PKG_SOURCE_URL:=http://compcache.googlecode.com/files/
+PKG_MD5SUM:=27aec78dc50e34fb800c74e879057743
+
+PKG_SOURCE:=$(PKG_NAME)-$(PKG_VERSION).tar.gz
+
+include $(INCLUDE_DIR)/package.mk
+
+define KernelPackage/ramzswap
+  SUBMENU:=Other modules
+  DEPENDS:=@BUSYBOX_CONFIG_SWAPONOFF
+  TITLE:=Driver for compressed ram swap device
+  VERSION:=$(LINUX_VERSION)-$(BOARD)-$(LINUX_RELEASE)+$(PKG_RELEASE)
+  FILES:=$(PKG_BUILD_DIR)/ramzswap.ko \
+	 $(PKG_BUILD_DIR)/sub-projects/compression/lzo-kmod/lzo1x.ko
+  URL:=http://code.google.com/p/compcache/
+endef
+
+define Package/compcache
+  SECTION:=util
+  CATEGORY:=Utilities
+  DEPENDS:=+kmod-ramzswap
+  TITLE:=Compressed ram swap device
+  URL:=http://code.google.com/p/compcache/
+  MENU:=1
+endef
+
+include $(INCLUDE_DIR)/kernel-defaults.mk
+
+LZO = sub-projects/compression/lzo-kmod
+RZSC = sub-projects/rzscontrol
+
+BUILDFLAGS:=-DCONFIG_RAMZSWAP_STATS \
+	    -I$(PKG_BUILD_DIR)/$(LZO) \
+	    -Wall
+
+RZSCFLAGS:=-I$(PKG_BUILD_DIR)/$(RZSC)/../include \
+	   -I$(PKG_BUILD_DIR)/$(RZSC)/../..
+
+define Build/Compile
+	$(MAKE) $(KERNEL_MAKEOPTS) EXTRA_CFLAGS="$(BUILDFLAGS)" M="$(PKG_BUILD_DIR)" modules
+	$(TARGET_CC) $(TARGET_CFLAGS) $(RZSCFLAGS) $(PKG_BUILD_DIR)/$(RZSC)/rzscontrol.c -o $(PKG_BUILD_DIR)/rzscontrol
+endef
+
+define Package/compcache/install
+	$(INSTALL_DIR) $(1)/etc/config
+	$(INSTALL_DATA) ./files/compcache.config $(1)/etc/config/compcache
+	$(SED) 's,%ENABLED%,$(if $(CONFIG_COMPCACHE_ENABLE),1,0),g' \
+	      -e 's,%RAM_REPORTED%,$(call qstrip,$(CONFIG_COMPCACHE_RAM_REPORTED)),g' \
+	      -e 's,%BACKUP_DEV%,$(call qstrip,$(CONFIG_COMPCACHE_BACKUP_DEV)),g' \
+	      $(1)/etc/config/compcache
+	$(INSTALL_DIR) $(1)/etc/init.d
+	$(INSTALL_BIN) ./files/compcache.init $(1)/etc/init.d/compcache
+	$(INSTALL_DIR) $(1)/sbin
+	$(INSTALL_BIN) $(PKG_BUILD_DIR)/rzscontrol $(1)/sbin/rzscontrol
+endef
+
+define Package/compcache/config
+	source "$(SOURCE)/Config.in"
+endef
+
+$(eval $(call BuildPackage,compcache))
+$(eval $(call KernelPackage,ramzswap))
diff --git a/package/compcache/files/compcache.config b/package/compcache/files/compcache.config
new file mode 100644
index 000000000..3faab3e14
--- /dev/null
+++ b/package/compcache/files/compcache.config
@@ -0,0 +1,4 @@
+config compcache
+	option 'enabled'	'%ENABLED%'
+	option 'size_kbytes'	'%RAM_REPORTED%'
+	option 'backup_dev'	'%BACKUP_DEV%'
diff --git a/package/compcache/files/compcache.init b/package/compcache/files/compcache.init
new file mode 100644
index 000000000..5939d9f61
--- /dev/null
+++ b/package/compcache/files/compcache.init
@@ -0,0 +1,48 @@
+#!/bin/sh /etc/rc.common
+# Copyright (C) 2008 OpenWrt.org
+START=14
+
+load_modules() {
+	local section="$1"
+	config_get "size_kbytes" "$section" "size_kbytes"
+	config_get "backup_dev" "$section" "backup_dev"
+	#CC_PARAM_STR="memlimit_kb=$1 backing_dev=$BACKING_DEV"
+	config_get_bool "enabled" "$section" "enabled" '1'
+	if [ "$enabled" -gt 0 ]; then
+		if [ "`cat /proc/swaps | grep 'ramzswap0'`" != "" ]; then
+			echo "compcache already loaded"
+		else
+			if [ "$backup_dev" != "" ]; then
+				params_set="memlimit_kb=$size_kbytes backing_swap=$backup_dev"
+			else
+				params_set="disksize_kb=$size_kbytes"
+			fi
+			if [ "`lsmod | grep 'ramzswap'`" == "" ]; then
+				insmod lzo1x
+				insmod ramzswap $params_set
+				sleep 2
+				swapon /dev/ramzswap0
+			fi
+		fi
+	fi
+}
+
+remove_modules() {
+	local section="$1"
+	config_get_bool "enabled" "$section" "enabled" '1'
+	if [ "$enabled" -gt 0 ]; then
+		[ "`cat /proc/swaps | grep 'ramzswap0'`" != "" ] && swapoff /dev/ramzswap0
+		[ "`lsmod | grep 'ramzswap'`" != "" ] && rmmod ramzswap &> /dev/null
+		[ "`lsmod | grep 'lzo1x'`" != "" ] && rmmod lzo1x &> /dev/null
+	fi
+}
+
+start() {
+	config_load "compcache"
+	config_foreach load_modules "compcache"
+}
+
+stop() {
+	config_load "compcache"
+	config_foreach remove_modules "compcache"
+}
diff --git a/package/compcache/patches/000-provide_lzo_kmod.patch b/package/compcache/patches/000-provide_lzo_kmod.patch
new file mode 100644
index 000000000..1dab08507
--- /dev/null
+++ b/package/compcache/patches/000-provide_lzo_kmod.patch
@@ -0,0 +1,647 @@
+--- a/Makefile
++++ b/Makefile
+@@ -1,14 +1,17 @@
+ KERNEL_BUILD_PATH ?= "/lib/modules/$(shell uname -r)/build"
+ 
+ XVM = sub-projects/allocators/xvmalloc-kmod
++LZO = sub-projects/compression/lzo-kmod
+ EXTRA_CFLAGS	:=	-DCONFIG_RAMZSWAP_STATS		\
+ 			-Wall
+ 
+-obj-m		+=	ramzswap.o
++obj-m		+=	ramzswap.o $(LZO)/lzo1x.o
+ ramzswap-objs	:=	ramzswap_drv.o $(XVM)/xvmalloc.o
++			
+ 
+ all:
+ 	make -C $(KERNEL_BUILD_PATH) M=$(PWD) modules
++	make -C $(KERNEL_BUILD_PATH) M=$(PWD)/$(LZO) modules
+ 	make -C sub-projects/rzscontrol
+ 
+ doc:
+@@ -16,5 +19,6 @@ doc:
+ 
+ clean:
+ 	make -C $(KERNEL_BUILD_PATH) M=$(PWD) clean
++	make -C $(KERNEL_BUILD_PATH) M=$(PWD)/$(LZO) clean
+ 	make -C sub-projects/rzscontrol clean
+ 	@rm -rf *.ko
+--- a/ramzswap_drv.c
++++ b/ramzswap_drv.c
+@@ -23,13 +23,13 @@
+ #include <linux/device.h>
+ #include <linux/genhd.h>
+ #include <linux/highmem.h>
+-#include <linux/lzo.h>
+ #include <linux/string.h>
+ #include <linux/swap.h>
+ #include <linux/swapops.h>
+ #include <linux/vmalloc.h>
+ #include <linux/version.h>
+ 
++#include "lzo.h"
+ #include "compat.h"
+ #include "ramzswap_drv.h"
+ 
+--- /dev/null
++++ b/sub-projects/compression/lzo-kmod/lzo1x.c
+@@ -0,0 +1,7 @@
++#include <linux/module.h>
++
++#include "lzo1x_compress.c"
++#include "lzo1x_decompress.c"
++
++MODULE_LICENSE("GPL");
++MODULE_DESCRIPTION("LZO1X Lib");
+--- /dev/null
++++ b/sub-projects/compression/lzo-kmod/lzo1x_compress.c
+@@ -0,0 +1,227 @@
++/*
++ *  LZO1X Compressor from MiniLZO
++ *
++ *  Copyright (C) 1996-2005 Markus F.X.J. Oberhumer <markus@oberhumer.com>
++ *
++ *  The full LZO package can be found at:
++ *  http://www.oberhumer.com/opensource/lzo/
++ *
++ *  Changed for kernel use by:
++ *  Nitin Gupta <nitingupta910@gmail.com>
++ *  Richard Purdie <rpurdie@openedhand.com>
++ */
++
++#include <linux/module.h>
++#include <linux/kernel.h>
++#include <asm/unaligned.h>
++
++#include "lzodefs.h"
++#include "lzo.h"
++
++static noinline size_t
++_lzo1x_1_do_compress(const unsigned char *in, size_t in_len,
++		unsigned char *out, size_t *out_len, void *wrkmem)
++{
++	const unsigned char * const in_end = in + in_len;
++	const unsigned char * const ip_end = in + in_len - M2_MAX_LEN - 5;
++	const unsigned char ** const dict = wrkmem;
++	const unsigned char *ip = in, *ii = ip;
++	const unsigned char *end, *m, *m_pos;
++	size_t m_off, m_len, dindex;
++	unsigned char *op = out;
++
++	ip += 4;
++
++	for (;;) {
++		dindex = ((size_t)(0x21 * DX3(ip, 5, 5, 6)) >> 5) & D_MASK;
++		m_pos = dict[dindex];
++
++		if (m_pos < in)
++			goto literal;
++
++		if (ip == m_pos || ((size_t)(ip - m_pos) > M4_MAX_OFFSET))
++			goto literal;
++
++		m_off = ip - m_pos;
++		if (m_off <= M2_MAX_OFFSET || m_pos[3] == ip[3])
++			goto try_match;
++
++		dindex = (dindex & (D_MASK & 0x7ff)) ^ (D_HIGH | 0x1f);
++		m_pos = dict[dindex];
++
++		if (m_pos < in)
++			goto literal;
++
++		if (ip == m_pos || ((size_t)(ip - m_pos) > M4_MAX_OFFSET))
++			goto literal;
++
++		m_off = ip - m_pos;
++		if (m_off <= M2_MAX_OFFSET || m_pos[3] == ip[3])
++			goto try_match;
++
++		goto literal;
++
++try_match:
++		if (get_unaligned((const unsigned short *)m_pos)
++				== get_unaligned((const unsigned short *)ip)) {
++			if (likely(m_pos[2] == ip[2]))
++					goto match;
++		}
++
++literal:
++		dict[dindex] = ip;
++		++ip;
++		if (unlikely(ip >= ip_end))
++			break;
++		continue;
++
++match:
++		dict[dindex] = ip;
++		if (ip != ii) {
++			size_t t = ip - ii;
++
++			if (t <= 3) {
++				op[-2] |= t;
++			} else if (t <= 18) {
++				*op++ = (t - 3);
++			} else {
++				size_t tt = t - 18;
++
++				*op++ = 0;
++				while (tt > 255) {
++					tt -= 255;
++					*op++ = 0;
++				}
++				*op++ = tt;
++			}
++			do {
++				*op++ = *ii++;
++			} while (--t > 0);
++		}
++
++		ip += 3;
++		if (m_pos[3] != *ip++ || m_pos[4] != *ip++
++				|| m_pos[5] != *ip++ || m_pos[6] != *ip++
++				|| m_pos[7] != *ip++ || m_pos[8] != *ip++) {
++			--ip;
++			m_len = ip - ii;
++
++			if (m_off <= M2_MAX_OFFSET) {
++				m_off -= 1;
++				*op++ = (((m_len - 1) << 5)
++						| ((m_off & 7) << 2));
++				*op++ = (m_off >> 3);
++			} else if (m_off <= M3_MAX_OFFSET) {
++				m_off -= 1;
++				*op++ = (M3_MARKER | (m_len - 2));
++				goto m3_m4_offset;
++			} else {
++				m_off -= 0x4000;
++
++				*op++ = (M4_MARKER | ((m_off & 0x4000) >> 11)
++						| (m_len - 2));
++				goto m3_m4_offset;
++			}
++		} else {
++			end = in_end;
++			m = m_pos + M2_MAX_LEN + 1;
++
++			while (ip < end && *m == *ip) {
++				m++;
++				ip++;
++			}
++			m_len = ip - ii;
++
++			if (m_off <= M3_MAX_OFFSET) {
++				m_off -= 1;
++				if (m_len <= 33) {
++					*op++ = (M3_MARKER | (m_len - 2));
++				} else {
++					m_len -= 33;
++					*op++ = M3_MARKER | 0;
++					goto m3_m4_len;
++				}
++			} else {
++				m_off -= 0x4000;
++				if (m_len <= M4_MAX_LEN) {
++					*op++ = (M4_MARKER
++						| ((m_off & 0x4000) >> 11)
++						| (m_len - 2));
++				} else {
++					m_len -= M4_MAX_LEN;
++					*op++ = (M4_MARKER
++						| ((m_off & 0x4000) >> 11));
++m3_m4_len:
++					while (m_len > 255) {
++						m_len -= 255;
++						*op++ = 0;
++					}
++
++					*op++ = (m_len);
++				}
++			}
++m3_m4_offset:
++			*op++ = ((m_off & 63) << 2);
++			*op++ = (m_off >> 6);
++		}
++
++		ii = ip;
++		if (unlikely(ip >= ip_end))
++			break;
++	}
++
++	*out_len = op - out;
++	return in_end - ii;
++}
++
++int lzo1x_1_compress(const unsigned char *in, size_t in_len, unsigned char *out,
++			size_t *out_len, void *wrkmem)
++{
++	const unsigned char *ii;
++	unsigned char *op = out;
++	size_t t;
++
++	if (unlikely(in_len <= M2_MAX_LEN + 5)) {
++		t = in_len;
++	} else {
++		t = _lzo1x_1_do_compress(in, in_len, op, out_len, wrkmem);
++		op += *out_len;
++	}
++
++	if (t > 0) {
++		ii = in + in_len - t;
++
++		if (op == out && t <= 238) {
++			*op++ = (17 + t);
++		} else if (t <= 3) {
++			op[-2] |= t;
++		} else if (t <= 18) {
++			*op++ = (t - 3);
++		} else {
++			size_t tt = t - 18;
++
++			*op++ = 0;
++			while (tt > 255) {
++				tt -= 255;
++				*op++ = 0;
++			}
++
++			*op++ = tt;
++		}
++		do {
++			*op++ = *ii++;
++		} while (--t > 0);
++	}
++
++	*op++ = M4_MARKER | 1;
++	*op++ = 0;
++	*op++ = 0;
++
++	*out_len = op - out;
++	return LZO_E_OK;
++}
++EXPORT_SYMBOL_GPL(lzo1x_1_compress);
++
++MODULE_LICENSE("GPL");
++MODULE_DESCRIPTION("LZO1X-1 Compressor");
++
+--- /dev/null
++++ b/sub-projects/compression/lzo-kmod/lzo1x_decompress.c
+@@ -0,0 +1,255 @@
++/*
++ *  LZO1X Decompressor from MiniLZO
++ *
++ *  Copyright (C) 1996-2005 Markus F.X.J. Oberhumer <markus@oberhumer.com>
++ *
++ *  The full LZO package can be found at:
++ *  http://www.oberhumer.com/opensource/lzo/
++ *
++ *  Changed for kernel use by:
++ *  Nitin Gupta <nitingupta910@gmail.com>
++ *  Richard Purdie <rpurdie@openedhand.com>
++ */
++
++#include <linux/module.h>
++#include <linux/kernel.h>
++#include <asm/byteorder.h>
++#include <asm/unaligned.h>
++
++#include "lzodefs.h"
++#include "lzo.h"
++
++#define HAVE_IP(x, ip_end, ip) ((size_t)(ip_end - ip) < (x))
++#define HAVE_OP(x, op_end, op) ((size_t)(op_end - op) < (x))
++#define HAVE_LB(m_pos, out, op) (m_pos < out || m_pos >= op)
++
++#define COPY4(dst, src)	\
++		put_unaligned(get_unaligned((const u32 *)(src)), (u32 *)(dst))
++
++int lzo1x_decompress_safe(const unsigned char *in, size_t in_len,
++			unsigned char *out, size_t *out_len)
++{
++	const unsigned char * const ip_end = in + in_len;
++	unsigned char * const op_end = out + *out_len;
++	const unsigned char *ip = in, *m_pos;
++	unsigned char *op = out;
++	size_t t;
++
++	*out_len = 0;
++
++	if (*ip > 17) {
++		t = *ip++ - 17;
++		if (t < 4)
++			goto match_next;
++		if (HAVE_OP(t, op_end, op))
++			goto output_overrun;
++		if (HAVE_IP(t + 1, ip_end, ip))
++			goto input_overrun;
++		do {
++			*op++ = *ip++;
++		} while (--t > 0);
++		goto first_literal_run;
++	}
++
++	while ((ip < ip_end)) {
++		t = *ip++;
++		if (t >= 16)
++			goto match;
++		if (t == 0) {
++			if (HAVE_IP(1, ip_end, ip))
++				goto input_overrun;
++			while (*ip == 0) {
++				t += 255;
++				ip++;
++				if (HAVE_IP(1, ip_end, ip))
++					goto input_overrun;
++			}
++			t += 15 + *ip++;
++		}
++		if (HAVE_OP(t + 3, op_end, op))
++			goto output_overrun;
++		if (HAVE_IP(t + 4, ip_end, ip))
++			goto input_overrun;
++
++		COPY4(op, ip);
++		op += 4;
++		ip += 4;
++		if (--t > 0) {
++			if (t >= 4) {
++				do {
++					COPY4(op, ip);
++					op += 4;
++					ip += 4;
++					t -= 4;
++				} while (t >= 4);
++				if (t > 0) {
++					do {
++						*op++ = *ip++;
++					} while (--t > 0);
++				}
++			} else {
++				do {
++					*op++ = *ip++;
++				} while (--t > 0);
++			}
++		}
++
++first_literal_run:
++		t = *ip++;
++		if (t >= 16)
++			goto match;
++		m_pos = op - (1 + M2_MAX_OFFSET);
++		m_pos -= t >> 2;
++		m_pos -= *ip++ << 2;
++
++		if (HAVE_LB(m_pos, out, op))
++			goto lookbehind_overrun;
++
++		if (HAVE_OP(3, op_end, op))
++			goto output_overrun;
++		*op++ = *m_pos++;
++		*op++ = *m_pos++;
++		*op++ = *m_pos;
++
++		goto match_done;
++
++		do {
++match:
++			if (t >= 64) {
++				m_pos = op - 1;
++				m_pos -= (t >> 2) & 7;
++				m_pos -= *ip++ << 3;
++				t = (t >> 5) - 1;
++				if (HAVE_LB(m_pos, out, op))
++					goto lookbehind_overrun;
++				if (HAVE_OP(t + 3 - 1, op_end, op))
++					goto output_overrun;
++				goto copy_match;
++			} else if (t >= 32) {
++				t &= 31;
++				if (t == 0) {
++					if (HAVE_IP(1, ip_end, ip))
++						goto input_overrun;
++					while (*ip == 0) {
++						t += 255;
++						ip++;
++						if (HAVE_IP(1, ip_end, ip))
++							goto input_overrun;
++					}
++					t += 31 + *ip++;
++				}
++				m_pos = op - 1;
++				m_pos -= le16_to_cpu(get_unaligned(
++					(const unsigned short *)ip)) >> 2;
++				ip += 2;
++			} else if (t >= 16) {
++				m_pos = op;
++				m_pos -= (t & 8) << 11;
++
++				t &= 7;
++				if (t == 0) {
++					if (HAVE_IP(1, ip_end, ip))
++						goto input_overrun;
++					while (*ip == 0) {
++						t += 255;
++						ip++;
++						if (HAVE_IP(1, ip_end, ip))
++							goto input_overrun;
++					}
++					t += 7 + *ip++;
++				}
++				m_pos -= le16_to_cpu(get_unaligned(
++					(const unsigned short *)ip)) >> 2;
++				ip += 2;
++				if (m_pos == op)
++					goto eof_found;
++				m_pos -= 0x4000;
++			} else {
++				m_pos = op - 1;
++				m_pos -= t >> 2;
++				m_pos -= *ip++ << 2;
++
++				if (HAVE_LB(m_pos, out, op))
++					goto lookbehind_overrun;
++				if (HAVE_OP(2, op_end, op))
++					goto output_overrun;
++
++				*op++ = *m_pos++;
++				*op++ = *m_pos;
++				goto match_done;
++			}
++
++			if (HAVE_LB(m_pos, out, op))
++				goto lookbehind_overrun;
++			if (HAVE_OP(t + 3 - 1, op_end, op))
++				goto output_overrun;
++
++			if (t >= 2 * 4 - (3 - 1) && (op - m_pos) >= 4) {
++				COPY4(op, m_pos);
++				op += 4;
++				m_pos += 4;
++				t -= 4 - (3 - 1);
++				do {
++					COPY4(op, m_pos);
++					op += 4;
++					m_pos += 4;
++					t -= 4;
++				} while (t >= 4);
++				if (t > 0)
++					do {
++						*op++ = *m_pos++;
++					} while (--t > 0);
++			} else {
++copy_match:
++				*op++ = *m_pos++;
++				*op++ = *m_pos++;
++				do {
++					*op++ = *m_pos++;
++				} while (--t > 0);
++			}
++match_done:
++			t = ip[-2] & 3;
++			if (t == 0)
++				break;
++match_next:
++			if (HAVE_OP(t, op_end, op))
++				goto output_overrun;
++			if (HAVE_IP(t + 1, ip_end, ip))
++				goto input_overrun;
++
++			*op++ = *ip++;
++			if (t > 1) {
++				*op++ = *ip++;
++				if (t > 2)
++					*op++ = *ip++;
++			}
++
++			t = *ip++;
++		} while (ip < ip_end);
++	}
++
++	*out_len = op - out;
++	return LZO_E_EOF_NOT_FOUND;
++
++eof_found:
++	*out_len = op - out;
++	return (ip == ip_end ? LZO_E_OK :
++		(ip < ip_end ? LZO_E_INPUT_NOT_CONSUMED : LZO_E_INPUT_OVERRUN));
++input_overrun:
++	*out_len = op - out;
++	return LZO_E_INPUT_OVERRUN;
++
++output_overrun:
++	*out_len = op - out;
++	return LZO_E_OUTPUT_OVERRUN;
++
++lookbehind_overrun:
++	*out_len = op - out;
++	return LZO_E_LOOKBEHIND_OVERRUN;
++}
++
++EXPORT_SYMBOL_GPL(lzo1x_decompress_safe);
++
++MODULE_LICENSE("GPL");
++MODULE_DESCRIPTION("LZO1X Decompressor");
++
+--- /dev/null
++++ b/sub-projects/compression/lzo-kmod/lzodefs.h
+@@ -0,0 +1,43 @@
++/*
++ *  lzodefs.h -- architecture, OS and compiler specific defines
++ *
++ *  Copyright (C) 1996-2005 Markus F.X.J. Oberhumer <markus@oberhumer.com>
++ *
++ *  The full LZO package can be found at:
++ *  http://www.oberhumer.com/opensource/lzo/
++ *
++ *  Changed for kernel use by:
++ *  Nitin Gupta <nitingupta910@gmail.com>
++ *  Richard Purdie <rpurdie@openedhand.com>
++ */
++
++#define LZO_VERSION		0x2020
++#define LZO_VERSION_STRING	"2.02"
++#define LZO_VERSION_DATE	"Oct 17 2005"
++
++#define M1_MAX_OFFSET	0x0400
++#define M2_MAX_OFFSET	0x0800
++#define M3_MAX_OFFSET	0x4000
++#define M4_MAX_OFFSET	0xbfff
++
++#define M1_MIN_LEN	2
++#define M1_MAX_LEN	2
++#define M2_MIN_LEN	3
++#define M2_MAX_LEN	8
++#define M3_MIN_LEN	3
++#define M3_MAX_LEN	33
++#define M4_MIN_LEN	3
++#define M4_MAX_LEN	9
++
++#define M1_MARKER	0
++#define M2_MARKER	64
++#define M3_MARKER	32
++#define M4_MARKER	16
++
++#define D_BITS		14
++#define D_MASK		((1u << D_BITS) - 1)
++#define D_HIGH		((D_MASK >> 1) + 1)
++
++#define DX2(p, s1, s2)	(((((size_t)((p)[2]) << (s2)) ^ (p)[1]) \
++							<< (s1)) ^ (p)[0])
++#define DX3(p, s1, s2, s3)	((DX2((p)+1, s2, s3) << (s1)) ^ (p)[0])
+--- /dev/null
++++ b/sub-projects/compression/lzo-kmod/lzo.h
+@@ -0,0 +1,44 @@
++#ifndef __LZO_H__
++#define __LZO_H__
++/*
++ *  LZO Public Kernel Interface
++ *  A mini subset of the LZO real-time data compression library
++ *
++ *  Copyright (C) 1996-2005 Markus F.X.J. Oberhumer <markus@oberhumer.com>
++ *
++ *  The full LZO package can be found at:
++ *  http://www.oberhumer.com/opensource/lzo/
++ *
++ *  Changed for kernel use by:
++ *  Nitin Gupta <nitingupta910@gmail.com>
++ *  Richard Purdie <rpurdie@openedhand.com>
++ */
++
++#define LZO1X_MEM_COMPRESS	(16384 * sizeof(unsigned char *))
++#define LZO1X_1_MEM_COMPRESS	LZO1X_MEM_COMPRESS
++
++#define lzo1x_worst_compress(x) ((x) + ((x) / 16) + 64 + 3)
++
++/* This requires 'workmem' of size LZO1X_1_MEM_COMPRESS */
++int lzo1x_1_compress(const unsigned char *src, size_t src_len,
++			unsigned char *dst, size_t *dst_len, void *wrkmem);
++
++/* safe decompression with overrun testing */
++int lzo1x_decompress_safe(const unsigned char *src, size_t src_len,
++			unsigned char *dst, size_t *dst_len);
++
++/*
++ * Return values (< 0 = Error)
++ */
++#define LZO_E_OK			0
++#define LZO_E_ERROR			(-1)
++#define LZO_E_OUT_OF_MEMORY		(-2)
++#define LZO_E_NOT_COMPRESSIBLE		(-3)
++#define LZO_E_INPUT_OVERRUN		(-4)
++#define LZO_E_OUTPUT_OVERRUN		(-5)
++#define LZO_E_LOOKBEHIND_OVERRUN	(-6)
++#define LZO_E_EOF_NOT_FOUND		(-7)
++#define LZO_E_INPUT_NOT_CONSUMED	(-8)
++#define LZO_E_NOT_YET_IMPLEMENTED	(-9)
++
++#endif
+--- /dev/null
++++ b/sub-projects/compression/lzo-kmod/Makefile
+@@ -0,0 +1,8 @@
++obj-m += lzo1x_compress.o lzo1x_decompress.o
++
++all:
++	make -C /lib/modules/$(shell uname -r)/build M=$(PWD) modules
++
++clean:
++	make -C /lib/modules/$(shell uname -r)/build M=$(PWD) clean
++
diff --git a/package/compcache/patches/001-lzo-speed.patch b/package/compcache/patches/001-lzo-speed.patch
new file mode 100644
index 000000000..130f79da6
--- /dev/null
+++ b/package/compcache/patches/001-lzo-speed.patch
@@ -0,0 +1,181 @@
+--- a/sub-projects/compression/lzo-kmod/lzo1x_compress.c
++++ b/sub-projects/compression/lzo-kmod/lzo1x_compress.c
+@@ -62,8 +62,12 @@ _lzo1x_1_do_compress(const unsigned char
+ 		goto literal;
+ 
+ try_match:
++#ifdef CONFIG_HAVE_EFFICIENT_UNALIGNED_ACCESS
+ 		if (get_unaligned((const unsigned short *)m_pos)
+ 				== get_unaligned((const unsigned short *)ip)) {
++#else
++		if (m_pos[0] == ip[0] && m_pos[1] == ip[1]) {
++#endif
+ 			if (likely(m_pos[2] == ip[2]))
+ 					goto match;
+ 		}
+@@ -94,9 +98,14 @@ match:
+ 				}
+ 				*op++ = tt;
+ 			}
+-			do {
+-				*op++ = *ii++;
+-			} while (--t > 0);
++			if (t >= 2 * 4) {
++				memcpy(op, ii, t);
++				op += t;
++				ii += t;
++			} else
++				do {
++					*op++ = *ii++;
++				} while (--t > 0);
+ 		}
+ 
+ 		ip += 3;
+@@ -208,9 +217,14 @@ int lzo1x_1_compress(const unsigned char
+ 
+ 			*op++ = tt;
+ 		}
+-		do {
+-			*op++ = *ii++;
+-		} while (--t > 0);
++		if (t >= 2 * 4) {
++			memcpy(op, ii, t);
++			op += t;
++			ii += t;
++		} else
++			do {
++				*op++ = *ii++;
++			} while (--t > 0);
+ 	}
+ 
+ 	*op++ = M4_MARKER | 1;
+@@ -224,4 +238,3 @@ EXPORT_SYMBOL_GPL(lzo1x_1_compress);
+ 
+ MODULE_LICENSE("GPL");
+ MODULE_DESCRIPTION("LZO1X-1 Compressor");
+-
+--- a/sub-projects/compression/lzo-kmod/lzo1x_decompress.c
++++ b/sub-projects/compression/lzo-kmod/lzo1x_decompress.c
+@@ -45,10 +45,7 @@ int lzo1x_decompress_safe(const unsigned
+ 			goto output_overrun;
+ 		if (HAVE_IP(t + 1, ip_end, ip))
+ 			goto input_overrun;
+-		do {
+-			*op++ = *ip++;
+-		} while (--t > 0);
+-		goto first_literal_run;
++		goto prep_first_literal_run;
+ 	}
+ 
+ 	while ((ip < ip_end)) {
+@@ -71,30 +68,27 @@ int lzo1x_decompress_safe(const unsigned
+ 		if (HAVE_IP(t + 4, ip_end, ip))
+ 			goto input_overrun;
+ 
+-		COPY4(op, ip);
+-		op += 4;
+-		ip += 4;
+-		if (--t > 0) {
+-			if (t >= 4) {
+-				do {
+-					COPY4(op, ip);
+-					op += 4;
+-					ip += 4;
+-					t -= 4;
+-				} while (t >= 4);
+-				if (t > 0) {
+-					do {
+-						*op++ = *ip++;
+-					} while (--t > 0);
+-				}
+-			} else {
++		t += (4 - 1);
++		if (t >= 2 * 4) {
++			memcpy(op, ip, t);
++			op += t;
++			ip += t;
++		} else {
++			do {
++				COPY4(op, ip);
++				op += 4;
++				ip += 4;
++				t -= 4;
++			} while (t >= 4);
++			if (t > 0) {
++prep_first_literal_run:
+ 				do {
+ 					*op++ = *ip++;
+ 				} while (--t > 0);
+ 			}
+ 		}
+ 
+-first_literal_run:
++//first_literal_run:
+ 		t = *ip++;
+ 		if (t >= 16)
+ 			goto match;
+@@ -139,8 +133,7 @@ match:
+ 					t += 31 + *ip++;
+ 				}
+ 				m_pos = op - 1;
+-				m_pos -= le16_to_cpu(get_unaligned(
+-					(const unsigned short *)ip)) >> 2;
++				m_pos -= get_unaligned_le16(ip) >> 2;
+ 				ip += 2;
+ 			} else if (t >= 16) {
+ 				m_pos = op;
+@@ -158,8 +151,7 @@ match:
+ 					}
+ 					t += 7 + *ip++;
+ 				}
+-				m_pos -= le16_to_cpu(get_unaligned(
+-					(const unsigned short *)ip)) >> 2;
++				m_pos -= get_unaligned_le16(ip) >> 2;
+ 				ip += 2;
+ 				if (m_pos == op)
+ 					goto eof_found;
+@@ -184,21 +176,33 @@ match:
+ 			if (HAVE_OP(t + 3 - 1, op_end, op))
+ 				goto output_overrun;
+ 
+-			if (t >= 2 * 4 - (3 - 1) && (op - m_pos) >= 4) {
+-				COPY4(op, m_pos);
+-				op += 4;
+-				m_pos += 4;
+-				t -= 4 - (3 - 1);
+-				do {
++			if (t >= 2 * 4 - (3 - 1)) {
++				/*
++				 *  Assume memcpy don't copy
++				 *  more than 32 bytes at once
++				 */
++				if ((op - m_pos) >= 32) {
++					t += (3 - 1);
++					memcpy(op, m_pos, t);
++					op += t;
++					m_pos += t;
++				} else if ((op - m_pos) >= 4) {
+ 					COPY4(op, m_pos);
+ 					op += 4;
+ 					m_pos += 4;
+-					t -= 4;
+-				} while (t >= 4);
+-				if (t > 0)
++					t -= 4 - (3 - 1);
+ 					do {
+-						*op++ = *m_pos++;
+-					} while (--t > 0);
++						COPY4(op, m_pos);
++						op += 4;
++						m_pos += 4;
++						t -= 4;
++					} while (t >= 4);
++					if (t > 0)
++						do {
++							*op++ = *m_pos++;
++						} while (--t > 0);
++				} else
++					goto copy_match;
+ 			} else {
+ copy_match:
+ 				*op++ = *m_pos++;
diff --git a/package/compcache/patches/002-kernel-2.6.34-compat.patch b/package/compcache/patches/002-kernel-2.6.34-compat.patch
new file mode 100644
index 000000000..5cd8129f8
--- /dev/null
+++ b/package/compcache/patches/002-kernel-2.6.34-compat.patch
@@ -0,0 +1,10 @@
+--- a/ramzswap_drv.c
++++ b/ramzswap_drv.c
+@@ -23,6 +23,7 @@
+ #include <linux/device.h>
+ #include <linux/genhd.h>
+ #include <linux/highmem.h>
++#include <linux/slab.h>
+ #include <linux/string.h>
+ #include <linux/swap.h>
+ #include <linux/swapops.h>
diff --git a/package/compcache/patches/003-kernel-3.x-compat.patch b/package/compcache/patches/003-kernel-3.x-compat.patch
new file mode 100644
index 000000000..70996ebe7
--- /dev/null
+++ b/package/compcache/patches/003-kernel-3.x-compat.patch
@@ -0,0 +1,31 @@
+Index: compcache-0.6.2/ramzswap_drv.c
+===================================================================
+--- compcache-0.6.2.orig/ramzswap_drv.c	2012-07-25 01:02:39.000000000 +0200
++++ compcache-0.6.2/ramzswap_drv.c	2012-07-25 01:04:29.270750850 +0200
+@@ -525,7 +525,7 @@
+ 
+ 	if (S_ISBLK(inode->i_mode)) {
+ 		bdev = I_BDEV(inode);
+-		ret = bd_claim(bdev, setup_backing_swap);
++		ret = blkdev_get(bdev, FMODE_READ | FMODE_WRITE | FMODE_EXCL, setup_backing_swap);
+ 		if (ret < 0) {
+ 			bdev = NULL;
+ 			goto bad_param;
+@@ -557,7 +557,7 @@
+ 
+ bad_param:
+ 	if (bdev)
+-		bd_release(bdev);
++		blkdev_put(bdev, FMODE_READ | FMODE_WRITE | FMODE_EXCL);
+ 	filp_close(swap_file, NULL);
+ 
+ out:
+@@ -1097,7 +1097,7 @@
+ 	/* Close backing swap device, if present */
+ 	if (rzs->backing_swap) {
+ 		if (is_backing_blkdev)
+-			bd_release(rzs->backing_swap);
++			blkdev_put(rzs->backing_swap, FMODE_READ | FMODE_WRITE | FMODE_EXCL);
+ 		filp_close(rzs->swap_file, NULL);
+ 		rzs->backing_swap = NULL;
+ 		memset(rzs->backing_swap_name, 0, MAX_SWAP_NAME_LEN);