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-rw-r--r--package/compcache/Config.in30
-rw-r--r--package/compcache/Makefile36
-rw-r--r--package/compcache/files/compcache.config5
-rw-r--r--package/compcache/files/compcache.init28
-rw-r--r--package/compcache/patches/000-provide_lzo_kmod.patch662
-rw-r--r--package/compcache/patches/001-lzo-speed.patch32
-rw-r--r--package/compcache/patches/002-compact_lzo-codec.patch30
-rw-r--r--package/compcache/patches/100-use_register_width.patch24
-rw-r--r--package/compcache/patches/200-av_compress_ratio.patch39
9 files changed, 813 insertions, 73 deletions
diff --git a/package/compcache/Config.in b/package/compcache/Config.in
new file mode 100644
index 000000000..9904237ed
--- /dev/null
+++ b/package/compcache/Config.in
@@ -0,0 +1,30 @@
+# compcache configuration
+
+config COMPCACHE_ENABLE
+ bool "enabled on boot"
+ default n
+ depends on PACKAGE_kmod-compcache
+ help
+ Enables compressed ram swap devices.
+
+config COMPCACHE_RAM_REPORTED
+ string "swap space reported to kernel in kb"
+ depends on PACKAGE_kmod-compcache
+ 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"
+ depends on PACKAGE_kmod-compcache
+ default ""
+ help
+ Compcache will use this as a backup device for swap.
+ Example:
+ /dev/sda5
+
diff --git a/package/compcache/Makefile b/package/compcache/Makefile
index a4d845100..8ca581b3d 100644
--- a/package/compcache/Makefile
+++ b/package/compcache/Makefile
@@ -1,21 +1,19 @@
#
-# Copyright (C) 2006 OpenWrt.org
+# Copyright (C) 2009 OpenWrt.org
#
# This is free software, licensed under the GNU General Public License v2.
# See /LICENSE for more information.
#
-# $Id: Makefile 6562 2009-01-21 11:19:24 ghd $
+# $Id: Makefile 6562 2009-10-05 08:30:14 ghd $
include $(TOPDIR)/rules.mk
include $(INCLUDE_DIR)/kernel.mk
PKG_NAME:=compcache
-PKG_VERSION:=0.5
+PKG_VERSION:=0.5.4
PKG_RELEASE:=$(PKG_VERSION)-1
PKG_SOURCE_URL:=http://compcache.googlecode.com/files/
-PKG_MD5SUM:=eea73324e9e69178866f6c0fbc852f1f
-
-#PKG_BUILD_DIR:=$(KERNEL_BUILD_DIR)/$(PKG_NAME)
+PKG_MD5SUM:=e83535925a014ac34e1eaeb4f7a2f49a
PKG_SOURCE:=$(PKG_NAME)-$(PKG_VERSION).tar.gz
@@ -26,18 +24,18 @@ define KernelPackage/compcache
DEPENDS:=@LINUX_2_6 @BUSYBOX_CONFIG_SWAPONOFF
TITLE:=Driver for compressed ram swap device
VERSION:=$(LINUX_VERSION)-$(BOARD)-$(LINUX_RELEASE)+$(PKG_RELEASE)
- FILES:=$(PKG_BUILD_DIR)/compcache.$(LINUX_KMOD_SUFFIX) \
- $(PKG_BUILD_DIR)/sub-projects/compression/lzo-kmod/lzo1x.$(LINUX_KMOD_SUFFIX) \
- $(PKG_BUILD_DIR)/sub-projects/allocators/xvmalloc-kmod/xvmalloc.$(LINUX_KMOD_SUFFIX)
-# AUTOLOAD:=$(call AutoLoad,10,xvmalloc lzo1x compcache+compcache_size_kbytes=2048)
+ FILES:=$(PKG_BUILD_DIR)/ramzswap.$(LINUX_KMOD_SUFFIX) \
+ $(PKG_BUILD_DIR)/sub-projects/compression/lzo-kmod/lzo1x.$(LINUX_KMOD_SUFFIX) \
+ $(PKG_BUILD_DIR)/sub-projects/allocators/xvmalloc-kmod/xvmalloc.$(LINUX_KMOD_SUFFIX)
endef
-BUILDFLAGS:=-DCONFIG_BLK_DEV_COMPCACHE_DEBUG=0 \
- -DCONFIG_BLK_DEV_COMPCACHE_STATS=1 \
- -DCONFIG_XV_DEBUG=0 \
- -DCONFIG_XV_STATS=1 \
- -g -Wall
+XVM = sub-projects/allocators/xvmalloc-kmod
+LZO = sub-projects/compression/lzo-kmod
+BUILDFLAGS:=-DCONFIG_BLK_DEV_RAMZSWAP_STATS \
+ -I$(PKG_BUILD_DIR)/$(XVM) \
+ -I$(PKG_BUILD_DIR)/$(LZO) \
+ -g -Wall
define Build/Compile
$(MAKE) -C "$(LINUX_DIR)" \
@@ -52,8 +50,16 @@ endef
define KernelPackage/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 $(1)/etc/init.d/compcache
endef
+define KernelPackage/compcache/config
+ source "$(SOURCE)/Config.in"
+endef
+
$(eval $(call KernelPackage,compcache))
diff --git a/package/compcache/files/compcache.config b/package/compcache/files/compcache.config
index 96ee19284..3faab3e14 100644
--- a/package/compcache/files/compcache.config
+++ b/package/compcache/files/compcache.config
@@ -1,3 +1,4 @@
config compcache
- option 'enabled' '0'
- option 'size_kbytes' '2048'
+ 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
index 5c85e5ddd..b9406d108 100644
--- a/package/compcache/files/compcache.init
+++ b/package/compcache/files/compcache.init
@@ -1,18 +1,28 @@
#!/bin/sh /etc/rc.common
# Copyright (C) 2008 OpenWrt.org
-START=19
+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 [ "`lsmod | grep 'compcache'`" != "" ]; then
- echo "compcache allready loaded"
+ if [ "`cat /proc/swaps | grep 'ramzswap0'`" != "" ]; then
+ echo "compcache already loaded"
else
- insmod xvmalloc
- insmod lzo1x
- insmod compcache compcache_size_kbytes=$size_kbytes
+ if [ "$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 xvmalloc
+ insmod lzo1x
+ insmod ramzswap $params_set
+ swapon /dev/ramzswap0
+ fi
fi
fi
}
@@ -22,9 +32,9 @@ remove_modules() {
config_get_bool "enabled" "$section" "enabled" '1'
if [ "$enabled" -gt 0 ]; then
[ "`cat /proc/swaps | grep 'ramzswap0'`" != "" ] && swapoff /dev/ramzswap0
- [ "`lsmod | grep 'compcache'`" != "" ] && rmmod compcache > /dev/null
- [ "`lsmod | grep 'lzo1x'`" != "" ] && rmmod lzo1x > /dev/null
- [ "`lsmod | grep 'xvmalloc'`" != "" ] && rmmod xvmalloc > /dev/null
+ [ "`lsmod | grep 'ramzswap'`" != "" ] && rmmod ramzswap &> /dev/null
+ [ "`lsmod | grep 'lzo1x'`" != "" ] && rmmod lzo1x &> /dev/null
+ [ "`lsmod | grep 'xvmalloc'`" != "" ] && rmmod xvmalloc &> /dev/null
fi
}
diff --git a/package/compcache/patches/000-provide_lzo_kmod.patch b/package/compcache/patches/000-provide_lzo_kmod.patch
new file mode 100644
index 000000000..1ad4fb63a
--- /dev/null
+++ b/package/compcache/patches/000-provide_lzo_kmod.patch
@@ -0,0 +1,662 @@
+diff -uNr compcache-0.5.4-old/Makefile compcache-0.5.4/Makefile
+--- compcache-0.5.4-old/Makefile 2009-10-17 08:49:42.000000000 +0200
++++ compcache-0.5.4/Makefile 2009-10-17 09:39:34.000000000 +0200
+@@ -1,19 +1,26 @@
+ KERNEL_BUILD_PATH ?= "/lib/modules/$(shell uname -r)/build"
+
+ XVM = sub-projects/allocators/xvmalloc-kmod
+-EXTRA_CFLAGS := -DCONFIG_BLK_DEV_RAMZSWAP_STATS \
+- -I$(PWD)/$(XVM) \
++LZO = sub-projects/compression/lzo-kmod
++
++EXTRA_CFLAGS += -DCONFIG_BLK_DEV_RAMZSWAP_STATS \
++ -I$(PWD)/$(XVM) \
++ -I$(PWD)/$(LZO) \
+ -g -Wall
+
+ obj-m += $(XVM)/xvmalloc.o \
++ $(LZO)/lzo1x.o \
+ ramzswap.o
+
+ all:
+ make -C $(KERNEL_BUILD_PATH) M=$(PWD)/$(XVM) modules
++ make -C $(KERNEL_BUILD_PATH) M=$(PWD)/$(LZO) modules
+ make -C $(KERNEL_BUILD_PATH) M=$(PWD) modules
+ @ln -sf $(XVM)/xvmalloc.ko
++ @ln -sf $(LZO)/xvmalloc.ko
+
+ clean:
+ make -C $(KERNEL_BUILD_PATH) M=$(PWD) clean
+ make -C $(KERNEL_BUILD_PATH) M=$(PWD)/$(XVM) clean
++ make -C $(KERNEL_BUILD_PATH) M=$(PWD)/$(LZO) clean
+ @rm -rf *.ko
+diff -uNr compcache-0.5.4-old/ramzswap.c compcache-0.5.4/ramzswap.c
+--- compcache-0.5.4-old/ramzswap.c 2009-10-17 08:50:06.000000000 +0200
++++ compcache-0.5.4/ramzswap.c 2009-10-17 09:35:59.000000000 +0200
+@@ -20,7 +20,6 @@
+ #include <linux/device.h>
+ #include <linux/genhd.h>
+ #include <linux/highmem.h>
+-#include <linux/lzo.h>
+ #include <linux/mutex.h>
+ #include <linux/proc_fs.h>
+ #include <linux/string.h>
+diff -uNr compcache-0.5.4-old/ramzswap.h compcache-0.5.4/ramzswap.h
+--- compcache-0.5.4-old/ramzswap.h 2009-10-17 08:50:06.000000000 +0200
++++ compcache-0.5.4/ramzswap.h 2009-10-17 09:40:45.000000000 +0200
+@@ -16,6 +16,7 @@
+ #define _RAMZSWAP_H_
+
+ #include "xvmalloc.h"
++#include "lzo.h"
+
+ /*
+ * Stored at beginning of each compressed object.
+diff -uNr compcache-0.5.4-old/sub-projects/compression/lzo-kmod/lzo1x.c compcache-0.5.4/sub-projects/compression/lzo-kmod/lzo1x.c
+--- compcache-0.5.4-old/sub-projects/compression/lzo-kmod/lzo1x.c 1970-01-01 01:00:00.000000000 +0100
++++ compcache-0.5.4/sub-projects/compression/lzo-kmod/lzo1x.c 2009-10-17 09:35:59.000000000 +0200
+@@ -0,0 +1,7 @@
++#include <linux/module.h>
++
++#include "lzo1x_compress.c"
++#include "lzo1x_decompress.c"
++
++MODULE_LICENSE("GPL");
++MODULE_DESCRIPTION("LZO1X Lib");
+diff -uNr compcache-0.5.4-old/sub-projects/compression/lzo-kmod/lzo1x_compress.c compcache-0.5.4/sub-projects/compression/lzo-kmod/lzo1x_compress.c
+--- compcache-0.5.4-old/sub-projects/compression/lzo-kmod/lzo1x_compress.c 1970-01-01 01:00:00.000000000 +0100
++++ compcache-0.5.4/sub-projects/compression/lzo-kmod/lzo1x_compress.c 2009-10-17 09:35:59.000000000 +0200
+@@ -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");
++
+diff -uNr compcache-0.5.4-old/sub-projects/compression/lzo-kmod/lzo1x_decompress.c compcache-0.5.4/sub-projects/compression/lzo-kmod/lzo1x_decompress.c
+--- compcache-0.5.4-old/sub-projects/compression/lzo-kmod/lzo1x_decompress.c 1970-01-01 01:00:00.000000000 +0100
++++ compcache-0.5.4/sub-projects/compression/lzo-kmod/lzo1x_decompress.c 2009-10-17 09:35:59.000000000 +0200
+@@ -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");
++
+diff -uNr compcache-0.5.4-old/sub-projects/compression/lzo-kmod/lzodefs.h compcache-0.5.4/sub-projects/compression/lzo-kmod/lzodefs.h
+--- compcache-0.5.4-old/sub-projects/compression/lzo-kmod/lzodefs.h 1970-01-01 01:00:00.000000000 +0100
++++ compcache-0.5.4/sub-projects/compression/lzo-kmod/lzodefs.h 2009-10-17 09:35:59.000000000 +0200
+@@ -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])
+diff -uNr compcache-0.5.4-old/sub-projects/compression/lzo-kmod/lzo.h compcache-0.5.4/sub-projects/compression/lzo-kmod/lzo.h
+--- compcache-0.5.4-old/sub-projects/compression/lzo-kmod/lzo.h 1970-01-01 01:00:00.000000000 +0100
++++ compcache-0.5.4/sub-projects/compression/lzo-kmod/lzo.h 2009-10-17 09:35:59.000000000 +0200
+@@ -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
+diff -uNr compcache-0.5.4-old/sub-projects/compression/lzo-kmod/Makefile compcache-0.5.4/sub-projects/compression/lzo-kmod/Makefile
+--- compcache-0.5.4-old/sub-projects/compression/lzo-kmod/Makefile 1970-01-01 01:00:00.000000000 +0100
++++ compcache-0.5.4/sub-projects/compression/lzo-kmod/Makefile 2009-10-17 09:35:59.000000000 +0200
+@@ -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
index df27b9bb6..59efe097c 100644
--- a/package/compcache/patches/001-lzo-speed.patch
+++ b/package/compcache/patches/001-lzo-speed.patch
@@ -1,6 +1,6 @@
-diff -uNr compcache-0.5/sub-projects/compression/lzo-kmod/lzo1x_compress.c compcache-0.5/sub-projects/compression/lzo-kmod/lzo1x_compress.c
---- compcache-0.5/sub-projects/compression/lzo-kmod/lzo1x_compress.c 2008-08-13 06:33:34.000000000 +0200
-+++ compcache-0.5/sub-projects/compression/lzo-kmod/lzo1x_compress.c 2009-01-21 08:00:35.000000000 +0100
+diff -uNr compcache-0.5.3-org/sub-projects/compression/lzo-kmod/lzo1x_compress.c compcache-0.5.3/sub-projects/compression/lzo-kmod/lzo1x_compress.c
+--- compcache-0.5.3-org/sub-projects/compression/lzo-kmod/lzo1x_compress.c 2009-04-20 06:28:30.000000000 +0200
++++ compcache-0.5.3/sub-projects/compression/lzo-kmod/lzo1x_compress.c 2009-04-20 06:29:21.000000000 +0200
@@ -62,8 +62,12 @@
goto literal;
@@ -55,9 +55,9 @@ diff -uNr compcache-0.5/sub-projects/compression/lzo-kmod/lzo1x_compress.c compc
MODULE_LICENSE("GPL");
MODULE_DESCRIPTION("LZO1X-1 Compressor");
-
-diff -uNr compcache-0.5/sub-projects/compression/lzo-kmod/lzo1x_decompress.c compcache-0.5/sub-projects/compression/lzo-kmod/lzo1x_decompress.c
---- compcache-0.5/sub-projects/compression/lzo-kmod/lzo1x_decompress.c 2008-08-13 06:33:42.000000000 +0200
-+++ compcache-0.5/sub-projects/compression/lzo-kmod/lzo1x_decompress.c 2009-01-21 07:49:41.000000000 +0100
+diff -uNr compcache-0.5.3-org/sub-projects/compression/lzo-kmod/lzo1x_decompress.c compcache-0.5.3/sub-projects/compression/lzo-kmod/lzo1x_decompress.c
+--- compcache-0.5.3-org/sub-projects/compression/lzo-kmod/lzo1x_decompress.c 2009-04-20 06:28:30.000000000 +0200
++++ compcache-0.5.3/sub-projects/compression/lzo-kmod/lzo1x_decompress.c 2009-04-20 06:29:21.000000000 +0200
@@ -45,10 +45,7 @@
goto output_overrun;
if (HAVE_IP(t + 1, ip_end, ip))
@@ -70,7 +70,7 @@ diff -uNr compcache-0.5/sub-projects/compression/lzo-kmod/lzo1x_decompress.c com
}
while ((ip < ip_end)) {
-@@ -71,23 +68,20 @@
+@@ -71,30 +68,27 @@
if (HAVE_IP(t + 4, ip_end, ip))
goto input_overrun;
@@ -108,6 +108,14 @@ diff -uNr compcache-0.5/sub-projects/compression/lzo-kmod/lzo1x_decompress.c com
do {
*op++ = *ip++;
} while (--t > 0);
+ }
+ }
+
+-first_literal_run:
++//first_literal_run:
+ t = *ip++;
+ if (t >= 16)
+ goto match;
@@ -139,8 +133,7 @@
t += 31 + *ip++;
}
@@ -173,13 +181,3 @@ diff -uNr compcache-0.5/sub-projects/compression/lzo-kmod/lzo1x_decompress.c com
} else {
copy_match:
*op++ = *m_pos++;
-@@ -247,9 +251,7 @@
- *out_len = op - out;
- return LZO_E_LOOKBEHIND_OVERRUN;
- }
--
- EXPORT_SYMBOL_GPL(lzo1x_decompress_safe);
-
- MODULE_LICENSE("GPL");
- MODULE_DESCRIPTION("LZO1X Decompressor");
--
diff --git a/package/compcache/patches/002-compact_lzo-codec.patch b/package/compcache/patches/002-compact_lzo-codec.patch
deleted file mode 100644
index 4b560f317..000000000
--- a/package/compcache/patches/002-compact_lzo-codec.patch
+++ /dev/null
@@ -1,30 +0,0 @@
---- compcache-0.5/Makefile.bak 2008-12-10 07:25:44.000000000 +0100
-+++ compcache-0.5/Makefile 2009-01-21 08:25:38.000000000 +0100
-@@ -4,15 +4,13 @@
- -DCONFIG_XV_STATS \
- -g -Wall
-
--obj-m += sub-projects/compression/lzo-kmod/lzo1x_decompress.o \
-- sub-projects/compression/lzo-kmod/lzo1x_compress.o \
-+obj-m += sub-projects/compression/lzo-kmod/lzo1x.o \
- sub-projects/allocators/xvmalloc-kmod/xvmalloc.o \
- compcache.o
-
- all:
- make -C /lib/modules/$(shell uname -r)/build M=$(PWD) modules
-- @ln -sf sub-projects/compression/lzo-kmod/lzo1x_decompress.ko
-- @ln -sf sub-projects/compression/lzo-kmod/lzo1x_compress.ko
-+ @ln -sf sub-projects/compression/lzo-kmod/lzo1x.ko
- @ln -sf sub-projects/allocators/xvmalloc-kmod/xvmalloc.ko
-
- clean:
---- compcache-0.5/sub-projects/compression/lzo-kmod/lzo1x.c~ 1970-01-01 01:00:00.000000000 +0100
-+++ compcache-0.5/sub-projects/compression/lzo-kmod/lzo1x.c 2008-05-06 09:38:12.000000000 +0200
-@@ -0,0 +1,7 @@
-+#include <linux/module.h>
-+
-+#include "lzo1x_compress.c"
-+#include "lzo1x_decompress.c"
-+
-+MODULE_LICENSE("GPL");
-+MODULE_DESCRIPTION("LZO1X Lib");
diff --git a/package/compcache/patches/100-use_register_width.patch b/package/compcache/patches/100-use_register_width.patch
new file mode 100644
index 000000000..6200d56fd
--- /dev/null
+++ b/package/compcache/patches/100-use_register_width.patch
@@ -0,0 +1,24 @@
+diff -uNr compcache-0.5.2/compcache.c compcache/compcache.c
+--- compcache-0.5.2/compcache.c 2009-03-10 13:03:56.000000000 +0100
++++ compcache/ramzswap.c 2009-04-01 17:38:20.000000000 +0200
+@@ -68,15 +68,15 @@
+ static int page_zero_filled(void *ptr)
+ {
+ u32 pos;
+- u64 *page;
+-
+- page = (u64 *)ptr;
+-
++#if defined(CONFIG_64BIT)
++ u64 *page = (u64 *)ptr;
++#else
++ u32 *page = (u32 *)ptr;
++#endif
+ for (pos = 0; pos != PAGE_SIZE / sizeof(*page); pos++) {
+ if (page[pos])
+ return 0;
+ }
+-
+ return 1;
+ }
+
diff --git a/package/compcache/patches/200-av_compress_ratio.patch b/package/compcache/patches/200-av_compress_ratio.patch
new file mode 100644
index 000000000..82a1ecce8
--- /dev/null
+++ b/package/compcache/patches/200-av_compress_ratio.patch
@@ -0,0 +1,39 @@
+diff -uNr compcache-0.5.4-old/ramzswap.c compcache-0.5.4/ramzswap.c
+--- compcache-0.5.4-old/ramzswap.c 2009-10-18 09:14:53.000000000 +0200
++++ compcache-0.5.4/ramzswap.c 2009-10-18 09:12:08.000000000 +0200
+@@ -126,7 +126,9 @@
+ {
+ int len;
+ size_t succ_writes, mem_used;
+- unsigned int good_compress_perc = 0, no_compress_perc = 0;
++ unsigned int good_compress_perc = 0,
++ av_compression_perc = 0,
++ no_compress_perc = 0;
+
+ mem_used = xv_get_total_size_bytes(rzs.mem_pool)
+ + (stats.pages_expand << PAGE_SHIFT);
+@@ -154,6 +156,8 @@
+ if (succ_writes && stats.pages_stored) {
+ good_compress_perc = stats.good_compress * 100
+ / stats.pages_stored;
++ av_compression_perc = stats.compr_size * 100
++ / (stats.good_compress << PAGE_SHIFT);
+ no_compress_perc = stats.pages_expand * 100
+ / stats.pages_stored;
+ }
+@@ -168,6 +172,7 @@
+ "NotifyFree: %8llu\n"
+ "ZeroPages: %8u\n"
+ "GoodCompress: %8u %%\n"
++ "AvCompression: %8u %%\n"
+ "NoCompress: %8u %%\n"
+ "PagesStored: %8u\n"
+ "PagesUsed: %8zu\n"
+@@ -182,6 +187,7 @@
+ stats.notify_free,
+ stats.pages_zero,
+ good_compress_perc,
++ av_compression_perc,
+ no_compress_perc,
+ stats.pages_stored,
+ mem_used >> PAGE_SHIFT,
generated by cgit v1.2.3 (git 2.25.1) at 2025-10-31 01:34:03 +0000