KumiSystems/openwrtv4
1
0
Fork 0
Code Issues Pull requests Projects Releases Packages Wiki Activity

update compcache to 0.5.4 (#6018)

Browse source 
SVN-Revision: 18512
This commit is contained in:
Florian Fainelli 2009-11-23 22:30:42 +00:00
parent 9fce92753f
commit 1f24cd1700
9 changed files with 813 additions and 73 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

30
package/compcache/Config.in Normal file
View file

@ -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

32
package/compcache/Makefile
View file

@ -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) \
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)
# AUTOLOAD:=$(call AutoLoad,10,xvmalloc lzo1x compcache+compcache_size_kbytes=2048)
endef
BUILDFLAGS:=-DCONFIG_BLK_DEV_COMPCACHE_DEBUG=0 \
-DCONFIG_BLK_DEV_COMPCACHE_STATS=1 \
-DCONFIG_XV_DEBUG=0 \
-DCONFIG_XV_STATS=1 \
-g -Wall
XVM = sub-projects/allocators/xvmalloc-kmod
LZO = sub-projects/compression/lzo-kmod
BUILDFLAGS:=-DCONFIG_BLK_DEV_RAMZSWAP_STATS \
-I$(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))

5
package/compcache/files/compcache.config
View file

@ -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%'

24
package/compcache/files/compcache.init
View file

@ -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
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 compcache compcache_size_kbytes=$size_kbytes
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
}

662
package/compcache/patches/000-provide_lzo_kmod.patch Normal file
View file

@ -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
+

32
package/compcache/patches/001-lzo-speed.patch
View file

@ -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");
-

30
package/compcache/patches/002-compact_lzo-codec.patch
View file

@ -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");

24
package/compcache/patches/100-use_register_width.patch Normal file
View file

@ -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;
}

39
package/compcache/patches/200-av_compress_ratio.patch Normal file
View file

@ -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,