|
|
@@ -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 <[email protected]>
|
|
|
++ *
|
|
|
++ * The full LZO package can be found at:
|
|
|
++ * http://www.oberhumer.com/opensource/lzo/
|
|
|
++ *
|
|
|
++ * Changed for kernel use by:
|
|
|
++ * Nitin Gupta <[email protected]>
|
|
|
++ * Richard Purdie <[email protected]>
|
|
|
++ */
|
|
|
++
|
|
|
++#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 <[email protected]>
|
|
|
++ *
|
|
|
++ * The full LZO package can be found at:
|
|
|
++ * http://www.oberhumer.com/opensource/lzo/
|
|
|
++ *
|
|
|
++ * Changed for kernel use by:
|
|
|
++ * Nitin Gupta <[email protected]>
|
|
|
++ * Richard Purdie <[email protected]>
|
|
|
++ */
|
|
|
++
|
|
|
++#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 <[email protected]>
|
|
|
++ *
|
|
|
++ * The full LZO package can be found at:
|
|
|
++ * http://www.oberhumer.com/opensource/lzo/
|
|
|
++ *
|
|
|
++ * Changed for kernel use by:
|
|
|
++ * Nitin Gupta <[email protected]>
|
|
|
++ * Richard Purdie <[email protected]>
|
|
|
++ */
|
|
|
++
|
|
|
++#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 <[email protected]>
|
|
|
++ *
|
|
|
++ * The full LZO package can be found at:
|
|
|
++ * http://www.oberhumer.com/opensource/lzo/
|
|
|
++ *
|
|
|
++ * Changed for kernel use by:
|
|
|
++ * Nitin Gupta <[email protected]>
|
|
|
++ * Richard Purdie <[email protected]>
|
|
|
++ */
|
|
|
++
|
|
|
++#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
|
|
|
++
|
Florian Fainelli