linux-openmoko_2.6.24+git.bb : add squashfs to the build #4437

5 files changed, 5487 insertions, 0 deletions

diff --git a/packages/linux/linux-openmoko/0001-squashfs-with-lzma.patch b/packages/linux/linux-openmoko/0001-squashfs-with-lzma.patch
new file mode 100644
index 0000000000..04d47fe16f
--- /dev/null
+++ b/packages/linux/linux-openmoko/0001-squashfs-with-lzma.patch
@@ -0,0 +1,5342 @@
+
+diff -urN linux-2.6.23/fs/squashfs/LzmaDecode.c linux-2.6.23.sqlzma-ng/fs/squashfs/LzmaDecode.c
+--- linux-2.6.23/fs/squashfs/LzmaDecode.c	1969-12-31 19:00:00.000000000 -0500
++++ linux-2.6.23.sqlzma-ng/fs/squashfs/LzmaDecode.c	2007-11-13 19:45:12.000000000 -0500
+@@ -0,0 +1,584 @@
++/*

++  LzmaDecode.c

++  LZMA Decoder (optimized for Speed version)

++  

++  LZMA SDK 4.40 Copyright (c) 1999-2006 Igor Pavlov (2006-05-01)

++  http://www.7-zip.org/

++

++  LZMA SDK is licensed under two licenses:

++  1) GNU Lesser General Public License (GNU LGPL)

++  2) Common Public License (CPL)

++  It means that you can select one of these two licenses and 

++  follow rules of that license.

++

++  SPECIAL EXCEPTION:

++  Igor Pavlov, as the author of this Code, expressly permits you to 

++  statically or dynamically link your Code (or bind by name) to the 

++  interfaces of this file without subjecting your linked Code to the 

++  terms of the CPL or GNU LGPL. Any modifications or additions 

++  to this file, however, are subject to the LGPL or CPL terms.

++*/

++

++#include "LzmaDecode.h"

++

++#define kNumTopBits 24

++#define kTopValue ((UInt32)1 << kNumTopBits)

++

++#define kNumBitModelTotalBits 11

++#define kBitModelTotal (1 << kNumBitModelTotalBits)

++#define kNumMoveBits 5

++

++#define RC_READ_BYTE (*Buffer++)

++

++#define RC_INIT2 Code = 0; Range = 0xFFFFFFFF; \

++  { int i; for(i = 0; i < 5; i++) { RC_TEST; Code = (Code << 8) | RC_READ_BYTE; }}

++

++#ifdef _LZMA_IN_CB

++

++#define RC_TEST { if (Buffer == BufferLim) \

++  { SizeT size; int result = InCallback->Read(InCallback, &Buffer, &size); if (result != LZMA_RESULT_OK) return result; \

++  BufferLim = Buffer + size; if (size == 0) return LZMA_RESULT_DATA_ERROR; }}

++

++#define RC_INIT Buffer = BufferLim = 0; RC_INIT2

++

++#else

++

++#define RC_TEST { if (Buffer == BufferLim) return LZMA_RESULT_DATA_ERROR; }

++

++#define RC_INIT(buffer, bufferSize) Buffer = buffer; BufferLim = buffer + bufferSize; RC_INIT2

++ 

++#endif

++

++#define RC_NORMALIZE if (Range < kTopValue) { RC_TEST; Range <<= 8; Code = (Code << 8) | RC_READ_BYTE; }

++

++#define IfBit0(p) RC_NORMALIZE; bound = (Range >> kNumBitModelTotalBits) * *(p); if (Code < bound)

++#define UpdateBit0(p) Range = bound; *(p) += (kBitModelTotal - *(p)) >> kNumMoveBits;

++#define UpdateBit1(p) Range -= bound; Code -= bound; *(p) -= (*(p)) >> kNumMoveBits;

++

++#define RC_GET_BIT2(p, mi, A0, A1) IfBit0(p) \

++  { UpdateBit0(p); mi <<= 1; A0; } else \

++  { UpdateBit1(p); mi = (mi + mi) + 1; A1; } 

++  

++#define RC_GET_BIT(p, mi) RC_GET_BIT2(p, mi, ; , ;)               

++

++#define RangeDecoderBitTreeDecode(probs, numLevels, res) \

++  { int i = numLevels; res = 1; \

++  do { CProb *p = probs + res; RC_GET_BIT(p, res) } while(--i != 0); \

++  res -= (1 << numLevels); }

++

++

++#define kNumPosBitsMax 4

++#define kNumPosStatesMax (1 << kNumPosBitsMax)

++

++#define kLenNumLowBits 3

++#define kLenNumLowSymbols (1 << kLenNumLowBits)

++#define kLenNumMidBits 3

++#define kLenNumMidSymbols (1 << kLenNumMidBits)

++#define kLenNumHighBits 8

++#define kLenNumHighSymbols (1 << kLenNumHighBits)

++

++#define LenChoice 0

++#define LenChoice2 (LenChoice + 1)

++#define LenLow (LenChoice2 + 1)

++#define LenMid (LenLow + (kNumPosStatesMax << kLenNumLowBits))

++#define LenHigh (LenMid + (kNumPosStatesMax << kLenNumMidBits))

++#define kNumLenProbs (LenHigh + kLenNumHighSymbols) 

++

++

++#define kNumStates 12

++#define kNumLitStates 7

++

++#define kStartPosModelIndex 4

++#define kEndPosModelIndex 14

++#define kNumFullDistances (1 << (kEndPosModelIndex >> 1))

++

++#define kNumPosSlotBits 6

++#define kNumLenToPosStates 4

++

++#define kNumAlignBits 4

++#define kAlignTableSize (1 << kNumAlignBits)

++

++#define kMatchMinLen 2

++

++#define IsMatch 0

++#define IsRep (IsMatch + (kNumStates << kNumPosBitsMax))

++#define IsRepG0 (IsRep + kNumStates)

++#define IsRepG1 (IsRepG0 + kNumStates)

++#define IsRepG2 (IsRepG1 + kNumStates)

++#define IsRep0Long (IsRepG2 + kNumStates)

++#define PosSlot (IsRep0Long + (kNumStates << kNumPosBitsMax))

++#define SpecPos (PosSlot + (kNumLenToPosStates << kNumPosSlotBits))

++#define Align (SpecPos + kNumFullDistances - kEndPosModelIndex)

++#define LenCoder (Align + kAlignTableSize)

++#define RepLenCoder (LenCoder + kNumLenProbs)

++#define Literal (RepLenCoder + kNumLenProbs)

++

++#if Literal != LZMA_BASE_SIZE

++StopCompilingDueBUG

++#endif

++

++int LzmaDecodeProperties(CLzmaProperties *propsRes, const unsigned char *propsData, int size)

++{

++  unsigned char prop0;

++  if (size < LZMA_PROPERTIES_SIZE)

++    return LZMA_RESULT_DATA_ERROR;

++  prop0 = propsData[0];

++  if (prop0 >= (9 * 5 * 5))

++    return LZMA_RESULT_DATA_ERROR;

++  {

++    for (propsRes->pb = 0; prop0 >= (9 * 5); propsRes->pb++, prop0 -= (9 * 5));

++    for (propsRes->lp = 0; prop0 >= 9; propsRes->lp++, prop0 -= 9);

++    propsRes->lc = prop0;

++    /*

++    unsigned char remainder = (unsigned char)(prop0 / 9);

++    propsRes->lc = prop0 % 9;

++    propsRes->pb = remainder / 5;

++    propsRes->lp = remainder % 5;

++    */

++  }

++

++  #ifdef _LZMA_OUT_READ

++  {

++    int i;

++    propsRes->DictionarySize = 0;

++    for (i = 0; i < 4; i++)

++      propsRes->DictionarySize += (UInt32)(propsData[1 + i]) << (i * 8);

++    if (propsRes->DictionarySize == 0)

++      propsRes->DictionarySize = 1;

++  }

++  #endif

++  return LZMA_RESULT_OK;

++}

++

++#define kLzmaStreamWasFinishedId (-1)

++

++int LzmaDecode(CLzmaDecoderState *vs,

++    #ifdef _LZMA_IN_CB

++    ILzmaInCallback *InCallback,

++    #else

++    const unsigned char *inStream, SizeT inSize, SizeT *inSizeProcessed,

++    #endif

++    unsigned char *outStream, SizeT outSize, SizeT *outSizeProcessed)

++{

++  CProb *p = vs->Probs;

++  SizeT nowPos = 0;

++  Byte previousByte = 0;

++  UInt32 posStateMask = (1 << (vs->Properties.pb)) - 1;

++  UInt32 literalPosMask = (1 << (vs->Properties.lp)) - 1;

++  int lc = vs->Properties.lc;

++

++  #ifdef _LZMA_OUT_READ

++  

++  UInt32 Range = vs->Range;

++  UInt32 Code = vs->Code;

++  #ifdef _LZMA_IN_CB

++  const Byte *Buffer = vs->Buffer;

++  const Byte *BufferLim = vs->BufferLim;

++  #else

++  const Byte *Buffer = inStream;

++  const Byte *BufferLim = inStream + inSize;

++  #endif

++  int state = vs->State;

++  UInt32 rep0 = vs->Reps[0], rep1 = vs->Reps[1], rep2 = vs->Reps[2], rep3 = vs->Reps[3];

++  int len = vs->RemainLen;

++  UInt32 globalPos = vs->GlobalPos;

++  UInt32 distanceLimit = vs->DistanceLimit;

++

++  Byte *dictionary = vs->Dictionary;

++  UInt32 dictionarySize = vs->Properties.DictionarySize;

++  UInt32 dictionaryPos = vs->DictionaryPos;

++

++  Byte tempDictionary[4];

++

++  #ifndef _LZMA_IN_CB

++  *inSizeProcessed = 0;

++  #endif

++  *outSizeProcessed = 0;

++  if (len == kLzmaStreamWasFinishedId)

++    return LZMA_RESULT_OK;

++

++  if (dictionarySize == 0)

++  {

++    dictionary = tempDictionary;

++    dictionarySize = 1;

++    tempDictionary[0] = vs->TempDictionary[0];

++  }

++

++  if (len == kLzmaNeedInitId)

++  {

++    {

++      UInt32 numProbs = Literal + ((UInt32)LZMA_LIT_SIZE << (lc + vs->Properties.lp));

++      UInt32 i;

++      for (i = 0; i < numProbs; i++)

++        p[i] = kBitModelTotal >> 1; 

++      rep0 = rep1 = rep2 = rep3 = 1;

++      state = 0;

++      globalPos = 0;

++      distanceLimit = 0;

++      dictionaryPos = 0;

++      dictionary[dictionarySize - 1] = 0;

++      #ifdef _LZMA_IN_CB

++      RC_INIT;

++      #else

++      RC_INIT(inStream, inSize);

++      #endif

++    }

++    len = 0;

++  }

++  while(len != 0 && nowPos < outSize)

++  {

++    UInt32 pos = dictionaryPos - rep0;

++    if (pos >= dictionarySize)

++      pos += dictionarySize;

++    outStream[nowPos++] = dictionary[dictionaryPos] = dictionary[pos];

++    if (++dictionaryPos == dictionarySize)

++      dictionaryPos = 0;

++    len--;

++  }

++  if (dictionaryPos == 0)

++    previousByte = dictionary[dictionarySize - 1];

++  else

++    previousByte = dictionary[dictionaryPos - 1];

++

++  #else /* if !_LZMA_OUT_READ */

++

++  int state = 0;

++  UInt32 rep0 = 1, rep1 = 1, rep2 = 1, rep3 = 1;

++  int len = 0;

++  const Byte *Buffer;

++  const Byte *BufferLim;

++  UInt32 Range;

++  UInt32 Code;

++

++  #ifndef _LZMA_IN_CB

++  *inSizeProcessed = 0;

++  #endif

++  *outSizeProcessed = 0;

++

++  {

++    UInt32 i;

++    UInt32 numProbs = Literal + ((UInt32)LZMA_LIT_SIZE << (lc + vs->Properties.lp));

++    for (i = 0; i < numProbs; i++)

++      p[i] = kBitModelTotal >> 1;

++  }

++  

++  #ifdef _LZMA_IN_CB

++  RC_INIT;

++  #else

++  RC_INIT(inStream, inSize);

++  #endif

++

++  #endif /* _LZMA_OUT_READ */

++

++  while(nowPos < outSize)

++  {

++    CProb *prob;

++    UInt32 bound;

++    int posState = (int)(

++        (nowPos 

++        #ifdef _LZMA_OUT_READ

++        + globalPos

++        #endif

++        )

++        & posStateMask);

++

++    prob = p + IsMatch + (state << kNumPosBitsMax) + posState;

++    IfBit0(prob)

++    {

++      int symbol = 1;

++      UpdateBit0(prob)

++      prob = p + Literal + (LZMA_LIT_SIZE * 

++        (((

++        (nowPos 

++        #ifdef _LZMA_OUT_READ

++        + globalPos

++        #endif

++        )

++        & literalPosMask) << lc) + (previousByte >> (8 - lc))));

++

++      if (state >= kNumLitStates)

++      {

++        int matchByte;

++        #ifdef _LZMA_OUT_READ

++        UInt32 pos = dictionaryPos - rep0;

++        if (pos >= dictionarySize)

++          pos += dictionarySize;

++        matchByte = dictionary[pos];

++        #else

++        matchByte = outStream[nowPos - rep0];

++        #endif

++        do

++        {

++          int bit;

++          CProb *probLit;

++          matchByte <<= 1;

++          bit = (matchByte & 0x100);

++          probLit = prob + 0x100 + bit + symbol;

++          RC_GET_BIT2(probLit, symbol, if (bit != 0) break, if (bit == 0) break)

++        }

++        while (symbol < 0x100);

++      }

++      while (symbol < 0x100)

++      {

++        CProb *probLit = prob + symbol;

++        RC_GET_BIT(probLit, symbol)

++      }

++      previousByte = (Byte)symbol;

++

++      outStream[nowPos++] = previousByte;

++      #ifdef _LZMA_OUT_READ

++      if (distanceLimit < dictionarySize)

++        distanceLimit++;

++

++      dictionary[dictionaryPos] = previousByte;

++      if (++dictionaryPos == dictionarySize)

++        dictionaryPos = 0;

++      #endif

++      if (state < 4) state = 0;

++      else if (state < 10) state -= 3;

++      else state -= 6;

++    }

++    else             

++    {

++      UpdateBit1(prob);

++      prob = p + IsRep + state;

++      IfBit0(prob)

++      {

++        UpdateBit0(prob);

++        rep3 = rep2;

++        rep2 = rep1;

++        rep1 = rep0;

++        state = state < kNumLitStates ? 0 : 3;

++        prob = p + LenCoder;

++      }

++      else

++      {

++        UpdateBit1(prob);

++        prob = p + IsRepG0 + state;

++        IfBit0(prob)

++        {

++          UpdateBit0(prob);

++          prob = p + IsRep0Long + (state << kNumPosBitsMax) + posState;

++          IfBit0(prob)

++          {

++            #ifdef _LZMA_OUT_READ

++            UInt32 pos;

++            #endif

++            UpdateBit0(prob);

++            

++            #ifdef _LZMA_OUT_READ

++            if (distanceLimit == 0)

++            #else

++            if (nowPos == 0)

++            #endif

++              return LZMA_RESULT_DATA_ERROR;

++            

++            state = state < kNumLitStates ? 9 : 11;

++            #ifdef _LZMA_OUT_READ

++            pos = dictionaryPos - rep0;

++            if (pos >= dictionarySize)

++              pos += dictionarySize;

++            previousByte = dictionary[pos];

++            dictionary[dictionaryPos] = previousByte;

++            if (++dictionaryPos == dictionarySize)

++              dictionaryPos = 0;

++            #else

++            previousByte = outStream[nowPos - rep0];

++            #endif

++            outStream[nowPos++] = previousByte;

++            #ifdef _LZMA_OUT_READ

++            if (distanceLimit < dictionarySize)

++              distanceLimit++;

++            #endif

++

++            continue;

++          }

++          else

++          {

++            UpdateBit1(prob);

++          }

++        }

++        else

++        {

++          UInt32 distance;

++          UpdateBit1(prob);

++          prob = p + IsRepG1 + state;

++          IfBit0(prob)

++          {

++            UpdateBit0(prob);

++            distance = rep1;

++          }

++          else 

++          {

++            UpdateBit1(prob);

++            prob = p + IsRepG2 + state;

++            IfBit0(prob)

++            {

++              UpdateBit0(prob);

++              distance = rep2;

++            }

++            else

++            {

++              UpdateBit1(prob);

++              distance = rep3;

++              rep3 = rep2;

++            }

++            rep2 = rep1;

++          }

++          rep1 = rep0;

++          rep0 = distance;

++        }

++        state = state < kNumLitStates ? 8 : 11;

++        prob = p + RepLenCoder;

++      }

++      {

++        int numBits, offset;

++        CProb *probLen = prob + LenChoice;

++        IfBit0(probLen)

++        {

++          UpdateBit0(probLen);

++          probLen = prob + LenLow + (posState << kLenNumLowBits);

++          offset = 0;

++          numBits = kLenNumLowBits;

++        }

++        else

++        {

++          UpdateBit1(probLen);

++          probLen = prob + LenChoice2;

++          IfBit0(probLen)

++          {

++            UpdateBit0(probLen);

++            probLen = prob + LenMid + (posState << kLenNumMidBits);

++            offset = kLenNumLowSymbols;

++            numBits = kLenNumMidBits;

++          }

++          else

++          {

++            UpdateBit1(probLen);

++            probLen = prob + LenHigh;

++            offset = kLenNumLowSymbols + kLenNumMidSymbols;

++            numBits = kLenNumHighBits;

++          }

++        }

++        RangeDecoderBitTreeDecode(probLen, numBits, len);

++        len += offset;

++      }

++

++      if (state < 4)

++      {

++        int posSlot;

++        state += kNumLitStates;

++        prob = p + PosSlot +

++            ((len < kNumLenToPosStates ? len : kNumLenToPosStates - 1) << 

++            kNumPosSlotBits);

++        RangeDecoderBitTreeDecode(prob, kNumPosSlotBits, posSlot);

++        if (posSlot >= kStartPosModelIndex)

++        {

++          int numDirectBits = ((posSlot >> 1) - 1);

++          rep0 = (2 | ((UInt32)posSlot & 1));

++          if (posSlot < kEndPosModelIndex)

++          {

++            rep0 <<= numDirectBits;

++            prob = p + SpecPos + rep0 - posSlot - 1;

++          }

++          else

++          {

++            numDirectBits -= kNumAlignBits;

++            do

++            {

++              RC_NORMALIZE

++              Range >>= 1;

++              rep0 <<= 1;

++              if (Code >= Range)

++              {

++                Code -= Range;

++                rep0 |= 1;

++              }

++            }

++            while (--numDirectBits != 0);

++            prob = p + Align;

++            rep0 <<= kNumAlignBits;

++            numDirectBits = kNumAlignBits;

++          }

++          {

++            int i = 1;

++            int mi = 1;

++            do

++            {

++              CProb *prob3 = prob + mi;

++              RC_GET_BIT2(prob3, mi, ; , rep0 |= i);

++              i <<= 1;

++            }

++            while(--numDirectBits != 0);

++          }

++        }

++        else

++          rep0 = posSlot;

++        if (++rep0 == (UInt32)(0))

++        {

++          /* it's for stream version */

++          len = kLzmaStreamWasFinishedId;

++          break;

++        }

++      }

++

++      len += kMatchMinLen;

++      #ifdef _LZMA_OUT_READ

++      if (rep0 > distanceLimit) 

++      #else

++      if (rep0 > nowPos)

++      #endif

++        return LZMA_RESULT_DATA_ERROR;

++

++      #ifdef _LZMA_OUT_READ

++      if (dictionarySize - distanceLimit > (UInt32)len)

++        distanceLimit += len;

++      else

++        distanceLimit = dictionarySize;

++      #endif

++

++      do

++      {

++        #ifdef _LZMA_OUT_READ

++        UInt32 pos = dictionaryPos - rep0;

++        if (pos >= dictionarySize)

++          pos += dictionarySize;

++        previousByte = dictionary[pos];

++        dictionary[dictionaryPos] = previousByte;

++        if (++dictionaryPos == dictionarySize)

++          dictionaryPos = 0;

++        #else

++        previousByte = outStream[nowPos - rep0];

++        #endif

++        len--;

++        outStream[nowPos++] = previousByte;

++      }

++      while(len != 0 && nowPos < outSize);

++    }

++  }

++  RC_NORMALIZE;

++

++  #ifdef _LZMA_OUT_READ

++  vs->Range = Range;

++  vs->Code = Code;

++  vs->DictionaryPos = dictionaryPos;

++  vs->GlobalPos = globalPos + (UInt32)nowPos;

++  vs->DistanceLimit = distanceLimit;

++  vs->Reps[0] = rep0;

++  vs->Reps[1] = rep1;

++  vs->Reps[2] = rep2;

++  vs->Reps[3] = rep3;

++  vs->State = state;

++  vs->RemainLen = len;

++  vs->TempDictionary[0] = tempDictionary[0];

++  #endif

++

++  #ifdef _LZMA_IN_CB

++  vs->Buffer = Buffer;

++  vs->BufferLim = BufferLim;

++  #else

++  *inSizeProcessed = (SizeT)(Buffer - inStream);

++  #endif

++  *outSizeProcessed = nowPos;

++  return LZMA_RESULT_OK;

++}

+diff -urN linux-2.6.23/fs/squashfs/LzmaDecode.h linux-2.6.23.sqlzma-ng/fs/squashfs/LzmaDecode.h
+--- linux-2.6.23/fs/squashfs/LzmaDecode.h	1969-12-31 19:00:00.000000000 -0500
++++ linux-2.6.23.sqlzma-ng/fs/squashfs/LzmaDecode.h	2007-11-13 19:45:12.000000000 -0500
+@@ -0,0 +1,113 @@
++/* 

++  LzmaDecode.h

++  LZMA Decoder interface

++

++  LZMA SDK 4.40 Copyright (c) 1999-2006 Igor Pavlov (2006-05-01)

++  http://www.7-zip.org/

++

++  LZMA SDK is licensed under two licenses:

++  1) GNU Lesser General Public License (GNU LGPL)

++  2) Common Public License (CPL)

++  It means that you can select one of these two licenses and 

++  follow rules of that license.

++

++  SPECIAL EXCEPTION:

++  Igor Pavlov, as the author of this code, expressly permits you to 

++  statically or dynamically link your code (or bind by name) to the 

++  interfaces of this file without subjecting your linked code to the 

++  terms of the CPL or GNU LGPL. Any modifications or additions 

++  to this file, however, are subject to the LGPL or CPL terms.

++*/

++

++#ifndef __LZMADECODE_H

++#define __LZMADECODE_H

++

++#include "LzmaTypes.h"

++

++/* #define _LZMA_IN_CB */

++/* Use callback for input data */

++

++/* #define _LZMA_OUT_READ */

++/* Use read function for output data */

++

++/* #define _LZMA_PROB32 */

++/* It can increase speed on some 32-bit CPUs, 

++   but memory usage will be doubled in that case */

++

++/* #define _LZMA_LOC_OPT */

++/* Enable local speed optimizations inside code */

++

++#ifdef _LZMA_PROB32

++#define CProb UInt32

++#else

++#define CProb UInt16

++#endif

++

++#define LZMA_RESULT_OK 0

++#define LZMA_RESULT_DATA_ERROR 1

++

++#ifdef _LZMA_IN_CB

++typedef struct _ILzmaInCallback

++{

++  int (*Read)(void *object, const unsigned char **buffer, SizeT *bufferSize);

++} ILzmaInCallback;

++#endif

++

++#define LZMA_BASE_SIZE 1846

++#define LZMA_LIT_SIZE 768

++

++#define LZMA_PROPERTIES_SIZE 5

++

++typedef struct _CLzmaProperties

++{

++  int lc;

++  int lp;

++  int pb;

++  #ifdef _LZMA_OUT_READ

++  UInt32 DictionarySize;

++  #endif

++}CLzmaProperties;

++

++int LzmaDecodeProperties(CLzmaProperties *propsRes, const unsigned char *propsData, int size);

++

++#define LzmaGetNumProbs(Properties) (LZMA_BASE_SIZE + (LZMA_LIT_SIZE << ((Properties)->lc + (Properties)->lp)))

++

++#define kLzmaNeedInitId (-2)

++

++typedef struct _CLzmaDecoderState

++{

++  CLzmaProperties Properties;

++  CProb *Probs;

++

++  #ifdef _LZMA_IN_CB

++  const unsigned char *Buffer;

++  const unsigned char *BufferLim;

++  #endif

++

++  #ifdef _LZMA_OUT_READ

++  unsigned char *Dictionary;

++  UInt32 Range;

++  UInt32 Code;

++  UInt32 DictionaryPos;

++  UInt32 GlobalPos;

++  UInt32 DistanceLimit;

++  UInt32 Reps[4];

++  int State;

++  int RemainLen;

++  unsigned char TempDictionary[4];

++  #endif

++} CLzmaDecoderState;

++

++#ifdef _LZMA_OUT_READ

++#define LzmaDecoderInit(vs) { (vs)->RemainLen = kLzmaNeedInitId; }

++#endif

++

++int LzmaDecode(CLzmaDecoderState *vs,

++    #ifdef _LZMA_IN_CB

++    ILzmaInCallback *inCallback,

++    #else

++    const unsigned char *inStream, SizeT inSize, SizeT *inSizeProcessed,

++    #endif

++    unsigned char *outStream, SizeT outSize, SizeT *outSizeProcessed);

++

++#endif

+diff -urN linux-2.6.23/fs/squashfs/LzmaTypes.h linux-2.6.23.sqlzma-ng/fs/squashfs/LzmaTypes.h
+--- linux-2.6.23/fs/squashfs/LzmaTypes.h	1969-12-31 19:00:00.000000000 -0500
++++ linux-2.6.23.sqlzma-ng/fs/squashfs/LzmaTypes.h	2007-11-13 19:47:32.000000000 -0500
+@@ -0,0 +1,45 @@
++/* 

++LzmaTypes.h 

++

++Types for LZMA Decoder

++

++This file written and distributed to public domain by Igor Pavlov.

++This file is part of LZMA SDK 4.40 (2006-05-01)

++*/

++

++#ifndef __LZMATYPES_H

++#define __LZMATYPES_H

++

++#ifndef _7ZIP_BYTE_DEFINED

++#define _7ZIP_BYTE_DEFINED

++typedef unsigned char Byte;

++#endif 

++

++#ifndef _7ZIP_UINT16_DEFINED

++#define _7ZIP_UINT16_DEFINED

++typedef unsigned short UInt16;

++#endif 

++

++#ifndef _7ZIP_UINT32_DEFINED

++#define _7ZIP_UINT32_DEFINED

++#ifdef _LZMA_UINT32_IS_ULONG

++typedef unsigned long UInt32;

++#else

++typedef unsigned int UInt32;

++#endif

++#endif 

++

++/* #define _LZMA_NO_SYSTEM_SIZE_T */

++/* You can use it, if you don't want <stddef.h> */

++

++#ifndef _7ZIP_SIZET_DEFINED

++#define _7ZIP_SIZET_DEFINED

++#ifdef _LZMA_NO_SYSTEM_SIZE_T

++typedef UInt32 SizeT;

++#else

++#include <stddef.h>

++typedef size_t SizeT;

++#endif

++#endif

++

++#endif

+diff -urN linux-2.6.23/fs/squashfs/Makefile linux-2.6.23.sqlzma-ng/fs/squashfs/Makefile
+--- linux-2.6.23/fs/squashfs/Makefile	1969-12-31 19:00:00.000000000 -0500
++++ linux-2.6.23.sqlzma-ng/fs/squashfs/Makefile	2007-11-13 19:52:56.000000000 -0500
+@@ -0,0 +1,10 @@
++#
++# Makefile for the linux squashfs routines.
++#
++
++
++obj-$(CONFIG_SQUASHFS) += unlzma.o sqlzma.o squashfs.o
++unlzma-y += module.o
++sqlzma-y += uncomp.o
++squashfs-y += inode.o
++squashfs-y += squashfs2_0.o
+diff -urN linux-2.6.23/fs/squashfs/inode.c linux-2.6.23.sqlzma-ng/fs/squashfs/inode.c
+--- linux-2.6.23/fs/squashfs/inode.c	1969-12-31 19:00:00.000000000 -0500
++++ linux-2.6.23.sqlzma-ng/fs/squashfs/inode.c	2007-11-13 19:14:24.000000000 -0500
+@@ -0,0 +1,2312 @@
++/*
++ * Squashfs - a compressed read only filesystem for Linux
++ *
++ * Copyright (c) 2002, 2003, 2004, 2005, 2006, 2007
++ * Phillip Lougher <phillip@lougher.demon.co.uk>
++ *
++ * This program is free software; you can redistribute it and/or
++ * modify it under the terms of the GNU General Public License
++ * as published by the Free Software Foundation; either version 2,
++ * or (at your option) any later version.
++ *
++ * This program is distributed in the hope that it will be useful,
++ * but WITHOUT ANY WARRANTY; without even the implied warranty of
++ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
++ * GNU General Public License for more details.
++ *
++ * You should have received a copy of the GNU General Public License
++ * along with this program; if not, write to the Free Software
++ * Foundation, 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
++ *
++ * inode.c
++ */
++
++#include <linux/squashfs_fs.h>
++#include <linux/module.h>
++#include <linux/zlib.h>
++#include <linux/fs.h>
++#include <linux/squashfs_fs_sb.h>
++#include <linux/squashfs_fs_i.h>
++#include <linux/buffer_head.h>
++#include <linux/vfs.h>
++#include <linux/vmalloc.h>
++#include <linux/smp_lock.h>
++#include <linux/sched.h>
++#include <linux/exportfs.h>
++
++#include "squashfs.h"
++#include "sqlzma.h"
++
++#undef KeepPreemptive
++#if defined(CONFIG_PREEMPT) && !defined(UnsquashNoPreempt)
++#define KeepPreemptive
++#endif
++
++struct sqlzma {
++#ifdef KeepPreemptive
++	struct mutex mtx;
++#endif
++	unsigned char read_data[SQUASHFS_FILE_MAX_SIZE];
++	struct sqlzma_un un;
++};
++static DEFINE_PER_CPU(struct sqlzma *, sqlzma);
++
++#define dpri(fmt, args...) /* printk("%s:%d: " fmt, __func__, __LINE__, ##args) */
++#define dpri_un(un)	dpri("un{%d, {%d %p}, {%d %p}, {%d %p}}\n", \
++			     (un)->un_lzma, (un)->un_a[0].sz, (un)->un_a[0].buf, \
++			     (un)->un_a[1].sz, (un)->un_a[1].buf, \
++			     (un)->un_a[2].sz, (un)->un_a[2].buf)
++
++static int squashfs_cached_blks;
++
++static void vfs_read_inode(struct inode *i);
++static struct dentry *squashfs_get_parent(struct dentry *child);
++static int squashfs_read_inode(struct inode *i, squashfs_inode_t inode);
++static int squashfs_statfs(struct dentry *, struct kstatfs *);
++static int squashfs_symlink_readpage(struct file *file, struct page *page);
++static long long read_blocklist(struct inode *inode, int index,
++				int readahead_blks, char *block_list,
++				unsigned short **block_p, unsigned int *bsize);
++static int squashfs_readpage(struct file *file, struct page *page);
++static int squashfs_readdir(struct file *, void *, filldir_t);
++static struct dentry *squashfs_lookup(struct inode *, struct dentry *,
++				struct nameidata *);
++static int squashfs_remount(struct super_block *s, int *flags, char *data);
++static void squashfs_put_super(struct super_block *);
++static int squashfs_get_sb(struct file_system_type *,int, const char *, void *,
++				struct vfsmount *);
++static struct inode *squashfs_alloc_inode(struct super_block *sb);
++static void squashfs_destroy_inode(struct inode *inode);
++static int init_inodecache(void);
++static void destroy_inodecache(void);
++
++static struct file_system_type squashfs_fs_type = {
++	.owner = THIS_MODULE,
++	.name = "squashfs",
++	.get_sb = squashfs_get_sb,
++	.kill_sb = kill_block_super,
++	.fs_flags = FS_REQUIRES_DEV
++};
++
++static const unsigned char squashfs_filetype_table[] = {
++	DT_UNKNOWN, DT_DIR, DT_REG, DT_LNK, DT_BLK, DT_CHR, DT_FIFO, DT_SOCK
++};
++
++static struct super_operations squashfs_super_ops = {
++	.alloc_inode = squashfs_alloc_inode,
++	.destroy_inode = squashfs_destroy_inode,
++	.statfs = squashfs_statfs,
++	.put_super = squashfs_put_super,
++	.remount_fs = squashfs_remount
++};
++
++static struct super_operations squashfs_export_super_ops = {
++	.alloc_inode = squashfs_alloc_inode,
++	.destroy_inode = squashfs_destroy_inode,
++	.statfs = squashfs_statfs,
++	.put_super = squashfs_put_super,
++	.read_inode = vfs_read_inode
++};
++
++static struct export_operations squashfs_export_ops = {
++	.get_parent = squashfs_get_parent
++};
++
++SQSH_EXTERN const struct address_space_operations squashfs_symlink_aops = {
++	.readpage = squashfs_symlink_readpage
++};
++
++SQSH_EXTERN const struct address_space_operations squashfs_aops = {
++	.readpage = squashfs_readpage
++};
++
++static const struct file_operations squashfs_dir_ops = {
++	.read = generic_read_dir,
++	.readdir = squashfs_readdir
++};
++
++SQSH_EXTERN struct inode_operations squashfs_dir_inode_ops = {
++	.lookup = squashfs_lookup
++};
++
++
++static struct buffer_head *get_block_length(struct super_block *s,
++				int *cur_index, int *offset, int *c_byte)
++{
++	struct squashfs_sb_info *msblk = s->s_fs_info;
++	unsigned short temp;
++	struct buffer_head *bh;
++
++	if (!(bh = sb_bread(s, *cur_index)))
++		goto out;
++
++	if (msblk->devblksize - *offset == 1) {
++		if (msblk->swap)
++			((unsigned char *) &temp)[1] = *((unsigned char *)
++				(bh->b_data + *offset));
++		else
++			((unsigned char *) &temp)[0] = *((unsigned char *)
++				(bh->b_data + *offset));
++		brelse(bh);
++		if (!(bh = sb_bread(s, ++(*cur_index))))
++			goto out;
++		if (msblk->swap)
++			((unsigned char *) &temp)[0] = *((unsigned char *)
++				bh->b_data); 
++		else
++			((unsigned char *) &temp)[1] = *((unsigned char *)
++				bh->b_data); 
++		*c_byte = temp;
++		*offset = 1;
++	} else {
++		if (msblk->swap) {
++			((unsigned char *) &temp)[1] = *((unsigned char *)
++				(bh->b_data + *offset));
++			((unsigned char *) &temp)[0] = *((unsigned char *)
++				(bh->b_data + *offset + 1)); 
++		} else {
++			((unsigned char *) &temp)[0] = *((unsigned char *)
++				(bh->b_data + *offset));
++			((unsigned char *) &temp)[1] = *((unsigned char *)
++				(bh->b_data + *offset + 1)); 
++		}
++		*c_byte = temp;
++		*offset += 2;
++	}
++
++	if (SQUASHFS_CHECK_DATA(msblk->sblk.flags)) {
++		if (*offset == msblk->devblksize) {
++			brelse(bh);
++			if (!(bh = sb_bread(s, ++(*cur_index))))
++				goto out;
++			*offset = 0;
++		}
++		if (*((unsigned char *) (bh->b_data + *offset)) !=
++						SQUASHFS_MARKER_BYTE) {
++			ERROR("Metadata block marker corrupt @ %x\n",
++						*cur_index);
++			brelse(bh);
++			goto out;
++		}
++		(*offset)++;
++	}
++	return bh;
++
++out:
++	return NULL;
++}
++
++
++SQSH_EXTERN unsigned int squashfs_read_data(struct super_block *s, char *buffer,
++			long long index, unsigned int length,
++			long long *next_index, int srclength)
++{
++	struct squashfs_sb_info *msblk = s->s_fs_info;
++	struct squashfs_super_block *sblk = &msblk->sblk;
++	struct buffer_head **bh;
++	unsigned int offset = index & ((1 << msblk->devblksize_log2) - 1);
++	unsigned int cur_index = index >> msblk->devblksize_log2;
++	int bytes, avail_bytes, b = 0, k = 0;
++	unsigned int compressed;
++	unsigned int c_byte = length;
++
++	bh = kmalloc(((sblk->block_size >> msblk->devblksize_log2) + 1) *
++								sizeof(struct buffer_head *), GFP_KERNEL);
++	if (bh == NULL)
++		goto read_failure;
++
++	if (c_byte) {
++		bytes = msblk->devblksize - offset;
++		compressed = SQUASHFS_COMPRESSED_BLOCK(c_byte);
++		c_byte = SQUASHFS_COMPRESSED_SIZE_BLOCK(c_byte);
++
++		TRACE("Block @ 0x%llx, %scompressed size %d, src size %d\n", index,
++					compressed ? "" : "un", (unsigned int) c_byte, srclength);
++
++		if (c_byte > srclength || index < 0 || (index + c_byte) > sblk->bytes_used)
++			goto read_failure;
++
++		bh[0] = sb_getblk(s, cur_index);
++		if (bh[0] == NULL)
++			goto block_release;
++
++		for (b = 1; bytes < c_byte; b++) {
++			bh[b] = sb_getblk(s, ++cur_index);
++			if (bh[b] == NULL)
++				goto block_release;
++			bytes += msblk->devblksize;
++		}
++		ll_rw_block(READ, b, bh);
++	} else {
++		if (index < 0 || (index + 2) > sblk->bytes_used)
++			goto read_failure;
++
++		bh[0] = get_block_length(s, (int *)&cur_index, (int *)&offset,
++					 (int *)&c_byte);
++		if (bh[0] == NULL)
++			goto read_failure;
++
++		bytes = msblk->devblksize - offset;
++		compressed = SQUASHFS_COMPRESSED(c_byte);
++		c_byte = SQUASHFS_COMPRESSED_SIZE(c_byte);
++
++		TRACE("Block @ 0x%llx, %scompressed size %d\n", index, compressed
++					? "" : "un", (unsigned int) c_byte);
++
++		if (c_byte > srclength || (index + c_byte) > sblk->bytes_used)
++			goto read_failure;
++
++		for (b = 1; bytes < c_byte; b++) {
++			bh[b] = sb_getblk(s, ++cur_index);
++			if (bh[b] == NULL)
++				goto block_release;
++			bytes += msblk->devblksize;
++		}
++		ll_rw_block(READ, b - 1, bh + 1);
++	}
++
++	if (compressed) {
++		int zlib_err = Z_STREAM_END;
++		int rest, start;
++		enum {Src, Dst};
++		struct sized_buf sbuf[2];
++		struct sqlzma *percpu;
++
++		/*
++	 	* uncompress block
++	 	*/
++
++		for (k = 0; k < b; k++) {
++			wait_on_buffer(bh[k]);
++			if (!buffer_uptodate(bh[k]))
++				goto block_release;
++		}
++
++		avail_bytes = 0;
++		for (k = 0; !avail_bytes && k < b; k++) {
++			avail_bytes = msblk->devblksize - offset;
++			if (c_byte < avail_bytes)
++				avail_bytes = c_byte;
++			if (avail_bytes)
++				break;
++			offset = 0;
++			brelse(bh[k]);
++		}
++		bytes = 0;
++		if (!avail_bytes)
++			goto block_release; // nothing to be process
++
++		start = k;
++		/* it disables preemption */
++		percpu = get_cpu_var(sqlzma);
++#ifdef KeepPreemptive
++		put_cpu_var(sqlzma);
++		mutex_lock(&percpu->mtx);
++#endif
++
++		for (; k < b; k++) {
++			memcpy(percpu->read_data + bytes, bh[k]->b_data + offset,
++			       avail_bytes);
++			bytes += avail_bytes;
++			offset = 0;
++			brelse(bh[k]);
++			avail_bytes = msblk->devblksize - offset;
++			rest = c_byte - bytes;
++			if (rest < avail_bytes)
++				avail_bytes = rest;
++		}
++
++		sbuf[Src].buf = percpu->read_data;
++		sbuf[Src].sz = bytes;
++		sbuf[Dst].buf = buffer;
++		sbuf[Dst].sz = srclength;
++		dpri_un(&percpu->un);
++		dpri("src %d %p, dst %d %p\n", sbuf[Src].sz, sbuf[Src].buf,
++		     sbuf[Dst].sz, sbuf[Dst].buf);
++		zlib_err = sqlzma_un(&percpu->un, sbuf + Src, sbuf + Dst);
++		bytes = percpu->un.un_reslen;
++
++#ifdef KeepPreemptive
++		mutex_unlock(&percpu->mtx);
++#else
++		put_cpu_var(sqlzma);
++#endif
++		if (unlikely(zlib_err)) {
++			dpri("zlib_err %d\n", zlib_err);
++			goto release_mutex;
++		}
++	} else {
++		int i;
++
++		for(i = 0; i < b; i++) {
++			wait_on_buffer(bh[i]);
++			if (!buffer_uptodate(bh[i]))
++				goto block_release;
++		}
++
++		for (bytes = 0; k < b; k++) {
++			avail_bytes = min(c_byte - bytes, msblk->devblksize - offset);
++
++			memcpy(buffer + bytes, bh[k]->b_data + offset, avail_bytes);
++			bytes += avail_bytes;
++			offset = 0;
++			brelse(bh[k]);
++		}
++	}
++
++	if (next_index)
++		*next_index = index + c_byte + (length ? 0 :
++				(SQUASHFS_CHECK_DATA(msblk->sblk.flags) ? 3 : 2));
++
++	kfree(bh);
++	return bytes;
++
++release_mutex:
++	//mutex_unlock(&msblk->read_data_mutex);
++
++block_release:
++	for (; k < b; k++)
++		brelse(bh[k]);
++
++read_failure:
++	ERROR("sb_bread failed reading block 0x%x\n", cur_index);
++	kfree(bh);
++	return 0;
++}
++
++
++SQSH_EXTERN int squashfs_get_cached_block(struct super_block *s, void *buffer,
++				long long block, unsigned int offset,
++				int length, long long *next_block,
++				unsigned int *next_offset)
++{
++	struct squashfs_sb_info *msblk = s->s_fs_info;
++	int n, i, bytes, return_length = length;
++	long long next_index;
++
++	TRACE("Entered squashfs_get_cached_block [%llx:%x]\n", block, offset);
++
++	while (1) {
++		for (i = 0; i < squashfs_cached_blks; i++) 
++			if (msblk->block_cache[i].block == block)
++				break; 
++		
++		mutex_lock(&msblk->block_cache_mutex);
++
++		if (i == squashfs_cached_blks) {
++			/* read inode header block */
++			if (msblk->unused_cache_blks == 0) {
++				mutex_unlock(&msblk->block_cache_mutex);
++				wait_event(msblk->waitq, msblk->unused_cache_blks);
++				continue;
++			}
++
++			i = msblk->next_cache;
++			for (n = 0; n < squashfs_cached_blks; n++) {
++				if (msblk->block_cache[i].block != SQUASHFS_USED_BLK)
++					break;
++				i = (i + 1) % squashfs_cached_blks;
++			}
++
++			msblk->next_cache = (i + 1) % squashfs_cached_blks;
++
++			if (msblk->block_cache[i].block == SQUASHFS_INVALID_BLK) {
++				msblk->block_cache[i].data = vmalloc(SQUASHFS_METADATA_SIZE);
++				if (msblk->block_cache[i].data == NULL) {
++					ERROR("Failed to allocate cache block\n");
++					mutex_unlock(&msblk->block_cache_mutex);
++					goto out;
++				}
++			}
++	
++			msblk->block_cache[i].block = SQUASHFS_USED_BLK;
++			msblk->unused_cache_blks --;
++			mutex_unlock(&msblk->block_cache_mutex);
++
++			msblk->block_cache[i].length = squashfs_read_data(s,
++				msblk->block_cache[i].data, block, 0, &next_index,
++				SQUASHFS_METADATA_SIZE);
++
++			if (msblk->block_cache[i].length == 0) {
++				ERROR("Unable to read cache block [%llx:%x]\n", block, offset);
++				mutex_lock(&msblk->block_cache_mutex);
++				msblk->block_cache[i].block = SQUASHFS_INVALID_BLK;
++				msblk->unused_cache_blks ++;
++				smp_mb();
++				vfree(msblk->block_cache[i].data);
++				wake_up(&msblk->waitq);
++				mutex_unlock(&msblk->block_cache_mutex);
++				goto out;
++			}
++
++			mutex_lock(&msblk->block_cache_mutex);
++			msblk->block_cache[i].block = block;
++			msblk->block_cache[i].next_index = next_index;
++			msblk->unused_cache_blks ++;
++			smp_mb();
++			wake_up(&msblk->waitq);
++			TRACE("Read cache block [%llx:%x]\n", block, offset);
++		}
++
++		if (msblk->block_cache[i].block != block) {
++			mutex_unlock(&msblk->block_cache_mutex);
++			continue;
++		}
++
++		bytes = msblk->block_cache[i].length - offset;
++
++		if (bytes < 1) {
++			mutex_unlock(&msblk->block_cache_mutex);
++			goto out;
++		} else if (bytes >= length) {
++			if (buffer)
++				memcpy(buffer, msblk->block_cache[i].data + offset, length);
++			if (msblk->block_cache[i].length - offset == length) {
++				*next_block = msblk->block_cache[i].next_index;
++				*next_offset = 0;
++			} else {
++				*next_block = block;
++				*next_offset = offset + length;
++			}
++			mutex_unlock(&msblk->block_cache_mutex);
++			goto finish;
++		} else {
++			if (buffer) {
++				memcpy(buffer, msblk->block_cache[i].data + offset, bytes);
++				buffer = (char *) buffer + bytes;
++			}
++			block = msblk->block_cache[i].next_index;
++			mutex_unlock(&msblk->block_cache_mutex);
++			length -= bytes;
++			offset = 0;
++		}
++	}
++
++finish:
++	return return_length;
++out:
++	return 0;
++}
++
++
++static int get_fragment_location(struct super_block *s, unsigned int fragment,
++				long long *fragment_start_block,
++				unsigned int *fragment_size)
++{
++	struct squashfs_sb_info *msblk = s->s_fs_info;
++	long long start_block =
++		msblk->fragment_index[SQUASHFS_FRAGMENT_INDEX(fragment)];
++	int offset = SQUASHFS_FRAGMENT_INDEX_OFFSET(fragment);
++	struct squashfs_fragment_entry fragment_entry;
++
++	if (msblk->swap) {
++		struct squashfs_fragment_entry sfragment_entry;
++
++		if (!squashfs_get_cached_block(s, &sfragment_entry, start_block, offset,
++					 sizeof(sfragment_entry), &start_block,
++					       (unsigned int *)&offset))
++			goto out;
++		SQUASHFS_SWAP_FRAGMENT_ENTRY(&fragment_entry, &sfragment_entry);
++	} else
++		if (!squashfs_get_cached_block(s, &fragment_entry, start_block, offset,
++					 sizeof(fragment_entry), &start_block,
++					       (unsigned int *)&offset))
++			goto out;
++
++	*fragment_start_block = fragment_entry.start_block;
++	*fragment_size = fragment_entry.size;
++
++	return 1;
++
++out:
++	return 0;
++}
++
++
++SQSH_EXTERN void release_cached_fragment(struct squashfs_sb_info *msblk,
++				struct squashfs_fragment_cache *fragment)
++{
++	mutex_lock(&msblk->fragment_mutex);
++	fragment->locked --;
++	if (fragment->locked == 0) {
++		msblk->unused_frag_blks ++;
++		smp_mb();
++		wake_up(&msblk->fragment_wait_queue);
++	}
++	mutex_unlock(&msblk->fragment_mutex);
++}
++
++
++SQSH_EXTERN
++struct squashfs_fragment_cache *get_cached_fragment(struct super_block *s,
++				long long start_block, int length)
++{
++	int i, n;
++	struct squashfs_sb_info *msblk = s->s_fs_info;
++	struct squashfs_super_block *sblk = &msblk->sblk;
++
++	while (1) {
++		mutex_lock(&msblk->fragment_mutex);
++
++		for (i = 0; i < SQUASHFS_CACHED_FRAGMENTS &&
++				msblk->fragment[i].block != start_block; i++);
++
++		if (i == SQUASHFS_CACHED_FRAGMENTS) {
++			if (msblk->unused_frag_blks == 0) {
++				mutex_unlock(&msblk->fragment_mutex);
++				wait_event(msblk->fragment_wait_queue, msblk->unused_frag_blks);
++				continue;
++			}
++
++			i = msblk->next_fragment;
++			for (n = 0; n < SQUASHFS_CACHED_FRAGMENTS; n++) {
++				if (msblk->fragment[i].locked == 0)
++					break;
++				i = (i + 1) % SQUASHFS_CACHED_FRAGMENTS;
++			}
++
++			msblk->next_fragment = (msblk->next_fragment + 1) %
++				SQUASHFS_CACHED_FRAGMENTS;
++			
++			if (msblk->fragment[i].data == NULL) {
++				msblk->fragment[i].data = vmalloc(sblk->block_size);
++				if (msblk->fragment[i].data == NULL) {
++					ERROR("Failed to allocate fragment cache block\n");
++					mutex_unlock(&msblk->fragment_mutex);
++					goto out;
++				}
++			}
++
++			msblk->unused_frag_blks --;
++			msblk->fragment[i].block = SQUASHFS_INVALID_BLK;
++			msblk->fragment[i].locked = 1;
++			mutex_unlock(&msblk->fragment_mutex);
++
++			msblk->fragment[i].length = squashfs_read_data(s,
++				msblk->fragment[i].data, start_block, length, NULL,
++				sblk->block_size);
++
++			if (msblk->fragment[i].length == 0) {
++				ERROR("Unable to read fragment cache block [%llx]\n", start_block);
++				msblk->fragment[i].locked = 0;
++				msblk->unused_frag_blks ++;
++				smp_mb();
++				wake_up(&msblk->fragment_wait_queue);
++				goto out;
++			}
++
++			mutex_lock(&msblk->fragment_mutex);
++			msblk->fragment[i].block = start_block;
++			TRACE("New fragment %d, start block %lld, locked %d\n",
++				i, msblk->fragment[i].block, msblk->fragment[i].locked);
++			mutex_unlock(&msblk->fragment_mutex);
++			break;
++		}
++
++		if (msblk->fragment[i].locked == 0)
++			msblk->unused_frag_blks --;
++		msblk->fragment[i].locked++;
++		mutex_unlock(&msblk->fragment_mutex);
++		TRACE("Got fragment %d, start block %lld, locked %d\n", i,
++			msblk->fragment[i].block, msblk->fragment[i].locked);
++		break;
++	}
++
++	return &msblk->fragment[i];
++
++out:
++	return NULL;
++}
++
++
++static void squashfs_new_inode(struct squashfs_sb_info *msblk, struct inode *i,
++				struct squashfs_base_inode_header *inodeb)
++{
++	i->i_ino = inodeb->inode_number;
++	i->i_mtime.tv_sec = inodeb->mtime;
++	i->i_atime.tv_sec = inodeb->mtime;
++	i->i_ctime.tv_sec = inodeb->mtime;
++	i->i_uid = msblk->uid[inodeb->uid];
++	i->i_mode = inodeb->mode;
++	i->i_size = 0;
++
++	if (inodeb->guid == SQUASHFS_GUIDS)
++		i->i_gid = i->i_uid;
++	else
++		i->i_gid = msblk->guid[inodeb->guid];
++}
++
++
++static squashfs_inode_t squashfs_inode_lookup(struct super_block *s, int ino)
++{
++	struct squashfs_sb_info *msblk = s->s_fs_info;
++	long long start = msblk->inode_lookup_table[SQUASHFS_LOOKUP_BLOCK(ino - 1)];
++	int offset = SQUASHFS_LOOKUP_BLOCK_OFFSET(ino - 1);
++	squashfs_inode_t inode;
++
++	TRACE("Entered squashfs_inode_lookup, inode_number = %d\n", ino);
++
++	if (msblk->swap) {
++		squashfs_inode_t sinode;
++
++		if (!squashfs_get_cached_block(s, &sinode, start, offset,
++					sizeof(sinode), &start, (unsigned int *)&offset))
++			goto out;
++		SQUASHFS_SWAP_INODE_T((&inode), &sinode);
++	} else if (!squashfs_get_cached_block(s, &inode, start, offset,
++					sizeof(inode), &start, (unsigned int *)&offset))
++			goto out;
++
++	TRACE("squashfs_inode_lookup, inode = 0x%llx\n", inode);
++
++	return inode;
++
++out:
++	return SQUASHFS_INVALID_BLK;
++}
++	
++
++static void vfs_read_inode(struct inode *i)
++{
++	struct squashfs_sb_info *msblk = i->i_sb->s_fs_info;
++	squashfs_inode_t inode = squashfs_inode_lookup(i->i_sb, i->i_ino);
++
++	TRACE("Entered vfs_read_inode\n");
++
++	if(inode != SQUASHFS_INVALID_BLK)
++		(msblk->read_inode)(i, inode);
++}
++
++
++static struct dentry *squashfs_get_parent(struct dentry *child)
++{
++	struct inode *i = child->d_inode;
++	struct inode *parent = iget(i->i_sb, SQUASHFS_I(i)->u.s2.parent_inode);
++	struct dentry *rv;
++
++	TRACE("Entered squashfs_get_parent\n");
++
++	if(parent == NULL) {
++		rv = ERR_PTR(-EACCES);
++		goto out;
++	}
++
++	rv = d_alloc_anon(parent);
++	if(rv == NULL)
++		rv = ERR_PTR(-ENOMEM);
++
++out:
++	return rv;
++}
++
++	
++SQSH_EXTERN struct inode *squashfs_iget(struct super_block *s,
++				squashfs_inode_t inode, unsigned int inode_number)
++{
++	struct squashfs_sb_info *msblk = s->s_fs_info;
++	struct inode *i = iget_locked(s, inode_number);
++
++	TRACE("Entered squashfs_iget\n");
++
++	if(i && (i->i_state & I_NEW)) {
++		(msblk->read_inode)(i, inode);
++		unlock_new_inode(i);
++	}
++
++	return i;
++}
++
++
++static int squashfs_read_inode(struct inode *i, squashfs_inode_t inode)
++{
++	struct super_block *s = i->i_sb;
++	struct squashfs_sb_info *msblk = s->s_fs_info;
++	struct squashfs_super_block *sblk = &msblk->sblk;
++	long long block = SQUASHFS_INODE_BLK(inode) + sblk->inode_table_start;
++	unsigned int offset = SQUASHFS_INODE_OFFSET(inode);
++	long long next_block;
++	unsigned int next_offset;
++	union squashfs_inode_header id, sid;
++	struct squashfs_base_inode_header *inodeb = &id.base, *sinodeb = &sid.base;
++
++	TRACE("Entered squashfs_read_inode\n");
++
++	if (msblk->swap) {
++		if (!squashfs_get_cached_block(s, sinodeb, block, offset,
++					sizeof(*sinodeb), &next_block, &next_offset))
++			goto failed_read;
++		SQUASHFS_SWAP_BASE_INODE_HEADER(inodeb, sinodeb, sizeof(*sinodeb));
++	} else
++		if (!squashfs_get_cached_block(s, inodeb, block, offset,
++					sizeof(*inodeb), &next_block, &next_offset))
++			goto failed_read;
++
++	squashfs_new_inode(msblk, i, inodeb);
++
++	switch(inodeb->inode_type) {
++		case SQUASHFS_FILE_TYPE: {
++			unsigned int frag_size;
++			long long frag_blk;
++			struct squashfs_reg_inode_header *inodep = &id.reg;
++			struct squashfs_reg_inode_header *sinodep = &sid.reg;
++				
++			if (msblk->swap) {
++				if (!squashfs_get_cached_block(s, sinodep, block, offset,
++						sizeof(*sinodep), &next_block, &next_offset))
++					goto failed_read;
++				SQUASHFS_SWAP_REG_INODE_HEADER(inodep, sinodep);
++			} else
++				if (!squashfs_get_cached_block(s, inodep, block, offset,
++						sizeof(*inodep), &next_block, &next_offset))
++					goto failed_read;
++
++			frag_blk = SQUASHFS_INVALID_BLK;
++
++			if (inodep->fragment != SQUASHFS_INVALID_FRAG)
++					if(!get_fragment_location(s, inodep->fragment, &frag_blk,
++												&frag_size))
++						goto failed_read;
++				
++			i->i_nlink = 1;
++			i->i_size = inodep->file_size;
++			i->i_fop = &generic_ro_fops;
++			i->i_mode |= S_IFREG;
++			i->i_blocks = ((i->i_size - 1) >> 9) + 1;
++			SQUASHFS_I(i)->u.s1.fragment_start_block = frag_blk;
++			SQUASHFS_I(i)->u.s1.fragment_size = frag_size;
++			SQUASHFS_I(i)->u.s1.fragment_offset = inodep->offset;
++			SQUASHFS_I(i)->start_block = inodep->start_block;
++			SQUASHFS_I(i)->u.s1.block_list_start = next_block;
++			SQUASHFS_I(i)->offset = next_offset;
++			i->i_data.a_ops = &squashfs_aops;
++
++			TRACE("File inode %x:%x, start_block %llx, "
++					"block_list_start %llx, offset %x\n",
++					SQUASHFS_INODE_BLK(inode), offset,
++					inodep->start_block, next_block,
++					next_offset);
++			break;
++		}
++		case SQUASHFS_LREG_TYPE: {
++			unsigned int frag_size;
++			long long frag_blk;
++			struct squashfs_lreg_inode_header *inodep = &id.lreg;
++			struct squashfs_lreg_inode_header *sinodep = &sid.lreg;
++				
++			if (msblk->swap) {
++				if (!squashfs_get_cached_block(s, sinodep, block, offset,
++						sizeof(*sinodep), &next_block, &next_offset))
++					goto failed_read;
++				SQUASHFS_SWAP_LREG_INODE_HEADER(inodep, sinodep);
++			} else
++				if (!squashfs_get_cached_block(s, inodep, block, offset,
++						sizeof(*inodep), &next_block, &next_offset))
++					goto failed_read;
++
++			frag_blk = SQUASHFS_INVALID_BLK;
++
++			if (inodep->fragment != SQUASHFS_INVALID_FRAG)
++				if (!get_fragment_location(s, inodep->fragment, &frag_blk,
++												 &frag_size))
++					goto failed_read;
++				
++			i->i_nlink = inodep->nlink;
++			i->i_size = inodep->file_size;
++			i->i_fop = &generic_ro_fops;
++			i->i_mode |= S_IFREG;
++			i->i_blocks = ((i->i_size - 1) >> 9) + 1;
++			SQUASHFS_I(i)->u.s1.fragment_start_block = frag_blk;
++			SQUASHFS_I(i)->u.s1.fragment_size = frag_size;
++			SQUASHFS_I(i)->u.s1.fragment_offset = inodep->offset;
++			SQUASHFS_I(i)->start_block = inodep->start_block;
++			SQUASHFS_I(i)->u.s1.block_list_start = next_block;
++			SQUASHFS_I(i)->offset = next_offset;
++			i->i_data.a_ops = &squashfs_aops;
++
++			TRACE("File inode %x:%x, start_block %llx, "
++					"block_list_start %llx, offset %x\n",
++					SQUASHFS_INODE_BLK(inode), offset,
++					inodep->start_block, next_block,
++					next_offset);
++			break;
++		}
++		case SQUASHFS_DIR_TYPE: {
++			struct squashfs_dir_inode_header *inodep = &id.dir;
++			struct squashfs_dir_inode_header *sinodep = &sid.dir;
++
++			if (msblk->swap) {
++				if (!squashfs_get_cached_block(s, sinodep, block, offset,
++						sizeof(*sinodep), &next_block, &next_offset))
++					goto failed_read;
++				SQUASHFS_SWAP_DIR_INODE_HEADER(inodep, sinodep);
++			} else
++				if (!squashfs_get_cached_block(s, inodep, block, offset,
++						sizeof(*inodep), &next_block, &next_offset))
++					goto failed_read;
++
++			i->i_nlink = inodep->nlink;
++			i->i_size = inodep->file_size;
++			i->i_op = &squashfs_dir_inode_ops;
++			i->i_fop = &squashfs_dir_ops;
++			i->i_mode |= S_IFDIR;
++			SQUASHFS_I(i)->start_block = inodep->start_block;
++			SQUASHFS_I(i)->offset = inodep->offset;
++			SQUASHFS_I(i)->u.s2.directory_index_count = 0;
++			SQUASHFS_I(i)->u.s2.parent_inode = inodep->parent_inode;
++
++			TRACE("Directory inode %x:%x, start_block %x, offset "
++					"%x\n", SQUASHFS_INODE_BLK(inode),
++					offset, inodep->start_block,
++					inodep->offset);
++			break;
++		}
++		case SQUASHFS_LDIR_TYPE: {
++			struct squashfs_ldir_inode_header *inodep = &id.ldir;
++			struct squashfs_ldir_inode_header *sinodep = &sid.ldir;
++
++			if (msblk->swap) {
++				if (!squashfs_get_cached_block(s, sinodep, block, offset,
++						sizeof(*sinodep), &next_block, &next_offset))
++					goto failed_read;
++				SQUASHFS_SWAP_LDIR_INODE_HEADER(inodep, sinodep);
++			} else
++				if (!squashfs_get_cached_block(s, inodep, block, offset,
++						sizeof(*inodep), &next_block, &next_offset))
++					goto failed_read;
++
++			i->i_nlink = inodep->nlink;
++			i->i_size = inodep->file_size;
++			i->i_op = &squashfs_dir_inode_ops;
++			i->i_fop = &squashfs_dir_ops;
++			i->i_mode |= S_IFDIR;
++			SQUASHFS_I(i)->start_block = inodep->start_block;
++			SQUASHFS_I(i)->offset = inodep->offset;
++			SQUASHFS_I(i)->u.s2.directory_index_start = next_block;
++			SQUASHFS_I(i)->u.s2.directory_index_offset = next_offset;
++			SQUASHFS_I(i)->u.s2.directory_index_count = inodep->i_count;
++			SQUASHFS_I(i)->u.s2.parent_inode = inodep->parent_inode;
++
++			TRACE("Long directory inode %x:%x, start_block %x, offset %x\n",
++					SQUASHFS_INODE_BLK(inode), offset,
++					inodep->start_block, inodep->offset);
++			break;
++		}
++		case SQUASHFS_SYMLINK_TYPE: {
++			struct squashfs_symlink_inode_header *inodep = &id.symlink;
++			struct squashfs_symlink_inode_header *sinodep = &sid.symlink;
++	
++			if (msblk->swap) {
++				if (!squashfs_get_cached_block(s, sinodep, block, offset,
++						sizeof(*sinodep), &next_block, &next_offset))
++					goto failed_read;
++				SQUASHFS_SWAP_SYMLINK_INODE_HEADER(inodep, sinodep);
++			} else
++				if (!squashfs_get_cached_block(s, inodep, block, offset,
++						sizeof(*inodep), &next_block, &next_offset))
++					goto failed_read;
++
++			i->i_nlink = inodep->nlink;
++			i->i_size = inodep->symlink_size;
++			i->i_op = &page_symlink_inode_operations;
++			i->i_data.a_ops = &squashfs_symlink_aops;
++			i->i_mode |= S_IFLNK;
++			SQUASHFS_I(i)->start_block = next_block;
++			SQUASHFS_I(i)->offset = next_offset;
++
++			TRACE("Symbolic link inode %x:%x, start_block %llx, offset %x\n",
++					SQUASHFS_INODE_BLK(inode), offset,
++					next_block, next_offset);
++			break;
++		 }
++		 case SQUASHFS_BLKDEV_TYPE:
++		 case SQUASHFS_CHRDEV_TYPE: {
++			struct squashfs_dev_inode_header *inodep = &id.dev;
++			struct squashfs_dev_inode_header *sinodep = &sid.dev;
++
++			if (msblk->swap) {
++				if (!squashfs_get_cached_block(s, sinodep, block, offset,
++						sizeof(*sinodep), &next_block, &next_offset))
++					goto failed_read;
++				SQUASHFS_SWAP_DEV_INODE_HEADER(inodep, sinodep);
++			} else	
++				if (!squashfs_get_cached_block(s, inodep, block, offset,
++						sizeof(*inodep), &next_block, &next_offset))
++					goto failed_read;
++
++			i->i_nlink = inodep->nlink;
++			i->i_mode |= (inodeb->inode_type == SQUASHFS_CHRDEV_TYPE) ?
++					S_IFCHR : S_IFBLK;
++			init_special_inode(i, i->i_mode, old_decode_dev(inodep->rdev));
++
++			TRACE("Device inode %x:%x, rdev %x\n",
++					SQUASHFS_INODE_BLK(inode), offset, inodep->rdev);
++			break;
++		 }
++		 case SQUASHFS_FIFO_TYPE:
++		 case SQUASHFS_SOCKET_TYPE: {
++			struct squashfs_ipc_inode_header *inodep = &id.ipc;
++			struct squashfs_ipc_inode_header *sinodep = &sid.ipc;
++
++			if (msblk->swap) {
++				if (!squashfs_get_cached_block(s, sinodep, block, offset,
++						sizeof(*sinodep), &next_block, &next_offset))
++					goto failed_read;
++				SQUASHFS_SWAP_IPC_INODE_HEADER(inodep, sinodep);
++			} else	
++				if (!squashfs_get_cached_block(s, inodep, block, offset,
++						sizeof(*inodep), &next_block, &next_offset))
++					goto failed_read;
++
++			i->i_nlink = inodep->nlink;
++			i->i_mode |= (inodeb->inode_type == SQUASHFS_FIFO_TYPE)
++							? S_IFIFO : S_IFSOCK;
++			init_special_inode(i, i->i_mode, 0);
++			break;
++		 }
++		 default:
++			ERROR("Unknown inode type %d in squashfs_iget!\n",
++					inodeb->inode_type);
++			goto failed_read1;
++	}
++	
++	return 1;
++
++failed_read:
++	ERROR("Unable to read inode [%llx:%x]\n", block, offset);
++
++failed_read1:
++	make_bad_inode(i);
++	return 0;
++}
++
++
++static int read_inode_lookup_table(struct super_block *s)
++{
++	struct squashfs_sb_info *msblk = s->s_fs_info;
++	struct squashfs_super_block *sblk = &msblk->sblk;
++	unsigned int length = SQUASHFS_LOOKUP_BLOCK_BYTES(sblk->inodes);
++
++	TRACE("In read_inode_lookup_table, length %d\n", length);
++
++	/* Allocate inode lookup table */
++	msblk->inode_lookup_table = kmalloc(length, GFP_KERNEL);
++	if (msblk->inode_lookup_table == NULL) {
++		ERROR("Failed to allocate inode lookup table\n");
++		return 0;
++	}
++   
++	if (!squashfs_read_data(s, (char *) msblk->inode_lookup_table,
++			sblk->lookup_table_start, length |
++			SQUASHFS_COMPRESSED_BIT_BLOCK, NULL, length)) {
++		ERROR("unable to read inode lookup table\n");
++		return 0;
++	}
++
++	if (msblk->swap) {
++		int i;
++		long long block;
++
++		for (i = 0; i < SQUASHFS_LOOKUP_BLOCKS(sblk->inodes); i++) {
++			/* XXX */
++			SQUASHFS_SWAP_LOOKUP_BLOCKS((&block),
++						&msblk->inode_lookup_table[i], 1);
++			msblk->inode_lookup_table[i] = block;
++		}
++	}
++
++	return 1;
++}
++
++
++static int read_fragment_index_table(struct super_block *s)
++{
++	struct squashfs_sb_info *msblk = s->s_fs_info;
++	struct squashfs_super_block *sblk = &msblk->sblk;
++	unsigned int length = SQUASHFS_FRAGMENT_INDEX_BYTES(sblk->fragments);
++
++	if(length == 0)
++		return 1;
++
++	/* Allocate fragment index table */
++	msblk->fragment_index = kmalloc(length, GFP_KERNEL);
++	if (msblk->fragment_index == NULL) {
++		ERROR("Failed to allocate fragment index table\n");
++		return 0;
++	}
++   
++	if (!squashfs_read_data(s, (char *) msblk->fragment_index,
++			sblk->fragment_table_start, length |
++			SQUASHFS_COMPRESSED_BIT_BLOCK, NULL, length)) {
++		ERROR("unable to read fragment index table\n");
++		return 0;
++	}
++
++	if (msblk->swap) {
++		int i;
++		long long fragment;
++
++		for (i = 0; i < SQUASHFS_FRAGMENT_INDEXES(sblk->fragments); i++) {
++			/* XXX */
++			SQUASHFS_SWAP_FRAGMENT_INDEXES((&fragment),
++						&msblk->fragment_index[i], 1);
++			msblk->fragment_index[i] = fragment;
++		}
++	}
++
++	return 1;
++}
++
++
++static int readahead_metadata(struct super_block *s)
++{
++	struct squashfs_sb_info *msblk = s->s_fs_info;
++	int i;
++
++	squashfs_cached_blks = SQUASHFS_CACHED_BLKS;
++
++	/* Init inode_table block pointer array */
++	msblk->block_cache = kmalloc(sizeof(struct squashfs_cache) *
++					squashfs_cached_blks, GFP_KERNEL);
++	if (msblk->block_cache == NULL) {
++		ERROR("Failed to allocate block cache\n");
++		goto failed;
++	}
++
++	for (i = 0; i < squashfs_cached_blks; i++)
++		msblk->block_cache[i].block = SQUASHFS_INVALID_BLK;
++
++	msblk->next_cache = 0;
++	msblk->unused_cache_blks = squashfs_cached_blks;
++
++	return 1;
++
++failed:
++	return 0;
++}
++
++
++static int supported_squashfs_filesystem(struct squashfs_sb_info *msblk, int silent)
++{
++	struct squashfs_super_block *sblk = &msblk->sblk;
++
++	msblk->read_inode = squashfs_read_inode;
++	msblk->read_blocklist = read_blocklist;
++	msblk->read_fragment_index_table = read_fragment_index_table;
++
++	if (sblk->s_major == 1) {
++		if (!squashfs_1_0_supported(msblk)) {
++			SERROR("Major/Minor mismatch, Squashfs 1.0 filesystems "
++				"are unsupported\n");
++			SERROR("Please recompile with Squashfs 1.0 support enabled\n");
++			return 0;
++		}
++	} else if (sblk->s_major == 2) {
++		if (!squashfs_2_0_supported(msblk)) {
++			SERROR("Major/Minor mismatch, Squashfs 2.0 filesystems "
++				"are unsupported\n");
++			SERROR("Please recompile with Squashfs 2.0 support enabled\n");
++			return 0;
++		}
++	} else if(sblk->s_major != SQUASHFS_MAJOR || sblk->s_minor >
++			SQUASHFS_MINOR) {
++		SERROR("Major/Minor mismatch, trying to mount newer %d.%d "
++				"filesystem\n", sblk->s_major, sblk->s_minor);
++		SERROR("Please update your kernel\n");
++		return 0;
++	}
++
++	return 1;
++}
++
++
++static int squashfs_fill_super(struct super_block *s, void *data, int silent)
++{
++	struct squashfs_sb_info *msblk;
++	struct squashfs_super_block *sblk;
++	int i, err;
++	char b[BDEVNAME_SIZE];
++	struct inode *root;
++
++	TRACE("Entered squashfs_fill_superblock\n");
++
++	err = -ENOMEM;
++	s->s_fs_info = kzalloc(sizeof(struct squashfs_sb_info), GFP_KERNEL);
++	if (s->s_fs_info == NULL) {
++		ERROR("Failed to allocate superblock\n");
++		goto failure;
++	}
++	msblk = s->s_fs_info;
++
++	sblk = &msblk->sblk;
++	
++	msblk->devblksize = sb_min_blocksize(s, BLOCK_SIZE);
++	msblk->devblksize_log2 = ffz(~msblk->devblksize);
++
++	//mutex_init(&msblk->read_data_mutex);
++	mutex_init(&msblk->read_page_mutex);
++	mutex_init(&msblk->block_cache_mutex);
++	mutex_init(&msblk->fragment_mutex);
++	mutex_init(&msblk->meta_index_mutex);
++	
++	init_waitqueue_head(&msblk->waitq);
++	init_waitqueue_head(&msblk->fragment_wait_queue);
++
++	/* sblk->bytes_used is checked in squashfs_read_data to ensure reads are not
++ 	 * beyond filesystem end.  As we're using squashfs_read_data to read sblk here,
++ 	 * first set sblk->bytes_used to a useful value */
++	err = -EINVAL;
++	sblk->bytes_used = sizeof(struct squashfs_super_block);
++	if (!squashfs_read_data(s, (char *) sblk, SQUASHFS_START,
++					sizeof(struct squashfs_super_block) |
++					SQUASHFS_COMPRESSED_BIT_BLOCK, NULL, sizeof(struct squashfs_super_block))) {
++		SERROR("unable to read superblock\n");
++		goto failed_mount;
++	}
++
++	/* Check it is a SQUASHFS superblock */
++	s->s_magic = sblk->s_magic;
++	msblk->swap = 0;
++	dpri("magic 0x%x\n", sblk->s_magic);
++	switch (sblk->s_magic) {
++		struct squashfs_super_block ssblk;
++
++	case SQUASHFS_MAGIC_SWAP:
++		/*FALLTHROUGH*/
++	case SQUASHFS_MAGIC_LZMA_SWAP:
++		WARNING("Mounting a different endian SQUASHFS "
++			"filesystem on %s\n", bdevname(s->s_bdev, b));
++
++		SQUASHFS_SWAP_SUPER_BLOCK(&ssblk, sblk);
++		memcpy(sblk, &ssblk, sizeof(struct squashfs_super_block));
++		msblk->swap = 1;
++		/*FALLTHROUGH*/
++	case SQUASHFS_MAGIC:
++	case SQUASHFS_MAGIC_LZMA:
++		break;
++	default:
++		SERROR("Can't find a SQUASHFS superblock on %s\n",
++		       bdevname(s->s_bdev, b));
++		goto failed_mount;
++	}
++
++	{
++		struct sqlzma *p;
++		dpri("block_size %d\n", sblk->block_size);
++		BUG_ON(sblk->block_size > sizeof(p->read_data));
++	}
++
++	/* Check the MAJOR & MINOR versions */
++	if(!supported_squashfs_filesystem(msblk, silent))
++		goto failed_mount;
++
++	/* Check the filesystem does not extend beyond the end of the
++	   block device */
++	if(sblk->bytes_used < 0 || sblk->bytes_used > i_size_read(s->s_bdev->bd_inode))
++		goto failed_mount;
++
++	/* Check the root inode for sanity */
++	if (SQUASHFS_INODE_OFFSET(sblk->root_inode) > SQUASHFS_METADATA_SIZE)
++		goto failed_mount;
++
++	TRACE("Found valid superblock on %s\n", bdevname(s->s_bdev, b));
++	TRACE("Inodes are %scompressed\n", SQUASHFS_UNCOMPRESSED_INODES(sblk->flags)
++					? "un" : "");
++	TRACE("Data is %scompressed\n", SQUASHFS_UNCOMPRESSED_DATA(sblk->flags)
++					? "un" : "");
++	TRACE("Check data is %spresent in the filesystem\n",
++					SQUASHFS_CHECK_DATA(sblk->flags) ?  "" : "not ");
++	TRACE("Filesystem size %lld bytes\n", sblk->bytes_used);
++	TRACE("Block size %d\n", sblk->block_size);
++	TRACE("Number of inodes %d\n", sblk->inodes);
++	if (sblk->s_major > 1)
++		TRACE("Number of fragments %d\n", sblk->fragments);
++	TRACE("Number of uids %d\n", sblk->no_uids);
++	TRACE("Number of gids %d\n", sblk->no_guids);
++	TRACE("sblk->inode_table_start %llx\n", sblk->inode_table_start);
++	TRACE("sblk->directory_table_start %llx\n", sblk->directory_table_start);
++	if (sblk->s_major > 1)
++		TRACE("sblk->fragment_table_start %llx\n", sblk->fragment_table_start);
++	TRACE("sblk->uid_start %llx\n", sblk->uid_start);
++
++	s->s_maxbytes = MAX_LFS_FILESIZE;
++	s->s_flags |= MS_RDONLY;
++	s->s_op = &squashfs_super_ops;
++
++	if (readahead_metadata(s) == 0)
++		goto failed_mount;
++
++	/* Allocate read_page block */
++	err = -ENOMEM;
++	msblk->read_page = vmalloc(sblk->block_size);
++	if (msblk->read_page == NULL) {
++		ERROR("Failed to allocate read_page block\n");
++		goto failed_mount;
++	}
++
++	/* Allocate uid and gid tables */
++	msblk->uid = kmalloc((sblk->no_uids + sblk->no_guids) *
++					sizeof(unsigned int), GFP_KERNEL);
++	if (msblk->uid == NULL) {
++		ERROR("Failed to allocate uid/gid table\n");
++		goto failed_mount;
++	}
++	msblk->guid = msblk->uid + sblk->no_uids;
++   
++	dpri("swap %d\n", msblk->swap);
++	err = -EINVAL;
++	if (msblk->swap) {
++		unsigned int *suid;
++
++		err = -ENOMEM;
++		suid = kmalloc(sizeof(*suid) * (sblk->no_uids + sblk->no_guids),
++			       GFP_KERNEL);
++		if (unlikely(!suid))
++			goto failed_mount;
++
++		err = -EINVAL;
++		if (!squashfs_read_data(s, (char *)suid, sblk->uid_start,
++					((sblk->no_uids + sblk->no_guids) *
++					 sizeof(unsigned int)) |
++					SQUASHFS_COMPRESSED_BIT_BLOCK, NULL, (sblk->no_uids + sblk->no_guids) * sizeof(unsigned int))) {
++			ERROR("unable to read uid/gid table\n");
++			kfree(suid);
++			goto failed_mount;
++		}
++
++		SQUASHFS_SWAP_DATA(msblk->uid, suid, (sblk->no_uids +
++			sblk->no_guids), (sizeof(unsigned int) * 8));
++		kfree(suid);
++	} else
++		if (!squashfs_read_data(s, (char *) msblk->uid, sblk->uid_start,
++					((sblk->no_uids + sblk->no_guids) *
++					 sizeof(unsigned int)) |
++					SQUASHFS_COMPRESSED_BIT_BLOCK, NULL, (sblk->no_uids + sblk->no_guids) * sizeof(unsigned int))) {
++			ERROR("unable to read uid/gid table\n");
++			goto failed_mount;
++		}
++
++
++	if (sblk->s_major == 1 && squashfs_1_0_supported(msblk))
++		goto allocate_root;
++
++	err = -ENOMEM;
++	msblk->fragment = kzalloc(sizeof(struct squashfs_fragment_cache) *
++				SQUASHFS_CACHED_FRAGMENTS, GFP_KERNEL);
++	if (msblk->fragment == NULL) {
++		ERROR("Failed to allocate fragment block cache\n");
++		goto failed_mount;
++	}
++
++	for (i = 0; i < SQUASHFS_CACHED_FRAGMENTS; i++) {
++		msblk->fragment[i].block = SQUASHFS_INVALID_BLK;
++	}
++
++	msblk->next_fragment = 0;
++	msblk->unused_frag_blks = SQUASHFS_CACHED_FRAGMENTS;
++
++	/* Allocate and read fragment index table */
++	if (msblk->read_fragment_index_table(s) == 0)
++		goto failed_mount;
++
++	if(sblk->s_major < 3 || sblk->lookup_table_start == SQUASHFS_INVALID_BLK)
++		goto allocate_root;
++
++	/* Allocate and read inode lookup table */
++	if (read_inode_lookup_table(s) == 0)
++		goto failed_mount;
++
++	s->s_op = &squashfs_export_super_ops;
++	s->s_export_op = &squashfs_export_ops;
++
++allocate_root:
++	dpri("alloate_root\n");
++	root = new_inode(s);
++	if ((msblk->read_inode)(root, sblk->root_inode) == 0) {
++		iput(root);
++		goto failed_mount;
++	}
++	insert_inode_hash(root);
++
++	s->s_root = d_alloc_root(root);
++	if (s->s_root == NULL) {
++		ERROR("Root inode create failed\n");
++		iput(root);
++		goto failed_mount;
++	}
++
++	TRACE("Leaving squashfs_fill_super\n");
++	return 0;
++
++failed_mount:
++	kfree(msblk->inode_lookup_table);
++	kfree(msblk->fragment_index);
++	kfree(msblk->fragment);
++	kfree(msblk->uid);
++	vfree(msblk->read_page);
++	kfree(msblk->block_cache);
++	kfree(msblk->fragment_index_2);
++	kfree(s->s_fs_info);
++	s->s_fs_info = NULL;
++ failure:
++	return err;
++}
++
++
++static int squashfs_statfs(struct dentry *dentry, struct kstatfs *buf)
++{
++	struct squashfs_sb_info *msblk = dentry->d_sb->s_fs_info;
++	struct squashfs_super_block *sblk = &msblk->sblk;
++
++	TRACE("Entered squashfs_statfs\n");
++
++	buf->f_type = sblk->s_magic;
++	buf->f_bsize = sblk->block_size;
++	buf->f_blocks = ((sblk->bytes_used - 1) >> sblk->block_log) + 1;
++	buf->f_bfree = buf->f_bavail = 0;
++	buf->f_files = sblk->inodes;
++	buf->f_ffree = 0;
++	buf->f_namelen = SQUASHFS_NAME_LEN;
++
++	return 0;
++}
++
++
++static int squashfs_symlink_readpage(struct file *file, struct page *page)
++{
++	struct inode *inode = page->mapping->host;
++	int index = page->index << PAGE_CACHE_SHIFT, length, bytes, avail_bytes;
++	long long block = SQUASHFS_I(inode)->start_block;
++	int offset = SQUASHFS_I(inode)->offset;
++	void *pageaddr = kmap(page);
++
++	TRACE("Entered squashfs_symlink_readpage, page index %ld, start block "
++				"%llx, offset %x\n", page->index,
++				SQUASHFS_I(inode)->start_block,
++				SQUASHFS_I(inode)->offset);
++
++	for (length = 0; length < index; length += bytes) {
++		bytes = squashfs_get_cached_block(inode->i_sb, NULL, block,
++				offset, PAGE_CACHE_SIZE, &block,
++						  (unsigned int *)&offset);
++		if (bytes == 0) {
++			ERROR("Unable to read symbolic link [%llx:%x]\n", block, offset);
++			goto skip_read;
++		}
++	}
++
++	if (length != index) {
++		ERROR("(squashfs_symlink_readpage) length != index\n");
++		bytes = 0;
++		goto skip_read;
++	}
++
++	avail_bytes = min_t(int, i_size_read(inode) - length, PAGE_CACHE_SIZE);
++
++	bytes = squashfs_get_cached_block(inode->i_sb, pageaddr, block, offset,
++		avail_bytes, &block, (unsigned int *)&offset);
++	if (bytes == 0)
++		ERROR("Unable to read symbolic link [%llx:%x]\n", block, offset);
++
++skip_read:
++	memset(pageaddr + bytes, 0, PAGE_CACHE_SIZE - bytes);
++	kunmap(page);
++	flush_dcache_page(page);
++	SetPageUptodate(page);
++	unlock_page(page);
++
++	return 0;
++}
++
++
++static struct meta_index *locate_meta_index(struct inode *inode, int index, int offset)
++{
++	struct meta_index *meta = NULL;
++	struct squashfs_sb_info *msblk = inode->i_sb->s_fs_info;
++	int i;
++
++	mutex_lock(&msblk->meta_index_mutex);
++
++	TRACE("locate_meta_index: index %d, offset %d\n", index, offset);
++
++	if (msblk->meta_index == NULL)
++		goto not_allocated;
++
++	for (i = 0; i < SQUASHFS_META_NUMBER; i ++) {
++		if (msblk->meta_index[i].inode_number == inode->i_ino &&
++				msblk->meta_index[i].offset >= offset &&
++				msblk->meta_index[i].offset <= index &&
++				msblk->meta_index[i].locked == 0) {
++			TRACE("locate_meta_index: entry %d, offset %d\n", i,
++					msblk->meta_index[i].offset);
++			meta = &msblk->meta_index[i];
++			offset = meta->offset;
++		}
++	}
++
++	if (meta)
++		meta->locked = 1;
++
++not_allocated:
++	mutex_unlock(&msblk->meta_index_mutex);
++
++	return meta;
++}
++
++
++static struct meta_index *empty_meta_index(struct inode *inode, int offset, int skip)
++{
++	struct squashfs_sb_info *msblk = inode->i_sb->s_fs_info;
++	struct meta_index *meta = NULL;
++	int i;
++
++	mutex_lock(&msblk->meta_index_mutex);
++
++	TRACE("empty_meta_index: offset %d, skip %d\n", offset, skip);
++
++	if (msblk->meta_index == NULL) {
++		msblk->meta_index = kmalloc(sizeof(struct meta_index) *
++					SQUASHFS_META_NUMBER, GFP_KERNEL);
++		if (msblk->meta_index == NULL) {
++			ERROR("Failed to allocate meta_index\n");
++			goto failed;
++		}
++		for (i = 0; i < SQUASHFS_META_NUMBER; i++) {
++			msblk->meta_index[i].inode_number = 0;
++			msblk->meta_index[i].locked = 0;
++		}
++		msblk->next_meta_index = 0;
++	}
++
++	for (i = SQUASHFS_META_NUMBER; i &&
++			msblk->meta_index[msblk->next_meta_index].locked; i --)
++		msblk->next_meta_index = (msblk->next_meta_index + 1) %
++			SQUASHFS_META_NUMBER;
++
++	if (i == 0) {
++		TRACE("empty_meta_index: failed!\n");
++		goto failed;
++	}
++
++	TRACE("empty_meta_index: returned meta entry %d, %p\n",
++			msblk->next_meta_index,
++			&msblk->meta_index[msblk->next_meta_index]);
++
++	meta = &msblk->meta_index[msblk->next_meta_index];
++	msblk->next_meta_index = (msblk->next_meta_index + 1) %
++			SQUASHFS_META_NUMBER;
++
++	meta->inode_number = inode->i_ino;
++	meta->offset = offset;
++	meta->skip = skip;
++	meta->entries = 0;
++	meta->locked = 1;
++
++failed:
++	mutex_unlock(&msblk->meta_index_mutex);
++	return meta;
++}
++
++
++static void release_meta_index(struct inode *inode, struct meta_index *meta)
++{
++	meta->locked = 0;
++	smp_mb();
++}
++
++
++static int read_block_index(struct super_block *s, int blocks, char *block_list,
++				long long *start_block, int *offset)
++{
++	struct squashfs_sb_info *msblk = s->s_fs_info;
++	unsigned int *block_listp;
++	int block = 0;
++	
++	if (msblk->swap) {
++		char *sblock_list;
++
++		sblock_list = kmalloc(blocks << 2, GFP_KERNEL);
++		if (unlikely(!sblock_list))
++			goto failure;
++
++		if (!squashfs_get_cached_block(s, sblock_list, *start_block,
++				*offset, blocks << 2, start_block, (unsigned int *)offset)) {
++			ERROR("Fail reading block list [%llx:%x]\n", *start_block, *offset);
++			kfree(sblock_list);
++			goto failure;
++		}
++		SQUASHFS_SWAP_INTS(((unsigned int *)block_list),
++				((unsigned int *)sblock_list), blocks);
++		kfree(sblock_list);
++	} else {
++		if (!squashfs_get_cached_block(s, block_list, *start_block,
++				*offset, blocks << 2, start_block, (unsigned int *)offset)) {
++			ERROR("Fail reading block list [%llx:%x]\n", *start_block, *offset);
++			goto failure;
++		}
++	}
++
++	for (block_listp = (unsigned int *) block_list; blocks;
++				block_listp++, blocks --)
++		block += SQUASHFS_COMPRESSED_SIZE_BLOCK(*block_listp);
++
++	return block;
++
++failure:
++	return -1;
++}
++
++
++#define SIZE 256
++
++static inline int calculate_skip(int blocks) {
++	int skip = (blocks - 1) / ((SQUASHFS_SLOTS * SQUASHFS_META_ENTRIES + 1) * SQUASHFS_META_INDEXES);
++	return skip >= 7 ? 7 : skip + 1;
++}
++
++
++static int get_meta_index(struct inode *inode, int index,
++		long long *index_block, int *index_offset,
++		long long *data_block, char *block_list)
++{
++	struct squashfs_sb_info *msblk = inode->i_sb->s_fs_info;
++	struct squashfs_super_block *sblk = &msblk->sblk;
++	int skip = calculate_skip(i_size_read(inode) >> sblk->block_log);
++	int offset = 0;
++	struct meta_index *meta;
++	struct meta_entry *meta_entry;
++	long long cur_index_block = SQUASHFS_I(inode)->u.s1.block_list_start;
++	int cur_offset = SQUASHFS_I(inode)->offset;
++	long long cur_data_block = SQUASHFS_I(inode)->start_block;
++	int i;
++ 
++	index /= SQUASHFS_META_INDEXES * skip;
++
++	while (offset < index) {
++		meta = locate_meta_index(inode, index, offset + 1);
++
++		if (meta == NULL) {
++			meta = empty_meta_index(inode, offset + 1, skip);
++			if (meta == NULL)
++				goto all_done;
++		} else {
++			if(meta->entries == 0)
++				goto failed;
++			/* XXX */
++			offset = index < meta->offset + meta->entries ? index :
++				meta->offset + meta->entries - 1;
++			/* XXX */
++			meta_entry = &meta->meta_entry[offset - meta->offset];
++			cur_index_block = meta_entry->index_block + sblk->inode_table_start;
++			cur_offset = meta_entry->offset;
++			cur_data_block = meta_entry->data_block;
++			TRACE("get_meta_index: offset %d, meta->offset %d, "
++				"meta->entries %d\n", offset, meta->offset, meta->entries);
++			TRACE("get_meta_index: index_block 0x%llx, offset 0x%x"
++				" data_block 0x%llx\n", cur_index_block,
++				cur_offset, cur_data_block);
++		}
++
++		for (i = meta->offset + meta->entries; i <= index &&
++				i < meta->offset + SQUASHFS_META_ENTRIES; i++) {
++			int blocks = skip * SQUASHFS_META_INDEXES;
++
++			while (blocks) {
++				int block = blocks > (SIZE >> 2) ? (SIZE >> 2) : blocks;
++				int res = read_block_index(inode->i_sb, block, block_list,
++					&cur_index_block, &cur_offset);
++
++				if (res == -1)
++					goto failed;
++
++				cur_data_block += res;
++				blocks -= block;
++			}
++
++			meta_entry = &meta->meta_entry[i - meta->offset];
++			meta_entry->index_block = cur_index_block - sblk->inode_table_start;
++			meta_entry->offset = cur_offset;
++			meta_entry->data_block = cur_data_block;
++			meta->entries ++;
++			offset ++;
++		}
++
++		TRACE("get_meta_index: meta->offset %d, meta->entries %d\n",
++				meta->offset, meta->entries);
++
++		release_meta_index(inode, meta);
++	}
++
++all_done:
++	*index_block = cur_index_block;
++	*index_offset = cur_offset;
++	*data_block = cur_data_block;
++
++	return offset * SQUASHFS_META_INDEXES * skip;
++
++failed:
++	release_meta_index(inode, meta);
++	return -1;
++}
++
++
++static long long read_blocklist(struct inode *inode, int index,
++				int readahead_blks, char *block_list,
++				unsigned short **block_p, unsigned int *bsize)
++{
++	long long block_ptr;
++	int offset;
++	long long block;
++	int res = get_meta_index(inode, index, &block_ptr, &offset, &block,
++		block_list);
++
++	TRACE("read_blocklist: res %d, index %d, block_ptr 0x%llx, offset"
++		       " 0x%x, block 0x%llx\n", res, index, block_ptr, offset, block);
++
++	if(res == -1)
++		goto failure;
++
++	index -= res;
++
++	while (index) {
++		int blocks = index > (SIZE >> 2) ? (SIZE >> 2) : index;
++		int res = read_block_index(inode->i_sb, blocks, block_list,
++			&block_ptr, &offset);
++		if (res == -1)
++			goto failure;
++		block += res;
++		index -= blocks;
++	}
++
++	if (read_block_index(inode->i_sb, 1, block_list, &block_ptr, &offset) == -1)
++		goto failure;
++	*bsize = *((unsigned int *) block_list);
++
++	return block;
++
++failure:
++	return 0;
++}
++
++
++static int squashfs_readpage(struct file *file, struct page *page)
++{
++	struct inode *inode = page->mapping->host;
++	struct squashfs_sb_info *msblk = inode->i_sb->s_fs_info;
++	struct squashfs_super_block *sblk = &msblk->sblk;
++	unsigned char *block_list = NULL;
++	long long block;
++	unsigned int bsize, i;
++	int bytes;
++	int index = page->index >> (sblk->block_log - PAGE_CACHE_SHIFT);
++ 	void *pageaddr;
++	struct squashfs_fragment_cache *fragment = NULL;
++	char *data_ptr = msblk->read_page;
++	
++	int mask = (1 << (sblk->block_log - PAGE_CACHE_SHIFT)) - 1;
++	int start_index = page->index & ~mask;
++	int end_index = start_index | mask;
++	int file_end = i_size_read(inode) >> sblk->block_log;
++	int sparse = 0;
++
++	TRACE("Entered squashfs_readpage, page index %lx, start block %llx\n",
++					page->index, SQUASHFS_I(inode)->start_block);
++
++	if (page->index >= ((i_size_read(inode) + PAGE_CACHE_SIZE - 1) >>
++					PAGE_CACHE_SHIFT))
++		goto out;
++
++	if (SQUASHFS_I(inode)->u.s1.fragment_start_block == SQUASHFS_INVALID_BLK
++					|| index < file_end) {
++		block_list = kmalloc(SIZE, GFP_KERNEL);
++		if (block_list == NULL) {
++			ERROR("Failed to allocate block_list\n");
++			goto error_out;
++		}
++
++		block = (msblk->read_blocklist)(inode, index, 1, block_list, NULL, &bsize);
++		if (block == 0)
++			goto error_out;
++
++		if (bsize == 0) { /* hole */
++			bytes = index == file_end ?
++				(i_size_read(inode) & (sblk->block_size - 1)) : sblk->block_size;
++			sparse = 1;
++		} else {
++			mutex_lock(&msblk->read_page_mutex);
++		
++			bytes = squashfs_read_data(inode->i_sb, msblk->read_page, block,
++				bsize, NULL, sblk->block_size);
++
++			if (bytes == 0) {
++				ERROR("Unable to read page, block %llx, size %x\n", block, bsize);
++				mutex_unlock(&msblk->read_page_mutex);
++				goto error_out;
++			}
++		}
++	} else {
++		fragment = get_cached_fragment(inode->i_sb,
++					SQUASHFS_I(inode)-> u.s1.fragment_start_block,
++					SQUASHFS_I(inode)->u.s1.fragment_size);
++
++		if (fragment == NULL) {
++			ERROR("Unable to read page, block %llx, size %x\n",
++					SQUASHFS_I(inode)->u.s1.fragment_start_block,
++					(int) SQUASHFS_I(inode)->u.s1.fragment_size);
++			goto error_out;
++		}
++		bytes = i_size_read(inode) & (sblk->block_size - 1);
++		data_ptr = fragment->data + SQUASHFS_I(inode)->u.s1.fragment_offset;
++	}
++
++	for (i = start_index; i <= end_index && bytes > 0; i++,
++						bytes -= PAGE_CACHE_SIZE, data_ptr += PAGE_CACHE_SIZE) {
++		struct page *push_page;
++		int avail = sparse ? 0 : min_t(unsigned int, bytes, PAGE_CACHE_SIZE);
++
++		TRACE("bytes %d, i %d, available_bytes %d\n", bytes, i, avail);
++
++		push_page = (i == page->index) ? page :
++			grab_cache_page_nowait(page->mapping, i);
++
++		if (!push_page)
++			continue;
++
++		if (PageUptodate(push_page))
++			goto skip_page;
++
++ 		pageaddr = kmap_atomic(push_page, KM_USER0);
++		memcpy(pageaddr, data_ptr, avail);
++		memset(pageaddr + avail, 0, PAGE_CACHE_SIZE - avail);
++		kunmap_atomic(pageaddr, KM_USER0);
++		flush_dcache_page(push_page);
++		SetPageUptodate(push_page);
++skip_page:
++		unlock_page(push_page);
++		if(i != page->index)
++			page_cache_release(push_page);
++	}
++
++	if (SQUASHFS_I(inode)->u.s1.fragment_start_block == SQUASHFS_INVALID_BLK
++					|| index < file_end) {
++		if (!sparse)
++			mutex_unlock(&msblk->read_page_mutex);
++		kfree(block_list);
++	} else
++		release_cached_fragment(msblk, fragment);
++
++	return 0;
++
++error_out:
++	SetPageError(page);
++out:
++	pageaddr = kmap_atomic(page, KM_USER0);
++	memset(pageaddr, 0, PAGE_CACHE_SIZE);
++	kunmap_atomic(pageaddr, KM_USER0);
++	flush_dcache_page(page);
++	if (!PageError(page))
++		SetPageUptodate(page);
++	unlock_page(page);
++
++	kfree(block_list);
++	return 0;
++}
++
++
++static int get_dir_index_using_offset(struct super_block *s,
++				long long *next_block, unsigned int *next_offset,
++				long long index_start, unsigned int index_offset, int i_count,
++				long long f_pos)
++{
++	struct squashfs_sb_info *msblk = s->s_fs_info;
++	struct squashfs_super_block *sblk = &msblk->sblk;
++	int i, length = 0;
++	struct squashfs_dir_index index;
++
++	TRACE("Entered get_dir_index_using_offset, i_count %d, f_pos %d\n",
++					i_count, (unsigned int) f_pos);
++
++	f_pos =- 3;
++	if (f_pos == 0)
++		goto finish;
++
++	for (i = 0; i < i_count; i++) {
++		if (msblk->swap) {
++			struct squashfs_dir_index sindex;
++			squashfs_get_cached_block(s, &sindex, index_start, index_offset,
++					sizeof(sindex), &index_start, &index_offset);
++			SQUASHFS_SWAP_DIR_INDEX(&index, &sindex);
++		} else
++			squashfs_get_cached_block(s, &index, index_start, index_offset,
++					sizeof(index), &index_start, &index_offset);
++
++		if (index.index > f_pos)
++			break;
++
++		squashfs_get_cached_block(s, NULL, index_start, index_offset,
++					index.size + 1, &index_start, &index_offset);
++
++		length = index.index;
++		*next_block = index.start_block + sblk->directory_table_start;
++	}
++
++	*next_offset = (length + *next_offset) % SQUASHFS_METADATA_SIZE;
++
++finish:
++	return length + 3;
++}
++
++
++static int get_dir_index_using_name(struct super_block *s,
++				long long *next_block, unsigned int *next_offset,
++				long long index_start, unsigned int index_offset, int i_count,
++				const char *name, int size)
++{
++	struct squashfs_sb_info *msblk = s->s_fs_info;
++	struct squashfs_super_block *sblk = &msblk->sblk;
++	int i, length = 0;
++	struct squashfs_dir_index *index;
++	char *str;
++
++	TRACE("Entered get_dir_index_using_name, i_count %d\n", i_count);
++
++	str = kmalloc(sizeof(struct squashfs_dir_index) +
++		(SQUASHFS_NAME_LEN + 1) * 2, GFP_KERNEL);
++	if (str == NULL) {
++		ERROR("Failed to allocate squashfs_dir_index\n");
++		goto failure;
++	}
++
++	index = (struct squashfs_dir_index *) (str + SQUASHFS_NAME_LEN + 1);
++	strncpy(str, name, size);
++	str[size] = '\0';
++
++	for (i = 0; i < i_count; i++) {
++		if (msblk->swap) {
++			struct squashfs_dir_index sindex;
++			squashfs_get_cached_block(s, &sindex, index_start, index_offset,
++				sizeof(sindex), &index_start, &index_offset);
++			SQUASHFS_SWAP_DIR_INDEX(index, &sindex);
++		} else
++			squashfs_get_cached_block(s, index, index_start, index_offset,
++				sizeof(struct squashfs_dir_index), &index_start, &index_offset);
++
++		squashfs_get_cached_block(s, index->name, index_start, index_offset,
++					index->size + 1, &index_start, &index_offset);
++
++		index->name[index->size + 1] = '\0';
++
++		if (strcmp(index->name, str) > 0)
++			break;
++
++		length = index->index;
++		*next_block = index->start_block + sblk->directory_table_start;
++	}
++
++	*next_offset = (length + *next_offset) % SQUASHFS_METADATA_SIZE;
++	kfree(str);
++
++failure:
++	return length + 3;
++}
++
++		
++static int squashfs_readdir(struct file *file, void *dirent, filldir_t filldir)
++{
++	struct inode *i = file->f_dentry->d_inode;
++	struct squashfs_sb_info *msblk = i->i_sb->s_fs_info;
++	struct squashfs_super_block *sblk = &msblk->sblk;
++	long long next_block = SQUASHFS_I(i)->start_block +
++		sblk->directory_table_start;
++	int next_offset = SQUASHFS_I(i)->offset, length = 0, dir_count;
++	struct squashfs_dir_header dirh;
++	struct squashfs_dir_entry *dire;
++
++	TRACE("Entered squashfs_readdir [%llx:%x]\n", next_block, next_offset);
++
++	dire = kmalloc(sizeof(struct squashfs_dir_entry) +
++		SQUASHFS_NAME_LEN + 1, GFP_KERNEL);
++	if (dire == NULL) {
++		ERROR("Failed to allocate squashfs_dir_entry\n");
++		goto finish;
++	}
++
++	while(file->f_pos < 3) {
++		char *name;
++		int size, i_ino;
++
++		if(file->f_pos == 0) {
++			name = ".";
++			size = 1;
++			i_ino = i->i_ino;
++		} else {
++			name = "..";
++			size = 2;
++			i_ino = SQUASHFS_I(i)->u.s2.parent_inode;
++		}
++		TRACE("Calling filldir(%x, %s, %d, %d, %d, %d)\n",
++				(unsigned int) dirent, name, size, (int)
++				file->f_pos, i_ino, squashfs_filetype_table[1]);
++
++		if (filldir(dirent, name, size, file->f_pos, i_ino,
++				squashfs_filetype_table[1]) < 0) {
++				TRACE("Filldir returned less than 0\n");
++			goto finish;
++		}
++		file->f_pos += size;
++	}
++
++	length = get_dir_index_using_offset(i->i_sb, &next_block,
++					    (unsigned int *)&next_offset,
++				SQUASHFS_I(i)->u.s2.directory_index_start,
++				SQUASHFS_I(i)->u.s2.directory_index_offset,
++				SQUASHFS_I(i)->u.s2.directory_index_count, file->f_pos);
++
++	while (length < i_size_read(i)) {
++		/* read directory header */
++		if (msblk->swap) {
++			struct squashfs_dir_header sdirh;
++			
++			if (!squashfs_get_cached_block(i->i_sb, &sdirh, next_block,
++					 next_offset, sizeof(sdirh), &next_block,
++						       (unsigned int *)&next_offset))
++				goto failed_read;
++
++			length += sizeof(sdirh);
++			SQUASHFS_SWAP_DIR_HEADER(&dirh, &sdirh);
++		} else {
++			if (!squashfs_get_cached_block(i->i_sb, &dirh, next_block,
++					next_offset, sizeof(dirh), &next_block,
++						       (unsigned int *)&next_offset))
++				goto failed_read;
++
++			length += sizeof(dirh);
++		}
++
++		dir_count = dirh.count + 1;
++		while (dir_count--) {
++			if (msblk->swap) {
++				struct squashfs_dir_entry sdire;
++				if (!squashfs_get_cached_block(i->i_sb, &sdire, next_block,
++						next_offset, sizeof(sdire), &next_block,
++							       (unsigned int *)&next_offset))
++					goto failed_read;
++				
++				length += sizeof(sdire);
++				SQUASHFS_SWAP_DIR_ENTRY(dire, &sdire);
++			} else {
++				if (!squashfs_get_cached_block(i->i_sb, dire, next_block,
++						next_offset, sizeof(*dire), &next_block,
++							       (unsigned int *)&next_offset))
++					goto failed_read;
++
++				length += sizeof(*dire);
++			}
++
++			if (!squashfs_get_cached_block(i->i_sb, dire->name, next_block,
++						next_offset, dire->size + 1, &next_block,
++						       (unsigned int *)&next_offset))
++				goto failed_read;
++
++			length += dire->size + 1;
++
++			if (file->f_pos >= length)
++				continue;
++
++			dire->name[dire->size + 1] = '\0';
++
++			TRACE("Calling filldir(%x, %s, %d, %d, %x:%x, %d, %d)\n",
++					(unsigned int) dirent, dire->name, dire->size + 1,
++					(int) file->f_pos, dirh.start_block, dire->offset,
++					dirh.inode_number + dire->inode_number,
++					squashfs_filetype_table[dire->type]);
++
++			if (filldir(dirent, dire->name, dire->size + 1, file->f_pos,
++					dirh.inode_number + dire->inode_number,
++					squashfs_filetype_table[dire->type]) < 0) {
++				TRACE("Filldir returned less than 0\n");
++				goto finish;
++			}
++			file->f_pos = length;
++		}
++	}
++
++finish:
++	kfree(dire);
++	return 0;
++
++failed_read:
++	ERROR("Unable to read directory block [%llx:%x]\n", next_block,
++		next_offset);
++	kfree(dire);
++	return 0;
++}
++
++
++static struct dentry *squashfs_lookup(struct inode *i, struct dentry *dentry,
++				struct nameidata *nd)
++{
++	const unsigned char *name = dentry->d_name.name;
++	int len = dentry->d_name.len;
++	struct inode *inode = NULL;
++	struct squashfs_sb_info *msblk = i->i_sb->s_fs_info;
++	struct squashfs_super_block *sblk = &msblk->sblk;
++	long long next_block = SQUASHFS_I(i)->start_block +
++				sblk->directory_table_start;
++	int next_offset = SQUASHFS_I(i)->offset, length = 0, dir_count;
++	struct squashfs_dir_header dirh;
++	struct squashfs_dir_entry *dire;
++
++	TRACE("Entered squashfs_lookup [%llx:%x]\n", next_block, next_offset);
++
++	dire = kmalloc(sizeof(struct squashfs_dir_entry) +
++		SQUASHFS_NAME_LEN + 1, GFP_KERNEL);
++	if (dire == NULL) {
++		ERROR("Failed to allocate squashfs_dir_entry\n");
++		goto exit_lookup;
++	}
++
++	if (len > SQUASHFS_NAME_LEN)
++		goto exit_lookup;
++
++	length = get_dir_index_using_name(i->i_sb, &next_block, (unsigned int *)&next_offset,
++				SQUASHFS_I(i)->u.s2.directory_index_start,
++				SQUASHFS_I(i)->u.s2.directory_index_offset,
++				SQUASHFS_I(i)->u.s2.directory_index_count, name, len);
++
++	while (length < i_size_read(i)) {
++		/* read directory header */
++		if (msblk->swap) {
++			struct squashfs_dir_header sdirh;
++			if (!squashfs_get_cached_block(i->i_sb, &sdirh, next_block,
++					 next_offset, sizeof(sdirh), &next_block,
++						       (unsigned int *)&next_offset))
++				goto failed_read;
++
++			length += sizeof(sdirh);
++			SQUASHFS_SWAP_DIR_HEADER(&dirh, &sdirh);
++		} else {
++			if (!squashfs_get_cached_block(i->i_sb, &dirh, next_block,
++					next_offset, sizeof(dirh), &next_block,
++						       (unsigned int *)&next_offset))
++				goto failed_read;
++
++			length += sizeof(dirh);
++		}
++
++		dir_count = dirh.count + 1;
++		while (dir_count--) {
++			if (msblk->swap) {
++				struct squashfs_dir_entry sdire;
++				if (!squashfs_get_cached_block(i->i_sb, &sdire, next_block,
++						next_offset, sizeof(sdire), &next_block,
++							       (unsigned int *)&next_offset))
++					goto failed_read;
++				
++				length += sizeof(sdire);
++				SQUASHFS_SWAP_DIR_ENTRY(dire, &sdire);
++			} else {
++				if (!squashfs_get_cached_block(i->i_sb, dire, next_block,
++						next_offset, sizeof(*dire), &next_block,
++							       (unsigned int *)&next_offset))
++					goto failed_read;
++
++				length += sizeof(*dire);
++			}
++
++			if (!squashfs_get_cached_block(i->i_sb, dire->name, next_block,
++					next_offset, dire->size + 1, &next_block,
++						       (unsigned int *)&next_offset))
++				goto failed_read;
++
++			length += dire->size + 1;
++
++			if (name[0] < dire->name[0])
++				goto exit_lookup;
++
++			if ((len == dire->size + 1) && !strncmp(name, dire->name, len)) {
++				squashfs_inode_t ino = SQUASHFS_MKINODE(dirh.start_block,
++								dire->offset);
++
++				TRACE("calling squashfs_iget for directory entry %s, inode"
++					"  %x:%x, %d\n", name, dirh.start_block, dire->offset,
++					dirh.inode_number + dire->inode_number);
++
++				inode = squashfs_iget(i->i_sb, ino, dirh.inode_number + dire->inode_number);
++
++				goto exit_lookup;
++			}
++		}
++	}
++
++exit_lookup:
++	kfree(dire);
++	if (inode)
++		return d_splice_alias(inode, dentry);
++	d_add(dentry, inode);
++	return ERR_PTR(0);
++
++failed_read:
++	ERROR("Unable to read directory block [%llx:%x]\n", next_block,
++		next_offset);
++	goto exit_lookup;
++}
++
++
++static int squashfs_remount(struct super_block *s, int *flags, char *data)
++{
++	*flags |= MS_RDONLY;
++	return 0;
++}
++
++
++static void squashfs_put_super(struct super_block *s)
++{
++	int i;
++
++	if (s->s_fs_info) {
++		struct squashfs_sb_info *sbi = s->s_fs_info;
++		if (sbi->block_cache)
++			for (i = 0; i < squashfs_cached_blks; i++)
++				if (sbi->block_cache[i].block != SQUASHFS_INVALID_BLK)
++					vfree(sbi->block_cache[i].data);
++		if (sbi->fragment)
++			for (i = 0; i < SQUASHFS_CACHED_FRAGMENTS; i++) 
++				vfree(sbi->fragment[i].data);
++		kfree(sbi->fragment);
++		kfree(sbi->block_cache);
++		vfree(sbi->read_page);
++		kfree(sbi->uid);
++		kfree(sbi->fragment_index);
++		kfree(sbi->fragment_index_2);
++		kfree(sbi->meta_index);
++		kfree(s->s_fs_info);
++		s->s_fs_info = NULL;
++	}
++}
++
++
++static int squashfs_get_sb(struct file_system_type *fs_type, int flags,
++				const char *dev_name, void *data, struct vfsmount *mnt)
++{
++	return get_sb_bdev(fs_type, flags, dev_name, data, squashfs_fill_super,
++				mnt);
++}
++
++static void free_sqlzma(void)
++{
++	int cpu;
++	struct sqlzma *p;
++
++	for_each_online_cpu(cpu) {
++		p = per_cpu(sqlzma, cpu);
++		if (p) {
++#ifdef KeepPreemptive
++			mutex_destroy(&p->mtx);
++#endif
++			sqlzma_fin(&p->un);
++			kfree(p);
++		}
++	}
++}
++
++static int __init init_squashfs_fs(void)
++{
++	struct sqlzma *p;
++	int cpu;
++	int err = init_inodecache();
++	if (err)
++		goto out;
++
++	for_each_online_cpu(cpu) {
++		dpri("%d: %p\n", cpu, per_cpu(sqlzma, cpu));
++		err = -ENOMEM;
++		p = kmalloc(sizeof(struct sqlzma), GFP_KERNEL);
++		if (p) {
++#ifdef KeepPreemptive
++			mutex_init(&p->mtx);
++#endif
++			err = sqlzma_init(&p->un, 1, 0);
++			if (unlikely(err)) {
++				ERROR("Failed to intialize uncompress workspace\n");
++				break;
++			}
++			per_cpu(sqlzma, cpu) = p;
++			err = 0;
++		} else
++			break;
++	}
++	if (unlikely(err)) {
++		free_sqlzma();
++		goto out;
++	}
++
++	printk(KERN_INFO "squashfs: version 3.3 (2007/10/31) "
++		"Phillip Lougher\n"
++		"squashfs: LZMA suppport for slax.org by jro\n");
++
++	err = register_filesystem(&squashfs_fs_type);
++	if (err) {
++		free_sqlzma();
++		destroy_inodecache();
++	}
++
++out:
++	return err;
++}
++
++
++static void __exit exit_squashfs_fs(void)
++{
++	unregister_filesystem(&squashfs_fs_type);
++	free_sqlzma();
++	destroy_inodecache();
++}
++
++
++static struct kmem_cache * squashfs_inode_cachep;
++
++
++static struct inode *squashfs_alloc_inode(struct super_block *sb)
++{
++	struct squashfs_inode_info *ei;
++	ei = kmem_cache_alloc(squashfs_inode_cachep, GFP_KERNEL);
++	return ei ? &ei->vfs_inode : NULL;
++}
++
++
++static void squashfs_destroy_inode(struct inode *inode)
++{
++	kmem_cache_free(squashfs_inode_cachep, SQUASHFS_I(inode));
++}
++
++
++static void init_once(struct kmem_cache *cachep, void *foo)
++{
++	struct squashfs_inode_info *ei = foo;
++
++	inode_init_once(&ei->vfs_inode);
++}
++ 
++
++static int __init init_inodecache(void)
++{
++	squashfs_inode_cachep = kmem_cache_create("squashfs_inode_cache",
++	    sizeof(struct squashfs_inode_info), 0,
++		SLAB_HWCACHE_ALIGN|SLAB_RECLAIM_ACCOUNT, init_once);
++	if (squashfs_inode_cachep == NULL)
++		return -ENOMEM;
++	return 0;
++}
++
++
++static void destroy_inodecache(void)
++{
++	kmem_cache_destroy(squashfs_inode_cachep);
++}
++
++
++module_init(init_squashfs_fs);
++module_exit(exit_squashfs_fs);
++MODULE_DESCRIPTION("squashfs 3.2-r2-CVS, a compressed read-only filesystem, and LZMA suppport for slax.org");
++MODULE_AUTHOR("Phillip Lougher <phillip@lougher.demon.co.uk>, and LZMA suppport for slax.org by jro");
++MODULE_LICENSE("GPL");
+diff -urN linux-2.6.23/fs/squashfs/module.c linux-2.6.23.sqlzma-ng/fs/squashfs/module.c
+--- linux-2.6.23/fs/squashfs/module.c	1969-12-31 19:00:00.000000000 -0500
++++ linux-2.6.23.sqlzma-ng/fs/squashfs/module.c	2007-11-13 19:51:33.000000000 -0500
+@@ -0,0 +1,36 @@
++
++/*
++ * Copyright (C) 2006-2007 Junjiro Okajima
++ * Copyright (C) 2006-2007 Tomas Matejicek, slax.org
++ *
++ * LICENSE follows the described one in lzma.txt.
++ */
++
++/* $Id: module.c,v 1.1 2007/11/05 05:43:36 jro Exp $ */
++
++#include <linux/init.h>
++#include <linux/module.h>
++
++#include "LzmaDecode.c"
++
++EXPORT_SYMBOL(LzmaDecodeProperties);
++EXPORT_SYMBOL(LzmaDecode);
++
++#if 0
++static int __init unlzma_init(void)
++{
++	return 0;
++}
++
++static void __exit unlzma_exit(void)
++{
++}
++
++module_init(unlzma_init);
++module_exit(unlzma_exit);
++#endif
++
++MODULE_LICENSE("GPL");
++MODULE_VERSION("$Id: module.c,v 1.1 2007/11/05 05:43:36 jro Exp $");
++MODULE_DESCRIPTION("LZMA uncompress. "
++		   "A tiny wrapper for LzmaDecode.c in LZMA SDK from www.7-zip.org.");
+diff -urN linux-2.6.23/fs/squashfs/sqlzma.h linux-2.6.23.sqlzma-ng/fs/squashfs/sqlzma.h
+--- linux-2.6.23/fs/squashfs/sqlzma.h	1969-12-31 19:00:00.000000000 -0500
++++ linux-2.6.23.sqlzma-ng/fs/squashfs/sqlzma.h	2007-11-13 19:09:21.000000000 -0500
+@@ -0,0 +1,83 @@
++/*
++ * Copyright (C) 2006 Junjiro Okajima
++ * Copyright (C) 2006 Tomas Matejicek, slax.org
++ *
++ * LICENSE follows the described one in lzma.
++ */
++
++/* $Id: sqlzma.h,v 1.15 2007/11/09 14:42:12 jro Exp $ */
++
++#ifndef __sqlzma_h__
++#define __sqlzma_h__
++
++#ifndef __KERNEL__
++#include <stdlib.h>
++#include <string.h>
++#include <zlib.h>
++#ifdef _REENTRANT
++#include <pthread.h>
++#endif
++#else
++#include <linux/zlib.h>
++#endif
++#define _7ZIP_BYTE_DEFINED
++
++/*
++ * detect the compression method automatically by the first byte of compressed
++ * data.
++ * according to rfc1950, the first byte of zlib compression must be 0x?8.
++ */
++#define is_lzma(c)	(c == 0x5d)
++
++/* ---------------------------------------------------------------------- */
++
++#ifdef __cplusplus
++extern "C" {
++#endif
++
++#ifndef __KERNEL__
++/* for mksquashfs only */
++struct sqlzma_opts {
++	unsigned int	try_lzma:1;
++	unsigned int 	dicsize;
++};
++int sqlzma_cm(struct sqlzma_opts *opts, z_stream *stream, Bytef *next_in, uInt
++	      avail_in, Bytef *next_out, uInt avail_out);
++#endif
++
++/* ---------------------------------------------------------------------- */
++/*
++ * Three patterns for sqlzma uncompression. very dirty code.
++ * - kernel space (squashfs kernel module)
++ * - user space with pthread (mksquashfs)
++ * - user space without pthread (unsquashfs)
++ */
++
++struct sized_buf {
++	unsigned int	sz;
++	unsigned char	*buf;
++};
++
++enum {SQUN_PROB, SQUN_RESULT, SQUN_LAST};
++struct sqlzma_un {
++	int			un_lzma;
++	struct sized_buf	un_a[SQUN_LAST];
++	unsigned char           un_prob[31960]; /* unlzma 64KB - 1MB */
++	z_stream		un_stream;
++#define un_cmbuf	un_stream.next_in
++#define un_cmlen	un_stream.avail_in
++#define un_resbuf	un_stream.next_out
++#define un_resroom	un_stream.avail_out
++#define un_reslen	un_stream.total_out
++};
++
++int sqlzma_init(struct sqlzma_un *un, int do_lzma, unsigned int res_sz);
++int sqlzma_un(struct sqlzma_un *un, struct sized_buf *src, struct sized_buf *dst);
++void sqlzma_fin(struct sqlzma_un *un);
++
++/* ---------------------------------------------------------------------- */
++
++#ifdef __cplusplus
++};
++#endif
++#endif
+diff -urN linux-2.6.23/fs/squashfs/squashfs.h linux-2.6.23.sqlzma-ng/fs/squashfs/squashfs.h
+--- linux-2.6.23/fs/squashfs/squashfs.h	1969-12-31 19:00:00.000000000 -0500
++++ linux-2.6.23.sqlzma-ng/fs/squashfs/squashfs.h	2007-11-13 18:58:41.000000000 -0500
+@@ -0,0 +1,86 @@
++/*
++ * Squashfs - a compressed read only filesystem for Linux
++ *
++ * Copyright (c) 2002, 2003, 2004, 2005, 2006, 2007
++ * Phillip Lougher <phillip@lougher.demon.co.uk>
++ *
++ * This program is free software; you can redistribute it and/or
++ * modify it under the terms of the GNU General Public License
++ * as published by the Free Software Foundation; either version 2,
++ * or (at your option) any later version.
++ *
++ * This program is distributed in the hope that it will be useful,
++ * but WITHOUT ANY WARRANTY; without even the implied warranty of
++ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
++ * GNU General Public License for more details.
++ *
++ * You should have received a copy of the GNU General Public License
++ * along with this program; if not, write to the Free Software
++ * Foundation, 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
++ *
++ * squashfs.h
++ */
++
++#ifdef CONFIG_SQUASHFS_1_0_COMPATIBILITY
++#undef CONFIG_SQUASHFS_1_0_COMPATIBILITY
++#endif
++
++#ifdef SQUASHFS_TRACE
++#define TRACE(s, args...)	printk(KERN_NOTICE "SQUASHFS: "s, ## args)
++#else
++#define TRACE(s, args...)	{}
++#endif
++
++#define ERROR(s, args...)	printk(KERN_ERR "SQUASHFS error: "s, ## args)
++
++#define SERROR(s, args...)	do { \
++				if (!silent) \
++				printk(KERN_ERR "SQUASHFS error: "s, ## args);\
++				} while(0)
++
++#define WARNING(s, args...)	printk(KERN_WARNING "SQUASHFS: "s, ## args)
++
++static inline struct squashfs_inode_info *SQUASHFS_I(struct inode *inode)
++{
++	return list_entry(inode, struct squashfs_inode_info, vfs_inode);
++}
++
++#if defined(CONFIG_SQUASHFS_1_0_COMPATIBILITY ) || defined(CONFIG_SQUASHFS_2_0_COMPATIBILITY)
++#define SQSH_EXTERN
++extern unsigned int squashfs_read_data(struct super_block *s, char *buffer,
++				long long index, unsigned int length,
++				long long *next_index, int srclength);
++extern int squashfs_get_cached_block(struct super_block *s, void *buffer,
++				long long block, unsigned int offset,
++				int length, long long *next_block,
++				unsigned int *next_offset);
++extern void release_cached_fragment(struct squashfs_sb_info *msblk, struct
++					squashfs_fragment_cache *fragment);
++extern struct squashfs_fragment_cache *get_cached_fragment(struct super_block
++					*s, long long start_block,
++					int length);
++extern struct inode *squashfs_iget(struct super_block *s, squashfs_inode_t inode, unsigned int inode_number);
++extern const struct address_space_operations squashfs_symlink_aops;
++extern const struct address_space_operations squashfs_aops;
++extern struct inode_operations squashfs_dir_inode_ops;
++#else
++#define SQSH_EXTERN static
++#endif
++
++#ifdef CONFIG_SQUASHFS_1_0_COMPATIBILITY
++extern int squashfs_1_0_supported(struct squashfs_sb_info *msblk);
++#else
++static inline int squashfs_1_0_supported(struct squashfs_sb_info *msblk)
++{
++	return 0;
++}
++#endif
++
++#ifdef CONFIG_SQUASHFS_2_0_COMPATIBILITY
++extern int squashfs_2_0_supported(struct squashfs_sb_info *msblk);
++#else
++static inline int squashfs_2_0_supported(struct squashfs_sb_info *msblk)
++{
++	return 0;
++}
++#endif
+diff -urN linux-2.6.23/fs/squashfs/squashfs2_0.c linux-2.6.23.sqlzma-ng/fs/squashfs/squashfs2_0.c
+--- linux-2.6.23/fs/squashfs/squashfs2_0.c	1969-12-31 19:00:00.000000000 -0500
++++ linux-2.6.23.sqlzma-ng/fs/squashfs/squashfs2_0.c	2007-11-13 18:58:41.000000000 -0500
+@@ -0,0 +1,740 @@
++/*
++ * Squashfs - a compressed read only filesystem for Linux
++ *
++ * Copyright (c) 2002, 2003, 2004, 2005, 2006, 2007
++ * Phillip Lougher <phillip@lougher.demon.co.uk>
++ *
++ * This program is free software; you can redistribute it and/or
++ * modify it under the terms of the GNU General Public License
++ * as published by the Free Software Foundation; either version 2,
++ * or (at your option) any later version.
++ *
++ * This program is distributed in the hope that it will be useful,
++ * but WITHOUT ANY WARRANTY; without even the implied warranty of
++ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
++ * GNU General Public License for more details.
++ *
++ * You should have received a copy of the GNU General Public License
++ * along with this program; if not, write to the Free Software
++ * Foundation, 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
++ *
++ * squashfs2_0.c
++ */
++
++#include <linux/squashfs_fs.h>
++#include <linux/module.h>
++#include <linux/zlib.h>
++#include <linux/fs.h>
++#include <linux/squashfs_fs_sb.h>
++#include <linux/squashfs_fs_i.h>
++
++#include "squashfs.h"
++static int squashfs_readdir_2(struct file *file, void *dirent, filldir_t filldir);
++static struct dentry *squashfs_lookup_2(struct inode *, struct dentry *,
++				struct nameidata *);
++
++static struct file_operations squashfs_dir_ops_2 = {
++	.read = generic_read_dir,
++	.readdir = squashfs_readdir_2
++};
++
++static struct inode_operations squashfs_dir_inode_ops_2 = {
++	.lookup = squashfs_lookup_2
++};
++
++static unsigned char squashfs_filetype_table[] = {
++	DT_UNKNOWN, DT_DIR, DT_REG, DT_LNK, DT_BLK, DT_CHR, DT_FIFO, DT_SOCK
++};
++
++static int read_fragment_index_table_2(struct super_block *s)
++{
++	struct squashfs_sb_info *msblk = s->s_fs_info;
++	struct squashfs_super_block *sblk = &msblk->sblk;
++
++	if (!(msblk->fragment_index_2 = kmalloc(SQUASHFS_FRAGMENT_INDEX_BYTES_2
++					(sblk->fragments), GFP_KERNEL))) {
++		ERROR("Failed to allocate uid/gid table\n");
++		return 0;
++	}
++   
++	if (SQUASHFS_FRAGMENT_INDEX_BYTES_2(sblk->fragments) &&
++					!squashfs_read_data(s, (char *)
++					msblk->fragment_index_2,
++					sblk->fragment_table_start,
++					SQUASHFS_FRAGMENT_INDEX_BYTES_2
++					(sblk->fragments) |
++					SQUASHFS_COMPRESSED_BIT_BLOCK, NULL, SQUASHFS_FRAGMENT_INDEX_BYTES_2(sblk->fragments))) {
++		ERROR("unable to read fragment index table\n");
++		return 0;
++	}
++
++	if (msblk->swap) {
++		int i;
++		unsigned int fragment;
++
++		for (i = 0; i < SQUASHFS_FRAGMENT_INDEXES_2(sblk->fragments);
++									i++) {
++			SQUASHFS_SWAP_FRAGMENT_INDEXES_2((&fragment),
++						&msblk->fragment_index_2[i], 1);
++			msblk->fragment_index_2[i] = fragment;
++		}
++	}
++
++	return 1;
++}
++
++
++static int get_fragment_location_2(struct super_block *s, unsigned int fragment,
++				long long *fragment_start_block,
++				unsigned int *fragment_size)
++{
++	struct squashfs_sb_info *msblk = s->s_fs_info;
++	long long start_block =
++		msblk->fragment_index_2[SQUASHFS_FRAGMENT_INDEX_2(fragment)];
++	int offset = SQUASHFS_FRAGMENT_INDEX_OFFSET_2(fragment);
++	struct squashfs_fragment_entry_2 fragment_entry;
++
++	if (msblk->swap) {
++		struct squashfs_fragment_entry_2 sfragment_entry;
++
++		if (!squashfs_get_cached_block(s, (char *) &sfragment_entry,
++					start_block, offset,
++					sizeof(sfragment_entry), &start_block,
++					&offset))
++			goto out;
++		SQUASHFS_SWAP_FRAGMENT_ENTRY_2(&fragment_entry, &sfragment_entry);
++	} else
++		if (!squashfs_get_cached_block(s, (char *) &fragment_entry,
++					start_block, offset,
++					sizeof(fragment_entry), &start_block,
++					&offset))
++			goto out;
++
++	*fragment_start_block = fragment_entry.start_block;
++	*fragment_size = fragment_entry.size;
++
++	return 1;
++
++out:
++	return 0;
++}
++
++
++static void squashfs_new_inode(struct squashfs_sb_info *msblk, struct inode *i,
++		struct squashfs_base_inode_header_2 *inodeb, unsigned int ino)
++{
++	struct squashfs_super_block *sblk = &msblk->sblk;
++
++	i->i_ino = ino;
++	i->i_mtime.tv_sec = sblk->mkfs_time;
++	i->i_atime.tv_sec = sblk->mkfs_time;
++	i->i_ctime.tv_sec = sblk->mkfs_time;
++	i->i_uid = msblk->uid[inodeb->uid];
++	i->i_mode = inodeb->mode;
++	i->i_nlink = 1;
++	i->i_size = 0;
++	if (inodeb->guid == SQUASHFS_GUIDS)
++		i->i_gid = i->i_uid;
++	else
++		i->i_gid = msblk->guid[inodeb->guid];
++}
++
++
++static int squashfs_read_inode_2(struct inode *i, squashfs_inode_t inode)
++{
++	struct super_block *s = i->i_sb;
++	struct squashfs_sb_info *msblk = s->s_fs_info;
++	struct squashfs_super_block *sblk = &msblk->sblk;
++	unsigned int block = SQUASHFS_INODE_BLK(inode) +
++		sblk->inode_table_start;
++	unsigned int offset = SQUASHFS_INODE_OFFSET(inode);
++	unsigned int ino = SQUASHFS_MK_VFS_INODE(block -
++		sblk->inode_table_start, offset);
++	long long next_block;
++	unsigned int next_offset;
++	union squashfs_inode_header_2 id, sid;
++	struct squashfs_base_inode_header_2 *inodeb = &id.base,
++					  *sinodeb = &sid.base;
++
++	TRACE("Entered squashfs_read_inode_2\n");
++
++	if (msblk->swap) {
++		if (!squashfs_get_cached_block(s, (char *) sinodeb, block,
++					offset, sizeof(*sinodeb), &next_block,
++					&next_offset))
++			goto failed_read;
++		SQUASHFS_SWAP_BASE_INODE_HEADER_2(inodeb, sinodeb,
++					sizeof(*sinodeb));
++	} else
++		if (!squashfs_get_cached_block(s, (char *) inodeb, block,
++					offset, sizeof(*inodeb), &next_block,
++					&next_offset))
++			goto failed_read;
++
++	squashfs_new_inode(msblk, i, inodeb, ino);
++
++	switch(inodeb->inode_type) {
++		case SQUASHFS_FILE_TYPE: {
++			struct squashfs_reg_inode_header_2 *inodep = &id.reg;
++			struct squashfs_reg_inode_header_2 *sinodep = &sid.reg;
++			long long frag_blk;
++			unsigned int frag_size = 0;
++				
++			if (msblk->swap) {
++				if (!squashfs_get_cached_block(s, (char *)
++						sinodep, block, offset,
++						sizeof(*sinodep), &next_block,
++						&next_offset))
++					goto failed_read;
++				SQUASHFS_SWAP_REG_INODE_HEADER_2(inodep, sinodep);
++			} else
++				if (!squashfs_get_cached_block(s, (char *)
++						inodep, block, offset,
++						sizeof(*inodep), &next_block,
++						&next_offset))
++					goto failed_read;
++
++			frag_blk = SQUASHFS_INVALID_BLK;
++			if (inodep->fragment != SQUASHFS_INVALID_FRAG &&
++					!get_fragment_location_2(s,
++					inodep->fragment, &frag_blk, &frag_size))
++				goto failed_read;
++				
++			i->i_size = inodep->file_size;
++			i->i_fop = &generic_ro_fops;
++			i->i_mode |= S_IFREG;
++			i->i_mtime.tv_sec = inodep->mtime;
++			i->i_atime.tv_sec = inodep->mtime;
++			i->i_ctime.tv_sec = inodep->mtime;
++			i->i_blocks = ((i->i_size - 1) >> 9) + 1;
++			SQUASHFS_I(i)->u.s1.fragment_start_block = frag_blk;
++			SQUASHFS_I(i)->u.s1.fragment_size = frag_size;
++			SQUASHFS_I(i)->u.s1.fragment_offset = inodep->offset;
++			SQUASHFS_I(i)->start_block = inodep->start_block;
++			SQUASHFS_I(i)->u.s1.block_list_start = next_block;
++			SQUASHFS_I(i)->offset = next_offset;
++			i->i_data.a_ops = &squashfs_aops;
++
++			TRACE("File inode %x:%x, start_block %x, "
++					"block_list_start %llx, offset %x\n",
++					SQUASHFS_INODE_BLK(inode), offset,
++					inodep->start_block, next_block,
++					next_offset);
++			break;
++		}
++		case SQUASHFS_DIR_TYPE: {
++			struct squashfs_dir_inode_header_2 *inodep = &id.dir;
++			struct squashfs_dir_inode_header_2 *sinodep = &sid.dir;
++
++			if (msblk->swap) {
++				if (!squashfs_get_cached_block(s, (char *)
++						sinodep, block, offset,
++						sizeof(*sinodep), &next_block,
++						&next_offset))
++					goto failed_read;
++				SQUASHFS_SWAP_DIR_INODE_HEADER_2(inodep, sinodep);
++			} else
++				if (!squashfs_get_cached_block(s, (char *)
++						inodep, block, offset,
++						sizeof(*inodep), &next_block,
++						&next_offset))
++					goto failed_read;
++
++			i->i_size = inodep->file_size;
++			i->i_op = &squashfs_dir_inode_ops_2;
++			i->i_fop = &squashfs_dir_ops_2;
++			i->i_mode |= S_IFDIR;
++			i->i_mtime.tv_sec = inodep->mtime;
++			i->i_atime.tv_sec = inodep->mtime;
++			i->i_ctime.tv_sec = inodep->mtime;
++			SQUASHFS_I(i)->start_block = inodep->start_block;
++			SQUASHFS_I(i)->offset = inodep->offset;
++			SQUASHFS_I(i)->u.s2.directory_index_count = 0;
++			SQUASHFS_I(i)->u.s2.parent_inode = 0;
++
++			TRACE("Directory inode %x:%x, start_block %x, offset "
++					"%x\n", SQUASHFS_INODE_BLK(inode),
++					offset, inodep->start_block,
++					inodep->offset);
++			break;
++		}
++		case SQUASHFS_LDIR_TYPE: {
++			struct squashfs_ldir_inode_header_2 *inodep = &id.ldir;
++			struct squashfs_ldir_inode_header_2 *sinodep = &sid.ldir;
++
++			if (msblk->swap) {
++				if (!squashfs_get_cached_block(s, (char *)
++						sinodep, block, offset,
++						sizeof(*sinodep), &next_block,
++						&next_offset))
++					goto failed_read;
++				SQUASHFS_SWAP_LDIR_INODE_HEADER_2(inodep,
++						sinodep);
++			} else
++				if (!squashfs_get_cached_block(s, (char *)
++						inodep, block, offset,
++						sizeof(*inodep), &next_block,
++						&next_offset))
++					goto failed_read;
++
++			i->i_size = inodep->file_size;
++			i->i_op = &squashfs_dir_inode_ops_2;
++			i->i_fop = &squashfs_dir_ops_2;
++			i->i_mode |= S_IFDIR;
++			i->i_mtime.tv_sec = inodep->mtime;
++			i->i_atime.tv_sec = inodep->mtime;
++			i->i_ctime.tv_sec = inodep->mtime;
++			SQUASHFS_I(i)->start_block = inodep->start_block;
++			SQUASHFS_I(i)->offset = inodep->offset;
++			SQUASHFS_I(i)->u.s2.directory_index_start = next_block;
++			SQUASHFS_I(i)->u.s2.directory_index_offset =
++								next_offset;
++			SQUASHFS_I(i)->u.s2.directory_index_count =
++								inodep->i_count;
++			SQUASHFS_I(i)->u.s2.parent_inode = 0;
++
++			TRACE("Long directory inode %x:%x, start_block %x, "
++					"offset %x\n",
++					SQUASHFS_INODE_BLK(inode), offset,
++					inodep->start_block, inodep->offset);
++			break;
++		}
++		case SQUASHFS_SYMLINK_TYPE: {
++			struct squashfs_symlink_inode_header_2 *inodep =
++								&id.symlink;
++			struct squashfs_symlink_inode_header_2 *sinodep =
++								&sid.symlink;
++	
++			if (msblk->swap) {
++				if (!squashfs_get_cached_block(s, (char *)
++						sinodep, block, offset,
++						sizeof(*sinodep), &next_block,
++						&next_offset))
++					goto failed_read;
++				SQUASHFS_SWAP_SYMLINK_INODE_HEADER_2(inodep,
++								sinodep);
++			} else
++				if (!squashfs_get_cached_block(s, (char *)
++						inodep, block, offset,
++						sizeof(*inodep), &next_block,
++						&next_offset))
++					goto failed_read;
++
++			i->i_size = inodep->symlink_size;
++			i->i_op = &page_symlink_inode_operations;
++			i->i_data.a_ops = &squashfs_symlink_aops;
++			i->i_mode |= S_IFLNK;
++			SQUASHFS_I(i)->start_block = next_block;
++			SQUASHFS_I(i)->offset = next_offset;
++
++			TRACE("Symbolic link inode %x:%x, start_block %llx, "
++					"offset %x\n",
++					SQUASHFS_INODE_BLK(inode), offset,
++					next_block, next_offset);
++			break;
++		 }
++		 case SQUASHFS_BLKDEV_TYPE:
++		 case SQUASHFS_CHRDEV_TYPE: {
++			struct squashfs_dev_inode_header_2 *inodep = &id.dev;
++			struct squashfs_dev_inode_header_2 *sinodep = &sid.dev;
++
++			if (msblk->swap) {
++				if (!squashfs_get_cached_block(s, (char *)
++						sinodep, block, offset,
++						sizeof(*sinodep), &next_block,
++						&next_offset))
++					goto failed_read;
++				SQUASHFS_SWAP_DEV_INODE_HEADER_2(inodep, sinodep);
++			} else	
++				if (!squashfs_get_cached_block(s, (char *)
++						inodep, block, offset,
++						sizeof(*inodep), &next_block,
++						&next_offset))
++					goto failed_read;
++
++			i->i_mode |= (inodeb->inode_type ==
++					SQUASHFS_CHRDEV_TYPE) ?  S_IFCHR :
++					S_IFBLK;
++			init_special_inode(i, i->i_mode,
++					old_decode_dev(inodep->rdev));
++
++			TRACE("Device inode %x:%x, rdev %x\n",
++					SQUASHFS_INODE_BLK(inode), offset,
++					inodep->rdev);
++			break;
++		 }
++		 case SQUASHFS_FIFO_TYPE:
++		 case SQUASHFS_SOCKET_TYPE: {
++
++			i->i_mode |= (inodeb->inode_type == SQUASHFS_FIFO_TYPE)
++							? S_IFIFO : S_IFSOCK;
++			init_special_inode(i, i->i_mode, 0);
++			break;
++		 }
++		 default:
++			ERROR("Unknown inode type %d in squashfs_iget!\n",
++					inodeb->inode_type);
++			goto failed_read1;
++	}
++	
++	return 1;
++
++failed_read:
++	ERROR("Unable to read inode [%x:%x]\n", block, offset);
++
++failed_read1:
++	return 0;
++}
++
++
++static int get_dir_index_using_offset(struct super_block *s, long long 
++				*next_block, unsigned int *next_offset,
++				long long index_start,
++				unsigned int index_offset, int i_count,
++				long long f_pos)
++{
++	struct squashfs_sb_info *msblk = s->s_fs_info;
++	struct squashfs_super_block *sblk = &msblk->sblk;
++	int i, length = 0;
++	struct squashfs_dir_index_2 index;
++
++	TRACE("Entered get_dir_index_using_offset, i_count %d, f_pos %d\n",
++					i_count, (unsigned int) f_pos);
++
++	if (f_pos == 0)
++		goto finish;
++
++	for (i = 0; i < i_count; i++) {
++		if (msblk->swap) {
++			struct squashfs_dir_index_2 sindex;
++			squashfs_get_cached_block(s, (char *) &sindex,
++					index_start, index_offset,
++					sizeof(sindex), &index_start,
++					&index_offset);
++			SQUASHFS_SWAP_DIR_INDEX_2(&index, &sindex);
++		} else
++			squashfs_get_cached_block(s, (char *) &index,
++					index_start, index_offset,
++					sizeof(index), &index_start,
++					&index_offset);
++
++		if (index.index > f_pos)
++			break;
++
++		squashfs_get_cached_block(s, NULL, index_start, index_offset,
++					index.size + 1, &index_start,
++					&index_offset);
++
++		length = index.index;
++		*next_block = index.start_block + sblk->directory_table_start;
++	}
++
++	*next_offset = (length + *next_offset) % SQUASHFS_METADATA_SIZE;
++
++finish:
++	return length;
++}
++
++
++static int get_dir_index_using_name(struct super_block *s, long long
++				*next_block, unsigned int *next_offset,
++				long long index_start,
++				unsigned int index_offset, int i_count,
++				const char *name, int size)
++{
++	struct squashfs_sb_info *msblk = s->s_fs_info;
++	struct squashfs_super_block *sblk = &msblk->sblk;
++	int i, length = 0;
++	struct squashfs_dir_index_2 *index;
++	char *str;
++
++	TRACE("Entered get_dir_index_using_name, i_count %d\n", i_count);
++
++	if (!(str = kmalloc(sizeof(struct squashfs_dir_index) +
++		(SQUASHFS_NAME_LEN + 1) * 2, GFP_KERNEL))) {
++		ERROR("Failed to allocate squashfs_dir_index\n");
++		goto failure;
++	}
++
++	index = (struct squashfs_dir_index_2 *) (str + SQUASHFS_NAME_LEN + 1);
++	strncpy(str, name, size);
++	str[size] = '\0';
++
++	for (i = 0; i < i_count; i++) {
++		if (msblk->swap) {
++			struct squashfs_dir_index_2 sindex;
++			squashfs_get_cached_block(s, (char *) &sindex,
++					index_start, index_offset,
++					sizeof(sindex), &index_start,
++					&index_offset);
++			SQUASHFS_SWAP_DIR_INDEX_2(index, &sindex);
++		} else
++			squashfs_get_cached_block(s, (char *) index,
++					index_start, index_offset,
++					sizeof(struct squashfs_dir_index_2),
++					&index_start, &index_offset);
++
++		squashfs_get_cached_block(s, index->name, index_start,
++					index_offset, index->size + 1,
++					&index_start, &index_offset);
++
++		index->name[index->size + 1] = '\0';
++
++		if (strcmp(index->name, str) > 0)
++			break;
++
++		length = index->index;
++		*next_block = index->start_block + sblk->directory_table_start;
++	}
++
++	*next_offset = (length + *next_offset) % SQUASHFS_METADATA_SIZE;
++	kfree(str);
++failure:
++	return length;
++}
++
++		
++static int squashfs_readdir_2(struct file *file, void *dirent, filldir_t filldir)
++{
++	struct inode *i = file->f_dentry->d_inode;
++	struct squashfs_sb_info *msblk = i->i_sb->s_fs_info;
++	struct squashfs_super_block *sblk = &msblk->sblk;
++	long long next_block = SQUASHFS_I(i)->start_block +
++		sblk->directory_table_start;
++	int next_offset = SQUASHFS_I(i)->offset, length = 0,
++		dir_count;
++	struct squashfs_dir_header_2 dirh;
++	struct squashfs_dir_entry_2 *dire;
++
++	TRACE("Entered squashfs_readdir_2 [%llx:%x]\n", next_block, next_offset);
++
++	if (!(dire = kmalloc(sizeof(struct squashfs_dir_entry) +
++		SQUASHFS_NAME_LEN + 1, GFP_KERNEL))) {
++		ERROR("Failed to allocate squashfs_dir_entry\n");
++		goto finish;
++	}
++
++	length = get_dir_index_using_offset(i->i_sb, &next_block, &next_offset,
++				SQUASHFS_I(i)->u.s2.directory_index_start,
++				SQUASHFS_I(i)->u.s2.directory_index_offset,
++				SQUASHFS_I(i)->u.s2.directory_index_count,
++				file->f_pos);
++
++	while (length < i_size_read(i)) {
++		/* read directory header */
++		if (msblk->swap) {
++			struct squashfs_dir_header_2 sdirh;
++			
++			if (!squashfs_get_cached_block(i->i_sb, (char *) &sdirh,
++					next_block, next_offset, sizeof(sdirh),
++					&next_block, &next_offset))
++				goto failed_read;
++
++			length += sizeof(sdirh);
++			SQUASHFS_SWAP_DIR_HEADER_2(&dirh, &sdirh);
++		} else {
++			if (!squashfs_get_cached_block(i->i_sb, (char *) &dirh,
++					next_block, next_offset, sizeof(dirh),
++					&next_block, &next_offset))
++				goto failed_read;
++
++			length += sizeof(dirh);
++		}
++
++		dir_count = dirh.count + 1;
++		while (dir_count--) {
++			if (msblk->swap) {
++				struct squashfs_dir_entry_2 sdire;
++				if (!squashfs_get_cached_block(i->i_sb, (char *)
++						&sdire, next_block, next_offset,
++						sizeof(sdire), &next_block,
++						&next_offset))
++					goto failed_read;
++				
++				length += sizeof(sdire);
++				SQUASHFS_SWAP_DIR_ENTRY_2(dire, &sdire);
++			} else {
++				if (!squashfs_get_cached_block(i->i_sb, (char *)
++						dire, next_block, next_offset,
++						sizeof(*dire), &next_block,
++						&next_offset))
++					goto failed_read;
++
++				length += sizeof(*dire);
++			}
++
++			if (!squashfs_get_cached_block(i->i_sb, dire->name,
++						next_block, next_offset,
++						dire->size + 1, &next_block,
++						&next_offset))
++				goto failed_read;
++
++			length += dire->size + 1;
++
++			if (file->f_pos >= length)
++				continue;
++
++			dire->name[dire->size + 1] = '\0';
++
++			TRACE("Calling filldir(%x, %s, %d, %d, %x:%x, %d)\n",
++					(unsigned int) dirent, dire->name,
++					dire->size + 1, (int) file->f_pos,
++					dirh.start_block, dire->offset,
++					squashfs_filetype_table[dire->type]);
++
++			if (filldir(dirent, dire->name, dire->size + 1,
++					file->f_pos, SQUASHFS_MK_VFS_INODE(
++					dirh.start_block, dire->offset),
++					squashfs_filetype_table[dire->type])
++					< 0) {
++				TRACE("Filldir returned less than 0\n");
++				goto finish;
++			}
++			file->f_pos = length;
++		}
++	}
++
++finish:
++	kfree(dire);
++	return 0;
++
++failed_read:
++	ERROR("Unable to read directory block [%llx:%x]\n", next_block,
++		next_offset);
++	kfree(dire);
++	return 0;
++}
++
++
++static struct dentry *squashfs_lookup_2(struct inode *i, struct dentry *dentry,
++				struct nameidata *nd)
++{
++	const unsigned char *name = dentry->d_name.name;
++	int len = dentry->d_name.len;
++	struct inode *inode = NULL;
++	struct squashfs_sb_info *msblk = i->i_sb->s_fs_info;
++	struct squashfs_super_block *sblk = &msblk->sblk;
++	long long next_block = SQUASHFS_I(i)->start_block +
++				sblk->directory_table_start;
++	int next_offset = SQUASHFS_I(i)->offset, length = 0,
++				dir_count;
++	struct squashfs_dir_header_2 dirh;
++	struct squashfs_dir_entry_2 *dire;
++	int sorted = sblk->s_major == 2 && sblk->s_minor >= 1;
++
++	TRACE("Entered squashfs_lookup_2 [%llx:%x]\n", next_block, next_offset);
++
++	if (!(dire = kmalloc(sizeof(struct squashfs_dir_entry) +
++		SQUASHFS_NAME_LEN + 1, GFP_KERNEL))) {
++		ERROR("Failed to allocate squashfs_dir_entry\n");
++		goto exit_loop;
++	}
++
++	if (len > SQUASHFS_NAME_LEN)
++		goto exit_loop;
++
++	length = get_dir_index_using_name(i->i_sb, &next_block, &next_offset,
++				SQUASHFS_I(i)->u.s2.directory_index_start,
++				SQUASHFS_I(i)->u.s2.directory_index_offset,
++				SQUASHFS_I(i)->u.s2.directory_index_count, name,
++				len);
++
++	while (length < i_size_read(i)) {
++		/* read directory header */
++		if (msblk->swap) {
++			struct squashfs_dir_header_2 sdirh;
++			if (!squashfs_get_cached_block(i->i_sb, (char *) &sdirh,
++					next_block, next_offset, sizeof(sdirh),
++					&next_block, &next_offset))
++				goto failed_read;
++
++			length += sizeof(sdirh);
++			SQUASHFS_SWAP_DIR_HEADER_2(&dirh, &sdirh);
++		} else {
++			if (!squashfs_get_cached_block(i->i_sb, (char *) &dirh,
++					next_block, next_offset, sizeof(dirh),
++					&next_block, &next_offset))
++				goto failed_read;
++
++			length += sizeof(dirh);
++		}
++
++		dir_count = dirh.count + 1;
++		while (dir_count--) {
++			if (msblk->swap) {
++				struct squashfs_dir_entry_2 sdire;
++				if (!squashfs_get_cached_block(i->i_sb, (char *)
++						&sdire, next_block,next_offset,
++						sizeof(sdire), &next_block,
++						&next_offset))
++					goto failed_read;
++				
++				length += sizeof(sdire);
++				SQUASHFS_SWAP_DIR_ENTRY_2(dire, &sdire);
++			} else {
++				if (!squashfs_get_cached_block(i->i_sb, (char *)
++						dire, next_block,next_offset,
++						sizeof(*dire), &next_block,
++						&next_offset))
++					goto failed_read;
++
++				length += sizeof(*dire);
++			}
++
++			if (!squashfs_get_cached_block(i->i_sb, dire->name,
++					next_block, next_offset, dire->size + 1,
++					&next_block, &next_offset))
++				goto failed_read;
++
++			length += dire->size + 1;
++
++			if (sorted && name[0] < dire->name[0])
++				goto exit_loop;
++
++			if ((len == dire->size + 1) && !strncmp(name,
++						dire->name, len)) {
++				squashfs_inode_t ino =
++					SQUASHFS_MKINODE(dirh.start_block,
++					dire->offset);
++				unsigned int inode_number = SQUASHFS_MK_VFS_INODE(dirh.start_block,
++					dire->offset);
++
++				TRACE("calling squashfs_iget for directory "
++					"entry %s, inode %x:%x, %lld\n", name,
++					dirh.start_block, dire->offset, ino);
++
++				inode = squashfs_iget(i->i_sb, ino, inode_number);
++
++				goto exit_loop;
++			}
++		}
++	}
++
++exit_loop:
++	kfree(dire);
++	d_add(dentry, inode);
++	return ERR_PTR(0);
++
++failed_read:
++	ERROR("Unable to read directory block [%llx:%x]\n", next_block,
++		next_offset);
++	goto exit_loop;
++}
++
++
++int squashfs_2_0_supported(struct squashfs_sb_info *msblk)
++{
++	struct squashfs_super_block *sblk = &msblk->sblk;
++
++	msblk->read_inode = squashfs_read_inode_2;
++	msblk->read_fragment_index_table = read_fragment_index_table_2;
++
++	sblk->bytes_used = sblk->bytes_used_2;
++	sblk->uid_start = sblk->uid_start_2;
++	sblk->guid_start = sblk->guid_start_2;
++	sblk->inode_table_start = sblk->inode_table_start_2;
++	sblk->directory_table_start = sblk->directory_table_start_2;
++	sblk->fragment_table_start = sblk->fragment_table_start_2;
++
++	return 1;
++}
+diff -urN linux-2.6.23/fs/squashfs/uncomp.c linux-2.6.23.sqlzma-ng/fs/squashfs/uncomp.c
+--- linux-2.6.23/fs/squashfs/uncomp.c	1969-12-31 19:00:00.000000000 -0500
++++ linux-2.6.23.sqlzma-ng/fs/squashfs/uncomp.c	2007-11-13 19:40:29.000000000 -0500
+@@ -0,0 +1,221 @@
++/*
++ * Copyright (C) 2006, 2007 Junjiro Okajima
++ * Copyright (C) 2006, 2007 Tomas Matejicek, slax.org
++ *
++ * LICENSE follows the described one in lzma.txt.
++ */
++
++/* $Id: uncomp.c,v 1.1 2007/11/05 05:43:36 jro Exp $ */
++
++/* extract some parts from lzma443/C/7zip/Compress/LZMA_C/LzmaTest.c */
++
++#ifndef __KERNEL__
++#include <stdio.h>
++#include <stdlib.h>
++#include <string.h>
++#include <errno.h>
++#include <assert.h>
++#include <pthread.h>
++#define unlikely(x)		__builtin_expect(!!(x), 0)
++#define BUG_ON(x)		assert(!(x))
++/* sqlzma buffers are always larger than a page. true? */
++#define kmalloc(sz,gfp)		malloc(sz)
++#define kfree(p)		free(p)
++#define zlib_inflate(s, f)	inflate(s, f)
++#define zlib_inflateInit(s)	inflateInit(s)
++#define zlib_inflateReset(s)	inflateReset(s)
++#define zlib_inflateEnd(s)	inflateEnd(s)
++#else
++#include <linux/init.h>
++#include <linux/module.h>
++#include <linux/kernel.h>
++#include <linux/vmalloc.h>
++#ifndef WARN_ON_ONCE
++#define WARN_ON_ONCE(b)	WARN_ON(b)
++#endif
++#endif /* __KERNEL__ */
++
++#include "sqlzma.h"
++#include "LzmaDecode.h"
++
++static int LzmaUncompress(struct sqlzma_un *un)
++{
++	int err, i, ret;
++	SizeT outSize, inProcessed, outProcessed, srclen;
++	/* it's about 24-80 bytes structure, if int is 32-bit */
++	CLzmaDecoderState state;
++	unsigned char *dst, *src, a[8];
++	struct sized_buf *sbuf;
++
++	/* Decode LZMA properties and allocate memory */
++	err = -EINVAL;
++	src = un->un_cmbuf;
++	ret = LzmaDecodeProperties(&state.Properties, src, LZMA_PROPERTIES_SIZE);
++	src += LZMA_PROPERTIES_SIZE;
++	if (unlikely(ret != LZMA_RESULT_OK))
++		goto out;
++	i = LzmaGetNumProbs(&state.Properties);
++	if (unlikely(i <= 0))
++		i = 1;
++	i *= sizeof(CProb);
++	sbuf = un->un_a + SQUN_PROB;
++	if (unlikely(sbuf->sz < i)) {
++		if (sbuf->buf && sbuf->buf != un->un_prob)
++			kfree(sbuf->buf);
++#ifdef __KERNEL__
++		printk("%s:%d: %d --> %d\n", __func__, __LINE__, sbuf->sz, i);
++#else
++		printf("%d --> %d\n", sbuf->sz, i);
++#endif
++		err = -ENOMEM;
++		sbuf->sz = 0;
++		sbuf->buf = kmalloc(i, GFP_ATOMIC);
++		if (unlikely(!sbuf->buf))
++			goto out;
++		sbuf->sz = i;
++	}
++	state.Probs = (void*)sbuf->buf;
++
++	/* Read uncompressed size */
++	memcpy(a, src, sizeof(a));
++	src += sizeof(a);
++	outSize = a[0] | (a[1] << 8) | (a[2] << 16) | (a[3] << 24);
++
++	err = -EINVAL;
++	dst = un->un_resbuf;
++	if (unlikely(!dst || outSize > un->un_reslen))
++		goto out;
++	un->un_reslen = outSize;
++	srclen = un->un_cmlen - (src - un->un_cmbuf);
++
++	/* Decompress */
++	err = LzmaDecode(&state, src, srclen, &inProcessed, dst, outSize,
++			 &outProcessed);
++	if (err)
++		err = -EINVAL;
++
++ out:
++#ifndef __KERNEL__
++	if (err)
++		fprintf(stderr, "err %d\n", err);
++#endif
++	return err;
++}
++
++int sqlzma_un(struct sqlzma_un *un, struct sized_buf *src,
++	      struct sized_buf *dst)
++{
++	int err, by_lzma = 0;
++	if (un->un_lzma && is_lzma(*src->buf)) {
++		by_lzma = 1;
++		un->un_cmbuf = src->buf;
++		un->un_cmlen = src->sz;
++		un->un_resbuf = dst->buf;
++		un->un_reslen = dst->sz;
++
++		/* this library is thread-safe */
++		err = LzmaUncompress(un);
++		goto out;
++	}
++
++	err = zlib_inflateReset(&un->un_stream);
++	if (unlikely(err != Z_OK))
++		goto out;
++	un->un_stream.next_in = src->buf;
++	un->un_stream.avail_in = src->sz;
++	un->un_stream.next_out = dst->buf;
++	un->un_stream.avail_out = dst->sz;
++	err = zlib_inflate(&un->un_stream, Z_FINISH);
++	if (err == Z_STREAM_END)
++		err = 0;
++
++ out:
++	if (err) {
++#ifdef __KERNEL__
++		WARN_ON_ONCE(1);
++#else
++		char a[64] = "ZLIB ";
++		if (by_lzma) {
++			strcpy(a, "LZMA ");
++#ifdef _REENTRANT
++			strerror_r(err, a + 5, sizeof(a) - 5);
++#else
++			strncat(a, strerror(err), sizeof(a) - 5);
++#endif
++		} else
++			strncat(a, zError(err), sizeof(a) - 5);
++		fprintf(stderr, "%s: %.*s\n", __func__, sizeof(a), a);
++#endif
++	}
++	return err;
++}
++
++int sqlzma_init(struct sqlzma_un *un, int do_lzma, unsigned int res_sz)
++{
++	int err;
++
++	err = -ENOMEM;
++	un->un_lzma = do_lzma;
++	memset(un->un_a, 0, sizeof(un->un_a));
++	un->un_a[SQUN_PROB].buf = un->un_prob;
++	un->un_a[SQUN_PROB].sz = sizeof(un->un_prob);
++	if (res_sz) {
++		un->un_a[SQUN_RESULT].buf = kmalloc(res_sz, GFP_KERNEL);
++		if (unlikely(!un->un_a[SQUN_RESULT].buf))
++			return err;
++		un->un_a[SQUN_RESULT].sz = res_sz;
++	}
++
++	un->un_stream.next_in = NULL;
++	un->un_stream.avail_in = 0;
++#ifdef __KERNEL__
++	un->un_stream.workspace = kmalloc(zlib_inflate_workspacesize(), GFP_KERNEL);
++	if (unlikely(!un->un_stream.workspace))
++		return err;
++#else
++	un->un_stream.opaque = NULL;
++	un->un_stream.zalloc = Z_NULL;
++	un->un_stream.zfree = Z_NULL;
++#endif
++	err = zlib_inflateInit(&un->un_stream);
++	if (unlikely(err == Z_MEM_ERROR))
++		return -ENOMEM;
++	BUG_ON(err);
++	return err;
++}
++
++void sqlzma_fin(struct sqlzma_un *un)
++{
++	int i;
++	for (i = 0; i < SQUN_LAST; i++)
++		if (un->un_a[i].buf && un->un_a[i].buf != un->un_prob)
++			kfree(un->un_a[i].buf);
++	BUG_ON(zlib_inflateEnd(&un->un_stream) != Z_OK);
++}
++
++#ifdef __KERNEL__
++EXPORT_SYMBOL(sqlzma_un);
++EXPORT_SYMBOL(sqlzma_init);
++EXPORT_SYMBOL(sqlzma_fin);
++
++#if 0
++static int __init sqlzma_init(void)
++{
++	return 0;
++}
++
++static void __exit sqlzma_exit(void)
++{
++}
++
++module_init(sqlzma_init);
++module_exit(sqlzma_exit);
++#endif
++
++MODULE_LICENSE("GPL");
++MODULE_AUTHOR("Junjiro Okajima <sfjro at users dot sf dot net>");
++MODULE_VERSION("$Id: uncomp.c,v 1.1 2007/11/05 05:43:36 jro Exp $");
++MODULE_DESCRIPTION("LZMA uncompress for squashfs. "
++		   "Some functions for squashfs to support LZMA and "
++		   "a tiny wrapper for LzmaDecode.c in LZMA SDK from www.7-zip.org.");
++#endif
+diff -urN linux-2.6.23/include/linux/squashfs_fs.h linux-2.6.23.sqlzma-ng/include/linux/squashfs_fs.h
+--- linux-2.6.23/include/linux/squashfs_fs.h	1969-12-31 19:00:00.000000000 -0500
++++ linux-2.6.23.sqlzma-ng/include/linux/squashfs_fs.h	2007-11-13 19:12:41.000000000 -0500
+@@ -0,0 +1,937 @@
++#ifndef SQUASHFS_FS
++#define SQUASHFS_FS
++
++/*
++ * Squashfs
++ *
++ * Copyright (c) 2002, 2003, 2004, 2005, 2006, 2007
++ * Phillip Lougher <phillip@lougher.demon.co.uk>
++ *
++ * This program is free software; you can redistribute it and/or
++ * modify it under the terms of the GNU General Public License
++ * as published by the Free Software Foundation; either version 2,
++ * or (at your option) any later version.
++ *
++ * This program is distributed in the hope that it will be useful,
++ * but WITHOUT ANY WARRANTY; without even the implied warranty of
++ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
++ * GNU General Public License for more details.
++ *
++ * You should have received a copy of the GNU General Public License
++ * along with this program; if not, write to the Free Software
++ * Foundation, 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
++ *
++ * squashfs_fs.h
++ */
++
++#ifndef CONFIG_SQUASHFS_2_0_COMPATIBILITY
++#define CONFIG_SQUASHFS_2_0_COMPATIBILITY
++#endif
++
++#define SQUASHFS_CACHED_FRAGMENTS	CONFIG_SQUASHFS_FRAGMENT_CACHE_SIZE	
++#define SQUASHFS_MAJOR			3
++#define SQUASHFS_MINOR			1
++#define SQUASHFS_MAGIC			0x73717368
++#define SQUASHFS_MAGIC_SWAP		0x68737173
++#define SQUASHFS_MAGIC_LZMA             0x71736873
++#define SQUASHFS_MAGIC_LZMA_SWAP        0x73687371
++#define SQUASHFS_START			0
++
++/* size of metadata (inode and directory) blocks */
++#define SQUASHFS_METADATA_SIZE		8192
++#define SQUASHFS_METADATA_LOG		13
++
++/* default size of data blocks */
++#define SQUASHFS_FILE_SIZE		131072
++#define SQUASHFS_FILE_LOG		17
++
++#define SQUASHFS_FILE_MAX_SIZE		1048576
++
++/* Max number of uids and gids */
++#define SQUASHFS_UIDS			256
++#define SQUASHFS_GUIDS			255
++
++/* Max length of filename (not 255) */
++#define SQUASHFS_NAME_LEN		256
++
++#define SQUASHFS_INVALID		((long long) 0xffffffffffff)
++#define SQUASHFS_INVALID_FRAG		((unsigned int) 0xffffffff)
++#define SQUASHFS_INVALID_BLK		((long long) -1)
++#define SQUASHFS_USED_BLK		((long long) -2)
++
++/* Filesystem flags */
++#define SQUASHFS_NOI			0
++#define SQUASHFS_NOD			1
++#define SQUASHFS_CHECK			2
++#define SQUASHFS_NOF			3
++#define SQUASHFS_NO_FRAG		4
++#define SQUASHFS_ALWAYS_FRAG		5
++#define SQUASHFS_DUPLICATE		6
++#define SQUASHFS_EXPORT			7
++
++#define SQUASHFS_BIT(flag, bit)		((flag >> bit) & 1)
++
++#define SQUASHFS_UNCOMPRESSED_INODES(flags)	SQUASHFS_BIT(flags, \
++						SQUASHFS_NOI)
++
++#define SQUASHFS_UNCOMPRESSED_DATA(flags)	SQUASHFS_BIT(flags, \
++						SQUASHFS_NOD)
++
++#define SQUASHFS_UNCOMPRESSED_FRAGMENTS(flags)	SQUASHFS_BIT(flags, \
++						SQUASHFS_NOF)
++
++#define SQUASHFS_NO_FRAGMENTS(flags)		SQUASHFS_BIT(flags, \
++						SQUASHFS_NO_FRAG)
++
++#define SQUASHFS_ALWAYS_FRAGMENTS(flags)	SQUASHFS_BIT(flags, \
++						SQUASHFS_ALWAYS_FRAG)
++
++#define SQUASHFS_DUPLICATES(flags)		SQUASHFS_BIT(flags, \
++						SQUASHFS_DUPLICATE)
++
++#define SQUASHFS_EXPORTABLE(flags)		SQUASHFS_BIT(flags, \
++						SQUASHFS_EXPORT)
++
++#define SQUASHFS_CHECK_DATA(flags)		SQUASHFS_BIT(flags, \
++						SQUASHFS_CHECK)
++
++#define SQUASHFS_MKFLAGS(noi, nod, check_data, nof, no_frag, always_frag, \
++		duplicate_checking, exportable)	(noi | (nod << 1) | (check_data << 2) \
++		| (nof << 3) | (no_frag << 4) | (always_frag << 5) | \
++		(duplicate_checking << 6) | (exportable << 7))
++
++/* Max number of types and file types */
++#define SQUASHFS_DIR_TYPE		1
++#define SQUASHFS_FILE_TYPE		2
++#define SQUASHFS_SYMLINK_TYPE		3
++#define SQUASHFS_BLKDEV_TYPE		4
++#define SQUASHFS_CHRDEV_TYPE		5
++#define SQUASHFS_FIFO_TYPE		6
++#define SQUASHFS_SOCKET_TYPE		7
++#define SQUASHFS_LDIR_TYPE		8
++#define SQUASHFS_LREG_TYPE		9
++
++/* 1.0 filesystem type definitions */
++#define SQUASHFS_TYPES			5
++#define SQUASHFS_IPC_TYPE		0
++
++/* Flag whether block is compressed or uncompressed, bit is set if block is
++ * uncompressed */
++#define SQUASHFS_COMPRESSED_BIT		(1 << 15)
++
++#define SQUASHFS_COMPRESSED_SIZE(B)	(((B) & ~SQUASHFS_COMPRESSED_BIT) ? \
++		(B) & ~SQUASHFS_COMPRESSED_BIT :  SQUASHFS_COMPRESSED_BIT)
++
++#define SQUASHFS_COMPRESSED(B)		(!((B) & SQUASHFS_COMPRESSED_BIT))
++
++#define SQUASHFS_COMPRESSED_BIT_BLOCK		(1 << 24)
++
++#define SQUASHFS_COMPRESSED_SIZE_BLOCK(B)	((B) & \
++	~SQUASHFS_COMPRESSED_BIT_BLOCK)
++
++#define SQUASHFS_COMPRESSED_BLOCK(B)	(!((B) & SQUASHFS_COMPRESSED_BIT_BLOCK))
++
++/*
++ * Inode number ops.  Inodes consist of a compressed block number, and an
++ * uncompressed  offset within that block
++ */
++#define SQUASHFS_INODE_BLK(a)		((unsigned int) ((a) >> 16))
++
++#define SQUASHFS_INODE_OFFSET(a)	((unsigned int) ((a) & 0xffff))
++
++#define SQUASHFS_MKINODE(A, B)		((squashfs_inode_t)(((squashfs_inode_t) (A)\
++					<< 16) + (B)))
++
++/* Compute 32 bit VFS inode number from squashfs inode number */
++#define SQUASHFS_MK_VFS_INODE(a, b)	((unsigned int) (((a) << 8) + \
++					((b) >> 2) + 1))
++/* XXX */
++
++/* Translate between VFS mode and squashfs mode */
++#define SQUASHFS_MODE(a)		((a) & 0xfff)
++
++/* fragment and fragment table defines */
++#define SQUASHFS_FRAGMENT_BYTES(A)	((A) * sizeof(struct squashfs_fragment_entry))
++
++#define SQUASHFS_FRAGMENT_INDEX(A)	(SQUASHFS_FRAGMENT_BYTES(A) / \
++					SQUASHFS_METADATA_SIZE)
++
++#define SQUASHFS_FRAGMENT_INDEX_OFFSET(A)	(SQUASHFS_FRAGMENT_BYTES(A) % \
++						SQUASHFS_METADATA_SIZE)
++
++#define SQUASHFS_FRAGMENT_INDEXES(A)	((SQUASHFS_FRAGMENT_BYTES(A) + \
++					SQUASHFS_METADATA_SIZE - 1) / \
++					SQUASHFS_METADATA_SIZE)
++
++#define SQUASHFS_FRAGMENT_INDEX_BYTES(A)	(SQUASHFS_FRAGMENT_INDEXES(A) *\
++						sizeof(long long))
++
++/* inode lookup table defines */
++#define SQUASHFS_LOOKUP_BYTES(A)	((A) * sizeof(squashfs_inode_t))
++
++#define SQUASHFS_LOOKUP_BLOCK(A)		(SQUASHFS_LOOKUP_BYTES(A) / \
++						SQUASHFS_METADATA_SIZE)
++
++#define SQUASHFS_LOOKUP_BLOCK_OFFSET(A)		(SQUASHFS_LOOKUP_BYTES(A) % \
++						SQUASHFS_METADATA_SIZE)
++
++#define SQUASHFS_LOOKUP_BLOCKS(A)	((SQUASHFS_LOOKUP_BYTES(A) + \
++					SQUASHFS_METADATA_SIZE - 1) / \
++					SQUASHFS_METADATA_SIZE)
++
++#define SQUASHFS_LOOKUP_BLOCK_BYTES(A)	(SQUASHFS_LOOKUP_BLOCKS(A) *\
++					sizeof(long long))
++
++/* cached data constants for filesystem */
++#define SQUASHFS_CACHED_BLKS		8
++
++#define SQUASHFS_MAX_FILE_SIZE_LOG	64
++
++#define SQUASHFS_MAX_FILE_SIZE		((long long) 1 << \
++					(SQUASHFS_MAX_FILE_SIZE_LOG - 2))
++
++#define SQUASHFS_MARKER_BYTE		0xff
++
++/* meta index cache */
++#define SQUASHFS_META_INDEXES	(SQUASHFS_METADATA_SIZE / sizeof(unsigned int))
++#define SQUASHFS_META_ENTRIES	31
++#define SQUASHFS_META_NUMBER	8
++#define SQUASHFS_SLOTS		4
++
++struct meta_entry {
++	long long		data_block;
++	unsigned int		index_block;
++	unsigned short		offset;
++	unsigned short		pad;
++};
++
++struct meta_index {
++	unsigned int		inode_number;
++	unsigned int		offset;
++	unsigned short		entries;
++	unsigned short		skip;
++	unsigned short		locked;
++	unsigned short		pad;
++	struct meta_entry	meta_entry[SQUASHFS_META_ENTRIES];
++};
++
++
++/*
++ * definitions for structures on disk
++ */
++
++typedef long long		squashfs_block_t;
++typedef long long		squashfs_inode_t;
++
++struct squashfs_super_block {
++	unsigned int		s_magic;
++	unsigned int		inodes;
++	unsigned int		bytes_used_2;
++	unsigned int		uid_start_2;
++	unsigned int		guid_start_2;
++	unsigned int		inode_table_start_2;
++	unsigned int		directory_table_start_2;
++	unsigned int		s_major:16;
++	unsigned int		s_minor:16;
++	unsigned int		block_size_1:16;
++	unsigned int		block_log:16;
++	unsigned int		flags:8;
++	unsigned int		no_uids:8;
++	unsigned int		no_guids:8;
++	unsigned int		mkfs_time /* time of filesystem creation */;
++	squashfs_inode_t	root_inode;
++	unsigned int		block_size;
++	unsigned int		fragments;
++	unsigned int		fragment_table_start_2;
++	long long		bytes_used;
++	long long		uid_start;
++	long long		guid_start;
++	long long		inode_table_start;
++	long long		directory_table_start;
++	long long		fragment_table_start;
++	long long		lookup_table_start;
++} __attribute__ ((packed));
++
++struct squashfs_dir_index {
++	unsigned int		index;
++	unsigned int		start_block;
++	unsigned char		size;
++	unsigned char		name[0];
++} __attribute__ ((packed));
++
++#define SQUASHFS_BASE_INODE_HEADER		\
++	unsigned int		inode_type:4;	\
++	unsigned int		mode:12;	\
++	unsigned int		uid:8;		\
++	unsigned int		guid:8;		\
++	unsigned int		mtime;		\
++	unsigned int 		inode_number;
++
++struct squashfs_base_inode_header {
++	SQUASHFS_BASE_INODE_HEADER;
++} __attribute__ ((packed));
++
++struct squashfs_ipc_inode_header {
++	SQUASHFS_BASE_INODE_HEADER;
++	unsigned int		nlink;
++} __attribute__ ((packed));
++
++struct squashfs_dev_inode_header {
++	SQUASHFS_BASE_INODE_HEADER;
++	unsigned int		nlink;
++	unsigned short		rdev;
++} __attribute__ ((packed));
++	
++struct squashfs_symlink_inode_header {
++	SQUASHFS_BASE_INODE_HEADER;
++	unsigned int		nlink;
++	unsigned short		symlink_size;
++	char			symlink[0];
++} __attribute__ ((packed));
++
++struct squashfs_reg_inode_header {
++	SQUASHFS_BASE_INODE_HEADER;
++	squashfs_block_t	start_block;
++	unsigned int		fragment;
++	unsigned int		offset;
++	unsigned int		file_size;
++	unsigned short		block_list[0];
++} __attribute__ ((packed));
++
++struct squashfs_lreg_inode_header {
++	SQUASHFS_BASE_INODE_HEADER;
++	unsigned int		nlink;
++	squashfs_block_t	start_block;
++	unsigned int		fragment;
++	unsigned int		offset;
++	long long		file_size;
++	unsigned short		block_list[0];
++} __attribute__ ((packed));
++
++struct squashfs_dir_inode_header {
++	SQUASHFS_BASE_INODE_HEADER;
++	unsigned int		nlink;
++	unsigned int		file_size:19;
++	unsigned int		offset:13;
++	unsigned int		start_block;
++	unsigned int		parent_inode;
++} __attribute__  ((packed));
++
++struct squashfs_ldir_inode_header {
++	SQUASHFS_BASE_INODE_HEADER;
++	unsigned int		nlink;
++	unsigned int		file_size:27;
++	unsigned int		offset:13;
++	unsigned int		start_block;
++	unsigned int		i_count:16;
++	unsigned int		parent_inode;
++	struct squashfs_dir_index	index[0];
++} __attribute__  ((packed));
++
++union squashfs_inode_header {
++	struct squashfs_base_inode_header	base;
++	struct squashfs_dev_inode_header	dev;
++	struct squashfs_symlink_inode_header	symlink;
++	struct squashfs_reg_inode_header	reg;
++	struct squashfs_lreg_inode_header	lreg;
++	struct squashfs_dir_inode_header	dir;
++	struct squashfs_ldir_inode_header	ldir;
++	struct squashfs_ipc_inode_header	ipc;
++};
++	
++struct squashfs_dir_entry {
++	unsigned int		offset:13;
++	unsigned int		type:3;
++	unsigned int		size:8;
++	unsigned int		inode_number:16;
++	char			name[0];
++} __attribute__ ((packed));
++
++struct squashfs_dir_header {
++	unsigned int		count:8;
++	unsigned int		start_block;
++	unsigned int		inode_number;
++} __attribute__ ((packed));
++
++struct squashfs_fragment_entry {
++	long long		start_block;
++	unsigned int		size;
++	unsigned int		pending;
++} __attribute__ ((packed));
++
++extern int squashfs_uncompress_block(void *d, int dstlen, void *s, int srclen);
++extern int squashfs_uncompress_init(void);
++extern int squashfs_uncompress_exit(void);
++
++/*
++ * macros to convert each packed bitfield structure from little endian to big
++ * endian and vice versa.  These are needed when creating or using a filesystem
++ * on a machine with different byte ordering to the target architecture.
++ *
++ */
++
++#define SQUASHFS_SWAP_START \
++	int bits;\
++	int b_pos;\
++	unsigned long long val;\
++	unsigned char *s;\
++	unsigned char *d;
++
++#define SQUASHFS_SWAP_SUPER_BLOCK(s, d) {\
++	SQUASHFS_SWAP_START\
++	SQUASHFS_MEMSET(s, d, sizeof(struct squashfs_super_block));\
++	SQUASHFS_SWAP((s)->s_magic, d, 0, 32);\
++	SQUASHFS_SWAP((s)->inodes, d, 32, 32);\
++	SQUASHFS_SWAP((s)->bytes_used_2, d, 64, 32);\
++	SQUASHFS_SWAP((s)->uid_start_2, d, 96, 32);\
++	SQUASHFS_SWAP((s)->guid_start_2, d, 128, 32);\
++	SQUASHFS_SWAP((s)->inode_table_start_2, d, 160, 32);\
++	SQUASHFS_SWAP((s)->directory_table_start_2, d, 192, 32);\
++	SQUASHFS_SWAP((s)->s_major, d, 224, 16);\
++	SQUASHFS_SWAP((s)->s_minor, d, 240, 16);\
++	SQUASHFS_SWAP((s)->block_size_1, d, 256, 16);\
++	SQUASHFS_SWAP((s)->block_log, d, 272, 16);\
++	SQUASHFS_SWAP((s)->flags, d, 288, 8);\
++	SQUASHFS_SWAP((s)->no_uids, d, 296, 8);\
++	SQUASHFS_SWAP((s)->no_guids, d, 304, 8);\
++	SQUASHFS_SWAP((s)->mkfs_time, d, 312, 32);\
++	SQUASHFS_SWAP((s)->root_inode, d, 344, 64);\
++	SQUASHFS_SWAP((s)->block_size, d, 408, 32);\
++	SQUASHFS_SWAP((s)->fragments, d, 440, 32);\
++	SQUASHFS_SWAP((s)->fragment_table_start_2, d, 472, 32);\
++	SQUASHFS_SWAP((s)->bytes_used, d, 504, 64);\
++	SQUASHFS_SWAP((s)->uid_start, d, 568, 64);\
++	SQUASHFS_SWAP((s)->guid_start, d, 632, 64);\
++	SQUASHFS_SWAP((s)->inode_table_start, d, 696, 64);\
++	SQUASHFS_SWAP((s)->directory_table_start, d, 760, 64);\
++	SQUASHFS_SWAP((s)->fragment_table_start, d, 824, 64);\
++	SQUASHFS_SWAP((s)->lookup_table_start, d, 888, 64);\
++}
++
++#define SQUASHFS_SWAP_BASE_INODE_CORE(s, d, n)\
++	SQUASHFS_MEMSET(s, d, n);\
++	SQUASHFS_SWAP((s)->inode_type, d, 0, 4);\
++	SQUASHFS_SWAP((s)->mode, d, 4, 12);\
++	SQUASHFS_SWAP((s)->uid, d, 16, 8);\
++	SQUASHFS_SWAP((s)->guid, d, 24, 8);\
++	SQUASHFS_SWAP((s)->mtime, d, 32, 32);\
++	SQUASHFS_SWAP((s)->inode_number, d, 64, 32);
++
++#define SQUASHFS_SWAP_BASE_INODE_HEADER(s, d, n) {\
++	SQUASHFS_SWAP_START\
++	SQUASHFS_SWAP_BASE_INODE_CORE(s, d, n)\
++}
++
++#define SQUASHFS_SWAP_IPC_INODE_HEADER(s, d) {\
++	SQUASHFS_SWAP_START\
++	SQUASHFS_SWAP_BASE_INODE_CORE(s, d, \
++			sizeof(struct squashfs_ipc_inode_header))\
++	SQUASHFS_SWAP((s)->nlink, d, 96, 32);\
++}
++
++#define SQUASHFS_SWAP_DEV_INODE_HEADER(s, d) {\
++	SQUASHFS_SWAP_START\
++	SQUASHFS_SWAP_BASE_INODE_CORE(s, d, \
++			sizeof(struct squashfs_dev_inode_header)); \
++	SQUASHFS_SWAP((s)->nlink, d, 96, 32);\
++	SQUASHFS_SWAP((s)->rdev, d, 128, 16);\
++}
++
++#define SQUASHFS_SWAP_SYMLINK_INODE_HEADER(s, d) {\
++	SQUASHFS_SWAP_START\
++	SQUASHFS_SWAP_BASE_INODE_CORE(s, d, \
++			sizeof(struct squashfs_symlink_inode_header));\
++	SQUASHFS_SWAP((s)->nlink, d, 96, 32);\
++	SQUASHFS_SWAP((s)->symlink_size, d, 128, 16);\
++}
++
++#define SQUASHFS_SWAP_REG_INODE_HEADER(s, d) {\
++	SQUASHFS_SWAP_START\
++	SQUASHFS_SWAP_BASE_INODE_CORE(s, d, \
++			sizeof(struct squashfs_reg_inode_header));\
++	SQUASHFS_SWAP((s)->start_block, d, 96, 64);\
++	SQUASHFS_SWAP((s)->fragment, d, 160, 32);\
++	SQUASHFS_SWAP((s)->offset, d, 192, 32);\
++	SQUASHFS_SWAP((s)->file_size, d, 224, 32);\
++}
++
++#define SQUASHFS_SWAP_LREG_INODE_HEADER(s, d) {\
++	SQUASHFS_SWAP_START\
++	SQUASHFS_SWAP_BASE_INODE_CORE(s, d, \
++			sizeof(struct squashfs_lreg_inode_header));\
++	SQUASHFS_SWAP((s)->nlink, d, 96, 32);\
++	SQUASHFS_SWAP((s)->start_block, d, 128, 64);\
++	SQUASHFS_SWAP((s)->fragment, d, 192, 32);\
++	SQUASHFS_SWAP((s)->offset, d, 224, 32);\
++	SQUASHFS_SWAP((s)->file_size, d, 256, 64);\
++}
++
++#define SQUASHFS_SWAP_DIR_INODE_HEADER(s, d) {\
++	SQUASHFS_SWAP_START\
++	SQUASHFS_SWAP_BASE_INODE_CORE(s, d, \
++			sizeof(struct squashfs_dir_inode_header));\
++	SQUASHFS_SWAP((s)->nlink, d, 96, 32);\
++	SQUASHFS_SWAP((s)->file_size, d, 128, 19);\
++	SQUASHFS_SWAP((s)->offset, d, 147, 13);\
++	SQUASHFS_SWAP((s)->start_block, d, 160, 32);\
++	SQUASHFS_SWAP((s)->parent_inode, d, 192, 32);\
++}
++
++#define SQUASHFS_SWAP_LDIR_INODE_HEADER(s, d) {\
++	SQUASHFS_SWAP_START\
++	SQUASHFS_SWAP_BASE_INODE_CORE(s, d, \
++			sizeof(struct squashfs_ldir_inode_header));\
++	SQUASHFS_SWAP((s)->nlink, d, 96, 32);\
++	SQUASHFS_SWAP((s)->file_size, d, 128, 27);\
++	SQUASHFS_SWAP((s)->offset, d, 155, 13);\
++	SQUASHFS_SWAP((s)->start_block, d, 168, 32);\
++	SQUASHFS_SWAP((s)->i_count, d, 200, 16);\
++	SQUASHFS_SWAP((s)->parent_inode, d, 216, 32);\
++}
++
++#define SQUASHFS_SWAP_DIR_INDEX(s, d) {\
++	SQUASHFS_SWAP_START\
++	SQUASHFS_MEMSET(s, d, sizeof(struct squashfs_dir_index));\
++	SQUASHFS_SWAP((s)->index, d, 0, 32);\
++	SQUASHFS_SWAP((s)->start_block, d, 32, 32);\
++	SQUASHFS_SWAP((s)->size, d, 64, 8);\
++}
++
++#define SQUASHFS_SWAP_DIR_HEADER(s, d) {\
++	SQUASHFS_SWAP_START\
++	SQUASHFS_MEMSET(s, d, sizeof(struct squashfs_dir_header));\
++	SQUASHFS_SWAP((s)->count, d, 0, 8);\
++	SQUASHFS_SWAP((s)->start_block, d, 8, 32);\
++	SQUASHFS_SWAP((s)->inode_number, d, 40, 32);\
++}
++
++#define SQUASHFS_SWAP_DIR_ENTRY(s, d) {\
++	SQUASHFS_SWAP_START\
++	SQUASHFS_MEMSET(s, d, sizeof(struct squashfs_dir_entry));\
++	SQUASHFS_SWAP((s)->offset, d, 0, 13);\
++	SQUASHFS_SWAP((s)->type, d, 13, 3);\
++	SQUASHFS_SWAP((s)->size, d, 16, 8);\
++	SQUASHFS_SWAP((s)->inode_number, d, 24, 16);\
++}
++
++#define SQUASHFS_SWAP_FRAGMENT_ENTRY(s, d) {\
++	SQUASHFS_SWAP_START\
++	SQUASHFS_MEMSET(s, d, sizeof(struct squashfs_fragment_entry));\
++	SQUASHFS_SWAP((s)->start_block, d, 0, 64);\
++	SQUASHFS_SWAP((s)->size, d, 64, 32);\
++}
++
++#define SQUASHFS_SWAP_INODE_T(s, d) SQUASHFS_SWAP_LONG_LONGS(s, d, 1)
++
++#define SQUASHFS_SWAP_SHORTS(s, d, n) {\
++	int entry;\
++	int bit_position;\
++	SQUASHFS_SWAP_START\
++	SQUASHFS_MEMSET(s, d, n * 2);\
++	for(entry = 0, bit_position = 0; entry < n; entry++, bit_position += \
++			16)\
++		SQUASHFS_SWAP(s[entry], d, bit_position, 16);\
++}
++
++#define SQUASHFS_SWAP_INTS(s, d, n) {\
++	int entry;\
++	int bit_position;\
++	SQUASHFS_SWAP_START\
++	SQUASHFS_MEMSET(s, d, n * 4);\
++	for(entry = 0, bit_position = 0; entry < n; entry++, bit_position += \
++			32)\
++		SQUASHFS_SWAP(s[entry], d, bit_position, 32);\
++}
++
++#define SQUASHFS_SWAP_LONG_LONGS(s, d, n) {\
++	int entry;\
++	int bit_position;\
++	SQUASHFS_SWAP_START\
++	SQUASHFS_MEMSET(s, d, n * 8);\
++	for(entry = 0, bit_position = 0; entry < n; entry++, bit_position += \
++			64)\
++		SQUASHFS_SWAP(s[entry], d, bit_position, 64);\
++}
++
++#define SQUASHFS_SWAP_DATA(s, d, n, bits) {\
++	int entry;\
++	int bit_position;\
++	SQUASHFS_SWAP_START\
++	SQUASHFS_MEMSET(s, d, n * bits / 8);\
++	for(entry = 0, bit_position = 0; entry < n; entry++, bit_position += \
++			bits)\
++		SQUASHFS_SWAP(s[entry], d, bit_position, bits);\
++}
++
++#define SQUASHFS_SWAP_FRAGMENT_INDEXES(s, d, n) SQUASHFS_SWAP_LONG_LONGS(s, d, n)
++#define SQUASHFS_SWAP_LOOKUP_BLOCKS(s, d, n) SQUASHFS_SWAP_LONG_LONGS(s, d, n)
++
++#ifdef CONFIG_SQUASHFS_1_0_COMPATIBILITY
++
++struct squashfs_base_inode_header_1 {
++	unsigned int		inode_type:4;
++	unsigned int		mode:12; /* protection */
++	unsigned int		uid:4; /* index into uid table */
++	unsigned int		guid:4; /* index into guid table */
++} __attribute__ ((packed));
++
++struct squashfs_ipc_inode_header_1 {
++	unsigned int		inode_type:4;
++	unsigned int		mode:12; /* protection */
++	unsigned int		uid:4; /* index into uid table */
++	unsigned int		guid:4; /* index into guid table */
++	unsigned int		type:4;
++	unsigned int		offset:4;
++} __attribute__ ((packed));
++
++struct squashfs_dev_inode_header_1 {
++	unsigned int		inode_type:4;
++	unsigned int		mode:12; /* protection */
++	unsigned int		uid:4; /* index into uid table */
++	unsigned int		guid:4; /* index into guid table */
++	unsigned short		rdev;
++} __attribute__ ((packed));
++	
++struct squashfs_symlink_inode_header_1 {
++	unsigned int		inode_type:4;
++	unsigned int		mode:12; /* protection */
++	unsigned int		uid:4; /* index into uid table */
++	unsigned int		guid:4; /* index into guid table */
++	unsigned short		symlink_size;
++	char			symlink[0];
++} __attribute__ ((packed));
++
++struct squashfs_reg_inode_header_1 {
++	unsigned int		inode_type:4;
++	unsigned int		mode:12; /* protection */
++	unsigned int		uid:4; /* index into uid table */
++	unsigned int		guid:4; /* index into guid table */
++	unsigned int		mtime;
++	unsigned int		start_block;
++	unsigned int		file_size:32;
++	unsigned short		block_list[0];
++} __attribute__ ((packed));
++
++struct squashfs_dir_inode_header_1 {
++	unsigned int		inode_type:4;
++	unsigned int		mode:12; /* protection */
++	unsigned int		uid:4; /* index into uid table */
++	unsigned int		guid:4; /* index into guid table */
++	unsigned int		file_size:19;
++	unsigned int		offset:13;
++	unsigned int		mtime;
++	unsigned int		start_block:24;
++} __attribute__  ((packed));
++
++union squashfs_inode_header_1 {
++	struct squashfs_base_inode_header_1	base;
++	struct squashfs_dev_inode_header_1	dev;
++	struct squashfs_symlink_inode_header_1	symlink;
++	struct squashfs_reg_inode_header_1	reg;
++	struct squashfs_dir_inode_header_1	dir;
++	struct squashfs_ipc_inode_header_1	ipc;
++};
++
++#define SQUASHFS_SWAP_BASE_INODE_CORE_1(s, d, n) \
++	SQUASHFS_MEMSET(s, d, n);\
++	SQUASHFS_SWAP((s)->inode_type, d, 0, 4);\
++	SQUASHFS_SWAP((s)->mode, d, 4, 12);\
++	SQUASHFS_SWAP((s)->uid, d, 16, 4);\
++	SQUASHFS_SWAP((s)->guid, d, 20, 4);
++
++#define SQUASHFS_SWAP_BASE_INODE_HEADER_1(s, d, n) {\
++	SQUASHFS_SWAP_START\
++	SQUASHFS_SWAP_BASE_INODE_CORE_1(s, d, n)\
++}
++
++#define SQUASHFS_SWAP_IPC_INODE_HEADER_1(s, d) {\
++	SQUASHFS_SWAP_START\
++	SQUASHFS_SWAP_BASE_INODE_CORE_1(s, d, \
++			sizeof(struct squashfs_ipc_inode_header_1));\
++	SQUASHFS_SWAP((s)->type, d, 24, 4);\
++	SQUASHFS_SWAP((s)->offset, d, 28, 4);\
++}
++
++#define SQUASHFS_SWAP_DEV_INODE_HEADER_1(s, d) {\
++	SQUASHFS_SWAP_START\
++	SQUASHFS_SWAP_BASE_INODE_CORE_1(s, d, \
++			sizeof(struct squashfs_dev_inode_header_1));\
++	SQUASHFS_SWAP((s)->rdev, d, 24, 16);\
++}
++
++#define SQUASHFS_SWAP_SYMLINK_INODE_HEADER_1(s, d) {\
++	SQUASHFS_SWAP_START\
++	SQUASHFS_SWAP_BASE_INODE_CORE_1(s, d, \
++			sizeof(struct squashfs_symlink_inode_header_1));\
++	SQUASHFS_SWAP((s)->symlink_size, d, 24, 16);\
++}
++
++#define SQUASHFS_SWAP_REG_INODE_HEADER_1(s, d) {\
++	SQUASHFS_SWAP_START\
++	SQUASHFS_SWAP_BASE_INODE_CORE_1(s, d, \
++			sizeof(struct squashfs_reg_inode_header_1));\
++	SQUASHFS_SWAP((s)->mtime, d, 24, 32);\
++	SQUASHFS_SWAP((s)->start_block, d, 56, 32);\
++	SQUASHFS_SWAP((s)->file_size, d, 88, 32);\
++}
++
++#define SQUASHFS_SWAP_DIR_INODE_HEADER_1(s, d) {\
++	SQUASHFS_SWAP_START\
++	SQUASHFS_SWAP_BASE_INODE_CORE_1(s, d, \
++			sizeof(struct squashfs_dir_inode_header_1));\
++	SQUASHFS_SWAP((s)->file_size, d, 24, 19);\
++	SQUASHFS_SWAP((s)->offset, d, 43, 13);\
++	SQUASHFS_SWAP((s)->mtime, d, 56, 32);\
++	SQUASHFS_SWAP((s)->start_block, d, 88, 24);\
++}
++
++#endif
++
++#ifdef CONFIG_SQUASHFS_2_0_COMPATIBILITY
++
++struct squashfs_dir_index_2 {
++	unsigned int		index:27;
++	unsigned int		start_block:29;
++	unsigned char		size;
++	unsigned char		name[0];
++} __attribute__ ((packed));
++
++struct squashfs_base_inode_header_2 {
++	unsigned int		inode_type:4;
++	unsigned int		mode:12; /* protection */
++	unsigned int		uid:8; /* index into uid table */
++	unsigned int		guid:8; /* index into guid table */
++} __attribute__ ((packed));
++
++struct squashfs_ipc_inode_header_2 {
++	unsigned int		inode_type:4;
++	unsigned int		mode:12; /* protection */
++	unsigned int		uid:8; /* index into uid table */
++	unsigned int		guid:8; /* index into guid table */
++} __attribute__ ((packed));
++
++struct squashfs_dev_inode_header_2 {
++	unsigned int		inode_type:4;
++	unsigned int		mode:12; /* protection */
++	unsigned int		uid:8; /* index into uid table */
++	unsigned int		guid:8; /* index into guid table */
++	unsigned short		rdev;
++} __attribute__ ((packed));
++	
++struct squashfs_symlink_inode_header_2 {
++	unsigned int		inode_type:4;
++	unsigned int		mode:12; /* protection */
++	unsigned int		uid:8; /* index into uid table */
++	unsigned int		guid:8; /* index into guid table */
++	unsigned short		symlink_size;
++	char			symlink[0];
++} __attribute__ ((packed));
++
++struct squashfs_reg_inode_header_2 {
++	unsigned int		inode_type:4;
++	unsigned int		mode:12; /* protection */
++	unsigned int		uid:8; /* index into uid table */
++	unsigned int		guid:8; /* index into guid table */
++	unsigned int		mtime;
++	unsigned int		start_block;
++	unsigned int		fragment;
++	unsigned int		offset;
++	unsigned int		file_size:32;
++	unsigned short		block_list[0];
++} __attribute__ ((packed));
++
++struct squashfs_dir_inode_header_2 {
++	unsigned int		inode_type:4;
++	unsigned int		mode:12; /* protection */
++	unsigned int		uid:8; /* index into uid table */
++	unsigned int		guid:8; /* index into guid table */
++	unsigned int		file_size:19;
++	unsigned int		offset:13;
++	unsigned int		mtime;
++	unsigned int		start_block:24;
++} __attribute__  ((packed));
++
++struct squashfs_ldir_inode_header_2 {
++	unsigned int		inode_type:4;
++	unsigned int		mode:12; /* protection */
++	unsigned int		uid:8; /* index into uid table */
++	unsigned int		guid:8; /* index into guid table */
++	unsigned int		file_size:27;
++	unsigned int		offset:13;
++	unsigned int		mtime;
++	unsigned int		start_block:24;
++	unsigned int		i_count:16;
++	struct squashfs_dir_index_2	index[0];
++} __attribute__  ((packed));
++
++union squashfs_inode_header_2 {
++	struct squashfs_base_inode_header_2	base;
++	struct squashfs_dev_inode_header_2	dev;
++	struct squashfs_symlink_inode_header_2	symlink;
++	struct squashfs_reg_inode_header_2	reg;
++	struct squashfs_dir_inode_header_2	dir;
++	struct squashfs_ldir_inode_header_2	ldir;
++	struct squashfs_ipc_inode_header_2	ipc;
++};
++	
++struct squashfs_dir_header_2 {
++	unsigned int		count:8;
++	unsigned int		start_block:24;
++} __attribute__ ((packed));
++
++struct squashfs_dir_entry_2 {
++	unsigned int		offset:13;
++	unsigned int		type:3;
++	unsigned int		size:8;
++	char			name[0];
++} __attribute__ ((packed));
++
++struct squashfs_fragment_entry_2 {
++	unsigned int		start_block;
++	unsigned int		size;
++} __attribute__ ((packed));
++
++#define SQUASHFS_SWAP_BASE_INODE_CORE_2(s, d, n)\
++	SQUASHFS_MEMSET(s, d, n);\
++	SQUASHFS_SWAP((s)->inode_type, d, 0, 4);\
++	SQUASHFS_SWAP((s)->mode, d, 4, 12);\
++	SQUASHFS_SWAP((s)->uid, d, 16, 8);\
++	SQUASHFS_SWAP((s)->guid, d, 24, 8);\
++
++#define SQUASHFS_SWAP_BASE_INODE_HEADER_2(s, d, n) {\
++	SQUASHFS_SWAP_START\
++	SQUASHFS_SWAP_BASE_INODE_CORE_2(s, d, n)\
++}
++
++#define SQUASHFS_SWAP_IPC_INODE_HEADER_2(s, d) \
++	SQUASHFS_SWAP_BASE_INODE_HEADER_2(s, d, sizeof(struct squashfs_ipc_inode_header_2))
++
++#define SQUASHFS_SWAP_DEV_INODE_HEADER_2(s, d) {\
++	SQUASHFS_SWAP_START\
++	SQUASHFS_SWAP_BASE_INODE_CORE_2(s, d, \
++			sizeof(struct squashfs_dev_inode_header_2)); \
++	SQUASHFS_SWAP((s)->rdev, d, 32, 16);\
++}
++
++#define SQUASHFS_SWAP_SYMLINK_INODE_HEADER_2(s, d) {\
++	SQUASHFS_SWAP_START\
++	SQUASHFS_SWAP_BASE_INODE_CORE_2(s, d, \
++			sizeof(struct squashfs_symlink_inode_header_2));\
++	SQUASHFS_SWAP((s)->symlink_size, d, 32, 16);\
++}
++
++#define SQUASHFS_SWAP_REG_INODE_HEADER_2(s, d) {\
++	SQUASHFS_SWAP_START\
++	SQUASHFS_SWAP_BASE_INODE_CORE_2(s, d, \
++			sizeof(struct squashfs_reg_inode_header_2));\
++	SQUASHFS_SWAP((s)->mtime, d, 32, 32);\
++	SQUASHFS_SWAP((s)->start_block, d, 64, 32);\
++	SQUASHFS_SWAP((s)->fragment, d, 96, 32);\
++	SQUASHFS_SWAP((s)->offset, d, 128, 32);\
++	SQUASHFS_SWAP((s)->file_size, d, 160, 32);\
++}
++
++#define SQUASHFS_SWAP_DIR_INODE_HEADER_2(s, d) {\
++	SQUASHFS_SWAP_START\
++	SQUASHFS_SWAP_BASE_INODE_CORE_2(s, d, \
++			sizeof(struct squashfs_dir_inode_header_2));\
++	SQUASHFS_SWAP((s)->file_size, d, 32, 19);\
++	SQUASHFS_SWAP((s)->offset, d, 51, 13);\
++	SQUASHFS_SWAP((s)->mtime, d, 64, 32);\
++	SQUASHFS_SWAP((s)->start_block, d, 96, 24);\
++}
++
++#define SQUASHFS_SWAP_LDIR_INODE_HEADER_2(s, d) {\
++	SQUASHFS_SWAP_START\
++	SQUASHFS_SWAP_BASE_INODE_CORE_2(s, d, \
++			sizeof(struct squashfs_ldir_inode_header_2));\
++	SQUASHFS_SWAP((s)->file_size, d, 32, 27);\
++	SQUASHFS_SWAP((s)->offset, d, 59, 13);\
++	SQUASHFS_SWAP((s)->mtime, d, 72, 32);\
++	SQUASHFS_SWAP((s)->start_block, d, 104, 24);\
++	SQUASHFS_SWAP((s)->i_count, d, 128, 16);\
++}
++
++#define SQUASHFS_SWAP_DIR_INDEX_2(s, d) {\
++	SQUASHFS_SWAP_START\
++	SQUASHFS_MEMSET(s, d, sizeof(struct squashfs_dir_index_2));\
++	SQUASHFS_SWAP((s)->index, d, 0, 27);\
++	SQUASHFS_SWAP((s)->start_block, d, 27, 29);\
++	SQUASHFS_SWAP((s)->size, d, 56, 8);\
++}
++#define SQUASHFS_SWAP_DIR_HEADER_2(s, d) {\
++	SQUASHFS_SWAP_START\
++	SQUASHFS_MEMSET(s, d, sizeof(struct squashfs_dir_header_2));\
++	SQUASHFS_SWAP((s)->count, d, 0, 8);\
++	SQUASHFS_SWAP((s)->start_block, d, 8, 24);\
++}
++
++#define SQUASHFS_SWAP_DIR_ENTRY_2(s, d) {\
++	SQUASHFS_SWAP_START\
++	SQUASHFS_MEMSET(s, d, sizeof(struct squashfs_dir_entry_2));\
++	SQUASHFS_SWAP((s)->offset, d, 0, 13);\
++	SQUASHFS_SWAP((s)->type, d, 13, 3);\
++	SQUASHFS_SWAP((s)->size, d, 16, 8);\
++}
++
++#define SQUASHFS_SWAP_FRAGMENT_ENTRY_2(s, d) {\
++	SQUASHFS_SWAP_START\
++	SQUASHFS_MEMSET(s, d, sizeof(struct squashfs_fragment_entry_2));\
++	SQUASHFS_SWAP((s)->start_block, d, 0, 32);\
++	SQUASHFS_SWAP((s)->size, d, 32, 32);\
++}
++
++#define SQUASHFS_SWAP_FRAGMENT_INDEXES_2(s, d, n) SQUASHFS_SWAP_INTS(s, d, n)
++
++/* fragment and fragment table defines */
++#define SQUASHFS_FRAGMENT_BYTES_2(A)	(A * sizeof(struct squashfs_fragment_entry_2))
++
++#define SQUASHFS_FRAGMENT_INDEX_2(A)	(SQUASHFS_FRAGMENT_BYTES_2(A) / \
++					SQUASHFS_METADATA_SIZE)
++
++#define SQUASHFS_FRAGMENT_INDEX_OFFSET_2(A)	(SQUASHFS_FRAGMENT_BYTES_2(A) % \
++						SQUASHFS_METADATA_SIZE)
++
++#define SQUASHFS_FRAGMENT_INDEXES_2(A)	((SQUASHFS_FRAGMENT_BYTES_2(A) + \
++					SQUASHFS_METADATA_SIZE - 1) / \
++					SQUASHFS_METADATA_SIZE)
++
++#define SQUASHFS_FRAGMENT_INDEX_BYTES_2(A)	(SQUASHFS_FRAGMENT_INDEXES_2(A) *\
++						sizeof(int))
++
++#endif
++
++#ifdef __KERNEL__
++
++/*
++ * macros used to swap each structure entry, taking into account
++ * bitfields and different bitfield placing conventions on differing
++ * architectures
++ */
++
++#include <asm/byteorder.h>
++
++#ifdef __BIG_ENDIAN
++	/* convert from little endian to big endian */
++#define SQUASHFS_SWAP(value, p, pos, tbits) _SQUASHFS_SWAP(value, p, pos, \
++		tbits, b_pos)
++#else
++	/* convert from big endian to little endian */ 
++#define SQUASHFS_SWAP(value, p, pos, tbits) _SQUASHFS_SWAP(value, p, pos, \
++		tbits, 64 - tbits - b_pos)
++#endif
++
++#define _SQUASHFS_SWAP(value, p, pos, tbits, SHIFT) {\
++	b_pos = pos % 8;\
++	val = 0;\
++	s = (unsigned char *)p + (pos / 8);\
++	d = ((unsigned char *) &val) + 7;\
++	for(bits = 0; bits < (tbits + b_pos); bits += 8) \
++		*d-- = *s++;\
++	value = (val >> (SHIFT))/* & ((1 << tbits) - 1)*/;\
++}
++
++#define SQUASHFS_MEMSET(s, d, n)	memset(s, 0, n);
++
++#endif
++#endif
+diff -urN linux-2.6.23/include/linux/squashfs_fs_i.h linux-2.6.23.sqlzma-ng/include/linux/squashfs_fs_i.h
+--- linux-2.6.23/include/linux/squashfs_fs_i.h	1969-12-31 19:00:00.000000000 -0500
++++ linux-2.6.23.sqlzma-ng/include/linux/squashfs_fs_i.h	2007-11-13 18:58:41.000000000 -0500
+@@ -0,0 +1,45 @@
++#ifndef SQUASHFS_FS_I
++#define SQUASHFS_FS_I
++/*
++ * Squashfs
++ *
++ * Copyright (c) 2002, 2003, 2004, 2005, 2006, 2007
++ * Phillip Lougher <phillip@lougher.demon.co.uk>
++ *
++ * This program is free software; you can redistribute it and/or
++ * modify it under the terms of the GNU General Public License
++ * as published by the Free Software Foundation; either version 2,
++ * or (at your option) any later version.
++ *
++ * This program is distributed in the hope that it will be useful,
++ * but WITHOUT ANY WARRANTY; without even the implied warranty of
++ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
++ * GNU General Public License for more details.
++ *
++ * You should have received a copy of the GNU General Public License
++ * along with this program; if not, write to the Free Software
++ * Foundation, 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
++ *
++ * squashfs_fs_i.h
++ */
++
++struct squashfs_inode_info {
++	long long	start_block;
++	unsigned int	offset;
++	union {
++		struct {
++			long long	fragment_start_block;
++			unsigned int	fragment_size;
++			unsigned int	fragment_offset;
++			long long	block_list_start;
++		} s1;
++		struct {
++			long long	directory_index_start;
++			unsigned int	directory_index_offset;
++			unsigned int	directory_index_count;
++			unsigned int	parent_inode;
++		} s2;
++	} u;
++	struct inode	vfs_inode;
++};
++#endif
+diff -urN linux-2.6.23/include/linux/squashfs_fs_sb.h linux-2.6.23.sqlzma-ng/include/linux/squashfs_fs_sb.h
+--- linux-2.6.23/include/linux/squashfs_fs_sb.h	1969-12-31 19:00:00.000000000 -0500
++++ linux-2.6.23.sqlzma-ng/include/linux/squashfs_fs_sb.h	2007-11-13 19:19:28.000000000 -0500
+@@ -0,0 +1,76 @@
++#ifndef SQUASHFS_FS_SB
++#define SQUASHFS_FS_SB
++/*
++ * Squashfs
++ *
++ * Copyright (c) 2002, 2003, 2004, 2005, 2006, 2007
++ * Phillip Lougher <phillip@lougher.demon.co.uk>
++ *
++ * This program is free software; you can redistribute it and/or
++ * modify it under the terms of the GNU General Public License
++ * as published by the Free Software Foundation; either version 2,
++ * or (at your option) any later version.
++ *
++ * This program is distributed in the hope that it will be useful,
++ * but WITHOUT ANY WARRANTY; without even the implied warranty of
++ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
++ * GNU General Public License for more details.
++ *
++ * You should have received a copy of the GNU General Public License
++ * along with this program; if not, write to the Free Software
++ * Foundation, 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
++ *
++ * squashfs_fs_sb.h
++ */
++
++#include <linux/squashfs_fs.h>
++
++struct squashfs_cache {
++	long long	block;
++	int		length;
++	long long	next_index;
++	char		*data;
++};
++
++struct squashfs_fragment_cache {
++	long long	block;
++	int		length;
++	unsigned int	locked;
++	char		*data;
++};
++
++struct squashfs_sb_info {
++	struct squashfs_super_block	sblk;
++	int			devblksize;
++	int			devblksize_log2;
++	int			swap;
++	struct squashfs_cache	*block_cache;
++	struct squashfs_fragment_cache	*fragment;
++	int			next_cache;
++	int			next_fragment;
++	int			next_meta_index;
++	unsigned int		*uid;
++	unsigned int		*guid;
++	long long		*fragment_index;
++	unsigned int		*fragment_index_2;
++	char			*read_page;
++	//struct mutex		read_data_mutex;
++	struct mutex		read_page_mutex;
++	struct mutex		block_cache_mutex;
++	struct mutex		fragment_mutex;
++	struct mutex		meta_index_mutex;
++	wait_queue_head_t	waitq;
++	wait_queue_head_t	fragment_wait_queue;
++	struct meta_index	*meta_index;
++	//z_stream		stream;
++	long long		*inode_lookup_table;
++	int			unused_cache_blks;
++	int			unused_frag_blks;
++	int			(*read_inode)(struct inode *i,  squashfs_inode_t \
++				inode);
++	long long		(*read_blocklist)(struct inode *inode, int \
++				index, int readahead_blks, char *block_list, \
++				unsigned short **block_p, unsigned int *bsize);
++	int			(*read_fragment_index_table)(struct super_block *s);
++};
++#endif
+
diff --git a/packages/linux/linux-openmoko/0002-squashfs-initrd.patch b/packages/linux/linux-openmoko/0002-squashfs-initrd.patch
new file mode 100644
index 0000000000..cd2c678058
--- /dev/null
+++ b/packages/linux/linux-openmoko/0002-squashfs-initrd.patch
@@ -0,0 +1,55 @@
+diff -urN linux-2.6.23/init/do_mounts_rd.c linux-2.6.23.sqlzma-ng/init/do_mounts_rd.c
+--- linux-2.6.23/init/do_mounts_rd.c	2007-10-09 16:31:38.000000000 -0400
++++ linux-2.6.23.sqlzma-ng/init/do_mounts_rd.c	2007-11-13 18:58:41.000000000 -0500
+@@ -5,6 +5,7 @@
+ #include <linux/ext2_fs.h>
+ #include <linux/romfs_fs.h>
+ #include <linux/cramfs_fs.h>
++#include <linux/squashfs_fs.h>
+ #include <linux/initrd.h>
+ #include <linux/string.h>
+ 
+@@ -39,6 +40,7 @@
+  * numbers could not be found.
+  *
+  * We currently check for the following magic numbers:
++ *      squashfs
+  * 	minix
+  * 	ext2
+  *	romfs
+@@ -53,6 +55,7 @@
+ 	struct ext2_super_block *ext2sb;
+ 	struct romfs_super_block *romfsb;
+ 	struct cramfs_super *cramfsb;
++	struct squashfs_super_block *squashfsb;
+ 	int nblocks = -1;
+ 	unsigned char *buf;
+ 
+@@ -64,6 +67,7 @@
+ 	ext2sb = (struct ext2_super_block *) buf;
+ 	romfsb = (struct romfs_super_block *) buf;
+ 	cramfsb = (struct cramfs_super *) buf;
++	squashfsb = (struct squashfs_super_block *) buf;
+ 	memset(buf, 0xe5, size);
+ 
+ 	/*
+@@ -101,6 +105,18 @@
+ 		goto done;
+ 	}
+ 
++	/* squashfs is at block zero too */
++	if (squashfsb->s_magic == SQUASHFS_MAGIC) {
++		printk(KERN_NOTICE
++		       "RAMDISK: squashfs filesystem found at block %d\n",
++		       start_block);
++		if (squashfsb->s_major < 3)
++			nblocks = (squashfsb->bytes_used_2+BLOCK_SIZE-1)>>BLOCK_SIZE_BITS;
++		else
++			nblocks = (squashfsb->bytes_used+BLOCK_SIZE-1)>>BLOCK_SIZE_BITS;
++		goto done;
++	}
++
+ 	/*
+ 	 * Read block 1 to test for minix and ext2 superblock
+ 	 */
+
diff --git a/packages/linux/linux-openmoko/0003-squashfs-force-O2.patch b/packages/linux/linux-openmoko/0003-squashfs-force-O2.patch
new file mode 100644
index 0000000000..550077b9fa
--- /dev/null
+++ b/packages/linux/linux-openmoko/0003-squashfs-force-O2.patch
@@ -0,0 +1,17 @@
+The kernel patch from the squashfs-3.1r2 release did not compile on my
+armeb-linux-gcc 4.1.1 when optimizing for size (-Os). This works around
+that problem by using optimization flag -O2 instead for these two files.
+
+Signed-off-by: Leon Woestenberg <leonw@mailcan.com>
+
+Index: linux-2.6.19/fs/squashfs/Makefile
+===================================================================
+--- linux-2.6.19.orig/fs/squashfs/Makefile
++++ linux-2.6.19/fs/squashfs/Makefile
+@@ -5,3 +5,6 @@
+ obj-$(CONFIG_SQUASHFS) += squashfs.o
+ squashfs-y += inode.o
+ squashfs-y += squashfs2_0.o
++
++CFLAGS_squashfs2_0.o = "-O2"
++CFLAGS_inode.o = "-O2"
diff --git a/packages/linux/linux-openmoko/0004-squashfs-Kconfig.patch b/packages/linux/linux-openmoko/0004-squashfs-Kconfig.patch
new file mode 100644
index 0000000000..f2b3db9942
--- /dev/null
+++ b/packages/linux/linux-openmoko/0004-squashfs-Kconfig.patch
@@ -0,0 +1,61 @@
+diff -urN linux-2.6.23/fs/Kconfig linux-2.6.23.sqlzma-ng/fs/Kconfig
+--- linux-2.6.23/fs/Kconfig	2007-10-09 16:31:38.000000000 -0400
++++ linux-2.6.23.sqlzma-ng/fs/Kconfig	2007-11-13 18:58:41.000000000 -0500
+@@ -1364,6 +1364,56 @@
+ 
+ 	  If unsure, say N.
+ 
++config SQUASHFS
++	tristate "SquashFS 3.3 - Squashed file system support"
++	select ZLIB_INFLATE
++	help
++	  Saying Y here includes support for SquashFS 3.3 (a Compressed
++	  Read-Only File System).  Squashfs is a highly compressed read-only
++	  filesystem for Linux.  It uses zlib compression to compress both
++	  files, inodes and directories.  Inodes in the system are very small
++	  and all blocks are packed to minimise data overhead. Block sizes
++	  greater than 4K are supported up to a maximum of 1 Mbytes (default
++	  block size 128K).  SquashFS 3.3 supports 64 bit filesystems and files
++	  (larger than 4GB), full uid/gid information, hard links and timestamps.  
++
++	  Squashfs is intended for general read-only filesystem use, for
++	  archival use (i.e. in cases where a .tar.gz file may be used), and in
++	  embedded systems where low overhead is needed.  Further information
++	  and filesystem tools are available from http://squashfs.sourceforge.net.
++
++	  If you want to compile this as a module ( = code which can be
++	  inserted in and removed from the running kernel whenever you want),
++	  say M here and read <file:Documentation/modules.txt>.  The module
++	  will be called squashfs.  Note that the root file system (the one
++	  containing the directory /) cannot be compiled as a module.
++
++	  If unsure, say N.
++
++config SQUASHFS_EMBEDDED
++
++	bool "Additional option for memory-constrained systems" 
++	depends on SQUASHFS
++	default n
++	help
++	  Saying Y here allows you to specify cache size.
++
++	  If unsure, say N.
++
++config SQUASHFS_FRAGMENT_CACHE_SIZE
++	int "Number of fragments cached" if SQUASHFS_EMBEDDED
++	depends on SQUASHFS
++	default "3"
++	help
++	  By default SquashFS caches the last 3 fragments read from
++	  the filesystem.  Increasing this amount may mean SquashFS
++	  has to re-read fragments less often from disk, at the expense
++	  of extra system memory.  Decreasing this amount will mean
++	  SquashFS uses less memory at the expense of extra reads from disk.
++
++	  Note there must be at least one cached fragment.  Anything
++	  much more than three will probably not make much difference.
++
+ config VXFS_FS
+ 	tristate "FreeVxFS file system support (VERITAS VxFS(TM) compatible)"
+ 	depends on BLOCK
+
diff --git a/packages/linux/linux-openmoko/0005-squashfs-Makefile.patch b/packages/linux/linux-openmoko/0005-squashfs-Makefile.patch
new file mode 100644
index 0000000000..b0ec4cebb8
--- /dev/null
+++ b/packages/linux/linux-openmoko/0005-squashfs-Makefile.patch
@@ -0,0 +1,12 @@
+diff -urN linux-2.6.24/fs/Makefile linux-2.6.24.sqlzma-ng/fs/Makefile
+--- linux-2.6.24/fs/Makefile	2007-11-13 21:24:14.000000000 -0500
++++ linux-2.6.24.sqlzma-ng/fs/Makefile	2007-11-13 21:19:15.000000000 -0500
+@@ -72,6 +72,7 @@
+ obj-$(CONFIG_JBD2)		+= jbd2/
+ obj-$(CONFIG_EXT2_FS)		+= ext2/
+ obj-$(CONFIG_CRAMFS)		+= cramfs/
++obj-$(CONFIG_SQUASHFS)		+= squashfs/
+ obj-y				+= ramfs/
+ obj-$(CONFIG_HUGETLBFS)		+= hugetlbfs/
+ obj-$(CONFIG_CODA_FS)		+= coda/
+