SOURCES: squashfs_lzma-module.patch (NEW) - squashfs with lzma com...
sparky
sparky at pld-linux.org
Fri Dec 9 23:15:33 CET 2005
Author: sparky Date: Fri Dec 9 22:15:33 2005 GMT
Module: SOURCES Tag: HEAD
---- Log message:
- squashfs with lzma compression module sources: taken squashfs2.2-patch
from kernel, applied
http://www.beyondlogic.org/nb5/linux-2.6.12.2_squashfs2.2_lzma.patch
and everything a little reworked so it can be built outside kernel tree
and can coexist with normal squashfs module
---- Files affected:
SOURCES:
squashfs_lzma-module.patch (NONE -> 1.1) (NEW)
---- Diffs:
================================================================
Index: SOURCES/squashfs_lzma-module.patch
diff -u /dev/null SOURCES/squashfs_lzma-module.patch:1.1
--- /dev/null Fri Dec 9 23:15:33 2005
+++ SOURCES/squashfs_lzma-module.patch Fri Dec 9 23:15:28 2005
@@ -0,0 +1,3345 @@
+diff -Nur /dev/null squashfs/inode.c
+--- /dev/null 1970-01-01 01:00:00.000000000 +0100
++++ squashfs/inode.c 2005-12-09 20:41:33.000000000 +0100
+@@ -0,0 +1,1844 @@
++/*
++ * Squashfs - a compressed read only filesystem for Linux
++ *
++ * Copyright (c) 2002, 2003, 2004, 2005 Phillip Lougher <phillip at 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
++ */
++
++#define SQUASHFS_LZMA
++
++#define SQUASHFS_1_0_COMPATIBILITY
++
++#include <linux/types.h>
++#include "squashfs_fs.h"
++#include <linux/module.h>
++#include <linux/errno.h>
++#include <linux/slab.h>
++#include <linux/fs.h>
++#include <linux/smp_lock.h>
++#include <linux/slab.h>
++#include "squashfs_fs_sb.h"
++#include "squashfs_fs_i.h"
++#include <linux/buffer_head.h>
++#include <linux/vfs.h>
++#include <linux/init.h>
++#include <linux/dcache.h>
++#include <asm/uaccess.h>
++#include <linux/wait.h>
++#include <asm/semaphore.h>
++
++#ifdef SQUASHFS_LZMA
++#include "LzmaWrapper.h"
++#else
++#include <linux/zlib.h>
++#endif
++
++#include <linux/blkdev.h>
++#include <linux/vmalloc.h>
++
++#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...) if(!silent) printk(KERN_ERR "SQUASHFS error: "s, ## args)
++#define WARNING(s, args...) printk(KERN_WARNING "SQUASHFS: "s, ## args)
++
++static void squashfs_put_super(struct super_block *);
++static int squashfs_statfs(struct super_block *, struct kstatfs *);
++static int squashfs_symlink_readpage(struct file *file, struct page *page);
++static int squashfs_readpage(struct file *file, struct page *page);
++static int squashfs_readpage4K(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 unsigned int read_data(struct super_block *s, char *buffer,
++ unsigned int index, unsigned int length, unsigned int *next_index);
++static int squashfs_get_cached_block(struct super_block *s, char *buffer,
++ unsigned int block, unsigned int offset, int length,
++ unsigned int *next_block, unsigned int *next_offset);
++static struct inode *squashfs_iget(struct super_block *s, squashfs_inode inode);
++static unsigned int read_blocklist(struct inode *inode, int index, int readahead_blks,
++ char *block_list, unsigned short **block_p, unsigned int *bsize);
++static void squashfs_put_super(struct super_block *s);
++static struct super_block *squashfs_get_sb(struct file_system_type *, int, const char *, void *);
++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);
++
++#ifdef SQUASHFS_1_0_COMPATIBILITY
++static int squashfs_readpage_lessthan4K(struct file *file, struct page *page);
++static struct inode *squashfs_iget_1(struct super_block *s, squashfs_inode inode);
++static unsigned int read_blocklist_1(struct inode *inode, int index, int readahead_blks,
++ char *block_list, unsigned short **block_p, unsigned int *bsize);
++#endif
++
++DECLARE_MUTEX(read_data_mutex);
++
++#ifdef SQUASHFS_LZMA
++static char *lzma_data;
++#else
++static z_stream stream;
++#endif
++
++static struct file_system_type squashfs_fs_type = {
++ .owner = THIS_MODULE,
++ .name = "squashfs_lzma",
++ .get_sb = squashfs_get_sb,
++ .kill_sb = kill_block_super,
++ .fs_flags = FS_REQUIRES_DEV
++ };
++
++static 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_ops = {
++ .alloc_inode = squashfs_alloc_inode,
++ .destroy_inode = squashfs_destroy_inode,
++ .statfs = squashfs_statfs,
++ .put_super = squashfs_put_super,
++};
++
++static struct address_space_operations squashfs_symlink_aops = {
++ .readpage = squashfs_symlink_readpage
++};
++
++static struct address_space_operations squashfs_aops = {
++ .readpage = squashfs_readpage
++};
++
++static struct address_space_operations squashfs_aops_4K = {
++ .readpage = squashfs_readpage4K
++};
++
++#ifdef SQUASHFS_1_0_COMPATIBILITY
++static struct address_space_operations squashfs_aops_lessthan4K = {
++ .readpage = squashfs_readpage_lessthan4K
++};
++#endif
++
++static struct file_operations squashfs_dir_ops = {
++ .read = generic_read_dir,
++ .readdir = squashfs_readdir
++};
++
++static struct inode_operations squashfs_dir_inode_ops = {
++ .lookup = squashfs_lookup
++};
++
++
++static inline struct squashfs_inode_info *SQUASHFS_I(struct inode *inode)
++{
++ return list_entry(inode, struct squashfs_inode_info, vfs_inode);
++}
++
++
++static struct buffer_head *get_block_length(struct super_block *s,
++ int *cur_index, int *offset, int *c_byte)
++{
++ 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;
++}
++
++
++static unsigned int read_data(struct super_block *s, char *buffer,
++ unsigned int index, unsigned int length, unsigned int *next_index)
++{
++ squashfs_sb_info *msBlk = (squashfs_sb_info *)s->s_fs_info;
++ struct buffer_head *bh[((SQUASHFS_FILE_MAX_SIZE - 1) >> msBlk->devblksize_log2) + 2];
++ unsigned int offset = index & ((1 << msBlk->devblksize_log2) - 1);
++ unsigned int cur_index = index >> msBlk->devblksize_log2;
++ int bytes, avail_bytes, b = 0, k;
++ char *c_buffer;
++ unsigned int compressed;
++ unsigned int c_byte = length;
++
++ if(c_byte) {
++ bytes = msBlk->devblksize - offset;
++ compressed = SQUASHFS_COMPRESSED_BLOCK(c_byte);
++ c_buffer = compressed ? msBlk->read_data : buffer;
++ c_byte = SQUASHFS_COMPRESSED_SIZE_BLOCK(c_byte);
++
++ TRACE("Block @ 0x%x, %scompressed size %d\n", index, compressed ? "" : "un", (unsigned int) c_byte);
++
++ if(!(bh[0] = sb_getblk(s, cur_index)))
++ goto block_release;
++ for(b = 1; bytes < c_byte; b++) {
++ if(!(bh[b] = sb_getblk(s, ++cur_index)))
++ goto block_release;
++ bytes += msBlk->devblksize;
++ }
++ ll_rw_block(READ, b, bh);
++ } else {
++ if(!(bh[0] = get_block_length(s, &cur_index, &offset, &c_byte)))
++ goto read_failure;
++
++ bytes = msBlk->devblksize - offset;
++ compressed = SQUASHFS_COMPRESSED(c_byte);
++ c_buffer = compressed ? msBlk->read_data : buffer;
++ c_byte = SQUASHFS_COMPRESSED_SIZE(c_byte);
++
++ TRACE("Block @ 0x%x, %scompressed size %d\n", index, compressed ? "" : "un", (unsigned int) c_byte);
++
++ for(b = 1; bytes < c_byte; b++) {
++ if(!(bh[b] = sb_getblk(s, ++cur_index)))
++ goto block_release;
++ bytes += msBlk->devblksize;
++ }
++ ll_rw_block(READ, b - 1, bh + 1);
++ }
++
++ if(compressed)
++ down(&read_data_mutex);
++
++ for(bytes = 0, k = 0; k < b; k++) {
++ avail_bytes = (c_byte - bytes) > (msBlk->devblksize - offset) ? msBlk->devblksize - offset : c_byte - bytes;
++ wait_on_buffer(bh[k]);
++ if (!buffer_uptodate(bh[k]))
++ goto block_release;
++ memcpy(c_buffer + bytes, bh[k]->b_data + offset, avail_bytes);
++ bytes += avail_bytes;
++ offset = 0;
++ brelse(bh[k]);
++ }
++
++ /*
++ * uncompress block
++ */
++ if(compressed) {
++#ifdef SQUASHFS_LZMA
++ int out_size;
++ int lzma_err;
++ int i;
++ out_size=msBlk->read_size;
++
++ if((lzma_err=lzma_inflate(c_buffer, c_byte, buffer, &out_size))){
++ ERROR("lzma returned unexpected result 0x%x\n", lzma_err);
++ bytes = 0;
++ } else
++ bytes = out_size;
++// printk("out size = %d, processed = %d\n", msBlk->read_size, out_size);
++#else
++ int zlib_err;
++
++ stream.next_in = c_buffer;
++ stream.avail_in = c_byte;
++ stream.next_out = buffer;
++ stream.avail_out = msBlk->read_size;
++ if(((zlib_err = zlib_inflateInit(&stream)) != Z_OK) ||
++ ((zlib_err = zlib_inflate(&stream, Z_FINISH)) != Z_STREAM_END) ||
++ ((zlib_err = zlib_inflateEnd(&stream)) != Z_OK)) {
++ ERROR("zlib_fs returned unexpected result 0x%x\n", zlib_err);
++ bytes = 0;
++ } else
++ bytes = stream.total_out;
++#endif
++ up(&read_data_mutex);
++ }
++
++ if(next_index)
++ *next_index = index + c_byte + (length ? 0 : (SQUASHFS_CHECK_DATA(msBlk->sBlk.flags) ? 3 : 2));
++
++ return bytes;
++
++block_release:
++ while(--b >= 0) brelse(bh[b]);
++
++read_failure:
++ ERROR("sb_bread failed reading block 0x%x\n", cur_index);
++ return 0;
++}
++
++
++static int squashfs_get_cached_block(struct super_block *s, char *buffer,
++ unsigned int block, unsigned int offset, int length,
++ unsigned int *next_block, unsigned int *next_offset)
++{
++ squashfs_sb_info *msBlk = (squashfs_sb_info *)s->s_fs_info;
++ int n, i, bytes, return_length = length;
++ unsigned int next_index;
++
++ TRACE("Entered squashfs_get_cached_block [%x:%x]\n", block, offset);
++
++ for(;;) {
++ for(i = 0; i < SQUASHFS_CACHED_BLKS; i++)
++ if(msBlk->block_cache[i].block == block)
++ break;
++
++ down(&msBlk->block_cache_mutex);
++ if(i == SQUASHFS_CACHED_BLKS) {
++ /* read inode header block */
++ for(i = msBlk->next_cache, n = SQUASHFS_CACHED_BLKS; n ; n --, i = (i + 1) % SQUASHFS_CACHED_BLKS)
++ if(msBlk->block_cache[i].block != SQUASHFS_USED_BLK)
++ break;
++ if(n == 0) {
++ wait_queue_t wait;
++
++ init_waitqueue_entry(&wait, current);
++ add_wait_queue(&msBlk->waitq, &wait);
++ up(&msBlk->block_cache_mutex);
++ set_current_state(TASK_UNINTERRUPTIBLE);
++ schedule();
++ set_current_state(TASK_RUNNING);
++ remove_wait_queue(&msBlk->waitq, &wait);
++ continue;
++ }
++ msBlk->next_cache = (i + 1) % SQUASHFS_CACHED_BLKS;
++
++ if(msBlk->block_cache[i].block == SQUASHFS_INVALID_BLK) {
++ if(!(msBlk->block_cache[i].data = (unsigned char *)
++ kmalloc(SQUASHFS_METADATA_SIZE, GFP_KERNEL))) {
++ ERROR("Failed to allocate cache block\n");
++ up(&msBlk->block_cache_mutex);
++ return 0;
++ }
++ }
++
++ msBlk->block_cache[i].block = SQUASHFS_USED_BLK;
++ up(&msBlk->block_cache_mutex);
++ if(!(msBlk->block_cache[i].length = read_data(s, msBlk->block_cache[i].data, block, 0,
++ &next_index))) {
++ ERROR("Unable to read cache block [%x:%x]\n", block, offset);
++ return 0;
++ }
++ down(&msBlk->block_cache_mutex);
++ wake_up(&msBlk->waitq);
++ msBlk->block_cache[i].block = block;
++ msBlk->block_cache[i].next_index = next_index;
++ TRACE("Read cache block [%x:%x]\n", block, offset);
++ }
++
++ if(msBlk->block_cache[i].block != block) {
++ up(&msBlk->block_cache_mutex);
++ continue;
++ }
++
++ if((bytes = msBlk->block_cache[i].length - offset) >= 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;
++ }
++
++ up(&msBlk->block_cache_mutex);
++ return return_length;
++ } else {
++ if(buffer) {
++ memcpy(buffer, msBlk->block_cache[i].data + offset, bytes);
++ buffer += bytes;
++ }
++ block = msBlk->block_cache[i].next_index;
++ up(&msBlk->block_cache_mutex);
++ length -= bytes;
++ offset = 0;
++ }
++ }
++}
++
++
++static int get_fragment_location(struct super_block *s, unsigned int fragment, unsigned int *fragment_start_block, unsigned int *fragment_size)
++{
++ squashfs_sb_info *msBlk = (squashfs_sb_info *)s->s_fs_info;
++ unsigned int start_block = msBlk->fragment_index[SQUASHFS_FRAGMENT_INDEX(fragment)];
++ int offset = SQUASHFS_FRAGMENT_INDEX_OFFSET(fragment);
++ squashfs_fragment_entry fragment_entry;
++
++ if(msBlk->swap) {
++ squashfs_fragment_entry sfragment_entry;
++
++ if(!squashfs_get_cached_block(s, (char *) &sfragment_entry, start_block, offset,
++ sizeof(sfragment_entry), &start_block, &offset))
++ return 0;
++ SQUASHFS_SWAP_FRAGMENT_ENTRY(&fragment_entry, &sfragment_entry);
++ } else
++ if(!squashfs_get_cached_block(s, (char *) &fragment_entry, start_block, offset,
++ sizeof(fragment_entry), &start_block, &offset))
++ return 0;
++
++ *fragment_start_block = fragment_entry.start_block;
++ *fragment_size = fragment_entry.size;
++
++ return 1;
++}
++
++
++void release_cached_fragment(squashfs_sb_info *msBlk, struct squashfs_fragment_cache *fragment)
++{
++ down(&msBlk->fragment_mutex);
++ fragment->locked --;
++ wake_up(&msBlk->fragment_wait_queue);
++ up(&msBlk->fragment_mutex);
++}
++
++
++struct squashfs_fragment_cache *get_cached_fragment(struct super_block *s, unsigned int start_block, int length)
++{
++ int i, n;
++ squashfs_sb_info *msBlk = (squashfs_sb_info *)s->s_fs_info;
++
++ for(;;) {
++ down(&msBlk->fragment_mutex);
++ for(i = 0; i < SQUASHFS_CACHED_FRAGMENTS && msBlk->fragment[i].block != start_block; i++);
++ if(i == SQUASHFS_CACHED_FRAGMENTS) {
++ for(i = msBlk->next_fragment, n = SQUASHFS_CACHED_FRAGMENTS;
++ n && msBlk->fragment[i].locked; n--, i = (i + 1) % SQUASHFS_CACHED_FRAGMENTS);
++
++ if(n == 0) {
++ wait_queue_t wait;
++
++ init_waitqueue_entry(&wait, current);
++ add_wait_queue(&msBlk->fragment_wait_queue, &wait);
++ up(&msBlk->fragment_mutex);
++ set_current_state(TASK_UNINTERRUPTIBLE);
++ schedule();
++ set_current_state(TASK_RUNNING);
++ remove_wait_queue(&msBlk->fragment_wait_queue, &wait);
++ continue;
++ }
++ msBlk->next_fragment = (msBlk->next_fragment + 1) % SQUASHFS_CACHED_FRAGMENTS;
++
++ if(msBlk->fragment[i].data == NULL)
++ if(!(msBlk->fragment[i].data = (unsigned char *)
++ SQUASHFS_ALLOC(SQUASHFS_FILE_MAX_SIZE))) {
++ ERROR("Failed to allocate fragment cache block\n");
++ up(&msBlk->fragment_mutex);
++ return NULL;
++ }
++
++ msBlk->fragment[i].block = SQUASHFS_INVALID_BLK;
++ msBlk->fragment[i].locked = 1;
++ up(&msBlk->fragment_mutex);
++ if(!(msBlk->fragment[i].length = read_data(s, msBlk->fragment[i].data, start_block, length,
++ NULL))) {
++ ERROR("Unable to read fragment cache block [%x]\n", start_block);
++ msBlk->fragment[i].locked = 0;
++ return NULL;
++ }
++ msBlk->fragment[i].block = start_block;
++ TRACE("New fragment %d, start block %d, locked %d\n", i, msBlk->fragment[i].block, msBlk->fragment[i].locked);
++ return &msBlk->fragment[i];
++ }
++
++ msBlk->fragment[i].locked ++;
++ up(&msBlk->fragment_mutex);
++
++ TRACE("Got fragment %d, start block %d, locked %d\n", i, msBlk->fragment[i].block, msBlk->fragment[i].locked);
++ return &msBlk->fragment[i];
++ }
++}
++
++
++#ifdef SQUASHFS_1_0_COMPATIBILITY
++static struct inode *squashfs_iget_1(struct super_block *s, squashfs_inode inode)
++{
++ struct inode *i = new_inode(s);
++ squashfs_sb_info *msBlk = (squashfs_sb_info *)s->s_fs_info;
++ 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 next_block, next_offset;
++ squashfs_base_inode_header_1 inodeb;
++
++ TRACE("Entered squashfs_iget_1\n");
++
++ if(msBlk->swap) {
++ squashfs_base_inode_header_1 sinodeb;
++
++ if(!squashfs_get_cached_block(s, (char *) &sinodeb, block, offset,
++ sizeof(sinodeb), &next_block, &next_offset))
++ goto failed_read;
++ SQUASHFS_SWAP_BASE_INODE_HEADER_1(&inodeb, &sinodeb, sizeof(sinodeb));
++ } else
++ if(!squashfs_get_cached_block(s, (char *) &inodeb, block, offset,
++ sizeof(inodeb), &next_block, &next_offset))
++ goto failed_read;
++
++ i->i_nlink = 1;
++
++ i->i_mtime.tv_sec = sBlk->mkfs_time;
++ i->i_atime.tv_sec = sBlk->mkfs_time;
++ i->i_ctime.tv_sec = sBlk->mkfs_time;
++
++ if(inodeb.inode_type != SQUASHFS_IPC_TYPE)
++ i->i_uid = msBlk->uid[((inodeb.inode_type - 1) / SQUASHFS_TYPES) * 16 + inodeb.uid];
++ i->i_ino = SQUASHFS_MK_VFS_INODE(block - sBlk->inode_table_start, offset);
++
++ i->i_mode = inodeb.mode;
++
++ switch(inodeb.inode_type == SQUASHFS_IPC_TYPE ? SQUASHFS_IPC_TYPE : (inodeb.inode_type - 1) % SQUASHFS_TYPES + 1) {
++ case SQUASHFS_FILE_TYPE: {
++ squashfs_reg_inode_header_1 inodep;
++
++ if(msBlk->swap) {
++ squashfs_reg_inode_header_1 sinodep;
++
++ if(!squashfs_get_cached_block(s, (char *) &sinodep, block, offset, sizeof(sinodep),
++ &next_block, &next_offset))
++ goto failed_read;
++ SQUASHFS_SWAP_REG_INODE_HEADER_1(&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_fop = &generic_ro_fops;
++ if(sBlk->block_size > 4096)
++ i->i_data.a_ops = &squashfs_aops;
++ else if(sBlk->block_size == 4096)
++ i->i_data.a_ops = &squashfs_aops_4K;
++ else
++ i->i_data.a_ops = &squashfs_aops_lessthan4K;
++ 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;
++ i->i_blksize = PAGE_CACHE_SIZE;
++ SQUASHFS_I(i)->u.s1.fragment_start_block = SQUASHFS_INVALID_BLK;
++ SQUASHFS_I(i)->u.s1.fragment_offset = 0;
++ SQUASHFS_I(i)->start_block = inodep.start_block;
++ SQUASHFS_I(i)->block_list_start = next_block;
++ SQUASHFS_I(i)->offset = next_offset;
++ TRACE("File inode %x:%x, start_block %x, block_list_start %x, offset %x\n",
++ SQUASHFS_INODE_BLK(inode), offset, inodep.start_block, next_block, next_offset);
++ break;
<<Diff was trimmed, longer than 597 lines>>
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