-diff --new-file -urp linux-2.6.12/fs/Kconfig linux-2.6.12-squashfs2.2/fs/Kconfig
---- linux-2.6.12/fs/Kconfig 2005-06-17 20:48:29.000000000 +0100
-+++ linux-2.6.12-squashfs2.2/fs/Kconfig 2005-07-04 02:35:35.000000000 +0100
-@@ -1171,6 +1171,69 @@ config CRAMFS
+diff -urN linux-2.6.21.1.old/fs/Kconfig linux-2.6.21.1.dev/fs/Kconfig
+--- linux-2.6.21.1.old/fs/Kconfig 2007-04-27 23:49:26.000000000 +0200
++++ linux-2.6.21.1.dev/fs/Kconfig 2007-05-26 19:00:37.121351760 +0200
+@@ -1371,6 +1371,71 @@
If unsure, say N.
+config SQUASHFS
-+ tristate "SquashFS 2.0 - Squashed file system support"
++ tristate "SquashFS 3.0 - Squashed file system support"
+ select ZLIB_INFLATE
+ help
-+ Saying Y here includes support for SquashFs 2.0 (Compressed Read-Only File
++ Saying Y here includes support for SquashFS 3.0 (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 64K.
++ SquashFS 3.0 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
+
+config SQUASHFS_EMBEDDED
+
-+ bool "Additional options for memory-constrained systems"
++ bool "Additional options for memory-constrained systems"
+ depends on SQUASHFS
+ default n
+ help
+
config VXFS_FS
tristate "FreeVxFS file system support (VERITAS VxFS(TM) compatible)"
- help
-diff --new-file -urp linux-2.6.12/fs/Makefile linux-2.6.12-squashfs2.2/fs/Makefile
---- linux-2.6.12/fs/Makefile 2005-06-17 20:48:29.000000000 +0100
-+++ linux-2.6.12-squashfs2.2/fs/Makefile 2005-07-04 02:35:35.000000000 +0100
-@@ -52,6 +52,7 @@ obj-$(CONFIG_EXT3_FS) += ext3/ # Before
- obj-$(CONFIG_JBD) += jbd/
+ depends on BLOCK
+diff -urN linux-2.6.21.1.old/fs/Makefile linux-2.6.21.1.dev/fs/Makefile
+--- linux-2.6.21.1.old/fs/Makefile 2007-04-27 23:49:26.000000000 +0200
++++ linux-2.6.21.1.dev/fs/Makefile 2007-05-26 19:00:37.121351760 +0200
+@@ -68,6 +68,7 @@
+ obj-$(CONFIG_JBD2) += jbd2/
obj-$(CONFIG_EXT2_FS) += ext2/
obj-$(CONFIG_CRAMFS) += cramfs/
+obj-$(CONFIG_SQUASHFS) += squashfs/
obj-$(CONFIG_RAMFS) += ramfs/
obj-$(CONFIG_HUGETLBFS) += hugetlbfs/
obj-$(CONFIG_CODA_FS) += coda/
-diff --new-file -urp linux-2.6.12/fs/squashfs/inode.c linux-2.6.12-squashfs2.2/fs/squashfs/inode.c
---- linux-2.6.12/fs/squashfs/inode.c 1970-01-01 01:00:00.000000000 +0100
-+++ linux-2.6.12-squashfs2.2/fs/squashfs/inode.c 2005-07-04 02:35:35.000000000 +0100
-@@ -0,0 +1,1803 @@
+diff -urN linux-2.6.21.1.old/fs/squashfs/inode.c linux-2.6.21.1.dev/fs/squashfs/inode.c
+--- linux-2.6.21.1.old/fs/squashfs/inode.c 1970-01-01 01:00:00.000000000 +0100
++++ linux-2.6.21.1.dev/fs/squashfs/inode.c 2007-05-26 19:00:37.123351456 +0200
+@@ -0,0 +1,2124 @@
+/*
+ * Squashfs - a compressed read only filesystem for Linux
+ *
-+ * Copyright (c) 2002, 2003, 2004, 2005 Phillip Lougher <phillip@lougher.demon.co.uk>
++ * Copyright (c) 2002, 2003, 2004, 2005, 2006
++ * Phillip Lougher <phillip@lougher.org.uk>
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * inode.c
+ */
+
-+#define SQUASHFS_1_0_COMPATIBILITY
-+
+#include <linux/types.h>
+#include <linux/squashfs_fs.h>
+#include <linux/module.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>
+#include <linux/zlib.h>
+#include <linux/blkdev.h>
+#include <linux/vmalloc.h>
++#include <asm/uaccess.h>
++#include <asm/semaphore.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)
++#include "squashfs.h"
+
+static void squashfs_put_super(struct super_block *);
-+static int squashfs_statfs(struct super_block *, struct kstatfs *);
++static int squashfs_statfs(struct dentry *, 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);
++static struct dentry *squashfs_lookup(struct inode *, struct dentry *,
++ struct nameidata *);
++static struct inode *squashfs_iget(struct super_block *s, squashfs_inode_t inode);
++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_get_sb(struct file_system_type *, int,
++ const char *, void *, struct vfsmount *);
+
-+#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);
+
+static z_stream stream;
+
+ .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
+ .put_super = squashfs_put_super,
+};
+
-+static struct address_space_operations squashfs_symlink_aops = {
++SQSH_EXTERN struct address_space_operations squashfs_symlink_aops = {
+ .readpage = squashfs_symlink_readpage
+};
+
-+static struct address_space_operations squashfs_aops = {
++SQSH_EXTERN struct address_space_operations squashfs_aops = {
+ .readpage = squashfs_readpage
+};
+
-+static struct address_space_operations squashfs_aops_4K = {
++SQSH_EXTERN 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 = {
++SQSH_EXTERN 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;
++ struct squashfs_sb_info *msblk = s->s_fs_info;
+ unsigned short temp;
+ struct buffer_head *bh;
+
+ goto out;
+ if (msblk->swap)
+ ((unsigned char *) &temp)[0] = *((unsigned char *)
-+ bh->b_data);
++ bh->b_data);
+ else
+ ((unsigned char *) &temp)[1] = *((unsigned char *)
-+ bh->b_data);
++ bh->b_data);
+ *c_byte = temp;
+ *offset = 1;
+ } else {
+ ((unsigned char *) &temp)[1] = *((unsigned char *)
+ (bh->b_data + *offset));
+ ((unsigned char *) &temp)[0] = *((unsigned char *)
-+ (bh->b_data + *offset + 1));
++ (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));
++ (bh->b_data + *offset + 1));
+ }
+ *c_byte = temp;
+ *offset += 2;
+ }
+
-+ if (SQUASHFS_CHECK_DATA(msblk->sBlk.flags)) {
++ if (SQUASHFS_CHECK_DATA(msblk->sblk.flags)) {
+ if (*offset == msblk->devblksize) {
+ brelse(bh);
+ if (!(bh = sb_bread(s, ++(*cur_index))))
+}
+
+
-+static unsigned int read_data(struct super_block *s, char *buffer,
-+ unsigned int index, unsigned int length, unsigned int *next_index)
++SQSH_EXTERN unsigned int squashfs_read_data(struct super_block *s, char *buffer,
++ long long index, unsigned int length,
++ long long *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;
++ struct squashfs_sb_info *msblk = 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;
++ if (c_byte) {
++ bytes = msblk->devblksize - offset;
+ compressed = SQUASHFS_COMPRESSED_BLOCK(c_byte);
-+ c_buffer = compressed ? msBlk->read_data : buffer;
++ 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);
++ TRACE("Block @ 0x%llx, %scompressed size %d\n", index, compressed
++ ? "" : "un", (unsigned int) c_byte);
+
-+ if(!(bh[0] = sb_getblk(s, cur_index)))
++ 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)))
++
++ for (b = 1; bytes < c_byte; b++) {
++ if (!(bh[b] = sb_getblk(s, ++cur_index)))
+ goto block_release;
-+ bytes += msBlk->devblksize;
++ bytes += msblk->devblksize;
+ }
+ ll_rw_block(READ, b, bh);
+ } else {
-+ if(!(bh[0] = get_block_length(s, &cur_index, &offset, &c_byte)))
++ if (!(bh[0] = get_block_length(s, &cur_index, &offset,
++ &c_byte)))
+ goto read_failure;
+
-+ bytes = msBlk->devblksize - offset;
++ bytes = msblk->devblksize - offset;
+ compressed = SQUASHFS_COMPRESSED(c_byte);
-+ c_buffer = compressed ? msBlk->read_data : buffer;
++ 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);
++ TRACE("Block @ 0x%llx, %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)))
++ for (b = 1; bytes < c_byte; b++) {
++ if (!(bh[b] = sb_getblk(s, ++cur_index)))
+ goto block_release;
-+ bytes += msBlk->devblksize;
++ bytes += msblk->devblksize;
+ }
+ ll_rw_block(READ, b - 1, bh + 1);
+ }
+
-+ if(compressed)
-+ down(&read_data_mutex);
++ if (compressed)
++ down(&msblk->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;
++ 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;
+ /*
+ * uncompress block
+ */
-+ if(compressed) {
++ if (compressed) {
+ 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);
++ 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;
-+ up(&read_data_mutex);
-+ }
+
-+ if(next_index)
-+ *next_index = index + c_byte + (length ? 0 : (SQUASHFS_CHECK_DATA(msBlk->sBlk.flags) ? 3 : 2));
++ up(&msblk->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]);
++ while (--b >= 0)
++ brelse(bh[b]);
+
+read_failure:
+ ERROR("sb_bread failed reading block 0x%x\n", cur_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)
++SQSH_EXTERN int squashfs_get_cached_block(struct super_block *s, char *buffer,
++ long long block, unsigned int offset,
++ int length, long long *next_block,
++ unsigned int *next_offset)
+{
-+ squashfs_sb_info *msBlk = (squashfs_sb_info *)s->s_fs_info;
++ struct squashfs_sb_info *msblk = s->s_fs_info;
+ int n, i, bytes, return_length = length;
-+ unsigned int next_index;
++ long long next_index;
++
++ TRACE("Entered squashfs_get_cached_block [%llx:%x]\n", block, offset);
+
-+ TRACE("Entered squashfs_get_cached_block [%x:%x]\n", block, offset);
++ while ( 1 ) {
++ for (i = 0; i < SQUASHFS_CACHED_BLKS; i++)
++ if (msblk->block_cache[i].block == block)
++ break;
+
-+ 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) {
++ 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)
++ 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) {
++
++ if (n == 0) {
+ wait_queue_t wait;
+
+ init_waitqueue_entry(&wait, current);
-+ add_wait_queue(&msBlk->waitq, &wait);
-+ up(&msBlk->block_cache_mutex);
++ add_wait_queue(&msblk->waitq, &wait);
+ set_current_state(TASK_UNINTERRUPTIBLE);
++ up(&msblk->block_cache_mutex);
+ schedule();
+ set_current_state(TASK_RUNNING);
-+ remove_wait_queue(&msBlk->waitq, &wait);
++ 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->next_cache = (i + 1) % SQUASHFS_CACHED_BLKS;
++
++ if (msblk->block_cache[i].block ==
++ SQUASHFS_INVALID_BLK) {
++ if (!(msblk->block_cache[i].data =
++ kmalloc(SQUASHFS_METADATA_SIZE,
++ GFP_KERNEL))) {
++ ERROR("Failed to allocate cache"
++ "block\n");
++ up(&msblk->block_cache_mutex);
++ goto out;
+ }
+ }
-+
-+ 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;
++
++ msblk->block_cache[i].block = SQUASHFS_USED_BLK;
++ up(&msblk->block_cache_mutex);
++
++ if (!(msblk->block_cache[i].length =
++ squashfs_read_data(s,
++ msblk->block_cache[i].data,
++ block, 0, &next_index))) {
++ ERROR("Unable to read cache block [%llx:%x]\n",
++ block, offset);
++ goto out;
+ }
-+ 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);
++
++ 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 [%llx:%x]\n", block, offset);
+ }
+
-+ if(msBlk->block_cache[i].block != block) {
-+ up(&msBlk->block_cache_mutex);
++ 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;
++ 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;
++ up(&msblk->block_cache_mutex);
++ goto finish;
+ } else {
-+ if(buffer) {
-+ memcpy(buffer, msBlk->block_cache[i].data + offset, bytes);
++ 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);
++ block = msblk->block_cache[i].next_index;
++ up(&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, unsigned int *fragment_start_block, unsigned int *fragment_size)
++static int get_fragment_location(struct super_block *s, unsigned int fragment,
++ long long *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)];
++ 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);
-+ squashfs_fragment_entry fragment_entry;
++ struct squashfs_fragment_entry fragment_entry;
+
-+ if(msBlk->swap) {
-+ squashfs_fragment_entry sfragment_entry;
++ if (msblk->swap) {
++ struct 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;
++ if (!squashfs_get_cached_block(s, (char *) &sfragment_entry,
++ start_block, offset,
++ sizeof(sfragment_entry), &start_block,
++ &offset))
++ goto out;
+ 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;
++ 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;
+}
+
+
-+void release_cached_fragment(squashfs_sb_info *msBlk, struct squashfs_fragment_cache *fragment)
++SQSH_EXTERN void release_cached_fragment(struct squashfs_sb_info *msblk, struct
++ squashfs_fragment_cache *fragment)
+{
-+ down(&msBlk->fragment_mutex);
++ down(&msblk->fragment_mutex);
+ fragment->locked --;
-+ wake_up(&msBlk->fragment_wait_queue);
-+ up(&msBlk->fragment_mutex);
++ 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)
++SQSH_EXTERN struct squashfs_fragment_cache *get_cached_fragment(struct super_block
++ *s, long long start_block,
++ int length)
+{
+ int i, n;
-+ squashfs_sb_info *msBlk = (squashfs_sb_info *)s->s_fs_info;
++ struct squashfs_sb_info *msblk = s->s_fs_info;
++
++ while ( 1 ) {
++ down(&msblk->fragment_mutex);
++
++ for (i = 0; i < SQUASHFS_CACHED_FRAGMENTS &&
++ msblk->fragment[i].block != start_block; i++);
+
-+ 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 (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) {
++ if (n == 0) {
+ wait_queue_t wait;
+
+ init_waitqueue_entry(&wait, current);
-+ add_wait_queue(&msBlk->fragment_wait_queue, &wait);
-+ up(&msBlk->fragment_mutex);
++ add_wait_queue(&msblk->fragment_wait_queue,
++ &wait);
+ set_current_state(TASK_UNINTERRUPTIBLE);
++ up(&msblk->fragment_mutex);
+ schedule();
+ set_current_state(TASK_RUNNING);
-+ remove_wait_queue(&msBlk->fragment_wait_queue, &wait);
++ 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->next_fragment = (msblk->next_fragment + 1) %
++ SQUASHFS_CACHED_FRAGMENTS;
++
++ if (msblk->fragment[i].data == NULL)
++ if (!(msblk->fragment[i].data = SQUASHFS_ALLOC
++ (SQUASHFS_FILE_MAX_SIZE))) {
++ ERROR("Failed to allocate fragment "
++ "cache block\n");
++ up(&msblk->fragment_mutex);
++ goto out;
+ }
+
-+ 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;
++ msblk->fragment[i].block = SQUASHFS_INVALID_BLK;
++ msblk->fragment[i].locked = 1;
++ up(&msblk->fragment_mutex);
+
-+ 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;
-+ }
-+ case SQUASHFS_DIR_TYPE: {
-+ squashfs_dir_inode_header_1 inodep;
-+
-+ if(msBlk->swap) {
-+ squashfs_dir_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_DIR_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;
++ if (!(msblk->fragment[i].length = squashfs_read_data(s,
++ msblk->fragment[i].data,
++ start_block, length, NULL))) {
++ ERROR("Unable to read fragment cache block "
++ "[%llx]\n", start_block);
++ msblk->fragment[i].locked = 0;
++ goto out;
++ }
+
-+ i->i_size = inodep.file_size;
-+ i->i_op = &squashfs_dir_inode_ops;
-+ i->i_fop = &squashfs_dir_ops;
-+ 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;
-+ TRACE("Directory inode %x:%x, start_block %x, offset %x\n", SQUASHFS_INODE_BLK(inode), offset,
-+ inodep.start_block, inodep.offset);
++ 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);
+ break;
+ }
-+ case SQUASHFS_SYMLINK_TYPE: {
-+ squashfs_symlink_inode_header_1 inodep;
-+
-+ if(msBlk->swap) {
-+ squashfs_symlink_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_SYMLINK_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.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 %x, offset %x\n",
-+ SQUASHFS_INODE_BLK(inode), offset, next_block, next_offset);
-+ break;
-+ }
-+ case SQUASHFS_BLKDEV_TYPE:
-+ case SQUASHFS_CHRDEV_TYPE: {
-+ squashfs_dev_inode_header_1 inodep;
+
-+ if(msBlk->swap) {
-+ squashfs_dev_inode_header_1 sinodep;
++ msblk->fragment[i].locked++;
++ up(&msblk->fragment_mutex);
++ TRACE("Got fragment %d, start block %lld, locked %d\n", i,
++ msblk->fragment[i].block,
++ msblk->fragment[i].locked);
++ break;
++ }
+
-+ if(!squashfs_get_cached_block(s, (char *) &sinodep, block, offset, sizeof(sinodep),
-+ &next_block, &next_offset))
-+ goto failed_read;
-+ SQUASHFS_SWAP_DEV_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;
++ return &msblk->fragment[i];
+
-+ i->i_size = 0;
-+ 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_IPC_TYPE: {
-+ squashfs_ipc_inode_header_1 inodep;
++out:
++ return NULL;
++}
+
-+ if(msBlk->swap) {
-+ squashfs_ipc_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_IPC_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;
++static struct inode *squashfs_new_inode(struct super_block *s,
++ struct squashfs_base_inode_header *inodeb)
++{
++ struct squashfs_sb_info *msblk = s->s_fs_info;
++ struct inode *i = new_inode(s);
+
-+ i->i_size = 0;
-+ i->i_mode |= (inodep.type == SQUASHFS_FIFO_TYPE) ? S_IFIFO : S_IFSOCK;
-+ i->i_uid = msBlk->uid[inodep.offset * 16 + inodeb.uid];
-+ 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;
++ if (i) {
++ 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];
+ }
-+
-+ if(inodeb.guid == 15)
-+ i->i_gid = i->i_uid;
-+ else
-+ i->i_gid = msBlk->guid[inodeb.guid];
+
-+ insert_inode_hash(i);
+ return i;
-+
-+failed_read:
-+ ERROR("Unable to read inode [%x:%x]\n", block, offset);
-+
-+failed_read1:
-+ return NULL;
+}
-+#endif
+
+
-+static struct inode *squashfs_iget(struct super_block *s, squashfs_inode inode)
++static struct inode *squashfs_iget(struct super_block *s, squashfs_inode_t 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;
++ struct inode *i;
++ 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);
-+ unsigned int next_block, next_offset;
-+ squashfs_base_inode_header inodeb;
++ 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_iget\n");
+
-+ if(msBlk->swap) {
-+ squashfs_base_inode_header sinodeb;
-+
-+ if(!squashfs_get_cached_block(s, (char *) &sinodeb, block, offset,
-+ sizeof(sinodeb), &next_block, &next_offset))
++ 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(&inodeb, &sinodeb, sizeof(sinodeb));
++ SQUASHFS_SWAP_BASE_INODE_HEADER(inodeb, sinodeb,
++ sizeof(*sinodeb));
+ } else
-+ if(!squashfs_get_cached_block(s, (char *) &inodeb, block, offset,
-+ sizeof(inodeb), &next_block, &next_offset))
++ 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;
-+
-+ i->i_uid = msBlk->uid[inodeb.uid];
-+ i->i_ino = SQUASHFS_MK_VFS_INODE(block - sBlk->inode_table_start, offset);
-+
-+ i->i_mode = inodeb.mode;
-+
-+ switch(inodeb.inode_type) {
++ switch(inodeb->inode_type) {
+ case SQUASHFS_FILE_TYPE: {
-+ squashfs_reg_inode_header inodep;
-+
-+ if(msBlk->swap) {
-+ squashfs_reg_inode_header sinodep;
-+
-+ if(!squashfs_get_cached_block(s, (char *) &sinodep, block, offset, sizeof(sinodep),
-+ &next_block, &next_offset))
++ 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, (char *)
++ sinodep, block, offset,
++ sizeof(*sinodep), &next_block,
++ &next_offset))
+ goto failed_read;
-+ SQUASHFS_SWAP_REG_INODE_HEADER(&inodep, &sinodep);
++ SQUASHFS_SWAP_REG_INODE_HEADER(inodep, sinodep);
+ } else
-+ if(!squashfs_get_cached_block(s, (char *) &inodep, block, offset, sizeof(inodep),
-+ &next_block, &next_offset))
++ if (!squashfs_get_cached_block(s, (char *)
++ inodep, block, offset,
++ sizeof(*inodep), &next_block,
++ &next_offset))
+ goto failed_read;
+
-+ SQUASHFS_I(i)->u.s1.fragment_start_block = SQUASHFS_INVALID_BLK;
-+ if(inodep.fragment != SQUASHFS_INVALID_BLK && !get_fragment_location(s, inodep.fragment,
-+ &SQUASHFS_I(i)->u.s1.fragment_start_block, &SQUASHFS_I(i)->u.s1.fragment_size))
++ frag_blk = SQUASHFS_INVALID_BLK;
++ if (inodep->fragment != SQUASHFS_INVALID_FRAG &&
++ !get_fragment_location(s,
++ inodep->fragment, &frag_blk, &frag_size))
+ goto failed_read;
+
-+ SQUASHFS_I(i)->u.s1.fragment_offset = inodep.offset;
-+ i->i_size = inodep.file_size;
++ if((i = squashfs_new_inode(s, inodeb)) == NULL)
++ goto failed_read1;
++
++ i->i_nlink = 1;
++ i->i_size = inodep->file_size;
+ i->i_fop = &generic_ro_fops;
-+ if(sBlk->block_size > 4096)
++ 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;
++ if (sblk->block_size > 4096)
+ i->i_data.a_ops = &squashfs_aops;
+ else
+ i->i_data.a_ops = &squashfs_aops_4K;
++
++ 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, (char *)
++ 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, (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(s,
++ inodep->fragment, &frag_blk, &frag_size))
++ goto failed_read;
++
++ if((i = squashfs_new_inode(s, inodeb)) == NULL)
++ goto failed_read1;
++
++ i->i_nlink = inodep->nlink;
++ 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;
-+ i->i_blksize = PAGE_CACHE_SIZE;
-+ SQUASHFS_I(i)->start_block = inodep.start_block;
-+ SQUASHFS_I(i)->block_list_start = next_block;
++ 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;
-+ 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);
++ if (sblk->block_size > 4096)
++ i->i_data.a_ops = &squashfs_aops;
++ else
++ i->i_data.a_ops = &squashfs_aops_4K;
++
++ 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: {
-+ squashfs_dir_inode_header inodep;
-+
-+ if(msBlk->swap) {
-+ squashfs_dir_inode_header sinodep;
-+
-+ if(!squashfs_get_cached_block(s, (char *) &sinodep, block, offset, sizeof(sinodep),
-+ &next_block, &next_offset))
++ 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, (char *)
++ sinodep, block, offset,
++ sizeof(*sinodep), &next_block,
++ &next_offset))
+ goto failed_read;
-+ SQUASHFS_SWAP_DIR_INODE_HEADER(&inodep, &sinodep);
++ SQUASHFS_SWAP_DIR_INODE_HEADER(inodep, sinodep);
+ } else
-+ if(!squashfs_get_cached_block(s, (char *) &inodep, block, offset, sizeof(inodep),
-+ &next_block, &next_offset))
++ 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;
++ if((i = squashfs_new_inode(s, inodeb)) == NULL)
++ goto failed_read1;
++
++ 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;
-+ 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)->start_block = inodep->start_block;
++ SQUASHFS_I(i)->offset = inodep->offset;
+ SQUASHFS_I(i)->u.s2.directory_index_count = 0;
-+ TRACE("Directory inode %x:%x, start_block %x, offset %x\n", SQUASHFS_INODE_BLK(inode), offset,
-+ inodep.start_block, inodep.offset);
++ 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: {
-+ squashfs_ldir_inode_header inodep;
-+
-+ if(msBlk->swap) {
-+ squashfs_ldir_inode_header sinodep;
-+
-+ if(!squashfs_get_cached_block(s, (char *) &sinodep, block, offset, sizeof(sinodep),
-+ &next_block, &next_offset))
++ 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, (char *)
++ sinodep, block, offset,
++ sizeof(*sinodep), &next_block,
++ &next_offset))
+ goto failed_read;
-+ SQUASHFS_SWAP_LDIR_INODE_HEADER(&inodep, &sinodep);
++ SQUASHFS_SWAP_LDIR_INODE_HEADER(inodep,
++ sinodep);
+ } else
-+ if(!squashfs_get_cached_block(s, (char *) &inodep, block, offset, sizeof(inodep),
-+ &next_block, &next_offset))
++ 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;
++ if((i = squashfs_new_inode(s, inodeb)) == NULL)
++ goto failed_read1;
++
++ 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;
-+ 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)->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;
-+ TRACE("Long directory inode %x:%x, start_block %x, offset %x\n", SQUASHFS_INODE_BLK(inode), offset,
-+ inodep.start_block, inodep.offset);
++ 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: {
-+ squashfs_symlink_inode_header inodep;
-+
-+ if(msBlk->swap) {
-+ squashfs_symlink_inode_header sinodep;
-+
-+ if(!squashfs_get_cached_block(s, (char *) &sinodep, block, offset, sizeof(sinodep),
-+ &next_block, &next_offset))
++ 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, (char *)
++ sinodep, block, offset,
++ sizeof(*sinodep), &next_block,
++ &next_offset))
+ goto failed_read;
-+ SQUASHFS_SWAP_SYMLINK_INODE_HEADER(&inodep, &sinodep);
++ SQUASHFS_SWAP_SYMLINK_INODE_HEADER(inodep,
++ sinodep);
+ } else
-+ if(!squashfs_get_cached_block(s, (char *) &inodep, block, offset, sizeof(inodep),
-+ &next_block, &next_offset))
++ 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;
++ if((i = squashfs_new_inode(s, inodeb)) == NULL)
++ goto failed_read1;
++
++ 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 %x, offset %x\n",
-+ SQUASHFS_INODE_BLK(inode), offset, next_block, 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: {
-+ squashfs_dev_inode_header inodep;
-+
-+ if(msBlk->swap) {
-+ squashfs_dev_inode_header sinodep;
-+
-+ if(!squashfs_get_cached_block(s, (char *) &sinodep, block, offset, sizeof(sinodep),
-+ &next_block, &next_offset))
++ 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, (char *)
++ 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, (char *) &inodep, block, offset, sizeof(inodep),
-+ &next_block, &next_offset))
++ SQUASHFS_SWAP_DEV_INODE_HEADER(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 = 0;
-+ 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);
++ if ((i = squashfs_new_inode(s, inodeb)) == NULL)
++ goto failed_read1;
++
++ 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: {
-+ i->i_size = 0;
-+ i->i_mode |= (inodeb.inode_type == SQUASHFS_FIFO_TYPE) ? S_IFIFO : S_IFSOCK;
++ 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, (char *)
++ 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, (char *)
++ inodep, block, offset,
++ sizeof(*inodep), &next_block,
++ &next_offset))
++ goto failed_read;
++
++ if ((i = squashfs_new_inode(s, inodeb)) == NULL)
++ goto failed_read1;
++
++ 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;
++ ERROR("Unknown inode type %d in squashfs_iget!\n",
++ inodeb->inode_type);
++ goto failed_read1;
+ }
-+
-+ if(inodeb.guid == SQUASHFS_GUIDS)
-+ i->i_gid = i->i_uid;
-+ else
-+ i->i_gid = msBlk->guid[inodeb.guid];
+
+ insert_inode_hash(i);
+ return i;
+
+failed_read:
-+ ERROR("Unable to read inode [%x:%x]\n", block, offset);
++ ERROR("Unable to read inode [%llx:%x]\n", block, offset);
+
+failed_read1:
+ return NULL;
+}
+
+
-+static int squashfs_fill_super(struct super_block *s,
-+ void *data, int silent)
++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;
++
++ /* Allocate fragment index table */
++ if (!(msblk->fragment_index = kmalloc(SQUASHFS_FRAGMENT_INDEX_BYTES
++ (sblk->fragments), GFP_KERNEL))) {
++ ERROR("Failed to allocate uid/gid table\n");
++ return 0;
++ }
++
++ if (SQUASHFS_FRAGMENT_INDEX_BYTES(sblk->fragments) &&
++ !squashfs_read_data(s, (char *)
++ msblk->fragment_index,
++ sblk->fragment_table_start,
++ SQUASHFS_FRAGMENT_INDEX_BYTES
++ (sblk->fragments) |
++ SQUASHFS_COMPRESSED_BIT_BLOCK, NULL)) {
++ 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++) {
++ SQUASHFS_SWAP_FRAGMENT_INDEXES((&fragment),
++ &msblk->fragment_index[i], 1);
++ msblk->fragment_index[i] = fragment;
++ }
++ }
++
++ return 1;
++}
++
++
++static int supported_squashfs_filesystem(struct squashfs_sb_info *msblk, int silent)
++{
++ struct squashfs_super_block *sblk = &msblk->sblk;
++
++ msblk->iget = squashfs_iget;
++ 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)
+{
-+ squashfs_sb_info *msBlk;
-+ squashfs_super_block *sBlk;
++ struct squashfs_sb_info *msblk;
++ struct squashfs_super_block *sblk;
+ int i;
+ char b[BDEVNAME_SIZE];
++ struct inode *root;
+
+ TRACE("Entered squashfs_read_superblock\n");
+
-+ if(!(s->s_fs_info = (void *) kmalloc(sizeof(squashfs_sb_info), GFP_KERNEL))) {
++ if (!(s->s_fs_info = kmalloc(sizeof(struct squashfs_sb_info),
++ GFP_KERNEL))) {
+ ERROR("Failed to allocate superblock\n");
-+ return -ENOMEM;
++ goto failure;
+ }
-+ msBlk = (squashfs_sb_info *) s->s_fs_info;
-+ sBlk = &msBlk->sBlk;
-+
-+ msBlk->devblksize = sb_min_blocksize(s, BLOCK_SIZE);
-+ msBlk->devblksize_log2 = ffz(~msBlk->devblksize);
-+
-+ init_MUTEX(&msBlk->read_page_mutex);
-+ init_MUTEX(&msBlk->block_cache_mutex);
-+ init_MUTEX(&msBlk->fragment_mutex);
-+
-+ init_waitqueue_head(&msBlk->waitq);
-+ init_waitqueue_head(&msBlk->fragment_wait_queue);
-+
-+ if(!read_data(s, (char *) sBlk, SQUASHFS_START, sizeof(squashfs_super_block) | SQUASHFS_COMPRESSED_BIT_BLOCK, NULL)) {
++ memset(s->s_fs_info, 0, sizeof(struct squashfs_sb_info));
++ msblk = s->s_fs_info;
++ sblk = &msblk->sblk;
++
++ msblk->devblksize = sb_min_blocksize(s, BLOCK_SIZE);
++ msblk->devblksize_log2 = ffz(~msblk->devblksize);
++
++ init_MUTEX(&msblk->read_data_mutex);
++ init_MUTEX(&msblk->read_page_mutex);
++ init_MUTEX(&msblk->block_cache_mutex);
++ init_MUTEX(&msblk->fragment_mutex);
++ init_MUTEX(&msblk->meta_index_mutex);
++
++ init_waitqueue_head(&msblk->waitq);
++ init_waitqueue_head(&msblk->fragment_wait_queue);
++
++ if (!squashfs_read_data(s, (char *) sblk, SQUASHFS_START,
++ sizeof(struct squashfs_super_block) |
++ SQUASHFS_COMPRESSED_BIT_BLOCK, NULL)) {
+ SERROR("unable to read superblock\n");
+ goto failed_mount;
+ }
+
+ /* Check it is a SQUASHFS superblock */
-+ msBlk->swap = 0;
-+ if((s->s_magic = sBlk->s_magic) != SQUASHFS_MAGIC) {
-+ if(sBlk->s_magic == SQUASHFS_MAGIC_SWAP) {
-+ squashfs_super_block sblk;
-+ WARNING("Mounting a different endian SQUASHFS filesystem on %s\n", bdevname(s->s_bdev, b));
-+ SQUASHFS_SWAP_SUPER_BLOCK(&sblk, sBlk);
-+ memcpy(sBlk, &sblk, sizeof(squashfs_super_block));
-+ msBlk->swap = 1;
++ msblk->swap = 0;
++ if ((s->s_magic = sblk->s_magic) != SQUASHFS_MAGIC) {
++ if (sblk->s_magic == SQUASHFS_MAGIC_SWAP) {
++ struct squashfs_super_block ssblk;
++
++ 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;
+ } else {
-+ SERROR("Can't find a SQUASHFS superblock on %s\n", bdevname(s->s_bdev, b));
++ SERROR("Can't find a SQUASHFS superblock on %s\n",
++ bdevname(s->s_bdev, b));
+ goto failed_mount;
+ }
+ }
+
+ /* Check the MAJOR & MINOR versions */
-+#ifdef SQUASHFS_1_0_COMPATIBILITY
-+ if((sBlk->s_major != 1) && (sBlk->s_major != 2 || sBlk->s_minor > SQUASHFS_MINOR)) {
-+ SERROR("Major/Minor mismatch, filesystem is (%d:%d), I support (1 : x) or (2 : <= %d)\n",
-+ sBlk->s_major, sBlk->s_minor, SQUASHFS_MINOR);
-+ goto failed_mount;
-+ }
-+ if(sBlk->s_major == 1)
-+ sBlk->block_size = sBlk->block_size_1;
-+#else
-+ if(sBlk->s_major != SQUASHFS_MAJOR || sBlk->s_minor > SQUASHFS_MINOR) {
-+ SERROR("Major/Minor mismatch, filesystem is (%d:%d), I support (%d: <= %d)\n",
-+ sBlk->s_major, sBlk->s_minor, SQUASHFS_MAJOR, SQUASHFS_MINOR);
++ if(!supported_squashfs_filesystem(msblk, silent))
+ goto failed_mount;
-+ }
-+#endif
+
+ 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 %s present in the filesystem\n", SQUASHFS_CHECK_DATA(sBlk->flags) ? "" : "not");
-+ TRACE("Filesystem size %d 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 %x\n", sBlk->inode_table_start);
-+ TRACE("sBlk->directory_table_start %x\n", sBlk->directory_table_start);
-+ if(sBlk->s_major > 1)
-+ TRACE("sBlk->fragment_table_start %x\n", sBlk->fragment_table_start);
-+ TRACE("sBlk->uid_start %x\n", sBlk->uid_start);
++ 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 %s present 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_flags |= MS_RDONLY;
+ s->s_op = &squashfs_ops;
+
+ /* Init inode_table block pointer array */
-+ if(!(msBlk->block_cache = (squashfs_cache *) kmalloc(sizeof(squashfs_cache) * SQUASHFS_CACHED_BLKS, GFP_KERNEL))) {
++ if (!(msblk->block_cache = kmalloc(sizeof(struct squashfs_cache) *
++ SQUASHFS_CACHED_BLKS, GFP_KERNEL))) {
+ ERROR("Failed to allocate block cache\n");
+ goto failed_mount;
+ }
+
-+ for(i = 0; i < SQUASHFS_CACHED_BLKS; i++)
-+ msBlk->block_cache[i].block = SQUASHFS_INVALID_BLK;
++ for (i = 0; i < SQUASHFS_CACHED_BLKS; i++)
++ msblk->block_cache[i].block = SQUASHFS_INVALID_BLK;
+
-+ msBlk->next_cache = 0;
++ msblk->next_cache = 0;
+
+ /* Allocate read_data block */
-+ msBlk->read_size = (sBlk->block_size < SQUASHFS_METADATA_SIZE) ? SQUASHFS_METADATA_SIZE : sBlk->block_size;
-+ if(!(msBlk->read_data = (char *) kmalloc(msBlk->read_size, GFP_KERNEL))) {
++ msblk->read_size = (sblk->block_size < SQUASHFS_METADATA_SIZE) ?
++ SQUASHFS_METADATA_SIZE :
++ sblk->block_size;
++
++ if (!(msblk->read_data = kmalloc(msblk->read_size, GFP_KERNEL))) {
+ ERROR("Failed to allocate read_data block\n");
-+ goto failed_mount1;
++ goto failed_mount;
+ }
+
+ /* Allocate read_page block */
-+ if(sBlk->block_size > PAGE_CACHE_SIZE) {
-+ if(!(msBlk->read_page = (char *) kmalloc(sBlk->block_size, GFP_KERNEL))) {
-+ ERROR("Failed to allocate read_page block\n");
-+ goto failed_mount2;
-+ }
-+ } else
-+ msBlk->read_page = NULL;
++ if (!(msblk->read_page = kmalloc(sblk->block_size, GFP_KERNEL))) {
++ ERROR("Failed to allocate read_page block\n");
++ goto failed_mount;
++ }
+
+ /* Allocate uid and gid tables */
-+ if(!(msBlk->uid = (squashfs_uid *) kmalloc((sBlk->no_uids +
-+ sBlk->no_guids) * sizeof(squashfs_uid), GFP_KERNEL))) {
++ if (!(msblk->uid = kmalloc((sblk->no_uids + sblk->no_guids) *
++ sizeof(unsigned int), GFP_KERNEL))) {
+ ERROR("Failed to allocate uid/gid table\n");
-+ goto failed_mount3;
++ goto failed_mount;
+ }
-+ msBlk->guid = msBlk->uid + sBlk->no_uids;
-+
-+ if(msBlk->swap) {
-+ squashfs_uid suid[sBlk->no_uids + sBlk->no_guids];
-+
-+ if(!read_data(s, (char *) &suid, sBlk->uid_start, ((sBlk->no_uids + sBlk->no_guids) *
-+ sizeof(squashfs_uid)) | SQUASHFS_COMPRESSED_BIT_BLOCK, NULL)) {
-+ SERROR("unable to read uid/gid table\n");
-+ goto failed_mount4;
++ msblk->guid = msblk->uid + sblk->no_uids;
++
++ if (msblk->swap) {
++ unsigned int suid[sblk->no_uids + sblk->no_guids];
++
++ if (!squashfs_read_data(s, (char *) &suid, sblk->uid_start,
++ ((sblk->no_uids + sblk->no_guids) *
++ sizeof(unsigned int)) |
++ SQUASHFS_COMPRESSED_BIT_BLOCK, NULL)) {
++ ERROR("unable to read uid/gid table\n");
++ goto failed_mount;
+ }
-+ SQUASHFS_SWAP_DATA(msBlk->uid, suid, (sBlk->no_uids + sBlk->no_guids), (sizeof(squashfs_uid) * 8));
++
++ SQUASHFS_SWAP_DATA(msblk->uid, suid, (sblk->no_uids +
++ sblk->no_guids), (sizeof(unsigned int) * 8));
+ } else
-+ if(!read_data(s, (char *) msBlk->uid, sBlk->uid_start, ((sBlk->no_uids + sBlk->no_guids) *
-+ sizeof(squashfs_uid)) | SQUASHFS_COMPRESSED_BIT_BLOCK, NULL)) {
-+ SERROR("unable to read uid/gid table\n");
-+ goto failed_mount4;
++ 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)) {
++ ERROR("unable to read uid/gid table\n");
++ goto failed_mount;
+ }
+
+
-+#ifdef SQUASHFS_1_0_COMPATIBILITY
-+ if(sBlk->s_major == 1) {
-+ msBlk->iget = squashfs_iget_1;
-+ msBlk->read_blocklist = read_blocklist_1;
-+ msBlk->fragment = NULL;
-+ msBlk->fragment_index = NULL;
++ if (sblk->s_major == 1 && squashfs_1_0_supported(msblk))
+ goto allocate_root;
-+ }
-+#endif
-+ msBlk->iget = squashfs_iget;
-+ msBlk->read_blocklist = read_blocklist;
+
-+ if(!(msBlk->fragment = (struct squashfs_fragment_cache *) kmalloc(sizeof(struct squashfs_fragment_cache) * SQUASHFS_CACHED_FRAGMENTS, GFP_KERNEL))) {
++ if (!(msblk->fragment = kmalloc(sizeof(struct squashfs_fragment_cache) *
++ SQUASHFS_CACHED_FRAGMENTS, GFP_KERNEL))) {
+ ERROR("Failed to allocate fragment block cache\n");
-+ goto failed_mount4;
++ goto failed_mount;
+ }
+
-+ for(i = 0; i < SQUASHFS_CACHED_FRAGMENTS; i++) {
-+ msBlk->fragment[i].locked = 0;
-+ msBlk->fragment[i].block = SQUASHFS_INVALID_BLK;
-+ msBlk->fragment[i].data = NULL;
++ for (i = 0; i < SQUASHFS_CACHED_FRAGMENTS; i++) {
++ msblk->fragment[i].locked = 0;
++ msblk->fragment[i].block = SQUASHFS_INVALID_BLK;
++ msblk->fragment[i].data = NULL;
+ }
+
-+ msBlk->next_fragment = 0;
++ msblk->next_fragment = 0;
+
+ /* Allocate fragment index table */
-+ if(!(msBlk->fragment_index = (squashfs_fragment_index *) kmalloc(SQUASHFS_FRAGMENT_INDEX_BYTES(sBlk->fragments), GFP_KERNEL))) {
-+ ERROR("Failed to allocate uid/gid table\n");
-+ goto failed_mount5;
-+ }
-+
-+ if(SQUASHFS_FRAGMENT_INDEX_BYTES(sBlk->fragments) &&
-+ !read_data(s, (char *) msBlk->fragment_index, sBlk->fragment_table_start,
-+ SQUASHFS_FRAGMENT_INDEX_BYTES(sBlk->fragments) | SQUASHFS_COMPRESSED_BIT_BLOCK, NULL)) {
-+ SERROR("unable to read fragment index table\n");
-+ goto failed_mount6;
-+ }
++ if (msblk->read_fragment_index_table(s) == 0)
++ goto failed_mount;
+
-+ if(msBlk->swap) {
-+ int i;
-+ squashfs_fragment_index fragment;
-+
-+ for(i = 0; i < SQUASHFS_FRAGMENT_INDEXES(sBlk->fragments); i++) {
-+ SQUASHFS_SWAP_FRAGMENT_INDEXES((&fragment), &msBlk->fragment_index[i], 1);
-+ msBlk->fragment_index[i] = fragment;
-+ }
-+ }
-+
-+#ifdef SQUASHFS_1_0_COMPATIBILITY
+allocate_root:
-+#endif
-+ if(!(s->s_root = d_alloc_root((msBlk->iget)(s, sBlk->root_inode)))) {
++ if ((root = (msblk->iget)(s, sblk->root_inode)) == NULL)
++ goto failed_mount;
++
++ if ((s->s_root = d_alloc_root(root)) == NULL) {
+ ERROR("Root inode create failed\n");
-+ goto failed_mount5;
++ iput(root);
++ goto failed_mount;
+ }
+
+ TRACE("Leaving squashfs_read_super\n");
+ return 0;
+
-+failed_mount6:
-+ kfree(msBlk->fragment_index);
-+failed_mount5:
-+ kfree(msBlk->fragment);
-+failed_mount4:
-+ kfree(msBlk->uid);
-+failed_mount3:
-+ kfree(msBlk->read_page);
-+failed_mount2:
-+ kfree(msBlk->read_data);
-+failed_mount1:
-+ kfree(msBlk->block_cache);
+failed_mount:
++ kfree(msblk->fragment_index);
++ kfree(msblk->fragment);
++ kfree(msblk->uid);
++ kfree(msblk->read_page);
++ kfree(msblk->read_data);
++ kfree(msblk->block_cache);
++ kfree(msblk->fragment_index_2);
+ kfree(s->s_fs_info);
+ s->s_fs_info = NULL;
+ return -EINVAL;
++
++failure:
++ return -ENOMEM;
+}
+
+
-+static int squashfs_statfs(struct super_block *s, struct kstatfs *buf)
++static int squashfs_statfs(struct dentry *dentry, struct kstatfs *buf)
+{
-+ squashfs_super_block *sBlk = &((squashfs_sb_info *)s->s_fs_info)->sBlk;
++ struct squashfs_sb_info *msblk = dentry->d_inode->i_sb->s_fs_info;
++ struct squashfs_super_block *sblk = &msblk->sblk;
+
+ TRACE("Entered squashfs_statfs\n");
++
+ buf->f_type = SQUASHFS_MAGIC;
-+ buf->f_bsize = sBlk->block_size;
-+ buf->f_blocks = ((sBlk->bytes_used - 1) >> sBlk->block_log) + 1;
++ 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_files = sblk->inodes;
+ buf->f_ffree = 0;
+ buf->f_namelen = SQUASHFS_NAME_LEN;
++
+ return 0;
+}
+
+{
+ struct inode *inode = page->mapping->host;
+ int index = page->index << PAGE_CACHE_SHIFT, length, bytes;
-+ unsigned int block = SQUASHFS_I(inode)->start_block;
++ 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 %d, start block %x, offset %x\n",
-+ page->index, SQUASHFS_I(inode)->start_block, SQUASHFS_I(inode)->offset);
-+
-+ for(length = 0; length < index; length += bytes) {
-+ if(!(bytes = squashfs_get_cached_block(inode->i_sb, NULL, block, offset,
-+ PAGE_CACHE_SIZE, &block, &offset))) {
-+ ERROR("Unable to read symbolic link [%x:%x]\n", block, offset);
++ 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) {
++ if (!(bytes = squashfs_get_cached_block(inode->i_sb, NULL,
++ block, offset, PAGE_CACHE_SIZE, &block,
++ &offset))) {
++ ERROR("Unable to read symbolic link [%llx:%x]\n", block,
++ offset);
+ goto skip_read;
+ }
+ }
+
-+ if(length != index) {
++ if (length != index) {
+ ERROR("(squashfs_symlink_readpage) length != index\n");
+ bytes = 0;
+ goto skip_read;
+ }
+
-+ bytes = (inode->i_size - length) > PAGE_CACHE_SIZE ? PAGE_CACHE_SIZE : inode->i_size - length;
-+ if(!(bytes = squashfs_get_cached_block(inode->i_sb, pageaddr, block, offset, bytes, &block, &offset)))
-+ ERROR("Unable to read symbolic link [%x:%x]\n", block, offset);
++ bytes = (i_size_read(inode) - length) > PAGE_CACHE_SIZE ? PAGE_CACHE_SIZE :
++ i_size_read(inode) - length;
++
++ if (!(bytes = squashfs_get_cached_block(inode->i_sb, pageaddr, block,
++ offset, bytes, &block, &offset)))
++ 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);
+
+}
+
+
-+#define SIZE 256
++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;
++
++ down(&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:
++ up(&msblk->meta_index_mutex);
+
-+#ifdef SQUASHFS_1_0_COMPATIBILITY
-+static unsigned int read_blocklist_1(struct inode *inode, int index, int readahead_blks,
-+ char *block_list, unsigned short **block_p, unsigned int *bsize)
++ return meta;
++}
++
++
++struct meta_index *empty_meta_index(struct inode *inode, int offset, int skip)
+{
-+ squashfs_sb_info *msBlk = (squashfs_sb_info *)inode->i_sb->s_fs_info;
-+ unsigned short *block_listp;
-+ int i = 0;
-+ int block_ptr = SQUASHFS_I(inode)->block_list_start;
-+ int offset = SQUASHFS_I(inode)->offset;
-+ unsigned int block = SQUASHFS_I(inode)->start_block;
++ struct squashfs_sb_info *msblk = inode->i_sb->s_fs_info;
++ struct meta_index *meta = NULL;
++ int i;
+
-+ for(;;) {
-+ int blocks = (index + readahead_blks - i);
-+ if(blocks > (SIZE >> 1)) {
-+ if((index - i) <= (SIZE >> 1))
-+ blocks = index - i;
-+ else
-+ blocks = SIZE >> 1;
++ down(&msblk->meta_index_mutex);
++
++ TRACE("empty_meta_index: offset %d, skip %d\n", offset, skip);
++
++ if(msblk->meta_index == NULL) {
++ if (!(msblk->meta_index = kmalloc(sizeof(struct meta_index) *
++ SQUASHFS_META_NUMBER, GFP_KERNEL))) {
++ 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;
++ }
+
-+ if(msBlk->swap) {
-+ unsigned char sblock_list[SIZE];
-+ if(!squashfs_get_cached_block(inode->i_sb, (char *) sblock_list, block_ptr, offset, blocks << 1, &block_ptr, &offset)) {
-+ ERROR("Unable to read block list [%d:%x]\n", block_ptr, offset);
-+ return 0;
-+ }
-+ SQUASHFS_SWAP_SHORTS(((unsigned short *)block_list), ((unsigned short *)sblock_list), blocks);
-+ } else
-+ if(!squashfs_get_cached_block(inode->i_sb, (char *) block_list, block_ptr, offset, blocks << 1, &block_ptr, &offset)) {
-+ ERROR("Unable to read block list [%d:%x]\n", block_ptr, offset);
-+ return 0;
-+ }
-+ for(block_listp = (unsigned short *) block_list; i < index && blocks; i ++, block_listp ++, blocks --)
-+ block += SQUASHFS_COMPRESSED_SIZE(*block_listp);
-+ if(blocks >= readahead_blks)
-+ break;
++ 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;
+ }
+
-+ if(bsize)
-+ *bsize = SQUASHFS_COMPRESSED_SIZE(*block_listp) | (!SQUASHFS_COMPRESSED(*block_listp) ? SQUASHFS_COMPRESSED_BIT_BLOCK : 0);
-+ else
-+ *block_p = block_listp;
-+ return block;
++ 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:
++ up(&msblk->meta_index_mutex);
++ return meta;
++}
++
++
++void release_meta_index(struct inode *inode, struct meta_index *meta)
++{
++ meta->locked = 0;
+}
-+#endif
+
+
-+static unsigned int read_blocklist(struct inode *inode, int index, int readahead_blks,
-+ char *block_list, unsigned short **block_p, unsigned int *bsize)
++static int read_block_index(struct super_block *s, int blocks, char *block_list,
++ long long *start_block, int *offset)
+{
-+ squashfs_sb_info *msBlk = (squashfs_sb_info *)inode->i_sb->s_fs_info;
++ struct squashfs_sb_info *msblk = s->s_fs_info;
+ unsigned int *block_listp;
-+ int i = 0;
-+ int block_ptr = SQUASHFS_I(inode)->block_list_start;
-+ int offset = SQUASHFS_I(inode)->offset;
-+ unsigned int block = SQUASHFS_I(inode)->start_block;
++ int block = 0;
+
-+ for(;;) {
-+ int blocks = (index + readahead_blks - i);
-+ if(blocks > (SIZE >> 2)) {
-+ if((index - i) <= (SIZE >> 2))
-+ blocks = index - i;
-+ else
-+ blocks = SIZE >> 2;
++ if (msblk->swap) {
++ char sblock_list[blocks << 2];
++
++ if (!squashfs_get_cached_block(s, sblock_list, *start_block,
++ *offset, blocks << 2, start_block, offset)) {
++ ERROR("Unable to read block list [%llx:%x]\n",
++ *start_block, *offset);
++ goto failure;
++ }
++ SQUASHFS_SWAP_INTS(((unsigned int *)block_list),
++ ((unsigned int *)sblock_list), blocks);
++ } else
++ if (!squashfs_get_cached_block(s, block_list, *start_block,
++ *offset, blocks << 2, start_block, offset)) {
++ ERROR("Unable to read block list [%llx:%x]\n",
++ *start_block, *offset);
++ goto failure;
+ }
+
-+ if(msBlk->swap) {
-+ unsigned char sblock_list[SIZE];
-+ if(!squashfs_get_cached_block(inode->i_sb, (char *) sblock_list, block_ptr, offset, blocks << 2, &block_ptr, &offset)) {
-+ ERROR("Unable to read block list [%d:%x]\n", block_ptr, offset);
-+ return 0;
-+ }
-+ SQUASHFS_SWAP_INTS(((unsigned int *)block_list), ((unsigned int *)sblock_list), blocks);
-+ } else
-+ if(!squashfs_get_cached_block(inode->i_sb, (char *) block_list, block_ptr, offset, blocks << 2, &block_ptr, &offset)) {
-+ ERROR("Unable to read block list [%d:%x]\n", block_ptr, offset);
-+ return 0;
++ 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) {
++ if ((meta = empty_meta_index(inode, offset + 1,
++ skip)) == NULL)
++ goto all_done;
++ } else {
++ offset = index < meta->offset + meta->entries ? index :
++ meta->offset + meta->entries - 1;
++ 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;
+ }
-+ for(block_listp = (unsigned int *) block_list; i < index && blocks; i ++, block_listp ++, blocks --)
-+ block += SQUASHFS_COMPRESSED_SIZE_BLOCK(*block_listp);
-+ if(blocks >= readahead_blks)
-+ break;
++
++ 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;
+ }
+
-+ *bsize = *block_listp;
++ 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;
-+ squashfs_sb_info *msBlk = (squashfs_sb_info *)inode->i_sb->s_fs_info;
-+ squashfs_super_block *sBlk = &msBlk->sBlk;
++ struct squashfs_sb_info *msblk = inode->i_sb->s_fs_info;
++ struct squashfs_super_block *sblk = &msblk->sblk;
+ unsigned char block_list[SIZE];
-+ unsigned int bsize, block, i = 0, bytes = 0, byte_offset = 0;
-+ int index = page->index >> (sBlk->block_log - PAGE_CACHE_SHIFT);
-+ void *pageaddr = kmap(page);
++ long long block;
++ unsigned int bsize, i = 0, bytes = 0, byte_offset = 0;
++ 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;
++ 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;
+
-+ TRACE("Entered squashfs_readpage, page index %x, start block %x\n", (unsigned int) page->index,
-+ SQUASHFS_I(inode)->start_block);
++ TRACE("Entered squashfs_readpage, page index %lx, start block %llx\n",
++ page->index,
++ SQUASHFS_I(inode)->start_block);
+
-+ if(page->index >= ((inode->i_size + PAGE_CACHE_SIZE - 1) >> PAGE_CACHE_SHIFT)) {
++ if (page->index >= ((i_size_read(inode) + PAGE_CACHE_SIZE - 1) >>
++ PAGE_CACHE_SHIFT))
+ goto skip_read;
-+ }
+
-+ if(SQUASHFS_I(inode)->u.s1.fragment_start_block == SQUASHFS_INVALID_BLK || index < (inode->i_size >> sBlk->block_log)) {
-+ if((block = (msBlk->read_blocklist)(inode, index, 1, block_list, NULL, &bsize)) == 0)
++ if (SQUASHFS_I(inode)->u.s1.fragment_start_block == SQUASHFS_INVALID_BLK
++ || index < (i_size_read(inode) >>
++ sblk->block_log)) {
++ if ((block = (msblk->read_blocklist)(inode, index, 1,
++ block_list, NULL, &bsize)) == 0)
+ goto skip_read;
+
-+ down(&msBlk->read_page_mutex);
-+ if(!(bytes = read_data(inode->i_sb, msBlk->read_page, block, bsize, NULL))) {
-+ ERROR("Unable to read page, block %x, size %x\n", block, bsize);
-+ up(&msBlk->read_page_mutex);
++ down(&msblk->read_page_mutex);
++
++ if (!(bytes = squashfs_read_data(inode->i_sb, msblk->read_page,
++ block, bsize, NULL))) {
++ ERROR("Unable to read page, block %llx, size %x\n", block,
++ bsize);
++ up(&msblk->read_page_mutex);
+ goto skip_read;
+ }
+ } else {
-+ if((fragment = get_cached_fragment(inode->i_sb, SQUASHFS_I(inode)->u.s1.fragment_start_block, SQUASHFS_I(inode)->u.s1.fragment_size)) == NULL) {
-+ ERROR("Unable to read page, block %x, size %x\n", SQUASHFS_I(inode)->u.s1.fragment_start_block, (int) SQUASHFS_I(inode)->u.s1.fragment_size);
++ if ((fragment = get_cached_fragment(inode->i_sb,
++ SQUASHFS_I(inode)->
++ u.s1.fragment_start_block,
++ SQUASHFS_I(inode)->u.s1.fragment_size))
++ == 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 skip_read;
+ }
-+ bytes = SQUASHFS_I(inode)->u.s1.fragment_offset + (inode->i_size & (sBlk->block_size - 1));
++ bytes = SQUASHFS_I(inode)->u.s1.fragment_offset +
++ (i_size_read(inode) & (sblk->block_size
++ - 1));
+ byte_offset = SQUASHFS_I(inode)->u.s1.fragment_offset;
+ data_ptr = fragment->data;
+ }
+
-+ for(i = start_index; i <= end_index && byte_offset < bytes; i++, byte_offset += PAGE_CACHE_SIZE) {
++ for (i = start_index; i <= end_index && byte_offset < bytes;
++ i++, byte_offset += PAGE_CACHE_SIZE) {
+ struct page *push_page;
-+ int available_bytes = (bytes - byte_offset) > PAGE_CACHE_SIZE ? PAGE_CACHE_SIZE : bytes - byte_offset;
-+
-+ TRACE("bytes %d, i %d, byte_offset %d, available_bytes %d\n", bytes, i, byte_offset, available_bytes);
-+
-+ if(i == page->index) {
-+ memcpy(pageaddr, data_ptr + byte_offset, available_bytes);
-+ memset(pageaddr + available_bytes, 0, PAGE_CACHE_SIZE - available_bytes);
-+ kunmap(page);
++ int available_bytes = (bytes - byte_offset) > PAGE_CACHE_SIZE ?
++ PAGE_CACHE_SIZE : bytes - byte_offset;
++
++ TRACE("bytes %d, i %d, byte_offset %d, available_bytes %d\n",
++ bytes, i, byte_offset, available_bytes);
++
++ if (i == page->index) {
++ pageaddr = kmap_atomic(page, KM_USER0);
++ memcpy(pageaddr, data_ptr + byte_offset,
++ available_bytes);
++ memset(pageaddr + available_bytes, 0,
++ PAGE_CACHE_SIZE - available_bytes);
++ kunmap_atomic(pageaddr, KM_USER0);
+ flush_dcache_page(page);
+ SetPageUptodate(page);
+ unlock_page(page);
-+ } else if((push_page = grab_cache_page_nowait(page->mapping, i))) {
-+ void *pageaddr = kmap(push_page);
-+ memcpy(pageaddr, data_ptr + byte_offset, available_bytes);
-+ memset(pageaddr + available_bytes, 0, PAGE_CACHE_SIZE - available_bytes);
-+ kunmap(push_page);
++ } else if ((push_page =
++ grab_cache_page_nowait(page->mapping, i))) {
++ pageaddr = kmap_atomic(push_page, KM_USER0);
++
++ memcpy(pageaddr, data_ptr + byte_offset,
++ available_bytes);
++ memset(pageaddr + available_bytes, 0,
++ PAGE_CACHE_SIZE - available_bytes);
++ kunmap_atomic(pageaddr, KM_USER0);
+ flush_dcache_page(push_page);
+ SetPageUptodate(push_page);
+ unlock_page(push_page);
+ }
+ }
+
-+ if(SQUASHFS_I(inode)->u.s1.fragment_start_block == SQUASHFS_INVALID_BLK || index < (inode->i_size >> sBlk->block_log))
-+ up(&msBlk->read_page_mutex);
++ if (SQUASHFS_I(inode)->u.s1.fragment_start_block == SQUASHFS_INVALID_BLK
++ || index < (i_size_read(inode) >>
++ sblk->block_log))
++ up(&msblk->read_page_mutex);
+ else
-+ release_cached_fragment(msBlk, fragment);
++ release_cached_fragment(msblk, fragment);
+
+ return 0;
+
+skip_read:
++ pageaddr = kmap_atomic(page, KM_USER0);
+ memset(pageaddr + bytes, 0, PAGE_CACHE_SIZE - bytes);
-+ kunmap(page);
++ kunmap_atomic(pageaddr, KM_USER0);
+ flush_dcache_page(page);
+ SetPageUptodate(page);
+ unlock_page(page);
+static int squashfs_readpage4K(struct file *file, struct page *page)
+{
+ struct inode *inode = page->mapping->host;
-+ squashfs_sb_info *msBlk = (squashfs_sb_info *)inode->i_sb->s_fs_info;
-+ squashfs_super_block *sBlk = &msBlk->sBlk;
++ struct squashfs_sb_info *msblk = inode->i_sb->s_fs_info;
++ struct squashfs_super_block *sblk = &msblk->sblk;
+ unsigned char block_list[SIZE];
-+ unsigned int bsize, block, bytes = 0;
-+ void *pageaddr = kmap(page);
-+
-+ TRACE("Entered squashfs_readpage4K, page index %x, start block %x\n", (unsigned int) page->index,
-+ SQUASHFS_I(inode)->start_block);
++ long long block;
++ unsigned int bsize, bytes = 0;
++ void *pageaddr;
+
-+ if(page->index >= ((inode->i_size + PAGE_CACHE_SIZE - 1) >> PAGE_CACHE_SHIFT)) {
++ TRACE("Entered squashfs_readpage4K, 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)) {
++ pageaddr = kmap_atomic(page, KM_USER0);
+ goto skip_read;
+ }
+
-+ if(SQUASHFS_I(inode)->u.s1.fragment_start_block == SQUASHFS_INVALID_BLK || page->index < (inode->i_size >> sBlk->block_log)) {
-+ block = (msBlk->read_blocklist)(inode, page->index, 1, block_list, NULL, &bsize);
-+
-+ if(!(bytes = read_data(inode->i_sb, pageaddr, block, bsize, NULL)))
-+ ERROR("Unable to read page, block %x, size %x\n", block, bsize);
++ if (SQUASHFS_I(inode)->u.s1.fragment_start_block == SQUASHFS_INVALID_BLK
++ || page->index < (i_size_read(inode) >>
++ sblk->block_log)) {
++ block = (msblk->read_blocklist)(inode, page->index, 1,
++ block_list, NULL, &bsize);
++
++ down(&msblk->read_page_mutex);
++ bytes = squashfs_read_data(inode->i_sb, msblk->read_page, block,
++ bsize, NULL);
++ pageaddr = kmap_atomic(page, KM_USER0);
++ if (bytes)
++ memcpy(pageaddr, msblk->read_page, bytes);
++ else
++ ERROR("Unable to read page, block %llx, size %x\n",
++ block, bsize);
++ up(&msblk->read_page_mutex);
+ } else {
-+ struct squashfs_fragment_cache *fragment;
-+
-+ if((fragment = get_cached_fragment(inode->i_sb, SQUASHFS_I(inode)->u.s1.fragment_start_block, SQUASHFS_I(inode)->u.s1.fragment_size)) == NULL)
-+ ERROR("Unable to read page, block %x, size %x\n", SQUASHFS_I(inode)->u.s1.fragment_start_block, (int) SQUASHFS_I(inode)->u.s1.fragment_size);
-+ else {
-+ bytes = inode->i_size & (sBlk->block_size - 1);
-+ memcpy(pageaddr, fragment->data + SQUASHFS_I(inode)->u.s1.fragment_offset, bytes);
-+ release_cached_fragment(msBlk, fragment);
-+ }
++ struct squashfs_fragment_cache *fragment =
++ get_cached_fragment(inode->i_sb,
++ SQUASHFS_I(inode)->
++ u.s1.fragment_start_block,
++ SQUASHFS_I(inode)-> u.s1.fragment_size);
++ pageaddr = kmap_atomic(page, KM_USER0);
++ if (fragment) {
++ bytes = i_size_read(inode) & (sblk->block_size - 1);
++ memcpy(pageaddr, fragment->data + SQUASHFS_I(inode)->
++ u.s1.fragment_offset, bytes);
++ release_cached_fragment(msblk, fragment);
++ } else
++ 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);
+ }
+
+skip_read:
+ memset(pageaddr + bytes, 0, PAGE_CACHE_SIZE - bytes);
-+ kunmap(page);
-+ flush_dcache_page(page);
-+ SetPageUptodate(page);
-+ unlock_page(page);
-+
-+ return 0;
-+}
-+
-+
-+#ifdef SQUASHFS_1_0_COMPATIBILITY
-+static int squashfs_readpage_lessthan4K(struct file *file, struct page *page)
-+{
-+ struct inode *inode = page->mapping->host;
-+ squashfs_sb_info *msBlk = (squashfs_sb_info *)inode->i_sb->s_fs_info;
-+ squashfs_super_block *sBlk = &msBlk->sBlk;
-+ unsigned char block_list[SIZE];
-+ unsigned short *block_listp, block, bytes = 0;
-+ int index = page->index << (PAGE_CACHE_SHIFT - sBlk->block_log);
-+ int file_blocks = ((inode->i_size - 1) >> sBlk->block_log) + 1;
-+ int readahead_blks = 1 << (PAGE_CACHE_SHIFT - sBlk->block_log);
-+ void *pageaddr = kmap(page);
-+
-+ int i_end = index + (1 << (PAGE_CACHE_SHIFT - sBlk->block_log));
-+ int byte;
-+
-+ TRACE("Entered squashfs_readpage_lessthan4K, page index %x, start block %x\n", (unsigned int) page->index,
-+ SQUASHFS_I(inode)->start_block);
-+
-+ block = read_blocklist_1(inode, index, readahead_blks, block_list, &block_listp, NULL);
-+
-+ if(i_end > file_blocks)
-+ i_end = file_blocks;
-+
-+ while(index < i_end) {
-+ int c_byte = !SQUASHFS_COMPRESSED(*block_listp) ? SQUASHFS_COMPRESSED_SIZE(*block_listp) | SQUASHFS_COMPRESSED_BIT_BLOCK : *block_listp;
-+ if(!(byte = read_data(inode->i_sb, pageaddr, block, c_byte, NULL))) {
-+ ERROR("Unable to read page, block %x, size %x\n", block, *block_listp);
-+ goto skip_read;
-+ }
-+ block += SQUASHFS_COMPRESSED_SIZE(*block_listp);
-+ pageaddr += byte;
-+ bytes += byte;
-+ index ++;
-+ block_listp ++;
-+ }
-+
-+skip_read:
-+ memset(pageaddr, 0, PAGE_CACHE_SIZE - bytes);
-+ kunmap(page);
++ kunmap_atomic(pageaddr, KM_USER0);
+ flush_dcache_page(page);
+ SetPageUptodate(page);
+ unlock_page(page);
+
+ return 0;
+}
-+#endif
+
+
-+static int get_dir_index_using_offset(struct super_block *s, unsigned int *next_block,
-+ unsigned int *next_offset, unsigned int index_start, unsigned int index_offset,
-+ int i_count, long long f_pos)
++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)
+{
-+ squashfs_sb_info *msBlk = (squashfs_sb_info *)s->s_fs_info;
-+ squashfs_super_block *sBlk = &msBlk->sBlk;
++ struct squashfs_sb_info *msblk = s->s_fs_info;
++ struct squashfs_super_block *sblk = &msblk->sblk;
+ int i, length = 0;
-+ squashfs_dir_index index;
++ 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);
++ TRACE("Entered get_dir_index_using_offset, i_count %d, f_pos %d\n",
++ i_count, (unsigned int) f_pos);
+
-+ if(f_pos == 0)
-+ return 0;
++ f_pos =- 3;
++ if (f_pos == 0)
++ goto finish;
+
-+ for(i = 0; i < i_count; i++) {
-+ if(msBlk->swap) {
-+ squashfs_dir_index sindex;
-+ squashfs_get_cached_block(s, (char *) &sindex, index_start, index_offset,
-+ sizeof(sindex), &index_start, &index_offset);
++ for (i = 0; i < i_count; i++) {
++ if (msblk->swap) {
++ struct squashfs_dir_index sindex;
++ squashfs_get_cached_block(s, (char *) &sindex,
++ index_start, index_offset,
++ sizeof(sindex), &index_start,
++ &index_offset);
+ SQUASHFS_SWAP_DIR_INDEX(&index, &sindex);
+ } else
-+ squashfs_get_cached_block(s, (char *) &index, index_start, index_offset,
-+ sizeof(index), &index_start, &index_offset);
++ squashfs_get_cached_block(s, (char *) &index,
++ index_start, index_offset,
++ sizeof(index), &index_start,
++ &index_offset);
+
-+ if(index.index > f_pos)
++ if (index.index > f_pos)
+ break;
+
+ squashfs_get_cached_block(s, NULL, index_start, index_offset,
-+ index.size + 1, &index_start, &index_offset);
++ index.size + 1, &index_start,
++ &index_offset);
+
+ length = index.index;
-+ *next_block = index.start_block + sBlk->directory_table_start;
++ *next_block = index.start_block + sblk->directory_table_start;
+ }
+
+ *next_offset = (length + *next_offset) % SQUASHFS_METADATA_SIZE;
-+ return length;
++
++finish:
++ return length + 3;
+}
+
+
-+static int get_dir_index_using_name(struct super_block *s, unsigned int *next_block,
-+ unsigned int *next_offset, unsigned int index_start, unsigned int index_offset,
-+ int i_count, const char *name, int size)
++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)
+{
-+ squashfs_sb_info *msBlk = (squashfs_sb_info *)s->s_fs_info;
-+ squashfs_super_block *sBlk = &msBlk->sBlk;
++ struct squashfs_sb_info *msblk = s->s_fs_info;
++ struct squashfs_super_block *sblk = &msblk->sblk;
+ int i, length = 0;
-+ char buffer[sizeof(squashfs_dir_index) + SQUASHFS_NAME_LEN + 1];
-+ squashfs_dir_index *index = (squashfs_dir_index *) buffer;
++ char buffer[sizeof(struct squashfs_dir_index) + SQUASHFS_NAME_LEN + 1];
++ struct squashfs_dir_index *index = (struct squashfs_dir_index *) buffer;
+ char str[SQUASHFS_NAME_LEN + 1];
+
+ TRACE("Entered get_dir_index_using_name, i_count %d\n", i_count);
+ strncpy(str, name, size);
+ str[size] = '\0';
+
-+ for(i = 0; i < i_count; i++) {
-+ if(msBlk->swap) {
-+ squashfs_dir_index sindex;
-+ squashfs_get_cached_block(s, (char *) &sindex, index_start, index_offset,
-+ sizeof(sindex), &index_start, &index_offset);
++ for (i = 0; i < i_count; i++) {
++ if (msblk->swap) {
++ struct squashfs_dir_index sindex;
++ squashfs_get_cached_block(s, (char *) &sindex,
++ index_start, index_offset,
++ sizeof(sindex), &index_start,
++ &index_offset);
+ SQUASHFS_SWAP_DIR_INDEX(index, &sindex);
+ } else
-+ squashfs_get_cached_block(s, (char *) index, index_start, index_offset,
-+ sizeof(squashfs_dir_index), &index_start, &index_offset);
++ squashfs_get_cached_block(s, (char *) 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);
++ 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)
++ if (strcmp(index->name, str) > 0)
+ break;
+
+ length = index->index;
-+ *next_block = index->start_block + sBlk->directory_table_start;
++ *next_block = index->start_block + sblk->directory_table_start;
+ }
+
+ *next_offset = (length + *next_offset) % SQUASHFS_METADATA_SIZE;
-+ return length;
++ return length + 3;
+}
+
-+
++
+static int squashfs_readdir(struct file *file, void *dirent, filldir_t filldir)
+{
+ struct inode *i = file->f_dentry->d_inode;
-+ squashfs_sb_info *msBlk = (squashfs_sb_info *)i->i_sb->s_fs_info;
-+ squashfs_super_block *sBlk = &msBlk->sBlk;
-+ int next_block = SQUASHFS_I(i)->start_block + sBlk->directory_table_start, next_offset =
-+ SQUASHFS_I(i)->offset, length = 0, dirs_read = 0, dir_count;
-+ squashfs_dir_header dirh;
-+ char buffer[sizeof(squashfs_dir_entry) + SQUASHFS_NAME_LEN + 1];
-+ squashfs_dir_entry *dire = (squashfs_dir_entry *) buffer;
-+
-+ TRACE("Entered squashfs_readdir [%x:%x]\n", next_block, next_offset);
-+
-+ lock_kernel();
++ 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, dirs_read = 0,
++ dir_count;
++ struct squashfs_dir_header dirh;
++ char buffer[sizeof(struct squashfs_dir_entry) + SQUASHFS_NAME_LEN + 1];
++ struct squashfs_dir_entry *dire = (struct squashfs_dir_entry *) buffer;
++
++ TRACE("Entered squashfs_readdir [%llx:%x]\n", next_block, next_offset);
++
++ 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;
++ dirs_read++;
++ }
+
-+ 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);
++ 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->i_size) {
++ while (length < i_size_read(i)) {
+ /* read directory header */
-+ if(msBlk->swap) {
-+ squashfs_dir_header sdirh;
-+ if(!squashfs_get_cached_block(i->i_sb, (char *) &sdirh, next_block,
-+ next_offset, sizeof(sdirh), &next_block, &next_offset))
++ if (msblk->swap) {
++ struct squashfs_dir_header 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(&dirh, &sdirh);
+ } else {
-+ if(!squashfs_get_cached_block(i->i_sb, (char *) &dirh, next_block,
-+ next_offset, sizeof(dirh), &next_block, &next_offset))
++ 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) {
-+ squashfs_dir_entry sdire;
-+ if(!squashfs_get_cached_block(i->i_sb, (char *) &sdire, next_block,
-+ next_offset, sizeof(sdire), &next_block, &next_offset))
++ while (dir_count--) {
++ if (msblk->swap) {
++ struct squashfs_dir_entry 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(dire, &sdire);
+ } else {
-+ if(!squashfs_get_cached_block(i->i_sb, (char *) dire, next_block,
-+ next_offset, sizeof(*dire), &next_block, &next_offset))
++ 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))
++ 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)
++ 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("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");
-+ unlock_kernel();
-+ return dirs_read;
++ goto finish;
+ }
-+
+ file->f_pos = length;
-+ dirs_read ++;
++ dirs_read++;
+ }
+ }
+
-+ unlock_kernel();
++finish:
+ return dirs_read;
+
+failed_read:
-+ unlock_kernel();
-+ ERROR("Unable to read directory block [%x:%x]\n", next_block, next_offset);
++ ERROR("Unable to read directory block [%llx:%x]\n", next_block,
++ next_offset);
+ return 0;
+}
+
+
-+static struct dentry *squashfs_lookup(struct inode *i, struct dentry *dentry, struct nameidata *nd)
++static struct dentry *squashfs_lookup(struct inode *i, struct dentry *dentry,
++ struct nameidata *nd)
+{
-+ const unsigned char *name =dentry->d_name.name;
++ const unsigned char *name = dentry->d_name.name;
+ int len = dentry->d_name.len;
+ struct inode *inode = NULL;
-+ squashfs_sb_info *msBlk = (squashfs_sb_info *)i->i_sb->s_fs_info;
-+ squashfs_super_block *sBlk = &msBlk->sBlk;
-+ int next_block = SQUASHFS_I(i)->start_block + sBlk->directory_table_start, next_offset =
-+ SQUASHFS_I(i)->offset, length = 0, dir_count;
-+ squashfs_dir_header dirh;
-+ char buffer[sizeof(squashfs_dir_entry) + SQUASHFS_NAME_LEN];
-+ squashfs_dir_entry *dire = (squashfs_dir_entry *) buffer;
-+ int squashfs_2_1 = sBlk->s_major == 2 && sBlk->s_minor == 1;
-+
-+ TRACE("Entered squashfs_lookup [%x:%x]\n", next_block, next_offset);
-+
-+ lock_kernel();
-+
-+ 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->i_size) {
++ 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;
++ char buffer[sizeof(struct squashfs_dir_entry) + SQUASHFS_NAME_LEN];
++ struct squashfs_dir_entry *dire = (struct squashfs_dir_entry *) buffer;
++
++ TRACE("Entered squashfs_lookup [%llx:%x]\n", next_block, next_offset);
++
++ 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) {
-+ squashfs_dir_header sdirh;
-+ if(!squashfs_get_cached_block(i->i_sb, (char *) &sdirh, next_block, next_offset,
-+ sizeof(sdirh), &next_block, &next_offset))
++ if (msblk->swap) {
++ struct squashfs_dir_header 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(&dirh, &sdirh);
+ } else {
-+ if(!squashfs_get_cached_block(i->i_sb, (char *) &dirh, next_block, next_offset,
-+ sizeof(dirh), &next_block, &next_offset))
++ 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) {
-+ squashfs_dir_entry sdire;
-+ if(!squashfs_get_cached_block(i->i_sb, (char *) &sdire,
-+ next_block,next_offset, sizeof(sdire), &next_block, &next_offset))
++ while (dir_count--) {
++ if (msblk->swap) {
++ struct squashfs_dir_entry 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(dire, &sdire);
+ } else {
-+ if(!squashfs_get_cached_block(i->i_sb, (char *) dire,
-+ next_block,next_offset, sizeof(*dire), &next_block, &next_offset))
++ 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))
++ 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(squashfs_2_1 && name[0] < dire->name[0])
++ if (name[0] < dire->name[0])
+ goto exit_loop;
+
-+ if((len == dire->size + 1) && !strncmp(name, dire->name, len)) {
-+ squashfs_inode ino = SQUASHFS_MKINODE(dirh.start_block, dire->offset);
++ 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\n",
-+ name, 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 = (msBlk->iget)(i->i_sb, ino);
++ inode = (msblk->iget)(i->i_sb, ino);
+
+ goto exit_loop;
+ }
+
+exit_loop:
+ d_add(dentry, inode);
-+ unlock_kernel();
+ return ERR_PTR(0);
+
+failed_read:
-+ ERROR("Unable to read directory block [%x:%x]\n", next_block, next_offset);
++ ERROR("Unable to read directory block [%llx:%x]\n", next_block,
++ next_offset);
+ goto exit_loop;
+}
+
+{
+ int i;
+
-+ if(s->s_fs_info) {
-+ squashfs_sb_info *sbi = (squashfs_sb_info *) 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)
++ 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)
+ kfree(sbi->block_cache[i].data);
-+ kfree(sbi->block_cache);
-+ }
-+ if(sbi->read_data) kfree(sbi->read_data);
-+ if(sbi->read_page) kfree(sbi->read_page);
-+ if(sbi->uid) kfree(sbi->uid);
-+ if(sbi->fragment) {
-+ for(i = 0; i < SQUASHFS_CACHED_FRAGMENTS; i++)
-+ if(sbi->fragment[i].data != NULL)
-+ SQUASHFS_FREE(sbi->fragment[i].data);
-+ kfree(sbi->fragment);
-+ }
-+ if(sbi->fragment_index) kfree(sbi->fragment_index);
++ if (sbi->fragment)
++ for (i = 0; i < SQUASHFS_CACHED_FRAGMENTS; i++)
++ SQUASHFS_FREE(sbi->fragment[i].data);
++ kfree(sbi->fragment);
++ kfree(sbi->block_cache);
++ kfree(sbi->read_data);
++ kfree(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 struct super_block *squashfs_get_sb(struct file_system_type *fs_type, int flags, const char *dev_name, void *data)
++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);
++ return get_sb_bdev(fs_type, flags, dev_name, data, squashfs_fill_super, mnt);
+}
+
+
+static int __init init_squashfs_fs(void)
+{
+ int err = init_inodecache();
-+ if(err)
-+ return err;
++ if (err)
++ goto out;
+
-+ printk(KERN_INFO "Squashfs 2.2 (released 2005/07/03) (C) 2002-2005 Phillip Lougher\n");
++ printk(KERN_INFO "squashfs: version 3.0 (2006/03/15) "
++ "Phillip Lougher\n");
+
-+ if(!(stream.workspace = (char *) vmalloc(zlib_inflate_workspacesize()))) {
++ if (!(stream.workspace = vmalloc(zlib_inflate_workspacesize()))) {
+ ERROR("Failed to allocate zlib workspace\n");
+ destroy_inodecache();
-+ return -ENOMEM;
++ err = -ENOMEM;
++ goto out;
+ }
+
-+ if((err = register_filesystem(&squashfs_fs_type))) {
++ if ((err = register_filesystem(&squashfs_fs_type))) {
+ vfree(stream.workspace);
+ destroy_inodecache();
+ }
+
++out:
+ return err;
+}
+
+}
+
+
-+static kmem_cache_t * squashfs_inode_cachep;
++static struct kmem_cache * squashfs_inode_cachep;
+
+
+static struct inode *squashfs_alloc_inode(struct super_block *sb)
+{
+ struct squashfs_inode_info *ei;
-+ ei = (struct squashfs_inode_info *)kmem_cache_alloc(squashfs_inode_cachep, SLAB_KERNEL);
++ ei = kmem_cache_alloc(squashfs_inode_cachep, GFP_KERNEL);
+ if (!ei)
+ return NULL;
+ return &ei->vfs_inode;
+}
+
+
-+static void init_once(void * foo, kmem_cache_t * cachep, unsigned long flags)
++static void init_once(void * foo, struct kmem_cache * cachep, unsigned long flags)
+{
-+ struct squashfs_inode_info *ei = (struct squashfs_inode_info *) foo;
++ struct squashfs_inode_info *ei = foo;
+
+ if ((flags & (SLAB_CTOR_VERIFY|SLAB_CTOR_CONSTRUCTOR)) ==
-+ SLAB_CTOR_CONSTRUCTOR)
++ SLAB_CTOR_CONSTRUCTOR)
+ inode_init_once(&ei->vfs_inode);
+}
-+
+
-+static int init_inodecache(void)
++
++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, NULL);
++ sizeof(struct squashfs_inode_info),
++ 0, SLAB_HWCACHE_ALIGN|SLAB_RECLAIM_ACCOUNT,
++ init_once, NULL);
+ if (squashfs_inode_cachep == NULL)
+ return -ENOMEM;
+ return 0;
+
+static void destroy_inodecache(void)
+{
-+ if (kmem_cache_destroy(squashfs_inode_cachep))
-+ printk(KERN_INFO "squashfs_inode_cache: not all structures were freed\n");
++ kmem_cache_destroy(squashfs_inode_cachep);
+}
+
+
+module_init(init_squashfs_fs);
+module_exit(exit_squashfs_fs);
+MODULE_DESCRIPTION("squashfs, a compressed read-only filesystem");
-+MODULE_AUTHOR("Phillip Lougher <phillip@lougher.demon.co.uk>");
++MODULE_AUTHOR("Phillip Lougher <phillip@lougher.org.uk>");
+MODULE_LICENSE("GPL");
-diff --new-file -urp linux-2.6.12/fs/squashfs/Makefile linux-2.6.12-squashfs2.2/fs/squashfs/Makefile
---- linux-2.6.12/fs/squashfs/Makefile 1970-01-01 01:00:00.000000000 +0100
-+++ linux-2.6.12-squashfs2.2/fs/squashfs/Makefile 2005-07-04 02:35:35.000000000 +0100
+diff -urN linux-2.6.21.1.old/fs/squashfs/Makefile linux-2.6.21.1.dev/fs/squashfs/Makefile
+--- linux-2.6.21.1.old/fs/squashfs/Makefile 1970-01-01 01:00:00.000000000 +0100
++++ linux-2.6.21.1.dev/fs/squashfs/Makefile 2007-05-26 19:00:37.123351456 +0200
@@ -0,0 +1,7 @@
+#
+# Makefile for the linux squashfs routines.
+#
+
+obj-$(CONFIG_SQUASHFS) += squashfs.o
++squashfs-y += inode.o
++squashfs-y += squashfs2_0.o
+diff -urN linux-2.6.21.1.old/fs/squashfs/squashfs2_0.c linux-2.6.21.1.dev/fs/squashfs/squashfs2_0.c
+--- linux-2.6.21.1.old/fs/squashfs/squashfs2_0.c 1970-01-01 01:00:00.000000000 +0100
++++ linux-2.6.21.1.dev/fs/squashfs/squashfs2_0.c 2007-05-26 19:00:37.125351152 +0200
+@@ -0,0 +1,758 @@
++/*
++ * Squashfs - a compressed read only filesystem for Linux
++ *
++ * Copyright (c) 2002, 2003, 2004, 2005, 2006
++ * Phillip Lougher <phillip@lougher.org.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/types.h>
++#include <linux/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 <linux/squashfs_fs_sb.h>
++#include <linux/squashfs_fs_i.h>
++#include <linux/buffer_head.h>
++#include <linux/vfs.h>
++#include <linux/init.h>
++#include <linux/dcache.h>
++#include <linux/wait.h>
++#include <linux/zlib.h>
++#include <linux/blkdev.h>
++#include <linux/vmalloc.h>
++#include <asm/uaccess.h>
++#include <asm/semaphore.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)) {
++ 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 struct inode *squashfs_new_inode(struct super_block *s,
++ struct squashfs_base_inode_header_2 *inodeb, unsigned int ino)
++{
++ struct squashfs_sb_info *msblk = s->s_fs_info;
++ struct squashfs_super_block *sblk = &msblk->sblk;
++ struct inode *i = new_inode(s);
++
++ if (i) {
++ 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];
++ }
++
++ return i;
++}
+
-+squashfs-objs := inode.o
-diff --new-file -urp linux-2.6.12/include/linux/squashfs_fs.h linux-2.6.12-squashfs2.2/include/linux/squashfs_fs.h
---- linux-2.6.12/include/linux/squashfs_fs.h 1970-01-01 01:00:00.000000000 +0100
-+++ linux-2.6.12-squashfs2.2/include/linux/squashfs_fs.h 2005-07-04 02:35:35.000000000 +0100
-@@ -0,0 +1,519 @@
++
++static struct inode *squashfs_iget_2(struct super_block *s, squashfs_inode_t inode)
++{
++ struct inode *i;
++ 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_iget\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;
++
++ 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;
++
++ 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;
++
++ if((i = squashfs_new_inode(s, inodeb, ino)) == NULL)
++ goto failed_read1;
++
++ 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;
++ i->i_blksize = PAGE_CACHE_SIZE;
++ 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;
++ if (sblk->block_size > 4096)
++ i->i_data.a_ops = &squashfs_aops;
++ else
++ i->i_data.a_ops = &squashfs_aops_4K;
++
++ 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;
++
++ if((i = squashfs_new_inode(s, inodeb, ino)) == NULL)
++ goto failed_read1;
++
++ 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;
++
++ if((i = squashfs_new_inode(s, inodeb, ino)) == NULL)
++ goto failed_read1;
++
++ 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;
++
++ if((i = squashfs_new_inode(s, inodeb, ino)) == NULL)
++ goto failed_read1;
++
++ 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;
++
++ if ((i = squashfs_new_inode(s, inodeb, ino)) == NULL)
++ goto failed_read1;
++
++ 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: {
++ if ((i = squashfs_new_inode(s, inodeb, ino)) == NULL)
++ goto failed_read1;
++
++ 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;
++ }
++
++ insert_inode_hash(i);
++ return i;
++
++failed_read:
++ ERROR("Unable to read inode [%x:%x]\n", block, offset);
++
++failed_read1:
++ return NULL;
++}
++
++
++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;
++ char buffer[sizeof(struct squashfs_dir_index_2) + SQUASHFS_NAME_LEN + 1];
++ struct squashfs_dir_index_2 *index = (struct squashfs_dir_index_2 *) buffer;
++ char str[SQUASHFS_NAME_LEN + 1];
++
++ TRACE("Entered get_dir_index_using_name, i_count %d\n", i_count);
++
++ 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;
++ 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, dirs_read = 0,
++ dir_count;
++ struct squashfs_dir_header_2 dirh;
++ char buffer[sizeof(struct squashfs_dir_entry_2) + SQUASHFS_NAME_LEN + 1];
++ struct squashfs_dir_entry_2 *dire = (struct squashfs_dir_entry_2 *) buffer;
++
++ TRACE("Entered squashfs_readdir_2 [%llx:%x]\n", next_block, next_offset);
++
++ 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;
++ dirs_read++;
++ }
++ }
++
++finish:
++ return dirs_read;
++
++failed_read:
++ ERROR("Unable to read directory block [%llx:%x]\n", next_block,
++ next_offset);
++ 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;
++ char buffer[sizeof(struct squashfs_dir_entry_2) + SQUASHFS_NAME_LEN];
++ struct squashfs_dir_entry_2 *dire = (struct squashfs_dir_entry_2 *) buffer;
++ int sorted = sblk->s_major == 2 && sblk->s_minor >= 1;
++
++ TRACE("Entered squashfs_lookup [%llx:%x]\n", next_block, next_offset);
++
++ 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);
++
++ TRACE("calling squashfs_iget for directory "
++ "entry %s, inode %x:%x, %lld\n", name,
++ dirh.start_block, dire->offset, ino);
++
++ inode = (msblk->iget)(i->i_sb, ino);
++
++ goto exit_loop;
++ }
++ }
++ }
++
++exit_loop:
++ 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->iget = squashfs_iget_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-2.6.21.1.old/fs/squashfs/squashfs.h linux-2.6.21.1.dev/fs/squashfs/squashfs.h
+--- linux-2.6.21.1.old/fs/squashfs/squashfs.h 1970-01-01 01:00:00.000000000 +0100
++++ linux-2.6.21.1.dev/fs/squashfs/squashfs.h 2007-05-26 19:00:37.125351152 +0200
+@@ -0,0 +1,86 @@
++/*
++ * Squashfs - a compressed read only filesystem for Linux
++ *
++ * Copyright (c) 2002, 2003, 2004, 2005, 2006
++ * Phillip Lougher <phillip@lougher.org.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);
++extern int squashfs_get_cached_block(struct super_block *s, char *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 address_space_operations squashfs_symlink_aops;
++extern struct address_space_operations squashfs_aops;
++extern struct address_space_operations squashfs_aops_4K;
++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-2.6.21.1.old/include/linux/squashfs_fs.h linux-2.6.21.1.dev/include/linux/squashfs_fs.h
+--- linux-2.6.21.1.old/include/linux/squashfs_fs.h 1970-01-01 01:00:00.000000000 +0100
++++ linux-2.6.21.1.dev/include/linux/squashfs_fs.h 2007-05-26 19:00:37.143348416 +0200
+@@ -0,0 +1,911 @@
+#ifndef SQUASHFS_FS
+#define SQUASHFS_FS
++
+/*
+ * Squashfs
+ *
-+ * Copyright (c) 2002, 2003, 2004, 2005 Phillip Lougher <phillip@lougher.demon.co.uk>
++ * Copyright (c) 2002, 2003, 2004, 2005, 2006
++ * Phillip Lougher <phillip@lougher.org.uk>
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * squashfs_fs.h
+ */
+
++#ifndef CONFIG_SQUASHFS_2_0_COMPATIBILITY
++#define CONFIG_SQUASHFS_2_0_COMPATIBILITY
++#endif
++
+#ifdef CONFIG_SQUASHFS_VMALLOC
+#define SQUASHFS_ALLOC(a) vmalloc(a)
+#define SQUASHFS_FREE(a) vfree(a)
+#define SQUASHFS_ALLOC(a) kmalloc(a, GFP_KERNEL)
+#define SQUASHFS_FREE(a) kfree(a)
+#endif
-+#define SQUASHFS_CACHED_FRAGMENTS CONFIG_SQUASHFS_FRAGMENT_CACHE_SIZE
-+#define SQUASHFS_MAJOR 2
-+#define SQUASHFS_MINOR 1
++#define SQUASHFS_CACHED_FRAGMENTS CONFIG_SQUASHFS_FRAGMENT_CACHE_SIZE
++#define SQUASHFS_MAJOR 3
++#define SQUASHFS_MINOR 0
+#define SQUASHFS_MAGIC 0x73717368
+#define SQUASHFS_MAGIC_SWAP 0x68737173
+#define SQUASHFS_START 0
+#define SQUASHFS_NAME_LEN 256
+
+#define SQUASHFS_INVALID ((long long) 0xffffffffffff)
-+#define SQUASHFS_INVALID_BLK ((long long) 0xffffffff)
-+#define SQUASHFS_USED_BLK ((long long) 0xfffffffe)
++#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_NO_FRAG 4
+#define SQUASHFS_ALWAYS_FRAG 5
+#define SQUASHFS_DUPLICATE 6
++
+#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_CHECK_DATA(flags) SQUASHFS_BIT(flags, SQUASHFS_CHECK)
-+#define SQUASHFS_MKFLAGS(noi, nod, check_data, nof, no_frag, always_frag, duplicate_checking) (noi | (nod << 1) | (check_data << 2) | (nof << 3) | (no_frag << 4) | (always_frag << 5) | (duplicate_checking << 6))
++
++#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_CHECK_DATA(flags) SQUASHFS_BIT(flags, \
++ SQUASHFS_CHECK)
++
++#define SQUASHFS_MKFLAGS(noi, nod, check_data, nof, no_frag, always_frag, \
++ duplicate_checking) (noi | (nod << 1) | (check_data << 2) \
++ | (nof << 3) | (no_frag << 4) | (always_frag << 5) | \
++ (duplicate_checking << 6))
+
+/* Max number of types and file types */
+#define SQUASHFS_DIR_TYPE 1
+#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 */
++/* 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)
++ (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) ? \
-+ (B) & ~SQUASHFS_COMPRESSED_BIT_BLOCK : SQUASHFS_COMPRESSED_BIT_BLOCK)
+
-+#define SQUASHFS_COMPRESSED_BLOCK(B) (!((B) & SQUASHFS_COMPRESSED_BIT_BLOCK))
++#define SQUASHFS_COMPRESSED_SIZE_BLOCK(B) (((B) & \
++ ~SQUASHFS_COMPRESSED_BIT_BLOCK) ? (B) & \
++ ~SQUASHFS_COMPRESSED_BIT_BLOCK : 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
++ * 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)(((squashfs_inode) (A) << 16)\
-+ + (B)))
++
++#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))
++#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 */
-+typedef unsigned int squashfs_fragment_index;
-+#define SQUASHFS_FRAGMENT_BYTES(A) (A * sizeof(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(squashfs_fragment_index))
++#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))
+
+/* cached data constants for filesystem */
+#define SQUASHFS_CACHED_BLKS 8
+
-+#define SQUASHFS_MAX_FILE_SIZE_LOG 32
-+#define SQUASHFS_MAX_FILE_SIZE ((long long) 1 << (SQUASHFS_MAX_FILE_SIZE_LOG - 1))
++#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 unsigned int squashfs_block;
-+typedef long long squashfs_inode;
++typedef long long squashfs_block_t;
++typedef long long squashfs_inode_t;
+
-+typedef unsigned int squashfs_uid;
-+
-+typedef struct squashfs_super_block {
++struct squashfs_super_block {
+ unsigned int s_magic;
+ unsigned int inodes;
-+ unsigned int bytes_used;
-+ unsigned int uid_start;
-+ unsigned int guid_start;
-+ unsigned int inode_table_start;
-+ unsigned int directory_table_start;
++ 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 no_uids:8;
+ unsigned int no_guids:8;
+ unsigned int mkfs_time /* time of filesystem creation */;
-+ squashfs_inode root_inode;
++ squashfs_inode_t root_inode;
+ unsigned int block_size;
+ unsigned int fragments;
-+ unsigned int fragment_table_start;
-+} __attribute__ ((packed)) squashfs_super_block;
-+
-+typedef struct {
-+ unsigned int index:27;
-+ unsigned int start_block:29;
++ 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 unused;
++} __attribute__ ((packed));
++
++struct squashfs_dir_index {
++ unsigned int index;
++ unsigned int start_block;
+ unsigned char size;
+ unsigned char name[0];
-+} __attribute__ ((packed)) squashfs_dir_index;
-+
-+typedef struct {
-+ 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)) squashfs_base_inode_header;
-+
-+typedef squashfs_base_inode_header squashfs_ipc_inode_header;
-+
-+typedef struct {
-+ 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));
++
++#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)) squashfs_dev_inode_header;
-+
-+typedef struct {
-+ 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_symlink_inode_header {
++ SQUASHFS_BASE_INODE_HEADER;
++ unsigned int nlink;
+ unsigned short symlink_size;
+ char symlink[0];
-+} __attribute__ ((packed)) squashfs_symlink_inode_header;
++} __attribute__ ((packed));
+
-+typedef struct {
-+ 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;
-+ squashfs_block start_block;
++struct squashfs_reg_inode_header {
++ SQUASHFS_BASE_INODE_HEADER;
++ squashfs_block_t start_block;
+ unsigned int fragment;
+ unsigned int offset;
-+ unsigned int file_size:SQUASHFS_MAX_FILE_SIZE_LOG;
++ unsigned int file_size;
+ unsigned short block_list[0];
-+} __attribute__ ((packed)) squashfs_reg_inode_header;
++} __attribute__ ((packed));
+
-+typedef struct {
-+ 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 */
++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 mtime;
-+ unsigned int start_block:24;
-+} __attribute__ ((packed)) squashfs_dir_inode_header;
++ unsigned int start_block;
++ unsigned int parent_inode;
++} __attribute__ ((packed));
+
-+typedef struct {
-+ 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 */
++struct squashfs_ldir_inode_header {
++ SQUASHFS_BASE_INODE_HEADER;
++ unsigned int nlink;
+ unsigned int file_size:27;
+ unsigned int offset:13;
-+ unsigned int mtime;
-+ unsigned int start_block:24;
++ unsigned int start_block;
+ unsigned int i_count:16;
-+ squashfs_dir_index index[0];
-+} __attribute__ ((packed)) squashfs_ldir_inode_header;
-+
-+typedef union {
-+ squashfs_base_inode_header base;
-+ squashfs_dev_inode_header dev;
-+ squashfs_symlink_inode_header symlink;
-+ squashfs_reg_inode_header reg;
-+ squashfs_dir_inode_header dir;
-+ squashfs_ldir_inode_header ldir;
-+ squashfs_ipc_inode_header ipc;
-+} squashfs_inode_header;
-+
-+typedef struct {
++ 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;
++ int inode_number:16;
+ char name[0];
-+} __attribute__ ((packed)) squashfs_dir_entry;
++} __attribute__ ((packed));
+
-+typedef struct {
++struct squashfs_dir_header {
+ unsigned int count:8;
-+ unsigned int start_block:24;
-+} __attribute__ ((packed)) squashfs_dir_header;
-+
-+typedef struct {
+ unsigned int start_block;
++ unsigned int inode_number;
++} __attribute__ ((packed));
++
++struct squashfs_fragment_entry {
++ long long start_block;
+ unsigned int size;
-+} __attribute__ ((packed)) squashfs_fragment_entry;
++ unsigned int unused;
++} __attribute__ ((packed));
+
+extern int squashfs_uncompress_block(void *d, int dstlen, void *s, int srclen);
+extern int squashfs_uncompress_init(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.
++ * 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_MEMSET(s, d, sizeof(squashfs_super_block));\
++ 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, d, 64, 32);\
-+ SQUASHFS_SWAP((s)->uid_start, d, 96, 32);\
-+ SQUASHFS_SWAP((s)->guid_start, d, 128, 32);\
-+ SQUASHFS_SWAP((s)->inode_table_start, d, 160, 32);\
-+ SQUASHFS_SWAP((s)->directory_table_start, d, 192, 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)->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, d, 472, 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)->unused, d, 888, 64);\
+}
+
-+#define SQUASHFS_SWAP_BASE_INODE_HEADER(s, d, n) {\
++#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_BASE_INODE_HEADER(s, d, sizeof(squashfs_ipc_inode_header))
++#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_BASE_INODE_HEADER(s, d, sizeof(squashfs_dev_inode_header));\
-+ SQUASHFS_SWAP((s)->rdev, d, 32, 16);\
++ 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_BASE_INODE_HEADER(s, d, sizeof(squashfs_symlink_inode_header));\
-+ SQUASHFS_SWAP((s)->symlink_size, d, 32, 16);\
++ 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_BASE_INODE_HEADER(s, d, sizeof(squashfs_reg_inode_header));\
-+ 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, SQUASHFS_MAX_FILE_SIZE_LOG);\
++ 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_BASE_INODE_HEADER(s, d, sizeof(squashfs_dir_inode_header));\
-+ 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);\
++ 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_BASE_INODE_HEADER(s, d, sizeof(squashfs_ldir_inode_header));\
-+ 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);\
++ 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_MEMSET(s, d, sizeof(squashfs_dir_index));\
-+ SQUASHFS_SWAP((s)->index, d, 0, 27);\
-+ SQUASHFS_SWAP((s)->start_block, d, 27, 29);\
-+ SQUASHFS_SWAP((s)->size, d, 56, 8);\
++ 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_MEMSET(s, d, sizeof(squashfs_dir_header));\
++ 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, 24);\
++ SQUASHFS_SWAP((s)->start_block, d, 8, 32);\
++ SQUASHFS_SWAP((s)->inode_number, d, 40, 32);\
+}
+
+#define SQUASHFS_SWAP_DIR_ENTRY(s, d) {\
-+ SQUASHFS_MEMSET(s, d, sizeof(squashfs_dir_entry));\
++ 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_MEMSET(s, d, sizeof(squashfs_fragment_entry));\
-+ SQUASHFS_SWAP((s)->start_block, d, 0, 32);\
-+ SQUASHFS_SWAP((s)->size, d, 32, 32);\
++ 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_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)\
++ 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)\
++ 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)\
++ 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_INTS(s, d, n)
++#define SQUASHFS_SWAP_FRAGMENT_INDEXES(s, d, n) SQUASHFS_SWAP_LONG_LONGS(s, d, n)
++
++#ifdef CONFIG_SQUASHFS_1_0_COMPATIBILITY
+
-+#ifdef SQUASHFS_1_0_COMPATIBILITY
-+typedef struct {
++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)) squashfs_base_inode_header_1;
++} __attribute__ ((packed));
+
-+typedef struct {
++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)) squashfs_ipc_inode_header_1;
++} __attribute__ ((packed));
+
-+typedef struct {
++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)) squashfs_dev_inode_header_1;
-+
-+typedef struct {
++} __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)) squashfs_symlink_inode_header_1;
++} __attribute__ ((packed));
+
-+typedef struct {
++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;
-+ squashfs_block start_block;
-+ unsigned int file_size:SQUASHFS_MAX_FILE_SIZE_LOG;
++ unsigned int start_block;
++ unsigned int file_size:32;
+ unsigned short block_list[0];
-+} __attribute__ ((packed)) squashfs_reg_inode_header_1;
++} __attribute__ ((packed));
+
-+typedef struct {
++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 offset:13;
+ unsigned int mtime;
+ unsigned int start_block:24;
-+} __attribute__ ((packed)) squashfs_dir_inode_header_1;
++} __attribute__ ((packed));
+
-+#define SQUASHFS_SWAP_BASE_INODE_HEADER_1(s, d, n) {\
++#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);\
++ 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_BASE_INODE_HEADER_1(s, d, sizeof(squashfs_ipc_inode_header_1));\
++ 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_BASE_INODE_HEADER_1(s, d, sizeof(squashfs_dev_inode_header_1));\
++ 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_BASE_INODE_HEADER(s, d, sizeof(squashfs_symlink_inode_header_1));\
++ 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_BASE_INODE_HEADER(s, d, sizeof(squashfs_reg_inode_header_1));\
++ 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, SQUASHFS_MAX_FILE_SIZE_LOG);\
++ SQUASHFS_SWAP((s)->file_size, d, 88, 32);\
+}
+
+#define SQUASHFS_SWAP_DIR_INODE_HEADER_1(s, d) {\
-+ SQUASHFS_SWAP_BASE_INODE_HEADER(s, d, sizeof(squashfs_dir_inode_header_1));\
++ 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
++ * 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)
++#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)
++ /* 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) {\
-+ int bits;\
-+ int b_pos = pos % 8;\
-+ unsigned long long val = 0;\
-+ unsigned char *s = (unsigned char *)p + (pos / 8);\
-+ unsigned char *d = ((unsigned char *) &val) + 7;\
++ 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 --new-file -urp linux-2.6.12/include/linux/squashfs_fs_i.h linux-2.6.12-squashfs2.2/include/linux/squashfs_fs_i.h
---- linux-2.6.12/include/linux/squashfs_fs_i.h 1970-01-01 01:00:00.000000000 +0100
-+++ linux-2.6.12-squashfs2.2/include/linux/squashfs_fs_i.h 2005-07-04 02:35:35.000000000 +0100
-@@ -0,0 +1,43 @@
+diff -urN linux-2.6.21.1.old/include/linux/squashfs_fs_i.h linux-2.6.21.1.dev/include/linux/squashfs_fs_i.h
+--- linux-2.6.21.1.old/include/linux/squashfs_fs_i.h 1970-01-01 01:00:00.000000000 +0100
++++ linux-2.6.21.1.dev/include/linux/squashfs_fs_i.h 2007-05-26 19:00:37.143348416 +0200
+@@ -0,0 +1,45 @@
+#ifndef SQUASHFS_FS_I
+#define SQUASHFS_FS_I
+/*
+ * Squashfs
+ *
-+ * Copyright (c) 2002, 2003, 2004, 2005 Phillip Lougher <phillip@lougher.demon.co.uk>
++ * Copyright (c) 2002, 2003, 2004, 2005, 2006
++ * Phillip Lougher <phillip@lougher.org.uk>
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * squashfs_fs_i.h
+ */
+
-+typedef struct squashfs_inode_info {
-+ unsigned int start_block;
-+ unsigned int block_list_start;
++struct squashfs_inode_info {
++ long long start_block;
+ unsigned int offset;
+ union {
+ struct {
-+ unsigned int fragment_start_block;
++ long long fragment_start_block;
+ unsigned int fragment_size;
+ unsigned int fragment_offset;
++ long long block_list_start;
+ } s1;
+ struct {
-+ unsigned int directory_index_start;
++ 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;
-+ } squashfs_inode_info;
++};
+#endif
-diff --new-file -urp linux-2.6.12/include/linux/squashfs_fs_sb.h linux-2.6.12-squashfs2.2/include/linux/squashfs_fs_sb.h
---- linux-2.6.12/include/linux/squashfs_fs_sb.h 1970-01-01 01:00:00.000000000 +0100
-+++ linux-2.6.12-squashfs2.2/include/linux/squashfs_fs_sb.h 2005-07-04 02:35:35.000000000 +0100
-@@ -0,0 +1,65 @@
+diff -urN linux-2.6.21.1.old/include/linux/squashfs_fs_sb.h linux-2.6.21.1.dev/include/linux/squashfs_fs_sb.h
+--- linux-2.6.21.1.old/include/linux/squashfs_fs_sb.h 1970-01-01 01:00:00.000000000 +0100
++++ linux-2.6.21.1.dev/include/linux/squashfs_fs_sb.h 2007-05-26 19:00:37.144348264 +0200
+@@ -0,0 +1,74 @@
+#ifndef SQUASHFS_FS_SB
+#define SQUASHFS_FS_SB
+/*
+ * Squashfs
+ *
-+ * Copyright (c) 2002, 2003, 2004, 2005 Phillip Lougher <phillip@lougher.demon.co.uk>
++ * Copyright (c) 2002, 2003, 2004, 2005, 2006
++ * Phillip Lougher <phillip@lougher.org.uk>
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+
+#include <linux/squashfs_fs.h>
+
-+typedef struct {
-+ unsigned int block;
++struct squashfs_cache {
++ long long block;
+ int length;
-+ unsigned int next_index;
++ long long next_index;
+ char *data;
-+ } squashfs_cache;
++};
+
+struct squashfs_fragment_cache {
-+ unsigned int block;
++ long long block;
+ int length;
+ unsigned int locked;
+ char *data;
-+ };
++};
+
-+typedef struct squashfs_sb_info {
-+ squashfs_super_block sBlk;
++struct squashfs_sb_info {
++ struct squashfs_super_block sblk;
+ int devblksize;
+ int devblksize_log2;
+ int swap;
-+ squashfs_cache *block_cache;
++ struct squashfs_cache *block_cache;
+ struct squashfs_fragment_cache *fragment;
+ int next_cache;
+ int next_fragment;
-+ squashfs_uid *uid;
-+ squashfs_uid *guid;
-+ squashfs_fragment_index *fragment_index;
++ int next_meta_index;
++ unsigned int *uid;
++ unsigned int *guid;
++ long long *fragment_index;
++ unsigned int *fragment_index_2;
+ unsigned int read_size;
+ char *read_data;
+ char *read_page;
++ struct semaphore read_data_mutex;
+ struct semaphore read_page_mutex;
+ struct semaphore block_cache_mutex;
+ struct semaphore fragment_mutex;
++ struct semaphore meta_index_mutex;
+ wait_queue_head_t waitq;
+ wait_queue_head_t fragment_wait_queue;
-+ struct inode *(*iget)(struct super_block *s, squashfs_inode inode);
-+ unsigned int (*read_blocklist)(struct inode *inode, int index, int readahead_blks,
-+ char *block_list, unsigned short **block_p, unsigned int *bsize);
-+ } squashfs_sb_info;
++ struct meta_index *meta_index;
++ struct inode *(*iget)(struct super_block *s, 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 --new-file -urp linux-2.6.12/init/do_mounts_rd.c linux-2.6.12-squashfs2.2/init/do_mounts_rd.c
---- linux-2.6.12/init/do_mounts_rd.c 2005-06-17 20:48:29.000000000 +0100
-+++ linux-2.6.12-squashfs2.2/init/do_mounts_rd.c 2005-07-04 02:35:35.000000000 +0100
+diff -urN linux-2.6.21.1.old/init/do_mounts_rd.c linux-2.6.21.1.dev/init/do_mounts_rd.c
+--- linux-2.6.21.1.old/init/do_mounts_rd.c 2007-04-27 23:49:26.000000000 +0200
++++ linux-2.6.21.1.dev/init/do_mounts_rd.c 2007-05-26 19:00:37.144348264 +0200
@@ -5,6 +5,7 @@
#include <linux/ext2_fs.h>
#include <linux/romfs_fs.h>
#include <linux/initrd.h>
#include <linux/string.h>
-@@ -39,6 +40,7 @@ static int __init crd_load(int in_fd, in
+@@ -39,6 +40,7 @@
* numbers could not be found.
*
* We currently check for the following magic numbers:
* minix
* ext2
* romfs
-@@ -53,6 +55,7 @@ identify_ramdisk_image(int fd, int start
+@@ -53,6 +55,7 @@
struct ext2_super_block *ext2sb;
struct romfs_super_block *romfsb;
struct cramfs_super *cramfsb;
int nblocks = -1;
unsigned char *buf;
-@@ -64,6 +67,7 @@ identify_ramdisk_image(int fd, int start
+@@ -64,6 +67,7 @@
ext2sb = (struct ext2_super_block *) buf;
romfsb = (struct romfs_super_block *) buf;
cramfsb = (struct cramfs_super *) buf;
memset(buf, 0xe5, size);
/*
-@@ -101,6 +105,15 @@ identify_ramdisk_image(int fd, int start
+@@ -101,6 +105,15 @@
goto done;
}
projects / openwrt.git / blobdiff