SOURCES: linux-2.4-squashfs.patch - original squashfs3.1 patch for...
hawk
hawk at pld-linux.org
Wed Aug 30 14:17:03 CEST 2006
Author: hawk Date: Wed Aug 30 12:17:03 2006 GMT
Module: SOURCES Tag: HEAD
---- Log message:
- original squashfs3.1 patch for 2.4.33
---- Files affected:
SOURCES:
linux-2.4-squashfs.patch (1.2 -> 1.3)
---- Diffs:
================================================================
Index: SOURCES/linux-2.4-squashfs.patch
diff -u SOURCES/linux-2.4-squashfs.patch:1.2 SOURCES/linux-2.4-squashfs.patch:1.3
--- SOURCES/linux-2.4-squashfs.patch:1.2 Fri Feb 11 10:19:25 2005
+++ SOURCES/linux-2.4-squashfs.patch Wed Aug 30 14:16:58 2006
@@ -1,18 +1,25 @@
-diff --new-file -ur linux-2.4.28/fs/Config.in linux-2.4.28-squashfs2.1-r2/fs/Config.in
---- linux-2.4.28/fs/Config.in 2004-11-17 11:54:21.000000000 +0000
-+++ linux-2.4.28-squashfs2.1-r2/fs/Config.in 2004-12-02 02:14:05.000000000 +0000
-@@ -51,6 +51,7 @@
+diff --new-file -urp linux-2.4.33/fs/Config.in linux-2.4.33-squashfs3.1/fs/Config.in
+--- linux-2.4.33/fs/Config.in 2004-11-17 11:54:21.000000000 +0000
++++ linux-2.4.33-squashfs3.1/fs/Config.in 2006-08-13 00:12:59.000000000 +0100
+@@ -51,6 +51,14 @@ if [ "$CONFIG_JFFS2_FS" = "y" -o "$CONFI
int 'JFFS2 debugging verbosity (0 = quiet, 2 = noisy)' CONFIG_JFFS2_FS_DEBUG 0
fi
tristate 'Compressed ROM file system support' CONFIG_CRAMFS
+tristate 'Squashed file system support' CONFIG_SQUASHFS
++if [ "$CONFIG_SQUASHFS" = "y" -o "$CONFIG_SQUASHFS" = "m" ] ; then
++bool 'Additional options for memory constrained systems ' CONFIG_SQUASHFS_EMBEDDED
++fi
++if [ "$CONFIG_SQUASHFS_EMBEDDED" = "y" ] ; then
++int 'Number of fragments cached' CONFIG_SQUASHFS_FRAGMENT_CACHE_SIZE 3
++bool 'Use Vmalloc rather than Kmalloc' CONFIG_SQUASHFS_VMALLOC
++fi
bool 'Virtual memory file system support (former shm fs)' CONFIG_TMPFS
define_bool CONFIG_RAMFS y
-diff --new-file -ur linux-2.4.28/fs/Makefile linux-2.4.28-squashfs2.1-r2/fs/Makefile
---- linux-2.4.28/fs/Makefile 2004-02-18 13:36:31.000000000 +0000
-+++ linux-2.4.28-squashfs2.1-r2/fs/Makefile 2004-12-02 02:14:05.000000000 +0000
-@@ -65,6 +65,7 @@
+diff --new-file -urp linux-2.4.33/fs/Makefile linux-2.4.33-squashfs3.1/fs/Makefile
+--- linux-2.4.33/fs/Makefile 2004-02-18 13:36:31.000000000 +0000
++++ linux-2.4.33-squashfs3.1/fs/Makefile 2006-08-13 00:12:59.000000000 +0100
+@@ -65,6 +65,7 @@ subdir-$(CONFIG_REISERFS_FS) += reiserfs
subdir-$(CONFIG_DEVPTS_FS) += devpts
subdir-$(CONFIG_SUN_OPENPROMFS) += openpromfs
subdir-$(CONFIG_BEFS_FS) += befs
@@ -20,14 +27,15 @@
subdir-$(CONFIG_JFS_FS) += jfs
subdir-$(CONFIG_XFS_FS) += xfs
-diff --new-file -ur linux-2.4.28/fs/squashfs/inode.c linux-2.4.28-squashfs2.1-r2/fs/squashfs/inode.c
---- linux-2.4.28/fs/squashfs/inode.c 1970-01-01 01:00:00.000000000 +0100
-+++ linux-2.4.28-squashfs2.1-r2/fs/squashfs/inode.c 2004-12-15 10:13:06.000000000 +0000
-@@ -0,0 +1,1677 @@
+diff --new-file -urp linux-2.4.33/fs/squashfs/inode.c linux-2.4.33-squashfs3.1/fs/squashfs/inode.c
+--- linux-2.4.33/fs/squashfs/inode.c 1970-01-01 01:00:00.000000000 +0100
++++ linux-2.4.33-squashfs3.1/fs/squashfs/inode.c 2006-08-20 01:08:52.000000000 +0100
+@@ -0,0 +1,2029 @@
+/*
+ * Squashfs - a compressed read only filesystem for Linux
+ *
-+ * Copyright (c) 2002, 2003, 2004 Phillip Lougher <plougher at users.sourceforge.net>
++ * Copyright (c) 2002, 2003, 2004, 2005, 2006
++ * Phillip Lougher <phillip at 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
@@ -42,39 +50,28 @@
+ * 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 - a compressed read only filesystem for Linux
+ *
+ * inode.c
+ */
+
-+#define SQUASHFS_1_0_COMPATIBILITY
-+
+#include <linux/types.h>
+#include <linux/squashfs_fs.h>
+#include <linux/module.h>
+#include <linux/errno.h>
+#include <linux/slab.h>
++#include <linux/zlib.h>
+#include <linux/fs.h>
++#include <linux/smp_lock.h>
+#include <linux/locks.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 struct super_block *squashfs_read_super(struct super_block *, void *, int);
+static void squashfs_put_super(struct super_block *);
@@ -84,26 +81,10 @@
+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 *);
-+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);
-+
-+#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;
++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 DECLARE_FSTYPE_DEV(squashfs_fs_type, "squashfs", squashfs_read_super);
+
@@ -112,144 +93,161 @@
+};
+
+static struct super_operations squashfs_ops = {
-+ statfs: squashfs_statfs,
-+ put_super: squashfs_put_super,
++ .statfs = squashfs_statfs,
++ .put_super = squashfs_put_super,
+};
+
-+static struct address_space_operations squashfs_symlink_aops = {
-+ readpage: squashfs_symlink_readpage
++SQSH_EXTERN struct address_space_operations squashfs_symlink_aops = {
++ .readpage = squashfs_symlink_readpage
+};
+
-+static struct address_space_operations squashfs_aops = {
-+ readpage: squashfs_readpage
++SQSH_EXTERN struct address_space_operations squashfs_aops = {
++ .readpage = squashfs_readpage
+};
+
-+static struct address_space_operations squashfs_aops_4K = {
-+ readpage: squashfs_readpage4K
++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
++ .read = generic_read_dir,
++ .readdir = squashfs_readdir
+};
+
+static struct inode_operations squashfs_dir_inode_ops = {
-+ lookup: squashfs_lookup
++ .lookup = squashfs_lookup
+};
+
-+
-+static struct buffer_head *get_block_length(struct super_block *s, int *cur_index, int *offset, int *c_byte)
++static struct buffer_head *get_block_length(struct super_block *s,
++ int *cur_index, int *offset, int *c_byte)
+{
-+ squashfs_sb_info *msBlk = &s->u.squashfs_sb;
++ struct squashfs_sb_info *msblk = &s->u.squashfs_sb;
+ unsigned short temp;
+ struct buffer_head *bh;
+
-+ if(!(bh = sb_bread(s, *cur_index)))
-+ return NULL;
++ if (!(bh = sb_bread(s, *cur_index)))
++ goto out;
+
-+ if(msBlk->devblksize - *offset == 1) {
-+ if(msBlk->swap)
-+ ((unsigned char *) &temp)[1] = *((unsigned char *) (bh->b_data + *offset));
++ if (msblk->devblksize - *offset == 1) {
++ if (msblk->swap)
++ ((unsigned char *) &temp)[1] = *((unsigned char *)
++ (bh->b_data + *offset));
+ else
-+ ((unsigned char *) &temp)[0] = *((unsigned char *) (bh->b_data + *offset));
++ ((unsigned char *) &temp)[0] = *((unsigned char *)
++ (bh->b_data + *offset));
+ brelse(bh);
-+ if(!(bh = sb_bread(s, ++(*cur_index))))
-+ return NULL;
-+ if(msBlk->swap)
-+ ((unsigned char *) &temp)[0] = *((unsigned char *) bh->b_data);
++ if (!(bh = sb_bread(s, ++(*cur_index))))
++ goto out;
++ if (msblk->swap)
++ ((unsigned char *) &temp)[0] = *((unsigned char *)
++ bh->b_data);
+ else
-+ ((unsigned char *) &temp)[1] = *((unsigned char *) bh->b_data);
++ ((unsigned char *) &temp)[1] = *((unsigned char *)
++ bh->b_data);
+ *c_byte = temp;
+ *offset = 1;
-+ }
-+ else {
-+ if(msBlk->swap) {
-+ unsigned short temp;
-+ ((unsigned char *) &temp)[1] = *((unsigned char *) (bh->b_data + *offset));
-+ ((unsigned char *) &temp)[0] = *((unsigned char *) (bh->b_data + *offset + 1));
-+ *c_byte = temp;
-+ } else
-+ *c_byte = *((unsigned short *) (bh->b_data + *offset));
++ } else {
++ if (msblk->swap) {
++ ((unsigned char *) &temp)[1] = *((unsigned char *)
++ (bh->b_data + *offset));
++ ((unsigned char *) &temp)[0] = *((unsigned char *)
++ (bh->b_data + *offset + 1));
++ } else {
++ ((unsigned char *) &temp)[0] = *((unsigned char *)
++ (bh->b_data + *offset));
++ ((unsigned char *) &temp)[1] = *((unsigned char *)
++ (bh->b_data + *offset + 1));
++ }
++ *c_byte = temp;
+ *offset += 2;
+ }
-+ if(SQUASHFS_CHECK_DATA(msBlk->sBlk.flags)) {
-+ if(*offset == msBlk->devblksize) {
++
++ if (SQUASHFS_CHECK_DATA(msblk->sblk.flags)) {
++ if (*offset == msblk->devblksize) {
+ brelse(bh);
-+ if(!(bh = sb_bread(s, ++(*cur_index))))
-+ return NULL;
-+ offset = 0;
-+ }
-+ if(*((unsigned char *) (bh->b_data + *offset)) != SQUASHFS_MARKER_BYTE) {
-+ ERROR("Metadata block marker corrupt @ %x\n", *cur_index);
++ if (!(bh = sb_bread(s, ++(*cur_index))))
++ goto out;
++ *offset = 0;
++ }
++ if (*((unsigned char *) (bh->b_data + *offset)) !=
++ SQUASHFS_MARKER_BYTE) {
++ ERROR("Metadata block marker corrupt @ %x\n",
++ *cur_index);
+ brelse(bh);
-+ return NULL;
++ goto out;
+ }
-+ *offset ++;
++ (*offset)++;
+ }
-+
+ return bh;
++
++out:
++ return NULL;
+}
+
+
-+static unsigned int read_data(struct super_block *s, char *buffer,
-+ unsigned int index, unsigned int length, unsigned int *next_index)
-+{
-+ squashfs_sb_info *msBlk = &s->u.squashfs_sb;
-+ 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;
++SQSH_EXTERN unsigned int squashfs_read_data(struct super_block *s, char *buffer,
++ long long index, unsigned int length,
++ long long *next_index)
++{
++ struct squashfs_sb_info *msblk = &s->u.squashfs_sb;
++ 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;
+ memcpy(c_buffer + bytes, bh[k]->b_data + offset, avail_bytes);
+ bytes += avail_bytes;
+ offset = 0;
@@ -259,831 +257,916 @@
+ /*
+ * 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);
++ msblk->stream.next_in = c_buffer;
++ msblk->stream.avail_in = c_byte;
++ msblk->stream.next_out = buffer;
++ msblk->stream.avail_out = msblk->read_size;
++
++ if (((zlib_err = zlib_inflateInit(&msblk->stream)) != Z_OK) ||
++ ((zlib_err = zlib_inflate(&msblk->stream, Z_FINISH))
++ != Z_STREAM_END) || ((zlib_err =
++ zlib_inflateEnd(&msblk->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);
++ bytes = msblk->stream.total_out;
++
++ up(&msblk->read_data_mutex);
+ }
+
-+ if(next_index)
-+ *next_index = index + c_byte + (length ? 0 : (SQUASHFS_CHECK_DATA(msBlk->sBlk.flags) ? 3 : 2));
-+
++ 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);
+ return 0;
+}
-+static int squashfs_get_cached_block(struct super_block *s, char *buffer,
-+ unsigned int block, unsigned int offset, int length,
-+ unsigned int *next_block, unsigned int *next_offset)
++
++
++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 = &s->u.squashfs_sb;
++ struct squashfs_sb_info *msblk = &s->u.squashfs_sb;
+ int n, i, bytes, return_length = length;
-+ unsigned int next_index;
++ long long next_index;
+
-+ TRACE("Entered squashfs_get_cached_block [%x:%x]\n", block, offset);
++ TRACE("Entered squashfs_get_cached_block [%llx:%x]\n", block, offset);
+
-+ for(;;) {
-+ for(i = 0; i < SQUASHFS_CACHED_BLKS; i++)
-+ if(msBlk->block_cache[i].block == block)
++ while ( 1 ) {
++ 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) {
-+ up(&msBlk->block_cache_mutex);
-+ sleep_on(&msBlk->waitq);
++
++ if (n == 0) {
++ wait_queue_t wait;
++
++ init_waitqueue_entry(&wait, current);
++ 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);
+ continue;
+ }
-+ msBlk->next_cache = (i + 1) % SQUASHFS_CACHED_BLKS;
++ 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;
++ 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)
-+{
-+ squashfs_sb_info *msBlk = &s->u.squashfs_sb;
-+ unsigned int start_block = msBlk->fragment_index[SQUASHFS_FRAGMENT_INDEX(fragment)];
++static int get_fragment_location(struct super_block *s, unsigned int fragment,
++ long long *fragment_start_block,
++ unsigned int *fragment_size)
++{
<<Diff was trimmed, longer than 597 lines>>
---- CVS-web:
http://cvs.pld-linux.org/SOURCES/linux-2.4-squashfs.patch?r1=1.2&r2=1.3&f=u
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