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move the lzma decompressor out of squashfs-lzma patch and into a new patch (i want to use it for initramfs in the future)

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git-svn-id: svn://svn.openwrt.org/openwrt/trunk@7001 3c298f89-4303-0410-b956-a3cf2f4a3e73
This commit is contained in:
nbd 2007-04-18 16:03:43 +00:00
parent c352f2f981
commit d18a9f7996
3 changed files with 124 additions and 123 deletions
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135
target/linux/generic-2.6/patches/002-squashfs_lzma.patch → target/linux/generic-2.6/patches/002-lzma_decompress.patch
View File

@ -1,114 +1,15 @@
diff -urN linux-2.6.19.old/fs/squashfs/inode.c linux-2.6.19.dev/fs/squashfs/inode.c --- linux-2.6.19.old/lib/Makefile 2007-04-18 17:41:22.679403384 +0200
--- linux-2.6.19.old/fs/squashfs/inode.c 2006-12-14 03:13:20.000000000 +0100 +++ linux-2.6.19.dev/lib/Makefile 2007-04-18 17:41:43.303268080 +0200
+++ linux-2.6.19.dev/fs/squashfs/inode.c 2006-12-14 03:13:20.000000000 +0100 @@ -54,6 +54,7 @@
@@ -4,6 +4,9 @@ obj-$(CONFIG_AUDIT_GENERIC) += audit.o
* Copyright (c) 2002, 2003, 2004, 2005, 2006
* Phillip Lougher <phillip@lougher.org.uk>
*
+ * LZMA decompressor support added by Oleg I. Vdovikin
+ * Copyright (c) 2005 Oleg I.Vdovikin <oleg@cs.msu.su>
+ *
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation; either version 2,
@@ -21,6 +24,7 @@
* inode.c
*/
+#define SQUASHFS_LZMA obj-$(CONFIG_SWIOTLB) += swiotlb.o
#include <linux/types.h> +obj-y += LzmaDecode.o
#include <linux/squashfs_fs.h>
#include <linux/module.h>
@@ -44,6 +48,19 @@
#include "squashfs.h" hostprogs-y := gen_crc32table
clean-files := crc32table.h
+#ifdef SQUASHFS_LZMA --- linux-2.6.19.old/lib/LzmaDecode.c 1970-01-01 01:00:00.000000000 +0100
+#include "LzmaDecode.h" +++ linux-2.6.19.dev/lib/LzmaDecode.c 2006-12-14 03:13:20.000000000 +0100
+
+/* default LZMA settings, should be in sync with mksquashfs */
+#define LZMA_LC 3
+#define LZMA_LP 0
+#define LZMA_PB 2
+
+#define LZMA_WORKSPACE_SIZE ((LZMA_BASE_SIZE + \
+ (LZMA_LIT_SIZE << (LZMA_LC + LZMA_LP))) * sizeof(CProb))
+
+#endif
+
static void squashfs_put_super(struct super_block *);
static int squashfs_statfs(struct dentry *, struct kstatfs *);
static int squashfs_symlink_readpage(struct file *file, struct page *page);
@@ -64,7 +81,11 @@
const char *, void *, struct vfsmount *);
+#ifdef SQUASHFS_LZMA
+static unsigned char lzma_workspace[LZMA_WORKSPACE_SIZE];
+#else
static z_stream stream;
+#endif
static struct file_system_type squashfs_fs_type = {
.owner = THIS_MODULE,
@@ -249,6 +270,15 @@
if (compressed) {
int zlib_err;
+#ifdef SQUASHFS_LZMA
+ if ((zlib_err = LzmaDecode(lzma_workspace,
+ LZMA_WORKSPACE_SIZE, LZMA_LC, LZMA_LP, LZMA_PB,
+ c_buffer, c_byte, buffer, msblk->read_size, &bytes)) != LZMA_RESULT_OK)
+ {
+ ERROR("lzma returned unexpected result 0x%x\n", zlib_err);
+ bytes = 0;
+ }
+#else
stream.next_in = c_buffer;
stream.avail_in = c_byte;
stream.next_out = buffer;
@@ -263,7 +293,7 @@
bytes = 0;
} else
bytes = stream.total_out;
-
+#endif
up(&msblk->read_data_mutex);
}
@@ -2045,15 +2075,19 @@
printk(KERN_INFO "squashfs: version 3.0 (2006/03/15) "
"Phillip Lougher\n");
+#ifndef SQUASHFS_LZMA
if (!(stream.workspace = vmalloc(zlib_inflate_workspacesize()))) {
ERROR("Failed to allocate zlib workspace\n");
destroy_inodecache();
err = -ENOMEM;
goto out;
}
+#endif
if ((err = register_filesystem(&squashfs_fs_type))) {
+#ifndef SQUASHFS_LZMA
vfree(stream.workspace);
+#endif
destroy_inodecache();
}
@@ -2064,7 +2098,9 @@
static void __exit exit_squashfs_fs(void)
{
+#ifndef SQUASHFS_LZMA
vfree(stream.workspace);
+#endif
unregister_filesystem(&squashfs_fs_type);
destroy_inodecache();
}
diff -urN linux-2.6.19.old/fs/squashfs/LzmaDecode.c linux-2.6.19.dev/fs/squashfs/LzmaDecode.c
--- linux-2.6.19.old/fs/squashfs/LzmaDecode.c 1970-01-01 01:00:00.000000000 +0100
+++ linux-2.6.19.dev/fs/squashfs/LzmaDecode.c 2006-12-14 03:13:20.000000000 +0100
@@ -0,0 +1,663 @@ @@ -0,0 +1,663 @@
+/* +/*
+ LzmaDecode.c + LzmaDecode.c
@ -131,7 +32,7 @@ diff -urN linux-2.6.19.old/fs/squashfs/LzmaDecode.c linux-2.6.19.dev/fs/squashfs
+ to this file, however, are subject to the LGPL or CPL terms. + to this file, however, are subject to the LGPL or CPL terms.
+*/ +*/
+ +
+#include "LzmaDecode.h" +#include <linux/LzmaDecode.h>
+ +
+#ifndef Byte +#ifndef Byte
+#define Byte unsigned char +#define Byte unsigned char
@ -773,9 +674,8 @@ diff -urN linux-2.6.19.old/fs/squashfs/LzmaDecode.c linux-2.6.19.dev/fs/squashfs
+ *outSizeProcessed = nowPos; + *outSizeProcessed = nowPos;
+ return LZMA_RESULT_OK; + return LZMA_RESULT_OK;
+} +}
diff -urN linux-2.6.19.old/fs/squashfs/LzmaDecode.h linux-2.6.19.dev/fs/squashfs/LzmaDecode.h --- linux-2.6.19.old/include/linux/LzmaDecode.h 1970-01-01 01:00:00.000000000 +0100
--- linux-2.6.19.old/fs/squashfs/LzmaDecode.h 1970-01-01 01:00:00.000000000 +0100 +++ linux-2.6.19.dev/include/linux/LzmaDecode.h 2006-12-14 03:13:20.000000000 +0100
+++ linux-2.6.19.dev/fs/squashfs/LzmaDecode.h 2006-12-14 03:13:20.000000000 +0100
@@ -0,0 +1,100 @@ @@ -0,0 +1,100 @@
+/* +/*
+ LzmaDecode.h + LzmaDecode.h
@ -877,11 +777,4 @@ diff -urN linux-2.6.19.old/fs/squashfs/LzmaDecode.h linux-2.6.19.dev/fs/squashfs
+ UInt32 *outSizeProcessed); + UInt32 *outSizeProcessed);
+ +
+#endif +#endif
diff -urN linux-2.6.19.old/fs/squashfs/Makefile linux-2.6.19.dev/fs/squashfs/Makefile
--- linux-2.6.19.old/fs/squashfs/Makefile 2006-12-14 03:13:20.000000000 +0100
+++ linux-2.6.19.dev/fs/squashfs/Makefile 2006-12-14 03:13:20.000000000 +0100
@@ -5,3 +5,4 @@
obj-$(CONFIG_SQUASHFS) += squashfs.o
squashfs-y += inode.o
squashfs-y += squashfs2_0.o
+squashfs-y += LzmaDecode.o

109
target/linux/generic-2.6/patches/003-squashfs_lzma.patch Normal file
View File

@ -0,0 +1,109 @@
diff -urN linux-2.6.19.old/fs/squashfs/inode.c linux-2.6.19.dev/fs/squashfs/inode.c
--- linux-2.6.19.old/fs/squashfs/inode.c 2006-12-14 03:13:20.000000000 +0100
+++ linux-2.6.19.dev/fs/squashfs/inode.c 2006-12-14 03:13:20.000000000 +0100
@@ -4,6 +4,9 @@
* Copyright (c) 2002, 2003, 2004, 2005, 2006
* Phillip Lougher <phillip@lougher.org.uk>
*
+ * LZMA decompressor support added by Oleg I. Vdovikin
+ * Copyright (c) 2005 Oleg I.Vdovikin <oleg@cs.msu.su>
+ *
* 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,
@@ -21,6 +24,7 @@
* inode.c
*/
+#define SQUASHFS_LZMA
#include <linux/types.h>
#include <linux/squashfs_fs.h>
#include <linux/module.h>
@@ -44,6 +48,19 @@
#include "squashfs.h"
+#ifdef SQUASHFS_LZMA
+#include <linux/LzmaDecode.h>
+
+/* default LZMA settings, should be in sync with mksquashfs */
+#define LZMA_LC 3
+#define LZMA_LP 0
+#define LZMA_PB 2
+
+#define LZMA_WORKSPACE_SIZE ((LZMA_BASE_SIZE + \
+ (LZMA_LIT_SIZE << (LZMA_LC + LZMA_LP))) * sizeof(CProb))
+
+#endif
+
static void squashfs_put_super(struct super_block *);
static int squashfs_statfs(struct dentry *, struct kstatfs *);
static int squashfs_symlink_readpage(struct file *file, struct page *page);
@@ -64,7 +81,11 @@
const char *, void *, struct vfsmount *);
+#ifdef SQUASHFS_LZMA
+static unsigned char lzma_workspace[LZMA_WORKSPACE_SIZE];
+#else
static z_stream stream;
+#endif
static struct file_system_type squashfs_fs_type = {
.owner = THIS_MODULE,
@@ -249,6 +270,15 @@
if (compressed) {
int zlib_err;
+#ifdef SQUASHFS_LZMA
+ if ((zlib_err = LzmaDecode(lzma_workspace,
+ LZMA_WORKSPACE_SIZE, LZMA_LC, LZMA_LP, LZMA_PB,
+ c_buffer, c_byte, buffer, msblk->read_size, &bytes)) != LZMA_RESULT_OK)
+ {
+ ERROR("lzma returned unexpected result 0x%x\n", zlib_err);
+ bytes = 0;
+ }
+#else
stream.next_in = c_buffer;
stream.avail_in = c_byte;
stream.next_out = buffer;
@@ -263,7 +293,7 @@
bytes = 0;
} else
bytes = stream.total_out;
-
+#endif
up(&msblk->read_data_mutex);
}
@@ -2045,15 +2075,19 @@
printk(KERN_INFO "squashfs: version 3.0 (2006/03/15) "
"Phillip Lougher\n");
+#ifndef SQUASHFS_LZMA
if (!(stream.workspace = vmalloc(zlib_inflate_workspacesize()))) {
ERROR("Failed to allocate zlib workspace\n");
destroy_inodecache();
err = -ENOMEM;
goto out;
}
+#endif
if ((err = register_filesystem(&squashfs_fs_type))) {
+#ifndef SQUASHFS_LZMA
vfree(stream.workspace);
+#endif
destroy_inodecache();
}
@@ -2064,7 +2098,9 @@
static void __exit exit_squashfs_fs(void)
{
+#ifndef SQUASHFS_LZMA
vfree(stream.workspace);
+#endif
unregister_filesystem(&squashfs_fs_type);
destroy_inodecache();
}

3
target/linux/generic-2.6/patches/010-disable_old_squashfs_compatibility.patch
View File

@ -1,12 +1,11 @@
diff -urN linux-2.6.19.old/fs/squashfs/Makefile linux-2.6.19.dev/fs/squashfs/Makefile diff -urN linux-2.6.19.old/fs/squashfs/Makefile linux-2.6.19.dev/fs/squashfs/Makefile
--- linux-2.6.19.old/fs/squashfs/Makefile 2006-12-14 03:13:22.000000000 +0100 --- linux-2.6.19.old/fs/squashfs/Makefile 2006-12-14 03:13:22.000000000 +0100
+++ linux-2.6.19.dev/fs/squashfs/Makefile 2006-12-14 03:13:31.000000000 +0100 +++ linux-2.6.19.dev/fs/squashfs/Makefile 2006-12-14 03:13:31.000000000 +0100
@@ -4,5 +4,4 @@ @@ -4,4 +4,3 @@
obj-$(CONFIG_SQUASHFS) += squashfs.o obj-$(CONFIG_SQUASHFS) += squashfs.o
squashfs-y += inode.o squashfs-y += inode.o
-squashfs-y += squashfs2_0.o -squashfs-y += squashfs2_0.o
squashfs-y += LzmaDecode.o
diff -urN linux-2.6.19.old/fs/squashfs/squashfs.h linux-2.6.19.dev/fs/squashfs/squashfs.h diff -urN linux-2.6.19.old/fs/squashfs/squashfs.h linux-2.6.19.dev/fs/squashfs/squashfs.h
--- linux-2.6.19.old/fs/squashfs/squashfs.h 2006-12-14 03:13:20.000000000 +0100 --- linux-2.6.19.old/fs/squashfs/squashfs.h 2006-12-14 03:13:20.000000000 +0100
+++ linux-2.6.19.dev/fs/squashfs/squashfs.h 2006-12-14 03:13:31.000000000 +0100 +++ linux-2.6.19.dev/fs/squashfs/squashfs.h 2006-12-14 03:13:31.000000000 +0100