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Message-Id: <1179345341.5854.36.camel@localhost.localdomain>
Date: Wed, 16 May 2007 20:55:41 +0100
From: Richard Purdie <rpurdie@...nedhand.com>
To: linux-kernel@...r.kernel.org
Subject: Re: 2.6.22-rc1-mm1
Convert Reiser4 to use lzo implementation in lib/lzo/ instead of
including its own copy of minilzo.
Signed-off-by: Richard Purdie <rpurdie@...nedhand.com>
---
[I've removed the deletion of minilzo.* and lzoconf.h from the LKML
version of this mail since its not very interesting]
fs/reiser4/Kconfig | 1
fs/reiser4/Makefile | 1
fs/reiser4/plugin/compress/Makefile | 1
fs/reiser4/plugin/compress/compress.c | 22
fs/reiser4/plugin/compress/lzoconf.h | 216 ---
fs/reiser4/plugin/compress/minilzo.c | 1967 ----------------------------------
fs/reiser4/plugin/compress/minilzo.h | 70 -
7 files changed, 10 insertions(+), 2268 deletions(-)
Index: linux-2.6.21/fs/reiser4/Kconfig
===================================================================
--- linux-2.6.21.orig/fs/reiser4/Kconfig 2007-05-16 18:46:01.000000000 +0100
+++ linux-2.6.21/fs/reiser4/Kconfig 2007-05-16 18:49:09.000000000 +0100
@@ -3,6 +3,7 @@ config REISER4_FS
depends on EXPERIMENTAL
select ZLIB_INFLATE
select ZLIB_DEFLATE
+ select LZO
select CRYPTO
help
Reiser4 is a filesystem that performs all filesystem operations
Index: linux-2.6.21/fs/reiser4/Makefile
===================================================================
--- linux-2.6.21.orig/fs/reiser4/Makefile 2007-05-16 18:46:01.000000000 +0100
+++ linux-2.6.21/fs/reiser4/Makefile 2007-05-16 20:35:48.000000000 +0100
@@ -70,7 +70,6 @@ reiser4-y := \
plugin/crypto/cipher.o \
plugin/crypto/digest.o \
\
- plugin/compress/minilzo.o \
plugin/compress/compress.o \
plugin/compress/compress_mode.o \
\
Index: linux-2.6.21/fs/reiser4/plugin/compress/Makefile
===================================================================
--- linux-2.6.21.orig/fs/reiser4/plugin/compress/Makefile 2007-05-16 18:46:01.000000000 +0100
+++ linux-2.6.21/fs/reiser4/plugin/compress/Makefile 2007-05-16 18:48:42.000000000 +0100
@@ -2,5 +2,4 @@ obj-$(CONFIG_REISER4_FS) += compress_plu
compress_plugins-objs := \
compress.o \
- minilzo.o \
compress_mode.o
Index: linux-2.6.21/fs/reiser4/plugin/compress/compress.c
===================================================================
--- linux-2.6.21.orig/fs/reiser4/plugin/compress/compress.c 2007-05-16 18:46:01.000000000 +0100
+++ linux-2.6.21/fs/reiser4/plugin/compress/compress.c 2007-05-16 20:47:45.000000000 +0100
@@ -4,8 +4,8 @@
#include "../../debug.h"
#include "../../inode.h"
#include "../plugin.h"
-#include "minilzo.h"
+#include <linux/lzo.h>
#include <linux/zlib.h>
#include <linux/types.h>
#include <linux/hardirq.h>
@@ -226,11 +226,7 @@ gzip1_decompress(coa_t coa, __u8 * src_f
static int lzo1_init(void)
{
- int ret;
- ret = lzo_init();
- if (ret != LZO_E_OK)
- warning("edward-848", "lzo_init() failed with ret = %d\n", ret);
- return ret;
+ return 0;
}
static int lzo1_overrun(unsigned in_len)
@@ -238,9 +234,6 @@ static int lzo1_overrun(unsigned in_len)
return in_len / 64 + 16 + 3;
}
-#define LZO_HEAP_SIZE(size) \
- sizeof(lzo_align_t) * (((size) + (sizeof(lzo_align_t) - 1)) / sizeof(lzo_align_t))
-
static coa_t lzo1_alloc(tfm_action act)
{
int ret = 0;
@@ -248,12 +241,12 @@ static coa_t lzo1_alloc(tfm_action act)
switch (act) {
case TFMA_WRITE: /* compress */
- coa = reiser4_vmalloc(LZO_HEAP_SIZE(LZO1X_1_MEM_COMPRESS));
+ coa = reiser4_vmalloc(LZO1X_1_MEM_COMPRESS);
if (!coa) {
ret = -ENOMEM;
break;
}
- memset(coa, 0, LZO_HEAP_SIZE(LZO1X_1_MEM_COMPRESS));
+ memset(coa, 0, LZO1X_1_MEM_COMPRESS);
case TFMA_READ: /* decompress */
break;
default:
@@ -295,12 +288,13 @@ static void
lzo1_compress(coa_t coa, __u8 * src_first, unsigned src_len,
__u8 * dst_first, unsigned *dst_len)
{
+ unsigned long dstlen = *dst_len;
int result;
assert("edward-846", coa != NULL);
assert("edward-847", src_len != 0);
- result = lzo1x_1_compress(src_first, src_len, dst_first, dst_len, coa);
+ result = lzo1x_1_compress(src_first, src_len, dst_first, &dstlen, coa);
if (result != LZO_E_OK) {
warning("edward-849", "lzo1x_1_compress failed\n");
goto out;
@@ -319,14 +313,16 @@ static void
lzo1_decompress(coa_t coa, __u8 * src_first, unsigned src_len,
__u8 * dst_first, unsigned *dst_len)
{
+ unsigned long dstlen = *dst_len;
int result;
assert("edward-851", coa == NULL);
assert("edward-852", src_len != 0);
- result = lzo1x_decompress(src_first, src_len, dst_first, dst_len, NULL);
+ result = lzo1x_decompress(src_first, src_len, dst_first, &dstlen, NULL);
if (result != LZO_E_OK)
warning("edward-853", "lzo1x_1_decompress failed\n");
+ *dst_len = dstlen;
return;
}
-
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