@@ -11,7 +11,8 @@
#include <linux/backing-dev.h>
#include <linux/lzo.h>
#include <linux/lz4.h>
-#include <linux/zstd_compat.h>
+#include <linux/zstd.h>
+#include <linux/zstd_errors.h>
#include "f2fs.h"
#include "node.h"
@@ -322,21 +323,21 @@ static const struct f2fs_compress_ops f2fs_lz4_ops = {
static int zstd_init_compress_ctx(struct compress_ctx *cc)
{
ZSTD_parameters params;
- ZSTD_CStream *stream;
+ ZSTD_CCtx *ctx;
void *workspace;
unsigned int workspace_size;
params = ZSTD_getParams(F2FS_ZSTD_DEFAULT_CLEVEL, cc->rlen, 0);
- workspace_size = ZSTD_CStreamWorkspaceBound(params.cParams);
+ workspace_size = ZSTD_estimateCCtxSize_usingCParams(params.cParams);
workspace = f2fs_kvmalloc(F2FS_I_SB(cc->inode),
workspace_size, GFP_NOFS);
if (!workspace)
return -ENOMEM;
- stream = ZSTD_initCStream(params, 0, workspace, workspace_size);
- if (!stream) {
- printk_ratelimited("%sF2FS-fs (%s): %s ZSTD_initCStream failed\n",
+ ctx = ZSTD_initStaticCCtx(workspace, workspace_size);
+ if (!ctx) {
+ printk_ratelimited("%sF2FS-fs (%s): %s ZSTD_inittaticCStream failed\n",
KERN_ERR, F2FS_I_SB(cc->inode)->sb->s_id,
__func__);
kvfree(workspace);
@@ -344,7 +345,7 @@ static int zstd_init_compress_ctx(struct compress_ctx *cc)
}
cc->private = workspace;
- cc->private2 = stream;
+ cc->private2 = ctx;
cc->clen = cc->rlen - PAGE_SIZE - COMPRESS_HEADER_SIZE;
return 0;
@@ -359,66 +360,48 @@ static void zstd_destroy_compress_ctx(struct compress_ctx *cc)
static int zstd_compress_pages(struct compress_ctx *cc)
{
- ZSTD_CStream *stream = cc->private2;
- ZSTD_inBuffer inbuf;
- ZSTD_outBuffer outbuf;
- int src_size = cc->rlen;
- int dst_size = src_size - PAGE_SIZE - COMPRESS_HEADER_SIZE;
- int ret;
-
- inbuf.pos = 0;
- inbuf.src = cc->rbuf;
- inbuf.size = src_size;
-
- outbuf.pos = 0;
- outbuf.dst = cc->cbuf->cdata;
- outbuf.size = dst_size;
+ ZSTD_CCtx *ctx = cc->private2;
+ const size_t src_size = cc->rlen;
+ const size_t dst_size = src_size - PAGE_SIZE - COMPRESS_HEADER_SIZE;
+ ZSTD_parameters params = ZSTD_getParams(F2FS_ZSTD_DEFAULT_CLEVEL, src_size, 0);
+ size_t ret;
- ret = ZSTD_compressStream(stream, &outbuf, &inbuf);
+ ret = ZSTD_compress_advanced(
+ ctx, cc->cbuf->cdata, dst_size, cc->rbuf, src_size, NULL, 0, params);
if (ZSTD_isError(ret)) {
- printk_ratelimited("%sF2FS-fs (%s): %s ZSTD_compressStream failed, ret: %d\n",
- KERN_ERR, F2FS_I_SB(cc->inode)->sb->s_id,
- __func__, ZSTD_getErrorCode(ret));
- return -EIO;
- }
-
- ret = ZSTD_endStream(stream, &outbuf);
- if (ZSTD_isError(ret)) {
- printk_ratelimited("%sF2FS-fs (%s): %s ZSTD_endStream returned %d\n",
+ /*
+ * there is compressed data remained in intermediate buffer due to
+ * no more space in cbuf.cdata
+ */
+ if (ZSTD_getErrorCode(ret) == ZSTD_error_dstSize_tooSmall)
+ return -EAGAIN;
+ /* other compression errors return -EIO */
+ printk_ratelimited("%sF2FS-fs (%s): %s ZSTD_compress_advanced failed, err: %s\n",
KERN_ERR, F2FS_I_SB(cc->inode)->sb->s_id,
- __func__, ZSTD_getErrorCode(ret));
+ __func__, ZSTD_getErrorName(ret));
return -EIO;
}
- /*
- * there is compressed data remained in intermediate buffer due to
- * no more space in cbuf.cdata
- */
- if (ret)
- return -EAGAIN;
-
- cc->clen = outbuf.pos;
+ cc->clen = ret;
return 0;
}
static int zstd_init_decompress_ctx(struct decompress_io_ctx *dic)
{
- ZSTD_DStream *stream;
+ ZSTD_DCtx *ctx;
void *workspace;
unsigned int workspace_size;
- unsigned int max_window_size =
- MAX_COMPRESS_WINDOW_SIZE(dic->log_cluster_size);
- workspace_size = ZSTD_DStreamWorkspaceBound(max_window_size);
+ workspace_size = ZSTD_estimateDCtxSize();
workspace = f2fs_kvmalloc(F2FS_I_SB(dic->inode),
workspace_size, GFP_NOFS);
if (!workspace)
return -ENOMEM;
- stream = ZSTD_initDStream(max_window_size, workspace, workspace_size);
- if (!stream) {
- printk_ratelimited("%sF2FS-fs (%s): %s ZSTD_initDStream failed\n",
+ ctx = ZSTD_initStaticDCtx(workspace, workspace_size);
+ if (!ctx) {
+ printk_ratelimited("%sF2FS-fs (%s): %s ZSTD_initStaticDCtx failed\n",
KERN_ERR, F2FS_I_SB(dic->inode)->sb->s_id,
__func__);
kvfree(workspace);
@@ -426,7 +409,7 @@ static int zstd_init_decompress_ctx(struct decompress_io_ctx *dic)
}
dic->private = workspace;
- dic->private2 = stream;
+ dic->private2 = ctx;
return 0;
}
@@ -440,28 +423,18 @@ static void zstd_destroy_decompress_ctx(struct decompress_io_ctx *dic)
static int zstd_decompress_pages(struct decompress_io_ctx *dic)
{
- ZSTD_DStream *stream = dic->private2;
- ZSTD_inBuffer inbuf;
- ZSTD_outBuffer outbuf;
- int ret;
-
- inbuf.pos = 0;
- inbuf.src = dic->cbuf->cdata;
- inbuf.size = dic->clen;
-
- outbuf.pos = 0;
- outbuf.dst = dic->rbuf;
- outbuf.size = dic->rlen;
+ ZSTD_DCtx *ctx = dic->private2;
+ size_t ret;
- ret = ZSTD_decompressStream(stream, &outbuf, &inbuf);
+ ret = ZSTD_decompressDCtx(ctx, dic->rbuf, dic->rlen, dic->cbuf->cdata, dic->clen);
if (ZSTD_isError(ret)) {
- printk_ratelimited("%sF2FS-fs (%s): %s ZSTD_compressStream failed, ret: %d\n",
+ printk_ratelimited("%sF2FS-fs (%s): %s ZSTD_decompressDCtx failed, err: %s\n",
KERN_ERR, F2FS_I_SB(dic->inode)->sb->s_id,
- __func__, ZSTD_getErrorCode(ret));
+ __func__, ZSTD_getErrorName(ret));
return -EIO;
}
- if (dic->rlen != outbuf.pos) {
+ if (dic->rlen != ret) {
printk_ratelimited("%sF2FS-fs (%s): %s ZSTD invalid rlen:%zu, "
"expected:%lu\n", KERN_ERR,
F2FS_I_SB(dic->inode)->sb->s_id,