@@ -11,7 +11,7 @@
#include <linux/module.h>
#include <linux/net.h>
#include <linux/vmalloc.h>
-#include <linux/zstd.h>
+#include <linux/zstd_compat.h>
#include <crypto/internal/scompress.h>
@@ -16,7 +16,7 @@
#include <linux/refcount.h>
#include <linux/sched.h>
#include <linux/slab.h>
-#include <linux/zstd.h>
+#include <linux/zstd_compat.h>
#include "misc.h"
#include "compression.h"
#include "ctree.h"
@@ -11,7 +11,7 @@
#include <linux/backing-dev.h>
#include <linux/lzo.h>
#include <linux/lz4.h>
-#include <linux/zstd.h>
+#include <linux/zstd_compat.h>
#include "f2fs.h"
#include "node.h"
@@ -11,7 +11,7 @@
#include <linux/mutex.h>
#include <linux/bio.h>
#include <linux/slab.h>
-#include <linux/zstd.h>
+#include <linux/zstd_compat.h>
#include <linux/vmalloc.h>
#include "squashfs_fs.h"
new file mode 100644
@@ -0,0 +1,116 @@
+/*
+ * Copyright (c) 2016-present, Facebook, Inc.
+ * All rights reserved.
+ *
+ * This source code is licensed under the BSD-style license found in the
+ * LICENSE file in the root directory of https://github.com/facebook/zstd.
+ * An additional grant of patent rights can be found in the PATENTS file in the
+ * same directory.
+ *
+ * This program is free software; you can redistribute it and/or modify it under
+ * the terms of the GNU General Public License version 2 as published by the
+ * Free Software Foundation. This program is dual-licensed; you may select
+ * either version 2 of the GNU General Public License ("GPL") or BSD license
+ * ("BSD").
+ */
+
+#ifndef ZSTD_COMPAT_H
+#define ZSTD_COMPAT_H
+
+#include <linux/zstd.h>
+
+#if defined(ZSTD_VERSION_NUMBER) && (ZSTD_VERSION_NUMBER >= 10406)
+/*
+ * This header provides backwards compatibility for the zstd-1.4.6 library
+ * upgrade. This header allows us to upgrade the zstd library version without
+ * modifying any callers. Then we will migrate callers from the compatibility
+ * wrapper one at a time until none remain. At which point we will delete this
+ * header.
+ *
+ * It is temporary and will be deleted once the upgrade is complete.
+ */
+
+#include <linux/zstd_errors.h>
+
+static inline size_t ZSTD_CCtxWorkspaceBound(ZSTD_compressionParameters compression_params)
+{
+ return ZSTD_estimateCCtxSize_usingCParams(compression_params);
+}
+
+static inline size_t ZSTD_CStreamWorkspaceBound(ZSTD_compressionParameters compression_params)
+{
+ return ZSTD_estimateCStreamSize_usingCParams(compression_params);
+}
+
+static inline size_t ZSTD_DCtxWorkspaceBound(void)
+{
+ return ZSTD_estimateDCtxSize();
+}
+
+static inline size_t ZSTD_DStreamWorkspaceBound(unsigned long long window_size)
+{
+ return ZSTD_estimateDStreamSize(window_size);
+}
+
+static inline ZSTD_CCtx* ZSTD_initCCtx(void* wksp, size_t wksp_size)
+{
+ if (wksp == NULL)
+ return NULL;
+ return ZSTD_initStaticCCtx(wksp, wksp_size);
+}
+
+static inline ZSTD_CStream* ZSTD_initCStream_compat(ZSTD_parameters params, uint64_t pledged_src_size, void* wksp, size_t wksp_size)
+{
+ ZSTD_CStream* cstream;
+ size_t ret;
+
+ if (wksp == NULL)
+ return NULL;
+
+ cstream = ZSTD_initStaticCStream(wksp, wksp_size);
+ if (cstream == NULL)
+ return NULL;
+
+ /* 0 means unknown in old API but means 0 in new API */
+ if (pledged_src_size == 0)
+ pledged_src_size = ZSTD_CONTENTSIZE_UNKNOWN;
+
+ ret = ZSTD_initCStream_advanced(cstream, NULL, 0, params, pledged_src_size);
+ if (ZSTD_isError(ret))
+ return NULL;
+
+ return cstream;
+}
+#define ZSTD_initCStream ZSTD_initCStream_compat
+
+static inline ZSTD_DCtx* ZSTD_initDCtx(void* wksp, size_t wksp_size)
+{
+ if (wksp == NULL)
+ return NULL;
+ return ZSTD_initStaticDCtx(wksp, wksp_size);
+}
+
+static inline ZSTD_DStream* ZSTD_initDStream_compat(unsigned long long window_size, void* wksp, size_t wksp_size)
+{
+ if (wksp == NULL)
+ return NULL;
+ (void)window_size;
+ return ZSTD_initStaticDStream(wksp, wksp_size);
+}
+#define ZSTD_initDStream ZSTD_initDStream_compat
+
+typedef ZSTD_frameHeader ZSTD_frameParams;
+
+static inline size_t ZSTD_getFrameParams(ZSTD_frameParams* frame_params, const void* src, size_t src_size)
+{
+ return ZSTD_getFrameHeader(frame_params, src, src_size);
+}
+
+static inline size_t ZSTD_compressCCtx_compat(ZSTD_CCtx* cctx, void* dst, size_t dst_capacity, const void* src, size_t src_size, ZSTD_parameters params)
+{
+ return ZSTD_compress_advanced(cctx, dst, dst_capacity, src, src_size, NULL, 0, params);
+}
+#define ZSTD_compressCCtx ZSTD_compressCCtx_compat
+
+#endif /* ZSTD_VERSION_NUMBER >= 10406 */
+#endif /* ZSTD_COMPAT_H */
@@ -77,7 +77,7 @@
#include <linux/decompress/mm.h>
#include <linux/kernel.h>
-#include <linux/zstd.h>
+#include <linux/zstd_compat.h>
/* 128MB is the maximum window size supported by zstd. */
#define ZSTD_WINDOWSIZE_MAX (1 << ZSTD_WINDOWLOG_MAX)