Move c_src dirs back to toplevel

[bcachefs-tools-debian] / include / linux / lz4.h

diff --git a/include/linux/lz4.h b/include/linux/lz4.h
index 6b784c59f321f413b30fec0ba6048db7f3cf617b..f574964af924138ec46aeb66d758ee2b130769f8 100644 (file)
--- a/include/linux/lz4.h
+++ b/include/linux/lz4.h
@@ -1,87 +1,10 @@
-#ifndef __LZ4_H__
-#define __LZ4_H__
-/*
- * LZ4 Kernel Interface
- *
- * Copyright (C) 2013, LG Electronics, Kyungsik Lee <kyungsik.lee@lge.com>
- *
- * 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.
- */
-#define LZ4_MEM_COMPRESS       (16384)
-#define LZ4HC_MEM_COMPRESS     (262144 + (2 * sizeof(unsigned char *)))
+#include <lz4.h>
 
-/*
- * lz4_compressbound()
- * Provides the maximum size that LZ4 may output in a "worst case" scenario
- * (input data not compressible)
- */
-static inline size_t lz4_compressbound(size_t isize)
-{
-       return isize + (isize / 255) + 16;
-}
+#define LZ4_compress_destSize(src, dst, srclen, dstlen, workspace)     \
+       LZ4_compress_destSize(src, dst, srclen, dstlen)
 
-/*
- * lz4_compress()
- *     src     : source address of the original data
- *     src_len : size of the original data
- *     dst     : output buffer address of the compressed data
- *             This requires 'dst' of size LZ4_COMPRESSBOUND.
- *     dst_len : is the output size, which is returned after compress done
- *     workmem : address of the working memory.
- *             This requires 'workmem' of size LZ4_MEM_COMPRESS.
- *     return  : Success if return 0
- *               Error if return (< 0)
- *     note :  Destination buffer and workmem must be already allocated with
- *             the defined size.
- */
-int lz4_compress(const unsigned char *src, size_t src_len,
-               unsigned char *dst, size_t *dst_len, void *wrkmem);
+#define LZ4_compress_HC(src, dst, srclen, dstlen, level, workspace)    -1
 
- /*
-  * lz4hc_compress()
-  *     src     : source address of the original data
-  *     src_len : size of the original data
-  *     dst     : output buffer address of the compressed data
-  *            This requires 'dst' of size LZ4_COMPRESSBOUND.
-  *     dst_len : is the output size, which is returned after compress done
-  *     workmem : address of the working memory.
-  *            This requires 'workmem' of size LZ4HC_MEM_COMPRESS.
-  *     return  : Success if return 0
-  *               Error if return (< 0)
-  *     note :  Destination buffer and workmem must be already allocated with
-  *             the defined size.
-  */
-int lz4hc_compress(const unsigned char *src, size_t src_len,
-               unsigned char *dst, size_t *dst_len, void *wrkmem);
-
-/*
- * lz4_decompress()
- *     src     : source address of the compressed data
- *     src_len : is the input size, whcih is returned after decompress done
- *     dest    : output buffer address of the decompressed data
- *     actual_dest_len: is the size of uncompressed data, supposing it's known
- *     return  : Success if return 0
- *               Error if return (< 0)
- *     note :  Destination buffer must be already allocated.
- *             slightly faster than lz4_decompress_unknownoutputsize()
- */
-int lz4_decompress(const unsigned char *src, size_t *src_len,
-               unsigned char *dest, size_t actual_dest_len);
-
-/*
- * lz4_decompress_unknownoutputsize()
- *     src     : source address of the compressed data
- *     src_len : is the input size, therefore the compressed size
- *     dest    : output buffer address of the decompressed data
- *     dest_len: is the max size of the destination buffer, which is
- *                     returned with actual size of decompressed data after
- *                     decompress done
- *     return  : Success if return 0
- *               Error if return (< 0)
- *     note :  Destination buffer must be already allocated.
- */
-int lz4_decompress_unknownoutputsize(const unsigned char *src, size_t src_len,
-               unsigned char *dest, size_t *dest_len);
-#endif
+#define LZ4_MEM_COMPRESS 0
+#define LZ4HC_MEM_COMPRESS 0
+#define LZ4HC_MIN_CLEVEL 0