Prepare SPL repo to merge with ZFS repo

This commit removes everything from the repository except the core
SPL implementation for Linux.  Those files which remain have been
moved to non-conflicting locations to facilitate the merge.
The README.md and associated files have been updated accordingly.

Signed-off-by: Brian Behlendorf <[email protected]>

1 files changed, 78 insertions, 0 deletions

diff --git a/include/spl/sys/zmod.h b/include/spl/sys/zmod.h
new file mode 100644
index 000000000..95c1a3ed7
--- /dev/null
+++ b/include/spl/sys/zmod.h
@@ -0,0 +1,78 @@
+/*
+ *  Copyright (C) 2007-2010 Lawrence Livermore National Security, LLC.
+ *  Copyright (C) 2007 The Regents of the University of California.
+ *  Produced at Lawrence Livermore National Laboratory (cf, DISCLAIMER).
+ *  Written by Brian Behlendorf <[email protected]>.
+ *  UCRL-CODE-235197
+ *
+ *  This file is part of the SPL, Solaris Porting Layer.
+ *  For details, see <http://zfsonlinux.org/>.
+ *
+ *  The SPL 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 of the License, or (at your
+ *  option) any later version.
+ *
+ *  The SPL is distributed in the hope that it will be useful, but WITHOUT
+ *  ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ *  FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
+ *  for more details.
+ *
+ *  You should have received a copy of the GNU General Public License along
+ *  with the SPL.  If not, see <http://www.gnu.org/licenses/>.
+ *
+ *
+ *  z_compress_level/z_uncompress are nearly identical copies of the
+ *  compress2/uncompress functions provided by the official zlib package
+ *  available at http://zlib.net/.  The only changes made we to slightly
+ *  adapt the functions called to match the linux kernel implementation
+ *  of zlib.  The full zlib license follows:
+ *
+ *  zlib.h -- interface of the 'zlib' general purpose compression library
+ *  version 1.2.5, April 19th, 2010
+ *
+ *  Copyright (C) 1995-2010 Jean-loup Gailly and Mark Adler
+ *
+ *  This software is provided 'as-is', without any express or implied
+ *  warranty.  In no event will the authors be held liable for any damages
+ *  arising from the use of this software.
+ *
+ *  Permission is granted to anyone to use this software for any purpose,
+ *  including commercial applications, and to alter it and redistribute it
+ *  freely, subject to the following restrictions:
+ *
+ *  1. The origin of this software must not be misrepresented; you must not
+ *     claim that you wrote the original software. If you use this software
+ *     in a product, an acknowledgment in the product documentation would be
+ *     appreciated but is not required.
+ *  2. Altered source versions must be plainly marked as such, and must not be
+ *     misrepresented as being the original software.
+ *  3. This notice may not be removed or altered from any source distribution.
+ *
+ *  Jean-loup Gailly
+ *  Mark Adler
+ */
+
+#ifndef _SPL_ZMOD_H
+#define	_SPL_ZMOD_H
+
+#include <sys/types.h>
+#include <linux/zlib.h>
+
+#ifdef HAVE_2ARGS_ZLIB_DEFLATE_WORKSPACESIZE
+#define	spl_zlib_deflate_workspacesize(wb, ml) \
+	zlib_deflate_workspacesize(wb, ml)
+#else
+#define	spl_zlib_deflate_workspacesize(wb, ml) \
+	zlib_deflate_workspacesize()
+#endif /* HAVE_2ARGS_ZLIB_DEFLATE_WORKSPACESIZE */
+
+extern int z_compress_level(void *dest, size_t *destLen, const void *source,
+    size_t sourceLen, int level);
+extern int z_uncompress(void *dest, size_t *destLen, const void *source,
+    size_t sourceLen);
+
+int spl_zlib_init(void);
+void spl_zlib_fini(void);
+
+#endif /* SPL_ZMOD_H */