Finally... Import the latest open-source ZFS version - (SPA) 28.

Few new things available from now on:

- Data deduplication.
- Triple parity RAIDZ (RAIDZ3).
- zfs diff.
- zpool split.
- Snapshot holds.
- zpool import -F. Allows to rewind corrupted pool to earlier
  transaction group.
- Possibility to import pool in read-only mode.

MFC after:	1 month

1 files changed, 53 insertions, 0 deletions

diff --git a/sys/cddl/contrib/opensolaris/common/zfs/zfs_fletcher.h b/sys/cddl/contrib/opensolaris/common/zfs/zfs_fletcher.h
new file mode 100644
index 0000000..b49df0c
--- /dev/null
+++ b/sys/cddl/contrib/opensolaris/common/zfs/zfs_fletcher.h
@@ -0,0 +1,53 @@
+/*
+ * CDDL HEADER START
+ *
+ * The contents of this file are subject to the terms of the
+ * Common Development and Distribution License (the "License").
+ * You may not use this file except in compliance with the License.
+ *
+ * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
+ * or http://www.opensolaris.org/os/licensing.
+ * See the License for the specific language governing permissions
+ * and limitations under the License.
+ *
+ * When distributing Covered Code, include this CDDL HEADER in each
+ * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
+ * If applicable, add the following below this CDDL HEADER, with the
+ * fields enclosed by brackets "[]" replaced with your own identifying
+ * information: Portions Copyright [yyyy] [name of copyright owner]
+ *
+ * CDDL HEADER END
+ */
+/*
+ * Copyright 2009 Sun Microsystems, Inc.  All rights reserved.
+ * Use is subject to license terms.
+ */
+
+#ifndef	_ZFS_FLETCHER_H
+#define	_ZFS_FLETCHER_H
+
+#include <sys/types.h>
+#include <sys/spa.h>
+
+#ifdef	__cplusplus
+extern "C" {
+#endif
+
+/*
+ * fletcher checksum functions
+ */
+
+void fletcher_2_native(const void *, uint64_t, zio_cksum_t *);
+void fletcher_2_byteswap(const void *, uint64_t, zio_cksum_t *);
+void fletcher_4_native(const void *, uint64_t, zio_cksum_t *);
+void fletcher_4_byteswap(const void *, uint64_t, zio_cksum_t *);
+void fletcher_4_incremental_native(const void *, uint64_t,
+    zio_cksum_t *);
+void fletcher_4_incremental_byteswap(const void *, uint64_t,
+    zio_cksum_t *);
+
+#ifdef	__cplusplus
+}
+#endif
+
+#endif	/* _ZFS_FLETCHER_H */