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

cddl/compat/opensolaris/include/fcntl.h

@@ -32,6 +32,7 @@
 
 #include_next <fcntl.h>
 
-#define open64	open
+#define open64(...)	open(__VA_ARGS__)
+#define openat64(...)	openat(__VA_ARGS__)
 
 #endif

cddl/compat/opensolaris/include/mnttab.h

@@ -12,6 +12,10 @@
 #define	MNTTAB		_PATH_DEVZERO
 #define	MNT_LINE_MAX	1024
 
+#define	MS_OVERLAY	0x0
+#define	MS_NOMNTTAB	0x0
+#define	MS_RDONLY	0x1
+
 #define	umount2(p, f)	unmount(p, f)
 
 struct mnttab {

cddl/compat/opensolaris/include/priv.h

@@ -10,7 +10,7 @@
 #define	PRIV_SYS_CONFIG	0
 
 static __inline int
-priv_ineffect(priv)
+priv_ineffect(int priv)
 {
 
 	assert(priv == PRIV_SYS_CONFIG);

cddl/compat/opensolaris/include/sha2.h

@@ -0,0 +1,38 @@
+/*-
+ * Copyright (c) 2010 Pawel Jakub Dawidek <pjd@FreeBSD.org>
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHORS AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHORS OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ *
+ * $FreeBSD$
+ */
+
+#ifndef _OPENSOLARIS_SHA2_H_
+#define _OPENSOLARIS_SHA2_H_
+
+#include_next <sha256.h>
+
+#define	SHA256Init(c)		SHA256_Init(c)
+#define	SHA256Update(c, d, s)	SHA256_Update((c), (d), (s))
+#define	SHA256Final(b, c)	SHA256_Final((unsigned char *)(b), (c))
+
+#endif	/* !_OPENSOLARIS_SHA2_H_ */

cddl/compat/opensolaris/include/solaris.h

@@ -5,6 +5,10 @@
 
 #include <sys/ccompile.h>
 
-#define	dirent64	dirent
+#include <fcntl.h>
+
+#define	NOTE(s)
+
+int mkdirp(const char *, mode_t);
 
 #endif	/* !_SOLARIS_H_ */

cddl/compat/opensolaris/include/thread_pool.h

@@ -0,0 +1,39 @@
+/*-
+ * Copyright (c) 2010 Pawel Jakub Dawidek <pjd@FreeBSD.org>
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHORS AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHORS OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ *
+ * $FreeBSD$
+ */
+
+#ifndef _OPENSOLARIS_THREAD_POOL_H_
+#define _OPENSOLARIS_THREAD_POOL_H_
+
+typedef int tpool_t;
+
+#define	tpool_create(a, b, c, d)	(0)
+#define	tpool_dispatch(pool, func, arg)	func(arg)
+#define	tpool_wait(pool)		do { } while (0)
+#define	tpool_destroy(pool)		do { } while (0)
+
+#endif	/* !_OPENSOLARIS_THREAD_POOL_H_ */

cddl/compat/opensolaris/misc/fsshare.c

@@ -28,15 +28,17 @@
 __FBSDID("$FreeBSD$");
 
 #include <sys/param.h>
-#include <stdio.h>
-#include <unistd.h>
-#include <fcntl.h>
-#include <string.h>
+
+#include <assert.h>
 #include <errno.h>
+#include <fcntl.h>
+#include <fsshare.h>
 #include <libutil.h>
-#include <assert.h>
 #include <pathnames.h>	/* _PATH_MOUNTDPID */
-#include <fsshare.h>
+#include <signal.h>
+#include <stdio.h>
+#include <string.h>
+#include <unistd.h>
 
 #define	FILE_HEADER	"# !!! DO NOT EDIT THIS FILE MANUALLY !!!\n\n"
 #define	OPTSSIZE	1024

cddl/compat/opensolaris/misc/zmount.c

@@ -39,6 +39,7 @@ __FBSDID("$FreeBSD$");
 #include <stdio.h>
 #include <stdlib.h>
 #include <string.h>
+#include <mnttab.h>
 
 static void
 build_iovec(struct iovec **iov, int *iovlen, const char *name, void *val,
@@ -78,7 +79,7 @@ zmount(const char *spec, const char *dir, int mflag, char *fstype,
 
 	assert(spec != NULL);
 	assert(dir != NULL);
-	assert(mflag == 0);
+	assert(mflag == 0 || mflag == MS_RDONLY);
 	assert(fstype != NULL);
 	assert(strcmp(fstype, MNTTYPE_ZFS) == 0);
 	assert(dataptr == NULL);
@@ -91,6 +92,8 @@ zmount(const char *spec, const char *dir, int mflag, char *fstype,
 
 	iov = NULL;
 	iovlen = 0;
+	if (mflag & MS_RDONLY)
+		build_iovec(&iov, &iovlen, "ro", NULL, 0);
 	build_iovec(&iov, &iovlen, "fstype", fstype, (size_t)-1);
 	build_iovec(&iov, &iovlen, "fspath", __DECONST(char *, dir),
 	    (size_t)-1);

cddl/contrib/opensolaris/cmd/stat/common/statcommon.h

@@ -0,0 +1,50 @@
+/*
+ * 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 (c) 2004, 2010, Oracle and/or its affiliates. All rights reserved.
+ *
+ * Common routines for acquiring snapshots of kstats for
+ * iostat, mpstat, and vmstat.
+ */
+
+#ifndef	_STATCOMMON_H
+#define	_STATCOMMON_H
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+#include <stdio.h>
+#include <sys/types.h>
+#include <time.h>
+
+#define	NODATE	0	/* Default:  No time stamp */
+#define	DDATE	1	/* Standard date format */
+#define	UDATE	2	/* Internal representation of Unix time */
+
+/* Print a timestamp in either Unix or standard format. */
+void print_timestamp(uint_t);
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* _STATCOMMON_H */

cddl/contrib/opensolaris/cmd/stat/common/timestamp.c

@@ -0,0 +1,49 @@
+/*
+ * 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.
+ */
+
+#include "statcommon.h"
+
+#include <langinfo.h>
+
+/*
+ * Print timestamp as decimal reprentation of time_t value (-T u was specified)
+ * or in date(1) format (-T d was specified).
+ */
+void
+print_timestamp(uint_t timestamp_fmt)
+{
+	time_t t = time(NULL);
+
+	if (timestamp_fmt == UDATE) {
+		(void) printf("%ld\n", t);
+	} else if (timestamp_fmt == DDATE) {
+		char dstr[64];
+		int len;
+
+		len = strftime(dstr, sizeof (dstr), "%+", localtime(&t));
+		if (len > 0)
+			(void) printf("%s\n", dstr);
+	}
+}