Update ZFS from version 6 to 13 and bring some FreeBSD-specific changes.

This bring huge amount of changes, I'll enumerate only user-visible changes:

- Delegated Administration

	Allows regular users to perform ZFS operations, like file system
	creation, snapshot creation, etc.

- L2ARC

	Level 2 cache for ZFS - allows to use additional disks for cache.
	Huge performance improvements mostly for random read of mostly
	static content.

- slog

	Allow to use additional disks for ZFS Intent Log to speed up
	operations like fsync(2).

- vfs.zfs.super_owner

	Allows regular users to perform privileged operations on files stored
	on ZFS file systems owned by him. Very careful with this one.

- chflags(2)

	Not all the flags are supported. This still needs work.

- ZFSBoot

	Support to boot off of ZFS pool. Not finished, AFAIK.

	Submitted by:	dfr

- Snapshot properties

- New failure modes

	Before if write requested failed, system paniced. Now one
	can select from one of three failure modes:
	- panic - panic on write error
	- wait - wait for disk to reappear
	- continue - serve read requests if possible, block write requests

- Refquota, refreservation properties

	Just quota and reservation properties, but don't count space consumed
	by children file systems, clones and snapshots.

- Sparse volumes

	ZVOLs that don't reserve space in the pool.

- External attributes

	Compatible with extattr(2).

- NFSv4-ACLs

	Not sure about the status, might not be complete yet.

	Submitted by:	trasz

- Creation-time properties

- Regression tests for zpool(8) command.

Obtained from:	OpenSolaris

1 files changed, 89 insertions, 0 deletions

diff --git a/sys/sys/osd.h b/sys/sys/osd.h
new file mode 100644
index 0000000..281f580
--- /dev/null
+++ b/sys/sys/osd.h
@@ -0,0 +1,89 @@
+/*-
+ * Copyright (c) 2007 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 _SYS_OSD_H_
+#define _SYS_OSD_H_
+
+#include <sys/queue.h>
+
+struct osd {
+	u_int		  osd_nslots;
+	void		**osd_slots;
+	LIST_ENTRY(osd)	  osd_next;
+};
+
+#ifdef _KERNEL
+
+#define	OSD_THREAD	0
+#define	OSD_JAIL	1
+
+#define	OSD_FIRST	OSD_THREAD
+#define	OSD_LAST	OSD_JAIL
+
+typedef void (*osd_destructor_t)(void *value);
+
+int osd_register(u_int type, osd_destructor_t destructor);
+void osd_deregister(u_int type, u_int slot);
+
+int osd_set(u_int type, struct osd *osd, u_int slot, void *value);
+void *osd_get(u_int type, struct osd *osd, u_int slot);
+void osd_del(u_int type, struct osd *osd, u_int slot);
+
+void osd_exit(u_int type, struct osd *osd);
+
+#define	osd_thread_register(destructor)					\
+	osd_register(OSD_THREAD, (destructor))
+#define	osd_thread_deregister(slot)					\
+	osd_deregister(OSD_THREAD, (slot))
+#define	osd_thread_set(td, slot, value)					\
+	osd_set(OSD_THREAD, &(td)->td_osd, (slot), (value))
+#define	osd_thread_get(td, slot)					\
+	osd_get(OSD_THREAD, &(td)->td_osd, (slot))
+#define	osd_thread_del(td, slot)	do {				\
+	KASSERT((td) == curthread, ("Not curthread."));			\
+	osd_del(OSD_THREAD, &(td)->td_osd, (slot));			\
+} while (0)
+#define	osd_thread_exit(td)						\
+	osd_exit(OSD_THREAD, &(td)->td_osd)
+
+#define	osd_jail_register(destructor)					\
+	osd_register(OSD_JAIL, (destructor))
+#define	osd_jail_deregister(slot)					\
+	osd_deregister(OSD_JAIL, (slot))
+#define	osd_jail_set(pr, slot, value)					\
+	osd_set(OSD_JAIL, &(pr)->pr_osd, (slot), (value))
+#define	osd_jail_get(pr, slot)						\
+	osd_get(OSD_JAIL, &(pr)->pr_osd, (slot))
+#define	osd_jail_del(pr, slot)						\
+	osd_del(OSD_JAIL, &(pr)->pr_osd, (slot))
+#define	osd_jail_exit(pr)						\
+	osd_exit(OSD_JAIL, &(pr)->pr_osd)
+
+#endif	/* _KERNEL */
+
+#endif	/* !_SYS_OSD_H_ */