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, 7 insertions, 2 deletions

diff --git a/lib/libc/gen/getvfsbyname.3 b/lib/libc/gen/getvfsbyname.3
index 65da50b..f2a5965 100644
--- a/lib/libc/gen/getvfsbyname.3
+++ b/lib/libc/gen/getvfsbyname.3
@@ -68,7 +68,7 @@ flag bits, as described below
 .Pp
 The flags are defined as follows:
 .Pp
-.Bl -tag -width VFCF_SYNTHETIC -compact
+.Bl -tag -width VFCF_DELEGADMIN -compact
 .It Dv VFCF_STATIC
 statically compiled into kernel
 .It Dv VFCF_NETWORK
@@ -85,7 +85,12 @@ stores file names as Unicode
 can be mounted from within a jail if
 .Va security.jail.mount_allowed
 sysctl is set to
-.Dv 1 .
+.Dv 1
+.It Dv VFCF_DELEGADMIN
+supports delegated administration if
+.Va vfs.usermount
+sysctl is set to
+.Dv 1
 .El
 .Sh RETURN VALUES
 .Rv -std getvfsbyname