MFC r325035: MFV r325013,r325034: 640 number_to_scaled_string is duplicated in several commands

FreeBSD note: of all libcmdutils functionality ZFS (and other illumos
contrib code) currently uses only nicenum() function (which is similar
to humanize_number but has some formatting differences). For this
reason I decided to not port the whole library. As a result, nicenum.c
from libcmdutils is compiled into libzfs and libzpool. This is a bit
ugly, but works. If one day we are forced to create libillumos, then
the file should be moved to that library.

MFC r319746,r319747,r319769: 8269 dtrace stddev aggregation is normalized incorrectly

illumos/illumos-gate@79809f9cf402f130667349b2d4007ecd65d63c6f
https://github.com/illumos/illumos-gate/commit/79809f9cf402f130667349b2d4007ecd65d63c6f

https://www.illumos.org/issues/8269
It seems that currently normalization of stddev aggregation is done
incorrectly.
We divide both the sum of values and the sum of their squares by the
normalization factor. But we should divide the sum of squares by the
normalization factor squared to scale the original values properly.

FreeBSD note: the actual change was committed in r316853, this commit
adds the test files and record merge information.

Reviewed by: Bryan Cantrill <bryan@joyent.com>
Approved by: Robert Mustacchi <rm@joyent.com>
Author: Andriy Gapon <avg@FreeBSD.org>

Sponsored by: Panzura

MFC r290570:

Reduce the Makefile snippet complexity a bit

- Set BINDIR to TESTSDIR globally (and subsequently, remove all
`${FILESGROUP}DIR` setting because BINDIR is set to `TESTSDIR`)
- Set MAN to "" globally, instead of per-PROG

MFC r314654:

cddl: normalize paths using SRCTOP-relative paths or :H when possible

This simplifies make logic/output

While here, remove bogus CFLAGS which look for headers in cddl/lib/libumem.
There aren't any source files there (just Makefiles)

MFC r295643:

r295643 (by bdrewery):

Test directories can build in parallel fine.

MFC r289172,r290254:

r289172:

Refactor the test/ Makefiles after recent changes to bsd.test.mk (r289158) and
netbsd-tests.test.mk (r289151)

- Eliminate explicit OBJTOP/SRCTOP setting
- Convert all ad hoc NetBSD test integration over to netbsd-tests.test.mk
- Remove unnecessary TESTSDIR setting
- Use SRCTOP where possible for clarity

r290254:

Remove unused variable (SRCDIR)

MFC r277912,r278738,r279418,r280835,r288416:

r277912 (by markj):

Include required headers in DTrace test programs.

r278738 (by markj):

Tweak the fds test program so that it actually compiles. Also use 0 instead
of -1 for the bogus ioctl command so that dmesg doesn't get spammed with
sign extension warnings when the test program runs.

r279418 (by markj):

Add infrastructure to integrate the DTrace test suite with Kyua.

For each test category, we generate a script containing ATF test cases for
the tests under that category. Each test case simply runs dtest.pl (the
upstream test harness) with the corresponding test files. The exclude.sh
script is used to record info about tests which should be skipped or are
expected to fail; it is used to generate atf_skip and atf_expect_fail calls.
The genmakefiles.sh script can be used to regenerate the test makefiles when
new tests are brought it from upstream.

The test suite is currently not connected to the build as there is a small
number of lingering test issues which still need to be worked out. In the
meantime however, the test suite can be easily built and installed
manually from cddl/usr.sbin/dtrace/tests.

r280835 (by markj):

Replace dtest.pl, the upstream DTrace test suite harness, with a shell
script. This reimplementation is much simpler than dtest.pl and is more
amenable to being run under Kyua - dtest.pl writes error output to a
temporary directory that is deleted when the run finishes, making it hard
to debug test failures. This change also removes the test suite's dependency
on perl.

r288416 (by markj):

Update DTrace test makefiles after r288415.

MFC r283147:

Build cddl/{sbin,usr.bin,usr.sbin} in parallel as all of the applications are
freestanding (they require libraries build via make libraries in buildworld)

Sponsored by: EMC / Isilon Storage Division

MFC r264400,r265836:

r264400:

NO_MAN= has been deprecated in favor of MAN= for some time, go ahead
and finish the job. ncurses is now the only Makefile in the tree that
uses it since it wasn't a simple mechanical change, and will be
addressed in a future commit.

r265836:

Remove last two NO_MAN= in the tree. In both of these cases, MAN= is
what is needed.

MFC r268075: MFV r267565:

4757 ZFS embedded-data block pointers ("zero block compression")
4913 zfs release should not be subject to space checks

MFC r264741: Add placeholder Kyuafiles for various top-level hierarchies.

This is "make tinderbox" clean.

Copy head (r256279) to stable/10 as part of the 10.0-RELEASE cycle.

Approved by: re (implicit)
Sponsored by: The FreeBSD Foundation

Build all ZFS testing & debugging tools with -g.

These programs and everything using libzpool rely on the embedded asserts to
verify the correctness of operations. Given that, the core dumps would be
useless without debug symbols.

Merge libzfs_core branch:
includes MFV 238590, 238592, 247580

MFV 238590, 238592:
In the first zfs ioctl restructuring phase, the libzfs_core library was
introduced. It is a new thin library that wraps around kernel ioctl's.
The idea is to provide a forward-compatible way of dealing with new
features. Arguments are passed in nvlists and not random zfs_cmd fields,
new-style ioctls are logged to pool history using a new method of
history logging.

http://blog.delphix.com/matt/2012/01/17/the-future-of-libzfs/

MFV 247580 [1]:
To address issues of several deadlocks and race conditions the locking
code around dsl_dataset was rewritten and the interface to synctasks
was changed.

User-Visible Changes:
"zfs snapshot" can create more arbitrary snapshots at once (atomically)
"zfs destroy" destroys multiple snapshots at once
"zfs recv" has improved performance

Backward Compatibility:
I have extended the compatibility layer to support full backward
compatibility by remapping or rewriting the responsible ioctl arguments.
Old utilities are fully supported by the new kernel module.

Forward Compatibility:
New utilities work with old kernels with the following restrictions:
- creating, destroying, holding and releasing of multiple snapshots
at once is not supported, this includes recursive (-r) commands

Illumos ZFS issues:
2882 implement libzfs_core
2900 "zfs snapshot" should be able to create multiple,
arbitrary snapshots at once
3464 zfs synctask code needs restructuring

References:
https://www.illumos.org/issues/2882
https://www.illumos.org/issues/2900
https://www.illumos.org/issues/3464 [1]

MFC after: 1 month
Sponsored by: Hybrid Logic Inc. [1]

Implement DTrace for PowerPC. This includes both 32-bit and 64-bit.

There is one known issue: Some probes will display an error message along the
lines of: "Invalid address (0)"

I tested this with both a simple dtrace probe and dtruss on a few different
binaries on 32-bit. I only compiled 64-bit, did not run it, but I don't expect
problems without the modules loaded. Volunteers are welcome.

MFC after: 1 month

Merge recent zfs vendor changes, sync code and adjust userland DEBUG.

Illumos issued covered:
1884 Empty "used" field for zfs *space commands
3006 VERIFY[S,U,P] and ASSERT[S,U,P] frequently check if first argument
is zero
3028 zfs {group,user}space -n prints (null) instead of numeric GID/UID
3048 zfs {user,group}space [-s|-S] is broken
3049 zfs {user,group}space -t doesn't really filter the results
3060 zfs {user,group}space -H output isn't tab-delimited
3061 zfs {user,group}space -o doesn't use specified fields order
3064 usr/src/cmd/zpool/zpool_main.c misspells "successful"
3093 zfs {user,group}space's -i is noop
3098 zfs userspace/groupspace fail without saying why when run as non-root

References:
https://www.illumos.org/issues/ + [issue_id]

Obtained from: illumos (vendor/illumos, vendor/illumos-sys)
MFC after: 2 weeks

Remove trailing whitespace.

Remove trailing whitespace.

Introduce "feature flags" for ZFS pools (bump SPA version to 5000).
Add first feature "com.delphix:async_destroy" (asynchronous destroy
of ZFS datasets).
Implement features support in ZFS boot code.

Illumos revisions merged:
13700:2889e2596bd6
13701:1949b688d5fb
2619 asynchronous destruction of ZFS file systems
2747 SPA versioning with zfs feature flags

References:
https://www.illumos.org/issues/2619
https://www.illumos.org/issues/2747

Obtained from: illumos (issue #2619, #2747)
MFC after: 1 month

Enable build of DTrace-related userland parts for MIPS

For now, remove MANFILTER from ZFS manpages (bad effect on html output).

MFC after: 4 days

Update and desolarization of zdb(8) and zstreamdump(1) manual pages:
- synchronized to match new vendor code [1]
- removed ATTRIBUTES sections
- updated SEE ALSO sections
- properly updated copyright information (required by CDDL)
- remove empty lines via MANFILTER

Obtained from: Illumos [1]
MFC after: 5 days

Fix a few gratuitous library dependencies. Some of the ZFS utilities
are linked with libraries they don't use:

- zinject doesn't use libavl
- ztest doesn't use libz
- zdb uses neither libavl nor libz
- zfs uses neither libbsdxml nor libm, nor libsbuf
- zpool uses neither libbsdxml nor libm, nor libsbuf

In addition, libzfs needs libm because it uses pow(), however it isn't
linked with -lm. This went unnoticed because all its users had -lm before.

Reviewed by: pjd, mm
Approved by: kib (mentor)
MFC after: 1 week

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

Minor grammar fixes.

Add a man page for plockstat.

Sponsored by: The FreeBSD Foundation

Install dtruss.

Sponsored by: The FreeBSD Foundation

Add a man page for dtruss.

Sponsored by: The FreeBSD Foundation

Use double quotes when checking the value of MACHINE_ARCH.

Sponsored by: The FreeBSD Foundation

Add a Makefile for dtruss.

Sponsored by: The FreeBSD Foundation

Port plockstat to FreeBSD. This will be connected to the build later.

Sponsored by: The FreeBSD Foundation

lockstat(1) now depends on libutil and librtld_db.

Sponsored by: The FreeBSD Foundation

libdtrace, dtrace(1) and lockstat(1) are for i386 and amd64 only right
now.

Sponsored by: The FreeBSD Foundation

dtrace(1) now depends on libutil and librtld_db.

Sponsored by: The FreeBSD Foundation

Remove manual .includes in cddl Makefiles

- Break the dependency on ../Makefile.inc for .PATH, and include
../Makefile.inc implicitly. This is required to ...
- Set WARNS?=6 in top-level Makefile.inc
- Remove now redundant WARNS settings, add WARNS?=0 where appropriate
- Remove redundant SHLIB_MAJOR overrides
- Use NO_MAN, not MK_MAN=no
- Remove redundant inclusion of bsd.own.mk
- Order Makefiles more according to style.Makefile(9)
- Reduce diff of cddl Makefiles against each other

No objection: pjd
Approved by: ed (co-mentor)

Fixed dependencies (make checkdpadd).

Add the OpenSolaris lockstat(1M) command. Requires the dtrace driver,
the lockstat provider, and the ksyms(4) pseudo driver kernel modules.

Approved by: gnn (mentor)

Switch over to gnu99 compilation on default for userland.

Tested by: make universe
Tested by: ports exp build (done by pav)
Reviewed by: ru
Reviewed by: silence on arch
Approved by: ed (mentor)

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

Add the dtrace client app to the build.

Remove options MK_LIBKSE and DEFAULT_THREAD_LIB now that we no longer
build libkse. This should fix WITHOUT_LIBTHR builds as a side effect.

The sources covered by Sun's CDDL have been repo copied below the
src/cddl and src/sys/cddl directories per the core@ decision following
the license review.

This change modifies the affected Makefiles to reference the sources
in their new location.

Tweak the handling of "WITHOUT_LIBPTHREAD". Also remove the accidental
treatment of 'LIBKSE' as an "old style" knob.

Submitted by: ru
Approved by: re(kensmith)

Repo copy libpthreads to libkse.
This introduces the WITHOUT_LIBKSE nob,
and changes WITHOUT_LIBPTHREADS to mean with neither threading libs.
Approved by: re(kensmith)

Don't build bits that depend on the pthreads support if a
system was configured without such support.

Approved by: re (kensmith)

Fixed static linkage (build with -DNO_SHARED).

Approved by: re (kensmith)

- Reduce number of atomic operations needed to be implemented in asm by
implementing some of them using existing ones.
- Allow to compile ZFS on all archs and use atomic operations surrounded
by global mutex on archs we don't have or can't have all atomic
operations needed by ZFS.

Link libzpool, ztest and zdb against libpthread.

Requested by: ru

Apply a set of style.Makefile(5) changes to src/cddl/ makefiles.
There are some insignificant non-style changes as well.

Not fixed: makefiles use ${LIBTHR} that doesn't exist, thus
breaking "make checkdpadd" and not tracking dependencies
properly.

Approved by: pjd

Build ZFS on amd64 and pc98.

Approved by: pjd@

Please welcome ZFS - The last word in file systems.

ZFS file system was ported from OpenSolaris operating system. The code in under
CDDL license.

I'd like to thank all SUN developers that created this great piece of software.

Supported by: Wheel LTD (http://www.wheel.pl/)
Supported by: The FreeBSD Foundation (http://www.freebsdfoundation.org/)
Supported by: Sentex (http://www.sentex.net/)