Copy stable/9 to releng/9.3 as part of the 9.3-RELEASE cycle.

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

Finish MFC of r248291,249741:

Change 'status' command to produce one-line easy-parseable output.

Approved by: trociny

Preparation for MFC revs r248291 and r249741:

Add 'list' command, for now the exact equivalent of 'status',
so users of the latter could change their scripts.

This is direct commit to stable, and is temporary.

Requested by: Pete French <petefrench@ingresso.co.uk>
Approved by: trociny
2B cleaned after: 6 weeks

MFC r235873, r235967:

Fixes to man8 groff mandoc style, usage mistakes, or typos.

PR: 168016
Submitted by: Nobuyuki Koganemaru
Approved by: gjb (mentor)

MFC r229699, r229744, r229778, r229944, r229945, r229946, r230092, r230395,
r230396, r230436, r230457, r230515, r230976:

r229744 (pjd):

fork(2) returns -1 on failure, not some random negative number.

r229699 (pjd):

Constify argument.

r229778 (uqs):

Spelling fixes for sbin/

r229944 (pjd):

Don't touch pidfiles when running in foreground. Before that change we
would create an empty pidfile on start and check if it changed on SIGHUP.

r229945 (pjd):

For functions that return -1 on failure check exactly for -1 and not for
any negative number.

r229946 (pjd):

- Fix a bug where pidfile was removed in SIGHUP when it hasn't changed in
configuration file.
- Log the fact that pidfile has changed.

r230092 (pjd):

Style cleanups.

r230395 (pjd):

Remove unused token 'port'.

r230396 (pjd):

Remove another unused token.

r230436 (pjd):

Fix minor memory leak.

r230457 (pjd):

Free memory that won't be used in child.

r230515 (pjd):

- Fix documentation to note that /etc/hast.conf is the default configuration
file for hastd(8) and hastctl(8) and not hast.conf.
- In copyright statement correct that this file is documentation, not software.
- Bump date.

r230976 (pjd):

Fix typo in comment.

Copy head to stable/9 as part of 9.0-RELEASE release cycle.

Approved by: re (implicit)

hastd(8) maintains a map of dirty extents, not hastctl(8). Fix this.

Approved by: pjd (mentor)
MFC after: 3 days

In command line options allow size to be specified using k/M/G/T
suffixes.

Approved by: pjd (mentor)
MFC after: 1 week

Fix typos, spelling, formatting and mdoc mistakes found by Nobuyuki while
translating these manual pages. Minor corrections by me.

Submitted by: Nobuyuki Koganemaru <n-kogane@syd.odn.ne.jp>

Fix typo.

PR: docs/149033
Submitted by: Kolar <hsn@sendmail.cz>
MFC after: 3 days

mdoc: move remaining sections into consistent order

This pertains mostly to FILES, HISTORY, EXIT STATUS and AUTHORS sections.

Found by: mdocml lint run
Reviewed by: ru

Please welcome HAST - Highly Avalable Storage.

HAST allows to transparently store data on two physically separated machines
connected over the TCP/IP network. HAST works in Primary-Secondary
(Master-Backup, Master-Slave) configuration, which means that only one of the
cluster nodes can be active at any given time. Only Primary node is able to
handle I/O requests to HAST-managed devices. Currently HAST is limited to two
cluster nodes in total.

HAST operates on block level - it provides disk-like devices in /dev/hast/
directory for use by file systems and/or applications. Working on block level
makes it transparent for file systems and applications. There in no difference
between using HAST-provided device and raw disk, partition, etc. All of them
are just regular GEOM providers in FreeBSD.

For more information please consult hastd(8), hastctl(8) and hast.conf(5)
manual pages, as well as http://wiki.FreeBSD.org/HAST.

Sponsored by: FreeBSD Foundation
Sponsored by: OMCnet Internet Service GmbH
Sponsored by: TransIP BV