- Copy stable/10 (r259064) to releng/10.0 as part of the
10.0-RELEASE cycle.
- Update __FreeBSD_version [1]
- Set branch name to -RC1

[1] 10.0-CURRENT __FreeBSD_version value ended at '55', so
start releng/10.0 at '100' so the branch is started with
a value ending in zero.

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

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

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

The purpose of this change to the FFS layout policy is to reduce the
running time for a full fsck. It also reduces the random access time
for large files and speeds the traversal time for directory tree walks.

The key idea is to reserve a small area in each cylinder group
immediately following the inode blocks for the use of metadata,
specifically indirect blocks and directory contents. The new policy
is to preferentially place metadata in the metadata area and
everything else in the blocks that follow the metadata area.

The size of this area can be set when creating a filesystem using
newfs(8) or changed in an existing filesystem using tunefs(8).
Both utilities use the `-k held-for-metadata-blocks' option to
specify the amount of space to be held for metadata blocks in each
cylinder group. By default, newfs(8) sets this area to half of
minfree (typically 4% of the data area).

This work was inspired by a paper presented at Usenix's FAST '13:
www.usenix.org/conference/fast13/ffsck-fast-file-system-checker

Details of this implementation appears in the April 2013 of ;login:
www.usenix.org/publications/login/april-2013-volume-38-number-2.
A copy of the April 2013 ;login: paper can also be downloaded
from: www.mckusick.com/publications/faster_fsck.pdf.

Reviewed by: kib
Tested by: Peter Holm
MFC after: 4 weeks

Advertise growfs(8) a little better.

We now have multiple filesystems (UFS, ZFS, ...), so for tools that only
operate on one type of filesystem, mention this.
While here, capitalise the use of "UFS" in growfs.8 to match other uses of
the term in other man pages.

MFC after: 1 week

Add support for FS_TRIM to user-mode UFS utilities.

Reviewed by: mckusick, pjd, pho
Tested by: pho
MFC after: 1 month

- Merge soft-updates journaling from projects/suj/head into head. This
brings in support for an optional intent log which eliminates the need
for background fsck on unclean shutdown.

Sponsored by: iXsystems, Yahoo!, and Juniper.
With help from: McKusick and Peter Holm

Implement NFSv4 ACL support for UFS.

Reviewed by: rwatson

The tunefs utility does not work on active filesystems.

PR: docs/139705
Submitted by: Warren Block <wblock at wonkity dot com>
Approved by: imp (mentor, implicit)

Slightly improve gjournal documentation.

Reviewed by: pjd

o s/filesystem/file system/g.

Pointed out by: ru
Approved by: re (bmah)
MFC after: 3 days

o You have to reboot the system after tuning softupdates on the root
filesystem on to make SU work.

Approved by: re (hrs)
MFC after: 1 week

Add -J flag to both newfs(8) and tunefs(8) which allows to enable gjournal
support.
I left -j flag for UFS journal implementation which we may gain at some
point.

Sponsored by: home.pl

Expand *n't contractions.

Sort sections.

Remove advertising clause from University of California Regent's license,
per letter dated July 22, 1999.

Approved by: core, imp

Remove another reference to ffsinfo.8

Remove references to ffsinfo(8) for now. It was disconnected from
the build almost a year ago.

Sort options.

Bring in support for volume labels to the filesystem utilities.

Reviewed by: mckusick

Correct some of the style problems in this file:

I introduced a style problem when I sorted 'a' before 'A'; our
preferred order sorts 'A' first. Correct.

Use .Cm instead of .Ar.

Submitted by: bde

Introduce -a [enable|disable] and -l [enable|disable] flags to the tunefs
command, permitting it to set FS_ACLS and FS_MULTILABEL administrative
flags on UFS file systems.

Obtained from: TrustedBSD Project
Sponsored by: DARPA, Network Associates Laboratories

Remove the -a maxcontig option, the kernel doesn't inspect fs_maxcontig
anymore.

Sponsored by: DARPA & NAI Labs.

Fix some 'SYNOPSIS' and 'usage' messages.

s/filesystem/file system/g as discussed on -developers

mdoc(7) police: laundry.

The .Nm utility.

Don't say that an umounted filesystem is required for -n. An unmounted
filesystem is no more or less required for -n than for any other option.
The previous commit clarified the actual requirement.

This commit adds basic support for the UFS2 filesystem. The UFS2
filesystem expands the inode to 256 bytes to make space for 64-bit
block pointers. It also adds a file-creation time field, an ability
to use jumbo blocks per inode to allow extent like pointer density,
and space for extended attributes (up to twice the filesystem block
size worth of attributes, e.g., on a 16K filesystem, there is space
for 32K of attributes). UFS2 fully supports and runs existing UFS1
filesystems. New filesystems built using newfs can be built in either
UFS1 or UFS2 format using the -O option. In this commit UFS1 is
the default format, so if you want to build UFS2 format filesystems,
you must specify -O 2. This default will be changed to UFS2 when
UFS2 proves itself to be stable. In this commit the boot code for
reading UFS2 filesystems is not compiled (see /sys/boot/common/ufsread.c)
as there is insufficient space in the boot block. Once the size of the
boot block is increased, this code can be defined.

Things to note: the definition of SBSIZE has changed to SBLOCKSIZE.
The header file <ufs/ufs/dinode.h> must be included before
<ufs/ffs/fs.h> so as to get the definitions of ufs2_daddr_t and
ufs_lbn_t.

Still TODO:
Verify that the first level bootstraps work for all the architectures.
Convert the utility ffsinfo to understand UFS2 and test growfs.
Add support for the extended attribute storage. Update soft updates
to ensure integrity of extended attribute storage. Switch the
current extended attribute interfaces to use the extended attribute
storage. Add the extent like functionality (framework is there,
but is currently never used).

Sponsored by: DARPA & NAI Labs.
Reviewed by: Poul-Henning Kamp <phk@freebsd.org>

mdoc(7) police: markup nits.

'file system' > filesystem
add FILES section.

PR: 34239
Submitted by: Gary W. Swearingen <swear@blarg.net>

Expand the reserved space section. Explain how the amount of reserved
space can affect performance.

Submitted by: David Schultz <dschultz@uclink.Berkeley.EDU>

tunefs no longer outputs a warning if one tries to set soft-updates on
an unmounted filesystem.

PR: 32266
Submitted by: Maxim Konovalov <maxim@macomnet.ru>

mdoc(7) police: removed HISTORY info from the .Os call.

Add information about the new options to newfs and tunefs which set the
expected average file size and number of files per directory. Could do
with some fleshing out.

The tunefs code assumed that the last argument was the device specification.
We need to parse the arguments first, then open the device (if
specified) and then apply the changes. This change will disallow the
(undocumented) use of multiple instances of the same argument on the
same command line for the sack of a better error message.

Other changes are:
1) the softupdates (-n) now issue a warning about remaining unchanged
2) the usage and man page is changed to specify "space | time" instead of
"optimization preference".

PR: bin/23335
Submitted by:Mark Peek <mark@whistle.com>

Remove .Op when arg is required (special | filesystem). Document that at
least one flag is required and check this in the code. Make use of getopt(3).
Generalyze printing `... remains unchanged ...'.

mdoc(7) police: use the new features of the Nm macro.

Remove single-space hard sentence breaks. These degrade the quality
of the typeset output, tend to make diffs harder to read and provide
bad examples for new-comers to mdoc.

Document a waring that tunefs(8) emits when enabling/disabling
soft updates on an unmounted filesystem.

PR: docs/15657
Submitted by: Mark Ovens <mark@ukug.uk.FreeBSD.org>

$Id$ -> $FreeBSD$

Sort options alphabetically.

Document -n (soft-update) flag.
Add rcsid, remove unused #includes. Sync usage() and SYNOPSIS.

Reviewed by: dyson@freebsd.org (john Dyson), dg@root.com (david greenman)
Submitted by: Kirk McKusick (mcKusick@mckusick.com)
Obtained from: WHistle development tree

Correct some man page cross references and some file
locations.

Add (apparently) Larry McVoy's warning....

When tuneing filesystems with tunefs, it is not obvious what the current
parameters are. You can use dumpfs, but that's not obvious which settings
are tuneable, and is far from clear to the non-guru (it's like using a
hexdump of a tar archive to get a table-of-contents).

There is also an undocumented option in the man page that can be dangerous.
Suppose your disk driver decides to scramble all writes while you tell
tunefs to update all backup superblocks.

This suggested change adds a '-p' (print) switch to bring it in
line with some SVR4 systems.

(Slightly changed by me, mostly for optics. - joerg)

Submitted by: peter@haywire.dialix.com

Changed manual page to conform to the reality in FreeBSD.

This commit was generated by cvs2svn to compensate for changes in r1558,
which included commits to RCS files with non-trunk default branches.

BSD 4.4 Lite sbin Sources

Note: XNSrouted and routed NOT imported here, they shall be imported with
usr.sbin.